From 220b0f5755f86745e4e16d001fe6f46b448565fa Mon Sep 17 00:00:00 2001 From: "Artem B. Bityutskiy" Date: Wed, 5 Jul 2006 11:04:02 +0400 Subject: [PATCH] [MTD] NAND: fix dead URL in Kconfig Signed-off-by: Artem B. Bityutskiy --- drivers/mtd/nand/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 3db77eec0ed..c99302ed382 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -11,7 +11,7 @@ config MTD_NAND help This enables support for accessing all type of NAND flash devices. For further information see - . + . config MTD_NAND_VERIFY_WRITE bool "Verify NAND page writes" -- cgit v1.2.3-70-g09d2 From 3a09aa4730f021ad917a66a0c6d2ff6d616a7e4f Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 3 Jul 2006 14:28:14 +0200 Subject: [POWERPC] fix up front-LED Kconfig Rather long patch, apparently no one has updated the pmac32_defconfig in a while. Signed-off-by: Paul Mackerras --- arch/powerpc/configs/pmac32_defconfig | 112 +++++++++++++++++++++++++++++----- drivers/ide/Kconfig | 14 ----- drivers/macintosh/Kconfig | 9 +++ drivers/macintosh/via-pmu-led.c | 2 +- 4 files changed, 106 insertions(+), 31 deletions(-) (limited to 'drivers') diff --git a/arch/powerpc/configs/pmac32_defconfig b/arch/powerpc/configs/pmac32_defconfig index addc79381c3..3545af9896a 100644 --- a/arch/powerpc/configs/pmac32_defconfig +++ b/arch/powerpc/configs/pmac32_defconfig @@ -1,16 +1,18 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.17-rc5 -# Mon May 29 14:47:49 2006 +# Linux kernel version: 2.6.17 +# Mon Jul 3 14:20:49 2006 # # CONFIG_PPC64 is not set CONFIG_PPC32=y CONFIG_PPC_MERGE=y CONFIG_MMU=y CONFIG_GENERIC_HARDIRQS=y +CONFIG_IRQ_PER_CPU=y CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_PPC=y CONFIG_EARLY_PRINTK=y CONFIG_GENERIC_NVRAM=y @@ -29,6 +31,7 @@ CONFIG_CLASSIC32=y # CONFIG_PPC_82xx is not set # CONFIG_PPC_83xx is not set # CONFIG_PPC_85xx is not set +# CONFIG_PPC_86xx is not set # CONFIG_40x is not set # CONFIG_44x is not set # CONFIG_8xx is not set @@ -39,6 +42,7 @@ CONFIG_ALTIVEC=y CONFIG_PPC_STD_MMU=y CONFIG_PPC_STD_MMU_32=y # CONFIG_SMP is not set +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # # Code maturity level options @@ -72,10 +76,12 @@ CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y +CONFIG_RT_MUTEXES=y CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_SHMEM=y CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 # CONFIG_SLOB is not set @@ -119,6 +125,9 @@ CONFIG_PPC_MULTIPLATFORM=y # CONFIG_APUS is not set # CONFIG_PPC_CHRP is not set CONFIG_PPC_PMAC=y +# CONFIG_PPC_CELL is not set +# CONFIG_PPC_CELL_NATIVE is not set +# CONFIG_UDBG_RTAS_CONSOLE is not set CONFIG_MPIC=y # CONFIG_PPC_RTAS is not set # CONFIG_MMIO_NVRAM is not set @@ -154,6 +163,7 @@ CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT is not set CONFIG_BINFMT_ELF=y CONFIG_BINFMT_MISC=m +CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y # CONFIG_KEXEC is not set CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_SELECT_MEMORY_MODEL=y @@ -164,6 +174,7 @@ CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y # CONFIG_SPARSEMEM_STATIC is not set CONFIG_SPLIT_PTLOCK_CPUS=4 +# CONFIG_RESOURCES_64BIT is not set CONFIG_PROC_DEVICETREE=y # CONFIG_CMDLINE_BOOL is not set CONFIG_PM=y @@ -182,6 +193,7 @@ CONFIG_GENERIC_ISA_DMA=y CONFIG_PPC_INDIRECT_PCI=y CONFIG_PCI=y CONFIG_PCI_DOMAINS=y +# CONFIG_PCIEPORTBUS is not set # CONFIG_PCI_DEBUG is not set # @@ -256,6 +268,8 @@ CONFIG_INET_ESP=y # CONFIG_INET_IPCOMP is not set # CONFIG_INET_XFRM_TUNNEL is not set # CONFIG_INET_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set @@ -268,6 +282,7 @@ CONFIG_TCP_CONG_BIC=y # CONFIG_IPV6 is not set # CONFIG_INET6_XFRM_TUNNEL is not set # CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set CONFIG_NETFILTER=y # CONFIG_NETFILTER_DEBUG is not set @@ -292,9 +307,11 @@ CONFIG_NETFILTER_XT_MATCH_MARK=m CONFIG_NETFILTER_XT_MATCH_POLICY=m CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m +# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set CONFIG_NETFILTER_XT_MATCH_REALM=m CONFIG_NETFILTER_XT_MATCH_SCTP=m CONFIG_NETFILTER_XT_MATCH_STATE=m +# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set CONFIG_NETFILTER_XT_MATCH_STRING=m CONFIG_NETFILTER_XT_MATCH_TCPMSS=m @@ -313,6 +330,7 @@ CONFIG_IP_NF_TFTP=m CONFIG_IP_NF_AMANDA=m CONFIG_IP_NF_PPTP=m CONFIG_IP_NF_H323=m +# CONFIG_IP_NF_SIP is not set # CONFIG_IP_NF_QUEUE is not set CONFIG_IP_NF_IPTABLES=m CONFIG_IP_NF_MATCH_IPRANGE=m @@ -457,6 +475,7 @@ CONFIG_IRTTY_SIR=m # CONFIG_ALI_FIR is not set # CONFIG_VLSI_FIR is not set # CONFIG_VIA_FIR is not set +# CONFIG_MCS_FIR is not set CONFIG_BT=m CONFIG_BT_L2CAP=m CONFIG_BT_SCO=m @@ -500,6 +519,7 @@ CONFIG_WIRELESS_EXT=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=y # CONFIG_DEBUG_DRIVER is not set +# CONFIG_SYS_HYPERVISOR is not set # # Connector - unified userspace <-> kernelspace linker @@ -600,7 +620,6 @@ CONFIG_BLK_DEV_PDC202XX_NEW=y CONFIG_BLK_DEV_IDE_PMAC=y CONFIG_BLK_DEV_IDE_PMAC_ATA100FIRST=y CONFIG_BLK_DEV_IDEDMA_PMAC=y -CONFIG_BLK_DEV_IDE_PMAC_BLINK=y # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_IVB is not set @@ -661,6 +680,7 @@ CONFIG_SCSI_AIC7XXX_OLD=m # CONFIG_MEGARAID_LEGACY is not set # CONFIG_MEGARAID_SAS is not set # CONFIG_SCSI_SATA is not set +# CONFIG_SCSI_HPTIOP is not set # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_EATA is not set @@ -705,9 +725,7 @@ CONFIG_MD_LINEAR=m CONFIG_MD_RAID0=m CONFIG_MD_RAID1=m CONFIG_MD_RAID10=m -CONFIG_MD_RAID5=m -CONFIG_MD_RAID5_RESHAPE=y -CONFIG_MD_RAID6=m +# CONFIG_MD_RAID456 is not set CONFIG_MD_MULTIPATH=m CONFIG_MD_FAULTY=m CONFIG_BLK_DEV_DM=m @@ -750,7 +768,6 @@ CONFIG_IEEE1394_OHCI1394=m # CONFIG_IEEE1394_VIDEO1394=m CONFIG_IEEE1394_SBP2=m -# CONFIG_IEEE1394_SBP2_PHYS_DMA is not set # CONFIG_IEEE1394_ETH1394 is not set CONFIG_IEEE1394_DV1394=m CONFIG_IEEE1394_RAWIO=m @@ -766,9 +783,12 @@ CONFIG_IEEE1394_RAWIO=m CONFIG_ADB=y CONFIG_ADB_CUDA=y CONFIG_ADB_PMU=y +CONFIG_ADB_PMU_LED=y +CONFIG_ADB_PMU_LED_IDE=y CONFIG_PMAC_APM_EMU=m CONFIG_PMAC_MEDIABAY=y CONFIG_PMAC_BACKLIGHT=y +CONFIG_PMAC_BACKLIGHT_LEGACY=y CONFIG_INPUT_ADBHID=y CONFIG_MAC_EMUMOUSEBTN=y CONFIG_THERM_WINDTUNNEL=m @@ -858,6 +878,7 @@ CONFIG_PCNET32=y # CONFIG_CHELSIO_T1 is not set # CONFIG_IXGB is not set # CONFIG_S2IO is not set +# CONFIG_MYRI10GE is not set # # Token Ring devices @@ -908,6 +929,7 @@ CONFIG_APPLE_AIRPORT=m # Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support # CONFIG_PRISM54=m +# CONFIG_USB_ZD1201 is not set # CONFIG_HOSTAP is not set CONFIG_NET_WIRELESS=y @@ -998,6 +1020,7 @@ CONFIG_SERIO=y CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y +# CONFIG_VT_HW_CONSOLE_BINDING is not set # CONFIG_SERIAL_NONSTANDARD is not set # @@ -1029,6 +1052,7 @@ CONFIG_LEGACY_PTY_COUNT=256 # Watchdog Cards # # CONFIG_WATCHDOG is not set +# CONFIG_HW_RANDOM is not set CONFIG_NVRAM=y CONFIG_GEN_RTC=y # CONFIG_GEN_RTC_X is not set @@ -1040,6 +1064,7 @@ CONFIG_GEN_RTC=y # Ftape, the floppy tape device driver # CONFIG_AGP=m +# CONFIG_AGP_SIS is not set # CONFIG_AGP_VIA is not set CONFIG_AGP_UNINORTH=m CONFIG_DRM=m @@ -1092,6 +1117,7 @@ CONFIG_I2C_ALGOBIT=y CONFIG_I2C_POWERMAC=y # CONFIG_I2C_MPC is not set # CONFIG_I2C_NFORCE2 is not set +# CONFIG_I2C_OCORES is not set # CONFIG_I2C_PARPORT_LIGHT is not set # CONFIG_I2C_PROSAVAGE is not set # CONFIG_I2C_SAVAGE4 is not set @@ -1156,12 +1182,13 @@ CONFIG_VIDEO_V4L2=y # # Graphics support # +# CONFIG_FIRMWARE_EDID is not set CONFIG_FB=y CONFIG_FB_CFB_FILLRECT=y CONFIG_FB_CFB_COPYAREA=y CONFIG_FB_CFB_IMAGEBLIT=y CONFIG_FB_MACMODES=y -CONFIG_FB_FIRMWARE_EDID=y +CONFIG_FB_BACKLIGHT=y CONFIG_FB_MODE_HELPERS=y CONFIG_FB_TILEBLITTING=y # CONFIG_FB_CIRRUS is not set @@ -1178,6 +1205,7 @@ CONFIG_FB_IMSTT=y # CONFIG_FB_S1D13XXX is not set CONFIG_FB_NVIDIA=y CONFIG_FB_NVIDIA_I2C=y +CONFIG_FB_NVIDIA_BACKLIGHT=y # CONFIG_FB_RIVA is not set CONFIG_FB_MATROX=y CONFIG_FB_MATROX_MILLENIUM=y @@ -1187,12 +1215,15 @@ CONFIG_FB_MATROX_MYSTIQUE=y # CONFIG_FB_MATROX_MULTIHEAD is not set CONFIG_FB_RADEON=y CONFIG_FB_RADEON_I2C=y +CONFIG_FB_RADEON_BACKLIGHT=y # CONFIG_FB_RADEON_DEBUG is not set CONFIG_FB_ATY128=y +CONFIG_FB_ATY128_BACKLIGHT=y CONFIG_FB_ATY=y CONFIG_FB_ATY_CT=y # CONFIG_FB_ATY_GENERIC_LCD is not set CONFIG_FB_ATY_GX=y +CONFIG_FB_ATY_BACKLIGHT=y # CONFIG_FB_SAVAGE is not set # CONFIG_FB_SIS is not set # CONFIG_FB_NEOMAGIC is not set @@ -1221,7 +1252,11 @@ CONFIG_LOGO=y CONFIG_LOGO_LINUX_MONO=y CONFIG_LOGO_LINUX_VGA16=y CONFIG_LOGO_LINUX_CLUT224=y -# CONFIG_BACKLIGHT_LCD_SUPPORT is not set +CONFIG_BACKLIGHT_LCD_SUPPORT=y +CONFIG_BACKLIGHT_CLASS_DEVICE=y +CONFIG_BACKLIGHT_DEVICE=y +CONFIG_LCD_CLASS_DEVICE=m +CONFIG_LCD_DEVICE=y # # Sound @@ -1278,6 +1313,18 @@ CONFIG_SND_DUMMY=m # CONFIG_SND_CMIPCI is not set # CONFIG_SND_CS4281 is not set # CONFIG_SND_CS46XX is not set +# CONFIG_SND_DARLA20 is not set +# CONFIG_SND_GINA20 is not set +# CONFIG_SND_LAYLA20 is not set +# CONFIG_SND_DARLA24 is not set +# CONFIG_SND_GINA24 is not set +# CONFIG_SND_LAYLA24 is not set +# CONFIG_SND_MONA is not set +# CONFIG_SND_MIA is not set +# CONFIG_SND_ECHO3G is not set +# CONFIG_SND_INDIGO is not set +# CONFIG_SND_INDIGOIO is not set +# CONFIG_SND_INDIGODJ is not set # CONFIG_SND_EMU10K1 is not set # CONFIG_SND_EMU10K1X is not set # CONFIG_SND_ENS1370 is not set @@ -1314,6 +1361,17 @@ CONFIG_SND_DUMMY=m CONFIG_SND_POWERMAC=m CONFIG_SND_POWERMAC_AUTO_DRC=y +# +# Apple Onboard Audio driver +# +CONFIG_SND_AOA=m +CONFIG_SND_AOA_FABRIC_LAYOUT=m +CONFIG_SND_AOA_ONYX=m +CONFIG_SND_AOA_TAS=m +CONFIG_SND_AOA_TOONIE=m +CONFIG_SND_AOA_SOUNDBUS=m +CONFIG_SND_AOA_SOUNDBUS_I2S=m + # # USB devices # @@ -1355,6 +1413,7 @@ CONFIG_USB_DYNAMIC_MINORS=y CONFIG_USB_EHCI_HCD=m CONFIG_USB_EHCI_SPLIT_ISO=y CONFIG_USB_EHCI_ROOT_HUB_TT=y +# CONFIG_USB_EHCI_TT_NEWSCHED is not set # CONFIG_USB_ISP116X_HCD is not set CONFIG_USB_OHCI_HCD=y # CONFIG_USB_OHCI_BIG_ENDIAN is not set @@ -1431,7 +1490,6 @@ CONFIG_USB_NET_NET1080=m # CONFIG_USB_NET_RNDIS_HOST is not set # CONFIG_USB_NET_CDC_SUBSET is not set CONFIG_USB_NET_ZAURUS=m -# CONFIG_USB_ZD1201 is not set CONFIG_USB_MON=y # @@ -1499,10 +1557,12 @@ CONFIG_USB_EZUSB=y # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set # CONFIG_USB_LED is not set +# CONFIG_USB_CY7C63 is not set # CONFIG_USB_CYTHERM is not set # CONFIG_USB_PHIDGETKIT is not set # CONFIG_USB_PHIDGETSERVO is not set # CONFIG_USB_IDMOUSE is not set +CONFIG_USB_APPLEDISPLAY=m # CONFIG_USB_SISUSBVGA is not set # CONFIG_USB_LD is not set # CONFIG_USB_TEST is not set @@ -1524,7 +1584,8 @@ CONFIG_USB_EZUSB=y # # LED devices # -# CONFIG_NEW_LEDS is not set +CONFIG_NEW_LEDS=y +CONFIG_LEDS_CLASS=y # # LED drivers @@ -1533,6 +1594,10 @@ CONFIG_USB_EZUSB=y # # LED Triggers # +CONFIG_LEDS_TRIGGERS=y +# CONFIG_LEDS_TRIGGER_TIMER is not set +CONFIG_LEDS_TRIGGER_IDE_DISK=y +# CONFIG_LEDS_TRIGGER_HEARTBEAT is not set # # InfiniBand support @@ -1548,6 +1613,19 @@ CONFIG_USB_EZUSB=y # # CONFIG_RTC_CLASS is not set +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + # # File systems # @@ -1569,6 +1647,7 @@ CONFIG_FS_POSIX_ACL=y # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set CONFIG_DNOTIFY=y # CONFIG_AUTOFS_FS is not set @@ -1649,6 +1728,7 @@ CONFIG_RPCSEC_GSS_KRB5=y CONFIG_SMB_FS=m # CONFIG_SMB_NLS_DEFAULT is not set # CONFIG_CIFS is not set +# CONFIG_CIFS_DEBUG2 is not set # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set @@ -1732,6 +1812,7 @@ CONFIG_TEXTSEARCH=y CONFIG_TEXTSEARCH_KMP=m CONFIG_TEXTSEARCH_BM=m CONFIG_TEXTSEARCH_FSM=m +CONFIG_PLIST=y # # Instrumentation Support @@ -1744,12 +1825,15 @@ CONFIG_OPROFILE=y # # CONFIG_PRINTK_TIME is not set # CONFIG_MAGIC_SYSRQ is not set +# CONFIG_UNUSED_SYMBOLS is not set CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=14 CONFIG_DETECT_SOFTLOCKUP=y # CONFIG_SCHEDSTATS is not set # CONFIG_DEBUG_SLAB is not set # CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set # CONFIG_DEBUG_KOBJECT is not set @@ -1763,11 +1847,7 @@ CONFIG_XMON=y CONFIG_XMON_DEFAULT=y # CONFIG_BDI_SWITCH is not set CONFIG_BOOTX_TEXT=y -# CONFIG_PPC_EARLY_DEBUG_LPAR is not set -# CONFIG_PPC_EARLY_DEBUG_G5 is not set -# CONFIG_PPC_EARLY_DEBUG_RTAS is not set -# CONFIG_PPC_EARLY_DEBUG_MAPLE is not set -# CONFIG_PPC_EARLY_DEBUG_ISERIES is not set +# CONFIG_PPC_EARLY_DEBUG is not set # # Security options diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index d1266fe2d1a..53bba41f29b 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -773,20 +773,6 @@ config BLK_DEV_IDEDMA_PMAC to transfer data to and from memory. Saying Y is safe and improves performance. -config BLK_DEV_IDE_PMAC_BLINK - bool "Blink laptop LED on drive activity (DEPRECATED)" - depends on BLK_DEV_IDE_PMAC && ADB_PMU - select ADB_PMU_LED - select LEDS_TRIGGERS - select LEDS_TRIGGER_IDE_DISK - help - This option enables the use of the sleep LED as a hard drive - activity LED. - This option is deprecated, it only selects ADB_PMU_LED and - LEDS_TRIGGER_IDE_DISK and changes the code in the new led class - device to default to the ide-disk trigger (which should be set - from userspace via sysfs). - config BLK_DEV_IDE_SWARM tristate "IDE for Sibyte evaluation boards" depends on SIBYTE_SB1xxx_SOC diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig index 54f3f6b94ef..dc6003859e5 100644 --- a/drivers/macintosh/Kconfig +++ b/drivers/macintosh/Kconfig @@ -90,6 +90,15 @@ config ADB_PMU_LED and the ide-disk LED trigger and configure appropriately through sysfs. +config ADB_PMU_LED_IDE + bool "Use front LED as IDE LED by default" + depends on ADB_PMU_LED + select LEDS_TRIGGERS + select LEDS_TRIGGER_IDE_DISK + help + This option makes the front LED default to the IDE trigger + so that it blinks on IDE activity. + config PMAC_SMU bool "Support for SMU based PowerMacs" depends on PPC_PMAC64 diff --git a/drivers/macintosh/via-pmu-led.c b/drivers/macintosh/via-pmu-led.c index af8375ed0f5..5189d5454b1 100644 --- a/drivers/macintosh/via-pmu-led.c +++ b/drivers/macintosh/via-pmu-led.c @@ -74,7 +74,7 @@ static void pmu_led_set(struct led_classdev *led_cdev, static struct led_classdev pmu_led = { .name = "pmu-front-led", -#ifdef CONFIG_BLK_DEV_IDE_PMAC_BLINK +#ifdef CONFIG_ADB_PMU_LED_IDE .default_trigger = "ide-disk", #endif .brightness_set = pmu_led_set, -- cgit v1.2.3-70-g09d2 From a45b83957deabbdac9a3d908c6ca4c25f05ce1ad Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 4 Jul 2006 15:06:20 +1000 Subject: [POWERPC] Add support for briq front panel This adds the driver for the Briq front panel. This is a cleaned up version of a driver that has been floating around for some time now, initially written by Karsten Jeppesen and cleaned up by jk and myself. Signed-off-by: Jeremy Kerr Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- drivers/char/Kconfig | 14 +++ drivers/char/Makefile | 1 + drivers/char/briq_panel.c | 268 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 283 insertions(+) create mode 100644 drivers/char/briq_panel.c (limited to 'drivers') diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index c40e487d9f5..11de59ff422 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -495,6 +495,20 @@ config LEGACY_PTY_COUNT When not in use, each legacy PTY occupies 12 bytes on 32-bit architectures and 24 bytes on 64-bit architectures. +config BRIQ_PANEL + tristate 'Total Impact briQ front panel driver' + ---help--- + The briQ is a small footprint CHRP computer with a frontpanel VFD, a + tristate led and two switches. It is the size of a CDROM drive. + + If you have such one and want anything showing on the VFD then you + must answer Y here. + + To compile this driver as a module, choose M here: the + module will be called briq_panel. + + It's safe to say N here. + config PRINTER tristate "Parallel printer support" depends on PARPORT diff --git a/drivers/char/Makefile b/drivers/char/Makefile index 6e0f4469d8b..7a7ee572127 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -51,6 +51,7 @@ obj-$(CONFIG_VIOCONS) += viocons.o obj-$(CONFIG_VIOTAPE) += viotape.o obj-$(CONFIG_HVCS) += hvcs.o obj-$(CONFIG_SGI_MBCS) += mbcs.o +obj-$(CONFIG_BRIQ_PANEL) += briq_panel.o obj-$(CONFIG_PRINTER) += lp.o obj-$(CONFIG_TIPAR) += tipar.o diff --git a/drivers/char/briq_panel.c b/drivers/char/briq_panel.c new file mode 100644 index 00000000000..a0e5eac5f33 --- /dev/null +++ b/drivers/char/briq_panel.c @@ -0,0 +1,268 @@ +/* + * Drivers for the Total Impact PPC based computer "BRIQ" + * by Dr. Karsten Jeppesen + * + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#define BRIQ_PANEL_MINOR 156 +#define BRIQ_PANEL_VFD_IOPORT 0x0390 +#define BRIQ_PANEL_LED_IOPORT 0x0398 +#define BRIQ_PANEL_VER "1.1 (04/20/2002)" +#define BRIQ_PANEL_MSG0 "Loading Linux" + +static int vfd_is_open; +static unsigned char vfd[40]; +static int vfd_cursor; +static unsigned char ledpb, led; + +static void update_vfd(void) +{ + int i; + + /* cursor home */ + outb(0x02, BRIQ_PANEL_VFD_IOPORT); + for (i=0; i<20; i++) + outb(vfd[i], BRIQ_PANEL_VFD_IOPORT + 1); + + /* cursor to next line */ + outb(0xc0, BRIQ_PANEL_VFD_IOPORT); + for (i=20; i<40; i++) + outb(vfd[i], BRIQ_PANEL_VFD_IOPORT + 1); + +} + +static void set_led(char state) +{ + if (state == 'R') + led = 0x01; + else if (state == 'G') + led = 0x02; + else if (state == 'Y') + led = 0x03; + else if (state == 'X') + led = 0x00; + outb(led, BRIQ_PANEL_LED_IOPORT); +} + +static int briq_panel_open(struct inode *ino, struct file *filep) +{ + /* enforce single access */ + if (vfd_is_open) + return -EBUSY; + vfd_is_open = 1; + + return 0; +} + +static int briq_panel_release(struct inode *ino, struct file *filep) +{ + if (!vfd_is_open) + return -ENODEV; + + vfd_is_open = 0; + + return 0; +} + +static ssize_t briq_panel_read(struct file *file, char *buf, size_t count, + loff_t *ppos) +{ + unsigned short c; + unsigned char cp; + +#if 0 /* Can't seek (pread) on this device */ + if (ppos != &file->f_pos) + return -ESPIPE; +#endif + + if (!vfd_is_open) + return -ENODEV; + + c = (inb(BRIQ_PANEL_LED_IOPORT) & 0x000c) | (ledpb & 0x0003); + set_led(' '); + /* upper button released */ + if ((!(ledpb & 0x0004)) && (c & 0x0004)) { + cp = ' '; + ledpb = c; + if (copy_to_user(buf, &cp, 1)) + return -EFAULT; + return 1; + } + /* lower button released */ + else if ((!(ledpb & 0x0008)) && (c & 0x0008)) { + cp = '\r'; + ledpb = c; + if (copy_to_user(buf, &cp, 1)) + return -EFAULT; + return 1; + } else { + ledpb = c; + return 0; + } +} + +static void scroll_vfd( void ) +{ + int i; + + for (i=0; i<20; i++) { + vfd[i] = vfd[i+20]; + vfd[i+20] = ' '; + } + vfd_cursor = 20; +} + +static ssize_t briq_panel_write(struct file *file, const char *buf, size_t len, + loff_t *ppos) +{ + size_t indx = len; + int i, esc = 0; + +#if 0 /* Can't seek (pwrite) on this device */ + if (ppos != &file->f_pos) + return -ESPIPE; +#endif + + if (!vfd_is_open) + return -EBUSY; + + for (;;) { + if (!indx) + break; + if (esc) { + set_led(*buf); + esc = 0; + } else if (*buf == 27) { + esc = 1; + } else if (*buf == 12) { + /* do a form feed */ + for (i=0; i<40; i++) + vfd[i] = ' '; + vfd_cursor = 0; + } else if (*buf == 10) { + if (vfd_cursor < 20) + vfd_cursor = 20; + else if (vfd_cursor < 40) + vfd_cursor = 40; + else if (vfd_cursor < 60) + vfd_cursor = 60; + if (vfd_cursor > 59) + scroll_vfd(); + } else { + /* just a character */ + if (vfd_cursor > 39) + scroll_vfd(); + vfd[vfd_cursor++] = *buf; + } + indx--; + buf++; + } + update_vfd(); + + return len; +} + +static struct file_operations briq_panel_fops = { + .owner = THIS_MODULE, + .read = briq_panel_read, + .write = briq_panel_write, + .open = briq_panel_open, + .release = briq_panel_release, +}; + +static struct miscdevice briq_panel_miscdev = { + BRIQ_PANEL_MINOR, + "briq_panel", + &briq_panel_fops +}; + +static int __init briq_panel_init(void) +{ + struct device_node *root = find_path_device("/"); + char *machine; + int i; + + machine = get_property(root, "model", NULL); + if (!machine || strncmp(machine, "TotalImpact,BRIQ-1", 18) != 0) + return -ENODEV; + + printk(KERN_INFO + "briq_panel: v%s Dr. Karsten Jeppesen (kj@totalimpact.com)\n", + BRIQ_PANEL_VER); + + if (!request_region(BRIQ_PANEL_VFD_IOPORT, 4, "BRIQ Front Panel")) + return -EBUSY; + + if (!request_region(BRIQ_PANEL_LED_IOPORT, 2, "BRIQ Front Panel")) { + release_region(BRIQ_PANEL_VFD_IOPORT, 4); + return -EBUSY; + } + ledpb = inb(BRIQ_PANEL_LED_IOPORT) & 0x000c; + + if (misc_register(&briq_panel_miscdev) < 0) { + release_region(BRIQ_PANEL_VFD_IOPORT, 4); + release_region(BRIQ_PANEL_LED_IOPORT, 2); + return -EBUSY; + } + + outb(0x38, BRIQ_PANEL_VFD_IOPORT); /* Function set */ + outb(0x01, BRIQ_PANEL_VFD_IOPORT); /* Clear display */ + outb(0x0c, BRIQ_PANEL_VFD_IOPORT); /* Display on */ + outb(0x06, BRIQ_PANEL_VFD_IOPORT); /* Entry normal */ + for (i=0; i<40; i++) + vfd[i]=' '; +#ifndef MODULE + vfd[0] = 'L'; + vfd[1] = 'o'; + vfd[2] = 'a'; + vfd[3] = 'd'; + vfd[4] = 'i'; + vfd[5] = 'n'; + vfd[6] = 'g'; + vfd[7] = ' '; + vfd[8] = '.'; + vfd[9] = '.'; + vfd[10] = '.'; +#endif /* !MODULE */ + + update_vfd(); + + return 0; +} + +static void __exit briq_panel_exit(void) +{ + misc_deregister(&briq_panel_miscdev); + release_region(BRIQ_PANEL_VFD_IOPORT, 4); + release_region(BRIQ_PANEL_LED_IOPORT, 2); +} + +module_init(briq_panel_init); +module_exit(briq_panel_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Karsten Jeppesen "); +MODULE_DESCRIPTION("Driver for the Total Impact briQ front panel"); -- cgit v1.2.3-70-g09d2 From 73ea6959b11821ba5ade77fb1d3d4aed52be3b67 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 4 Jul 2006 17:07:18 +1000 Subject: [POWERPC] More offb/bootx fixes There were still some issues with offb when BootX doesn't provide a proper display node, this fixes them. This also re-instates the palette hacks that were disabled a couple of kernel versions ago when I converted to the new OF parsing, and shuffles some functions around to avoid prototypes. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/powermac/bootx_init.c | 35 ++- drivers/video/offb.c | 307 ++++++++++++++------------- 2 files changed, 185 insertions(+), 157 deletions(-) (limited to 'drivers') diff --git a/arch/powerpc/platforms/powermac/bootx_init.c b/arch/powerpc/platforms/powermac/bootx_init.c index 871b002c9f9..6a026c733f6 100644 --- a/arch/powerpc/platforms/powermac/bootx_init.c +++ b/arch/powerpc/platforms/powermac/bootx_init.c @@ -181,13 +181,18 @@ static void __init bootx_add_chosen_props(unsigned long base, } static void __init bootx_add_display_props(unsigned long base, - unsigned long *mem_end) + unsigned long *mem_end, + int has_real_node) { boot_infos_t *bi = bootx_info; u32 tmp; - bootx_dt_add_prop("linux,boot-display", NULL, 0, mem_end); - bootx_dt_add_prop("linux,opened", NULL, 0, mem_end); + if (has_real_node) { + bootx_dt_add_prop("linux,boot-display", NULL, 0, mem_end); + bootx_dt_add_prop("linux,opened", NULL, 0, mem_end); + } else + bootx_dt_add_prop("linux,bootx-noscreen", NULL, 0, mem_end); + tmp = bi->dispDeviceDepth; bootx_dt_add_prop("linux,bootx-depth", &tmp, 4, mem_end); tmp = bi->dispDeviceRect[2] - bi->dispDeviceRect[0]; @@ -241,11 +246,6 @@ static void __init bootx_scan_dt_build_strings(unsigned long base, DBG(" detected display ! adding properties names !\n"); bootx_dt_add_string("linux,boot-display", mem_end); bootx_dt_add_string("linux,opened", mem_end); - bootx_dt_add_string("linux,bootx-depth", mem_end); - bootx_dt_add_string("linux,bootx-width", mem_end); - bootx_dt_add_string("linux,bootx-height", mem_end); - bootx_dt_add_string("linux,bootx-linebytes", mem_end); - bootx_dt_add_string("linux,bootx-addr", mem_end); strncpy(bootx_disp_path, namep, 255); } @@ -329,10 +329,13 @@ static void __init bootx_scan_dt_build_struct(unsigned long base, ppp = &pp->next; } - if (node == bootx_node_chosen) + if (node == bootx_node_chosen) { bootx_add_chosen_props(base, mem_end); - if (node == bootx_info->dispDeviceRegEntryOffset) - bootx_add_display_props(base, mem_end); + if (bootx_info->dispDeviceRegEntryOffset == 0) + bootx_add_display_props(base, mem_end, 0); + } + else if (node == bootx_info->dispDeviceRegEntryOffset) + bootx_add_display_props(base, mem_end, 1); /* do all our children */ cpp = &np->child; @@ -374,6 +377,14 @@ static unsigned long __init bootx_flatten_dt(unsigned long start) mem_end += 4; bootx_dt_strend = mem_end; bootx_scan_dt_build_strings(base, 4, &mem_end); + /* Add some strings */ + bootx_dt_add_string("linux,bootx-noscreen", &mem_end); + bootx_dt_add_string("linux,bootx-depth", &mem_end); + bootx_dt_add_string("linux,bootx-width", &mem_end); + bootx_dt_add_string("linux,bootx-height", &mem_end); + bootx_dt_add_string("linux,bootx-linebytes", &mem_end); + bootx_dt_add_string("linux,bootx-addr", &mem_end); + /* Wrap up strings */ hdr->off_dt_strings = bootx_dt_strbase - mem_start; hdr->dt_strings_size = bootx_dt_strend - bootx_dt_strbase; @@ -471,6 +482,7 @@ void __init bootx_init(unsigned long r3, unsigned long r4) if (bi->dispDeviceDepth == 16) bi->dispDeviceDepth = 15; + #ifdef CONFIG_BOOTX_TEXT ptr = (unsigned long)bi->logicalDisplayBase; ptr += bi->dispDeviceRect[1] * bi->dispDeviceRowBytes; @@ -508,6 +520,7 @@ void __init bootx_init(unsigned long r3, unsigned long r4) #ifdef CONFIG_BOOTX_TEXT btext_welcome(bi); #endif + /* New BootX enters kernel with MMU off, i/os are not allowed * here. This hack will have been done by the boostrap anyway. */ diff --git a/drivers/video/offb.c b/drivers/video/offb.c index 71ce1fa45cf..faba6722852 100644 --- a/drivers/video/offb.c +++ b/drivers/video/offb.c @@ -63,8 +63,6 @@ struct offb_par default_par; * Interface used by the world */ -int offb_init(void); - static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, u_int transp, struct fb_info *info); static int offb_blank(int blank, struct fb_info *info); @@ -73,11 +71,6 @@ static int offb_blank(int blank, struct fb_info *info); extern boot_infos_t *boot_infos; #endif -static void offb_init_nodriver(struct device_node *); -static void offb_init_fb(const char *name, const char *full_name, - int width, int height, int depth, int pitch, - unsigned long address, struct device_node *dp); - static struct fb_ops offb_ops = { .owner = THIS_MODULE, .fb_setcolreg = offb_setcolreg, @@ -230,123 +223,17 @@ static int offb_blank(int blank, struct fb_info *info) return 0; } - /* - * Initialisation - */ -int __init offb_init(void) +static void __iomem *offb_map_reg(struct device_node *np, int index, + unsigned long offset, unsigned long size) { - struct device_node *dp = NULL, *boot_disp = NULL; - - if (fb_get_options("offb", NULL)) - return -ENODEV; + struct resource r; - for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) { - if (get_property(dp, "linux,opened", NULL) && - get_property(dp, "linux,boot-display", NULL)) { - boot_disp = dp; - offb_init_nodriver(dp); - } - } - for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) { - if (get_property(dp, "linux,opened", NULL) && - dp != boot_disp) - offb_init_nodriver(dp); - } - - return 0; -} - - -static void __init offb_init_nodriver(struct device_node *dp) -{ - unsigned int len; - int i, width = 640, height = 480, depth = 8, pitch = 640; - unsigned int flags, rsize, addr_prop = 0; - unsigned long max_size = 0; - u64 rstart, address = OF_BAD_ADDR; - u32 *pp, *addrp, *up; - u64 asize; - - pp = (u32 *)get_property(dp, "linux,bootx-depth", &len); - if (pp == NULL) - pp = (u32 *)get_property(dp, "depth", &len); - if (pp && len == sizeof(u32)) - depth = *pp; - - pp = (u32 *)get_property(dp, "linux,bootx-width", &len); - if (pp == NULL) - pp = (u32 *)get_property(dp, "width", &len); - if (pp && len == sizeof(u32)) - width = *pp; - - pp = (u32 *)get_property(dp, "linux,bootx-height", &len); - if (pp == NULL) - pp = (u32 *)get_property(dp, "height", &len); - if (pp && len == sizeof(u32)) - height = *pp; - - pp = (u32 *)get_property(dp, "linux,bootx-linebytes", &len); - if (pp == NULL) - pp = (u32 *)get_property(dp, "linebytes", &len); - if (pp && len == sizeof(u32)) - pitch = *pp; - else - pitch = width * ((depth + 7) / 8); - - rsize = (unsigned long)pitch * (unsigned long)height; - - /* Ok, now we try to figure out the address of the framebuffer. - * - * Unfortunately, Open Firmware doesn't provide a standard way to do - * so. All we can do is a dodgy heuristic that happens to work in - * practice. On most machines, the "address" property contains what - * we need, though not on Matrox cards found in IBM machines. What I've - * found that appears to give good results is to go through the PCI - * ranges and pick one that is both big enough and if possible encloses - * the "address" property. If none match, we pick the biggest - */ - up = (u32 *)get_property(dp, "linux,bootx-addr", &len); - if (up == NULL) - up = (u32 *)get_property(dp, "address", &len); - if (up && len == sizeof(u32)) - addr_prop = *up; - - for (i = 0; (addrp = of_get_address(dp, i, &asize, &flags)) - != NULL; i++) { - int match_addrp = 0; - - if (!(flags & IORESOURCE_MEM)) - continue; - if (asize < rsize) - continue; - rstart = of_translate_address(dp, addrp); - if (rstart == OF_BAD_ADDR) - continue; - if (addr_prop && (rstart <= addr_prop) && - ((rstart + asize) >= (addr_prop + rsize))) - match_addrp = 1; - if (match_addrp) { - address = addr_prop; - break; - } - if (rsize > max_size) { - max_size = rsize; - address = OF_BAD_ADDR; - } - - if (address == OF_BAD_ADDR) - address = rstart; - } - if (address == OF_BAD_ADDR && addr_prop) - address = (u64)addr_prop; - if (address != OF_BAD_ADDR) { - /* kludge for valkyrie */ - if (strcmp(dp->name, "valkyrie") == 0) - address += 0x1000; - offb_init_fb(dp->name, dp->full_name, width, height, depth, - pitch, address, dp); - } + if (of_address_to_resource(np, index, &r)) + return 0; + if ((r.start + offset + size) > r.end) + return 0; + return ioremap(r.start + offset, size); } static void __init offb_init_fb(const char *name, const char *full_name, @@ -403,45 +290,39 @@ static void __init offb_init_fb(const char *name, const char *full_name, par->cmap_type = cmap_unknown; if (depth == 8) { - /* Palette hacks disabled for now */ -#if 0 if (dp && !strncmp(name, "ATY,Rage128", 11)) { - unsigned long regbase = dp->addrs[2].address; - par->cmap_adr = ioremap(regbase, 0x1FFF); - par->cmap_type = cmap_r128; + par->cmap_adr = offb_map_reg(dp, 2, 0, 0x1fff); + if (par->cmap_adr) + par->cmap_type = cmap_r128; } else if (dp && (!strncmp(name, "ATY,RageM3pA", 12) || !strncmp(name, "ATY,RageM3p12A", 14))) { - unsigned long regbase = - dp->parent->addrs[2].address; - par->cmap_adr = ioremap(regbase, 0x1FFF); - par->cmap_type = cmap_M3A; + par->cmap_adr = offb_map_reg(dp, 2, 0, 0x1fff); + if (par->cmap_adr) + par->cmap_type = cmap_M3A; } else if (dp && !strncmp(name, "ATY,RageM3pB", 12)) { - unsigned long regbase = - dp->parent->addrs[2].address; - par->cmap_adr = ioremap(regbase, 0x1FFF); - par->cmap_type = cmap_M3B; + par->cmap_adr = offb_map_reg(dp, 2, 0, 0x1fff); + if (par->cmap_adr) + par->cmap_type = cmap_M3B; } else if (dp && !strncmp(name, "ATY,Rage6", 9)) { - unsigned long regbase = dp->addrs[1].address; - par->cmap_adr = ioremap(regbase, 0x1FFF); - par->cmap_type = cmap_radeon; + par->cmap_adr = offb_map_reg(dp, 1, 0, 0x1fff); + if (par->cmap_adr) + par->cmap_type = cmap_radeon; } else if (!strncmp(name, "ATY,", 4)) { unsigned long base = address & 0xff000000UL; par->cmap_adr = ioremap(base + 0x7ff000, 0x1000) + 0xcc0; par->cmap_data = par->cmap_adr + 1; par->cmap_type = cmap_m64; - } else if (device_is_compatible(dp, "pci1014,b7")) { - unsigned long regbase = dp->addrs[0].address; - par->cmap_adr = ioremap(regbase + 0x6000, 0x1000); - par->cmap_type = cmap_gxt2000; + } else if (dp && device_is_compatible(dp, "pci1014,b7")) { + par->cmap_adr = offb_map_reg(dp, 0, 0x6000, 0x1000); + if (par->cmap_adr) + par->cmap_type = cmap_gxt2000; } -#endif - fix->visual = par->cmap_adr ? FB_VISUAL_PSEUDOCOLOR - : FB_VISUAL_STATIC_PSEUDOCOLOR; + fix->visual = (par->cmap_type != cmap_unknown) ? + FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_STATIC_PSEUDOCOLOR; } else - fix->visual = /* par->cmap_adr ? FB_VISUAL_DIRECTCOLOR - : */ FB_VISUAL_TRUECOLOR; + fix->visual = FB_VISUAL_TRUECOLOR; var->xoffset = var->yoffset = 0; switch (depth) { @@ -521,5 +402,139 @@ static void __init offb_init_fb(const char *name, const char *full_name, info->node, full_name); } + +static void __init offb_init_nodriver(struct device_node *dp, int no_real_node) +{ + unsigned int len; + int i, width = 640, height = 480, depth = 8, pitch = 640; + unsigned int flags, rsize, addr_prop = 0; + unsigned long max_size = 0; + u64 rstart, address = OF_BAD_ADDR; + u32 *pp, *addrp, *up; + u64 asize; + + pp = (u32 *)get_property(dp, "linux,bootx-depth", &len); + if (pp == NULL) + pp = (u32 *)get_property(dp, "depth", &len); + if (pp && len == sizeof(u32)) + depth = *pp; + + pp = (u32 *)get_property(dp, "linux,bootx-width", &len); + if (pp == NULL) + pp = (u32 *)get_property(dp, "width", &len); + if (pp && len == sizeof(u32)) + width = *pp; + + pp = (u32 *)get_property(dp, "linux,bootx-height", &len); + if (pp == NULL) + pp = (u32 *)get_property(dp, "height", &len); + if (pp && len == sizeof(u32)) + height = *pp; + + pp = (u32 *)get_property(dp, "linux,bootx-linebytes", &len); + if (pp == NULL) + pp = (u32 *)get_property(dp, "linebytes", &len); + if (pp && len == sizeof(u32)) + pitch = *pp; + else + pitch = width * ((depth + 7) / 8); + + rsize = (unsigned long)pitch * (unsigned long)height; + + /* Ok, now we try to figure out the address of the framebuffer. + * + * Unfortunately, Open Firmware doesn't provide a standard way to do + * so. All we can do is a dodgy heuristic that happens to work in + * practice. On most machines, the "address" property contains what + * we need, though not on Matrox cards found in IBM machines. What I've + * found that appears to give good results is to go through the PCI + * ranges and pick one that is both big enough and if possible encloses + * the "address" property. If none match, we pick the biggest + */ + up = (u32 *)get_property(dp, "linux,bootx-addr", &len); + if (up == NULL) + up = (u32 *)get_property(dp, "address", &len); + if (up && len == sizeof(u32)) + addr_prop = *up; + + /* Hack for when BootX is passing us */ + if (no_real_node) + goto skip_addr; + + for (i = 0; (addrp = of_get_address(dp, i, &asize, &flags)) + != NULL; i++) { + int match_addrp = 0; + + if (!(flags & IORESOURCE_MEM)) + continue; + if (asize < rsize) + continue; + rstart = of_translate_address(dp, addrp); + if (rstart == OF_BAD_ADDR) + continue; + if (addr_prop && (rstart <= addr_prop) && + ((rstart + asize) >= (addr_prop + rsize))) + match_addrp = 1; + if (match_addrp) { + address = addr_prop; + break; + } + if (rsize > max_size) { + max_size = rsize; + address = OF_BAD_ADDR; + } + + if (address == OF_BAD_ADDR) + address = rstart; + } + skip_addr: + if (address == OF_BAD_ADDR && addr_prop) + address = (u64)addr_prop; + if (address != OF_BAD_ADDR) { + /* kludge for valkyrie */ + if (strcmp(dp->name, "valkyrie") == 0) + address += 0x1000; + offb_init_fb(no_real_node ? "bootx" : dp->name, + no_real_node ? "display" : dp->full_name, + width, height, depth, pitch, address, + no_real_node ? dp : NULL); + } +} + +static int __init offb_init(void) +{ + struct device_node *dp = NULL, *boot_disp = NULL; + + if (fb_get_options("offb", NULL)) + return -ENODEV; + + /* Check if we have a MacOS display without a node spec */ + if (get_property(of_chosen, "linux,bootx-noscreen", NULL) != NULL) { + /* The old code tried to work out which node was the MacOS + * display based on the address. I'm dropping that since the + * lack of a node spec only happens with old BootX versions + * (users can update) and with this code, they'll still get + * a display (just not the palette hacks). + */ + offb_init_nodriver(of_chosen, 1); + } + + for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) { + if (get_property(dp, "linux,opened", NULL) && + get_property(dp, "linux,boot-display", NULL)) { + boot_disp = dp; + offb_init_nodriver(dp, 0); + } + } + for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) { + if (get_property(dp, "linux,opened", NULL) && + dp != boot_disp) + offb_init_nodriver(dp, 0); + } + + return 0; +} + + module_init(offb_init); MODULE_LICENSE("GPL"); -- cgit v1.2.3-70-g09d2 From 861fa7737db889ae1701ba58c083d4a7bd8705d3 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 6 Jul 2006 18:03:06 +1000 Subject: [POWERPC] Xserve G5 thermal control fixes The thermal control for the Xserve G5s had a few issues. For one, the way to program the RPM fans speeds into the FCU is different between it and the desktop models, which I didn't figure out until recently, and it was missing a control loop for the slots fan, running it too fast. Both of those problems were causing the machine to be much more noisy than necessary. This patch also changes the fixed value of the slots fan for desktop G5s to 40% instead of 50%. It seems to still have a pretty good airflow that way and is much less noisy. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- drivers/macintosh/therm_pm72.c | 218 ++++++++++++++++++++++++++++++++++++++--- drivers/macintosh/therm_pm72.h | 33 ++++++- 2 files changed, 234 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c index c1fe0b368f7..20bf67244e2 100644 --- a/drivers/macintosh/therm_pm72.c +++ b/drivers/macintosh/therm_pm72.c @@ -95,6 +95,17 @@ * - Use min/max macros here or there * - Latest darwin updated U3H min fan speed to 20% PWM * + * July. 06, 2006 : 1.3 + * - Fix setting of RPM fans on Xserve G5 (they were going too fast) + * - Add missing slots fan control loop for Xserve G5 + * - Lower fixed slots fan speed from 50% to 40% on desktop G5s. We + * still can't properly implement the control loop for these, so let's + * reduce the noise a little bit, it appears that 40% still gives us + * a pretty good air flow + * - Add code to "tickle" the FCU regulary so it doesn't think that + * we are gone while in fact, the machine just didn't need any fan + * speed change lately + * */ #include @@ -121,7 +132,7 @@ #include "therm_pm72.h" -#define VERSION "1.2b2" +#define VERSION "1.3" #undef DEBUG @@ -146,6 +157,7 @@ static struct basckside_pid_params backside_params; static struct backside_pid_state backside_state; static struct drives_pid_state drives_state; static struct dimm_pid_state dimms_state; +static struct slots_pid_state slots_state; static int state; static int cpu_count; static int cpu_pid_type; @@ -154,7 +166,8 @@ static struct completion ctrl_complete; static int critical_state; static int rackmac; static s32 dimm_output_clamp; - +static int fcu_rpm_shift; +static int fcu_tickle_ticks; static DECLARE_MUTEX(driver_lock); /* @@ -495,13 +508,20 @@ static int start_fcu(void) rc = fan_write_reg(0x2e, &buf, 1); if (rc < 0) return -EIO; + rc = fan_read_reg(0, &buf, 1); + if (rc < 0) + return -EIO; + fcu_rpm_shift = (buf == 1) ? 2 : 3; + printk(KERN_DEBUG "FCU Initialized, RPM fan shift is %d\n", + fcu_rpm_shift); + return 0; } static int set_rpm_fan(int fan_index, int rpm) { unsigned char buf[2]; - int rc, id; + int rc, id, min, max; if (fcu_fans[fan_index].type != FCU_FAN_RPM) return -EINVAL; @@ -509,12 +529,15 @@ static int set_rpm_fan(int fan_index, int rpm) if (id == FCU_FAN_ABSENT_ID) return -EINVAL; - if (rpm < 300) - rpm = 300; - else if (rpm > 8191) - rpm = 8191; - buf[0] = rpm >> 5; - buf[1] = rpm << 3; + min = 2400 >> fcu_rpm_shift; + max = 56000 >> fcu_rpm_shift; + + if (rpm < min) + rpm = min; + else if (rpm > max) + rpm = max; + buf[0] = rpm >> (8 - fcu_rpm_shift); + buf[1] = rpm << fcu_rpm_shift; rc = fan_write_reg(0x10 + (id * 2), buf, 2); if (rc < 0) return -EIO; @@ -551,7 +574,7 @@ static int get_rpm_fan(int fan_index, int programmed) if (rc != 2) return -EIO; - return (buf[0] << 5) | buf[1] >> 3; + return (buf[0] << (8 - fcu_rpm_shift)) | buf[1] >> fcu_rpm_shift; } static int set_pwm_fan(int fan_index, int pwm) @@ -609,6 +632,26 @@ static int get_pwm_fan(int fan_index) return (buf[0] * 1000) / 2559; } +static void tickle_fcu(void) +{ + int pwm; + + pwm = get_pwm_fan(SLOTS_FAN_PWM_INDEX); + + DBG("FCU Tickle, slots fan is: %d\n", pwm); + if (pwm < 0) + pwm = 100; + + if (!rackmac) { + pwm = SLOTS_FAN_DEFAULT_PWM; + } else if (pwm < SLOTS_PID_OUTPUT_MIN) + pwm = SLOTS_PID_OUTPUT_MIN; + + /* That is hopefully enough to make the FCU happy */ + set_pwm_fan(SLOTS_FAN_PWM_INDEX, pwm); +} + + /* * Utility routine to read the CPU calibration EEPROM data * from the device-tree @@ -715,6 +758,9 @@ BUILD_SHOW_FUNC_INT(backside_fan_pwm, backside_state.pwm) BUILD_SHOW_FUNC_FIX(drives_temperature, drives_state.last_temp) BUILD_SHOW_FUNC_INT(drives_fan_rpm, drives_state.rpm) +BUILD_SHOW_FUNC_FIX(slots_temperature, slots_state.last_temp) +BUILD_SHOW_FUNC_INT(slots_fan_pwm, slots_state.pwm) + BUILD_SHOW_FUNC_FIX(dimms_temperature, dimms_state.last_temp) static DEVICE_ATTR(cpu0_temperature,S_IRUGO,show_cpu0_temperature,NULL); @@ -735,6 +781,9 @@ static DEVICE_ATTR(backside_fan_pwm,S_IRUGO,show_backside_fan_pwm,NULL); static DEVICE_ATTR(drives_temperature,S_IRUGO,show_drives_temperature,NULL); static DEVICE_ATTR(drives_fan_rpm,S_IRUGO,show_drives_fan_rpm,NULL); +static DEVICE_ATTR(slots_temperature,S_IRUGO,show_slots_temperature,NULL); +static DEVICE_ATTR(slots_fan_pwm,S_IRUGO,show_slots_fan_pwm,NULL); + static DEVICE_ATTR(dimms_temperature,S_IRUGO,show_dimms_temperature,NULL); /* @@ -1076,6 +1125,9 @@ static void do_monitor_cpu_rack(struct cpu_pid_state *state) fan_min = dimm_output_clamp; fan_min = max(fan_min, (int)state->mpu.rminn_intake_fan); + DBG(" CPU min mpu = %d, min dimm = %d\n", + state->mpu.rminn_intake_fan, dimm_output_clamp); + state->rpm = max(state->rpm, (int)fan_min); state->rpm = min(state->rpm, (int)state->mpu.rmaxn_intake_fan); state->intake_rpm = state->rpm; @@ -1374,7 +1426,8 @@ static void do_monitor_drives(struct drives_pid_state *state) DBG(" current rpm: %d\n", state->rpm); /* Get some sensor readings */ - temp = le16_to_cpu(i2c_smbus_read_word_data(state->monitor, DS1775_TEMP)) << 8; + temp = le16_to_cpu(i2c_smbus_read_word_data(state->monitor, + DS1775_TEMP)) << 8; state->last_temp = temp; DBG(" temp: %d.%03d, target: %d.%03d\n", FIX32TOPRINT(temp), FIX32TOPRINT(DRIVES_PID_INPUT_TARGET)); @@ -1575,7 +1628,7 @@ static int init_dimms_state(struct dimm_pid_state *state) } /* - * Dispose of the state data for the drives control loop + * Dispose of the state data for the DIMM control loop */ static void dispose_dimms_state(struct dimm_pid_state *state) { @@ -1588,6 +1641,127 @@ static void dispose_dimms_state(struct dimm_pid_state *state) state->monitor = NULL; } +/* + * Slots fan control loop + */ +static void do_monitor_slots(struct slots_pid_state *state) +{ + s32 temp, integral, derivative; + s64 integ_p, deriv_p, prop_p, sum; + int i, rc; + + if (--state->ticks != 0) + return; + state->ticks = SLOTS_PID_INTERVAL; + + DBG("slots:\n"); + + /* Check fan status */ + rc = get_pwm_fan(SLOTS_FAN_PWM_INDEX); + if (rc < 0) { + printk(KERN_WARNING "Error %d reading slots fan !\n", rc); + /* XXX What do we do now ? */ + } else + state->pwm = rc; + DBG(" current pwm: %d\n", state->pwm); + + /* Get some sensor readings */ + temp = le16_to_cpu(i2c_smbus_read_word_data(state->monitor, + DS1775_TEMP)) << 8; + state->last_temp = temp; + DBG(" temp: %d.%03d, target: %d.%03d\n", FIX32TOPRINT(temp), + FIX32TOPRINT(SLOTS_PID_INPUT_TARGET)); + + /* Store temperature and error in history array */ + state->cur_sample = (state->cur_sample + 1) % SLOTS_PID_HISTORY_SIZE; + state->sample_history[state->cur_sample] = temp; + state->error_history[state->cur_sample] = temp - SLOTS_PID_INPUT_TARGET; + + /* If first loop, fill the history table */ + if (state->first) { + for (i = 0; i < (SLOTS_PID_HISTORY_SIZE - 1); i++) { + state->cur_sample = (state->cur_sample + 1) % + SLOTS_PID_HISTORY_SIZE; + state->sample_history[state->cur_sample] = temp; + state->error_history[state->cur_sample] = + temp - SLOTS_PID_INPUT_TARGET; + } + state->first = 0; + } + + /* Calculate the integral term */ + sum = 0; + integral = 0; + for (i = 0; i < SLOTS_PID_HISTORY_SIZE; i++) + integral += state->error_history[i]; + integral *= SLOTS_PID_INTERVAL; + DBG(" integral: %08x\n", integral); + integ_p = ((s64)SLOTS_PID_G_r) * (s64)integral; + DBG(" integ_p: %d\n", (int)(integ_p >> 36)); + sum += integ_p; + + /* Calculate the derivative term */ + derivative = state->error_history[state->cur_sample] - + state->error_history[(state->cur_sample + SLOTS_PID_HISTORY_SIZE - 1) + % SLOTS_PID_HISTORY_SIZE]; + derivative /= SLOTS_PID_INTERVAL; + deriv_p = ((s64)SLOTS_PID_G_d) * (s64)derivative; + DBG(" deriv_p: %d\n", (int)(deriv_p >> 36)); + sum += deriv_p; + + /* Calculate the proportional term */ + prop_p = ((s64)SLOTS_PID_G_p) * (s64)(state->error_history[state->cur_sample]); + DBG(" prop_p: %d\n", (int)(prop_p >> 36)); + sum += prop_p; + + /* Scale sum */ + sum >>= 36; + + DBG(" sum: %d\n", (int)sum); + state->pwm = (s32)sum; + + state->pwm = max(state->pwm, SLOTS_PID_OUTPUT_MIN); + state->pwm = min(state->pwm, SLOTS_PID_OUTPUT_MAX); + + DBG("** DRIVES PWM: %d\n", (int)state->pwm); + set_pwm_fan(SLOTS_FAN_PWM_INDEX, state->pwm); +} + +/* + * Initialize the state structure for the slots bay fan control loop + */ +static int init_slots_state(struct slots_pid_state *state) +{ + state->ticks = 1; + state->first = 1; + state->pwm = 50; + + state->monitor = attach_i2c_chip(XSERVE_SLOTS_LM75, "slots_temp"); + if (state->monitor == NULL) + return -ENODEV; + + device_create_file(&of_dev->dev, &dev_attr_slots_temperature); + device_create_file(&of_dev->dev, &dev_attr_slots_fan_pwm); + + return 0; +} + +/* + * Dispose of the state data for the slots control loop + */ +static void dispose_slots_state(struct slots_pid_state *state) +{ + if (state->monitor == NULL) + return; + + device_remove_file(&of_dev->dev, &dev_attr_slots_temperature); + device_remove_file(&of_dev->dev, &dev_attr_slots_fan_pwm); + + detach_i2c_chip(state->monitor); + state->monitor = NULL; +} + + static int call_critical_overtemp(void) { char *argv[] = { critical_overtemp_path, NULL }; @@ -1617,14 +1791,17 @@ static int main_control_loop(void *x) goto out; } - /* Set the PCI fan once for now */ - set_pwm_fan(SLOTS_FAN_PWM_INDEX, SLOTS_FAN_DEFAULT_PWM); + /* Set the PCI fan once for now on non-RackMac */ + if (!rackmac) + set_pwm_fan(SLOTS_FAN_PWM_INDEX, SLOTS_FAN_DEFAULT_PWM); /* Initialize ADCs */ initialize_adc(&cpu_state[0]); if (cpu_state[1].monitor != NULL) initialize_adc(&cpu_state[1]); + fcu_tickle_ticks = FCU_TICKLE_TICKS; + up(&driver_lock); while (state == state_attached) { @@ -1634,6 +1811,12 @@ static int main_control_loop(void *x) down(&driver_lock); + /* Tickle the FCU just in case */ + if (--fcu_tickle_ticks < 0) { + fcu_tickle_ticks = FCU_TICKLE_TICKS; + tickle_fcu(); + } + /* First, we always calculate the new DIMMs state on an Xserve */ if (rackmac) do_monitor_dimms(&dimms_state); @@ -1654,7 +1837,9 @@ static int main_control_loop(void *x) } /* Then, the rest */ do_monitor_backside(&backside_state); - if (!rackmac) + if (rackmac) + do_monitor_slots(&slots_state); + else do_monitor_drives(&drives_state); up(&driver_lock); @@ -1696,6 +1881,7 @@ static void dispose_control_loops(void) dispose_cpu_state(&cpu_state[1]); dispose_backside_state(&backside_state); dispose_drives_state(&drives_state); + dispose_slots_state(&slots_state); dispose_dimms_state(&dimms_state); } @@ -1745,6 +1931,8 @@ static int create_control_loops(void) goto fail; if (rackmac && init_dimms_state(&dimms_state)) goto fail; + if (rackmac && init_slots_state(&slots_state)) + goto fail; if (!rackmac && init_drives_state(&drives_state)) goto fail; diff --git a/drivers/macintosh/therm_pm72.h b/drivers/macintosh/therm_pm72.h index fc7e9b7ecaf..393cc9df94e 100644 --- a/drivers/macintosh/therm_pm72.h +++ b/drivers/macintosh/therm_pm72.h @@ -105,6 +105,7 @@ static char * critical_overtemp_path = "/sbin/critical_overtemp"; #define DRIVES_DALLAS_ID 0x94 #define BACKSIDE_MAX_ID 0x98 #define XSERVE_DIMMS_LM87 0x25a +#define XSERVE_SLOTS_LM75 0x290 /* * Some MAX6690, DS1775, LM87 register definitions @@ -198,7 +199,7 @@ struct drives_pid_state #define SLOTS_FAN_PWM_DEFAULT_ID 2 #define SLOTS_FAN_PWM_INDEX 2 -#define SLOTS_FAN_DEFAULT_PWM 50 /* Do better here ! */ +#define SLOTS_FAN_DEFAULT_PWM 40 /* Do better here ! */ /* @@ -206,7 +207,7 @@ struct drives_pid_state */ #define DIMM_PID_G_d 0 #define DIMM_PID_G_p 0 -#define DIMM_PID_G_r 0x6553600 +#define DIMM_PID_G_r 0x06553600 #define DIMM_PID_INPUT_TARGET 3276800 #define DIMM_PID_INTERVAL 1 #define DIMM_PID_OUTPUT_MAX 14000 @@ -226,6 +227,31 @@ struct dimm_pid_state }; +/* + * PID factors for the Xserve Slots control loop + */ +#define SLOTS_PID_G_d 0 +#define SLOTS_PID_G_p 0 +#define SLOTS_PID_G_r 0x00100000 +#define SLOTS_PID_INPUT_TARGET 3200000 +#define SLOTS_PID_INTERVAL 1 +#define SLOTS_PID_OUTPUT_MAX 100 +#define SLOTS_PID_OUTPUT_MIN 20 +#define SLOTS_PID_HISTORY_SIZE 20 + +struct slots_pid_state +{ + int ticks; + struct i2c_client * monitor; + s32 sample_history[SLOTS_PID_HISTORY_SIZE]; + s32 error_history[SLOTS_PID_HISTORY_SIZE]; + int cur_sample; + s32 last_temp; + int first; + int pwm; +}; + + /* Desktops */ @@ -283,6 +309,9 @@ struct cpu_pid_state s32 pump_max; }; +/* Tickle FCU every 10 seconds */ +#define FCU_TICKLE_TICKS 10 + /* * Driver state */ -- cgit v1.2.3-70-g09d2 From 8b0036eefd7a96f23244b969417684c8627f5ad6 Mon Sep 17 00:00:00 2001 From: Vitaly Wool Date: Tue, 11 Jul 2006 09:11:25 +0200 Subject: [MTD] NAND: OOB buffer offset fixups In the case of data-pad-ecc-pad-data... layout the oob start position has to be sizeof(data) in nand_write_oob_syndrom(). In nand_fill_oob() we need to copy to buf + buffer offset instead of buf + write offset. From: Vitaly Wool Signed-off-by: Thomas Gleixner --- drivers/mtd/nand/nand_base.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 62b861304e0..cffd66309ff 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1203,7 +1203,7 @@ static int nand_write_oob_syndrome(struct mtd_info *mtd, pos = steps * (eccsize + chunk); steps = 0; } else - pos = eccsize + chunk; + pos = eccsize; chip->cmdfunc(mtd, NAND_CMD_SEQIN, pos, page); for (i = 0; i < steps; i++) { @@ -1566,7 +1566,7 @@ static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob, bytes = min_t(size_t, len, free->length); boffs = free->offset; } - memcpy(chip->oob_poi + woffs, oob, bytes); + memcpy(chip->oob_poi + boffs, oob, bytes); oob += bytes; } return oob; -- cgit v1.2.3-70-g09d2 From 8bff05b052db7a4cfaaf0eee7f8145600548e9c9 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Thu, 13 Jul 2006 18:51:22 +1000 Subject: [POWERPC] iseries: A new iSeries console This driver uses the hvc_console.c infrastructure that is used by the pSeries virtual and RTAS consoles. This will allow us to make viocons.c obsolete and is another step along the way to a combined kernel (as viocons could not coexist with CONFIG_VT). Signed-off-by: Stephen Rothwell --- arch/powerpc/platforms/iseries/Kconfig | 8 +- arch/powerpc/platforms/iseries/dt.c | 3 +- drivers/char/Kconfig | 7 + drivers/char/Makefile | 1 + drivers/char/hvc_iseries.c | 593 +++++++++++++++++++++++++++++++++ drivers/char/viocons.c | 31 +- include/asm-powerpc/iseries/vio.h | 28 ++ 7 files changed, 638 insertions(+), 33 deletions(-) create mode 100644 drivers/char/hvc_iseries.c (limited to 'drivers') diff --git a/arch/powerpc/platforms/iseries/Kconfig b/arch/powerpc/platforms/iseries/Kconfig index 3d957a30c8c..887b68804e6 100644 --- a/arch/powerpc/platforms/iseries/Kconfig +++ b/arch/powerpc/platforms/iseries/Kconfig @@ -3,13 +3,17 @@ menu "iSeries device drivers" depends on PPC_ISERIES config VIOCONS - tristate "iSeries Virtual Console Support" + tristate "iSeries Virtual Console Support (Obsolete)" + help + This is the old virtual console driver for legacy iSeries. + You should use the iSeries Hypervisor Virtual Console + support instead. config VIODASD tristate "iSeries Virtual I/O disk support" help If you are running on an iSeries system and you want to use - virtual disks created and managed by OS/400, say Y. + virtual disks created and managed by OS/400, say Y. config VIOCD tristate "iSeries Virtual I/O CD support" diff --git a/arch/powerpc/platforms/iseries/dt.c b/arch/powerpc/platforms/iseries/dt.c index d194140c1eb..894b534669d 100644 --- a/arch/powerpc/platforms/iseries/dt.c +++ b/arch/powerpc/platforms/iseries/dt.c @@ -298,7 +298,8 @@ static void __init dt_vdevices(struct iseries_flat_dt *dt) dt_prop_u32(dt, "#address-cells", 1); dt_prop_u32(dt, "#size-cells", 0); - dt_do_vdevice(dt, "vty", reg, -1, device_type_serial, NULL, 1); + dt_do_vdevice(dt, "vty", reg, -1, device_type_serial, + "IBM,iSeries-vty", 1); reg++; dt_do_vdevice(dt, "v-scsi", reg, -1, device_type_vscsi, diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 11de59ff422..a7ef542afbc 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -610,6 +610,13 @@ config HVC_CONSOLE console. This driver allows each pSeries partition to have a console which is accessed via the HMC. +config HVC_ISERIES + bool "iSeries Hypervisor Virtual Console support" + depends on PPC_ISERIES && !VIOCONS + select HVC_DRIVER + help + iSeries machines support a hypervisor virtual console. + config HVC_RTAS bool "IBM RTAS Console support" depends on PPC_RTAS diff --git a/drivers/char/Makefile b/drivers/char/Makefile index 7a7ee572127..8c6dfc62152 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -42,6 +42,7 @@ obj-$(CONFIG_AMIGA_BUILTIN_SERIAL) += amiserial.o obj-$(CONFIG_SX) += sx.o generic_serial.o obj-$(CONFIG_RIO) += rio/ generic_serial.o obj-$(CONFIG_HVC_CONSOLE) += hvc_vio.o hvsi.o +obj-$(CONFIG_HVC_ISERIES) += hvc_iseries.o obj-$(CONFIG_HVC_RTAS) += hvc_rtas.o obj-$(CONFIG_HVC_DRIVER) += hvc_console.o obj-$(CONFIG_RAW_DRIVER) += raw.o diff --git a/drivers/char/hvc_iseries.c b/drivers/char/hvc_iseries.c new file mode 100644 index 00000000000..256afc8e583 --- /dev/null +++ b/drivers/char/hvc_iseries.c @@ -0,0 +1,593 @@ +/* + * iSeries vio driver interface to hvc_console.c + * + * This code is based heavily on hvc_vio.c and viocons.c + * + * Copyright (C) 2006 Stephen Rothwell, IBM Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "hvc_console.h" + +#define VTTY_PORTS 10 + +static DEFINE_SPINLOCK(consolelock); +static DEFINE_SPINLOCK(consoleloglock); + +static const char hvc_driver_name[] = "hvc_console"; + +#define IN_BUF_SIZE 200 + +/* + * Our port information. + */ +static struct port_info { + HvLpIndex lp; + u64 seq; /* sequence number of last HV send */ + u64 ack; /* last ack from HV */ + struct hvc_struct *hp; + int in_start; + int in_end; + unsigned char in_buf[IN_BUF_SIZE]; +} port_info[VTTY_PORTS] = { + [ 0 ... VTTY_PORTS - 1 ] = { + .lp = HvLpIndexInvalid + } +}; + +#define viochar_is_console(pi) ((pi) == &port_info[0]) + +static struct vio_device_id hvc_driver_table[] __devinitdata = { + {"serial", "IBM,iSeries-vty"}, + { "", "" } +}; +MODULE_DEVICE_TABLE(vio, hvc_driver_table); + +static void hvlog(char *fmt, ...) +{ + int i; + unsigned long flags; + va_list args; + static char buf[256]; + + spin_lock_irqsave(&consoleloglock, flags); + va_start(args, fmt); + i = vscnprintf(buf, sizeof(buf) - 1, fmt, args); + va_end(args); + buf[i++] = '\r'; + HvCall_writeLogBuffer(buf, i); + spin_unlock_irqrestore(&consoleloglock, flags); +} + +/* + * Initialize the common fields in a charLpEvent + */ +static void init_data_event(struct viocharlpevent *viochar, HvLpIndex lp) +{ + struct HvLpEvent *hev = &viochar->event; + + memset(viochar, 0, sizeof(struct viocharlpevent)); + + hev->flags = HV_LP_EVENT_VALID | HV_LP_EVENT_DEFERRED_ACK | + HV_LP_EVENT_INT; + hev->xType = HvLpEvent_Type_VirtualIo; + hev->xSubtype = viomajorsubtype_chario | viochardata; + hev->xSourceLp = HvLpConfig_getLpIndex(); + hev->xTargetLp = lp; + hev->xSizeMinus1 = sizeof(struct viocharlpevent); + hev->xSourceInstanceId = viopath_sourceinst(lp); + hev->xTargetInstanceId = viopath_targetinst(lp); +} + +static int get_chars(uint32_t vtermno, char *buf, int count) +{ + struct port_info *pi; + int n = 0; + unsigned long flags; + + if (vtermno >= VTTY_PORTS) + return -EINVAL; + if (count == 0) + return 0; + + pi = &port_info[vtermno]; + spin_lock_irqsave(&consolelock, flags); + + if (pi->in_end == 0) + goto done; + + n = pi->in_end - pi->in_start; + if (n > count) + n = count; + memcpy(buf, &pi->in_buf[pi->in_start], n); + pi->in_start += n; + if (pi->in_start == pi->in_end) { + pi->in_start = 0; + pi->in_end = 0; + } +done: + spin_unlock_irqrestore(&consolelock, flags); + return n; +} + +static int put_chars(uint32_t vtermno, const char *buf, int count) +{ + struct viocharlpevent *viochar; + struct port_info *pi; + HvLpEvent_Rc hvrc; + unsigned long flags; + int sent = 0; + + if (vtermno >= VTTY_PORTS) + return -EINVAL; + + pi = &port_info[vtermno]; + + spin_lock_irqsave(&consolelock, flags); + + if (viochar_is_console(pi) && !viopath_isactive(pi->lp)) { + spin_lock_irqsave(&consoleloglock, flags); + HvCall_writeLogBuffer(buf, count); + spin_unlock_irqrestore(&consoleloglock, flags); + sent = count; + goto done; + } + + viochar = vio_get_event_buffer(viomajorsubtype_chario); + if (viochar == NULL) { + hvlog("\n\rviocons: Can't get viochar buffer."); + goto done; + } + + while ((count > 0) && ((pi->seq - pi->ack) < VIOCHAR_WINDOW)) { + int len; + + len = (count > VIOCHAR_MAX_DATA) ? VIOCHAR_MAX_DATA : count; + + if (viochar_is_console(pi)) { + spin_lock_irqsave(&consoleloglock, flags); + HvCall_writeLogBuffer(buf, len); + spin_unlock_irqrestore(&consoleloglock, flags); + } + + init_data_event(viochar, pi->lp); + + viochar->len = len; + viochar->event.xCorrelationToken = pi->seq++; + viochar->event.xSizeMinus1 = + offsetof(struct viocharlpevent, data) + len; + + memcpy(viochar->data, buf, len); + + hvrc = HvCallEvent_signalLpEvent(&viochar->event); + if (hvrc) + hvlog("\n\rerror sending event! return code %d\n\r", + (int)hvrc); + sent += len; + count -= len; + buf += len; + } + + vio_free_event_buffer(viomajorsubtype_chario, viochar); +done: + spin_unlock_irqrestore(&consolelock, flags); + return sent; +} + +static struct hv_ops hvc_get_put_ops = { + .get_chars = get_chars, + .put_chars = put_chars, +}; + +static int __devinit hvc_vio_probe(struct vio_dev *vdev, + const struct vio_device_id *id) +{ + struct hvc_struct *hp; + struct port_info *pi; + + /* probed with invalid parameters. */ + if (!vdev || !id) + return -EPERM; + + if (vdev->unit_address >= VTTY_PORTS) + return -ENODEV; + + pi = &port_info[vdev->unit_address]; + + hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops); + if (IS_ERR(hp)) + return PTR_ERR(hp); + pi->hp = hp; + dev_set_drvdata(&vdev->dev, pi); + + return 0; +} + +static int __devexit hvc_vio_remove(struct vio_dev *vdev) +{ + struct port_info *pi = dev_get_drvdata(&vdev->dev); + struct hvc_struct *hp = pi->hp; + + return hvc_remove(hp); +} + +static struct vio_driver hvc_vio_driver = { + .id_table = hvc_driver_table, + .probe = hvc_vio_probe, + .remove = hvc_vio_remove, + .driver = { + .name = hvc_driver_name, + .owner = THIS_MODULE, + } +}; + +static void hvc_open_event(struct HvLpEvent *event) +{ + unsigned long flags; + struct viocharlpevent *cevent = (struct viocharlpevent *)event; + u8 port = cevent->virtual_device; + struct port_info *pi; + int reject = 0; + + if (hvlpevent_is_ack(event)) { + if (port >= VTTY_PORTS) + return; + + spin_lock_irqsave(&consolelock, flags); + + pi = &port_info[port]; + if (event->xRc == HvLpEvent_Rc_Good) { + pi->seq = pi->ack = 0; + /* + * This line allows connections from the primary + * partition but once one is connected from the + * primary partition nothing short of a reboot + * of linux will allow access from the hosting + * partition again without a required iSeries fix. + */ + pi->lp = event->xTargetLp; + } + + spin_unlock_irqrestore(&consolelock, flags); + if (event->xRc != HvLpEvent_Rc_Good) + printk(KERN_WARNING + "hvc: handle_open_event: event->xRc == (%d).\n", + event->xRc); + + if (event->xCorrelationToken != 0) { + atomic_t *aptr= (atomic_t *)event->xCorrelationToken; + atomic_set(aptr, 1); + } else + printk(KERN_WARNING + "hvc: weird...got open ack without atomic\n"); + return; + } + + /* This had better require an ack, otherwise complain */ + if (!hvlpevent_need_ack(event)) { + printk(KERN_WARNING "hvc: viocharopen without ack bit!\n"); + return; + } + + spin_lock_irqsave(&consolelock, flags); + + /* Make sure this is a good virtual tty */ + if (port >= VTTY_PORTS) { + event->xRc = HvLpEvent_Rc_SubtypeError; + cevent->subtype_result_code = viorc_openRejected; + /* + * Flag state here since we can't printk while holding + * the consolelock spinlock. + */ + reject = 1; + } else { + pi = &port_info[port]; + if ((pi->lp != HvLpIndexInvalid) && + (pi->lp != event->xSourceLp)) { + /* + * If this is tty is already connected to a different + * partition, fail. + */ + event->xRc = HvLpEvent_Rc_SubtypeError; + cevent->subtype_result_code = viorc_openRejected; + reject = 2; + } else { + pi->lp = event->xSourceLp; + event->xRc = HvLpEvent_Rc_Good; + cevent->subtype_result_code = viorc_good; + pi->seq = pi->ack = 0; + } + } + + spin_unlock_irqrestore(&consolelock, flags); + + if (reject == 1) + printk(KERN_WARNING "hvc: open rejected: bad virtual tty.\n"); + else if (reject == 2) + printk(KERN_WARNING "hvc: open rejected: console in exclusive " + "use by another partition.\n"); + + /* Return the acknowledgement */ + HvCallEvent_ackLpEvent(event); +} + +/* + * Handle a close charLpEvent. This should ONLY be an Interrupt because the + * virtual console should never actually issue a close event to the hypervisor + * because the virtual console never goes away. A close event coming from the + * hypervisor simply means that there are no client consoles connected to the + * virtual console. + */ +static void hvc_close_event(struct HvLpEvent *event) +{ + unsigned long flags; + struct viocharlpevent *cevent = (struct viocharlpevent *)event; + u8 port = cevent->virtual_device; + + if (!hvlpevent_is_int(event)) { + printk(KERN_WARNING + "hvc: got unexpected close acknowlegement\n"); + return; + } + + if (port >= VTTY_PORTS) { + printk(KERN_WARNING + "hvc: close message from invalid virtual device.\n"); + return; + } + + /* For closes, just mark the console partition invalid */ + spin_lock_irqsave(&consolelock, flags); + + if (port_info[port].lp == event->xSourceLp) + port_info[port].lp = HvLpIndexInvalid; + + spin_unlock_irqrestore(&consolelock, flags); +} + +static void hvc_data_event(struct HvLpEvent *event) +{ + unsigned long flags; + struct viocharlpevent *cevent = (struct viocharlpevent *)event; + struct port_info *pi; + int n; + u8 port = cevent->virtual_device; + + if (port >= VTTY_PORTS) { + printk(KERN_WARNING "hvc: data on invalid virtual device %d\n", + port); + return; + } + if (cevent->len == 0) + return; + + /* + * Change 05/01/2003 - Ryan Arnold: If a partition other than + * the current exclusive partition tries to send us data + * events then just drop them on the floor because we don't + * want his stinking data. He isn't authorized to receive + * data because he wasn't the first one to get the console, + * therefore he shouldn't be allowed to send data either. + * This will work without an iSeries fix. + */ + pi = &port_info[port]; + if (pi->lp != event->xSourceLp) + return; + + spin_lock_irqsave(&consolelock, flags); + + n = IN_BUF_SIZE - pi->in_end; + if (n > cevent->len) + n = cevent->len; + if (n > 0) { + memcpy(&pi->in_buf[pi->in_end], cevent->data, n); + pi->in_end += n; + } + spin_unlock_irqrestore(&consolelock, flags); + if (n == 0) + printk(KERN_WARNING "hvc: input buffer overflow\n"); +} + +static void hvc_ack_event(struct HvLpEvent *event) +{ + struct viocharlpevent *cevent = (struct viocharlpevent *)event; + unsigned long flags; + u8 port = cevent->virtual_device; + + if (port >= VTTY_PORTS) { + printk(KERN_WARNING "hvc: data on invalid virtual device\n"); + return; + } + + spin_lock_irqsave(&consolelock, flags); + port_info[port].ack = event->xCorrelationToken; + spin_unlock_irqrestore(&consolelock, flags); +} + +static void hvc_config_event(struct HvLpEvent *event) +{ + struct viocharlpevent *cevent = (struct viocharlpevent *)event; + + if (cevent->data[0] == 0x01) + printk(KERN_INFO "hvc: window resized to %d: %d: %d: %d\n", + cevent->data[1], cevent->data[2], + cevent->data[3], cevent->data[4]); + else + printk(KERN_WARNING "hvc: unknown config event\n"); +} + +static void hvc_handle_event(struct HvLpEvent *event) +{ + int charminor; + + if (event == NULL) + return; + + charminor = event->xSubtype & VIOMINOR_SUBTYPE_MASK; + switch (charminor) { + case viocharopen: + hvc_open_event(event); + break; + case viocharclose: + hvc_close_event(event); + break; + case viochardata: + hvc_data_event(event); + break; + case viocharack: + hvc_ack_event(event); + break; + case viocharconfig: + hvc_config_event(event); + break; + default: + if (hvlpevent_is_int(event) && hvlpevent_need_ack(event)) { + event->xRc = HvLpEvent_Rc_InvalidSubtype; + HvCallEvent_ackLpEvent(event); + } + } +} + +static int send_open(HvLpIndex remoteLp, void *sem) +{ + return HvCallEvent_signalLpEventFast(remoteLp, + HvLpEvent_Type_VirtualIo, + viomajorsubtype_chario | viocharopen, + HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck, + viopath_sourceinst(remoteLp), + viopath_targetinst(remoteLp), + (u64)(unsigned long)sem, VIOVERSION << 16, + 0, 0, 0, 0); +} + +static int hvc_vio_init(void) +{ + atomic_t wait_flag; + int rc; + + /* +2 for fudge */ + rc = viopath_open(HvLpConfig_getPrimaryLpIndex(), + viomajorsubtype_chario, VIOCHAR_WINDOW + 2); + if (rc) + printk(KERN_WARNING "hvc: error opening to primary %d\n", rc); + + if (viopath_hostLp == HvLpIndexInvalid) + vio_set_hostlp(); + + /* + * And if the primary is not the same as the hosting LP, open to the + * hosting lp + */ + if ((viopath_hostLp != HvLpIndexInvalid) && + (viopath_hostLp != HvLpConfig_getPrimaryLpIndex())) { + printk(KERN_INFO "hvc: open path to hosting (%d)\n", + viopath_hostLp); + rc = viopath_open(viopath_hostLp, viomajorsubtype_chario, + VIOCHAR_WINDOW + 2); /* +2 for fudge */ + if (rc) + printk(KERN_WARNING + "error opening to partition %d: %d\n", + viopath_hostLp, rc); + } + + if (vio_setHandler(viomajorsubtype_chario, hvc_handle_event) < 0) + printk(KERN_WARNING + "hvc: error seting handler for console events!\n"); + + /* + * First, try to open the console to the hosting lp. + * Wait on a semaphore for the response. + */ + atomic_set(&wait_flag, 0); + if ((viopath_isactive(viopath_hostLp)) && + (send_open(viopath_hostLp, &wait_flag) == 0)) { + printk(KERN_INFO "hvc: hosting partition %d\n", viopath_hostLp); + while (atomic_read(&wait_flag) == 0) + mb(); + atomic_set(&wait_flag, 0); + } + + /* + * If we don't have an active console, try the primary + */ + if ((!viopath_isactive(port_info[0].lp)) && + (viopath_isactive(HvLpConfig_getPrimaryLpIndex())) && + (send_open(HvLpConfig_getPrimaryLpIndex(), &wait_flag) == 0)) { + printk(KERN_INFO "hvc: opening console to primary partition\n"); + while (atomic_read(&wait_flag) == 0) + mb(); + } + + /* Register as a vio device to receive callbacks */ + rc = vio_register_driver(&hvc_vio_driver); + + return rc; +} +module_init(hvc_vio_init); /* after drivers/char/hvc_console.c */ + +static void hvc_vio_exit(void) +{ + vio_unregister_driver(&hvc_vio_driver); +} +module_exit(hvc_vio_exit); + +/* the device tree order defines our numbering */ +static int hvc_find_vtys(void) +{ + struct device_node *vty; + int num_found = 0; + + for (vty = of_find_node_by_name(NULL, "vty"); vty != NULL; + vty = of_find_node_by_name(vty, "vty")) { + uint32_t *vtermno; + + /* We have statically defined space for only a certain number + * of console adapters. + */ + if ((num_found >= MAX_NR_HVC_CONSOLES) || + (num_found >= VTTY_PORTS)) + break; + + vtermno = (uint32_t *)get_property(vty, "reg", NULL); + if (!vtermno) + continue; + + if (!device_is_compatible(vty, "IBM,iSeries-vty")) + continue; + + if (num_found == 0) + add_preferred_console("hvc", 0, NULL); + hvc_instantiate(*vtermno, num_found, &hvc_get_put_ops); + ++num_found; + } + + return num_found; +} +console_initcall(hvc_find_vtys); diff --git a/drivers/char/viocons.c b/drivers/char/viocons.c index 766f7864c6c..f3efeaf2826 100644 --- a/drivers/char/viocons.c +++ b/drivers/char/viocons.c @@ -43,7 +43,6 @@ #include #include - #include #include #include @@ -67,35 +66,6 @@ static int vio_sysrq_pressed; extern int sysrq_enabled; #endif -/* - * The structure of the events that flow between us and OS/400. You can't - * mess with this unless the OS/400 side changes too - */ -struct viocharlpevent { - struct HvLpEvent event; - u32 reserved; - u16 version; - u16 subtype_result_code; - u8 virtual_device; - u8 len; - u8 data[VIOCHAR_MAX_DATA]; -}; - -#define VIOCHAR_WINDOW 10 -#define VIOCHAR_HIGHWATERMARK 3 - -enum viocharsubtype { - viocharopen = 0x0001, - viocharclose = 0x0002, - viochardata = 0x0003, - viocharack = 0x0004, - viocharconfig = 0x0005 -}; - -enum viochar_rc { - viochar_rc_ebusy = 1 -}; - #define VIOCHAR_NUM_BUF 16 /* @@ -1183,6 +1153,7 @@ static int __init viocons_init(void) port_info[i].magic = VIOTTY_MAGIC; } HvCall_setLogBufferFormatAndCodepage(HvCall_LogBuffer_ASCII, 437); + add_preferred_console("viocons", 0, NULL); register_console(&viocons_early); return 0; } diff --git a/include/asm-powerpc/iseries/vio.h b/include/asm-powerpc/iseries/vio.h index 72a97d37aac..7a95d296abd 100644 --- a/include/asm-powerpc/iseries/vio.h +++ b/include/asm-powerpc/iseries/vio.h @@ -122,6 +122,34 @@ enum viorc { viorc_openRejected = 0x0301 }; +/* + * The structure of the events that flow between us and OS/400 for chario + * events. You can't mess with this unless the OS/400 side changes too. + */ +struct viocharlpevent { + struct HvLpEvent event; + u32 reserved; + u16 version; + u16 subtype_result_code; + u8 virtual_device; + u8 len; + u8 data[VIOCHAR_MAX_DATA]; +}; + +#define VIOCHAR_WINDOW 10 + +enum viocharsubtype { + viocharopen = 0x0001, + viocharclose = 0x0002, + viochardata = 0x0003, + viocharack = 0x0004, + viocharconfig = 0x0005 +}; + +enum viochar_rc { + viochar_rc_ebusy = 1 +}; + struct device; extern struct device *iSeries_vio_dev; -- cgit v1.2.3-70-g09d2 From 4e9e95a3554e98e7383a3591283ffcd850c9ef48 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Thu, 13 Jul 2006 18:53:32 +1000 Subject: [POWERPC] Make the hvc_console output buffer size settable So the iSeries console will be faster since it can send up to 200 bytes at a time to the Hypervisor. This only affects the tty part of the console, the console writes are still in 16 byte lots. Signed-off-by: Stephen Rothwell --- drivers/char/hvc_console.c | 14 +++++++++----- drivers/char/hvc_console.h | 2 +- drivers/char/hvc_iseries.c | 3 ++- drivers/char/hvc_rtas.c | 2 +- drivers/char/hvc_vio.c | 3 ++- 5 files changed, 15 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c index ca2f538e549..dbee8bed053 100644 --- a/drivers/char/hvc_console.c +++ b/drivers/char/hvc_console.c @@ -80,7 +80,8 @@ struct hvc_struct { struct tty_struct *tty; unsigned int count; int do_wakeup; - char outbuf[N_OUTBUF] __ALIGNED__; + char *outbuf; + int outbuf_size; int n_outbuf; uint32_t vtermno; struct hv_ops *ops; @@ -505,7 +506,7 @@ static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count if (hp->n_outbuf > 0) hvc_push(hp); - while (count > 0 && (rsize = N_OUTBUF - hp->n_outbuf) > 0) { + while (count > 0 && (rsize = hp->outbuf_size - hp->n_outbuf) > 0) { if (rsize > count) rsize = count; memcpy(hp->outbuf + hp->n_outbuf, buf, rsize); @@ -538,7 +539,7 @@ static int hvc_write_room(struct tty_struct *tty) if (!hp) return -1; - return N_OUTBUF - hp->n_outbuf; + return hp->outbuf_size - hp->n_outbuf; } static int hvc_chars_in_buffer(struct tty_struct *tty) @@ -728,12 +729,13 @@ static struct kobj_type hvc_kobj_type = { }; struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq, - struct hv_ops *ops) + struct hv_ops *ops, int outbuf_size) { struct hvc_struct *hp; int i; - hp = kmalloc(sizeof(*hp), GFP_KERNEL); + hp = kmalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size, + GFP_KERNEL); if (!hp) return ERR_PTR(-ENOMEM); @@ -742,6 +744,8 @@ struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq, hp->vtermno = vtermno; hp->irq = irq; hp->ops = ops; + hp->outbuf_size = outbuf_size; + hp->outbuf = &((char *)hp)[ALIGN(sizeof(*hp), sizeof(long))]; kobject_init(&hp->kobj); hp->kobj.ktype = &hvc_kobj_type; diff --git a/drivers/char/hvc_console.h b/drivers/char/hvc_console.h index 96b7401319c..8c59818050e 100644 --- a/drivers/char/hvc_console.h +++ b/drivers/char/hvc_console.h @@ -56,7 +56,7 @@ extern int hvc_instantiate(uint32_t vtermno, int index, struct hv_ops *ops); /* register a vterm for hvc tty operation (module_init or hotplug add) */ extern struct hvc_struct * __devinit hvc_alloc(uint32_t vtermno, int irq, - struct hv_ops *ops); + struct hv_ops *ops, int outbuf_size); /* remove a vterm from hvc tty operation (modele_exit or hotplug remove) */ extern int __devexit hvc_remove(struct hvc_struct *hp); diff --git a/drivers/char/hvc_iseries.c b/drivers/char/hvc_iseries.c index 256afc8e583..4747729459c 100644 --- a/drivers/char/hvc_iseries.c +++ b/drivers/char/hvc_iseries.c @@ -221,7 +221,8 @@ static int __devinit hvc_vio_probe(struct vio_dev *vdev, pi = &port_info[vdev->unit_address]; - hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops); + hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops, + VIOCHAR_MAX_DATA); if (IS_ERR(hp)) return PTR_ERR(hp); pi->hp = hp; diff --git a/drivers/char/hvc_rtas.c b/drivers/char/hvc_rtas.c index 57106e02fd2..4b97eaf1860 100644 --- a/drivers/char/hvc_rtas.c +++ b/drivers/char/hvc_rtas.c @@ -94,7 +94,7 @@ static int hvc_rtas_init(void) /* Allocate an hvc_struct for the console device we instantiated * earlier. Save off hp so that we can return it on exit */ - hp = hvc_alloc(hvc_rtas_cookie, NO_IRQ, &hvc_rtas_get_put_ops); + hp = hvc_alloc(hvc_rtas_cookie, NO_IRQ, &hvc_rtas_get_put_ops, 16); if (IS_ERR(hp)) return PTR_ERR(hp); diff --git a/drivers/char/hvc_vio.c b/drivers/char/hvc_vio.c index 9add81ceb44..651e5d25f58 100644 --- a/drivers/char/hvc_vio.c +++ b/drivers/char/hvc_vio.c @@ -90,7 +90,8 @@ static int __devinit hvc_vio_probe(struct vio_dev *vdev, if (!vdev || !id) return -EPERM; - hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops); + hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops, + MAX_VIO_PUT_CHARS); if (IS_ERR(hp)) return PTR_ERR(hp); dev_set_drvdata(&vdev->dev, hp); -- cgit v1.2.3-70-g09d2 From 380ed24b1b81a188c5b716286143157a27935aab Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Thu, 13 Jul 2006 18:56:00 +1000 Subject: [POWERPC] iseries: Small viotape cleanup allowed by devfs removal Signed-off-by: Stephen Rothwell --- drivers/char/viotape.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c index b72b2049aaa..73c78bf75d7 100644 --- a/drivers/char/viotape.c +++ b/drivers/char/viotape.c @@ -940,7 +940,6 @@ static void vioHandleTapeEvent(struct HvLpEvent *event) static int viotape_probe(struct vio_dev *vdev, const struct vio_device_id *id) { - char tapename[32]; int i = vdev->unit_address; int j; @@ -956,10 +955,9 @@ static int viotape_probe(struct vio_dev *vdev, const struct vio_device_id *id) "iseries!vt%d", i); class_device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i | 0x80), NULL, "iseries!nvt%d", i); - sprintf(tapename, "iseries/vt%d", i); - printk(VIOTAPE_KERN_INFO "tape %s is iSeries " + printk(VIOTAPE_KERN_INFO "tape iseries/vt%d is iSeries " "resource %10.10s type %4.4s, model %3.3s\n", - tapename, viotape_unitinfo[i].rsrcname, + i, viotape_unitinfo[i].rsrcname, viotape_unitinfo[i].type, viotape_unitinfo[i].model); return 0; } -- cgit v1.2.3-70-g09d2 From 6a5a297cf78e64ed68577f3e3480bc10abf0124b Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Sat, 15 Jul 2006 13:05:24 +0100 Subject: MTD: [NAND] Fix the sharpsl driver after breakage from a core conversion The CNE bits are inverted on the device and writeb function is missing a NOT operation. Signed-off-by: Richard Purdie Signed-off-by: David Woodhouse --- drivers/mtd/nand/sharpsl.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index fbeedc3184e..51c7288ab49 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -78,7 +78,7 @@ static struct mtd_partition sharpsl_nand_default_partition_info[] = { /* * hardware specific access to control-lines * ctrl: - * NAND_CNE: bit 0 -> bit 0 & 4 + * NAND_CNE: bit 0 -> ! bit 0 & 4 * NAND_CLE: bit 1 -> bit 1 * NAND_ALE: bit 2 -> bit 2 * @@ -92,7 +92,10 @@ static void sharpsl_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned char bits = ctrl & 0x07; bits |= (ctrl & 0x01) << 4; - writeb((readb(FLASHCTL) & 0x17) | bits, FLASHCTL); + + bits ^= 0x11; + + writeb((readb(FLASHCTL) & ~0x17) | bits, FLASHCTL); } if (cmd != NAND_CMD_NONE) -- cgit v1.2.3-70-g09d2 From 9d05cd51780c3855976b26cbee265490a0a10be9 Mon Sep 17 00:00:00 2001 From: Rolf Eike Beer Date: Fri, 14 Jul 2006 14:39:06 +0200 Subject: remove #error on !PCI from pmc551.c PMC551 depends on PCI in Kconfig so there is no need to #error in code if PCI is not set. Signed-off-by: Rolf Eike Beer Signed-off-by: David Woodhouse --- drivers/mtd/devices/pmc551.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c index 6f9bbf6fee4..2c014970873 100644 --- a/drivers/mtd/devices/pmc551.c +++ b/drivers/mtd/devices/pmc551.c @@ -99,10 +99,6 @@ #include #include -#ifndef CONFIG_PCI -#error Enable PCI in your kernel config -#endif - #include #include #include -- cgit v1.2.3-70-g09d2 From 9a909867d2eca7727d0d5884df96e791e3531f24 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Sat, 15 Jul 2006 13:26:18 +0100 Subject: [MTD NAND] Fix lookup error in nand_get_flash_type() Spotted by liyu Signed-off-by: David Woodhouse --- drivers/mtd/nand/nand_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index cffd66309ff..119d17cdb78 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2222,7 +2222,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, } /* Try to identify manufacturer */ - for (maf_idx = 0; nand_manuf_ids[maf_idx].id != 0x0; maf_id++) { + for (maf_idx = 0; nand_manuf_ids[maf_idx].id != 0x0; maf_idx++) { if (nand_manuf_ids[maf_idx].id == *maf_id) break; } -- cgit v1.2.3-70-g09d2 From c4e7fb313771ac03dfdca26d30e8b721731c562b Mon Sep 17 00:00:00 2001 From: Ville Herva Date: Fri, 14 Jul 2006 00:31:16 +0300 Subject: block2mtd.c: Make kernel boot command line arguments work (try 4) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Trying to pass kernel command line arguments to block2mtd at boot-time does not work currently. block2mtd_setup() is called so early that kmalloc() fails nevermind being able to do open_bdev_excl() (which requires rootfs to be mounted. This patch only saves the option string at the early boot stage, and parses them later when block2mtd_init() is called. If open_bdev_excl() fails, open_by_devnum(name_to_dev_t()) is tried instead, which makes it possible to initialize the driver before rootfs has been mounted. Also gets rid of the superfluous parse_name() that only checks if name is longer than 80 chars and copies it to a string that is not kfreed. With this patch, I can boot statically compiled block2mtd, and mount jffs2 as rootfs (without modules or initrd), with lilo config like this: root=/dev/mtdblock0 append="rootfstype=jffs2 block2mtd.block2mtd=/dev/hdc2,65536" (Note that rootfstype=jffs2 is required, since the kernel only tries filesystems without "nodev" attribute by default, and jffs is "nodev"). Compared to first version of this patch, this one does not copy the parameters to the global buffer if init has already been called, and the global array is marked as __initdata. Compared to the second version of this patch, module build is fixed. Compared to the third version of this patch, statically compiled block2mtd driver with no boot-time parameter no longer gives spurious error 'cannot open device ""' Signed-off-by: Ville Herva Acked-by: Jörn Engel Signed-off-by: David Woodhouse --- drivers/mtd/devices/block2mtd.c | 93 ++++++++++++++++++++++++++++------------- 1 file changed, 63 insertions(+), 30 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index ede3561be87..401c6a294ba 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -18,6 +18,7 @@ #include #include #include +#include #define VERSION "$Revision: 1.30 $" @@ -236,6 +237,8 @@ static int _block2mtd_write(struct block2mtd_dev *dev, const u_char *buf, } return 0; } + + static int block2mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf) { @@ -299,6 +302,19 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) /* Get a handle on the device */ bdev = open_bdev_excl(devname, O_RDWR, NULL); +#ifndef MODULE + if (IS_ERR(bdev)) { + + /* We might not have rootfs mounted at this point. Try + to resolve the device name by other means. */ + + dev_t dev = name_to_dev_t(devname); + if (dev != 0) { + bdev = open_by_devnum(dev, FMODE_WRITE | FMODE_READ); + } + } +#endif + if (IS_ERR(bdev)) { ERROR("error: cannot open device %s", devname); goto devinit_err; @@ -393,26 +409,6 @@ static int parse_num(size_t *num, const char *token) } -static int parse_name(char **pname, const char *token, size_t limit) -{ - size_t len; - char *name; - - len = strlen(token) + 1; - if (len > limit) - return -ENOSPC; - - name = kmalloc(len, GFP_KERNEL); - if (!name) - return -ENOMEM; - - strcpy(name, token); - - *pname = name; - return 0; -} - - static inline void kill_final_newline(char *str) { char *newline = strrchr(str, '\n'); @@ -426,9 +422,15 @@ static inline void kill_final_newline(char *str) return 0; \ } while (0) -static int block2mtd_setup(const char *val, struct kernel_param *kp) +#ifndef MODULE +static int block2mtd_init_called = 0; +static __initdata char block2mtd_paramline[80 + 12]; /* 80 for device, 12 for erase size */ +#endif + + +static int block2mtd_setup2(const char *val) { - char buf[80+12]; /* 80 for device, 12 for erase size */ + char buf[80 + 12]; /* 80 for device, 12 for erase size */ char *str = buf; char *token[2]; char *name; @@ -450,13 +452,9 @@ static int block2mtd_setup(const char *val, struct kernel_param *kp) if (!token[0]) parse_err("no argument"); - ret = parse_name(&name, token[0], 80); - if (ret == -ENOMEM) - parse_err("out of memory"); - if (ret == -ENOSPC) - parse_err("name too long"); - if (ret) - return 0; + name = token[0]; + if (strlen(name) + 1 > 80) + parse_err("device name too long"); if (token[1]) { ret = parse_num(&erase_size, token[1]); @@ -472,13 +470,48 @@ static int block2mtd_setup(const char *val, struct kernel_param *kp) } +static int block2mtd_setup(const char *val, struct kernel_param *kp) +{ +#ifdef MODULE + return block2mtd_setup2(val); +#else + /* If more parameters are later passed in via + /sys/module/block2mtd/parameters/block2mtd + and block2mtd_init() has already been called, + we can parse the argument now. */ + + if (block2mtd_init_called) + return block2mtd_setup2(val); + + /* During early boot stage, we only save the parameters + here. We must parse them later: if the param passed + from kernel boot command line, block2mtd_setup() is + called so early that it is not possible to resolve + the device (even kmalloc() fails). Deter that work to + block2mtd_setup2(). */ + + strlcpy(block2mtd_paramline, val, sizeof(block2mtd_paramline)); + + return 0; +#endif +} + + module_param_call(block2mtd, block2mtd_setup, NULL, NULL, 0200); MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=[,]\""); static int __init block2mtd_init(void) { + int ret = 0; INFO("version " VERSION); - return 0; + +#ifndef MODULE + if (strlen(block2mtd_paramline)) + ret = block2mtd_setup2(block2mtd_paramline); + block2mtd_init_called = 1; +#endif + + return ret; } -- cgit v1.2.3-70-g09d2 From 46a1652c28fc4f4e9d46ea12b0c36b5b6b600f58 Mon Sep 17 00:00:00 2001 From: Alexey Korolev Date: Wed, 28 Jun 2006 19:22:07 +0100 Subject: [MTD] Fixes of performance and stability issues in CFI driver. Fix of performance and stability issues on Intel NOR chips. It fixes: 1. Very low write performance on Sibley (perf tests demonstrated write performance less than 100Kb/sec when it should be over 400Kb/sec). 2. Low erase performance. (perf tests on Sibleuy demonstrated erase performance 246Kb/sec when it should be over 300Kb/sec). 3. Error on JFFS2 tests with CPU loading application when MTD returns "block erase error: (status timeout)" To fix the issue it does the following: 1. Removes the timeout tuning from inval_cache_and_wait_for_operation. 2. Waiting conditions in inval_cache_and_wait_for_operation now is based on timer resolution If timeout is lower than timer resolution then we do in cycle "Checking the status" udelay(1); cond_resched(); If timeout is greater than timer resolution (probably erase operation) We do the following sleep for half of operation timeout and do in cycle the following "Checking the status" sleep for timer resolution Signed-off-by: Nicolas Pitre Signed-off-by: Alexey Korolev Signed-off-by: David Woodhouse --- drivers/mtd/chips/cfi_cmdset_0001.c | 87 ++++++++++++++++++------------------- 1 file changed, 43 insertions(+), 44 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index 39edb8250fb..7ea49a0d5ec 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -908,7 +908,7 @@ static void __xipram xip_enable(struct map_info *map, struct flchip *chip, static int __xipram xip_wait_for_operation( struct map_info *map, struct flchip *chip, - unsigned long adr, int *chip_op_time ) + unsigned long adr, unsigned int chip_op_time ) { struct cfi_private *cfi = map->fldrv_priv; struct cfi_pri_intelext *cfip = cfi->cmdset_priv; @@ -917,7 +917,7 @@ static int __xipram xip_wait_for_operation( flstate_t oldstate, newstate; start = xip_currtime(); - usec = *chip_op_time * 8; + usec = chip_op_time * 8; if (usec == 0) usec = 500000; done = 0; @@ -1027,8 +1027,8 @@ static int __xipram xip_wait_for_operation( #define XIP_INVAL_CACHED_RANGE(map, from, size) \ INVALIDATE_CACHED_RANGE(map, from, size) -#define INVAL_CACHE_AND_WAIT(map, chip, cmd_adr, inval_adr, inval_len, p_usec) \ - xip_wait_for_operation(map, chip, cmd_adr, p_usec) +#define INVAL_CACHE_AND_WAIT(map, chip, cmd_adr, inval_adr, inval_len, usec) \ + xip_wait_for_operation(map, chip, cmd_adr, usec) #else @@ -1040,64 +1040,64 @@ static int __xipram xip_wait_for_operation( static int inval_cache_and_wait_for_operation( struct map_info *map, struct flchip *chip, unsigned long cmd_adr, unsigned long inval_adr, int inval_len, - int *chip_op_time ) + unsigned int chip_op_time) { struct cfi_private *cfi = map->fldrv_priv; map_word status, status_OK = CMD(0x80); - int z, chip_state = chip->state; - unsigned long timeo; + int chip_state = chip->state; + unsigned int timeo, sleep_time; spin_unlock(chip->mutex); if (inval_len) INVALIDATE_CACHED_RANGE(map, inval_adr, inval_len); - if (*chip_op_time) - cfi_udelay(*chip_op_time); spin_lock(chip->mutex); - timeo = *chip_op_time * 8 * HZ / 1000000; - if (timeo < HZ/2) - timeo = HZ/2; - timeo += jiffies; + /* set our timeout to 8 times the expected delay */ + timeo = chip_op_time * 8; + if (!timeo) + timeo = 500000; + sleep_time = chip_op_time / 2; - z = 0; for (;;) { - if (chip->state != chip_state) { - /* Someone's suspended the operation: sleep */ - DECLARE_WAITQUEUE(wait, current); - - set_current_state(TASK_UNINTERRUPTIBLE); - add_wait_queue(&chip->wq, &wait); - spin_unlock(chip->mutex); - schedule(); - remove_wait_queue(&chip->wq, &wait); - timeo = jiffies + (HZ / 2); /* FIXME */ - spin_lock(chip->mutex); - continue; - } - status = map_read(map, cmd_adr); if (map_word_andequal(map, status, status_OK, status_OK)) break; - /* OK Still waiting */ - if (time_after(jiffies, timeo)) { + if (!timeo) { map_write(map, CMD(0x70), cmd_adr); chip->state = FL_STATUS; return -ETIME; } - /* Latency issues. Drop the lock, wait a while and retry */ - z++; + /* OK Still waiting. Drop the lock, wait a while and retry. */ spin_unlock(chip->mutex); - cfi_udelay(1); + if (sleep_time >= 1000000/HZ) { + /* + * Half of the normal delay still remaining + * can be performed with a sleeping delay instead + * of busy waiting. + */ + msleep(sleep_time/1000); + timeo -= sleep_time; + sleep_time = 1000000/HZ; + } else { + udelay(1); + cond_resched(); + timeo--; + } spin_lock(chip->mutex); - } - if (!z) { - if (!--(*chip_op_time)) - *chip_op_time = 1; - } else if (z > 1) - ++(*chip_op_time); + if (chip->state != chip_state) { + /* Someone's suspended the operation: sleep */ + DECLARE_WAITQUEUE(wait, current); + set_current_state(TASK_UNINTERRUPTIBLE); + add_wait_queue(&chip->wq, &wait); + spin_unlock(chip->mutex); + schedule(); + remove_wait_queue(&chip->wq, &wait); + spin_lock(chip->mutex); + } + } /* Done and happy. */ chip->state = FL_STATUS; @@ -1107,8 +1107,7 @@ static int inval_cache_and_wait_for_operation( #endif #define WAIT_TIMEOUT(map, chip, adr, udelay) \ - ({ int __udelay = (udelay); \ - INVAL_CACHE_AND_WAIT(map, chip, adr, 0, 0, &__udelay); }) + INVAL_CACHE_AND_WAIT(map, chip, adr, 0, 0, udelay); static int do_point_onechip (struct map_info *map, struct flchip *chip, loff_t adr, size_t len) @@ -1332,7 +1331,7 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip, ret = INVAL_CACHE_AND_WAIT(map, chip, adr, adr, map_bankwidth(map), - &chip->word_write_time); + chip->word_write_time); if (ret) { xip_enable(map, chip, adr); printk(KERN_ERR "%s: word write error (status timeout)\n", map->name); @@ -1569,7 +1568,7 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip, ret = INVAL_CACHE_AND_WAIT(map, chip, cmd_adr, adr, len, - &chip->buffer_write_time); + chip->buffer_write_time); if (ret) { map_write(map, CMD(0x70), cmd_adr); chip->state = FL_STATUS; @@ -1704,7 +1703,7 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip, ret = INVAL_CACHE_AND_WAIT(map, chip, adr, adr, len, - &chip->erase_time); + chip->erase_time); if (ret) { map_write(map, CMD(0x70), adr); chip->state = FL_STATUS; -- cgit v1.2.3-70-g09d2 From 804af2cf6e7af31d2e664b54e657dddd9b531dbd Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 26 Jul 2006 21:39:49 +0100 Subject: [AGPGART] remove private page protection map AGP keeps its own copy of the protection_map, upcoming DRM changes will also require access to this map from modules. Signed-off-by: Hugh Dickins Signed-off-by: Dave Airlie Signed-off-by: Dave Jones --- drivers/char/agp/frontend.c | 27 ++------------------------- include/linux/mm.h | 1 + mm/mmap.c | 7 +++++++ 3 files changed, 10 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c index d9c5a9142ad..0f2ed2aa2d8 100644 --- a/drivers/char/agp/frontend.c +++ b/drivers/char/agp/frontend.c @@ -151,35 +151,12 @@ static void agp_add_seg_to_client(struct agp_client *client, client->segments = seg; } -/* Originally taken from linux/mm/mmap.c from the array - * protection_map. - * The original really should be exported to modules, or - * some routine which does the conversion for you - */ - -static const pgprot_t my_protect_map[16] = -{ - __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111, - __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111 -}; - static pgprot_t agp_convert_mmap_flags(int prot) { -#define _trans(x,bit1,bit2) \ -((bit1==bit2)?(x&bit1):(x&bit1)?bit2:0) - unsigned long prot_bits; - pgprot_t temp; - - prot_bits = _trans(prot, PROT_READ, VM_READ) | - _trans(prot, PROT_WRITE, VM_WRITE) | - _trans(prot, PROT_EXEC, VM_EXEC); - - prot_bits |= VM_SHARED; - temp = my_protect_map[prot_bits & 0x0000000f]; - - return temp; + prot_bits = calc_vm_prot_bits(prot) | VM_SHARED; + return vm_get_page_prot(prot_bits); } static int agp_create_segment(struct agp_client *client, struct agp_region *region) diff --git a/include/linux/mm.h b/include/linux/mm.h index 990957e0929..4fba4560699 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1012,6 +1012,7 @@ static inline unsigned long vma_pages(struct vm_area_struct *vma) return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; } +pgprot_t vm_get_page_prot(unsigned long vm_flags); struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr); struct page *vmalloc_to_page(void *addr); unsigned long vmalloc_to_pfn(void *addr); diff --git a/mm/mmap.c b/mm/mmap.c index c1868ecdbc5..c7ed061f450 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -60,6 +60,13 @@ pgprot_t protection_map[16] = { __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111 }; +pgprot_t vm_get_page_prot(unsigned long vm_flags) +{ + return protection_map[vm_flags & + (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]; +} +EXPORT_SYMBOL(vm_get_page_prot); + int sysctl_overcommit_memory = OVERCOMMIT_GUESS; /* heuristic overcommit */ int sysctl_overcommit_ratio = 50; /* default is 50% */ int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT; -- cgit v1.2.3-70-g09d2 From 4288b92b9644fdb4c6168273873fe08f32090d7a Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Sat, 8 Jul 2006 22:38:56 -0700 Subject: [POWERPC] briq_panel Kconfig fix drivers/char/briq_panel.c:28:22: error: asm/prom.h: No such file or directory Cc: Jeremy Kerr Acked-by: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Paul Mackerras --- drivers/char/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index a7ef542afbc..320ad7ba11d 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -497,6 +497,7 @@ config LEGACY_PTY_COUNT config BRIQ_PANEL tristate 'Total Impact briQ front panel driver' + depends on PPC ---help--- The briQ is a small footprint CHRP computer with a frontpanel VFD, a tristate led and two switches. It is the size of a CDROM drive. -- cgit v1.2.3-70-g09d2 From 954a46e2d5aec6f59976ddeb1d232b486e59b54a Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Wed, 12 Jul 2006 15:39:43 +1000 Subject: [POWERPC] pseries: Constify & voidify get_property() Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. pseries platform changes. Built for pseries_defconfig Signed-off-by: Jeremy Kerr Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/pseries/eeh.c | 12 +++++------ arch/powerpc/platforms/pseries/eeh_driver.c | 4 ++-- arch/powerpc/platforms/pseries/eeh_event.c | 4 ++-- arch/powerpc/platforms/pseries/firmware.c | 2 +- arch/powerpc/platforms/pseries/iommu.c | 13 ++++++------ arch/powerpc/platforms/pseries/lpar.c | 10 ++++----- arch/powerpc/platforms/pseries/nvram.c | 5 +++-- arch/powerpc/platforms/pseries/pci.c | 2 +- arch/powerpc/platforms/pseries/ras.c | 4 ++-- arch/powerpc/platforms/pseries/rtasd.c | 4 ++-- arch/powerpc/platforms/pseries/setup.c | 12 +++++------ arch/powerpc/platforms/pseries/smp.c | 8 ++++---- arch/powerpc/platforms/pseries/xics.c | 22 ++++++++++---------- drivers/char/hvc_vio.c | 4 ++-- drivers/char/hvsi.c | 7 +++---- drivers/pci/hotplug/rpaphp_core.c | 32 ++++++++++++++--------------- 16 files changed, 72 insertions(+), 73 deletions(-) (limited to 'drivers') diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 32eaddfa547..5a23ce5e16f 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -691,11 +691,11 @@ static void *early_enable_eeh(struct device_node *dn, void *data) { struct eeh_early_enable_info *info = data; int ret; - char *status = get_property(dn, "status", NULL); - u32 *class_code = (u32 *)get_property(dn, "class-code", NULL); - u32 *vendor_id = (u32 *)get_property(dn, "vendor-id", NULL); - u32 *device_id = (u32 *)get_property(dn, "device-id", NULL); - u32 *regs; + const char *status = get_property(dn, "status", NULL); + const u32 *class_code = get_property(dn, "class-code", NULL); + const u32 *vendor_id = get_property(dn, "vendor-id", NULL); + const u32 *device_id = get_property(dn, "device-id", NULL); + const u32 *regs; int enable; struct pci_dn *pdn = PCI_DN(dn); @@ -737,7 +737,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data) /* Ok... see if this device supports EEH. Some do, some don't, * and the only way to find out is to check each and every one. */ - regs = (u32 *)get_property(dn, "reg", NULL); + regs = get_property(dn, "reg", NULL); if (regs) { /* First register entry is addr (00BBSS00) */ /* Try to enable eeh */ diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c index aaad2c0afcb..3269d2cd428 100644 --- a/arch/powerpc/platforms/pseries/eeh_driver.c +++ b/arch/powerpc/platforms/pseries/eeh_driver.c @@ -268,14 +268,14 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event) if (!frozen_dn) { - location = (char *) get_property(event->dn, "ibm,loc-code", NULL); + location = get_property(event->dn, "ibm,loc-code", NULL); location = location ? location : "unknown"; printk(KERN_ERR "EEH: Error: Cannot find partition endpoint " "for location=%s pci addr=%s\n", location, pci_name(event->dev)); return NULL; } - location = (char *) get_property(frozen_dn, "ibm,loc-code", NULL); + location = get_property(frozen_dn, "ibm,loc-code", NULL); location = location ? location : "unknown"; /* There are two different styles for coming up with the PE. diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c index 45ccc687e57..13707745131 100644 --- a/arch/powerpc/platforms/pseries/eeh_event.c +++ b/arch/powerpc/platforms/pseries/eeh_event.c @@ -124,11 +124,11 @@ int eeh_send_failure_event (struct device_node *dn, { unsigned long flags; struct eeh_event *event; - char *location; + const char *location; if (!mem_init_done) { printk(KERN_ERR "EEH: event during early boot not handled\n"); - location = (char *) get_property(dn, "ibm,loc-code", NULL); + location = get_property(dn, "ibm,loc-code", NULL); printk(KERN_ERR "EEH: device node = %s\n", dn->full_name); printk(KERN_ERR "EEH: PCI location = %s\n", location); return 1; diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c index c01d8f0cbe6..1c7b2baa5f7 100644 --- a/arch/powerpc/platforms/pseries/firmware.c +++ b/arch/powerpc/platforms/pseries/firmware.c @@ -68,7 +68,7 @@ firmware_features_table[FIRMWARE_MAX_FEATURES] = { void __init fw_feature_init(void) { struct device_node *dn; - char *hypertas, *s; + const char *hypertas, *s; int len, i; DBG(" -> fw_feature_init()\n"); diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index d67af2c6575..bbf2e34dc35 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -267,13 +267,12 @@ static void iommu_table_setparms(struct pci_controller *phb, struct iommu_table *tbl) { struct device_node *node; - unsigned long *basep; - unsigned int *sizep; + const unsigned long *basep, *sizep; node = (struct device_node *)phb->arch_data; - basep = (unsigned long *)get_property(node, "linux,tce-base", NULL); - sizep = (unsigned int *)get_property(node, "linux,tce-size", NULL); + basep = get_property(node, "linux,tce-base", NULL); + sizep = get_property(node, "linux,tce-size", NULL); if (basep == NULL || sizep == NULL) { printk(KERN_ERR "PCI_DMA: iommu_table_setparms: %s has " "missing tce entries !\n", dn->full_name); @@ -315,7 +314,7 @@ static void iommu_table_setparms(struct pci_controller *phb, static void iommu_table_setparms_lpar(struct pci_controller *phb, struct device_node *dn, struct iommu_table *tbl, - unsigned char *dma_window) + const void *dma_window) { unsigned long offset, size; @@ -415,7 +414,7 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus) struct iommu_table *tbl; struct device_node *dn, *pdn; struct pci_dn *ppci; - unsigned char *dma_window = NULL; + const void *dma_window = NULL; DBG("iommu_bus_setup_pSeriesLP, bus %p, bus->self %p\n", bus, bus->self); @@ -519,7 +518,7 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev) { struct device_node *pdn, *dn; struct iommu_table *tbl; - unsigned char *dma_window = NULL; + const void *dma_window = NULL; struct pci_dn *pci; DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, pci_name(dev)); diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 3aeb4069904..4cb7ff227f7 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -204,20 +204,20 @@ void __init udbg_init_debug_lpar(void) void __init find_udbg_vterm(void) { struct device_node *stdout_node; - u32 *termno; - char *name; + const u32 *termno; + const char *name; int add_console; /* find the boot console from /chosen/stdout */ if (!of_chosen) return; - name = (char *)get_property(of_chosen, "linux,stdout-path", NULL); + name = get_property(of_chosen, "linux,stdout-path", NULL); if (name == NULL) return; stdout_node = of_find_node_by_path(name); if (!stdout_node) return; - name = (char *)get_property(stdout_node, "name", NULL); + name = get_property(stdout_node, "name", NULL); if (!name) { printk(KERN_WARNING "stdout node missing 'name' property!\n"); goto out; @@ -228,7 +228,7 @@ void __init find_udbg_vterm(void) /* Check if it's a virtual terminal */ if (strncmp(name, "vty", 3) != 0) goto out; - termno = (u32 *)get_property(stdout_node, "reg", NULL); + termno = get_property(stdout_node, "reg", NULL); if (termno == NULL) goto out; vtermno = termno[0]; diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c index 18abfb1f4e2..64163cecdf9 100644 --- a/arch/powerpc/platforms/pseries/nvram.c +++ b/arch/powerpc/platforms/pseries/nvram.c @@ -123,13 +123,14 @@ static ssize_t pSeries_nvram_get_size(void) int __init pSeries_nvram_init(void) { struct device_node *nvram; - unsigned int *nbytes_p, proplen; + const unsigned int *nbytes_p; + unsigned int proplen; nvram = of_find_node_by_type(NULL, "nvram"); if (nvram == NULL) return -ENODEV; - nbytes_p = (unsigned int *)get_property(nvram, "#bytes", &proplen); + nbytes_p = get_property(nvram, "#bytes", &proplen); if (nbytes_p == NULL || proplen != sizeof(unsigned int)) return -EIO; diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c index e97e67f5e07..410a6bcc4ca 100644 --- a/arch/powerpc/platforms/pseries/pci.c +++ b/arch/powerpc/platforms/pseries/pci.c @@ -60,7 +60,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_name_device); static void __devinit check_s7a(void) { struct device_node *root; - char *model; + const char *model; s7a_workaround = 0; root = of_find_node_by_path("/"); diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c index 9df783088b6..0e6339ee45a 100644 --- a/arch/powerpc/platforms/pseries/ras.c +++ b/arch/powerpc/platforms/pseries/ras.c @@ -79,7 +79,7 @@ static void request_ras_irqs(struct device_node *np, { int i, index, count = 0; struct of_irq oirq; - u32 *opicprop; + const u32 *opicprop; unsigned int opicplen; unsigned int virqs[16]; @@ -87,7 +87,7 @@ static void request_ras_irqs(struct device_node *np, * map those interrupts using the default interrupt host and default * trigger */ - opicprop = (u32 *)get_property(np, "open-pic-interrupt", &opicplen); + opicprop = get_property(np, "open-pic-interrupt", &opicplen); if (opicprop) { opicplen /= sizeof(u32); for (i = 0; i < opicplen; i++) { diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c index 2e4e04042d8..8ca2612221d 100644 --- a/arch/powerpc/platforms/pseries/rtasd.c +++ b/arch/powerpc/platforms/pseries/rtasd.c @@ -359,11 +359,11 @@ static int enable_surveillance(int timeout) static int get_eventscan_parms(void) { struct device_node *node; - int *ip; + const int *ip; node = of_find_node_by_path("/rtas"); - ip = (int *)get_property(node, "rtas-event-scan-rate", NULL); + ip = get_property(node, "rtas-event-scan-rate", NULL); if (ip == NULL) { printk(KERN_ERR "rtasd: no rtas-event-scan-rate\n"); of_node_put(node); diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 54a52437265..927e0a423b8 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -133,9 +133,9 @@ void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc, static void __init pseries_mpic_init_IRQ(void) { struct device_node *np, *old, *cascade = NULL; - unsigned int *addrp; + const unsigned int *addrp; unsigned long intack = 0; - unsigned int *opprop; + const unsigned int *opprop; unsigned long openpic_addr = 0; unsigned int cascade_irq; int naddr, n, i, opplen; @@ -143,7 +143,7 @@ static void __init pseries_mpic_init_IRQ(void) np = of_find_node_by_path("/"); naddr = prom_n_addr_cells(np); - opprop = (unsigned int *) get_property(np, "platform-open-pic", &opplen); + opprop = get_property(np, "platform-open-pic", &opplen); if (opprop != 0) { openpic_addr = of_read_number(opprop, naddr); printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr); @@ -192,7 +192,7 @@ static void __init pseries_mpic_init_IRQ(void) break; if (strcmp(np->name, "pci") != 0) continue; - addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge", + addrp = get_property(np, "8259-interrupt-acknowledge", NULL); if (addrp == NULL) continue; @@ -249,11 +249,11 @@ static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary) static void __init pseries_discover_pic(void) { struct device_node *np; - char *typep; + const char *typep; for (np = NULL; (np = of_find_node_by_name(np, "interrupt-controller"));) { - typep = (char *)get_property(np, "compatible", NULL); + typep = get_property(np, "compatible", NULL); if (strstr(typep, "open-pic")) { pSeries_mpic_node = of_node_get(np); ppc_md.init_IRQ = pseries_mpic_init_IRQ; diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index ac61098ff40..f39dad8b99e 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -145,9 +145,9 @@ static int pSeries_add_processor(struct device_node *np) unsigned int cpu; cpumask_t candidate_map, tmp = CPU_MASK_NONE; int err = -ENOSPC, len, nthreads, i; - u32 *intserv; + const u32 *intserv; - intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", &len); + intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len); if (!intserv) return 0; @@ -205,9 +205,9 @@ static void pSeries_remove_processor(struct device_node *np) { unsigned int cpu; int len, nthreads, i; - u32 *intserv; + const u32 *intserv; - intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", &len); + intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len); if (!intserv) return; diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 716972aa977..75642104944 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -604,14 +604,14 @@ static void __init xics_init_one_node(struct device_node *np, unsigned int *indx) { unsigned int ilen; - u32 *ireg; + const u32 *ireg; /* This code does the theorically broken assumption that the interrupt * server numbers are the same as the hard CPU numbers. * This happens to be the case so far but we are playing with fire... * should be fixed one of these days. -BenH. */ - ireg = (u32 *)get_property(np, "ibm,interrupt-server-ranges", NULL); + ireg = get_property(np, "ibm,interrupt-server-ranges", NULL); /* Do that ever happen ? we'll know soon enough... but even good'old * f80 does have that property .. @@ -623,7 +623,7 @@ static void __init xics_init_one_node(struct device_node *np, */ *indx = *ireg; } - ireg = (u32 *)get_property(np, "reg", &ilen); + ireg = get_property(np, "reg", &ilen); if (!ireg) panic("xics_init_IRQ: can't find interrupt reg property"); @@ -649,7 +649,7 @@ static void __init xics_setup_8259_cascade(void) { struct device_node *np, *old, *found = NULL; int cascade, naddr; - u32 *addrp; + const u32 *addrp; unsigned long intack = 0; for_each_node_by_type(np, "interrupt-controller") @@ -675,7 +675,7 @@ static void __init xics_setup_8259_cascade(void) break; if (strcmp(np->name, "pci") != 0) continue; - addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge", NULL); + addrp = get_property(np, "8259-interrupt-acknowledge", NULL); if (addrp == NULL) continue; naddr = prom_n_addr_cells(np); @@ -694,7 +694,8 @@ void __init xics_init_IRQ(void) { int i; struct device_node *np; - u32 *ireg, ilen, indx = 0; + u32 ilen, indx = 0; + const u32 *ireg; int found = 0; ppc64_boot_msg(0x20, "XICS Init"); @@ -719,18 +720,17 @@ void __init xics_init_IRQ(void) for (np = of_find_node_by_type(NULL, "cpu"); np; np = of_find_node_by_type(np, "cpu")) { - ireg = (u32 *)get_property(np, "reg", &ilen); + ireg = get_property(np, "reg", &ilen); if (ireg && ireg[0] == get_hard_smp_processor_id(boot_cpuid)) { - ireg = (u32 *)get_property(np, - "ibm,ppc-interrupt-gserver#s", - &ilen); + ireg = get_property(np, + "ibm,ppc-interrupt-gserver#s", &ilen); i = ilen / sizeof(int); if (ireg && i > 0) { default_server = ireg[0]; /* take last element */ default_distrib_server = ireg[i-1]; } - ireg = (u32 *)get_property(np, + ireg = get_property(np, "ibm,interrupt-server#-size", NULL); if (ireg) interrupt_server_size = *ireg; diff --git a/drivers/char/hvc_vio.c b/drivers/char/hvc_vio.c index 651e5d25f58..cc95941148f 100644 --- a/drivers/char/hvc_vio.c +++ b/drivers/char/hvc_vio.c @@ -141,7 +141,7 @@ static int hvc_find_vtys(void) for (vty = of_find_node_by_name(NULL, "vty"); vty != NULL; vty = of_find_node_by_name(vty, "vty")) { - uint32_t *vtermno; + const uint32_t *vtermno; /* We have statically defined space for only a certain number * of console adapters. @@ -149,7 +149,7 @@ static int hvc_find_vtys(void) if (num_found >= MAX_NR_HVC_CONSOLES) break; - vtermno = (uint32_t *)get_property(vty, "reg", NULL); + vtermno = get_property(vty, "reg", NULL); if (!vtermno) continue; diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c index 56612a2dca6..542de0e51f3 100644 --- a/drivers/char/hvsi.c +++ b/drivers/char/hvsi.c @@ -1276,11 +1276,10 @@ static int __init hvsi_console_init(void) vty != NULL; vty = of_find_compatible_node(vty, "serial", "hvterm-protocol")) { struct hvsi_struct *hp; - uint32_t *vtermno; - uint32_t *irq; + const uint32_t *vtermno, *irq; - vtermno = (uint32_t *)get_property(vty, "reg", NULL); - irq = (uint32_t *)get_property(vty, "interrupts", NULL); + vtermno = get_property(vty, "reg", NULL); + irq = get_property(vty, "interrupts", NULL); if (!vtermno || !irq) continue; diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c index 076bd6dcafa..7288a3eccfb 100644 --- a/drivers/pci/hotplug/rpaphp_core.c +++ b/drivers/pci/hotplug/rpaphp_core.c @@ -176,16 +176,16 @@ static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_spe return 0; } -static int get_children_props(struct device_node *dn, int **drc_indexes, - int **drc_names, int **drc_types, int **drc_power_domains) +static int get_children_props(struct device_node *dn, const int **drc_indexes, + const int **drc_names, const int **drc_types, + const int **drc_power_domains) { - int *indexes, *names; - int *types, *domains; + const int *indexes, *names, *types, *domains; - indexes = (int *) get_property(dn, "ibm,drc-indexes", NULL); - names = (int *) get_property(dn, "ibm,drc-names", NULL); - types = (int *) get_property(dn, "ibm,drc-types", NULL); - domains = (int *) get_property(dn, "ibm,drc-power-domains", NULL); + indexes = get_property(dn, "ibm,drc-indexes", NULL); + names = get_property(dn, "ibm,drc-names", NULL); + types = get_property(dn, "ibm,drc-types", NULL); + domains = get_property(dn, "ibm,drc-power-domains", NULL); if (!indexes || !names || !types || !domains) { /* Slot does not have dynamically-removable children */ @@ -212,13 +212,13 @@ static int get_children_props(struct device_node *dn, int **drc_indexes, int rpaphp_get_drc_props(struct device_node *dn, int *drc_index, char **drc_name, char **drc_type, int *drc_power_domain) { - int *indexes, *names; - int *types, *domains; - unsigned int *my_index; + const int *indexes, *names; + const int *types, *domains; + const unsigned int *my_index; char *name_tmp, *type_tmp; int i, rc; - my_index = (int *) get_property(dn, "ibm,my-drc-index", NULL); + my_index = get_property(dn, "ibm,my-drc-index", NULL); if (!my_index) { /* Node isn't DLPAR/hotplug capable */ return -EINVAL; @@ -265,10 +265,10 @@ static int is_php_type(char *drc_type) return 1; } -static int is_php_dn(struct device_node *dn, int **indexes, int **names, - int **types, int **power_domains) +static int is_php_dn(struct device_node *dn, const int **indexes, + const int **names, const int **types, const int **power_domains) { - int *drc_types; + const int *drc_types; int rc; rc = get_children_props(dn, indexes, names, &drc_types, power_domains); @@ -296,7 +296,7 @@ int rpaphp_add_slot(struct device_node *dn) struct slot *slot; int retval = 0; int i; - int *indexes, *names, *types, *power_domains; + const int *indexes, *names, *types, *power_domains; char *name, *type; dbg("Entry %s: dn->full_name=%s\n", __FUNCTION__, dn->full_name); -- cgit v1.2.3-70-g09d2 From 018a3d1db7cdb6127656c1622ee1d2302e16436d Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Wed, 12 Jul 2006 15:40:29 +1000 Subject: [POWERPC] powermac: Constify & voidify get_property() Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. powermac platform & macintosh driver changes. Built for pmac32_defconfig, g5_defconfig Signed-off-by: Jeremy Kerr Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/powermac/backlight.c | 3 ++- arch/powerpc/platforms/powermac/cpufreq_32.c | 23 ++++++++--------- arch/powerpc/platforms/powermac/cpufreq_64.c | 27 ++++++++++---------- arch/powerpc/platforms/powermac/feature.c | 30 +++++++++++----------- arch/powerpc/platforms/powermac/low_i2c.c | 24 +++++++++--------- arch/powerpc/platforms/powermac/pci.c | 37 +++++++++++++++------------- arch/powerpc/platforms/powermac/pfunc_base.c | 2 +- arch/powerpc/platforms/powermac/pfunc_core.c | 5 ++-- arch/powerpc/platforms/powermac/setup.c | 18 ++++++-------- arch/powerpc/platforms/powermac/smp.c | 7 +++--- arch/powerpc/platforms/powermac/udbg_scc.c | 10 ++++---- drivers/i2c/busses/i2c-powermac.c | 3 ++- drivers/ide/ppc/pmac.c | 6 ++--- drivers/macintosh/macio_asic.c | 10 +++++--- drivers/macintosh/macio_sysfs.c | 8 +++--- drivers/macintosh/smu.c | 19 +++++++------- drivers/macintosh/therm_adt746x.c | 8 +++--- drivers/macintosh/therm_pm72.c | 14 +++++------ drivers/macintosh/therm_windtunnel.c | 4 +-- drivers/macintosh/via-cuda.c | 4 +-- drivers/macintosh/via-pmu-led.c | 2 +- drivers/macintosh/via-pmu.c | 10 ++++---- drivers/macintosh/windfarm_pm81.c | 4 +-- drivers/macintosh/windfarm_pm91.c | 2 +- drivers/macintosh/windfarm_smu_controls.c | 13 +++++----- drivers/macintosh/windfarm_smu_sat.c | 8 +++--- drivers/macintosh/windfarm_smu_sensors.c | 12 ++++----- drivers/serial/pmac_zilog.c | 9 ++++--- include/asm-powerpc/smu.h | 2 +- 29 files changed, 166 insertions(+), 158 deletions(-) (limited to 'drivers') diff --git a/arch/powerpc/platforms/powermac/backlight.c b/arch/powerpc/platforms/powermac/backlight.c index 69f65e215a5..205b4a39286 100644 --- a/arch/powerpc/platforms/powermac/backlight.c +++ b/arch/powerpc/platforms/powermac/backlight.c @@ -38,7 +38,8 @@ int pmac_has_backlight_type(const char *type) struct device_node* bk_node = find_devices("backlight"); if (bk_node) { - char *prop = get_property(bk_node, "backlight-control", NULL); + const char *prop = get_property(bk_node, + "backlight-control", NULL); if (prop && strncmp(prop, type, strlen(type)) == 0) return 1; } diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c index 62926248bdb..c2b6b4134f6 100644 --- a/arch/powerpc/platforms/powermac/cpufreq_32.c +++ b/arch/powerpc/platforms/powermac/cpufreq_32.c @@ -421,7 +421,7 @@ static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy) static u32 read_gpio(struct device_node *np) { - u32 *reg = (u32 *)get_property(np, "reg", NULL); + const u32 *reg = get_property(np, "reg", NULL); u32 offset; if (reg == NULL) @@ -497,7 +497,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode) "frequency-gpio"); struct device_node *slew_done_gpio_np = of_find_node_by_name(NULL, "slewing-done"); - u32 *value; + const u32 *value; /* * Check to see if it's GPIO driven or PMU only @@ -519,15 +519,15 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode) */ if (frequency_gpio && slew_done_gpio) { int lenp, rc; - u32 *freqs, *ratio; + const u32 *freqs, *ratio; - freqs = (u32 *)get_property(cpunode, "bus-frequencies", &lenp); + freqs = get_property(cpunode, "bus-frequencies", &lenp); lenp /= sizeof(u32); if (freqs == NULL || lenp != 2) { printk(KERN_ERR "cpufreq: bus-frequencies incorrect or missing\n"); return 1; } - ratio = (u32 *)get_property(cpunode, "processor-to-bus-ratio*2", NULL); + ratio = get_property(cpunode, "processor-to-bus-ratio*2", NULL); if (ratio == NULL) { printk(KERN_ERR "cpufreq: processor-to-bus-ratio*2 missing\n"); return 1; @@ -562,7 +562,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode) /* If we use the PMU, look for the min & max frequencies in the * device-tree */ - value = (u32 *)get_property(cpunode, "min-clock-frequency", NULL); + value = get_property(cpunode, "min-clock-frequency", NULL); if (!value) return 1; low_freq = (*value) / 1000; @@ -571,7 +571,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode) if (low_freq < 100000) low_freq *= 10; - value = (u32 *)get_property(cpunode, "max-clock-frequency", NULL); + value = get_property(cpunode, "max-clock-frequency", NULL); if (!value) return 1; hi_freq = (*value) / 1000; @@ -611,13 +611,14 @@ static int pmac_cpufreq_init_7447A(struct device_node *cpunode) static int pmac_cpufreq_init_750FX(struct device_node *cpunode) { struct device_node *volt_gpio_np; - u32 pvr, *value; + u32 pvr; + const u32 *value; if (get_property(cpunode, "dynamic-power-step", NULL) == NULL) return 1; hi_freq = cur_freq; - value = (u32 *)get_property(cpunode, "reduced-clock-frequency", NULL); + value = get_property(cpunode, "reduced-clock-frequency", NULL); if (!value) return 1; low_freq = (*value) / 1000; @@ -650,7 +651,7 @@ static int pmac_cpufreq_init_750FX(struct device_node *cpunode) static int __init pmac_cpufreq_setup(void) { struct device_node *cpunode; - u32 *value; + const u32 *value; if (strstr(cmd_line, "nocpufreq")) return 0; @@ -661,7 +662,7 @@ static int __init pmac_cpufreq_setup(void) goto out; /* Get current cpu clock freq */ - value = (u32 *)get_property(cpunode, "clock-frequency", NULL); + value = get_property(cpunode, "clock-frequency", NULL); if (!value) goto out; cur_freq = (*value) / 1000; diff --git a/arch/powerpc/platforms/powermac/cpufreq_64.c b/arch/powerpc/platforms/powermac/cpufreq_64.c index a6a84ac5433..c364c89adb4 100644 --- a/arch/powerpc/platforms/powermac/cpufreq_64.c +++ b/arch/powerpc/platforms/powermac/cpufreq_64.c @@ -89,7 +89,7 @@ static DEFINE_MUTEX(g5_switch_mutex); #ifdef CONFIG_PPC_SMU -static u32 *g5_pmode_data; +static const u32 *g5_pmode_data; static int g5_pmode_max; static struct smu_sdbp_fvt *g5_fvt_table; /* table of op. points */ @@ -391,7 +391,8 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) unsigned int psize, ssize; unsigned long max_freq; char *freq_method, *volt_method; - u32 *valp, pvr_hi; + const u32 *valp; + u32 pvr_hi; int use_volts_vdnap = 0; int use_volts_smu = 0; int rc = -ENODEV; @@ -409,8 +410,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) /* Get first CPU node */ for (cpunode = NULL; (cpunode = of_get_next_child(cpus, cpunode)) != NULL;) { - u32 *reg = - (u32 *)get_property(cpunode, "reg", NULL); + const u32 *reg = get_property(cpunode, "reg", NULL); if (reg == NULL || (*reg) != 0) continue; if (!strcmp(cpunode->type, "cpu")) @@ -422,7 +422,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) } /* Check 970FX for now */ - valp = (u32 *)get_property(cpunode, "cpu-version", NULL); + valp = get_property(cpunode, "cpu-version", NULL); if (!valp) { DBG("No cpu-version property !\n"); goto bail_noprops; @@ -434,7 +434,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) } /* Look for the powertune data in the device-tree */ - g5_pmode_data = (u32 *)get_property(cpunode, "power-mode-data",&psize); + g5_pmode_data = get_property(cpunode, "power-mode-data",&psize); if (!g5_pmode_data) { DBG("No power-mode-data !\n"); goto bail_noprops; @@ -442,7 +442,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) g5_pmode_max = psize / sizeof(u32) - 1; if (use_volts_smu) { - struct smu_sdbp_header *shdr; + const struct smu_sdbp_header *shdr; /* Look for the FVT table */ shdr = smu_get_sdb_partition(SMU_SDB_FVT_ID, NULL); @@ -493,7 +493,7 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) * half freq in this version. So far, I haven't yet seen a machine * supporting anything else. */ - valp = (u32 *)get_property(cpunode, "clock-frequency", NULL); + valp = get_property(cpunode, "clock-frequency", NULL); if (!valp) return -ENODEV; max_freq = (*valp)/1000; @@ -541,8 +541,8 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpus) static int __init g5_pm72_cpufreq_init(struct device_node *cpus) { struct device_node *cpuid = NULL, *hwclock = NULL, *cpunode = NULL; - u8 *eeprom = NULL; - u32 *valp; + const u8 *eeprom = NULL; + const u32 *valp; u64 max_freq, min_freq, ih, il; int has_volt = 1, rc = 0; @@ -563,7 +563,7 @@ static int __init g5_pm72_cpufreq_init(struct device_node *cpus) /* Lookup the cpuid eeprom node */ cpuid = of_find_node_by_path("/u3@0,f8000000/i2c@f8001000/cpuid@a0"); if (cpuid != NULL) - eeprom = (u8 *)get_property(cpuid, "cpuid", NULL); + eeprom = get_property(cpuid, "cpuid", NULL); if (eeprom == NULL) { printk(KERN_ERR "cpufreq: Can't find cpuid EEPROM !\n"); rc = -ENODEV; @@ -573,7 +573,8 @@ static int __init g5_pm72_cpufreq_init(struct device_node *cpus) /* Lookup the i2c hwclock */ for (hwclock = NULL; (hwclock = of_find_node_by_name(hwclock, "i2c-hwclock")) != NULL;){ - char *loc = get_property(hwclock, "hwctrl-location", NULL); + const char *loc = get_property(hwclock, + "hwctrl-location", NULL); if (loc == NULL) continue; if (strcmp(loc, "CPU CLOCK")) @@ -637,7 +638,7 @@ static int __init g5_pm72_cpufreq_init(struct device_node *cpus) */ /* Get max frequency from device-tree */ - valp = (u32 *)get_property(cpunode, "clock-frequency", NULL); + valp = get_property(cpunode, "clock-frequency", NULL); if (!valp) { printk(KERN_ERR "cpufreq: Can't find CPU frequency !\n"); rc = -ENODEV; diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c index f8313bf9a9f..13fcaf5b179 100644 --- a/arch/powerpc/platforms/powermac/feature.c +++ b/arch/powerpc/platforms/powermac/feature.c @@ -1058,8 +1058,8 @@ core99_reset_cpu(struct device_node *node, long param, long value) if (np == NULL) return -ENODEV; for (np = np->child; np != NULL; np = np->sibling) { - u32 *num = (u32 *)get_property(np, "reg", NULL); - u32 *rst = (u32 *)get_property(np, "soft-reset", NULL); + u32 *num = get_property(np, "reg", NULL); + u32 *rst = get_property(np, "soft-reset", NULL); if (num == NULL || rst == NULL) continue; if (param == *num) { @@ -1087,7 +1087,7 @@ core99_usb_enable(struct device_node *node, long param, long value) { struct macio_chip *macio; unsigned long flags; - char *prop; + const char *prop; int number; u32 reg; @@ -1096,7 +1096,7 @@ core99_usb_enable(struct device_node *node, long param, long value) macio->type != macio_intrepid) return -ENODEV; - prop = (char *)get_property(node, "AAPL,clock-id", NULL); + prop = get_property(node, "AAPL,clock-id", NULL); if (!prop) return -ENODEV; if (strncmp(prop, "usb0u048", 8) == 0) @@ -1507,8 +1507,8 @@ static long g5_reset_cpu(struct device_node *node, long param, long value) if (np == NULL) return -ENODEV; for (np = np->child; np != NULL; np = np->sibling) { - u32 *num = (u32 *)get_property(np, "reg", NULL); - u32 *rst = (u32 *)get_property(np, "soft-reset", NULL); + const u32 *num = get_property(np, "reg", NULL); + const u32 *rst = get_property(np, "soft-reset", NULL); if (num == NULL || rst == NULL) continue; if (param == *num) { @@ -2408,7 +2408,7 @@ static int __init probe_motherboard(void) */ dt = find_devices("device-tree"); if (dt != NULL) - model = (const char *) get_property(dt, "model", NULL); + model = get_property(dt, "model", NULL); for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) { if (strcmp(model, pmac_mb_defs[i].model_string) == 0) { pmac_mb = pmac_mb_defs[i]; @@ -2536,7 +2536,7 @@ found: */ static void __init probe_uninorth(void) { - u32 *addrp; + const u32 *addrp; phys_addr_t address; unsigned long actrl; @@ -2555,7 +2555,7 @@ static void __init probe_uninorth(void) if (uninorth_node == NULL) return; - addrp = (u32 *)get_property(uninorth_node, "reg", NULL); + addrp = get_property(uninorth_node, "reg", NULL); if (addrp == NULL) return; address = of_translate_address(uninorth_node, addrp); @@ -2596,7 +2596,7 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ struct device_node* node; int i; volatile u32 __iomem *base; - u32 *addrp, *revp; + const u32 *addrp, *revp; phys_addr_t addr; u64 size; @@ -2639,7 +2639,7 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ return; } if (type == macio_keylargo || type == macio_keylargo2) { - u32 *did = (u32 *)get_property(node, "device-id", NULL); + const u32 *did = get_property(node, "device-id", NULL); if (*did == 0x00000025) type = macio_pangea; if (*did == 0x0000003e) @@ -2652,7 +2652,7 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ macio_chips[i].base = base; macio_chips[i].flags = MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON; macio_chips[i].name = macio_names[type]; - revp = (u32 *)get_property(node, "revision-id", NULL); + revp = get_property(node, "revision-id", NULL); if (revp) macio_chips[i].rev = *revp; printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n", @@ -2695,15 +2695,15 @@ static void __init initial_serial_shutdown(struct device_node *np) { int len; - struct slot_names_prop { + const struct slot_names_prop { int count; char name[1]; } *slots; - char *conn; + const char *conn; int port_type = PMAC_SCC_ASYNC; int modem = 0; - slots = (struct slot_names_prop *)get_property(np, "slot-names", &len); + slots = get_property(np, "slot-names", &len); conn = get_property(np, "AAPL,connector", &len); if (conn && (strcmp(conn, "infrared") == 0)) port_type = PMAC_SCC_IRDA; diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c index 8677f50c258..c2c7cf75dd5 100644 --- a/arch/powerpc/platforms/powermac/low_i2c.c +++ b/arch/powerpc/platforms/powermac/low_i2c.c @@ -477,7 +477,8 @@ static int kw_i2c_xfer(struct pmac_i2c_bus *bus, u8 addrdir, int subsize, static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np) { struct pmac_i2c_host_kw *host; - u32 *psteps, *prate, *addrp, steps; + const u32 *psteps, *prate, *addrp; + u32 steps; host = kzalloc(sizeof(struct pmac_i2c_host_kw), GFP_KERNEL); if (host == NULL) { @@ -490,7 +491,7 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np) * on all i2c keywest nodes so far ... we would have to fallback * to macio parsing if that wasn't the case */ - addrp = (u32 *)get_property(np, "AAPL,address", NULL); + addrp = get_property(np, "AAPL,address", NULL); if (addrp == NULL) { printk(KERN_ERR "low_i2c: Can't find address for %s\n", np->full_name); @@ -504,13 +505,13 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np) host->timeout_timer.function = kw_i2c_timeout; host->timeout_timer.data = (unsigned long)host; - psteps = (u32 *)get_property(np, "AAPL,address-step", NULL); + psteps = get_property(np, "AAPL,address-step", NULL); steps = psteps ? (*psteps) : 0x10; for (host->bsteps = 0; (steps & 0x01) == 0; host->bsteps++) steps >>= 1; /* Select interface rate */ host->speed = KW_I2C_MODE_25KHZ; - prate = (u32 *)get_property(np, "AAPL,i2c-rate", NULL); + prate = get_property(np, "AAPL,i2c-rate", NULL); if (prate) switch(*prate) { case 100: host->speed = KW_I2C_MODE_100KHZ; @@ -618,8 +619,8 @@ static void __init kw_i2c_probe(void) } else { for (child = NULL; (child = of_get_next_child(np, child)) != NULL;) { - u32 *reg = - (u32 *)get_property(child, "reg", NULL); + const u32 *reg = get_property(child, + "reg", NULL); if (reg == NULL) continue; kw_i2c_add(host, np, child, *reg); @@ -881,7 +882,7 @@ static void __init smu_i2c_probe(void) { struct device_node *controller, *busnode; struct pmac_i2c_bus *bus; - u32 *reg; + const u32 *reg; int sz; if (!smu_present()) @@ -904,7 +905,7 @@ static void __init smu_i2c_probe(void) if (strcmp(busnode->type, "i2c") && strcmp(busnode->type, "i2c-bus")) continue; - reg = (u32 *)get_property(busnode, "reg", NULL); + reg = get_property(busnode, "reg", NULL); if (reg == NULL) continue; @@ -948,9 +949,8 @@ struct pmac_i2c_bus *pmac_i2c_find_bus(struct device_node *node) list_for_each_entry(bus, &pmac_i2c_busses, link) { if (p == bus->busnode) { if (prev && bus->flags & pmac_i2c_multibus) { - u32 *reg; - reg = (u32 *)get_property(prev, "reg", - NULL); + const u32 *reg; + reg = get_property(prev, "reg", NULL); if (!reg) continue; if (((*reg) >> 8) != bus->channel) @@ -971,7 +971,7 @@ EXPORT_SYMBOL_GPL(pmac_i2c_find_bus); u8 pmac_i2c_get_dev_addr(struct device_node *device) { - u32 *reg = (u32 *)get_property(device, "reg", NULL); + const u32 *reg = get_property(device, "reg", NULL); if (reg == NULL) return 0; diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c index 556b349797e..787ffd999bc 100644 --- a/arch/powerpc/platforms/powermac/pci.c +++ b/arch/powerpc/platforms/powermac/pci.c @@ -69,16 +69,16 @@ struct device_node *k2_skiplist[2]; static int __init fixup_one_level_bus_range(struct device_node *node, int higher) { for (; node != 0;node = node->sibling) { - int * bus_range; - unsigned int *class_code; + const int * bus_range; + const unsigned int *class_code; int len; /* For PCI<->PCI bridges or CardBus bridges, we go down */ - class_code = (unsigned int *) get_property(node, "class-code", NULL); + class_code = get_property(node, "class-code", NULL); if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI && (*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS)) continue; - bus_range = (int *) get_property(node, "bus-range", &len); + bus_range = get_property(node, "bus-range", &len); if (bus_range != NULL && len > 2 * sizeof(int)) { if (bus_range[1] > higher) higher = bus_range[1]; @@ -96,13 +96,15 @@ static int __init fixup_one_level_bus_range(struct device_node *node, int higher */ static void __init fixup_bus_range(struct device_node *bridge) { - int * bus_range; - int len; + int *bus_range, len; + struct property *prop; /* Lookup the "bus-range" property for the hose */ - bus_range = (int *) get_property(bridge, "bus-range", &len); - if (bus_range == NULL || len < 2 * sizeof(int)) + prop = of_find_property(bridge, "bus-range", &len); + if (prop == NULL || prop->length < 2 * sizeof(int)) return; + + bus_range = (int *)prop->value; bus_range[1] = fixup_one_level_bus_range(bridge->child, bus_range[1]); } @@ -240,7 +242,7 @@ static struct pci_ops macrisc_pci_ops = static int chaos_validate_dev(struct pci_bus *bus, int devfn, int offset) { struct device_node *np; - u32 *vendor, *device; + const u32 *vendor, *device; if (offset >= 0x100) return PCIBIOS_BAD_REGISTER_NUMBER; @@ -248,8 +250,8 @@ static int chaos_validate_dev(struct pci_bus *bus, int devfn, int offset) if (np == NULL) return PCIBIOS_DEVICE_NOT_FOUND; - vendor = (u32 *)get_property(np, "vendor-id", NULL); - device = (u32 *)get_property(np, "device-id", NULL); + vendor = get_property(np, "vendor-id", NULL); + device = get_property(np, "device-id", NULL); if (vendor == NULL || device == NULL) return PCIBIOS_DEVICE_NOT_FOUND; @@ -689,20 +691,21 @@ static void __init fixup_nec_usb2(void) for (nec = NULL; (nec = of_find_node_by_name(nec, "usb")) != NULL;) { struct pci_controller *hose; - u32 data, *prop; + u32 data; + const u32 *prop; u8 bus, devfn; - prop = (u32 *)get_property(nec, "vendor-id", NULL); + prop = get_property(nec, "vendor-id", NULL); if (prop == NULL) continue; if (0x1033 != *prop) continue; - prop = (u32 *)get_property(nec, "device-id", NULL); + prop = get_property(nec, "device-id", NULL); if (prop == NULL) continue; if (0x0035 != *prop) continue; - prop = (u32 *)get_property(nec, "reg", NULL); + prop = get_property(nec, "reg", NULL); if (prop == NULL) continue; devfn = (prop[0] >> 8) & 0xff; @@ -901,7 +904,7 @@ static int __init add_bridge(struct device_node *dev) struct pci_controller *hose; struct resource rsrc; char *disp_name; - int *bus_range; + const int *bus_range; int primary = 1, has_address = 0; DBG("Adding PCI host bridge %s\n", dev->full_name); @@ -910,7 +913,7 @@ static int __init add_bridge(struct device_node *dev) has_address = (of_address_to_resource(dev, 0, &rsrc) == 0); /* Get bus range if any */ - bus_range = (int *) get_property(dev, "bus-range", &len); + bus_range = get_property(dev, "bus-range", &len); if (bus_range == NULL || len < 2 * sizeof(int)) { printk(KERN_WARNING "Can't get bus-range for %s, assume" " bus 0\n", dev->full_name); diff --git a/arch/powerpc/platforms/powermac/pfunc_base.c b/arch/powerpc/platforms/powermac/pfunc_base.c index 6d66359ec8c..829dacec96e 100644 --- a/arch/powerpc/platforms/powermac/pfunc_base.c +++ b/arch/powerpc/platforms/powermac/pfunc_base.c @@ -114,7 +114,7 @@ static void macio_gpio_init_one(struct macio_chip *macio) * we just create them all */ for (gp = NULL; (gp = of_get_next_child(gparent, gp)) != NULL;) { - u32 *reg = (u32 *)get_property(gp, "reg", NULL); + const u32 *reg = get_property(gp, "reg", NULL); unsigned long offset; if (reg == NULL) continue; diff --git a/arch/powerpc/platforms/powermac/pfunc_core.c b/arch/powerpc/platforms/powermac/pfunc_core.c index b117adbf957..7651f278615 100644 --- a/arch/powerpc/platforms/powermac/pfunc_core.c +++ b/arch/powerpc/platforms/powermac/pfunc_core.c @@ -813,14 +813,15 @@ struct pmf_function *__pmf_find_function(struct device_node *target, struct pmf_device *dev; struct pmf_function *func, *result = NULL; char fname[64]; - u32 *prop, ph; + const u32 *prop; + u32 ph; /* * Look for a "platform-*" function reference. If we can't find * one, then we fallback to a direct call attempt */ snprintf(fname, 63, "platform-%s", name); - prop = (u32 *)get_property(target, fname, NULL); + prop = get_property(target, fname, NULL); if (prop == NULL) goto find_it; ph = *prop; diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 31a9da769fa..824a618396a 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -116,7 +116,7 @@ extern struct smp_ops_t core99_smp_ops; static void pmac_show_cpuinfo(struct seq_file *m) { struct device_node *np; - char *pp; + const char *pp; int plen; int mbmodel; unsigned int mbflags; @@ -134,12 +134,12 @@ static void pmac_show_cpuinfo(struct seq_file *m) seq_printf(m, "machine\t\t: "); np = of_find_node_by_path("/"); if (np != NULL) { - pp = (char *) get_property(np, "model", NULL); + pp = get_property(np, "model", NULL); if (pp != NULL) seq_printf(m, "%s\n", pp); else seq_printf(m, "PowerMac\n"); - pp = (char *) get_property(np, "compatible", &plen); + pp = get_property(np, "compatible", &plen); if (pp != NULL) { seq_printf(m, "motherboard\t:"); while (plen > 0) { @@ -163,10 +163,8 @@ static void pmac_show_cpuinfo(struct seq_file *m) if (np == NULL) np = of_find_node_by_type(NULL, "cache"); if (np != NULL) { - unsigned int *ic = (unsigned int *) - get_property(np, "i-cache-size", NULL); - unsigned int *dc = (unsigned int *) - get_property(np, "d-cache-size", NULL); + const unsigned int *ic = get_property(np, "i-cache-size", NULL); + const unsigned int *dc = get_property(np, "d-cache-size", NULL); seq_printf(m, "L2 cache\t:"); has_l2cache = 1; if (get_property(np, "cache-unified", NULL) != 0 && dc) { @@ -254,7 +252,7 @@ static void __init l2cr_init(void) if (np == 0) np = find_type_devices("cpu"); if (np != 0) { - unsigned int *l2cr = (unsigned int *) + const unsigned int *l2cr = get_property(np, "l2cr-value", NULL); if (l2cr != 0) { ppc_override_l2cr = 1; @@ -277,7 +275,7 @@ static void __init l2cr_init(void) static void __init pmac_setup_arch(void) { struct device_node *cpu, *ic; - int *fp; + const int *fp; unsigned long pvr; pvr = PVR_VER(mfspr(SPRN_PVR)); @@ -287,7 +285,7 @@ static void __init pmac_setup_arch(void) loops_per_jiffy = 50000000 / HZ; cpu = of_find_node_by_type(NULL, "cpu"); if (cpu != NULL) { - fp = (int *) get_property(cpu, "clock-frequency", NULL); + fp = get_property(cpu, "clock-frequency", NULL); if (fp != NULL) { if (pvr >= 0x30 && pvr < 0x80) /* PPC970 etc. */ diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index 827b7121ffb..653eeb64d1e 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -548,7 +548,7 @@ static void __init smp_core99_setup_i2c_hwsync(int ncpus) struct device_node *cc = NULL; struct device_node *p; const char *name = NULL; - u32 *reg; + const u32 *reg; int ok; /* Look for the clock chip */ @@ -562,7 +562,7 @@ static void __init smp_core99_setup_i2c_hwsync(int ncpus) pmac_tb_clock_chip_host = pmac_i2c_find_bus(cc); if (pmac_tb_clock_chip_host == NULL) continue; - reg = (u32 *)get_property(cc, "reg", NULL); + reg = get_property(cc, "reg", NULL); if (reg == NULL) continue; switch (*reg) { @@ -707,8 +707,7 @@ static void __init smp_core99_setup(int ncpus) core99_tb_gpio = KL_GPIO_TB_ENABLE; /* default value */ cpu = of_find_node_by_type(NULL, "cpu"); if (cpu != NULL) { - tbprop = (u32 *)get_property(cpu, "timebase-enable", - NULL); + tbprop = get_property(cpu, "timebase-enable", NULL); if (tbprop) core99_tb_gpio = *tbprop; of_node_put(cpu); diff --git a/arch/powerpc/platforms/powermac/udbg_scc.c b/arch/powerpc/platforms/powermac/udbg_scc.c index 37e5b1eff91..ce1a235855f 100644 --- a/arch/powerpc/platforms/powermac/udbg_scc.c +++ b/arch/powerpc/platforms/powermac/udbg_scc.c @@ -68,11 +68,11 @@ static unsigned char scc_inittab[] = { void udbg_scc_init(int force_scc) { - u32 *reg; + const u32 *reg; unsigned long addr; struct device_node *stdout = NULL, *escc = NULL, *macio = NULL; struct device_node *ch, *ch_def = NULL, *ch_a = NULL; - char *path; + const char *path; int i, x; escc = of_find_node_by_name(NULL, "escc"); @@ -81,7 +81,7 @@ void udbg_scc_init(int force_scc) macio = of_get_parent(escc); if (macio == NULL) goto bail; - path = (char *)get_property(of_chosen, "linux,stdout-path", NULL); + path = get_property(of_chosen, "linux,stdout-path", NULL); if (path != NULL) stdout = of_find_node_by_path(path); for (ch = NULL; (ch = of_get_next_child(escc, ch)) != NULL;) { @@ -96,13 +96,13 @@ void udbg_scc_init(int force_scc) ch = ch_def ? ch_def : ch_a; /* Get address within mac-io ASIC */ - reg = (u32 *)get_property(escc, "reg", NULL); + reg = get_property(escc, "reg", NULL); if (reg == NULL) goto bail; addr = reg[0]; /* Get address of mac-io PCI itself */ - reg = (u32 *)get_property(macio, "assigned-addresses", NULL); + reg = get_property(macio, "assigned-addresses", NULL); if (reg == NULL) goto bail; addr += reg[2]; diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c index 2a0b3be7cdd..e8a6de5a151 100644 --- a/drivers/i2c/busses/i2c-powermac.c +++ b/drivers/i2c/busses/i2c-powermac.c @@ -209,7 +209,8 @@ static int i2c_powermac_probe(struct device *dev) struct pmac_i2c_bus *bus = dev->platform_data; struct device_node *parent = NULL; struct i2c_adapter *adapter; - char name[32], *basename; + char name[32]; + const char *basename; int rc; if (bus == NULL) diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index ebf961f1718..fa46856e806 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -1154,7 +1154,7 @@ static int pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif) { struct device_node *np = pmif->node; - int *bidp; + const int *bidp; pmif->cable_80 = 0; pmif->broken_dma = pmif->broken_dma_warn = 0; @@ -1176,14 +1176,14 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif) pmif->broken_dma = 1; } - bidp = (int *)get_property(np, "AAPL,bus-id", NULL); + bidp = get_property(np, "AAPL,bus-id", NULL); pmif->aapl_bus_id = bidp ? *bidp : 0; /* Get cable type from device-tree */ if (pmif->kind == controller_kl_ata4 || pmif->kind == controller_un_ata6 || pmif->kind == controller_k2_ata6 || pmif->kind == controller_sh_ata6) { - char* cable = get_property(np, "cable-type", NULL); + const char* cable = get_property(np, "cable-type", NULL); if (cable && !strncmp(cable, "80-", 3)) pmif->cable_80 = 1; } diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c index 80c0c665b5f..7817cf286d0 100644 --- a/drivers/macintosh/macio_asic.c +++ b/drivers/macintosh/macio_asic.c @@ -139,7 +139,9 @@ static int macio_uevent(struct device *dev, char **envp, int num_envp, { struct macio_dev * macio_dev; struct of_device * of; - char *scratch, *compat, *compat2; + char *scratch; + const char *compat, *compat2; + int i = 0; int length, cplen, cplen2, seen = 0; @@ -173,7 +175,7 @@ static int macio_uevent(struct device *dev, char **envp, int num_envp, * it's not really legal to split it out with commas. We split it * up using a number of environment variables instead. */ - compat = (char *) get_property(of->node, "compatible", &cplen); + compat = get_property(of->node, "compatible", &cplen); compat2 = compat; cplen2= cplen; while (compat && cplen > 0) { @@ -454,7 +456,7 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip, struct resource *parent_res) { struct macio_dev *dev; - u32 *reg; + const u32 *reg; if (np == NULL) return NULL; @@ -489,7 +491,7 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip, #endif MAX_NODE_NAME_SIZE, np->name); } else { - reg = (u32 *)get_property(np, "reg", NULL); + reg = get_property(np, "reg", NULL); sprintf(dev->ofdev.dev.bus_id, "%1d.%08x:%.*s", chip->lbus.index, reg ? *reg : 0, MAX_NODE_NAME_SIZE, np->name); diff --git a/drivers/macintosh/macio_sysfs.c b/drivers/macintosh/macio_sysfs.c index cae24a13526..8566bdfdd4b 100644 --- a/drivers/macintosh/macio_sysfs.c +++ b/drivers/macintosh/macio_sysfs.c @@ -16,12 +16,12 @@ static ssize_t compatible_show (struct device *dev, struct device_attribute *attr, char *buf) { struct of_device *of; - char *compat; + const char *compat; int cplen; int length = 0; of = &to_macio_device (dev)->ofdev; - compat = (char *) get_property(of->node, "compatible", &cplen); + compat = get_property(of->node, "compatible", &cplen); if (!compat) { *buf = '\0'; return 0; @@ -42,12 +42,12 @@ static ssize_t modalias_show (struct device *dev, struct device_attribute *attr, char *buf) { struct of_device *of; - char *compat; + const char *compat; int cplen; int length; of = &to_macio_device (dev)->ofdev; - compat = (char *) get_property (of->node, "compatible", &cplen); + compat = get_property(of->node, "compatible", &cplen); if (!compat) compat = "", cplen = 1; length = sprintf (buf, "of:N%sT%s", of->node->name, of->node->type); buf += length; diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c index f139a74696f..6f358600536 100644 --- a/drivers/macintosh/smu.c +++ b/drivers/macintosh/smu.c @@ -447,7 +447,7 @@ EXPORT_SYMBOL(smu_present); int __init smu_init (void) { struct device_node *np; - u32 *data; + const u32 *data; np = of_find_node_by_type(NULL, "smu"); if (np == NULL) @@ -483,7 +483,7 @@ int __init smu_init (void) printk(KERN_ERR "SMU: Can't find doorbell GPIO !\n"); goto fail; } - data = (u32 *)get_property(np, "reg", NULL); + data = get_property(np, "reg", NULL); if (data == NULL) { of_node_put(np); printk(KERN_ERR "SMU: Can't find doorbell GPIO address !\n"); @@ -506,7 +506,7 @@ int __init smu_init (void) np = of_find_node_by_name(NULL, "smu-interrupt"); if (np == NULL) break; - data = (u32 *)get_property(np, "reg", NULL); + data = get_property(np, "reg", NULL); if (data == NULL) { of_node_put(np); break; @@ -959,11 +959,11 @@ static struct smu_sdbp_header *smu_create_sdb_partition(int id) /* Note: Only allowed to return error code in pointers (using ERR_PTR) * when interruptible is 1 */ -struct smu_sdbp_header *__smu_get_sdb_partition(int id, unsigned int *size, - int interruptible) +const struct smu_sdbp_header *__smu_get_sdb_partition(int id, + unsigned int *size, int interruptible) { char pname[32]; - struct smu_sdbp_header *part; + const struct smu_sdbp_header *part; if (!smu) return NULL; @@ -980,8 +980,7 @@ struct smu_sdbp_header *__smu_get_sdb_partition(int id, unsigned int *size, } else mutex_lock(&smu_part_access); - part = (struct smu_sdbp_header *)get_property(smu->of_node, - pname, size); + part = get_property(smu->of_node, pname, size); if (part == NULL) { DPRINTK("trying to extract from SMU ...\n"); part = smu_create_sdb_partition(id); @@ -992,7 +991,7 @@ struct smu_sdbp_header *__smu_get_sdb_partition(int id, unsigned int *size, return part; } -struct smu_sdbp_header *smu_get_sdb_partition(int id, unsigned int *size) +const struct smu_sdbp_header *smu_get_sdb_partition(int id, unsigned int *size) { return __smu_get_sdb_partition(id, size, 0); } @@ -1071,7 +1070,7 @@ static ssize_t smu_write(struct file *file, const char __user *buf, pp->mode = smu_file_events; return 0; } else if (hdr.cmdtype == SMU_CMDTYPE_GET_PARTITION) { - struct smu_sdbp_header *part; + const struct smu_sdbp_header *part; part = __smu_get_sdb_partition(hdr.cmd, NULL, 1); if (part == NULL) return -EINVAL; diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c index 7f86478bdd3..a0f30d0853e 100644 --- a/drivers/macintosh/therm_adt746x.c +++ b/drivers/macintosh/therm_adt746x.c @@ -47,7 +47,7 @@ static u8 FAN_SPD_SET[2] = {0x30, 0x31}; static u8 default_limits_local[3] = {70, 50, 70}; /* local, sensor1, sensor2 */ static u8 default_limits_chip[3] = {80, 65, 80}; /* local, sensor1, sensor2 */ -static char *sensor_location[3] = {NULL, NULL, NULL}; +static const char *sensor_location[3] = {NULL, NULL, NULL}; static int limit_adjust = 0; static int fan_speed = -1; @@ -553,7 +553,7 @@ static int __init thermostat_init(void) { struct device_node* np; - u32 *prop; + const u32 *prop; int i = 0, offset = 0; np = of_find_node_by_name(NULL, "fan"); @@ -566,13 +566,13 @@ thermostat_init(void) else return -ENODEV; - prop = (u32 *)get_property(np, "hwsensor-params-version", NULL); + prop = get_property(np, "hwsensor-params-version", NULL); printk(KERN_INFO "adt746x: version %d (%ssupported)\n", *prop, (*prop == 1)?"":"un"); if (*prop != 1) return -ENODEV; - prop = (u32 *)get_property(np, "reg", NULL); + prop = get_property(np, "reg", NULL); if (!prop) return -ENODEV; diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c index 20bf67244e2..d00c0c37a12 100644 --- a/drivers/macintosh/therm_pm72.c +++ b/drivers/macintosh/therm_pm72.c @@ -660,7 +660,7 @@ static int read_eeprom(int cpu, struct mpu_data *out) { struct device_node *np; char nodename[64]; - u8 *data; + const u8 *data; int len; /* prom.c routine for finding a node by path is a bit brain dead @@ -673,7 +673,7 @@ static int read_eeprom(int cpu, struct mpu_data *out) printk(KERN_ERR "therm_pm72: Failed to retrieve cpuid node from device-tree\n"); return -ENODEV; } - data = (u8 *)get_property(np, "cpuid", &len); + data = get_property(np, "cpuid", &len); if (data == NULL) { printk(KERN_ERR "therm_pm72: Failed to retrieve cpuid property from device-tree\n"); of_node_put(np); @@ -1336,7 +1336,7 @@ static int init_backside_state(struct backside_pid_state *state) */ u3 = of_find_node_by_path("/u3@0,f8000000"); if (u3 != NULL) { - u32 *vers = (u32 *)get_property(u3, "device-rev", NULL); + const u32 *vers = get_property(u3, "device-rev", NULL); if (vers) if (((*vers) & 0x3f) < 0x34) u3h = 0; @@ -2111,8 +2111,8 @@ static void fcu_lookup_fans(struct device_node *fcu_node) while ((np = of_get_next_child(fcu_node, np)) != NULL) { int type = -1; - char *loc; - u32 *reg; + const char *loc; + const u32 *reg; DBG(" control: %s, type: %s\n", np->name, np->type); @@ -2128,8 +2128,8 @@ static void fcu_lookup_fans(struct device_node *fcu_node) continue; /* Lookup for a matching location */ - loc = (char *)get_property(np, "location", NULL); - reg = (u32 *)get_property(np, "reg", NULL); + loc = get_property(np, "location", NULL); + reg = get_property(np, "reg", NULL); if (loc == NULL || reg == NULL) continue; DBG(" matching location: %s, reg: 0x%08x\n", loc, *reg); diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c index c7d1c290cb0..738faab1b22 100644 --- a/drivers/macintosh/therm_windtunnel.c +++ b/drivers/macintosh/therm_windtunnel.c @@ -484,14 +484,14 @@ struct apple_thermal_info { static int __init g4fan_init( void ) { - struct apple_thermal_info *info; + const struct apple_thermal_info *info; struct device_node *np; init_MUTEX( &x.lock ); if( !(np=of_find_node_by_name(NULL, "power-mgt")) ) return -ENODEV; - info = (struct apple_thermal_info*)get_property(np, "thermal-info", NULL); + info = get_property(np, "thermal-info", NULL); of_node_put(np); if( !info || !machine_is_compatible("PowerMac3,6") ) diff --git a/drivers/macintosh/via-cuda.c b/drivers/macintosh/via-cuda.c index 69d5452fd22..7512d1c1520 100644 --- a/drivers/macintosh/via-cuda.c +++ b/drivers/macintosh/via-cuda.c @@ -123,7 +123,7 @@ int __init find_via_cuda(void) { struct adb_request req; phys_addr_t taddr; - u32 *reg; + const u32 *reg; int err; if (vias != 0) @@ -132,7 +132,7 @@ int __init find_via_cuda(void) if (vias == 0) return 0; - reg = (u32 *)get_property(vias, "reg", NULL); + reg = get_property(vias, "reg", NULL); if (reg == NULL) { printk(KERN_ERR "via-cuda: No \"reg\" property !\n"); goto fail; diff --git a/drivers/macintosh/via-pmu-led.c b/drivers/macintosh/via-pmu-led.c index 5189d5454b1..179af10105d 100644 --- a/drivers/macintosh/via-pmu-led.c +++ b/drivers/macintosh/via-pmu-led.c @@ -120,7 +120,7 @@ static int __init via_pmu_led_init(void) dt = of_find_node_by_path("/"); if (dt == NULL) return -ENODEV; - model = (const char *)get_property(dt, "model", NULL); + model = get_property(dt, "model", NULL); if (model == NULL) return -ENODEV; if (strncmp(model, "PowerBook", strlen("PowerBook")) != 0 && diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index 06ca80bfd6b..80e88b4a1d0 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -287,7 +287,7 @@ static char *pbook_type[] = { int __init find_via_pmu(void) { u64 taddr; - u32 *reg; + const u32 *reg; if (via != 0) return 1; @@ -295,7 +295,7 @@ int __init find_via_pmu(void) if (vias == NULL) return 0; - reg = (u32 *)get_property(vias, "reg", NULL); + reg = get_property(vias, "reg", NULL); if (reg == NULL) { printk(KERN_ERR "via-pmu: No \"reg\" property !\n"); goto fail; @@ -337,7 +337,7 @@ int __init find_via_pmu(void) gpiop = of_find_node_by_name(NULL, "gpio"); if (gpiop) { - reg = (u32 *)get_property(gpiop, "reg", NULL); + reg = get_property(gpiop, "reg", NULL); if (reg) gaddr = of_translate_address(gpiop, reg); if (gaddr != OF_BAD_ADDR) @@ -486,9 +486,9 @@ static int __init via_pmu_dev_init(void) pmu_batteries[1].flags |= PMU_BATT_TYPE_SMART; } else { struct device_node* prim = find_devices("power-mgt"); - u32 *prim_info = NULL; + const u32 *prim_info = NULL; if (prim) - prim_info = (u32 *)get_property(prim, "prim-info", NULL); + prim_info = get_property(prim, "prim-info", NULL); if (prim_info) { /* Other stuffs here yet unknown */ pmu_battery_count = (prim_info[6] >> 16) & 0xff; diff --git a/drivers/macintosh/windfarm_pm81.c b/drivers/macintosh/windfarm_pm81.c index f1df6efcbe6..2ff546e4c92 100644 --- a/drivers/macintosh/windfarm_pm81.c +++ b/drivers/macintosh/windfarm_pm81.c @@ -396,7 +396,7 @@ static void wf_smu_sys_fans_tick(struct wf_smu_sys_fans_state *st) static void wf_smu_create_cpu_fans(void) { struct wf_cpu_pid_param pid_param; - struct smu_sdbp_header *hdr; + const struct smu_sdbp_header *hdr; struct smu_sdbp_cpupiddata *piddata; struct smu_sdbp_fvt *fvt; s32 tmax, tdelta, maxpow, powadj; @@ -702,7 +702,7 @@ static struct notifier_block wf_smu_events = { static int wf_init_pm(void) { - struct smu_sdbp_header *hdr; + const struct smu_sdbp_header *hdr; hdr = smu_get_sdb_partition(SMU_SDB_SENSORTREE_ID, NULL); if (hdr != 0) { diff --git a/drivers/macintosh/windfarm_pm91.c b/drivers/macintosh/windfarm_pm91.c index 0d6372e96d3..59e9ffe37c3 100644 --- a/drivers/macintosh/windfarm_pm91.c +++ b/drivers/macintosh/windfarm_pm91.c @@ -144,7 +144,7 @@ static struct wf_smu_slots_fans_state *wf_smu_slots_fans; static void wf_smu_create_cpu_fans(void) { struct wf_cpu_pid_param pid_param; - struct smu_sdbp_header *hdr; + const struct smu_sdbp_header *hdr; struct smu_sdbp_cpupiddata *piddata; struct smu_sdbp_fvt *fvt; s32 tmax, tdelta, maxpow, powadj; diff --git a/drivers/macintosh/windfarm_smu_controls.c b/drivers/macintosh/windfarm_smu_controls.c index a9e88edc0c7..bff1f372f18 100644 --- a/drivers/macintosh/windfarm_smu_controls.c +++ b/drivers/macintosh/windfarm_smu_controls.c @@ -159,14 +159,15 @@ static struct smu_fan_control *smu_fan_create(struct device_node *node, int pwm_fan) { struct smu_fan_control *fct; - s32 *v; u32 *reg; - char *l; + const s32 *v; + const u32 *reg; + const char *l; fct = kmalloc(sizeof(struct smu_fan_control), GFP_KERNEL); if (fct == NULL) return NULL; fct->ctrl.ops = &smu_fan_ops; - l = (char *)get_property(node, "location", NULL); + l = get_property(node, "location", NULL); if (l == NULL) goto fail; @@ -223,17 +224,17 @@ static struct smu_fan_control *smu_fan_create(struct device_node *node, goto fail; /* Get min & max values*/ - v = (s32 *)get_property(node, "min-value", NULL); + v = get_property(node, "min-value", NULL); if (v == NULL) goto fail; fct->min = *v; - v = (s32 *)get_property(node, "max-value", NULL); + v = get_property(node, "max-value", NULL); if (v == NULL) goto fail; fct->max = *v; /* Get "reg" value */ - reg = (u32 *)get_property(node, "reg", NULL); + reg = get_property(node, "reg", NULL); if (reg == NULL) goto fail; fct->reg = *reg; diff --git a/drivers/macintosh/windfarm_smu_sat.c b/drivers/macintosh/windfarm_smu_sat.c index e295a07a1eb..aceb61d9fbc 100644 --- a/drivers/macintosh/windfarm_smu_sat.c +++ b/drivers/macintosh/windfarm_smu_sat.c @@ -233,15 +233,15 @@ static void wf_sat_create(struct i2c_adapter *adapter, struct device_node *dev) { struct wf_sat *sat; struct wf_sat_sensor *sens; - u32 *reg; - char *loc, *type; + const u32 *reg; + const char *loc, *type; u8 addr, chip, core; struct device_node *child; int shift, cpu, index; char *name; int vsens[2], isens[2]; - reg = (u32 *) get_property(dev, "reg", NULL); + reg = get_property(dev, "reg", NULL); if (reg == NULL) return; addr = *reg; @@ -268,7 +268,7 @@ static void wf_sat_create(struct i2c_adapter *adapter, struct device_node *dev) isens[0] = isens[1] = -1; child = NULL; while ((child = of_get_next_child(dev, child)) != NULL) { - reg = (u32 *) get_property(child, "reg", NULL); + reg = get_property(child, "reg", NULL); type = get_property(child, "device_type", NULL); loc = get_property(child, "location", NULL); if (reg == NULL || loc == NULL) diff --git a/drivers/macintosh/windfarm_smu_sensors.c b/drivers/macintosh/windfarm_smu_sensors.c index bed25dcf8a1..defe9922ebd 100644 --- a/drivers/macintosh/windfarm_smu_sensors.c +++ b/drivers/macintosh/windfarm_smu_sensors.c @@ -198,14 +198,14 @@ static struct wf_sensor_ops smu_slotspow_ops = { static struct smu_ad_sensor *smu_ads_create(struct device_node *node) { struct smu_ad_sensor *ads; - char *c, *l; - u32 *v; + const char *c, *l; + const u32 *v; ads = kmalloc(sizeof(struct smu_ad_sensor), GFP_KERNEL); if (ads == NULL) return NULL; - c = (char *)get_property(node, "device_type", NULL); - l = (char *)get_property(node, "location", NULL); + c = get_property(node, "device_type", NULL); + l = get_property(node, "location", NULL); if (c == NULL || l == NULL) goto fail; @@ -255,7 +255,7 @@ static struct smu_ad_sensor *smu_ads_create(struct device_node *node) } else goto fail; - v = (u32 *)get_property(node, "reg", NULL); + v = get_property(node, "reg", NULL); if (v == NULL) goto fail; ads->reg = *v; @@ -382,7 +382,7 @@ smu_cpu_power_create(struct wf_sensor *volts, struct wf_sensor *amps) static void smu_fetch_param_partitions(void) { - struct smu_sdbp_header *hdr; + const struct smu_sdbp_header *hdr; /* Get CPU voltage/current/power calibration data */ hdr = smu_get_sdb_partition(SMU_SDB_CPUVCP_ID, NULL); diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c index bfd2a22759e..a3b99caf80e 100644 --- a/drivers/serial/pmac_zilog.c +++ b/drivers/serial/pmac_zilog.c @@ -1400,8 +1400,8 @@ static struct uart_ops pmz_pops = { static int __init pmz_init_port(struct uart_pmac_port *uap) { struct device_node *np = uap->node; - char *conn; - struct slot_names_prop { + const char *conn; + const struct slot_names_prop { int count; char name[1]; } *slots; @@ -1458,7 +1458,7 @@ no_dma: uap->flags |= PMACZILOG_FLAG_IS_IRDA; uap->port_type = PMAC_SCC_ASYNC; /* 1999 Powerbook G3 has slot-names property instead */ - slots = (struct slot_names_prop *)get_property(np, "slot-names", &len); + slots = get_property(np, "slot-names", &len); if (slots && slots->count > 0) { if (strcmp(slots->name, "IrDA") == 0) uap->flags |= PMACZILOG_FLAG_IS_IRDA; @@ -1470,7 +1470,8 @@ no_dma: if (ZS_IS_INTMODEM(uap)) { struct device_node* i2c_modem = find_devices("i2c-modem"); if (i2c_modem) { - char* mid = get_property(i2c_modem, "modem-id", NULL); + const char* mid = + get_property(i2c_modem, "modem-id", NULL); if (mid) switch(*mid) { case 0x04 : case 0x05 : diff --git a/include/asm-powerpc/smu.h b/include/asm-powerpc/smu.h index 51e65fc46a0..e49f644ca63 100644 --- a/include/asm-powerpc/smu.h +++ b/include/asm-powerpc/smu.h @@ -517,7 +517,7 @@ struct smu_sdbp_cpupiddata { * This returns the pointer to an SMU "sdb" partition data or NULL * if not found. The data format is described below */ -extern struct smu_sdbp_header *smu_get_sdb_partition(int id, +extern const struct smu_sdbp_header *smu_get_sdb_partition(int id, unsigned int *size); /* Get "sdb" partition data from an SMU satellite */ -- cgit v1.2.3-70-g09d2 From b04e3dd4ab4c7763a4ca8f751caaf69ce8dabbba Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Wed, 12 Jul 2006 15:40:40 +1000 Subject: [POWERPC] video & agp: Constify & voidify get_property() Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. powerpc-specific video & agp driver changes. Signed-off-by: Jeremy Kerr Signed-off-by: Paul Mackerras --- drivers/char/agp/uninorth-agp.c | 4 ++-- drivers/video/S3triofb.c | 12 ++++++------ drivers/video/aty/radeon_base.c | 8 ++++---- drivers/video/aty/radeon_monitor.c | 12 ++++++------ drivers/video/aty/radeon_pm.c | 4 ++-- drivers/video/nvidia/nv_of.c | 12 +++++------- drivers/video/offb.c | 22 +++++++++++----------- drivers/video/riva/fbdev.c | 5 ++--- 8 files changed, 38 insertions(+), 41 deletions(-) (limited to 'drivers') diff --git a/drivers/char/agp/uninorth-agp.c b/drivers/char/agp/uninorth-agp.c index 1de1b12043b..91b71e750ee 100644 --- a/drivers/char/agp/uninorth-agp.c +++ b/drivers/char/agp/uninorth-agp.c @@ -601,8 +601,8 @@ static int __devinit agp_uninorth_probe(struct pci_dev *pdev, uninorth_node = of_find_node_by_name(NULL, "u3"); } if (uninorth_node) { - int *revprop = (int *) - get_property(uninorth_node, "device-rev", NULL); + const int *revprop = get_property(uninorth_node, + "device-rev", NULL); if (revprop != NULL) uninorth_rev = *revprop & 0x3f; of_node_put(uninorth_node); diff --git a/drivers/video/S3triofb.c b/drivers/video/S3triofb.c index e714e8449c1..0f2ed75a681 100644 --- a/drivers/video/S3triofb.c +++ b/drivers/video/S3triofb.c @@ -350,30 +350,30 @@ static void __init s3triofb_of_init(struct device_node *dp) s3trio_name[sizeof(s3trio_name)-1] = '\0'; strcpy(fb_fix.id, s3trio_name); - if((pp = (int *)get_property(dp, "vendor-id", &len)) != NULL + if((pp = get_property(dp, "vendor-id", &len)) != NULL && *pp!=PCI_VENDOR_ID_S3) { printk("%s: can't find S3 Trio board\n", dp->full_name); return; } - if((pp = (int *)get_property(dp, "device-id", &len)) != NULL + if((pp = get_property(dp, "device-id", &len)) != NULL && *pp!=PCI_DEVICE_ID_S3_TRIO) { printk("%s: can't find S3 Trio board\n", dp->full_name); return; } - if ((pp = (int *)get_property(dp, "depth", &len)) != NULL + if ((pp = get_property(dp, "depth", &len)) != NULL && len == sizeof(int) && *pp != 8) { printk("%s: can't use depth = %d\n", dp->full_name, *pp); return; } - if ((pp = (int *)get_property(dp, "width", &len)) != NULL + if ((pp = get_property(dp, "width", &len)) != NULL && len == sizeof(int)) fb_var.xres = fb_var.xres_virtual = *pp; - if ((pp = (int *)get_property(dp, "height", &len)) != NULL + if ((pp = get_property(dp, "height", &len)) != NULL && len == sizeof(int)) fb_var.yres = fb_var.yres_virtual = *pp; - if ((pp = (int *)get_property(dp, "linebytes", &len)) != NULL + if ((pp = get_property(dp, "linebytes", &len)) != NULL && len == sizeof(int)) fb_fix.line_length = *pp; else diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c index 51b78f8de94..60c37add257 100644 --- a/drivers/video/aty/radeon_base.c +++ b/drivers/video/aty/radeon_base.c @@ -412,11 +412,11 @@ static int __devinit radeon_find_mem_vbios(struct radeonfb_info *rinfo) static int __devinit radeon_read_xtal_OF (struct radeonfb_info *rinfo) { struct device_node *dp = rinfo->of_node; - u32 *val; + const u32 *val; if (dp == NULL) return -ENODEV; - val = (u32 *) get_property(dp, "ATY,RefCLK", NULL); + val = get_property(dp, "ATY,RefCLK", NULL); if (!val || !*val) { printk(KERN_WARNING "radeonfb: No ATY,RefCLK property !\n"); return -EINVAL; @@ -424,11 +424,11 @@ static int __devinit radeon_read_xtal_OF (struct radeonfb_info *rinfo) rinfo->pll.ref_clk = (*val) / 10; - val = (u32 *) get_property(dp, "ATY,SCLK", NULL); + val = get_property(dp, "ATY,SCLK", NULL); if (val && *val) rinfo->pll.sclk = (*val) / 10; - val = (u32 *) get_property(dp, "ATY,MCLK", NULL); + val = get_property(dp, "ATY,MCLK", NULL); if (val && *val) rinfo->pll.mclk = (*val) / 10; diff --git a/drivers/video/aty/radeon_monitor.c b/drivers/video/aty/radeon_monitor.c index 98c05bc0de4..ea531a6f45d 100644 --- a/drivers/video/aty/radeon_monitor.c +++ b/drivers/video/aty/radeon_monitor.c @@ -64,13 +64,13 @@ static int __devinit radeon_parse_montype_prop(struct device_node *dp, u8 **out_ { static char *propnames[] = { "DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID2", NULL }; - u8 *pedid = NULL; - u8 *pmt = NULL; + const u8 *pedid = NULL; + const u8 *pmt = NULL; u8 *tmp; int i, mt = MT_NONE; RTRACE("analyzing OF properties...\n"); - pmt = (u8 *)get_property(dp, "display-type", NULL); + pmt = get_property(dp, "display-type", NULL); if (!pmt) return MT_NONE; RTRACE("display-type: %s\n", pmt); @@ -89,7 +89,7 @@ static int __devinit radeon_parse_montype_prop(struct device_node *dp, u8 **out_ } for (i = 0; propnames[i] != NULL; ++i) { - pedid = (u8 *)get_property(dp, propnames[i], NULL); + pedid = get_property(dp, propnames[i], NULL); if (pedid != NULL) break; } @@ -124,14 +124,14 @@ static int __devinit radeon_probe_OF_head(struct radeonfb_info *rinfo, int head_ return MT_NONE; if (rinfo->has_CRTC2) { - char *pname; + const char *pname; int len, second = 0; dp = dp->child; do { if (!dp) return MT_NONE; - pname = (char *)get_property(dp, "name", NULL); + pname = get_property(dp, "name", NULL); if (!pname) return MT_NONE; len = strlen(pname); diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c index c7091761cef..b9b9396d3bd 100644 --- a/drivers/video/aty/radeon_pm.c +++ b/drivers/video/aty/radeon_pm.c @@ -1167,7 +1167,7 @@ static void radeon_pm_full_reset_sdram(struct radeonfb_info *rinfo) 0x21320032, 0xa1320032, 0x21320032, 0xffffffff, 0x31320032 }; - u32 *mrtable = default_mrtable; + const u32 *mrtable = default_mrtable; int i, mrtable_size = ARRAY_SIZE(default_mrtable); mdelay(30); @@ -1186,7 +1186,7 @@ static void radeon_pm_full_reset_sdram(struct radeonfb_info *rinfo) if (rinfo->of_node != NULL) { int size; - mrtable = (u32 *)get_property(rinfo->of_node, "ATY,MRT", &size); + mrtable = get_property(rinfo->of_node, "ATY,MRT", &size); if (mrtable) mrtable_size = size >> 2; else diff --git a/drivers/video/nvidia/nv_of.c b/drivers/video/nvidia/nv_of.c index 8209106e26e..d9af88c2b58 100644 --- a/drivers/video/nvidia/nv_of.c +++ b/drivers/video/nvidia/nv_of.c @@ -32,7 +32,7 @@ int nvidia_probe_of_connector(struct fb_info *info, int conn, u8 **out_edid) { struct nvidia_par *par = info->par; struct device_node *parent, *dp; - unsigned char *pedid = NULL; + const unsigned char *pedid = NULL; static char *propnames[] = { "DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID,B", "EDID,A", NULL }; @@ -42,20 +42,19 @@ int nvidia_probe_of_connector(struct fb_info *info, int conn, u8 **out_edid) if (parent == NULL) return -1; if (par->twoHeads) { - char *pname; + const char *pname; int len; for (dp = NULL; (dp = of_get_next_child(parent, dp)) != NULL;) { - pname = (char *)get_property(dp, "name", NULL); + pname = get_property(dp, "name", NULL); if (!pname) continue; len = strlen(pname); if ((pname[len-1] == 'A' && conn == 1) || (pname[len-1] == 'B' && conn == 2)) { for (i = 0; propnames[i] != NULL; ++i) { - pedid = (unsigned char *) - get_property(dp, propnames[i], + pedid = get_property(dp, propnames[i], NULL); if (pedid != NULL) break; @@ -67,8 +66,7 @@ int nvidia_probe_of_connector(struct fb_info *info, int conn, u8 **out_edid) } if (pedid == NULL) { for (i = 0; propnames[i] != NULL; ++i) { - pedid = (unsigned char *) - get_property(parent, propnames[i], NULL); + pedid = get_property(parent, propnames[i], NULL); if (pedid != NULL) break; } diff --git a/drivers/video/offb.c b/drivers/video/offb.c index faba6722852..0e750a8510f 100644 --- a/drivers/video/offb.c +++ b/drivers/video/offb.c @@ -410,30 +410,30 @@ static void __init offb_init_nodriver(struct device_node *dp, int no_real_node) unsigned int flags, rsize, addr_prop = 0; unsigned long max_size = 0; u64 rstart, address = OF_BAD_ADDR; - u32 *pp, *addrp, *up; + const u32 *pp, *addrp, *up; u64 asize; - pp = (u32 *)get_property(dp, "linux,bootx-depth", &len); + pp = get_property(dp, "linux,bootx-depth", &len); if (pp == NULL) - pp = (u32 *)get_property(dp, "depth", &len); + pp = get_property(dp, "depth", &len); if (pp && len == sizeof(u32)) depth = *pp; - pp = (u32 *)get_property(dp, "linux,bootx-width", &len); + pp = get_property(dp, "linux,bootx-width", &len); if (pp == NULL) - pp = (u32 *)get_property(dp, "width", &len); + pp = get_property(dp, "width", &len); if (pp && len == sizeof(u32)) width = *pp; - pp = (u32 *)get_property(dp, "linux,bootx-height", &len); + pp = get_property(dp, "linux,bootx-height", &len); if (pp == NULL) - pp = (u32 *)get_property(dp, "height", &len); + pp = get_property(dp, "height", &len); if (pp && len == sizeof(u32)) height = *pp; - pp = (u32 *)get_property(dp, "linux,bootx-linebytes", &len); + pp = get_property(dp, "linux,bootx-linebytes", &len); if (pp == NULL) - pp = (u32 *)get_property(dp, "linebytes", &len); + pp = get_property(dp, "linebytes", &len); if (pp && len == sizeof(u32)) pitch = *pp; else @@ -451,9 +451,9 @@ static void __init offb_init_nodriver(struct device_node *dp, int no_real_node) * ranges and pick one that is both big enough and if possible encloses * the "address" property. If none match, we pick the biggest */ - up = (u32 *)get_property(dp, "linux,bootx-addr", &len); + up = get_property(dp, "linux,bootx-addr", &len); if (up == NULL) - up = (u32 *)get_property(dp, "address", &len); + up = get_property(dp, "address", &len); if (up && len == sizeof(u32)) addr_prop = *up; diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c index 2788655e6e7..6a30c0ca1de 100644 --- a/drivers/video/riva/fbdev.c +++ b/drivers/video/riva/fbdev.c @@ -1816,14 +1816,13 @@ static int __devinit riva_get_EDID_OF(struct fb_info *info, struct pci_dev *pd) NVTRACE_ENTER(); dp = pci_device_to_OF_node(pd); for (; dp != NULL; dp = dp->child) { - disptype = (unsigned char *)get_property(dp, "display-type", NULL); + disptype = get_property(dp, "display-type", NULL); if (disptype == NULL) continue; if (strncmp(disptype, "LCD", 3) != 0) continue; for (i = 0; propnames[i] != NULL; ++i) { - pedid = (unsigned char *) - get_property(dp, propnames[i], NULL); + pedid = get_property(dp, propnames[i], NULL); if (pedid != NULL) { par->EDID = pedid; NVTRACE("LCD found.\n"); -- cgit v1.2.3-70-g09d2 From 294ef16a2ee34d0d94aa63616f7552d3bc66c982 Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Wed, 12 Jul 2006 15:40:51 +1000 Subject: [POWERPC] scsi: Constify & voidify get_property() Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. powerpc-specific scsi driver changes. Signed-off-by: Jeremy Kerr Signed-off-by: Paul Mackerras --- drivers/scsi/ibmvscsi/rpa_vscsi.c | 11 ++++------- drivers/scsi/mac53c94.c | 2 +- drivers/scsi/mesh.c | 5 +++-- 3 files changed, 8 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/ibmvscsi/rpa_vscsi.c b/drivers/scsi/ibmvscsi/rpa_vscsi.c index 242b8873b33..cafef9cbbe2 100644 --- a/drivers/scsi/ibmvscsi/rpa_vscsi.c +++ b/drivers/scsi/ibmvscsi/rpa_vscsi.c @@ -156,8 +156,8 @@ static void gather_partition_info(void) { struct device_node *rootdn; - char *ppartition_name; - unsigned int *p_number_ptr; + const char *ppartition_name; + const unsigned int *p_number_ptr; /* Retrieve information about this partition */ rootdn = find_path_device("/"); @@ -165,14 +165,11 @@ static void gather_partition_info(void) return; } - ppartition_name = - get_property(rootdn, "ibm,partition-name", NULL); + ppartition_name = get_property(rootdn, "ibm,partition-name", NULL); if (ppartition_name) strncpy(partition_name, ppartition_name, sizeof(partition_name)); - p_number_ptr = - (unsigned int *)get_property(rootdn, "ibm,partition-no", - NULL); + p_number_ptr = get_property(rootdn, "ibm,partition-no", NULL); if (p_number_ptr) partition_number = *p_number_ptr; } diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c index 93edaa8696c..c77f6f2581f 100644 --- a/drivers/scsi/mac53c94.c +++ b/drivers/scsi/mac53c94.c @@ -431,7 +431,7 @@ static int mac53c94_probe(struct macio_dev *mdev, const struct of_device_id *mat struct fsc_state *state; struct Scsi_Host *host; void *dma_cmd_space; - unsigned char *clkprop; + const unsigned char *clkprop; int proplen, rc = -ENODEV; if (macio_resource_count(mdev) != 2 || macio_irq_count(mdev) != 2) { diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c index c88717727be..cee9758b927 100644 --- a/drivers/scsi/mesh.c +++ b/drivers/scsi/mesh.c @@ -1850,7 +1850,8 @@ static int mesh_probe(struct macio_dev *mdev, const struct of_device_id *match) { struct device_node *mesh = macio_get_of_node(mdev); struct pci_dev* pdev = macio_get_pci_dev(mdev); - int tgt, *cfp, minper; + int tgt, minper; + const int *cfp; struct mesh_state *ms; struct Scsi_Host *mesh_host; void *dma_cmd_space; @@ -1939,7 +1940,7 @@ static int mesh_probe(struct macio_dev *mdev, const struct of_device_id *match) ms->tgts[tgt].current_req = NULL; } - if ((cfp = (int *) get_property(mesh, "clock-frequency", NULL))) + if ((cfp = get_property(mesh, "clock-frequency", NULL))) ms->clk_freq = *cfp; else { printk(KERN_INFO "mesh: assuming 50MHz clock frequency\n"); -- cgit v1.2.3-70-g09d2 From 1a2509c946bfd4d4a4c5a6e816082d3a7de45db8 Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Wed, 12 Jul 2006 15:41:03 +1000 Subject: [POWERPC] netdevices: Constify & voidify get_property() Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. powerpc-specific network device driver changes. Signed-off-by: Jeremy Kerr Signed-off-by: Paul Mackerras --- drivers/net/bmac.c | 13 ++++++++----- drivers/net/mace.c | 2 +- drivers/net/spider_net.c | 12 ++++++------ drivers/net/sungem.c | 2 +- 4 files changed, 16 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bmac.c b/drivers/net/bmac.c index 6fad83f24c4..71160966563 100644 --- a/drivers/net/bmac.c +++ b/drivers/net/bmac.c @@ -1264,7 +1264,8 @@ static int __devinit bmac_probe(struct macio_dev *mdev, const struct of_device_i { int j, rev, ret; struct bmac_data *bp; - unsigned char *addr; + const unsigned char *prop_addr; + unsigned char addr[6]; struct net_device *dev; int is_bmac_plus = ((int)match->data) != 0; @@ -1272,14 +1273,16 @@ static int __devinit bmac_probe(struct macio_dev *mdev, const struct of_device_i printk(KERN_ERR "BMAC: can't use, need 3 addrs and 3 intrs\n"); return -ENODEV; } - addr = get_property(macio_get_of_node(mdev), "mac-address", NULL); - if (addr == NULL) { - addr = get_property(macio_get_of_node(mdev), "local-mac-address", NULL); - if (addr == NULL) { + prop_addr = get_property(macio_get_of_node(mdev), "mac-address", NULL); + if (prop_addr == NULL) { + prop_addr = get_property(macio_get_of_node(mdev), + "local-mac-address", NULL); + if (prop_addr == NULL) { printk(KERN_ERR "BMAC: Can't get mac-address\n"); return -ENODEV; } } + memcpy(addr, prop_addr, sizeof(addr)); dev = alloc_etherdev(PRIV_BYTES); if (!dev) { diff --git a/drivers/net/mace.c b/drivers/net/mace.c index 29e4b5aa6ea..5d80e0e6a8e 100644 --- a/drivers/net/mace.c +++ b/drivers/net/mace.c @@ -113,7 +113,7 @@ static int __devinit mace_probe(struct macio_dev *mdev, const struct of_device_i struct device_node *mace = macio_get_of_node(mdev); struct net_device *dev; struct mace_data *mp; - unsigned char *addr; + const unsigned char *addr; int j, rev, rc = -EBUSY; if (macio_resource_count(mdev) != 3 || macio_irq_count(mdev) != 3) { diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c index fb1d5a8a45c..b30290d53f7 100644 --- a/drivers/net/spider_net.c +++ b/drivers/net/spider_net.c @@ -1812,10 +1812,10 @@ spider_net_setup_phy(struct spider_net_card *card) */ static int spider_net_download_firmware(struct spider_net_card *card, - u8 *firmware_ptr) + const void *firmware_ptr) { int sequencer, i; - u32 *fw_ptr = (u32 *)firmware_ptr; + const u32 *fw_ptr = firmware_ptr; /* stop sequencers */ spider_net_write_reg(card, SPIDER_NET_GSINIT, @@ -1872,7 +1872,7 @@ spider_net_init_firmware(struct spider_net_card *card) { struct firmware *firmware = NULL; struct device_node *dn; - u8 *fw_prop = NULL; + const u8 *fw_prop = NULL; int err = -ENOENT; int fw_size; @@ -1898,7 +1898,7 @@ try_host_fw: if (!dn) goto out_err; - fw_prop = (u8 *)get_property(dn, "firmware", &fw_size); + fw_prop = get_property(dn, "firmware", &fw_size); if (!fw_prop) goto out_err; @@ -2058,7 +2058,7 @@ spider_net_setup_netdev(struct spider_net_card *card) struct net_device *netdev = card->netdev; struct device_node *dn; struct sockaddr addr; - u8 *mac; + const u8 *mac; SET_MODULE_OWNER(netdev); SET_NETDEV_DEV(netdev, &card->pdev->dev); @@ -2089,7 +2089,7 @@ spider_net_setup_netdev(struct spider_net_card *card) if (!dn) return -EIO; - mac = (u8 *)get_property(dn, "local-mac-address", NULL); + mac = get_property(dn, "local-mac-address", NULL); if (!mac) return -EIO; memcpy(addr.sa_data, mac, ETH_ALEN); diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c index b70bbd74897..d7b1d1882ca 100644 --- a/drivers/net/sungem.c +++ b/drivers/net/sungem.c @@ -2896,7 +2896,7 @@ static int __devinit gem_get_device_address(struct gem *gp) if (use_idprom) memcpy(dev->dev_addr, idprom->id_ethaddr, 6); #elif defined(CONFIG_PPC_PMAC) - unsigned char *addr; + const unsigned char *addr; addr = get_property(gp->of_node, "local-mac-address", NULL); if (addr == NULL) { -- cgit v1.2.3-70-g09d2 From 5c339e96a391476ebb7cc63d913445c8cee092ff Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Wed, 12 Jul 2006 15:41:30 +1000 Subject: [POWERPC] tmp_atmel: Constify & voidify get_property() Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. tpm_atmel changes Signed-off-by: Jeremy Kerr Signed-off-by: Paul Mackerras --- drivers/char/tpm/tpm_atmel.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/char/tpm/tpm_atmel.h b/drivers/char/tpm/tpm_atmel.h index 2e68eeb8a2c..aefd683c60b 100644 --- a/drivers/char/tpm/tpm_atmel.h +++ b/drivers/char/tpm/tpm_atmel.h @@ -37,7 +37,7 @@ static void __iomem * atmel_get_base_addr(unsigned long *base, int *region_size) { struct device_node *dn; unsigned long address, size; - unsigned int *reg; + const unsigned int *reg; int reglen; int naddrc; int nsizec; @@ -52,7 +52,7 @@ static void __iomem * atmel_get_base_addr(unsigned long *base, int *region_size) return NULL; } - reg = (unsigned int *) get_property(dn, "reg", ®len); + reg = get_property(dn, "reg", ®len); naddrc = prom_n_addr_cells(dn); nsizec = prom_n_size_cells(dn); -- cgit v1.2.3-70-g09d2 From af5f92d881d783b47d1f993ddffa2bce8b2993fe Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Wed, 12 Jul 2006 15:41:41 +1000 Subject: [POWERPC] sata_svw: Constify & voidify get_property() Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. sata_svw changes Signed-off-by: Jeremy Kerr Signed-off-by: Paul Mackerras --- drivers/scsi/sata_svw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/sata_svw.c b/drivers/scsi/sata_svw.c index 7d0858095e1..6b70c3c76df 100644 --- a/drivers/scsi/sata_svw.c +++ b/drivers/scsi/sata_svw.c @@ -268,7 +268,7 @@ static int k2_sata_proc_info(struct Scsi_Host *shost, char *page, char **start, /* Match it to a port node */ index = (ap == ap->host_set->ports[0]) ? 0 : 1; for (np = np->child; np != NULL; np = np->sibling) { - u32 *reg = (u32 *)get_property(np, "reg", NULL); + const u32 *reg = get_property(np, "reg", NULL); if (!reg) continue; if (index == *reg) -- cgit v1.2.3-70-g09d2 From cb18bd40030c879cd93fef02fd579f74dbab473d Mon Sep 17 00:00:00 2001 From: Mike Kravetz Date: Thu, 20 Jul 2006 23:39:51 -0700 Subject: [POWERPC] Instrument Hypervisor Calls: merge headers Move all the Hypervisor call definitions to to a single header file. Signed-off-by: Mike Kravetz Signed-off-by: Paul Mackerras --- drivers/net/ibmveth.h | 10 ---------- include/asm-powerpc/hvcall.h | 8 ++++++++ 2 files changed, 8 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ibmveth.h b/drivers/net/ibmveth.h index 8385bf83650..149191cef2f 100644 --- a/drivers/net/ibmveth.h +++ b/drivers/net/ibmveth.h @@ -41,16 +41,6 @@ #define IbmVethMcastRemoveFilter 0x2UL #define IbmVethMcastClearFilterTable 0x3UL -/* hcall numbers */ -#define H_VIO_SIGNAL 0x104 -#define H_REGISTER_LOGICAL_LAN 0x114 -#define H_FREE_LOGICAL_LAN 0x118 -#define H_ADD_LOGICAL_LAN_BUFFER 0x11C -#define H_SEND_LOGICAL_LAN 0x120 -#define H_MULTICAST_CTRL 0x130 -#define H_CHANGE_LOGICAL_LAN_MAC 0x14C -#define H_FREE_LOGICAL_LAN_BUFFER 0x1D4 - /* hcall macros */ #define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \ plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac) diff --git a/include/asm-powerpc/hvcall.h b/include/asm-powerpc/hvcall.h index 0d3c4e85711..f07ae50cbc2 100644 --- a/include/asm-powerpc/hvcall.h +++ b/include/asm-powerpc/hvcall.h @@ -164,9 +164,15 @@ #define H_VIO_SIGNAL 0x104 #define H_SEND_CRQ 0x108 #define H_COPY_RDMA 0x110 +#define H_REGISTER_LOGICAL_LAN 0x114 +#define H_FREE_LOGICAL_LAN 0x118 +#define H_ADD_LOGICAL_LAN_BUFFER 0x11C +#define H_SEND_LOGICAL_LAN 0x120 +#define H_MULTICAST_CTRL 0x130 #define H_SET_XDABR 0x134 #define H_STUFF_TCE 0x138 #define H_PUT_TCE_INDIRECT 0x13C +#define H_CHANGE_LOGICAL_LAN_MAC 0x14C #define H_VTERM_PARTNER_INFO 0x150 #define H_REGISTER_VTERM 0x154 #define H_FREE_VTERM 0x158 @@ -196,11 +202,13 @@ #define H_GET_HCA_INFO 0x1B8 #define H_GET_PERF_COUNT 0x1BC #define H_MANAGE_TRACE 0x1C0 +#define H_FREE_LOGICAL_LAN_BUFFER 0x1D4 #define H_QUERY_INT_STATE 0x1E4 #define H_POLL_PENDING 0x1D8 #define H_JOIN 0x298 #define H_VASI_STATE 0x2A4 #define H_ENABLE_CRQ 0x2B0 +#define MAX_HCALL_OPCODES (H_ENABLE_CRQ >> 2) #ifndef __ASSEMBLY__ -- cgit v1.2.3-70-g09d2 From b9377ffc3a03cde558d76349a262a1adbb6d3112 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 19 Jul 2006 08:01:28 +1000 Subject: [POWERPC] clean up pseries hcall interfaces Our pseries hcall interfaces are out of control: plpar_hcall_norets plpar_hcall plpar_hcall_8arg_2ret plpar_hcall_4out plpar_hcall_7arg_7ret plpar_hcall_9arg_9ret Create 3 interfaces to cover all cases: plpar_hcall_norets: 7 arguments no returns plpar_hcall: 6 arguments 4 returns plpar_hcall9: 9 arguments 9 returns There are only 2 cases in the kernel that need plpar_hcall9, hopefully we can keep it that way. Pass in a buffer to stash return parameters so we avoid the &dummy1, &dummy2 madness. Signed-off-by: Anton Blanchard -- Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/lparcfg.c | 18 ++- arch/powerpc/kernel/rtas.c | 11 +- arch/powerpc/platforms/pseries/hvCall.S | 207 ++++-------------------- arch/powerpc/platforms/pseries/hvconsole.c | 5 +- arch/powerpc/platforms/pseries/lpar.c | 12 +- arch/powerpc/platforms/pseries/plpar_wrappers.h | 97 +++++++++-- arch/powerpc/platforms/pseries/xics.c | 22 +-- drivers/net/ibmveth.c | 3 +- drivers/net/ibmveth.h | 17 +- include/asm-powerpc/hvcall.h | 105 +++--------- 10 files changed, 184 insertions(+), 313 deletions(-) (limited to 'drivers') diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c index 3ce3a2d56fa..41c05dcd68f 100644 --- a/arch/powerpc/kernel/lparcfg.c +++ b/arch/powerpc/kernel/lparcfg.c @@ -182,8 +182,14 @@ static unsigned int h_get_ppp(unsigned long *entitled, unsigned long *resource) { unsigned long rc; - rc = plpar_hcall_4out(H_GET_PPP, 0, 0, 0, 0, entitled, unallocated, - aggregation, resource); + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_GET_PPP, retbuf); + + *entitled = retbuf[0]; + *unallocated = retbuf[1]; + *aggregation = retbuf[2]; + *resource = retbuf[3]; log_plpar_hcall_return(rc, "H_GET_PPP"); @@ -193,8 +199,12 @@ static unsigned int h_get_ppp(unsigned long *entitled, static void h_pic(unsigned long *pool_idle_time, unsigned long *num_procs) { unsigned long rc; - unsigned long dummy; - rc = plpar_hcall(H_PIC, 0, 0, 0, 0, pool_idle_time, num_procs, &dummy); + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_PIC, retbuf); + + *pool_idle_time = retbuf[0]; + *num_procs = retbuf[1]; if (rc != H_AUTHORITY) log_plpar_hcall_return(rc, "H_PIC"); diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 10e10be324c..14353b8789d 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -668,15 +668,14 @@ static int rtas_ibm_suspend_me(struct rtas_args *args) int i; long state; long rc; - unsigned long dummy; - + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; struct rtas_suspend_me_data data; /* Make sure the state is valid */ - rc = plpar_hcall(H_VASI_STATE, - ((u64)args->args[0] << 32) | args->args[1], - 0, 0, 0, - &state, &dummy, &dummy); + rc = plpar_hcall(H_VASI_STATE, retbuf, + ((u64)args->args[0] << 32) | args->args[1]); + + state = retbuf[0]; if (rc) { printk(KERN_ERR "rtas_ibm_suspend_me: vasi_state returned %ld\n",rc); diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S index c9ff547f9d2..9a99b056bd2 100644 --- a/arch/powerpc/platforms/pseries/hvCall.S +++ b/arch/powerpc/platforms/pseries/hvCall.S @@ -1,7 +1,6 @@ /* * This file contains the generic code to perform a call to the * pSeries LPAR hypervisor. - * NOTE: this file will go away when we move to inline this work. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -16,42 +15,6 @@ .text -/* long plpar_hcall(unsigned long opcode, R3 - unsigned long arg1, R4 - unsigned long arg2, R5 - unsigned long arg3, R6 - unsigned long arg4, R7 - unsigned long *out1, R8 - unsigned long *out2, R9 - unsigned long *out3); R10 - */ -_GLOBAL(plpar_hcall) - HMT_MEDIUM - - mfcr r0 - - std r8,STK_PARM(r8)(r1) /* Save out ptrs */ - std r9,STK_PARM(r9)(r1) - std r10,STK_PARM(r10)(r1) - - stw r0,8(r1) - - HVSC /* invoke the hypervisor */ - - lwz r0,8(r1) - - ld r8,STK_PARM(r8)(r1) /* Fetch r4-r6 ret args */ - ld r9,STK_PARM(r9)(r1) - ld r10,STK_PARM(r10)(r1) - std r4,0(r8) - std r5,0(r9) - std r6,0(r10) - - mtcrf 0xff,r0 - blr /* return r3 = status */ - - -/* Simple interface with no output values (other than status) */ _GLOBAL(plpar_hcall_norets) HMT_MEDIUM @@ -64,164 +27,64 @@ _GLOBAL(plpar_hcall_norets) mtcrf 0xff,r0 blr /* return r3 = status */ - -/* long plpar_hcall_8arg_2ret(unsigned long opcode, R3 - unsigned long arg1, R4 - unsigned long arg2, R5 - unsigned long arg3, R6 - unsigned long arg4, R7 - unsigned long arg5, R8 - unsigned long arg6, R9 - unsigned long arg7, R10 - unsigned long arg8, 112(R1) - unsigned long *out1); 120(R1) - */ -_GLOBAL(plpar_hcall_8arg_2ret) +_GLOBAL(plpar_hcall) HMT_MEDIUM mfcr r0 - ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */ stw r0,8(r1) - HVSC /* invoke the hypervisor */ - - lwz r0,8(r1) - ld r10,STK_PARM(r12)(r1) /* Fetch r4 ret arg */ - std r4,0(r10) - mtcrf 0xff,r0 - blr /* return r3 = status */ - - -/* long plpar_hcall_4out(unsigned long opcode, R3 - unsigned long arg1, R4 - unsigned long arg2, R5 - unsigned long arg3, R6 - unsigned long arg4, R7 - unsigned long *out1, R8 - unsigned long *out2, R9 - unsigned long *out3, R10 - unsigned long *out4); 112(R1) - */ -_GLOBAL(plpar_hcall_4out) - HMT_MEDIUM - - mfcr r0 - stw r0,8(r1) + std r4,STK_PARM(r4)(r1) /* Save ret buffer */ - std r8,STK_PARM(r8)(r1) /* Save out ptrs */ - std r9,STK_PARM(r9)(r1) - std r10,STK_PARM(r10)(r1) + mr r4,r5 + mr r5,r6 + mr r6,r7 + mr r7,r8 + mr r8,r9 + mr r9,r10 HVSC /* invoke the hypervisor */ - lwz r0,8(r1) - - ld r8,STK_PARM(r8)(r1) /* Fetch r4-r7 ret args */ - ld r9,STK_PARM(r9)(r1) - ld r10,STK_PARM(r10)(r1) - ld r11,STK_PARM(r11)(r1) - std r4,0(r8) - std r5,0(r9) - std r6,0(r10) - std r7,0(r11) - - mtcrf 0xff,r0 - blr /* return r3 = status */ - -/* plpar_hcall_7arg_7ret(unsigned long opcode, R3 - unsigned long arg1, R4 - unsigned long arg2, R5 - unsigned long arg3, R6 - unsigned long arg4, R7 - unsigned long arg5, R8 - unsigned long arg6, R9 - unsigned long arg7, R10 - unsigned long *out1, 112(R1) - unsigned long *out2, 110(R1) - unsigned long *out3, 108(R1) - unsigned long *out4, 106(R1) - unsigned long *out5, 104(R1) - unsigned long *out6, 102(R1) - unsigned long *out7); 100(R1) -*/ -_GLOBAL(plpar_hcall_7arg_7ret) - HMT_MEDIUM - - mfcr r0 - stw r0,8(r1) - - HVSC /* invoke the hypervisor */ + ld r12,STK_PARM(r4)(r1) + std r4, 0(r12) + std r5, 8(r12) + std r6, 16(r12) + std r7, 24(r12) lwz r0,8(r1) - - ld r11,STK_PARM(r11)(r1) /* Fetch r4 ret arg */ - std r4,0(r11) - ld r11,STK_PARM(r12)(r1) /* Fetch r5 ret arg */ - std r5,0(r11) - ld r11,STK_PARM(r13)(r1) /* Fetch r6 ret arg */ - std r6,0(r11) - ld r11,STK_PARM(r14)(r1) /* Fetch r7 ret arg */ - std r7,0(r11) - ld r11,STK_PARM(r15)(r1) /* Fetch r8 ret arg */ - std r8,0(r11) - ld r11,STK_PARM(r16)(r1) /* Fetch r9 ret arg */ - std r9,0(r11) - ld r11,STK_PARM(r17)(r1) /* Fetch r10 ret arg */ - std r10,0(r11) - mtcrf 0xff,r0 blr /* return r3 = status */ -/* plpar_hcall_9arg_9ret(unsigned long opcode, R3 - unsigned long arg1, R4 - unsigned long arg2, R5 - unsigned long arg3, R6 - unsigned long arg4, R7 - unsigned long arg5, R8 - unsigned long arg6, R9 - unsigned long arg7, R10 - unsigned long arg8, 112(R1) - unsigned long arg9, 110(R1) - unsigned long *out1, 108(R1) - unsigned long *out2, 106(R1) - unsigned long *out3, 104(R1) - unsigned long *out4, 102(R1) - unsigned long *out5, 100(R1) - unsigned long *out6, 98(R1) - unsigned long *out7); 96(R1) - unsigned long *out8, 94(R1) - unsigned long *out9, 92(R1) -*/ -_GLOBAL(plpar_hcall_9arg_9ret) +_GLOBAL(plpar_hcall9) HMT_MEDIUM mfcr r0 stw r0,8(r1) - ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */ - ld r12,STK_PARM(r12)(r1) /* put arg9 in R12 */ + std r4,STK_PARM(r4)(r1) /* Save ret buffer */ + + mr r4,r5 + mr r5,r6 + mr r6,r7 + mr r7,r8 + mr r8,r9 + mr r9,r10 + ld r10,STK_PARM(r11)(r1) /* put arg7 in R10 */ + ld r11,STK_PARM(r12)(r1) /* put arg8 in R11 */ + ld r12,STK_PARM(r13)(r1) /* put arg9 in R12 */ HVSC /* invoke the hypervisor */ - ld r0,STK_PARM(r13)(r1) /* Fetch r4 ret arg */ - stdx r4,r0,r0 - ld r0,STK_PARM(r14)(r1) /* Fetch r5 ret arg */ - stdx r5,r0,r0 - ld r0,STK_PARM(r15)(r1) /* Fetch r6 ret arg */ - stdx r6,r0,r0 - ld r0,STK_PARM(r16)(r1) /* Fetch r7 ret arg */ - stdx r7,r0,r0 - ld r0,STK_PARM(r17)(r1) /* Fetch r8 ret arg */ - stdx r8,r0,r0 - ld r0,STK_PARM(r18)(r1) /* Fetch r9 ret arg */ - stdx r9,r0,r0 - ld r0,STK_PARM(r19)(r1) /* Fetch r10 ret arg */ - stdx r10,r0,r0 - ld r0,STK_PARM(r20)(r1) /* Fetch r11 ret arg */ - stdx r11,r0,r0 - ld r0,STK_PARM(r21)(r1) /* Fetch r12 ret arg */ - stdx r12,r0,r0 + ld r12,STK_PARM(r4)(r1) + std r4, 0(r12) + std r5, 8(r12) + std r6, 16(r12) + std r7, 24(r12) + std r8, 32(r12) + std r9, 40(r12) + std r10,48(r12) + std r11,56(r12) + std r12,64(r12) lwz r0,8(r1) mtcrf 0xff,r0 diff --git a/arch/powerpc/platforms/pseries/hvconsole.c b/arch/powerpc/platforms/pseries/hvconsole.c index a72a987f1d4..3f6a89b0981 100644 --- a/arch/powerpc/platforms/pseries/hvconsole.c +++ b/arch/powerpc/platforms/pseries/hvconsole.c @@ -27,6 +27,7 @@ #include #include #include +#include "plpar_wrappers.h" /** * hvc_get_chars - retrieve characters from firmware for denoted vterm adatper @@ -40,9 +41,9 @@ int hvc_get_chars(uint32_t vtermno, char *buf, int count) { unsigned long got; - if (plpar_hcall(H_GET_TERM_CHAR, vtermno, 0, 0, 0, &got, - (unsigned long *)buf, (unsigned long *)buf+1) == H_SUCCESS) + if (plpar_get_term_char(vtermno, &got, buf) == H_SUCCESS) return got; + return 0; } diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 4cb7ff227f7..6cbf14266d5 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -48,13 +48,11 @@ #define DBG_LOW(fmt...) do { } while(0) #endif -/* in pSeries_hvCall.S */ +/* in hvCall.S */ EXPORT_SYMBOL(plpar_hcall); -EXPORT_SYMBOL(plpar_hcall_4out); +EXPORT_SYMBOL(plpar_hcall9); EXPORT_SYMBOL(plpar_hcall_norets); -EXPORT_SYMBOL(plpar_hcall_8arg_2ret); -EXPORT_SYMBOL(plpar_hcall_7arg_7ret); -EXPORT_SYMBOL(plpar_hcall_9arg_9ret); + extern void pSeries_find_serial_port(void); @@ -277,7 +275,6 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group, unsigned long flags; unsigned long slot; unsigned long hpte_v, hpte_r; - unsigned long dummy0, dummy1; if (!(vflags & HPTE_V_BOLTED)) DBG_LOW("hpte_insert(group=%lx, va=%016lx, pa=%016lx, " @@ -302,8 +299,7 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group, if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE)) hpte_r &= ~_PAGE_COHERENT; - lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, hpte_v, - hpte_r, &slot, &dummy0, &dummy1); + lpar_rc = plpar_pte_enter(flags, hpte_group, hpte_v, hpte_r, &slot); if (unlikely(lpar_rc == H_PTEG_FULL)) { if (!(vflags & HPTE_V_BOLTED)) DBG_LOW(" full\n"); diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h index 3bd1b3e0600..ebd15de7597 100644 --- a/arch/powerpc/platforms/pseries/plpar_wrappers.h +++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h @@ -5,20 +5,17 @@ static inline long poll_pending(void) { - unsigned long dummy; - return plpar_hcall(H_POLL_PENDING, 0, 0, 0, 0, &dummy, &dummy, &dummy); + return plpar_hcall_norets(H_POLL_PENDING); } static inline long prod_processor(void) { - plpar_hcall_norets(H_PROD); - return 0; + return plpar_hcall_norets(H_PROD); } static inline long cede_processor(void) { - plpar_hcall_norets(H_CEDE); - return 0; + return plpar_hcall_norets(H_CEDE); } static inline long vpa_call(unsigned long flags, unsigned long cpu, @@ -42,21 +39,47 @@ static inline long register_vpa(unsigned long cpu, unsigned long vpa) extern void vpa_init(int cpu); +static inline long plpar_pte_enter(unsigned long flags, + unsigned long hpte_group, unsigned long hpte_v, + unsigned long hpte_r, unsigned long *slot) +{ + long rc; + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_ENTER, retbuf, flags, hpte_group, hpte_v, hpte_r); + + *slot = retbuf[0]; + + return rc; +} + static inline long plpar_pte_remove(unsigned long flags, unsigned long ptex, unsigned long avpn, unsigned long *old_pteh_ret, unsigned long *old_ptel_ret) { - unsigned long dummy; - return plpar_hcall(H_REMOVE, flags, ptex, avpn, 0, old_pteh_ret, - old_ptel_ret, &dummy); + long rc; + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_REMOVE, retbuf, flags, ptex, avpn); + + *old_pteh_ret = retbuf[0]; + *old_ptel_ret = retbuf[1]; + + return rc; } static inline long plpar_pte_read(unsigned long flags, unsigned long ptex, unsigned long *old_pteh_ret, unsigned long *old_ptel_ret) { - unsigned long dummy; - return plpar_hcall(H_READ, flags, ptex, 0, 0, old_pteh_ret, - old_ptel_ret, &dummy); + long rc; + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_READ, retbuf, flags, ptex); + + *old_pteh_ret = retbuf[0]; + *old_ptel_ret = retbuf[1]; + + return rc; } static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex, @@ -68,9 +91,14 @@ static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex, static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba, unsigned long *tce_ret) { - unsigned long dummy; - return plpar_hcall(H_GET_TCE, liobn, ioba, 0, 0, tce_ret, &dummy, - &dummy); + long rc; + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_GET_TCE, retbuf, liobn, ioba); + + *tce_ret = retbuf[0]; + + return rc; } static inline long plpar_tce_put(unsigned long liobn, unsigned long ioba, @@ -94,9 +122,17 @@ static inline long plpar_tce_stuff(unsigned long liobn, unsigned long ioba, static inline long plpar_get_term_char(unsigned long termno, unsigned long *len_ret, char *buf_ret) { + long rc; + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; unsigned long *lbuf = (unsigned long *)buf_ret; /* TODO: alignment? */ - return plpar_hcall(H_GET_TERM_CHAR, termno, 0, 0, 0, len_ret, - lbuf + 0, lbuf + 1); + + rc = plpar_hcall(H_GET_TERM_CHAR, retbuf, termno); + + *len_ret = retbuf[0]; + lbuf[0] = retbuf[1]; + lbuf[1] = retbuf[2]; + + return rc; } static inline long plpar_put_term_char(unsigned long termno, unsigned long len, @@ -107,4 +143,31 @@ static inline long plpar_put_term_char(unsigned long termno, unsigned long len, lbuf[1]); } +static inline long plpar_eoi(unsigned long xirr) +{ + return plpar_hcall_norets(H_EOI, xirr); +} + +static inline long plpar_cppr(unsigned long cppr) +{ + return plpar_hcall_norets(H_CPPR, cppr); +} + +static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr) +{ + return plpar_hcall_norets(H_IPI, servernum, mfrr); +} + +static inline long plpar_xirr(unsigned long *xirr_ret) +{ + long rc; + unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; + + rc = plpar_hcall(H_XIRR, retbuf); + + *xirr_ret = retbuf[0]; + + return rc; +} + #endif /* _PSERIES_PLPAR_WRAPPERS_H */ diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 1eab4688be1..c88ec63129f 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -34,6 +34,7 @@ #include #include "xics.h" +#include "plpar_wrappers.h" #define XICS_IPI 2 #define XICS_IRQ_SPURIOUS 0 @@ -110,27 +111,6 @@ static inline void direct_qirr_info(int n_cpu, u8 value) /* LPAR low level accessors */ -static inline long plpar_eoi(unsigned long xirr) -{ - return plpar_hcall_norets(H_EOI, xirr); -} - -static inline long plpar_cppr(unsigned long cppr) -{ - return plpar_hcall_norets(H_CPPR, cppr); -} - -static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr) -{ - return plpar_hcall_norets(H_IPI, servernum, mfrr); -} - -static inline long plpar_xirr(unsigned long *xirr_ret) -{ - unsigned long dummy; - return plpar_hcall(H_XIRR, 0, 0, 0, 0, xirr_ret, &dummy, &dummy); -} - static inline unsigned int lpar_xirr_info_get(int n_cpu) { unsigned long lpar_rc; diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c index 0464e78f733..e56eac88b80 100644 --- a/drivers/net/ibmveth.c +++ b/drivers/net/ibmveth.c @@ -702,7 +702,8 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev) desc[3].desc, desc[4].desc, desc[5].desc, - correlator); + correlator, + &correlator); } while ((lpar_rc == H_BUSY) && (retry_count--)); if(lpar_rc != H_SUCCESS && lpar_rc != H_DROPPED) { diff --git a/drivers/net/ibmveth.h b/drivers/net/ibmveth.h index 149191cef2f..f5b25bff154 100644 --- a/drivers/net/ibmveth.h +++ b/drivers/net/ibmveth.h @@ -51,8 +51,21 @@ #define h_add_logical_lan_buffer(ua, buf) \ plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf) -#define h_send_logical_lan(ua, buf1, buf2, buf3, buf4, buf5, buf6, correlator) \ - plpar_hcall_8arg_2ret(H_SEND_LOGICAL_LAN, ua, buf1, buf2, buf3, buf4, buf5, buf6, correlator, &correlator) +static inline long h_send_logical_lan(unsigned long unit_address, + unsigned long desc1, unsigned long desc2, unsigned long desc3, + unsigned long desc4, unsigned long desc5, unsigned long desc6, + unsigned long corellator_in, unsigned long *corellator_out) +{ + long rc; + unsigned long retbuf[PLPAR_HCALL9_BUFSIZE]; + + rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1, + desc2, desc3, desc4, desc5, desc6, corellator_in); + + *corellator_out = retbuf[0]; + + return rc; +} #define h_multicast_ctrl(ua, cmd, mac) \ plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac) diff --git a/include/asm-powerpc/hvcall.h b/include/asm-powerpc/hvcall.h index f07ae50cbc2..63ce1ac8c1f 100644 --- a/include/asm-powerpc/hvcall.h +++ b/include/asm-powerpc/hvcall.h @@ -212,94 +212,39 @@ #ifndef __ASSEMBLY__ -/* plpar_hcall() -- Generic call interface using above opcodes +/** + * plpar_hcall_norets: - Make a pseries hypervisor call with no return arguments + * @opcode: The hypervisor call to make. * - * The actual call interface is a hypervisor call instruction with - * the opcode in R3 and input args in R4-R7. - * Status is returned in R3 with variable output values in R4-R11. - * Only H_PTE_READ with H_READ_4 uses R6-R11 so we ignore it for now - * and return only two out args which MUST ALWAYS BE PROVIDED. - */ -long plpar_hcall(unsigned long opcode, - unsigned long arg1, - unsigned long arg2, - unsigned long arg3, - unsigned long arg4, - unsigned long *out1, - unsigned long *out2, - unsigned long *out3); - -/* Same as plpar_hcall but for those opcodes that return no values - * other than status. Slightly more efficient. + * This call supports up to 7 arguments and only returns the status of + * the hcall. Use this version where possible, its slightly faster than + * the other plpar_hcalls. */ long plpar_hcall_norets(unsigned long opcode, ...); -/* - * Special hcall interface for ibmveth support. - * Takes 8 input parms. Returns a rc and stores the - * R4 return value in *out1. - */ -long plpar_hcall_8arg_2ret(unsigned long opcode, - unsigned long arg1, - unsigned long arg2, - unsigned long arg3, - unsigned long arg4, - unsigned long arg5, - unsigned long arg6, - unsigned long arg7, - unsigned long arg8, - unsigned long *out1); - -/* plpar_hcall_4out() +/** + * plpar_hcall: - Make a pseries hypervisor call + * @opcode: The hypervisor call to make. + * @retbuf: Buffer to store up to 4 return arguments in. * - * same as plpar_hcall except with 4 output arguments. + * This call supports up to 6 arguments and 4 return arguments. Use + * PLPAR_HCALL_BUFSIZE to size the return argument buffer. * + * Used for all but the craziest of phyp interfaces (see plpar_hcall9) */ -long plpar_hcall_4out(unsigned long opcode, - unsigned long arg1, - unsigned long arg2, - unsigned long arg3, - unsigned long arg4, - unsigned long *out1, - unsigned long *out2, - unsigned long *out3, - unsigned long *out4); +#define PLPAR_HCALL_BUFSIZE 4 +long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...); -long plpar_hcall_7arg_7ret(unsigned long opcode, - unsigned long arg1, - unsigned long arg2, - unsigned long arg3, - unsigned long arg4, - unsigned long arg5, - unsigned long arg6, - unsigned long arg7, - unsigned long *out1, - unsigned long *out2, - unsigned long *out3, - unsigned long *out4, - unsigned long *out5, - unsigned long *out6, - unsigned long *out7); - -long plpar_hcall_9arg_9ret(unsigned long opcode, - unsigned long arg1, - unsigned long arg2, - unsigned long arg3, - unsigned long arg4, - unsigned long arg5, - unsigned long arg6, - unsigned long arg7, - unsigned long arg8, - unsigned long arg9, - unsigned long *out1, - unsigned long *out2, - unsigned long *out3, - unsigned long *out4, - unsigned long *out5, - unsigned long *out6, - unsigned long *out7, - unsigned long *out8, - unsigned long *out9); +/** + * plpar_hcall9: - Make a pseries hypervisor call with up to 9 return arguments + * @opcode: The hypervisor call to make. + * @retbuf: Buffer to store up to 9 return arguments in. + * + * This call supports up to 9 arguments and 9 return arguments. Use + * PLPAR_HCALL9_BUFSIZE to size the return argument buffer. + */ +#define PLPAR_HCALL9_BUFSIZE 9 +long plpar_hcall9(unsigned long opcode, unsigned long *retbuf, ...); #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ -- cgit v1.2.3-70-g09d2 From cd878479792cc1e4bc9d62ed0ef2c4454743848c Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Fri, 11 Aug 2006 17:59:28 -0400 Subject: [CPUFREQ] Fix typo. Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index b3df613ae4e..d35a9f06ab7 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -32,7 +32,7 @@ #define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_CORE, "cpufreq-core", msg) /** - * The "cpufreq driver" - the arch- or hardware-dependend low + * The "cpufreq driver" - the arch- or hardware-dependent low * level driver of CPUFreq support, and its spinlock. This lock * also protects the cpufreq_cpu_data array. */ -- cgit v1.2.3-70-g09d2 From 1ce28d6b19112a7c76af8e971e2de3109d19a943 Mon Sep 17 00:00:00 2001 From: Alexey Starikovskiy Date: Mon, 31 Jul 2006 22:25:20 +0400 Subject: [CPUFREQ][1/2] ondemand: updated tune for hardware coordination Try to make dbs_check_cpu() call on all CPUs at the same jiffy. This will help when multiple cores share P-states via Hardware Coordination. Signed-off-by: Venkatesh Pallipadi Signed-off-by: Alexey Starikovskiy Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq_ondemand.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c index 52cf1f02182..f507a869acb 100644 --- a/drivers/cpufreq/cpufreq_ondemand.c +++ b/drivers/cpufreq/cpufreq_ondemand.c @@ -305,6 +305,9 @@ static void do_dbs_timer(void *data) { unsigned int cpu = smp_processor_id(); struct cpu_dbs_info_s *dbs_info = &per_cpu(cpu_dbs_info, cpu); + /* We want all CPUs to do sampling nearly on same jiffy */ + int delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate); + delay -= jiffies % delay; if (!dbs_info->enable) return; @@ -312,18 +315,18 @@ static void do_dbs_timer(void *data) lock_cpu_hotplug(); dbs_check_cpu(dbs_info); unlock_cpu_hotplug(); - queue_delayed_work_on(cpu, kondemand_wq, &dbs_info->work, - usecs_to_jiffies(dbs_tuners_ins.sampling_rate)); + queue_delayed_work_on(cpu, kondemand_wq, &dbs_info->work, delay); } static inline void dbs_timer_init(unsigned int cpu) { struct cpu_dbs_info_s *dbs_info = &per_cpu(cpu_dbs_info, cpu); + /* We want all CPUs to do sampling nearly on same jiffy */ + int delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate); + delay -= jiffies % delay; INIT_WORK(&dbs_info->work, do_dbs_timer, 0); - queue_delayed_work_on(cpu, kondemand_wq, &dbs_info->work, - usecs_to_jiffies(dbs_tuners_ins.sampling_rate)); - return; + queue_delayed_work_on(cpu, kondemand_wq, &dbs_info->work, delay); } static inline void dbs_timer_exit(struct cpu_dbs_info_s *dbs_info) -- cgit v1.2.3-70-g09d2 From 05ca0350e8caa91a5ec9961c585c98005b6934ea Mon Sep 17 00:00:00 2001 From: Alexey Starikovskiy Date: Mon, 31 Jul 2006 22:28:12 +0400 Subject: [CPUFREQ][2/2] ondemand: updated add powersave_bias tunable ondemand selects the minimum frequency that can retire a workload with negligible idle time -- ideally resulting in the highest performance/power efficiency with negligible performance impact. But on some systems and some workloads, this algorithm is more performance biased than necessary, and de-tuning it a bit to allow some performance impact can save measurable power. This patch adds a "powersave_bias" tunable to ondemand to allow it to reduce its target frequency by a specified percent. By default, the powersave_bias is 0 and has no effect. powersave_bias is in units of 0.1%, so it has an effective range of 1 through 1000, resulting in 0.1% to 100% impact. In practice, users will not be able to detect a difference between 0.1% increments, but 1.0% increments turned out to be too large. Also, the max value of 1000 (100%) would simply peg the system in its deepest power saving P-state, unless the processor really has a hardware P-state at 0Hz:-) For example, If ondemand requests 2.0GHz based on utilization, and powersave_bias=100, this code will knock 10% off the target and seek a target of 1.8GHz instead of 2.0GHz until the next sampling. If 1.8 is an exact match with an hardware frequency we use it, otherwise we average our time between the frequency next higher than 1.8 and next lower than 1.8. Note that a user or administrative program can change powersave_bias at run-time depending on how they expect the system to be used. Signed-off-by: Venkatesh Pallipadi Signed-off-by: Alexey Starikovskiy Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq_ondemand.c | 157 +++++++++++++++++++++++++++++++++---- 1 file changed, 140 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c index f507a869acb..34874c2f188 100644 --- a/drivers/cpufreq/cpufreq_ondemand.c +++ b/drivers/cpufreq/cpufreq_ondemand.c @@ -55,6 +55,10 @@ struct cpu_dbs_info_s { struct cpufreq_policy *cur_policy; struct work_struct work; unsigned int enable; + struct cpufreq_frequency_table *freq_table; + unsigned int freq_lo; + unsigned int freq_lo_jiffies; + unsigned int freq_hi_jiffies; }; static DEFINE_PER_CPU(struct cpu_dbs_info_s, cpu_dbs_info); @@ -72,15 +76,15 @@ static DEFINE_MUTEX(dbs_mutex); static struct workqueue_struct *kondemand_wq; -struct dbs_tuners { +static struct dbs_tuners { unsigned int sampling_rate; unsigned int up_threshold; unsigned int ignore_nice; -}; - -static struct dbs_tuners dbs_tuners_ins = { + unsigned int powersave_bias; +} dbs_tuners_ins = { .up_threshold = DEF_FREQUENCY_UP_THRESHOLD, .ignore_nice = 0, + .powersave_bias = 0, }; static inline cputime64_t get_cpu_idle_time(unsigned int cpu) @@ -96,6 +100,69 @@ static inline cputime64_t get_cpu_idle_time(unsigned int cpu) return retval; } +/* + * Find right freq to be set now with powersave_bias on. + * Returns the freq_hi to be used right now and will set freq_hi_jiffies, + * freq_lo, and freq_lo_jiffies in percpu area for averaging freqs. + */ +unsigned int powersave_bias_target(struct cpufreq_policy *policy, + unsigned int freq_next, unsigned int relation) +{ + unsigned int freq_req, freq_reduc, freq_avg; + unsigned int freq_hi, freq_lo; + unsigned int index = 0; + unsigned int jiffies_total, jiffies_hi, jiffies_lo; + struct cpu_dbs_info_s *dbs_info = &per_cpu(cpu_dbs_info, policy->cpu); + + if (!dbs_info->freq_table) { + dbs_info->freq_lo = 0; + dbs_info->freq_lo_jiffies = 0; + return freq_next; + } + + cpufreq_frequency_table_target(policy, dbs_info->freq_table, freq_next, + relation, &index); + freq_req = dbs_info->freq_table[index].frequency; + freq_reduc = freq_req * dbs_tuners_ins.powersave_bias / 1000; + freq_avg = freq_req - freq_reduc; + + /* Find freq bounds for freq_avg in freq_table */ + index = 0; + cpufreq_frequency_table_target(policy, dbs_info->freq_table, freq_avg, + CPUFREQ_RELATION_H, &index); + freq_lo = dbs_info->freq_table[index].frequency; + index = 0; + cpufreq_frequency_table_target(policy, dbs_info->freq_table, freq_avg, + CPUFREQ_RELATION_L, &index); + freq_hi = dbs_info->freq_table[index].frequency; + + /* Find out how long we have to be in hi and lo freqs */ + if (freq_hi == freq_lo) { + dbs_info->freq_lo = 0; + dbs_info->freq_lo_jiffies = 0; + return freq_lo; + } + jiffies_total = usecs_to_jiffies(dbs_tuners_ins.sampling_rate); + jiffies_hi = (freq_avg - freq_lo) * jiffies_total; + jiffies_hi += ((freq_hi - freq_lo) / 2); + jiffies_hi /= (freq_hi - freq_lo); + jiffies_lo = jiffies_total - jiffies_hi; + dbs_info->freq_lo = freq_lo; + dbs_info->freq_lo_jiffies = jiffies_lo; + dbs_info->freq_hi_jiffies = jiffies_hi; + return freq_hi; +} + +static void ondemand_powersave_bias_init(void) +{ + int i; + for_each_online_cpu(i) { + struct cpu_dbs_info_s *dbs_info = &per_cpu(cpu_dbs_info, i); + dbs_info->freq_table = cpufreq_frequency_get_table(i); + dbs_info->freq_lo = 0; + } +} + /************************** sysfs interface ************************/ static ssize_t show_sampling_rate_max(struct cpufreq_policy *policy, char *buf) { @@ -124,6 +191,7 @@ static ssize_t show_##file_name \ show_one(sampling_rate, sampling_rate); show_one(up_threshold, up_threshold); show_one(ignore_nice_load, ignore_nice); +show_one(powersave_bias, powersave_bias); static ssize_t store_sampling_rate(struct cpufreq_policy *unused, const char *buf, size_t count) @@ -198,6 +266,27 @@ static ssize_t store_ignore_nice_load(struct cpufreq_policy *policy, return count; } +static ssize_t store_powersave_bias(struct cpufreq_policy *unused, + const char *buf, size_t count) +{ + unsigned int input; + int ret; + ret = sscanf(buf, "%u", &input); + + if (ret != 1) + return -EINVAL; + + if (input > 1000) + input = 1000; + + mutex_lock(&dbs_mutex); + dbs_tuners_ins.powersave_bias = input; + ondemand_powersave_bias_init(); + mutex_unlock(&dbs_mutex); + + return count; +} + #define define_one_rw(_name) \ static struct freq_attr _name = \ __ATTR(_name, 0644, show_##_name, store_##_name) @@ -205,6 +294,7 @@ __ATTR(_name, 0644, show_##_name, store_##_name) define_one_rw(sampling_rate); define_one_rw(up_threshold); define_one_rw(ignore_nice_load); +define_one_rw(powersave_bias); static struct attribute * dbs_attributes[] = { &sampling_rate_max.attr, @@ -212,6 +302,7 @@ static struct attribute * dbs_attributes[] = { &sampling_rate.attr, &up_threshold.attr, &ignore_nice_load.attr, + &powersave_bias.attr, NULL }; @@ -234,6 +325,7 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info) if (!this_dbs_info->enable) return; + this_dbs_info->freq_lo = 0; policy = this_dbs_info->cur_policy; cur_jiffies = jiffies64_to_cputime64(get_jiffies_64()); total_ticks = (unsigned int) cputime64_sub(cur_jiffies, @@ -274,11 +366,18 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info) /* Check for frequency increase */ if (load > dbs_tuners_ins.up_threshold) { /* if we are already at full speed then break out early */ - if (policy->cur == policy->max) - return; - - __cpufreq_driver_target(policy, policy->max, - CPUFREQ_RELATION_H); + if (!dbs_tuners_ins.powersave_bias) { + if (policy->cur == policy->max) + return; + + __cpufreq_driver_target(policy, policy->max, + CPUFREQ_RELATION_H); + } else { + int freq = powersave_bias_target(policy, policy->max, + CPUFREQ_RELATION_H); + __cpufreq_driver_target(policy, freq, + CPUFREQ_RELATION_L); + } return; } @@ -293,14 +392,23 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info) * policy. To be safe, we focus 10 points under the threshold. */ if (load < (dbs_tuners_ins.up_threshold - 10)) { - unsigned int freq_next; - freq_next = (policy->cur * load) / + unsigned int freq_next = (policy->cur * load) / (dbs_tuners_ins.up_threshold - 10); - - __cpufreq_driver_target(policy, freq_next, CPUFREQ_RELATION_L); + if (!dbs_tuners_ins.powersave_bias) { + __cpufreq_driver_target(policy, freq_next, + CPUFREQ_RELATION_L); + } else { + int freq = powersave_bias_target(policy, freq_next, + CPUFREQ_RELATION_L); + __cpufreq_driver_target(policy, freq, + CPUFREQ_RELATION_L); + } } } +/* Sampling types */ +enum {DBS_NORMAL_SAMPLE, DBS_SUB_SAMPLE}; + static void do_dbs_timer(void *data) { unsigned int cpu = smp_processor_id(); @@ -311,10 +419,24 @@ static void do_dbs_timer(void *data) if (!dbs_info->enable) return; - - lock_cpu_hotplug(); - dbs_check_cpu(dbs_info); - unlock_cpu_hotplug(); + /* Common NORMAL_SAMPLE setup */ + INIT_WORK(&dbs_info->work, do_dbs_timer, (void *)DBS_NORMAL_SAMPLE); + if (!dbs_tuners_ins.powersave_bias || + (unsigned long) data == DBS_NORMAL_SAMPLE) { + lock_cpu_hotplug(); + dbs_check_cpu(dbs_info); + unlock_cpu_hotplug(); + if (dbs_info->freq_lo) { + /* Setup timer for SUB_SAMPLE */ + INIT_WORK(&dbs_info->work, do_dbs_timer, + (void *)DBS_SUB_SAMPLE); + delay = dbs_info->freq_hi_jiffies; + } + } else { + __cpufreq_driver_target(dbs_info->cur_policy, + dbs_info->freq_lo, + CPUFREQ_RELATION_H); + } queue_delayed_work_on(cpu, kondemand_wq, &dbs_info->work, delay); } @@ -325,6 +447,7 @@ static inline void dbs_timer_init(unsigned int cpu) int delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate); delay -= jiffies % delay; + ondemand_powersave_bias_init(); INIT_WORK(&dbs_info->work, do_dbs_timer, 0); queue_delayed_work_on(cpu, kondemand_wq, &dbs_info->work, delay); } -- cgit v1.2.3-70-g09d2 From e7745d4e0299a3460128917ceb6b6a807fa7f9e8 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Fri, 11 Aug 2006 18:02:27 -0400 Subject: [AGPGART] Const'ify the agpgart driver version. Signed-off-by: Dave Jones --- drivers/char/agp/backend.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c index 509adc40325..d59e037ddd1 100644 --- a/drivers/char/agp/backend.c +++ b/drivers/char/agp/backend.c @@ -44,7 +44,7 @@ * past 0.99 at all due to some boolean logic error. */ #define AGPGART_VERSION_MAJOR 0 #define AGPGART_VERSION_MINOR 101 -static struct agp_version agp_current_version = +static const struct agp_version agp_current_version = { .major = AGPGART_VERSION_MAJOR, .minor = AGPGART_VERSION_MINOR, -- cgit v1.2.3-70-g09d2 From 71565619af84a15d0abef6f0d6704e6472cd87c1 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Sat, 12 Aug 2006 01:59:50 +0400 Subject: [AGPGART] CONFIG_PM=n slim: drivers/char/agp/efficeon-agp.c Signed-off-by: Alexey Dobriyan Signed-off-by: Dave Jones --- drivers/char/agp/efficeon-agp.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/char/agp/efficeon-agp.c b/drivers/char/agp/efficeon-agp.c index b788b0a3bbf..30f730ff81c 100644 --- a/drivers/char/agp/efficeon-agp.c +++ b/drivers/char/agp/efficeon-agp.c @@ -337,13 +337,6 @@ static struct agp_bridge_driver efficeon_driver = { .agp_destroy_page = agp_generic_destroy_page, }; - -static int agp_efficeon_resume(struct pci_dev *pdev) -{ - printk(KERN_DEBUG PFX "agp_efficeon_resume()\n"); - return efficeon_configure(); -} - static int __devinit agp_efficeon_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { @@ -414,11 +407,18 @@ static void __devexit agp_efficeon_remove(struct pci_dev *pdev) agp_put_bridge(bridge); } +#ifdef CONFIG_PM static int agp_efficeon_suspend(struct pci_dev *dev, pm_message_t state) { return 0; } +static int agp_efficeon_resume(struct pci_dev *pdev) +{ + printk(KERN_DEBUG PFX "agp_efficeon_resume()\n"); + return efficeon_configure(); +} +#endif static struct pci_device_id agp_efficeon_pci_table[] = { { @@ -439,8 +439,10 @@ static struct pci_driver agp_efficeon_pci_driver = { .id_table = agp_efficeon_pci_table, .probe = agp_efficeon_probe, .remove = agp_efficeon_remove, +#ifdef CONFIG_PM .suspend = agp_efficeon_suspend, .resume = agp_efficeon_resume, +#endif }; static int __init agp_efficeon_init(void) -- cgit v1.2.3-70-g09d2 From 85be7d60595b4803731cec158b0023bc050fdd14 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Sat, 12 Aug 2006 02:02:02 +0400 Subject: [AGPGART] CONFIG_PM=n slim: drivers/char/agp/intel-agp.c Signed-off-by: Alexey Dobriyan Signed-off-by: Dave Jones --- drivers/char/agp/intel-agp.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index 61ac3809f99..42a1cb87199 100644 --- a/drivers/char/agp/intel-agp.c +++ b/drivers/char/agp/intel-agp.c @@ -1766,6 +1766,7 @@ static void __devexit agp_intel_remove(struct pci_dev *pdev) agp_put_bridge(bridge); } +#ifdef CONFIG_PM static int agp_intel_resume(struct pci_dev *pdev) { struct agp_bridge_data *bridge = pci_get_drvdata(pdev); @@ -1789,6 +1790,7 @@ static int agp_intel_resume(struct pci_dev *pdev) return 0; } +#endif static struct pci_device_id agp_intel_pci_table[] = { #define ID(x) \ @@ -1835,7 +1837,9 @@ static struct pci_driver agp_intel_pci_driver = { .id_table = agp_intel_pci_table, .probe = agp_intel_probe, .remove = __devexit_p(agp_intel_remove), +#ifdef CONFIG_PM .resume = agp_intel_resume, +#endif }; static int __init agp_intel_init(void) -- cgit v1.2.3-70-g09d2 From b53e674a707cf77e76339852abdc063696679261 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Fri, 11 Aug 2006 18:13:41 -0400 Subject: [AGPGART] const'ify VIA AGP PCI table. Signed-off-by: Dave Jones --- drivers/char/agp/via-agp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/char/agp/via-agp.c b/drivers/char/agp/via-agp.c index b8ec25d1747..c149ac9ce9a 100644 --- a/drivers/char/agp/via-agp.c +++ b/drivers/char/agp/via-agp.c @@ -9,7 +9,7 @@ #include #include "agp.h" -static struct pci_device_id agp_via_pci_table[]; +static const struct pci_device_id agp_via_pci_table[]; #define VIA_GARTCTRL 0x80 #define VIA_APSIZE 0x84 @@ -485,7 +485,7 @@ static int agp_via_resume(struct pci_dev *pdev) #endif /* CONFIG_PM */ /* must be the same order as name table above */ -static struct pci_device_id agp_via_pci_table[] = { +static const struct pci_device_id agp_via_pci_table[] = { #define ID(x) \ { \ .class = (PCI_CLASS_BRIDGE_HOST << 8), \ -- cgit v1.2.3-70-g09d2 From b5ecf60fe6b18de0bc59d336d444835d4ef835ed Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sun, 13 Aug 2006 23:00:08 +0200 Subject: [CPUFREQ] make drivers/cpufreq/cpufreq_ondemand.c:powersave_bias_target() static This patch makes the needlessly global powersave_bias_target() static. Signed-off-by: Adrian Bunk Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq_ondemand.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c index 34874c2f188..5ca2fd5d1ed 100644 --- a/drivers/cpufreq/cpufreq_ondemand.c +++ b/drivers/cpufreq/cpufreq_ondemand.c @@ -105,8 +105,9 @@ static inline cputime64_t get_cpu_idle_time(unsigned int cpu) * Returns the freq_hi to be used right now and will set freq_hi_jiffies, * freq_lo, and freq_lo_jiffies in percpu area for averaging freqs. */ -unsigned int powersave_bias_target(struct cpufreq_policy *policy, - unsigned int freq_next, unsigned int relation) +static unsigned int powersave_bias_target(struct cpufreq_policy *policy, + unsigned int freq_next, + unsigned int relation) { unsigned int freq_req, freq_reduc, freq_avg; unsigned int freq_hi, freq_lo; -- cgit v1.2.3-70-g09d2 From c4e6952ffd71b263a64d1a9d79812446130560a5 Mon Sep 17 00:00:00 2001 From: Takashi YOSHI Date: Mon, 14 Aug 2006 19:48:30 -0500 Subject: [PATCH] MTD: Add Macronix MX29F040 to JEDEC Signed-off-by: Takashi YOSHII Signed-off-by: Josh Boyer --- drivers/mtd/chips/jedec_probe.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c index 8f39d0a3143..1154dac715a 100644 --- a/drivers/mtd/chips/jedec_probe.c +++ b/drivers/mtd/chips/jedec_probe.c @@ -111,6 +111,7 @@ #define MX29LV040C 0x004F #define MX29LV160T 0x22C4 #define MX29LV160B 0x2249 +#define MX29F040 0x00A4 #define MX29F016 0x00AD #define MX29F002T 0x00B0 #define MX29F004T 0x0045 @@ -1171,6 +1172,19 @@ static const struct amd_flash_info jedec_table[] = { ERASEINFO(0x10000,31) } }, { + .mfr_id = MANUFACTURER_MACRONIX, + .dev_id = MX29F040, + .name = "Macronix MX29F040", + .uaddr = { + [0] = MTD_UADDR_0x0555_0x02AA /* x8 */ + }, + .DevSize = SIZE_512KiB, + .CmdSet = P_ID_AMD_STD, + .NumEraseRegions= 1, + .regions = { + ERASEINFO(0x10000,8), + } + }, { .mfr_id = MANUFACTURER_MACRONIX, .dev_id = MX29F016, .name = "Macronix MX29F016", -- cgit v1.2.3-70-g09d2 From 79b9cd586f534f3f40ee66b6c27732149a5915ad Mon Sep 17 00:00:00 2001 From: Takashi YOSHII Date: Tue, 15 Aug 2006 07:26:32 -0500 Subject: [PATCH] [MTD] Maps: Add dependency on alternate probe methods to physmap map/physmap.c tries to probe "cfi_probe", "jedec_probe" and "map_rom", but map/Kconfig says it depends on MTD_CFI only. This patch adds MTD_JEDECPROBE and MTD_ROM to the dependency condition. Signed-off-by: Takashi YOSHII Signed-off-by: Josh Boyer --- drivers/mtd/maps/Kconfig | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 83d0b2a5252..64d1b6a6c92 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -13,13 +13,13 @@ config MTD_COMPLEX_MAPPINGS config MTD_PHYSMAP tristate "CFI Flash device in physical memory map" - depends on MTD_CFI + depends on MTD_CFI || MTD_JEDECPROBE || MTD_ROM help - This provides a 'mapping' driver which allows the CFI probe and - command set driver code to communicate with flash chips which - are mapped physically into the CPU's memory. You will need to - configure the physical address and size of the flash chips on - your particular board as well as the bus width, either statically + This provides a 'mapping' driver which allows the NOR Flash and + ROM driver code to communicate with chips which are mapped + physically into the CPU's memory. You will need to configure + the physical address and size of the flash chips on your + particular board as well as the bus width, either statically with config options or at run-time. config MTD_PHYSMAP_START -- cgit v1.2.3-70-g09d2 From 5b0c5c2c0d04c29f85abb485378ba5476c7aeec2 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Wed, 9 Aug 2006 10:54:44 +0200 Subject: MTD: Convert Atmel PRI information to AMD format Atmel flash chips don't have PRI information in the same format as AMD flash chips. This patch installs a fixup for all Atmel chips that converts the relevant PRI fields into AMD format. Only the fields that are actually used by the command set is actually converted. The rest are initialized to zero (which should be safe) Signed-off-by: Haavard Skinnemoen Signed-off-by: Josh Boyer --- drivers/mtd/chips/cfi_cmdset_0002.c | 21 +++++++++++++++++++++ include/linux/mtd/cfi.h | 13 +++++++++++++ 2 files changed, 34 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 9885726a16e..8901c4412da 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -161,6 +161,26 @@ static void fixup_use_write_buffers(struct mtd_info *mtd, void *param) } } +/* Atmel chips don't use the same PRI format as AMD chips */ +static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param) +{ + struct map_info *map = mtd->priv; + struct cfi_private *cfi = map->fldrv_priv; + struct cfi_pri_amdstd *extp = cfi->cmdset_priv; + struct cfi_pri_atmel atmel_pri; + + memcpy(&atmel_pri, extp, sizeof(atmel_pri)); + memset(extp + 5, 0, sizeof(*extp) - 5); + + if (atmel_pri.Features & 0x02) + extp->EraseSuspend = 2; + + if (atmel_pri.BottomBoot) + extp->TopBottom = 2; + else + extp->TopBottom = 3; +} + static void fixup_use_secsi(struct mtd_info *mtd, void *param) { /* Setup for chips with a secsi area */ @@ -192,6 +212,7 @@ static struct cfi_fixup cfi_fixup_table[] = { #if !FORCE_WORD_WRITE { CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, }, #endif + { CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL }, { 0, 0, NULL, NULL } }; static struct cfi_fixup jedec_fixup_table[] = { diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index 09bfae6938b..123948b1454 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -199,6 +199,18 @@ struct cfi_pri_amdstd { uint8_t TopBottom; } __attribute__((packed)); +/* Vendor-Specific PRI for Atmel chips (command set 0x0002) */ + +struct cfi_pri_atmel { + uint8_t pri[3]; + uint8_t MajorVersion; + uint8_t MinorVersion; + uint8_t Features; + uint8_t BottomBoot; + uint8_t BurstMode; + uint8_t PageMode; +} __attribute__((packed)); + struct cfi_pri_query { uint8_t NumFields; uint32_t ProtField[1]; /* Not host ordered */ @@ -464,6 +476,7 @@ struct cfi_fixup { #define CFI_ID_ANY 0xffff #define CFI_MFR_AMD 0x0001 +#define CFI_MFR_ATMEL 0x001F #define CFI_MFR_ST 0x0020 /* STMicroelectronics */ void cfi_fixup(struct mtd_info *mtd, struct cfi_fixup* fixups); -- cgit v1.2.3-70-g09d2 From 0165508c80a2b5d5268d9c5dfa9b30c534a33693 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Wed, 9 Aug 2006 11:06:07 +0200 Subject: MTD: Add lock/unlock operations for Atmel AT49BV6416 The AT49BV6416 is locked by default, so we really need to provide at least the unlock() operation for write and erase to work. This patch implements both ->lock() and ->unlock() and provides a fixup to install them when an AT49BV6416 chip is detected. These functions are probably valid on more Atmel chips, but I believe it's mostly obsolete ones. The AT49BV6416 is in fact obsolete, but it's used on all current AT32STK1000 development boards. Signed-off-by: Haavard Skinnemoen Signed-off-by: Josh Boyer --- drivers/mtd/chips/cfi_cmdset_0002.c | 90 +++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 8901c4412da..ddc5bd78335 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -45,9 +45,11 @@ #define MAX_WORD_RETRIES 3 #define MANUFACTURER_AMD 0x0001 +#define MANUFACTURER_ATMEL 0x001F #define MANUFACTURER_SST 0x00BF #define SST49LF004B 0x0060 #define SST49LF008A 0x005a +#define AT49BV6416 0x00d6 static int cfi_amdstd_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *); static int cfi_amdstd_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *); @@ -68,6 +70,9 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr static void put_chip(struct map_info *map, struct flchip *chip, unsigned long adr); #include "fwh_lock.h" +static int cfi_atmel_lock(struct mtd_info *mtd, loff_t ofs, size_t len); +static int cfi_atmel_unlock(struct mtd_info *mtd, loff_t ofs, size_t len); + static struct mtd_chip_driver cfi_amdstd_chipdrv = { .probe = NULL, /* Not usable directly */ .destroy = cfi_amdstd_destroy, @@ -199,6 +204,16 @@ static void fixup_use_erase_chip(struct mtd_info *mtd, void *param) } +/* + * Some Atmel chips (e.g. the AT49BV6416) power-up with all sectors + * locked by default. + */ +static void fixup_use_atmel_lock(struct mtd_info *mtd, void *param) +{ + mtd->lock = cfi_atmel_lock; + mtd->unlock = cfi_atmel_unlock; +} + static struct cfi_fixup cfi_fixup_table[] = { #ifdef AMD_BOOTLOC_BUG { CFI_MFR_AMD, CFI_ID_ANY, fixup_amd_bootblock, NULL }, @@ -228,6 +243,7 @@ static struct cfi_fixup fixup_table[] = { * we know that is the case. */ { CFI_MFR_ANY, CFI_ID_ANY, fixup_use_erase_chip, NULL }, + { CFI_MFR_ATMEL, AT49BV6416, fixup_use_atmel_lock, NULL }, { 0, 0, NULL, NULL } }; @@ -1628,6 +1644,80 @@ static int cfi_amdstd_erase_chip(struct mtd_info *mtd, struct erase_info *instr) return 0; } +static int do_atmel_lock(struct map_info *map, struct flchip *chip, + unsigned long adr, int len, void *thunk) +{ + struct cfi_private *cfi = map->fldrv_priv; + int ret; + + spin_lock(chip->mutex); + ret = get_chip(map, chip, adr + chip->start, FL_LOCKING); + if (ret) + goto out_unlock; + chip->state = FL_LOCKING; + + DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): LOCK 0x%08lx len %d\n", + __func__, adr, len); + + cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); + cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, + cfi->device_type, NULL); + cfi_send_gen_cmd(0x80, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); + cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); + cfi_send_gen_cmd(0x55, cfi->addr_unlock2, chip->start, map, cfi, + cfi->device_type, NULL); + map_write(map, CMD(0x40), chip->start + adr); + + chip->state = FL_READY; + put_chip(map, chip, adr + chip->start); + ret = 0; + +out_unlock: + spin_unlock(chip->mutex); + return ret; +} + +static int do_atmel_unlock(struct map_info *map, struct flchip *chip, + unsigned long adr, int len, void *thunk) +{ + struct cfi_private *cfi = map->fldrv_priv; + int ret; + + spin_lock(chip->mutex); + ret = get_chip(map, chip, adr + chip->start, FL_UNLOCKING); + if (ret) + goto out_unlock; + chip->state = FL_UNLOCKING; + + DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): LOCK 0x%08lx len %d\n", + __func__, adr, len); + + cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, + cfi->device_type, NULL); + map_write(map, CMD(0x70), adr); + + chip->state = FL_READY; + put_chip(map, chip, adr + chip->start); + ret = 0; + +out_unlock: + spin_unlock(chip->mutex); + return ret; +} + +static int cfi_atmel_lock(struct mtd_info *mtd, loff_t ofs, size_t len) +{ + return cfi_varsize_frob(mtd, do_atmel_lock, ofs, len, NULL); +} + +static int cfi_atmel_unlock(struct mtd_info *mtd, loff_t ofs, size_t len) +{ + return cfi_varsize_frob(mtd, do_atmel_unlock, ofs, len, NULL); +} + static void cfi_amdstd_sync (struct mtd_info *mtd) { -- cgit v1.2.3-70-g09d2 From 2818c5dec5e28d65d52afbb7695bbbafe6377ee5 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Fri, 25 Aug 2006 15:08:21 +1000 Subject: [POWERPC] Only offer CONFIG_BRIQ_PANEL if CONFIG_PPC_CHRP is enabled since only the briQ has a briQ front panel, and the briQ is a CHRP and is only supported if CONFIG_PPC_CHRP is set. Signed-off-by: Paul Mackerras --- drivers/char/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 320ad7ba11d..52ea94b891f 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -497,7 +497,7 @@ config LEGACY_PTY_COUNT config BRIQ_PANEL tristate 'Total Impact briQ front panel driver' - depends on PPC + depends on PPC_CHRP ---help--- The briQ is a small footprint CHRP computer with a frontpanel VFD, a tristate led and two switches. It is the size of a CDROM drive. -- cgit v1.2.3-70-g09d2 From fa6c220a7f01257b1c2c4203d48aaaedb0c4416f Mon Sep 17 00:00:00 2001 From: Aubrey Lee Date: Tue, 5 Sep 2006 05:55:07 -0500 Subject: [PATCH] [MTD] DEVICES: Fill more device IDs in the structure of m25p80 The flash_info structure has a bunch of missing fields which causes problems when actually tryin to use some ST parts as it gets detected incorrectly. Signed-off-by: Aubrey L1 Signed-off-by: Josh Boyer --- drivers/mtd/devices/m25p80.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index a8466141e91..ef4a731ca5c 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -406,13 +406,13 @@ struct flash_info { static struct flash_info __devinitdata m25p_data [] = { /* REVISIT: fill in JEDEC ids, for parts that have them */ - { "m25p05", 0x05, 0x0000, 32 * 1024, 2 }, - { "m25p10", 0x10, 0x0000, 32 * 1024, 4 }, - { "m25p20", 0x11, 0x0000, 64 * 1024, 4 }, - { "m25p40", 0x12, 0x0000, 64 * 1024, 8 }, + { "m25p05", 0x05, 0x2010, 32 * 1024, 2 }, + { "m25p10", 0x10, 0x2011, 32 * 1024, 4 }, + { "m25p20", 0x11, 0x2012, 64 * 1024, 4 }, + { "m25p40", 0x12, 0x2013, 64 * 1024, 8 }, { "m25p80", 0x13, 0x0000, 64 * 1024, 16 }, - { "m25p16", 0x14, 0x0000, 64 * 1024, 32 }, - { "m25p32", 0x15, 0x0000, 64 * 1024, 64 }, + { "m25p16", 0x14, 0x2015, 64 * 1024, 32 }, + { "m25p32", 0x15, 0x2016, 64 * 1024, 64 }, { "m25p64", 0x16, 0x2017, 64 * 1024, 128 }, }; -- cgit v1.2.3-70-g09d2 From 3906f4edeef976c081c4e7bd92164d2f59c325ae Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 5 Sep 2006 17:15:47 -0400 Subject: [CPUFREQ] Fix sparse warning in ondemand drivers/cpufreq/cpufreq_ondemand.c:323:2: warning: Using plain integer as NULL pointer Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq_ondemand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c index 5ca2fd5d1ed..bf8aa45d4f0 100644 --- a/drivers/cpufreq/cpufreq_ondemand.c +++ b/drivers/cpufreq/cpufreq_ondemand.c @@ -449,7 +449,7 @@ static inline void dbs_timer_init(unsigned int cpu) delay -= jiffies % delay; ondemand_powersave_bias_init(); - INIT_WORK(&dbs_info->work, do_dbs_timer, 0); + INIT_WORK(&dbs_info->work, do_dbs_timer, NULL); queue_delayed_work_on(cpu, kondemand_wq, &dbs_info->work, delay); } -- cgit v1.2.3-70-g09d2 From 8eb7925f93af75e66a240d148efdec212f95bcb7 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Sun, 20 Aug 2006 18:48:13 +0400 Subject: [AGPGART] agp.h: constify struct agp_bridge_data::version drivers/char/agp/backend.c: In function `agp_backend_initialize': drivers/char/agp/backend.c:141: warning: assignment discards qualifiers from pointer target type Signed-off-by: Alexey Dobriyan Signed-off-by: Dave Jones --- drivers/char/agp/agp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/agp/agp.h b/drivers/char/agp/agp.h index 3c623b67ea1..8b3317fd46c 100644 --- a/drivers/char/agp/agp.h +++ b/drivers/char/agp/agp.h @@ -117,7 +117,7 @@ struct agp_bridge_driver { }; struct agp_bridge_data { - struct agp_version *version; + const struct agp_version *version; struct agp_bridge_driver *driver; struct vm_operations_struct *vm_ops; void *previous_size; -- cgit v1.2.3-70-g09d2 From 65c25aadfa4e917060e99fe459f33a6a07db53cc Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 6 Sep 2006 11:57:18 -0400 Subject: [AGPGART] Intel 965 Express support. From: Alan Hourihane From: Eric Anholt Signed-off-by: Dave Jones --- drivers/char/agp/intel-agp.c | 163 ++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 152 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index 42a1cb87199..a425f27af9e 100644 --- a/drivers/char/agp/intel-agp.c +++ b/drivers/char/agp/intel-agp.c @@ -2,14 +2,6 @@ * Intel AGPGART routines. */ -/* - * Intel(R) 855GM/852GM and 865G support added by David Dawes - * . - * - * Intel(R) 915G/915GM support added by Alan Hourihane - * . - */ - #include #include #include @@ -17,6 +9,21 @@ #include #include "agp.h" +#define PCI_DEVICE_ID_INTEL_82946GZ_HB 0x2970 +#define PCI_DEVICE_ID_INTEL_82946GZ_IG 0x2972 +#define PCI_DEVICE_ID_INTEL_82965G_1_HB 0x2980 +#define PCI_DEVICE_ID_INTEL_82965G_1_IG 0x2982 +#define PCI_DEVICE_ID_INTEL_82965Q_HB 0x2990 +#define PCI_DEVICE_ID_INTEL_82965Q_IG 0x2992 +#define PCI_DEVICE_ID_INTEL_82965G_HB 0x29A0 +#define PCI_DEVICE_ID_INTEL_82965G_IG 0x29A2 + +#define IS_I965 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82946GZ_HB || \ + agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965G_1_HB || \ + agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965Q_HB || \ + agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965G_HB) + + /* Intel 815 register */ #define INTEL_815_APCONT 0x51 #define INTEL_815_ATTBASE_MASK ~0x1FFFFFFF @@ -40,6 +47,8 @@ #define I915_GMCH_GMS_STOLEN_48M (0x6 << 4) #define I915_GMCH_GMS_STOLEN_64M (0x7 << 4) +/* Intel 965G registers */ +#define I965_MSAC 0x62 /* Intel 7505 registers */ #define INTEL_I7505_APSIZE 0x74 @@ -354,6 +363,7 @@ static struct aper_size_info_fixed intel_i830_sizes[] = /* The 64M mode still requires a 128k gatt */ {64, 16384, 5}, {256, 65536, 6}, + {512, 131072, 7}, }; static struct _intel_i830_private { @@ -377,7 +387,11 @@ static void intel_i830_init_gtt_entries(void) /* We obtain the size of the GTT, which is also stored (for some * reason) at the top of stolen memory. Then we add 4KB to that * for the video BIOS popup, which is also stored in there. */ - size = agp_bridge->driver->fetch_size() + 4; + + if (IS_I965) + size = 512 + 4; + else + size = agp_bridge->driver->fetch_size() + 4; if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82830_HB || agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) { @@ -423,7 +437,7 @@ static void intel_i830_init_gtt_entries(void) if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB || agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB || agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB || - agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB) + agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB || IS_I965 ) gtt_entries = MB(48) - KB(size); else gtt_entries = 0; @@ -433,7 +447,7 @@ static void intel_i830_init_gtt_entries(void) if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB || agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB || agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB || - agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB) + agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB || IS_I965) gtt_entries = MB(64) - KB(size); else gtt_entries = 0; @@ -791,6 +805,77 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge) return 0; } +static int intel_i965_fetch_size(void) +{ + struct aper_size_info_fixed *values; + u32 offset = 0; + u8 temp; + +#define I965_512MB_ADDRESS_MASK (3<<1) + + values = A_SIZE_FIX(agp_bridge->driver->aperture_sizes); + + pci_read_config_byte(intel_i830_private.i830_dev, I965_MSAC, &temp); + temp &= I965_512MB_ADDRESS_MASK; + switch (temp) { + case 0x00: + offset = 0; /* 128MB */ + break; + case 0x06: + offset = 3; /* 512MB */ + break; + default: + case 0x02: + offset = 2; /* 256MB */ + break; + } + + agp_bridge->previous_size = agp_bridge->current_size = (void *)(values + offset); + + return values[offset].size; +} + +/* The intel i965 automatically initializes the agp aperture during POST. ++ * Use the memory already set aside for in the GTT. ++ */ +static int intel_i965_create_gatt_table(struct agp_bridge_data *bridge) +{ + int page_order; + struct aper_size_info_fixed *size; + int num_entries; + u32 temp; + + size = agp_bridge->current_size; + page_order = size->page_order; + num_entries = size->num_entries; + agp_bridge->gatt_table_real = NULL; + + pci_read_config_dword(intel_i830_private.i830_dev, I915_MMADDR, &temp); + + temp &= 0xfff00000; + intel_i830_private.gtt = ioremap((temp + (512 * 1024)) , 512 * 1024); + + if (!intel_i830_private.gtt) + return -ENOMEM; + + + intel_i830_private.registers = ioremap(temp,128 * 4096); + if (!intel_i830_private.registers) + return -ENOMEM; + + temp = readl(intel_i830_private.registers+I810_PGETBL_CTL) & 0xfffff000; + global_cache_flush(); /* FIXME: ? */ + + /* we have to call this as early as possible after the MMIO base address is known */ + intel_i830_init_gtt_entries(); + + agp_bridge->gatt_table = NULL; + + agp_bridge->gatt_bus_addr = temp; + + return 0; +} + static int intel_fetch_size(void) { @@ -1489,6 +1574,29 @@ static struct agp_bridge_driver intel_915_driver = { .agp_destroy_page = agp_generic_destroy_page, }; +static struct agp_bridge_driver intel_i965_driver = { + .owner = THIS_MODULE, + .aperture_sizes = intel_i830_sizes, + .size_type = FIXED_APER_SIZE, + .num_aperture_sizes = 4, + .needs_scratch_page = TRUE, + .configure = intel_i915_configure, + .fetch_size = intel_i965_fetch_size, + .cleanup = intel_i915_cleanup, + .tlb_flush = intel_i810_tlbflush, + .mask_memory = intel_i810_mask_memory, + .masks = intel_i810_masks, + .agp_enable = intel_i810_agp_enable, + .cache_flush = global_cache_flush, + .create_gatt_table = intel_i965_create_gatt_table, + .free_gatt_table = intel_i830_free_gatt_table, + .insert_memory = intel_i915_insert_entries, + .remove_memory = intel_i915_remove_entries, + .alloc_by_type = intel_i830_alloc_by_type, + .free_by_type = intel_i810_free_by_type, + .agp_alloc_page = agp_generic_alloc_page, + .agp_destroy_page = agp_generic_destroy_page, +}; static struct agp_bridge_driver intel_7505_driver = { .owner = THIS_MODULE, @@ -1684,6 +1792,35 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev, bridge->driver = &intel_845_driver; name = "945GM"; break; + case PCI_DEVICE_ID_INTEL_82946GZ_HB: + if (find_i830(PCI_DEVICE_ID_INTEL_82946GZ_IG)) + bridge->driver = &intel_i965_driver; + else + bridge->driver = &intel_845_driver; + name = "946GZ"; + break; + case PCI_DEVICE_ID_INTEL_82965G_1_HB: + if (find_i830(PCI_DEVICE_ID_INTEL_82965G_1_IG)) + bridge->driver = &intel_i965_driver; + else + bridge->driver = &intel_845_driver; + name = "965G"; + break; + case PCI_DEVICE_ID_INTEL_82965Q_HB: + if (find_i830(PCI_DEVICE_ID_INTEL_82965Q_IG)) + bridge->driver = &intel_i965_driver; + else + bridge->driver = &intel_845_driver; + name = "965Q"; + break; + case PCI_DEVICE_ID_INTEL_82965G_HB: + if (find_i830(PCI_DEVICE_ID_INTEL_82965G_IG)) + bridge->driver = &intel_i965_driver; + else + bridge->driver = &intel_845_driver; + name = "965G"; + break; + case PCI_DEVICE_ID_INTEL_7505_0: bridge->driver = &intel_7505_driver; name = "E7505"; @@ -1827,6 +1964,10 @@ static struct pci_device_id agp_intel_pci_table[] = { ID(PCI_DEVICE_ID_INTEL_82915GM_HB), ID(PCI_DEVICE_ID_INTEL_82945G_HB), ID(PCI_DEVICE_ID_INTEL_82945GM_HB), + ID(PCI_DEVICE_ID_INTEL_82946GZ_HB), + ID(PCI_DEVICE_ID_INTEL_82965G_1_HB), + ID(PCI_DEVICE_ID_INTEL_82965Q_HB), + ID(PCI_DEVICE_ID_INTEL_82965G_HB), { } }; -- cgit v1.2.3-70-g09d2 From c14635eb4e591c61e419c065df1fdacf9ff90c00 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Wed, 6 Sep 2006 11:59:35 -0400 Subject: [AGPGART] Fix number of aperture sizes in 830 gart structs. Spotted by Eric Anholt. Signed-off-by: Dave Jones --- drivers/char/agp/intel-agp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index a425f27af9e..42c7d8dec63 100644 --- a/drivers/char/agp/intel-agp.c +++ b/drivers/char/agp/intel-agp.c @@ -1392,7 +1392,7 @@ static struct agp_bridge_driver intel_830_driver = { .owner = THIS_MODULE, .aperture_sizes = intel_i830_sizes, .size_type = FIXED_APER_SIZE, - .num_aperture_sizes = 3, + .num_aperture_sizes = 4, .needs_scratch_page = TRUE, .configure = intel_i830_configure, .fetch_size = intel_i830_fetch_size, @@ -1554,7 +1554,7 @@ static struct agp_bridge_driver intel_915_driver = { .owner = THIS_MODULE, .aperture_sizes = intel_i830_sizes, .size_type = FIXED_APER_SIZE, - .num_aperture_sizes = 3, + .num_aperture_sizes = 4, .needs_scratch_page = TRUE, .configure = intel_i915_configure, .fetch_size = intel_i915_fetch_size, -- cgit v1.2.3-70-g09d2 From 08da3f413f6aa3eb48cfc5331c68e57393167fe5 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Sun, 10 Sep 2006 21:09:26 -0400 Subject: [AGPGART] Add suspend callback for i965 Signed-off-by: Dave Jones --- drivers/char/agp/intel-agp.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index 42c7d8dec63..d1ede7db5a1 100644 --- a/drivers/char/agp/intel-agp.c +++ b/drivers/char/agp/intel-agp.c @@ -1924,6 +1924,8 @@ static int agp_intel_resume(struct pci_dev *pdev) intel_i830_configure(); else if (bridge->driver == &intel_810_driver) intel_i810_configure(); + else if (bridge->driver == &intel_i965_driver) + intel_i915_configure(); return 0; } -- cgit v1.2.3-70-g09d2 From edf03fb0575cbee2595a63374b17dc0921f2094a Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Sun, 10 Sep 2006 21:12:20 -0400 Subject: [AGPGART] Rework AGPv3 modesetting fallback. Sometimes the logic to handle AGPx8->AGPx4 fallback failed, as can be seen in https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=197346 The failures occured if the bridge was in AGPx8 mode, but the user hadn't specified a mode in their X config. We weren't setting the mode to the highest mode capable by the video card+bridge (as we do in the AGPv2 case), which was leading to all kinds of mayhem including us believing that after falling back from AGPx8, that we couldn't do x4 mode (which is disastrous in AGPv3, as those are the only two modes possible). Signed-off-by: Dave Jones --- drivers/char/agp/generic.c | 39 ++++++++++++++++++++++++--------------- 1 file changed, 24 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c index cc5ea347a8a..0dcdb363923 100644 --- a/drivers/char/agp/generic.c +++ b/drivers/char/agp/generic.c @@ -568,25 +568,34 @@ static void agp_v3_parse_one(u32 *requested_mode, u32 *bridge_agpstat, u32 *vga_ *bridge_agpstat &= ~(AGPSTAT3_4X | AGPSTAT3_RSVD); goto done; + } else if (*requested_mode & AGPSTAT3_4X) { + *bridge_agpstat &= ~(AGPSTAT3_8X | AGPSTAT3_RSVD); + *bridge_agpstat |= AGPSTAT3_4X; + goto done; + } else { /* - * If we didn't specify AGPx8, we can only do x4. - * If the hardware can't do x4, we're up shit creek, and never - * should have got this far. + * If we didn't specify an AGP mode, we see if both + * the graphics card, and the bridge can do x8, and use if so. + * If not, we fall back to x4 mode. */ - *bridge_agpstat &= ~(AGPSTAT3_8X | AGPSTAT3_RSVD); - if ((*bridge_agpstat & AGPSTAT3_4X) && (*vga_agpstat & AGPSTAT3_4X)) - *bridge_agpstat |= AGPSTAT3_4X; - else { - printk(KERN_INFO PFX "Badness. Don't know which AGP mode to set. " - "[bridge_agpstat:%x vga_agpstat:%x fell back to:- bridge_agpstat:%x vga_agpstat:%x]\n", - origbridge, origvga, *bridge_agpstat, *vga_agpstat); - if (!(*bridge_agpstat & AGPSTAT3_4X)) - printk(KERN_INFO PFX "Bridge couldn't do AGP x4.\n"); - if (!(*vga_agpstat & AGPSTAT3_4X)) - printk(KERN_INFO PFX "Graphic card couldn't do AGP x4.\n"); - return; + if ((*bridge_agpstat & AGPSTAT3_8X) && (*vga_agpstat & AGPSTAT3_8X)) { + printk(KERN_INFO PFX "No AGP mode specified. Setting to highest mode supported by bridge & card (x8).\n"); + *bridge_agpstat &= ~(AGPSTAT3_4X | AGPSTAT3_RSVD); + *vga_agpstat &= ~(AGPSTAT3_4X | AGPSTAT3_RSVD); + } else { + printk(KERN_INFO PFX "Fell back to AGPx4 mode because"); + if (!(*bridge_agpstat & AGPSTAT3_8X)) { + printk("bridge couldn't do x8. bridge_agpstat:%x (orig=%x)\n", *bridge_agpstat, origbridge); + *bridge_agpstat &= ~(AGPSTAT3_8X | AGPSTAT3_RSVD); + *bridge_agpstat |= AGPSTAT3_4X; + } + if (!(*vga_agpstat & AGPSTAT3_8X)) { + printk("graphics card couldn't do x8. vga_agpstat:%x (orig=%x)\n", *vga_agpstat, origvga); + *vga_agpstat &= ~(AGPSTAT3_8X | AGPSTAT3_RSVD); + *vga_agpstat |= AGPSTAT3_4X; + } } } -- cgit v1.2.3-70-g09d2 From 87fd7724d4022913ae8dbee3ed55cd04f2c316a6 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Thu, 7 Sep 2006 15:18:08 -0500 Subject: [POWERPC] Quiet hvc_console console output on failed opens No other tty driver will print on the console when the open of it fails. On systems that happen to be configured for both ttyS0 and hvc0 console, this will keep flooding the console output. This is most likely to happen with systems booted between with and without hypervisor from the same filesystem. Let's just remove it. When it's really needed (i.e. when the open fails and someone is trying to debug it), noone will see the output anyway. And init will report the opens failing in due time through the syslog. Signed-off-by: Olof Johansson Acked-by: Ryan S. Arnold Signed-off-by: Paul Mackerras --- drivers/char/hvc_console.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c index dbee8bed053..1d1bd34b7f1 100644 --- a/drivers/char/hvc_console.c +++ b/drivers/char/hvc_console.c @@ -320,10 +320,8 @@ static int hvc_open(struct tty_struct *tty, struct file * filp) struct kobject *kobjp; /* Auto increments kobject reference if found. */ - if (!(hp = hvc_get_by_index(tty->index))) { - printk(KERN_WARNING "hvc_console: tty open failed, no vty associated with tty.\n"); + if (!(hp = hvc_get_by_index(tty->index))) return -ENODEV; - } spin_lock_irqsave(&hp->lock, flags); /* Check and then increment for fast path open. */ -- cgit v1.2.3-70-g09d2 From de591dacf3034977b3fb94b61d08240c8b35c39d Mon Sep 17 00:00:00 2001 From: Håvard Skinnemoen Date: Fri, 15 Sep 2006 17:19:31 +0200 Subject: MTD: Fix bug in fixup_convert_atmel_pri MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The memset() in fixup_convert_atmel_pri is supposed to zero out everything except the first 5 bytes in *extp, but it ends up zeroing out something way outside the struct instead. Fix this potentially dangerous code by casting the pointer to char * before doing arithmetic. Signed-off-by: Håvard Skinnemoen Signed-off-by: David Woodhouse --- drivers/mtd/chips/cfi_cmdset_0002.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index ddc5bd78335..a482e8922de 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -175,7 +175,7 @@ static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param) struct cfi_pri_atmel atmel_pri; memcpy(&atmel_pri, extp, sizeof(atmel_pri)); - memset(extp + 5, 0, sizeof(*extp) - 5); + memset((char *)extp + 5, 0, sizeof(*extp) - 5); if (atmel_pri.Features & 0x02) extp->EraseSuspend = 2; -- cgit v1.2.3-70-g09d2 From ea59830db01b6b3d6bda9f84e3d272a346115e8e Mon Sep 17 00:00:00 2001 From: Josef 'Jeff' Sipek Date: Sat, 16 Sep 2006 21:09:29 -0400 Subject: [MTD] Use SEEK_{SET,CUR,END} instead of hardcoded values in mtdchar lseek() Signed-off-by: Josef 'Jeff' Sipek Signed-off-by: David Woodhouse --- drivers/mtd/mtdchar.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index fb8b4f7e48d..5b6acfcb2b8 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -62,15 +62,12 @@ static loff_t mtd_lseek (struct file *file, loff_t offset, int orig) struct mtd_info *mtd = mfi->mtd; switch (orig) { - case 0: - /* SEEK_SET */ + case SEEK_SET: break; - case 1: - /* SEEK_CUR */ + case SEEK_CUR: offset += file->f_pos; break; - case 2: - /* SEEK_END */ + case SEEK_END: offset += mtd->size; break; default: -- cgit v1.2.3-70-g09d2 From d730e1033f81fefd3176f53e070b2b64cd146db0 Mon Sep 17 00:00:00 2001 From: Chas Williams Date: Wed, 13 Sep 2006 20:33:40 -0700 Subject: [ATM]: [he] when transmit fails, unmap the dma regions Signed-off-by: Chas Williams Signed-off-by: David S. Miller --- drivers/atm/he.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers') diff --git a/drivers/atm/he.c b/drivers/atm/he.c index d369130f423..dd96123a2b7 100644 --- a/drivers/atm/he.c +++ b/drivers/atm/he.c @@ -2282,6 +2282,8 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid) TPDRQ_MASK(he_readl(he_dev, TPDRQ_B_H))); if (new_tail == he_dev->tpdrq_head) { + int slot; + hprintk("tpdrq full (cid 0x%x)\n", cid); /* * FIXME @@ -2289,6 +2291,13 @@ __enqueue_tpd(struct he_dev *he_dev, struct he_tpd *tpd, unsigned cid) * after service_tbrq, service the backlog * for now, we just drop the pdu */ + for (slot = 0; slot < TPD_MAXIOV; ++slot) { + if (tpd->iovec[slot].addr) + pci_unmap_single(he_dev->pci_dev, + tpd->iovec[slot].addr, + tpd->iovec[slot].len & TPD_LEN_MASK, + PCI_DMA_TODEVICE); + } if (tpd->skb) { if (tpd->vcc->pop) tpd->vcc->pop(tpd->vcc, tpd->skb); -- cgit v1.2.3-70-g09d2 From b9b64e6e89fc5a6ef220747115c5b7764614ca3f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 18 Sep 2006 01:47:13 -0700 Subject: [OPENPROMIO]: Handle current_node being NULL correctly. If the user tries to traverse to the next node of the last node, we get NULL in current_node and a zero phandle returned. That's fine, but if the user tries to obtain properties in that state, we try to dereference a NULL pointer in the downcall to the of_*() routines. So protect against that. Signed-off-by: David S. Miller --- drivers/sbus/char/openprom.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c index 293bb2fdb1d..2f698763ba5 100644 --- a/drivers/sbus/char/openprom.c +++ b/drivers/sbus/char/openprom.c @@ -145,8 +145,9 @@ static int opromgetprop(void __user *argp, struct device_node *dp, struct openpr void *pval; int len; - pval = of_get_property(dp, op->oprom_array, &len); - if (!pval || len <= 0 || len > bufsize) + if (!dp || + !(pval = of_get_property(dp, op->oprom_array, &len)) || + len <= 0 || len > bufsize) return copyout(argp, op, sizeof(int)); memcpy(op->oprom_array, pval, len); @@ -161,6 +162,8 @@ static int opromnxtprop(void __user *argp, struct device_node *dp, struct openpr struct property *prop; int len; + if (!dp) + return copyout(argp, op, sizeof(int)); if (op->oprom_array[0] == '\0') { prop = dp->properties; if (!prop) @@ -266,9 +269,13 @@ static int oprompci2node(void __user *argp, struct device_node *dp, struct openp static int oprompath2node(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize, DATA *data) { + phandle ph = 0; + dp = of_find_node_by_path(op->oprom_array); + if (dp) + ph = dp->node; data->current_node = dp; - *((int *)op->oprom_array) = dp->node; + *((int *)op->oprom_array) = ph; op->oprom_size = sizeof(int); return copyout(argp, op, bufsize + sizeof(int)); -- cgit v1.2.3-70-g09d2 From 71aa7054d3df0f74d9ffbef3dd1486764c7f592a Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Mon, 18 Sep 2006 13:30:17 +0100 Subject: [ARM] 3793/1: S3C2412: fix wrong serial info struct Patch from Ben Dooks The S3C2440 serial info struct is being passed through the S3C2412 serial info struct probe routine. Signed-off-by: Ben Dooks Signed-off-by: Thomas Glexiner Signed-off-by: Russell King --- drivers/serial/s3c2410.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c index 392bffcf96e..95738a19cde 100644 --- a/drivers/serial/s3c2410.c +++ b/drivers/serial/s3c2410.c @@ -1621,7 +1621,7 @@ static struct s3c24xx_uart_info s3c2412_uart_inf = { static int s3c2412_serial_probe(struct platform_device *dev) { dbg("s3c2440_serial_probe: dev=%p\n", dev); - return s3c24xx_serial_probe(dev, &s3c2440_uart_inf); + return s3c24xx_serial_probe(dev, &s3c2412_uart_inf); } static struct platform_driver s3c2412_serial_drv = { -- cgit v1.2.3-70-g09d2 From 7f81dc0097095f19d25e14c043edfdebb9e01295 Mon Sep 17 00:00:00 2001 From: Chas Williams Date: Tue, 19 Sep 2006 12:59:11 -0700 Subject: [ATM]: [he] don't hold the device lock when upcalling This can create a deadlock/lock ordering problem with other layers that want to use the transmit (or other) path of the card at that time. Signed-off-by: Chas Williams Signed-off-by: David S. Miller --- drivers/atm/he.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/atm/he.c b/drivers/atm/he.c index dd96123a2b7..ffcb9fd31c3 100644 --- a/drivers/atm/he.c +++ b/drivers/atm/he.c @@ -1928,7 +1928,9 @@ he_service_rbrq(struct he_dev *he_dev, int group) #ifdef notdef ATM_SKB(skb)->vcc = vcc; #endif + spin_unlock(&he_dev->global_lock); vcc->push(vcc, skb); + spin_lock(&he_dev->global_lock); atomic_inc(&vcc->stats->rx); -- cgit v1.2.3-70-g09d2 From 7561b974e0cbbdca1bb880b55200afd9a1a20737 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:58:22 +0200 Subject: [S390] remove old z90crypt driver. The z90crypt driver has served its term. It is replaced by the shiny new zcrypt device driver. Signed-off-by: Martin Schwidefsky --- drivers/s390/Kconfig | 9 - drivers/s390/crypto/Makefile | 2 - drivers/s390/crypto/z90common.h | 166 -- drivers/s390/crypto/z90crypt.h | 71 - drivers/s390/crypto/z90hardware.c | 2531 --------------------------- drivers/s390/crypto/z90main.c | 3379 ------------------------------------- include/asm-s390/z90crypt.h | 212 --- 7 files changed, 6370 deletions(-) delete mode 100644 drivers/s390/crypto/z90common.h delete mode 100644 drivers/s390/crypto/z90crypt.h delete mode 100644 drivers/s390/crypto/z90hardware.c delete mode 100644 drivers/s390/crypto/z90main.c delete mode 100644 include/asm-s390/z90crypt.h (limited to 'drivers') diff --git a/drivers/s390/Kconfig b/drivers/s390/Kconfig index 4d36208ff8d..f0ea550d39b 100644 --- a/drivers/s390/Kconfig +++ b/drivers/s390/Kconfig @@ -217,13 +217,4 @@ endmenu menu "Cryptographic devices" -config Z90CRYPT - tristate "Support for PCI-attached cryptographic adapters" - default "m" - help - Select this option if you want to use a PCI-attached cryptographic - adapter like the PCI Cryptographic Accelerator (PCICA) or the PCI - Cryptographic Coprocessor (PCICC). This option is also available - as a module called z90crypt.ko. - endmenu diff --git a/drivers/s390/crypto/Makefile b/drivers/s390/crypto/Makefile index 15edebbead7..67e75be8e4e 100644 --- a/drivers/s390/crypto/Makefile +++ b/drivers/s390/crypto/Makefile @@ -2,5 +2,3 @@ # S/390 crypto devices # -z90crypt-objs := z90main.o z90hardware.o -obj-$(CONFIG_Z90CRYPT) += z90crypt.o diff --git a/drivers/s390/crypto/z90common.h b/drivers/s390/crypto/z90common.h deleted file mode 100644 index dbbcda3c846..00000000000 --- a/drivers/s390/crypto/z90common.h +++ /dev/null @@ -1,166 +0,0 @@ -/* - * linux/drivers/s390/crypto/z90common.h - * - * z90crypt 1.3.3 - * - * Copyright (C) 2001, 2005 IBM Corporation - * Author(s): Robert Burroughs (burrough@us.ibm.com) - * Eric Rossman (edrossma@us.ibm.com) - * - * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#ifndef _Z90COMMON_H_ -#define _Z90COMMON_H_ - - -#define RESPBUFFSIZE 256 -#define PCI_FUNC_KEY_DECRYPT 0x5044 -#define PCI_FUNC_KEY_ENCRYPT 0x504B -extern int ext_bitlens; - -enum devstat { - DEV_GONE, - DEV_ONLINE, - DEV_QUEUE_FULL, - DEV_EMPTY, - DEV_NO_WORK, - DEV_BAD_MESSAGE, - DEV_TSQ_EXCEPTION, - DEV_RSQ_EXCEPTION, - DEV_SEN_EXCEPTION, - DEV_REC_EXCEPTION -}; - -enum hdstat { - HD_NOT_THERE, - HD_BUSY, - HD_DECONFIGURED, - HD_CHECKSTOPPED, - HD_ONLINE, - HD_TSQ_EXCEPTION -}; - -#define Z90C_NO_DEVICES 1 -#define Z90C_AMBIGUOUS_DOMAIN 2 -#define Z90C_INCORRECT_DOMAIN 3 -#define ENOTINIT 4 - -#define SEN_BUSY 7 -#define SEN_USER_ERROR 8 -#define SEN_QUEUE_FULL 11 -#define SEN_NOT_AVAIL 16 -#define SEN_PAD_ERROR 17 -#define SEN_RETRY 18 -#define SEN_RELEASED 24 - -#define REC_EMPTY 4 -#define REC_BUSY 6 -#define REC_OPERAND_INV 8 -#define REC_OPERAND_SIZE 9 -#define REC_EVEN_MOD 10 -#define REC_NO_WORK 11 -#define REC_HARDWAR_ERR 12 -#define REC_NO_RESPONSE 13 -#define REC_RETRY_DEV 14 -#define REC_USER_GONE 15 -#define REC_BAD_MESSAGE 16 -#define REC_INVALID_PAD 17 -#define REC_USE_PCICA 18 - -#define WRONG_DEVICE_TYPE 20 - -#define REC_FATAL_ERROR 32 -#define SEN_FATAL_ERROR 33 -#define TSQ_FATAL_ERROR 34 -#define RSQ_FATAL_ERROR 35 - -#define Z90CRYPT_NUM_TYPES 6 -#define PCICA 0 -#define PCICC 1 -#define PCIXCC_MCL2 2 -#define PCIXCC_MCL3 3 -#define CEX2C 4 -#define CEX2A 5 -#define NILDEV -1 -#define ANYDEV -1 -#define PCIXCC_UNK -2 - -enum hdevice_type { - PCICC_HW = 3, - PCICA_HW = 4, - PCIXCC_HW = 5, - CEX2A_HW = 6, - CEX2C_HW = 7 -}; - -struct CPRBX { - unsigned short cprb_len; - unsigned char cprb_ver_id; - unsigned char pad_000[3]; - unsigned char func_id[2]; - unsigned char cprb_flags[4]; - unsigned int req_parml; - unsigned int req_datal; - unsigned int rpl_msgbl; - unsigned int rpld_parml; - unsigned int rpl_datal; - unsigned int rpld_datal; - unsigned int req_extbl; - unsigned char pad_001[4]; - unsigned int rpld_extbl; - unsigned char req_parmb[16]; - unsigned char req_datab[16]; - unsigned char rpl_parmb[16]; - unsigned char rpl_datab[16]; - unsigned char req_extb[16]; - unsigned char rpl_extb[16]; - unsigned short ccp_rtcode; - unsigned short ccp_rscode; - unsigned int mac_data_len; - unsigned char logon_id[8]; - unsigned char mac_value[8]; - unsigned char mac_content_flgs; - unsigned char pad_002; - unsigned short domain; - unsigned char pad_003[12]; - unsigned char pad_004[36]; -}; - -#ifndef DEV_NAME -#define DEV_NAME "z90crypt" -#endif -#define PRINTK(fmt, args...) \ - printk(KERN_DEBUG DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) -#define PRINTKN(fmt, args...) \ - printk(KERN_DEBUG DEV_NAME ": " fmt, ## args) -#define PRINTKW(fmt, args...) \ - printk(KERN_WARNING DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) -#define PRINTKC(fmt, args...) \ - printk(KERN_CRIT DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) - -#ifdef Z90CRYPT_DEBUG -#define PDEBUG(fmt, args...) \ - printk(KERN_DEBUG DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) -#else -#define PDEBUG(fmt, args...) do {} while (0) -#endif - -#define UMIN(a,b) ((a) < (b) ? (a) : (b)) -#define IS_EVEN(x) ((x) == (2 * ((x) / 2))) - -#endif diff --git a/drivers/s390/crypto/z90crypt.h b/drivers/s390/crypto/z90crypt.h deleted file mode 100644 index 0ca1d126ccb..00000000000 --- a/drivers/s390/crypto/z90crypt.h +++ /dev/null @@ -1,71 +0,0 @@ -/* - * linux/drivers/s390/crypto/z90crypt.h - * - * z90crypt 1.3.3 (kernel-private header) - * - * Copyright (C) 2001, 2005 IBM Corporation - * Author(s): Robert Burroughs (burrough@us.ibm.com) - * Eric Rossman (edrossma@us.ibm.com) - * - * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#ifndef _Z90CRYPT_H_ -#define _Z90CRYPT_H_ - -#include - -/** - * local errno definitions - */ -#define ENOBUFF 129 // filp->private_data->...>work_elem_p->buffer is NULL -#define EWORKPEND 130 // user issues ioctl while another pending -#define ERELEASED 131 // user released while ioctl pending -#define EQUIESCE 132 // z90crypt quiescing (no more work allowed) -#define ETIMEOUT 133 // request timed out -#define EUNKNOWN 134 // some unrecognized error occured (retry may succeed) -#define EGETBUFF 135 // Error getting buffer or hardware lacks capability - // (retry in software) - -/** - * DEPRECATED STRUCTURES - */ - -/** - * This structure is DEPRECATED and the corresponding ioctl() has been - * replaced with individual ioctl()s for each piece of data! - * This structure will NOT survive past version 1.3.1, so switch to the - * new ioctl()s. - */ -#define MASK_LENGTH 64 // mask length -struct ica_z90_status { - int totalcount; - int leedslitecount; // PCICA - int leeds2count; // PCICC - // int PCIXCCCount; is not in struct for backward compatibility - int requestqWaitCount; - int pendingqWaitCount; - int totalOpenCount; - int cryptoDomain; - // status: 0=not there, 1=PCICA, 2=PCICC, 3=PCIXCC_MCL2, 4=PCIXCC_MCL3, - // 5=CEX2C - unsigned char status[MASK_LENGTH]; - // qdepth: # work elements waiting for each device - unsigned char qdepth[MASK_LENGTH]; -}; - -#endif /* _Z90CRYPT_H_ */ diff --git a/drivers/s390/crypto/z90hardware.c b/drivers/s390/crypto/z90hardware.c deleted file mode 100644 index be60795f4a7..00000000000 --- a/drivers/s390/crypto/z90hardware.c +++ /dev/null @@ -1,2531 +0,0 @@ -/* - * linux/drivers/s390/crypto/z90hardware.c - * - * z90crypt 1.3.3 - * - * Copyright (C) 2001, 2005 IBM Corporation - * Author(s): Robert Burroughs (burrough@us.ibm.com) - * Eric Rossman (edrossma@us.ibm.com) - * - * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include -#include -#include -#include -#include -#include "z90crypt.h" -#include "z90common.h" - -struct cca_token_hdr { - unsigned char token_identifier; - unsigned char version; - unsigned short token_length; - unsigned char reserved[4]; -}; - -#define CCA_TKN_HDR_ID_EXT 0x1E - -struct cca_private_ext_ME_sec { - unsigned char section_identifier; - unsigned char version; - unsigned short section_length; - unsigned char private_key_hash[20]; - unsigned char reserved1[4]; - unsigned char key_format; - unsigned char reserved2; - unsigned char key_name_hash[20]; - unsigned char key_use_flags[4]; - unsigned char reserved3[6]; - unsigned char reserved4[24]; - unsigned char confounder[24]; - unsigned char exponent[128]; - unsigned char modulus[128]; -}; - -#define CCA_PVT_USAGE_ALL 0x80 - -struct cca_public_sec { - unsigned char section_identifier; - unsigned char version; - unsigned short section_length; - unsigned char reserved[2]; - unsigned short exponent_len; - unsigned short modulus_bit_len; - unsigned short modulus_byte_len; - unsigned char exponent[3]; -}; - -struct cca_private_ext_ME { - struct cca_token_hdr pvtMEHdr; - struct cca_private_ext_ME_sec pvtMESec; - struct cca_public_sec pubMESec; -}; - -struct cca_public_key { - struct cca_token_hdr pubHdr; - struct cca_public_sec pubSec; -}; - -struct cca_pvt_ext_CRT_sec { - unsigned char section_identifier; - unsigned char version; - unsigned short section_length; - unsigned char private_key_hash[20]; - unsigned char reserved1[4]; - unsigned char key_format; - unsigned char reserved2; - unsigned char key_name_hash[20]; - unsigned char key_use_flags[4]; - unsigned short p_len; - unsigned short q_len; - unsigned short dp_len; - unsigned short dq_len; - unsigned short u_len; - unsigned short mod_len; - unsigned char reserved3[4]; - unsigned short pad_len; - unsigned char reserved4[52]; - unsigned char confounder[8]; -}; - -#define CCA_PVT_EXT_CRT_SEC_ID_PVT 0x08 -#define CCA_PVT_EXT_CRT_SEC_FMT_CL 0x40 - -struct cca_private_ext_CRT { - struct cca_token_hdr pvtCrtHdr; - struct cca_pvt_ext_CRT_sec pvtCrtSec; - struct cca_public_sec pubCrtSec; -}; - -struct ap_status_word { - unsigned char q_stat_flags; - unsigned char response_code; - unsigned char reserved[2]; -}; - -#define AP_Q_STATUS_EMPTY 0x80 -#define AP_Q_STATUS_REPLIES_WAITING 0x40 -#define AP_Q_STATUS_ARRAY_FULL 0x20 - -#define AP_RESPONSE_NORMAL 0x00 -#define AP_RESPONSE_Q_NOT_AVAIL 0x01 -#define AP_RESPONSE_RESET_IN_PROGRESS 0x02 -#define AP_RESPONSE_DECONFIGURED 0x03 -#define AP_RESPONSE_CHECKSTOPPED 0x04 -#define AP_RESPONSE_BUSY 0x05 -#define AP_RESPONSE_Q_FULL 0x10 -#define AP_RESPONSE_NO_PENDING_REPLY 0x10 -#define AP_RESPONSE_INDEX_TOO_BIG 0x11 -#define AP_RESPONSE_NO_FIRST_PART 0x13 -#define AP_RESPONSE_MESSAGE_TOO_BIG 0x15 - -#define AP_MAX_CDX_BITL 4 -#define AP_RQID_RESERVED_BITL 4 -#define SKIP_BITL (AP_MAX_CDX_BITL + AP_RQID_RESERVED_BITL) - -struct type4_hdr { - unsigned char reserved1; - unsigned char msg_type_code; - unsigned short msg_len; - unsigned char request_code; - unsigned char msg_fmt; - unsigned short reserved2; -}; - -#define TYPE4_TYPE_CODE 0x04 -#define TYPE4_REQU_CODE 0x40 - -#define TYPE4_SME_LEN 0x0188 -#define TYPE4_LME_LEN 0x0308 -#define TYPE4_SCR_LEN 0x01E0 -#define TYPE4_LCR_LEN 0x03A0 - -#define TYPE4_SME_FMT 0x00 -#define TYPE4_LME_FMT 0x10 -#define TYPE4_SCR_FMT 0x40 -#define TYPE4_LCR_FMT 0x50 - -struct type4_sme { - struct type4_hdr header; - unsigned char message[128]; - unsigned char exponent[128]; - unsigned char modulus[128]; -}; - -struct type4_lme { - struct type4_hdr header; - unsigned char message[256]; - unsigned char exponent[256]; - unsigned char modulus[256]; -}; - -struct type4_scr { - struct type4_hdr header; - unsigned char message[128]; - unsigned char dp[72]; - unsigned char dq[64]; - unsigned char p[72]; - unsigned char q[64]; - unsigned char u[72]; -}; - -struct type4_lcr { - struct type4_hdr header; - unsigned char message[256]; - unsigned char dp[136]; - unsigned char dq[128]; - unsigned char p[136]; - unsigned char q[128]; - unsigned char u[136]; -}; - -union type4_msg { - struct type4_sme sme; - struct type4_lme lme; - struct type4_scr scr; - struct type4_lcr lcr; -}; - -struct type84_hdr { - unsigned char reserved1; - unsigned char code; - unsigned short len; - unsigned char reserved2[4]; -}; - -#define TYPE84_RSP_CODE 0x84 - -struct type6_hdr { - unsigned char reserved1; - unsigned char type; - unsigned char reserved2[2]; - unsigned char right[4]; - unsigned char reserved3[2]; - unsigned char reserved4[2]; - unsigned char apfs[4]; - unsigned int offset1; - unsigned int offset2; - unsigned int offset3; - unsigned int offset4; - unsigned char agent_id[16]; - unsigned char rqid[2]; - unsigned char reserved5[2]; - unsigned char function_code[2]; - unsigned char reserved6[2]; - unsigned int ToCardLen1; - unsigned int ToCardLen2; - unsigned int ToCardLen3; - unsigned int ToCardLen4; - unsigned int FromCardLen1; - unsigned int FromCardLen2; - unsigned int FromCardLen3; - unsigned int FromCardLen4; -}; - -struct CPRB { - unsigned char cprb_len[2]; - unsigned char cprb_ver_id; - unsigned char pad_000; - unsigned char srpi_rtcode[4]; - unsigned char srpi_verb; - unsigned char flags; - unsigned char func_id[2]; - unsigned char checkpoint_flag; - unsigned char resv2; - unsigned char req_parml[2]; - unsigned char req_parmp[4]; - unsigned char req_datal[4]; - unsigned char req_datap[4]; - unsigned char rpl_parml[2]; - unsigned char pad_001[2]; - unsigned char rpl_parmp[4]; - unsigned char rpl_datal[4]; - unsigned char rpl_datap[4]; - unsigned char ccp_rscode[2]; - unsigned char ccp_rtcode[2]; - unsigned char repd_parml[2]; - unsigned char mac_data_len[2]; - unsigned char repd_datal[4]; - unsigned char req_pc[2]; - unsigned char res_origin[8]; - unsigned char mac_value[8]; - unsigned char logon_id[8]; - unsigned char usage_domain[2]; - unsigned char resv3[18]; - unsigned char svr_namel[2]; - unsigned char svr_name[8]; -}; - -struct type6_msg { - struct type6_hdr header; - struct CPRB CPRB; -}; - -struct type86_hdr { - unsigned char reserved1; - unsigned char type; - unsigned char format; - unsigned char reserved2; - unsigned char reply_code; - unsigned char reserved3[3]; -}; - -#define TYPE86_RSP_CODE 0x86 -#define TYPE86_FMT2 0x02 - -struct type86_fmt2_msg { - struct type86_hdr header; - unsigned char reserved[4]; - unsigned char apfs[4]; - unsigned int count1; - unsigned int offset1; - unsigned int count2; - unsigned int offset2; - unsigned int count3; - unsigned int offset3; - unsigned int count4; - unsigned int offset4; -}; - -static struct type6_hdr static_type6_hdr = { - 0x00, - 0x06, - {0x00,0x00}, - {0x00,0x00,0x00,0x00}, - {0x00,0x00}, - {0x00,0x00}, - {0x00,0x00,0x00,0x00}, - 0x00000058, - 0x00000000, - 0x00000000, - 0x00000000, - {0x01,0x00,0x43,0x43,0x41,0x2D,0x41,0x50, - 0x50,0x4C,0x20,0x20,0x20,0x01,0x01,0x01}, - {0x00,0x00}, - {0x00,0x00}, - {0x50,0x44}, - {0x00,0x00}, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000 -}; - -static struct type6_hdr static_type6_hdrX = { - 0x00, - 0x06, - {0x00,0x00}, - {0x00,0x00,0x00,0x00}, - {0x00,0x00}, - {0x00,0x00}, - {0x00,0x00,0x00,0x00}, - 0x00000058, - 0x00000000, - 0x00000000, - 0x00000000, - {0x43,0x41,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00}, - {0x00,0x00}, - {0x50,0x44}, - {0x00,0x00}, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000 -}; - -static struct CPRB static_cprb = { - {0x70,0x00}, - 0x41, - 0x00, - {0x00,0x00,0x00,0x00}, - 0x00, - 0x00, - {0x54,0x32}, - 0x01, - 0x00, - {0x00,0x00}, - {0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00}, - {0x00,0x00}, - {0x00,0x00}, - {0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00}, - {0x00,0x00}, - {0x00,0x00}, - {0x00,0x00}, - {0x00,0x00}, - {0x00,0x00,0x00,0x00}, - {0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00}, - {0x08,0x00}, - {0x49,0x43,0x53,0x46,0x20,0x20,0x20,0x20} -}; - -struct function_and_rules_block { - unsigned char function_code[2]; - unsigned char ulen[2]; - unsigned char only_rule[8]; -}; - -static struct function_and_rules_block static_pkd_function_and_rules = { - {0x50,0x44}, - {0x0A,0x00}, - {'P','K','C','S','-','1','.','2'} -}; - -static struct function_and_rules_block static_pke_function_and_rules = { - {0x50,0x4B}, - {0x0A,0x00}, - {'P','K','C','S','-','1','.','2'} -}; - -struct T6_keyBlock_hdr { - unsigned char blen[2]; - unsigned char ulen[2]; - unsigned char flags[2]; -}; - -static struct T6_keyBlock_hdr static_T6_keyBlock_hdr = { - {0x89,0x01}, - {0x87,0x01}, - {0x00} -}; - -static struct CPRBX static_cprbx = { - 0x00DC, - 0x02, - {0x00,0x00,0x00}, - {0x54,0x32}, - {0x00,0x00,0x00,0x00}, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - 0x00000000, - {0x00,0x00,0x00,0x00}, - 0x00000000, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - 0x0000, - 0x0000, - 0x00000000, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - 0x00, - 0x00, - 0x0000, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00} -}; - -static struct function_and_rules_block static_pkd_function_and_rulesX_MCL2 = { - {0x50,0x44}, - {0x00,0x0A}, - {'P','K','C','S','-','1','.','2'} -}; - -static struct function_and_rules_block static_pke_function_and_rulesX_MCL2 = { - {0x50,0x4B}, - {0x00,0x0A}, - {'Z','E','R','O','-','P','A','D'} -}; - -static struct function_and_rules_block static_pkd_function_and_rulesX = { - {0x50,0x44}, - {0x00,0x0A}, - {'Z','E','R','O','-','P','A','D'} -}; - -static struct function_and_rules_block static_pke_function_and_rulesX = { - {0x50,0x4B}, - {0x00,0x0A}, - {'M','R','P',' ',' ',' ',' ',' '} -}; - -static unsigned char static_PKE_function_code[2] = {0x50, 0x4B}; - -struct T6_keyBlock_hdrX { - unsigned short blen; - unsigned short ulen; - unsigned char flags[2]; -}; - -static unsigned char static_pad[256] = { -0x1B,0x7B,0x5D,0xB5,0x75,0x01,0x3D,0xFD,0x8D,0xD1,0xC7,0x03,0x2D,0x09,0x23,0x57, -0x89,0x49,0xB9,0x3F,0xBB,0x99,0x41,0x5B,0x75,0x21,0x7B,0x9D,0x3B,0x6B,0x51,0x39, -0xBB,0x0D,0x35,0xB9,0x89,0x0F,0x93,0xA5,0x0B,0x47,0xF1,0xD3,0xBB,0xCB,0xF1,0x9D, -0x23,0x73,0x71,0xFF,0xF3,0xF5,0x45,0xFB,0x61,0x29,0x23,0xFD,0xF1,0x29,0x3F,0x7F, -0x17,0xB7,0x1B,0xA9,0x19,0xBD,0x57,0xA9,0xD7,0x95,0xA3,0xCB,0xED,0x1D,0xDB,0x45, -0x7D,0x11,0xD1,0x51,0x1B,0xED,0x71,0xE9,0xB1,0xD1,0xAB,0xAB,0x21,0x2B,0x1B,0x9F, -0x3B,0x9F,0xF7,0xF7,0xBD,0x63,0xEB,0xAD,0xDF,0xB3,0x6F,0x5B,0xDB,0x8D,0xA9,0x5D, -0xE3,0x7D,0x77,0x49,0x47,0xF5,0xA7,0xFD,0xAB,0x2F,0x27,0x35,0x77,0xD3,0x49,0xC9, -0x09,0xEB,0xB1,0xF9,0xBF,0x4B,0xCB,0x2B,0xEB,0xEB,0x05,0xFF,0x7D,0xC7,0x91,0x8B, -0x09,0x83,0xB9,0xB9,0x69,0x33,0x39,0x6B,0x79,0x75,0x19,0xBF,0xBB,0x07,0x1D,0xBD, -0x29,0xBF,0x39,0x95,0x93,0x1D,0x35,0xC7,0xC9,0x4D,0xE5,0x97,0x0B,0x43,0x9B,0xF1, -0x16,0x93,0x03,0x1F,0xA5,0xFB,0xDB,0xF3,0x27,0x4F,0x27,0x61,0x05,0x1F,0xB9,0x23, -0x2F,0xC3,0x81,0xA9,0x23,0x71,0x55,0x55,0xEB,0xED,0x41,0xE5,0xF3,0x11,0xF1,0x43, -0x69,0x03,0xBD,0x0B,0x37,0x0F,0x51,0x8F,0x0B,0xB5,0x89,0x5B,0x67,0xA9,0xD9,0x4F, -0x01,0xF9,0x21,0x77,0x37,0x73,0x79,0xC5,0x7F,0x51,0xC1,0xCF,0x97,0xA1,0x75,0xAD, -0x35,0x9D,0xD3,0xD3,0xA7,0x9D,0x5D,0x41,0x6F,0x65,0x1B,0xCF,0xA9,0x87,0x91,0x09 -}; - -static struct cca_private_ext_ME static_pvt_me_key = { - { - 0x1E, - 0x00, - 0x0183, - {0x00,0x00,0x00,0x00} - }, - - { - 0x02, - 0x00, - 0x016C, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00}, - 0x00, - 0x00, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00}, - {0x80,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, - {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, - 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00} - }, - - { - 0x04, - 0x00, - 0x000F, - {0x00,0x00}, - 0x0003, - 0x0000, - 0x0000, - {0x01,0x00,0x01} - } -}; - -static struct cca_public_key static_public_key = { - { - 0x1E, - 0x00, - 0x0000, - {0x00,0x00,0x00,0x00} - }, - - { - 0x04, - 0x00, - 0x0000, - {0x00,0x00}, - 0x0000, - 0x0000, - 0x0000, - {0x01,0x00,0x01} - } -}; - -#define FIXED_TYPE6_ME_LEN 0x0000025F - -#define FIXED_TYPE6_ME_EN_LEN 0x000000F0 - -#define FIXED_TYPE6_ME_LENX 0x000002CB - -#define FIXED_TYPE6_ME_EN_LENX 0x0000015C - -static struct cca_public_sec static_cca_pub_sec = { - 0x04, - 0x00, - 0x000f, - {0x00,0x00}, - 0x0003, - 0x0000, - 0x0000, - {0x01,0x00,0x01} -}; - -#define FIXED_TYPE6_CR_LEN 0x00000177 - -#define FIXED_TYPE6_CR_LENX 0x000001E3 - -#define MAX_RESPONSE_SIZE 0x00000710 - -#define MAX_RESPONSEX_SIZE 0x0000077C - -#define RESPONSE_CPRB_SIZE 0x000006B8 -#define RESPONSE_CPRBX_SIZE 0x00000724 - -struct type50_hdr { - u8 reserved1; - u8 msg_type_code; - u16 msg_len; - u8 reserved2; - u8 ignored; - u16 reserved3; -}; - -#define TYPE50_TYPE_CODE 0x50 - -#define TYPE50_MEB1_LEN (sizeof(struct type50_meb1_msg)) -#define TYPE50_MEB2_LEN (sizeof(struct type50_meb2_msg)) -#define TYPE50_CRB1_LEN (sizeof(struct type50_crb1_msg)) -#define TYPE50_CRB2_LEN (sizeof(struct type50_crb2_msg)) - -#define TYPE50_MEB1_FMT 0x0001 -#define TYPE50_MEB2_FMT 0x0002 -#define TYPE50_CRB1_FMT 0x0011 -#define TYPE50_CRB2_FMT 0x0012 - -struct type50_meb1_msg { - struct type50_hdr header; - u16 keyblock_type; - u8 reserved[6]; - u8 exponent[128]; - u8 modulus[128]; - u8 message[128]; -}; - -struct type50_meb2_msg { - struct type50_hdr header; - u16 keyblock_type; - u8 reserved[6]; - u8 exponent[256]; - u8 modulus[256]; - u8 message[256]; -}; - -struct type50_crb1_msg { - struct type50_hdr header; - u16 keyblock_type; - u8 reserved[6]; - u8 p[64]; - u8 q[64]; - u8 dp[64]; - u8 dq[64]; - u8 u[64]; - u8 message[128]; -}; - -struct type50_crb2_msg { - struct type50_hdr header; - u16 keyblock_type; - u8 reserved[6]; - u8 p[128]; - u8 q[128]; - u8 dp[128]; - u8 dq[128]; - u8 u[128]; - u8 message[256]; -}; - -union type50_msg { - struct type50_meb1_msg meb1; - struct type50_meb2_msg meb2; - struct type50_crb1_msg crb1; - struct type50_crb2_msg crb2; -}; - -struct type80_hdr { - u8 reserved1; - u8 type; - u16 len; - u8 code; - u8 reserved2[3]; - u8 reserved3[8]; -}; - -#define TYPE80_RSP_CODE 0x80 - -struct error_hdr { - unsigned char reserved1; - unsigned char type; - unsigned char reserved2[2]; - unsigned char reply_code; - unsigned char reserved3[3]; -}; - -#define TYPE82_RSP_CODE 0x82 -#define TYPE88_RSP_CODE 0x88 - -#define REP82_ERROR_MACHINE_FAILURE 0x10 -#define REP82_ERROR_PREEMPT_FAILURE 0x12 -#define REP82_ERROR_CHECKPT_FAILURE 0x14 -#define REP82_ERROR_MESSAGE_TYPE 0x20 -#define REP82_ERROR_INVALID_COMM_CD 0x21 -#define REP82_ERROR_INVALID_MSG_LEN 0x23 -#define REP82_ERROR_RESERVD_FIELD 0x24 -#define REP82_ERROR_FORMAT_FIELD 0x29 -#define REP82_ERROR_INVALID_COMMAND 0x30 -#define REP82_ERROR_MALFORMED_MSG 0x40 -#define REP82_ERROR_RESERVED_FIELDO 0x50 -#define REP82_ERROR_WORD_ALIGNMENT 0x60 -#define REP82_ERROR_MESSAGE_LENGTH 0x80 -#define REP82_ERROR_OPERAND_INVALID 0x82 -#define REP82_ERROR_OPERAND_SIZE 0x84 -#define REP82_ERROR_EVEN_MOD_IN_OPND 0x85 -#define REP82_ERROR_RESERVED_FIELD 0x88 -#define REP82_ERROR_TRANSPORT_FAIL 0x90 -#define REP82_ERROR_PACKET_TRUNCATED 0xA0 -#define REP82_ERROR_ZERO_BUFFER_LEN 0xB0 - -#define REP88_ERROR_MODULE_FAILURE 0x10 -#define REP88_ERROR_MODULE_TIMEOUT 0x11 -#define REP88_ERROR_MODULE_NOTINIT 0x13 -#define REP88_ERROR_MODULE_NOTAVAIL 0x14 -#define REP88_ERROR_MODULE_DISABLED 0x15 -#define REP88_ERROR_MODULE_IN_DIAGN 0x17 -#define REP88_ERROR_FASTPATH_DISABLD 0x19 -#define REP88_ERROR_MESSAGE_TYPE 0x20 -#define REP88_ERROR_MESSAGE_MALFORMD 0x22 -#define REP88_ERROR_MESSAGE_LENGTH 0x23 -#define REP88_ERROR_RESERVED_FIELD 0x24 -#define REP88_ERROR_KEY_TYPE 0x34 -#define REP88_ERROR_INVALID_KEY 0x82 -#define REP88_ERROR_OPERAND 0x84 -#define REP88_ERROR_OPERAND_EVEN_MOD 0x85 - -#define CALLER_HEADER 12 - -static inline int -testq(int q_nr, int *q_depth, int *dev_type, struct ap_status_word *stat) -{ - int ccode; - - asm volatile -#ifdef CONFIG_64BIT - (" llgfr 0,%4 \n" - " slgr 1,1 \n" - " lgr 2,1 \n" - "0: .long 0xb2af0000 \n" - "1: ipm %0 \n" - " srl %0,28 \n" - " iihh %0,0 \n" - " iihl %0,0 \n" - " lgr %1,1 \n" - " lgr %3,2 \n" - " srl %3,24 \n" - " sll 2,24 \n" - " srl 2,24 \n" - " lgr %2,2 \n" - "2: \n" - ".section .fixup,\"ax\" \n" - "3: \n" - " lhi %0,%h5 \n" - " jg 2b \n" - ".previous \n" - ".section __ex_table,\"a\" \n" - " .align 8 \n" - " .quad 0b,3b \n" - " .quad 1b,3b \n" - ".previous" - :"=d" (ccode),"=d" (*stat),"=d" (*q_depth), "=d" (*dev_type) - :"d" (q_nr), "K" (DEV_TSQ_EXCEPTION) - :"cc","0","1","2","memory"); -#else - (" lr 0,%4 \n" - " slr 1,1 \n" - " lr 2,1 \n" - "0: .long 0xb2af0000 \n" - "1: ipm %0 \n" - " srl %0,28 \n" - " lr %1,1 \n" - " lr %3,2 \n" - " srl %3,24 \n" - " sll 2,24 \n" - " srl 2,24 \n" - " lr %2,2 \n" - "2: \n" - ".section .fixup,\"ax\" \n" - "3: \n" - " lhi %0,%h5 \n" - " bras 1,4f \n" - " .long 2b \n" - "4: \n" - " l 1,0(1) \n" - " br 1 \n" - ".previous \n" - ".section __ex_table,\"a\" \n" - " .align 4 \n" - " .long 0b,3b \n" - " .long 1b,3b \n" - ".previous" - :"=d" (ccode),"=d" (*stat),"=d" (*q_depth), "=d" (*dev_type) - :"d" (q_nr), "K" (DEV_TSQ_EXCEPTION) - :"cc","0","1","2","memory"); -#endif - return ccode; -} - -static inline int -resetq(int q_nr, struct ap_status_word *stat_p) -{ - int ccode; - - asm volatile -#ifdef CONFIG_64BIT - (" llgfr 0,%2 \n" - " lghi 1,1 \n" - " sll 1,24 \n" - " or 0,1 \n" - " slgr 1,1 \n" - " lgr 2,1 \n" - "0: .long 0xb2af0000 \n" - "1: ipm %0 \n" - " srl %0,28 \n" - " iihh %0,0 \n" - " iihl %0,0 \n" - " lgr %1,1 \n" - "2: \n" - ".section .fixup,\"ax\" \n" - "3: \n" - " lhi %0,%h3 \n" - " jg 2b \n" - ".previous \n" - ".section __ex_table,\"a\" \n" - " .align 8 \n" - " .quad 0b,3b \n" - " .quad 1b,3b \n" - ".previous" - :"=d" (ccode),"=d" (*stat_p) - :"d" (q_nr), "K" (DEV_RSQ_EXCEPTION) - :"cc","0","1","2","memory"); -#else - (" lr 0,%2 \n" - " lhi 1,1 \n" - " sll 1,24 \n" - " or 0,1 \n" - " slr 1,1 \n" - " lr 2,1 \n" - "0: .long 0xb2af0000 \n" - "1: ipm %0 \n" - " srl %0,28 \n" - " lr %1,1 \n" - "2: \n" - ".section .fixup,\"ax\" \n" - "3: \n" - " lhi %0,%h3 \n" - " bras 1,4f \n" - " .long 2b \n" - "4: \n" - " l 1,0(1) \n" - " br 1 \n" - ".previous \n" - ".section __ex_table,\"a\" \n" - " .align 4 \n" - " .long 0b,3b \n" - " .long 1b,3b \n" - ".previous" - :"=d" (ccode),"=d" (*stat_p) - :"d" (q_nr), "K" (DEV_RSQ_EXCEPTION) - :"cc","0","1","2","memory"); -#endif - return ccode; -} - -static inline int -sen(int msg_len, unsigned char *msg_ext, struct ap_status_word *stat) -{ - int ccode; - - asm volatile -#ifdef CONFIG_64BIT - (" lgr 6,%3 \n" - " llgfr 7,%2 \n" - " llgt 0,0(6) \n" - " lghi 1,64 \n" - " sll 1,24 \n" - " or 0,1 \n" - " la 6,4(6) \n" - " llgt 2,0(6) \n" - " llgt 3,4(6) \n" - " la 6,8(6) \n" - " slr 1,1 \n" - "0: .long 0xb2ad0026 \n" - "1: brc 2,0b \n" - " ipm %0 \n" - " srl %0,28 \n" - " iihh %0,0 \n" - " iihl %0,0 \n" - " lgr %1,1 \n" - "2: \n" - ".section .fixup,\"ax\" \n" - "3: \n" - " lhi %0,%h4 \n" - " jg 2b \n" - ".previous \n" - ".section __ex_table,\"a\" \n" - " .align 8 \n" - " .quad 0b,3b \n" - " .quad 1b,3b \n" - ".previous" - :"=d" (ccode),"=d" (*stat) - :"d" (msg_len),"a" (msg_ext), "K" (DEV_SEN_EXCEPTION) - :"cc","0","1","2","3","6","7","memory"); -#else - (" lr 6,%3 \n" - " lr 7,%2 \n" - " l 0,0(6) \n" - " lhi 1,64 \n" - " sll 1,24 \n" - " or 0,1 \n" - " la 6,4(6) \n" - " l 2,0(6) \n" - " l 3,4(6) \n" - " la 6,8(6) \n" - " slr 1,1 \n" - "0: .long 0xb2ad0026 \n" - "1: brc 2,0b \n" - " ipm %0 \n" - " srl %0,28 \n" - " lr %1,1 \n" - "2: \n" - ".section .fixup,\"ax\" \n" - "3: \n" - " lhi %0,%h4 \n" - " bras 1,4f \n" - " .long 2b \n" - "4: \n" - " l 1,0(1) \n" - " br 1 \n" - ".previous \n" - ".section __ex_table,\"a\" \n" - " .align 4 \n" - " .long 0b,3b \n" - " .long 1b,3b \n" - ".previous" - :"=d" (ccode),"=d" (*stat) - :"d" (msg_len),"a" (msg_ext), "K" (DEV_SEN_EXCEPTION) - :"cc","0","1","2","3","6","7","memory"); -#endif - return ccode; -} - -static inline int -rec(int q_nr, int buff_l, unsigned char *rsp, unsigned char *id, - struct ap_status_word *st) -{ - int ccode; - - asm volatile -#ifdef CONFIG_64BIT - (" llgfr 0,%2 \n" - " lgr 3,%4 \n" - " lgr 6,%3 \n" - " llgfr 7,%5 \n" - " lghi 1,128 \n" - " sll 1,24 \n" - " or 0,1 \n" - " slgr 1,1 \n" - " lgr 2,1 \n" - " lgr 4,1 \n" - " lgr 5,1 \n" - "0: .long 0xb2ae0046 \n" - "1: brc 2,0b \n" - " brc 4,0b \n" - " ipm %0 \n" - " srl %0,28 \n" - " iihh %0,0 \n" - " iihl %0,0 \n" - " lgr %1,1 \n" - " st 4,0(3) \n" - " st 5,4(3) \n" - "2: \n" - ".section .fixup,\"ax\" \n" - "3: \n" - " lhi %0,%h6 \n" - " jg 2b \n" - ".previous \n" - ".section __ex_table,\"a\" \n" - " .align 8 \n" - " .quad 0b,3b \n" - " .quad 1b,3b \n" - ".previous" - :"=d"(ccode),"=d"(*st) - :"d" (q_nr), "d" (rsp), "d" (id), "d" (buff_l), "K" (DEV_REC_EXCEPTION) - :"cc","0","1","2","3","4","5","6","7","memory"); -#else - (" lr 0,%2 \n" - " lr 3,%4 \n" - " lr 6,%3 \n" - " lr 7,%5 \n" - " lhi 1,128 \n" - " sll 1,24 \n" - " or 0,1 \n" - " slr 1,1 \n" - " lr 2,1 \n" - " lr 4,1 \n" - " lr 5,1 \n" - "0: .long 0xb2ae0046 \n" - "1: brc 2,0b \n" - " brc 4,0b \n" - " ipm %0 \n" - " srl %0,28 \n" - " lr %1,1 \n" - " st 4,0(3) \n" - " st 5,4(3) \n" - "2: \n" - ".section .fixup,\"ax\" \n" - "3: \n" - " lhi %0,%h6 \n" - " bras 1,4f \n" - " .long 2b \n" - "4: \n" - " l 1,0(1) \n" - " br 1 \n" - ".previous \n" - ".section __ex_table,\"a\" \n" - " .align 4 \n" - " .long 0b,3b \n" - " .long 1b,3b \n" - ".previous" - :"=d"(ccode),"=d"(*st) - :"d" (q_nr), "d" (rsp), "d" (id), "d" (buff_l), "K" (DEV_REC_EXCEPTION) - :"cc","0","1","2","3","4","5","6","7","memory"); -#endif - return ccode; -} - -static inline void -itoLe2(int *i_p, unsigned char *lechars) -{ - *lechars = *((unsigned char *) i_p + sizeof(int) - 1); - *(lechars + 1) = *((unsigned char *) i_p + sizeof(int) - 2); -} - -static inline void -le2toI(unsigned char *lechars, int *i_p) -{ - unsigned char *ic_p; - *i_p = 0; - ic_p = (unsigned char *) i_p; - *(ic_p + 2) = *(lechars + 1); - *(ic_p + 3) = *(lechars); -} - -static inline int -is_empty(unsigned char *ptr, int len) -{ - return !memcmp(ptr, (unsigned char *) &static_pvt_me_key+60, len); -} - -enum hdstat -query_online(int deviceNr, int cdx, int resetNr, int *q_depth, int *dev_type) -{ - int q_nr, i, t_depth, t_dev_type; - enum devstat ccode; - struct ap_status_word stat_word; - enum hdstat stat; - int break_out; - - q_nr = (deviceNr << SKIP_BITL) + cdx; - stat = HD_BUSY; - ccode = testq(q_nr, &t_depth, &t_dev_type, &stat_word); - PDEBUG("ccode %d response_code %02X\n", ccode, stat_word.response_code); - break_out = 0; - for (i = 0; i < resetNr; i++) { - if (ccode > 3) { - PRINTKC("Exception testing device %d\n", i); - return HD_TSQ_EXCEPTION; - } - switch (ccode) { - case 0: - PDEBUG("t_dev_type %d\n", t_dev_type); - break_out = 1; - stat = HD_ONLINE; - *q_depth = t_depth + 1; - switch (t_dev_type) { - case PCICA_HW: - *dev_type = PCICA; - break; - case PCICC_HW: - *dev_type = PCICC; - break; - case PCIXCC_HW: - *dev_type = PCIXCC_UNK; - break; - case CEX2C_HW: - *dev_type = CEX2C; - break; - case CEX2A_HW: - *dev_type = CEX2A; - break; - default: - *dev_type = NILDEV; - break; - } - PDEBUG("available device %d: Q depth = %d, dev " - "type = %d, stat = %02X%02X%02X%02X\n", - deviceNr, *q_depth, *dev_type, - stat_word.q_stat_flags, - stat_word.response_code, - stat_word.reserved[0], - stat_word.reserved[1]); - break; - case 3: - switch (stat_word.response_code) { - case AP_RESPONSE_NORMAL: - stat = HD_ONLINE; - break_out = 1; - *q_depth = t_depth + 1; - *dev_type = t_dev_type; - PDEBUG("cc3, available device " - "%d: Q depth = %d, dev " - "type = %d, stat = " - "%02X%02X%02X%02X\n", - deviceNr, *q_depth, - *dev_type, - stat_word.q_stat_flags, - stat_word.response_code, - stat_word.reserved[0], - stat_word.reserved[1]); - break; - case AP_RESPONSE_Q_NOT_AVAIL: - stat = HD_NOT_THERE; - break_out = 1; - break; - case AP_RESPONSE_RESET_IN_PROGRESS: - PDEBUG("device %d in reset\n", - deviceNr); - break; - case AP_RESPONSE_DECONFIGURED: - stat = HD_DECONFIGURED; - break_out = 1; - break; - case AP_RESPONSE_CHECKSTOPPED: - stat = HD_CHECKSTOPPED; - break_out = 1; - break; - case AP_RESPONSE_BUSY: - PDEBUG("device %d busy\n", - deviceNr); - break; - default: - break; - } - break; - default: - stat = HD_NOT_THERE; - break_out = 1; - break; - } - if (break_out) - break; - - udelay(5); - - ccode = testq(q_nr, &t_depth, &t_dev_type, &stat_word); - } - return stat; -} - -enum devstat -reset_device(int deviceNr, int cdx, int resetNr) -{ - int q_nr, ccode = 0, dummy_qdepth, dummy_devType, i; - struct ap_status_word stat_word; - enum devstat stat; - int break_out; - - q_nr = (deviceNr << SKIP_BITL) + cdx; - stat = DEV_GONE; - ccode = resetq(q_nr, &stat_word); - if (ccode > 3) - return DEV_RSQ_EXCEPTION; - - break_out = 0; - for (i = 0; i < resetNr; i++) { - switch (ccode) { - case 0: - stat = DEV_ONLINE; - if (stat_word.q_stat_flags & AP_Q_STATUS_EMPTY) - break_out = 1; - break; - case 3: - switch (stat_word.response_code) { - case AP_RESPONSE_NORMAL: - stat = DEV_ONLINE; - if (stat_word.q_stat_flags & AP_Q_STATUS_EMPTY) - break_out = 1; - break; - case AP_RESPONSE_Q_NOT_AVAIL: - case AP_RESPONSE_DECONFIGURED: - case AP_RESPONSE_CHECKSTOPPED: - stat = DEV_GONE; - break_out = 1; - break; - case AP_RESPONSE_RESET_IN_PROGRESS: - case AP_RESPONSE_BUSY: - default: - break; - } - break; - default: - stat = DEV_GONE; - break_out = 1; - break; - } - if (break_out == 1) - break; - udelay(5); - - ccode = testq(q_nr, &dummy_qdepth, &dummy_devType, &stat_word); - if (ccode > 3) { - stat = DEV_TSQ_EXCEPTION; - break; - } - } - PDEBUG("Number of testq's needed for reset: %d\n", i); - - if (i >= resetNr) { - stat = DEV_GONE; - } - - return stat; -} - -#ifdef DEBUG_HYDRA_MSGS -static inline void -print_buffer(unsigned char *buffer, int bufflen) -{ - int i; - for (i = 0; i < bufflen; i += 16) { - PRINTK("%04X: %02X%02X%02X%02X %02X%02X%02X%02X " - "%02X%02X%02X%02X %02X%02X%02X%02X\n", i, - buffer[i+0], buffer[i+1], buffer[i+2], buffer[i+3], - buffer[i+4], buffer[i+5], buffer[i+6], buffer[i+7], - buffer[i+8], buffer[i+9], buffer[i+10], buffer[i+11], - buffer[i+12], buffer[i+13], buffer[i+14], buffer[i+15]); - } -} -#endif - -enum devstat -send_to_AP(int dev_nr, int cdx, int msg_len, unsigned char *msg_ext) -{ - struct ap_status_word stat_word; - enum devstat stat; - int ccode; - u32 *q_nr_p = (u32 *)msg_ext; - - *q_nr_p = (dev_nr << SKIP_BITL) + cdx; - PDEBUG("msg_len passed to sen: %d\n", msg_len); - PDEBUG("q number passed to sen: %02x%02x%02x%02x\n", - msg_ext[0], msg_ext[1], msg_ext[2], msg_ext[3]); - stat = DEV_GONE; - -#ifdef DEBUG_HYDRA_MSGS - PRINTK("Request header: %02X%02X%02X%02X %02X%02X%02X%02X " - "%02X%02X%02X%02X\n", - msg_ext[0], msg_ext[1], msg_ext[2], msg_ext[3], - msg_ext[4], msg_ext[5], msg_ext[6], msg_ext[7], - msg_ext[8], msg_ext[9], msg_ext[10], msg_ext[11]); - print_buffer(msg_ext+CALLER_HEADER, msg_len); -#endif - - ccode = sen(msg_len, msg_ext, &stat_word); - if (ccode > 3) - return DEV_SEN_EXCEPTION; - - PDEBUG("nq cc: %u, st: %02x%02x%02x%02x\n", - ccode, stat_word.q_stat_flags, stat_word.response_code, - stat_word.reserved[0], stat_word.reserved[1]); - switch (ccode) { - case 0: - stat = DEV_ONLINE; - break; - case 1: - stat = DEV_GONE; - break; - case 3: - switch (stat_word.response_code) { - case AP_RESPONSE_NORMAL: - stat = DEV_ONLINE; - break; - case AP_RESPONSE_Q_FULL: - stat = DEV_QUEUE_FULL; - break; - default: - stat = DEV_GONE; - break; - } - break; - default: - stat = DEV_GONE; - break; - } - - return stat; -} - -enum devstat -receive_from_AP(int dev_nr, int cdx, int resplen, unsigned char *resp, - unsigned char *psmid) -{ - int ccode; - struct ap_status_word stat_word; - enum devstat stat; - - memset(resp, 0x00, 8); - - ccode = rec((dev_nr << SKIP_BITL) + cdx, resplen, resp, psmid, - &stat_word); - if (ccode > 3) - return DEV_REC_EXCEPTION; - - PDEBUG("dq cc: %u, st: %02x%02x%02x%02x\n", - ccode, stat_word.q_stat_flags, stat_word.response_code, - stat_word.reserved[0], stat_word.reserved[1]); - - stat = DEV_GONE; - switch (ccode) { - case 0: - stat = DEV_ONLINE; -#ifdef DEBUG_HYDRA_MSGS - print_buffer(resp, resplen); -#endif - break; - case 3: - switch (stat_word.response_code) { - case AP_RESPONSE_NORMAL: - stat = DEV_ONLINE; - break; - case AP_RESPONSE_NO_PENDING_REPLY: - if (stat_word.q_stat_flags & AP_Q_STATUS_EMPTY) - stat = DEV_EMPTY; - else - stat = DEV_NO_WORK; - break; - case AP_RESPONSE_INDEX_TOO_BIG: - case AP_RESPONSE_NO_FIRST_PART: - case AP_RESPONSE_MESSAGE_TOO_BIG: - stat = DEV_BAD_MESSAGE; - break; - default: - break; - } - break; - default: - break; - } - - return stat; -} - -static inline int -pad_msg(unsigned char *buffer, int totalLength, int msgLength) -{ - int pad_len; - - for (pad_len = 0; pad_len < (totalLength - msgLength); pad_len++) - if (buffer[pad_len] != 0x00) - break; - pad_len -= 3; - if (pad_len < 8) - return SEN_PAD_ERROR; - - buffer[0] = 0x00; - buffer[1] = 0x02; - - memcpy(buffer+2, static_pad, pad_len); - - buffer[pad_len + 2] = 0x00; - - return 0; -} - -static inline int -is_common_public_key(unsigned char *key, int len) -{ - int i; - - for (i = 0; i < len; i++) - if (key[i]) - break; - key += i; - len -= i; - if (((len == 1) && (key[0] == 3)) || - ((len == 3) && (key[0] == 1) && (key[1] == 0) && (key[2] == 1))) - return 1; - - return 0; -} - -static int -ICAMEX_msg_to_type4MEX_msg(struct ica_rsa_modexpo *icaMex_p, int *z90cMsg_l_p, - union type4_msg *z90cMsg_p) -{ - int mod_len, msg_size, mod_tgt_len, exp_tgt_len, inp_tgt_len; - unsigned char *mod_tgt, *exp_tgt, *inp_tgt; - union type4_msg *tmp_type4_msg; - - mod_len = icaMex_p->inputdatalength; - - msg_size = ((mod_len <= 128) ? TYPE4_SME_LEN : TYPE4_LME_LEN) + - CALLER_HEADER; - - memset(z90cMsg_p, 0, msg_size); - - tmp_type4_msg = (union type4_msg *) - ((unsigned char *) z90cMsg_p + CALLER_HEADER); - - tmp_type4_msg->sme.header.msg_type_code = TYPE4_TYPE_CODE; - tmp_type4_msg->sme.header.request_code = TYPE4_REQU_CODE; - - if (mod_len <= 128) { - tmp_type4_msg->sme.header.msg_fmt = TYPE4_SME_FMT; - tmp_type4_msg->sme.header.msg_len = TYPE4_SME_LEN; - mod_tgt = tmp_type4_msg->sme.modulus; - mod_tgt_len = sizeof(tmp_type4_msg->sme.modulus); - exp_tgt = tmp_type4_msg->sme.exponent; - exp_tgt_len = sizeof(tmp_type4_msg->sme.exponent); - inp_tgt = tmp_type4_msg->sme.message; - inp_tgt_len = sizeof(tmp_type4_msg->sme.message); - } else { - tmp_type4_msg->lme.header.msg_fmt = TYPE4_LME_FMT; - tmp_type4_msg->lme.header.msg_len = TYPE4_LME_LEN; - mod_tgt = tmp_type4_msg->lme.modulus; - mod_tgt_len = sizeof(tmp_type4_msg->lme.modulus); - exp_tgt = tmp_type4_msg->lme.exponent; - exp_tgt_len = sizeof(tmp_type4_msg->lme.exponent); - inp_tgt = tmp_type4_msg->lme.message; - inp_tgt_len = sizeof(tmp_type4_msg->lme.message); - } - - mod_tgt += (mod_tgt_len - mod_len); - if (copy_from_user(mod_tgt, icaMex_p->n_modulus, mod_len)) - return SEN_RELEASED; - if (is_empty(mod_tgt, mod_len)) - return SEN_USER_ERROR; - exp_tgt += (exp_tgt_len - mod_len); - if (copy_from_user(exp_tgt, icaMex_p->b_key, mod_len)) - return SEN_RELEASED; - if (is_empty(exp_tgt, mod_len)) - return SEN_USER_ERROR; - inp_tgt += (inp_tgt_len - mod_len); - if (copy_from_user(inp_tgt, icaMex_p->inputdata, mod_len)) - return SEN_RELEASED; - if (is_empty(inp_tgt, mod_len)) - return SEN_USER_ERROR; - - *z90cMsg_l_p = msg_size - CALLER_HEADER; - - return 0; -} - -static int -ICACRT_msg_to_type4CRT_msg(struct ica_rsa_modexpo_crt *icaMsg_p, - int *z90cMsg_l_p, union type4_msg *z90cMsg_p) -{ - int mod_len, short_len, long_len, tmp_size, p_tgt_len, q_tgt_len, - dp_tgt_len, dq_tgt_len, u_tgt_len, inp_tgt_len; - unsigned char *p_tgt, *q_tgt, *dp_tgt, *dq_tgt, *u_tgt, *inp_tgt; - union type4_msg *tmp_type4_msg; - - mod_len = icaMsg_p->inputdatalength; - short_len = mod_len / 2; - long_len = mod_len / 2 + 8; - - tmp_size = ((mod_len <= 128) ? TYPE4_SCR_LEN : TYPE4_LCR_LEN) + - CALLER_HEADER; - - memset(z90cMsg_p, 0, tmp_size); - - tmp_type4_msg = (union type4_msg *) - ((unsigned char *) z90cMsg_p + CALLER_HEADER); - - tmp_type4_msg->scr.header.msg_type_code = TYPE4_TYPE_CODE; - tmp_type4_msg->scr.header.request_code = TYPE4_REQU_CODE; - if (mod_len <= 128) { - tmp_type4_msg->scr.header.msg_fmt = TYPE4_SCR_FMT; - tmp_type4_msg->scr.header.msg_len = TYPE4_SCR_LEN; - p_tgt = tmp_type4_msg->scr.p; - p_tgt_len = sizeof(tmp_type4_msg->scr.p); - q_tgt = tmp_type4_msg->scr.q; - q_tgt_len = sizeof(tmp_type4_msg->scr.q); - dp_tgt = tmp_type4_msg->scr.dp; - dp_tgt_len = sizeof(tmp_type4_msg->scr.dp); - dq_tgt = tmp_type4_msg->scr.dq; - dq_tgt_len = sizeof(tmp_type4_msg->scr.dq); - u_tgt = tmp_type4_msg->scr.u; - u_tgt_len = sizeof(tmp_type4_msg->scr.u); - inp_tgt = tmp_type4_msg->scr.message; - inp_tgt_len = sizeof(tmp_type4_msg->scr.message); - } else { - tmp_type4_msg->lcr.header.msg_fmt = TYPE4_LCR_FMT; - tmp_type4_msg->lcr.header.msg_len = TYPE4_LCR_LEN; - p_tgt = tmp_type4_msg->lcr.p; - p_tgt_len = sizeof(tmp_type4_msg->lcr.p); - q_tgt = tmp_type4_msg->lcr.q; - q_tgt_len = sizeof(tmp_type4_msg->lcr.q); - dp_tgt = tmp_type4_msg->lcr.dp; - dp_tgt_len = sizeof(tmp_type4_msg->lcr.dp); - dq_tgt = tmp_type4_msg->lcr.dq; - dq_tgt_len = sizeof(tmp_type4_msg->lcr.dq); - u_tgt = tmp_type4_msg->lcr.u; - u_tgt_len = sizeof(tmp_type4_msg->lcr.u); - inp_tgt = tmp_type4_msg->lcr.message; - inp_tgt_len = sizeof(tmp_type4_msg->lcr.message); - } - - p_tgt += (p_tgt_len - long_len); - if (copy_from_user(p_tgt, icaMsg_p->np_prime, long_len)) - return SEN_RELEASED; - if (is_empty(p_tgt, long_len)) - return SEN_USER_ERROR; - q_tgt += (q_tgt_len - short_len); - if (copy_from_user(q_tgt, icaMsg_p->nq_prime, short_len)) - return SEN_RELEASED; - if (is_empty(q_tgt, short_len)) - return SEN_USER_ERROR; - dp_tgt += (dp_tgt_len - long_len); - if (copy_from_user(dp_tgt, icaMsg_p->bp_key, long_len)) - return SEN_RELEASED; - if (is_empty(dp_tgt, long_len)) - return SEN_USER_ERROR; - dq_tgt += (dq_tgt_len - short_len); - if (copy_from_user(dq_tgt, icaMsg_p->bq_key, short_len)) - return SEN_RELEASED; - if (is_empty(dq_tgt, short_len)) - return SEN_USER_ERROR; - u_tgt += (u_tgt_len - long_len); - if (copy_from_user(u_tgt, icaMsg_p->u_mult_inv, long_len)) - return SEN_RELEASED; - if (is_empty(u_tgt, long_len)) - return SEN_USER_ERROR; - inp_tgt += (inp_tgt_len - mod_len); - if (copy_from_user(inp_tgt, icaMsg_p->inputdata, mod_len)) - return SEN_RELEASED; - if (is_empty(inp_tgt, mod_len)) - return SEN_USER_ERROR; - - *z90cMsg_l_p = tmp_size - CALLER_HEADER; - - return 0; -} - -static int -ICAMEX_msg_to_type6MEX_de_msg(struct ica_rsa_modexpo *icaMsg_p, int cdx, - int *z90cMsg_l_p, struct type6_msg *z90cMsg_p) -{ - int mod_len, vud_len, tmp_size, total_CPRB_len, parmBlock_l; - unsigned char *temp; - struct type6_hdr *tp6Hdr_p; - struct CPRB *cprb_p; - struct cca_private_ext_ME *key_p; - static int deprecated_msg_count = 0; - - mod_len = icaMsg_p->inputdatalength; - tmp_size = FIXED_TYPE6_ME_LEN + mod_len; - total_CPRB_len = tmp_size - sizeof(struct type6_hdr); - parmBlock_l = total_CPRB_len - sizeof(struct CPRB); - tmp_size = 4*((tmp_size + 3)/4) + CALLER_HEADER; - - memset(z90cMsg_p, 0, tmp_size); - - temp = (unsigned char *)z90cMsg_p + CALLER_HEADER; - memcpy(temp, &static_type6_hdr, sizeof(struct type6_hdr)); - tp6Hdr_p = (struct type6_hdr *)temp; - tp6Hdr_p->ToCardLen1 = 4*((total_CPRB_len+3)/4); - tp6Hdr_p->FromCardLen1 = RESPONSE_CPRB_SIZE; - - temp += sizeof(struct type6_hdr); - memcpy(temp, &static_cprb, sizeof(struct CPRB)); - cprb_p = (struct CPRB *) temp; - cprb_p->usage_domain[0]= (unsigned char)cdx; - itoLe2(&parmBlock_l, cprb_p->req_parml); - itoLe2((int *)&(tp6Hdr_p->FromCardLen1), cprb_p->rpl_parml); - - temp += sizeof(struct CPRB); - memcpy(temp, &static_pkd_function_and_rules, - sizeof(struct function_and_rules_block)); - - temp += sizeof(struct function_and_rules_block); - vud_len = 2 + icaMsg_p->inputdatalength; - itoLe2(&vud_len, temp); - - temp += 2; - if (copy_from_user(temp, icaMsg_p->inputdata, mod_len)) - return SEN_RELEASED; - if (is_empty(temp, mod_len)) - return SEN_USER_ERROR; - - temp += mod_len; - memcpy(temp, &static_T6_keyBlock_hdr, sizeof(struct T6_keyBlock_hdr)); - - temp += sizeof(struct T6_keyBlock_hdr); - memcpy(temp, &static_pvt_me_key, sizeof(struct cca_private_ext_ME)); - key_p = (struct cca_private_ext_ME *)temp; - temp = key_p->pvtMESec.exponent + sizeof(key_p->pvtMESec.exponent) - - mod_len; - if (copy_from_user(temp, icaMsg_p->b_key, mod_len)) - return SEN_RELEASED; - if (is_empty(temp, mod_len)) - return SEN_USER_ERROR; - - if (is_common_public_key(temp, mod_len)) { - if (deprecated_msg_count < 20) { - PRINTK("Common public key used for modex decrypt\n"); - deprecated_msg_count++; - if (deprecated_msg_count == 20) - PRINTK("No longer issuing messages about common" - " public key for modex decrypt.\n"); - } - return SEN_NOT_AVAIL; - } - - temp = key_p->pvtMESec.modulus + sizeof(key_p->pvtMESec.modulus) - - mod_len; - if (copy_from_user(temp, icaMsg_p->n_modulus, mod_len)) - return SEN_RELEASED; - if (is_empty(temp, mod_len)) - return SEN_USER_ERROR; - - key_p->pubMESec.modulus_bit_len = 8 * mod_len; - - *z90cMsg_l_p = tmp_size - CALLER_HEADER; - - return 0; -} - -static int -ICAMEX_msg_to_type6MEX_en_msg(struct ica_rsa_modexpo *icaMsg_p, int cdx, - int *z90cMsg_l_p, struct type6_msg *z90cMsg_p) -{ - int mod_len, vud_len, exp_len, key_len; - int pad_len, tmp_size, total_CPRB_len, parmBlock_l, i; - unsigned char *temp_exp, *exp_p, *temp; - struct type6_hdr *tp6Hdr_p; - struct CPRB *cprb_p; - struct cca_public_key *key_p; - struct T6_keyBlock_hdr *keyb_p; - - temp_exp = kmalloc(256, GFP_KERNEL); - if (!temp_exp) - return EGETBUFF; - mod_len = icaMsg_p->inputdatalength; - if (copy_from_user(temp_exp, icaMsg_p->b_key, mod_len)) { - kfree(temp_exp); - return SEN_RELEASED; - } - if (is_empty(temp_exp, mod_len)) { - kfree(temp_exp); - return SEN_USER_ERROR; - } - - exp_p = temp_exp; - for (i = 0; i < mod_len; i++) - if (exp_p[i]) - break; - if (i >= mod_len) { - kfree(temp_exp); - return SEN_USER_ERROR; - } - - exp_len = mod_len - i; - exp_p += i; - - PDEBUG("exp_len after computation: %08x\n", exp_len); - tmp_size = FIXED_TYPE6_ME_EN_LEN + 2 * mod_len + exp_len; - total_CPRB_len = tmp_size - sizeof(struct type6_hdr); - parmBlock_l = total_CPRB_len - sizeof(struct CPRB); - tmp_size = 4*((tmp_size + 3)/4) + CALLER_HEADER; - - vud_len = 2 + mod_len; - memset(z90cMsg_p, 0, tmp_size); - - temp = (unsigned char *)z90cMsg_p + CALLER_HEADER; - memcpy(temp, &static_type6_hdr, sizeof(struct type6_hdr)); - tp6Hdr_p = (struct type6_hdr *)temp; - tp6Hdr_p->ToCardLen1 = 4*((total_CPRB_len+3)/4); - tp6Hdr_p->FromCardLen1 = RESPONSE_CPRB_SIZE; - memcpy(tp6Hdr_p->function_code, static_PKE_function_code, - sizeof(static_PKE_function_code)); - temp += sizeof(struct type6_hdr); - memcpy(temp, &static_cprb, sizeof(struct CPRB)); - cprb_p = (struct CPRB *) temp; - cprb_p->usage_domain[0]= (unsigned char)cdx; - itoLe2((int *)&(tp6Hdr_p->FromCardLen1), cprb_p->rpl_parml); - temp += sizeof(struct CPRB); - memcpy(temp, &static_pke_function_and_rules, - sizeof(struct function_and_rules_block)); - temp += sizeof(struct function_and_rules_block); - temp += 2; - if (copy_from_user(temp, icaMsg_p->inputdata, mod_len)) { - kfree(temp_exp); - return SEN_RELEASED; - } - if (is_empty(temp, mod_len)) { - kfree(temp_exp); - return SEN_USER_ERROR; - } - if ((temp[0] != 0x00) || (temp[1] != 0x02)) { - kfree(temp_exp); - return SEN_NOT_AVAIL; - } - for (i = 2; i < mod_len; i++) - if (temp[i] == 0x00) - break; - if ((i < 9) || (i > (mod_len - 2))) { - kfree(temp_exp); - return SEN_NOT_AVAIL; - } - pad_len = i + 1; - vud_len = mod_len - pad_len; - memmove(temp, temp+pad_len, vud_len); - temp -= 2; - vud_len += 2; - itoLe2(&vud_len, temp); - temp += (vud_len); - keyb_p = (struct T6_keyBlock_hdr *)temp; - temp += sizeof(struct T6_keyBlock_hdr); - memcpy(temp, &static_public_key, sizeof(static_public_key)); - key_p = (struct cca_public_key *)temp; - temp = key_p->pubSec.exponent; - memcpy(temp, exp_p, exp_len); - kfree(temp_exp); - temp += exp_len; - if (copy_from_user(temp, icaMsg_p->n_modulus, mod_len)) - return SEN_RELEASED; - if (is_empty(temp, mod_len)) - return SEN_USER_ERROR; - key_p->pubSec.modulus_bit_len = 8 * mod_len; - key_p->pubSec.modulus_byte_len = mod_len; - key_p->pubSec.exponent_len = exp_len; - key_p->pubSec.section_length = CALLER_HEADER + mod_len + exp_len; - key_len = key_p->pubSec.section_length + sizeof(struct cca_token_hdr); - key_p->pubHdr.token_length = key_len; - key_len += 4; - itoLe2(&key_len, keyb_p->ulen); - key_len += 2; - itoLe2(&key_len, keyb_p->blen); - parmBlock_l -= pad_len; - itoLe2(&parmBlock_l, cprb_p->req_parml); - *z90cMsg_l_p = tmp_size - CALLER_HEADER; - - return 0; -} - -static int -ICACRT_msg_to_type6CRT_msg(struct ica_rsa_modexpo_crt *icaMsg_p, int cdx, - int *z90cMsg_l_p, struct type6_msg *z90cMsg_p) -{ - int mod_len, vud_len, tmp_size, total_CPRB_len, parmBlock_l, short_len; - int long_len, pad_len, keyPartsLen, tmp_l; - unsigned char *tgt_p, *temp; - struct type6_hdr *tp6Hdr_p; - struct CPRB *cprb_p; - struct cca_token_hdr *keyHdr_p; - struct cca_pvt_ext_CRT_sec *pvtSec_p; - struct cca_public_sec *pubSec_p; - - mod_len = icaMsg_p->inputdatalength; - short_len = mod_len / 2; - long_len = 8 + short_len; - keyPartsLen = 3 * long_len + 2 * short_len; - pad_len = (8 - (keyPartsLen % 8)) % 8; - keyPartsLen += pad_len + mod_len; - tmp_size = FIXED_TYPE6_CR_LEN + keyPartsLen + mod_len; - total_CPRB_len = tmp_size - sizeof(struct type6_hdr); - parmBlock_l = total_CPRB_len - sizeof(struct CPRB); - vud_len = 2 + mod_len; - tmp_size = 4*((tmp_size + 3)/4) + CALLER_HEADER; - - memset(z90cMsg_p, 0, tmp_size); - tgt_p = (unsigned char *)z90cMsg_p + CALLER_HEADER; - memcpy(tgt_p, &static_type6_hdr, sizeof(struct type6_hdr)); - tp6Hdr_p = (struct type6_hdr *)tgt_p; - tp6Hdr_p->ToCardLen1 = 4*((total_CPRB_len+3)/4); - tp6Hdr_p->FromCardLen1 = RESPONSE_CPRB_SIZE; - tgt_p += sizeof(struct type6_hdr); - cprb_p = (struct CPRB *) tgt_p; - memcpy(tgt_p, &static_cprb, sizeof(struct CPRB)); - cprb_p->usage_domain[0]= *((unsigned char *)(&(cdx))+3); - itoLe2(&parmBlock_l, cprb_p->req_parml); - memcpy(cprb_p->rpl_parml, cprb_p->req_parml, - sizeof(cprb_p->req_parml)); - tgt_p += sizeof(struct CPRB); - memcpy(tgt_p, &static_pkd_function_and_rules, - sizeof(struct function_and_rules_block)); - tgt_p += sizeof(struct function_and_rules_block); - itoLe2(&vud_len, tgt_p); - tgt_p += 2; - if (copy_from_user(tgt_p, icaMsg_p->inputdata, mod_len)) - return SEN_RELEASED; - if (is_empty(tgt_p, mod_len)) - return SEN_USER_ERROR; - tgt_p += mod_len; - tmp_l = sizeof(struct T6_keyBlock_hdr) + sizeof(struct cca_token_hdr) + - sizeof(struct cca_pvt_ext_CRT_sec) + 0x0F + keyPartsLen; - itoLe2(&tmp_l, tgt_p); - temp = tgt_p + 2; - tmp_l -= 2; - itoLe2(&tmp_l, temp); - tgt_p += sizeof(struct T6_keyBlock_hdr); - keyHdr_p = (struct cca_token_hdr *)tgt_p; - keyHdr_p->token_identifier = CCA_TKN_HDR_ID_EXT; - tmp_l -= 4; - keyHdr_p->token_length = tmp_l; - tgt_p += sizeof(struct cca_token_hdr); - pvtSec_p = (struct cca_pvt_ext_CRT_sec *)tgt_p; - pvtSec_p->section_identifier = CCA_PVT_EXT_CRT_SEC_ID_PVT; - pvtSec_p->section_length = - sizeof(struct cca_pvt_ext_CRT_sec) + keyPartsLen; - pvtSec_p->key_format = CCA_PVT_EXT_CRT_SEC_FMT_CL; - pvtSec_p->key_use_flags[0] = CCA_PVT_USAGE_ALL; - pvtSec_p->p_len = long_len; - pvtSec_p->q_len = short_len; - pvtSec_p->dp_len = long_len; - pvtSec_p->dq_len = short_len; - pvtSec_p->u_len = long_len; - pvtSec_p->mod_len = mod_len; - pvtSec_p->pad_len = pad_len; - tgt_p += sizeof(struct cca_pvt_ext_CRT_sec); - if (copy_from_user(tgt_p, icaMsg_p->np_prime, long_len)) - return SEN_RELEASED; - if (is_empty(tgt_p, long_len)) - return SEN_USER_ERROR; - tgt_p += long_len; - if (copy_from_user(tgt_p, icaMsg_p->nq_prime, short_len)) - return SEN_RELEASED; - if (is_empty(tgt_p, short_len)) - return SEN_USER_ERROR; - tgt_p += short_len; - if (copy_from_user(tgt_p, icaMsg_p->bp_key, long_len)) - return SEN_RELEASED; - if (is_empty(tgt_p, long_len)) - return SEN_USER_ERROR; - tgt_p += long_len; - if (copy_from_user(tgt_p, icaMsg_p->bq_key, short_len)) - return SEN_RELEASED; - if (is_empty(tgt_p, short_len)) - return SEN_USER_ERROR; - tgt_p += short_len; - if (copy_from_user(tgt_p, icaMsg_p->u_mult_inv, long_len)) - return SEN_RELEASED; - if (is_empty(tgt_p, long_len)) - return SEN_USER_ERROR; - tgt_p += long_len; - tgt_p += pad_len; - memset(tgt_p, 0xFF, mod_len); - tgt_p += mod_len; - memcpy(tgt_p, &static_cca_pub_sec, sizeof(struct cca_public_sec)); - pubSec_p = (struct cca_public_sec *) tgt_p; - pubSec_p->modulus_bit_len = 8 * mod_len; - *z90cMsg_l_p = tmp_size - CALLER_HEADER; - - return 0; -} - -static int -ICAMEX_msg_to_type6MEX_msgX(struct ica_rsa_modexpo *icaMsg_p, int cdx, - int *z90cMsg_l_p, struct type6_msg *z90cMsg_p, - int dev_type) -{ - int mod_len, exp_len, vud_len, tmp_size, total_CPRB_len, parmBlock_l; - int key_len, i; - unsigned char *temp_exp, *tgt_p, *temp, *exp_p; - struct type6_hdr *tp6Hdr_p; - struct CPRBX *cprbx_p; - struct cca_public_key *key_p; - struct T6_keyBlock_hdrX *keyb_p; - - temp_exp = kmalloc(256, GFP_KERNEL); - if (!temp_exp) - return EGETBUFF; - mod_len = icaMsg_p->inputdatalength; - if (copy_from_user(temp_exp, icaMsg_p->b_key, mod_len)) { - kfree(temp_exp); - return SEN_RELEASED; - } - if (is_empty(temp_exp, mod_len)) { - kfree(temp_exp); - return SEN_USER_ERROR; - } - exp_p = temp_exp; - for (i = 0; i < mod_len; i++) - if (exp_p[i]) - break; - if (i >= mod_len) { - kfree(temp_exp); - return SEN_USER_ERROR; - } - exp_len = mod_len - i; - exp_p += i; - PDEBUG("exp_len after computation: %08x\n", exp_len); - tmp_size = FIXED_TYPE6_ME_EN_LENX + 2 * mod_len + exp_len; - total_CPRB_len = tmp_size - sizeof(struct type6_hdr); - parmBlock_l = total_CPRB_len - sizeof(struct CPRBX); - tmp_size = tmp_size + CALLER_HEADER; - vud_len = 2 + mod_len; - memset(z90cMsg_p, 0, tmp_size); - tgt_p = (unsigned char *)z90cMsg_p + CALLER_HEADER; - memcpy(tgt_p, &static_type6_hdrX, sizeof(struct type6_hdr)); - tp6Hdr_p = (struct type6_hdr *)tgt_p; - tp6Hdr_p->ToCardLen1 = total_CPRB_len; - tp6Hdr_p->FromCardLen1 = RESPONSE_CPRBX_SIZE; - memcpy(tp6Hdr_p->function_code, static_PKE_function_code, - sizeof(static_PKE_function_code)); - tgt_p += sizeof(struct type6_hdr); - memcpy(tgt_p, &static_cprbx, sizeof(struct CPRBX)); - cprbx_p = (struct CPRBX *) tgt_p; - cprbx_p->domain = (unsigned short)cdx; - cprbx_p->rpl_msgbl = RESPONSE_CPRBX_SIZE; - tgt_p += sizeof(struct CPRBX); - if (dev_type == PCIXCC_MCL2) - memcpy(tgt_p, &static_pke_function_and_rulesX_MCL2, - sizeof(struct function_and_rules_block)); - else - memcpy(tgt_p, &static_pke_function_and_rulesX, - sizeof(struct function_and_rules_block)); - tgt_p += sizeof(struct function_and_rules_block); - - tgt_p += 2; - if (copy_from_user(tgt_p, icaMsg_p->inputdata, mod_len)) { - kfree(temp_exp); - return SEN_RELEASED; - } - if (is_empty(tgt_p, mod_len)) { - kfree(temp_exp); - return SEN_USER_ERROR; - } - tgt_p -= 2; - *((short *)tgt_p) = (short) vud_len; - tgt_p += vud_len; - keyb_p = (struct T6_keyBlock_hdrX *)tgt_p; - tgt_p += sizeof(struct T6_keyBlock_hdrX); - memcpy(tgt_p, &static_public_key, sizeof(static_public_key)); - key_p = (struct cca_public_key *)tgt_p; - temp = key_p->pubSec.exponent; - memcpy(temp, exp_p, exp_len); - kfree(temp_exp); - temp += exp_len; - if (copy_from_user(temp, icaMsg_p->n_modulus, mod_len)) - return SEN_RELEASED; - if (is_empty(temp, mod_len)) - return SEN_USER_ERROR; - key_p->pubSec.modulus_bit_len = 8 * mod_len; - key_p->pubSec.modulus_byte_len = mod_len; - key_p->pubSec.exponent_len = exp_len; - key_p->pubSec.section_length = CALLER_HEADER + mod_len + exp_len; - key_len = key_p->pubSec.section_length + sizeof(struct cca_token_hdr); - key_p->pubHdr.token_length = key_len; - key_len += 4; - keyb_p->ulen = (unsigned short)key_len; - key_len += 2; - keyb_p->blen = (unsigned short)key_len; - cprbx_p->req_parml = parmBlock_l; - *z90cMsg_l_p = tmp_size - CALLER_HEADER; - - return 0; -} - -static int -ICACRT_msg_to_type6CRT_msgX(struct ica_rsa_modexpo_crt *icaMsg_p, int cdx, - int *z90cMsg_l_p, struct type6_msg *z90cMsg_p, - int dev_type) -{ - int mod_len, vud_len, tmp_size, total_CPRB_len, parmBlock_l, short_len; - int long_len, pad_len, keyPartsLen, tmp_l; - unsigned char *tgt_p, *temp; - struct type6_hdr *tp6Hdr_p; - struct CPRBX *cprbx_p; - struct cca_token_hdr *keyHdr_p; - struct cca_pvt_ext_CRT_sec *pvtSec_p; - struct cca_public_sec *pubSec_p; - - mod_len = icaMsg_p->inputdatalength; - short_len = mod_len / 2; - long_len = 8 + short_len; - keyPartsLen = 3 * long_len + 2 * short_len; - pad_len = (8 - (keyPartsLen % 8)) % 8; - keyPartsLen += pad_len + mod_len; - tmp_size = FIXED_TYPE6_CR_LENX + keyPartsLen + mod_len; - total_CPRB_len = tmp_size - sizeof(struct type6_hdr); - parmBlock_l = total_CPRB_len - sizeof(struct CPRBX); - vud_len = 2 + mod_len; - tmp_size = tmp_size + CALLER_HEADER; - memset(z90cMsg_p, 0, tmp_size); - tgt_p = (unsigned char *)z90cMsg_p + CALLER_HEADER; - memcpy(tgt_p, &static_type6_hdrX, sizeof(struct type6_hdr)); - tp6Hdr_p = (struct type6_hdr *)tgt_p; - tp6Hdr_p->ToCardLen1 = total_CPRB_len; - tp6Hdr_p->FromCardLen1 = RESPONSE_CPRBX_SIZE; - tgt_p += sizeof(struct type6_hdr); - cprbx_p = (struct CPRBX *) tgt_p; - memcpy(tgt_p, &static_cprbx, sizeof(struct CPRBX)); - cprbx_p->domain = (unsigned short)cdx; - cprbx_p->req_parml = parmBlock_l; - cprbx_p->rpl_msgbl = parmBlock_l; - tgt_p += sizeof(struct CPRBX); - if (dev_type == PCIXCC_MCL2) - memcpy(tgt_p, &static_pkd_function_and_rulesX_MCL2, - sizeof(struct function_and_rules_block)); - else - memcpy(tgt_p, &static_pkd_function_and_rulesX, - sizeof(struct function_and_rules_block)); - tgt_p += sizeof(struct function_and_rules_block); - *((short *)tgt_p) = (short) vud_len; - tgt_p += 2; - if (copy_from_user(tgt_p, icaMsg_p->inputdata, mod_len)) - return SEN_RELEASED; - if (is_empty(tgt_p, mod_len)) - return SEN_USER_ERROR; - tgt_p += mod_len; - tmp_l = sizeof(struct T6_keyBlock_hdr) + sizeof(struct cca_token_hdr) + - sizeof(struct cca_pvt_ext_CRT_sec) + 0x0F + keyPartsLen; - *((short *)tgt_p) = (short) tmp_l; - temp = tgt_p + 2; - tmp_l -= 2; - *((short *)temp) = (short) tmp_l; - tgt_p += sizeof(struct T6_keyBlock_hdr); - keyHdr_p = (struct cca_token_hdr *)tgt_p; - keyHdr_p->token_identifier = CCA_TKN_HDR_ID_EXT; - tmp_l -= 4; - keyHdr_p->token_length = tmp_l; - tgt_p += sizeof(struct cca_token_hdr); - pvtSec_p = (struct cca_pvt_ext_CRT_sec *)tgt_p; - pvtSec_p->section_identifier = CCA_PVT_EXT_CRT_SEC_ID_PVT; - pvtSec_p->section_length = - sizeof(struct cca_pvt_ext_CRT_sec) + keyPartsLen; - pvtSec_p->key_format = CCA_PVT_EXT_CRT_SEC_FMT_CL; - pvtSec_p->key_use_flags[0] = CCA_PVT_USAGE_ALL; - pvtSec_p->p_len = long_len; - pvtSec_p->q_len = short_len; - pvtSec_p->dp_len = long_len; - pvtSec_p->dq_len = short_len; - pvtSec_p->u_len = long_len; - pvtSec_p->mod_len = mod_len; - pvtSec_p->pad_len = pad_len; - tgt_p += sizeof(struct cca_pvt_ext_CRT_sec); - if (copy_from_user(tgt_p, icaMsg_p->np_prime, long_len)) - return SEN_RELEASED; - if (is_empty(tgt_p, long_len)) - return SEN_USER_ERROR; - tgt_p += long_len; - if (copy_from_user(tgt_p, icaMsg_p->nq_prime, short_len)) - return SEN_RELEASED; - if (is_empty(tgt_p, short_len)) - return SEN_USER_ERROR; - tgt_p += short_len; - if (copy_from_user(tgt_p, icaMsg_p->bp_key, long_len)) - return SEN_RELEASED; - if (is_empty(tgt_p, long_len)) - return SEN_USER_ERROR; - tgt_p += long_len; - if (copy_from_user(tgt_p, icaMsg_p->bq_key, short_len)) - return SEN_RELEASED; - if (is_empty(tgt_p, short_len)) - return SEN_USER_ERROR; - tgt_p += short_len; - if (copy_from_user(tgt_p, icaMsg_p->u_mult_inv, long_len)) - return SEN_RELEASED; - if (is_empty(tgt_p, long_len)) - return SEN_USER_ERROR; - tgt_p += long_len; - tgt_p += pad_len; - memset(tgt_p, 0xFF, mod_len); - tgt_p += mod_len; - memcpy(tgt_p, &static_cca_pub_sec, sizeof(struct cca_public_sec)); - pubSec_p = (struct cca_public_sec *) tgt_p; - pubSec_p->modulus_bit_len = 8 * mod_len; - *z90cMsg_l_p = tmp_size - CALLER_HEADER; - - return 0; -} - -static int -ICAMEX_msg_to_type50MEX_msg(struct ica_rsa_modexpo *icaMex_p, int *z90cMsg_l_p, - union type50_msg *z90cMsg_p) -{ - int mod_len, msg_size, mod_tgt_len, exp_tgt_len, inp_tgt_len; - unsigned char *mod_tgt, *exp_tgt, *inp_tgt; - union type50_msg *tmp_type50_msg; - - mod_len = icaMex_p->inputdatalength; - - msg_size = ((mod_len <= 128) ? TYPE50_MEB1_LEN : TYPE50_MEB2_LEN) + - CALLER_HEADER; - - memset(z90cMsg_p, 0, msg_size); - - tmp_type50_msg = (union type50_msg *) - ((unsigned char *) z90cMsg_p + CALLER_HEADER); - - tmp_type50_msg->meb1.header.msg_type_code = TYPE50_TYPE_CODE; - - if (mod_len <= 128) { - tmp_type50_msg->meb1.header.msg_len = TYPE50_MEB1_LEN; - tmp_type50_msg->meb1.keyblock_type = TYPE50_MEB1_FMT; - mod_tgt = tmp_type50_msg->meb1.modulus; - mod_tgt_len = sizeof(tmp_type50_msg->meb1.modulus); - exp_tgt = tmp_type50_msg->meb1.exponent; - exp_tgt_len = sizeof(tmp_type50_msg->meb1.exponent); - inp_tgt = tmp_type50_msg->meb1.message; - inp_tgt_len = sizeof(tmp_type50_msg->meb1.message); - } else { - tmp_type50_msg->meb2.header.msg_len = TYPE50_MEB2_LEN; - tmp_type50_msg->meb2.keyblock_type = TYPE50_MEB2_FMT; - mod_tgt = tmp_type50_msg->meb2.modulus; - mod_tgt_len = sizeof(tmp_type50_msg->meb2.modulus); - exp_tgt = tmp_type50_msg->meb2.exponent; - exp_tgt_len = sizeof(tmp_type50_msg->meb2.exponent); - inp_tgt = tmp_type50_msg->meb2.message; - inp_tgt_len = sizeof(tmp_type50_msg->meb2.message); - } - - mod_tgt += (mod_tgt_len - mod_len); - if (copy_from_user(mod_tgt, icaMex_p->n_modulus, mod_len)) - return SEN_RELEASED; - if (is_empty(mod_tgt, mod_len)) - return SEN_USER_ERROR; - exp_tgt += (exp_tgt_len - mod_len); - if (copy_from_user(exp_tgt, icaMex_p->b_key, mod_len)) - return SEN_RELEASED; - if (is_empty(exp_tgt, mod_len)) - return SEN_USER_ERROR; - inp_tgt += (inp_tgt_len - mod_len); - if (copy_from_user(inp_tgt, icaMex_p->inputdata, mod_len)) - return SEN_RELEASED; - if (is_empty(inp_tgt, mod_len)) - return SEN_USER_ERROR; - - *z90cMsg_l_p = msg_size - CALLER_HEADER; - - return 0; -} - -static int -ICACRT_msg_to_type50CRT_msg(struct ica_rsa_modexpo_crt *icaMsg_p, - int *z90cMsg_l_p, union type50_msg *z90cMsg_p) -{ - int mod_len, short_len, long_len, tmp_size, p_tgt_len, q_tgt_len, - dp_tgt_len, dq_tgt_len, u_tgt_len, inp_tgt_len, long_offset; - unsigned char *p_tgt, *q_tgt, *dp_tgt, *dq_tgt, *u_tgt, *inp_tgt, - temp[8]; - union type50_msg *tmp_type50_msg; - - mod_len = icaMsg_p->inputdatalength; - short_len = mod_len / 2; - long_len = mod_len / 2 + 8; - long_offset = 0; - - if (long_len > 128) { - memset(temp, 0x00, sizeof(temp)); - if (copy_from_user(temp, icaMsg_p->np_prime, long_len-128)) - return SEN_RELEASED; - if (!is_empty(temp, 8)) - return SEN_NOT_AVAIL; - if (copy_from_user(temp, icaMsg_p->bp_key, long_len-128)) - return SEN_RELEASED; - if (!is_empty(temp, 8)) - return SEN_NOT_AVAIL; - if (copy_from_user(temp, icaMsg_p->u_mult_inv, long_len-128)) - return SEN_RELEASED; - if (!is_empty(temp, 8)) - return SEN_NOT_AVAIL; - long_offset = long_len - 128; - long_len = 128; - } - - tmp_size = ((long_len <= 64) ? TYPE50_CRB1_LEN : TYPE50_CRB2_LEN) + - CALLER_HEADER; - - memset(z90cMsg_p, 0, tmp_size); - - tmp_type50_msg = (union type50_msg *) - ((unsigned char *) z90cMsg_p + CALLER_HEADER); - - tmp_type50_msg->crb1.header.msg_type_code = TYPE50_TYPE_CODE; - if (long_len <= 64) { - tmp_type50_msg->crb1.header.msg_len = TYPE50_CRB1_LEN; - tmp_type50_msg->crb1.keyblock_type = TYPE50_CRB1_FMT; - p_tgt = tmp_type50_msg->crb1.p; - p_tgt_len = sizeof(tmp_type50_msg->crb1.p); - q_tgt = tmp_type50_msg->crb1.q; - q_tgt_len = sizeof(tmp_type50_msg->crb1.q); - dp_tgt = tmp_type50_msg->crb1.dp; - dp_tgt_len = sizeof(tmp_type50_msg->crb1.dp); - dq_tgt = tmp_type50_msg->crb1.dq; - dq_tgt_len = sizeof(tmp_type50_msg->crb1.dq); - u_tgt = tmp_type50_msg->crb1.u; - u_tgt_len = sizeof(tmp_type50_msg->crb1.u); - inp_tgt = tmp_type50_msg->crb1.message; - inp_tgt_len = sizeof(tmp_type50_msg->crb1.message); - } else { - tmp_type50_msg->crb2.header.msg_len = TYPE50_CRB2_LEN; - tmp_type50_msg->crb2.keyblock_type = TYPE50_CRB2_FMT; - p_tgt = tmp_type50_msg->crb2.p; - p_tgt_len = sizeof(tmp_type50_msg->crb2.p); - q_tgt = tmp_type50_msg->crb2.q; - q_tgt_len = sizeof(tmp_type50_msg->crb2.q); - dp_tgt = tmp_type50_msg->crb2.dp; - dp_tgt_len = sizeof(tmp_type50_msg->crb2.dp); - dq_tgt = tmp_type50_msg->crb2.dq; - dq_tgt_len = sizeof(tmp_type50_msg->crb2.dq); - u_tgt = tmp_type50_msg->crb2.u; - u_tgt_len = sizeof(tmp_type50_msg->crb2.u); - inp_tgt = tmp_type50_msg->crb2.message; - inp_tgt_len = sizeof(tmp_type50_msg->crb2.message); - } - - p_tgt += (p_tgt_len - long_len); - if (copy_from_user(p_tgt, icaMsg_p->np_prime + long_offset, long_len)) - return SEN_RELEASED; - if (is_empty(p_tgt, long_len)) - return SEN_USER_ERROR; - q_tgt += (q_tgt_len - short_len); - if (copy_from_user(q_tgt, icaMsg_p->nq_prime, short_len)) - return SEN_RELEASED; - if (is_empty(q_tgt, short_len)) - return SEN_USER_ERROR; - dp_tgt += (dp_tgt_len - long_len); - if (copy_from_user(dp_tgt, icaMsg_p->bp_key + long_offset, long_len)) - return SEN_RELEASED; - if (is_empty(dp_tgt, long_len)) - return SEN_USER_ERROR; - dq_tgt += (dq_tgt_len - short_len); - if (copy_from_user(dq_tgt, icaMsg_p->bq_key, short_len)) - return SEN_RELEASED; - if (is_empty(dq_tgt, short_len)) - return SEN_USER_ERROR; - u_tgt += (u_tgt_len - long_len); - if (copy_from_user(u_tgt, icaMsg_p->u_mult_inv + long_offset, long_len)) - return SEN_RELEASED; - if (is_empty(u_tgt, long_len)) - return SEN_USER_ERROR; - inp_tgt += (inp_tgt_len - mod_len); - if (copy_from_user(inp_tgt, icaMsg_p->inputdata, mod_len)) - return SEN_RELEASED; - if (is_empty(inp_tgt, mod_len)) - return SEN_USER_ERROR; - - *z90cMsg_l_p = tmp_size - CALLER_HEADER; - - return 0; -} - -int -convert_request(unsigned char *buffer, int func, unsigned short function, - int cdx, int dev_type, int *msg_l_p, unsigned char *msg_p) -{ - if (dev_type == PCICA) { - if (func == ICARSACRT) - return ICACRT_msg_to_type4CRT_msg( - (struct ica_rsa_modexpo_crt *) buffer, - msg_l_p, (union type4_msg *) msg_p); - else - return ICAMEX_msg_to_type4MEX_msg( - (struct ica_rsa_modexpo *) buffer, - msg_l_p, (union type4_msg *) msg_p); - } - if (dev_type == PCICC) { - if (func == ICARSACRT) - return ICACRT_msg_to_type6CRT_msg( - (struct ica_rsa_modexpo_crt *) buffer, - cdx, msg_l_p, (struct type6_msg *)msg_p); - if (function == PCI_FUNC_KEY_ENCRYPT) - return ICAMEX_msg_to_type6MEX_en_msg( - (struct ica_rsa_modexpo *) buffer, - cdx, msg_l_p, (struct type6_msg *) msg_p); - else - return ICAMEX_msg_to_type6MEX_de_msg( - (struct ica_rsa_modexpo *) buffer, - cdx, msg_l_p, (struct type6_msg *) msg_p); - } - if ((dev_type == PCIXCC_MCL2) || - (dev_type == PCIXCC_MCL3) || - (dev_type == CEX2C)) { - if (func == ICARSACRT) - return ICACRT_msg_to_type6CRT_msgX( - (struct ica_rsa_modexpo_crt *) buffer, - cdx, msg_l_p, (struct type6_msg *) msg_p, - dev_type); - else - return ICAMEX_msg_to_type6MEX_msgX( - (struct ica_rsa_modexpo *) buffer, - cdx, msg_l_p, (struct type6_msg *) msg_p, - dev_type); - } - if (dev_type == CEX2A) { - if (func == ICARSACRT) - return ICACRT_msg_to_type50CRT_msg( - (struct ica_rsa_modexpo_crt *) buffer, - msg_l_p, (union type50_msg *) msg_p); - else - return ICAMEX_msg_to_type50MEX_msg( - (struct ica_rsa_modexpo *) buffer, - msg_l_p, (union type50_msg *) msg_p); - } - - return 0; -} - -int ext_bitlens_msg_count = 0; -static inline void -unset_ext_bitlens(void) -{ - if (!ext_bitlens_msg_count) { - PRINTK("Unable to use coprocessors for extended bitlengths. " - "Using PCICAs/CEX2As (if present) for extended " - "bitlengths. This is not an error.\n"); - ext_bitlens_msg_count++; - } - ext_bitlens = 0; -} - -int -convert_response(unsigned char *response, unsigned char *buffer, - int *respbufflen_p, unsigned char *resp_buff) -{ - struct ica_rsa_modexpo *icaMsg_p = (struct ica_rsa_modexpo *) buffer; - struct error_hdr *errh_p = (struct error_hdr *) response; - struct type80_hdr *t80h_p = (struct type80_hdr *) response; - struct type84_hdr *t84h_p = (struct type84_hdr *) response; - struct type86_fmt2_msg *t86m_p = (struct type86_fmt2_msg *) response; - int reply_code, service_rc, service_rs, src_l; - unsigned char *src_p, *tgt_p; - struct CPRB *cprb_p; - struct CPRBX *cprbx_p; - - src_p = 0; - reply_code = 0; - service_rc = 0; - service_rs = 0; - src_l = 0; - switch (errh_p->type) { - case TYPE82_RSP_CODE: - case TYPE88_RSP_CODE: - reply_code = errh_p->reply_code; - src_p = (unsigned char *)errh_p; - PRINTK("Hardware error: Type %02X Message Header: " - "%02x%02x%02x%02x%02x%02x%02x%02x\n", - errh_p->type, - src_p[0], src_p[1], src_p[2], src_p[3], - src_p[4], src_p[5], src_p[6], src_p[7]); - break; - case TYPE80_RSP_CODE: - src_l = icaMsg_p->outputdatalength; - src_p = response + (int)t80h_p->len - src_l; - break; - case TYPE84_RSP_CODE: - src_l = icaMsg_p->outputdatalength; - src_p = response + (int)t84h_p->len - src_l; - break; - case TYPE86_RSP_CODE: - reply_code = t86m_p->header.reply_code; - if (reply_code != 0) - break; - cprb_p = (struct CPRB *) - (response + sizeof(struct type86_fmt2_msg)); - cprbx_p = (struct CPRBX *) cprb_p; - if (cprb_p->cprb_ver_id != 0x02) { - le2toI(cprb_p->ccp_rtcode, &service_rc); - if (service_rc != 0) { - le2toI(cprb_p->ccp_rscode, &service_rs); - if ((service_rc == 8) && (service_rs == 66)) - PDEBUG("Bad block format on PCICC\n"); - else if ((service_rc == 8) && (service_rs == 65)) - PDEBUG("Probably an even modulus on " - "PCICC\n"); - else if ((service_rc == 8) && (service_rs == 770)) { - PDEBUG("Invalid key length on PCICC\n"); - unset_ext_bitlens(); - return REC_USE_PCICA; - } - else if ((service_rc == 8) && (service_rs == 783)) { - PDEBUG("Extended bitlengths not enabled" - "on PCICC\n"); - unset_ext_bitlens(); - return REC_USE_PCICA; - } - else - PRINTK("service rc/rs (PCICC): %d/%d\n", - service_rc, service_rs); - return REC_OPERAND_INV; - } - src_p = (unsigned char *)cprb_p + sizeof(struct CPRB); - src_p += 4; - le2toI(src_p, &src_l); - src_l -= 2; - src_p += 2; - } else { - service_rc = (int)cprbx_p->ccp_rtcode; - if (service_rc != 0) { - service_rs = (int) cprbx_p->ccp_rscode; - if ((service_rc == 8) && (service_rs == 66)) - PDEBUG("Bad block format on PCIXCC\n"); - else if ((service_rc == 8) && (service_rs == 65)) - PDEBUG("Probably an even modulus on " - "PCIXCC\n"); - else if ((service_rc == 8) && (service_rs == 770)) { - PDEBUG("Invalid key length on PCIXCC\n"); - unset_ext_bitlens(); - return REC_USE_PCICA; - } - else if ((service_rc == 8) && (service_rs == 783)) { - PDEBUG("Extended bitlengths not enabled" - "on PCIXCC\n"); - unset_ext_bitlens(); - return REC_USE_PCICA; - } - else - PRINTK("service rc/rs (PCIXCC): %d/%d\n", - service_rc, service_rs); - return REC_OPERAND_INV; - } - src_p = (unsigned char *) - cprbx_p + sizeof(struct CPRBX); - src_p += 4; - src_l = (int)(*((short *) src_p)); - src_l -= 2; - src_p += 2; - } - break; - default: - src_p = (unsigned char *)errh_p; - PRINTK("Unrecognized Message Header: " - "%02x%02x%02x%02x%02x%02x%02x%02x\n", - src_p[0], src_p[1], src_p[2], src_p[3], - src_p[4], src_p[5], src_p[6], src_p[7]); - return REC_BAD_MESSAGE; - } - - if (reply_code) - switch (reply_code) { - case REP82_ERROR_MACHINE_FAILURE: - if (errh_p->type == TYPE82_RSP_CODE) - PRINTKW("Machine check failure\n"); - else - PRINTKW("Module failure\n"); - return REC_HARDWAR_ERR; - case REP82_ERROR_OPERAND_INVALID: - return REC_OPERAND_INV; - case REP88_ERROR_MESSAGE_MALFORMD: - PRINTKW("Message malformed\n"); - return REC_OPERAND_INV; - case REP82_ERROR_OPERAND_SIZE: - return REC_OPERAND_SIZE; - case REP82_ERROR_EVEN_MOD_IN_OPND: - return REC_EVEN_MOD; - case REP82_ERROR_MESSAGE_TYPE: - return WRONG_DEVICE_TYPE; - case REP82_ERROR_TRANSPORT_FAIL: - PRINTKW("Transport failed (APFS = %02X%02X%02X%02X)\n", - t86m_p->apfs[0], t86m_p->apfs[1], - t86m_p->apfs[2], t86m_p->apfs[3]); - return REC_HARDWAR_ERR; - default: - PRINTKW("reply code = %d\n", reply_code); - return REC_HARDWAR_ERR; - } - - if (service_rc != 0) - return REC_OPERAND_INV; - - if ((src_l > icaMsg_p->outputdatalength) || - (src_l > RESPBUFFSIZE) || - (src_l <= 0)) - return REC_OPERAND_SIZE; - - PDEBUG("Length returned = %d\n", src_l); - tgt_p = resp_buff + icaMsg_p->outputdatalength - src_l; - memcpy(tgt_p, src_p, src_l); - if ((errh_p->type == TYPE86_RSP_CODE) && (resp_buff < tgt_p)) { - memset(resp_buff, 0, icaMsg_p->outputdatalength - src_l); - if (pad_msg(resp_buff, icaMsg_p->outputdatalength, src_l)) - return REC_INVALID_PAD; - } - *respbufflen_p = icaMsg_p->outputdatalength; - if (*respbufflen_p == 0) - PRINTK("Zero *respbufflen_p\n"); - - return 0; -} - diff --git a/drivers/s390/crypto/z90main.c b/drivers/s390/crypto/z90main.c deleted file mode 100644 index b2f20ab8431..00000000000 --- a/drivers/s390/crypto/z90main.c +++ /dev/null @@ -1,3379 +0,0 @@ -/* - * linux/drivers/s390/crypto/z90main.c - * - * z90crypt 1.3.3 - * - * Copyright (C) 2001, 2005 IBM Corporation - * Author(s): Robert Burroughs (burrough@us.ibm.com) - * Eric Rossman (edrossma@us.ibm.com) - * - * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include // copy_(from|to)_user -#include -#include -#include // mdelay -#include -#include // for tasklets -#include -#include -#include -#include -#include -#include "z90crypt.h" -#include "z90common.h" - -/** - * Defaults that may be modified. - */ - -/** - * You can specify a different minor at compile time. - */ -#ifndef Z90CRYPT_MINOR -#define Z90CRYPT_MINOR MISC_DYNAMIC_MINOR -#endif - -/** - * You can specify a different domain at compile time or on the insmod - * command line. - */ -#ifndef DOMAIN_INDEX -#define DOMAIN_INDEX -1 -#endif - -/** - * This is the name under which the device is registered in /proc/modules. - */ -#define REG_NAME "z90crypt" - -/** - * Cleanup should run every CLEANUPTIME seconds and should clean up requests - * older than CLEANUPTIME seconds in the past. - */ -#ifndef CLEANUPTIME -#define CLEANUPTIME 15 -#endif - -/** - * Config should run every CONFIGTIME seconds - */ -#ifndef CONFIGTIME -#define CONFIGTIME 30 -#endif - -/** - * The first execution of the config task should take place - * immediately after initialization - */ -#ifndef INITIAL_CONFIGTIME -#define INITIAL_CONFIGTIME 1 -#endif - -/** - * Reader should run every READERTIME milliseconds - * With the 100Hz patch for s390, z90crypt can lock the system solid while - * under heavy load. We'll try to avoid that. - */ -#ifndef READERTIME -#if HZ > 1000 -#define READERTIME 2 -#else -#define READERTIME 10 -#endif -#endif - -/** - * turn long device array index into device pointer - */ -#define LONG2DEVPTR(ndx) (z90crypt.device_p[(ndx)]) - -/** - * turn short device array index into long device array index - */ -#define SHRT2LONG(ndx) (z90crypt.overall_device_x.device_index[(ndx)]) - -/** - * turn short device array index into device pointer - */ -#define SHRT2DEVPTR(ndx) LONG2DEVPTR(SHRT2LONG(ndx)) - -/** - * Status for a work-element - */ -#define STAT_DEFAULT 0x00 // request has not been processed - -#define STAT_ROUTED 0x80 // bit 7: requests get routed to specific device - // else, device is determined each write -#define STAT_FAILED 0x40 // bit 6: this bit is set if the request failed - // before being sent to the hardware. -#define STAT_WRITTEN 0x30 // bits 5-4: work to be done, not sent to device -// 0x20 // UNUSED state -#define STAT_READPEND 0x10 // bits 5-4: work done, we're returning data now -#define STAT_NOWORK 0x00 // bits off: no work on any queue -#define STAT_RDWRMASK 0x30 // mask for bits 5-4 - -/** - * Macros to check the status RDWRMASK - */ -#define CHK_RDWRMASK(statbyte) ((statbyte) & STAT_RDWRMASK) -#define SET_RDWRMASK(statbyte, newval) \ - {(statbyte) &= ~STAT_RDWRMASK; (statbyte) |= newval;} - -/** - * Audit Trail. Progress of a Work element - * audit[0]: Unless noted otherwise, these bits are all set by the process - */ -#define FP_COPYFROM 0x80 // Caller's buffer has been copied to work element -#define FP_BUFFREQ 0x40 // Low Level buffer requested -#define FP_BUFFGOT 0x20 // Low Level buffer obtained -#define FP_SENT 0x10 // Work element sent to a crypto device - // (may be set by process or by reader task) -#define FP_PENDING 0x08 // Work element placed on pending queue - // (may be set by process or by reader task) -#define FP_REQUEST 0x04 // Work element placed on request queue -#define FP_ASLEEP 0x02 // Work element about to sleep -#define FP_AWAKE 0x01 // Work element has been awakened - -/** - * audit[1]: These bits are set by the reader task and/or the cleanup task - */ -#define FP_NOTPENDING 0x80 // Work element removed from pending queue -#define FP_AWAKENING 0x40 // Caller about to be awakened -#define FP_TIMEDOUT 0x20 // Caller timed out -#define FP_RESPSIZESET 0x10 // Response size copied to work element -#define FP_RESPADDRCOPIED 0x08 // Response address copied to work element -#define FP_RESPBUFFCOPIED 0x04 // Response buffer copied to work element -#define FP_REMREQUEST 0x02 // Work element removed from request queue -#define FP_SIGNALED 0x01 // Work element was awakened by a signal - -/** - * audit[2]: unused - */ - -/** - * state of the file handle in private_data.status - */ -#define STAT_OPEN 0 -#define STAT_CLOSED 1 - -/** - * PID() expands to the process ID of the current process - */ -#define PID() (current->pid) - -/** - * Selected Constants. The number of APs and the number of devices - */ -#ifndef Z90CRYPT_NUM_APS -#define Z90CRYPT_NUM_APS 64 -#endif -#ifndef Z90CRYPT_NUM_DEVS -#define Z90CRYPT_NUM_DEVS Z90CRYPT_NUM_APS -#endif - -/** - * Buffer size for receiving responses. The maximum Response Size - * is actually the maximum request size, since in an error condition - * the request itself may be returned unchanged. - */ -#define MAX_RESPONSE_SIZE 0x0000077C - -/** - * A count and status-byte mask - */ -struct status { - int st_count; // # of enabled devices - int disabled_count; // # of disabled devices - int user_disabled_count; // # of devices disabled via proc fs - unsigned char st_mask[Z90CRYPT_NUM_APS]; // current status mask -}; - -/** - * The array of device indexes is a mechanism for fast indexing into - * a long (and sparse) array. For instance, if APs 3, 9 and 47 are - * installed, z90CDeviceIndex[0] is 3, z90CDeviceIndex[1] is 9, and - * z90CDeviceIndex[2] is 47. - */ -struct device_x { - int device_index[Z90CRYPT_NUM_DEVS]; -}; - -/** - * All devices are arranged in a single array: 64 APs - */ -struct device { - int dev_type; // PCICA, PCICC, PCIXCC_MCL2, - // PCIXCC_MCL3, CEX2C, CEX2A - enum devstat dev_stat; // current device status - int dev_self_x; // Index in array - int disabled; // Set when device is in error - int user_disabled; // Set when device is disabled by user - int dev_q_depth; // q depth - unsigned char * dev_resp_p; // Response buffer address - int dev_resp_l; // Response Buffer length - int dev_caller_count; // Number of callers - int dev_total_req_cnt; // # requests for device since load - struct list_head dev_caller_list; // List of callers -}; - -/** - * There's a struct status and a struct device_x for each device type. - */ -struct hdware_block { - struct status hdware_mask; - struct status type_mask[Z90CRYPT_NUM_TYPES]; - struct device_x type_x_addr[Z90CRYPT_NUM_TYPES]; - unsigned char device_type_array[Z90CRYPT_NUM_APS]; -}; - -/** - * z90crypt is the topmost data structure in the hierarchy. - */ -struct z90crypt { - int max_count; // Nr of possible crypto devices - struct status mask; - int q_depth_array[Z90CRYPT_NUM_DEVS]; - int dev_type_array[Z90CRYPT_NUM_DEVS]; - struct device_x overall_device_x; // array device indexes - struct device * device_p[Z90CRYPT_NUM_DEVS]; - int terminating; - int domain_established;// TRUE: domain has been found - int cdx; // Crypto Domain Index - int len; // Length of this data structure - struct hdware_block *hdware_info; -}; - -/** - * An array of these structures is pointed to from dev_caller - * The length of the array depends on the device type. For APs, - * there are 8. - * - * The caller buffer is allocated to the user at OPEN. At WRITE, - * it contains the request; at READ, the response. The function - * send_to_crypto_device converts the request to device-dependent - * form and use the caller's OPEN-allocated buffer for the response. - * - * For the contents of caller_dev_dep_req and caller_dev_dep_req_p - * because that points to it, see the discussion in z90hardware.c. - * Search for "extended request message block". - */ -struct caller { - int caller_buf_l; // length of original request - unsigned char * caller_buf_p; // Original request on WRITE - int caller_dev_dep_req_l; // len device dependent request - unsigned char * caller_dev_dep_req_p; // Device dependent form - unsigned char caller_id[8]; // caller-supplied message id - struct list_head caller_liste; - unsigned char caller_dev_dep_req[MAX_RESPONSE_SIZE]; -}; - -/** - * Function prototypes from z90hardware.c - */ -enum hdstat query_online(int deviceNr, int cdx, int resetNr, int *q_depth, - int *dev_type); -enum devstat reset_device(int deviceNr, int cdx, int resetNr); -enum devstat send_to_AP(int dev_nr, int cdx, int msg_len, unsigned char *msg_ext); -enum devstat receive_from_AP(int dev_nr, int cdx, int resplen, - unsigned char *resp, unsigned char *psmid); -int convert_request(unsigned char *buffer, int func, unsigned short function, - int cdx, int dev_type, int *msg_l_p, unsigned char *msg_p); -int convert_response(unsigned char *response, unsigned char *buffer, - int *respbufflen_p, unsigned char *resp_buff); - -/** - * Low level function prototypes - */ -static int create_z90crypt(int *cdx_p); -static int refresh_z90crypt(int *cdx_p); -static int find_crypto_devices(struct status *deviceMask); -static int create_crypto_device(int index); -static int destroy_crypto_device(int index); -static void destroy_z90crypt(void); -static int refresh_index_array(struct status *status_str, - struct device_x *index_array); -static int probe_device_type(struct device *devPtr); -static int probe_PCIXCC_type(struct device *devPtr); - -/** - * proc fs definitions - */ -static struct proc_dir_entry *z90crypt_entry; - -/** - * data structures - */ - -/** - * work_element.opener points back to this structure - */ -struct priv_data { - pid_t opener_pid; - unsigned char status; // 0: open 1: closed -}; - -/** - * A work element is allocated for each request - */ -struct work_element { - struct priv_data *priv_data; - pid_t pid; - int devindex; // index of device processing this w_e - // (If request did not specify device, - // -1 until placed onto a queue) - int devtype; - struct list_head liste; // used for requestq and pendingq - char buffer[128]; // local copy of user request - int buff_size; // size of the buffer for the request - char resp_buff[RESPBUFFSIZE]; - int resp_buff_size; - char __user * resp_addr; // address of response in user space - unsigned int funccode; // function code of request - wait_queue_head_t waitq; - unsigned long requestsent; // time at which the request was sent - atomic_t alarmrung; // wake-up signal - unsigned char caller_id[8]; // pid + counter, for this w_e - unsigned char status[1]; // bits to mark status of the request - unsigned char audit[3]; // record of work element's progress - unsigned char * requestptr; // address of request buffer - int retcode; // return code of request -}; - -/** - * High level function prototypes - */ -static int z90crypt_open(struct inode *, struct file *); -static int z90crypt_release(struct inode *, struct file *); -static ssize_t z90crypt_read(struct file *, char __user *, size_t, loff_t *); -static ssize_t z90crypt_write(struct file *, const char __user *, - size_t, loff_t *); -static long z90crypt_unlocked_ioctl(struct file *, unsigned int, unsigned long); -static long z90crypt_compat_ioctl(struct file *, unsigned int, unsigned long); - -static void z90crypt_reader_task(unsigned long); -static void z90crypt_schedule_reader_task(unsigned long); -static void z90crypt_config_task(unsigned long); -static void z90crypt_cleanup_task(unsigned long); - -static int z90crypt_status(char *, char **, off_t, int, int *, void *); -static int z90crypt_status_write(struct file *, const char __user *, - unsigned long, void *); - -/** - * Storage allocated at initialization and used throughout the life of - * this insmod - */ -static int domain = DOMAIN_INDEX; -static struct z90crypt z90crypt; -static int quiesce_z90crypt; -static spinlock_t queuespinlock; -static struct list_head request_list; -static int requestq_count; -static struct list_head pending_list; -static int pendingq_count; - -static struct tasklet_struct reader_tasklet; -static struct timer_list reader_timer; -static struct timer_list config_timer; -static struct timer_list cleanup_timer; -static atomic_t total_open; -static atomic_t z90crypt_step; - -static struct file_operations z90crypt_fops = { - .owner = THIS_MODULE, - .read = z90crypt_read, - .write = z90crypt_write, - .unlocked_ioctl = z90crypt_unlocked_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = z90crypt_compat_ioctl, -#endif - .open = z90crypt_open, - .release = z90crypt_release -}; - -static struct miscdevice z90crypt_misc_device = { - .minor = Z90CRYPT_MINOR, - .name = DEV_NAME, - .fops = &z90crypt_fops, -}; - -/** - * Documentation values. - */ -MODULE_AUTHOR("zSeries Linux Crypto Team: Robert H. Burroughs, Eric D. Rossman" - "and Jochen Roehrig"); -MODULE_DESCRIPTION("zSeries Linux Cryptographic Coprocessor device driver, " - "Copyright 2001, 2005 IBM Corporation"); -MODULE_LICENSE("GPL"); -module_param(domain, int, 0); -MODULE_PARM_DESC(domain, "domain index for device"); - -#ifdef CONFIG_COMPAT -/** - * ioctl32 conversion routines - */ -struct ica_rsa_modexpo_32 { // For 32-bit callers - compat_uptr_t inputdata; - unsigned int inputdatalength; - compat_uptr_t outputdata; - unsigned int outputdatalength; - compat_uptr_t b_key; - compat_uptr_t n_modulus; -}; - -static long -trans_modexpo32(struct file *filp, unsigned int cmd, unsigned long arg) -{ - struct ica_rsa_modexpo_32 __user *mex32u = compat_ptr(arg); - struct ica_rsa_modexpo_32 mex32k; - struct ica_rsa_modexpo __user *mex64; - long ret = 0; - unsigned int i; - - if (!access_ok(VERIFY_WRITE, mex32u, sizeof(struct ica_rsa_modexpo_32))) - return -EFAULT; - mex64 = compat_alloc_user_space(sizeof(struct ica_rsa_modexpo)); - if (!access_ok(VERIFY_WRITE, mex64, sizeof(struct ica_rsa_modexpo))) - return -EFAULT; - if (copy_from_user(&mex32k, mex32u, sizeof(struct ica_rsa_modexpo_32))) - return -EFAULT; - if (__put_user(compat_ptr(mex32k.inputdata), &mex64->inputdata) || - __put_user(mex32k.inputdatalength, &mex64->inputdatalength) || - __put_user(compat_ptr(mex32k.outputdata), &mex64->outputdata) || - __put_user(mex32k.outputdatalength, &mex64->outputdatalength) || - __put_user(compat_ptr(mex32k.b_key), &mex64->b_key) || - __put_user(compat_ptr(mex32k.n_modulus), &mex64->n_modulus)) - return -EFAULT; - ret = z90crypt_unlocked_ioctl(filp, cmd, (unsigned long)mex64); - if (!ret) - if (__get_user(i, &mex64->outputdatalength) || - __put_user(i, &mex32u->outputdatalength)) - ret = -EFAULT; - return ret; -} - -struct ica_rsa_modexpo_crt_32 { // For 32-bit callers - compat_uptr_t inputdata; - unsigned int inputdatalength; - compat_uptr_t outputdata; - unsigned int outputdatalength; - compat_uptr_t bp_key; - compat_uptr_t bq_key; - compat_uptr_t np_prime; - compat_uptr_t nq_prime; - compat_uptr_t u_mult_inv; -}; - -static long -trans_modexpo_crt32(struct file *filp, unsigned int cmd, unsigned long arg) -{ - struct ica_rsa_modexpo_crt_32 __user *crt32u = compat_ptr(arg); - struct ica_rsa_modexpo_crt_32 crt32k; - struct ica_rsa_modexpo_crt __user *crt64; - long ret = 0; - unsigned int i; - - if (!access_ok(VERIFY_WRITE, crt32u, - sizeof(struct ica_rsa_modexpo_crt_32))) - return -EFAULT; - crt64 = compat_alloc_user_space(sizeof(struct ica_rsa_modexpo_crt)); - if (!access_ok(VERIFY_WRITE, crt64, sizeof(struct ica_rsa_modexpo_crt))) - return -EFAULT; - if (copy_from_user(&crt32k, crt32u, - sizeof(struct ica_rsa_modexpo_crt_32))) - return -EFAULT; - if (__put_user(compat_ptr(crt32k.inputdata), &crt64->inputdata) || - __put_user(crt32k.inputdatalength, &crt64->inputdatalength) || - __put_user(compat_ptr(crt32k.outputdata), &crt64->outputdata) || - __put_user(crt32k.outputdatalength, &crt64->outputdatalength) || - __put_user(compat_ptr(crt32k.bp_key), &crt64->bp_key) || - __put_user(compat_ptr(crt32k.bq_key), &crt64->bq_key) || - __put_user(compat_ptr(crt32k.np_prime), &crt64->np_prime) || - __put_user(compat_ptr(crt32k.nq_prime), &crt64->nq_prime) || - __put_user(compat_ptr(crt32k.u_mult_inv), &crt64->u_mult_inv)) - return -EFAULT; - ret = z90crypt_unlocked_ioctl(filp, cmd, (unsigned long)crt64); - if (!ret) - if (__get_user(i, &crt64->outputdatalength) || - __put_user(i, &crt32u->outputdatalength)) - ret = -EFAULT; - return ret; -} - -static long -z90crypt_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) -{ - switch (cmd) { - case ICAZ90STATUS: - case Z90QUIESCE: - case Z90STAT_TOTALCOUNT: - case Z90STAT_PCICACOUNT: - case Z90STAT_PCICCCOUNT: - case Z90STAT_PCIXCCCOUNT: - case Z90STAT_PCIXCCMCL2COUNT: - case Z90STAT_PCIXCCMCL3COUNT: - case Z90STAT_CEX2CCOUNT: - case Z90STAT_REQUESTQ_COUNT: - case Z90STAT_PENDINGQ_COUNT: - case Z90STAT_TOTALOPEN_COUNT: - case Z90STAT_DOMAIN_INDEX: - case Z90STAT_STATUS_MASK: - case Z90STAT_QDEPTH_MASK: - case Z90STAT_PERDEV_REQCNT: - return z90crypt_unlocked_ioctl(filp, cmd, arg); - case ICARSAMODEXPO: - return trans_modexpo32(filp, cmd, arg); - case ICARSACRT: - return trans_modexpo_crt32(filp, cmd, arg); - default: - return -ENOIOCTLCMD; - } -} -#endif - -/** - * The module initialization code. - */ -static int __init -z90crypt_init_module(void) -{ - int result, nresult; - struct proc_dir_entry *entry; - - PDEBUG("PID %d\n", PID()); - - if ((domain < -1) || (domain > 15)) { - PRINTKW("Invalid param: domain = %d. Not loading.\n", domain); - return -EINVAL; - } - - /* Register as misc device with given minor (or get a dynamic one). */ - result = misc_register(&z90crypt_misc_device); - if (result < 0) { - PRINTKW(KERN_ERR "misc_register (minor %d) failed with %d\n", - z90crypt_misc_device.minor, result); - return result; - } - - PDEBUG("Registered " DEV_NAME " with result %d\n", result); - - result = create_z90crypt(&domain); - if (result != 0) { - PRINTKW("create_z90crypt (domain index %d) failed with %d.\n", - domain, result); - result = -ENOMEM; - goto init_module_cleanup; - } - - if (result == 0) { - PRINTKN("Version %d.%d.%d loaded, built on %s %s\n", - z90crypt_VERSION, z90crypt_RELEASE, z90crypt_VARIANT, - __DATE__, __TIME__); - PDEBUG("create_z90crypt (domain index %d) successful.\n", - domain); - } else - PRINTK("No devices at startup\n"); - - /* Initialize globals. */ - spin_lock_init(&queuespinlock); - - INIT_LIST_HEAD(&pending_list); - pendingq_count = 0; - - INIT_LIST_HEAD(&request_list); - requestq_count = 0; - - quiesce_z90crypt = 0; - - atomic_set(&total_open, 0); - atomic_set(&z90crypt_step, 0); - - /* Set up the cleanup task. */ - init_timer(&cleanup_timer); - cleanup_timer.function = z90crypt_cleanup_task; - cleanup_timer.data = 0; - cleanup_timer.expires = jiffies + (CLEANUPTIME * HZ); - add_timer(&cleanup_timer); - - /* Set up the proc file system */ - entry = create_proc_entry("driver/z90crypt", 0644, 0); - if (entry) { - entry->nlink = 1; - entry->data = 0; - entry->read_proc = z90crypt_status; - entry->write_proc = z90crypt_status_write; - } - else - PRINTK("Couldn't create z90crypt proc entry\n"); - z90crypt_entry = entry; - - /* Set up the configuration task. */ - init_timer(&config_timer); - config_timer.function = z90crypt_config_task; - config_timer.data = 0; - config_timer.expires = jiffies + (INITIAL_CONFIGTIME * HZ); - add_timer(&config_timer); - - /* Set up the reader task */ - tasklet_init(&reader_tasklet, z90crypt_reader_task, 0); - init_timer(&reader_timer); - reader_timer.function = z90crypt_schedule_reader_task; - reader_timer.data = 0; - reader_timer.expires = jiffies + (READERTIME * HZ / 1000); - add_timer(&reader_timer); - - return 0; // success - -init_module_cleanup: - if ((nresult = misc_deregister(&z90crypt_misc_device))) - PRINTK("misc_deregister failed with %d.\n", nresult); - else - PDEBUG("misc_deregister successful.\n"); - - return result; // failure -} - -/** - * The module termination code - */ -static void __exit -z90crypt_cleanup_module(void) -{ - int nresult; - - PDEBUG("PID %d\n", PID()); - - remove_proc_entry("driver/z90crypt", 0); - - if ((nresult = misc_deregister(&z90crypt_misc_device))) - PRINTK("misc_deregister failed with %d.\n", nresult); - else - PDEBUG("misc_deregister successful.\n"); - - /* Remove the tasks */ - tasklet_kill(&reader_tasklet); - del_timer(&reader_timer); - del_timer(&config_timer); - del_timer(&cleanup_timer); - - destroy_z90crypt(); - - PRINTKN("Unloaded.\n"); -} - -/** - * Functions running under a process id - * - * The I/O functions: - * z90crypt_open - * z90crypt_release - * z90crypt_read - * z90crypt_write - * z90crypt_unlocked_ioctl - * z90crypt_status - * z90crypt_status_write - * disable_card - * enable_card - * - * Helper functions: - * z90crypt_rsa - * z90crypt_prepare - * z90crypt_send - * z90crypt_process_results - * - */ -static int -z90crypt_open(struct inode *inode, struct file *filp) -{ - struct priv_data *private_data_p; - - if (quiesce_z90crypt) - return -EQUIESCE; - - private_data_p = kzalloc(sizeof(struct priv_data), GFP_KERNEL); - if (!private_data_p) { - PRINTK("Memory allocate failed\n"); - return -ENOMEM; - } - - private_data_p->status = STAT_OPEN; - private_data_p->opener_pid = PID(); - filp->private_data = private_data_p; - atomic_inc(&total_open); - - return 0; -} - -static int -z90crypt_release(struct inode *inode, struct file *filp) -{ - struct priv_data *private_data_p = filp->private_data; - - PDEBUG("PID %d (filp %p)\n", PID(), filp); - - private_data_p->status = STAT_CLOSED; - memset(private_data_p, 0, sizeof(struct priv_data)); - kfree(private_data_p); - atomic_dec(&total_open); - - return 0; -} - -/* - * there are two read functions, of which compile options will choose one - * without USE_GET_RANDOM_BYTES - * => read() always returns -EPERM; - * otherwise - * => read() uses get_random_bytes() kernel function - */ -#ifndef USE_GET_RANDOM_BYTES -/** - * z90crypt_read will not be supported beyond z90crypt 1.3.1 - */ -static ssize_t -z90crypt_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos) -{ - PDEBUG("filp %p (PID %d)\n", filp, PID()); - return -EPERM; -} -#else // we want to use get_random_bytes -/** - * read() just returns a string of random bytes. Since we have no way - * to generate these cryptographically, we just execute get_random_bytes - * for the length specified. - */ -#include -static ssize_t -z90crypt_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos) -{ - unsigned char *temp_buff; - - PDEBUG("filp %p (PID %d)\n", filp, PID()); - - if (quiesce_z90crypt) - return -EQUIESCE; - if (count < 0) { - PRINTK("Requested random byte count negative: %ld\n", count); - return -EINVAL; - } - if (count > RESPBUFFSIZE) { - PDEBUG("count[%d] > RESPBUFFSIZE", count); - return -EINVAL; - } - if (count == 0) - return 0; - temp_buff = kmalloc(RESPBUFFSIZE, GFP_KERNEL); - if (!temp_buff) { - PRINTK("Memory allocate failed\n"); - return -ENOMEM; - } - get_random_bytes(temp_buff, count); - - if (copy_to_user(buf, temp_buff, count) != 0) { - kfree(temp_buff); - return -EFAULT; - } - kfree(temp_buff); - return count; -} -#endif - -/** - * Write is is not allowed - */ -static ssize_t -z90crypt_write(struct file *filp, const char __user *buf, size_t count, loff_t *f_pos) -{ - PDEBUG("filp %p (PID %d)\n", filp, PID()); - return -EPERM; -} - -/** - * New status functions - */ -static inline int -get_status_totalcount(void) -{ - return z90crypt.hdware_info->hdware_mask.st_count; -} - -static inline int -get_status_PCICAcount(void) -{ - return z90crypt.hdware_info->type_mask[PCICA].st_count; -} - -static inline int -get_status_PCICCcount(void) -{ - return z90crypt.hdware_info->type_mask[PCICC].st_count; -} - -static inline int -get_status_PCIXCCcount(void) -{ - return z90crypt.hdware_info->type_mask[PCIXCC_MCL2].st_count + - z90crypt.hdware_info->type_mask[PCIXCC_MCL3].st_count; -} - -static inline int -get_status_PCIXCCMCL2count(void) -{ - return z90crypt.hdware_info->type_mask[PCIXCC_MCL2].st_count; -} - -static inline int -get_status_PCIXCCMCL3count(void) -{ - return z90crypt.hdware_info->type_mask[PCIXCC_MCL3].st_count; -} - -static inline int -get_status_CEX2Ccount(void) -{ - return z90crypt.hdware_info->type_mask[CEX2C].st_count; -} - -static inline int -get_status_CEX2Acount(void) -{ - return z90crypt.hdware_info->type_mask[CEX2A].st_count; -} - -static inline int -get_status_requestq_count(void) -{ - return requestq_count; -} - -static inline int -get_status_pendingq_count(void) -{ - return pendingq_count; -} - -static inline int -get_status_totalopen_count(void) -{ - return atomic_read(&total_open); -} - -static inline int -get_status_domain_index(void) -{ - return z90crypt.cdx; -} - -static inline unsigned char * -get_status_status_mask(unsigned char status[Z90CRYPT_NUM_APS]) -{ - int i, ix; - - memcpy(status, z90crypt.hdware_info->device_type_array, - Z90CRYPT_NUM_APS); - - for (i = 0; i < get_status_totalcount(); i++) { - ix = SHRT2LONG(i); - if (LONG2DEVPTR(ix)->user_disabled) - status[ix] = 0x0d; - } - - return status; -} - -static inline unsigned char * -get_status_qdepth_mask(unsigned char qdepth[Z90CRYPT_NUM_APS]) -{ - int i, ix; - - memset(qdepth, 0, Z90CRYPT_NUM_APS); - - for (i = 0; i < get_status_totalcount(); i++) { - ix = SHRT2LONG(i); - qdepth[ix] = LONG2DEVPTR(ix)->dev_caller_count; - } - - return qdepth; -} - -static inline unsigned int * -get_status_perdevice_reqcnt(unsigned int reqcnt[Z90CRYPT_NUM_APS]) -{ - int i, ix; - - memset(reqcnt, 0, Z90CRYPT_NUM_APS * sizeof(int)); - - for (i = 0; i < get_status_totalcount(); i++) { - ix = SHRT2LONG(i); - reqcnt[ix] = LONG2DEVPTR(ix)->dev_total_req_cnt; - } - - return reqcnt; -} - -static inline void -init_work_element(struct work_element *we_p, - struct priv_data *priv_data, pid_t pid) -{ - int step; - - we_p->requestptr = (unsigned char *)we_p + sizeof(struct work_element); - /* Come up with a unique id for this caller. */ - step = atomic_inc_return(&z90crypt_step); - memcpy(we_p->caller_id+0, (void *) &pid, sizeof(pid)); - memcpy(we_p->caller_id+4, (void *) &step, sizeof(step)); - we_p->pid = pid; - we_p->priv_data = priv_data; - we_p->status[0] = STAT_DEFAULT; - we_p->audit[0] = 0x00; - we_p->audit[1] = 0x00; - we_p->audit[2] = 0x00; - we_p->resp_buff_size = 0; - we_p->retcode = 0; - we_p->devindex = -1; - we_p->devtype = -1; - atomic_set(&we_p->alarmrung, 0); - init_waitqueue_head(&we_p->waitq); - INIT_LIST_HEAD(&(we_p->liste)); -} - -static inline int -allocate_work_element(struct work_element **we_pp, - struct priv_data *priv_data_p, pid_t pid) -{ - struct work_element *we_p; - - we_p = (struct work_element *) get_zeroed_page(GFP_KERNEL); - if (!we_p) - return -ENOMEM; - init_work_element(we_p, priv_data_p, pid); - *we_pp = we_p; - return 0; -} - -static inline void -remove_device(struct device *device_p) -{ - if (!device_p || (device_p->disabled != 0)) - return; - device_p->disabled = 1; - z90crypt.hdware_info->type_mask[device_p->dev_type].disabled_count++; - z90crypt.hdware_info->hdware_mask.disabled_count++; -} - -/** - * Bitlength limits for each card - * - * There are new MCLs which allow more bitlengths. See the table for details. - * The MCL must be applied and the newer bitlengths enabled for these to work. - * - * Card Type Old limit New limit - * PCICA ??-2048 same (the lower limit is less than 128 bit...) - * PCICC 512-1024 512-2048 - * PCIXCC_MCL2 512-2048 ----- (applying any GA LIC will make an MCL3 card) - * PCIXCC_MCL3 ----- 128-2048 - * CEX2C 512-2048 128-2048 - * CEX2A ??-2048 same (the lower limit is less than 128 bit...) - * - * ext_bitlens (extended bitlengths) is a global, since you should not apply an - * MCL to just one card in a machine. We assume, at first, that all cards have - * these capabilities. - */ -int ext_bitlens = 1; // This is global -#define PCIXCC_MIN_MOD_SIZE 16 // 128 bits -#define OLD_PCIXCC_MIN_MOD_SIZE 64 // 512 bits -#define PCICC_MIN_MOD_SIZE 64 // 512 bits -#define OLD_PCICC_MAX_MOD_SIZE 128 // 1024 bits -#define MAX_MOD_SIZE 256 // 2048 bits - -static inline int -select_device_type(int *dev_type_p, int bytelength) -{ - static int count = 0; - int PCICA_avail, PCIXCC_MCL3_avail, CEX2C_avail, CEX2A_avail, - index_to_use; - struct status *stat; - if ((*dev_type_p != PCICC) && (*dev_type_p != PCICA) && - (*dev_type_p != PCIXCC_MCL2) && (*dev_type_p != PCIXCC_MCL3) && - (*dev_type_p != CEX2C) && (*dev_type_p != CEX2A) && - (*dev_type_p != ANYDEV)) - return -1; - if (*dev_type_p != ANYDEV) { - stat = &z90crypt.hdware_info->type_mask[*dev_type_p]; - if (stat->st_count > - (stat->disabled_count + stat->user_disabled_count)) - return 0; - return -1; - } - - /** - * Assumption: PCICA, PCIXCC_MCL3, CEX2C, and CEX2A are all similar in - * speed. - * - * PCICA and CEX2A do NOT co-exist, so it would be either one or the - * other present. - */ - stat = &z90crypt.hdware_info->type_mask[PCICA]; - PCICA_avail = stat->st_count - - (stat->disabled_count + stat->user_disabled_count); - stat = &z90crypt.hdware_info->type_mask[PCIXCC_MCL3]; - PCIXCC_MCL3_avail = stat->st_count - - (stat->disabled_count + stat->user_disabled_count); - stat = &z90crypt.hdware_info->type_mask[CEX2C]; - CEX2C_avail = stat->st_count - - (stat->disabled_count + stat->user_disabled_count); - stat = &z90crypt.hdware_info->type_mask[CEX2A]; - CEX2A_avail = stat->st_count - - (stat->disabled_count + stat->user_disabled_count); - if (PCICA_avail || PCIXCC_MCL3_avail || CEX2C_avail || CEX2A_avail) { - /** - * bitlength is a factor, PCICA or CEX2A are the most capable, - * even with the new MCL for PCIXCC. - */ - if ((bytelength < PCIXCC_MIN_MOD_SIZE) || - (!ext_bitlens && (bytelength < OLD_PCIXCC_MIN_MOD_SIZE))) { - if (PCICA_avail) { - *dev_type_p = PCICA; - return 0; - } - if (CEX2A_avail) { - *dev_type_p = CEX2A; - return 0; - } - return -1; - } - - index_to_use = count % (PCICA_avail + PCIXCC_MCL3_avail + - CEX2C_avail + CEX2A_avail); - if (index_to_use < PCICA_avail) - *dev_type_p = PCICA; - else if (index_to_use < (PCICA_avail + PCIXCC_MCL3_avail)) - *dev_type_p = PCIXCC_MCL3; - else if (index_to_use < (PCICA_avail + PCIXCC_MCL3_avail + - CEX2C_avail)) - *dev_type_p = CEX2C; - else - *dev_type_p = CEX2A; - count++; - return 0; - } - - /* Less than OLD_PCIXCC_MIN_MOD_SIZE cannot go to a PCIXCC_MCL2 */ - if (bytelength < OLD_PCIXCC_MIN_MOD_SIZE) - return -1; - stat = &z90crypt.hdware_info->type_mask[PCIXCC_MCL2]; - if (stat->st_count > - (stat->disabled_count + stat->user_disabled_count)) { - *dev_type_p = PCIXCC_MCL2; - return 0; - } - - /** - * Less than PCICC_MIN_MOD_SIZE or more than OLD_PCICC_MAX_MOD_SIZE - * (if we don't have the MCL applied and the newer bitlengths enabled) - * cannot go to a PCICC - */ - if ((bytelength < PCICC_MIN_MOD_SIZE) || - (!ext_bitlens && (bytelength > OLD_PCICC_MAX_MOD_SIZE))) { - return -1; - } - stat = &z90crypt.hdware_info->type_mask[PCICC]; - if (stat->st_count > - (stat->disabled_count + stat->user_disabled_count)) { - *dev_type_p = PCICC; - return 0; - } - - return -1; -} - -/** - * Try the selected number, then the selected type (can be ANYDEV) - */ -static inline int -select_device(int *dev_type_p, int *device_nr_p, int bytelength) -{ - int i, indx, devTp, low_count, low_indx; - struct device_x *index_p; - struct device *dev_ptr; - - PDEBUG("device type = %d, index = %d\n", *dev_type_p, *device_nr_p); - if ((*device_nr_p >= 0) && (*device_nr_p < Z90CRYPT_NUM_DEVS)) { - PDEBUG("trying index = %d\n", *device_nr_p); - dev_ptr = z90crypt.device_p[*device_nr_p]; - - if (dev_ptr && - (dev_ptr->dev_stat != DEV_GONE) && - (dev_ptr->disabled == 0) && - (dev_ptr->user_disabled == 0)) { - PDEBUG("selected by number, index = %d\n", - *device_nr_p); - *dev_type_p = dev_ptr->dev_type; - return *device_nr_p; - } - } - *device_nr_p = -1; - PDEBUG("trying type = %d\n", *dev_type_p); - devTp = *dev_type_p; - if (select_device_type(&devTp, bytelength) == -1) { - PDEBUG("failed to select by type\n"); - return -1; - } - PDEBUG("selected type = %d\n", devTp); - index_p = &z90crypt.hdware_info->type_x_addr[devTp]; - low_count = 0x0000FFFF; - low_indx = -1; - for (i = 0; i < z90crypt.hdware_info->type_mask[devTp].st_count; i++) { - indx = index_p->device_index[i]; - dev_ptr = z90crypt.device_p[indx]; - if (dev_ptr && - (dev_ptr->dev_stat != DEV_GONE) && - (dev_ptr->disabled == 0) && - (dev_ptr->user_disabled == 0) && - (devTp == dev_ptr->dev_type) && - (low_count > dev_ptr->dev_caller_count)) { - low_count = dev_ptr->dev_caller_count; - low_indx = indx; - } - } - *device_nr_p = low_indx; - return low_indx; -} - -static inline int -send_to_crypto_device(struct work_element *we_p) -{ - struct caller *caller_p; - struct device *device_p; - int dev_nr; - int bytelen = ((struct ica_rsa_modexpo *)we_p->buffer)->inputdatalength; - - if (!we_p->requestptr) - return SEN_FATAL_ERROR; - caller_p = (struct caller *)we_p->requestptr; - dev_nr = we_p->devindex; - if (select_device(&we_p->devtype, &dev_nr, bytelen) == -1) { - if (z90crypt.hdware_info->hdware_mask.st_count != 0) - return SEN_RETRY; - else - return SEN_NOT_AVAIL; - } - we_p->devindex = dev_nr; - device_p = z90crypt.device_p[dev_nr]; - if (!device_p) - return SEN_NOT_AVAIL; - if (device_p->dev_type != we_p->devtype) - return SEN_RETRY; - if (device_p->dev_caller_count >= device_p->dev_q_depth) - return SEN_QUEUE_FULL; - PDEBUG("device number prior to send: %d\n", dev_nr); - switch (send_to_AP(dev_nr, z90crypt.cdx, - caller_p->caller_dev_dep_req_l, - caller_p->caller_dev_dep_req_p)) { - case DEV_SEN_EXCEPTION: - PRINTKC("Exception during send to device %d\n", dev_nr); - z90crypt.terminating = 1; - return SEN_FATAL_ERROR; - case DEV_GONE: - PRINTK("Device %d not available\n", dev_nr); - remove_device(device_p); - return SEN_NOT_AVAIL; - case DEV_EMPTY: - return SEN_NOT_AVAIL; - case DEV_NO_WORK: - return SEN_FATAL_ERROR; - case DEV_BAD_MESSAGE: - return SEN_USER_ERROR; - case DEV_QUEUE_FULL: - return SEN_QUEUE_FULL; - default: - case DEV_ONLINE: - break; - } - list_add_tail(&(caller_p->caller_liste), &(device_p->dev_caller_list)); - device_p->dev_caller_count++; - return 0; -} - -/** - * Send puts the user's work on one of two queues: - * the pending queue if the send was successful - * the request queue if the send failed because device full or busy - */ -static inline int -z90crypt_send(struct work_element *we_p, const char *buf) -{ - int rv; - - PDEBUG("PID %d\n", PID()); - - if (CHK_RDWRMASK(we_p->status[0]) != STAT_NOWORK) { - PDEBUG("PID %d tried to send more work but has outstanding " - "work.\n", PID()); - return -EWORKPEND; - } - we_p->devindex = -1; // Reset device number - spin_lock_irq(&queuespinlock); - rv = send_to_crypto_device(we_p); - switch (rv) { - case 0: - we_p->requestsent = jiffies; - we_p->audit[0] |= FP_SENT; - list_add_tail(&we_p->liste, &pending_list); - ++pendingq_count; - we_p->audit[0] |= FP_PENDING; - break; - case SEN_BUSY: - case SEN_QUEUE_FULL: - rv = 0; - we_p->devindex = -1; // any device will do - we_p->requestsent = jiffies; - list_add_tail(&we_p->liste, &request_list); - ++requestq_count; - we_p->audit[0] |= FP_REQUEST; - break; - case SEN_RETRY: - rv = -ERESTARTSYS; - break; - case SEN_NOT_AVAIL: - PRINTK("*** No devices available.\n"); - rv = we_p->retcode = -ENODEV; - we_p->status[0] |= STAT_FAILED; - break; - case REC_OPERAND_INV: - case REC_OPERAND_SIZE: - case REC_EVEN_MOD: - case REC_INVALID_PAD: - rv = we_p->retcode = -EINVAL; - we_p->status[0] |= STAT_FAILED; - break; - default: - we_p->retcode = rv; - we_p->status[0] |= STAT_FAILED; - break; - } - if (rv != -ERESTARTSYS) - SET_RDWRMASK(we_p->status[0], STAT_WRITTEN); - spin_unlock_irq(&queuespinlock); - if (rv == 0) - tasklet_schedule(&reader_tasklet); - return rv; -} - -/** - * process_results copies the user's work from kernel space. - */ -static inline int -z90crypt_process_results(struct work_element *we_p, char __user *buf) -{ - int rv; - - PDEBUG("we_p %p (PID %d)\n", we_p, PID()); - - LONG2DEVPTR(we_p->devindex)->dev_total_req_cnt++; - SET_RDWRMASK(we_p->status[0], STAT_READPEND); - - rv = 0; - if (!we_p->buffer) { - PRINTK("we_p %p PID %d in STAT_READPEND: buffer NULL.\n", - we_p, PID()); - rv = -ENOBUFF; - } - - if (!rv) - if ((rv = copy_to_user(buf, we_p->buffer, we_p->buff_size))) { - PDEBUG("copy_to_user failed: rv = %d\n", rv); - rv = -EFAULT; - } - - if (!rv) - rv = we_p->retcode; - if (!rv) - if (we_p->resp_buff_size - && copy_to_user(we_p->resp_addr, we_p->resp_buff, - we_p->resp_buff_size)) - rv = -EFAULT; - - SET_RDWRMASK(we_p->status[0], STAT_NOWORK); - return rv; -} - -static unsigned char NULL_psmid[8] = -{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; - -/** - * Used in device configuration functions - */ -#define MAX_RESET 90 - -/** - * This is used only for PCICC support - */ -static inline int -is_PKCS11_padded(unsigned char *buffer, int length) -{ - int i; - if ((buffer[0] != 0x00) || (buffer[1] != 0x01)) - return 0; - for (i = 2; i < length; i++) - if (buffer[i] != 0xFF) - break; - if ((i < 10) || (i == length)) - return 0; - if (buffer[i] != 0x00) - return 0; - return 1; -} - -/** - * This is used only for PCICC support - */ -static inline int -is_PKCS12_padded(unsigned char *buffer, int length) -{ - int i; - if ((buffer[0] != 0x00) || (buffer[1] != 0x02)) - return 0; - for (i = 2; i < length; i++) - if (buffer[i] == 0x00) - break; - if ((i < 10) || (i == length)) - return 0; - if (buffer[i] != 0x00) - return 0; - return 1; -} - -/** - * builds struct caller and converts message from generic format to - * device-dependent format - * func is ICARSAMODEXPO or ICARSACRT - * function is PCI_FUNC_KEY_ENCRYPT or PCI_FUNC_KEY_DECRYPT - */ -static inline int -build_caller(struct work_element *we_p, short function) -{ - int rv; - struct caller *caller_p = (struct caller *)we_p->requestptr; - - if ((we_p->devtype != PCICC) && (we_p->devtype != PCICA) && - (we_p->devtype != PCIXCC_MCL2) && (we_p->devtype != PCIXCC_MCL3) && - (we_p->devtype != CEX2C) && (we_p->devtype != CEX2A)) - return SEN_NOT_AVAIL; - - memcpy(caller_p->caller_id, we_p->caller_id, - sizeof(caller_p->caller_id)); - caller_p->caller_dev_dep_req_p = caller_p->caller_dev_dep_req; - caller_p->caller_dev_dep_req_l = MAX_RESPONSE_SIZE; - caller_p->caller_buf_p = we_p->buffer; - INIT_LIST_HEAD(&(caller_p->caller_liste)); - - rv = convert_request(we_p->buffer, we_p->funccode, function, - z90crypt.cdx, we_p->devtype, - &caller_p->caller_dev_dep_req_l, - caller_p->caller_dev_dep_req_p); - if (rv) { - if (rv == SEN_NOT_AVAIL) - PDEBUG("request can't be processed on hdwr avail\n"); - else - PRINTK("Error from convert_request: %d\n", rv); - } - else - memcpy(&(caller_p->caller_dev_dep_req_p[4]), we_p->caller_id,8); - return rv; -} - -static inline void -unbuild_caller(struct device *device_p, struct caller *caller_p) -{ - if (!caller_p) - return; - if (caller_p->caller_liste.next && caller_p->caller_liste.prev) - if (!list_empty(&caller_p->caller_liste)) { - list_del_init(&caller_p->caller_liste); - device_p->dev_caller_count--; - } - memset(caller_p->caller_id, 0, sizeof(caller_p->caller_id)); -} - -static inline int -get_crypto_request_buffer(struct work_element *we_p) -{ - struct ica_rsa_modexpo *mex_p; - struct ica_rsa_modexpo_crt *crt_p; - unsigned char *temp_buffer; - short function; - int rv; - - mex_p = (struct ica_rsa_modexpo *) we_p->buffer; - crt_p = (struct ica_rsa_modexpo_crt *) we_p->buffer; - - PDEBUG("device type input = %d\n", we_p->devtype); - - if (z90crypt.terminating) - return REC_NO_RESPONSE; - if (memcmp(we_p->caller_id, NULL_psmid, 8) == 0) { - PRINTK("psmid zeroes\n"); - return SEN_FATAL_ERROR; - } - if (!we_p->buffer) { - PRINTK("buffer pointer NULL\n"); - return SEN_USER_ERROR; - } - if (!we_p->requestptr) { - PRINTK("caller pointer NULL\n"); - return SEN_USER_ERROR; - } - - if ((we_p->devtype != PCICA) && (we_p->devtype != PCICC) && - (we_p->devtype != PCIXCC_MCL2) && (we_p->devtype != PCIXCC_MCL3) && - (we_p->devtype != CEX2C) && (we_p->devtype != CEX2A) && - (we_p->devtype != ANYDEV)) { - PRINTK("invalid device type\n"); - return SEN_USER_ERROR; - } - - if ((mex_p->inputdatalength < 1) || - (mex_p->inputdatalength > MAX_MOD_SIZE)) { - PRINTK("inputdatalength[%d] is not valid\n", - mex_p->inputdatalength); - return SEN_USER_ERROR; - } - - if (mex_p->outputdatalength < mex_p->inputdatalength) { - PRINTK("outputdatalength[%d] < inputdatalength[%d]\n", - mex_p->outputdatalength, mex_p->inputdatalength); - return SEN_USER_ERROR; - } - - if (!mex_p->inputdata || !mex_p->outputdata) { - PRINTK("inputdata[%p] or outputdata[%p] is NULL\n", - mex_p->outputdata, mex_p->inputdata); - return SEN_USER_ERROR; - } - - /** - * As long as outputdatalength is big enough, we can set the - * outputdatalength equal to the inputdatalength, since that is the - * number of bytes we will copy in any case - */ - mex_p->outputdatalength = mex_p->inputdatalength; - - rv = 0; - switch (we_p->funccode) { - case ICARSAMODEXPO: - if (!mex_p->b_key || !mex_p->n_modulus) - rv = SEN_USER_ERROR; - break; - case ICARSACRT: - if (!IS_EVEN(crt_p->inputdatalength)) { - PRINTK("inputdatalength[%d] is odd, CRT form\n", - crt_p->inputdatalength); - rv = SEN_USER_ERROR; - break; - } - if (!crt_p->bp_key || - !crt_p->bq_key || - !crt_p->np_prime || - !crt_p->nq_prime || - !crt_p->u_mult_inv) { - PRINTK("CRT form, bad data: %p/%p/%p/%p/%p\n", - crt_p->bp_key, crt_p->bq_key, - crt_p->np_prime, crt_p->nq_prime, - crt_p->u_mult_inv); - rv = SEN_USER_ERROR; - } - break; - default: - PRINTK("bad func = %d\n", we_p->funccode); - rv = SEN_USER_ERROR; - break; - } - if (rv != 0) - return rv; - - if (select_device_type(&we_p->devtype, mex_p->inputdatalength) < 0) - return SEN_NOT_AVAIL; - - temp_buffer = (unsigned char *)we_p + sizeof(struct work_element) + - sizeof(struct caller); - if (copy_from_user(temp_buffer, mex_p->inputdata, - mex_p->inputdatalength) != 0) - return SEN_RELEASED; - - function = PCI_FUNC_KEY_ENCRYPT; - switch (we_p->devtype) { - /* PCICA and CEX2A do everything with a simple RSA mod-expo operation */ - case PCICA: - case CEX2A: - function = PCI_FUNC_KEY_ENCRYPT; - break; - /** - * PCIXCC_MCL2 does all Mod-Expo form with a simple RSA mod-expo - * operation, and all CRT forms with a PKCS-1.2 format decrypt. - * PCIXCC_MCL3 and CEX2C do all Mod-Expo and CRT forms with a simple RSA - * mod-expo operation - */ - case PCIXCC_MCL2: - if (we_p->funccode == ICARSAMODEXPO) - function = PCI_FUNC_KEY_ENCRYPT; - else - function = PCI_FUNC_KEY_DECRYPT; - break; - case PCIXCC_MCL3: - case CEX2C: - if (we_p->funccode == ICARSAMODEXPO) - function = PCI_FUNC_KEY_ENCRYPT; - else - function = PCI_FUNC_KEY_DECRYPT; - break; - /** - * PCICC does everything as a PKCS-1.2 format request - */ - case PCICC: - /* PCICC cannot handle input that is is PKCS#1.1 padded */ - if (is_PKCS11_padded(temp_buffer, mex_p->inputdatalength)) { - return SEN_NOT_AVAIL; - } - if (we_p->funccode == ICARSAMODEXPO) { - if (is_PKCS12_padded(temp_buffer, - mex_p->inputdatalength)) - function = PCI_FUNC_KEY_ENCRYPT; - else - function = PCI_FUNC_KEY_DECRYPT; - } else - /* all CRT forms are decrypts */ - function = PCI_FUNC_KEY_DECRYPT; - break; - } - PDEBUG("function: %04x\n", function); - rv = build_caller(we_p, function); - PDEBUG("rv from build_caller = %d\n", rv); - return rv; -} - -static inline int -z90crypt_prepare(struct work_element *we_p, unsigned int funccode, - const char __user *buffer) -{ - int rv; - - we_p->devindex = -1; - if (funccode == ICARSAMODEXPO) - we_p->buff_size = sizeof(struct ica_rsa_modexpo); - else - we_p->buff_size = sizeof(struct ica_rsa_modexpo_crt); - - if (copy_from_user(we_p->buffer, buffer, we_p->buff_size)) - return -EFAULT; - - we_p->audit[0] |= FP_COPYFROM; - SET_RDWRMASK(we_p->status[0], STAT_WRITTEN); - we_p->funccode = funccode; - we_p->devtype = -1; - we_p->audit[0] |= FP_BUFFREQ; - rv = get_crypto_request_buffer(we_p); - switch (rv) { - case 0: - we_p->audit[0] |= FP_BUFFGOT; - break; - case SEN_USER_ERROR: - rv = -EINVAL; - break; - case SEN_QUEUE_FULL: - rv = 0; - break; - case SEN_RELEASED: - rv = -EFAULT; - break; - case REC_NO_RESPONSE: - rv = -ENODEV; - break; - case SEN_NOT_AVAIL: - case EGETBUFF: - rv = -EGETBUFF; - break; - default: - PRINTK("rv = %d\n", rv); - rv = -EGETBUFF; - break; - } - if (CHK_RDWRMASK(we_p->status[0]) == STAT_WRITTEN) - SET_RDWRMASK(we_p->status[0], STAT_DEFAULT); - return rv; -} - -static inline void -purge_work_element(struct work_element *we_p) -{ - struct list_head *lptr; - - spin_lock_irq(&queuespinlock); - list_for_each(lptr, &request_list) { - if (lptr == &we_p->liste) { - list_del_init(lptr); - requestq_count--; - break; - } - } - list_for_each(lptr, &pending_list) { - if (lptr == &we_p->liste) { - list_del_init(lptr); - pendingq_count--; - break; - } - } - spin_unlock_irq(&queuespinlock); -} - -/** - * Build the request and send it. - */ -static inline int -z90crypt_rsa(struct priv_data *private_data_p, pid_t pid, - unsigned int cmd, unsigned long arg) -{ - struct work_element *we_p; - int rv; - - if ((rv = allocate_work_element(&we_p, private_data_p, pid))) { - PDEBUG("PID %d: allocate_work_element returned ENOMEM\n", pid); - return rv; - } - if ((rv = z90crypt_prepare(we_p, cmd, (const char __user *)arg))) - PDEBUG("PID %d: rv = %d from z90crypt_prepare\n", pid, rv); - if (!rv) - if ((rv = z90crypt_send(we_p, (const char *)arg))) - PDEBUG("PID %d: rv %d from z90crypt_send.\n", pid, rv); - if (!rv) { - we_p->audit[0] |= FP_ASLEEP; - wait_event(we_p->waitq, atomic_read(&we_p->alarmrung)); - we_p->audit[0] |= FP_AWAKE; - rv = we_p->retcode; - } - if (!rv) - rv = z90crypt_process_results(we_p, (char __user *)arg); - - if ((we_p->status[0] & STAT_FAILED)) { - switch (rv) { - /** - * EINVAL *after* receive is almost always a padding error or - * length error issued by a coprocessor (not an accelerator). - * We convert this return value to -EGETBUFF which should - * trigger a fallback to software. - */ - case -EINVAL: - if ((we_p->devtype != PCICA) && - (we_p->devtype != CEX2A)) - rv = -EGETBUFF; - break; - case -ETIMEOUT: - if (z90crypt.mask.st_count > 0) - rv = -ERESTARTSYS; // retry with another - else - rv = -ENODEV; // no cards left - /* fall through to clean up request queue */ - case -ERESTARTSYS: - case -ERELEASED: - switch (CHK_RDWRMASK(we_p->status[0])) { - case STAT_WRITTEN: - purge_work_element(we_p); - break; - case STAT_READPEND: - case STAT_NOWORK: - default: - break; - } - break; - default: - we_p->status[0] ^= STAT_FAILED; - break; - } - } - free_page((long)we_p); - return rv; -} - -/** - * This function is a little long, but it's really just one large switch - * statement. - */ -static long -z90crypt_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) -{ - struct priv_data *private_data_p = filp->private_data; - unsigned char *status; - unsigned char *qdepth; - unsigned int *reqcnt; - struct ica_z90_status *pstat; - int ret, i, loopLim, tempstat; - static int deprecated_msg_count1 = 0; - static int deprecated_msg_count2 = 0; - - PDEBUG("filp %p (PID %d), cmd 0x%08X\n", filp, PID(), cmd); - PDEBUG("cmd 0x%08X: dir %s, size 0x%04X, type 0x%02X, nr 0x%02X\n", - cmd, - !_IOC_DIR(cmd) ? "NO" - : ((_IOC_DIR(cmd) == (_IOC_READ|_IOC_WRITE)) ? "RW" - : ((_IOC_DIR(cmd) == _IOC_READ) ? "RD" - : "WR")), - _IOC_SIZE(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd)); - - if (_IOC_TYPE(cmd) != Z90_IOCTL_MAGIC) { - PRINTK("cmd 0x%08X contains bad magic\n", cmd); - return -ENOTTY; - } - - ret = 0; - switch (cmd) { - case ICARSAMODEXPO: - case ICARSACRT: - if (quiesce_z90crypt) { - ret = -EQUIESCE; - break; - } - ret = -ENODEV; // Default if no devices - loopLim = z90crypt.hdware_info->hdware_mask.st_count - - (z90crypt.hdware_info->hdware_mask.disabled_count + - z90crypt.hdware_info->hdware_mask.user_disabled_count); - for (i = 0; i < loopLim; i++) { - ret = z90crypt_rsa(private_data_p, PID(), cmd, arg); - if (ret != -ERESTARTSYS) - break; - } - if (ret == -ERESTARTSYS) - ret = -ENODEV; - break; - - case Z90STAT_TOTALCOUNT: - tempstat = get_status_totalcount(); - if (copy_to_user((int __user *)arg, &tempstat,sizeof(int)) != 0) - ret = -EFAULT; - break; - - case Z90STAT_PCICACOUNT: - tempstat = get_status_PCICAcount(); - if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) - ret = -EFAULT; - break; - - case Z90STAT_PCICCCOUNT: - tempstat = get_status_PCICCcount(); - if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) - ret = -EFAULT; - break; - - case Z90STAT_PCIXCCMCL2COUNT: - tempstat = get_status_PCIXCCMCL2count(); - if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) - ret = -EFAULT; - break; - - case Z90STAT_PCIXCCMCL3COUNT: - tempstat = get_status_PCIXCCMCL3count(); - if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) - ret = -EFAULT; - break; - - case Z90STAT_CEX2CCOUNT: - tempstat = get_status_CEX2Ccount(); - if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) - ret = -EFAULT; - break; - - case Z90STAT_CEX2ACOUNT: - tempstat = get_status_CEX2Acount(); - if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) - ret = -EFAULT; - break; - - case Z90STAT_REQUESTQ_COUNT: - tempstat = get_status_requestq_count(); - if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) - ret = -EFAULT; - break; - - case Z90STAT_PENDINGQ_COUNT: - tempstat = get_status_pendingq_count(); - if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) - ret = -EFAULT; - break; - - case Z90STAT_TOTALOPEN_COUNT: - tempstat = get_status_totalopen_count(); - if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) - ret = -EFAULT; - break; - - case Z90STAT_DOMAIN_INDEX: - tempstat = get_status_domain_index(); - if (copy_to_user((int __user *)arg, &tempstat, sizeof(int)) != 0) - ret = -EFAULT; - break; - - case Z90STAT_STATUS_MASK: - status = kmalloc(Z90CRYPT_NUM_APS, GFP_KERNEL); - if (!status) { - PRINTK("kmalloc for status failed!\n"); - ret = -ENOMEM; - break; - } - get_status_status_mask(status); - if (copy_to_user((char __user *) arg, status, Z90CRYPT_NUM_APS) - != 0) - ret = -EFAULT; - kfree(status); - break; - - case Z90STAT_QDEPTH_MASK: - qdepth = kmalloc(Z90CRYPT_NUM_APS, GFP_KERNEL); - if (!qdepth) { - PRINTK("kmalloc for qdepth failed!\n"); - ret = -ENOMEM; - break; - } - get_status_qdepth_mask(qdepth); - if (copy_to_user((char __user *) arg, qdepth, Z90CRYPT_NUM_APS) != 0) - ret = -EFAULT; - kfree(qdepth); - break; - - case Z90STAT_PERDEV_REQCNT: - reqcnt = kmalloc(sizeof(int) * Z90CRYPT_NUM_APS, GFP_KERNEL); - if (!reqcnt) { - PRINTK("kmalloc for reqcnt failed!\n"); - ret = -ENOMEM; - break; - } - get_status_perdevice_reqcnt(reqcnt); - if (copy_to_user((char __user *) arg, reqcnt, - Z90CRYPT_NUM_APS * sizeof(int)) != 0) - ret = -EFAULT; - kfree(reqcnt); - break; - - /* THIS IS DEPRECATED. USE THE NEW STATUS CALLS */ - case ICAZ90STATUS: - if (deprecated_msg_count1 < 20) { - PRINTK("deprecated call to ioctl (ICAZ90STATUS)!\n"); - deprecated_msg_count1++; - if (deprecated_msg_count1 == 20) - PRINTK("No longer issuing messages related to " - "deprecated call to ICAZ90STATUS.\n"); - } - - pstat = kmalloc(sizeof(struct ica_z90_status), GFP_KERNEL); - if (!pstat) { - PRINTK("kmalloc for pstat failed!\n"); - ret = -ENOMEM; - break; - } - - pstat->totalcount = get_status_totalcount(); - pstat->leedslitecount = get_status_PCICAcount(); - pstat->leeds2count = get_status_PCICCcount(); - pstat->requestqWaitCount = get_status_requestq_count(); - pstat->pendingqWaitCount = get_status_pendingq_count(); - pstat->totalOpenCount = get_status_totalopen_count(); - pstat->cryptoDomain = get_status_domain_index(); - get_status_status_mask(pstat->status); - get_status_qdepth_mask(pstat->qdepth); - - if (copy_to_user((struct ica_z90_status __user *) arg, pstat, - sizeof(struct ica_z90_status)) != 0) - ret = -EFAULT; - kfree(pstat); - break; - - /* THIS IS DEPRECATED. USE THE NEW STATUS CALLS */ - case Z90STAT_PCIXCCCOUNT: - if (deprecated_msg_count2 < 20) { - PRINTK("deprecated ioctl (Z90STAT_PCIXCCCOUNT)!\n"); - deprecated_msg_count2++; - if (deprecated_msg_count2 == 20) - PRINTK("No longer issuing messages about depre" - "cated ioctl Z90STAT_PCIXCCCOUNT.\n"); - } - - tempstat = get_status_PCIXCCcount(); - if (copy_to_user((int *)arg, &tempstat, sizeof(int)) != 0) - ret = -EFAULT; - break; - - case Z90QUIESCE: - if (current->euid != 0) { - PRINTK("QUIESCE fails: euid %d\n", - current->euid); - ret = -EACCES; - } else { - PRINTK("QUIESCE device from PID %d\n", PID()); - quiesce_z90crypt = 1; - } - break; - - default: - /* user passed an invalid IOCTL number */ - PDEBUG("cmd 0x%08X contains invalid ioctl code\n", cmd); - ret = -ENOTTY; - break; - } - - return ret; -} - -static inline int -sprintcl(unsigned char *outaddr, unsigned char *addr, unsigned int len) -{ - int hl, i; - - hl = 0; - for (i = 0; i < len; i++) - hl += sprintf(outaddr+hl, "%01x", (unsigned int) addr[i]); - hl += sprintf(outaddr+hl, " "); - - return hl; -} - -static inline int -sprintrw(unsigned char *outaddr, unsigned char *addr, unsigned int len) -{ - int hl, inl, c, cx; - - hl = sprintf(outaddr, " "); - inl = 0; - for (c = 0; c < (len / 16); c++) { - hl += sprintcl(outaddr+hl, addr+inl, 16); - inl += 16; - } - - cx = len%16; - if (cx) { - hl += sprintcl(outaddr+hl, addr+inl, cx); - inl += cx; - } - - hl += sprintf(outaddr+hl, "\n"); - - return hl; -} - -static inline int -sprinthx(unsigned char *title, unsigned char *outaddr, - unsigned char *addr, unsigned int len) -{ - int hl, inl, r, rx; - - hl = sprintf(outaddr, "\n%s\n", title); - inl = 0; - for (r = 0; r < (len / 64); r++) { - hl += sprintrw(outaddr+hl, addr+inl, 64); - inl += 64; - } - rx = len % 64; - if (rx) { - hl += sprintrw(outaddr+hl, addr+inl, rx); - inl += rx; - } - - hl += sprintf(outaddr+hl, "\n"); - - return hl; -} - -static inline int -sprinthx4(unsigned char *title, unsigned char *outaddr, - unsigned int *array, unsigned int len) -{ - int hl, r; - - hl = sprintf(outaddr, "\n%s\n", title); - - for (r = 0; r < len; r++) { - if ((r % 8) == 0) - hl += sprintf(outaddr+hl, " "); - hl += sprintf(outaddr+hl, "%08X ", array[r]); - if ((r % 8) == 7) - hl += sprintf(outaddr+hl, "\n"); - } - - hl += sprintf(outaddr+hl, "\n"); - - return hl; -} - -static int -z90crypt_status(char *resp_buff, char **start, off_t offset, - int count, int *eof, void *data) -{ - unsigned char *workarea; - int len; - - /* resp_buff is a page. Use the right half for a work area */ - workarea = resp_buff+2000; - len = 0; - len += sprintf(resp_buff+len, "\nz90crypt version: %d.%d.%d\n", - z90crypt_VERSION, z90crypt_RELEASE, z90crypt_VARIANT); - len += sprintf(resp_buff+len, "Cryptographic domain: %d\n", - get_status_domain_index()); - len += sprintf(resp_buff+len, "Total device count: %d\n", - get_status_totalcount()); - len += sprintf(resp_buff+len, "PCICA count: %d\n", - get_status_PCICAcount()); - len += sprintf(resp_buff+len, "PCICC count: %d\n", - get_status_PCICCcount()); - len += sprintf(resp_buff+len, "PCIXCC MCL2 count: %d\n", - get_status_PCIXCCMCL2count()); - len += sprintf(resp_buff+len, "PCIXCC MCL3 count: %d\n", - get_status_PCIXCCMCL3count()); - len += sprintf(resp_buff+len, "CEX2C count: %d\n", - get_status_CEX2Ccount()); - len += sprintf(resp_buff+len, "CEX2A count: %d\n", - get_status_CEX2Acount()); - len += sprintf(resp_buff+len, "requestq count: %d\n", - get_status_requestq_count()); - len += sprintf(resp_buff+len, "pendingq count: %d\n", - get_status_pendingq_count()); - len += sprintf(resp_buff+len, "Total open handles: %d\n\n", - get_status_totalopen_count()); - len += sprinthx( - "Online devices: 1=PCICA 2=PCICC 3=PCIXCC(MCL2) " - "4=PCIXCC(MCL3) 5=CEX2C 6=CEX2A", - resp_buff+len, - get_status_status_mask(workarea), - Z90CRYPT_NUM_APS); - len += sprinthx("Waiting work element counts", - resp_buff+len, - get_status_qdepth_mask(workarea), - Z90CRYPT_NUM_APS); - len += sprinthx4( - "Per-device successfully completed request counts", - resp_buff+len, - get_status_perdevice_reqcnt((unsigned int *)workarea), - Z90CRYPT_NUM_APS); - *eof = 1; - memset(workarea, 0, Z90CRYPT_NUM_APS * sizeof(unsigned int)); - return len; -} - -static inline void -disable_card(int card_index) -{ - struct device *devp; - - devp = LONG2DEVPTR(card_index); - if (!devp || devp->user_disabled) - return; - devp->user_disabled = 1; - z90crypt.hdware_info->hdware_mask.user_disabled_count++; - if (devp->dev_type == -1) - return; - z90crypt.hdware_info->type_mask[devp->dev_type].user_disabled_count++; -} - -static inline void -enable_card(int card_index) -{ - struct device *devp; - - devp = LONG2DEVPTR(card_index); - if (!devp || !devp->user_disabled) - return; - devp->user_disabled = 0; - z90crypt.hdware_info->hdware_mask.user_disabled_count--; - if (devp->dev_type == -1) - return; - z90crypt.hdware_info->type_mask[devp->dev_type].user_disabled_count--; -} - -static int -z90crypt_status_write(struct file *file, const char __user *buffer, - unsigned long count, void *data) -{ - int j, eol; - unsigned char *lbuf, *ptr; - unsigned int local_count; - -#define LBUFSIZE 1200 - lbuf = kmalloc(LBUFSIZE, GFP_KERNEL); - if (!lbuf) { - PRINTK("kmalloc failed!\n"); - return 0; - } - - if (count <= 0) - return 0; - - local_count = UMIN((unsigned int)count, LBUFSIZE-1); - - if (copy_from_user(lbuf, buffer, local_count) != 0) { - kfree(lbuf); - return -EFAULT; - } - - lbuf[local_count] = '\0'; - - ptr = strstr(lbuf, "Online devices"); - if (ptr == 0) { - PRINTK("Unable to parse data (missing \"Online devices\")\n"); - kfree(lbuf); - return count; - } - - ptr = strstr(ptr, "\n"); - if (ptr == 0) { - PRINTK("Unable to parse data (missing newline after \"Online devices\")\n"); - kfree(lbuf); - return count; - } - ptr++; - - if (strstr(ptr, "Waiting work element counts") == NULL) { - PRINTK("Unable to parse data (missing \"Waiting work element counts\")\n"); - kfree(lbuf); - return count; - } - - j = 0; - eol = 0; - while ((j < 64) && (*ptr != '\0')) { - switch (*ptr) { - case '\t': - case ' ': - break; - case '\n': - default: - eol = 1; - break; - case '0': // no device - case '1': // PCICA - case '2': // PCICC - case '3': // PCIXCC_MCL2 - case '4': // PCIXCC_MCL3 - case '5': // CEX2C - case '6': // CEX2A - j++; - break; - case 'd': - case 'D': - disable_card(j); - j++; - break; - case 'e': - case 'E': - enable_card(j); - j++; - break; - } - if (eol) - break; - ptr++; - } - - kfree(lbuf); - return count; -} - -/** - * Functions that run under a timer, with no process id - * - * The task functions: - * z90crypt_reader_task - * helper_send_work - * helper_handle_work_element - * helper_receive_rc - * z90crypt_config_task - * z90crypt_cleanup_task - * - * Helper functions: - * z90crypt_schedule_reader_timer - * z90crypt_schedule_reader_task - * z90crypt_schedule_config_task - * z90crypt_schedule_cleanup_task - */ -static inline int -receive_from_crypto_device(int index, unsigned char *psmid, int *buff_len_p, - unsigned char *buff, unsigned char __user **dest_p_p) -{ - int dv, rv; - struct device *dev_ptr; - struct caller *caller_p; - struct ica_rsa_modexpo *icaMsg_p; - struct list_head *ptr, *tptr; - - memcpy(psmid, NULL_psmid, sizeof(NULL_psmid)); - - if (z90crypt.terminating) - return REC_FATAL_ERROR; - - caller_p = 0; - dev_ptr = z90crypt.device_p[index]; - rv = 0; - do { - if (!dev_ptr || dev_ptr->disabled) { - rv = REC_NO_WORK; // a disabled device can't return work - break; - } - if (dev_ptr->dev_self_x != index) { - PRINTKC("Corrupt dev ptr\n"); - z90crypt.terminating = 1; - rv = REC_FATAL_ERROR; - break; - } - if (!dev_ptr->dev_resp_l || !dev_ptr->dev_resp_p) { - dv = DEV_REC_EXCEPTION; - PRINTK("dev_resp_l = %d, dev_resp_p = %p\n", - dev_ptr->dev_resp_l, dev_ptr->dev_resp_p); - } else { - PDEBUG("Dequeue called for device %d\n", index); - dv = receive_from_AP(index, z90crypt.cdx, - dev_ptr->dev_resp_l, - dev_ptr->dev_resp_p, psmid); - } - switch (dv) { - case DEV_REC_EXCEPTION: - rv = REC_FATAL_ERROR; - z90crypt.terminating = 1; - PRINTKC("Exception in receive from device %d\n", - index); - break; - case DEV_ONLINE: - rv = 0; - break; - case DEV_EMPTY: - rv = REC_EMPTY; - break; - case DEV_NO_WORK: - rv = REC_NO_WORK; - break; - case DEV_BAD_MESSAGE: - case DEV_GONE: - case REC_HARDWAR_ERR: - default: - rv = REC_NO_RESPONSE; - break; - } - if (rv) - break; - if (dev_ptr->dev_caller_count <= 0) { - rv = REC_USER_GONE; - break; - } - - list_for_each_safe(ptr, tptr, &dev_ptr->dev_caller_list) { - caller_p = list_entry(ptr, struct caller, caller_liste); - if (!memcmp(caller_p->caller_id, psmid, - sizeof(caller_p->caller_id))) { - if (!list_empty(&caller_p->caller_liste)) { - list_del_init(ptr); - dev_ptr->dev_caller_count--; - break; - } - } - caller_p = 0; - } - if (!caller_p) { - PRINTKW("Unable to locate PSMID %02X%02X%02X%02X%02X" - "%02X%02X%02X in device list\n", - psmid[0], psmid[1], psmid[2], psmid[3], - psmid[4], psmid[5], psmid[6], psmid[7]); - rv = REC_USER_GONE; - break; - } - - PDEBUG("caller_p after successful receive: %p\n", caller_p); - rv = convert_response(dev_ptr->dev_resp_p, - caller_p->caller_buf_p, buff_len_p, buff); - switch (rv) { - case REC_USE_PCICA: - break; - case REC_OPERAND_INV: - case REC_OPERAND_SIZE: - case REC_EVEN_MOD: - case REC_INVALID_PAD: - PDEBUG("device %d: 'user error' %d\n", index, rv); - break; - case WRONG_DEVICE_TYPE: - case REC_HARDWAR_ERR: - case REC_BAD_MESSAGE: - PRINTKW("device %d: hardware error %d\n", index, rv); - rv = REC_NO_RESPONSE; - break; - default: - PDEBUG("device %d: rv = %d\n", index, rv); - break; - } - } while (0); - - switch (rv) { - case 0: - PDEBUG("Successful receive from device %d\n", index); - icaMsg_p = (struct ica_rsa_modexpo *)caller_p->caller_buf_p; - *dest_p_p = icaMsg_p->outputdata; - if (*buff_len_p == 0) - PRINTK("Zero *buff_len_p\n"); - break; - case REC_NO_RESPONSE: - PRINTKW("Removing device %d from availability\n", index); - remove_device(dev_ptr); - break; - } - - if (caller_p) - unbuild_caller(dev_ptr, caller_p); - - return rv; -} - -static inline void -helper_send_work(int index) -{ - struct work_element *rq_p; - int rv; - - if (list_empty(&request_list)) - return; - requestq_count--; - rq_p = list_entry(request_list.next, struct work_element, liste); - list_del_init(&rq_p->liste); - rq_p->audit[1] |= FP_REMREQUEST; - if (rq_p->devtype == SHRT2DEVPTR(index)->dev_type) { - rq_p->devindex = SHRT2LONG(index); - rv = send_to_crypto_device(rq_p); - if (rv == 0) { - rq_p->requestsent = jiffies; - rq_p->audit[0] |= FP_SENT; - list_add_tail(&rq_p->liste, &pending_list); - ++pendingq_count; - rq_p->audit[0] |= FP_PENDING; - } else { - switch (rv) { - case REC_OPERAND_INV: - case REC_OPERAND_SIZE: - case REC_EVEN_MOD: - case REC_INVALID_PAD: - rq_p->retcode = -EINVAL; - break; - case SEN_NOT_AVAIL: - case SEN_RETRY: - case REC_NO_RESPONSE: - default: - if (z90crypt.mask.st_count > 1) - rq_p->retcode = - -ERESTARTSYS; - else - rq_p->retcode = -ENODEV; - break; - } - rq_p->status[0] |= STAT_FAILED; - rq_p->audit[1] |= FP_AWAKENING; - atomic_set(&rq_p->alarmrung, 1); - wake_up(&rq_p->waitq); - } - } else { - if (z90crypt.mask.st_count > 1) - rq_p->retcode = -ERESTARTSYS; - else - rq_p->retcode = -ENODEV; - rq_p->status[0] |= STAT_FAILED; - rq_p->audit[1] |= FP_AWAKENING; - atomic_set(&rq_p->alarmrung, 1); - wake_up(&rq_p->waitq); - } -} - -static inline void -helper_handle_work_element(int index, unsigned char psmid[8], int rc, - int buff_len, unsigned char *buff, - unsigned char __user *resp_addr) -{ - struct work_element *pq_p; - struct list_head *lptr, *tptr; - - pq_p = 0; - list_for_each_safe(lptr, tptr, &pending_list) { - pq_p = list_entry(lptr, struct work_element, liste); - if (!memcmp(pq_p->caller_id, psmid, sizeof(pq_p->caller_id))) { - list_del_init(lptr); - pendingq_count--; - pq_p->audit[1] |= FP_NOTPENDING; - break; - } - pq_p = 0; - } - - if (!pq_p) { - PRINTK("device %d has work but no caller exists on pending Q\n", - SHRT2LONG(index)); - return; - } - - switch (rc) { - case 0: - pq_p->resp_buff_size = buff_len; - pq_p->audit[1] |= FP_RESPSIZESET; - if (buff_len) { - pq_p->resp_addr = resp_addr; - pq_p->audit[1] |= FP_RESPADDRCOPIED; - memcpy(pq_p->resp_buff, buff, buff_len); - pq_p->audit[1] |= FP_RESPBUFFCOPIED; - } - break; - case REC_OPERAND_INV: - case REC_OPERAND_SIZE: - case REC_EVEN_MOD: - case REC_INVALID_PAD: - PDEBUG("-EINVAL after application error %d\n", rc); - pq_p->retcode = -EINVAL; - pq_p->status[0] |= STAT_FAILED; - break; - case REC_USE_PCICA: - pq_p->retcode = -ERESTARTSYS; - pq_p->status[0] |= STAT_FAILED; - break; - case REC_NO_RESPONSE: - default: - if (z90crypt.mask.st_count > 1) - pq_p->retcode = -ERESTARTSYS; - else - pq_p->retcode = -ENODEV; - pq_p->status[0] |= STAT_FAILED; - break; - } - if ((pq_p->status[0] != STAT_FAILED) || (pq_p->retcode != -ERELEASED)) { - pq_p->audit[1] |= FP_AWAKENING; - atomic_set(&pq_p->alarmrung, 1); - wake_up(&pq_p->waitq); - } -} - -/** - * return TRUE if the work element should be removed from the queue - */ -static inline int -helper_receive_rc(int index, int *rc_p) -{ - switch (*rc_p) { - case 0: - case REC_OPERAND_INV: - case REC_OPERAND_SIZE: - case REC_EVEN_MOD: - case REC_INVALID_PAD: - case REC_USE_PCICA: - break; - - case REC_BUSY: - case REC_NO_WORK: - case REC_EMPTY: - case REC_RETRY_DEV: - case REC_FATAL_ERROR: - return 0; - - case REC_NO_RESPONSE: - break; - - default: - PRINTK("rc %d, device %d converted to REC_NO_RESPONSE\n", - *rc_p, SHRT2LONG(index)); - *rc_p = REC_NO_RESPONSE; - break; - } - return 1; -} - -static inline void -z90crypt_schedule_reader_timer(void) -{ - if (timer_pending(&reader_timer)) - return; - if (mod_timer(&reader_timer, jiffies+(READERTIME*HZ/1000)) != 0) - PRINTK("Timer pending while modifying reader timer\n"); -} - -static void -z90crypt_reader_task(unsigned long ptr) -{ - int workavail, index, rc, buff_len; - unsigned char psmid[8]; - unsigned char __user *resp_addr; - static unsigned char buff[1024]; - - /** - * we use workavail = 2 to ensure 2 passes with nothing dequeued before - * exiting the loop. If (pendingq_count+requestq_count) == 0 after the - * loop, there is no work remaining on the queues. - */ - resp_addr = 0; - workavail = 2; - buff_len = 0; - while (workavail) { - workavail--; - rc = 0; - spin_lock_irq(&queuespinlock); - memset(buff, 0x00, sizeof(buff)); - - /* Dequeue once from each device in round robin. */ - for (index = 0; index < z90crypt.mask.st_count; index++) { - PDEBUG("About to receive.\n"); - rc = receive_from_crypto_device(SHRT2LONG(index), - psmid, - &buff_len, - buff, - &resp_addr); - PDEBUG("Dequeued: rc = %d.\n", rc); - - if (helper_receive_rc(index, &rc)) { - if (rc != REC_NO_RESPONSE) { - helper_send_work(index); - workavail = 2; - } - - helper_handle_work_element(index, psmid, rc, - buff_len, buff, - resp_addr); - } - - if (rc == REC_FATAL_ERROR) - PRINTKW("REC_FATAL_ERROR from device %d!\n", - SHRT2LONG(index)); - } - spin_unlock_irq(&queuespinlock); - } - - if (pendingq_count + requestq_count) - z90crypt_schedule_reader_timer(); -} - -static inline void -z90crypt_schedule_config_task(unsigned int expiration) -{ - if (timer_pending(&config_timer)) - return; - if (mod_timer(&config_timer, jiffies+(expiration*HZ)) != 0) - PRINTK("Timer pending while modifying config timer\n"); -} - -static void -z90crypt_config_task(unsigned long ptr) -{ - int rc; - - PDEBUG("jiffies %ld\n", jiffies); - - if ((rc = refresh_z90crypt(&z90crypt.cdx))) - PRINTK("Error %d detected in refresh_z90crypt.\n", rc); - /* If return was fatal, don't bother reconfiguring */ - if ((rc != TSQ_FATAL_ERROR) && (rc != RSQ_FATAL_ERROR)) - z90crypt_schedule_config_task(CONFIGTIME); -} - -static inline void -z90crypt_schedule_cleanup_task(void) -{ - if (timer_pending(&cleanup_timer)) - return; - if (mod_timer(&cleanup_timer, jiffies+(CLEANUPTIME*HZ)) != 0) - PRINTK("Timer pending while modifying cleanup timer\n"); -} - -static inline void -helper_drain_queues(void) -{ - struct work_element *pq_p; - struct list_head *lptr, *tptr; - - list_for_each_safe(lptr, tptr, &pending_list) { - pq_p = list_entry(lptr, struct work_element, liste); - pq_p->retcode = -ENODEV; - pq_p->status[0] |= STAT_FAILED; - unbuild_caller(LONG2DEVPTR(pq_p->devindex), - (struct caller *)pq_p->requestptr); - list_del_init(lptr); - pendingq_count--; - pq_p->audit[1] |= FP_NOTPENDING; - pq_p->audit[1] |= FP_AWAKENING; - atomic_set(&pq_p->alarmrung, 1); - wake_up(&pq_p->waitq); - } - - list_for_each_safe(lptr, tptr, &request_list) { - pq_p = list_entry(lptr, struct work_element, liste); - pq_p->retcode = -ENODEV; - pq_p->status[0] |= STAT_FAILED; - list_del_init(lptr); - requestq_count--; - pq_p->audit[1] |= FP_REMREQUEST; - pq_p->audit[1] |= FP_AWAKENING; - atomic_set(&pq_p->alarmrung, 1); - wake_up(&pq_p->waitq); - } -} - -static inline void -helper_timeout_requests(void) -{ - struct work_element *pq_p; - struct list_head *lptr, *tptr; - long timelimit; - - timelimit = jiffies - (CLEANUPTIME * HZ); - /* The list is in strict chronological order */ - list_for_each_safe(lptr, tptr, &pending_list) { - pq_p = list_entry(lptr, struct work_element, liste); - if (pq_p->requestsent >= timelimit) - break; - PRINTKW("Purging(PQ) PSMID %02X%02X%02X%02X%02X%02X%02X%02X\n", - ((struct caller *)pq_p->requestptr)->caller_id[0], - ((struct caller *)pq_p->requestptr)->caller_id[1], - ((struct caller *)pq_p->requestptr)->caller_id[2], - ((struct caller *)pq_p->requestptr)->caller_id[3], - ((struct caller *)pq_p->requestptr)->caller_id[4], - ((struct caller *)pq_p->requestptr)->caller_id[5], - ((struct caller *)pq_p->requestptr)->caller_id[6], - ((struct caller *)pq_p->requestptr)->caller_id[7]); - pq_p->retcode = -ETIMEOUT; - pq_p->status[0] |= STAT_FAILED; - /* get this off any caller queue it may be on */ - unbuild_caller(LONG2DEVPTR(pq_p->devindex), - (struct caller *) pq_p->requestptr); - list_del_init(lptr); - pendingq_count--; - pq_p->audit[1] |= FP_TIMEDOUT; - pq_p->audit[1] |= FP_NOTPENDING; - pq_p->audit[1] |= FP_AWAKENING; - atomic_set(&pq_p->alarmrung, 1); - wake_up(&pq_p->waitq); - } - - /** - * If pending count is zero, items left on the request queue may - * never be processed. - */ - if (pendingq_count <= 0) { - list_for_each_safe(lptr, tptr, &request_list) { - pq_p = list_entry(lptr, struct work_element, liste); - if (pq_p->requestsent >= timelimit) - break; - PRINTKW("Purging(RQ) PSMID %02X%02X%02X%02X%02X%02X%02X%02X\n", - ((struct caller *)pq_p->requestptr)->caller_id[0], - ((struct caller *)pq_p->requestptr)->caller_id[1], - ((struct caller *)pq_p->requestptr)->caller_id[2], - ((struct caller *)pq_p->requestptr)->caller_id[3], - ((struct caller *)pq_p->requestptr)->caller_id[4], - ((struct caller *)pq_p->requestptr)->caller_id[5], - ((struct caller *)pq_p->requestptr)->caller_id[6], - ((struct caller *)pq_p->requestptr)->caller_id[7]); - pq_p->retcode = -ETIMEOUT; - pq_p->status[0] |= STAT_FAILED; - list_del_init(lptr); - requestq_count--; - pq_p->audit[1] |= FP_TIMEDOUT; - pq_p->audit[1] |= FP_REMREQUEST; - pq_p->audit[1] |= FP_AWAKENING; - atomic_set(&pq_p->alarmrung, 1); - wake_up(&pq_p->waitq); - } - } -} - -static void -z90crypt_cleanup_task(unsigned long ptr) -{ - PDEBUG("jiffies %ld\n", jiffies); - spin_lock_irq(&queuespinlock); - if (z90crypt.mask.st_count <= 0) // no devices! - helper_drain_queues(); - else - helper_timeout_requests(); - spin_unlock_irq(&queuespinlock); - z90crypt_schedule_cleanup_task(); -} - -static void -z90crypt_schedule_reader_task(unsigned long ptr) -{ - tasklet_schedule(&reader_tasklet); -} - -/** - * Lowlevel Functions: - * - * create_z90crypt: creates and initializes basic data structures - * refresh_z90crypt: re-initializes basic data structures - * find_crypto_devices: returns a count and mask of hardware status - * create_crypto_device: builds the descriptor for a device - * destroy_crypto_device: unallocates the descriptor for a device - * destroy_z90crypt: drains all work, unallocates structs - */ - -/** - * build the z90crypt root structure using the given domain index - */ -static int -create_z90crypt(int *cdx_p) -{ - struct hdware_block *hdware_blk_p; - - memset(&z90crypt, 0x00, sizeof(struct z90crypt)); - z90crypt.domain_established = 0; - z90crypt.len = sizeof(struct z90crypt); - z90crypt.max_count = Z90CRYPT_NUM_DEVS; - z90crypt.cdx = *cdx_p; - - hdware_blk_p = kzalloc(sizeof(struct hdware_block), GFP_ATOMIC); - if (!hdware_blk_p) { - PDEBUG("kmalloc for hardware block failed\n"); - return ENOMEM; - } - z90crypt.hdware_info = hdware_blk_p; - - return 0; -} - -static inline int -helper_scan_devices(int cdx_array[16], int *cdx_p, int *correct_cdx_found) -{ - enum hdstat hd_stat; - int q_depth, dev_type; - int indx, chkdom, numdomains; - - q_depth = dev_type = numdomains = 0; - for (chkdom = 0; chkdom <= 15; cdx_array[chkdom++] = -1); - for (indx = 0; indx < z90crypt.max_count; indx++) { - hd_stat = HD_NOT_THERE; - numdomains = 0; - for (chkdom = 0; chkdom <= 15; chkdom++) { - hd_stat = query_online(indx, chkdom, MAX_RESET, - &q_depth, &dev_type); - if (hd_stat == HD_TSQ_EXCEPTION) { - z90crypt.terminating = 1; - PRINTKC("exception taken!\n"); - break; - } - if (hd_stat == HD_ONLINE) { - cdx_array[numdomains++] = chkdom; - if (*cdx_p == chkdom) { - *correct_cdx_found = 1; - break; - } - } - } - if ((*correct_cdx_found == 1) || (numdomains != 0)) - break; - if (z90crypt.terminating) - break; - } - return numdomains; -} - -static inline int -probe_crypto_domain(int *cdx_p) -{ - int cdx_array[16]; - char cdx_array_text[53], temp[5]; - int correct_cdx_found, numdomains; - - correct_cdx_found = 0; - numdomains = helper_scan_devices(cdx_array, cdx_p, &correct_cdx_found); - - if (z90crypt.terminating) - return TSQ_FATAL_ERROR; - - if (correct_cdx_found) - return 0; - - if (numdomains == 0) { - PRINTKW("Unable to find crypto domain: No devices found\n"); - return Z90C_NO_DEVICES; - } - - if (numdomains == 1) { - if (*cdx_p == -1) { - *cdx_p = cdx_array[0]; - return 0; - } - PRINTKW("incorrect domain: specified = %d, found = %d\n", - *cdx_p, cdx_array[0]); - return Z90C_INCORRECT_DOMAIN; - } - - numdomains--; - sprintf(cdx_array_text, "%d", cdx_array[numdomains]); - while (numdomains) { - numdomains--; - sprintf(temp, ", %d", cdx_array[numdomains]); - strcat(cdx_array_text, temp); - } - - PRINTKW("ambiguous domain detected: specified = %d, found array = %s\n", - *cdx_p, cdx_array_text); - return Z90C_AMBIGUOUS_DOMAIN; -} - -static int -refresh_z90crypt(int *cdx_p) -{ - int i, j, indx, rv; - static struct status local_mask; - struct device *devPtr; - unsigned char oldStat, newStat; - int return_unchanged; - - if (z90crypt.len != sizeof(z90crypt)) - return ENOTINIT; - if (z90crypt.terminating) - return TSQ_FATAL_ERROR; - rv = 0; - if (!z90crypt.hdware_info->hdware_mask.st_count && - !z90crypt.domain_established) { - rv = probe_crypto_domain(cdx_p); - if (z90crypt.terminating) - return TSQ_FATAL_ERROR; - if (rv == Z90C_NO_DEVICES) - return 0; // try later - if (rv) - return rv; - z90crypt.cdx = *cdx_p; - z90crypt.domain_established = 1; - } - rv = find_crypto_devices(&local_mask); - if (rv) { - PRINTK("find crypto devices returned %d\n", rv); - return rv; - } - if (!memcmp(&local_mask, &z90crypt.hdware_info->hdware_mask, - sizeof(struct status))) { - return_unchanged = 1; - for (i = 0; i < Z90CRYPT_NUM_TYPES; i++) { - /** - * Check for disabled cards. If any device is marked - * disabled, destroy it. - */ - for (j = 0; - j < z90crypt.hdware_info->type_mask[i].st_count; - j++) { - indx = z90crypt.hdware_info->type_x_addr[i]. - device_index[j]; - devPtr = z90crypt.device_p[indx]; - if (devPtr && devPtr->disabled) { - local_mask.st_mask[indx] = HD_NOT_THERE; - return_unchanged = 0; - } - } - } - if (return_unchanged == 1) - return 0; - } - - spin_lock_irq(&queuespinlock); - for (i = 0; i < z90crypt.max_count; i++) { - oldStat = z90crypt.hdware_info->hdware_mask.st_mask[i]; - newStat = local_mask.st_mask[i]; - if ((oldStat == HD_ONLINE) && (newStat != HD_ONLINE)) - destroy_crypto_device(i); - else if ((oldStat != HD_ONLINE) && (newStat == HD_ONLINE)) { - rv = create_crypto_device(i); - if (rv >= REC_FATAL_ERROR) - return rv; - if (rv != 0) { - local_mask.st_mask[i] = HD_NOT_THERE; - local_mask.st_count--; - } - } - } - memcpy(z90crypt.hdware_info->hdware_mask.st_mask, local_mask.st_mask, - sizeof(local_mask.st_mask)); - z90crypt.hdware_info->hdware_mask.st_count = local_mask.st_count; - z90crypt.hdware_info->hdware_mask.disabled_count = - local_mask.disabled_count; - refresh_index_array(&z90crypt.mask, &z90crypt.overall_device_x); - for (i = 0; i < Z90CRYPT_NUM_TYPES; i++) - refresh_index_array(&(z90crypt.hdware_info->type_mask[i]), - &(z90crypt.hdware_info->type_x_addr[i])); - spin_unlock_irq(&queuespinlock); - - return rv; -} - -static int -find_crypto_devices(struct status *deviceMask) -{ - int i, q_depth, dev_type; - enum hdstat hd_stat; - - deviceMask->st_count = 0; - deviceMask->disabled_count = 0; - deviceMask->user_disabled_count = 0; - - for (i = 0; i < z90crypt.max_count; i++) { - hd_stat = query_online(i, z90crypt.cdx, MAX_RESET, &q_depth, - &dev_type); - if (hd_stat == HD_TSQ_EXCEPTION) { - z90crypt.terminating = 1; - PRINTKC("Exception during probe for crypto devices\n"); - return TSQ_FATAL_ERROR; - } - deviceMask->st_mask[i] = hd_stat; - if (hd_stat == HD_ONLINE) { - PDEBUG("Got an online crypto!: %d\n", i); - PDEBUG("Got a queue depth of %d\n", q_depth); - PDEBUG("Got a device type of %d\n", dev_type); - if (q_depth <= 0) - return TSQ_FATAL_ERROR; - deviceMask->st_count++; - z90crypt.q_depth_array[i] = q_depth; - z90crypt.dev_type_array[i] = dev_type; - } - } - - return 0; -} - -static int -refresh_index_array(struct status *status_str, struct device_x *index_array) -{ - int i, count; - enum devstat stat; - - i = -1; - count = 0; - do { - stat = status_str->st_mask[++i]; - if (stat == DEV_ONLINE) - index_array->device_index[count++] = i; - } while ((i < Z90CRYPT_NUM_DEVS) && (count < status_str->st_count)); - - return count; -} - -static int -create_crypto_device(int index) -{ - int rv, devstat, total_size; - struct device *dev_ptr; - struct status *type_str_p; - int deviceType; - - dev_ptr = z90crypt.device_p[index]; - if (!dev_ptr) { - total_size = sizeof(struct device) + - z90crypt.q_depth_array[index] * sizeof(int); - - dev_ptr = kzalloc(total_size, GFP_ATOMIC); - if (!dev_ptr) { - PRINTK("kmalloc device %d failed\n", index); - return ENOMEM; - } - dev_ptr->dev_resp_p = kmalloc(MAX_RESPONSE_SIZE, GFP_ATOMIC); - if (!dev_ptr->dev_resp_p) { - kfree(dev_ptr); - PRINTK("kmalloc device %d rec buffer failed\n", index); - return ENOMEM; - } - dev_ptr->dev_resp_l = MAX_RESPONSE_SIZE; - INIT_LIST_HEAD(&(dev_ptr->dev_caller_list)); - } - - devstat = reset_device(index, z90crypt.cdx, MAX_RESET); - if (devstat == DEV_RSQ_EXCEPTION) { - PRINTK("exception during reset device %d\n", index); - kfree(dev_ptr->dev_resp_p); - kfree(dev_ptr); - return RSQ_FATAL_ERROR; - } - if (devstat == DEV_ONLINE) { - dev_ptr->dev_self_x = index; - dev_ptr->dev_type = z90crypt.dev_type_array[index]; - if (dev_ptr->dev_type == NILDEV) { - rv = probe_device_type(dev_ptr); - if (rv) { - PRINTK("rv = %d from probe_device_type %d\n", - rv, index); - kfree(dev_ptr->dev_resp_p); - kfree(dev_ptr); - return rv; - } - } - if (dev_ptr->dev_type == PCIXCC_UNK) { - rv = probe_PCIXCC_type(dev_ptr); - if (rv) { - PRINTK("rv = %d from probe_PCIXCC_type %d\n", - rv, index); - kfree(dev_ptr->dev_resp_p); - kfree(dev_ptr); - return rv; - } - } - deviceType = dev_ptr->dev_type; - z90crypt.dev_type_array[index] = deviceType; - if (deviceType == PCICA) - z90crypt.hdware_info->device_type_array[index] = 1; - else if (deviceType == PCICC) - z90crypt.hdware_info->device_type_array[index] = 2; - else if (deviceType == PCIXCC_MCL2) - z90crypt.hdware_info->device_type_array[index] = 3; - else if (deviceType == PCIXCC_MCL3) - z90crypt.hdware_info->device_type_array[index] = 4; - else if (deviceType == CEX2C) - z90crypt.hdware_info->device_type_array[index] = 5; - else if (deviceType == CEX2A) - z90crypt.hdware_info->device_type_array[index] = 6; - else // No idea how this would happen. - z90crypt.hdware_info->device_type_array[index] = -1; - } - - /** - * 'q_depth' returned by the hardware is one less than - * the actual depth - */ - dev_ptr->dev_q_depth = z90crypt.q_depth_array[index]; - dev_ptr->dev_type = z90crypt.dev_type_array[index]; - dev_ptr->dev_stat = devstat; - dev_ptr->disabled = 0; - z90crypt.device_p[index] = dev_ptr; - - if (devstat == DEV_ONLINE) { - if (z90crypt.mask.st_mask[index] != DEV_ONLINE) { - z90crypt.mask.st_mask[index] = DEV_ONLINE; - z90crypt.mask.st_count++; - } - deviceType = dev_ptr->dev_type; - type_str_p = &z90crypt.hdware_info->type_mask[deviceType]; - if (type_str_p->st_mask[index] != DEV_ONLINE) { - type_str_p->st_mask[index] = DEV_ONLINE; - type_str_p->st_count++; - } - } - - return 0; -} - -static int -destroy_crypto_device(int index) -{ - struct device *dev_ptr; - int t, disabledFlag; - - dev_ptr = z90crypt.device_p[index]; - - /* remember device type; get rid of device struct */ - if (dev_ptr) { - disabledFlag = dev_ptr->disabled; - t = dev_ptr->dev_type; - kfree(dev_ptr->dev_resp_p); - kfree(dev_ptr); - } else { - disabledFlag = 0; - t = -1; - } - z90crypt.device_p[index] = 0; - - /* if the type is valid, remove the device from the type_mask */ - if ((t != -1) && z90crypt.hdware_info->type_mask[t].st_mask[index]) { - z90crypt.hdware_info->type_mask[t].st_mask[index] = 0x00; - z90crypt.hdware_info->type_mask[t].st_count--; - if (disabledFlag == 1) - z90crypt.hdware_info->type_mask[t].disabled_count--; - } - if (z90crypt.mask.st_mask[index] != DEV_GONE) { - z90crypt.mask.st_mask[index] = DEV_GONE; - z90crypt.mask.st_count--; - } - z90crypt.hdware_info->device_type_array[index] = 0; - - return 0; -} - -static void -destroy_z90crypt(void) -{ - int i; - - for (i = 0; i < z90crypt.max_count; i++) - if (z90crypt.device_p[i]) - destroy_crypto_device(i); - kfree(z90crypt.hdware_info); - memset((void *)&z90crypt, 0, sizeof(z90crypt)); -} - -static unsigned char static_testmsg[384] = { -0x00,0x00,0x00,0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x00,0x06,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x58, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x43,0x43, -0x41,0x2d,0x41,0x50,0x50,0x4c,0x20,0x20,0x20,0x01,0x01,0x01,0x00,0x00,0x00,0x00, -0x50,0x4b,0x00,0x00,0x00,0x00,0x01,0x1c,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x05,0xb8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x70,0x00,0x41,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x54,0x32, -0x01,0x00,0xa0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0xb8,0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x0a,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x00,0x49,0x43,0x53,0x46, -0x20,0x20,0x20,0x20,0x50,0x4b,0x0a,0x00,0x50,0x4b,0x43,0x53,0x2d,0x31,0x2e,0x32, -0x37,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0x00,0x11,0x22,0x33,0x44, -0x55,0x66,0x77,0x88,0x99,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0x00, -0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0x00,0x11,0x22,0x33,0x44,0x55,0x66, -0x77,0x88,0x99,0x00,0x11,0x22,0x33,0x5d,0x00,0x5b,0x00,0x77,0x88,0x1e,0x00,0x00, -0x57,0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x4f,0x00,0x00,0x00,0x03,0x02,0x00,0x00, -0x40,0x01,0x00,0x01,0xce,0x02,0x68,0x2d,0x5f,0xa9,0xde,0x0c,0xf6,0xd2,0x7b,0x58, -0x4b,0xf9,0x28,0x68,0x3d,0xb4,0xf4,0xef,0x78,0xd5,0xbe,0x66,0x63,0x42,0xef,0xf8, -0xfd,0xa4,0xf8,0xb0,0x8e,0x29,0xc2,0xc9,0x2e,0xd8,0x45,0xb8,0x53,0x8c,0x6f,0x4e, -0x72,0x8f,0x6c,0x04,0x9c,0x88,0xfc,0x1e,0xc5,0x83,0x55,0x57,0xf7,0xdd,0xfd,0x4f, -0x11,0x36,0x95,0x5d,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 -}; - -static int -probe_device_type(struct device *devPtr) -{ - int rv, dv, i, index, length; - unsigned char psmid[8]; - static unsigned char loc_testmsg[sizeof(static_testmsg)]; - - index = devPtr->dev_self_x; - rv = 0; - do { - memcpy(loc_testmsg, static_testmsg, sizeof(static_testmsg)); - length = sizeof(static_testmsg) - 24; - /* the -24 allows for the header */ - dv = send_to_AP(index, z90crypt.cdx, length, loc_testmsg); - if (dv) { - PDEBUG("dv returned by send during probe: %d\n", dv); - if (dv == DEV_SEN_EXCEPTION) { - rv = SEN_FATAL_ERROR; - PRINTKC("exception in send to AP %d\n", index); - break; - } - PDEBUG("return value from send_to_AP: %d\n", rv); - switch (dv) { - case DEV_GONE: - PDEBUG("dev %d not available\n", index); - rv = SEN_NOT_AVAIL; - break; - case DEV_ONLINE: - rv = 0; - break; - case DEV_EMPTY: - rv = SEN_NOT_AVAIL; - break; - case DEV_NO_WORK: - rv = SEN_FATAL_ERROR; - break; - case DEV_BAD_MESSAGE: - rv = SEN_USER_ERROR; - break; - case DEV_QUEUE_FULL: - rv = SEN_QUEUE_FULL; - break; - default: - PRINTK("unknown dv=%d for dev %d\n", dv, index); - rv = SEN_NOT_AVAIL; - break; - } - } - - if (rv) - break; - - for (i = 0; i < 6; i++) { - mdelay(300); - dv = receive_from_AP(index, z90crypt.cdx, - devPtr->dev_resp_l, - devPtr->dev_resp_p, psmid); - PDEBUG("dv returned by DQ = %d\n", dv); - if (dv == DEV_REC_EXCEPTION) { - rv = REC_FATAL_ERROR; - PRINTKC("exception in dequeue %d\n", - index); - break; - } - switch (dv) { - case DEV_ONLINE: - rv = 0; - break; - case DEV_EMPTY: - rv = REC_EMPTY; - break; - case DEV_NO_WORK: - rv = REC_NO_WORK; - break; - case DEV_BAD_MESSAGE: - case DEV_GONE: - default: - rv = REC_NO_RESPONSE; - break; - } - if ((rv != 0) && (rv != REC_NO_WORK)) - break; - if (rv == 0) - break; - } - if (rv) - break; - rv = (devPtr->dev_resp_p[0] == 0x00) && - (devPtr->dev_resp_p[1] == 0x86); - if (rv) - devPtr->dev_type = PCICC; - else - devPtr->dev_type = PCICA; - rv = 0; - } while (0); - /* In a general error case, the card is not marked online */ - return rv; -} - -static unsigned char MCL3_testmsg[] = { -0x00,0x00,0x00,0x00,0xEE,0xEE,0xEE,0xEE,0xEE,0xEE,0xEE,0xEE, -0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x58,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x43,0x41,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x00,0x00,0x00,0x01,0xC4,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x24,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xDC,0x02,0x00,0x00,0x00,0x54,0x32, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE8,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x24, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, -0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x0A,0x4D,0x52,0x50,0x20,0x20,0x20,0x20,0x20, -0x00,0x42,0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D, -0x0E,0x0F,0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD, -0xEE,0xFF,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA,0x99,0x88,0x77,0x66,0x55,0x44,0x33,0x22, -0x11,0x00,0x01,0x23,0x45,0x67,0x89,0xAB,0xCD,0xEF,0xFE,0xDC,0xBA,0x98,0x76,0x54, -0x32,0x10,0x00,0x9A,0x00,0x98,0x00,0x00,0x1E,0x00,0x00,0x94,0x00,0x00,0x00,0x00, -0x04,0x00,0x00,0x8C,0x00,0x00,0x00,0x40,0x02,0x00,0x00,0x40,0xBA,0xE8,0x23,0x3C, -0x75,0xF3,0x91,0x61,0xD6,0x73,0x39,0xCF,0x7B,0x6D,0x8E,0x61,0x97,0x63,0x9E,0xD9, -0x60,0x55,0xD6,0xC7,0xEF,0xF8,0x1E,0x63,0x95,0x17,0xCC,0x28,0x45,0x60,0x11,0xC5, -0xC4,0x4E,0x66,0xC6,0xE6,0xC3,0xDE,0x8A,0x19,0x30,0xCF,0x0E,0xD7,0xAA,0xDB,0x01, -0xD8,0x00,0xBB,0x8F,0x39,0x9F,0x64,0x28,0xF5,0x7A,0x77,0x49,0xCC,0x6B,0xA3,0x91, -0x97,0x70,0xE7,0x60,0x1E,0x39,0xE1,0xE5,0x33,0xE1,0x15,0x63,0x69,0x08,0x80,0x4C, -0x67,0xC4,0x41,0x8F,0x48,0xDF,0x26,0x98,0xF1,0xD5,0x8D,0x88,0xD9,0x6A,0xA4,0x96, -0xC5,0x84,0xD9,0x30,0x49,0x67,0x7D,0x19,0xB1,0xB3,0x45,0x4D,0xB2,0x53,0x9A,0x47, -0x3C,0x7C,0x55,0xBF,0xCC,0x85,0x00,0x36,0xF1,0x3D,0x93,0x53 -}; - -static int -probe_PCIXCC_type(struct device *devPtr) -{ - int rv, dv, i, index, length; - unsigned char psmid[8]; - static unsigned char loc_testmsg[548]; - struct CPRBX *cprbx_p; - - index = devPtr->dev_self_x; - rv = 0; - do { - memcpy(loc_testmsg, MCL3_testmsg, sizeof(MCL3_testmsg)); - length = sizeof(MCL3_testmsg) - 0x0C; - dv = send_to_AP(index, z90crypt.cdx, length, loc_testmsg); - if (dv) { - PDEBUG("dv returned = %d\n", dv); - if (dv == DEV_SEN_EXCEPTION) { - rv = SEN_FATAL_ERROR; - PRINTKC("exception in send to AP %d\n", index); - break; - } - PDEBUG("return value from send_to_AP: %d\n", rv); - switch (dv) { - case DEV_GONE: - PDEBUG("dev %d not available\n", index); - rv = SEN_NOT_AVAIL; - break; - case DEV_ONLINE: - rv = 0; - break; - case DEV_EMPTY: - rv = SEN_NOT_AVAIL; - break; - case DEV_NO_WORK: - rv = SEN_FATAL_ERROR; - break; - case DEV_BAD_MESSAGE: - rv = SEN_USER_ERROR; - break; - case DEV_QUEUE_FULL: - rv = SEN_QUEUE_FULL; - break; - default: - PRINTK("unknown dv=%d for dev %d\n", dv, index); - rv = SEN_NOT_AVAIL; - break; - } - } - - if (rv) - break; - - for (i = 0; i < 6; i++) { - mdelay(300); - dv = receive_from_AP(index, z90crypt.cdx, - devPtr->dev_resp_l, - devPtr->dev_resp_p, psmid); - PDEBUG("dv returned by DQ = %d\n", dv); - if (dv == DEV_REC_EXCEPTION) { - rv = REC_FATAL_ERROR; - PRINTKC("exception in dequeue %d\n", - index); - break; - } - switch (dv) { - case DEV_ONLINE: - rv = 0; - break; - case DEV_EMPTY: - rv = REC_EMPTY; - break; - case DEV_NO_WORK: - rv = REC_NO_WORK; - break; - case DEV_BAD_MESSAGE: - case DEV_GONE: - default: - rv = REC_NO_RESPONSE; - break; - } - if ((rv != 0) && (rv != REC_NO_WORK)) - break; - if (rv == 0) - break; - } - if (rv) - break; - cprbx_p = (struct CPRBX *) (devPtr->dev_resp_p + 48); - if ((cprbx_p->ccp_rtcode == 8) && (cprbx_p->ccp_rscode == 33)) { - devPtr->dev_type = PCIXCC_MCL2; - PDEBUG("device %d is MCL2\n", index); - } else { - devPtr->dev_type = PCIXCC_MCL3; - PDEBUG("device %d is MCL3\n", index); - } - } while (0); - /* In a general error case, the card is not marked online */ - return rv; -} - -module_init(z90crypt_init_module); -module_exit(z90crypt_cleanup_module); diff --git a/include/asm-s390/z90crypt.h b/include/asm-s390/z90crypt.h deleted file mode 100644 index 31a2439b07b..00000000000 --- a/include/asm-s390/z90crypt.h +++ /dev/null @@ -1,212 +0,0 @@ -/* - * include/asm-s390/z90crypt.h - * - * z90crypt 1.3.3 (user-visible header) - * - * Copyright (C) 2001, 2005 IBM Corporation - * Author(s): Robert Burroughs - * Eric Rossman (edrossma@us.ibm.com) - * - * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#ifndef __ASM_S390_Z90CRYPT_H -#define __ASM_S390_Z90CRYPT_H -#include - -#define z90crypt_VERSION 1 -#define z90crypt_RELEASE 3 // 2 = PCIXCC, 3 = rewrite for coding standards -#define z90crypt_VARIANT 3 // 3 = CEX2A support - -/** - * struct ica_rsa_modexpo - * - * Requirements: - * - outputdatalength is at least as large as inputdatalength. - * - All key parts are right justified in their fields, padded on - * the left with zeroes. - * - length(b_key) = inputdatalength - * - length(n_modulus) = inputdatalength - */ -struct ica_rsa_modexpo { - char __user * inputdata; - unsigned int inputdatalength; - char __user * outputdata; - unsigned int outputdatalength; - char __user * b_key; - char __user * n_modulus; -}; - -/** - * struct ica_rsa_modexpo_crt - * - * Requirements: - * - inputdatalength is even. - * - outputdatalength is at least as large as inputdatalength. - * - All key parts are right justified in their fields, padded on - * the left with zeroes. - * - length(bp_key) = inputdatalength/2 + 8 - * - length(bq_key) = inputdatalength/2 - * - length(np_key) = inputdatalength/2 + 8 - * - length(nq_key) = inputdatalength/2 - * - length(u_mult_inv) = inputdatalength/2 + 8 - */ -struct ica_rsa_modexpo_crt { - char __user * inputdata; - unsigned int inputdatalength; - char __user * outputdata; - unsigned int outputdatalength; - char __user * bp_key; - char __user * bq_key; - char __user * np_prime; - char __user * nq_prime; - char __user * u_mult_inv; -}; - -#define Z90_IOCTL_MAGIC 'z' // NOTE: Need to allocate from linux folks - -/** - * Interface notes: - * - * The ioctl()s which are implemented (along with relevant details) - * are: - * - * ICARSAMODEXPO - * Perform an RSA operation using a Modulus-Exponent pair - * This takes an ica_rsa_modexpo struct as its arg. - * - * NOTE: please refer to the comments preceding this structure - * for the implementation details for the contents of the - * block - * - * ICARSACRT - * Perform an RSA operation using a Chinese-Remainder Theorem key - * This takes an ica_rsa_modexpo_crt struct as its arg. - * - * NOTE: please refer to the comments preceding this structure - * for the implementation details for the contents of the - * block - * - * Z90STAT_TOTALCOUNT - * Return an integer count of all device types together. - * - * Z90STAT_PCICACOUNT - * Return an integer count of all PCICAs. - * - * Z90STAT_PCICCCOUNT - * Return an integer count of all PCICCs. - * - * Z90STAT_PCIXCCMCL2COUNT - * Return an integer count of all MCL2 PCIXCCs. - * - * Z90STAT_PCIXCCMCL3COUNT - * Return an integer count of all MCL3 PCIXCCs. - * - * Z90STAT_CEX2CCOUNT - * Return an integer count of all CEX2Cs. - * - * Z90STAT_CEX2ACOUNT - * Return an integer count of all CEX2As. - * - * Z90STAT_REQUESTQ_COUNT - * Return an integer count of the number of entries waiting to be - * sent to a device. - * - * Z90STAT_PENDINGQ_COUNT - * Return an integer count of the number of entries sent to a - * device awaiting the reply. - * - * Z90STAT_TOTALOPEN_COUNT - * Return an integer count of the number of open file handles. - * - * Z90STAT_DOMAIN_INDEX - * Return the integer value of the Cryptographic Domain. - * - * Z90STAT_STATUS_MASK - * Return an 64 element array of unsigned chars for the status of - * all devices. - * 0x01: PCICA - * 0x02: PCICC - * 0x03: PCIXCC_MCL2 - * 0x04: PCIXCC_MCL3 - * 0x05: CEX2C - * 0x06: CEX2A - * 0x0d: device is disabled via the proc filesystem - * - * Z90STAT_QDEPTH_MASK - * Return an 64 element array of unsigned chars for the queue - * depth of all devices. - * - * Z90STAT_PERDEV_REQCNT - * Return an 64 element array of unsigned integers for the number - * of successfully completed requests per device since the device - * was detected and made available. - * - * ICAZ90STATUS (deprecated) - * Return some device driver status in a ica_z90_status struct - * This takes an ica_z90_status struct as its arg. - * - * NOTE: this ioctl() is deprecated, and has been replaced with - * single ioctl()s for each type of status being requested - * - * Z90STAT_PCIXCCCOUNT (deprecated) - * Return an integer count of all PCIXCCs (MCL2 + MCL3). - * This is DEPRECATED now that MCL3 PCIXCCs are treated differently from - * MCL2 PCIXCCs. - * - * Z90QUIESCE (not recommended) - * Quiesce the driver. This is intended to stop all new - * requests from being processed. Its use is NOT recommended, - * except in circumstances where there is no other way to stop - * callers from accessing the driver. Its original use was to - * allow the driver to be "drained" of work in preparation for - * a system shutdown. - * - * NOTE: once issued, this ban on new work cannot be undone - * except by unloading and reloading the driver. - */ - -/** - * Supported ioctl calls - */ -#define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, Z90_IOCTL_MAGIC, 0x05, 0) -#define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, Z90_IOCTL_MAGIC, 0x06, 0) - -/* DEPRECATED status calls (bound for removal at some point) */ -#define ICAZ90STATUS _IOR(Z90_IOCTL_MAGIC, 0x10, struct ica_z90_status) -#define Z90STAT_PCIXCCCOUNT _IOR(Z90_IOCTL_MAGIC, 0x43, int) - -/* unrelated to ICA callers */ -#define Z90QUIESCE _IO(Z90_IOCTL_MAGIC, 0x11) - -/* New status calls */ -#define Z90STAT_TOTALCOUNT _IOR(Z90_IOCTL_MAGIC, 0x40, int) -#define Z90STAT_PCICACOUNT _IOR(Z90_IOCTL_MAGIC, 0x41, int) -#define Z90STAT_PCICCCOUNT _IOR(Z90_IOCTL_MAGIC, 0x42, int) -#define Z90STAT_PCIXCCMCL2COUNT _IOR(Z90_IOCTL_MAGIC, 0x4b, int) -#define Z90STAT_PCIXCCMCL3COUNT _IOR(Z90_IOCTL_MAGIC, 0x4c, int) -#define Z90STAT_CEX2CCOUNT _IOR(Z90_IOCTL_MAGIC, 0x4d, int) -#define Z90STAT_CEX2ACOUNT _IOR(Z90_IOCTL_MAGIC, 0x4e, int) -#define Z90STAT_REQUESTQ_COUNT _IOR(Z90_IOCTL_MAGIC, 0x44, int) -#define Z90STAT_PENDINGQ_COUNT _IOR(Z90_IOCTL_MAGIC, 0x45, int) -#define Z90STAT_TOTALOPEN_COUNT _IOR(Z90_IOCTL_MAGIC, 0x46, int) -#define Z90STAT_DOMAIN_INDEX _IOR(Z90_IOCTL_MAGIC, 0x47, int) -#define Z90STAT_STATUS_MASK _IOR(Z90_IOCTL_MAGIC, 0x48, char[64]) -#define Z90STAT_QDEPTH_MASK _IOR(Z90_IOCTL_MAGIC, 0x49, char[64]) -#define Z90STAT_PERDEV_REQCNT _IOR(Z90_IOCTL_MAGIC, 0x4a, int[64]) - -#endif /* __ASM_S390_Z90CRYPT_H */ -- cgit v1.2.3-70-g09d2 From 1534c3820c26aca4e2567f97b8add8bea40e7e2b Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:58:25 +0200 Subject: [S390] zcrypt adjunct processor bus. Add a bus for the adjunct processor interface. Up to 64 devices can be connect to the ap bus interface, each device with 16 domains. That makes 1024 message queues. The interface is asynchronous, the answer to a message sent to a queue needs to be received at some later point in time. Unfortunately the interface does not provide interrupts when a message reply is pending. So the ap bus needs to implement some fancy polling, each active queue is polled once per 1/HZ second or continuously if an idle cpus exsists and the poll thread is activ (see poll_thread parameter). The ap bus uses the sysfs path /sys/bus/ap and has two bus attributes, ap_domain and config_time. The ap_domain selects one of the 16 domains to be used for this system. This limits the maximum number of ap devices to 64. The config_time attribute contains the number of seconds between two ap bus scans to find new devices. The ap bus uses the modalias entries of the form "ap:tN" to autoload the ap driver for hardware type N. Currently known types are: 3 - PCICC, 4 - PCICA, 5 - PCIXCC, 6 - CEX2A and 7 - CEX2C. Signed-off-by: Cornelia Huck Signed-off-by: Ralph Wuerthner Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/ap_bus.c | 1221 +++++++++++++++++++++++++++++++++++++++ drivers/s390/crypto/ap_bus.h | 158 +++++ include/linux/mod_devicetable.h | 11 + scripts/mod/file2alias.c | 12 + 4 files changed, 1402 insertions(+) create mode 100644 drivers/s390/crypto/ap_bus.c create mode 100644 drivers/s390/crypto/ap_bus.h (limited to 'drivers') diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c new file mode 100644 index 00000000000..6ed0985c0c9 --- /dev/null +++ b/drivers/s390/crypto/ap_bus.c @@ -0,0 +1,1221 @@ +/* + * linux/drivers/s390/crypto/ap_bus.c + * + * Copyright (C) 2006 IBM Corporation + * Author(s): Cornelia Huck + * Martin Schwidefsky + * Ralph Wuerthner + * + * Adjunct processor bus. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "ap_bus.h" + +/* Some prototypes. */ +static void ap_scan_bus(void *); +static void ap_poll_all(unsigned long); +static void ap_poll_timeout(unsigned long); +static int ap_poll_thread_start(void); +static void ap_poll_thread_stop(void); + +/** + * Module description. + */ +MODULE_AUTHOR("IBM Corporation"); +MODULE_DESCRIPTION("Adjunct Processor Bus driver, " + "Copyright 2006 IBM Corporation"); +MODULE_LICENSE("GPL"); + +/** + * Module parameter + */ +int ap_domain_index = -1; /* Adjunct Processor Domain Index */ +module_param_named(domain, ap_domain_index, int, 0000); +MODULE_PARM_DESC(domain, "domain index for ap devices"); +EXPORT_SYMBOL(ap_domain_index); + +static int ap_thread_flag = 1; +module_param_named(poll_thread, ap_thread_flag, int, 0000); +MODULE_PARM_DESC(poll_thread, "Turn on/off poll thread, default is 1 (on)."); + +static struct device *ap_root_device = NULL; + +/** + * Workqueue & timer for bus rescan. + */ +static struct workqueue_struct *ap_work_queue; +static struct timer_list ap_config_timer; +static int ap_config_time = AP_CONFIG_TIME; +static DECLARE_WORK(ap_config_work, ap_scan_bus, NULL); + +/** + * Tasklet & timer for AP request polling. + */ +static struct timer_list ap_poll_timer = TIMER_INITIALIZER(ap_poll_timeout,0,0); +static DECLARE_TASKLET(ap_tasklet, ap_poll_all, 0); +static atomic_t ap_poll_requests = ATOMIC_INIT(0); +static DECLARE_WAIT_QUEUE_HEAD(ap_poll_wait); +static struct task_struct *ap_poll_kthread = NULL; +static DEFINE_MUTEX(ap_poll_thread_mutex); + +/** + * Test if ap instructions are available. + * + * Returns 0 if the ap instructions are installed. + */ +static inline int ap_instructions_available(void) +{ + register unsigned long reg0 asm ("0") = AP_MKQID(0,0); + register unsigned long reg1 asm ("1") = -ENODEV; + register unsigned long reg2 asm ("2") = 0UL; + + asm volatile( + " .long 0xb2af0000\n" /* PQAP(TAPQ) */ + "0: la %1,0\n" + "1:\n" + EX_TABLE(0b, 1b) + : "+d" (reg0), "+d" (reg1), "+d" (reg2) : : "cc" ); + return reg1; +} + +/** + * Test adjunct processor queue. + * @qid: the ap queue number + * @queue_depth: pointer to queue depth value + * @device_type: pointer to device type value + * + * Returns ap queue status structure. + */ +static inline struct ap_queue_status +ap_test_queue(ap_qid_t qid, int *queue_depth, int *device_type) +{ + register unsigned long reg0 asm ("0") = qid; + register struct ap_queue_status reg1 asm ("1"); + register unsigned long reg2 asm ("2") = 0UL; + + asm volatile(".long 0xb2af0000" /* PQAP(TAPQ) */ + : "+d" (reg0), "=d" (reg1), "+d" (reg2) : : "cc"); + *device_type = (int) (reg2 >> 24); + *queue_depth = (int) (reg2 & 0xff); + return reg1; +} + +/** + * Reset adjunct processor queue. + * @qid: the ap queue number + * + * Returns ap queue status structure. + */ +static inline struct ap_queue_status ap_reset_queue(ap_qid_t qid) +{ + register unsigned long reg0 asm ("0") = qid | 0x01000000UL; + register struct ap_queue_status reg1 asm ("1"); + register unsigned long reg2 asm ("2") = 0UL; + + asm volatile( + ".long 0xb2af0000" /* PQAP(RAPQ) */ + : "+d" (reg0), "=d" (reg1), "+d" (reg2) : : "cc"); + return reg1; +} + +/** + * Send message to adjunct processor queue. + * @qid: the ap queue number + * @psmid: the program supplied message identifier + * @msg: the message text + * @length: the message length + * + * Returns ap queue status structure. + * + * Condition code 1 on NQAP can't happen because the L bit is 1. + * + * Condition code 2 on NQAP also means the send is incomplete, + * because a segment boundary was reached. The NQAP is repeated. + */ +static inline struct ap_queue_status +__ap_send(ap_qid_t qid, unsigned long long psmid, void *msg, size_t length) +{ + typedef struct { char _[length]; } msgblock; + register unsigned long reg0 asm ("0") = qid | 0x40000000UL; + register struct ap_queue_status reg1 asm ("1"); + register unsigned long reg2 asm ("2") = (unsigned long) msg; + register unsigned long reg3 asm ("3") = (unsigned long) length; + register unsigned long reg4 asm ("4") = (unsigned int) (psmid >> 32); + register unsigned long reg5 asm ("5") = (unsigned int) psmid; + + asm volatile ( + "0: .long 0xb2ad0042\n" /* DQAP */ + " brc 2,0b" + : "+d" (reg0), "=d" (reg1), "+d" (reg2), "+d" (reg3) + : "d" (reg4), "d" (reg5), "m" (*(msgblock *) msg) + : "cc" ); + return reg1; +} + +int ap_send(ap_qid_t qid, unsigned long long psmid, void *msg, size_t length) +{ + struct ap_queue_status status; + + status = __ap_send(qid, psmid, msg, length); + switch (status.response_code) { + case AP_RESPONSE_NORMAL: + return 0; + case AP_RESPONSE_Q_FULL: + return -EBUSY; + default: /* Device is gone. */ + return -ENODEV; + } +} +EXPORT_SYMBOL(ap_send); + +/* + * Receive message from adjunct processor queue. + * @qid: the ap queue number + * @psmid: pointer to program supplied message identifier + * @msg: the message text + * @length: the message length + * + * Returns ap queue status structure. + * + * Condition code 1 on DQAP means the receive has taken place + * but only partially. The response is incomplete, hence the + * DQAP is repeated. + * + * Condition code 2 on DQAP also means the receive is incomplete, + * this time because a segment boundary was reached. Again, the + * DQAP is repeated. + * + * Note that gpr2 is used by the DQAP instruction to keep track of + * any 'residual' length, in case the instruction gets interrupted. + * Hence it gets zeroed before the instruction. + */ +static inline struct ap_queue_status +__ap_recv(ap_qid_t qid, unsigned long long *psmid, void *msg, size_t length) +{ + typedef struct { char _[length]; } msgblock; + register unsigned long reg0 asm("0") = qid | 0x80000000UL; + register struct ap_queue_status reg1 asm ("1"); + register unsigned long reg2 asm("2") = 0UL; + register unsigned long reg4 asm("4") = (unsigned long) msg; + register unsigned long reg5 asm("5") = (unsigned long) length; + register unsigned long reg6 asm("6") = 0UL; + register unsigned long reg7 asm("7") = 0UL; + + + asm volatile( + "0: .long 0xb2ae0064\n" + " brc 6,0b\n" + : "+d" (reg0), "=d" (reg1), "+d" (reg2), + "+d" (reg4), "+d" (reg5), "+d" (reg6), "+d" (reg7), + "=m" (*(msgblock *) msg) : : "cc" ); + *psmid = (((unsigned long long) reg6) << 32) + reg7; + return reg1; +} + +int ap_recv(ap_qid_t qid, unsigned long long *psmid, void *msg, size_t length) +{ + struct ap_queue_status status; + + status = __ap_recv(qid, psmid, msg, length); + switch (status.response_code) { + case AP_RESPONSE_NORMAL: + return 0; + case AP_RESPONSE_NO_PENDING_REPLY: + if (status.queue_empty) + return -ENOENT; + return -EBUSY; + default: + return -ENODEV; + } +} +EXPORT_SYMBOL(ap_recv); + +/** + * Check if an AP queue is available. The test is repeated for + * AP_MAX_RESET times. + * @qid: the ap queue number + * @queue_depth: pointer to queue depth value + * @device_type: pointer to device type value + */ +static int ap_query_queue(ap_qid_t qid, int *queue_depth, int *device_type) +{ + struct ap_queue_status status; + int t_depth, t_device_type, rc, i; + + rc = -EBUSY; + for (i = 0; i < AP_MAX_RESET; i++) { + status = ap_test_queue(qid, &t_depth, &t_device_type); + switch (status.response_code) { + case AP_RESPONSE_NORMAL: + *queue_depth = t_depth + 1; + *device_type = t_device_type; + rc = 0; + break; + case AP_RESPONSE_Q_NOT_AVAIL: + rc = -ENODEV; + break; + case AP_RESPONSE_RESET_IN_PROGRESS: + break; + case AP_RESPONSE_DECONFIGURED: + rc = -ENODEV; + break; + case AP_RESPONSE_CHECKSTOPPED: + rc = -ENODEV; + break; + case AP_RESPONSE_BUSY: + break; + default: + BUG(); + } + if (rc != -EBUSY) + break; + if (i < AP_MAX_RESET - 1) + udelay(5); + } + return rc; +} + +/** + * Reset an AP queue and wait for it to become available again. + * @qid: the ap queue number + */ +static int ap_init_queue(ap_qid_t qid) +{ + struct ap_queue_status status; + int rc, dummy, i; + + rc = -ENODEV; + status = ap_reset_queue(qid); + for (i = 0; i < AP_MAX_RESET; i++) { + switch (status.response_code) { + case AP_RESPONSE_NORMAL: + if (status.queue_empty) + rc = 0; + break; + case AP_RESPONSE_Q_NOT_AVAIL: + case AP_RESPONSE_DECONFIGURED: + case AP_RESPONSE_CHECKSTOPPED: + i = AP_MAX_RESET; /* return with -ENODEV */ + break; + case AP_RESPONSE_RESET_IN_PROGRESS: + case AP_RESPONSE_BUSY: + default: + break; + } + if (rc != -ENODEV) + break; + if (i < AP_MAX_RESET - 1) { + udelay(5); + status = ap_test_queue(qid, &dummy, &dummy); + } + } + return rc; +} + +/** + * AP device related attributes. + */ +static ssize_t ap_hwtype_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ap_device *ap_dev = to_ap_dev(dev); + return snprintf(buf, PAGE_SIZE, "%d\n", ap_dev->device_type); +} +static DEVICE_ATTR(hwtype, 0444, ap_hwtype_show, NULL); + +static ssize_t ap_depth_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct ap_device *ap_dev = to_ap_dev(dev); + return snprintf(buf, PAGE_SIZE, "%d\n", ap_dev->queue_depth); +} +static DEVICE_ATTR(depth, 0444, ap_depth_show, NULL); + +static ssize_t ap_request_count_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct ap_device *ap_dev = to_ap_dev(dev); + int rc; + + spin_lock_bh(&ap_dev->lock); + rc = snprintf(buf, PAGE_SIZE, "%d\n", ap_dev->total_request_count); + spin_unlock_bh(&ap_dev->lock); + return rc; +} + +static DEVICE_ATTR(request_count, 0444, ap_request_count_show, NULL); + +static ssize_t ap_modalias_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "ap:t%02X", to_ap_dev(dev)->device_type); +} + +static DEVICE_ATTR(modalias, 0444, ap_modalias_show, NULL); + +static struct attribute *ap_dev_attrs[] = { + &dev_attr_hwtype.attr, + &dev_attr_depth.attr, + &dev_attr_request_count.attr, + &dev_attr_modalias.attr, + NULL +}; +static struct attribute_group ap_dev_attr_group = { + .attrs = ap_dev_attrs +}; + +/** + * AP bus driver registration/unregistration. + */ +static int ap_bus_match(struct device *dev, struct device_driver *drv) +{ + struct ap_device *ap_dev = to_ap_dev(dev); + struct ap_driver *ap_drv = to_ap_drv(drv); + struct ap_device_id *id; + + /** + * Compare device type of the device with the list of + * supported types of the device_driver. + */ + for (id = ap_drv->ids; id->match_flags; id++) { + if ((id->match_flags & AP_DEVICE_ID_MATCH_DEVICE_TYPE) && + (id->dev_type != ap_dev->device_type)) + continue; + return 1; + } + return 0; +} + +/** + * uevent function for AP devices. It sets up a single environment + * variable DEV_TYPE which contains the hardware device type. + */ +static int ap_uevent (struct device *dev, char **envp, int num_envp, + char *buffer, int buffer_size) +{ + struct ap_device *ap_dev = to_ap_dev(dev); + int length; + + if (!ap_dev) + return -ENODEV; + + /* Set up DEV_TYPE environment variable. */ + envp[0] = buffer; + length = scnprintf(buffer, buffer_size, "DEV_TYPE=%04X", + ap_dev->device_type); + if (buffer_size - length <= 0) + return -ENOMEM; + envp[1] = 0; + return 0; +} + +static struct bus_type ap_bus_type = { + .name = "ap", + .match = &ap_bus_match, + .uevent = &ap_uevent, +}; + +static int ap_device_probe(struct device *dev) +{ + struct ap_device *ap_dev = to_ap_dev(dev); + struct ap_driver *ap_drv = to_ap_drv(dev->driver); + int rc; + + ap_dev->drv = ap_drv; + rc = ap_drv->probe ? ap_drv->probe(ap_dev) : -ENODEV; + if (rc) + ap_dev->unregistered = 1; + return rc; +} + +/** + * Flush all requests from the request/pending queue of an AP device. + * @ap_dev: pointer to the AP device. + */ +static inline void __ap_flush_queue(struct ap_device *ap_dev) +{ + struct ap_message *ap_msg, *next; + + list_for_each_entry_safe(ap_msg, next, &ap_dev->pendingq, list) { + list_del_init(&ap_msg->list); + ap_dev->pendingq_count--; + ap_dev->drv->receive(ap_dev, ap_msg, ERR_PTR(-ENODEV)); + } + list_for_each_entry_safe(ap_msg, next, &ap_dev->requestq, list) { + list_del_init(&ap_msg->list); + ap_dev->requestq_count--; + ap_dev->drv->receive(ap_dev, ap_msg, ERR_PTR(-ENODEV)); + } +} + +void ap_flush_queue(struct ap_device *ap_dev) +{ + spin_lock_bh(&ap_dev->lock); + __ap_flush_queue(ap_dev); + spin_unlock_bh(&ap_dev->lock); +} +EXPORT_SYMBOL(ap_flush_queue); + +static int ap_device_remove(struct device *dev) +{ + struct ap_device *ap_dev = to_ap_dev(dev); + struct ap_driver *ap_drv = ap_dev->drv; + + spin_lock_bh(&ap_dev->lock); + __ap_flush_queue(ap_dev); + /** + * set ->unregistered to 1 while holding the lock. This prevents + * new messages to be put on the queue from now on. + */ + ap_dev->unregistered = 1; + spin_unlock_bh(&ap_dev->lock); + if (ap_drv->remove) + ap_drv->remove(ap_dev); + return 0; +} + +int ap_driver_register(struct ap_driver *ap_drv, struct module *owner, + char *name) +{ + struct device_driver *drv = &ap_drv->driver; + + drv->bus = &ap_bus_type; + drv->probe = ap_device_probe; + drv->remove = ap_device_remove; + drv->owner = owner; + drv->name = name; + return driver_register(drv); +} +EXPORT_SYMBOL(ap_driver_register); + +void ap_driver_unregister(struct ap_driver *ap_drv) +{ + driver_unregister(&ap_drv->driver); +} +EXPORT_SYMBOL(ap_driver_unregister); + +/** + * AP bus attributes. + */ +static ssize_t ap_domain_show(struct bus_type *bus, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", ap_domain_index); +} + +static BUS_ATTR(ap_domain, 0444, ap_domain_show, NULL); + +static ssize_t ap_config_time_show(struct bus_type *bus, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", ap_config_time); +} + +static ssize_t ap_config_time_store(struct bus_type *bus, + const char *buf, size_t count) +{ + int time; + + if (sscanf(buf, "%d\n", &time) != 1 || time < 5 || time > 120) + return -EINVAL; + ap_config_time = time; + if (!timer_pending(&ap_config_timer) || + !mod_timer(&ap_config_timer, jiffies + ap_config_time * HZ)) { + ap_config_timer.expires = jiffies + ap_config_time * HZ; + add_timer(&ap_config_timer); + } + return count; +} + +static BUS_ATTR(config_time, 0644, ap_config_time_show, ap_config_time_store); + +static ssize_t ap_poll_thread_show(struct bus_type *bus, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", ap_poll_kthread ? 1 : 0); +} + +static ssize_t ap_poll_thread_store(struct bus_type *bus, + const char *buf, size_t count) +{ + int flag, rc; + + if (sscanf(buf, "%d\n", &flag) != 1) + return -EINVAL; + if (flag) { + rc = ap_poll_thread_start(); + if (rc) + return rc; + } + else + ap_poll_thread_stop(); + return count; +} + +static BUS_ATTR(poll_thread, 0644, ap_poll_thread_show, ap_poll_thread_store); + +static struct bus_attribute *const ap_bus_attrs[] = { + &bus_attr_ap_domain, + &bus_attr_config_time, + &bus_attr_poll_thread, + NULL +}; + +/** + * Pick one of the 16 ap domains. + */ +static inline int ap_select_domain(void) +{ + int queue_depth, device_type, count, max_count, best_domain; + int rc, i, j; + + /** + * We want to use a single domain. Either the one specified with + * the "domain=" parameter or the domain with the maximum number + * of devices. + */ + if (ap_domain_index >= 0 && ap_domain_index < AP_DOMAINS) + /* Domain has already been selected. */ + return 0; + best_domain = -1; + max_count = 0; + for (i = 0; i < AP_DOMAINS; i++) { + count = 0; + for (j = 0; j < AP_DEVICES; j++) { + ap_qid_t qid = AP_MKQID(j, i); + rc = ap_query_queue(qid, &queue_depth, &device_type); + if (rc) + continue; + count++; + } + if (count > max_count) { + max_count = count; + best_domain = i; + } + } + if (best_domain >= 0){ + ap_domain_index = best_domain; + return 0; + } + return -ENODEV; +} + +/** + * Find the device type if query queue returned a device type of 0. + * @ap_dev: pointer to the AP device. + */ +static int ap_probe_device_type(struct ap_device *ap_dev) +{ + static unsigned char msg[] = { + 0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x58,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x01,0x00,0x43,0x43,0x41,0x2d,0x41,0x50, + 0x50,0x4c,0x20,0x20,0x20,0x01,0x01,0x01, + 0x00,0x00,0x00,0x00,0x50,0x4b,0x00,0x00, + 0x00,0x00,0x01,0x1c,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x05,0xb8,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x70,0x00,0x41,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x54,0x32,0x01,0x00,0xa0,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0xb8,0x05,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x0a,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x00, + 0x49,0x43,0x53,0x46,0x20,0x20,0x20,0x20, + 0x50,0x4b,0x0a,0x00,0x50,0x4b,0x43,0x53, + 0x2d,0x31,0x2e,0x32,0x37,0x00,0x11,0x22, + 0x33,0x44,0x55,0x66,0x77,0x88,0x99,0x00, + 0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88, + 0x99,0x00,0x11,0x22,0x33,0x44,0x55,0x66, + 0x77,0x88,0x99,0x00,0x11,0x22,0x33,0x44, + 0x55,0x66,0x77,0x88,0x99,0x00,0x11,0x22, + 0x33,0x44,0x55,0x66,0x77,0x88,0x99,0x00, + 0x11,0x22,0x33,0x5d,0x00,0x5b,0x00,0x77, + 0x88,0x1e,0x00,0x00,0x57,0x00,0x00,0x00, + 0x00,0x04,0x00,0x00,0x4f,0x00,0x00,0x00, + 0x03,0x02,0x00,0x00,0x40,0x01,0x00,0x01, + 0xce,0x02,0x68,0x2d,0x5f,0xa9,0xde,0x0c, + 0xf6,0xd2,0x7b,0x58,0x4b,0xf9,0x28,0x68, + 0x3d,0xb4,0xf4,0xef,0x78,0xd5,0xbe,0x66, + 0x63,0x42,0xef,0xf8,0xfd,0xa4,0xf8,0xb0, + 0x8e,0x29,0xc2,0xc9,0x2e,0xd8,0x45,0xb8, + 0x53,0x8c,0x6f,0x4e,0x72,0x8f,0x6c,0x04, + 0x9c,0x88,0xfc,0x1e,0xc5,0x83,0x55,0x57, + 0xf7,0xdd,0xfd,0x4f,0x11,0x36,0x95,0x5d, + }; + struct ap_queue_status status; + unsigned long long psmid; + char *reply; + int rc, i; + + reply = (void *) get_zeroed_page(GFP_KERNEL); + if (!reply) { + rc = -ENOMEM; + goto out; + } + + status = __ap_send(ap_dev->qid, 0x0102030405060708ULL, + msg, sizeof(msg)); + if (status.response_code != AP_RESPONSE_NORMAL) { + rc = -ENODEV; + goto out_free; + } + + /* Wait for the test message to complete. */ + for (i = 0; i < 6; i++) { + mdelay(300); + status = __ap_recv(ap_dev->qid, &psmid, reply, 4096); + if (status.response_code == AP_RESPONSE_NORMAL && + psmid == 0x0102030405060708ULL) + break; + } + if (i < 6) { + /* Got an answer. */ + if (reply[0] == 0x00 && reply[1] == 0x86) + ap_dev->device_type = AP_DEVICE_TYPE_PCICC; + else + ap_dev->device_type = AP_DEVICE_TYPE_PCICA; + rc = 0; + } else + rc = -ENODEV; + +out_free: + free_page((unsigned long) reply); +out: + return rc; +} + +/** + * Scan the ap bus for new devices. + */ +static int __ap_scan_bus(struct device *dev, void *data) +{ + return to_ap_dev(dev)->qid == (ap_qid_t)(unsigned long) data; +} + +static void ap_device_release(struct device *dev) +{ + struct ap_device *ap_dev = to_ap_dev(dev); + + kfree(ap_dev); +} + +static void ap_scan_bus(void *data) +{ + struct ap_device *ap_dev; + struct device *dev; + ap_qid_t qid; + int queue_depth, device_type; + int rc, i; + + if (ap_select_domain() != 0) + return; + for (i = 0; i < AP_DEVICES; i++) { + qid = AP_MKQID(i, ap_domain_index); + dev = bus_find_device(&ap_bus_type, NULL, + (void *)(unsigned long)qid, + __ap_scan_bus); + if (dev) { + put_device(dev); + continue; + } + rc = ap_query_queue(qid, &queue_depth, &device_type); + if (rc) + continue; + rc = ap_init_queue(qid); + if (rc) + continue; + ap_dev = kzalloc(sizeof(*ap_dev), GFP_KERNEL); + if (!ap_dev) + break; + ap_dev->qid = qid; + ap_dev->queue_depth = queue_depth; + spin_lock_init(&ap_dev->lock); + INIT_LIST_HEAD(&ap_dev->pendingq); + INIT_LIST_HEAD(&ap_dev->requestq); + if (device_type == 0) + ap_probe_device_type(ap_dev); + else + ap_dev->device_type = device_type; + + ap_dev->device.bus = &ap_bus_type; + ap_dev->device.parent = ap_root_device; + snprintf(ap_dev->device.bus_id, BUS_ID_SIZE, "card%02x", + AP_QID_DEVICE(ap_dev->qid)); + ap_dev->device.release = ap_device_release; + rc = device_register(&ap_dev->device); + if (rc) { + kfree(ap_dev); + continue; + } + /* Add device attributes. */ + rc = sysfs_create_group(&ap_dev->device.kobj, + &ap_dev_attr_group); + if (rc) + device_unregister(&ap_dev->device); + } +} + +static void +ap_config_timeout(unsigned long ptr) +{ + queue_work(ap_work_queue, &ap_config_work); + ap_config_timer.expires = jiffies + ap_config_time * HZ; + add_timer(&ap_config_timer); +} + +/** + * Set up the timer to run the poll tasklet + */ +static inline void ap_schedule_poll_timer(void) +{ + if (timer_pending(&ap_poll_timer)) + return; + mod_timer(&ap_poll_timer, jiffies + AP_POLL_TIME); +} + +/** + * Receive pending reply messages from an AP device. + * @ap_dev: pointer to the AP device + * @flags: pointer to control flags, bit 2^0 is set if another poll is + * required, bit 2^1 is set if the poll timer needs to get armed + * Returns 0 if the device is still present, -ENODEV if not. + */ +static inline int ap_poll_read(struct ap_device *ap_dev, unsigned long *flags) +{ + struct ap_queue_status status; + struct ap_message *ap_msg; + + if (ap_dev->queue_count <= 0) + return 0; + status = __ap_recv(ap_dev->qid, &ap_dev->reply->psmid, + ap_dev->reply->message, ap_dev->reply->length); + switch (status.response_code) { + case AP_RESPONSE_NORMAL: + atomic_dec(&ap_poll_requests); + ap_dev->queue_count--; + list_for_each_entry(ap_msg, &ap_dev->pendingq, list) { + if (ap_msg->psmid != ap_dev->reply->psmid) + continue; + list_del_init(&ap_msg->list); + ap_dev->pendingq_count--; + ap_dev->drv->receive(ap_dev, ap_msg, ap_dev->reply); + break; + } + if (ap_dev->queue_count > 0) + *flags |= 1; + break; + case AP_RESPONSE_NO_PENDING_REPLY: + if (status.queue_empty) { + /* The card shouldn't forget requests but who knows. */ + ap_dev->queue_count = 0; + list_splice_init(&ap_dev->pendingq, &ap_dev->requestq); + ap_dev->requestq_count += ap_dev->pendingq_count; + ap_dev->pendingq_count = 0; + } else + *flags |= 2; + break; + default: + return -ENODEV; + } + return 0; +} + +/** + * Send messages from the request queue to an AP device. + * @ap_dev: pointer to the AP device + * @flags: pointer to control flags, bit 2^0 is set if another poll is + * required, bit 2^1 is set if the poll timer needs to get armed + * Returns 0 if the device is still present, -ENODEV if not. + */ +static inline int ap_poll_write(struct ap_device *ap_dev, unsigned long *flags) +{ + struct ap_queue_status status; + struct ap_message *ap_msg; + + if (ap_dev->requestq_count <= 0 || + ap_dev->queue_count >= ap_dev->queue_depth) + return 0; + /* Start the next request on the queue. */ + ap_msg = list_entry(ap_dev->requestq.next, struct ap_message, list); + status = __ap_send(ap_dev->qid, ap_msg->psmid, + ap_msg->message, ap_msg->length); + switch (status.response_code) { + case AP_RESPONSE_NORMAL: + atomic_inc(&ap_poll_requests); + ap_dev->queue_count++; + list_move_tail(&ap_msg->list, &ap_dev->pendingq); + ap_dev->requestq_count--; + ap_dev->pendingq_count++; + if (ap_dev->queue_count < ap_dev->queue_depth && + ap_dev->requestq_count > 0) + *flags |= 1; + *flags |= 2; + break; + case AP_RESPONSE_Q_FULL: + *flags |= 2; + break; + case AP_RESPONSE_MESSAGE_TOO_BIG: + return -EINVAL; + default: + return -ENODEV; + } + return 0; +} + +/** + * Poll AP device for pending replies and send new messages. If either + * ap_poll_read or ap_poll_write returns -ENODEV unregister the device. + * @ap_dev: pointer to the bus device + * @flags: pointer to control flags, bit 2^0 is set if another poll is + * required, bit 2^1 is set if the poll timer needs to get armed + * Returns 0. + */ +static inline int ap_poll_queue(struct ap_device *ap_dev, unsigned long *flags) +{ + int rc; + + rc = ap_poll_read(ap_dev, flags); + if (rc) + return rc; + return ap_poll_write(ap_dev, flags); +} + +/** + * Queue a message to a device. + * @ap_dev: pointer to the AP device + * @ap_msg: the message to be queued + */ +static int __ap_queue_message(struct ap_device *ap_dev, struct ap_message *ap_msg) +{ + struct ap_queue_status status; + + if (list_empty(&ap_dev->requestq) && + ap_dev->queue_count < ap_dev->queue_depth) { + status = __ap_send(ap_dev->qid, ap_msg->psmid, + ap_msg->message, ap_msg->length); + switch (status.response_code) { + case AP_RESPONSE_NORMAL: + list_add_tail(&ap_msg->list, &ap_dev->pendingq); + atomic_inc(&ap_poll_requests); + ap_dev->pendingq_count++; + ap_dev->queue_count++; + ap_dev->total_request_count++; + break; + case AP_RESPONSE_Q_FULL: + list_add_tail(&ap_msg->list, &ap_dev->requestq); + ap_dev->requestq_count++; + ap_dev->total_request_count++; + return -EBUSY; + case AP_RESPONSE_MESSAGE_TOO_BIG: + ap_dev->drv->receive(ap_dev, ap_msg, ERR_PTR(-EINVAL)); + return -EINVAL; + default: /* Device is gone. */ + ap_dev->drv->receive(ap_dev, ap_msg, ERR_PTR(-ENODEV)); + return -ENODEV; + } + } else { + list_add_tail(&ap_msg->list, &ap_dev->requestq); + ap_dev->requestq_count++; + ap_dev->total_request_count++; + return -EBUSY; + } + ap_schedule_poll_timer(); + return 0; +} + +void ap_queue_message(struct ap_device *ap_dev, struct ap_message *ap_msg) +{ + unsigned long flags; + int rc; + + spin_lock_bh(&ap_dev->lock); + if (!ap_dev->unregistered) { + /* Make room on the queue by polling for finished requests. */ + rc = ap_poll_queue(ap_dev, &flags); + if (!rc) + rc = __ap_queue_message(ap_dev, ap_msg); + if (!rc) + wake_up(&ap_poll_wait); + } else { + ap_dev->drv->receive(ap_dev, ap_msg, ERR_PTR(-ENODEV)); + rc = 0; + } + spin_unlock_bh(&ap_dev->lock); + if (rc == -ENODEV) + device_unregister(&ap_dev->device); +} +EXPORT_SYMBOL(ap_queue_message); + +/** + * Cancel a crypto request. This is done by removing the request + * from the devive pendingq or requestq queue. Note that the + * request stays on the AP queue. When it finishes the message + * reply will be discarded because the psmid can't be found. + * @ap_dev: AP device that has the message queued + * @ap_msg: the message that is to be removed + */ +void ap_cancel_message(struct ap_device *ap_dev, struct ap_message *ap_msg) +{ + struct ap_message *tmp; + + spin_lock_bh(&ap_dev->lock); + if (!list_empty(&ap_msg->list)) { + list_for_each_entry(tmp, &ap_dev->pendingq, list) + if (tmp->psmid == ap_msg->psmid) { + ap_dev->pendingq_count--; + goto found; + } + ap_dev->requestq_count--; + found: + list_del_init(&ap_msg->list); + } + spin_unlock_bh(&ap_dev->lock); +} +EXPORT_SYMBOL(ap_cancel_message); + +/** + * AP receive polling for finished AP requests + */ +static void ap_poll_timeout(unsigned long unused) +{ + tasklet_schedule(&ap_tasklet); +} + +/** + * Poll all AP devices on the bus in a round robin fashion. Continue + * polling until bit 2^0 of the control flags is not set. If bit 2^1 + * of the control flags has been set arm the poll timer. + */ +static int __ap_poll_all(struct device *dev, void *data) +{ + struct ap_device *ap_dev = to_ap_dev(dev); + int rc; + + spin_lock(&ap_dev->lock); + if (!ap_dev->unregistered) { + rc = ap_poll_queue(to_ap_dev(dev), (unsigned long *) data); + } else + rc = 0; + spin_unlock(&ap_dev->lock); + if (rc) + device_unregister(&ap_dev->device); + return 0; +} + +static void ap_poll_all(unsigned long dummy) +{ + unsigned long flags; + + do { + flags = 0; + bus_for_each_dev(&ap_bus_type, NULL, &flags, __ap_poll_all); + } while (flags & 1); + if (flags & 2) + ap_schedule_poll_timer(); +} + +/** + * AP bus poll thread. The purpose of this thread is to poll for + * finished requests in a loop if there is a "free" cpu - that is + * a cpu that doesn't have anything better to do. The polling stops + * as soon as there is another task or if all messages have been + * delivered. + */ +static int ap_poll_thread(void *data) +{ + DECLARE_WAITQUEUE(wait, current); + unsigned long flags; + int requests; + + set_user_nice(current, -20); + while (1) { + if (need_resched()) { + schedule(); + continue; + } + add_wait_queue(&ap_poll_wait, &wait); + set_current_state(TASK_INTERRUPTIBLE); + if (kthread_should_stop()) + break; + requests = atomic_read(&ap_poll_requests); + if (requests <= 0) + schedule(); + set_current_state(TASK_RUNNING); + remove_wait_queue(&ap_poll_wait, &wait); + + local_bh_disable(); + flags = 0; + bus_for_each_dev(&ap_bus_type, NULL, &flags, __ap_poll_all); + local_bh_enable(); + } + set_current_state(TASK_RUNNING); + remove_wait_queue(&ap_poll_wait, &wait); + return 0; +} + +static int ap_poll_thread_start(void) +{ + int rc; + + mutex_lock(&ap_poll_thread_mutex); + if (!ap_poll_kthread) { + ap_poll_kthread = kthread_run(ap_poll_thread, NULL, "appoll"); + rc = IS_ERR(ap_poll_kthread) ? PTR_ERR(ap_poll_kthread) : 0; + if (rc) + ap_poll_kthread = NULL; + } + else + rc = 0; + mutex_unlock(&ap_poll_thread_mutex); + return rc; +} + +static void ap_poll_thread_stop(void) +{ + mutex_lock(&ap_poll_thread_mutex); + if (ap_poll_kthread) { + kthread_stop(ap_poll_kthread); + ap_poll_kthread = NULL; + } + mutex_unlock(&ap_poll_thread_mutex); +} + +/** + * The module initialization code. + */ +int __init ap_module_init(void) +{ + int rc, i; + + if (ap_domain_index < -1 || ap_domain_index >= AP_DOMAINS) { + printk(KERN_WARNING "Invalid param: domain = %d. " + " Not loading.\n", ap_domain_index); + return -EINVAL; + } + if (ap_instructions_available() != 0) { + printk(KERN_WARNING "AP instructions not installed.\n"); + return -ENODEV; + } + + /* Create /sys/bus/ap. */ + rc = bus_register(&ap_bus_type); + if (rc) + goto out; + for (i = 0; ap_bus_attrs[i]; i++) { + rc = bus_create_file(&ap_bus_type, ap_bus_attrs[i]); + if (rc) + goto out_bus; + } + + /* Create /sys/devices/ap. */ + ap_root_device = s390_root_dev_register("ap"); + rc = IS_ERR(ap_root_device) ? PTR_ERR(ap_root_device) : 0; + if (rc) + goto out_bus; + + ap_work_queue = create_singlethread_workqueue("kapwork"); + if (!ap_work_queue) { + rc = -ENOMEM; + goto out_root; + } + + if (ap_select_domain() == 0) + ap_scan_bus(NULL); + + /* Setup the ap bus rescan timer. */ + init_timer(&ap_config_timer); + ap_config_timer.function = ap_config_timeout; + ap_config_timer.data = 0; + ap_config_timer.expires = jiffies + ap_config_time * HZ; + add_timer(&ap_config_timer); + + /* Start the low priority AP bus poll thread. */ + if (ap_thread_flag) { + rc = ap_poll_thread_start(); + if (rc) + goto out_work; + } + + return 0; + +out_work: + del_timer_sync(&ap_config_timer); + del_timer_sync(&ap_poll_timer); + destroy_workqueue(ap_work_queue); +out_root: + s390_root_dev_unregister(ap_root_device); +out_bus: + while (i--) + bus_remove_file(&ap_bus_type, ap_bus_attrs[i]); + bus_unregister(&ap_bus_type); +out: + return rc; +} + +static int __ap_match_all(struct device *dev, void *data) +{ + return 1; +} + +/** + * The module termination code + */ +void ap_module_exit(void) +{ + int i; + struct device *dev; + + ap_poll_thread_stop(); + del_timer_sync(&ap_config_timer); + del_timer_sync(&ap_poll_timer); + destroy_workqueue(ap_work_queue); + s390_root_dev_unregister(ap_root_device); + while ((dev = bus_find_device(&ap_bus_type, NULL, NULL, + __ap_match_all))) + { + device_unregister(dev); + put_device(dev); + } + for (i = 0; ap_bus_attrs[i]; i++) + bus_remove_file(&ap_bus_type, ap_bus_attrs[i]); + bus_unregister(&ap_bus_type); +} + +#ifndef CONFIG_ZCRYPT_MONOLITHIC +module_init(ap_module_init); +module_exit(ap_module_exit); +#endif diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h new file mode 100644 index 00000000000..83b69c01cd6 --- /dev/null +++ b/drivers/s390/crypto/ap_bus.h @@ -0,0 +1,158 @@ +/* + * linux/drivers/s390/crypto/ap_bus.h + * + * Copyright (C) 2006 IBM Corporation + * Author(s): Cornelia Huck + * Martin Schwidefsky + * Ralph Wuerthner + * + * Adjunct processor bus header file. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _AP_BUS_H_ +#define _AP_BUS_H_ + +#include +#include +#include + +#define AP_DEVICES 64 /* Number of AP devices. */ +#define AP_DOMAINS 16 /* Number of AP domains. */ +#define AP_MAX_RESET 90 /* Maximum number of resets. */ +#define AP_CONFIG_TIME 30 /* Time in seconds between AP bus rescans. */ +#define AP_POLL_TIME 1 /* Time in ticks between receive polls. */ + +extern int ap_domain_index; + +/** + * The ap_qid_t identifier of an ap queue. It contains a + * 6 bit device index and a 4 bit queue index (domain). + */ +typedef unsigned int ap_qid_t; + +#define AP_MKQID(_device,_queue) (((_device) & 63) << 8 | ((_queue) & 15)) +#define AP_QID_DEVICE(_qid) (((_qid) >> 8) & 63) +#define AP_QID_QUEUE(_qid) ((_qid) & 15) + +/** + * The ap queue status word is returned by all three AP functions + * (PQAP, NQAP and DQAP). There's a set of flags in the first + * byte, followed by a 1 byte response code. + */ +struct ap_queue_status { + unsigned int queue_empty : 1; + unsigned int replies_waiting : 1; + unsigned int queue_full : 1; + unsigned int pad1 : 5; + unsigned int response_code : 8; + unsigned int pad2 : 16; +}; + +#define AP_RESPONSE_NORMAL 0x00 +#define AP_RESPONSE_Q_NOT_AVAIL 0x01 +#define AP_RESPONSE_RESET_IN_PROGRESS 0x02 +#define AP_RESPONSE_DECONFIGURED 0x03 +#define AP_RESPONSE_CHECKSTOPPED 0x04 +#define AP_RESPONSE_BUSY 0x05 +#define AP_RESPONSE_Q_FULL 0x10 +#define AP_RESPONSE_NO_PENDING_REPLY 0x10 +#define AP_RESPONSE_INDEX_TOO_BIG 0x11 +#define AP_RESPONSE_NO_FIRST_PART 0x13 +#define AP_RESPONSE_MESSAGE_TOO_BIG 0x15 + +/** + * Known device types + */ +#define AP_DEVICE_TYPE_PCICC 3 +#define AP_DEVICE_TYPE_PCICA 4 +#define AP_DEVICE_TYPE_PCIXCC 5 +#define AP_DEVICE_TYPE_CEX2A 6 +#define AP_DEVICE_TYPE_CEX2C 7 + +struct ap_device; +struct ap_message; + +struct ap_driver { + struct device_driver driver; + struct ap_device_id *ids; + + int (*probe)(struct ap_device *); + void (*remove)(struct ap_device *); + /* receive is called from tasklet context */ + void (*receive)(struct ap_device *, struct ap_message *, + struct ap_message *); +}; + +#define to_ap_drv(x) container_of((x), struct ap_driver, driver) + +int ap_driver_register(struct ap_driver *, struct module *, char *); +void ap_driver_unregister(struct ap_driver *); + +struct ap_device { + struct device device; + struct ap_driver *drv; /* Pointer to AP device driver. */ + spinlock_t lock; /* Per device lock. */ + + ap_qid_t qid; /* AP queue id. */ + int queue_depth; /* AP queue depth.*/ + int device_type; /* AP device type. */ + int unregistered; /* marks AP device as unregistered */ + + int queue_count; /* # messages currently on AP queue. */ + + struct list_head pendingq; /* List of message sent to AP queue. */ + int pendingq_count; /* # requests on pendingq list. */ + struct list_head requestq; /* List of message yet to be sent. */ + int requestq_count; /* # requests on requestq list. */ + int total_request_count; /* # requests ever for this AP device. */ + + struct ap_message *reply; /* Per device reply message. */ + + void *private; /* ap driver private pointer. */ +}; + +#define to_ap_dev(x) container_of((x), struct ap_device, device) + +struct ap_message { + struct list_head list; /* Request queueing. */ + unsigned long long psmid; /* Message id. */ + void *message; /* Pointer to message buffer. */ + size_t length; /* Message length. */ + + void *private; /* ap driver private pointer. */ +}; + +#define AP_DEVICE(dt) \ + .dev_type=(dt), \ + .match_flags=AP_DEVICE_ID_MATCH_DEVICE_TYPE, + +/** + * Note: don't use ap_send/ap_recv after using ap_queue_message + * for the first time. Otherwise the ap message queue will get + * confused. + */ +int ap_send(ap_qid_t, unsigned long long, void *, size_t); +int ap_recv(ap_qid_t, unsigned long long *, void *, size_t); + +void ap_queue_message(struct ap_device *ap_dev, struct ap_message *ap_msg); +void ap_cancel_message(struct ap_device *ap_dev, struct ap_message *ap_msg); +void ap_flush_queue(struct ap_device *ap_dev); + +int ap_module_init(void); +void ap_module_exit(void); + +#endif /* _AP_BUS_H_ */ diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index f6977708585..f7ca0b09075 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -148,6 +148,17 @@ struct ccw_device_id { #define CCW_DEVICE_ID_MATCH_DEVICE_TYPE 0x04 #define CCW_DEVICE_ID_MATCH_DEVICE_MODEL 0x08 +/* s390 AP bus devices */ +struct ap_device_id { + __u16 match_flags; /* which fields to match against */ + __u8 dev_type; /* device type */ + __u8 pad1; + __u32 pad2; + kernel_ulong_t driver_info; +}; + +#define AP_DEVICE_ID_MATCH_DEVICE_TYPE 0x01 + #define PNP_ID_LEN 8 #define PNP_MAX_DEVICES 8 diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index e2de650d3db..de76da80443 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -265,6 +265,14 @@ static int do_ccw_entry(const char *filename, return 1; } +/* looks like: "ap:tN" */ +static int do_ap_entry(const char *filename, + struct ap_device_id *id, char *alias) +{ + sprintf(alias, "ap:t%02X", id->dev_type); + return 1; +} + /* Looks like: "serio:tyNprNidNexN" */ static int do_serio_entry(const char *filename, struct serio_device_id *id, char *alias) @@ -503,6 +511,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info, do_table(symval, sym->st_size, sizeof(struct ccw_device_id), "ccw", do_ccw_entry, mod); + else if (sym_is(symname, "__mod_ap_device_table")) + do_table(symval, sym->st_size, + sizeof(struct ap_device_id), "ap", + do_ap_entry, mod); else if (sym_is(symname, "__mod_serio_device_table")) do_table(symval, sym->st_size, sizeof(struct serio_device_id), "serio", -- cgit v1.2.3-70-g09d2 From 2dbc2418bac32a18a372ae9aec386f0fe9174389 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:58:27 +0200 Subject: [S390] zcrypt user space interface. The user space interface of the zcrypt device driver implements the old user space interface as defined by the old z90crypt driver. Everything is there, the /dev/z90crypt misc character device, all the lovely ioctls and the /proc file. Even writing to the z90crypt proc file to configure the crypto device still works. It stands to reason to remove the proc write function someday since a much cleaner configuration via the sysfs is now available. The ap bus device drivers register crypto cards to the zcrypt user space interface. The request router of the user space interface picks one of the registered cards based on the predicted latency for the request and calls the driver via a callback found in the zcrypt_ops of the device. The request router only knows which operations the card can do and the minimum / maximum number of bits a request can have. Signed-off-by: Cornelia Huck Signed-off-by: Ralph Wuerthner Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/zcrypt_api.c | 981 +++++++++++++++++++++++++++++++++++++++ drivers/s390/crypto/zcrypt_api.h | 140 ++++++ include/asm-s390/zcrypt.h | 207 +++++++++ 3 files changed, 1328 insertions(+) create mode 100644 drivers/s390/crypto/zcrypt_api.c create mode 100644 drivers/s390/crypto/zcrypt_api.h create mode 100644 include/asm-s390/zcrypt.h (limited to 'drivers') diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c new file mode 100644 index 00000000000..b3fe003b3d2 --- /dev/null +++ b/drivers/s390/crypto/zcrypt_api.c @@ -0,0 +1,981 @@ +/* + * linux/drivers/s390/crypto/zcrypt_api.c + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * Cornelia Huck + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * Ralph Wuerthner + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "zcrypt_api.h" + +/** + * Module description. + */ +MODULE_AUTHOR("IBM Corporation"); +MODULE_DESCRIPTION("Cryptographic Coprocessor interface, " + "Copyright 2001, 2006 IBM Corporation"); +MODULE_LICENSE("GPL"); + +static DEFINE_SPINLOCK(zcrypt_device_lock); +static LIST_HEAD(zcrypt_device_list); +static int zcrypt_device_count = 0; +static atomic_t zcrypt_open_count = ATOMIC_INIT(0); + +/** + * Device attributes common for all crypto devices. + */ +static ssize_t zcrypt_type_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct zcrypt_device *zdev = to_ap_dev(dev)->private; + return snprintf(buf, PAGE_SIZE, "%s\n", zdev->type_string); +} + +static DEVICE_ATTR(type, 0444, zcrypt_type_show, NULL); + +static ssize_t zcrypt_online_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct zcrypt_device *zdev = to_ap_dev(dev)->private; + return snprintf(buf, PAGE_SIZE, "%d\n", zdev->online); +} + +static ssize_t zcrypt_online_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct zcrypt_device *zdev = to_ap_dev(dev)->private; + int online; + + if (sscanf(buf, "%d\n", &online) != 1 || online < 0 || online > 1) + return -EINVAL; + zdev->online = online; + if (!online) + ap_flush_queue(zdev->ap_dev); + return count; +} + +static DEVICE_ATTR(online, 0644, zcrypt_online_show, zcrypt_online_store); + +static struct attribute * zcrypt_device_attrs[] = { + &dev_attr_type.attr, + &dev_attr_online.attr, + NULL, +}; + +static struct attribute_group zcrypt_device_attr_group = { + .attrs = zcrypt_device_attrs, +}; + +/** + * Move the device towards the head of the device list. + * Need to be called while holding the zcrypt device list lock. + * Note: cards with speed_rating of 0 are kept at the end of the list. + */ +static void __zcrypt_increase_preference(struct zcrypt_device *zdev) +{ + struct zcrypt_device *tmp; + struct list_head *l; + + if (zdev->speed_rating == 0) + return; + for (l = zdev->list.prev; l != &zcrypt_device_list; l = l->prev) { + tmp = list_entry(l, struct zcrypt_device, list); + if ((tmp->request_count + 1) * tmp->speed_rating <= + (zdev->request_count + 1) * zdev->speed_rating && + tmp->speed_rating != 0) + break; + } + if (l == zdev->list.prev) + return; + /* Move zdev behind l */ + list_del(&zdev->list); + list_add(&zdev->list, l); +} + +/** + * Move the device towards the tail of the device list. + * Need to be called while holding the zcrypt device list lock. + * Note: cards with speed_rating of 0 are kept at the end of the list. + */ +static void __zcrypt_decrease_preference(struct zcrypt_device *zdev) +{ + struct zcrypt_device *tmp; + struct list_head *l; + + if (zdev->speed_rating == 0) + return; + for (l = zdev->list.next; l != &zcrypt_device_list; l = l->next) { + tmp = list_entry(l, struct zcrypt_device, list); + if ((tmp->request_count + 1) * tmp->speed_rating > + (zdev->request_count + 1) * zdev->speed_rating || + tmp->speed_rating == 0) + break; + } + if (l == zdev->list.next) + return; + /* Move zdev before l */ + list_del(&zdev->list); + list_add_tail(&zdev->list, l); +} + +static void zcrypt_device_release(struct kref *kref) +{ + struct zcrypt_device *zdev = + container_of(kref, struct zcrypt_device, refcount); + zcrypt_device_free(zdev); +} + +void zcrypt_device_get(struct zcrypt_device *zdev) +{ + kref_get(&zdev->refcount); +} +EXPORT_SYMBOL(zcrypt_device_get); + +int zcrypt_device_put(struct zcrypt_device *zdev) +{ + return kref_put(&zdev->refcount, zcrypt_device_release); +} +EXPORT_SYMBOL(zcrypt_device_put); + +struct zcrypt_device *zcrypt_device_alloc(size_t max_response_size) +{ + struct zcrypt_device *zdev; + + zdev = kzalloc(sizeof(struct zcrypt_device), GFP_KERNEL); + if (!zdev) + return NULL; + zdev->reply.message = kmalloc(max_response_size, GFP_KERNEL); + if (!zdev->reply.message) + goto out_free; + zdev->reply.length = max_response_size; + spin_lock_init(&zdev->lock); + INIT_LIST_HEAD(&zdev->list); + return zdev; + +out_free: + kfree(zdev); + return NULL; +} +EXPORT_SYMBOL(zcrypt_device_alloc); + +void zcrypt_device_free(struct zcrypt_device *zdev) +{ + kfree(zdev->reply.message); + kfree(zdev); +} +EXPORT_SYMBOL(zcrypt_device_free); + +/** + * Register a crypto device. + */ +int zcrypt_device_register(struct zcrypt_device *zdev) +{ + int rc; + + rc = sysfs_create_group(&zdev->ap_dev->device.kobj, + &zcrypt_device_attr_group); + if (rc) + goto out; + get_device(&zdev->ap_dev->device); + kref_init(&zdev->refcount); + spin_lock_bh(&zcrypt_device_lock); + zdev->online = 1; /* New devices are online by default. */ + list_add_tail(&zdev->list, &zcrypt_device_list); + __zcrypt_increase_preference(zdev); + zcrypt_device_count++; + spin_unlock_bh(&zcrypt_device_lock); +out: + return rc; +} +EXPORT_SYMBOL(zcrypt_device_register); + +/** + * Unregister a crypto device. + */ +void zcrypt_device_unregister(struct zcrypt_device *zdev) +{ + spin_lock_bh(&zcrypt_device_lock); + zcrypt_device_count--; + list_del_init(&zdev->list); + spin_unlock_bh(&zcrypt_device_lock); + sysfs_remove_group(&zdev->ap_dev->device.kobj, + &zcrypt_device_attr_group); + put_device(&zdev->ap_dev->device); + zcrypt_device_put(zdev); +} +EXPORT_SYMBOL(zcrypt_device_unregister); + +/** + * zcrypt_read is not be supported beyond zcrypt 1.3.1 + */ +static ssize_t zcrypt_read(struct file *filp, char __user *buf, + size_t count, loff_t *f_pos) +{ + return -EPERM; +} + +/** + * Write is is not allowed + */ +static ssize_t zcrypt_write(struct file *filp, const char __user *buf, + size_t count, loff_t *f_pos) +{ + return -EPERM; +} + +/** + * Device open/close functions to count number of users. + */ +static int zcrypt_open(struct inode *inode, struct file *filp) +{ + atomic_inc(&zcrypt_open_count); + return 0; +} + +static int zcrypt_release(struct inode *inode, struct file *filp) +{ + atomic_dec(&zcrypt_open_count); + return 0; +} + +/** + * zcrypt ioctls. + */ +static long zcrypt_rsa_modexpo(struct ica_rsa_modexpo *mex) +{ + struct zcrypt_device *zdev; + int rc; + + if (mex->outputdatalength < mex->inputdatalength) + return -EINVAL; + /** + * As long as outputdatalength is big enough, we can set the + * outputdatalength equal to the inputdatalength, since that is the + * number of bytes we will copy in any case + */ + mex->outputdatalength = mex->inputdatalength; + + spin_lock_bh(&zcrypt_device_lock); + list_for_each_entry(zdev, &zcrypt_device_list, list) { + if (!zdev->online || + !zdev->ops->rsa_modexpo || + zdev->min_mod_size > mex->inputdatalength || + zdev->max_mod_size < mex->inputdatalength) + continue; + zcrypt_device_get(zdev); + get_device(&zdev->ap_dev->device); + zdev->request_count++; + __zcrypt_decrease_preference(zdev); + spin_unlock_bh(&zcrypt_device_lock); + if (try_module_get(zdev->ap_dev->drv->driver.owner)) { + rc = zdev->ops->rsa_modexpo(zdev, mex); + module_put(zdev->ap_dev->drv->driver.owner); + } + else + rc = -EAGAIN; + spin_lock_bh(&zcrypt_device_lock); + zdev->request_count--; + __zcrypt_increase_preference(zdev); + put_device(&zdev->ap_dev->device); + zcrypt_device_put(zdev); + spin_unlock_bh(&zcrypt_device_lock); + return rc; + } + spin_unlock_bh(&zcrypt_device_lock); + return -ENODEV; +} + +static long zcrypt_rsa_crt(struct ica_rsa_modexpo_crt *crt) +{ + struct zcrypt_device *zdev; + unsigned long long z1, z2, z3; + int rc, copied; + + if (crt->outputdatalength < crt->inputdatalength || + (crt->inputdatalength & 1)) + return -EINVAL; + /** + * As long as outputdatalength is big enough, we can set the + * outputdatalength equal to the inputdatalength, since that is the + * number of bytes we will copy in any case + */ + crt->outputdatalength = crt->inputdatalength; + + copied = 0; + restart: + spin_lock_bh(&zcrypt_device_lock); + list_for_each_entry(zdev, &zcrypt_device_list, list) { + if (!zdev->online || + !zdev->ops->rsa_modexpo_crt || + zdev->min_mod_size > crt->inputdatalength || + zdev->max_mod_size < crt->inputdatalength) + continue; + if (zdev->short_crt && crt->inputdatalength > 240) { + /** + * Check inputdata for leading zeros for cards + * that can't handle np_prime, bp_key, or + * u_mult_inv > 128 bytes. + */ + if (copied == 0) { + int len; + spin_unlock_bh(&zcrypt_device_lock); + /* len is max 256 / 2 - 120 = 8 */ + len = crt->inputdatalength / 2 - 120; + z1 = z2 = z3 = 0; + if (copy_from_user(&z1, crt->np_prime, len) || + copy_from_user(&z2, crt->bp_key, len) || + copy_from_user(&z3, crt->u_mult_inv, len)) + return -EFAULT; + copied = 1; + /** + * We have to restart device lookup - + * the device list may have changed by now. + */ + goto restart; + } + if (z1 != 0ULL || z2 != 0ULL || z3 != 0ULL) + /* The device can't handle this request. */ + continue; + } + zcrypt_device_get(zdev); + get_device(&zdev->ap_dev->device); + zdev->request_count++; + __zcrypt_decrease_preference(zdev); + spin_unlock_bh(&zcrypt_device_lock); + if (try_module_get(zdev->ap_dev->drv->driver.owner)) { + rc = zdev->ops->rsa_modexpo_crt(zdev, crt); + module_put(zdev->ap_dev->drv->driver.owner); + } + else + rc = -EAGAIN; + spin_lock_bh(&zcrypt_device_lock); + zdev->request_count--; + __zcrypt_increase_preference(zdev); + put_device(&zdev->ap_dev->device); + zcrypt_device_put(zdev); + spin_unlock_bh(&zcrypt_device_lock); + return rc; + } + spin_unlock_bh(&zcrypt_device_lock); + return -ENODEV; +} + +static void zcrypt_status_mask(char status[AP_DEVICES]) +{ + struct zcrypt_device *zdev; + + memset(status, 0, sizeof(char) * AP_DEVICES); + spin_lock_bh(&zcrypt_device_lock); + list_for_each_entry(zdev, &zcrypt_device_list, list) + status[AP_QID_DEVICE(zdev->ap_dev->qid)] = + zdev->online ? zdev->user_space_type : 0x0d; + spin_unlock_bh(&zcrypt_device_lock); +} + +static void zcrypt_qdepth_mask(char qdepth[AP_DEVICES]) +{ + struct zcrypt_device *zdev; + + memset(qdepth, 0, sizeof(char) * AP_DEVICES); + spin_lock_bh(&zcrypt_device_lock); + list_for_each_entry(zdev, &zcrypt_device_list, list) { + spin_lock(&zdev->ap_dev->lock); + qdepth[AP_QID_DEVICE(zdev->ap_dev->qid)] = + zdev->ap_dev->pendingq_count + + zdev->ap_dev->requestq_count; + spin_unlock(&zdev->ap_dev->lock); + } + spin_unlock_bh(&zcrypt_device_lock); +} + +static void zcrypt_perdev_reqcnt(int reqcnt[AP_DEVICES]) +{ + struct zcrypt_device *zdev; + + memset(reqcnt, 0, sizeof(int) * AP_DEVICES); + spin_lock_bh(&zcrypt_device_lock); + list_for_each_entry(zdev, &zcrypt_device_list, list) { + spin_lock(&zdev->ap_dev->lock); + reqcnt[AP_QID_DEVICE(zdev->ap_dev->qid)] = + zdev->ap_dev->total_request_count; + spin_unlock(&zdev->ap_dev->lock); + } + spin_unlock_bh(&zcrypt_device_lock); +} + +static int zcrypt_pendingq_count(void) +{ + struct zcrypt_device *zdev; + int pendingq_count = 0; + + spin_lock_bh(&zcrypt_device_lock); + list_for_each_entry(zdev, &zcrypt_device_list, list) { + spin_lock(&zdev->ap_dev->lock); + pendingq_count += zdev->ap_dev->pendingq_count; + spin_unlock(&zdev->ap_dev->lock); + } + spin_unlock_bh(&zcrypt_device_lock); + return pendingq_count; +} + +static int zcrypt_requestq_count(void) +{ + struct zcrypt_device *zdev; + int requestq_count = 0; + + spin_lock_bh(&zcrypt_device_lock); + list_for_each_entry(zdev, &zcrypt_device_list, list) { + spin_lock(&zdev->ap_dev->lock); + requestq_count += zdev->ap_dev->requestq_count; + spin_unlock(&zdev->ap_dev->lock); + } + spin_unlock_bh(&zcrypt_device_lock); + return requestq_count; +} + +static int zcrypt_count_type(int type) +{ + struct zcrypt_device *zdev; + int device_count = 0; + + spin_lock_bh(&zcrypt_device_lock); + list_for_each_entry(zdev, &zcrypt_device_list, list) + if (zdev->user_space_type == type) + device_count++; + spin_unlock_bh(&zcrypt_device_lock); + return device_count; +} + +/** + * Old, deprecated combi status call. + */ +static long zcrypt_ica_status(struct file *filp, unsigned long arg) +{ + struct ica_z90_status *pstat; + int ret; + + pstat = kzalloc(sizeof(*pstat), GFP_KERNEL); + if (!pstat) + return -ENOMEM; + pstat->totalcount = zcrypt_device_count; + pstat->leedslitecount = zcrypt_count_type(ZCRYPT_PCICA); + pstat->leeds2count = zcrypt_count_type(ZCRYPT_PCICC); + pstat->requestqWaitCount = zcrypt_requestq_count(); + pstat->pendingqWaitCount = zcrypt_pendingq_count(); + pstat->totalOpenCount = atomic_read(&zcrypt_open_count); + pstat->cryptoDomain = ap_domain_index; + zcrypt_status_mask(pstat->status); + zcrypt_qdepth_mask(pstat->qdepth); + ret = 0; + if (copy_to_user((void __user *) arg, pstat, sizeof(*pstat))) + ret = -EFAULT; + kfree(pstat); + return ret; +} + +static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg) +{ + int rc; + + switch (cmd) { + case ICARSAMODEXPO: { + struct ica_rsa_modexpo __user *umex = (void __user *) arg; + struct ica_rsa_modexpo mex; + if (copy_from_user(&mex, umex, sizeof(mex))) + return -EFAULT; + do { + rc = zcrypt_rsa_modexpo(&mex); + } while (rc == -EAGAIN); + if (rc) + return rc; + return put_user(mex.outputdatalength, &umex->outputdatalength); + } + case ICARSACRT: { + struct ica_rsa_modexpo_crt __user *ucrt = (void __user *) arg; + struct ica_rsa_modexpo_crt crt; + if (copy_from_user(&crt, ucrt, sizeof(crt))) + return -EFAULT; + do { + rc = zcrypt_rsa_crt(&crt); + } while (rc == -EAGAIN); + if (rc) + return rc; + return put_user(crt.outputdatalength, &ucrt->outputdatalength); + } + case Z90STAT_STATUS_MASK: { + char status[AP_DEVICES]; + zcrypt_status_mask(status); + if (copy_to_user((char __user *) arg, status, + sizeof(char) * AP_DEVICES)) + return -EFAULT; + return 0; + } + case Z90STAT_QDEPTH_MASK: { + char qdepth[AP_DEVICES]; + zcrypt_qdepth_mask(qdepth); + if (copy_to_user((char __user *) arg, qdepth, + sizeof(char) * AP_DEVICES)) + return -EFAULT; + return 0; + } + case Z90STAT_PERDEV_REQCNT: { + int reqcnt[AP_DEVICES]; + zcrypt_perdev_reqcnt(reqcnt); + if (copy_to_user((int __user *) arg, reqcnt, + sizeof(int) * AP_DEVICES)) + return -EFAULT; + return 0; + } + case Z90STAT_REQUESTQ_COUNT: + return put_user(zcrypt_requestq_count(), (int __user *) arg); + case Z90STAT_PENDINGQ_COUNT: + return put_user(zcrypt_pendingq_count(), (int __user *) arg); + case Z90STAT_TOTALOPEN_COUNT: + return put_user(atomic_read(&zcrypt_open_count), + (int __user *) arg); + case Z90STAT_DOMAIN_INDEX: + return put_user(ap_domain_index, (int __user *) arg); + /** + * Deprecated ioctls. Don't add another device count ioctl, + * you can count them yourself in the user space with the + * output of the Z90STAT_STATUS_MASK ioctl. + */ + case ICAZ90STATUS: + return zcrypt_ica_status(filp, arg); + case Z90STAT_TOTALCOUNT: + return put_user(zcrypt_device_count, (int __user *) arg); + case Z90STAT_PCICACOUNT: + return put_user(zcrypt_count_type(ZCRYPT_PCICA), + (int __user *) arg); + case Z90STAT_PCICCCOUNT: + return put_user(zcrypt_count_type(ZCRYPT_PCICC), + (int __user *) arg); + case Z90STAT_PCIXCCMCL2COUNT: + return put_user(zcrypt_count_type(ZCRYPT_PCIXCC_MCL2), + (int __user *) arg); + case Z90STAT_PCIXCCMCL3COUNT: + return put_user(zcrypt_count_type(ZCRYPT_PCIXCC_MCL3), + (int __user *) arg); + case Z90STAT_PCIXCCCOUNT: + return put_user(zcrypt_count_type(ZCRYPT_PCIXCC_MCL2) + + zcrypt_count_type(ZCRYPT_PCIXCC_MCL3), + (int __user *) arg); + case Z90STAT_CEX2CCOUNT: + return put_user(zcrypt_count_type(ZCRYPT_CEX2C), + (int __user *) arg); + case Z90STAT_CEX2ACOUNT: + return put_user(zcrypt_count_type(ZCRYPT_CEX2A), + (int __user *) arg); + default: + /* unknown ioctl number */ + return -ENOIOCTLCMD; + } +} + +#ifdef CONFIG_COMPAT +/** + * ioctl32 conversion routines + */ +struct compat_ica_rsa_modexpo { + compat_uptr_t inputdata; + unsigned int inputdatalength; + compat_uptr_t outputdata; + unsigned int outputdatalength; + compat_uptr_t b_key; + compat_uptr_t n_modulus; +}; + +static long trans_modexpo32(struct file *filp, unsigned int cmd, + unsigned long arg) +{ + struct compat_ica_rsa_modexpo __user *umex32 = compat_ptr(arg); + struct compat_ica_rsa_modexpo mex32; + struct ica_rsa_modexpo mex64; + long rc; + + if (copy_from_user(&mex32, umex32, sizeof(mex32))) + return -EFAULT; + mex64.inputdata = compat_ptr(mex32.inputdata); + mex64.inputdatalength = mex32.inputdatalength; + mex64.outputdata = compat_ptr(mex32.outputdata); + mex64.outputdatalength = mex32.outputdatalength; + mex64.b_key = compat_ptr(mex32.b_key); + mex64.n_modulus = compat_ptr(mex32.n_modulus); + do { + rc = zcrypt_rsa_modexpo(&mex64); + } while (rc == -EAGAIN); + if (!rc) + rc = put_user(mex64.outputdatalength, + &umex32->outputdatalength); + return rc; +} + +struct compat_ica_rsa_modexpo_crt { + compat_uptr_t inputdata; + unsigned int inputdatalength; + compat_uptr_t outputdata; + unsigned int outputdatalength; + compat_uptr_t bp_key; + compat_uptr_t bq_key; + compat_uptr_t np_prime; + compat_uptr_t nq_prime; + compat_uptr_t u_mult_inv; +}; + +static long trans_modexpo_crt32(struct file *filp, unsigned int cmd, + unsigned long arg) +{ + struct compat_ica_rsa_modexpo_crt __user *ucrt32 = compat_ptr(arg); + struct compat_ica_rsa_modexpo_crt crt32; + struct ica_rsa_modexpo_crt crt64; + long rc; + + if (copy_from_user(&crt32, ucrt32, sizeof(crt32))) + return -EFAULT; + crt64.inputdata = compat_ptr(crt32.inputdata); + crt64.inputdatalength = crt32.inputdatalength; + crt64.outputdata= compat_ptr(crt32.outputdata); + crt64.outputdatalength = crt32.outputdatalength; + crt64.bp_key = compat_ptr(crt32.bp_key); + crt64.bq_key = compat_ptr(crt32.bq_key); + crt64.np_prime = compat_ptr(crt32.np_prime); + crt64.nq_prime = compat_ptr(crt32.nq_prime); + crt64.u_mult_inv = compat_ptr(crt32.u_mult_inv); + do { + rc = zcrypt_rsa_crt(&crt64); + } while (rc == -EAGAIN); + if (!rc) + rc = put_user(crt64.outputdatalength, + &ucrt32->outputdatalength); + return rc; +} + +long zcrypt_compat_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg) +{ + if (cmd == ICARSAMODEXPO) + return trans_modexpo32(filp, cmd, arg); + if (cmd == ICARSACRT) + return trans_modexpo_crt32(filp, cmd, arg); + return zcrypt_unlocked_ioctl(filp, cmd, arg); +} +#endif + +/** + * Misc device file operations. + */ +static struct file_operations zcrypt_fops = { + .owner = THIS_MODULE, + .read = zcrypt_read, + .write = zcrypt_write, + .unlocked_ioctl = zcrypt_unlocked_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = zcrypt_compat_ioctl, +#endif + .open = zcrypt_open, + .release = zcrypt_release +}; + +/** + * Misc device. + */ +static struct miscdevice zcrypt_misc_device = { + .minor = MISC_DYNAMIC_MINOR, + .name = "z90crypt", + .fops = &zcrypt_fops, +}; + +/** + * Deprecated /proc entry support. + */ +static struct proc_dir_entry *zcrypt_entry; + +static inline int sprintcl(unsigned char *outaddr, unsigned char *addr, + unsigned int len) +{ + int hl, i; + + hl = 0; + for (i = 0; i < len; i++) + hl += sprintf(outaddr+hl, "%01x", (unsigned int) addr[i]); + hl += sprintf(outaddr+hl, " "); + return hl; +} + +static inline int sprintrw(unsigned char *outaddr, unsigned char *addr, + unsigned int len) +{ + int hl, inl, c, cx; + + hl = sprintf(outaddr, " "); + inl = 0; + for (c = 0; c < (len / 16); c++) { + hl += sprintcl(outaddr+hl, addr+inl, 16); + inl += 16; + } + cx = len%16; + if (cx) { + hl += sprintcl(outaddr+hl, addr+inl, cx); + inl += cx; + } + hl += sprintf(outaddr+hl, "\n"); + return hl; +} + +static inline int sprinthx(unsigned char *title, unsigned char *outaddr, + unsigned char *addr, unsigned int len) +{ + int hl, inl, r, rx; + + hl = sprintf(outaddr, "\n%s\n", title); + inl = 0; + for (r = 0; r < (len / 64); r++) { + hl += sprintrw(outaddr+hl, addr+inl, 64); + inl += 64; + } + rx = len % 64; + if (rx) { + hl += sprintrw(outaddr+hl, addr+inl, rx); + inl += rx; + } + hl += sprintf(outaddr+hl, "\n"); + return hl; +} + +static inline int sprinthx4(unsigned char *title, unsigned char *outaddr, + unsigned int *array, unsigned int len) +{ + int hl, r; + + hl = sprintf(outaddr, "\n%s\n", title); + for (r = 0; r < len; r++) { + if ((r % 8) == 0) + hl += sprintf(outaddr+hl, " "); + hl += sprintf(outaddr+hl, "%08X ", array[r]); + if ((r % 8) == 7) + hl += sprintf(outaddr+hl, "\n"); + } + hl += sprintf(outaddr+hl, "\n"); + return hl; +} + +static int zcrypt_status_read(char *resp_buff, char **start, off_t offset, + int count, int *eof, void *data) +{ + unsigned char *workarea; + int len; + + len = 0; + + /* resp_buff is a page. Use the right half for a work area */ + workarea = resp_buff + 2000; + len += sprintf(resp_buff + len, "\nzcrypt version: %d.%d.%d\n", + ZCRYPT_VERSION, ZCRYPT_RELEASE, ZCRYPT_VARIANT); + len += sprintf(resp_buff + len, "Cryptographic domain: %d\n", + ap_domain_index); + len += sprintf(resp_buff + len, "Total device count: %d\n", + zcrypt_device_count); + len += sprintf(resp_buff + len, "PCICA count: %d\n", + zcrypt_count_type(ZCRYPT_PCICA)); + len += sprintf(resp_buff + len, "PCICC count: %d\n", + zcrypt_count_type(ZCRYPT_PCICC)); + len += sprintf(resp_buff + len, "PCIXCC MCL2 count: %d\n", + zcrypt_count_type(ZCRYPT_PCIXCC_MCL2)); + len += sprintf(resp_buff + len, "PCIXCC MCL3 count: %d\n", + zcrypt_count_type(ZCRYPT_PCIXCC_MCL3)); + len += sprintf(resp_buff + len, "CEX2C count: %d\n", + zcrypt_count_type(ZCRYPT_CEX2C)); + len += sprintf(resp_buff + len, "CEX2A count: %d\n", + zcrypt_count_type(ZCRYPT_CEX2A)); + len += sprintf(resp_buff + len, "requestq count: %d\n", + zcrypt_requestq_count()); + len += sprintf(resp_buff + len, "pendingq count: %d\n", + zcrypt_pendingq_count()); + len += sprintf(resp_buff + len, "Total open handles: %d\n\n", + atomic_read(&zcrypt_open_count)); + zcrypt_status_mask(workarea); + len += sprinthx("Online devices: 1=PCICA 2=PCICC 3=PCIXCC(MCL2) " + "4=PCIXCC(MCL3) 5=CEX2C 6=CEX2A", + resp_buff+len, workarea, AP_DEVICES); + zcrypt_qdepth_mask(workarea); + len += sprinthx("Waiting work element counts", + resp_buff+len, workarea, AP_DEVICES); + zcrypt_perdev_reqcnt((unsigned int *) workarea); + len += sprinthx4("Per-device successfully completed request counts", + resp_buff+len,(unsigned int *) workarea, AP_DEVICES); + *eof = 1; + memset((void *) workarea, 0x00, AP_DEVICES * sizeof(unsigned int)); + return len; +} + +static void zcrypt_disable_card(int index) +{ + struct zcrypt_device *zdev; + + spin_lock_bh(&zcrypt_device_lock); + list_for_each_entry(zdev, &zcrypt_device_list, list) + if (AP_QID_DEVICE(zdev->ap_dev->qid) == index) { + zdev->online = 0; + ap_flush_queue(zdev->ap_dev); + break; + } + spin_unlock_bh(&zcrypt_device_lock); +} + +static void zcrypt_enable_card(int index) +{ + struct zcrypt_device *zdev; + + spin_lock_bh(&zcrypt_device_lock); + list_for_each_entry(zdev, &zcrypt_device_list, list) + if (AP_QID_DEVICE(zdev->ap_dev->qid) == index) { + zdev->online = 1; + break; + } + spin_unlock_bh(&zcrypt_device_lock); +} + +static int zcrypt_status_write(struct file *file, const char __user *buffer, + unsigned long count, void *data) +{ + unsigned char *lbuf, *ptr; + unsigned long local_count; + int j; + + if (count <= 0) + return 0; + +#define LBUFSIZE 1200UL + lbuf = kmalloc(LBUFSIZE, GFP_KERNEL); + if (!lbuf) { + PRINTK("kmalloc failed!\n"); + return 0; + } + + local_count = min(LBUFSIZE - 1, count); + if (copy_from_user(lbuf, buffer, local_count) != 0) { + kfree(lbuf); + return -EFAULT; + } + lbuf[local_count] = '\0'; + + ptr = strstr(lbuf, "Online devices"); + if (!ptr) { + PRINTK("Unable to parse data (missing \"Online devices\")\n"); + goto out; + } + ptr = strstr(ptr, "\n"); + if (!ptr) { + PRINTK("Unable to parse data (missing newline " + "after \"Online devices\")\n"); + goto out; + } + ptr++; + + if (strstr(ptr, "Waiting work element counts") == NULL) { + PRINTK("Unable to parse data (missing " + "\"Waiting work element counts\")\n"); + goto out; + } + + for (j = 0; j < 64 && *ptr; ptr++) { + /** + * '0' for no device, '1' for PCICA, '2' for PCICC, + * '3' for PCIXCC_MCL2, '4' for PCIXCC_MCL3, + * '5' for CEX2C and '6' for CEX2A' + */ + if (*ptr >= '0' && *ptr <= '6') + j++; + else if (*ptr == 'd' || *ptr == 'D') + zcrypt_disable_card(j++); + else if (*ptr == 'e' || *ptr == 'E') + zcrypt_enable_card(j++); + else if (*ptr != ' ' && *ptr != '\t') + break; + } +out: + kfree(lbuf); + return count; +} + +/** + * The module initialization code. + */ +int __init zcrypt_api_init(void) +{ + int rc; + + /* Register the request sprayer. */ + rc = misc_register(&zcrypt_misc_device); + if (rc < 0) { + PRINTKW(KERN_ERR "misc_register (minor %d) failed with %d\n", + zcrypt_misc_device.minor, rc); + goto out; + } + + /* Set up the proc file system */ + zcrypt_entry = create_proc_entry("driver/z90crypt", 0644, NULL); + if (!zcrypt_entry) { + PRINTK("Couldn't create z90crypt proc entry\n"); + rc = -ENOMEM; + goto out_misc; + } + zcrypt_entry->nlink = 1; + zcrypt_entry->data = NULL; + zcrypt_entry->read_proc = zcrypt_status_read; + zcrypt_entry->write_proc = zcrypt_status_write; + + return 0; + +out_misc: + misc_deregister(&zcrypt_misc_device); +out: + return rc; +} + +/** + * The module termination code. + */ +void zcrypt_api_exit(void) +{ + remove_proc_entry("driver/z90crypt", NULL); + misc_deregister(&zcrypt_misc_device); +} + +#ifndef CONFIG_ZCRYPT_MONOLITHIC +module_init(zcrypt_api_init); +module_exit(zcrypt_api_exit); +#endif diff --git a/drivers/s390/crypto/zcrypt_api.h b/drivers/s390/crypto/zcrypt_api.h new file mode 100644 index 00000000000..1f0e61f2e9b --- /dev/null +++ b/drivers/s390/crypto/zcrypt_api.h @@ -0,0 +1,140 @@ +/* + * linux/drivers/s390/crypto/zcrypt_api.h + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * Cornelia Huck + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * Ralph Wuerthner + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _ZCRYPT_API_H_ +#define _ZCRYPT_API_H_ + +/** + * Macro definitions + * + * PDEBUG debugs in the form "zcrypt: function_name -> message" + * + * PRINTK is like PDEBUG, except that it is always enabled + * PRINTKN is like PRINTK, except that it does not include the function name + * PRINTKW is like PRINTK, except that it uses KERN_WARNING + * PRINTKC is like PRINTK, except that it uses KERN_CRIT + */ +#define DEV_NAME "zcrypt" + +#define PRINTK(fmt, args...) \ + printk(KERN_DEBUG DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) +#define PRINTKN(fmt, args...) \ + printk(KERN_DEBUG DEV_NAME ": " fmt, ## args) +#define PRINTKW(fmt, args...) \ + printk(KERN_WARNING DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) +#define PRINTKC(fmt, args...) \ + printk(KERN_CRIT DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) + +#ifdef ZCRYPT_DEBUG +#define PDEBUG(fmt, args...) \ + printk(KERN_DEBUG DEV_NAME ": %s -> " fmt, __FUNCTION__ , ## args) +#else +#define PDEBUG(fmt, args...) do {} while (0) +#endif + +#include "ap_bus.h" +#include + +/* deprecated status calls */ +#define ICAZ90STATUS _IOR(ZCRYPT_IOCTL_MAGIC, 0x10, struct ica_z90_status) +#define Z90STAT_PCIXCCCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x43, int) + +/** + * This structure is deprecated and the corresponding ioctl() has been + * replaced with individual ioctl()s for each piece of data! + */ +struct ica_z90_status { + int totalcount; + int leedslitecount; // PCICA + int leeds2count; // PCICC + // int PCIXCCCount; is not in struct for backward compatibility + int requestqWaitCount; + int pendingqWaitCount; + int totalOpenCount; + int cryptoDomain; + // status: 0=not there, 1=PCICA, 2=PCICC, 3=PCIXCC_MCL2, 4=PCIXCC_MCL3, + // 5=CEX2C + unsigned char status[64]; + // qdepth: # work elements waiting for each device + unsigned char qdepth[64]; +}; + +/** + * device type for an actual device is either PCICA, PCICC, PCIXCC_MCL2, + * PCIXCC_MCL3, CEX2C, or CEX2A + * + * NOTE: PCIXCC_MCL3 refers to a PCIXCC with May 2004 version of Licensed + * Internal Code (LIC) (EC J12220 level 29). + * PCIXCC_MCL2 refers to any LIC before this level. + */ +#define ZCRYPT_PCICA 1 +#define ZCRYPT_PCICC 2 +#define ZCRYPT_PCIXCC_MCL2 3 +#define ZCRYPT_PCIXCC_MCL3 4 +#define ZCRYPT_CEX2C 5 +#define ZCRYPT_CEX2A 6 + +struct zcrypt_device; + +struct zcrypt_ops { + long (*rsa_modexpo)(struct zcrypt_device *, struct ica_rsa_modexpo *); + long (*rsa_modexpo_crt)(struct zcrypt_device *, + struct ica_rsa_modexpo_crt *); +}; + +struct zcrypt_device { + struct list_head list; /* Device list. */ + spinlock_t lock; /* Per device lock. */ + struct kref refcount; /* device refcounting */ + struct ap_device *ap_dev; /* The "real" ap device. */ + struct zcrypt_ops *ops; /* Crypto operations. */ + int online; /* User online/offline */ + + int user_space_type; /* User space device id. */ + char *type_string; /* User space device name. */ + int min_mod_size; /* Min number of bits. */ + int max_mod_size; /* Max number of bits. */ + int short_crt; /* Card has crt length restriction. */ + int speed_rating; /* Speed of the crypto device. */ + + int request_count; /* # current requests. */ + + struct ap_message reply; /* Per-device reply structure. */ +}; + +struct zcrypt_device *zcrypt_device_alloc(size_t); +void zcrypt_device_free(struct zcrypt_device *); +void zcrypt_device_get(struct zcrypt_device *); +int zcrypt_device_put(struct zcrypt_device *); +int zcrypt_device_register(struct zcrypt_device *); +void zcrypt_device_unregister(struct zcrypt_device *); +int zcrypt_api_init(void); +void zcrypt_api_exit(void); + +#endif /* _ZCRYPT_API_H_ */ diff --git a/include/asm-s390/zcrypt.h b/include/asm-s390/zcrypt.h new file mode 100644 index 00000000000..0d6a3e2a334 --- /dev/null +++ b/include/asm-s390/zcrypt.h @@ -0,0 +1,207 @@ +/* + * include/asm-s390/zcrypt.h + * + * zcrypt 2.0.0 (user-visible header) + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef __ASM_S390_ZCRYPT_H +#define __ASM_S390_ZCRYPT_H + +#define ZCRYPT_VERSION 2 +#define ZCRYPT_RELEASE 1 +#define ZCRYPT_VARIANT 0 + +#include +#include + +/** + * struct ica_rsa_modexpo + * + * Requirements: + * - outputdatalength is at least as large as inputdatalength. + * - All key parts are right justified in their fields, padded on + * the left with zeroes. + * - length(b_key) = inputdatalength + * - length(n_modulus) = inputdatalength + */ +struct ica_rsa_modexpo { + char __user * inputdata; + unsigned int inputdatalength; + char __user * outputdata; + unsigned int outputdatalength; + char __user * b_key; + char __user * n_modulus; +}; + +/** + * struct ica_rsa_modexpo_crt + * + * Requirements: + * - inputdatalength is even. + * - outputdatalength is at least as large as inputdatalength. + * - All key parts are right justified in their fields, padded on + * the left with zeroes. + * - length(bp_key) = inputdatalength/2 + 8 + * - length(bq_key) = inputdatalength/2 + * - length(np_key) = inputdatalength/2 + 8 + * - length(nq_key) = inputdatalength/2 + * - length(u_mult_inv) = inputdatalength/2 + 8 + */ +struct ica_rsa_modexpo_crt { + char __user * inputdata; + unsigned int inputdatalength; + char __user * outputdata; + unsigned int outputdatalength; + char __user * bp_key; + char __user * bq_key; + char __user * np_prime; + char __user * nq_prime; + char __user * u_mult_inv; +}; + +#define ZCRYPT_IOCTL_MAGIC 'z' + +/** + * Interface notes: + * + * The ioctl()s which are implemented (along with relevant details) + * are: + * + * ICARSAMODEXPO + * Perform an RSA operation using a Modulus-Exponent pair + * This takes an ica_rsa_modexpo struct as its arg. + * + * NOTE: please refer to the comments preceding this structure + * for the implementation details for the contents of the + * block + * + * ICARSACRT + * Perform an RSA operation using a Chinese-Remainder Theorem key + * This takes an ica_rsa_modexpo_crt struct as its arg. + * + * NOTE: please refer to the comments preceding this structure + * for the implementation details for the contents of the + * block + * + * Z90STAT_TOTALCOUNT + * Return an integer count of all device types together. + * + * Z90STAT_PCICACOUNT + * Return an integer count of all PCICAs. + * + * Z90STAT_PCICCCOUNT + * Return an integer count of all PCICCs. + * + * Z90STAT_PCIXCCMCL2COUNT + * Return an integer count of all MCL2 PCIXCCs. + * + * Z90STAT_PCIXCCMCL3COUNT + * Return an integer count of all MCL3 PCIXCCs. + * + * Z90STAT_CEX2CCOUNT + * Return an integer count of all CEX2Cs. + * + * Z90STAT_CEX2ACOUNT + * Return an integer count of all CEX2As. + * + * Z90STAT_REQUESTQ_COUNT + * Return an integer count of the number of entries waiting to be + * sent to a device. + * + * Z90STAT_PENDINGQ_COUNT + * Return an integer count of the number of entries sent to a + * device awaiting the reply. + * + * Z90STAT_TOTALOPEN_COUNT + * Return an integer count of the number of open file handles. + * + * Z90STAT_DOMAIN_INDEX + * Return the integer value of the Cryptographic Domain. + * + * Z90STAT_STATUS_MASK + * Return an 64 element array of unsigned chars for the status of + * all devices. + * 0x01: PCICA + * 0x02: PCICC + * 0x03: PCIXCC_MCL2 + * 0x04: PCIXCC_MCL3 + * 0x05: CEX2C + * 0x06: CEX2A + * 0x0d: device is disabled via the proc filesystem + * + * Z90STAT_QDEPTH_MASK + * Return an 64 element array of unsigned chars for the queue + * depth of all devices. + * + * Z90STAT_PERDEV_REQCNT + * Return an 64 element array of unsigned integers for the number + * of successfully completed requests per device since the device + * was detected and made available. + * + * ICAZ90STATUS (deprecated) + * Return some device driver status in a ica_z90_status struct + * This takes an ica_z90_status struct as its arg. + * + * NOTE: this ioctl() is deprecated, and has been replaced with + * single ioctl()s for each type of status being requested + * + * Z90STAT_PCIXCCCOUNT (deprecated) + * Return an integer count of all PCIXCCs (MCL2 + MCL3). + * This is DEPRECATED now that MCL3 PCIXCCs are treated differently from + * MCL2 PCIXCCs. + * + * Z90QUIESCE (not recommended) + * Quiesce the driver. This is intended to stop all new + * requests from being processed. Its use is NOT recommended, + * except in circumstances where there is no other way to stop + * callers from accessing the driver. Its original use was to + * allow the driver to be "drained" of work in preparation for + * a system shutdown. + * + * NOTE: once issued, this ban on new work cannot be undone + * except by unloading and reloading the driver. + */ + +/** + * Supported ioctl calls + */ +#define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0) +#define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0) + +/* New status calls */ +#define Z90STAT_TOTALCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int) +#define Z90STAT_PCICACOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x41, int) +#define Z90STAT_PCICCCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x42, int) +#define Z90STAT_PCIXCCMCL2COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4b, int) +#define Z90STAT_PCIXCCMCL3COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4c, int) +#define Z90STAT_CEX2CCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4d, int) +#define Z90STAT_CEX2ACOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4e, int) +#define Z90STAT_REQUESTQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x44, int) +#define Z90STAT_PENDINGQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x45, int) +#define Z90STAT_TOTALOPEN_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x46, int) +#define Z90STAT_DOMAIN_INDEX _IOR(ZCRYPT_IOCTL_MAGIC, 0x47, int) +#define Z90STAT_STATUS_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x48, char[64]) +#define Z90STAT_QDEPTH_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x49, char[64]) +#define Z90STAT_PERDEV_REQCNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4a, int[64]) + +#endif /* __ASM_S390_ZCRYPT_H */ -- cgit v1.2.3-70-g09d2 From 963ed931c3fd18082bfde0e8704a28955663abf4 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:58:29 +0200 Subject: [S390] zcrypt CEX2A, CEX2C, PCICA accelerator card ap bus drivers. Signed-off-by: Ralph Wuerthner Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/zcrypt_cex2a.c | 435 +++++++++++++++++++++++++++++++++++++ drivers/s390/crypto/zcrypt_cex2a.h | 126 +++++++++++ drivers/s390/crypto/zcrypt_error.h | 133 ++++++++++++ drivers/s390/crypto/zcrypt_pcica.c | 418 +++++++++++++++++++++++++++++++++++ drivers/s390/crypto/zcrypt_pcica.h | 117 ++++++++++ 5 files changed, 1229 insertions(+) create mode 100644 drivers/s390/crypto/zcrypt_cex2a.c create mode 100644 drivers/s390/crypto/zcrypt_cex2a.h create mode 100644 drivers/s390/crypto/zcrypt_error.h create mode 100644 drivers/s390/crypto/zcrypt_pcica.c create mode 100644 drivers/s390/crypto/zcrypt_pcica.h (limited to 'drivers') diff --git a/drivers/s390/crypto/zcrypt_cex2a.c b/drivers/s390/crypto/zcrypt_cex2a.c new file mode 100644 index 00000000000..350248e5cd9 --- /dev/null +++ b/drivers/s390/crypto/zcrypt_cex2a.c @@ -0,0 +1,435 @@ +/* + * linux/drivers/s390/crypto/zcrypt_cex2a.c + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * Ralph Wuerthner + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include + +#include "ap_bus.h" +#include "zcrypt_api.h" +#include "zcrypt_error.h" +#include "zcrypt_cex2a.h" + +#define CEX2A_MIN_MOD_SIZE 1 /* 8 bits */ +#define CEX2A_MAX_MOD_SIZE 256 /* 2048 bits */ + +#define CEX2A_SPEED_RATING 970 + +#define CEX2A_MAX_MESSAGE_SIZE 0x390 /* sizeof(struct type50_crb2_msg) */ +#define CEX2A_MAX_RESPONSE_SIZE 0x110 /* max outputdatalength + type80_hdr */ + +#define CEX2A_CLEANUP_TIME (15*HZ) + +static struct ap_device_id zcrypt_cex2a_ids[] = { + { AP_DEVICE(AP_DEVICE_TYPE_CEX2A) }, + { /* end of list */ }, +}; + +#ifndef CONFIG_ZCRYPT_MONOLITHIC +MODULE_DEVICE_TABLE(ap, zcrypt_cex2a_ids); +MODULE_AUTHOR("IBM Corporation"); +MODULE_DESCRIPTION("CEX2A Cryptographic Coprocessor device driver, " + "Copyright 2001, 2006 IBM Corporation"); +MODULE_LICENSE("GPL"); +#endif + +static int zcrypt_cex2a_probe(struct ap_device *ap_dev); +static void zcrypt_cex2a_remove(struct ap_device *ap_dev); +static void zcrypt_cex2a_receive(struct ap_device *, struct ap_message *, + struct ap_message *); + +static struct ap_driver zcrypt_cex2a_driver = { + .probe = zcrypt_cex2a_probe, + .remove = zcrypt_cex2a_remove, + .receive = zcrypt_cex2a_receive, + .ids = zcrypt_cex2a_ids, +}; + +/** + * Convert a ICAMEX message to a type50 MEX message. + * + * @zdev: crypto device pointer + * @zreq: crypto request pointer + * @mex: pointer to user input data + * + * Returns 0 on success or -EFAULT. + */ +static int ICAMEX_msg_to_type50MEX_msg(struct zcrypt_device *zdev, + struct ap_message *ap_msg, + struct ica_rsa_modexpo *mex) +{ + unsigned char *mod, *exp, *inp; + int mod_len; + + mod_len = mex->inputdatalength; + + if (mod_len <= 128) { + struct type50_meb1_msg *meb1 = ap_msg->message; + memset(meb1, 0, sizeof(*meb1)); + ap_msg->length = sizeof(*meb1); + meb1->header.msg_type_code = TYPE50_TYPE_CODE; + meb1->header.msg_len = sizeof(*meb1); + meb1->keyblock_type = TYPE50_MEB1_FMT; + mod = meb1->modulus + sizeof(meb1->modulus) - mod_len; + exp = meb1->exponent + sizeof(meb1->exponent) - mod_len; + inp = meb1->message + sizeof(meb1->message) - mod_len; + } else { + struct type50_meb2_msg *meb2 = ap_msg->message; + memset(meb2, 0, sizeof(*meb2)); + ap_msg->length = sizeof(*meb2); + meb2->header.msg_type_code = TYPE50_TYPE_CODE; + meb2->header.msg_len = sizeof(*meb2); + meb2->keyblock_type = TYPE50_MEB2_FMT; + mod = meb2->modulus + sizeof(meb2->modulus) - mod_len; + exp = meb2->exponent + sizeof(meb2->exponent) - mod_len; + inp = meb2->message + sizeof(meb2->message) - mod_len; + } + + if (copy_from_user(mod, mex->n_modulus, mod_len) || + copy_from_user(exp, mex->b_key, mod_len) || + copy_from_user(inp, mex->inputdata, mod_len)) + return -EFAULT; + return 0; +} + +/** + * Convert a ICACRT message to a type50 CRT message. + * + * @zdev: crypto device pointer + * @zreq: crypto request pointer + * @crt: pointer to user input data + * + * Returns 0 on success or -EFAULT. + */ +static int ICACRT_msg_to_type50CRT_msg(struct zcrypt_device *zdev, + struct ap_message *ap_msg, + struct ica_rsa_modexpo_crt *crt) +{ + int mod_len, short_len, long_len, long_offset; + unsigned char *p, *q, *dp, *dq, *u, *inp; + + mod_len = crt->inputdatalength; + short_len = mod_len / 2; + long_len = mod_len / 2 + 8; + + /* + * CEX2A cannot handle p, dp, or U > 128 bytes. + * If we have one of these, we need to do extra checking. + */ + if (long_len > 128) { + /* + * zcrypt_rsa_crt already checked for the leading + * zeroes of np_prime, bp_key and u_mult_inc. + */ + long_offset = long_len - 128; + long_len = 128; + } else + long_offset = 0; + + /* + * Instead of doing extra work for p, dp, U > 64 bytes, we'll just use + * the larger message structure. + */ + if (long_len <= 64) { + struct type50_crb1_msg *crb1 = ap_msg->message; + memset(crb1, 0, sizeof(*crb1)); + ap_msg->length = sizeof(*crb1); + crb1->header.msg_type_code = TYPE50_TYPE_CODE; + crb1->header.msg_len = sizeof(*crb1); + crb1->keyblock_type = TYPE50_CRB1_FMT; + p = crb1->p + sizeof(crb1->p) - long_len; + q = crb1->q + sizeof(crb1->q) - short_len; + dp = crb1->dp + sizeof(crb1->dp) - long_len; + dq = crb1->dq + sizeof(crb1->dq) - short_len; + u = crb1->u + sizeof(crb1->u) - long_len; + inp = crb1->message + sizeof(crb1->message) - mod_len; + } else { + struct type50_crb2_msg *crb2 = ap_msg->message; + memset(crb2, 0, sizeof(*crb2)); + ap_msg->length = sizeof(*crb2); + crb2->header.msg_type_code = TYPE50_TYPE_CODE; + crb2->header.msg_len = sizeof(*crb2); + crb2->keyblock_type = TYPE50_CRB2_FMT; + p = crb2->p + sizeof(crb2->p) - long_len; + q = crb2->q + sizeof(crb2->q) - short_len; + dp = crb2->dp + sizeof(crb2->dp) - long_len; + dq = crb2->dq + sizeof(crb2->dq) - short_len; + u = crb2->u + sizeof(crb2->u) - long_len; + inp = crb2->message + sizeof(crb2->message) - mod_len; + } + + if (copy_from_user(p, crt->np_prime + long_offset, long_len) || + copy_from_user(q, crt->nq_prime, short_len) || + copy_from_user(dp, crt->bp_key + long_offset, long_len) || + copy_from_user(dq, crt->bq_key, short_len) || + copy_from_user(u, crt->u_mult_inv + long_offset, long_len) || + copy_from_user(inp, crt->inputdata, mod_len)) + return -EFAULT; + + + return 0; +} + +/** + * Copy results from a type 80 reply message back to user space. + * + * @zdev: crypto device pointer + * @reply: reply AP message. + * @data: pointer to user output data + * @length: size of user output data + * + * Returns 0 on success or -EFAULT. + */ +static int convert_type80(struct zcrypt_device *zdev, + struct ap_message *reply, + char __user *outputdata, + unsigned int outputdatalength) +{ + struct type80_hdr *t80h = reply->message; + unsigned char *data; + + if (t80h->len < sizeof(*t80h) + outputdatalength) { + /* The result is too short, the CEX2A card may not do that.. */ + zdev->online = 0; + return -EAGAIN; /* repeat the request on a different device. */ + } + BUG_ON(t80h->len > CEX2A_MAX_RESPONSE_SIZE); + data = reply->message + t80h->len - outputdatalength; + if (copy_to_user(outputdata, data, outputdatalength)) + return -EFAULT; + return 0; +} + +static int convert_response(struct zcrypt_device *zdev, + struct ap_message *reply, + char __user *outputdata, + unsigned int outputdatalength) +{ + /* Response type byte is the second byte in the response. */ + switch (((unsigned char *) reply->message)[1]) { + case TYPE82_RSP_CODE: + case TYPE88_RSP_CODE: + return convert_error(zdev, reply); + case TYPE80_RSP_CODE: + return convert_type80(zdev, reply, + outputdata, outputdatalength); + default: /* Unknown response type, this should NEVER EVER happen */ + PRINTK("Unrecognized Message Header: %08x%08x\n", + *(unsigned int *) reply->message, + *(unsigned int *) (reply->message+4)); + zdev->online = 0; + return -EAGAIN; /* repeat the request on a different device. */ + } +} + +/** + * This function is called from the AP bus code after a crypto request + * "msg" has finished with the reply message "reply". + * It is called from tasklet context. + * @ap_dev: pointer to the AP device + * @msg: pointer to the AP message + * @reply: pointer to the AP reply message + */ +static void zcrypt_cex2a_receive(struct ap_device *ap_dev, + struct ap_message *msg, + struct ap_message *reply) +{ + static struct error_hdr error_reply = { + .type = TYPE82_RSP_CODE, + .reply_code = REP82_ERROR_MACHINE_FAILURE, + }; + struct type80_hdr *t80h = reply->message; + int length; + + /* Copy the reply message to the request message buffer. */ + if (IS_ERR(reply)) + memcpy(msg->message, &error_reply, sizeof(error_reply)); + else if (t80h->type == TYPE80_RSP_CODE) { + length = min(CEX2A_MAX_RESPONSE_SIZE, (int) t80h->len); + memcpy(msg->message, reply->message, length); + } else + memcpy(msg->message, reply->message, sizeof error_reply); + complete((struct completion *) msg->private); +} + +static atomic_t zcrypt_step = ATOMIC_INIT(0); + +/** + * The request distributor calls this function if it picked the CEX2A + * device to handle a modexpo request. + * @zdev: pointer to zcrypt_device structure that identifies the + * CEX2A device to the request distributor + * @mex: pointer to the modexpo request buffer + */ +static long zcrypt_cex2a_modexpo(struct zcrypt_device *zdev, + struct ica_rsa_modexpo *mex) +{ + struct ap_message ap_msg; + struct completion work; + int rc; + + ap_msg.message = (void *) kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL); + if (!ap_msg.message) + return -ENOMEM; + ap_msg.psmid = (((unsigned long long) current->pid) << 32) + + atomic_inc_return(&zcrypt_step); + ap_msg.private = &work; + rc = ICAMEX_msg_to_type50MEX_msg(zdev, &ap_msg, mex); + if (rc) + goto out_free; + init_completion(&work); + ap_queue_message(zdev->ap_dev, &ap_msg); + rc = wait_for_completion_interruptible_timeout( + &work, CEX2A_CLEANUP_TIME); + if (rc > 0) + rc = convert_response(zdev, &ap_msg, mex->outputdata, + mex->outputdatalength); + else { + /* Signal pending or message timed out. */ + ap_cancel_message(zdev->ap_dev, &ap_msg); + if (rc == 0) + /* Message timed out. */ + rc = -ETIME; + } +out_free: + kfree(ap_msg.message); + return rc; +} + +/** + * The request distributor calls this function if it picked the CEX2A + * device to handle a modexpo_crt request. + * @zdev: pointer to zcrypt_device structure that identifies the + * CEX2A device to the request distributor + * @crt: pointer to the modexpoc_crt request buffer + */ +static long zcrypt_cex2a_modexpo_crt(struct zcrypt_device *zdev, + struct ica_rsa_modexpo_crt *crt) +{ + struct ap_message ap_msg; + struct completion work; + int rc; + + ap_msg.message = (void *) kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL); + if (!ap_msg.message) + return -ENOMEM; + ap_msg.psmid = (((unsigned long long) current->pid) << 32) + + atomic_inc_return(&zcrypt_step); + ap_msg.private = &work; + rc = ICACRT_msg_to_type50CRT_msg(zdev, &ap_msg, crt); + if (rc) + goto out_free; + init_completion(&work); + ap_queue_message(zdev->ap_dev, &ap_msg); + rc = wait_for_completion_interruptible_timeout( + &work, CEX2A_CLEANUP_TIME); + if (rc > 0) + rc = convert_response(zdev, &ap_msg, crt->outputdata, + crt->outputdatalength); + else { + /* Signal pending or message timed out. */ + ap_cancel_message(zdev->ap_dev, &ap_msg); + if (rc == 0) + /* Message timed out. */ + rc = -ETIME; + } +out_free: + kfree(ap_msg.message); + return rc; +} + +/** + * The crypto operations for a CEX2A card. + */ +static struct zcrypt_ops zcrypt_cex2a_ops = { + .rsa_modexpo = zcrypt_cex2a_modexpo, + .rsa_modexpo_crt = zcrypt_cex2a_modexpo_crt, +}; + +/** + * Probe function for CEX2A cards. It always accepts the AP device + * since the bus_match already checked the hardware type. + * @ap_dev: pointer to the AP device. + */ +static int zcrypt_cex2a_probe(struct ap_device *ap_dev) +{ + struct zcrypt_device *zdev; + int rc; + + zdev = zcrypt_device_alloc(CEX2A_MAX_RESPONSE_SIZE); + if (!zdev) + return -ENOMEM; + zdev->ap_dev = ap_dev; + zdev->ops = &zcrypt_cex2a_ops; + zdev->online = 1; + zdev->user_space_type = ZCRYPT_CEX2A; + zdev->type_string = "CEX2A"; + zdev->min_mod_size = CEX2A_MIN_MOD_SIZE; + zdev->max_mod_size = CEX2A_MAX_MOD_SIZE; + zdev->short_crt = 1; + zdev->speed_rating = CEX2A_SPEED_RATING; + ap_dev->reply = &zdev->reply; + ap_dev->private = zdev; + rc = zcrypt_device_register(zdev); + if (rc) + goto out_free; + return 0; + +out_free: + ap_dev->private = NULL; + zcrypt_device_free(zdev); + return rc; +} + +/** + * This is called to remove the extended CEX2A driver information + * if an AP device is removed. + */ +static void zcrypt_cex2a_remove(struct ap_device *ap_dev) +{ + struct zcrypt_device *zdev = ap_dev->private; + + zcrypt_device_unregister(zdev); +} + +int __init zcrypt_cex2a_init(void) +{ + return ap_driver_register(&zcrypt_cex2a_driver, THIS_MODULE, "cex2a"); +} + +void __exit zcrypt_cex2a_exit(void) +{ + ap_driver_unregister(&zcrypt_cex2a_driver); +} + +#ifndef CONFIG_ZCRYPT_MONOLITHIC +module_init(zcrypt_cex2a_init); +module_exit(zcrypt_cex2a_exit); +#endif diff --git a/drivers/s390/crypto/zcrypt_cex2a.h b/drivers/s390/crypto/zcrypt_cex2a.h new file mode 100644 index 00000000000..61a78c32dce --- /dev/null +++ b/drivers/s390/crypto/zcrypt_cex2a.h @@ -0,0 +1,126 @@ +/* + * linux/drivers/s390/crypto/zcrypt_cex2a.h + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _ZCRYPT_CEX2A_H_ +#define _ZCRYPT_CEX2A_H_ + +/** + * The type 50 message family is associated with a CEX2A card. + * + * The four members of the family are described below. + * + * Note that all unsigned char arrays are right-justified and left-padded + * with zeroes. + * + * Note that all reserved fields must be zeroes. + */ +struct type50_hdr { + unsigned char reserved1; + unsigned char msg_type_code; /* 0x50 */ + unsigned short msg_len; + unsigned char reserved2; + unsigned char ignored; + unsigned short reserved3; +} __attribute__((packed)); + +#define TYPE50_TYPE_CODE 0x50 + +#define TYPE50_MEB1_FMT 0x0001 +#define TYPE50_MEB2_FMT 0x0002 +#define TYPE50_CRB1_FMT 0x0011 +#define TYPE50_CRB2_FMT 0x0012 + +/* Mod-Exp, with a small modulus */ +struct type50_meb1_msg { + struct type50_hdr header; + unsigned short keyblock_type; /* 0x0001 */ + unsigned char reserved[6]; + unsigned char exponent[128]; + unsigned char modulus[128]; + unsigned char message[128]; +} __attribute__((packed)); + +/* Mod-Exp, with a large modulus */ +struct type50_meb2_msg { + struct type50_hdr header; + unsigned short keyblock_type; /* 0x0002 */ + unsigned char reserved[6]; + unsigned char exponent[256]; + unsigned char modulus[256]; + unsigned char message[256]; +} __attribute__((packed)); + +/* CRT, with a small modulus */ +struct type50_crb1_msg { + struct type50_hdr header; + unsigned short keyblock_type; /* 0x0011 */ + unsigned char reserved[6]; + unsigned char p[64]; + unsigned char q[64]; + unsigned char dp[64]; + unsigned char dq[64]; + unsigned char u[64]; + unsigned char message[128]; +} __attribute__((packed)); + +/* CRT, with a large modulus */ +struct type50_crb2_msg { + struct type50_hdr header; + unsigned short keyblock_type; /* 0x0012 */ + unsigned char reserved[6]; + unsigned char p[128]; + unsigned char q[128]; + unsigned char dp[128]; + unsigned char dq[128]; + unsigned char u[128]; + unsigned char message[256]; +} __attribute__((packed)); + +/** + * The type 80 response family is associated with a CEX2A card. + * + * Note that all unsigned char arrays are right-justified and left-padded + * with zeroes. + * + * Note that all reserved fields must be zeroes. + */ + +#define TYPE80_RSP_CODE 0x80 + +struct type80_hdr { + unsigned char reserved1; + unsigned char type; /* 0x80 */ + unsigned short len; + unsigned char code; /* 0x00 */ + unsigned char reserved2[3]; + unsigned char reserved3[8]; +} __attribute__((packed)); + +int zcrypt_cex2a_init(void); +void zcrypt_cex2a_exit(void); + +#endif /* _ZCRYPT_CEX2A_H_ */ diff --git a/drivers/s390/crypto/zcrypt_error.h b/drivers/s390/crypto/zcrypt_error.h new file mode 100644 index 00000000000..b22bd055a03 --- /dev/null +++ b/drivers/s390/crypto/zcrypt_error.h @@ -0,0 +1,133 @@ +/* + * linux/drivers/s390/crypto/zcrypt_error.h + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _ZCRYPT_ERROR_H_ +#define _ZCRYPT_ERROR_H_ + +#include "zcrypt_api.h" + +/** + * Reply Messages + * + * Error reply messages are of two types: + * 82: Error (see below) + * 88: Error (see below) + * Both type 82 and type 88 have the same structure in the header. + * + * Request reply messages are of three known types: + * 80: Reply from a Type 50 Request (see CEX2A-RELATED STRUCTS) + * 84: Reply from a Type 4 Request (see PCICA-RELATED STRUCTS) + * 86: Reply from a Type 6 Request (see PCICC/PCIXCC/CEX2C-RELATED STRUCTS) + * + */ +struct error_hdr { + unsigned char reserved1; /* 0x00 */ + unsigned char type; /* 0x82 or 0x88 */ + unsigned char reserved2[2]; /* 0x0000 */ + unsigned char reply_code; /* reply code */ + unsigned char reserved3[3]; /* 0x000000 */ +}; + +#define TYPE82_RSP_CODE 0x82 +#define TYPE88_RSP_CODE 0x88 + +#define REP82_ERROR_MACHINE_FAILURE 0x10 +#define REP82_ERROR_PREEMPT_FAILURE 0x12 +#define REP82_ERROR_CHECKPT_FAILURE 0x14 +#define REP82_ERROR_MESSAGE_TYPE 0x20 +#define REP82_ERROR_INVALID_COMM_CD 0x21 /* Type 84 */ +#define REP82_ERROR_INVALID_MSG_LEN 0x23 +#define REP82_ERROR_RESERVD_FIELD 0x24 /* was 0x50 */ +#define REP82_ERROR_FORMAT_FIELD 0x29 +#define REP82_ERROR_INVALID_COMMAND 0x30 +#define REP82_ERROR_MALFORMED_MSG 0x40 +#define REP82_ERROR_RESERVED_FIELDO 0x50 /* old value */ +#define REP82_ERROR_WORD_ALIGNMENT 0x60 +#define REP82_ERROR_MESSAGE_LENGTH 0x80 +#define REP82_ERROR_OPERAND_INVALID 0x82 +#define REP82_ERROR_OPERAND_SIZE 0x84 +#define REP82_ERROR_EVEN_MOD_IN_OPND 0x85 +#define REP82_ERROR_RESERVED_FIELD 0x88 +#define REP82_ERROR_TRANSPORT_FAIL 0x90 +#define REP82_ERROR_PACKET_TRUNCATED 0xA0 +#define REP82_ERROR_ZERO_BUFFER_LEN 0xB0 + +#define REP88_ERROR_MODULE_FAILURE 0x10 + +#define REP88_ERROR_MESSAGE_TYPE 0x20 +#define REP88_ERROR_MESSAGE_MALFORMD 0x22 +#define REP88_ERROR_MESSAGE_LENGTH 0x23 +#define REP88_ERROR_RESERVED_FIELD 0x24 +#define REP88_ERROR_KEY_TYPE 0x34 +#define REP88_ERROR_INVALID_KEY 0x82 /* CEX2A */ +#define REP88_ERROR_OPERAND 0x84 /* CEX2A */ +#define REP88_ERROR_OPERAND_EVEN_MOD 0x85 /* CEX2A */ + +static inline int convert_error(struct zcrypt_device *zdev, + struct ap_message *reply) +{ + struct error_hdr *ehdr = reply->message; + + PRINTK("Hardware error : Type %02x Message Header: %08x%08x\n", + ehdr->type, *(unsigned int *) reply->message, + *(unsigned int *) (reply->message + 4)); + + switch (ehdr->reply_code) { + case REP82_ERROR_OPERAND_INVALID: + case REP82_ERROR_OPERAND_SIZE: + case REP82_ERROR_EVEN_MOD_IN_OPND: + case REP88_ERROR_MESSAGE_MALFORMD: + // REP88_ERROR_INVALID_KEY // '82' CEX2A + // REP88_ERROR_OPERAND // '84' CEX2A + // REP88_ERROR_OPERAND_EVEN_MOD // '85' CEX2A + /* Invalid input data. */ + return -EINVAL; + case REP82_ERROR_MESSAGE_TYPE: + // REP88_ERROR_MESSAGE_TYPE // '20' CEX2A + /** + * To sent a message of the wrong type is a bug in the + * device driver. Warn about it, disable the device + * and then repeat the request. + */ + WARN_ON(1); + zdev->online = 0; + return -EAGAIN; + case REP82_ERROR_TRANSPORT_FAIL: + case REP82_ERROR_MACHINE_FAILURE: + // REP88_ERROR_MODULE_FAILURE // '10' CEX2A + /* If a card fails disable it and repeat the request. */ + zdev->online = 0; + return -EAGAIN; + default: + PRINTKW("unknown type %02x reply code = %d\n", + ehdr->type, ehdr->reply_code); + zdev->online = 0; + return -EAGAIN; /* repeat the request on a different device. */ + } +} + +#endif /* _ZCRYPT_ERROR_H_ */ diff --git a/drivers/s390/crypto/zcrypt_pcica.c b/drivers/s390/crypto/zcrypt_pcica.c new file mode 100644 index 00000000000..0ff56e86caa --- /dev/null +++ b/drivers/s390/crypto/zcrypt_pcica.c @@ -0,0 +1,418 @@ +/* + * linux/drivers/s390/crypto/zcrypt_pcica.c + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * Ralph Wuerthner + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include + +#include "ap_bus.h" +#include "zcrypt_api.h" +#include "zcrypt_error.h" +#include "zcrypt_pcica.h" + +#define PCICA_MIN_MOD_SIZE 1 /* 8 bits */ +#define PCICA_MAX_MOD_SIZE 256 /* 2048 bits */ + +#define PCICA_SPEED_RATING 2800 + +#define PCICA_MAX_MESSAGE_SIZE 0x3a0 /* sizeof(struct type4_lcr) */ +#define PCICA_MAX_RESPONSE_SIZE 0x110 /* max outputdatalength + type80_hdr */ + +#define PCICA_CLEANUP_TIME (15*HZ) + +static struct ap_device_id zcrypt_pcica_ids[] = { + { AP_DEVICE(AP_DEVICE_TYPE_PCICA) }, + { /* end of list */ }, +}; + +#ifndef CONFIG_ZCRYPT_MONOLITHIC +MODULE_DEVICE_TABLE(ap, zcrypt_pcica_ids); +MODULE_AUTHOR("IBM Corporation"); +MODULE_DESCRIPTION("PCICA Cryptographic Coprocessor device driver, " + "Copyright 2001, 2006 IBM Corporation"); +MODULE_LICENSE("GPL"); +#endif + +static int zcrypt_pcica_probe(struct ap_device *ap_dev); +static void zcrypt_pcica_remove(struct ap_device *ap_dev); +static void zcrypt_pcica_receive(struct ap_device *, struct ap_message *, + struct ap_message *); + +static struct ap_driver zcrypt_pcica_driver = { + .probe = zcrypt_pcica_probe, + .remove = zcrypt_pcica_remove, + .receive = zcrypt_pcica_receive, + .ids = zcrypt_pcica_ids, +}; + +/** + * Convert a ICAMEX message to a type4 MEX message. + * + * @zdev: crypto device pointer + * @zreq: crypto request pointer + * @mex: pointer to user input data + * + * Returns 0 on success or -EFAULT. + */ +static int ICAMEX_msg_to_type4MEX_msg(struct zcrypt_device *zdev, + struct ap_message *ap_msg, + struct ica_rsa_modexpo *mex) +{ + unsigned char *modulus, *exponent, *message; + int mod_len; + + mod_len = mex->inputdatalength; + + if (mod_len <= 128) { + struct type4_sme *sme = ap_msg->message; + memset(sme, 0, sizeof(*sme)); + ap_msg->length = sizeof(*sme); + sme->header.msg_fmt = TYPE4_SME_FMT; + sme->header.msg_len = sizeof(*sme); + sme->header.msg_type_code = TYPE4_TYPE_CODE; + sme->header.request_code = TYPE4_REQU_CODE; + modulus = sme->modulus + sizeof(sme->modulus) - mod_len; + exponent = sme->exponent + sizeof(sme->exponent) - mod_len; + message = sme->message + sizeof(sme->message) - mod_len; + } else { + struct type4_lme *lme = ap_msg->message; + memset(lme, 0, sizeof(*lme)); + ap_msg->length = sizeof(*lme); + lme->header.msg_fmt = TYPE4_LME_FMT; + lme->header.msg_len = sizeof(*lme); + lme->header.msg_type_code = TYPE4_TYPE_CODE; + lme->header.request_code = TYPE4_REQU_CODE; + modulus = lme->modulus + sizeof(lme->modulus) - mod_len; + exponent = lme->exponent + sizeof(lme->exponent) - mod_len; + message = lme->message + sizeof(lme->message) - mod_len; + } + + if (copy_from_user(modulus, mex->n_modulus, mod_len) || + copy_from_user(exponent, mex->b_key, mod_len) || + copy_from_user(message, mex->inputdata, mod_len)) + return -EFAULT; + return 0; +} + +/** + * Convert a ICACRT message to a type4 CRT message. + * + * @zdev: crypto device pointer + * @zreq: crypto request pointer + * @crt: pointer to user input data + * + * Returns 0 on success or -EFAULT. + */ +static int ICACRT_msg_to_type4CRT_msg(struct zcrypt_device *zdev, + struct ap_message *ap_msg, + struct ica_rsa_modexpo_crt *crt) +{ + unsigned char *p, *q, *dp, *dq, *u, *inp; + int mod_len, short_len, long_len; + + mod_len = crt->inputdatalength; + short_len = mod_len / 2; + long_len = mod_len / 2 + 8; + + if (mod_len <= 128) { + struct type4_scr *scr = ap_msg->message; + memset(scr, 0, sizeof(*scr)); + ap_msg->length = sizeof(*scr); + scr->header.msg_type_code = TYPE4_TYPE_CODE; + scr->header.request_code = TYPE4_REQU_CODE; + scr->header.msg_fmt = TYPE4_SCR_FMT; + scr->header.msg_len = sizeof(*scr); + p = scr->p + sizeof(scr->p) - long_len; + q = scr->q + sizeof(scr->q) - short_len; + dp = scr->dp + sizeof(scr->dp) - long_len; + dq = scr->dq + sizeof(scr->dq) - short_len; + u = scr->u + sizeof(scr->u) - long_len; + inp = scr->message + sizeof(scr->message) - mod_len; + } else { + struct type4_lcr *lcr = ap_msg->message; + memset(lcr, 0, sizeof(*lcr)); + ap_msg->length = sizeof(*lcr); + lcr->header.msg_type_code = TYPE4_TYPE_CODE; + lcr->header.request_code = TYPE4_REQU_CODE; + lcr->header.msg_fmt = TYPE4_LCR_FMT; + lcr->header.msg_len = sizeof(*lcr); + p = lcr->p + sizeof(lcr->p) - long_len; + q = lcr->q + sizeof(lcr->q) - short_len; + dp = lcr->dp + sizeof(lcr->dp) - long_len; + dq = lcr->dq + sizeof(lcr->dq) - short_len; + u = lcr->u + sizeof(lcr->u) - long_len; + inp = lcr->message + sizeof(lcr->message) - mod_len; + } + + if (copy_from_user(p, crt->np_prime, long_len) || + copy_from_user(q, crt->nq_prime, short_len) || + copy_from_user(dp, crt->bp_key, long_len) || + copy_from_user(dq, crt->bq_key, short_len) || + copy_from_user(u, crt->u_mult_inv, long_len) || + copy_from_user(inp, crt->inputdata, mod_len)) + return -EFAULT; + return 0; +} + +/** + * Copy results from a type 84 reply message back to user space. + * + * @zdev: crypto device pointer + * @reply: reply AP message. + * @data: pointer to user output data + * @length: size of user output data + * + * Returns 0 on success or -EFAULT. + */ +static inline int convert_type84(struct zcrypt_device *zdev, + struct ap_message *reply, + char __user *outputdata, + unsigned int outputdatalength) +{ + struct type84_hdr *t84h = reply->message; + char *data; + + if (t84h->len < sizeof(*t84h) + outputdatalength) { + /* The result is too short, the PCICA card may not do that.. */ + zdev->online = 0; + return -EAGAIN; /* repeat the request on a different device. */ + } + BUG_ON(t84h->len > PCICA_MAX_RESPONSE_SIZE); + data = reply->message + t84h->len - outputdatalength; + if (copy_to_user(outputdata, data, outputdatalength)) + return -EFAULT; + return 0; +} + +static int convert_response(struct zcrypt_device *zdev, + struct ap_message *reply, + char __user *outputdata, + unsigned int outputdatalength) +{ + /* Response type byte is the second byte in the response. */ + switch (((unsigned char *) reply->message)[1]) { + case TYPE82_RSP_CODE: + case TYPE88_RSP_CODE: + return convert_error(zdev, reply); + case TYPE84_RSP_CODE: + return convert_type84(zdev, reply, + outputdata, outputdatalength); + default: /* Unknown response type, this should NEVER EVER happen */ + PRINTK("Unrecognized Message Header: %08x%08x\n", + *(unsigned int *) reply->message, + *(unsigned int *) (reply->message+4)); + zdev->online = 0; + return -EAGAIN; /* repeat the request on a different device. */ + } +} + +/** + * This function is called from the AP bus code after a crypto request + * "msg" has finished with the reply message "reply". + * It is called from tasklet context. + * @ap_dev: pointer to the AP device + * @msg: pointer to the AP message + * @reply: pointer to the AP reply message + */ +static void zcrypt_pcica_receive(struct ap_device *ap_dev, + struct ap_message *msg, + struct ap_message *reply) +{ + static struct error_hdr error_reply = { + .type = TYPE82_RSP_CODE, + .reply_code = REP82_ERROR_MACHINE_FAILURE, + }; + struct type84_hdr *t84h = reply->message; + int length; + + /* Copy the reply message to the request message buffer. */ + if (IS_ERR(reply)) + memcpy(msg->message, &error_reply, sizeof(error_reply)); + else if (t84h->code == TYPE84_RSP_CODE) { + length = min(PCICA_MAX_RESPONSE_SIZE, (int) t84h->len); + memcpy(msg->message, reply->message, length); + } else + memcpy(msg->message, reply->message, sizeof error_reply); + complete((struct completion *) msg->private); +} + +static atomic_t zcrypt_step = ATOMIC_INIT(0); + +/** + * The request distributor calls this function if it picked the PCICA + * device to handle a modexpo request. + * @zdev: pointer to zcrypt_device structure that identifies the + * PCICA device to the request distributor + * @mex: pointer to the modexpo request buffer + */ +static long zcrypt_pcica_modexpo(struct zcrypt_device *zdev, + struct ica_rsa_modexpo *mex) +{ + struct ap_message ap_msg; + struct completion work; + int rc; + + ap_msg.message = (void *) kmalloc(PCICA_MAX_MESSAGE_SIZE, GFP_KERNEL); + if (!ap_msg.message) + return -ENOMEM; + ap_msg.psmid = (((unsigned long long) current->pid) << 32) + + atomic_inc_return(&zcrypt_step); + ap_msg.private = &work; + rc = ICAMEX_msg_to_type4MEX_msg(zdev, &ap_msg, mex); + if (rc) + goto out_free; + init_completion(&work); + ap_queue_message(zdev->ap_dev, &ap_msg); + rc = wait_for_completion_interruptible_timeout( + &work, PCICA_CLEANUP_TIME); + if (rc > 0) + rc = convert_response(zdev, &ap_msg, mex->outputdata, + mex->outputdatalength); + else { + /* Signal pending or message timed out. */ + ap_cancel_message(zdev->ap_dev, &ap_msg); + if (rc == 0) + /* Message timed out. */ + rc = -ETIME; + } +out_free: + kfree(ap_msg.message); + return rc; +} + +/** + * The request distributor calls this function if it picked the PCICA + * device to handle a modexpo_crt request. + * @zdev: pointer to zcrypt_device structure that identifies the + * PCICA device to the request distributor + * @crt: pointer to the modexpoc_crt request buffer + */ +static long zcrypt_pcica_modexpo_crt(struct zcrypt_device *zdev, + struct ica_rsa_modexpo_crt *crt) +{ + struct ap_message ap_msg; + struct completion work; + int rc; + + ap_msg.message = (void *) kmalloc(PCICA_MAX_MESSAGE_SIZE, GFP_KERNEL); + if (!ap_msg.message) + return -ENOMEM; + ap_msg.psmid = (((unsigned long long) current->pid) << 32) + + atomic_inc_return(&zcrypt_step); + ap_msg.private = &work; + rc = ICACRT_msg_to_type4CRT_msg(zdev, &ap_msg, crt); + if (rc) + goto out_free; + init_completion(&work); + ap_queue_message(zdev->ap_dev, &ap_msg); + rc = wait_for_completion_interruptible_timeout( + &work, PCICA_CLEANUP_TIME); + if (rc > 0) + rc = convert_response(zdev, &ap_msg, crt->outputdata, + crt->outputdatalength); + else { + /* Signal pending or message timed out. */ + ap_cancel_message(zdev->ap_dev, &ap_msg); + if (rc == 0) + /* Message timed out. */ + rc = -ETIME; + } +out_free: + kfree(ap_msg.message); + return rc; +} + +/** + * The crypto operations for a PCICA card. + */ +static struct zcrypt_ops zcrypt_pcica_ops = { + .rsa_modexpo = zcrypt_pcica_modexpo, + .rsa_modexpo_crt = zcrypt_pcica_modexpo_crt, +}; + +/** + * Probe function for PCICA cards. It always accepts the AP device + * since the bus_match already checked the hardware type. + * @ap_dev: pointer to the AP device. + */ +static int zcrypt_pcica_probe(struct ap_device *ap_dev) +{ + struct zcrypt_device *zdev; + int rc; + + zdev = zcrypt_device_alloc(PCICA_MAX_RESPONSE_SIZE); + if (!zdev) + return -ENOMEM; + zdev->ap_dev = ap_dev; + zdev->ops = &zcrypt_pcica_ops; + zdev->online = 1; + zdev->user_space_type = ZCRYPT_PCICA; + zdev->type_string = "PCICA"; + zdev->min_mod_size = PCICA_MIN_MOD_SIZE; + zdev->max_mod_size = PCICA_MAX_MOD_SIZE; + zdev->speed_rating = PCICA_SPEED_RATING; + ap_dev->reply = &zdev->reply; + ap_dev->private = zdev; + rc = zcrypt_device_register(zdev); + if (rc) + goto out_free; + return 0; + +out_free: + ap_dev->private = NULL; + zcrypt_device_free(zdev); + return rc; +} + +/** + * This is called to remove the extended PCICA driver information + * if an AP device is removed. + */ +static void zcrypt_pcica_remove(struct ap_device *ap_dev) +{ + struct zcrypt_device *zdev = ap_dev->private; + + zcrypt_device_unregister(zdev); +} + +int __init zcrypt_pcica_init(void) +{ + return ap_driver_register(&zcrypt_pcica_driver, THIS_MODULE, "pcica"); +} + +void zcrypt_pcica_exit(void) +{ + ap_driver_unregister(&zcrypt_pcica_driver); +} + +#ifndef CONFIG_ZCRYPT_MONOLITHIC +module_init(zcrypt_pcica_init); +module_exit(zcrypt_pcica_exit); +#endif diff --git a/drivers/s390/crypto/zcrypt_pcica.h b/drivers/s390/crypto/zcrypt_pcica.h new file mode 100644 index 00000000000..a08a4f8c33c --- /dev/null +++ b/drivers/s390/crypto/zcrypt_pcica.h @@ -0,0 +1,117 @@ +/* + * linux/drivers/s390/crypto/zcrypt_pcica.h + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _ZCRYPT_PCICA_H_ +#define _ZCRYPT_PCICA_H_ + +/** + * The type 4 message family is associated with a PCICA card. + * + * The four members of the family are described below. + * + * Note that all unsigned char arrays are right-justified and left-padded + * with zeroes. + * + * Note that all reserved fields must be zeroes. + */ +struct type4_hdr { + unsigned char reserved1; + unsigned char msg_type_code; /* 0x04 */ + unsigned short msg_len; + unsigned char request_code; /* 0x40 */ + unsigned char msg_fmt; + unsigned short reserved2; +} __attribute__((packed)); + +#define TYPE4_TYPE_CODE 0x04 +#define TYPE4_REQU_CODE 0x40 + +#define TYPE4_SME_FMT 0x00 +#define TYPE4_LME_FMT 0x10 +#define TYPE4_SCR_FMT 0x40 +#define TYPE4_LCR_FMT 0x50 + +/* Mod-Exp, with a small modulus */ +struct type4_sme { + struct type4_hdr header; + unsigned char message[128]; + unsigned char exponent[128]; + unsigned char modulus[128]; +} __attribute__((packed)); + +/* Mod-Exp, with a large modulus */ +struct type4_lme { + struct type4_hdr header; + unsigned char message[256]; + unsigned char exponent[256]; + unsigned char modulus[256]; +} __attribute__((packed)); + +/* CRT, with a small modulus */ +struct type4_scr { + struct type4_hdr header; + unsigned char message[128]; + unsigned char dp[72]; + unsigned char dq[64]; + unsigned char p[72]; + unsigned char q[64]; + unsigned char u[72]; +} __attribute__((packed)); + +/* CRT, with a large modulus */ +struct type4_lcr { + struct type4_hdr header; + unsigned char message[256]; + unsigned char dp[136]; + unsigned char dq[128]; + unsigned char p[136]; + unsigned char q[128]; + unsigned char u[136]; +} __attribute__((packed)); + +/** + * The type 84 response family is associated with a PCICA card. + * + * Note that all unsigned char arrays are right-justified and left-padded + * with zeroes. + * + * Note that all reserved fields must be zeroes. + */ + +struct type84_hdr { + unsigned char reserved1; + unsigned char code; + unsigned short len; + unsigned char reserved2[4]; +} __attribute__((packed)); + +#define TYPE84_RSP_CODE 0x84 + +int zcrypt_pcica_init(void); +void zcrypt_pcica_exit(void); + +#endif /* _ZCRYPT_PCICA_H_ */ -- cgit v1.2.3-70-g09d2 From 6684af1a07a1f88f3970bc90e5aed173d39168db Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:58:32 +0200 Subject: [S390] zcrypt PCICC, PCIXCC coprocessor card ap bus drivers. Signed-off-by: Ralph Wuerthner Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/zcrypt_cca_key.h | 350 +++++++++++++++++ drivers/s390/crypto/zcrypt_pcicc.c | 630 +++++++++++++++++++++++++++++++ drivers/s390/crypto/zcrypt_pcicc.h | 176 +++++++++ drivers/s390/crypto/zcrypt_pcixcc.c | 714 +++++++++++++++++++++++++++++++++++ drivers/s390/crypto/zcrypt_pcixcc.h | 79 ++++ 5 files changed, 1949 insertions(+) create mode 100644 drivers/s390/crypto/zcrypt_cca_key.h create mode 100644 drivers/s390/crypto/zcrypt_pcicc.c create mode 100644 drivers/s390/crypto/zcrypt_pcicc.h create mode 100644 drivers/s390/crypto/zcrypt_pcixcc.c create mode 100644 drivers/s390/crypto/zcrypt_pcixcc.h (limited to 'drivers') diff --git a/drivers/s390/crypto/zcrypt_cca_key.h b/drivers/s390/crypto/zcrypt_cca_key.h new file mode 100644 index 00000000000..c80f40d4419 --- /dev/null +++ b/drivers/s390/crypto/zcrypt_cca_key.h @@ -0,0 +1,350 @@ +/* + * linux/drivers/s390/crypto/zcrypt_cca_key.h + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _ZCRYPT_CCA_KEY_H_ +#define _ZCRYPT_CCA_KEY_H_ + +struct T6_keyBlock_hdr { + unsigned short blen; + unsigned short ulen; + unsigned short flags; +}; + +/** + * mapping for the cca private ME key token. + * Three parts of interest here: the header, the private section and + * the public section. + * + * mapping for the cca key token header + */ +struct cca_token_hdr { + unsigned char token_identifier; + unsigned char version; + unsigned short token_length; + unsigned char reserved[4]; +} __attribute__((packed)); + +#define CCA_TKN_HDR_ID_EXT 0x1E + +/** + * mapping for the cca private ME section + */ +struct cca_private_ext_ME_sec { + unsigned char section_identifier; + unsigned char version; + unsigned short section_length; + unsigned char private_key_hash[20]; + unsigned char reserved1[4]; + unsigned char key_format; + unsigned char reserved2; + unsigned char key_name_hash[20]; + unsigned char key_use_flags[4]; + unsigned char reserved3[6]; + unsigned char reserved4[24]; + unsigned char confounder[24]; + unsigned char exponent[128]; + unsigned char modulus[128]; +} __attribute__((packed)); + +#define CCA_PVT_USAGE_ALL 0x80 + +/** + * mapping for the cca public section + * In a private key, the modulus doesn't appear in the public + * section. So, an arbitrary public exponent of 0x010001 will be + * used, for a section length of 0x0F always. + */ +struct cca_public_sec { + unsigned char section_identifier; + unsigned char version; + unsigned short section_length; + unsigned char reserved[2]; + unsigned short exponent_len; + unsigned short modulus_bit_len; + unsigned short modulus_byte_len; /* In a private key, this is 0 */ +} __attribute__((packed)); + +/** + * mapping for the cca private CRT key 'token' + * The first three parts (the only parts considered in this release) + * are: the header, the private section and the public section. + * The header and public section are the same as for the + * struct cca_private_ext_ME + * + * Following the structure are the quantities p, q, dp, dq, u, pad, + * and modulus, in that order, where pad_len is the modulo 8 + * complement of the residue modulo 8 of the sum of + * (p_len + q_len + dp_len + dq_len + u_len). + */ +struct cca_pvt_ext_CRT_sec { + unsigned char section_identifier; + unsigned char version; + unsigned short section_length; + unsigned char private_key_hash[20]; + unsigned char reserved1[4]; + unsigned char key_format; + unsigned char reserved2; + unsigned char key_name_hash[20]; + unsigned char key_use_flags[4]; + unsigned short p_len; + unsigned short q_len; + unsigned short dp_len; + unsigned short dq_len; + unsigned short u_len; + unsigned short mod_len; + unsigned char reserved3[4]; + unsigned short pad_len; + unsigned char reserved4[52]; + unsigned char confounder[8]; +} __attribute__((packed)); + +#define CCA_PVT_EXT_CRT_SEC_ID_PVT 0x08 +#define CCA_PVT_EXT_CRT_SEC_FMT_CL 0x40 + +/** + * Set up private key fields of a type6 MEX message. + * Note that all numerics in the key token are big-endian, + * while the entries in the key block header are little-endian. + * + * @mex: pointer to user input data + * @p: pointer to memory area for the key + * + * Returns the size of the key area or -EFAULT + */ +static inline int zcrypt_type6_mex_key_de(struct ica_rsa_modexpo *mex, + void *p, int big_endian) +{ + static struct cca_token_hdr static_pvt_me_hdr = { + .token_identifier = 0x1E, + .token_length = 0x0183, + }; + static struct cca_private_ext_ME_sec static_pvt_me_sec = { + .section_identifier = 0x02, + .section_length = 0x016C, + .key_use_flags = {0x80,0x00,0x00,0x00}, + }; + static struct cca_public_sec static_pub_me_sec = { + .section_identifier = 0x04, + .section_length = 0x000F, + .exponent_len = 0x0003, + }; + static char pk_exponent[3] = { 0x01, 0x00, 0x01 }; + struct { + struct T6_keyBlock_hdr t6_hdr; + struct cca_token_hdr pvtMeHdr; + struct cca_private_ext_ME_sec pvtMeSec; + struct cca_public_sec pubMeSec; + char exponent[3]; + } __attribute__((packed)) *key = p; + unsigned char *temp; + + memset(key, 0, sizeof(*key)); + + if (big_endian) { + key->t6_hdr.blen = cpu_to_be16(0x189); + key->t6_hdr.ulen = cpu_to_be16(0x189 - 2); + } else { + key->t6_hdr.blen = cpu_to_le16(0x189); + key->t6_hdr.ulen = cpu_to_le16(0x189 - 2); + } + key->pvtMeHdr = static_pvt_me_hdr; + key->pvtMeSec = static_pvt_me_sec; + key->pubMeSec = static_pub_me_sec; + /** + * In a private key, the modulus doesn't appear in the public + * section. So, an arbitrary public exponent of 0x010001 will be + * used. + */ + memcpy(key->exponent, pk_exponent, 3); + + /* key parameter block */ + temp = key->pvtMeSec.exponent + + sizeof(key->pvtMeSec.exponent) - mex->inputdatalength; + if (copy_from_user(temp, mex->b_key, mex->inputdatalength)) + return -EFAULT; + + /* modulus */ + temp = key->pvtMeSec.modulus + + sizeof(key->pvtMeSec.modulus) - mex->inputdatalength; + if (copy_from_user(temp, mex->n_modulus, mex->inputdatalength)) + return -EFAULT; + key->pubMeSec.modulus_bit_len = 8 * mex->inputdatalength; + return sizeof(*key); +} + +/** + * Set up private key fields of a type6 MEX message. The _pad variant + * strips leading zeroes from the b_key. + * Note that all numerics in the key token are big-endian, + * while the entries in the key block header are little-endian. + * + * @mex: pointer to user input data + * @p: pointer to memory area for the key + * + * Returns the size of the key area or -EFAULT + */ +static inline int zcrypt_type6_mex_key_en(struct ica_rsa_modexpo *mex, + void *p, int big_endian) +{ + static struct cca_token_hdr static_pub_hdr = { + .token_identifier = 0x1E, + }; + static struct cca_public_sec static_pub_sec = { + .section_identifier = 0x04, + }; + struct { + struct T6_keyBlock_hdr t6_hdr; + struct cca_token_hdr pubHdr; + struct cca_public_sec pubSec; + char exponent[0]; + } __attribute__((packed)) *key = p; + unsigned char *temp; + int i; + + memset(key, 0, sizeof(*key)); + + key->pubHdr = static_pub_hdr; + key->pubSec = static_pub_sec; + + /* key parameter block */ + temp = key->exponent; + if (copy_from_user(temp, mex->b_key, mex->inputdatalength)) + return -EFAULT; + /* Strip leading zeroes from b_key. */ + for (i = 0; i < mex->inputdatalength; i++) + if (temp[i]) + break; + if (i >= mex->inputdatalength) + return -EINVAL; + memmove(temp, temp + i, mex->inputdatalength - i); + temp += mex->inputdatalength - i; + /* modulus */ + if (copy_from_user(temp, mex->n_modulus, mex->inputdatalength)) + return -EFAULT; + + key->pubSec.modulus_bit_len = 8 * mex->inputdatalength; + key->pubSec.modulus_byte_len = mex->inputdatalength; + key->pubSec.exponent_len = mex->inputdatalength - i; + key->pubSec.section_length = sizeof(key->pubSec) + + 2*mex->inputdatalength - i; + key->pubHdr.token_length = + key->pubSec.section_length + sizeof(key->pubHdr); + if (big_endian) { + key->t6_hdr.ulen = cpu_to_be16(key->pubHdr.token_length + 4); + key->t6_hdr.blen = cpu_to_be16(key->pubHdr.token_length + 6); + } else { + key->t6_hdr.ulen = cpu_to_le16(key->pubHdr.token_length + 4); + key->t6_hdr.blen = cpu_to_le16(key->pubHdr.token_length + 6); + } + return sizeof(*key) + 2*mex->inputdatalength - i; +} + +/** + * Set up private key fields of a type6 CRT message. + * Note that all numerics in the key token are big-endian, + * while the entries in the key block header are little-endian. + * + * @mex: pointer to user input data + * @p: pointer to memory area for the key + * + * Returns the size of the key area or -EFAULT + */ +static inline int zcrypt_type6_crt_key(struct ica_rsa_modexpo_crt *crt, + void *p, int big_endian) +{ + static struct cca_public_sec static_cca_pub_sec = { + .section_identifier = 4, + .section_length = 0x000f, + .exponent_len = 0x0003, + }; + static char pk_exponent[3] = { 0x01, 0x00, 0x01 }; + struct { + struct T6_keyBlock_hdr t6_hdr; + struct cca_token_hdr token; + struct cca_pvt_ext_CRT_sec pvt; + char key_parts[0]; + } __attribute__((packed)) *key = p; + struct cca_public_sec *pub; + int short_len, long_len, pad_len, key_len, size; + + memset(key, 0, sizeof(*key)); + + short_len = crt->inputdatalength / 2; + long_len = short_len + 8; + pad_len = -(3*long_len + 2*short_len) & 7; + key_len = 3*long_len + 2*short_len + pad_len + crt->inputdatalength; + size = sizeof(*key) + key_len + sizeof(*pub) + 3; + + /* parameter block.key block */ + if (big_endian) { + key->t6_hdr.blen = cpu_to_be16(size); + key->t6_hdr.ulen = cpu_to_be16(size - 2); + } else { + key->t6_hdr.blen = cpu_to_le16(size); + key->t6_hdr.ulen = cpu_to_le16(size - 2); + } + + /* key token header */ + key->token.token_identifier = CCA_TKN_HDR_ID_EXT; + key->token.token_length = size - 6; + + /* private section */ + key->pvt.section_identifier = CCA_PVT_EXT_CRT_SEC_ID_PVT; + key->pvt.section_length = sizeof(key->pvt) + key_len; + key->pvt.key_format = CCA_PVT_EXT_CRT_SEC_FMT_CL; + key->pvt.key_use_flags[0] = CCA_PVT_USAGE_ALL; + key->pvt.p_len = key->pvt.dp_len = key->pvt.u_len = long_len; + key->pvt.q_len = key->pvt.dq_len = short_len; + key->pvt.mod_len = crt->inputdatalength; + key->pvt.pad_len = pad_len; + + /* key parts */ + if (copy_from_user(key->key_parts, crt->np_prime, long_len) || + copy_from_user(key->key_parts + long_len, + crt->nq_prime, short_len) || + copy_from_user(key->key_parts + long_len + short_len, + crt->bp_key, long_len) || + copy_from_user(key->key_parts + 2*long_len + short_len, + crt->bq_key, short_len) || + copy_from_user(key->key_parts + 2*long_len + 2*short_len, + crt->u_mult_inv, long_len)) + return -EFAULT; + memset(key->key_parts + 3*long_len + 2*short_len + pad_len, + 0xff, crt->inputdatalength); + pub = (struct cca_public_sec *)(key->key_parts + key_len); + *pub = static_cca_pub_sec; + pub->modulus_bit_len = 8 * crt->inputdatalength; + /** + * In a private key, the modulus doesn't appear in the public + * section. So, an arbitrary public exponent of 0x010001 will be + * used. + */ + memcpy((char *) (pub + 1), pk_exponent, 3); + return size; +} + +#endif /* _ZCRYPT_CCA_KEY_H_ */ diff --git a/drivers/s390/crypto/zcrypt_pcicc.c b/drivers/s390/crypto/zcrypt_pcicc.c new file mode 100644 index 00000000000..900362983fe --- /dev/null +++ b/drivers/s390/crypto/zcrypt_pcicc.c @@ -0,0 +1,630 @@ +/* + * linux/drivers/s390/crypto/zcrypt_pcicc.c + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * Ralph Wuerthner + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include + +#include "ap_bus.h" +#include "zcrypt_api.h" +#include "zcrypt_error.h" +#include "zcrypt_pcicc.h" +#include "zcrypt_cca_key.h" + +#define PCICC_MIN_MOD_SIZE 64 /* 512 bits */ +#define PCICC_MAX_MOD_SIZE_OLD 128 /* 1024 bits */ +#define PCICC_MAX_MOD_SIZE 256 /* 2048 bits */ + +/** + * PCICC cards need a speed rating of 0. This keeps them at the end of + * the zcrypt device list (see zcrypt_api.c). PCICC cards are only + * used if no other cards are present because they are slow and can only + * cope with PKCS12 padded requests. The logic is queer. PKCS11 padded + * requests are rejected. The modexpo function encrypts PKCS12 padded data + * and decrypts any non-PKCS12 padded data (except PKCS11) in the assumption + * that it's encrypted PKCS12 data. The modexpo_crt function always decrypts + * the data in the assumption that its PKCS12 encrypted data. + */ +#define PCICC_SPEED_RATING 0 + +#define PCICC_MAX_MESSAGE_SIZE 0x710 /* max size type6 v1 crt message */ +#define PCICC_MAX_RESPONSE_SIZE 0x710 /* max size type86 v1 reply */ + +#define PCICC_CLEANUP_TIME (15*HZ) + +static struct ap_device_id zcrypt_pcicc_ids[] = { + { AP_DEVICE(AP_DEVICE_TYPE_PCICC) }, + { /* end of list */ }, +}; + +#ifndef CONFIG_ZCRYPT_MONOLITHIC +MODULE_DEVICE_TABLE(ap, zcrypt_pcicc_ids); +MODULE_AUTHOR("IBM Corporation"); +MODULE_DESCRIPTION("PCICC Cryptographic Coprocessor device driver, " + "Copyright 2001, 2006 IBM Corporation"); +MODULE_LICENSE("GPL"); +#endif + +static int zcrypt_pcicc_probe(struct ap_device *ap_dev); +static void zcrypt_pcicc_remove(struct ap_device *ap_dev); +static void zcrypt_pcicc_receive(struct ap_device *, struct ap_message *, + struct ap_message *); + +static struct ap_driver zcrypt_pcicc_driver = { + .probe = zcrypt_pcicc_probe, + .remove = zcrypt_pcicc_remove, + .receive = zcrypt_pcicc_receive, + .ids = zcrypt_pcicc_ids, +}; + +/** + * The following is used to initialize the CPRB passed to the PCICC card + * in a type6 message. The 3 fields that must be filled in at execution + * time are req_parml, rpl_parml and usage_domain. Note that all three + * fields are *little*-endian. Actually, everything about this interface + * is ascii/little-endian, since the device has 'Intel inside'. + * + * The CPRB is followed immediately by the parm block. + * The parm block contains: + * - function code ('PD' 0x5044 or 'PK' 0x504B) + * - rule block (0x0A00 'PKCS-1.2' or 0x0A00 'ZERO-PAD') + * - VUD block + */ +static struct CPRB static_cprb = { + .cprb_len = __constant_cpu_to_le16(0x0070), + .cprb_ver_id = 0x41, + .func_id = {0x54,0x32}, + .checkpoint_flag= 0x01, + .svr_namel = __constant_cpu_to_le16(0x0008), + .svr_name = {'I','C','S','F',' ',' ',' ',' '} +}; + +/** + * Check the message for PKCS11 padding. + */ +static inline int is_PKCS11_padded(unsigned char *buffer, int length) +{ + int i; + if ((buffer[0] != 0x00) || (buffer[1] != 0x01)) + return 0; + for (i = 2; i < length; i++) + if (buffer[i] != 0xFF) + break; + if (i < 10 || i == length) + return 0; + if (buffer[i] != 0x00) + return 0; + return 1; +} + +/** + * Check the message for PKCS12 padding. + */ +static inline int is_PKCS12_padded(unsigned char *buffer, int length) +{ + int i; + if ((buffer[0] != 0x00) || (buffer[1] != 0x02)) + return 0; + for (i = 2; i < length; i++) + if (buffer[i] == 0x00) + break; + if ((i < 10) || (i == length)) + return 0; + if (buffer[i] != 0x00) + return 0; + return 1; +} + +/** + * Convert a ICAMEX message to a type6 MEX message. + * + * @zdev: crypto device pointer + * @zreq: crypto request pointer + * @mex: pointer to user input data + * + * Returns 0 on success or -EFAULT. + */ +static int ICAMEX_msg_to_type6MEX_msg(struct zcrypt_device *zdev, + struct ap_message *ap_msg, + struct ica_rsa_modexpo *mex) +{ + static struct type6_hdr static_type6_hdr = { + .type = 0x06, + .offset1 = 0x00000058, + .agent_id = {0x01,0x00,0x43,0x43,0x41,0x2D,0x41,0x50, + 0x50,0x4C,0x20,0x20,0x20,0x01,0x01,0x01}, + .function_code = {'P','K'}, + }; + static struct function_and_rules_block static_pke_function_and_rules ={ + .function_code = {'P','K'}, + .ulen = __constant_cpu_to_le16(10), + .only_rule = {'P','K','C','S','-','1','.','2'} + }; + struct { + struct type6_hdr hdr; + struct CPRB cprb; + struct function_and_rules_block fr; + unsigned short length; + char text[0]; + } __attribute__((packed)) *msg = ap_msg->message; + int vud_len, pad_len, size; + + /* VUD.ciphertext */ + if (copy_from_user(msg->text, mex->inputdata, mex->inputdatalength)) + return -EFAULT; + + if (is_PKCS11_padded(msg->text, mex->inputdatalength)) + return -EINVAL; + + /* static message header and f&r */ + msg->hdr = static_type6_hdr; + msg->fr = static_pke_function_and_rules; + + if (is_PKCS12_padded(msg->text, mex->inputdatalength)) { + /* strip the padding and adjust the data length */ + pad_len = strnlen(msg->text + 2, mex->inputdatalength - 2) + 3; + if (pad_len <= 9 || pad_len >= mex->inputdatalength) + return -ENODEV; + vud_len = mex->inputdatalength - pad_len; + memmove(msg->text, msg->text + pad_len, vud_len); + msg->length = cpu_to_le16(vud_len + 2); + + /* Set up key after the variable length text. */ + size = zcrypt_type6_mex_key_en(mex, msg->text + vud_len, 0); + if (size < 0) + return size; + size += sizeof(*msg) + vud_len; /* total size of msg */ + } else { + vud_len = mex->inputdatalength; + msg->length = cpu_to_le16(2 + vud_len); + + msg->hdr.function_code[1] = 'D'; + msg->fr.function_code[1] = 'D'; + + /* Set up key after the variable length text. */ + size = zcrypt_type6_mex_key_de(mex, msg->text + vud_len, 0); + if (size < 0) + return size; + size += sizeof(*msg) + vud_len; /* total size of msg */ + } + + /* message header, cprb and f&r */ + msg->hdr.ToCardLen1 = (size - sizeof(msg->hdr) + 3) & -4; + msg->hdr.FromCardLen1 = PCICC_MAX_RESPONSE_SIZE - sizeof(msg->hdr); + + msg->cprb = static_cprb; + msg->cprb.usage_domain[0]= AP_QID_QUEUE(zdev->ap_dev->qid); + msg->cprb.req_parml = cpu_to_le16(size - sizeof(msg->hdr) - + sizeof(msg->cprb)); + msg->cprb.rpl_parml = cpu_to_le16(msg->hdr.FromCardLen1); + + ap_msg->length = (size + 3) & -4; + return 0; +} + +/** + * Convert a ICACRT message to a type6 CRT message. + * + * @zdev: crypto device pointer + * @zreq: crypto request pointer + * @crt: pointer to user input data + * + * Returns 0 on success or -EFAULT. + */ +static int ICACRT_msg_to_type6CRT_msg(struct zcrypt_device *zdev, + struct ap_message *ap_msg, + struct ica_rsa_modexpo_crt *crt) +{ + static struct type6_hdr static_type6_hdr = { + .type = 0x06, + .offset1 = 0x00000058, + .agent_id = {0x01,0x00,0x43,0x43,0x41,0x2D,0x41,0x50, + 0x50,0x4C,0x20,0x20,0x20,0x01,0x01,0x01}, + .function_code = {'P','D'}, + }; + static struct function_and_rules_block static_pkd_function_and_rules ={ + .function_code = {'P','D'}, + .ulen = __constant_cpu_to_le16(10), + .only_rule = {'P','K','C','S','-','1','.','2'} + }; + struct { + struct type6_hdr hdr; + struct CPRB cprb; + struct function_and_rules_block fr; + unsigned short length; + char text[0]; + } __attribute__((packed)) *msg = ap_msg->message; + int size; + + /* VUD.ciphertext */ + msg->length = cpu_to_le16(2 + crt->inputdatalength); + if (copy_from_user(msg->text, crt->inputdata, crt->inputdatalength)) + return -EFAULT; + + if (is_PKCS11_padded(msg->text, crt->inputdatalength)) + return -EINVAL; + + /* Set up key after the variable length text. */ + size = zcrypt_type6_crt_key(crt, msg->text + crt->inputdatalength, 0); + if (size < 0) + return size; + size += sizeof(*msg) + crt->inputdatalength; /* total size of msg */ + + /* message header, cprb and f&r */ + msg->hdr = static_type6_hdr; + msg->hdr.ToCardLen1 = (size - sizeof(msg->hdr) + 3) & -4; + msg->hdr.FromCardLen1 = PCICC_MAX_RESPONSE_SIZE - sizeof(msg->hdr); + + msg->cprb = static_cprb; + msg->cprb.usage_domain[0] = AP_QID_QUEUE(zdev->ap_dev->qid); + msg->cprb.req_parml = msg->cprb.rpl_parml = + cpu_to_le16(size - sizeof(msg->hdr) - sizeof(msg->cprb)); + + msg->fr = static_pkd_function_and_rules; + + ap_msg->length = (size + 3) & -4; + return 0; +} + +/** + * Copy results from a type 86 reply message back to user space. + * + * @zdev: crypto device pointer + * @reply: reply AP message. + * @data: pointer to user output data + * @length: size of user output data + * + * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error. + */ +struct type86_reply { + struct type86_hdr hdr; + struct type86_fmt2_ext fmt2; + struct CPRB cprb; + unsigned char pad[4]; /* 4 byte function code/rules block ? */ + unsigned short length; + char text[0]; +} __attribute__((packed)); + +static int convert_type86(struct zcrypt_device *zdev, + struct ap_message *reply, + char __user *outputdata, + unsigned int outputdatalength) +{ + static unsigned char static_pad[] = { + 0x00,0x02, + 0x1B,0x7B,0x5D,0xB5,0x75,0x01,0x3D,0xFD, + 0x8D,0xD1,0xC7,0x03,0x2D,0x09,0x23,0x57, + 0x89,0x49,0xB9,0x3F,0xBB,0x99,0x41,0x5B, + 0x75,0x21,0x7B,0x9D,0x3B,0x6B,0x51,0x39, + 0xBB,0x0D,0x35,0xB9,0x89,0x0F,0x93,0xA5, + 0x0B,0x47,0xF1,0xD3,0xBB,0xCB,0xF1,0x9D, + 0x23,0x73,0x71,0xFF,0xF3,0xF5,0x45,0xFB, + 0x61,0x29,0x23,0xFD,0xF1,0x29,0x3F,0x7F, + 0x17,0xB7,0x1B,0xA9,0x19,0xBD,0x57,0xA9, + 0xD7,0x95,0xA3,0xCB,0xED,0x1D,0xDB,0x45, + 0x7D,0x11,0xD1,0x51,0x1B,0xED,0x71,0xE9, + 0xB1,0xD1,0xAB,0xAB,0x21,0x2B,0x1B,0x9F, + 0x3B,0x9F,0xF7,0xF7,0xBD,0x63,0xEB,0xAD, + 0xDF,0xB3,0x6F,0x5B,0xDB,0x8D,0xA9,0x5D, + 0xE3,0x7D,0x77,0x49,0x47,0xF5,0xA7,0xFD, + 0xAB,0x2F,0x27,0x35,0x77,0xD3,0x49,0xC9, + 0x09,0xEB,0xB1,0xF9,0xBF,0x4B,0xCB,0x2B, + 0xEB,0xEB,0x05,0xFF,0x7D,0xC7,0x91,0x8B, + 0x09,0x83,0xB9,0xB9,0x69,0x33,0x39,0x6B, + 0x79,0x75,0x19,0xBF,0xBB,0x07,0x1D,0xBD, + 0x29,0xBF,0x39,0x95,0x93,0x1D,0x35,0xC7, + 0xC9,0x4D,0xE5,0x97,0x0B,0x43,0x9B,0xF1, + 0x16,0x93,0x03,0x1F,0xA5,0xFB,0xDB,0xF3, + 0x27,0x4F,0x27,0x61,0x05,0x1F,0xB9,0x23, + 0x2F,0xC3,0x81,0xA9,0x23,0x71,0x55,0x55, + 0xEB,0xED,0x41,0xE5,0xF3,0x11,0xF1,0x43, + 0x69,0x03,0xBD,0x0B,0x37,0x0F,0x51,0x8F, + 0x0B,0xB5,0x89,0x5B,0x67,0xA9,0xD9,0x4F, + 0x01,0xF9,0x21,0x77,0x37,0x73,0x79,0xC5, + 0x7F,0x51,0xC1,0xCF,0x97,0xA1,0x75,0xAD, + 0x35,0x9D,0xD3,0xD3,0xA7,0x9D,0x5D,0x41, + 0x6F,0x65,0x1B,0xCF,0xA9,0x87,0x91,0x09 + }; + struct type86_reply *msg = reply->message; + unsigned short service_rc, service_rs; + unsigned int reply_len, pad_len; + char *data; + + service_rc = le16_to_cpu(msg->cprb.ccp_rtcode); + if (unlikely(service_rc != 0)) { + service_rs = le16_to_cpu(msg->cprb.ccp_rscode); + if (service_rc == 8 && service_rs == 66) { + PDEBUG("Bad block format on PCICC\n"); + return -EINVAL; + } + if (service_rc == 8 && service_rs == 65) { + PDEBUG("Probably an even modulus on PCICC\n"); + return -EINVAL; + } + if (service_rc == 8 && service_rs == 770) { + PDEBUG("Invalid key length on PCICC\n"); + zdev->max_mod_size = PCICC_MAX_MOD_SIZE_OLD; + return -EAGAIN; + } + if (service_rc == 8 && service_rs == 783) { + PDEBUG("Extended bitlengths not enabled on PCICC\n"); + zdev->max_mod_size = PCICC_MAX_MOD_SIZE_OLD; + return -EAGAIN; + } + PRINTK("Unknown service rc/rs (PCICC): %d/%d\n", + service_rc, service_rs); + zdev->online = 0; + return -EAGAIN; /* repeat the request on a different device. */ + } + data = msg->text; + reply_len = le16_to_cpu(msg->length) - 2; + if (reply_len > outputdatalength) + return -EINVAL; + /** + * For all encipher requests, the length of the ciphertext (reply_len) + * will always equal the modulus length. For MEX decipher requests + * the output needs to get padded. Minimum pad size is 10. + * + * Currently, the cases where padding will be added is for: + * - PCIXCC_MCL2 using a CRT form token (since PKD didn't support + * ZERO-PAD and CRT is only supported for PKD requests) + * - PCICC, always + */ + pad_len = outputdatalength - reply_len; + if (pad_len > 0) { + if (pad_len < 10) + return -EINVAL; + /* 'restore' padding left in the PCICC/PCIXCC card. */ + if (copy_to_user(outputdata, static_pad, pad_len - 1)) + return -EFAULT; + if (put_user(0, outputdata + pad_len - 1)) + return -EFAULT; + } + /* Copy the crypto response to user space. */ + if (copy_to_user(outputdata + pad_len, data, reply_len)) + return -EFAULT; + return 0; +} + +static int convert_response(struct zcrypt_device *zdev, + struct ap_message *reply, + char __user *outputdata, + unsigned int outputdatalength) +{ + struct type86_reply *msg = reply->message; + + /* Response type byte is the second byte in the response. */ + switch (msg->hdr.type) { + case TYPE82_RSP_CODE: + case TYPE88_RSP_CODE: + return convert_error(zdev, reply); + case TYPE86_RSP_CODE: + if (msg->hdr.reply_code) + return convert_error(zdev, reply); + if (msg->cprb.cprb_ver_id == 0x01) + return convert_type86(zdev, reply, + outputdata, outputdatalength); + /* no break, incorrect cprb version is an unknown response */ + default: /* Unknown response type, this should NEVER EVER happen */ + PRINTK("Unrecognized Message Header: %08x%08x\n", + *(unsigned int *) reply->message, + *(unsigned int *) (reply->message+4)); + zdev->online = 0; + return -EAGAIN; /* repeat the request on a different device. */ + } +} + +/** + * This function is called from the AP bus code after a crypto request + * "msg" has finished with the reply message "reply". + * It is called from tasklet context. + * @ap_dev: pointer to the AP device + * @msg: pointer to the AP message + * @reply: pointer to the AP reply message + */ +static void zcrypt_pcicc_receive(struct ap_device *ap_dev, + struct ap_message *msg, + struct ap_message *reply) +{ + static struct error_hdr error_reply = { + .type = TYPE82_RSP_CODE, + .reply_code = REP82_ERROR_MACHINE_FAILURE, + }; + struct type86_reply *t86r = reply->message; + int length; + + /* Copy the reply message to the request message buffer. */ + if (IS_ERR(reply)) + memcpy(msg->message, &error_reply, sizeof(error_reply)); + else if (t86r->hdr.type == TYPE86_RSP_CODE && + t86r->cprb.cprb_ver_id == 0x01) { + length = sizeof(struct type86_reply) + t86r->length - 2; + length = min(PCICC_MAX_RESPONSE_SIZE, length); + memcpy(msg->message, reply->message, length); + } else + memcpy(msg->message, reply->message, sizeof error_reply); + complete((struct completion *) msg->private); +} + +static atomic_t zcrypt_step = ATOMIC_INIT(0); + +/** + * The request distributor calls this function if it picked the PCICC + * device to handle a modexpo request. + * @zdev: pointer to zcrypt_device structure that identifies the + * PCICC device to the request distributor + * @mex: pointer to the modexpo request buffer + */ +static long zcrypt_pcicc_modexpo(struct zcrypt_device *zdev, + struct ica_rsa_modexpo *mex) +{ + struct ap_message ap_msg; + struct completion work; + int rc; + + ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); + if (!ap_msg.message) + return -ENOMEM; + ap_msg.length = PAGE_SIZE; + ap_msg.psmid = (((unsigned long long) current->pid) << 32) + + atomic_inc_return(&zcrypt_step); + ap_msg.private = &work; + rc = ICAMEX_msg_to_type6MEX_msg(zdev, &ap_msg, mex); + if (rc) + goto out_free; + init_completion(&work); + ap_queue_message(zdev->ap_dev, &ap_msg); + rc = wait_for_completion_interruptible_timeout( + &work, PCICC_CLEANUP_TIME); + if (rc > 0) + rc = convert_response(zdev, &ap_msg, mex->outputdata, + mex->outputdatalength); + else { + /* Signal pending or message timed out. */ + ap_cancel_message(zdev->ap_dev, &ap_msg); + if (rc == 0) + /* Message timed out. */ + rc = -ETIME; + } +out_free: + free_page((unsigned long) ap_msg.message); + return rc; +} + +/** + * The request distributor calls this function if it picked the PCICC + * device to handle a modexpo_crt request. + * @zdev: pointer to zcrypt_device structure that identifies the + * PCICC device to the request distributor + * @crt: pointer to the modexpoc_crt request buffer + */ +static long zcrypt_pcicc_modexpo_crt(struct zcrypt_device *zdev, + struct ica_rsa_modexpo_crt *crt) +{ + struct ap_message ap_msg; + struct completion work; + int rc; + + ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); + if (!ap_msg.message) + return -ENOMEM; + ap_msg.length = PAGE_SIZE; + ap_msg.psmid = (((unsigned long long) current->pid) << 32) + + atomic_inc_return(&zcrypt_step); + ap_msg.private = &work; + rc = ICACRT_msg_to_type6CRT_msg(zdev, &ap_msg, crt); + if (rc) + goto out_free; + init_completion(&work); + ap_queue_message(zdev->ap_dev, &ap_msg); + rc = wait_for_completion_interruptible_timeout( + &work, PCICC_CLEANUP_TIME); + if (rc > 0) + rc = convert_response(zdev, &ap_msg, crt->outputdata, + crt->outputdatalength); + else { + /* Signal pending or message timed out. */ + ap_cancel_message(zdev->ap_dev, &ap_msg); + if (rc == 0) + /* Message timed out. */ + rc = -ETIME; + } +out_free: + free_page((unsigned long) ap_msg.message); + return rc; +} + +/** + * The crypto operations for a PCICC card. + */ +static struct zcrypt_ops zcrypt_pcicc_ops = { + .rsa_modexpo = zcrypt_pcicc_modexpo, + .rsa_modexpo_crt = zcrypt_pcicc_modexpo_crt, +}; + +/** + * Probe function for PCICC cards. It always accepts the AP device + * since the bus_match already checked the hardware type. + * @ap_dev: pointer to the AP device. + */ +static int zcrypt_pcicc_probe(struct ap_device *ap_dev) +{ + struct zcrypt_device *zdev; + int rc; + + zdev = zcrypt_device_alloc(PCICC_MAX_RESPONSE_SIZE); + if (!zdev) + return -ENOMEM; + zdev->ap_dev = ap_dev; + zdev->ops = &zcrypt_pcicc_ops; + zdev->online = 1; + zdev->user_space_type = ZCRYPT_PCICC; + zdev->type_string = "PCICC"; + zdev->min_mod_size = PCICC_MIN_MOD_SIZE; + zdev->max_mod_size = PCICC_MAX_MOD_SIZE; + zdev->speed_rating = PCICC_SPEED_RATING; + ap_dev->reply = &zdev->reply; + ap_dev->private = zdev; + rc = zcrypt_device_register(zdev); + if (rc) + goto out_free; + return 0; + + out_free: + ap_dev->private = NULL; + zcrypt_device_free(zdev); + return rc; +} + +/** + * This is called to remove the extended PCICC driver information + * if an AP device is removed. + */ +static void zcrypt_pcicc_remove(struct ap_device *ap_dev) +{ + struct zcrypt_device *zdev = ap_dev->private; + + zcrypt_device_unregister(zdev); +} + +int __init zcrypt_pcicc_init(void) +{ + return ap_driver_register(&zcrypt_pcicc_driver, THIS_MODULE, "pcicc"); +} + +void zcrypt_pcicc_exit(void) +{ + ap_driver_unregister(&zcrypt_pcicc_driver); +} + +#ifndef CONFIG_ZCRYPT_MONOLITHIC +module_init(zcrypt_pcicc_init); +module_exit(zcrypt_pcicc_exit); +#endif diff --git a/drivers/s390/crypto/zcrypt_pcicc.h b/drivers/s390/crypto/zcrypt_pcicc.h new file mode 100644 index 00000000000..027bafc7312 --- /dev/null +++ b/drivers/s390/crypto/zcrypt_pcicc.h @@ -0,0 +1,176 @@ +/* + * linux/drivers/s390/crypto/zcrypt_pcicc.h + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _ZCRYPT_PCICC_H_ +#define _ZCRYPT_PCICC_H_ + +/** + * The type 6 message family is associated with PCICC or PCIXCC cards. + * + * It contains a message header followed by a CPRB, both of which + * are described below. + * + * Note that all reserved fields must be zeroes. + */ +struct type6_hdr { + unsigned char reserved1; /* 0x00 */ + unsigned char type; /* 0x06 */ + unsigned char reserved2[2]; /* 0x0000 */ + unsigned char right[4]; /* 0x00000000 */ + unsigned char reserved3[2]; /* 0x0000 */ + unsigned char reserved4[2]; /* 0x0000 */ + unsigned char apfs[4]; /* 0x00000000 */ + unsigned int offset1; /* 0x00000058 (offset to CPRB) */ + unsigned int offset2; /* 0x00000000 */ + unsigned int offset3; /* 0x00000000 */ + unsigned int offset4; /* 0x00000000 */ + unsigned char agent_id[16]; /* PCICC: */ + /* 0x0100 */ + /* 0x4343412d4150504c202020 */ + /* 0x010101 */ + /* PCIXCC: */ + /* 0x4341000000000000 */ + /* 0x0000000000000000 */ + unsigned char rqid[2]; /* rqid. internal to 603 */ + unsigned char reserved5[2]; /* 0x0000 */ + unsigned char function_code[2]; /* for PKD, 0x5044 (ascii 'PD') */ + unsigned char reserved6[2]; /* 0x0000 */ + unsigned int ToCardLen1; /* (request CPRB len + 3) & -4 */ + unsigned int ToCardLen2; /* db len 0x00000000 for PKD */ + unsigned int ToCardLen3; /* 0x00000000 */ + unsigned int ToCardLen4; /* 0x00000000 */ + unsigned int FromCardLen1; /* response buffer length */ + unsigned int FromCardLen2; /* db len 0x00000000 for PKD */ + unsigned int FromCardLen3; /* 0x00000000 */ + unsigned int FromCardLen4; /* 0x00000000 */ +} __attribute__((packed)); + +/** + * CPRB + * Note that all shorts, ints and longs are little-endian. + * All pointer fields are 32-bits long, and mean nothing + * + * A request CPRB is followed by a request_parameter_block. + * + * The request (or reply) parameter block is organized thus: + * function code + * VUD block + * key block + */ +struct CPRB { + unsigned short cprb_len; /* CPRB length */ + unsigned char cprb_ver_id; /* CPRB version id. */ + unsigned char pad_000; /* Alignment pad byte. */ + unsigned char srpi_rtcode[4]; /* SRPI return code LELONG */ + unsigned char srpi_verb; /* SRPI verb type */ + unsigned char flags; /* flags */ + unsigned char func_id[2]; /* function id */ + unsigned char checkpoint_flag; /* */ + unsigned char resv2; /* reserved */ + unsigned short req_parml; /* request parameter buffer */ + /* length 16-bit little endian */ + unsigned char req_parmp[4]; /* request parameter buffer * + * pointer (means nothing: the * + * parameter buffer follows * + * the CPRB). */ + unsigned char req_datal[4]; /* request data buffer */ + /* length ULELONG */ + unsigned char req_datap[4]; /* request data buffer */ + /* pointer */ + unsigned short rpl_parml; /* reply parameter buffer */ + /* length 16-bit little endian */ + unsigned char pad_001[2]; /* Alignment pad bytes. ULESHORT */ + unsigned char rpl_parmp[4]; /* reply parameter buffer * + * pointer (means nothing: the * + * parameter buffer follows * + * the CPRB). */ + unsigned char rpl_datal[4]; /* reply data buffer len ULELONG */ + unsigned char rpl_datap[4]; /* reply data buffer */ + /* pointer */ + unsigned short ccp_rscode; /* server reason code ULESHORT */ + unsigned short ccp_rtcode; /* server return code ULESHORT */ + unsigned char repd_parml[2]; /* replied parameter len ULESHORT*/ + unsigned char mac_data_len[2]; /* Mac Data Length ULESHORT */ + unsigned char repd_datal[4]; /* replied data length ULELONG */ + unsigned char req_pc[2]; /* PC identifier */ + unsigned char res_origin[8]; /* resource origin */ + unsigned char mac_value[8]; /* Mac Value */ + unsigned char logon_id[8]; /* Logon Identifier */ + unsigned char usage_domain[2]; /* cdx */ + unsigned char resv3[18]; /* reserved for requestor */ + unsigned short svr_namel; /* server name length ULESHORT */ + unsigned char svr_name[8]; /* server name */ +} __attribute__((packed)); + +/** + * The type 86 message family is associated with PCICC and PCIXCC cards. + * + * It contains a message header followed by a CPRB. The CPRB is + * the same as the request CPRB, which is described above. + * + * If format is 1, an error condition exists and no data beyond + * the 8-byte message header is of interest. + * + * The non-error message is shown below. + * + * Note that all reserved fields must be zeroes. + */ +struct type86_hdr { + unsigned char reserved1; /* 0x00 */ + unsigned char type; /* 0x86 */ + unsigned char format; /* 0x01 (error) or 0x02 (ok) */ + unsigned char reserved2; /* 0x00 */ + unsigned char reply_code; /* reply code (see above) */ + unsigned char reserved3[3]; /* 0x000000 */ +} __attribute__((packed)); + +#define TYPE86_RSP_CODE 0x86 +#define TYPE86_FMT2 0x02 + +struct type86_fmt2_ext { + unsigned char reserved[4]; /* 0x00000000 */ + unsigned char apfs[4]; /* final status */ + unsigned int count1; /* length of CPRB + parameters */ + unsigned int offset1; /* offset to CPRB */ + unsigned int count2; /* 0x00000000 */ + unsigned int offset2; /* db offset 0x00000000 for PKD */ + unsigned int count3; /* 0x00000000 */ + unsigned int offset3; /* 0x00000000 */ + unsigned int count4; /* 0x00000000 */ + unsigned int offset4; /* 0x00000000 */ +} __attribute__((packed)); + +struct function_and_rules_block { + unsigned char function_code[2]; + unsigned short ulen; + unsigned char only_rule[8]; +} __attribute__((packed)); + +int zcrypt_pcicc_init(void); +void zcrypt_pcicc_exit(void); + +#endif /* _ZCRYPT_PCICC_H_ */ diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c new file mode 100644 index 00000000000..6064cf58be4 --- /dev/null +++ b/drivers/s390/crypto/zcrypt_pcixcc.c @@ -0,0 +1,714 @@ +/* + * linux/drivers/s390/crypto/zcrypt_pcixcc.c + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * Ralph Wuerthner + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include + +#include "ap_bus.h" +#include "zcrypt_api.h" +#include "zcrypt_error.h" +#include "zcrypt_pcicc.h" +#include "zcrypt_pcixcc.h" +#include "zcrypt_cca_key.h" + +#define PCIXCC_MIN_MOD_SIZE 16 /* 128 bits */ +#define PCIXCC_MIN_MOD_SIZE_OLD 64 /* 512 bits */ +#define PCIXCC_MAX_MOD_SIZE 256 /* 2048 bits */ + +#define PCIXCC_MCL2_SPEED_RATING 7870 /* FIXME: needs finetuning */ +#define PCIXCC_MCL3_SPEED_RATING 7870 +#define CEX2C_SPEED_RATING 8540 + +#define PCIXCC_MAX_ICA_MESSAGE_SIZE 0x77c /* max size type6 v2 crt message */ +#define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply */ + +#define PCIXCC_MAX_XCRB_MESSAGE_SIZE (12*1024) +#define PCIXCC_MAX_XCRB_RESPONSE_SIZE PCIXCC_MAX_XCRB_MESSAGE_SIZE +#define PCIXCC_MAX_XCRB_DATA_SIZE (11*1024) +#define PCIXCC_MAX_XCRB_REPLY_SIZE (5*1024) + +#define PCIXCC_MAX_RESPONSE_SIZE PCIXCC_MAX_XCRB_RESPONSE_SIZE + +#define PCIXCC_CLEANUP_TIME (15*HZ) + +static struct ap_device_id zcrypt_pcixcc_ids[] = { + { AP_DEVICE(AP_DEVICE_TYPE_PCIXCC) }, + { AP_DEVICE(AP_DEVICE_TYPE_CEX2C) }, + { /* end of list */ }, +}; + +#ifndef CONFIG_ZCRYPT_MONOLITHIC +MODULE_DEVICE_TABLE(ap, zcrypt_pcixcc_ids); +MODULE_AUTHOR("IBM Corporation"); +MODULE_DESCRIPTION("PCIXCC Cryptographic Coprocessor device driver, " + "Copyright 2001, 2006 IBM Corporation"); +MODULE_LICENSE("GPL"); +#endif + +static int zcrypt_pcixcc_probe(struct ap_device *ap_dev); +static void zcrypt_pcixcc_remove(struct ap_device *ap_dev); +static void zcrypt_pcixcc_receive(struct ap_device *, struct ap_message *, + struct ap_message *); + +static struct ap_driver zcrypt_pcixcc_driver = { + .probe = zcrypt_pcixcc_probe, + .remove = zcrypt_pcixcc_remove, + .receive = zcrypt_pcixcc_receive, + .ids = zcrypt_pcixcc_ids, +}; + +/** + * The following is used to initialize the CPRBX passed to the PCIXCC/CEX2C + * card in a type6 message. The 3 fields that must be filled in at execution + * time are req_parml, rpl_parml and usage_domain. + * Everything about this interface is ascii/big-endian, since the + * device does *not* have 'Intel inside'. + * + * The CPRBX is followed immediately by the parm block. + * The parm block contains: + * - function code ('PD' 0x5044 or 'PK' 0x504B) + * - rule block (one of:) + * + 0x000A 'PKCS-1.2' (MCL2 'PD') + * + 0x000A 'ZERO-PAD' (MCL2 'PK') + * + 0x000A 'ZERO-PAD' (MCL3 'PD' or CEX2C 'PD') + * + 0x000A 'MRP ' (MCL3 'PK' or CEX2C 'PK') + * - VUD block + */ +static struct CPRBX static_cprbx = { + .cprb_len = 0x00DC, + .cprb_ver_id = 0x02, + .func_id = {0x54,0x32}, +}; + +/** + * Convert a ICAMEX message to a type6 MEX message. + * + * @zdev: crypto device pointer + * @ap_msg: pointer to AP message + * @mex: pointer to user input data + * + * Returns 0 on success or -EFAULT. + */ +static int ICAMEX_msg_to_type6MEX_msgX(struct zcrypt_device *zdev, + struct ap_message *ap_msg, + struct ica_rsa_modexpo *mex) +{ + static struct type6_hdr static_type6_hdrX = { + .type = 0x06, + .offset1 = 0x00000058, + .agent_id = {'C','A',}, + .function_code = {'P','K'}, + }; + static struct function_and_rules_block static_pke_fnr = { + .function_code = {'P','K'}, + .ulen = 10, + .only_rule = {'M','R','P',' ',' ',' ',' ',' '} + }; + static struct function_and_rules_block static_pke_fnr_MCL2 = { + .function_code = {'P','K'}, + .ulen = 10, + .only_rule = {'Z','E','R','O','-','P','A','D'} + }; + struct { + struct type6_hdr hdr; + struct CPRBX cprbx; + struct function_and_rules_block fr; + unsigned short length; + char text[0]; + } __attribute__((packed)) *msg = ap_msg->message; + int size; + + /* VUD.ciphertext */ + msg->length = mex->inputdatalength + 2; + if (copy_from_user(msg->text, mex->inputdata, mex->inputdatalength)) + return -EFAULT; + + /* Set up key which is located after the variable length text. */ + size = zcrypt_type6_mex_key_en(mex, msg->text+mex->inputdatalength, 1); + if (size < 0) + return size; + size += sizeof(*msg) + mex->inputdatalength; + + /* message header, cprbx and f&r */ + msg->hdr = static_type6_hdrX; + msg->hdr.ToCardLen1 = size - sizeof(msg->hdr); + msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr); + + msg->cprbx = static_cprbx; + msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid); + msg->cprbx.rpl_msgbl = msg->hdr.FromCardLen1; + + msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ? + static_pke_fnr_MCL2 : static_pke_fnr; + + msg->cprbx.req_parml = size - sizeof(msg->hdr) - sizeof(msg->cprbx); + + ap_msg->length = size; + return 0; +} + +/** + * Convert a ICACRT message to a type6 CRT message. + * + * @zdev: crypto device pointer + * @ap_msg: pointer to AP message + * @crt: pointer to user input data + * + * Returns 0 on success or -EFAULT. + */ +static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_device *zdev, + struct ap_message *ap_msg, + struct ica_rsa_modexpo_crt *crt) +{ + static struct type6_hdr static_type6_hdrX = { + .type = 0x06, + .offset1 = 0x00000058, + .agent_id = {'C','A',}, + .function_code = {'P','D'}, + }; + static struct function_and_rules_block static_pkd_fnr = { + .function_code = {'P','D'}, + .ulen = 10, + .only_rule = {'Z','E','R','O','-','P','A','D'} + }; + + static struct function_and_rules_block static_pkd_fnr_MCL2 = { + .function_code = {'P','D'}, + .ulen = 10, + .only_rule = {'P','K','C','S','-','1','.','2'} + }; + struct { + struct type6_hdr hdr; + struct CPRBX cprbx; + struct function_and_rules_block fr; + unsigned short length; + char text[0]; + } __attribute__((packed)) *msg = ap_msg->message; + int size; + + /* VUD.ciphertext */ + msg->length = crt->inputdatalength + 2; + if (copy_from_user(msg->text, crt->inputdata, crt->inputdatalength)) + return -EFAULT; + + /* Set up key which is located after the variable length text. */ + size = zcrypt_type6_crt_key(crt, msg->text + crt->inputdatalength, 1); + if (size < 0) + return size; + size += sizeof(*msg) + crt->inputdatalength; /* total size of msg */ + + /* message header, cprbx and f&r */ + msg->hdr = static_type6_hdrX; + msg->hdr.ToCardLen1 = size - sizeof(msg->hdr); + msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr); + + msg->cprbx = static_cprbx; + msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid); + msg->cprbx.req_parml = msg->cprbx.rpl_msgbl = + size - sizeof(msg->hdr) - sizeof(msg->cprbx); + + msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ? + static_pkd_fnr_MCL2 : static_pkd_fnr; + + ap_msg->length = size; + return 0; +} + +/** + * Copy results from a type 86 ICA reply message back to user space. + * + * @zdev: crypto device pointer + * @reply: reply AP message. + * @data: pointer to user output data + * @length: size of user output data + * + * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error. + */ +struct type86x_reply { + struct type86_hdr hdr; + struct type86_fmt2_ext fmt2; + struct CPRBX cprbx; + unsigned char pad[4]; /* 4 byte function code/rules block ? */ + unsigned short length; + char text[0]; +} __attribute__((packed)); + +static int convert_type86_ica(struct zcrypt_device *zdev, + struct ap_message *reply, + char __user *outputdata, + unsigned int outputdatalength) +{ + static unsigned char static_pad[] = { + 0x00,0x02, + 0x1B,0x7B,0x5D,0xB5,0x75,0x01,0x3D,0xFD, + 0x8D,0xD1,0xC7,0x03,0x2D,0x09,0x23,0x57, + 0x89,0x49,0xB9,0x3F,0xBB,0x99,0x41,0x5B, + 0x75,0x21,0x7B,0x9D,0x3B,0x6B,0x51,0x39, + 0xBB,0x0D,0x35,0xB9,0x89,0x0F,0x93,0xA5, + 0x0B,0x47,0xF1,0xD3,0xBB,0xCB,0xF1,0x9D, + 0x23,0x73,0x71,0xFF,0xF3,0xF5,0x45,0xFB, + 0x61,0x29,0x23,0xFD,0xF1,0x29,0x3F,0x7F, + 0x17,0xB7,0x1B,0xA9,0x19,0xBD,0x57,0xA9, + 0xD7,0x95,0xA3,0xCB,0xED,0x1D,0xDB,0x45, + 0x7D,0x11,0xD1,0x51,0x1B,0xED,0x71,0xE9, + 0xB1,0xD1,0xAB,0xAB,0x21,0x2B,0x1B,0x9F, + 0x3B,0x9F,0xF7,0xF7,0xBD,0x63,0xEB,0xAD, + 0xDF,0xB3,0x6F,0x5B,0xDB,0x8D,0xA9,0x5D, + 0xE3,0x7D,0x77,0x49,0x47,0xF5,0xA7,0xFD, + 0xAB,0x2F,0x27,0x35,0x77,0xD3,0x49,0xC9, + 0x09,0xEB,0xB1,0xF9,0xBF,0x4B,0xCB,0x2B, + 0xEB,0xEB,0x05,0xFF,0x7D,0xC7,0x91,0x8B, + 0x09,0x83,0xB9,0xB9,0x69,0x33,0x39,0x6B, + 0x79,0x75,0x19,0xBF,0xBB,0x07,0x1D,0xBD, + 0x29,0xBF,0x39,0x95,0x93,0x1D,0x35,0xC7, + 0xC9,0x4D,0xE5,0x97,0x0B,0x43,0x9B,0xF1, + 0x16,0x93,0x03,0x1F,0xA5,0xFB,0xDB,0xF3, + 0x27,0x4F,0x27,0x61,0x05,0x1F,0xB9,0x23, + 0x2F,0xC3,0x81,0xA9,0x23,0x71,0x55,0x55, + 0xEB,0xED,0x41,0xE5,0xF3,0x11,0xF1,0x43, + 0x69,0x03,0xBD,0x0B,0x37,0x0F,0x51,0x8F, + 0x0B,0xB5,0x89,0x5B,0x67,0xA9,0xD9,0x4F, + 0x01,0xF9,0x21,0x77,0x37,0x73,0x79,0xC5, + 0x7F,0x51,0xC1,0xCF,0x97,0xA1,0x75,0xAD, + 0x35,0x9D,0xD3,0xD3,0xA7,0x9D,0x5D,0x41, + 0x6F,0x65,0x1B,0xCF,0xA9,0x87,0x91,0x09 + }; + struct type86x_reply *msg = reply->message; + unsigned short service_rc, service_rs; + unsigned int reply_len, pad_len; + char *data; + + service_rc = msg->cprbx.ccp_rtcode; + if (unlikely(service_rc != 0)) { + service_rs = msg->cprbx.ccp_rscode; + if (service_rc == 8 && service_rs == 66) { + PDEBUG("Bad block format on PCIXCC/CEX2C\n"); + return -EINVAL; + } + if (service_rc == 8 && service_rs == 65) { + PDEBUG("Probably an even modulus on PCIXCC/CEX2C\n"); + return -EINVAL; + } + if (service_rc == 8 && service_rs == 770) { + PDEBUG("Invalid key length on PCIXCC/CEX2C\n"); + zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD; + return -EAGAIN; + } + if (service_rc == 8 && service_rs == 783) { + PDEBUG("Extended bitlengths not enabled on PCIXCC/CEX2C\n"); + zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD; + return -EAGAIN; + } + PRINTK("Unknown service rc/rs (PCIXCC/CEX2C): %d/%d\n", + service_rc, service_rs); + zdev->online = 0; + return -EAGAIN; /* repeat the request on a different device. */ + } + data = msg->text; + reply_len = msg->length - 2; + if (reply_len > outputdatalength) + return -EINVAL; + /** + * For all encipher requests, the length of the ciphertext (reply_len) + * will always equal the modulus length. For MEX decipher requests + * the output needs to get padded. Minimum pad size is 10. + * + * Currently, the cases where padding will be added is for: + * - PCIXCC_MCL2 using a CRT form token (since PKD didn't support + * ZERO-PAD and CRT is only supported for PKD requests) + * - PCICC, always + */ + pad_len = outputdatalength - reply_len; + if (pad_len > 0) { + if (pad_len < 10) + return -EINVAL; + /* 'restore' padding left in the PCICC/PCIXCC card. */ + if (copy_to_user(outputdata, static_pad, pad_len - 1)) + return -EFAULT; + if (put_user(0, outputdata + pad_len - 1)) + return -EFAULT; + } + /* Copy the crypto response to user space. */ + if (copy_to_user(outputdata + pad_len, data, reply_len)) + return -EFAULT; + return 0; +} + +static int convert_response_ica(struct zcrypt_device *zdev, + struct ap_message *reply, + char __user *outputdata, + unsigned int outputdatalength) +{ + struct type86x_reply *msg = reply->message; + + /* Response type byte is the second byte in the response. */ + switch (((unsigned char *) reply->message)[1]) { + case TYPE82_RSP_CODE: + case TYPE88_RSP_CODE: + return convert_error(zdev, reply); + case TYPE86_RSP_CODE: + if (msg->hdr.reply_code) + return convert_error(zdev, reply); + if (msg->cprbx.cprb_ver_id == 0x02) + return convert_type86_ica(zdev, reply, + outputdata, outputdatalength); + /* no break, incorrect cprb version is an unknown response */ + default: /* Unknown response type, this should NEVER EVER happen */ + PRINTK("Unrecognized Message Header: %08x%08x\n", + *(unsigned int *) reply->message, + *(unsigned int *) (reply->message+4)); + zdev->online = 0; + return -EAGAIN; /* repeat the request on a different device. */ + } +} + +/** + * This function is called from the AP bus code after a crypto request + * "msg" has finished with the reply message "reply". + * It is called from tasklet context. + * @ap_dev: pointer to the AP device + * @msg: pointer to the AP message + * @reply: pointer to the AP reply message + */ +static void zcrypt_pcixcc_receive(struct ap_device *ap_dev, + struct ap_message *msg, + struct ap_message *reply) +{ + static struct error_hdr error_reply = { + .type = TYPE82_RSP_CODE, + .reply_code = REP82_ERROR_MACHINE_FAILURE, + }; + struct type86x_reply *t86r = reply->message; + int length; + + /* Copy the reply message to the request message buffer. */ + if (IS_ERR(reply)) + memcpy(msg->message, &error_reply, sizeof(error_reply)); + else if (t86r->hdr.type == TYPE86_RSP_CODE && + t86r->cprbx.cprb_ver_id == 0x02) { + length = sizeof(struct type86x_reply) + t86r->length - 2; + length = min(PCIXCC_MAX_ICA_RESPONSE_SIZE, length); + memcpy(msg->message, reply->message, length); + } else + memcpy(msg->message, reply->message, sizeof error_reply); + complete((struct completion *) msg->private); +} + +static atomic_t zcrypt_step = ATOMIC_INIT(0); + +/** + * The request distributor calls this function if it picked the PCIXCC/CEX2C + * device to handle a modexpo request. + * @zdev: pointer to zcrypt_device structure that identifies the + * PCIXCC/CEX2C device to the request distributor + * @mex: pointer to the modexpo request buffer + */ +static long zcrypt_pcixcc_modexpo(struct zcrypt_device *zdev, + struct ica_rsa_modexpo *mex) +{ + struct ap_message ap_msg; + struct completion work; + int rc; + + ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); + if (!ap_msg.message) + return -ENOMEM; + ap_msg.psmid = (((unsigned long long) current->pid) << 32) + + atomic_inc_return(&zcrypt_step); + ap_msg.private = &work; + rc = ICAMEX_msg_to_type6MEX_msgX(zdev, &ap_msg, mex); + if (rc) + goto out_free; + init_completion(&work); + ap_queue_message(zdev->ap_dev, &ap_msg); + rc = wait_for_completion_interruptible_timeout( + &work, PCIXCC_CLEANUP_TIME); + if (rc > 0) + rc = convert_response_ica(zdev, &ap_msg, mex->outputdata, + mex->outputdatalength); + else { + /* Signal pending or message timed out. */ + ap_cancel_message(zdev->ap_dev, &ap_msg); + if (rc == 0) + /* Message timed out. */ + rc = -ETIME; + } +out_free: + free_page((unsigned long) ap_msg.message); + return rc; +} + +/** + * The request distributor calls this function if it picked the PCIXCC/CEX2C + * device to handle a modexpo_crt request. + * @zdev: pointer to zcrypt_device structure that identifies the + * PCIXCC/CEX2C device to the request distributor + * @crt: pointer to the modexpoc_crt request buffer + */ +static long zcrypt_pcixcc_modexpo_crt(struct zcrypt_device *zdev, + struct ica_rsa_modexpo_crt *crt) +{ + struct ap_message ap_msg; + struct completion work; + int rc; + + ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); + if (!ap_msg.message) + return -ENOMEM; + ap_msg.psmid = (((unsigned long long) current->pid) << 32) + + atomic_inc_return(&zcrypt_step); + ap_msg.private = &work; + rc = ICACRT_msg_to_type6CRT_msgX(zdev, &ap_msg, crt); + if (rc) + goto out_free; + init_completion(&work); + ap_queue_message(zdev->ap_dev, &ap_msg); + rc = wait_for_completion_interruptible_timeout( + &work, PCIXCC_CLEANUP_TIME); + if (rc > 0) + rc = convert_response_ica(zdev, &ap_msg, crt->outputdata, + crt->outputdatalength); + else { + /* Signal pending or message timed out. */ + ap_cancel_message(zdev->ap_dev, &ap_msg); + if (rc == 0) + /* Message timed out. */ + rc = -ETIME; + } +out_free: + free_page((unsigned long) ap_msg.message); + return rc; +} + +/** + * The crypto operations for a PCIXCC/CEX2C card. + */ +static struct zcrypt_ops zcrypt_pcixcc_ops = { + .rsa_modexpo = zcrypt_pcixcc_modexpo, + .rsa_modexpo_crt = zcrypt_pcixcc_modexpo_crt, +}; + +/** + * Micro-code detection function. Its sends a message to a pcixcc card + * to find out the microcode level. + * @ap_dev: pointer to the AP device. + */ +static int zcrypt_pcixcc_mcl(struct ap_device *ap_dev) +{ + static unsigned char msg[] = { + 0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x58,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x43,0x41,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x00, + 0x00,0x00,0x01,0xC4,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x07,0x24,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0xDC,0x02,0x00,0x00,0x00,0x54,0x32, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE8, + 0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x24, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, + 0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x0A, + 0x4D,0x52,0x50,0x20,0x20,0x20,0x20,0x20, + 0x00,0x42,0x00,0x01,0x02,0x03,0x04,0x05, + 0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D, + 0x0E,0x0F,0x00,0x11,0x22,0x33,0x44,0x55, + 0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD, + 0xEE,0xFF,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA, + 0x99,0x88,0x77,0x66,0x55,0x44,0x33,0x22, + 0x11,0x00,0x01,0x23,0x45,0x67,0x89,0xAB, + 0xCD,0xEF,0xFE,0xDC,0xBA,0x98,0x76,0x54, + 0x32,0x10,0x00,0x9A,0x00,0x98,0x00,0x00, + 0x1E,0x00,0x00,0x94,0x00,0x00,0x00,0x00, + 0x04,0x00,0x00,0x8C,0x00,0x00,0x00,0x40, + 0x02,0x00,0x00,0x40,0xBA,0xE8,0x23,0x3C, + 0x75,0xF3,0x91,0x61,0xD6,0x73,0x39,0xCF, + 0x7B,0x6D,0x8E,0x61,0x97,0x63,0x9E,0xD9, + 0x60,0x55,0xD6,0xC7,0xEF,0xF8,0x1E,0x63, + 0x95,0x17,0xCC,0x28,0x45,0x60,0x11,0xC5, + 0xC4,0x4E,0x66,0xC6,0xE6,0xC3,0xDE,0x8A, + 0x19,0x30,0xCF,0x0E,0xD7,0xAA,0xDB,0x01, + 0xD8,0x00,0xBB,0x8F,0x39,0x9F,0x64,0x28, + 0xF5,0x7A,0x77,0x49,0xCC,0x6B,0xA3,0x91, + 0x97,0x70,0xE7,0x60,0x1E,0x39,0xE1,0xE5, + 0x33,0xE1,0x15,0x63,0x69,0x08,0x80,0x4C, + 0x67,0xC4,0x41,0x8F,0x48,0xDF,0x26,0x98, + 0xF1,0xD5,0x8D,0x88,0xD9,0x6A,0xA4,0x96, + 0xC5,0x84,0xD9,0x30,0x49,0x67,0x7D,0x19, + 0xB1,0xB3,0x45,0x4D,0xB2,0x53,0x9A,0x47, + 0x3C,0x7C,0x55,0xBF,0xCC,0x85,0x00,0x36, + 0xF1,0x3D,0x93,0x53 + }; + unsigned long long psmid; + struct CPRBX *cprbx; + char *reply; + int rc, i; + + reply = (void *) get_zeroed_page(GFP_KERNEL); + if (!reply) + return -ENOMEM; + + rc = ap_send(ap_dev->qid, 0x0102030405060708ULL, msg, sizeof(msg)); + if (rc) + goto out_free; + + /* Wait for the test message to complete. */ + for (i = 0; i < 6; i++) { + mdelay(300); + rc = ap_recv(ap_dev->qid, &psmid, reply, 4096); + if (rc == 0 && psmid == 0x0102030405060708ULL) + break; + } + + if (i >= 6) { + /* Got no answer. */ + rc = -ENODEV; + goto out_free; + } + + cprbx = (struct CPRBX *) (reply + 48); + if (cprbx->ccp_rtcode == 8 && cprbx->ccp_rscode == 33) + rc = ZCRYPT_PCIXCC_MCL2; + else + rc = ZCRYPT_PCIXCC_MCL3; +out_free: + free_page((unsigned long) reply); + return rc; +} + +/** + * Probe function for PCIXCC/CEX2C cards. It always accepts the AP device + * since the bus_match already checked the hardware type. The PCIXCC + * cards come in two flavours: micro code level 2 and micro code level 3. + * This is checked by sending a test message to the device. + * @ap_dev: pointer to the AP device. + */ +static int zcrypt_pcixcc_probe(struct ap_device *ap_dev) +{ + struct zcrypt_device *zdev; + int rc; + + zdev = zcrypt_device_alloc(PCIXCC_MAX_RESPONSE_SIZE); + if (!zdev) + return -ENOMEM; + zdev->ap_dev = ap_dev; + zdev->ops = &zcrypt_pcixcc_ops; + zdev->online = 1; + if (ap_dev->device_type == AP_DEVICE_TYPE_PCIXCC) { + rc = zcrypt_pcixcc_mcl(ap_dev); + if (rc < 0) { + zcrypt_device_free(zdev); + return rc; + } + zdev->user_space_type = rc; + if (rc == ZCRYPT_PCIXCC_MCL2) { + zdev->type_string = "PCIXCC_MCL2"; + zdev->speed_rating = PCIXCC_MCL2_SPEED_RATING; + zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD; + zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE; + } else { + zdev->type_string = "PCIXCC_MCL3"; + zdev->speed_rating = PCIXCC_MCL3_SPEED_RATING; + zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE; + zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE; + } + } else { + zdev->user_space_type = ZCRYPT_CEX2C; + zdev->type_string = "CEX2C"; + zdev->speed_rating = CEX2C_SPEED_RATING; + zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE; + zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE; + } + ap_dev->reply = &zdev->reply; + ap_dev->private = zdev; + rc = zcrypt_device_register(zdev); + if (rc) + goto out_free; + return 0; + + out_free: + ap_dev->private = NULL; + zcrypt_device_free(zdev); + return rc; +} + +/** + * This is called to remove the extended PCIXCC/CEX2C driver information + * if an AP device is removed. + */ +static void zcrypt_pcixcc_remove(struct ap_device *ap_dev) +{ + struct zcrypt_device *zdev = ap_dev->private; + + zcrypt_device_unregister(zdev); +} + +int __init zcrypt_pcixcc_init(void) +{ + return ap_driver_register(&zcrypt_pcixcc_driver, THIS_MODULE, "pcixcc"); +} + +void zcrypt_pcixcc_exit(void) +{ + ap_driver_unregister(&zcrypt_pcixcc_driver); +} + +#ifndef CONFIG_ZCRYPT_MONOLITHIC +module_init(zcrypt_pcixcc_init); +module_exit(zcrypt_pcixcc_exit); +#endif diff --git a/drivers/s390/crypto/zcrypt_pcixcc.h b/drivers/s390/crypto/zcrypt_pcixcc.h new file mode 100644 index 00000000000..d4c44c4d7ad --- /dev/null +++ b/drivers/s390/crypto/zcrypt_pcixcc.h @@ -0,0 +1,79 @@ +/* + * linux/drivers/s390/crypto/zcrypt_pcixcc.h + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _ZCRYPT_PCIXCC_H_ +#define _ZCRYPT_PCIXCC_H_ + +/** + * CPRBX + * Note that all shorts and ints are big-endian. + * All pointer fields are 16 bytes long, and mean nothing. + * + * A request CPRB is followed by a request_parameter_block. + * + * The request (or reply) parameter block is organized thus: + * function code + * VUD block + * key block + */ +struct CPRBX { + unsigned short cprb_len; /* CPRB length 220 */ + unsigned char cprb_ver_id; /* CPRB version id. 0x02 */ + unsigned char pad_000[3]; /* Alignment pad bytes */ + unsigned char func_id[2]; /* function id 0x5432 */ + unsigned char cprb_flags[4]; /* Flags */ + unsigned int req_parml; /* request parameter buffer len */ + unsigned int req_datal; /* request data buffer */ + unsigned int rpl_msgbl; /* reply message block length */ + unsigned int rpld_parml; /* replied parameter block len */ + unsigned int rpl_datal; /* reply data block len */ + unsigned int rpld_datal; /* replied data block len */ + unsigned int req_extbl; /* request extension block len */ + unsigned char pad_001[4]; /* reserved */ + unsigned int rpld_extbl; /* replied extension block len */ + unsigned char req_parmb[16]; /* request parm block 'address' */ + unsigned char req_datab[16]; /* request data block 'address' */ + unsigned char rpl_parmb[16]; /* reply parm block 'address' */ + unsigned char rpl_datab[16]; /* reply data block 'address' */ + unsigned char req_extb[16]; /* request extension block 'addr'*/ + unsigned char rpl_extb[16]; /* reply extension block 'addres'*/ + unsigned short ccp_rtcode; /* server return code */ + unsigned short ccp_rscode; /* server reason code */ + unsigned int mac_data_len; /* Mac Data Length */ + unsigned char logon_id[8]; /* Logon Identifier */ + unsigned char mac_value[8]; /* Mac Value */ + unsigned char mac_content_flgs;/* Mac content flag byte */ + unsigned char pad_002; /* Alignment */ + unsigned short domain; /* Domain */ + unsigned char pad_003[12]; /* Domain masks */ + unsigned char pad_004[36]; /* reserved */ +} __attribute__((packed)); + +int zcrypt_pcixcc_init(void); +void zcrypt_pcixcc_exit(void); + +#endif /* _ZCRYPT_PCIXCC_H_ */ -- cgit v1.2.3-70-g09d2 From fe3a1be59c851aba2330387596c6134bc5ec8397 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:58:34 +0200 Subject: [S390] zcrypt driver Makefile, Kconfig and monolithic build. The Makefile and Kconfig changes should be obvious. The monolithic build option is there to create an old-style z90crypt module for backward compatability to older distributions. Signed-off-by: Ralph Wuerthner Signed-off-by: Martin Schwidefsky --- drivers/s390/Kconfig | 21 ++++++++ drivers/s390/crypto/Makefile | 13 +++++ drivers/s390/crypto/zcrypt_mono.c | 100 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 134 insertions(+) create mode 100644 drivers/s390/crypto/zcrypt_mono.c (limited to 'drivers') diff --git a/drivers/s390/Kconfig b/drivers/s390/Kconfig index f0ea550d39b..bc4261e8b60 100644 --- a/drivers/s390/Kconfig +++ b/drivers/s390/Kconfig @@ -217,4 +217,25 @@ endmenu menu "Cryptographic devices" +config ZCRYPT + tristate "Support for PCI-attached cryptographic adapters" + select ZCRYPT_MONOLITHIC if ZCRYPT="y" + default "m" + help + Select this option if you want to use a PCI-attached cryptographic + adapter like: + + PCI Cryptographic Accelerator (PCICA) + + PCI Cryptographic Coprocessor (PCICC) + + PCI-X Cryptographic Coprocessor (PCIXCC) + + Crypto Express2 Coprocessor (CEX2C) + + Crypto Express2 Accelerator (CEX2A) + +config ZCRYPT_MONOLITHIC + bool "Monolithic zcrypt module" + depends on ZCRYPT="m" + help + Select this option if you want to have a single module z90crypt.ko + that contains all parts of the crypto device driver (ap bus, + request router and all the card drivers). + endmenu diff --git a/drivers/s390/crypto/Makefile b/drivers/s390/crypto/Makefile index 67e75be8e4e..f0a12d2eb78 100644 --- a/drivers/s390/crypto/Makefile +++ b/drivers/s390/crypto/Makefile @@ -2,3 +2,16 @@ # S/390 crypto devices # +ifdef CONFIG_ZCRYPT_MONOLITHIC + +z90crypt-objs := zcrypt_mono.o ap_bus.o zcrypt_api.o \ + zcrypt_pcica.o zcrypt_pcicc.o zcrypt_pcixcc.o zcrypt_cex2a.o +obj-$(CONFIG_ZCRYPT) += z90crypt.o + +else + +ap-objs := ap_bus.o +obj-$(CONFIG_ZCRYPT) += ap.o zcrypt_api.o zcrypt_pcicc.o zcrypt_pcixcc.o +obj-$(CONFIG_ZCRYPT) += zcrypt_pcica.o zcrypt_cex2a.o + +endif diff --git a/drivers/s390/crypto/zcrypt_mono.c b/drivers/s390/crypto/zcrypt_mono.c new file mode 100644 index 00000000000..f48b61a6126 --- /dev/null +++ b/drivers/s390/crypto/zcrypt_mono.c @@ -0,0 +1,100 @@ +/* + * linux/drivers/s390/crypto/zcrypt_mono.c + * + * zcrypt 2.0.0 + * + * Copyright (C) 2001, 2006 IBM Corporation + * Author(s): Robert Burroughs + * Eric Rossman (edrossma@us.ibm.com) + * + * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) + * Major cleanup & driver split: Martin Schwidefsky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "ap_bus.h" +#include "zcrypt_api.h" +#include "zcrypt_pcica.h" +#include "zcrypt_pcicc.h" +#include "zcrypt_pcixcc.h" +#include "zcrypt_cex2a.h" + +/** + * The module initialization code. + */ +int __init zcrypt_init(void) +{ + int rc; + + rc = ap_module_init(); + if (rc) + goto out; + rc = zcrypt_api_init(); + if (rc) + goto out_ap; + rc = zcrypt_pcica_init(); + if (rc) + goto out_api; + rc = zcrypt_pcicc_init(); + if (rc) + goto out_pcica; + rc = zcrypt_pcixcc_init(); + if (rc) + goto out_pcicc; + rc = zcrypt_cex2a_init(); + if (rc) + goto out_pcixcc; + return 0; + +out_pcixcc: + zcrypt_pcixcc_exit(); +out_pcicc: + zcrypt_pcicc_exit(); +out_pcica: + zcrypt_pcica_exit(); +out_api: + zcrypt_api_exit(); +out_ap: + ap_module_exit(); +out: + return rc; +} + +/** + * The module termination code. + */ +void __exit zcrypt_exit(void) +{ + zcrypt_cex2a_exit(); + zcrypt_pcixcc_exit(); + zcrypt_pcicc_exit(); + zcrypt_pcica_exit(); + zcrypt_api_exit(); + ap_module_exit(); +} + +module_init(zcrypt_init); +module_exit(zcrypt_exit); -- cgit v1.2.3-70-g09d2 From 5432114baf0300286a6ca1b0aea549492a379432 Mon Sep 17 00:00:00 2001 From: Ralph Wuerthner Date: Wed, 20 Sep 2006 15:58:36 +0200 Subject: [S390] zcrypt secure key cryptography extension. Allow the user space to send extended cprb messages directly to the PCIXCC / CEX2C cards. This allows the CCA library to construct special crypto requests that use "secure" keys that are stored on the card. Signed-off-by: Ralph Wuerthner Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/zcrypt_api.c | 112 ++++++++++++++- drivers/s390/crypto/zcrypt_api.h | 3 +- drivers/s390/crypto/zcrypt_cca_key.h | 2 +- drivers/s390/crypto/zcrypt_cex2a.c | 2 +- drivers/s390/crypto/zcrypt_cex2a.h | 2 +- drivers/s390/crypto/zcrypt_error.h | 2 +- drivers/s390/crypto/zcrypt_mono.c | 2 +- drivers/s390/crypto/zcrypt_pcica.c | 2 +- drivers/s390/crypto/zcrypt_pcica.h | 2 +- drivers/s390/crypto/zcrypt_pcicc.c | 2 +- drivers/s390/crypto/zcrypt_pcicc.h | 2 +- drivers/s390/crypto/zcrypt_pcixcc.c | 263 +++++++++++++++++++++++++++++++++-- drivers/s390/crypto/zcrypt_pcixcc.h | 2 +- include/asm-s390/zcrypt.h | 80 ++++++++++- 14 files changed, 452 insertions(+), 26 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c index b3fe003b3d2..1edc10a7a6f 100644 --- a/drivers/s390/crypto/zcrypt_api.c +++ b/drivers/s390/crypto/zcrypt_api.c @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_api.c * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs @@ -392,6 +392,41 @@ static long zcrypt_rsa_crt(struct ica_rsa_modexpo_crt *crt) return -ENODEV; } +static long zcrypt_send_cprb(struct ica_xcRB *xcRB) +{ + struct zcrypt_device *zdev; + int rc; + + spin_lock_bh(&zcrypt_device_lock); + list_for_each_entry(zdev, &zcrypt_device_list, list) { + if (!zdev->online || !zdev->ops->send_cprb || + (xcRB->user_defined != AUTOSELECT && + AP_QID_DEVICE(zdev->ap_dev->qid) != xcRB->user_defined) + ) + continue; + zcrypt_device_get(zdev); + get_device(&zdev->ap_dev->device); + zdev->request_count++; + __zcrypt_decrease_preference(zdev); + spin_unlock_bh(&zcrypt_device_lock); + if (try_module_get(zdev->ap_dev->drv->driver.owner)) { + rc = zdev->ops->send_cprb(zdev, xcRB); + module_put(zdev->ap_dev->drv->driver.owner); + } + else + rc = -EAGAIN; + spin_lock_bh(&zcrypt_device_lock); + zdev->request_count--; + __zcrypt_increase_preference(zdev); + put_device(&zdev->ap_dev->device); + zcrypt_device_put(zdev); + spin_unlock_bh(&zcrypt_device_lock); + return rc; + } + spin_unlock_bh(&zcrypt_device_lock); + return -ENODEV; +} + static void zcrypt_status_mask(char status[AP_DEVICES]) { struct zcrypt_device *zdev; @@ -535,6 +570,18 @@ static long zcrypt_unlocked_ioctl(struct file *filp, unsigned int cmd, return rc; return put_user(crt.outputdatalength, &ucrt->outputdatalength); } + case ZSECSENDCPRB: { + struct ica_xcRB __user *uxcRB = (void __user *) arg; + struct ica_xcRB xcRB; + if (copy_from_user(&xcRB, uxcRB, sizeof(xcRB))) + return -EFAULT; + do { + rc = zcrypt_send_cprb(&xcRB); + } while (rc == -EAGAIN); + if (copy_to_user(uxcRB, &xcRB, sizeof(xcRB))) + return -EFAULT; + return rc; + } case Z90STAT_STATUS_MASK: { char status[AP_DEVICES]; zcrypt_status_mask(status); @@ -683,6 +730,67 @@ static long trans_modexpo_crt32(struct file *filp, unsigned int cmd, return rc; } +struct compat_ica_xcRB { + unsigned short agent_ID; + unsigned int user_defined; + unsigned short request_ID; + unsigned int request_control_blk_length; + unsigned char padding1[16 - sizeof (compat_uptr_t)]; + compat_uptr_t request_control_blk_addr; + unsigned int request_data_length; + char padding2[16 - sizeof (compat_uptr_t)]; + compat_uptr_t request_data_address; + unsigned int reply_control_blk_length; + char padding3[16 - sizeof (compat_uptr_t)]; + compat_uptr_t reply_control_blk_addr; + unsigned int reply_data_length; + char padding4[16 - sizeof (compat_uptr_t)]; + compat_uptr_t reply_data_addr; + unsigned short priority_window; + unsigned int status; +} __attribute__((packed)); + +static long trans_xcRB32(struct file *filp, unsigned int cmd, + unsigned long arg) +{ + struct compat_ica_xcRB __user *uxcRB32 = compat_ptr(arg); + struct compat_ica_xcRB xcRB32; + struct ica_xcRB xcRB64; + long rc; + + if (copy_from_user(&xcRB32, uxcRB32, sizeof(xcRB32))) + return -EFAULT; + xcRB64.agent_ID = xcRB32.agent_ID; + xcRB64.user_defined = xcRB32.user_defined; + xcRB64.request_ID = xcRB32.request_ID; + xcRB64.request_control_blk_length = + xcRB32.request_control_blk_length; + xcRB64.request_control_blk_addr = + compat_ptr(xcRB32.request_control_blk_addr); + xcRB64.request_data_length = + xcRB32.request_data_length; + xcRB64.request_data_address = + compat_ptr(xcRB32.request_data_address); + xcRB64.reply_control_blk_length = + xcRB32.reply_control_blk_length; + xcRB64.reply_control_blk_addr = + compat_ptr(xcRB32.reply_control_blk_addr); + xcRB64.reply_data_length = xcRB32.reply_data_length; + xcRB64.reply_data_addr = + compat_ptr(xcRB32.reply_data_addr); + xcRB64.priority_window = xcRB32.priority_window; + xcRB64.status = xcRB32.status; + do { + rc = zcrypt_send_cprb(&xcRB64); + } while (rc == -EAGAIN); + xcRB32.reply_control_blk_length = xcRB64.reply_control_blk_length; + xcRB32.reply_data_length = xcRB64.reply_data_length; + xcRB32.status = xcRB64.status; + if (copy_to_user(uxcRB32, &xcRB32, sizeof(xcRB32))) + return -EFAULT; + return rc; +} + long zcrypt_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { @@ -690,6 +798,8 @@ long zcrypt_compat_ioctl(struct file *filp, unsigned int cmd, return trans_modexpo32(filp, cmd, arg); if (cmd == ICARSACRT) return trans_modexpo_crt32(filp, cmd, arg); + if (cmd == ZSECSENDCPRB) + return trans_xcRB32(filp, cmd, arg); return zcrypt_unlocked_ioctl(filp, cmd, arg); } #endif diff --git a/drivers/s390/crypto/zcrypt_api.h b/drivers/s390/crypto/zcrypt_api.h index 1f0e61f2e9b..de4877ee618 100644 --- a/drivers/s390/crypto/zcrypt_api.h +++ b/drivers/s390/crypto/zcrypt_api.h @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_api.h * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs @@ -106,6 +106,7 @@ struct zcrypt_ops { long (*rsa_modexpo)(struct zcrypt_device *, struct ica_rsa_modexpo *); long (*rsa_modexpo_crt)(struct zcrypt_device *, struct ica_rsa_modexpo_crt *); + long (*send_cprb)(struct zcrypt_device *, struct ica_xcRB *); }; struct zcrypt_device { diff --git a/drivers/s390/crypto/zcrypt_cca_key.h b/drivers/s390/crypto/zcrypt_cca_key.h index c80f40d4419..8dbcf0eef3e 100644 --- a/drivers/s390/crypto/zcrypt_cca_key.h +++ b/drivers/s390/crypto/zcrypt_cca_key.h @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_cca_key.h * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs diff --git a/drivers/s390/crypto/zcrypt_cex2a.c b/drivers/s390/crypto/zcrypt_cex2a.c index 350248e5cd9..a62b00083d0 100644 --- a/drivers/s390/crypto/zcrypt_cex2a.c +++ b/drivers/s390/crypto/zcrypt_cex2a.c @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_cex2a.c * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs diff --git a/drivers/s390/crypto/zcrypt_cex2a.h b/drivers/s390/crypto/zcrypt_cex2a.h index 61a78c32dce..8f69d1dacab 100644 --- a/drivers/s390/crypto/zcrypt_cex2a.h +++ b/drivers/s390/crypto/zcrypt_cex2a.h @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_cex2a.h * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs diff --git a/drivers/s390/crypto/zcrypt_error.h b/drivers/s390/crypto/zcrypt_error.h index b22bd055a03..2cb616ba8be 100644 --- a/drivers/s390/crypto/zcrypt_error.h +++ b/drivers/s390/crypto/zcrypt_error.h @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_error.h * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs diff --git a/drivers/s390/crypto/zcrypt_mono.c b/drivers/s390/crypto/zcrypt_mono.c index f48b61a6126..2a9349ad68b 100644 --- a/drivers/s390/crypto/zcrypt_mono.c +++ b/drivers/s390/crypto/zcrypt_mono.c @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_mono.c * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs diff --git a/drivers/s390/crypto/zcrypt_pcica.c b/drivers/s390/crypto/zcrypt_pcica.c index 0ff56e86caa..b6a4ecdc802 100644 --- a/drivers/s390/crypto/zcrypt_pcica.c +++ b/drivers/s390/crypto/zcrypt_pcica.c @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_pcica.c * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs diff --git a/drivers/s390/crypto/zcrypt_pcica.h b/drivers/s390/crypto/zcrypt_pcica.h index a08a4f8c33c..3be11187f6d 100644 --- a/drivers/s390/crypto/zcrypt_pcica.h +++ b/drivers/s390/crypto/zcrypt_pcica.h @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_pcica.h * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs diff --git a/drivers/s390/crypto/zcrypt_pcicc.c b/drivers/s390/crypto/zcrypt_pcicc.c index 900362983fe..f295a403b29 100644 --- a/drivers/s390/crypto/zcrypt_pcicc.c +++ b/drivers/s390/crypto/zcrypt_pcicc.c @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_pcicc.c * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs diff --git a/drivers/s390/crypto/zcrypt_pcicc.h b/drivers/s390/crypto/zcrypt_pcicc.h index 027bafc7312..6d4454846c8 100644 --- a/drivers/s390/crypto/zcrypt_pcicc.h +++ b/drivers/s390/crypto/zcrypt_pcicc.h @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_pcicc.h * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c index 6064cf58be4..2da8b938140 100644 --- a/drivers/s390/crypto/zcrypt_pcixcc.c +++ b/drivers/s390/crypto/zcrypt_pcixcc.c @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_pcixcc.c * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs @@ -60,6 +60,15 @@ #define PCIXCC_CLEANUP_TIME (15*HZ) +#define CEIL4(x) ((((x)+3)/4)*4) + +struct response_type { + struct completion work; + int type; +}; +#define PCIXCC_RESPONSE_TYPE_ICA 0 +#define PCIXCC_RESPONSE_TYPE_XCRB 1 + static struct ap_device_id zcrypt_pcixcc_ids[] = { { AP_DEVICE(AP_DEVICE_TYPE_PCIXCC) }, { AP_DEVICE(AP_DEVICE_TYPE_CEX2C) }, @@ -243,6 +252,108 @@ static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_device *zdev, return 0; } +/** + * Convert a XCRB message to a type6 CPRB message. + * + * @zdev: crypto device pointer + * @ap_msg: pointer to AP message + * @xcRB: pointer to user input data + * + * Returns 0 on success or -EFAULT. + */ +struct type86_fmt2_msg { + struct type86_hdr hdr; + struct type86_fmt2_ext fmt2; +} __attribute__((packed)); + +static int XCRB_msg_to_type6CPRB_msgX(struct zcrypt_device *zdev, + struct ap_message *ap_msg, + struct ica_xcRB *xcRB) +{ + static struct type6_hdr static_type6_hdrX = { + .type = 0x06, + .offset1 = 0x00000058, + }; + struct { + struct type6_hdr hdr; + struct ica_CPRBX cprbx; + } __attribute__((packed)) *msg = ap_msg->message; + + int rcblen = CEIL4(xcRB->request_control_blk_length); + int replylen; + char *req_data = ap_msg->message + sizeof(struct type6_hdr) + rcblen; + char *function_code; + + /* length checks */ + ap_msg->length = sizeof(struct type6_hdr) + + CEIL4(xcRB->request_control_blk_length) + + xcRB->request_data_length; + if (ap_msg->length > PCIXCC_MAX_XCRB_MESSAGE_SIZE) { + PRINTK("Combined message is too large (%ld/%d/%d).\n", + sizeof(struct type6_hdr), + xcRB->request_control_blk_length, + xcRB->request_data_length); + return -EFAULT; + } + if (CEIL4(xcRB->reply_control_blk_length) > + PCIXCC_MAX_XCRB_REPLY_SIZE) { + PDEBUG("Reply CPRB length is too large (%d).\n", + xcRB->request_control_blk_length); + return -EFAULT; + } + if (CEIL4(xcRB->reply_data_length) > PCIXCC_MAX_XCRB_DATA_SIZE) { + PDEBUG("Reply data block length is too large (%d).\n", + xcRB->reply_data_length); + return -EFAULT; + } + replylen = CEIL4(xcRB->reply_control_blk_length) + + CEIL4(xcRB->reply_data_length) + + sizeof(struct type86_fmt2_msg); + if (replylen > PCIXCC_MAX_XCRB_RESPONSE_SIZE) { + PDEBUG("Reply CPRB + data block > PCIXCC_MAX_XCRB_RESPONSE_SIZE" + " (%d/%d/%d).\n", + sizeof(struct type86_fmt2_msg), + xcRB->reply_control_blk_length, + xcRB->reply_data_length); + xcRB->reply_control_blk_length = PCIXCC_MAX_XCRB_RESPONSE_SIZE - + (sizeof(struct type86_fmt2_msg) + + CEIL4(xcRB->reply_data_length)); + PDEBUG("Capping Reply CPRB length at %d\n", + xcRB->reply_control_blk_length); + } + + /* prepare type6 header */ + msg->hdr = static_type6_hdrX; + memcpy(msg->hdr.agent_id , &(xcRB->agent_ID), sizeof(xcRB->agent_ID)); + msg->hdr.ToCardLen1 = xcRB->request_control_blk_length; + if (xcRB->request_data_length) { + msg->hdr.offset2 = msg->hdr.offset1 + rcblen; + msg->hdr.ToCardLen2 = xcRB->request_data_length; + } + msg->hdr.FromCardLen1 = xcRB->reply_control_blk_length; + msg->hdr.FromCardLen2 = xcRB->reply_data_length; + + /* prepare CPRB */ + if (copy_from_user(&(msg->cprbx), xcRB->request_control_blk_addr, + xcRB->request_control_blk_length)) + return -EFAULT; + if (msg->cprbx.cprb_len + sizeof(msg->hdr.function_code) > + xcRB->request_control_blk_length) { + PDEBUG("cprb_len too large (%d/%d)\n", msg->cprbx.cprb_len, + xcRB->request_control_blk_length); + return -EFAULT; + } + function_code = ((unsigned char *)&msg->cprbx) + msg->cprbx.cprb_len; + memcpy(msg->hdr.function_code, function_code, sizeof(msg->hdr.function_code)); + + /* copy data block */ + if (xcRB->request_data_length && + copy_from_user(req_data, xcRB->request_data_address, + xcRB->request_data_length)) + return -EFAULT; + return 0; +} + /** * Copy results from a type 86 ICA reply message back to user space. * @@ -363,6 +474,37 @@ static int convert_type86_ica(struct zcrypt_device *zdev, return 0; } +/** + * Copy results from a type 86 XCRB reply message back to user space. + * + * @zdev: crypto device pointer + * @reply: reply AP message. + * @xcRB: pointer to XCRB + * + * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error. + */ +static int convert_type86_xcrb(struct zcrypt_device *zdev, + struct ap_message *reply, + struct ica_xcRB *xcRB) +{ + struct type86_fmt2_msg *msg = reply->message; + char *data = reply->message; + + /* Copy CPRB to user */ + if (copy_to_user(xcRB->reply_control_blk_addr, + data + msg->fmt2.offset1, msg->fmt2.count1)) + return -EFAULT; + xcRB->reply_control_blk_length = msg->fmt2.count1; + + /* Copy data buffer to user */ + if (msg->fmt2.count2) + if (copy_to_user(xcRB->reply_data_addr, + data + msg->fmt2.offset2, msg->fmt2.count2)) + return -EFAULT; + xcRB->reply_data_length = msg->fmt2.count2; + return 0; +} + static int convert_response_ica(struct zcrypt_device *zdev, struct ap_message *reply, char __user *outputdata, @@ -391,6 +533,36 @@ static int convert_response_ica(struct zcrypt_device *zdev, } } +static int convert_response_xcrb(struct zcrypt_device *zdev, + struct ap_message *reply, + struct ica_xcRB *xcRB) +{ + struct type86x_reply *msg = reply->message; + + /* Response type byte is the second byte in the response. */ + switch (((unsigned char *) reply->message)[1]) { + case TYPE82_RSP_CODE: + case TYPE88_RSP_CODE: + xcRB->status = 0x0008044DL; /* HDD_InvalidParm */ + return convert_error(zdev, reply); + case TYPE86_RSP_CODE: + if (msg->hdr.reply_code) { + memcpy(&(xcRB->status), msg->fmt2.apfs, sizeof(u32)); + return convert_error(zdev, reply); + } + if (msg->cprbx.cprb_ver_id == 0x02) + return convert_type86_xcrb(zdev, reply, xcRB); + /* no break, incorrect cprb version is an unknown response */ + default: /* Unknown response type, this should NEVER EVER happen */ + PRINTK("Unrecognized Message Header: %08x%08x\n", + *(unsigned int *) reply->message, + *(unsigned int *) (reply->message+4)); + xcRB->status = 0x0008044DL; /* HDD_InvalidParm */ + zdev->online = 0; + return -EAGAIN; /* repeat the request on a different device. */ + } +} + /** * This function is called from the AP bus code after a crypto request * "msg" has finished with the reply message "reply". @@ -407,6 +579,8 @@ static void zcrypt_pcixcc_receive(struct ap_device *ap_dev, .type = TYPE82_RSP_CODE, .reply_code = REP82_ERROR_MACHINE_FAILURE, }; + struct response_type *resp_type = + (struct response_type *) msg->private; struct type86x_reply *t86r = reply->message; int length; @@ -415,12 +589,27 @@ static void zcrypt_pcixcc_receive(struct ap_device *ap_dev, memcpy(msg->message, &error_reply, sizeof(error_reply)); else if (t86r->hdr.type == TYPE86_RSP_CODE && t86r->cprbx.cprb_ver_id == 0x02) { - length = sizeof(struct type86x_reply) + t86r->length - 2; - length = min(PCIXCC_MAX_ICA_RESPONSE_SIZE, length); - memcpy(msg->message, reply->message, length); + switch (resp_type->type) { + case PCIXCC_RESPONSE_TYPE_ICA: + length = sizeof(struct type86x_reply) + + t86r->length - 2; + length = min(PCIXCC_MAX_ICA_RESPONSE_SIZE, length); + memcpy(msg->message, reply->message, length); + break; + case PCIXCC_RESPONSE_TYPE_XCRB: + length = t86r->fmt2.offset2 + t86r->fmt2.count2; + length = min(PCIXCC_MAX_XCRB_RESPONSE_SIZE, length); + memcpy(msg->message, reply->message, length); + break; + default: + PRINTK("Invalid internal response type: %i\n", + resp_type->type); + memcpy(msg->message, &error_reply, + sizeof error_reply); + } } else memcpy(msg->message, reply->message, sizeof error_reply); - complete((struct completion *) msg->private); + complete(&(resp_type->work)); } static atomic_t zcrypt_step = ATOMIC_INIT(0); @@ -436,7 +625,9 @@ static long zcrypt_pcixcc_modexpo(struct zcrypt_device *zdev, struct ica_rsa_modexpo *mex) { struct ap_message ap_msg; - struct completion work; + struct response_type resp_type = { + .type = PCIXCC_RESPONSE_TYPE_ICA, + }; int rc; ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); @@ -444,14 +635,14 @@ static long zcrypt_pcixcc_modexpo(struct zcrypt_device *zdev, return -ENOMEM; ap_msg.psmid = (((unsigned long long) current->pid) << 32) + atomic_inc_return(&zcrypt_step); - ap_msg.private = &work; + ap_msg.private = &resp_type; rc = ICAMEX_msg_to_type6MEX_msgX(zdev, &ap_msg, mex); if (rc) goto out_free; - init_completion(&work); + init_completion(&resp_type.work); ap_queue_message(zdev->ap_dev, &ap_msg); rc = wait_for_completion_interruptible_timeout( - &work, PCIXCC_CLEANUP_TIME); + &resp_type.work, PCIXCC_CLEANUP_TIME); if (rc > 0) rc = convert_response_ica(zdev, &ap_msg, mex->outputdata, mex->outputdatalength); @@ -478,7 +669,9 @@ static long zcrypt_pcixcc_modexpo_crt(struct zcrypt_device *zdev, struct ica_rsa_modexpo_crt *crt) { struct ap_message ap_msg; - struct completion work; + struct response_type resp_type = { + .type = PCIXCC_RESPONSE_TYPE_ICA, + }; int rc; ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL); @@ -486,14 +679,14 @@ static long zcrypt_pcixcc_modexpo_crt(struct zcrypt_device *zdev, return -ENOMEM; ap_msg.psmid = (((unsigned long long) current->pid) << 32) + atomic_inc_return(&zcrypt_step); - ap_msg.private = &work; + ap_msg.private = &resp_type; rc = ICACRT_msg_to_type6CRT_msgX(zdev, &ap_msg, crt); if (rc) goto out_free; - init_completion(&work); + init_completion(&resp_type.work); ap_queue_message(zdev->ap_dev, &ap_msg); rc = wait_for_completion_interruptible_timeout( - &work, PCIXCC_CLEANUP_TIME); + &resp_type.work, PCIXCC_CLEANUP_TIME); if (rc > 0) rc = convert_response_ica(zdev, &ap_msg, crt->outputdata, crt->outputdatalength); @@ -509,12 +702,56 @@ out_free: return rc; } +/** + * The request distributor calls this function if it picked the PCIXCC/CEX2C + * device to handle a send_cprb request. + * @zdev: pointer to zcrypt_device structure that identifies the + * PCIXCC/CEX2C device to the request distributor + * @xcRB: pointer to the send_cprb request buffer + */ +long zcrypt_pcixcc_send_cprb(struct zcrypt_device *zdev, struct ica_xcRB *xcRB) +{ + struct ap_message ap_msg; + struct response_type resp_type = { + .type = PCIXCC_RESPONSE_TYPE_XCRB, + }; + int rc; + + ap_msg.message = (void *) kmalloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE, GFP_KERNEL); + if (!ap_msg.message) + return -ENOMEM; + ap_msg.psmid = (((unsigned long long) current->pid) << 32) + + atomic_inc_return(&zcrypt_step); + ap_msg.private = &resp_type; + rc = XCRB_msg_to_type6CPRB_msgX(zdev, &ap_msg, xcRB); + if (rc) + goto out_free; + init_completion(&resp_type.work); + ap_queue_message(zdev->ap_dev, &ap_msg); + rc = wait_for_completion_interruptible_timeout( + &resp_type.work, PCIXCC_CLEANUP_TIME); + if (rc > 0) + rc = convert_response_xcrb(zdev, &ap_msg, xcRB); + else { + /* Signal pending or message timed out. */ + ap_cancel_message(zdev->ap_dev, &ap_msg); + if (rc == 0) + /* Message timed out. */ + rc = -ETIME; + } +out_free: + memset(ap_msg.message, 0x0, ap_msg.length); + kfree(ap_msg.message); + return rc; +} + /** * The crypto operations for a PCIXCC/CEX2C card. */ static struct zcrypt_ops zcrypt_pcixcc_ops = { .rsa_modexpo = zcrypt_pcixcc_modexpo, .rsa_modexpo_crt = zcrypt_pcixcc_modexpo_crt, + .send_cprb = zcrypt_pcixcc_send_cprb, }; /** diff --git a/drivers/s390/crypto/zcrypt_pcixcc.h b/drivers/s390/crypto/zcrypt_pcixcc.h index d4c44c4d7ad..a78ff307fd1 100644 --- a/drivers/s390/crypto/zcrypt_pcixcc.h +++ b/drivers/s390/crypto/zcrypt_pcixcc.h @@ -1,7 +1,7 @@ /* * linux/drivers/s390/crypto/zcrypt_pcixcc.h * - * zcrypt 2.0.0 + * zcrypt 2.1.0 * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs diff --git a/include/asm-s390/zcrypt.h b/include/asm-s390/zcrypt.h index 0d6a3e2a334..7244c68464f 100644 --- a/include/asm-s390/zcrypt.h +++ b/include/asm-s390/zcrypt.h @@ -1,7 +1,7 @@ /* * include/asm-s390/zcrypt.h * - * zcrypt 2.0.0 (user-visible header) + * zcrypt 2.1.0 (user-visible header) * * Copyright (C) 2001, 2006 IBM Corporation * Author(s): Robert Burroughs @@ -79,6 +79,83 @@ struct ica_rsa_modexpo_crt { char __user * u_mult_inv; }; +/** + * CPRBX + * Note that all shorts and ints are big-endian. + * All pointer fields are 16 bytes long, and mean nothing. + * + * A request CPRB is followed by a request_parameter_block. + * + * The request (or reply) parameter block is organized thus: + * function code + * VUD block + * key block + */ +struct ica_CPRBX { + unsigned short cprb_len; /* CPRB length 220 */ + unsigned char cprb_ver_id; /* CPRB version id. 0x02 */ + unsigned char pad_000[3]; /* Alignment pad bytes */ + unsigned char func_id[2]; /* function id 0x5432 */ + unsigned char cprb_flags[4]; /* Flags */ + unsigned int req_parml; /* request parameter buffer len */ + unsigned int req_datal; /* request data buffer */ + unsigned int rpl_msgbl; /* reply message block length */ + unsigned int rpld_parml; /* replied parameter block len */ + unsigned int rpl_datal; /* reply data block len */ + unsigned int rpld_datal; /* replied data block len */ + unsigned int req_extbl; /* request extension block len */ + unsigned char pad_001[4]; /* reserved */ + unsigned int rpld_extbl; /* replied extension block len */ + unsigned char padx000[16 - sizeof (char *)]; + unsigned char * req_parmb; /* request parm block 'address' */ + unsigned char padx001[16 - sizeof (char *)]; + unsigned char * req_datab; /* request data block 'address' */ + unsigned char padx002[16 - sizeof (char *)]; + unsigned char * rpl_parmb; /* reply parm block 'address' */ + unsigned char padx003[16 - sizeof (char *)]; + unsigned char * rpl_datab; /* reply data block 'address' */ + unsigned char padx004[16 - sizeof (char *)]; + unsigned char * req_extb; /* request extension block 'addr'*/ + unsigned char padx005[16 - sizeof (char *)]; + unsigned char * rpl_extb; /* reply extension block 'addres'*/ + unsigned short ccp_rtcode; /* server return code */ + unsigned short ccp_rscode; /* server reason code */ + unsigned int mac_data_len; /* Mac Data Length */ + unsigned char logon_id[8]; /* Logon Identifier */ + unsigned char mac_value[8]; /* Mac Value */ + unsigned char mac_content_flgs;/* Mac content flag byte */ + unsigned char pad_002; /* Alignment */ + unsigned short domain; /* Domain */ + unsigned char usage_domain[4];/* Usage domain */ + unsigned char cntrl_domain[4];/* Control domain */ + unsigned char S390enf_mask[4];/* S/390 enforcement mask */ + unsigned char pad_004[36]; /* reserved */ +}; + +/** + * xcRB + */ +struct ica_xcRB { + unsigned short agent_ID; + unsigned int user_defined; + unsigned short request_ID; + unsigned int request_control_blk_length; + unsigned char padding1[16 - sizeof (char *)]; + char __user * request_control_blk_addr; + unsigned int request_data_length; + char padding2[16 - sizeof (char *)]; + char __user * request_data_address; + unsigned int reply_control_blk_length; + char padding3[16 - sizeof (char *)]; + char __user * reply_control_blk_addr; + unsigned int reply_data_length; + char padding4[16 - sizeof (char *)]; + char __user * reply_data_addr; + unsigned short priority_window; + unsigned int status; +} __attribute__((packed)); +#define AUTOSELECT ((unsigned int)0xFFFFFFFF) + #define ZCRYPT_IOCTL_MAGIC 'z' /** @@ -187,6 +264,7 @@ struct ica_rsa_modexpo_crt { */ #define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0) #define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0) +#define ZSECSENDCPRB _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0) /* New status calls */ #define Z90STAT_TOTALCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int) -- cgit v1.2.3-70-g09d2 From f19bfb2c9b8675590fbecb43e5ce3b34ee321185 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Wed, 20 Sep 2006 15:58:44 +0200 Subject: [S390] hypfs comment cleanup. Correct some comments in the hypervisor filesystem. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- arch/s390/hypfs/hypfs.h | 2 +- arch/s390/hypfs/hypfs_diag.c | 2 +- arch/s390/hypfs/hypfs_diag.h | 2 +- arch/s390/hypfs/inode.c | 2 +- drivers/base/hypervisor.c | 3 ++- 5 files changed, 6 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/arch/s390/hypfs/hypfs.h b/arch/s390/hypfs/hypfs.h index ea5567be00f..f3dbd91965c 100644 --- a/arch/s390/hypfs/hypfs.h +++ b/arch/s390/hypfs/hypfs.h @@ -1,5 +1,5 @@ /* - * fs/hypfs/hypfs.h + * arch/s390/hypfs/hypfs.h * Hypervisor filesystem for Linux on s390. * * Copyright (C) IBM Corp. 2006 diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c index 1785bce2b91..874d761c981 100644 --- a/arch/s390/hypfs/hypfs_diag.c +++ b/arch/s390/hypfs/hypfs_diag.c @@ -1,5 +1,5 @@ /* - * fs/hypfs/hypfs_diag.c + * arch/s390/hypfs/hypfs_diag.c * Hypervisor filesystem for Linux on s390. Diag 204 and 224 * implementation. * diff --git a/arch/s390/hypfs/hypfs_diag.h b/arch/s390/hypfs/hypfs_diag.h index 793dea6b9bb..256b384aebe 100644 --- a/arch/s390/hypfs/hypfs_diag.h +++ b/arch/s390/hypfs/hypfs_diag.h @@ -1,5 +1,5 @@ /* - * fs/hypfs/hypfs_diag.h + * arch/s390/hypfs_diag.h * Hypervisor filesystem for Linux on s390. * * Copyright (C) IBM Corp. 2006 diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c index 18c091925ea..bdcad2ea1ff 100644 --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c @@ -1,5 +1,5 @@ /* - * fs/hypfs/inode.c + * arch/s390/hypfs/inode.c * Hypervisor filesystem for Linux on s390. * * Copyright (C) IBM Corp. 2006 diff --git a/drivers/base/hypervisor.c b/drivers/base/hypervisor.c index 0c85e9d6a44..7080b413ddc 100644 --- a/drivers/base/hypervisor.c +++ b/drivers/base/hypervisor.c @@ -1,8 +1,9 @@ /* * hypervisor.c - /sys/hypervisor subsystem. * - * This file is released under the GPLv2 + * Copyright (C) IBM Corp. 2006 * + * This file is released under the GPLv2 */ #include -- cgit v1.2.3-70-g09d2 From ff6b8ea68f4b7353f88b97024f28127e2148aa00 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Wed, 20 Sep 2006 15:58:49 +0200 Subject: [S390] ipl/dump on panic. It is now possible to specify a ccw/fcp dump device which is used to automatically create a system dump in case of a kernel panic. The dump device can be configured under /sys/firmware/dump. In addition it is now possible to specify a ccw/fcp device which is used for the next reboot of Linux. The reipl device can be configured under /sys/firmware/reipl. Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/Makefile | 2 +- arch/s390/kernel/head31.S | 3 + arch/s390/kernel/head64.S | 3 + arch/s390/kernel/ipl.c | 942 ++++++++++++++++++++++++++++++++++++++++++ arch/s390/kernel/reipl.S | 33 +- arch/s390/kernel/reipl64.S | 34 +- arch/s390/kernel/reipl_diag.c | 39 -- arch/s390/kernel/setup.c | 220 +--------- arch/s390/kernel/smp.c | 10 +- drivers/s390/cio/cio.c | 50 ++- include/asm-s390/cio.h | 7 + include/asm-s390/lowcore.h | 13 +- include/asm-s390/setup.h | 54 ++- 13 files changed, 1099 insertions(+), 311 deletions(-) create mode 100644 arch/s390/kernel/ipl.c delete mode 100644 arch/s390/kernel/reipl_diag.c (limited to 'drivers') diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile index 33a5069c0e1..aa978978d3d 100644 --- a/arch/s390/kernel/Makefile +++ b/arch/s390/kernel/Makefile @@ -6,7 +6,7 @@ EXTRA_AFLAGS := -traditional obj-y := bitmap.o traps.o time.o process.o \ setup.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \ - semaphore.o s390_ext.o debug.o profile.o irq.o reipl_diag.o + semaphore.o s390_ext.o debug.o profile.o irq.o ipl.o obj-y += $(if $(CONFIG_64BIT),entry64.o,entry.o) obj-y += $(if $(CONFIG_64BIT),reipl64.o,reipl.o) diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S index 0e46077d714..d8bb68a7252 100644 --- a/arch/s390/kernel/head31.S +++ b/arch/s390/kernel/head31.S @@ -38,6 +38,7 @@ startup:basr %r13,0 # get base startup_continue: basr %r13,0 # get base .LPG1: GET_IPL_DEVICE + mvi __LC_AR_MODE_ID,0 # set ESA flag (mode 0) lctl %c0,%c15,.Lctl-.LPG1(%r13) # load control registers l %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area # move IPL device to lowcore @@ -274,6 +275,8 @@ startup_continue: .Lparmaddr: .long PARMAREA .Lsccbaddr: .long .Lsccb .org 0x12000 +.globl s390_readinfo_sccb +s390_readinfo_sccb: .Lsccb: .hword 0x1000 # length, one page .byte 0x00,0x00,0x00 diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S index 3e0341acd04..c2005101fee 100644 --- a/arch/s390/kernel/head64.S +++ b/arch/s390/kernel/head64.S @@ -41,6 +41,7 @@ startup_continue: srl %r13,1 GET_IPL_DEVICE lhi %r1,1 # mode 1 = esame + mvi __LC_AR_MODE_ID,1 # set esame flag slr %r0,%r0 # set cpuid to zero sigp %r1,%r0,0x12 # switch to esame mode sam64 # switch to 64 bit mode @@ -269,6 +270,8 @@ startup_continue: .quad PARMAREA .org 0x12000 +.globl s390_readinfo_sccb +s390_readinfo_sccb: .Lsccb: .hword 0x1000 # length, one page .byte 0x00,0x00,0x00 diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c new file mode 100644 index 00000000000..105ee15a2b3 --- /dev/null +++ b/arch/s390/kernel/ipl.c @@ -0,0 +1,942 @@ +/* + * arch/s390/kernel/ipl.c + * ipl/reipl/dump support for Linux on s390. + * + * Copyright (C) IBM Corp. 2005,2006 + * Author(s): Michael Holzheu + * Heiko Carstens + * Volker Sameske + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define IPL_PARM_BLOCK_VERSION 0 + +enum ipl_type { + IPL_TYPE_NONE = 1, + IPL_TYPE_UNKNOWN = 2, + IPL_TYPE_CCW = 4, + IPL_TYPE_FCP = 8, +}; + +#define IPL_NONE_STR "none" +#define IPL_UNKNOWN_STR "unknown" +#define IPL_CCW_STR "ccw" +#define IPL_FCP_STR "fcp" + +static char *ipl_type_str(enum ipl_type type) +{ + switch (type) { + case IPL_TYPE_NONE: + return IPL_NONE_STR; + case IPL_TYPE_CCW: + return IPL_CCW_STR; + case IPL_TYPE_FCP: + return IPL_FCP_STR; + case IPL_TYPE_UNKNOWN: + default: + return IPL_UNKNOWN_STR; + } +} + +enum ipl_method { + IPL_METHOD_NONE, + IPL_METHOD_CCW_CIO, + IPL_METHOD_CCW_DIAG, + IPL_METHOD_CCW_VM, + IPL_METHOD_FCP_RO_DIAG, + IPL_METHOD_FCP_RW_DIAG, + IPL_METHOD_FCP_RO_VM, +}; + +enum shutdown_action { + SHUTDOWN_REIPL, + SHUTDOWN_DUMP, + SHUTDOWN_STOP, +}; + +#define SHUTDOWN_REIPL_STR "reipl" +#define SHUTDOWN_DUMP_STR "dump" +#define SHUTDOWN_STOP_STR "stop" + +static char *shutdown_action_str(enum shutdown_action action) +{ + switch (action) { + case SHUTDOWN_REIPL: + return SHUTDOWN_REIPL_STR; + case SHUTDOWN_DUMP: + return SHUTDOWN_DUMP_STR; + case SHUTDOWN_STOP: + return SHUTDOWN_STOP_STR; + default: + BUG(); + } +} + +enum diag308_subcode { + DIAG308_IPL = 3, + DIAG308_DUMP = 4, + DIAG308_SET = 5, + DIAG308_STORE = 6, +}; + +enum diag308_ipl_type { + DIAG308_IPL_TYPE_FCP = 0, + DIAG308_IPL_TYPE_CCW = 2, +}; + +enum diag308_opt { + DIAG308_IPL_OPT_IPL = 0x10, + DIAG308_IPL_OPT_DUMP = 0x20, +}; + +enum diag308_rc { + DIAG308_RC_OK = 1, +}; + +static int diag308_set_works = 0; + +static int reipl_capabilities = IPL_TYPE_UNKNOWN; +static enum ipl_type reipl_type = IPL_TYPE_UNKNOWN; +static enum ipl_method reipl_method = IPL_METHOD_NONE; +static struct ipl_parameter_block *reipl_block_fcp; +static struct ipl_parameter_block *reipl_block_ccw; + +static int dump_capabilities = IPL_TYPE_NONE; +static enum ipl_type dump_type = IPL_TYPE_NONE; +static enum ipl_method dump_method = IPL_METHOD_NONE; +static struct ipl_parameter_block *dump_block_fcp; +static struct ipl_parameter_block *dump_block_ccw; + +static enum shutdown_action on_panic_action = SHUTDOWN_STOP; + +static int diag308(unsigned long subcode, void *addr) +{ + register unsigned long _addr asm("0") = (unsigned long)addr; + register unsigned long _rc asm("1") = 0; + + asm volatile ( + " diag %0,%2,0x308\n" + "0: \n" + ".section __ex_table,\"a\"\n" +#ifdef CONFIG_64BIT + " .align 8\n" + " .quad 0b, 0b\n" +#else + " .align 4\n" + " .long 0b, 0b\n" +#endif + ".previous\n" + : "+d" (_addr), "+d" (_rc) + : "d" (subcode) : "cc", "memory" ); + + return _rc; +} + +/* SYSFS */ + +#define DEFINE_IPL_ATTR_RO(_prefix, _name, _format, _value) \ +static ssize_t sys_##_prefix##_##_name##_show(struct subsystem *subsys, \ + char *page) \ +{ \ + return sprintf(page, _format, _value); \ +} \ +static struct subsys_attribute sys_##_prefix##_##_name##_attr = \ + __ATTR(_name, S_IRUGO, sys_##_prefix##_##_name##_show, NULL); + +#define DEFINE_IPL_ATTR_RW(_prefix, _name, _fmt_out, _fmt_in, _value) \ +static ssize_t sys_##_prefix##_##_name##_show(struct subsystem *subsys, \ + char *page) \ +{ \ + return sprintf(page, _fmt_out, \ + (unsigned long long) _value); \ +} \ +static ssize_t sys_##_prefix##_##_name##_store(struct subsystem *subsys,\ + const char *buf, size_t len) \ +{ \ + unsigned long long value; \ + if (sscanf(buf, _fmt_in, &value) != 1) \ + return -EINVAL; \ + _value = value; \ + return len; \ +} \ +static struct subsys_attribute sys_##_prefix##_##_name##_attr = \ + __ATTR(_name,(S_IRUGO | S_IWUSR), \ + sys_##_prefix##_##_name##_show, \ + sys_##_prefix##_##_name##_store); + +static void make_attrs_ro(struct attribute **attrs) +{ + while (*attrs) { + (*attrs)->mode = S_IRUGO; + attrs++; + } +} + +/* + * ipl section + */ + +static enum ipl_type ipl_get_type(void) +{ + struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START; + + if (!IPL_DEVNO_VALID) + return IPL_TYPE_UNKNOWN; + if (!IPL_PARMBLOCK_VALID) + return IPL_TYPE_CCW; + if (ipl->hdr.version > IPL_MAX_SUPPORTED_VERSION) + return IPL_TYPE_UNKNOWN; + if (ipl->hdr.pbt != DIAG308_IPL_TYPE_FCP) + return IPL_TYPE_UNKNOWN; + return IPL_TYPE_FCP; +} + +static ssize_t ipl_type_show(struct subsystem *subsys, char *page) +{ + return sprintf(page, "%s\n", ipl_type_str(ipl_get_type())); +} + +static struct subsys_attribute sys_ipl_type_attr = __ATTR_RO(ipl_type); + +static ssize_t sys_ipl_device_show(struct subsystem *subsys, char *page) +{ + struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START; + + switch (ipl_get_type()) { + case IPL_TYPE_CCW: + return sprintf(page, "0.0.%04x\n", ipl_devno); + case IPL_TYPE_FCP: + return sprintf(page, "0.0.%04x\n", ipl->ipl_info.fcp.devno); + default: + return 0; + } +} + +static struct subsys_attribute sys_ipl_device_attr = + __ATTR(device, S_IRUGO, sys_ipl_device_show, NULL); + +static ssize_t ipl_parameter_read(struct kobject *kobj, char *buf, loff_t off, + size_t count) +{ + unsigned int size = IPL_PARMBLOCK_SIZE; + + if (off > size) + return 0; + if (off + count > size) + count = size - off; + memcpy(buf, (void *)IPL_PARMBLOCK_START + off, count); + return count; +} + +static struct bin_attribute ipl_parameter_attr = { + .attr = { + .name = "binary_parameter", + .mode = S_IRUGO, + .owner = THIS_MODULE, + }, + .size = PAGE_SIZE, + .read = &ipl_parameter_read, +}; + +static ssize_t ipl_scp_data_read(struct kobject *kobj, char *buf, loff_t off, + size_t count) +{ + unsigned int size = IPL_PARMBLOCK_START->ipl_info.fcp.scp_data_len; + void *scp_data = &IPL_PARMBLOCK_START->ipl_info.fcp.scp_data; + + if (off > size) + return 0; + if (off + count > size) + count = size - off; + memcpy(buf, scp_data + off, count); + return count; +} + +static struct bin_attribute ipl_scp_data_attr = { + .attr = { + .name = "scp_data", + .mode = S_IRUGO, + .owner = THIS_MODULE, + }, + .size = PAGE_SIZE, + .read = &ipl_scp_data_read, +}; + +/* FCP ipl device attributes */ + +DEFINE_IPL_ATTR_RO(ipl_fcp, wwpn, "0x%016llx\n", (unsigned long long) + IPL_PARMBLOCK_START->ipl_info.fcp.wwpn); +DEFINE_IPL_ATTR_RO(ipl_fcp, lun, "0x%016llx\n", (unsigned long long) + IPL_PARMBLOCK_START->ipl_info.fcp.lun); +DEFINE_IPL_ATTR_RO(ipl_fcp, bootprog, "%lld\n", (unsigned long long) + IPL_PARMBLOCK_START->ipl_info.fcp.bootprog); +DEFINE_IPL_ATTR_RO(ipl_fcp, br_lba, "%lld\n", (unsigned long long) + IPL_PARMBLOCK_START->ipl_info.fcp.br_lba); + +static struct attribute *ipl_fcp_attrs[] = { + &sys_ipl_type_attr.attr, + &sys_ipl_device_attr.attr, + &sys_ipl_fcp_wwpn_attr.attr, + &sys_ipl_fcp_lun_attr.attr, + &sys_ipl_fcp_bootprog_attr.attr, + &sys_ipl_fcp_br_lba_attr.attr, + NULL, +}; + +static struct attribute_group ipl_fcp_attr_group = { + .attrs = ipl_fcp_attrs, +}; + +/* CCW ipl device attributes */ + +static struct attribute *ipl_ccw_attrs[] = { + &sys_ipl_type_attr.attr, + &sys_ipl_device_attr.attr, + NULL, +}; + +static struct attribute_group ipl_ccw_attr_group = { + .attrs = ipl_ccw_attrs, +}; + +/* UNKNOWN ipl device attributes */ + +static struct attribute *ipl_unknown_attrs[] = { + &sys_ipl_type_attr.attr, + NULL, +}; + +static struct attribute_group ipl_unknown_attr_group = { + .attrs = ipl_unknown_attrs, +}; + +static decl_subsys(ipl, NULL, NULL); + +/* + * reipl section + */ + +/* FCP reipl device attributes */ + +DEFINE_IPL_ATTR_RW(reipl_fcp, wwpn, "0x%016llx\n", "%016llx\n", + reipl_block_fcp->ipl_info.fcp.wwpn); +DEFINE_IPL_ATTR_RW(reipl_fcp, lun, "0x%016llx\n", "%016llx\n", + reipl_block_fcp->ipl_info.fcp.lun); +DEFINE_IPL_ATTR_RW(reipl_fcp, bootprog, "%lld\n", "%lld\n", + reipl_block_fcp->ipl_info.fcp.bootprog); +DEFINE_IPL_ATTR_RW(reipl_fcp, br_lba, "%lld\n", "%lld\n", + reipl_block_fcp->ipl_info.fcp.br_lba); +DEFINE_IPL_ATTR_RW(reipl_fcp, device, "0.0.%04llx\n", "0.0.%llx\n", + reipl_block_fcp->ipl_info.fcp.devno); + +static struct attribute *reipl_fcp_attrs[] = { + &sys_reipl_fcp_device_attr.attr, + &sys_reipl_fcp_wwpn_attr.attr, + &sys_reipl_fcp_lun_attr.attr, + &sys_reipl_fcp_bootprog_attr.attr, + &sys_reipl_fcp_br_lba_attr.attr, + NULL, +}; + +static struct attribute_group reipl_fcp_attr_group = { + .name = IPL_FCP_STR, + .attrs = reipl_fcp_attrs, +}; + +/* CCW reipl device attributes */ + +DEFINE_IPL_ATTR_RW(reipl_ccw, device, "0.0.%04llx\n", "0.0.%llx\n", + reipl_block_ccw->ipl_info.ccw.devno); + +static struct attribute *reipl_ccw_attrs[] = { + &sys_reipl_ccw_device_attr.attr, + NULL, +}; + +static struct attribute_group reipl_ccw_attr_group = { + .name = IPL_CCW_STR, + .attrs = reipl_ccw_attrs, +}; + +/* reipl type */ + +static int reipl_set_type(enum ipl_type type) +{ + if (!(reipl_capabilities & type)) + return -EINVAL; + + switch(type) { + case IPL_TYPE_CCW: + if (MACHINE_IS_VM) + reipl_method = IPL_METHOD_CCW_VM; + else + reipl_method = IPL_METHOD_CCW_CIO; + break; + case IPL_TYPE_FCP: + if (diag308_set_works) + reipl_method = IPL_METHOD_FCP_RW_DIAG; + else if (MACHINE_IS_VM) + reipl_method = IPL_METHOD_FCP_RO_VM; + else + reipl_method = IPL_METHOD_FCP_RO_DIAG; + break; + default: + reipl_method = IPL_METHOD_NONE; + } + reipl_type = type; + return 0; +} + +static ssize_t reipl_type_show(struct subsystem *subsys, char *page) +{ + return sprintf(page, "%s\n", ipl_type_str(reipl_type)); +} + +static ssize_t reipl_type_store(struct subsystem *subsys, const char *buf, + size_t len) +{ + int rc = -EINVAL; + + if (strncmp(buf, IPL_CCW_STR, strlen(IPL_CCW_STR)) == 0) + rc = reipl_set_type(IPL_TYPE_CCW); + else if (strncmp(buf, IPL_FCP_STR, strlen(IPL_FCP_STR)) == 0) + rc = reipl_set_type(IPL_TYPE_FCP); + return (rc != 0) ? rc : len; +} + +static struct subsys_attribute reipl_type_attr = + __ATTR(reipl_type, 0644, reipl_type_show, reipl_type_store); + +static decl_subsys(reipl, NULL, NULL); + +/* + * dump section + */ + +/* FCP dump device attributes */ + +DEFINE_IPL_ATTR_RW(dump_fcp, wwpn, "0x%016llx\n", "%016llx\n", + dump_block_fcp->ipl_info.fcp.wwpn); +DEFINE_IPL_ATTR_RW(dump_fcp, lun, "0x%016llx\n", "%016llx\n", + dump_block_fcp->ipl_info.fcp.lun); +DEFINE_IPL_ATTR_RW(dump_fcp, bootprog, "%lld\n", "%lld\n", + dump_block_fcp->ipl_info.fcp.bootprog); +DEFINE_IPL_ATTR_RW(dump_fcp, br_lba, "%lld\n", "%lld\n", + dump_block_fcp->ipl_info.fcp.br_lba); +DEFINE_IPL_ATTR_RW(dump_fcp, device, "0.0.%04llx\n", "0.0.%llx\n", + dump_block_fcp->ipl_info.fcp.devno); + +static struct attribute *dump_fcp_attrs[] = { + &sys_dump_fcp_device_attr.attr, + &sys_dump_fcp_wwpn_attr.attr, + &sys_dump_fcp_lun_attr.attr, + &sys_dump_fcp_bootprog_attr.attr, + &sys_dump_fcp_br_lba_attr.attr, + NULL, +}; + +static struct attribute_group dump_fcp_attr_group = { + .name = IPL_FCP_STR, + .attrs = dump_fcp_attrs, +}; + +/* CCW dump device attributes */ + +DEFINE_IPL_ATTR_RW(dump_ccw, device, "0.0.%04llx\n", "0.0.%llx\n", + dump_block_ccw->ipl_info.ccw.devno); + +static struct attribute *dump_ccw_attrs[] = { + &sys_dump_ccw_device_attr.attr, + NULL, +}; + +static struct attribute_group dump_ccw_attr_group = { + .name = IPL_CCW_STR, + .attrs = dump_ccw_attrs, +}; + +/* dump type */ + +static int dump_set_type(enum ipl_type type) +{ + if (!(dump_capabilities & type)) + return -EINVAL; + switch(type) { + case IPL_TYPE_CCW: + if (MACHINE_IS_VM) + dump_method = IPL_METHOD_CCW_VM; + else + dump_method = IPL_METHOD_CCW_CIO; + break; + case IPL_TYPE_FCP: + dump_method = IPL_METHOD_FCP_RW_DIAG; + break; + default: + dump_method = IPL_METHOD_NONE; + } + dump_type = type; + return 0; +} + +static ssize_t dump_type_show(struct subsystem *subsys, char *page) +{ + return sprintf(page, "%s\n", ipl_type_str(dump_type)); +} + +static ssize_t dump_type_store(struct subsystem *subsys, const char *buf, + size_t len) +{ + int rc = -EINVAL; + + if (strncmp(buf, IPL_NONE_STR, strlen(IPL_NONE_STR)) == 0) + rc = dump_set_type(IPL_TYPE_NONE); + else if (strncmp(buf, IPL_CCW_STR, strlen(IPL_CCW_STR)) == 0) + rc = dump_set_type(IPL_TYPE_CCW); + else if (strncmp(buf, IPL_FCP_STR, strlen(IPL_FCP_STR)) == 0) + rc = dump_set_type(IPL_TYPE_FCP); + return (rc != 0) ? rc : len; +} + +static struct subsys_attribute dump_type_attr = + __ATTR(dump_type, 0644, dump_type_show, dump_type_store); + +static decl_subsys(dump, NULL, NULL); + +#ifdef CONFIG_SMP +static void dump_smp_stop_all(void) +{ + int cpu; + preempt_disable(); + for_each_online_cpu(cpu) { + if (cpu == smp_processor_id()) + continue; + while (signal_processor(cpu, sigp_stop) == sigp_busy) + udelay(10); + } + preempt_enable(); +} +#else +#define dump_smp_stop_all() do { } while (0) +#endif + +/* + * Shutdown actions section + */ + +static decl_subsys(shutdown_actions, NULL, NULL); + +/* on panic */ + +static ssize_t on_panic_show(struct subsystem *subsys, char *page) +{ + return sprintf(page, "%s\n", shutdown_action_str(on_panic_action)); +} + +static ssize_t on_panic_store(struct subsystem *subsys, const char *buf, + size_t len) +{ + if (strncmp(buf, SHUTDOWN_REIPL_STR, strlen(SHUTDOWN_REIPL_STR)) == 0) + on_panic_action = SHUTDOWN_REIPL; + else if (strncmp(buf, SHUTDOWN_DUMP_STR, + strlen(SHUTDOWN_DUMP_STR)) == 0) + on_panic_action = SHUTDOWN_DUMP; + else if (strncmp(buf, SHUTDOWN_STOP_STR, + strlen(SHUTDOWN_STOP_STR)) == 0) + on_panic_action = SHUTDOWN_STOP; + else + return -EINVAL; + + return len; +} + +static struct subsys_attribute on_panic_attr = + __ATTR(on_panic, 0644, on_panic_show, on_panic_store); + +static void print_fcp_block(struct ipl_parameter_block *fcp_block) +{ + printk(KERN_EMERG "wwpn: %016llx\n", + (unsigned long long)fcp_block->ipl_info.fcp.wwpn); + printk(KERN_EMERG "lun: %016llx\n", + (unsigned long long)fcp_block->ipl_info.fcp.lun); + printk(KERN_EMERG "bootprog: %lld\n", + (unsigned long long)fcp_block->ipl_info.fcp.bootprog); + printk(KERN_EMERG "br_lba: %lld\n", + (unsigned long long)fcp_block->ipl_info.fcp.br_lba); + printk(KERN_EMERG "device: %llx\n", + (unsigned long long)fcp_block->ipl_info.fcp.devno); + printk(KERN_EMERG "opt: %x\n", fcp_block->ipl_info.fcp.opt); +} + +void do_reipl(void) +{ + struct ccw_dev_id devid; + static char buf[100]; + + switch (reipl_type) { + case IPL_TYPE_CCW: + printk(KERN_EMERG "reboot on ccw device: 0.0.%04x\n", + reipl_block_ccw->ipl_info.ccw.devno); + break; + case IPL_TYPE_FCP: + printk(KERN_EMERG "reboot on fcp device:\n"); + print_fcp_block(reipl_block_fcp); + break; + default: + break; + } + + switch (reipl_method) { + case IPL_METHOD_CCW_CIO: + devid.devno = reipl_block_ccw->ipl_info.ccw.devno; + devid.ssid = 0; + reipl_ccw_dev(&devid); + break; + case IPL_METHOD_CCW_VM: + sprintf(buf, "IPL %X", reipl_block_ccw->ipl_info.ccw.devno); + cpcmd(buf, NULL, 0, NULL); + break; + case IPL_METHOD_CCW_DIAG: + diag308(DIAG308_SET, reipl_block_ccw); + diag308(DIAG308_IPL, NULL); + break; + case IPL_METHOD_FCP_RW_DIAG: + diag308(DIAG308_SET, reipl_block_fcp); + diag308(DIAG308_IPL, NULL); + break; + case IPL_METHOD_FCP_RO_DIAG: + diag308(DIAG308_IPL, NULL); + break; + case IPL_METHOD_FCP_RO_VM: + cpcmd("IPL", NULL, 0, NULL); + break; + case IPL_METHOD_NONE: + default: + if (MACHINE_IS_VM) + cpcmd("IPL", NULL, 0, NULL); + diag308(DIAG308_IPL, NULL); + break; + } + panic("reipl failed!\n"); +} + +static void do_dump(void) +{ + struct ccw_dev_id devid; + static char buf[100]; + + switch (dump_type) { + case IPL_TYPE_CCW: + printk(KERN_EMERG "Automatic dump on ccw device: 0.0.%04x\n", + dump_block_ccw->ipl_info.ccw.devno); + break; + case IPL_TYPE_FCP: + printk(KERN_EMERG "Automatic dump on fcp device:\n"); + print_fcp_block(dump_block_fcp); + break; + default: + return; + } + + switch (dump_method) { + case IPL_METHOD_CCW_CIO: + dump_smp_stop_all(); + devid.devno = dump_block_ccw->ipl_info.ccw.devno; + devid.ssid = 0; + reipl_ccw_dev(&devid); + break; + case IPL_METHOD_CCW_VM: + dump_smp_stop_all(); + sprintf(buf, "STORE STATUS"); + cpcmd(buf, NULL, 0, NULL); + sprintf(buf, "IPL %X", dump_block_ccw->ipl_info.ccw.devno); + cpcmd(buf, NULL, 0, NULL); + break; + case IPL_METHOD_CCW_DIAG: + diag308(DIAG308_SET, dump_block_ccw); + diag308(DIAG308_DUMP, NULL); + break; + case IPL_METHOD_FCP_RW_DIAG: + diag308(DIAG308_SET, dump_block_fcp); + diag308(DIAG308_DUMP, NULL); + break; + case IPL_METHOD_NONE: + default: + return; + } + printk(KERN_EMERG "Dump failed!\n"); +} + +/* init functions */ + +static int __init ipl_register_fcp_files(void) +{ + int rc; + + rc = sysfs_create_group(&ipl_subsys.kset.kobj, + &ipl_fcp_attr_group); + if (rc) + goto out; + rc = sysfs_create_bin_file(&ipl_subsys.kset.kobj, + &ipl_parameter_attr); + if (rc) + goto out_ipl_parm; + rc = sysfs_create_bin_file(&ipl_subsys.kset.kobj, + &ipl_scp_data_attr); + if (!rc) + goto out; + + sysfs_remove_bin_file(&ipl_subsys.kset.kobj, &ipl_parameter_attr); + +out_ipl_parm: + sysfs_remove_group(&ipl_subsys.kset.kobj, &ipl_fcp_attr_group); +out: + return rc; +} + +static int __init ipl_init(void) +{ + int rc; + + rc = firmware_register(&ipl_subsys); + if (rc) + return rc; + switch (ipl_get_type()) { + case IPL_TYPE_CCW: + rc = sysfs_create_group(&ipl_subsys.kset.kobj, + &ipl_ccw_attr_group); + break; + case IPL_TYPE_FCP: + rc = ipl_register_fcp_files(); + break; + default: + rc = sysfs_create_group(&ipl_subsys.kset.kobj, + &ipl_unknown_attr_group); + break; + } + if (rc) + firmware_unregister(&ipl_subsys); + return rc; +} + +static void __init reipl_probe(void) +{ + void *buffer; + + buffer = (void *) get_zeroed_page(GFP_KERNEL); + if (!buffer) + return; + if (diag308(DIAG308_STORE, buffer) == DIAG308_RC_OK) + diag308_set_works = 1; + free_page((unsigned long)buffer); +} + +static int __init reipl_ccw_init(void) +{ + int rc; + + reipl_block_ccw = (void *) get_zeroed_page(GFP_KERNEL); + if (!reipl_block_ccw) + return -ENOMEM; + rc = sysfs_create_group(&reipl_subsys.kset.kobj, &reipl_ccw_attr_group); + if (rc) { + free_page((unsigned long)reipl_block_ccw); + return rc; + } + reipl_block_ccw->hdr.len = IPL_PARM_BLK_CCW_LEN; + reipl_block_ccw->hdr.version = IPL_PARM_BLOCK_VERSION; + reipl_block_ccw->hdr.blk0_len = sizeof(reipl_block_ccw->ipl_info.ccw); + reipl_block_ccw->hdr.pbt = DIAG308_IPL_TYPE_CCW; + if (ipl_get_type() == IPL_TYPE_CCW) + reipl_block_ccw->ipl_info.ccw.devno = ipl_devno; + reipl_capabilities |= IPL_TYPE_CCW; + return 0; +} + +static int __init reipl_fcp_init(void) +{ + int rc; + + if ((!diag308_set_works) && (ipl_get_type() != IPL_TYPE_FCP)) + return 0; + if ((!diag308_set_works) && (ipl_get_type() == IPL_TYPE_FCP)) + make_attrs_ro(reipl_fcp_attrs); + + reipl_block_fcp = (void *) get_zeroed_page(GFP_KERNEL); + if (!reipl_block_fcp) + return -ENOMEM; + rc = sysfs_create_group(&reipl_subsys.kset.kobj, &reipl_fcp_attr_group); + if (rc) { + free_page((unsigned long)reipl_block_fcp); + return rc; + } + if (ipl_get_type() == IPL_TYPE_FCP) { + memcpy(reipl_block_fcp, IPL_PARMBLOCK_START, PAGE_SIZE); + } else { + reipl_block_fcp->hdr.len = IPL_PARM_BLK_FCP_LEN; + reipl_block_fcp->hdr.version = IPL_PARM_BLOCK_VERSION; + reipl_block_fcp->hdr.blk0_len = + sizeof(reipl_block_fcp->ipl_info.fcp); + reipl_block_fcp->hdr.pbt = DIAG308_IPL_TYPE_FCP; + reipl_block_fcp->ipl_info.fcp.opt = DIAG308_IPL_OPT_IPL; + } + reipl_capabilities |= IPL_TYPE_FCP; + return 0; +} + +static int __init reipl_init(void) +{ + int rc; + + rc = firmware_register(&reipl_subsys); + if (rc) + return rc; + rc = subsys_create_file(&reipl_subsys, &reipl_type_attr); + if (rc) { + firmware_unregister(&reipl_subsys); + return rc; + } + rc = reipl_ccw_init(); + if (rc) + return rc; + rc = reipl_fcp_init(); + if (rc) + return rc; + rc = reipl_set_type(ipl_get_type()); + if (rc) + return rc; + return 0; +} + +static int __init dump_ccw_init(void) +{ + int rc; + + dump_block_ccw = (void *) get_zeroed_page(GFP_KERNEL); + if (!dump_block_ccw) + return -ENOMEM; + rc = sysfs_create_group(&dump_subsys.kset.kobj, &dump_ccw_attr_group); + if (rc) { + free_page((unsigned long)dump_block_ccw); + return rc; + } + dump_block_ccw->hdr.len = IPL_PARM_BLK_CCW_LEN; + dump_block_ccw->hdr.version = IPL_PARM_BLOCK_VERSION; + dump_block_ccw->hdr.blk0_len = sizeof(reipl_block_ccw->ipl_info.ccw); + dump_block_ccw->hdr.pbt = DIAG308_IPL_TYPE_CCW; + dump_capabilities |= IPL_TYPE_CCW; + return 0; +} + +extern char s390_readinfo_sccb[]; + +static int __init dump_fcp_init(void) +{ + int rc; + + if(!(s390_readinfo_sccb[91] & 0x2)) + return 0; /* LDIPL DUMP is not installed */ + if (!diag308_set_works) + return 0; + dump_block_fcp = (void *) get_zeroed_page(GFP_KERNEL); + if (!dump_block_fcp) + return -ENOMEM; + rc = sysfs_create_group(&dump_subsys.kset.kobj, &dump_fcp_attr_group); + if (rc) { + free_page((unsigned long)dump_block_fcp); + return rc; + } + dump_block_fcp->hdr.len = IPL_PARM_BLK_FCP_LEN; + dump_block_fcp->hdr.version = IPL_PARM_BLOCK_VERSION; + dump_block_fcp->hdr.blk0_len = sizeof(dump_block_fcp->ipl_info.fcp); + dump_block_fcp->hdr.pbt = DIAG308_IPL_TYPE_FCP; + dump_block_fcp->ipl_info.fcp.opt = DIAG308_IPL_OPT_DUMP; + dump_capabilities |= IPL_TYPE_FCP; + return 0; +} + +#define SHUTDOWN_ON_PANIC_PRIO 0 + +static int shutdown_on_panic_notify(struct notifier_block *self, + unsigned long event, void *data) +{ + if (on_panic_action == SHUTDOWN_DUMP) + do_dump(); + else if (on_panic_action == SHUTDOWN_REIPL) + do_reipl(); + return NOTIFY_OK; +} + +static struct notifier_block shutdown_on_panic_nb = { + .notifier_call = shutdown_on_panic_notify, + .priority = SHUTDOWN_ON_PANIC_PRIO +}; + +static int __init dump_init(void) +{ + int rc; + + rc = firmware_register(&dump_subsys); + if (rc) + return rc; + rc = subsys_create_file(&dump_subsys, &dump_type_attr); + if (rc) { + firmware_unregister(&dump_subsys); + return rc; + } + rc = dump_ccw_init(); + if (rc) + return rc; + rc = dump_fcp_init(); + if (rc) + return rc; + dump_set_type(IPL_TYPE_NONE); + return 0; +} + +static int __init shutdown_actions_init(void) +{ + int rc; + + rc = firmware_register(&shutdown_actions_subsys); + if (rc) + return rc; + rc = subsys_create_file(&shutdown_actions_subsys, &on_panic_attr); + if (rc) { + firmware_unregister(&shutdown_actions_subsys); + return rc; + } + atomic_notifier_chain_register(&panic_notifier_list, + &shutdown_on_panic_nb); + return 0; +} + +static int __init s390_ipl_init(void) +{ + int rc; + + reipl_probe(); + rc = ipl_init(); + if (rc) + return rc; + rc = reipl_init(); + if (rc) + return rc; + rc = dump_init(); + if (rc) + return rc; + rc = shutdown_actions_init(); + if (rc) + return rc; + return 0; +} + +__initcall(s390_ipl_init); diff --git a/arch/s390/kernel/reipl.S b/arch/s390/kernel/reipl.S index 658e5ac484f..4562cdbce8e 100644 --- a/arch/s390/kernel/reipl.S +++ b/arch/s390/kernel/reipl.S @@ -8,13 +8,30 @@ #include - .globl do_reipl -do_reipl: basr %r13,0 + .globl do_reipl_asm +do_reipl_asm: basr %r13,0 .Lpg0: lpsw .Lnewpsw-.Lpg0(%r13) -.Lpg1: lctl %c6,%c6,.Lall-.Lpg0(%r13) - stctl %c0,%c0,.Lctlsave-.Lpg0(%r13) - ni .Lctlsave-.Lpg0(%r13),0xef - lctl %c0,%c0,.Lctlsave-.Lpg0(%r13) + + # switch off lowcore protection + +.Lpg1: stctl %c0,%c0,.Lctlsave1-.Lpg0(%r13) + stctl %c0,%c0,.Lctlsave2-.Lpg0(%r13) + ni .Lctlsave1-.Lpg0(%r13),0xef + lctl %c0,%c0,.Lctlsave1-.Lpg0(%r13) + + # do store status of all registers + + stm %r0,%r15,__LC_GPREGS_SAVE_AREA + stctl %c0,%c15,__LC_CREGS_SAVE_AREA + mvc __LC_CREGS_SAVE_AREA(4),.Lctlsave2-.Lpg0(%r13) + stam %a0,%a15,__LC_AREGS_SAVE_AREA + stpx __LC_PREFIX_SAVE_AREA + stckc .Lclkcmp-.Lpg0(%r13) + mvc __LC_CLOCK_COMP_SAVE_AREA(8),.Lclkcmp-.Lpg0(%r13) + stpt __LC_CPU_TIMER_SAVE_AREA + st %r13, __LC_PSW_SAVE_AREA+4 + + lctl %c6,%c6,.Lall-.Lpg0(%r13) lr %r1,%r2 mvc __LC_PGM_NEW_PSW(8),.Lpcnew-.Lpg0(%r13) stsch .Lschib-.Lpg0(%r13) @@ -46,9 +63,11 @@ do_reipl: basr %r13,0 .Ldisab: st %r14,.Ldispsw+4-.Lpg0(%r13) lpsw .Ldispsw-.Lpg0(%r13) .align 8 +.Lclkcmp: .quad 0x0000000000000000 .Lall: .long 0xff000000 .Lnull: .long 0x00000000 -.Lctlsave: .long 0x00000000 +.Lctlsave1: .long 0x00000000 +.Lctlsave2: .long 0x00000000 .align 8 .Lnewpsw: .long 0x00080000,0x80000000+.Lpg1 .Lpcnew: .long 0x00080000,0x80000000+.Lecs diff --git a/arch/s390/kernel/reipl64.S b/arch/s390/kernel/reipl64.S index 4d090d60f3e..95bd1e234f6 100644 --- a/arch/s390/kernel/reipl64.S +++ b/arch/s390/kernel/reipl64.S @@ -8,13 +8,30 @@ */ #include - .globl do_reipl -do_reipl: basr %r13,0 -.Lpg0: lpswe .Lnewpsw-.Lpg0(%r13) + .globl do_reipl_asm +do_reipl_asm: basr %r13,0 + + # do store status of all registers + +.Lpg0: stg %r1,.Lregsave-.Lpg0(%r13) + lghi %r1,0x1000 + stmg %r0,%r15,__LC_GPREGS_SAVE_AREA-0x1000(%r1) + lg %r0,.Lregsave-.Lpg0(%r13) + stg %r0,__LC_GPREGS_SAVE_AREA-0x1000+8(%r1) + stctg %c0,%c15,__LC_CREGS_SAVE_AREA-0x1000(%r1) + stam %a0,%a15,__LC_AREGS_SAVE_AREA-0x1000(%r1) + stpx __LC_PREFIX_SAVE_AREA-0x1000(%r1) + stfpc __LC_FP_CREG_SAVE_AREA-0x1000(%r1) + stckc .Lclkcmp-.Lpg0(%r13) + mvc __LC_CLOCK_COMP_SAVE_AREA-0x1000(8,%r1),.Lclkcmp-.Lpg0(%r13) + stpt __LC_CPU_TIMER_SAVE_AREA-0x1000(%r1) + stg %r13, __LC_PSW_SAVE_AREA-0x1000+8(%r1) + + lpswe .Lnewpsw-.Lpg0(%r13) .Lpg1: lctlg %c6,%c6,.Lall-.Lpg0(%r13) - stctg %c0,%c0,.Lctlsave-.Lpg0(%r13) - ni .Lctlsave+4-.Lpg0(%r13),0xef - lctlg %c0,%c0,.Lctlsave-.Lpg0(%r13) + stctg %c0,%c0,.Lregsave-.Lpg0(%r13) + ni .Lregsave+4-.Lpg0(%r13),0xef + lctlg %c0,%c0,.Lregsave-.Lpg0(%r13) lgr %r1,%r2 mvc __LC_PGM_NEW_PSW(16),.Lpcnew-.Lpg0(%r13) stsch .Lschib-.Lpg0(%r13) @@ -50,8 +67,9 @@ do_reipl: basr %r13,0 st %r14,.Ldispsw+12-.Lpg0(%r13) lpswe .Ldispsw-.Lpg0(%r13) .align 8 +.Lclkcmp: .quad 0x0000000000000000 .Lall: .quad 0x00000000ff000000 -.Lctlsave: .quad 0x0000000000000000 +.Lregsave: .quad 0x0000000000000000 .Lnull: .long 0x0000000000000000 .align 16 /* @@ -92,5 +110,3 @@ do_reipl: basr %r13,0 .long 0x00000000,0x00000000 .long 0x00000000,0x00000000 - - diff --git a/arch/s390/kernel/reipl_diag.c b/arch/s390/kernel/reipl_diag.c deleted file mode 100644 index 1f33951ba43..00000000000 --- a/arch/s390/kernel/reipl_diag.c +++ /dev/null @@ -1,39 +0,0 @@ -/* - * This file contains the implementation of the - * Linux re-IPL support - * - * (C) Copyright IBM Corp. 2005 - * - * Author(s): Volker Sameske (sameske@de.ibm.com) - * - */ - -#include - -static unsigned int reipl_diag_rc1; -static unsigned int reipl_diag_rc2; - -/* - * re-IPL the system using the last used IPL parameters - */ -void reipl_diag(void) -{ - asm volatile ( - " la %%r4,0\n" - " la %%r5,0\n" - " diag %%r4,%2,0x308\n" - "0:\n" - " st %%r4,%0\n" - " st %%r5,%1\n" - ".section __ex_table,\"a\"\n" -#ifdef CONFIG_64BIT - " .align 8\n" - " .quad 0b, 0b\n" -#else - " .align 4\n" - " .long 0b, 0b\n" -#endif - ".previous\n" - : "=m" (reipl_diag_rc1), "=m" (reipl_diag_rc2) - : "d" (3) : "cc", "4", "5" ); -} diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 89051e8a5d8..f2a9165ca4f 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -285,16 +285,9 @@ void (*_machine_power_off)(void) = machine_power_off_smp; /* * Reboot, halt and power_off routines for non SMP. */ -extern void reipl(unsigned long devno); -extern void reipl_diag(void); static void do_machine_restart_nonsmp(char * __unused) { - reipl_diag(); - - if (MACHINE_IS_VM) - cpcmd ("IPL", NULL, 0, NULL); - else - reipl (0x10000 | S390_lowcore.ipl_device); + do_reipl(); } static void do_machine_halt_nonsmp(void) @@ -755,214 +748,3 @@ struct seq_operations cpuinfo_op = { .show = show_cpuinfo, }; -#define DEFINE_IPL_ATTR(_name, _format, _value) \ -static ssize_t ipl_##_name##_show(struct subsystem *subsys, \ - char *page) \ -{ \ - return sprintf(page, _format, _value); \ -} \ -static struct subsys_attribute ipl_##_name##_attr = \ - __ATTR(_name, S_IRUGO, ipl_##_name##_show, NULL); - -DEFINE_IPL_ATTR(wwpn, "0x%016llx\n", (unsigned long long) - IPL_PARMBLOCK_START->fcp.wwpn); -DEFINE_IPL_ATTR(lun, "0x%016llx\n", (unsigned long long) - IPL_PARMBLOCK_START->fcp.lun); -DEFINE_IPL_ATTR(bootprog, "%lld\n", (unsigned long long) - IPL_PARMBLOCK_START->fcp.bootprog); -DEFINE_IPL_ATTR(br_lba, "%lld\n", (unsigned long long) - IPL_PARMBLOCK_START->fcp.br_lba); - -enum ipl_type_type { - ipl_type_unknown, - ipl_type_ccw, - ipl_type_fcp, -}; - -static enum ipl_type_type -get_ipl_type(void) -{ - struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START; - - if (!IPL_DEVNO_VALID) - return ipl_type_unknown; - if (!IPL_PARMBLOCK_VALID) - return ipl_type_ccw; - if (ipl->hdr.header.version > IPL_MAX_SUPPORTED_VERSION) - return ipl_type_unknown; - if (ipl->fcp.pbt != IPL_TYPE_FCP) - return ipl_type_unknown; - return ipl_type_fcp; -} - -static ssize_t -ipl_type_show(struct subsystem *subsys, char *page) -{ - switch (get_ipl_type()) { - case ipl_type_ccw: - return sprintf(page, "ccw\n"); - case ipl_type_fcp: - return sprintf(page, "fcp\n"); - default: - return sprintf(page, "unknown\n"); - } -} - -static struct subsys_attribute ipl_type_attr = __ATTR_RO(ipl_type); - -static ssize_t -ipl_device_show(struct subsystem *subsys, char *page) -{ - struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START; - - switch (get_ipl_type()) { - case ipl_type_ccw: - return sprintf(page, "0.0.%04x\n", ipl_devno); - case ipl_type_fcp: - return sprintf(page, "0.0.%04x\n", ipl->fcp.devno); - default: - return 0; - } -} - -static struct subsys_attribute ipl_device_attr = - __ATTR(device, S_IRUGO, ipl_device_show, NULL); - -static struct attribute *ipl_fcp_attrs[] = { - &ipl_type_attr.attr, - &ipl_device_attr.attr, - &ipl_wwpn_attr.attr, - &ipl_lun_attr.attr, - &ipl_bootprog_attr.attr, - &ipl_br_lba_attr.attr, - NULL, -}; - -static struct attribute_group ipl_fcp_attr_group = { - .attrs = ipl_fcp_attrs, -}; - -static struct attribute *ipl_ccw_attrs[] = { - &ipl_type_attr.attr, - &ipl_device_attr.attr, - NULL, -}; - -static struct attribute_group ipl_ccw_attr_group = { - .attrs = ipl_ccw_attrs, -}; - -static struct attribute *ipl_unknown_attrs[] = { - &ipl_type_attr.attr, - NULL, -}; - -static struct attribute_group ipl_unknown_attr_group = { - .attrs = ipl_unknown_attrs, -}; - -static ssize_t -ipl_parameter_read(struct kobject *kobj, char *buf, loff_t off, size_t count) -{ - unsigned int size = IPL_PARMBLOCK_SIZE; - - if (off > size) - return 0; - if (off + count > size) - count = size - off; - - memcpy(buf, (void *) IPL_PARMBLOCK_START + off, count); - return count; -} - -static struct bin_attribute ipl_parameter_attr = { - .attr = { - .name = "binary_parameter", - .mode = S_IRUGO, - .owner = THIS_MODULE, - }, - .size = PAGE_SIZE, - .read = &ipl_parameter_read, -}; - -static ssize_t -ipl_scp_data_read(struct kobject *kobj, char *buf, loff_t off, size_t count) -{ - unsigned int size = IPL_PARMBLOCK_START->fcp.scp_data_len; - void *scp_data = &IPL_PARMBLOCK_START->fcp.scp_data; - - if (off > size) - return 0; - if (off + count > size) - count = size - off; - - memcpy(buf, scp_data + off, count); - return count; -} - -static struct bin_attribute ipl_scp_data_attr = { - .attr = { - .name = "scp_data", - .mode = S_IRUGO, - .owner = THIS_MODULE, - }, - .size = PAGE_SIZE, - .read = &ipl_scp_data_read, -}; - -static decl_subsys(ipl, NULL, NULL); - -static int ipl_register_fcp_files(void) -{ - int rc; - - rc = sysfs_create_group(&ipl_subsys.kset.kobj, - &ipl_fcp_attr_group); - if (rc) - goto out; - rc = sysfs_create_bin_file(&ipl_subsys.kset.kobj, - &ipl_parameter_attr); - if (rc) - goto out_ipl_parm; - rc = sysfs_create_bin_file(&ipl_subsys.kset.kobj, - &ipl_scp_data_attr); - if (!rc) - goto out; - - sysfs_remove_bin_file(&ipl_subsys.kset.kobj, &ipl_parameter_attr); - -out_ipl_parm: - sysfs_remove_group(&ipl_subsys.kset.kobj, &ipl_fcp_attr_group); -out: - return rc; -} - -static int __init -ipl_device_sysfs_register(void) { - int rc; - - rc = firmware_register(&ipl_subsys); - if (rc) - goto out; - - switch (get_ipl_type()) { - case ipl_type_ccw: - rc = sysfs_create_group(&ipl_subsys.kset.kobj, - &ipl_ccw_attr_group); - break; - case ipl_type_fcp: - rc = ipl_register_fcp_files(); - break; - default: - rc = sysfs_create_group(&ipl_subsys.kset.kobj, - &ipl_unknown_attr_group); - break; - } - - if (rc) - firmware_unregister(&ipl_subsys); -out: - return rc; -} - -__initcall(ipl_device_sysfs_register); diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 8e03219eea7..b2e6f4c8d38 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -59,9 +59,6 @@ static struct task_struct *current_set[NR_CPUS]; extern char vmhalt_cmd[]; extern char vmpoff_cmd[]; -extern void reipl(unsigned long devno); -extern void reipl_diag(void); - static void smp_ext_bitcall(int, ec_bit_sig); static void smp_ext_bitcall_others(ec_bit_sig); @@ -279,12 +276,7 @@ static void do_machine_restart(void * __unused) * interrupted by an external interrupt and s390irq * locks are always held disabled). */ - reipl_diag(); - - if (MACHINE_IS_VM) - cpcmd ("IPL", NULL, 0, NULL); - else - reipl (0x10000 | S390_lowcore.ipl_device); + do_reipl(); } void machine_restart_smp(char * __unused) diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 89320c1ad82..050963f1580 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -841,14 +841,26 @@ __clear_subchannel_easy(struct subchannel_id schid) return -EBUSY; } -extern void do_reipl(unsigned long devno); -static int -__shutdown_subchannel_easy(struct subchannel_id schid, void *data) +struct sch_match_id { + struct subchannel_id schid; + struct ccw_dev_id devid; + int rc; +}; + +static int __shutdown_subchannel_easy_and_match(struct subchannel_id schid, + void *data) { struct schib schib; + struct sch_match_id *match_id = data; if (stsch_err(schid, &schib)) return -ENXIO; + if (match_id && schib.pmcw.dnv && + (schib.pmcw.dev == match_id->devid.devno) && + (schid.ssid == match_id->devid.ssid)) { + match_id->schid = schid; + match_id->rc = 0; + } if (!schib.pmcw.ena) return 0; switch(__disable_subchannel_easy(schid, &schib)) { @@ -864,18 +876,36 @@ __shutdown_subchannel_easy(struct subchannel_id schid, void *data) return 0; } -void -clear_all_subchannels(void) +static int clear_all_subchannels_and_match(struct ccw_dev_id *devid, + struct subchannel_id *schid) { + struct sch_match_id match_id; + + match_id.devid = *devid; + match_id.rc = -ENODEV; local_irq_disable(); - for_each_subchannel(__shutdown_subchannel_easy, NULL); + for_each_subchannel(__shutdown_subchannel_easy_and_match, &match_id); + if (match_id.rc == 0) + *schid = match_id.schid; + return match_id.rc; } + +void clear_all_subchannels(void) +{ + local_irq_disable(); + for_each_subchannel(__shutdown_subchannel_easy_and_match, NULL); +} + +extern void do_reipl_asm(__u32 schid); + /* Make sure all subchannels are quiet before we re-ipl an lpar. */ -void -reipl(unsigned long devno) +void reipl_ccw_dev(struct ccw_dev_id *devid) { - clear_all_subchannels(); + struct subchannel_id schid; + + if (clear_all_subchannels_and_match(devid, &schid)) + panic("IPL Device not found\n"); cio_reset_channel_paths(); - do_reipl(devno); + do_reipl_asm(*((__u32*)&schid)); } diff --git a/include/asm-s390/cio.h b/include/asm-s390/cio.h index 28fdd6e2b8b..da063cd5f0a 100644 --- a/include/asm-s390/cio.h +++ b/include/asm-s390/cio.h @@ -270,6 +270,11 @@ struct diag210 { __u32 vrdccrft : 8; /* real device feature (output) */ } __attribute__ ((packed,aligned(4))); +struct ccw_dev_id { + u8 ssid; + u16 devno; +}; + extern int diag210(struct diag210 *addr); extern void wait_cons_dev(void); @@ -280,6 +285,8 @@ extern void cio_reset_channel_paths(void); extern void css_schedule_reprobe(void); +extern void reipl_ccw_dev(struct ccw_dev_id *id); + #endif #endif diff --git a/include/asm-s390/lowcore.h b/include/asm-s390/lowcore.h index 596c8b17210..2e3d4cca5e2 100644 --- a/include/asm-s390/lowcore.h +++ b/include/asm-s390/lowcore.h @@ -47,6 +47,7 @@ #define __LC_PER_ATMID 0x096 #define __LC_PER_ADDRESS 0x098 #define __LC_PER_ACCESS_ID 0x0A1 +#define __LC_AR_MODE_ID 0x0A3 #define __LC_SUBCHANNEL_ID 0x0B8 #define __LC_SUBCHANNEL_NR 0x0BA @@ -106,18 +107,28 @@ #define __LC_INT_CLOCK 0xDE8 #endif /* __s390x__ */ -#define __LC_PANIC_MAGIC 0xE00 +#define __LC_PANIC_MAGIC 0xE00 #ifndef __s390x__ #define __LC_PFAULT_INTPARM 0x080 #define __LC_CPU_TIMER_SAVE_AREA 0x0D8 +#define __LC_CLOCK_COMP_SAVE_AREA 0x0E0 +#define __LC_PSW_SAVE_AREA 0x100 +#define __LC_PREFIX_SAVE_AREA 0x108 #define __LC_AREGS_SAVE_AREA 0x120 +#define __LC_FPREGS_SAVE_AREA 0x160 #define __LC_GPREGS_SAVE_AREA 0x180 #define __LC_CREGS_SAVE_AREA 0x1C0 #else /* __s390x__ */ #define __LC_PFAULT_INTPARM 0x11B8 +#define __LC_FPREGS_SAVE_AREA 0x1200 #define __LC_GPREGS_SAVE_AREA 0x1280 +#define __LC_PSW_SAVE_AREA 0x1300 +#define __LC_PREFIX_SAVE_AREA 0x1318 +#define __LC_FP_CREG_SAVE_AREA 0x131C +#define __LC_TODREG_SAVE_AREA 0x1324 #define __LC_CPU_TIMER_SAVE_AREA 0x1328 +#define __LC_CLOCK_COMP_SAVE_AREA 0x1331 #define __LC_AREGS_SAVE_AREA 0x1340 #define __LC_CREGS_SAVE_AREA 0x1380 #endif /* __s390x__ */ diff --git a/include/asm-s390/setup.h b/include/asm-s390/setup.h index 02c96d57f0c..4a1126d8439 100644 --- a/include/asm-s390/setup.h +++ b/include/asm-s390/setup.h @@ -68,39 +68,59 @@ extern unsigned int console_irq; #define SET_CONSOLE_3215 do { console_mode = 2; } while (0) #define SET_CONSOLE_3270 do { console_mode = 3; } while (0) -struct ipl_list_header { - u32 length; - u8 reserved[3]; + +struct ipl_list_hdr { + u32 len; + u8 reserved1[3]; u8 version; + u32 blk0_len; + u8 pbt; + u8 flags; + u16 reserved2; } __attribute__((packed)); struct ipl_block_fcp { - u32 length; - u8 pbt; - u8 reserved1[322-1]; + u8 reserved1[313-1]; + u8 opt; + u8 reserved2[3]; + u16 reserved3; u16 devno; - u8 reserved2[4]; + u8 reserved4[4]; u64 wwpn; u64 lun; u32 bootprog; - u8 reserved3[12]; + u8 reserved5[12]; u64 br_lba; u32 scp_data_len; - u8 reserved4[260]; + u8 reserved6[260]; u8 scp_data[]; } __attribute__((packed)); +struct ipl_block_ccw { + u8 load_param[8]; + u8 reserved1[84]; + u8 reserved2[2]; + u16 devno; + u8 vm_flags; + u8 reserved3[3]; + u32 vm_parm_len; +} __attribute__((packed)); + struct ipl_parameter_block { + struct ipl_list_hdr hdr; union { - u32 length; - struct ipl_list_header header; - } hdr; - struct ipl_block_fcp fcp; + struct ipl_block_fcp fcp; + struct ipl_block_ccw ccw; + } ipl_info; } __attribute__((packed)); -#define IPL_MAX_SUPPORTED_VERSION (0) +#define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \ + sizeof(struct ipl_block_fcp)) -#define IPL_TYPE_FCP (0) +#define IPL_PARM_BLK_CCW_LEN (sizeof(struct ipl_list_hdr) + \ + sizeof(struct ipl_block_ccw)) + +#define IPL_MAX_SUPPORTED_VERSION (0) /* * IPL validity flags and parameters as detected in head.S @@ -108,12 +128,14 @@ struct ipl_parameter_block { extern u32 ipl_parameter_flags; extern u16 ipl_devno; +void do_reipl(void); + #define IPL_DEVNO_VALID (ipl_parameter_flags & 1) #define IPL_PARMBLOCK_VALID (ipl_parameter_flags & 2) #define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \ IPL_PARMBLOCK_ORIGIN) -#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.length) +#define IPL_PARMBLOCK_SIZE (IPL_PARMBLOCK_START->hdr.len) #else /* __ASSEMBLY__ */ -- cgit v1.2.3-70-g09d2 From 39b083fe1c3c7b88939f6fa1b0b96e579f12e96f Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 20 Sep 2006 15:58:51 +0200 Subject: [S390] empty function defines. Use do { } while (0) constructs instead of empty defines to avoid subtle compile bugs. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/qdio.h | 16 ++++++++-------- drivers/s390/scsi/zfcp_def.h | 8 ++++---- include/asm-s390/dma.h | 2 +- include/asm-s390/io.h | 2 +- include/asm-s390/smp.h | 2 +- 5 files changed, 15 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index ceb3ab31ee0..124569362f0 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -191,49 +191,49 @@ enum qdio_irq_states { #if QDIO_VERBOSE_LEVEL>8 #define QDIO_PRINT_STUPID(x...) printk( KERN_DEBUG QDIO_PRINTK_HEADER x) #else -#define QDIO_PRINT_STUPID(x...) +#define QDIO_PRINT_STUPID(x...) do { } while (0) #endif #if QDIO_VERBOSE_LEVEL>7 #define QDIO_PRINT_ALL(x...) printk( QDIO_PRINTK_HEADER x) #else -#define QDIO_PRINT_ALL(x...) +#define QDIO_PRINT_ALL(x...) do { } while (0) #endif #if QDIO_VERBOSE_LEVEL>6 #define QDIO_PRINT_INFO(x...) printk( QDIO_PRINTK_HEADER x) #else -#define QDIO_PRINT_INFO(x...) +#define QDIO_PRINT_INFO(x...) do { } while (0) #endif #if QDIO_VERBOSE_LEVEL>5 #define QDIO_PRINT_WARN(x...) printk( QDIO_PRINTK_HEADER x) #else -#define QDIO_PRINT_WARN(x...) +#define QDIO_PRINT_WARN(x...) do { } while (0) #endif #if QDIO_VERBOSE_LEVEL>4 #define QDIO_PRINT_ERR(x...) printk( QDIO_PRINTK_HEADER x) #else -#define QDIO_PRINT_ERR(x...) +#define QDIO_PRINT_ERR(x...) do { } while (0) #endif #if QDIO_VERBOSE_LEVEL>3 #define QDIO_PRINT_CRIT(x...) printk( QDIO_PRINTK_HEADER x) #else -#define QDIO_PRINT_CRIT(x...) +#define QDIO_PRINT_CRIT(x...) do { } while (0) #endif #if QDIO_VERBOSE_LEVEL>2 #define QDIO_PRINT_ALERT(x...) printk( QDIO_PRINTK_HEADER x) #else -#define QDIO_PRINT_ALERT(x...) +#define QDIO_PRINT_ALERT(x...) do { } while (0) #endif #if QDIO_VERBOSE_LEVEL>1 #define QDIO_PRINT_EMERG(x...) printk( QDIO_PRINTK_HEADER x) #else -#define QDIO_PRINT_EMERG(x...) +#define QDIO_PRINT_EMERG(x...) do { } while (0) #endif #define HEXDUMP16(importance,header,ptr) \ diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index 94d1b74db35..7c84b3d4bd9 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -543,7 +543,7 @@ do { \ } while (0) #if ZFCP_LOG_LEVEL_LIMIT < ZFCP_LOG_LEVEL_NORMAL -# define ZFCP_LOG_NORMAL(fmt, args...) +# define ZFCP_LOG_NORMAL(fmt, args...) do { } while (0) #else # define ZFCP_LOG_NORMAL(fmt, args...) \ do { \ @@ -553,7 +553,7 @@ do { \ #endif #if ZFCP_LOG_LEVEL_LIMIT < ZFCP_LOG_LEVEL_INFO -# define ZFCP_LOG_INFO(fmt, args...) +# define ZFCP_LOG_INFO(fmt, args...) do { } while (0) #else # define ZFCP_LOG_INFO(fmt, args...) \ do { \ @@ -563,14 +563,14 @@ do { \ #endif #if ZFCP_LOG_LEVEL_LIMIT < ZFCP_LOG_LEVEL_DEBUG -# define ZFCP_LOG_DEBUG(fmt, args...) +# define ZFCP_LOG_DEBUG(fmt, args...) do { } while (0) #else # define ZFCP_LOG_DEBUG(fmt, args...) \ ZFCP_LOG(ZFCP_LOG_LEVEL_DEBUG, fmt , ##args) #endif #if ZFCP_LOG_LEVEL_LIMIT < ZFCP_LOG_LEVEL_TRACE -# define ZFCP_LOG_TRACE(fmt, args...) +# define ZFCP_LOG_TRACE(fmt, args...) do { } while (0) #else # define ZFCP_LOG_TRACE(fmt, args...) \ ZFCP_LOG(ZFCP_LOG_LEVEL_TRACE, fmt , ##args) diff --git a/include/asm-s390/dma.h b/include/asm-s390/dma.h index 02720c449cd..7425c6af6cd 100644 --- a/include/asm-s390/dma.h +++ b/include/asm-s390/dma.h @@ -11,6 +11,6 @@ #define MAX_DMA_ADDRESS 0x80000000 -#define free_dma(x) +#define free_dma(x) do { } while (0) #endif /* _ASM_DMA_H */ diff --git a/include/asm-s390/io.h b/include/asm-s390/io.h index d4614b35f42..a6cc27e7700 100644 --- a/include/asm-s390/io.h +++ b/include/asm-s390/io.h @@ -116,7 +116,7 @@ extern void iounmap(void *addr); #define outb(x,addr) ((void) writeb(x,addr)) #define outb_p(x,addr) outb(x,addr) -#define mmiowb() +#define mmiowb() do { } while (0) /* * Convert a physical pointer to a virtual kernel pointer for /dev/mem diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h index 657646054c5..9fb02e9779c 100644 --- a/include/asm-s390/smp.h +++ b/include/asm-s390/smp.h @@ -104,7 +104,7 @@ smp_call_function_on(void (*func) (void *info), void *info, #define smp_cpu_not_running(cpu) 1 #define smp_get_cpu(cpu) ({ 0; }) #define smp_put_cpu(cpu) ({ 0; }) -#define smp_setup_cpu_possible_map() +#define smp_setup_cpu_possible_map() do { } while (0) #endif #endif -- cgit v1.2.3-70-g09d2 From 47addc84b450fd5e391ab118e178645cb0bbd89d Mon Sep 17 00:00:00 2001 From: Frank Pavlic Date: Wed, 20 Sep 2006 15:59:03 +0200 Subject: [S390] qdio_get_micros return value. qdio_get_micros is supposed to return microseconds. The get_clock() return value needs to be shifted by 12 to get to microseconds. Signed-off-by: Frank Pavlic Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/qdio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c index 7c93a8798d2..16e3715d5c0 100644 --- a/drivers/s390/cio/qdio.c +++ b/drivers/s390/cio/qdio.c @@ -115,7 +115,7 @@ qdio_min(int a,int b) static inline __u64 qdio_get_micros(void) { - return (get_clock() >> 10); /* time>>12 is microseconds */ + return (get_clock() >> 12); /* time>>12 is microseconds */ } /* -- cgit v1.2.3-70-g09d2 From a00bfd7147c0c5c04a59f7adcb0e6d8948b90a6e Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:59:05 +0200 Subject: [S390] dasd deadlock after state change pending interrupt. The dasd_device_from_cdev function is called from interrupt context to get the struct dasd_device associated with a ccw device. The driver_data of the ccw device points to the dasd_devmap structure which contains the pointer to the dasd_device structure. The lock that protects the dasd_devmap structure is acquire with out irqsave. To prevent the deadlock in dasd_device_from_cdev if it is called from interrupt context the dependency to the dasd_devmap structure needs to be removed. Let the driver_data of the ccw device point to the dasd_device structure directly and use the ccw device lock to protect the access. Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd.c | 4 +-- drivers/s390/block/dasd_devmap.c | 74 ++++++++++++++++++++++++++-------------- drivers/s390/block/dasd_int.h | 1 + 3 files changed, 51 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 25c1ef6dfd4..3cd87f85f70 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -893,7 +893,7 @@ dasd_handle_killed_request(struct ccw_device *cdev, unsigned long intparm) device = (struct dasd_device *) cqr->device; if (device == NULL || - device != dasd_device_from_cdev(cdev) || + device != dasd_device_from_cdev_locked(cdev) || strncmp(device->discipline->ebcname, (char *) &cqr->magic, 4)) { MESSAGE(KERN_DEBUG, "invalid device in request: bus_id %s", cdev->dev.bus_id); @@ -970,7 +970,7 @@ dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, /* first of all check for state change pending interrupt */ mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP; if ((irb->scsw.dstat & mask) == mask) { - device = dasd_device_from_cdev(cdev); + device = dasd_device_from_cdev_locked(cdev); if (!IS_ERR(device)) { dasd_handle_state_change_pending(device); dasd_put_device(device); diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 9af02c79ce8..80cf0999465 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -523,17 +523,17 @@ dasd_create_device(struct ccw_device *cdev) { struct dasd_devmap *devmap; struct dasd_device *device; + unsigned long flags; int rc; devmap = dasd_devmap_from_cdev(cdev); if (IS_ERR(devmap)) return (void *) devmap; - cdev->dev.driver_data = devmap; device = dasd_alloc_device(); if (IS_ERR(device)) return device; - atomic_set(&device->ref_count, 2); + atomic_set(&device->ref_count, 3); spin_lock(&dasd_devmap_lock); if (!devmap->device) { @@ -552,6 +552,11 @@ dasd_create_device(struct ccw_device *cdev) dasd_free_device(device); return ERR_PTR(rc); } + + spin_lock_irqsave(get_ccwdev_lock(cdev), flags); + cdev->dev.driver_data = device; + spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags); + return device; } @@ -569,6 +574,7 @@ dasd_delete_device(struct dasd_device *device) { struct ccw_device *cdev; struct dasd_devmap *devmap; + unsigned long flags; /* First remove device pointer from devmap. */ devmap = dasd_find_busid(device->cdev->dev.bus_id); @@ -582,9 +588,16 @@ dasd_delete_device(struct dasd_device *device) devmap->device = NULL; spin_unlock(&dasd_devmap_lock); - /* Drop ref_count by 2, one for the devmap reference and - * one for the passed reference. */ - atomic_sub(2, &device->ref_count); + /* Disconnect dasd_device structure from ccw_device structure. */ + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + device->cdev->dev.driver_data = NULL; + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); + + /* + * Drop ref_count by 3, one for the devmap reference, one for + * the cdev reference and one for the passed reference. + */ + atomic_sub(3, &device->ref_count); /* Wait for reference counter to drop to zero. */ wait_event(dasd_delete_wq, atomic_read(&device->ref_count) == 0); @@ -593,9 +606,6 @@ dasd_delete_device(struct dasd_device *device) cdev = device->cdev; device->cdev = NULL; - /* Disconnect dasd_devmap structure from ccw_device structure. */ - cdev->dev.driver_data = NULL; - /* Put ccw_device structure. */ put_device(&cdev->dev); @@ -613,23 +623,34 @@ dasd_put_device_wake(struct dasd_device *device) wake_up(&dasd_delete_wq); } +/* + * Return dasd_device structure associated with cdev. + * This function needs to be called with the ccw device + * lock held. It can be used from interrupt context. + */ +struct dasd_device * +dasd_device_from_cdev_locked(struct ccw_device *cdev) +{ + struct dasd_device *device = cdev->dev.driver_data; + + if (!device) + return ERR_PTR(-ENODEV); + dasd_get_device(device); + return device; +} + /* * Return dasd_device structure associated with cdev. */ struct dasd_device * dasd_device_from_cdev(struct ccw_device *cdev) { - struct dasd_devmap *devmap; struct dasd_device *device; + unsigned long flags; - device = ERR_PTR(-ENODEV); - spin_lock(&dasd_devmap_lock); - devmap = cdev->dev.driver_data; - if (devmap && devmap->device) { - device = devmap->device; - dasd_get_device(device); - } - spin_unlock(&dasd_devmap_lock); + spin_lock_irqsave(get_ccwdev_lock(cdev), flags); + device = dasd_device_from_cdev_locked(cdev); + spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags); return device; } @@ -730,16 +751,17 @@ static ssize_t dasd_discipline_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct dasd_devmap *devmap; - char *dname; + struct dasd_device *device; + ssize_t len; - spin_lock(&dasd_devmap_lock); - dname = "none"; - devmap = dev->driver_data; - if (devmap && devmap->device && devmap->device->discipline) - dname = devmap->device->discipline->name; - spin_unlock(&dasd_devmap_lock); - return snprintf(buf, PAGE_SIZE, "%s\n", dname); + device = dasd_device_from_cdev(to_ccwdev(dev)); + if (!IS_ERR(device) && device->discipline) { + len = snprintf(buf, PAGE_SIZE, "%s\n", + device->discipline->name); + dasd_put_device(device); + } else + len = snprintf(buf, PAGE_SIZE, "none\n"); + return len; } static DEVICE_ATTR(discipline, 0444, dasd_discipline_show, NULL); diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index 3ccf06d28ba..9f52004f6fc 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -534,6 +534,7 @@ int dasd_add_sysfs_files(struct ccw_device *); void dasd_remove_sysfs_files(struct ccw_device *); struct dasd_device *dasd_device_from_cdev(struct ccw_device *); +struct dasd_device *dasd_device_from_cdev_locked(struct ccw_device *); struct dasd_device *dasd_device_from_devindex(int); int dasd_parse(void); -- cgit v1.2.3-70-g09d2 From b0035f127e007ea0afc8baad740093eb124f7b0b Mon Sep 17 00:00:00 2001 From: Horst Hummel Date: Wed, 20 Sep 2006 15:59:07 +0200 Subject: [S390] dasd default debug level. Enhanced default DBF level to get most important messages in debug feature files. Signed-off-by: Horst Hummel Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 3cd87f85f70..d0647d116ea 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -184,7 +184,7 @@ dasd_state_known_to_basic(struct dasd_device * device) device->debug_area = debug_register(device->cdev->dev.bus_id, 1, 2, 8 * sizeof (long)); debug_register_view(device->debug_area, &debug_sprintf_view); - debug_set_level(device->debug_area, DBF_EMERG); + debug_set_level(device->debug_area, DBF_WARNING); DBF_DEV_EVENT(DBF_EMERG, device, "%s", "debug area created"); device->state = DASD_STATE_BASIC; @@ -2169,7 +2169,7 @@ dasd_init(void) goto failed; } debug_register_view(dasd_debug_area, &debug_sprintf_view); - debug_set_level(dasd_debug_area, DBF_EMERG); + debug_set_level(dasd_debug_area, DBF_WARNING); DBF_EVENT(DBF_EMERG, "%s", "debug area created"); -- cgit v1.2.3-70-g09d2 From 0fee644ada12c524abbf723132fbea6a082ecfc2 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Wed, 20 Sep 2006 15:59:10 +0200 Subject: [S390] cleanup sysinfo and add system z9 specific extensions. With System z9 additional fields have been added to the output of the store system information instruction. This patch adds the new model information field and the alternate cpu capability fields to the output of /proc/sysinfo. While we at it clean up the code as well. Signed-off-by: Martin Schwidefsky --- drivers/s390/sysinfo.c | 455 +++++++++++++++++++++++++------------------------ 1 file changed, 231 insertions(+), 224 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/sysinfo.c b/drivers/s390/sysinfo.c index d1c1e75bfd6..1e788e815ce 100644 --- a/drivers/s390/sysinfo.c +++ b/drivers/s390/sysinfo.c @@ -11,19 +11,18 @@ #include #include -struct sysinfo_1_1_1 -{ +struct sysinfo_1_1_1 { char reserved_0[32]; char manufacturer[16]; char type[4]; char reserved_1[12]; - char model[16]; + char model_capacity[16]; char sequence[16]; char plant[4]; + char model[16]; }; -struct sysinfo_1_2_1 -{ +struct sysinfo_1_2_1 { char reserved_0[80]; char sequence[16]; char plant[4]; @@ -31,9 +30,12 @@ struct sysinfo_1_2_1 unsigned short cpu_address; }; -struct sysinfo_1_2_2 -{ - char reserved_0[32]; +struct sysinfo_1_2_2 { + char format; + char reserved_0[1]; + unsigned short acc_offset; + char reserved_1[24]; + unsigned int secondary_capability; unsigned int capability; unsigned short cpus_total; unsigned short cpus_configured; @@ -42,8 +44,12 @@ struct sysinfo_1_2_2 unsigned short adjustment[0]; }; -struct sysinfo_2_2_1 -{ +struct sysinfo_1_2_2_extension { + unsigned int alt_capability; + unsigned short alt_adjustment[0]; +}; + +struct sysinfo_2_2_1 { char reserved_0[80]; char sequence[16]; char plant[4]; @@ -51,15 +57,11 @@ struct sysinfo_2_2_1 unsigned short cpu_address; }; -struct sysinfo_2_2_2 -{ +struct sysinfo_2_2_2 { char reserved_0[32]; unsigned short lpar_number; char reserved_1; unsigned char characteristics; - #define LPAR_CHAR_DEDICATED (1 << 7) - #define LPAR_CHAR_SHARED (1 << 6) - #define LPAR_CHAR_LIMITED (1 << 5) unsigned short cpus_total; unsigned short cpus_configured; unsigned short cpus_standby; @@ -71,12 +73,14 @@ struct sysinfo_2_2_2 unsigned short cpus_shared; }; -struct sysinfo_3_2_2 -{ +#define LPAR_CHAR_DEDICATED (1 << 7) +#define LPAR_CHAR_SHARED (1 << 6) +#define LPAR_CHAR_LIMITED (1 << 5) + +struct sysinfo_3_2_2 { char reserved_0[31]; unsigned char count; - struct - { + struct { char reserved_0[4]; unsigned short cpus_total; unsigned short cpus_configured; @@ -90,136 +94,223 @@ struct sysinfo_3_2_2 } vm[8]; }; -union s390_sysinfo +static inline int stsi(void *sysinfo, int fc, int sel1, int sel2) { - struct sysinfo_1_1_1 sysinfo_1_1_1; - struct sysinfo_1_2_1 sysinfo_1_2_1; - struct sysinfo_1_2_2 sysinfo_1_2_2; - struct sysinfo_2_2_1 sysinfo_2_2_1; - struct sysinfo_2_2_2 sysinfo_2_2_2; - struct sysinfo_3_2_2 sysinfo_3_2_2; -}; - -static inline int stsi (void *sysinfo, - int fc, int sel1, int sel2) -{ - int cc, retv; - -#ifndef CONFIG_64BIT - __asm__ __volatile__ ( "lr\t0,%2\n" - "\tlr\t1,%3\n" - "\tstsi\t0(%4)\n" - "0:\tipm\t%0\n" - "\tsrl\t%0,28\n" - "1:lr\t%1,0\n" - ".section .fixup,\"ax\"\n" - "2:\tlhi\t%0,3\n" - "\tbras\t1,3f\n" - "\t.long 1b\n" - "3:\tl\t1,0(1)\n" - "\tbr\t1\n" - ".previous\n" - ".section __ex_table,\"a\"\n" - "\t.align 4\n" - "\t.long 0b,2b\n" - ".previous\n" - : "=d" (cc), "=d" (retv) - : "d" ((fc << 28) | sel1), "d" (sel2), "a" (sysinfo) - : "cc", "memory", "0", "1" ); -#else - __asm__ __volatile__ ( "lr\t0,%2\n" - "lr\t1,%3\n" - "\tstsi\t0(%4)\n" - "0:\tipm\t%0\n" - "\tsrl\t%0,28\n" - "1:lr\t%1,0\n" - ".section .fixup,\"ax\"\n" - "2:\tlhi\t%0,3\n" - "\tjg\t1b\n" - ".previous\n" - ".section __ex_table,\"a\"\n" - "\t.align 8\n" - "\t.quad 0b,2b\n" - ".previous\n" - : "=d" (cc), "=d" (retv) - : "d" ((fc << 28) | sel1), "d" (sel2), "a" (sysinfo) - : "cc", "memory", "0", "1" ); -#endif - - return cc? -1 : retv; + register int r0 asm("0") = (fc << 28) | sel1; + register int r1 asm("1") = sel2; + + asm volatile( + " stsi 0(%2)\n" + "0: jz 2f\n" + "1: lhi %0,%3\n" + "2:\n" + EX_TABLE(0b,1b) + : "+d" (r0) : "d" (r1), "a" (sysinfo), "K" (-ENOSYS) + : "cc", "memory" ); + return r0; } -static inline int stsi_0 (void) +static inline int stsi_0(void) { int rc = stsi (NULL, 0, 0, 0); - return rc == -1 ? rc : (((unsigned int)rc) >> 28); + return rc == -ENOSYS ? rc : (((unsigned int) rc) >> 28); } -static inline int stsi_1_1_1 (struct sysinfo_1_1_1 *info) +static int stsi_1_1_1(struct sysinfo_1_1_1 *info, char *page, int len) { - int rc = stsi (info, 1, 1, 1); - if (rc != -1) - { - EBCASC (info->manufacturer, sizeof(info->manufacturer)); - EBCASC (info->type, sizeof(info->type)); - EBCASC (info->model, sizeof(info->model)); - EBCASC (info->sequence, sizeof(info->sequence)); - EBCASC (info->plant, sizeof(info->plant)); - } - return rc == -1 ? rc : 0; + if (stsi(info, 1, 1, 1) == -ENOSYS) + return len; + + EBCASC(info->manufacturer, sizeof(info->manufacturer)); + EBCASC(info->type, sizeof(info->type)); + EBCASC(info->model, sizeof(info->model)); + EBCASC(info->sequence, sizeof(info->sequence)); + EBCASC(info->plant, sizeof(info->plant)); + EBCASC(info->model_capacity, sizeof(info->model_capacity)); + len += sprintf(page + len, "Manufacturer: %-16.16s\n", + info->manufacturer); + len += sprintf(page + len, "Type: %-4.4s\n", + info->type); + if (info->model[0] != '\0') + /* + * Sigh: the model field has been renamed with System z9 + * to model_capacity and a new model field has been added + * after the plant field. To avoid confusing older programs + * the "Model:" prints "model_capacity model" or just + * "model_capacity" if the model string is empty . + */ + len += sprintf(page + len, + "Model: %-16.16s %-16.16s\n", + info->model_capacity, info->model); + else + len += sprintf(page + len, "Model: %-16.16s\n", + info->model_capacity); + len += sprintf(page + len, "Sequence Code: %-16.16s\n", + info->sequence); + len += sprintf(page + len, "Plant: %-4.4s\n", + info->plant); + len += sprintf(page + len, "Model Capacity: %-16.16s\n", + info->model_capacity); + return len; } -static inline int stsi_1_2_1 (struct sysinfo_1_2_1 *info) +#if 0 /* Currently unused */ +static int stsi_1_2_1(struct sysinfo_1_2_1 *info, char *page, int len) { - int rc = stsi (info, 1, 2, 1); - if (rc != -1) - { - EBCASC (info->sequence, sizeof(info->sequence)); - EBCASC (info->plant, sizeof(info->plant)); - } - return rc == -1 ? rc : 0; + if (stsi(info, 1, 2, 1) == -ENOSYS) + return len; + + len += sprintf(page + len, "\n"); + EBCASC(info->sequence, sizeof(info->sequence)); + EBCASC(info->plant, sizeof(info->plant)); + len += sprintf(page + len, "Sequence Code of CPU: %-16.16s\n", + info->sequence); + len += sprintf(page + len, "Plant of CPU: %-16.16s\n", + info->plant); + return len; } +#endif -static inline int stsi_1_2_2 (struct sysinfo_1_2_2 *info) +static int stsi_1_2_2(struct sysinfo_1_2_2 *info, char *page, int len) { - int rc = stsi (info, 1, 2, 2); - return rc == -1 ? rc : 0; + struct sysinfo_1_2_2_extension *ext; + int i; + + if (stsi(info, 1, 2, 2) == -ENOSYS) + return len; + ext = (struct sysinfo_1_2_2_extension *) + ((unsigned long) info + info->acc_offset); + + len += sprintf(page + len, "\n"); + len += sprintf(page + len, "CPUs Total: %d\n", + info->cpus_total); + len += sprintf(page + len, "CPUs Configured: %d\n", + info->cpus_configured); + len += sprintf(page + len, "CPUs Standby: %d\n", + info->cpus_standby); + len += sprintf(page + len, "CPUs Reserved: %d\n", + info->cpus_reserved); + + if (info->format == 1) { + /* + * Sigh 2. According to the specification the alternate + * capability field is a 32 bit floating point number + * if the higher order 8 bits are not zero. Printing + * a floating point number in the kernel is a no-no, + * always print the number as 32 bit unsigned integer. + * The user-space needs to know about the stange + * encoding of the alternate cpu capability. + */ + len += sprintf(page + len, "Capability: %u %u\n", + info->capability, ext->alt_capability); + for (i = 2; i <= info->cpus_total; i++) + len += sprintf(page + len, + "Adjustment %02d-way: %u %u\n", + i, info->adjustment[i-2], + ext->alt_adjustment[i-2]); + + } else { + len += sprintf(page + len, "Capability: %u\n", + info->capability); + for (i = 2; i <= info->cpus_total; i++) + len += sprintf(page + len, + "Adjustment %02d-way: %u\n", + i, info->adjustment[i-2]); + } + + if (info->secondary_capability != 0) + len += sprintf(page + len, "Secondary Capability: %d\n", + info->secondary_capability); + + return len; } -static inline int stsi_2_2_1 (struct sysinfo_2_2_1 *info) +#if 0 /* Currently unused */ +static int stsi_2_2_1(struct sysinfo_2_2_1 *info, char *page, int len) { - int rc = stsi (info, 2, 2, 1); - if (rc != -1) - { - EBCASC (info->sequence, sizeof(info->sequence)); - EBCASC (info->plant, sizeof(info->plant)); - } - return rc == -1 ? rc : 0; + if (stsi(info, 2, 2, 1) == -ENOSYS) + return len; + + len += sprintf(page + len, "\n"); + EBCASC (info->sequence, sizeof(info->sequence)); + EBCASC (info->plant, sizeof(info->plant)); + len += sprintf(page + len, "Sequence Code of logical CPU: %-16.16s\n", + info->sequence); + len += sprintf(page + len, "Plant of logical CPU: %-16.16s\n", + info->plant); + return len; } +#endif -static inline int stsi_2_2_2 (struct sysinfo_2_2_2 *info) +static int stsi_2_2_2(struct sysinfo_2_2_2 *info, char *page, int len) { - int rc = stsi (info, 2, 2, 2); - if (rc != -1) - { - EBCASC (info->name, sizeof(info->name)); - } - return rc == -1 ? rc : 0; + if (stsi(info, 2, 2, 2) == -ENOSYS) + return len; + + EBCASC (info->name, sizeof(info->name)); + + len += sprintf(page + len, "\n"); + len += sprintf(page + len, "LPAR Number: %d\n", + info->lpar_number); + + len += sprintf(page + len, "LPAR Characteristics: "); + if (info->characteristics & LPAR_CHAR_DEDICATED) + len += sprintf(page + len, "Dedicated "); + if (info->characteristics & LPAR_CHAR_SHARED) + len += sprintf(page + len, "Shared "); + if (info->characteristics & LPAR_CHAR_LIMITED) + len += sprintf(page + len, "Limited "); + len += sprintf(page + len, "\n"); + + len += sprintf(page + len, "LPAR Name: %-8.8s\n", + info->name); + + len += sprintf(page + len, "LPAR Adjustment: %d\n", + info->caf); + + len += sprintf(page + len, "LPAR CPUs Total: %d\n", + info->cpus_total); + len += sprintf(page + len, "LPAR CPUs Configured: %d\n", + info->cpus_configured); + len += sprintf(page + len, "LPAR CPUs Standby: %d\n", + info->cpus_standby); + len += sprintf(page + len, "LPAR CPUs Reserved: %d\n", + info->cpus_reserved); + len += sprintf(page + len, "LPAR CPUs Dedicated: %d\n", + info->cpus_dedicated); + len += sprintf(page + len, "LPAR CPUs Shared: %d\n", + info->cpus_shared); + return len; } -static inline int stsi_3_2_2 (struct sysinfo_3_2_2 *info) +static int stsi_3_2_2(struct sysinfo_3_2_2 *info, char *page, int len) { - int rc = stsi (info, 3, 2, 2); - if (rc != -1) - { - int i; - for (i = 0; i < info->count; i++) - { - EBCASC (info->vm[i].name, sizeof(info->vm[i].name)); - EBCASC (info->vm[i].cpi, sizeof(info->vm[i].cpi)); - } + int i; + + if (stsi(info, 3, 2, 2) == -ENOSYS) + return len; + for (i = 0; i < info->count; i++) { + EBCASC (info->vm[i].name, sizeof(info->vm[i].name)); + EBCASC (info->vm[i].cpi, sizeof(info->vm[i].cpi)); + len += sprintf(page + len, "\n"); + len += sprintf(page + len, "VM%02d Name: %-8.8s\n", + i, info->vm[i].name); + len += sprintf(page + len, "VM%02d Control Program: %-16.16s\n", + i, info->vm[i].cpi); + + len += sprintf(page + len, "VM%02d Adjustment: %d\n", + i, info->vm[i].caf); + + len += sprintf(page + len, "VM%02d CPUs Total: %d\n", + i, info->vm[i].cpus_total); + len += sprintf(page + len, "VM%02d CPUs Configured: %d\n", + i, info->vm[i].cpus_configured); + len += sprintf(page + len, "VM%02d CPUs Standby: %d\n", + i, info->vm[i].cpus_standby); + len += sprintf(page + len, "VM%02d CPUs Reserved: %d\n", + i, info->vm[i].cpus_reserved); } - return rc == -1 ? rc : 0; + return len; } @@ -227,118 +318,34 @@ static int proc_read_sysinfo(char *page, char **start, off_t off, int count, int *eof, void *data) { - unsigned long info_page = get_zeroed_page (GFP_KERNEL); - union s390_sysinfo *info = (union s390_sysinfo *) info_page; - int len = 0; - int level; - int i; + unsigned long info = get_zeroed_page (GFP_KERNEL); + int level, len; if (!info) return 0; - level = stsi_0 (); - - if (level >= 1 && stsi_1_1_1 (&info->sysinfo_1_1_1) == 0) - { - len += sprintf (page+len, "Manufacturer: %-16.16s\n", - info->sysinfo_1_1_1.manufacturer); - len += sprintf (page+len, "Type: %-4.4s\n", - info->sysinfo_1_1_1.type); - len += sprintf (page+len, "Model: %-16.16s\n", - info->sysinfo_1_1_1.model); - len += sprintf (page+len, "Sequence Code: %-16.16s\n", - info->sysinfo_1_1_1.sequence); - len += sprintf (page+len, "Plant: %-4.4s\n", - info->sysinfo_1_1_1.plant); - } - - if (level >= 1 && stsi_1_2_2 (&info->sysinfo_1_2_2) == 0) - { - len += sprintf (page+len, "\n"); - len += sprintf (page+len, "CPUs Total: %d\n", - info->sysinfo_1_2_2.cpus_total); - len += sprintf (page+len, "CPUs Configured: %d\n", - info->sysinfo_1_2_2.cpus_configured); - len += sprintf (page+len, "CPUs Standby: %d\n", - info->sysinfo_1_2_2.cpus_standby); - len += sprintf (page+len, "CPUs Reserved: %d\n", - info->sysinfo_1_2_2.cpus_reserved); - - len += sprintf (page+len, "Capability: %d\n", - info->sysinfo_1_2_2.capability); + len = 0; + level = stsi_0(); + if (level >= 1) + len = stsi_1_1_1((struct sysinfo_1_1_1 *) info, page, len); - for (i = 2; i <= info->sysinfo_1_2_2.cpus_total; i++) - len += sprintf (page+len, "Adjustment %02d-way: %d\n", - i, info->sysinfo_1_2_2.adjustment[i-2]); - } + if (level >= 1) + len = stsi_1_2_2((struct sysinfo_1_2_2 *) info, page, len); - if (level >= 2 && stsi_2_2_2 (&info->sysinfo_2_2_2) == 0) - { - len += sprintf (page+len, "\n"); - len += sprintf (page+len, "LPAR Number: %d\n", - info->sysinfo_2_2_2.lpar_number); - - len += sprintf (page+len, "LPAR Characteristics: "); - if (info->sysinfo_2_2_2.characteristics & LPAR_CHAR_DEDICATED) - len += sprintf (page+len, "Dedicated "); - if (info->sysinfo_2_2_2.characteristics & LPAR_CHAR_SHARED) - len += sprintf (page+len, "Shared "); - if (info->sysinfo_2_2_2.characteristics & LPAR_CHAR_LIMITED) - len += sprintf (page+len, "Limited "); - len += sprintf (page+len, "\n"); - - len += sprintf (page+len, "LPAR Name: %-8.8s\n", - info->sysinfo_2_2_2.name); - - len += sprintf (page+len, "LPAR Adjustment: %d\n", - info->sysinfo_2_2_2.caf); - - len += sprintf (page+len, "LPAR CPUs Total: %d\n", - info->sysinfo_2_2_2.cpus_total); - len += sprintf (page+len, "LPAR CPUs Configured: %d\n", - info->sysinfo_2_2_2.cpus_configured); - len += sprintf (page+len, "LPAR CPUs Standby: %d\n", - info->sysinfo_2_2_2.cpus_standby); - len += sprintf (page+len, "LPAR CPUs Reserved: %d\n", - info->sysinfo_2_2_2.cpus_reserved); - len += sprintf (page+len, "LPAR CPUs Dedicated: %d\n", - info->sysinfo_2_2_2.cpus_dedicated); - len += sprintf (page+len, "LPAR CPUs Shared: %d\n", - info->sysinfo_2_2_2.cpus_shared); - } + if (level >= 2) + len = stsi_2_2_2((struct sysinfo_2_2_2 *) info, page, len); - if (level >= 3 && stsi_3_2_2 (&info->sysinfo_3_2_2) == 0) - { - for (i = 0; i < info->sysinfo_3_2_2.count; i++) - { - len += sprintf (page+len, "\n"); - len += sprintf (page+len, "VM%02d Name: %-8.8s\n", - i, info->sysinfo_3_2_2.vm[i].name); - len += sprintf (page+len, "VM%02d Control Program: %-16.16s\n", - i, info->sysinfo_3_2_2.vm[i].cpi); - - len += sprintf (page+len, "VM%02d Adjustment: %d\n", - i, info->sysinfo_3_2_2.vm[i].caf); - - len += sprintf (page+len, "VM%02d CPUs Total: %d\n", - i, info->sysinfo_3_2_2.vm[i].cpus_total); - len += sprintf (page+len, "VM%02d CPUs Configured: %d\n", - i, info->sysinfo_3_2_2.vm[i].cpus_configured); - len += sprintf (page+len, "VM%02d CPUs Standby: %d\n", - i, info->sysinfo_3_2_2.vm[i].cpus_standby); - len += sprintf (page+len, "VM%02d CPUs Reserved: %d\n", - i, info->sysinfo_3_2_2.vm[i].cpus_reserved); - } - } + if (level >= 3) + len = stsi_3_2_2((struct sysinfo_3_2_2 *) info, page, len); - free_page (info_page); + free_page (info); return len; } static __init int create_proc_sysinfo(void) { - create_proc_read_entry ("sysinfo", 0444, NULL, - proc_read_sysinfo, NULL); + create_proc_read_entry("sysinfo", 0444, NULL, + proc_read_sysinfo, NULL); return 0; } -- cgit v1.2.3-70-g09d2 From 1375fc1fb0434a26f93c59b1b9f3fdb8bf90bba5 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 20 Sep 2006 15:59:12 +0200 Subject: [S390] __exit cleanup. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/hypfs/hypfs_diag.c | 2 +- arch/s390/kernel/vmlinux.lds.S | 2 +- drivers/s390/block/dasd_eer.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c index fee5aee605f..75144efbb92 100644 --- a/arch/s390/hypfs/hypfs_diag.c +++ b/arch/s390/hypfs/hypfs_diag.c @@ -535,7 +535,7 @@ __init int hypfs_diag_init(void) return rc; } -__exit void hypfs_diag_exit(void) +void hypfs_diag_exit(void) { diag224_delete_name_table(); diag204_free_buffer(); diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index df0c16ab8e9..af9e69a0301 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -118,7 +118,7 @@ SECTIONS /* Sections to be discarded */ /DISCARD/ : { - *(.exitcall.exit) + *(.exit.text) *(.exit.data) *(.exitcall.exit) } /* Stabs debugging sections. */ diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c index da65f1b032f..e0bf30ebb21 100644 --- a/drivers/s390/block/dasd_eer.c +++ b/drivers/s390/block/dasd_eer.c @@ -678,7 +678,7 @@ int __init dasd_eer_init(void) return 0; } -void __exit dasd_eer_exit(void) +void dasd_eer_exit(void) { WARN_ON(misc_deregister(&dasd_eer_dev) != 0); } -- cgit v1.2.3-70-g09d2 From e87bfe51b5ca2db99dd680bbb1e8fe3c94b607df Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 20 Sep 2006 15:59:15 +0200 Subject: [S390] convert some assembler to C. Convert GET_IPL_DEVICE assembler macro to C function. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/head.S | 59 ---------------------------------------------- arch/s390/kernel/head31.S | 43 +++++++++++++++++++++++---------- arch/s390/kernel/head64.S | 39 +++++++++++++++++++----------- arch/s390/kernel/ipl.c | 4 ++-- drivers/s390/cio/cio.c | 38 +++++++++++++++++++++++++++-- include/asm-s390/lowcore.h | 1 + include/asm-s390/setup.h | 8 ++++--- 7 files changed, 99 insertions(+), 93 deletions(-) (limited to 'drivers') diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S index a6e9bdb5359..0f1db268a8a 100644 --- a/arch/s390/kernel/head.S +++ b/arch/s390/kernel/head.S @@ -481,65 +481,6 @@ start: .byte 0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7 .byte 0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff -.macro GET_IPL_DEVICE -.Lget_ipl_device: - l %r1,0xb8 # get sid - sll %r1,15 # test if subchannel is enabled - srl %r1,31 - ltr %r1,%r1 - bz 2f-.LPG1(%r13) # subchannel disabled - l %r1,0xb8 - la %r5,.Lipl_schib-.LPG1(%r13) - stsch 0(%r5) # get schib of subchannel - bnz 2f-.LPG1(%r13) # schib not available - tm 5(%r5),0x01 # devno valid? - bno 2f-.LPG1(%r13) - la %r6,ipl_parameter_flags-.LPG1(%r13) - oi 3(%r6),0x01 # set flag - la %r2,ipl_devno-.LPG1(%r13) - mvc 0(2,%r2),6(%r5) # store devno - tm 4(%r5),0x80 # qdio capable device? - bno 2f-.LPG1(%r13) - oi 3(%r6),0x02 # set flag - - # copy ipl parameters - - lhi %r0,4096 - l %r2,20(%r0) # get address of parameter list - lhi %r3,IPL_PARMBLOCK_ORIGIN - st %r3,20(%r0) - lhi %r4,1 - cr %r2,%r3 # start parameters < destination ? - jl 0f - lhi %r1,1 # copy direction is upwards - j 1f -0: lhi %r1,-1 # copy direction is downwards - ar %r2,%r0 - ar %r3,%r0 - ar %r2,%r1 - ar %r3,%r1 -1: mvc 0(1,%r3),0(%r2) # finally copy ipl parameters - ar %r3,%r1 - ar %r2,%r1 - sr %r0,%r4 - jne 1b - b 2f-.LPG1(%r13) - - .align 4 -.Lipl_schib: - .rept 13 - .long 0 - .endr - - .globl ipl_parameter_flags -ipl_parameter_flags: - .long 0 - .globl ipl_devno -ipl_devno: - .word 0 -2: -.endm - #ifdef CONFIG_64BIT #include "head64.S" #else diff --git a/arch/s390/kernel/head31.S b/arch/s390/kernel/head31.S index d8bb68a7252..1fa9fa1ca74 100644 --- a/arch/s390/kernel/head31.S +++ b/arch/s390/kernel/head31.S @@ -37,13 +37,23 @@ startup:basr %r13,0 # get base startup_continue: basr %r13,0 # get base -.LPG1: GET_IPL_DEVICE - mvi __LC_AR_MODE_ID,0 # set ESA flag (mode 0) +.LPG1: mvi __LC_AR_MODE_ID,0 # set ESA flag (mode 0) lctl %c0,%c15,.Lctl-.LPG1(%r13) # load control registers l %r12,.Lparmaddr-.LPG1(%r13) # pointer to parameter area # move IPL device to lowcore mvc __LC_IPLDEV(4),IPL_DEVICE-PARMAREA(%r12) +# +# Setup stack +# + l %r15,.Linittu-.LPG1(%r13) + mvc __LC_CURRENT(4),__TI_task(%r15) + ahi %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union+THREAD_SIZE + st %r15,__LC_KERNEL_STACK # set end of kernel stack + ahi %r15,-96 + xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # clear backchain + l %r14,.Lipl_save_parameters-.LPG1(%r13) + basr %r14,%r14 # # clear bss memory # @@ -115,6 +125,10 @@ startup_continue: b .Lfchunk-.LPG1(%r13) .align 4 +.Lipl_save_parameters: + .long ipl_save_parameters +.Linittu: + .long init_thread_union .Lpmask: .byte 0 .align 8 @@ -274,6 +288,20 @@ startup_continue: .Lbss_end: .long _end .Lparmaddr: .long PARMAREA .Lsccbaddr: .long .Lsccb + + .globl ipl_schib +ipl_schib: + .rept 13 + .long 0 + .endr + + .globl ipl_flags +ipl_flags: + .long 0 + .globl ipl_devno +ipl_devno: + .word 0 + .org 0x12000 .globl s390_readinfo_sccb s390_readinfo_sccb: @@ -305,16 +333,6 @@ s390_readinfo_sccb: .globl _stext _stext: basr %r13,0 # get base .LPG3: -# -# Setup stack -# - l %r15,.Linittu-.LPG3(%r13) - mvc __LC_CURRENT(4),__TI_task(%r15) - ahi %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union+THREAD_SIZE - st %r15,__LC_KERNEL_STACK # set end of kernel stack - ahi %r15,-96 - xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # clear backchain - # check control registers stctl %c0,%c15,0(%r15) oi 2(%r15),0x40 # enable sigp emergency signal @@ -333,6 +351,5 @@ _stext: basr %r13,0 # get base # .align 8 .Ldw: .long 0x000a0000,0x00000000 -.Linittu:.long init_thread_union .Lstart:.long start_kernel .Laregs:.long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S index c2005101fee..1ebaa338aa7 100644 --- a/arch/s390/kernel/head64.S +++ b/arch/s390/kernel/head64.S @@ -39,7 +39,6 @@ startup_continue: basr %r13,0 # get base .LPG1: sll %r13,1 # remove high order bit srl %r13,1 - GET_IPL_DEVICE lhi %r1,1 # mode 1 = esame mvi __LC_AR_MODE_ID,1 # set esame flag slr %r0,%r0 # set cpuid to zero @@ -49,7 +48,18 @@ startup_continue: lg %r12,.Lparmaddr-.LPG1(%r13)# pointer to parameter area # move IPL device to lowcore mvc __LC_IPLDEV(4),IPL_DEVICE+4-PARMAREA(%r12) +# +# Setup stack +# + larl %r15,init_thread_union + lg %r14,__TI_task(%r15) # cache current in lowcore + stg %r14,__LC_CURRENT + aghi %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union + THREAD_SIZE + stg %r15,__LC_KERNEL_STACK # set end of kernel stack + aghi %r15,-160 + xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # clear backchain + brasl %r14,ipl_save_parameters # # clear bss memory # @@ -269,6 +279,19 @@ startup_continue: .Lparmaddr: .quad PARMAREA + .globl ipl_schib +ipl_schib: + .rept 13 + .long 0 + .endr + + .globl ipl_flags +ipl_flags: + .long 0 + .globl ipl_devno +ipl_devno: + .word 0 + .org 0x12000 .globl s390_readinfo_sccb s390_readinfo_sccb: @@ -300,24 +323,12 @@ s390_readinfo_sccb: .globl _stext _stext: basr %r13,0 # get base .LPG3: -# -# Setup stack -# - larl %r15,init_thread_union - lg %r14,__TI_task(%r15) # cache current in lowcore - stg %r14,__LC_CURRENT - aghi %r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union + THREAD_SIZE - stg %r15,__LC_KERNEL_STACK # set end of kernel stack - aghi %r15,-160 - xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # clear backchain - # check control registers stctg %c0,%c15,0(%r15) oi 6(%r15),0x40 # enable sigp emergency signal oi 4(%r15),0x10 # switch on low address proctection lctlg %c0,%c15,0(%r15) -# lam 0,15,.Laregs-.LPG3(%r13) # load access regs needed by uaccess brasl %r14,start_kernel # go to C code # @@ -325,7 +336,7 @@ _stext: basr %r13,0 # get base # basr %r13,0 lpswe .Ldw-.(%r13) # load disabled wait psw -# + .align 8 .Ldw: .quad 0x0002000180000000,0x0000000000000000 .Laregs: .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index 105ee15a2b3..6555cc48e28 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -189,9 +189,9 @@ static enum ipl_type ipl_get_type(void) { struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START; - if (!IPL_DEVNO_VALID) + if (!(ipl_flags & IPL_DEVNO_VALID)) return IPL_TYPE_UNKNOWN; - if (!IPL_PARMBLOCK_VALID) + if (!(ipl_flags & IPL_PARMBLOCK_VALID)) return IPL_TYPE_CCW; if (ipl->hdr.version > IPL_MAX_SUPPORTED_VERSION) return IPL_TYPE_UNKNOWN; diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 050963f1580..61eb7caa156 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -16,11 +16,10 @@ #include #include #include - #include #include #include - +#include #include "airq.h" #include "cio.h" #include "css.h" @@ -909,3 +908,38 @@ void reipl_ccw_dev(struct ccw_dev_id *devid) cio_reset_channel_paths(); do_reipl_asm(*((__u32*)&schid)); } + +extern struct schib ipl_schib; + +/* + * ipl_save_parameters gets called very early. It is not allowed to access + * anything in the bss section at all. The bss section is not cleared yet, + * but may contain some ipl parameters written by the firmware. + * These parameters (if present) are copied to 0x2000. + * To avoid corruption of the ipl parameters, all variables used by this + * function must reside on the stack or in the data section. + */ +void ipl_save_parameters(void) +{ + struct subchannel_id schid; + unsigned int *ipl_ptr; + void *src, *dst; + + schid = *(struct subchannel_id *)__LC_SUBCHANNEL_ID; + if (!schid.one) + return; + if (stsch(schid, &ipl_schib)) + return; + if (!ipl_schib.pmcw.dnv) + return; + ipl_devno = ipl_schib.pmcw.dev; + ipl_flags |= IPL_DEVNO_VALID; + if (!ipl_schib.pmcw.qf) + return; + ipl_flags |= IPL_PARMBLOCK_VALID; + ipl_ptr = (unsigned int *)__LC_IPL_PARMBLOCK_PTR; + src = (void *)(unsigned long)*ipl_ptr; + dst = (void *)IPL_PARMBLOCK_ORIGIN; + memmove(dst, src, PAGE_SIZE); + *ipl_ptr = IPL_PARMBLOCK_ORIGIN; +} diff --git a/include/asm-s390/lowcore.h b/include/asm-s390/lowcore.h index 2e3d4cca5e2..18695d10ded 100644 --- a/include/asm-s390/lowcore.h +++ b/include/asm-s390/lowcore.h @@ -35,6 +35,7 @@ #define __LC_IO_NEW_PSW 0x01f0 #endif /* !__s390x__ */ +#define __LC_IPL_PARMBLOCK_PTR 0x014 #define __LC_EXT_PARAMS 0x080 #define __LC_CPU_ADDRESS 0x084 #define __LC_EXT_INT_CODE 0x086 diff --git a/include/asm-s390/setup.h b/include/asm-s390/setup.h index 4a1126d8439..00c03e46689 100644 --- a/include/asm-s390/setup.h +++ b/include/asm-s390/setup.h @@ -125,13 +125,15 @@ struct ipl_parameter_block { /* * IPL validity flags and parameters as detected in head.S */ -extern u32 ipl_parameter_flags; +extern u32 ipl_flags; extern u16 ipl_devno; void do_reipl(void); -#define IPL_DEVNO_VALID (ipl_parameter_flags & 1) -#define IPL_PARMBLOCK_VALID (ipl_parameter_flags & 2) +enum { + IPL_DEVNO_VALID = 1, + IPL_PARMBLOCK_VALID = 2, +}; #define IPL_PARMBLOCK_START ((struct ipl_parameter_block *) \ IPL_PARMBLOCK_ORIGIN) -- cgit v1.2.3-70-g09d2 From 81388d2a45b89c890b981cfc83b01ec15ae3483b Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Wed, 20 Sep 2006 15:59:17 +0200 Subject: [S390] Missing initialization in common i/o layer. Previous patch that was intended to reduce stack usage within common i/o layer didn't consider implicit memset(..., 0, ...) used with the initializations used before. Add these missing memsets wherever it's not obvious that the concerned memory region is zeroed. This should give the same semantics as before. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/device_fsm.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 35e162ba6d5..7756f324fb6 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -267,6 +267,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) notify = 1; } /* fill out sense information */ + memset(&cdev->id, 0, sizeof(cdev->id)); cdev->id.cu_type = cdev->private->senseid.cu_type; cdev->id.cu_model = cdev->private->senseid.cu_model; cdev->id.dev_type = cdev->private->senseid.dev_type; -- cgit v1.2.3-70-g09d2 From 6981e936aa156c747bb3e6aea414bba673457115 Mon Sep 17 00:00:00 2001 From: Frank Pavlic Date: Wed, 20 Sep 2006 15:59:19 +0200 Subject: [S390] qdio slsb processing state. The last SLSB has to be set to STATE_PROCESSING if we really want to use the PROCESSING feature. Signed-off-by: Frank Pavlic Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/qdio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c index 16e3715d5c0..cde822d8b5c 100644 --- a/drivers/s390/cio/qdio.c +++ b/drivers/s390/cio/qdio.c @@ -1129,7 +1129,7 @@ out: #ifdef QDIO_USE_PROCESSING_STATE if (last_position>=0) - set_slsb(q, &last_position, SLSB_P_INPUT_NOT_INIT, &count); + set_slsb(q, &last_position, SLSB_P_INPUT_PROCESSING, &count); #endif /* QDIO_USE_PROCESSING_STATE */ QDIO_DBF_HEX4(0,trace,&q->first_to_check,sizeof(int)); -- cgit v1.2.3-70-g09d2 From 45af3af8761a3f790fe414c017de039a08ccd780 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Wed, 20 Sep 2006 15:59:24 +0200 Subject: [S390] fix typo in vmcp. Fix comment typo in vmcp, it is z/VM and not v/VM. Signed-off-by: Christian Borntraeger Signed-off-by: Martin Schwidefsky --- drivers/s390/char/vmcp.c | 2 +- drivers/s390/char/vmcp.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c index 19762f3476a..1678b6c757e 100644 --- a/drivers/s390/char/vmcp.c +++ b/drivers/s390/char/vmcp.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2004,2005 IBM Corporation - * Interface implementation for communication with the v/VM control program + * Interface implementation for communication with the z/VM control program * Author(s): Christian Borntraeger * * diff --git a/drivers/s390/char/vmcp.h b/drivers/s390/char/vmcp.h index 87389e73046..8a5975f3dad 100644 --- a/drivers/s390/char/vmcp.h +++ b/drivers/s390/char/vmcp.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2004, 2005 IBM Corporation - * Interface implementation for communication with the v/VM control program + * Interface implementation for communication with the z/VM control program * Version 1.0 * Author(s): Christian Borntraeger * -- cgit v1.2.3-70-g09d2 From e620c4940002348417e8d317d65bc7b152646493 Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Wed, 20 Sep 2006 15:59:32 +0200 Subject: [S390] xpram off by one error. The xpram driver shows and uses 4096 bytes less than available. Signed-off-by: Christian Borntraeger Signed-off-by: Martin Schwidefsky --- drivers/s390/block/xpram.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c index ca7d51f7ecc..cab2c736683 100644 --- a/drivers/s390/block/xpram.c +++ b/drivers/s390/block/xpram.c @@ -453,7 +453,7 @@ static int __init xpram_init(void) PRINT_WARN("No expanded memory available\n"); return -ENODEV; } - xpram_pages = xpram_highest_page_index(); + xpram_pages = xpram_highest_page_index() + 1; PRINT_INFO(" %u pages expanded memory found (%lu KB).\n", xpram_pages, (unsigned long) xpram_pages*4); rc = xpram_setup_sizes(xpram_pages); -- cgit v1.2.3-70-g09d2 From 31b58088292c7f00f0b81088bfb557285b0b6247 Mon Sep 17 00:00:00 2001 From: Melissa Howland Date: Wed, 20 Sep 2006 15:59:34 +0200 Subject: [S390] Linux API for writing z/VM APPLDATA Monitor records. This patch delivers a new Linux API in the form of a misc char device that is useable from user space and allows write access to the z/VM APPLDATA Monitor Records collected by the *MONITOR System Service of z/VM. Signed-off-by: Melissa Howland Signed-off-by: Martin Schwidefsky --- arch/s390/defconfig | 1 + drivers/s390/Kconfig | 6 + drivers/s390/char/Makefile | 1 + drivers/s390/char/monwriter.c | 292 ++++++++++++++++++++++++++++++++++++++++++ include/asm-s390/Kbuild | 2 +- include/asm-s390/monwriter.h | 33 +++++ 6 files changed, 334 insertions(+), 1 deletion(-) create mode 100644 drivers/s390/char/monwriter.c create mode 100644 include/asm-s390/monwriter.h (limited to 'drivers') diff --git a/arch/s390/defconfig b/arch/s390/defconfig index f1d4591eddb..35da53986b1 100644 --- a/arch/s390/defconfig +++ b/arch/s390/defconfig @@ -428,6 +428,7 @@ CONFIG_S390_TAPE_34XX=m # CONFIG_VMLOGRDR is not set # CONFIG_VMCP is not set # CONFIG_MONREADER is not set +CONFIG_MONWRITER=m # # Cryptographic devices diff --git a/drivers/s390/Kconfig b/drivers/s390/Kconfig index bc4261e8b60..ae89b9b8874 100644 --- a/drivers/s390/Kconfig +++ b/drivers/s390/Kconfig @@ -213,6 +213,12 @@ config MONREADER help Character device driver for reading z/VM monitor service records +config MONWRITER + tristate "API for writing z/VM monitor service records" + default "m" + help + Character device driver for writing z/VM monitor service records + endmenu menu "Cryptographic devices" diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile index 0c0162ff6c0..c3e97b4fc18 100644 --- a/drivers/s390/char/Makefile +++ b/drivers/s390/char/Makefile @@ -28,3 +28,4 @@ obj-$(CONFIG_S390_TAPE) += tape.o tape_class.o obj-$(CONFIG_S390_TAPE_34XX) += tape_34xx.o obj-$(CONFIG_S390_TAPE_3590) += tape_3590.o obj-$(CONFIG_MONREADER) += monreader.o +obj-$(CONFIG_MONWRITER) += monwriter.o diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c new file mode 100644 index 00000000000..1e3939aeb8a --- /dev/null +++ b/drivers/s390/char/monwriter.c @@ -0,0 +1,292 @@ +/* + * drivers/s390/char/monwriter.c + * + * Character device driver for writing z/VM *MONITOR service records. + * + * Copyright (C) IBM Corp. 2006 + * + * Author(s): Melissa Howland + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MONWRITE_MAX_DATALEN 4024 + +static int mon_max_bufs = 255; + +struct mon_buf { + struct list_head list; + struct monwrite_hdr hdr; + int diag_done; + char *data; +}; + +struct mon_private { + struct list_head list; + struct monwrite_hdr hdr; + size_t hdr_to_read; + size_t data_to_read; + struct mon_buf *current_buf; + int mon_buf_count; +}; + +/* + * helper functions + */ + +static int monwrite_diag(struct monwrite_hdr *myhdr, char *buffer, int fcn) +{ + struct appldata_product_id id; + int rc; + + strcpy(id.prod_nr, "LNXAPPL"); + id.prod_fn = myhdr->applid; + id.record_nr = myhdr->record_num; + id.version_nr = myhdr->version; + id.release_nr = myhdr->release; + id.mod_lvl = myhdr->mod_level; + rc = appldata_asm(&id, fcn, (void *) buffer, myhdr->datalen); + if (rc <= 0) + return rc; + if (rc == 5) + return -EPERM; + printk("DIAG X'DC' error with return code: %i\n", rc); + return -EINVAL; +} + +static inline struct mon_buf *monwrite_find_hdr(struct mon_private *monpriv, + struct monwrite_hdr *monhdr) +{ + struct mon_buf *entry, *next; + + list_for_each_entry_safe(entry, next, &monpriv->list, list) + if (entry->hdr.applid == monhdr->applid && + entry->hdr.record_num == monhdr->record_num && + entry->hdr.version == monhdr->version && + entry->hdr.release == monhdr->release && + entry->hdr.mod_level == monhdr->mod_level) + return entry; + return NULL; +} + +static int monwrite_new_hdr(struct mon_private *monpriv) +{ + struct monwrite_hdr *monhdr = &monpriv->hdr; + struct mon_buf *monbuf; + int rc; + + if (monhdr->datalen > MONWRITE_MAX_DATALEN || + monhdr->mon_function > MONWRITE_START_CONFIG || + monhdr->hdrlen != sizeof(struct monwrite_hdr)) + return -EINVAL; + monbuf = monwrite_find_hdr(monpriv, monhdr); + if (monbuf) { + if (monhdr->mon_function == MONWRITE_STOP_INTERVAL) { + monhdr->datalen = monbuf->hdr.datalen; + rc = monwrite_diag(monhdr, monbuf->data, + APPLDATA_STOP_REC); + list_del(&monbuf->list); + monpriv->mon_buf_count--; + kfree(monbuf->data); + kfree(monbuf); + monbuf = NULL; + } + } else { + if (monpriv->mon_buf_count >= mon_max_bufs) + return -ENOSPC; + monbuf = kzalloc(sizeof(struct mon_buf), GFP_KERNEL); + if (!monbuf) + return -ENOMEM; + monbuf->data = kzalloc(monbuf->hdr.datalen, + GFP_KERNEL | GFP_DMA); + if (!monbuf->data) { + kfree(monbuf); + return -ENOMEM; + } + monbuf->hdr = *monhdr; + list_add_tail(&monbuf->list, &monpriv->list); + monpriv->mon_buf_count++; + } + monpriv->current_buf = monbuf; + return 0; +} + +static int monwrite_new_data(struct mon_private *monpriv) +{ + struct monwrite_hdr *monhdr = &monpriv->hdr; + struct mon_buf *monbuf = monpriv->current_buf; + int rc = 0; + + switch (monhdr->mon_function) { + case MONWRITE_START_INTERVAL: + if (!monbuf->diag_done) { + rc = monwrite_diag(monhdr, monbuf->data, + APPLDATA_START_INTERVAL_REC); + monbuf->diag_done = 1; + } + break; + case MONWRITE_START_CONFIG: + if (!monbuf->diag_done) { + rc = monwrite_diag(monhdr, monbuf->data, + APPLDATA_START_CONFIG_REC); + monbuf->diag_done = 1; + } + break; + case MONWRITE_GEN_EVENT: + rc = monwrite_diag(monhdr, monbuf->data, + APPLDATA_GEN_EVENT_REC); + list_del(&monpriv->current_buf->list); + kfree(monpriv->current_buf->data); + kfree(monpriv->current_buf); + monpriv->current_buf = NULL; + break; + default: + /* monhdr->mon_function is checked in monwrite_new_hdr */ + BUG(); + } + return rc; +} + +/* + * file operations + */ + +static int monwrite_open(struct inode *inode, struct file *filp) +{ + struct mon_private *monpriv; + + monpriv = kzalloc(sizeof(struct mon_private), GFP_KERNEL); + if (!monpriv) + return -ENOMEM; + INIT_LIST_HEAD(&monpriv->list); + monpriv->hdr_to_read = sizeof(monpriv->hdr); + filp->private_data = monpriv; + return nonseekable_open(inode, filp); +} + +static int monwrite_close(struct inode *inode, struct file *filp) +{ + struct mon_private *monpriv = filp->private_data; + struct mon_buf *entry, *next; + + list_for_each_entry_safe(entry, next, &monpriv->list, list) { + if (entry->hdr.mon_function != MONWRITE_GEN_EVENT) + monwrite_diag(&entry->hdr, entry->data, + APPLDATA_STOP_REC); + monpriv->mon_buf_count--; + list_del(&entry->list); + kfree(entry->data); + kfree(entry); + } + kfree(monpriv); + return 0; +} + +static ssize_t monwrite_write(struct file *filp, const char __user *data, + size_t count, loff_t *ppos) +{ + struct mon_private *monpriv = filp->private_data; + size_t len, written; + void *to; + int rc; + + for (written = 0; written < count; ) { + if (monpriv->hdr_to_read) { + len = min(count - written, monpriv->hdr_to_read); + to = (char *) &monpriv->hdr + + sizeof(monpriv->hdr) - monpriv->hdr_to_read; + if (copy_from_user(to, data + written, len)) { + rc = -EFAULT; + goto out_error; + } + monpriv->hdr_to_read -= len; + written += len; + if (monpriv->hdr_to_read > 0) + continue; + rc = monwrite_new_hdr(monpriv); + if (rc) + goto out_error; + monpriv->data_to_read = monpriv->current_buf ? + monpriv->current_buf->hdr.datalen : 0; + } + + if (monpriv->data_to_read) { + len = min(count - written, monpriv->data_to_read); + to = monpriv->current_buf->data + + monpriv->hdr.datalen - monpriv->data_to_read; + if (copy_from_user(to, data + written, len)) { + rc = -EFAULT; + goto out_error; + } + monpriv->data_to_read -= len; + written += len; + if (monpriv->data_to_read > 0) + continue; + rc = monwrite_new_data(monpriv); + if (rc) + goto out_error; + } + monpriv->hdr_to_read = sizeof(monpriv->hdr); + } + return written; + +out_error: + monpriv->data_to_read = 0; + monpriv->hdr_to_read = sizeof(struct monwrite_hdr); + return rc; +} + +static struct file_operations monwrite_fops = { + .owner = THIS_MODULE, + .open = &monwrite_open, + .release = &monwrite_close, + .write = &monwrite_write, +}; + +static struct miscdevice mon_dev = { + .name = "monwriter", + .fops = &monwrite_fops, + .minor = MISC_DYNAMIC_MINOR, +}; + +/* + * module init/exit + */ + +static int __init mon_init(void) +{ + if (MACHINE_IS_VM) + return misc_register(&mon_dev); + else + return -ENODEV; +} + +static void __exit mon_exit(void) +{ + WARN_ON(misc_deregister(&mon_dev) != 0); +} + +module_init(mon_init); +module_exit(mon_exit); + +module_param_named(max_bufs, mon_max_bufs, int, 0644); +MODULE_PARM_DESC(max_bufs, "Maximum number of sample monitor data buffers" + "that can be active at one time"); + +MODULE_AUTHOR("Melissa Howland "); +MODULE_DESCRIPTION("Character device driver for writing z/VM " + "APPLDATA monitor records."); +MODULE_LICENSE("GPL"); diff --git a/include/asm-s390/Kbuild b/include/asm-s390/Kbuild index ed8955f49e4..979145026a2 100644 --- a/include/asm-s390/Kbuild +++ b/include/asm-s390/Kbuild @@ -1,4 +1,4 @@ include include/asm-generic/Kbuild.asm unifdef-y += cmb.h debug.h -header-y += dasd.h qeth.h tape390.h ucontext.h vtoc.h z90crypt.h +header-y += dasd.h monwriter.h qeth.h tape390.h ucontext.h vtoc.h z90crypt.h diff --git a/include/asm-s390/monwriter.h b/include/asm-s390/monwriter.h new file mode 100644 index 00000000000..f0cbf96c52e --- /dev/null +++ b/include/asm-s390/monwriter.h @@ -0,0 +1,33 @@ +/* + * include/asm-s390/monwriter.h + * + * Copyright (C) IBM Corp. 2006 + * Character device driver for writing z/VM APPLDATA monitor records + * Version 1.0 + * Author(s): Melissa Howland + * + */ + +#ifndef _ASM_390_MONWRITER_H +#define _ASM_390_MONWRITER_H + +/* mon_function values */ +#define MONWRITE_START_INTERVAL 0x00 /* start interval recording */ +#define MONWRITE_STOP_INTERVAL 0x01 /* stop interval or config recording */ +#define MONWRITE_GEN_EVENT 0x02 /* generate event record */ +#define MONWRITE_START_CONFIG 0x03 /* start configuration recording */ + +/* the header the app uses in its write() data */ +struct monwrite_hdr { + unsigned char mon_function; + unsigned short applid; + unsigned char record_num; + unsigned short version; + unsigned short release; + unsigned short mod_level; + unsigned short datalen; + unsigned char hdrlen; + +} __attribute__((packed)); + +#endif /* _ASM_390_MONWRITER_H */ -- cgit v1.2.3-70-g09d2 From 250b2dc83347feb73eb6bdf7511685e72b587e68 Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Wed, 20 Sep 2006 15:59:47 +0200 Subject: [S390] Get rid of DBG macro. Signed-off-by: Cornelia Huck Signed-off-by: Martin Schwidefsky --- drivers/s390/s390mach.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/s390mach.c b/drivers/s390/s390mach.c index 5399c5d99b8..a914129a4da 100644 --- a/drivers/s390/s390mach.c +++ b/drivers/s390/s390mach.c @@ -19,9 +19,6 @@ #include "s390mach.h" -#define DBG printk -// #define DBG(args,...) do {} while (0); - static struct semaphore m_sem; extern int css_process_crw(int, int); @@ -83,11 +80,11 @@ repeat: ccode = stcrw(&crw[chain]); if (ccode != 0) break; - DBG(KERN_DEBUG "crw_info : CRW reports slct=%d, oflw=%d, " - "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n", - crw[chain].slct, crw[chain].oflw, crw[chain].chn, - crw[chain].rsc, crw[chain].anc, crw[chain].erc, - crw[chain].rsid); + printk(KERN_DEBUG "crw_info : CRW reports slct=%d, oflw=%d, " + "chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n", + crw[chain].slct, crw[chain].oflw, crw[chain].chn, + crw[chain].rsc, crw[chain].anc, crw[chain].erc, + crw[chain].rsid); /* Check for overflows. */ if (crw[chain].oflw) { pr_debug("%s: crw overflow detected!\n", __FUNCTION__); @@ -117,8 +114,8 @@ repeat: * reported to the common I/O layer. */ if (crw[chain].slct) { - DBG(KERN_INFO"solicited machine check for " - "channel path %02X\n", crw[0].rsid); + pr_debug("solicited machine check for " + "channel path %02X\n", crw[0].rsid); break; } switch (crw[0].erc) { -- cgit v1.2.3-70-g09d2 From db0c2d59087296b3567ec408abe17108db88b385 Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Wed, 20 Sep 2006 15:59:49 +0200 Subject: [S390] set modalias for ccw bus uevents. Add the MODALIAS environment variable for ccw bus uevents. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/device.c | 109 ++++++++++++++++++++++++++++------------------ 1 file changed, 66 insertions(+), 43 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 646da564040..688945662c1 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -52,53 +52,81 @@ ccw_bus_match (struct device * dev, struct device_driver * drv) return 1; } -/* - * Hotplugging interface for ccw devices. - * Heavily modeled on pci and usb hotplug. - */ -static int -ccw_uevent (struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +/* Store modalias string delimited by prefix/suffix string into buffer with + * specified size. Return length of resulting string (excluding trailing '\0') + * even if string doesn't fit buffer (snprintf semantics). */ +static int snprint_alias(char *buf, size_t size, const char *prefix, + struct ccw_device_id *id, const char *suffix) { - struct ccw_device *cdev = to_ccwdev(dev); - int i = 0; - int length = 0; + int len; - if (!cdev) - return -ENODEV; + len = snprintf(buf, size, "%sccw:t%04Xm%02X", prefix, id->cu_type, + id->cu_model); + if (len > size) + return len; + buf += len; + size -= len; - /* what we want to pass to /sbin/hotplug */ + if (id->dev_type != 0) + len += snprintf(buf, size, "dt%04Xdm%02X%s", id->dev_type, + id->dev_model, suffix); + else + len += snprintf(buf, size, "dtdm%s", suffix); - envp[i++] = buffer; - length += scnprintf(buffer, buffer_size - length, "CU_TYPE=%04X", - cdev->id.cu_type); - if ((buffer_size - length <= 0) || (i >= num_envp)) - return -ENOMEM; - ++length; - buffer += length; + return len; +} +/* Set up environment variables for ccw device uevent. Return 0 on success, + * non-zero otherwise. */ +static int ccw_uevent(struct device *dev, char **envp, int num_envp, + char *buffer, int buffer_size) +{ + struct ccw_device *cdev = to_ccwdev(dev); + struct ccw_device_id *id = &(cdev->id); + int i = 0; + int len; + + /* CU_TYPE= */ + len = snprintf(buffer, buffer_size, "CU_TYPE=%04X", id->cu_type) + 1; + if (len > buffer_size || i >= num_envp) + return -ENOMEM; envp[i++] = buffer; - length += scnprintf(buffer, buffer_size - length, "CU_MODEL=%02X", - cdev->id.cu_model); - if ((buffer_size - length <= 0) || (i >= num_envp)) + buffer += len; + buffer_size -= len; + + /* CU_MODEL= */ + len = snprintf(buffer, buffer_size, "CU_MODEL=%02X", id->cu_model) + 1; + if (len > buffer_size || i >= num_envp) return -ENOMEM; - ++length; - buffer += length; + envp[i++] = buffer; + buffer += len; + buffer_size -= len; /* The next two can be zero, that's ok for us */ - envp[i++] = buffer; - length += scnprintf(buffer, buffer_size - length, "DEV_TYPE=%04X", - cdev->id.dev_type); - if ((buffer_size - length <= 0) || (i >= num_envp)) + /* DEV_TYPE= */ + len = snprintf(buffer, buffer_size, "DEV_TYPE=%04X", id->dev_type) + 1; + if (len > buffer_size || i >= num_envp) return -ENOMEM; - ++length; - buffer += length; + envp[i++] = buffer; + buffer += len; + buffer_size -= len; + /* DEV_MODEL= */ + len = snprintf(buffer, buffer_size, "DEV_MODEL=%02X", + (unsigned char) id->dev_model) + 1; + if (len > buffer_size || i >= num_envp) + return -ENOMEM; envp[i++] = buffer; - length += scnprintf(buffer, buffer_size - length, "DEV_MODEL=%02X", - cdev->id.dev_model); - if ((buffer_size - length <= 0) || (i >= num_envp)) + buffer += len; + buffer_size -= len; + + /* MODALIAS= */ + len = snprint_alias(buffer, buffer_size, "MODALIAS=", id, "") + 1; + if (len > buffer_size || i >= num_envp) return -ENOMEM; + envp[i++] = buffer; + buffer += len; + buffer_size -= len; envp[i] = NULL; @@ -251,16 +279,11 @@ modalias_show (struct device *dev, struct device_attribute *attr, char *buf) { struct ccw_device *cdev = to_ccwdev(dev); struct ccw_device_id *id = &(cdev->id); - int ret; + int len; - ret = sprintf(buf, "ccw:t%04Xm%02X", - id->cu_type, id->cu_model); - if (id->dev_type != 0) - ret += sprintf(buf + ret, "dt%04Xdm%02X\n", - id->dev_type, id->dev_model); - else - ret += sprintf(buf + ret, "dtdm\n"); - return ret; + len = snprint_alias(buf, PAGE_SIZE, "", id, "\n") + 1; + + return len > PAGE_SIZE ? PAGE_SIZE : len; } static ssize_t -- cgit v1.2.3-70-g09d2 From dcd707b4bdc10b4fa20efa116dbaeded21513115 Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Wed, 20 Sep 2006 15:59:52 +0200 Subject: [S390] Replace nopav-message on VM. Specifying kernel parameter "dasd=nopav" on systems running under VM has no function but results in message "disable PAV mode". Correct message is "'nopav' not supported on VM". Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd_devmap.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 80cf0999465..91cf971f065 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -258,8 +258,12 @@ dasd_parse_keyword( char *parsestring ) { return residual_str; } if (strncmp("nopav", parsestring, length) == 0) { - dasd_nopav = 1; - MESSAGE(KERN_INFO, "%s", "disable PAV mode"); + if (MACHINE_IS_VM) + MESSAGE(KERN_INFO, "%s", "'nopav' not supported on VM"); + else { + dasd_nopav = 1; + MESSAGE(KERN_INFO, "%s", "disable PAV mode"); + } return residual_str; } if (strncmp("fixedbuffers", parsestring, length) == 0) { -- cgit v1.2.3-70-g09d2 From dd9963f9dd0985e16e878fd3632ecadfc54d3fbb Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Wed, 20 Sep 2006 15:59:54 +0200 Subject: [S390] cio: subchannels in no-path state. Subchannel may incorrectly remain in state no-path after channel paths have reappeared. Currently the scan for subchannels which are using a channel path ends at the first occurrence if a full link address was provided by the channel subsystem. The scan needs to continue over all subchannels. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/chsc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index c28444af091..9f9134b67e4 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -378,6 +378,7 @@ __s390_process_res_acc(struct subchannel_id schid, void *data) if (chp_mask == 0) { spin_unlock_irq(&sch->lock); + put_device(&sch->dev); return 0; } old_lpm = sch->lpm; @@ -392,7 +393,7 @@ __s390_process_res_acc(struct subchannel_id schid, void *data) spin_unlock_irq(&sch->lock); put_device(&sch->dev); - return (res_data->fla_mask == 0xffff) ? -ENODEV : 0; + return 0; } -- cgit v1.2.3-70-g09d2 From e0e32c8eba86fd5ea79eefad6f2c0b4988dfd02a Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Wed, 20 Sep 2006 15:59:57 +0200 Subject: [S390] cio: update path groups on logical CHPID changes. CHPIDs that are logically varied off will not be removed from a CCW device's path group because resign-from-pathgroup command is issued with invalid path mask of 0 because internal CCW operations are masked by the logical path mask after the relevant bits are cleared by the vary operation. Do not apply logical path mask to internal operations. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/cio.c | 2 +- drivers/s390/cio/device_ops.c | 15 ++++++++++++++- 2 files changed, 15 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 61eb7caa156..54cce542a1e 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -191,7 +191,7 @@ cio_start_key (struct subchannel *sch, /* subchannel structure */ sch->orb.pfch = sch->options.prefetch == 0; sch->orb.spnd = sch->options.suspend; sch->orb.ssic = sch->options.suspend && sch->options.inter; - sch->orb.lpm = (lpm != 0) ? (lpm & sch->opm) : sch->lpm; + sch->orb.lpm = (lpm != 0) ? lpm : sch->lpm; #ifdef CONFIG_64BIT /* * for 64 bit we always support 64 bit IDAWs with 4k page size only diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c index 9e3de0bd59b..acad8f852ed 100644 --- a/drivers/s390/cio/device_ops.c +++ b/drivers/s390/cio/device_ops.c @@ -96,6 +96,12 @@ ccw_device_start_key(struct ccw_device *cdev, struct ccw1 *cpa, ret = cio_set_options (sch, flags); if (ret) return ret; + /* Adjust requested path mask to excluded varied off paths. */ + if (lpm) { + lpm &= sch->opm; + if (lpm == 0) + return -EACCES; + } ret = cio_start_key (sch, cpa, lpm, key); if (ret == 0) cdev->private->intparm = intparm; @@ -304,7 +310,7 @@ __ccw_device_retry_loop(struct ccw_device *cdev, struct ccw1 *ccw, long magic, _ sch = to_subchannel(cdev->dev.parent); do { ret = cio_start (sch, ccw, lpm); - if ((ret == -EBUSY) || (ret == -EACCES)) { + if (ret == -EBUSY) { /* Try again later. */ spin_unlock_irq(&sch->lock); msleep(10); @@ -433,6 +439,13 @@ read_conf_data_lpm (struct ccw_device *cdev, void **buffer, int *length, __u8 lp if (!ciw || ciw->cmd == 0) return -EOPNOTSUPP; + /* Adjust requested path mask to excluded varied off paths. */ + if (lpm) { + lpm &= sch->opm; + if (lpm == 0) + return -EACCES; + } + rcd_ccw = kzalloc(sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); if (!rcd_ccw) return -ENOMEM; -- cgit v1.2.3-70-g09d2 From 28bdc6f6233f380ddc0b430cabd88ffeafea34c7 Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Wed, 20 Sep 2006 15:59:59 +0200 Subject: [S390] cio: always query all paths on path verification. Reappearing channel paths are sometimes not utilized by CCW devices because path verification incorrectly relies on path-operational-mask information which is not updated until a channel path has been used again. Modify path verification procedure to always query all available paths to a device. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/chsc.c | 2 +- drivers/s390/cio/cio.c | 5 +-- drivers/s390/cio/device_fsm.c | 39 +++++++++++--------- drivers/s390/cio/device_ops.c | 2 +- drivers/s390/cio/device_pgid.c | 81 ++++++++++++++++++++++-------------------- 5 files changed, 68 insertions(+), 61 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 9f9134b67e4..3bb4e472d73 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -256,7 +256,7 @@ s390_subchannel_remove_chpid(struct device *dev, void *data) /* trigger path verification. */ if (sch->driver && sch->driver->verify) sch->driver->verify(&sch->dev); - else if (sch->vpm == mask) + else if (sch->lpm == mask) goto out_unreg; out_unlock: spin_unlock_irq(&sch->lock); diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 54cce542a1e..2e2882daefb 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -569,10 +569,7 @@ cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid) sch->opm = 0xff; if (!cio_is_console(sch->schid)) chsc_validate_chpids(sch); - sch->lpm = sch->schib.pmcw.pim & - sch->schib.pmcw.pam & - sch->schib.pmcw.pom & - sch->opm; + sch->lpm = sch->schib.pmcw.pam & sch->opm; CIO_DEBUG(KERN_INFO, 0, "Detected device %04x on subchannel 0.%x.%04X" diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 7756f324fb6..dace46fc32e 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -232,10 +232,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state) */ old_lpm = sch->lpm; stsch(sch->schid, &sch->schib); - sch->lpm = sch->schib.pmcw.pim & - sch->schib.pmcw.pam & - sch->schib.pmcw.pom & - sch->opm; + sch->lpm = sch->schib.pmcw.pam & sch->opm; /* Check since device may again have become not operational. */ if (!sch->schib.pmcw.dnv) state = DEV_STATE_NOT_OPER; @@ -455,8 +452,8 @@ ccw_device_sense_pgid_done(struct ccw_device *cdev, int err) return; } /* Start Path Group verification. */ - sch->vpm = 0; /* Start with no path groups set. */ cdev->private->state = DEV_STATE_VERIFY; + cdev->private->flags.doverify = 0; ccw_device_verify_start(cdev); } @@ -556,7 +553,19 @@ ccw_device_nopath_notify(void *data) void ccw_device_verify_done(struct ccw_device *cdev, int err) { - cdev->private->flags.doverify = 0; + struct subchannel *sch; + + sch = to_subchannel(cdev->dev.parent); + /* Update schib - pom may have changed. */ + stsch(sch->schid, &sch->schib); + /* Update lpm with verified path mask. */ + sch->lpm = sch->vpm; + /* Repeat path verification? */ + if (cdev->private->flags.doverify) { + cdev->private->flags.doverify = 0; + ccw_device_verify_start(cdev); + return; + } switch (err) { case -EOPNOTSUPP: /* path grouping not supported, just set online. */ cdev->private->options.pgroup = 0; @@ -614,6 +623,7 @@ ccw_device_online(struct ccw_device *cdev) if (!cdev->private->options.pgroup) { /* Start initial path verification. */ cdev->private->state = DEV_STATE_VERIFY; + cdev->private->flags.doverify = 0; ccw_device_verify_start(cdev); return 0; } @@ -660,7 +670,6 @@ ccw_device_offline(struct ccw_device *cdev) /* Are we doing path grouping? */ if (!cdev->private->options.pgroup) { /* No, set state offline immediately. */ - sch->vpm = 0; ccw_device_done(cdev, DEV_STATE_OFFLINE); return 0; } @@ -781,6 +790,7 @@ ccw_device_online_verify(struct ccw_device *cdev, enum dev_event dev_event) } /* Device is idle, we can do the path verification. */ cdev->private->state = DEV_STATE_VERIFY; + cdev->private->flags.doverify = 0; ccw_device_verify_start(cdev); } @@ -1043,9 +1053,9 @@ ccw_device_wait4io_timeout(struct ccw_device *cdev, enum dev_event dev_event) } static void -ccw_device_wait4io_verify(struct ccw_device *cdev, enum dev_event dev_event) +ccw_device_delay_verify(struct ccw_device *cdev, enum dev_event dev_event) { - /* When the I/O has terminated, we have to start verification. */ + /* Start verification after current task finished. */ cdev->private->flags.doverify = 1; } @@ -1111,10 +1121,7 @@ device_trigger_reprobe(struct subchannel *sch) * The pim, pam, pom values may not be accurate, but they are the best * we have before performing device selection :/ */ - sch->lpm = sch->schib.pmcw.pim & - sch->schib.pmcw.pam & - sch->schib.pmcw.pom & - sch->opm; + sch->lpm = sch->schib.pmcw.pam & sch->opm; /* Re-set some bits in the pmcw that were lost. */ sch->schib.pmcw.isc = 3; sch->schib.pmcw.csense = 1; @@ -1238,7 +1245,7 @@ fsm_func_t *dev_jumptable[NR_DEV_STATES][NR_DEV_EVENTS] = { [DEV_EVENT_NOTOPER] = ccw_device_online_notoper, [DEV_EVENT_INTERRUPT] = ccw_device_verify_irq, [DEV_EVENT_TIMEOUT] = ccw_device_onoff_timeout, - [DEV_EVENT_VERIFY] = ccw_device_nop, + [DEV_EVENT_VERIFY] = ccw_device_delay_verify, }, [DEV_STATE_ONLINE] = { [DEV_EVENT_NOTOPER] = ccw_device_online_notoper, @@ -1281,7 +1288,7 @@ fsm_func_t *dev_jumptable[NR_DEV_STATES][NR_DEV_EVENTS] = { [DEV_EVENT_NOTOPER] = ccw_device_online_notoper, [DEV_EVENT_INTERRUPT] = ccw_device_wait4io_irq, [DEV_EVENT_TIMEOUT] = ccw_device_wait4io_timeout, - [DEV_EVENT_VERIFY] = ccw_device_wait4io_verify, + [DEV_EVENT_VERIFY] = ccw_device_delay_verify, }, [DEV_STATE_QUIESCE] = { [DEV_EVENT_NOTOPER] = ccw_device_quiesce_done, @@ -1294,7 +1301,7 @@ fsm_func_t *dev_jumptable[NR_DEV_STATES][NR_DEV_EVENTS] = { [DEV_EVENT_NOTOPER] = ccw_device_nop, [DEV_EVENT_INTERRUPT] = ccw_device_start_id, [DEV_EVENT_TIMEOUT] = ccw_device_bug, - [DEV_EVENT_VERIFY] = ccw_device_nop, + [DEV_EVENT_VERIFY] = ccw_device_start_id, }, [DEV_STATE_DISCONNECTED_SENSE_ID] = { [DEV_EVENT_NOTOPER] = ccw_device_recog_notoper, diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c index acad8f852ed..93a897eebff 100644 --- a/drivers/s390/cio/device_ops.c +++ b/drivers/s390/cio/device_ops.c @@ -256,7 +256,7 @@ ccw_device_get_path_mask(struct ccw_device *cdev) if (!sch) return 0; else - return sch->vpm; + return sch->lpm; } static void diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c index 1693a102dcf..8ca2d078848 100644 --- a/drivers/s390/cio/device_pgid.c +++ b/drivers/s390/cio/device_pgid.c @@ -245,18 +245,17 @@ __ccw_device_do_pgid(struct ccw_device *cdev, __u8 func) memset(&cdev->private->irb, 0, sizeof(struct irb)); /* Try multiple times. */ - ret = -ENODEV; + ret = -EACCES; if (cdev->private->iretry > 0) { cdev->private->iretry--; ret = cio_start (sch, cdev->private->iccws, cdev->private->imask); - /* ret is 0, -EBUSY, -EACCES or -ENODEV */ - if ((ret != -EACCES) && (ret != -ENODEV)) + /* We expect an interrupt in case of success or busy + * indication. */ + if ((ret == 0) || (ret == -EBUSY)) return ret; } - /* PGID command failed on this path. Switch it off. */ - sch->lpm &= ~cdev->private->imask; - sch->vpm &= ~cdev->private->imask; + /* PGID command failed on this path. */ CIO_MSG_EVENT(2, "SPID - Device %04x on Subchannel " "0.%x.%04x, lpm %02X, became 'not operational'\n", cdev->private->devno, sch->schid.ssid, @@ -286,18 +285,17 @@ static int __ccw_device_do_nop(struct ccw_device *cdev) memset(&cdev->private->irb, 0, sizeof(struct irb)); /* Try multiple times. */ - ret = -ENODEV; + ret = -EACCES; if (cdev->private->iretry > 0) { cdev->private->iretry--; ret = cio_start (sch, cdev->private->iccws, cdev->private->imask); - /* ret is 0, -EBUSY, -EACCES or -ENODEV */ - if ((ret != -EACCES) && (ret != -ENODEV)) + /* We expect an interrupt in case of success or busy + * indication. */ + if ((ret == 0) || (ret == -EBUSY)) return ret; } - /* nop command failed on this path. Switch it off. */ - sch->lpm &= ~cdev->private->imask; - sch->vpm &= ~cdev->private->imask; + /* nop command failed on this path. */ CIO_MSG_EVENT(2, "NOP - Device %04x on Subchannel " "0.%x.%04x, lpm %02X, became 'not operational'\n", cdev->private->devno, sch->schid.ssid, @@ -372,27 +370,32 @@ static void __ccw_device_verify_start(struct ccw_device *cdev) { struct subchannel *sch; - __u8 imask, func; + __u8 func; int ret; sch = to_subchannel(cdev->dev.parent); - while (sch->vpm != sch->lpm) { - /* Find first unequal bit in vpm vs. lpm */ - for (imask = 0x80; imask != 0; imask >>= 1) - if ((sch->vpm & imask) != (sch->lpm & imask)) - break; - cdev->private->imask = imask; + /* Repeat for all paths. */ + for (; cdev->private->imask; cdev->private->imask >>= 1, + cdev->private->iretry = 5) { + if ((cdev->private->imask & sch->schib.pmcw.pam) == 0) + /* Path not available, try next. */ + continue; if (cdev->private->options.pgroup) { - func = (sch->vpm & imask) ? - SPID_FUNC_RESIGN : SPID_FUNC_ESTABLISH; + if (sch->opm & cdev->private->imask) + func = SPID_FUNC_ESTABLISH; + else + func = SPID_FUNC_RESIGN; ret = __ccw_device_do_pgid(cdev, func); } else ret = __ccw_device_do_nop(cdev); + /* We expect an interrupt in case of success or busy + * indication. */ if (ret == 0 || ret == -EBUSY) return; - cdev->private->iretry = 5; + /* Permanent path failure, try next. */ } - ccw_device_verify_done(cdev, (sch->lpm != 0) ? 0 : -ENODEV); + /* Done with all paths. */ + ccw_device_verify_done(cdev, (sch->vpm != 0) ? 0 : -ENODEV); } /* @@ -421,14 +424,14 @@ ccw_device_verify_irq(struct ccw_device *cdev, enum dev_event dev_event) else ret = __ccw_device_check_nop(cdev); memset(&cdev->private->irb, 0, sizeof(struct irb)); + switch (ret) { /* 0, -ETIME, -EAGAIN, -EOPNOTSUPP or -EACCES */ case 0: - /* Establish or Resign Path Group done. Update vpm. */ - if ((sch->lpm & cdev->private->imask) != 0) - sch->vpm |= cdev->private->imask; - else - sch->vpm &= ~cdev->private->imask; + /* Path verification ccw finished successfully, update lpm. */ + sch->vpm |= sch->opm & cdev->private->imask; + /* Go on with next path. */ + cdev->private->imask >>= 1; cdev->private->iretry = 5; __ccw_device_verify_start(cdev); break; @@ -441,6 +444,10 @@ ccw_device_verify_irq(struct ccw_device *cdev, enum dev_event dev_event) cdev->private->options.pgroup = 0; else cdev->private->flags.pgid_single = 1; + /* Retry */ + sch->vpm = 0; + cdev->private->imask = 0x80; + cdev->private->iretry = 5; /* fall through. */ case -EAGAIN: /* Try again. */ __ccw_device_verify_start(cdev); @@ -449,8 +456,7 @@ ccw_device_verify_irq(struct ccw_device *cdev, enum dev_event dev_event) ccw_device_verify_done(cdev, -ETIME); break; case -EACCES: /* channel is not operational. */ - sch->lpm &= ~cdev->private->imask; - sch->vpm &= ~cdev->private->imask; + cdev->private->imask >>= 1; cdev->private->iretry = 5; __ccw_device_verify_start(cdev); break; @@ -463,19 +469,17 @@ ccw_device_verify_start(struct ccw_device *cdev) struct subchannel *sch = to_subchannel(cdev->dev.parent); cdev->private->flags.pgid_single = 0; + cdev->private->imask = 0x80; cdev->private->iretry = 5; - /* - * Update sch->lpm with current values to catch paths becoming - * available again. - */ + + /* Start with empty vpm. */ + sch->vpm = 0; + + /* Get current pam. */ if (stsch(sch->schid, &sch->schib)) { ccw_device_verify_done(cdev, -ENODEV); return; } - sch->lpm = sch->schib.pmcw.pim & - sch->schib.pmcw.pam & - sch->schib.pmcw.pom & - sch->opm; __ccw_device_verify_start(cdev); } @@ -524,7 +528,6 @@ ccw_device_disband_irq(struct ccw_device *cdev, enum dev_event dev_event) switch (ret) { /* 0, -ETIME, -EAGAIN, -EOPNOTSUPP or -EACCES */ case 0: /* disband successful. */ - sch->vpm = 0; ccw_device_disband_done(cdev, ret); break; case -EOPNOTSUPP: -- cgit v1.2.3-70-g09d2 From 564337f34cc10fd8f30329e4e5f14f8995db5711 Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Wed, 20 Sep 2006 16:00:01 +0200 Subject: [S390] cio: subchannel evaluation function operates without lock css_evaluate_subchannel() operates subchannel without lock which can lead to erratic behavior caused by concurrent device access. Also split evaluation function to make it more readable. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/css.c | 203 +++++++++++++++++++++++++------------------------ 1 file changed, 104 insertions(+), 99 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index 13eeea3d547..7086a74e987 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -182,136 +182,141 @@ get_subchannel_by_schid(struct subchannel_id schid) return dev ? to_subchannel(dev) : NULL; } - -static inline int -css_get_subchannel_status(struct subchannel *sch, struct subchannel_id schid) +static inline int css_get_subchannel_status(struct subchannel *sch) { struct schib schib; - int cc; - cc = stsch(schid, &schib); - if (cc) - return CIO_GONE; - if (!schib.pmcw.dnv) + if (stsch(sch->schid, &schib) || !schib.pmcw.dnv) return CIO_GONE; - if (sch && sch->schib.pmcw.dnv && - (schib.pmcw.dev != sch->schib.pmcw.dev)) + if (sch->schib.pmcw.dnv && (schib.pmcw.dev != sch->schib.pmcw.dev)) return CIO_REVALIDATE; - if (sch && !sch->lpm) + if (!sch->lpm) return CIO_NO_PATH; return CIO_OPER; } - -static int -css_evaluate_subchannel(struct subchannel_id schid, int slow) + +static int css_evaluate_known_subchannel(struct subchannel *sch, int slow) { int event, ret, disc; - struct subchannel *sch; unsigned long flags; + enum { NONE, UNREGISTER, UNREGISTER_PROBE, REPROBE } action; - sch = get_subchannel_by_schid(schid); - disc = sch ? device_is_disconnected(sch) : 0; + spin_lock_irqsave(&sch->lock, flags); + disc = device_is_disconnected(sch); if (disc && slow) { - if (sch) - put_device(&sch->dev); - return 0; /* Already processed. */ + /* Disconnected devices are evaluated directly only.*/ + spin_unlock_irqrestore(&sch->lock, flags); + return 0; } - /* - * We've got a machine check, so running I/O won't get an interrupt. - * Kill any pending timers. - */ - if (sch) - device_kill_pending_timer(sch); + /* No interrupt after machine check - kill pending timers. */ + device_kill_pending_timer(sch); if (!disc && !slow) { - if (sch) - put_device(&sch->dev); - return -EAGAIN; /* Will be done on the slow path. */ + /* Non-disconnected devices are evaluated on the slow path. */ + spin_unlock_irqrestore(&sch->lock, flags); + return -EAGAIN; } - event = css_get_subchannel_status(sch, schid); + event = css_get_subchannel_status(sch); CIO_MSG_EVENT(4, "Evaluating schid 0.%x.%04x, event %d, %s, %s path.\n", - schid.ssid, schid.sch_no, event, - sch?(disc?"disconnected":"normal"):"unknown", - slow?"slow":"fast"); + sch->schid.ssid, sch->schid.sch_no, event, + disc ? "disconnected" : "normal", + slow ? "slow" : "fast"); + /* Analyze subchannel status. */ + action = NONE; switch (event) { case CIO_NO_PATH: - case CIO_GONE: - if (!sch) { - /* Never used this subchannel. Ignore. */ - ret = 0; + if (disc) { + /* Check if paths have become available. */ + action = REPROBE; break; } - if (disc && (event == CIO_NO_PATH)) { - /* - * Uargh, hack again. Because we don't get a machine - * check on configure on, our path bookkeeping can - * be out of date here (it's fine while we only do - * logical varying or get chsc machine checks). We - * need to force reprobing or we might miss devices - * coming operational again. It won't do harm in real - * no path situations. - */ - spin_lock_irqsave(&sch->lock, flags); - device_trigger_reprobe(sch); + /* fall through */ + case CIO_GONE: + /* Prevent unwanted effects when opening lock. */ + cio_disable_subchannel(sch); + device_set_disconnected(sch); + /* Ask driver what to do with device. */ + action = UNREGISTER; + if (sch->driver && sch->driver->notify) { spin_unlock_irqrestore(&sch->lock, flags); - ret = 0; - break; - } - if (sch->driver && sch->driver->notify && - sch->driver->notify(&sch->dev, event)) { - cio_disable_subchannel(sch); - device_set_disconnected(sch); - ret = 0; - break; + ret = sch->driver->notify(&sch->dev, event); + spin_lock_irqsave(&sch->lock, flags); + if (ret) + action = NONE; } - /* - * Unregister subchannel. - * The device will be killed automatically. - */ - cio_disable_subchannel(sch); - css_sch_device_unregister(sch); - /* Reset intparm to zeroes. */ - sch->schib.pmcw.intparm = 0; - cio_modify(sch); - put_device(&sch->dev); - ret = 0; break; case CIO_REVALIDATE: - /* - * Revalidation machine check. Sick. - * We don't notify the driver since we have to throw the device - * away in any case. - */ - if (!disc) { - css_sch_device_unregister(sch); - /* Reset intparm to zeroes. */ - sch->schib.pmcw.intparm = 0; - cio_modify(sch); - put_device(&sch->dev); - ret = css_probe_device(schid); - } else { - /* - * We can't immediately deregister the disconnected - * device since it might block. - */ - spin_lock_irqsave(&sch->lock, flags); - device_trigger_reprobe(sch); - spin_unlock_irqrestore(&sch->lock, flags); - ret = 0; - } + /* Device will be removed, so no notify necessary. */ + if (disc) + /* Reprobe because immediate unregister might block. */ + action = REPROBE; + else + action = UNREGISTER_PROBE; break; case CIO_OPER: - if (disc) { - spin_lock_irqsave(&sch->lock, flags); + if (disc) /* Get device operational again. */ - device_trigger_reprobe(sch); - spin_unlock_irqrestore(&sch->lock, flags); - } - ret = sch ? 0 : css_probe_device(schid); + action = REPROBE; + break; + } + /* Perform action. */ + ret = 0; + switch (action) { + case UNREGISTER: + case UNREGISTER_PROBE: + /* Unregister device (will use subchannel lock). */ + spin_unlock_irqrestore(&sch->lock, flags); + css_sch_device_unregister(sch); + spin_lock_irqsave(&sch->lock, flags); + + /* Reset intparm to zeroes. */ + sch->schib.pmcw.intparm = 0; + cio_modify(sch); + + /* Probe if necessary. */ + if (action == UNREGISTER_PROBE) + ret = css_probe_device(sch->schid); + break; + case REPROBE: + device_trigger_reprobe(sch); break; default: - BUG(); - ret = 0; + break; + } + spin_unlock_irqrestore(&sch->lock, flags); + + return ret; +} + +static int css_evaluate_new_subchannel(struct subchannel_id schid, int slow) +{ + struct schib schib; + + if (!slow) { + /* Will be done on the slow path. */ + return -EAGAIN; } + if (stsch(schid, &schib) || !schib.pmcw.dnv) { + /* Unusable - ignore. */ + return 0; + } + CIO_MSG_EVENT(4, "Evaluating schid 0.%x.%04x, event %d, unknown, " + "slow path.\n", schid.ssid, schid.sch_no, CIO_OPER); + + return css_probe_device(schid); +} + +static int css_evaluate_subchannel(struct subchannel_id schid, int slow) +{ + struct subchannel *sch; + int ret; + + sch = get_subchannel_by_schid(schid); + if (sch) { + ret = css_evaluate_known_subchannel(sch, slow); + put_device(&sch->dev); + } else + ret = css_evaluate_new_subchannel(schid, slow); + return ret; } -- cgit v1.2.3-70-g09d2 From cce9e06d100df19a327b19f23adad76e7bf63edd Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 21 Aug 2006 21:08:13 +1000 Subject: [CRYPTO] api: Split out low-level API The crypto API is made up of the part facing users such as IPsec and the low-level part which is used by cryptographic entities such as algorithms. This patch splits out the latter so that the two APIs are more clearly delineated. As a bonus the low-level API can now be modularised if all algorithms are built as modules. Signed-off-by: Herbert Xu --- crypto/Kconfig | 84 ++++++++++++++++++++-------------- crypto/Makefile | 7 +-- crypto/algapi.c | 118 ++++++++++++++++++++++++++++++++++++++++++++++++ crypto/api.c | 97 +-------------------------------------- crypto/internal.h | 6 ++- crypto/proc.c | 5 ++ drivers/crypto/Kconfig | 3 +- include/crypto/algapi.h | 18 ++++++++ 8 files changed, 204 insertions(+), 134 deletions(-) create mode 100644 crypto/algapi.c create mode 100644 include/crypto/algapi.h (limited to 'drivers') diff --git a/crypto/Kconfig b/crypto/Kconfig index fa927a287a1..aabc6319522 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -9,47 +9,54 @@ config CRYPTO help This option provides the core Cryptographic API. +if CRYPTO + +config CRYPTO_ALGAPI + tristate + help + This option provides the API for cryptographic algorithms. + config CRYPTO_HMAC bool "HMAC support" - depends on CRYPTO help HMAC: Keyed-Hashing for Message Authentication (RFC2104). This is required for IPSec. config CRYPTO_NULL tristate "Null algorithms" - depends on CRYPTO + select CRYPTO_ALGAPI help These are 'Null' algorithms, used by IPsec, which do nothing. config CRYPTO_MD4 tristate "MD4 digest algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI help MD4 message digest algorithm (RFC1320). config CRYPTO_MD5 tristate "MD5 digest algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI help MD5 message digest algorithm (RFC1321). config CRYPTO_SHA1 tristate "SHA1 digest algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI help SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2). config CRYPTO_SHA1_S390 tristate "SHA1 digest algorithm (s390)" - depends on CRYPTO && S390 + depends on S390 + select CRYPTO_ALGAPI help This is the s390 hardware accelerated implementation of the SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2). config CRYPTO_SHA256 tristate "SHA256 digest algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI help SHA256 secure hash standard (DFIPS 180-2). @@ -58,7 +65,8 @@ config CRYPTO_SHA256 config CRYPTO_SHA256_S390 tristate "SHA256 digest algorithm (s390)" - depends on CRYPTO && S390 + depends on S390 + select CRYPTO_ALGAPI help This is the s390 hardware accelerated implementation of the SHA256 secure hash standard (DFIPS 180-2). @@ -68,7 +76,7 @@ config CRYPTO_SHA256_S390 config CRYPTO_SHA512 tristate "SHA384 and SHA512 digest algorithms" - depends on CRYPTO + select CRYPTO_ALGAPI help SHA512 secure hash standard (DFIPS 180-2). @@ -80,7 +88,7 @@ config CRYPTO_SHA512 config CRYPTO_WP512 tristate "Whirlpool digest algorithms" - depends on CRYPTO + select CRYPTO_ALGAPI help Whirlpool hash algorithm 512, 384 and 256-bit hashes @@ -92,7 +100,7 @@ config CRYPTO_WP512 config CRYPTO_TGR192 tristate "Tiger digest algorithms" - depends on CRYPTO + select CRYPTO_ALGAPI help Tiger hash algorithm 192, 160 and 128-bit hashes @@ -105,19 +113,20 @@ config CRYPTO_TGR192 config CRYPTO_DES tristate "DES and Triple DES EDE cipher algorithms" - depends on CRYPTO + select CRYPTO_ALGAPI help DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3). config CRYPTO_DES_S390 tristate "DES and Triple DES cipher algorithms (s390)" - depends on CRYPTO && S390 + depends on S390 + select CRYPTO_ALGAPI help DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3). config CRYPTO_BLOWFISH tristate "Blowfish cipher algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI help Blowfish cipher algorithm, by Bruce Schneier. @@ -130,7 +139,7 @@ config CRYPTO_BLOWFISH config CRYPTO_TWOFISH tristate "Twofish cipher algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI select CRYPTO_TWOFISH_COMMON help Twofish cipher algorithm. @@ -145,14 +154,14 @@ config CRYPTO_TWOFISH config CRYPTO_TWOFISH_COMMON tristate - depends on CRYPTO help Common parts of the Twofish cipher algorithm shared by the generic c and the assembler implementations. config CRYPTO_TWOFISH_586 tristate "Twofish cipher algorithms (i586)" - depends on CRYPTO && ((X86 || UML_X86) && !64BIT) + depends on (X86 || UML_X86) && !64BIT + select CRYPTO_ALGAPI select CRYPTO_TWOFISH_COMMON help Twofish cipher algorithm. @@ -167,7 +176,8 @@ config CRYPTO_TWOFISH_586 config CRYPTO_TWOFISH_X86_64 tristate "Twofish cipher algorithm (x86_64)" - depends on CRYPTO && ((X86 || UML_X86) && 64BIT) + depends on (X86 || UML_X86) && 64BIT + select CRYPTO_ALGAPI select CRYPTO_TWOFISH_COMMON help Twofish cipher algorithm (x86_64). @@ -182,7 +192,7 @@ config CRYPTO_TWOFISH_X86_64 config CRYPTO_SERPENT tristate "Serpent cipher algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI help Serpent cipher algorithm, by Anderson, Biham & Knudsen. @@ -195,7 +205,7 @@ config CRYPTO_SERPENT config CRYPTO_AES tristate "AES cipher algorithms" - depends on CRYPTO + select CRYPTO_ALGAPI help AES cipher algorithms (FIPS-197). AES uses the Rijndael algorithm. @@ -215,7 +225,8 @@ config CRYPTO_AES config CRYPTO_AES_586 tristate "AES cipher algorithms (i586)" - depends on CRYPTO && ((X86 || UML_X86) && !64BIT) + depends on (X86 || UML_X86) && !64BIT + select CRYPTO_ALGAPI help AES cipher algorithms (FIPS-197). AES uses the Rijndael algorithm. @@ -235,7 +246,8 @@ config CRYPTO_AES_586 config CRYPTO_AES_X86_64 tristate "AES cipher algorithms (x86_64)" - depends on CRYPTO && ((X86 || UML_X86) && 64BIT) + depends on (X86 || UML_X86) && 64BIT + select CRYPTO_ALGAPI help AES cipher algorithms (FIPS-197). AES uses the Rijndael algorithm. @@ -255,7 +267,8 @@ config CRYPTO_AES_X86_64 config CRYPTO_AES_S390 tristate "AES cipher algorithms (s390)" - depends on CRYPTO && S390 + depends on S390 + select CRYPTO_ALGAPI help This is the s390 hardware accelerated implementation of the AES cipher algorithms (FIPS-197). AES uses the Rijndael @@ -275,21 +288,21 @@ config CRYPTO_AES_S390 config CRYPTO_CAST5 tristate "CAST5 (CAST-128) cipher algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI help The CAST5 encryption algorithm (synonymous with CAST-128) is described in RFC2144. config CRYPTO_CAST6 tristate "CAST6 (CAST-256) cipher algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI help The CAST6 encryption algorithm (synonymous with CAST-256) is described in RFC2612. config CRYPTO_TEA tristate "TEA, XTEA and XETA cipher algorithms" - depends on CRYPTO + select CRYPTO_ALGAPI help TEA cipher algorithm. @@ -306,7 +319,7 @@ config CRYPTO_TEA config CRYPTO_ARC4 tristate "ARC4 cipher algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI help ARC4 cipher algorithm. @@ -317,7 +330,7 @@ config CRYPTO_ARC4 config CRYPTO_KHAZAD tristate "Khazad cipher algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI help Khazad cipher algorithm. @@ -330,7 +343,7 @@ config CRYPTO_KHAZAD config CRYPTO_ANUBIS tristate "Anubis cipher algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI help Anubis cipher algorithm. @@ -345,7 +358,7 @@ config CRYPTO_ANUBIS config CRYPTO_DEFLATE tristate "Deflate compression algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI select ZLIB_INFLATE select ZLIB_DEFLATE help @@ -356,7 +369,7 @@ config CRYPTO_DEFLATE config CRYPTO_MICHAEL_MIC tristate "Michael MIC keyed digest algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI help Michael MIC is used for message integrity protection in TKIP (IEEE 802.11i). This algorithm is required for TKIP, but it @@ -365,7 +378,7 @@ config CRYPTO_MICHAEL_MIC config CRYPTO_CRC32C tristate "CRC32c CRC algorithm" - depends on CRYPTO + select CRYPTO_ALGAPI select LIBCRC32C help Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used @@ -375,10 +388,13 @@ config CRYPTO_CRC32C config CRYPTO_TEST tristate "Testing module" - depends on CRYPTO && m + depends on m + select CRYPTO_ALGAPI help Quick & dirty crypto test module. source "drivers/crypto/Kconfig" -endmenu +endif # if CRYPTO + +endmenu diff --git a/crypto/Makefile b/crypto/Makefile index fe934f1001c..6d51f80753a 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -2,10 +2,11 @@ # Cryptographic API # -proc-crypto-$(CONFIG_PROC_FS) = proc.o +obj-$(CONFIG_CRYPTO) += api.o scatterwalk.o cipher.o digest.o compress.o -obj-$(CONFIG_CRYPTO) += api.o scatterwalk.o cipher.o digest.o compress.o \ - $(proc-crypto-y) +crypto_algapi-$(CONFIG_PROC_FS) += proc.o +crypto_algapi-objs := algapi.o $(crypto_algapi-y) +obj-$(CONFIG_CRYPTO_ALGAPI) += crypto_algapi.o obj-$(CONFIG_CRYPTO_HMAC) += hmac.o obj-$(CONFIG_CRYPTO_NULL) += crypto_null.o diff --git a/crypto/algapi.c b/crypto/algapi.c new file mode 100644 index 00000000000..a65c6ccfbe1 --- /dev/null +++ b/crypto/algapi.c @@ -0,0 +1,118 @@ +/* + * Cryptographic API for algorithms (i.e., low-level API). + * + * Copyright (c) 2006 Herbert Xu + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + */ + +#include +#include +#include +#include +#include + +#include "internal.h" + +static inline int crypto_set_driver_name(struct crypto_alg *alg) +{ + static const char suffix[] = "-generic"; + char *driver_name = alg->cra_driver_name; + int len; + + if (*driver_name) + return 0; + + len = strlcpy(driver_name, alg->cra_name, CRYPTO_MAX_ALG_NAME); + if (len + sizeof(suffix) > CRYPTO_MAX_ALG_NAME) + return -ENAMETOOLONG; + + memcpy(driver_name + len, suffix, sizeof(suffix)); + return 0; +} + +int crypto_register_alg(struct crypto_alg *alg) +{ + int ret; + struct crypto_alg *q; + + if (alg->cra_alignmask & (alg->cra_alignmask + 1)) + return -EINVAL; + + if (alg->cra_alignmask & alg->cra_blocksize) + return -EINVAL; + + if (alg->cra_blocksize > PAGE_SIZE / 8) + return -EINVAL; + + if (alg->cra_priority < 0) + return -EINVAL; + + ret = crypto_set_driver_name(alg); + if (unlikely(ret)) + return ret; + + down_write(&crypto_alg_sem); + + list_for_each_entry(q, &crypto_alg_list, cra_list) { + if (q == alg) { + ret = -EEXIST; + goto out; + } + } + + list_add(&alg->cra_list, &crypto_alg_list); + atomic_set(&alg->cra_refcnt, 1); +out: + up_write(&crypto_alg_sem); + return ret; +} +EXPORT_SYMBOL_GPL(crypto_register_alg); + +int crypto_unregister_alg(struct crypto_alg *alg) +{ + int ret = -ENOENT; + struct crypto_alg *q; + + down_write(&crypto_alg_sem); + list_for_each_entry(q, &crypto_alg_list, cra_list) { + if (alg == q) { + list_del(&alg->cra_list); + ret = 0; + goto out; + } + } +out: + up_write(&crypto_alg_sem); + + if (ret) + return ret; + + BUG_ON(atomic_read(&alg->cra_refcnt) != 1); + if (alg->cra_destroy) + alg->cra_destroy(alg); + + return 0; +} +EXPORT_SYMBOL_GPL(crypto_unregister_alg); + +static int __init crypto_algapi_init(void) +{ + crypto_init_proc(); + return 0; +} + +static void __exit crypto_algapi_exit(void) +{ + crypto_exit_proc(); +} + +module_init(crypto_algapi_init); +module_exit(crypto_algapi_exit); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Cryptographic algorithms API"); diff --git a/crypto/api.c b/crypto/api.c index 5994a58ef95..c922090b484 100644 --- a/crypto/api.c +++ b/crypto/api.c @@ -15,19 +15,17 @@ * */ -#include -#include -#include #include #include #include -#include #include #include #include "internal.h" LIST_HEAD(crypto_alg_list); +EXPORT_SYMBOL_GPL(crypto_alg_list); DECLARE_RWSEM(crypto_alg_sem); +EXPORT_SYMBOL_GPL(crypto_alg_sem); static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg) { @@ -239,86 +237,6 @@ void crypto_free_tfm(struct crypto_tfm *tfm) kfree(tfm); } -static inline int crypto_set_driver_name(struct crypto_alg *alg) -{ - static const char suffix[] = "-generic"; - char *driver_name = alg->cra_driver_name; - int len; - - if (*driver_name) - return 0; - - len = strlcpy(driver_name, alg->cra_name, CRYPTO_MAX_ALG_NAME); - if (len + sizeof(suffix) > CRYPTO_MAX_ALG_NAME) - return -ENAMETOOLONG; - - memcpy(driver_name + len, suffix, sizeof(suffix)); - return 0; -} - -int crypto_register_alg(struct crypto_alg *alg) -{ - int ret; - struct crypto_alg *q; - - if (alg->cra_alignmask & (alg->cra_alignmask + 1)) - return -EINVAL; - - if (alg->cra_alignmask & alg->cra_blocksize) - return -EINVAL; - - if (alg->cra_blocksize > PAGE_SIZE / 8) - return -EINVAL; - - if (alg->cra_priority < 0) - return -EINVAL; - - ret = crypto_set_driver_name(alg); - if (unlikely(ret)) - return ret; - - down_write(&crypto_alg_sem); - - list_for_each_entry(q, &crypto_alg_list, cra_list) { - if (q == alg) { - ret = -EEXIST; - goto out; - } - } - - list_add(&alg->cra_list, &crypto_alg_list); - atomic_set(&alg->cra_refcnt, 1); -out: - up_write(&crypto_alg_sem); - return ret; -} - -int crypto_unregister_alg(struct crypto_alg *alg) -{ - int ret = -ENOENT; - struct crypto_alg *q; - - down_write(&crypto_alg_sem); - list_for_each_entry(q, &crypto_alg_list, cra_list) { - if (alg == q) { - list_del(&alg->cra_list); - ret = 0; - goto out; - } - } -out: - up_write(&crypto_alg_sem); - - if (ret) - return ret; - - BUG_ON(atomic_read(&alg->cra_refcnt) != 1); - if (alg->cra_destroy) - alg->cra_destroy(alg); - - return 0; -} - int crypto_alg_available(const char *name, u32 flags) { int ret = 0; @@ -332,17 +250,6 @@ int crypto_alg_available(const char *name, u32 flags) return ret; } -static int __init init_crypto(void) -{ - printk(KERN_INFO "Initializing Cryptographic API\n"); - crypto_init_proc(); - return 0; -} - -__initcall(init_crypto); - -EXPORT_SYMBOL_GPL(crypto_register_alg); -EXPORT_SYMBOL_GPL(crypto_unregister_alg); EXPORT_SYMBOL_GPL(crypto_alloc_tfm); EXPORT_SYMBOL_GPL(crypto_free_tfm); EXPORT_SYMBOL_GPL(crypto_alg_available); diff --git a/crypto/internal.h b/crypto/internal.h index 959e602909a..26f47d33155 100644 --- a/crypto/internal.h +++ b/crypto/internal.h @@ -12,7 +12,8 @@ */ #ifndef _CRYPTO_INTERNAL_H #define _CRYPTO_INTERNAL_H -#include + +#include #include #include #include @@ -64,9 +65,12 @@ static inline void crypto_free_hmac_block(struct crypto_tfm *tfm) #ifdef CONFIG_PROC_FS void __init crypto_init_proc(void); +void __exit crypto_exit_proc(void); #else static inline void crypto_init_proc(void) { } +static inline void crypto_exit_proc(void) +{ } #endif static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg, diff --git a/crypto/proc.c b/crypto/proc.c index 8543b7a157d..9e573b17e88 100644 --- a/crypto/proc.c +++ b/crypto/proc.c @@ -113,3 +113,8 @@ void __init crypto_init_proc(void) if (proc) proc->proc_fops = &proc_crypto_ops; } + +void __exit crypto_exit_proc(void) +{ + remove_proc_entry("crypto", NULL); +} diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index 4263935443c..ba23683ab8c 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -2,7 +2,8 @@ menu "Hardware crypto devices" config CRYPTO_DEV_PADLOCK tristate "Support for VIA PadLock ACE" - depends on CRYPTO && X86_32 + depends on X86_32 + select CRYPTO_ALGAPI help Some VIA processors come with an integrated crypto engine (so called VIA PadLock ACE, Advanced Cryptography Engine) diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h new file mode 100644 index 00000000000..ed68d494b36 --- /dev/null +++ b/include/crypto/algapi.h @@ -0,0 +1,18 @@ +/* + * Cryptographic API for algorithms (i.e., low-level API). + * + * Copyright (c) 2006 Herbert Xu + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + */ +#ifndef _CRYPTO_ALGAPI_H +#define _CRYPTO_ALGAPI_H + +#include + +#endif /* _CRYPTO_ALGAPI_H */ + -- cgit v1.2.3-70-g09d2 From 1191f0a49390caf16f4a2831a4fc373757471ad6 Mon Sep 17 00:00:00 2001 From: Michal Ludvig Date: Sun, 6 Aug 2006 22:46:20 +1000 Subject: [CRYPTO] padlock: Get rid of padlock-generic.c Merge padlock-generic.c into padlock-aes.c and compile AES as a standalone module. We won't make a monolithic padlock.ko with all supported algorithms, instead we'll compile each driver into its own module. Signed-off-by: Michal Ludvig Signed-off-by: Herbert Xu --- drivers/crypto/Kconfig | 16 ++++++---- drivers/crypto/Makefile | 8 +---- drivers/crypto/padlock-aes.c | 34 +++++++++++++++++++--- drivers/crypto/padlock-generic.c | 63 ---------------------------------------- 4 files changed, 42 insertions(+), 79 deletions(-) delete mode 100644 drivers/crypto/padlock-generic.c (limited to 'drivers') diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index ba23683ab8c..d260c86218f 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -1,24 +1,30 @@ menu "Hardware crypto devices" config CRYPTO_DEV_PADLOCK - tristate "Support for VIA PadLock ACE" + bool "Support for VIA PadLock ACE" depends on X86_32 select CRYPTO_ALGAPI + default y help Some VIA processors come with an integrated crypto engine (so called VIA PadLock ACE, Advanced Cryptography Engine) - that provides instructions for very fast {en,de}cryption - with some algorithms. + that provides instructions for very fast cryptographic + operations with supported algorithms. The instructions are used only when the CPU supports them. Otherwise software encryption is used. If you are unsure, say Y. config CRYPTO_DEV_PADLOCK_AES - bool "Support for AES in VIA PadLock" + tristate "PadLock driver for AES algorithm" depends on CRYPTO_DEV_PADLOCK - default y + default m help Use VIA PadLock for AES algorithm. + Available in VIA C3 and newer CPUs. + + If unsure say M. The compiled module will be + called padlock-aes.ko + endmenu diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile index 45426ca19a2..5e7d7d5e805 100644 --- a/drivers/crypto/Makefile +++ b/drivers/crypto/Makefile @@ -1,7 +1 @@ - -obj-$(CONFIG_CRYPTO_DEV_PADLOCK) += padlock.o - -padlock-objs-$(CONFIG_CRYPTO_DEV_PADLOCK_AES) += padlock-aes.o - -padlock-objs := padlock-generic.o $(padlock-objs-y) - +obj-$(CONFIG_CRYPTO_DEV_PADLOCK_AES) += padlock-aes.o diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c index b643d71298a..ee33bd6c1b7 100644 --- a/drivers/crypto/padlock-aes.c +++ b/drivers/crypto/padlock-aes.c @@ -495,15 +495,41 @@ static struct crypto_alg aes_alg = { } }; -int __init padlock_init_aes(void) +static int __init padlock_init(void) { - printk(KERN_NOTICE PFX "Using VIA PadLock ACE for AES algorithm.\n"); + int ret; + + if (!cpu_has_xcrypt) { + printk(KERN_ERR PFX "VIA PadLock not detected.\n"); + return -ENODEV; + } + + if (!cpu_has_xcrypt_enabled) { + printk(KERN_ERR PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n"); + return -ENODEV; + } gen_tabs(); - return crypto_register_alg(&aes_alg); + if ((ret = crypto_register_alg(&aes_alg))) { + printk(KERN_ERR PFX "VIA PadLock AES initialization failed.\n"); + return ret; + } + + printk(KERN_NOTICE PFX "Using VIA PadLock ACE for AES algorithm.\n"); + + return ret; } -void __exit padlock_fini_aes(void) +static void __exit padlock_fini(void) { crypto_unregister_alg(&aes_alg); } + +module_init(padlock_init); +module_exit(padlock_fini); + +MODULE_DESCRIPTION("VIA PadLock AES algorithm support"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Michal Ludvig"); + +MODULE_ALIAS("aes-padlock"); diff --git a/drivers/crypto/padlock-generic.c b/drivers/crypto/padlock-generic.c deleted file mode 100644 index 18cf0e8274a..00000000000 --- a/drivers/crypto/padlock-generic.c +++ /dev/null @@ -1,63 +0,0 @@ -/* - * Cryptographic API. - * - * Support for VIA PadLock hardware crypto engine. - * - * Copyright (c) 2004 Michal Ludvig - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include -#include -#include -#include -#include -#include -#include "padlock.h" - -static int __init -padlock_init(void) -{ - int ret = -ENOSYS; - - if (!cpu_has_xcrypt) { - printk(KERN_ERR PFX "VIA PadLock not detected.\n"); - return -ENODEV; - } - - if (!cpu_has_xcrypt_enabled) { - printk(KERN_ERR PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n"); - return -ENODEV; - } - -#ifdef CONFIG_CRYPTO_DEV_PADLOCK_AES - if ((ret = padlock_init_aes())) { - printk(KERN_ERR PFX "VIA PadLock AES initialization failed.\n"); - return ret; - } -#endif - - if (ret == -ENOSYS) - printk(KERN_ERR PFX "Hmm, VIA PadLock was compiled without any algorithm.\n"); - - return ret; -} - -static void __exit -padlock_fini(void) -{ -#ifdef CONFIG_CRYPTO_DEV_PADLOCK_AES - padlock_fini_aes(); -#endif -} - -module_init(padlock_init); -module_exit(padlock_fini); - -MODULE_DESCRIPTION("VIA PadLock crypto engine support."); -MODULE_LICENSE("Dual BSD/GPL"); -MODULE_AUTHOR("Michal Ludvig"); -- cgit v1.2.3-70-g09d2 From db5e9a42373ae6d84c4b0179c2fe0aba866474e8 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 9 Jul 2006 10:35:49 +1000 Subject: [CRYPTO] padlock: Add compatibility alias after rename Whenever we rename modules we should add an alias to ensure that existing users can still locate the new module. This patch also gets rid of the now unused module function prototypes from padlock.h. Signed-off-by: Herbert Xu --- drivers/crypto/padlock-aes.c | 3 +++ drivers/crypto/padlock.h | 5 ----- 2 files changed, 3 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c index ee33bd6c1b7..241052da278 100644 --- a/drivers/crypto/padlock-aes.c +++ b/drivers/crypto/padlock-aes.c @@ -533,3 +533,6 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Michal Ludvig"); MODULE_ALIAS("aes-padlock"); + +/* This module used to be called padlock. */ +MODULE_ALIAS("padlock"); diff --git a/drivers/crypto/padlock.h b/drivers/crypto/padlock.h index b78489bc298..e2ee3b689db 100644 --- a/drivers/crypto/padlock.h +++ b/drivers/crypto/padlock.h @@ -28,9 +28,4 @@ struct cword { #define PFX "padlock: " -#ifdef CONFIG_CRYPTO_DEV_PADLOCK_AES -int padlock_init_aes(void); -void padlock_fini_aes(void); -#endif - #endif /* _CRYPTO_PADLOCK_H */ -- cgit v1.2.3-70-g09d2 From ccc17c34d676f116bd09dd36a3b01627bc6a2f8a Mon Sep 17 00:00:00 2001 From: Michal Ludvig Date: Sat, 15 Jul 2006 10:23:49 +1000 Subject: [CRYPTO] padlock: Update private header file PADLOCK_CRA_PRIORITY is shared between padlock-aes and padlock-sha so it should be in the header. On the other hand "struct cword" is only used in padlock-aes.c so it's unnecessary to have it in padlock.h Signed-off-by: Michal Ludvig Signed-off-by: Herbert Xu --- drivers/crypto/padlock-aes.c | 13 ++++++++++++- drivers/crypto/padlock.h | 13 ++----------- 2 files changed, 14 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c index 241052da278..149e54b0ea2 100644 --- a/drivers/crypto/padlock-aes.c +++ b/drivers/crypto/padlock-aes.c @@ -59,6 +59,17 @@ #define AES_EXTENDED_KEY_SIZE 64 /* in uint32_t units */ #define AES_EXTENDED_KEY_SIZE_B (AES_EXTENDED_KEY_SIZE * sizeof(uint32_t)) +/* Control word. */ +struct cword { + unsigned int __attribute__ ((__packed__)) + rounds:4, + algo:3, + keygen:1, + interm:1, + encdec:1, + ksize:2; +} __attribute__ ((__aligned__(PADLOCK_ALIGNMENT))); + /* Whenever making any changes to the following * structure *make sure* you keep E, d_data * and cword aligned on 16 Bytes boundaries!!! */ @@ -473,7 +484,7 @@ static unsigned int aes_decrypt_cbc(const struct cipher_desc *desc, u8 *out, static struct crypto_alg aes_alg = { .cra_name = "aes", .cra_driver_name = "aes-padlock", - .cra_priority = 300, + .cra_priority = PADLOCK_CRA_PRIORITY, .cra_flags = CRYPTO_ALG_TYPE_CIPHER, .cra_blocksize = AES_BLOCK_SIZE, .cra_ctxsize = sizeof(struct aes_ctx), diff --git a/drivers/crypto/padlock.h b/drivers/crypto/padlock.h index e2ee3b689db..7e3385b0904 100644 --- a/drivers/crypto/padlock.h +++ b/drivers/crypto/padlock.h @@ -15,17 +15,8 @@ #define PADLOCK_ALIGNMENT 16 -/* Control word. */ -struct cword { - unsigned int __attribute__ ((__packed__)) - rounds:4, - algo:3, - keygen:1, - interm:1, - encdec:1, - ksize:2; -} __attribute__ ((__aligned__(PADLOCK_ALIGNMENT))); - #define PFX "padlock: " +#define PADLOCK_CRA_PRIORITY 300 + #endif /* _CRYPTO_PADLOCK_H */ -- cgit v1.2.3-70-g09d2 From 6c833275152b454d311f0e70b5e6bf028b4a2aaf Mon Sep 17 00:00:00 2001 From: Michal Ludvig Date: Wed, 12 Jul 2006 12:29:38 +1000 Subject: [CRYPTO] padlock: Driver for SHA1 / SHA256 algorithms Support for SHA1 / SHA256 algorithms in VIA C7 processors. Signed-off-by: Michal Ludvig Signed-off-by: Herbert Xu --- drivers/crypto/Kconfig | 14 ++ drivers/crypto/Makefile | 1 + drivers/crypto/padlock-sha.c | 339 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 354 insertions(+) create mode 100644 drivers/crypto/padlock-sha.c (limited to 'drivers') diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index d260c86218f..910c715325b 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -27,4 +27,18 @@ config CRYPTO_DEV_PADLOCK_AES If unsure say M. The compiled module will be called padlock-aes.ko +config CRYPTO_DEV_PADLOCK_SHA + tristate "PadLock driver for SHA1 and SHA256 algorithms" + depends on CRYPTO_DEV_PADLOCK + select CRYPTO_SHA1 + select CRYPTO_SHA256 + default m + help + Use VIA PadLock for SHA1/SHA256 algorithms. + + Available in VIA C7 and newer processors. + + If unsure say M. The compiled module will be + called padlock-sha.ko + endmenu diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile index 5e7d7d5e805..df498c7d97a 100644 --- a/drivers/crypto/Makefile +++ b/drivers/crypto/Makefile @@ -1 +1,2 @@ obj-$(CONFIG_CRYPTO_DEV_PADLOCK_AES) += padlock-aes.o +obj-$(CONFIG_CRYPTO_DEV_PADLOCK_SHA) += padlock-sha.o diff --git a/drivers/crypto/padlock-sha.c b/drivers/crypto/padlock-sha.c new file mode 100644 index 00000000000..f7010038033 --- /dev/null +++ b/drivers/crypto/padlock-sha.c @@ -0,0 +1,339 @@ +/* + * Cryptographic API. + * + * Support for VIA PadLock hardware crypto engine. + * + * Copyright (c) 2006 Michal Ludvig + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "padlock.h" + +#define SHA1_DEFAULT_FALLBACK "sha1-generic" +#define SHA1_DIGEST_SIZE 20 +#define SHA1_HMAC_BLOCK_SIZE 64 + +#define SHA256_DEFAULT_FALLBACK "sha256-generic" +#define SHA256_DIGEST_SIZE 32 +#define SHA256_HMAC_BLOCK_SIZE 64 + +static char *sha1_fallback = SHA1_DEFAULT_FALLBACK; +static char *sha256_fallback = SHA256_DEFAULT_FALLBACK; + +module_param(sha1_fallback, charp, 0644); +module_param(sha256_fallback, charp, 0644); + +MODULE_PARM_DESC(sha1_fallback, "Fallback driver for SHA1. Default is " + SHA1_DEFAULT_FALLBACK); +MODULE_PARM_DESC(sha256_fallback, "Fallback driver for SHA256. Default is " + SHA256_DEFAULT_FALLBACK); + +struct padlock_sha_ctx { + char *data; + size_t used; + int bypass; + void (*f_sha_padlock)(const char *in, char *out, int count); + struct crypto_tfm *fallback_tfm; +}; + +static inline struct padlock_sha_ctx *ctx(struct crypto_tfm *tfm) +{ + return (struct padlock_sha_ctx *)(crypto_tfm_ctx(tfm)); +} + +/* We'll need aligned address on the stack */ +#define NEAREST_ALIGNED(ptr) \ + ((void *)ALIGN((size_t)(ptr), PADLOCK_ALIGNMENT)) + +static struct crypto_alg sha1_alg, sha256_alg; + +static void padlock_sha_bypass(struct crypto_tfm *tfm) +{ + if (ctx(tfm)->bypass) + return; + + BUG_ON(!ctx(tfm)->fallback_tfm); + + crypto_digest_init(ctx(tfm)->fallback_tfm); + if (ctx(tfm)->data && ctx(tfm)->used) { + struct scatterlist sg; + + sg_set_buf(&sg, ctx(tfm)->data, ctx(tfm)->used); + crypto_digest_update(ctx(tfm)->fallback_tfm, &sg, 1); + } + + ctx(tfm)->used = 0; + ctx(tfm)->bypass = 1; +} + +static void padlock_sha_init(struct crypto_tfm *tfm) +{ + ctx(tfm)->used = 0; + ctx(tfm)->bypass = 0; +} + +static void padlock_sha_update(struct crypto_tfm *tfm, + const uint8_t *data, unsigned int length) +{ + /* Our buffer is always one page. */ + if (unlikely(!ctx(tfm)->bypass && + (ctx(tfm)->used + length > PAGE_SIZE))) + padlock_sha_bypass(tfm); + + if (unlikely(ctx(tfm)->bypass)) { + struct scatterlist sg; + BUG_ON(!ctx(tfm)->fallback_tfm); + sg_set_buf(&sg, (uint8_t *)data, length); + crypto_digest_update(ctx(tfm)->fallback_tfm, &sg, 1); + return; + } + + memcpy(ctx(tfm)->data + ctx(tfm)->used, data, length); + ctx(tfm)->used += length; +} + +static inline void padlock_output_block(uint32_t *src, + uint32_t *dst, size_t count) +{ + while (count--) + *dst++ = swab32(*src++); +} + +void padlock_do_sha1(const char *in, char *out, int count) +{ + /* We can't store directly to *out as it may be unaligned. */ + /* BTW Don't reduce the buffer size below 128 Bytes! + * PadLock microcode needs it that big. */ + char buf[128+16]; + char *result = NEAREST_ALIGNED(buf); + + ((uint32_t *)result)[0] = 0x67452301; + ((uint32_t *)result)[1] = 0xEFCDAB89; + ((uint32_t *)result)[2] = 0x98BADCFE; + ((uint32_t *)result)[3] = 0x10325476; + ((uint32_t *)result)[4] = 0xC3D2E1F0; + + asm volatile (".byte 0xf3,0x0f,0xa6,0xc8" /* rep xsha1 */ + : "+S"(in), "+D"(result) + : "c"(count), "a"(0)); + + padlock_output_block((uint32_t *)result, (uint32_t *)out, 5); +} + +void padlock_do_sha256(const char *in, char *out, int count) +{ + /* We can't store directly to *out as it may be unaligned. */ + /* BTW Don't reduce the buffer size below 128 Bytes! + * PadLock microcode needs it that big. */ + char buf[128+16]; + char *result = NEAREST_ALIGNED(buf); + + ((uint32_t *)result)[0] = 0x6A09E667; + ((uint32_t *)result)[1] = 0xBB67AE85; + ((uint32_t *)result)[2] = 0x3C6EF372; + ((uint32_t *)result)[3] = 0xA54FF53A; + ((uint32_t *)result)[4] = 0x510E527F; + ((uint32_t *)result)[5] = 0x9B05688C; + ((uint32_t *)result)[6] = 0x1F83D9AB; + ((uint32_t *)result)[7] = 0x5BE0CD19; + + asm volatile (".byte 0xf3,0x0f,0xa6,0xd0" /* rep xsha256 */ + : "+S"(in), "+D"(result) + : "c"(count), "a"(0)); + + padlock_output_block((uint32_t *)result, (uint32_t *)out, 8); +} + +static void padlock_sha_final(struct crypto_tfm *tfm, uint8_t *out) +{ + if (unlikely(ctx(tfm)->bypass)) { + BUG_ON(!ctx(tfm)->fallback_tfm); + crypto_digest_final(ctx(tfm)->fallback_tfm, out); + ctx(tfm)->bypass = 0; + return; + } + + /* Pass the input buffer to PadLock microcode... */ + ctx(tfm)->f_sha_padlock(ctx(tfm)->data, out, ctx(tfm)->used); + + ctx(tfm)->used = 0; +} + +static int padlock_cra_init(struct crypto_tfm *tfm, const char *fallback_driver_name) +{ + /* For now we'll allocate one page. This + * could eventually be configurable one day. */ + ctx(tfm)->data = (char *)__get_free_page(GFP_KERNEL); + if (!ctx(tfm)->data) + return -ENOMEM; + + /* Allocate a fallback and abort if it failed. */ + ctx(tfm)->fallback_tfm = crypto_alloc_tfm(fallback_driver_name, 0); + if (!ctx(tfm)->fallback_tfm) { + printk(KERN_WARNING PFX "Fallback driver '%s' could not be loaded!\n", + fallback_driver_name); + free_page((unsigned long)(ctx(tfm)->data)); + return -ENOENT; + } + + return 0; +} + +static int padlock_sha1_cra_init(struct crypto_tfm *tfm) +{ + ctx(tfm)->f_sha_padlock = padlock_do_sha1; + + return padlock_cra_init(tfm, sha1_fallback); +} + +static int padlock_sha256_cra_init(struct crypto_tfm *tfm) +{ + ctx(tfm)->f_sha_padlock = padlock_do_sha256; + + return padlock_cra_init(tfm, sha256_fallback); +} + +static void padlock_cra_exit(struct crypto_tfm *tfm) +{ + if (ctx(tfm)->data) { + free_page((unsigned long)(ctx(tfm)->data)); + ctx(tfm)->data = NULL; + } + + BUG_ON(!ctx(tfm)->fallback_tfm); + crypto_free_tfm(ctx(tfm)->fallback_tfm); + ctx(tfm)->fallback_tfm = NULL; +} + +static struct crypto_alg sha1_alg = { + .cra_name = "sha1", + .cra_driver_name = "sha1-padlock", + .cra_priority = PADLOCK_CRA_PRIORITY, + .cra_flags = CRYPTO_ALG_TYPE_DIGEST, + .cra_blocksize = SHA1_HMAC_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct padlock_sha_ctx), + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(sha1_alg.cra_list), + .cra_init = padlock_sha1_cra_init, + .cra_exit = padlock_cra_exit, + .cra_u = { + .digest = { + .dia_digestsize = SHA1_DIGEST_SIZE, + .dia_init = padlock_sha_init, + .dia_update = padlock_sha_update, + .dia_final = padlock_sha_final, + } + } +}; + +static struct crypto_alg sha256_alg = { + .cra_name = "sha256", + .cra_driver_name = "sha256-padlock", + .cra_priority = PADLOCK_CRA_PRIORITY, + .cra_flags = CRYPTO_ALG_TYPE_DIGEST, + .cra_blocksize = SHA256_HMAC_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct padlock_sha_ctx), + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(sha256_alg.cra_list), + .cra_init = padlock_sha256_cra_init, + .cra_exit = padlock_cra_exit, + .cra_u = { + .digest = { + .dia_digestsize = SHA256_DIGEST_SIZE, + .dia_init = padlock_sha_init, + .dia_update = padlock_sha_update, + .dia_final = padlock_sha_final, + } + } +}; + +static void __init padlock_sha_check_fallbacks(void) +{ + static struct crypto_tfm *tfm_sha1, *tfm_sha256; + + /* We'll try to allocate one TFM for each fallback + * to test that the modules are available. */ + tfm_sha1 = crypto_alloc_tfm(sha1_fallback, 0); + if (!tfm_sha1) { + printk(KERN_WARNING PFX "Couldn't load fallback module for '%s'. Tried '%s'.\n", + sha1_alg.cra_name, sha1_fallback); + } else { + printk(KERN_NOTICE PFX "Fallback for '%s' is driver '%s' (prio=%d)\n", sha1_alg.cra_name, + crypto_tfm_alg_driver_name(tfm_sha1), crypto_tfm_alg_priority(tfm_sha1)); + crypto_free_tfm(tfm_sha1); + } + + tfm_sha256 = crypto_alloc_tfm(sha256_fallback, 0); + if (!tfm_sha256) { + printk(KERN_WARNING PFX "Couldn't load fallback module for '%s'. Tried '%s'.\n", + sha256_alg.cra_name, sha256_fallback); + } else { + printk(KERN_NOTICE PFX "Fallback for '%s' is driver '%s' (prio=%d)\n", sha256_alg.cra_name, + crypto_tfm_alg_driver_name(tfm_sha256), crypto_tfm_alg_priority(tfm_sha256)); + crypto_free_tfm(tfm_sha256); + } +} + +static int __init padlock_init(void) +{ + int rc = -ENODEV; + + if (!cpu_has_phe) { + printk(KERN_ERR PFX "VIA PadLock Hash Engine not detected.\n"); + return -ENODEV; + } + + if (!cpu_has_phe_enabled) { + printk(KERN_ERR PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n"); + return -ENODEV; + } + + padlock_sha_check_fallbacks(); + + rc = crypto_register_alg(&sha1_alg); + if (rc) + goto out; + + rc = crypto_register_alg(&sha256_alg); + if (rc) + goto out_unreg1; + + printk(KERN_NOTICE PFX "Using VIA PadLock ACE for SHA1/SHA256 algorithms.\n"); + + return 0; + +out_unreg1: + crypto_unregister_alg(&sha1_alg); +out: + printk(KERN_ERR PFX "VIA PadLock SHA1/SHA256 initialization failed.\n"); + return rc; +} + +static void __exit padlock_fini(void) +{ + crypto_unregister_alg(&sha1_alg); + crypto_unregister_alg(&sha256_alg); +} + +module_init(padlock_init); +module_exit(padlock_fini); + +MODULE_DESCRIPTION("VIA PadLock SHA1/SHA256 algorithms support."); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Michal Ludvig"); + +MODULE_ALIAS("sha1-padlock"); +MODULE_ALIAS("sha256-padlock"); -- cgit v1.2.3-70-g09d2 From cb17530b0a4e01bd595a7ac437467a1a9833a15c Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sat, 15 Jul 2006 11:31:25 +1000 Subject: [CRYPTO] padlock-sha: Make 2 functions static This patch makes two needlessly global functions static. Signed-off-by: Adrian Bunk Signed-off-by: Herbert Xu --- drivers/crypto/padlock-sha.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/padlock-sha.c b/drivers/crypto/padlock-sha.c index f7010038033..95e9971d1a7 100644 --- a/drivers/crypto/padlock-sha.c +++ b/drivers/crypto/padlock-sha.c @@ -112,7 +112,7 @@ static inline void padlock_output_block(uint32_t *src, *dst++ = swab32(*src++); } -void padlock_do_sha1(const char *in, char *out, int count) +static void padlock_do_sha1(const char *in, char *out, int count) { /* We can't store directly to *out as it may be unaligned. */ /* BTW Don't reduce the buffer size below 128 Bytes! @@ -133,7 +133,7 @@ void padlock_do_sha1(const char *in, char *out, int count) padlock_output_block((uint32_t *)result, (uint32_t *)out, 5); } -void padlock_do_sha256(const char *in, char *out, int count) +static void padlock_do_sha256(const char *in, char *out, int count) { /* We can't store directly to *out as it may be unaligned. */ /* BTW Don't reduce the buffer size below 128 Bytes! -- cgit v1.2.3-70-g09d2 From 5644bda5d6aa17a70b8842eb56365d501a5da159 Mon Sep 17 00:00:00 2001 From: Michal Ludvig Date: Sun, 6 Aug 2006 22:50:30 +1000 Subject: [CRYPTO] padlock: Helper module padlock.ko Compile a helper module padlock.ko that will try to autoload all configured padlock algorithms. This also provides backward compatibility with the ancient times before padlock.ko was renamed to padlock-aes.ko Signed-off-by: Michal Ludvig Signed-off-by: Herbert Xu --- drivers/crypto/Kconfig | 17 ++++++++++--- drivers/crypto/Makefile | 1 + drivers/crypto/padlock-aes.c | 3 --- drivers/crypto/padlock.c | 58 ++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 72 insertions(+), 7 deletions(-) create mode 100644 drivers/crypto/padlock.c (limited to 'drivers') diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index 910c715325b..86c99cd333f 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -1,10 +1,10 @@ menu "Hardware crypto devices" config CRYPTO_DEV_PADLOCK - bool "Support for VIA PadLock ACE" + tristate "Support for VIA PadLock ACE" depends on X86_32 select CRYPTO_ALGAPI - default y + default m help Some VIA processors come with an integrated crypto engine (so called VIA PadLock ACE, Advanced Cryptography Engine) @@ -12,8 +12,17 @@ config CRYPTO_DEV_PADLOCK operations with supported algorithms. The instructions are used only when the CPU supports them. - Otherwise software encryption is used. If you are unsure, - say Y. + Otherwise software encryption is used. + + Selecting M for this option will compile a helper module + padlock.ko that should autoload all below configured + algorithms. Don't worry if your hardware does not support + some or all of them. In such case padlock.ko will + simply write a single line into the kernel log informing + about its failure but everything will keep working fine. + + If you are unsure, say M. The compiled module will be + called padlock.ko config CRYPTO_DEV_PADLOCK_AES tristate "PadLock driver for AES algorithm" diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile index df498c7d97a..4c3d0ec1cf8 100644 --- a/drivers/crypto/Makefile +++ b/drivers/crypto/Makefile @@ -1,2 +1,3 @@ +obj-$(CONFIG_CRYPTO_DEV_PADLOCK) += padlock.o obj-$(CONFIG_CRYPTO_DEV_PADLOCK_AES) += padlock-aes.o obj-$(CONFIG_CRYPTO_DEV_PADLOCK_SHA) += padlock-sha.o diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c index 149e54b0ea2..3a2a71108d3 100644 --- a/drivers/crypto/padlock-aes.c +++ b/drivers/crypto/padlock-aes.c @@ -544,6 +544,3 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Michal Ludvig"); MODULE_ALIAS("aes-padlock"); - -/* This module used to be called padlock. */ -MODULE_ALIAS("padlock"); diff --git a/drivers/crypto/padlock.c b/drivers/crypto/padlock.c new file mode 100644 index 00000000000..ce581684f4b --- /dev/null +++ b/drivers/crypto/padlock.c @@ -0,0 +1,58 @@ +/* + * Cryptographic API. + * + * Support for VIA PadLock hardware crypto engine. + * + * Copyright (c) 2006 Michal Ludvig + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "padlock.h" + +static int __init padlock_init(void) +{ + int success = 0; + + if (crypto_alg_available("aes-padlock", 0)) + success++; + + if (crypto_alg_available("sha1-padlock", 0)) + success++; + + if (crypto_alg_available("sha256-padlock", 0)) + success++; + + if (!success) { + printk(KERN_WARNING PFX "No VIA PadLock drivers have been loaded.\n"); + return -ENODEV; + } + + printk(KERN_NOTICE PFX "%d drivers are available.\n", success); + + return 0; +} + +static void __exit padlock_fini(void) +{ +} + +module_init(padlock_init); +module_exit(padlock_fini); + +MODULE_DESCRIPTION("Load all configured PadLock algorithms."); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Michal Ludvig"); + -- cgit v1.2.3-70-g09d2 From 58ec4152895b96f047dcf5e490ee49b4c574dec3 Mon Sep 17 00:00:00 2001 From: Michal Ludvig Date: Mon, 17 Jul 2006 08:14:58 +1000 Subject: [CRYPTO] padlock-sha: TFMs don't need to be static TFMs are local variables. No need to declare them static. After all one is enough. Signed-off-by: Michal Ludvig Signed-off-by: Herbert Xu --- drivers/crypto/padlock-sha.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/padlock-sha.c b/drivers/crypto/padlock-sha.c index 95e9971d1a7..b028db61c30 100644 --- a/drivers/crypto/padlock-sha.c +++ b/drivers/crypto/padlock-sha.c @@ -262,28 +262,28 @@ static struct crypto_alg sha256_alg = { static void __init padlock_sha_check_fallbacks(void) { - static struct crypto_tfm *tfm_sha1, *tfm_sha256; + struct crypto_tfm *tfm; /* We'll try to allocate one TFM for each fallback * to test that the modules are available. */ - tfm_sha1 = crypto_alloc_tfm(sha1_fallback, 0); - if (!tfm_sha1) { + tfm = crypto_alloc_tfm(sha1_fallback, 0); + if (!tfm) { printk(KERN_WARNING PFX "Couldn't load fallback module for '%s'. Tried '%s'.\n", sha1_alg.cra_name, sha1_fallback); } else { printk(KERN_NOTICE PFX "Fallback for '%s' is driver '%s' (prio=%d)\n", sha1_alg.cra_name, - crypto_tfm_alg_driver_name(tfm_sha1), crypto_tfm_alg_priority(tfm_sha1)); - crypto_free_tfm(tfm_sha1); + crypto_tfm_alg_driver_name(tfm), crypto_tfm_alg_priority(tfm)); + crypto_free_tfm(tfm); } - tfm_sha256 = crypto_alloc_tfm(sha256_fallback, 0); - if (!tfm_sha256) { + tfm = crypto_alloc_tfm(sha256_fallback, 0); + if (!tfm) { printk(KERN_WARNING PFX "Couldn't load fallback module for '%s'. Tried '%s'.\n", sha256_alg.cra_name, sha256_fallback); } else { printk(KERN_NOTICE PFX "Fallback for '%s' is driver '%s' (prio=%d)\n", sha256_alg.cra_name, - crypto_tfm_alg_driver_name(tfm_sha256), crypto_tfm_alg_priority(tfm_sha256)); - crypto_free_tfm(tfm_sha256); + crypto_tfm_alg_driver_name(tfm), crypto_tfm_alg_priority(tfm)); + crypto_free_tfm(tfm); } } -- cgit v1.2.3-70-g09d2 From 560c06ae1ab7c677002ea3b6ac83521bf12ee07d Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sun, 13 Aug 2006 14:16:39 +1000 Subject: [CRYPTO] api: Get rid of flags argument to setkey Now that the tfm is passed directly to setkey instead of the ctx, we no longer need to pass the &tfm->crt_flags pointer. This patch also gets rid of a few unnecessary checks on the key length for ciphers as the cipher layer guarantees that the key length is within the bounds specified by the algorithm. Rather than testing dia_setkey every time, this patch does it only once during crypto_alloc_tfm. The redundant check from crypto_digest_setkey is also removed. Signed-off-by: Herbert Xu --- arch/i386/crypto/aes.c | 3 ++- arch/s390/crypto/aes_s390.c | 3 ++- arch/s390/crypto/des_s390.c | 13 ++++++++----- arch/x86_64/crypto/aes.c | 5 +++-- crypto/aes.c | 5 +++-- crypto/anubis.c | 3 ++- crypto/arc4.c | 2 +- crypto/blowfish.c | 3 +-- crypto/cast5.c | 8 +------- crypto/cast6.c | 5 +++-- crypto/cipher.c | 4 ++-- crypto/crc32c.c | 5 ++--- crypto/crypto_null.c | 2 +- crypto/des.c | 6 ++++-- crypto/digest.c | 15 ++++++++++----- crypto/khazad.c | 8 +------- crypto/michael_mic.c | 5 ++--- crypto/serpent.c | 19 +++---------------- crypto/tcrypt.c | 5 +---- crypto/tea.c | 16 ++-------------- crypto/twofish_common.c | 6 +++--- drivers/crypto/padlock-aes.c | 5 +++-- include/crypto/twofish.h | 3 +-- include/linux/crypto.h | 6 ++---- 24 files changed, 63 insertions(+), 92 deletions(-) (limited to 'drivers') diff --git a/arch/i386/crypto/aes.c b/arch/i386/crypto/aes.c index d3806daa3de..49aad9397f1 100644 --- a/arch/i386/crypto/aes.c +++ b/arch/i386/crypto/aes.c @@ -379,12 +379,13 @@ static void gen_tabs(void) } static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, - unsigned int key_len, u32 *flags) + unsigned int key_len) { int i; u32 ss[8]; struct aes_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *key = (const __le32 *)in_key; + u32 *flags = &tfm->crt_flags; /* encryption schedule */ diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index 5713c7e5bd1..c7c43c9de0d 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -38,9 +38,10 @@ struct s390_aes_ctx { }; static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, - unsigned int key_len, u32 *flags) + unsigned int key_len) { struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm); + u32 *flags = &tfm->crt_flags; switch (key_len) { case 16: diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c index b3f7496a79b..170757b3451 100644 --- a/arch/s390/crypto/des_s390.c +++ b/arch/s390/crypto/des_s390.c @@ -45,9 +45,10 @@ struct crypt_s390_des3_192_ctx { }; static int des_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags) + unsigned int keylen) { struct crypt_s390_des_ctx *dctx = crypto_tfm_ctx(tfm); + u32 *flags = &tfm->crt_flags; int ret; /* test if key is valid (not a weak key) */ @@ -167,11 +168,12 @@ static struct crypto_alg des_alg = { * */ static int des3_128_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags) + unsigned int keylen) { int i, ret; struct crypt_s390_des3_128_ctx *dctx = crypto_tfm_ctx(tfm); - const u8* temp_key = key; + const u8 *temp_key = key; + u32 *flags = &tfm->crt_flags; if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE))) { *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED; @@ -303,11 +305,12 @@ static struct crypto_alg des3_128_alg = { * */ static int des3_192_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags) + unsigned int keylen) { int i, ret; struct crypt_s390_des3_192_ctx *dctx = crypto_tfm_ctx(tfm); - const u8* temp_key = key; + const u8 *temp_key = key; + u32 *flags = &tfm->crt_flags; if (!(memcmp(key, &key[DES_KEY_SIZE], DES_KEY_SIZE) && memcmp(&key[DES_KEY_SIZE], &key[DES_KEY_SIZE * 2], diff --git a/arch/x86_64/crypto/aes.c b/arch/x86_64/crypto/aes.c index 68866fab37a..5cdb13ea5cc 100644 --- a/arch/x86_64/crypto/aes.c +++ b/arch/x86_64/crypto/aes.c @@ -228,13 +228,14 @@ static void __init gen_tabs(void) } static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, - unsigned int key_len, u32 *flags) + unsigned int key_len) { struct aes_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *key = (const __le32 *)in_key; + u32 *flags = &tfm->crt_flags; u32 i, j, t, u, v, w; - if (key_len != 16 && key_len != 24 && key_len != 32) { + if (key_len % 8) { *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; return -EINVAL; } diff --git a/crypto/aes.c b/crypto/aes.c index a038711831e..e2440773878 100644 --- a/crypto/aes.c +++ b/crypto/aes.c @@ -249,13 +249,14 @@ gen_tabs (void) } static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, - unsigned int key_len, u32 *flags) + unsigned int key_len) { struct aes_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *key = (const __le32 *)in_key; + u32 *flags = &tfm->crt_flags; u32 i, t, u, v, w; - if (key_len != 16 && key_len != 24 && key_len != 32) { + if (key_len % 8) { *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; return -EINVAL; } diff --git a/crypto/anubis.c b/crypto/anubis.c index 7e2e1a29800..1c771f7f4dc 100644 --- a/crypto/anubis.c +++ b/crypto/anubis.c @@ -461,10 +461,11 @@ static const u32 rc[] = { }; static int anubis_setkey(struct crypto_tfm *tfm, const u8 *in_key, - unsigned int key_len, u32 *flags) + unsigned int key_len) { struct anubis_ctx *ctx = crypto_tfm_ctx(tfm); const __be32 *key = (const __be32 *)in_key; + u32 *flags = &tfm->crt_flags; int N, R, i, r; u32 kappa[ANUBIS_MAX_N]; u32 inter[ANUBIS_MAX_N]; diff --git a/crypto/arc4.c b/crypto/arc4.c index 5edc6a65b98..8be47e13a9e 100644 --- a/crypto/arc4.c +++ b/crypto/arc4.c @@ -25,7 +25,7 @@ struct arc4_ctx { }; static int arc4_set_key(struct crypto_tfm *tfm, const u8 *in_key, - unsigned int key_len, u32 *flags) + unsigned int key_len) { struct arc4_ctx *ctx = crypto_tfm_ctx(tfm); int i, j = 0, k = 0; diff --git a/crypto/blowfish.c b/crypto/blowfish.c index 490265f42b3..55238c4e37f 100644 --- a/crypto/blowfish.c +++ b/crypto/blowfish.c @@ -399,8 +399,7 @@ static void bf_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) /* * Calculates the blowfish S and P boxes for encryption and decryption. */ -static int bf_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags) +static int bf_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) { struct bf_ctx *ctx = crypto_tfm_ctx(tfm); u32 *P = ctx->p; diff --git a/crypto/cast5.c b/crypto/cast5.c index 08eef58c1d3..13ea60abc19 100644 --- a/crypto/cast5.c +++ b/crypto/cast5.c @@ -769,8 +769,7 @@ static void key_schedule(u32 * x, u32 * z, u32 * k) } -static int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned key_len, u32 *flags) +static int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned key_len) { struct cast5_ctx *c = crypto_tfm_ctx(tfm); int i; @@ -778,11 +777,6 @@ static int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, u32 z[4]; u32 k[16]; __be32 p_key[4]; - - if (key_len < 5 || key_len > 16) { - *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; - return -EINVAL; - } c->rr = key_len <= 10 ? 1 : 0; diff --git a/crypto/cast6.c b/crypto/cast6.c index 08e33bfc3ad..136ab6dfe8c 100644 --- a/crypto/cast6.c +++ b/crypto/cast6.c @@ -382,14 +382,15 @@ static inline void W(u32 *key, unsigned int i) { } static int cast6_setkey(struct crypto_tfm *tfm, const u8 *in_key, - unsigned key_len, u32 *flags) + unsigned key_len) { int i; u32 key[8]; __be32 p_key[8]; /* padded key */ struct cast6_ctx *c = crypto_tfm_ctx(tfm); + u32 *flags = &tfm->crt_flags; - if (key_len < 16 || key_len > 32 || key_len % 4 != 0) { + if (key_len % 4 != 0) { *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; return -EINVAL; } diff --git a/crypto/cipher.c b/crypto/cipher.c index b899eb97abd..56406a4a88d 100644 --- a/crypto/cipher.c +++ b/crypto/cipher.c @@ -264,12 +264,12 @@ static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) { struct cipher_alg *cia = &tfm->__crt_alg->cra_cipher; + tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK; if (keylen < cia->cia_min_keysize || keylen > cia->cia_max_keysize) { tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; return -EINVAL; } else - return cia->cia_setkey(tfm, key, keylen, - &tfm->crt_flags); + return cia->cia_setkey(tfm, key, keylen); } static int ecb_encrypt(struct crypto_tfm *tfm, diff --git a/crypto/crc32c.c b/crypto/crc32c.c index 91ecd895e95..0fa744392a4 100644 --- a/crypto/crc32c.c +++ b/crypto/crc32c.c @@ -44,13 +44,12 @@ static void chksum_init(struct crypto_tfm *tfm) * the seed. */ static int chksum_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags) + unsigned int keylen) { struct chksum_ctx *mctx = crypto_tfm_ctx(tfm); if (keylen != sizeof(mctx->crc)) { - if (flags) - *flags = CRYPTO_TFM_RES_BAD_KEY_LEN; + tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; return -EINVAL; } mctx->key = le32_to_cpu(*(__le32 *)key); diff --git a/crypto/crypto_null.c b/crypto/crypto_null.c index a0d956b5294..24dbb5d8617 100644 --- a/crypto/crypto_null.c +++ b/crypto/crypto_null.c @@ -48,7 +48,7 @@ static void null_final(struct crypto_tfm *tfm, u8 *out) { } static int null_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags) + unsigned int keylen) { return 0; } static void null_crypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) diff --git a/crypto/des.c b/crypto/des.c index a9d3c235a6a..1df3a714fa4 100644 --- a/crypto/des.c +++ b/crypto/des.c @@ -784,9 +784,10 @@ static void dkey(u32 *pe, const u8 *k) } static int des_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags) + unsigned int keylen) { struct des_ctx *dctx = crypto_tfm_ctx(tfm); + u32 *flags = &tfm->crt_flags; u32 tmp[DES_EXPKEY_WORDS]; int ret; @@ -864,11 +865,12 @@ static void des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) * */ static int des3_ede_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags) + unsigned int keylen) { const u32 *K = (const u32 *)key; struct des3_ede_ctx *dctx = crypto_tfm_ctx(tfm); u32 *expkey = dctx->expkey; + u32 *flags = &tfm->crt_flags; if (unlikely(!((K[0] ^ K[2]) | (K[1] ^ K[3])) || !((K[2] ^ K[4]) | (K[3] ^ K[5])))) diff --git a/crypto/digest.c b/crypto/digest.c index 603006a7bef..0df7f392a56 100644 --- a/crypto/digest.c +++ b/crypto/digest.c @@ -76,12 +76,16 @@ static void final(struct crypto_tfm *tfm, u8 *out) tfm->__crt_alg->cra_digest.dia_final(tfm, out); } +static int nosetkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) +{ + tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK; + return -ENOSYS; +} + static int setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) { - u32 flags; - if (tfm->__crt_alg->cra_digest.dia_setkey == NULL) - return -ENOSYS; - return tfm->__crt_alg->cra_digest.dia_setkey(tfm, key, keylen, &flags); + tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK; + return tfm->__crt_alg->cra_digest.dia_setkey(tfm, key, keylen); } static void digest(struct crypto_tfm *tfm, @@ -100,12 +104,13 @@ int crypto_init_digest_flags(struct crypto_tfm *tfm, u32 flags) int crypto_init_digest_ops(struct crypto_tfm *tfm) { struct digest_tfm *ops = &tfm->crt_digest; + struct digest_alg *dalg = &tfm->__crt_alg->cra_digest; ops->dit_init = init; ops->dit_update = update; ops->dit_final = final; ops->dit_digest = digest; - ops->dit_setkey = setkey; + ops->dit_setkey = dalg->dia_setkey ? setkey : nosetkey; return crypto_alloc_hmac_block(tfm); } diff --git a/crypto/khazad.c b/crypto/khazad.c index d4c9d3657b3..9fa24a2dd6f 100644 --- a/crypto/khazad.c +++ b/crypto/khazad.c @@ -755,19 +755,13 @@ static const u64 c[KHAZAD_ROUNDS + 1] = { }; static int khazad_setkey(struct crypto_tfm *tfm, const u8 *in_key, - unsigned int key_len, u32 *flags) + unsigned int key_len) { struct khazad_ctx *ctx = crypto_tfm_ctx(tfm); const __be32 *key = (const __be32 *)in_key; int r; const u64 *S = T7; u64 K2, K1; - - if (key_len != 16) - { - *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; - return -EINVAL; - } /* key is supposed to be 32-bit aligned */ K2 = ((u64)be32_to_cpu(key[0]) << 32) | be32_to_cpu(key[1]); diff --git a/crypto/michael_mic.c b/crypto/michael_mic.c index d061da21cfd..094397b4884 100644 --- a/crypto/michael_mic.c +++ b/crypto/michael_mic.c @@ -123,14 +123,13 @@ static void michael_final(struct crypto_tfm *tfm, u8 *out) static int michael_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags) + unsigned int keylen) { struct michael_mic_ctx *mctx = crypto_tfm_ctx(tfm); const __le32 *data = (const __le32 *)key; if (keylen != 8) { - if (flags) - *flags = CRYPTO_TFM_RES_BAD_KEY_LEN; + tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; return -EINVAL; } diff --git a/crypto/serpent.c b/crypto/serpent.c index de60cdddbf4..465d091cd3e 100644 --- a/crypto/serpent.c +++ b/crypto/serpent.c @@ -216,7 +216,7 @@ struct serpent_ctx { static int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags) + unsigned int keylen) { struct serpent_ctx *ctx = crypto_tfm_ctx(tfm); u32 *k = ctx->expkey; @@ -224,13 +224,6 @@ static int serpent_setkey(struct crypto_tfm *tfm, const u8 *key, u32 r0,r1,r2,r3,r4; int i; - if ((keylen < SERPENT_MIN_KEY_SIZE) - || (keylen > SERPENT_MAX_KEY_SIZE)) - { - *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; - return -EINVAL; - } - /* Copy key, add padding */ for (i = 0; i < keylen; ++i) @@ -497,21 +490,15 @@ static struct crypto_alg serpent_alg = { }; static int tnepres_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags) + unsigned int keylen) { u8 rev_key[SERPENT_MAX_KEY_SIZE]; int i; - if ((keylen < SERPENT_MIN_KEY_SIZE) - || (keylen > SERPENT_MAX_KEY_SIZE)) { - *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; - return -EINVAL; - } - for (i = 0; i < keylen; ++i) rev_key[keylen - i - 1] = key[i]; - return serpent_setkey(tfm, rev_key, keylen, flags); + return serpent_setkey(tfm, rev_key, keylen); } static void tnepres_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index bed225e8323..60677707467 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -118,10 +118,7 @@ static void test_hash(char *algo, struct hash_testvec *template, sg_set_buf(&sg[0], hash_tv[i].plaintext, hash_tv[i].psize); crypto_digest_init(tfm); - if (tfm->crt_u.digest.dit_setkey) { - crypto_digest_setkey(tfm, hash_tv[i].key, - hash_tv[i].ksize); - } + crypto_digest_setkey(tfm, hash_tv[i].key, hash_tv[i].ksize); crypto_digest_update(tfm, sg, 1); crypto_digest_final(tfm, result); diff --git a/crypto/tea.c b/crypto/tea.c index 5367adc82fc..1c54e26fa52 100644 --- a/crypto/tea.c +++ b/crypto/tea.c @@ -46,16 +46,10 @@ struct xtea_ctx { }; static int tea_setkey(struct crypto_tfm *tfm, const u8 *in_key, - unsigned int key_len, u32 *flags) + unsigned int key_len) { struct tea_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *key = (const __le32 *)in_key; - - if (key_len != 16) - { - *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; - return -EINVAL; - } ctx->KEY[0] = le32_to_cpu(key[0]); ctx->KEY[1] = le32_to_cpu(key[1]); @@ -125,16 +119,10 @@ static void tea_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) } static int xtea_setkey(struct crypto_tfm *tfm, const u8 *in_key, - unsigned int key_len, u32 *flags) + unsigned int key_len) { struct xtea_ctx *ctx = crypto_tfm_ctx(tfm); const __le32 *key = (const __le32 *)in_key; - - if (key_len != 16) - { - *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; - return -EINVAL; - } ctx->KEY[0] = le32_to_cpu(key[0]); ctx->KEY[1] = le32_to_cpu(key[1]); diff --git a/crypto/twofish_common.c b/crypto/twofish_common.c index 1ae0280c251..b4b9c0c3f4a 100644 --- a/crypto/twofish_common.c +++ b/crypto/twofish_common.c @@ -580,11 +580,11 @@ static const u8 calc_sb_tbl[512] = { ctx->a[(j) + 1] = rol32(y, 9) /* Perform the key setup. */ -int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int key_len, u32 *flags) +int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len) { struct twofish_ctx *ctx = crypto_tfm_ctx(tfm); + u32 *flags = &tfm->crt_flags; int i, j, k; @@ -600,7 +600,7 @@ int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, u8 tmp; /* Check key length. */ - if (key_len != 16 && key_len != 24 && key_len != 32) + if (key_len % 8) { *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; return -EINVAL; /* unsupported key length */ diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c index 3a2a71108d3..3e683709243 100644 --- a/drivers/crypto/padlock-aes.c +++ b/drivers/crypto/padlock-aes.c @@ -308,15 +308,16 @@ static inline struct aes_ctx *aes_ctx(struct crypto_tfm *tfm) } static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, - unsigned int key_len, u32 *flags) + unsigned int key_len) { struct aes_ctx *ctx = aes_ctx(tfm); const __le32 *key = (const __le32 *)in_key; + u32 *flags = &tfm->crt_flags; uint32_t i, t, u, v, w; uint32_t P[AES_EXTENDED_KEY_SIZE]; uint32_t rounds; - if (key_len != 16 && key_len != 24 && key_len != 32) { + if (key_len % 8) { *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; return -EINVAL; } diff --git a/include/crypto/twofish.h b/include/crypto/twofish.h index e4328cfaaf6..c408522595c 100644 --- a/include/crypto/twofish.h +++ b/include/crypto/twofish.h @@ -17,7 +17,6 @@ struct twofish_ctx { u32 s[4][256], w[8], k[32]; }; -int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int key_len, u32 *flags); +int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len); #endif diff --git a/include/linux/crypto.h b/include/linux/crypto.h index d6e184c876b..053bfab43e8 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -106,7 +106,7 @@ struct cipher_alg { unsigned int cia_min_keysize; unsigned int cia_max_keysize; int (*cia_setkey)(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags); + unsigned int keylen); void (*cia_encrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); @@ -131,7 +131,7 @@ struct digest_alg { unsigned int len); void (*dia_final)(struct crypto_tfm *tfm, u8 *out); int (*dia_setkey)(struct crypto_tfm *tfm, const u8 *key, - unsigned int keylen, u32 *flags); + unsigned int keylen); }; struct compress_alg { @@ -397,8 +397,6 @@ static inline int crypto_digest_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) { BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST); - if (tfm->crt_digest.dit_setkey == NULL) - return -ENOSYS; return tfm->crt_digest.dit_setkey(tfm, key, keylen); } -- cgit v1.2.3-70-g09d2 From 28ce728a90cce3a0c6c0ed00354299de52db94b1 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 21 Aug 2006 21:38:42 +1000 Subject: [CRYPTO] padlock: Added block cipher versions of CBC/ECB This patch adds block cipher algorithms for cbc(aes) and ecb(aes) for the PadLock device. Once all users to the old cipher type have been converted the old cbc/ecb PadLock operations will be removed. Signed-off-by: Herbert Xu --- drivers/crypto/Kconfig | 1 + drivers/crypto/padlock-aes.c | 174 +++++++++++++++++++++++++++++++++++++++++-- drivers/crypto/padlock.h | 1 + 3 files changed, 169 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig index 86c99cd333f..adb554153f6 100644 --- a/drivers/crypto/Kconfig +++ b/drivers/crypto/Kconfig @@ -27,6 +27,7 @@ config CRYPTO_DEV_PADLOCK config CRYPTO_DEV_PADLOCK_AES tristate "PadLock driver for AES algorithm" depends on CRYPTO_DEV_PADLOCK + select CRYPTO_BLKCIPHER default m help Use VIA PadLock for AES algorithm. diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c index 3e683709243..f53301e836d 100644 --- a/drivers/crypto/padlock-aes.c +++ b/drivers/crypto/padlock-aes.c @@ -43,11 +43,11 @@ * --------------------------------------------------------------------------- */ +#include #include #include #include #include -#include #include #include #include @@ -297,9 +297,9 @@ aes_hw_extkey_available(uint8_t key_len) return 0; } -static inline struct aes_ctx *aes_ctx(struct crypto_tfm *tfm) +static inline struct aes_ctx *aes_ctx_common(void *ctx) { - unsigned long addr = (unsigned long)crypto_tfm_ctx(tfm); + unsigned long addr = (unsigned long)ctx; unsigned long align = PADLOCK_ALIGNMENT; if (align <= crypto_tfm_ctx_alignment()) @@ -307,6 +307,16 @@ static inline struct aes_ctx *aes_ctx(struct crypto_tfm *tfm) return (struct aes_ctx *)ALIGN(addr, align); } +static inline struct aes_ctx *aes_ctx(struct crypto_tfm *tfm) +{ + return aes_ctx_common(crypto_tfm_ctx(tfm)); +} + +static inline struct aes_ctx *blk_aes_ctx(struct crypto_blkcipher *tfm) +{ + return aes_ctx_common(crypto_blkcipher_ctx(tfm)); +} + static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, unsigned int key_len) { @@ -507,6 +517,141 @@ static struct crypto_alg aes_alg = { } }; +static int ecb_aes_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct aes_ctx *ctx = blk_aes_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + padlock_xcrypt_ecb(walk.src.virt.addr, walk.dst.virt.addr, + ctx->E, &ctx->cword.encrypt, + nbytes / AES_BLOCK_SIZE); + nbytes &= AES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +static int ecb_aes_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct aes_ctx *ctx = blk_aes_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + padlock_xcrypt_ecb(walk.src.virt.addr, walk.dst.virt.addr, + ctx->D, &ctx->cword.decrypt, + nbytes / AES_BLOCK_SIZE); + nbytes &= AES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +static struct crypto_alg ecb_aes_alg = { + .cra_name = "ecb(aes)", + .cra_driver_name = "ecb-aes-padlock", + .cra_priority = PADLOCK_COMPOSITE_PRIORITY, + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct aes_ctx), + .cra_alignmask = PADLOCK_ALIGNMENT - 1, + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(ecb_aes_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .setkey = aes_set_key, + .encrypt = ecb_aes_encrypt, + .decrypt = ecb_aes_decrypt, + } + } +}; + +static int cbc_aes_encrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct aes_ctx *ctx = blk_aes_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + u8 *iv = padlock_xcrypt_cbc(walk.src.virt.addr, + walk.dst.virt.addr, ctx->E, + walk.iv, &ctx->cword.encrypt, + nbytes / AES_BLOCK_SIZE); + memcpy(walk.iv, iv, AES_BLOCK_SIZE); + nbytes &= AES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +static int cbc_aes_decrypt(struct blkcipher_desc *desc, + struct scatterlist *dst, struct scatterlist *src, + unsigned int nbytes) +{ + struct aes_ctx *ctx = blk_aes_ctx(desc->tfm); + struct blkcipher_walk walk; + int err; + + blkcipher_walk_init(&walk, dst, src, nbytes); + err = blkcipher_walk_virt(desc, &walk); + + while ((nbytes = walk.nbytes)) { + padlock_xcrypt_cbc(walk.src.virt.addr, walk.dst.virt.addr, + ctx->D, walk.iv, &ctx->cword.decrypt, + nbytes / AES_BLOCK_SIZE); + nbytes &= AES_BLOCK_SIZE - 1; + err = blkcipher_walk_done(desc, &walk, nbytes); + } + + return err; +} + +static struct crypto_alg cbc_aes_alg = { + .cra_name = "cbc(aes)", + .cra_driver_name = "cbc-aes-padlock", + .cra_priority = PADLOCK_COMPOSITE_PRIORITY, + .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct aes_ctx), + .cra_alignmask = PADLOCK_ALIGNMENT - 1, + .cra_type = &crypto_blkcipher_type, + .cra_module = THIS_MODULE, + .cra_list = LIST_HEAD_INIT(cbc_aes_alg.cra_list), + .cra_u = { + .blkcipher = { + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + .setkey = aes_set_key, + .encrypt = cbc_aes_encrypt, + .decrypt = cbc_aes_decrypt, + } + } +}; + static int __init padlock_init(void) { int ret; @@ -522,18 +667,33 @@ static int __init padlock_init(void) } gen_tabs(); - if ((ret = crypto_register_alg(&aes_alg))) { - printk(KERN_ERR PFX "VIA PadLock AES initialization failed.\n"); - return ret; - } + if ((ret = crypto_register_alg(&aes_alg))) + goto aes_err; + + if ((ret = crypto_register_alg(&ecb_aes_alg))) + goto ecb_aes_err; + + if ((ret = crypto_register_alg(&cbc_aes_alg))) + goto cbc_aes_err; printk(KERN_NOTICE PFX "Using VIA PadLock ACE for AES algorithm.\n"); +out: return ret; + +cbc_aes_err: + crypto_unregister_alg(&ecb_aes_alg); +ecb_aes_err: + crypto_unregister_alg(&aes_alg); +aes_err: + printk(KERN_ERR PFX "VIA PadLock AES initialization failed.\n"); + goto out; } static void __exit padlock_fini(void) { + crypto_unregister_alg(&cbc_aes_alg); + crypto_unregister_alg(&ecb_aes_alg); crypto_unregister_alg(&aes_alg); } diff --git a/drivers/crypto/padlock.h b/drivers/crypto/padlock.h index 7e3385b0904..b728e4518bd 100644 --- a/drivers/crypto/padlock.h +++ b/drivers/crypto/padlock.h @@ -18,5 +18,6 @@ #define PFX "padlock: " #define PADLOCK_CRA_PRIORITY 300 +#define PADLOCK_COMPOSITE_PRIORITY 400 #endif /* _CRYPTO_PADLOCK_H */ -- cgit v1.2.3-70-g09d2 From 69affe7fc52c14e4b81408a2076e9e58ba4af60a Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 21 Sep 2006 11:45:53 +1000 Subject: [BLOCK] cryptoloop: Use block ciphers where applicable This patch converts cryptoloop to use the new block cipher type where applicable. As a result the ECB-specific and CBC-specific transfer functions have been merged. Signed-off-by: Herbert Xu --- drivers/block/cryptoloop.c | 160 +++++++++++++++------------------------------ 1 file changed, 54 insertions(+), 106 deletions(-) (limited to 'drivers') diff --git a/drivers/block/cryptoloop.c b/drivers/block/cryptoloop.c index 3d4261c39f1..40535036e89 100644 --- a/drivers/block/cryptoloop.c +++ b/drivers/block/cryptoloop.c @@ -40,11 +40,13 @@ static int cryptoloop_init(struct loop_device *lo, const struct loop_info64 *info) { int err = -EINVAL; + int cipher_len; + int mode_len; char cms[LO_NAME_SIZE]; /* cipher-mode string */ char *cipher; char *mode; char *cmsp = cms; /* c-m string pointer */ - struct crypto_tfm *tfm = NULL; + struct crypto_blkcipher *tfm; /* encryption breaks for non sector aligned offsets */ @@ -53,20 +55,39 @@ cryptoloop_init(struct loop_device *lo, const struct loop_info64 *info) strncpy(cms, info->lo_crypt_name, LO_NAME_SIZE); cms[LO_NAME_SIZE - 1] = 0; - cipher = strsep(&cmsp, "-"); - mode = strsep(&cmsp, "-"); - - if (mode == NULL || strcmp(mode, "cbc") == 0) - tfm = crypto_alloc_tfm(cipher, CRYPTO_TFM_MODE_CBC | - CRYPTO_TFM_REQ_MAY_SLEEP); - else if (strcmp(mode, "ecb") == 0) - tfm = crypto_alloc_tfm(cipher, CRYPTO_TFM_MODE_ECB | - CRYPTO_TFM_REQ_MAY_SLEEP); - if (tfm == NULL) + + cipher = cmsp; + cipher_len = strcspn(cmsp, "-"); + + mode = cmsp + cipher_len; + mode_len = 0; + if (*mode) { + mode++; + mode_len = strcspn(mode, "-"); + } + + if (!mode_len) { + mode = "cbc"; + mode_len = 3; + } + + if (cipher_len + mode_len + 3 > LO_NAME_SIZE) return -EINVAL; - err = tfm->crt_u.cipher.cit_setkey(tfm, info->lo_encrypt_key, - info->lo_encrypt_key_size); + memmove(cms, mode, mode_len); + cmsp = cms + mode_len; + *cmsp++ = '('; + memcpy(cmsp, info->lo_crypt_name, cipher_len); + cmsp += cipher_len; + *cmsp++ = ')'; + *cmsp = 0; + + tfm = crypto_alloc_blkcipher(cms, 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm)) + return PTR_ERR(tfm); + + err = crypto_blkcipher_setkey(tfm, info->lo_encrypt_key, + info->lo_encrypt_key_size); if (err != 0) goto out_free_tfm; @@ -75,99 +96,49 @@ cryptoloop_init(struct loop_device *lo, const struct loop_info64 *info) return 0; out_free_tfm: - crypto_free_tfm(tfm); + crypto_free_blkcipher(tfm); out: return err; } -typedef int (*encdec_ecb_t)(struct crypto_tfm *tfm, +typedef int (*encdec_cbc_t)(struct blkcipher_desc *desc, struct scatterlist *sg_out, struct scatterlist *sg_in, unsigned int nsg); - -static int -cryptoloop_transfer_ecb(struct loop_device *lo, int cmd, - struct page *raw_page, unsigned raw_off, - struct page *loop_page, unsigned loop_off, - int size, sector_t IV) -{ - struct crypto_tfm *tfm = (struct crypto_tfm *) lo->key_data; - struct scatterlist sg_out = { NULL, }; - struct scatterlist sg_in = { NULL, }; - - encdec_ecb_t encdecfunc; - struct page *in_page, *out_page; - unsigned in_offs, out_offs; - - if (cmd == READ) { - in_page = raw_page; - in_offs = raw_off; - out_page = loop_page; - out_offs = loop_off; - encdecfunc = tfm->crt_u.cipher.cit_decrypt; - } else { - in_page = loop_page; - in_offs = loop_off; - out_page = raw_page; - out_offs = raw_off; - encdecfunc = tfm->crt_u.cipher.cit_encrypt; - } - - while (size > 0) { - const int sz = min(size, LOOP_IV_SECTOR_SIZE); - - sg_in.page = in_page; - sg_in.offset = in_offs; - sg_in.length = sz; - - sg_out.page = out_page; - sg_out.offset = out_offs; - sg_out.length = sz; - - encdecfunc(tfm, &sg_out, &sg_in, sz); - - size -= sz; - in_offs += sz; - out_offs += sz; - } - - return 0; -} - -typedef int (*encdec_cbc_t)(struct crypto_tfm *tfm, - struct scatterlist *sg_out, - struct scatterlist *sg_in, - unsigned int nsg, u8 *iv); - static int -cryptoloop_transfer_cbc(struct loop_device *lo, int cmd, - struct page *raw_page, unsigned raw_off, - struct page *loop_page, unsigned loop_off, - int size, sector_t IV) +cryptoloop_transfer(struct loop_device *lo, int cmd, + struct page *raw_page, unsigned raw_off, + struct page *loop_page, unsigned loop_off, + int size, sector_t IV) { - struct crypto_tfm *tfm = (struct crypto_tfm *) lo->key_data; + struct crypto_blkcipher *tfm = lo->key_data; + struct blkcipher_desc desc = { + .tfm = tfm, + .flags = CRYPTO_TFM_REQ_MAY_SLEEP, + }; struct scatterlist sg_out = { NULL, }; struct scatterlist sg_in = { NULL, }; encdec_cbc_t encdecfunc; struct page *in_page, *out_page; unsigned in_offs, out_offs; + int err; if (cmd == READ) { in_page = raw_page; in_offs = raw_off; out_page = loop_page; out_offs = loop_off; - encdecfunc = tfm->crt_u.cipher.cit_decrypt_iv; + encdecfunc = crypto_blkcipher_crt(tfm)->decrypt; } else { in_page = loop_page; in_offs = loop_off; out_page = raw_page; out_offs = raw_off; - encdecfunc = tfm->crt_u.cipher.cit_encrypt_iv; + encdecfunc = crypto_blkcipher_crt(tfm)->encrypt; } while (size > 0) { @@ -183,7 +154,10 @@ cryptoloop_transfer_cbc(struct loop_device *lo, int cmd, sg_out.offset = out_offs; sg_out.length = sz; - encdecfunc(tfm, &sg_out, &sg_in, sz, (u8 *)iv); + desc.info = iv; + err = encdecfunc(&desc, &sg_out, &sg_in, sz); + if (err) + return err; IV++; size -= sz; @@ -194,32 +168,6 @@ cryptoloop_transfer_cbc(struct loop_device *lo, int cmd, return 0; } -static int -cryptoloop_transfer(struct loop_device *lo, int cmd, - struct page *raw_page, unsigned raw_off, - struct page *loop_page, unsigned loop_off, - int size, sector_t IV) -{ - struct crypto_tfm *tfm = (struct crypto_tfm *) lo->key_data; - if(tfm->crt_cipher.cit_mode == CRYPTO_TFM_MODE_ECB) - { - lo->transfer = cryptoloop_transfer_ecb; - return cryptoloop_transfer_ecb(lo, cmd, raw_page, raw_off, - loop_page, loop_off, size, IV); - } - if(tfm->crt_cipher.cit_mode == CRYPTO_TFM_MODE_CBC) - { - lo->transfer = cryptoloop_transfer_cbc; - return cryptoloop_transfer_cbc(lo, cmd, raw_page, raw_off, - loop_page, loop_off, size, IV); - } - - /* This is not supposed to happen */ - - printk( KERN_ERR "cryptoloop: unsupported cipher mode in cryptoloop_transfer!\n"); - return -EINVAL; -} - static int cryptoloop_ioctl(struct loop_device *lo, int cmd, unsigned long arg) { @@ -229,9 +177,9 @@ cryptoloop_ioctl(struct loop_device *lo, int cmd, unsigned long arg) static int cryptoloop_release(struct loop_device *lo) { - struct crypto_tfm *tfm = (struct crypto_tfm *) lo->key_data; + struct crypto_blkcipher *tfm = lo->key_data; if (tfm != NULL) { - crypto_free_tfm(tfm); + crypto_free_blkcipher(tfm); lo->key_data = NULL; return 0; } -- cgit v1.2.3-70-g09d2 From d1806f6a97a536b043fe50e6d8a25b061755cf50 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Tue, 22 Aug 2006 20:29:17 +1000 Subject: [BLOCK] dm-crypt: Use block ciphers where applicable This patch converts dm-crypt to use the new block cipher type where applicable. It also changes simple cipher operations to use the new encrypt_one/decrypt_one interface. Signed-off-by: Herbert Xu --- drivers/md/dm-crypt.c | 108 ++++++++++++++++++++++---------------------------- 1 file changed, 47 insertions(+), 61 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 6022ed12a79..91d4081cb00 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -5,6 +5,7 @@ * This file is released under the GPL. */ +#include #include #include #include @@ -78,11 +79,13 @@ struct crypt_config { */ struct crypt_iv_operations *iv_gen_ops; char *iv_mode; - void *iv_gen_private; + struct crypto_cipher *iv_gen_private; sector_t iv_offset; unsigned int iv_size; - struct crypto_tfm *tfm; + char cipher[CRYPTO_MAX_ALG_NAME]; + char chainmode[CRYPTO_MAX_ALG_NAME]; + struct crypto_blkcipher *tfm; unsigned int key_size; u8 key[0]; }; @@ -118,11 +121,12 @@ static int crypt_iv_plain_gen(struct crypt_config *cc, u8 *iv, sector_t sector) static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti, const char *opts) { - struct crypto_tfm *essiv_tfm; + struct crypto_cipher *essiv_tfm; struct crypto_tfm *hash_tfm; struct scatterlist sg; unsigned int saltsize; u8 *salt; + int err; if (opts == NULL) { ti->error = "Digest algorithm missing for ESSIV mode"; @@ -155,51 +159,44 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti, crypto_free_tfm(hash_tfm); /* Setup the essiv_tfm with the given salt */ - essiv_tfm = crypto_alloc_tfm(crypto_tfm_alg_name(cc->tfm), - CRYPTO_TFM_MODE_ECB | - CRYPTO_TFM_REQ_MAY_SLEEP); - if (essiv_tfm == NULL) { + essiv_tfm = crypto_alloc_cipher(cc->cipher, 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(essiv_tfm)) { ti->error = "Error allocating crypto tfm for ESSIV"; kfree(salt); - return -EINVAL; + return PTR_ERR(essiv_tfm); } - if (crypto_tfm_alg_blocksize(essiv_tfm) - != crypto_tfm_alg_ivsize(cc->tfm)) { + if (crypto_cipher_blocksize(essiv_tfm) != + crypto_blkcipher_ivsize(cc->tfm)) { ti->error = "Block size of ESSIV cipher does " "not match IV size of block cipher"; - crypto_free_tfm(essiv_tfm); + crypto_free_cipher(essiv_tfm); kfree(salt); return -EINVAL; } - if (crypto_cipher_setkey(essiv_tfm, salt, saltsize) < 0) { + err = crypto_cipher_setkey(essiv_tfm, salt, saltsize); + if (err) { ti->error = "Failed to set key for ESSIV cipher"; - crypto_free_tfm(essiv_tfm); + crypto_free_cipher(essiv_tfm); kfree(salt); - return -EINVAL; + return err; } kfree(salt); - cc->iv_gen_private = (void *)essiv_tfm; + cc->iv_gen_private = essiv_tfm; return 0; } static void crypt_iv_essiv_dtr(struct crypt_config *cc) { - crypto_free_tfm((struct crypto_tfm *)cc->iv_gen_private); + crypto_free_cipher(cc->iv_gen_private); cc->iv_gen_private = NULL; } static int crypt_iv_essiv_gen(struct crypt_config *cc, u8 *iv, sector_t sector) { - struct scatterlist sg; - memset(iv, 0, cc->iv_size); *(u64 *)iv = cpu_to_le64(sector); - - sg_set_buf(&sg, iv, cc->iv_size); - crypto_cipher_encrypt((struct crypto_tfm *)cc->iv_gen_private, - &sg, &sg, cc->iv_size); - + crypto_cipher_encrypt_one(cc->iv_gen_private, iv, iv); return 0; } @@ -220,6 +217,11 @@ crypt_convert_scatterlist(struct crypt_config *cc, struct scatterlist *out, int write, sector_t sector) { u8 iv[cc->iv_size]; + struct blkcipher_desc desc = { + .tfm = cc->tfm, + .info = iv, + .flags = CRYPTO_TFM_REQ_MAY_SLEEP, + }; int r; if (cc->iv_gen_ops) { @@ -228,14 +230,14 @@ crypt_convert_scatterlist(struct crypt_config *cc, struct scatterlist *out, return r; if (write) - r = crypto_cipher_encrypt_iv(cc->tfm, out, in, length, iv); + r = crypto_blkcipher_encrypt_iv(&desc, out, in, length); else - r = crypto_cipher_decrypt_iv(cc->tfm, out, in, length, iv); + r = crypto_blkcipher_decrypt_iv(&desc, out, in, length); } else { if (write) - r = crypto_cipher_encrypt(cc->tfm, out, in, length); + r = crypto_blkcipher_encrypt(&desc, out, in, length); else - r = crypto_cipher_decrypt(cc->tfm, out, in, length); + r = crypto_blkcipher_decrypt(&desc, out, in, length); } return r; @@ -510,13 +512,12 @@ static void crypt_encode_key(char *hex, u8 *key, unsigned int size) static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) { struct crypt_config *cc; - struct crypto_tfm *tfm; + struct crypto_blkcipher *tfm; char *tmp; char *cipher; char *chainmode; char *ivmode; char *ivopts; - unsigned int crypto_flags; unsigned int key_size; unsigned long long tmpll; @@ -556,31 +557,25 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) ivmode = "plain"; } - /* Choose crypto_flags according to chainmode */ - if (strcmp(chainmode, "cbc") == 0) - crypto_flags = CRYPTO_TFM_MODE_CBC; - else if (strcmp(chainmode, "ecb") == 0) - crypto_flags = CRYPTO_TFM_MODE_ECB; - else { - ti->error = "Unknown chaining mode"; + if (strcmp(chainmode, "ecb") && !ivmode) { + ti->error = "This chaining mode requires an IV mechanism"; goto bad1; } - if (crypto_flags != CRYPTO_TFM_MODE_ECB && !ivmode) { - ti->error = "This chaining mode requires an IV mechanism"; + if (snprintf(cc->cipher, CRYPTO_MAX_ALG_NAME, "%s(%s)", chainmode, + cipher) >= CRYPTO_MAX_ALG_NAME) { + ti->error = "Chain mode + cipher name is too long"; goto bad1; } - tfm = crypto_alloc_tfm(cipher, crypto_flags | CRYPTO_TFM_REQ_MAY_SLEEP); - if (!tfm) { + tfm = crypto_alloc_blkcipher(cc->cipher, 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(tfm)) { ti->error = "Error allocating crypto tfm"; goto bad1; } - if (crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER) { - ti->error = "Expected cipher algorithm"; - goto bad2; - } + strcpy(cc->cipher, cipher); + strcpy(cc->chainmode, chainmode); cc->tfm = tfm; /* @@ -603,12 +598,12 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) cc->iv_gen_ops->ctr(cc, ti, ivopts) < 0) goto bad2; - if (tfm->crt_cipher.cit_decrypt_iv && tfm->crt_cipher.cit_encrypt_iv) + cc->iv_size = crypto_blkcipher_ivsize(tfm); + if (cc->iv_size) /* at least a 64 bit sector number should fit in our buffer */ - cc->iv_size = max(crypto_tfm_alg_ivsize(tfm), + cc->iv_size = max(cc->iv_size, (unsigned int)(sizeof(u64) / sizeof(u8))); else { - cc->iv_size = 0; if (cc->iv_gen_ops) { DMWARN("Selected cipher does not support IVs"); if (cc->iv_gen_ops->dtr) @@ -629,7 +624,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) goto bad4; } - if (tfm->crt_cipher.cit_setkey(tfm, cc->key, key_size) < 0) { + if (crypto_blkcipher_setkey(tfm, cc->key, key_size) < 0) { ti->error = "Error setting key"; goto bad5; } @@ -675,7 +670,7 @@ bad3: if (cc->iv_gen_ops && cc->iv_gen_ops->dtr) cc->iv_gen_ops->dtr(cc); bad2: - crypto_free_tfm(tfm); + crypto_free_blkcipher(tfm); bad1: /* Must zero key material before freeing */ memset(cc, 0, sizeof(*cc) + cc->key_size * sizeof(u8)); @@ -693,7 +688,7 @@ static void crypt_dtr(struct dm_target *ti) kfree(cc->iv_mode); if (cc->iv_gen_ops && cc->iv_gen_ops->dtr) cc->iv_gen_ops->dtr(cc); - crypto_free_tfm(cc->tfm); + crypto_free_blkcipher(cc->tfm); dm_put_device(ti, cc->dev); /* Must zero key material before freeing */ @@ -858,18 +853,9 @@ static int crypt_status(struct dm_target *ti, status_type_t type, break; case STATUSTYPE_TABLE: - cipher = crypto_tfm_alg_name(cc->tfm); + cipher = crypto_blkcipher_name(cc->tfm); - switch(cc->tfm->crt_cipher.cit_mode) { - case CRYPTO_TFM_MODE_CBC: - chainmode = "cbc"; - break; - case CRYPTO_TFM_MODE_ECB: - chainmode = "ecb"; - break; - default: - BUG(); - } + chainmode = cc->chainmode; if (cc->iv_mode) DMEMIT("%s-%s-%s ", cipher, chainmode, cc->iv_mode); -- cgit v1.2.3-70-g09d2 From f12cc2090d721647c23dfce20834f4306db3b77d Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Tue, 22 Aug 2006 20:36:13 +1000 Subject: [CRYPTO] users: Use block ciphers where applicable This patch converts all remaining users to use the new block cipher type where applicable. It also changes all simple cipher operations to use the new encrypt_one/decrypt_one interface. Signed-off-by: Herbert Xu --- drivers/net/ppp_mppe.c | 32 +++++++++++++++++++------------- drivers/net/wireless/airo.c | 22 ++++++++++++---------- net/ieee80211/ieee80211_crypt_ccmp.c | 32 ++++++++++++-------------------- net/ieee80211/ieee80211_crypt_tkip.c | 34 ++++++++++++++++++++++------------ net/ieee80211/ieee80211_crypt_wep.c | 25 ++++++++++++++----------- 5 files changed, 79 insertions(+), 66 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ppp_mppe.c b/drivers/net/ppp_mppe.c index 51ff9a9d1bb..495d8667419 100644 --- a/drivers/net/ppp_mppe.c +++ b/drivers/net/ppp_mppe.c @@ -43,6 +43,7 @@ * deprecated in 2.6 */ +#include #include #include #include @@ -95,7 +96,7 @@ static inline void sha_pad_init(struct sha_pad *shapad) * State for an MPPE (de)compressor. */ struct ppp_mppe_state { - struct crypto_tfm *arc4; + struct crypto_blkcipher *arc4; struct crypto_tfm *sha1; unsigned char *sha1_digest; unsigned char master_key[MPPE_MAX_KEY_LEN]; @@ -156,14 +157,15 @@ static void mppe_rekey(struct ppp_mppe_state * state, int initial_key) { unsigned char InterimKey[MPPE_MAX_KEY_LEN]; struct scatterlist sg_in[1], sg_out[1]; + struct blkcipher_desc desc = { .tfm = state->arc4 }; get_new_key_from_sha(state, InterimKey); if (!initial_key) { - crypto_cipher_setkey(state->arc4, InterimKey, state->keylen); + crypto_blkcipher_setkey(state->arc4, InterimKey, state->keylen); setup_sg(sg_in, InterimKey, state->keylen); setup_sg(sg_out, state->session_key, state->keylen); - if (crypto_cipher_encrypt(state->arc4, sg_out, sg_in, - state->keylen) != 0) { + if (crypto_blkcipher_encrypt(&desc, sg_out, sg_in, + state->keylen) != 0) { printk(KERN_WARNING "mppe_rekey: cipher_encrypt failed\n"); } } else { @@ -175,7 +177,7 @@ static void mppe_rekey(struct ppp_mppe_state * state, int initial_key) state->session_key[1] = 0x26; state->session_key[2] = 0x9e; } - crypto_cipher_setkey(state->arc4, state->session_key, state->keylen); + crypto_blkcipher_setkey(state->arc4, state->session_key, state->keylen); } /* @@ -196,9 +198,11 @@ static void *mppe_alloc(unsigned char *options, int optlen) memset(state, 0, sizeof(*state)); - state->arc4 = crypto_alloc_tfm("arc4", 0); - if (!state->arc4) + state->arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(state->arc4)) { + state->arc4 = NULL; goto out_free; + } state->sha1 = crypto_alloc_tfm("sha1", 0); if (!state->sha1) @@ -231,7 +235,7 @@ static void *mppe_alloc(unsigned char *options, int optlen) if (state->sha1) crypto_free_tfm(state->sha1); if (state->arc4) - crypto_free_tfm(state->arc4); + crypto_free_blkcipher(state->arc4); kfree(state); out: return NULL; @@ -249,7 +253,7 @@ static void mppe_free(void *arg) if (state->sha1) crypto_free_tfm(state->sha1); if (state->arc4) - crypto_free_tfm(state->arc4); + crypto_free_blkcipher(state->arc4); kfree(state); } } @@ -356,6 +360,7 @@ mppe_compress(void *arg, unsigned char *ibuf, unsigned char *obuf, int isize, int osize) { struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg; + struct blkcipher_desc desc = { .tfm = state->arc4 }; int proto; struct scatterlist sg_in[1], sg_out[1]; @@ -413,7 +418,7 @@ mppe_compress(void *arg, unsigned char *ibuf, unsigned char *obuf, /* Encrypt packet */ setup_sg(sg_in, ibuf, isize); setup_sg(sg_out, obuf, osize); - if (crypto_cipher_encrypt(state->arc4, sg_out, sg_in, isize) != 0) { + if (crypto_blkcipher_encrypt(&desc, sg_out, sg_in, isize) != 0) { printk(KERN_DEBUG "crypto_cypher_encrypt failed\n"); return -1; } @@ -462,6 +467,7 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf, int osize) { struct ppp_mppe_state *state = (struct ppp_mppe_state *) arg; + struct blkcipher_desc desc = { .tfm = state->arc4 }; unsigned ccount; int flushed = MPPE_BITS(ibuf) & MPPE_BIT_FLUSHED; int sanity = 0; @@ -599,7 +605,7 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf, */ setup_sg(sg_in, ibuf, 1); setup_sg(sg_out, obuf, 1); - if (crypto_cipher_decrypt(state->arc4, sg_out, sg_in, 1) != 0) { + if (crypto_blkcipher_decrypt(&desc, sg_out, sg_in, 1) != 0) { printk(KERN_DEBUG "crypto_cypher_decrypt failed\n"); return DECOMP_ERROR; } @@ -619,7 +625,7 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf, /* And finally, decrypt the rest of the packet. */ setup_sg(sg_in, ibuf + 1, isize - 1); setup_sg(sg_out, obuf + 1, osize - 1); - if (crypto_cipher_decrypt(state->arc4, sg_out, sg_in, isize - 1) != 0) { + if (crypto_blkcipher_decrypt(&desc, sg_out, sg_in, isize - 1)) { printk(KERN_DEBUG "crypto_cypher_decrypt failed\n"); return DECOMP_ERROR; } @@ -694,7 +700,7 @@ static struct compressor ppp_mppe = { static int __init ppp_mppe_init(void) { int answer; - if (!(crypto_alg_available("arc4", 0) && + if (!(crypto_alg_available("ecb(arc4)", 0) && crypto_alg_available("sha1", 0))) return -ENODEV; diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c index a4dd1394271..170c500169d 100644 --- a/drivers/net/wireless/airo.c +++ b/drivers/net/wireless/airo.c @@ -19,6 +19,7 @@ ======================================================================*/ +#include #include #include @@ -1203,7 +1204,7 @@ struct airo_info { struct iw_spy_data spy_data; struct iw_public_data wireless_data; /* MIC stuff */ - struct crypto_tfm *tfm; + struct crypto_cipher *tfm; mic_module mod[2]; mic_statistics micstats; HostRxDesc rxfids[MPI_MAX_FIDS]; // rx/tx/config MPI350 descriptors @@ -1271,7 +1272,8 @@ static int flashrestart(struct airo_info *ai,struct net_device *dev); static int RxSeqValid (struct airo_info *ai,miccntx *context,int mcast,u32 micSeq); static void MoveWindow(miccntx *context, u32 micSeq); -static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *); +static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, + struct crypto_cipher *tfm); static void emmh32_init(emmh32_context *context); static void emmh32_update(emmh32_context *context, u8 *pOctets, int len); static void emmh32_final(emmh32_context *context, u8 digest[4]); @@ -1339,10 +1341,11 @@ static int micsetup(struct airo_info *ai) { int i; if (ai->tfm == NULL) - ai->tfm = crypto_alloc_tfm("aes", CRYPTO_TFM_REQ_MAY_SLEEP); + ai->tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC); - if (ai->tfm == NULL) { + if (IS_ERR(ai->tfm)) { airo_print_err(ai->dev->name, "failed to load transform for AES"); + ai->tfm = NULL; return ERROR; } @@ -1608,7 +1611,8 @@ static void MoveWindow(miccntx *context, u32 micSeq) static unsigned char aes_counter[16]; /* expand the key to fill the MMH coefficient array */ -static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct crypto_tfm *tfm) +static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, + struct crypto_cipher *tfm) { /* take the keying material, expand if necessary, truncate at 16-bytes */ /* run through AES counter mode to generate context->coeff[] */ @@ -1616,7 +1620,6 @@ static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct int i,j; u32 counter; u8 *cipher, plain[16]; - struct scatterlist sg[1]; crypto_cipher_setkey(tfm, pkey, 16); counter = 0; @@ -1627,9 +1630,8 @@ static void emmh32_setseed(emmh32_context *context, u8 *pkey, int keylen, struct aes_counter[12] = (u8)(counter >> 24); counter++; memcpy (plain, aes_counter, 16); - sg_set_buf(sg, plain, 16); - crypto_cipher_encrypt(tfm, sg, sg, 16); - cipher = kmap(sg->page) + sg->offset; + crypto_cipher_encrypt_one(tfm, plain, plain); + cipher = plain; for (j=0; (j<16) && (i< (sizeof(context->coeff)/sizeof(context->coeff[0]))); ) { context->coeff[i++] = ntohl(*(u32 *)&cipher[j]); j += 4; @@ -2432,7 +2434,7 @@ void stop_airo_card( struct net_device *dev, int freeres ) ai->shared, ai->shared_dma); } } - crypto_free_tfm(ai->tfm); + crypto_free_cipher(ai->tfm); del_airo_dev( dev ); free_netdev( dev ); } diff --git a/net/ieee80211/ieee80211_crypt_ccmp.c b/net/ieee80211/ieee80211_crypt_ccmp.c index ed90a8af144..fdfe7704a46 100644 --- a/net/ieee80211/ieee80211_crypt_ccmp.c +++ b/net/ieee80211/ieee80211_crypt_ccmp.c @@ -9,6 +9,7 @@ * more details. */ +#include #include #include #include @@ -48,7 +49,7 @@ struct ieee80211_ccmp_data { int key_idx; - struct crypto_tfm *tfm; + struct crypto_cipher *tfm; /* scratch buffers for virt_to_page() (crypto API) */ u8 tx_b0[AES_BLOCK_LEN], tx_b[AES_BLOCK_LEN], @@ -56,20 +57,10 @@ struct ieee80211_ccmp_data { u8 rx_b0[AES_BLOCK_LEN], rx_b[AES_BLOCK_LEN], rx_a[AES_BLOCK_LEN]; }; -static void ieee80211_ccmp_aes_encrypt(struct crypto_tfm *tfm, - const u8 pt[16], u8 ct[16]) +static inline void ieee80211_ccmp_aes_encrypt(struct crypto_cipher *tfm, + const u8 pt[16], u8 ct[16]) { - struct scatterlist src, dst; - - src.page = virt_to_page(pt); - src.offset = offset_in_page(pt); - src.length = AES_BLOCK_LEN; - - dst.page = virt_to_page(ct); - dst.offset = offset_in_page(ct); - dst.length = AES_BLOCK_LEN; - - crypto_cipher_encrypt(tfm, &dst, &src, AES_BLOCK_LEN); + crypto_cipher_encrypt_one(tfm, ct, pt); } static void *ieee80211_ccmp_init(int key_idx) @@ -81,10 +72,11 @@ static void *ieee80211_ccmp_init(int key_idx) goto fail; priv->key_idx = key_idx; - priv->tfm = crypto_alloc_tfm("aes", 0); - if (priv->tfm == NULL) { + priv->tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(priv->tfm)) { printk(KERN_DEBUG "ieee80211_crypt_ccmp: could not allocate " "crypto API aes\n"); + priv->tfm = NULL; goto fail; } @@ -93,7 +85,7 @@ static void *ieee80211_ccmp_init(int key_idx) fail: if (priv) { if (priv->tfm) - crypto_free_tfm(priv->tfm); + crypto_free_cipher(priv->tfm); kfree(priv); } @@ -104,7 +96,7 @@ static void ieee80211_ccmp_deinit(void *priv) { struct ieee80211_ccmp_data *_priv = priv; if (_priv && _priv->tfm) - crypto_free_tfm(_priv->tfm); + crypto_free_cipher(_priv->tfm); kfree(priv); } @@ -115,7 +107,7 @@ static inline void xor_block(u8 * b, u8 * a, size_t len) b[i] ^= a[i]; } -static void ccmp_init_blocks(struct crypto_tfm *tfm, +static void ccmp_init_blocks(struct crypto_cipher *tfm, struct ieee80211_hdr_4addr *hdr, u8 * pn, size_t dlen, u8 * b0, u8 * auth, u8 * s0) { @@ -377,7 +369,7 @@ static int ieee80211_ccmp_set_key(void *key, int len, u8 * seq, void *priv) { struct ieee80211_ccmp_data *data = priv; int keyidx; - struct crypto_tfm *tfm = data->tfm; + struct crypto_cipher *tfm = data->tfm; keyidx = data->key_idx; memset(data, 0, sizeof(*data)); diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c index 34dba0ba545..d60ce9b49b4 100644 --- a/net/ieee80211/ieee80211_crypt_tkip.c +++ b/net/ieee80211/ieee80211_crypt_tkip.c @@ -9,6 +9,7 @@ * more details. */ +#include #include #include #include @@ -52,7 +53,7 @@ struct ieee80211_tkip_data { int key_idx; - struct crypto_tfm *tfm_arc4; + struct crypto_blkcipher *tfm_arc4; struct crypto_tfm *tfm_michael; /* scratch buffers for virt_to_page() (crypto API) */ @@ -85,10 +86,12 @@ static void *ieee80211_tkip_init(int key_idx) priv->key_idx = key_idx; - priv->tfm_arc4 = crypto_alloc_tfm("arc4", 0); - if (priv->tfm_arc4 == NULL) { + priv->tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0, + CRYPTO_ALG_ASYNC); + if (IS_ERR(priv->tfm_arc4)) { printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " "crypto API arc4\n"); + priv->tfm_arc4 = NULL; goto fail; } @@ -106,7 +109,7 @@ static void *ieee80211_tkip_init(int key_idx) if (priv->tfm_michael) crypto_free_tfm(priv->tfm_michael); if (priv->tfm_arc4) - crypto_free_tfm(priv->tfm_arc4); + crypto_free_blkcipher(priv->tfm_arc4); kfree(priv); } @@ -119,7 +122,7 @@ static void ieee80211_tkip_deinit(void *priv) if (_priv && _priv->tfm_michael) crypto_free_tfm(_priv->tfm_michael); if (_priv && _priv->tfm_arc4) - crypto_free_tfm(_priv->tfm_arc4); + crypto_free_blkcipher(_priv->tfm_arc4); kfree(priv); } @@ -318,6 +321,7 @@ static int ieee80211_tkip_hdr(struct sk_buff *skb, int hdr_len, static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) { struct ieee80211_tkip_data *tkey = priv; + struct blkcipher_desc desc = { .tfm = tkey->tfm_arc4 }; int len; u8 rc4key[16], *pos, *icv; u32 crc; @@ -351,18 +355,17 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) icv[2] = crc >> 16; icv[3] = crc >> 24; - crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16); + crypto_blkcipher_setkey(tkey->tfm_arc4, rc4key, 16); sg.page = virt_to_page(pos); sg.offset = offset_in_page(pos); sg.length = len + 4; - crypto_cipher_encrypt(tkey->tfm_arc4, &sg, &sg, len + 4); - - return 0; + return crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4); } static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) { struct ieee80211_tkip_data *tkey = priv; + struct blkcipher_desc desc = { .tfm = tkey->tfm_arc4 }; u8 rc4key[16]; u8 keyidx, *pos; u32 iv32; @@ -434,11 +437,18 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) plen = skb->len - hdr_len - 12; - crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16); + crypto_blkcipher_setkey(tkey->tfm_arc4, rc4key, 16); sg.page = virt_to_page(pos); sg.offset = offset_in_page(pos); sg.length = plen + 4; - crypto_cipher_decrypt(tkey->tfm_arc4, &sg, &sg, plen + 4); + if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4)) { + if (net_ratelimit()) { + printk(KERN_DEBUG ": TKIP: failed to decrypt " + "received packet from " MAC_FMT "\n", + MAC_ARG(hdr->addr2)); + } + return -7; + } crc = ~crc32_le(~0, pos, plen); icv[0] = crc; @@ -619,7 +629,7 @@ static int ieee80211_tkip_set_key(void *key, int len, u8 * seq, void *priv) struct ieee80211_tkip_data *tkey = priv; int keyidx; struct crypto_tfm *tfm = tkey->tfm_michael; - struct crypto_tfm *tfm2 = tkey->tfm_arc4; + struct crypto_blkcipher *tfm2 = tkey->tfm_arc4; keyidx = tkey->key_idx; memset(tkey, 0, sizeof(*tkey)); diff --git a/net/ieee80211/ieee80211_crypt_wep.c b/net/ieee80211/ieee80211_crypt_wep.c index 0ebf235f693..3d46d3efe1d 100644 --- a/net/ieee80211/ieee80211_crypt_wep.c +++ b/net/ieee80211/ieee80211_crypt_wep.c @@ -9,6 +9,7 @@ * more details. */ +#include #include #include #include @@ -32,7 +33,7 @@ struct prism2_wep_data { u8 key[WEP_KEY_LEN + 1]; u8 key_len; u8 key_idx; - struct crypto_tfm *tfm; + struct crypto_blkcipher *tfm; }; static void *prism2_wep_init(int keyidx) @@ -44,10 +45,11 @@ static void *prism2_wep_init(int keyidx) goto fail; priv->key_idx = keyidx; - priv->tfm = crypto_alloc_tfm("arc4", 0); - if (priv->tfm == NULL) { + priv->tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(priv->tfm)) { printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate " "crypto API arc4\n"); + priv->tfm = NULL; goto fail; } @@ -59,7 +61,7 @@ static void *prism2_wep_init(int keyidx) fail: if (priv) { if (priv->tfm) - crypto_free_tfm(priv->tfm); + crypto_free_blkcipher(priv->tfm); kfree(priv); } return NULL; @@ -69,7 +71,7 @@ static void prism2_wep_deinit(void *priv) { struct prism2_wep_data *_priv = priv; if (_priv && _priv->tfm) - crypto_free_tfm(_priv->tfm); + crypto_free_blkcipher(_priv->tfm); kfree(priv); } @@ -120,6 +122,7 @@ static int prism2_wep_build_iv(struct sk_buff *skb, int hdr_len, static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) { struct prism2_wep_data *wep = priv; + struct blkcipher_desc desc = { .tfm = wep->tfm }; u32 crc, klen, len; u8 *pos, *icv; struct scatterlist sg; @@ -151,13 +154,11 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) icv[2] = crc >> 16; icv[3] = crc >> 24; - crypto_cipher_setkey(wep->tfm, key, klen); + crypto_blkcipher_setkey(wep->tfm, key, klen); sg.page = virt_to_page(pos); sg.offset = offset_in_page(pos); sg.length = len + 4; - crypto_cipher_encrypt(wep->tfm, &sg, &sg, len + 4); - - return 0; + return crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4); } /* Perform WEP decryption on given buffer. Buffer includes whole WEP part of @@ -170,6 +171,7 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) { struct prism2_wep_data *wep = priv; + struct blkcipher_desc desc = { .tfm = wep->tfm }; u32 crc, klen, plen; u8 key[WEP_KEY_LEN + 3]; u8 keyidx, *pos, icv[4]; @@ -194,11 +196,12 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) /* Apply RC4 to data and compute CRC32 over decrypted data */ plen = skb->len - hdr_len - 8; - crypto_cipher_setkey(wep->tfm, key, klen); + crypto_blkcipher_setkey(wep->tfm, key, klen); sg.page = virt_to_page(pos); sg.offset = offset_in_page(pos); sg.length = plen + 4; - crypto_cipher_decrypt(wep->tfm, &sg, &sg, plen + 4); + if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4)) + return -7; crc = ~crc32_le(~0, pos, plen); icv[0] = crc; -- cgit v1.2.3-70-g09d2 From efcf8023e299be605f217dc2c1b2754b5534569c Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sat, 5 Aug 2006 16:28:19 +1000 Subject: [CRYPTO] drivers: Remove obsolete block cipher operations This patch removes obsolete block operations of the simple cipher type from drivers. These were preserved so that existing users can make a smooth transition. Now that the transition is complete, they are no longer needed. Signed-off-by: Herbert Xu --- arch/s390/crypto/aes_s390.c | 112 ------------------------ arch/s390/crypto/des_s390.c | 203 ------------------------------------------- drivers/crypto/padlock-aes.c | 44 ---------- 3 files changed, 359 deletions(-) (limited to 'drivers') diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index 8f04b4e41b5..15c9eec0292 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -113,114 +113,6 @@ static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) } } -static unsigned int aes_encrypt_ecb(const struct cipher_desc *desc, u8 *out, - const u8 *in, unsigned int nbytes) -{ - struct s390_aes_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(AES_BLOCK_SIZE - 1); - - switch (sctx->key_len) { - case 16: - ret = crypt_s390_km(KM_AES_128_ENCRYPT, &sctx->key, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - break; - case 24: - ret = crypt_s390_km(KM_AES_192_ENCRYPT, &sctx->key, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - break; - case 32: - ret = crypt_s390_km(KM_AES_256_ENCRYPT, &sctx->key, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - break; - } - return nbytes; -} - -static unsigned int aes_decrypt_ecb(const struct cipher_desc *desc, u8 *out, - const u8 *in, unsigned int nbytes) -{ - struct s390_aes_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(AES_BLOCK_SIZE - 1); - - switch (sctx->key_len) { - case 16: - ret = crypt_s390_km(KM_AES_128_DECRYPT, &sctx->key, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - break; - case 24: - ret = crypt_s390_km(KM_AES_192_DECRYPT, &sctx->key, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - break; - case 32: - ret = crypt_s390_km(KM_AES_256_DECRYPT, &sctx->key, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - break; - } - return nbytes; -} - -static unsigned int aes_encrypt_cbc(const struct cipher_desc *desc, u8 *out, - const u8 *in, unsigned int nbytes) -{ - struct s390_aes_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(AES_BLOCK_SIZE - 1); - - memcpy(&sctx->iv, desc->info, AES_BLOCK_SIZE); - switch (sctx->key_len) { - case 16: - ret = crypt_s390_kmc(KMC_AES_128_ENCRYPT, &sctx->iv, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - break; - case 24: - ret = crypt_s390_kmc(KMC_AES_192_ENCRYPT, &sctx->iv, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - break; - case 32: - ret = crypt_s390_kmc(KMC_AES_256_ENCRYPT, &sctx->iv, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - break; - } - memcpy(desc->info, &sctx->iv, AES_BLOCK_SIZE); - - return nbytes; -} - -static unsigned int aes_decrypt_cbc(const struct cipher_desc *desc, u8 *out, - const u8 *in, unsigned int nbytes) -{ - struct s390_aes_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(AES_BLOCK_SIZE - 1); - - memcpy(&sctx->iv, desc->info, AES_BLOCK_SIZE); - switch (sctx->key_len) { - case 16: - ret = crypt_s390_kmc(KMC_AES_128_DECRYPT, &sctx->iv, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - break; - case 24: - ret = crypt_s390_kmc(KMC_AES_192_DECRYPT, &sctx->iv, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - break; - case 32: - ret = crypt_s390_kmc(KMC_AES_256_DECRYPT, &sctx->iv, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - break; - } - return nbytes; -} - static struct crypto_alg aes_alg = { .cra_name = "aes", @@ -238,10 +130,6 @@ static struct crypto_alg aes_alg = { .cia_setkey = aes_set_key, .cia_encrypt = aes_encrypt, .cia_decrypt = aes_decrypt, - .cia_encrypt_ecb = aes_encrypt_ecb, - .cia_decrypt_ecb = aes_decrypt_ecb, - .cia_encrypt_cbc = aes_encrypt_cbc, - .cia_decrypt_cbc = aes_decrypt_cbc, } } }; diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c index a6d2385ccb7..2aba04852fe 100644 --- a/arch/s390/crypto/des_s390.c +++ b/arch/s390/crypto/des_s390.c @@ -73,67 +73,6 @@ static void des_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) crypt_s390_km(KM_DEA_DECRYPT, dctx->key, out, in, DES_BLOCK_SIZE); } -static unsigned int des_encrypt_ecb(const struct cipher_desc *desc, u8 *out, - const u8 *in, unsigned int nbytes) -{ - struct crypt_s390_des_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(DES_BLOCK_SIZE - 1); - ret = crypt_s390_km(KM_DEA_ENCRYPT, sctx->key, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - - return nbytes; -} - -static unsigned int des_decrypt_ecb(const struct cipher_desc *desc, u8 *out, - const u8 *in, unsigned int nbytes) -{ - struct crypt_s390_des_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(DES_BLOCK_SIZE - 1); - ret = crypt_s390_km(KM_DEA_DECRYPT, sctx->key, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - - return nbytes; -} - -static unsigned int des_encrypt_cbc(const struct cipher_desc *desc, u8 *out, - const u8 *in, unsigned int nbytes) -{ - struct crypt_s390_des_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(DES_BLOCK_SIZE - 1); - - memcpy(sctx->iv, desc->info, DES_BLOCK_SIZE); - ret = crypt_s390_kmc(KMC_DEA_ENCRYPT, &sctx->iv, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - - memcpy(desc->info, sctx->iv, DES_BLOCK_SIZE); - return nbytes; -} - -static unsigned int des_decrypt_cbc(const struct cipher_desc *desc, u8 *out, - const u8 *in, unsigned int nbytes) -{ - struct crypt_s390_des_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(DES_BLOCK_SIZE - 1); - - memcpy(&sctx->iv, desc->info, DES_BLOCK_SIZE); - ret = crypt_s390_kmc(KMC_DEA_DECRYPT, &sctx->iv, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - - return nbytes; -} - static struct crypto_alg des_alg = { .cra_name = "des", .cra_driver_name = "des-s390", @@ -150,10 +89,6 @@ static struct crypto_alg des_alg = { .cia_setkey = des_setkey, .cia_encrypt = des_encrypt, .cia_decrypt = des_decrypt, - .cia_encrypt_ecb = des_encrypt_ecb, - .cia_decrypt_ecb = des_decrypt_ecb, - .cia_encrypt_cbc = des_encrypt_cbc, - .cia_decrypt_cbc = des_decrypt_cbc, } } }; @@ -344,71 +279,6 @@ static void des3_128_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) DES3_128_BLOCK_SIZE); } -static unsigned int des3_128_encrypt_ecb(const struct cipher_desc *desc, - u8 *out, const u8 *in, - unsigned int nbytes) -{ - struct crypt_s390_des3_128_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(DES3_128_BLOCK_SIZE - 1); - ret = crypt_s390_km(KM_TDEA_128_ENCRYPT, sctx->key, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - - return nbytes; -} - -static unsigned int des3_128_decrypt_ecb(const struct cipher_desc *desc, - u8 *out, const u8 *in, - unsigned int nbytes) -{ - struct crypt_s390_des3_128_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(DES3_128_BLOCK_SIZE - 1); - ret = crypt_s390_km(KM_TDEA_128_DECRYPT, sctx->key, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - - return nbytes; -} - -static unsigned int des3_128_encrypt_cbc(const struct cipher_desc *desc, - u8 *out, const u8 *in, - unsigned int nbytes) -{ - struct crypt_s390_des3_128_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(DES3_128_BLOCK_SIZE - 1); - - memcpy(sctx->iv, desc->info, DES3_128_BLOCK_SIZE); - ret = crypt_s390_kmc(KMC_TDEA_128_ENCRYPT, &sctx->iv, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - - memcpy(desc->info, sctx->iv, DES3_128_BLOCK_SIZE); - return nbytes; -} - -static unsigned int des3_128_decrypt_cbc(const struct cipher_desc *desc, - u8 *out, const u8 *in, - unsigned int nbytes) -{ - struct crypt_s390_des3_128_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(DES3_128_BLOCK_SIZE - 1); - - memcpy(&sctx->iv, desc->info, DES3_128_BLOCK_SIZE); - ret = crypt_s390_kmc(KMC_TDEA_128_DECRYPT, &sctx->iv, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - - return nbytes; -} - static struct crypto_alg des3_128_alg = { .cra_name = "des3_ede128", .cra_driver_name = "des3_ede128-s390", @@ -425,10 +295,6 @@ static struct crypto_alg des3_128_alg = { .cia_setkey = des3_128_setkey, .cia_encrypt = des3_128_encrypt, .cia_decrypt = des3_128_decrypt, - .cia_encrypt_ecb = des3_128_encrypt_ecb, - .cia_decrypt_ecb = des3_128_decrypt_ecb, - .cia_encrypt_cbc = des3_128_encrypt_cbc, - .cia_decrypt_cbc = des3_128_decrypt_cbc, } } }; @@ -575,71 +441,6 @@ static void des3_192_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) DES3_192_BLOCK_SIZE); } -static unsigned int des3_192_encrypt_ecb(const struct cipher_desc *desc, - u8 *out, const u8 *in, - unsigned int nbytes) -{ - struct crypt_s390_des3_192_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(DES3_192_BLOCK_SIZE - 1); - ret = crypt_s390_km(KM_TDEA_192_ENCRYPT, sctx->key, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - - return nbytes; -} - -static unsigned int des3_192_decrypt_ecb(const struct cipher_desc *desc, - u8 *out, const u8 *in, - unsigned int nbytes) -{ - struct crypt_s390_des3_192_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(DES3_192_BLOCK_SIZE - 1); - ret = crypt_s390_km(KM_TDEA_192_DECRYPT, sctx->key, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - - return nbytes; -} - -static unsigned int des3_192_encrypt_cbc(const struct cipher_desc *desc, - u8 *out, const u8 *in, - unsigned int nbytes) -{ - struct crypt_s390_des3_192_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(DES3_192_BLOCK_SIZE - 1); - - memcpy(sctx->iv, desc->info, DES3_192_BLOCK_SIZE); - ret = crypt_s390_kmc(KMC_TDEA_192_ENCRYPT, &sctx->iv, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - - memcpy(desc->info, sctx->iv, DES3_192_BLOCK_SIZE); - return nbytes; -} - -static unsigned int des3_192_decrypt_cbc(const struct cipher_desc *desc, - u8 *out, const u8 *in, - unsigned int nbytes) -{ - struct crypt_s390_des3_192_ctx *sctx = crypto_tfm_ctx(desc->tfm); - int ret; - - /* only use complete blocks */ - nbytes &= ~(DES3_192_BLOCK_SIZE - 1); - - memcpy(&sctx->iv, desc->info, DES3_192_BLOCK_SIZE); - ret = crypt_s390_kmc(KMC_TDEA_192_DECRYPT, &sctx->iv, out, in, nbytes); - BUG_ON((ret < 0) || (ret != nbytes)); - - return nbytes; -} - static struct crypto_alg des3_192_alg = { .cra_name = "des3_ede", .cra_driver_name = "des3_ede-s390", @@ -656,10 +457,6 @@ static struct crypto_alg des3_192_alg = { .cia_setkey = des3_192_setkey, .cia_encrypt = des3_192_encrypt, .cia_decrypt = des3_192_decrypt, - .cia_encrypt_ecb = des3_192_encrypt_ecb, - .cia_decrypt_ecb = des3_192_decrypt_ecb, - .cia_encrypt_cbc = des3_192_encrypt_cbc, - .cia_decrypt_cbc = des3_192_decrypt_cbc, } } }; diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c index f53301e836d..d4501dc7e65 100644 --- a/drivers/crypto/padlock-aes.c +++ b/drivers/crypto/padlock-aes.c @@ -452,46 +452,6 @@ static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) padlock_xcrypt_ecb(in, out, ctx->D, &ctx->cword.decrypt, 1); } -static unsigned int aes_encrypt_ecb(const struct cipher_desc *desc, u8 *out, - const u8 *in, unsigned int nbytes) -{ - struct aes_ctx *ctx = aes_ctx(desc->tfm); - padlock_xcrypt_ecb(in, out, ctx->E, &ctx->cword.encrypt, - nbytes / AES_BLOCK_SIZE); - return nbytes & ~(AES_BLOCK_SIZE - 1); -} - -static unsigned int aes_decrypt_ecb(const struct cipher_desc *desc, u8 *out, - const u8 *in, unsigned int nbytes) -{ - struct aes_ctx *ctx = aes_ctx(desc->tfm); - padlock_xcrypt_ecb(in, out, ctx->D, &ctx->cword.decrypt, - nbytes / AES_BLOCK_SIZE); - return nbytes & ~(AES_BLOCK_SIZE - 1); -} - -static unsigned int aes_encrypt_cbc(const struct cipher_desc *desc, u8 *out, - const u8 *in, unsigned int nbytes) -{ - struct aes_ctx *ctx = aes_ctx(desc->tfm); - u8 *iv; - - iv = padlock_xcrypt_cbc(in, out, ctx->E, desc->info, - &ctx->cword.encrypt, nbytes / AES_BLOCK_SIZE); - memcpy(desc->info, iv, AES_BLOCK_SIZE); - - return nbytes & ~(AES_BLOCK_SIZE - 1); -} - -static unsigned int aes_decrypt_cbc(const struct cipher_desc *desc, u8 *out, - const u8 *in, unsigned int nbytes) -{ - struct aes_ctx *ctx = aes_ctx(desc->tfm); - padlock_xcrypt_cbc(in, out, ctx->D, desc->info, &ctx->cword.decrypt, - nbytes / AES_BLOCK_SIZE); - return nbytes & ~(AES_BLOCK_SIZE - 1); -} - static struct crypto_alg aes_alg = { .cra_name = "aes", .cra_driver_name = "aes-padlock", @@ -509,10 +469,6 @@ static struct crypto_alg aes_alg = { .cia_setkey = aes_set_key, .cia_encrypt = aes_encrypt, .cia_decrypt = aes_decrypt, - .cia_encrypt_ecb = aes_encrypt_ecb, - .cia_decrypt_ecb = aes_decrypt_ecb, - .cia_encrypt_cbc = aes_encrypt_cbc, - .cia_decrypt_cbc = aes_decrypt_cbc, } } }; -- cgit v1.2.3-70-g09d2 From dc64ddf4918f0da52df10d83c2a5941a547c2035 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 24 Aug 2006 18:45:50 +1000 Subject: [SCSI] iscsi: Use crypto_hash interface instead of crypto_digest This patch converts ISCSI to use the new crypto_hash interface instead of crypto_digest. It's a fairly straightforward substitution. Signed-off-by: Herbert Xu --- drivers/scsi/iscsi_tcp.c | 134 ++++++++++++++++++++++++++--------------------- drivers/scsi/iscsi_tcp.h | 9 ++-- 2 files changed, 78 insertions(+), 65 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 058f094f945..66a1ae1d698 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -26,6 +26,7 @@ * Zhenyu Wang */ +#include #include #include #include @@ -107,8 +108,11 @@ iscsi_hdr_digest(struct iscsi_conn *conn, struct iscsi_buf *buf, u8* crc) { struct iscsi_tcp_conn *tcp_conn = conn->dd_data; + struct hash_desc desc; - crypto_digest_digest(tcp_conn->tx_tfm, &buf->sg, 1, crc); + desc.tfm = tcp_conn->tx_tfm; + desc.flags = 0; + crypto_hash_digest(&desc, &buf->sg, buf->sg.length, crc); buf->sg.length += sizeof(uint32_t); } @@ -452,11 +456,14 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn) } if (conn->hdrdgst_en) { + struct hash_desc desc; struct scatterlist sg; sg_init_one(&sg, (u8 *)hdr, sizeof(struct iscsi_hdr) + ahslen); - crypto_digest_digest(tcp_conn->rx_tfm, &sg, 1, (u8 *)&cdgst); + desc.tfm = tcp_conn->rx_tfm; + desc.flags = 0; + crypto_hash_digest(&desc, &sg, sg.length, (u8 *)&cdgst); rdgst = *(uint32_t*)((char*)hdr + sizeof(struct iscsi_hdr) + ahslen); if (cdgst != rdgst) { @@ -673,7 +680,7 @@ partial_sg_digest_update(struct iscsi_tcp_conn *tcp_conn, memcpy(&temp, sg, sizeof(struct scatterlist)); temp.offset = offset; temp.length = length; - crypto_digest_update(tcp_conn->data_rx_tfm, &temp, 1); + crypto_hash_update(&tcp_conn->data_rx_hash, &temp, length); } static void @@ -682,7 +689,7 @@ iscsi_recv_digest_update(struct iscsi_tcp_conn *tcp_conn, char* buf, int len) struct scatterlist tmp; sg_init_one(&tmp, buf, len); - crypto_digest_update(tcp_conn->data_rx_tfm, &tmp, 1); + crypto_hash_update(&tcp_conn->data_rx_hash, &tmp, len); } static int iscsi_scsi_data_in(struct iscsi_conn *conn) @@ -736,9 +743,9 @@ static int iscsi_scsi_data_in(struct iscsi_conn *conn) if (!rc) { if (conn->datadgst_en) { if (!offset) - crypto_digest_update( - tcp_conn->data_rx_tfm, - &sg[i], 1); + crypto_hash_update( + &tcp_conn->data_rx_hash, + &sg[i], sg[i].length); else partial_sg_digest_update(tcp_conn, &sg[i], @@ -877,8 +884,7 @@ more: rc = iscsi_tcp_hdr_recv(conn); if (!rc && tcp_conn->in.datalen) { if (conn->datadgst_en) { - BUG_ON(!tcp_conn->data_rx_tfm); - crypto_digest_init(tcp_conn->data_rx_tfm); + crypto_hash_init(&tcp_conn->data_rx_hash); } tcp_conn->in_progress = IN_PROGRESS_DATA_RECV; } else if (rc) { @@ -931,11 +937,11 @@ more: tcp_conn->in.padding); memset(pad, 0, tcp_conn->in.padding); sg_init_one(&sg, pad, tcp_conn->in.padding); - crypto_digest_update(tcp_conn->data_rx_tfm, - &sg, 1); + crypto_hash_update(&tcp_conn->data_rx_hash, + &sg, sg.length); } - crypto_digest_final(tcp_conn->data_rx_tfm, - (u8 *) & tcp_conn->in.datadgst); + crypto_hash_final(&tcp_conn->data_rx_hash, + (u8 *)&tcp_conn->in.datadgst); debug_tcp("rx digest 0x%x\n", tcp_conn->in.datadgst); tcp_conn->in_progress = IN_PROGRESS_DDIGEST_RECV; } else @@ -1181,8 +1187,7 @@ iscsi_data_digest_init(struct iscsi_tcp_conn *tcp_conn, { struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data; - BUG_ON(!tcp_conn->data_tx_tfm); - crypto_digest_init(tcp_conn->data_tx_tfm); + crypto_hash_init(&tcp_conn->data_tx_hash); tcp_ctask->digest_count = 4; } @@ -1196,7 +1201,7 @@ iscsi_digest_final_send(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask, int sent = 0; if (final) - crypto_digest_final(tcp_conn->data_tx_tfm, (u8*)digest); + crypto_hash_final(&tcp_conn->data_tx_hash, (u8 *)digest); iscsi_buf_init_iov(buf, (char*)digest, 4); rc = iscsi_sendpage(conn, buf, &tcp_ctask->digest_count, &sent); @@ -1491,16 +1496,17 @@ handle_xmstate_imm_data(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) if (rc) { tcp_ctask->xmstate |= XMSTATE_IMM_DATA; if (conn->datadgst_en) { - crypto_digest_final(tcp_conn->data_tx_tfm, - (u8*)&tcp_ctask->immdigest); + crypto_hash_final(&tcp_conn->data_tx_hash, + (u8 *)&tcp_ctask->immdigest); debug_tcp("tx imm sendpage fail 0x%x\n", tcp_ctask->datadigest); } return rc; } if (conn->datadgst_en) - crypto_digest_update(tcp_conn->data_tx_tfm, - &tcp_ctask->sendbuf.sg, 1); + crypto_hash_update(&tcp_conn->data_tx_hash, + &tcp_ctask->sendbuf.sg, + tcp_ctask->sendbuf.sg.length); if (!ctask->imm_count) break; @@ -1577,8 +1583,8 @@ handle_xmstate_uns_data(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) tcp_ctask->xmstate |= XMSTATE_UNS_DATA; /* will continue with this ctask later.. */ if (conn->datadgst_en) { - crypto_digest_final(tcp_conn->data_tx_tfm, - (u8 *)&dtask->digest); + crypto_hash_final(&tcp_conn->data_tx_hash, + (u8 *)&dtask->digest); debug_tcp("tx uns data fail 0x%x\n", dtask->digest); } @@ -1593,8 +1599,9 @@ handle_xmstate_uns_data(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) * so pass it */ if (conn->datadgst_en && tcp_ctask->sent - start > 0) - crypto_digest_update(tcp_conn->data_tx_tfm, - &tcp_ctask->sendbuf.sg, 1); + crypto_hash_update(&tcp_conn->data_tx_hash, + &tcp_ctask->sendbuf.sg, + tcp_ctask->sendbuf.sg.length); if (!ctask->data_count) break; @@ -1668,7 +1675,7 @@ solicit_again: tcp_ctask->xmstate |= XMSTATE_SOL_DATA; /* will continue with this ctask later.. */ if (conn->datadgst_en) { - crypto_digest_final(tcp_conn->data_tx_tfm, + crypto_hash_final(&tcp_conn->data_tx_hash, (u8 *)&dtask->digest); debug_tcp("r2t data send fail 0x%x\n", dtask->digest); } @@ -1677,8 +1684,8 @@ solicit_again: BUG_ON(r2t->data_count < 0); if (conn->datadgst_en) - crypto_digest_update(tcp_conn->data_tx_tfm, &r2t->sendbuf.sg, - 1); + crypto_hash_update(&tcp_conn->data_tx_hash, &r2t->sendbuf.sg, + r2t->sendbuf.sg.length); if (r2t->data_count) { BUG_ON(ctask->sc->use_sg == 0); @@ -1766,8 +1773,9 @@ handle_xmstate_w_pad(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask) } if (conn->datadgst_en) { - crypto_digest_update(tcp_conn->data_tx_tfm, - &tcp_ctask->sendbuf.sg, 1); + crypto_hash_update(&tcp_conn->data_tx_hash, + &tcp_ctask->sendbuf.sg, + tcp_ctask->sendbuf.sg.length); /* imm data? */ if (!dtask) { rc = iscsi_digest_final_send(conn, ctask, @@ -1963,13 +1971,13 @@ iscsi_tcp_conn_destroy(struct iscsi_cls_conn *cls_conn) /* now free tcp_conn */ if (digest) { if (tcp_conn->tx_tfm) - crypto_free_tfm(tcp_conn->tx_tfm); + crypto_free_hash(tcp_conn->tx_tfm); if (tcp_conn->rx_tfm) - crypto_free_tfm(tcp_conn->rx_tfm); - if (tcp_conn->data_tx_tfm) - crypto_free_tfm(tcp_conn->data_tx_tfm); - if (tcp_conn->data_rx_tfm) - crypto_free_tfm(tcp_conn->data_rx_tfm); + crypto_free_hash(tcp_conn->rx_tfm); + if (tcp_conn->data_tx_hash.tfm) + crypto_free_hash(tcp_conn->data_tx_hash.tfm); + if (tcp_conn->data_rx_hash.tfm) + crypto_free_hash(tcp_conn->data_rx_hash.tfm); } kfree(tcp_conn); @@ -2130,44 +2138,48 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param, if (conn->hdrdgst_en) { tcp_conn->hdr_size += sizeof(__u32); if (!tcp_conn->tx_tfm) - tcp_conn->tx_tfm = crypto_alloc_tfm("crc32c", - 0); - if (!tcp_conn->tx_tfm) - return -ENOMEM; + tcp_conn->tx_tfm = + crypto_alloc_hash("crc32c", 0, + CRYPTO_ALG_ASYNC); + if (IS_ERR(tcp_conn->tx_tfm)) + return PTR_ERR(tcp_conn->tx_tfm); if (!tcp_conn->rx_tfm) - tcp_conn->rx_tfm = crypto_alloc_tfm("crc32c", - 0); - if (!tcp_conn->rx_tfm) { - crypto_free_tfm(tcp_conn->tx_tfm); - return -ENOMEM; + tcp_conn->rx_tfm = + crypto_alloc_hash("crc32c", 0, + CRYPTO_ALG_ASYNC); + if (IS_ERR(tcp_conn->rx_tfm)) { + crypto_free_hash(tcp_conn->tx_tfm); + return PTR_ERR(tcp_conn->rx_tfm); } } else { if (tcp_conn->tx_tfm) - crypto_free_tfm(tcp_conn->tx_tfm); + crypto_free_hash(tcp_conn->tx_tfm); if (tcp_conn->rx_tfm) - crypto_free_tfm(tcp_conn->rx_tfm); + crypto_free_hash(tcp_conn->rx_tfm); } break; case ISCSI_PARAM_DATADGST_EN: iscsi_set_param(cls_conn, param, buf, buflen); if (conn->datadgst_en) { - if (!tcp_conn->data_tx_tfm) - tcp_conn->data_tx_tfm = - crypto_alloc_tfm("crc32c", 0); - if (!tcp_conn->data_tx_tfm) - return -ENOMEM; - if (!tcp_conn->data_rx_tfm) - tcp_conn->data_rx_tfm = - crypto_alloc_tfm("crc32c", 0); - if (!tcp_conn->data_rx_tfm) { - crypto_free_tfm(tcp_conn->data_tx_tfm); - return -ENOMEM; + if (!tcp_conn->data_tx_hash.tfm) + tcp_conn->data_tx_hash.tfm = + crypto_alloc_hash("crc32c", 0, + CRYPTO_ALG_ASYNC); + if (IS_ERR(tcp_conn->data_tx_hash.tfm)) + return PTR_ERR(tcp_conn->data_tx_hash.tfm); + if (!tcp_conn->data_rx_hash.tfm) + tcp_conn->data_rx_hash.tfm = + crypto_alloc_hash("crc32c", 0, + CRYPTO_ALG_ASYNC); + if (IS_ERR(tcp_conn->data_rx_hash.tfm)) { + crypto_free_hash(tcp_conn->data_tx_hash.tfm); + return PTR_ERR(tcp_conn->data_rx_hash.tfm); } } else { - if (tcp_conn->data_tx_tfm) - crypto_free_tfm(tcp_conn->data_tx_tfm); - if (tcp_conn->data_rx_tfm) - crypto_free_tfm(tcp_conn->data_rx_tfm); + if (tcp_conn->data_tx_hash.tfm) + crypto_free_hash(tcp_conn->data_tx_hash.tfm); + if (tcp_conn->data_rx_hash.tfm) + crypto_free_hash(tcp_conn->data_rx_hash.tfm); } tcp_conn->sendpage = conn->datadgst_en ? sock_no_sendpage : tcp_conn->sock->ops->sendpage; diff --git a/drivers/scsi/iscsi_tcp.h b/drivers/scsi/iscsi_tcp.h index 6a4ee704e46..e35701305fc 100644 --- a/drivers/scsi/iscsi_tcp.h +++ b/drivers/scsi/iscsi_tcp.h @@ -51,6 +51,7 @@ #define ISCSI_SG_TABLESIZE SG_ALL #define ISCSI_TCP_MAX_CMD_LEN 16 +struct crypto_hash; struct socket; /* Socket connection recieve helper */ @@ -84,8 +85,8 @@ struct iscsi_tcp_conn { /* iSCSI connection-wide sequencing */ int hdr_size; /* PDU header size */ - struct crypto_tfm *rx_tfm; /* CRC32C (Rx) */ - struct crypto_tfm *data_rx_tfm; /* CRC32C (Rx) for data */ + struct crypto_hash *rx_tfm; /* CRC32C (Rx) */ + struct hash_desc data_rx_hash; /* CRC32C (Rx) for data */ /* control data */ struct iscsi_tcp_recv in; /* TCP receive context */ @@ -97,8 +98,8 @@ struct iscsi_tcp_conn { void (*old_write_space)(struct sock *); /* xmit */ - struct crypto_tfm *tx_tfm; /* CRC32C (Tx) */ - struct crypto_tfm *data_tx_tfm; /* CRC32C (Tx) for data */ + struct crypto_hash *tx_tfm; /* CRC32C (Tx) */ + struct hash_desc data_tx_hash; /* CRC32C (Tx) for data */ /* MIB custom statistics */ uint32_t sendpage_failures_cnt; -- cgit v1.2.3-70-g09d2 From 35058687912aa2f0b4554383cc10be4e0683b9a4 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Thu, 24 Aug 2006 19:10:20 +1000 Subject: [CRYPTO] users: Use crypto_hash interface instead of crypto_digest This patch converts all remaining crypto_digest users to use the new crypto_hash interface. Signed-off-by: Herbert Xu --- drivers/md/dm-crypt.c | 30 ++++++++++++++------------- drivers/net/ppp_mppe.c | 34 ++++++++++++++++++++----------- fs/nfsd/nfs4recover.c | 21 ++++++++++--------- net/ieee80211/ieee80211_crypt_tkip.c | 25 +++++++++++++---------- net/sunrpc/auth_gss/gss_krb5_crypto.c | 38 ++++++++++++++++++++++------------- security/seclvl.c | 18 +++++++++-------- 6 files changed, 97 insertions(+), 69 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 91d4081cb00..73f8be837a4 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -122,7 +122,8 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti, const char *opts) { struct crypto_cipher *essiv_tfm; - struct crypto_tfm *hash_tfm; + struct crypto_hash *hash_tfm; + struct hash_desc desc; struct scatterlist sg; unsigned int saltsize; u8 *salt; @@ -134,29 +135,30 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti, } /* Hash the cipher key with the given hash algorithm */ - hash_tfm = crypto_alloc_tfm(opts, CRYPTO_TFM_REQ_MAY_SLEEP); - if (hash_tfm == NULL) { + hash_tfm = crypto_alloc_hash(opts, 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(hash_tfm)) { ti->error = "Error initializing ESSIV hash"; - return -EINVAL; - } - - if (crypto_tfm_alg_type(hash_tfm) != CRYPTO_ALG_TYPE_DIGEST) { - ti->error = "Expected digest algorithm for ESSIV hash"; - crypto_free_tfm(hash_tfm); - return -EINVAL; + return PTR_ERR(hash_tfm); } - saltsize = crypto_tfm_alg_digestsize(hash_tfm); + saltsize = crypto_hash_digestsize(hash_tfm); salt = kmalloc(saltsize, GFP_KERNEL); if (salt == NULL) { ti->error = "Error kmallocing salt storage in ESSIV"; - crypto_free_tfm(hash_tfm); + crypto_free_hash(hash_tfm); return -ENOMEM; } sg_set_buf(&sg, cc->key, cc->key_size); - crypto_digest_digest(hash_tfm, &sg, 1, salt); - crypto_free_tfm(hash_tfm); + desc.tfm = hash_tfm; + desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP; + err = crypto_hash_digest(&desc, &sg, cc->key_size, salt); + crypto_free_hash(hash_tfm); + + if (err) { + ti->error = "Error calculating hash in ESSIV"; + return err; + } /* Setup the essiv_tfm with the given salt */ essiv_tfm = crypto_alloc_cipher(cc->cipher, 0, CRYPTO_ALG_ASYNC); diff --git a/drivers/net/ppp_mppe.c b/drivers/net/ppp_mppe.c index 495d8667419..e7a0eb4fca6 100644 --- a/drivers/net/ppp_mppe.c +++ b/drivers/net/ppp_mppe.c @@ -65,12 +65,13 @@ MODULE_LICENSE("Dual BSD/GPL"); MODULE_ALIAS("ppp-compress-" __stringify(CI_MPPE)); MODULE_VERSION("1.0.2"); -static void +static unsigned int setup_sg(struct scatterlist *sg, const void *address, unsigned int length) { sg[0].page = virt_to_page(address); sg[0].offset = offset_in_page(address); sg[0].length = length; + return length; } #define SHA1_PAD_SIZE 40 @@ -97,7 +98,7 @@ static inline void sha_pad_init(struct sha_pad *shapad) */ struct ppp_mppe_state { struct crypto_blkcipher *arc4; - struct crypto_tfm *sha1; + struct crypto_hash *sha1; unsigned char *sha1_digest; unsigned char master_key[MPPE_MAX_KEY_LEN]; unsigned char session_key[MPPE_MAX_KEY_LEN]; @@ -137,14 +138,21 @@ struct ppp_mppe_state { */ static void get_new_key_from_sha(struct ppp_mppe_state * state, unsigned char *InterimKey) { + struct hash_desc desc; struct scatterlist sg[4]; + unsigned int nbytes; - setup_sg(&sg[0], state->master_key, state->keylen); - setup_sg(&sg[1], sha_pad->sha_pad1, sizeof(sha_pad->sha_pad1)); - setup_sg(&sg[2], state->session_key, state->keylen); - setup_sg(&sg[3], sha_pad->sha_pad2, sizeof(sha_pad->sha_pad2)); + nbytes = setup_sg(&sg[0], state->master_key, state->keylen); + nbytes += setup_sg(&sg[1], sha_pad->sha_pad1, + sizeof(sha_pad->sha_pad1)); + nbytes += setup_sg(&sg[2], state->session_key, state->keylen); + nbytes += setup_sg(&sg[3], sha_pad->sha_pad2, + sizeof(sha_pad->sha_pad2)); - crypto_digest_digest (state->sha1, sg, 4, state->sha1_digest); + desc.tfm = state->sha1; + desc.flags = 0; + + crypto_hash_digest(&desc, sg, nbytes, state->sha1_digest); memcpy(InterimKey, state->sha1_digest, state->keylen); } @@ -204,11 +212,13 @@ static void *mppe_alloc(unsigned char *options, int optlen) goto out_free; } - state->sha1 = crypto_alloc_tfm("sha1", 0); - if (!state->sha1) + state->sha1 = crypto_alloc_hash("sha1", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(state->sha1)) { + state->sha1 = NULL; goto out_free; + } - digestsize = crypto_tfm_alg_digestsize(state->sha1); + digestsize = crypto_hash_digestsize(state->sha1); if (digestsize < MPPE_MAX_KEY_LEN) goto out_free; @@ -233,7 +243,7 @@ static void *mppe_alloc(unsigned char *options, int optlen) if (state->sha1_digest) kfree(state->sha1_digest); if (state->sha1) - crypto_free_tfm(state->sha1); + crypto_free_hash(state->sha1); if (state->arc4) crypto_free_blkcipher(state->arc4); kfree(state); @@ -251,7 +261,7 @@ static void mppe_free(void *arg) if (state->sha1_digest) kfree(state->sha1_digest); if (state->sha1) - crypto_free_tfm(state->sha1); + crypto_free_hash(state->sha1); if (state->arc4) crypto_free_blkcipher(state->arc4); kfree(state); diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c index 06da7506363..e35d7e52fde 100644 --- a/fs/nfsd/nfs4recover.c +++ b/fs/nfsd/nfs4recover.c @@ -33,7 +33,7 @@ * */ - +#include #include #include #include @@ -87,34 +87,35 @@ int nfs4_make_rec_clidname(char *dname, struct xdr_netobj *clname) { struct xdr_netobj cksum; - struct crypto_tfm *tfm; + struct hash_desc desc; struct scatterlist sg[1]; int status = nfserr_resource; dprintk("NFSD: nfs4_make_rec_clidname for %.*s\n", clname->len, clname->data); - tfm = crypto_alloc_tfm("md5", CRYPTO_TFM_REQ_MAY_SLEEP); - if (tfm == NULL) - goto out; - cksum.len = crypto_tfm_alg_digestsize(tfm); + desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP; + desc.tfm = crypto_alloc_hash("md5", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(desc.tfm)) + goto out_no_tfm; + cksum.len = crypto_hash_digestsize(desc.tfm); cksum.data = kmalloc(cksum.len, GFP_KERNEL); if (cksum.data == NULL) goto out; - crypto_digest_init(tfm); sg[0].page = virt_to_page(clname->data); sg[0].offset = offset_in_page(clname->data); sg[0].length = clname->len; - crypto_digest_update(tfm, sg, 1); - crypto_digest_final(tfm, cksum.data); + if (crypto_hash_digest(&desc, sg, sg->length, cksum.data)) + goto out; md5_to_hex(dname, cksum.data); kfree(cksum.data); status = nfs_ok; out: - crypto_free_tfm(tfm); + crypto_free_hash(desc.tfm); +out_no_tfm: return status; } diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c index d60ce9b49b4..407a17495b6 100644 --- a/net/ieee80211/ieee80211_crypt_tkip.c +++ b/net/ieee80211/ieee80211_crypt_tkip.c @@ -54,7 +54,7 @@ struct ieee80211_tkip_data { int key_idx; struct crypto_blkcipher *tfm_arc4; - struct crypto_tfm *tfm_michael; + struct crypto_hash *tfm_michael; /* scratch buffers for virt_to_page() (crypto API) */ u8 rx_hdr[16], tx_hdr[16]; @@ -95,10 +95,12 @@ static void *ieee80211_tkip_init(int key_idx) goto fail; } - priv->tfm_michael = crypto_alloc_tfm("michael_mic", 0); - if (priv->tfm_michael == NULL) { + priv->tfm_michael = crypto_alloc_hash("michael_mic", 0, + CRYPTO_ALG_ASYNC); + if (IS_ERR(priv->tfm_michael)) { printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate " "crypto API michael_mic\n"); + priv->tfm_michael = NULL; goto fail; } @@ -107,7 +109,7 @@ static void *ieee80211_tkip_init(int key_idx) fail: if (priv) { if (priv->tfm_michael) - crypto_free_tfm(priv->tfm_michael); + crypto_free_hash(priv->tfm_michael); if (priv->tfm_arc4) crypto_free_blkcipher(priv->tfm_arc4); kfree(priv); @@ -120,7 +122,7 @@ static void ieee80211_tkip_deinit(void *priv) { struct ieee80211_tkip_data *_priv = priv; if (_priv && _priv->tfm_michael) - crypto_free_tfm(_priv->tfm_michael); + crypto_free_hash(_priv->tfm_michael); if (_priv && _priv->tfm_arc4) crypto_free_blkcipher(_priv->tfm_arc4); kfree(priv); @@ -485,6 +487,7 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) static int michael_mic(struct ieee80211_tkip_data *tkey, u8 * key, u8 * hdr, u8 * data, size_t data_len, u8 * mic) { + struct hash_desc desc; struct scatterlist sg[2]; if (tkey->tfm_michael == NULL) { @@ -499,12 +502,12 @@ static int michael_mic(struct ieee80211_tkip_data *tkey, u8 * key, u8 * hdr, sg[1].offset = offset_in_page(data); sg[1].length = data_len; - crypto_digest_init(tkey->tfm_michael); - crypto_digest_setkey(tkey->tfm_michael, key, 8); - crypto_digest_update(tkey->tfm_michael, sg, 2); - crypto_digest_final(tkey->tfm_michael, mic); + if (crypto_hash_setkey(tkey->tfm_michael, key, 8)) + return -1; - return 0; + desc.tfm = tkey->tfm_michael; + desc.flags = 0; + return crypto_hash_digest(&desc, sg, data_len + 16, mic); } static void michael_mic_hdr(struct sk_buff *skb, u8 * hdr) @@ -628,7 +631,7 @@ static int ieee80211_tkip_set_key(void *key, int len, u8 * seq, void *priv) { struct ieee80211_tkip_data *tkey = priv; int keyidx; - struct crypto_tfm *tfm = tkey->tfm_michael; + struct crypto_hash *tfm = tkey->tfm_michael; struct crypto_blkcipher *tfm2 = tkey->tfm_arc4; keyidx = tkey->key_idx; diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c index 57192dfe306..e11a40b25cc 100644 --- a/net/sunrpc/auth_gss/gss_krb5_crypto.c +++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c @@ -34,6 +34,7 @@ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ +#include #include #include #include @@ -199,11 +200,9 @@ out: static int checksummer(struct scatterlist *sg, void *data) { - struct crypto_tfm *tfm = (struct crypto_tfm *)data; + struct hash_desc *desc = data; - crypto_digest_update(tfm, sg, 1); - - return 0; + return crypto_hash_update(desc, sg, sg->length); } /* checksum the plaintext data and hdrlen bytes of the token header */ @@ -212,8 +211,9 @@ make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body, int body_offset, struct xdr_netobj *cksum) { char *cksumname; - struct crypto_tfm *tfm = NULL; /* XXX add to ctx? */ + struct hash_desc desc; /* XXX add to ctx? */ struct scatterlist sg[1]; + int err; switch (cksumtype) { case CKSUMTYPE_RSA_MD5: @@ -224,18 +224,28 @@ make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body, " unsupported checksum %d", cksumtype); return GSS_S_FAILURE; } - if (!(tfm = crypto_alloc_tfm(cksumname, CRYPTO_TFM_REQ_MAY_SLEEP))) + desc.tfm = crypto_alloc_hash(cksumname, 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(desc.tfm)) return GSS_S_FAILURE; - cksum->len = crypto_tfm_alg_digestsize(tfm); + cksum->len = crypto_hash_digestsize(desc.tfm); + desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP; - crypto_digest_init(tfm); + err = crypto_hash_init(&desc); + if (err) + goto out; sg_set_buf(sg, header, hdrlen); - crypto_digest_update(tfm, sg, 1); - process_xdr_buf(body, body_offset, body->len - body_offset, - checksummer, tfm); - crypto_digest_final(tfm, cksum->data); - crypto_free_tfm(tfm); - return 0; + err = crypto_hash_update(&desc, sg, hdrlen); + if (err) + goto out; + err = process_xdr_buf(body, body_offset, body->len - body_offset, + checksummer, &desc); + if (err) + goto out; + err = crypto_hash_final(&desc, cksum->data); + +out: + crypto_free_hash(desc.tfm); + return err ? GSS_S_FAILURE : 0; } EXPORT_SYMBOL(make_checksum); diff --git a/security/seclvl.c b/security/seclvl.c index c26dd7de047..8f6291991fb 100644 --- a/security/seclvl.c +++ b/security/seclvl.c @@ -16,6 +16,7 @@ * (at your option) any later version. */ +#include #include #include #include @@ -197,26 +198,27 @@ static unsigned char hashedPassword[SHA1_DIGEST_SIZE]; static int plaintext_to_sha1(unsigned char *hash, const char *plaintext, unsigned int len) { - struct crypto_tfm *tfm; + struct hash_desc desc; struct scatterlist sg; + int err; + if (len > PAGE_SIZE) { seclvl_printk(0, KERN_ERR, "Plaintext password too large (%d " "characters). Largest possible is %lu " "bytes.\n", len, PAGE_SIZE); return -EINVAL; } - tfm = crypto_alloc_tfm("sha1", CRYPTO_TFM_REQ_MAY_SLEEP); - if (tfm == NULL) { + desc.tfm = crypto_alloc_hash("sha1", 0, CRYPTO_ALG_ASYNC); + if (IS_ERR(desc.tfm)) { seclvl_printk(0, KERN_ERR, "Failed to load transform for SHA1\n"); return -EINVAL; } sg_init_one(&sg, (u8 *)plaintext, len); - crypto_digest_init(tfm); - crypto_digest_update(tfm, &sg, 1); - crypto_digest_final(tfm, hash); - crypto_free_tfm(tfm); - return 0; + desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP; + err = crypto_hash_digest(&desc, &sg, len, hash); + crypto_free_hash(desc.tfm); + return err; } /** -- cgit v1.2.3-70-g09d2 From e4d5b79c661c7cfca9d8d5afd040a295f128d3cb Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sat, 26 Aug 2006 18:12:40 +1000 Subject: [CRYPTO] users: Use crypto_comp and crypto_has_* This patch converts all users to use the new crypto_comp type and the crypto_has_* functions. Signed-off-by: Herbert Xu --- crypto/tcrypt.c | 8 ++++---- drivers/crypto/padlock.c | 6 +++--- drivers/net/ppp_mppe.c | 4 ++-- include/linux/crypto.h | 5 +++++ include/net/ipcomp.h | 5 ++--- net/ipv4/ipcomp.c | 25 +++++++++++++------------ net/ipv6/ipcomp6.c | 25 +++++++++++++------------ net/xfrm/xfrm_algo.c | 27 ++++++++++++++++++--------- 8 files changed, 60 insertions(+), 45 deletions(-) (limited to 'drivers') diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index 840ab8be0b9..83307420d31 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -749,7 +749,7 @@ static void test_deflate(void) { unsigned int i; char result[COMP_BUF_SIZE]; - struct crypto_tfm *tfm; + struct crypto_comp *tfm; struct comp_testvec *tv; unsigned int tsize; @@ -821,7 +821,7 @@ static void test_deflate(void) ilen, dlen); } out: - crypto_free_tfm(tfm); + crypto_free_comp(tfm); } static void test_available(void) @@ -830,8 +830,8 @@ static void test_available(void) while (*name) { printk("alg %s ", *name); - printk((crypto_alg_available(*name, 0)) ? - "found\n" : "not found\n"); + printk(crypto_has_alg(*name, 0, CRYPTO_ALG_ASYNC) ? + "found\n" : "not found\n"); name++; } } diff --git a/drivers/crypto/padlock.c b/drivers/crypto/padlock.c index ce581684f4b..d6d7dd5bb98 100644 --- a/drivers/crypto/padlock.c +++ b/drivers/crypto/padlock.c @@ -26,13 +26,13 @@ static int __init padlock_init(void) { int success = 0; - if (crypto_alg_available("aes-padlock", 0)) + if (crypto_has_cipher("aes-padlock", 0, 0)) success++; - if (crypto_alg_available("sha1-padlock", 0)) + if (crypto_has_hash("sha1-padlock", 0, 0)) success++; - if (crypto_alg_available("sha256-padlock", 0)) + if (crypto_has_hash("sha256-padlock", 0, 0)) success++; if (!success) { diff --git a/drivers/net/ppp_mppe.c b/drivers/net/ppp_mppe.c index e7a0eb4fca6..f3655fd772f 100644 --- a/drivers/net/ppp_mppe.c +++ b/drivers/net/ppp_mppe.c @@ -710,8 +710,8 @@ static struct compressor ppp_mppe = { static int __init ppp_mppe_init(void) { int answer; - if (!(crypto_alg_available("ecb(arc4)", 0) && - crypto_alg_available("sha1", 0))) + if (!(crypto_has_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC) && + crypto_has_hash("sha1", 0, CRYPTO_ALG_ASYNC))) return -ENODEV; sha_pad = kmalloc(sizeof(struct sha_pad), GFP_KERNEL); diff --git a/include/linux/crypto.h b/include/linux/crypto.h index cf91c4c0638..d4f9948b64b 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -928,6 +928,11 @@ static inline int crypto_has_comp(const char *alg_name, u32 type, u32 mask) return crypto_has_alg(alg_name, type, mask); } +static inline const char *crypto_comp_name(struct crypto_comp *tfm) +{ + return crypto_tfm_alg_name(crypto_comp_tfm(tfm)); +} + static inline struct compress_tfm *crypto_comp_crt(struct crypto_comp *tfm) { return &crypto_comp_tfm(tfm)->crt_compress; diff --git a/include/net/ipcomp.h b/include/net/ipcomp.h index b94e3047b4d..87c1af3e5e8 100644 --- a/include/net/ipcomp.h +++ b/include/net/ipcomp.h @@ -1,15 +1,14 @@ #ifndef _NET_IPCOMP_H #define _NET_IPCOMP_H +#include #include #define IPCOMP_SCRATCH_SIZE 65400 -struct crypto_tfm; - struct ipcomp_data { u16 threshold; - struct crypto_tfm **tfms; + struct crypto_comp **tfms; }; #endif diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c index a0c28b2b756..5bb9c9f03fb 100644 --- a/net/ipv4/ipcomp.c +++ b/net/ipv4/ipcomp.c @@ -32,7 +32,7 @@ struct ipcomp_tfms { struct list_head list; - struct crypto_tfm **tfms; + struct crypto_comp **tfms; int users; }; @@ -46,7 +46,7 @@ static int ipcomp_decompress(struct xfrm_state *x, struct sk_buff *skb) int err, plen, dlen; struct ipcomp_data *ipcd = x->data; u8 *start, *scratch; - struct crypto_tfm *tfm; + struct crypto_comp *tfm; int cpu; plen = skb->len; @@ -107,7 +107,7 @@ static int ipcomp_compress(struct xfrm_state *x, struct sk_buff *skb) struct iphdr *iph = skb->nh.iph; struct ipcomp_data *ipcd = x->data; u8 *start, *scratch; - struct crypto_tfm *tfm; + struct crypto_comp *tfm; int cpu; ihlen = iph->ihl * 4; @@ -302,7 +302,7 @@ static void **ipcomp_alloc_scratches(void) return scratches; } -static void ipcomp_free_tfms(struct crypto_tfm **tfms) +static void ipcomp_free_tfms(struct crypto_comp **tfms) { struct ipcomp_tfms *pos; int cpu; @@ -324,28 +324,28 @@ static void ipcomp_free_tfms(struct crypto_tfm **tfms) return; for_each_possible_cpu(cpu) { - struct crypto_tfm *tfm = *per_cpu_ptr(tfms, cpu); - crypto_free_tfm(tfm); + struct crypto_comp *tfm = *per_cpu_ptr(tfms, cpu); + crypto_free_comp(tfm); } free_percpu(tfms); } -static struct crypto_tfm **ipcomp_alloc_tfms(const char *alg_name) +static struct crypto_comp **ipcomp_alloc_tfms(const char *alg_name) { struct ipcomp_tfms *pos; - struct crypto_tfm **tfms; + struct crypto_comp **tfms; int cpu; /* This can be any valid CPU ID so we don't need locking. */ cpu = raw_smp_processor_id(); list_for_each_entry(pos, &ipcomp_tfms_list, list) { - struct crypto_tfm *tfm; + struct crypto_comp *tfm; tfms = pos->tfms; tfm = *per_cpu_ptr(tfms, cpu); - if (!strcmp(crypto_tfm_alg_name(tfm), alg_name)) { + if (!strcmp(crypto_comp_name(tfm), alg_name)) { pos->users++; return tfms; } @@ -359,12 +359,13 @@ static struct crypto_tfm **ipcomp_alloc_tfms(const char *alg_name) INIT_LIST_HEAD(&pos->list); list_add(&pos->list, &ipcomp_tfms_list); - pos->tfms = tfms = alloc_percpu(struct crypto_tfm *); + pos->tfms = tfms = alloc_percpu(struct crypto_comp *); if (!tfms) goto error; for_each_possible_cpu(cpu) { - struct crypto_tfm *tfm = crypto_alloc_tfm(alg_name, 0); + struct crypto_comp *tfm = crypto_alloc_comp(alg_name, 0, + CRYPTO_ALG_ASYNC); if (!tfm) goto error; *per_cpu_ptr(tfms, cpu) = tfm; diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c index 7e4d1c17bfb..a81e9e9d93b 100644 --- a/net/ipv6/ipcomp6.c +++ b/net/ipv6/ipcomp6.c @@ -53,7 +53,7 @@ struct ipcomp6_tfms { struct list_head list; - struct crypto_tfm **tfms; + struct crypto_comp **tfms; int users; }; @@ -70,7 +70,7 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb) int plen, dlen; struct ipcomp_data *ipcd = x->data; u8 *start, *scratch; - struct crypto_tfm *tfm; + struct crypto_comp *tfm; int cpu; if (skb_linearize_cow(skb)) @@ -129,7 +129,7 @@ static int ipcomp6_output(struct xfrm_state *x, struct sk_buff *skb) struct ipcomp_data *ipcd = x->data; int plen, dlen; u8 *start, *scratch; - struct crypto_tfm *tfm; + struct crypto_comp *tfm; int cpu; hdr_len = skb->h.raw - skb->data; @@ -301,7 +301,7 @@ static void **ipcomp6_alloc_scratches(void) return scratches; } -static void ipcomp6_free_tfms(struct crypto_tfm **tfms) +static void ipcomp6_free_tfms(struct crypto_comp **tfms) { struct ipcomp6_tfms *pos; int cpu; @@ -323,28 +323,28 @@ static void ipcomp6_free_tfms(struct crypto_tfm **tfms) return; for_each_possible_cpu(cpu) { - struct crypto_tfm *tfm = *per_cpu_ptr(tfms, cpu); - crypto_free_tfm(tfm); + struct crypto_comp *tfm = *per_cpu_ptr(tfms, cpu); + crypto_free_comp(tfm); } free_percpu(tfms); } -static struct crypto_tfm **ipcomp6_alloc_tfms(const char *alg_name) +static struct crypto_comp **ipcomp6_alloc_tfms(const char *alg_name) { struct ipcomp6_tfms *pos; - struct crypto_tfm **tfms; + struct crypto_comp **tfms; int cpu; /* This can be any valid CPU ID so we don't need locking. */ cpu = raw_smp_processor_id(); list_for_each_entry(pos, &ipcomp6_tfms_list, list) { - struct crypto_tfm *tfm; + struct crypto_comp *tfm; tfms = pos->tfms; tfm = *per_cpu_ptr(tfms, cpu); - if (!strcmp(crypto_tfm_alg_name(tfm), alg_name)) { + if (!strcmp(crypto_comp_name(tfm), alg_name)) { pos->users++; return tfms; } @@ -358,12 +358,13 @@ static struct crypto_tfm **ipcomp6_alloc_tfms(const char *alg_name) INIT_LIST_HEAD(&pos->list); list_add(&pos->list, &ipcomp6_tfms_list); - pos->tfms = tfms = alloc_percpu(struct crypto_tfm *); + pos->tfms = tfms = alloc_percpu(struct crypto_comp *); if (!tfms) goto error; for_each_possible_cpu(cpu) { - struct crypto_tfm *tfm = crypto_alloc_tfm(alg_name, 0); + struct crypto_comp *tfm = crypto_alloc_comp(alg_name, 0, + CRYPTO_ALG_ASYNC); if (!tfm) goto error; *per_cpu_ptr(tfms, cpu) = tfm; diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c index 87918f281bb..5a0dbeb6bbe 100644 --- a/net/xfrm/xfrm_algo.c +++ b/net/xfrm/xfrm_algo.c @@ -363,8 +363,8 @@ struct xfrm_algo_desc *xfrm_calg_get_byid(int alg_id) EXPORT_SYMBOL_GPL(xfrm_calg_get_byid); static struct xfrm_algo_desc *xfrm_get_byname(struct xfrm_algo_desc *list, - int entries, char *name, - int probe) + int entries, u32 type, u32 mask, + char *name, int probe) { int i, status; @@ -382,7 +382,7 @@ static struct xfrm_algo_desc *xfrm_get_byname(struct xfrm_algo_desc *list, if (!probe) break; - status = crypto_alg_available(name, 0); + status = crypto_has_alg(name, type, mask | CRYPTO_ALG_ASYNC); if (!status) break; @@ -394,19 +394,25 @@ static struct xfrm_algo_desc *xfrm_get_byname(struct xfrm_algo_desc *list, struct xfrm_algo_desc *xfrm_aalg_get_byname(char *name, int probe) { - return xfrm_get_byname(aalg_list, aalg_entries(), name, probe); + return xfrm_get_byname(aalg_list, aalg_entries(), + CRYPTO_ALG_TYPE_HASH, CRYPTO_ALG_TYPE_HASH_MASK, + name, probe); } EXPORT_SYMBOL_GPL(xfrm_aalg_get_byname); struct xfrm_algo_desc *xfrm_ealg_get_byname(char *name, int probe) { - return xfrm_get_byname(ealg_list, ealg_entries(), name, probe); + return xfrm_get_byname(ealg_list, ealg_entries(), + CRYPTO_ALG_TYPE_BLKCIPHER, CRYPTO_ALG_TYPE_MASK, + name, probe); } EXPORT_SYMBOL_GPL(xfrm_ealg_get_byname); struct xfrm_algo_desc *xfrm_calg_get_byname(char *name, int probe) { - return xfrm_get_byname(calg_list, calg_entries(), name, probe); + return xfrm_get_byname(calg_list, calg_entries(), + CRYPTO_ALG_TYPE_COMPRESS, CRYPTO_ALG_TYPE_MASK, + name, probe); } EXPORT_SYMBOL_GPL(xfrm_calg_get_byname); @@ -441,19 +447,22 @@ void xfrm_probe_algs(void) BUG_ON(in_softirq()); for (i = 0; i < aalg_entries(); i++) { - status = crypto_alg_available(aalg_list[i].name, 0); + status = crypto_has_hash(aalg_list[i].name, 0, + CRYPTO_ALG_ASYNC); if (aalg_list[i].available != status) aalg_list[i].available = status; } for (i = 0; i < ealg_entries(); i++) { - status = crypto_alg_available(ealg_list[i].name, 0); + status = crypto_has_blkcipher(ealg_list[i].name, 0, + CRYPTO_ALG_ASYNC); if (ealg_list[i].available != status) ealg_list[i].available = status; } for (i = 0; i < calg_entries(); i++) { - status = crypto_alg_available(calg_list[i].name, 0); + status = crypto_has_comp(calg_list[i].name, 0, + CRYPTO_ALG_ASYNC); if (calg_list[i].available != status) calg_list[i].available = status; } -- cgit v1.2.3-70-g09d2 From 6010439f47e6b308c031dad7d99686030ef942dd Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sat, 26 Aug 2006 18:34:10 +1000 Subject: [CRYPTO] padlock: Convert padlock-sha to use crypto_hash This patch converts padlock-sha to use crypto_hash for its fallback. It also changes the fallback selection to use selection by type instead of name. This is done through the new CRYPTO_ALG_NEED_FALLBACK bit, which is set if and only if an algorithm needs a fallback of the same type. Signed-off-by: Herbert Xu --- drivers/crypto/padlock-sha.c | 91 +++++++++++++++++--------------------------- include/linux/crypto.h | 6 +++ 2 files changed, 41 insertions(+), 56 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/padlock-sha.c b/drivers/crypto/padlock-sha.c index b028db61c30..a781fd23b60 100644 --- a/drivers/crypto/padlock-sha.c +++ b/drivers/crypto/padlock-sha.c @@ -12,10 +12,11 @@ * */ +#include +#include #include #include #include -#include #include #include #include @@ -30,28 +31,17 @@ #define SHA256_DIGEST_SIZE 32 #define SHA256_HMAC_BLOCK_SIZE 64 -static char *sha1_fallback = SHA1_DEFAULT_FALLBACK; -static char *sha256_fallback = SHA256_DEFAULT_FALLBACK; - -module_param(sha1_fallback, charp, 0644); -module_param(sha256_fallback, charp, 0644); - -MODULE_PARM_DESC(sha1_fallback, "Fallback driver for SHA1. Default is " - SHA1_DEFAULT_FALLBACK); -MODULE_PARM_DESC(sha256_fallback, "Fallback driver for SHA256. Default is " - SHA256_DEFAULT_FALLBACK); - struct padlock_sha_ctx { char *data; size_t used; int bypass; void (*f_sha_padlock)(const char *in, char *out, int count); - struct crypto_tfm *fallback_tfm; + struct hash_desc fallback; }; static inline struct padlock_sha_ctx *ctx(struct crypto_tfm *tfm) { - return (struct padlock_sha_ctx *)(crypto_tfm_ctx(tfm)); + return crypto_tfm_ctx(tfm); } /* We'll need aligned address on the stack */ @@ -65,14 +55,12 @@ static void padlock_sha_bypass(struct crypto_tfm *tfm) if (ctx(tfm)->bypass) return; - BUG_ON(!ctx(tfm)->fallback_tfm); - - crypto_digest_init(ctx(tfm)->fallback_tfm); + crypto_hash_init(&ctx(tfm)->fallback); if (ctx(tfm)->data && ctx(tfm)->used) { struct scatterlist sg; sg_set_buf(&sg, ctx(tfm)->data, ctx(tfm)->used); - crypto_digest_update(ctx(tfm)->fallback_tfm, &sg, 1); + crypto_hash_update(&ctx(tfm)->fallback, &sg, sg.length); } ctx(tfm)->used = 0; @@ -95,9 +83,8 @@ static void padlock_sha_update(struct crypto_tfm *tfm, if (unlikely(ctx(tfm)->bypass)) { struct scatterlist sg; - BUG_ON(!ctx(tfm)->fallback_tfm); sg_set_buf(&sg, (uint8_t *)data, length); - crypto_digest_update(ctx(tfm)->fallback_tfm, &sg, 1); + crypto_hash_update(&ctx(tfm)->fallback, &sg, length); return; } @@ -160,8 +147,7 @@ static void padlock_do_sha256(const char *in, char *out, int count) static void padlock_sha_final(struct crypto_tfm *tfm, uint8_t *out) { if (unlikely(ctx(tfm)->bypass)) { - BUG_ON(!ctx(tfm)->fallback_tfm); - crypto_digest_final(ctx(tfm)->fallback_tfm, out); + crypto_hash_final(&ctx(tfm)->fallback, out); ctx(tfm)->bypass = 0; return; } @@ -172,8 +158,11 @@ static void padlock_sha_final(struct crypto_tfm *tfm, uint8_t *out) ctx(tfm)->used = 0; } -static int padlock_cra_init(struct crypto_tfm *tfm, const char *fallback_driver_name) +static int padlock_cra_init(struct crypto_tfm *tfm) { + const char *fallback_driver_name = tfm->__crt_alg->cra_name; + struct crypto_hash *fallback_tfm; + /* For now we'll allocate one page. This * could eventually be configurable one day. */ ctx(tfm)->data = (char *)__get_free_page(GFP_KERNEL); @@ -181,14 +170,17 @@ static int padlock_cra_init(struct crypto_tfm *tfm, const char *fallback_driver_ return -ENOMEM; /* Allocate a fallback and abort if it failed. */ - ctx(tfm)->fallback_tfm = crypto_alloc_tfm(fallback_driver_name, 0); - if (!ctx(tfm)->fallback_tfm) { + fallback_tfm = crypto_alloc_hash(fallback_driver_name, 0, + CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK); + if (IS_ERR(fallback_tfm)) { printk(KERN_WARNING PFX "Fallback driver '%s' could not be loaded!\n", fallback_driver_name); free_page((unsigned long)(ctx(tfm)->data)); - return -ENOENT; + return PTR_ERR(fallback_tfm); } + ctx(tfm)->fallback.tfm = fallback_tfm; return 0; } @@ -196,14 +188,14 @@ static int padlock_sha1_cra_init(struct crypto_tfm *tfm) { ctx(tfm)->f_sha_padlock = padlock_do_sha1; - return padlock_cra_init(tfm, sha1_fallback); + return padlock_cra_init(tfm); } static int padlock_sha256_cra_init(struct crypto_tfm *tfm) { ctx(tfm)->f_sha_padlock = padlock_do_sha256; - return padlock_cra_init(tfm, sha256_fallback); + return padlock_cra_init(tfm); } static void padlock_cra_exit(struct crypto_tfm *tfm) @@ -213,16 +205,16 @@ static void padlock_cra_exit(struct crypto_tfm *tfm) ctx(tfm)->data = NULL; } - BUG_ON(!ctx(tfm)->fallback_tfm); - crypto_free_tfm(ctx(tfm)->fallback_tfm); - ctx(tfm)->fallback_tfm = NULL; + crypto_free_hash(ctx(tfm)->fallback.tfm); + ctx(tfm)->fallback.tfm = NULL; } static struct crypto_alg sha1_alg = { .cra_name = "sha1", .cra_driver_name = "sha1-padlock", .cra_priority = PADLOCK_CRA_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_DIGEST, + .cra_flags = CRYPTO_ALG_TYPE_DIGEST | + CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA1_HMAC_BLOCK_SIZE, .cra_ctxsize = sizeof(struct padlock_sha_ctx), .cra_module = THIS_MODULE, @@ -243,7 +235,8 @@ static struct crypto_alg sha256_alg = { .cra_name = "sha256", .cra_driver_name = "sha256-padlock", .cra_priority = PADLOCK_CRA_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_DIGEST, + .cra_flags = CRYPTO_ALG_TYPE_DIGEST | + CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA256_HMAC_BLOCK_SIZE, .cra_ctxsize = sizeof(struct padlock_sha_ctx), .cra_module = THIS_MODULE, @@ -262,29 +255,15 @@ static struct crypto_alg sha256_alg = { static void __init padlock_sha_check_fallbacks(void) { - struct crypto_tfm *tfm; - - /* We'll try to allocate one TFM for each fallback - * to test that the modules are available. */ - tfm = crypto_alloc_tfm(sha1_fallback, 0); - if (!tfm) { - printk(KERN_WARNING PFX "Couldn't load fallback module for '%s'. Tried '%s'.\n", - sha1_alg.cra_name, sha1_fallback); - } else { - printk(KERN_NOTICE PFX "Fallback for '%s' is driver '%s' (prio=%d)\n", sha1_alg.cra_name, - crypto_tfm_alg_driver_name(tfm), crypto_tfm_alg_priority(tfm)); - crypto_free_tfm(tfm); - } - - tfm = crypto_alloc_tfm(sha256_fallback, 0); - if (!tfm) { - printk(KERN_WARNING PFX "Couldn't load fallback module for '%s'. Tried '%s'.\n", - sha256_alg.cra_name, sha256_fallback); - } else { - printk(KERN_NOTICE PFX "Fallback for '%s' is driver '%s' (prio=%d)\n", sha256_alg.cra_name, - crypto_tfm_alg_driver_name(tfm), crypto_tfm_alg_priority(tfm)); - crypto_free_tfm(tfm); - } + if (!crypto_has_hash("sha1", 0, CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK)) + printk(KERN_WARNING PFX + "Couldn't load fallback module for sha1.\n"); + + if (!crypto_has_hash("sha256", 0, CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK)) + printk(KERN_WARNING PFX + "Couldn't load fallback module for sha256.\n"); } static int __init padlock_init(void) diff --git a/include/linux/crypto.h b/include/linux/crypto.h index d4f9948b64b..187c6ea9195 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -42,6 +42,12 @@ #define CRYPTO_ALG_DYING 0x00000040 #define CRYPTO_ALG_ASYNC 0x00000080 +/* + * Set this bit if and only if the algorithm requires another algorithm of + * the same type to handle corner cases. + */ +#define CRYPTO_ALG_NEED_FALLBACK 0x00000100 + /* * Transform masks and values (for crt_flags). */ -- cgit v1.2.3-70-g09d2 From 3c164bd8153c4644a22dc2101b003c67cd2a0d0a Mon Sep 17 00:00:00 2001 From: Rik Snel Date: Sat, 2 Sep 2006 18:17:33 +1000 Subject: [BLOCK] dm-crypt: trivial comment improvements Just some minor comment nits. - little-endian is better than low-endian - and since it is called essiv everywere it should also be essiv in the comments (and not ess_iv) Signed-off-by: Rik Snel Signed-off-by: Herbert Xu --- drivers/md/dm-crypt.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 73f8be837a4..bdbd34993a8 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -99,12 +99,12 @@ static kmem_cache_t *_crypt_io_pool; /* * Different IV generation algorithms: * - * plain: the initial vector is the 32-bit low-endian version of the sector + * plain: the initial vector is the 32-bit little-endian version of the sector * number, padded with zeros if neccessary. * - * ess_iv: "encrypted sector|salt initial vector", the sector number is - * encrypted with the bulk cipher using a salt as key. The salt - * should be derived from the bulk cipher's key via hashing. + * essiv: "encrypted sector|salt initial vector", the sector number is + * encrypted with the bulk cipher using a salt as key. The salt + * should be derived from the bulk cipher's key via hashing. * * plumb: unimplemented, see: * http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/454 -- cgit v1.2.3-70-g09d2 From 8ce90907ea534f10075a9eba5f83d6dd77b39cb6 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Thu, 21 Sep 2006 00:06:21 -0400 Subject: [netdrvr] lp486e: fix typo inside #if 0'd code, but it bugged me. Really, we should probably just delete the driver. Signed-off-by: Jeff Garzik --- drivers/net/lp486e.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/lp486e.c b/drivers/net/lp486e.c index b783a6984ab..393aba95cf1 100644 --- a/drivers/net/lp486e.c +++ b/drivers/net/lp486e.c @@ -442,16 +442,16 @@ init_rx_bufs(struct net_device *dev, int num) { if (rbd) { rbd->pad = 0; rbd->count = 0; - rbd->skb = dev_alloc_skb(RX_SKB_SIZE); + rbd->skb = dev_alloc_skb(RX_SKBSIZE); if (!rbd->skb) { printk("dev_alloc_skb failed"); } rbd->next = rfd->rbd; if (i) { rfd->rbd->prev = rbd; - rbd->size = RX_SKB_SIZE; + rbd->size = RX_SKBSIZE; } else { - rbd->size = (RX_SKB_SIZE | RBD_EL); + rbd->size = (RX_SKBSIZE | RBD_EL); lp->rbd_tail = rbd; } -- cgit v1.2.3-70-g09d2 From 54caf44da31995df1f51174468fd9e83ca5c67a2 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Thu, 21 Sep 2006 00:08:10 -0400 Subject: [netdrvr] mv643xx_eth: fix obvious typo, which caused build breakage The last minute fix submitted by the author fixed a bug, but broke the driver build. Noticed by Al Viro, since I can't build on said platform. Signed-off-by: Jeff Garzik --- drivers/net/mv643xx_eth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index eeab1df5bef..59de3e74d2d 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -385,7 +385,7 @@ static int mv643xx_eth_receive_queue(struct net_device *dev, int budget) struct pkt_info pkt_info; while (budget-- > 0 && eth_port_receive(mp, &pkt_info) == ETH_OK) { - dma_unmap_single(NULL, pkt_info.buf_ptr, RX_SKB_SIZE, + dma_unmap_single(NULL, pkt_info.buf_ptr, ETH_RX_SKB_SIZE, DMA_FROM_DEVICE); mp->rx_desc_count--; received_packets++; -- cgit v1.2.3-70-g09d2 From 69917c26c840e7de94522bf90fb190de63bf92bd Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 22 Sep 2006 12:56:30 +1000 Subject: [POWERPC] Fix ohare IDE irq workaround on old powermacs Looks like a workaround for old bogus OF bitrot... This fixes it and hence fixes boot on some performa machines. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- drivers/ide/ppc/pmac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index fa46856e806..996c694341b 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -1326,7 +1326,7 @@ pmac_ide_macio_attach(struct macio_dev *mdev, const struct of_device_id *match) if (macio_irq_count(mdev) == 0) { printk(KERN_WARNING "ide%d: no intrs for device %s, using 13\n", i, mdev->ofdev.node->full_name); - irq = 13; + irq = irq_create_mapping(NULL, 13); } else irq = macio_irq(mdev, 0); -- cgit v1.2.3-70-g09d2 From 187ef15268e638603dea55a91fdfa29feaed6d13 Mon Sep 17 00:00:00 2001 From: Håvard Skinnemoen Date: Fri, 22 Sep 2006 10:07:08 +0100 Subject: [MTD] Unlock NOR flash automatically where necessary MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Introduce the MTD_STUPID_LOCK flag which indicates that the flash chip is always locked after power-up, so all sectors need to be unlocked before it is usable. If this flag is set, and the chip provides an unlock() operation, mtd_add_device will unlock the whole MTD device if it's writeable. This means that non-writeable partitions will stay locked. Set MTD_STUPID_LOCK in fixup_use_atmel_lock() so that these chips will work as expected. Signed-off-by: Håvard Skinnemoen Signed-off-by: Andrew Morton Signed-off-by: David Woodhouse --- drivers/mtd/chips/cfi_cmdset_0002.c | 1 + drivers/mtd/mtdcore.c | 10 ++++++++++ include/mtd/mtd-abi.h | 1 + 3 files changed, 12 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index a482e8922de..702ae4cd869 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -212,6 +212,7 @@ static void fixup_use_atmel_lock(struct mtd_info *mtd, void *param) { mtd->lock = cfi_atmel_lock; mtd->unlock = cfi_atmel_unlock; + mtd->flags |= MTD_STUPID_LOCK; } static struct cfi_fixup cfi_fixup_table[] = { diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 168d3ba063c..c4d26de7434 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -57,6 +57,16 @@ int add_mtd_device(struct mtd_info *mtd) mtd->index = i; mtd->usecount = 0; + /* Some chips always power up locked. Unlock them now */ + if ((mtd->flags & MTD_WRITEABLE) + && (mtd->flags & MTD_STUPID_LOCK) && mtd->unlock) { + if (mtd->unlock(mtd, 0, mtd->size)) + printk(KERN_WARNING + "%s: unlock failed, " + "writes may not work\n", + mtd->name); + } + DEBUG(0, "mtd: Giving out device %d to %s\n",i, mtd->name); /* No need to get a refcount on the module containing the notifier, since we hold the mtd_table_mutex */ diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h index 1da3f7fa799..b0a67b7ffdc 100644 --- a/include/mtd/mtd-abi.h +++ b/include/mtd/mtd-abi.h @@ -34,6 +34,7 @@ struct mtd_oob_buf { #define MTD_WRITEABLE 0x400 /* Device is writeable */ #define MTD_BIT_WRITEABLE 0x800 /* Single bits can be flipped */ #define MTD_NO_ERASE 0x1000 /* No erase necessary */ +#define MTD_STUPID_LOCK 0x2000 /* Always locked after reset */ // Some common devices / combinations of capabilities #define MTD_CAP_ROM 0 -- cgit v1.2.3-70-g09d2 From cbc88ba83ff772d8c47d95ba0fef38ad888d6fcf Mon Sep 17 00:00:00 2001 From: Michal Piotrowski Date: Fri, 22 Sep 2006 10:09:44 +0100 Subject: [MTD NAND] Remove old code in au1550nd.c Signed-off-by: Michal Piotrowski Signed-off-by: Andrew Morton Signed-off-by: David Woodhouse --- drivers/mtd/nand/au1550nd.c | 11 ----------- 1 file changed, 11 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index 31228334da1..09e421a9689 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -21,18 +21,7 @@ #include #include -/* fixme: this is ugly */ -#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 0) #include -#else -#include -#ifdef CONFIG_MIPS_PB1550 -#include -#endif -#ifdef CONFIG_MIPS_DB1550 -#include -#endif -#endif /* * MTD structure for NAND controller -- cgit v1.2.3-70-g09d2 From f40a6f1cc7fe522e51e1ac4c7ab3035a434f2cef Mon Sep 17 00:00:00 2001 From: Brian Walsh Date: Fri, 22 Sep 2006 10:16:16 +0100 Subject: [MTD] Fix ixp4xx partition parsing. If the amount of flash is not divisible by 2 then the mask in parse_mtd_partitions would fail to work as designed. Passing in the base address corrects this problem. Signed-off-by: Brian Walsh Cc: Deepak Sanexa Cc: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: David Woodhouse --- drivers/mtd/maps/ixp4xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c index 986c5862839..7a828e3e644 100644 --- a/drivers/mtd/maps/ixp4xx.c +++ b/drivers/mtd/maps/ixp4xx.c @@ -253,7 +253,7 @@ static int ixp4xx_flash_probe(struct platform_device *dev) /* Use the fast version */ info->map.write = ixp4xx_write16, - err = parse_mtd_partitions(info->mtd, probes, &info->partitions, 0); + err = parse_mtd_partitions(info->mtd, probes, &info->partitions, dev->resource->start); if (err > 0) { err = add_mtd_partitions(info->mtd, info->partitions, err); if(err) -- cgit v1.2.3-70-g09d2 From 668040fcd1e06fc3e68a92708cbdfa5a52c37d3c Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 22 Sep 2006 10:17:28 +0100 Subject: [MTD] blkdev helper code: fix printk format warning Fix printk format warning(s): drivers/mtd/mtd_blkdevs.c:72: warning: long int format, different type arg (arg 2) Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: David Woodhouse --- drivers/mtd/mtd_blkdevs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 458d3c8ae1e..302bed5f084 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -69,7 +69,7 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr, return 1; default: - printk(KERN_NOTICE "Unknown request %ld\n", rq_data_dir(req)); + printk(KERN_NOTICE "Unknown request %d\n", rq_data_dir(req)); return 0; } } -- cgit v1.2.3-70-g09d2 From dd8e9ed6ed544e2b924429d29cd2a6b55590109b Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Fri, 22 Sep 2006 10:19:20 +0100 Subject: [MTD] Switch to pci_get_device and do ref counting Signed-off-by: Alan Cox Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: David Woodhouse --- drivers/mtd/devices/pmc551.c | 11 ++++++++++- drivers/mtd/maps/amd76xrom.c | 5 +++-- drivers/mtd/maps/ichxrom.c | 3 ++- drivers/mtd/maps/l440gx.c | 12 ++++++++++-- drivers/mtd/maps/scx200_docflash.c | 9 +++++++-- 5 files changed, 32 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c index 2c014970873..a03a8a79e5c 100644 --- a/drivers/mtd/devices/pmc551.c +++ b/drivers/mtd/devices/pmc551.c @@ -674,7 +674,7 @@ static int __init init_pmc551(void) */ for( count = 0; count < MAX_MTD_DEVICES; count++ ) { - if ((PCI_Device = pci_find_device(PCI_VENDOR_ID_V3_SEMI, + if ((PCI_Device = pci_get_device(PCI_VENDOR_ID_V3_SEMI, PCI_DEVICE_ID_V3_SEMI_V370PDC, PCI_Device ) ) == NULL) { break; @@ -783,6 +783,10 @@ static int __init init_pmc551(void) kfree(mtd); break; } + + /* Keep a reference as the add_mtd_device worked */ + pci_dev_get(PCI_Device); + printk(KERN_NOTICE "Registered pmc551 memory device.\n"); printk(KERN_NOTICE "Mapped %dM of memory from 0x%p to 0x%p\n", priv->asize>>20, @@ -797,6 +801,10 @@ static int __init init_pmc551(void) found++; } + /* Exited early, reference left over */ + if (PCI_Device) + pci_dev_put(PCI_Device); + if( !pmc551list ) { printk(KERN_NOTICE "pmc551: not detected\n"); return -ENODEV; @@ -824,6 +832,7 @@ static void __exit cleanup_pmc551(void) priv->asize>>20, priv->start); iounmap (priv->start); } + pci_dev_put(priv->dev); kfree (mtd->priv); del_mtd_device (mtd); diff --git a/drivers/mtd/maps/amd76xrom.c b/drivers/mtd/maps/amd76xrom.c index 447955be18a..797caffb20b 100644 --- a/drivers/mtd/maps/amd76xrom.c +++ b/drivers/mtd/maps/amd76xrom.c @@ -57,6 +57,7 @@ static void amd76xrom_cleanup(struct amd76xrom_window *window) /* Disable writes through the rom window */ pci_read_config_byte(window->pdev, 0x40, &byte); pci_write_config_byte(window->pdev, 0x40, byte & ~1); + pci_dev_put(window->pdev); } /* Free all of the mtd devices */ @@ -91,7 +92,7 @@ static int __devinit amd76xrom_init_one (struct pci_dev *pdev, struct amd76xrom_map_info *map = NULL; unsigned long map_top; - /* Remember the pci dev I find the window in */ + /* Remember the pci dev I find the window in - already have a ref */ window->pdev = pdev; /* Assume the rom window is properly setup, and find it's size */ @@ -302,7 +303,7 @@ static int __init init_amd76xrom(void) struct pci_device_id *id; pdev = NULL; for(id = amd76xrom_pci_tbl; id->vendor; id++) { - pdev = pci_find_device(id->vendor, id->device, NULL); + pdev = pci_get_device(id->vendor, id->device, NULL); if (pdev) { break; } diff --git a/drivers/mtd/maps/ichxrom.c b/drivers/mtd/maps/ichxrom.c index db4b570d874..2bb3e63606e 100644 --- a/drivers/mtd/maps/ichxrom.c +++ b/drivers/mtd/maps/ichxrom.c @@ -61,6 +61,7 @@ static void ichxrom_cleanup(struct ichxrom_window *window) /* Disable writes through the rom window */ pci_read_config_word(window->pdev, BIOS_CNTL, &word); pci_write_config_word(window->pdev, BIOS_CNTL, word & ~1); + pci_dev_put(window->pdev); /* Free all of the mtd devices */ list_for_each_entry_safe(map, scratch, &window->maps, list) { @@ -355,7 +356,7 @@ static int __init init_ichxrom(void) pdev = NULL; for (id = ichxrom_pci_tbl; id->vendor; id++) { - pdev = pci_find_device(id->vendor, id->device, NULL); + pdev = pci_get_device(id->vendor, id->device, NULL); if (pdev) { break; } diff --git a/drivers/mtd/maps/l440gx.c b/drivers/mtd/maps/l440gx.c index 6b784ef5ee7..67620adf481 100644 --- a/drivers/mtd/maps/l440gx.c +++ b/drivers/mtd/maps/l440gx.c @@ -61,14 +61,17 @@ static int __init init_l440gx(void) struct resource *pm_iobase; __u16 word; - dev = pci_find_device(PCI_VENDOR_ID_INTEL, + dev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_0, NULL); - pm_dev = pci_find_device(PCI_VENDOR_ID_INTEL, + pm_dev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, NULL); + pci_dev_put(dev); + if (!dev || !pm_dev) { printk(KERN_NOTICE "L440GX flash mapping: failed to find PIIX4 ISA bridge, cannot continue\n"); + pci_dev_put(pm_dev); return -ENODEV; } @@ -76,6 +79,7 @@ static int __init init_l440gx(void) if (!l440gx_map.virt) { printk(KERN_WARNING "Failed to ioremap L440GX flash region\n"); + pci_dev_put(pm_dev); return -ENOMEM; } simple_map_init(&l440gx_map); @@ -99,8 +103,12 @@ static int __init init_l440gx(void) pm_iobase->start += iobase & ~1; pm_iobase->end += iobase & ~1; + pci_dev_put(pm_dev); + /* Allocate the resource region */ if (pci_assign_resource(pm_dev, PIIXE_IOBASE_RESOURCE) != 0) { + pci_dev_put(dev); + pci_dev_put(pm_dev); printk(KERN_WARNING "Could not allocate pm iobase resource\n"); iounmap(l440gx_map.virt); return -ENXIO; diff --git a/drivers/mtd/maps/scx200_docflash.c b/drivers/mtd/maps/scx200_docflash.c index 7391fd544e8..5e2bce22f37 100644 --- a/drivers/mtd/maps/scx200_docflash.c +++ b/drivers/mtd/maps/scx200_docflash.c @@ -87,19 +87,23 @@ static int __init init_scx200_docflash(void) printk(KERN_DEBUG NAME ": NatSemi SCx200 DOCCS Flash Driver\n"); - if ((bridge = pci_find_device(PCI_VENDOR_ID_NS, + if ((bridge = pci_get_device(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SCx200_BRIDGE, NULL)) == NULL) return -ENODEV; /* check that we have found the configuration block */ - if (!scx200_cb_present()) + if (!scx200_cb_present()) { + pci_dev_put(bridge); return -ENODEV; + } if (probe) { /* Try to use the present flash mapping if any */ pci_read_config_dword(bridge, SCx200_DOCCS_BASE, &base); pci_read_config_dword(bridge, SCx200_DOCCS_CTRL, &ctrl); + pci_dev_put(bridge); + pmr = inl(scx200_cb_base + SCx200_PMR); if (base == 0 @@ -127,6 +131,7 @@ static int __init init_scx200_docflash(void) return -ENOMEM; } } else { + pci_dev_put(bridge); for (u = size; u > 1; u >>= 1) ; if (u != 1) { -- cgit v1.2.3-70-g09d2 From 25f0c659fe64832d8ee06aa623fffaad708dcf8b Mon Sep 17 00:00:00 2001 From: Amol Lad Date: Thu, 21 Sep 2006 18:12:43 +0530 Subject: ioremap balanced with iounmap for drivers/mtd subsystem ioremap must be balanced by an iounmap and failing to do so can result in a memory leak. Tested (compilation only) with: - allmodconfig - Modifying drivers/mtd/maps/Kconfig and drivers/mtd/nand/Kconfig to make sure that the changed file is compiling without warning Signed-off-by: Amol Lad Signed-off-by: David Woodhouse --- drivers/mtd/maps/arctic-mtd.c | 14 ++++++++++++-- drivers/mtd/maps/beech-mtd.c | 14 ++++++++++++-- drivers/mtd/maps/cstm_mips_ixx.c | 18 ++++++++++++++++-- drivers/mtd/maps/ebony.c | 4 ++++ drivers/mtd/maps/fortunet.c | 3 +++ drivers/mtd/maps/lasat.c | 2 ++ drivers/mtd/maps/nettel.c | 34 +++++++++++++++++++++++++++------- drivers/mtd/maps/ocotea.c | 4 ++++ drivers/mtd/maps/pcmciamtd.c | 4 ++++ drivers/mtd/maps/redwood.c | 11 ++++++++++- drivers/mtd/maps/sbc8240.c | 11 ++++++++++- drivers/mtd/maps/walnut.c | 4 ++++ drivers/mtd/nand/edb7312.c | 3 +++ drivers/mtd/nand/ppchameleonevb.c | 7 +++++++ include/linux/utsrelease.h | 1 + 15 files changed, 119 insertions(+), 15 deletions(-) create mode 100644 include/linux/utsrelease.h (limited to 'drivers') diff --git a/drivers/mtd/maps/arctic-mtd.c b/drivers/mtd/maps/arctic-mtd.c index d95ae582fbe..642d96bc891 100644 --- a/drivers/mtd/maps/arctic-mtd.c +++ b/drivers/mtd/maps/arctic-mtd.c @@ -96,6 +96,8 @@ static struct mtd_partition arctic_partitions[PARTITIONS] = { static int __init init_arctic_mtd(void) { + int err = 0; + printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR); arctic_mtd_map.virt = ioremap(PADDR, SIZE); @@ -109,12 +111,20 @@ init_arctic_mtd(void) printk("%s: probing %d-bit flash bus\n", NAME, BUSWIDTH * 8); arctic_mtd = do_map_probe("cfi_probe", &arctic_mtd_map); - if (!arctic_mtd) + if (!arctic_mtd) { + iounmap((void *) arctic_mtd_map.virt); return -ENXIO; + } arctic_mtd->owner = THIS_MODULE; - return add_mtd_partitions(arctic_mtd, arctic_partitions, PARTITIONS); + err = add_mtd_partitions(arctic_mtd, arctic_partitions, PARTITIONS); + if (err) { + printk("%s: add_mtd_partitions failed\n", NAME); + iounmap((void *) arctic_mtd_map.virt); + } + + return err; } static void __exit diff --git a/drivers/mtd/maps/beech-mtd.c b/drivers/mtd/maps/beech-mtd.c index 5df7361d140..a64b1a5ab31 100644 --- a/drivers/mtd/maps/beech-mtd.c +++ b/drivers/mtd/maps/beech-mtd.c @@ -72,6 +72,8 @@ static struct mtd_partition beech_partitions[2] = { static int __init init_beech_mtd(void) { + int err = 0; + printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR); beech_mtd_map.virt = ioremap(PADDR, SIZE); @@ -86,12 +88,20 @@ init_beech_mtd(void) printk("%s: probing %d-bit flash bus\n", NAME, BUSWIDTH * 8); beech_mtd = do_map_probe("cfi_probe", &beech_mtd_map); - if (!beech_mtd) + if (!beech_mtd) { + iounmap((void *) beech_mtd_map.virt); return -ENXIO; + } beech_mtd->owner = THIS_MODULE; - return add_mtd_partitions(beech_mtd, beech_partitions, 2); + err = add_mtd_partitions(beech_mtd, beech_partitions, 2); + if (err) { + printk("%s: add_mtd_partitions failed\n", NAME); + iounmap((void *) beech_mtd_map.virt); + } + + return err; } static void __exit diff --git a/drivers/mtd/maps/cstm_mips_ixx.c b/drivers/mtd/maps/cstm_mips_ixx.c index aa56defb94c..d6bef100d69 100644 --- a/drivers/mtd/maps/cstm_mips_ixx.c +++ b/drivers/mtd/maps/cstm_mips_ixx.c @@ -171,7 +171,14 @@ int __init init_cstm_mips_ixx(void) cstm_mips_ixx_map[i].phys = cstm_mips_ixx_board_desc[i].window_addr; cstm_mips_ixx_map[i].virt = ioremap(cstm_mips_ixx_board_desc[i].window_addr, cstm_mips_ixx_board_desc[i].window_size); if (!cstm_mips_ixx_map[i].virt) { + int j = 0; printk(KERN_WARNING "Failed to ioremap\n"); + for (j = 0; j < i; j++) { + if (cstm_mips_ixx_map[j].virt) { + iounmap((void *)cstm_mips_ixx_map[j].virt); + cstm_mips_ixx_map[j].virt = 0; + } + } return -EIO; } cstm_mips_ixx_map[i].name = cstm_mips_ixx_board_desc[i].name; @@ -204,8 +211,15 @@ int __init init_cstm_mips_ixx(void) cstm_mips_ixx_map[i].map_priv_2 = (unsigned long)mymtd; add_mtd_partitions(mymtd, parts, cstm_mips_ixx_board_desc[i].num_partitions); } - else - return -ENXIO; + else { + for (i = 0; i < PHYSMAP_NUMBER; i++) { + if (cstm_mips_ixx_map[i].virt) { + iounmap((void *)cstm_mips_ixx_map[i].virt); + cstm_mips_ixx_map[i].virt = 0; + } + } + return -ENXIO; + } } return 0; } diff --git a/drivers/mtd/maps/ebony.c b/drivers/mtd/maps/ebony.c index 641e1dd8479..1488bb92f26 100644 --- a/drivers/mtd/maps/ebony.c +++ b/drivers/mtd/maps/ebony.c @@ -108,6 +108,7 @@ int __init init_ebony(void) ARRAY_SIZE(ebony_small_partitions)); } else { printk("map probe failed for flash\n"); + iounmap(ebony_small_map.virt); return -ENXIO; } @@ -117,6 +118,7 @@ int __init init_ebony(void) if (!ebony_large_map.virt) { printk("Failed to ioremap flash\n"); + iounmap(ebony_small_map.virt); return -EIO; } @@ -129,6 +131,8 @@ int __init init_ebony(void) ARRAY_SIZE(ebony_large_partitions)); } else { printk("map probe failed for flash\n"); + iounmap(ebony_small_map.virt); + iounmap(ebony_large_map.virt); return -ENXIO; } diff --git a/drivers/mtd/maps/fortunet.c b/drivers/mtd/maps/fortunet.c index c6bf4e1219e..7c50c271651 100644 --- a/drivers/mtd/maps/fortunet.c +++ b/drivers/mtd/maps/fortunet.c @@ -218,8 +218,11 @@ int __init init_fortunet(void) map_regions[ix].map_info.size); if(!map_regions[ix].map_info.virt) { + int j = 0; printk(MTD_FORTUNET_PK "%s flash failed to ioremap!\n", map_regions[ix].map_info.name); + for (j = 0 ; j < ix; j++) + iounmap(map_regions[j].map_info.virt); return -ENXIO; } simple_map_init(&map_regions[ix].map_info); diff --git a/drivers/mtd/maps/lasat.c b/drivers/mtd/maps/lasat.c index 1c13d2dc0cd..e3437632105 100644 --- a/drivers/mtd/maps/lasat.c +++ b/drivers/mtd/maps/lasat.c @@ -79,6 +79,7 @@ static int __init init_lasat(void) return 0; } + iounmap(lasat_map.virt); return -ENXIO; } @@ -89,6 +90,7 @@ static void __exit cleanup_lasat(void) map_destroy(lasat_mtd); } if (lasat_map.virt) { + iounmap(lasat_map.virt); lasat_map.virt = 0; } } diff --git a/drivers/mtd/maps/nettel.c b/drivers/mtd/maps/nettel.c index 0994b5b2e33..198e840ff6d 100644 --- a/drivers/mtd/maps/nettel.c +++ b/drivers/mtd/maps/nettel.c @@ -277,6 +277,7 @@ int __init nettel_init(void) nettel_amd_map.virt = ioremap_nocache(amdaddr, maxsize); if (!nettel_amd_map.virt) { printk("SNAPGEAR: failed to ioremap() BOOTCS\n"); + iounmap(nettel_mmcrp); return(-EIO); } simple_map_init(&nettel_amd_map); @@ -337,7 +338,8 @@ int __init nettel_init(void) nettel_amd_map.virt = NULL; #else /* Only AMD flash supported */ - return(-ENXIO); + rc = -ENXIO; + goto out_unmap2; #endif } @@ -361,14 +363,15 @@ int __init nettel_init(void) nettel_intel_map.virt = ioremap_nocache(intel0addr, maxsize); if (!nettel_intel_map.virt) { printk("SNAPGEAR: failed to ioremap() ROMCS1\n"); - return(-EIO); + rc = -EIO; + goto out_unmap2; } simple_map_init(&nettel_intel_map); intel_mtd = do_map_probe("cfi_probe", &nettel_intel_map); if (!intel_mtd) { - iounmap(nettel_intel_map.virt); - return(-ENXIO); + rc = -ENXIO; + goto out_unmap1; } /* Set PAR to the detected size */ @@ -394,13 +397,14 @@ int __init nettel_init(void) nettel_intel_map.virt = ioremap_nocache(intel0addr, maxsize); if (!nettel_intel_map.virt) { printk("SNAPGEAR: failed to ioremap() ROMCS1/2\n"); - return(-EIO); + rc = -EIO; + goto out_unmap2; } intel_mtd = do_map_probe("cfi_probe", &nettel_intel_map); if (! intel_mtd) { - iounmap((void *) nettel_intel_map.virt); - return(-ENXIO); + rc = -ENXIO; + goto out_unmap1; } intel1size = intel_mtd->size - intel0size; @@ -456,6 +460,18 @@ int __init nettel_init(void) #endif return(rc); + +#ifdef CONFIG_MTD_CFI_INTELEXT +out_unmap1: + iounmap((void *) nettel_intel_map.virt); +#endif + +out_unmap2: + iounmap(nettel_mmcrp); + iounmap(nettel_amd_map.virt); + + return(rc); + } /****************************************************************************/ @@ -469,6 +485,10 @@ void __exit nettel_cleanup(void) del_mtd_partitions(amd_mtd); map_destroy(amd_mtd); } + if (nettel_mmcrp) { + iounmap(nettel_mmcrp); + nettel_mmcrp = NULL; + } if (nettel_amd_map.virt) { iounmap(nettel_amd_map.virt); nettel_amd_map.virt = NULL; diff --git a/drivers/mtd/maps/ocotea.c b/drivers/mtd/maps/ocotea.c index 2f07602ba94..5522eac8c98 100644 --- a/drivers/mtd/maps/ocotea.c +++ b/drivers/mtd/maps/ocotea.c @@ -97,6 +97,7 @@ int __init init_ocotea(void) ARRAY_SIZE(ocotea_small_partitions)); } else { printk("map probe failed for flash\n"); + iounmap(ocotea_small_map.virt); return -ENXIO; } @@ -106,6 +107,7 @@ int __init init_ocotea(void) if (!ocotea_large_map.virt) { printk("Failed to ioremap flash\n"); + iounmap(ocotea_small_map.virt); return -EIO; } @@ -118,6 +120,8 @@ int __init init_ocotea(void) ARRAY_SIZE(ocotea_large_partitions)); } else { printk("map probe failed for flash\n"); + iounmap(ocotea_small_map.virt); + iounmap(ocotea_large_map.virt); return -ENXIO; } diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c index c861134cbc4..995347b1beb 100644 --- a/drivers/mtd/maps/pcmciamtd.c +++ b/drivers/mtd/maps/pcmciamtd.c @@ -602,6 +602,10 @@ static int pcmciamtd_config(struct pcmcia_device *link) ret = pcmcia_request_configuration(link, &link->conf); if(ret != CS_SUCCESS) { cs_error(link, RequestConfiguration, ret); + if (dev->win_base) { + iounmap(dev->win_base); + dev->win_base = NULL; + } return -ENODEV; } diff --git a/drivers/mtd/maps/redwood.c b/drivers/mtd/maps/redwood.c index ec8fdae1dd9..2257d2b500c 100644 --- a/drivers/mtd/maps/redwood.c +++ b/drivers/mtd/maps/redwood.c @@ -126,6 +126,8 @@ static struct mtd_info *redwood_mtd; int __init init_redwood_flash(void) { + int err = 0; + printk(KERN_NOTICE "redwood: flash mapping: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR); @@ -141,11 +143,18 @@ int __init init_redwood_flash(void) if (redwood_mtd) { redwood_mtd->owner = THIS_MODULE; - return add_mtd_partitions(redwood_mtd, + err = add_mtd_partitions(redwood_mtd, redwood_flash_partitions, NUM_REDWOOD_FLASH_PARTITIONS); + if (err) { + printk("init_redwood_flash: add_mtd_partitions failed\n"); + iounmap(redwood_flash_map.virt); + } + return err; + } + iounmap(redwood_flash_map.virt); return -ENXIO; } diff --git a/drivers/mtd/maps/sbc8240.c b/drivers/mtd/maps/sbc8240.c index 7d0fcf8f4f3..b8c1331b7a0 100644 --- a/drivers/mtd/maps/sbc8240.c +++ b/drivers/mtd/maps/sbc8240.c @@ -156,7 +156,7 @@ int __init init_sbc8240_mtd (void) }; int devicesfound = 0; - int i; + int i,j; for (i = 0; i < NUM_FLASH_BANKS; i++) { printk (KERN_NOTICE MSG_PREFIX @@ -166,6 +166,10 @@ int __init init_sbc8240_mtd (void) (unsigned long) ioremap (pt[i].addr, pt[i].size); if (!sbc8240_map[i].map_priv_1) { printk (MSG_PREFIX "failed to ioremap\n"); + for (j = 0; j < i; j++) { + iounmap((void *) sbc8240_map[j].map_priv_1); + sbc8240_map[j].map_priv_1 = 0; + } return -EIO; } simple_map_init(&sbc8240_mtd[i]); @@ -175,6 +179,11 @@ int __init init_sbc8240_mtd (void) if (sbc8240_mtd[i]) { sbc8240_mtd[i]->module = THIS_MODULE; devicesfound++; + } else { + if (sbc8240_map[i].map_priv_1) { + iounmap((void *) sbc8240_map[i].map_priv_1); + sbc8240_map[i].map_priv_1 = 0; + } } } diff --git a/drivers/mtd/maps/walnut.c b/drivers/mtd/maps/walnut.c index ec80eec376b..ca932122fb6 100644 --- a/drivers/mtd/maps/walnut.c +++ b/drivers/mtd/maps/walnut.c @@ -68,6 +68,7 @@ int __init init_walnut(void) if (WALNUT_FLASH_ONBD_N(fpga_brds1)) { printk("The on-board flash is disabled (U79 sw 5)!"); + iounmap(fpga_status_adr); return -EIO; } if (WALNUT_FLASH_SRAM_SEL(fpga_brds1)) @@ -81,6 +82,7 @@ int __init init_walnut(void) if (!walnut_map.virt) { printk("Failed to ioremap flash.\n"); + iounmap(fpga_status_adr); return -EIO; } @@ -93,9 +95,11 @@ int __init init_walnut(void) ARRAY_SIZE(walnut_partitions)); } else { printk("map probe failed for flash\n"); + iounmap(fpga_status_adr); return -ENXIO; } + iounmap(fpga_status_adr); return 0; } diff --git a/drivers/mtd/nand/edb7312.c b/drivers/mtd/nand/edb7312.c index 516c0e5e564..12017f3c6bd 100644 --- a/drivers/mtd/nand/edb7312.c +++ b/drivers/mtd/nand/edb7312.c @@ -198,6 +198,9 @@ static void __exit ep7312_cleanup(void) /* Release resources, unregister device */ nand_release(ap7312_mtd); + /* Release io resource */ + iounmap((void *)this->IO_ADDR_R); + /* Free the MTD device structure */ kfree(ep7312_mtd); } diff --git a/drivers/mtd/nand/ppchameleonevb.c b/drivers/mtd/nand/ppchameleonevb.c index 22fa65c12ab..eb7d4d443de 100644 --- a/drivers/mtd/nand/ppchameleonevb.c +++ b/drivers/mtd/nand/ppchameleonevb.c @@ -276,6 +276,7 @@ static int __init ppchameleonevb_init(void) /* Scan to find existence of the device (it could not be mounted) */ if (nand_scan(ppchameleon_mtd, 1)) { iounmap((void *)ppchameleon_fio_base); + ppchameleon_fio_base = NULL; kfree(ppchameleon_mtd); goto nand_evb_init; } @@ -314,6 +315,8 @@ static int __init ppchameleonevb_init(void) ppchameleonevb_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL); if (!ppchameleonevb_mtd) { printk("Unable to allocate PPChameleonEVB NAND MTD device structure.\n"); + if (ppchameleon_fio_base) + iounmap(ppchameleon_fio_base); return -ENOMEM; } @@ -322,6 +325,8 @@ static int __init ppchameleonevb_init(void) if (!ppchameleonevb_fio_base) { printk("ioremap PPChameleonEVB NAND flash failed\n"); kfree(ppchameleonevb_mtd); + if (ppchameleon_fio_base) + iounmap(ppchameleon_fio_base); return -EIO; } @@ -378,6 +383,8 @@ static int __init ppchameleonevb_init(void) if (nand_scan(ppchameleonevb_mtd, 1)) { iounmap((void *)ppchameleonevb_fio_base); kfree(ppchameleonevb_mtd); + if (ppchameleon_fio_base) + iounmap(ppchameleon_fio_base); return -ENXIO; } #ifdef CONFIG_MTD_PARTITIONS diff --git a/include/linux/utsrelease.h b/include/linux/utsrelease.h new file mode 100644 index 00000000000..7fe1de0ad4c --- /dev/null +++ b/include/linux/utsrelease.h @@ -0,0 +1 @@ +#define UTS_RELEASE "2.6.18" -- cgit v1.2.3-70-g09d2 From 17c2dae3aaff9b1e5d83996a5f098ad693f3aeca Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Thu, 21 Sep 2006 23:16:48 +0200 Subject: [MTD] physmap: add power management support Implement PM handling for physmap. Idea from Steven Scholz, patch by David Anders. Signed-off-by: Lennert Buytenhek Signed-off-by: David Woodhouse --- drivers/mtd/maps/physmap.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c index 7799a25a7f2..bc7cc71788b 100644 --- a/drivers/mtd/maps/physmap.c +++ b/drivers/mtd/maps/physmap.c @@ -158,9 +158,42 @@ err_out: return err; } +#ifdef CONFIG_PM +static int physmap_flash_suspend(struct platform_device *dev, pm_message_t state) +{ + struct physmap_flash_info *info = platform_get_drvdata(dev); + int ret = 0; + + if (info) + ret = info->mtd->suspend(info->mtd); + + return ret; +} + +static int physmap_flash_resume(struct platform_device *dev) +{ + struct physmap_flash_info *info = platform_get_drvdata(dev); + if (info) + info->mtd->resume(info->mtd); + return 0; +} + +static void physmap_flash_shutdown(struct platform_device *dev) +{ + struct physmap_flash_info *info = platform_get_drvdata(dev); + if (info && info->mtd->suspend(info->mtd) == 0) + info->mtd->resume(info->mtd); +} +#endif + static struct platform_driver physmap_flash_driver = { .probe = physmap_flash_probe, .remove = physmap_flash_remove, +#ifdef CONFIG_PM + .suspend = physmap_flash_suspend, + .resume = physmap_flash_resume, + .shutdown = physmap_flash_shutdown, +#endif .driver = { .name = "physmap-flash", }, -- cgit v1.2.3-70-g09d2 From 6a545a0d6021a4d759ba6d0c1082d1abf8d64c84 Mon Sep 17 00:00:00 2001 From: Frank Haverkamp Date: Wed, 20 Sep 2006 17:24:52 +0200 Subject: [MTD NAND] Fix in typo ndfc.c causing wrong ECC layout Due to this typo, a wrong ECC layout table is chosen. Signed-off-by: Frank Haverkamp Signed-off-by: David Woodhouse --- drivers/mtd/nand/ndfc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index e5bd88f2d56..039c759cfbf 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -168,7 +168,7 @@ static void ndfc_chip_init(struct ndfc_nand_mtd *mtd) chip->ecc.mode = NAND_ECC_HW; chip->ecc.size = 256; chip->ecc.bytes = 3; - chip->ecclayout = mtd->pl_chip->ecclayout; + chip->ecclayout = chip->ecc.layout = mtd->pl_chip->ecclayout; mtd->mtd.priv = chip; mtd->mtd.owner = THIS_MODULE; } -- cgit v1.2.3-70-g09d2 From e417fcfb857b809e5dabc9b252ad70f090d553d1 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Thu, 21 Sep 2006 03:47:48 +0200 Subject: [MTD] Remove iq80310 map driver The iq80310 mtd map driver depends on ARCH_IQ80310, which isn't defined anywhere in the tree (as we don't have 80310 support), and furthermore, everything the driver does can be done with physmap instead. Signed-off-by: Lennert Buytenhek Signed-off-by: David Woodhouse --- drivers/mtd/maps/Kconfig | 8 --- drivers/mtd/maps/Makefile | 1 - drivers/mtd/maps/iq80310.c | 118 --------------------------------------------- 3 files changed, 127 deletions(-) delete mode 100644 drivers/mtd/maps/iq80310.c (limited to 'drivers') diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 64d1b6a6c92..24747bdc3e1 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -447,14 +447,6 @@ config MTD_DC21285 21285 bridge used with Intel's StrongARM processors. More info at . -config MTD_IQ80310 - tristate "CFI Flash device mapped on the XScale IQ80310 board" - depends on MTD_CFI && ARCH_IQ80310 - help - This enables access routines for the flash chips on the Intel XScale - IQ80310 evaluation board. If you have one of these boards and would - like to use the flash chips on it, say 'Y'. - config MTD_IXP4XX tristate "CFI Flash device mapped on Intel IXP4xx based systems" depends on MTD_CFI && MTD_COMPLEX_MAPPINGS && ARCH_IXP4XX diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile index ab71f172eb7..191c1928bbe 100644 --- a/drivers/mtd/maps/Makefile +++ b/drivers/mtd/maps/Makefile @@ -15,7 +15,6 @@ obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o obj-$(CONFIG_MTD_CSTM_MIPS_IXX) += cstm_mips_ixx.o obj-$(CONFIG_MTD_DC21285) += dc21285.o obj-$(CONFIG_MTD_DILNETPC) += dilnetpc.o -obj-$(CONFIG_MTD_IQ80310) += iq80310.o obj-$(CONFIG_MTD_L440GX) += l440gx.o obj-$(CONFIG_MTD_AMD76XROM) += amd76xrom.o obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o diff --git a/drivers/mtd/maps/iq80310.c b/drivers/mtd/maps/iq80310.c deleted file mode 100644 index 62d9e87d84e..00000000000 --- a/drivers/mtd/maps/iq80310.c +++ /dev/null @@ -1,118 +0,0 @@ -/* - * $Id: iq80310.c,v 1.21 2005/11/07 11:14:27 gleixner Exp $ - * - * Mapping for the Intel XScale IQ80310 evaluation board - * - * Author: Nicolas Pitre - * Copyright: (C) 2001 MontaVista Software Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - - -#define WINDOW_ADDR 0 -#define WINDOW_SIZE 8*1024*1024 -#define BUSWIDTH 1 - -static struct mtd_info *mymtd; - -static struct map_info iq80310_map = { - .name = "IQ80310 flash", - .size = WINDOW_SIZE, - .bankwidth = BUSWIDTH, - .phys = WINDOW_ADDR -}; - -static struct mtd_partition iq80310_partitions[4] = { - { - .name = "Firmware", - .size = 0x00080000, - .offset = 0, - .mask_flags = MTD_WRITEABLE /* force read-only */ - },{ - .name = "Kernel", - .size = 0x000a0000, - .offset = 0x00080000, - },{ - .name = "Filesystem", - .size = 0x00600000, - .offset = 0x00120000 - },{ - .name = "RedBoot", - .size = 0x000e0000, - .offset = 0x00720000, - .mask_flags = MTD_WRITEABLE - } -}; - -static struct mtd_info *mymtd; -static struct mtd_partition *parsed_parts; -static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; - -static int __init init_iq80310(void) -{ - struct mtd_partition *parts; - int nb_parts = 0; - int parsed_nr_parts = 0; - int ret; - - iq80310_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); - if (!iq80310_map.virt) { - printk("Failed to ioremap\n"); - return -EIO; - } - simple_map_init(&iq80310_map); - - mymtd = do_map_probe("cfi_probe", &iq80310_map); - if (!mymtd) { - iounmap((void *)iq80310_map.virt); - return -ENXIO; - } - mymtd->owner = THIS_MODULE; - - ret = parse_mtd_partitions(mymtd, probes, &parsed_parts, 0); - - if (ret > 0) - parsed_nr_parts = ret; - - if (parsed_nr_parts > 0) { - parts = parsed_parts; - nb_parts = parsed_nr_parts; - } else { - parts = iq80310_partitions; - nb_parts = ARRAY_SIZE(iq80310_partitions); - } - add_mtd_partitions(mymtd, parts, nb_parts); - return 0; -} - -static void __exit cleanup_iq80310(void) -{ - if (mymtd) { - del_mtd_partitions(mymtd); - map_destroy(mymtd); - kfree(parsed_parts); - } - if (iq80310_map.virt) - iounmap((void *)iq80310_map.virt); -} - -module_init(init_iq80310); -module_exit(cleanup_iq80310); - - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Nicolas Pitre "); -MODULE_DESCRIPTION("MTD map driver for Intel XScale IQ80310 evaluation board"); -- cgit v1.2.3-70-g09d2 From cdf0a7d16980858e72f5d26bfe48abf01112fab5 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Tue, 19 Sep 2006 21:55:06 +0200 Subject: [MTD] pmc551 whitespace cleanup Spaces were used for indent, there was more than 80 columns per line. Get rid of that stuff. Signed-off-by: Jiri Slaby Signed-off-by: David Woodhouse --- drivers/mtd/devices/pmc551.c | 1163 ++++++++++++++++++++++-------------------- 1 file changed, 596 insertions(+), 567 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c index a03a8a79e5c..4d4023601d2 100644 --- a/drivers/mtd/devices/pmc551.c +++ b/drivers/mtd/devices/pmc551.c @@ -4,82 +4,82 @@ * PMC551 PCI Mezzanine Ram Device * * Author: - * Mark Ferrell - * Copyright 1999,2000 Nortel Networks + * Mark Ferrell + * Copyright 1999,2000 Nortel Networks * * License: - * As part of this driver was derived from the slram.c driver it - * falls under the same license, which is GNU General Public - * License v2 + * As part of this driver was derived from the slram.c driver it + * falls under the same license, which is GNU General Public + * License v2 * * Description: - * This driver is intended to support the PMC551 PCI Ram device - * from Ramix Inc. The PMC551 is a PMC Mezzanine module for - * cPCI embedded systems. The device contains a single SROM - * that initially programs the V370PDC chipset onboard the - * device, and various banks of DRAM/SDRAM onboard. This driver - * implements this PCI Ram device as an MTD (Memory Technology - * Device) so that it can be used to hold a file system, or for - * added swap space in embedded systems. Since the memory on - * this board isn't as fast as main memory we do not try to hook - * it into main memory as that would simply reduce performance - * on the system. Using it as a block device allows us to use - * it as high speed swap or for a high speed disk device of some - * sort. Which becomes very useful on diskless systems in the - * embedded market I might add. + * This driver is intended to support the PMC551 PCI Ram device + * from Ramix Inc. The PMC551 is a PMC Mezzanine module for + * cPCI embedded systems. The device contains a single SROM + * that initially programs the V370PDC chipset onboard the + * device, and various banks of DRAM/SDRAM onboard. This driver + * implements this PCI Ram device as an MTD (Memory Technology + * Device) so that it can be used to hold a file system, or for + * added swap space in embedded systems. Since the memory on + * this board isn't as fast as main memory we do not try to hook + * it into main memory as that would simply reduce performance + * on the system. Using it as a block device allows us to use + * it as high speed swap or for a high speed disk device of some + * sort. Which becomes very useful on diskless systems in the + * embedded market I might add. * * Notes: - * Due to what I assume is more buggy SROM, the 64M PMC551 I - * have available claims that all 4 of it's DRAM banks have 64M - * of ram configured (making a grand total of 256M onboard). - * This is slightly annoying since the BAR0 size reflects the - * aperture size, not the dram size, and the V370PDC supplies no - * other method for memory size discovery. This problem is - * mostly only relevant when compiled as a module, as the - * unloading of the module with an aperture size smaller then - * the ram will cause the driver to detect the onboard memory - * size to be equal to the aperture size when the module is - * reloaded. Soooo, to help, the module supports an msize - * option to allow the specification of the onboard memory, and - * an asize option, to allow the specification of the aperture - * size. The aperture must be equal to or less then the memory - * size, the driver will correct this if you screw it up. This - * problem is not relevant for compiled in drivers as compiled - * in drivers only init once. + * Due to what I assume is more buggy SROM, the 64M PMC551 I + * have available claims that all 4 of it's DRAM banks have 64M + * of ram configured (making a grand total of 256M onboard). + * This is slightly annoying since the BAR0 size reflects the + * aperture size, not the dram size, and the V370PDC supplies no + * other method for memory size discovery. This problem is + * mostly only relevant when compiled as a module, as the + * unloading of the module with an aperture size smaller then + * the ram will cause the driver to detect the onboard memory + * size to be equal to the aperture size when the module is + * reloaded. Soooo, to help, the module supports an msize + * option to allow the specification of the onboard memory, and + * an asize option, to allow the specification of the aperture + * size. The aperture must be equal to or less then the memory + * size, the driver will correct this if you screw it up. This + * problem is not relevant for compiled in drivers as compiled + * in drivers only init once. * * Credits: - * Saeed Karamooz of Ramix INC. for the - * initial example code of how to initialize this device and for - * help with questions I had concerning operation of the device. + * Saeed Karamooz of Ramix INC. for the + * initial example code of how to initialize this device and for + * help with questions I had concerning operation of the device. * - * Most of the MTD code for this driver was originally written - * for the slram.o module in the MTD drivers package which - * allows the mapping of system memory into an MTD device. - * Since the PMC551 memory module is accessed in the same - * fashion as system memory, the slram.c code became a very nice - * fit to the needs of this driver. All we added was PCI - * detection/initialization to the driver and automatically figure - * out the size via the PCI detection.o, later changes by Corey - * Minyard set up the card to utilize a 1M sliding apature. + * Most of the MTD code for this driver was originally written + * for the slram.o module in the MTD drivers package which + * allows the mapping of system memory into an MTD device. + * Since the PMC551 memory module is accessed in the same + * fashion as system memory, the slram.c code became a very nice + * fit to the needs of this driver. All we added was PCI + * detection/initialization to the driver and automatically figure + * out the size via the PCI detection.o, later changes by Corey + * Minyard set up the card to utilize a 1M sliding apature. * - * Corey Minyard - * * Modified driver to utilize a sliding aperture instead of - * mapping all memory into kernel space which turned out to - * be very wasteful. - * * Located a bug in the SROM's initialization sequence that - * made the memory unusable, added a fix to code to touch up - * the DRAM some. + * Corey Minyard + * * Modified driver to utilize a sliding aperture instead of + * mapping all memory into kernel space which turned out to + * be very wasteful. + * * Located a bug in the SROM's initialization sequence that + * made the memory unusable, added a fix to code to touch up + * the DRAM some. * * Bugs/FIXME's: - * * MUST fix the init function to not spin on a register - * waiting for it to set .. this does not safely handle busted - * devices that never reset the register correctly which will - * cause the system to hang w/ a reboot being the only chance at - * recover. [sort of fixed, could be better] - * * Add I2C handling of the SROM so we can read the SROM's information - * about the aperture size. This should always accurately reflect the - * onboard memory size. - * * Comb the init routine. It's still a bit cludgy on a few things. + * * MUST fix the init function to not spin on a register + * waiting for it to set .. this does not safely handle busted + * devices that never reset the register correctly which will + * cause the system to hang w/ a reboot being the only chance at + * recover. [sort of fixed, could be better] + * * Add I2C handling of the SROM so we can read the SROM's information + * about the aperture size. This should always accurately reflect the + * onboard memory size. + * * Comb the init routine. It's still a bit cludgy on a few things. */ #include @@ -105,74 +105,77 @@ static struct mtd_info *pmc551list; -static int pmc551_erase (struct mtd_info *mtd, struct erase_info *instr) +static int pmc551_erase(struct mtd_info *mtd, struct erase_info *instr) { - struct mypriv *priv = mtd->priv; - u32 soff_hi, soff_lo; /* start address offset hi/lo */ - u32 eoff_hi, eoff_lo; /* end address offset hi/lo */ - unsigned long end; + struct mypriv *priv = mtd->priv; + u32 soff_hi, soff_lo; /* start address offset hi/lo */ + u32 eoff_hi, eoff_lo; /* end address offset hi/lo */ + unsigned long end; u_char *ptr; size_t retlen; #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_erase(pos:%ld, len:%ld)\n", (long)instr->addr, (long)instr->len); + printk(KERN_DEBUG "pmc551_erase(pos:%ld, len:%ld)\n", (long)instr->addr, + (long)instr->len); #endif - end = instr->addr + instr->len - 1; + end = instr->addr + instr->len - 1; - /* Is it past the end? */ - if ( end > mtd->size ) { + /* Is it past the end? */ + if (end > mtd->size) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_erase() out of bounds (%ld > %ld)\n", (long)end, (long)mtd->size); + printk(KERN_DEBUG "pmc551_erase() out of bounds (%ld > %ld)\n", + (long)end, (long)mtd->size); #endif - return -EINVAL; - } - - eoff_hi = end & ~(priv->asize - 1); - soff_hi = instr->addr & ~(priv->asize - 1); - eoff_lo = end & (priv->asize - 1); - soff_lo = instr->addr & (priv->asize - 1); - - pmc551_point (mtd, instr->addr, instr->len, &retlen, &ptr); - - if ( soff_hi == eoff_hi || mtd->size == priv->asize) { - /* The whole thing fits within one access, so just one shot - will do it. */ - memset(ptr, 0xff, instr->len); - } else { - /* We have to do multiple writes to get all the data - written. */ - while (soff_hi != eoff_hi) { + return -EINVAL; + } + + eoff_hi = end & ~(priv->asize - 1); + soff_hi = instr->addr & ~(priv->asize - 1); + eoff_lo = end & (priv->asize - 1); + soff_lo = instr->addr & (priv->asize - 1); + + pmc551_point(mtd, instr->addr, instr->len, &retlen, &ptr); + + if (soff_hi == eoff_hi || mtd->size == priv->asize) { + /* The whole thing fits within one access, so just one shot + will do it. */ + memset(ptr, 0xff, instr->len); + } else { + /* We have to do multiple writes to get all the data + written. */ + while (soff_hi != eoff_hi) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk( KERN_DEBUG "pmc551_erase() soff_hi: %ld, eoff_hi: %ld\n", (long)soff_hi, (long)eoff_hi); + printk(KERN_DEBUG "pmc551_erase() soff_hi: %ld, " + "eoff_hi: %ld\n", (long)soff_hi, (long)eoff_hi); #endif - memset(ptr, 0xff, priv->asize); - if (soff_hi + priv->asize >= mtd->size) { - goto out; - } - soff_hi += priv->asize; - pmc551_point (mtd,(priv->base_map0|soff_hi), - priv->asize, &retlen, &ptr); - } - memset (ptr, 0xff, eoff_lo); - } - -out: + memset(ptr, 0xff, priv->asize); + if (soff_hi + priv->asize >= mtd->size) { + goto out; + } + soff_hi += priv->asize; + pmc551_point(mtd, (priv->base_map0 | soff_hi), + priv->asize, &retlen, &ptr); + } + memset(ptr, 0xff, eoff_lo); + } + + out: instr->state = MTD_ERASE_DONE; #ifdef CONFIG_MTD_PMC551_DEBUG printk(KERN_DEBUG "pmc551_erase() done\n"); #endif - mtd_erase_callback(instr); - return 0; + mtd_erase_callback(instr); + return 0; } - -static int pmc551_point (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char **mtdbuf) +static int pmc551_point(struct mtd_info *mtd, loff_t from, size_t len, + size_t * retlen, u_char ** mtdbuf) { - struct mypriv *priv = mtd->priv; - u32 soff_hi; - u32 soff_lo; + struct mypriv *priv = mtd->priv; + u32 soff_hi; + u32 soff_lo; #ifdef CONFIG_MTD_PMC551_DEBUG printk(KERN_DEBUG "pmc551_point(%ld, %ld)\n", (long)from, (long)len); @@ -180,18 +183,19 @@ static int pmc551_point (struct mtd_info *mtd, loff_t from, size_t len, size_t * if (from + len > mtd->size) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_point() out of bounds (%ld > %ld)\n", (long)from+len, (long)mtd->size); + printk(KERN_DEBUG "pmc551_point() out of bounds (%ld > %ld)\n", + (long)from + len, (long)mtd->size); #endif return -EINVAL; } - soff_hi = from & ~(priv->asize - 1); - soff_lo = from & (priv->asize - 1); + soff_hi = from & ~(priv->asize - 1); + soff_lo = from & (priv->asize - 1); /* Cheap hack optimization */ - if( priv->curr_map0 != from ) { - pci_write_config_dword ( priv->dev, PMC551_PCI_MEM_MAP0, - (priv->base_map0 | soff_hi) ); + if (priv->curr_map0 != from) { + pci_write_config_dword(priv->dev, PMC551_PCI_MEM_MAP0, + (priv->base_map0 | soff_hi)); priv->curr_map0 = soff_hi; } @@ -200,137 +204,144 @@ static int pmc551_point (struct mtd_info *mtd, loff_t from, size_t len, size_t * return 0; } - -static void pmc551_unpoint (struct mtd_info *mtd, u_char *addr, loff_t from, size_t len) +static void pmc551_unpoint(struct mtd_info *mtd, u_char * addr, loff_t from, + size_t len) { #ifdef CONFIG_MTD_PMC551_DEBUG printk(KERN_DEBUG "pmc551_unpoint()\n"); #endif } - -static int pmc551_read (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) +static int pmc551_read(struct mtd_info *mtd, loff_t from, size_t len, + size_t * retlen, u_char * buf) { - struct mypriv *priv = mtd->priv; - u32 soff_hi, soff_lo; /* start address offset hi/lo */ - u32 eoff_hi, eoff_lo; /* end address offset hi/lo */ - unsigned long end; + struct mypriv *priv = mtd->priv; + u32 soff_hi, soff_lo; /* start address offset hi/lo */ + u32 eoff_hi, eoff_lo; /* end address offset hi/lo */ + unsigned long end; u_char *ptr; - u_char *copyto = buf; + u_char *copyto = buf; #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_read(pos:%ld, len:%ld) asize: %ld\n", (long)from, (long)len, (long)priv->asize); + printk(KERN_DEBUG "pmc551_read(pos:%ld, len:%ld) asize: %ld\n", + (long)from, (long)len, (long)priv->asize); #endif - end = from + len - 1; + end = from + len - 1; - /* Is it past the end? */ - if (end > mtd->size) { + /* Is it past the end? */ + if (end > mtd->size) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_read() out of bounds (%ld > %ld)\n", (long) end, (long)mtd->size); + printk(KERN_DEBUG "pmc551_read() out of bounds (%ld > %ld)\n", + (long)end, (long)mtd->size); #endif - return -EINVAL; - } - - soff_hi = from & ~(priv->asize - 1); - eoff_hi = end & ~(priv->asize - 1); - soff_lo = from & (priv->asize - 1); - eoff_lo = end & (priv->asize - 1); - - pmc551_point (mtd, from, len, retlen, &ptr); - - if (soff_hi == eoff_hi) { - /* The whole thing fits within one access, so just one shot - will do it. */ - memcpy(copyto, ptr, len); - copyto += len; - } else { - /* We have to do multiple writes to get all the data - written. */ - while (soff_hi != eoff_hi) { + return -EINVAL; + } + + soff_hi = from & ~(priv->asize - 1); + eoff_hi = end & ~(priv->asize - 1); + soff_lo = from & (priv->asize - 1); + eoff_lo = end & (priv->asize - 1); + + pmc551_point(mtd, from, len, retlen, &ptr); + + if (soff_hi == eoff_hi) { + /* The whole thing fits within one access, so just one shot + will do it. */ + memcpy(copyto, ptr, len); + copyto += len; + } else { + /* We have to do multiple writes to get all the data + written. */ + while (soff_hi != eoff_hi) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk( KERN_DEBUG "pmc551_read() soff_hi: %ld, eoff_hi: %ld\n", (long)soff_hi, (long)eoff_hi); + printk(KERN_DEBUG "pmc551_read() soff_hi: %ld, " + "eoff_hi: %ld\n", (long)soff_hi, (long)eoff_hi); #endif - memcpy(copyto, ptr, priv->asize); - copyto += priv->asize; - if (soff_hi + priv->asize >= mtd->size) { - goto out; - } - soff_hi += priv->asize; - pmc551_point (mtd, soff_hi, priv->asize, retlen, &ptr); - } - memcpy(copyto, ptr, eoff_lo); - copyto += eoff_lo; - } - -out: + memcpy(copyto, ptr, priv->asize); + copyto += priv->asize; + if (soff_hi + priv->asize >= mtd->size) { + goto out; + } + soff_hi += priv->asize; + pmc551_point(mtd, soff_hi, priv->asize, retlen, &ptr); + } + memcpy(copyto, ptr, eoff_lo); + copyto += eoff_lo; + } + + out: #ifdef CONFIG_MTD_PMC551_DEBUG printk(KERN_DEBUG "pmc551_read() done\n"); #endif - *retlen = copyto - buf; - return 0; + *retlen = copyto - buf; + return 0; } -static int pmc551_write (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf) +static int pmc551_write(struct mtd_info *mtd, loff_t to, size_t len, + size_t * retlen, const u_char * buf) { - struct mypriv *priv = mtd->priv; - u32 soff_hi, soff_lo; /* start address offset hi/lo */ - u32 eoff_hi, eoff_lo; /* end address offset hi/lo */ - unsigned long end; + struct mypriv *priv = mtd->priv; + u32 soff_hi, soff_lo; /* start address offset hi/lo */ + u32 eoff_hi, eoff_lo; /* end address offset hi/lo */ + unsigned long end; u_char *ptr; - const u_char *copyfrom = buf; - + const u_char *copyfrom = buf; #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_write(pos:%ld, len:%ld) asize:%ld\n", (long)to, (long)len, (long)priv->asize); + printk(KERN_DEBUG "pmc551_write(pos:%ld, len:%ld) asize:%ld\n", + (long)to, (long)len, (long)priv->asize); #endif - end = to + len - 1; - /* Is it past the end? or did the u32 wrap? */ - if (end > mtd->size ) { + end = to + len - 1; + /* Is it past the end? or did the u32 wrap? */ + if (end > mtd->size) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk(KERN_DEBUG "pmc551_write() out of bounds (end: %ld, size: %ld, to: %ld)\n", (long) end, (long)mtd->size, (long)to); + printk(KERN_DEBUG "pmc551_write() out of bounds (end: %ld, " + "size: %ld, to: %ld)\n", (long)end, (long)mtd->size, + (long)to); #endif - return -EINVAL; - } - - soff_hi = to & ~(priv->asize - 1); - eoff_hi = end & ~(priv->asize - 1); - soff_lo = to & (priv->asize - 1); - eoff_lo = end & (priv->asize - 1); - - pmc551_point (mtd, to, len, retlen, &ptr); - - if (soff_hi == eoff_hi) { - /* The whole thing fits within one access, so just one shot - will do it. */ - memcpy(ptr, copyfrom, len); - copyfrom += len; - } else { - /* We have to do multiple writes to get all the data - written. */ - while (soff_hi != eoff_hi) { + return -EINVAL; + } + + soff_hi = to & ~(priv->asize - 1); + eoff_hi = end & ~(priv->asize - 1); + soff_lo = to & (priv->asize - 1); + eoff_lo = end & (priv->asize - 1); + + pmc551_point(mtd, to, len, retlen, &ptr); + + if (soff_hi == eoff_hi) { + /* The whole thing fits within one access, so just one shot + will do it. */ + memcpy(ptr, copyfrom, len); + copyfrom += len; + } else { + /* We have to do multiple writes to get all the data + written. */ + while (soff_hi != eoff_hi) { #ifdef CONFIG_MTD_PMC551_DEBUG - printk( KERN_DEBUG "pmc551_write() soff_hi: %ld, eoff_hi: %ld\n", (long)soff_hi, (long)eoff_hi); + printk(KERN_DEBUG "pmc551_write() soff_hi: %ld, " + "eoff_hi: %ld\n", (long)soff_hi, (long)eoff_hi); #endif - memcpy(ptr, copyfrom, priv->asize); - copyfrom += priv->asize; - if (soff_hi >= mtd->size) { - goto out; - } - soff_hi += priv->asize; - pmc551_point (mtd, soff_hi, priv->asize, retlen, &ptr); - } - memcpy(ptr, copyfrom, eoff_lo); - copyfrom += eoff_lo; - } - -out: + memcpy(ptr, copyfrom, priv->asize); + copyfrom += priv->asize; + if (soff_hi >= mtd->size) { + goto out; + } + soff_hi += priv->asize; + pmc551_point(mtd, soff_hi, priv->asize, retlen, &ptr); + } + memcpy(ptr, copyfrom, eoff_lo); + copyfrom += eoff_lo; + } + + out: #ifdef CONFIG_MTD_PMC551_DEBUG printk(KERN_DEBUG "pmc551_write() done\n"); #endif - *retlen = copyfrom - buf; - return 0; + *retlen = copyfrom - buf; + return 0; } /* @@ -345,58 +356,58 @@ out: * mechanism * returns the size of the memory region found. */ -static u32 fixup_pmc551 (struct pci_dev *dev) +static u32 fixup_pmc551(struct pci_dev *dev) { #ifdef CONFIG_MTD_PMC551_BUGFIX - u32 dram_data; + u32 dram_data; #endif - u32 size, dcmd, cfg, dtmp; - u16 cmd, tmp, i; + u32 size, dcmd, cfg, dtmp; + u16 cmd, tmp, i; u8 bcmd, counter; - /* Sanity Check */ - if(!dev) { - return -ENODEV; - } + /* Sanity Check */ + if (!dev) { + return -ENODEV; + } /* * Attempt to reset the card * FIXME: Stop Spinning registers */ - counter=0; + counter = 0; /* unlock registers */ - pci_write_config_byte(dev, PMC551_SYS_CTRL_REG, 0xA5 ); + pci_write_config_byte(dev, PMC551_SYS_CTRL_REG, 0xA5); /* read in old data */ - pci_read_config_byte(dev, PMC551_SYS_CTRL_REG, &bcmd ); + pci_read_config_byte(dev, PMC551_SYS_CTRL_REG, &bcmd); /* bang the reset line up and down for a few */ - for(i=0;i<10;i++) { - counter=0; + for (i = 0; i < 10; i++) { + counter = 0; bcmd &= ~0x80; - while(counter++ < 100) { + while (counter++ < 100) { pci_write_config_byte(dev, PMC551_SYS_CTRL_REG, bcmd); } - counter=0; + counter = 0; bcmd |= 0x80; - while(counter++ < 100) { + while (counter++ < 100) { pci_write_config_byte(dev, PMC551_SYS_CTRL_REG, bcmd); } } - bcmd |= (0x40|0x20); + bcmd |= (0x40 | 0x20); pci_write_config_byte(dev, PMC551_SYS_CTRL_REG, bcmd); - /* + /* * Take care and turn off the memory on the device while we * tweak the configurations */ - pci_read_config_word(dev, PCI_COMMAND, &cmd); - tmp = cmd & ~(PCI_COMMAND_IO|PCI_COMMAND_MEMORY); - pci_write_config_word(dev, PCI_COMMAND, tmp); + pci_read_config_word(dev, PCI_COMMAND, &cmd); + tmp = cmd & ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY); + pci_write_config_word(dev, PCI_COMMAND, tmp); /* * Disable existing aperture before probing memory size */ pci_read_config_dword(dev, PMC551_PCI_MEM_MAP0, &dcmd); - dtmp=(dcmd|PMC551_PCI_MEM_MAP_ENABLE|PMC551_PCI_MEM_MAP_REG_EN); + dtmp = (dcmd | PMC551_PCI_MEM_MAP_ENABLE | PMC551_PCI_MEM_MAP_REG_EN); pci_write_config_dword(dev, PMC551_PCI_MEM_MAP0, dtmp); /* * Grab old BAR0 config so that we can figure out memory size @@ -407,220 +418,231 @@ static u32 fixup_pmc551 (struct pci_dev *dev) * then write all 1's to the memory space, read back the result into * "size", and then write back all the old config. */ - pci_read_config_dword( dev, PCI_BASE_ADDRESS_0, &cfg ); + pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &cfg); #ifndef CONFIG_MTD_PMC551_BUGFIX - pci_write_config_dword( dev, PCI_BASE_ADDRESS_0, ~0 ); - pci_read_config_dword( dev, PCI_BASE_ADDRESS_0, &size ); - size = (size&PCI_BASE_ADDRESS_MEM_MASK); - size &= ~(size-1); - pci_write_config_dword( dev, PCI_BASE_ADDRESS_0, cfg ); + pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, ~0); + pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &size); + size = (size & PCI_BASE_ADDRESS_MEM_MASK); + size &= ~(size - 1); + pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, cfg); #else - /* - * Get the size of the memory by reading all the DRAM size values - * and adding them up. - * - * KLUDGE ALERT: the boards we are using have invalid column and - * row mux values. We fix them here, but this will break other - * memory configurations. - */ - pci_read_config_dword(dev, PMC551_DRAM_BLK0, &dram_data); - size = PMC551_DRAM_BLK_GET_SIZE(dram_data); - dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); - dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); - pci_write_config_dword(dev, PMC551_DRAM_BLK0, dram_data); - - pci_read_config_dword(dev, PMC551_DRAM_BLK1, &dram_data); - size += PMC551_DRAM_BLK_GET_SIZE(dram_data); - dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); - dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); - pci_write_config_dword(dev, PMC551_DRAM_BLK1, dram_data); - - pci_read_config_dword(dev, PMC551_DRAM_BLK2, &dram_data); - size += PMC551_DRAM_BLK_GET_SIZE(dram_data); - dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); - dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); - pci_write_config_dword(dev, PMC551_DRAM_BLK2, dram_data); - - pci_read_config_dword(dev, PMC551_DRAM_BLK3, &dram_data); - size += PMC551_DRAM_BLK_GET_SIZE(dram_data); - dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); - dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); - pci_write_config_dword(dev, PMC551_DRAM_BLK3, dram_data); - - /* - * Oops .. something went wrong - */ - if( (size &= PCI_BASE_ADDRESS_MEM_MASK) == 0) { - return -ENODEV; - } -#endif /* CONFIG_MTD_PMC551_BUGFIX */ - - if ((cfg&PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_MEMORY) { - return -ENODEV; + /* + * Get the size of the memory by reading all the DRAM size values + * and adding them up. + * + * KLUDGE ALERT: the boards we are using have invalid column and + * row mux values. We fix them here, but this will break other + * memory configurations. + */ + pci_read_config_dword(dev, PMC551_DRAM_BLK0, &dram_data); + size = PMC551_DRAM_BLK_GET_SIZE(dram_data); + dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); + dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); + pci_write_config_dword(dev, PMC551_DRAM_BLK0, dram_data); + + pci_read_config_dword(dev, PMC551_DRAM_BLK1, &dram_data); + size += PMC551_DRAM_BLK_GET_SIZE(dram_data); + dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); + dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); + pci_write_config_dword(dev, PMC551_DRAM_BLK1, dram_data); + + pci_read_config_dword(dev, PMC551_DRAM_BLK2, &dram_data); + size += PMC551_DRAM_BLK_GET_SIZE(dram_data); + dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); + dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); + pci_write_config_dword(dev, PMC551_DRAM_BLK2, dram_data); + + pci_read_config_dword(dev, PMC551_DRAM_BLK3, &dram_data); + size += PMC551_DRAM_BLK_GET_SIZE(dram_data); + dram_data = PMC551_DRAM_BLK_SET_COL_MUX(dram_data, 0x5); + dram_data = PMC551_DRAM_BLK_SET_ROW_MUX(dram_data, 0x9); + pci_write_config_dword(dev, PMC551_DRAM_BLK3, dram_data); + + /* + * Oops .. something went wrong + */ + if ((size &= PCI_BASE_ADDRESS_MEM_MASK) == 0) { + return -ENODEV; } +#endif /* CONFIG_MTD_PMC551_BUGFIX */ - /* - * Precharge Dram - */ - pci_write_config_word( dev, PMC551_SDRAM_MA, 0x0400 ); - pci_write_config_word( dev, PMC551_SDRAM_CMD, 0x00bf ); - - /* - * Wait until command has gone through - * FIXME: register spinning issue - */ - do { pci_read_config_word( dev, PMC551_SDRAM_CMD, &cmd ); - if(counter++ > 100)break; - } while ( (PCI_COMMAND_IO) & cmd ); - - /* + if ((cfg & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_MEMORY) { + return -ENODEV; + } + + /* + * Precharge Dram + */ + pci_write_config_word(dev, PMC551_SDRAM_MA, 0x0400); + pci_write_config_word(dev, PMC551_SDRAM_CMD, 0x00bf); + + /* + * Wait until command has gone through + * FIXME: register spinning issue + */ + do { + pci_read_config_word(dev, PMC551_SDRAM_CMD, &cmd); + if (counter++ > 100) + break; + } while ((PCI_COMMAND_IO) & cmd); + + /* * Turn on auto refresh * The loop is taken directly from Ramix's example code. I assume that * this must be held high for some duration of time, but I can find no * documentation refrencing the reasons why. - */ - for ( i = 1; i<=8 ; i++) { - pci_write_config_word (dev, PMC551_SDRAM_CMD, 0x0df); - - /* - * Make certain command has gone through - * FIXME: register spinning issue - */ - counter=0; - do { pci_read_config_word(dev, PMC551_SDRAM_CMD, &cmd); - if(counter++ > 100)break; - } while ( (PCI_COMMAND_IO) & cmd ); - } - - pci_write_config_word ( dev, PMC551_SDRAM_MA, 0x0020); - pci_write_config_word ( dev, PMC551_SDRAM_CMD, 0x0ff); - - /* - * Wait until command completes - * FIXME: register spinning issue - */ - counter=0; - do { pci_read_config_word ( dev, PMC551_SDRAM_CMD, &cmd); - if(counter++ > 100)break; - } while ( (PCI_COMMAND_IO) & cmd ); - - pci_read_config_dword ( dev, PMC551_DRAM_CFG, &dcmd); - dcmd |= 0x02000000; - pci_write_config_dword ( dev, PMC551_DRAM_CFG, dcmd); - - /* - * Check to make certain fast back-to-back, if not - * then set it so - */ - pci_read_config_word( dev, PCI_STATUS, &cmd); - if((cmd&PCI_COMMAND_FAST_BACK) == 0) { - cmd |= PCI_COMMAND_FAST_BACK; - pci_write_config_word( dev, PCI_STATUS, cmd); - } - - /* - * Check to make certain the DEVSEL is set correctly, this device - * has a tendancy to assert DEVSEL and TRDY when a write is performed - * to the memory when memory is read-only - */ - if((cmd&PCI_STATUS_DEVSEL_MASK) != 0x0) { - cmd &= ~PCI_STATUS_DEVSEL_MASK; - pci_write_config_word( dev, PCI_STATUS, cmd ); - } - /* - * Set to be prefetchable and put everything back based on old cfg. + */ + for (i = 1; i <= 8; i++) { + pci_write_config_word(dev, PMC551_SDRAM_CMD, 0x0df); + + /* + * Make certain command has gone through + * FIXME: register spinning issue + */ + counter = 0; + do { + pci_read_config_word(dev, PMC551_SDRAM_CMD, &cmd); + if (counter++ > 100) + break; + } while ((PCI_COMMAND_IO) & cmd); + } + + pci_write_config_word(dev, PMC551_SDRAM_MA, 0x0020); + pci_write_config_word(dev, PMC551_SDRAM_CMD, 0x0ff); + + /* + * Wait until command completes + * FIXME: register spinning issue + */ + counter = 0; + do { + pci_read_config_word(dev, PMC551_SDRAM_CMD, &cmd); + if (counter++ > 100) + break; + } while ((PCI_COMMAND_IO) & cmd); + + pci_read_config_dword(dev, PMC551_DRAM_CFG, &dcmd); + dcmd |= 0x02000000; + pci_write_config_dword(dev, PMC551_DRAM_CFG, dcmd); + + /* + * Check to make certain fast back-to-back, if not + * then set it so + */ + pci_read_config_word(dev, PCI_STATUS, &cmd); + if ((cmd & PCI_COMMAND_FAST_BACK) == 0) { + cmd |= PCI_COMMAND_FAST_BACK; + pci_write_config_word(dev, PCI_STATUS, cmd); + } + + /* + * Check to make certain the DEVSEL is set correctly, this device + * has a tendancy to assert DEVSEL and TRDY when a write is performed + * to the memory when memory is read-only + */ + if ((cmd & PCI_STATUS_DEVSEL_MASK) != 0x0) { + cmd &= ~PCI_STATUS_DEVSEL_MASK; + pci_write_config_word(dev, PCI_STATUS, cmd); + } + /* + * Set to be prefetchable and put everything back based on old cfg. * it's possible that the reset of the V370PDC nuked the original * setup - */ + */ /* - cfg |= PCI_BASE_ADDRESS_MEM_PREFETCH; - pci_write_config_dword( dev, PCI_BASE_ADDRESS_0, cfg ); - */ - - /* - * Turn PCI memory and I/O bus access back on - */ - pci_write_config_word( dev, PCI_COMMAND, - PCI_COMMAND_MEMORY | PCI_COMMAND_IO ); + cfg |= PCI_BASE_ADDRESS_MEM_PREFETCH; + pci_write_config_dword( dev, PCI_BASE_ADDRESS_0, cfg ); + */ + + /* + * Turn PCI memory and I/O bus access back on + */ + pci_write_config_word(dev, PCI_COMMAND, + PCI_COMMAND_MEMORY | PCI_COMMAND_IO); #ifdef CONFIG_MTD_PMC551_DEBUG - /* - * Some screen fun - */ - printk(KERN_DEBUG "pmc551: %d%c (0x%x) of %sprefetchable memory at 0x%llx\n", - (size<1024)?size:(size<1048576)?size>>10:size>>20, - (size<1024)?'B':(size<1048576)?'K':'M', - size, ((dcmd&(0x1<<3)) == 0)?"non-":"", - (unsigned long long)((dev->resource[0].start)&PCI_BASE_ADDRESS_MEM_MASK)); - - /* - * Check to see the state of the memory - */ - pci_read_config_dword( dev, PMC551_DRAM_BLK0, &dcmd ); - printk(KERN_DEBUG "pmc551: DRAM_BLK0 Flags: %s,%s\n" - "pmc551: DRAM_BLK0 Size: %d at %d\n" - "pmc551: DRAM_BLK0 Row MUX: %d, Col MUX: %d\n", - (((0x1<<1)&dcmd) == 0)?"RW":"RO", - (((0x1<<0)&dcmd) == 0)?"Off":"On", - PMC551_DRAM_BLK_GET_SIZE(dcmd), - ((dcmd>>20)&0x7FF), ((dcmd>>13)&0x7), ((dcmd>>9)&0xF) ); - - pci_read_config_dword( dev, PMC551_DRAM_BLK1, &dcmd ); - printk(KERN_DEBUG "pmc551: DRAM_BLK1 Flags: %s,%s\n" - "pmc551: DRAM_BLK1 Size: %d at %d\n" - "pmc551: DRAM_BLK1 Row MUX: %d, Col MUX: %d\n", - (((0x1<<1)&dcmd) == 0)?"RW":"RO", - (((0x1<<0)&dcmd) == 0)?"Off":"On", - PMC551_DRAM_BLK_GET_SIZE(dcmd), - ((dcmd>>20)&0x7FF), ((dcmd>>13)&0x7), ((dcmd>>9)&0xF) ); - - pci_read_config_dword( dev, PMC551_DRAM_BLK2, &dcmd ); - printk(KERN_DEBUG "pmc551: DRAM_BLK2 Flags: %s,%s\n" - "pmc551: DRAM_BLK2 Size: %d at %d\n" - "pmc551: DRAM_BLK2 Row MUX: %d, Col MUX: %d\n", - (((0x1<<1)&dcmd) == 0)?"RW":"RO", - (((0x1<<0)&dcmd) == 0)?"Off":"On", - PMC551_DRAM_BLK_GET_SIZE(dcmd), - ((dcmd>>20)&0x7FF), ((dcmd>>13)&0x7), ((dcmd>>9)&0xF) ); - - pci_read_config_dword( dev, PMC551_DRAM_BLK3, &dcmd ); - printk(KERN_DEBUG "pmc551: DRAM_BLK3 Flags: %s,%s\n" - "pmc551: DRAM_BLK3 Size: %d at %d\n" - "pmc551: DRAM_BLK3 Row MUX: %d, Col MUX: %d\n", - (((0x1<<1)&dcmd) == 0)?"RW":"RO", - (((0x1<<0)&dcmd) == 0)?"Off":"On", - PMC551_DRAM_BLK_GET_SIZE(dcmd), - ((dcmd>>20)&0x7FF), ((dcmd>>13)&0x7), ((dcmd>>9)&0xF) ); - - pci_read_config_word( dev, PCI_COMMAND, &cmd ); - printk( KERN_DEBUG "pmc551: Memory Access %s\n", - (((0x1<<1)&cmd) == 0)?"off":"on" ); - printk( KERN_DEBUG "pmc551: I/O Access %s\n", - (((0x1<<0)&cmd) == 0)?"off":"on" ); - - pci_read_config_word( dev, PCI_STATUS, &cmd ); - printk( KERN_DEBUG "pmc551: Devsel %s\n", - ((PCI_STATUS_DEVSEL_MASK&cmd)==0x000)?"Fast": - ((PCI_STATUS_DEVSEL_MASK&cmd)==0x200)?"Medium": - ((PCI_STATUS_DEVSEL_MASK&cmd)==0x400)?"Slow":"Invalid" ); - - printk( KERN_DEBUG "pmc551: %sFast Back-to-Back\n", - ((PCI_COMMAND_FAST_BACK&cmd) == 0)?"Not ":"" ); - - pci_read_config_byte(dev, PMC551_SYS_CTRL_REG, &bcmd ); - printk( KERN_DEBUG "pmc551: EEPROM is under %s control\n" - "pmc551: System Control Register is %slocked to PCI access\n" - "pmc551: System Control Register is %slocked to EEPROM access\n", - (bcmd&0x1)?"software":"hardware", - (bcmd&0x20)?"":"un", (bcmd&0x40)?"":"un"); + /* + * Some screen fun + */ + printk(KERN_DEBUG "pmc551: %d%c (0x%x) of %sprefetchable memory at " + "0x%llx\n", (size < 1024) ? size : (size < 1048576) ? + size >> 10 : size >> 20, + (size < 1024) ? 'B' : (size < 1048576) ? 'K' : 'M', size, + ((dcmd & (0x1 << 3)) == 0) ? "non-" : "", + (unsigned long long)((dev->resource[0].start) & + PCI_BASE_ADDRESS_MEM_MASK)); + + /* + * Check to see the state of the memory + */ + pci_read_config_dword(dev, PMC551_DRAM_BLK0, &dcmd); + printk(KERN_DEBUG "pmc551: DRAM_BLK0 Flags: %s,%s\n" + "pmc551: DRAM_BLK0 Size: %d at %d\n" + "pmc551: DRAM_BLK0 Row MUX: %d, Col MUX: %d\n", + (((0x1 << 1) & dcmd) == 0) ? "RW" : "RO", + (((0x1 << 0) & dcmd) == 0) ? "Off" : "On", + PMC551_DRAM_BLK_GET_SIZE(dcmd), + ((dcmd >> 20) & 0x7FF), ((dcmd >> 13) & 0x7), + ((dcmd >> 9) & 0xF)); + + pci_read_config_dword(dev, PMC551_DRAM_BLK1, &dcmd); + printk(KERN_DEBUG "pmc551: DRAM_BLK1 Flags: %s,%s\n" + "pmc551: DRAM_BLK1 Size: %d at %d\n" + "pmc551: DRAM_BLK1 Row MUX: %d, Col MUX: %d\n", + (((0x1 << 1) & dcmd) == 0) ? "RW" : "RO", + (((0x1 << 0) & dcmd) == 0) ? "Off" : "On", + PMC551_DRAM_BLK_GET_SIZE(dcmd), + ((dcmd >> 20) & 0x7FF), ((dcmd >> 13) & 0x7), + ((dcmd >> 9) & 0xF)); + + pci_read_config_dword(dev, PMC551_DRAM_BLK2, &dcmd); + printk(KERN_DEBUG "pmc551: DRAM_BLK2 Flags: %s,%s\n" + "pmc551: DRAM_BLK2 Size: %d at %d\n" + "pmc551: DRAM_BLK2 Row MUX: %d, Col MUX: %d\n", + (((0x1 << 1) & dcmd) == 0) ? "RW" : "RO", + (((0x1 << 0) & dcmd) == 0) ? "Off" : "On", + PMC551_DRAM_BLK_GET_SIZE(dcmd), + ((dcmd >> 20) & 0x7FF), ((dcmd >> 13) & 0x7), + ((dcmd >> 9) & 0xF)); + + pci_read_config_dword(dev, PMC551_DRAM_BLK3, &dcmd); + printk(KERN_DEBUG "pmc551: DRAM_BLK3 Flags: %s,%s\n" + "pmc551: DRAM_BLK3 Size: %d at %d\n" + "pmc551: DRAM_BLK3 Row MUX: %d, Col MUX: %d\n", + (((0x1 << 1) & dcmd) == 0) ? "RW" : "RO", + (((0x1 << 0) & dcmd) == 0) ? "Off" : "On", + PMC551_DRAM_BLK_GET_SIZE(dcmd), + ((dcmd >> 20) & 0x7FF), ((dcmd >> 13) & 0x7), + ((dcmd >> 9) & 0xF)); + + pci_read_config_word(dev, PCI_COMMAND, &cmd); + printk(KERN_DEBUG "pmc551: Memory Access %s\n", + (((0x1 << 1) & cmd) == 0) ? "off" : "on"); + printk(KERN_DEBUG "pmc551: I/O Access %s\n", + (((0x1 << 0) & cmd) == 0) ? "off" : "on"); + + pci_read_config_word(dev, PCI_STATUS, &cmd); + printk(KERN_DEBUG "pmc551: Devsel %s\n", + ((PCI_STATUS_DEVSEL_MASK & cmd) == 0x000) ? "Fast" : + ((PCI_STATUS_DEVSEL_MASK & cmd) == 0x200) ? "Medium" : + ((PCI_STATUS_DEVSEL_MASK & cmd) == 0x400) ? "Slow" : "Invalid"); + + printk(KERN_DEBUG "pmc551: %sFast Back-to-Back\n", + ((PCI_COMMAND_FAST_BACK & cmd) == 0) ? "Not " : ""); + + pci_read_config_byte(dev, PMC551_SYS_CTRL_REG, &bcmd); + printk(KERN_DEBUG "pmc551: EEPROM is under %s control\n" + "pmc551: System Control Register is %slocked to PCI access\n" + "pmc551: System Control Register is %slocked to EEPROM access\n", + (bcmd & 0x1) ? "software" : "hardware", + (bcmd & 0x20) ? "" : "un", (bcmd & 0x40) ? "" : "un"); #endif - return size; + return size; } /* * Kernel version specific module stuffages */ - MODULE_LICENSE("GPL"); MODULE_AUTHOR("Mark Ferrell "); MODULE_DESCRIPTION(PMC551_VERSION); @@ -628,11 +650,11 @@ MODULE_DESCRIPTION(PMC551_VERSION); /* * Stuff these outside the ifdef so as to not bust compiled in driver support */ -static int msize=0; +static int msize = 0; #if defined(CONFIG_MTD_PMC551_APERTURE_SIZE) -static int asize=CONFIG_MTD_PMC551_APERTURE_SIZE +static int asize = CONFIG_MTD_PMC551_APERTURE_SIZE #else -static int asize=0; +static int asize = 0; #endif module_param(msize, int, 0); @@ -645,172 +667,179 @@ MODULE_PARM_DESC(asize, "aperture size, must be <= memsize [1-1024]"); */ static int __init init_pmc551(void) { - struct pci_dev *PCI_Device = NULL; - struct mypriv *priv; - int count, found=0; - struct mtd_info *mtd; - u32 length = 0; - - if(msize) { - msize = (1 << (ffs(msize) - 1))<<20; - if (msize > (1<<30)) { - printk(KERN_NOTICE "pmc551: Invalid memory size [%d]\n", msize); + struct pci_dev *PCI_Device = NULL; + struct mypriv *priv; + int count, found = 0; + struct mtd_info *mtd; + u32 length = 0; + + if (msize) { + msize = (1 << (ffs(msize) - 1)) << 20; + if (msize > (1 << 30)) { + printk(KERN_NOTICE "pmc551: Invalid memory size [%d]\n", + msize); return -EINVAL; } } - if(asize) { - asize = (1 << (ffs(asize) - 1))<<20; - if (asize > (1<<30) ) { - printk(KERN_NOTICE "pmc551: Invalid aperture size [%d]\n", asize); + if (asize) { + asize = (1 << (ffs(asize) - 1)) << 20; + if (asize > (1 << 30)) { + printk(KERN_NOTICE "pmc551: Invalid aperture size " + "[%d]\n", asize); return -EINVAL; } } - printk(KERN_INFO PMC551_VERSION); - - /* - * PCU-bus chipset probe. - */ - for( count = 0; count < MAX_MTD_DEVICES; count++ ) { - - if ((PCI_Device = pci_get_device(PCI_VENDOR_ID_V3_SEMI, - PCI_DEVICE_ID_V3_SEMI_V370PDC, - PCI_Device ) ) == NULL) { - break; - } - - printk(KERN_NOTICE "pmc551: Found PCI V370PDC at 0x%llx\n", - (unsigned long long)PCI_Device->resource[0].start); - - /* - * The PMC551 device acts VERY weird if you don't init it - * first. i.e. it will not correctly report devsel. If for - * some reason the sdram is in a wrote-protected state the - * device will DEVSEL when it is written to causing problems - * with the oldproc.c driver in - * some kernels (2.2.*) - */ - if((length = fixup_pmc551(PCI_Device)) <= 0) { - printk(KERN_NOTICE "pmc551: Cannot init SDRAM\n"); - break; - } + printk(KERN_INFO PMC551_VERSION); + + /* + * PCU-bus chipset probe. + */ + for (count = 0; count < MAX_MTD_DEVICES; count++) { + + if ((PCI_Device = pci_get_device(PCI_VENDOR_ID_V3_SEMI, + PCI_DEVICE_ID_V3_SEMI_V370PDC, + PCI_Device)) == NULL) { + break; + } + + printk(KERN_NOTICE "pmc551: Found PCI V370PDC at 0x%llx\n", + (unsigned long long)PCI_Device->resource[0].start); + + /* + * The PMC551 device acts VERY weird if you don't init it + * first. i.e. it will not correctly report devsel. If for + * some reason the sdram is in a wrote-protected state the + * device will DEVSEL when it is written to causing problems + * with the oldproc.c driver in + * some kernels (2.2.*) + */ + if ((length = fixup_pmc551(PCI_Device)) <= 0) { + printk(KERN_NOTICE "pmc551: Cannot init SDRAM\n"); + break; + } /* * This is needed until the driver is capable of reading the * onboard I2C SROM to discover the "real" memory size. */ - if(msize) { + if (msize) { length = msize; - printk(KERN_NOTICE "pmc551: Using specified memory size 0x%x\n", length); + printk(KERN_NOTICE "pmc551: Using specified memory " + "size 0x%x\n", length); } else { msize = length; } - mtd = kmalloc(sizeof(struct mtd_info), GFP_KERNEL); - if (!mtd) { - printk(KERN_NOTICE "pmc551: Cannot allocate new MTD device.\n"); - break; - } - - memset(mtd, 0, sizeof(struct mtd_info)); - - priv = kmalloc (sizeof(struct mypriv), GFP_KERNEL); - if (!priv) { - printk(KERN_NOTICE "pmc551: Cannot allocate new MTD device.\n"); - kfree(mtd); - break; - } - memset(priv, 0, sizeof(*priv)); - mtd->priv = priv; - priv->dev = PCI_Device; - - if(asize > length) { - printk(KERN_NOTICE "pmc551: reducing aperture size to fit %dM\n",length>>20); + mtd = kmalloc(sizeof(struct mtd_info), GFP_KERNEL); + if (!mtd) { + printk(KERN_NOTICE "pmc551: Cannot allocate new MTD " + "device.\n"); + break; + } + + memset(mtd, 0, sizeof(struct mtd_info)); + + priv = kmalloc(sizeof(struct mypriv), GFP_KERNEL); + if (!priv) { + printk(KERN_NOTICE "pmc551: Cannot allocate new MTD " + "device.\n"); + kfree(mtd); + break; + } + memset(priv, 0, sizeof(*priv)); + mtd->priv = priv; + priv->dev = PCI_Device; + + if (asize > length) { + printk(KERN_NOTICE "pmc551: reducing aperture size to " + "fit %dM\n", length >> 20); priv->asize = asize = length; } else if (asize == 0 || asize == length) { - printk(KERN_NOTICE "pmc551: Using existing aperture size %dM\n", length>>20); + printk(KERN_NOTICE "pmc551: Using existing aperture " + "size %dM\n", length >> 20); priv->asize = asize = length; } else { - printk(KERN_NOTICE "pmc551: Using specified aperture size %dM\n", asize>>20); + printk(KERN_NOTICE "pmc551: Using specified aperture " + "size %dM\n", asize >> 20); priv->asize = asize; } - priv->start = ioremap(((PCI_Device->resource[0].start) - & PCI_BASE_ADDRESS_MEM_MASK), - priv->asize); + priv->start = ioremap(((PCI_Device->resource[0].start) + & PCI_BASE_ADDRESS_MEM_MASK), + priv->asize); if (!priv->start) { printk(KERN_NOTICE "pmc551: Unable to map IO space\n"); - kfree(mtd->priv); - kfree(mtd); + kfree(mtd->priv); + kfree(mtd); break; } - #ifdef CONFIG_MTD_PMC551_DEBUG - printk( KERN_DEBUG "pmc551: setting aperture to %d\n", - ffs(priv->asize>>20)-1); + printk(KERN_DEBUG "pmc551: setting aperture to %d\n", + ffs(priv->asize >> 20) - 1); #endif - priv->base_map0 = ( PMC551_PCI_MEM_MAP_REG_EN - | PMC551_PCI_MEM_MAP_ENABLE - | (ffs(priv->asize>>20)-1)<<4 ); - priv->curr_map0 = priv->base_map0; - pci_write_config_dword ( priv->dev, PMC551_PCI_MEM_MAP0, - priv->curr_map0 ); + priv->base_map0 = (PMC551_PCI_MEM_MAP_REG_EN + | PMC551_PCI_MEM_MAP_ENABLE + | (ffs(priv->asize >> 20) - 1) << 4); + priv->curr_map0 = priv->base_map0; + pci_write_config_dword(priv->dev, PMC551_PCI_MEM_MAP0, + priv->curr_map0); #ifdef CONFIG_MTD_PMC551_DEBUG - printk( KERN_DEBUG "pmc551: aperture set to %d\n", - (priv->base_map0 & 0xF0)>>4 ); + printk(KERN_DEBUG "pmc551: aperture set to %d\n", + (priv->base_map0 & 0xF0) >> 4); #endif - mtd->size = msize; - mtd->flags = MTD_CAP_RAM; - mtd->erase = pmc551_erase; - mtd->read = pmc551_read; - mtd->write = pmc551_write; - mtd->point = pmc551_point; - mtd->unpoint = pmc551_unpoint; - mtd->type = MTD_RAM; - mtd->name = "PMC551 RAM board"; - mtd->erasesize = 0x10000; - mtd->writesize = 1; - mtd->owner = THIS_MODULE; - - if (add_mtd_device(mtd)) { - printk(KERN_NOTICE "pmc551: Failed to register new device\n"); + mtd->size = msize; + mtd->flags = MTD_CAP_RAM; + mtd->erase = pmc551_erase; + mtd->read = pmc551_read; + mtd->write = pmc551_write; + mtd->point = pmc551_point; + mtd->unpoint = pmc551_unpoint; + mtd->type = MTD_RAM; + mtd->name = "PMC551 RAM board"; + mtd->erasesize = 0x10000; + mtd->writesize = 1; + mtd->owner = THIS_MODULE; + + if (add_mtd_device(mtd)) { + printk(KERN_NOTICE "pmc551: Failed to register new " + "device\n"); iounmap(priv->start); - kfree(mtd->priv); - kfree(mtd); - break; - } - - /* Keep a reference as the add_mtd_device worked */ - pci_dev_get(PCI_Device); - - printk(KERN_NOTICE "Registered pmc551 memory device.\n"); - printk(KERN_NOTICE "Mapped %dM of memory from 0x%p to 0x%p\n", - priv->asize>>20, - priv->start, - priv->start + priv->asize); - printk(KERN_NOTICE "Total memory is %d%c\n", - (length<1024)?length: - (length<1048576)?length>>10:length>>20, - (length<1024)?'B':(length<1048576)?'K':'M'); + kfree(mtd->priv); + kfree(mtd); + break; + } + + /* Keep a reference as the add_mtd_device worked */ + pci_dev_get(PCI_Device); + + printk(KERN_NOTICE "Registered pmc551 memory device.\n"); + printk(KERN_NOTICE "Mapped %dM of memory from 0x%p to 0x%p\n", + priv->asize >> 20, + priv->start, priv->start + priv->asize); + printk(KERN_NOTICE "Total memory is %d%c\n", + (length < 1024) ? length : + (length < 1048576) ? length >> 10 : length >> 20, + (length < 1024) ? 'B' : (length < 1048576) ? 'K' : 'M'); priv->nextpmc551 = pmc551list; pmc551list = mtd; found++; - } + } - /* Exited early, reference left over */ - if (PCI_Device) - pci_dev_put(PCI_Device); + /* Exited early, reference left over */ + if (PCI_Device) + pci_dev_put(PCI_Device); - if( !pmc551list ) { - printk(KERN_NOTICE "pmc551: not detected\n"); - return -ENODEV; - } else { + if (!pmc551list) { + printk(KERN_NOTICE "pmc551: not detected\n"); + return -ENODEV; + } else { printk(KERN_NOTICE "pmc551: %d pmc551 devices loaded\n", found); - return 0; + return 0; } } @@ -819,24 +848,24 @@ static int __init init_pmc551(void) */ static void __exit cleanup_pmc551(void) { - int found=0; - struct mtd_info *mtd; + int found = 0; + struct mtd_info *mtd; struct mypriv *priv; - while((mtd=pmc551list)) { + while ((mtd = pmc551list)) { priv = mtd->priv; pmc551list = priv->nextpmc551; - if(priv->start) { - printk (KERN_DEBUG "pmc551: unmapping %dM starting at 0x%p\n", - priv->asize>>20, priv->start); - iounmap (priv->start); + if (priv->start) { + printk(KERN_DEBUG "pmc551: unmapping %dM starting at " + "0x%p\n", priv->asize >> 20, priv->start); + iounmap(priv->start); } pci_dev_put(priv->dev); - kfree (mtd->priv); - del_mtd_device (mtd); - kfree (mtd); + kfree(mtd->priv); + del_mtd_device(mtd); + kfree(mtd); found++; } -- cgit v1.2.3-70-g09d2 From 7fefb924d7aed7116fe2a68cdbfc9e36318e7300 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Tue, 19 Sep 2006 21:55:18 +0200 Subject: [MTD] pmc551 use kzalloc Use kzalloc instad of kmalloc+memset(0). Signed-off-by: Jiri Slaby Signed-off-by: David Woodhouse --- drivers/mtd/devices/pmc551.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c index 4d4023601d2..62a918895df 100644 --- a/drivers/mtd/devices/pmc551.c +++ b/drivers/mtd/devices/pmc551.c @@ -732,23 +732,20 @@ static int __init init_pmc551(void) msize = length; } - mtd = kmalloc(sizeof(struct mtd_info), GFP_KERNEL); + mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL); if (!mtd) { printk(KERN_NOTICE "pmc551: Cannot allocate new MTD " "device.\n"); break; } - memset(mtd, 0, sizeof(struct mtd_info)); - - priv = kmalloc(sizeof(struct mypriv), GFP_KERNEL); + priv = kzalloc(sizeof(struct mypriv), GFP_KERNEL); if (!priv) { printk(KERN_NOTICE "pmc551: Cannot allocate new MTD " "device.\n"); kfree(mtd); break; } - memset(priv, 0, sizeof(*priv)); mtd->priv = priv; priv->dev = PCI_Device; -- cgit v1.2.3-70-g09d2 From 98aacdfde05ccf512d4395eed0d4894eea2d163c Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Tue, 19 Sep 2006 21:55:28 +0200 Subject: [MTD] pmc551 pci cleanup Use pci_resource_start for getting start of regions and pci_iomap to not doing this directly by using dev->resource... (Thanks to Rolf Eike Beer) Signed-off-by: Jiri Slaby Signed-off-by: David Woodhouse --- drivers/mtd/devices/pmc551.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/pmc551.c b/drivers/mtd/devices/pmc551.c index 62a918895df..354e1657cc2 100644 --- a/drivers/mtd/devices/pmc551.c +++ b/drivers/mtd/devices/pmc551.c @@ -568,8 +568,7 @@ static u32 fixup_pmc551(struct pci_dev *dev) size >> 10 : size >> 20, (size < 1024) ? 'B' : (size < 1048576) ? 'K' : 'M', size, ((dcmd & (0x1 << 3)) == 0) ? "non-" : "", - (unsigned long long)((dev->resource[0].start) & - PCI_BASE_ADDRESS_MEM_MASK)); + (unsigned long long)pci_resource_start(dev, 0)); /* * Check to see the state of the memory @@ -705,7 +704,7 @@ static int __init init_pmc551(void) } printk(KERN_NOTICE "pmc551: Found PCI V370PDC at 0x%llx\n", - (unsigned long long)PCI_Device->resource[0].start); + (unsigned long long)pci_resource_start(PCI_Device, 0)); /* * The PMC551 device acts VERY weird if you don't init it @@ -762,9 +761,7 @@ static int __init init_pmc551(void) "size %dM\n", asize >> 20); priv->asize = asize; } - priv->start = ioremap(((PCI_Device->resource[0].start) - & PCI_BASE_ADDRESS_MEM_MASK), - priv->asize); + priv->start = pci_iomap(PCI_Device, 0, priv->asize); if (!priv->start) { printk(KERN_NOTICE "pmc551: Unable to map IO space\n"); @@ -805,7 +802,7 @@ static int __init init_pmc551(void) if (add_mtd_device(mtd)) { printk(KERN_NOTICE "pmc551: Failed to register new " "device\n"); - iounmap(priv->start); + pci_iounmap(PCI_Device, priv->start); kfree(mtd->priv); kfree(mtd); break; @@ -856,7 +853,7 @@ static void __exit cleanup_pmc551(void) if (priv->start) { printk(KERN_DEBUG "pmc551: unmapping %dM starting at " "0x%p\n", priv->asize >> 20, priv->start); - iounmap(priv->start); + pci_iounmap(priv->dev, priv->start); } pci_dev_put(priv->dev); -- cgit v1.2.3-70-g09d2 From 51197abf29657373bcf9803d87da3c3d8fc3a37e Mon Sep 17 00:00:00 2001 From: Claudio Lanconelli Date: Fri, 22 Sep 2006 11:01:37 +0100 Subject: [MTD] Add SSFDC (SmartMedia) read-only translation layer Signed-off-by: Claudio Lanconelli Signed-off-by: David Woodhouse --- drivers/mtd/Kconfig | 8 + drivers/mtd/Makefile | 1 + drivers/mtd/ssfdc.c | 468 +++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 477 insertions(+) create mode 100644 drivers/mtd/ssfdc.c (limited to 'drivers') diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index 1344ad7a4b1..717e90448fc 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -263,6 +263,14 @@ config RFD_FTL http://www.gensw.com/pages/prod/bios/rfd.htm +config SSFDC + bool "NAND SSFDC (SmartMedia) read only translation layer" + depends on MTD + default n + help + This enables read only access to SmartMedia formatted NAND + flash. You can mount it with FAT file system. + source "drivers/mtd/chips/Kconfig" source "drivers/mtd/maps/Kconfig" diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile index fc9374407c2..1e36b9aed98 100644 --- a/drivers/mtd/Makefile +++ b/drivers/mtd/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_FTL) += ftl.o mtd_blkdevs.o obj-$(CONFIG_NFTL) += nftl.o mtd_blkdevs.o obj-$(CONFIG_INFTL) += inftl.o mtd_blkdevs.o obj-$(CONFIG_RFD_FTL) += rfd_ftl.o mtd_blkdevs.o +obj-$(CONFIG_SSFDC) += ssfdc.o mtd_blkdevs.o nftl-objs := nftlcore.o nftlmount.o inftl-objs := inftlcore.o inftlmount.o diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c new file mode 100644 index 00000000000..ddbf015f411 --- /dev/null +++ b/drivers/mtd/ssfdc.c @@ -0,0 +1,468 @@ +/* + * Linux driver for SSFDC Flash Translation Layer (Read only) + * (c) 2005 Eptar srl + * Author: Claudio Lanconelli + * + * Based on NTFL and MTDBLOCK_RO drivers + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct ssfdcr_record { + struct mtd_blktrans_dev mbd; + int usecount; + unsigned char heads; + unsigned char sectors; + unsigned short cylinders; + int cis_block; /* block n. containing CIS/IDI */ + int erase_size; /* phys_block_size */ + unsigned short *logic_block_map; /* all zones (max 8192 phys blocks on + the 128MB) */ + int map_len; /* n. phys_blocks on the card */ +}; + +#define SSFDCR_MAJOR 257 +#define SSFDCR_PARTN_BITS 3 + +#define SECTOR_SIZE 512 +#define SECTOR_SHIFT 9 +#define OOB_SIZE 16 + +#define MAX_LOGIC_BLK_PER_ZONE 1000 +#define MAX_PHYS_BLK_PER_ZONE 1024 + +#define KB(x) ( (x) * 1024L ) +#define MB(x) ( KB(x) * 1024L ) + +/** CHS Table + 1MB 2MB 4MB 8MB 16MB 32MB 64MB 128MB +NCylinder 125 125 250 250 500 500 500 500 +NHead 4 4 4 4 4 8 8 16 +NSector 4 8 8 16 16 16 32 32 +SumSector 2,000 4,000 8,000 16,000 32,000 64,000 128,000 256,000 +SectorSize 512 512 512 512 512 512 512 512 +**/ + +typedef struct { + unsigned long size; + unsigned short cyl; + unsigned char head; + unsigned char sec; +} chs_entry_t; + +/* Must be ordered by size */ +static const chs_entry_t chs_table[] = { + { MB( 1), 125, 4, 4 }, + { MB( 2), 125, 4, 8 }, + { MB( 4), 250, 4, 8 }, + { MB( 8), 250, 4, 16 }, + { MB( 16), 500, 4, 16 }, + { MB( 32), 500, 8, 16 }, + { MB( 64), 500, 8, 32 }, + { MB(128), 500, 16, 32 }, + { 0 }, +}; + +static int get_chs(unsigned long size, unsigned short *cyl, unsigned char *head, + unsigned char *sec) +{ + int k; + int found = 0; + + k = 0; + while (chs_table[k].size > 0 && size > chs_table[k].size) + k++; + + if (chs_table[k].size > 0) { + if (cyl) + *cyl = chs_table[k].cyl; + if (head) + *head = chs_table[k].head; + if (sec) + *sec = chs_table[k].sec; + found = 1; + } + + return found; +} + +/* These bytes are the signature for the CIS/IDI sector */ +static const uint8_t cis_numbers[] = { + 0x01, 0x03, 0xD9, 0x01, 0xFF, 0x18, 0x02, 0xDF, 0x01, 0x20 +}; + +/* Read and check for a valid CIS sector */ +static int get_valid_cis_sector(struct mtd_info *mtd) +{ + int ret, k, cis_sector; + size_t retlen; + loff_t offset; + uint8_t sect_buf[SECTOR_SIZE]; + + /* + * Look for CIS/IDI sector on the first GOOD block (give up after 4 bad + * blocks). If the first good block doesn't contain CIS number the flash + * is not SSFDC formatted + */ + cis_sector = -1; + for (k = 0, offset = 0; k < 4; k++, offset += mtd->erasesize) { + if (!mtd->block_isbad(mtd, offset)) { + ret = mtd->read(mtd, offset, SECTOR_SIZE, &retlen, + sect_buf); + + /* CIS pattern match on the sector buffer */ + if ( ret < 0 || retlen != SECTOR_SIZE ) { + printk(KERN_WARNING + "SSFDC_RO:can't read CIS/IDI sector\n"); + } else if ( !memcmp(sect_buf, cis_numbers, + sizeof(cis_numbers)) ) { + /* Found */ + cis_sector = (int)(offset >> SECTOR_SHIFT); + } else { + DEBUG(MTD_DEBUG_LEVEL1, + "SSFDC_RO: CIS/IDI sector not found" + " on %s (mtd%d)\n", mtd->name, + mtd->index); + } + break; + } + } + + return cis_sector; +} + +/* Read physical sector (wrapper to MTD_READ) */ +static int read_physical_sector(struct mtd_info *mtd, uint8_t *sect_buf, + int sect_no) +{ + int ret; + size_t retlen; + loff_t offset = (loff_t)sect_no << SECTOR_SHIFT; + + ret = mtd->read(mtd, offset, SECTOR_SIZE, &retlen, sect_buf); + if (ret < 0 || retlen != SECTOR_SIZE) + return -1; + + return 0; +} + +/* Read redundancy area (wrapper to MTD_READ_OOB */ +static int read_raw_oob(struct mtd_info *mtd, loff_t offs, uint8_t *buf) +{ + struct mtd_oob_ops ops; + int ret; + + ops.mode = MTD_OOB_RAW; + ops.ooboffs = 0; + ops.ooblen = mtd->oobsize; + ops.len = OOB_SIZE; + ops.oobbuf = buf; + ops.datbuf = NULL; + + ret = mtd->read_oob(mtd, offs, &ops); + if (ret < 0 || ops.retlen != OOB_SIZE) + return -1; + + return 0; +} + +/* Parity calculator on a word of n bit size */ +static int get_parity(int number, int size) +{ + int k; + int parity; + + parity = 1; + for (k = 0; k < size; k++) { + parity += (number >> k); + parity &= 1; + } + return parity; +} + +/* Read and validate the logical block address field stored in the OOB */ +static int get_logical_address(uint8_t *oob_buf) +{ + int block_address, parity; + int offset[2] = {6, 11}; /* offset of the 2 address fields within OOB */ + int j; + int ok = 0; + + /* + * Look for the first valid logical address + * Valid address has fixed pattern on most significant bits and + * parity check + */ + for (j = 0; j < ARRAY_SIZE(offset); j++) { + block_address = ((int)oob_buf[offset[j]] << 8) | + oob_buf[offset[j]+1]; + + /* Check for the signature bits in the address field (MSBits) */ + if ((block_address & ~0x7FF) == 0x1000) { + parity = block_address & 0x01; + block_address &= 0x7FF; + block_address >>= 1; + + if (get_parity(block_address, 10) != parity) { + DEBUG(MTD_DEBUG_LEVEL0, + "SSFDC_RO: logical address field%d" + "parity error(0x%04X)\n", j+1, + block_address); + } else { + ok = 1; + break; + } + } + } + + if ( !ok ) + block_address = -2; + + DEBUG(MTD_DEBUG_LEVEL3, "SSFDC_RO: get_logical_address() %d\n", + block_address); + + return block_address; +} + +/* Build the logic block map */ +static int build_logical_block_map(struct ssfdcr_record *ssfdc) +{ + unsigned long offset; + uint8_t oob_buf[OOB_SIZE]; + int ret, block_address, phys_block; + struct mtd_info *mtd = ssfdc->mbd.mtd; + + DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: build_block_map() nblks=%d (%luK)\n", + ssfdc->map_len, (unsigned long)ssfdc->map_len * + ssfdc->erase_size / 1024 ); + + /* Scan every physical block, skip CIS block */ + for (phys_block = ssfdc->cis_block + 1; phys_block < ssfdc->map_len; + phys_block++) { + offset = (unsigned long)phys_block * ssfdc->erase_size; + if (mtd->block_isbad(mtd, offset)) + continue; /* skip bad blocks */ + + ret = read_raw_oob(mtd, offset, oob_buf); + if (ret < 0) { + DEBUG(MTD_DEBUG_LEVEL0, + "SSFDC_RO: mtd read_oob() failed at %lu\n", + offset); + return -1; + } + block_address = get_logical_address(oob_buf); + + /* Skip invalid addresses */ + if (block_address >= 0 && + block_address < MAX_LOGIC_BLK_PER_ZONE) { + int zone_index; + + zone_index = phys_block / MAX_PHYS_BLK_PER_ZONE; + block_address += zone_index * MAX_LOGIC_BLK_PER_ZONE; + ssfdc->logic_block_map[block_address] = + (unsigned short)phys_block; + + DEBUG(MTD_DEBUG_LEVEL2, + "SSFDC_RO: build_block_map() phys_block=%d," + "logic_block_addr=%d, zone=%d\n", + phys_block, block_address, zone_index); + } + } + return 0; +} + +static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) +{ + struct ssfdcr_record *ssfdc; + int cis_sector; + + /* Check for small page NAND flash */ + if (mtd->type != MTD_NANDFLASH || mtd->oobsize != OOB_SIZE) + return; + + /* Check for SSDFC format by reading CIS/IDI sector */ + cis_sector = get_valid_cis_sector(mtd); + if (cis_sector == -1) + return; + + ssfdc = kzalloc(sizeof(struct ssfdcr_record), GFP_KERNEL); + if (!ssfdc) { + printk(KERN_WARNING + "SSFDC_RO: out of memory for data structures\n"); + return; + } + + ssfdc->mbd.mtd = mtd; + ssfdc->mbd.devnum = -1; + ssfdc->mbd.blksize = SECTOR_SIZE; + ssfdc->mbd.tr = tr; + ssfdc->mbd.readonly = 1; + + ssfdc->cis_block = cis_sector / (mtd->erasesize >> SECTOR_SHIFT); + ssfdc->erase_size = mtd->erasesize; + ssfdc->map_len = mtd->size / mtd->erasesize; + + DEBUG(MTD_DEBUG_LEVEL1, + "SSFDC_RO: cis_block=%d,erase_size=%d,map_len=%d,n_zones=%d\n", + ssfdc->cis_block, ssfdc->erase_size, ssfdc->map_len, + (ssfdc->map_len + MAX_PHYS_BLK_PER_ZONE - 1) / + MAX_PHYS_BLK_PER_ZONE); + + /* Set geometry */ + ssfdc->heads = 16; + ssfdc->sectors = 32; + get_chs( mtd->size, NULL, &ssfdc->heads, &ssfdc->sectors); + ssfdc->cylinders = (unsigned short)((mtd->size >> SECTOR_SHIFT) / + ((long)ssfdc->sectors * (long)ssfdc->heads)); + + DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: using C:%d H:%d S:%d == %ld sects\n", + ssfdc->cylinders, ssfdc->heads , ssfdc->sectors, + (long)ssfdc->cylinders * (long)ssfdc->heads * + (long)ssfdc->sectors ); + + ssfdc->mbd.size = (long)ssfdc->heads * (long)ssfdc->cylinders * + (long)ssfdc->sectors; + + /* Allocate logical block map */ + ssfdc->logic_block_map = kmalloc( sizeof(ssfdc->logic_block_map[0]) * + ssfdc->map_len, GFP_KERNEL); + if (!ssfdc->logic_block_map) { + printk(KERN_WARNING + "SSFDC_RO: out of memory for data structures\n"); + goto out_err; + } + memset(ssfdc->logic_block_map, 0xff, sizeof(ssfdc->logic_block_map[0]) * + ssfdc->map_len); + + /* Build logical block map */ + if (build_logical_block_map(ssfdc) < 0) + goto out_err; + + /* Register device + partitions */ + if (add_mtd_blktrans_dev(&ssfdc->mbd)) + goto out_err; + + printk(KERN_INFO "SSFDC_RO: Found ssfdc%c on mtd%d (%s)\n", + ssfdc->mbd.devnum + 'a', mtd->index, mtd->name); + return; + +out_err: + kfree(ssfdc->logic_block_map); + kfree(ssfdc); +} + +static void ssfdcr_remove_dev(struct mtd_blktrans_dev *dev) +{ + struct ssfdcr_record *ssfdc = (struct ssfdcr_record *)dev; + + DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: remove_dev (i=%d)\n", dev->devnum); + + del_mtd_blktrans_dev(dev); + kfree(ssfdc->logic_block_map); + kfree(ssfdc); +} + +static int ssfdcr_readsect(struct mtd_blktrans_dev *dev, + unsigned long logic_sect_no, char *buf) +{ + struct ssfdcr_record *ssfdc = (struct ssfdcr_record *)dev; + int sectors_per_block, offset, block_address; + + sectors_per_block = ssfdc->erase_size >> SECTOR_SHIFT; + offset = (int)(logic_sect_no % sectors_per_block); + block_address = (int)(logic_sect_no / sectors_per_block); + + DEBUG(MTD_DEBUG_LEVEL3, + "SSFDC_RO: ssfdcr_readsect(%lu) sec_per_blk=%d, ofst=%d," + " block_addr=%d\n", logic_sect_no, sectors_per_block, offset, + block_address); + + if (block_address >= ssfdc->map_len) + BUG(); + + block_address = ssfdc->logic_block_map[block_address]; + + DEBUG(MTD_DEBUG_LEVEL3, + "SSFDC_RO: ssfdcr_readsect() phys_block_addr=%d\n", + block_address); + + if (block_address < 0xffff) { + unsigned long sect_no; + + sect_no = (unsigned long)block_address * sectors_per_block + + offset; + + DEBUG(MTD_DEBUG_LEVEL3, + "SSFDC_RO: ssfdcr_readsect() phys_sect_no=%lu\n", + sect_no); + + if (read_physical_sector( ssfdc->mbd.mtd, buf, sect_no ) < 0) + return -EIO; + } else { + memset(buf, 0xff, SECTOR_SIZE); + } + + return 0; +} + +static int ssfdcr_getgeo(struct mtd_blktrans_dev *dev, struct hd_geometry *geo) +{ + struct ssfdcr_record *ssfdc = (struct ssfdcr_record *)dev; + + DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: ssfdcr_getgeo() C=%d, H=%d, S=%d\n", + ssfdc->cylinders, ssfdc->heads, ssfdc->sectors); + + geo->heads = ssfdc->heads; + geo->sectors = ssfdc->sectors; + geo->cylinders = ssfdc->cylinders; + + return 0; +} + +/**************************************************************************** + * + * Module stuff + * + ****************************************************************************/ + +static struct mtd_blktrans_ops ssfdcr_tr = { + .name = "ssfdc", + .major = SSFDCR_MAJOR, + .part_bits = SSFDCR_PARTN_BITS, + .getgeo = ssfdcr_getgeo, + .readsect = ssfdcr_readsect, + .add_mtd = ssfdcr_add_mtd, + .remove_dev = ssfdcr_remove_dev, + .owner = THIS_MODULE, +}; + +static int __init init_ssfdcr(void) +{ + printk(KERN_INFO "SSFDC read-only Flash Translation layer\n"); + + return register_mtd_blktrans(&ssfdcr_tr); +} + +static void __exit cleanup_ssfdcr(void) +{ + deregister_mtd_blktrans(&ssfdcr_tr); +} + +module_init(init_ssfdcr); +module_exit(cleanup_ssfdcr); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Claudio Lanconelli "); +MODULE_DESCRIPTION("Flash Translation Layer for read-only SSFDC SmartMedia card"); -- cgit v1.2.3-70-g09d2 From e4e3295f0c0e1a09a46522359e24c0569e2e7b47 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Fri, 22 Sep 2006 11:05:42 +0100 Subject: Revert "[MTD] blkdev helper code: fix printk format warning" This reverts commit 668040fcd1e06fc3e68a92708cbdfa5a52c37d3c. The 'flags' field of the struct request is 'unsigned long'. Quite how Randy came to see 'long int format, different type arg' I don't know, but it doesn't seem to be the case any more. Signed-off-by: David Woodhouse --- drivers/mtd/mtd_blkdevs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index 302bed5f084..458d3c8ae1e 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -69,7 +69,7 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr, return 1; default: - printk(KERN_NOTICE "Unknown request %d\n", rq_data_dir(req)); + printk(KERN_NOTICE "Unknown request %ld\n", rq_data_dir(req)); return 0; } } -- cgit v1.2.3-70-g09d2 From b27075735e371f481940a4920b329202334d2259 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Tue, 19 Sep 2006 11:13:24 +0300 Subject: IB/mthca: Fix lid used for sending traps The SM LID used to send traps to is incorrectly set to port LID. This is a regression from 2.6.17 -- after a PortInfo MAD is received, no traps are sent to the SM LID. The traps go to the loopback interface instead, and are dropped there. The SM LID should be taken from the sm_lid of the PortInfo response. The bug was introduced by commit 12bbb2b7be7f5564952ebe0196623e97464b8ac5: IB/mthca: Add client reregister event generation Signed-off-by: Jack Morgenstein Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_mad.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/mthca/mthca_mad.c b/drivers/infiniband/hw/mthca/mthca_mad.c index d9bc030bccc..45e106f1480 100644 --- a/drivers/infiniband/hw/mthca/mthca_mad.c +++ b/drivers/infiniband/hw/mthca/mthca_mad.c @@ -119,7 +119,7 @@ static void smp_snoop(struct ib_device *ibdev, mthca_update_rate(to_mdev(ibdev), port_num); update_sm_ah(to_mdev(ibdev), port_num, - be16_to_cpu(pinfo->lid), + be16_to_cpu(pinfo->sm_lid), pinfo->neighbormtu_mastersmsl & 0xf); event.device = ibdev; -- cgit v1.2.3-70-g09d2 From 9fd558f454b666aca218a990d44f9e1ffac6ed4d Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Fri, 22 Sep 2006 15:17:18 -0700 Subject: IB/mthca: Don't use privileged UAR for kernel access Make kernel use UAR2 instead of UAR1 for hardware access: this adds sanity checking from the hardware side, without any performance cost. Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_uar.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/mthca/mthca_uar.c b/drivers/infiniband/hw/mthca/mthca_uar.c index 8e9219842be..8b728486410 100644 --- a/drivers/infiniband/hw/mthca/mthca_uar.c +++ b/drivers/infiniband/hw/mthca/mthca_uar.c @@ -60,7 +60,7 @@ int mthca_init_uar_table(struct mthca_dev *dev) ret = mthca_alloc_init(&dev->uar_table.alloc, dev->limits.num_uars, dev->limits.num_uars - 1, - dev->limits.reserved_uars); + dev->limits.reserved_uars + 1); if (ret) return ret; -- cgit v1.2.3-70-g09d2 From 9217b27b12eb5ab910d14b3376c2b6cd13d87711 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Thu, 3 Aug 2006 22:16:06 +0300 Subject: IB/ipoib: Fix flush/start xmit race (from code review) Prevent flush task from freeing the ipoib_neigh pointer, while ipoib_start_xmit() is accessing the ipoib_neigh through the pointer it has loaded from the skb's hardware address. Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_main.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index cf71d2a5515..36d76987a48 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -336,7 +336,8 @@ void ipoib_flush_paths(struct net_device *dev) struct ipoib_path *path, *tp; LIST_HEAD(remove_list); - spin_lock_irq(&priv->lock); + spin_lock_irq(&priv->tx_lock); + spin_lock(&priv->lock); list_splice(&priv->path_list, &remove_list); INIT_LIST_HEAD(&priv->path_list); @@ -347,12 +348,15 @@ void ipoib_flush_paths(struct net_device *dev) list_for_each_entry_safe(path, tp, &remove_list, list) { if (path->query) ib_sa_cancel_query(path->query_id, path->query); - spin_unlock_irq(&priv->lock); + spin_unlock(&priv->lock); + spin_unlock_irq(&priv->tx_lock); wait_for_completion(&path->done); path_free(dev, path); - spin_lock_irq(&priv->lock); + spin_lock_irq(&priv->tx_lock); + spin_lock(&priv->lock); } - spin_unlock_irq(&priv->lock); + spin_unlock(&priv->lock); + spin_unlock_irq(&priv->tx_lock); } static void path_rec_completion(int status, -- cgit v1.2.3-70-g09d2 From ab10867621a96230757eb4a2a19d560b85f62ce9 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 22 Sep 2006 15:17:19 -0700 Subject: IB/uverbs: Use idr_read_cq() where appropriate There were two functions that open-coded idr_read_cq() in terms of idr_read_uobj() rather than using the helper. Signed-off-by: Roland Dreier --- drivers/infiniband/core/uverbs_cmd.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 30923eb68ec..b81307b625a 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -894,7 +894,6 @@ ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file, { struct ib_uverbs_poll_cq cmd; struct ib_uverbs_poll_cq_resp *resp; - struct ib_uobject *uobj; struct ib_cq *cq; struct ib_wc *wc; int ret = 0; @@ -915,16 +914,15 @@ ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file, goto out_wc; } - uobj = idr_read_uobj(&ib_uverbs_cq_idr, cmd.cq_handle, file->ucontext); - if (!uobj) { + cq = idr_read_cq(cmd.cq_handle, file->ucontext); + if (!cq) { ret = -EINVAL; goto out; } - cq = uobj->object; resp->count = ib_poll_cq(cq, cmd.ne, wc); - put_uobj_read(uobj); + put_cq_read(cq); for (i = 0; i < resp->count; i++) { resp->wc[i].wr_id = wc[i].wr_id; @@ -959,21 +957,19 @@ ssize_t ib_uverbs_req_notify_cq(struct ib_uverbs_file *file, int out_len) { struct ib_uverbs_req_notify_cq cmd; - struct ib_uobject *uobj; struct ib_cq *cq; if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - uobj = idr_read_uobj(&ib_uverbs_cq_idr, cmd.cq_handle, file->ucontext); - if (!uobj) + cq = idr_read_cq(cmd.cq_handle, file->ucontext); + if (!cq) return -EINVAL; - cq = uobj->object; ib_req_notify_cq(cq, cmd.solicited_only ? IB_CQ_SOLICITED : IB_CQ_NEXT_COMP); - put_uobj_read(uobj); + put_cq_read(cq); return in_len; } -- cgit v1.2.3-70-g09d2 From 1ccf6aa19aabc11587d6d7818a5729adfed0e3de Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 22 Sep 2006 15:17:20 -0700 Subject: IB/uverbs: Fix lockdep warning when QP is created with 2 CQs Lockdep warns when userspace creates a QP that uses different CQs for send completions and receive completions, because both CQs are locked and their mutexes belong to the same lock class. However, we know that the mutexes are distinct and the nesting is safe (there is no possibility of AB-BA deadlock because the mutexes are locked with down_read()), so annotate the situation with SINGLE_DEPTH_NESTING to get rid of the lockdep warning. Signed-off-by: Roland Dreier --- drivers/infiniband/core/uverbs_cmd.c | 34 +++++++++++++++++++--------------- 1 file changed, 19 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index b81307b625a..8b6df7cec0b 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -155,7 +155,7 @@ static struct ib_uobject *__idr_get_uobj(struct idr *idr, int id, } static struct ib_uobject *idr_read_uobj(struct idr *idr, int id, - struct ib_ucontext *context) + struct ib_ucontext *context, int nested) { struct ib_uobject *uobj; @@ -163,7 +163,10 @@ static struct ib_uobject *idr_read_uobj(struct idr *idr, int id, if (!uobj) return NULL; - down_read(&uobj->mutex); + if (nested) + down_read_nested(&uobj->mutex, SINGLE_DEPTH_NESTING); + else + down_read(&uobj->mutex); if (!uobj->live) { put_uobj_read(uobj); return NULL; @@ -190,17 +193,18 @@ static struct ib_uobject *idr_write_uobj(struct idr *idr, int id, return uobj; } -static void *idr_read_obj(struct idr *idr, int id, struct ib_ucontext *context) +static void *idr_read_obj(struct idr *idr, int id, struct ib_ucontext *context, + int nested) { struct ib_uobject *uobj; - uobj = idr_read_uobj(idr, id, context); + uobj = idr_read_uobj(idr, id, context, nested); return uobj ? uobj->object : NULL; } static struct ib_pd *idr_read_pd(int pd_handle, struct ib_ucontext *context) { - return idr_read_obj(&ib_uverbs_pd_idr, pd_handle, context); + return idr_read_obj(&ib_uverbs_pd_idr, pd_handle, context, 0); } static void put_pd_read(struct ib_pd *pd) @@ -208,9 +212,9 @@ static void put_pd_read(struct ib_pd *pd) put_uobj_read(pd->uobject); } -static struct ib_cq *idr_read_cq(int cq_handle, struct ib_ucontext *context) +static struct ib_cq *idr_read_cq(int cq_handle, struct ib_ucontext *context, int nested) { - return idr_read_obj(&ib_uverbs_cq_idr, cq_handle, context); + return idr_read_obj(&ib_uverbs_cq_idr, cq_handle, context, nested); } static void put_cq_read(struct ib_cq *cq) @@ -220,7 +224,7 @@ static void put_cq_read(struct ib_cq *cq) static struct ib_ah *idr_read_ah(int ah_handle, struct ib_ucontext *context) { - return idr_read_obj(&ib_uverbs_ah_idr, ah_handle, context); + return idr_read_obj(&ib_uverbs_ah_idr, ah_handle, context, 0); } static void put_ah_read(struct ib_ah *ah) @@ -230,7 +234,7 @@ static void put_ah_read(struct ib_ah *ah) static struct ib_qp *idr_read_qp(int qp_handle, struct ib_ucontext *context) { - return idr_read_obj(&ib_uverbs_qp_idr, qp_handle, context); + return idr_read_obj(&ib_uverbs_qp_idr, qp_handle, context, 0); } static void put_qp_read(struct ib_qp *qp) @@ -240,7 +244,7 @@ static void put_qp_read(struct ib_qp *qp) static struct ib_srq *idr_read_srq(int srq_handle, struct ib_ucontext *context) { - return idr_read_obj(&ib_uverbs_srq_idr, srq_handle, context); + return idr_read_obj(&ib_uverbs_srq_idr, srq_handle, context, 0); } static void put_srq_read(struct ib_srq *srq) @@ -867,7 +871,7 @@ ssize_t ib_uverbs_resize_cq(struct ib_uverbs_file *file, (unsigned long) cmd.response + sizeof resp, in_len - sizeof cmd, out_len - sizeof resp); - cq = idr_read_cq(cmd.cq_handle, file->ucontext); + cq = idr_read_cq(cmd.cq_handle, file->ucontext, 0); if (!cq) return -EINVAL; @@ -914,7 +918,7 @@ ssize_t ib_uverbs_poll_cq(struct ib_uverbs_file *file, goto out_wc; } - cq = idr_read_cq(cmd.cq_handle, file->ucontext); + cq = idr_read_cq(cmd.cq_handle, file->ucontext, 0); if (!cq) { ret = -EINVAL; goto out; @@ -962,7 +966,7 @@ ssize_t ib_uverbs_req_notify_cq(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; - cq = idr_read_cq(cmd.cq_handle, file->ucontext); + cq = idr_read_cq(cmd.cq_handle, file->ucontext, 0); if (!cq) return -EINVAL; @@ -1060,9 +1064,9 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file, srq = cmd.is_srq ? idr_read_srq(cmd.srq_handle, file->ucontext) : NULL; pd = idr_read_pd(cmd.pd_handle, file->ucontext); - scq = idr_read_cq(cmd.send_cq_handle, file->ucontext); + scq = idr_read_cq(cmd.send_cq_handle, file->ucontext, 0); rcq = cmd.recv_cq_handle == cmd.send_cq_handle ? - scq : idr_read_cq(cmd.recv_cq_handle, file->ucontext); + scq : idr_read_cq(cmd.recv_cq_handle, file->ucontext, 1); if (!pd || !scq || !rcq || (cmd.is_srq && !srq)) { ret = -EINVAL; -- cgit v1.2.3-70-g09d2 From 2a214182d23594915d6ae517b6368ba2eae055d2 Mon Sep 17 00:00:00 2001 From: James Lentini Date: Fri, 22 Sep 2006 15:17:20 -0700 Subject: IB/mthca: Include the header we really want Signed-off-by: James Lentini Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_cmd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c index deabc14b4ea..99a94d71093 100644 --- a/drivers/infiniband/hw/mthca/mthca_cmd.c +++ b/drivers/infiniband/hw/mthca/mthca_cmd.c @@ -34,7 +34,7 @@ * $Id: mthca_cmd.c 1349 2004-12-16 21:09:43Z roland $ */ -#include +#include #include #include #include -- cgit v1.2.3-70-g09d2 From ded7f1a16d50527359be02f8b04f9ba56bc923e6 Mon Sep 17 00:00:00 2001 From: Ishai Rabinovitz Date: Tue, 15 Aug 2006 17:34:52 +0300 Subject: IB/srp: Add port/device attributes Add local_ib_device and local_ib_port attributes to srp scsi_host. These are needed when we want to connect to the same target through multiple distinct ports. Signed-off-by: Ishai Rabinovitz Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/srp/ib_srp.c | 30 ++++++++++++++++++++++++------ 1 file changed, 24 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index fd8344cdc0d..249a98c06ae 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -1449,12 +1449,28 @@ static ssize_t show_zero_req_lim(struct class_device *cdev, char *buf) return sprintf(buf, "%d\n", target->zero_req_lim); } -static CLASS_DEVICE_ATTR(id_ext, S_IRUGO, show_id_ext, NULL); -static CLASS_DEVICE_ATTR(ioc_guid, S_IRUGO, show_ioc_guid, NULL); -static CLASS_DEVICE_ATTR(service_id, S_IRUGO, show_service_id, NULL); -static CLASS_DEVICE_ATTR(pkey, S_IRUGO, show_pkey, NULL); -static CLASS_DEVICE_ATTR(dgid, S_IRUGO, show_dgid, NULL); -static CLASS_DEVICE_ATTR(zero_req_lim, S_IRUGO, show_zero_req_lim, NULL); +static ssize_t show_local_ib_port(struct class_device *cdev, char *buf) +{ + struct srp_target_port *target = host_to_target(class_to_shost(cdev)); + + return sprintf(buf, "%d\n", target->srp_host->port); +} + +static ssize_t show_local_ib_device(struct class_device *cdev, char *buf) +{ + struct srp_target_port *target = host_to_target(class_to_shost(cdev)); + + return sprintf(buf, "%s\n", target->srp_host->dev->dev->name); +} + +static CLASS_DEVICE_ATTR(id_ext, S_IRUGO, show_id_ext, NULL); +static CLASS_DEVICE_ATTR(ioc_guid, S_IRUGO, show_ioc_guid, NULL); +static CLASS_DEVICE_ATTR(service_id, S_IRUGO, show_service_id, NULL); +static CLASS_DEVICE_ATTR(pkey, S_IRUGO, show_pkey, NULL); +static CLASS_DEVICE_ATTR(dgid, S_IRUGO, show_dgid, NULL); +static CLASS_DEVICE_ATTR(zero_req_lim, S_IRUGO, show_zero_req_lim, NULL); +static CLASS_DEVICE_ATTR(local_ib_port, S_IRUGO, show_local_ib_port, NULL); +static CLASS_DEVICE_ATTR(local_ib_device, S_IRUGO, show_local_ib_device, NULL); static struct class_device_attribute *srp_host_attrs[] = { &class_device_attr_id_ext, @@ -1463,6 +1479,8 @@ static struct class_device_attribute *srp_host_attrs[] = { &class_device_attr_pkey, &class_device_attr_dgid, &class_device_attr_zero_req_lim, + &class_device_attr_local_ib_port, + &class_device_attr_local_ib_device, NULL }; -- cgit v1.2.3-70-g09d2 From fab97220c9e409a98b1956ba677ddd2dd43b0b95 Mon Sep 17 00:00:00 2001 From: Heiko J Schick Date: Fri, 22 Sep 2006 15:22:22 -0700 Subject: IB/ehca: Add driver for IBM eHCA InfiniBand adapters Add a driver for IBM GX bus InfiniBand adapters, which are usable with some pSeries/System p systems. Signed-off-by: Heiko J Schick Signed-off-by: Roland Dreier --- MAINTAINERS | 8 + drivers/infiniband/Kconfig | 1 + drivers/infiniband/Makefile | 1 + drivers/infiniband/hw/ehca/Kconfig | 16 + drivers/infiniband/hw/ehca/Makefile | 16 + drivers/infiniband/hw/ehca/ehca_av.c | 271 +++ drivers/infiniband/hw/ehca/ehca_classes.h | 346 ++++ drivers/infiniband/hw/ehca/ehca_classes_pSeries.h | 236 +++ drivers/infiniband/hw/ehca/ehca_cq.c | 427 ++++ drivers/infiniband/hw/ehca/ehca_eq.c | 185 ++ drivers/infiniband/hw/ehca/ehca_hca.c | 241 +++ drivers/infiniband/hw/ehca/ehca_irq.c | 762 +++++++ drivers/infiniband/hw/ehca/ehca_irq.h | 77 + drivers/infiniband/hw/ehca/ehca_iverbs.h | 181 ++ drivers/infiniband/hw/ehca/ehca_main.c | 818 ++++++++ drivers/infiniband/hw/ehca/ehca_mcast.c | 131 ++ drivers/infiniband/hw/ehca/ehca_mrmw.c | 2261 +++++++++++++++++++++ drivers/infiniband/hw/ehca/ehca_mrmw.h | 140 ++ drivers/infiniband/hw/ehca/ehca_pd.c | 114 ++ drivers/infiniband/hw/ehca/ehca_qes.h | 259 +++ drivers/infiniband/hw/ehca/ehca_qp.c | 1506 ++++++++++++++ drivers/infiniband/hw/ehca/ehca_reqs.c | 653 ++++++ drivers/infiniband/hw/ehca/ehca_sqp.c | 111 + drivers/infiniband/hw/ehca/ehca_tools.h | 172 ++ drivers/infiniband/hw/ehca/ehca_uverbs.c | 392 ++++ drivers/infiniband/hw/ehca/hcp_if.c | 874 ++++++++ drivers/infiniband/hw/ehca/hcp_if.h | 261 +++ drivers/infiniband/hw/ehca/hcp_phyp.c | 80 + drivers/infiniband/hw/ehca/hcp_phyp.h | 90 + drivers/infiniband/hw/ehca/hipz_fns.h | 68 + drivers/infiniband/hw/ehca/hipz_fns_core.h | 100 + drivers/infiniband/hw/ehca/hipz_hw.h | 388 ++++ drivers/infiniband/hw/ehca/ipz_pt_fn.c | 149 ++ drivers/infiniband/hw/ehca/ipz_pt_fn.h | 247 +++ 34 files changed, 11582 insertions(+) create mode 100644 drivers/infiniband/hw/ehca/Kconfig create mode 100644 drivers/infiniband/hw/ehca/Makefile create mode 100644 drivers/infiniband/hw/ehca/ehca_av.c create mode 100644 drivers/infiniband/hw/ehca/ehca_classes.h create mode 100644 drivers/infiniband/hw/ehca/ehca_classes_pSeries.h create mode 100644 drivers/infiniband/hw/ehca/ehca_cq.c create mode 100644 drivers/infiniband/hw/ehca/ehca_eq.c create mode 100644 drivers/infiniband/hw/ehca/ehca_hca.c create mode 100644 drivers/infiniband/hw/ehca/ehca_irq.c create mode 100644 drivers/infiniband/hw/ehca/ehca_irq.h create mode 100644 drivers/infiniband/hw/ehca/ehca_iverbs.h create mode 100644 drivers/infiniband/hw/ehca/ehca_main.c create mode 100644 drivers/infiniband/hw/ehca/ehca_mcast.c create mode 100644 drivers/infiniband/hw/ehca/ehca_mrmw.c create mode 100644 drivers/infiniband/hw/ehca/ehca_mrmw.h create mode 100644 drivers/infiniband/hw/ehca/ehca_pd.c create mode 100644 drivers/infiniband/hw/ehca/ehca_qes.h create mode 100644 drivers/infiniband/hw/ehca/ehca_qp.c create mode 100644 drivers/infiniband/hw/ehca/ehca_reqs.c create mode 100644 drivers/infiniband/hw/ehca/ehca_sqp.c create mode 100644 drivers/infiniband/hw/ehca/ehca_tools.h create mode 100644 drivers/infiniband/hw/ehca/ehca_uverbs.c create mode 100644 drivers/infiniband/hw/ehca/hcp_if.c create mode 100644 drivers/infiniband/hw/ehca/hcp_if.h create mode 100644 drivers/infiniband/hw/ehca/hcp_phyp.c create mode 100644 drivers/infiniband/hw/ehca/hcp_phyp.h create mode 100644 drivers/infiniband/hw/ehca/hipz_fns.h create mode 100644 drivers/infiniband/hw/ehca/hipz_fns_core.h create mode 100644 drivers/infiniband/hw/ehca/hipz_hw.h create mode 100644 drivers/infiniband/hw/ehca/ipz_pt_fn.c create mode 100644 drivers/infiniband/hw/ehca/ipz_pt_fn.h (limited to 'drivers') diff --git a/MAINTAINERS b/MAINTAINERS index ed2a83cfad7..830bec779d4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -991,6 +991,14 @@ EFS FILESYSTEM W: http://aeschi.ch.eu.org/efs/ S: Orphan +EHCA (IBM GX bus InfiniBand adapter) DRIVER: +P: Hoang-Nam Nguyen +M: hnguyen@de.ibm.com +P: Christoph Raisch +M: raisch@de.ibm.com +L: openib-general@openib.org +S: Supported + EMU10K1 SOUND DRIVER P: James Courtier-Dutton M: James@superbug.demon.co.uk diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig index 69a53d476b5..fd2d528daa3 100644 --- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -36,6 +36,7 @@ config INFINIBAND_ADDR_TRANS source "drivers/infiniband/hw/mthca/Kconfig" source "drivers/infiniband/hw/ipath/Kconfig" +source "drivers/infiniband/hw/ehca/Kconfig" source "drivers/infiniband/ulp/ipoib/Kconfig" diff --git a/drivers/infiniband/Makefile b/drivers/infiniband/Makefile index c7ff58c1d0e..893bee0a50b 100644 --- a/drivers/infiniband/Makefile +++ b/drivers/infiniband/Makefile @@ -1,6 +1,7 @@ obj-$(CONFIG_INFINIBAND) += core/ obj-$(CONFIG_INFINIBAND_MTHCA) += hw/mthca/ obj-$(CONFIG_IPATH_CORE) += hw/ipath/ +obj-$(CONFIG_INFINIBAND_EHCA) += hw/ehca/ obj-$(CONFIG_INFINIBAND_IPOIB) += ulp/ipoib/ obj-$(CONFIG_INFINIBAND_SRP) += ulp/srp/ obj-$(CONFIG_INFINIBAND_ISER) += ulp/iser/ diff --git a/drivers/infiniband/hw/ehca/Kconfig b/drivers/infiniband/hw/ehca/Kconfig new file mode 100644 index 00000000000..922389b6439 --- /dev/null +++ b/drivers/infiniband/hw/ehca/Kconfig @@ -0,0 +1,16 @@ +config INFINIBAND_EHCA + tristate "eHCA support" + depends on IBMEBUS && INFINIBAND + ---help--- + This driver supports the IBM pSeries eHCA InfiniBand adapter. + + To compile the driver as a module, choose M here. The module + will be called ib_ehca. + +config INFINIBAND_EHCA_SCALING + bool "Scaling support (EXPERIMENTAL)" + depends on IBMEBUS && INFINIBAND_EHCA && HOTPLUG_CPU && EXPERIMENTAL + ---help--- + eHCA scaling support schedules the CQ callbacks to different CPUs. + + To enable this feature choose Y here. diff --git a/drivers/infiniband/hw/ehca/Makefile b/drivers/infiniband/hw/ehca/Makefile new file mode 100644 index 00000000000..74d284e46a4 --- /dev/null +++ b/drivers/infiniband/hw/ehca/Makefile @@ -0,0 +1,16 @@ +# Authors: Heiko J Schick +# Christoph Raisch +# Joachim Fenkes +# +# Copyright (c) 2005 IBM Corporation +# +# All rights reserved. +# +# This source code is distributed under a dual license of GPL v2.0 and OpenIB BSD. + +obj-$(CONFIG_INFINIBAND_EHCA) += ib_ehca.o + +ib_ehca-objs = ehca_main.o ehca_hca.o ehca_mcast.o ehca_pd.o ehca_av.o ehca_eq.o \ + ehca_cq.o ehca_qp.o ehca_sqp.o ehca_mrmw.o ehca_reqs.o ehca_irq.o \ + ehca_uverbs.o ipz_pt_fn.o hcp_if.o hcp_phyp.o + diff --git a/drivers/infiniband/hw/ehca/ehca_av.c b/drivers/infiniband/hw/ehca/ehca_av.c new file mode 100644 index 00000000000..3bac197f901 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_av.c @@ -0,0 +1,271 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * adress vector functions + * + * Authors: Hoang-Nam Nguyen + * Khadija Souissi + * Reinhard Ernst + * Christoph Raisch + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + + +#include + +#include "ehca_tools.h" +#include "ehca_iverbs.h" +#include "hcp_if.h" + +static struct kmem_cache *av_cache; + +struct ib_ah *ehca_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr) +{ + int ret; + struct ehca_av *av; + struct ehca_shca *shca = container_of(pd->device, struct ehca_shca, + ib_device); + + av = kmem_cache_alloc(av_cache, SLAB_KERNEL); + if (!av) { + ehca_err(pd->device, "Out of memory pd=%p ah_attr=%p", + pd, ah_attr); + return ERR_PTR(-ENOMEM); + } + + av->av.sl = ah_attr->sl; + av->av.dlid = ah_attr->dlid; + av->av.slid_path_bits = ah_attr->src_path_bits; + + if (ehca_static_rate < 0) { + int ah_mult = ib_rate_to_mult(ah_attr->static_rate); + int ehca_mult = + ib_rate_to_mult(shca->sport[ah_attr->port_num].rate ); + + if (ah_mult >= ehca_mult) + av->av.ipd = 0; + else + av->av.ipd = (ah_mult > 0) ? + ((ehca_mult - 1) / ah_mult) : 0; + } else + av->av.ipd = ehca_static_rate; + + av->av.lnh = ah_attr->ah_flags; + av->av.grh.word_0 = EHCA_BMASK_SET(GRH_IPVERSION_MASK, 6); + av->av.grh.word_0 |= EHCA_BMASK_SET(GRH_TCLASS_MASK, + ah_attr->grh.traffic_class); + av->av.grh.word_0 |= EHCA_BMASK_SET(GRH_FLOWLABEL_MASK, + ah_attr->grh.flow_label); + av->av.grh.word_0 |= EHCA_BMASK_SET(GRH_HOPLIMIT_MASK, + ah_attr->grh.hop_limit); + av->av.grh.word_0 |= EHCA_BMASK_SET(GRH_NEXTHEADER_MASK, 0x1B); + /* set sgid in grh.word_1 */ + if (ah_attr->ah_flags & IB_AH_GRH) { + int rc; + struct ib_port_attr port_attr; + union ib_gid gid; + memset(&port_attr, 0, sizeof(port_attr)); + rc = ehca_query_port(pd->device, ah_attr->port_num, + &port_attr); + if (rc) { /* invalid port number */ + ret = -EINVAL; + ehca_err(pd->device, "Invalid port number " + "ehca_query_port() returned %x " + "pd=%p ah_attr=%p", rc, pd, ah_attr); + goto create_ah_exit1; + } + memset(&gid, 0, sizeof(gid)); + rc = ehca_query_gid(pd->device, + ah_attr->port_num, + ah_attr->grh.sgid_index, &gid); + if (rc) { + ret = -EINVAL; + ehca_err(pd->device, "Failed to retrieve sgid " + "ehca_query_gid() returned %x " + "pd=%p ah_attr=%p", rc, pd, ah_attr); + goto create_ah_exit1; + } + memcpy(&av->av.grh.word_1, &gid, sizeof(gid)); + } + /* for the time being we use a hard coded PMTU of 2048 Bytes */ + av->av.pmtu = 4; + + /* dgid comes in grh.word_3 */ + memcpy(&av->av.grh.word_3, &ah_attr->grh.dgid, + sizeof(ah_attr->grh.dgid)); + + return &av->ib_ah; + +create_ah_exit1: + kmem_cache_free(av_cache, av); + + return ERR_PTR(ret); +} + +int ehca_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr) +{ + struct ehca_av *av; + struct ehca_ud_av new_ehca_av; + struct ehca_pd *my_pd = container_of(ah->pd, struct ehca_pd, ib_pd); + u32 cur_pid = current->tgid; + + if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && + my_pd->ownpid != cur_pid) { + ehca_err(ah->device, "Invalid caller pid=%x ownpid=%x", + cur_pid, my_pd->ownpid); + return -EINVAL; + } + + memset(&new_ehca_av, 0, sizeof(new_ehca_av)); + new_ehca_av.sl = ah_attr->sl; + new_ehca_av.dlid = ah_attr->dlid; + new_ehca_av.slid_path_bits = ah_attr->src_path_bits; + new_ehca_av.ipd = ah_attr->static_rate; + new_ehca_av.lnh = EHCA_BMASK_SET(GRH_FLAG_MASK, + (ah_attr->ah_flags & IB_AH_GRH) > 0); + new_ehca_av.grh.word_0 = EHCA_BMASK_SET(GRH_TCLASS_MASK, + ah_attr->grh.traffic_class); + new_ehca_av.grh.word_0 |= EHCA_BMASK_SET(GRH_FLOWLABEL_MASK, + ah_attr->grh.flow_label); + new_ehca_av.grh.word_0 |= EHCA_BMASK_SET(GRH_HOPLIMIT_MASK, + ah_attr->grh.hop_limit); + new_ehca_av.grh.word_0 |= EHCA_BMASK_SET(GRH_NEXTHEADER_MASK, 0x1b); + + /* set sgid in grh.word_1 */ + if (ah_attr->ah_flags & IB_AH_GRH) { + int rc; + struct ib_port_attr port_attr; + union ib_gid gid; + memset(&port_attr, 0, sizeof(port_attr)); + rc = ehca_query_port(ah->device, ah_attr->port_num, + &port_attr); + if (rc) { /* invalid port number */ + ehca_err(ah->device, "Invalid port number " + "ehca_query_port() returned %x " + "ah=%p ah_attr=%p port_num=%x", + rc, ah, ah_attr, ah_attr->port_num); + return -EINVAL; + } + memset(&gid, 0, sizeof(gid)); + rc = ehca_query_gid(ah->device, + ah_attr->port_num, + ah_attr->grh.sgid_index, &gid); + if (rc) { + ehca_err(ah->device, "Failed to retrieve sgid " + "ehca_query_gid() returned %x " + "ah=%p ah_attr=%p port_num=%x " + "sgid_index=%x", + rc, ah, ah_attr, ah_attr->port_num, + ah_attr->grh.sgid_index); + return -EINVAL; + } + memcpy(&new_ehca_av.grh.word_1, &gid, sizeof(gid)); + } + + new_ehca_av.pmtu = 4; /* see also comment in create_ah() */ + + memcpy(&new_ehca_av.grh.word_3, &ah_attr->grh.dgid, + sizeof(ah_attr->grh.dgid)); + + av = container_of(ah, struct ehca_av, ib_ah); + av->av = new_ehca_av; + + return 0; +} + +int ehca_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr) +{ + struct ehca_av *av = container_of(ah, struct ehca_av, ib_ah); + struct ehca_pd *my_pd = container_of(ah->pd, struct ehca_pd, ib_pd); + u32 cur_pid = current->tgid; + + if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && + my_pd->ownpid != cur_pid) { + ehca_err(ah->device, "Invalid caller pid=%x ownpid=%x", + cur_pid, my_pd->ownpid); + return -EINVAL; + } + + memcpy(&ah_attr->grh.dgid, &av->av.grh.word_3, + sizeof(ah_attr->grh.dgid)); + ah_attr->sl = av->av.sl; + + ah_attr->dlid = av->av.dlid; + + ah_attr->src_path_bits = av->av.slid_path_bits; + ah_attr->static_rate = av->av.ipd; + ah_attr->ah_flags = EHCA_BMASK_GET(GRH_FLAG_MASK, av->av.lnh); + ah_attr->grh.traffic_class = EHCA_BMASK_GET(GRH_TCLASS_MASK, + av->av.grh.word_0); + ah_attr->grh.hop_limit = EHCA_BMASK_GET(GRH_HOPLIMIT_MASK, + av->av.grh.word_0); + ah_attr->grh.flow_label = EHCA_BMASK_GET(GRH_FLOWLABEL_MASK, + av->av.grh.word_0); + + return 0; +} + +int ehca_destroy_ah(struct ib_ah *ah) +{ + struct ehca_pd *my_pd = container_of(ah->pd, struct ehca_pd, ib_pd); + u32 cur_pid = current->tgid; + + if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && + my_pd->ownpid != cur_pid) { + ehca_err(ah->device, "Invalid caller pid=%x ownpid=%x", + cur_pid, my_pd->ownpid); + return -EINVAL; + } + + kmem_cache_free(av_cache, container_of(ah, struct ehca_av, ib_ah)); + + return 0; +} + +int ehca_init_av_cache(void) +{ + av_cache = kmem_cache_create("ehca_cache_av", + sizeof(struct ehca_av), 0, + SLAB_HWCACHE_ALIGN, + NULL, NULL); + if (!av_cache) + return -ENOMEM; + return 0; +} + +void ehca_cleanup_av_cache(void) +{ + if (av_cache) + kmem_cache_destroy(av_cache); +} diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h new file mode 100644 index 00000000000..1c722032319 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_classes.h @@ -0,0 +1,346 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * Struct definition for eHCA internal structures + * + * Authors: Heiko J Schick + * Christoph Raisch + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __EHCA_CLASSES_H__ +#define __EHCA_CLASSES_H__ + +#include "ehca_classes.h" +#include "ipz_pt_fn.h" + +struct ehca_module; +struct ehca_qp; +struct ehca_cq; +struct ehca_eq; +struct ehca_mr; +struct ehca_mw; +struct ehca_pd; +struct ehca_av; + +#ifdef CONFIG_PPC64 +#include "ehca_classes_pSeries.h" +#endif + +#include +#include + +#include "ehca_irq.h" + +struct ehca_eq { + u32 length; + struct ipz_queue ipz_queue; + struct ipz_eq_handle ipz_eq_handle; + struct work_struct work; + struct h_galpas galpas; + int is_initialized; + struct ehca_pfeq pf; + spinlock_t spinlock; + struct tasklet_struct interrupt_task; + u32 ist; +}; + +struct ehca_sport { + struct ib_cq *ibcq_aqp1; + struct ib_qp *ibqp_aqp1; + enum ib_rate rate; + enum ib_port_state port_state; +}; + +struct ehca_shca { + struct ib_device ib_device; + struct ibmebus_dev *ibmebus_dev; + u8 num_ports; + int hw_level; + struct list_head shca_list; + struct ipz_adapter_handle ipz_hca_handle; + struct ehca_sport sport[2]; + struct ehca_eq eq; + struct ehca_eq neq; + struct ehca_mr *maxmr; + struct ehca_pd *pd; + struct h_galpas galpas; +}; + +struct ehca_pd { + struct ib_pd ib_pd; + struct ipz_pd fw_pd; + u32 ownpid; +}; + +struct ehca_qp { + struct ib_qp ib_qp; + u32 qp_type; + struct ipz_queue ipz_squeue; + struct ipz_queue ipz_rqueue; + struct h_galpas galpas; + u32 qkey; + u32 real_qp_num; + u32 token; + spinlock_t spinlock_s; + spinlock_t spinlock_r; + u32 sq_max_inline_data_size; + struct ipz_qp_handle ipz_qp_handle; + struct ehca_pfqp pf; + struct ib_qp_init_attr init_attr; + u64 uspace_squeue; + u64 uspace_rqueue; + u64 uspace_fwh; + struct ehca_cq *send_cq; + struct ehca_cq *recv_cq; + unsigned int sqerr_purgeflag; + struct hlist_node list_entries; +}; + +/* must be power of 2 */ +#define QP_HASHTAB_LEN 8 + +struct ehca_cq { + struct ib_cq ib_cq; + struct ipz_queue ipz_queue; + struct h_galpas galpas; + spinlock_t spinlock; + u32 cq_number; + u32 token; + u32 nr_of_entries; + struct ipz_cq_handle ipz_cq_handle; + struct ehca_pfcq pf; + spinlock_t cb_lock; + u64 uspace_queue; + u64 uspace_fwh; + struct hlist_head qp_hashtab[QP_HASHTAB_LEN]; + struct list_head entry; + u32 nr_callbacks; + spinlock_t task_lock; + u32 ownpid; +}; + +enum ehca_mr_flag { + EHCA_MR_FLAG_FMR = 0x80000000, /* FMR, created with ehca_alloc_fmr */ + EHCA_MR_FLAG_MAXMR = 0x40000000, /* max-MR */ +}; + +struct ehca_mr { + union { + struct ib_mr ib_mr; /* must always be first in ehca_mr */ + struct ib_fmr ib_fmr; /* must always be first in ehca_mr */ + } ib; + spinlock_t mrlock; + + enum ehca_mr_flag flags; + u32 num_pages; /* number of MR pages */ + u32 num_4k; /* number of 4k "page" portions to form MR */ + int acl; /* ACL (stored here for usage in reregister) */ + u64 *start; /* virtual start address (stored here for */ + /* usage in reregister) */ + u64 size; /* size (stored here for usage in reregister) */ + u32 fmr_page_size; /* page size for FMR */ + u32 fmr_max_pages; /* max pages for FMR */ + u32 fmr_max_maps; /* max outstanding maps for FMR */ + u32 fmr_map_cnt; /* map counter for FMR */ + /* fw specific data */ + struct ipz_mrmw_handle ipz_mr_handle; /* MR handle for h-calls */ + struct h_galpas galpas; + /* data for userspace bridge */ + u32 nr_of_pages; + void *pagearray; +}; + +struct ehca_mw { + struct ib_mw ib_mw; /* gen2 mw, must always be first in ehca_mw */ + spinlock_t mwlock; + + u8 never_bound; /* indication MW was never bound */ + struct ipz_mrmw_handle ipz_mw_handle; /* MW handle for h-calls */ + struct h_galpas galpas; +}; + +enum ehca_mr_pgi_type { + EHCA_MR_PGI_PHYS = 1, /* type of ehca_reg_phys_mr, + * ehca_rereg_phys_mr, + * ehca_reg_internal_maxmr */ + EHCA_MR_PGI_USER = 2, /* type of ehca_reg_user_mr */ + EHCA_MR_PGI_FMR = 3 /* type of ehca_map_phys_fmr */ +}; + +struct ehca_mr_pginfo { + enum ehca_mr_pgi_type type; + u64 num_pages; + u64 page_cnt; + u64 num_4k; /* number of 4k "page" portions */ + u64 page_4k_cnt; /* counter for 4k "page" portions */ + u64 next_4k; /* next 4k "page" portion in buffer/chunk/listelem */ + + /* type EHCA_MR_PGI_PHYS section */ + int num_phys_buf; + struct ib_phys_buf *phys_buf_array; + u64 next_buf; + + /* type EHCA_MR_PGI_USER section */ + struct ib_umem *region; + struct ib_umem_chunk *next_chunk; + u64 next_nmap; + + /* type EHCA_MR_PGI_FMR section */ + u64 *page_list; + u64 next_listelem; + /* next_4k also used within EHCA_MR_PGI_FMR */ +}; + +/* output parameters for MR/FMR hipz calls */ +struct ehca_mr_hipzout_parms { + struct ipz_mrmw_handle handle; + u32 lkey; + u32 rkey; + u64 len; + u64 vaddr; + u32 acl; +}; + +/* output parameters for MW hipz calls */ +struct ehca_mw_hipzout_parms { + struct ipz_mrmw_handle handle; + u32 rkey; +}; + +struct ehca_av { + struct ib_ah ib_ah; + struct ehca_ud_av av; +}; + +struct ehca_ucontext { + struct ib_ucontext ib_ucontext; +}; + +struct ehca_module *ehca_module_new(void); + +int ehca_module_delete(struct ehca_module *me); + +int ehca_eq_ctor(struct ehca_eq *eq); + +int ehca_eq_dtor(struct ehca_eq *eq); + +struct ehca_shca *ehca_shca_new(void); + +int ehca_shca_delete(struct ehca_shca *me); + +struct ehca_sport *ehca_sport_new(struct ehca_shca *anchor); + +int ehca_init_pd_cache(void); +void ehca_cleanup_pd_cache(void); +int ehca_init_cq_cache(void); +void ehca_cleanup_cq_cache(void); +int ehca_init_qp_cache(void); +void ehca_cleanup_qp_cache(void); +int ehca_init_av_cache(void); +void ehca_cleanup_av_cache(void); +int ehca_init_mrmw_cache(void); +void ehca_cleanup_mrmw_cache(void); + +extern spinlock_t ehca_qp_idr_lock; +extern spinlock_t ehca_cq_idr_lock; +extern struct idr ehca_qp_idr; +extern struct idr ehca_cq_idr; + +extern int ehca_static_rate; +extern int ehca_port_act_time; +extern int ehca_use_hp_mr; + +struct ipzu_queue_resp { + u64 queue; /* points to first queue entry */ + u32 qe_size; /* queue entry size */ + u32 act_nr_of_sg; + u32 queue_length; /* queue length allocated in bytes */ + u32 pagesize; + u32 toggle_state; + u32 dummy; /* padding for 8 byte alignment */ +}; + +struct ehca_create_cq_resp { + u32 cq_number; + u32 token; + struct ipzu_queue_resp ipz_queue; + struct h_galpas galpas; +}; + +struct ehca_create_qp_resp { + u32 qp_num; + u32 token; + u32 qp_type; + u32 qkey; + /* qp_num assigned by ehca: sqp0/1 may have got different numbers */ + u32 real_qp_num; + u32 dummy; /* padding for 8 byte alignment */ + struct ipzu_queue_resp ipz_squeue; + struct ipzu_queue_resp ipz_rqueue; + struct h_galpas galpas; +}; + +struct ehca_alloc_cq_parms { + u32 nr_cqe; + u32 act_nr_of_entries; + u32 act_pages; + struct ipz_eq_handle eq_handle; +}; + +struct ehca_alloc_qp_parms { + int servicetype; + int sigtype; + int daqp_ctrl; + int max_send_sge; + int max_recv_sge; + int ud_av_l_key_ctl; + + u16 act_nr_send_wqes; + u16 act_nr_recv_wqes; + u8 act_nr_recv_sges; + u8 act_nr_send_sges; + + u32 nr_rq_pages; + u32 nr_sq_pages; + + struct ipz_eq_handle ipz_eq_handle; + struct ipz_pd pd; +}; + +int ehca_cq_assign_qp(struct ehca_cq *cq, struct ehca_qp *qp); +int ehca_cq_unassign_qp(struct ehca_cq *cq, unsigned int qp_num); +struct ehca_qp* ehca_cq_get_qp(struct ehca_cq *cq, int qp_num); + +#endif diff --git a/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h b/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h new file mode 100644 index 00000000000..5665f213b81 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_classes_pSeries.h @@ -0,0 +1,236 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * pSeries interface definitions + * + * Authors: Waleri Fomin + * Christoph Raisch + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __EHCA_CLASSES_PSERIES_H__ +#define __EHCA_CLASSES_PSERIES_H__ + +#include "hcp_phyp.h" +#include "ipz_pt_fn.h" + + +struct ehca_pfqp { + struct ipz_qpt sqpt; + struct ipz_qpt rqpt; +}; + +struct ehca_pfcq { + struct ipz_qpt qpt; + u32 cqnr; +}; + +struct ehca_pfeq { + struct ipz_qpt qpt; + struct h_galpa galpa; + u32 eqnr; +}; + +struct ipz_adapter_handle { + u64 handle; +}; + +struct ipz_cq_handle { + u64 handle; +}; + +struct ipz_eq_handle { + u64 handle; +}; + +struct ipz_qp_handle { + u64 handle; +}; +struct ipz_mrmw_handle { + u64 handle; +}; + +struct ipz_pd { + u32 value; +}; + +struct hcp_modify_qp_control_block { + u32 qkey; /* 00 */ + u32 rdd; /* reliable datagram domain */ + u32 send_psn; /* 02 */ + u32 receive_psn; /* 03 */ + u32 prim_phys_port; /* 04 */ + u32 alt_phys_port; /* 05 */ + u32 prim_p_key_idx; /* 06 */ + u32 alt_p_key_idx; /* 07 */ + u32 rdma_atomic_ctrl; /* 08 */ + u32 qp_state; /* 09 */ + u32 reserved_10; /* 10 */ + u32 rdma_nr_atomic_resp_res; /* 11 */ + u32 path_migration_state; /* 12 */ + u32 rdma_atomic_outst_dest_qp; /* 13 */ + u32 dest_qp_nr; /* 14 */ + u32 min_rnr_nak_timer_field; /* 15 */ + u32 service_level; /* 16 */ + u32 send_grh_flag; /* 17 */ + u32 retry_count; /* 18 */ + u32 timeout; /* 19 */ + u32 path_mtu; /* 20 */ + u32 max_static_rate; /* 21 */ + u32 dlid; /* 22 */ + u32 rnr_retry_count; /* 23 */ + u32 source_path_bits; /* 24 */ + u32 traffic_class; /* 25 */ + u32 hop_limit; /* 26 */ + u32 source_gid_idx; /* 27 */ + u32 flow_label; /* 28 */ + u32 reserved_29; /* 29 */ + union { /* 30 */ + u64 dw[2]; + u8 byte[16]; + } dest_gid; + u32 service_level_al; /* 34 */ + u32 send_grh_flag_al; /* 35 */ + u32 retry_count_al; /* 36 */ + u32 timeout_al; /* 37 */ + u32 max_static_rate_al; /* 38 */ + u32 dlid_al; /* 39 */ + u32 rnr_retry_count_al; /* 40 */ + u32 source_path_bits_al; /* 41 */ + u32 traffic_class_al; /* 42 */ + u32 hop_limit_al; /* 43 */ + u32 source_gid_idx_al; /* 44 */ + u32 flow_label_al; /* 45 */ + u32 reserved_46; /* 46 */ + u32 reserved_47; /* 47 */ + union { /* 48 */ + u64 dw[2]; + u8 byte[16]; + } dest_gid_al; + u32 max_nr_outst_send_wr; /* 52 */ + u32 max_nr_outst_recv_wr; /* 53 */ + u32 disable_ete_credit_check; /* 54 */ + u32 qp_number; /* 55 */ + u64 send_queue_handle; /* 56 */ + u64 recv_queue_handle; /* 58 */ + u32 actual_nr_sges_in_sq_wqe; /* 60 */ + u32 actual_nr_sges_in_rq_wqe; /* 61 */ + u32 qp_enable; /* 62 */ + u32 curr_srq_limit; /* 63 */ + u64 qp_aff_asyn_ev_log_reg; /* 64 */ + u64 shared_rq_hndl; /* 66 */ + u64 trigg_doorbell_qp_hndl; /* 68 */ + u32 reserved_70_127[58]; /* 70 */ +}; + +#define MQPCB_MASK_QKEY EHCA_BMASK_IBM(0,0) +#define MQPCB_MASK_SEND_PSN EHCA_BMASK_IBM(2,2) +#define MQPCB_MASK_RECEIVE_PSN EHCA_BMASK_IBM(3,3) +#define MQPCB_MASK_PRIM_PHYS_PORT EHCA_BMASK_IBM(4,4) +#define MQPCB_PRIM_PHYS_PORT EHCA_BMASK_IBM(24,31) +#define MQPCB_MASK_ALT_PHYS_PORT EHCA_BMASK_IBM(5,5) +#define MQPCB_MASK_PRIM_P_KEY_IDX EHCA_BMASK_IBM(6,6) +#define MQPCB_PRIM_P_KEY_IDX EHCA_BMASK_IBM(24,31) +#define MQPCB_MASK_ALT_P_KEY_IDX EHCA_BMASK_IBM(7,7) +#define MQPCB_MASK_RDMA_ATOMIC_CTRL EHCA_BMASK_IBM(8,8) +#define MQPCB_MASK_QP_STATE EHCA_BMASK_IBM(9,9) +#define MQPCB_QP_STATE EHCA_BMASK_IBM(24,31) +#define MQPCB_MASK_RDMA_NR_ATOMIC_RESP_RES EHCA_BMASK_IBM(11,11) +#define MQPCB_MASK_PATH_MIGRATION_STATE EHCA_BMASK_IBM(12,12) +#define MQPCB_MASK_RDMA_ATOMIC_OUTST_DEST_QP EHCA_BMASK_IBM(13,13) +#define MQPCB_MASK_DEST_QP_NR EHCA_BMASK_IBM(14,14) +#define MQPCB_MASK_MIN_RNR_NAK_TIMER_FIELD EHCA_BMASK_IBM(15,15) +#define MQPCB_MASK_SERVICE_LEVEL EHCA_BMASK_IBM(16,16) +#define MQPCB_MASK_SEND_GRH_FLAG EHCA_BMASK_IBM(17,17) +#define MQPCB_MASK_RETRY_COUNT EHCA_BMASK_IBM(18,18) +#define MQPCB_MASK_TIMEOUT EHCA_BMASK_IBM(19,19) +#define MQPCB_MASK_PATH_MTU EHCA_BMASK_IBM(20,20) +#define MQPCB_PATH_MTU EHCA_BMASK_IBM(24,31) +#define MQPCB_MASK_MAX_STATIC_RATE EHCA_BMASK_IBM(21,21) +#define MQPCB_MAX_STATIC_RATE EHCA_BMASK_IBM(24,31) +#define MQPCB_MASK_DLID EHCA_BMASK_IBM(22,22) +#define MQPCB_DLID EHCA_BMASK_IBM(16,31) +#define MQPCB_MASK_RNR_RETRY_COUNT EHCA_BMASK_IBM(23,23) +#define MQPCB_RNR_RETRY_COUNT EHCA_BMASK_IBM(29,31) +#define MQPCB_MASK_SOURCE_PATH_BITS EHCA_BMASK_IBM(24,24) +#define MQPCB_SOURCE_PATH_BITS EHCA_BMASK_IBM(25,31) +#define MQPCB_MASK_TRAFFIC_CLASS EHCA_BMASK_IBM(25,25) +#define MQPCB_TRAFFIC_CLASS EHCA_BMASK_IBM(24,31) +#define MQPCB_MASK_HOP_LIMIT EHCA_BMASK_IBM(26,26) +#define MQPCB_HOP_LIMIT EHCA_BMASK_IBM(24,31) +#define MQPCB_MASK_SOURCE_GID_IDX EHCA_BMASK_IBM(27,27) +#define MQPCB_SOURCE_GID_IDX EHCA_BMASK_IBM(24,31) +#define MQPCB_MASK_FLOW_LABEL EHCA_BMASK_IBM(28,28) +#define MQPCB_FLOW_LABEL EHCA_BMASK_IBM(12,31) +#define MQPCB_MASK_DEST_GID EHCA_BMASK_IBM(30,30) +#define MQPCB_MASK_SERVICE_LEVEL_AL EHCA_BMASK_IBM(31,31) +#define MQPCB_SERVICE_LEVEL_AL EHCA_BMASK_IBM(28,31) +#define MQPCB_MASK_SEND_GRH_FLAG_AL EHCA_BMASK_IBM(32,32) +#define MQPCB_SEND_GRH_FLAG_AL EHCA_BMASK_IBM(31,31) +#define MQPCB_MASK_RETRY_COUNT_AL EHCA_BMASK_IBM(33,33) +#define MQPCB_RETRY_COUNT_AL EHCA_BMASK_IBM(29,31) +#define MQPCB_MASK_TIMEOUT_AL EHCA_BMASK_IBM(34,34) +#define MQPCB_TIMEOUT_AL EHCA_BMASK_IBM(27,31) +#define MQPCB_MASK_MAX_STATIC_RATE_AL EHCA_BMASK_IBM(35,35) +#define MQPCB_MAX_STATIC_RATE_AL EHCA_BMASK_IBM(24,31) +#define MQPCB_MASK_DLID_AL EHCA_BMASK_IBM(36,36) +#define MQPCB_DLID_AL EHCA_BMASK_IBM(16,31) +#define MQPCB_MASK_RNR_RETRY_COUNT_AL EHCA_BMASK_IBM(37,37) +#define MQPCB_RNR_RETRY_COUNT_AL EHCA_BMASK_IBM(29,31) +#define MQPCB_MASK_SOURCE_PATH_BITS_AL EHCA_BMASK_IBM(38,38) +#define MQPCB_SOURCE_PATH_BITS_AL EHCA_BMASK_IBM(25,31) +#define MQPCB_MASK_TRAFFIC_CLASS_AL EHCA_BMASK_IBM(39,39) +#define MQPCB_TRAFFIC_CLASS_AL EHCA_BMASK_IBM(24,31) +#define MQPCB_MASK_HOP_LIMIT_AL EHCA_BMASK_IBM(40,40) +#define MQPCB_HOP_LIMIT_AL EHCA_BMASK_IBM(24,31) +#define MQPCB_MASK_SOURCE_GID_IDX_AL EHCA_BMASK_IBM(41,41) +#define MQPCB_SOURCE_GID_IDX_AL EHCA_BMASK_IBM(24,31) +#define MQPCB_MASK_FLOW_LABEL_AL EHCA_BMASK_IBM(42,42) +#define MQPCB_FLOW_LABEL_AL EHCA_BMASK_IBM(12,31) +#define MQPCB_MASK_DEST_GID_AL EHCA_BMASK_IBM(44,44) +#define MQPCB_MASK_MAX_NR_OUTST_SEND_WR EHCA_BMASK_IBM(45,45) +#define MQPCB_MAX_NR_OUTST_SEND_WR EHCA_BMASK_IBM(16,31) +#define MQPCB_MASK_MAX_NR_OUTST_RECV_WR EHCA_BMASK_IBM(46,46) +#define MQPCB_MAX_NR_OUTST_RECV_WR EHCA_BMASK_IBM(16,31) +#define MQPCB_MASK_DISABLE_ETE_CREDIT_CHECK EHCA_BMASK_IBM(47,47) +#define MQPCB_DISABLE_ETE_CREDIT_CHECK EHCA_BMASK_IBM(31,31) +#define MQPCB_QP_NUMBER EHCA_BMASK_IBM(8,31) +#define MQPCB_MASK_QP_ENABLE EHCA_BMASK_IBM(48,48) +#define MQPCB_QP_ENABLE EHCA_BMASK_IBM(31,31) +#define MQPCB_MASK_CURR_SQR_LIMIT EHCA_BMASK_IBM(49,49) +#define MQPCB_CURR_SQR_LIMIT EHCA_BMASK_IBM(15,31) +#define MQPCB_MASK_QP_AFF_ASYN_EV_LOG_REG EHCA_BMASK_IBM(50,50) +#define MQPCB_MASK_SHARED_RQ_HNDL EHCA_BMASK_IBM(51,51) + +#endif /* __EHCA_CLASSES_PSERIES_H__ */ diff --git a/drivers/infiniband/hw/ehca/ehca_cq.c b/drivers/infiniband/hw/ehca/ehca_cq.c new file mode 100644 index 00000000000..458fe19648a --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_cq.c @@ -0,0 +1,427 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * Completion queue handling + * + * Authors: Waleri Fomin + * Khadija Souissi + * Reinhard Ernst + * Heiko J Schick + * Hoang-Nam Nguyen + * + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include + +#include "ehca_iverbs.h" +#include "ehca_classes.h" +#include "ehca_irq.h" +#include "hcp_if.h" + +static struct kmem_cache *cq_cache; + +int ehca_cq_assign_qp(struct ehca_cq *cq, struct ehca_qp *qp) +{ + unsigned int qp_num = qp->real_qp_num; + unsigned int key = qp_num & (QP_HASHTAB_LEN-1); + unsigned long spl_flags; + + spin_lock_irqsave(&cq->spinlock, spl_flags); + hlist_add_head(&qp->list_entries, &cq->qp_hashtab[key]); + spin_unlock_irqrestore(&cq->spinlock, spl_flags); + + ehca_dbg(cq->ib_cq.device, "cq_num=%x real_qp_num=%x", + cq->cq_number, qp_num); + + return 0; +} + +int ehca_cq_unassign_qp(struct ehca_cq *cq, unsigned int real_qp_num) +{ + int ret = -EINVAL; + unsigned int key = real_qp_num & (QP_HASHTAB_LEN-1); + struct hlist_node *iter; + struct ehca_qp *qp; + unsigned long spl_flags; + + spin_lock_irqsave(&cq->spinlock, spl_flags); + hlist_for_each(iter, &cq->qp_hashtab[key]) { + qp = hlist_entry(iter, struct ehca_qp, list_entries); + if (qp->real_qp_num == real_qp_num) { + hlist_del(iter); + ehca_dbg(cq->ib_cq.device, + "removed qp from cq .cq_num=%x real_qp_num=%x", + cq->cq_number, real_qp_num); + ret = 0; + break; + } + } + spin_unlock_irqrestore(&cq->spinlock, spl_flags); + if (ret) + ehca_err(cq->ib_cq.device, + "qp not found cq_num=%x real_qp_num=%x", + cq->cq_number, real_qp_num); + + return ret; +} + +struct ehca_qp* ehca_cq_get_qp(struct ehca_cq *cq, int real_qp_num) +{ + struct ehca_qp *ret = NULL; + unsigned int key = real_qp_num & (QP_HASHTAB_LEN-1); + struct hlist_node *iter; + struct ehca_qp *qp; + hlist_for_each(iter, &cq->qp_hashtab[key]) { + qp = hlist_entry(iter, struct ehca_qp, list_entries); + if (qp->real_qp_num == real_qp_num) { + ret = qp; + break; + } + } + return ret; +} + +struct ib_cq *ehca_create_cq(struct ib_device *device, int cqe, + struct ib_ucontext *context, + struct ib_udata *udata) +{ + static const u32 additional_cqe = 20; + struct ib_cq *cq; + struct ehca_cq *my_cq; + struct ehca_shca *shca = + container_of(device, struct ehca_shca, ib_device); + struct ipz_adapter_handle adapter_handle; + struct ehca_alloc_cq_parms param; /* h_call's out parameters */ + struct h_galpa gal; + void *vpage; + u32 counter; + u64 rpage, cqx_fec, h_ret; + int ipz_rc, ret, i; + unsigned long flags; + + if (cqe >= 0xFFFFFFFF - 64 - additional_cqe) + return ERR_PTR(-EINVAL); + + my_cq = kmem_cache_alloc(cq_cache, SLAB_KERNEL); + if (!my_cq) { + ehca_err(device, "Out of memory for ehca_cq struct device=%p", + device); + return ERR_PTR(-ENOMEM); + } + + memset(my_cq, 0, sizeof(struct ehca_cq)); + memset(¶m, 0, sizeof(struct ehca_alloc_cq_parms)); + + spin_lock_init(&my_cq->spinlock); + spin_lock_init(&my_cq->cb_lock); + spin_lock_init(&my_cq->task_lock); + my_cq->ownpid = current->tgid; + + cq = &my_cq->ib_cq; + + adapter_handle = shca->ipz_hca_handle; + param.eq_handle = shca->eq.ipz_eq_handle; + + do { + if (!idr_pre_get(&ehca_cq_idr, GFP_KERNEL)) { + cq = ERR_PTR(-ENOMEM); + ehca_err(device, "Can't reserve idr nr. device=%p", + device); + goto create_cq_exit1; + } + + spin_lock_irqsave(&ehca_cq_idr_lock, flags); + ret = idr_get_new(&ehca_cq_idr, my_cq, &my_cq->token); + spin_unlock_irqrestore(&ehca_cq_idr_lock, flags); + + } while (ret == -EAGAIN); + + if (ret) { + cq = ERR_PTR(-ENOMEM); + ehca_err(device, "Can't allocate new idr entry. device=%p", + device); + goto create_cq_exit1; + } + + /* + * CQs maximum depth is 4GB-64, but we need additional 20 as buffer + * for receiving errors CQEs. + */ + param.nr_cqe = cqe + additional_cqe; + h_ret = hipz_h_alloc_resource_cq(adapter_handle, my_cq, ¶m); + + if (h_ret != H_SUCCESS) { + ehca_err(device, "hipz_h_alloc_resource_cq() failed " + "h_ret=%lx device=%p", h_ret, device); + cq = ERR_PTR(ehca2ib_return_code(h_ret)); + goto create_cq_exit2; + } + + ipz_rc = ipz_queue_ctor(&my_cq->ipz_queue, param.act_pages, + EHCA_PAGESIZE, sizeof(struct ehca_cqe), 0); + if (!ipz_rc) { + ehca_err(device, "ipz_queue_ctor() failed ipz_rc=%x device=%p", + ipz_rc, device); + cq = ERR_PTR(-EINVAL); + goto create_cq_exit3; + } + + for (counter = 0; counter < param.act_pages; counter++) { + vpage = ipz_qpageit_get_inc(&my_cq->ipz_queue); + if (!vpage) { + ehca_err(device, "ipz_qpageit_get_inc() " + "returns NULL device=%p", device); + cq = ERR_PTR(-EAGAIN); + goto create_cq_exit4; + } + rpage = virt_to_abs(vpage); + + h_ret = hipz_h_register_rpage_cq(adapter_handle, + my_cq->ipz_cq_handle, + &my_cq->pf, + 0, + 0, + rpage, + 1, + my_cq->galpas. + kernel); + + if (h_ret < H_SUCCESS) { + ehca_err(device, "hipz_h_register_rpage_cq() failed " + "ehca_cq=%p cq_num=%x h_ret=%lx counter=%i " + "act_pages=%i", my_cq, my_cq->cq_number, + h_ret, counter, param.act_pages); + cq = ERR_PTR(-EINVAL); + goto create_cq_exit4; + } + + if (counter == (param.act_pages - 1)) { + vpage = ipz_qpageit_get_inc(&my_cq->ipz_queue); + if ((h_ret != H_SUCCESS) || vpage) { + ehca_err(device, "Registration of pages not " + "complete ehca_cq=%p cq_num=%x " + "h_ret=%lx", my_cq, my_cq->cq_number, + h_ret); + cq = ERR_PTR(-EAGAIN); + goto create_cq_exit4; + } + } else { + if (h_ret != H_PAGE_REGISTERED) { + ehca_err(device, "Registration of page failed " + "ehca_cq=%p cq_num=%x h_ret=%lx" + "counter=%i act_pages=%i", + my_cq, my_cq->cq_number, + h_ret, counter, param.act_pages); + cq = ERR_PTR(-ENOMEM); + goto create_cq_exit4; + } + } + } + + ipz_qeit_reset(&my_cq->ipz_queue); + + gal = my_cq->galpas.kernel; + cqx_fec = hipz_galpa_load(gal, CQTEMM_OFFSET(cqx_fec)); + ehca_dbg(device, "ehca_cq=%p cq_num=%x CQX_FEC=%lx", + my_cq, my_cq->cq_number, cqx_fec); + + my_cq->ib_cq.cqe = my_cq->nr_of_entries = + param.act_nr_of_entries - additional_cqe; + my_cq->cq_number = (my_cq->ipz_cq_handle.handle) & 0xffff; + + for (i = 0; i < QP_HASHTAB_LEN; i++) + INIT_HLIST_HEAD(&my_cq->qp_hashtab[i]); + + if (context) { + struct ipz_queue *ipz_queue = &my_cq->ipz_queue; + struct ehca_create_cq_resp resp; + struct vm_area_struct *vma; + memset(&resp, 0, sizeof(resp)); + resp.cq_number = my_cq->cq_number; + resp.token = my_cq->token; + resp.ipz_queue.qe_size = ipz_queue->qe_size; + resp.ipz_queue.act_nr_of_sg = ipz_queue->act_nr_of_sg; + resp.ipz_queue.queue_length = ipz_queue->queue_length; + resp.ipz_queue.pagesize = ipz_queue->pagesize; + resp.ipz_queue.toggle_state = ipz_queue->toggle_state; + ret = ehca_mmap_nopage(((u64)(my_cq->token) << 32) | 0x12000000, + ipz_queue->queue_length, + (void**)&resp.ipz_queue.queue, + &vma); + if (ret) { + ehca_err(device, "Could not mmap queue pages"); + cq = ERR_PTR(ret); + goto create_cq_exit4; + } + my_cq->uspace_queue = resp.ipz_queue.queue; + resp.galpas = my_cq->galpas; + ret = ehca_mmap_register(my_cq->galpas.user.fw_handle, + (void**)&resp.galpas.kernel.fw_handle, + &vma); + if (ret) { + ehca_err(device, "Could not mmap fw_handle"); + cq = ERR_PTR(ret); + goto create_cq_exit5; + } + my_cq->uspace_fwh = (u64)resp.galpas.kernel.fw_handle; + if (ib_copy_to_udata(udata, &resp, sizeof(resp))) { + ehca_err(device, "Copy to udata failed."); + goto create_cq_exit6; + } + } + + return cq; + +create_cq_exit6: + ehca_munmap(my_cq->uspace_fwh, EHCA_PAGESIZE); + +create_cq_exit5: + ehca_munmap(my_cq->uspace_queue, my_cq->ipz_queue.queue_length); + +create_cq_exit4: + ipz_queue_dtor(&my_cq->ipz_queue); + +create_cq_exit3: + h_ret = hipz_h_destroy_cq(adapter_handle, my_cq, 1); + if (h_ret != H_SUCCESS) + ehca_err(device, "hipz_h_destroy_cq() failed ehca_cq=%p " + "cq_num=%x h_ret=%lx", my_cq, my_cq->cq_number, h_ret); + +create_cq_exit2: + spin_lock_irqsave(&ehca_cq_idr_lock, flags); + idr_remove(&ehca_cq_idr, my_cq->token); + spin_unlock_irqrestore(&ehca_cq_idr_lock, flags); + +create_cq_exit1: + kmem_cache_free(cq_cache, my_cq); + + return cq; +} + +int ehca_destroy_cq(struct ib_cq *cq) +{ + u64 h_ret; + int ret; + struct ehca_cq *my_cq = container_of(cq, struct ehca_cq, ib_cq); + int cq_num = my_cq->cq_number; + struct ib_device *device = cq->device; + struct ehca_shca *shca = container_of(device, struct ehca_shca, + ib_device); + struct ipz_adapter_handle adapter_handle = shca->ipz_hca_handle; + u32 cur_pid = current->tgid; + unsigned long flags; + + spin_lock_irqsave(&ehca_cq_idr_lock, flags); + while (my_cq->nr_callbacks) + yield(); + + idr_remove(&ehca_cq_idr, my_cq->token); + spin_unlock_irqrestore(&ehca_cq_idr_lock, flags); + + if (my_cq->uspace_queue && my_cq->ownpid != cur_pid) { + ehca_err(device, "Invalid caller pid=%x ownpid=%x", + cur_pid, my_cq->ownpid); + return -EINVAL; + } + + /* un-mmap if vma alloc */ + if (my_cq->uspace_queue ) { + ret = ehca_munmap(my_cq->uspace_queue, + my_cq->ipz_queue.queue_length); + if (ret) + ehca_err(device, "Could not munmap queue ehca_cq=%p " + "cq_num=%x", my_cq, cq_num); + ret = ehca_munmap(my_cq->uspace_fwh, EHCA_PAGESIZE); + if (ret) + ehca_err(device, "Could not munmap fwh ehca_cq=%p " + "cq_num=%x", my_cq, cq_num); + } + + h_ret = hipz_h_destroy_cq(adapter_handle, my_cq, 0); + if (h_ret == H_R_STATE) { + /* cq in err: read err data and destroy it forcibly */ + ehca_dbg(device, "ehca_cq=%p cq_num=%x ressource=%lx in err " + "state. Try to delete it forcibly.", + my_cq, cq_num, my_cq->ipz_cq_handle.handle); + ehca_error_data(shca, my_cq, my_cq->ipz_cq_handle.handle); + h_ret = hipz_h_destroy_cq(adapter_handle, my_cq, 1); + if (h_ret == H_SUCCESS) + ehca_dbg(device, "cq_num=%x deleted successfully.", + cq_num); + } + if (h_ret != H_SUCCESS) { + ehca_err(device, "hipz_h_destroy_cq() failed h_ret=%lx " + "ehca_cq=%p cq_num=%x", h_ret, my_cq, cq_num); + return ehca2ib_return_code(h_ret); + } + ipz_queue_dtor(&my_cq->ipz_queue); + kmem_cache_free(cq_cache, my_cq); + + return 0; +} + +int ehca_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata) +{ + struct ehca_cq *my_cq = container_of(cq, struct ehca_cq, ib_cq); + u32 cur_pid = current->tgid; + + if (my_cq->uspace_queue && my_cq->ownpid != cur_pid) { + ehca_err(cq->device, "Invalid caller pid=%x ownpid=%x", + cur_pid, my_cq->ownpid); + return -EINVAL; + } + + /* TODO: proper resize needs to be done */ + ehca_err(cq->device, "not implemented yet"); + + return -EFAULT; +} + +int ehca_init_cq_cache(void) +{ + cq_cache = kmem_cache_create("ehca_cache_cq", + sizeof(struct ehca_cq), 0, + SLAB_HWCACHE_ALIGN, + NULL, NULL); + if (!cq_cache) + return -ENOMEM; + return 0; +} + +void ehca_cleanup_cq_cache(void) +{ + if (cq_cache) + kmem_cache_destroy(cq_cache); +} diff --git a/drivers/infiniband/hw/ehca/ehca_eq.c b/drivers/infiniband/hw/ehca/ehca_eq.c new file mode 100644 index 00000000000..5281dec66f1 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_eq.c @@ -0,0 +1,185 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * Event queue handling + * + * Authors: Waleri Fomin + * Khadija Souissi + * Reinhard Ernst + * Heiko J Schick + * Hoang-Nam Nguyen + * + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "ehca_classes.h" +#include "ehca_irq.h" +#include "ehca_iverbs.h" +#include "ehca_qes.h" +#include "hcp_if.h" +#include "ipz_pt_fn.h" + +int ehca_create_eq(struct ehca_shca *shca, + struct ehca_eq *eq, + const enum ehca_eq_type type, const u32 length) +{ + u64 ret; + u32 nr_pages; + u32 i; + void *vpage; + struct ib_device *ib_dev = &shca->ib_device; + + spin_lock_init(&eq->spinlock); + eq->is_initialized = 0; + + if (type != EHCA_EQ && type != EHCA_NEQ) { + ehca_err(ib_dev, "Invalid EQ type %x. eq=%p", type, eq); + return -EINVAL; + } + if (!length) { + ehca_err(ib_dev, "EQ length must not be zero. eq=%p", eq); + return -EINVAL; + } + + ret = hipz_h_alloc_resource_eq(shca->ipz_hca_handle, + &eq->pf, + type, + length, + &eq->ipz_eq_handle, + &eq->length, + &nr_pages, &eq->ist); + + if (ret != H_SUCCESS) { + ehca_err(ib_dev, "Can't allocate EQ/NEQ. eq=%p", eq); + return -EINVAL; + } + + ret = ipz_queue_ctor(&eq->ipz_queue, nr_pages, + EHCA_PAGESIZE, sizeof(struct ehca_eqe), 0); + if (!ret) { + ehca_err(ib_dev, "Can't allocate EQ pages eq=%p", eq); + goto create_eq_exit1; + } + + for (i = 0; i < nr_pages; i++) { + u64 rpage; + + if (!(vpage = ipz_qpageit_get_inc(&eq->ipz_queue))) { + ret = H_RESOURCE; + goto create_eq_exit2; + } + + rpage = virt_to_abs(vpage); + ret = hipz_h_register_rpage_eq(shca->ipz_hca_handle, + eq->ipz_eq_handle, + &eq->pf, + 0, 0, rpage, 1); + + if (i == (nr_pages - 1)) { + /* last page */ + vpage = ipz_qpageit_get_inc(&eq->ipz_queue); + if (ret != H_SUCCESS || vpage) + goto create_eq_exit2; + } else { + if (ret != H_PAGE_REGISTERED || !vpage) + goto create_eq_exit2; + } + } + + ipz_qeit_reset(&eq->ipz_queue); + + /* register interrupt handlers and initialize work queues */ + if (type == EHCA_EQ) { + ret = ibmebus_request_irq(NULL, eq->ist, ehca_interrupt_eq, + SA_INTERRUPT, "ehca_eq", + (void *)shca); + if (ret < 0) + ehca_err(ib_dev, "Can't map interrupt handler."); + + tasklet_init(&eq->interrupt_task, ehca_tasklet_eq, (long)shca); + } else if (type == EHCA_NEQ) { + ret = ibmebus_request_irq(NULL, eq->ist, ehca_interrupt_neq, + SA_INTERRUPT, "ehca_neq", + (void *)shca); + if (ret < 0) + ehca_err(ib_dev, "Can't map interrupt handler."); + + tasklet_init(&eq->interrupt_task, ehca_tasklet_neq, (long)shca); + } + + eq->is_initialized = 1; + + return 0; + +create_eq_exit2: + ipz_queue_dtor(&eq->ipz_queue); + +create_eq_exit1: + hipz_h_destroy_eq(shca->ipz_hca_handle, eq); + + return -EINVAL; +} + +void *ehca_poll_eq(struct ehca_shca *shca, struct ehca_eq *eq) +{ + unsigned long flags; + void *eqe; + + spin_lock_irqsave(&eq->spinlock, flags); + eqe = ipz_eqit_eq_get_inc_valid(&eq->ipz_queue); + spin_unlock_irqrestore(&eq->spinlock, flags); + + return eqe; +} + +int ehca_destroy_eq(struct ehca_shca *shca, struct ehca_eq *eq) +{ + unsigned long flags; + u64 h_ret; + + spin_lock_irqsave(&eq->spinlock, flags); + ibmebus_free_irq(NULL, eq->ist, (void *)shca); + + h_ret = hipz_h_destroy_eq(shca->ipz_hca_handle, eq); + + spin_unlock_irqrestore(&eq->spinlock, flags); + + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "Can't free EQ resources."); + return -EINVAL; + } + ipz_queue_dtor(&eq->ipz_queue); + + return 0; +} diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c new file mode 100644 index 00000000000..5eae6ac4842 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_hca.c @@ -0,0 +1,241 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * HCA query functions + * + * Authors: Heiko J Schick + * Christoph Raisch + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "ehca_tools.h" +#include "hcp_if.h" + +int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props) +{ + int ret = 0; + struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, + ib_device); + struct hipz_query_hca *rblock; + + rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); + if (!rblock) { + ehca_err(&shca->ib_device, "Can't allocate rblock memory."); + return -ENOMEM; + } + + if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) { + ehca_err(&shca->ib_device, "Can't query device properties"); + ret = -EINVAL; + goto query_device1; + } + + memset(props, 0, sizeof(struct ib_device_attr)); + props->fw_ver = rblock->hw_ver; + props->max_mr_size = rblock->max_mr_size; + props->vendor_id = rblock->vendor_id >> 8; + props->vendor_part_id = rblock->vendor_part_id >> 16; + props->hw_ver = rblock->hw_ver; + props->max_qp = min_t(int, rblock->max_qp, INT_MAX); + props->max_qp_wr = min_t(int, rblock->max_wqes_wq, INT_MAX); + props->max_sge = min_t(int, rblock->max_sge, INT_MAX); + props->max_sge_rd = min_t(int, rblock->max_sge_rd, INT_MAX); + props->max_cq = min_t(int, rblock->max_cq, INT_MAX); + props->max_cqe = min_t(int, rblock->max_cqe, INT_MAX); + props->max_mr = min_t(int, rblock->max_mr, INT_MAX); + props->max_mw = min_t(int, rblock->max_mw, INT_MAX); + props->max_pd = min_t(int, rblock->max_pd, INT_MAX); + props->max_ah = min_t(int, rblock->max_ah, INT_MAX); + props->max_fmr = min_t(int, rblock->max_mr, INT_MAX); + props->max_srq = 0; + props->max_srq_wr = 0; + props->max_srq_sge = 0; + props->max_pkeys = 16; + props->local_ca_ack_delay + = rblock->local_ca_ack_delay; + props->max_raw_ipv6_qp + = min_t(int, rblock->max_raw_ipv6_qp, INT_MAX); + props->max_raw_ethy_qp + = min_t(int, rblock->max_raw_ethy_qp, INT_MAX); + props->max_mcast_grp + = min_t(int, rblock->max_mcast_grp, INT_MAX); + props->max_mcast_qp_attach + = min_t(int, rblock->max_mcast_qp_attach, INT_MAX); + props->max_total_mcast_qp_attach + = min_t(int, rblock->max_total_mcast_qp_attach, INT_MAX); + +query_device1: + kfree(rblock); + + return ret; +} + +int ehca_query_port(struct ib_device *ibdev, + u8 port, struct ib_port_attr *props) +{ + int ret = 0; + struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, + ib_device); + struct hipz_query_port *rblock; + + rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); + if (!rblock) { + ehca_err(&shca->ib_device, "Can't allocate rblock memory."); + return -ENOMEM; + } + + if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + ehca_err(&shca->ib_device, "Can't query port properties"); + ret = -EINVAL; + goto query_port1; + } + + memset(props, 0, sizeof(struct ib_port_attr)); + props->state = rblock->state; + + switch (rblock->max_mtu) { + case 0x1: + props->active_mtu = props->max_mtu = IB_MTU_256; + break; + case 0x2: + props->active_mtu = props->max_mtu = IB_MTU_512; + break; + case 0x3: + props->active_mtu = props->max_mtu = IB_MTU_1024; + break; + case 0x4: + props->active_mtu = props->max_mtu = IB_MTU_2048; + break; + case 0x5: + props->active_mtu = props->max_mtu = IB_MTU_4096; + break; + default: + ehca_err(&shca->ib_device, "Unknown MTU size: %x.", + rblock->max_mtu); + break; + } + + props->gid_tbl_len = rblock->gid_tbl_len; + props->max_msg_sz = rblock->max_msg_sz; + props->bad_pkey_cntr = rblock->bad_pkey_cntr; + props->qkey_viol_cntr = rblock->qkey_viol_cntr; + props->pkey_tbl_len = rblock->pkey_tbl_len; + props->lid = rblock->lid; + props->sm_lid = rblock->sm_lid; + props->lmc = rblock->lmc; + props->sm_sl = rblock->sm_sl; + props->subnet_timeout = rblock->subnet_timeout; + props->init_type_reply = rblock->init_type_reply; + + props->active_width = IB_WIDTH_12X; + props->active_speed = 0x1; + +query_port1: + kfree(rblock); + + return ret; +} + +int ehca_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) +{ + int ret = 0; + struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device); + struct hipz_query_port *rblock; + + if (index > 16) { + ehca_err(&shca->ib_device, "Invalid index: %x.", index); + return -EINVAL; + } + + rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); + if (!rblock) { + ehca_err(&shca->ib_device, "Can't allocate rblock memory."); + return -ENOMEM; + } + + if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + ehca_err(&shca->ib_device, "Can't query port properties"); + ret = -EINVAL; + goto query_pkey1; + } + + memcpy(pkey, &rblock->pkey_entries + index, sizeof(u16)); + +query_pkey1: + kfree(rblock); + + return ret; +} + +int ehca_query_gid(struct ib_device *ibdev, u8 port, + int index, union ib_gid *gid) +{ + int ret = 0; + struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, + ib_device); + struct hipz_query_port *rblock; + + if (index > 255) { + ehca_err(&shca->ib_device, "Invalid index: %x.", index); + return -EINVAL; + } + + rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); + if (!rblock) { + ehca_err(&shca->ib_device, "Can't allocate rblock memory."); + return -ENOMEM; + } + + if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) { + ehca_err(&shca->ib_device, "Can't query port properties"); + ret = -EINVAL; + goto query_gid1; + } + + memcpy(&gid->raw[0], &rblock->gid_prefix, sizeof(u64)); + memcpy(&gid->raw[8], &rblock->guid_entries[index], sizeof(u64)); + +query_gid1: + kfree(rblock); + + return ret; +} + +int ehca_modify_port(struct ib_device *ibdev, + u8 port, int port_modify_mask, + struct ib_port_modify *props) +{ + /* Not implemented yet */ + return -EFAULT; +} diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c new file mode 100644 index 00000000000..2a65b5be197 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_irq.c @@ -0,0 +1,762 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * Functions for EQs, NEQs and interrupts + * + * Authors: Heiko J Schick + * Khadija Souissi + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "ehca_classes.h" +#include "ehca_irq.h" +#include "ehca_iverbs.h" +#include "ehca_tools.h" +#include "hcp_if.h" +#include "hipz_fns.h" + +#define EQE_COMPLETION_EVENT EHCA_BMASK_IBM(1,1) +#define EQE_CQ_QP_NUMBER EHCA_BMASK_IBM(8,31) +#define EQE_EE_IDENTIFIER EHCA_BMASK_IBM(2,7) +#define EQE_CQ_NUMBER EHCA_BMASK_IBM(8,31) +#define EQE_QP_NUMBER EHCA_BMASK_IBM(8,31) +#define EQE_QP_TOKEN EHCA_BMASK_IBM(32,63) +#define EQE_CQ_TOKEN EHCA_BMASK_IBM(32,63) + +#define NEQE_COMPLETION_EVENT EHCA_BMASK_IBM(1,1) +#define NEQE_EVENT_CODE EHCA_BMASK_IBM(2,7) +#define NEQE_PORT_NUMBER EHCA_BMASK_IBM(8,15) +#define NEQE_PORT_AVAILABILITY EHCA_BMASK_IBM(16,16) + +#define ERROR_DATA_LENGTH EHCA_BMASK_IBM(52,63) +#define ERROR_DATA_TYPE EHCA_BMASK_IBM(0,7) + +#ifdef CONFIG_INFINIBAND_EHCA_SCALING + +static void queue_comp_task(struct ehca_cq *__cq); + +static struct ehca_comp_pool* pool; +static struct notifier_block comp_pool_callback_nb; + +#endif + +static inline void comp_event_callback(struct ehca_cq *cq) +{ + if (!cq->ib_cq.comp_handler) + return; + + spin_lock(&cq->cb_lock); + cq->ib_cq.comp_handler(&cq->ib_cq, cq->ib_cq.cq_context); + spin_unlock(&cq->cb_lock); + + return; +} + +static void print_error_data(struct ehca_shca * shca, void* data, + u64* rblock, int length) +{ + u64 type = EHCA_BMASK_GET(ERROR_DATA_TYPE, rblock[2]); + u64 resource = rblock[1]; + + switch (type) { + case 0x1: /* Queue Pair */ + { + struct ehca_qp *qp = (struct ehca_qp*)data; + + /* only print error data if AER is set */ + if (rblock[6] == 0) + return; + + ehca_err(&shca->ib_device, + "QP 0x%x (resource=%lx) has errors.", + qp->ib_qp.qp_num, resource); + break; + } + case 0x4: /* Completion Queue */ + { + struct ehca_cq *cq = (struct ehca_cq*)data; + + ehca_err(&shca->ib_device, + "CQ 0x%x (resource=%lx) has errors.", + cq->cq_number, resource); + break; + } + default: + ehca_err(&shca->ib_device, + "Unknown errror type: %lx on %s.", + type, shca->ib_device.name); + break; + } + + ehca_err(&shca->ib_device, "Error data is available: %lx.", resource); + ehca_err(&shca->ib_device, "EHCA ----- error data begin " + "---------------------------------------------------"); + ehca_dmp(rblock, length, "resource=%lx", resource); + ehca_err(&shca->ib_device, "EHCA ----- error data end " + "----------------------------------------------------"); + + return; +} + +int ehca_error_data(struct ehca_shca *shca, void *data, + u64 resource) +{ + + unsigned long ret; + u64 *rblock; + unsigned long block_count; + + rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); + if (!rblock) { + ehca_err(&shca->ib_device, "Cannot allocate rblock memory."); + ret = -ENOMEM; + goto error_data1; + } + + ret = hipz_h_error_data(shca->ipz_hca_handle, + resource, + rblock, + &block_count); + + if (ret == H_R_STATE) { + ehca_err(&shca->ib_device, + "No error data is available: %lx.", resource); + } + else if (ret == H_SUCCESS) { + int length; + + length = EHCA_BMASK_GET(ERROR_DATA_LENGTH, rblock[0]); + + if (length > PAGE_SIZE) + length = PAGE_SIZE; + + print_error_data(shca, data, rblock, length); + } + else { + ehca_err(&shca->ib_device, + "Error data could not be fetched: %lx", resource); + } + + kfree(rblock); + +error_data1: + return ret; + +} + +static void qp_event_callback(struct ehca_shca *shca, + u64 eqe, + enum ib_event_type event_type) +{ + struct ib_event event; + struct ehca_qp *qp; + unsigned long flags; + u32 token = EHCA_BMASK_GET(EQE_QP_TOKEN, eqe); + + spin_lock_irqsave(&ehca_qp_idr_lock, flags); + qp = idr_find(&ehca_qp_idr, token); + spin_unlock_irqrestore(&ehca_qp_idr_lock, flags); + + + if (!qp) + return; + + ehca_error_data(shca, qp, qp->ipz_qp_handle.handle); + + if (!qp->ib_qp.event_handler) + return; + + event.device = &shca->ib_device; + event.event = event_type; + event.element.qp = &qp->ib_qp; + + qp->ib_qp.event_handler(&event, qp->ib_qp.qp_context); + + return; +} + +static void cq_event_callback(struct ehca_shca *shca, + u64 eqe) +{ + struct ehca_cq *cq; + unsigned long flags; + u32 token = EHCA_BMASK_GET(EQE_CQ_TOKEN, eqe); + + spin_lock_irqsave(&ehca_cq_idr_lock, flags); + cq = idr_find(&ehca_cq_idr, token); + spin_unlock_irqrestore(&ehca_cq_idr_lock, flags); + + if (!cq) + return; + + ehca_error_data(shca, cq, cq->ipz_cq_handle.handle); + + return; +} + +static void parse_identifier(struct ehca_shca *shca, u64 eqe) +{ + u8 identifier = EHCA_BMASK_GET(EQE_EE_IDENTIFIER, eqe); + + switch (identifier) { + case 0x02: /* path migrated */ + qp_event_callback(shca, eqe, IB_EVENT_PATH_MIG); + break; + case 0x03: /* communication established */ + qp_event_callback(shca, eqe, IB_EVENT_COMM_EST); + break; + case 0x04: /* send queue drained */ + qp_event_callback(shca, eqe, IB_EVENT_SQ_DRAINED); + break; + case 0x05: /* QP error */ + case 0x06: /* QP error */ + qp_event_callback(shca, eqe, IB_EVENT_QP_FATAL); + break; + case 0x07: /* CQ error */ + case 0x08: /* CQ error */ + cq_event_callback(shca, eqe); + break; + case 0x09: /* MRMWPTE error */ + ehca_err(&shca->ib_device, "MRMWPTE error."); + break; + case 0x0A: /* port event */ + ehca_err(&shca->ib_device, "Port event."); + break; + case 0x0B: /* MR access error */ + ehca_err(&shca->ib_device, "MR access error."); + break; + case 0x0C: /* EQ error */ + ehca_err(&shca->ib_device, "EQ error."); + break; + case 0x0D: /* P/Q_Key mismatch */ + ehca_err(&shca->ib_device, "P/Q_Key mismatch."); + break; + case 0x10: /* sampling complete */ + ehca_err(&shca->ib_device, "Sampling complete."); + break; + case 0x11: /* unaffiliated access error */ + ehca_err(&shca->ib_device, "Unaffiliated access error."); + break; + case 0x12: /* path migrating error */ + ehca_err(&shca->ib_device, "Path migration error."); + break; + case 0x13: /* interface trace stopped */ + ehca_err(&shca->ib_device, "Interface trace stopped."); + break; + case 0x14: /* first error capture info available */ + default: + ehca_err(&shca->ib_device, "Unknown identifier: %x on %s.", + identifier, shca->ib_device.name); + break; + } + + return; +} + +static void parse_ec(struct ehca_shca *shca, u64 eqe) +{ + struct ib_event event; + u8 ec = EHCA_BMASK_GET(NEQE_EVENT_CODE, eqe); + u8 port = EHCA_BMASK_GET(NEQE_PORT_NUMBER, eqe); + + switch (ec) { + case 0x30: /* port availability change */ + if (EHCA_BMASK_GET(NEQE_PORT_AVAILABILITY, eqe)) { + ehca_info(&shca->ib_device, + "port %x is active.", port); + event.device = &shca->ib_device; + event.event = IB_EVENT_PORT_ACTIVE; + event.element.port_num = port; + shca->sport[port - 1].port_state = IB_PORT_ACTIVE; + ib_dispatch_event(&event); + } else { + ehca_info(&shca->ib_device, + "port %x is inactive.", port); + event.device = &shca->ib_device; + event.event = IB_EVENT_PORT_ERR; + event.element.port_num = port; + shca->sport[port - 1].port_state = IB_PORT_DOWN; + ib_dispatch_event(&event); + } + break; + case 0x31: + /* port configuration change + * disruptive change is caused by + * LID, PKEY or SM change + */ + ehca_warn(&shca->ib_device, + "disruptive port %x configuration change", port); + + ehca_info(&shca->ib_device, + "port %x is inactive.", port); + event.device = &shca->ib_device; + event.event = IB_EVENT_PORT_ERR; + event.element.port_num = port; + shca->sport[port - 1].port_state = IB_PORT_DOWN; + ib_dispatch_event(&event); + + ehca_info(&shca->ib_device, + "port %x is active.", port); + event.device = &shca->ib_device; + event.event = IB_EVENT_PORT_ACTIVE; + event.element.port_num = port; + shca->sport[port - 1].port_state = IB_PORT_ACTIVE; + ib_dispatch_event(&event); + break; + case 0x32: /* adapter malfunction */ + ehca_err(&shca->ib_device, "Adapter malfunction."); + break; + case 0x33: /* trace stopped */ + ehca_err(&shca->ib_device, "Traced stopped."); + break; + default: + ehca_err(&shca->ib_device, "Unknown event code: %x on %s.", + ec, shca->ib_device.name); + break; + } + + return; +} + +static inline void reset_eq_pending(struct ehca_cq *cq) +{ + u64 CQx_EP; + struct h_galpa gal = cq->galpas.kernel; + + hipz_galpa_store_cq(gal, cqx_ep, 0x0); + CQx_EP = hipz_galpa_load(gal, CQTEMM_OFFSET(cqx_ep)); + + return; +} + +irqreturn_t ehca_interrupt_neq(int irq, void *dev_id, struct pt_regs *regs) +{ + struct ehca_shca *shca = (struct ehca_shca*)dev_id; + + tasklet_hi_schedule(&shca->neq.interrupt_task); + + return IRQ_HANDLED; +} + +void ehca_tasklet_neq(unsigned long data) +{ + struct ehca_shca *shca = (struct ehca_shca*)data; + struct ehca_eqe *eqe; + u64 ret; + + eqe = (struct ehca_eqe *)ehca_poll_eq(shca, &shca->neq); + + while (eqe) { + if (!EHCA_BMASK_GET(NEQE_COMPLETION_EVENT, eqe->entry)) + parse_ec(shca, eqe->entry); + + eqe = (struct ehca_eqe *)ehca_poll_eq(shca, &shca->neq); + } + + ret = hipz_h_reset_event(shca->ipz_hca_handle, + shca->neq.ipz_eq_handle, 0xFFFFFFFFFFFFFFFFL); + + if (ret != H_SUCCESS) + ehca_err(&shca->ib_device, "Can't clear notification events."); + + return; +} + +irqreturn_t ehca_interrupt_eq(int irq, void *dev_id, struct pt_regs *regs) +{ + struct ehca_shca *shca = (struct ehca_shca*)dev_id; + + tasklet_hi_schedule(&shca->eq.interrupt_task); + + return IRQ_HANDLED; +} + +void ehca_tasklet_eq(unsigned long data) +{ + struct ehca_shca *shca = (struct ehca_shca*)data; + struct ehca_eqe *eqe; + int int_state; + int query_cnt = 0; + + do { + eqe = (struct ehca_eqe *)ehca_poll_eq(shca, &shca->eq); + + if ((shca->hw_level >= 2) && eqe) + int_state = 1; + else + int_state = 0; + + while ((int_state == 1) || eqe) { + while (eqe) { + u64 eqe_value = eqe->entry; + + ehca_dbg(&shca->ib_device, + "eqe_value=%lx", eqe_value); + + /* TODO: better structure */ + if (EHCA_BMASK_GET(EQE_COMPLETION_EVENT, + eqe_value)) { + unsigned long flags; + u32 token; + struct ehca_cq *cq; + + ehca_dbg(&shca->ib_device, + "... completion event"); + token = + EHCA_BMASK_GET(EQE_CQ_TOKEN, + eqe_value); + spin_lock_irqsave(&ehca_cq_idr_lock, + flags); + cq = idr_find(&ehca_cq_idr, token); + + if (cq == NULL) { + spin_unlock(&ehca_cq_idr_lock); + break; + } + + reset_eq_pending(cq); +#ifdef CONFIG_INFINIBAND_EHCA_SCALING + queue_comp_task(cq); + spin_unlock_irqrestore(&ehca_cq_idr_lock, + flags); +#else + spin_unlock_irqrestore(&ehca_cq_idr_lock, + flags); + comp_event_callback(cq); +#endif + } else { + ehca_dbg(&shca->ib_device, + "... non completion event"); + parse_identifier(shca, eqe_value); + } + eqe = + (struct ehca_eqe *)ehca_poll_eq(shca, + &shca->eq); + } + + if (shca->hw_level >= 2) { + int_state = + hipz_h_query_int_state(shca->ipz_hca_handle, + shca->eq.ist); + query_cnt++; + iosync(); + if (query_cnt >= 100) { + query_cnt = 0; + int_state = 0; + } + } + eqe = (struct ehca_eqe *)ehca_poll_eq(shca, &shca->eq); + + } + } while (int_state != 0); + + return; +} + +#ifdef CONFIG_INFINIBAND_EHCA_SCALING + +static inline int find_next_online_cpu(struct ehca_comp_pool* pool) +{ + unsigned long flags_last_cpu; + + if (ehca_debug_level) + ehca_dmp(&cpu_online_map, sizeof(cpumask_t), ""); + + spin_lock_irqsave(&pool->last_cpu_lock, flags_last_cpu); + pool->last_cpu = next_cpu(pool->last_cpu, cpu_online_map); + if (pool->last_cpu == NR_CPUS) + pool->last_cpu = first_cpu(cpu_online_map); + spin_unlock_irqrestore(&pool->last_cpu_lock, flags_last_cpu); + + return pool->last_cpu; +} + +static void __queue_comp_task(struct ehca_cq *__cq, + struct ehca_cpu_comp_task *cct) +{ + unsigned long flags_cct; + unsigned long flags_cq; + + spin_lock_irqsave(&cct->task_lock, flags_cct); + spin_lock_irqsave(&__cq->task_lock, flags_cq); + + if (__cq->nr_callbacks == 0) { + __cq->nr_callbacks++; + list_add_tail(&__cq->entry, &cct->cq_list); + cct->cq_jobs++; + wake_up(&cct->wait_queue); + } + else + __cq->nr_callbacks++; + + spin_unlock_irqrestore(&__cq->task_lock, flags_cq); + spin_unlock_irqrestore(&cct->task_lock, flags_cct); +} + +static void queue_comp_task(struct ehca_cq *__cq) +{ + int cpu; + int cpu_id; + struct ehca_cpu_comp_task *cct; + + cpu = get_cpu(); + cpu_id = find_next_online_cpu(pool); + + BUG_ON(!cpu_online(cpu_id)); + + cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu_id); + + if (cct->cq_jobs > 0) { + cpu_id = find_next_online_cpu(pool); + cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu_id); + } + + __queue_comp_task(__cq, cct); + + put_cpu(); + + return; +} + +static void run_comp_task(struct ehca_cpu_comp_task* cct) +{ + struct ehca_cq *cq; + unsigned long flags_cct; + unsigned long flags_cq; + + spin_lock_irqsave(&cct->task_lock, flags_cct); + + while (!list_empty(&cct->cq_list)) { + cq = list_entry(cct->cq_list.next, struct ehca_cq, entry); + spin_unlock_irqrestore(&cct->task_lock, flags_cct); + comp_event_callback(cq); + spin_lock_irqsave(&cct->task_lock, flags_cct); + + spin_lock_irqsave(&cq->task_lock, flags_cq); + cq->nr_callbacks--; + if (cq->nr_callbacks == 0) { + list_del_init(cct->cq_list.next); + cct->cq_jobs--; + } + spin_unlock_irqrestore(&cq->task_lock, flags_cq); + + } + + spin_unlock_irqrestore(&cct->task_lock, flags_cct); + + return; +} + +static int comp_task(void *__cct) +{ + struct ehca_cpu_comp_task* cct = __cct; + DECLARE_WAITQUEUE(wait, current); + + set_current_state(TASK_INTERRUPTIBLE); + while(!kthread_should_stop()) { + add_wait_queue(&cct->wait_queue, &wait); + + if (list_empty(&cct->cq_list)) + schedule(); + else + __set_current_state(TASK_RUNNING); + + remove_wait_queue(&cct->wait_queue, &wait); + + if (!list_empty(&cct->cq_list)) + run_comp_task(__cct); + + set_current_state(TASK_INTERRUPTIBLE); + } + __set_current_state(TASK_RUNNING); + + return 0; +} + +static struct task_struct *create_comp_task(struct ehca_comp_pool *pool, + int cpu) +{ + struct ehca_cpu_comp_task *cct; + + cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu); + spin_lock_init(&cct->task_lock); + INIT_LIST_HEAD(&cct->cq_list); + init_waitqueue_head(&cct->wait_queue); + cct->task = kthread_create(comp_task, cct, "ehca_comp/%d", cpu); + + return cct->task; +} + +static void destroy_comp_task(struct ehca_comp_pool *pool, + int cpu) +{ + struct ehca_cpu_comp_task *cct; + struct task_struct *task; + unsigned long flags_cct; + + cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu); + + spin_lock_irqsave(&cct->task_lock, flags_cct); + + task = cct->task; + cct->task = NULL; + cct->cq_jobs = 0; + + spin_unlock_irqrestore(&cct->task_lock, flags_cct); + + if (task) + kthread_stop(task); + + return; +} + +static void take_over_work(struct ehca_comp_pool *pool, + int cpu) +{ + struct ehca_cpu_comp_task *cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu); + LIST_HEAD(list); + struct ehca_cq *cq; + unsigned long flags_cct; + + spin_lock_irqsave(&cct->task_lock, flags_cct); + + list_splice_init(&cct->cq_list, &list); + + while(!list_empty(&list)) { + cq = list_entry(cct->cq_list.next, struct ehca_cq, entry); + + list_del(&cq->entry); + __queue_comp_task(cq, per_cpu_ptr(pool->cpu_comp_tasks, + smp_processor_id())); + } + + spin_unlock_irqrestore(&cct->task_lock, flags_cct); + +} + +static int comp_pool_callback(struct notifier_block *nfb, + unsigned long action, + void *hcpu) +{ + unsigned int cpu = (unsigned long)hcpu; + struct ehca_cpu_comp_task *cct; + + switch (action) { + case CPU_UP_PREPARE: + ehca_gen_dbg("CPU: %x (CPU_PREPARE)", cpu); + if(!create_comp_task(pool, cpu)) { + ehca_gen_err("Can't create comp_task for cpu: %x", cpu); + return NOTIFY_BAD; + } + break; + case CPU_UP_CANCELED: + ehca_gen_dbg("CPU: %x (CPU_CANCELED)", cpu); + cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu); + kthread_bind(cct->task, any_online_cpu(cpu_online_map)); + destroy_comp_task(pool, cpu); + break; + case CPU_ONLINE: + ehca_gen_dbg("CPU: %x (CPU_ONLINE)", cpu); + cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu); + kthread_bind(cct->task, cpu); + wake_up_process(cct->task); + break; + case CPU_DOWN_PREPARE: + ehca_gen_dbg("CPU: %x (CPU_DOWN_PREPARE)", cpu); + break; + case CPU_DOWN_FAILED: + ehca_gen_dbg("CPU: %x (CPU_DOWN_FAILED)", cpu); + break; + case CPU_DEAD: + ehca_gen_dbg("CPU: %x (CPU_DEAD)", cpu); + destroy_comp_task(pool, cpu); + take_over_work(pool, cpu); + break; + } + + return NOTIFY_OK; +} + +#endif + +int ehca_create_comp_pool(void) +{ +#ifdef CONFIG_INFINIBAND_EHCA_SCALING + int cpu; + struct task_struct *task; + + pool = kzalloc(sizeof(struct ehca_comp_pool), GFP_KERNEL); + if (pool == NULL) + return -ENOMEM; + + spin_lock_init(&pool->last_cpu_lock); + pool->last_cpu = any_online_cpu(cpu_online_map); + + pool->cpu_comp_tasks = alloc_percpu(struct ehca_cpu_comp_task); + if (pool->cpu_comp_tasks == NULL) { + kfree(pool); + return -EINVAL; + } + + for_each_online_cpu(cpu) { + task = create_comp_task(pool, cpu); + if (task) { + kthread_bind(task, cpu); + wake_up_process(task); + } + } + + comp_pool_callback_nb.notifier_call = comp_pool_callback; + comp_pool_callback_nb.priority =0; + register_cpu_notifier(&comp_pool_callback_nb); +#endif + + return 0; +} + +void ehca_destroy_comp_pool(void) +{ +#ifdef CONFIG_INFINIBAND_EHCA_SCALING + int i; + + unregister_cpu_notifier(&comp_pool_callback_nb); + + for (i = 0; i < NR_CPUS; i++) { + if (cpu_online(i)) + destroy_comp_task(pool, i); + } +#endif + + return; +} diff --git a/drivers/infiniband/hw/ehca/ehca_irq.h b/drivers/infiniband/hw/ehca/ehca_irq.h new file mode 100644 index 00000000000..85bf1fe16fe --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_irq.h @@ -0,0 +1,77 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * Function definitions and structs for EQs, NEQs and interrupts + * + * Authors: Heiko J Schick + * Khadija Souissi + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __EHCA_IRQ_H +#define __EHCA_IRQ_H + + +struct ehca_shca; + +#include +#include +#include + +int ehca_error_data(struct ehca_shca *shca, void *data, u64 resource); + +irqreturn_t ehca_interrupt_neq(int irq, void *dev_id, struct pt_regs *regs); +void ehca_tasklet_neq(unsigned long data); + +irqreturn_t ehca_interrupt_eq(int irq, void *dev_id, struct pt_regs *regs); +void ehca_tasklet_eq(unsigned long data); + +struct ehca_cpu_comp_task { + wait_queue_head_t wait_queue; + struct list_head cq_list; + struct task_struct *task; + spinlock_t task_lock; + int cq_jobs; +}; + +struct ehca_comp_pool { + struct ehca_cpu_comp_task *cpu_comp_tasks; + int last_cpu; + spinlock_t last_cpu_lock; +}; + +int ehca_create_comp_pool(void); +void ehca_destroy_comp_pool(void); + +#endif diff --git a/drivers/infiniband/hw/ehca/ehca_iverbs.h b/drivers/infiniband/hw/ehca/ehca_iverbs.h new file mode 100644 index 00000000000..bbdc437f516 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_iverbs.h @@ -0,0 +1,181 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * Function definitions for internal functions + * + * Authors: Heiko J Schick + * Dietmar Decker + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __EHCA_IVERBS_H__ +#define __EHCA_IVERBS_H__ + +#include "ehca_classes.h" + +int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props); + +int ehca_query_port(struct ib_device *ibdev, u8 port, + struct ib_port_attr *props); + +int ehca_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 * pkey); + +int ehca_query_gid(struct ib_device *ibdev, u8 port, int index, + union ib_gid *gid); + +int ehca_modify_port(struct ib_device *ibdev, u8 port, int port_modify_mask, + struct ib_port_modify *props); + +struct ib_pd *ehca_alloc_pd(struct ib_device *device, + struct ib_ucontext *context, + struct ib_udata *udata); + +int ehca_dealloc_pd(struct ib_pd *pd); + +struct ib_ah *ehca_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr); + +int ehca_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr); + +int ehca_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr); + +int ehca_destroy_ah(struct ib_ah *ah); + +struct ib_mr *ehca_get_dma_mr(struct ib_pd *pd, int mr_access_flags); + +struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, + struct ib_phys_buf *phys_buf_array, + int num_phys_buf, + int mr_access_flags, u64 *iova_start); + +struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, + struct ib_umem *region, + int mr_access_flags, struct ib_udata *udata); + +int ehca_rereg_phys_mr(struct ib_mr *mr, + int mr_rereg_mask, + struct ib_pd *pd, + struct ib_phys_buf *phys_buf_array, + int num_phys_buf, int mr_access_flags, u64 *iova_start); + +int ehca_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr); + +int ehca_dereg_mr(struct ib_mr *mr); + +struct ib_mw *ehca_alloc_mw(struct ib_pd *pd); + +int ehca_bind_mw(struct ib_qp *qp, struct ib_mw *mw, + struct ib_mw_bind *mw_bind); + +int ehca_dealloc_mw(struct ib_mw *mw); + +struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, + int mr_access_flags, + struct ib_fmr_attr *fmr_attr); + +int ehca_map_phys_fmr(struct ib_fmr *fmr, + u64 *page_list, int list_len, u64 iova); + +int ehca_unmap_fmr(struct list_head *fmr_list); + +int ehca_dealloc_fmr(struct ib_fmr *fmr); + +enum ehca_eq_type { + EHCA_EQ = 0, /* Event Queue */ + EHCA_NEQ /* Notification Event Queue */ +}; + +int ehca_create_eq(struct ehca_shca *shca, struct ehca_eq *eq, + enum ehca_eq_type type, const u32 length); + +int ehca_destroy_eq(struct ehca_shca *shca, struct ehca_eq *eq); + +void *ehca_poll_eq(struct ehca_shca *shca, struct ehca_eq *eq); + + +struct ib_cq *ehca_create_cq(struct ib_device *device, int cqe, + struct ib_ucontext *context, + struct ib_udata *udata); + +int ehca_destroy_cq(struct ib_cq *cq); + +int ehca_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata); + +int ehca_poll_cq(struct ib_cq *cq, int num_entries, struct ib_wc *wc); + +int ehca_peek_cq(struct ib_cq *cq, int wc_cnt); + +int ehca_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify cq_notify); + +struct ib_qp *ehca_create_qp(struct ib_pd *pd, + struct ib_qp_init_attr *init_attr, + struct ib_udata *udata); + +int ehca_destroy_qp(struct ib_qp *qp); + +int ehca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask); + +int ehca_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr, + int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr); + +int ehca_post_send(struct ib_qp *qp, struct ib_send_wr *send_wr, + struct ib_send_wr **bad_send_wr); + +int ehca_post_recv(struct ib_qp *qp, struct ib_recv_wr *recv_wr, + struct ib_recv_wr **bad_recv_wr); + +u64 ehca_define_sqp(struct ehca_shca *shca, struct ehca_qp *ibqp, + struct ib_qp_init_attr *qp_init_attr); + +int ehca_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); + +int ehca_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); + +struct ib_ucontext *ehca_alloc_ucontext(struct ib_device *device, + struct ib_udata *udata); + +int ehca_dealloc_ucontext(struct ib_ucontext *context); + +int ehca_mmap(struct ib_ucontext *context, struct vm_area_struct *vma); + +void ehca_poll_eqs(unsigned long data); + +int ehca_mmap_nopage(u64 foffset,u64 length,void **mapped, + struct vm_area_struct **vma); + +int ehca_mmap_register(u64 physical,void **mapped, + struct vm_area_struct **vma); + +int ehca_munmap(unsigned long addr, size_t len); + +#endif diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c new file mode 100644 index 00000000000..2a99f2d13cd --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_main.c @@ -0,0 +1,818 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * module start stop, hca detection + * + * Authors: Heiko J Schick + * Hoang-Nam Nguyen + * Joachim Fenkes + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "ehca_classes.h" +#include "ehca_iverbs.h" +#include "ehca_mrmw.h" +#include "ehca_tools.h" +#include "hcp_if.h" + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_AUTHOR("Christoph Raisch "); +MODULE_DESCRIPTION("IBM eServer HCA InfiniBand Device Driver"); +MODULE_VERSION("SVNEHCA_0016"); + +int ehca_open_aqp1 = 0; +int ehca_debug_level = 0; +int ehca_hw_level = 0; +int ehca_nr_ports = 2; +int ehca_use_hp_mr = 0; +int ehca_port_act_time = 30; +int ehca_poll_all_eqs = 1; +int ehca_static_rate = -1; + +module_param_named(open_aqp1, ehca_open_aqp1, int, 0); +module_param_named(debug_level, ehca_debug_level, int, 0); +module_param_named(hw_level, ehca_hw_level, int, 0); +module_param_named(nr_ports, ehca_nr_ports, int, 0); +module_param_named(use_hp_mr, ehca_use_hp_mr, int, 0); +module_param_named(port_act_time, ehca_port_act_time, int, 0); +module_param_named(poll_all_eqs, ehca_poll_all_eqs, int, 0); +module_param_named(static_rate, ehca_static_rate, int, 0); + +MODULE_PARM_DESC(open_aqp1, + "AQP1 on startup (0: no (default), 1: yes)"); +MODULE_PARM_DESC(debug_level, + "debug level" + " (0: no debug traces (default), 1: with debug traces)"); +MODULE_PARM_DESC(hw_level, + "hardware level" + " (0: autosensing (default), 1: v. 0.20, 2: v. 0.21)"); +MODULE_PARM_DESC(nr_ports, + "number of connected ports (default: 2)"); +MODULE_PARM_DESC(use_hp_mr, + "high performance MRs (0: no (default), 1: yes)"); +MODULE_PARM_DESC(port_act_time, + "time to wait for port activation (default: 30 sec)"); +MODULE_PARM_DESC(poll_all_eqs, + "polls all event queues periodically" + " (0: no, 1: yes (default))"); +MODULE_PARM_DESC(static_rate, + "set permanent static rate (default: disabled)"); + +spinlock_t ehca_qp_idr_lock; +spinlock_t ehca_cq_idr_lock; +DEFINE_IDR(ehca_qp_idr); +DEFINE_IDR(ehca_cq_idr); + +static struct list_head shca_list; /* list of all registered ehcas */ +static spinlock_t shca_list_lock; + +static struct timer_list poll_eqs_timer; + +static int ehca_create_slab_caches(void) +{ + int ret; + + ret = ehca_init_pd_cache(); + if (ret) { + ehca_gen_err("Cannot create PD SLAB cache."); + return ret; + } + + ret = ehca_init_cq_cache(); + if (ret) { + ehca_gen_err("Cannot create CQ SLAB cache."); + goto create_slab_caches2; + } + + ret = ehca_init_qp_cache(); + if (ret) { + ehca_gen_err("Cannot create QP SLAB cache."); + goto create_slab_caches3; + } + + ret = ehca_init_av_cache(); + if (ret) { + ehca_gen_err("Cannot create AV SLAB cache."); + goto create_slab_caches4; + } + + ret = ehca_init_mrmw_cache(); + if (ret) { + ehca_gen_err("Cannot create MR&MW SLAB cache."); + goto create_slab_caches5; + } + + return 0; + +create_slab_caches5: + ehca_cleanup_av_cache(); + +create_slab_caches4: + ehca_cleanup_qp_cache(); + +create_slab_caches3: + ehca_cleanup_cq_cache(); + +create_slab_caches2: + ehca_cleanup_pd_cache(); + + return ret; +} + +static void ehca_destroy_slab_caches(void) +{ + ehca_cleanup_mrmw_cache(); + ehca_cleanup_av_cache(); + ehca_cleanup_qp_cache(); + ehca_cleanup_cq_cache(); + ehca_cleanup_pd_cache(); +} + +#define EHCA_HCAAVER EHCA_BMASK_IBM(32,39) +#define EHCA_REVID EHCA_BMASK_IBM(40,63) + +int ehca_sense_attributes(struct ehca_shca *shca) +{ + int ret = 0; + u64 h_ret; + struct hipz_query_hca *rblock; + + rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); + if (!rblock) { + ehca_gen_err("Cannot allocate rblock memory."); + return -ENOMEM; + } + + h_ret = hipz_h_query_hca(shca->ipz_hca_handle, rblock); + if (h_ret != H_SUCCESS) { + ehca_gen_err("Cannot query device properties. h_ret=%lx", + h_ret); + ret = -EPERM; + goto num_ports1; + } + + if (ehca_nr_ports == 1) + shca->num_ports = 1; + else + shca->num_ports = (u8)rblock->num_ports; + + ehca_gen_dbg(" ... found %x ports", rblock->num_ports); + + if (ehca_hw_level == 0) { + u32 hcaaver; + u32 revid; + + hcaaver = EHCA_BMASK_GET(EHCA_HCAAVER, rblock->hw_ver); + revid = EHCA_BMASK_GET(EHCA_REVID, rblock->hw_ver); + + ehca_gen_dbg(" ... hardware version=%x:%x", hcaaver, revid); + + if ((hcaaver == 1) && (revid == 0)) + shca->hw_level = 0; + else if ((hcaaver == 1) && (revid == 1)) + shca->hw_level = 1; + else if ((hcaaver == 1) && (revid == 2)) + shca->hw_level = 2; + } + ehca_gen_dbg(" ... hardware level=%x", shca->hw_level); + + shca->sport[0].rate = IB_RATE_30_GBPS; + shca->sport[1].rate = IB_RATE_30_GBPS; + +num_ports1: + kfree(rblock); + return ret; +} + +static int init_node_guid(struct ehca_shca *shca) +{ + int ret = 0; + struct hipz_query_hca *rblock; + + rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); + if (!rblock) { + ehca_err(&shca->ib_device, "Can't allocate rblock memory."); + return -ENOMEM; + } + + if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) { + ehca_err(&shca->ib_device, "Can't query device properties"); + ret = -EINVAL; + goto init_node_guid1; + } + + memcpy(&shca->ib_device.node_guid, &rblock->node_guid, sizeof(u64)); + +init_node_guid1: + kfree(rblock); + return ret; +} + +int ehca_register_device(struct ehca_shca *shca) +{ + int ret; + + ret = init_node_guid(shca); + if (ret) + return ret; + + strlcpy(shca->ib_device.name, "ehca%d", IB_DEVICE_NAME_MAX); + shca->ib_device.owner = THIS_MODULE; + + shca->ib_device.uverbs_abi_ver = 5; + shca->ib_device.uverbs_cmd_mask = + (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | + (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | + (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | + (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | + (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | + (1ull << IB_USER_VERBS_CMD_REG_MR) | + (1ull << IB_USER_VERBS_CMD_DEREG_MR) | + (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | + (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | + (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | + (1ull << IB_USER_VERBS_CMD_CREATE_QP) | + (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | + (1ull << IB_USER_VERBS_CMD_QUERY_QP) | + (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | + (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | + (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); + + shca->ib_device.node_type = IB_NODE_CA; + shca->ib_device.phys_port_cnt = shca->num_ports; + shca->ib_device.dma_device = &shca->ibmebus_dev->ofdev.dev; + shca->ib_device.query_device = ehca_query_device; + shca->ib_device.query_port = ehca_query_port; + shca->ib_device.query_gid = ehca_query_gid; + shca->ib_device.query_pkey = ehca_query_pkey; + /* shca->in_device.modify_device = ehca_modify_device */ + shca->ib_device.modify_port = ehca_modify_port; + shca->ib_device.alloc_ucontext = ehca_alloc_ucontext; + shca->ib_device.dealloc_ucontext = ehca_dealloc_ucontext; + shca->ib_device.alloc_pd = ehca_alloc_pd; + shca->ib_device.dealloc_pd = ehca_dealloc_pd; + shca->ib_device.create_ah = ehca_create_ah; + /* shca->ib_device.modify_ah = ehca_modify_ah; */ + shca->ib_device.query_ah = ehca_query_ah; + shca->ib_device.destroy_ah = ehca_destroy_ah; + shca->ib_device.create_qp = ehca_create_qp; + shca->ib_device.modify_qp = ehca_modify_qp; + shca->ib_device.query_qp = ehca_query_qp; + shca->ib_device.destroy_qp = ehca_destroy_qp; + shca->ib_device.post_send = ehca_post_send; + shca->ib_device.post_recv = ehca_post_recv; + shca->ib_device.create_cq = ehca_create_cq; + shca->ib_device.destroy_cq = ehca_destroy_cq; + shca->ib_device.resize_cq = ehca_resize_cq; + shca->ib_device.poll_cq = ehca_poll_cq; + /* shca->ib_device.peek_cq = ehca_peek_cq; */ + shca->ib_device.req_notify_cq = ehca_req_notify_cq; + /* shca->ib_device.req_ncomp_notif = ehca_req_ncomp_notif; */ + shca->ib_device.get_dma_mr = ehca_get_dma_mr; + shca->ib_device.reg_phys_mr = ehca_reg_phys_mr; + shca->ib_device.reg_user_mr = ehca_reg_user_mr; + shca->ib_device.query_mr = ehca_query_mr; + shca->ib_device.dereg_mr = ehca_dereg_mr; + shca->ib_device.rereg_phys_mr = ehca_rereg_phys_mr; + shca->ib_device.alloc_mw = ehca_alloc_mw; + shca->ib_device.bind_mw = ehca_bind_mw; + shca->ib_device.dealloc_mw = ehca_dealloc_mw; + shca->ib_device.alloc_fmr = ehca_alloc_fmr; + shca->ib_device.map_phys_fmr = ehca_map_phys_fmr; + shca->ib_device.unmap_fmr = ehca_unmap_fmr; + shca->ib_device.dealloc_fmr = ehca_dealloc_fmr; + shca->ib_device.attach_mcast = ehca_attach_mcast; + shca->ib_device.detach_mcast = ehca_detach_mcast; + /* shca->ib_device.process_mad = ehca_process_mad; */ + shca->ib_device.mmap = ehca_mmap; + + ret = ib_register_device(&shca->ib_device); + if (ret) + ehca_err(&shca->ib_device, + "ib_register_device() failed ret=%x", ret); + + return ret; +} + +static int ehca_create_aqp1(struct ehca_shca *shca, u32 port) +{ + struct ehca_sport *sport = &shca->sport[port - 1]; + struct ib_cq *ibcq; + struct ib_qp *ibqp; + struct ib_qp_init_attr qp_init_attr; + int ret; + + if (sport->ibcq_aqp1) { + ehca_err(&shca->ib_device, "AQP1 CQ is already created."); + return -EPERM; + } + + ibcq = ib_create_cq(&shca->ib_device, NULL, NULL, (void*)(-1), 10); + if (IS_ERR(ibcq)) { + ehca_err(&shca->ib_device, "Cannot create AQP1 CQ."); + return PTR_ERR(ibcq); + } + sport->ibcq_aqp1 = ibcq; + + if (sport->ibqp_aqp1) { + ehca_err(&shca->ib_device, "AQP1 QP is already created."); + ret = -EPERM; + goto create_aqp1; + } + + memset(&qp_init_attr, 0, sizeof(struct ib_qp_init_attr)); + qp_init_attr.send_cq = ibcq; + qp_init_attr.recv_cq = ibcq; + qp_init_attr.sq_sig_type = IB_SIGNAL_ALL_WR; + qp_init_attr.cap.max_send_wr = 100; + qp_init_attr.cap.max_recv_wr = 100; + qp_init_attr.cap.max_send_sge = 2; + qp_init_attr.cap.max_recv_sge = 1; + qp_init_attr.qp_type = IB_QPT_GSI; + qp_init_attr.port_num = port; + qp_init_attr.qp_context = NULL; + qp_init_attr.event_handler = NULL; + qp_init_attr.srq = NULL; + + ibqp = ib_create_qp(&shca->pd->ib_pd, &qp_init_attr); + if (IS_ERR(ibqp)) { + ehca_err(&shca->ib_device, "Cannot create AQP1 QP."); + ret = PTR_ERR(ibqp); + goto create_aqp1; + } + sport->ibqp_aqp1 = ibqp; + + return 0; + +create_aqp1: + ib_destroy_cq(sport->ibcq_aqp1); + return ret; +} + +static int ehca_destroy_aqp1(struct ehca_sport *sport) +{ + int ret; + + ret = ib_destroy_qp(sport->ibqp_aqp1); + if (ret) { + ehca_gen_err("Cannot destroy AQP1 QP. ret=%x", ret); + return ret; + } + + ret = ib_destroy_cq(sport->ibcq_aqp1); + if (ret) + ehca_gen_err("Cannot destroy AQP1 CQ. ret=%x", ret); + + return ret; +} + +static ssize_t ehca_show_debug_level(struct device_driver *ddp, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", + ehca_debug_level); +} + +static ssize_t ehca_store_debug_level(struct device_driver *ddp, + const char *buf, size_t count) +{ + int value = (*buf) - '0'; + if (value >= 0 && value <= 9) + ehca_debug_level = value; + return 1; +} + +DRIVER_ATTR(debug_level, S_IRUSR | S_IWUSR, + ehca_show_debug_level, ehca_store_debug_level); + +void ehca_create_driver_sysfs(struct ibmebus_driver *drv) +{ + driver_create_file(&drv->driver, &driver_attr_debug_level); +} + +void ehca_remove_driver_sysfs(struct ibmebus_driver *drv) +{ + driver_remove_file(&drv->driver, &driver_attr_debug_level); +} + +#define EHCA_RESOURCE_ATTR(name) \ +static ssize_t ehca_show_##name(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + struct ehca_shca *shca; \ + struct hipz_query_hca *rblock; \ + int data; \ + \ + shca = dev->driver_data; \ + \ + rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); \ + if (!rblock) { \ + dev_err(dev, "Can't allocate rblock memory."); \ + return 0; \ + } \ + \ + if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) { \ + dev_err(dev, "Can't query device properties"); \ + kfree(rblock); \ + return 0; \ + } \ + \ + data = rblock->name; \ + kfree(rblock); \ + \ + if ((strcmp(#name, "num_ports") == 0) && (ehca_nr_ports == 1)) \ + return snprintf(buf, 256, "1\n"); \ + else \ + return snprintf(buf, 256, "%d\n", data); \ + \ +} \ +static DEVICE_ATTR(name, S_IRUGO, ehca_show_##name, NULL); + +EHCA_RESOURCE_ATTR(num_ports); +EHCA_RESOURCE_ATTR(hw_ver); +EHCA_RESOURCE_ATTR(max_eq); +EHCA_RESOURCE_ATTR(cur_eq); +EHCA_RESOURCE_ATTR(max_cq); +EHCA_RESOURCE_ATTR(cur_cq); +EHCA_RESOURCE_ATTR(max_qp); +EHCA_RESOURCE_ATTR(cur_qp); +EHCA_RESOURCE_ATTR(max_mr); +EHCA_RESOURCE_ATTR(cur_mr); +EHCA_RESOURCE_ATTR(max_mw); +EHCA_RESOURCE_ATTR(cur_mw); +EHCA_RESOURCE_ATTR(max_pd); +EHCA_RESOURCE_ATTR(max_ah); + +static ssize_t ehca_show_adapter_handle(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct ehca_shca *shca = dev->driver_data; + + return sprintf(buf, "%lx\n", shca->ipz_hca_handle.handle); + +} +static DEVICE_ATTR(adapter_handle, S_IRUGO, ehca_show_adapter_handle, NULL); + + +void ehca_create_device_sysfs(struct ibmebus_dev *dev) +{ + device_create_file(&dev->ofdev.dev, &dev_attr_adapter_handle); + device_create_file(&dev->ofdev.dev, &dev_attr_num_ports); + device_create_file(&dev->ofdev.dev, &dev_attr_hw_ver); + device_create_file(&dev->ofdev.dev, &dev_attr_max_eq); + device_create_file(&dev->ofdev.dev, &dev_attr_cur_eq); + device_create_file(&dev->ofdev.dev, &dev_attr_max_cq); + device_create_file(&dev->ofdev.dev, &dev_attr_cur_cq); + device_create_file(&dev->ofdev.dev, &dev_attr_max_qp); + device_create_file(&dev->ofdev.dev, &dev_attr_cur_qp); + device_create_file(&dev->ofdev.dev, &dev_attr_max_mr); + device_create_file(&dev->ofdev.dev, &dev_attr_cur_mr); + device_create_file(&dev->ofdev.dev, &dev_attr_max_mw); + device_create_file(&dev->ofdev.dev, &dev_attr_cur_mw); + device_create_file(&dev->ofdev.dev, &dev_attr_max_pd); + device_create_file(&dev->ofdev.dev, &dev_attr_max_ah); +} + +void ehca_remove_device_sysfs(struct ibmebus_dev *dev) +{ + device_remove_file(&dev->ofdev.dev, &dev_attr_adapter_handle); + device_remove_file(&dev->ofdev.dev, &dev_attr_num_ports); + device_remove_file(&dev->ofdev.dev, &dev_attr_hw_ver); + device_remove_file(&dev->ofdev.dev, &dev_attr_max_eq); + device_remove_file(&dev->ofdev.dev, &dev_attr_cur_eq); + device_remove_file(&dev->ofdev.dev, &dev_attr_max_cq); + device_remove_file(&dev->ofdev.dev, &dev_attr_cur_cq); + device_remove_file(&dev->ofdev.dev, &dev_attr_max_qp); + device_remove_file(&dev->ofdev.dev, &dev_attr_cur_qp); + device_remove_file(&dev->ofdev.dev, &dev_attr_max_mr); + device_remove_file(&dev->ofdev.dev, &dev_attr_cur_mr); + device_remove_file(&dev->ofdev.dev, &dev_attr_max_mw); + device_remove_file(&dev->ofdev.dev, &dev_attr_cur_mw); + device_remove_file(&dev->ofdev.dev, &dev_attr_max_pd); + device_remove_file(&dev->ofdev.dev, &dev_attr_max_ah); +} + +static int __devinit ehca_probe(struct ibmebus_dev *dev, + const struct of_device_id *id) +{ + struct ehca_shca *shca; + u64 *handle; + struct ib_pd *ibpd; + int ret; + + handle = (u64 *)get_property(dev->ofdev.node, "ibm,hca-handle", NULL); + if (!handle) { + ehca_gen_err("Cannot get eHCA handle for adapter: %s.", + dev->ofdev.node->full_name); + return -ENODEV; + } + + if (!(*handle)) { + ehca_gen_err("Wrong eHCA handle for adapter: %s.", + dev->ofdev.node->full_name); + return -ENODEV; + } + + shca = (struct ehca_shca *)ib_alloc_device(sizeof(*shca)); + if (!shca) { + ehca_gen_err("Cannot allocate shca memory."); + return -ENOMEM; + } + + shca->ibmebus_dev = dev; + shca->ipz_hca_handle.handle = *handle; + dev->ofdev.dev.driver_data = shca; + + ret = ehca_sense_attributes(shca); + if (ret < 0) { + ehca_gen_err("Cannot sense eHCA attributes."); + goto probe1; + } + + ret = ehca_register_device(shca); + if (ret) { + ehca_gen_err("Cannot register Infiniband device"); + goto probe1; + } + + /* create event queues */ + ret = ehca_create_eq(shca, &shca->eq, EHCA_EQ, 2048); + if (ret) { + ehca_err(&shca->ib_device, "Cannot create EQ."); + goto probe2; + } + + ret = ehca_create_eq(shca, &shca->neq, EHCA_NEQ, 513); + if (ret) { + ehca_err(&shca->ib_device, "Cannot create NEQ."); + goto probe3; + } + + /* create internal protection domain */ + ibpd = ehca_alloc_pd(&shca->ib_device, (void*)(-1), NULL); + if (IS_ERR(ibpd)) { + ehca_err(&shca->ib_device, "Cannot create internal PD."); + ret = PTR_ERR(ibpd); + goto probe4; + } + + shca->pd = container_of(ibpd, struct ehca_pd, ib_pd); + shca->pd->ib_pd.device = &shca->ib_device; + + /* create internal max MR */ + ret = ehca_reg_internal_maxmr(shca, shca->pd, &shca->maxmr); + + if (ret) { + ehca_err(&shca->ib_device, "Cannot create internal MR ret=%x", + ret); + goto probe5; + } + + /* create AQP1 for port 1 */ + if (ehca_open_aqp1 == 1) { + shca->sport[0].port_state = IB_PORT_DOWN; + ret = ehca_create_aqp1(shca, 1); + if (ret) { + ehca_err(&shca->ib_device, + "Cannot create AQP1 for port 1."); + goto probe6; + } + } + + /* create AQP1 for port 2 */ + if ((ehca_open_aqp1 == 1) && (shca->num_ports == 2)) { + shca->sport[1].port_state = IB_PORT_DOWN; + ret = ehca_create_aqp1(shca, 2); + if (ret) { + ehca_err(&shca->ib_device, + "Cannot create AQP1 for port 2."); + goto probe7; + } + } + + ehca_create_device_sysfs(dev); + + spin_lock(&shca_list_lock); + list_add(&shca->shca_list, &shca_list); + spin_unlock(&shca_list_lock); + + return 0; + +probe7: + ret = ehca_destroy_aqp1(&shca->sport[0]); + if (ret) + ehca_err(&shca->ib_device, + "Cannot destroy AQP1 for port 1. ret=%x", ret); + +probe6: + ret = ehca_dereg_internal_maxmr(shca); + if (ret) + ehca_err(&shca->ib_device, + "Cannot destroy internal MR. ret=%x", ret); + +probe5: + ret = ehca_dealloc_pd(&shca->pd->ib_pd); + if (ret) + ehca_err(&shca->ib_device, + "Cannot destroy internal PD. ret=%x", ret); + +probe4: + ret = ehca_destroy_eq(shca, &shca->neq); + if (ret) + ehca_err(&shca->ib_device, + "Cannot destroy NEQ. ret=%x", ret); + +probe3: + ret = ehca_destroy_eq(shca, &shca->eq); + if (ret) + ehca_err(&shca->ib_device, + "Cannot destroy EQ. ret=%x", ret); + +probe2: + ib_unregister_device(&shca->ib_device); + +probe1: + ib_dealloc_device(&shca->ib_device); + + return -EINVAL; +} + +static int __devexit ehca_remove(struct ibmebus_dev *dev) +{ + struct ehca_shca *shca = dev->ofdev.dev.driver_data; + int ret; + + ehca_remove_device_sysfs(dev); + + if (ehca_open_aqp1 == 1) { + int i; + for (i = 0; i < shca->num_ports; i++) { + ret = ehca_destroy_aqp1(&shca->sport[i]); + if (ret) + ehca_err(&shca->ib_device, + "Cannot destroy AQP1 for port %x " + "ret=%x", ret, i); + } + } + + ib_unregister_device(&shca->ib_device); + + ret = ehca_dereg_internal_maxmr(shca); + if (ret) + ehca_err(&shca->ib_device, + "Cannot destroy internal MR. ret=%x", ret); + + ret = ehca_dealloc_pd(&shca->pd->ib_pd); + if (ret) + ehca_err(&shca->ib_device, + "Cannot destroy internal PD. ret=%x", ret); + + ret = ehca_destroy_eq(shca, &shca->eq); + if (ret) + ehca_err(&shca->ib_device, "Cannot destroy EQ. ret=%x", ret); + + ret = ehca_destroy_eq(shca, &shca->neq); + if (ret) + ehca_err(&shca->ib_device, "Canot destroy NEQ. ret=%x", ret); + + ib_dealloc_device(&shca->ib_device); + + spin_lock(&shca_list_lock); + list_del(&shca->shca_list); + spin_unlock(&shca_list_lock); + + return ret; +} + +static struct of_device_id ehca_device_table[] = +{ + { + .name = "lhca", + .compatible = "IBM,lhca", + }, + {}, +}; + +static struct ibmebus_driver ehca_driver = { + .name = "ehca", + .id_table = ehca_device_table, + .probe = ehca_probe, + .remove = ehca_remove, +}; + +void ehca_poll_eqs(unsigned long data) +{ + struct ehca_shca *shca; + + spin_lock(&shca_list_lock); + list_for_each_entry(shca, &shca_list, shca_list) { + if (shca->eq.is_initialized) + ehca_tasklet_eq((unsigned long)(void*)shca); + } + mod_timer(&poll_eqs_timer, jiffies + HZ); + spin_unlock(&shca_list_lock); +} + +int __init ehca_module_init(void) +{ + int ret; + + printk(KERN_INFO "eHCA Infiniband Device Driver " + "(Rel.: SVNEHCA_0016)\n"); + idr_init(&ehca_qp_idr); + idr_init(&ehca_cq_idr); + spin_lock_init(&ehca_qp_idr_lock); + spin_lock_init(&ehca_cq_idr_lock); + + INIT_LIST_HEAD(&shca_list); + spin_lock_init(&shca_list_lock); + + if ((ret = ehca_create_comp_pool())) { + ehca_gen_err("Cannot create comp pool."); + return ret; + } + + if ((ret = ehca_create_slab_caches())) { + ehca_gen_err("Cannot create SLAB caches"); + ret = -ENOMEM; + goto module_init1; + } + + if ((ret = ibmebus_register_driver(&ehca_driver))) { + ehca_gen_err("Cannot register eHCA device driver"); + ret = -EINVAL; + goto module_init2; + } + + ehca_create_driver_sysfs(&ehca_driver); + + if (ehca_poll_all_eqs != 1) { + ehca_gen_err("WARNING!!!"); + ehca_gen_err("It is possible to lose interrupts."); + } else { + init_timer(&poll_eqs_timer); + poll_eqs_timer.function = ehca_poll_eqs; + poll_eqs_timer.expires = jiffies + HZ; + add_timer(&poll_eqs_timer); + } + + return 0; + +module_init2: + ehca_destroy_slab_caches(); + +module_init1: + ehca_destroy_comp_pool(); + return ret; +}; + +void __exit ehca_module_exit(void) +{ + if (ehca_poll_all_eqs == 1) + del_timer_sync(&poll_eqs_timer); + + ehca_remove_driver_sysfs(&ehca_driver); + ibmebus_unregister_driver(&ehca_driver); + + ehca_destroy_slab_caches(); + + ehca_destroy_comp_pool(); + + idr_destroy(&ehca_cq_idr); + idr_destroy(&ehca_qp_idr); +}; + +module_init(ehca_module_init); +module_exit(ehca_module_exit); diff --git a/drivers/infiniband/hw/ehca/ehca_mcast.c b/drivers/infiniband/hw/ehca/ehca_mcast.c new file mode 100644 index 00000000000..32a870660bf --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_mcast.c @@ -0,0 +1,131 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * mcast functions + * + * Authors: Khadija Souissi + * Waleri Fomin + * Reinhard Ernst + * Hoang-Nam Nguyen + * Heiko J Schick + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include "ehca_classes.h" +#include "ehca_tools.h" +#include "ehca_qes.h" +#include "ehca_iverbs.h" +#include "hcp_if.h" + +#define MAX_MC_LID 0xFFFE +#define MIN_MC_LID 0xC000 /* Multicast limits */ +#define EHCA_VALID_MULTICAST_GID(gid) ((gid)[0] == 0xFF) +#define EHCA_VALID_MULTICAST_LID(lid) \ + (((lid) >= MIN_MC_LID) && ((lid) <= MAX_MC_LID)) + +int ehca_attach_mcast(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) +{ + struct ehca_qp *my_qp = container_of(ibqp, struct ehca_qp, ib_qp); + struct ehca_shca *shca = container_of(ibqp->device, struct ehca_shca, + ib_device); + union ib_gid my_gid; + u64 subnet_prefix, interface_id, h_ret; + + if (ibqp->qp_type != IB_QPT_UD) { + ehca_err(ibqp->device, "invalid qp_type=%x", ibqp->qp_type); + return -EINVAL; + } + + if (!(EHCA_VALID_MULTICAST_GID(gid->raw))) { + ehca_err(ibqp->device, "invalid mulitcast gid"); + return -EINVAL; + } else if ((lid < MIN_MC_LID) || (lid > MAX_MC_LID)) { + ehca_err(ibqp->device, "invalid mulitcast lid=%x", lid); + return -EINVAL; + } + + memcpy(&my_gid.raw, gid->raw, sizeof(union ib_gid)); + + subnet_prefix = be64_to_cpu(my_gid.global.subnet_prefix); + interface_id = be64_to_cpu(my_gid.global.interface_id); + h_ret = hipz_h_attach_mcqp(shca->ipz_hca_handle, + my_qp->ipz_qp_handle, + my_qp->galpas.kernel, + lid, subnet_prefix, interface_id); + if (h_ret != H_SUCCESS) + ehca_err(ibqp->device, + "ehca_qp=%p qp_num=%x hipz_h_attach_mcqp() failed " + "h_ret=%lx", my_qp, ibqp->qp_num, h_ret); + + return ehca2ib_return_code(h_ret); +} + +int ehca_detach_mcast(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) +{ + struct ehca_qp *my_qp = container_of(ibqp, struct ehca_qp, ib_qp); + struct ehca_shca *shca = container_of(ibqp->pd->device, + struct ehca_shca, ib_device); + union ib_gid my_gid; + u64 subnet_prefix, interface_id, h_ret; + + if (ibqp->qp_type != IB_QPT_UD) { + ehca_err(ibqp->device, "invalid qp_type %x", ibqp->qp_type); + return -EINVAL; + } + + if (!(EHCA_VALID_MULTICAST_GID(gid->raw))) { + ehca_err(ibqp->device, "invalid mulitcast gid"); + return -EINVAL; + } else if ((lid < MIN_MC_LID) || (lid > MAX_MC_LID)) { + ehca_err(ibqp->device, "invalid mulitcast lid=%x", lid); + return -EINVAL; + } + + memcpy(&my_gid.raw, gid->raw, sizeof(union ib_gid)); + + subnet_prefix = be64_to_cpu(my_gid.global.subnet_prefix); + interface_id = be64_to_cpu(my_gid.global.interface_id); + h_ret = hipz_h_detach_mcqp(shca->ipz_hca_handle, + my_qp->ipz_qp_handle, + my_qp->galpas.kernel, + lid, subnet_prefix, interface_id); + if (h_ret != H_SUCCESS) + ehca_err(ibqp->device, + "ehca_qp=%p qp_num=%x hipz_h_detach_mcqp() failed " + "h_ret=%lx", my_qp, ibqp->qp_num, h_ret); + + return ehca2ib_return_code(h_ret); +} diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.c b/drivers/infiniband/hw/ehca/ehca_mrmw.c new file mode 100644 index 00000000000..5ca65441e1d --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_mrmw.c @@ -0,0 +1,2261 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * MR/MW functions + * + * Authors: Dietmar Decker + * Christoph Raisch + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include + +#include "ehca_iverbs.h" +#include "ehca_mrmw.h" +#include "hcp_if.h" +#include "hipz_hw.h" + +static struct kmem_cache *mr_cache; +static struct kmem_cache *mw_cache; + +static struct ehca_mr *ehca_mr_new(void) +{ + struct ehca_mr *me; + + me = kmem_cache_alloc(mr_cache, SLAB_KERNEL); + if (me) { + memset(me, 0, sizeof(struct ehca_mr)); + spin_lock_init(&me->mrlock); + } else + ehca_gen_err("alloc failed"); + + return me; +} + +static void ehca_mr_delete(struct ehca_mr *me) +{ + kmem_cache_free(mr_cache, me); +} + +static struct ehca_mw *ehca_mw_new(void) +{ + struct ehca_mw *me; + + me = kmem_cache_alloc(mw_cache, SLAB_KERNEL); + if (me) { + memset(me, 0, sizeof(struct ehca_mw)); + spin_lock_init(&me->mwlock); + } else + ehca_gen_err("alloc failed"); + + return me; +} + +static void ehca_mw_delete(struct ehca_mw *me) +{ + kmem_cache_free(mw_cache, me); +} + +/*----------------------------------------------------------------------*/ + +struct ib_mr *ehca_get_dma_mr(struct ib_pd *pd, int mr_access_flags) +{ + struct ib_mr *ib_mr; + int ret; + struct ehca_mr *e_maxmr; + struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); + struct ehca_shca *shca = + container_of(pd->device, struct ehca_shca, ib_device); + + if (shca->maxmr) { + e_maxmr = ehca_mr_new(); + if (!e_maxmr) { + ehca_err(&shca->ib_device, "out of memory"); + ib_mr = ERR_PTR(-ENOMEM); + goto get_dma_mr_exit0; + } + + ret = ehca_reg_maxmr(shca, e_maxmr, (u64*)KERNELBASE, + mr_access_flags, e_pd, + &e_maxmr->ib.ib_mr.lkey, + &e_maxmr->ib.ib_mr.rkey); + if (ret) { + ib_mr = ERR_PTR(ret); + goto get_dma_mr_exit0; + } + ib_mr = &e_maxmr->ib.ib_mr; + } else { + ehca_err(&shca->ib_device, "no internal max-MR exist!"); + ib_mr = ERR_PTR(-EINVAL); + goto get_dma_mr_exit0; + } + +get_dma_mr_exit0: + if (IS_ERR(ib_mr)) + ehca_err(&shca->ib_device, "rc=%lx pd=%p mr_access_flags=%x ", + PTR_ERR(ib_mr), pd, mr_access_flags); + return ib_mr; +} /* end ehca_get_dma_mr() */ + +/*----------------------------------------------------------------------*/ + +struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd, + struct ib_phys_buf *phys_buf_array, + int num_phys_buf, + int mr_access_flags, + u64 *iova_start) +{ + struct ib_mr *ib_mr; + int ret; + struct ehca_mr *e_mr; + struct ehca_shca *shca = + container_of(pd->device, struct ehca_shca, ib_device); + struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); + + u64 size; + struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + u32 num_pages_mr; + u32 num_pages_4k; /* 4k portion "pages" */ + + if ((num_phys_buf <= 0) || !phys_buf_array) { + ehca_err(pd->device, "bad input values: num_phys_buf=%x " + "phys_buf_array=%p", num_phys_buf, phys_buf_array); + ib_mr = ERR_PTR(-EINVAL); + goto reg_phys_mr_exit0; + } + if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && + !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || + ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && + !(mr_access_flags & IB_ACCESS_LOCAL_WRITE))) { + /* + * Remote Write Access requires Local Write Access + * Remote Atomic Access requires Local Write Access + */ + ehca_err(pd->device, "bad input values: mr_access_flags=%x", + mr_access_flags); + ib_mr = ERR_PTR(-EINVAL); + goto reg_phys_mr_exit0; + } + + /* check physical buffer list and calculate size */ + ret = ehca_mr_chk_buf_and_calc_size(phys_buf_array, num_phys_buf, + iova_start, &size); + if (ret) { + ib_mr = ERR_PTR(ret); + goto reg_phys_mr_exit0; + } + if ((size == 0) || + (((u64)iova_start + size) < (u64)iova_start)) { + ehca_err(pd->device, "bad input values: size=%lx iova_start=%p", + size, iova_start); + ib_mr = ERR_PTR(-EINVAL); + goto reg_phys_mr_exit0; + } + + e_mr = ehca_mr_new(); + if (!e_mr) { + ehca_err(pd->device, "out of memory"); + ib_mr = ERR_PTR(-ENOMEM); + goto reg_phys_mr_exit0; + } + + /* determine number of MR pages */ + num_pages_mr = ((((u64)iova_start % PAGE_SIZE) + size + + PAGE_SIZE - 1) / PAGE_SIZE); + num_pages_4k = ((((u64)iova_start % EHCA_PAGESIZE) + size + + EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); + + /* register MR on HCA */ + if (ehca_mr_is_maxmr(size, iova_start)) { + e_mr->flags |= EHCA_MR_FLAG_MAXMR; + ret = ehca_reg_maxmr(shca, e_mr, iova_start, mr_access_flags, + e_pd, &e_mr->ib.ib_mr.lkey, + &e_mr->ib.ib_mr.rkey); + if (ret) { + ib_mr = ERR_PTR(ret); + goto reg_phys_mr_exit1; + } + } else { + pginfo.type = EHCA_MR_PGI_PHYS; + pginfo.num_pages = num_pages_mr; + pginfo.num_4k = num_pages_4k; + pginfo.num_phys_buf = num_phys_buf; + pginfo.phys_buf_array = phys_buf_array; + pginfo.next_4k = (((u64)iova_start & ~PAGE_MASK) / + EHCA_PAGESIZE); + + ret = ehca_reg_mr(shca, e_mr, iova_start, size, mr_access_flags, + e_pd, &pginfo, &e_mr->ib.ib_mr.lkey, + &e_mr->ib.ib_mr.rkey); + if (ret) { + ib_mr = ERR_PTR(ret); + goto reg_phys_mr_exit1; + } + } + + /* successful registration of all pages */ + return &e_mr->ib.ib_mr; + +reg_phys_mr_exit1: + ehca_mr_delete(e_mr); +reg_phys_mr_exit0: + if (IS_ERR(ib_mr)) + ehca_err(pd->device, "rc=%lx pd=%p phys_buf_array=%p " + "num_phys_buf=%x mr_access_flags=%x iova_start=%p", + PTR_ERR(ib_mr), pd, phys_buf_array, + num_phys_buf, mr_access_flags, iova_start); + return ib_mr; +} /* end ehca_reg_phys_mr() */ + +/*----------------------------------------------------------------------*/ + +struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, + struct ib_umem *region, + int mr_access_flags, + struct ib_udata *udata) +{ + struct ib_mr *ib_mr; + struct ehca_mr *e_mr; + struct ehca_shca *shca = + container_of(pd->device, struct ehca_shca, ib_device); + struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); + struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + int ret; + u32 num_pages_mr; + u32 num_pages_4k; /* 4k portion "pages" */ + + if (!pd) { + ehca_gen_err("bad pd=%p", pd); + return ERR_PTR(-EFAULT); + } + if (!region) { + ehca_err(pd->device, "bad input values: region=%p", region); + ib_mr = ERR_PTR(-EINVAL); + goto reg_user_mr_exit0; + } + if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && + !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || + ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && + !(mr_access_flags & IB_ACCESS_LOCAL_WRITE))) { + /* + * Remote Write Access requires Local Write Access + * Remote Atomic Access requires Local Write Access + */ + ehca_err(pd->device, "bad input values: mr_access_flags=%x", + mr_access_flags); + ib_mr = ERR_PTR(-EINVAL); + goto reg_user_mr_exit0; + } + if (region->page_size != PAGE_SIZE) { + ehca_err(pd->device, "page size not supported, " + "region->page_size=%x", region->page_size); + ib_mr = ERR_PTR(-EINVAL); + goto reg_user_mr_exit0; + } + + if ((region->length == 0) || + ((region->virt_base + region->length) < region->virt_base)) { + ehca_err(pd->device, "bad input values: length=%lx " + "virt_base=%lx", region->length, region->virt_base); + ib_mr = ERR_PTR(-EINVAL); + goto reg_user_mr_exit0; + } + + e_mr = ehca_mr_new(); + if (!e_mr) { + ehca_err(pd->device, "out of memory"); + ib_mr = ERR_PTR(-ENOMEM); + goto reg_user_mr_exit0; + } + + /* determine number of MR pages */ + num_pages_mr = (((region->virt_base % PAGE_SIZE) + region->length + + PAGE_SIZE - 1) / PAGE_SIZE); + num_pages_4k = (((region->virt_base % EHCA_PAGESIZE) + region->length + + EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); + + /* register MR on HCA */ + pginfo.type = EHCA_MR_PGI_USER; + pginfo.num_pages = num_pages_mr; + pginfo.num_4k = num_pages_4k; + pginfo.region = region; + pginfo.next_4k = region->offset / EHCA_PAGESIZE; + pginfo.next_chunk = list_prepare_entry(pginfo.next_chunk, + (®ion->chunk_list), + list); + + ret = ehca_reg_mr(shca, e_mr, (u64*)region->virt_base, + region->length, mr_access_flags, e_pd, &pginfo, + &e_mr->ib.ib_mr.lkey, &e_mr->ib.ib_mr.rkey); + if (ret) { + ib_mr = ERR_PTR(ret); + goto reg_user_mr_exit1; + } + + /* successful registration of all pages */ + return &e_mr->ib.ib_mr; + +reg_user_mr_exit1: + ehca_mr_delete(e_mr); +reg_user_mr_exit0: + if (IS_ERR(ib_mr)) + ehca_err(pd->device, "rc=%lx pd=%p region=%p mr_access_flags=%x" + " udata=%p", + PTR_ERR(ib_mr), pd, region, mr_access_flags, udata); + return ib_mr; +} /* end ehca_reg_user_mr() */ + +/*----------------------------------------------------------------------*/ + +int ehca_rereg_phys_mr(struct ib_mr *mr, + int mr_rereg_mask, + struct ib_pd *pd, + struct ib_phys_buf *phys_buf_array, + int num_phys_buf, + int mr_access_flags, + u64 *iova_start) +{ + int ret; + + struct ehca_shca *shca = + container_of(mr->device, struct ehca_shca, ib_device); + struct ehca_mr *e_mr = container_of(mr, struct ehca_mr, ib.ib_mr); + struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); + u64 new_size; + u64 *new_start; + u32 new_acl; + struct ehca_pd *new_pd; + u32 tmp_lkey, tmp_rkey; + unsigned long sl_flags; + u32 num_pages_mr = 0; + u32 num_pages_4k = 0; /* 4k portion "pages" */ + struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + u32 cur_pid = current->tgid; + + if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && + (my_pd->ownpid != cur_pid)) { + ehca_err(mr->device, "Invalid caller pid=%x ownpid=%x", + cur_pid, my_pd->ownpid); + ret = -EINVAL; + goto rereg_phys_mr_exit0; + } + + if (!(mr_rereg_mask & IB_MR_REREG_TRANS)) { + /* TODO not supported, because PHYP rereg hCall needs pages */ + ehca_err(mr->device, "rereg without IB_MR_REREG_TRANS not " + "supported yet, mr_rereg_mask=%x", mr_rereg_mask); + ret = -EINVAL; + goto rereg_phys_mr_exit0; + } + + if (mr_rereg_mask & IB_MR_REREG_PD) { + if (!pd) { + ehca_err(mr->device, "rereg with bad pd, pd=%p " + "mr_rereg_mask=%x", pd, mr_rereg_mask); + ret = -EINVAL; + goto rereg_phys_mr_exit0; + } + } + + if ((mr_rereg_mask & + ~(IB_MR_REREG_TRANS | IB_MR_REREG_PD | IB_MR_REREG_ACCESS)) || + (mr_rereg_mask == 0)) { + ret = -EINVAL; + goto rereg_phys_mr_exit0; + } + + /* check other parameters */ + if (e_mr == shca->maxmr) { + /* should be impossible, however reject to be sure */ + ehca_err(mr->device, "rereg internal max-MR impossible, mr=%p " + "shca->maxmr=%p mr->lkey=%x", + mr, shca->maxmr, mr->lkey); + ret = -EINVAL; + goto rereg_phys_mr_exit0; + } + if (mr_rereg_mask & IB_MR_REREG_TRANS) { /* transl., i.e. addr/size */ + if (e_mr->flags & EHCA_MR_FLAG_FMR) { + ehca_err(mr->device, "not supported for FMR, mr=%p " + "flags=%x", mr, e_mr->flags); + ret = -EINVAL; + goto rereg_phys_mr_exit0; + } + if (!phys_buf_array || num_phys_buf <= 0) { + ehca_err(mr->device, "bad input values: mr_rereg_mask=%x" + " phys_buf_array=%p num_phys_buf=%x", + mr_rereg_mask, phys_buf_array, num_phys_buf); + ret = -EINVAL; + goto rereg_phys_mr_exit0; + } + } + if ((mr_rereg_mask & IB_MR_REREG_ACCESS) && /* change ACL */ + (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && + !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || + ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && + !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)))) { + /* + * Remote Write Access requires Local Write Access + * Remote Atomic Access requires Local Write Access + */ + ehca_err(mr->device, "bad input values: mr_rereg_mask=%x " + "mr_access_flags=%x", mr_rereg_mask, mr_access_flags); + ret = -EINVAL; + goto rereg_phys_mr_exit0; + } + + /* set requested values dependent on rereg request */ + spin_lock_irqsave(&e_mr->mrlock, sl_flags); + new_start = e_mr->start; /* new == old address */ + new_size = e_mr->size; /* new == old length */ + new_acl = e_mr->acl; /* new == old access control */ + new_pd = container_of(mr->pd,struct ehca_pd,ib_pd); /*new == old PD*/ + + if (mr_rereg_mask & IB_MR_REREG_TRANS) { + new_start = iova_start; /* change address */ + /* check physical buffer list and calculate size */ + ret = ehca_mr_chk_buf_and_calc_size(phys_buf_array, + num_phys_buf, iova_start, + &new_size); + if (ret) + goto rereg_phys_mr_exit1; + if ((new_size == 0) || + (((u64)iova_start + new_size) < (u64)iova_start)) { + ehca_err(mr->device, "bad input values: new_size=%lx " + "iova_start=%p", new_size, iova_start); + ret = -EINVAL; + goto rereg_phys_mr_exit1; + } + num_pages_mr = ((((u64)new_start % PAGE_SIZE) + new_size + + PAGE_SIZE - 1) / PAGE_SIZE); + num_pages_4k = ((((u64)new_start % EHCA_PAGESIZE) + new_size + + EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); + pginfo.type = EHCA_MR_PGI_PHYS; + pginfo.num_pages = num_pages_mr; + pginfo.num_4k = num_pages_4k; + pginfo.num_phys_buf = num_phys_buf; + pginfo.phys_buf_array = phys_buf_array; + pginfo.next_4k = (((u64)iova_start & ~PAGE_MASK) / + EHCA_PAGESIZE); + } + if (mr_rereg_mask & IB_MR_REREG_ACCESS) + new_acl = mr_access_flags; + if (mr_rereg_mask & IB_MR_REREG_PD) + new_pd = container_of(pd, struct ehca_pd, ib_pd); + + ret = ehca_rereg_mr(shca, e_mr, new_start, new_size, new_acl, + new_pd, &pginfo, &tmp_lkey, &tmp_rkey); + if (ret) + goto rereg_phys_mr_exit1; + + /* successful reregistration */ + if (mr_rereg_mask & IB_MR_REREG_PD) + mr->pd = pd; + mr->lkey = tmp_lkey; + mr->rkey = tmp_rkey; + +rereg_phys_mr_exit1: + spin_unlock_irqrestore(&e_mr->mrlock, sl_flags); +rereg_phys_mr_exit0: + if (ret) + ehca_err(mr->device, "ret=%x mr=%p mr_rereg_mask=%x pd=%p " + "phys_buf_array=%p num_phys_buf=%x mr_access_flags=%x " + "iova_start=%p", + ret, mr, mr_rereg_mask, pd, phys_buf_array, + num_phys_buf, mr_access_flags, iova_start); + return ret; +} /* end ehca_rereg_phys_mr() */ + +/*----------------------------------------------------------------------*/ + +int ehca_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr) +{ + int ret = 0; + u64 h_ret; + struct ehca_shca *shca = + container_of(mr->device, struct ehca_shca, ib_device); + struct ehca_mr *e_mr = container_of(mr, struct ehca_mr, ib.ib_mr); + struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); + u32 cur_pid = current->tgid; + unsigned long sl_flags; + struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + + if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && + (my_pd->ownpid != cur_pid)) { + ehca_err(mr->device, "Invalid caller pid=%x ownpid=%x", + cur_pid, my_pd->ownpid); + ret = -EINVAL; + goto query_mr_exit0; + } + + if ((e_mr->flags & EHCA_MR_FLAG_FMR)) { + ehca_err(mr->device, "not supported for FMR, mr=%p e_mr=%p " + "e_mr->flags=%x", mr, e_mr, e_mr->flags); + ret = -EINVAL; + goto query_mr_exit0; + } + + memset(mr_attr, 0, sizeof(struct ib_mr_attr)); + spin_lock_irqsave(&e_mr->mrlock, sl_flags); + + h_ret = hipz_h_query_mr(shca->ipz_hca_handle, e_mr, &hipzout); + if (h_ret != H_SUCCESS) { + ehca_err(mr->device, "hipz_mr_query failed, h_ret=%lx mr=%p " + "hca_hndl=%lx mr_hndl=%lx lkey=%x", + h_ret, mr, shca->ipz_hca_handle.handle, + e_mr->ipz_mr_handle.handle, mr->lkey); + ret = ehca_mrmw_map_hrc_query_mr(h_ret); + goto query_mr_exit1; + } + mr_attr->pd = mr->pd; + mr_attr->device_virt_addr = hipzout.vaddr; + mr_attr->size = hipzout.len; + mr_attr->lkey = hipzout.lkey; + mr_attr->rkey = hipzout.rkey; + ehca_mrmw_reverse_map_acl(&hipzout.acl, &mr_attr->mr_access_flags); + +query_mr_exit1: + spin_unlock_irqrestore(&e_mr->mrlock, sl_flags); +query_mr_exit0: + if (ret) + ehca_err(mr->device, "ret=%x mr=%p mr_attr=%p", + ret, mr, mr_attr); + return ret; +} /* end ehca_query_mr() */ + +/*----------------------------------------------------------------------*/ + +int ehca_dereg_mr(struct ib_mr *mr) +{ + int ret = 0; + u64 h_ret; + struct ehca_shca *shca = + container_of(mr->device, struct ehca_shca, ib_device); + struct ehca_mr *e_mr = container_of(mr, struct ehca_mr, ib.ib_mr); + struct ehca_pd *my_pd = container_of(mr->pd, struct ehca_pd, ib_pd); + u32 cur_pid = current->tgid; + + if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && + (my_pd->ownpid != cur_pid)) { + ehca_err(mr->device, "Invalid caller pid=%x ownpid=%x", + cur_pid, my_pd->ownpid); + ret = -EINVAL; + goto dereg_mr_exit0; + } + + if ((e_mr->flags & EHCA_MR_FLAG_FMR)) { + ehca_err(mr->device, "not supported for FMR, mr=%p e_mr=%p " + "e_mr->flags=%x", mr, e_mr, e_mr->flags); + ret = -EINVAL; + goto dereg_mr_exit0; + } else if (e_mr == shca->maxmr) { + /* should be impossible, however reject to be sure */ + ehca_err(mr->device, "dereg internal max-MR impossible, mr=%p " + "shca->maxmr=%p mr->lkey=%x", + mr, shca->maxmr, mr->lkey); + ret = -EINVAL; + goto dereg_mr_exit0; + } + + /* TODO: BUSY: MR still has bound window(s) */ + h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_mr); + if (h_ret != H_SUCCESS) { + ehca_err(mr->device, "hipz_free_mr failed, h_ret=%lx shca=%p " + "e_mr=%p hca_hndl=%lx mr_hndl=%lx mr->lkey=%x", + h_ret, shca, e_mr, shca->ipz_hca_handle.handle, + e_mr->ipz_mr_handle.handle, mr->lkey); + ret = ehca_mrmw_map_hrc_free_mr(h_ret); + goto dereg_mr_exit0; + } + + /* successful deregistration */ + ehca_mr_delete(e_mr); + +dereg_mr_exit0: + if (ret) + ehca_err(mr->device, "ret=%x mr=%p", ret, mr); + return ret; +} /* end ehca_dereg_mr() */ + +/*----------------------------------------------------------------------*/ + +struct ib_mw *ehca_alloc_mw(struct ib_pd *pd) +{ + struct ib_mw *ib_mw; + u64 h_ret; + struct ehca_mw *e_mw; + struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); + struct ehca_shca *shca = + container_of(pd->device, struct ehca_shca, ib_device); + struct ehca_mw_hipzout_parms hipzout = {{0},0}; + + e_mw = ehca_mw_new(); + if (!e_mw) { + ib_mw = ERR_PTR(-ENOMEM); + goto alloc_mw_exit0; + } + + h_ret = hipz_h_alloc_resource_mw(shca->ipz_hca_handle, e_mw, + e_pd->fw_pd, &hipzout); + if (h_ret != H_SUCCESS) { + ehca_err(pd->device, "hipz_mw_allocate failed, h_ret=%lx " + "shca=%p hca_hndl=%lx mw=%p", + h_ret, shca, shca->ipz_hca_handle.handle, e_mw); + ib_mw = ERR_PTR(ehca_mrmw_map_hrc_alloc(h_ret)); + goto alloc_mw_exit1; + } + /* successful MW allocation */ + e_mw->ipz_mw_handle = hipzout.handle; + e_mw->ib_mw.rkey = hipzout.rkey; + return &e_mw->ib_mw; + +alloc_mw_exit1: + ehca_mw_delete(e_mw); +alloc_mw_exit0: + if (IS_ERR(ib_mw)) + ehca_err(pd->device, "rc=%lx pd=%p", PTR_ERR(ib_mw), pd); + return ib_mw; +} /* end ehca_alloc_mw() */ + +/*----------------------------------------------------------------------*/ + +int ehca_bind_mw(struct ib_qp *qp, + struct ib_mw *mw, + struct ib_mw_bind *mw_bind) +{ + /* TODO: not supported up to now */ + ehca_gen_err("bind MW currently not supported by HCAD"); + + return -EPERM; +} /* end ehca_bind_mw() */ + +/*----------------------------------------------------------------------*/ + +int ehca_dealloc_mw(struct ib_mw *mw) +{ + u64 h_ret; + struct ehca_shca *shca = + container_of(mw->device, struct ehca_shca, ib_device); + struct ehca_mw *e_mw = container_of(mw, struct ehca_mw, ib_mw); + + h_ret = hipz_h_free_resource_mw(shca->ipz_hca_handle, e_mw); + if (h_ret != H_SUCCESS) { + ehca_err(mw->device, "hipz_free_mw failed, h_ret=%lx shca=%p " + "mw=%p rkey=%x hca_hndl=%lx mw_hndl=%lx", + h_ret, shca, mw, mw->rkey, shca->ipz_hca_handle.handle, + e_mw->ipz_mw_handle.handle); + return ehca_mrmw_map_hrc_free_mw(h_ret); + } + /* successful deallocation */ + ehca_mw_delete(e_mw); + return 0; +} /* end ehca_dealloc_mw() */ + +/*----------------------------------------------------------------------*/ + +struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, + int mr_access_flags, + struct ib_fmr_attr *fmr_attr) +{ + struct ib_fmr *ib_fmr; + struct ehca_shca *shca = + container_of(pd->device, struct ehca_shca, ib_device); + struct ehca_pd *e_pd = container_of(pd, struct ehca_pd, ib_pd); + struct ehca_mr *e_fmr; + int ret; + u32 tmp_lkey, tmp_rkey; + struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + + /* check other parameters */ + if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) && + !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) || + ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) && + !(mr_access_flags & IB_ACCESS_LOCAL_WRITE))) { + /* + * Remote Write Access requires Local Write Access + * Remote Atomic Access requires Local Write Access + */ + ehca_err(pd->device, "bad input values: mr_access_flags=%x", + mr_access_flags); + ib_fmr = ERR_PTR(-EINVAL); + goto alloc_fmr_exit0; + } + if (mr_access_flags & IB_ACCESS_MW_BIND) { + ehca_err(pd->device, "bad input values: mr_access_flags=%x", + mr_access_flags); + ib_fmr = ERR_PTR(-EINVAL); + goto alloc_fmr_exit0; + } + if ((fmr_attr->max_pages == 0) || (fmr_attr->max_maps == 0)) { + ehca_err(pd->device, "bad input values: fmr_attr->max_pages=%x " + "fmr_attr->max_maps=%x fmr_attr->page_shift=%x", + fmr_attr->max_pages, fmr_attr->max_maps, + fmr_attr->page_shift); + ib_fmr = ERR_PTR(-EINVAL); + goto alloc_fmr_exit0; + } + if (((1 << fmr_attr->page_shift) != EHCA_PAGESIZE) && + ((1 << fmr_attr->page_shift) != PAGE_SIZE)) { + ehca_err(pd->device, "unsupported fmr_attr->page_shift=%x", + fmr_attr->page_shift); + ib_fmr = ERR_PTR(-EINVAL); + goto alloc_fmr_exit0; + } + + e_fmr = ehca_mr_new(); + if (!e_fmr) { + ib_fmr = ERR_PTR(-ENOMEM); + goto alloc_fmr_exit0; + } + e_fmr->flags |= EHCA_MR_FLAG_FMR; + + /* register MR on HCA */ + ret = ehca_reg_mr(shca, e_fmr, NULL, + fmr_attr->max_pages * (1 << fmr_attr->page_shift), + mr_access_flags, e_pd, &pginfo, + &tmp_lkey, &tmp_rkey); + if (ret) { + ib_fmr = ERR_PTR(ret); + goto alloc_fmr_exit1; + } + + /* successful */ + e_fmr->fmr_page_size = 1 << fmr_attr->page_shift; + e_fmr->fmr_max_pages = fmr_attr->max_pages; + e_fmr->fmr_max_maps = fmr_attr->max_maps; + e_fmr->fmr_map_cnt = 0; + return &e_fmr->ib.ib_fmr; + +alloc_fmr_exit1: + ehca_mr_delete(e_fmr); +alloc_fmr_exit0: + if (IS_ERR(ib_fmr)) + ehca_err(pd->device, "rc=%lx pd=%p mr_access_flags=%x " + "fmr_attr=%p", PTR_ERR(ib_fmr), pd, + mr_access_flags, fmr_attr); + return ib_fmr; +} /* end ehca_alloc_fmr() */ + +/*----------------------------------------------------------------------*/ + +int ehca_map_phys_fmr(struct ib_fmr *fmr, + u64 *page_list, + int list_len, + u64 iova) +{ + int ret; + struct ehca_shca *shca = + container_of(fmr->device, struct ehca_shca, ib_device); + struct ehca_mr *e_fmr = container_of(fmr, struct ehca_mr, ib.ib_fmr); + struct ehca_pd *e_pd = container_of(fmr->pd, struct ehca_pd, ib_pd); + struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + u32 tmp_lkey, tmp_rkey; + + if (!(e_fmr->flags & EHCA_MR_FLAG_FMR)) { + ehca_err(fmr->device, "not a FMR, e_fmr=%p e_fmr->flags=%x", + e_fmr, e_fmr->flags); + ret = -EINVAL; + goto map_phys_fmr_exit0; + } + ret = ehca_fmr_check_page_list(e_fmr, page_list, list_len); + if (ret) + goto map_phys_fmr_exit0; + if (iova % e_fmr->fmr_page_size) { + /* only whole-numbered pages */ + ehca_err(fmr->device, "bad iova, iova=%lx fmr_page_size=%x", + iova, e_fmr->fmr_page_size); + ret = -EINVAL; + goto map_phys_fmr_exit0; + } + if (e_fmr->fmr_map_cnt >= e_fmr->fmr_max_maps) { + /* HCAD does not limit the maps, however trace this anyway */ + ehca_info(fmr->device, "map limit exceeded, fmr=%p " + "e_fmr->fmr_map_cnt=%x e_fmr->fmr_max_maps=%x", + fmr, e_fmr->fmr_map_cnt, e_fmr->fmr_max_maps); + } + + pginfo.type = EHCA_MR_PGI_FMR; + pginfo.num_pages = list_len; + pginfo.num_4k = list_len * (e_fmr->fmr_page_size / EHCA_PAGESIZE); + pginfo.page_list = page_list; + pginfo.next_4k = ((iova & (e_fmr->fmr_page_size-1)) / + EHCA_PAGESIZE); + + ret = ehca_rereg_mr(shca, e_fmr, (u64*)iova, + list_len * e_fmr->fmr_page_size, + e_fmr->acl, e_pd, &pginfo, &tmp_lkey, &tmp_rkey); + if (ret) + goto map_phys_fmr_exit0; + + /* successful reregistration */ + e_fmr->fmr_map_cnt++; + e_fmr->ib.ib_fmr.lkey = tmp_lkey; + e_fmr->ib.ib_fmr.rkey = tmp_rkey; + return 0; + +map_phys_fmr_exit0: + if (ret) + ehca_err(fmr->device, "ret=%x fmr=%p page_list=%p list_len=%x " + "iova=%lx", + ret, fmr, page_list, list_len, iova); + return ret; +} /* end ehca_map_phys_fmr() */ + +/*----------------------------------------------------------------------*/ + +int ehca_unmap_fmr(struct list_head *fmr_list) +{ + int ret = 0; + struct ib_fmr *ib_fmr; + struct ehca_shca *shca = NULL; + struct ehca_shca *prev_shca; + struct ehca_mr *e_fmr; + u32 num_fmr = 0; + u32 unmap_fmr_cnt = 0; + + /* check all FMR belong to same SHCA, and check internal flag */ + list_for_each_entry(ib_fmr, fmr_list, list) { + prev_shca = shca; + if (!ib_fmr) { + ehca_gen_err("bad fmr=%p in list", ib_fmr); + ret = -EINVAL; + goto unmap_fmr_exit0; + } + shca = container_of(ib_fmr->device, struct ehca_shca, + ib_device); + e_fmr = container_of(ib_fmr, struct ehca_mr, ib.ib_fmr); + if ((shca != prev_shca) && prev_shca) { + ehca_err(&shca->ib_device, "SHCA mismatch, shca=%p " + "prev_shca=%p e_fmr=%p", + shca, prev_shca, e_fmr); + ret = -EINVAL; + goto unmap_fmr_exit0; + } + if (!(e_fmr->flags & EHCA_MR_FLAG_FMR)) { + ehca_err(&shca->ib_device, "not a FMR, e_fmr=%p " + "e_fmr->flags=%x", e_fmr, e_fmr->flags); + ret = -EINVAL; + goto unmap_fmr_exit0; + } + num_fmr++; + } + + /* loop over all FMRs to unmap */ + list_for_each_entry(ib_fmr, fmr_list, list) { + unmap_fmr_cnt++; + e_fmr = container_of(ib_fmr, struct ehca_mr, ib.ib_fmr); + shca = container_of(ib_fmr->device, struct ehca_shca, + ib_device); + ret = ehca_unmap_one_fmr(shca, e_fmr); + if (ret) { + /* unmap failed, stop unmapping of rest of FMRs */ + ehca_err(&shca->ib_device, "unmap of one FMR failed, " + "stop rest, e_fmr=%p num_fmr=%x " + "unmap_fmr_cnt=%x lkey=%x", e_fmr, num_fmr, + unmap_fmr_cnt, e_fmr->ib.ib_fmr.lkey); + goto unmap_fmr_exit0; + } + } + +unmap_fmr_exit0: + if (ret) + ehca_gen_err("ret=%x fmr_list=%p num_fmr=%x unmap_fmr_cnt=%x", + ret, fmr_list, num_fmr, unmap_fmr_cnt); + return ret; +} /* end ehca_unmap_fmr() */ + +/*----------------------------------------------------------------------*/ + +int ehca_dealloc_fmr(struct ib_fmr *fmr) +{ + int ret; + u64 h_ret; + struct ehca_shca *shca = + container_of(fmr->device, struct ehca_shca, ib_device); + struct ehca_mr *e_fmr = container_of(fmr, struct ehca_mr, ib.ib_fmr); + + if (!(e_fmr->flags & EHCA_MR_FLAG_FMR)) { + ehca_err(fmr->device, "not a FMR, e_fmr=%p e_fmr->flags=%x", + e_fmr, e_fmr->flags); + ret = -EINVAL; + goto free_fmr_exit0; + } + + h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); + if (h_ret != H_SUCCESS) { + ehca_err(fmr->device, "hipz_free_mr failed, h_ret=%lx e_fmr=%p " + "hca_hndl=%lx fmr_hndl=%lx fmr->lkey=%x", + h_ret, e_fmr, shca->ipz_hca_handle.handle, + e_fmr->ipz_mr_handle.handle, fmr->lkey); + ret = ehca_mrmw_map_hrc_free_mr(h_ret); + goto free_fmr_exit0; + } + /* successful deregistration */ + ehca_mr_delete(e_fmr); + return 0; + +free_fmr_exit0: + if (ret) + ehca_err(&shca->ib_device, "ret=%x fmr=%p", ret, fmr); + return ret; +} /* end ehca_dealloc_fmr() */ + +/*----------------------------------------------------------------------*/ + +int ehca_reg_mr(struct ehca_shca *shca, + struct ehca_mr *e_mr, + u64 *iova_start, + u64 size, + int acl, + struct ehca_pd *e_pd, + struct ehca_mr_pginfo *pginfo, + u32 *lkey, /*OUT*/ + u32 *rkey) /*OUT*/ +{ + int ret; + u64 h_ret; + u32 hipz_acl; + struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + + ehca_mrmw_map_acl(acl, &hipz_acl); + ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); + if (ehca_use_hp_mr == 1) + hipz_acl |= 0x00000001; + + h_ret = hipz_h_alloc_resource_mr(shca->ipz_hca_handle, e_mr, + (u64)iova_start, size, hipz_acl, + e_pd->fw_pd, &hipzout); + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "hipz_alloc_mr failed, h_ret=%lx " + "hca_hndl=%lx", h_ret, shca->ipz_hca_handle.handle); + ret = ehca_mrmw_map_hrc_alloc(h_ret); + goto ehca_reg_mr_exit0; + } + + e_mr->ipz_mr_handle = hipzout.handle; + + ret = ehca_reg_mr_rpages(shca, e_mr, pginfo); + if (ret) + goto ehca_reg_mr_exit1; + + /* successful registration */ + e_mr->num_pages = pginfo->num_pages; + e_mr->num_4k = pginfo->num_4k; + e_mr->start = iova_start; + e_mr->size = size; + e_mr->acl = acl; + *lkey = hipzout.lkey; + *rkey = hipzout.rkey; + return 0; + +ehca_reg_mr_exit1: + h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_mr); + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "h_ret=%lx shca=%p e_mr=%p " + "iova_start=%p size=%lx acl=%x e_pd=%p lkey=%x " + "pginfo=%p num_pages=%lx num_4k=%lx ret=%x", + h_ret, shca, e_mr, iova_start, size, acl, e_pd, + hipzout.lkey, pginfo, pginfo->num_pages, + pginfo->num_4k, ret); + ehca_err(&shca->ib_device, "internal error in ehca_reg_mr, " + "not recoverable"); + } +ehca_reg_mr_exit0: + if (ret) + ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p " + "iova_start=%p size=%lx acl=%x e_pd=%p pginfo=%p " + "num_pages=%lx num_4k=%lx", + ret, shca, e_mr, iova_start, size, acl, e_pd, pginfo, + pginfo->num_pages, pginfo->num_4k); + return ret; +} /* end ehca_reg_mr() */ + +/*----------------------------------------------------------------------*/ + +int ehca_reg_mr_rpages(struct ehca_shca *shca, + struct ehca_mr *e_mr, + struct ehca_mr_pginfo *pginfo) +{ + int ret = 0; + u64 h_ret; + u32 rnum; + u64 rpage; + u32 i; + u64 *kpage; + + kpage = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); + if (!kpage) { + ehca_err(&shca->ib_device, "kpage alloc failed"); + ret = -ENOMEM; + goto ehca_reg_mr_rpages_exit0; + } + + /* max 512 pages per shot */ + for (i = 0; i < ((pginfo->num_4k + 512 - 1) / 512); i++) { + + if (i == ((pginfo->num_4k + 512 - 1) / 512) - 1) { + rnum = pginfo->num_4k % 512; /* last shot */ + if (rnum == 0) + rnum = 512; /* last shot is full */ + } else + rnum = 512; + + if (rnum > 1) { + ret = ehca_set_pagebuf(e_mr, pginfo, rnum, kpage); + if (ret) { + ehca_err(&shca->ib_device, "ehca_set_pagebuf " + "bad rc, ret=%x rnum=%x kpage=%p", + ret, rnum, kpage); + ret = -EFAULT; + goto ehca_reg_mr_rpages_exit1; + } + rpage = virt_to_abs(kpage); + if (!rpage) { + ehca_err(&shca->ib_device, "kpage=%p i=%x", + kpage, i); + ret = -EFAULT; + goto ehca_reg_mr_rpages_exit1; + } + } else { /* rnum==1 */ + ret = ehca_set_pagebuf_1(e_mr, pginfo, &rpage); + if (ret) { + ehca_err(&shca->ib_device, "ehca_set_pagebuf_1 " + "bad rc, ret=%x i=%x", ret, i); + ret = -EFAULT; + goto ehca_reg_mr_rpages_exit1; + } + } + + h_ret = hipz_h_register_rpage_mr(shca->ipz_hca_handle, e_mr, + 0, /* pagesize 4k */ + 0, rpage, rnum); + + if (i == ((pginfo->num_4k + 512 - 1) / 512) - 1) { + /* + * check for 'registration complete'==H_SUCCESS + * and for 'page registered'==H_PAGE_REGISTERED + */ + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "last " + "hipz_reg_rpage_mr failed, h_ret=%lx " + "e_mr=%p i=%x hca_hndl=%lx mr_hndl=%lx" + " lkey=%x", h_ret, e_mr, i, + shca->ipz_hca_handle.handle, + e_mr->ipz_mr_handle.handle, + e_mr->ib.ib_mr.lkey); + ret = ehca_mrmw_map_hrc_rrpg_last(h_ret); + break; + } else + ret = 0; + } else if (h_ret != H_PAGE_REGISTERED) { + ehca_err(&shca->ib_device, "hipz_reg_rpage_mr failed, " + "h_ret=%lx e_mr=%p i=%x lkey=%x hca_hndl=%lx " + "mr_hndl=%lx", h_ret, e_mr, i, + e_mr->ib.ib_mr.lkey, + shca->ipz_hca_handle.handle, + e_mr->ipz_mr_handle.handle); + ret = ehca_mrmw_map_hrc_rrpg_notlast(h_ret); + break; + } else + ret = 0; + } /* end for(i) */ + + +ehca_reg_mr_rpages_exit1: + kfree(kpage); +ehca_reg_mr_rpages_exit0: + if (ret) + ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p pginfo=%p " + "num_pages=%lx num_4k=%lx", ret, shca, e_mr, pginfo, + pginfo->num_pages, pginfo->num_4k); + return ret; +} /* end ehca_reg_mr_rpages() */ + +/*----------------------------------------------------------------------*/ + +inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca, + struct ehca_mr *e_mr, + u64 *iova_start, + u64 size, + u32 acl, + struct ehca_pd *e_pd, + struct ehca_mr_pginfo *pginfo, + u32 *lkey, /*OUT*/ + u32 *rkey) /*OUT*/ +{ + int ret; + u64 h_ret; + u32 hipz_acl; + u64 *kpage; + u64 rpage; + struct ehca_mr_pginfo pginfo_save; + struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + + ehca_mrmw_map_acl(acl, &hipz_acl); + ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); + + kpage = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); + if (!kpage) { + ehca_err(&shca->ib_device, "kpage alloc failed"); + ret = -ENOMEM; + goto ehca_rereg_mr_rereg1_exit0; + } + + pginfo_save = *pginfo; + ret = ehca_set_pagebuf(e_mr, pginfo, pginfo->num_4k, kpage); + if (ret) { + ehca_err(&shca->ib_device, "set pagebuf failed, e_mr=%p " + "pginfo=%p type=%x num_pages=%lx num_4k=%lx kpage=%p", + e_mr, pginfo, pginfo->type, pginfo->num_pages, + pginfo->num_4k,kpage); + goto ehca_rereg_mr_rereg1_exit1; + } + rpage = virt_to_abs(kpage); + if (!rpage) { + ehca_err(&shca->ib_device, "kpage=%p", kpage); + ret = -EFAULT; + goto ehca_rereg_mr_rereg1_exit1; + } + h_ret = hipz_h_reregister_pmr(shca->ipz_hca_handle, e_mr, + (u64)iova_start, size, hipz_acl, + e_pd->fw_pd, rpage, &hipzout); + if (h_ret != H_SUCCESS) { + /* + * reregistration unsuccessful, try it again with the 3 hCalls, + * e.g. this is required in case H_MR_CONDITION + * (MW bound or MR is shared) + */ + ehca_warn(&shca->ib_device, "hipz_h_reregister_pmr failed " + "(Rereg1), h_ret=%lx e_mr=%p", h_ret, e_mr); + *pginfo = pginfo_save; + ret = -EAGAIN; + } else if ((u64*)hipzout.vaddr != iova_start) { + ehca_err(&shca->ib_device, "PHYP changed iova_start in " + "rereg_pmr, iova_start=%p iova_start_out=%lx e_mr=%p " + "mr_handle=%lx lkey=%x lkey_out=%x", iova_start, + hipzout.vaddr, e_mr, e_mr->ipz_mr_handle.handle, + e_mr->ib.ib_mr.lkey, hipzout.lkey); + ret = -EFAULT; + } else { + /* + * successful reregistration + * note: start and start_out are identical for eServer HCAs + */ + e_mr->num_pages = pginfo->num_pages; + e_mr->num_4k = pginfo->num_4k; + e_mr->start = iova_start; + e_mr->size = size; + e_mr->acl = acl; + *lkey = hipzout.lkey; + *rkey = hipzout.rkey; + } + +ehca_rereg_mr_rereg1_exit1: + kfree(kpage); +ehca_rereg_mr_rereg1_exit0: + if ( ret && (ret != -EAGAIN) ) + ehca_err(&shca->ib_device, "ret=%x lkey=%x rkey=%x " + "pginfo=%p num_pages=%lx num_4k=%lx", + ret, *lkey, *rkey, pginfo, pginfo->num_pages, + pginfo->num_4k); + return ret; +} /* end ehca_rereg_mr_rereg1() */ + +/*----------------------------------------------------------------------*/ + +int ehca_rereg_mr(struct ehca_shca *shca, + struct ehca_mr *e_mr, + u64 *iova_start, + u64 size, + int acl, + struct ehca_pd *e_pd, + struct ehca_mr_pginfo *pginfo, + u32 *lkey, + u32 *rkey) +{ + int ret = 0; + u64 h_ret; + int rereg_1_hcall = 1; /* 1: use hipz_h_reregister_pmr directly */ + int rereg_3_hcall = 0; /* 1: use 3 hipz calls for reregistration */ + + /* first determine reregistration hCall(s) */ + if ((pginfo->num_4k > 512) || (e_mr->num_4k > 512) || + (pginfo->num_4k > e_mr->num_4k)) { + ehca_dbg(&shca->ib_device, "Rereg3 case, pginfo->num_4k=%lx " + "e_mr->num_4k=%x", pginfo->num_4k, e_mr->num_4k); + rereg_1_hcall = 0; + rereg_3_hcall = 1; + } + + if (e_mr->flags & EHCA_MR_FLAG_MAXMR) { /* check for max-MR */ + rereg_1_hcall = 0; + rereg_3_hcall = 1; + e_mr->flags &= ~EHCA_MR_FLAG_MAXMR; + ehca_err(&shca->ib_device, "Rereg MR for max-MR! e_mr=%p", + e_mr); + } + + if (rereg_1_hcall) { + ret = ehca_rereg_mr_rereg1(shca, e_mr, iova_start, size, + acl, e_pd, pginfo, lkey, rkey); + if (ret) { + if (ret == -EAGAIN) + rereg_3_hcall = 1; + else + goto ehca_rereg_mr_exit0; + } + } + + if (rereg_3_hcall) { + struct ehca_mr save_mr; + + /* first deregister old MR */ + h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_mr); + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "hipz_free_mr failed, " + "h_ret=%lx e_mr=%p hca_hndl=%lx mr_hndl=%lx " + "mr->lkey=%x", + h_ret, e_mr, shca->ipz_hca_handle.handle, + e_mr->ipz_mr_handle.handle, + e_mr->ib.ib_mr.lkey); + ret = ehca_mrmw_map_hrc_free_mr(h_ret); + goto ehca_rereg_mr_exit0; + } + /* clean ehca_mr_t, without changing struct ib_mr and lock */ + save_mr = *e_mr; + ehca_mr_deletenew(e_mr); + + /* set some MR values */ + e_mr->flags = save_mr.flags; + e_mr->fmr_page_size = save_mr.fmr_page_size; + e_mr->fmr_max_pages = save_mr.fmr_max_pages; + e_mr->fmr_max_maps = save_mr.fmr_max_maps; + e_mr->fmr_map_cnt = save_mr.fmr_map_cnt; + + ret = ehca_reg_mr(shca, e_mr, iova_start, size, acl, + e_pd, pginfo, lkey, rkey); + if (ret) { + u32 offset = (u64)(&e_mr->flags) - (u64)e_mr; + memcpy(&e_mr->flags, &(save_mr.flags), + sizeof(struct ehca_mr) - offset); + goto ehca_rereg_mr_exit0; + } + } + +ehca_rereg_mr_exit0: + if (ret) + ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p " + "iova_start=%p size=%lx acl=%x e_pd=%p pginfo=%p " + "num_pages=%lx lkey=%x rkey=%x rereg_1_hcall=%x " + "rereg_3_hcall=%x", ret, shca, e_mr, iova_start, size, + acl, e_pd, pginfo, pginfo->num_pages, *lkey, *rkey, + rereg_1_hcall, rereg_3_hcall); + return ret; +} /* end ehca_rereg_mr() */ + +/*----------------------------------------------------------------------*/ + +int ehca_unmap_one_fmr(struct ehca_shca *shca, + struct ehca_mr *e_fmr) +{ + int ret = 0; + u64 h_ret; + int rereg_1_hcall = 1; /* 1: use hipz_mr_reregister directly */ + int rereg_3_hcall = 0; /* 1: use 3 hipz calls for unmapping */ + struct ehca_pd *e_pd = + container_of(e_fmr->ib.ib_fmr.pd, struct ehca_pd, ib_pd); + struct ehca_mr save_fmr; + u32 tmp_lkey, tmp_rkey; + struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + + /* first check if reregistration hCall can be used for unmap */ + if (e_fmr->fmr_max_pages > 512) { + rereg_1_hcall = 0; + rereg_3_hcall = 1; + } + + if (rereg_1_hcall) { + /* + * note: after using rereg hcall with len=0, + * rereg hcall must be used again for registering pages + */ + h_ret = hipz_h_reregister_pmr(shca->ipz_hca_handle, e_fmr, 0, + 0, 0, e_pd->fw_pd, 0, &hipzout); + if (h_ret != H_SUCCESS) { + /* + * should not happen, because length checked above, + * FMRs are not shared and no MW bound to FMRs + */ + ehca_err(&shca->ib_device, "hipz_reregister_pmr failed " + "(Rereg1), h_ret=%lx e_fmr=%p hca_hndl=%lx " + "mr_hndl=%lx lkey=%x lkey_out=%x", + h_ret, e_fmr, shca->ipz_hca_handle.handle, + e_fmr->ipz_mr_handle.handle, + e_fmr->ib.ib_fmr.lkey, hipzout.lkey); + rereg_3_hcall = 1; + } else { + /* successful reregistration */ + e_fmr->start = NULL; + e_fmr->size = 0; + tmp_lkey = hipzout.lkey; + tmp_rkey = hipzout.rkey; + } + } + + if (rereg_3_hcall) { + struct ehca_mr save_mr; + + /* first free old FMR */ + h_ret = hipz_h_free_resource_mr(shca->ipz_hca_handle, e_fmr); + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "hipz_free_mr failed, " + "h_ret=%lx e_fmr=%p hca_hndl=%lx mr_hndl=%lx " + "lkey=%x", + h_ret, e_fmr, shca->ipz_hca_handle.handle, + e_fmr->ipz_mr_handle.handle, + e_fmr->ib.ib_fmr.lkey); + ret = ehca_mrmw_map_hrc_free_mr(h_ret); + goto ehca_unmap_one_fmr_exit0; + } + /* clean ehca_mr_t, without changing lock */ + save_fmr = *e_fmr; + ehca_mr_deletenew(e_fmr); + + /* set some MR values */ + e_fmr->flags = save_fmr.flags; + e_fmr->fmr_page_size = save_fmr.fmr_page_size; + e_fmr->fmr_max_pages = save_fmr.fmr_max_pages; + e_fmr->fmr_max_maps = save_fmr.fmr_max_maps; + e_fmr->fmr_map_cnt = save_fmr.fmr_map_cnt; + e_fmr->acl = save_fmr.acl; + + pginfo.type = EHCA_MR_PGI_FMR; + pginfo.num_pages = 0; + pginfo.num_4k = 0; + ret = ehca_reg_mr(shca, e_fmr, NULL, + (e_fmr->fmr_max_pages * e_fmr->fmr_page_size), + e_fmr->acl, e_pd, &pginfo, &tmp_lkey, + &tmp_rkey); + if (ret) { + u32 offset = (u64)(&e_fmr->flags) - (u64)e_fmr; + memcpy(&e_fmr->flags, &(save_mr.flags), + sizeof(struct ehca_mr) - offset); + goto ehca_unmap_one_fmr_exit0; + } + } + +ehca_unmap_one_fmr_exit0: + if (ret) + ehca_err(&shca->ib_device, "ret=%x tmp_lkey=%x tmp_rkey=%x " + "fmr_max_pages=%x rereg_1_hcall=%x rereg_3_hcall=%x", + ret, tmp_lkey, tmp_rkey, e_fmr->fmr_max_pages, + rereg_1_hcall, rereg_3_hcall); + return ret; +} /* end ehca_unmap_one_fmr() */ + +/*----------------------------------------------------------------------*/ + +int ehca_reg_smr(struct ehca_shca *shca, + struct ehca_mr *e_origmr, + struct ehca_mr *e_newmr, + u64 *iova_start, + int acl, + struct ehca_pd *e_pd, + u32 *lkey, /*OUT*/ + u32 *rkey) /*OUT*/ +{ + int ret = 0; + u64 h_ret; + u32 hipz_acl; + struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + + ehca_mrmw_map_acl(acl, &hipz_acl); + ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); + + h_ret = hipz_h_register_smr(shca->ipz_hca_handle, e_newmr, e_origmr, + (u64)iova_start, hipz_acl, e_pd->fw_pd, + &hipzout); + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "hipz_reg_smr failed, h_ret=%lx " + "shca=%p e_origmr=%p e_newmr=%p iova_start=%p acl=%x " + "e_pd=%p hca_hndl=%lx mr_hndl=%lx lkey=%x", + h_ret, shca, e_origmr, e_newmr, iova_start, acl, e_pd, + shca->ipz_hca_handle.handle, + e_origmr->ipz_mr_handle.handle, + e_origmr->ib.ib_mr.lkey); + ret = ehca_mrmw_map_hrc_reg_smr(h_ret); + goto ehca_reg_smr_exit0; + } + /* successful registration */ + e_newmr->num_pages = e_origmr->num_pages; + e_newmr->num_4k = e_origmr->num_4k; + e_newmr->start = iova_start; + e_newmr->size = e_origmr->size; + e_newmr->acl = acl; + e_newmr->ipz_mr_handle = hipzout.handle; + *lkey = hipzout.lkey; + *rkey = hipzout.rkey; + return 0; + +ehca_reg_smr_exit0: + if (ret) + ehca_err(&shca->ib_device, "ret=%x shca=%p e_origmr=%p " + "e_newmr=%p iova_start=%p acl=%x e_pd=%p", + ret, shca, e_origmr, e_newmr, iova_start, acl, e_pd); + return ret; +} /* end ehca_reg_smr() */ + +/*----------------------------------------------------------------------*/ + +/* register internal max-MR to internal SHCA */ +int ehca_reg_internal_maxmr( + struct ehca_shca *shca, + struct ehca_pd *e_pd, + struct ehca_mr **e_maxmr) /*OUT*/ +{ + int ret; + struct ehca_mr *e_mr; + u64 *iova_start; + u64 size_maxmr; + struct ehca_mr_pginfo pginfo={0,0,0,0,0,0,0,NULL,0,NULL,NULL,0,NULL,0}; + struct ib_phys_buf ib_pbuf; + u32 num_pages_mr; + u32 num_pages_4k; /* 4k portion "pages" */ + + e_mr = ehca_mr_new(); + if (!e_mr) { + ehca_err(&shca->ib_device, "out of memory"); + ret = -ENOMEM; + goto ehca_reg_internal_maxmr_exit0; + } + e_mr->flags |= EHCA_MR_FLAG_MAXMR; + + /* register internal max-MR on HCA */ + size_maxmr = (u64)high_memory - PAGE_OFFSET; + iova_start = (u64*)KERNELBASE; + ib_pbuf.addr = 0; + ib_pbuf.size = size_maxmr; + num_pages_mr = ((((u64)iova_start % PAGE_SIZE) + size_maxmr + + PAGE_SIZE - 1) / PAGE_SIZE); + num_pages_4k = ((((u64)iova_start % EHCA_PAGESIZE) + size_maxmr + + EHCA_PAGESIZE - 1) / EHCA_PAGESIZE); + + pginfo.type = EHCA_MR_PGI_PHYS; + pginfo.num_pages = num_pages_mr; + pginfo.num_4k = num_pages_4k; + pginfo.num_phys_buf = 1; + pginfo.phys_buf_array = &ib_pbuf; + + ret = ehca_reg_mr(shca, e_mr, iova_start, size_maxmr, 0, e_pd, + &pginfo, &e_mr->ib.ib_mr.lkey, + &e_mr->ib.ib_mr.rkey); + if (ret) { + ehca_err(&shca->ib_device, "reg of internal max MR failed, " + "e_mr=%p iova_start=%p size_maxmr=%lx num_pages_mr=%x " + "num_pages_4k=%x", e_mr, iova_start, size_maxmr, + num_pages_mr, num_pages_4k); + goto ehca_reg_internal_maxmr_exit1; + } + + /* successful registration of all pages */ + e_mr->ib.ib_mr.device = e_pd->ib_pd.device; + e_mr->ib.ib_mr.pd = &e_pd->ib_pd; + e_mr->ib.ib_mr.uobject = NULL; + atomic_inc(&(e_pd->ib_pd.usecnt)); + atomic_set(&(e_mr->ib.ib_mr.usecnt), 0); + *e_maxmr = e_mr; + return 0; + +ehca_reg_internal_maxmr_exit1: + ehca_mr_delete(e_mr); +ehca_reg_internal_maxmr_exit0: + if (ret) + ehca_err(&shca->ib_device, "ret=%x shca=%p e_pd=%p e_maxmr=%p", + ret, shca, e_pd, e_maxmr); + return ret; +} /* end ehca_reg_internal_maxmr() */ + +/*----------------------------------------------------------------------*/ + +int ehca_reg_maxmr(struct ehca_shca *shca, + struct ehca_mr *e_newmr, + u64 *iova_start, + int acl, + struct ehca_pd *e_pd, + u32 *lkey, + u32 *rkey) +{ + u64 h_ret; + struct ehca_mr *e_origmr = shca->maxmr; + u32 hipz_acl; + struct ehca_mr_hipzout_parms hipzout = {{0},0,0,0,0,0}; + + ehca_mrmw_map_acl(acl, &hipz_acl); + ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl); + + h_ret = hipz_h_register_smr(shca->ipz_hca_handle, e_newmr, e_origmr, + (u64)iova_start, hipz_acl, e_pd->fw_pd, + &hipzout); + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "hipz_reg_smr failed, h_ret=%lx " + "e_origmr=%p hca_hndl=%lx mr_hndl=%lx lkey=%x", + h_ret, e_origmr, shca->ipz_hca_handle.handle, + e_origmr->ipz_mr_handle.handle, + e_origmr->ib.ib_mr.lkey); + return ehca_mrmw_map_hrc_reg_smr(h_ret); + } + /* successful registration */ + e_newmr->num_pages = e_origmr->num_pages; + e_newmr->num_4k = e_origmr->num_4k; + e_newmr->start = iova_start; + e_newmr->size = e_origmr->size; + e_newmr->acl = acl; + e_newmr->ipz_mr_handle = hipzout.handle; + *lkey = hipzout.lkey; + *rkey = hipzout.rkey; + return 0; +} /* end ehca_reg_maxmr() */ + +/*----------------------------------------------------------------------*/ + +int ehca_dereg_internal_maxmr(struct ehca_shca *shca) +{ + int ret; + struct ehca_mr *e_maxmr; + struct ib_pd *ib_pd; + + if (!shca->maxmr) { + ehca_err(&shca->ib_device, "bad call, shca=%p", shca); + ret = -EINVAL; + goto ehca_dereg_internal_maxmr_exit0; + } + + e_maxmr = shca->maxmr; + ib_pd = e_maxmr->ib.ib_mr.pd; + shca->maxmr = NULL; /* remove internal max-MR indication from SHCA */ + + ret = ehca_dereg_mr(&e_maxmr->ib.ib_mr); + if (ret) { + ehca_err(&shca->ib_device, "dereg internal max-MR failed, " + "ret=%x e_maxmr=%p shca=%p lkey=%x", + ret, e_maxmr, shca, e_maxmr->ib.ib_mr.lkey); + shca->maxmr = e_maxmr; + goto ehca_dereg_internal_maxmr_exit0; + } + + atomic_dec(&ib_pd->usecnt); + +ehca_dereg_internal_maxmr_exit0: + if (ret) + ehca_err(&shca->ib_device, "ret=%x shca=%p shca->maxmr=%p", + ret, shca, shca->maxmr); + return ret; +} /* end ehca_dereg_internal_maxmr() */ + +/*----------------------------------------------------------------------*/ + +/* + * check physical buffer array of MR verbs for validness and + * calculates MR size + */ +int ehca_mr_chk_buf_and_calc_size(struct ib_phys_buf *phys_buf_array, + int num_phys_buf, + u64 *iova_start, + u64 *size) +{ + struct ib_phys_buf *pbuf = phys_buf_array; + u64 size_count = 0; + u32 i; + + if (num_phys_buf == 0) { + ehca_gen_err("bad phys buf array len, num_phys_buf=0"); + return -EINVAL; + } + /* check first buffer */ + if (((u64)iova_start & ~PAGE_MASK) != (pbuf->addr & ~PAGE_MASK)) { + ehca_gen_err("iova_start/addr mismatch, iova_start=%p " + "pbuf->addr=%lx pbuf->size=%lx", + iova_start, pbuf->addr, pbuf->size); + return -EINVAL; + } + if (((pbuf->addr + pbuf->size) % PAGE_SIZE) && + (num_phys_buf > 1)) { + ehca_gen_err("addr/size mismatch in 1st buf, pbuf->addr=%lx " + "pbuf->size=%lx", pbuf->addr, pbuf->size); + return -EINVAL; + } + + for (i = 0; i < num_phys_buf; i++) { + if ((i > 0) && (pbuf->addr % PAGE_SIZE)) { + ehca_gen_err("bad address, i=%x pbuf->addr=%lx " + "pbuf->size=%lx", + i, pbuf->addr, pbuf->size); + return -EINVAL; + } + if (((i > 0) && /* not 1st */ + (i < (num_phys_buf - 1)) && /* not last */ + (pbuf->size % PAGE_SIZE)) || (pbuf->size == 0)) { + ehca_gen_err("bad size, i=%x pbuf->size=%lx", + i, pbuf->size); + return -EINVAL; + } + size_count += pbuf->size; + pbuf++; + } + + *size = size_count; + return 0; +} /* end ehca_mr_chk_buf_and_calc_size() */ + +/*----------------------------------------------------------------------*/ + +/* check page list of map FMR verb for validness */ +int ehca_fmr_check_page_list(struct ehca_mr *e_fmr, + u64 *page_list, + int list_len) +{ + u32 i; + u64 *page; + + if ((list_len == 0) || (list_len > e_fmr->fmr_max_pages)) { + ehca_gen_err("bad list_len, list_len=%x " + "e_fmr->fmr_max_pages=%x fmr=%p", + list_len, e_fmr->fmr_max_pages, e_fmr); + return -EINVAL; + } + + /* each page must be aligned */ + page = page_list; + for (i = 0; i < list_len; i++) { + if (*page % e_fmr->fmr_page_size) { + ehca_gen_err("bad page, i=%x *page=%lx page=%p fmr=%p " + "fmr_page_size=%x", i, *page, page, e_fmr, + e_fmr->fmr_page_size); + return -EINVAL; + } + page++; + } + + return 0; +} /* end ehca_fmr_check_page_list() */ + +/*----------------------------------------------------------------------*/ + +/* setup page buffer from page info */ +int ehca_set_pagebuf(struct ehca_mr *e_mr, + struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage) +{ + int ret = 0; + struct ib_umem_chunk *prev_chunk; + struct ib_umem_chunk *chunk; + struct ib_phys_buf *pbuf; + u64 *fmrlist; + u64 num4k, pgaddr, offs4k; + u32 i = 0; + u32 j = 0; + + if (pginfo->type == EHCA_MR_PGI_PHYS) { + /* loop over desired phys_buf_array entries */ + while (i < number) { + pbuf = pginfo->phys_buf_array + pginfo->next_buf; + num4k = ((pbuf->addr % EHCA_PAGESIZE) + pbuf->size + + EHCA_PAGESIZE - 1) / EHCA_PAGESIZE; + offs4k = (pbuf->addr & ~PAGE_MASK) / EHCA_PAGESIZE; + while (pginfo->next_4k < offs4k + num4k) { + /* sanity check */ + if ((pginfo->page_cnt >= pginfo->num_pages) || + (pginfo->page_4k_cnt >= pginfo->num_4k)) { + ehca_gen_err("page_cnt >= num_pages, " + "page_cnt=%lx " + "num_pages=%lx " + "page_4k_cnt=%lx " + "num_4k=%lx i=%x", + pginfo->page_cnt, + pginfo->num_pages, + pginfo->page_4k_cnt, + pginfo->num_4k, i); + ret = -EFAULT; + goto ehca_set_pagebuf_exit0; + } + *kpage = phys_to_abs( + (pbuf->addr & EHCA_PAGEMASK) + + (pginfo->next_4k * EHCA_PAGESIZE)); + if ( !(*kpage) && pbuf->addr ) { + ehca_gen_err("pbuf->addr=%lx " + "pbuf->size=%lx " + "next_4k=%lx", pbuf->addr, + pbuf->size, + pginfo->next_4k); + ret = -EFAULT; + goto ehca_set_pagebuf_exit0; + } + (pginfo->page_4k_cnt)++; + (pginfo->next_4k)++; + if (pginfo->next_4k % + (PAGE_SIZE / EHCA_PAGESIZE) == 0) + (pginfo->page_cnt)++; + kpage++; + i++; + if (i >= number) break; + } + if (pginfo->next_4k >= offs4k + num4k) { + (pginfo->next_buf)++; + pginfo->next_4k = 0; + } + } + } else if (pginfo->type == EHCA_MR_PGI_USER) { + /* loop over desired chunk entries */ + chunk = pginfo->next_chunk; + prev_chunk = pginfo->next_chunk; + list_for_each_entry_continue(chunk, + (&(pginfo->region->chunk_list)), + list) { + for (i = pginfo->next_nmap; i < chunk->nmap; ) { + pgaddr = ( page_to_pfn(chunk->page_list[i].page) + << PAGE_SHIFT ); + *kpage = phys_to_abs(pgaddr + + (pginfo->next_4k * + EHCA_PAGESIZE)); + if ( !(*kpage) ) { + ehca_gen_err("pgaddr=%lx " + "chunk->page_list[i]=%lx " + "i=%x next_4k=%lx mr=%p", + pgaddr, + (u64)sg_dma_address( + &chunk-> + page_list[i]), + i, pginfo->next_4k, e_mr); + ret = -EFAULT; + goto ehca_set_pagebuf_exit0; + } + (pginfo->page_4k_cnt)++; + (pginfo->next_4k)++; + kpage++; + if (pginfo->next_4k % + (PAGE_SIZE / EHCA_PAGESIZE) == 0) { + (pginfo->page_cnt)++; + (pginfo->next_nmap)++; + pginfo->next_4k = 0; + i++; + } + j++; + if (j >= number) break; + } + if ((pginfo->next_nmap >= chunk->nmap) && + (j >= number)) { + pginfo->next_nmap = 0; + prev_chunk = chunk; + break; + } else if (pginfo->next_nmap >= chunk->nmap) { + pginfo->next_nmap = 0; + prev_chunk = chunk; + } else if (j >= number) + break; + else + prev_chunk = chunk; + } + pginfo->next_chunk = + list_prepare_entry(prev_chunk, + (&(pginfo->region->chunk_list)), + list); + } else if (pginfo->type == EHCA_MR_PGI_FMR) { + /* loop over desired page_list entries */ + fmrlist = pginfo->page_list + pginfo->next_listelem; + for (i = 0; i < number; i++) { + *kpage = phys_to_abs((*fmrlist & EHCA_PAGEMASK) + + pginfo->next_4k * EHCA_PAGESIZE); + if ( !(*kpage) ) { + ehca_gen_err("*fmrlist=%lx fmrlist=%p " + "next_listelem=%lx next_4k=%lx", + *fmrlist, fmrlist, + pginfo->next_listelem, + pginfo->next_4k); + ret = -EFAULT; + goto ehca_set_pagebuf_exit0; + } + (pginfo->page_4k_cnt)++; + (pginfo->next_4k)++; + kpage++; + if (pginfo->next_4k % + (e_mr->fmr_page_size / EHCA_PAGESIZE) == 0) { + (pginfo->page_cnt)++; + (pginfo->next_listelem)++; + fmrlist++; + pginfo->next_4k = 0; + } + } + } else { + ehca_gen_err("bad pginfo->type=%x", pginfo->type); + ret = -EFAULT; + goto ehca_set_pagebuf_exit0; + } + +ehca_set_pagebuf_exit0: + if (ret) + ehca_gen_err("ret=%x e_mr=%p pginfo=%p type=%x num_pages=%lx " + "num_4k=%lx next_buf=%lx next_4k=%lx number=%x " + "kpage=%p page_cnt=%lx page_4k_cnt=%lx i=%x " + "next_listelem=%lx region=%p next_chunk=%p " + "next_nmap=%lx", ret, e_mr, pginfo, pginfo->type, + pginfo->num_pages, pginfo->num_4k, + pginfo->next_buf, pginfo->next_4k, number, kpage, + pginfo->page_cnt, pginfo->page_4k_cnt, i, + pginfo->next_listelem, pginfo->region, + pginfo->next_chunk, pginfo->next_nmap); + return ret; +} /* end ehca_set_pagebuf() */ + +/*----------------------------------------------------------------------*/ + +/* setup 1 page from page info page buffer */ +int ehca_set_pagebuf_1(struct ehca_mr *e_mr, + struct ehca_mr_pginfo *pginfo, + u64 *rpage) +{ + int ret = 0; + struct ib_phys_buf *tmp_pbuf; + u64 *fmrlist; + struct ib_umem_chunk *chunk; + struct ib_umem_chunk *prev_chunk; + u64 pgaddr, num4k, offs4k; + + if (pginfo->type == EHCA_MR_PGI_PHYS) { + /* sanity check */ + if ((pginfo->page_cnt >= pginfo->num_pages) || + (pginfo->page_4k_cnt >= pginfo->num_4k)) { + ehca_gen_err("page_cnt >= num_pages, page_cnt=%lx " + "num_pages=%lx page_4k_cnt=%lx num_4k=%lx", + pginfo->page_cnt, pginfo->num_pages, + pginfo->page_4k_cnt, pginfo->num_4k); + ret = -EFAULT; + goto ehca_set_pagebuf_1_exit0; + } + tmp_pbuf = pginfo->phys_buf_array + pginfo->next_buf; + num4k = ((tmp_pbuf->addr % EHCA_PAGESIZE) + tmp_pbuf->size + + EHCA_PAGESIZE - 1) / EHCA_PAGESIZE; + offs4k = (tmp_pbuf->addr & ~PAGE_MASK) / EHCA_PAGESIZE; + *rpage = phys_to_abs((tmp_pbuf->addr & EHCA_PAGEMASK) + + (pginfo->next_4k * EHCA_PAGESIZE)); + if ( !(*rpage) && tmp_pbuf->addr ) { + ehca_gen_err("tmp_pbuf->addr=%lx" + " tmp_pbuf->size=%lx next_4k=%lx", + tmp_pbuf->addr, tmp_pbuf->size, + pginfo->next_4k); + ret = -EFAULT; + goto ehca_set_pagebuf_1_exit0; + } + (pginfo->page_4k_cnt)++; + (pginfo->next_4k)++; + if (pginfo->next_4k % (PAGE_SIZE / EHCA_PAGESIZE) == 0) + (pginfo->page_cnt)++; + if (pginfo->next_4k >= offs4k + num4k) { + (pginfo->next_buf)++; + pginfo->next_4k = 0; + } + } else if (pginfo->type == EHCA_MR_PGI_USER) { + chunk = pginfo->next_chunk; + prev_chunk = pginfo->next_chunk; + list_for_each_entry_continue(chunk, + (&(pginfo->region->chunk_list)), + list) { + pgaddr = ( page_to_pfn(chunk->page_list[ + pginfo->next_nmap].page) + << PAGE_SHIFT); + *rpage = phys_to_abs(pgaddr + + (pginfo->next_4k * EHCA_PAGESIZE)); + if ( !(*rpage) ) { + ehca_gen_err("pgaddr=%lx chunk->page_list[]=%lx" + " next_nmap=%lx next_4k=%lx mr=%p", + pgaddr, (u64)sg_dma_address( + &chunk->page_list[ + pginfo-> + next_nmap]), + pginfo->next_nmap, pginfo->next_4k, + e_mr); + ret = -EFAULT; + goto ehca_set_pagebuf_1_exit0; + } + (pginfo->page_4k_cnt)++; + (pginfo->next_4k)++; + if (pginfo->next_4k % + (PAGE_SIZE / EHCA_PAGESIZE) == 0) { + (pginfo->page_cnt)++; + (pginfo->next_nmap)++; + pginfo->next_4k = 0; + } + if (pginfo->next_nmap >= chunk->nmap) { + pginfo->next_nmap = 0; + prev_chunk = chunk; + } + break; + } + pginfo->next_chunk = + list_prepare_entry(prev_chunk, + (&(pginfo->region->chunk_list)), + list); + } else if (pginfo->type == EHCA_MR_PGI_FMR) { + fmrlist = pginfo->page_list + pginfo->next_listelem; + *rpage = phys_to_abs((*fmrlist & EHCA_PAGEMASK) + + pginfo->next_4k * EHCA_PAGESIZE); + if ( !(*rpage) ) { + ehca_gen_err("*fmrlist=%lx fmrlist=%p " + "next_listelem=%lx next_4k=%lx", + *fmrlist, fmrlist, pginfo->next_listelem, + pginfo->next_4k); + ret = -EFAULT; + goto ehca_set_pagebuf_1_exit0; + } + (pginfo->page_4k_cnt)++; + (pginfo->next_4k)++; + if (pginfo->next_4k % + (e_mr->fmr_page_size / EHCA_PAGESIZE) == 0) { + (pginfo->page_cnt)++; + (pginfo->next_listelem)++; + pginfo->next_4k = 0; + } + } else { + ehca_gen_err("bad pginfo->type=%x", pginfo->type); + ret = -EFAULT; + goto ehca_set_pagebuf_1_exit0; + } + +ehca_set_pagebuf_1_exit0: + if (ret) + ehca_gen_err("ret=%x e_mr=%p pginfo=%p type=%x num_pages=%lx " + "num_4k=%lx next_buf=%lx next_4k=%lx rpage=%p " + "page_cnt=%lx page_4k_cnt=%lx next_listelem=%lx " + "region=%p next_chunk=%p next_nmap=%lx", ret, e_mr, + pginfo, pginfo->type, pginfo->num_pages, + pginfo->num_4k, pginfo->next_buf, pginfo->next_4k, + rpage, pginfo->page_cnt, pginfo->page_4k_cnt, + pginfo->next_listelem, pginfo->region, + pginfo->next_chunk, pginfo->next_nmap); + return ret; +} /* end ehca_set_pagebuf_1() */ + +/*----------------------------------------------------------------------*/ + +/* + * check MR if it is a max-MR, i.e. uses whole memory + * in case it's a max-MR 1 is returned, else 0 + */ +int ehca_mr_is_maxmr(u64 size, + u64 *iova_start) +{ + /* a MR is treated as max-MR only if it fits following: */ + if ((size == ((u64)high_memory - PAGE_OFFSET)) && + (iova_start == (void*)KERNELBASE)) { + ehca_gen_dbg("this is a max-MR"); + return 1; + } else + return 0; +} /* end ehca_mr_is_maxmr() */ + +/*----------------------------------------------------------------------*/ + +/* map access control for MR/MW. This routine is used for MR and MW. */ +void ehca_mrmw_map_acl(int ib_acl, + u32 *hipz_acl) +{ + *hipz_acl = 0; + if (ib_acl & IB_ACCESS_REMOTE_READ) + *hipz_acl |= HIPZ_ACCESSCTRL_R_READ; + if (ib_acl & IB_ACCESS_REMOTE_WRITE) + *hipz_acl |= HIPZ_ACCESSCTRL_R_WRITE; + if (ib_acl & IB_ACCESS_REMOTE_ATOMIC) + *hipz_acl |= HIPZ_ACCESSCTRL_R_ATOMIC; + if (ib_acl & IB_ACCESS_LOCAL_WRITE) + *hipz_acl |= HIPZ_ACCESSCTRL_L_WRITE; + if (ib_acl & IB_ACCESS_MW_BIND) + *hipz_acl |= HIPZ_ACCESSCTRL_MW_BIND; +} /* end ehca_mrmw_map_acl() */ + +/*----------------------------------------------------------------------*/ + +/* sets page size in hipz access control for MR/MW. */ +void ehca_mrmw_set_pgsize_hipz_acl(u32 *hipz_acl) /*INOUT*/ +{ + return; /* HCA supports only 4k */ +} /* end ehca_mrmw_set_pgsize_hipz_acl() */ + +/*----------------------------------------------------------------------*/ + +/* + * reverse map access control for MR/MW. + * This routine is used for MR and MW. + */ +void ehca_mrmw_reverse_map_acl(const u32 *hipz_acl, + int *ib_acl) /*OUT*/ +{ + *ib_acl = 0; + if (*hipz_acl & HIPZ_ACCESSCTRL_R_READ) + *ib_acl |= IB_ACCESS_REMOTE_READ; + if (*hipz_acl & HIPZ_ACCESSCTRL_R_WRITE) + *ib_acl |= IB_ACCESS_REMOTE_WRITE; + if (*hipz_acl & HIPZ_ACCESSCTRL_R_ATOMIC) + *ib_acl |= IB_ACCESS_REMOTE_ATOMIC; + if (*hipz_acl & HIPZ_ACCESSCTRL_L_WRITE) + *ib_acl |= IB_ACCESS_LOCAL_WRITE; + if (*hipz_acl & HIPZ_ACCESSCTRL_MW_BIND) + *ib_acl |= IB_ACCESS_MW_BIND; +} /* end ehca_mrmw_reverse_map_acl() */ + + +/*----------------------------------------------------------------------*/ + +/* + * map HIPZ rc to IB retcodes for MR/MW allocations + * Used for hipz_mr_reg_alloc and hipz_mw_alloc. + */ +int ehca_mrmw_map_hrc_alloc(const u64 hipz_rc) +{ + switch (hipz_rc) { + case H_SUCCESS: /* successful completion */ + return 0; + case H_ADAPTER_PARM: /* invalid adapter handle */ + case H_RT_PARM: /* invalid resource type */ + case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */ + case H_MLENGTH_PARM: /* invalid memory length */ + case H_MEM_ACCESS_PARM: /* invalid access controls */ + case H_CONSTRAINED: /* resource constraint */ + return -EINVAL; + case H_BUSY: /* long busy */ + return -EBUSY; + default: + return -EINVAL; + } +} /* end ehca_mrmw_map_hrc_alloc() */ + +/*----------------------------------------------------------------------*/ + +/* + * map HIPZ rc to IB retcodes for MR register rpage + * Used for hipz_h_register_rpage_mr at registering last page + */ +int ehca_mrmw_map_hrc_rrpg_last(const u64 hipz_rc) +{ + switch (hipz_rc) { + case H_SUCCESS: /* registration complete */ + return 0; + case H_PAGE_REGISTERED: /* page registered */ + case H_ADAPTER_PARM: /* invalid adapter handle */ + case H_RH_PARM: /* invalid resource handle */ +/* case H_QT_PARM: invalid queue type */ + case H_PARAMETER: /* + * invalid logical address, + * or count zero or greater 512 + */ + case H_TABLE_FULL: /* page table full */ + case H_HARDWARE: /* HCA not operational */ + return -EINVAL; + case H_BUSY: /* long busy */ + return -EBUSY; + default: + return -EINVAL; + } +} /* end ehca_mrmw_map_hrc_rrpg_last() */ + +/*----------------------------------------------------------------------*/ + +/* + * map HIPZ rc to IB retcodes for MR register rpage + * Used for hipz_h_register_rpage_mr at registering one page, but not last page + */ +int ehca_mrmw_map_hrc_rrpg_notlast(const u64 hipz_rc) +{ + switch (hipz_rc) { + case H_PAGE_REGISTERED: /* page registered */ + return 0; + case H_SUCCESS: /* registration complete */ + case H_ADAPTER_PARM: /* invalid adapter handle */ + case H_RH_PARM: /* invalid resource handle */ +/* case H_QT_PARM: invalid queue type */ + case H_PARAMETER: /* + * invalid logical address, + * or count zero or greater 512 + */ + case H_TABLE_FULL: /* page table full */ + case H_HARDWARE: /* HCA not operational */ + return -EINVAL; + case H_BUSY: /* long busy */ + return -EBUSY; + default: + return -EINVAL; + } +} /* end ehca_mrmw_map_hrc_rrpg_notlast() */ + +/*----------------------------------------------------------------------*/ + +/* map HIPZ rc to IB retcodes for MR query. Used for hipz_mr_query. */ +int ehca_mrmw_map_hrc_query_mr(const u64 hipz_rc) +{ + switch (hipz_rc) { + case H_SUCCESS: /* successful completion */ + return 0; + case H_ADAPTER_PARM: /* invalid adapter handle */ + case H_RH_PARM: /* invalid resource handle */ + return -EINVAL; + case H_BUSY: /* long busy */ + return -EBUSY; + default: + return -EINVAL; + } +} /* end ehca_mrmw_map_hrc_query_mr() */ + +/*----------------------------------------------------------------------*/ +/*----------------------------------------------------------------------*/ + +/* + * map HIPZ rc to IB retcodes for freeing MR resource + * Used for hipz_h_free_resource_mr + */ +int ehca_mrmw_map_hrc_free_mr(const u64 hipz_rc) +{ + switch (hipz_rc) { + case H_SUCCESS: /* resource freed */ + return 0; + case H_ADAPTER_PARM: /* invalid adapter handle */ + case H_RH_PARM: /* invalid resource handle */ + case H_R_STATE: /* invalid resource state */ + case H_HARDWARE: /* HCA not operational */ + return -EINVAL; + case H_RESOURCE: /* Resource in use */ + case H_BUSY: /* long busy */ + return -EBUSY; + default: + return -EINVAL; + } +} /* end ehca_mrmw_map_hrc_free_mr() */ + +/*----------------------------------------------------------------------*/ + +/* + * map HIPZ rc to IB retcodes for freeing MW resource + * Used for hipz_h_free_resource_mw + */ +int ehca_mrmw_map_hrc_free_mw(const u64 hipz_rc) +{ + switch (hipz_rc) { + case H_SUCCESS: /* resource freed */ + return 0; + case H_ADAPTER_PARM: /* invalid adapter handle */ + case H_RH_PARM: /* invalid resource handle */ + case H_R_STATE: /* invalid resource state */ + case H_HARDWARE: /* HCA not operational */ + return -EINVAL; + case H_RESOURCE: /* Resource in use */ + case H_BUSY: /* long busy */ + return -EBUSY; + default: + return -EINVAL; + } +} /* end ehca_mrmw_map_hrc_free_mw() */ + +/*----------------------------------------------------------------------*/ + +/* + * map HIPZ rc to IB retcodes for SMR registrations + * Used for hipz_h_register_smr. + */ +int ehca_mrmw_map_hrc_reg_smr(const u64 hipz_rc) +{ + switch (hipz_rc) { + case H_SUCCESS: /* successful completion */ + return 0; + case H_ADAPTER_PARM: /* invalid adapter handle */ + case H_RH_PARM: /* invalid resource handle */ + case H_MEM_PARM: /* invalid MR virtual address */ + case H_MEM_ACCESS_PARM: /* invalid access controls */ + case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */ + return -EINVAL; + case H_BUSY: /* long busy */ + return -EBUSY; + default: + return -EINVAL; + } +} /* end ehca_mrmw_map_hrc_reg_smr() */ + +/*----------------------------------------------------------------------*/ + +/* + * MR destructor and constructor + * used in Reregister MR verb, sets all fields in ehca_mr_t to 0, + * except struct ib_mr and spinlock + */ +void ehca_mr_deletenew(struct ehca_mr *mr) +{ + mr->flags = 0; + mr->num_pages = 0; + mr->num_4k = 0; + mr->acl = 0; + mr->start = NULL; + mr->fmr_page_size = 0; + mr->fmr_max_pages = 0; + mr->fmr_max_maps = 0; + mr->fmr_map_cnt = 0; + memset(&mr->ipz_mr_handle, 0, sizeof(mr->ipz_mr_handle)); + memset(&mr->galpas, 0, sizeof(mr->galpas)); + mr->nr_of_pages = 0; + mr->pagearray = NULL; +} /* end ehca_mr_deletenew() */ + +int ehca_init_mrmw_cache(void) +{ + mr_cache = kmem_cache_create("ehca_cache_mr", + sizeof(struct ehca_mr), 0, + SLAB_HWCACHE_ALIGN, + NULL, NULL); + if (!mr_cache) + return -ENOMEM; + mw_cache = kmem_cache_create("ehca_cache_mw", + sizeof(struct ehca_mw), 0, + SLAB_HWCACHE_ALIGN, + NULL, NULL); + if (!mw_cache) { + kmem_cache_destroy(mr_cache); + mr_cache = NULL; + return -ENOMEM; + } + return 0; +} + +void ehca_cleanup_mrmw_cache(void) +{ + if (mr_cache) + kmem_cache_destroy(mr_cache); + if (mw_cache) + kmem_cache_destroy(mw_cache); +} diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.h b/drivers/infiniband/hw/ehca/ehca_mrmw.h new file mode 100644 index 00000000000..d936e40a574 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_mrmw.h @@ -0,0 +1,140 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * MR/MW declarations and inline functions + * + * Authors: Dietmar Decker + * Christoph Raisch + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _EHCA_MRMW_H_ +#define _EHCA_MRMW_H_ + +int ehca_reg_mr(struct ehca_shca *shca, + struct ehca_mr *e_mr, + u64 *iova_start, + u64 size, + int acl, + struct ehca_pd *e_pd, + struct ehca_mr_pginfo *pginfo, + u32 *lkey, + u32 *rkey); + +int ehca_reg_mr_rpages(struct ehca_shca *shca, + struct ehca_mr *e_mr, + struct ehca_mr_pginfo *pginfo); + +int ehca_rereg_mr(struct ehca_shca *shca, + struct ehca_mr *e_mr, + u64 *iova_start, + u64 size, + int mr_access_flags, + struct ehca_pd *e_pd, + struct ehca_mr_pginfo *pginfo, + u32 *lkey, + u32 *rkey); + +int ehca_unmap_one_fmr(struct ehca_shca *shca, + struct ehca_mr *e_fmr); + +int ehca_reg_smr(struct ehca_shca *shca, + struct ehca_mr *e_origmr, + struct ehca_mr *e_newmr, + u64 *iova_start, + int acl, + struct ehca_pd *e_pd, + u32 *lkey, + u32 *rkey); + +int ehca_reg_internal_maxmr(struct ehca_shca *shca, + struct ehca_pd *e_pd, + struct ehca_mr **maxmr); + +int ehca_reg_maxmr(struct ehca_shca *shca, + struct ehca_mr *e_newmr, + u64 *iova_start, + int acl, + struct ehca_pd *e_pd, + u32 *lkey, + u32 *rkey); + +int ehca_dereg_internal_maxmr(struct ehca_shca *shca); + +int ehca_mr_chk_buf_and_calc_size(struct ib_phys_buf *phys_buf_array, + int num_phys_buf, + u64 *iova_start, + u64 *size); + +int ehca_fmr_check_page_list(struct ehca_mr *e_fmr, + u64 *page_list, + int list_len); + +int ehca_set_pagebuf(struct ehca_mr *e_mr, + struct ehca_mr_pginfo *pginfo, + u32 number, + u64 *kpage); + +int ehca_set_pagebuf_1(struct ehca_mr *e_mr, + struct ehca_mr_pginfo *pginfo, + u64 *rpage); + +int ehca_mr_is_maxmr(u64 size, + u64 *iova_start); + +void ehca_mrmw_map_acl(int ib_acl, + u32 *hipz_acl); + +void ehca_mrmw_set_pgsize_hipz_acl(u32 *hipz_acl); + +void ehca_mrmw_reverse_map_acl(const u32 *hipz_acl, + int *ib_acl); + +int ehca_mrmw_map_hrc_alloc(const u64 hipz_rc); + +int ehca_mrmw_map_hrc_rrpg_last(const u64 hipz_rc); + +int ehca_mrmw_map_hrc_rrpg_notlast(const u64 hipz_rc); + +int ehca_mrmw_map_hrc_query_mr(const u64 hipz_rc); + +int ehca_mrmw_map_hrc_free_mr(const u64 hipz_rc); + +int ehca_mrmw_map_hrc_free_mw(const u64 hipz_rc); + +int ehca_mrmw_map_hrc_reg_smr(const u64 hipz_rc); + +void ehca_mr_deletenew(struct ehca_mr *mr); + +#endif /*_EHCA_MRMW_H_*/ diff --git a/drivers/infiniband/hw/ehca/ehca_pd.c b/drivers/infiniband/hw/ehca/ehca_pd.c new file mode 100644 index 00000000000..2c3cdc6f7b3 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_pd.c @@ -0,0 +1,114 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * PD functions + * + * Authors: Christoph Raisch + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include + +#include "ehca_tools.h" +#include "ehca_iverbs.h" + +static struct kmem_cache *pd_cache; + +struct ib_pd *ehca_alloc_pd(struct ib_device *device, + struct ib_ucontext *context, struct ib_udata *udata) +{ + struct ehca_pd *pd; + + pd = kmem_cache_alloc(pd_cache, SLAB_KERNEL); + if (!pd) { + ehca_err(device, "device=%p context=%p out of memory", + device, context); + return ERR_PTR(-ENOMEM); + } + + memset(pd, 0, sizeof(struct ehca_pd)); + pd->ownpid = current->tgid; + + /* + * Kernel PD: when device = -1, 0 + * User PD: when context != -1 + */ + if (!context) { + /* + * Kernel PDs after init reuses always + * the one created in ehca_shca_reopen() + */ + struct ehca_shca *shca = container_of(device, struct ehca_shca, + ib_device); + pd->fw_pd.value = shca->pd->fw_pd.value; + } else + pd->fw_pd.value = (u64)pd; + + return &pd->ib_pd; +} + +int ehca_dealloc_pd(struct ib_pd *pd) +{ + u32 cur_pid = current->tgid; + struct ehca_pd *my_pd = container_of(pd, struct ehca_pd, ib_pd); + + if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && + my_pd->ownpid != cur_pid) { + ehca_err(pd->device, "Invalid caller pid=%x ownpid=%x", + cur_pid, my_pd->ownpid); + return -EINVAL; + } + + kmem_cache_free(pd_cache, + container_of(pd, struct ehca_pd, ib_pd)); + + return 0; +} + +int ehca_init_pd_cache(void) +{ + pd_cache = kmem_cache_create("ehca_cache_pd", + sizeof(struct ehca_pd), 0, + SLAB_HWCACHE_ALIGN, + NULL, NULL); + if (!pd_cache) + return -ENOMEM; + return 0; +} + +void ehca_cleanup_pd_cache(void) +{ + if (pd_cache) + kmem_cache_destroy(pd_cache); +} diff --git a/drivers/infiniband/hw/ehca/ehca_qes.h b/drivers/infiniband/hw/ehca/ehca_qes.h new file mode 100644 index 00000000000..8707d297ce4 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_qes.h @@ -0,0 +1,259 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * Hardware request structures + * + * Authors: Waleri Fomin + * Reinhard Ernst + * Christoph Raisch + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + + +#ifndef _EHCA_QES_H_ +#define _EHCA_QES_H_ + +#include "ehca_tools.h" + +/* virtual scatter gather entry to specify remote adresses with length */ +struct ehca_vsgentry { + u64 vaddr; + u32 lkey; + u32 length; +}; + +#define GRH_FLAG_MASK EHCA_BMASK_IBM(7,7) +#define GRH_IPVERSION_MASK EHCA_BMASK_IBM(0,3) +#define GRH_TCLASS_MASK EHCA_BMASK_IBM(4,12) +#define GRH_FLOWLABEL_MASK EHCA_BMASK_IBM(13,31) +#define GRH_PAYLEN_MASK EHCA_BMASK_IBM(32,47) +#define GRH_NEXTHEADER_MASK EHCA_BMASK_IBM(48,55) +#define GRH_HOPLIMIT_MASK EHCA_BMASK_IBM(56,63) + +/* + * Unreliable Datagram Address Vector Format + * see IBTA Vol1 chapter 8.3 Global Routing Header + */ +struct ehca_ud_av { + u8 sl; + u8 lnh; + u16 dlid; + u8 reserved1; + u8 reserved2; + u8 reserved3; + u8 slid_path_bits; + u8 reserved4; + u8 ipd; + u8 reserved5; + u8 pmtu; + u32 reserved6; + u64 reserved7; + union { + struct { + u64 word_0; /* always set to 6 */ + /*should be 0x1B for IB transport */ + u64 word_1; + u64 word_2; + u64 word_3; + u64 word_4; + } grh; + struct { + u32 wd_0; + u32 wd_1; + /* DWord_1 --> SGID */ + + u32 sgid_wd3; + u32 sgid_wd2; + + u32 sgid_wd1; + u32 sgid_wd0; + /* DWord_3 --> DGID */ + + u32 dgid_wd3; + u32 dgid_wd2; + + u32 dgid_wd1; + u32 dgid_wd0; + } grh_l; + }; +}; + +/* maximum number of sg entries allowed in a WQE */ +#define MAX_WQE_SG_ENTRIES 252 + +#define WQE_OPTYPE_SEND 0x80 +#define WQE_OPTYPE_RDMAREAD 0x40 +#define WQE_OPTYPE_RDMAWRITE 0x20 +#define WQE_OPTYPE_CMPSWAP 0x10 +#define WQE_OPTYPE_FETCHADD 0x08 +#define WQE_OPTYPE_BIND 0x04 + +#define WQE_WRFLAG_REQ_SIGNAL_COM 0x80 +#define WQE_WRFLAG_FENCE 0x40 +#define WQE_WRFLAG_IMM_DATA_PRESENT 0x20 +#define WQE_WRFLAG_SOLIC_EVENT 0x10 + +#define WQEF_CACHE_HINT 0x80 +#define WQEF_CACHE_HINT_RD_WR 0x40 +#define WQEF_TIMED_WQE 0x20 +#define WQEF_PURGE 0x08 +#define WQEF_HIGH_NIBBLE 0xF0 + +#define MW_BIND_ACCESSCTRL_R_WRITE 0x40 +#define MW_BIND_ACCESSCTRL_R_READ 0x20 +#define MW_BIND_ACCESSCTRL_R_ATOMIC 0x10 + +struct ehca_wqe { + u64 work_request_id; + u8 optype; + u8 wr_flag; + u16 pkeyi; + u8 wqef; + u8 nr_of_data_seg; + u16 wqe_provided_slid; + u32 destination_qp_number; + u32 resync_psn_sqp; + u32 local_ee_context_qkey; + u32 immediate_data; + union { + struct { + u64 remote_virtual_adress; + u32 rkey; + u32 reserved; + u64 atomic_1st_op_dma_len; + u64 atomic_2nd_op; + struct ehca_vsgentry sg_list[MAX_WQE_SG_ENTRIES]; + + } nud; + struct { + u64 ehca_ud_av_ptr; + u64 reserved1; + u64 reserved2; + u64 reserved3; + struct ehca_vsgentry sg_list[MAX_WQE_SG_ENTRIES]; + } ud_avp; + struct { + struct ehca_ud_av ud_av; + struct ehca_vsgentry sg_list[MAX_WQE_SG_ENTRIES - + 2]; + } ud_av; + struct { + u64 reserved0; + u64 reserved1; + u64 reserved2; + u64 reserved3; + struct ehca_vsgentry sg_list[MAX_WQE_SG_ENTRIES]; + } all_rcv; + + struct { + u64 reserved; + u32 rkey; + u32 old_rkey; + u64 reserved1; + u64 reserved2; + u64 virtual_address; + u32 reserved3; + u32 length; + u32 reserved4; + u16 reserved5; + u8 reserved6; + u8 lr_ctl; + u32 lkey; + u32 reserved7; + u64 reserved8; + u64 reserved9; + u64 reserved10; + u64 reserved11; + } bind; + struct { + u64 reserved12; + u64 reserved13; + u32 size; + u32 start; + } inline_data; + } u; + +}; + +#define WC_SEND_RECEIVE EHCA_BMASK_IBM(0,0) +#define WC_IMM_DATA EHCA_BMASK_IBM(1,1) +#define WC_GRH_PRESENT EHCA_BMASK_IBM(2,2) +#define WC_SE_BIT EHCA_BMASK_IBM(3,3) +#define WC_STATUS_ERROR_BIT 0x80000000 +#define WC_STATUS_REMOTE_ERROR_FLAGS 0x0000F800 +#define WC_STATUS_PURGE_BIT 0x10 + +struct ehca_cqe { + u64 work_request_id; + u8 optype; + u8 w_completion_flags; + u16 reserved1; + u32 nr_bytes_transferred; + u32 immediate_data; + u32 local_qp_number; + u8 freed_resource_count; + u8 service_level; + u16 wqe_count; + u32 qp_token; + u32 qkey_ee_token; + u32 remote_qp_number; + u16 dlid; + u16 rlid; + u16 reserved2; + u16 pkey_index; + u32 cqe_timestamp; + u32 wqe_timestamp; + u8 wqe_timestamp_valid; + u8 reserved3; + u8 reserved4; + u8 cqe_flags; + u32 status; +}; + +struct ehca_eqe { + u64 entry; +}; + +struct ehca_mrte { + u64 starting_va; + u64 length; /* length of memory region in bytes*/ + u32 pd; + u8 key_instance; + u8 pagesize; + u8 mr_control; + u8 local_remote_access_ctrl; + u8 reserved[0x20 - 0x18]; + u64 at_pointer[4]; +}; +#endif /*_EHCA_QES_H_*/ diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c new file mode 100644 index 00000000000..4b27bedc6c2 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_qp.c @@ -0,0 +1,1506 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * QP functions + * + * Authors: Waleri Fomin + * Hoang-Nam Nguyen + * Reinhard Ernst + * Heiko J Schick + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + + +#include + +#include "ehca_classes.h" +#include "ehca_tools.h" +#include "ehca_qes.h" +#include "ehca_iverbs.h" +#include "hcp_if.h" +#include "hipz_fns.h" + +static struct kmem_cache *qp_cache; + +/* + * attributes not supported by query qp + */ +#define QP_ATTR_QUERY_NOT_SUPPORTED (IB_QP_MAX_DEST_RD_ATOMIC | \ + IB_QP_MAX_QP_RD_ATOMIC | \ + IB_QP_ACCESS_FLAGS | \ + IB_QP_EN_SQD_ASYNC_NOTIFY) + +/* + * ehca (internal) qp state values + */ +enum ehca_qp_state { + EHCA_QPS_RESET = 1, + EHCA_QPS_INIT = 2, + EHCA_QPS_RTR = 3, + EHCA_QPS_RTS = 5, + EHCA_QPS_SQD = 6, + EHCA_QPS_SQE = 8, + EHCA_QPS_ERR = 128 +}; + +/* + * qp state transitions as defined by IB Arch Rel 1.1 page 431 + */ +enum ib_qp_statetrans { + IB_QPST_ANY2RESET, + IB_QPST_ANY2ERR, + IB_QPST_RESET2INIT, + IB_QPST_INIT2RTR, + IB_QPST_INIT2INIT, + IB_QPST_RTR2RTS, + IB_QPST_RTS2SQD, + IB_QPST_RTS2RTS, + IB_QPST_SQD2RTS, + IB_QPST_SQE2RTS, + IB_QPST_SQD2SQD, + IB_QPST_MAX /* nr of transitions, this must be last!!! */ +}; + +/* + * ib2ehca_qp_state maps IB to ehca qp_state + * returns ehca qp state corresponding to given ib qp state + */ +static inline enum ehca_qp_state ib2ehca_qp_state(enum ib_qp_state ib_qp_state) +{ + switch (ib_qp_state) { + case IB_QPS_RESET: + return EHCA_QPS_RESET; + case IB_QPS_INIT: + return EHCA_QPS_INIT; + case IB_QPS_RTR: + return EHCA_QPS_RTR; + case IB_QPS_RTS: + return EHCA_QPS_RTS; + case IB_QPS_SQD: + return EHCA_QPS_SQD; + case IB_QPS_SQE: + return EHCA_QPS_SQE; + case IB_QPS_ERR: + return EHCA_QPS_ERR; + default: + ehca_gen_err("invalid ib_qp_state=%x", ib_qp_state); + return -EINVAL; + } +} + +/* + * ehca2ib_qp_state maps ehca to IB qp_state + * returns ib qp state corresponding to given ehca qp state + */ +static inline enum ib_qp_state ehca2ib_qp_state(enum ehca_qp_state + ehca_qp_state) +{ + switch (ehca_qp_state) { + case EHCA_QPS_RESET: + return IB_QPS_RESET; + case EHCA_QPS_INIT: + return IB_QPS_INIT; + case EHCA_QPS_RTR: + return IB_QPS_RTR; + case EHCA_QPS_RTS: + return IB_QPS_RTS; + case EHCA_QPS_SQD: + return IB_QPS_SQD; + case EHCA_QPS_SQE: + return IB_QPS_SQE; + case EHCA_QPS_ERR: + return IB_QPS_ERR; + default: + ehca_gen_err("invalid ehca_qp_state=%x", ehca_qp_state); + return -EINVAL; + } +} + +/* + * ehca_qp_type used as index for req_attr and opt_attr of + * struct ehca_modqp_statetrans + */ +enum ehca_qp_type { + QPT_RC = 0, + QPT_UC = 1, + QPT_UD = 2, + QPT_SQP = 3, + QPT_MAX +}; + +/* + * ib2ehcaqptype maps Ib to ehca qp_type + * returns ehca qp type corresponding to ib qp type + */ +static inline enum ehca_qp_type ib2ehcaqptype(enum ib_qp_type ibqptype) +{ + switch (ibqptype) { + case IB_QPT_SMI: + case IB_QPT_GSI: + return QPT_SQP; + case IB_QPT_RC: + return QPT_RC; + case IB_QPT_UC: + return QPT_UC; + case IB_QPT_UD: + return QPT_UD; + default: + ehca_gen_err("Invalid ibqptype=%x", ibqptype); + return -EINVAL; + } +} + +static inline enum ib_qp_statetrans get_modqp_statetrans(int ib_fromstate, + int ib_tostate) +{ + int index = -EINVAL; + switch (ib_tostate) { + case IB_QPS_RESET: + index = IB_QPST_ANY2RESET; + break; + case IB_QPS_INIT: + switch (ib_fromstate) { + case IB_QPS_RESET: + index = IB_QPST_RESET2INIT; + break; + case IB_QPS_INIT: + index = IB_QPST_INIT2INIT; + break; + } + break; + case IB_QPS_RTR: + if (ib_fromstate == IB_QPS_INIT) + index = IB_QPST_INIT2RTR; + break; + case IB_QPS_RTS: + switch (ib_fromstate) { + case IB_QPS_RTR: + index = IB_QPST_RTR2RTS; + break; + case IB_QPS_RTS: + index = IB_QPST_RTS2RTS; + break; + case IB_QPS_SQD: + index = IB_QPST_SQD2RTS; + break; + case IB_QPS_SQE: + index = IB_QPST_SQE2RTS; + break; + } + break; + case IB_QPS_SQD: + if (ib_fromstate == IB_QPS_RTS) + index = IB_QPST_RTS2SQD; + break; + case IB_QPS_SQE: + break; + case IB_QPS_ERR: + index = IB_QPST_ANY2ERR; + break; + default: + break; + } + return index; +} + +enum ehca_service_type { + ST_RC = 0, + ST_UC = 1, + ST_RD = 2, + ST_UD = 3 +}; + +/* + * ibqptype2servicetype returns hcp service type corresponding to given + * ib qp type used by create_qp() + */ +static inline int ibqptype2servicetype(enum ib_qp_type ibqptype) +{ + switch (ibqptype) { + case IB_QPT_SMI: + case IB_QPT_GSI: + return ST_UD; + case IB_QPT_RC: + return ST_RC; + case IB_QPT_UC: + return ST_UC; + case IB_QPT_UD: + return ST_UD; + case IB_QPT_RAW_IPV6: + return -EINVAL; + case IB_QPT_RAW_ETY: + return -EINVAL; + default: + ehca_gen_err("Invalid ibqptype=%x", ibqptype); + return -EINVAL; + } +} + +/* + * init_qp_queues initializes/constructs r/squeue and registers queue pages. + */ +static inline int init_qp_queues(struct ehca_shca *shca, + struct ehca_qp *my_qp, + int nr_sq_pages, + int nr_rq_pages, + int swqe_size, + int rwqe_size, + int nr_send_sges, int nr_receive_sges) +{ + int ret, cnt, ipz_rc; + void *vpage; + u64 rpage, h_ret; + struct ib_device *ib_dev = &shca->ib_device; + struct ipz_adapter_handle ipz_hca_handle = shca->ipz_hca_handle; + + ipz_rc = ipz_queue_ctor(&my_qp->ipz_squeue, + nr_sq_pages, + EHCA_PAGESIZE, swqe_size, nr_send_sges); + if (!ipz_rc) { + ehca_err(ib_dev,"Cannot allocate page for squeue. ipz_rc=%x", + ipz_rc); + return -EBUSY; + } + + ipz_rc = ipz_queue_ctor(&my_qp->ipz_rqueue, + nr_rq_pages, + EHCA_PAGESIZE, rwqe_size, nr_receive_sges); + if (!ipz_rc) { + ehca_err(ib_dev, "Cannot allocate page for rqueue. ipz_rc=%x", + ipz_rc); + ret = -EBUSY; + goto init_qp_queues0; + } + /* register SQ pages */ + for (cnt = 0; cnt < nr_sq_pages; cnt++) { + vpage = ipz_qpageit_get_inc(&my_qp->ipz_squeue); + if (!vpage) { + ehca_err(ib_dev, "SQ ipz_qpageit_get_inc() " + "failed p_vpage= %p", vpage); + ret = -EINVAL; + goto init_qp_queues1; + } + rpage = virt_to_abs(vpage); + + h_ret = hipz_h_register_rpage_qp(ipz_hca_handle, + my_qp->ipz_qp_handle, + &my_qp->pf, 0, 0, + rpage, 1, + my_qp->galpas.kernel); + if (h_ret < H_SUCCESS) { + ehca_err(ib_dev, "SQ hipz_qp_register_rpage()" + " failed rc=%lx", h_ret); + ret = ehca2ib_return_code(h_ret); + goto init_qp_queues1; + } + } + + ipz_qeit_reset(&my_qp->ipz_squeue); + + /* register RQ pages */ + for (cnt = 0; cnt < nr_rq_pages; cnt++) { + vpage = ipz_qpageit_get_inc(&my_qp->ipz_rqueue); + if (!vpage) { + ehca_err(ib_dev, "RQ ipz_qpageit_get_inc() " + "failed p_vpage = %p", vpage); + ret = -EINVAL; + goto init_qp_queues1; + } + + rpage = virt_to_abs(vpage); + + h_ret = hipz_h_register_rpage_qp(ipz_hca_handle, + my_qp->ipz_qp_handle, + &my_qp->pf, 0, 1, + rpage, 1,my_qp->galpas.kernel); + if (h_ret < H_SUCCESS) { + ehca_err(ib_dev, "RQ hipz_qp_register_rpage() failed " + "rc=%lx", h_ret); + ret = ehca2ib_return_code(h_ret); + goto init_qp_queues1; + } + if (cnt == (nr_rq_pages - 1)) { /* last page! */ + if (h_ret != H_SUCCESS) { + ehca_err(ib_dev, "RQ hipz_qp_register_rpage() " + "h_ret= %lx ", h_ret); + ret = ehca2ib_return_code(h_ret); + goto init_qp_queues1; + } + vpage = ipz_qpageit_get_inc(&my_qp->ipz_rqueue); + if (vpage) { + ehca_err(ib_dev, "ipz_qpageit_get_inc() " + "should not succeed vpage=%p", vpage); + ret = -EINVAL; + goto init_qp_queues1; + } + } else { + if (h_ret != H_PAGE_REGISTERED) { + ehca_err(ib_dev, "RQ hipz_qp_register_rpage() " + "h_ret= %lx ", h_ret); + ret = ehca2ib_return_code(h_ret); + goto init_qp_queues1; + } + } + } + + ipz_qeit_reset(&my_qp->ipz_rqueue); + + return 0; + +init_qp_queues1: + ipz_queue_dtor(&my_qp->ipz_rqueue); +init_qp_queues0: + ipz_queue_dtor(&my_qp->ipz_squeue); + return ret; +} + +struct ib_qp *ehca_create_qp(struct ib_pd *pd, + struct ib_qp_init_attr *init_attr, + struct ib_udata *udata) +{ + static int da_rc_msg_size[]={ 128, 256, 512, 1024, 2048, 4096 }; + static int da_ud_sq_msg_size[]={ 128, 384, 896, 1920, 3968 }; + struct ehca_qp *my_qp; + struct ehca_pd *my_pd = container_of(pd, struct ehca_pd, ib_pd); + struct ehca_shca *shca = container_of(pd->device, struct ehca_shca, + ib_device); + struct ib_ucontext *context = NULL; + u64 h_ret; + int max_send_sge, max_recv_sge, ret; + + /* h_call's out parameters */ + struct ehca_alloc_qp_parms parms; + u32 swqe_size = 0, rwqe_size = 0; + u8 daqp_completion, isdaqp; + unsigned long flags; + + if (init_attr->sq_sig_type != IB_SIGNAL_REQ_WR && + init_attr->sq_sig_type != IB_SIGNAL_ALL_WR) { + ehca_err(pd->device, "init_attr->sg_sig_type=%x not allowed", + init_attr->sq_sig_type); + return ERR_PTR(-EINVAL); + } + + /* save daqp completion bits */ + daqp_completion = init_attr->qp_type & 0x60; + /* save daqp bit */ + isdaqp = (init_attr->qp_type & 0x80) ? 1 : 0; + init_attr->qp_type = init_attr->qp_type & 0x1F; + + if (init_attr->qp_type != IB_QPT_UD && + init_attr->qp_type != IB_QPT_SMI && + init_attr->qp_type != IB_QPT_GSI && + init_attr->qp_type != IB_QPT_UC && + init_attr->qp_type != IB_QPT_RC) { + ehca_err(pd->device, "wrong QP Type=%x", init_attr->qp_type); + return ERR_PTR(-EINVAL); + } + if ((init_attr->qp_type != IB_QPT_RC && init_attr->qp_type != IB_QPT_UD) + && isdaqp) { + ehca_err(pd->device, "unsupported LL QP Type=%x", + init_attr->qp_type); + return ERR_PTR(-EINVAL); + } else if (init_attr->qp_type == IB_QPT_RC && isdaqp && + (init_attr->cap.max_send_wr > 255 || + init_attr->cap.max_recv_wr > 255 )) { + ehca_err(pd->device, "Invalid Number of max_sq_wr =%x " + "or max_rq_wr=%x for QP Type=%x", + init_attr->cap.max_send_wr, + init_attr->cap.max_recv_wr,init_attr->qp_type); + return ERR_PTR(-EINVAL); + } else if (init_attr->qp_type == IB_QPT_UD && isdaqp && + init_attr->cap.max_send_wr > 255) { + ehca_err(pd->device, + "Invalid Number of max_send_wr=%x for UD QP_TYPE=%x", + init_attr->cap.max_send_wr, init_attr->qp_type); + return ERR_PTR(-EINVAL); + } + + if (pd->uobject && udata) + context = pd->uobject->context; + + my_qp = kmem_cache_alloc(qp_cache, SLAB_KERNEL); + if (!my_qp) { + ehca_err(pd->device, "pd=%p not enough memory to alloc qp", pd); + return ERR_PTR(-ENOMEM); + } + + memset(my_qp, 0, sizeof(struct ehca_qp)); + memset (&parms, 0, sizeof(struct ehca_alloc_qp_parms)); + spin_lock_init(&my_qp->spinlock_s); + spin_lock_init(&my_qp->spinlock_r); + + my_qp->recv_cq = + container_of(init_attr->recv_cq, struct ehca_cq, ib_cq); + my_qp->send_cq = + container_of(init_attr->send_cq, struct ehca_cq, ib_cq); + + my_qp->init_attr = *init_attr; + + do { + if (!idr_pre_get(&ehca_qp_idr, GFP_KERNEL)) { + ret = -ENOMEM; + ehca_err(pd->device, "Can't reserve idr resources."); + goto create_qp_exit0; + } + + spin_lock_irqsave(&ehca_qp_idr_lock, flags); + ret = idr_get_new(&ehca_qp_idr, my_qp, &my_qp->token); + spin_unlock_irqrestore(&ehca_qp_idr_lock, flags); + + } while (ret == -EAGAIN); + + if (ret) { + ret = -ENOMEM; + ehca_err(pd->device, "Can't allocate new idr entry."); + goto create_qp_exit0; + } + + parms.servicetype = ibqptype2servicetype(init_attr->qp_type); + if (parms.servicetype < 0) { + ret = -EINVAL; + ehca_err(pd->device, "Invalid qp_type=%x", init_attr->qp_type); + goto create_qp_exit0; + } + + if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) + parms.sigtype = HCALL_SIGT_EVERY; + else + parms.sigtype = HCALL_SIGT_BY_WQE; + + /* UD_AV CIRCUMVENTION */ + max_send_sge = init_attr->cap.max_send_sge; + max_recv_sge = init_attr->cap.max_recv_sge; + if (IB_QPT_UD == init_attr->qp_type || + IB_QPT_GSI == init_attr->qp_type || + IB_QPT_SMI == init_attr->qp_type) { + max_send_sge += 2; + max_recv_sge += 2; + } + + parms.ipz_eq_handle = shca->eq.ipz_eq_handle; + parms.daqp_ctrl = isdaqp | daqp_completion; + parms.pd = my_pd->fw_pd; + parms.max_recv_sge = max_recv_sge; + parms.max_send_sge = max_send_sge; + + h_ret = hipz_h_alloc_resource_qp(shca->ipz_hca_handle, my_qp, &parms); + + if (h_ret != H_SUCCESS) { + ehca_err(pd->device, "h_alloc_resource_qp() failed h_ret=%lx", + h_ret); + ret = ehca2ib_return_code(h_ret); + goto create_qp_exit1; + } + + switch (init_attr->qp_type) { + case IB_QPT_RC: + if (isdaqp == 0) { + swqe_size = offsetof(struct ehca_wqe, u.nud.sg_list[ + (parms.act_nr_send_sges)]); + rwqe_size = offsetof(struct ehca_wqe, u.nud.sg_list[ + (parms.act_nr_recv_sges)]); + } else { /* for daqp we need to use msg size, not wqe size */ + swqe_size = da_rc_msg_size[max_send_sge]; + rwqe_size = da_rc_msg_size[max_recv_sge]; + parms.act_nr_send_sges = 1; + parms.act_nr_recv_sges = 1; + } + break; + case IB_QPT_UC: + swqe_size = offsetof(struct ehca_wqe, + u.nud.sg_list[parms.act_nr_send_sges]); + rwqe_size = offsetof(struct ehca_wqe, + u.nud.sg_list[parms.act_nr_recv_sges]); + break; + + case IB_QPT_UD: + case IB_QPT_GSI: + case IB_QPT_SMI: + /* UD circumvention */ + parms.act_nr_recv_sges -= 2; + parms.act_nr_send_sges -= 2; + if (isdaqp) { + swqe_size = da_ud_sq_msg_size[max_send_sge]; + rwqe_size = da_rc_msg_size[max_recv_sge]; + parms.act_nr_send_sges = 1; + parms.act_nr_recv_sges = 1; + } else { + swqe_size = offsetof(struct ehca_wqe, + u.ud_av.sg_list[parms.act_nr_send_sges]); + rwqe_size = offsetof(struct ehca_wqe, + u.ud_av.sg_list[parms.act_nr_recv_sges]); + } + + if (IB_QPT_GSI == init_attr->qp_type || + IB_QPT_SMI == init_attr->qp_type) { + parms.act_nr_send_wqes = init_attr->cap.max_send_wr; + parms.act_nr_recv_wqes = init_attr->cap.max_recv_wr; + parms.act_nr_send_sges = init_attr->cap.max_send_sge; + parms.act_nr_recv_sges = init_attr->cap.max_recv_sge; + my_qp->real_qp_num = + (init_attr->qp_type == IB_QPT_SMI) ? 0 : 1; + } + + break; + + default: + break; + } + + /* initializes r/squeue and registers queue pages */ + ret = init_qp_queues(shca, my_qp, + parms.nr_sq_pages, parms.nr_rq_pages, + swqe_size, rwqe_size, + parms.act_nr_send_sges, parms.act_nr_recv_sges); + if (ret) { + ehca_err(pd->device, + "Couldn't initialize r/squeue and pages ret=%x", ret); + goto create_qp_exit2; + } + + my_qp->ib_qp.pd = &my_pd->ib_pd; + my_qp->ib_qp.device = my_pd->ib_pd.device; + + my_qp->ib_qp.recv_cq = init_attr->recv_cq; + my_qp->ib_qp.send_cq = init_attr->send_cq; + + my_qp->ib_qp.qp_num = my_qp->real_qp_num; + my_qp->ib_qp.qp_type = init_attr->qp_type; + + my_qp->qp_type = init_attr->qp_type; + my_qp->ib_qp.srq = init_attr->srq; + + my_qp->ib_qp.qp_context = init_attr->qp_context; + my_qp->ib_qp.event_handler = init_attr->event_handler; + + init_attr->cap.max_inline_data = 0; /* not supported yet */ + init_attr->cap.max_recv_sge = parms.act_nr_recv_sges; + init_attr->cap.max_recv_wr = parms.act_nr_recv_wqes; + init_attr->cap.max_send_sge = parms.act_nr_send_sges; + init_attr->cap.max_send_wr = parms.act_nr_send_wqes; + + /* NOTE: define_apq0() not supported yet */ + if (init_attr->qp_type == IB_QPT_GSI) { + h_ret = ehca_define_sqp(shca, my_qp, init_attr); + if (h_ret != H_SUCCESS) { + ehca_err(pd->device, "ehca_define_sqp() failed rc=%lx", + h_ret); + ret = ehca2ib_return_code(h_ret); + goto create_qp_exit3; + } + } + if (init_attr->send_cq) { + struct ehca_cq *cq = container_of(init_attr->send_cq, + struct ehca_cq, ib_cq); + ret = ehca_cq_assign_qp(cq, my_qp); + if (ret) { + ehca_err(pd->device, "Couldn't assign qp to send_cq ret=%x", + ret); + goto create_qp_exit3; + } + my_qp->send_cq = cq; + } + /* copy queues, galpa data to user space */ + if (context && udata) { + struct ipz_queue *ipz_rqueue = &my_qp->ipz_rqueue; + struct ipz_queue *ipz_squeue = &my_qp->ipz_squeue; + struct ehca_create_qp_resp resp; + struct vm_area_struct * vma; + memset(&resp, 0, sizeof(resp)); + + resp.qp_num = my_qp->real_qp_num; + resp.token = my_qp->token; + resp.qp_type = my_qp->qp_type; + resp.qkey = my_qp->qkey; + resp.real_qp_num = my_qp->real_qp_num; + /* rqueue properties */ + resp.ipz_rqueue.qe_size = ipz_rqueue->qe_size; + resp.ipz_rqueue.act_nr_of_sg = ipz_rqueue->act_nr_of_sg; + resp.ipz_rqueue.queue_length = ipz_rqueue->queue_length; + resp.ipz_rqueue.pagesize = ipz_rqueue->pagesize; + resp.ipz_rqueue.toggle_state = ipz_rqueue->toggle_state; + ret = ehca_mmap_nopage(((u64)(my_qp->token) << 32) | 0x22000000, + ipz_rqueue->queue_length, + (void**)&resp.ipz_rqueue.queue, + &vma); + if (ret) { + ehca_err(pd->device, "Could not mmap rqueue pages"); + goto create_qp_exit3; + } + my_qp->uspace_rqueue = resp.ipz_rqueue.queue; + /* squeue properties */ + resp.ipz_squeue.qe_size = ipz_squeue->qe_size; + resp.ipz_squeue.act_nr_of_sg = ipz_squeue->act_nr_of_sg; + resp.ipz_squeue.queue_length = ipz_squeue->queue_length; + resp.ipz_squeue.pagesize = ipz_squeue->pagesize; + resp.ipz_squeue.toggle_state = ipz_squeue->toggle_state; + ret = ehca_mmap_nopage(((u64)(my_qp->token) << 32) | 0x23000000, + ipz_squeue->queue_length, + (void**)&resp.ipz_squeue.queue, + &vma); + if (ret) { + ehca_err(pd->device, "Could not mmap squeue pages"); + goto create_qp_exit4; + } + my_qp->uspace_squeue = resp.ipz_squeue.queue; + /* fw_handle */ + resp.galpas = my_qp->galpas; + ret = ehca_mmap_register(my_qp->galpas.user.fw_handle, + (void**)&resp.galpas.kernel.fw_handle, + &vma); + if (ret) { + ehca_err(pd->device, "Could not mmap fw_handle"); + goto create_qp_exit5; + } + my_qp->uspace_fwh = (u64)resp.galpas.kernel.fw_handle; + + if (ib_copy_to_udata(udata, &resp, sizeof resp)) { + ehca_err(pd->device, "Copy to udata failed"); + ret = -EINVAL; + goto create_qp_exit6; + } + } + + return &my_qp->ib_qp; + +create_qp_exit6: + ehca_munmap(my_qp->uspace_fwh, EHCA_PAGESIZE); + +create_qp_exit5: + ehca_munmap(my_qp->uspace_squeue, my_qp->ipz_squeue.queue_length); + +create_qp_exit4: + ehca_munmap(my_qp->uspace_rqueue, my_qp->ipz_rqueue.queue_length); + +create_qp_exit3: + ipz_queue_dtor(&my_qp->ipz_rqueue); + ipz_queue_dtor(&my_qp->ipz_squeue); + +create_qp_exit2: + hipz_h_destroy_qp(shca->ipz_hca_handle, my_qp); + +create_qp_exit1: + spin_lock_irqsave(&ehca_qp_idr_lock, flags); + idr_remove(&ehca_qp_idr, my_qp->token); + spin_unlock_irqrestore(&ehca_qp_idr_lock, flags); + +create_qp_exit0: + kmem_cache_free(qp_cache, my_qp); + return ERR_PTR(ret); +} + +/* + * prepare_sqe_rts called by internal_modify_qp() at trans sqe -> rts + * set purge bit of bad wqe and subsequent wqes to avoid reentering sqe + * returns total number of bad wqes in bad_wqe_cnt + */ +static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca, + int *bad_wqe_cnt) +{ + u64 h_ret; + struct ipz_queue *squeue; + void *bad_send_wqe_p, *bad_send_wqe_v; + void *squeue_start_p, *squeue_end_p; + void *squeue_start_v, *squeue_end_v; + struct ehca_wqe *wqe; + int qp_num = my_qp->ib_qp.qp_num; + + /* get send wqe pointer */ + h_ret = hipz_h_disable_and_get_wqe(shca->ipz_hca_handle, + my_qp->ipz_qp_handle, &my_qp->pf, + &bad_send_wqe_p, NULL, 2); + if (h_ret != H_SUCCESS) { + ehca_err(&shca->ib_device, "hipz_h_disable_and_get_wqe() failed" + " ehca_qp=%p qp_num=%x h_ret=%lx", + my_qp, qp_num, h_ret); + return ehca2ib_return_code(h_ret); + } + bad_send_wqe_p = (void*)((u64)bad_send_wqe_p & (~(1L<<63))); + ehca_dbg(&shca->ib_device, "qp_num=%x bad_send_wqe_p=%p", + qp_num, bad_send_wqe_p); + /* convert wqe pointer to vadr */ + bad_send_wqe_v = abs_to_virt((u64)bad_send_wqe_p); + if (ehca_debug_level) + ehca_dmp(bad_send_wqe_v, 32, "qp_num=%x bad_wqe", qp_num); + squeue = &my_qp->ipz_squeue; + squeue_start_p = (void*)virt_to_abs(ipz_qeit_calc(squeue, 0L)); + squeue_end_p = squeue_start_p+squeue->queue_length; + squeue_start_v = abs_to_virt((u64)squeue_start_p); + squeue_end_v = abs_to_virt((u64)squeue_end_p); + ehca_dbg(&shca->ib_device, "qp_num=%x squeue_start_v=%p squeue_end_v=%p", + qp_num, squeue_start_v, squeue_end_v); + + /* loop sets wqe's purge bit */ + wqe = (struct ehca_wqe*)bad_send_wqe_v; + *bad_wqe_cnt = 0; + while (wqe->optype != 0xff && wqe->wqef != 0xff) { + if (ehca_debug_level) + ehca_dmp(wqe, 32, "qp_num=%x wqe", qp_num); + wqe->nr_of_data_seg = 0; /* suppress data access */ + wqe->wqef = WQEF_PURGE; /* WQE to be purged */ + wqe = (struct ehca_wqe*)((u8*)wqe+squeue->qe_size); + *bad_wqe_cnt = (*bad_wqe_cnt)+1; + if ((void*)wqe >= squeue_end_v) { + wqe = squeue_start_v; + } + } + /* + * bad wqe will be reprocessed and ignored when pol_cq() is called, + * i.e. nr of wqes with flush error status is one less + */ + ehca_dbg(&shca->ib_device, "qp_num=%x flusherr_wqe_cnt=%x", + qp_num, (*bad_wqe_cnt)-1); + wqe->wqef = 0; + + return 0; +} + +/* + * internal_modify_qp with circumvention to handle aqp0 properly + * smi_reset2init indicates if this is an internal reset-to-init-call for + * smi. This flag must always be zero if called from ehca_modify_qp()! + * This internal func was intorduced to avoid recursion of ehca_modify_qp()! + */ +static int internal_modify_qp(struct ib_qp *ibqp, + struct ib_qp_attr *attr, + int attr_mask, int smi_reset2init) +{ + enum ib_qp_state qp_cur_state, qp_new_state; + int cnt, qp_attr_idx, ret = 0; + enum ib_qp_statetrans statetrans; + struct hcp_modify_qp_control_block *mqpcb; + struct ehca_qp *my_qp = container_of(ibqp, struct ehca_qp, ib_qp); + struct ehca_shca *shca = + container_of(ibqp->pd->device, struct ehca_shca, ib_device); + u64 update_mask; + u64 h_ret; + int bad_wqe_cnt = 0; + int squeue_locked = 0; + unsigned long spl_flags = 0; + + /* do query_qp to obtain current attr values */ + mqpcb = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); + if (mqpcb == NULL) { + ehca_err(ibqp->device, "Could not get zeroed page for mqpcb " + "ehca_qp=%p qp_num=%x ", my_qp, ibqp->qp_num); + return -ENOMEM; + } + + h_ret = hipz_h_query_qp(shca->ipz_hca_handle, + my_qp->ipz_qp_handle, + &my_qp->pf, + mqpcb, my_qp->galpas.kernel); + if (h_ret != H_SUCCESS) { + ehca_err(ibqp->device, "hipz_h_query_qp() failed " + "ehca_qp=%p qp_num=%x h_ret=%lx", + my_qp, ibqp->qp_num, h_ret); + ret = ehca2ib_return_code(h_ret); + goto modify_qp_exit1; + } + + qp_cur_state = ehca2ib_qp_state(mqpcb->qp_state); + + if (qp_cur_state == -EINVAL) { /* invalid qp state */ + ret = -EINVAL; + ehca_err(ibqp->device, "Invalid current ehca_qp_state=%x " + "ehca_qp=%p qp_num=%x", + mqpcb->qp_state, my_qp, ibqp->qp_num); + goto modify_qp_exit1; + } + /* + * circumvention to set aqp0 initial state to init + * as expected by IB spec + */ + if (smi_reset2init == 0 && + ibqp->qp_type == IB_QPT_SMI && + qp_cur_state == IB_QPS_RESET && + (attr_mask & IB_QP_STATE) && + attr->qp_state == IB_QPS_INIT) { /* RESET -> INIT */ + struct ib_qp_attr smiqp_attr = { + .qp_state = IB_QPS_INIT, + .port_num = my_qp->init_attr.port_num, + .pkey_index = 0, + .qkey = 0 + }; + int smiqp_attr_mask = IB_QP_STATE | IB_QP_PORT | + IB_QP_PKEY_INDEX | IB_QP_QKEY; + int smirc = internal_modify_qp( + ibqp, &smiqp_attr, smiqp_attr_mask, 1); + if (smirc) { + ehca_err(ibqp->device, "SMI RESET -> INIT failed. " + "ehca_modify_qp() rc=%x", smirc); + ret = H_PARAMETER; + goto modify_qp_exit1; + } + qp_cur_state = IB_QPS_INIT; + ehca_dbg(ibqp->device, "SMI RESET -> INIT succeeded"); + } + /* is transmitted current state equal to "real" current state */ + if ((attr_mask & IB_QP_CUR_STATE) && + qp_cur_state != attr->cur_qp_state) { + ret = -EINVAL; + ehca_err(ibqp->device, + "Invalid IB_QP_CUR_STATE attr->curr_qp_state=%x <>" + " actual cur_qp_state=%x. ehca_qp=%p qp_num=%x", + attr->cur_qp_state, qp_cur_state, my_qp, ibqp->qp_num); + goto modify_qp_exit1; + } + + ehca_dbg(ibqp->device,"ehca_qp=%p qp_num=%x current qp_state=%x " + "new qp_state=%x attribute_mask=%x", + my_qp, ibqp->qp_num, qp_cur_state, attr->qp_state, attr_mask); + + qp_new_state = attr_mask & IB_QP_STATE ? attr->qp_state : qp_cur_state; + if (!smi_reset2init && + !ib_modify_qp_is_ok(qp_cur_state, qp_new_state, ibqp->qp_type, + attr_mask)) { + ret = -EINVAL; + ehca_err(ibqp->device, + "Invalid qp transition new_state=%x cur_state=%x " + "ehca_qp=%p qp_num=%x attr_mask=%x", qp_new_state, + qp_cur_state, my_qp, ibqp->qp_num, attr_mask); + goto modify_qp_exit1; + } + + if ((mqpcb->qp_state = ib2ehca_qp_state(qp_new_state))) + update_mask = EHCA_BMASK_SET(MQPCB_MASK_QP_STATE, 1); + else { + ret = -EINVAL; + ehca_err(ibqp->device, "Invalid new qp state=%x " + "ehca_qp=%p qp_num=%x", + qp_new_state, my_qp, ibqp->qp_num); + goto modify_qp_exit1; + } + + /* retrieve state transition struct to get req and opt attrs */ + statetrans = get_modqp_statetrans(qp_cur_state, qp_new_state); + if (statetrans < 0) { + ret = -EINVAL; + ehca_err(ibqp->device, " qp_cur_state=%x " + "new_qp_state=%x State_xsition=%x ehca_qp=%p " + "qp_num=%x", qp_cur_state, qp_new_state, + statetrans, my_qp, ibqp->qp_num); + goto modify_qp_exit1; + } + + qp_attr_idx = ib2ehcaqptype(ibqp->qp_type); + + if (qp_attr_idx < 0) { + ret = qp_attr_idx; + ehca_err(ibqp->device, + "Invalid QP type=%x ehca_qp=%p qp_num=%x", + ibqp->qp_type, my_qp, ibqp->qp_num); + goto modify_qp_exit1; + } + + ehca_dbg(ibqp->device, + "ehca_qp=%p qp_num=%x qp_state_xsit=%x", + my_qp, ibqp->qp_num, statetrans); + + /* sqe -> rts: set purge bit of bad wqe before actual trans */ + if ((my_qp->qp_type == IB_QPT_UD || + my_qp->qp_type == IB_QPT_GSI || + my_qp->qp_type == IB_QPT_SMI) && + statetrans == IB_QPST_SQE2RTS) { + /* mark next free wqe if kernel */ + if (my_qp->uspace_squeue == 0) { + struct ehca_wqe *wqe; + /* lock send queue */ + spin_lock_irqsave(&my_qp->spinlock_s, spl_flags); + squeue_locked = 1; + /* mark next free wqe */ + wqe = (struct ehca_wqe*) + ipz_qeit_get(&my_qp->ipz_squeue); + wqe->optype = wqe->wqef = 0xff; + ehca_dbg(ibqp->device, "qp_num=%x next_free_wqe=%p", + ibqp->qp_num, wqe); + } + ret = prepare_sqe_rts(my_qp, shca, &bad_wqe_cnt); + if (ret) { + ehca_err(ibqp->device, "prepare_sqe_rts() failed " + "ehca_qp=%p qp_num=%x ret=%x", + my_qp, ibqp->qp_num, ret); + goto modify_qp_exit2; + } + } + + /* + * enable RDMA_Atomic_Control if reset->init und reliable con + * this is necessary since gen2 does not provide that flag, + * but pHyp requires it + */ + if (statetrans == IB_QPST_RESET2INIT && + (ibqp->qp_type == IB_QPT_RC || ibqp->qp_type == IB_QPT_UC)) { + mqpcb->rdma_atomic_ctrl = 3; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_RDMA_ATOMIC_CTRL, 1); + } + /* circ. pHyp requires #RDMA/Atomic Resp Res for UC INIT -> RTR */ + if (statetrans == IB_QPST_INIT2RTR && + (ibqp->qp_type == IB_QPT_UC) && + !(attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)) { + mqpcb->rdma_nr_atomic_resp_res = 1; /* default to 1 */ + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_RDMA_NR_ATOMIC_RESP_RES, 1); + } + + if (attr_mask & IB_QP_PKEY_INDEX) { + mqpcb->prim_p_key_idx = attr->pkey_index; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_PRIM_P_KEY_IDX, 1); + } + if (attr_mask & IB_QP_PORT) { + if (attr->port_num < 1 || attr->port_num > shca->num_ports) { + ret = -EINVAL; + ehca_err(ibqp->device, "Invalid port=%x. " + "ehca_qp=%p qp_num=%x num_ports=%x", + attr->port_num, my_qp, ibqp->qp_num, + shca->num_ports); + goto modify_qp_exit2; + } + mqpcb->prim_phys_port = attr->port_num; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_PRIM_PHYS_PORT, 1); + } + if (attr_mask & IB_QP_QKEY) { + mqpcb->qkey = attr->qkey; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_QKEY, 1); + } + if (attr_mask & IB_QP_AV) { + int ah_mult = ib_rate_to_mult(attr->ah_attr.static_rate); + int ehca_mult = ib_rate_to_mult(shca->sport[my_qp-> + init_attr.port_num].rate); + + mqpcb->dlid = attr->ah_attr.dlid; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_DLID, 1); + mqpcb->source_path_bits = attr->ah_attr.src_path_bits; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SOURCE_PATH_BITS, 1); + mqpcb->service_level = attr->ah_attr.sl; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SERVICE_LEVEL, 1); + + if (ah_mult < ehca_mult) + mqpcb->max_static_rate = (ah_mult > 0) ? + ((ehca_mult - 1) / ah_mult) : 0; + else + mqpcb->max_static_rate = 0; + + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_MAX_STATIC_RATE, 1); + + /* + * only if GRH is TRUE we might consider SOURCE_GID_IDX + * and DEST_GID otherwise phype will return H_ATTR_PARM!!! + */ + if (attr->ah_attr.ah_flags == IB_AH_GRH) { + mqpcb->send_grh_flag = 1 << 31; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_SEND_GRH_FLAG, 1); + mqpcb->source_gid_idx = attr->ah_attr.grh.sgid_index; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_SOURCE_GID_IDX, 1); + + for (cnt = 0; cnt < 16; cnt++) + mqpcb->dest_gid.byte[cnt] = + attr->ah_attr.grh.dgid.raw[cnt]; + + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_DEST_GID, 1); + mqpcb->flow_label = attr->ah_attr.grh.flow_label; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_FLOW_LABEL, 1); + mqpcb->hop_limit = attr->ah_attr.grh.hop_limit; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_HOP_LIMIT, 1); + mqpcb->traffic_class = attr->ah_attr.grh.traffic_class; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_TRAFFIC_CLASS, 1); + } + } + + if (attr_mask & IB_QP_PATH_MTU) { + mqpcb->path_mtu = attr->path_mtu; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_PATH_MTU, 1); + } + if (attr_mask & IB_QP_TIMEOUT) { + mqpcb->timeout = attr->timeout; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_TIMEOUT, 1); + } + if (attr_mask & IB_QP_RETRY_CNT) { + mqpcb->retry_count = attr->retry_cnt; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_RETRY_COUNT, 1); + } + if (attr_mask & IB_QP_RNR_RETRY) { + mqpcb->rnr_retry_count = attr->rnr_retry; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_RNR_RETRY_COUNT, 1); + } + if (attr_mask & IB_QP_RQ_PSN) { + mqpcb->receive_psn = attr->rq_psn; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_RECEIVE_PSN, 1); + } + if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) { + mqpcb->rdma_nr_atomic_resp_res = attr->max_dest_rd_atomic < 3 ? + attr->max_dest_rd_atomic : 2; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_RDMA_NR_ATOMIC_RESP_RES, 1); + } + if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { + mqpcb->rdma_atomic_outst_dest_qp = attr->max_rd_atomic < 3 ? + attr->max_rd_atomic : 2; + update_mask |= + EHCA_BMASK_SET + (MQPCB_MASK_RDMA_ATOMIC_OUTST_DEST_QP, 1); + } + if (attr_mask & IB_QP_ALT_PATH) { + int ah_mult = ib_rate_to_mult(attr->alt_ah_attr.static_rate); + int ehca_mult = ib_rate_to_mult( + shca->sport[my_qp->init_attr.port_num].rate); + + mqpcb->dlid_al = attr->alt_ah_attr.dlid; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_DLID_AL, 1); + mqpcb->source_path_bits_al = attr->alt_ah_attr.src_path_bits; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_SOURCE_PATH_BITS_AL, 1); + mqpcb->service_level_al = attr->alt_ah_attr.sl; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SERVICE_LEVEL_AL, 1); + + if (ah_mult < ehca_mult) + mqpcb->max_static_rate = (ah_mult > 0) ? + ((ehca_mult - 1) / ah_mult) : 0; + else + mqpcb->max_static_rate_al = 0; + + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_MAX_STATIC_RATE_AL, 1); + + /* + * only if GRH is TRUE we might consider SOURCE_GID_IDX + * and DEST_GID otherwise phype will return H_ATTR_PARM!!! + */ + if (attr->alt_ah_attr.ah_flags == IB_AH_GRH) { + mqpcb->send_grh_flag_al = 1 << 31; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_SEND_GRH_FLAG_AL, 1); + mqpcb->source_gid_idx_al = + attr->alt_ah_attr.grh.sgid_index; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_SOURCE_GID_IDX_AL, 1); + + for (cnt = 0; cnt < 16; cnt++) + mqpcb->dest_gid_al.byte[cnt] = + attr->alt_ah_attr.grh.dgid.raw[cnt]; + + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_DEST_GID_AL, 1); + mqpcb->flow_label_al = attr->alt_ah_attr.grh.flow_label; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_FLOW_LABEL_AL, 1); + mqpcb->hop_limit_al = attr->alt_ah_attr.grh.hop_limit; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_HOP_LIMIT_AL, 1); + mqpcb->traffic_class_al = + attr->alt_ah_attr.grh.traffic_class; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_TRAFFIC_CLASS_AL, 1); + } + } + + if (attr_mask & IB_QP_MIN_RNR_TIMER) { + mqpcb->min_rnr_nak_timer_field = attr->min_rnr_timer; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_MIN_RNR_NAK_TIMER_FIELD, 1); + } + + if (attr_mask & IB_QP_SQ_PSN) { + mqpcb->send_psn = attr->sq_psn; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SEND_PSN, 1); + } + + if (attr_mask & IB_QP_DEST_QPN) { + mqpcb->dest_qp_nr = attr->dest_qp_num; + update_mask |= EHCA_BMASK_SET(MQPCB_MASK_DEST_QP_NR, 1); + } + + if (attr_mask & IB_QP_PATH_MIG_STATE) { + mqpcb->path_migration_state = attr->path_mig_state; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_PATH_MIGRATION_STATE, 1); + } + + if (attr_mask & IB_QP_CAP) { + mqpcb->max_nr_outst_send_wr = attr->cap.max_send_wr+1; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_MAX_NR_OUTST_SEND_WR, 1); + mqpcb->max_nr_outst_recv_wr = attr->cap.max_recv_wr+1; + update_mask |= + EHCA_BMASK_SET(MQPCB_MASK_MAX_NR_OUTST_RECV_WR, 1); + /* no support for max_send/recv_sge yet */ + } + + if (ehca_debug_level) + ehca_dmp(mqpcb, 4*70, "qp_num=%x", ibqp->qp_num); + + h_ret = hipz_h_modify_qp(shca->ipz_hca_handle, + my_qp->ipz_qp_handle, + &my_qp->pf, + update_mask, + mqpcb, my_qp->galpas.kernel); + + if (h_ret != H_SUCCESS) { + ret = ehca2ib_return_code(h_ret); + ehca_err(ibqp->device, "hipz_h_modify_qp() failed rc=%lx " + "ehca_qp=%p qp_num=%x",h_ret, my_qp, ibqp->qp_num); + goto modify_qp_exit2; + } + + if ((my_qp->qp_type == IB_QPT_UD || + my_qp->qp_type == IB_QPT_GSI || + my_qp->qp_type == IB_QPT_SMI) && + statetrans == IB_QPST_SQE2RTS) { + /* doorbell to reprocessing wqes */ + iosync(); /* serialize GAL register access */ + hipz_update_sqa(my_qp, bad_wqe_cnt-1); + ehca_gen_dbg("doorbell for %x wqes", bad_wqe_cnt); + } + + if (statetrans == IB_QPST_RESET2INIT || + statetrans == IB_QPST_INIT2INIT) { + mqpcb->qp_enable = 1; + mqpcb->qp_state = EHCA_QPS_INIT; + update_mask = 0; + update_mask = EHCA_BMASK_SET(MQPCB_MASK_QP_ENABLE, 1); + + h_ret = hipz_h_modify_qp(shca->ipz_hca_handle, + my_qp->ipz_qp_handle, + &my_qp->pf, + update_mask, + mqpcb, + my_qp->galpas.kernel); + + if (h_ret != H_SUCCESS) { + ret = ehca2ib_return_code(h_ret); + ehca_err(ibqp->device, "ENABLE in context of " + "RESET_2_INIT failed! Maybe you didn't get " + "a LID h_ret=%lx ehca_qp=%p qp_num=%x", + h_ret, my_qp, ibqp->qp_num); + goto modify_qp_exit2; + } + } + + if (statetrans == IB_QPST_ANY2RESET) { + ipz_qeit_reset(&my_qp->ipz_rqueue); + ipz_qeit_reset(&my_qp->ipz_squeue); + } + + if (attr_mask & IB_QP_QKEY) + my_qp->qkey = attr->qkey; + +modify_qp_exit2: + if (squeue_locked) { /* this means: sqe -> rts */ + spin_unlock_irqrestore(&my_qp->spinlock_s, spl_flags); + my_qp->sqerr_purgeflag = 1; + } + +modify_qp_exit1: + kfree(mqpcb); + + return ret; +} + +int ehca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) +{ + struct ehca_qp *my_qp = container_of(ibqp, struct ehca_qp, ib_qp); + struct ehca_pd *my_pd = container_of(my_qp->ib_qp.pd, struct ehca_pd, + ib_pd); + u32 cur_pid = current->tgid; + + if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && + my_pd->ownpid != cur_pid) { + ehca_err(ibqp->pd->device, "Invalid caller pid=%x ownpid=%x", + cur_pid, my_pd->ownpid); + return -EINVAL; + } + + return internal_modify_qp(ibqp, attr, attr_mask, 0); +} + +int ehca_query_qp(struct ib_qp *qp, + struct ib_qp_attr *qp_attr, + int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr) +{ + struct ehca_qp *my_qp = container_of(qp, struct ehca_qp, ib_qp); + struct ehca_pd *my_pd = container_of(my_qp->ib_qp.pd, struct ehca_pd, + ib_pd); + struct ehca_shca *shca = container_of(qp->device, struct ehca_shca, + ib_device); + struct ipz_adapter_handle adapter_handle = shca->ipz_hca_handle; + struct hcp_modify_qp_control_block *qpcb; + u32 cur_pid = current->tgid; + int cnt, ret = 0; + u64 h_ret; + + if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && + my_pd->ownpid != cur_pid) { + ehca_err(qp->device, "Invalid caller pid=%x ownpid=%x", + cur_pid, my_pd->ownpid); + return -EINVAL; + } + + if (qp_attr_mask & QP_ATTR_QUERY_NOT_SUPPORTED) { + ehca_err(qp->device,"Invalid attribute mask " + "ehca_qp=%p qp_num=%x qp_attr_mask=%x ", + my_qp, qp->qp_num, qp_attr_mask); + return -EINVAL; + } + + qpcb = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL ); + if (!qpcb) { + ehca_err(qp->device,"Out of memory for qpcb " + "ehca_qp=%p qp_num=%x", my_qp, qp->qp_num); + return -ENOMEM; + } + + h_ret = hipz_h_query_qp(adapter_handle, + my_qp->ipz_qp_handle, + &my_qp->pf, + qpcb, my_qp->galpas.kernel); + + if (h_ret != H_SUCCESS) { + ret = ehca2ib_return_code(h_ret); + ehca_err(qp->device,"hipz_h_query_qp() failed " + "ehca_qp=%p qp_num=%x h_ret=%lx", + my_qp, qp->qp_num, h_ret); + goto query_qp_exit1; + } + + qp_attr->cur_qp_state = ehca2ib_qp_state(qpcb->qp_state); + qp_attr->qp_state = qp_attr->cur_qp_state; + + if (qp_attr->cur_qp_state == -EINVAL) { + ret = -EINVAL; + ehca_err(qp->device,"Got invalid ehca_qp_state=%x " + "ehca_qp=%p qp_num=%x", + qpcb->qp_state, my_qp, qp->qp_num); + goto query_qp_exit1; + } + + if (qp_attr->qp_state == IB_QPS_SQD) + qp_attr->sq_draining = 1; + + qp_attr->qkey = qpcb->qkey; + qp_attr->path_mtu = qpcb->path_mtu; + qp_attr->path_mig_state = qpcb->path_migration_state; + qp_attr->rq_psn = qpcb->receive_psn; + qp_attr->sq_psn = qpcb->send_psn; + qp_attr->min_rnr_timer = qpcb->min_rnr_nak_timer_field; + qp_attr->cap.max_send_wr = qpcb->max_nr_outst_send_wr-1; + qp_attr->cap.max_recv_wr = qpcb->max_nr_outst_recv_wr-1; + /* UD_AV CIRCUMVENTION */ + if (my_qp->qp_type == IB_QPT_UD) { + qp_attr->cap.max_send_sge = + qpcb->actual_nr_sges_in_sq_wqe - 2; + qp_attr->cap.max_recv_sge = + qpcb->actual_nr_sges_in_rq_wqe - 2; + } else { + qp_attr->cap.max_send_sge = + qpcb->actual_nr_sges_in_sq_wqe; + qp_attr->cap.max_recv_sge = + qpcb->actual_nr_sges_in_rq_wqe; + } + + qp_attr->cap.max_inline_data = my_qp->sq_max_inline_data_size; + qp_attr->dest_qp_num = qpcb->dest_qp_nr; + + qp_attr->pkey_index = + EHCA_BMASK_GET(MQPCB_PRIM_P_KEY_IDX, qpcb->prim_p_key_idx); + + qp_attr->port_num = + EHCA_BMASK_GET(MQPCB_PRIM_PHYS_PORT, qpcb->prim_phys_port); + + qp_attr->timeout = qpcb->timeout; + qp_attr->retry_cnt = qpcb->retry_count; + qp_attr->rnr_retry = qpcb->rnr_retry_count; + + qp_attr->alt_pkey_index = + EHCA_BMASK_GET(MQPCB_PRIM_P_KEY_IDX, qpcb->alt_p_key_idx); + + qp_attr->alt_port_num = qpcb->alt_phys_port; + qp_attr->alt_timeout = qpcb->timeout_al; + + /* primary av */ + qp_attr->ah_attr.sl = qpcb->service_level; + + if (qpcb->send_grh_flag) { + qp_attr->ah_attr.ah_flags = IB_AH_GRH; + } + + qp_attr->ah_attr.static_rate = qpcb->max_static_rate; + qp_attr->ah_attr.dlid = qpcb->dlid; + qp_attr->ah_attr.src_path_bits = qpcb->source_path_bits; + qp_attr->ah_attr.port_num = qp_attr->port_num; + + /* primary GRH */ + qp_attr->ah_attr.grh.traffic_class = qpcb->traffic_class; + qp_attr->ah_attr.grh.hop_limit = qpcb->hop_limit; + qp_attr->ah_attr.grh.sgid_index = qpcb->source_gid_idx; + qp_attr->ah_attr.grh.flow_label = qpcb->flow_label; + + for (cnt = 0; cnt < 16; cnt++) + qp_attr->ah_attr.grh.dgid.raw[cnt] = + qpcb->dest_gid.byte[cnt]; + + /* alternate AV */ + qp_attr->alt_ah_attr.sl = qpcb->service_level_al; + if (qpcb->send_grh_flag_al) { + qp_attr->alt_ah_attr.ah_flags = IB_AH_GRH; + } + + qp_attr->alt_ah_attr.static_rate = qpcb->max_static_rate_al; + qp_attr->alt_ah_attr.dlid = qpcb->dlid_al; + qp_attr->alt_ah_attr.src_path_bits = qpcb->source_path_bits_al; + + /* alternate GRH */ + qp_attr->alt_ah_attr.grh.traffic_class = qpcb->traffic_class_al; + qp_attr->alt_ah_attr.grh.hop_limit = qpcb->hop_limit_al; + qp_attr->alt_ah_attr.grh.sgid_index = qpcb->source_gid_idx_al; + qp_attr->alt_ah_attr.grh.flow_label = qpcb->flow_label_al; + + for (cnt = 0; cnt < 16; cnt++) + qp_attr->alt_ah_attr.grh.dgid.raw[cnt] = + qpcb->dest_gid_al.byte[cnt]; + + /* return init attributes given in ehca_create_qp */ + if (qp_init_attr) + *qp_init_attr = my_qp->init_attr; + + if (ehca_debug_level) + ehca_dmp(qpcb, 4*70, "qp_num=%x", qp->qp_num); + +query_qp_exit1: + kfree(qpcb); + + return ret; +} + +int ehca_destroy_qp(struct ib_qp *ibqp) +{ + struct ehca_qp *my_qp = container_of(ibqp, struct ehca_qp, ib_qp); + struct ehca_shca *shca = container_of(ibqp->device, struct ehca_shca, + ib_device); + struct ehca_pd *my_pd = container_of(my_qp->ib_qp.pd, struct ehca_pd, + ib_pd); + u32 cur_pid = current->tgid; + u32 qp_num = ibqp->qp_num; + int ret; + u64 h_ret; + u8 port_num; + enum ib_qp_type qp_type; + unsigned long flags; + + if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context && + my_pd->ownpid != cur_pid) { + ehca_err(ibqp->device, "Invalid caller pid=%x ownpid=%x", + cur_pid, my_pd->ownpid); + return -EINVAL; + } + + if (my_qp->send_cq) { + ret = ehca_cq_unassign_qp(my_qp->send_cq, + my_qp->real_qp_num); + if (ret) { + ehca_err(ibqp->device, "Couldn't unassign qp from " + "send_cq ret=%x qp_num=%x cq_num=%x", ret, + my_qp->ib_qp.qp_num, my_qp->send_cq->cq_number); + return ret; + } + } + + spin_lock_irqsave(&ehca_qp_idr_lock, flags); + idr_remove(&ehca_qp_idr, my_qp->token); + spin_unlock_irqrestore(&ehca_qp_idr_lock, flags); + + /* un-mmap if vma alloc */ + if (my_qp->uspace_rqueue) { + ret = ehca_munmap(my_qp->uspace_rqueue, + my_qp->ipz_rqueue.queue_length); + if (ret) + ehca_err(ibqp->device, "Could not munmap rqueue " + "qp_num=%x", qp_num); + ret = ehca_munmap(my_qp->uspace_squeue, + my_qp->ipz_squeue.queue_length); + if (ret) + ehca_err(ibqp->device, "Could not munmap squeue " + "qp_num=%x", qp_num); + ret = ehca_munmap(my_qp->uspace_fwh, EHCA_PAGESIZE); + if (ret) + ehca_err(ibqp->device, "Could not munmap fwh qp_num=%x", + qp_num); + } + + h_ret = hipz_h_destroy_qp(shca->ipz_hca_handle, my_qp); + if (h_ret != H_SUCCESS) { + ehca_err(ibqp->device, "hipz_h_destroy_qp() failed rc=%lx " + "ehca_qp=%p qp_num=%x", h_ret, my_qp, qp_num); + return ehca2ib_return_code(h_ret); + } + + port_num = my_qp->init_attr.port_num; + qp_type = my_qp->init_attr.qp_type; + + /* no support for IB_QPT_SMI yet */ + if (qp_type == IB_QPT_GSI) { + struct ib_event event; + ehca_info(ibqp->device, "device %s: port %x is inactive.", + shca->ib_device.name, port_num); + event.device = &shca->ib_device; + event.event = IB_EVENT_PORT_ERR; + event.element.port_num = port_num; + shca->sport[port_num - 1].port_state = IB_PORT_DOWN; + ib_dispatch_event(&event); + } + + ipz_queue_dtor(&my_qp->ipz_rqueue); + ipz_queue_dtor(&my_qp->ipz_squeue); + kmem_cache_free(qp_cache, my_qp); + return 0; +} + +int ehca_init_qp_cache(void) +{ + qp_cache = kmem_cache_create("ehca_cache_qp", + sizeof(struct ehca_qp), 0, + SLAB_HWCACHE_ALIGN, + NULL, NULL); + if (!qp_cache) + return -ENOMEM; + return 0; +} + +void ehca_cleanup_qp_cache(void) +{ + if (qp_cache) + kmem_cache_destroy(qp_cache); +} diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c new file mode 100644 index 00000000000..b46bda1bf85 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_reqs.c @@ -0,0 +1,653 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * post_send/recv, poll_cq, req_notify + * + * Authors: Waleri Fomin + * Hoang-Nam Nguyen + * Reinhard Ernst + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + + +#include +#include "ehca_classes.h" +#include "ehca_tools.h" +#include "ehca_qes.h" +#include "ehca_iverbs.h" +#include "hcp_if.h" +#include "hipz_fns.h" + +static inline int ehca_write_rwqe(struct ipz_queue *ipz_rqueue, + struct ehca_wqe *wqe_p, + struct ib_recv_wr *recv_wr) +{ + u8 cnt_ds; + if (unlikely((recv_wr->num_sge < 0) || + (recv_wr->num_sge > ipz_rqueue->act_nr_of_sg))) { + ehca_gen_err("Invalid number of WQE SGE. " + "num_sqe=%x max_nr_of_sg=%x", + recv_wr->num_sge, ipz_rqueue->act_nr_of_sg); + return -EINVAL; /* invalid SG list length */ + } + + /* clear wqe header until sglist */ + memset(wqe_p, 0, offsetof(struct ehca_wqe, u.ud_av.sg_list)); + + wqe_p->work_request_id = recv_wr->wr_id; + wqe_p->nr_of_data_seg = recv_wr->num_sge; + + for (cnt_ds = 0; cnt_ds < recv_wr->num_sge; cnt_ds++) { + wqe_p->u.all_rcv.sg_list[cnt_ds].vaddr = + recv_wr->sg_list[cnt_ds].addr; + wqe_p->u.all_rcv.sg_list[cnt_ds].lkey = + recv_wr->sg_list[cnt_ds].lkey; + wqe_p->u.all_rcv.sg_list[cnt_ds].length = + recv_wr->sg_list[cnt_ds].length; + } + + if (ehca_debug_level) { + ehca_gen_dbg("RECEIVE WQE written into ipz_rqueue=%p", ipz_rqueue); + ehca_dmp( wqe_p, 16*(6 + wqe_p->nr_of_data_seg), "recv wqe"); + } + + return 0; +} + +#if defined(DEBUG_GSI_SEND_WR) + +/* need ib_mad struct */ +#include + +static void trace_send_wr_ud(const struct ib_send_wr *send_wr) +{ + int idx; + int j; + while (send_wr) { + struct ib_mad_hdr *mad_hdr = send_wr->wr.ud.mad_hdr; + struct ib_sge *sge = send_wr->sg_list; + ehca_gen_dbg("send_wr#%x wr_id=%lx num_sge=%x " + "send_flags=%x opcode=%x",idx, send_wr->wr_id, + send_wr->num_sge, send_wr->send_flags, + send_wr->opcode); + if (mad_hdr) { + ehca_gen_dbg("send_wr#%x mad_hdr base_version=%x " + "mgmt_class=%x class_version=%x method=%x " + "status=%x class_specific=%x tid=%lx " + "attr_id=%x resv=%x attr_mod=%x", + idx, mad_hdr->base_version, + mad_hdr->mgmt_class, + mad_hdr->class_version, mad_hdr->method, + mad_hdr->status, mad_hdr->class_specific, + mad_hdr->tid, mad_hdr->attr_id, + mad_hdr->resv, + mad_hdr->attr_mod); + } + for (j = 0; j < send_wr->num_sge; j++) { + u8 *data = (u8 *) abs_to_virt(sge->addr); + ehca_gen_dbg("send_wr#%x sge#%x addr=%p length=%x " + "lkey=%x", + idx, j, data, sge->length, sge->lkey); + /* assume length is n*16 */ + ehca_dmp(data, sge->length, "send_wr#%x sge#%x", + idx, j); + sge++; + } /* eof for j */ + idx++; + send_wr = send_wr->next; + } /* eof while send_wr */ +} + +#endif /* DEBUG_GSI_SEND_WR */ + +static inline int ehca_write_swqe(struct ehca_qp *qp, + struct ehca_wqe *wqe_p, + const struct ib_send_wr *send_wr) +{ + u32 idx; + u64 dma_length; + struct ehca_av *my_av; + u32 remote_qkey = send_wr->wr.ud.remote_qkey; + + if (unlikely((send_wr->num_sge < 0) || + (send_wr->num_sge > qp->ipz_squeue.act_nr_of_sg))) { + ehca_gen_err("Invalid number of WQE SGE. " + "num_sqe=%x max_nr_of_sg=%x", + send_wr->num_sge, qp->ipz_squeue.act_nr_of_sg); + return -EINVAL; /* invalid SG list length */ + } + + /* clear wqe header until sglist */ + memset(wqe_p, 0, offsetof(struct ehca_wqe, u.ud_av.sg_list)); + + wqe_p->work_request_id = send_wr->wr_id; + + switch (send_wr->opcode) { + case IB_WR_SEND: + case IB_WR_SEND_WITH_IMM: + wqe_p->optype = WQE_OPTYPE_SEND; + break; + case IB_WR_RDMA_WRITE: + case IB_WR_RDMA_WRITE_WITH_IMM: + wqe_p->optype = WQE_OPTYPE_RDMAWRITE; + break; + case IB_WR_RDMA_READ: + wqe_p->optype = WQE_OPTYPE_RDMAREAD; + break; + default: + ehca_gen_err("Invalid opcode=%x", send_wr->opcode); + return -EINVAL; /* invalid opcode */ + } + + wqe_p->wqef = (send_wr->opcode) & WQEF_HIGH_NIBBLE; + + wqe_p->wr_flag = 0; + + if (send_wr->send_flags & IB_SEND_SIGNALED) + wqe_p->wr_flag |= WQE_WRFLAG_REQ_SIGNAL_COM; + + if (send_wr->opcode == IB_WR_SEND_WITH_IMM || + send_wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM) { + /* this might not work as long as HW does not support it */ + wqe_p->immediate_data = be32_to_cpu(send_wr->imm_data); + wqe_p->wr_flag |= WQE_WRFLAG_IMM_DATA_PRESENT; + } + + wqe_p->nr_of_data_seg = send_wr->num_sge; + + switch (qp->qp_type) { + case IB_QPT_SMI: + case IB_QPT_GSI: + /* no break is intential here */ + case IB_QPT_UD: + /* IB 1.2 spec C10-15 compliance */ + if (send_wr->wr.ud.remote_qkey & 0x80000000) + remote_qkey = qp->qkey; + + wqe_p->destination_qp_number = send_wr->wr.ud.remote_qpn << 8; + wqe_p->local_ee_context_qkey = remote_qkey; + if (!send_wr->wr.ud.ah) { + ehca_gen_err("wr.ud.ah is NULL. qp=%p", qp); + return -EINVAL; + } + my_av = container_of(send_wr->wr.ud.ah, struct ehca_av, ib_ah); + wqe_p->u.ud_av.ud_av = my_av->av; + + /* + * omitted check of IB_SEND_INLINE + * since HW does not support it + */ + for (idx = 0; idx < send_wr->num_sge; idx++) { + wqe_p->u.ud_av.sg_list[idx].vaddr = + send_wr->sg_list[idx].addr; + wqe_p->u.ud_av.sg_list[idx].lkey = + send_wr->sg_list[idx].lkey; + wqe_p->u.ud_av.sg_list[idx].length = + send_wr->sg_list[idx].length; + } /* eof for idx */ + if (qp->qp_type == IB_QPT_SMI || + qp->qp_type == IB_QPT_GSI) + wqe_p->u.ud_av.ud_av.pmtu = 1; + if (qp->qp_type == IB_QPT_GSI) { + wqe_p->pkeyi = send_wr->wr.ud.pkey_index; +#ifdef DEBUG_GSI_SEND_WR + trace_send_wr_ud(send_wr); +#endif /* DEBUG_GSI_SEND_WR */ + } + break; + + case IB_QPT_UC: + if (send_wr->send_flags & IB_SEND_FENCE) + wqe_p->wr_flag |= WQE_WRFLAG_FENCE; + /* no break is intentional here */ + case IB_QPT_RC: + /* TODO: atomic not implemented */ + wqe_p->u.nud.remote_virtual_adress = + send_wr->wr.rdma.remote_addr; + wqe_p->u.nud.rkey = send_wr->wr.rdma.rkey; + + /* + * omitted checking of IB_SEND_INLINE + * since HW does not support it + */ + dma_length = 0; + for (idx = 0; idx < send_wr->num_sge; idx++) { + wqe_p->u.nud.sg_list[idx].vaddr = + send_wr->sg_list[idx].addr; + wqe_p->u.nud.sg_list[idx].lkey = + send_wr->sg_list[idx].lkey; + wqe_p->u.nud.sg_list[idx].length = + send_wr->sg_list[idx].length; + dma_length += send_wr->sg_list[idx].length; + } /* eof idx */ + wqe_p->u.nud.atomic_1st_op_dma_len = dma_length; + + break; + + default: + ehca_gen_err("Invalid qptype=%x", qp->qp_type); + return -EINVAL; + } + + if (ehca_debug_level) { + ehca_gen_dbg("SEND WQE written into queue qp=%p ", qp); + ehca_dmp( wqe_p, 16*(6 + wqe_p->nr_of_data_seg), "send wqe"); + } + return 0; +} + +/* map_ib_wc_status converts raw cqe_status to ib_wc_status */ +static inline void map_ib_wc_status(u32 cqe_status, + enum ib_wc_status *wc_status) +{ + if (unlikely(cqe_status & WC_STATUS_ERROR_BIT)) { + switch (cqe_status & 0x3F) { + case 0x01: + case 0x21: + *wc_status = IB_WC_LOC_LEN_ERR; + break; + case 0x02: + case 0x22: + *wc_status = IB_WC_LOC_QP_OP_ERR; + break; + case 0x03: + case 0x23: + *wc_status = IB_WC_LOC_EEC_OP_ERR; + break; + case 0x04: + case 0x24: + *wc_status = IB_WC_LOC_PROT_ERR; + break; + case 0x05: + case 0x25: + *wc_status = IB_WC_WR_FLUSH_ERR; + break; + case 0x06: + *wc_status = IB_WC_MW_BIND_ERR; + break; + case 0x07: /* remote error - look into bits 20:24 */ + switch ((cqe_status + & WC_STATUS_REMOTE_ERROR_FLAGS) >> 11) { + case 0x0: + /* + * PSN Sequence Error! + * couldn't find a matching status! + */ + *wc_status = IB_WC_GENERAL_ERR; + break; + case 0x1: + *wc_status = IB_WC_REM_INV_REQ_ERR; + break; + case 0x2: + *wc_status = IB_WC_REM_ACCESS_ERR; + break; + case 0x3: + *wc_status = IB_WC_REM_OP_ERR; + break; + case 0x4: + *wc_status = IB_WC_REM_INV_RD_REQ_ERR; + break; + } + break; + case 0x08: + *wc_status = IB_WC_RETRY_EXC_ERR; + break; + case 0x09: + *wc_status = IB_WC_RNR_RETRY_EXC_ERR; + break; + case 0x0A: + case 0x2D: + *wc_status = IB_WC_REM_ABORT_ERR; + break; + case 0x0B: + case 0x2E: + *wc_status = IB_WC_INV_EECN_ERR; + break; + case 0x0C: + case 0x2F: + *wc_status = IB_WC_INV_EEC_STATE_ERR; + break; + case 0x0D: + *wc_status = IB_WC_BAD_RESP_ERR; + break; + case 0x10: + /* WQE purged */ + *wc_status = IB_WC_WR_FLUSH_ERR; + break; + default: + *wc_status = IB_WC_FATAL_ERR; + + } + } else + *wc_status = IB_WC_SUCCESS; +} + +int ehca_post_send(struct ib_qp *qp, + struct ib_send_wr *send_wr, + struct ib_send_wr **bad_send_wr) +{ + struct ehca_qp *my_qp = container_of(qp, struct ehca_qp, ib_qp); + struct ib_send_wr *cur_send_wr; + struct ehca_wqe *wqe_p; + int wqe_cnt = 0; + int ret = 0; + unsigned long spl_flags; + + /* LOCK the QUEUE */ + spin_lock_irqsave(&my_qp->spinlock_s, spl_flags); + + /* loop processes list of send reqs */ + for (cur_send_wr = send_wr; cur_send_wr != NULL; + cur_send_wr = cur_send_wr->next) { + u64 start_offset = my_qp->ipz_squeue.current_q_offset; + /* get pointer next to free WQE */ + wqe_p = ipz_qeit_get_inc(&my_qp->ipz_squeue); + if (unlikely(!wqe_p)) { + /* too many posted work requests: queue overflow */ + if (bad_send_wr) + *bad_send_wr = cur_send_wr; + if (wqe_cnt == 0) { + ret = -ENOMEM; + ehca_err(qp->device, "Too many posted WQEs " + "qp_num=%x", qp->qp_num); + } + goto post_send_exit0; + } + /* write a SEND WQE into the QUEUE */ + ret = ehca_write_swqe(my_qp, wqe_p, cur_send_wr); + /* + * if something failed, + * reset the free entry pointer to the start value + */ + if (unlikely(ret)) { + my_qp->ipz_squeue.current_q_offset = start_offset; + *bad_send_wr = cur_send_wr; + if (wqe_cnt == 0) { + ret = -EINVAL; + ehca_err(qp->device, "Could not write WQE " + "qp_num=%x", qp->qp_num); + } + goto post_send_exit0; + } + wqe_cnt++; + ehca_dbg(qp->device, "ehca_qp=%p qp_num=%x wqe_cnt=%d", + my_qp, qp->qp_num, wqe_cnt); + } /* eof for cur_send_wr */ + +post_send_exit0: + /* UNLOCK the QUEUE */ + spin_unlock_irqrestore(&my_qp->spinlock_s, spl_flags); + iosync(); /* serialize GAL register access */ + hipz_update_sqa(my_qp, wqe_cnt); + return ret; +} + +int ehca_post_recv(struct ib_qp *qp, + struct ib_recv_wr *recv_wr, + struct ib_recv_wr **bad_recv_wr) +{ + struct ehca_qp *my_qp = container_of(qp, struct ehca_qp, ib_qp); + struct ib_recv_wr *cur_recv_wr; + struct ehca_wqe *wqe_p; + int wqe_cnt = 0; + int ret = 0; + unsigned long spl_flags; + + /* LOCK the QUEUE */ + spin_lock_irqsave(&my_qp->spinlock_r, spl_flags); + + /* loop processes list of send reqs */ + for (cur_recv_wr = recv_wr; cur_recv_wr != NULL; + cur_recv_wr = cur_recv_wr->next) { + u64 start_offset = my_qp->ipz_rqueue.current_q_offset; + /* get pointer next to free WQE */ + wqe_p = ipz_qeit_get_inc(&my_qp->ipz_rqueue); + if (unlikely(!wqe_p)) { + /* too many posted work requests: queue overflow */ + if (bad_recv_wr) + *bad_recv_wr = cur_recv_wr; + if (wqe_cnt == 0) { + ret = -ENOMEM; + ehca_err(qp->device, "Too many posted WQEs " + "qp_num=%x", qp->qp_num); + } + goto post_recv_exit0; + } + /* write a RECV WQE into the QUEUE */ + ret = ehca_write_rwqe(&my_qp->ipz_rqueue, wqe_p, cur_recv_wr); + /* + * if something failed, + * reset the free entry pointer to the start value + */ + if (unlikely(ret)) { + my_qp->ipz_rqueue.current_q_offset = start_offset; + *bad_recv_wr = cur_recv_wr; + if (wqe_cnt == 0) { + ret = -EINVAL; + ehca_err(qp->device, "Could not write WQE " + "qp_num=%x", qp->qp_num); + } + goto post_recv_exit0; + } + wqe_cnt++; + ehca_gen_dbg("ehca_qp=%p qp_num=%x wqe_cnt=%d", + my_qp, qp->qp_num, wqe_cnt); + } /* eof for cur_recv_wr */ + +post_recv_exit0: + spin_unlock_irqrestore(&my_qp->spinlock_r, spl_flags); + iosync(); /* serialize GAL register access */ + hipz_update_rqa(my_qp, wqe_cnt); + return ret; +} + +/* + * ib_wc_opcode table converts ehca wc opcode to ib + * Since we use zero to indicate invalid opcode, the actual ib opcode must + * be decremented!!! + */ +static const u8 ib_wc_opcode[255] = { + [0x01] = IB_WC_RECV+1, + [0x02] = IB_WC_RECV_RDMA_WITH_IMM+1, + [0x04] = IB_WC_BIND_MW+1, + [0x08] = IB_WC_FETCH_ADD+1, + [0x10] = IB_WC_COMP_SWAP+1, + [0x20] = IB_WC_RDMA_WRITE+1, + [0x40] = IB_WC_RDMA_READ+1, + [0x80] = IB_WC_SEND+1 +}; + +/* internal function to poll one entry of cq */ +static inline int ehca_poll_cq_one(struct ib_cq *cq, struct ib_wc *wc) +{ + int ret = 0; + struct ehca_cq *my_cq = container_of(cq, struct ehca_cq, ib_cq); + struct ehca_cqe *cqe; + int cqe_count = 0; + +poll_cq_one_read_cqe: + cqe = (struct ehca_cqe *) + ipz_qeit_get_inc_valid(&my_cq->ipz_queue); + if (!cqe) { + ret = -EAGAIN; + ehca_dbg(cq->device, "Completion queue is empty ehca_cq=%p " + "cq_num=%x ret=%x", my_cq, my_cq->cq_number, ret); + goto poll_cq_one_exit0; + } + + /* prevents loads being reordered across this point */ + rmb(); + + cqe_count++; + if (unlikely(cqe->status & WC_STATUS_PURGE_BIT)) { + struct ehca_qp *qp=ehca_cq_get_qp(my_cq, cqe->local_qp_number); + int purgeflag; + unsigned long spl_flags; + if (!qp) { + ehca_err(cq->device, "cq_num=%x qp_num=%x " + "could not find qp -> ignore cqe", + my_cq->cq_number, cqe->local_qp_number); + ehca_dmp(cqe, 64, "cq_num=%x qp_num=%x", + my_cq->cq_number, cqe->local_qp_number); + /* ignore this purged cqe */ + goto poll_cq_one_read_cqe; + } + spin_lock_irqsave(&qp->spinlock_s, spl_flags); + purgeflag = qp->sqerr_purgeflag; + spin_unlock_irqrestore(&qp->spinlock_s, spl_flags); + + if (purgeflag) { + ehca_dbg(cq->device, "Got CQE with purged bit qp_num=%x " + "src_qp=%x", + cqe->local_qp_number, cqe->remote_qp_number); + if (ehca_debug_level) + ehca_dmp(cqe, 64, "qp_num=%x src_qp=%x", + cqe->local_qp_number, + cqe->remote_qp_number); + /* + * ignore this to avoid double cqes of bad wqe + * that caused sqe and turn off purge flag + */ + qp->sqerr_purgeflag = 0; + goto poll_cq_one_read_cqe; + } + } + + /* tracing cqe */ + if (ehca_debug_level) { + ehca_dbg(cq->device, + "Received COMPLETION ehca_cq=%p cq_num=%x -----", + my_cq, my_cq->cq_number); + ehca_dmp(cqe, 64, "ehca_cq=%p cq_num=%x", + my_cq, my_cq->cq_number); + ehca_dbg(cq->device, + "ehca_cq=%p cq_num=%x -------------------------", + my_cq, my_cq->cq_number); + } + + /* we got a completion! */ + wc->wr_id = cqe->work_request_id; + + /* eval ib_wc_opcode */ + wc->opcode = ib_wc_opcode[cqe->optype]-1; + if (unlikely(wc->opcode == -1)) { + ehca_err(cq->device, "Invalid cqe->OPType=%x cqe->status=%x " + "ehca_cq=%p cq_num=%x", + cqe->optype, cqe->status, my_cq, my_cq->cq_number); + /* dump cqe for other infos */ + ehca_dmp(cqe, 64, "ehca_cq=%p cq_num=%x", + my_cq, my_cq->cq_number); + /* update also queue adder to throw away this entry!!! */ + goto poll_cq_one_exit0; + } + /* eval ib_wc_status */ + if (unlikely(cqe->status & WC_STATUS_ERROR_BIT)) { + /* complete with errors */ + map_ib_wc_status(cqe->status, &wc->status); + wc->vendor_err = wc->status; + } else + wc->status = IB_WC_SUCCESS; + + wc->qp_num = cqe->local_qp_number; + wc->byte_len = cqe->nr_bytes_transferred; + wc->pkey_index = cqe->pkey_index; + wc->slid = cqe->rlid; + wc->dlid_path_bits = cqe->dlid; + wc->src_qp = cqe->remote_qp_number; + wc->wc_flags = cqe->w_completion_flags; + wc->imm_data = cpu_to_be32(cqe->immediate_data); + wc->sl = cqe->service_level; + + if (wc->status != IB_WC_SUCCESS) + ehca_dbg(cq->device, + "ehca_cq=%p cq_num=%x WARNING unsuccessful cqe " + "OPType=%x status=%x qp_num=%x src_qp=%x wr_id=%lx " + "cqe=%p", my_cq, my_cq->cq_number, cqe->optype, + cqe->status, cqe->local_qp_number, + cqe->remote_qp_number, cqe->work_request_id, cqe); + +poll_cq_one_exit0: + if (cqe_count > 0) + hipz_update_feca(my_cq, cqe_count); + + return ret; +} + +int ehca_poll_cq(struct ib_cq *cq, int num_entries, struct ib_wc *wc) +{ + struct ehca_cq *my_cq = container_of(cq, struct ehca_cq, ib_cq); + int nr; + struct ib_wc *current_wc = wc; + int ret = 0; + unsigned long spl_flags; + + if (num_entries < 1) { + ehca_err(cq->device, "Invalid num_entries=%d ehca_cq=%p " + "cq_num=%x", num_entries, my_cq, my_cq->cq_number); + ret = -EINVAL; + goto poll_cq_exit0; + } + + spin_lock_irqsave(&my_cq->spinlock, spl_flags); + for (nr = 0; nr < num_entries; nr++) { + ret = ehca_poll_cq_one(cq, current_wc); + if (ret) + break; + current_wc++; + } /* eof for nr */ + spin_unlock_irqrestore(&my_cq->spinlock, spl_flags); + if (ret == -EAGAIN || !ret) + ret = nr; + +poll_cq_exit0: + return ret; +} + +int ehca_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify cq_notify) +{ + struct ehca_cq *my_cq = container_of(cq, struct ehca_cq, ib_cq); + + switch (cq_notify) { + case IB_CQ_SOLICITED: + hipz_set_cqx_n0(my_cq, 1); + break; + case IB_CQ_NEXT_COMP: + hipz_set_cqx_n1(my_cq, 1); + break; + default: + return -EINVAL; + } + + return 0; +} diff --git a/drivers/infiniband/hw/ehca/ehca_sqp.c b/drivers/infiniband/hw/ehca/ehca_sqp.c new file mode 100644 index 00000000000..9f16e9c7939 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_sqp.c @@ -0,0 +1,111 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * SQP functions + * + * Authors: Khadija Souissi + * Heiko J Schick + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + + +#include +#include +#include "ehca_classes.h" +#include "ehca_tools.h" +#include "ehca_qes.h" +#include "ehca_iverbs.h" +#include "hcp_if.h" + + +/** + * ehca_define_sqp - Defines special queue pair 1 (GSI QP). When special queue + * pair is created successfully, the corresponding port gets active. + * + * Define Special Queue pair 0 (SMI QP) is still not supported. + * + * @qp_init_attr: Queue pair init attributes with port and queue pair type + */ + +u64 ehca_define_sqp(struct ehca_shca *shca, + struct ehca_qp *ehca_qp, + struct ib_qp_init_attr *qp_init_attr) +{ + u32 pma_qp_nr, bma_qp_nr; + u64 ret; + u8 port = qp_init_attr->port_num; + int counter; + + shca->sport[port - 1].port_state = IB_PORT_DOWN; + + switch (qp_init_attr->qp_type) { + case IB_QPT_SMI: + /* function not supported yet */ + break; + case IB_QPT_GSI: + ret = hipz_h_define_aqp1(shca->ipz_hca_handle, + ehca_qp->ipz_qp_handle, + ehca_qp->galpas.kernel, + (u32) qp_init_attr->port_num, + &pma_qp_nr, &bma_qp_nr); + + if (ret != H_SUCCESS) { + ehca_err(&shca->ib_device, + "Can't define AQP1 for port %x. rc=%lx", + port, ret); + return ret; + } + break; + default: + ehca_err(&shca->ib_device, "invalid qp_type=%x", + qp_init_attr->qp_type); + return H_PARAMETER; + } + + for (counter = 0; + shca->sport[port - 1].port_state != IB_PORT_ACTIVE && + counter < ehca_port_act_time; + counter++) { + ehca_dbg(&shca->ib_device, "... wait until port %x is active", + port); + msleep_interruptible(1000); + } + + if (counter == ehca_port_act_time) { + ehca_err(&shca->ib_device, "Port %x is not active.", port); + return H_HARDWARE; + } + + return H_SUCCESS; +} diff --git a/drivers/infiniband/hw/ehca/ehca_tools.h b/drivers/infiniband/hw/ehca/ehca_tools.h new file mode 100644 index 00000000000..9f56bb846d9 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_tools.h @@ -0,0 +1,172 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * auxiliary functions + * + * Authors: Christoph Raisch + * Hoang-Nam Nguyen + * Khadija Souissi + * Waleri Fomin + * Heiko J Schick + * + * Copyright (c) 2005 IBM Corporation + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + + +#ifndef EHCA_TOOLS_H +#define EHCA_TOOLS_H + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +extern int ehca_debug_level; + +#define ehca_dbg(ib_dev, format, arg...) \ + do { \ + if (unlikely(ehca_debug_level)) \ + dev_printk(KERN_DEBUG, (ib_dev)->dma_device, \ + "PU%04x EHCA_DBG:%s " format "\n", \ + get_paca()->paca_index, __FUNCTION__, \ + ## arg); \ + } while (0) + +#define ehca_info(ib_dev, format, arg...) \ + dev_info((ib_dev)->dma_device, "PU%04x EHCA_INFO:%s " format "\n", \ + get_paca()->paca_index, __FUNCTION__, ## arg) + +#define ehca_warn(ib_dev, format, arg...) \ + dev_warn((ib_dev)->dma_device, "PU%04x EHCA_WARN:%s " format "\n", \ + get_paca()->paca_index, __FUNCTION__, ## arg) + +#define ehca_err(ib_dev, format, arg...) \ + dev_err((ib_dev)->dma_device, "PU%04x EHCA_ERR:%s " format "\n", \ + get_paca()->paca_index, __FUNCTION__, ## arg) + +/* use this one only if no ib_dev available */ +#define ehca_gen_dbg(format, arg...) \ + do { \ + if (unlikely(ehca_debug_level)) \ + printk(KERN_DEBUG "PU%04x EHCA_DBG:%s " format "\n",\ + get_paca()->paca_index, __FUNCTION__, ## arg); \ + } while (0) + +#define ehca_gen_warn(format, arg...) \ + do { \ + if (unlikely(ehca_debug_level)) \ + printk(KERN_INFO "PU%04x EHCA_WARN:%s " format "\n",\ + get_paca()->paca_index, __FUNCTION__, ## arg); \ + } while (0) + +#define ehca_gen_err(format, arg...) \ + printk(KERN_ERR "PU%04x EHCA_ERR:%s " format "\n", \ + get_paca()->paca_index, __FUNCTION__, ## arg) + +/** + * ehca_dmp - printk a memory block, whose length is n*8 bytes. + * Each line has the following layout: + * adr=X ofs=Y <8 bytes hex> <8 bytes hex> + */ +#define ehca_dmp(adr, len, format, args...) \ + do { \ + unsigned int x; \ + unsigned int l = (unsigned int)(len); \ + unsigned char *deb = (unsigned char*)(adr); \ + for (x = 0; x < l; x += 16) { \ + printk("EHCA_DMP:%s" format \ + " adr=%p ofs=%04x %016lx %016lx\n", \ + __FUNCTION__, ##args, deb, x, \ + *((u64 *)&deb[0]), *((u64 *)&deb[8])); \ + deb += 16; \ + } \ + } while (0) + +/* define a bitmask, little endian version */ +#define EHCA_BMASK(pos,length) (((pos)<<16)+(length)) + +/* define a bitmask, the ibm way... */ +#define EHCA_BMASK_IBM(from,to) (((63-to)<<16)+((to)-(from)+1)) + +/* internal function, don't use */ +#define EHCA_BMASK_SHIFTPOS(mask) (((mask)>>16)&0xffff) + +/* internal function, don't use */ +#define EHCA_BMASK_MASK(mask) (0xffffffffffffffffULL >> ((64-(mask))&0xffff)) + +/** + * EHCA_BMASK_SET - return value shifted and masked by mask + * variable|=EHCA_BMASK_SET(MY_MASK,0x4711) ORs the bits in variable + * variable&=~EHCA_BMASK_SET(MY_MASK,-1) clears the bits from the mask + * in variable + */ +#define EHCA_BMASK_SET(mask,value) \ + ((EHCA_BMASK_MASK(mask) & ((u64)(value)))<>EHCA_BMASK_SHIFTPOS(mask))) + + +/* Converts ehca to ib return code */ +static inline int ehca2ib_return_code(u64 ehca_rc) +{ + switch (ehca_rc) { + case H_SUCCESS: + return 0; + case H_BUSY: + return -EBUSY; + case H_NO_MEM: + return -ENOMEM; + default: + return -EINVAL; + } +} + + +#endif /* EHCA_TOOLS_H */ diff --git a/drivers/infiniband/hw/ehca/ehca_uverbs.c b/drivers/infiniband/hw/ehca/ehca_uverbs.c new file mode 100644 index 00000000000..e08764e4aef --- /dev/null +++ b/drivers/infiniband/hw/ehca/ehca_uverbs.c @@ -0,0 +1,392 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * userspace support verbs + * + * Authors: Christoph Raisch + * Hoang-Nam Nguyen + * Heiko J Schick + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include + +#include "ehca_classes.h" +#include "ehca_iverbs.h" +#include "ehca_mrmw.h" +#include "ehca_tools.h" +#include "hcp_if.h" + +struct ib_ucontext *ehca_alloc_ucontext(struct ib_device *device, + struct ib_udata *udata) +{ + struct ehca_ucontext *my_context; + + my_context = kzalloc(sizeof *my_context, GFP_KERNEL); + if (!my_context) { + ehca_err(device, "Out of memory device=%p", device); + return ERR_PTR(-ENOMEM); + } + + return &my_context->ib_ucontext; +} + +int ehca_dealloc_ucontext(struct ib_ucontext *context) +{ + kfree(container_of(context, struct ehca_ucontext, ib_ucontext)); + return 0; +} + +struct page *ehca_nopage(struct vm_area_struct *vma, + unsigned long address, int *type) +{ + struct page *mypage = NULL; + u64 fileoffset = vma->vm_pgoff << PAGE_SHIFT; + u32 idr_handle = fileoffset >> 32; + u32 q_type = (fileoffset >> 28) & 0xF; /* CQ, QP,... */ + u32 rsrc_type = (fileoffset >> 24) & 0xF; /* sq,rq,cmnd_window */ + u32 cur_pid = current->tgid; + unsigned long flags; + struct ehca_cq *cq; + struct ehca_qp *qp; + struct ehca_pd *pd; + u64 offset; + void *vaddr; + + switch (q_type) { + case 1: /* CQ */ + spin_lock_irqsave(&ehca_cq_idr_lock, flags); + cq = idr_find(&ehca_cq_idr, idr_handle); + spin_unlock_irqrestore(&ehca_cq_idr_lock, flags); + + /* make sure this mmap really belongs to the authorized user */ + if (!cq) { + ehca_gen_err("cq is NULL ret=NOPAGE_SIGBUS"); + return NOPAGE_SIGBUS; + } + + if (cq->ownpid != cur_pid) { + ehca_err(cq->ib_cq.device, + "Invalid caller pid=%x ownpid=%x", + cur_pid, cq->ownpid); + return NOPAGE_SIGBUS; + } + + if (rsrc_type == 2) { + ehca_dbg(cq->ib_cq.device, "cq=%p cq queuearea", cq); + offset = address - vma->vm_start; + vaddr = ipz_qeit_calc(&cq->ipz_queue, offset); + ehca_dbg(cq->ib_cq.device, "offset=%lx vaddr=%p", + offset, vaddr); + mypage = virt_to_page(vaddr); + } + break; + + case 2: /* QP */ + spin_lock_irqsave(&ehca_qp_idr_lock, flags); + qp = idr_find(&ehca_qp_idr, idr_handle); + spin_unlock_irqrestore(&ehca_qp_idr_lock, flags); + + /* make sure this mmap really belongs to the authorized user */ + if (!qp) { + ehca_gen_err("qp is NULL ret=NOPAGE_SIGBUS"); + return NOPAGE_SIGBUS; + } + + pd = container_of(qp->ib_qp.pd, struct ehca_pd, ib_pd); + if (pd->ownpid != cur_pid) { + ehca_err(qp->ib_qp.device, + "Invalid caller pid=%x ownpid=%x", + cur_pid, pd->ownpid); + return NOPAGE_SIGBUS; + } + + if (rsrc_type == 2) { /* rqueue */ + ehca_dbg(qp->ib_qp.device, "qp=%p qp rqueuearea", qp); + offset = address - vma->vm_start; + vaddr = ipz_qeit_calc(&qp->ipz_rqueue, offset); + ehca_dbg(qp->ib_qp.device, "offset=%lx vaddr=%p", + offset, vaddr); + mypage = virt_to_page(vaddr); + } else if (rsrc_type == 3) { /* squeue */ + ehca_dbg(qp->ib_qp.device, "qp=%p qp squeuearea", qp); + offset = address - vma->vm_start; + vaddr = ipz_qeit_calc(&qp->ipz_squeue, offset); + ehca_dbg(qp->ib_qp.device, "offset=%lx vaddr=%p", + offset, vaddr); + mypage = virt_to_page(vaddr); + } + break; + + default: + ehca_gen_err("bad queue type %x", q_type); + return NOPAGE_SIGBUS; + } + + if (!mypage) { + ehca_gen_err("Invalid page adr==NULL ret=NOPAGE_SIGBUS"); + return NOPAGE_SIGBUS; + } + get_page(mypage); + + return mypage; +} + +static struct vm_operations_struct ehcau_vm_ops = { + .nopage = ehca_nopage, +}; + +int ehca_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) +{ + u64 fileoffset = vma->vm_pgoff << PAGE_SHIFT; + u32 idr_handle = fileoffset >> 32; + u32 q_type = (fileoffset >> 28) & 0xF; /* CQ, QP,... */ + u32 rsrc_type = (fileoffset >> 24) & 0xF; /* sq,rq,cmnd_window */ + u32 cur_pid = current->tgid; + u32 ret; + u64 vsize, physical; + unsigned long flags; + struct ehca_cq *cq; + struct ehca_qp *qp; + struct ehca_pd *pd; + + switch (q_type) { + case 1: /* CQ */ + spin_lock_irqsave(&ehca_cq_idr_lock, flags); + cq = idr_find(&ehca_cq_idr, idr_handle); + spin_unlock_irqrestore(&ehca_cq_idr_lock, flags); + + /* make sure this mmap really belongs to the authorized user */ + if (!cq) + return -EINVAL; + + if (cq->ownpid != cur_pid) { + ehca_err(cq->ib_cq.device, + "Invalid caller pid=%x ownpid=%x", + cur_pid, cq->ownpid); + return -ENOMEM; + } + + if (!cq->ib_cq.uobject || cq->ib_cq.uobject->context != context) + return -EINVAL; + + switch (rsrc_type) { + case 1: /* galpa fw handle */ + ehca_dbg(cq->ib_cq.device, "cq=%p cq triggerarea", cq); + vma->vm_flags |= VM_RESERVED; + vsize = vma->vm_end - vma->vm_start; + if (vsize != EHCA_PAGESIZE) { + ehca_err(cq->ib_cq.device, "invalid vsize=%lx", + vma->vm_end - vma->vm_start); + return -EINVAL; + } + + physical = cq->galpas.user.fw_handle; + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + vma->vm_flags |= VM_IO | VM_RESERVED; + + ehca_dbg(cq->ib_cq.device, + "vsize=%lx physical=%lx", vsize, physical); + ret = remap_pfn_range(vma, vma->vm_start, + physical >> PAGE_SHIFT, vsize, + vma->vm_page_prot); + if (ret) { + ehca_err(cq->ib_cq.device, + "remap_pfn_range() failed ret=%x", + ret); + return -ENOMEM; + } + break; + + case 2: /* cq queue_addr */ + ehca_dbg(cq->ib_cq.device, "cq=%p cq q_addr", cq); + vma->vm_flags |= VM_RESERVED; + vma->vm_ops = &ehcau_vm_ops; + break; + + default: + ehca_err(cq->ib_cq.device, "bad resource type %x", + rsrc_type); + return -EINVAL; + } + break; + + case 2: /* QP */ + spin_lock_irqsave(&ehca_qp_idr_lock, flags); + qp = idr_find(&ehca_qp_idr, idr_handle); + spin_unlock_irqrestore(&ehca_qp_idr_lock, flags); + + /* make sure this mmap really belongs to the authorized user */ + if (!qp) + return -EINVAL; + + pd = container_of(qp->ib_qp.pd, struct ehca_pd, ib_pd); + if (pd->ownpid != cur_pid) { + ehca_err(qp->ib_qp.device, + "Invalid caller pid=%x ownpid=%x", + cur_pid, pd->ownpid); + return -ENOMEM; + } + + if (!qp->ib_qp.uobject || qp->ib_qp.uobject->context != context) + return -EINVAL; + + switch (rsrc_type) { + case 1: /* galpa fw handle */ + ehca_dbg(qp->ib_qp.device, "qp=%p qp triggerarea", qp); + vma->vm_flags |= VM_RESERVED; + vsize = vma->vm_end - vma->vm_start; + if (vsize != EHCA_PAGESIZE) { + ehca_err(qp->ib_qp.device, "invalid vsize=%lx", + vma->vm_end - vma->vm_start); + return -EINVAL; + } + + physical = qp->galpas.user.fw_handle; + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + vma->vm_flags |= VM_IO | VM_RESERVED; + + ehca_dbg(qp->ib_qp.device, "vsize=%lx physical=%lx", + vsize, physical); + ret = remap_pfn_range(vma, vma->vm_start, + physical >> PAGE_SHIFT, vsize, + vma->vm_page_prot); + if (ret) { + ehca_err(qp->ib_qp.device, + "remap_pfn_range() failed ret=%x", + ret); + return -ENOMEM; + } + break; + + case 2: /* qp rqueue_addr */ + ehca_dbg(qp->ib_qp.device, "qp=%p qp rqueue_addr", qp); + vma->vm_flags |= VM_RESERVED; + vma->vm_ops = &ehcau_vm_ops; + break; + + case 3: /* qp squeue_addr */ + ehca_dbg(qp->ib_qp.device, "qp=%p qp squeue_addr", qp); + vma->vm_flags |= VM_RESERVED; + vma->vm_ops = &ehcau_vm_ops; + break; + + default: + ehca_err(qp->ib_qp.device, "bad resource type %x", + rsrc_type); + return -EINVAL; + } + break; + + default: + ehca_gen_err("bad queue type %x", q_type); + return -EINVAL; + } + + return 0; +} + +int ehca_mmap_nopage(u64 foffset, u64 length, void **mapped, + struct vm_area_struct **vma) +{ + down_write(¤t->mm->mmap_sem); + *mapped = (void*)do_mmap(NULL,0, length, PROT_WRITE, + MAP_SHARED | MAP_ANONYMOUS, + foffset); + up_write(¤t->mm->mmap_sem); + if (!(*mapped)) { + ehca_gen_err("couldn't mmap foffset=%lx length=%lx", + foffset, length); + return -EINVAL; + } + + *vma = find_vma(current->mm, (u64)*mapped); + if (!(*vma)) { + down_write(¤t->mm->mmap_sem); + do_munmap(current->mm, 0, length); + up_write(¤t->mm->mmap_sem); + ehca_gen_err("couldn't find vma queue=%p", *mapped); + return -EINVAL; + } + (*vma)->vm_flags |= VM_RESERVED; + (*vma)->vm_ops = &ehcau_vm_ops; + + return 0; +} + +int ehca_mmap_register(u64 physical, void **mapped, + struct vm_area_struct **vma) +{ + int ret; + unsigned long vsize; + /* ehca hw supports only 4k page */ + ret = ehca_mmap_nopage(0, EHCA_PAGESIZE, mapped, vma); + if (ret) { + ehca_gen_err("could'nt mmap physical=%lx", physical); + return ret; + } + + (*vma)->vm_flags |= VM_RESERVED; + vsize = (*vma)->vm_end - (*vma)->vm_start; + if (vsize != EHCA_PAGESIZE) { + ehca_gen_err("invalid vsize=%lx", + (*vma)->vm_end - (*vma)->vm_start); + return -EINVAL; + } + + (*vma)->vm_page_prot = pgprot_noncached((*vma)->vm_page_prot); + (*vma)->vm_flags |= VM_IO | VM_RESERVED; + + ret = remap_pfn_range((*vma), (*vma)->vm_start, + physical >> PAGE_SHIFT, vsize, + (*vma)->vm_page_prot); + if (ret) { + ehca_gen_err("remap_pfn_range() failed ret=%x", ret); + return -ENOMEM; + } + + return 0; + +} + +int ehca_munmap(unsigned long addr, size_t len) { + int ret = 0; + struct mm_struct *mm = current->mm; + if (mm) { + down_write(&mm->mmap_sem); + ret = do_munmap(mm, addr, len); + up_write(&mm->mmap_sem); + } + return ret; +} diff --git a/drivers/infiniband/hw/ehca/hcp_if.c b/drivers/infiniband/hw/ehca/hcp_if.c new file mode 100644 index 00000000000..3fb46e67df8 --- /dev/null +++ b/drivers/infiniband/hw/ehca/hcp_if.c @@ -0,0 +1,874 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * Firmware Infiniband Interface code for POWER + * + * Authors: Christoph Raisch + * Hoang-Nam Nguyen + * Gerd Bayer + * Waleri Fomin + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include "ehca_tools.h" +#include "hcp_if.h" +#include "hcp_phyp.h" +#include "hipz_fns.h" +#include "ipz_pt_fn.h" + +#define H_ALL_RES_QP_ENHANCED_OPS EHCA_BMASK_IBM(9, 11) +#define H_ALL_RES_QP_PTE_PIN EHCA_BMASK_IBM(12, 12) +#define H_ALL_RES_QP_SERVICE_TYPE EHCA_BMASK_IBM(13, 15) +#define H_ALL_RES_QP_LL_RQ_CQE_POSTING EHCA_BMASK_IBM(18, 18) +#define H_ALL_RES_QP_LL_SQ_CQE_POSTING EHCA_BMASK_IBM(19, 21) +#define H_ALL_RES_QP_SIGNALING_TYPE EHCA_BMASK_IBM(22, 23) +#define H_ALL_RES_QP_UD_AV_LKEY_CTRL EHCA_BMASK_IBM(31, 31) +#define H_ALL_RES_QP_RESOURCE_TYPE EHCA_BMASK_IBM(56, 63) + +#define H_ALL_RES_QP_MAX_OUTST_SEND_WR EHCA_BMASK_IBM(0, 15) +#define H_ALL_RES_QP_MAX_OUTST_RECV_WR EHCA_BMASK_IBM(16, 31) +#define H_ALL_RES_QP_MAX_SEND_SGE EHCA_BMASK_IBM(32, 39) +#define H_ALL_RES_QP_MAX_RECV_SGE EHCA_BMASK_IBM(40, 47) + +#define H_ALL_RES_QP_ACT_OUTST_SEND_WR EHCA_BMASK_IBM(16, 31) +#define H_ALL_RES_QP_ACT_OUTST_RECV_WR EHCA_BMASK_IBM(48, 63) +#define H_ALL_RES_QP_ACT_SEND_SGE EHCA_BMASK_IBM(8, 15) +#define H_ALL_RES_QP_ACT_RECV_SGE EHCA_BMASK_IBM(24, 31) + +#define H_ALL_RES_QP_SQUEUE_SIZE_PAGES EHCA_BMASK_IBM(0, 31) +#define H_ALL_RES_QP_RQUEUE_SIZE_PAGES EHCA_BMASK_IBM(32, 63) + +/* direct access qp controls */ +#define DAQP_CTRL_ENABLE 0x01 +#define DAQP_CTRL_SEND_COMP 0x20 +#define DAQP_CTRL_RECV_COMP 0x40 + +static u32 get_longbusy_msecs(int longbusy_rc) +{ + switch (longbusy_rc) { + case H_LONG_BUSY_ORDER_1_MSEC: + return 1; + case H_LONG_BUSY_ORDER_10_MSEC: + return 10; + case H_LONG_BUSY_ORDER_100_MSEC: + return 100; + case H_LONG_BUSY_ORDER_1_SEC: + return 1000; + case H_LONG_BUSY_ORDER_10_SEC: + return 10000; + case H_LONG_BUSY_ORDER_100_SEC: + return 100000; + default: + return 1; + } +} + +static long ehca_plpar_hcall_norets(unsigned long opcode, + unsigned long arg1, + unsigned long arg2, + unsigned long arg3, + unsigned long arg4, + unsigned long arg5, + unsigned long arg6, + unsigned long arg7) +{ + long ret; + int i, sleep_msecs; + + ehca_gen_dbg("opcode=%lx arg1=%lx arg2=%lx arg3=%lx arg4=%lx " + "arg5=%lx arg6=%lx arg7=%lx", + opcode, arg1, arg2, arg3, arg4, arg5, arg6, arg7); + + for (i = 0; i < 5; i++) { + ret = plpar_hcall_norets(opcode, arg1, arg2, arg3, arg4, + arg5, arg6, arg7); + + if (H_IS_LONG_BUSY(ret)) { + sleep_msecs = get_longbusy_msecs(ret); + msleep_interruptible(sleep_msecs); + continue; + } + + if (ret < H_SUCCESS) + ehca_gen_err("opcode=%lx ret=%lx" + " arg1=%lx arg2=%lx arg3=%lx arg4=%lx" + " arg5=%lx arg6=%lx arg7=%lx ", + opcode, ret, + arg1, arg2, arg3, arg4, arg5, + arg6, arg7); + + ehca_gen_dbg("opcode=%lx ret=%lx", opcode, ret); + return ret; + + } + + return H_BUSY; +} + +static long ehca_plpar_hcall9(unsigned long opcode, + unsigned long *outs, /* array of 9 outputs */ + unsigned long arg1, + unsigned long arg2, + unsigned long arg3, + unsigned long arg4, + unsigned long arg5, + unsigned long arg6, + unsigned long arg7, + unsigned long arg8, + unsigned long arg9) +{ + long ret; + int i, sleep_msecs; + + ehca_gen_dbg("opcode=%lx arg1=%lx arg2=%lx arg3=%lx arg4=%lx " + "arg5=%lx arg6=%lx arg7=%lx arg8=%lx arg9=%lx", + opcode, arg1, arg2, arg3, arg4, arg5, arg6, arg7, + arg8, arg9); + + for (i = 0; i < 5; i++) { + ret = plpar_hcall9(opcode, outs, + arg1, arg2, arg3, arg4, arg5, + arg6, arg7, arg8, arg9); + + if (H_IS_LONG_BUSY(ret)) { + sleep_msecs = get_longbusy_msecs(ret); + msleep_interruptible(sleep_msecs); + continue; + } + + if (ret < H_SUCCESS) + ehca_gen_err("opcode=%lx ret=%lx" + " arg1=%lx arg2=%lx arg3=%lx arg4=%lx" + " arg5=%lx arg6=%lx arg7=%lx arg8=%lx" + " arg9=%lx" + " out1=%lx out2=%lx out3=%lx out4=%lx" + " out5=%lx out6=%lx out7=%lx out8=%lx" + " out9=%lx", + opcode, ret, + arg1, arg2, arg3, arg4, arg5, + arg6, arg7, arg8, arg9, + outs[0], outs[1], outs[2], outs[3], + outs[4], outs[5], outs[6], outs[7], + outs[8]); + + ehca_gen_dbg("opcode=%lx ret=%lx out1=%lx out2=%lx out3=%lx " + "out4=%lx out5=%lx out6=%lx out7=%lx out8=%lx " + "out9=%lx", + opcode, ret, outs[0], outs[1], outs[2], outs[3], + outs[4], outs[5], outs[6], outs[7], outs[8]); + return ret; + + } + + return H_BUSY; +} +u64 hipz_h_alloc_resource_eq(const struct ipz_adapter_handle adapter_handle, + struct ehca_pfeq *pfeq, + const u32 neq_control, + const u32 number_of_entries, + struct ipz_eq_handle *eq_handle, + u32 *act_nr_of_entries, + u32 *act_pages, + u32 *eq_ist) +{ + u64 ret; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + u64 allocate_controls; + + /* resource type */ + allocate_controls = 3ULL; + + /* ISN is associated */ + if (neq_control != 1) + allocate_controls = (1ULL << (63 - 7)) | allocate_controls; + else /* notification event queue */ + allocate_controls = (1ULL << 63) | allocate_controls; + + ret = ehca_plpar_hcall9(H_ALLOC_RESOURCE, outs, + adapter_handle.handle, /* r4 */ + allocate_controls, /* r5 */ + number_of_entries, /* r6 */ + 0, 0, 0, 0, 0, 0); + eq_handle->handle = outs[0]; + *act_nr_of_entries = (u32)outs[3]; + *act_pages = (u32)outs[4]; + *eq_ist = (u32)outs[5]; + + if (ret == H_NOT_ENOUGH_RESOURCES) + ehca_gen_err("Not enough resource - ret=%lx ", ret); + + return ret; +} + +u64 hipz_h_reset_event(const struct ipz_adapter_handle adapter_handle, + struct ipz_eq_handle eq_handle, + const u64 event_mask) +{ + return ehca_plpar_hcall_norets(H_RESET_EVENTS, + adapter_handle.handle, /* r4 */ + eq_handle.handle, /* r5 */ + event_mask, /* r6 */ + 0, 0, 0, 0); +} + +u64 hipz_h_alloc_resource_cq(const struct ipz_adapter_handle adapter_handle, + struct ehca_cq *cq, + struct ehca_alloc_cq_parms *param) +{ + u64 ret; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + + ret = ehca_plpar_hcall9(H_ALLOC_RESOURCE, outs, + adapter_handle.handle, /* r4 */ + 2, /* r5 */ + param->eq_handle.handle, /* r6 */ + cq->token, /* r7 */ + param->nr_cqe, /* r8 */ + 0, 0, 0, 0); + cq->ipz_cq_handle.handle = outs[0]; + param->act_nr_of_entries = (u32)outs[3]; + param->act_pages = (u32)outs[4]; + + if (ret == H_SUCCESS) + hcp_galpas_ctor(&cq->galpas, outs[5], outs[6]); + + if (ret == H_NOT_ENOUGH_RESOURCES) + ehca_gen_err("Not enough resources. ret=%lx", ret); + + return ret; +} + +u64 hipz_h_alloc_resource_qp(const struct ipz_adapter_handle adapter_handle, + struct ehca_qp *qp, + struct ehca_alloc_qp_parms *parms) +{ + u64 ret; + u64 allocate_controls; + u64 max_r10_reg; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + u16 max_nr_receive_wqes = qp->init_attr.cap.max_recv_wr + 1; + u16 max_nr_send_wqes = qp->init_attr.cap.max_send_wr + 1; + int daqp_ctrl = parms->daqp_ctrl; + + allocate_controls = + EHCA_BMASK_SET(H_ALL_RES_QP_ENHANCED_OPS, + (daqp_ctrl & DAQP_CTRL_ENABLE) ? 1 : 0) + | EHCA_BMASK_SET(H_ALL_RES_QP_PTE_PIN, 0) + | EHCA_BMASK_SET(H_ALL_RES_QP_SERVICE_TYPE, parms->servicetype) + | EHCA_BMASK_SET(H_ALL_RES_QP_SIGNALING_TYPE, parms->sigtype) + | EHCA_BMASK_SET(H_ALL_RES_QP_LL_RQ_CQE_POSTING, + (daqp_ctrl & DAQP_CTRL_RECV_COMP) ? 1 : 0) + | EHCA_BMASK_SET(H_ALL_RES_QP_LL_SQ_CQE_POSTING, + (daqp_ctrl & DAQP_CTRL_SEND_COMP) ? 1 : 0) + | EHCA_BMASK_SET(H_ALL_RES_QP_UD_AV_LKEY_CTRL, + parms->ud_av_l_key_ctl) + | EHCA_BMASK_SET(H_ALL_RES_QP_RESOURCE_TYPE, 1); + + max_r10_reg = + EHCA_BMASK_SET(H_ALL_RES_QP_MAX_OUTST_SEND_WR, + max_nr_send_wqes) + | EHCA_BMASK_SET(H_ALL_RES_QP_MAX_OUTST_RECV_WR, + max_nr_receive_wqes) + | EHCA_BMASK_SET(H_ALL_RES_QP_MAX_SEND_SGE, + parms->max_send_sge) + | EHCA_BMASK_SET(H_ALL_RES_QP_MAX_RECV_SGE, + parms->max_recv_sge); + + ret = ehca_plpar_hcall9(H_ALLOC_RESOURCE, outs, + adapter_handle.handle, /* r4 */ + allocate_controls, /* r5 */ + qp->send_cq->ipz_cq_handle.handle, + qp->recv_cq->ipz_cq_handle.handle, + parms->ipz_eq_handle.handle, + ((u64)qp->token << 32) | parms->pd.value, + max_r10_reg, /* r10 */ + parms->ud_av_l_key_ctl, /* r11 */ + 0); + qp->ipz_qp_handle.handle = outs[0]; + qp->real_qp_num = (u32)outs[1]; + parms->act_nr_send_sges = + (u16)EHCA_BMASK_GET(H_ALL_RES_QP_ACT_OUTST_SEND_WR, outs[2]); + parms->act_nr_recv_wqes = + (u16)EHCA_BMASK_GET(H_ALL_RES_QP_ACT_OUTST_RECV_WR, outs[2]); + parms->act_nr_send_sges = + (u8)EHCA_BMASK_GET(H_ALL_RES_QP_ACT_SEND_SGE, outs[3]); + parms->act_nr_recv_sges = + (u8)EHCA_BMASK_GET(H_ALL_RES_QP_ACT_RECV_SGE, outs[3]); + parms->nr_sq_pages = + (u32)EHCA_BMASK_GET(H_ALL_RES_QP_SQUEUE_SIZE_PAGES, outs[4]); + parms->nr_rq_pages = + (u32)EHCA_BMASK_GET(H_ALL_RES_QP_RQUEUE_SIZE_PAGES, outs[4]); + + if (ret == H_SUCCESS) + hcp_galpas_ctor(&qp->galpas, outs[6], outs[6]); + + if (ret == H_NOT_ENOUGH_RESOURCES) + ehca_gen_err("Not enough resources. ret=%lx", ret); + + return ret; +} + +u64 hipz_h_query_port(const struct ipz_adapter_handle adapter_handle, + const u8 port_id, + struct hipz_query_port *query_port_response_block) +{ + u64 ret; + u64 r_cb = virt_to_abs(query_port_response_block); + + if (r_cb & (EHCA_PAGESIZE-1)) { + ehca_gen_err("response block not page aligned"); + return H_PARAMETER; + } + + ret = ehca_plpar_hcall_norets(H_QUERY_PORT, + adapter_handle.handle, /* r4 */ + port_id, /* r5 */ + r_cb, /* r6 */ + 0, 0, 0, 0); + + if (ehca_debug_level) + ehca_dmp(query_port_response_block, 64, "response_block"); + + return ret; +} + +u64 hipz_h_query_hca(const struct ipz_adapter_handle adapter_handle, + struct hipz_query_hca *query_hca_rblock) +{ + u64 r_cb = virt_to_abs(query_hca_rblock); + + if (r_cb & (EHCA_PAGESIZE-1)) { + ehca_gen_err("response_block=%p not page aligned", + query_hca_rblock); + return H_PARAMETER; + } + + return ehca_plpar_hcall_norets(H_QUERY_HCA, + adapter_handle.handle, /* r4 */ + r_cb, /* r5 */ + 0, 0, 0, 0, 0); +} + +u64 hipz_h_register_rpage(const struct ipz_adapter_handle adapter_handle, + const u8 pagesize, + const u8 queue_type, + const u64 resource_handle, + const u64 logical_address_of_page, + u64 count) +{ + return ehca_plpar_hcall_norets(H_REGISTER_RPAGES, + adapter_handle.handle, /* r4 */ + queue_type | pagesize << 8, /* r5 */ + resource_handle, /* r6 */ + logical_address_of_page, /* r7 */ + count, /* r8 */ + 0, 0); +} + +u64 hipz_h_register_rpage_eq(const struct ipz_adapter_handle adapter_handle, + const struct ipz_eq_handle eq_handle, + struct ehca_pfeq *pfeq, + const u8 pagesize, + const u8 queue_type, + const u64 logical_address_of_page, + const u64 count) +{ + if (count != 1) { + ehca_gen_err("Ppage counter=%lx", count); + return H_PARAMETER; + } + return hipz_h_register_rpage(adapter_handle, + pagesize, + queue_type, + eq_handle.handle, + logical_address_of_page, count); +} + +u64 hipz_h_query_int_state(const struct ipz_adapter_handle adapter_handle, + u32 ist) +{ + u64 ret; + ret = ehca_plpar_hcall_norets(H_QUERY_INT_STATE, + adapter_handle.handle, /* r4 */ + ist, /* r5 */ + 0, 0, 0, 0, 0); + + if (ret != H_SUCCESS && ret != H_BUSY) + ehca_gen_err("Could not query interrupt state."); + + return ret; +} + +u64 hipz_h_register_rpage_cq(const struct ipz_adapter_handle adapter_handle, + const struct ipz_cq_handle cq_handle, + struct ehca_pfcq *pfcq, + const u8 pagesize, + const u8 queue_type, + const u64 logical_address_of_page, + const u64 count, + const struct h_galpa gal) +{ + if (count != 1) { + ehca_gen_err("Page counter=%lx", count); + return H_PARAMETER; + } + + return hipz_h_register_rpage(adapter_handle, pagesize, queue_type, + cq_handle.handle, logical_address_of_page, + count); +} + +u64 hipz_h_register_rpage_qp(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct ehca_pfqp *pfqp, + const u8 pagesize, + const u8 queue_type, + const u64 logical_address_of_page, + const u64 count, + const struct h_galpa galpa) +{ + if (count != 1) { + ehca_gen_err("Page counter=%lx", count); + return H_PARAMETER; + } + + return hipz_h_register_rpage(adapter_handle,pagesize,queue_type, + qp_handle.handle,logical_address_of_page, + count); +} + +u64 hipz_h_disable_and_get_wqe(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct ehca_pfqp *pfqp, + void **log_addr_next_sq_wqe2processed, + void **log_addr_next_rq_wqe2processed, + int dis_and_get_function_code) +{ + u64 ret; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + + ret = ehca_plpar_hcall9(H_DISABLE_AND_GETC, outs, + adapter_handle.handle, /* r4 */ + dis_and_get_function_code, /* r5 */ + qp_handle.handle, /* r6 */ + 0, 0, 0, 0, 0, 0); + if (log_addr_next_sq_wqe2processed) + *log_addr_next_sq_wqe2processed = (void*)outs[0]; + if (log_addr_next_rq_wqe2processed) + *log_addr_next_rq_wqe2processed = (void*)outs[1]; + + return ret; +} + +u64 hipz_h_modify_qp(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct ehca_pfqp *pfqp, + const u64 update_mask, + struct hcp_modify_qp_control_block *mqpcb, + struct h_galpa gal) +{ + u64 ret; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + ret = ehca_plpar_hcall9(H_MODIFY_QP, outs, + adapter_handle.handle, /* r4 */ + qp_handle.handle, /* r5 */ + update_mask, /* r6 */ + virt_to_abs(mqpcb), /* r7 */ + 0, 0, 0, 0, 0); + + if (ret == H_NOT_ENOUGH_RESOURCES) + ehca_gen_err("Insufficient resources ret=%lx", ret); + + return ret; +} + +u64 hipz_h_query_qp(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct ehca_pfqp *pfqp, + struct hcp_modify_qp_control_block *qqpcb, + struct h_galpa gal) +{ + return ehca_plpar_hcall_norets(H_QUERY_QP, + adapter_handle.handle, /* r4 */ + qp_handle.handle, /* r5 */ + virt_to_abs(qqpcb), /* r6 */ + 0, 0, 0, 0); +} + +u64 hipz_h_destroy_qp(const struct ipz_adapter_handle adapter_handle, + struct ehca_qp *qp) +{ + u64 ret; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + + ret = hcp_galpas_dtor(&qp->galpas); + if (ret) { + ehca_gen_err("Could not destruct qp->galpas"); + return H_RESOURCE; + } + ret = ehca_plpar_hcall9(H_DISABLE_AND_GETC, outs, + adapter_handle.handle, /* r4 */ + /* function code */ + 1, /* r5 */ + qp->ipz_qp_handle.handle, /* r6 */ + 0, 0, 0, 0, 0, 0); + if (ret == H_HARDWARE) + ehca_gen_err("HCA not operational. ret=%lx", ret); + + ret = ehca_plpar_hcall_norets(H_FREE_RESOURCE, + adapter_handle.handle, /* r4 */ + qp->ipz_qp_handle.handle, /* r5 */ + 0, 0, 0, 0, 0); + + if (ret == H_RESOURCE) + ehca_gen_err("Resource still in use. ret=%lx", ret); + + return ret; +} + +u64 hipz_h_define_aqp0(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct h_galpa gal, + u32 port) +{ + return ehca_plpar_hcall_norets(H_DEFINE_AQP0, + adapter_handle.handle, /* r4 */ + qp_handle.handle, /* r5 */ + port, /* r6 */ + 0, 0, 0, 0); +} + +u64 hipz_h_define_aqp1(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct h_galpa gal, + u32 port, u32 * pma_qp_nr, + u32 * bma_qp_nr) +{ + u64 ret; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + + ret = ehca_plpar_hcall9(H_DEFINE_AQP1, outs, + adapter_handle.handle, /* r4 */ + qp_handle.handle, /* r5 */ + port, /* r6 */ + 0, 0, 0, 0, 0, 0); + *pma_qp_nr = (u32)outs[0]; + *bma_qp_nr = (u32)outs[1]; + + if (ret == H_ALIAS_EXIST) + ehca_gen_err("AQP1 already exists. ret=%lx", ret); + + return ret; +} + +u64 hipz_h_attach_mcqp(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct h_galpa gal, + u16 mcg_dlid, + u64 subnet_prefix, u64 interface_id) +{ + u64 ret; + + ret = ehca_plpar_hcall_norets(H_ATTACH_MCQP, + adapter_handle.handle, /* r4 */ + qp_handle.handle, /* r5 */ + mcg_dlid, /* r6 */ + interface_id, /* r7 */ + subnet_prefix, /* r8 */ + 0, 0); + + if (ret == H_NOT_ENOUGH_RESOURCES) + ehca_gen_err("Not enough resources. ret=%lx", ret); + + return ret; +} + +u64 hipz_h_detach_mcqp(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct h_galpa gal, + u16 mcg_dlid, + u64 subnet_prefix, u64 interface_id) +{ + return ehca_plpar_hcall_norets(H_DETACH_MCQP, + adapter_handle.handle, /* r4 */ + qp_handle.handle, /* r5 */ + mcg_dlid, /* r6 */ + interface_id, /* r7 */ + subnet_prefix, /* r8 */ + 0, 0); +} + +u64 hipz_h_destroy_cq(const struct ipz_adapter_handle adapter_handle, + struct ehca_cq *cq, + u8 force_flag) +{ + u64 ret; + + ret = hcp_galpas_dtor(&cq->galpas); + if (ret) { + ehca_gen_err("Could not destruct cp->galpas"); + return H_RESOURCE; + } + + ret = ehca_plpar_hcall_norets(H_FREE_RESOURCE, + adapter_handle.handle, /* r4 */ + cq->ipz_cq_handle.handle, /* r5 */ + force_flag != 0 ? 1L : 0L, /* r6 */ + 0, 0, 0, 0); + + if (ret == H_RESOURCE) + ehca_gen_err("H_FREE_RESOURCE failed ret=%lx ", ret); + + return ret; +} + +u64 hipz_h_destroy_eq(const struct ipz_adapter_handle adapter_handle, + struct ehca_eq *eq) +{ + u64 ret; + + ret = hcp_galpas_dtor(&eq->galpas); + if (ret) { + ehca_gen_err("Could not destruct eq->galpas"); + return H_RESOURCE; + } + + ret = ehca_plpar_hcall_norets(H_FREE_RESOURCE, + adapter_handle.handle, /* r4 */ + eq->ipz_eq_handle.handle, /* r5 */ + 0, 0, 0, 0, 0); + + if (ret == H_RESOURCE) + ehca_gen_err("Resource in use. ret=%lx ", ret); + + return ret; +} + +u64 hipz_h_alloc_resource_mr(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mr *mr, + const u64 vaddr, + const u64 length, + const u32 access_ctrl, + const struct ipz_pd pd, + struct ehca_mr_hipzout_parms *outparms) +{ + u64 ret; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + + ret = ehca_plpar_hcall9(H_ALLOC_RESOURCE, outs, + adapter_handle.handle, /* r4 */ + 5, /* r5 */ + vaddr, /* r6 */ + length, /* r7 */ + (((u64)access_ctrl) << 32ULL), /* r8 */ + pd.value, /* r9 */ + 0, 0, 0); + outparms->handle.handle = outs[0]; + outparms->lkey = (u32)outs[2]; + outparms->rkey = (u32)outs[3]; + + return ret; +} + +u64 hipz_h_register_rpage_mr(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mr *mr, + const u8 pagesize, + const u8 queue_type, + const u64 logical_address_of_page, + const u64 count) +{ + u64 ret; + + if ((count > 1) && (logical_address_of_page & (EHCA_PAGESIZE-1))) { + ehca_gen_err("logical_address_of_page not on a 4k boundary " + "adapter_handle=%lx mr=%p mr_handle=%lx " + "pagesize=%x queue_type=%x " + "logical_address_of_page=%lx count=%lx", + adapter_handle.handle, mr, + mr->ipz_mr_handle.handle, pagesize, queue_type, + logical_address_of_page, count); + ret = H_PARAMETER; + } else + ret = hipz_h_register_rpage(adapter_handle, pagesize, + queue_type, + mr->ipz_mr_handle.handle, + logical_address_of_page, count); + return ret; +} + +u64 hipz_h_query_mr(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mr *mr, + struct ehca_mr_hipzout_parms *outparms) +{ + u64 ret; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + + ret = ehca_plpar_hcall9(H_QUERY_MR, outs, + adapter_handle.handle, /* r4 */ + mr->ipz_mr_handle.handle, /* r5 */ + 0, 0, 0, 0, 0, 0, 0); + outparms->len = outs[0]; + outparms->vaddr = outs[1]; + outparms->acl = outs[4] >> 32; + outparms->lkey = (u32)(outs[5] >> 32); + outparms->rkey = (u32)(outs[5] & (0xffffffff)); + + return ret; +} + +u64 hipz_h_free_resource_mr(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mr *mr) +{ + return ehca_plpar_hcall_norets(H_FREE_RESOURCE, + adapter_handle.handle, /* r4 */ + mr->ipz_mr_handle.handle, /* r5 */ + 0, 0, 0, 0, 0); +} + +u64 hipz_h_reregister_pmr(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mr *mr, + const u64 vaddr_in, + const u64 length, + const u32 access_ctrl, + const struct ipz_pd pd, + const u64 mr_addr_cb, + struct ehca_mr_hipzout_parms *outparms) +{ + u64 ret; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + + ret = ehca_plpar_hcall9(H_REREGISTER_PMR, outs, + adapter_handle.handle, /* r4 */ + mr->ipz_mr_handle.handle, /* r5 */ + vaddr_in, /* r6 */ + length, /* r7 */ + /* r8 */ + ((((u64)access_ctrl) << 32ULL) | pd.value), + mr_addr_cb, /* r9 */ + 0, 0, 0); + outparms->vaddr = outs[1]; + outparms->lkey = (u32)outs[2]; + outparms->rkey = (u32)outs[3]; + + return ret; +} + +u64 hipz_h_register_smr(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mr *mr, + const struct ehca_mr *orig_mr, + const u64 vaddr_in, + const u32 access_ctrl, + const struct ipz_pd pd, + struct ehca_mr_hipzout_parms *outparms) +{ + u64 ret; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + + ret = ehca_plpar_hcall9(H_REGISTER_SMR, outs, + adapter_handle.handle, /* r4 */ + orig_mr->ipz_mr_handle.handle, /* r5 */ + vaddr_in, /* r6 */ + (((u64)access_ctrl) << 32ULL), /* r7 */ + pd.value, /* r8 */ + 0, 0, 0, 0); + outparms->handle.handle = outs[0]; + outparms->lkey = (u32)outs[2]; + outparms->rkey = (u32)outs[3]; + + return ret; +} + +u64 hipz_h_alloc_resource_mw(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mw *mw, + const struct ipz_pd pd, + struct ehca_mw_hipzout_parms *outparms) +{ + u64 ret; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + + ret = ehca_plpar_hcall9(H_ALLOC_RESOURCE, outs, + adapter_handle.handle, /* r4 */ + 6, /* r5 */ + pd.value, /* r6 */ + 0, 0, 0, 0, 0, 0); + outparms->handle.handle = outs[0]; + outparms->rkey = (u32)outs[3]; + + return ret; +} + +u64 hipz_h_query_mw(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mw *mw, + struct ehca_mw_hipzout_parms *outparms) +{ + u64 ret; + u64 outs[PLPAR_HCALL9_BUFSIZE]; + + ret = ehca_plpar_hcall9(H_QUERY_MW, outs, + adapter_handle.handle, /* r4 */ + mw->ipz_mw_handle.handle, /* r5 */ + 0, 0, 0, 0, 0, 0, 0); + outparms->rkey = (u32)outs[3]; + + return ret; +} + +u64 hipz_h_free_resource_mw(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mw *mw) +{ + return ehca_plpar_hcall_norets(H_FREE_RESOURCE, + adapter_handle.handle, /* r4 */ + mw->ipz_mw_handle.handle, /* r5 */ + 0, 0, 0, 0, 0); +} + +u64 hipz_h_error_data(const struct ipz_adapter_handle adapter_handle, + const u64 ressource_handle, + void *rblock, + unsigned long *byte_count) +{ + u64 r_cb = virt_to_abs(rblock); + + if (r_cb & (EHCA_PAGESIZE-1)) { + ehca_gen_err("rblock not page aligned."); + return H_PARAMETER; + } + + return ehca_plpar_hcall_norets(H_ERROR_DATA, + adapter_handle.handle, + ressource_handle, + r_cb, + 0, 0, 0, 0); +} diff --git a/drivers/infiniband/hw/ehca/hcp_if.h b/drivers/infiniband/hw/ehca/hcp_if.h new file mode 100644 index 00000000000..587ebd47095 --- /dev/null +++ b/drivers/infiniband/hw/ehca/hcp_if.h @@ -0,0 +1,261 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * Firmware Infiniband Interface code for POWER + * + * Authors: Christoph Raisch + * Hoang-Nam Nguyen + * Gerd Bayer + * Waleri Fomin + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __HCP_IF_H__ +#define __HCP_IF_H__ + +#include "ehca_classes.h" +#include "ehca_tools.h" +#include "hipz_hw.h" + +/* + * hipz_h_alloc_resource_eq allocates EQ resources in HW and FW, initalize + * resources, create the empty EQPT (ring). + */ +u64 hipz_h_alloc_resource_eq(const struct ipz_adapter_handle adapter_handle, + struct ehca_pfeq *pfeq, + const u32 neq_control, + const u32 number_of_entries, + struct ipz_eq_handle *eq_handle, + u32 * act_nr_of_entries, + u32 * act_pages, + u32 * eq_ist); + +u64 hipz_h_reset_event(const struct ipz_adapter_handle adapter_handle, + struct ipz_eq_handle eq_handle, + const u64 event_mask); +/* + * hipz_h_allocate_resource_cq allocates CQ resources in HW and FW, initialize + * resources, create the empty CQPT (ring). + */ +u64 hipz_h_alloc_resource_cq(const struct ipz_adapter_handle adapter_handle, + struct ehca_cq *cq, + struct ehca_alloc_cq_parms *param); + + +/* + * hipz_h_alloc_resource_qp allocates QP resources in HW and FW, + * initialize resources, create empty QPPTs (2 rings). + */ +u64 hipz_h_alloc_resource_qp(const struct ipz_adapter_handle adapter_handle, + struct ehca_qp *qp, + struct ehca_alloc_qp_parms *parms); + +u64 hipz_h_query_port(const struct ipz_adapter_handle adapter_handle, + const u8 port_id, + struct hipz_query_port *query_port_response_block); + +u64 hipz_h_query_hca(const struct ipz_adapter_handle adapter_handle, + struct hipz_query_hca *query_hca_rblock); + +/* + * hipz_h_register_rpage internal function in hcp_if.h for all + * hcp_H_REGISTER_RPAGE calls. + */ +u64 hipz_h_register_rpage(const struct ipz_adapter_handle adapter_handle, + const u8 pagesize, + const u8 queue_type, + const u64 resource_handle, + const u64 logical_address_of_page, + u64 count); + +u64 hipz_h_register_rpage_eq(const struct ipz_adapter_handle adapter_handle, + const struct ipz_eq_handle eq_handle, + struct ehca_pfeq *pfeq, + const u8 pagesize, + const u8 queue_type, + const u64 logical_address_of_page, + const u64 count); + +u64 hipz_h_query_int_state(const struct ipz_adapter_handle + hcp_adapter_handle, + u32 ist); + +u64 hipz_h_register_rpage_cq(const struct ipz_adapter_handle adapter_handle, + const struct ipz_cq_handle cq_handle, + struct ehca_pfcq *pfcq, + const u8 pagesize, + const u8 queue_type, + const u64 logical_address_of_page, + const u64 count, + const struct h_galpa gal); + +u64 hipz_h_register_rpage_qp(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct ehca_pfqp *pfqp, + const u8 pagesize, + const u8 queue_type, + const u64 logical_address_of_page, + const u64 count, + const struct h_galpa galpa); + +u64 hipz_h_disable_and_get_wqe(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct ehca_pfqp *pfqp, + void **log_addr_next_sq_wqe_tb_processed, + void **log_addr_next_rq_wqe_tb_processed, + int dis_and_get_function_code); +enum hcall_sigt { + HCALL_SIGT_NO_CQE = 0, + HCALL_SIGT_BY_WQE = 1, + HCALL_SIGT_EVERY = 2 +}; + +u64 hipz_h_modify_qp(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct ehca_pfqp *pfqp, + const u64 update_mask, + struct hcp_modify_qp_control_block *mqpcb, + struct h_galpa gal); + +u64 hipz_h_query_qp(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct ehca_pfqp *pfqp, + struct hcp_modify_qp_control_block *qqpcb, + struct h_galpa gal); + +u64 hipz_h_destroy_qp(const struct ipz_adapter_handle adapter_handle, + struct ehca_qp *qp); + +u64 hipz_h_define_aqp0(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct h_galpa gal, + u32 port); + +u64 hipz_h_define_aqp1(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct h_galpa gal, + u32 port, u32 * pma_qp_nr, + u32 * bma_qp_nr); + +u64 hipz_h_attach_mcqp(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct h_galpa gal, + u16 mcg_dlid, + u64 subnet_prefix, u64 interface_id); + +u64 hipz_h_detach_mcqp(const struct ipz_adapter_handle adapter_handle, + const struct ipz_qp_handle qp_handle, + struct h_galpa gal, + u16 mcg_dlid, + u64 subnet_prefix, u64 interface_id); + +u64 hipz_h_destroy_cq(const struct ipz_adapter_handle adapter_handle, + struct ehca_cq *cq, + u8 force_flag); + +u64 hipz_h_destroy_eq(const struct ipz_adapter_handle adapter_handle, + struct ehca_eq *eq); + +/* + * hipz_h_alloc_resource_mr allocates MR resources in HW and FW, initialize + * resources. + */ +u64 hipz_h_alloc_resource_mr(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mr *mr, + const u64 vaddr, + const u64 length, + const u32 access_ctrl, + const struct ipz_pd pd, + struct ehca_mr_hipzout_parms *outparms); + +/* hipz_h_register_rpage_mr registers MR resource pages in HW and FW */ +u64 hipz_h_register_rpage_mr(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mr *mr, + const u8 pagesize, + const u8 queue_type, + const u64 logical_address_of_page, + const u64 count); + +/* hipz_h_query_mr queries MR in HW and FW */ +u64 hipz_h_query_mr(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mr *mr, + struct ehca_mr_hipzout_parms *outparms); + +/* hipz_h_free_resource_mr frees MR resources in HW and FW */ +u64 hipz_h_free_resource_mr(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mr *mr); + +/* hipz_h_reregister_pmr reregisters MR in HW and FW */ +u64 hipz_h_reregister_pmr(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mr *mr, + const u64 vaddr_in, + const u64 length, + const u32 access_ctrl, + const struct ipz_pd pd, + const u64 mr_addr_cb, + struct ehca_mr_hipzout_parms *outparms); + +/* hipz_h_register_smr register shared MR in HW and FW */ +u64 hipz_h_register_smr(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mr *mr, + const struct ehca_mr *orig_mr, + const u64 vaddr_in, + const u32 access_ctrl, + const struct ipz_pd pd, + struct ehca_mr_hipzout_parms *outparms); + +/* + * hipz_h_alloc_resource_mw allocates MW resources in HW and FW, initialize + * resources. + */ +u64 hipz_h_alloc_resource_mw(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mw *mw, + const struct ipz_pd pd, + struct ehca_mw_hipzout_parms *outparms); + +/* hipz_h_query_mw queries MW in HW and FW */ +u64 hipz_h_query_mw(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mw *mw, + struct ehca_mw_hipzout_parms *outparms); + +/* hipz_h_free_resource_mw frees MW resources in HW and FW */ +u64 hipz_h_free_resource_mw(const struct ipz_adapter_handle adapter_handle, + const struct ehca_mw *mw); + +u64 hipz_h_error_data(const struct ipz_adapter_handle adapter_handle, + const u64 ressource_handle, + void *rblock, + unsigned long *byte_count); + +#endif /* __HCP_IF_H__ */ diff --git a/drivers/infiniband/hw/ehca/hcp_phyp.c b/drivers/infiniband/hw/ehca/hcp_phyp.c new file mode 100644 index 00000000000..0b1a4772c78 --- /dev/null +++ b/drivers/infiniband/hw/ehca/hcp_phyp.c @@ -0,0 +1,80 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * load store abstraction for ehca register access with tracing + * + * Authors: Christoph Raisch + * Hoang-Nam Nguyen + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "ehca_classes.h" +#include "hipz_hw.h" + +int hcall_map_page(u64 physaddr, u64 *mapaddr) +{ + *mapaddr = (u64)(ioremap(physaddr, EHCA_PAGESIZE)); + return 0; +} + +int hcall_unmap_page(u64 mapaddr) +{ + iounmap((volatile void __iomem*)mapaddr); + return 0; +} + +int hcp_galpas_ctor(struct h_galpas *galpas, + u64 paddr_kernel, u64 paddr_user) +{ + int ret = hcall_map_page(paddr_kernel, &galpas->kernel.fw_handle); + if (ret) + return ret; + + galpas->user.fw_handle = paddr_user; + + return 0; +} + +int hcp_galpas_dtor(struct h_galpas *galpas) +{ + if (galpas->kernel.fw_handle) { + int ret = hcall_unmap_page(galpas->kernel.fw_handle); + if (ret) + return ret; + } + + galpas->user.fw_handle = galpas->kernel.fw_handle = 0; + + return 0; +} diff --git a/drivers/infiniband/hw/ehca/hcp_phyp.h b/drivers/infiniband/hw/ehca/hcp_phyp.h new file mode 100644 index 00000000000..5305c2a3ed9 --- /dev/null +++ b/drivers/infiniband/hw/ehca/hcp_phyp.h @@ -0,0 +1,90 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * Firmware calls + * + * Authors: Christoph Raisch + * Hoang-Nam Nguyen + * Waleri Fomin + * Gerd Bayer + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __HCP_PHYP_H__ +#define __HCP_PHYP_H__ + + +/* + * eHCA page (mapped into memory) + * resource to access eHCA register pages in CPU address space +*/ +struct h_galpa { + u64 fw_handle; + /* for pSeries this is a 64bit memory address where + I/O memory is mapped into CPU address space (kv) */ +}; + +/* + * resource to access eHCA address space registers, all types + */ +struct h_galpas { + u32 pid; /*PID of userspace galpa checking */ + struct h_galpa user; /* user space accessible resource, + set to 0 if unused */ + struct h_galpa kernel; /* kernel space accessible resource, + set to 0 if unused */ +}; + +static inline u64 hipz_galpa_load(struct h_galpa galpa, u32 offset) +{ + u64 addr = galpa.fw_handle + offset; + return *(volatile u64 __force *)addr; +} + +static inline void hipz_galpa_store(struct h_galpa galpa, u32 offset, u64 value) +{ + u64 addr = galpa.fw_handle + offset; + *(volatile u64 __force *)addr = value; +} + +int hcp_galpas_ctor(struct h_galpas *galpas, + u64 paddr_kernel, u64 paddr_user); + +int hcp_galpas_dtor(struct h_galpas *galpas); + +int hcall_map_page(u64 physaddr, u64 * mapaddr); + +int hcall_unmap_page(u64 mapaddr); + +#endif diff --git a/drivers/infiniband/hw/ehca/hipz_fns.h b/drivers/infiniband/hw/ehca/hipz_fns.h new file mode 100644 index 00000000000..9dac93d0214 --- /dev/null +++ b/drivers/infiniband/hw/ehca/hipz_fns.h @@ -0,0 +1,68 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * HW abstraction register functions + * + * Authors: Christoph Raisch + * Reinhard Ernst + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __HIPZ_FNS_H__ +#define __HIPZ_FNS_H__ + +#include "ehca_classes.h" +#include "hipz_hw.h" + +#include "hipz_fns_core.h" + +#define hipz_galpa_store_eq(gal, offset, value) \ + hipz_galpa_store(gal, EQTEMM_OFFSET(offset), value) + +#define hipz_galpa_load_eq(gal, offset) \ + hipz_galpa_load(gal, EQTEMM_OFFSET(offset)) + +#define hipz_galpa_store_qped(gal, offset, value) \ + hipz_galpa_store(gal, QPEDMM_OFFSET(offset), value) + +#define hipz_galpa_load_qped(gal, offset) \ + hipz_galpa_load(gal, QPEDMM_OFFSET(offset)) + +#define hipz_galpa_store_mrmw(gal, offset, value) \ + hipz_galpa_store(gal, MRMWMM_OFFSET(offset), value) + +#define hipz_galpa_load_mrmw(gal, offset) \ + hipz_galpa_load(gal, MRMWMM_OFFSET(offset)) + +#endif diff --git a/drivers/infiniband/hw/ehca/hipz_fns_core.h b/drivers/infiniband/hw/ehca/hipz_fns_core.h new file mode 100644 index 00000000000..20898a15344 --- /dev/null +++ b/drivers/infiniband/hw/ehca/hipz_fns_core.h @@ -0,0 +1,100 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * HW abstraction register functions + * + * Authors: Christoph Raisch + * Heiko J Schick + * Hoang-Nam Nguyen + * Reinhard Ernst + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __HIPZ_FNS_CORE_H__ +#define __HIPZ_FNS_CORE_H__ + +#include "hcp_phyp.h" +#include "hipz_hw.h" + +#define hipz_galpa_store_cq(gal, offset, value) \ + hipz_galpa_store(gal, CQTEMM_OFFSET(offset), value) + +#define hipz_galpa_load_cq(gal, offset) \ + hipz_galpa_load(gal, CQTEMM_OFFSET(offset)) + +#define hipz_galpa_store_qp(gal,offset, value) \ + hipz_galpa_store(gal, QPTEMM_OFFSET(offset), value) +#define hipz_galpa_load_qp(gal, offset) \ + hipz_galpa_load(gal,QPTEMM_OFFSET(offset)) + +static inline void hipz_update_sqa(struct ehca_qp *qp, u16 nr_wqes) +{ + /* ringing doorbell :-) */ + hipz_galpa_store_qp(qp->galpas.kernel, qpx_sqa, + EHCA_BMASK_SET(QPX_SQADDER, nr_wqes)); +} + +static inline void hipz_update_rqa(struct ehca_qp *qp, u16 nr_wqes) +{ + /* ringing doorbell :-) */ + hipz_galpa_store_qp(qp->galpas.kernel, qpx_rqa, + EHCA_BMASK_SET(QPX_RQADDER, nr_wqes)); +} + +static inline void hipz_update_feca(struct ehca_cq *cq, u32 nr_cqes) +{ + hipz_galpa_store_cq(cq->galpas.kernel, cqx_feca, + EHCA_BMASK_SET(CQX_FECADDER, nr_cqes)); +} + +static inline void hipz_set_cqx_n0(struct ehca_cq *cq, u32 value) +{ + u64 cqx_n0_reg; + + hipz_galpa_store_cq(cq->galpas.kernel, cqx_n0, + EHCA_BMASK_SET(CQX_N0_GENERATE_SOLICITED_COMP_EVENT, + value)); + cqx_n0_reg = hipz_galpa_load_cq(cq->galpas.kernel, cqx_n0); +} + +static inline void hipz_set_cqx_n1(struct ehca_cq *cq, u32 value) +{ + u64 cqx_n1_reg; + + hipz_galpa_store_cq(cq->galpas.kernel, cqx_n1, + EHCA_BMASK_SET(CQX_N1_GENERATE_COMP_EVENT, value)); + cqx_n1_reg = hipz_galpa_load_cq(cq->galpas.kernel, cqx_n1); +} + +#endif /* __HIPZ_FNC_CORE_H__ */ diff --git a/drivers/infiniband/hw/ehca/hipz_hw.h b/drivers/infiniband/hw/ehca/hipz_hw.h new file mode 100644 index 00000000000..3fc92b031c5 --- /dev/null +++ b/drivers/infiniband/hw/ehca/hipz_hw.h @@ -0,0 +1,388 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * eHCA register definitions + * + * Authors: Waleri Fomin + * Christoph Raisch + * Reinhard Ernst + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __HIPZ_HW_H__ +#define __HIPZ_HW_H__ + +#include "ehca_tools.h" + +/* QP Table Entry Memory Map */ +struct hipz_qptemm { + u64 qpx_hcr; + u64 qpx_c; + u64 qpx_herr; + u64 qpx_aer; +/* 0x20*/ + u64 qpx_sqa; + u64 qpx_sqc; + u64 qpx_rqa; + u64 qpx_rqc; +/* 0x40*/ + u64 qpx_st; + u64 qpx_pmstate; + u64 qpx_pmfa; + u64 qpx_pkey; +/* 0x60*/ + u64 qpx_pkeya; + u64 qpx_pkeyb; + u64 qpx_pkeyc; + u64 qpx_pkeyd; +/* 0x80*/ + u64 qpx_qkey; + u64 qpx_dqp; + u64 qpx_dlidp; + u64 qpx_portp; +/* 0xa0*/ + u64 qpx_slidp; + u64 qpx_slidpp; + u64 qpx_dlida; + u64 qpx_porta; +/* 0xc0*/ + u64 qpx_slida; + u64 qpx_slidpa; + u64 qpx_slvl; + u64 qpx_ipd; +/* 0xe0*/ + u64 qpx_mtu; + u64 qpx_lato; + u64 qpx_rlimit; + u64 qpx_rnrlimit; +/* 0x100*/ + u64 qpx_t; + u64 qpx_sqhp; + u64 qpx_sqptp; + u64 qpx_nspsn; +/* 0x120*/ + u64 qpx_nspsnhwm; + u64 reserved1; + u64 qpx_sdsi; + u64 qpx_sdsbc; +/* 0x140*/ + u64 qpx_sqwsize; + u64 qpx_sqwts; + u64 qpx_lsn; + u64 qpx_nssn; +/* 0x160 */ + u64 qpx_mor; + u64 qpx_cor; + u64 qpx_sqsize; + u64 qpx_erc; +/* 0x180*/ + u64 qpx_rnrrc; + u64 qpx_ernrwt; + u64 qpx_rnrresp; + u64 qpx_lmsna; +/* 0x1a0 */ + u64 qpx_sqhpc; + u64 qpx_sqcptp; + u64 qpx_sigt; + u64 qpx_wqecnt; +/* 0x1c0*/ + u64 qpx_rqhp; + u64 qpx_rqptp; + u64 qpx_rqsize; + u64 qpx_nrr; +/* 0x1e0*/ + u64 qpx_rdmac; + u64 qpx_nrpsn; + u64 qpx_lapsn; + u64 qpx_lcr; +/* 0x200*/ + u64 qpx_rwc; + u64 qpx_rwva; + u64 qpx_rdsi; + u64 qpx_rdsbc; +/* 0x220*/ + u64 qpx_rqwsize; + u64 qpx_crmsn; + u64 qpx_rdd; + u64 qpx_larpsn; +/* 0x240*/ + u64 qpx_pd; + u64 qpx_scqn; + u64 qpx_rcqn; + u64 qpx_aeqn; +/* 0x260*/ + u64 qpx_aaelog; + u64 qpx_ram; + u64 qpx_rdmaqe0; + u64 qpx_rdmaqe1; +/* 0x280*/ + u64 qpx_rdmaqe2; + u64 qpx_rdmaqe3; + u64 qpx_nrpsnhwm; +/* 0x298*/ + u64 reserved[(0x400 - 0x298) / 8]; +/* 0x400 extended data */ + u64 reserved_ext[(0x500 - 0x400) / 8]; +/* 0x500 */ + u64 reserved2[(0x1000 - 0x500) / 8]; +/* 0x1000 */ +}; + +#define QPX_SQADDER EHCA_BMASK_IBM(48,63) +#define QPX_RQADDER EHCA_BMASK_IBM(48,63) + +#define QPTEMM_OFFSET(x) offsetof(struct hipz_qptemm,x) + +/* MRMWPT Entry Memory Map */ +struct hipz_mrmwmm { + /* 0x00 */ + u64 mrx_hcr; + + u64 mrx_c; + u64 mrx_herr; + u64 mrx_aer; + /* 0x20 */ + u64 mrx_pp; + u64 reserved1; + u64 reserved2; + u64 reserved3; + /* 0x40 */ + u64 reserved4[(0x200 - 0x40) / 8]; + /* 0x200 */ + u64 mrx_ctl[64]; + +}; + +#define MRMWMM_OFFSET(x) offsetof(struct hipz_mrmwmm,x) + +struct hipz_qpedmm { + /* 0x00 */ + u64 reserved0[(0x400) / 8]; + /* 0x400 */ + u64 qpedx_phh; + u64 qpedx_ppsgp; + /* 0x410 */ + u64 qpedx_ppsgu; + u64 qpedx_ppdgp; + /* 0x420 */ + u64 qpedx_ppdgu; + u64 qpedx_aph; + /* 0x430 */ + u64 qpedx_apsgp; + u64 qpedx_apsgu; + /* 0x440 */ + u64 qpedx_apdgp; + u64 qpedx_apdgu; + /* 0x450 */ + u64 qpedx_apav; + u64 qpedx_apsav; + /* 0x460 */ + u64 qpedx_hcr; + u64 reserved1[4]; + /* 0x488 */ + u64 qpedx_rrl0; + /* 0x490 */ + u64 qpedx_rrrkey0; + u64 qpedx_rrva0; + /* 0x4a0 */ + u64 reserved2; + u64 qpedx_rrl1; + /* 0x4b0 */ + u64 qpedx_rrrkey1; + u64 qpedx_rrva1; + /* 0x4c0 */ + u64 reserved3; + u64 qpedx_rrl2; + /* 0x4d0 */ + u64 qpedx_rrrkey2; + u64 qpedx_rrva2; + /* 0x4e0 */ + u64 reserved4; + u64 qpedx_rrl3; + /* 0x4f0 */ + u64 qpedx_rrrkey3; + u64 qpedx_rrva3; +}; + +#define QPEDMM_OFFSET(x) offsetof(struct hipz_qpedmm,x) + +/* CQ Table Entry Memory Map */ +struct hipz_cqtemm { + u64 cqx_hcr; + u64 cqx_c; + u64 cqx_herr; + u64 cqx_aer; +/* 0x20 */ + u64 cqx_ptp; + u64 cqx_tp; + u64 cqx_fec; + u64 cqx_feca; +/* 0x40 */ + u64 cqx_ep; + u64 cqx_eq; +/* 0x50 */ + u64 reserved1; + u64 cqx_n0; +/* 0x60 */ + u64 cqx_n1; + u64 reserved2[(0x1000 - 0x60) / 8]; +/* 0x1000 */ +}; + +#define CQX_FEC_CQE_CNT EHCA_BMASK_IBM(32,63) +#define CQX_FECADDER EHCA_BMASK_IBM(32,63) +#define CQX_N0_GENERATE_SOLICITED_COMP_EVENT EHCA_BMASK_IBM(0,0) +#define CQX_N1_GENERATE_COMP_EVENT EHCA_BMASK_IBM(0,0) + +#define CQTEMM_OFFSET(x) offsetof(struct hipz_cqtemm,x) + +/* EQ Table Entry Memory Map */ +struct hipz_eqtemm { + u64 eqx_hcr; + u64 eqx_c; + + u64 eqx_herr; + u64 eqx_aer; +/* 0x20 */ + u64 eqx_ptp; + u64 eqx_tp; + u64 eqx_ssba; + u64 eqx_psba; + +/* 0x40 */ + u64 eqx_cec; + u64 eqx_meql; + u64 eqx_xisbi; + u64 eqx_xisc; +/* 0x60 */ + u64 eqx_it; + +}; + +#define EQTEMM_OFFSET(x) offsetof(struct hipz_eqtemm,x) + +/* access control defines for MR/MW */ +#define HIPZ_ACCESSCTRL_L_WRITE 0x00800000 +#define HIPZ_ACCESSCTRL_R_WRITE 0x00400000 +#define HIPZ_ACCESSCTRL_R_READ 0x00200000 +#define HIPZ_ACCESSCTRL_R_ATOMIC 0x00100000 +#define HIPZ_ACCESSCTRL_MW_BIND 0x00080000 + +/* query hca response block */ +struct hipz_query_hca { + u32 cur_reliable_dg; + u32 cur_qp; + u32 cur_cq; + u32 cur_eq; + u32 cur_mr; + u32 cur_mw; + u32 cur_ee_context; + u32 cur_mcast_grp; + u32 cur_qp_attached_mcast_grp; + u32 reserved1; + u32 cur_ipv6_qp; + u32 cur_eth_qp; + u32 cur_hp_mr; + u32 reserved2[3]; + u32 max_rd_domain; + u32 max_qp; + u32 max_cq; + u32 max_eq; + u32 max_mr; + u32 max_hp_mr; + u32 max_mw; + u32 max_mrwpte; + u32 max_special_mrwpte; + u32 max_rd_ee_context; + u32 max_mcast_grp; + u32 max_total_mcast_qp_attach; + u32 max_mcast_qp_attach; + u32 max_raw_ipv6_qp; + u32 max_raw_ethy_qp; + u32 internal_clock_frequency; + u32 max_pd; + u32 max_ah; + u32 max_cqe; + u32 max_wqes_wq; + u32 max_partitions; + u32 max_rr_ee_context; + u32 max_rr_qp; + u32 max_rr_hca; + u32 max_act_wqs_ee_context; + u32 max_act_wqs_qp; + u32 max_sge; + u32 max_sge_rd; + u32 memory_page_size_supported; + u64 max_mr_size; + u32 local_ca_ack_delay; + u32 num_ports; + u32 vendor_id; + u32 vendor_part_id; + u32 hw_ver; + u64 node_guid; + u64 hca_cap_indicators; + u32 data_counter_register_size; + u32 max_shared_rq; + u32 max_isns_eq; + u32 max_neq; +} __attribute__ ((packed)); + +/* query port response block */ +struct hipz_query_port { + u32 state; + u32 bad_pkey_cntr; + u32 lmc; + u32 lid; + u32 subnet_timeout; + u32 qkey_viol_cntr; + u32 sm_sl; + u32 sm_lid; + u32 capability_mask; + u32 init_type_reply; + u32 pkey_tbl_len; + u32 gid_tbl_len; + u64 gid_prefix; + u32 port_nr; + u16 pkey_entries[16]; + u8 reserved1[32]; + u32 trent_size; + u32 trbuf_size; + u64 max_msg_sz; + u32 max_mtu; + u32 vl_cap; + u8 reserved2[1900]; + u64 guid_entries[255]; +} __attribute__ ((packed)); + +#endif diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.c b/drivers/infiniband/hw/ehca/ipz_pt_fn.c new file mode 100644 index 00000000000..e028ff1588c --- /dev/null +++ b/drivers/infiniband/hw/ehca/ipz_pt_fn.c @@ -0,0 +1,149 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * internal queue handling + * + * Authors: Waleri Fomin + * Reinhard Ernst + * Christoph Raisch + * + * Copyright (c) 2005 IBM Corporation + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "ehca_tools.h" +#include "ipz_pt_fn.h" + +void *ipz_qpageit_get_inc(struct ipz_queue *queue) +{ + void *ret = ipz_qeit_get(queue); + queue->current_q_offset += queue->pagesize; + if (queue->current_q_offset > queue->queue_length) { + queue->current_q_offset -= queue->pagesize; + ret = NULL; + } + if (((u64)ret) % EHCA_PAGESIZE) { + ehca_gen_err("ERROR!! not at PAGE-Boundary"); + return NULL; + } + return ret; +} + +void *ipz_qeit_eq_get_inc(struct ipz_queue *queue) +{ + void *ret = ipz_qeit_get(queue); + u64 last_entry_in_q = queue->queue_length - queue->qe_size; + + queue->current_q_offset += queue->qe_size; + if (queue->current_q_offset > last_entry_in_q) { + queue->current_q_offset = 0; + queue->toggle_state = (~queue->toggle_state) & 1; + } + + return ret; +} + +int ipz_queue_ctor(struct ipz_queue *queue, + const u32 nr_of_pages, + const u32 pagesize, const u32 qe_size, const u32 nr_of_sg) +{ + int pages_per_kpage = PAGE_SIZE >> EHCA_PAGESHIFT; + int f; + + if (pagesize > PAGE_SIZE) { + ehca_gen_err("FATAL ERROR: pagesize=%x is greater " + "than kernel page size", pagesize); + return 0; + } + if (!pages_per_kpage) { + ehca_gen_err("FATAL ERROR: invalid kernel page size. " + "pages_per_kpage=%x", pages_per_kpage); + return 0; + } + queue->queue_length = nr_of_pages * pagesize; + queue->queue_pages = vmalloc(nr_of_pages * sizeof(void *)); + if (!queue->queue_pages) { + ehca_gen_err("ERROR!! didn't get the memory"); + return 0; + } + memset(queue->queue_pages, 0, nr_of_pages * sizeof(void *)); + /* + * allocate pages for queue: + * outer loop allocates whole kernel pages (page aligned) and + * inner loop divides a kernel page into smaller hca queue pages + */ + f = 0; + while (f < nr_of_pages) { + u8 *kpage = (u8*)get_zeroed_page(GFP_KERNEL); + int k; + if (!kpage) + goto ipz_queue_ctor_exit0; /*NOMEM*/ + for (k = 0; k < pages_per_kpage && f < nr_of_pages; k++) { + (queue->queue_pages)[f] = (struct ipz_page *)kpage; + kpage += EHCA_PAGESIZE; + f++; + } + } + + queue->current_q_offset = 0; + queue->qe_size = qe_size; + queue->act_nr_of_sg = nr_of_sg; + queue->pagesize = pagesize; + queue->toggle_state = 1; + return 1; + + ipz_queue_ctor_exit0: + ehca_gen_err("Couldn't get alloc pages queue=%p f=%x nr_of_pages=%x", + queue, f, nr_of_pages); + for (f = 0; f < nr_of_pages; f += pages_per_kpage) { + if (!(queue->queue_pages)[f]) + break; + free_page((unsigned long)(queue->queue_pages)[f]); + } + return 0; +} + +int ipz_queue_dtor(struct ipz_queue *queue) +{ + int pages_per_kpage = PAGE_SIZE >> EHCA_PAGESHIFT; + int g; + int nr_pages; + + if (!queue || !queue->queue_pages) { + ehca_gen_dbg("queue or queue_pages is NULL"); + return 0; + } + nr_pages = queue->queue_length / queue->pagesize; + for (g = 0; g < nr_pages; g += pages_per_kpage) + free_page((unsigned long)(queue->queue_pages)[g]); + vfree(queue->queue_pages); + + return 1; +} diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.h b/drivers/infiniband/hw/ehca/ipz_pt_fn.h new file mode 100644 index 00000000000..2f13509d525 --- /dev/null +++ b/drivers/infiniband/hw/ehca/ipz_pt_fn.h @@ -0,0 +1,247 @@ +/* + * IBM eServer eHCA Infiniband device driver for Linux on POWER + * + * internal queue handling + * + * Authors: Waleri Fomin + * Reinhard Ernst + * Christoph Raisch + * + * Copyright (c) 2005 IBM Corporation + * + * All rights reserved. + * + * This source code is distributed under a dual license of GPL v2.0 and OpenIB + * BSD. + * + * OpenIB BSD License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __IPZ_PT_FN_H__ +#define __IPZ_PT_FN_H__ + +#define EHCA_PAGESHIFT 12 +#define EHCA_PAGESIZE 4096UL +#define EHCA_PAGEMASK (~(EHCA_PAGESIZE-1)) +#define EHCA_PT_ENTRIES 512UL + +#include "ehca_tools.h" +#include "ehca_qes.h" + +/* struct generic ehca page */ +struct ipz_page { + u8 entries[EHCA_PAGESIZE]; +}; + +/* struct generic queue in linux kernel virtual memory (kv) */ +struct ipz_queue { + u64 current_q_offset; /* current queue entry */ + + struct ipz_page **queue_pages; /* array of pages belonging to queue */ + u32 qe_size; /* queue entry size */ + u32 act_nr_of_sg; + u32 queue_length; /* queue length allocated in bytes */ + u32 pagesize; + u32 toggle_state; /* toggle flag - per page */ + u32 dummy3; /* 64 bit alignment */ +}; + +/* + * return current Queue Entry for a certain q_offset + * returns address (kv) of Queue Entry + */ +static inline void *ipz_qeit_calc(struct ipz_queue *queue, u64 q_offset) +{ + struct ipz_page *current_page; + if (q_offset >= queue->queue_length) + return NULL; + current_page = (queue->queue_pages)[q_offset >> EHCA_PAGESHIFT]; + return ¤t_page->entries[q_offset & (EHCA_PAGESIZE - 1)]; +} + +/* + * return current Queue Entry + * returns address (kv) of Queue Entry + */ +static inline void *ipz_qeit_get(struct ipz_queue *queue) +{ + return ipz_qeit_calc(queue, queue->current_q_offset); +} + +/* + * return current Queue Page , increment Queue Page iterator from + * page to page in struct ipz_queue, last increment will return 0! and + * NOT wrap + * returns address (kv) of Queue Page + * warning don't use in parallel with ipz_QE_get_inc() + */ +void *ipz_qpageit_get_inc(struct ipz_queue *queue); + +/* + * return current Queue Entry, increment Queue Entry iterator by one + * step in struct ipz_queue, will wrap in ringbuffer + * returns address (kv) of Queue Entry BEFORE increment + * warning don't use in parallel with ipz_qpageit_get_inc() + * warning unpredictable results may occur if steps>act_nr_of_queue_entries + */ +static inline void *ipz_qeit_get_inc(struct ipz_queue *queue) +{ + void *ret = ipz_qeit_get(queue); + queue->current_q_offset += queue->qe_size; + if (queue->current_q_offset >= queue->queue_length) { + queue->current_q_offset = 0; + /* toggle the valid flag */ + queue->toggle_state = (~queue->toggle_state) & 1; + } + + return ret; +} + +/* + * return current Queue Entry, increment Queue Entry iterator by one + * step in struct ipz_queue, will wrap in ringbuffer + * returns address (kv) of Queue Entry BEFORE increment + * returns 0 and does not increment, if wrong valid state + * warning don't use in parallel with ipz_qpageit_get_inc() + * warning unpredictable results may occur if steps>act_nr_of_queue_entries + */ +static inline void *ipz_qeit_get_inc_valid(struct ipz_queue *queue) +{ + struct ehca_cqe *cqe = ipz_qeit_get(queue); + u32 cqe_flags = cqe->cqe_flags; + + if ((cqe_flags >> 7) != (queue->toggle_state & 1)) + return NULL; + + ipz_qeit_get_inc(queue); + return cqe; +} + +/* + * returns and resets Queue Entry iterator + * returns address (kv) of first Queue Entry + */ +static inline void *ipz_qeit_reset(struct ipz_queue *queue) +{ + queue->current_q_offset = 0; + return ipz_qeit_get(queue); +} + +/* struct generic page table */ +struct ipz_pt { + u64 entries[EHCA_PT_ENTRIES]; +}; + +/* struct page table for a queue, only to be used in pf */ +struct ipz_qpt { + /* queue page tables (kv), use u64 because we know the element length */ + u64 *qpts; + u32 n_qpts; + u32 n_ptes; /* number of page table entries */ + u64 *current_pte_addr; +}; + +/* + * constructor for a ipz_queue_t, placement new for ipz_queue_t, + * new for all dependent datastructors + * all QP Tables are the same + * flow: + * allocate+pin queue + * see ipz_qpt_ctor() + * returns true if ok, false if out of memory + */ +int ipz_queue_ctor(struct ipz_queue *queue, const u32 nr_of_pages, + const u32 pagesize, const u32 qe_size, + const u32 nr_of_sg); + +/* + * destructor for a ipz_queue_t + * -# free queue + * see ipz_queue_ctor() + * returns true if ok, false if queue was NULL-ptr of free failed + */ +int ipz_queue_dtor(struct ipz_queue *queue); + +/* + * constructor for a ipz_qpt_t, + * placement new for struct ipz_queue, new for all dependent datastructors + * all QP Tables are the same, + * flow: + * -# allocate+pin queue + * -# initialise ptcb + * -# allocate+pin PTs + * -# link PTs to a ring, according to HCA Arch, set bit62 id needed + * -# the ring must have room for exactly nr_of_PTEs + * see ipz_qpt_ctor() + */ +void ipz_qpt_ctor(struct ipz_qpt *qpt, + const u32 nr_of_qes, + const u32 pagesize, + const u32 qe_size, + const u8 lowbyte, const u8 toggle, + u32 * act_nr_of_QEs, u32 * act_nr_of_pages); + +/* + * return current Queue Entry, increment Queue Entry iterator by one + * step in struct ipz_queue, will wrap in ringbuffer + * returns address (kv) of Queue Entry BEFORE increment + * warning don't use in parallel with ipz_qpageit_get_inc() + * warning unpredictable results may occur if steps>act_nr_of_queue_entries + * fix EQ page problems + */ +void *ipz_qeit_eq_get_inc(struct ipz_queue *queue); + +/* + * return current Event Queue Entry, increment Queue Entry iterator + * by one step in struct ipz_queue if valid, will wrap in ringbuffer + * returns address (kv) of Queue Entry BEFORE increment + * returns 0 and does not increment, if wrong valid state + * warning don't use in parallel with ipz_queue_QPageit_get_inc() + * warning unpredictable results may occur if steps>act_nr_of_queue_entries + */ +static inline void *ipz_eqit_eq_get_inc_valid(struct ipz_queue *queue) +{ + void *ret = ipz_qeit_get(queue); + u32 qe = *(u8 *) ret; + if ((qe >> 7) != (queue->toggle_state & 1)) + return NULL; + ipz_qeit_eq_get_inc(queue); /* this is a good one */ + return ret; +} + +/* returns address (GX) of first queue entry */ +static inline u64 ipz_qpt_get_firstpage(struct ipz_qpt *qpt) +{ + return be64_to_cpu(qpt->qpts[0]); +} + +/* returns address (kv) of first page of queue page table */ +static inline void *ipz_qpt_get_qpt(struct ipz_qpt *qpt) +{ + return qpt->qpts; +} + +#endif /* __IPZ_PT_FN_H__ */ -- cgit v1.2.3-70-g09d2 From 64f817ba98095156149ba5991592d5d039f6da74 Mon Sep 17 00:00:00 2001 From: Ralph Campbell Date: Fri, 22 Sep 2006 15:22:24 -0700 Subject: IB/uverbs: Allow resize CQ operation to return driver-specific data Add a ib_uverbs_resize_cq_resp.driver_data field so that low-level drivers can return data from a resize CQ operation to userspace. Have ib_uverbs_resize_cq() only copy the cqe field, to avoid having to bump the userspace ABI. Signed-off-by: Ralph Campbell Signed-off-by: Roland Dreier --- drivers/infiniband/core/uverbs_cmd.c | 3 +-- include/rdma/ib_user_verbs.h | 2 ++ 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 8b6df7cec0b..deae43f31e7 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -879,11 +879,10 @@ ssize_t ib_uverbs_resize_cq(struct ib_uverbs_file *file, if (ret) goto out; - memset(&resp, 0, sizeof resp); resp.cqe = cq->cqe; if (copy_to_user((void __user *) (unsigned long) cmd.response, - &resp, sizeof resp)) + &resp, sizeof resp.cqe)) ret = -EFAULT; out: diff --git a/include/rdma/ib_user_verbs.h b/include/rdma/ib_user_verbs.h index 7b5372010f4..db1b814b62c 100644 --- a/include/rdma/ib_user_verbs.h +++ b/include/rdma/ib_user_verbs.h @@ -275,6 +275,8 @@ struct ib_uverbs_resize_cq { struct ib_uverbs_resize_cq_resp { __u32 cqe; + __u32 reserved; + __u64 driver_data[0]; }; struct ib_uverbs_poll_cq { -- cgit v1.2.3-70-g09d2 From 9bc57e2d19db4da81c1150120658cc3658a99ed4 Mon Sep 17 00:00:00 2001 From: Ralph Campbell Date: Fri, 11 Aug 2006 14:58:09 -0700 Subject: IB/uverbs: Pass userspace data to modify_srq and modify_qp methods Pass a struct ib_udata to the low-level driver's ->modify_srq() and ->modify_qp() methods, so that it can get to the device-specific data passed in by the userspace driver. Signed-off-by: Ralph Campbell Signed-off-by: Roland Dreier --- drivers/infiniband/core/uverbs_cmd.c | 13 ++++++++++--- drivers/infiniband/core/verbs.c | 4 ++-- drivers/infiniband/hw/ehca/ehca_iverbs.h | 3 ++- drivers/infiniband/hw/ehca/ehca_qp.c | 3 ++- drivers/infiniband/hw/ipath/ipath_qp.c | 3 ++- drivers/infiniband/hw/ipath/ipath_srq.c | 4 +++- drivers/infiniband/hw/ipath/ipath_verbs.h | 5 +++-- drivers/infiniband/hw/mthca/mthca_dev.h | 5 +++-- drivers/infiniband/hw/mthca/mthca_qp.c | 3 ++- drivers/infiniband/hw/mthca/mthca_srq.c | 2 +- include/rdma/ib_verbs.h | 6 ++++-- 11 files changed, 34 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index deae43f31e7..3fcb5d189a2 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -841,7 +841,6 @@ ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file, err_copy: idr_remove_uobj(&ib_uverbs_cq_idr, &obj->uobject); - err_free: ib_destroy_cq(cq); @@ -1273,6 +1272,7 @@ ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file, int out_len) { struct ib_uverbs_modify_qp cmd; + struct ib_udata udata; struct ib_qp *qp; struct ib_qp_attr *attr; int ret; @@ -1280,6 +1280,9 @@ ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; + INIT_UDATA(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd, + out_len); + attr = kmalloc(sizeof *attr, GFP_KERNEL); if (!attr) return -ENOMEM; @@ -1336,7 +1339,7 @@ ssize_t ib_uverbs_modify_qp(struct ib_uverbs_file *file, attr->alt_ah_attr.ah_flags = cmd.alt_dest.is_global ? IB_AH_GRH : 0; attr->alt_ah_attr.port_num = cmd.alt_dest.port_num; - ret = ib_modify_qp(qp, attr, cmd.attr_mask); + ret = qp->device->modify_qp(qp, attr, cmd.attr_mask, &udata); put_qp_read(qp); @@ -2054,6 +2057,7 @@ ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file, int out_len) { struct ib_uverbs_modify_srq cmd; + struct ib_udata udata; struct ib_srq *srq; struct ib_srq_attr attr; int ret; @@ -2061,6 +2065,9 @@ ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; + INIT_UDATA(&udata, buf + sizeof cmd, NULL, in_len - sizeof cmd, + out_len); + srq = idr_read_srq(cmd.srq_handle, file->ucontext); if (!srq) return -EINVAL; @@ -2068,7 +2075,7 @@ ssize_t ib_uverbs_modify_srq(struct ib_uverbs_file *file, attr.max_wr = cmd.max_wr; attr.srq_limit = cmd.srq_limit; - ret = ib_modify_srq(srq, &attr, cmd.attr_mask); + ret = srq->device->modify_srq(srq, &attr, cmd.attr_mask, &udata); put_srq_read(srq); diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 468999c3880..06f98e9e14f 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -231,7 +231,7 @@ int ib_modify_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr, enum ib_srq_attr_mask srq_attr_mask) { - return srq->device->modify_srq(srq, srq_attr, srq_attr_mask); + return srq->device->modify_srq(srq, srq_attr, srq_attr_mask, NULL); } EXPORT_SYMBOL(ib_modify_srq); @@ -547,7 +547,7 @@ int ib_modify_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr, int qp_attr_mask) { - return qp->device->modify_qp(qp, qp_attr, qp_attr_mask); + return qp->device->modify_qp(qp, qp_attr, qp_attr_mask, NULL); } EXPORT_SYMBOL(ib_modify_qp); diff --git a/drivers/infiniband/hw/ehca/ehca_iverbs.h b/drivers/infiniband/hw/ehca/ehca_iverbs.h index bbdc437f516..319c39d47f3 100644 --- a/drivers/infiniband/hw/ehca/ehca_iverbs.h +++ b/drivers/infiniband/hw/ehca/ehca_iverbs.h @@ -143,7 +143,8 @@ struct ib_qp *ehca_create_qp(struct ib_pd *pd, int ehca_destroy_qp(struct ib_qp *qp); -int ehca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask); +int ehca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, + struct ib_udata *udata); int ehca_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr, int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr); diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c index 4b27bedc6c2..4394123cdbd 100644 --- a/drivers/infiniband/hw/ehca/ehca_qp.c +++ b/drivers/infiniband/hw/ehca/ehca_qp.c @@ -1230,7 +1230,8 @@ modify_qp_exit1: return ret; } -int ehca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) +int ehca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, + struct ib_udata *udata) { struct ehca_qp *my_qp = container_of(ibqp, struct ehca_qp, ib_qp); struct ehca_pd *my_pd = container_of(my_qp->ib_qp.pd, struct ehca_pd, diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index 83e557be591..44c32d2db99 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -426,11 +426,12 @@ void ipath_error_qp(struct ipath_qp *qp) * @ibqp: the queue pair who's attributes we're modifying * @attr: the new attributes * @attr_mask: the mask of attributes to modify + * @udata: user data for ipathverbs.so * * Returns 0 on success, otherwise returns an errno. */ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, - int attr_mask) + int attr_mask, struct ib_udata *udata) { struct ipath_ibdev *dev = to_idev(ibqp->device); struct ipath_qp *qp = to_iqp(ibqp); diff --git a/drivers/infiniband/hw/ipath/ipath_srq.c b/drivers/infiniband/hw/ipath/ipath_srq.c index f760434660b..fa77da6667e 100644 --- a/drivers/infiniband/hw/ipath/ipath_srq.c +++ b/drivers/infiniband/hw/ipath/ipath_srq.c @@ -188,9 +188,11 @@ bail: * @ibsrq: the SRQ to modify * @attr: the new attributes of the SRQ * @attr_mask: indicates which attributes to modify + * @udata: user data for ipathverbs.so */ int ipath_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, - enum ib_srq_attr_mask attr_mask) + enum ib_srq_attr_mask attr_mask, + struct ib_udata *udata) { struct ipath_srq *srq = to_isrq(ibsrq); unsigned long flags; diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h index 2df684727dc..698396778f0 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.h +++ b/drivers/infiniband/hw/ipath/ipath_verbs.h @@ -579,7 +579,7 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd, int ipath_destroy_qp(struct ib_qp *ibqp); int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, - int attr_mask); + int attr_mask, struct ib_udata *udata); int ipath_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, struct ib_qp_init_attr *init_attr); @@ -638,7 +638,8 @@ struct ib_srq *ipath_create_srq(struct ib_pd *ibpd, struct ib_udata *udata); int ipath_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, - enum ib_srq_attr_mask attr_mask); + enum ib_srq_attr_mask attr_mask, + struct ib_udata *udata); int ipath_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr); diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h index f8160b8de09..33bd0b8bfd1 100644 --- a/drivers/infiniband/hw/mthca/mthca_dev.h +++ b/drivers/infiniband/hw/mthca/mthca_dev.h @@ -506,7 +506,7 @@ int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd, struct ib_srq_attr *attr, struct mthca_srq *srq); void mthca_free_srq(struct mthca_dev *dev, struct mthca_srq *srq); int mthca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, - enum ib_srq_attr_mask attr_mask); + enum ib_srq_attr_mask attr_mask, struct ib_udata *udata); int mthca_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr); int mthca_max_srq_sge(struct mthca_dev *dev); void mthca_srq_event(struct mthca_dev *dev, u32 srqn, @@ -521,7 +521,8 @@ void mthca_qp_event(struct mthca_dev *dev, u32 qpn, enum ib_event_type event_type); int mthca_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr); -int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask); +int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, + struct ib_udata *udata); int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, struct ib_send_wr **bad_wr); int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index 2e8f6f36e0a..6d6ba4180a3 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -527,7 +527,8 @@ static int mthca_path_set(struct mthca_dev *dev, struct ib_ah_attr *ah, return 0; } -int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask) +int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, + struct ib_udata *udata) { struct mthca_dev *dev = to_mdev(ibqp->device); struct mthca_qp *qp = to_mqp(ibqp); diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c index b60a9d79ae5..0f316c87bf6 100644 --- a/drivers/infiniband/hw/mthca/mthca_srq.c +++ b/drivers/infiniband/hw/mthca/mthca_srq.c @@ -358,7 +358,7 @@ void mthca_free_srq(struct mthca_dev *dev, struct mthca_srq *srq) } int mthca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, - enum ib_srq_attr_mask attr_mask) + enum ib_srq_attr_mask attr_mask, struct ib_udata *udata) { struct mthca_dev *dev = to_mdev(ibsrq->device); struct mthca_srq *srq = to_msrq(ibsrq); diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index ee1f3a35566..61eed399611 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -888,7 +888,8 @@ struct ib_device { struct ib_udata *udata); int (*modify_srq)(struct ib_srq *srq, struct ib_srq_attr *srq_attr, - enum ib_srq_attr_mask srq_attr_mask); + enum ib_srq_attr_mask srq_attr_mask, + struct ib_udata *udata); int (*query_srq)(struct ib_srq *srq, struct ib_srq_attr *srq_attr); int (*destroy_srq)(struct ib_srq *srq); @@ -900,7 +901,8 @@ struct ib_device { struct ib_udata *udata); int (*modify_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr, - int qp_attr_mask); + int qp_attr_mask, + struct ib_udata *udata); int (*query_qp)(struct ib_qp *qp, struct ib_qp_attr *qp_attr, int qp_attr_mask, -- cgit v1.2.3-70-g09d2 From 373d9915803aebbbf7fd3841efd9dac31c32e148 Mon Sep 17 00:00:00 2001 From: Ralph Campbell Date: Fri, 22 Sep 2006 15:22:26 -0700 Subject: IB/ipath: Performance improvements via mmap of queues Improve performance of userspace post receive, post SRQ receive, and poll CQ operations for ipath by allowing userspace to directly mmap() receive queues and completion queues. This eliminates the copying between userspace and the kernel in the data path. Signed-off-by: Ralph Campbell Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/Makefile | 1 + drivers/infiniband/hw/ipath/ipath_cq.c | 176 ++++++++++++++++------ drivers/infiniband/hw/ipath/ipath_mmap.c | 122 +++++++++++++++ drivers/infiniband/hw/ipath/ipath_qp.c | 156 +++++++++++++------ drivers/infiniband/hw/ipath/ipath_ruc.c | 138 +++++++++++------ drivers/infiniband/hw/ipath/ipath_srq.c | 240 +++++++++++++++++++----------- drivers/infiniband/hw/ipath/ipath_ud.c | 169 +++++++++++++-------- drivers/infiniband/hw/ipath/ipath_verbs.c | 50 ++----- drivers/infiniband/hw/ipath/ipath_verbs.h | 115 +++++++------- 9 files changed, 785 insertions(+), 382 deletions(-) create mode 100644 drivers/infiniband/hw/ipath/ipath_mmap.c (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/Makefile b/drivers/infiniband/hw/ipath/Makefile index b0bf7286413..6bb43474d10 100644 --- a/drivers/infiniband/hw/ipath/Makefile +++ b/drivers/infiniband/hw/ipath/Makefile @@ -25,6 +25,7 @@ ib_ipath-y := \ ipath_cq.o \ ipath_keys.o \ ipath_mad.o \ + ipath_mmap.o \ ipath_mr.o \ ipath_qp.o \ ipath_rc.o \ diff --git a/drivers/infiniband/hw/ipath/ipath_cq.c b/drivers/infiniband/hw/ipath/ipath_cq.c index 3efee341c9b..3c4c198a451 100644 --- a/drivers/infiniband/hw/ipath/ipath_cq.c +++ b/drivers/infiniband/hw/ipath/ipath_cq.c @@ -42,20 +42,28 @@ * @entry: work completion entry to add * @sig: true if @entry is a solicitated entry * - * This may be called with one of the qp->s_lock or qp->r_rq.lock held. + * This may be called with qp->s_lock held. */ void ipath_cq_enter(struct ipath_cq *cq, struct ib_wc *entry, int solicited) { + struct ipath_cq_wc *wc = cq->queue; unsigned long flags; + u32 head; u32 next; spin_lock_irqsave(&cq->lock, flags); - if (cq->head == cq->ibcq.cqe) + /* + * Note that the head pointer might be writable by user processes. + * Take care to verify it is a sane value. + */ + head = wc->head; + if (head >= (unsigned) cq->ibcq.cqe) { + head = cq->ibcq.cqe; next = 0; - else - next = cq->head + 1; - if (unlikely(next == cq->tail)) { + } else + next = head + 1; + if (unlikely(next == wc->tail)) { spin_unlock_irqrestore(&cq->lock, flags); if (cq->ibcq.event_handler) { struct ib_event ev; @@ -67,8 +75,8 @@ void ipath_cq_enter(struct ipath_cq *cq, struct ib_wc *entry, int solicited) } return; } - cq->queue[cq->head] = *entry; - cq->head = next; + wc->queue[head] = *entry; + wc->head = next; if (cq->notify == IB_CQ_NEXT_COMP || (cq->notify == IB_CQ_SOLICITED && solicited)) { @@ -101,19 +109,20 @@ void ipath_cq_enter(struct ipath_cq *cq, struct ib_wc *entry, int solicited) int ipath_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry) { struct ipath_cq *cq = to_icq(ibcq); + struct ipath_cq_wc *wc = cq->queue; unsigned long flags; int npolled; spin_lock_irqsave(&cq->lock, flags); for (npolled = 0; npolled < num_entries; ++npolled, ++entry) { - if (cq->tail == cq->head) + if (wc->tail == wc->head) break; - *entry = cq->queue[cq->tail]; - if (cq->tail == cq->ibcq.cqe) - cq->tail = 0; + *entry = wc->queue[wc->tail]; + if (wc->tail >= cq->ibcq.cqe) + wc->tail = 0; else - cq->tail++; + wc->tail++; } spin_unlock_irqrestore(&cq->lock, flags); @@ -160,38 +169,74 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries, { struct ipath_ibdev *dev = to_idev(ibdev); struct ipath_cq *cq; - struct ib_wc *wc; + struct ipath_cq_wc *wc; struct ib_cq *ret; if (entries > ib_ipath_max_cqes) { ret = ERR_PTR(-EINVAL); - goto bail; + goto done; } if (dev->n_cqs_allocated == ib_ipath_max_cqs) { ret = ERR_PTR(-ENOMEM); - goto bail; + goto done; } - /* - * Need to use vmalloc() if we want to support large #s of - * entries. - */ + /* Allocate the completion queue structure. */ cq = kmalloc(sizeof(*cq), GFP_KERNEL); if (!cq) { ret = ERR_PTR(-ENOMEM); - goto bail; + goto done; } /* - * Need to use vmalloc() if we want to support large #s of entries. + * Allocate the completion queue entries and head/tail pointers. + * This is allocated separately so that it can be resized and + * also mapped into user space. + * We need to use vmalloc() in order to support mmap and large + * numbers of entries. */ - wc = vmalloc(sizeof(*wc) * (entries + 1)); + wc = vmalloc_user(sizeof(*wc) + sizeof(struct ib_wc) * entries); if (!wc) { - kfree(cq); ret = ERR_PTR(-ENOMEM); - goto bail; + goto bail_cq; } + + /* + * Return the address of the WC as the offset to mmap. + * See ipath_mmap() for details. + */ + if (udata && udata->outlen >= sizeof(__u64)) { + struct ipath_mmap_info *ip; + __u64 offset = (__u64) wc; + int err; + + err = ib_copy_to_udata(udata, &offset, sizeof(offset)); + if (err) { + ret = ERR_PTR(err); + goto bail_wc; + } + + /* Allocate info for ipath_mmap(). */ + ip = kmalloc(sizeof(*ip), GFP_KERNEL); + if (!ip) { + ret = ERR_PTR(-ENOMEM); + goto bail_wc; + } + cq->ip = ip; + ip->context = context; + ip->obj = wc; + kref_init(&ip->ref); + ip->mmap_cnt = 0; + ip->size = PAGE_ALIGN(sizeof(*wc) + + sizeof(struct ib_wc) * entries); + spin_lock_irq(&dev->pending_lock); + ip->next = dev->pending_mmaps; + dev->pending_mmaps = ip; + spin_unlock_irq(&dev->pending_lock); + } else + cq->ip = NULL; + /* * ib_create_cq() will initialize cq->ibcq except for cq->ibcq.cqe. * The number of entries should be >= the number requested or return @@ -202,15 +247,22 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries, cq->triggered = 0; spin_lock_init(&cq->lock); tasklet_init(&cq->comptask, send_complete, (unsigned long)cq); - cq->head = 0; - cq->tail = 0; + wc->head = 0; + wc->tail = 0; cq->queue = wc; ret = &cq->ibcq; dev->n_cqs_allocated++; + goto done; -bail: +bail_wc: + vfree(wc); + +bail_cq: + kfree(cq); + +done: return ret; } @@ -229,7 +281,10 @@ int ipath_destroy_cq(struct ib_cq *ibcq) tasklet_kill(&cq->comptask); dev->n_cqs_allocated--; - vfree(cq->queue); + if (cq->ip) + kref_put(&cq->ip->ref, ipath_release_mmap_info); + else + vfree(cq->queue); kfree(cq); return 0; @@ -253,7 +308,7 @@ int ipath_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify notify) spin_lock_irqsave(&cq->lock, flags); /* * Don't change IB_CQ_NEXT_COMP to IB_CQ_SOLICITED but allow - * any other transitions. + * any other transitions (see C11-31 and C11-32 in ch. 11.4.2.2). */ if (cq->notify != IB_CQ_NEXT_COMP) cq->notify = notify; @@ -264,46 +319,81 @@ int ipath_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify notify) int ipath_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata) { struct ipath_cq *cq = to_icq(ibcq); - struct ib_wc *wc, *old_wc; - u32 n; + struct ipath_cq_wc *old_wc = cq->queue; + struct ipath_cq_wc *wc; + u32 head, tail, n; int ret; /* * Need to use vmalloc() if we want to support large #s of entries. */ - wc = vmalloc(sizeof(*wc) * (cqe + 1)); + wc = vmalloc_user(sizeof(*wc) + sizeof(struct ib_wc) * cqe); if (!wc) { ret = -ENOMEM; goto bail; } + /* + * Return the address of the WC as the offset to mmap. + * See ipath_mmap() for details. + */ + if (udata && udata->outlen >= sizeof(__u64)) { + __u64 offset = (__u64) wc; + + ret = ib_copy_to_udata(udata, &offset, sizeof(offset)); + if (ret) + goto bail; + } + spin_lock_irq(&cq->lock); - if (cq->head < cq->tail) - n = cq->ibcq.cqe + 1 + cq->head - cq->tail; + /* + * Make sure head and tail are sane since they + * might be user writable. + */ + head = old_wc->head; + if (head > (u32) cq->ibcq.cqe) + head = (u32) cq->ibcq.cqe; + tail = old_wc->tail; + if (tail > (u32) cq->ibcq.cqe) + tail = (u32) cq->ibcq.cqe; + if (head < tail) + n = cq->ibcq.cqe + 1 + head - tail; else - n = cq->head - cq->tail; + n = head - tail; if (unlikely((u32)cqe < n)) { spin_unlock_irq(&cq->lock); vfree(wc); ret = -EOVERFLOW; goto bail; } - for (n = 0; cq->tail != cq->head; n++) { - wc[n] = cq->queue[cq->tail]; - if (cq->tail == cq->ibcq.cqe) - cq->tail = 0; + for (n = 0; tail != head; n++) { + wc->queue[n] = old_wc->queue[tail]; + if (tail == (u32) cq->ibcq.cqe) + tail = 0; else - cq->tail++; + tail++; } cq->ibcq.cqe = cqe; - cq->head = n; - cq->tail = 0; - old_wc = cq->queue; + wc->head = n; + wc->tail = 0; cq->queue = wc; spin_unlock_irq(&cq->lock); vfree(old_wc); + if (cq->ip) { + struct ipath_ibdev *dev = to_idev(ibcq->device); + struct ipath_mmap_info *ip = cq->ip; + + ip->obj = wc; + ip->size = PAGE_ALIGN(sizeof(*wc) + + sizeof(struct ib_wc) * cqe); + spin_lock_irq(&dev->pending_lock); + ip->next = dev->pending_mmaps; + dev->pending_mmaps = ip; + spin_unlock_irq(&dev->pending_lock); + } + ret = 0; bail: diff --git a/drivers/infiniband/hw/ipath/ipath_mmap.c b/drivers/infiniband/hw/ipath/ipath_mmap.c new file mode 100644 index 00000000000..11b7378ff21 --- /dev/null +++ b/drivers/infiniband/hw/ipath/ipath_mmap.c @@ -0,0 +1,122 @@ +/* + * Copyright (c) 2006 QLogic, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include +#include +#include +#include +#include +#include + +#include "ipath_verbs.h" + +/** + * ipath_release_mmap_info - free mmap info structure + * @ref: a pointer to the kref within struct ipath_mmap_info + */ +void ipath_release_mmap_info(struct kref *ref) +{ + struct ipath_mmap_info *ip = + container_of(ref, struct ipath_mmap_info, ref); + + vfree(ip->obj); + kfree(ip); +} + +/* + * open and close keep track of how many times the CQ is mapped, + * to avoid releasing it. + */ +static void ipath_vma_open(struct vm_area_struct *vma) +{ + struct ipath_mmap_info *ip = vma->vm_private_data; + + kref_get(&ip->ref); + ip->mmap_cnt++; +} + +static void ipath_vma_close(struct vm_area_struct *vma) +{ + struct ipath_mmap_info *ip = vma->vm_private_data; + + ip->mmap_cnt--; + kref_put(&ip->ref, ipath_release_mmap_info); +} + +static struct vm_operations_struct ipath_vm_ops = { + .open = ipath_vma_open, + .close = ipath_vma_close, +}; + +/** + * ipath_mmap - create a new mmap region + * @context: the IB user context of the process making the mmap() call + * @vma: the VMA to be initialized + * Return zero if the mmap is OK. Otherwise, return an errno. + */ +int ipath_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) +{ + struct ipath_ibdev *dev = to_idev(context->device); + unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; + unsigned long size = vma->vm_end - vma->vm_start; + struct ipath_mmap_info *ip, **pp; + int ret = -EINVAL; + + /* + * Search the device's list of objects waiting for a mmap call. + * Normally, this list is very short since a call to create a + * CQ, QP, or SRQ is soon followed by a call to mmap(). + */ + spin_lock_irq(&dev->pending_lock); + for (pp = &dev->pending_mmaps; (ip = *pp); pp = &ip->next) { + /* Only the creator is allowed to mmap the object */ + if (context != ip->context || (void *) offset != ip->obj) + continue; + /* Don't allow a mmap larger than the object. */ + if (size > ip->size) + break; + + *pp = ip->next; + spin_unlock_irq(&dev->pending_lock); + + ret = remap_vmalloc_range(vma, ip->obj, 0); + if (ret) + goto done; + vma->vm_ops = &ipath_vm_ops; + vma->vm_private_data = ip; + ipath_vma_open(vma); + goto done; + } + spin_unlock_irq(&dev->pending_lock); +done: + return ret; +} diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index 44c32d2db99..1ccfc909db1 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -35,7 +35,7 @@ #include #include "ipath_verbs.h" -#include "ipath_common.h" +#include "ipath_kernel.h" #define BITS_PER_PAGE (PAGE_SIZE*BITS_PER_BYTE) #define BITS_PER_PAGE_MASK (BITS_PER_PAGE-1) @@ -44,19 +44,6 @@ #define find_next_offset(map, off) find_next_zero_bit((map)->page, \ BITS_PER_PAGE, off) -#define TRANS_INVALID 0 -#define TRANS_ANY2RST 1 -#define TRANS_RST2INIT 2 -#define TRANS_INIT2INIT 3 -#define TRANS_INIT2RTR 4 -#define TRANS_RTR2RTS 5 -#define TRANS_RTS2RTS 6 -#define TRANS_SQERR2RTS 7 -#define TRANS_ANY2ERR 8 -#define TRANS_RTS2SQD 9 /* XXX Wait for expected ACKs & signal event */ -#define TRANS_SQD2SQD 10 /* error if not drained & parameter change */ -#define TRANS_SQD2RTS 11 /* error if not drained */ - /* * Convert the AETH credit code into the number of credits. */ @@ -355,8 +342,10 @@ static void ipath_reset_qp(struct ipath_qp *qp) qp->s_last = 0; qp->s_ssn = 1; qp->s_lsn = 0; - qp->r_rq.head = 0; - qp->r_rq.tail = 0; + if (qp->r_rq.wq) { + qp->r_rq.wq->head = 0; + qp->r_rq.wq->tail = 0; + } qp->r_reuse_sge = 0; } @@ -410,15 +399,32 @@ void ipath_error_qp(struct ipath_qp *qp) qp->s_hdrwords = 0; qp->s_ack_state = IB_OPCODE_RC_ACKNOWLEDGE; - wc.opcode = IB_WC_RECV; - spin_lock(&qp->r_rq.lock); - while (qp->r_rq.tail != qp->r_rq.head) { - wc.wr_id = get_rwqe_ptr(&qp->r_rq, qp->r_rq.tail)->wr_id; - if (++qp->r_rq.tail >= qp->r_rq.size) - qp->r_rq.tail = 0; - ipath_cq_enter(to_icq(qp->ibqp.recv_cq), &wc, 1); + if (qp->r_rq.wq) { + struct ipath_rwq *wq; + u32 head; + u32 tail; + + spin_lock(&qp->r_rq.lock); + + /* sanity check pointers before trusting them */ + wq = qp->r_rq.wq; + head = wq->head; + if (head >= qp->r_rq.size) + head = 0; + tail = wq->tail; + if (tail >= qp->r_rq.size) + tail = 0; + wc.opcode = IB_WC_RECV; + while (tail != head) { + wc.wr_id = get_rwqe_ptr(&qp->r_rq, tail)->wr_id; + if (++tail >= qp->r_rq.size) + tail = 0; + ipath_cq_enter(to_icq(qp->ibqp.recv_cq), &wc, 1); + } + wq->tail = tail; + + spin_unlock(&qp->r_rq.lock); } - spin_unlock(&qp->r_rq.lock); } /** @@ -544,7 +550,7 @@ int ipath_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, attr->dest_qp_num = qp->remote_qpn; attr->qp_access_flags = qp->qp_access_flags; attr->cap.max_send_wr = qp->s_size - 1; - attr->cap.max_recv_wr = qp->r_rq.size - 1; + attr->cap.max_recv_wr = qp->ibqp.srq ? 0 : qp->r_rq.size - 1; attr->cap.max_send_sge = qp->s_max_sge; attr->cap.max_recv_sge = qp->r_rq.max_sge; attr->cap.max_inline_data = 0; @@ -597,13 +603,23 @@ __be32 ipath_compute_aeth(struct ipath_qp *qp) } else { u32 min, max, x; u32 credits; - + struct ipath_rwq *wq = qp->r_rq.wq; + u32 head; + u32 tail; + + /* sanity check pointers before trusting them */ + head = wq->head; + if (head >= qp->r_rq.size) + head = 0; + tail = wq->tail; + if (tail >= qp->r_rq.size) + tail = 0; /* * Compute the number of credits available (RWQEs). * XXX Not holding the r_rq.lock here so there is a small * chance that the pair of reads are not atomic. */ - credits = qp->r_rq.head - qp->r_rq.tail; + credits = head - tail; if ((int)credits < 0) credits += qp->r_rq.size; /* @@ -680,27 +696,37 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd, case IB_QPT_UD: case IB_QPT_SMI: case IB_QPT_GSI: - qp = kmalloc(sizeof(*qp), GFP_KERNEL); + sz = sizeof(*qp); + if (init_attr->srq) { + struct ipath_srq *srq = to_isrq(init_attr->srq); + + sz += sizeof(*qp->r_sg_list) * + srq->rq.max_sge; + } else + sz += sizeof(*qp->r_sg_list) * + init_attr->cap.max_recv_sge; + qp = kmalloc(sz, GFP_KERNEL); if (!qp) { - vfree(swq); ret = ERR_PTR(-ENOMEM); - goto bail; + goto bail_swq; } if (init_attr->srq) { + sz = 0; qp->r_rq.size = 0; qp->r_rq.max_sge = 0; qp->r_rq.wq = NULL; + init_attr->cap.max_recv_wr = 0; + init_attr->cap.max_recv_sge = 0; } else { qp->r_rq.size = init_attr->cap.max_recv_wr + 1; qp->r_rq.max_sge = init_attr->cap.max_recv_sge; - sz = (sizeof(struct ipath_sge) * qp->r_rq.max_sge) + + sz = (sizeof(struct ib_sge) * qp->r_rq.max_sge) + sizeof(struct ipath_rwqe); - qp->r_rq.wq = vmalloc(qp->r_rq.size * sz); + qp->r_rq.wq = vmalloc_user(sizeof(struct ipath_rwq) + + qp->r_rq.size * sz); if (!qp->r_rq.wq) { - kfree(qp); - vfree(swq); ret = ERR_PTR(-ENOMEM); - goto bail; + goto bail_qp; } } @@ -726,12 +752,10 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd, err = ipath_alloc_qpn(&dev->qp_table, qp, init_attr->qp_type); if (err) { - vfree(swq); - vfree(qp->r_rq.wq); - kfree(qp); ret = ERR_PTR(err); - goto bail; + goto bail_rwq; } + qp->ip = NULL; ipath_reset_qp(qp); /* Tell the core driver that the kernel SMA is present. */ @@ -748,8 +772,51 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd, init_attr->cap.max_inline_data = 0; + /* + * Return the address of the RWQ as the offset to mmap. + * See ipath_mmap() for details. + */ + if (udata && udata->outlen >= sizeof(__u64)) { + struct ipath_mmap_info *ip; + __u64 offset = (__u64) qp->r_rq.wq; + int err; + + err = ib_copy_to_udata(udata, &offset, sizeof(offset)); + if (err) { + ret = ERR_PTR(err); + goto bail_rwq; + } + + if (qp->r_rq.wq) { + /* Allocate info for ipath_mmap(). */ + ip = kmalloc(sizeof(*ip), GFP_KERNEL); + if (!ip) { + ret = ERR_PTR(-ENOMEM); + goto bail_rwq; + } + qp->ip = ip; + ip->context = ibpd->uobject->context; + ip->obj = qp->r_rq.wq; + kref_init(&ip->ref); + ip->mmap_cnt = 0; + ip->size = PAGE_ALIGN(sizeof(struct ipath_rwq) + + qp->r_rq.size * sz); + spin_lock_irq(&dev->pending_lock); + ip->next = dev->pending_mmaps; + dev->pending_mmaps = ip; + spin_unlock_irq(&dev->pending_lock); + } + } + ret = &qp->ibqp; + goto bail; +bail_rwq: + vfree(qp->r_rq.wq); +bail_qp: + kfree(qp); +bail_swq: + vfree(swq); bail: return ret; } @@ -773,11 +840,9 @@ int ipath_destroy_qp(struct ib_qp *ibqp) if (qp->ibqp.qp_type == IB_QPT_SMI) ipath_layer_set_verbs_flags(dev->dd, 0); - spin_lock_irqsave(&qp->r_rq.lock, flags); - spin_lock(&qp->s_lock); + spin_lock_irqsave(&qp->s_lock, flags); qp->state = IB_QPS_ERR; - spin_unlock(&qp->s_lock); - spin_unlock_irqrestore(&qp->r_rq.lock, flags); + spin_unlock_irqrestore(&qp->s_lock, flags); /* Stop the sending tasklet. */ tasklet_kill(&qp->s_task); @@ -798,8 +863,11 @@ int ipath_destroy_qp(struct ib_qp *ibqp) if (atomic_read(&qp->refcount) != 0) ipath_free_qp(&dev->qp_table, qp); + if (qp->ip) + kref_put(&qp->ip->ref, ipath_release_mmap_info); + else + vfree(qp->r_rq.wq); vfree(qp->s_wq); - vfree(qp->r_rq.wq); kfree(qp); return 0; } diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c index 772bc59fb85..dd09420d677 100644 --- a/drivers/infiniband/hw/ipath/ipath_ruc.c +++ b/drivers/infiniband/hw/ipath/ipath_ruc.c @@ -32,7 +32,7 @@ */ #include "ipath_verbs.h" -#include "ipath_common.h" +#include "ipath_kernel.h" /* * Convert the AETH RNR timeout code into the number of milliseconds. @@ -106,6 +106,54 @@ void ipath_insert_rnr_queue(struct ipath_qp *qp) spin_unlock_irqrestore(&dev->pending_lock, flags); } +static int init_sge(struct ipath_qp *qp, struct ipath_rwqe *wqe) +{ + struct ipath_ibdev *dev = to_idev(qp->ibqp.device); + int user = to_ipd(qp->ibqp.pd)->user; + int i, j, ret; + struct ib_wc wc; + + qp->r_len = 0; + for (i = j = 0; i < wqe->num_sge; i++) { + if (wqe->sg_list[i].length == 0) + continue; + /* Check LKEY */ + if ((user && wqe->sg_list[i].lkey == 0) || + !ipath_lkey_ok(&dev->lk_table, + &qp->r_sg_list[j], &wqe->sg_list[i], + IB_ACCESS_LOCAL_WRITE)) + goto bad_lkey; + qp->r_len += wqe->sg_list[i].length; + j++; + } + qp->r_sge.sge = qp->r_sg_list[0]; + qp->r_sge.sg_list = qp->r_sg_list + 1; + qp->r_sge.num_sge = j; + ret = 1; + goto bail; + +bad_lkey: + wc.wr_id = wqe->wr_id; + wc.status = IB_WC_LOC_PROT_ERR; + wc.opcode = IB_WC_RECV; + wc.vendor_err = 0; + wc.byte_len = 0; + wc.imm_data = 0; + wc.qp_num = qp->ibqp.qp_num; + wc.src_qp = 0; + wc.wc_flags = 0; + wc.pkey_index = 0; + wc.slid = 0; + wc.sl = 0; + wc.dlid_path_bits = 0; + wc.port_num = 0; + /* Signal solicited completion event. */ + ipath_cq_enter(to_icq(qp->ibqp.recv_cq), &wc, 1); + ret = 0; +bail: + return ret; +} + /** * ipath_get_rwqe - copy the next RWQE into the QP's RWQE * @qp: the QP @@ -119,71 +167,71 @@ int ipath_get_rwqe(struct ipath_qp *qp, int wr_id_only) { unsigned long flags; struct ipath_rq *rq; + struct ipath_rwq *wq; struct ipath_srq *srq; struct ipath_rwqe *wqe; - int ret = 1; + void (*handler)(struct ib_event *, void *); + u32 tail; + int ret; - if (!qp->ibqp.srq) { + if (qp->ibqp.srq) { + srq = to_isrq(qp->ibqp.srq); + handler = srq->ibsrq.event_handler; + rq = &srq->rq; + } else { + srq = NULL; + handler = NULL; rq = &qp->r_rq; - spin_lock_irqsave(&rq->lock, flags); - - if (unlikely(rq->tail == rq->head)) { - ret = 0; - goto done; - } - wqe = get_rwqe_ptr(rq, rq->tail); - qp->r_wr_id = wqe->wr_id; - if (!wr_id_only) { - qp->r_sge.sge = wqe->sg_list[0]; - qp->r_sge.sg_list = wqe->sg_list + 1; - qp->r_sge.num_sge = wqe->num_sge; - qp->r_len = wqe->length; - } - if (++rq->tail >= rq->size) - rq->tail = 0; - goto done; } - srq = to_isrq(qp->ibqp.srq); - rq = &srq->rq; spin_lock_irqsave(&rq->lock, flags); - - if (unlikely(rq->tail == rq->head)) { - ret = 0; - goto done; - } - wqe = get_rwqe_ptr(rq, rq->tail); + wq = rq->wq; + tail = wq->tail; + /* Validate tail before using it since it is user writable. */ + if (tail >= rq->size) + tail = 0; + do { + if (unlikely(tail == wq->head)) { + spin_unlock_irqrestore(&rq->lock, flags); + ret = 0; + goto bail; + } + wqe = get_rwqe_ptr(rq, tail); + if (++tail >= rq->size) + tail = 0; + } while (!wr_id_only && !init_sge(qp, wqe)); qp->r_wr_id = wqe->wr_id; - if (!wr_id_only) { - qp->r_sge.sge = wqe->sg_list[0]; - qp->r_sge.sg_list = wqe->sg_list + 1; - qp->r_sge.num_sge = wqe->num_sge; - qp->r_len = wqe->length; - } - if (++rq->tail >= rq->size) - rq->tail = 0; - if (srq->ibsrq.event_handler) { - struct ib_event ev; + wq->tail = tail; + + ret = 1; + if (handler) { u32 n; - if (rq->head < rq->tail) - n = rq->size + rq->head - rq->tail; + /* + * validate head pointer value and compute + * the number of remaining WQEs. + */ + n = wq->head; + if (n >= rq->size) + n = 0; + if (n < tail) + n += rq->size - tail; else - n = rq->head - rq->tail; + n -= tail; if (n < srq->limit) { + struct ib_event ev; + srq->limit = 0; spin_unlock_irqrestore(&rq->lock, flags); ev.device = qp->ibqp.device; ev.element.srq = qp->ibqp.srq; ev.event = IB_EVENT_SRQ_LIMIT_REACHED; - srq->ibsrq.event_handler(&ev, - srq->ibsrq.srq_context); + handler(&ev, srq->ibsrq.srq_context); goto bail; } } - -done: spin_unlock_irqrestore(&rq->lock, flags); + bail: return ret; } diff --git a/drivers/infiniband/hw/ipath/ipath_srq.c b/drivers/infiniband/hw/ipath/ipath_srq.c index fa77da6667e..941e866d951 100644 --- a/drivers/infiniband/hw/ipath/ipath_srq.c +++ b/drivers/infiniband/hw/ipath/ipath_srq.c @@ -48,66 +48,39 @@ int ipath_post_srq_receive(struct ib_srq *ibsrq, struct ib_recv_wr *wr, struct ib_recv_wr **bad_wr) { struct ipath_srq *srq = to_isrq(ibsrq); - struct ipath_ibdev *dev = to_idev(ibsrq->device); + struct ipath_rwq *wq; unsigned long flags; int ret; for (; wr; wr = wr->next) { struct ipath_rwqe *wqe; u32 next; - int i, j; + int i; - if (wr->num_sge > srq->rq.max_sge) { + if ((unsigned) wr->num_sge > srq->rq.max_sge) { *bad_wr = wr; ret = -ENOMEM; goto bail; } spin_lock_irqsave(&srq->rq.lock, flags); - next = srq->rq.head + 1; + wq = srq->rq.wq; + next = wq->head + 1; if (next >= srq->rq.size) next = 0; - if (next == srq->rq.tail) { + if (next == wq->tail) { spin_unlock_irqrestore(&srq->rq.lock, flags); *bad_wr = wr; ret = -ENOMEM; goto bail; } - wqe = get_rwqe_ptr(&srq->rq, srq->rq.head); + wqe = get_rwqe_ptr(&srq->rq, wq->head); wqe->wr_id = wr->wr_id; - wqe->sg_list[0].mr = NULL; - wqe->sg_list[0].vaddr = NULL; - wqe->sg_list[0].length = 0; - wqe->sg_list[0].sge_length = 0; - wqe->length = 0; - for (i = 0, j = 0; i < wr->num_sge; i++) { - /* Check LKEY */ - if (to_ipd(srq->ibsrq.pd)->user && - wr->sg_list[i].lkey == 0) { - spin_unlock_irqrestore(&srq->rq.lock, - flags); - *bad_wr = wr; - ret = -EINVAL; - goto bail; - } - if (wr->sg_list[i].length == 0) - continue; - if (!ipath_lkey_ok(&dev->lk_table, - &wqe->sg_list[j], - &wr->sg_list[i], - IB_ACCESS_LOCAL_WRITE)) { - spin_unlock_irqrestore(&srq->rq.lock, - flags); - *bad_wr = wr; - ret = -EINVAL; - goto bail; - } - wqe->length += wr->sg_list[i].length; - j++; - } - wqe->num_sge = j; - srq->rq.head = next; + wqe->num_sge = wr->num_sge; + for (i = 0; i < wr->num_sge; i++) + wqe->sg_list[i] = wr->sg_list[i]; + wq->head = next; spin_unlock_irqrestore(&srq->rq.lock, flags); } ret = 0; @@ -133,53 +106,95 @@ struct ib_srq *ipath_create_srq(struct ib_pd *ibpd, if (dev->n_srqs_allocated == ib_ipath_max_srqs) { ret = ERR_PTR(-ENOMEM); - goto bail; + goto done; } if (srq_init_attr->attr.max_wr == 0) { ret = ERR_PTR(-EINVAL); - goto bail; + goto done; } if ((srq_init_attr->attr.max_sge > ib_ipath_max_srq_sges) || (srq_init_attr->attr.max_wr > ib_ipath_max_srq_wrs)) { ret = ERR_PTR(-EINVAL); - goto bail; + goto done; } srq = kmalloc(sizeof(*srq), GFP_KERNEL); if (!srq) { ret = ERR_PTR(-ENOMEM); - goto bail; + goto done; } /* * Need to use vmalloc() if we want to support large #s of entries. */ srq->rq.size = srq_init_attr->attr.max_wr + 1; - sz = sizeof(struct ipath_sge) * srq_init_attr->attr.max_sge + + srq->rq.max_sge = srq_init_attr->attr.max_sge; + sz = sizeof(struct ib_sge) * srq->rq.max_sge + sizeof(struct ipath_rwqe); - srq->rq.wq = vmalloc(srq->rq.size * sz); + srq->rq.wq = vmalloc_user(sizeof(struct ipath_rwq) + srq->rq.size * sz); if (!srq->rq.wq) { - kfree(srq); ret = ERR_PTR(-ENOMEM); - goto bail; + goto bail_srq; } + /* + * Return the address of the RWQ as the offset to mmap. + * See ipath_mmap() for details. + */ + if (udata && udata->outlen >= sizeof(__u64)) { + struct ipath_mmap_info *ip; + __u64 offset = (__u64) srq->rq.wq; + int err; + + err = ib_copy_to_udata(udata, &offset, sizeof(offset)); + if (err) { + ret = ERR_PTR(err); + goto bail_wq; + } + + /* Allocate info for ipath_mmap(). */ + ip = kmalloc(sizeof(*ip), GFP_KERNEL); + if (!ip) { + ret = ERR_PTR(-ENOMEM); + goto bail_wq; + } + srq->ip = ip; + ip->context = ibpd->uobject->context; + ip->obj = srq->rq.wq; + kref_init(&ip->ref); + ip->mmap_cnt = 0; + ip->size = PAGE_ALIGN(sizeof(struct ipath_rwq) + + srq->rq.size * sz); + spin_lock_irq(&dev->pending_lock); + ip->next = dev->pending_mmaps; + dev->pending_mmaps = ip; + spin_unlock_irq(&dev->pending_lock); + } else + srq->ip = NULL; + /* * ib_create_srq() will initialize srq->ibsrq. */ spin_lock_init(&srq->rq.lock); - srq->rq.head = 0; - srq->rq.tail = 0; + srq->rq.wq->head = 0; + srq->rq.wq->tail = 0; srq->rq.max_sge = srq_init_attr->attr.max_sge; srq->limit = srq_init_attr->attr.srq_limit; + dev->n_srqs_allocated++; + ret = &srq->ibsrq; + goto done; - dev->n_srqs_allocated++; +bail_wq: + vfree(srq->rq.wq); -bail: +bail_srq: + kfree(srq); + +done: return ret; } @@ -195,78 +210,123 @@ int ipath_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, struct ib_udata *udata) { struct ipath_srq *srq = to_isrq(ibsrq); - unsigned long flags; - int ret; + int ret = 0; - if (attr_mask & IB_SRQ_MAX_WR) - if ((attr->max_wr > ib_ipath_max_srq_wrs) || - (attr->max_sge > srq->rq.max_sge)) { - ret = -EINVAL; - goto bail; - } + if (attr_mask & IB_SRQ_MAX_WR) { + struct ipath_rwq *owq; + struct ipath_rwq *wq; + struct ipath_rwqe *p; + u32 sz, size, n, head, tail; - if (attr_mask & IB_SRQ_LIMIT) - if (attr->srq_limit >= srq->rq.size) { + /* Check that the requested sizes are below the limits. */ + if ((attr->max_wr > ib_ipath_max_srq_wrs) || + ((attr_mask & IB_SRQ_LIMIT) ? + attr->srq_limit : srq->limit) > attr->max_wr) { ret = -EINVAL; goto bail; } - if (attr_mask & IB_SRQ_MAX_WR) { - struct ipath_rwqe *wq, *p; - u32 sz, size, n; - sz = sizeof(struct ipath_rwqe) + - attr->max_sge * sizeof(struct ipath_sge); + srq->rq.max_sge * sizeof(struct ib_sge); size = attr->max_wr + 1; - wq = vmalloc(size * sz); + wq = vmalloc_user(sizeof(struct ipath_rwq) + size * sz); if (!wq) { ret = -ENOMEM; goto bail; } - spin_lock_irqsave(&srq->rq.lock, flags); - if (srq->rq.head < srq->rq.tail) - n = srq->rq.size + srq->rq.head - srq->rq.tail; + /* + * Return the address of the RWQ as the offset to mmap. + * See ipath_mmap() for details. + */ + if (udata && udata->inlen >= sizeof(__u64)) { + __u64 offset_addr; + __u64 offset = (__u64) wq; + + ret = ib_copy_from_udata(&offset_addr, udata, + sizeof(offset_addr)); + if (ret) { + vfree(wq); + goto bail; + } + udata->outbuf = (void __user *) offset_addr; + ret = ib_copy_to_udata(udata, &offset, + sizeof(offset)); + if (ret) { + vfree(wq); + goto bail; + } + } + + spin_lock_irq(&srq->rq.lock); + /* + * validate head pointer value and compute + * the number of remaining WQEs. + */ + owq = srq->rq.wq; + head = owq->head; + if (head >= srq->rq.size) + head = 0; + tail = owq->tail; + if (tail >= srq->rq.size) + tail = 0; + n = head; + if (n < tail) + n += srq->rq.size - tail; else - n = srq->rq.head - srq->rq.tail; - if (size <= n || size <= srq->limit) { - spin_unlock_irqrestore(&srq->rq.lock, flags); + n -= tail; + if (size <= n) { + spin_unlock_irq(&srq->rq.lock); vfree(wq); ret = -EINVAL; goto bail; } n = 0; - p = wq; - while (srq->rq.tail != srq->rq.head) { + p = wq->wq; + while (tail != head) { struct ipath_rwqe *wqe; int i; - wqe = get_rwqe_ptr(&srq->rq, srq->rq.tail); + wqe = get_rwqe_ptr(&srq->rq, tail); p->wr_id = wqe->wr_id; - p->length = wqe->length; p->num_sge = wqe->num_sge; for (i = 0; i < wqe->num_sge; i++) p->sg_list[i] = wqe->sg_list[i]; n++; p = (struct ipath_rwqe *)((char *) p + sz); - if (++srq->rq.tail >= srq->rq.size) - srq->rq.tail = 0; + if (++tail >= srq->rq.size) + tail = 0; } - vfree(srq->rq.wq); srq->rq.wq = wq; srq->rq.size = size; - srq->rq.head = n; - srq->rq.tail = 0; - srq->rq.max_sge = attr->max_sge; - spin_unlock_irqrestore(&srq->rq.lock, flags); - } - - if (attr_mask & IB_SRQ_LIMIT) { - spin_lock_irqsave(&srq->rq.lock, flags); - srq->limit = attr->srq_limit; - spin_unlock_irqrestore(&srq->rq.lock, flags); + wq->head = n; + wq->tail = 0; + if (attr_mask & IB_SRQ_LIMIT) + srq->limit = attr->srq_limit; + spin_unlock_irq(&srq->rq.lock); + + vfree(owq); + + if (srq->ip) { + struct ipath_mmap_info *ip = srq->ip; + struct ipath_ibdev *dev = to_idev(srq->ibsrq.device); + + ip->obj = wq; + ip->size = PAGE_ALIGN(sizeof(struct ipath_rwq) + + size * sz); + spin_lock_irq(&dev->pending_lock); + ip->next = dev->pending_mmaps; + dev->pending_mmaps = ip; + spin_unlock_irq(&dev->pending_lock); + } + } else if (attr_mask & IB_SRQ_LIMIT) { + spin_lock_irq(&srq->rq.lock); + if (attr->srq_limit >= srq->rq.size) + ret = -EINVAL; + else + srq->limit = attr->srq_limit; + spin_unlock_irq(&srq->rq.lock); } - ret = 0; bail: return ret; diff --git a/drivers/infiniband/hw/ipath/ipath_ud.c b/drivers/infiniband/hw/ipath/ipath_ud.c index 3466129af80..82439fcfc2f 100644 --- a/drivers/infiniband/hw/ipath/ipath_ud.c +++ b/drivers/infiniband/hw/ipath/ipath_ud.c @@ -34,7 +34,54 @@ #include #include "ipath_verbs.h" -#include "ipath_common.h" +#include "ipath_kernel.h" + +static int init_sge(struct ipath_qp *qp, struct ipath_rwqe *wqe, + u32 *lengthp, struct ipath_sge_state *ss) +{ + struct ipath_ibdev *dev = to_idev(qp->ibqp.device); + int user = to_ipd(qp->ibqp.pd)->user; + int i, j, ret; + struct ib_wc wc; + + *lengthp = 0; + for (i = j = 0; i < wqe->num_sge; i++) { + if (wqe->sg_list[i].length == 0) + continue; + /* Check LKEY */ + if ((user && wqe->sg_list[i].lkey == 0) || + !ipath_lkey_ok(&dev->lk_table, + j ? &ss->sg_list[j - 1] : &ss->sge, + &wqe->sg_list[i], IB_ACCESS_LOCAL_WRITE)) + goto bad_lkey; + *lengthp += wqe->sg_list[i].length; + j++; + } + ss->num_sge = j; + ret = 1; + goto bail; + +bad_lkey: + wc.wr_id = wqe->wr_id; + wc.status = IB_WC_LOC_PROT_ERR; + wc.opcode = IB_WC_RECV; + wc.vendor_err = 0; + wc.byte_len = 0; + wc.imm_data = 0; + wc.qp_num = qp->ibqp.qp_num; + wc.src_qp = 0; + wc.wc_flags = 0; + wc.pkey_index = 0; + wc.slid = 0; + wc.sl = 0; + wc.dlid_path_bits = 0; + wc.port_num = 0; + /* Signal solicited completion event. */ + ipath_cq_enter(to_icq(qp->ibqp.recv_cq), &wc, 1); + ret = 0; +bail: + return ret; +} /** * ipath_ud_loopback - handle send on loopback QPs @@ -46,6 +93,8 @@ * * This is called from ipath_post_ud_send() to forward a WQE addressed * to the same HCA. + * Note that the receive interrupt handler may be calling ipath_ud_rcv() + * while this is being called. */ static void ipath_ud_loopback(struct ipath_qp *sqp, struct ipath_sge_state *ss, @@ -60,7 +109,11 @@ static void ipath_ud_loopback(struct ipath_qp *sqp, struct ipath_srq *srq; struct ipath_sge_state rsge; struct ipath_sge *sge; + struct ipath_rwq *wq; struct ipath_rwqe *wqe; + void (*handler)(struct ib_event *, void *); + u32 tail; + u32 rlen; qp = ipath_lookup_qpn(&dev->qp_table, wr->wr.ud.remote_qpn); if (!qp) @@ -94,6 +147,13 @@ static void ipath_ud_loopback(struct ipath_qp *sqp, wc->imm_data = 0; } + if (wr->num_sge > 1) { + rsge.sg_list = kmalloc((wr->num_sge - 1) * + sizeof(struct ipath_sge), + GFP_ATOMIC); + } else + rsge.sg_list = NULL; + /* * Get the next work request entry to find where to put the data. * Note that it is safe to drop the lock after changing rq->tail @@ -101,37 +161,52 @@ static void ipath_ud_loopback(struct ipath_qp *sqp, */ if (qp->ibqp.srq) { srq = to_isrq(qp->ibqp.srq); + handler = srq->ibsrq.event_handler; rq = &srq->rq; } else { srq = NULL; + handler = NULL; rq = &qp->r_rq; } + spin_lock_irqsave(&rq->lock, flags); - if (rq->tail == rq->head) { - spin_unlock_irqrestore(&rq->lock, flags); - dev->n_pkt_drops++; - goto done; + wq = rq->wq; + tail = wq->tail; + while (1) { + if (unlikely(tail == wq->head)) { + spin_unlock_irqrestore(&rq->lock, flags); + dev->n_pkt_drops++; + goto bail_sge; + } + wqe = get_rwqe_ptr(rq, tail); + if (++tail >= rq->size) + tail = 0; + if (init_sge(qp, wqe, &rlen, &rsge)) + break; + wq->tail = tail; } /* Silently drop packets which are too big. */ - wqe = get_rwqe_ptr(rq, rq->tail); - if (wc->byte_len > wqe->length) { + if (wc->byte_len > rlen) { spin_unlock_irqrestore(&rq->lock, flags); dev->n_pkt_drops++; - goto done; + goto bail_sge; } + wq->tail = tail; wc->wr_id = wqe->wr_id; - rsge.sge = wqe->sg_list[0]; - rsge.sg_list = wqe->sg_list + 1; - rsge.num_sge = wqe->num_sge; - if (++rq->tail >= rq->size) - rq->tail = 0; - if (srq && srq->ibsrq.event_handler) { + if (handler) { u32 n; - if (rq->head < rq->tail) - n = rq->size + rq->head - rq->tail; + /* + * validate head pointer value and compute + * the number of remaining WQEs. + */ + n = wq->head; + if (n >= rq->size) + n = 0; + if (n < tail) + n += rq->size - tail; else - n = rq->head - rq->tail; + n -= tail; if (n < srq->limit) { struct ib_event ev; @@ -140,12 +215,12 @@ static void ipath_ud_loopback(struct ipath_qp *sqp, ev.device = qp->ibqp.device; ev.element.srq = qp->ibqp.srq; ev.event = IB_EVENT_SRQ_LIMIT_REACHED; - srq->ibsrq.event_handler(&ev, - srq->ibsrq.srq_context); + handler(&ev, srq->ibsrq.srq_context); } else spin_unlock_irqrestore(&rq->lock, flags); } else spin_unlock_irqrestore(&rq->lock, flags); + ah_attr = &to_iah(wr->wr.ud.ah)->attr; if (ah_attr->ah_flags & IB_AH_GRH) { ipath_copy_sge(&rsge, &ah_attr->grh, sizeof(struct ib_grh)); @@ -186,7 +261,7 @@ static void ipath_ud_loopback(struct ipath_qp *sqp, wc->src_qp = sqp->ibqp.qp_num; /* XXX do we know which pkey matched? Only needed for GSI. */ wc->pkey_index = 0; - wc->slid = ipath_layer_get_lid(dev->dd) | + wc->slid = dev->dd->ipath_lid | (ah_attr->src_path_bits & ((1 << (dev->mkeyprot_resv_lmc & 7)) - 1)); wc->sl = ah_attr->sl; @@ -196,6 +271,8 @@ static void ipath_ud_loopback(struct ipath_qp *sqp, ipath_cq_enter(to_icq(qp->ibqp.recv_cq), wc, wr->send_flags & IB_SEND_SOLICITED); +bail_sge: + kfree(rsge.sg_list); done: if (atomic_dec_and_test(&qp->refcount)) wake_up(&qp->wait); @@ -433,13 +510,9 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, int opcode; u32 hdrsize; u32 pad; - unsigned long flags; struct ib_wc wc; u32 qkey; u32 src_qp; - struct ipath_rq *rq; - struct ipath_srq *srq; - struct ipath_rwqe *wqe; u16 dlid; int header_in_data; @@ -547,19 +620,10 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, /* * Get the next work request entry to find where to put the data. - * Note that it is safe to drop the lock after changing rq->tail - * since ipath_post_receive() won't fill the empty slot. */ - if (qp->ibqp.srq) { - srq = to_isrq(qp->ibqp.srq); - rq = &srq->rq; - } else { - srq = NULL; - rq = &qp->r_rq; - } - spin_lock_irqsave(&rq->lock, flags); - if (rq->tail == rq->head) { - spin_unlock_irqrestore(&rq->lock, flags); + if (qp->r_reuse_sge) + qp->r_reuse_sge = 0; + else if (!ipath_get_rwqe(qp, 0)) { /* * Count VL15 packets dropped due to no receive buffer. * Otherwise, count them as buffer overruns since usually, @@ -573,39 +637,11 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, goto bail; } /* Silently drop packets which are too big. */ - wqe = get_rwqe_ptr(rq, rq->tail); - if (wc.byte_len > wqe->length) { - spin_unlock_irqrestore(&rq->lock, flags); + if (wc.byte_len > qp->r_len) { + qp->r_reuse_sge = 1; dev->n_pkt_drops++; goto bail; } - wc.wr_id = wqe->wr_id; - qp->r_sge.sge = wqe->sg_list[0]; - qp->r_sge.sg_list = wqe->sg_list + 1; - qp->r_sge.num_sge = wqe->num_sge; - if (++rq->tail >= rq->size) - rq->tail = 0; - if (srq && srq->ibsrq.event_handler) { - u32 n; - - if (rq->head < rq->tail) - n = rq->size + rq->head - rq->tail; - else - n = rq->head - rq->tail; - if (n < srq->limit) { - struct ib_event ev; - - srq->limit = 0; - spin_unlock_irqrestore(&rq->lock, flags); - ev.device = qp->ibqp.device; - ev.element.srq = qp->ibqp.srq; - ev.event = IB_EVENT_SRQ_LIMIT_REACHED; - srq->ibsrq.event_handler(&ev, - srq->ibsrq.srq_context); - } else - spin_unlock_irqrestore(&rq->lock, flags); - } else - spin_unlock_irqrestore(&rq->lock, flags); if (has_grh) { ipath_copy_sge(&qp->r_sge, &hdr->u.l.grh, sizeof(struct ib_grh)); @@ -614,6 +650,7 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, ipath_skip_sge(&qp->r_sge, sizeof(struct ib_grh)); ipath_copy_sge(&qp->r_sge, data, wc.byte_len - sizeof(struct ib_grh)); + wc.wr_id = qp->r_wr_id; wc.status = IB_WC_SUCCESS; wc.opcode = IB_WC_RECV; wc.vendor_err = 0; diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index d70a9b6b523..a2b4c70192d 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -277,11 +277,12 @@ static int ipath_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, struct ib_recv_wr **bad_wr) { struct ipath_qp *qp = to_iqp(ibqp); + struct ipath_rwq *wq = qp->r_rq.wq; unsigned long flags; int ret; /* Check that state is OK to post receive. */ - if (!(ib_ipath_state_ops[qp->state] & IPATH_POST_RECV_OK)) { + if (!(ib_ipath_state_ops[qp->state] & IPATH_POST_RECV_OK) || !wq) { *bad_wr = wr; ret = -EINVAL; goto bail; @@ -290,59 +291,31 @@ static int ipath_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, for (; wr; wr = wr->next) { struct ipath_rwqe *wqe; u32 next; - int i, j; + int i; - if (wr->num_sge > qp->r_rq.max_sge) { + if ((unsigned) wr->num_sge > qp->r_rq.max_sge) { *bad_wr = wr; ret = -ENOMEM; goto bail; } spin_lock_irqsave(&qp->r_rq.lock, flags); - next = qp->r_rq.head + 1; + next = wq->head + 1; if (next >= qp->r_rq.size) next = 0; - if (next == qp->r_rq.tail) { + if (next == wq->tail) { spin_unlock_irqrestore(&qp->r_rq.lock, flags); *bad_wr = wr; ret = -ENOMEM; goto bail; } - wqe = get_rwqe_ptr(&qp->r_rq, qp->r_rq.head); + wqe = get_rwqe_ptr(&qp->r_rq, wq->head); wqe->wr_id = wr->wr_id; - wqe->sg_list[0].mr = NULL; - wqe->sg_list[0].vaddr = NULL; - wqe->sg_list[0].length = 0; - wqe->sg_list[0].sge_length = 0; - wqe->length = 0; - for (i = 0, j = 0; i < wr->num_sge; i++) { - /* Check LKEY */ - if (to_ipd(qp->ibqp.pd)->user && - wr->sg_list[i].lkey == 0) { - spin_unlock_irqrestore(&qp->r_rq.lock, - flags); - *bad_wr = wr; - ret = -EINVAL; - goto bail; - } - if (wr->sg_list[i].length == 0) - continue; - if (!ipath_lkey_ok( - &to_idev(qp->ibqp.device)->lk_table, - &wqe->sg_list[j], &wr->sg_list[i], - IB_ACCESS_LOCAL_WRITE)) { - spin_unlock_irqrestore(&qp->r_rq.lock, - flags); - *bad_wr = wr; - ret = -EINVAL; - goto bail; - } - wqe->length += wr->sg_list[i].length; - j++; - } - wqe->num_sge = j; - qp->r_rq.head = next; + wqe->num_sge = wr->num_sge; + for (i = 0; i < wr->num_sge; i++) + wqe->sg_list[i] = wr->sg_list[i]; + wq->head = next; spin_unlock_irqrestore(&qp->r_rq.lock, flags); } ret = 0; @@ -1137,6 +1110,7 @@ static void *ipath_register_ib_device(int unit, struct ipath_devdata *dd) dev->attach_mcast = ipath_multicast_attach; dev->detach_mcast = ipath_multicast_detach; dev->process_mad = ipath_process_mad; + dev->mmap = ipath_mmap; snprintf(dev->node_desc, sizeof(dev->node_desc), IPATH_IDSTR " %s kernel_SMA", system_utsname.nodename); diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h index 698396778f0..7d2ba72609f 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.h +++ b/drivers/infiniband/hw/ipath/ipath_verbs.h @@ -38,6 +38,7 @@ #include #include #include +#include #include #include "ipath_layer.h" @@ -50,7 +51,7 @@ * Increment this value if any changes that break userspace ABI * compatibility are made. */ -#define IPATH_UVERBS_ABI_VERSION 1 +#define IPATH_UVERBS_ABI_VERSION 2 /* * Define an ib_cq_notify value that is not valid so we know when CQ @@ -178,58 +179,41 @@ struct ipath_ah { }; /* - * Quick description of our CQ/QP locking scheme: - * - * We have one global lock that protects dev->cq/qp_table. Each - * struct ipath_cq/qp also has its own lock. An individual qp lock - * may be taken inside of an individual cq lock. Both cqs attached to - * a qp may be locked, with the send cq locked first. No other - * nesting should be done. - * - * Each struct ipath_cq/qp also has an atomic_t ref count. The - * pointer from the cq/qp_table to the struct counts as one reference. - * This reference also is good for access through the consumer API, so - * modifying the CQ/QP etc doesn't need to take another reference. - * Access because of a completion being polled does need a reference. - * - * Finally, each struct ipath_cq/qp has a wait_queue_head_t for the - * destroy function to sleep on. - * - * This means that access from the consumer API requires nothing but - * taking the struct's lock. - * - * Access because of a completion event should go as follows: - * - lock cq/qp_table and look up struct - * - increment ref count in struct - * - drop cq/qp_table lock - * - lock struct, do your thing, and unlock struct - * - decrement ref count; if zero, wake up waiters - * - * To destroy a CQ/QP, we can do the following: - * - lock cq/qp_table, remove pointer, unlock cq/qp_table lock - * - decrement ref count - * - wait_event until ref count is zero - * - * It is the consumer's responsibilty to make sure that no QP - * operations (WQE posting or state modification) are pending when the - * QP is destroyed. Also, the consumer must make sure that calls to - * qp_modify are serialized. - * - * Possible optimizations (wait for profile data to see if/where we - * have locks bouncing between CPUs): - * - split cq/qp table lock into n separate (cache-aligned) locks, - * indexed (say) by the page in the table + * This structure is used by ipath_mmap() to validate an offset + * when an mmap() request is made. The vm_area_struct then uses + * this as its vm_private_data. */ +struct ipath_mmap_info { + struct ipath_mmap_info *next; + struct ib_ucontext *context; + void *obj; + struct kref ref; + unsigned size; + unsigned mmap_cnt; +}; +/* + * This structure is used to contain the head pointer, tail pointer, + * and completion queue entries as a single memory allocation so + * it can be mmap'ed into user space. + */ +struct ipath_cq_wc { + u32 head; /* index of next entry to fill */ + u32 tail; /* index of next ib_poll_cq() entry */ + struct ib_wc queue[1]; /* this is actually size ibcq.cqe + 1 */ +}; + +/* + * The completion queue structure. + */ struct ipath_cq { struct ib_cq ibcq; struct tasklet_struct comptask; spinlock_t lock; u8 notify; u8 triggered; - u32 head; /* new records added to the head */ - u32 tail; /* poll_cq() reads from here. */ - struct ib_wc *queue; /* this is actually ibcq.cqe + 1 */ + struct ipath_cq_wc *queue; + struct ipath_mmap_info *ip; }; /* @@ -248,28 +232,40 @@ struct ipath_swqe { /* * Receive work request queue entry. - * The size of the sg_list is determined when the QP is created and stored - * in qp->r_max_sge. + * The size of the sg_list is determined when the QP (or SRQ) is created + * and stored in qp->r_rq.max_sge (or srq->rq.max_sge). */ struct ipath_rwqe { u64 wr_id; - u32 length; /* total length of data in sg_list */ u8 num_sge; - struct ipath_sge sg_list[0]; + struct ib_sge sg_list[0]; }; -struct ipath_rq { - spinlock_t lock; +/* + * This structure is used to contain the head pointer, tail pointer, + * and receive work queue entries as a single memory allocation so + * it can be mmap'ed into user space. + * Note that the wq array elements are variable size so you can't + * just index into the array to get the N'th element; + * use get_rwqe_ptr() instead. + */ +struct ipath_rwq { u32 head; /* new work requests posted to the head */ u32 tail; /* receives pull requests from here. */ + struct ipath_rwqe wq[0]; +}; + +struct ipath_rq { + struct ipath_rwq *wq; + spinlock_t lock; u32 size; /* size of RWQE array */ u8 max_sge; - struct ipath_rwqe *wq; /* RWQE array */ }; struct ipath_srq { struct ib_srq ibsrq; struct ipath_rq rq; + struct ipath_mmap_info *ip; /* send signal when number of RWQEs < limit */ u32 limit; }; @@ -293,6 +289,7 @@ struct ipath_qp { atomic_t refcount; wait_queue_head_t wait; struct tasklet_struct s_task; + struct ipath_mmap_info *ip; struct ipath_sge_state *s_cur_sge; struct ipath_sge_state s_sge; /* current send request data */ /* current RDMA read send data */ @@ -345,7 +342,8 @@ struct ipath_qp { u32 s_ssn; /* SSN of tail entry */ u32 s_lsn; /* limit sequence number (credit) */ struct ipath_swqe *s_wq; /* send work queue */ - struct ipath_rq r_rq; /* receive work queue */ + struct ipath_rq r_rq; /* receive work queue */ + struct ipath_sge r_sg_list[0]; /* verified SGEs */ }; /* @@ -369,15 +367,15 @@ static inline struct ipath_swqe *get_swqe_ptr(struct ipath_qp *qp, /* * Since struct ipath_rwqe is not a fixed size, we can't simply index into - * struct ipath_rq.wq. This function does the array index computation. + * struct ipath_rwq.wq. This function does the array index computation. */ static inline struct ipath_rwqe *get_rwqe_ptr(struct ipath_rq *rq, unsigned n) { return (struct ipath_rwqe *) - ((char *) rq->wq + + ((char *) rq->wq->wq + (sizeof(struct ipath_rwqe) + - rq->max_sge * sizeof(struct ipath_sge)) * n); + rq->max_sge * sizeof(struct ib_sge)) * n); } /* @@ -417,6 +415,7 @@ struct ipath_ibdev { struct ib_device ibdev; struct list_head dev_list; struct ipath_devdata *dd; + struct ipath_mmap_info *pending_mmaps; int ib_unit; /* This is the device number */ u16 sm_lid; /* in host order */ u8 sm_sl; @@ -681,6 +680,10 @@ int ipath_unmap_fmr(struct list_head *fmr_list); int ipath_dealloc_fmr(struct ib_fmr *ibfmr); +void ipath_release_mmap_info(struct kref *ref); + +int ipath_mmap(struct ib_ucontext *context, struct vm_area_struct *vma); + void ipath_no_bufs_available(struct ipath_qp *qp, struct ipath_ibdev *dev); void ipath_insert_rnr_queue(struct ipath_qp *qp); -- cgit v1.2.3-70-g09d2 From eb9dc6f48dc7537ce53163109625bd992150e0cf Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:26 -0700 Subject: IB/ipath: More changes to support InfiniPath on PowerPC 970 systems Ordering of writethrough store buffers needs to be forced, and we need to use ifdef to get writethrough behavior to InfiniPath buffers, because there is no generic way to specify that at this time (similar to code in char/drm/drm_vm.c and block/z2ram.c). Signed-off-by: John Gregor Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/Makefile | 1 + drivers/infiniband/hw/ipath/ipath_driver.c | 6 ++++ drivers/infiniband/hw/ipath/ipath_file_ops.c | 7 ++++ drivers/infiniband/hw/ipath/ipath_wc_ppc64.c | 52 ++++++++++++++++++++++++++++ 4 files changed, 66 insertions(+) create mode 100644 drivers/infiniband/hw/ipath/ipath_wc_ppc64.c (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/Makefile b/drivers/infiniband/hw/ipath/Makefile index 6bb43474d10..075e313941f 100644 --- a/drivers/infiniband/hw/ipath/Makefile +++ b/drivers/infiniband/hw/ipath/Makefile @@ -20,6 +20,7 @@ ipath_core-y := \ ipath_user_pages.o ipath_core-$(CONFIG_X86_64) += ipath_wc_x86_64.o +ipath_core-$(CONFIG_PPC64) += ipath_wc_ppc64.o ib_ipath-y := \ ipath_cq.o \ diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index f98518d912b..6ded914f9eb 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -440,7 +440,13 @@ static int __devinit ipath_init_one(struct pci_dev *pdev, } dd->ipath_pcirev = rev; +#if defined(__powerpc__) + /* There isn't a generic way to specify writethrough mappings */ + dd->ipath_kregbase = __ioremap(addr, len, + (_PAGE_NO_CACHE|_PAGE_WRITETHRU)); +#else dd->ipath_kregbase = ioremap_nocache(addr, len); +#endif if (!dd->ipath_kregbase) { ipath_dbg("Unable to map io addr %llx to kvirt, failing\n", diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index bbaa70e57db..0b6e7679eef 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -985,6 +985,13 @@ static int mmap_piobufs(struct vm_area_struct *vma, * write combining behavior we want on the PIO buffers! */ +#if defined(__powerpc__) + /* There isn't a generic way to specify writethrough mappings */ + pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE; + pgprot_val(vma->vm_page_prot) |= _PAGE_WRITETHRU; + pgprot_val(vma->vm_page_prot) &= ~_PAGE_GUARDED; +#endif + if (vma->vm_flags & VM_READ) { dev_info(&dd->pcidev->dev, "Can't map piobufs as readable (flags=%lx)\n", diff --git a/drivers/infiniband/hw/ipath/ipath_wc_ppc64.c b/drivers/infiniband/hw/ipath/ipath_wc_ppc64.c new file mode 100644 index 00000000000..036fde662aa --- /dev/null +++ b/drivers/infiniband/hw/ipath/ipath_wc_ppc64.c @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2006 QLogic, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* + * This file is conditionally built on PowerPC only. Otherwise weak symbol + * versions of the functions exported from here are used. + */ + +#include "ipath_kernel.h" + +/** + * ipath_unordered_wc - indicate whether write combining is ordered + * + * PowerPC systems (at least those in the 970 processor family) + * write partially filled store buffers in address order, but will write + * completely filled store buffers in "random" order, and therefore must + * have serialization for correctness with current InfiniPath chips. + * + */ +int ipath_unordered_wc(void) +{ + return 1; +} -- cgit v1.2.3-70-g09d2 From c27fef26271d352b5546c33239edeb0dcb4fc0cc Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:27 -0700 Subject: IB/ipath: lock resource limit counters correctly Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_verbs.c | 34 +++++++++++++++++++------ drivers/infiniband/hw/ipath/ipath_verbs.h | 7 +++++ drivers/infiniband/hw/ipath/ipath_verbs_mcast.c | 5 ++++ 3 files changed, 38 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index a2b4c70192d..5b8ee65c6cd 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -776,18 +776,22 @@ static struct ib_pd *ipath_alloc_pd(struct ib_device *ibdev, * we allow allocations of more than we report for this value. */ - if (dev->n_pds_allocated == ib_ipath_max_pds) { + pd = kmalloc(sizeof *pd, GFP_KERNEL); + if (!pd) { ret = ERR_PTR(-ENOMEM); goto bail; } - pd = kmalloc(sizeof *pd, GFP_KERNEL); - if (!pd) { + spin_lock(&dev->n_pds_lock); + if (dev->n_pds_allocated == ib_ipath_max_pds) { + spin_unlock(&dev->n_pds_lock); + kfree(pd); ret = ERR_PTR(-ENOMEM); goto bail; } dev->n_pds_allocated++; + spin_unlock(&dev->n_pds_lock); /* ib_alloc_pd() will initialize pd->ibpd. */ pd->user = udata != NULL; @@ -803,7 +807,9 @@ static int ipath_dealloc_pd(struct ib_pd *ibpd) struct ipath_pd *pd = to_ipd(ibpd); struct ipath_ibdev *dev = to_idev(ibpd->device); + spin_lock(&dev->n_pds_lock); dev->n_pds_allocated--; + spin_unlock(&dev->n_pds_lock); kfree(pd); @@ -824,11 +830,6 @@ static struct ib_ah *ipath_create_ah(struct ib_pd *pd, struct ib_ah *ret; struct ipath_ibdev *dev = to_idev(pd->device); - if (dev->n_ahs_allocated == ib_ipath_max_ahs) { - ret = ERR_PTR(-ENOMEM); - goto bail; - } - /* A multicast address requires a GRH (see ch. 8.4.1). */ if (ah_attr->dlid >= IPATH_MULTICAST_LID_BASE && ah_attr->dlid != IPATH_PERMISSIVE_LID && @@ -854,7 +855,16 @@ static struct ib_ah *ipath_create_ah(struct ib_pd *pd, goto bail; } + spin_lock(&dev->n_ahs_lock); + if (dev->n_ahs_allocated == ib_ipath_max_ahs) { + spin_unlock(&dev->n_ahs_lock); + kfree(ah); + ret = ERR_PTR(-ENOMEM); + goto bail; + } + dev->n_ahs_allocated++; + spin_unlock(&dev->n_ahs_lock); /* ib_create_ah() will initialize ah->ibah. */ ah->attr = *ah_attr; @@ -876,7 +886,9 @@ static int ipath_destroy_ah(struct ib_ah *ibah) struct ipath_ibdev *dev = to_idev(ibah->device); struct ipath_ah *ah = to_iah(ibah); + spin_lock(&dev->n_ahs_lock); dev->n_ahs_allocated--; + spin_unlock(&dev->n_ahs_lock); kfree(ah); @@ -963,6 +975,12 @@ static void *ipath_register_ib_device(int unit, struct ipath_devdata *dd) dev = &idev->ibdev; /* Only need to initialize non-zero fields. */ + spin_lock_init(&idev->n_pds_lock); + spin_lock_init(&idev->n_ahs_lock); + spin_lock_init(&idev->n_cqs_lock); + spin_lock_init(&idev->n_srqs_lock); + spin_lock_init(&idev->n_mcast_grps_lock); + spin_lock_init(&idev->qp_table.lock); spin_lock_init(&idev->lk_table.lock); idev->sm_lid = __constant_be16_to_cpu(IB_LID_PERMISSIVE); diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h index 7d2ba72609f..a9baa910143 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.h +++ b/drivers/infiniband/hw/ipath/ipath_verbs.h @@ -434,11 +434,18 @@ struct ipath_ibdev { __be64 sys_image_guid; /* in network order */ __be64 gid_prefix; /* in network order */ __be64 mkey; + u32 n_pds_allocated; /* number of PDs allocated for device */ + spinlock_t n_pds_lock; u32 n_ahs_allocated; /* number of AHs allocated for device */ + spinlock_t n_ahs_lock; u32 n_cqs_allocated; /* number of CQs allocated for device */ + spinlock_t n_cqs_lock; u32 n_srqs_allocated; /* number of SRQs allocated for device */ + spinlock_t n_srqs_lock; u32 n_mcast_grps_allocated; /* number of mcast groups allocated */ + spinlock_t n_mcast_grps_lock; + u64 ipath_sword; /* total dwords sent (sample result) */ u64 ipath_rword; /* total dwords received (sample result) */ u64 ipath_spkts; /* total packets sent (sample result) */ diff --git a/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c b/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c index ee0e1d96d72..cb35679e4a1 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c @@ -207,12 +207,15 @@ static int ipath_mcast_add(struct ipath_ibdev *dev, goto bail; } + spin_lock(&dev->n_mcast_grps_lock); if (dev->n_mcast_grps_allocated == ib_ipath_max_mcast_grps) { + spin_unlock(&dev->n_mcast_grps_lock); ret = ENOMEM; goto bail; } dev->n_mcast_grps_allocated++; + spin_unlock(&dev->n_mcast_grps_lock); list_add_tail_rcu(&mqp->list, &mcast->qp_list); @@ -343,7 +346,9 @@ int ipath_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) atomic_dec(&mcast->refcount); wait_event(mcast->wait, !atomic_read(&mcast->refcount)); ipath_mcast_free(mcast); + spin_lock(&dev->n_mcast_grps_lock); dev->n_mcast_grps_allocated--; + spin_unlock(&dev->n_mcast_grps_lock); } ret = 0; -- cgit v1.2.3-70-g09d2 From 8e280d94e29af67035637fb957daba7ae0d23583 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:28 -0700 Subject: IB/ipath: fix for crash on module unload, if cfgports < portcnt Allocate enough pointers for all possible ports, to avoid problems in cleanup/unload. Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_init_chip.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c index 414cdd1d80a..c63de8f0fa9 100644 --- a/drivers/infiniband/hw/ipath/ipath_init_chip.c +++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c @@ -240,7 +240,11 @@ static int init_chip_first(struct ipath_devdata *dd, "only supports %u\n", ipath_cfgports, dd->ipath_portcnt); } - dd->ipath_pd = kzalloc(sizeof(*dd->ipath_pd) * dd->ipath_cfgports, + /* + * Allocate full portcnt array, rather than just cfgports, because + * cleanup iterates across all possible ports. + */ + dd->ipath_pd = kzalloc(sizeof(*dd->ipath_pd) * dd->ipath_portcnt, GFP_KERNEL); if (!dd->ipath_pd) { -- cgit v1.2.3-70-g09d2 From ba11203a11835737df980ef3dd3bd8325b9cc94e Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:29 -0700 Subject: IB/ipath: fix handling of kpiobufs Change comment: no longer imply that user can set ipath_kpiobufs to zero. Actually set ipath_kpiobufs from parameter. Previously only altered per-device ipath_lastport_piobuf, which was over-written in chip init. Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_init_chip.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c index c63de8f0fa9..75c37213670 100644 --- a/drivers/infiniband/hw/ipath/ipath_init_chip.c +++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c @@ -691,7 +691,7 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) dd->ipath_pioavregs = ALIGN(val, sizeof(u64) * BITS_PER_BYTE / 2) / (sizeof(u64) * BITS_PER_BYTE / 2); if (ipath_kpiobufs == 0) { - /* not set by user, or set explictly to default */ + /* not set by user (this is default) */ if ((dd->ipath_piobcnt2k + dd->ipath_piobcnt4k) > 128) kpiobufs = 32; else @@ -950,6 +950,7 @@ static int ipath_set_kpiobufs(const char *str, struct kernel_param *kp) dd->ipath_piobcnt2k + dd->ipath_piobcnt4k - val; } + ipath_kpiobufs = val; ret = 0; bail: spin_unlock_irqrestore(&ipath_devs_lock, flags); -- cgit v1.2.3-70-g09d2 From 367fe711c5dc85dbc3265cf01e34d4d6fbd55f06 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:30 -0700 Subject: IB/ipath: drop requirement that PIO buffers be mmaped write-only Some userlands try to mmap these pages read-write, so accommodate them. Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_file_ops.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index 0b6e7679eef..e999a46bef9 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -992,15 +992,10 @@ static int mmap_piobufs(struct vm_area_struct *vma, pgprot_val(vma->vm_page_prot) &= ~_PAGE_GUARDED; #endif - if (vma->vm_flags & VM_READ) { - dev_info(&dd->pcidev->dev, - "Can't map piobufs as readable (flags=%lx)\n", - vma->vm_flags); - ret = -EPERM; - goto bail; - } - - /* don't allow them to later change to readable with mprotect */ + /* + * don't allow them to later change to readable with mprotect (for when + * not initially mapped readable, as is normally the case) + */ vma->vm_flags &= ~VM_MAYREAD; vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; -- cgit v1.2.3-70-g09d2 From b1c1b6a30eac88665a35a207cc5e6233090b9d65 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:31 -0700 Subject: IB/ipath: merge ipath_core and ib_ipath drivers There is little point in keeping the two drivers separate, so we are merging them. Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/Makefile | 2 +- drivers/infiniband/hw/ipath/Kconfig | 21 +-- drivers/infiniband/hw/ipath/Makefile | 27 ++-- drivers/infiniband/hw/ipath/ipath_driver.c | 13 +- drivers/infiniband/hw/ipath/ipath_intr.c | 3 +- drivers/infiniband/hw/ipath/ipath_kernel.h | 11 +- drivers/infiniband/hw/ipath/ipath_layer.c | 214 ++--------------------------- drivers/infiniband/hw/ipath/ipath_layer.h | 8 -- drivers/infiniband/hw/ipath/ipath_verbs.c | 45 ++---- drivers/infiniband/hw/ipath/ipath_verbs.h | 10 ++ 10 files changed, 62 insertions(+), 292 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/Makefile b/drivers/infiniband/Makefile index 893bee0a50b..08cff32d900 100644 --- a/drivers/infiniband/Makefile +++ b/drivers/infiniband/Makefile @@ -1,6 +1,6 @@ obj-$(CONFIG_INFINIBAND) += core/ obj-$(CONFIG_INFINIBAND_MTHCA) += hw/mthca/ -obj-$(CONFIG_IPATH_CORE) += hw/ipath/ +obj-$(CONFIG_INFINIBAND_IPATH) += hw/ipath/ obj-$(CONFIG_INFINIBAND_EHCA) += hw/ehca/ obj-$(CONFIG_INFINIBAND_IPOIB) += ulp/ipoib/ obj-$(CONFIG_INFINIBAND_SRP) += ulp/srp/ diff --git a/drivers/infiniband/hw/ipath/Kconfig b/drivers/infiniband/hw/ipath/Kconfig index 1db9489f1e8..574a678e7fd 100644 --- a/drivers/infiniband/hw/ipath/Kconfig +++ b/drivers/infiniband/hw/ipath/Kconfig @@ -1,16 +1,9 @@ -config IPATH_CORE - tristate "QLogic InfiniPath Driver" - depends on 64BIT && PCI_MSI && NET - ---help--- - This is a low-level driver for QLogic InfiniPath host channel - adapters (HCAs) based on the HT-400 and PE-800 chips. - config INFINIBAND_IPATH - tristate "QLogic InfiniPath Verbs Driver" - depends on IPATH_CORE && INFINIBAND + tristate "QLogic InfiniPath Driver" + depends on PCI_MSI && 64BIT && INFINIBAND ---help--- - This is a driver that provides InfiniBand verbs support for - QLogic InfiniPath host channel adapters (HCAs). This - allows these devices to be used with both kernel upper level - protocols such as IP-over-InfiniBand as well as with userspace - applications (in conjunction with InfiniBand userspace access). + This is a driver for QLogic InfiniPath host channel adapters, + including InfiniBand verbs support. This driver allows these + devices to be used with both kernel upper level protocols such + as IP-over-InfiniBand as well as with userspace applications + (in conjunction with InfiniBand userspace access). diff --git a/drivers/infiniband/hw/ipath/Makefile b/drivers/infiniband/hw/ipath/Makefile index 075e313941f..690dc713e63 100644 --- a/drivers/infiniband/hw/ipath/Makefile +++ b/drivers/infiniband/hw/ipath/Makefile @@ -1,10 +1,10 @@ EXTRA_CFLAGS += -DIPATH_IDSTR='"QLogic kernel.org driver"' \ -DIPATH_KERN_TYPE=0 -obj-$(CONFIG_IPATH_CORE) += ipath_core.o obj-$(CONFIG_INFINIBAND_IPATH) += ib_ipath.o -ipath_core-y := \ +ib_ipath-y := \ + ipath_cq.o \ ipath_diag.o \ ipath_driver.o \ ipath_eeprom.o \ @@ -13,26 +13,23 @@ ipath_core-y := \ ipath_ht400.o \ ipath_init_chip.o \ ipath_intr.o \ - ipath_layer.o \ - ipath_pe800.o \ - ipath_stats.o \ - ipath_sysfs.o \ - ipath_user_pages.o - -ipath_core-$(CONFIG_X86_64) += ipath_wc_x86_64.o -ipath_core-$(CONFIG_PPC64) += ipath_wc_ppc64.o - -ib_ipath-y := \ - ipath_cq.o \ ipath_keys.o \ + ipath_layer.o \ ipath_mad.o \ ipath_mmap.o \ ipath_mr.o \ + ipath_pe800.o \ ipath_qp.o \ ipath_rc.o \ ipath_ruc.o \ ipath_srq.o \ + ipath_stats.o \ + ipath_sysfs.o \ ipath_uc.o \ ipath_ud.o \ - ipath_verbs.o \ - ipath_verbs_mcast.o + ipath_user_pages.o \ + ipath_verbs_mcast.o \ + ipath_verbs.o + +ib_ipath-$(CONFIG_X86_64) += ipath_wc_x86_64.o +ib_ipath-$(CONFIG_PPC64) += ipath_wc_ppc64.o diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index 6ded914f9eb..9af7406d6a6 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -40,6 +40,7 @@ #include "ipath_kernel.h" #include "ipath_layer.h" +#include "ipath_verbs.h" #include "ipath_common.h" static void ipath_update_pio_bufs(struct ipath_devdata *); @@ -51,8 +52,6 @@ const char *ipath_get_unit_name(int unit) return iname; } -EXPORT_SYMBOL_GPL(ipath_get_unit_name); - #define DRIVER_LOAD_MSG "QLogic " IPATH_DRV_NAME " loaded: " #define PFX IPATH_DRV_NAME ": " @@ -510,6 +509,7 @@ static int __devinit ipath_init_one(struct pci_dev *pdev, ipath_user_add(dd); ipath_diag_add(dd); ipath_layer_add(dd); + ipath_register_ib_device(dd); goto bail; @@ -538,6 +538,7 @@ static void __devexit ipath_remove_one(struct pci_dev *pdev) return; dd = pci_get_drvdata(pdev); + ipath_unregister_ib_device(dd->verbs_dev); ipath_layer_remove(dd); ipath_diag_remove(dd); ipath_user_remove(dd); @@ -978,12 +979,8 @@ reloop: if (unlikely(eflags)) ipath_rcv_hdrerr(dd, eflags, l, etail, rc); else if (etype == RCVHQ_RCV_TYPE_NON_KD) { - int ret = __ipath_verbs_rcv(dd, rc + 1, - ebuf, tlen); - if (ret == -ENODEV) - ipath_cdbg(VERBOSE, - "received IB packet, " - "not SMA (QP=%x)\n", qp); + ipath_ib_rcv(dd->verbs_dev, rc + 1, ebuf, + tlen); if (dd->ipath_lli_counter) dd->ipath_lli_counter--; diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c index 280e732660a..ed54f8f2945 100644 --- a/drivers/infiniband/hw/ipath/ipath_intr.c +++ b/drivers/infiniband/hw/ipath/ipath_intr.c @@ -35,6 +35,7 @@ #include "ipath_kernel.h" #include "ipath_layer.h" +#include "ipath_verbs.h" #include "ipath_common.h" /* These are all rcv-related errors which we want to count for stats */ @@ -712,7 +713,7 @@ static void handle_layer_pioavail(struct ipath_devdata *dd) if (ret > 0) goto set; - ret = __ipath_verbs_piobufavail(dd); + ret = ipath_ib_piobufavail(dd->verbs_dev); if (ret > 0) goto set; diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index e9f374fb641..f1931105adb 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -132,12 +132,6 @@ struct _ipath_layer { void *l_arg; }; -/* Verbs layer interface */ -struct _verbs_layer { - void *l_arg; - struct timer_list l_timer; -}; - struct ipath_devdata { struct list_head ipath_list; @@ -198,7 +192,8 @@ struct ipath_devdata { void (*ipath_f_setextled)(struct ipath_devdata *, u64, u64); /* fill out chip-specific fields */ int (*ipath_f_get_base_info)(struct ipath_portdata *, void *); - struct _verbs_layer verbs_layer; + struct ipath_ibdev *verbs_dev; + struct timer_list verbs_timer; /* total dwords sent (summed from counter) */ u64 ipath_sword; /* total dwords rcvd (summed from counter) */ @@ -529,8 +524,6 @@ extern int ipath_layer_intr(struct ipath_devdata *, u32); extern int __ipath_layer_rcv(struct ipath_devdata *, void *, struct sk_buff *); extern int __ipath_layer_rcv_lid(struct ipath_devdata *, void *); -extern int __ipath_verbs_piobufavail(struct ipath_devdata *); -extern int __ipath_verbs_rcv(struct ipath_devdata *, void *, void *, u32); void ipath_layer_add(struct ipath_devdata *); void ipath_layer_remove(struct ipath_devdata *); diff --git a/drivers/infiniband/hw/ipath/ipath_layer.c b/drivers/infiniband/hw/ipath/ipath_layer.c index b28c6f81c73..acc32200cc0 100644 --- a/drivers/infiniband/hw/ipath/ipath_layer.c +++ b/drivers/infiniband/hw/ipath/ipath_layer.c @@ -42,26 +42,20 @@ #include "ipath_kernel.h" #include "ipath_layer.h" +#include "ipath_verbs.h" #include "ipath_common.h" /* Acquire before ipath_devs_lock. */ static DEFINE_MUTEX(ipath_layer_mutex); -static int ipath_verbs_registered; - u16 ipath_layer_rcv_opcode; static int (*layer_intr)(void *, u32); static int (*layer_rcv)(void *, void *, struct sk_buff *); static int (*layer_rcv_lid)(void *, void *); -static int (*verbs_piobufavail)(void *); -static void (*verbs_rcv)(void *, void *, void *, u32); static void *(*layer_add_one)(int, struct ipath_devdata *); static void (*layer_remove_one)(void *); -static void *(*verbs_add_one)(int, struct ipath_devdata *); -static void (*verbs_remove_one)(void *); -static void (*verbs_timer_cb)(void *); int __ipath_layer_intr(struct ipath_devdata *dd, u32 arg) { @@ -107,29 +101,6 @@ int __ipath_layer_rcv_lid(struct ipath_devdata *dd, void *hdr) return ret; } -int __ipath_verbs_piobufavail(struct ipath_devdata *dd) -{ - int ret = -ENODEV; - - if (dd->verbs_layer.l_arg && verbs_piobufavail) - ret = verbs_piobufavail(dd->verbs_layer.l_arg); - - return ret; -} - -int __ipath_verbs_rcv(struct ipath_devdata *dd, void *rc, void *ebuf, - u32 tlen) -{ - int ret = -ENODEV; - - if (dd->verbs_layer.l_arg && verbs_rcv) { - verbs_rcv(dd->verbs_layer.l_arg, rc, ebuf, tlen); - ret = 0; - } - - return ret; -} - int ipath_layer_set_linkstate(struct ipath_devdata *dd, u8 newstate) { u32 lstate; @@ -212,8 +183,6 @@ bail: return ret; } -EXPORT_SYMBOL_GPL(ipath_layer_set_linkstate); - /** * ipath_layer_set_mtu - set the MTU * @dd: the infinipath device @@ -298,8 +267,6 @@ bail: return ret; } -EXPORT_SYMBOL_GPL(ipath_layer_set_mtu); - int ipath_set_lid(struct ipath_devdata *dd, u32 arg, u8 lmc) { dd->ipath_lid = arg; @@ -315,8 +282,6 @@ int ipath_set_lid(struct ipath_devdata *dd, u32 arg, u8 lmc) return 0; } -EXPORT_SYMBOL_GPL(ipath_set_lid); - int ipath_layer_set_guid(struct ipath_devdata *dd, __be64 guid) { /* XXX - need to inform anyone who cares this just happened. */ @@ -324,85 +289,56 @@ int ipath_layer_set_guid(struct ipath_devdata *dd, __be64 guid) return 0; } -EXPORT_SYMBOL_GPL(ipath_layer_set_guid); - __be64 ipath_layer_get_guid(struct ipath_devdata *dd) { return dd->ipath_guid; } -EXPORT_SYMBOL_GPL(ipath_layer_get_guid); - -u32 ipath_layer_get_nguid(struct ipath_devdata *dd) -{ - return dd->ipath_nguid; -} - -EXPORT_SYMBOL_GPL(ipath_layer_get_nguid); - u32 ipath_layer_get_majrev(struct ipath_devdata *dd) { return dd->ipath_majrev; } -EXPORT_SYMBOL_GPL(ipath_layer_get_majrev); - u32 ipath_layer_get_minrev(struct ipath_devdata *dd) { return dd->ipath_minrev; } -EXPORT_SYMBOL_GPL(ipath_layer_get_minrev); - u32 ipath_layer_get_pcirev(struct ipath_devdata *dd) { return dd->ipath_pcirev; } -EXPORT_SYMBOL_GPL(ipath_layer_get_pcirev); - u32 ipath_layer_get_flags(struct ipath_devdata *dd) { return dd->ipath_flags; } -EXPORT_SYMBOL_GPL(ipath_layer_get_flags); - struct device *ipath_layer_get_device(struct ipath_devdata *dd) { return &dd->pcidev->dev; } -EXPORT_SYMBOL_GPL(ipath_layer_get_device); - u16 ipath_layer_get_deviceid(struct ipath_devdata *dd) { return dd->ipath_deviceid; } -EXPORT_SYMBOL_GPL(ipath_layer_get_deviceid); - u32 ipath_layer_get_vendorid(struct ipath_devdata *dd) { return dd->ipath_vendorid; } -EXPORT_SYMBOL_GPL(ipath_layer_get_vendorid); - u64 ipath_layer_get_lastibcstat(struct ipath_devdata *dd) { return dd->ipath_lastibcstat; } -EXPORT_SYMBOL_GPL(ipath_layer_get_lastibcstat); - u32 ipath_layer_get_ibmtu(struct ipath_devdata *dd) { return dd->ipath_ibmtu; } -EXPORT_SYMBOL_GPL(ipath_layer_get_ibmtu); - void ipath_layer_add(struct ipath_devdata *dd) { mutex_lock(&ipath_layer_mutex); @@ -411,10 +347,6 @@ void ipath_layer_add(struct ipath_devdata *dd) dd->ipath_layer.l_arg = layer_add_one(dd->ipath_unit, dd); - if (verbs_add_one) - dd->verbs_layer.l_arg = - verbs_add_one(dd->ipath_unit, dd); - mutex_unlock(&ipath_layer_mutex); } @@ -427,11 +359,6 @@ void ipath_layer_remove(struct ipath_devdata *dd) dd->ipath_layer.l_arg = NULL; } - if (dd->verbs_layer.l_arg && verbs_remove_one) { - verbs_remove_one(dd->verbs_layer.l_arg); - dd->verbs_layer.l_arg = NULL; - } - mutex_unlock(&ipath_layer_mutex); } @@ -521,95 +448,10 @@ static void __ipath_verbs_timer(unsigned long arg) ipath_kreceive(dd); /* Handle verbs layer timeouts. */ - if (dd->verbs_layer.l_arg && verbs_timer_cb) - verbs_timer_cb(dd->verbs_layer.l_arg); - - mod_timer(&dd->verbs_layer.l_timer, jiffies + 1); -} - -/** - * ipath_verbs_register - verbs layer registration - * @l_piobufavail: callback for when PIO buffers become available - * @l_rcv: callback for receiving a packet - * @l_timer_cb: timer callback - * @ipath_devdata: device data structure is put here - */ -int ipath_verbs_register(void *(*l_add)(int, struct ipath_devdata *), - void (*l_remove)(void *arg), - int (*l_piobufavail) (void *arg), - void (*l_rcv) (void *arg, void *rhdr, - void *data, u32 tlen), - void (*l_timer_cb) (void *arg)) -{ - struct ipath_devdata *dd, *tmp; - unsigned long flags; - - mutex_lock(&ipath_layer_mutex); - - verbs_add_one = l_add; - verbs_remove_one = l_remove; - verbs_piobufavail = l_piobufavail; - verbs_rcv = l_rcv; - verbs_timer_cb = l_timer_cb; - - spin_lock_irqsave(&ipath_devs_lock, flags); - - list_for_each_entry_safe(dd, tmp, &ipath_dev_list, ipath_list) { - if (!(dd->ipath_flags & IPATH_INITTED)) - continue; - - if (dd->verbs_layer.l_arg) - continue; - - spin_unlock_irqrestore(&ipath_devs_lock, flags); - dd->verbs_layer.l_arg = l_add(dd->ipath_unit, dd); - spin_lock_irqsave(&ipath_devs_lock, flags); - } - - spin_unlock_irqrestore(&ipath_devs_lock, flags); - mutex_unlock(&ipath_layer_mutex); - - ipath_verbs_registered = 1; - - return 0; -} - -EXPORT_SYMBOL_GPL(ipath_verbs_register); - -void ipath_verbs_unregister(void) -{ - struct ipath_devdata *dd, *tmp; - unsigned long flags; - - mutex_lock(&ipath_layer_mutex); - spin_lock_irqsave(&ipath_devs_lock, flags); - - list_for_each_entry_safe(dd, tmp, &ipath_dev_list, ipath_list) { - *dd->ipath_statusp &= ~IPATH_STATUS_OIB_SMA; - - if (dd->verbs_layer.l_arg && verbs_remove_one) { - spin_unlock_irqrestore(&ipath_devs_lock, flags); - verbs_remove_one(dd->verbs_layer.l_arg); - spin_lock_irqsave(&ipath_devs_lock, flags); - dd->verbs_layer.l_arg = NULL; - } - } - - spin_unlock_irqrestore(&ipath_devs_lock, flags); - - verbs_add_one = NULL; - verbs_remove_one = NULL; - verbs_piobufavail = NULL; - verbs_rcv = NULL; - verbs_timer_cb = NULL; - - ipath_verbs_registered = 0; - - mutex_unlock(&ipath_layer_mutex); + ipath_ib_timer(dd->verbs_dev); + mod_timer(&dd->verbs_timer, jiffies + 1); } -EXPORT_SYMBOL_GPL(ipath_verbs_unregister); - int ipath_layer_open(struct ipath_devdata *dd, u32 * pktmax) { int ret; @@ -703,8 +545,6 @@ u32 ipath_layer_get_cr_errpkey(struct ipath_devdata *dd) return ipath_read_creg32(dd, dd->ipath_cregs->cr_errpkey); } -EXPORT_SYMBOL_GPL(ipath_layer_get_cr_errpkey); - static void update_sge(struct ipath_sge_state *ss, u32 length) { struct ipath_sge *sge = &ss->sge; @@ -981,8 +821,6 @@ bail: return ret; } -EXPORT_SYMBOL_GPL(ipath_verbs_send); - int ipath_layer_snapshot_counters(struct ipath_devdata *dd, u64 *swords, u64 *rwords, u64 *spkts, u64 *rpkts, u64 *xmit_wait) @@ -1007,8 +845,6 @@ bail: return ret; } -EXPORT_SYMBOL_GPL(ipath_layer_snapshot_counters); - /** * ipath_layer_get_counters - get various chip counters * @dd: the infinipath device @@ -1069,8 +905,6 @@ bail: return ret; } -EXPORT_SYMBOL_GPL(ipath_layer_get_counters); - int ipath_layer_want_buffer(struct ipath_devdata *dd) { set_bit(IPATH_S_PIOINTBUFAVAIL, &dd->ipath_sendctrl); @@ -1080,8 +914,6 @@ int ipath_layer_want_buffer(struct ipath_devdata *dd) return 0; } -EXPORT_SYMBOL_GPL(ipath_layer_want_buffer); - int ipath_layer_send_hdr(struct ipath_devdata *dd, struct ether_header *hdr) { int ret = 0; @@ -1174,30 +1006,26 @@ int ipath_layer_enable_timer(struct ipath_devdata *dd) (u64) (1 << 2)); } - init_timer(&dd->verbs_layer.l_timer); - dd->verbs_layer.l_timer.function = __ipath_verbs_timer; - dd->verbs_layer.l_timer.data = (unsigned long)dd; - dd->verbs_layer.l_timer.expires = jiffies + 1; - add_timer(&dd->verbs_layer.l_timer); + init_timer(&dd->verbs_timer); + dd->verbs_timer.function = __ipath_verbs_timer; + dd->verbs_timer.data = (unsigned long)dd; + dd->verbs_timer.expires = jiffies + 1; + add_timer(&dd->verbs_timer); return 0; } -EXPORT_SYMBOL_GPL(ipath_layer_enable_timer); - int ipath_layer_disable_timer(struct ipath_devdata *dd) { /* Disable GPIO bit 2 interrupt */ if (dd->ipath_flags & IPATH_GPIO_INTR) ipath_write_kreg(dd, dd->ipath_kregs->kr_gpio_mask, 0); - del_timer_sync(&dd->verbs_layer.l_timer); + del_timer_sync(&dd->verbs_timer); return 0; } -EXPORT_SYMBOL_GPL(ipath_layer_disable_timer); - /** * ipath_layer_set_verbs_flags - set the verbs layer flags * @dd: the infinipath device @@ -1225,8 +1053,6 @@ int ipath_layer_set_verbs_flags(struct ipath_devdata *dd, unsigned flags) return 0; } -EXPORT_SYMBOL_GPL(ipath_layer_set_verbs_flags); - /** * ipath_layer_get_npkeys - return the size of the PKEY table for port 0 * @dd: the infinipath device @@ -1236,8 +1062,6 @@ unsigned ipath_layer_get_npkeys(struct ipath_devdata *dd) return ARRAY_SIZE(dd->ipath_pd[0]->port_pkeys); } -EXPORT_SYMBOL_GPL(ipath_layer_get_npkeys); - /** * ipath_layer_get_pkey - return the indexed PKEY from the port 0 PKEY table * @dd: the infinipath device @@ -1255,8 +1079,6 @@ unsigned ipath_layer_get_pkey(struct ipath_devdata *dd, unsigned index) return ret; } -EXPORT_SYMBOL_GPL(ipath_layer_get_pkey); - /** * ipath_layer_get_pkeys - return the PKEY table for port 0 * @dd: the infinipath device @@ -1271,8 +1093,6 @@ int ipath_layer_get_pkeys(struct ipath_devdata *dd, u16 * pkeys) return 0; } -EXPORT_SYMBOL_GPL(ipath_layer_get_pkeys); - /** * rm_pkey - decrecment the reference count for the given PKEY * @dd: the infinipath device @@ -1419,8 +1239,6 @@ int ipath_layer_set_pkeys(struct ipath_devdata *dd, u16 * pkeys) return 0; } -EXPORT_SYMBOL_GPL(ipath_layer_set_pkeys); - /** * ipath_layer_get_linkdowndefaultstate - get the default linkdown state * @dd: the infinipath device @@ -1432,8 +1250,6 @@ int ipath_layer_get_linkdowndefaultstate(struct ipath_devdata *dd) return !!(dd->ipath_ibcctrl & INFINIPATH_IBCC_LINKDOWNDEFAULTSTATE); } -EXPORT_SYMBOL_GPL(ipath_layer_get_linkdowndefaultstate); - /** * ipath_layer_set_linkdowndefaultstate - set the default linkdown state * @dd: the infinipath device @@ -1453,8 +1269,6 @@ int ipath_layer_set_linkdowndefaultstate(struct ipath_devdata *dd, return 0; } -EXPORT_SYMBOL_GPL(ipath_layer_set_linkdowndefaultstate); - int ipath_layer_get_phyerrthreshold(struct ipath_devdata *dd) { return (dd->ipath_ibcctrl >> @@ -1462,8 +1276,6 @@ int ipath_layer_get_phyerrthreshold(struct ipath_devdata *dd) INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK; } -EXPORT_SYMBOL_GPL(ipath_layer_get_phyerrthreshold); - /** * ipath_layer_set_phyerrthreshold - set the physical error threshold * @dd: the infinipath device @@ -1489,8 +1301,6 @@ int ipath_layer_set_phyerrthreshold(struct ipath_devdata *dd, unsigned n) return 0; } -EXPORT_SYMBOL_GPL(ipath_layer_set_phyerrthreshold); - int ipath_layer_get_overrunthreshold(struct ipath_devdata *dd) { return (dd->ipath_ibcctrl >> @@ -1498,8 +1308,6 @@ int ipath_layer_get_overrunthreshold(struct ipath_devdata *dd) INFINIPATH_IBCC_OVERRUNTHRESHOLD_MASK; } -EXPORT_SYMBOL_GPL(ipath_layer_get_overrunthreshold); - /** * ipath_layer_set_overrunthreshold - set the overrun threshold * @dd: the infinipath device @@ -1525,17 +1333,13 @@ int ipath_layer_set_overrunthreshold(struct ipath_devdata *dd, unsigned n) return 0; } -EXPORT_SYMBOL_GPL(ipath_layer_set_overrunthreshold); - int ipath_layer_get_boardname(struct ipath_devdata *dd, char *name, size_t namelen) { return dd->ipath_f_get_boardname(dd, name, namelen); } -EXPORT_SYMBOL_GPL(ipath_layer_get_boardname); u32 ipath_layer_get_rcvhdrentsize(struct ipath_devdata *dd) { return dd->ipath_rcvhdrentsize; } -EXPORT_SYMBOL_GPL(ipath_layer_get_rcvhdrentsize); diff --git a/drivers/infiniband/hw/ipath/ipath_layer.h b/drivers/infiniband/hw/ipath/ipath_layer.h index 71485096fca..57c990a5715 100644 --- a/drivers/infiniband/hw/ipath/ipath_layer.h +++ b/drivers/infiniband/hw/ipath/ipath_layer.h @@ -114,14 +114,7 @@ int ipath_layer_register(void *(*l_add)(int, struct ipath_devdata *), struct sk_buff *), u16 rcv_opcode, int (*l_rcv_lid)(void *, void *)); -int ipath_verbs_register(void *(*l_add)(int, struct ipath_devdata *), - void (*l_remove)(void *arg), - int (*l_piobufavail)(void *arg), - void (*l_rcv)(void *arg, void *rhdr, - void *data, u32 tlen), - void (*l_timer_cb)(void *arg)); void ipath_layer_unregister(void); -void ipath_verbs_unregister(void); int ipath_layer_open(struct ipath_devdata *, u32 * pktmax); u16 ipath_layer_get_lid(struct ipath_devdata *dd); int ipath_layer_get_mac(struct ipath_devdata *dd, u8 *); @@ -145,7 +138,6 @@ int ipath_layer_get_counters(struct ipath_devdata *dd, int ipath_layer_want_buffer(struct ipath_devdata *dd); int ipath_layer_set_guid(struct ipath_devdata *, __be64 guid); __be64 ipath_layer_get_guid(struct ipath_devdata *); -u32 ipath_layer_get_nguid(struct ipath_devdata *); u32 ipath_layer_get_majrev(struct ipath_devdata *); u32 ipath_layer_get_minrev(struct ipath_devdata *); u32 ipath_layer_get_pcirev(struct ipath_devdata *); diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 5b8ee65c6cd..15edec9227e 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -368,7 +368,7 @@ static void ipath_qp_rcv(struct ipath_ibdev *dev, } /** - * ipath_ib_rcv - process and incoming packet + * ipath_ib_rcv - process an incoming packet * @arg: the device pointer * @rhdr: the header of the packet * @data: the packet data @@ -377,9 +377,9 @@ static void ipath_qp_rcv(struct ipath_ibdev *dev, * This is called from ipath_kreceive() to process an incoming packet at * interrupt level. Tlen is the length of the header + data + CRC in bytes. */ -static void ipath_ib_rcv(void *arg, void *rhdr, void *data, u32 tlen) +void ipath_ib_rcv(struct ipath_ibdev *dev, void *rhdr, void *data, + u32 tlen) { - struct ipath_ibdev *dev = (struct ipath_ibdev *) arg; struct ipath_ib_header *hdr = rhdr; struct ipath_other_headers *ohdr; struct ipath_qp *qp; @@ -468,9 +468,8 @@ bail:; * This is called from ipath_do_rcv_timer() at interrupt level to check for * QPs which need retransmits and to collect performance numbers. */ -static void ipath_ib_timer(void *arg) +void ipath_ib_timer(struct ipath_ibdev *dev) { - struct ipath_ibdev *dev = (struct ipath_ibdev *) arg; struct ipath_qp *resend = NULL; struct list_head *last; struct ipath_qp *qp; @@ -564,9 +563,8 @@ static void ipath_ib_timer(void *arg) * QPs waiting for buffers (for now, just do a tasklet_hi_schedule and * return zero). */ -static int ipath_ib_piobufavail(void *arg) +int ipath_ib_piobufavail(struct ipath_ibdev *dev) { - struct ipath_ibdev *dev = (struct ipath_ibdev *) arg; struct ipath_qp *qp; unsigned long flags; @@ -957,11 +955,10 @@ static int ipath_verbs_register_sysfs(struct ib_device *dev); /** * ipath_register_ib_device - register our device with the infiniband core - * @unit: the device number to register * @dd: the device data structure * Return the allocated ipath_ibdev pointer or NULL on error. */ -static void *ipath_register_ib_device(int unit, struct ipath_devdata *dd) +int ipath_register_ib_device(struct ipath_devdata *dd) { struct ipath_layer_counters cntrs; struct ipath_ibdev *idev; @@ -969,8 +966,10 @@ static void *ipath_register_ib_device(int unit, struct ipath_devdata *dd) int ret; idev = (struct ipath_ibdev *)ib_alloc_device(sizeof *idev); - if (idev == NULL) + if (idev == NULL) { + ret = -ENOMEM; goto bail; + } dev = &idev->ibdev; @@ -1047,7 +1046,7 @@ static void *ipath_register_ib_device(int unit, struct ipath_devdata *dd) if (!sys_image_guid) sys_image_guid = ipath_layer_get_guid(dd); idev->sys_image_guid = sys_image_guid; - idev->ib_unit = unit; + idev->ib_unit = dd->ipath_unit; idev->dd = dd; strlcpy(dev->name, "ipath%d", IB_DEVICE_NAME_MAX); @@ -1153,16 +1152,16 @@ err_lk: err_qp: ib_dealloc_device(dev); _VERBS_ERROR("ib_ipath%d cannot register verbs (%d)!\n", - unit, -ret); + dd->ipath_unit, -ret); idev = NULL; bail: - return idev; + dd->verbs_dev = idev; + return ret; } -static void ipath_unregister_ib_device(void *arg) +void ipath_unregister_ib_device(struct ipath_ibdev *dev) { - struct ipath_ibdev *dev = (struct ipath_ibdev *) arg; struct ib_device *ibdev = &dev->ibdev; ipath_layer_disable_timer(dev->dd); @@ -1193,19 +1192,6 @@ static void ipath_unregister_ib_device(void *arg) ib_dealloc_device(ibdev); } -static int __init ipath_verbs_init(void) -{ - return ipath_verbs_register(ipath_register_ib_device, - ipath_unregister_ib_device, - ipath_ib_piobufavail, ipath_ib_rcv, - ipath_ib_timer); -} - -static void __exit ipath_verbs_cleanup(void) -{ - ipath_verbs_unregister(); -} - static ssize_t show_rev(struct class_device *cdev, char *buf) { struct ipath_ibdev *dev = @@ -1297,6 +1283,3 @@ static int ipath_verbs_register_sysfs(struct ib_device *dev) bail: return ret; } - -module_init(ipath_verbs_init); -module_exit(ipath_verbs_cleanup); diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h index a9baa910143..d6faa4ba606 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.h +++ b/drivers/infiniband/hw/ipath/ipath_verbs.h @@ -711,6 +711,16 @@ int ipath_make_rc_req(struct ipath_qp *qp, struct ipath_other_headers *ohdr, int ipath_make_uc_req(struct ipath_qp *qp, struct ipath_other_headers *ohdr, u32 pmtu, u32 *bth0p, u32 *bth2p); +int ipath_register_ib_device(struct ipath_devdata *); + +void ipath_unregister_ib_device(struct ipath_ibdev *); + +void ipath_ib_rcv(struct ipath_ibdev *, void *, void *, u32); + +int ipath_ib_piobufavail(struct ipath_ibdev *); + +void ipath_ib_timer(struct ipath_ibdev *); + extern const enum ib_wc_opcode ib_ipath_wc_opcode[]; extern const u8 ipath_cvt_physportstate[]; -- cgit v1.2.3-70-g09d2 From 34b2aafea38efdf02cd8107a6e1057e2a297c447 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:32 -0700 Subject: IB/ipath: simplify layering code A lot of ipath layer code was only called in one place. Now that the ipath_core and ib_ipath drivers are merged, it's more sensible to simply inline the simple stuff that the layer code was doing. Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_diag.c | 1 - drivers/infiniband/hw/ipath/ipath_driver.c | 275 +++++--- drivers/infiniband/hw/ipath/ipath_file_ops.c | 1 - drivers/infiniband/hw/ipath/ipath_intr.c | 7 - drivers/infiniband/hw/ipath/ipath_kernel.h | 15 +- drivers/infiniband/hw/ipath/ipath_layer.c | 978 +-------------------------- drivers/infiniband/hw/ipath/ipath_layer.h | 104 --- drivers/infiniband/hw/ipath/ipath_mad.c | 339 ++++++++-- drivers/infiniband/hw/ipath/ipath_mr.c | 12 + drivers/infiniband/hw/ipath/ipath_qp.c | 34 +- drivers/infiniband/hw/ipath/ipath_rc.c | 9 +- drivers/infiniband/hw/ipath/ipath_ruc.c | 22 +- drivers/infiniband/hw/ipath/ipath_sysfs.c | 6 +- drivers/infiniband/hw/ipath/ipath_uc.c | 5 +- drivers/infiniband/hw/ipath/ipath_ud.c | 13 +- drivers/infiniband/hw/ipath/ipath_verbs.c | 525 ++++++++++++-- drivers/infiniband/hw/ipath/ipath_verbs.h | 109 ++- 17 files changed, 1126 insertions(+), 1329 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_diag.c b/drivers/infiniband/hw/ipath/ipath_diag.c index 147dd89e21c..5d77a74aa57 100644 --- a/drivers/infiniband/hw/ipath/ipath_diag.c +++ b/drivers/infiniband/hw/ipath/ipath_diag.c @@ -45,7 +45,6 @@ #include #include "ipath_kernel.h" -#include "ipath_layer.h" #include "ipath_common.h" int ipath_diag_inuse; diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index 9af7406d6a6..958cc9b33c8 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -39,7 +39,6 @@ #include #include "ipath_kernel.h" -#include "ipath_layer.h" #include "ipath_verbs.h" #include "ipath_common.h" @@ -508,7 +507,6 @@ static int __devinit ipath_init_one(struct pci_dev *pdev, ipathfs_add_device(dd); ipath_user_add(dd); ipath_diag_add(dd); - ipath_layer_add(dd); ipath_register_ib_device(dd); goto bail; @@ -539,7 +537,6 @@ static void __devexit ipath_remove_one(struct pci_dev *pdev) dd = pci_get_drvdata(pdev); ipath_unregister_ib_device(dd->verbs_dev); - ipath_layer_remove(dd); ipath_diag_remove(dd); ipath_user_remove(dd); ipathfs_remove_device(dd); @@ -614,11 +611,12 @@ void ipath_disarm_piobufs(struct ipath_devdata *dd, unsigned first, * * wait up to msecs milliseconds for IB link state change to occur for * now, take the easy polling route. Currently used only by - * ipath_layer_set_linkstate. Returns 0 if state reached, otherwise + * ipath_set_linkstate. Returns 0 if state reached, otherwise * -ETIMEDOUT state can have multiple states set, for any of several * transitions. */ -int ipath_wait_linkstate(struct ipath_devdata *dd, u32 state, int msecs) +static int ipath_wait_linkstate(struct ipath_devdata *dd, u32 state, + int msecs) { dd->ipath_sma_state_wanted = state; wait_event_interruptible_timeout(ipath_sma_state_wait, @@ -814,58 +812,6 @@ bail: return skb; } -/** - * ipath_rcv_layer - receive a packet for the layered (ethernet) driver - * @dd: the infinipath device - * @etail: the sk_buff number - * @tlen: the total packet length - * @hdr: the ethernet header - * - * Separate routine for better overall optimization - */ -static void ipath_rcv_layer(struct ipath_devdata *dd, u32 etail, - u32 tlen, struct ether_header *hdr) -{ - u32 elen; - u8 pad, *bthbytes; - struct sk_buff *skb, *nskb; - - if (dd->ipath_port0_skbs && - hdr->sub_opcode == IPATH_ITH4X_OPCODE_ENCAP) { - /* - * Allocate a new sk_buff to replace the one we give - * to the network stack. - */ - nskb = ipath_alloc_skb(dd, GFP_ATOMIC); - if (!nskb) { - /* count OK packets that we drop */ - ipath_stats.sps_krdrops++; - return; - } - - bthbytes = (u8 *) hdr->bth; - pad = (bthbytes[1] >> 4) & 3; - /* +CRC32 */ - elen = tlen - (sizeof(*hdr) + pad + sizeof(u32)); - - skb = dd->ipath_port0_skbs[etail]; - dd->ipath_port0_skbs[etail] = nskb; - skb_put(skb, elen); - - dd->ipath_f_put_tid(dd, etail + (u64 __iomem *) - ((char __iomem *) dd->ipath_kregbase - + dd->ipath_rcvegrbase), 0, - virt_to_phys(nskb->data)); - - __ipath_layer_rcv(dd, hdr, skb); - - /* another ether packet received */ - ipath_stats.sps_ether_rpkts++; - } - else if (hdr->sub_opcode == IPATH_ITH4X_OPCODE_LID_ARP) - __ipath_layer_rcv_lid(dd, hdr); -} - static void ipath_rcv_hdrerr(struct ipath_devdata *dd, u32 eflags, u32 l, @@ -979,22 +925,17 @@ reloop: if (unlikely(eflags)) ipath_rcv_hdrerr(dd, eflags, l, etail, rc); else if (etype == RCVHQ_RCV_TYPE_NON_KD) { - ipath_ib_rcv(dd->verbs_dev, rc + 1, ebuf, - tlen); - if (dd->ipath_lli_counter) - dd->ipath_lli_counter--; - - } else if (etype == RCVHQ_RCV_TYPE_EAGER) { - if (qp == IPATH_KD_QP && - bthbytes[0] == ipath_layer_rcv_opcode && - ebuf) - ipath_rcv_layer(dd, etail, tlen, - (struct ether_header *)hdr); - else - ipath_cdbg(PKT, "typ %x, opcode %x (eager, " - "qp=%x), len %x; ignored\n", - etype, bthbytes[0], qp, tlen); + ipath_ib_rcv(dd->verbs_dev, rc + 1, ebuf, tlen); + if (dd->ipath_lli_counter) + dd->ipath_lli_counter--; + ipath_cdbg(PKT, "typ %x, opcode %x (eager, " + "qp=%x), len %x; ignored\n", + etype, bthbytes[0], qp, tlen); } + else if (etype == RCVHQ_RCV_TYPE_EAGER) + ipath_cdbg(PKT, "typ %x, opcode %x (eager, " + "qp=%x), len %x; ignored\n", + etype, bthbytes[0], qp, tlen); else if (etype == RCVHQ_RCV_TYPE_EXPECTED) ipath_dbg("Bug: Expected TID, opcode %x; ignored\n", be32_to_cpu(hdr->bth[0]) & 0xff); @@ -1320,13 +1261,6 @@ rescan: goto bail; } - if (updated) - /* - * ran out of bufs, now some (at least this one we just - * got) are now available, so tell the layered driver. - */ - __ipath_layer_intr(dd, IPATH_LAYER_INT_SEND_CONTINUE); - /* * set next starting place. Since it's just an optimization, * it doesn't matter who wins on this, so no locking @@ -1503,7 +1437,7 @@ int ipath_waitfor_mdio_cmdready(struct ipath_devdata *dd) return ret; } -void ipath_set_ib_lstate(struct ipath_devdata *dd, int which) +static void ipath_set_ib_lstate(struct ipath_devdata *dd, int which) { static const char *what[4] = { [0] = "DOWN", @@ -1537,6 +1471,180 @@ void ipath_set_ib_lstate(struct ipath_devdata *dd, int which) dd->ipath_ibcctrl | which); } +int ipath_set_linkstate(struct ipath_devdata *dd, u8 newstate) +{ + u32 lstate; + int ret; + + switch (newstate) { + case IPATH_IB_LINKDOWN: + ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKINITCMD_POLL << + INFINIPATH_IBCC_LINKINITCMD_SHIFT); + /* don't wait */ + ret = 0; + goto bail; + + case IPATH_IB_LINKDOWN_SLEEP: + ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKINITCMD_SLEEP << + INFINIPATH_IBCC_LINKINITCMD_SHIFT); + /* don't wait */ + ret = 0; + goto bail; + + case IPATH_IB_LINKDOWN_DISABLE: + ipath_set_ib_lstate(dd, + INFINIPATH_IBCC_LINKINITCMD_DISABLE << + INFINIPATH_IBCC_LINKINITCMD_SHIFT); + /* don't wait */ + ret = 0; + goto bail; + + case IPATH_IB_LINKINIT: + if (dd->ipath_flags & IPATH_LINKINIT) { + ret = 0; + goto bail; + } + ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKCMD_INIT << + INFINIPATH_IBCC_LINKCMD_SHIFT); + lstate = IPATH_LINKINIT; + break; + + case IPATH_IB_LINKARM: + if (dd->ipath_flags & IPATH_LINKARMED) { + ret = 0; + goto bail; + } + if (!(dd->ipath_flags & + (IPATH_LINKINIT | IPATH_LINKACTIVE))) { + ret = -EINVAL; + goto bail; + } + ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKCMD_ARMED << + INFINIPATH_IBCC_LINKCMD_SHIFT); + /* + * Since the port can transition to ACTIVE by receiving + * a non VL 15 packet, wait for either state. + */ + lstate = IPATH_LINKARMED | IPATH_LINKACTIVE; + break; + + case IPATH_IB_LINKACTIVE: + if (dd->ipath_flags & IPATH_LINKACTIVE) { + ret = 0; + goto bail; + } + if (!(dd->ipath_flags & IPATH_LINKARMED)) { + ret = -EINVAL; + goto bail; + } + ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKCMD_ACTIVE << + INFINIPATH_IBCC_LINKCMD_SHIFT); + lstate = IPATH_LINKACTIVE; + break; + + default: + ipath_dbg("Invalid linkstate 0x%x requested\n", newstate); + ret = -EINVAL; + goto bail; + } + ret = ipath_wait_linkstate(dd, lstate, 2000); + +bail: + return ret; +} + +/** + * ipath_set_mtu - set the MTU + * @dd: the infinipath device + * @arg: the new MTU + * + * we can handle "any" incoming size, the issue here is whether we + * need to restrict our outgoing size. For now, we don't do any + * sanity checking on this, and we don't deal with what happens to + * programs that are already running when the size changes. + * NOTE: changing the MTU will usually cause the IBC to go back to + * link initialize (IPATH_IBSTATE_INIT) state... + */ +int ipath_set_mtu(struct ipath_devdata *dd, u16 arg) +{ + u32 piosize; + int changed = 0; + int ret; + + /* + * mtu is IB data payload max. It's the largest power of 2 less + * than piosize (or even larger, since it only really controls the + * largest we can receive; we can send the max of the mtu and + * piosize). We check that it's one of the valid IB sizes. + */ + if (arg != 256 && arg != 512 && arg != 1024 && arg != 2048 && + arg != 4096) { + ipath_dbg("Trying to set invalid mtu %u, failing\n", arg); + ret = -EINVAL; + goto bail; + } + if (dd->ipath_ibmtu == arg) { + ret = 0; /* same as current */ + goto bail; + } + + piosize = dd->ipath_ibmaxlen; + dd->ipath_ibmtu = arg; + + if (arg >= (piosize - IPATH_PIO_MAXIBHDR)) { + /* Only if it's not the initial value (or reset to it) */ + if (piosize != dd->ipath_init_ibmaxlen) { + dd->ipath_ibmaxlen = piosize; + changed = 1; + } + } else if ((arg + IPATH_PIO_MAXIBHDR) != dd->ipath_ibmaxlen) { + piosize = arg + IPATH_PIO_MAXIBHDR; + ipath_cdbg(VERBOSE, "ibmaxlen was 0x%x, setting to 0x%x " + "(mtu 0x%x)\n", dd->ipath_ibmaxlen, piosize, + arg); + dd->ipath_ibmaxlen = piosize; + changed = 1; + } + + if (changed) { + /* + * set the IBC maxpktlength to the size of our pio + * buffers in words + */ + u64 ibc = dd->ipath_ibcctrl; + ibc &= ~(INFINIPATH_IBCC_MAXPKTLEN_MASK << + INFINIPATH_IBCC_MAXPKTLEN_SHIFT); + + piosize = piosize - 2 * sizeof(u32); /* ignore pbc */ + dd->ipath_ibmaxlen = piosize; + piosize /= sizeof(u32); /* in words */ + /* + * for ICRC, which we only send in diag test pkt mode, and + * we don't need to worry about that for mtu + */ + piosize += 1; + + ibc |= piosize << INFINIPATH_IBCC_MAXPKTLEN_SHIFT; + dd->ipath_ibcctrl = ibc; + ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, + dd->ipath_ibcctrl); + dd->ipath_f_tidtemplate(dd); + } + + ret = 0; + +bail: + return ret; +} + +int ipath_set_lid(struct ipath_devdata *dd, u32 arg, u8 lmc) +{ + dd->ipath_lid = arg; + dd->ipath_lmc = lmc; + + return 0; +} + /** * ipath_read_kreg64_port - read a device's per-port 64-bit kernel register * @dd: the infinipath device @@ -1640,13 +1748,6 @@ void ipath_shutdown_device(struct ipath_devdata *dd) ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKINITCMD_DISABLE << INFINIPATH_IBCC_LINKINITCMD_SHIFT); - /* - * we are shutting down, so tell the layered driver. We don't do - * this on just a link state change, much like ethernet, a cable - * unplug, etc. doesn't change driver state - */ - ipath_layer_intr(dd, IPATH_LAYER_INT_IF_DOWN); - /* disable IBC */ dd->ipath_control &= ~INFINIPATH_C_LINKENABLE; ipath_write_kreg(dd, dd->ipath_kregs->kr_control, diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index e999a46bef9..f865ce89b73 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -39,7 +39,6 @@ #include #include "ipath_kernel.h" -#include "ipath_layer.h" #include "ipath_common.h" static int ipath_open(struct inode *, struct file *); diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c index ed54f8f2945..250e2a9f01b 100644 --- a/drivers/infiniband/hw/ipath/ipath_intr.c +++ b/drivers/infiniband/hw/ipath/ipath_intr.c @@ -34,7 +34,6 @@ #include #include "ipath_kernel.h" -#include "ipath_layer.h" #include "ipath_verbs.h" #include "ipath_common.h" @@ -290,8 +289,6 @@ static void handle_e_ibstatuschanged(struct ipath_devdata *dd, *dd->ipath_statusp |= IPATH_STATUS_IB_READY | IPATH_STATUS_IB_CONF; dd->ipath_f_setextled(dd, lstate, ltstate); - - __ipath_layer_intr(dd, IPATH_LAYER_INT_IF_UP); } else if ((val & IPATH_IBSTATE_MASK) == IPATH_IBSTATE_INIT) { /* * set INIT and DOWN. Down is checked by most of the other @@ -709,10 +706,6 @@ static void handle_layer_pioavail(struct ipath_devdata *dd) { int ret; - ret = __ipath_layer_intr(dd, IPATH_LAYER_INT_SEND_CONTINUE); - if (ret > 0) - goto set; - ret = ipath_ib_piobufavail(dd->verbs_dev); if (ret > 0) goto set; diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index f1931105adb..999249b7f27 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -518,16 +518,6 @@ extern struct list_head ipath_dev_list; extern spinlock_t ipath_devs_lock; extern struct ipath_devdata *ipath_lookup(int unit); -extern u16 ipath_layer_rcv_opcode; -extern int __ipath_layer_intr(struct ipath_devdata *, u32); -extern int ipath_layer_intr(struct ipath_devdata *, u32); -extern int __ipath_layer_rcv(struct ipath_devdata *, void *, - struct sk_buff *); -extern int __ipath_layer_rcv_lid(struct ipath_devdata *, void *); - -void ipath_layer_add(struct ipath_devdata *); -void ipath_layer_remove(struct ipath_devdata *); - int ipath_init_chip(struct ipath_devdata *, int); int ipath_enable_wc(struct ipath_devdata *dd); void ipath_disable_wc(struct ipath_devdata *dd); @@ -575,12 +565,13 @@ void ipath_free_pddata(struct ipath_devdata *, struct ipath_portdata *); int ipath_parse_ushort(const char *str, unsigned short *valp); -int ipath_wait_linkstate(struct ipath_devdata *, u32, int); -void ipath_set_ib_lstate(struct ipath_devdata *, int); void ipath_kreceive(struct ipath_devdata *); int ipath_setrcvhdrsize(struct ipath_devdata *, unsigned); int ipath_reset_device(int); void ipath_get_faststats(unsigned long); +int ipath_set_linkstate(struct ipath_devdata *, u8); +int ipath_set_mtu(struct ipath_devdata *, u16); +int ipath_set_lid(struct ipath_devdata *, u32, u8); /* for use in system calls, where we want to know device type, etc. */ #define port_fp(fp) ((struct ipath_portdata *) (fp)->private_data) diff --git a/drivers/infiniband/hw/ipath/ipath_layer.c b/drivers/infiniband/hw/ipath/ipath_layer.c index acc32200cc0..10f578e2aed 100644 --- a/drivers/infiniband/hw/ipath/ipath_layer.c +++ b/drivers/infiniband/hw/ipath/ipath_layer.c @@ -101,242 +101,14 @@ int __ipath_layer_rcv_lid(struct ipath_devdata *dd, void *hdr) return ret; } -int ipath_layer_set_linkstate(struct ipath_devdata *dd, u8 newstate) +void ipath_layer_lid_changed(struct ipath_devdata *dd) { - u32 lstate; - int ret; - - switch (newstate) { - case IPATH_IB_LINKDOWN: - ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKINITCMD_POLL << - INFINIPATH_IBCC_LINKINITCMD_SHIFT); - /* don't wait */ - ret = 0; - goto bail; - - case IPATH_IB_LINKDOWN_SLEEP: - ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKINITCMD_SLEEP << - INFINIPATH_IBCC_LINKINITCMD_SHIFT); - /* don't wait */ - ret = 0; - goto bail; - - case IPATH_IB_LINKDOWN_DISABLE: - ipath_set_ib_lstate(dd, - INFINIPATH_IBCC_LINKINITCMD_DISABLE << - INFINIPATH_IBCC_LINKINITCMD_SHIFT); - /* don't wait */ - ret = 0; - goto bail; - - case IPATH_IB_LINKINIT: - if (dd->ipath_flags & IPATH_LINKINIT) { - ret = 0; - goto bail; - } - ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKCMD_INIT << - INFINIPATH_IBCC_LINKCMD_SHIFT); - lstate = IPATH_LINKINIT; - break; - - case IPATH_IB_LINKARM: - if (dd->ipath_flags & IPATH_LINKARMED) { - ret = 0; - goto bail; - } - if (!(dd->ipath_flags & - (IPATH_LINKINIT | IPATH_LINKACTIVE))) { - ret = -EINVAL; - goto bail; - } - ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKCMD_ARMED << - INFINIPATH_IBCC_LINKCMD_SHIFT); - /* - * Since the port can transition to ACTIVE by receiving - * a non VL 15 packet, wait for either state. - */ - lstate = IPATH_LINKARMED | IPATH_LINKACTIVE; - break; - - case IPATH_IB_LINKACTIVE: - if (dd->ipath_flags & IPATH_LINKACTIVE) { - ret = 0; - goto bail; - } - if (!(dd->ipath_flags & IPATH_LINKARMED)) { - ret = -EINVAL; - goto bail; - } - ipath_set_ib_lstate(dd, INFINIPATH_IBCC_LINKCMD_ACTIVE << - INFINIPATH_IBCC_LINKCMD_SHIFT); - lstate = IPATH_LINKACTIVE; - break; - - default: - ipath_dbg("Invalid linkstate 0x%x requested\n", newstate); - ret = -EINVAL; - goto bail; - } - ret = ipath_wait_linkstate(dd, lstate, 2000); - -bail: - return ret; -} - -/** - * ipath_layer_set_mtu - set the MTU - * @dd: the infinipath device - * @arg: the new MTU - * - * we can handle "any" incoming size, the issue here is whether we - * need to restrict our outgoing size. For now, we don't do any - * sanity checking on this, and we don't deal with what happens to - * programs that are already running when the size changes. - * NOTE: changing the MTU will usually cause the IBC to go back to - * link initialize (IPATH_IBSTATE_INIT) state... - */ -int ipath_layer_set_mtu(struct ipath_devdata *dd, u16 arg) -{ - u32 piosize; - int changed = 0; - int ret; - - /* - * mtu is IB data payload max. It's the largest power of 2 less - * than piosize (or even larger, since it only really controls the - * largest we can receive; we can send the max of the mtu and - * piosize). We check that it's one of the valid IB sizes. - */ - if (arg != 256 && arg != 512 && arg != 1024 && arg != 2048 && - arg != 4096) { - ipath_dbg("Trying to set invalid mtu %u, failing\n", arg); - ret = -EINVAL; - goto bail; - } - if (dd->ipath_ibmtu == arg) { - ret = 0; /* same as current */ - goto bail; - } - - piosize = dd->ipath_ibmaxlen; - dd->ipath_ibmtu = arg; - - if (arg >= (piosize - IPATH_PIO_MAXIBHDR)) { - /* Only if it's not the initial value (or reset to it) */ - if (piosize != dd->ipath_init_ibmaxlen) { - dd->ipath_ibmaxlen = piosize; - changed = 1; - } - } else if ((arg + IPATH_PIO_MAXIBHDR) != dd->ipath_ibmaxlen) { - piosize = arg + IPATH_PIO_MAXIBHDR; - ipath_cdbg(VERBOSE, "ibmaxlen was 0x%x, setting to 0x%x " - "(mtu 0x%x)\n", dd->ipath_ibmaxlen, piosize, - arg); - dd->ipath_ibmaxlen = piosize; - changed = 1; - } - - if (changed) { - /* - * set the IBC maxpktlength to the size of our pio - * buffers in words - */ - u64 ibc = dd->ipath_ibcctrl; - ibc &= ~(INFINIPATH_IBCC_MAXPKTLEN_MASK << - INFINIPATH_IBCC_MAXPKTLEN_SHIFT); - - piosize = piosize - 2 * sizeof(u32); /* ignore pbc */ - dd->ipath_ibmaxlen = piosize; - piosize /= sizeof(u32); /* in words */ - /* - * for ICRC, which we only send in diag test pkt mode, and - * we don't need to worry about that for mtu - */ - piosize += 1; - - ibc |= piosize << INFINIPATH_IBCC_MAXPKTLEN_SHIFT; - dd->ipath_ibcctrl = ibc; - ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, - dd->ipath_ibcctrl); - dd->ipath_f_tidtemplate(dd); - } - - ret = 0; - -bail: - return ret; -} - -int ipath_set_lid(struct ipath_devdata *dd, u32 arg, u8 lmc) -{ - dd->ipath_lid = arg; - dd->ipath_lmc = lmc; - mutex_lock(&ipath_layer_mutex); if (dd->ipath_layer.l_arg && layer_intr) layer_intr(dd->ipath_layer.l_arg, IPATH_LAYER_INT_LID); mutex_unlock(&ipath_layer_mutex); - - return 0; -} - -int ipath_layer_set_guid(struct ipath_devdata *dd, __be64 guid) -{ - /* XXX - need to inform anyone who cares this just happened. */ - dd->ipath_guid = guid; - return 0; -} - -__be64 ipath_layer_get_guid(struct ipath_devdata *dd) -{ - return dd->ipath_guid; -} - -u32 ipath_layer_get_majrev(struct ipath_devdata *dd) -{ - return dd->ipath_majrev; -} - -u32 ipath_layer_get_minrev(struct ipath_devdata *dd) -{ - return dd->ipath_minrev; -} - -u32 ipath_layer_get_pcirev(struct ipath_devdata *dd) -{ - return dd->ipath_pcirev; -} - -u32 ipath_layer_get_flags(struct ipath_devdata *dd) -{ - return dd->ipath_flags; -} - -struct device *ipath_layer_get_device(struct ipath_devdata *dd) -{ - return &dd->pcidev->dev; -} - -u16 ipath_layer_get_deviceid(struct ipath_devdata *dd) -{ - return dd->ipath_deviceid; -} - -u32 ipath_layer_get_vendorid(struct ipath_devdata *dd) -{ - return dd->ipath_vendorid; -} - -u64 ipath_layer_get_lastibcstat(struct ipath_devdata *dd) -{ - return dd->ipath_lastibcstat; -} - -u32 ipath_layer_get_ibmtu(struct ipath_devdata *dd) -{ - return dd->ipath_ibmtu; } void ipath_layer_add(struct ipath_devdata *dd) @@ -436,22 +208,6 @@ void ipath_layer_unregister(void) EXPORT_SYMBOL_GPL(ipath_layer_unregister); -static void __ipath_verbs_timer(unsigned long arg) -{ - struct ipath_devdata *dd = (struct ipath_devdata *) arg; - - /* - * If port 0 receive packet interrupts are not available, or - * can be missed, poll the receive queue - */ - if (dd->ipath_flags & IPATH_POLL_RX_INTR) - ipath_kreceive(dd); - - /* Handle verbs layer timeouts. */ - ipath_ib_timer(dd->verbs_dev); - mod_timer(&dd->verbs_timer, jiffies + 1); -} - int ipath_layer_open(struct ipath_devdata *dd, u32 * pktmax) { int ret; @@ -540,380 +296,6 @@ u16 ipath_layer_get_bcast(struct ipath_devdata *dd) EXPORT_SYMBOL_GPL(ipath_layer_get_bcast); -u32 ipath_layer_get_cr_errpkey(struct ipath_devdata *dd) -{ - return ipath_read_creg32(dd, dd->ipath_cregs->cr_errpkey); -} - -static void update_sge(struct ipath_sge_state *ss, u32 length) -{ - struct ipath_sge *sge = &ss->sge; - - sge->vaddr += length; - sge->length -= length; - sge->sge_length -= length; - if (sge->sge_length == 0) { - if (--ss->num_sge) - *sge = *ss->sg_list++; - } else if (sge->length == 0 && sge->mr != NULL) { - if (++sge->n >= IPATH_SEGSZ) { - if (++sge->m >= sge->mr->mapsz) - return; - sge->n = 0; - } - sge->vaddr = sge->mr->map[sge->m]->segs[sge->n].vaddr; - sge->length = sge->mr->map[sge->m]->segs[sge->n].length; - } -} - -#ifdef __LITTLE_ENDIAN -static inline u32 get_upper_bits(u32 data, u32 shift) -{ - return data >> shift; -} - -static inline u32 set_upper_bits(u32 data, u32 shift) -{ - return data << shift; -} - -static inline u32 clear_upper_bytes(u32 data, u32 n, u32 off) -{ - data <<= ((sizeof(u32) - n) * BITS_PER_BYTE); - data >>= ((sizeof(u32) - n - off) * BITS_PER_BYTE); - return data; -} -#else -static inline u32 get_upper_bits(u32 data, u32 shift) -{ - return data << shift; -} - -static inline u32 set_upper_bits(u32 data, u32 shift) -{ - return data >> shift; -} - -static inline u32 clear_upper_bytes(u32 data, u32 n, u32 off) -{ - data >>= ((sizeof(u32) - n) * BITS_PER_BYTE); - data <<= ((sizeof(u32) - n - off) * BITS_PER_BYTE); - return data; -} -#endif - -static void copy_io(u32 __iomem *piobuf, struct ipath_sge_state *ss, - u32 length) -{ - u32 extra = 0; - u32 data = 0; - u32 last; - - while (1) { - u32 len = ss->sge.length; - u32 off; - - BUG_ON(len == 0); - if (len > length) - len = length; - if (len > ss->sge.sge_length) - len = ss->sge.sge_length; - /* If the source address is not aligned, try to align it. */ - off = (unsigned long)ss->sge.vaddr & (sizeof(u32) - 1); - if (off) { - u32 *addr = (u32 *)((unsigned long)ss->sge.vaddr & - ~(sizeof(u32) - 1)); - u32 v = get_upper_bits(*addr, off * BITS_PER_BYTE); - u32 y; - - y = sizeof(u32) - off; - if (len > y) - len = y; - if (len + extra >= sizeof(u32)) { - data |= set_upper_bits(v, extra * - BITS_PER_BYTE); - len = sizeof(u32) - extra; - if (len == length) { - last = data; - break; - } - __raw_writel(data, piobuf); - piobuf++; - extra = 0; - data = 0; - } else { - /* Clear unused upper bytes */ - data |= clear_upper_bytes(v, len, extra); - if (len == length) { - last = data; - break; - } - extra += len; - } - } else if (extra) { - /* Source address is aligned. */ - u32 *addr = (u32 *) ss->sge.vaddr; - int shift = extra * BITS_PER_BYTE; - int ushift = 32 - shift; - u32 l = len; - - while (l >= sizeof(u32)) { - u32 v = *addr; - - data |= set_upper_bits(v, shift); - __raw_writel(data, piobuf); - data = get_upper_bits(v, ushift); - piobuf++; - addr++; - l -= sizeof(u32); - } - /* - * We still have 'extra' number of bytes leftover. - */ - if (l) { - u32 v = *addr; - - if (l + extra >= sizeof(u32)) { - data |= set_upper_bits(v, shift); - len -= l + extra - sizeof(u32); - if (len == length) { - last = data; - break; - } - __raw_writel(data, piobuf); - piobuf++; - extra = 0; - data = 0; - } else { - /* Clear unused upper bytes */ - data |= clear_upper_bytes(v, l, - extra); - if (len == length) { - last = data; - break; - } - extra += l; - } - } else if (len == length) { - last = data; - break; - } - } else if (len == length) { - u32 w; - - /* - * Need to round up for the last dword in the - * packet. - */ - w = (len + 3) >> 2; - __iowrite32_copy(piobuf, ss->sge.vaddr, w - 1); - piobuf += w - 1; - last = ((u32 *) ss->sge.vaddr)[w - 1]; - break; - } else { - u32 w = len >> 2; - - __iowrite32_copy(piobuf, ss->sge.vaddr, w); - piobuf += w; - - extra = len & (sizeof(u32) - 1); - if (extra) { - u32 v = ((u32 *) ss->sge.vaddr)[w]; - - /* Clear unused upper bytes */ - data = clear_upper_bytes(v, extra, 0); - } - } - update_sge(ss, len); - length -= len; - } - /* Update address before sending packet. */ - update_sge(ss, length); - /* must flush early everything before trigger word */ - ipath_flush_wc(); - __raw_writel(last, piobuf); - /* be sure trigger word is written */ - ipath_flush_wc(); -} - -/** - * ipath_verbs_send - send a packet from the verbs layer - * @dd: the infinipath device - * @hdrwords: the number of words in the header - * @hdr: the packet header - * @len: the length of the packet in bytes - * @ss: the SGE to send - * - * This is like ipath_sma_send_pkt() in that we need to be able to send - * packets after the chip is initialized (MADs) but also like - * ipath_layer_send_hdr() since its used by the verbs layer. - */ -int ipath_verbs_send(struct ipath_devdata *dd, u32 hdrwords, - u32 *hdr, u32 len, struct ipath_sge_state *ss) -{ - u32 __iomem *piobuf; - u32 plen; - int ret; - - /* +1 is for the qword padding of pbc */ - plen = hdrwords + ((len + 3) >> 2) + 1; - if (unlikely((plen << 2) > dd->ipath_ibmaxlen)) { - ipath_dbg("packet len 0x%x too long, failing\n", plen); - ret = -EINVAL; - goto bail; - } - - /* Get a PIO buffer to use. */ - piobuf = ipath_getpiobuf(dd, NULL); - if (unlikely(piobuf == NULL)) { - ret = -EBUSY; - goto bail; - } - - /* - * Write len to control qword, no flags. - * We have to flush after the PBC for correctness on some cpus - * or WC buffer can be written out of order. - */ - writeq(plen, piobuf); - ipath_flush_wc(); - piobuf += 2; - if (len == 0) { - /* - * If there is just the header portion, must flush before - * writing last word of header for correctness, and after - * the last header word (trigger word). - */ - __iowrite32_copy(piobuf, hdr, hdrwords - 1); - ipath_flush_wc(); - __raw_writel(hdr[hdrwords - 1], piobuf + hdrwords - 1); - ipath_flush_wc(); - ret = 0; - goto bail; - } - - __iowrite32_copy(piobuf, hdr, hdrwords); - piobuf += hdrwords; - - /* The common case is aligned and contained in one segment. */ - if (likely(ss->num_sge == 1 && len <= ss->sge.length && - !((unsigned long)ss->sge.vaddr & (sizeof(u32) - 1)))) { - u32 w; - u32 *addr = (u32 *) ss->sge.vaddr; - - /* Update address before sending packet. */ - update_sge(ss, len); - /* Need to round up for the last dword in the packet. */ - w = (len + 3) >> 2; - __iowrite32_copy(piobuf, addr, w - 1); - /* must flush early everything before trigger word */ - ipath_flush_wc(); - __raw_writel(addr[w - 1], piobuf + w - 1); - /* be sure trigger word is written */ - ipath_flush_wc(); - ret = 0; - goto bail; - } - copy_io(piobuf, ss, len); - ret = 0; - -bail: - return ret; -} - -int ipath_layer_snapshot_counters(struct ipath_devdata *dd, u64 *swords, - u64 *rwords, u64 *spkts, u64 *rpkts, - u64 *xmit_wait) -{ - int ret; - - if (!(dd->ipath_flags & IPATH_INITTED)) { - /* no hardware, freeze, etc. */ - ipath_dbg("unit %u not usable\n", dd->ipath_unit); - ret = -EINVAL; - goto bail; - } - *swords = ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordsendcnt); - *rwords = ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordrcvcnt); - *spkts = ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktsendcnt); - *rpkts = ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktrcvcnt); - *xmit_wait = ipath_snap_cntr(dd, dd->ipath_cregs->cr_sendstallcnt); - - ret = 0; - -bail: - return ret; -} - -/** - * ipath_layer_get_counters - get various chip counters - * @dd: the infinipath device - * @cntrs: counters are placed here - * - * Return the counters needed by recv_pma_get_portcounters(). - */ -int ipath_layer_get_counters(struct ipath_devdata *dd, - struct ipath_layer_counters *cntrs) -{ - int ret; - - if (!(dd->ipath_flags & IPATH_INITTED)) { - /* no hardware, freeze, etc. */ - ipath_dbg("unit %u not usable\n", dd->ipath_unit); - ret = -EINVAL; - goto bail; - } - cntrs->symbol_error_counter = - ipath_snap_cntr(dd, dd->ipath_cregs->cr_ibsymbolerrcnt); - cntrs->link_error_recovery_counter = - ipath_snap_cntr(dd, dd->ipath_cregs->cr_iblinkerrrecovcnt); - /* - * The link downed counter counts when the other side downs the - * connection. We add in the number of times we downed the link - * due to local link integrity errors to compensate. - */ - cntrs->link_downed_counter = - ipath_snap_cntr(dd, dd->ipath_cregs->cr_iblinkdowncnt); - cntrs->port_rcv_errors = - ipath_snap_cntr(dd, dd->ipath_cregs->cr_rxdroppktcnt) + - ipath_snap_cntr(dd, dd->ipath_cregs->cr_rcvovflcnt) + - ipath_snap_cntr(dd, dd->ipath_cregs->cr_portovflcnt) + - ipath_snap_cntr(dd, dd->ipath_cregs->cr_err_rlencnt) + - ipath_snap_cntr(dd, dd->ipath_cregs->cr_invalidrlencnt) + - ipath_snap_cntr(dd, dd->ipath_cregs->cr_erricrccnt) + - ipath_snap_cntr(dd, dd->ipath_cregs->cr_errvcrccnt) + - ipath_snap_cntr(dd, dd->ipath_cregs->cr_errlpcrccnt) + - ipath_snap_cntr(dd, dd->ipath_cregs->cr_badformatcnt); - cntrs->port_rcv_remphys_errors = - ipath_snap_cntr(dd, dd->ipath_cregs->cr_rcvebpcnt); - cntrs->port_xmit_discards = - ipath_snap_cntr(dd, dd->ipath_cregs->cr_unsupvlcnt); - cntrs->port_xmit_data = - ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordsendcnt); - cntrs->port_rcv_data = - ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordrcvcnt); - cntrs->port_xmit_packets = - ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktsendcnt); - cntrs->port_rcv_packets = - ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktrcvcnt); - cntrs->local_link_integrity_errors = dd->ipath_lli_errors; - cntrs->excessive_buffer_overrun_errors = 0; /* XXX */ - - ret = 0; - -bail: - return ret; -} - -int ipath_layer_want_buffer(struct ipath_devdata *dd) -{ - set_bit(IPATH_S_PIOINTBUFAVAIL, &dd->ipath_sendctrl); - ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, - dd->ipath_sendctrl); - - return 0; -} - int ipath_layer_send_hdr(struct ipath_devdata *dd, struct ether_header *hdr) { int ret = 0; @@ -985,361 +367,3 @@ int ipath_layer_set_piointbufavail_int(struct ipath_devdata *dd) } EXPORT_SYMBOL_GPL(ipath_layer_set_piointbufavail_int); - -int ipath_layer_enable_timer(struct ipath_devdata *dd) -{ - /* - * HT-400 has a design flaw where the chip and kernel idea - * of the tail register don't always agree, and therefore we won't - * get an interrupt on the next packet received. - * If the board supports per packet receive interrupts, use it. - * Otherwise, the timer function periodically checks for packets - * to cover this case. - * Either way, the timer is needed for verbs layer related - * processing. - */ - if (dd->ipath_flags & IPATH_GPIO_INTR) { - ipath_write_kreg(dd, dd->ipath_kregs->kr_debugportselect, - 0x2074076542310ULL); - /* Enable GPIO bit 2 interrupt */ - ipath_write_kreg(dd, dd->ipath_kregs->kr_gpio_mask, - (u64) (1 << 2)); - } - - init_timer(&dd->verbs_timer); - dd->verbs_timer.function = __ipath_verbs_timer; - dd->verbs_timer.data = (unsigned long)dd; - dd->verbs_timer.expires = jiffies + 1; - add_timer(&dd->verbs_timer); - - return 0; -} - -int ipath_layer_disable_timer(struct ipath_devdata *dd) -{ - /* Disable GPIO bit 2 interrupt */ - if (dd->ipath_flags & IPATH_GPIO_INTR) - ipath_write_kreg(dd, dd->ipath_kregs->kr_gpio_mask, 0); - - del_timer_sync(&dd->verbs_timer); - - return 0; -} - -/** - * ipath_layer_set_verbs_flags - set the verbs layer flags - * @dd: the infinipath device - * @flags: the flags to set - */ -int ipath_layer_set_verbs_flags(struct ipath_devdata *dd, unsigned flags) -{ - struct ipath_devdata *ss; - unsigned long lflags; - - spin_lock_irqsave(&ipath_devs_lock, lflags); - - list_for_each_entry(ss, &ipath_dev_list, ipath_list) { - if (!(ss->ipath_flags & IPATH_INITTED)) - continue; - if ((flags & IPATH_VERBS_KERNEL_SMA) && - !(*ss->ipath_statusp & IPATH_STATUS_SMA)) - *ss->ipath_statusp |= IPATH_STATUS_OIB_SMA; - else - *ss->ipath_statusp &= ~IPATH_STATUS_OIB_SMA; - } - - spin_unlock_irqrestore(&ipath_devs_lock, lflags); - - return 0; -} - -/** - * ipath_layer_get_npkeys - return the size of the PKEY table for port 0 - * @dd: the infinipath device - */ -unsigned ipath_layer_get_npkeys(struct ipath_devdata *dd) -{ - return ARRAY_SIZE(dd->ipath_pd[0]->port_pkeys); -} - -/** - * ipath_layer_get_pkey - return the indexed PKEY from the port 0 PKEY table - * @dd: the infinipath device - * @index: the PKEY index - */ -unsigned ipath_layer_get_pkey(struct ipath_devdata *dd, unsigned index) -{ - unsigned ret; - - if (index >= ARRAY_SIZE(dd->ipath_pd[0]->port_pkeys)) - ret = 0; - else - ret = dd->ipath_pd[0]->port_pkeys[index]; - - return ret; -} - -/** - * ipath_layer_get_pkeys - return the PKEY table for port 0 - * @dd: the infinipath device - * @pkeys: the pkey table is placed here - */ -int ipath_layer_get_pkeys(struct ipath_devdata *dd, u16 * pkeys) -{ - struct ipath_portdata *pd = dd->ipath_pd[0]; - - memcpy(pkeys, pd->port_pkeys, sizeof(pd->port_pkeys)); - - return 0; -} - -/** - * rm_pkey - decrecment the reference count for the given PKEY - * @dd: the infinipath device - * @key: the PKEY index - * - * Return true if this was the last reference and the hardware table entry - * needs to be changed. - */ -static int rm_pkey(struct ipath_devdata *dd, u16 key) -{ - int i; - int ret; - - for (i = 0; i < ARRAY_SIZE(dd->ipath_pkeys); i++) { - if (dd->ipath_pkeys[i] != key) - continue; - if (atomic_dec_and_test(&dd->ipath_pkeyrefs[i])) { - dd->ipath_pkeys[i] = 0; - ret = 1; - goto bail; - } - break; - } - - ret = 0; - -bail: - return ret; -} - -/** - * add_pkey - add the given PKEY to the hardware table - * @dd: the infinipath device - * @key: the PKEY - * - * Return an error code if unable to add the entry, zero if no change, - * or 1 if the hardware PKEY register needs to be updated. - */ -static int add_pkey(struct ipath_devdata *dd, u16 key) -{ - int i; - u16 lkey = key & 0x7FFF; - int any = 0; - int ret; - - if (lkey == 0x7FFF) { - ret = 0; - goto bail; - } - - /* Look for an empty slot or a matching PKEY. */ - for (i = 0; i < ARRAY_SIZE(dd->ipath_pkeys); i++) { - if (!dd->ipath_pkeys[i]) { - any++; - continue; - } - /* If it matches exactly, try to increment the ref count */ - if (dd->ipath_pkeys[i] == key) { - if (atomic_inc_return(&dd->ipath_pkeyrefs[i]) > 1) { - ret = 0; - goto bail; - } - /* Lost the race. Look for an empty slot below. */ - atomic_dec(&dd->ipath_pkeyrefs[i]); - any++; - } - /* - * It makes no sense to have both the limited and unlimited - * PKEY set at the same time since the unlimited one will - * disable the limited one. - */ - if ((dd->ipath_pkeys[i] & 0x7FFF) == lkey) { - ret = -EEXIST; - goto bail; - } - } - if (!any) { - ret = -EBUSY; - goto bail; - } - for (i = 0; i < ARRAY_SIZE(dd->ipath_pkeys); i++) { - if (!dd->ipath_pkeys[i] && - atomic_inc_return(&dd->ipath_pkeyrefs[i]) == 1) { - /* for ipathstats, etc. */ - ipath_stats.sps_pkeys[i] = lkey; - dd->ipath_pkeys[i] = key; - ret = 1; - goto bail; - } - } - ret = -EBUSY; - -bail: - return ret; -} - -/** - * ipath_layer_set_pkeys - set the PKEY table for port 0 - * @dd: the infinipath device - * @pkeys: the PKEY table - */ -int ipath_layer_set_pkeys(struct ipath_devdata *dd, u16 * pkeys) -{ - struct ipath_portdata *pd; - int i; - int changed = 0; - - pd = dd->ipath_pd[0]; - - for (i = 0; i < ARRAY_SIZE(pd->port_pkeys); i++) { - u16 key = pkeys[i]; - u16 okey = pd->port_pkeys[i]; - - if (key == okey) - continue; - /* - * The value of this PKEY table entry is changing. - * Remove the old entry in the hardware's array of PKEYs. - */ - if (okey & 0x7FFF) - changed |= rm_pkey(dd, okey); - if (key & 0x7FFF) { - int ret = add_pkey(dd, key); - - if (ret < 0) - key = 0; - else - changed |= ret; - } - pd->port_pkeys[i] = key; - } - if (changed) { - u64 pkey; - - pkey = (u64) dd->ipath_pkeys[0] | - ((u64) dd->ipath_pkeys[1] << 16) | - ((u64) dd->ipath_pkeys[2] << 32) | - ((u64) dd->ipath_pkeys[3] << 48); - ipath_cdbg(VERBOSE, "p0 new pkey reg %llx\n", - (unsigned long long) pkey); - ipath_write_kreg(dd, dd->ipath_kregs->kr_partitionkey, - pkey); - } - return 0; -} - -/** - * ipath_layer_get_linkdowndefaultstate - get the default linkdown state - * @dd: the infinipath device - * - * Returns zero if the default is POLL, 1 if the default is SLEEP. - */ -int ipath_layer_get_linkdowndefaultstate(struct ipath_devdata *dd) -{ - return !!(dd->ipath_ibcctrl & INFINIPATH_IBCC_LINKDOWNDEFAULTSTATE); -} - -/** - * ipath_layer_set_linkdowndefaultstate - set the default linkdown state - * @dd: the infinipath device - * @sleep: the new state - * - * Note that this will only take effect when the link state changes. - */ -int ipath_layer_set_linkdowndefaultstate(struct ipath_devdata *dd, - int sleep) -{ - if (sleep) - dd->ipath_ibcctrl |= INFINIPATH_IBCC_LINKDOWNDEFAULTSTATE; - else - dd->ipath_ibcctrl &= ~INFINIPATH_IBCC_LINKDOWNDEFAULTSTATE; - ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, - dd->ipath_ibcctrl); - return 0; -} - -int ipath_layer_get_phyerrthreshold(struct ipath_devdata *dd) -{ - return (dd->ipath_ibcctrl >> - INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT) & - INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK; -} - -/** - * ipath_layer_set_phyerrthreshold - set the physical error threshold - * @dd: the infinipath device - * @n: the new threshold - * - * Note that this will only take effect when the link state changes. - */ -int ipath_layer_set_phyerrthreshold(struct ipath_devdata *dd, unsigned n) -{ - unsigned v; - - v = (dd->ipath_ibcctrl >> INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT) & - INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK; - if (v != n) { - dd->ipath_ibcctrl &= - ~(INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK << - INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT); - dd->ipath_ibcctrl |= - (u64) n << INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT; - ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, - dd->ipath_ibcctrl); - } - return 0; -} - -int ipath_layer_get_overrunthreshold(struct ipath_devdata *dd) -{ - return (dd->ipath_ibcctrl >> - INFINIPATH_IBCC_OVERRUNTHRESHOLD_SHIFT) & - INFINIPATH_IBCC_OVERRUNTHRESHOLD_MASK; -} - -/** - * ipath_layer_set_overrunthreshold - set the overrun threshold - * @dd: the infinipath device - * @n: the new threshold - * - * Note that this will only take effect when the link state changes. - */ -int ipath_layer_set_overrunthreshold(struct ipath_devdata *dd, unsigned n) -{ - unsigned v; - - v = (dd->ipath_ibcctrl >> INFINIPATH_IBCC_OVERRUNTHRESHOLD_SHIFT) & - INFINIPATH_IBCC_OVERRUNTHRESHOLD_MASK; - if (v != n) { - dd->ipath_ibcctrl &= - ~(INFINIPATH_IBCC_OVERRUNTHRESHOLD_MASK << - INFINIPATH_IBCC_OVERRUNTHRESHOLD_SHIFT); - dd->ipath_ibcctrl |= - (u64) n << INFINIPATH_IBCC_OVERRUNTHRESHOLD_SHIFT; - ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, - dd->ipath_ibcctrl); - } - return 0; -} - -int ipath_layer_get_boardname(struct ipath_devdata *dd, char *name, - size_t namelen) -{ - return dd->ipath_f_get_boardname(dd, name, namelen); -} - -u32 ipath_layer_get_rcvhdrentsize(struct ipath_devdata *dd) -{ - return dd->ipath_rcvhdrentsize; -} diff --git a/drivers/infiniband/hw/ipath/ipath_layer.h b/drivers/infiniband/hw/ipath/ipath_layer.h index 57c990a5715..4a27ede4994 100644 --- a/drivers/infiniband/hw/ipath/ipath_layer.h +++ b/drivers/infiniband/hw/ipath/ipath_layer.h @@ -40,73 +40,9 @@ */ struct sk_buff; -struct ipath_sge_state; struct ipath_devdata; struct ether_header; -struct ipath_layer_counters { - u64 symbol_error_counter; - u64 link_error_recovery_counter; - u64 link_downed_counter; - u64 port_rcv_errors; - u64 port_rcv_remphys_errors; - u64 port_xmit_discards; - u64 port_xmit_data; - u64 port_rcv_data; - u64 port_xmit_packets; - u64 port_rcv_packets; - u32 local_link_integrity_errors; - u32 excessive_buffer_overrun_errors; -}; - -/* - * A segment is a linear region of low physical memory. - * XXX Maybe we should use phys addr here and kmap()/kunmap(). - * Used by the verbs layer. - */ -struct ipath_seg { - void *vaddr; - size_t length; -}; - -/* The number of ipath_segs that fit in a page. */ -#define IPATH_SEGSZ (PAGE_SIZE / sizeof (struct ipath_seg)) - -struct ipath_segarray { - struct ipath_seg segs[IPATH_SEGSZ]; -}; - -struct ipath_mregion { - u64 user_base; /* User's address for this region */ - u64 iova; /* IB start address of this region */ - size_t length; - u32 lkey; - u32 offset; /* offset (bytes) to start of region */ - int access_flags; - u32 max_segs; /* number of ipath_segs in all the arrays */ - u32 mapsz; /* size of the map array */ - struct ipath_segarray *map[0]; /* the segments */ -}; - -/* - * These keep track of the copy progress within a memory region. - * Used by the verbs layer. - */ -struct ipath_sge { - struct ipath_mregion *mr; - void *vaddr; /* current pointer into the segment */ - u32 sge_length; /* length of the SGE */ - u32 length; /* remaining length of the segment */ - u16 m; /* current index: mr->map[m] */ - u16 n; /* current index: mr->map[m]->segs[n] */ -}; - -struct ipath_sge_state { - struct ipath_sge *sg_list; /* next SGE to be used if any */ - struct ipath_sge sge; /* progress state for the current SGE */ - u8 num_sge; -}; - int ipath_layer_register(void *(*l_add)(int, struct ipath_devdata *), void (*l_remove)(void *), int (*l_intr)(void *, u32), @@ -119,49 +55,9 @@ int ipath_layer_open(struct ipath_devdata *, u32 * pktmax); u16 ipath_layer_get_lid(struct ipath_devdata *dd); int ipath_layer_get_mac(struct ipath_devdata *dd, u8 *); u16 ipath_layer_get_bcast(struct ipath_devdata *dd); -u32 ipath_layer_get_cr_errpkey(struct ipath_devdata *dd); -int ipath_layer_set_linkstate(struct ipath_devdata *dd, u8 state); -int ipath_layer_set_mtu(struct ipath_devdata *, u16); -int ipath_set_lid(struct ipath_devdata *, u32, u8); int ipath_layer_send_hdr(struct ipath_devdata *dd, struct ether_header *hdr); -int ipath_verbs_send(struct ipath_devdata *dd, u32 hdrwords, - u32 * hdr, u32 len, struct ipath_sge_state *ss); int ipath_layer_set_piointbufavail_int(struct ipath_devdata *dd); -int ipath_layer_get_boardname(struct ipath_devdata *dd, char *name, - size_t namelen); -int ipath_layer_snapshot_counters(struct ipath_devdata *dd, u64 *swords, - u64 *rwords, u64 *spkts, u64 *rpkts, - u64 *xmit_wait); -int ipath_layer_get_counters(struct ipath_devdata *dd, - struct ipath_layer_counters *cntrs); -int ipath_layer_want_buffer(struct ipath_devdata *dd); -int ipath_layer_set_guid(struct ipath_devdata *, __be64 guid); -__be64 ipath_layer_get_guid(struct ipath_devdata *); -u32 ipath_layer_get_majrev(struct ipath_devdata *); -u32 ipath_layer_get_minrev(struct ipath_devdata *); -u32 ipath_layer_get_pcirev(struct ipath_devdata *); -u32 ipath_layer_get_flags(struct ipath_devdata *dd); -struct device *ipath_layer_get_device(struct ipath_devdata *dd); -u16 ipath_layer_get_deviceid(struct ipath_devdata *dd); -u32 ipath_layer_get_vendorid(struct ipath_devdata *); -u64 ipath_layer_get_lastibcstat(struct ipath_devdata *dd); -u32 ipath_layer_get_ibmtu(struct ipath_devdata *dd); -int ipath_layer_enable_timer(struct ipath_devdata *dd); -int ipath_layer_disable_timer(struct ipath_devdata *dd); -int ipath_layer_set_verbs_flags(struct ipath_devdata *dd, unsigned flags); -unsigned ipath_layer_get_npkeys(struct ipath_devdata *dd); -unsigned ipath_layer_get_pkey(struct ipath_devdata *dd, unsigned index); -int ipath_layer_get_pkeys(struct ipath_devdata *dd, u16 *pkeys); -int ipath_layer_set_pkeys(struct ipath_devdata *dd, u16 *pkeys); -int ipath_layer_get_linkdowndefaultstate(struct ipath_devdata *dd); -int ipath_layer_set_linkdowndefaultstate(struct ipath_devdata *dd, - int sleep); -int ipath_layer_get_phyerrthreshold(struct ipath_devdata *dd); -int ipath_layer_set_phyerrthreshold(struct ipath_devdata *dd, unsigned n); -int ipath_layer_get_overrunthreshold(struct ipath_devdata *dd); -int ipath_layer_set_overrunthreshold(struct ipath_devdata *dd, unsigned n); -u32 ipath_layer_get_rcvhdrentsize(struct ipath_devdata *dd); /* ipath_ether interrupt values */ #define IPATH_LAYER_INT_IF_UP 0x2 diff --git a/drivers/infiniband/hw/ipath/ipath_mad.c b/drivers/infiniband/hw/ipath/ipath_mad.c index d3402341b7d..72d1db89db8 100644 --- a/drivers/infiniband/hw/ipath/ipath_mad.c +++ b/drivers/infiniband/hw/ipath/ipath_mad.c @@ -101,15 +101,15 @@ static int recv_subn_get_nodeinfo(struct ib_smp *smp, nip->num_ports = ibdev->phys_port_cnt; /* This is already in network order */ nip->sys_guid = to_idev(ibdev)->sys_image_guid; - nip->node_guid = ipath_layer_get_guid(dd); + nip->node_guid = dd->ipath_guid; nip->port_guid = nip->sys_guid; - nip->partition_cap = cpu_to_be16(ipath_layer_get_npkeys(dd)); - nip->device_id = cpu_to_be16(ipath_layer_get_deviceid(dd)); - majrev = ipath_layer_get_majrev(dd); - minrev = ipath_layer_get_minrev(dd); + nip->partition_cap = cpu_to_be16(ipath_get_npkeys(dd)); + nip->device_id = cpu_to_be16(dd->ipath_deviceid); + majrev = dd->ipath_majrev; + minrev = dd->ipath_minrev; nip->revision = cpu_to_be32((majrev << 16) | minrev); nip->local_port_num = port; - vendor = ipath_layer_get_vendorid(dd); + vendor = dd->ipath_vendorid; nip->vendor_id[0] = 0; nip->vendor_id[1] = vendor >> 8; nip->vendor_id[2] = vendor; @@ -133,13 +133,89 @@ static int recv_subn_get_guidinfo(struct ib_smp *smp, */ if (startgx == 0) /* The first is a copy of the read-only HW GUID. */ - *p = ipath_layer_get_guid(to_idev(ibdev)->dd); + *p = to_idev(ibdev)->dd->ipath_guid; else smp->status |= IB_SMP_INVALID_FIELD; return reply(smp); } + +static int get_overrunthreshold(struct ipath_devdata *dd) +{ + return (dd->ipath_ibcctrl >> + INFINIPATH_IBCC_OVERRUNTHRESHOLD_SHIFT) & + INFINIPATH_IBCC_OVERRUNTHRESHOLD_MASK; +} + +/** + * set_overrunthreshold - set the overrun threshold + * @dd: the infinipath device + * @n: the new threshold + * + * Note that this will only take effect when the link state changes. + */ +static int set_overrunthreshold(struct ipath_devdata *dd, unsigned n) +{ + unsigned v; + + v = (dd->ipath_ibcctrl >> INFINIPATH_IBCC_OVERRUNTHRESHOLD_SHIFT) & + INFINIPATH_IBCC_OVERRUNTHRESHOLD_MASK; + if (v != n) { + dd->ipath_ibcctrl &= + ~(INFINIPATH_IBCC_OVERRUNTHRESHOLD_MASK << + INFINIPATH_IBCC_OVERRUNTHRESHOLD_SHIFT); + dd->ipath_ibcctrl |= + (u64) n << INFINIPATH_IBCC_OVERRUNTHRESHOLD_SHIFT; + ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, + dd->ipath_ibcctrl); + } + return 0; +} + +static int get_phyerrthreshold(struct ipath_devdata *dd) +{ + return (dd->ipath_ibcctrl >> + INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT) & + INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK; +} + +/** + * set_phyerrthreshold - set the physical error threshold + * @dd: the infinipath device + * @n: the new threshold + * + * Note that this will only take effect when the link state changes. + */ +static int set_phyerrthreshold(struct ipath_devdata *dd, unsigned n) +{ + unsigned v; + + v = (dd->ipath_ibcctrl >> INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT) & + INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK; + if (v != n) { + dd->ipath_ibcctrl &= + ~(INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK << + INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT); + dd->ipath_ibcctrl |= + (u64) n << INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT; + ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, + dd->ipath_ibcctrl); + } + return 0; +} + +/** + * get_linkdowndefaultstate - get the default linkdown state + * @dd: the infinipath device + * + * Returns zero if the default is POLL, 1 if the default is SLEEP. + */ +static int get_linkdowndefaultstate(struct ipath_devdata *dd) +{ + return !!(dd->ipath_ibcctrl & INFINIPATH_IBCC_LINKDOWNDEFAULTSTATE); +} + static int recv_subn_get_portinfo(struct ib_smp *smp, struct ib_device *ibdev, u8 port) { @@ -166,7 +242,7 @@ static int recv_subn_get_portinfo(struct ib_smp *smp, (dev->mkeyprot_resv_lmc >> 6) == 0) pip->mkey = dev->mkey; pip->gid_prefix = dev->gid_prefix; - lid = ipath_layer_get_lid(dev->dd); + lid = dev->dd->ipath_lid; pip->lid = lid ? cpu_to_be16(lid) : IB_LID_PERMISSIVE; pip->sm_lid = cpu_to_be16(dev->sm_lid); pip->cap_mask = cpu_to_be32(dev->port_cap_flags); @@ -177,14 +253,14 @@ static int recv_subn_get_portinfo(struct ib_smp *smp, pip->link_width_supported = 3; /* 1x or 4x */ pip->link_width_active = 2; /* 4x */ pip->linkspeed_portstate = 0x10; /* 2.5Gbps */ - ibcstat = ipath_layer_get_lastibcstat(dev->dd); + ibcstat = dev->dd->ipath_lastibcstat; pip->linkspeed_portstate |= ((ibcstat >> 4) & 0x3) + 1; pip->portphysstate_linkdown = (ipath_cvt_physportstate[ibcstat & 0xf] << 4) | - (ipath_layer_get_linkdowndefaultstate(dev->dd) ? 1 : 2); + (get_linkdowndefaultstate(dev->dd) ? 1 : 2); pip->mkeyprot_resv_lmc = dev->mkeyprot_resv_lmc; pip->linkspeedactive_enabled = 0x11; /* 2.5Gbps, 2.5Gbps */ - switch (ipath_layer_get_ibmtu(dev->dd)) { + switch (dev->dd->ipath_ibmtu) { case 4096: mtu = IB_MTU_4096; break; @@ -217,7 +293,7 @@ static int recv_subn_get_portinfo(struct ib_smp *smp, pip->mkey_violations = cpu_to_be16(dev->mkey_violations); /* P_KeyViolations are counted by hardware. */ pip->pkey_violations = - cpu_to_be16((ipath_layer_get_cr_errpkey(dev->dd) - + cpu_to_be16((ipath_get_cr_errpkey(dev->dd) - dev->z_pkey_violations) & 0xFFFF); pip->qkey_violations = cpu_to_be16(dev->qkey_violations); /* Only the hardware GUID is supported for now */ @@ -226,8 +302,8 @@ static int recv_subn_get_portinfo(struct ib_smp *smp, /* 32.768 usec. response time (guessing) */ pip->resv_resptimevalue = 3; pip->localphyerrors_overrunerrors = - (ipath_layer_get_phyerrthreshold(dev->dd) << 4) | - ipath_layer_get_overrunthreshold(dev->dd); + (get_phyerrthreshold(dev->dd) << 4) | + get_overrunthreshold(dev->dd); /* pip->max_credit_hint; */ /* pip->link_roundtrip_latency[3]; */ @@ -237,6 +313,20 @@ bail: return ret; } +/** + * get_pkeys - return the PKEY table for port 0 + * @dd: the infinipath device + * @pkeys: the pkey table is placed here + */ +static int get_pkeys(struct ipath_devdata *dd, u16 * pkeys) +{ + struct ipath_portdata *pd = dd->ipath_pd[0]; + + memcpy(pkeys, pd->port_pkeys, sizeof(pd->port_pkeys)); + + return 0; +} + static int recv_subn_get_pkeytable(struct ib_smp *smp, struct ib_device *ibdev) { @@ -249,9 +339,9 @@ static int recv_subn_get_pkeytable(struct ib_smp *smp, memset(smp->data, 0, sizeof(smp->data)); if (startpx == 0) { struct ipath_ibdev *dev = to_idev(ibdev); - unsigned i, n = ipath_layer_get_npkeys(dev->dd); + unsigned i, n = ipath_get_npkeys(dev->dd); - ipath_layer_get_pkeys(dev->dd, p); + get_pkeys(dev->dd, p); for (i = 0; i < n; i++) q[i] = cpu_to_be16(p[i]); @@ -268,6 +358,24 @@ static int recv_subn_set_guidinfo(struct ib_smp *smp, return recv_subn_get_guidinfo(smp, ibdev); } +/** + * set_linkdowndefaultstate - set the default linkdown state + * @dd: the infinipath device + * @sleep: the new state + * + * Note that this will only take effect when the link state changes. + */ +static int set_linkdowndefaultstate(struct ipath_devdata *dd, int sleep) +{ + if (sleep) + dd->ipath_ibcctrl |= INFINIPATH_IBCC_LINKDOWNDEFAULTSTATE; + else + dd->ipath_ibcctrl &= ~INFINIPATH_IBCC_LINKDOWNDEFAULTSTATE; + ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, + dd->ipath_ibcctrl); + return 0; +} + /** * recv_subn_set_portinfo - set port information * @smp: the incoming SM packet @@ -290,7 +398,7 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, u8 state; u16 lstate; u32 mtu; - int ret; + int ret, ore; if (be32_to_cpu(smp->attr_mod) > ibdev->phys_port_cnt) goto err; @@ -304,7 +412,7 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, dev->mkey_lease_period = be16_to_cpu(pip->mkey_lease_period); lid = be16_to_cpu(pip->lid); - if (lid != ipath_layer_get_lid(dev->dd)) { + if (lid != dev->dd->ipath_lid) { /* Must be a valid unicast LID address. */ if (lid == 0 || lid >= IPATH_MULTICAST_LID_BASE) goto err; @@ -342,11 +450,11 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, case 0: /* NOP */ break; case 1: /* SLEEP */ - if (ipath_layer_set_linkdowndefaultstate(dev->dd, 1)) + if (set_linkdowndefaultstate(dev->dd, 1)) goto err; break; case 2: /* POLL */ - if (ipath_layer_set_linkdowndefaultstate(dev->dd, 0)) + if (set_linkdowndefaultstate(dev->dd, 0)) goto err; break; default: @@ -376,7 +484,7 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, /* XXX We have already partially updated our state! */ goto err; } - ipath_layer_set_mtu(dev->dd, mtu); + ipath_set_mtu(dev->dd, mtu); dev->sm_sl = pip->neighbormtu_mastersmsl & 0xF; @@ -392,20 +500,16 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, * later. */ if (pip->pkey_violations == 0) - dev->z_pkey_violations = - ipath_layer_get_cr_errpkey(dev->dd); + dev->z_pkey_violations = ipath_get_cr_errpkey(dev->dd); if (pip->qkey_violations == 0) dev->qkey_violations = 0; - if (ipath_layer_set_phyerrthreshold( - dev->dd, - (pip->localphyerrors_overrunerrors >> 4) & 0xF)) + ore = pip->localphyerrors_overrunerrors; + if (set_phyerrthreshold(dev->dd, (ore >> 4) & 0xF)) goto err; - if (ipath_layer_set_overrunthreshold( - dev->dd, - (pip->localphyerrors_overrunerrors & 0xF))) + if (set_overrunthreshold(dev->dd, (ore & 0xF))) goto err; dev->subnet_timeout = pip->clientrereg_resv_subnetto & 0x1F; @@ -423,7 +527,7 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, * is down or is being set to down. */ state = pip->linkspeed_portstate & 0xF; - flags = ipath_layer_get_flags(dev->dd); + flags = dev->dd->ipath_flags; lstate = (pip->portphysstate_linkdown >> 4) & 0xF; if (lstate && !(state == IB_PORT_DOWN || state == IB_PORT_NOP)) goto err; @@ -439,7 +543,7 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, /* FALLTHROUGH */ case IB_PORT_DOWN: if (lstate == 0) - if (ipath_layer_get_linkdowndefaultstate(dev->dd)) + if (get_linkdowndefaultstate(dev->dd)) lstate = IPATH_IB_LINKDOWN_SLEEP; else lstate = IPATH_IB_LINKDOWN; @@ -451,7 +555,7 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, lstate = IPATH_IB_LINKDOWN_DISABLE; else goto err; - ipath_layer_set_linkstate(dev->dd, lstate); + ipath_set_linkstate(dev->dd, lstate); if (flags & IPATH_LINKACTIVE) { event.event = IB_EVENT_PORT_ERR; ib_dispatch_event(&event); @@ -460,7 +564,7 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, case IB_PORT_ARMED: if (!(flags & (IPATH_LINKINIT | IPATH_LINKACTIVE))) break; - ipath_layer_set_linkstate(dev->dd, IPATH_IB_LINKARM); + ipath_set_linkstate(dev->dd, IPATH_IB_LINKARM); if (flags & IPATH_LINKACTIVE) { event.event = IB_EVENT_PORT_ERR; ib_dispatch_event(&event); @@ -469,7 +573,7 @@ static int recv_subn_set_portinfo(struct ib_smp *smp, case IB_PORT_ACTIVE: if (!(flags & IPATH_LINKARMED)) break; - ipath_layer_set_linkstate(dev->dd, IPATH_IB_LINKACTIVE); + ipath_set_linkstate(dev->dd, IPATH_IB_LINKACTIVE); event.event = IB_EVENT_PORT_ACTIVE; ib_dispatch_event(&event); break; @@ -493,6 +597,152 @@ done: return ret; } +/** + * rm_pkey - decrecment the reference count for the given PKEY + * @dd: the infinipath device + * @key: the PKEY index + * + * Return true if this was the last reference and the hardware table entry + * needs to be changed. + */ +static int rm_pkey(struct ipath_devdata *dd, u16 key) +{ + int i; + int ret; + + for (i = 0; i < ARRAY_SIZE(dd->ipath_pkeys); i++) { + if (dd->ipath_pkeys[i] != key) + continue; + if (atomic_dec_and_test(&dd->ipath_pkeyrefs[i])) { + dd->ipath_pkeys[i] = 0; + ret = 1; + goto bail; + } + break; + } + + ret = 0; + +bail: + return ret; +} + +/** + * add_pkey - add the given PKEY to the hardware table + * @dd: the infinipath device + * @key: the PKEY + * + * Return an error code if unable to add the entry, zero if no change, + * or 1 if the hardware PKEY register needs to be updated. + */ +static int add_pkey(struct ipath_devdata *dd, u16 key) +{ + int i; + u16 lkey = key & 0x7FFF; + int any = 0; + int ret; + + if (lkey == 0x7FFF) { + ret = 0; + goto bail; + } + + /* Look for an empty slot or a matching PKEY. */ + for (i = 0; i < ARRAY_SIZE(dd->ipath_pkeys); i++) { + if (!dd->ipath_pkeys[i]) { + any++; + continue; + } + /* If it matches exactly, try to increment the ref count */ + if (dd->ipath_pkeys[i] == key) { + if (atomic_inc_return(&dd->ipath_pkeyrefs[i]) > 1) { + ret = 0; + goto bail; + } + /* Lost the race. Look for an empty slot below. */ + atomic_dec(&dd->ipath_pkeyrefs[i]); + any++; + } + /* + * It makes no sense to have both the limited and unlimited + * PKEY set at the same time since the unlimited one will + * disable the limited one. + */ + if ((dd->ipath_pkeys[i] & 0x7FFF) == lkey) { + ret = -EEXIST; + goto bail; + } + } + if (!any) { + ret = -EBUSY; + goto bail; + } + for (i = 0; i < ARRAY_SIZE(dd->ipath_pkeys); i++) { + if (!dd->ipath_pkeys[i] && + atomic_inc_return(&dd->ipath_pkeyrefs[i]) == 1) { + /* for ipathstats, etc. */ + ipath_stats.sps_pkeys[i] = lkey; + dd->ipath_pkeys[i] = key; + ret = 1; + goto bail; + } + } + ret = -EBUSY; + +bail: + return ret; +} + +/** + * set_pkeys - set the PKEY table for port 0 + * @dd: the infinipath device + * @pkeys: the PKEY table + */ +static int set_pkeys(struct ipath_devdata *dd, u16 *pkeys) +{ + struct ipath_portdata *pd; + int i; + int changed = 0; + + pd = dd->ipath_pd[0]; + + for (i = 0; i < ARRAY_SIZE(pd->port_pkeys); i++) { + u16 key = pkeys[i]; + u16 okey = pd->port_pkeys[i]; + + if (key == okey) + continue; + /* + * The value of this PKEY table entry is changing. + * Remove the old entry in the hardware's array of PKEYs. + */ + if (okey & 0x7FFF) + changed |= rm_pkey(dd, okey); + if (key & 0x7FFF) { + int ret = add_pkey(dd, key); + + if (ret < 0) + key = 0; + else + changed |= ret; + } + pd->port_pkeys[i] = key; + } + if (changed) { + u64 pkey; + + pkey = (u64) dd->ipath_pkeys[0] | + ((u64) dd->ipath_pkeys[1] << 16) | + ((u64) dd->ipath_pkeys[2] << 32) | + ((u64) dd->ipath_pkeys[3] << 48); + ipath_cdbg(VERBOSE, "p0 new pkey reg %llx\n", + (unsigned long long) pkey); + ipath_write_kreg(dd, dd->ipath_kregs->kr_partitionkey, + pkey); + } + return 0; +} + static int recv_subn_set_pkeytable(struct ib_smp *smp, struct ib_device *ibdev) { @@ -500,13 +750,12 @@ static int recv_subn_set_pkeytable(struct ib_smp *smp, __be16 *p = (__be16 *) smp->data; u16 *q = (u16 *) smp->data; struct ipath_ibdev *dev = to_idev(ibdev); - unsigned i, n = ipath_layer_get_npkeys(dev->dd); + unsigned i, n = ipath_get_npkeys(dev->dd); for (i = 0; i < n; i++) q[i] = be16_to_cpu(p[i]); - if (startpx != 0 || - ipath_layer_set_pkeys(dev->dd, q) != 0) + if (startpx != 0 || set_pkeys(dev->dd, q) != 0) smp->status |= IB_SMP_INVALID_FIELD; return recv_subn_get_pkeytable(smp, ibdev); @@ -844,10 +1093,10 @@ static int recv_pma_get_portcounters(struct ib_perf *pmp, struct ib_pma_portcounters *p = (struct ib_pma_portcounters *) pmp->data; struct ipath_ibdev *dev = to_idev(ibdev); - struct ipath_layer_counters cntrs; + struct ipath_verbs_counters cntrs; u8 port_select = p->port_select; - ipath_layer_get_counters(dev->dd, &cntrs); + ipath_get_counters(dev->dd, &cntrs); /* Adjust counters for any resets done. */ cntrs.symbol_error_counter -= dev->z_symbol_error_counter; @@ -944,8 +1193,8 @@ static int recv_pma_get_portcounters_ext(struct ib_perf *pmp, u64 swords, rwords, spkts, rpkts, xwait; u8 port_select = p->port_select; - ipath_layer_snapshot_counters(dev->dd, &swords, &rwords, &spkts, - &rpkts, &xwait); + ipath_snapshot_counters(dev->dd, &swords, &rwords, &spkts, + &rpkts, &xwait); /* Adjust counters for any resets done. */ swords -= dev->z_port_xmit_data; @@ -978,13 +1227,13 @@ static int recv_pma_set_portcounters(struct ib_perf *pmp, struct ib_pma_portcounters *p = (struct ib_pma_portcounters *) pmp->data; struct ipath_ibdev *dev = to_idev(ibdev); - struct ipath_layer_counters cntrs; + struct ipath_verbs_counters cntrs; /* * Since the HW doesn't support clearing counters, we save the * current count and subtract it from future responses. */ - ipath_layer_get_counters(dev->dd, &cntrs); + ipath_get_counters(dev->dd, &cntrs); if (p->counter_select & IB_PMA_SEL_SYMBOL_ERROR) dev->z_symbol_error_counter = cntrs.symbol_error_counter; @@ -1041,8 +1290,8 @@ static int recv_pma_set_portcounters_ext(struct ib_perf *pmp, struct ipath_ibdev *dev = to_idev(ibdev); u64 swords, rwords, spkts, rpkts, xwait; - ipath_layer_snapshot_counters(dev->dd, &swords, &rwords, &spkts, - &rpkts, &xwait); + ipath_snapshot_counters(dev->dd, &swords, &rwords, &spkts, + &rpkts, &xwait); if (p->counter_select & IB_PMA_SELX_PORT_XMIT_DATA) dev->z_port_xmit_data = swords; diff --git a/drivers/infiniband/hw/ipath/ipath_mr.c b/drivers/infiniband/hw/ipath/ipath_mr.c index 4ac31a5da33..b36f6fb3e37 100644 --- a/drivers/infiniband/hw/ipath/ipath_mr.c +++ b/drivers/infiniband/hw/ipath/ipath_mr.c @@ -36,6 +36,18 @@ #include "ipath_verbs.h" +/* Fast memory region */ +struct ipath_fmr { + struct ib_fmr ibfmr; + u8 page_shift; + struct ipath_mregion mr; /* must be last */ +}; + +static inline struct ipath_fmr *to_ifmr(struct ib_fmr *ibfmr) +{ + return container_of(ibfmr, struct ipath_fmr, ibfmr); +} + /** * ipath_get_dma_mr - get a DMA memory region * @pd: protection domain for this memory region diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index 1ccfc909db1..9228d59b59d 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -461,7 +461,7 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, goto inval; if (attr_mask & IB_QP_PKEY_INDEX) - if (attr->pkey_index >= ipath_layer_get_npkeys(dev->dd)) + if (attr->pkey_index >= ipath_get_npkeys(dev->dd)) goto inval; if (attr_mask & IB_QP_MIN_RNR_TIMER) @@ -644,6 +644,33 @@ __be32 ipath_compute_aeth(struct ipath_qp *qp) return cpu_to_be32(aeth); } +/** + * set_verbs_flags - set the verbs layer flags + * @dd: the infinipath device + * @flags: the flags to set + */ +static int set_verbs_flags(struct ipath_devdata *dd, unsigned flags) +{ + struct ipath_devdata *ss; + unsigned long lflags; + + spin_lock_irqsave(&ipath_devs_lock, lflags); + + list_for_each_entry(ss, &ipath_dev_list, ipath_list) { + if (!(ss->ipath_flags & IPATH_INITTED)) + continue; + if ((flags & IPATH_VERBS_KERNEL_SMA) && + !(*ss->ipath_statusp & IPATH_STATUS_SMA)) + *ss->ipath_statusp |= IPATH_STATUS_OIB_SMA; + else + *ss->ipath_statusp &= ~IPATH_STATUS_OIB_SMA; + } + + spin_unlock_irqrestore(&ipath_devs_lock, lflags); + + return 0; +} + /** * ipath_create_qp - create a queue pair for a device * @ibpd: the protection domain who's device we create the queue pair for @@ -760,8 +787,7 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd, /* Tell the core driver that the kernel SMA is present. */ if (init_attr->qp_type == IB_QPT_SMI) - ipath_layer_set_verbs_flags(dev->dd, - IPATH_VERBS_KERNEL_SMA); + set_verbs_flags(dev->dd, IPATH_VERBS_KERNEL_SMA); break; default: @@ -838,7 +864,7 @@ int ipath_destroy_qp(struct ib_qp *ibqp) /* Tell the core driver that the kernel SMA is gone. */ if (qp->ibqp.qp_type == IB_QPT_SMI) - ipath_layer_set_verbs_flags(dev->dd, 0); + set_verbs_flags(dev->dd, 0); spin_lock_irqsave(&qp->s_lock, flags); qp->state = IB_QPS_ERR; diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c index 774d1615ce2..a08654042c0 100644 --- a/drivers/infiniband/hw/ipath/ipath_rc.c +++ b/drivers/infiniband/hw/ipath/ipath_rc.c @@ -32,7 +32,7 @@ */ #include "ipath_verbs.h" -#include "ipath_common.h" +#include "ipath_kernel.h" /* cut down ridiculously long IB macro names */ #define OP(x) IB_OPCODE_RC_##x @@ -540,7 +540,7 @@ static void send_rc_ack(struct ipath_qp *qp) lrh0 = IPATH_LRH_GRH; } /* read pkey_index w/o lock (its atomic) */ - bth0 = ipath_layer_get_pkey(dev->dd, qp->s_pkey_index); + bth0 = ipath_get_pkey(dev->dd, qp->s_pkey_index); if (qp->r_nak_state) ohdr->u.aeth = cpu_to_be32((qp->r_msn & IPATH_MSN_MASK) | (qp->r_nak_state << @@ -557,7 +557,7 @@ static void send_rc_ack(struct ipath_qp *qp) hdr.lrh[0] = cpu_to_be16(lrh0); hdr.lrh[1] = cpu_to_be16(qp->remote_ah_attr.dlid); hdr.lrh[2] = cpu_to_be16(hwords + SIZE_OF_CRC); - hdr.lrh[3] = cpu_to_be16(ipath_layer_get_lid(dev->dd)); + hdr.lrh[3] = cpu_to_be16(dev->dd->ipath_lid); ohdr->bth[0] = cpu_to_be32(bth0); ohdr->bth[1] = cpu_to_be32(qp->remote_qpn); ohdr->bth[2] = cpu_to_be32(qp->r_ack_psn & IPATH_PSN_MASK); @@ -1323,8 +1323,7 @@ void ipath_rc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, * the eager header buffer size to 56 bytes so the last 4 * bytes of the BTH header (PSN) is in the data buffer. */ - header_in_data = - ipath_layer_get_rcvhdrentsize(dev->dd) == 16; + header_in_data = dev->dd->ipath_rcvhdrentsize == 16; if (header_in_data) { psn = be32_to_cpu(((__be32 *) data)[0]); data += sizeof(__be32); diff --git a/drivers/infiniband/hw/ipath/ipath_ruc.c b/drivers/infiniband/hw/ipath/ipath_ruc.c index dd09420d677..5c1da2d25e0 100644 --- a/drivers/infiniband/hw/ipath/ipath_ruc.c +++ b/drivers/infiniband/hw/ipath/ipath_ruc.c @@ -470,6 +470,15 @@ done: wake_up(&qp->wait); } +static int want_buffer(struct ipath_devdata *dd) +{ + set_bit(IPATH_S_PIOINTBUFAVAIL, &dd->ipath_sendctrl); + ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, + dd->ipath_sendctrl); + + return 0; +} + /** * ipath_no_bufs_available - tell the layer driver we need buffers * @qp: the QP that caused the problem @@ -486,7 +495,7 @@ void ipath_no_bufs_available(struct ipath_qp *qp, struct ipath_ibdev *dev) list_add_tail(&qp->piowait, &dev->piowait); spin_unlock_irqrestore(&dev->pending_lock, flags); /* - * Note that as soon as ipath_layer_want_buffer() is called and + * Note that as soon as want_buffer() is called and * possibly before it returns, ipath_ib_piobufavail() * could be called. If we are still in the tasklet function, * tasklet_hi_schedule() will not call us until the next time @@ -496,7 +505,7 @@ void ipath_no_bufs_available(struct ipath_qp *qp, struct ipath_ibdev *dev) */ clear_bit(IPATH_S_BUSY, &qp->s_flags); tasklet_unlock(&qp->s_task); - ipath_layer_want_buffer(dev->dd); + want_buffer(dev->dd); dev->n_piowait++; } @@ -611,7 +620,7 @@ u32 ipath_make_grh(struct ipath_ibdev *dev, struct ib_grh *hdr, hdr->hop_limit = grh->hop_limit; /* The SGID is 32-bit aligned. */ hdr->sgid.global.subnet_prefix = dev->gid_prefix; - hdr->sgid.global.interface_id = ipath_layer_get_guid(dev->dd); + hdr->sgid.global.interface_id = dev->dd->ipath_guid; hdr->dgid = grh->dgid; /* GRH header size in 32-bit words. */ @@ -643,8 +652,7 @@ void ipath_do_ruc_send(unsigned long data) if (test_and_set_bit(IPATH_S_BUSY, &qp->s_flags)) goto bail; - if (unlikely(qp->remote_ah_attr.dlid == - ipath_layer_get_lid(dev->dd))) { + if (unlikely(qp->remote_ah_attr.dlid == dev->dd->ipath_lid)) { ipath_ruc_loopback(qp); goto clear; } @@ -711,8 +719,8 @@ again: qp->s_hdr.lrh[1] = cpu_to_be16(qp->remote_ah_attr.dlid); qp->s_hdr.lrh[2] = cpu_to_be16(qp->s_hdrwords + nwords + SIZE_OF_CRC); - qp->s_hdr.lrh[3] = cpu_to_be16(ipath_layer_get_lid(dev->dd)); - bth0 |= ipath_layer_get_pkey(dev->dd, qp->s_pkey_index); + qp->s_hdr.lrh[3] = cpu_to_be16(dev->dd->ipath_lid); + bth0 |= ipath_get_pkey(dev->dd, qp->s_pkey_index); bth0 |= extra_bytes << 20; ohdr->bth[0] = cpu_to_be32(bth0); ohdr->bth[1] = cpu_to_be32(qp->remote_qpn); diff --git a/drivers/infiniband/hw/ipath/ipath_sysfs.c b/drivers/infiniband/hw/ipath/ipath_sysfs.c index b98821d7801..7396a63840d 100644 --- a/drivers/infiniband/hw/ipath/ipath_sysfs.c +++ b/drivers/infiniband/hw/ipath/ipath_sysfs.c @@ -35,7 +35,6 @@ #include #include "ipath_kernel.h" -#include "ipath_layer.h" #include "ipath_common.h" /** @@ -227,7 +226,6 @@ static ssize_t store_mlid(struct device *dev, unit = dd->ipath_unit; dd->ipath_mlid = mlid; - ipath_layer_intr(dd, IPATH_LAYER_INT_BCAST); goto bail; invalid: @@ -467,7 +465,7 @@ static ssize_t store_link_state(struct device *dev, if (ret < 0) goto invalid; - r = ipath_layer_set_linkstate(dd, state); + r = ipath_set_linkstate(dd, state); if (r < 0) { ret = r; goto bail; @@ -502,7 +500,7 @@ static ssize_t store_mtu(struct device *dev, if (ret < 0) goto invalid; - r = ipath_layer_set_mtu(dd, mtu); + r = ipath_set_mtu(dd, mtu); if (r < 0) ret = r; diff --git a/drivers/infiniband/hw/ipath/ipath_uc.c b/drivers/infiniband/hw/ipath/ipath_uc.c index c33abea2d5a..0fd3cded16b 100644 --- a/drivers/infiniband/hw/ipath/ipath_uc.c +++ b/drivers/infiniband/hw/ipath/ipath_uc.c @@ -32,7 +32,7 @@ */ #include "ipath_verbs.h" -#include "ipath_common.h" +#include "ipath_kernel.h" /* cut down ridiculously long IB macro names */ #define OP(x) IB_OPCODE_UC_##x @@ -261,8 +261,7 @@ void ipath_uc_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, * size to 56 bytes so the last 4 bytes of * the BTH header (PSN) is in the data buffer. */ - header_in_data = - ipath_layer_get_rcvhdrentsize(dev->dd) == 16; + header_in_data = dev->dd->ipath_rcvhdrentsize == 16; if (header_in_data) { psn = be32_to_cpu(((__be32 *) data)[0]); data += sizeof(__be32); diff --git a/drivers/infiniband/hw/ipath/ipath_ud.c b/drivers/infiniband/hw/ipath/ipath_ud.c index 82439fcfc2f..6991d1d74e3 100644 --- a/drivers/infiniband/hw/ipath/ipath_ud.c +++ b/drivers/infiniband/hw/ipath/ipath_ud.c @@ -353,7 +353,7 @@ int ipath_post_ud_send(struct ipath_qp *qp, struct ib_send_wr *wr) ss.num_sge++; } /* Check for invalid packet size. */ - if (len > ipath_layer_get_ibmtu(dev->dd)) { + if (len > dev->dd->ipath_ibmtu) { ret = -EINVAL; goto bail; } @@ -375,7 +375,7 @@ int ipath_post_ud_send(struct ipath_qp *qp, struct ib_send_wr *wr) dev->n_unicast_xmit++; lid = ah_attr->dlid & ~((1 << (dev->mkeyprot_resv_lmc & 7)) - 1); - if (unlikely(lid == ipath_layer_get_lid(dev->dd))) { + if (unlikely(lid == dev->dd->ipath_lid)) { /* * Pass in an uninitialized ib_wc to save stack * space. @@ -404,7 +404,7 @@ int ipath_post_ud_send(struct ipath_qp *qp, struct ib_send_wr *wr) qp->s_hdr.u.l.grh.sgid.global.subnet_prefix = dev->gid_prefix; qp->s_hdr.u.l.grh.sgid.global.interface_id = - ipath_layer_get_guid(dev->dd); + dev->dd->ipath_guid; qp->s_hdr.u.l.grh.dgid = ah_attr->grh.dgid; /* * Don't worry about sending to locally attached multicast @@ -434,7 +434,7 @@ int ipath_post_ud_send(struct ipath_qp *qp, struct ib_send_wr *wr) qp->s_hdr.lrh[0] = cpu_to_be16(lrh0); qp->s_hdr.lrh[1] = cpu_to_be16(ah_attr->dlid); /* DEST LID */ qp->s_hdr.lrh[2] = cpu_to_be16(hwords + nwords + SIZE_OF_CRC); - lid = ipath_layer_get_lid(dev->dd); + lid = dev->dd->ipath_lid; if (lid) { lid |= ah_attr->src_path_bits & ((1 << (dev->mkeyprot_resv_lmc & 7)) - 1); @@ -445,7 +445,7 @@ int ipath_post_ud_send(struct ipath_qp *qp, struct ib_send_wr *wr) bth0 |= 1 << 23; bth0 |= extra_bytes << 20; bth0 |= qp->ibqp.qp_type == IB_QPT_SMI ? IPATH_DEFAULT_P_KEY : - ipath_layer_get_pkey(dev->dd, qp->s_pkey_index); + ipath_get_pkey(dev->dd, qp->s_pkey_index); ohdr->bth[0] = cpu_to_be32(bth0); /* * Use the multicast QP if the destination LID is a multicast LID. @@ -531,8 +531,7 @@ void ipath_ud_rcv(struct ipath_ibdev *dev, struct ipath_ib_header *hdr, * the eager header buffer size to 56 bytes so the last 12 * bytes of the IB header is in the data buffer. */ - header_in_data = - ipath_layer_get_rcvhdrentsize(dev->dd) == 16; + header_in_data = dev->dd->ipath_rcvhdrentsize == 16; if (header_in_data) { qkey = be32_to_cpu(((__be32 *) data)[1]); src_qp = be32_to_cpu(((__be32 *) data)[2]); diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 15edec9227e..3c47620e988 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -33,15 +33,13 @@ #include #include +#include #include #include "ipath_kernel.h" #include "ipath_verbs.h" #include "ipath_common.h" -/* Not static, because we don't want the compiler removing it */ -const char ipath_verbs_version[] = "ipath_verbs " IPATH_IDSTR; - static unsigned int ib_ipath_qp_table_size = 251; module_param_named(qp_table_size, ib_ipath_qp_table_size, uint, S_IRUGO); MODULE_PARM_DESC(qp_table_size, "QP table size"); @@ -109,10 +107,6 @@ module_param_named(max_srq_wrs, ib_ipath_max_srq_wrs, uint, S_IWUSR | S_IRUGO); MODULE_PARM_DESC(max_srq_wrs, "Maximum number of SRQ WRs support"); -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("QLogic "); -MODULE_DESCRIPTION("QLogic InfiniPath driver"); - const int ib_ipath_state_ops[IB_QPS_ERR + 1] = { [IB_QPS_RESET] = 0, [IB_QPS_INIT] = IPATH_POST_RECV_OK, @@ -125,6 +119,16 @@ const int ib_ipath_state_ops[IB_QPS_ERR + 1] = { [IB_QPS_ERR] = 0, }; +struct ipath_ucontext { + struct ib_ucontext ibucontext; +}; + +static inline struct ipath_ucontext *to_iucontext(struct ib_ucontext + *ibucontext) +{ + return container_of(ibucontext, struct ipath_ucontext, ibucontext); +} + /* * Translate ib_wr_opcode into ib_wc_opcode. */ @@ -400,7 +404,7 @@ void ipath_ib_rcv(struct ipath_ibdev *dev, void *rhdr, void *data, lid = be16_to_cpu(hdr->lrh[1]); if (lid < IPATH_MULTICAST_LID_BASE) { lid &= ~((1 << (dev->mkeyprot_resv_lmc & 7)) - 1); - if (unlikely(lid != ipath_layer_get_lid(dev->dd))) { + if (unlikely(lid != dev->dd->ipath_lid)) { dev->rcv_errors++; goto bail; } @@ -511,19 +515,19 @@ void ipath_ib_timer(struct ipath_ibdev *dev) if (dev->pma_sample_status == IB_PMA_SAMPLE_STATUS_STARTED && --dev->pma_sample_start == 0) { dev->pma_sample_status = IB_PMA_SAMPLE_STATUS_RUNNING; - ipath_layer_snapshot_counters(dev->dd, &dev->ipath_sword, - &dev->ipath_rword, - &dev->ipath_spkts, - &dev->ipath_rpkts, - &dev->ipath_xmit_wait); + ipath_snapshot_counters(dev->dd, &dev->ipath_sword, + &dev->ipath_rword, + &dev->ipath_spkts, + &dev->ipath_rpkts, + &dev->ipath_xmit_wait); } if (dev->pma_sample_status == IB_PMA_SAMPLE_STATUS_RUNNING) { if (dev->pma_sample_interval == 0) { u64 ta, tb, tc, td, te; dev->pma_sample_status = IB_PMA_SAMPLE_STATUS_DONE; - ipath_layer_snapshot_counters(dev->dd, &ta, &tb, - &tc, &td, &te); + ipath_snapshot_counters(dev->dd, &ta, &tb, + &tc, &td, &te); dev->ipath_sword = ta - dev->ipath_sword; dev->ipath_rword = tb - dev->ipath_rword; @@ -553,6 +557,362 @@ void ipath_ib_timer(struct ipath_ibdev *dev) } } +static void update_sge(struct ipath_sge_state *ss, u32 length) +{ + struct ipath_sge *sge = &ss->sge; + + sge->vaddr += length; + sge->length -= length; + sge->sge_length -= length; + if (sge->sge_length == 0) { + if (--ss->num_sge) + *sge = *ss->sg_list++; + } else if (sge->length == 0 && sge->mr != NULL) { + if (++sge->n >= IPATH_SEGSZ) { + if (++sge->m >= sge->mr->mapsz) + return; + sge->n = 0; + } + sge->vaddr = sge->mr->map[sge->m]->segs[sge->n].vaddr; + sge->length = sge->mr->map[sge->m]->segs[sge->n].length; + } +} + +#ifdef __LITTLE_ENDIAN +static inline u32 get_upper_bits(u32 data, u32 shift) +{ + return data >> shift; +} + +static inline u32 set_upper_bits(u32 data, u32 shift) +{ + return data << shift; +} + +static inline u32 clear_upper_bytes(u32 data, u32 n, u32 off) +{ + data <<= ((sizeof(u32) - n) * BITS_PER_BYTE); + data >>= ((sizeof(u32) - n - off) * BITS_PER_BYTE); + return data; +} +#else +static inline u32 get_upper_bits(u32 data, u32 shift) +{ + return data << shift; +} + +static inline u32 set_upper_bits(u32 data, u32 shift) +{ + return data >> shift; +} + +static inline u32 clear_upper_bytes(u32 data, u32 n, u32 off) +{ + data >>= ((sizeof(u32) - n) * BITS_PER_BYTE); + data <<= ((sizeof(u32) - n - off) * BITS_PER_BYTE); + return data; +} +#endif + +static void copy_io(u32 __iomem *piobuf, struct ipath_sge_state *ss, + u32 length) +{ + u32 extra = 0; + u32 data = 0; + u32 last; + + while (1) { + u32 len = ss->sge.length; + u32 off; + + BUG_ON(len == 0); + if (len > length) + len = length; + if (len > ss->sge.sge_length) + len = ss->sge.sge_length; + /* If the source address is not aligned, try to align it. */ + off = (unsigned long)ss->sge.vaddr & (sizeof(u32) - 1); + if (off) { + u32 *addr = (u32 *)((unsigned long)ss->sge.vaddr & + ~(sizeof(u32) - 1)); + u32 v = get_upper_bits(*addr, off * BITS_PER_BYTE); + u32 y; + + y = sizeof(u32) - off; + if (len > y) + len = y; + if (len + extra >= sizeof(u32)) { + data |= set_upper_bits(v, extra * + BITS_PER_BYTE); + len = sizeof(u32) - extra; + if (len == length) { + last = data; + break; + } + __raw_writel(data, piobuf); + piobuf++; + extra = 0; + data = 0; + } else { + /* Clear unused upper bytes */ + data |= clear_upper_bytes(v, len, extra); + if (len == length) { + last = data; + break; + } + extra += len; + } + } else if (extra) { + /* Source address is aligned. */ + u32 *addr = (u32 *) ss->sge.vaddr; + int shift = extra * BITS_PER_BYTE; + int ushift = 32 - shift; + u32 l = len; + + while (l >= sizeof(u32)) { + u32 v = *addr; + + data |= set_upper_bits(v, shift); + __raw_writel(data, piobuf); + data = get_upper_bits(v, ushift); + piobuf++; + addr++; + l -= sizeof(u32); + } + /* + * We still have 'extra' number of bytes leftover. + */ + if (l) { + u32 v = *addr; + + if (l + extra >= sizeof(u32)) { + data |= set_upper_bits(v, shift); + len -= l + extra - sizeof(u32); + if (len == length) { + last = data; + break; + } + __raw_writel(data, piobuf); + piobuf++; + extra = 0; + data = 0; + } else { + /* Clear unused upper bytes */ + data |= clear_upper_bytes(v, l, + extra); + if (len == length) { + last = data; + break; + } + extra += l; + } + } else if (len == length) { + last = data; + break; + } + } else if (len == length) { + u32 w; + + /* + * Need to round up for the last dword in the + * packet. + */ + w = (len + 3) >> 2; + __iowrite32_copy(piobuf, ss->sge.vaddr, w - 1); + piobuf += w - 1; + last = ((u32 *) ss->sge.vaddr)[w - 1]; + break; + } else { + u32 w = len >> 2; + + __iowrite32_copy(piobuf, ss->sge.vaddr, w); + piobuf += w; + + extra = len & (sizeof(u32) - 1); + if (extra) { + u32 v = ((u32 *) ss->sge.vaddr)[w]; + + /* Clear unused upper bytes */ + data = clear_upper_bytes(v, extra, 0); + } + } + update_sge(ss, len); + length -= len; + } + /* Update address before sending packet. */ + update_sge(ss, length); + /* must flush early everything before trigger word */ + ipath_flush_wc(); + __raw_writel(last, piobuf); + /* be sure trigger word is written */ + ipath_flush_wc(); +} + +/** + * ipath_verbs_send - send a packet + * @dd: the infinipath device + * @hdrwords: the number of words in the header + * @hdr: the packet header + * @len: the length of the packet in bytes + * @ss: the SGE to send + */ +int ipath_verbs_send(struct ipath_devdata *dd, u32 hdrwords, + u32 *hdr, u32 len, struct ipath_sge_state *ss) +{ + u32 __iomem *piobuf; + u32 plen; + int ret; + + /* +1 is for the qword padding of pbc */ + plen = hdrwords + ((len + 3) >> 2) + 1; + if (unlikely((plen << 2) > dd->ipath_ibmaxlen)) { + ipath_dbg("packet len 0x%x too long, failing\n", plen); + ret = -EINVAL; + goto bail; + } + + /* Get a PIO buffer to use. */ + piobuf = ipath_getpiobuf(dd, NULL); + if (unlikely(piobuf == NULL)) { + ret = -EBUSY; + goto bail; + } + + /* + * Write len to control qword, no flags. + * We have to flush after the PBC for correctness on some cpus + * or WC buffer can be written out of order. + */ + writeq(plen, piobuf); + ipath_flush_wc(); + piobuf += 2; + if (len == 0) { + /* + * If there is just the header portion, must flush before + * writing last word of header for correctness, and after + * the last header word (trigger word). + */ + __iowrite32_copy(piobuf, hdr, hdrwords - 1); + ipath_flush_wc(); + __raw_writel(hdr[hdrwords - 1], piobuf + hdrwords - 1); + ipath_flush_wc(); + ret = 0; + goto bail; + } + + __iowrite32_copy(piobuf, hdr, hdrwords); + piobuf += hdrwords; + + /* The common case is aligned and contained in one segment. */ + if (likely(ss->num_sge == 1 && len <= ss->sge.length && + !((unsigned long)ss->sge.vaddr & (sizeof(u32) - 1)))) { + u32 w; + u32 *addr = (u32 *) ss->sge.vaddr; + + /* Update address before sending packet. */ + update_sge(ss, len); + /* Need to round up for the last dword in the packet. */ + w = (len + 3) >> 2; + __iowrite32_copy(piobuf, addr, w - 1); + /* must flush early everything before trigger word */ + ipath_flush_wc(); + __raw_writel(addr[w - 1], piobuf + w - 1); + /* be sure trigger word is written */ + ipath_flush_wc(); + ret = 0; + goto bail; + } + copy_io(piobuf, ss, len); + ret = 0; + +bail: + return ret; +} + +int ipath_snapshot_counters(struct ipath_devdata *dd, u64 *swords, + u64 *rwords, u64 *spkts, u64 *rpkts, + u64 *xmit_wait) +{ + int ret; + + if (!(dd->ipath_flags & IPATH_INITTED)) { + /* no hardware, freeze, etc. */ + ipath_dbg("unit %u not usable\n", dd->ipath_unit); + ret = -EINVAL; + goto bail; + } + *swords = ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordsendcnt); + *rwords = ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordrcvcnt); + *spkts = ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktsendcnt); + *rpkts = ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktrcvcnt); + *xmit_wait = ipath_snap_cntr(dd, dd->ipath_cregs->cr_sendstallcnt); + + ret = 0; + +bail: + return ret; +} + +/** + * ipath_get_counters - get various chip counters + * @dd: the infinipath device + * @cntrs: counters are placed here + * + * Return the counters needed by recv_pma_get_portcounters(). + */ +int ipath_get_counters(struct ipath_devdata *dd, + struct ipath_verbs_counters *cntrs) +{ + int ret; + + if (!(dd->ipath_flags & IPATH_INITTED)) { + /* no hardware, freeze, etc. */ + ipath_dbg("unit %u not usable\n", dd->ipath_unit); + ret = -EINVAL; + goto bail; + } + cntrs->symbol_error_counter = + ipath_snap_cntr(dd, dd->ipath_cregs->cr_ibsymbolerrcnt); + cntrs->link_error_recovery_counter = + ipath_snap_cntr(dd, dd->ipath_cregs->cr_iblinkerrrecovcnt); + /* + * The link downed counter counts when the other side downs the + * connection. We add in the number of times we downed the link + * due to local link integrity errors to compensate. + */ + cntrs->link_downed_counter = + ipath_snap_cntr(dd, dd->ipath_cregs->cr_iblinkdowncnt); + cntrs->port_rcv_errors = + ipath_snap_cntr(dd, dd->ipath_cregs->cr_rxdroppktcnt) + + ipath_snap_cntr(dd, dd->ipath_cregs->cr_rcvovflcnt) + + ipath_snap_cntr(dd, dd->ipath_cregs->cr_portovflcnt) + + ipath_snap_cntr(dd, dd->ipath_cregs->cr_err_rlencnt) + + ipath_snap_cntr(dd, dd->ipath_cregs->cr_invalidrlencnt) + + ipath_snap_cntr(dd, dd->ipath_cregs->cr_erricrccnt) + + ipath_snap_cntr(dd, dd->ipath_cregs->cr_errvcrccnt) + + ipath_snap_cntr(dd, dd->ipath_cregs->cr_errlpcrccnt) + + ipath_snap_cntr(dd, dd->ipath_cregs->cr_badformatcnt); + cntrs->port_rcv_remphys_errors = + ipath_snap_cntr(dd, dd->ipath_cregs->cr_rcvebpcnt); + cntrs->port_xmit_discards = + ipath_snap_cntr(dd, dd->ipath_cregs->cr_unsupvlcnt); + cntrs->port_xmit_data = + ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordsendcnt); + cntrs->port_rcv_data = + ipath_snap_cntr(dd, dd->ipath_cregs->cr_wordrcvcnt); + cntrs->port_xmit_packets = + ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktsendcnt); + cntrs->port_rcv_packets = + ipath_snap_cntr(dd, dd->ipath_cregs->cr_pktrcvcnt); + cntrs->local_link_integrity_errors = dd->ipath_lli_errors; + cntrs->excessive_buffer_overrun_errors = 0; /* XXX */ + + ret = 0; + +bail: + return ret; +} + /** * ipath_ib_piobufavail - callback when a PIO buffer is available * @arg: the device pointer @@ -595,9 +955,9 @@ static int ipath_query_device(struct ib_device *ibdev, IB_DEVICE_BAD_QKEY_CNTR | IB_DEVICE_SHUTDOWN_PORT | IB_DEVICE_SYS_IMAGE_GUID; props->page_size_cap = PAGE_SIZE; - props->vendor_id = ipath_layer_get_vendorid(dev->dd); - props->vendor_part_id = ipath_layer_get_deviceid(dev->dd); - props->hw_ver = ipath_layer_get_pcirev(dev->dd); + props->vendor_id = dev->dd->ipath_vendorid; + props->vendor_part_id = dev->dd->ipath_deviceid; + props->hw_ver = dev->dd->ipath_pcirev; props->sys_image_guid = dev->sys_image_guid; @@ -618,7 +978,7 @@ static int ipath_query_device(struct ib_device *ibdev, props->max_srq_sge = ib_ipath_max_srq_sges; /* props->local_ca_ack_delay */ props->atomic_cap = IB_ATOMIC_HCA; - props->max_pkeys = ipath_layer_get_npkeys(dev->dd); + props->max_pkeys = ipath_get_npkeys(dev->dd); props->max_mcast_grp = ib_ipath_max_mcast_grps; props->max_mcast_qp_attach = ib_ipath_max_mcast_qp_attached; props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * @@ -643,12 +1003,17 @@ const u8 ipath_cvt_physportstate[16] = { [INFINIPATH_IBCS_LT_STATE_RECOVERIDLE] = 6, }; +u32 ipath_get_cr_errpkey(struct ipath_devdata *dd) +{ + return ipath_read_creg32(dd, dd->ipath_cregs->cr_errpkey); +} + static int ipath_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props) { struct ipath_ibdev *dev = to_idev(ibdev); enum ib_mtu mtu; - u16 lid = ipath_layer_get_lid(dev->dd); + u16 lid = dev->dd->ipath_lid; u64 ibcstat; memset(props, 0, sizeof(*props)); @@ -656,16 +1021,16 @@ static int ipath_query_port(struct ib_device *ibdev, props->lmc = dev->mkeyprot_resv_lmc & 7; props->sm_lid = dev->sm_lid; props->sm_sl = dev->sm_sl; - ibcstat = ipath_layer_get_lastibcstat(dev->dd); + ibcstat = dev->dd->ipath_lastibcstat; props->state = ((ibcstat >> 4) & 0x3) + 1; /* See phys_state_show() */ props->phys_state = ipath_cvt_physportstate[ - ipath_layer_get_lastibcstat(dev->dd) & 0xf]; + dev->dd->ipath_lastibcstat & 0xf]; props->port_cap_flags = dev->port_cap_flags; props->gid_tbl_len = 1; props->max_msg_sz = 0x80000000; - props->pkey_tbl_len = ipath_layer_get_npkeys(dev->dd); - props->bad_pkey_cntr = ipath_layer_get_cr_errpkey(dev->dd) - + props->pkey_tbl_len = ipath_get_npkeys(dev->dd); + props->bad_pkey_cntr = ipath_get_cr_errpkey(dev->dd) - dev->z_pkey_violations; props->qkey_viol_cntr = dev->qkey_violations; props->active_width = IB_WIDTH_4X; @@ -675,7 +1040,7 @@ static int ipath_query_port(struct ib_device *ibdev, props->init_type_reply = 0; props->max_mtu = IB_MTU_4096; - switch (ipath_layer_get_ibmtu(dev->dd)) { + switch (dev->dd->ipath_ibmtu) { case 4096: mtu = IB_MTU_4096; break; @@ -734,7 +1099,7 @@ static int ipath_modify_port(struct ib_device *ibdev, dev->port_cap_flags |= props->set_port_cap_mask; dev->port_cap_flags &= ~props->clr_port_cap_mask; if (port_modify_mask & IB_PORT_SHUTDOWN) - ipath_layer_set_linkstate(dev->dd, IPATH_IB_LINKDOWN); + ipath_set_linkstate(dev->dd, IPATH_IB_LINKDOWN); if (port_modify_mask & IB_PORT_RESET_QKEY_CNTR) dev->qkey_violations = 0; return 0; @@ -751,7 +1116,7 @@ static int ipath_query_gid(struct ib_device *ibdev, u8 port, goto bail; } gid->global.subnet_prefix = dev->gid_prefix; - gid->global.interface_id = ipath_layer_get_guid(dev->dd); + gid->global.interface_id = dev->dd->ipath_guid; ret = 0; @@ -902,25 +1267,50 @@ static int ipath_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr) return 0; } +/** + * ipath_get_npkeys - return the size of the PKEY table for port 0 + * @dd: the infinipath device + */ +unsigned ipath_get_npkeys(struct ipath_devdata *dd) +{ + return ARRAY_SIZE(dd->ipath_pd[0]->port_pkeys); +} + +/** + * ipath_get_pkey - return the indexed PKEY from the port 0 PKEY table + * @dd: the infinipath device + * @index: the PKEY index + */ +unsigned ipath_get_pkey(struct ipath_devdata *dd, unsigned index) +{ + unsigned ret; + + if (index >= ARRAY_SIZE(dd->ipath_pd[0]->port_pkeys)) + ret = 0; + else + ret = dd->ipath_pd[0]->port_pkeys[index]; + + return ret; +} + static int ipath_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey) { struct ipath_ibdev *dev = to_idev(ibdev); int ret; - if (index >= ipath_layer_get_npkeys(dev->dd)) { + if (index >= ipath_get_npkeys(dev->dd)) { ret = -EINVAL; goto bail; } - *pkey = ipath_layer_get_pkey(dev->dd, index); + *pkey = ipath_get_pkey(dev->dd, index); ret = 0; bail: return ret; } - /** * ipath_alloc_ucontext - allocate a ucontest * @ibdev: the infiniband device @@ -953,6 +1343,63 @@ static int ipath_dealloc_ucontext(struct ib_ucontext *context) static int ipath_verbs_register_sysfs(struct ib_device *dev); +static void __verbs_timer(unsigned long arg) +{ + struct ipath_devdata *dd = (struct ipath_devdata *) arg; + + /* + * If port 0 receive packet interrupts are not available, or + * can be missed, poll the receive queue + */ + if (dd->ipath_flags & IPATH_POLL_RX_INTR) + ipath_kreceive(dd); + + /* Handle verbs layer timeouts. */ + ipath_ib_timer(dd->verbs_dev); + + mod_timer(&dd->verbs_timer, jiffies + 1); +} + +static int enable_timer(struct ipath_devdata *dd) +{ + /* + * Early chips had a design flaw where the chip and kernel idea + * of the tail register don't always agree, and therefore we won't + * get an interrupt on the next packet received. + * If the board supports per packet receive interrupts, use it. + * Otherwise, the timer function periodically checks for packets + * to cover this case. + * Either way, the timer is needed for verbs layer related + * processing. + */ + if (dd->ipath_flags & IPATH_GPIO_INTR) { + ipath_write_kreg(dd, dd->ipath_kregs->kr_debugportselect, + 0x2074076542310ULL); + /* Enable GPIO bit 2 interrupt */ + ipath_write_kreg(dd, dd->ipath_kregs->kr_gpio_mask, + (u64) (1 << 2)); + } + + init_timer(&dd->verbs_timer); + dd->verbs_timer.function = __verbs_timer; + dd->verbs_timer.data = (unsigned long)dd; + dd->verbs_timer.expires = jiffies + 1; + add_timer(&dd->verbs_timer); + + return 0; +} + +static int disable_timer(struct ipath_devdata *dd) +{ + /* Disable GPIO bit 2 interrupt */ + if (dd->ipath_flags & IPATH_GPIO_INTR) + ipath_write_kreg(dd, dd->ipath_kregs->kr_gpio_mask, 0); + + del_timer_sync(&dd->verbs_timer); + + return 0; +} + /** * ipath_register_ib_device - register our device with the infiniband core * @dd: the device data structure @@ -960,7 +1407,7 @@ static int ipath_verbs_register_sysfs(struct ib_device *dev); */ int ipath_register_ib_device(struct ipath_devdata *dd) { - struct ipath_layer_counters cntrs; + struct ipath_verbs_counters cntrs; struct ipath_ibdev *idev; struct ib_device *dev; int ret; @@ -1020,7 +1467,7 @@ int ipath_register_ib_device(struct ipath_devdata *dd) idev->link_width_enabled = 3; /* 1x or 4x */ /* Snapshot current HW counters to "clear" them. */ - ipath_layer_get_counters(dd, &cntrs); + ipath_get_counters(dd, &cntrs); idev->z_symbol_error_counter = cntrs.symbol_error_counter; idev->z_link_error_recovery_counter = cntrs.link_error_recovery_counter; @@ -1044,14 +1491,14 @@ int ipath_register_ib_device(struct ipath_devdata *dd) * device types in the system, we can't be sure this is unique. */ if (!sys_image_guid) - sys_image_guid = ipath_layer_get_guid(dd); + sys_image_guid = dd->ipath_guid; idev->sys_image_guid = sys_image_guid; idev->ib_unit = dd->ipath_unit; idev->dd = dd; strlcpy(dev->name, "ipath%d", IB_DEVICE_NAME_MAX); dev->owner = THIS_MODULE; - dev->node_guid = ipath_layer_get_guid(dd); + dev->node_guid = dd->ipath_guid; dev->uverbs_abi_ver = IPATH_UVERBS_ABI_VERSION; dev->uverbs_cmd_mask = (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | @@ -1085,7 +1532,7 @@ int ipath_register_ib_device(struct ipath_devdata *dd) (1ull << IB_USER_VERBS_CMD_POST_SRQ_RECV); dev->node_type = IB_NODE_CA; dev->phys_port_cnt = 1; - dev->dma_device = ipath_layer_get_device(dd); + dev->dma_device = &dd->pcidev->dev; dev->class_dev.dev = dev->dma_device; dev->query_device = ipath_query_device; dev->modify_device = ipath_modify_device; @@ -1139,7 +1586,7 @@ int ipath_register_ib_device(struct ipath_devdata *dd) if (ipath_verbs_register_sysfs(dev)) goto err_class; - ipath_layer_enable_timer(dd); + enable_timer(dd); goto bail; @@ -1164,7 +1611,7 @@ void ipath_unregister_ib_device(struct ipath_ibdev *dev) { struct ib_device *ibdev = &dev->ibdev; - ipath_layer_disable_timer(dev->dd); + disable_timer(dev->dd); ib_unregister_device(ibdev); @@ -1197,7 +1644,7 @@ static ssize_t show_rev(struct class_device *cdev, char *buf) struct ipath_ibdev *dev = container_of(cdev, struct ipath_ibdev, ibdev.class_dev); - return sprintf(buf, "%x\n", ipath_layer_get_pcirev(dev->dd)); + return sprintf(buf, "%x\n", dev->dd->ipath_pcirev); } static ssize_t show_hca(struct class_device *cdev, char *buf) @@ -1206,7 +1653,7 @@ static ssize_t show_hca(struct class_device *cdev, char *buf) container_of(cdev, struct ipath_ibdev, ibdev.class_dev); int ret; - ret = ipath_layer_get_boardname(dev->dd, buf, 128); + ret = dev->dd->ipath_f_get_boardname(dev->dd, buf, 128); if (ret < 0) goto bail; strcat(buf, "\n"); diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h index d6faa4ba606..00f4cecc258 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.h +++ b/drivers/infiniband/hw/ipath/ipath_verbs.h @@ -153,19 +153,6 @@ struct ipath_mcast { int n_attached; }; -/* Memory region */ -struct ipath_mr { - struct ib_mr ibmr; - struct ipath_mregion mr; /* must be last */ -}; - -/* Fast memory region */ -struct ipath_fmr { - struct ib_fmr ibfmr; - u8 page_shift; - struct ipath_mregion mr; /* must be last */ -}; - /* Protection domain */ struct ipath_pd { struct ib_pd ibpd; @@ -216,6 +203,54 @@ struct ipath_cq { struct ipath_mmap_info *ip; }; +/* + * A segment is a linear region of low physical memory. + * XXX Maybe we should use phys addr here and kmap()/kunmap(). + * Used by the verbs layer. + */ +struct ipath_seg { + void *vaddr; + size_t length; +}; + +/* The number of ipath_segs that fit in a page. */ +#define IPATH_SEGSZ (PAGE_SIZE / sizeof (struct ipath_seg)) + +struct ipath_segarray { + struct ipath_seg segs[IPATH_SEGSZ]; +}; + +struct ipath_mregion { + u64 user_base; /* User's address for this region */ + u64 iova; /* IB start address of this region */ + size_t length; + u32 lkey; + u32 offset; /* offset (bytes) to start of region */ + int access_flags; + u32 max_segs; /* number of ipath_segs in all the arrays */ + u32 mapsz; /* size of the map array */ + struct ipath_segarray *map[0]; /* the segments */ +}; + +/* + * These keep track of the copy progress within a memory region. + * Used by the verbs layer. + */ +struct ipath_sge { + struct ipath_mregion *mr; + void *vaddr; /* current pointer into the segment */ + u32 sge_length; /* length of the SGE */ + u32 length; /* remaining length of the segment */ + u16 m; /* current index: mr->map[m] */ + u16 n; /* current index: mr->map[m]->segs[n] */ +}; + +/* Memory region */ +struct ipath_mr { + struct ib_mr ibmr; + struct ipath_mregion mr; /* must be last */ +}; + /* * Send work request queue entry. * The size of the sg_list is determined when the QP is created and stored @@ -270,6 +305,12 @@ struct ipath_srq { u32 limit; }; +struct ipath_sge_state { + struct ipath_sge *sg_list; /* next SGE to be used if any */ + struct ipath_sge sge; /* progress state for the current SGE */ + u8 num_sge; +}; + /* * Variables prefixed with s_ are for the requester (sender). * Variables prefixed with r_ are for the responder (receiver). @@ -500,8 +541,19 @@ struct ipath_ibdev { struct ipath_opcode_stats opstats[128]; }; -struct ipath_ucontext { - struct ib_ucontext ibucontext; +struct ipath_verbs_counters { + u64 symbol_error_counter; + u64 link_error_recovery_counter; + u64 link_downed_counter; + u64 port_rcv_errors; + u64 port_rcv_remphys_errors; + u64 port_xmit_discards; + u64 port_xmit_data; + u64 port_rcv_data; + u64 port_xmit_packets; + u64 port_rcv_packets; + u32 local_link_integrity_errors; + u32 excessive_buffer_overrun_errors; }; static inline struct ipath_mr *to_imr(struct ib_mr *ibmr) @@ -509,11 +561,6 @@ static inline struct ipath_mr *to_imr(struct ib_mr *ibmr) return container_of(ibmr, struct ipath_mr, ibmr); } -static inline struct ipath_fmr *to_ifmr(struct ib_fmr *ibfmr) -{ - return container_of(ibfmr, struct ipath_fmr, ibfmr); -} - static inline struct ipath_pd *to_ipd(struct ib_pd *ibpd) { return container_of(ibpd, struct ipath_pd, ibpd); @@ -551,12 +598,6 @@ int ipath_process_mad(struct ib_device *ibdev, struct ib_grh *in_grh, struct ib_mad *in_mad, struct ib_mad *out_mad); -static inline struct ipath_ucontext *to_iucontext(struct ib_ucontext - *ibucontext) -{ - return container_of(ibucontext, struct ipath_ucontext, ibucontext); -} - /* * Compare the lower 24 bits of the two values. * Returns an integer <, ==, or > than zero. @@ -568,6 +609,13 @@ static inline int ipath_cmp24(u32 a, u32 b) struct ipath_mcast *ipath_mcast_find(union ib_gid *mgid); +int ipath_snapshot_counters(struct ipath_devdata *dd, u64 *swords, + u64 *rwords, u64 *spkts, u64 *rpkts, + u64 *xmit_wait); + +int ipath_get_counters(struct ipath_devdata *dd, + struct ipath_verbs_counters *cntrs); + int ipath_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid); int ipath_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid); @@ -598,6 +646,9 @@ void ipath_sqerror_qp(struct ipath_qp *qp, struct ib_wc *wc); void ipath_get_credit(struct ipath_qp *qp, u32 aeth); +int ipath_verbs_send(struct ipath_devdata *dd, u32 hdrwords, + u32 *hdr, u32 len, struct ipath_sge_state *ss); + void ipath_cq_enter(struct ipath_cq *cq, struct ib_wc *entry, int sig); int ipath_rkey_ok(struct ipath_ibdev *dev, struct ipath_sge_state *ss, @@ -721,6 +772,12 @@ int ipath_ib_piobufavail(struct ipath_ibdev *); void ipath_ib_timer(struct ipath_ibdev *); +unsigned ipath_get_npkeys(struct ipath_devdata *); + +u32 ipath_get_cr_errpkey(struct ipath_devdata *); + +unsigned ipath_get_pkey(struct ipath_devdata *, unsigned); + extern const enum ib_wc_opcode ib_ipath_wc_opcode[]; extern const u8 ipath_cvt_physportstate[]; -- cgit v1.2.3-70-g09d2 From b55f4f06c834a67f949a5219c5f97ffafa240989 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:33 -0700 Subject: IB/ipath: simplify debugging code after ipath_core and ib_ipath merger Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_driver.c | 4 +- drivers/infiniband/hw/ipath/ipath_kernel.h | 4 +- drivers/infiniband/hw/ipath/ipath_keys.c | 3 +- drivers/infiniband/hw/ipath/ipath_qp.c | 10 +-- drivers/infiniband/hw/ipath/ipath_sysfs.c | 2 +- drivers/infiniband/hw/ipath/ipath_verbs.c | 19 ++--- drivers/infiniband/hw/ipath/ipath_verbs.h | 1 - drivers/infiniband/hw/ipath/verbs_debug.h | 108 ----------------------------- 8 files changed, 17 insertions(+), 134 deletions(-) delete mode 100644 drivers/infiniband/hw/ipath/verbs_debug.h (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index 958cc9b33c8..e6261bb9a8a 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -58,7 +58,7 @@ const char *ipath_get_unit_name(int unit) * The size has to be longer than this string, so we can append * board/chip information to it in the init code. */ -const char ipath_core_version[] = IPATH_IDSTR "\n"; +const char ib_ipath_version[] = IPATH_IDSTR "\n"; static struct idr unit_table; DEFINE_SPINLOCK(ipath_devs_lock); @@ -1847,7 +1847,7 @@ static int __init infinipath_init(void) { int ret; - ipath_dbg(KERN_INFO DRIVER_LOAD_MSG "%s", ipath_core_version); + ipath_dbg(KERN_INFO DRIVER_LOAD_MSG "%s", ib_ipath_version); /* * These must be called before the driver is registered with diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index 999249b7f27..af342314b36 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -785,7 +785,7 @@ static inline u32 ipath_read_creg32(const struct ipath_devdata *dd, struct device_driver; -extern const char ipath_core_version[]; +extern const char ib_ipath_version[]; int ipath_driver_create_group(struct device_driver *); void ipath_driver_remove_group(struct device_driver *); @@ -815,7 +815,7 @@ const char *ipath_get_unit_name(int unit); extern struct mutex ipath_mutex; -#define IPATH_DRV_NAME "ipath_core" +#define IPATH_DRV_NAME "ib_ipath" #define IPATH_MAJOR 233 #define IPATH_USER_MINOR_BASE 0 #define IPATH_SMA_MINOR 128 diff --git a/drivers/infiniband/hw/ipath/ipath_keys.c b/drivers/infiniband/hw/ipath/ipath_keys.c index a5ca279370a..ba1b93226ca 100644 --- a/drivers/infiniband/hw/ipath/ipath_keys.c +++ b/drivers/infiniband/hw/ipath/ipath_keys.c @@ -34,6 +34,7 @@ #include #include "ipath_verbs.h" +#include "ipath_kernel.h" /** * ipath_alloc_lkey - allocate an lkey @@ -60,7 +61,7 @@ int ipath_alloc_lkey(struct ipath_lkey_table *rkt, struct ipath_mregion *mr) r = (r + 1) & (rkt->max - 1); if (r == n) { spin_unlock_irqrestore(&rkt->lock, flags); - _VERBS_INFO("LKEY table full\n"); + ipath_dbg(KERN_INFO "LKEY table full\n"); ret = 0; goto bail; } diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index 9228d59b59d..b86858e70f2 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -274,7 +274,7 @@ void ipath_free_all_qps(struct ipath_qp_table *qpt) free_qpn(qpt, qp->ibqp.qp_num); if (!atomic_dec_and_test(&qp->refcount) || !ipath_destroy_qp(&qp->ibqp)) - _VERBS_INFO("QP memory leak!\n"); + ipath_dbg(KERN_INFO "QP memory leak!\n"); qp = nqp; } } @@ -362,8 +362,8 @@ void ipath_error_qp(struct ipath_qp *qp) struct ipath_ibdev *dev = to_idev(qp->ibqp.device); struct ib_wc wc; - _VERBS_INFO("QP%d/%d in error state\n", - qp->ibqp.qp_num, qp->remote_qpn); + ipath_dbg(KERN_INFO "QP%d/%d in error state\n", + qp->ibqp.qp_num, qp->remote_qpn); spin_lock(&dev->pending_lock); /* XXX What if its already removed by the timeout code? */ @@ -945,8 +945,8 @@ void ipath_sqerror_qp(struct ipath_qp *qp, struct ib_wc *wc) struct ipath_ibdev *dev = to_idev(qp->ibqp.device); struct ipath_swqe *wqe = get_swqe_ptr(qp, qp->s_last); - _VERBS_INFO("Send queue error on QP%d/%d: err: %d\n", - qp->ibqp.qp_num, qp->remote_qpn, wc->status); + ipath_dbg(KERN_INFO "Send queue error on QP%d/%d: err: %d\n", + qp->ibqp.qp_num, qp->remote_qpn, wc->status); spin_lock(&dev->pending_lock); /* XXX What if its already removed by the timeout code? */ diff --git a/drivers/infiniband/hw/ipath/ipath_sysfs.c b/drivers/infiniband/hw/ipath/ipath_sysfs.c index 7396a63840d..56f12202ff4 100644 --- a/drivers/infiniband/hw/ipath/ipath_sysfs.c +++ b/drivers/infiniband/hw/ipath/ipath_sysfs.c @@ -75,7 +75,7 @@ bail: static ssize_t show_version(struct device_driver *dev, char *buf) { /* The string printed here is already newline-terminated. */ - return scnprintf(buf, PAGE_SIZE, "%s", ipath_core_version); + return scnprintf(buf, PAGE_SIZE, "%s", ib_ipath_version); } static ssize_t show_num_units(struct device_driver *dev, char *buf) diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 3c47620e988..1776330914e 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -50,10 +50,6 @@ module_param_named(lkey_table_size, ib_ipath_lkey_table_size, uint, MODULE_PARM_DESC(lkey_table_size, "LKEY table size in bits (2^n, 1 <= n <= 23)"); -unsigned int ib_ipath_debug; /* debug mask */ -module_param_named(debug, ib_ipath_debug, uint, S_IWUSR | S_IRUGO); -MODULE_PARM_DESC(debug, "Verbs debug mask"); - static unsigned int ib_ipath_max_pds = 0xFFFF; module_param_named(max_pds, ib_ipath_max_pds, uint, S_IWUSR | S_IRUGO); MODULE_PARM_DESC(max_pds, @@ -1598,8 +1594,7 @@ err_lk: kfree(idev->qp_table.table); err_qp: ib_dealloc_device(dev); - _VERBS_ERROR("ib_ipath%d cannot register verbs (%d)!\n", - dd->ipath_unit, -ret); + ipath_dev_err(dd, "cannot register verbs: %d!\n", -ret); idev = NULL; bail: @@ -1618,17 +1613,13 @@ void ipath_unregister_ib_device(struct ipath_ibdev *dev) if (!list_empty(&dev->pending[0]) || !list_empty(&dev->pending[1]) || !list_empty(&dev->pending[2])) - _VERBS_ERROR("ipath%d pending list not empty!\n", - dev->ib_unit); + ipath_dev_err(dev->dd, "pending list not empty!\n"); if (!list_empty(&dev->piowait)) - _VERBS_ERROR("ipath%d piowait list not empty!\n", - dev->ib_unit); + ipath_dev_err(dev->dd, "piowait list not empty!\n"); if (!list_empty(&dev->rnrwait)) - _VERBS_ERROR("ipath%d rnrwait list not empty!\n", - dev->ib_unit); + ipath_dev_err(dev->dd, "rnrwait list not empty!\n"); if (!ipath_mcast_tree_empty()) - _VERBS_ERROR("ipath%d multicast table memory leak!\n", - dev->ib_unit); + ipath_dev_err(dev->dd, "multicast table memory leak!\n"); /* * Note that ipath_unregister_ib_device() can be called before all * the QPs are destroyed! diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h index 00f4cecc258..9cc0dbfe860 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.h +++ b/drivers/infiniband/hw/ipath/ipath_verbs.h @@ -42,7 +42,6 @@ #include #include "ipath_layer.h" -#include "verbs_debug.h" #define QPN_MAX (1 << 24) #define QPNMAP_ENTRIES (QPN_MAX / PAGE_SIZE / BITS_PER_BYTE) diff --git a/drivers/infiniband/hw/ipath/verbs_debug.h b/drivers/infiniband/hw/ipath/verbs_debug.h deleted file mode 100644 index 6186676f2a1..00000000000 --- a/drivers/infiniband/hw/ipath/verbs_debug.h +++ /dev/null @@ -1,108 +0,0 @@ -/* - * Copyright (c) 2006 QLogic, Inc. All rights reserved. - * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. - * - * This software is available to you under a choice of one of two - * licenses. You may choose to be licensed under the terms of the GNU - * General Public License (GPL) Version 2, available from the file - * COPYING in the main directory of this source tree, or the - * OpenIB.org BSD license below: - * - * Redistribution and use in source and binary forms, with or - * without modification, are permitted provided that the following - * conditions are met: - * - * - Redistributions of source code must retain the above - * copyright notice, this list of conditions and the following - * disclaimer. - * - * - Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials - * provided with the distribution. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -#ifndef _VERBS_DEBUG_H -#define _VERBS_DEBUG_H - -/* - * This file contains tracing code for the ib_ipath kernel module. - */ -#ifndef _VERBS_DEBUGGING /* tracing enabled or not */ -#define _VERBS_DEBUGGING 1 -#endif - -extern unsigned ib_ipath_debug; - -#define _VERBS_ERROR(fmt,...) \ - do { \ - printk(KERN_ERR "%s: " fmt, "ib_ipath", ##__VA_ARGS__); \ - } while(0) - -#define _VERBS_UNIT_ERROR(unit,fmt,...) \ - do { \ - printk(KERN_ERR "%s: " fmt, "ib_ipath", ##__VA_ARGS__); \ - } while(0) - -#if _VERBS_DEBUGGING - -/* - * Mask values for debugging. The scheme allows us to compile out any - * of the debug tracing stuff, and if compiled in, to enable or - * disable dynamically. - * This can be set at modprobe time also: - * modprobe ib_path ib_ipath_debug=3 - */ - -#define __VERBS_INFO 0x1 /* generic low verbosity stuff */ -#define __VERBS_DBG 0x2 /* generic debug */ -#define __VERBS_VDBG 0x4 /* verbose debug */ -#define __VERBS_SMADBG 0x8000 /* sma packet debug */ - -#define _VERBS_INFO(fmt,...) \ - do { \ - if (unlikely(ib_ipath_debug&__VERBS_INFO)) \ - printk(KERN_INFO "%s: " fmt,"ib_ipath", \ - ##__VA_ARGS__); \ - } while(0) - -#define _VERBS_DBG(fmt,...) \ - do { \ - if (unlikely(ib_ipath_debug&__VERBS_DBG)) \ - printk(KERN_DEBUG "%s: " fmt, __func__, \ - ##__VA_ARGS__); \ - } while(0) - -#define _VERBS_VDBG(fmt,...) \ - do { \ - if (unlikely(ib_ipath_debug&__VERBS_VDBG)) \ - printk(KERN_DEBUG "%s: " fmt, __func__, \ - ##__VA_ARGS__); \ - } while(0) - -#define _VERBS_SMADBG(fmt,...) \ - do { \ - if (unlikely(ib_ipath_debug&__VERBS_SMADBG)) \ - printk(KERN_DEBUG "%s: " fmt, __func__, \ - ##__VA_ARGS__); \ - } while(0) - -#else /* ! _VERBS_DEBUGGING */ - -#define _VERBS_INFO(fmt,...) -#define _VERBS_DBG(fmt,...) -#define _VERBS_VDBG(fmt,...) -#define _VERBS_SMADBG(fmt,...) - -#endif /* _VERBS_DEBUGGING */ - -#endif /* _VERBS_DEBUG_H */ -- cgit v1.2.3-70-g09d2 From 0fd41363e0785247b7c19127318abc8b5eacc86b Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:34 -0700 Subject: IB/ipath: remove stale references to userspace SMA When we first submitted a userspace subnet management agent, it was rejected, so we left it out of the final driver submission. This patch removes a number of vestigial references to it. Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_common.h | 16 +++--------- drivers/infiniband/hw/ipath/ipath_debug.h | 2 -- drivers/infiniband/hw/ipath/ipath_driver.c | 17 +++++++------ drivers/infiniband/hw/ipath/ipath_file_ops.c | 4 +-- drivers/infiniband/hw/ipath/ipath_fs.c | 4 +-- drivers/infiniband/hw/ipath/ipath_init_chip.c | 12 ++++----- drivers/infiniband/hw/ipath/ipath_intr.c | 14 +++++------ drivers/infiniband/hw/ipath/ipath_kernel.h | 11 +++------ drivers/infiniband/hw/ipath/ipath_layer.c | 3 --- drivers/infiniband/hw/ipath/ipath_layer.h | 3 --- drivers/infiniband/hw/ipath/ipath_qp.c | 35 --------------------------- drivers/infiniband/hw/ipath/ipath_stats.c | 27 --------------------- drivers/infiniband/hw/ipath/ipath_sysfs.c | 4 +-- drivers/infiniband/hw/ipath/ipath_verbs.c | 2 +- 14 files changed, 35 insertions(+), 119 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h index 062bd392e7e..f8df3b771c2 100644 --- a/drivers/infiniband/hw/ipath/ipath_common.h +++ b/drivers/infiniband/hw/ipath/ipath_common.h @@ -106,9 +106,9 @@ struct infinipath_stats { __u64 sps_ether_spkts; /* number of "ethernet" packets received by driver */ __u64 sps_ether_rpkts; - /* number of SMA packets sent by driver */ + /* number of SMA packets sent by driver. Obsolete. */ __u64 sps_sma_spkts; - /* number of SMA packets received by driver */ + /* number of SMA packets received by driver. Obsolete. */ __u64 sps_sma_rpkts; /* number of times all ports rcvhdrq was full and packet dropped */ __u64 sps_hdrqfull; @@ -138,7 +138,7 @@ struct infinipath_stats { __u64 sps_pageunlocks; /* * Number of packets dropped in kernel other than errors (ether - * packets if ipath not configured, sma/mad, etc.) + * packets if ipath not configured, etc.) */ __u64 sps_krdrops; /* pad for future growth */ @@ -153,8 +153,6 @@ struct infinipath_stats { #define IPATH_STATUS_DISABLED 0x2 /* hardware disabled */ /* Device has been disabled via admin request */ #define IPATH_STATUS_ADMIN_DISABLED 0x4 -#define IPATH_STATUS_OIB_SMA 0x8 /* ipath_mad kernel SMA running */ -#define IPATH_STATUS_SMA 0x10 /* user SMA running */ /* Chip has been found and initted */ #define IPATH_STATUS_CHIP_PRESENT 0x20 /* IB link is at ACTIVE, usable for data traffic */ @@ -465,14 +463,6 @@ struct __ipath_sendpkt { struct ipath_iovec sps_iov[4]; }; -/* Passed into SMA special file's ->read and ->write methods. */ -struct ipath_sma_pkt -{ - __u32 unit; /* unit on which to send packet */ - __u64 data; /* address of payload in userspace */ - __u32 len; /* length of payload */ -}; - /* * Data layout in I2C flash (for GUID, etc.) * All fields are little-endian binary unless otherwise stated diff --git a/drivers/infiniband/hw/ipath/ipath_debug.h b/drivers/infiniband/hw/ipath/ipath_debug.h index f415beda0d3..df69f0d80b8 100644 --- a/drivers/infiniband/hw/ipath/ipath_debug.h +++ b/drivers/infiniband/hw/ipath/ipath_debug.h @@ -60,7 +60,6 @@ #define __IPATH_USER_SEND 0x1000 /* use user mode send */ #define __IPATH_KERNEL_SEND 0x2000 /* use kernel mode send */ #define __IPATH_EPKTDBG 0x4000 /* print ethernet packet data */ -#define __IPATH_SMADBG 0x8000 /* sma packet debug */ #define __IPATH_IPATHDBG 0x10000 /* Ethernet (IPATH) gen debug */ #define __IPATH_IPATHWARN 0x20000 /* Ethernet (IPATH) warnings */ #define __IPATH_IPATHERR 0x40000 /* Ethernet (IPATH) errors */ @@ -84,7 +83,6 @@ /* print mmap/nopage stuff, not using VDBG any more */ #define __IPATH_MMDBG 0x0 #define __IPATH_EPKTDBG 0x0 /* print ethernet packet data */ -#define __IPATH_SMADBG 0x0 /* process startup (init)/exit messages */ #define __IPATH_IPATHDBG 0x0 /* Ethernet (IPATH) table dump on */ #define __IPATH_IPATHWARN 0x0 /* Ethernet (IPATH) warnings on */ #define __IPATH_IPATHERR 0x0 /* Ethernet (IPATH) errors on */ diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index e6261bb9a8a..520c38f1386 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -64,7 +64,7 @@ static struct idr unit_table; DEFINE_SPINLOCK(ipath_devs_lock); LIST_HEAD(ipath_dev_list); -wait_queue_head_t ipath_sma_state_wait; +wait_queue_head_t ipath_state_wait; unsigned ipath_debug = __IPATH_INFO; @@ -618,15 +618,16 @@ void ipath_disarm_piobufs(struct ipath_devdata *dd, unsigned first, static int ipath_wait_linkstate(struct ipath_devdata *dd, u32 state, int msecs) { - dd->ipath_sma_state_wanted = state; - wait_event_interruptible_timeout(ipath_sma_state_wait, + dd->ipath_state_wanted = state; + wait_event_interruptible_timeout(ipath_state_wait, (dd->ipath_flags & state), msecs_to_jiffies(msecs)); - dd->ipath_sma_state_wanted = 0; + dd->ipath_state_wanted = 0; if (!(dd->ipath_flags & state)) { u64 val; - ipath_cdbg(SMA, "Didn't reach linkstate %s within %u ms\n", + ipath_cdbg(VERBOSE, "Didn't reach linkstate %s within %u" + " ms\n", /* test INIT ahead of DOWN, both can be set */ (state & IPATH_LINKINIT) ? "INIT" : ((state & IPATH_LINKDOWN) ? "DOWN" : @@ -1155,7 +1156,7 @@ int ipath_setrcvhdrsize(struct ipath_devdata *dd, unsigned rhdrsize) * * do appropriate marking as busy, etc. * returns buffer number if one found (>=0), negative number is error. - * Used by ipath_sma_send_pkt and ipath_layer_send + * Used by ipath_layer_send */ u32 __iomem *ipath_getpiobuf(struct ipath_devdata *dd, u32 * pbufnum) { @@ -1448,7 +1449,7 @@ static void ipath_set_ib_lstate(struct ipath_devdata *dd, int which) int linkcmd = (which >> INFINIPATH_IBCC_LINKCMD_SHIFT) & INFINIPATH_IBCC_LINKCMD_MASK; - ipath_cdbg(SMA, "Trying to move unit %u to %s, current ltstate " + ipath_cdbg(VERBOSE, "Trying to move unit %u to %s, current ltstate " "is %s\n", dd->ipath_unit, what[linkcmd], ipath_ibcstatus_str[ @@ -1457,7 +1458,7 @@ static void ipath_set_ib_lstate(struct ipath_devdata *dd, int which) INFINIPATH_IBCS_LINKTRAININGSTATE_SHIFT) & INFINIPATH_IBCS_LINKTRAININGSTATE_MASK]); /* flush all queued sends when going to DOWN or INIT, to be sure that - * they don't block SMA and other MAD packets */ + * they don't block MAD packets */ if (!linkcmd || linkcmd == INFINIPATH_IBCC_LINKCMD_INIT) { ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, INFINIPATH_S_ABORT); diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index f865ce89b73..4080fed2dcd 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -1816,7 +1816,7 @@ int ipath_user_add(struct ipath_devdata *dd) if (ret < 0) { ipath_dev_err(dd, "Could not create wildcard " "minor: error %d\n", -ret); - goto bail_sma; + goto bail_user; } atomic_set(&user_setup, 1); @@ -1832,7 +1832,7 @@ int ipath_user_add(struct ipath_devdata *dd) goto bail; -bail_sma: +bail_user: user_cleanup(); bail: return ret; diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c index 0936d8e8d70..a5eb30a06a5 100644 --- a/drivers/infiniband/hw/ipath/ipath_fs.c +++ b/drivers/infiniband/hw/ipath/ipath_fs.c @@ -191,8 +191,8 @@ static ssize_t atomic_port_info_read(struct file *file, char __user *buf, portinfo[4] = (dd->ipath_lid << 16); /* - * Notimpl yet SMLID (should we store this in the driver, in case - * SMA dies?) CapabilityMask is 0, we don't support any of these + * Notimpl yet SMLID. + * CapabilityMask is 0, we don't support any of these * DiagCode is 0; we don't store any diag info for now Notimpl yet * M_KeyLeasePeriod (we don't support M_Key) */ diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c index 75c37213670..44669dc2e22 100644 --- a/drivers/infiniband/hw/ipath/ipath_init_chip.c +++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c @@ -53,8 +53,8 @@ module_param_named(cfgports, ipath_cfgports, ushort, S_IRUGO); MODULE_PARM_DESC(cfgports, "Set max number of ports to use"); /* - * Number of buffers reserved for driver (layered drivers and SMA - * send). Reserved at end of buffer list. Initialized based on + * Number of buffers reserved for driver (verbs and layered drivers.) + * Reserved at end of buffer list. Initialized based on * number of PIO buffers if not set via module interface. * The problem with this is that it's global, but we'll use different * numbers for different chip types. So the default value is not @@ -80,7 +80,7 @@ MODULE_PARM_DESC(kpiobufs, "Set number of PIO buffers for driver"); * * Allocate the eager TID buffers and program them into infinipath. * We use the network layer alloc_skb() allocator to allocate the - * memory, and either use the buffers as is for things like SMA + * memory, and either use the buffers as is for things like verbs * packets, or pass the buffers up to the ipath layered driver and * thence the network layer, replacing them as we do so (see * ipath_rcv_layer()). @@ -450,9 +450,9 @@ static void enable_chip(struct ipath_devdata *dd, u32 val; int i; - if (!reinit) { - init_waitqueue_head(&ipath_sma_state_wait); - } + if (!reinit) + init_waitqueue_head(&ipath_state_wait); + ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl, dd->ipath_rcvctrl); diff --git a/drivers/infiniband/hw/ipath/ipath_intr.c b/drivers/infiniband/hw/ipath/ipath_intr.c index 250e2a9f01b..49bf7bb15b0 100644 --- a/drivers/infiniband/hw/ipath/ipath_intr.c +++ b/drivers/infiniband/hw/ipath/ipath_intr.c @@ -201,7 +201,7 @@ static void handle_e_ibstatuschanged(struct ipath_devdata *dd, ib_linkstate(lstate)); } else - ipath_cdbg(SMA, "Unit %u link state %s, last " + ipath_cdbg(VERBOSE, "Unit %u link state %s, last " "was %s\n", dd->ipath_unit, ib_linkstate(lstate), ib_linkstate((unsigned) @@ -213,7 +213,7 @@ static void handle_e_ibstatuschanged(struct ipath_devdata *dd, if (lstate == IPATH_IBSTATE_INIT || lstate == IPATH_IBSTATE_ARM || lstate == IPATH_IBSTATE_ACTIVE) - ipath_cdbg(SMA, "Unit %u link state down" + ipath_cdbg(VERBOSE, "Unit %u link state down" " (state 0x%x), from %s\n", dd->ipath_unit, (u32)val & IPATH_IBSTATE_MASK, @@ -269,7 +269,7 @@ static void handle_e_ibstatuschanged(struct ipath_devdata *dd, INFINIPATH_IBCS_LINKSTATE_MASK) == INFINIPATH_IBCS_L_STATE_ACTIVE) /* if from up to down be more vocal */ - ipath_cdbg(SMA, + ipath_cdbg(VERBOSE, "Unit %u link now down (%s)\n", dd->ipath_unit, ipath_ibcstatus_str[ltstate]); @@ -596,11 +596,11 @@ static int handle_errors(struct ipath_devdata *dd, ipath_err_t errs) if (!noprint && *msg) ipath_dev_err(dd, "%s error\n", msg); - if (dd->ipath_sma_state_wanted & dd->ipath_flags) { - ipath_cdbg(VERBOSE, "sma wanted state %x, iflags now %x, " - "waking\n", dd->ipath_sma_state_wanted, + if (dd->ipath_state_wanted & dd->ipath_flags) { + ipath_cdbg(VERBOSE, "driver wanted state %x, iflags now %x, " + "waking\n", dd->ipath_state_wanted, dd->ipath_flags); - wake_up_interruptible(&ipath_sma_state_wait); + wake_up_interruptible(&ipath_state_wait); } return chkerrpkts; diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index af342314b36..a600347bba6 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -245,8 +245,8 @@ struct ipath_devdata { u32 ipath_pioavregs; /* IPATH_POLL, etc. */ u32 ipath_flags; - /* ipath_flags sma is waiting for */ - u32 ipath_sma_state_wanted; + /* ipath_flags driver is waiting for */ + u32 ipath_state_wanted; /* last buffer for user use, first buf for kernel use is this * index. */ u32 ipath_lastport_piobuf; @@ -306,10 +306,6 @@ struct ipath_devdata { u32 ipath_pcibar0; /* so we can rewrite it after a chip reset */ u32 ipath_pcibar1; - /* sequential tries for SMA send and no bufs */ - u32 ipath_nosma_bufs; - /* duration (seconds) ipath_nosma_bufs set */ - u32 ipath_nosma_secs; /* HT/PCI Vendor ID (here for NodeInfo) */ u16 ipath_vendorid; @@ -534,7 +530,7 @@ int ipath_diag_add(struct ipath_devdata *); void ipath_diag_remove(struct ipath_devdata *); void ipath_diag_bringup_link(struct ipath_devdata *); -extern wait_queue_head_t ipath_sma_state_wait; +extern wait_queue_head_t ipath_state_wait; int ipath_user_add(struct ipath_devdata *dd); void ipath_user_remove(struct ipath_devdata *dd); @@ -818,7 +814,6 @@ extern struct mutex ipath_mutex; #define IPATH_DRV_NAME "ib_ipath" #define IPATH_MAJOR 233 #define IPATH_USER_MINOR_BASE 0 -#define IPATH_SMA_MINOR 128 #define IPATH_DIAG_MINOR_BASE 129 #define IPATH_NMINORS 255 diff --git a/drivers/infiniband/hw/ipath/ipath_layer.c b/drivers/infiniband/hw/ipath/ipath_layer.c index 10f578e2aed..e46aa4ed2a7 100644 --- a/drivers/infiniband/hw/ipath/ipath_layer.c +++ b/drivers/infiniband/hw/ipath/ipath_layer.c @@ -162,9 +162,6 @@ int ipath_layer_register(void *(*l_add)(int, struct ipath_devdata *), if (dd->ipath_layer.l_arg) continue; - if (!(*dd->ipath_statusp & IPATH_STATUS_SMA)) - *dd->ipath_statusp |= IPATH_STATUS_OIB_SMA; - spin_unlock_irqrestore(&ipath_devs_lock, flags); dd->ipath_layer.l_arg = l_add(dd->ipath_unit, dd); spin_lock_irqsave(&ipath_devs_lock, flags); diff --git a/drivers/infiniband/hw/ipath/ipath_layer.h b/drivers/infiniband/hw/ipath/ipath_layer.h index 4a27ede4994..3854a4eae68 100644 --- a/drivers/infiniband/hw/ipath/ipath_layer.h +++ b/drivers/infiniband/hw/ipath/ipath_layer.h @@ -66,9 +66,6 @@ int ipath_layer_set_piointbufavail_int(struct ipath_devdata *dd); #define IPATH_LAYER_INT_SEND_CONTINUE 0x10 #define IPATH_LAYER_INT_BCAST 0x40 -/* _verbs_layer.l_flags */ -#define IPATH_VERBS_KERNEL_SMA 0x1 - extern unsigned ipath_debug; /* debugging bit mask */ #endif /* _IPATH_LAYER_H */ diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index b86858e70f2..c0267cf8ca8 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -644,33 +644,6 @@ __be32 ipath_compute_aeth(struct ipath_qp *qp) return cpu_to_be32(aeth); } -/** - * set_verbs_flags - set the verbs layer flags - * @dd: the infinipath device - * @flags: the flags to set - */ -static int set_verbs_flags(struct ipath_devdata *dd, unsigned flags) -{ - struct ipath_devdata *ss; - unsigned long lflags; - - spin_lock_irqsave(&ipath_devs_lock, lflags); - - list_for_each_entry(ss, &ipath_dev_list, ipath_list) { - if (!(ss->ipath_flags & IPATH_INITTED)) - continue; - if ((flags & IPATH_VERBS_KERNEL_SMA) && - !(*ss->ipath_statusp & IPATH_STATUS_SMA)) - *ss->ipath_statusp |= IPATH_STATUS_OIB_SMA; - else - *ss->ipath_statusp &= ~IPATH_STATUS_OIB_SMA; - } - - spin_unlock_irqrestore(&ipath_devs_lock, lflags); - - return 0; -} - /** * ipath_create_qp - create a queue pair for a device * @ibpd: the protection domain who's device we create the queue pair for @@ -784,10 +757,6 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd, } qp->ip = NULL; ipath_reset_qp(qp); - - /* Tell the core driver that the kernel SMA is present. */ - if (init_attr->qp_type == IB_QPT_SMI) - set_verbs_flags(dev->dd, IPATH_VERBS_KERNEL_SMA); break; default: @@ -862,10 +831,6 @@ int ipath_destroy_qp(struct ib_qp *ibqp) struct ipath_ibdev *dev = to_idev(ibqp->device); unsigned long flags; - /* Tell the core driver that the kernel SMA is gone. */ - if (qp->ibqp.qp_type == IB_QPT_SMI) - set_verbs_flags(dev->dd, 0); - spin_lock_irqsave(&qp->s_lock, flags); qp->state = IB_QPS_ERR; spin_unlock_irqrestore(&qp->s_lock, flags); diff --git a/drivers/infiniband/hw/ipath/ipath_stats.c b/drivers/infiniband/hw/ipath/ipath_stats.c index 70351b7e35c..30a825928fc 100644 --- a/drivers/infiniband/hw/ipath/ipath_stats.c +++ b/drivers/infiniband/hw/ipath/ipath_stats.c @@ -271,33 +271,6 @@ void ipath_get_faststats(unsigned long opaque) } } - if (dd->ipath_nosma_bufs) { - dd->ipath_nosma_secs += 5; - if (dd->ipath_nosma_secs >= 30) { - ipath_cdbg(SMA, "No SMA bufs avail %u seconds; " - "cancelling pending sends\n", - dd->ipath_nosma_secs); - /* - * issue an abort as well, in case we have a packet - * stuck in launch fifo. This could corrupt an - * outgoing user packet in the worst case, - * but this is a pretty catastrophic, anyway. - */ - ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, - INFINIPATH_S_ABORT); - ipath_disarm_piobufs(dd, dd->ipath_lastport_piobuf, - dd->ipath_piobcnt2k + - dd->ipath_piobcnt4k - - dd->ipath_lastport_piobuf); - /* start again, if necessary */ - dd->ipath_nosma_secs = 0; - } else - ipath_cdbg(SMA, "No SMA bufs avail %u tries, " - "after %u seconds\n", - dd->ipath_nosma_bufs, - dd->ipath_nosma_secs); - } - done: mod_timer(&dd->ipath_stats_timer, jiffies + HZ * 5); } diff --git a/drivers/infiniband/hw/ipath/ipath_sysfs.c b/drivers/infiniband/hw/ipath/ipath_sysfs.c index 56f12202ff4..8476dd3c7af 100644 --- a/drivers/infiniband/hw/ipath/ipath_sysfs.c +++ b/drivers/infiniband/hw/ipath/ipath_sysfs.c @@ -107,8 +107,8 @@ static const char *ipath_status_str[] = { "Initted", "Disabled", "Admin_Disabled", - "OIB_SMA", - "SMA", + "", /* This used to be the old "OIB_SMA" status. */ + "", /* This used to be the old "SMA" status. */ "Present", "IB_link_up", "IB_configured", diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 1776330914e..ab0006288b4 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -1573,7 +1573,7 @@ int ipath_register_ib_device(struct ipath_devdata *dd) dev->mmap = ipath_mmap; snprintf(dev->node_desc, sizeof(dev->node_desc), - IPATH_IDSTR " %s kernel_SMA", system_utsname.nodename); + IPATH_IDSTR " %s", system_utsname.nodename); ret = ib_register_device(dev); if (ret) -- cgit v1.2.3-70-g09d2 From 32c0a26c8f91dbc2797175c2bdff42b54f66c71d Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:35 -0700 Subject: IB/ipath: trivial cleanups Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_kernel.h | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index a600347bba6..0ae2729c7ea 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -528,7 +528,6 @@ void ipath_cdev_cleanup(struct cdev **cdevp, int ipath_diag_add(struct ipath_devdata *); void ipath_diag_remove(struct ipath_devdata *); -void ipath_diag_bringup_link(struct ipath_devdata *); extern wait_queue_head_t ipath_state_wait; -- cgit v1.2.3-70-g09d2 From 98341f261893acd7bc5abee5ddc35337ef49e457 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:36 -0700 Subject: IB/ipath: add new minor device to allow sending of diag packets Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_common.h | 7 ++ drivers/infiniband/hw/ipath/ipath_diag.c | 153 +++++++++++++++++++++++++++++ drivers/infiniband/hw/ipath/ipath_driver.c | 12 +++ drivers/infiniband/hw/ipath/ipath_kernel.h | 4 + 4 files changed, 176 insertions(+) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h index f8df3b771c2..f577905e3ac 100644 --- a/drivers/infiniband/hw/ipath/ipath_common.h +++ b/drivers/infiniband/hw/ipath/ipath_common.h @@ -463,6 +463,13 @@ struct __ipath_sendpkt { struct ipath_iovec sps_iov[4]; }; +/* Passed into diag data special file's ->write method. */ +struct ipath_diag_pkt { + __u32 unit; + __u64 data; + __u32 len; +}; + /* * Data layout in I2C flash (for GUID, etc.) * All fields are little-endian binary unless otherwise stated diff --git a/drivers/infiniband/hw/ipath/ipath_diag.c b/drivers/infiniband/hw/ipath/ipath_diag.c index 5d77a74aa57..28b6b46c106 100644 --- a/drivers/infiniband/hw/ipath/ipath_diag.c +++ b/drivers/infiniband/hw/ipath/ipath_diag.c @@ -41,6 +41,7 @@ * through the /sys/bus/pci resource mmap interface. */ +#include #include #include @@ -273,6 +274,158 @@ bail: return ret; } +static ssize_t ipath_diagpkt_write(struct file *fp, + const char __user *data, + size_t count, loff_t *off); + +static struct file_operations diagpkt_file_ops = { + .owner = THIS_MODULE, + .write = ipath_diagpkt_write, +}; + +static struct cdev *diagpkt_cdev; +static struct class_device *diagpkt_class_dev; + +int __init ipath_diagpkt_add(void) +{ + return ipath_cdev_init(IPATH_DIAGPKT_MINOR, + "ipath_diagpkt", &diagpkt_file_ops, + &diagpkt_cdev, &diagpkt_class_dev); +} + +void __exit ipath_diagpkt_remove(void) +{ + ipath_cdev_cleanup(&diagpkt_cdev, &diagpkt_class_dev); +} + +/** + * ipath_diagpkt_write - write an IB packet + * @fp: the diag data device file pointer + * @data: ipath_diag_pkt structure saying where to get the packet + * @count: size of data to write + * @off: unused by this code + */ +static ssize_t ipath_diagpkt_write(struct file *fp, + const char __user *data, + size_t count, loff_t *off) +{ + u32 __iomem *piobuf; + u32 plen, clen, pbufn; + struct ipath_diag_pkt dp; + u32 *tmpbuf = NULL; + struct ipath_devdata *dd; + ssize_t ret = 0; + u64 val; + + if (count < sizeof(dp)) { + ret = -EINVAL; + goto bail; + } + + if (copy_from_user(&dp, data, sizeof(dp))) { + ret = -EFAULT; + goto bail; + } + + /* send count must be an exact number of dwords */ + if (dp.len & 3) { + ret = -EINVAL; + goto bail; + } + + clen = dp.len >> 2; + + dd = ipath_lookup(dp.unit); + if (!dd || !(dd->ipath_flags & IPATH_PRESENT) || + !dd->ipath_kregbase) { + ipath_cdbg(VERBOSE, "illegal unit %u for diag data send\n", + dp.unit); + ret = -ENODEV; + goto bail; + } + + if (ipath_diag_inuse && !diag_set_link && + !(dd->ipath_flags & IPATH_LINKACTIVE)) { + diag_set_link = 1; + ipath_cdbg(VERBOSE, "Trying to set to set link active for " + "diag pkt\n"); + ipath_set_linkstate(dd, IPATH_IB_LINKARM); + ipath_set_linkstate(dd, IPATH_IB_LINKACTIVE); + } + + if (!(dd->ipath_flags & IPATH_INITTED)) { + /* no hardware, freeze, etc. */ + ipath_cdbg(VERBOSE, "unit %u not usable\n", dd->ipath_unit); + ret = -ENODEV; + goto bail; + } + val = dd->ipath_lastibcstat & IPATH_IBSTATE_MASK; + if (val != IPATH_IBSTATE_INIT && val != IPATH_IBSTATE_ARM && + val != IPATH_IBSTATE_ACTIVE) { + ipath_cdbg(VERBOSE, "unit %u not ready (state %llx)\n", + dd->ipath_unit, (unsigned long long) val); + ret = -EINVAL; + goto bail; + } + + /* need total length before first word written */ + /* +1 word is for the qword padding */ + plen = sizeof(u32) + dp.len; + + if ((plen + 4) > dd->ipath_ibmaxlen) { + ipath_dbg("Pkt len 0x%x > ibmaxlen %x\n", + plen - 4, dd->ipath_ibmaxlen); + ret = -EINVAL; + goto bail; /* before writing pbc */ + } + tmpbuf = vmalloc(plen); + if (!tmpbuf) { + dev_info(&dd->pcidev->dev, "Unable to allocate tmp buffer, " + "failing\n"); + ret = -ENOMEM; + goto bail; + } + + if (copy_from_user(tmpbuf, + (const void __user *) (unsigned long) dp.data, + dp.len)) { + ret = -EFAULT; + goto bail; + } + + piobuf = ipath_getpiobuf(dd, &pbufn); + if (!piobuf) { + ipath_cdbg(VERBOSE, "No PIO buffers avail unit for %u\n", + dd->ipath_unit); + ret = -EBUSY; + goto bail; + } + + plen >>= 2; /* in dwords */ + + if (ipath_debug & __IPATH_PKTDBG) + ipath_cdbg(VERBOSE, "unit %u 0x%x+1w pio%d\n", + dd->ipath_unit, plen - 1, pbufn); + + /* we have to flush after the PBC for correctness on some cpus + * or WC buffer can be written out of order */ + writeq(plen, piobuf); + ipath_flush_wc(); + /* copy all by the trigger word, then flush, so it's written + * to chip before trigger word, then write trigger word, then + * flush again, so packet is sent. */ + __iowrite32_copy(piobuf + 2, tmpbuf, clen - 1); + ipath_flush_wc(); + __raw_writel(tmpbuf[clen - 1], piobuf + clen + 1); + ipath_flush_wc(); + + ret = sizeof(dp); + +bail: + vfree(tmpbuf); + return ret; +} + static int ipath_diag_release(struct inode *in, struct file *fp) { mutex_lock(&ipath_mutex); diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index 520c38f1386..8c908b30984 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -1881,8 +1881,18 @@ static int __init infinipath_init(void) goto bail_group; } + ret = ipath_diagpkt_add(); + if (ret < 0) { + printk(KERN_ERR IPATH_DRV_NAME ": Unable to create " + "diag data device: error %d\n", -ret); + goto bail_ipathfs; + } + goto bail; +bail_ipathfs: + ipath_exit_ipathfs(); + bail_group: ipath_driver_remove_group(&ipath_driver.driver); @@ -1993,6 +2003,8 @@ static void __exit infinipath_cleanup(void) struct ipath_devdata *dd, *tmp; unsigned long flags; + ipath_diagpkt_remove(); + ipath_exit_ipathfs(); ipath_driver_remove_group(&ipath_driver.driver); diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index 0ae2729c7ea..f8accc79b92 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -789,6 +789,9 @@ int ipath_device_create_group(struct device *, struct ipath_devdata *); void ipath_device_remove_group(struct device *, struct ipath_devdata *); int ipath_expose_reset(struct device *); +int ipath_diagpkt_add(void); +void ipath_diagpkt_remove(void); + int ipath_init_ipathfs(void); void ipath_exit_ipathfs(void); int ipathfs_add_device(struct ipath_devdata *); @@ -813,6 +816,7 @@ extern struct mutex ipath_mutex; #define IPATH_DRV_NAME "ib_ipath" #define IPATH_MAJOR 233 #define IPATH_USER_MINOR_BASE 0 +#define IPATH_DIAGPKT_MINOR 127 #define IPATH_DIAG_MINOR_BASE 129 #define IPATH_NMINORS 255 -- cgit v1.2.3-70-g09d2 From eae33d47a797e159306567643284a98ae7428ec4 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:37 -0700 Subject: IB/ipath: do not allow use of CQ entries with invalid counts Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_cq.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_cq.c b/drivers/infiniband/hw/ipath/ipath_cq.c index 3c4c198a451..049221bc590 100644 --- a/drivers/infiniband/hw/ipath/ipath_cq.c +++ b/drivers/infiniband/hw/ipath/ipath_cq.c @@ -172,7 +172,7 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries, struct ipath_cq_wc *wc; struct ib_cq *ret; - if (entries > ib_ipath_max_cqes) { + if (entries < 1 || entries > ib_ipath_max_cqes) { ret = ERR_PTR(-EINVAL); goto done; } @@ -324,6 +324,11 @@ int ipath_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata) u32 head, tail, n; int ret; + if (cqe < 1 || cqe > ib_ipath_max_cqes) { + ret = -EINVAL; + goto bail; + } + /* * Need to use vmalloc() if we want to support large #s of entries. */ -- cgit v1.2.3-70-g09d2 From 092260b8f966ebe0742045416082e9a81bd971d1 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:38 -0700 Subject: IB/ipath: account for attached QPs correctly Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_verbs_mcast.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c b/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c index cb35679e4a1..085e28b939e 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs_mcast.c @@ -217,6 +217,8 @@ static int ipath_mcast_add(struct ipath_ibdev *dev, dev->n_mcast_grps_allocated++; spin_unlock(&dev->n_mcast_grps_lock); + mcast->n_attached++; + list_add_tail_rcu(&mqp->list, &mcast->qp_list); atomic_inc(&mcast->refcount); -- cgit v1.2.3-70-g09d2 From 525d0ca1d452ed336c1d907fb20c104467a8a47b Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:39 -0700 Subject: IB/ipath: support new QLogic product naming scheme This patch only renames files, fixes product names, and updates comments. Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/Makefile | 4 +- drivers/infiniband/hw/ipath/ipath_driver.c | 9 +- drivers/infiniband/hw/ipath/ipath_file_ops.c | 6 +- drivers/infiniband/hw/ipath/ipath_ht400.c | 1603 ------------------------- drivers/infiniband/hw/ipath/ipath_iba6110.c | 1602 ++++++++++++++++++++++++ drivers/infiniband/hw/ipath/ipath_iba6120.c | 1254 +++++++++++++++++++ drivers/infiniband/hw/ipath/ipath_kernel.h | 8 +- drivers/infiniband/hw/ipath/ipath_pe800.c | 1254 ------------------- drivers/infiniband/hw/ipath/ipath_registers.h | 5 +- 9 files changed, 2871 insertions(+), 2874 deletions(-) delete mode 100644 drivers/infiniband/hw/ipath/ipath_ht400.c create mode 100644 drivers/infiniband/hw/ipath/ipath_iba6110.c create mode 100644 drivers/infiniband/hw/ipath/ipath_iba6120.c delete mode 100644 drivers/infiniband/hw/ipath/ipath_pe800.c (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/Makefile b/drivers/infiniband/hw/ipath/Makefile index 690dc713e63..5e29cb0095e 100644 --- a/drivers/infiniband/hw/ipath/Makefile +++ b/drivers/infiniband/hw/ipath/Makefile @@ -10,7 +10,8 @@ ib_ipath-y := \ ipath_eeprom.o \ ipath_file_ops.o \ ipath_fs.o \ - ipath_ht400.o \ + ipath_iba6110.o \ + ipath_iba6120.o \ ipath_init_chip.o \ ipath_intr.o \ ipath_keys.o \ @@ -18,7 +19,6 @@ ib_ipath-y := \ ipath_mad.o \ ipath_mmap.o \ ipath_mr.o \ - ipath_pe800.o \ ipath_qp.o \ ipath_rc.o \ ipath_ruc.o \ diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index 8c908b30984..3a15efee738 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -401,10 +401,10 @@ static int __devinit ipath_init_one(struct pci_dev *pdev, /* setup the chip-specific functions, as early as possible. */ switch (ent->device) { case PCI_DEVICE_ID_INFINIPATH_HT: - ipath_init_ht400_funcs(dd); + ipath_init_iba6110_funcs(dd); break; case PCI_DEVICE_ID_INFINIPATH_PE800: - ipath_init_pe800_funcs(dd); + ipath_init_iba6120_funcs(dd); break; default: ipath_dev_err(dd, "Found unknown QLogic deviceid 0x%x, " @@ -969,7 +969,8 @@ reloop: */ if (l == hdrqtail || (i && !(i&0xf))) { u64 lval; - if (l == hdrqtail) /* PE-800 interrupt only on last */ + if (l == hdrqtail) + /* request IBA6120 interrupt only on last */ lval = dd->ipath_rhdrhead_intr_off | l; else lval = l; @@ -983,7 +984,7 @@ reloop: } if (!dd->ipath_rhdrhead_intr_off && !reloop) { - /* HT-400 workaround; we can have a race clearing chip + /* IBA6110 workaround; we can have a race clearing chip * interrupt with another interrupt about to be delivered, * and can clear it before it is delivered on the GPIO * workaround. By doing the extra check here for the diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index 4080fed2dcd..6ba9a2d1e6e 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -1110,7 +1110,7 @@ static int ipath_mmap(struct file *fp, struct vm_area_struct *vma) ret = mmap_rcvegrbufs(vma, pd); else if (pgaddr == (u64) pd->port_rcvhdrq_phys) { /* - * The rcvhdrq itself; readonly except on HT-400 (so have + * The rcvhdrq itself; readonly except on HT (so have * to allow writable mapping), multiple pages, contiguous * from an i/o perspective. */ @@ -1298,14 +1298,14 @@ static int find_best_unit(struct file *fp) * This code is present to allow a knowledgeable person to * specify the layout of processes to processors before opening * this driver, and then we'll assign the process to the "closest" - * HT-400 to that processor (we assume reasonable connectivity, + * InfiniPath chip to that processor (we assume reasonable connectivity, * for now). This code assumes that if affinity has been set * before this point, that at most one cpu is set; for now this * is reasonable. I check for both cpus_empty() and cpus_full(), * in case some kernel variant sets none of the bits when no * affinity is set. 2.6.11 and 12 kernels have all present * cpus set. Some day we'll have to fix it up further to handle - * a cpu subset. This algorithm fails for two HT-400's connected + * a cpu subset. This algorithm fails for two HT chips connected * in tunnel fashion. Eventually this needs real topology * information. There may be some issues with dual core numbering * as well. This needs more work prior to release. diff --git a/drivers/infiniband/hw/ipath/ipath_ht400.c b/drivers/infiniband/hw/ipath/ipath_ht400.c deleted file mode 100644 index 3db015da6e7..00000000000 --- a/drivers/infiniband/hw/ipath/ipath_ht400.c +++ /dev/null @@ -1,1603 +0,0 @@ -/* - * Copyright (c) 2006 QLogic, Inc. All rights reserved. - * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. - * - * This software is available to you under a choice of one of two - * licenses. You may choose to be licensed under the terms of the GNU - * General Public License (GPL) Version 2, available from the file - * COPYING in the main directory of this source tree, or the - * OpenIB.org BSD license below: - * - * Redistribution and use in source and binary forms, with or - * without modification, are permitted provided that the following - * conditions are met: - * - * - Redistributions of source code must retain the above - * copyright notice, this list of conditions and the following - * disclaimer. - * - * - Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials - * provided with the distribution. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -/* - * This file contains all of the code that is specific to the InfiniPath - * HT-400 chip. - */ - -#include -#include - -#include "ipath_kernel.h" -#include "ipath_registers.h" - -/* - * This lists the InfiniPath HT400 registers, in the actual chip layout. - * This structure should never be directly accessed. - * - * The names are in InterCap form because they're taken straight from - * the chip specification. Since they're only used in this file, they - * don't pollute the rest of the source. -*/ - -struct _infinipath_do_not_use_kernel_regs { - unsigned long long Revision; - unsigned long long Control; - unsigned long long PageAlign; - unsigned long long PortCnt; - unsigned long long DebugPortSelect; - unsigned long long DebugPort; - unsigned long long SendRegBase; - unsigned long long UserRegBase; - unsigned long long CounterRegBase; - unsigned long long Scratch; - unsigned long long ReservedMisc1; - unsigned long long InterruptConfig; - unsigned long long IntBlocked; - unsigned long long IntMask; - unsigned long long IntStatus; - unsigned long long IntClear; - unsigned long long ErrorMask; - unsigned long long ErrorStatus; - unsigned long long ErrorClear; - unsigned long long HwErrMask; - unsigned long long HwErrStatus; - unsigned long long HwErrClear; - unsigned long long HwDiagCtrl; - unsigned long long MDIO; - unsigned long long IBCStatus; - unsigned long long IBCCtrl; - unsigned long long ExtStatus; - unsigned long long ExtCtrl; - unsigned long long GPIOOut; - unsigned long long GPIOMask; - unsigned long long GPIOStatus; - unsigned long long GPIOClear; - unsigned long long RcvCtrl; - unsigned long long RcvBTHQP; - unsigned long long RcvHdrSize; - unsigned long long RcvHdrCnt; - unsigned long long RcvHdrEntSize; - unsigned long long RcvTIDBase; - unsigned long long RcvTIDCnt; - unsigned long long RcvEgrBase; - unsigned long long RcvEgrCnt; - unsigned long long RcvBufBase; - unsigned long long RcvBufSize; - unsigned long long RxIntMemBase; - unsigned long long RxIntMemSize; - unsigned long long RcvPartitionKey; - unsigned long long ReservedRcv[10]; - unsigned long long SendCtrl; - unsigned long long SendPIOBufBase; - unsigned long long SendPIOSize; - unsigned long long SendPIOBufCnt; - unsigned long long SendPIOAvailAddr; - unsigned long long TxIntMemBase; - unsigned long long TxIntMemSize; - unsigned long long ReservedSend[9]; - unsigned long long SendBufferError; - unsigned long long SendBufferErrorCONT1; - unsigned long long SendBufferErrorCONT2; - unsigned long long SendBufferErrorCONT3; - unsigned long long ReservedSBE[4]; - unsigned long long RcvHdrAddr0; - unsigned long long RcvHdrAddr1; - unsigned long long RcvHdrAddr2; - unsigned long long RcvHdrAddr3; - unsigned long long RcvHdrAddr4; - unsigned long long RcvHdrAddr5; - unsigned long long RcvHdrAddr6; - unsigned long long RcvHdrAddr7; - unsigned long long RcvHdrAddr8; - unsigned long long ReservedRHA[7]; - unsigned long long RcvHdrTailAddr0; - unsigned long long RcvHdrTailAddr1; - unsigned long long RcvHdrTailAddr2; - unsigned long long RcvHdrTailAddr3; - unsigned long long RcvHdrTailAddr4; - unsigned long long RcvHdrTailAddr5; - unsigned long long RcvHdrTailAddr6; - unsigned long long RcvHdrTailAddr7; - unsigned long long RcvHdrTailAddr8; - unsigned long long ReservedRHTA[7]; - unsigned long long Sync; /* Software only */ - unsigned long long Dump; /* Software only */ - unsigned long long SimVer; /* Software only */ - unsigned long long ReservedSW[5]; - unsigned long long SerdesConfig0; - unsigned long long SerdesConfig1; - unsigned long long SerdesStatus; - unsigned long long XGXSConfig; - unsigned long long ReservedSW2[4]; -}; - -#define IPATH_KREG_OFFSET(field) (offsetof(struct \ - _infinipath_do_not_use_kernel_regs, field) / sizeof(u64)) -#define IPATH_CREG_OFFSET(field) (offsetof( \ - struct infinipath_counters, field) / sizeof(u64)) - -static const struct ipath_kregs ipath_ht_kregs = { - .kr_control = IPATH_KREG_OFFSET(Control), - .kr_counterregbase = IPATH_KREG_OFFSET(CounterRegBase), - .kr_debugport = IPATH_KREG_OFFSET(DebugPort), - .kr_debugportselect = IPATH_KREG_OFFSET(DebugPortSelect), - .kr_errorclear = IPATH_KREG_OFFSET(ErrorClear), - .kr_errormask = IPATH_KREG_OFFSET(ErrorMask), - .kr_errorstatus = IPATH_KREG_OFFSET(ErrorStatus), - .kr_extctrl = IPATH_KREG_OFFSET(ExtCtrl), - .kr_extstatus = IPATH_KREG_OFFSET(ExtStatus), - .kr_gpio_clear = IPATH_KREG_OFFSET(GPIOClear), - .kr_gpio_mask = IPATH_KREG_OFFSET(GPIOMask), - .kr_gpio_out = IPATH_KREG_OFFSET(GPIOOut), - .kr_gpio_status = IPATH_KREG_OFFSET(GPIOStatus), - .kr_hwdiagctrl = IPATH_KREG_OFFSET(HwDiagCtrl), - .kr_hwerrclear = IPATH_KREG_OFFSET(HwErrClear), - .kr_hwerrmask = IPATH_KREG_OFFSET(HwErrMask), - .kr_hwerrstatus = IPATH_KREG_OFFSET(HwErrStatus), - .kr_ibcctrl = IPATH_KREG_OFFSET(IBCCtrl), - .kr_ibcstatus = IPATH_KREG_OFFSET(IBCStatus), - .kr_intblocked = IPATH_KREG_OFFSET(IntBlocked), - .kr_intclear = IPATH_KREG_OFFSET(IntClear), - .kr_interruptconfig = IPATH_KREG_OFFSET(InterruptConfig), - .kr_intmask = IPATH_KREG_OFFSET(IntMask), - .kr_intstatus = IPATH_KREG_OFFSET(IntStatus), - .kr_mdio = IPATH_KREG_OFFSET(MDIO), - .kr_pagealign = IPATH_KREG_OFFSET(PageAlign), - .kr_partitionkey = IPATH_KREG_OFFSET(RcvPartitionKey), - .kr_portcnt = IPATH_KREG_OFFSET(PortCnt), - .kr_rcvbthqp = IPATH_KREG_OFFSET(RcvBTHQP), - .kr_rcvbufbase = IPATH_KREG_OFFSET(RcvBufBase), - .kr_rcvbufsize = IPATH_KREG_OFFSET(RcvBufSize), - .kr_rcvctrl = IPATH_KREG_OFFSET(RcvCtrl), - .kr_rcvegrbase = IPATH_KREG_OFFSET(RcvEgrBase), - .kr_rcvegrcnt = IPATH_KREG_OFFSET(RcvEgrCnt), - .kr_rcvhdrcnt = IPATH_KREG_OFFSET(RcvHdrCnt), - .kr_rcvhdrentsize = IPATH_KREG_OFFSET(RcvHdrEntSize), - .kr_rcvhdrsize = IPATH_KREG_OFFSET(RcvHdrSize), - .kr_rcvintmembase = IPATH_KREG_OFFSET(RxIntMemBase), - .kr_rcvintmemsize = IPATH_KREG_OFFSET(RxIntMemSize), - .kr_rcvtidbase = IPATH_KREG_OFFSET(RcvTIDBase), - .kr_rcvtidcnt = IPATH_KREG_OFFSET(RcvTIDCnt), - .kr_revision = IPATH_KREG_OFFSET(Revision), - .kr_scratch = IPATH_KREG_OFFSET(Scratch), - .kr_sendbuffererror = IPATH_KREG_OFFSET(SendBufferError), - .kr_sendctrl = IPATH_KREG_OFFSET(SendCtrl), - .kr_sendpioavailaddr = IPATH_KREG_OFFSET(SendPIOAvailAddr), - .kr_sendpiobufbase = IPATH_KREG_OFFSET(SendPIOBufBase), - .kr_sendpiobufcnt = IPATH_KREG_OFFSET(SendPIOBufCnt), - .kr_sendpiosize = IPATH_KREG_OFFSET(SendPIOSize), - .kr_sendregbase = IPATH_KREG_OFFSET(SendRegBase), - .kr_txintmembase = IPATH_KREG_OFFSET(TxIntMemBase), - .kr_txintmemsize = IPATH_KREG_OFFSET(TxIntMemSize), - .kr_userregbase = IPATH_KREG_OFFSET(UserRegBase), - .kr_serdesconfig0 = IPATH_KREG_OFFSET(SerdesConfig0), - .kr_serdesconfig1 = IPATH_KREG_OFFSET(SerdesConfig1), - .kr_serdesstatus = IPATH_KREG_OFFSET(SerdesStatus), - .kr_xgxsconfig = IPATH_KREG_OFFSET(XGXSConfig), - /* - * These should not be used directly via ipath_read_kreg64(), - * use them with ipath_read_kreg64_port(), - */ - .kr_rcvhdraddr = IPATH_KREG_OFFSET(RcvHdrAddr0), - .kr_rcvhdrtailaddr = IPATH_KREG_OFFSET(RcvHdrTailAddr0) -}; - -static const struct ipath_cregs ipath_ht_cregs = { - .cr_badformatcnt = IPATH_CREG_OFFSET(RxBadFormatCnt), - .cr_erricrccnt = IPATH_CREG_OFFSET(RxICRCErrCnt), - .cr_errlinkcnt = IPATH_CREG_OFFSET(RxLinkProblemCnt), - .cr_errlpcrccnt = IPATH_CREG_OFFSET(RxLPCRCErrCnt), - .cr_errpkey = IPATH_CREG_OFFSET(RxPKeyMismatchCnt), - .cr_errrcvflowctrlcnt = IPATH_CREG_OFFSET(RxFlowCtrlErrCnt), - .cr_err_rlencnt = IPATH_CREG_OFFSET(RxLenErrCnt), - .cr_errslencnt = IPATH_CREG_OFFSET(TxLenErrCnt), - .cr_errtidfull = IPATH_CREG_OFFSET(RxTIDFullErrCnt), - .cr_errtidvalid = IPATH_CREG_OFFSET(RxTIDValidErrCnt), - .cr_errvcrccnt = IPATH_CREG_OFFSET(RxVCRCErrCnt), - .cr_ibstatuschange = IPATH_CREG_OFFSET(IBStatusChangeCnt), - /* calc from Reg_CounterRegBase + offset */ - .cr_intcnt = IPATH_CREG_OFFSET(LBIntCnt), - .cr_invalidrlencnt = IPATH_CREG_OFFSET(RxMaxMinLenErrCnt), - .cr_invalidslencnt = IPATH_CREG_OFFSET(TxMaxMinLenErrCnt), - .cr_lbflowstallcnt = IPATH_CREG_OFFSET(LBFlowStallCnt), - .cr_pktrcvcnt = IPATH_CREG_OFFSET(RxDataPktCnt), - .cr_pktrcvflowctrlcnt = IPATH_CREG_OFFSET(RxFlowPktCnt), - .cr_pktsendcnt = IPATH_CREG_OFFSET(TxDataPktCnt), - .cr_pktsendflowcnt = IPATH_CREG_OFFSET(TxFlowPktCnt), - .cr_portovflcnt = IPATH_CREG_OFFSET(RxP0HdrEgrOvflCnt), - .cr_rcvebpcnt = IPATH_CREG_OFFSET(RxEBPCnt), - .cr_rcvovflcnt = IPATH_CREG_OFFSET(RxBufOvflCnt), - .cr_senddropped = IPATH_CREG_OFFSET(TxDroppedPktCnt), - .cr_sendstallcnt = IPATH_CREG_OFFSET(TxFlowStallCnt), - .cr_sendunderruncnt = IPATH_CREG_OFFSET(TxUnderrunCnt), - .cr_wordrcvcnt = IPATH_CREG_OFFSET(RxDwordCnt), - .cr_wordsendcnt = IPATH_CREG_OFFSET(TxDwordCnt), - .cr_unsupvlcnt = IPATH_CREG_OFFSET(TxUnsupVLErrCnt), - .cr_rxdroppktcnt = IPATH_CREG_OFFSET(RxDroppedPktCnt), - .cr_iblinkerrrecovcnt = IPATH_CREG_OFFSET(IBLinkErrRecoveryCnt), - .cr_iblinkdowncnt = IPATH_CREG_OFFSET(IBLinkDownedCnt), - .cr_ibsymbolerrcnt = IPATH_CREG_OFFSET(IBSymbolErrCnt) -}; - -/* kr_intstatus, kr_intclear, kr_intmask bits */ -#define INFINIPATH_I_RCVURG_MASK 0x1FF -#define INFINIPATH_I_RCVAVAIL_MASK 0x1FF - -/* kr_hwerrclear, kr_hwerrmask, kr_hwerrstatus, bits */ -#define INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT 0 -#define INFINIPATH_HWE_HTCMEMPARITYERR_MASK 0x3FFFFFULL -#define INFINIPATH_HWE_HTCLNKABYTE0CRCERR 0x0000000000800000ULL -#define INFINIPATH_HWE_HTCLNKABYTE1CRCERR 0x0000000001000000ULL -#define INFINIPATH_HWE_HTCLNKBBYTE0CRCERR 0x0000000002000000ULL -#define INFINIPATH_HWE_HTCLNKBBYTE1CRCERR 0x0000000004000000ULL -#define INFINIPATH_HWE_HTCMISCERR4 0x0000000008000000ULL -#define INFINIPATH_HWE_HTCMISCERR5 0x0000000010000000ULL -#define INFINIPATH_HWE_HTCMISCERR6 0x0000000020000000ULL -#define INFINIPATH_HWE_HTCMISCERR7 0x0000000040000000ULL -#define INFINIPATH_HWE_HTCBUSTREQPARITYERR 0x0000000080000000ULL -#define INFINIPATH_HWE_HTCBUSTRESPPARITYERR 0x0000000100000000ULL -#define INFINIPATH_HWE_HTCBUSIREQPARITYERR 0x0000000200000000ULL -#define INFINIPATH_HWE_COREPLL_FBSLIP 0x0080000000000000ULL -#define INFINIPATH_HWE_COREPLL_RFSLIP 0x0100000000000000ULL -#define INFINIPATH_HWE_HTBPLL_FBSLIP 0x0200000000000000ULL -#define INFINIPATH_HWE_HTBPLL_RFSLIP 0x0400000000000000ULL -#define INFINIPATH_HWE_HTAPLL_FBSLIP 0x0800000000000000ULL -#define INFINIPATH_HWE_HTAPLL_RFSLIP 0x1000000000000000ULL -#define INFINIPATH_HWE_SERDESPLLFAILED 0x2000000000000000ULL - -/* kr_extstatus bits */ -#define INFINIPATH_EXTS_FREQSEL 0x2 -#define INFINIPATH_EXTS_SERDESSEL 0x4 -#define INFINIPATH_EXTS_MEMBIST_ENDTEST 0x0000000000004000 -#define INFINIPATH_EXTS_MEMBIST_CORRECT 0x0000000000008000 - -/* - * masks and bits that are different in different chips, or present only - * in one - */ -static const ipath_err_t infinipath_hwe_htcmemparityerr_mask = - INFINIPATH_HWE_HTCMEMPARITYERR_MASK; -static const ipath_err_t infinipath_hwe_htcmemparityerr_shift = - INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT; - -static const ipath_err_t infinipath_hwe_htclnkabyte0crcerr = - INFINIPATH_HWE_HTCLNKABYTE0CRCERR; -static const ipath_err_t infinipath_hwe_htclnkabyte1crcerr = - INFINIPATH_HWE_HTCLNKABYTE1CRCERR; -static const ipath_err_t infinipath_hwe_htclnkbbyte0crcerr = - INFINIPATH_HWE_HTCLNKBBYTE0CRCERR; -static const ipath_err_t infinipath_hwe_htclnkbbyte1crcerr = - INFINIPATH_HWE_HTCLNKBBYTE1CRCERR; - -#define _IPATH_GPIO_SDA_NUM 1 -#define _IPATH_GPIO_SCL_NUM 0 - -#define IPATH_GPIO_SDA \ - (1ULL << (_IPATH_GPIO_SDA_NUM+INFINIPATH_EXTC_GPIOOE_SHIFT)) -#define IPATH_GPIO_SCL \ - (1ULL << (_IPATH_GPIO_SCL_NUM+INFINIPATH_EXTC_GPIOOE_SHIFT)) - -/* keep the code below somewhat more readonable; not used elsewhere */ -#define _IPATH_HTLINK0_CRCBITS (infinipath_hwe_htclnkabyte0crcerr | \ - infinipath_hwe_htclnkabyte1crcerr) -#define _IPATH_HTLINK1_CRCBITS (infinipath_hwe_htclnkbbyte0crcerr | \ - infinipath_hwe_htclnkbbyte1crcerr) -#define _IPATH_HTLANE0_CRCBITS (infinipath_hwe_htclnkabyte0crcerr | \ - infinipath_hwe_htclnkbbyte0crcerr) -#define _IPATH_HTLANE1_CRCBITS (infinipath_hwe_htclnkabyte1crcerr | \ - infinipath_hwe_htclnkbbyte1crcerr) - -static void hwerr_crcbits(struct ipath_devdata *dd, ipath_err_t hwerrs, - char *msg, size_t msgl) -{ - char bitsmsg[64]; - ipath_err_t crcbits = hwerrs & - (_IPATH_HTLINK0_CRCBITS | _IPATH_HTLINK1_CRCBITS); - /* don't check if 8bit HT */ - if (dd->ipath_flags & IPATH_8BIT_IN_HT0) - crcbits &= ~infinipath_hwe_htclnkabyte1crcerr; - /* don't check if 8bit HT */ - if (dd->ipath_flags & IPATH_8BIT_IN_HT1) - crcbits &= ~infinipath_hwe_htclnkbbyte1crcerr; - /* - * we'll want to ignore link errors on link that is - * not in use, if any. For now, complain about both - */ - if (crcbits) { - u16 ctrl0, ctrl1; - snprintf(bitsmsg, sizeof bitsmsg, - "[HT%s lane %s CRC (%llx); ignore till reload]", - !(crcbits & _IPATH_HTLINK1_CRCBITS) ? - "0 (A)" : (!(crcbits & _IPATH_HTLINK0_CRCBITS) - ? "1 (B)" : "0+1 (A+B)"), - !(crcbits & _IPATH_HTLANE1_CRCBITS) ? "0" - : (!(crcbits & _IPATH_HTLANE0_CRCBITS) ? "1" : - "0+1"), (unsigned long long) crcbits); - strlcat(msg, bitsmsg, msgl); - - /* - * print extra info for debugging. slave/primary - * config word 4, 8 (link control 0, 1) - */ - - if (pci_read_config_word(dd->pcidev, - dd->ipath_ht_slave_off + 0x4, - &ctrl0)) - dev_info(&dd->pcidev->dev, "Couldn't read " - "linkctrl0 of slave/primary " - "config block\n"); - else if (!(ctrl0 & 1 << 6)) - /* not if EOC bit set */ - ipath_dbg("HT linkctrl0 0x%x%s%s\n", ctrl0, - ((ctrl0 >> 8) & 7) ? " CRC" : "", - ((ctrl0 >> 4) & 1) ? "linkfail" : - ""); - if (pci_read_config_word(dd->pcidev, - dd->ipath_ht_slave_off + 0x8, - &ctrl1)) - dev_info(&dd->pcidev->dev, "Couldn't read " - "linkctrl1 of slave/primary " - "config block\n"); - else if (!(ctrl1 & 1 << 6)) - /* not if EOC bit set */ - ipath_dbg("HT linkctrl1 0x%x%s%s\n", ctrl1, - ((ctrl1 >> 8) & 7) ? " CRC" : "", - ((ctrl1 >> 4) & 1) ? "linkfail" : - ""); - - /* disable until driver reloaded */ - dd->ipath_hwerrmask &= ~crcbits; - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, - dd->ipath_hwerrmask); - ipath_dbg("HT crc errs: %s\n", msg); - } else - ipath_dbg("ignoring HT crc errors 0x%llx, " - "not in use\n", (unsigned long long) - (hwerrs & (_IPATH_HTLINK0_CRCBITS | - _IPATH_HTLINK1_CRCBITS))); -} - -/** - * ipath_ht_handle_hwerrors - display hardware errors - * @dd: the infinipath device - * @msg: the output buffer - * @msgl: the size of the output buffer - * - * Use same msg buffer as regular errors to avoid - * excessive stack use. Most hardware errors are catastrophic, but for - * right now, we'll print them and continue. - * We reuse the same message buffer as ipath_handle_errors() to avoid - * excessive stack usage. - */ -static void ipath_ht_handle_hwerrors(struct ipath_devdata *dd, char *msg, - size_t msgl) -{ - ipath_err_t hwerrs; - u32 bits, ctrl; - int isfatal = 0; - char bitsmsg[64]; - - hwerrs = ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus); - - if (!hwerrs) { - ipath_cdbg(VERBOSE, "Called but no hardware errors set\n"); - /* - * better than printing cofusing messages - * This seems to be related to clearing the crc error, or - * the pll error during init. - */ - goto bail; - } else if (hwerrs == -1LL) { - ipath_dev_err(dd, "Read of hardware error status failed " - "(all bits set); ignoring\n"); - goto bail; - } - ipath_stats.sps_hwerrs++; - - /* Always clear the error status register, except MEMBISTFAIL, - * regardless of whether we continue or stop using the chip. - * We want that set so we know it failed, even across driver reload. - * We'll still ignore it in the hwerrmask. We do this partly for - * diagnostics, but also for support */ - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrclear, - hwerrs&~INFINIPATH_HWE_MEMBISTFAILED); - - hwerrs &= dd->ipath_hwerrmask; - - /* - * make sure we get this much out, unless told to be quiet, - * or it's occurred within the last 5 seconds - */ - if ((hwerrs & ~dd->ipath_lasthwerror) || - (ipath_debug & __IPATH_VERBDBG)) - dev_info(&dd->pcidev->dev, "Hardware error: hwerr=0x%llx " - "(cleared)\n", (unsigned long long) hwerrs); - dd->ipath_lasthwerror |= hwerrs; - - if (hwerrs & ~infinipath_hwe_bitsextant) - ipath_dev_err(dd, "hwerror interrupt with unknown errors " - "%llx set\n", (unsigned long long) - (hwerrs & ~infinipath_hwe_bitsextant)); - - ctrl = ipath_read_kreg32(dd, dd->ipath_kregs->kr_control); - if (ctrl & INFINIPATH_C_FREEZEMODE) { - if (hwerrs) { - /* - * if any set that we aren't ignoring; only - * make the complaint once, in case it's stuck - * or recurring, and we get here multiple - * times. - */ - if (dd->ipath_flags & IPATH_INITTED) { - ipath_dev_err(dd, "Fatal Error (freeze " - "mode), no longer usable\n"); - isfatal = 1; - } - *dd->ipath_statusp &= ~IPATH_STATUS_IB_READY; - /* mark as having had error */ - *dd->ipath_statusp |= IPATH_STATUS_HWERROR; - /* - * mark as not usable, at a minimum until driver - * is reloaded, probably until reboot, since no - * other reset is possible. - */ - dd->ipath_flags &= ~IPATH_INITTED; - } else { - ipath_dbg("Clearing freezemode on ignored hardware " - "error\n"); - ctrl &= ~INFINIPATH_C_FREEZEMODE; - ipath_write_kreg(dd, dd->ipath_kregs->kr_control, - ctrl); - } - } - - *msg = '\0'; - - /* - * may someday want to decode into which bits are which - * functional area for parity errors, etc. - */ - if (hwerrs & (infinipath_hwe_htcmemparityerr_mask - << INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT)) { - bits = (u32) ((hwerrs >> - INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT) & - INFINIPATH_HWE_HTCMEMPARITYERR_MASK); - snprintf(bitsmsg, sizeof bitsmsg, "[HTC Parity Errs %x] ", - bits); - strlcat(msg, bitsmsg, msgl); - } - if (hwerrs & (INFINIPATH_HWE_RXEMEMPARITYERR_MASK - << INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT)) { - bits = (u32) ((hwerrs >> - INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT) & - INFINIPATH_HWE_RXEMEMPARITYERR_MASK); - snprintf(bitsmsg, sizeof bitsmsg, "[RXE Parity Errs %x] ", - bits); - strlcat(msg, bitsmsg, msgl); - } - if (hwerrs & (INFINIPATH_HWE_TXEMEMPARITYERR_MASK - << INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT)) { - bits = (u32) ((hwerrs >> - INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT) & - INFINIPATH_HWE_TXEMEMPARITYERR_MASK); - snprintf(bitsmsg, sizeof bitsmsg, "[TXE Parity Errs %x] ", - bits); - strlcat(msg, bitsmsg, msgl); - } - if (hwerrs & INFINIPATH_HWE_IBCBUSTOSPCPARITYERR) - strlcat(msg, "[IB2IPATH Parity]", msgl); - if (hwerrs & INFINIPATH_HWE_IBCBUSFRSPCPARITYERR) - strlcat(msg, "[IPATH2IB Parity]", msgl); - if (hwerrs & INFINIPATH_HWE_HTCBUSIREQPARITYERR) - strlcat(msg, "[HTC Ireq Parity]", msgl); - if (hwerrs & INFINIPATH_HWE_HTCBUSTREQPARITYERR) - strlcat(msg, "[HTC Treq Parity]", msgl); - if (hwerrs & INFINIPATH_HWE_HTCBUSTRESPPARITYERR) - strlcat(msg, "[HTC Tresp Parity]", msgl); - - if (hwerrs & (_IPATH_HTLINK0_CRCBITS | _IPATH_HTLINK1_CRCBITS)) - hwerr_crcbits(dd, hwerrs, msg, msgl); - - if (hwerrs & INFINIPATH_HWE_HTCMISCERR5) - strlcat(msg, "[HT core Misc5]", msgl); - if (hwerrs & INFINIPATH_HWE_HTCMISCERR6) - strlcat(msg, "[HT core Misc6]", msgl); - if (hwerrs & INFINIPATH_HWE_HTCMISCERR7) - strlcat(msg, "[HT core Misc7]", msgl); - if (hwerrs & INFINIPATH_HWE_MEMBISTFAILED) { - strlcat(msg, "[Memory BIST test failed, HT-400 unusable]", - msgl); - /* ignore from now on, so disable until driver reloaded */ - dd->ipath_hwerrmask &= ~INFINIPATH_HWE_MEMBISTFAILED; - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, - dd->ipath_hwerrmask); - } -#define _IPATH_PLL_FAIL (INFINIPATH_HWE_COREPLL_FBSLIP | \ - INFINIPATH_HWE_COREPLL_RFSLIP | \ - INFINIPATH_HWE_HTBPLL_FBSLIP | \ - INFINIPATH_HWE_HTBPLL_RFSLIP | \ - INFINIPATH_HWE_HTAPLL_FBSLIP | \ - INFINIPATH_HWE_HTAPLL_RFSLIP) - - if (hwerrs & _IPATH_PLL_FAIL) { - snprintf(bitsmsg, sizeof bitsmsg, - "[PLL failed (%llx), HT-400 unusable]", - (unsigned long long) (hwerrs & _IPATH_PLL_FAIL)); - strlcat(msg, bitsmsg, msgl); - /* ignore from now on, so disable until driver reloaded */ - dd->ipath_hwerrmask &= ~(hwerrs & _IPATH_PLL_FAIL); - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, - dd->ipath_hwerrmask); - } - - if (hwerrs & INFINIPATH_HWE_SERDESPLLFAILED) { - /* - * If it occurs, it is left masked since the eternal - * interface is unused - */ - dd->ipath_hwerrmask &= ~INFINIPATH_HWE_SERDESPLLFAILED; - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, - dd->ipath_hwerrmask); - } - - if (hwerrs & INFINIPATH_HWE_RXDSYNCMEMPARITYERR) - strlcat(msg, "[Rx Dsync]", msgl); - if (hwerrs & INFINIPATH_HWE_SERDESPLLFAILED) - strlcat(msg, "[SerDes PLL]", msgl); - - ipath_dev_err(dd, "%s hardware error\n", msg); - if (isfatal && !ipath_diag_inuse && dd->ipath_freezemsg) - /* - * for status file; if no trailing brace is copied, - * we'll know it was truncated. - */ - snprintf(dd->ipath_freezemsg, - dd->ipath_freezelen, "{%s}", msg); - -bail:; -} - -/** - * ipath_ht_boardname - fill in the board name - * @dd: the infinipath device - * @name: the output buffer - * @namelen: the size of the output buffer - * - * fill in the board name, based on the board revision register - */ -static int ipath_ht_boardname(struct ipath_devdata *dd, char *name, - size_t namelen) -{ - char *n = NULL; - u8 boardrev = dd->ipath_boardrev; - int ret; - - switch (boardrev) { - case 4: /* Ponderosa is one of the bringup boards */ - n = "Ponderosa"; - break; - case 5: - /* - * HT-460 original production board; two production levels, with - * different serial number ranges. See ipath_ht_early_init() for - * case where we enable IPATH_GPIO_INTR for later serial # range. - */ - n = "InfiniPath_HT-460"; - break; - case 6: - n = "OEM_Board_3"; - break; - case 7: - /* HT-460 small form factor production board */ - n = "InfiniPath_HT-465"; - break; - case 8: - n = "LS/X-1"; - break; - case 9: /* Comstock bringup test board */ - n = "Comstock"; - break; - case 10: - n = "OEM_Board_2"; - break; - case 11: - n = "InfiniPath_HT-470"; - break; - case 12: - n = "OEM_Board_4"; - break; - default: /* don't know, just print the number */ - ipath_dev_err(dd, "Don't yet know about board " - "with ID %u\n", boardrev); - snprintf(name, namelen, "Unknown_InfiniPath_HT-4xx_%u", - boardrev); - break; - } - if (n) - snprintf(name, namelen, "%s", n); - - if (dd->ipath_majrev != 3 || (dd->ipath_minrev < 2 || dd->ipath_minrev > 3)) { - /* - * This version of the driver only supports the HT-400 - * Rev 3.2 - */ - ipath_dev_err(dd, - "Unsupported HT-400 revision %u.%u!\n", - dd->ipath_majrev, dd->ipath_minrev); - ret = 1; - goto bail; - } - /* - * pkt/word counters are 32 bit, and therefore wrap fast enough - * that we snapshot them from a timer, and maintain 64 bit shadow - * copies - */ - dd->ipath_flags |= IPATH_32BITCOUNTERS; - if (dd->ipath_htspeed != 800) - ipath_dev_err(dd, - "Incorrectly configured for HT @ %uMHz\n", - dd->ipath_htspeed); - if (dd->ipath_boardrev == 7 || dd->ipath_boardrev == 11 || - dd->ipath_boardrev == 6) - dd->ipath_flags |= IPATH_GPIO_INTR; - else - dd->ipath_flags |= IPATH_POLL_RX_INTR; - if (dd->ipath_boardrev == 8) { /* LS/X-1 */ - u64 val; - val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_extstatus); - if (val & INFINIPATH_EXTS_SERDESSEL) { - /* - * hardware disabled - * - * This means that the chip is hardware disabled, - * and will not be able to bring up the link, - * in any case. We special case this and abort - * early, to avoid later messages. We also set - * the DISABLED status bit - */ - ipath_dbg("Unit %u is hardware-disabled\n", - dd->ipath_unit); - *dd->ipath_statusp |= IPATH_STATUS_DISABLED; - /* this value is handled differently */ - ret = 2; - goto bail; - } - } - ret = 0; - -bail: - return ret; -} - -static void ipath_check_htlink(struct ipath_devdata *dd) -{ - u8 linkerr, link_off, i; - - for (i = 0; i < 2; i++) { - link_off = dd->ipath_ht_slave_off + i * 4 + 0xd; - if (pci_read_config_byte(dd->pcidev, link_off, &linkerr)) - dev_info(&dd->pcidev->dev, "Couldn't read " - "linkerror%d of HT slave/primary block\n", - i); - else if (linkerr & 0xf0) { - ipath_cdbg(VERBOSE, "HT linkerr%d bits 0x%x set, " - "clearing\n", linkerr >> 4, i); - /* - * writing the linkerr bits that are set should - * clear them - */ - if (pci_write_config_byte(dd->pcidev, link_off, - linkerr)) - ipath_dbg("Failed write to clear HT " - "linkerror%d\n", i); - if (pci_read_config_byte(dd->pcidev, link_off, - &linkerr)) - dev_info(&dd->pcidev->dev, - "Couldn't reread linkerror%d of " - "HT slave/primary block\n", i); - else if (linkerr & 0xf0) - dev_info(&dd->pcidev->dev, - "HT linkerror%d bits 0x%x " - "couldn't be cleared\n", - i, linkerr >> 4); - } - } -} - -static int ipath_setup_ht_reset(struct ipath_devdata *dd) -{ - ipath_dbg("No reset possible for HT-400\n"); - return 0; -} - -#define HT_CAPABILITY_ID 0x08 /* HT capabilities not defined in kernel */ -#define HT_INTR_DISC_CONFIG 0x80 /* HT interrupt and discovery cap */ -#define HT_INTR_REG_INDEX 2 /* intconfig requires indirect accesses */ - -/* - * Bits 13-15 of command==0 is slave/primary block. Clear any HT CRC - * errors. We only bother to do this at load time, because it's OK if - * it happened before we were loaded (first time after boot/reset), - * but any time after that, it's fatal anyway. Also need to not check - * for for upper byte errors if we are in 8 bit mode, so figure out - * our width. For now, at least, also complain if it's 8 bit. - */ -static void slave_or_pri_blk(struct ipath_devdata *dd, struct pci_dev *pdev, - int pos, u8 cap_type) -{ - u8 linkwidth = 0, linkerr, link_a_b_off, link_off; - u16 linkctrl = 0; - int i; - - dd->ipath_ht_slave_off = pos; - /* command word, master_host bit */ - /* master host || slave */ - if ((cap_type >> 2) & 1) - link_a_b_off = 4; - else - link_a_b_off = 0; - ipath_cdbg(VERBOSE, "HT%u (Link %c) connected to processor\n", - link_a_b_off ? 1 : 0, - link_a_b_off ? 'B' : 'A'); - - link_a_b_off += pos; - - /* - * check both link control registers; clear both HT CRC sets if - * necessary. - */ - for (i = 0; i < 2; i++) { - link_off = pos + i * 4 + 0x4; - if (pci_read_config_word(pdev, link_off, &linkctrl)) - ipath_dev_err(dd, "Couldn't read HT link control%d " - "register\n", i); - else if (linkctrl & (0xf << 8)) { - ipath_cdbg(VERBOSE, "Clear linkctrl%d CRC Error " - "bits %x\n", i, linkctrl & (0xf << 8)); - /* - * now write them back to clear the error. - */ - pci_write_config_byte(pdev, link_off, - linkctrl & (0xf << 8)); - } - } - - /* - * As with HT CRC bits, same for protocol errors that might occur - * during boot. - */ - for (i = 0; i < 2; i++) { - link_off = pos + i * 4 + 0xd; - if (pci_read_config_byte(pdev, link_off, &linkerr)) - dev_info(&pdev->dev, "Couldn't read linkerror%d " - "of HT slave/primary block\n", i); - else if (linkerr & 0xf0) { - ipath_cdbg(VERBOSE, "HT linkerr%d bits 0x%x set, " - "clearing\n", linkerr >> 4, i); - /* - * writing the linkerr bits that are set will clear - * them - */ - if (pci_write_config_byte - (pdev, link_off, linkerr)) - ipath_dbg("Failed write to clear HT " - "linkerror%d\n", i); - if (pci_read_config_byte(pdev, link_off, &linkerr)) - dev_info(&pdev->dev, "Couldn't reread " - "linkerror%d of HT slave/primary " - "block\n", i); - else if (linkerr & 0xf0) - dev_info(&pdev->dev, "HT linkerror%d bits " - "0x%x couldn't be cleared\n", - i, linkerr >> 4); - } - } - - /* - * this is just for our link to the host, not devices connected - * through tunnel. - */ - - if (pci_read_config_byte(pdev, link_a_b_off + 7, &linkwidth)) - ipath_dev_err(dd, "Couldn't read HT link width " - "config register\n"); - else { - u32 width; - switch (linkwidth & 7) { - case 5: - width = 4; - break; - case 4: - width = 2; - break; - case 3: - width = 32; - break; - case 1: - width = 16; - break; - case 0: - default: /* if wrong, assume 8 bit */ - width = 8; - break; - } - - dd->ipath_htwidth = width; - - if (linkwidth != 0x11) { - ipath_dev_err(dd, "Not configured for 16 bit HT " - "(%x)\n", linkwidth); - if (!(linkwidth & 0xf)) { - ipath_dbg("Will ignore HT lane1 errors\n"); - dd->ipath_flags |= IPATH_8BIT_IN_HT0; - } - } - } - - /* - * this is just for our link to the host, not devices connected - * through tunnel. - */ - if (pci_read_config_byte(pdev, link_a_b_off + 0xd, &linkwidth)) - ipath_dev_err(dd, "Couldn't read HT link frequency " - "config register\n"); - else { - u32 speed; - switch (linkwidth & 0xf) { - case 6: - speed = 1000; - break; - case 5: - speed = 800; - break; - case 4: - speed = 600; - break; - case 3: - speed = 500; - break; - case 2: - speed = 400; - break; - case 1: - speed = 300; - break; - default: - /* - * assume reserved and vendor-specific are 200... - */ - case 0: - speed = 200; - break; - } - dd->ipath_htspeed = speed; - } -} - -static int set_int_handler(struct ipath_devdata *dd, struct pci_dev *pdev, - int pos) -{ - u32 int_handler_addr_lower; - u32 int_handler_addr_upper; - u64 ihandler; - u32 intvec; - - /* use indirection register to get the intr handler */ - pci_write_config_byte(pdev, pos + HT_INTR_REG_INDEX, 0x10); - pci_read_config_dword(pdev, pos + 4, &int_handler_addr_lower); - pci_write_config_byte(pdev, pos + HT_INTR_REG_INDEX, 0x11); - pci_read_config_dword(pdev, pos + 4, &int_handler_addr_upper); - - ihandler = (u64) int_handler_addr_lower | - ((u64) int_handler_addr_upper << 32); - - /* - * kernels with CONFIG_PCI_MSI set the vector in the irq field of - * struct pci_device, so we use that to program the HT-400 internal - * interrupt register (not config space) with that value. The BIOS - * must still have done the basic MSI setup. - */ - intvec = pdev->irq; - /* - * clear any vector bits there; normally not set but we'll overload - * this for some debug purposes (setting the HTC debug register - * value from software, rather than GPIOs), so it might be set on a - * driver reload. - */ - ihandler &= ~0xff0000; - /* x86 vector goes in intrinfo[23:16] */ - ihandler |= intvec << 16; - ipath_cdbg(VERBOSE, "ihandler lower %x, upper %x, intvec %x, " - "interruptconfig %llx\n", int_handler_addr_lower, - int_handler_addr_upper, intvec, - (unsigned long long) ihandler); - - /* can't program yet, so save for interrupt setup */ - dd->ipath_intconfig = ihandler; - /* keep going, so we find link control stuff also */ - - return ihandler != 0; -} - -/** - * ipath_setup_ht_config - setup the interruptconfig register - * @dd: the infinipath device - * @pdev: the PCI device - * - * setup the interruptconfig register from the HT config info. - * Also clear CRC errors in HT linkcontrol, if necessary. - * This is done only for the real hardware. It is done before - * chip address space is initted, so can't touch infinipath registers - */ -static int ipath_setup_ht_config(struct ipath_devdata *dd, - struct pci_dev *pdev) -{ - int pos, ret = 0; - int ihandler = 0; - - /* - * Read the capability info to find the interrupt info, and also - * handle clearing CRC errors in linkctrl register if necessary. We - * do this early, before we ever enable errors or hardware errors, - * mostly to avoid causing the chip to enter freeze mode. - */ - pos = pci_find_capability(pdev, HT_CAPABILITY_ID); - if (!pos) { - ipath_dev_err(dd, "Couldn't find HyperTransport " - "capability; no interrupts\n"); - ret = -ENODEV; - goto bail; - } - do { - u8 cap_type; - - /* the HT capability type byte is 3 bytes after the - * capability byte. - */ - if (pci_read_config_byte(pdev, pos + 3, &cap_type)) { - dev_info(&pdev->dev, "Couldn't read config " - "command @ %d\n", pos); - continue; - } - if (!(cap_type & 0xE0)) - slave_or_pri_blk(dd, pdev, pos, cap_type); - else if (cap_type == HT_INTR_DISC_CONFIG) - ihandler = set_int_handler(dd, pdev, pos); - } while ((pos = pci_find_next_capability(pdev, pos, - HT_CAPABILITY_ID))); - - if (!ihandler) { - ipath_dev_err(dd, "Couldn't find interrupt handler in " - "config space\n"); - ret = -ENODEV; - } - -bail: - return ret; -} - -/** - * ipath_setup_ht_cleanup - clean up any per-chip chip-specific stuff - * @dd: the infinipath device - * - * Called during driver unload. - * This is currently a nop for the HT-400, not for all chips - */ -static void ipath_setup_ht_cleanup(struct ipath_devdata *dd) -{ -} - -/** - * ipath_setup_ht_setextled - set the state of the two external LEDs - * @dd: the infinipath device - * @lst: the L state - * @ltst: the LT state - * - * Set the state of the two external LEDs, to indicate physical and - * logical state of IB link. For this chip (at least with recommended - * board pinouts), LED1 is Green (physical state), and LED2 is Yellow - * (logical state) - * - * Note: We try to match the Mellanox HCA LED behavior as best - * we can. Green indicates physical link state is OK (something is - * plugged in, and we can train). - * Amber indicates the link is logically up (ACTIVE). - * Mellanox further blinks the amber LED to indicate data packet - * activity, but we have no hardware support for that, so it would - * require waking up every 10-20 msecs and checking the counters - * on the chip, and then turning the LED off if appropriate. That's - * visible overhead, so not something we will do. - * - */ -static void ipath_setup_ht_setextled(struct ipath_devdata *dd, - u64 lst, u64 ltst) -{ - u64 extctl; - - /* the diags use the LED to indicate diag info, so we leave - * the external LED alone when the diags are running */ - if (ipath_diag_inuse) - return; - - /* - * start by setting both LED control bits to off, then turn - * on the appropriate bit(s). - */ - if (dd->ipath_boardrev == 8) { /* LS/X-1 uses different pins */ - /* - * major difference is that INFINIPATH_EXTC_LEDGBLERR_OFF - * is inverted, because it is normally used to indicate - * a hardware fault at reset, if there were errors - */ - extctl = (dd->ipath_extctrl & ~INFINIPATH_EXTC_LEDGBLOK_ON) - | INFINIPATH_EXTC_LEDGBLERR_OFF; - if (ltst == INFINIPATH_IBCS_LT_STATE_LINKUP) - extctl &= ~INFINIPATH_EXTC_LEDGBLERR_OFF; - if (lst == INFINIPATH_IBCS_L_STATE_ACTIVE) - extctl |= INFINIPATH_EXTC_LEDGBLOK_ON; - } - else { - extctl = dd->ipath_extctrl & - ~(INFINIPATH_EXTC_LED1PRIPORT_ON | - INFINIPATH_EXTC_LED2PRIPORT_ON); - if (ltst == INFINIPATH_IBCS_LT_STATE_LINKUP) - extctl |= INFINIPATH_EXTC_LED1PRIPORT_ON; - if (lst == INFINIPATH_IBCS_L_STATE_ACTIVE) - extctl |= INFINIPATH_EXTC_LED2PRIPORT_ON; - } - dd->ipath_extctrl = extctl; - ipath_write_kreg(dd, dd->ipath_kregs->kr_extctrl, extctl); -} - -static void ipath_init_ht_variables(void) -{ - ipath_gpio_sda_num = _IPATH_GPIO_SDA_NUM; - ipath_gpio_scl_num = _IPATH_GPIO_SCL_NUM; - ipath_gpio_sda = IPATH_GPIO_SDA; - ipath_gpio_scl = IPATH_GPIO_SCL; - - infinipath_i_bitsextant = - (INFINIPATH_I_RCVURG_MASK << INFINIPATH_I_RCVURG_SHIFT) | - (INFINIPATH_I_RCVAVAIL_MASK << - INFINIPATH_I_RCVAVAIL_SHIFT) | - INFINIPATH_I_ERROR | INFINIPATH_I_SPIOSENT | - INFINIPATH_I_SPIOBUFAVAIL | INFINIPATH_I_GPIO; - - infinipath_e_bitsextant = - INFINIPATH_E_RFORMATERR | INFINIPATH_E_RVCRC | - INFINIPATH_E_RICRC | INFINIPATH_E_RMINPKTLEN | - INFINIPATH_E_RMAXPKTLEN | INFINIPATH_E_RLONGPKTLEN | - INFINIPATH_E_RSHORTPKTLEN | INFINIPATH_E_RUNEXPCHAR | - INFINIPATH_E_RUNSUPVL | INFINIPATH_E_REBP | - INFINIPATH_E_RIBFLOW | INFINIPATH_E_RBADVERSION | - INFINIPATH_E_RRCVEGRFULL | INFINIPATH_E_RRCVHDRFULL | - INFINIPATH_E_RBADTID | INFINIPATH_E_RHDRLEN | - INFINIPATH_E_RHDR | INFINIPATH_E_RIBLOSTLINK | - INFINIPATH_E_SMINPKTLEN | INFINIPATH_E_SMAXPKTLEN | - INFINIPATH_E_SUNDERRUN | INFINIPATH_E_SPKTLEN | - INFINIPATH_E_SDROPPEDSMPPKT | INFINIPATH_E_SDROPPEDDATAPKT | - INFINIPATH_E_SPIOARMLAUNCH | INFINIPATH_E_SUNEXPERRPKTNUM | - INFINIPATH_E_SUNSUPVL | INFINIPATH_E_IBSTATUSCHANGED | - INFINIPATH_E_INVALIDADDR | INFINIPATH_E_RESET | - INFINIPATH_E_HARDWARE; - - infinipath_hwe_bitsextant = - (INFINIPATH_HWE_HTCMEMPARITYERR_MASK << - INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT) | - (INFINIPATH_HWE_TXEMEMPARITYERR_MASK << - INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT) | - (INFINIPATH_HWE_RXEMEMPARITYERR_MASK << - INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT) | - INFINIPATH_HWE_HTCLNKABYTE0CRCERR | - INFINIPATH_HWE_HTCLNKABYTE1CRCERR | - INFINIPATH_HWE_HTCLNKBBYTE0CRCERR | - INFINIPATH_HWE_HTCLNKBBYTE1CRCERR | - INFINIPATH_HWE_HTCMISCERR4 | - INFINIPATH_HWE_HTCMISCERR5 | INFINIPATH_HWE_HTCMISCERR6 | - INFINIPATH_HWE_HTCMISCERR7 | - INFINIPATH_HWE_HTCBUSTREQPARITYERR | - INFINIPATH_HWE_HTCBUSTRESPPARITYERR | - INFINIPATH_HWE_HTCBUSIREQPARITYERR | - INFINIPATH_HWE_RXDSYNCMEMPARITYERR | - INFINIPATH_HWE_MEMBISTFAILED | - INFINIPATH_HWE_COREPLL_FBSLIP | - INFINIPATH_HWE_COREPLL_RFSLIP | - INFINIPATH_HWE_HTBPLL_FBSLIP | - INFINIPATH_HWE_HTBPLL_RFSLIP | - INFINIPATH_HWE_HTAPLL_FBSLIP | - INFINIPATH_HWE_HTAPLL_RFSLIP | - INFINIPATH_HWE_SERDESPLLFAILED | - INFINIPATH_HWE_IBCBUSTOSPCPARITYERR | - INFINIPATH_HWE_IBCBUSFRSPCPARITYERR; - - infinipath_i_rcvavail_mask = INFINIPATH_I_RCVAVAIL_MASK; - infinipath_i_rcvurg_mask = INFINIPATH_I_RCVURG_MASK; -} - -/** - * ipath_ht_init_hwerrors - enable hardware errors - * @dd: the infinipath device - * - * now that we have finished initializing everything that might reasonably - * cause a hardware error, and cleared those errors bits as they occur, - * we can enable hardware errors in the mask (potentially enabling - * freeze mode), and enable hardware errors as errors (along with - * everything else) in errormask - */ -static void ipath_ht_init_hwerrors(struct ipath_devdata *dd) -{ - ipath_err_t val; - u64 extsval; - - extsval = ipath_read_kreg64(dd, dd->ipath_kregs->kr_extstatus); - - if (!(extsval & INFINIPATH_EXTS_MEMBIST_ENDTEST)) - ipath_dev_err(dd, "MemBIST did not complete!\n"); - - ipath_check_htlink(dd); - - /* barring bugs, all hwerrors become interrupts, which can */ - val = -1LL; - /* don't look at crc lane1 if 8 bit */ - if (dd->ipath_flags & IPATH_8BIT_IN_HT0) - val &= ~infinipath_hwe_htclnkabyte1crcerr; - /* don't look at crc lane1 if 8 bit */ - if (dd->ipath_flags & IPATH_8BIT_IN_HT1) - val &= ~infinipath_hwe_htclnkbbyte1crcerr; - - /* - * disable RXDSYNCMEMPARITY because external serdes is unused, - * and therefore the logic will never be used or initialized, - * and uninitialized state will normally result in this error - * being asserted. Similarly for the external serdess pll - * lock signal. - */ - val &= ~(INFINIPATH_HWE_SERDESPLLFAILED | - INFINIPATH_HWE_RXDSYNCMEMPARITYERR); - - /* - * Disable MISCERR4 because of an inversion in the HT core - * logic checking for errors that cause this bit to be set. - * The errata can also cause the protocol error bit to be set - * in the HT config space linkerror register(s). - */ - val &= ~INFINIPATH_HWE_HTCMISCERR4; - - /* - * PLL ignored because MDIO interface has a logic problem - * for reads, on Comstock and Ponderosa. BRINGUP - */ - if (dd->ipath_boardrev == 4 || dd->ipath_boardrev == 9) - val &= ~INFINIPATH_HWE_SERDESPLLFAILED; - dd->ipath_hwerrmask = val; -} - -/** - * ipath_ht_bringup_serdes - bring up the serdes - * @dd: the infinipath device - */ -static int ipath_ht_bringup_serdes(struct ipath_devdata *dd) -{ - u64 val, config1; - int ret = 0, change = 0; - - ipath_dbg("Trying to bringup serdes\n"); - - if (ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus) & - INFINIPATH_HWE_SERDESPLLFAILED) - { - ipath_dbg("At start, serdes PLL failed bit set in " - "hwerrstatus, clearing and continuing\n"); - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrclear, - INFINIPATH_HWE_SERDESPLLFAILED); - } - - val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0); - config1 = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig1); - - ipath_cdbg(VERBOSE, "Initial serdes status is config0=%llx " - "config1=%llx, sstatus=%llx xgxs %llx\n", - (unsigned long long) val, (unsigned long long) config1, - (unsigned long long) - ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesstatus), - (unsigned long long) - ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig)); - - /* force reset on */ - val |= INFINIPATH_SERDC0_RESET_PLL - /* | INFINIPATH_SERDC0_RESET_MASK */ - ; - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); - udelay(15); /* need pll reset set at least for a bit */ - - if (val & INFINIPATH_SERDC0_RESET_PLL) { - u64 val2 = val &= ~INFINIPATH_SERDC0_RESET_PLL; - /* set lane resets, and tx idle, during pll reset */ - val2 |= INFINIPATH_SERDC0_RESET_MASK | - INFINIPATH_SERDC0_TXIDLE; - ipath_cdbg(VERBOSE, "Clearing serdes PLL reset (writing " - "%llx)\n", (unsigned long long) val2); - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, - val2); - /* - * be sure chip saw it - */ - val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); - /* - * need pll reset clear at least 11 usec before lane - * resets cleared; give it a few more - */ - udelay(15); - val = val2; /* for check below */ - } - - if (val & (INFINIPATH_SERDC0_RESET_PLL | - INFINIPATH_SERDC0_RESET_MASK | - INFINIPATH_SERDC0_TXIDLE)) { - val &= ~(INFINIPATH_SERDC0_RESET_PLL | - INFINIPATH_SERDC0_RESET_MASK | - INFINIPATH_SERDC0_TXIDLE); - /* clear them */ - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, - val); - } - - val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig); - if (((val >> INFINIPATH_XGXS_MDIOADDR_SHIFT) & - INFINIPATH_XGXS_MDIOADDR_MASK) != 3) { - val &= ~(INFINIPATH_XGXS_MDIOADDR_MASK << - INFINIPATH_XGXS_MDIOADDR_SHIFT); - /* - * we use address 3 - */ - val |= 3ULL << INFINIPATH_XGXS_MDIOADDR_SHIFT; - change = 1; - } - if (val & INFINIPATH_XGXS_RESET) { - /* normally true after boot */ - val &= ~INFINIPATH_XGXS_RESET; - change = 1; - } - if (change) - ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val); - - val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0); - - /* clear current and de-emphasis bits */ - config1 &= ~0x0ffffffff00ULL; - /* set current to 20ma */ - config1 |= 0x00000000000ULL; - /* set de-emphasis to -5.68dB */ - config1 |= 0x0cccc000000ULL; - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig1, config1); - - ipath_cdbg(VERBOSE, "After setup: serdes status is config0=%llx " - "config1=%llx, sstatus=%llx xgxs %llx\n", - (unsigned long long) val, (unsigned long long) config1, - (unsigned long long) - ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesstatus), - (unsigned long long) - ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig)); - - if (!ipath_waitfor_mdio_cmdready(dd)) { - ipath_write_kreg(dd, dd->ipath_kregs->kr_mdio, - ipath_mdio_req(IPATH_MDIO_CMD_READ, 31, - IPATH_MDIO_CTRL_XGXS_REG_8, - 0)); - if (ipath_waitfor_complete(dd, dd->ipath_kregs->kr_mdio, - IPATH_MDIO_DATAVALID, &val)) - ipath_dbg("Never got MDIO data for XGXS status " - "read\n"); - else - ipath_cdbg(VERBOSE, "MDIO Read reg8, " - "'bank' 31 %x\n", (u32) val); - } else - ipath_dbg("Never got MDIO cmdready for XGXS status read\n"); - - return ret; /* for now, say we always succeeded */ -} - -/** - * ipath_ht_quiet_serdes - set serdes to txidle - * @dd: the infinipath device - * driver is being unloaded - */ -static void ipath_ht_quiet_serdes(struct ipath_devdata *dd) -{ - u64 val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0); - - val |= INFINIPATH_SERDC0_TXIDLE; - ipath_dbg("Setting TxIdleEn on serdes (config0 = %llx)\n", - (unsigned long long) val); - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); -} - -static int ipath_ht_intconfig(struct ipath_devdata *dd) -{ - int ret; - - if (!dd->ipath_intconfig) { - ipath_dev_err(dd, "No interrupts enabled, couldn't setup " - "interrupt address\n"); - ret = 1; - goto bail; - } - - ipath_write_kreg(dd, dd->ipath_kregs->kr_interruptconfig, - dd->ipath_intconfig); /* interrupt address */ - ret = 0; - -bail: - return ret; -} - -/** - * ipath_pe_put_tid - write a TID in chip - * @dd: the infinipath device - * @tidptr: pointer to the expected TID (in chip) to udpate - * @tidtype: 0 for eager, 1 for expected - * @pa: physical address of in memory buffer; ipath_tidinvalid if freeing - * - * This exists as a separate routine to allow for special locking etc. - * It's used for both the full cleanup on exit, as well as the normal - * setup and teardown. - */ -static void ipath_ht_put_tid(struct ipath_devdata *dd, - u64 __iomem *tidptr, u32 type, - unsigned long pa) -{ - if (pa != dd->ipath_tidinvalid) { - if (unlikely((pa & ~INFINIPATH_RT_ADDR_MASK))) { - dev_info(&dd->pcidev->dev, - "physaddr %lx has more than " - "40 bits, using only 40!!!\n", pa); - pa &= INFINIPATH_RT_ADDR_MASK; - } - if (type == 0) - pa |= dd->ipath_tidtemplate; - else { - /* in words (fixed, full page). */ - u64 lenvalid = PAGE_SIZE >> 2; - lenvalid <<= INFINIPATH_RT_BUFSIZE_SHIFT; - pa |= lenvalid | INFINIPATH_RT_VALID; - } - } - if (dd->ipath_kregbase) - writeq(pa, tidptr); -} - -/** - * ipath_ht_clear_tid - clear all TID entries for a port, expected and eager - * @dd: the infinipath device - * @port: the port - * - * Used from ipath_close(), and at chip initialization. - */ -static void ipath_ht_clear_tids(struct ipath_devdata *dd, unsigned port) -{ - u64 __iomem *tidbase; - int i; - - if (!dd->ipath_kregbase) - return; - - ipath_cdbg(VERBOSE, "Invalidate TIDs for port %u\n", port); - - /* - * need to invalidate all of the expected TID entries for this - * port, so we don't have valid entries that might somehow get - * used (early in next use of this port, or through some bug) - */ - tidbase = (u64 __iomem *) ((char __iomem *)(dd->ipath_kregbase) + - dd->ipath_rcvtidbase + - port * dd->ipath_rcvtidcnt * - sizeof(*tidbase)); - for (i = 0; i < dd->ipath_rcvtidcnt; i++) - ipath_ht_put_tid(dd, &tidbase[i], 1, dd->ipath_tidinvalid); - - tidbase = (u64 __iomem *) ((char __iomem *)(dd->ipath_kregbase) + - dd->ipath_rcvegrbase + - port * dd->ipath_rcvegrcnt * - sizeof(*tidbase)); - - for (i = 0; i < dd->ipath_rcvegrcnt; i++) - ipath_ht_put_tid(dd, &tidbase[i], 0, dd->ipath_tidinvalid); -} - -/** - * ipath_ht_tidtemplate - setup constants for TID updates - * @dd: the infinipath device - * - * We setup stuff that we use a lot, to avoid calculating each time - */ -static void ipath_ht_tidtemplate(struct ipath_devdata *dd) -{ - dd->ipath_tidtemplate = dd->ipath_ibmaxlen >> 2; - dd->ipath_tidtemplate <<= INFINIPATH_RT_BUFSIZE_SHIFT; - dd->ipath_tidtemplate |= INFINIPATH_RT_VALID; - - /* - * work around chip errata bug 7358, by marking invalid tids - * as having max length - */ - dd->ipath_tidinvalid = (-1LL & INFINIPATH_RT_BUFSIZE_MASK) << - INFINIPATH_RT_BUFSIZE_SHIFT; -} - -static int ipath_ht_early_init(struct ipath_devdata *dd) -{ - u32 __iomem *piobuf; - u32 pioincr, val32, egrsize; - int i; - - /* - * one cache line; long IB headers will spill over into received - * buffer - */ - dd->ipath_rcvhdrentsize = 16; - dd->ipath_rcvhdrsize = IPATH_DFLT_RCVHDRSIZE; - - /* - * For HT-400, we allocate a somewhat overly large eager buffer, - * such that we can guarantee that we can receive the largest - * packet that we can send out. To truly support a 4KB MTU, - * we need to bump this to a large value. To date, other than - * testing, we have never encountered an HCA that can really - * send 4KB MTU packets, so we do not handle that (we'll get - * errors interrupts if we ever see one). - */ - dd->ipath_rcvegrbufsize = dd->ipath_piosize2k; - egrsize = dd->ipath_rcvegrbufsize; - - /* - * the min() check here is currently a nop, but it may not - * always be, depending on just how we do ipath_rcvegrbufsize - */ - dd->ipath_ibmaxlen = min(dd->ipath_piosize2k, - dd->ipath_rcvegrbufsize); - dd->ipath_init_ibmaxlen = dd->ipath_ibmaxlen; - ipath_ht_tidtemplate(dd); - - /* - * zero all the TID entries at startup. We do this for sanity, - * in case of a previous driver crash of some kind, and also - * because the chip powers up with these memories in an unknown - * state. Use portcnt, not cfgports, since this is for the - * full chip, not for current (possibly different) configuration - * value. - * Chip Errata bug 6447 - */ - for (val32 = 0; val32 < dd->ipath_portcnt; val32++) - ipath_ht_clear_tids(dd, val32); - - /* - * write the pbc of each buffer, to be sure it's initialized, then - * cancel all the buffers, and also abort any packets that might - * have been in flight for some reason (the latter is for driver - * unload/reload, but isn't a bad idea at first init). PIO send - * isn't enabled at this point, so there is no danger of sending - * these out on the wire. - * Chip Errata bug 6610 - */ - piobuf = (u32 __iomem *) (((char __iomem *)(dd->ipath_kregbase)) + - dd->ipath_piobufbase); - pioincr = dd->ipath_palign / sizeof(*piobuf); - for (i = 0; i < dd->ipath_piobcnt2k; i++) { - /* - * reasonable word count, just to init pbc - */ - writel(16, piobuf); - piobuf += pioincr; - } - /* - * self-clearing - */ - ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, - INFINIPATH_S_ABORT); - - ipath_get_eeprom_info(dd); - if(dd->ipath_boardrev == 5 && dd->ipath_serial[0] == '1' && - dd->ipath_serial[1] == '2' && dd->ipath_serial[2] == '8') { - /* - * Later production HT-460 has same changes as HT-465, so - * can use GPIO interrupts. They have serial #'s starting - * with 128, rather than 112. - */ - dd->ipath_flags |= IPATH_GPIO_INTR; - dd->ipath_flags &= ~IPATH_POLL_RX_INTR; - } - return 0; -} - -/** - * ipath_init_ht_get_base_info - set chip-specific flags for user code - * @dd: the infinipath device - * @kbase: ipath_base_info pointer - * - * We set the PCIE flag because the lower bandwidth on PCIe vs - * HyperTransport can affect some user packet algorithims. - */ -static int ipath_ht_get_base_info(struct ipath_portdata *pd, void *kbase) -{ - struct ipath_base_info *kinfo = kbase; - - kinfo->spi_runtime_flags |= IPATH_RUNTIME_HT | - IPATH_RUNTIME_RCVHDR_COPY; - - return 0; -} - -/** - * ipath_init_ht400_funcs - set up the chip-specific function pointers - * @dd: the infinipath device - * - * This is global, and is called directly at init to set up the - * chip-specific function pointers for later use. - */ -void ipath_init_ht400_funcs(struct ipath_devdata *dd) -{ - dd->ipath_f_intrsetup = ipath_ht_intconfig; - dd->ipath_f_bus = ipath_setup_ht_config; - dd->ipath_f_reset = ipath_setup_ht_reset; - dd->ipath_f_get_boardname = ipath_ht_boardname; - dd->ipath_f_init_hwerrors = ipath_ht_init_hwerrors; - dd->ipath_f_early_init = ipath_ht_early_init; - dd->ipath_f_handle_hwerrors = ipath_ht_handle_hwerrors; - dd->ipath_f_quiet_serdes = ipath_ht_quiet_serdes; - dd->ipath_f_bringup_serdes = ipath_ht_bringup_serdes; - dd->ipath_f_clear_tids = ipath_ht_clear_tids; - dd->ipath_f_put_tid = ipath_ht_put_tid; - dd->ipath_f_cleanup = ipath_setup_ht_cleanup; - dd->ipath_f_setextled = ipath_setup_ht_setextled; - dd->ipath_f_get_base_info = ipath_ht_get_base_info; - - /* - * initialize chip-specific variables - */ - dd->ipath_f_tidtemplate = ipath_ht_tidtemplate; - - /* - * setup the register offsets, since they are different for each - * chip - */ - dd->ipath_kregs = &ipath_ht_kregs; - dd->ipath_cregs = &ipath_ht_cregs; - - /* - * do very early init that is needed before ipath_f_bus is - * called - */ - ipath_init_ht_variables(); -} diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c new file mode 100644 index 00000000000..5076738aff3 --- /dev/null +++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c @@ -0,0 +1,1602 @@ +/* + * Copyright (c) 2006 QLogic, Inc. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/* + * This file contains all of the code that is specific to the InfiniPath + * HT chip. + */ + +#include +#include + +#include "ipath_kernel.h" +#include "ipath_registers.h" + +/* + * This lists the InfiniPath registers, in the actual chip layout. + * This structure should never be directly accessed. + * + * The names are in InterCap form because they're taken straight from + * the chip specification. Since they're only used in this file, they + * don't pollute the rest of the source. +*/ + +struct _infinipath_do_not_use_kernel_regs { + unsigned long long Revision; + unsigned long long Control; + unsigned long long PageAlign; + unsigned long long PortCnt; + unsigned long long DebugPortSelect; + unsigned long long DebugPort; + unsigned long long SendRegBase; + unsigned long long UserRegBase; + unsigned long long CounterRegBase; + unsigned long long Scratch; + unsigned long long ReservedMisc1; + unsigned long long InterruptConfig; + unsigned long long IntBlocked; + unsigned long long IntMask; + unsigned long long IntStatus; + unsigned long long IntClear; + unsigned long long ErrorMask; + unsigned long long ErrorStatus; + unsigned long long ErrorClear; + unsigned long long HwErrMask; + unsigned long long HwErrStatus; + unsigned long long HwErrClear; + unsigned long long HwDiagCtrl; + unsigned long long MDIO; + unsigned long long IBCStatus; + unsigned long long IBCCtrl; + unsigned long long ExtStatus; + unsigned long long ExtCtrl; + unsigned long long GPIOOut; + unsigned long long GPIOMask; + unsigned long long GPIOStatus; + unsigned long long GPIOClear; + unsigned long long RcvCtrl; + unsigned long long RcvBTHQP; + unsigned long long RcvHdrSize; + unsigned long long RcvHdrCnt; + unsigned long long RcvHdrEntSize; + unsigned long long RcvTIDBase; + unsigned long long RcvTIDCnt; + unsigned long long RcvEgrBase; + unsigned long long RcvEgrCnt; + unsigned long long RcvBufBase; + unsigned long long RcvBufSize; + unsigned long long RxIntMemBase; + unsigned long long RxIntMemSize; + unsigned long long RcvPartitionKey; + unsigned long long ReservedRcv[10]; + unsigned long long SendCtrl; + unsigned long long SendPIOBufBase; + unsigned long long SendPIOSize; + unsigned long long SendPIOBufCnt; + unsigned long long SendPIOAvailAddr; + unsigned long long TxIntMemBase; + unsigned long long TxIntMemSize; + unsigned long long ReservedSend[9]; + unsigned long long SendBufferError; + unsigned long long SendBufferErrorCONT1; + unsigned long long SendBufferErrorCONT2; + unsigned long long SendBufferErrorCONT3; + unsigned long long ReservedSBE[4]; + unsigned long long RcvHdrAddr0; + unsigned long long RcvHdrAddr1; + unsigned long long RcvHdrAddr2; + unsigned long long RcvHdrAddr3; + unsigned long long RcvHdrAddr4; + unsigned long long RcvHdrAddr5; + unsigned long long RcvHdrAddr6; + unsigned long long RcvHdrAddr7; + unsigned long long RcvHdrAddr8; + unsigned long long ReservedRHA[7]; + unsigned long long RcvHdrTailAddr0; + unsigned long long RcvHdrTailAddr1; + unsigned long long RcvHdrTailAddr2; + unsigned long long RcvHdrTailAddr3; + unsigned long long RcvHdrTailAddr4; + unsigned long long RcvHdrTailAddr5; + unsigned long long RcvHdrTailAddr6; + unsigned long long RcvHdrTailAddr7; + unsigned long long RcvHdrTailAddr8; + unsigned long long ReservedRHTA[7]; + unsigned long long Sync; /* Software only */ + unsigned long long Dump; /* Software only */ + unsigned long long SimVer; /* Software only */ + unsigned long long ReservedSW[5]; + unsigned long long SerdesConfig0; + unsigned long long SerdesConfig1; + unsigned long long SerdesStatus; + unsigned long long XGXSConfig; + unsigned long long ReservedSW2[4]; +}; + +#define IPATH_KREG_OFFSET(field) (offsetof(struct \ + _infinipath_do_not_use_kernel_regs, field) / sizeof(u64)) +#define IPATH_CREG_OFFSET(field) (offsetof( \ + struct infinipath_counters, field) / sizeof(u64)) + +static const struct ipath_kregs ipath_ht_kregs = { + .kr_control = IPATH_KREG_OFFSET(Control), + .kr_counterregbase = IPATH_KREG_OFFSET(CounterRegBase), + .kr_debugport = IPATH_KREG_OFFSET(DebugPort), + .kr_debugportselect = IPATH_KREG_OFFSET(DebugPortSelect), + .kr_errorclear = IPATH_KREG_OFFSET(ErrorClear), + .kr_errormask = IPATH_KREG_OFFSET(ErrorMask), + .kr_errorstatus = IPATH_KREG_OFFSET(ErrorStatus), + .kr_extctrl = IPATH_KREG_OFFSET(ExtCtrl), + .kr_extstatus = IPATH_KREG_OFFSET(ExtStatus), + .kr_gpio_clear = IPATH_KREG_OFFSET(GPIOClear), + .kr_gpio_mask = IPATH_KREG_OFFSET(GPIOMask), + .kr_gpio_out = IPATH_KREG_OFFSET(GPIOOut), + .kr_gpio_status = IPATH_KREG_OFFSET(GPIOStatus), + .kr_hwdiagctrl = IPATH_KREG_OFFSET(HwDiagCtrl), + .kr_hwerrclear = IPATH_KREG_OFFSET(HwErrClear), + .kr_hwerrmask = IPATH_KREG_OFFSET(HwErrMask), + .kr_hwerrstatus = IPATH_KREG_OFFSET(HwErrStatus), + .kr_ibcctrl = IPATH_KREG_OFFSET(IBCCtrl), + .kr_ibcstatus = IPATH_KREG_OFFSET(IBCStatus), + .kr_intblocked = IPATH_KREG_OFFSET(IntBlocked), + .kr_intclear = IPATH_KREG_OFFSET(IntClear), + .kr_interruptconfig = IPATH_KREG_OFFSET(InterruptConfig), + .kr_intmask = IPATH_KREG_OFFSET(IntMask), + .kr_intstatus = IPATH_KREG_OFFSET(IntStatus), + .kr_mdio = IPATH_KREG_OFFSET(MDIO), + .kr_pagealign = IPATH_KREG_OFFSET(PageAlign), + .kr_partitionkey = IPATH_KREG_OFFSET(RcvPartitionKey), + .kr_portcnt = IPATH_KREG_OFFSET(PortCnt), + .kr_rcvbthqp = IPATH_KREG_OFFSET(RcvBTHQP), + .kr_rcvbufbase = IPATH_KREG_OFFSET(RcvBufBase), + .kr_rcvbufsize = IPATH_KREG_OFFSET(RcvBufSize), + .kr_rcvctrl = IPATH_KREG_OFFSET(RcvCtrl), + .kr_rcvegrbase = IPATH_KREG_OFFSET(RcvEgrBase), + .kr_rcvegrcnt = IPATH_KREG_OFFSET(RcvEgrCnt), + .kr_rcvhdrcnt = IPATH_KREG_OFFSET(RcvHdrCnt), + .kr_rcvhdrentsize = IPATH_KREG_OFFSET(RcvHdrEntSize), + .kr_rcvhdrsize = IPATH_KREG_OFFSET(RcvHdrSize), + .kr_rcvintmembase = IPATH_KREG_OFFSET(RxIntMemBase), + .kr_rcvintmemsize = IPATH_KREG_OFFSET(RxIntMemSize), + .kr_rcvtidbase = IPATH_KREG_OFFSET(RcvTIDBase), + .kr_rcvtidcnt = IPATH_KREG_OFFSET(RcvTIDCnt), + .kr_revision = IPATH_KREG_OFFSET(Revision), + .kr_scratch = IPATH_KREG_OFFSET(Scratch), + .kr_sendbuffererror = IPATH_KREG_OFFSET(SendBufferError), + .kr_sendctrl = IPATH_KREG_OFFSET(SendCtrl), + .kr_sendpioavailaddr = IPATH_KREG_OFFSET(SendPIOAvailAddr), + .kr_sendpiobufbase = IPATH_KREG_OFFSET(SendPIOBufBase), + .kr_sendpiobufcnt = IPATH_KREG_OFFSET(SendPIOBufCnt), + .kr_sendpiosize = IPATH_KREG_OFFSET(SendPIOSize), + .kr_sendregbase = IPATH_KREG_OFFSET(SendRegBase), + .kr_txintmembase = IPATH_KREG_OFFSET(TxIntMemBase), + .kr_txintmemsize = IPATH_KREG_OFFSET(TxIntMemSize), + .kr_userregbase = IPATH_KREG_OFFSET(UserRegBase), + .kr_serdesconfig0 = IPATH_KREG_OFFSET(SerdesConfig0), + .kr_serdesconfig1 = IPATH_KREG_OFFSET(SerdesConfig1), + .kr_serdesstatus = IPATH_KREG_OFFSET(SerdesStatus), + .kr_xgxsconfig = IPATH_KREG_OFFSET(XGXSConfig), + /* + * These should not be used directly via ipath_read_kreg64(), + * use them with ipath_read_kreg64_port(), + */ + .kr_rcvhdraddr = IPATH_KREG_OFFSET(RcvHdrAddr0), + .kr_rcvhdrtailaddr = IPATH_KREG_OFFSET(RcvHdrTailAddr0) +}; + +static const struct ipath_cregs ipath_ht_cregs = { + .cr_badformatcnt = IPATH_CREG_OFFSET(RxBadFormatCnt), + .cr_erricrccnt = IPATH_CREG_OFFSET(RxICRCErrCnt), + .cr_errlinkcnt = IPATH_CREG_OFFSET(RxLinkProblemCnt), + .cr_errlpcrccnt = IPATH_CREG_OFFSET(RxLPCRCErrCnt), + .cr_errpkey = IPATH_CREG_OFFSET(RxPKeyMismatchCnt), + .cr_errrcvflowctrlcnt = IPATH_CREG_OFFSET(RxFlowCtrlErrCnt), + .cr_err_rlencnt = IPATH_CREG_OFFSET(RxLenErrCnt), + .cr_errslencnt = IPATH_CREG_OFFSET(TxLenErrCnt), + .cr_errtidfull = IPATH_CREG_OFFSET(RxTIDFullErrCnt), + .cr_errtidvalid = IPATH_CREG_OFFSET(RxTIDValidErrCnt), + .cr_errvcrccnt = IPATH_CREG_OFFSET(RxVCRCErrCnt), + .cr_ibstatuschange = IPATH_CREG_OFFSET(IBStatusChangeCnt), + /* calc from Reg_CounterRegBase + offset */ + .cr_intcnt = IPATH_CREG_OFFSET(LBIntCnt), + .cr_invalidrlencnt = IPATH_CREG_OFFSET(RxMaxMinLenErrCnt), + .cr_invalidslencnt = IPATH_CREG_OFFSET(TxMaxMinLenErrCnt), + .cr_lbflowstallcnt = IPATH_CREG_OFFSET(LBFlowStallCnt), + .cr_pktrcvcnt = IPATH_CREG_OFFSET(RxDataPktCnt), + .cr_pktrcvflowctrlcnt = IPATH_CREG_OFFSET(RxFlowPktCnt), + .cr_pktsendcnt = IPATH_CREG_OFFSET(TxDataPktCnt), + .cr_pktsendflowcnt = IPATH_CREG_OFFSET(TxFlowPktCnt), + .cr_portovflcnt = IPATH_CREG_OFFSET(RxP0HdrEgrOvflCnt), + .cr_rcvebpcnt = IPATH_CREG_OFFSET(RxEBPCnt), + .cr_rcvovflcnt = IPATH_CREG_OFFSET(RxBufOvflCnt), + .cr_senddropped = IPATH_CREG_OFFSET(TxDroppedPktCnt), + .cr_sendstallcnt = IPATH_CREG_OFFSET(TxFlowStallCnt), + .cr_sendunderruncnt = IPATH_CREG_OFFSET(TxUnderrunCnt), + .cr_wordrcvcnt = IPATH_CREG_OFFSET(RxDwordCnt), + .cr_wordsendcnt = IPATH_CREG_OFFSET(TxDwordCnt), + .cr_unsupvlcnt = IPATH_CREG_OFFSET(TxUnsupVLErrCnt), + .cr_rxdroppktcnt = IPATH_CREG_OFFSET(RxDroppedPktCnt), + .cr_iblinkerrrecovcnt = IPATH_CREG_OFFSET(IBLinkErrRecoveryCnt), + .cr_iblinkdowncnt = IPATH_CREG_OFFSET(IBLinkDownedCnt), + .cr_ibsymbolerrcnt = IPATH_CREG_OFFSET(IBSymbolErrCnt) +}; + +/* kr_intstatus, kr_intclear, kr_intmask bits */ +#define INFINIPATH_I_RCVURG_MASK 0x1FF +#define INFINIPATH_I_RCVAVAIL_MASK 0x1FF + +/* kr_hwerrclear, kr_hwerrmask, kr_hwerrstatus, bits */ +#define INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT 0 +#define INFINIPATH_HWE_HTCMEMPARITYERR_MASK 0x3FFFFFULL +#define INFINIPATH_HWE_HTCLNKABYTE0CRCERR 0x0000000000800000ULL +#define INFINIPATH_HWE_HTCLNKABYTE1CRCERR 0x0000000001000000ULL +#define INFINIPATH_HWE_HTCLNKBBYTE0CRCERR 0x0000000002000000ULL +#define INFINIPATH_HWE_HTCLNKBBYTE1CRCERR 0x0000000004000000ULL +#define INFINIPATH_HWE_HTCMISCERR4 0x0000000008000000ULL +#define INFINIPATH_HWE_HTCMISCERR5 0x0000000010000000ULL +#define INFINIPATH_HWE_HTCMISCERR6 0x0000000020000000ULL +#define INFINIPATH_HWE_HTCMISCERR7 0x0000000040000000ULL +#define INFINIPATH_HWE_HTCBUSTREQPARITYERR 0x0000000080000000ULL +#define INFINIPATH_HWE_HTCBUSTRESPPARITYERR 0x0000000100000000ULL +#define INFINIPATH_HWE_HTCBUSIREQPARITYERR 0x0000000200000000ULL +#define INFINIPATH_HWE_COREPLL_FBSLIP 0x0080000000000000ULL +#define INFINIPATH_HWE_COREPLL_RFSLIP 0x0100000000000000ULL +#define INFINIPATH_HWE_HTBPLL_FBSLIP 0x0200000000000000ULL +#define INFINIPATH_HWE_HTBPLL_RFSLIP 0x0400000000000000ULL +#define INFINIPATH_HWE_HTAPLL_FBSLIP 0x0800000000000000ULL +#define INFINIPATH_HWE_HTAPLL_RFSLIP 0x1000000000000000ULL +#define INFINIPATH_HWE_SERDESPLLFAILED 0x2000000000000000ULL + +/* kr_extstatus bits */ +#define INFINIPATH_EXTS_FREQSEL 0x2 +#define INFINIPATH_EXTS_SERDESSEL 0x4 +#define INFINIPATH_EXTS_MEMBIST_ENDTEST 0x0000000000004000 +#define INFINIPATH_EXTS_MEMBIST_CORRECT 0x0000000000008000 + +/* + * masks and bits that are different in different chips, or present only + * in one + */ +static const ipath_err_t infinipath_hwe_htcmemparityerr_mask = + INFINIPATH_HWE_HTCMEMPARITYERR_MASK; +static const ipath_err_t infinipath_hwe_htcmemparityerr_shift = + INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT; + +static const ipath_err_t infinipath_hwe_htclnkabyte0crcerr = + INFINIPATH_HWE_HTCLNKABYTE0CRCERR; +static const ipath_err_t infinipath_hwe_htclnkabyte1crcerr = + INFINIPATH_HWE_HTCLNKABYTE1CRCERR; +static const ipath_err_t infinipath_hwe_htclnkbbyte0crcerr = + INFINIPATH_HWE_HTCLNKBBYTE0CRCERR; +static const ipath_err_t infinipath_hwe_htclnkbbyte1crcerr = + INFINIPATH_HWE_HTCLNKBBYTE1CRCERR; + +#define _IPATH_GPIO_SDA_NUM 1 +#define _IPATH_GPIO_SCL_NUM 0 + +#define IPATH_GPIO_SDA \ + (1ULL << (_IPATH_GPIO_SDA_NUM+INFINIPATH_EXTC_GPIOOE_SHIFT)) +#define IPATH_GPIO_SCL \ + (1ULL << (_IPATH_GPIO_SCL_NUM+INFINIPATH_EXTC_GPIOOE_SHIFT)) + +/* keep the code below somewhat more readonable; not used elsewhere */ +#define _IPATH_HTLINK0_CRCBITS (infinipath_hwe_htclnkabyte0crcerr | \ + infinipath_hwe_htclnkabyte1crcerr) +#define _IPATH_HTLINK1_CRCBITS (infinipath_hwe_htclnkbbyte0crcerr | \ + infinipath_hwe_htclnkbbyte1crcerr) +#define _IPATH_HTLANE0_CRCBITS (infinipath_hwe_htclnkabyte0crcerr | \ + infinipath_hwe_htclnkbbyte0crcerr) +#define _IPATH_HTLANE1_CRCBITS (infinipath_hwe_htclnkabyte1crcerr | \ + infinipath_hwe_htclnkbbyte1crcerr) + +static void hwerr_crcbits(struct ipath_devdata *dd, ipath_err_t hwerrs, + char *msg, size_t msgl) +{ + char bitsmsg[64]; + ipath_err_t crcbits = hwerrs & + (_IPATH_HTLINK0_CRCBITS | _IPATH_HTLINK1_CRCBITS); + /* don't check if 8bit HT */ + if (dd->ipath_flags & IPATH_8BIT_IN_HT0) + crcbits &= ~infinipath_hwe_htclnkabyte1crcerr; + /* don't check if 8bit HT */ + if (dd->ipath_flags & IPATH_8BIT_IN_HT1) + crcbits &= ~infinipath_hwe_htclnkbbyte1crcerr; + /* + * we'll want to ignore link errors on link that is + * not in use, if any. For now, complain about both + */ + if (crcbits) { + u16 ctrl0, ctrl1; + snprintf(bitsmsg, sizeof bitsmsg, + "[HT%s lane %s CRC (%llx); ignore till reload]", + !(crcbits & _IPATH_HTLINK1_CRCBITS) ? + "0 (A)" : (!(crcbits & _IPATH_HTLINK0_CRCBITS) + ? "1 (B)" : "0+1 (A+B)"), + !(crcbits & _IPATH_HTLANE1_CRCBITS) ? "0" + : (!(crcbits & _IPATH_HTLANE0_CRCBITS) ? "1" : + "0+1"), (unsigned long long) crcbits); + strlcat(msg, bitsmsg, msgl); + + /* + * print extra info for debugging. slave/primary + * config word 4, 8 (link control 0, 1) + */ + + if (pci_read_config_word(dd->pcidev, + dd->ipath_ht_slave_off + 0x4, + &ctrl0)) + dev_info(&dd->pcidev->dev, "Couldn't read " + "linkctrl0 of slave/primary " + "config block\n"); + else if (!(ctrl0 & 1 << 6)) + /* not if EOC bit set */ + ipath_dbg("HT linkctrl0 0x%x%s%s\n", ctrl0, + ((ctrl0 >> 8) & 7) ? " CRC" : "", + ((ctrl0 >> 4) & 1) ? "linkfail" : + ""); + if (pci_read_config_word(dd->pcidev, + dd->ipath_ht_slave_off + 0x8, + &ctrl1)) + dev_info(&dd->pcidev->dev, "Couldn't read " + "linkctrl1 of slave/primary " + "config block\n"); + else if (!(ctrl1 & 1 << 6)) + /* not if EOC bit set */ + ipath_dbg("HT linkctrl1 0x%x%s%s\n", ctrl1, + ((ctrl1 >> 8) & 7) ? " CRC" : "", + ((ctrl1 >> 4) & 1) ? "linkfail" : + ""); + + /* disable until driver reloaded */ + dd->ipath_hwerrmask &= ~crcbits; + ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, + dd->ipath_hwerrmask); + ipath_dbg("HT crc errs: %s\n", msg); + } else + ipath_dbg("ignoring HT crc errors 0x%llx, " + "not in use\n", (unsigned long long) + (hwerrs & (_IPATH_HTLINK0_CRCBITS | + _IPATH_HTLINK1_CRCBITS))); +} + +/** + * ipath_ht_handle_hwerrors - display hardware errors + * @dd: the infinipath device + * @msg: the output buffer + * @msgl: the size of the output buffer + * + * Use same msg buffer as regular errors to avoid + * excessive stack use. Most hardware errors are catastrophic, but for + * right now, we'll print them and continue. + * We reuse the same message buffer as ipath_handle_errors() to avoid + * excessive stack usage. + */ +static void ipath_ht_handle_hwerrors(struct ipath_devdata *dd, char *msg, + size_t msgl) +{ + ipath_err_t hwerrs; + u32 bits, ctrl; + int isfatal = 0; + char bitsmsg[64]; + + hwerrs = ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus); + + if (!hwerrs) { + ipath_cdbg(VERBOSE, "Called but no hardware errors set\n"); + /* + * better than printing cofusing messages + * This seems to be related to clearing the crc error, or + * the pll error during init. + */ + goto bail; + } else if (hwerrs == -1LL) { + ipath_dev_err(dd, "Read of hardware error status failed " + "(all bits set); ignoring\n"); + goto bail; + } + ipath_stats.sps_hwerrs++; + + /* Always clear the error status register, except MEMBISTFAIL, + * regardless of whether we continue or stop using the chip. + * We want that set so we know it failed, even across driver reload. + * We'll still ignore it in the hwerrmask. We do this partly for + * diagnostics, but also for support */ + ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrclear, + hwerrs&~INFINIPATH_HWE_MEMBISTFAILED); + + hwerrs &= dd->ipath_hwerrmask; + + /* + * make sure we get this much out, unless told to be quiet, + * or it's occurred within the last 5 seconds + */ + if ((hwerrs & ~dd->ipath_lasthwerror) || + (ipath_debug & __IPATH_VERBDBG)) + dev_info(&dd->pcidev->dev, "Hardware error: hwerr=0x%llx " + "(cleared)\n", (unsigned long long) hwerrs); + dd->ipath_lasthwerror |= hwerrs; + + if (hwerrs & ~infinipath_hwe_bitsextant) + ipath_dev_err(dd, "hwerror interrupt with unknown errors " + "%llx set\n", (unsigned long long) + (hwerrs & ~infinipath_hwe_bitsextant)); + + ctrl = ipath_read_kreg32(dd, dd->ipath_kregs->kr_control); + if (ctrl & INFINIPATH_C_FREEZEMODE) { + if (hwerrs) { + /* + * if any set that we aren't ignoring; only + * make the complaint once, in case it's stuck + * or recurring, and we get here multiple + * times. + */ + if (dd->ipath_flags & IPATH_INITTED) { + ipath_dev_err(dd, "Fatal Error (freeze " + "mode), no longer usable\n"); + isfatal = 1; + } + *dd->ipath_statusp &= ~IPATH_STATUS_IB_READY; + /* mark as having had error */ + *dd->ipath_statusp |= IPATH_STATUS_HWERROR; + /* + * mark as not usable, at a minimum until driver + * is reloaded, probably until reboot, since no + * other reset is possible. + */ + dd->ipath_flags &= ~IPATH_INITTED; + } else { + ipath_dbg("Clearing freezemode on ignored hardware " + "error\n"); + ctrl &= ~INFINIPATH_C_FREEZEMODE; + ipath_write_kreg(dd, dd->ipath_kregs->kr_control, + ctrl); + } + } + + *msg = '\0'; + + /* + * may someday want to decode into which bits are which + * functional area for parity errors, etc. + */ + if (hwerrs & (infinipath_hwe_htcmemparityerr_mask + << INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT)) { + bits = (u32) ((hwerrs >> + INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT) & + INFINIPATH_HWE_HTCMEMPARITYERR_MASK); + snprintf(bitsmsg, sizeof bitsmsg, "[HTC Parity Errs %x] ", + bits); + strlcat(msg, bitsmsg, msgl); + } + if (hwerrs & (INFINIPATH_HWE_RXEMEMPARITYERR_MASK + << INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT)) { + bits = (u32) ((hwerrs >> + INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT) & + INFINIPATH_HWE_RXEMEMPARITYERR_MASK); + snprintf(bitsmsg, sizeof bitsmsg, "[RXE Parity Errs %x] ", + bits); + strlcat(msg, bitsmsg, msgl); + } + if (hwerrs & (INFINIPATH_HWE_TXEMEMPARITYERR_MASK + << INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT)) { + bits = (u32) ((hwerrs >> + INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT) & + INFINIPATH_HWE_TXEMEMPARITYERR_MASK); + snprintf(bitsmsg, sizeof bitsmsg, "[TXE Parity Errs %x] ", + bits); + strlcat(msg, bitsmsg, msgl); + } + if (hwerrs & INFINIPATH_HWE_IBCBUSTOSPCPARITYERR) + strlcat(msg, "[IB2IPATH Parity]", msgl); + if (hwerrs & INFINIPATH_HWE_IBCBUSFRSPCPARITYERR) + strlcat(msg, "[IPATH2IB Parity]", msgl); + if (hwerrs & INFINIPATH_HWE_HTCBUSIREQPARITYERR) + strlcat(msg, "[HTC Ireq Parity]", msgl); + if (hwerrs & INFINIPATH_HWE_HTCBUSTREQPARITYERR) + strlcat(msg, "[HTC Treq Parity]", msgl); + if (hwerrs & INFINIPATH_HWE_HTCBUSTRESPPARITYERR) + strlcat(msg, "[HTC Tresp Parity]", msgl); + + if (hwerrs & (_IPATH_HTLINK0_CRCBITS | _IPATH_HTLINK1_CRCBITS)) + hwerr_crcbits(dd, hwerrs, msg, msgl); + + if (hwerrs & INFINIPATH_HWE_HTCMISCERR5) + strlcat(msg, "[HT core Misc5]", msgl); + if (hwerrs & INFINIPATH_HWE_HTCMISCERR6) + strlcat(msg, "[HT core Misc6]", msgl); + if (hwerrs & INFINIPATH_HWE_HTCMISCERR7) + strlcat(msg, "[HT core Misc7]", msgl); + if (hwerrs & INFINIPATH_HWE_MEMBISTFAILED) { + strlcat(msg, "[Memory BIST test failed, InfiniPath hardware unusable]", + msgl); + /* ignore from now on, so disable until driver reloaded */ + dd->ipath_hwerrmask &= ~INFINIPATH_HWE_MEMBISTFAILED; + ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, + dd->ipath_hwerrmask); + } +#define _IPATH_PLL_FAIL (INFINIPATH_HWE_COREPLL_FBSLIP | \ + INFINIPATH_HWE_COREPLL_RFSLIP | \ + INFINIPATH_HWE_HTBPLL_FBSLIP | \ + INFINIPATH_HWE_HTBPLL_RFSLIP | \ + INFINIPATH_HWE_HTAPLL_FBSLIP | \ + INFINIPATH_HWE_HTAPLL_RFSLIP) + + if (hwerrs & _IPATH_PLL_FAIL) { + snprintf(bitsmsg, sizeof bitsmsg, + "[PLL failed (%llx), InfiniPath hardware unusable]", + (unsigned long long) (hwerrs & _IPATH_PLL_FAIL)); + strlcat(msg, bitsmsg, msgl); + /* ignore from now on, so disable until driver reloaded */ + dd->ipath_hwerrmask &= ~(hwerrs & _IPATH_PLL_FAIL); + ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, + dd->ipath_hwerrmask); + } + + if (hwerrs & INFINIPATH_HWE_SERDESPLLFAILED) { + /* + * If it occurs, it is left masked since the eternal + * interface is unused + */ + dd->ipath_hwerrmask &= ~INFINIPATH_HWE_SERDESPLLFAILED; + ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, + dd->ipath_hwerrmask); + } + + if (hwerrs & INFINIPATH_HWE_RXDSYNCMEMPARITYERR) + strlcat(msg, "[Rx Dsync]", msgl); + if (hwerrs & INFINIPATH_HWE_SERDESPLLFAILED) + strlcat(msg, "[SerDes PLL]", msgl); + + ipath_dev_err(dd, "%s hardware error\n", msg); + if (isfatal && !ipath_diag_inuse && dd->ipath_freezemsg) + /* + * for status file; if no trailing brace is copied, + * we'll know it was truncated. + */ + snprintf(dd->ipath_freezemsg, + dd->ipath_freezelen, "{%s}", msg); + +bail:; +} + +/** + * ipath_ht_boardname - fill in the board name + * @dd: the infinipath device + * @name: the output buffer + * @namelen: the size of the output buffer + * + * fill in the board name, based on the board revision register + */ +static int ipath_ht_boardname(struct ipath_devdata *dd, char *name, + size_t namelen) +{ + char *n = NULL; + u8 boardrev = dd->ipath_boardrev; + int ret; + + switch (boardrev) { + case 4: /* Ponderosa is one of the bringup boards */ + n = "Ponderosa"; + break; + case 5: + /* + * original production board; two production levels, with + * different serial number ranges. See ipath_ht_early_init() for + * case where we enable IPATH_GPIO_INTR for later serial # range. + */ + n = "InfiniPath_QHT7040"; + break; + case 6: + n = "OEM_Board_3"; + break; + case 7: + /* small form factor production board */ + n = "InfiniPath_QHT7140"; + break; + case 8: + n = "LS/X-1"; + break; + case 9: /* Comstock bringup test board */ + n = "Comstock"; + break; + case 10: + n = "OEM_Board_2"; + break; + case 11: + n = "InfiniPath_HT-470"; /* obsoleted */ + break; + case 12: + n = "OEM_Board_4"; + break; + default: /* don't know, just print the number */ + ipath_dev_err(dd, "Don't yet know about board " + "with ID %u\n", boardrev); + snprintf(name, namelen, "Unknown_InfiniPath_QHT7xxx_%u", + boardrev); + break; + } + if (n) + snprintf(name, namelen, "%s", n); + + if (dd->ipath_majrev != 3 || (dd->ipath_minrev < 2 || dd->ipath_minrev > 3)) { + /* + * This version of the driver only supports Rev 3.2 and 3.3 + */ + ipath_dev_err(dd, + "Unsupported InfiniPath hardware revision %u.%u!\n", + dd->ipath_majrev, dd->ipath_minrev); + ret = 1; + goto bail; + } + /* + * pkt/word counters are 32 bit, and therefore wrap fast enough + * that we snapshot them from a timer, and maintain 64 bit shadow + * copies + */ + dd->ipath_flags |= IPATH_32BITCOUNTERS; + if (dd->ipath_htspeed != 800) + ipath_dev_err(dd, + "Incorrectly configured for HT @ %uMHz\n", + dd->ipath_htspeed); + if (dd->ipath_boardrev == 7 || dd->ipath_boardrev == 11 || + dd->ipath_boardrev == 6) + dd->ipath_flags |= IPATH_GPIO_INTR; + else + dd->ipath_flags |= IPATH_POLL_RX_INTR; + if (dd->ipath_boardrev == 8) { /* LS/X-1 */ + u64 val; + val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_extstatus); + if (val & INFINIPATH_EXTS_SERDESSEL) { + /* + * hardware disabled + * + * This means that the chip is hardware disabled, + * and will not be able to bring up the link, + * in any case. We special case this and abort + * early, to avoid later messages. We also set + * the DISABLED status bit + */ + ipath_dbg("Unit %u is hardware-disabled\n", + dd->ipath_unit); + *dd->ipath_statusp |= IPATH_STATUS_DISABLED; + /* this value is handled differently */ + ret = 2; + goto bail; + } + } + ret = 0; + +bail: + return ret; +} + +static void ipath_check_htlink(struct ipath_devdata *dd) +{ + u8 linkerr, link_off, i; + + for (i = 0; i < 2; i++) { + link_off = dd->ipath_ht_slave_off + i * 4 + 0xd; + if (pci_read_config_byte(dd->pcidev, link_off, &linkerr)) + dev_info(&dd->pcidev->dev, "Couldn't read " + "linkerror%d of HT slave/primary block\n", + i); + else if (linkerr & 0xf0) { + ipath_cdbg(VERBOSE, "HT linkerr%d bits 0x%x set, " + "clearing\n", linkerr >> 4, i); + /* + * writing the linkerr bits that are set should + * clear them + */ + if (pci_write_config_byte(dd->pcidev, link_off, + linkerr)) + ipath_dbg("Failed write to clear HT " + "linkerror%d\n", i); + if (pci_read_config_byte(dd->pcidev, link_off, + &linkerr)) + dev_info(&dd->pcidev->dev, + "Couldn't reread linkerror%d of " + "HT slave/primary block\n", i); + else if (linkerr & 0xf0) + dev_info(&dd->pcidev->dev, + "HT linkerror%d bits 0x%x " + "couldn't be cleared\n", + i, linkerr >> 4); + } + } +} + +static int ipath_setup_ht_reset(struct ipath_devdata *dd) +{ + ipath_dbg("No reset possible for this InfiniPath hardware\n"); + return 0; +} + +#define HT_CAPABILITY_ID 0x08 /* HT capabilities not defined in kernel */ +#define HT_INTR_DISC_CONFIG 0x80 /* HT interrupt and discovery cap */ +#define HT_INTR_REG_INDEX 2 /* intconfig requires indirect accesses */ + +/* + * Bits 13-15 of command==0 is slave/primary block. Clear any HT CRC + * errors. We only bother to do this at load time, because it's OK if + * it happened before we were loaded (first time after boot/reset), + * but any time after that, it's fatal anyway. Also need to not check + * for for upper byte errors if we are in 8 bit mode, so figure out + * our width. For now, at least, also complain if it's 8 bit. + */ +static void slave_or_pri_blk(struct ipath_devdata *dd, struct pci_dev *pdev, + int pos, u8 cap_type) +{ + u8 linkwidth = 0, linkerr, link_a_b_off, link_off; + u16 linkctrl = 0; + int i; + + dd->ipath_ht_slave_off = pos; + /* command word, master_host bit */ + /* master host || slave */ + if ((cap_type >> 2) & 1) + link_a_b_off = 4; + else + link_a_b_off = 0; + ipath_cdbg(VERBOSE, "HT%u (Link %c) connected to processor\n", + link_a_b_off ? 1 : 0, + link_a_b_off ? 'B' : 'A'); + + link_a_b_off += pos; + + /* + * check both link control registers; clear both HT CRC sets if + * necessary. + */ + for (i = 0; i < 2; i++) { + link_off = pos + i * 4 + 0x4; + if (pci_read_config_word(pdev, link_off, &linkctrl)) + ipath_dev_err(dd, "Couldn't read HT link control%d " + "register\n", i); + else if (linkctrl & (0xf << 8)) { + ipath_cdbg(VERBOSE, "Clear linkctrl%d CRC Error " + "bits %x\n", i, linkctrl & (0xf << 8)); + /* + * now write them back to clear the error. + */ + pci_write_config_byte(pdev, link_off, + linkctrl & (0xf << 8)); + } + } + + /* + * As with HT CRC bits, same for protocol errors that might occur + * during boot. + */ + for (i = 0; i < 2; i++) { + link_off = pos + i * 4 + 0xd; + if (pci_read_config_byte(pdev, link_off, &linkerr)) + dev_info(&pdev->dev, "Couldn't read linkerror%d " + "of HT slave/primary block\n", i); + else if (linkerr & 0xf0) { + ipath_cdbg(VERBOSE, "HT linkerr%d bits 0x%x set, " + "clearing\n", linkerr >> 4, i); + /* + * writing the linkerr bits that are set will clear + * them + */ + if (pci_write_config_byte + (pdev, link_off, linkerr)) + ipath_dbg("Failed write to clear HT " + "linkerror%d\n", i); + if (pci_read_config_byte(pdev, link_off, &linkerr)) + dev_info(&pdev->dev, "Couldn't reread " + "linkerror%d of HT slave/primary " + "block\n", i); + else if (linkerr & 0xf0) + dev_info(&pdev->dev, "HT linkerror%d bits " + "0x%x couldn't be cleared\n", + i, linkerr >> 4); + } + } + + /* + * this is just for our link to the host, not devices connected + * through tunnel. + */ + + if (pci_read_config_byte(pdev, link_a_b_off + 7, &linkwidth)) + ipath_dev_err(dd, "Couldn't read HT link width " + "config register\n"); + else { + u32 width; + switch (linkwidth & 7) { + case 5: + width = 4; + break; + case 4: + width = 2; + break; + case 3: + width = 32; + break; + case 1: + width = 16; + break; + case 0: + default: /* if wrong, assume 8 bit */ + width = 8; + break; + } + + dd->ipath_htwidth = width; + + if (linkwidth != 0x11) { + ipath_dev_err(dd, "Not configured for 16 bit HT " + "(%x)\n", linkwidth); + if (!(linkwidth & 0xf)) { + ipath_dbg("Will ignore HT lane1 errors\n"); + dd->ipath_flags |= IPATH_8BIT_IN_HT0; + } + } + } + + /* + * this is just for our link to the host, not devices connected + * through tunnel. + */ + if (pci_read_config_byte(pdev, link_a_b_off + 0xd, &linkwidth)) + ipath_dev_err(dd, "Couldn't read HT link frequency " + "config register\n"); + else { + u32 speed; + switch (linkwidth & 0xf) { + case 6: + speed = 1000; + break; + case 5: + speed = 800; + break; + case 4: + speed = 600; + break; + case 3: + speed = 500; + break; + case 2: + speed = 400; + break; + case 1: + speed = 300; + break; + default: + /* + * assume reserved and vendor-specific are 200... + */ + case 0: + speed = 200; + break; + } + dd->ipath_htspeed = speed; + } +} + +static int set_int_handler(struct ipath_devdata *dd, struct pci_dev *pdev, + int pos) +{ + u32 int_handler_addr_lower; + u32 int_handler_addr_upper; + u64 ihandler; + u32 intvec; + + /* use indirection register to get the intr handler */ + pci_write_config_byte(pdev, pos + HT_INTR_REG_INDEX, 0x10); + pci_read_config_dword(pdev, pos + 4, &int_handler_addr_lower); + pci_write_config_byte(pdev, pos + HT_INTR_REG_INDEX, 0x11); + pci_read_config_dword(pdev, pos + 4, &int_handler_addr_upper); + + ihandler = (u64) int_handler_addr_lower | + ((u64) int_handler_addr_upper << 32); + + /* + * kernels with CONFIG_PCI_MSI set the vector in the irq field of + * struct pci_device, so we use that to program the internal + * interrupt register (not config space) with that value. The BIOS + * must still have done the basic MSI setup. + */ + intvec = pdev->irq; + /* + * clear any vector bits there; normally not set but we'll overload + * this for some debug purposes (setting the HTC debug register + * value from software, rather than GPIOs), so it might be set on a + * driver reload. + */ + ihandler &= ~0xff0000; + /* x86 vector goes in intrinfo[23:16] */ + ihandler |= intvec << 16; + ipath_cdbg(VERBOSE, "ihandler lower %x, upper %x, intvec %x, " + "interruptconfig %llx\n", int_handler_addr_lower, + int_handler_addr_upper, intvec, + (unsigned long long) ihandler); + + /* can't program yet, so save for interrupt setup */ + dd->ipath_intconfig = ihandler; + /* keep going, so we find link control stuff also */ + + return ihandler != 0; +} + +/** + * ipath_setup_ht_config - setup the interruptconfig register + * @dd: the infinipath device + * @pdev: the PCI device + * + * setup the interruptconfig register from the HT config info. + * Also clear CRC errors in HT linkcontrol, if necessary. + * This is done only for the real hardware. It is done before + * chip address space is initted, so can't touch infinipath registers + */ +static int ipath_setup_ht_config(struct ipath_devdata *dd, + struct pci_dev *pdev) +{ + int pos, ret = 0; + int ihandler = 0; + + /* + * Read the capability info to find the interrupt info, and also + * handle clearing CRC errors in linkctrl register if necessary. We + * do this early, before we ever enable errors or hardware errors, + * mostly to avoid causing the chip to enter freeze mode. + */ + pos = pci_find_capability(pdev, HT_CAPABILITY_ID); + if (!pos) { + ipath_dev_err(dd, "Couldn't find HyperTransport " + "capability; no interrupts\n"); + ret = -ENODEV; + goto bail; + } + do { + u8 cap_type; + + /* the HT capability type byte is 3 bytes after the + * capability byte. + */ + if (pci_read_config_byte(pdev, pos + 3, &cap_type)) { + dev_info(&pdev->dev, "Couldn't read config " + "command @ %d\n", pos); + continue; + } + if (!(cap_type & 0xE0)) + slave_or_pri_blk(dd, pdev, pos, cap_type); + else if (cap_type == HT_INTR_DISC_CONFIG) + ihandler = set_int_handler(dd, pdev, pos); + } while ((pos = pci_find_next_capability(pdev, pos, + HT_CAPABILITY_ID))); + + if (!ihandler) { + ipath_dev_err(dd, "Couldn't find interrupt handler in " + "config space\n"); + ret = -ENODEV; + } + +bail: + return ret; +} + +/** + * ipath_setup_ht_cleanup - clean up any per-chip chip-specific stuff + * @dd: the infinipath device + * + * Called during driver unload. + * This is currently a nop for the HT chip, not for all chips + */ +static void ipath_setup_ht_cleanup(struct ipath_devdata *dd) +{ +} + +/** + * ipath_setup_ht_setextled - set the state of the two external LEDs + * @dd: the infinipath device + * @lst: the L state + * @ltst: the LT state + * + * Set the state of the two external LEDs, to indicate physical and + * logical state of IB link. For this chip (at least with recommended + * board pinouts), LED1 is Green (physical state), and LED2 is Yellow + * (logical state) + * + * Note: We try to match the Mellanox HCA LED behavior as best + * we can. Green indicates physical link state is OK (something is + * plugged in, and we can train). + * Amber indicates the link is logically up (ACTIVE). + * Mellanox further blinks the amber LED to indicate data packet + * activity, but we have no hardware support for that, so it would + * require waking up every 10-20 msecs and checking the counters + * on the chip, and then turning the LED off if appropriate. That's + * visible overhead, so not something we will do. + * + */ +static void ipath_setup_ht_setextled(struct ipath_devdata *dd, + u64 lst, u64 ltst) +{ + u64 extctl; + + /* the diags use the LED to indicate diag info, so we leave + * the external LED alone when the diags are running */ + if (ipath_diag_inuse) + return; + + /* + * start by setting both LED control bits to off, then turn + * on the appropriate bit(s). + */ + if (dd->ipath_boardrev == 8) { /* LS/X-1 uses different pins */ + /* + * major difference is that INFINIPATH_EXTC_LEDGBLERR_OFF + * is inverted, because it is normally used to indicate + * a hardware fault at reset, if there were errors + */ + extctl = (dd->ipath_extctrl & ~INFINIPATH_EXTC_LEDGBLOK_ON) + | INFINIPATH_EXTC_LEDGBLERR_OFF; + if (ltst == INFINIPATH_IBCS_LT_STATE_LINKUP) + extctl &= ~INFINIPATH_EXTC_LEDGBLERR_OFF; + if (lst == INFINIPATH_IBCS_L_STATE_ACTIVE) + extctl |= INFINIPATH_EXTC_LEDGBLOK_ON; + } + else { + extctl = dd->ipath_extctrl & + ~(INFINIPATH_EXTC_LED1PRIPORT_ON | + INFINIPATH_EXTC_LED2PRIPORT_ON); + if (ltst == INFINIPATH_IBCS_LT_STATE_LINKUP) + extctl |= INFINIPATH_EXTC_LED1PRIPORT_ON; + if (lst == INFINIPATH_IBCS_L_STATE_ACTIVE) + extctl |= INFINIPATH_EXTC_LED2PRIPORT_ON; + } + dd->ipath_extctrl = extctl; + ipath_write_kreg(dd, dd->ipath_kregs->kr_extctrl, extctl); +} + +static void ipath_init_ht_variables(void) +{ + ipath_gpio_sda_num = _IPATH_GPIO_SDA_NUM; + ipath_gpio_scl_num = _IPATH_GPIO_SCL_NUM; + ipath_gpio_sda = IPATH_GPIO_SDA; + ipath_gpio_scl = IPATH_GPIO_SCL; + + infinipath_i_bitsextant = + (INFINIPATH_I_RCVURG_MASK << INFINIPATH_I_RCVURG_SHIFT) | + (INFINIPATH_I_RCVAVAIL_MASK << + INFINIPATH_I_RCVAVAIL_SHIFT) | + INFINIPATH_I_ERROR | INFINIPATH_I_SPIOSENT | + INFINIPATH_I_SPIOBUFAVAIL | INFINIPATH_I_GPIO; + + infinipath_e_bitsextant = + INFINIPATH_E_RFORMATERR | INFINIPATH_E_RVCRC | + INFINIPATH_E_RICRC | INFINIPATH_E_RMINPKTLEN | + INFINIPATH_E_RMAXPKTLEN | INFINIPATH_E_RLONGPKTLEN | + INFINIPATH_E_RSHORTPKTLEN | INFINIPATH_E_RUNEXPCHAR | + INFINIPATH_E_RUNSUPVL | INFINIPATH_E_REBP | + INFINIPATH_E_RIBFLOW | INFINIPATH_E_RBADVERSION | + INFINIPATH_E_RRCVEGRFULL | INFINIPATH_E_RRCVHDRFULL | + INFINIPATH_E_RBADTID | INFINIPATH_E_RHDRLEN | + INFINIPATH_E_RHDR | INFINIPATH_E_RIBLOSTLINK | + INFINIPATH_E_SMINPKTLEN | INFINIPATH_E_SMAXPKTLEN | + INFINIPATH_E_SUNDERRUN | INFINIPATH_E_SPKTLEN | + INFINIPATH_E_SDROPPEDSMPPKT | INFINIPATH_E_SDROPPEDDATAPKT | + INFINIPATH_E_SPIOARMLAUNCH | INFINIPATH_E_SUNEXPERRPKTNUM | + INFINIPATH_E_SUNSUPVL | INFINIPATH_E_IBSTATUSCHANGED | + INFINIPATH_E_INVALIDADDR | INFINIPATH_E_RESET | + INFINIPATH_E_HARDWARE; + + infinipath_hwe_bitsextant = + (INFINIPATH_HWE_HTCMEMPARITYERR_MASK << + INFINIPATH_HWE_HTCMEMPARITYERR_SHIFT) | + (INFINIPATH_HWE_TXEMEMPARITYERR_MASK << + INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT) | + (INFINIPATH_HWE_RXEMEMPARITYERR_MASK << + INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT) | + INFINIPATH_HWE_HTCLNKABYTE0CRCERR | + INFINIPATH_HWE_HTCLNKABYTE1CRCERR | + INFINIPATH_HWE_HTCLNKBBYTE0CRCERR | + INFINIPATH_HWE_HTCLNKBBYTE1CRCERR | + INFINIPATH_HWE_HTCMISCERR4 | + INFINIPATH_HWE_HTCMISCERR5 | INFINIPATH_HWE_HTCMISCERR6 | + INFINIPATH_HWE_HTCMISCERR7 | + INFINIPATH_HWE_HTCBUSTREQPARITYERR | + INFINIPATH_HWE_HTCBUSTRESPPARITYERR | + INFINIPATH_HWE_HTCBUSIREQPARITYERR | + INFINIPATH_HWE_RXDSYNCMEMPARITYERR | + INFINIPATH_HWE_MEMBISTFAILED | + INFINIPATH_HWE_COREPLL_FBSLIP | + INFINIPATH_HWE_COREPLL_RFSLIP | + INFINIPATH_HWE_HTBPLL_FBSLIP | + INFINIPATH_HWE_HTBPLL_RFSLIP | + INFINIPATH_HWE_HTAPLL_FBSLIP | + INFINIPATH_HWE_HTAPLL_RFSLIP | + INFINIPATH_HWE_SERDESPLLFAILED | + INFINIPATH_HWE_IBCBUSTOSPCPARITYERR | + INFINIPATH_HWE_IBCBUSFRSPCPARITYERR; + + infinipath_i_rcvavail_mask = INFINIPATH_I_RCVAVAIL_MASK; + infinipath_i_rcvurg_mask = INFINIPATH_I_RCVURG_MASK; +} + +/** + * ipath_ht_init_hwerrors - enable hardware errors + * @dd: the infinipath device + * + * now that we have finished initializing everything that might reasonably + * cause a hardware error, and cleared those errors bits as they occur, + * we can enable hardware errors in the mask (potentially enabling + * freeze mode), and enable hardware errors as errors (along with + * everything else) in errormask + */ +static void ipath_ht_init_hwerrors(struct ipath_devdata *dd) +{ + ipath_err_t val; + u64 extsval; + + extsval = ipath_read_kreg64(dd, dd->ipath_kregs->kr_extstatus); + + if (!(extsval & INFINIPATH_EXTS_MEMBIST_ENDTEST)) + ipath_dev_err(dd, "MemBIST did not complete!\n"); + + ipath_check_htlink(dd); + + /* barring bugs, all hwerrors become interrupts, which can */ + val = -1LL; + /* don't look at crc lane1 if 8 bit */ + if (dd->ipath_flags & IPATH_8BIT_IN_HT0) + val &= ~infinipath_hwe_htclnkabyte1crcerr; + /* don't look at crc lane1 if 8 bit */ + if (dd->ipath_flags & IPATH_8BIT_IN_HT1) + val &= ~infinipath_hwe_htclnkbbyte1crcerr; + + /* + * disable RXDSYNCMEMPARITY because external serdes is unused, + * and therefore the logic will never be used or initialized, + * and uninitialized state will normally result in this error + * being asserted. Similarly for the external serdess pll + * lock signal. + */ + val &= ~(INFINIPATH_HWE_SERDESPLLFAILED | + INFINIPATH_HWE_RXDSYNCMEMPARITYERR); + + /* + * Disable MISCERR4 because of an inversion in the HT core + * logic checking for errors that cause this bit to be set. + * The errata can also cause the protocol error bit to be set + * in the HT config space linkerror register(s). + */ + val &= ~INFINIPATH_HWE_HTCMISCERR4; + + /* + * PLL ignored because MDIO interface has a logic problem + * for reads, on Comstock and Ponderosa. BRINGUP + */ + if (dd->ipath_boardrev == 4 || dd->ipath_boardrev == 9) + val &= ~INFINIPATH_HWE_SERDESPLLFAILED; + dd->ipath_hwerrmask = val; +} + +/** + * ipath_ht_bringup_serdes - bring up the serdes + * @dd: the infinipath device + */ +static int ipath_ht_bringup_serdes(struct ipath_devdata *dd) +{ + u64 val, config1; + int ret = 0, change = 0; + + ipath_dbg("Trying to bringup serdes\n"); + + if (ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus) & + INFINIPATH_HWE_SERDESPLLFAILED) + { + ipath_dbg("At start, serdes PLL failed bit set in " + "hwerrstatus, clearing and continuing\n"); + ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrclear, + INFINIPATH_HWE_SERDESPLLFAILED); + } + + val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0); + config1 = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig1); + + ipath_cdbg(VERBOSE, "Initial serdes status is config0=%llx " + "config1=%llx, sstatus=%llx xgxs %llx\n", + (unsigned long long) val, (unsigned long long) config1, + (unsigned long long) + ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesstatus), + (unsigned long long) + ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig)); + + /* force reset on */ + val |= INFINIPATH_SERDC0_RESET_PLL + /* | INFINIPATH_SERDC0_RESET_MASK */ + ; + ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); + udelay(15); /* need pll reset set at least for a bit */ + + if (val & INFINIPATH_SERDC0_RESET_PLL) { + u64 val2 = val &= ~INFINIPATH_SERDC0_RESET_PLL; + /* set lane resets, and tx idle, during pll reset */ + val2 |= INFINIPATH_SERDC0_RESET_MASK | + INFINIPATH_SERDC0_TXIDLE; + ipath_cdbg(VERBOSE, "Clearing serdes PLL reset (writing " + "%llx)\n", (unsigned long long) val2); + ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, + val2); + /* + * be sure chip saw it + */ + val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); + /* + * need pll reset clear at least 11 usec before lane + * resets cleared; give it a few more + */ + udelay(15); + val = val2; /* for check below */ + } + + if (val & (INFINIPATH_SERDC0_RESET_PLL | + INFINIPATH_SERDC0_RESET_MASK | + INFINIPATH_SERDC0_TXIDLE)) { + val &= ~(INFINIPATH_SERDC0_RESET_PLL | + INFINIPATH_SERDC0_RESET_MASK | + INFINIPATH_SERDC0_TXIDLE); + /* clear them */ + ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, + val); + } + + val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig); + if (((val >> INFINIPATH_XGXS_MDIOADDR_SHIFT) & + INFINIPATH_XGXS_MDIOADDR_MASK) != 3) { + val &= ~(INFINIPATH_XGXS_MDIOADDR_MASK << + INFINIPATH_XGXS_MDIOADDR_SHIFT); + /* + * we use address 3 + */ + val |= 3ULL << INFINIPATH_XGXS_MDIOADDR_SHIFT; + change = 1; + } + if (val & INFINIPATH_XGXS_RESET) { + /* normally true after boot */ + val &= ~INFINIPATH_XGXS_RESET; + change = 1; + } + if (change) + ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val); + + val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0); + + /* clear current and de-emphasis bits */ + config1 &= ~0x0ffffffff00ULL; + /* set current to 20ma */ + config1 |= 0x00000000000ULL; + /* set de-emphasis to -5.68dB */ + config1 |= 0x0cccc000000ULL; + ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig1, config1); + + ipath_cdbg(VERBOSE, "After setup: serdes status is config0=%llx " + "config1=%llx, sstatus=%llx xgxs %llx\n", + (unsigned long long) val, (unsigned long long) config1, + (unsigned long long) + ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesstatus), + (unsigned long long) + ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig)); + + if (!ipath_waitfor_mdio_cmdready(dd)) { + ipath_write_kreg(dd, dd->ipath_kregs->kr_mdio, + ipath_mdio_req(IPATH_MDIO_CMD_READ, 31, + IPATH_MDIO_CTRL_XGXS_REG_8, + 0)); + if (ipath_waitfor_complete(dd, dd->ipath_kregs->kr_mdio, + IPATH_MDIO_DATAVALID, &val)) + ipath_dbg("Never got MDIO data for XGXS status " + "read\n"); + else + ipath_cdbg(VERBOSE, "MDIO Read reg8, " + "'bank' 31 %x\n", (u32) val); + } else + ipath_dbg("Never got MDIO cmdready for XGXS status read\n"); + + return ret; /* for now, say we always succeeded */ +} + +/** + * ipath_ht_quiet_serdes - set serdes to txidle + * @dd: the infinipath device + * driver is being unloaded + */ +static void ipath_ht_quiet_serdes(struct ipath_devdata *dd) +{ + u64 val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0); + + val |= INFINIPATH_SERDC0_TXIDLE; + ipath_dbg("Setting TxIdleEn on serdes (config0 = %llx)\n", + (unsigned long long) val); + ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); +} + +static int ipath_ht_intconfig(struct ipath_devdata *dd) +{ + int ret; + + if (!dd->ipath_intconfig) { + ipath_dev_err(dd, "No interrupts enabled, couldn't setup " + "interrupt address\n"); + ret = 1; + goto bail; + } + + ipath_write_kreg(dd, dd->ipath_kregs->kr_interruptconfig, + dd->ipath_intconfig); /* interrupt address */ + ret = 0; + +bail: + return ret; +} + +/** + * ipath_pe_put_tid - write a TID in chip + * @dd: the infinipath device + * @tidptr: pointer to the expected TID (in chip) to udpate + * @tidtype: 0 for eager, 1 for expected + * @pa: physical address of in memory buffer; ipath_tidinvalid if freeing + * + * This exists as a separate routine to allow for special locking etc. + * It's used for both the full cleanup on exit, as well as the normal + * setup and teardown. + */ +static void ipath_ht_put_tid(struct ipath_devdata *dd, + u64 __iomem *tidptr, u32 type, + unsigned long pa) +{ + if (pa != dd->ipath_tidinvalid) { + if (unlikely((pa & ~INFINIPATH_RT_ADDR_MASK))) { + dev_info(&dd->pcidev->dev, + "physaddr %lx has more than " + "40 bits, using only 40!!!\n", pa); + pa &= INFINIPATH_RT_ADDR_MASK; + } + if (type == 0) + pa |= dd->ipath_tidtemplate; + else { + /* in words (fixed, full page). */ + u64 lenvalid = PAGE_SIZE >> 2; + lenvalid <<= INFINIPATH_RT_BUFSIZE_SHIFT; + pa |= lenvalid | INFINIPATH_RT_VALID; + } + } + if (dd->ipath_kregbase) + writeq(pa, tidptr); +} + +/** + * ipath_ht_clear_tid - clear all TID entries for a port, expected and eager + * @dd: the infinipath device + * @port: the port + * + * Used from ipath_close(), and at chip initialization. + */ +static void ipath_ht_clear_tids(struct ipath_devdata *dd, unsigned port) +{ + u64 __iomem *tidbase; + int i; + + if (!dd->ipath_kregbase) + return; + + ipath_cdbg(VERBOSE, "Invalidate TIDs for port %u\n", port); + + /* + * need to invalidate all of the expected TID entries for this + * port, so we don't have valid entries that might somehow get + * used (early in next use of this port, or through some bug) + */ + tidbase = (u64 __iomem *) ((char __iomem *)(dd->ipath_kregbase) + + dd->ipath_rcvtidbase + + port * dd->ipath_rcvtidcnt * + sizeof(*tidbase)); + for (i = 0; i < dd->ipath_rcvtidcnt; i++) + ipath_ht_put_tid(dd, &tidbase[i], 1, dd->ipath_tidinvalid); + + tidbase = (u64 __iomem *) ((char __iomem *)(dd->ipath_kregbase) + + dd->ipath_rcvegrbase + + port * dd->ipath_rcvegrcnt * + sizeof(*tidbase)); + + for (i = 0; i < dd->ipath_rcvegrcnt; i++) + ipath_ht_put_tid(dd, &tidbase[i], 0, dd->ipath_tidinvalid); +} + +/** + * ipath_ht_tidtemplate - setup constants for TID updates + * @dd: the infinipath device + * + * We setup stuff that we use a lot, to avoid calculating each time + */ +static void ipath_ht_tidtemplate(struct ipath_devdata *dd) +{ + dd->ipath_tidtemplate = dd->ipath_ibmaxlen >> 2; + dd->ipath_tidtemplate <<= INFINIPATH_RT_BUFSIZE_SHIFT; + dd->ipath_tidtemplate |= INFINIPATH_RT_VALID; + + /* + * work around chip errata bug 7358, by marking invalid tids + * as having max length + */ + dd->ipath_tidinvalid = (-1LL & INFINIPATH_RT_BUFSIZE_MASK) << + INFINIPATH_RT_BUFSIZE_SHIFT; +} + +static int ipath_ht_early_init(struct ipath_devdata *dd) +{ + u32 __iomem *piobuf; + u32 pioincr, val32, egrsize; + int i; + + /* + * one cache line; long IB headers will spill over into received + * buffer + */ + dd->ipath_rcvhdrentsize = 16; + dd->ipath_rcvhdrsize = IPATH_DFLT_RCVHDRSIZE; + + /* + * For HT, we allocate a somewhat overly large eager buffer, + * such that we can guarantee that we can receive the largest + * packet that we can send out. To truly support a 4KB MTU, + * we need to bump this to a large value. To date, other than + * testing, we have never encountered an HCA that can really + * send 4KB MTU packets, so we do not handle that (we'll get + * errors interrupts if we ever see one). + */ + dd->ipath_rcvegrbufsize = dd->ipath_piosize2k; + egrsize = dd->ipath_rcvegrbufsize; + + /* + * the min() check here is currently a nop, but it may not + * always be, depending on just how we do ipath_rcvegrbufsize + */ + dd->ipath_ibmaxlen = min(dd->ipath_piosize2k, + dd->ipath_rcvegrbufsize); + dd->ipath_init_ibmaxlen = dd->ipath_ibmaxlen; + ipath_ht_tidtemplate(dd); + + /* + * zero all the TID entries at startup. We do this for sanity, + * in case of a previous driver crash of some kind, and also + * because the chip powers up with these memories in an unknown + * state. Use portcnt, not cfgports, since this is for the + * full chip, not for current (possibly different) configuration + * value. + * Chip Errata bug 6447 + */ + for (val32 = 0; val32 < dd->ipath_portcnt; val32++) + ipath_ht_clear_tids(dd, val32); + + /* + * write the pbc of each buffer, to be sure it's initialized, then + * cancel all the buffers, and also abort any packets that might + * have been in flight for some reason (the latter is for driver + * unload/reload, but isn't a bad idea at first init). PIO send + * isn't enabled at this point, so there is no danger of sending + * these out on the wire. + * Chip Errata bug 6610 + */ + piobuf = (u32 __iomem *) (((char __iomem *)(dd->ipath_kregbase)) + + dd->ipath_piobufbase); + pioincr = dd->ipath_palign / sizeof(*piobuf); + for (i = 0; i < dd->ipath_piobcnt2k; i++) { + /* + * reasonable word count, just to init pbc + */ + writel(16, piobuf); + piobuf += pioincr; + } + /* + * self-clearing + */ + ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, + INFINIPATH_S_ABORT); + + ipath_get_eeprom_info(dd); + if(dd->ipath_boardrev == 5 && dd->ipath_serial[0] == '1' && + dd->ipath_serial[1] == '2' && dd->ipath_serial[2] == '8') { + /* + * Later production QHT7040 has same changes as QHT7140, so + * can use GPIO interrupts. They have serial #'s starting + * with 128, rather than 112. + */ + dd->ipath_flags |= IPATH_GPIO_INTR; + dd->ipath_flags &= ~IPATH_POLL_RX_INTR; + } + return 0; +} + +/** + * ipath_init_ht_get_base_info - set chip-specific flags for user code + * @dd: the infinipath device + * @kbase: ipath_base_info pointer + * + * We set the PCIE flag because the lower bandwidth on PCIe vs + * HyperTransport can affect some user packet algorithims. + */ +static int ipath_ht_get_base_info(struct ipath_portdata *pd, void *kbase) +{ + struct ipath_base_info *kinfo = kbase; + + kinfo->spi_runtime_flags |= IPATH_RUNTIME_HT | + IPATH_RUNTIME_RCVHDR_COPY; + + return 0; +} + +/** + * ipath_init_iba6110_funcs - set up the chip-specific function pointers + * @dd: the infinipath device + * + * This is global, and is called directly at init to set up the + * chip-specific function pointers for later use. + */ +void ipath_init_iba6110_funcs(struct ipath_devdata *dd) +{ + dd->ipath_f_intrsetup = ipath_ht_intconfig; + dd->ipath_f_bus = ipath_setup_ht_config; + dd->ipath_f_reset = ipath_setup_ht_reset; + dd->ipath_f_get_boardname = ipath_ht_boardname; + dd->ipath_f_init_hwerrors = ipath_ht_init_hwerrors; + dd->ipath_f_early_init = ipath_ht_early_init; + dd->ipath_f_handle_hwerrors = ipath_ht_handle_hwerrors; + dd->ipath_f_quiet_serdes = ipath_ht_quiet_serdes; + dd->ipath_f_bringup_serdes = ipath_ht_bringup_serdes; + dd->ipath_f_clear_tids = ipath_ht_clear_tids; + dd->ipath_f_put_tid = ipath_ht_put_tid; + dd->ipath_f_cleanup = ipath_setup_ht_cleanup; + dd->ipath_f_setextled = ipath_setup_ht_setextled; + dd->ipath_f_get_base_info = ipath_ht_get_base_info; + + /* + * initialize chip-specific variables + */ + dd->ipath_f_tidtemplate = ipath_ht_tidtemplate; + + /* + * setup the register offsets, since they are different for each + * chip + */ + dd->ipath_kregs = &ipath_ht_kregs; + dd->ipath_cregs = &ipath_ht_cregs; + + /* + * do very early init that is needed before ipath_f_bus is + * called + */ + ipath_init_ht_variables(); +} diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c new file mode 100644 index 00000000000..f4233baaa33 --- /dev/null +++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c @@ -0,0 +1,1254 @@ +/* + * Copyright (c) 2006 QLogic, Inc. All rights reserved. + * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +/* + * This file contains all of the code that is specific to the + * InfiniPath PCIe chip. + */ + +#include +#include +#include + + +#include "ipath_kernel.h" +#include "ipath_registers.h" + +/* + * This file contains all the chip-specific register information and + * access functions for the QLogic InfiniPath PCI-Express chip. + * + * This lists the InfiniPath registers, in the actual chip layout. + * This structure should never be directly accessed. + */ +struct _infinipath_do_not_use_kernel_regs { + unsigned long long Revision; + unsigned long long Control; + unsigned long long PageAlign; + unsigned long long PortCnt; + unsigned long long DebugPortSelect; + unsigned long long Reserved0; + unsigned long long SendRegBase; + unsigned long long UserRegBase; + unsigned long long CounterRegBase; + unsigned long long Scratch; + unsigned long long Reserved1; + unsigned long long Reserved2; + unsigned long long IntBlocked; + unsigned long long IntMask; + unsigned long long IntStatus; + unsigned long long IntClear; + unsigned long long ErrorMask; + unsigned long long ErrorStatus; + unsigned long long ErrorClear; + unsigned long long HwErrMask; + unsigned long long HwErrStatus; + unsigned long long HwErrClear; + unsigned long long HwDiagCtrl; + unsigned long long MDIO; + unsigned long long IBCStatus; + unsigned long long IBCCtrl; + unsigned long long ExtStatus; + unsigned long long ExtCtrl; + unsigned long long GPIOOut; + unsigned long long GPIOMask; + unsigned long long GPIOStatus; + unsigned long long GPIOClear; + unsigned long long RcvCtrl; + unsigned long long RcvBTHQP; + unsigned long long RcvHdrSize; + unsigned long long RcvHdrCnt; + unsigned long long RcvHdrEntSize; + unsigned long long RcvTIDBase; + unsigned long long RcvTIDCnt; + unsigned long long RcvEgrBase; + unsigned long long RcvEgrCnt; + unsigned long long RcvBufBase; + unsigned long long RcvBufSize; + unsigned long long RxIntMemBase; + unsigned long long RxIntMemSize; + unsigned long long RcvPartitionKey; + unsigned long long Reserved3; + unsigned long long RcvPktLEDCnt; + unsigned long long Reserved4[8]; + unsigned long long SendCtrl; + unsigned long long SendPIOBufBase; + unsigned long long SendPIOSize; + unsigned long long SendPIOBufCnt; + unsigned long long SendPIOAvailAddr; + unsigned long long TxIntMemBase; + unsigned long long TxIntMemSize; + unsigned long long Reserved5; + unsigned long long PCIeRBufTestReg0; + unsigned long long PCIeRBufTestReg1; + unsigned long long Reserved51[6]; + unsigned long long SendBufferError; + unsigned long long SendBufferErrorCONT1; + unsigned long long Reserved6SBE[6]; + unsigned long long RcvHdrAddr0; + unsigned long long RcvHdrAddr1; + unsigned long long RcvHdrAddr2; + unsigned long long RcvHdrAddr3; + unsigned long long RcvHdrAddr4; + unsigned long long Reserved7RHA[11]; + unsigned long long RcvHdrTailAddr0; + unsigned long long RcvHdrTailAddr1; + unsigned long long RcvHdrTailAddr2; + unsigned long long RcvHdrTailAddr3; + unsigned long long RcvHdrTailAddr4; + unsigned long long Reserved8RHTA[11]; + unsigned long long Reserved9SW[8]; + unsigned long long SerdesConfig0; + unsigned long long SerdesConfig1; + unsigned long long SerdesStatus; + unsigned long long XGXSConfig; + unsigned long long IBPLLCfg; + unsigned long long Reserved10SW2[3]; + unsigned long long PCIEQ0SerdesConfig0; + unsigned long long PCIEQ0SerdesConfig1; + unsigned long long PCIEQ0SerdesStatus; + unsigned long long Reserved11; + unsigned long long PCIEQ1SerdesConfig0; + unsigned long long PCIEQ1SerdesConfig1; + unsigned long long PCIEQ1SerdesStatus; + unsigned long long Reserved12; +}; + +#define IPATH_KREG_OFFSET(field) (offsetof(struct \ + _infinipath_do_not_use_kernel_regs, field) / sizeof(u64)) +#define IPATH_CREG_OFFSET(field) (offsetof( \ + struct infinipath_counters, field) / sizeof(u64)) + +static const struct ipath_kregs ipath_pe_kregs = { + .kr_control = IPATH_KREG_OFFSET(Control), + .kr_counterregbase = IPATH_KREG_OFFSET(CounterRegBase), + .kr_debugportselect = IPATH_KREG_OFFSET(DebugPortSelect), + .kr_errorclear = IPATH_KREG_OFFSET(ErrorClear), + .kr_errormask = IPATH_KREG_OFFSET(ErrorMask), + .kr_errorstatus = IPATH_KREG_OFFSET(ErrorStatus), + .kr_extctrl = IPATH_KREG_OFFSET(ExtCtrl), + .kr_extstatus = IPATH_KREG_OFFSET(ExtStatus), + .kr_gpio_clear = IPATH_KREG_OFFSET(GPIOClear), + .kr_gpio_mask = IPATH_KREG_OFFSET(GPIOMask), + .kr_gpio_out = IPATH_KREG_OFFSET(GPIOOut), + .kr_gpio_status = IPATH_KREG_OFFSET(GPIOStatus), + .kr_hwdiagctrl = IPATH_KREG_OFFSET(HwDiagCtrl), + .kr_hwerrclear = IPATH_KREG_OFFSET(HwErrClear), + .kr_hwerrmask = IPATH_KREG_OFFSET(HwErrMask), + .kr_hwerrstatus = IPATH_KREG_OFFSET(HwErrStatus), + .kr_ibcctrl = IPATH_KREG_OFFSET(IBCCtrl), + .kr_ibcstatus = IPATH_KREG_OFFSET(IBCStatus), + .kr_intblocked = IPATH_KREG_OFFSET(IntBlocked), + .kr_intclear = IPATH_KREG_OFFSET(IntClear), + .kr_intmask = IPATH_KREG_OFFSET(IntMask), + .kr_intstatus = IPATH_KREG_OFFSET(IntStatus), + .kr_mdio = IPATH_KREG_OFFSET(MDIO), + .kr_pagealign = IPATH_KREG_OFFSET(PageAlign), + .kr_partitionkey = IPATH_KREG_OFFSET(RcvPartitionKey), + .kr_portcnt = IPATH_KREG_OFFSET(PortCnt), + .kr_rcvbthqp = IPATH_KREG_OFFSET(RcvBTHQP), + .kr_rcvbufbase = IPATH_KREG_OFFSET(RcvBufBase), + .kr_rcvbufsize = IPATH_KREG_OFFSET(RcvBufSize), + .kr_rcvctrl = IPATH_KREG_OFFSET(RcvCtrl), + .kr_rcvegrbase = IPATH_KREG_OFFSET(RcvEgrBase), + .kr_rcvegrcnt = IPATH_KREG_OFFSET(RcvEgrCnt), + .kr_rcvhdrcnt = IPATH_KREG_OFFSET(RcvHdrCnt), + .kr_rcvhdrentsize = IPATH_KREG_OFFSET(RcvHdrEntSize), + .kr_rcvhdrsize = IPATH_KREG_OFFSET(RcvHdrSize), + .kr_rcvintmembase = IPATH_KREG_OFFSET(RxIntMemBase), + .kr_rcvintmemsize = IPATH_KREG_OFFSET(RxIntMemSize), + .kr_rcvtidbase = IPATH_KREG_OFFSET(RcvTIDBase), + .kr_rcvtidcnt = IPATH_KREG_OFFSET(RcvTIDCnt), + .kr_revision = IPATH_KREG_OFFSET(Revision), + .kr_scratch = IPATH_KREG_OFFSET(Scratch), + .kr_sendbuffererror = IPATH_KREG_OFFSET(SendBufferError), + .kr_sendctrl = IPATH_KREG_OFFSET(SendCtrl), + .kr_sendpioavailaddr = IPATH_KREG_OFFSET(SendPIOAvailAddr), + .kr_sendpiobufbase = IPATH_KREG_OFFSET(SendPIOBufBase), + .kr_sendpiobufcnt = IPATH_KREG_OFFSET(SendPIOBufCnt), + .kr_sendpiosize = IPATH_KREG_OFFSET(SendPIOSize), + .kr_sendregbase = IPATH_KREG_OFFSET(SendRegBase), + .kr_txintmembase = IPATH_KREG_OFFSET(TxIntMemBase), + .kr_txintmemsize = IPATH_KREG_OFFSET(TxIntMemSize), + .kr_userregbase = IPATH_KREG_OFFSET(UserRegBase), + .kr_serdesconfig0 = IPATH_KREG_OFFSET(SerdesConfig0), + .kr_serdesconfig1 = IPATH_KREG_OFFSET(SerdesConfig1), + .kr_serdesstatus = IPATH_KREG_OFFSET(SerdesStatus), + .kr_xgxsconfig = IPATH_KREG_OFFSET(XGXSConfig), + .kr_ibpllcfg = IPATH_KREG_OFFSET(IBPLLCfg), + + /* + * These should not be used directly via ipath_read_kreg64(), + * use them with ipath_read_kreg64_port() + */ + .kr_rcvhdraddr = IPATH_KREG_OFFSET(RcvHdrAddr0), + .kr_rcvhdrtailaddr = IPATH_KREG_OFFSET(RcvHdrTailAddr0), + + /* The rcvpktled register controls one of the debug port signals, so + * a packet activity LED can be connected to it. */ + .kr_rcvpktledcnt = IPATH_KREG_OFFSET(RcvPktLEDCnt), + .kr_pcierbuftestreg0 = IPATH_KREG_OFFSET(PCIeRBufTestReg0), + .kr_pcierbuftestreg1 = IPATH_KREG_OFFSET(PCIeRBufTestReg1), + .kr_pcieq0serdesconfig0 = IPATH_KREG_OFFSET(PCIEQ0SerdesConfig0), + .kr_pcieq0serdesconfig1 = IPATH_KREG_OFFSET(PCIEQ0SerdesConfig1), + .kr_pcieq0serdesstatus = IPATH_KREG_OFFSET(PCIEQ0SerdesStatus), + .kr_pcieq1serdesconfig0 = IPATH_KREG_OFFSET(PCIEQ1SerdesConfig0), + .kr_pcieq1serdesconfig1 = IPATH_KREG_OFFSET(PCIEQ1SerdesConfig1), + .kr_pcieq1serdesstatus = IPATH_KREG_OFFSET(PCIEQ1SerdesStatus) +}; + +static const struct ipath_cregs ipath_pe_cregs = { + .cr_badformatcnt = IPATH_CREG_OFFSET(RxBadFormatCnt), + .cr_erricrccnt = IPATH_CREG_OFFSET(RxICRCErrCnt), + .cr_errlinkcnt = IPATH_CREG_OFFSET(RxLinkProblemCnt), + .cr_errlpcrccnt = IPATH_CREG_OFFSET(RxLPCRCErrCnt), + .cr_errpkey = IPATH_CREG_OFFSET(RxPKeyMismatchCnt), + .cr_errrcvflowctrlcnt = IPATH_CREG_OFFSET(RxFlowCtrlErrCnt), + .cr_err_rlencnt = IPATH_CREG_OFFSET(RxLenErrCnt), + .cr_errslencnt = IPATH_CREG_OFFSET(TxLenErrCnt), + .cr_errtidfull = IPATH_CREG_OFFSET(RxTIDFullErrCnt), + .cr_errtidvalid = IPATH_CREG_OFFSET(RxTIDValidErrCnt), + .cr_errvcrccnt = IPATH_CREG_OFFSET(RxVCRCErrCnt), + .cr_ibstatuschange = IPATH_CREG_OFFSET(IBStatusChangeCnt), + .cr_intcnt = IPATH_CREG_OFFSET(LBIntCnt), + .cr_invalidrlencnt = IPATH_CREG_OFFSET(RxMaxMinLenErrCnt), + .cr_invalidslencnt = IPATH_CREG_OFFSET(TxMaxMinLenErrCnt), + .cr_lbflowstallcnt = IPATH_CREG_OFFSET(LBFlowStallCnt), + .cr_pktrcvcnt = IPATH_CREG_OFFSET(RxDataPktCnt), + .cr_pktrcvflowctrlcnt = IPATH_CREG_OFFSET(RxFlowPktCnt), + .cr_pktsendcnt = IPATH_CREG_OFFSET(TxDataPktCnt), + .cr_pktsendflowcnt = IPATH_CREG_OFFSET(TxFlowPktCnt), + .cr_portovflcnt = IPATH_CREG_OFFSET(RxP0HdrEgrOvflCnt), + .cr_rcvebpcnt = IPATH_CREG_OFFSET(RxEBPCnt), + .cr_rcvovflcnt = IPATH_CREG_OFFSET(RxBufOvflCnt), + .cr_senddropped = IPATH_CREG_OFFSET(TxDroppedPktCnt), + .cr_sendstallcnt = IPATH_CREG_OFFSET(TxFlowStallCnt), + .cr_sendunderruncnt = IPATH_CREG_OFFSET(TxUnderrunCnt), + .cr_wordrcvcnt = IPATH_CREG_OFFSET(RxDwordCnt), + .cr_wordsendcnt = IPATH_CREG_OFFSET(TxDwordCnt), + .cr_unsupvlcnt = IPATH_CREG_OFFSET(TxUnsupVLErrCnt), + .cr_rxdroppktcnt = IPATH_CREG_OFFSET(RxDroppedPktCnt), + .cr_iblinkerrrecovcnt = IPATH_CREG_OFFSET(IBLinkErrRecoveryCnt), + .cr_iblinkdowncnt = IPATH_CREG_OFFSET(IBLinkDownedCnt), + .cr_ibsymbolerrcnt = IPATH_CREG_OFFSET(IBSymbolErrCnt) +}; + +/* kr_intstatus, kr_intclear, kr_intmask bits */ +#define INFINIPATH_I_RCVURG_MASK 0x1F +#define INFINIPATH_I_RCVAVAIL_MASK 0x1F + +/* kr_hwerrclear, kr_hwerrmask, kr_hwerrstatus, bits */ +#define INFINIPATH_HWE_PCIEMEMPARITYERR_MASK 0x000000000000003fULL +#define INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT 0 +#define INFINIPATH_HWE_PCIEPOISONEDTLP 0x0000000010000000ULL +#define INFINIPATH_HWE_PCIECPLTIMEOUT 0x0000000020000000ULL +#define INFINIPATH_HWE_PCIEBUSPARITYXTLH 0x0000000040000000ULL +#define INFINIPATH_HWE_PCIEBUSPARITYXADM 0x0000000080000000ULL +#define INFINIPATH_HWE_PCIEBUSPARITYRADM 0x0000000100000000ULL +#define INFINIPATH_HWE_COREPLL_FBSLIP 0x0080000000000000ULL +#define INFINIPATH_HWE_COREPLL_RFSLIP 0x0100000000000000ULL +#define INFINIPATH_HWE_PCIE1PLLFAILED 0x0400000000000000ULL +#define INFINIPATH_HWE_PCIE0PLLFAILED 0x0800000000000000ULL +#define INFINIPATH_HWE_SERDESPLLFAILED 0x1000000000000000ULL + +/* kr_extstatus bits */ +#define INFINIPATH_EXTS_FREQSEL 0x2 +#define INFINIPATH_EXTS_SERDESSEL 0x4 +#define INFINIPATH_EXTS_MEMBIST_ENDTEST 0x0000000000004000 +#define INFINIPATH_EXTS_MEMBIST_FOUND 0x0000000000008000 + +#define _IPATH_GPIO_SDA_NUM 1 +#define _IPATH_GPIO_SCL_NUM 0 + +#define IPATH_GPIO_SDA (1ULL << \ + (_IPATH_GPIO_SDA_NUM+INFINIPATH_EXTC_GPIOOE_SHIFT)) +#define IPATH_GPIO_SCL (1ULL << \ + (_IPATH_GPIO_SCL_NUM+INFINIPATH_EXTC_GPIOOE_SHIFT)) + +/** + * ipath_pe_handle_hwerrors - display hardware errors. + * @dd: the infinipath device + * @msg: the output buffer + * @msgl: the size of the output buffer + * + * Use same msg buffer as regular errors to avoid excessive stack + * use. Most hardware errors are catastrophic, but for right now, + * we'll print them and continue. We reuse the same message buffer as + * ipath_handle_errors() to avoid excessive stack usage. + */ +static void ipath_pe_handle_hwerrors(struct ipath_devdata *dd, char *msg, + size_t msgl) +{ + ipath_err_t hwerrs; + u32 bits, ctrl; + int isfatal = 0; + char bitsmsg[64]; + + hwerrs = ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus); + if (!hwerrs) { + /* + * better than printing cofusing messages + * This seems to be related to clearing the crc error, or + * the pll error during init. + */ + ipath_cdbg(VERBOSE, "Called but no hardware errors set\n"); + return; + } else if (hwerrs == ~0ULL) { + ipath_dev_err(dd, "Read of hardware error status failed " + "(all bits set); ignoring\n"); + return; + } + ipath_stats.sps_hwerrs++; + + /* Always clear the error status register, except MEMBISTFAIL, + * regardless of whether we continue or stop using the chip. + * We want that set so we know it failed, even across driver reload. + * We'll still ignore it in the hwerrmask. We do this partly for + * diagnostics, but also for support */ + ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrclear, + hwerrs&~INFINIPATH_HWE_MEMBISTFAILED); + + hwerrs &= dd->ipath_hwerrmask; + + /* + * make sure we get this much out, unless told to be quiet, + * or it's occurred within the last 5 seconds + */ + if ((hwerrs & ~dd->ipath_lasthwerror) || + (ipath_debug & __IPATH_VERBDBG)) + dev_info(&dd->pcidev->dev, "Hardware error: hwerr=0x%llx " + "(cleared)\n", (unsigned long long) hwerrs); + dd->ipath_lasthwerror |= hwerrs; + + if (hwerrs & ~infinipath_hwe_bitsextant) + ipath_dev_err(dd, "hwerror interrupt with unknown errors " + "%llx set\n", (unsigned long long) + (hwerrs & ~infinipath_hwe_bitsextant)); + + ctrl = ipath_read_kreg32(dd, dd->ipath_kregs->kr_control); + if (ctrl & INFINIPATH_C_FREEZEMODE) { + if (hwerrs) { + /* + * if any set that we aren't ignoring only make the + * complaint once, in case it's stuck or recurring, + * and we get here multiple times + */ + if (dd->ipath_flags & IPATH_INITTED) { + ipath_dev_err(dd, "Fatal Error (freeze " + "mode), no longer usable\n"); + isfatal = 1; + } + /* + * Mark as having had an error for driver, and also + * for /sys and status word mapped to user programs. + * This marks unit as not usable, until reset + */ + *dd->ipath_statusp &= ~IPATH_STATUS_IB_READY; + *dd->ipath_statusp |= IPATH_STATUS_HWERROR; + dd->ipath_flags &= ~IPATH_INITTED; + } else { + ipath_dbg("Clearing freezemode on ignored hardware " + "error\n"); + ctrl &= ~INFINIPATH_C_FREEZEMODE; + ipath_write_kreg(dd, dd->ipath_kregs->kr_control, + ctrl); + } + } + + *msg = '\0'; + + if (hwerrs & INFINIPATH_HWE_MEMBISTFAILED) { + strlcat(msg, "[Memory BIST test failed, InfiniPath hardware unusable]", + msgl); + /* ignore from now on, so disable until driver reloaded */ + *dd->ipath_statusp |= IPATH_STATUS_HWERROR; + dd->ipath_hwerrmask &= ~INFINIPATH_HWE_MEMBISTFAILED; + ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, + dd->ipath_hwerrmask); + } + if (hwerrs & (INFINIPATH_HWE_RXEMEMPARITYERR_MASK + << INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT)) { + bits = (u32) ((hwerrs >> + INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT) & + INFINIPATH_HWE_RXEMEMPARITYERR_MASK); + snprintf(bitsmsg, sizeof bitsmsg, "[RXE Parity Errs %x] ", + bits); + strlcat(msg, bitsmsg, msgl); + } + if (hwerrs & (INFINIPATH_HWE_TXEMEMPARITYERR_MASK + << INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT)) { + bits = (u32) ((hwerrs >> + INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT) & + INFINIPATH_HWE_TXEMEMPARITYERR_MASK); + snprintf(bitsmsg, sizeof bitsmsg, "[TXE Parity Errs %x] ", + bits); + strlcat(msg, bitsmsg, msgl); + } + if (hwerrs & (INFINIPATH_HWE_PCIEMEMPARITYERR_MASK + << INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT)) { + bits = (u32) ((hwerrs >> + INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT) & + INFINIPATH_HWE_PCIEMEMPARITYERR_MASK); + snprintf(bitsmsg, sizeof bitsmsg, + "[PCIe Mem Parity Errs %x] ", bits); + strlcat(msg, bitsmsg, msgl); + } + if (hwerrs & INFINIPATH_HWE_IBCBUSTOSPCPARITYERR) + strlcat(msg, "[IB2IPATH Parity]", msgl); + if (hwerrs & INFINIPATH_HWE_IBCBUSFRSPCPARITYERR) + strlcat(msg, "[IPATH2IB Parity]", msgl); + +#define _IPATH_PLL_FAIL (INFINIPATH_HWE_COREPLL_FBSLIP | \ + INFINIPATH_HWE_COREPLL_RFSLIP ) + + if (hwerrs & _IPATH_PLL_FAIL) { + snprintf(bitsmsg, sizeof bitsmsg, + "[PLL failed (%llx), InfiniPath hardware unusable]", + (unsigned long long) hwerrs & _IPATH_PLL_FAIL); + strlcat(msg, bitsmsg, msgl); + /* ignore from now on, so disable until driver reloaded */ + dd->ipath_hwerrmask &= ~(hwerrs & _IPATH_PLL_FAIL); + ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, + dd->ipath_hwerrmask); + } + + if (hwerrs & INFINIPATH_HWE_SERDESPLLFAILED) { + /* + * If it occurs, it is left masked since the eternal + * interface is unused + */ + dd->ipath_hwerrmask &= ~INFINIPATH_HWE_SERDESPLLFAILED; + ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, + dd->ipath_hwerrmask); + } + + if (hwerrs & INFINIPATH_HWE_PCIEPOISONEDTLP) + strlcat(msg, "[PCIe Poisoned TLP]", msgl); + if (hwerrs & INFINIPATH_HWE_PCIECPLTIMEOUT) + strlcat(msg, "[PCIe completion timeout]", msgl); + + /* + * In practice, it's unlikely wthat we'll see PCIe PLL, or bus + * parity or memory parity error failures, because most likely we + * won't be able to talk to the core of the chip. Nonetheless, we + * might see them, if they are in parts of the PCIe core that aren't + * essential. + */ + if (hwerrs & INFINIPATH_HWE_PCIE1PLLFAILED) + strlcat(msg, "[PCIePLL1]", msgl); + if (hwerrs & INFINIPATH_HWE_PCIE0PLLFAILED) + strlcat(msg, "[PCIePLL0]", msgl); + if (hwerrs & INFINIPATH_HWE_PCIEBUSPARITYXTLH) + strlcat(msg, "[PCIe XTLH core parity]", msgl); + if (hwerrs & INFINIPATH_HWE_PCIEBUSPARITYXADM) + strlcat(msg, "[PCIe ADM TX core parity]", msgl); + if (hwerrs & INFINIPATH_HWE_PCIEBUSPARITYRADM) + strlcat(msg, "[PCIe ADM RX core parity]", msgl); + + if (hwerrs & INFINIPATH_HWE_RXDSYNCMEMPARITYERR) + strlcat(msg, "[Rx Dsync]", msgl); + if (hwerrs & INFINIPATH_HWE_SERDESPLLFAILED) + strlcat(msg, "[SerDes PLL]", msgl); + + ipath_dev_err(dd, "%s hardware error\n", msg); + if (isfatal && !ipath_diag_inuse && dd->ipath_freezemsg) { + /* + * for /sys status file ; if no trailing } is copied, we'll + * know it was truncated. + */ + snprintf(dd->ipath_freezemsg, dd->ipath_freezelen, + "{%s}", msg); + } +} + +/** + * ipath_pe_boardname - fill in the board name + * @dd: the infinipath device + * @name: the output buffer + * @namelen: the size of the output buffer + * + * info is based on the board revision register + */ +static int ipath_pe_boardname(struct ipath_devdata *dd, char *name, + size_t namelen) +{ + char *n = NULL; + u8 boardrev = dd->ipath_boardrev; + int ret; + + switch (boardrev) { + case 0: + n = "InfiniPath_Emulation"; + break; + case 1: + n = "InfiniPath_QLE7140-Bringup"; + break; + case 2: + n = "InfiniPath_QLE7140"; + break; + case 3: + n = "InfiniPath_QMI7140"; + break; + case 4: + n = "InfiniPath_QEM7140"; + break; + case 5: + n = "InfiniPath_QMH7140"; + break; + default: + ipath_dev_err(dd, + "Don't yet know about board with ID %u\n", + boardrev); + snprintf(name, namelen, "Unknown_InfiniPath_PCIe_%u", + boardrev); + break; + } + if (n) + snprintf(name, namelen, "%s", n); + + if (dd->ipath_majrev != 4 || !dd->ipath_minrev || dd->ipath_minrev>2) { + ipath_dev_err(dd, "Unsupported InfiniPath hardware revision %u.%u!\n", + dd->ipath_majrev, dd->ipath_minrev); + ret = 1; + } else + ret = 0; + + return ret; +} + +/** + * ipath_pe_init_hwerrors - enable hardware errors + * @dd: the infinipath device + * + * now that we have finished initializing everything that might reasonably + * cause a hardware error, and cleared those errors bits as they occur, + * we can enable hardware errors in the mask (potentially enabling + * freeze mode), and enable hardware errors as errors (along with + * everything else) in errormask + */ +static void ipath_pe_init_hwerrors(struct ipath_devdata *dd) +{ + ipath_err_t val; + u64 extsval; + + extsval = ipath_read_kreg64(dd, dd->ipath_kregs->kr_extstatus); + + if (!(extsval & INFINIPATH_EXTS_MEMBIST_ENDTEST)) + ipath_dev_err(dd, "MemBIST did not complete!\n"); + + val = ~0ULL; /* barring bugs, all hwerrors become interrupts, */ + + if (!dd->ipath_boardrev) // no PLL for Emulator + val &= ~INFINIPATH_HWE_SERDESPLLFAILED; + + /* workaround bug 9460 in internal interface bus parity checking */ + val &= ~INFINIPATH_HWE_PCIEBUSPARITYRADM; + + dd->ipath_hwerrmask = val; +} + +/** + * ipath_pe_bringup_serdes - bring up the serdes + * @dd: the infinipath device + */ +static int ipath_pe_bringup_serdes(struct ipath_devdata *dd) +{ + u64 val, tmp, config1; + int ret = 0, change = 0; + + ipath_dbg("Trying to bringup serdes\n"); + + if (ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus) & + INFINIPATH_HWE_SERDESPLLFAILED) { + ipath_dbg("At start, serdes PLL failed bit set " + "in hwerrstatus, clearing and continuing\n"); + ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrclear, + INFINIPATH_HWE_SERDESPLLFAILED); + } + + val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0); + config1 = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig1); + + ipath_cdbg(VERBOSE, "SerDes status config0=%llx config1=%llx, " + "xgxsconfig %llx\n", (unsigned long long) val, + (unsigned long long) config1, (unsigned long long) + ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig)); + + /* + * Force reset on, also set rxdetect enable. Must do before reading + * serdesstatus at least for simulation, or some of the bits in + * serdes status will come back as undefined and cause simulation + * failures + */ + val |= INFINIPATH_SERDC0_RESET_PLL | INFINIPATH_SERDC0_RXDETECT_EN + | INFINIPATH_SERDC0_L1PWR_DN; + ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); + /* be sure chip saw it */ + tmp = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); + udelay(5); /* need pll reset set at least for a bit */ + /* + * after PLL is reset, set the per-lane Resets and TxIdle and + * clear the PLL reset and rxdetect (to get falling edge). + * Leave L1PWR bits set (permanently) + */ + val &= ~(INFINIPATH_SERDC0_RXDETECT_EN | INFINIPATH_SERDC0_RESET_PLL + | INFINIPATH_SERDC0_L1PWR_DN); + val |= INFINIPATH_SERDC0_RESET_MASK | INFINIPATH_SERDC0_TXIDLE; + ipath_cdbg(VERBOSE, "Clearing pll reset and setting lane resets " + "and txidle (%llx)\n", (unsigned long long) val); + ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); + /* be sure chip saw it */ + tmp = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); + /* need PLL reset clear for at least 11 usec before lane + * resets cleared; give it a few more to be sure */ + udelay(15); + val &= ~(INFINIPATH_SERDC0_RESET_MASK | INFINIPATH_SERDC0_TXIDLE); + + ipath_cdbg(VERBOSE, "Clearing lane resets and txidle " + "(writing %llx)\n", (unsigned long long) val); + ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); + /* be sure chip saw it */ + val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); + + val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig); + if (((val >> INFINIPATH_XGXS_MDIOADDR_SHIFT) & + INFINIPATH_XGXS_MDIOADDR_MASK) != 3) { + val &= + ~(INFINIPATH_XGXS_MDIOADDR_MASK << + INFINIPATH_XGXS_MDIOADDR_SHIFT); + /* MDIO address 3 */ + val |= 3ULL << INFINIPATH_XGXS_MDIOADDR_SHIFT; + change = 1; + } + if (val & INFINIPATH_XGXS_RESET) { + val &= ~INFINIPATH_XGXS_RESET; + change = 1; + } + if (change) + ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val); + + val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0); + + /* clear current and de-emphasis bits */ + config1 &= ~0x0ffffffff00ULL; + /* set current to 20ma */ + config1 |= 0x00000000000ULL; + /* set de-emphasis to -5.68dB */ + config1 |= 0x0cccc000000ULL; + ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig1, config1); + + ipath_cdbg(VERBOSE, "done: SerDes status config0=%llx " + "config1=%llx, sstatus=%llx xgxs=%llx\n", + (unsigned long long) val, (unsigned long long) config1, + (unsigned long long) + ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesstatus), + (unsigned long long) + ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig)); + + if (!ipath_waitfor_mdio_cmdready(dd)) { + ipath_write_kreg( + dd, dd->ipath_kregs->kr_mdio, + ipath_mdio_req(IPATH_MDIO_CMD_READ, 31, + IPATH_MDIO_CTRL_XGXS_REG_8, 0)); + if (ipath_waitfor_complete(dd, dd->ipath_kregs->kr_mdio, + IPATH_MDIO_DATAVALID, &val)) + ipath_dbg("Never got MDIO data for XGXS " + "status read\n"); + else + ipath_cdbg(VERBOSE, "MDIO Read reg8, " + "'bank' 31 %x\n", (u32) val); + } else + ipath_dbg("Never got MDIO cmdready for XGXS status read\n"); + + return ret; +} + +/** + * ipath_pe_quiet_serdes - set serdes to txidle + * @dd: the infinipath device + * Called when driver is being unloaded + */ +static void ipath_pe_quiet_serdes(struct ipath_devdata *dd) +{ + u64 val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0); + + val |= INFINIPATH_SERDC0_TXIDLE; + ipath_dbg("Setting TxIdleEn on serdes (config0 = %llx)\n", + (unsigned long long) val); + ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); +} + +/* this is not yet needed on this chip, so just return 0. */ +static int ipath_pe_intconfig(struct ipath_devdata *dd) +{ + return 0; +} + +/** + * ipath_setup_pe_setextled - set the state of the two external LEDs + * @dd: the infinipath device + * @lst: the L state + * @ltst: the LT state + + * These LEDs indicate the physical and logical state of IB link. + * For this chip (at least with recommended board pinouts), LED1 + * is Yellow (logical state) and LED2 is Green (physical state), + * + * Note: We try to match the Mellanox HCA LED behavior as best + * we can. Green indicates physical link state is OK (something is + * plugged in, and we can train). + * Amber indicates the link is logically up (ACTIVE). + * Mellanox further blinks the amber LED to indicate data packet + * activity, but we have no hardware support for that, so it would + * require waking up every 10-20 msecs and checking the counters + * on the chip, and then turning the LED off if appropriate. That's + * visible overhead, so not something we will do. + * + */ +static void ipath_setup_pe_setextled(struct ipath_devdata *dd, u64 lst, + u64 ltst) +{ + u64 extctl; + + /* the diags use the LED to indicate diag info, so we leave + * the external LED alone when the diags are running */ + if (ipath_diag_inuse) + return; + + extctl = dd->ipath_extctrl & ~(INFINIPATH_EXTC_LED1PRIPORT_ON | + INFINIPATH_EXTC_LED2PRIPORT_ON); + + if (ltst & INFINIPATH_IBCS_LT_STATE_LINKUP) + extctl |= INFINIPATH_EXTC_LED2PRIPORT_ON; + if (lst == INFINIPATH_IBCS_L_STATE_ACTIVE) + extctl |= INFINIPATH_EXTC_LED1PRIPORT_ON; + dd->ipath_extctrl = extctl; + ipath_write_kreg(dd, dd->ipath_kregs->kr_extctrl, extctl); +} + +/** + * ipath_setup_pe_cleanup - clean up any per-chip chip-specific stuff + * @dd: the infinipath device + * + * This is called during driver unload. + * We do the pci_disable_msi here, not in generic code, because it + * isn't used for the HT chips. If we do end up needing pci_enable_msi + * at some point in the future for HT, we'll move the call back + * into the main init_one code. + */ +static void ipath_setup_pe_cleanup(struct ipath_devdata *dd) +{ + dd->ipath_msi_lo = 0; /* just in case unload fails */ + pci_disable_msi(dd->pcidev); +} + +/** + * ipath_setup_pe_config - setup PCIe config related stuff + * @dd: the infinipath device + * @pdev: the PCI device + * + * The pci_enable_msi() call will fail on systems with MSI quirks + * such as those with AMD8131, even if the device of interest is not + * attached to that device, (in the 2.6.13 - 2.6.15 kernels, at least, fixed + * late in 2.6.16). + * All that can be done is to edit the kernel source to remove the quirk + * check until that is fixed. + * We do not need to call enable_msi() for our HyperTransport chip, + * even though it uses MSI, and we want to avoid the quirk warning, so + * So we call enable_msi only for PCIe. If we do end up needing + * pci_enable_msi at some point in the future for HT, we'll move the + * call back into the main init_one code. + * We save the msi lo and hi values, so we can restore them after + * chip reset (the kernel PCI infrastructure doesn't yet handle that + * correctly). + */ +static int ipath_setup_pe_config(struct ipath_devdata *dd, + struct pci_dev *pdev) +{ + int pos, ret; + + dd->ipath_msi_lo = 0; /* used as a flag during reset processing */ + ret = pci_enable_msi(dd->pcidev); + if (ret) + ipath_dev_err(dd, "pci_enable_msi failed: %d, " + "interrupts may not work\n", ret); + /* continue even if it fails, we may still be OK... */ + + if ((pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_MSI))) { + u16 control; + pci_read_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_LO, + &dd->ipath_msi_lo); + pci_read_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_HI, + &dd->ipath_msi_hi); + pci_read_config_word(dd->pcidev, pos + PCI_MSI_FLAGS, + &control); + /* now save the data (vector) info */ + pci_read_config_word(dd->pcidev, + pos + ((control & PCI_MSI_FLAGS_64BIT) + ? 12 : 8), + &dd->ipath_msi_data); + ipath_cdbg(VERBOSE, "Read msi data 0x%x from config offset " + "0x%x, control=0x%x\n", dd->ipath_msi_data, + pos + ((control & PCI_MSI_FLAGS_64BIT) ? 12 : 8), + control); + /* we save the cachelinesize also, although it doesn't + * really matter */ + pci_read_config_byte(dd->pcidev, PCI_CACHE_LINE_SIZE, + &dd->ipath_pci_cacheline); + } else + ipath_dev_err(dd, "Can't find MSI capability, " + "can't save MSI settings for reset\n"); + if ((pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_EXP))) { + u16 linkstat; + pci_read_config_word(dd->pcidev, pos + PCI_EXP_LNKSTA, + &linkstat); + linkstat >>= 4; + linkstat &= 0x1f; + if (linkstat != 8) + ipath_dev_err(dd, "PCIe width %u, " + "performance reduced\n", linkstat); + } + else + ipath_dev_err(dd, "Can't find PCI Express " + "capability!\n"); + return 0; +} + +static void ipath_init_pe_variables(void) +{ + /* + * bits for selecting i2c direction and values, + * used for I2C serial flash + */ + ipath_gpio_sda_num = _IPATH_GPIO_SDA_NUM; + ipath_gpio_scl_num = _IPATH_GPIO_SCL_NUM; + ipath_gpio_sda = IPATH_GPIO_SDA; + ipath_gpio_scl = IPATH_GPIO_SCL; + + /* variables for sanity checking interrupt and errors */ + infinipath_hwe_bitsextant = + (INFINIPATH_HWE_RXEMEMPARITYERR_MASK << + INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT) | + (INFINIPATH_HWE_PCIEMEMPARITYERR_MASK << + INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT) | + INFINIPATH_HWE_PCIE1PLLFAILED | + INFINIPATH_HWE_PCIE0PLLFAILED | + INFINIPATH_HWE_PCIEPOISONEDTLP | + INFINIPATH_HWE_PCIECPLTIMEOUT | + INFINIPATH_HWE_PCIEBUSPARITYXTLH | + INFINIPATH_HWE_PCIEBUSPARITYXADM | + INFINIPATH_HWE_PCIEBUSPARITYRADM | + INFINIPATH_HWE_MEMBISTFAILED | + INFINIPATH_HWE_COREPLL_FBSLIP | + INFINIPATH_HWE_COREPLL_RFSLIP | + INFINIPATH_HWE_SERDESPLLFAILED | + INFINIPATH_HWE_IBCBUSTOSPCPARITYERR | + INFINIPATH_HWE_IBCBUSFRSPCPARITYERR; + infinipath_i_bitsextant = + (INFINIPATH_I_RCVURG_MASK << INFINIPATH_I_RCVURG_SHIFT) | + (INFINIPATH_I_RCVAVAIL_MASK << + INFINIPATH_I_RCVAVAIL_SHIFT) | + INFINIPATH_I_ERROR | INFINIPATH_I_SPIOSENT | + INFINIPATH_I_SPIOBUFAVAIL | INFINIPATH_I_GPIO; + infinipath_e_bitsextant = + INFINIPATH_E_RFORMATERR | INFINIPATH_E_RVCRC | + INFINIPATH_E_RICRC | INFINIPATH_E_RMINPKTLEN | + INFINIPATH_E_RMAXPKTLEN | INFINIPATH_E_RLONGPKTLEN | + INFINIPATH_E_RSHORTPKTLEN | INFINIPATH_E_RUNEXPCHAR | + INFINIPATH_E_RUNSUPVL | INFINIPATH_E_REBP | + INFINIPATH_E_RIBFLOW | INFINIPATH_E_RBADVERSION | + INFINIPATH_E_RRCVEGRFULL | INFINIPATH_E_RRCVHDRFULL | + INFINIPATH_E_RBADTID | INFINIPATH_E_RHDRLEN | + INFINIPATH_E_RHDR | INFINIPATH_E_RIBLOSTLINK | + INFINIPATH_E_SMINPKTLEN | INFINIPATH_E_SMAXPKTLEN | + INFINIPATH_E_SUNDERRUN | INFINIPATH_E_SPKTLEN | + INFINIPATH_E_SDROPPEDSMPPKT | INFINIPATH_E_SDROPPEDDATAPKT | + INFINIPATH_E_SPIOARMLAUNCH | INFINIPATH_E_SUNEXPERRPKTNUM | + INFINIPATH_E_SUNSUPVL | INFINIPATH_E_IBSTATUSCHANGED | + INFINIPATH_E_INVALIDADDR | INFINIPATH_E_RESET | + INFINIPATH_E_HARDWARE; + + infinipath_i_rcvavail_mask = INFINIPATH_I_RCVAVAIL_MASK; + infinipath_i_rcvurg_mask = INFINIPATH_I_RCVURG_MASK; +} + +/* setup the MSI stuff again after a reset. I'd like to just call + * pci_enable_msi() and request_irq() again, but when I do that, + * the MSI enable bit doesn't get set in the command word, and + * we switch to to a different interrupt vector, which is confusing, + * so I instead just do it all inline. Perhaps somehow can tie this + * into the PCIe hotplug support at some point + * Note, because I'm doing it all here, I don't call pci_disable_msi() + * or free_irq() at the start of ipath_setup_pe_reset(). + */ +static int ipath_reinit_msi(struct ipath_devdata *dd) +{ + int pos; + u16 control; + int ret; + + if (!dd->ipath_msi_lo) { + dev_info(&dd->pcidev->dev, "Can't restore MSI config, " + "initial setup failed?\n"); + ret = 0; + goto bail; + } + + if (!(pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_MSI))) { + ipath_dev_err(dd, "Can't find MSI capability, " + "can't restore MSI settings\n"); + ret = 0; + goto bail; + } + ipath_cdbg(VERBOSE, "Writing msi_lo 0x%x to config offset 0x%x\n", + dd->ipath_msi_lo, pos + PCI_MSI_ADDRESS_LO); + pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_LO, + dd->ipath_msi_lo); + ipath_cdbg(VERBOSE, "Writing msi_lo 0x%x to config offset 0x%x\n", + dd->ipath_msi_hi, pos + PCI_MSI_ADDRESS_HI); + pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_HI, + dd->ipath_msi_hi); + pci_read_config_word(dd->pcidev, pos + PCI_MSI_FLAGS, &control); + if (!(control & PCI_MSI_FLAGS_ENABLE)) { + ipath_cdbg(VERBOSE, "MSI control at off %x was %x, " + "setting MSI enable (%x)\n", pos + PCI_MSI_FLAGS, + control, control | PCI_MSI_FLAGS_ENABLE); + control |= PCI_MSI_FLAGS_ENABLE; + pci_write_config_word(dd->pcidev, pos + PCI_MSI_FLAGS, + control); + } + /* now rewrite the data (vector) info */ + pci_write_config_word(dd->pcidev, pos + + ((control & PCI_MSI_FLAGS_64BIT) ? 12 : 8), + dd->ipath_msi_data); + /* we restore the cachelinesize also, although it doesn't really + * matter */ + pci_write_config_byte(dd->pcidev, PCI_CACHE_LINE_SIZE, + dd->ipath_pci_cacheline); + /* and now set the pci master bit again */ + pci_set_master(dd->pcidev); + ret = 1; + +bail: + return ret; +} + +/* This routine sleeps, so it can only be called from user context, not + * from interrupt context. If we need interrupt context, we can split + * it into two routines. +*/ +static int ipath_setup_pe_reset(struct ipath_devdata *dd) +{ + u64 val; + int i; + int ret; + + /* Use ERROR so it shows up in logs, etc. */ + ipath_dev_err(dd, "Resetting InfiniPath unit %u\n", dd->ipath_unit); + /* keep chip from being accessed in a few places */ + dd->ipath_flags &= ~(IPATH_INITTED|IPATH_PRESENT); + val = dd->ipath_control | INFINIPATH_C_RESET; + ipath_write_kreg(dd, dd->ipath_kregs->kr_control, val); + mb(); + + for (i = 1; i <= 5; i++) { + int r; + /* allow MBIST, etc. to complete; longer on each retry. + * We sometimes get machine checks from bus timeout if no + * response, so for now, make it *really* long. + */ + msleep(1000 + (1 + i) * 2000); + if ((r = + pci_write_config_dword(dd->pcidev, PCI_BASE_ADDRESS_0, + dd->ipath_pcibar0))) + ipath_dev_err(dd, "rewrite of BAR0 failed: %d\n", + r); + if ((r = + pci_write_config_dword(dd->pcidev, PCI_BASE_ADDRESS_1, + dd->ipath_pcibar1))) + ipath_dev_err(dd, "rewrite of BAR1 failed: %d\n", + r); + /* now re-enable memory access */ + if ((r = pci_enable_device(dd->pcidev))) + ipath_dev_err(dd, "pci_enable_device failed after " + "reset: %d\n", r); + /* whether it worked or not, mark as present, again */ + dd->ipath_flags |= IPATH_PRESENT; + val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_revision); + if (val == dd->ipath_revision) { + ipath_cdbg(VERBOSE, "Got matching revision " + "register %llx on try %d\n", + (unsigned long long) val, i); + ret = ipath_reinit_msi(dd); + goto bail; + } + /* Probably getting -1 back */ + ipath_dbg("Didn't get expected revision register, " + "got %llx, try %d\n", (unsigned long long) val, + i + 1); + } + ret = 0; /* failed */ + +bail: + return ret; +} + +/** + * ipath_pe_put_tid - write a TID in chip + * @dd: the infinipath device + * @tidptr: pointer to the expected TID (in chip) to udpate + * @tidtype: 0 for eager, 1 for expected + * @pa: physical address of in memory buffer; ipath_tidinvalid if freeing + * + * This exists as a separate routine to allow for special locking etc. + * It's used for both the full cleanup on exit, as well as the normal + * setup and teardown. + */ +static void ipath_pe_put_tid(struct ipath_devdata *dd, u64 __iomem *tidptr, + u32 type, unsigned long pa) +{ + u32 __iomem *tidp32 = (u32 __iomem *)tidptr; + unsigned long flags = 0; /* keep gcc quiet */ + + if (pa != dd->ipath_tidinvalid) { + if (pa & ((1U << 11) - 1)) { + dev_info(&dd->pcidev->dev, "BUG: physaddr %lx " + "not 4KB aligned!\n", pa); + return; + } + pa >>= 11; + /* paranoia check */ + if (pa & (7<<29)) + ipath_dev_err(dd, + "BUG: Physical page address 0x%lx " + "has bits set in 31-29\n", pa); + + if (type == 0) + pa |= dd->ipath_tidtemplate; + else /* for now, always full 4KB page */ + pa |= 2 << 29; + } + + /* workaround chip bug 9437 by writing each TID twice + * and holding a spinlock around the writes, so they don't + * intermix with other TID (eager or expected) writes + * Unfortunately, this call can be done from interrupt level + * for the port 0 eager TIDs, so we have to use irqsave + */ + spin_lock_irqsave(&dd->ipath_tid_lock, flags); + ipath_write_kreg(dd, dd->ipath_kregs->kr_scratch, 0xfeeddeaf); + if (dd->ipath_kregbase) + writel(pa, tidp32); + ipath_write_kreg(dd, dd->ipath_kregs->kr_scratch, 0xdeadbeef); + mmiowb(); + spin_unlock_irqrestore(&dd->ipath_tid_lock, flags); +} + +/** + * ipath_pe_clear_tid - clear all TID entries for a port, expected and eager + * @dd: the infinipath device + * @port: the port + * + * clear all TID entries for a port, expected and eager. + * Used from ipath_close(). On this chip, TIDs are only 32 bits, + * not 64, but they are still on 64 bit boundaries, so tidbase + * is declared as u64 * for the pointer math, even though we write 32 bits + */ +static void ipath_pe_clear_tids(struct ipath_devdata *dd, unsigned port) +{ + u64 __iomem *tidbase; + unsigned long tidinv; + int i; + + if (!dd->ipath_kregbase) + return; + + ipath_cdbg(VERBOSE, "Invalidate TIDs for port %u\n", port); + + tidinv = dd->ipath_tidinvalid; + tidbase = (u64 __iomem *) + ((char __iomem *)(dd->ipath_kregbase) + + dd->ipath_rcvtidbase + + port * dd->ipath_rcvtidcnt * sizeof(*tidbase)); + + for (i = 0; i < dd->ipath_rcvtidcnt; i++) + ipath_pe_put_tid(dd, &tidbase[i], 0, tidinv); + + tidbase = (u64 __iomem *) + ((char __iomem *)(dd->ipath_kregbase) + + dd->ipath_rcvegrbase + + port * dd->ipath_rcvegrcnt * sizeof(*tidbase)); + + for (i = 0; i < dd->ipath_rcvegrcnt; i++) + ipath_pe_put_tid(dd, &tidbase[i], 1, tidinv); +} + +/** + * ipath_pe_tidtemplate - setup constants for TID updates + * @dd: the infinipath device + * + * We setup stuff that we use a lot, to avoid calculating each time + */ +static void ipath_pe_tidtemplate(struct ipath_devdata *dd) +{ + u32 egrsize = dd->ipath_rcvegrbufsize; + + /* For now, we always allocate 4KB buffers (at init) so we can + * receive max size packets. We may want a module parameter to + * specify 2KB or 4KB and/or make be per port instead of per device + * for those who want to reduce memory footprint. Note that the + * ipath_rcvhdrentsize size must be large enough to hold the largest + * IB header (currently 96 bytes) that we expect to handle (plus of + * course the 2 dwords of RHF). + */ + if (egrsize == 2048) + dd->ipath_tidtemplate = 1U << 29; + else if (egrsize == 4096) + dd->ipath_tidtemplate = 2U << 29; + else { + egrsize = 4096; + dev_info(&dd->pcidev->dev, "BUG: unsupported egrbufsize " + "%u, using %u\n", dd->ipath_rcvegrbufsize, + egrsize); + dd->ipath_tidtemplate = 2U << 29; + } + dd->ipath_tidinvalid = 0; +} + +static int ipath_pe_early_init(struct ipath_devdata *dd) +{ + dd->ipath_flags |= IPATH_4BYTE_TID; + + /* + * For openfabrics, we need to be able to handle an IB header of + * 24 dwords. HT chip has arbitrary sized receive buffers, so we + * made them the same size as the PIO buffers. This chip does not + * handle arbitrary size buffers, so we need the header large enough + * to handle largest IB header, but still have room for a 2KB MTU + * standard IB packet. + */ + dd->ipath_rcvhdrentsize = 24; + dd->ipath_rcvhdrsize = IPATH_DFLT_RCVHDRSIZE; + + /* + * To truly support a 4KB MTU (for usermode), we need to + * bump this to a larger value. For now, we use them for + * the kernel only. + */ + dd->ipath_rcvegrbufsize = 2048; + /* + * the min() check here is currently a nop, but it may not always + * be, depending on just how we do ipath_rcvegrbufsize + */ + dd->ipath_ibmaxlen = min(dd->ipath_piosize2k, + dd->ipath_rcvegrbufsize + + (dd->ipath_rcvhdrentsize << 2)); + dd->ipath_init_ibmaxlen = dd->ipath_ibmaxlen; + + /* + * We can request a receive interrupt for 1 or + * more packets from current offset. For now, we set this + * up for a single packet. + */ + dd->ipath_rhdrhead_intr_off = 1ULL<<32; + + ipath_get_eeprom_info(dd); + + return 0; +} + +int __attribute__((weak)) ipath_unordered_wc(void) +{ + return 0; +} + +/** + * ipath_init_pe_get_base_info - set chip-specific flags for user code + * @dd: the infinipath device + * @kbase: ipath_base_info pointer + * + * We set the PCIE flag because the lower bandwidth on PCIe vs + * HyperTransport can affect some user packet algorithims. + */ +static int ipath_pe_get_base_info(struct ipath_portdata *pd, void *kbase) +{ + struct ipath_base_info *kinfo = kbase; + + if (ipath_unordered_wc()) { + kinfo->spi_runtime_flags |= IPATH_RUNTIME_FORCE_WC_ORDER; + ipath_cdbg(PROC, "Intel processor, forcing WC order\n"); + } + else + ipath_cdbg(PROC, "Not Intel processor, WC ordered\n"); + + kinfo->spi_runtime_flags |= IPATH_RUNTIME_PCIE; + + return 0; +} + +/** + * ipath_init_iba6120_funcs - set up the chip-specific function pointers + * @dd: the infinipath device + * + * This is global, and is called directly at init to set up the + * chip-specific function pointers for later use. + */ +void ipath_init_iba6120_funcs(struct ipath_devdata *dd) +{ + dd->ipath_f_intrsetup = ipath_pe_intconfig; + dd->ipath_f_bus = ipath_setup_pe_config; + dd->ipath_f_reset = ipath_setup_pe_reset; + dd->ipath_f_get_boardname = ipath_pe_boardname; + dd->ipath_f_init_hwerrors = ipath_pe_init_hwerrors; + dd->ipath_f_early_init = ipath_pe_early_init; + dd->ipath_f_handle_hwerrors = ipath_pe_handle_hwerrors; + dd->ipath_f_quiet_serdes = ipath_pe_quiet_serdes; + dd->ipath_f_bringup_serdes = ipath_pe_bringup_serdes; + dd->ipath_f_clear_tids = ipath_pe_clear_tids; + dd->ipath_f_put_tid = ipath_pe_put_tid; + dd->ipath_f_cleanup = ipath_setup_pe_cleanup; + dd->ipath_f_setextled = ipath_setup_pe_setextled; + dd->ipath_f_get_base_info = ipath_pe_get_base_info; + + /* initialize chip-specific variables */ + dd->ipath_f_tidtemplate = ipath_pe_tidtemplate; + + /* + * setup the register offsets, since they are different for each + * chip + */ + dd->ipath_kregs = &ipath_pe_kregs; + dd->ipath_cregs = &ipath_pe_cregs; + + ipath_init_pe_variables(); +} + diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index f8accc79b92..2530686f689 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -236,7 +236,7 @@ struct ipath_devdata { u64 ipath_tidtemplate; /* value to write to free TIDs */ u64 ipath_tidinvalid; - /* PE-800 rcv interrupt setup */ + /* IBA6120 rcv interrupt setup */ u64 ipath_rhdrhead_intr_off; /* size of memory at ipath_kregbase */ @@ -621,10 +621,8 @@ void ipath_free_data(struct ipath_portdata *dd); int ipath_waitfor_mdio_cmdready(struct ipath_devdata *); int ipath_waitfor_complete(struct ipath_devdata *, ipath_kreg, u64, u64 *); u32 __iomem *ipath_getpiobuf(struct ipath_devdata *, u32 *); -/* init PE-800-specific func */ -void ipath_init_pe800_funcs(struct ipath_devdata *); -/* init HT-400-specific func */ -void ipath_init_ht400_funcs(struct ipath_devdata *); +void ipath_init_iba6120_funcs(struct ipath_devdata *); +void ipath_init_iba6110_funcs(struct ipath_devdata *); void ipath_get_eeprom_info(struct ipath_devdata *); u64 ipath_snap_cntr(struct ipath_devdata *, ipath_creg); diff --git a/drivers/infiniband/hw/ipath/ipath_pe800.c b/drivers/infiniband/hw/ipath/ipath_pe800.c deleted file mode 100644 index b83f66d8262..00000000000 --- a/drivers/infiniband/hw/ipath/ipath_pe800.c +++ /dev/null @@ -1,1254 +0,0 @@ -/* - * Copyright (c) 2006 QLogic, Inc. All rights reserved. - * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. - * - * This software is available to you under a choice of one of two - * licenses. You may choose to be licensed under the terms of the GNU - * General Public License (GPL) Version 2, available from the file - * COPYING in the main directory of this source tree, or the - * OpenIB.org BSD license below: - * - * Redistribution and use in source and binary forms, with or - * without modification, are permitted provided that the following - * conditions are met: - * - * - Redistributions of source code must retain the above - * copyright notice, this list of conditions and the following - * disclaimer. - * - * - Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials - * provided with the distribution. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ -/* - * This file contains all of the code that is specific to the - * InfiniPath PE-800 chip. - */ - -#include -#include -#include - - -#include "ipath_kernel.h" -#include "ipath_registers.h" - -/* - * This file contains all the chip-specific register information and - * access functions for the QLogic InfiniPath PE800, the PCI-Express chip. - * - * This lists the InfiniPath PE800 registers, in the actual chip layout. - * This structure should never be directly accessed. - */ -struct _infinipath_do_not_use_kernel_regs { - unsigned long long Revision; - unsigned long long Control; - unsigned long long PageAlign; - unsigned long long PortCnt; - unsigned long long DebugPortSelect; - unsigned long long Reserved0; - unsigned long long SendRegBase; - unsigned long long UserRegBase; - unsigned long long CounterRegBase; - unsigned long long Scratch; - unsigned long long Reserved1; - unsigned long long Reserved2; - unsigned long long IntBlocked; - unsigned long long IntMask; - unsigned long long IntStatus; - unsigned long long IntClear; - unsigned long long ErrorMask; - unsigned long long ErrorStatus; - unsigned long long ErrorClear; - unsigned long long HwErrMask; - unsigned long long HwErrStatus; - unsigned long long HwErrClear; - unsigned long long HwDiagCtrl; - unsigned long long MDIO; - unsigned long long IBCStatus; - unsigned long long IBCCtrl; - unsigned long long ExtStatus; - unsigned long long ExtCtrl; - unsigned long long GPIOOut; - unsigned long long GPIOMask; - unsigned long long GPIOStatus; - unsigned long long GPIOClear; - unsigned long long RcvCtrl; - unsigned long long RcvBTHQP; - unsigned long long RcvHdrSize; - unsigned long long RcvHdrCnt; - unsigned long long RcvHdrEntSize; - unsigned long long RcvTIDBase; - unsigned long long RcvTIDCnt; - unsigned long long RcvEgrBase; - unsigned long long RcvEgrCnt; - unsigned long long RcvBufBase; - unsigned long long RcvBufSize; - unsigned long long RxIntMemBase; - unsigned long long RxIntMemSize; - unsigned long long RcvPartitionKey; - unsigned long long Reserved3; - unsigned long long RcvPktLEDCnt; - unsigned long long Reserved4[8]; - unsigned long long SendCtrl; - unsigned long long SendPIOBufBase; - unsigned long long SendPIOSize; - unsigned long long SendPIOBufCnt; - unsigned long long SendPIOAvailAddr; - unsigned long long TxIntMemBase; - unsigned long long TxIntMemSize; - unsigned long long Reserved5; - unsigned long long PCIeRBufTestReg0; - unsigned long long PCIeRBufTestReg1; - unsigned long long Reserved51[6]; - unsigned long long SendBufferError; - unsigned long long SendBufferErrorCONT1; - unsigned long long Reserved6SBE[6]; - unsigned long long RcvHdrAddr0; - unsigned long long RcvHdrAddr1; - unsigned long long RcvHdrAddr2; - unsigned long long RcvHdrAddr3; - unsigned long long RcvHdrAddr4; - unsigned long long Reserved7RHA[11]; - unsigned long long RcvHdrTailAddr0; - unsigned long long RcvHdrTailAddr1; - unsigned long long RcvHdrTailAddr2; - unsigned long long RcvHdrTailAddr3; - unsigned long long RcvHdrTailAddr4; - unsigned long long Reserved8RHTA[11]; - unsigned long long Reserved9SW[8]; - unsigned long long SerdesConfig0; - unsigned long long SerdesConfig1; - unsigned long long SerdesStatus; - unsigned long long XGXSConfig; - unsigned long long IBPLLCfg; - unsigned long long Reserved10SW2[3]; - unsigned long long PCIEQ0SerdesConfig0; - unsigned long long PCIEQ0SerdesConfig1; - unsigned long long PCIEQ0SerdesStatus; - unsigned long long Reserved11; - unsigned long long PCIEQ1SerdesConfig0; - unsigned long long PCIEQ1SerdesConfig1; - unsigned long long PCIEQ1SerdesStatus; - unsigned long long Reserved12; -}; - -#define IPATH_KREG_OFFSET(field) (offsetof(struct \ - _infinipath_do_not_use_kernel_regs, field) / sizeof(u64)) -#define IPATH_CREG_OFFSET(field) (offsetof( \ - struct infinipath_counters, field) / sizeof(u64)) - -static const struct ipath_kregs ipath_pe_kregs = { - .kr_control = IPATH_KREG_OFFSET(Control), - .kr_counterregbase = IPATH_KREG_OFFSET(CounterRegBase), - .kr_debugportselect = IPATH_KREG_OFFSET(DebugPortSelect), - .kr_errorclear = IPATH_KREG_OFFSET(ErrorClear), - .kr_errormask = IPATH_KREG_OFFSET(ErrorMask), - .kr_errorstatus = IPATH_KREG_OFFSET(ErrorStatus), - .kr_extctrl = IPATH_KREG_OFFSET(ExtCtrl), - .kr_extstatus = IPATH_KREG_OFFSET(ExtStatus), - .kr_gpio_clear = IPATH_KREG_OFFSET(GPIOClear), - .kr_gpio_mask = IPATH_KREG_OFFSET(GPIOMask), - .kr_gpio_out = IPATH_KREG_OFFSET(GPIOOut), - .kr_gpio_status = IPATH_KREG_OFFSET(GPIOStatus), - .kr_hwdiagctrl = IPATH_KREG_OFFSET(HwDiagCtrl), - .kr_hwerrclear = IPATH_KREG_OFFSET(HwErrClear), - .kr_hwerrmask = IPATH_KREG_OFFSET(HwErrMask), - .kr_hwerrstatus = IPATH_KREG_OFFSET(HwErrStatus), - .kr_ibcctrl = IPATH_KREG_OFFSET(IBCCtrl), - .kr_ibcstatus = IPATH_KREG_OFFSET(IBCStatus), - .kr_intblocked = IPATH_KREG_OFFSET(IntBlocked), - .kr_intclear = IPATH_KREG_OFFSET(IntClear), - .kr_intmask = IPATH_KREG_OFFSET(IntMask), - .kr_intstatus = IPATH_KREG_OFFSET(IntStatus), - .kr_mdio = IPATH_KREG_OFFSET(MDIO), - .kr_pagealign = IPATH_KREG_OFFSET(PageAlign), - .kr_partitionkey = IPATH_KREG_OFFSET(RcvPartitionKey), - .kr_portcnt = IPATH_KREG_OFFSET(PortCnt), - .kr_rcvbthqp = IPATH_KREG_OFFSET(RcvBTHQP), - .kr_rcvbufbase = IPATH_KREG_OFFSET(RcvBufBase), - .kr_rcvbufsize = IPATH_KREG_OFFSET(RcvBufSize), - .kr_rcvctrl = IPATH_KREG_OFFSET(RcvCtrl), - .kr_rcvegrbase = IPATH_KREG_OFFSET(RcvEgrBase), - .kr_rcvegrcnt = IPATH_KREG_OFFSET(RcvEgrCnt), - .kr_rcvhdrcnt = IPATH_KREG_OFFSET(RcvHdrCnt), - .kr_rcvhdrentsize = IPATH_KREG_OFFSET(RcvHdrEntSize), - .kr_rcvhdrsize = IPATH_KREG_OFFSET(RcvHdrSize), - .kr_rcvintmembase = IPATH_KREG_OFFSET(RxIntMemBase), - .kr_rcvintmemsize = IPATH_KREG_OFFSET(RxIntMemSize), - .kr_rcvtidbase = IPATH_KREG_OFFSET(RcvTIDBase), - .kr_rcvtidcnt = IPATH_KREG_OFFSET(RcvTIDCnt), - .kr_revision = IPATH_KREG_OFFSET(Revision), - .kr_scratch = IPATH_KREG_OFFSET(Scratch), - .kr_sendbuffererror = IPATH_KREG_OFFSET(SendBufferError), - .kr_sendctrl = IPATH_KREG_OFFSET(SendCtrl), - .kr_sendpioavailaddr = IPATH_KREG_OFFSET(SendPIOAvailAddr), - .kr_sendpiobufbase = IPATH_KREG_OFFSET(SendPIOBufBase), - .kr_sendpiobufcnt = IPATH_KREG_OFFSET(SendPIOBufCnt), - .kr_sendpiosize = IPATH_KREG_OFFSET(SendPIOSize), - .kr_sendregbase = IPATH_KREG_OFFSET(SendRegBase), - .kr_txintmembase = IPATH_KREG_OFFSET(TxIntMemBase), - .kr_txintmemsize = IPATH_KREG_OFFSET(TxIntMemSize), - .kr_userregbase = IPATH_KREG_OFFSET(UserRegBase), - .kr_serdesconfig0 = IPATH_KREG_OFFSET(SerdesConfig0), - .kr_serdesconfig1 = IPATH_KREG_OFFSET(SerdesConfig1), - .kr_serdesstatus = IPATH_KREG_OFFSET(SerdesStatus), - .kr_xgxsconfig = IPATH_KREG_OFFSET(XGXSConfig), - .kr_ibpllcfg = IPATH_KREG_OFFSET(IBPLLCfg), - - /* - * These should not be used directly via ipath_read_kreg64(), - * use them with ipath_read_kreg64_port() - */ - .kr_rcvhdraddr = IPATH_KREG_OFFSET(RcvHdrAddr0), - .kr_rcvhdrtailaddr = IPATH_KREG_OFFSET(RcvHdrTailAddr0), - - /* This group is pe-800-specific; and used only in this file */ - /* The rcvpktled register controls one of the debug port signals, so - * a packet activity LED can be connected to it. */ - .kr_rcvpktledcnt = IPATH_KREG_OFFSET(RcvPktLEDCnt), - .kr_pcierbuftestreg0 = IPATH_KREG_OFFSET(PCIeRBufTestReg0), - .kr_pcierbuftestreg1 = IPATH_KREG_OFFSET(PCIeRBufTestReg1), - .kr_pcieq0serdesconfig0 = IPATH_KREG_OFFSET(PCIEQ0SerdesConfig0), - .kr_pcieq0serdesconfig1 = IPATH_KREG_OFFSET(PCIEQ0SerdesConfig1), - .kr_pcieq0serdesstatus = IPATH_KREG_OFFSET(PCIEQ0SerdesStatus), - .kr_pcieq1serdesconfig0 = IPATH_KREG_OFFSET(PCIEQ1SerdesConfig0), - .kr_pcieq1serdesconfig1 = IPATH_KREG_OFFSET(PCIEQ1SerdesConfig1), - .kr_pcieq1serdesstatus = IPATH_KREG_OFFSET(PCIEQ1SerdesStatus) -}; - -static const struct ipath_cregs ipath_pe_cregs = { - .cr_badformatcnt = IPATH_CREG_OFFSET(RxBadFormatCnt), - .cr_erricrccnt = IPATH_CREG_OFFSET(RxICRCErrCnt), - .cr_errlinkcnt = IPATH_CREG_OFFSET(RxLinkProblemCnt), - .cr_errlpcrccnt = IPATH_CREG_OFFSET(RxLPCRCErrCnt), - .cr_errpkey = IPATH_CREG_OFFSET(RxPKeyMismatchCnt), - .cr_errrcvflowctrlcnt = IPATH_CREG_OFFSET(RxFlowCtrlErrCnt), - .cr_err_rlencnt = IPATH_CREG_OFFSET(RxLenErrCnt), - .cr_errslencnt = IPATH_CREG_OFFSET(TxLenErrCnt), - .cr_errtidfull = IPATH_CREG_OFFSET(RxTIDFullErrCnt), - .cr_errtidvalid = IPATH_CREG_OFFSET(RxTIDValidErrCnt), - .cr_errvcrccnt = IPATH_CREG_OFFSET(RxVCRCErrCnt), - .cr_ibstatuschange = IPATH_CREG_OFFSET(IBStatusChangeCnt), - .cr_intcnt = IPATH_CREG_OFFSET(LBIntCnt), - .cr_invalidrlencnt = IPATH_CREG_OFFSET(RxMaxMinLenErrCnt), - .cr_invalidslencnt = IPATH_CREG_OFFSET(TxMaxMinLenErrCnt), - .cr_lbflowstallcnt = IPATH_CREG_OFFSET(LBFlowStallCnt), - .cr_pktrcvcnt = IPATH_CREG_OFFSET(RxDataPktCnt), - .cr_pktrcvflowctrlcnt = IPATH_CREG_OFFSET(RxFlowPktCnt), - .cr_pktsendcnt = IPATH_CREG_OFFSET(TxDataPktCnt), - .cr_pktsendflowcnt = IPATH_CREG_OFFSET(TxFlowPktCnt), - .cr_portovflcnt = IPATH_CREG_OFFSET(RxP0HdrEgrOvflCnt), - .cr_rcvebpcnt = IPATH_CREG_OFFSET(RxEBPCnt), - .cr_rcvovflcnt = IPATH_CREG_OFFSET(RxBufOvflCnt), - .cr_senddropped = IPATH_CREG_OFFSET(TxDroppedPktCnt), - .cr_sendstallcnt = IPATH_CREG_OFFSET(TxFlowStallCnt), - .cr_sendunderruncnt = IPATH_CREG_OFFSET(TxUnderrunCnt), - .cr_wordrcvcnt = IPATH_CREG_OFFSET(RxDwordCnt), - .cr_wordsendcnt = IPATH_CREG_OFFSET(TxDwordCnt), - .cr_unsupvlcnt = IPATH_CREG_OFFSET(TxUnsupVLErrCnt), - .cr_rxdroppktcnt = IPATH_CREG_OFFSET(RxDroppedPktCnt), - .cr_iblinkerrrecovcnt = IPATH_CREG_OFFSET(IBLinkErrRecoveryCnt), - .cr_iblinkdowncnt = IPATH_CREG_OFFSET(IBLinkDownedCnt), - .cr_ibsymbolerrcnt = IPATH_CREG_OFFSET(IBSymbolErrCnt) -}; - -/* kr_intstatus, kr_intclear, kr_intmask bits */ -#define INFINIPATH_I_RCVURG_MASK 0x1F -#define INFINIPATH_I_RCVAVAIL_MASK 0x1F - -/* kr_hwerrclear, kr_hwerrmask, kr_hwerrstatus, bits */ -#define INFINIPATH_HWE_PCIEMEMPARITYERR_MASK 0x000000000000003fULL -#define INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT 0 -#define INFINIPATH_HWE_PCIEPOISONEDTLP 0x0000000010000000ULL -#define INFINIPATH_HWE_PCIECPLTIMEOUT 0x0000000020000000ULL -#define INFINIPATH_HWE_PCIEBUSPARITYXTLH 0x0000000040000000ULL -#define INFINIPATH_HWE_PCIEBUSPARITYXADM 0x0000000080000000ULL -#define INFINIPATH_HWE_PCIEBUSPARITYRADM 0x0000000100000000ULL -#define INFINIPATH_HWE_COREPLL_FBSLIP 0x0080000000000000ULL -#define INFINIPATH_HWE_COREPLL_RFSLIP 0x0100000000000000ULL -#define INFINIPATH_HWE_PCIE1PLLFAILED 0x0400000000000000ULL -#define INFINIPATH_HWE_PCIE0PLLFAILED 0x0800000000000000ULL -#define INFINIPATH_HWE_SERDESPLLFAILED 0x1000000000000000ULL - -/* kr_extstatus bits */ -#define INFINIPATH_EXTS_FREQSEL 0x2 -#define INFINIPATH_EXTS_SERDESSEL 0x4 -#define INFINIPATH_EXTS_MEMBIST_ENDTEST 0x0000000000004000 -#define INFINIPATH_EXTS_MEMBIST_FOUND 0x0000000000008000 - -#define _IPATH_GPIO_SDA_NUM 1 -#define _IPATH_GPIO_SCL_NUM 0 - -#define IPATH_GPIO_SDA (1ULL << \ - (_IPATH_GPIO_SDA_NUM+INFINIPATH_EXTC_GPIOOE_SHIFT)) -#define IPATH_GPIO_SCL (1ULL << \ - (_IPATH_GPIO_SCL_NUM+INFINIPATH_EXTC_GPIOOE_SHIFT)) - -/** - * ipath_pe_handle_hwerrors - display hardware errors. - * @dd: the infinipath device - * @msg: the output buffer - * @msgl: the size of the output buffer - * - * Use same msg buffer as regular errors to avoid excessive stack - * use. Most hardware errors are catastrophic, but for right now, - * we'll print them and continue. We reuse the same message buffer as - * ipath_handle_errors() to avoid excessive stack usage. - */ -static void ipath_pe_handle_hwerrors(struct ipath_devdata *dd, char *msg, - size_t msgl) -{ - ipath_err_t hwerrs; - u32 bits, ctrl; - int isfatal = 0; - char bitsmsg[64]; - - hwerrs = ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus); - if (!hwerrs) { - /* - * better than printing cofusing messages - * This seems to be related to clearing the crc error, or - * the pll error during init. - */ - ipath_cdbg(VERBOSE, "Called but no hardware errors set\n"); - return; - } else if (hwerrs == ~0ULL) { - ipath_dev_err(dd, "Read of hardware error status failed " - "(all bits set); ignoring\n"); - return; - } - ipath_stats.sps_hwerrs++; - - /* Always clear the error status register, except MEMBISTFAIL, - * regardless of whether we continue or stop using the chip. - * We want that set so we know it failed, even across driver reload. - * We'll still ignore it in the hwerrmask. We do this partly for - * diagnostics, but also for support */ - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrclear, - hwerrs&~INFINIPATH_HWE_MEMBISTFAILED); - - hwerrs &= dd->ipath_hwerrmask; - - /* - * make sure we get this much out, unless told to be quiet, - * or it's occurred within the last 5 seconds - */ - if ((hwerrs & ~dd->ipath_lasthwerror) || - (ipath_debug & __IPATH_VERBDBG)) - dev_info(&dd->pcidev->dev, "Hardware error: hwerr=0x%llx " - "(cleared)\n", (unsigned long long) hwerrs); - dd->ipath_lasthwerror |= hwerrs; - - if (hwerrs & ~infinipath_hwe_bitsextant) - ipath_dev_err(dd, "hwerror interrupt with unknown errors " - "%llx set\n", (unsigned long long) - (hwerrs & ~infinipath_hwe_bitsextant)); - - ctrl = ipath_read_kreg32(dd, dd->ipath_kregs->kr_control); - if (ctrl & INFINIPATH_C_FREEZEMODE) { - if (hwerrs) { - /* - * if any set that we aren't ignoring only make the - * complaint once, in case it's stuck or recurring, - * and we get here multiple times - */ - if (dd->ipath_flags & IPATH_INITTED) { - ipath_dev_err(dd, "Fatal Error (freeze " - "mode), no longer usable\n"); - isfatal = 1; - } - /* - * Mark as having had an error for driver, and also - * for /sys and status word mapped to user programs. - * This marks unit as not usable, until reset - */ - *dd->ipath_statusp &= ~IPATH_STATUS_IB_READY; - *dd->ipath_statusp |= IPATH_STATUS_HWERROR; - dd->ipath_flags &= ~IPATH_INITTED; - } else { - ipath_dbg("Clearing freezemode on ignored hardware " - "error\n"); - ctrl &= ~INFINIPATH_C_FREEZEMODE; - ipath_write_kreg(dd, dd->ipath_kregs->kr_control, - ctrl); - } - } - - *msg = '\0'; - - if (hwerrs & INFINIPATH_HWE_MEMBISTFAILED) { - strlcat(msg, "[Memory BIST test failed, PE-800 unusable]", - msgl); - /* ignore from now on, so disable until driver reloaded */ - *dd->ipath_statusp |= IPATH_STATUS_HWERROR; - dd->ipath_hwerrmask &= ~INFINIPATH_HWE_MEMBISTFAILED; - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, - dd->ipath_hwerrmask); - } - if (hwerrs & (INFINIPATH_HWE_RXEMEMPARITYERR_MASK - << INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT)) { - bits = (u32) ((hwerrs >> - INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT) & - INFINIPATH_HWE_RXEMEMPARITYERR_MASK); - snprintf(bitsmsg, sizeof bitsmsg, "[RXE Parity Errs %x] ", - bits); - strlcat(msg, bitsmsg, msgl); - } - if (hwerrs & (INFINIPATH_HWE_TXEMEMPARITYERR_MASK - << INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT)) { - bits = (u32) ((hwerrs >> - INFINIPATH_HWE_TXEMEMPARITYERR_SHIFT) & - INFINIPATH_HWE_TXEMEMPARITYERR_MASK); - snprintf(bitsmsg, sizeof bitsmsg, "[TXE Parity Errs %x] ", - bits); - strlcat(msg, bitsmsg, msgl); - } - if (hwerrs & (INFINIPATH_HWE_PCIEMEMPARITYERR_MASK - << INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT)) { - bits = (u32) ((hwerrs >> - INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT) & - INFINIPATH_HWE_PCIEMEMPARITYERR_MASK); - snprintf(bitsmsg, sizeof bitsmsg, - "[PCIe Mem Parity Errs %x] ", bits); - strlcat(msg, bitsmsg, msgl); - } - if (hwerrs & INFINIPATH_HWE_IBCBUSTOSPCPARITYERR) - strlcat(msg, "[IB2IPATH Parity]", msgl); - if (hwerrs & INFINIPATH_HWE_IBCBUSFRSPCPARITYERR) - strlcat(msg, "[IPATH2IB Parity]", msgl); - -#define _IPATH_PLL_FAIL (INFINIPATH_HWE_COREPLL_FBSLIP | \ - INFINIPATH_HWE_COREPLL_RFSLIP ) - - if (hwerrs & _IPATH_PLL_FAIL) { - snprintf(bitsmsg, sizeof bitsmsg, - "[PLL failed (%llx), PE-800 unusable]", - (unsigned long long) hwerrs & _IPATH_PLL_FAIL); - strlcat(msg, bitsmsg, msgl); - /* ignore from now on, so disable until driver reloaded */ - dd->ipath_hwerrmask &= ~(hwerrs & _IPATH_PLL_FAIL); - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, - dd->ipath_hwerrmask); - } - - if (hwerrs & INFINIPATH_HWE_SERDESPLLFAILED) { - /* - * If it occurs, it is left masked since the eternal - * interface is unused - */ - dd->ipath_hwerrmask &= ~INFINIPATH_HWE_SERDESPLLFAILED; - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrmask, - dd->ipath_hwerrmask); - } - - if (hwerrs & INFINIPATH_HWE_PCIEPOISONEDTLP) - strlcat(msg, "[PCIe Poisoned TLP]", msgl); - if (hwerrs & INFINIPATH_HWE_PCIECPLTIMEOUT) - strlcat(msg, "[PCIe completion timeout]", msgl); - - /* - * In practice, it's unlikely wthat we'll see PCIe PLL, or bus - * parity or memory parity error failures, because most likely we - * won't be able to talk to the core of the chip. Nonetheless, we - * might see them, if they are in parts of the PCIe core that aren't - * essential. - */ - if (hwerrs & INFINIPATH_HWE_PCIE1PLLFAILED) - strlcat(msg, "[PCIePLL1]", msgl); - if (hwerrs & INFINIPATH_HWE_PCIE0PLLFAILED) - strlcat(msg, "[PCIePLL0]", msgl); - if (hwerrs & INFINIPATH_HWE_PCIEBUSPARITYXTLH) - strlcat(msg, "[PCIe XTLH core parity]", msgl); - if (hwerrs & INFINIPATH_HWE_PCIEBUSPARITYXADM) - strlcat(msg, "[PCIe ADM TX core parity]", msgl); - if (hwerrs & INFINIPATH_HWE_PCIEBUSPARITYRADM) - strlcat(msg, "[PCIe ADM RX core parity]", msgl); - - if (hwerrs & INFINIPATH_HWE_RXDSYNCMEMPARITYERR) - strlcat(msg, "[Rx Dsync]", msgl); - if (hwerrs & INFINIPATH_HWE_SERDESPLLFAILED) - strlcat(msg, "[SerDes PLL]", msgl); - - ipath_dev_err(dd, "%s hardware error\n", msg); - if (isfatal && !ipath_diag_inuse && dd->ipath_freezemsg) { - /* - * for /sys status file ; if no trailing } is copied, we'll - * know it was truncated. - */ - snprintf(dd->ipath_freezemsg, dd->ipath_freezelen, - "{%s}", msg); - } -} - -/** - * ipath_pe_boardname - fill in the board name - * @dd: the infinipath device - * @name: the output buffer - * @namelen: the size of the output buffer - * - * info is based on the board revision register - */ -static int ipath_pe_boardname(struct ipath_devdata *dd, char *name, - size_t namelen) -{ - char *n = NULL; - u8 boardrev = dd->ipath_boardrev; - int ret; - - switch (boardrev) { - case 0: - n = "InfiniPath_Emulation"; - break; - case 1: - n = "InfiniPath_PE-800-Bringup"; - break; - case 2: - n = "InfiniPath_PE-880"; - break; - case 3: - n = "InfiniPath_PE-850"; - break; - case 4: - n = "InfiniPath_PE-860"; - break; - default: - ipath_dev_err(dd, - "Don't yet know about board with ID %u\n", - boardrev); - snprintf(name, namelen, "Unknown_InfiniPath_PE-8xx_%u", - boardrev); - break; - } - if (n) - snprintf(name, namelen, "%s", n); - - if (dd->ipath_majrev != 4 || !dd->ipath_minrev || dd->ipath_minrev>2) { - ipath_dev_err(dd, "Unsupported PE-800 revision %u.%u!\n", - dd->ipath_majrev, dd->ipath_minrev); - ret = 1; - } else - ret = 0; - - return ret; -} - -/** - * ipath_pe_init_hwerrors - enable hardware errors - * @dd: the infinipath device - * - * now that we have finished initializing everything that might reasonably - * cause a hardware error, and cleared those errors bits as they occur, - * we can enable hardware errors in the mask (potentially enabling - * freeze mode), and enable hardware errors as errors (along with - * everything else) in errormask - */ -static void ipath_pe_init_hwerrors(struct ipath_devdata *dd) -{ - ipath_err_t val; - u64 extsval; - - extsval = ipath_read_kreg64(dd, dd->ipath_kregs->kr_extstatus); - - if (!(extsval & INFINIPATH_EXTS_MEMBIST_ENDTEST)) - ipath_dev_err(dd, "MemBIST did not complete!\n"); - - val = ~0ULL; /* barring bugs, all hwerrors become interrupts, */ - - if (!dd->ipath_boardrev) // no PLL for Emulator - val &= ~INFINIPATH_HWE_SERDESPLLFAILED; - - /* workaround bug 9460 in internal interface bus parity checking */ - val &= ~INFINIPATH_HWE_PCIEBUSPARITYRADM; - - dd->ipath_hwerrmask = val; -} - -/** - * ipath_pe_bringup_serdes - bring up the serdes - * @dd: the infinipath device - */ -static int ipath_pe_bringup_serdes(struct ipath_devdata *dd) -{ - u64 val, tmp, config1; - int ret = 0, change = 0; - - ipath_dbg("Trying to bringup serdes\n"); - - if (ipath_read_kreg64(dd, dd->ipath_kregs->kr_hwerrstatus) & - INFINIPATH_HWE_SERDESPLLFAILED) { - ipath_dbg("At start, serdes PLL failed bit set " - "in hwerrstatus, clearing and continuing\n"); - ipath_write_kreg(dd, dd->ipath_kregs->kr_hwerrclear, - INFINIPATH_HWE_SERDESPLLFAILED); - } - - val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0); - config1 = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig1); - - ipath_cdbg(VERBOSE, "SerDes status config0=%llx config1=%llx, " - "xgxsconfig %llx\n", (unsigned long long) val, - (unsigned long long) config1, (unsigned long long) - ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig)); - - /* - * Force reset on, also set rxdetect enable. Must do before reading - * serdesstatus at least for simulation, or some of the bits in - * serdes status will come back as undefined and cause simulation - * failures - */ - val |= INFINIPATH_SERDC0_RESET_PLL | INFINIPATH_SERDC0_RXDETECT_EN - | INFINIPATH_SERDC0_L1PWR_DN; - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); - /* be sure chip saw it */ - tmp = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); - udelay(5); /* need pll reset set at least for a bit */ - /* - * after PLL is reset, set the per-lane Resets and TxIdle and - * clear the PLL reset and rxdetect (to get falling edge). - * Leave L1PWR bits set (permanently) - */ - val &= ~(INFINIPATH_SERDC0_RXDETECT_EN | INFINIPATH_SERDC0_RESET_PLL - | INFINIPATH_SERDC0_L1PWR_DN); - val |= INFINIPATH_SERDC0_RESET_MASK | INFINIPATH_SERDC0_TXIDLE; - ipath_cdbg(VERBOSE, "Clearing pll reset and setting lane resets " - "and txidle (%llx)\n", (unsigned long long) val); - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); - /* be sure chip saw it */ - tmp = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); - /* need PLL reset clear for at least 11 usec before lane - * resets cleared; give it a few more to be sure */ - udelay(15); - val &= ~(INFINIPATH_SERDC0_RESET_MASK | INFINIPATH_SERDC0_TXIDLE); - - ipath_cdbg(VERBOSE, "Clearing lane resets and txidle " - "(writing %llx)\n", (unsigned long long) val); - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); - /* be sure chip saw it */ - val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); - - val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig); - if (((val >> INFINIPATH_XGXS_MDIOADDR_SHIFT) & - INFINIPATH_XGXS_MDIOADDR_MASK) != 3) { - val &= - ~(INFINIPATH_XGXS_MDIOADDR_MASK << - INFINIPATH_XGXS_MDIOADDR_SHIFT); - /* MDIO address 3 */ - val |= 3ULL << INFINIPATH_XGXS_MDIOADDR_SHIFT; - change = 1; - } - if (val & INFINIPATH_XGXS_RESET) { - val &= ~INFINIPATH_XGXS_RESET; - change = 1; - } - if (change) - ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val); - - val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0); - - /* clear current and de-emphasis bits */ - config1 &= ~0x0ffffffff00ULL; - /* set current to 20ma */ - config1 |= 0x00000000000ULL; - /* set de-emphasis to -5.68dB */ - config1 |= 0x0cccc000000ULL; - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig1, config1); - - ipath_cdbg(VERBOSE, "done: SerDes status config0=%llx " - "config1=%llx, sstatus=%llx xgxs=%llx\n", - (unsigned long long) val, (unsigned long long) config1, - (unsigned long long) - ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesstatus), - (unsigned long long) - ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig)); - - if (!ipath_waitfor_mdio_cmdready(dd)) { - ipath_write_kreg( - dd, dd->ipath_kregs->kr_mdio, - ipath_mdio_req(IPATH_MDIO_CMD_READ, 31, - IPATH_MDIO_CTRL_XGXS_REG_8, 0)); - if (ipath_waitfor_complete(dd, dd->ipath_kregs->kr_mdio, - IPATH_MDIO_DATAVALID, &val)) - ipath_dbg("Never got MDIO data for XGXS " - "status read\n"); - else - ipath_cdbg(VERBOSE, "MDIO Read reg8, " - "'bank' 31 %x\n", (u32) val); - } else - ipath_dbg("Never got MDIO cmdready for XGXS status read\n"); - - return ret; -} - -/** - * ipath_pe_quiet_serdes - set serdes to txidle - * @dd: the infinipath device - * Called when driver is being unloaded - */ -static void ipath_pe_quiet_serdes(struct ipath_devdata *dd) -{ - u64 val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_serdesconfig0); - - val |= INFINIPATH_SERDC0_TXIDLE; - ipath_dbg("Setting TxIdleEn on serdes (config0 = %llx)\n", - (unsigned long long) val); - ipath_write_kreg(dd, dd->ipath_kregs->kr_serdesconfig0, val); -} - -/* this is not yet needed on the PE800, so just return 0. */ -static int ipath_pe_intconfig(struct ipath_devdata *dd) -{ - return 0; -} - -/** - * ipath_setup_pe_setextled - set the state of the two external LEDs - * @dd: the infinipath device - * @lst: the L state - * @ltst: the LT state - - * These LEDs indicate the physical and logical state of IB link. - * For this chip (at least with recommended board pinouts), LED1 - * is Yellow (logical state) and LED2 is Green (physical state), - * - * Note: We try to match the Mellanox HCA LED behavior as best - * we can. Green indicates physical link state is OK (something is - * plugged in, and we can train). - * Amber indicates the link is logically up (ACTIVE). - * Mellanox further blinks the amber LED to indicate data packet - * activity, but we have no hardware support for that, so it would - * require waking up every 10-20 msecs and checking the counters - * on the chip, and then turning the LED off if appropriate. That's - * visible overhead, so not something we will do. - * - */ -static void ipath_setup_pe_setextled(struct ipath_devdata *dd, u64 lst, - u64 ltst) -{ - u64 extctl; - - /* the diags use the LED to indicate diag info, so we leave - * the external LED alone when the diags are running */ - if (ipath_diag_inuse) - return; - - extctl = dd->ipath_extctrl & ~(INFINIPATH_EXTC_LED1PRIPORT_ON | - INFINIPATH_EXTC_LED2PRIPORT_ON); - - if (ltst & INFINIPATH_IBCS_LT_STATE_LINKUP) - extctl |= INFINIPATH_EXTC_LED2PRIPORT_ON; - if (lst == INFINIPATH_IBCS_L_STATE_ACTIVE) - extctl |= INFINIPATH_EXTC_LED1PRIPORT_ON; - dd->ipath_extctrl = extctl; - ipath_write_kreg(dd, dd->ipath_kregs->kr_extctrl, extctl); -} - -/** - * ipath_setup_pe_cleanup - clean up any per-chip chip-specific stuff - * @dd: the infinipath device - * - * This is called during driver unload. - * We do the pci_disable_msi here, not in generic code, because it - * isn't used for the HT-400. If we do end up needing pci_enable_msi - * at some point in the future for HT-400, we'll move the call back - * into the main init_one code. - */ -static void ipath_setup_pe_cleanup(struct ipath_devdata *dd) -{ - dd->ipath_msi_lo = 0; /* just in case unload fails */ - pci_disable_msi(dd->pcidev); -} - -/** - * ipath_setup_pe_config - setup PCIe config related stuff - * @dd: the infinipath device - * @pdev: the PCI device - * - * The pci_enable_msi() call will fail on systems with MSI quirks - * such as those with AMD8131, even if the device of interest is not - * attached to that device, (in the 2.6.13 - 2.6.15 kernels, at least, fixed - * late in 2.6.16). - * All that can be done is to edit the kernel source to remove the quirk - * check until that is fixed. - * We do not need to call enable_msi() for our HyperTransport chip (HT-400), - * even those it uses MSI, and we want to avoid the quirk warning, so - * So we call enable_msi only for the PE-800. If we do end up needing - * pci_enable_msi at some point in the future for HT-400, we'll move the - * call back into the main init_one code. - * We save the msi lo and hi values, so we can restore them after - * chip reset (the kernel PCI infrastructure doesn't yet handle that - * correctly). - */ -static int ipath_setup_pe_config(struct ipath_devdata *dd, - struct pci_dev *pdev) -{ - int pos, ret; - - dd->ipath_msi_lo = 0; /* used as a flag during reset processing */ - ret = pci_enable_msi(dd->pcidev); - if (ret) - ipath_dev_err(dd, "pci_enable_msi failed: %d, " - "interrupts may not work\n", ret); - /* continue even if it fails, we may still be OK... */ - - if ((pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_MSI))) { - u16 control; - pci_read_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_LO, - &dd->ipath_msi_lo); - pci_read_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_HI, - &dd->ipath_msi_hi); - pci_read_config_word(dd->pcidev, pos + PCI_MSI_FLAGS, - &control); - /* now save the data (vector) info */ - pci_read_config_word(dd->pcidev, - pos + ((control & PCI_MSI_FLAGS_64BIT) - ? 12 : 8), - &dd->ipath_msi_data); - ipath_cdbg(VERBOSE, "Read msi data 0x%x from config offset " - "0x%x, control=0x%x\n", dd->ipath_msi_data, - pos + ((control & PCI_MSI_FLAGS_64BIT) ? 12 : 8), - control); - /* we save the cachelinesize also, although it doesn't - * really matter */ - pci_read_config_byte(dd->pcidev, PCI_CACHE_LINE_SIZE, - &dd->ipath_pci_cacheline); - } else - ipath_dev_err(dd, "Can't find MSI capability, " - "can't save MSI settings for reset\n"); - if ((pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_EXP))) { - u16 linkstat; - pci_read_config_word(dd->pcidev, pos + PCI_EXP_LNKSTA, - &linkstat); - linkstat >>= 4; - linkstat &= 0x1f; - if (linkstat != 8) - ipath_dev_err(dd, "PCIe width %u, " - "performance reduced\n", linkstat); - } - else - ipath_dev_err(dd, "Can't find PCI Express " - "capability!\n"); - return 0; -} - -static void ipath_init_pe_variables(void) -{ - /* - * bits for selecting i2c direction and values, - * used for I2C serial flash - */ - ipath_gpio_sda_num = _IPATH_GPIO_SDA_NUM; - ipath_gpio_scl_num = _IPATH_GPIO_SCL_NUM; - ipath_gpio_sda = IPATH_GPIO_SDA; - ipath_gpio_scl = IPATH_GPIO_SCL; - - /* variables for sanity checking interrupt and errors */ - infinipath_hwe_bitsextant = - (INFINIPATH_HWE_RXEMEMPARITYERR_MASK << - INFINIPATH_HWE_RXEMEMPARITYERR_SHIFT) | - (INFINIPATH_HWE_PCIEMEMPARITYERR_MASK << - INFINIPATH_HWE_PCIEMEMPARITYERR_SHIFT) | - INFINIPATH_HWE_PCIE1PLLFAILED | - INFINIPATH_HWE_PCIE0PLLFAILED | - INFINIPATH_HWE_PCIEPOISONEDTLP | - INFINIPATH_HWE_PCIECPLTIMEOUT | - INFINIPATH_HWE_PCIEBUSPARITYXTLH | - INFINIPATH_HWE_PCIEBUSPARITYXADM | - INFINIPATH_HWE_PCIEBUSPARITYRADM | - INFINIPATH_HWE_MEMBISTFAILED | - INFINIPATH_HWE_COREPLL_FBSLIP | - INFINIPATH_HWE_COREPLL_RFSLIP | - INFINIPATH_HWE_SERDESPLLFAILED | - INFINIPATH_HWE_IBCBUSTOSPCPARITYERR | - INFINIPATH_HWE_IBCBUSFRSPCPARITYERR; - infinipath_i_bitsextant = - (INFINIPATH_I_RCVURG_MASK << INFINIPATH_I_RCVURG_SHIFT) | - (INFINIPATH_I_RCVAVAIL_MASK << - INFINIPATH_I_RCVAVAIL_SHIFT) | - INFINIPATH_I_ERROR | INFINIPATH_I_SPIOSENT | - INFINIPATH_I_SPIOBUFAVAIL | INFINIPATH_I_GPIO; - infinipath_e_bitsextant = - INFINIPATH_E_RFORMATERR | INFINIPATH_E_RVCRC | - INFINIPATH_E_RICRC | INFINIPATH_E_RMINPKTLEN | - INFINIPATH_E_RMAXPKTLEN | INFINIPATH_E_RLONGPKTLEN | - INFINIPATH_E_RSHORTPKTLEN | INFINIPATH_E_RUNEXPCHAR | - INFINIPATH_E_RUNSUPVL | INFINIPATH_E_REBP | - INFINIPATH_E_RIBFLOW | INFINIPATH_E_RBADVERSION | - INFINIPATH_E_RRCVEGRFULL | INFINIPATH_E_RRCVHDRFULL | - INFINIPATH_E_RBADTID | INFINIPATH_E_RHDRLEN | - INFINIPATH_E_RHDR | INFINIPATH_E_RIBLOSTLINK | - INFINIPATH_E_SMINPKTLEN | INFINIPATH_E_SMAXPKTLEN | - INFINIPATH_E_SUNDERRUN | INFINIPATH_E_SPKTLEN | - INFINIPATH_E_SDROPPEDSMPPKT | INFINIPATH_E_SDROPPEDDATAPKT | - INFINIPATH_E_SPIOARMLAUNCH | INFINIPATH_E_SUNEXPERRPKTNUM | - INFINIPATH_E_SUNSUPVL | INFINIPATH_E_IBSTATUSCHANGED | - INFINIPATH_E_INVALIDADDR | INFINIPATH_E_RESET | - INFINIPATH_E_HARDWARE; - - infinipath_i_rcvavail_mask = INFINIPATH_I_RCVAVAIL_MASK; - infinipath_i_rcvurg_mask = INFINIPATH_I_RCVURG_MASK; -} - -/* setup the MSI stuff again after a reset. I'd like to just call - * pci_enable_msi() and request_irq() again, but when I do that, - * the MSI enable bit doesn't get set in the command word, and - * we switch to to a different interrupt vector, which is confusing, - * so I instead just do it all inline. Perhaps somehow can tie this - * into the PCIe hotplug support at some point - * Note, because I'm doing it all here, I don't call pci_disable_msi() - * or free_irq() at the start of ipath_setup_pe_reset(). - */ -static int ipath_reinit_msi(struct ipath_devdata *dd) -{ - int pos; - u16 control; - int ret; - - if (!dd->ipath_msi_lo) { - dev_info(&dd->pcidev->dev, "Can't restore MSI config, " - "initial setup failed?\n"); - ret = 0; - goto bail; - } - - if (!(pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_MSI))) { - ipath_dev_err(dd, "Can't find MSI capability, " - "can't restore MSI settings\n"); - ret = 0; - goto bail; - } - ipath_cdbg(VERBOSE, "Writing msi_lo 0x%x to config offset 0x%x\n", - dd->ipath_msi_lo, pos + PCI_MSI_ADDRESS_LO); - pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_LO, - dd->ipath_msi_lo); - ipath_cdbg(VERBOSE, "Writing msi_lo 0x%x to config offset 0x%x\n", - dd->ipath_msi_hi, pos + PCI_MSI_ADDRESS_HI); - pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_HI, - dd->ipath_msi_hi); - pci_read_config_word(dd->pcidev, pos + PCI_MSI_FLAGS, &control); - if (!(control & PCI_MSI_FLAGS_ENABLE)) { - ipath_cdbg(VERBOSE, "MSI control at off %x was %x, " - "setting MSI enable (%x)\n", pos + PCI_MSI_FLAGS, - control, control | PCI_MSI_FLAGS_ENABLE); - control |= PCI_MSI_FLAGS_ENABLE; - pci_write_config_word(dd->pcidev, pos + PCI_MSI_FLAGS, - control); - } - /* now rewrite the data (vector) info */ - pci_write_config_word(dd->pcidev, pos + - ((control & PCI_MSI_FLAGS_64BIT) ? 12 : 8), - dd->ipath_msi_data); - /* we restore the cachelinesize also, although it doesn't really - * matter */ - pci_write_config_byte(dd->pcidev, PCI_CACHE_LINE_SIZE, - dd->ipath_pci_cacheline); - /* and now set the pci master bit again */ - pci_set_master(dd->pcidev); - ret = 1; - -bail: - return ret; -} - -/* This routine sleeps, so it can only be called from user context, not - * from interrupt context. If we need interrupt context, we can split - * it into two routines. -*/ -static int ipath_setup_pe_reset(struct ipath_devdata *dd) -{ - u64 val; - int i; - int ret; - - /* Use ERROR so it shows up in logs, etc. */ - ipath_dev_err(dd, "Resetting PE-800 unit %u\n", - dd->ipath_unit); - /* keep chip from being accessed in a few places */ - dd->ipath_flags &= ~(IPATH_INITTED|IPATH_PRESENT); - val = dd->ipath_control | INFINIPATH_C_RESET; - ipath_write_kreg(dd, dd->ipath_kregs->kr_control, val); - mb(); - - for (i = 1; i <= 5; i++) { - int r; - /* allow MBIST, etc. to complete; longer on each retry. - * We sometimes get machine checks from bus timeout if no - * response, so for now, make it *really* long. - */ - msleep(1000 + (1 + i) * 2000); - if ((r = - pci_write_config_dword(dd->pcidev, PCI_BASE_ADDRESS_0, - dd->ipath_pcibar0))) - ipath_dev_err(dd, "rewrite of BAR0 failed: %d\n", - r); - if ((r = - pci_write_config_dword(dd->pcidev, PCI_BASE_ADDRESS_1, - dd->ipath_pcibar1))) - ipath_dev_err(dd, "rewrite of BAR1 failed: %d\n", - r); - /* now re-enable memory access */ - if ((r = pci_enable_device(dd->pcidev))) - ipath_dev_err(dd, "pci_enable_device failed after " - "reset: %d\n", r); - /* whether it worked or not, mark as present, again */ - dd->ipath_flags |= IPATH_PRESENT; - val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_revision); - if (val == dd->ipath_revision) { - ipath_cdbg(VERBOSE, "Got matching revision " - "register %llx on try %d\n", - (unsigned long long) val, i); - ret = ipath_reinit_msi(dd); - goto bail; - } - /* Probably getting -1 back */ - ipath_dbg("Didn't get expected revision register, " - "got %llx, try %d\n", (unsigned long long) val, - i + 1); - } - ret = 0; /* failed */ - -bail: - return ret; -} - -/** - * ipath_pe_put_tid - write a TID in chip - * @dd: the infinipath device - * @tidptr: pointer to the expected TID (in chip) to udpate - * @tidtype: 0 for eager, 1 for expected - * @pa: physical address of in memory buffer; ipath_tidinvalid if freeing - * - * This exists as a separate routine to allow for special locking etc. - * It's used for both the full cleanup on exit, as well as the normal - * setup and teardown. - */ -static void ipath_pe_put_tid(struct ipath_devdata *dd, u64 __iomem *tidptr, - u32 type, unsigned long pa) -{ - u32 __iomem *tidp32 = (u32 __iomem *)tidptr; - unsigned long flags = 0; /* keep gcc quiet */ - - if (pa != dd->ipath_tidinvalid) { - if (pa & ((1U << 11) - 1)) { - dev_info(&dd->pcidev->dev, "BUG: physaddr %lx " - "not 4KB aligned!\n", pa); - return; - } - pa >>= 11; - /* paranoia check */ - if (pa & (7<<29)) - ipath_dev_err(dd, - "BUG: Physical page address 0x%lx " - "has bits set in 31-29\n", pa); - - if (type == 0) - pa |= dd->ipath_tidtemplate; - else /* for now, always full 4KB page */ - pa |= 2 << 29; - } - - /* workaround chip bug 9437 by writing each TID twice - * and holding a spinlock around the writes, so they don't - * intermix with other TID (eager or expected) writes - * Unfortunately, this call can be done from interrupt level - * for the port 0 eager TIDs, so we have to use irqsave - */ - spin_lock_irqsave(&dd->ipath_tid_lock, flags); - ipath_write_kreg(dd, dd->ipath_kregs->kr_scratch, 0xfeeddeaf); - if (dd->ipath_kregbase) - writel(pa, tidp32); - ipath_write_kreg(dd, dd->ipath_kregs->kr_scratch, 0xdeadbeef); - mmiowb(); - spin_unlock_irqrestore(&dd->ipath_tid_lock, flags); -} - -/** - * ipath_pe_clear_tid - clear all TID entries for a port, expected and eager - * @dd: the infinipath device - * @port: the port - * - * clear all TID entries for a port, expected and eager. - * Used from ipath_close(). On PE800, TIDs are only 32 bits, - * not 64, but they are still on 64 bit boundaries, so tidbase - * is declared as u64 * for the pointer math, even though we write 32 bits - */ -static void ipath_pe_clear_tids(struct ipath_devdata *dd, unsigned port) -{ - u64 __iomem *tidbase; - unsigned long tidinv; - int i; - - if (!dd->ipath_kregbase) - return; - - ipath_cdbg(VERBOSE, "Invalidate TIDs for port %u\n", port); - - tidinv = dd->ipath_tidinvalid; - tidbase = (u64 __iomem *) - ((char __iomem *)(dd->ipath_kregbase) + - dd->ipath_rcvtidbase + - port * dd->ipath_rcvtidcnt * sizeof(*tidbase)); - - for (i = 0; i < dd->ipath_rcvtidcnt; i++) - ipath_pe_put_tid(dd, &tidbase[i], 0, tidinv); - - tidbase = (u64 __iomem *) - ((char __iomem *)(dd->ipath_kregbase) + - dd->ipath_rcvegrbase + - port * dd->ipath_rcvegrcnt * sizeof(*tidbase)); - - for (i = 0; i < dd->ipath_rcvegrcnt; i++) - ipath_pe_put_tid(dd, &tidbase[i], 1, tidinv); -} - -/** - * ipath_pe_tidtemplate - setup constants for TID updates - * @dd: the infinipath device - * - * We setup stuff that we use a lot, to avoid calculating each time - */ -static void ipath_pe_tidtemplate(struct ipath_devdata *dd) -{ - u32 egrsize = dd->ipath_rcvegrbufsize; - - /* For now, we always allocate 4KB buffers (at init) so we can - * receive max size packets. We may want a module parameter to - * specify 2KB or 4KB and/or make be per port instead of per device - * for those who want to reduce memory footprint. Note that the - * ipath_rcvhdrentsize size must be large enough to hold the largest - * IB header (currently 96 bytes) that we expect to handle (plus of - * course the 2 dwords of RHF). - */ - if (egrsize == 2048) - dd->ipath_tidtemplate = 1U << 29; - else if (egrsize == 4096) - dd->ipath_tidtemplate = 2U << 29; - else { - egrsize = 4096; - dev_info(&dd->pcidev->dev, "BUG: unsupported egrbufsize " - "%u, using %u\n", dd->ipath_rcvegrbufsize, - egrsize); - dd->ipath_tidtemplate = 2U << 29; - } - dd->ipath_tidinvalid = 0; -} - -static int ipath_pe_early_init(struct ipath_devdata *dd) -{ - dd->ipath_flags |= IPATH_4BYTE_TID; - - /* - * For openib, we need to be able to handle an IB header of 96 bytes - * or 24 dwords. HT-400 has arbitrary sized receive buffers, so we - * made them the same size as the PIO buffers. The PE-800 does not - * handle arbitrary size buffers, so we need the header large enough - * to handle largest IB header, but still have room for a 2KB MTU - * standard IB packet. - */ - dd->ipath_rcvhdrentsize = 24; - dd->ipath_rcvhdrsize = IPATH_DFLT_RCVHDRSIZE; - - /* For HT-400, we allocate a somewhat overly large eager buffer, - * such that we can guarantee that we can receive the largest packet - * that we can send out. To truly support a 4KB MTU, we need to - * bump this to a larger value. We'll do this when I get around to - * testing 4KB sends on the PE-800, which I have not yet done. - */ - dd->ipath_rcvegrbufsize = 2048; - /* - * the min() check here is currently a nop, but it may not always - * be, depending on just how we do ipath_rcvegrbufsize - */ - dd->ipath_ibmaxlen = min(dd->ipath_piosize2k, - dd->ipath_rcvegrbufsize + - (dd->ipath_rcvhdrentsize << 2)); - dd->ipath_init_ibmaxlen = dd->ipath_ibmaxlen; - - /* - * For PE-800, we can request a receive interrupt for 1 or - * more packets from current offset. For now, we set this - * up for a single packet, to match the HT-400 behavior. - */ - dd->ipath_rhdrhead_intr_off = 1ULL<<32; - - ipath_get_eeprom_info(dd); - - return 0; -} - -int __attribute__((weak)) ipath_unordered_wc(void) -{ - return 0; -} - -/** - * ipath_init_pe_get_base_info - set chip-specific flags for user code - * @dd: the infinipath device - * @kbase: ipath_base_info pointer - * - * We set the PCIE flag because the lower bandwidth on PCIe vs - * HyperTransport can affect some user packet algorithims. - */ -static int ipath_pe_get_base_info(struct ipath_portdata *pd, void *kbase) -{ - struct ipath_base_info *kinfo = kbase; - - if (ipath_unordered_wc()) { - kinfo->spi_runtime_flags |= IPATH_RUNTIME_FORCE_WC_ORDER; - ipath_cdbg(PROC, "Intel processor, forcing WC order\n"); - } - else - ipath_cdbg(PROC, "Not Intel processor, WC ordered\n"); - - kinfo->spi_runtime_flags |= IPATH_RUNTIME_PCIE; - - return 0; -} - -/** - * ipath_init_pe800_funcs - set up the chip-specific function pointers - * @dd: the infinipath device - * - * This is global, and is called directly at init to set up the - * chip-specific function pointers for later use. - */ -void ipath_init_pe800_funcs(struct ipath_devdata *dd) -{ - dd->ipath_f_intrsetup = ipath_pe_intconfig; - dd->ipath_f_bus = ipath_setup_pe_config; - dd->ipath_f_reset = ipath_setup_pe_reset; - dd->ipath_f_get_boardname = ipath_pe_boardname; - dd->ipath_f_init_hwerrors = ipath_pe_init_hwerrors; - dd->ipath_f_early_init = ipath_pe_early_init; - dd->ipath_f_handle_hwerrors = ipath_pe_handle_hwerrors; - dd->ipath_f_quiet_serdes = ipath_pe_quiet_serdes; - dd->ipath_f_bringup_serdes = ipath_pe_bringup_serdes; - dd->ipath_f_clear_tids = ipath_pe_clear_tids; - dd->ipath_f_put_tid = ipath_pe_put_tid; - dd->ipath_f_cleanup = ipath_setup_pe_cleanup; - dd->ipath_f_setextled = ipath_setup_pe_setextled; - dd->ipath_f_get_base_info = ipath_pe_get_base_info; - - /* initialize chip-specific variables */ - dd->ipath_f_tidtemplate = ipath_pe_tidtemplate; - - /* - * setup the register offsets, since they are different for each - * chip - */ - dd->ipath_kregs = &ipath_pe_kregs; - dd->ipath_cregs = &ipath_pe_cregs; - - ipath_init_pe_variables(); -} - diff --git a/drivers/infiniband/hw/ipath/ipath_registers.h b/drivers/infiniband/hw/ipath/ipath_registers.h index 89df8f5ea99..f08c86088ca 100644 --- a/drivers/infiniband/hw/ipath/ipath_registers.h +++ b/drivers/infiniband/hw/ipath/ipath_registers.h @@ -36,8 +36,7 @@ /* * This file should only be included by kernel source, and by the diags. It - * defines the registers, and their contents, for the InfiniPath HT-400 - * chip. + * defines the registers, and their contents, for InfiniPath chips. */ /* @@ -286,7 +285,7 @@ #define INFINIPATH_RT_ADDR_MASK 0xFFFFFFFFFFULL /* 40 bits valid */ -/* TID entries (memory), HT400-only */ +/* TID entries (memory), HT-only */ #define INFINIPATH_RT_VALID 0x8000000000000000ULL #define INFINIPATH_RT_ADDR_SHIFT 0 #define INFINIPATH_RT_BUFSIZE_MASK 0x3FFF -- cgit v1.2.3-70-g09d2 From ff0b8597ec3e7db6b37130a195cb3d673dafea27 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:40 -0700 Subject: IB/ipath: add serial number to hardware freeze error message Also added the word "Hardware" after "Fatal" to make it more obvious that it's hardware, not software. Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_iba6110.c | 5 +++-- drivers/infiniband/hw/ipath/ipath_iba6120.c | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c index 5076738aff3..7028c98e5c4 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6110.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c @@ -461,8 +461,9 @@ static void ipath_ht_handle_hwerrors(struct ipath_devdata *dd, char *msg, * times. */ if (dd->ipath_flags & IPATH_INITTED) { - ipath_dev_err(dd, "Fatal Error (freeze " - "mode), no longer usable\n"); + ipath_dev_err(dd, "Fatal Hardware Error (freeze " + "mode), no longer usable, SN %.16s\n", + dd->ipath_serial); isfatal = 1; } *dd->ipath_statusp &= ~IPATH_STATUS_IB_READY; diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c index f4233baaa33..3a7640be253 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6120.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c @@ -363,8 +363,9 @@ static void ipath_pe_handle_hwerrors(struct ipath_devdata *dd, char *msg, * and we get here multiple times */ if (dd->ipath_flags & IPATH_INITTED) { - ipath_dev_err(dd, "Fatal Error (freeze " - "mode), no longer usable\n"); + ipath_dev_err(dd, "Fatal Hardware Error (freeze " + "mode), no longer usable, SN %.16s\n", + dd->ipath_serial); isfatal = 1; } /* -- cgit v1.2.3-70-g09d2 From fc8cf8cdfc3ce328c577b18ebcd60a5595f2a283 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:41 -0700 Subject: IB/ipath: be more strict about testing the modify QP verb Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_qp.c | 33 +++++++++++++++++++++++++++++-- drivers/infiniband/hw/ipath/ipath_verbs.h | 1 + 2 files changed, 32 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index c0267cf8ca8..502d555fdf3 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -455,11 +455,16 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, attr_mask)) goto inval; - if (attr_mask & IB_QP_AV) + if (attr_mask & IB_QP_AV) { if (attr->ah_attr.dlid == 0 || attr->ah_attr.dlid >= IPATH_MULTICAST_LID_BASE) goto inval; + if ((attr->ah_attr.ah_flags & IB_AH_GRH) && + (attr->ah_attr.grh.sgid_index > 1)) + goto inval; + } + if (attr_mask & IB_QP_PKEY_INDEX) if (attr->pkey_index >= ipath_get_npkeys(dev->dd)) goto inval; @@ -468,6 +473,27 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, if (attr->min_rnr_timer > 31) goto inval; + if (attr_mask & IB_QP_PORT) + if (attr->port_num == 0 || + attr->port_num > ibqp->device->phys_port_cnt) + goto inval; + + if (attr_mask & IB_QP_PATH_MTU) + if (attr->path_mtu > IB_MTU_4096) + goto inval; + + if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) + if (attr->max_dest_rd_atomic > 1) + goto inval; + + if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) + if (attr->max_rd_atomic > 1) + goto inval; + + if (attr_mask & IB_QP_PATH_MIG_STATE) + if (attr->path_mig_state != IB_MIG_MIGRATED) + goto inval; + switch (new_state) { case IB_QPS_RESET: ipath_reset_qp(qp); @@ -518,6 +544,9 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, if (attr_mask & IB_QP_MIN_RNR_TIMER) qp->r_min_rnr_timer = attr->min_rnr_timer; + if (attr_mask & IB_QP_TIMEOUT) + qp->timeout = attr->timeout; + if (attr_mask & IB_QP_QKEY) qp->qkey = attr->qkey; @@ -564,7 +593,7 @@ int ipath_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, attr->max_dest_rd_atomic = 1; attr->min_rnr_timer = qp->r_min_rnr_timer; attr->port_num = 1; - attr->timeout = 0; + attr->timeout = qp->timeout; attr->retry_cnt = qp->s_retry_cnt; attr->rnr_retry = qp->s_rnr_retry; attr->alt_port_num = 0; diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h index 9cc0dbfe860..f2956090d93 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.h +++ b/drivers/infiniband/hw/ipath/ipath_verbs.h @@ -371,6 +371,7 @@ struct ipath_qp { u8 s_retry; /* requester retry counter */ u8 s_rnr_retry; /* requester RNR retry counter */ u8 s_pkey_index; /* PKEY index to use */ + u8 timeout; /* Timeout for this QP */ enum ib_mtu path_mtu; u32 remote_qpn; u32 qkey; /* QKEY for this QP (for UD or RD) */ -- cgit v1.2.3-70-g09d2 From ca4ce383acfb05b8035453cdbbfd4f8ae36c7a69 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:42 -0700 Subject: IB/ipath: validate path_mig_state properly Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_qp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index 502d555fdf3..77391886d2f 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -491,7 +491,8 @@ int ipath_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, goto inval; if (attr_mask & IB_QP_PATH_MIG_STATE) - if (attr->path_mig_state != IB_MIG_MIGRATED) + if (attr->path_mig_state != IB_MIG_MIGRATED && + attr->path_mig_state != IB_MIG_REARM) goto inval; switch (new_state) { -- cgit v1.2.3-70-g09d2 From 0b81e4f79af8322c7142701982f40d1431dedf19 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:43 -0700 Subject: IB/ipath: put a limit on the number of QPs that can be created Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_qp.c | 15 +++++++++++++++ drivers/infiniband/hw/ipath/ipath_verbs.c | 7 ++++++- drivers/infiniband/hw/ipath/ipath_verbs.h | 4 ++++ 3 files changed, 25 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index 77391886d2f..607ba72af2f 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -833,9 +833,21 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd, } } + spin_lock(&dev->n_qps_lock); + if (dev->n_qps_allocated == ib_ipath_max_qps) { + spin_unlock(&dev->n_qps_lock); + ret = ERR_PTR(-ENOMEM); + goto bail_ip; + } + + dev->n_qps_allocated++; + spin_unlock(&dev->n_qps_lock); + ret = &qp->ibqp; goto bail; +bail_ip: + kfree(qp->ip); bail_rwq: vfree(qp->r_rq.wq); bail_qp: @@ -864,6 +876,9 @@ int ipath_destroy_qp(struct ib_qp *ibqp) spin_lock_irqsave(&qp->s_lock, flags); qp->state = IB_QPS_ERR; spin_unlock_irqrestore(&qp->s_lock, flags); + spin_lock(&dev->n_qps_lock); + dev->n_qps_allocated--; + spin_unlock(&dev->n_qps_lock); /* Stop the sending tasklet. */ tasklet_kill(&qp->s_task); diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index ab0006288b4..b9be0fd2ed3 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -73,6 +73,10 @@ module_param_named(max_qp_wrs, ib_ipath_max_qp_wrs, uint, S_IWUSR | S_IRUGO); MODULE_PARM_DESC(max_qp_wrs, "Maximum number of QP WRs to support"); +unsigned int ib_ipath_max_qps = 16384; +module_param_named(max_qps, ib_ipath_max_qps, uint, S_IWUSR | S_IRUGO); +MODULE_PARM_DESC(max_qps, "Maximum number of QPs to support"); + unsigned int ib_ipath_max_sges = 0x60; module_param_named(max_sges, ib_ipath_max_sges, uint, S_IWUSR | S_IRUGO); MODULE_PARM_DESC(max_sges, "Maximum number of SGEs to support"); @@ -958,7 +962,7 @@ static int ipath_query_device(struct ib_device *ibdev, props->sys_image_guid = dev->sys_image_guid; props->max_mr_size = ~0ull; - props->max_qp = dev->qp_table.max; + props->max_qp = ib_ipath_max_qps; props->max_qp_wr = ib_ipath_max_qp_wrs; props->max_sge = ib_ipath_max_sges; props->max_cq = ib_ipath_max_cqs; @@ -1420,6 +1424,7 @@ int ipath_register_ib_device(struct ipath_devdata *dd) spin_lock_init(&idev->n_pds_lock); spin_lock_init(&idev->n_ahs_lock); spin_lock_init(&idev->n_cqs_lock); + spin_lock_init(&idev->n_qps_lock); spin_lock_init(&idev->n_srqs_lock); spin_lock_init(&idev->n_mcast_grps_lock); diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h index f2956090d93..09bbb3f9a21 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.h +++ b/drivers/infiniband/hw/ipath/ipath_verbs.h @@ -482,6 +482,8 @@ struct ipath_ibdev { spinlock_t n_ahs_lock; u32 n_cqs_allocated; /* number of CQs allocated for device */ spinlock_t n_cqs_lock; + u32 n_qps_allocated; /* number of QPs allocated for device */ + spinlock_t n_qps_lock; u32 n_srqs_allocated; /* number of SRQs allocated for device */ spinlock_t n_srqs_lock; u32 n_mcast_grps_allocated; /* number of mcast groups allocated */ @@ -792,6 +794,8 @@ extern unsigned int ib_ipath_max_cqs; extern unsigned int ib_ipath_max_qp_wrs; +extern unsigned int ib_ipath_max_qps; + extern unsigned int ib_ipath_max_sges; extern unsigned int ib_ipath_max_mcast_grps; -- cgit v1.2.3-70-g09d2 From a78aa6fb156f9954562c9539aeb25dbec1ffca10 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:44 -0700 Subject: IB/ipath: handle sq_sig_all field correctly Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_qp.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_qp.c b/drivers/infiniband/hw/ipath/ipath_qp.c index 607ba72af2f..224b0f40767 100644 --- a/drivers/infiniband/hw/ipath/ipath_qp.c +++ b/drivers/infiniband/hw/ipath/ipath_qp.c @@ -606,9 +606,10 @@ int ipath_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, init_attr->recv_cq = qp->ibqp.recv_cq; init_attr->srq = qp->ibqp.srq; init_attr->cap = attr->cap; - init_attr->sq_sig_type = - (qp->s_flags & (1 << IPATH_S_SIGNAL_REQ_WR)) - ? IB_SIGNAL_REQ_WR : 0; + if (qp->s_flags & (1 << IPATH_S_SIGNAL_REQ_WR)) + init_attr->sq_sig_type = IB_SIGNAL_REQ_WR; + else + init_attr->sq_sig_type = IB_SIGNAL_ALL_WR; init_attr->qp_type = qp->ibqp.qp_type; init_attr->port_num = 1; return 0; @@ -776,8 +777,10 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd, qp->s_wq = swq; qp->s_size = init_attr->cap.max_send_wr + 1; qp->s_max_sge = init_attr->cap.max_send_sge; - qp->s_flags = init_attr->sq_sig_type == IB_SIGNAL_REQ_WR ? - 1 << IPATH_S_SIGNAL_REQ_WR : 0; + if (init_attr->sq_sig_type == IB_SIGNAL_REQ_WR) + qp->s_flags = 1 << IPATH_S_SIGNAL_REQ_WR; + else + qp->s_flags = 0; dev = to_idev(ibpd->device); err = ipath_alloc_qpn(&dev->qp_table, qp, init_attr->qp_type); -- cgit v1.2.3-70-g09d2 From d821f02a6ebed97e35e0bc7575452cfc6f9073cb Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:45 -0700 Subject: IB/ipath: allow SMA to be disabled This is useful for testing purposes. Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_verbs.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index b9be0fd2ed3..fbda7739715 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -107,6 +107,10 @@ module_param_named(max_srq_wrs, ib_ipath_max_srq_wrs, uint, S_IWUSR | S_IRUGO); MODULE_PARM_DESC(max_srq_wrs, "Maximum number of SRQ WRs support"); +static unsigned int ib_ipath_disable_sma; +module_param_named(disable_sma, ib_ipath_disable_sma, uint, S_IWUSR | S_IRUGO); +MODULE_PARM_DESC(ib_ipath_disable_sma, "Disable the SMA"); + const int ib_ipath_state_ops[IB_QPS_ERR + 1] = { [IB_QPS_RESET] = 0, [IB_QPS_INIT] = IPATH_POST_RECV_OK, @@ -354,6 +358,9 @@ static void ipath_qp_rcv(struct ipath_ibdev *dev, switch (qp->ibqp.qp_type) { case IB_QPT_SMI: case IB_QPT_GSI: + if (ib_ipath_disable_sma) + break; + /* FALLTHROUGH */ case IB_QPT_UD: ipath_ud_rcv(dev, hdr, has_grh, data, tlen, qp); break; -- cgit v1.2.3-70-g09d2 From e35d710d0c5b74bc9833d6a3791706bd577a3724 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:46 -0700 Subject: IB/ipath: fix return value from ipath_poll This stops the generic poll code from waiting for a timeout. Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_file_ops.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index 6ba9a2d1e6e..29930e22318 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -1150,6 +1150,7 @@ static unsigned int ipath_poll(struct file *fp, struct ipath_portdata *pd; u32 head, tail; int bit; + unsigned pollflag = 0; struct ipath_devdata *dd; pd = port_fp(fp); @@ -1186,9 +1187,12 @@ static unsigned int ipath_poll(struct file *fp, clear_bit(IPATH_PORT_WAITING_RCV, &pd->port_flag); pd->port_rcvwait_to++; } + else + pollflag = POLLIN | POLLRDNORM; } else { /* it's already happened; don't do wait_event overhead */ + pollflag = POLLIN | POLLRDNORM; pd->port_rcvnowait++; } @@ -1196,7 +1200,7 @@ static unsigned int ipath_poll(struct file *fp, ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl, dd->ipath_rcvctrl); - return 0; + return pollflag; } static int try_alloc_port(struct ipath_devdata *dd, int port, -- cgit v1.2.3-70-g09d2 From 30fc5c3130bdbc7cc051a2d6054ad38360d408a8 Mon Sep 17 00:00:00 2001 From: Bryan O'Sullivan Date: Fri, 25 Aug 2006 11:24:48 -0700 Subject: IB/ipath: control receive polarity inversion Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ipath/ipath_driver.c | 17 ++++++++++++++++ drivers/infiniband/hw/ipath/ipath_iba6110.c | 9 +++++++++ drivers/infiniband/hw/ipath/ipath_iba6120.c | 9 +++++++++ drivers/infiniband/hw/ipath/ipath_kernel.h | 3 +++ drivers/infiniband/hw/ipath/ipath_registers.h | 2 ++ drivers/infiniband/hw/ipath/ipath_sysfs.c | 29 +++++++++++++++++++++++++++ 6 files changed, 69 insertions(+) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index 3a15efee738..47c9d15557c 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -2116,5 +2116,22 @@ bail: return ret; } +int ipath_set_rx_pol_inv(struct ipath_devdata *dd, u8 new_pol_inv) +{ + u64 val; + if ( new_pol_inv > INFINIPATH_XGXS_RX_POL_MASK ) { + return -1; + } + if ( dd->ipath_rx_pol_inv != new_pol_inv ) { + dd->ipath_rx_pol_inv = new_pol_inv; + val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig); + val &= ~(INFINIPATH_XGXS_RX_POL_MASK << + INFINIPATH_XGXS_RX_POL_SHIFT); + val |= ((u64)dd->ipath_rx_pol_inv) << + INFINIPATH_XGXS_RX_POL_SHIFT; + ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val); + } + return 0; +} module_init(infinipath_init); module_exit(infinipath_cleanup); diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c index 7028c98e5c4..bf2455a6d56 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6110.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c @@ -1290,6 +1290,15 @@ static int ipath_ht_bringup_serdes(struct ipath_devdata *dd) val &= ~INFINIPATH_XGXS_RESET; change = 1; } + if (((val >> INFINIPATH_XGXS_RX_POL_SHIFT) & + INFINIPATH_XGXS_RX_POL_MASK) != dd->ipath_rx_pol_inv ) { + /* need to compensate for Tx inversion in partner */ + val &= ~(INFINIPATH_XGXS_RX_POL_MASK << + INFINIPATH_XGXS_RX_POL_SHIFT); + val |= dd->ipath_rx_pol_inv << + INFINIPATH_XGXS_RX_POL_SHIFT; + change = 1; + } if (change) ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val); diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c index 3a7640be253..d86516d23df 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6120.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c @@ -654,6 +654,15 @@ static int ipath_pe_bringup_serdes(struct ipath_devdata *dd) val &= ~INFINIPATH_XGXS_RESET; change = 1; } + if (((val >> INFINIPATH_XGXS_RX_POL_SHIFT) & + INFINIPATH_XGXS_RX_POL_MASK) != dd->ipath_rx_pol_inv ) { + /* need to compensate for Tx inversion in partner */ + val &= ~(INFINIPATH_XGXS_RX_POL_MASK << + INFINIPATH_XGXS_RX_POL_SHIFT); + val |= dd->ipath_rx_pol_inv << + INFINIPATH_XGXS_RX_POL_SHIFT; + change = 1; + } if (change) ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val); diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index 2530686f689..a8a56276ff1 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h @@ -503,6 +503,8 @@ struct ipath_devdata { u8 ipath_pci_cacheline; /* LID mask control */ u8 ipath_lmc; + /* Rx Polarity inversion (compensate for ~tx on partner) */ + u8 ipath_rx_pol_inv; /* local link integrity counter */ u32 ipath_lli_counter; @@ -567,6 +569,7 @@ void ipath_get_faststats(unsigned long); int ipath_set_linkstate(struct ipath_devdata *, u8); int ipath_set_mtu(struct ipath_devdata *, u16); int ipath_set_lid(struct ipath_devdata *, u32, u8); +int ipath_set_rx_pol_inv(struct ipath_devdata *dd, u8 new_pol_inv); /* for use in system calls, where we want to know device type, etc. */ #define port_fp(fp) ((struct ipath_portdata *) (fp)->private_data) diff --git a/drivers/infiniband/hw/ipath/ipath_registers.h b/drivers/infiniband/hw/ipath/ipath_registers.h index f08c86088ca..6e23b3d632b 100644 --- a/drivers/infiniband/hw/ipath/ipath_registers.h +++ b/drivers/infiniband/hw/ipath/ipath_registers.h @@ -282,6 +282,8 @@ #define INFINIPATH_XGXS_RESET 0x7ULL #define INFINIPATH_XGXS_MDIOADDR_MASK 0xfULL #define INFINIPATH_XGXS_MDIOADDR_SHIFT 4 +#define INFINIPATH_XGXS_RX_POL_SHIFT 19 +#define INFINIPATH_XGXS_RX_POL_MASK 0xfULL #define INFINIPATH_RT_ADDR_MASK 0xFFFFFFFFFFULL /* 40 bits valid */ diff --git a/drivers/infiniband/hw/ipath/ipath_sysfs.c b/drivers/infiniband/hw/ipath/ipath_sysfs.c index 8476dd3c7af..e299148c4b6 100644 --- a/drivers/infiniband/hw/ipath/ipath_sysfs.c +++ b/drivers/infiniband/hw/ipath/ipath_sysfs.c @@ -561,6 +561,33 @@ bail: return ret; } +static ssize_t store_rx_pol_inv(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct ipath_devdata *dd = dev_get_drvdata(dev); + int ret, r; + u16 val; + + ret = ipath_parse_ushort(buf, &val); + if (ret < 0) + goto invalid; + + r = ipath_set_rx_pol_inv(dd, val); + if (r < 0) { + ret = r; + goto bail; + } + + goto bail; +invalid: + ipath_dev_err(dd, "attempt to set invalid Rx Polarity invert\n"); +bail: + return ret; +} + + static DRIVER_ATTR(num_units, S_IRUGO, show_num_units, NULL); static DRIVER_ATTR(version, S_IRUGO, show_version, NULL); @@ -587,6 +614,7 @@ static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); static DEVICE_ATTR(status_str, S_IRUGO, show_status_str, NULL); static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL); static DEVICE_ATTR(unit, S_IRUGO, show_unit, NULL); +static DEVICE_ATTR(rx_pol_inv, S_IWUSR, NULL, store_rx_pol_inv); static struct attribute *dev_attributes[] = { &dev_attr_guid.attr, @@ -601,6 +629,7 @@ static struct attribute *dev_attributes[] = { &dev_attr_boardversion.attr, &dev_attr_unit.attr, &dev_attr_enabled.attr, + &dev_attr_rx_pol_inv.attr, NULL }; -- cgit v1.2.3-70-g09d2 From b046a04e162dc7f468700a0817acda0321b2b3ae Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Mon, 28 Aug 2006 19:08:53 +0300 Subject: IB/mthca: Fix default static rate returned for Tavor in AV When default static rate is returned for Tavor, need to translate it to an ib rate value. Signed-off-by: Jack Morgenstein Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_av.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/mthca/mthca_av.c b/drivers/infiniband/hw/mthca/mthca_av.c index e215041b2db..69599455aca 100644 --- a/drivers/infiniband/hw/mthca/mthca_av.c +++ b/drivers/infiniband/hw/mthca/mthca_av.c @@ -90,7 +90,7 @@ static enum ib_rate tavor_rate_to_ib(u8 mthca_rate, u8 port_rate) case MTHCA_RATE_TAVOR_1X: return IB_RATE_2_5_GBPS; case MTHCA_RATE_TAVOR_1X_DDR: return IB_RATE_5_GBPS; case MTHCA_RATE_TAVOR_4X: return IB_RATE_10_GBPS; - default: return port_rate; + default: return mult_to_ib_rate(port_rate); } } -- cgit v1.2.3-70-g09d2 From f6f76725b5ed8085c602b16bfd309c9957fb84c8 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Mon, 28 Aug 2006 19:10:34 +0300 Subject: IB/mthca: Return port number for unconnected QPs in query_qp port_num was not being returned for unconnected QPs. Signed-off-by: Jack Morgenstein Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_qp.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index 6d6ba4180a3..4ac25cf0679 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -472,10 +472,14 @@ int mthca_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_m if (qp->transport == RC || qp->transport == UC) { to_ib_ah_attr(dev, &qp_attr->ah_attr, &context->pri_path); to_ib_ah_attr(dev, &qp_attr->alt_ah_attr, &context->alt_path); + qp_attr->alt_pkey_index = + be32_to_cpu(context->alt_path.port_pkey) & 0x7f; + qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num; } - qp_attr->pkey_index = be32_to_cpu(context->pri_path.port_pkey) & 0x7f; - qp_attr->alt_pkey_index = be32_to_cpu(context->alt_path.port_pkey) & 0x7f; + qp_attr->pkey_index = be32_to_cpu(context->pri_path.port_pkey) & 0x7f; + qp_attr->port_num = + (be32_to_cpu(context->pri_path.port_pkey) >> 24) & 0x3; /* qp_attr->en_sqd_async_notify is only applicable in modify qp */ qp_attr->sq_draining = mthca_state == MTHCA_QP_STATE_DRAINING; @@ -486,11 +490,9 @@ int mthca_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_m 1 << ((be32_to_cpu(context->params2) >> 21) & 0x7); qp_attr->min_rnr_timer = (be32_to_cpu(context->rnr_nextrecvpsn) >> 24) & 0x1f; - qp_attr->port_num = qp_attr->ah_attr.port_num; qp_attr->timeout = context->pri_path.ackto >> 3; qp_attr->retry_cnt = (be32_to_cpu(context->params1) >> 16) & 0x7; qp_attr->rnr_retry = context->pri_path.rnr_retry >> 5; - qp_attr->alt_port_num = qp_attr->alt_ah_attr.port_num; qp_attr->alt_timeout = context->alt_path.ackto >> 3; qp_init_attr->cap = qp_attr->cap; -- cgit v1.2.3-70-g09d2 From 9e583b85c2a0215dc7f4427361b4f75fcc0316af Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Mon, 28 Aug 2006 19:12:39 +0300 Subject: IB/mthca: Return correct number of bits for static rate in query_qp Incorrect number of bits was taken for static_rate field. Signed-off-by: Jack Morgenstein Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_qp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index 4ac25cf0679..9324b6204ac 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -408,7 +408,7 @@ static void to_ib_ah_attr(struct mthca_dev *dev, struct ib_ah_attr *ib_ah_attr, ib_ah_attr->sl = be32_to_cpu(path->sl_tclass_flowlabel) >> 28; ib_ah_attr->src_path_bits = path->g_mylmc & 0x7f; ib_ah_attr->static_rate = mthca_rate_to_ib(dev, - path->static_rate & 0x7, + path->static_rate & 0xf, ib_ah_attr->port_num); ib_ah_attr->ah_flags = (path->g_mylmc & (1 << 7)) ? IB_AH_GRH : 0; if (ib_ah_attr->ah_flags) { -- cgit v1.2.3-70-g09d2 From c1f250c0b45cdfdd89b21f2b866f317439aa21de Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Mon, 28 Aug 2006 11:55:52 -0700 Subject: IB/cm: Enable atomics along with RDMA reads Enable atomic operations along with RDMA reads if a local RDMA read/atomic depth is provided by the user. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- drivers/infiniband/core/cm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 0de335b7bfc..0df1454819a 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -3125,7 +3125,8 @@ static int cm_init_qp_init_attr(struct cm_id_private *cm_id_priv, qp_attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE; if (cm_id_priv->responder_resources) - qp_attr->qp_access_flags |= IB_ACCESS_REMOTE_READ; + qp_attr->qp_access_flags |= IB_ACCESS_REMOTE_READ | + IB_ACCESS_REMOTE_ATOMIC; qp_attr->pkey_index = cm_id_priv->av.pkey_index; qp_attr->port_num = cm_id_priv->av.port->port_num; ret = 0; -- cgit v1.2.3-70-g09d2 From 76842405fca5f8b8e08d91558ecd3b922265034a Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Mon, 28 Aug 2006 11:57:42 -0700 Subject: IB/cm: Use correct reject code for invalid GID Set the reject code properly when rejecting a request that contains an invalid GID. A suitable GID is returned by the IB CM in the additional reject information (ARI). This is a spec compliancy issue. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- drivers/infiniband/core/cm.c | 32 +++++++++++++++++++++----------- 1 file changed, 21 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 0df1454819a..1aad33e0352 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -1354,7 +1354,7 @@ static int cm_req_handler(struct cm_work *work) id.local_id); if (IS_ERR(cm_id_priv->timewait_info)) { ret = PTR_ERR(cm_id_priv->timewait_info); - goto error1; + goto destroy; } cm_id_priv->timewait_info->work.remote_id = req_msg->local_comm_id; cm_id_priv->timewait_info->remote_ca_guid = req_msg->local_ca_guid; @@ -1363,7 +1363,8 @@ static int cm_req_handler(struct cm_work *work) listen_cm_id_priv = cm_match_req(work, cm_id_priv); if (!listen_cm_id_priv) { ret = -EINVAL; - goto error2; + kfree(cm_id_priv->timewait_info); + goto destroy; } cm_id_priv->id.cm_handler = listen_cm_id_priv->id.cm_handler; @@ -1373,12 +1374,22 @@ static int cm_req_handler(struct cm_work *work) cm_format_paths_from_req(req_msg, &work->path[0], &work->path[1]); ret = cm_init_av_by_path(&work->path[0], &cm_id_priv->av); - if (ret) - goto error3; + if (ret) { + ib_get_cached_gid(work->port->cm_dev->device, + work->port->port_num, 0, &work->path[0].sgid); + ib_send_cm_rej(cm_id, IB_CM_REJ_INVALID_GID, + &work->path[0].sgid, sizeof work->path[0].sgid, + NULL, 0); + goto rejected; + } if (req_msg->alt_local_lid) { ret = cm_init_av_by_path(&work->path[1], &cm_id_priv->alt_av); - if (ret) - goto error3; + if (ret) { + ib_send_cm_rej(cm_id, IB_CM_REJ_INVALID_ALT_GID, + &work->path[0].sgid, + sizeof work->path[0].sgid, NULL, 0); + goto rejected; + } } cm_id_priv->tid = req_msg->hdr.tid; cm_id_priv->timeout_ms = cm_convert_to_ms( @@ -1400,12 +1411,11 @@ static int cm_req_handler(struct cm_work *work) cm_deref_id(listen_cm_id_priv); return 0; -error3: atomic_dec(&cm_id_priv->refcount); +rejected: + atomic_dec(&cm_id_priv->refcount); cm_deref_id(listen_cm_id_priv); - cm_cleanup_timewait(cm_id_priv->timewait_info); -error2: kfree(cm_id_priv->timewait_info); - cm_id_priv->timewait_info = NULL; -error1: ib_destroy_cm_id(&cm_id_priv->id); +destroy: + ib_destroy_cm_id(cm_id); return ret; } -- cgit v1.2.3-70-g09d2 From 75ab13443e4575c00788ba9861105745b9dda05c Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Mon, 28 Aug 2006 15:10:32 -0700 Subject: IB/mad: Add support for dual-sided RMPP transfers. The implementation assumes that any RMPP request that requires a response uses DS RMPP. Based on the RMPP start-up scenarios defined by the spec, this should be a valid assumption. That is, there is no start-up scenario defined where an RMPP request is followed by a non-RMPP response. By having this assumption we avoid any API changes. In order for a node that supports DS RMPP to communicate with one that does not, RMPP responses assume a new window size of 1 if a DS ACK has not been received. (By DS ACK, I'm referring to the turn-around ACK after the final ACK of the request.) This is a slight spec deviation, but is necessary to allow communication with nodes that do not generate the DS ACK. It also handles the case when a response is sent after the request state has been discarded. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- drivers/infiniband/core/mad_rmpp.c | 90 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 87 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/mad_rmpp.c b/drivers/infiniband/core/mad_rmpp.c index ebcd5b18177..74fe1af9b18 100644 --- a/drivers/infiniband/core/mad_rmpp.c +++ b/drivers/infiniband/core/mad_rmpp.c @@ -60,6 +60,7 @@ struct mad_rmpp_recv { int last_ack; int seg_num; int newwin; + int repwin; __be64 tid; u32 src_qp; @@ -170,6 +171,32 @@ static struct ib_mad_send_buf *alloc_response_msg(struct ib_mad_agent *agent, return msg; } +static void ack_ds_ack(struct ib_mad_agent_private *agent, + struct ib_mad_recv_wc *recv_wc) +{ + struct ib_mad_send_buf *msg; + struct ib_rmpp_mad *rmpp_mad; + int ret; + + msg = alloc_response_msg(&agent->agent, recv_wc); + if (IS_ERR(msg)) + return; + + rmpp_mad = msg->mad; + memcpy(rmpp_mad, recv_wc->recv_buf.mad, msg->hdr_len); + + rmpp_mad->mad_hdr.method ^= IB_MGMT_METHOD_RESP; + ib_set_rmpp_flags(&rmpp_mad->rmpp_hdr, IB_MGMT_RMPP_FLAG_ACTIVE); + rmpp_mad->rmpp_hdr.seg_num = 0; + rmpp_mad->rmpp_hdr.paylen_newwin = cpu_to_be32(1); + + ret = ib_post_send_mad(msg, NULL); + if (ret) { + ib_destroy_ah(msg->ah); + ib_free_send_mad(msg); + } +} + void ib_rmpp_send_handler(struct ib_mad_send_wc *mad_send_wc) { struct ib_rmpp_mad *rmpp_mad = mad_send_wc->send_buf->mad; @@ -271,6 +298,7 @@ create_rmpp_recv(struct ib_mad_agent_private *agent, rmpp_recv->newwin = 1; rmpp_recv->seg_num = 1; rmpp_recv->last_ack = 0; + rmpp_recv->repwin = 1; mad_hdr = &mad_recv_wc->recv_buf.mad->mad_hdr; rmpp_recv->tid = mad_hdr->tid; @@ -591,6 +619,16 @@ static inline void adjust_last_ack(struct ib_mad_send_wr_private *wr, break; } +static void process_ds_ack(struct ib_mad_agent_private *agent, + struct ib_mad_recv_wc *mad_recv_wc, int newwin) +{ + struct mad_rmpp_recv *rmpp_recv; + + rmpp_recv = find_rmpp_recv(agent, mad_recv_wc); + if (rmpp_recv && rmpp_recv->state == RMPP_STATE_COMPLETE) + rmpp_recv->repwin = newwin; +} + static void process_rmpp_ack(struct ib_mad_agent_private *agent, struct ib_mad_recv_wc *mad_recv_wc) { @@ -616,8 +654,18 @@ static void process_rmpp_ack(struct ib_mad_agent_private *agent, spin_lock_irqsave(&agent->lock, flags); mad_send_wr = ib_find_send_mad(agent, mad_recv_wc); - if (!mad_send_wr) - goto out; /* Unmatched ACK */ + if (!mad_send_wr) { + if (!seg_num) + process_ds_ack(agent, mad_recv_wc, newwin); + goto out; /* Unmatched or DS RMPP ACK */ + } + + if ((mad_send_wr->last_ack == mad_send_wr->send_buf.seg_count) && + (mad_send_wr->timeout)) { + spin_unlock_irqrestore(&agent->lock, flags); + ack_ds_ack(agent, mad_recv_wc); + return; /* Repeated ACK for DS RMPP transaction */ + } if ((mad_send_wr->last_ack == mad_send_wr->send_buf.seg_count) || (!mad_send_wr->timeout) || (mad_send_wr->status != IB_WC_SUCCESS)) @@ -656,6 +704,9 @@ static void process_rmpp_ack(struct ib_mad_agent_private *agent, if (mad_send_wr->refcount == 1) ib_reset_mad_timeout(mad_send_wr, mad_send_wr->send_buf.timeout_ms); + spin_unlock_irqrestore(&agent->lock, flags); + ack_ds_ack(agent, mad_recv_wc); + return; } else if (mad_send_wr->refcount == 1 && mad_send_wr->seg_num < mad_send_wr->newwin && mad_send_wr->seg_num < mad_send_wr->send_buf.seg_count) { @@ -772,6 +823,39 @@ out: return NULL; } +static int init_newwin(struct ib_mad_send_wr_private *mad_send_wr) +{ + struct ib_mad_agent_private *agent = mad_send_wr->mad_agent_priv; + struct ib_mad_hdr *mad_hdr = mad_send_wr->send_buf.mad; + struct mad_rmpp_recv *rmpp_recv; + struct ib_ah_attr ah_attr; + unsigned long flags; + int newwin = 1; + + if (!(mad_hdr->method & IB_MGMT_METHOD_RESP)) + goto out; + + spin_lock_irqsave(&agent->lock, flags); + list_for_each_entry(rmpp_recv, &agent->rmpp_list, list) { + if (rmpp_recv->tid != mad_hdr->tid || + rmpp_recv->mgmt_class != mad_hdr->mgmt_class || + rmpp_recv->class_version != mad_hdr->class_version || + (rmpp_recv->method & IB_MGMT_METHOD_RESP)) + continue; + + if (ib_query_ah(mad_send_wr->send_buf.ah, &ah_attr)) + continue; + + if (rmpp_recv->slid == ah_attr.dlid) { + newwin = rmpp_recv->repwin; + break; + } + } + spin_unlock_irqrestore(&agent->lock, flags); +out: + return newwin; +} + int ib_send_rmpp_mad(struct ib_mad_send_wr_private *mad_send_wr) { struct ib_rmpp_mad *rmpp_mad; @@ -787,7 +871,7 @@ int ib_send_rmpp_mad(struct ib_mad_send_wr_private *mad_send_wr) return IB_RMPP_RESULT_INTERNAL; } - mad_send_wr->newwin = 1; + mad_send_wr->newwin = init_newwin(mad_send_wr); /* We need to wait for the final ACK even if there isn't a response */ mad_send_wr->refcount += (mad_send_wr->timeout == 0); -- cgit v1.2.3-70-g09d2 From 2b3e258e5dd1938e2708eb5354ad8ba056fe8154 Mon Sep 17 00:00:00 2001 From: James Lentini Date: Mon, 28 Aug 2006 15:12:04 -0700 Subject: IB/mad: Remove unused includes The ib_mad module does not use a kthread function, but mad_priv.h includes . mad_rmpp.c does not do any DMA-related stuff, but includes . Remove the unused includes. Signed-off-by: James Lentini Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- drivers/infiniband/core/mad_priv.h | 1 - drivers/infiniband/core/mad_rmpp.c | 2 -- 2 files changed, 3 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/mad_priv.h b/drivers/infiniband/core/mad_priv.h index d147f3bad2c..1da9adbccae 100644 --- a/drivers/infiniband/core/mad_priv.h +++ b/drivers/infiniband/core/mad_priv.h @@ -39,7 +39,6 @@ #include #include -#include #include #include #include diff --git a/drivers/infiniband/core/mad_rmpp.c b/drivers/infiniband/core/mad_rmpp.c index 74fe1af9b18..3ace5f492dc 100644 --- a/drivers/infiniband/core/mad_rmpp.c +++ b/drivers/infiniband/core/mad_rmpp.c @@ -33,8 +33,6 @@ * $Id: mad_rmpp.c 1921 2005-03-02 22:58:44Z sean.hefty $ */ -#include - #include "mad_priv.h" #include "mad_rmpp.h" -- cgit v1.2.3-70-g09d2 From f06d26537559113207e4b73af6a22eaa5c5e9dc3 Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Mon, 28 Aug 2006 15:15:18 -0700 Subject: IB/cm: Randomize starting comm ID Randomize the starting local comm ID to avoid getting a rejected connection due to a stale connection after a system reboot or reloading of the ib_cm. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- drivers/infiniband/core/cm.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 1aad33e0352..c8982b02d9b 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2004, 2005 Intel Corporation. All rights reserved. + * Copyright (c) 2004-2006 Intel Corporation. All rights reserved. * Copyright (c) 2004 Topspin Corporation. All rights reserved. * Copyright (c) 2004, 2005 Voltaire Corporation. All rights reserved. * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. @@ -41,6 +41,7 @@ #include #include #include +#include #include #include #include @@ -73,6 +74,7 @@ static struct ib_cm { struct rb_root remote_id_table; struct rb_root remote_sidr_table; struct idr local_id_table; + __be32 random_id_operand; struct workqueue_struct *wq; } cm; @@ -299,15 +301,17 @@ static int cm_init_av_by_path(struct ib_sa_path_rec *path, struct cm_av *av) static int cm_alloc_id(struct cm_id_private *cm_id_priv) { unsigned long flags; - int ret; + int ret, id; static int next_id; do { spin_lock_irqsave(&cm.lock, flags); - ret = idr_get_new_above(&cm.local_id_table, cm_id_priv, next_id++, - (__force int *) &cm_id_priv->id.local_id); + ret = idr_get_new_above(&cm.local_id_table, cm_id_priv, + next_id++, &id); spin_unlock_irqrestore(&cm.lock, flags); } while( (ret == -EAGAIN) && idr_pre_get(&cm.local_id_table, GFP_KERNEL) ); + + cm_id_priv->id.local_id = (__force __be32) (id ^ cm.random_id_operand); return ret; } @@ -316,7 +320,8 @@ static void cm_free_id(__be32 local_id) unsigned long flags; spin_lock_irqsave(&cm.lock, flags); - idr_remove(&cm.local_id_table, (__force int) local_id); + idr_remove(&cm.local_id_table, + (__force int) (local_id ^ cm.random_id_operand)); spin_unlock_irqrestore(&cm.lock, flags); } @@ -324,7 +329,8 @@ static struct cm_id_private * cm_get_id(__be32 local_id, __be32 remote_id) { struct cm_id_private *cm_id_priv; - cm_id_priv = idr_find(&cm.local_id_table, (__force int) local_id); + cm_id_priv = idr_find(&cm.local_id_table, + (__force int) (local_id ^ cm.random_id_operand)); if (cm_id_priv) { if (cm_id_priv->id.remote_id == remote_id) atomic_inc(&cm_id_priv->refcount); @@ -2082,8 +2088,9 @@ static struct cm_id_private * cm_acquire_rejected_id(struct cm_rej_msg *rej_msg) spin_unlock_irqrestore(&cm.lock, flags); return NULL; } - cm_id_priv = idr_find(&cm.local_id_table, - (__force int) timewait_info->work.local_id); + cm_id_priv = idr_find(&cm.local_id_table, (__force int) + (timewait_info->work.local_id ^ + cm.random_id_operand)); if (cm_id_priv) { if (cm_id_priv->id.remote_id == remote_id) atomic_inc(&cm_id_priv->refcount); @@ -3360,6 +3367,7 @@ static int __init ib_cm_init(void) cm.remote_qp_table = RB_ROOT; cm.remote_sidr_table = RB_ROOT; idr_init(&cm.local_id_table); + get_random_bytes(&cm.random_id_operand, sizeof cm.random_id_operand); idr_pre_get(&cm.local_id_table, GFP_KERNEL); cm.wq = create_workqueue("ib_cm"); -- cgit v1.2.3-70-g09d2 From 3cd965646b7cb75ae84dd0daf6258adf20e4f169 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 22 Sep 2006 15:22:46 -0700 Subject: IB: Whitespace fixes Remove some trailing whitespace that has snuck in despite the best efforts of whitespace=error-all. Also fix a few other whitespace bogosities. Signed-off-by: Roland Dreier --- drivers/infiniband/Kconfig | 2 +- drivers/infiniband/core/addr.c | 4 ++-- drivers/infiniband/core/cm.c | 2 +- drivers/infiniband/core/cma.c | 8 ++++---- drivers/infiniband/core/mad.c | 12 ++++++------ drivers/infiniband/core/mad_rmpp.c | 2 +- drivers/infiniband/core/sa_query.c | 2 +- drivers/infiniband/core/sysfs.c | 2 +- drivers/infiniband/core/ucm.c | 6 +++--- drivers/infiniband/core/user_mad.c | 2 +- drivers/infiniband/core/uverbs_cmd.c | 2 -- drivers/infiniband/hw/ipath/ipath_driver.c | 6 +++--- drivers/infiniband/hw/mthca/mthca_cq.c | 10 +++++----- drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 2 +- drivers/infiniband/ulp/srp/ib_srp.c | 2 +- 15 files changed, 31 insertions(+), 33 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig index fd2d528daa3..9a329b2c108 100644 --- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -14,7 +14,7 @@ config INFINIBAND_USER_MAD ---help--- Userspace InfiniBand Management Datagram (MAD) support. This is the kernel side of the userspace MAD support, which allows - userspace processes to send and receive MADs. You will also + userspace processes to send and receive MADs. You will also need libibumad from . config INFINIBAND_USER_ACCESS diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c index 1205e802782..d8e54e002ce 100644 --- a/drivers/infiniband/core/addr.c +++ b/drivers/infiniband/core/addr.c @@ -327,10 +327,10 @@ void rdma_addr_cancel(struct rdma_dev_addr *addr) } EXPORT_SYMBOL(rdma_addr_cancel); -static int netevent_callback(struct notifier_block *self, unsigned long event, +static int netevent_callback(struct notifier_block *self, unsigned long event, void *ctx) { - if (event == NETEVENT_NEIGH_UPDATE) { + if (event == NETEVENT_NEIGH_UPDATE) { struct neighbour *neigh = ctx; if (neigh->dev->type == ARPHRD_INFINIBAND && diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index c8982b02d9b..1c145fe92a5 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -179,7 +179,7 @@ static int cm_alloc_msg(struct cm_id_private *cm_id_priv, if (IS_ERR(ah)) return PTR_ERR(ah); - m = ib_create_send_mad(mad_agent, cm_id_priv->id.remote_cm_qpn, + m = ib_create_send_mad(mad_agent, cm_id_priv->id.remote_cm_qpn, cm_id_priv->av.pkey_index, 0, IB_MGMT_MAD_HDR, IB_MGMT_MAD_DATA, GFP_ATOMIC); diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 5d625a81193..9d58bb59cd4 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -613,7 +613,7 @@ static void cma_destroy_listen(struct rdma_id_private *id_priv) if (id_priv->cma_dev) { switch (id_priv->id.device->node_type) { case IB_NODE_CA: - if (id_priv->cm_id.ib && !IS_ERR(id_priv->cm_id.ib)) + if (id_priv->cm_id.ib && !IS_ERR(id_priv->cm_id.ib)) ib_destroy_cm_id(id_priv->cm_id.ib); break; default: @@ -692,13 +692,13 @@ void rdma_destroy_id(struct rdma_cm_id *id) if (id_priv->cma_dev) { switch (id->device->node_type) { case IB_NODE_CA: - if (id_priv->cm_id.ib && !IS_ERR(id_priv->cm_id.ib)) + if (id_priv->cm_id.ib && !IS_ERR(id_priv->cm_id.ib)) ib_destroy_cm_id(id_priv->cm_id.ib); break; default: break; } - mutex_lock(&lock); + mutex_lock(&lock); cma_detach_from_dev(id_priv); mutex_unlock(&lock); } @@ -1492,7 +1492,7 @@ static int cma_use_port(struct idr *ps, struct rdma_id_private *id_priv) hlist_for_each_entry(cur_id, node, &bind_list->owners, node) { if (cma_any_addr(&cur_id->id.route.addr.src_addr)) return -EADDRNOTAVAIL; - + cur_sin = (struct sockaddr_in *) &cur_id->id.route.addr.src_addr; if (sin->sin_addr.s_addr == cur_sin->sin_addr.s_addr) return -EADDRINUSE; diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 1c3cfbbe6a9..32d3028b274 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -1246,8 +1246,8 @@ static int find_vendor_oui(struct ib_mad_mgmt_vendor_class *vendor_class, int i; for (i = 0; i < MAX_MGMT_OUI; i++) - /* Is there matching OUI for this vendor class ? */ - if (!memcmp(vendor_class->oui[i], oui, 3)) + /* Is there matching OUI for this vendor class ? */ + if (!memcmp(vendor_class->oui[i], oui, 3)) return i; return -1; @@ -2237,7 +2237,7 @@ static void cancel_mads(struct ib_mad_agent_private *mad_agent_priv) list_for_each_entry_safe(mad_send_wr, temp_mad_send_wr, &mad_agent_priv->send_list, agent_list) { if (mad_send_wr->status == IB_WC_SUCCESS) { - mad_send_wr->status = IB_WC_WR_FLUSH_ERR; + mad_send_wr->status = IB_WC_WR_FLUSH_ERR; mad_send_wr->refcount -= (mad_send_wr->timeout > 0); } } @@ -2528,10 +2528,10 @@ static int ib_mad_post_receive_mads(struct ib_mad_qp_info *qp_info, } } sg_list.addr = dma_map_single(qp_info->port_priv-> - device->dma_device, + device->dma_device, &mad_priv->grh, sizeof *mad_priv - - sizeof mad_priv->header, + sizeof mad_priv->header, DMA_FROM_DEVICE); pci_unmap_addr_set(&mad_priv->header, mapping, sg_list.addr); recv_wr.wr_id = (unsigned long)&mad_priv->header.mad_list; @@ -2606,7 +2606,7 @@ static int ib_mad_port_start(struct ib_mad_port_private *port_priv) struct ib_qp *qp; attr = kmalloc(sizeof *attr, GFP_KERNEL); - if (!attr) { + if (!attr) { printk(KERN_ERR PFX "Couldn't kmalloc ib_qp_attr\n"); return -ENOMEM; } diff --git a/drivers/infiniband/core/mad_rmpp.c b/drivers/infiniband/core/mad_rmpp.c index 3ace5f492dc..1ef79d015a1 100644 --- a/drivers/infiniband/core/mad_rmpp.c +++ b/drivers/infiniband/core/mad_rmpp.c @@ -391,7 +391,7 @@ static inline int window_size(struct ib_mad_agent_private *agent) static struct ib_mad_recv_buf * find_seg_location(struct list_head *rmpp_list, int seg_num) { - struct ib_mad_recv_buf *seg_buf; + struct ib_mad_recv_buf *seg_buf; int cur_seg_num; list_for_each_entry_reverse(seg_buf, rmpp_list, list) { diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c index d6b84226bba..df762ba4868 100644 --- a/drivers/infiniband/core/sa_query.c +++ b/drivers/infiniband/core/sa_query.c @@ -887,7 +887,7 @@ static void send_handler(struct ib_mad_agent *agent, idr_remove(&query_idr, query->id); spin_unlock_irqrestore(&idr_lock, flags); - ib_free_send_mad(mad_send_wc->send_buf); + ib_free_send_mad(mad_send_wc->send_buf); kref_put(&query->sm_ah->ref, free_sm_ah); query->release(query); } diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index 21f9282c1b2..fb6660564a3 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -68,7 +68,7 @@ struct port_table_attribute { int index; }; -static inline int ibdev_is_alive(const struct ib_device *dev) +static inline int ibdev_is_alive(const struct ib_device *dev) { return dev->reg_state == IB_DEV_REGISTERED; } diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c index c1c6fda9452..e74c964af7f 100644 --- a/drivers/infiniband/core/ucm.c +++ b/drivers/infiniband/core/ucm.c @@ -309,9 +309,9 @@ static int ib_ucm_event_process(struct ib_cm_event *evt, info = evt->param.apr_rcvd.apr_info; break; case IB_CM_SIDR_REQ_RECEIVED: - uvt->resp.u.sidr_req_resp.pkey = + uvt->resp.u.sidr_req_resp.pkey = evt->param.sidr_req_rcvd.pkey; - uvt->resp.u.sidr_req_resp.port = + uvt->resp.u.sidr_req_resp.port = evt->param.sidr_req_rcvd.port; uvt->data_len = IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE; break; @@ -1237,7 +1237,7 @@ static struct class ucm_class = { static ssize_t show_ibdev(struct class_device *class_dev, char *buf) { struct ib_ucm_device *dev; - + dev = container_of(class_dev, struct ib_ucm_device, class_dev); return sprintf(buf, "%s\n", dev->ib_dev->name); } diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index 1273f8807e8..8a455aec758 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -1,6 +1,6 @@ /* * Copyright (c) 2004 Topspin Communications. All rights reserved. - * Copyright (c) 2005 Voltaire, Inc. All rights reserved. + * Copyright (c) 2005 Voltaire, Inc. All rights reserved. * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. * * This software is available to you under a choice of one of two diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 3fcb5d189a2..b72c7f69ca9 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -1676,7 +1676,6 @@ ssize_t ib_uverbs_post_recv(struct ib_uverbs_file *file, break; } - if (copy_to_user((void __user *) (unsigned long) cmd.response, &resp, sizeof resp)) ret = -EFAULT; @@ -1726,7 +1725,6 @@ ssize_t ib_uverbs_post_srq_recv(struct ib_uverbs_file *file, break; } - if (copy_to_user((void __user *) (unsigned long) cmd.response, &resp, sizeof resp)) ret = -EFAULT; diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c index 47c9d15557c..2108466c7e3 100644 --- a/drivers/infiniband/hw/ipath/ipath_driver.c +++ b/drivers/infiniband/hw/ipath/ipath_driver.c @@ -2126,9 +2126,9 @@ int ipath_set_rx_pol_inv(struct ipath_devdata *dd, u8 new_pol_inv) dd->ipath_rx_pol_inv = new_pol_inv; val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_xgxsconfig); val &= ~(INFINIPATH_XGXS_RX_POL_MASK << - INFINIPATH_XGXS_RX_POL_SHIFT); - val |= ((u64)dd->ipath_rx_pol_inv) << - INFINIPATH_XGXS_RX_POL_SHIFT; + INFINIPATH_XGXS_RX_POL_SHIFT); + val |= ((u64)dd->ipath_rx_pol_inv) << + INFINIPATH_XGXS_RX_POL_SHIFT; ipath_write_kreg(dd, dd->ipath_kregs->kr_xgxsconfig, val); } return 0; diff --git a/drivers/infiniband/hw/mthca/mthca_cq.c b/drivers/infiniband/hw/mthca/mthca_cq.c index 3e27a084257..e393681ba7d 100644 --- a/drivers/infiniband/hw/mthca/mthca_cq.c +++ b/drivers/infiniband/hw/mthca/mthca_cq.c @@ -544,11 +544,11 @@ static inline int mthca_poll_one(struct mthca_dev *dev, wq = &(*cur_qp)->rq; wqe = be32_to_cpu(cqe->wqe); wqe_index = wqe >> wq->wqe_shift; - /* - * WQE addr == base - 1 might be reported in receive completion - * with error instead of (rq size - 1) by Sinai FW 1.0.800 and - * Arbel FW 5.1.400. This bug should be fixed in later FW revs. - */ + /* + * WQE addr == base - 1 might be reported in receive completion + * with error instead of (rq size - 1) by Sinai FW 1.0.800 and + * Arbel FW 5.1.400. This bug should be fixed in later FW revs. + */ if (unlikely(wqe_index < 0)) wqe_index = wq->max - 1; entry->wr_id = (*cur_qp)->wrid[wqe_index]; diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index ec356ce7cdc..60b09f5cb34 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -795,7 +795,7 @@ void ipoib_mcast_dev_flush(struct net_device *dev) } if (priv->broadcast) { - rb_erase(&priv->broadcast->rb_node, &priv->multicast_tree); + rb_erase(&priv->broadcast->rb_node, &priv->multicast_tree); list_add_tail(&priv->broadcast->list, &remove_list); priv->broadcast = NULL; } diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 249a98c06ae..61c13d1e050 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -330,7 +330,7 @@ static int srp_send_req(struct srp_target_port *target) req->priv.req_buf_fmt = cpu_to_be16(SRP_BUF_FORMAT_DIRECT | SRP_BUF_FORMAT_INDIRECT); /* - * In the published SRP specification (draft rev. 16a), the + * In the published SRP specification (draft rev. 16a), the * port identifier format is 8 bytes of ID extension followed * by 8 bytes of GUID. Older drafts put the two halves in the * opposite order, so that the GUID comes first. -- cgit v1.2.3-70-g09d2 From 922a8e9fb2e0711212badce47a41137e2ca04cb3 Mon Sep 17 00:00:00 2001 From: Tom Tucker Date: Thu, 3 Aug 2006 16:02:40 -0500 Subject: RDMA: iWARP Connection Manager. Add an iWARP Connection Manager (CM), which abstracts connection management for iWARP devices (RNICs). It is a logical instance of the xx_cm where xx is the transport type (ib or iw). The symbols exported are used by the transport independent rdma_cm module, and are available also for transport dependent ULPs. Signed-off-by: Tom Tucker Signed-off-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/core/iwcm.c | 1019 ++++++++++++++++++++++++++++++++++++++++ drivers/infiniband/core/iwcm.h | 62 +++ include/rdma/iw_cm.h | 258 ++++++++++ 3 files changed, 1339 insertions(+) create mode 100644 drivers/infiniband/core/iwcm.c create mode 100644 drivers/infiniband/core/iwcm.h create mode 100644 include/rdma/iw_cm.h (limited to 'drivers') diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c new file mode 100644 index 00000000000..c3fb304a4e8 --- /dev/null +++ b/drivers/infiniband/core/iwcm.c @@ -0,0 +1,1019 @@ +/* + * Copyright (c) 2004, 2005 Intel Corporation. All rights reserved. + * Copyright (c) 2004 Topspin Corporation. All rights reserved. + * Copyright (c) 2004, 2005 Voltaire Corporation. All rights reserved. + * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * Copyright (c) 2005 Network Appliance, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "iwcm.h" + +MODULE_AUTHOR("Tom Tucker"); +MODULE_DESCRIPTION("iWARP CM"); +MODULE_LICENSE("Dual BSD/GPL"); + +static struct workqueue_struct *iwcm_wq; +struct iwcm_work { + struct work_struct work; + struct iwcm_id_private *cm_id; + struct list_head list; + struct iw_cm_event event; + struct list_head free_list; +}; + +/* + * The following services provide a mechanism for pre-allocating iwcm_work + * elements. The design pre-allocates them based on the cm_id type: + * LISTENING IDS: Get enough elements preallocated to handle the + * listen backlog. + * ACTIVE IDS: 4: CONNECT_REPLY, ESTABLISHED, DISCONNECT, CLOSE + * PASSIVE IDS: 3: ESTABLISHED, DISCONNECT, CLOSE + * + * Allocating them in connect and listen avoids having to deal + * with allocation failures on the event upcall from the provider (which + * is called in the interrupt context). + * + * One exception is when creating the cm_id for incoming connection requests. + * There are two cases: + * 1) in the event upcall, cm_event_handler(), for a listening cm_id. If + * the backlog is exceeded, then no more connection request events will + * be processed. cm_event_handler() returns -ENOMEM in this case. Its up + * to the provider to reject the connectino request. + * 2) in the connection request workqueue handler, cm_conn_req_handler(). + * If work elements cannot be allocated for the new connect request cm_id, + * then IWCM will call the provider reject method. This is ok since + * cm_conn_req_handler() runs in the workqueue thread context. + */ + +static struct iwcm_work *get_work(struct iwcm_id_private *cm_id_priv) +{ + struct iwcm_work *work; + + if (list_empty(&cm_id_priv->work_free_list)) + return NULL; + work = list_entry(cm_id_priv->work_free_list.next, struct iwcm_work, + free_list); + list_del_init(&work->free_list); + return work; +} + +static void put_work(struct iwcm_work *work) +{ + list_add(&work->free_list, &work->cm_id->work_free_list); +} + +static void dealloc_work_entries(struct iwcm_id_private *cm_id_priv) +{ + struct list_head *e, *tmp; + + list_for_each_safe(e, tmp, &cm_id_priv->work_free_list) + kfree(list_entry(e, struct iwcm_work, free_list)); +} + +static int alloc_work_entries(struct iwcm_id_private *cm_id_priv, int count) +{ + struct iwcm_work *work; + + BUG_ON(!list_empty(&cm_id_priv->work_free_list)); + while (count--) { + work = kmalloc(sizeof(struct iwcm_work), GFP_KERNEL); + if (!work) { + dealloc_work_entries(cm_id_priv); + return -ENOMEM; + } + work->cm_id = cm_id_priv; + INIT_LIST_HEAD(&work->list); + put_work(work); + } + return 0; +} + +/* + * Save private data from incoming connection requests in the + * cm_id_priv so the low level driver doesn't have to. Adjust + * the event ptr to point to the local copy. + */ +static int copy_private_data(struct iwcm_id_private *cm_id_priv, + struct iw_cm_event *event) +{ + void *p; + + p = kmalloc(event->private_data_len, GFP_ATOMIC); + if (!p) + return -ENOMEM; + memcpy(p, event->private_data, event->private_data_len); + event->private_data = p; + return 0; +} + +/* + * Release a reference on cm_id. If the last reference is being removed + * and iw_destroy_cm_id is waiting, wake up the waiting thread. + */ +static int iwcm_deref_id(struct iwcm_id_private *cm_id_priv) +{ + int ret = 0; + + BUG_ON(atomic_read(&cm_id_priv->refcount)==0); + if (atomic_dec_and_test(&cm_id_priv->refcount)) { + BUG_ON(!list_empty(&cm_id_priv->work_list)); + if (waitqueue_active(&cm_id_priv->destroy_comp.wait)) { + BUG_ON(cm_id_priv->state != IW_CM_STATE_DESTROYING); + BUG_ON(test_bit(IWCM_F_CALLBACK_DESTROY, + &cm_id_priv->flags)); + ret = 1; + } + complete(&cm_id_priv->destroy_comp); + } + + return ret; +} + +static void add_ref(struct iw_cm_id *cm_id) +{ + struct iwcm_id_private *cm_id_priv; + cm_id_priv = container_of(cm_id, struct iwcm_id_private, id); + atomic_inc(&cm_id_priv->refcount); +} + +static void rem_ref(struct iw_cm_id *cm_id) +{ + struct iwcm_id_private *cm_id_priv; + cm_id_priv = container_of(cm_id, struct iwcm_id_private, id); + iwcm_deref_id(cm_id_priv); +} + +static int cm_event_handler(struct iw_cm_id *cm_id, struct iw_cm_event *event); + +struct iw_cm_id *iw_create_cm_id(struct ib_device *device, + iw_cm_handler cm_handler, + void *context) +{ + struct iwcm_id_private *cm_id_priv; + + cm_id_priv = kzalloc(sizeof(*cm_id_priv), GFP_KERNEL); + if (!cm_id_priv) + return ERR_PTR(-ENOMEM); + + cm_id_priv->state = IW_CM_STATE_IDLE; + cm_id_priv->id.device = device; + cm_id_priv->id.cm_handler = cm_handler; + cm_id_priv->id.context = context; + cm_id_priv->id.event_handler = cm_event_handler; + cm_id_priv->id.add_ref = add_ref; + cm_id_priv->id.rem_ref = rem_ref; + spin_lock_init(&cm_id_priv->lock); + atomic_set(&cm_id_priv->refcount, 1); + init_waitqueue_head(&cm_id_priv->connect_wait); + init_completion(&cm_id_priv->destroy_comp); + INIT_LIST_HEAD(&cm_id_priv->work_list); + INIT_LIST_HEAD(&cm_id_priv->work_free_list); + + return &cm_id_priv->id; +} +EXPORT_SYMBOL(iw_create_cm_id); + + +static int iwcm_modify_qp_err(struct ib_qp *qp) +{ + struct ib_qp_attr qp_attr; + + if (!qp) + return -EINVAL; + + qp_attr.qp_state = IB_QPS_ERR; + return ib_modify_qp(qp, &qp_attr, IB_QP_STATE); +} + +/* + * This is really the RDMAC CLOSING state. It is most similar to the + * IB SQD QP state. + */ +static int iwcm_modify_qp_sqd(struct ib_qp *qp) +{ + struct ib_qp_attr qp_attr; + + BUG_ON(qp == NULL); + qp_attr.qp_state = IB_QPS_SQD; + return ib_modify_qp(qp, &qp_attr, IB_QP_STATE); +} + +/* + * CM_ID <-- CLOSING + * + * Block if a passive or active connection is currenlty being processed. Then + * process the event as follows: + * - If we are ESTABLISHED, move to CLOSING and modify the QP state + * based on the abrupt flag + * - If the connection is already in the CLOSING or IDLE state, the peer is + * disconnecting concurrently with us and we've already seen the + * DISCONNECT event -- ignore the request and return 0 + * - Disconnect on a listening endpoint returns -EINVAL + */ +int iw_cm_disconnect(struct iw_cm_id *cm_id, int abrupt) +{ + struct iwcm_id_private *cm_id_priv; + unsigned long flags; + int ret = 0; + struct ib_qp *qp = NULL; + + cm_id_priv = container_of(cm_id, struct iwcm_id_private, id); + /* Wait if we're currently in a connect or accept downcall */ + wait_event(cm_id_priv->connect_wait, + !test_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags)); + + spin_lock_irqsave(&cm_id_priv->lock, flags); + switch (cm_id_priv->state) { + case IW_CM_STATE_ESTABLISHED: + cm_id_priv->state = IW_CM_STATE_CLOSING; + + /* QP could be for user-mode client */ + if (cm_id_priv->qp) + qp = cm_id_priv->qp; + else + ret = -EINVAL; + break; + case IW_CM_STATE_LISTEN: + ret = -EINVAL; + break; + case IW_CM_STATE_CLOSING: + /* remote peer closed first */ + case IW_CM_STATE_IDLE: + /* accept or connect returned !0 */ + break; + case IW_CM_STATE_CONN_RECV: + /* + * App called disconnect before/without calling accept after + * connect_request event delivered. + */ + break; + case IW_CM_STATE_CONN_SENT: + /* Can only get here if wait above fails */ + default: + BUG(); + } + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + + if (qp) { + if (abrupt) + ret = iwcm_modify_qp_err(qp); + else + ret = iwcm_modify_qp_sqd(qp); + + /* + * If both sides are disconnecting the QP could + * already be in ERR or SQD states + */ + ret = 0; + } + + return ret; +} +EXPORT_SYMBOL(iw_cm_disconnect); + +/* + * CM_ID <-- DESTROYING + * + * Clean up all resources associated with the connection and release + * the initial reference taken by iw_create_cm_id. + */ +static void destroy_cm_id(struct iw_cm_id *cm_id) +{ + struct iwcm_id_private *cm_id_priv; + unsigned long flags; + int ret; + + cm_id_priv = container_of(cm_id, struct iwcm_id_private, id); + /* + * Wait if we're currently in a connect or accept downcall. A + * listening endpoint should never block here. + */ + wait_event(cm_id_priv->connect_wait, + !test_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags)); + + spin_lock_irqsave(&cm_id_priv->lock, flags); + switch (cm_id_priv->state) { + case IW_CM_STATE_LISTEN: + cm_id_priv->state = IW_CM_STATE_DESTROYING; + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + /* destroy the listening endpoint */ + ret = cm_id->device->iwcm->destroy_listen(cm_id); + spin_lock_irqsave(&cm_id_priv->lock, flags); + break; + case IW_CM_STATE_ESTABLISHED: + cm_id_priv->state = IW_CM_STATE_DESTROYING; + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + /* Abrupt close of the connection */ + (void)iwcm_modify_qp_err(cm_id_priv->qp); + spin_lock_irqsave(&cm_id_priv->lock, flags); + break; + case IW_CM_STATE_IDLE: + case IW_CM_STATE_CLOSING: + cm_id_priv->state = IW_CM_STATE_DESTROYING; + break; + case IW_CM_STATE_CONN_RECV: + /* + * App called destroy before/without calling accept after + * receiving connection request event notification. + */ + cm_id_priv->state = IW_CM_STATE_DESTROYING; + break; + case IW_CM_STATE_CONN_SENT: + case IW_CM_STATE_DESTROYING: + default: + BUG(); + break; + } + if (cm_id_priv->qp) { + cm_id_priv->id.device->iwcm->rem_ref(cm_id_priv->qp); + cm_id_priv->qp = NULL; + } + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + + (void)iwcm_deref_id(cm_id_priv); +} + +/* + * This function is only called by the application thread and cannot + * be called by the event thread. The function will wait for all + * references to be released on the cm_id and then kfree the cm_id + * object. + */ +void iw_destroy_cm_id(struct iw_cm_id *cm_id) +{ + struct iwcm_id_private *cm_id_priv; + + cm_id_priv = container_of(cm_id, struct iwcm_id_private, id); + BUG_ON(test_bit(IWCM_F_CALLBACK_DESTROY, &cm_id_priv->flags)); + + destroy_cm_id(cm_id); + + wait_for_completion(&cm_id_priv->destroy_comp); + + dealloc_work_entries(cm_id_priv); + + kfree(cm_id_priv); +} +EXPORT_SYMBOL(iw_destroy_cm_id); + +/* + * CM_ID <-- LISTEN + * + * Start listening for connect requests. Generates one CONNECT_REQUEST + * event for each inbound connect request. + */ +int iw_cm_listen(struct iw_cm_id *cm_id, int backlog) +{ + struct iwcm_id_private *cm_id_priv; + unsigned long flags; + int ret = 0; + + cm_id_priv = container_of(cm_id, struct iwcm_id_private, id); + + ret = alloc_work_entries(cm_id_priv, backlog); + if (ret) + return ret; + + spin_lock_irqsave(&cm_id_priv->lock, flags); + switch (cm_id_priv->state) { + case IW_CM_STATE_IDLE: + cm_id_priv->state = IW_CM_STATE_LISTEN; + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + ret = cm_id->device->iwcm->create_listen(cm_id, backlog); + if (ret) + cm_id_priv->state = IW_CM_STATE_IDLE; + spin_lock_irqsave(&cm_id_priv->lock, flags); + break; + default: + ret = -EINVAL; + } + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + + return ret; +} +EXPORT_SYMBOL(iw_cm_listen); + +/* + * CM_ID <-- IDLE + * + * Rejects an inbound connection request. No events are generated. + */ +int iw_cm_reject(struct iw_cm_id *cm_id, + const void *private_data, + u8 private_data_len) +{ + struct iwcm_id_private *cm_id_priv; + unsigned long flags; + int ret; + + cm_id_priv = container_of(cm_id, struct iwcm_id_private, id); + set_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags); + + spin_lock_irqsave(&cm_id_priv->lock, flags); + if (cm_id_priv->state != IW_CM_STATE_CONN_RECV) { + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + clear_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags); + wake_up_all(&cm_id_priv->connect_wait); + return -EINVAL; + } + cm_id_priv->state = IW_CM_STATE_IDLE; + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + + ret = cm_id->device->iwcm->reject(cm_id, private_data, + private_data_len); + + clear_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags); + wake_up_all(&cm_id_priv->connect_wait); + + return ret; +} +EXPORT_SYMBOL(iw_cm_reject); + +/* + * CM_ID <-- ESTABLISHED + * + * Accepts an inbound connection request and generates an ESTABLISHED + * event. Callers of iw_cm_disconnect and iw_destroy_cm_id will block + * until the ESTABLISHED event is received from the provider. + */ +int iw_cm_accept(struct iw_cm_id *cm_id, + struct iw_cm_conn_param *iw_param) +{ + struct iwcm_id_private *cm_id_priv; + struct ib_qp *qp; + unsigned long flags; + int ret; + + cm_id_priv = container_of(cm_id, struct iwcm_id_private, id); + set_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags); + + spin_lock_irqsave(&cm_id_priv->lock, flags); + if (cm_id_priv->state != IW_CM_STATE_CONN_RECV) { + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + clear_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags); + wake_up_all(&cm_id_priv->connect_wait); + return -EINVAL; + } + /* Get the ib_qp given the QPN */ + qp = cm_id->device->iwcm->get_qp(cm_id->device, iw_param->qpn); + if (!qp) { + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + return -EINVAL; + } + cm_id->device->iwcm->add_ref(qp); + cm_id_priv->qp = qp; + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + + ret = cm_id->device->iwcm->accept(cm_id, iw_param); + if (ret) { + /* An error on accept precludes provider events */ + BUG_ON(cm_id_priv->state != IW_CM_STATE_CONN_RECV); + cm_id_priv->state = IW_CM_STATE_IDLE; + spin_lock_irqsave(&cm_id_priv->lock, flags); + if (cm_id_priv->qp) { + cm_id->device->iwcm->rem_ref(qp); + cm_id_priv->qp = NULL; + } + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + clear_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags); + wake_up_all(&cm_id_priv->connect_wait); + } + + return ret; +} +EXPORT_SYMBOL(iw_cm_accept); + +/* + * Active Side: CM_ID <-- CONN_SENT + * + * If successful, results in the generation of a CONNECT_REPLY + * event. iw_cm_disconnect and iw_cm_destroy will block until the + * CONNECT_REPLY event is received from the provider. + */ +int iw_cm_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) +{ + struct iwcm_id_private *cm_id_priv; + int ret = 0; + unsigned long flags; + struct ib_qp *qp; + + cm_id_priv = container_of(cm_id, struct iwcm_id_private, id); + + ret = alloc_work_entries(cm_id_priv, 4); + if (ret) + return ret; + + set_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags); + spin_lock_irqsave(&cm_id_priv->lock, flags); + + if (cm_id_priv->state != IW_CM_STATE_IDLE) { + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + clear_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags); + wake_up_all(&cm_id_priv->connect_wait); + return -EINVAL; + } + + /* Get the ib_qp given the QPN */ + qp = cm_id->device->iwcm->get_qp(cm_id->device, iw_param->qpn); + if (!qp) { + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + return -EINVAL; + } + cm_id->device->iwcm->add_ref(qp); + cm_id_priv->qp = qp; + cm_id_priv->state = IW_CM_STATE_CONN_SENT; + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + + ret = cm_id->device->iwcm->connect(cm_id, iw_param); + if (ret) { + spin_lock_irqsave(&cm_id_priv->lock, flags); + if (cm_id_priv->qp) { + cm_id->device->iwcm->rem_ref(qp); + cm_id_priv->qp = NULL; + } + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + BUG_ON(cm_id_priv->state != IW_CM_STATE_CONN_SENT); + cm_id_priv->state = IW_CM_STATE_IDLE; + clear_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags); + wake_up_all(&cm_id_priv->connect_wait); + } + + return ret; +} +EXPORT_SYMBOL(iw_cm_connect); + +/* + * Passive Side: new CM_ID <-- CONN_RECV + * + * Handles an inbound connect request. The function creates a new + * iw_cm_id to represent the new connection and inherits the client + * callback function and other attributes from the listening parent. + * + * The work item contains a pointer to the listen_cm_id and the event. The + * listen_cm_id contains the client cm_handler, context and + * device. These are copied when the device is cloned. The event + * contains the new four tuple. + * + * An error on the child should not affect the parent, so this + * function does not return a value. + */ +static void cm_conn_req_handler(struct iwcm_id_private *listen_id_priv, + struct iw_cm_event *iw_event) +{ + unsigned long flags; + struct iw_cm_id *cm_id; + struct iwcm_id_private *cm_id_priv; + int ret; + + /* + * The provider should never generate a connection request + * event with a bad status. + */ + BUG_ON(iw_event->status); + + /* + * We could be destroying the listening id. If so, ignore this + * upcall. + */ + spin_lock_irqsave(&listen_id_priv->lock, flags); + if (listen_id_priv->state != IW_CM_STATE_LISTEN) { + spin_unlock_irqrestore(&listen_id_priv->lock, flags); + return; + } + spin_unlock_irqrestore(&listen_id_priv->lock, flags); + + cm_id = iw_create_cm_id(listen_id_priv->id.device, + listen_id_priv->id.cm_handler, + listen_id_priv->id.context); + /* If the cm_id could not be created, ignore the request */ + if (IS_ERR(cm_id)) + return; + + cm_id->provider_data = iw_event->provider_data; + cm_id->local_addr = iw_event->local_addr; + cm_id->remote_addr = iw_event->remote_addr; + + cm_id_priv = container_of(cm_id, struct iwcm_id_private, id); + cm_id_priv->state = IW_CM_STATE_CONN_RECV; + + ret = alloc_work_entries(cm_id_priv, 3); + if (ret) { + iw_cm_reject(cm_id, NULL, 0); + iw_destroy_cm_id(cm_id); + return; + } + + /* Call the client CM handler */ + ret = cm_id->cm_handler(cm_id, iw_event); + if (ret) { + set_bit(IWCM_F_CALLBACK_DESTROY, &cm_id_priv->flags); + destroy_cm_id(cm_id); + if (atomic_read(&cm_id_priv->refcount)==0) + kfree(cm_id); + } + + if (iw_event->private_data_len) + kfree(iw_event->private_data); +} + +/* + * Passive Side: CM_ID <-- ESTABLISHED + * + * The provider generated an ESTABLISHED event which means that + * the MPA negotion has completed successfully and we are now in MPA + * FPDU mode. + * + * This event can only be received in the CONN_RECV state. If the + * remote peer closed, the ESTABLISHED event would be received followed + * by the CLOSE event. If the app closes, it will block until we wake + * it up after processing this event. + */ +static int cm_conn_est_handler(struct iwcm_id_private *cm_id_priv, + struct iw_cm_event *iw_event) +{ + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&cm_id_priv->lock, flags); + + /* + * We clear the CONNECT_WAIT bit here to allow the callback + * function to call iw_cm_disconnect. Calling iw_destroy_cm_id + * from a callback handler is not allowed. + */ + clear_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags); + BUG_ON(cm_id_priv->state != IW_CM_STATE_CONN_RECV); + cm_id_priv->state = IW_CM_STATE_ESTABLISHED; + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + ret = cm_id_priv->id.cm_handler(&cm_id_priv->id, iw_event); + wake_up_all(&cm_id_priv->connect_wait); + + return ret; +} + +/* + * Active Side: CM_ID <-- ESTABLISHED + * + * The app has called connect and is waiting for the established event to + * post it's requests to the server. This event will wake up anyone + * blocked in iw_cm_disconnect or iw_destroy_id. + */ +static int cm_conn_rep_handler(struct iwcm_id_private *cm_id_priv, + struct iw_cm_event *iw_event) +{ + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&cm_id_priv->lock, flags); + /* + * Clear the connect wait bit so a callback function calling + * iw_cm_disconnect will not wait and deadlock this thread + */ + clear_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags); + BUG_ON(cm_id_priv->state != IW_CM_STATE_CONN_SENT); + if (iw_event->status == IW_CM_EVENT_STATUS_ACCEPTED) { + cm_id_priv->id.local_addr = iw_event->local_addr; + cm_id_priv->id.remote_addr = iw_event->remote_addr; + cm_id_priv->state = IW_CM_STATE_ESTABLISHED; + } else { + /* REJECTED or RESET */ + cm_id_priv->id.device->iwcm->rem_ref(cm_id_priv->qp); + cm_id_priv->qp = NULL; + cm_id_priv->state = IW_CM_STATE_IDLE; + } + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + ret = cm_id_priv->id.cm_handler(&cm_id_priv->id, iw_event); + + if (iw_event->private_data_len) + kfree(iw_event->private_data); + + /* Wake up waiters on connect complete */ + wake_up_all(&cm_id_priv->connect_wait); + + return ret; +} + +/* + * CM_ID <-- CLOSING + * + * If in the ESTABLISHED state, move to CLOSING. + */ +static void cm_disconnect_handler(struct iwcm_id_private *cm_id_priv, + struct iw_cm_event *iw_event) +{ + unsigned long flags; + + spin_lock_irqsave(&cm_id_priv->lock, flags); + if (cm_id_priv->state == IW_CM_STATE_ESTABLISHED) + cm_id_priv->state = IW_CM_STATE_CLOSING; + spin_unlock_irqrestore(&cm_id_priv->lock, flags); +} + +/* + * CM_ID <-- IDLE + * + * If in the ESTBLISHED or CLOSING states, the QP will have have been + * moved by the provider to the ERR state. Disassociate the CM_ID from + * the QP, move to IDLE, and remove the 'connected' reference. + * + * If in some other state, the cm_id was destroyed asynchronously. + * This is the last reference that will result in waking up + * the app thread blocked in iw_destroy_cm_id. + */ +static int cm_close_handler(struct iwcm_id_private *cm_id_priv, + struct iw_cm_event *iw_event) +{ + unsigned long flags; + int ret = 0; + spin_lock_irqsave(&cm_id_priv->lock, flags); + + if (cm_id_priv->qp) { + cm_id_priv->id.device->iwcm->rem_ref(cm_id_priv->qp); + cm_id_priv->qp = NULL; + } + switch (cm_id_priv->state) { + case IW_CM_STATE_ESTABLISHED: + case IW_CM_STATE_CLOSING: + cm_id_priv->state = IW_CM_STATE_IDLE; + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + ret = cm_id_priv->id.cm_handler(&cm_id_priv->id, iw_event); + spin_lock_irqsave(&cm_id_priv->lock, flags); + break; + case IW_CM_STATE_DESTROYING: + break; + default: + BUG(); + } + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + + return ret; +} + +static int process_event(struct iwcm_id_private *cm_id_priv, + struct iw_cm_event *iw_event) +{ + int ret = 0; + + switch (iw_event->event) { + case IW_CM_EVENT_CONNECT_REQUEST: + cm_conn_req_handler(cm_id_priv, iw_event); + break; + case IW_CM_EVENT_CONNECT_REPLY: + ret = cm_conn_rep_handler(cm_id_priv, iw_event); + break; + case IW_CM_EVENT_ESTABLISHED: + ret = cm_conn_est_handler(cm_id_priv, iw_event); + break; + case IW_CM_EVENT_DISCONNECT: + cm_disconnect_handler(cm_id_priv, iw_event); + break; + case IW_CM_EVENT_CLOSE: + ret = cm_close_handler(cm_id_priv, iw_event); + break; + default: + BUG(); + } + + return ret; +} + +/* + * Process events on the work_list for the cm_id. If the callback + * function requests that the cm_id be deleted, a flag is set in the + * cm_id flags to indicate that when the last reference is + * removed, the cm_id is to be destroyed. This is necessary to + * distinguish between an object that will be destroyed by the app + * thread asleep on the destroy_comp list vs. an object destroyed + * here synchronously when the last reference is removed. + */ +static void cm_work_handler(void *arg) +{ + struct iwcm_work *work = arg, lwork; + struct iwcm_id_private *cm_id_priv = work->cm_id; + unsigned long flags; + int empty; + int ret = 0; + + spin_lock_irqsave(&cm_id_priv->lock, flags); + empty = list_empty(&cm_id_priv->work_list); + while (!empty) { + work = list_entry(cm_id_priv->work_list.next, + struct iwcm_work, list); + list_del_init(&work->list); + empty = list_empty(&cm_id_priv->work_list); + lwork = *work; + put_work(work); + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + + ret = process_event(cm_id_priv, &work->event); + if (ret) { + set_bit(IWCM_F_CALLBACK_DESTROY, &cm_id_priv->flags); + destroy_cm_id(&cm_id_priv->id); + } + BUG_ON(atomic_read(&cm_id_priv->refcount)==0); + if (iwcm_deref_id(cm_id_priv)) + return; + + if (atomic_read(&cm_id_priv->refcount)==0 && + test_bit(IWCM_F_CALLBACK_DESTROY, &cm_id_priv->flags)) { + dealloc_work_entries(cm_id_priv); + kfree(cm_id_priv); + return; + } + spin_lock_irqsave(&cm_id_priv->lock, flags); + } + spin_unlock_irqrestore(&cm_id_priv->lock, flags); +} + +/* + * This function is called on interrupt context. Schedule events on + * the iwcm_wq thread to allow callback functions to downcall into + * the CM and/or block. Events are queued to a per-CM_ID + * work_list. If this is the first event on the work_list, the work + * element is also queued on the iwcm_wq thread. + * + * Each event holds a reference on the cm_id. Until the last posted + * event has been delivered and processed, the cm_id cannot be + * deleted. + * + * Returns: + * 0 - the event was handled. + * -ENOMEM - the event was not handled due to lack of resources. + */ +static int cm_event_handler(struct iw_cm_id *cm_id, + struct iw_cm_event *iw_event) +{ + struct iwcm_work *work; + struct iwcm_id_private *cm_id_priv; + unsigned long flags; + int ret = 0; + + cm_id_priv = container_of(cm_id, struct iwcm_id_private, id); + + spin_lock_irqsave(&cm_id_priv->lock, flags); + work = get_work(cm_id_priv); + if (!work) { + ret = -ENOMEM; + goto out; + } + + INIT_WORK(&work->work, cm_work_handler, work); + work->cm_id = cm_id_priv; + work->event = *iw_event; + + if ((work->event.event == IW_CM_EVENT_CONNECT_REQUEST || + work->event.event == IW_CM_EVENT_CONNECT_REPLY) && + work->event.private_data_len) { + ret = copy_private_data(cm_id_priv, &work->event); + if (ret) { + put_work(work); + goto out; + } + } + + atomic_inc(&cm_id_priv->refcount); + if (list_empty(&cm_id_priv->work_list)) { + list_add_tail(&work->list, &cm_id_priv->work_list); + queue_work(iwcm_wq, &work->work); + } else + list_add_tail(&work->list, &cm_id_priv->work_list); +out: + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + return ret; +} + +static int iwcm_init_qp_init_attr(struct iwcm_id_private *cm_id_priv, + struct ib_qp_attr *qp_attr, + int *qp_attr_mask) +{ + unsigned long flags; + int ret; + + spin_lock_irqsave(&cm_id_priv->lock, flags); + switch (cm_id_priv->state) { + case IW_CM_STATE_IDLE: + case IW_CM_STATE_CONN_SENT: + case IW_CM_STATE_CONN_RECV: + case IW_CM_STATE_ESTABLISHED: + *qp_attr_mask = IB_QP_STATE | IB_QP_ACCESS_FLAGS; + qp_attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE | + IB_ACCESS_REMOTE_WRITE| + IB_ACCESS_REMOTE_READ; + ret = 0; + break; + default: + ret = -EINVAL; + break; + } + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + return ret; +} + +static int iwcm_init_qp_rts_attr(struct iwcm_id_private *cm_id_priv, + struct ib_qp_attr *qp_attr, + int *qp_attr_mask) +{ + unsigned long flags; + int ret; + + spin_lock_irqsave(&cm_id_priv->lock, flags); + switch (cm_id_priv->state) { + case IW_CM_STATE_IDLE: + case IW_CM_STATE_CONN_SENT: + case IW_CM_STATE_CONN_RECV: + case IW_CM_STATE_ESTABLISHED: + *qp_attr_mask = 0; + ret = 0; + break; + default: + ret = -EINVAL; + break; + } + spin_unlock_irqrestore(&cm_id_priv->lock, flags); + return ret; +} + +int iw_cm_init_qp_attr(struct iw_cm_id *cm_id, + struct ib_qp_attr *qp_attr, + int *qp_attr_mask) +{ + struct iwcm_id_private *cm_id_priv; + int ret; + + cm_id_priv = container_of(cm_id, struct iwcm_id_private, id); + switch (qp_attr->qp_state) { + case IB_QPS_INIT: + case IB_QPS_RTR: + ret = iwcm_init_qp_init_attr(cm_id_priv, + qp_attr, qp_attr_mask); + break; + case IB_QPS_RTS: + ret = iwcm_init_qp_rts_attr(cm_id_priv, + qp_attr, qp_attr_mask); + break; + default: + ret = -EINVAL; + break; + } + return ret; +} +EXPORT_SYMBOL(iw_cm_init_qp_attr); + +static int __init iw_cm_init(void) +{ + iwcm_wq = create_singlethread_workqueue("iw_cm_wq"); + if (!iwcm_wq) + return -ENOMEM; + + return 0; +} + +static void __exit iw_cm_cleanup(void) +{ + destroy_workqueue(iwcm_wq); +} + +module_init(iw_cm_init); +module_exit(iw_cm_cleanup); diff --git a/drivers/infiniband/core/iwcm.h b/drivers/infiniband/core/iwcm.h new file mode 100644 index 00000000000..3f6cc82564c --- /dev/null +++ b/drivers/infiniband/core/iwcm.h @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2005 Network Appliance, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef IWCM_H +#define IWCM_H + +enum iw_cm_state { + IW_CM_STATE_IDLE, /* unbound, inactive */ + IW_CM_STATE_LISTEN, /* listen waiting for connect */ + IW_CM_STATE_CONN_RECV, /* inbound waiting for user accept */ + IW_CM_STATE_CONN_SENT, /* outbound waiting for peer accept */ + IW_CM_STATE_ESTABLISHED, /* established */ + IW_CM_STATE_CLOSING, /* disconnect */ + IW_CM_STATE_DESTROYING /* object being deleted */ +}; + +struct iwcm_id_private { + struct iw_cm_id id; + enum iw_cm_state state; + unsigned long flags; + struct ib_qp *qp; + struct completion destroy_comp; + wait_queue_head_t connect_wait; + struct list_head work_list; + spinlock_t lock; + atomic_t refcount; + struct list_head work_free_list; +}; + +#define IWCM_F_CALLBACK_DESTROY 1 +#define IWCM_F_CONNECT_WAIT 2 + +#endif /* IWCM_H */ diff --git a/include/rdma/iw_cm.h b/include/rdma/iw_cm.h new file mode 100644 index 00000000000..aeefa9b740d --- /dev/null +++ b/include/rdma/iw_cm.h @@ -0,0 +1,258 @@ +/* + * Copyright (c) 2005 Network Appliance, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef IW_CM_H +#define IW_CM_H + +#include +#include + +struct iw_cm_id; + +enum iw_cm_event_type { + IW_CM_EVENT_CONNECT_REQUEST = 1, /* connect request received */ + IW_CM_EVENT_CONNECT_REPLY, /* reply from active connect request */ + IW_CM_EVENT_ESTABLISHED, /* passive side accept successful */ + IW_CM_EVENT_DISCONNECT, /* orderly shutdown */ + IW_CM_EVENT_CLOSE /* close complete */ +}; + +enum iw_cm_event_status { + IW_CM_EVENT_STATUS_OK = 0, /* request successful */ + IW_CM_EVENT_STATUS_ACCEPTED = 0, /* connect request accepted */ + IW_CM_EVENT_STATUS_REJECTED, /* connect request rejected */ + IW_CM_EVENT_STATUS_TIMEOUT, /* the operation timed out */ + IW_CM_EVENT_STATUS_RESET, /* reset from remote peer */ + IW_CM_EVENT_STATUS_EINVAL, /* asynchronous failure for bad parm */ +}; + +struct iw_cm_event { + enum iw_cm_event_type event; + enum iw_cm_event_status status; + struct sockaddr_in local_addr; + struct sockaddr_in remote_addr; + void *private_data; + u8 private_data_len; + void* provider_data; +}; + +/** + * iw_cm_handler - Function to be called by the IW CM when delivering events + * to the client. + * + * @cm_id: The IW CM identifier associated with the event. + * @event: Pointer to the event structure. + */ +typedef int (*iw_cm_handler)(struct iw_cm_id *cm_id, + struct iw_cm_event *event); + +/** + * iw_event_handler - Function called by the provider when delivering provider + * events to the IW CM. Returns either 0 indicating the event was processed + * or -errno if the event could not be processed. + * + * @cm_id: The IW CM identifier associated with the event. + * @event: Pointer to the event structure. + */ +typedef int (*iw_event_handler)(struct iw_cm_id *cm_id, + struct iw_cm_event *event); + +struct iw_cm_id { + iw_cm_handler cm_handler; /* client callback function */ + void *context; /* client cb context */ + struct ib_device *device; + struct sockaddr_in local_addr; + struct sockaddr_in remote_addr; + void *provider_data; /* provider private data */ + iw_event_handler event_handler; /* cb for provider + events */ + /* Used by provider to add and remove refs on IW cm_id */ + void (*add_ref)(struct iw_cm_id *); + void (*rem_ref)(struct iw_cm_id *); +}; + +struct iw_cm_conn_param { + const void *private_data; + u16 private_data_len; + u32 ord; + u32 ird; + u32 qpn; +}; + +struct iw_cm_verbs { + void (*add_ref)(struct ib_qp *qp); + + void (*rem_ref)(struct ib_qp *qp); + + struct ib_qp * (*get_qp)(struct ib_device *device, + int qpn); + + int (*connect)(struct iw_cm_id *cm_id, + struct iw_cm_conn_param *conn_param); + + int (*accept)(struct iw_cm_id *cm_id, + struct iw_cm_conn_param *conn_param); + + int (*reject)(struct iw_cm_id *cm_id, + const void *pdata, u8 pdata_len); + + int (*create_listen)(struct iw_cm_id *cm_id, + int backlog); + + int (*destroy_listen)(struct iw_cm_id *cm_id); +}; + +/** + * iw_create_cm_id - Create an IW CM identifier. + * + * @device: The IB device on which to create the IW CM identier. + * @event_handler: User callback invoked to report events associated with the + * returned IW CM identifier. + * @context: User specified context associated with the id. + */ +struct iw_cm_id *iw_create_cm_id(struct ib_device *device, + iw_cm_handler cm_handler, void *context); + +/** + * iw_destroy_cm_id - Destroy an IW CM identifier. + * + * @cm_id: The previously created IW CM identifier to destroy. + * + * The client can assume that no events will be delivered for the CM ID after + * this function returns. + */ +void iw_destroy_cm_id(struct iw_cm_id *cm_id); + +/** + * iw_cm_bind_qp - Unbind the specified IW CM identifier and QP + * + * @cm_id: The IW CM idenfier to unbind from the QP. + * @qp: The QP + * + * This is called by the provider when destroying the QP to ensure + * that any references held by the IWCM are released. It may also + * be called by the IWCM when destroying a CM_ID to that any + * references held by the provider are released. + */ +void iw_cm_unbind_qp(struct iw_cm_id *cm_id, struct ib_qp *qp); + +/** + * iw_cm_get_qp - Return the ib_qp associated with a QPN + * + * @ib_device: The IB device + * @qpn: The queue pair number + */ +struct ib_qp *iw_cm_get_qp(struct ib_device *device, int qpn); + +/** + * iw_cm_listen - Listen for incoming connection requests on the + * specified IW CM id. + * + * @cm_id: The IW CM identifier. + * @backlog: The maximum number of outstanding un-accepted inbound listen + * requests to queue. + * + * The source address and port number are specified in the IW CM identifier + * structure. + */ +int iw_cm_listen(struct iw_cm_id *cm_id, int backlog); + +/** + * iw_cm_accept - Called to accept an incoming connect request. + * + * @cm_id: The IW CM identifier associated with the connection request. + * @iw_param: Pointer to a structure containing connection establishment + * parameters. + * + * The specified cm_id will have been provided in the event data for a + * CONNECT_REQUEST event. Subsequent events related to this connection will be + * delivered to the specified IW CM identifier prior and may occur prior to + * the return of this function. If this function returns a non-zero value, the + * client can assume that no events will be delivered to the specified IW CM + * identifier. + */ +int iw_cm_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param); + +/** + * iw_cm_reject - Reject an incoming connection request. + * + * @cm_id: Connection identifier associated with the request. + * @private_daa: Pointer to data to deliver to the remote peer as part of the + * reject message. + * @private_data_len: The number of bytes in the private_data parameter. + * + * The client can assume that no events will be delivered to the specified IW + * CM identifier following the return of this function. The private_data + * buffer is available for reuse when this function returns. + */ +int iw_cm_reject(struct iw_cm_id *cm_id, const void *private_data, + u8 private_data_len); + +/** + * iw_cm_connect - Called to request a connection to a remote peer. + * + * @cm_id: The IW CM identifier for the connection. + * @iw_param: Pointer to a structure containing connection establishment + * parameters. + * + * Events may be delivered to the specified IW CM identifier prior to the + * return of this function. If this function returns a non-zero value, the + * client can assume that no events will be delivered to the specified IW CM + * identifier. + */ +int iw_cm_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param); + +/** + * iw_cm_disconnect - Close the specified connection. + * + * @cm_id: The IW CM identifier to close. + * @abrupt: If 0, the connection will be closed gracefully, otherwise, the + * connection will be reset. + * + * The IW CM identifier is still active until the IW_CM_EVENT_CLOSE event is + * delivered. + */ +int iw_cm_disconnect(struct iw_cm_id *cm_id, int abrupt); + +/** + * iw_cm_init_qp_attr - Called to initialize the attributes of the QP + * associated with a IW CM identifier. + * + * @cm_id: The IW CM identifier associated with the QP + * @qp_attr: Pointer to the QP attributes structure. + * @qp_attr_mask: Pointer to a bit vector specifying which QP attributes are + * valid. + */ +int iw_cm_init_qp_attr(struct iw_cm_id *cm_id, struct ib_qp_attr *qp_attr, + int *qp_attr_mask); + +#endif /* IW_CM_H */ -- cgit v1.2.3-70-g09d2 From 07ebafbaaa72aa6a35472879008f5a1d1d469a0c Mon Sep 17 00:00:00 2001 From: Tom Tucker Date: Thu, 3 Aug 2006 16:02:42 -0500 Subject: RDMA: iWARP Core Changes. Modifications to the existing rdma header files, core files, drivers, and ulp files to support iWARP, including: - Hook iWARP CM into the build system and use it in rdma_cm. - Convert enum ib_node_type to enum rdma_node_type, which includes the possibility of RDMA_NODE_RNIC, and update everything for this. Signed-off-by: Tom Tucker Signed-off-by: Steve Wise Signed-off-by: Roland Dreier --- drivers/infiniband/core/Makefile | 4 +- drivers/infiniband/core/addr.c | 18 +- drivers/infiniband/core/cache.c | 5 +- drivers/infiniband/core/cm.c | 3 + drivers/infiniband/core/cma.c | 356 ++++++++++++++++++++++++--- drivers/infiniband/core/device.c | 4 +- drivers/infiniband/core/mad.c | 7 +- drivers/infiniband/core/sa_query.c | 5 +- drivers/infiniband/core/smi.c | 16 +- drivers/infiniband/core/sysfs.c | 11 +- drivers/infiniband/core/ucm.c | 3 +- drivers/infiniband/core/user_mad.c | 5 +- drivers/infiniband/core/verbs.c | 17 ++ drivers/infiniband/hw/ehca/ehca_main.c | 2 +- drivers/infiniband/hw/ipath/ipath_verbs.c | 2 +- drivers/infiniband/hw/mthca/mthca_provider.c | 2 +- drivers/infiniband/ulp/ipoib/ipoib_main.c | 8 +- drivers/infiniband/ulp/srp/ib_srp.c | 2 +- include/rdma/ib_addr.h | 17 +- include/rdma/ib_verbs.h | 25 +- 20 files changed, 431 insertions(+), 81 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/Makefile b/drivers/infiniband/core/Makefile index 68e73ec2d1f..163d991eb8c 100644 --- a/drivers/infiniband/core/Makefile +++ b/drivers/infiniband/core/Makefile @@ -1,7 +1,7 @@ infiniband-$(CONFIG_INFINIBAND_ADDR_TRANS) := ib_addr.o rdma_cm.o obj-$(CONFIG_INFINIBAND) += ib_core.o ib_mad.o ib_sa.o \ - ib_cm.o $(infiniband-y) + ib_cm.o iw_cm.o $(infiniband-y) obj-$(CONFIG_INFINIBAND_USER_MAD) += ib_umad.o obj-$(CONFIG_INFINIBAND_USER_ACCESS) += ib_uverbs.o ib_ucm.o @@ -14,6 +14,8 @@ ib_sa-y := sa_query.o ib_cm-y := cm.o +iw_cm-y := iwcm.o + rdma_cm-y := cma.o ib_addr-y := addr.o diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c index d8e54e002ce..9cbf09e2052 100644 --- a/drivers/infiniband/core/addr.c +++ b/drivers/infiniband/core/addr.c @@ -61,12 +61,15 @@ static LIST_HEAD(req_list); static DECLARE_WORK(work, process_req, NULL); static struct workqueue_struct *addr_wq; -static int copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev, - unsigned char *dst_dev_addr) +int rdma_copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev, + const unsigned char *dst_dev_addr) { switch (dev->type) { case ARPHRD_INFINIBAND: - dev_addr->dev_type = IB_NODE_CA; + dev_addr->dev_type = RDMA_NODE_IB_CA; + break; + case ARPHRD_ETHER: + dev_addr->dev_type = RDMA_NODE_RNIC; break; default: return -EADDRNOTAVAIL; @@ -78,6 +81,7 @@ static int copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev, memcpy(dev_addr->dst_dev_addr, dst_dev_addr, MAX_ADDR_LEN); return 0; } +EXPORT_SYMBOL(rdma_copy_addr); int rdma_translate_ip(struct sockaddr *addr, struct rdma_dev_addr *dev_addr) { @@ -89,7 +93,7 @@ int rdma_translate_ip(struct sockaddr *addr, struct rdma_dev_addr *dev_addr) if (!dev) return -EADDRNOTAVAIL; - ret = copy_addr(dev_addr, dev, NULL); + ret = rdma_copy_addr(dev_addr, dev, NULL); dev_put(dev); return ret; } @@ -161,7 +165,7 @@ static int addr_resolve_remote(struct sockaddr_in *src_in, /* If the device does ARP internally, return 'done' */ if (rt->idev->dev->flags & IFF_NOARP) { - copy_addr(addr, rt->idev->dev, NULL); + rdma_copy_addr(addr, rt->idev->dev, NULL); goto put; } @@ -181,7 +185,7 @@ static int addr_resolve_remote(struct sockaddr_in *src_in, src_in->sin_addr.s_addr = rt->rt_src; } - ret = copy_addr(addr, neigh->dev, neigh->ha); + ret = rdma_copy_addr(addr, neigh->dev, neigh->ha); release: neigh_release(neigh); put: @@ -245,7 +249,7 @@ static int addr_resolve_local(struct sockaddr_in *src_in, if (ZERONET(src_ip)) { src_in->sin_family = dst_in->sin_family; src_in->sin_addr.s_addr = dst_ip; - ret = copy_addr(addr, dev, dev->dev_addr); + ret = rdma_copy_addr(addr, dev, dev->dev_addr); } else if (LOOPBACK(src_ip)) { ret = rdma_translate_ip((struct sockaddr *)dst_in, addr); if (!ret) diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index 75313ade2e0..20e9f64e67a 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -62,12 +62,13 @@ struct ib_update_work { static inline int start_port(struct ib_device *device) { - return device->node_type == IB_NODE_SWITCH ? 0 : 1; + return (device->node_type == RDMA_NODE_IB_SWITCH) ? 0 : 1; } static inline int end_port(struct ib_device *device) { - return device->node_type == IB_NODE_SWITCH ? 0 : device->phys_port_cnt; + return (device->node_type == RDMA_NODE_IB_SWITCH) ? + 0 : device->phys_port_cnt; } int ib_get_cached_gid(struct ib_device *device, diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 1c145fe92a5..e130d2e8951 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -3280,6 +3280,9 @@ static void cm_add_one(struct ib_device *device) int ret; u8 i; + if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB) + return; + cm_dev = kmalloc(sizeof(*cm_dev) + sizeof(*port) * device->phys_port_cnt, GFP_KERNEL); if (!cm_dev) diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 9d58bb59cd4..e88a7c652ca 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -35,6 +35,7 @@ #include #include #include +#include #include @@ -43,6 +44,7 @@ #include #include #include +#include MODULE_AUTHOR("Sean Hefty"); MODULE_DESCRIPTION("Generic RDMA CM Agent"); @@ -124,6 +126,7 @@ struct rdma_id_private { int query_id; union { struct ib_cm_id *ib; + struct iw_cm_id *iw; } cm_id; u32 seq_num; @@ -259,14 +262,23 @@ static void cma_detach_from_dev(struct rdma_id_private *id_priv) id_priv->cma_dev = NULL; } -static int cma_acquire_ib_dev(struct rdma_id_private *id_priv) +static int cma_acquire_dev(struct rdma_id_private *id_priv) { + enum rdma_node_type dev_type = id_priv->id.route.addr.dev_addr.dev_type; struct cma_device *cma_dev; union ib_gid gid; int ret = -ENODEV; - ib_addr_get_sgid(&id_priv->id.route.addr.dev_addr, &gid), - + switch (rdma_node_get_transport(dev_type)) { + case RDMA_TRANSPORT_IB: + ib_addr_get_sgid(&id_priv->id.route.addr.dev_addr, &gid); + break; + case RDMA_TRANSPORT_IWARP: + iw_addr_get_sgid(&id_priv->id.route.addr.dev_addr, &gid); + break; + default: + return -ENODEV; + } mutex_lock(&lock); list_for_each_entry(cma_dev, &dev_list, list) { ret = ib_find_cached_gid(cma_dev->device, &gid, @@ -280,16 +292,6 @@ static int cma_acquire_ib_dev(struct rdma_id_private *id_priv) return ret; } -static int cma_acquire_dev(struct rdma_id_private *id_priv) -{ - switch (id_priv->id.route.addr.dev_addr.dev_type) { - case IB_NODE_CA: - return cma_acquire_ib_dev(id_priv); - default: - return -ENODEV; - } -} - static void cma_deref_id(struct rdma_id_private *id_priv) { if (atomic_dec_and_test(&id_priv->refcount)) @@ -347,6 +349,16 @@ static int cma_init_ib_qp(struct rdma_id_private *id_priv, struct ib_qp *qp) IB_QP_PKEY_INDEX | IB_QP_PORT); } +static int cma_init_iw_qp(struct rdma_id_private *id_priv, struct ib_qp *qp) +{ + struct ib_qp_attr qp_attr; + + qp_attr.qp_state = IB_QPS_INIT; + qp_attr.qp_access_flags = IB_ACCESS_LOCAL_WRITE; + + return ib_modify_qp(qp, &qp_attr, IB_QP_STATE | IB_QP_ACCESS_FLAGS); +} + int rdma_create_qp(struct rdma_cm_id *id, struct ib_pd *pd, struct ib_qp_init_attr *qp_init_attr) { @@ -362,10 +374,13 @@ int rdma_create_qp(struct rdma_cm_id *id, struct ib_pd *pd, if (IS_ERR(qp)) return PTR_ERR(qp); - switch (id->device->node_type) { - case IB_NODE_CA: + switch (rdma_node_get_transport(id->device->node_type)) { + case RDMA_TRANSPORT_IB: ret = cma_init_ib_qp(id_priv, qp); break; + case RDMA_TRANSPORT_IWARP: + ret = cma_init_iw_qp(id_priv, qp); + break; default: ret = -ENOSYS; break; @@ -451,13 +466,17 @@ int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr, int ret; id_priv = container_of(id, struct rdma_id_private, id); - switch (id_priv->id.device->node_type) { - case IB_NODE_CA: + switch (rdma_node_get_transport(id_priv->id.device->node_type)) { + case RDMA_TRANSPORT_IB: ret = ib_cm_init_qp_attr(id_priv->cm_id.ib, qp_attr, qp_attr_mask); if (qp_attr->qp_state == IB_QPS_RTR) qp_attr->rq_psn = id_priv->seq_num; break; + case RDMA_TRANSPORT_IWARP: + ret = iw_cm_init_qp_attr(id_priv->cm_id.iw, qp_attr, + qp_attr_mask); + break; default: ret = -ENOSYS; break; @@ -590,8 +609,8 @@ static int cma_notify_user(struct rdma_id_private *id_priv, static void cma_cancel_route(struct rdma_id_private *id_priv) { - switch (id_priv->id.device->node_type) { - case IB_NODE_CA: + switch (rdma_node_get_transport(id_priv->id.device->node_type)) { + case RDMA_TRANSPORT_IB: if (id_priv->query) ib_sa_cancel_query(id_priv->query_id, id_priv->query); break; @@ -611,11 +630,15 @@ static void cma_destroy_listen(struct rdma_id_private *id_priv) cma_exch(id_priv, CMA_DESTROYING); if (id_priv->cma_dev) { - switch (id_priv->id.device->node_type) { - case IB_NODE_CA: + switch (rdma_node_get_transport(id_priv->id.device->node_type)) { + case RDMA_TRANSPORT_IB: if (id_priv->cm_id.ib && !IS_ERR(id_priv->cm_id.ib)) ib_destroy_cm_id(id_priv->cm_id.ib); break; + case RDMA_TRANSPORT_IWARP: + if (id_priv->cm_id.iw && !IS_ERR(id_priv->cm_id.iw)) + iw_destroy_cm_id(id_priv->cm_id.iw); + break; default: break; } @@ -690,11 +713,15 @@ void rdma_destroy_id(struct rdma_cm_id *id) cma_cancel_operation(id_priv, state); if (id_priv->cma_dev) { - switch (id->device->node_type) { - case IB_NODE_CA: + switch (rdma_node_get_transport(id->device->node_type)) { + case RDMA_TRANSPORT_IB: if (id_priv->cm_id.ib && !IS_ERR(id_priv->cm_id.ib)) ib_destroy_cm_id(id_priv->cm_id.ib); break; + case RDMA_TRANSPORT_IWARP: + if (id_priv->cm_id.iw && !IS_ERR(id_priv->cm_id.iw)) + iw_destroy_cm_id(id_priv->cm_id.iw); + break; default: break; } @@ -869,7 +896,7 @@ static struct rdma_id_private *cma_new_id(struct rdma_cm_id *listen_id, ib_addr_set_sgid(&rt->addr.dev_addr, &rt->path_rec[0].sgid); ib_addr_set_dgid(&rt->addr.dev_addr, &rt->path_rec[0].dgid); ib_addr_set_pkey(&rt->addr.dev_addr, be16_to_cpu(rt->path_rec[0].pkey)); - rt->addr.dev_addr.dev_type = IB_NODE_CA; + rt->addr.dev_addr.dev_type = RDMA_NODE_IB_CA; id_priv = container_of(id, struct rdma_id_private, id); id_priv->state = CMA_CONNECT; @@ -898,7 +925,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event) } atomic_inc(&conn_id->dev_remove); - ret = cma_acquire_ib_dev(conn_id); + ret = cma_acquire_dev(conn_id); if (ret) { ret = -ENODEV; cma_release_remove(conn_id); @@ -982,6 +1009,128 @@ static void cma_set_compare_data(enum rdma_port_space ps, struct sockaddr *addr, } } +static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event) +{ + struct rdma_id_private *id_priv = iw_id->context; + enum rdma_cm_event_type event = 0; + struct sockaddr_in *sin; + int ret = 0; + + atomic_inc(&id_priv->dev_remove); + + switch (iw_event->event) { + case IW_CM_EVENT_CLOSE: + event = RDMA_CM_EVENT_DISCONNECTED; + break; + case IW_CM_EVENT_CONNECT_REPLY: + sin = (struct sockaddr_in *) &id_priv->id.route.addr.src_addr; + *sin = iw_event->local_addr; + sin = (struct sockaddr_in *) &id_priv->id.route.addr.dst_addr; + *sin = iw_event->remote_addr; + if (iw_event->status) + event = RDMA_CM_EVENT_REJECTED; + else + event = RDMA_CM_EVENT_ESTABLISHED; + break; + case IW_CM_EVENT_ESTABLISHED: + event = RDMA_CM_EVENT_ESTABLISHED; + break; + default: + BUG_ON(1); + } + + ret = cma_notify_user(id_priv, event, iw_event->status, + iw_event->private_data, + iw_event->private_data_len); + if (ret) { + /* Destroy the CM ID by returning a non-zero value. */ + id_priv->cm_id.iw = NULL; + cma_exch(id_priv, CMA_DESTROYING); + cma_release_remove(id_priv); + rdma_destroy_id(&id_priv->id); + return ret; + } + + cma_release_remove(id_priv); + return ret; +} + +static int iw_conn_req_handler(struct iw_cm_id *cm_id, + struct iw_cm_event *iw_event) +{ + struct rdma_cm_id *new_cm_id; + struct rdma_id_private *listen_id, *conn_id; + struct sockaddr_in *sin; + struct net_device *dev = NULL; + int ret; + + listen_id = cm_id->context; + atomic_inc(&listen_id->dev_remove); + if (!cma_comp(listen_id, CMA_LISTEN)) { + ret = -ECONNABORTED; + goto out; + } + + /* Create a new RDMA id for the new IW CM ID */ + new_cm_id = rdma_create_id(listen_id->id.event_handler, + listen_id->id.context, + RDMA_PS_TCP); + if (!new_cm_id) { + ret = -ENOMEM; + goto out; + } + conn_id = container_of(new_cm_id, struct rdma_id_private, id); + atomic_inc(&conn_id->dev_remove); + conn_id->state = CMA_CONNECT; + + dev = ip_dev_find(iw_event->local_addr.sin_addr.s_addr); + if (!dev) { + ret = -EADDRNOTAVAIL; + cma_release_remove(conn_id); + rdma_destroy_id(new_cm_id); + goto out; + } + ret = rdma_copy_addr(&conn_id->id.route.addr.dev_addr, dev, NULL); + if (ret) { + cma_release_remove(conn_id); + rdma_destroy_id(new_cm_id); + goto out; + } + + ret = cma_acquire_dev(conn_id); + if (ret) { + cma_release_remove(conn_id); + rdma_destroy_id(new_cm_id); + goto out; + } + + conn_id->cm_id.iw = cm_id; + cm_id->context = conn_id; + cm_id->cm_handler = cma_iw_handler; + + sin = (struct sockaddr_in *) &new_cm_id->route.addr.src_addr; + *sin = iw_event->local_addr; + sin = (struct sockaddr_in *) &new_cm_id->route.addr.dst_addr; + *sin = iw_event->remote_addr; + + ret = cma_notify_user(conn_id, RDMA_CM_EVENT_CONNECT_REQUEST, 0, + iw_event->private_data, + iw_event->private_data_len); + if (ret) { + /* User wants to destroy the CM ID */ + conn_id->cm_id.iw = NULL; + cma_exch(conn_id, CMA_DESTROYING); + cma_release_remove(conn_id); + rdma_destroy_id(&conn_id->id); + } + +out: + if (dev) + dev_put(dev); + cma_release_remove(listen_id); + return ret; +} + static int cma_ib_listen(struct rdma_id_private *id_priv) { struct ib_cm_compare_data compare_data; @@ -1011,6 +1160,30 @@ static int cma_ib_listen(struct rdma_id_private *id_priv) return ret; } +static int cma_iw_listen(struct rdma_id_private *id_priv, int backlog) +{ + int ret; + struct sockaddr_in *sin; + + id_priv->cm_id.iw = iw_create_cm_id(id_priv->id.device, + iw_conn_req_handler, + id_priv); + if (IS_ERR(id_priv->cm_id.iw)) + return PTR_ERR(id_priv->cm_id.iw); + + sin = (struct sockaddr_in *) &id_priv->id.route.addr.src_addr; + id_priv->cm_id.iw->local_addr = *sin; + + ret = iw_cm_listen(id_priv->cm_id.iw, backlog); + + if (ret) { + iw_destroy_cm_id(id_priv->cm_id.iw); + id_priv->cm_id.iw = NULL; + } + + return ret; +} + static int cma_listen_handler(struct rdma_cm_id *id, struct rdma_cm_event *event) { @@ -1087,12 +1260,17 @@ int rdma_listen(struct rdma_cm_id *id, int backlog) id_priv->backlog = backlog; if (id->device) { - switch (id->device->node_type) { - case IB_NODE_CA: + switch (rdma_node_get_transport(id->device->node_type)) { + case RDMA_TRANSPORT_IB: ret = cma_ib_listen(id_priv); if (ret) goto err; break; + case RDMA_TRANSPORT_IWARP: + ret = cma_iw_listen(id_priv, backlog); + if (ret) + goto err; + break; default: ret = -ENOSYS; goto err; @@ -1231,6 +1409,23 @@ err: } EXPORT_SYMBOL(rdma_set_ib_paths); +static int cma_resolve_iw_route(struct rdma_id_private *id_priv, int timeout_ms) +{ + struct cma_work *work; + + work = kzalloc(sizeof *work, GFP_KERNEL); + if (!work) + return -ENOMEM; + + work->id = id_priv; + INIT_WORK(&work->work, cma_work_handler, work); + work->old_state = CMA_ROUTE_QUERY; + work->new_state = CMA_ROUTE_RESOLVED; + work->event.event = RDMA_CM_EVENT_ROUTE_RESOLVED; + queue_work(cma_wq, &work->work); + return 0; +} + int rdma_resolve_route(struct rdma_cm_id *id, int timeout_ms) { struct rdma_id_private *id_priv; @@ -1241,10 +1436,13 @@ int rdma_resolve_route(struct rdma_cm_id *id, int timeout_ms) return -EINVAL; atomic_inc(&id_priv->refcount); - switch (id->device->node_type) { - case IB_NODE_CA: + switch (rdma_node_get_transport(id->device->node_type)) { + case RDMA_TRANSPORT_IB: ret = cma_resolve_ib_route(id_priv, timeout_ms); break; + case RDMA_TRANSPORT_IWARP: + ret = cma_resolve_iw_route(id_priv, timeout_ms); + break; default: ret = -ENOSYS; break; @@ -1649,6 +1847,47 @@ out: return ret; } +static int cma_connect_iw(struct rdma_id_private *id_priv, + struct rdma_conn_param *conn_param) +{ + struct iw_cm_id *cm_id; + struct sockaddr_in* sin; + int ret; + struct iw_cm_conn_param iw_param; + + cm_id = iw_create_cm_id(id_priv->id.device, cma_iw_handler, id_priv); + if (IS_ERR(cm_id)) { + ret = PTR_ERR(cm_id); + goto out; + } + + id_priv->cm_id.iw = cm_id; + + sin = (struct sockaddr_in*) &id_priv->id.route.addr.src_addr; + cm_id->local_addr = *sin; + + sin = (struct sockaddr_in*) &id_priv->id.route.addr.dst_addr; + cm_id->remote_addr = *sin; + + ret = cma_modify_qp_rtr(&id_priv->id); + if (ret) { + iw_destroy_cm_id(cm_id); + return ret; + } + + iw_param.ord = conn_param->initiator_depth; + iw_param.ird = conn_param->responder_resources; + iw_param.private_data = conn_param->private_data; + iw_param.private_data_len = conn_param->private_data_len; + if (id_priv->id.qp) + iw_param.qpn = id_priv->qp_num; + else + iw_param.qpn = conn_param->qp_num; + ret = iw_cm_connect(cm_id, &iw_param); +out: + return ret; +} + int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param) { struct rdma_id_private *id_priv; @@ -1664,10 +1903,13 @@ int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param) id_priv->srq = conn_param->srq; } - switch (id->device->node_type) { - case IB_NODE_CA: + switch (rdma_node_get_transport(id->device->node_type)) { + case RDMA_TRANSPORT_IB: ret = cma_connect_ib(id_priv, conn_param); break; + case RDMA_TRANSPORT_IWARP: + ret = cma_connect_iw(id_priv, conn_param); + break; default: ret = -ENOSYS; break; @@ -1708,6 +1950,28 @@ static int cma_accept_ib(struct rdma_id_private *id_priv, return ib_send_cm_rep(id_priv->cm_id.ib, &rep); } +static int cma_accept_iw(struct rdma_id_private *id_priv, + struct rdma_conn_param *conn_param) +{ + struct iw_cm_conn_param iw_param; + int ret; + + ret = cma_modify_qp_rtr(&id_priv->id); + if (ret) + return ret; + + iw_param.ord = conn_param->initiator_depth; + iw_param.ird = conn_param->responder_resources; + iw_param.private_data = conn_param->private_data; + iw_param.private_data_len = conn_param->private_data_len; + if (id_priv->id.qp) { + iw_param.qpn = id_priv->qp_num; + } else + iw_param.qpn = conn_param->qp_num; + + return iw_cm_accept(id_priv->cm_id.iw, &iw_param); +} + int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param) { struct rdma_id_private *id_priv; @@ -1723,13 +1987,16 @@ int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param) id_priv->srq = conn_param->srq; } - switch (id->device->node_type) { - case IB_NODE_CA: + switch (rdma_node_get_transport(id->device->node_type)) { + case RDMA_TRANSPORT_IB: if (conn_param) ret = cma_accept_ib(id_priv, conn_param); else ret = cma_rep_recv(id_priv); break; + case RDMA_TRANSPORT_IWARP: + ret = cma_accept_iw(id_priv, conn_param); + break; default: ret = -ENOSYS; break; @@ -1756,12 +2023,16 @@ int rdma_reject(struct rdma_cm_id *id, const void *private_data, if (!cma_comp(id_priv, CMA_CONNECT)) return -EINVAL; - switch (id->device->node_type) { - case IB_NODE_CA: + switch (rdma_node_get_transport(id->device->node_type)) { + case RDMA_TRANSPORT_IB: ret = ib_send_cm_rej(id_priv->cm_id.ib, IB_CM_REJ_CONSUMER_DEFINED, NULL, 0, private_data, private_data_len); break; + case RDMA_TRANSPORT_IWARP: + ret = iw_cm_reject(id_priv->cm_id.iw, + private_data, private_data_len); + break; default: ret = -ENOSYS; break; @@ -1780,17 +2051,20 @@ int rdma_disconnect(struct rdma_cm_id *id) !cma_comp(id_priv, CMA_DISCONNECT)) return -EINVAL; - ret = cma_modify_qp_err(id); - if (ret) - goto out; - - switch (id->device->node_type) { - case IB_NODE_CA: + switch (rdma_node_get_transport(id->device->node_type)) { + case RDMA_TRANSPORT_IB: + ret = cma_modify_qp_err(id); + if (ret) + goto out; /* Initiate or respond to a disconnect. */ if (ib_send_cm_dreq(id_priv->cm_id.ib, NULL, 0)) ib_send_cm_drep(id_priv->cm_id.ib, NULL, 0); break; + case RDMA_TRANSPORT_IWARP: + ret = iw_cm_disconnect(id_priv->cm_id.iw, 0); + break; default: + ret = -EINVAL; break; } out: diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index b2f3cb91d9b..d978fbe9753 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -505,7 +505,7 @@ int ib_query_port(struct ib_device *device, u8 port_num, struct ib_port_attr *port_attr) { - if (device->node_type == IB_NODE_SWITCH) { + if (device->node_type == RDMA_NODE_IB_SWITCH) { if (port_num) return -EINVAL; } else if (port_num < 1 || port_num > device->phys_port_cnt) @@ -580,7 +580,7 @@ int ib_modify_port(struct ib_device *device, u8 port_num, int port_modify_mask, struct ib_port_modify *port_modify) { - if (device->node_type == IB_NODE_SWITCH) { + if (device->node_type == RDMA_NODE_IB_SWITCH) { if (port_num) return -EINVAL; } else if (port_num < 1 || port_num > device->phys_port_cnt) diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 32d3028b274..082f03c158f 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -2876,7 +2876,10 @@ static void ib_mad_init_device(struct ib_device *device) { int start, end, i; - if (device->node_type == IB_NODE_SWITCH) { + if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB) + return; + + if (device->node_type == RDMA_NODE_IB_SWITCH) { start = 0; end = 0; } else { @@ -2923,7 +2926,7 @@ static void ib_mad_remove_device(struct ib_device *device) { int i, num_ports, cur_port; - if (device->node_type == IB_NODE_SWITCH) { + if (device->node_type == RDMA_NODE_IB_SWITCH) { num_ports = 1; cur_port = 0; } else { diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c index df762ba4868..ca8760a7d88 100644 --- a/drivers/infiniband/core/sa_query.c +++ b/drivers/infiniband/core/sa_query.c @@ -919,7 +919,10 @@ static void ib_sa_add_one(struct ib_device *device) struct ib_sa_device *sa_dev; int s, e, i; - if (device->node_type == IB_NODE_SWITCH) + if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB) + return; + + if (device->node_type == RDMA_NODE_IB_SWITCH) s = e = 0; else { s = 1; diff --git a/drivers/infiniband/core/smi.c b/drivers/infiniband/core/smi.c index 35852e794e2..54b81e17ad5 100644 --- a/drivers/infiniband/core/smi.c +++ b/drivers/infiniband/core/smi.c @@ -64,7 +64,7 @@ int smi_handle_dr_smp_send(struct ib_smp *smp, /* C14-9:2 */ if (hop_ptr && hop_ptr < hop_cnt) { - if (node_type != IB_NODE_SWITCH) + if (node_type != RDMA_NODE_IB_SWITCH) return 0; /* smp->return_path set when received */ @@ -77,7 +77,7 @@ int smi_handle_dr_smp_send(struct ib_smp *smp, if (hop_ptr == hop_cnt) { /* smp->return_path set when received */ smp->hop_ptr++; - return (node_type == IB_NODE_SWITCH || + return (node_type == RDMA_NODE_IB_SWITCH || smp->dr_dlid == IB_LID_PERMISSIVE); } @@ -95,7 +95,7 @@ int smi_handle_dr_smp_send(struct ib_smp *smp, /* C14-13:2 */ if (2 <= hop_ptr && hop_ptr <= hop_cnt) { - if (node_type != IB_NODE_SWITCH) + if (node_type != RDMA_NODE_IB_SWITCH) return 0; smp->hop_ptr--; @@ -107,7 +107,7 @@ int smi_handle_dr_smp_send(struct ib_smp *smp, if (hop_ptr == 1) { smp->hop_ptr--; /* C14-13:3 -- SMPs destined for SM shouldn't be here */ - return (node_type == IB_NODE_SWITCH || + return (node_type == RDMA_NODE_IB_SWITCH || smp->dr_slid == IB_LID_PERMISSIVE); } @@ -142,7 +142,7 @@ int smi_handle_dr_smp_recv(struct ib_smp *smp, /* C14-9:2 -- intermediate hop */ if (hop_ptr && hop_ptr < hop_cnt) { - if (node_type != IB_NODE_SWITCH) + if (node_type != RDMA_NODE_IB_SWITCH) return 0; smp->return_path[hop_ptr] = port_num; @@ -156,7 +156,7 @@ int smi_handle_dr_smp_recv(struct ib_smp *smp, smp->return_path[hop_ptr] = port_num; /* smp->hop_ptr updated when sending */ - return (node_type == IB_NODE_SWITCH || + return (node_type == RDMA_NODE_IB_SWITCH || smp->dr_dlid == IB_LID_PERMISSIVE); } @@ -175,7 +175,7 @@ int smi_handle_dr_smp_recv(struct ib_smp *smp, /* C14-13:2 */ if (2 <= hop_ptr && hop_ptr <= hop_cnt) { - if (node_type != IB_NODE_SWITCH) + if (node_type != RDMA_NODE_IB_SWITCH) return 0; /* smp->hop_ptr updated when sending */ @@ -190,7 +190,7 @@ int smi_handle_dr_smp_recv(struct ib_smp *smp, return 1; } /* smp->hop_ptr updated when sending */ - return (node_type == IB_NODE_SWITCH); + return (node_type == RDMA_NODE_IB_SWITCH); } /* C14-13:4 -- hop_ptr = 0 -> give to SM */ diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index fb6660564a3..709323c14c5 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -589,10 +589,11 @@ static ssize_t show_node_type(struct class_device *cdev, char *buf) return -ENODEV; switch (dev->node_type) { - case IB_NODE_CA: return sprintf(buf, "%d: CA\n", dev->node_type); - case IB_NODE_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); - case IB_NODE_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); - default: return sprintf(buf, "%d: \n", dev->node_type); + case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type); + case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type); + case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); + case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); + default: return sprintf(buf, "%d: \n", dev->node_type); } } @@ -708,7 +709,7 @@ int ib_device_register_sysfs(struct ib_device *device) if (ret) goto err_put; - if (device->node_type == IB_NODE_SWITCH) { + if (device->node_type == RDMA_NODE_IB_SWITCH) { ret = add_port(device, 0); if (ret) goto err_put; diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c index e74c964af7f..ad4f4d5c292 100644 --- a/drivers/infiniband/core/ucm.c +++ b/drivers/infiniband/core/ucm.c @@ -1247,7 +1247,8 @@ static void ib_ucm_add_one(struct ib_device *device) { struct ib_ucm_device *ucm_dev; - if (!device->alloc_ucontext) + if (!device->alloc_ucontext || + rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB) return; ucm_dev = kzalloc(sizeof *ucm_dev, GFP_KERNEL); diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index 8a455aec758..807fbd6b841 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -1032,7 +1032,10 @@ static void ib_umad_add_one(struct ib_device *device) struct ib_umad_device *umad_dev; int s, e, i; - if (device->node_type == IB_NODE_SWITCH) + if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB) + return; + + if (device->node_type == RDMA_NODE_IB_SWITCH) s = e = 0; else { s = 1; diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 06f98e9e14f..8b5dd3649bb 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -79,6 +79,23 @@ enum ib_rate mult_to_ib_rate(int mult) } EXPORT_SYMBOL(mult_to_ib_rate); +enum rdma_transport_type +rdma_node_get_transport(enum rdma_node_type node_type) +{ + switch (node_type) { + case RDMA_NODE_IB_CA: + case RDMA_NODE_IB_SWITCH: + case RDMA_NODE_IB_ROUTER: + return RDMA_TRANSPORT_IB; + case RDMA_NODE_RNIC: + return RDMA_TRANSPORT_IWARP; + default: + BUG(); + return 0; + } +} +EXPORT_SYMBOL(rdma_node_get_transport); + /* Protection domains */ struct ib_pd *ib_alloc_pd(struct ib_device *device) diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c index 2a99f2d13cd..2380994418a 100644 --- a/drivers/infiniband/hw/ehca/ehca_main.c +++ b/drivers/infiniband/hw/ehca/ehca_main.c @@ -269,7 +269,7 @@ int ehca_register_device(struct ehca_shca *shca) (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); - shca->ib_device.node_type = IB_NODE_CA; + shca->ib_device.node_type = RDMA_NODE_IB_CA; shca->ib_device.phys_port_cnt = shca->num_ports; shca->ib_device.dma_device = &shca->ibmebus_dev->ofdev.dev; shca->ib_device.query_device = ehca_query_device; diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index fbda7739715..b8381c5e72b 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -1538,7 +1538,7 @@ int ipath_register_ib_device(struct ipath_devdata *dd) (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) | (1ull << IB_USER_VERBS_CMD_POST_SRQ_RECV); - dev->node_type = IB_NODE_CA; + dev->node_type = RDMA_NODE_IB_CA; dev->phys_port_cnt = 1; dev->dma_device = &dd->pcidev->dev; dev->class_dev.dev = dev->dma_device; diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c index 265b1d1c4a6..981fe2eebdf 100644 --- a/drivers/infiniband/hw/mthca/mthca_provider.c +++ b/drivers/infiniband/hw/mthca/mthca_provider.c @@ -1288,7 +1288,7 @@ int mthca_register_device(struct mthca_dev *dev) (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); - dev->ib_dev.node_type = IB_NODE_CA; + dev->ib_dev.node_type = RDMA_NODE_IB_CA; dev->ib_dev.phys_port_cnt = dev->limits.num_ports; dev->ib_dev.dma_device = &dev->pdev->dev; dev->ib_dev.class_dev.dev = &dev->pdev->dev; diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 36d76987a48..e9a7659eb1d 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1111,13 +1111,16 @@ static void ipoib_add_one(struct ib_device *device) struct ipoib_dev_priv *priv; int s, e, p; + if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB) + return; + dev_list = kmalloc(sizeof *dev_list, GFP_KERNEL); if (!dev_list) return; INIT_LIST_HEAD(dev_list); - if (device->node_type == IB_NODE_SWITCH) { + if (device->node_type == RDMA_NODE_IB_SWITCH) { s = 0; e = 0; } else { @@ -1141,6 +1144,9 @@ static void ipoib_remove_one(struct ib_device *device) struct ipoib_dev_priv *priv, *tmp; struct list_head *dev_list; + if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB) + return; + dev_list = ib_get_client_data(device, &ipoib_client); list_for_each_entry_safe(priv, tmp, dev_list, list) { diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 61c13d1e050..feb1fcd0f2f 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -1899,7 +1899,7 @@ static void srp_add_one(struct ib_device *device) if (IS_ERR(srp_dev->fmr_pool)) srp_dev->fmr_pool = NULL; - if (device->node_type == IB_NODE_SWITCH) { + if (device->node_type == RDMA_NODE_IB_SWITCH) { s = 0; e = 0; } else { diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h index 0ff67398928..81b62307621 100644 --- a/include/rdma/ib_addr.h +++ b/include/rdma/ib_addr.h @@ -40,7 +40,7 @@ struct rdma_dev_addr { unsigned char src_dev_addr[MAX_ADDR_LEN]; unsigned char dst_dev_addr[MAX_ADDR_LEN]; unsigned char broadcast[MAX_ADDR_LEN]; - enum ib_node_type dev_type; + enum rdma_node_type dev_type; }; /** @@ -72,6 +72,9 @@ int rdma_resolve_ip(struct sockaddr *src_addr, struct sockaddr *dst_addr, void rdma_addr_cancel(struct rdma_dev_addr *addr); +int rdma_copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev, + const unsigned char *dst_dev_addr); + static inline int ip_addr_size(struct sockaddr *addr) { return addr->sa_family == AF_INET6 ? @@ -113,4 +116,16 @@ static inline void ib_addr_set_dgid(struct rdma_dev_addr *dev_addr, memcpy(dev_addr->dst_dev_addr + 4, gid, sizeof *gid); } +static inline void iw_addr_get_sgid(struct rdma_dev_addr *dev_addr, + union ib_gid *gid) +{ + memcpy(gid, dev_addr->src_dev_addr, sizeof *gid); +} + +static inline void iw_addr_get_dgid(struct rdma_dev_addr *dev_addr, + union ib_gid *gid) +{ + memcpy(gid, dev_addr->dst_dev_addr, sizeof *gid); +} + #endif /* IB_ADDR_H */ diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 61eed399611..8eacc351099 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -56,12 +56,22 @@ union ib_gid { } global; }; -enum ib_node_type { - IB_NODE_CA = 1, - IB_NODE_SWITCH, - IB_NODE_ROUTER +enum rdma_node_type { + /* IB values map to NodeInfo:NodeType. */ + RDMA_NODE_IB_CA = 1, + RDMA_NODE_IB_SWITCH, + RDMA_NODE_IB_ROUTER, + RDMA_NODE_RNIC }; +enum rdma_transport_type { + RDMA_TRANSPORT_IB, + RDMA_TRANSPORT_IWARP +}; + +enum rdma_transport_type +rdma_node_get_transport(enum rdma_node_type node_type) __attribute_const__; + enum ib_device_cap_flags { IB_DEVICE_RESIZE_MAX_WR = 1, IB_DEVICE_BAD_PKEY_CNTR = (1<<1), @@ -78,6 +88,9 @@ enum ib_device_cap_flags { IB_DEVICE_RC_RNR_NAK_GEN = (1<<12), IB_DEVICE_SRQ_RESIZE = (1<<13), IB_DEVICE_N_NOTIFY_CQ = (1<<14), + IB_DEVICE_ZERO_STAG = (1<<15), + IB_DEVICE_SEND_W_INV = (1<<16), + IB_DEVICE_MEM_WINDOW = (1<<17) }; enum ib_atomic_cap { @@ -835,6 +848,8 @@ struct ib_cache { u8 *lmc_cache; }; +struct iw_cm_verbs; + struct ib_device { struct device *dma_device; @@ -851,6 +866,8 @@ struct ib_device { u32 flags; + struct iw_cm_verbs *iwcm; + int (*query_device)(struct ib_device *device, struct ib_device_attr *device_attr); int (*query_port)(struct ib_device *device, -- cgit v1.2.3-70-g09d2 From f94b533d091a42da92d908eb7b3f9ade1923f90d Mon Sep 17 00:00:00 2001 From: Tom Tucker Date: Fri, 22 Sep 2006 15:22:48 -0700 Subject: RDMA/amso1100: Add driver for Ammasso 1100 RNIC Add a driver for the Ammasso 1100 gigabit ethernet RNIC. Signed-off-by: Tom Tucker Signed-off-by: Steve Wise Signed-off-by: Roland Dreier --- MAINTAINERS | 8 + drivers/infiniband/Kconfig | 1 + drivers/infiniband/Makefile | 1 + drivers/infiniband/hw/amso1100/Kbuild | 8 + drivers/infiniband/hw/amso1100/Kconfig | 15 + drivers/infiniband/hw/amso1100/c2.c | 1255 +++++++++++++++++++++ drivers/infiniband/hw/amso1100/c2.h | 551 ++++++++++ drivers/infiniband/hw/amso1100/c2_ae.c | 321 ++++++ drivers/infiniband/hw/amso1100/c2_ae.h | 108 ++ drivers/infiniband/hw/amso1100/c2_alloc.c | 144 +++ drivers/infiniband/hw/amso1100/c2_cm.c | 452 ++++++++ drivers/infiniband/hw/amso1100/c2_cq.c | 433 ++++++++ drivers/infiniband/hw/amso1100/c2_intr.c | 209 ++++ drivers/infiniband/hw/amso1100/c2_mm.c | 375 +++++++ drivers/infiniband/hw/amso1100/c2_mq.c | 174 +++ drivers/infiniband/hw/amso1100/c2_mq.h | 106 ++ drivers/infiniband/hw/amso1100/c2_pd.c | 89 ++ drivers/infiniband/hw/amso1100/c2_provider.c | 869 +++++++++++++++ drivers/infiniband/hw/amso1100/c2_provider.h | 181 +++ drivers/infiniband/hw/amso1100/c2_qp.c | 975 +++++++++++++++++ drivers/infiniband/hw/amso1100/c2_rnic.c | 663 +++++++++++ drivers/infiniband/hw/amso1100/c2_status.h | 158 +++ drivers/infiniband/hw/amso1100/c2_user.h | 82 ++ drivers/infiniband/hw/amso1100/c2_vq.c | 260 +++++ drivers/infiniband/hw/amso1100/c2_vq.h | 63 ++ drivers/infiniband/hw/amso1100/c2_wr.h | 1520 ++++++++++++++++++++++++++ 26 files changed, 9021 insertions(+) create mode 100644 drivers/infiniband/hw/amso1100/Kbuild create mode 100644 drivers/infiniband/hw/amso1100/Kconfig create mode 100644 drivers/infiniband/hw/amso1100/c2.c create mode 100644 drivers/infiniband/hw/amso1100/c2.h create mode 100644 drivers/infiniband/hw/amso1100/c2_ae.c create mode 100644 drivers/infiniband/hw/amso1100/c2_ae.h create mode 100644 drivers/infiniband/hw/amso1100/c2_alloc.c create mode 100644 drivers/infiniband/hw/amso1100/c2_cm.c create mode 100644 drivers/infiniband/hw/amso1100/c2_cq.c create mode 100644 drivers/infiniband/hw/amso1100/c2_intr.c create mode 100644 drivers/infiniband/hw/amso1100/c2_mm.c create mode 100644 drivers/infiniband/hw/amso1100/c2_mq.c create mode 100644 drivers/infiniband/hw/amso1100/c2_mq.h create mode 100644 drivers/infiniband/hw/amso1100/c2_pd.c create mode 100644 drivers/infiniband/hw/amso1100/c2_provider.c create mode 100644 drivers/infiniband/hw/amso1100/c2_provider.h create mode 100644 drivers/infiniband/hw/amso1100/c2_qp.c create mode 100644 drivers/infiniband/hw/amso1100/c2_rnic.c create mode 100644 drivers/infiniband/hw/amso1100/c2_status.h create mode 100644 drivers/infiniband/hw/amso1100/c2_user.h create mode 100644 drivers/infiniband/hw/amso1100/c2_vq.c create mode 100644 drivers/infiniband/hw/amso1100/c2_vq.h create mode 100644 drivers/infiniband/hw/amso1100/c2_wr.h (limited to 'drivers') diff --git a/MAINTAINERS b/MAINTAINERS index 830bec779d4..b08c537018d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -298,6 +298,14 @@ L: info-linux@geode.amd.com W: http://www.amd.com/us-en/ConnectivitySolutions/TechnicalResources/0,,50_2334_2452_11363,00.html S: Supported +AMSO1100 RNIC DRIVER +P: Tom Tucker +M: tom@opengridcomputing.com +P: Steve Wise +M: swise@opengridcomputing.com +L: openib-general@openib.org +S: Maintained + AOA (Apple Onboard Audio) ALSA DRIVER P: Johannes Berg M: johannes@sipsolutions.net diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig index 9a329b2c108..9edfacee7d8 100644 --- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -37,6 +37,7 @@ config INFINIBAND_ADDR_TRANS source "drivers/infiniband/hw/mthca/Kconfig" source "drivers/infiniband/hw/ipath/Kconfig" source "drivers/infiniband/hw/ehca/Kconfig" +source "drivers/infiniband/hw/amso1100/Kconfig" source "drivers/infiniband/ulp/ipoib/Kconfig" diff --git a/drivers/infiniband/Makefile b/drivers/infiniband/Makefile index 08cff32d900..2b5d1098ef4 100644 --- a/drivers/infiniband/Makefile +++ b/drivers/infiniband/Makefile @@ -2,6 +2,7 @@ obj-$(CONFIG_INFINIBAND) += core/ obj-$(CONFIG_INFINIBAND_MTHCA) += hw/mthca/ obj-$(CONFIG_INFINIBAND_IPATH) += hw/ipath/ obj-$(CONFIG_INFINIBAND_EHCA) += hw/ehca/ +obj-$(CONFIG_INFINIBAND_AMSO1100) += hw/amso1100/ obj-$(CONFIG_INFINIBAND_IPOIB) += ulp/ipoib/ obj-$(CONFIG_INFINIBAND_SRP) += ulp/srp/ obj-$(CONFIG_INFINIBAND_ISER) += ulp/iser/ diff --git a/drivers/infiniband/hw/amso1100/Kbuild b/drivers/infiniband/hw/amso1100/Kbuild new file mode 100644 index 00000000000..06964c4af84 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/Kbuild @@ -0,0 +1,8 @@ +ifdef CONFIG_INFINIBAND_AMSO1100_DEBUG +EXTRA_CFLAGS += -DDEBUG +endif + +obj-$(CONFIG_INFINIBAND_AMSO1100) += iw_c2.o + +iw_c2-y := c2.o c2_provider.o c2_rnic.o c2_alloc.o c2_mq.o c2_ae.o c2_vq.o \ + c2_intr.o c2_cq.o c2_qp.o c2_cm.o c2_mm.o c2_pd.o diff --git a/drivers/infiniband/hw/amso1100/Kconfig b/drivers/infiniband/hw/amso1100/Kconfig new file mode 100644 index 00000000000..809cb14ac6d --- /dev/null +++ b/drivers/infiniband/hw/amso1100/Kconfig @@ -0,0 +1,15 @@ +config INFINIBAND_AMSO1100 + tristate "Ammasso 1100 HCA support" + depends on PCI && INET && INFINIBAND + ---help--- + This is a low-level driver for the Ammasso 1100 host + channel adapter (HCA). + +config INFINIBAND_AMSO1100_DEBUG + bool "Verbose debugging output" + depends on INFINIBAND_AMSO1100 + default n + ---help--- + This option causes the amso1100 driver to produce a bunch of + debug messages. Select this if you are developing the driver + or trying to diagnose a problem. diff --git a/drivers/infiniband/hw/amso1100/c2.c b/drivers/infiniband/hw/amso1100/c2.c new file mode 100644 index 00000000000..9e9120f3601 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2.c @@ -0,0 +1,1255 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include "c2.h" +#include "c2_provider.h" + +MODULE_AUTHOR("Tom Tucker "); +MODULE_DESCRIPTION("Ammasso AMSO1100 Low-level iWARP Driver"); +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_VERSION(DRV_VERSION); + +static const u32 default_msg = NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK + | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN; + +static int debug = -1; /* defaults above */ +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)"); + +static int c2_up(struct net_device *netdev); +static int c2_down(struct net_device *netdev); +static int c2_xmit_frame(struct sk_buff *skb, struct net_device *netdev); +static void c2_tx_interrupt(struct net_device *netdev); +static void c2_rx_interrupt(struct net_device *netdev); +static irqreturn_t c2_interrupt(int irq, void *dev_id, struct pt_regs *regs); +static void c2_tx_timeout(struct net_device *netdev); +static int c2_change_mtu(struct net_device *netdev, int new_mtu); +static void c2_reset(struct c2_port *c2_port); +static struct net_device_stats *c2_get_stats(struct net_device *netdev); + +static struct pci_device_id c2_pci_table[] = { + { PCI_DEVICE(0x18b8, 0xb001) }, + { 0 } +}; + +MODULE_DEVICE_TABLE(pci, c2_pci_table); + +static void c2_print_macaddr(struct net_device *netdev) +{ + pr_debug("%s: MAC %02X:%02X:%02X:%02X:%02X:%02X, " + "IRQ %u\n", netdev->name, + netdev->dev_addr[0], netdev->dev_addr[1], netdev->dev_addr[2], + netdev->dev_addr[3], netdev->dev_addr[4], netdev->dev_addr[5], + netdev->irq); +} + +static void c2_set_rxbufsize(struct c2_port *c2_port) +{ + struct net_device *netdev = c2_port->netdev; + + if (netdev->mtu > RX_BUF_SIZE) + c2_port->rx_buf_size = + netdev->mtu + ETH_HLEN + sizeof(struct c2_rxp_hdr) + + NET_IP_ALIGN; + else + c2_port->rx_buf_size = sizeof(struct c2_rxp_hdr) + RX_BUF_SIZE; +} + +/* + * Allocate TX ring elements and chain them together. + * One-to-one association of adapter descriptors with ring elements. + */ +static int c2_tx_ring_alloc(struct c2_ring *tx_ring, void *vaddr, + dma_addr_t base, void __iomem * mmio_txp_ring) +{ + struct c2_tx_desc *tx_desc; + struct c2_txp_desc __iomem *txp_desc; + struct c2_element *elem; + int i; + + tx_ring->start = kmalloc(sizeof(*elem) * tx_ring->count, GFP_KERNEL); + if (!tx_ring->start) + return -ENOMEM; + + elem = tx_ring->start; + tx_desc = vaddr; + txp_desc = mmio_txp_ring; + for (i = 0; i < tx_ring->count; i++, elem++, tx_desc++, txp_desc++) { + tx_desc->len = 0; + tx_desc->status = 0; + + /* Set TXP_HTXD_UNINIT */ + __raw_writeq(cpu_to_be64(0x1122334455667788ULL), + (void __iomem *) txp_desc + C2_TXP_ADDR); + __raw_writew(0, (void __iomem *) txp_desc + C2_TXP_LEN); + __raw_writew(cpu_to_be16(TXP_HTXD_UNINIT), + (void __iomem *) txp_desc + C2_TXP_FLAGS); + + elem->skb = NULL; + elem->ht_desc = tx_desc; + elem->hw_desc = txp_desc; + + if (i == tx_ring->count - 1) { + elem->next = tx_ring->start; + tx_desc->next_offset = base; + } else { + elem->next = elem + 1; + tx_desc->next_offset = + base + (i + 1) * sizeof(*tx_desc); + } + } + + tx_ring->to_use = tx_ring->to_clean = tx_ring->start; + + return 0; +} + +/* + * Allocate RX ring elements and chain them together. + * One-to-one association of adapter descriptors with ring elements. + */ +static int c2_rx_ring_alloc(struct c2_ring *rx_ring, void *vaddr, + dma_addr_t base, void __iomem * mmio_rxp_ring) +{ + struct c2_rx_desc *rx_desc; + struct c2_rxp_desc __iomem *rxp_desc; + struct c2_element *elem; + int i; + + rx_ring->start = kmalloc(sizeof(*elem) * rx_ring->count, GFP_KERNEL); + if (!rx_ring->start) + return -ENOMEM; + + elem = rx_ring->start; + rx_desc = vaddr; + rxp_desc = mmio_rxp_ring; + for (i = 0; i < rx_ring->count; i++, elem++, rx_desc++, rxp_desc++) { + rx_desc->len = 0; + rx_desc->status = 0; + + /* Set RXP_HRXD_UNINIT */ + __raw_writew(cpu_to_be16(RXP_HRXD_OK), + (void __iomem *) rxp_desc + C2_RXP_STATUS); + __raw_writew(0, (void __iomem *) rxp_desc + C2_RXP_COUNT); + __raw_writew(0, (void __iomem *) rxp_desc + C2_RXP_LEN); + __raw_writeq(cpu_to_be64(0x99aabbccddeeffULL), + (void __iomem *) rxp_desc + C2_RXP_ADDR); + __raw_writew(cpu_to_be16(RXP_HRXD_UNINIT), + (void __iomem *) rxp_desc + C2_RXP_FLAGS); + + elem->skb = NULL; + elem->ht_desc = rx_desc; + elem->hw_desc = rxp_desc; + + if (i == rx_ring->count - 1) { + elem->next = rx_ring->start; + rx_desc->next_offset = base; + } else { + elem->next = elem + 1; + rx_desc->next_offset = + base + (i + 1) * sizeof(*rx_desc); + } + } + + rx_ring->to_use = rx_ring->to_clean = rx_ring->start; + + return 0; +} + +/* Setup buffer for receiving */ +static inline int c2_rx_alloc(struct c2_port *c2_port, struct c2_element *elem) +{ + struct c2_dev *c2dev = c2_port->c2dev; + struct c2_rx_desc *rx_desc = elem->ht_desc; + struct sk_buff *skb; + dma_addr_t mapaddr; + u32 maplen; + struct c2_rxp_hdr *rxp_hdr; + + skb = dev_alloc_skb(c2_port->rx_buf_size); + if (unlikely(!skb)) { + pr_debug("%s: out of memory for receive\n", + c2_port->netdev->name); + return -ENOMEM; + } + + /* Zero out the rxp hdr in the sk_buff */ + memset(skb->data, 0, sizeof(*rxp_hdr)); + + skb->dev = c2_port->netdev; + + maplen = c2_port->rx_buf_size; + mapaddr = + pci_map_single(c2dev->pcidev, skb->data, maplen, + PCI_DMA_FROMDEVICE); + + /* Set the sk_buff RXP_header to RXP_HRXD_READY */ + rxp_hdr = (struct c2_rxp_hdr *) skb->data; + rxp_hdr->flags = RXP_HRXD_READY; + + __raw_writew(0, elem->hw_desc + C2_RXP_STATUS); + __raw_writew(cpu_to_be16((u16) maplen - sizeof(*rxp_hdr)), + elem->hw_desc + C2_RXP_LEN); + __raw_writeq(cpu_to_be64(mapaddr), elem->hw_desc + C2_RXP_ADDR); + __raw_writew(cpu_to_be16(RXP_HRXD_READY), elem->hw_desc + C2_RXP_FLAGS); + + elem->skb = skb; + elem->mapaddr = mapaddr; + elem->maplen = maplen; + rx_desc->len = maplen; + + return 0; +} + +/* + * Allocate buffers for the Rx ring + * For receive: rx_ring.to_clean is next received frame + */ +static int c2_rx_fill(struct c2_port *c2_port) +{ + struct c2_ring *rx_ring = &c2_port->rx_ring; + struct c2_element *elem; + int ret = 0; + + elem = rx_ring->start; + do { + if (c2_rx_alloc(c2_port, elem)) { + ret = 1; + break; + } + } while ((elem = elem->next) != rx_ring->start); + + rx_ring->to_clean = rx_ring->start; + return ret; +} + +/* Free all buffers in RX ring, assumes receiver stopped */ +static void c2_rx_clean(struct c2_port *c2_port) +{ + struct c2_dev *c2dev = c2_port->c2dev; + struct c2_ring *rx_ring = &c2_port->rx_ring; + struct c2_element *elem; + struct c2_rx_desc *rx_desc; + + elem = rx_ring->start; + do { + rx_desc = elem->ht_desc; + rx_desc->len = 0; + + __raw_writew(0, elem->hw_desc + C2_RXP_STATUS); + __raw_writew(0, elem->hw_desc + C2_RXP_COUNT); + __raw_writew(0, elem->hw_desc + C2_RXP_LEN); + __raw_writeq(cpu_to_be64(0x99aabbccddeeffULL), + elem->hw_desc + C2_RXP_ADDR); + __raw_writew(cpu_to_be16(RXP_HRXD_UNINIT), + elem->hw_desc + C2_RXP_FLAGS); + + if (elem->skb) { + pci_unmap_single(c2dev->pcidev, elem->mapaddr, + elem->maplen, PCI_DMA_FROMDEVICE); + dev_kfree_skb(elem->skb); + elem->skb = NULL; + } + } while ((elem = elem->next) != rx_ring->start); +} + +static inline int c2_tx_free(struct c2_dev *c2dev, struct c2_element *elem) +{ + struct c2_tx_desc *tx_desc = elem->ht_desc; + + tx_desc->len = 0; + + pci_unmap_single(c2dev->pcidev, elem->mapaddr, elem->maplen, + PCI_DMA_TODEVICE); + + if (elem->skb) { + dev_kfree_skb_any(elem->skb); + elem->skb = NULL; + } + + return 0; +} + +/* Free all buffers in TX ring, assumes transmitter stopped */ +static void c2_tx_clean(struct c2_port *c2_port) +{ + struct c2_ring *tx_ring = &c2_port->tx_ring; + struct c2_element *elem; + struct c2_txp_desc txp_htxd; + int retry; + unsigned long flags; + + spin_lock_irqsave(&c2_port->tx_lock, flags); + + elem = tx_ring->start; + + do { + retry = 0; + do { + txp_htxd.flags = + readw(elem->hw_desc + C2_TXP_FLAGS); + + if (txp_htxd.flags == TXP_HTXD_READY) { + retry = 1; + __raw_writew(0, + elem->hw_desc + C2_TXP_LEN); + __raw_writeq(0, + elem->hw_desc + C2_TXP_ADDR); + __raw_writew(cpu_to_be16(TXP_HTXD_DONE), + elem->hw_desc + C2_TXP_FLAGS); + c2_port->netstats.tx_dropped++; + break; + } else { + __raw_writew(0, + elem->hw_desc + C2_TXP_LEN); + __raw_writeq(cpu_to_be64(0x1122334455667788ULL), + elem->hw_desc + C2_TXP_ADDR); + __raw_writew(cpu_to_be16(TXP_HTXD_UNINIT), + elem->hw_desc + C2_TXP_FLAGS); + } + + c2_tx_free(c2_port->c2dev, elem); + + } while ((elem = elem->next) != tx_ring->start); + } while (retry); + + c2_port->tx_avail = c2_port->tx_ring.count - 1; + c2_port->c2dev->cur_tx = tx_ring->to_use - tx_ring->start; + + if (c2_port->tx_avail > MAX_SKB_FRAGS + 1) + netif_wake_queue(c2_port->netdev); + + spin_unlock_irqrestore(&c2_port->tx_lock, flags); +} + +/* + * Process transmit descriptors marked 'DONE' by the firmware, + * freeing up their unneeded sk_buffs. + */ +static void c2_tx_interrupt(struct net_device *netdev) +{ + struct c2_port *c2_port = netdev_priv(netdev); + struct c2_dev *c2dev = c2_port->c2dev; + struct c2_ring *tx_ring = &c2_port->tx_ring; + struct c2_element *elem; + struct c2_txp_desc txp_htxd; + + spin_lock(&c2_port->tx_lock); + + for (elem = tx_ring->to_clean; elem != tx_ring->to_use; + elem = elem->next) { + txp_htxd.flags = + be16_to_cpu(readw(elem->hw_desc + C2_TXP_FLAGS)); + + if (txp_htxd.flags != TXP_HTXD_DONE) + break; + + if (netif_msg_tx_done(c2_port)) { + /* PCI reads are expensive in fast path */ + txp_htxd.len = + be16_to_cpu(readw(elem->hw_desc + C2_TXP_LEN)); + pr_debug("%s: tx done slot %3Zu status 0x%x len " + "%5u bytes\n", + netdev->name, elem - tx_ring->start, + txp_htxd.flags, txp_htxd.len); + } + + c2_tx_free(c2dev, elem); + ++(c2_port->tx_avail); + } + + tx_ring->to_clean = elem; + + if (netif_queue_stopped(netdev) + && c2_port->tx_avail > MAX_SKB_FRAGS + 1) + netif_wake_queue(netdev); + + spin_unlock(&c2_port->tx_lock); +} + +static void c2_rx_error(struct c2_port *c2_port, struct c2_element *elem) +{ + struct c2_rx_desc *rx_desc = elem->ht_desc; + struct c2_rxp_hdr *rxp_hdr = (struct c2_rxp_hdr *) elem->skb->data; + + if (rxp_hdr->status != RXP_HRXD_OK || + rxp_hdr->len > (rx_desc->len - sizeof(*rxp_hdr))) { + pr_debug("BAD RXP_HRXD\n"); + pr_debug(" rx_desc : %p\n", rx_desc); + pr_debug(" index : %Zu\n", + elem - c2_port->rx_ring.start); + pr_debug(" len : %u\n", rx_desc->len); + pr_debug(" rxp_hdr : %p [PA %p]\n", rxp_hdr, + (void *) __pa((unsigned long) rxp_hdr)); + pr_debug(" flags : 0x%x\n", rxp_hdr->flags); + pr_debug(" status: 0x%x\n", rxp_hdr->status); + pr_debug(" len : %u\n", rxp_hdr->len); + pr_debug(" rsvd : 0x%x\n", rxp_hdr->rsvd); + } + + /* Setup the skb for reuse since we're dropping this pkt */ + elem->skb->tail = elem->skb->data = elem->skb->head; + + /* Zero out the rxp hdr in the sk_buff */ + memset(elem->skb->data, 0, sizeof(*rxp_hdr)); + + /* Write the descriptor to the adapter's rx ring */ + __raw_writew(0, elem->hw_desc + C2_RXP_STATUS); + __raw_writew(0, elem->hw_desc + C2_RXP_COUNT); + __raw_writew(cpu_to_be16((u16) elem->maplen - sizeof(*rxp_hdr)), + elem->hw_desc + C2_RXP_LEN); + __raw_writeq(cpu_to_be64(elem->mapaddr), elem->hw_desc + C2_RXP_ADDR); + __raw_writew(cpu_to_be16(RXP_HRXD_READY), elem->hw_desc + C2_RXP_FLAGS); + + pr_debug("packet dropped\n"); + c2_port->netstats.rx_dropped++; +} + +static void c2_rx_interrupt(struct net_device *netdev) +{ + struct c2_port *c2_port = netdev_priv(netdev); + struct c2_dev *c2dev = c2_port->c2dev; + struct c2_ring *rx_ring = &c2_port->rx_ring; + struct c2_element *elem; + struct c2_rx_desc *rx_desc; + struct c2_rxp_hdr *rxp_hdr; + struct sk_buff *skb; + dma_addr_t mapaddr; + u32 maplen, buflen; + unsigned long flags; + + spin_lock_irqsave(&c2dev->lock, flags); + + /* Begin where we left off */ + rx_ring->to_clean = rx_ring->start + c2dev->cur_rx; + + for (elem = rx_ring->to_clean; elem->next != rx_ring->to_clean; + elem = elem->next) { + rx_desc = elem->ht_desc; + mapaddr = elem->mapaddr; + maplen = elem->maplen; + skb = elem->skb; + rxp_hdr = (struct c2_rxp_hdr *) skb->data; + + if (rxp_hdr->flags != RXP_HRXD_DONE) + break; + buflen = rxp_hdr->len; + + /* Sanity check the RXP header */ + if (rxp_hdr->status != RXP_HRXD_OK || + buflen > (rx_desc->len - sizeof(*rxp_hdr))) { + c2_rx_error(c2_port, elem); + continue; + } + + /* + * Allocate and map a new skb for replenishing the host + * RX desc + */ + if (c2_rx_alloc(c2_port, elem)) { + c2_rx_error(c2_port, elem); + continue; + } + + /* Unmap the old skb */ + pci_unmap_single(c2dev->pcidev, mapaddr, maplen, + PCI_DMA_FROMDEVICE); + + prefetch(skb->data); + + /* + * Skip past the leading 8 bytes comprising of the + * "struct c2_rxp_hdr", prepended by the adapter + * to the usual Ethernet header ("struct ethhdr"), + * to the start of the raw Ethernet packet. + * + * Fix up the various fields in the sk_buff before + * passing it up to netif_rx(). The transfer size + * (in bytes) specified by the adapter len field of + * the "struct rxp_hdr_t" does NOT include the + * "sizeof(struct c2_rxp_hdr)". + */ + skb->data += sizeof(*rxp_hdr); + skb->tail = skb->data + buflen; + skb->len = buflen; + skb->dev = netdev; + skb->protocol = eth_type_trans(skb, netdev); + + netif_rx(skb); + + netdev->last_rx = jiffies; + c2_port->netstats.rx_packets++; + c2_port->netstats.rx_bytes += buflen; + } + + /* Save where we left off */ + rx_ring->to_clean = elem; + c2dev->cur_rx = elem - rx_ring->start; + C2_SET_CUR_RX(c2dev, c2dev->cur_rx); + + spin_unlock_irqrestore(&c2dev->lock, flags); +} + +/* + * Handle netisr0 TX & RX interrupts. + */ +static irqreturn_t c2_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + unsigned int netisr0, dmaisr; + int handled = 0; + struct c2_dev *c2dev = (struct c2_dev *) dev_id; + + /* Process CCILNET interrupts */ + netisr0 = readl(c2dev->regs + C2_NISR0); + if (netisr0) { + + /* + * There is an issue with the firmware that always + * provides the status of RX for both TX & RX + * interrupts. So process both queues here. + */ + c2_rx_interrupt(c2dev->netdev); + c2_tx_interrupt(c2dev->netdev); + + /* Clear the interrupt */ + writel(netisr0, c2dev->regs + C2_NISR0); + handled++; + } + + /* Process RNIC interrupts */ + dmaisr = readl(c2dev->regs + C2_DISR); + if (dmaisr) { + writel(dmaisr, c2dev->regs + C2_DISR); + c2_rnic_interrupt(c2dev); + handled++; + } + + if (handled) { + return IRQ_HANDLED; + } else { + return IRQ_NONE; + } +} + +static int c2_up(struct net_device *netdev) +{ + struct c2_port *c2_port = netdev_priv(netdev); + struct c2_dev *c2dev = c2_port->c2dev; + struct c2_element *elem; + struct c2_rxp_hdr *rxp_hdr; + struct in_device *in_dev; + size_t rx_size, tx_size; + int ret, i; + unsigned int netimr0; + + if (netif_msg_ifup(c2_port)) + pr_debug("%s: enabling interface\n", netdev->name); + + /* Set the Rx buffer size based on MTU */ + c2_set_rxbufsize(c2_port); + + /* Allocate DMA'able memory for Tx/Rx host descriptor rings */ + rx_size = c2_port->rx_ring.count * sizeof(struct c2_rx_desc); + tx_size = c2_port->tx_ring.count * sizeof(struct c2_tx_desc); + + c2_port->mem_size = tx_size + rx_size; + c2_port->mem = pci_alloc_consistent(c2dev->pcidev, c2_port->mem_size, + &c2_port->dma); + if (c2_port->mem == NULL) { + pr_debug("Unable to allocate memory for " + "host descriptor rings\n"); + return -ENOMEM; + } + + memset(c2_port->mem, 0, c2_port->mem_size); + + /* Create the Rx host descriptor ring */ + if ((ret = + c2_rx_ring_alloc(&c2_port->rx_ring, c2_port->mem, c2_port->dma, + c2dev->mmio_rxp_ring))) { + pr_debug("Unable to create RX ring\n"); + goto bail0; + } + + /* Allocate Rx buffers for the host descriptor ring */ + if (c2_rx_fill(c2_port)) { + pr_debug("Unable to fill RX ring\n"); + goto bail1; + } + + /* Create the Tx host descriptor ring */ + if ((ret = c2_tx_ring_alloc(&c2_port->tx_ring, c2_port->mem + rx_size, + c2_port->dma + rx_size, + c2dev->mmio_txp_ring))) { + pr_debug("Unable to create TX ring\n"); + goto bail1; + } + + /* Set the TX pointer to where we left off */ + c2_port->tx_avail = c2_port->tx_ring.count - 1; + c2_port->tx_ring.to_use = c2_port->tx_ring.to_clean = + c2_port->tx_ring.start + c2dev->cur_tx; + + /* missing: Initialize MAC */ + + BUG_ON(c2_port->tx_ring.to_use != c2_port->tx_ring.to_clean); + + /* Reset the adapter, ensures the driver is in sync with the RXP */ + c2_reset(c2_port); + + /* Reset the READY bit in the sk_buff RXP headers & adapter HRXDQ */ + for (i = 0, elem = c2_port->rx_ring.start; i < c2_port->rx_ring.count; + i++, elem++) { + rxp_hdr = (struct c2_rxp_hdr *) elem->skb->data; + rxp_hdr->flags = 0; + __raw_writew(cpu_to_be16(RXP_HRXD_READY), + elem->hw_desc + C2_RXP_FLAGS); + } + + /* Enable network packets */ + netif_start_queue(netdev); + + /* Enable IRQ */ + writel(0, c2dev->regs + C2_IDIS); + netimr0 = readl(c2dev->regs + C2_NIMR0); + netimr0 &= ~(C2_PCI_HTX_INT | C2_PCI_HRX_INT); + writel(netimr0, c2dev->regs + C2_NIMR0); + + /* Tell the stack to ignore arp requests for ipaddrs bound to + * other interfaces. This is needed to prevent the host stack + * from responding to arp requests to the ipaddr bound on the + * rdma interface. + */ + in_dev = in_dev_get(netdev); + in_dev->cnf.arp_ignore = 1; + in_dev_put(in_dev); + + return 0; + + bail1: + c2_rx_clean(c2_port); + kfree(c2_port->rx_ring.start); + + bail0: + pci_free_consistent(c2dev->pcidev, c2_port->mem_size, c2_port->mem, + c2_port->dma); + + return ret; +} + +static int c2_down(struct net_device *netdev) +{ + struct c2_port *c2_port = netdev_priv(netdev); + struct c2_dev *c2dev = c2_port->c2dev; + + if (netif_msg_ifdown(c2_port)) + pr_debug("%s: disabling interface\n", + netdev->name); + + /* Wait for all the queued packets to get sent */ + c2_tx_interrupt(netdev); + + /* Disable network packets */ + netif_stop_queue(netdev); + + /* Disable IRQs by clearing the interrupt mask */ + writel(1, c2dev->regs + C2_IDIS); + writel(0, c2dev->regs + C2_NIMR0); + + /* missing: Stop transmitter */ + + /* missing: Stop receiver */ + + /* Reset the adapter, ensures the driver is in sync with the RXP */ + c2_reset(c2_port); + + /* missing: Turn off LEDs here */ + + /* Free all buffers in the host descriptor rings */ + c2_tx_clean(c2_port); + c2_rx_clean(c2_port); + + /* Free the host descriptor rings */ + kfree(c2_port->rx_ring.start); + kfree(c2_port->tx_ring.start); + pci_free_consistent(c2dev->pcidev, c2_port->mem_size, c2_port->mem, + c2_port->dma); + + return 0; +} + +static void c2_reset(struct c2_port *c2_port) +{ + struct c2_dev *c2dev = c2_port->c2dev; + unsigned int cur_rx = c2dev->cur_rx; + + /* Tell the hardware to quiesce */ + C2_SET_CUR_RX(c2dev, cur_rx | C2_PCI_HRX_QUI); + + /* + * The hardware will reset the C2_PCI_HRX_QUI bit once + * the RXP is quiesced. Wait 2 seconds for this. + */ + ssleep(2); + + cur_rx = C2_GET_CUR_RX(c2dev); + + if (cur_rx & C2_PCI_HRX_QUI) + pr_debug("c2_reset: failed to quiesce the hardware!\n"); + + cur_rx &= ~C2_PCI_HRX_QUI; + + c2dev->cur_rx = cur_rx; + + pr_debug("Current RX: %u\n", c2dev->cur_rx); +} + +static int c2_xmit_frame(struct sk_buff *skb, struct net_device *netdev) +{ + struct c2_port *c2_port = netdev_priv(netdev); + struct c2_dev *c2dev = c2_port->c2dev; + struct c2_ring *tx_ring = &c2_port->tx_ring; + struct c2_element *elem; + dma_addr_t mapaddr; + u32 maplen; + unsigned long flags; + unsigned int i; + + spin_lock_irqsave(&c2_port->tx_lock, flags); + + if (unlikely(c2_port->tx_avail < (skb_shinfo(skb)->nr_frags + 1))) { + netif_stop_queue(netdev); + spin_unlock_irqrestore(&c2_port->tx_lock, flags); + + pr_debug("%s: Tx ring full when queue awake!\n", + netdev->name); + return NETDEV_TX_BUSY; + } + + maplen = skb_headlen(skb); + mapaddr = + pci_map_single(c2dev->pcidev, skb->data, maplen, PCI_DMA_TODEVICE); + + elem = tx_ring->to_use; + elem->skb = skb; + elem->mapaddr = mapaddr; + elem->maplen = maplen; + + /* Tell HW to xmit */ + __raw_writeq(cpu_to_be64(mapaddr), elem->hw_desc + C2_TXP_ADDR); + __raw_writew(cpu_to_be16(maplen), elem->hw_desc + C2_TXP_LEN); + __raw_writew(cpu_to_be16(TXP_HTXD_READY), elem->hw_desc + C2_TXP_FLAGS); + + c2_port->netstats.tx_packets++; + c2_port->netstats.tx_bytes += maplen; + + /* Loop thru additional data fragments and queue them */ + if (skb_shinfo(skb)->nr_frags) { + for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { + skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; + maplen = frag->size; + mapaddr = + pci_map_page(c2dev->pcidev, frag->page, + frag->page_offset, maplen, + PCI_DMA_TODEVICE); + + elem = elem->next; + elem->skb = NULL; + elem->mapaddr = mapaddr; + elem->maplen = maplen; + + /* Tell HW to xmit */ + __raw_writeq(cpu_to_be64(mapaddr), + elem->hw_desc + C2_TXP_ADDR); + __raw_writew(cpu_to_be16(maplen), + elem->hw_desc + C2_TXP_LEN); + __raw_writew(cpu_to_be16(TXP_HTXD_READY), + elem->hw_desc + C2_TXP_FLAGS); + + c2_port->netstats.tx_packets++; + c2_port->netstats.tx_bytes += maplen; + } + } + + tx_ring->to_use = elem->next; + c2_port->tx_avail -= (skb_shinfo(skb)->nr_frags + 1); + + if (c2_port->tx_avail <= MAX_SKB_FRAGS + 1) { + netif_stop_queue(netdev); + if (netif_msg_tx_queued(c2_port)) + pr_debug("%s: transmit queue full\n", + netdev->name); + } + + spin_unlock_irqrestore(&c2_port->tx_lock, flags); + + netdev->trans_start = jiffies; + + return NETDEV_TX_OK; +} + +static struct net_device_stats *c2_get_stats(struct net_device *netdev) +{ + struct c2_port *c2_port = netdev_priv(netdev); + + return &c2_port->netstats; +} + +static void c2_tx_timeout(struct net_device *netdev) +{ + struct c2_port *c2_port = netdev_priv(netdev); + + if (netif_msg_timer(c2_port)) + pr_debug("%s: tx timeout\n", netdev->name); + + c2_tx_clean(c2_port); +} + +static int c2_change_mtu(struct net_device *netdev, int new_mtu) +{ + int ret = 0; + + if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU) + return -EINVAL; + + netdev->mtu = new_mtu; + + if (netif_running(netdev)) { + c2_down(netdev); + + c2_up(netdev); + } + + return ret; +} + +/* Initialize network device */ +static struct net_device *c2_devinit(struct c2_dev *c2dev, + void __iomem * mmio_addr) +{ + struct c2_port *c2_port = NULL; + struct net_device *netdev = alloc_etherdev(sizeof(*c2_port)); + + if (!netdev) { + pr_debug("c2_port etherdev alloc failed"); + return NULL; + } + + SET_MODULE_OWNER(netdev); + SET_NETDEV_DEV(netdev, &c2dev->pcidev->dev); + + netdev->open = c2_up; + netdev->stop = c2_down; + netdev->hard_start_xmit = c2_xmit_frame; + netdev->get_stats = c2_get_stats; + netdev->tx_timeout = c2_tx_timeout; + netdev->change_mtu = c2_change_mtu; + netdev->watchdog_timeo = C2_TX_TIMEOUT; + netdev->irq = c2dev->pcidev->irq; + + c2_port = netdev_priv(netdev); + c2_port->netdev = netdev; + c2_port->c2dev = c2dev; + c2_port->msg_enable = netif_msg_init(debug, default_msg); + c2_port->tx_ring.count = C2_NUM_TX_DESC; + c2_port->rx_ring.count = C2_NUM_RX_DESC; + + spin_lock_init(&c2_port->tx_lock); + + /* Copy our 48-bit ethernet hardware address */ + memcpy_fromio(netdev->dev_addr, mmio_addr + C2_REGS_ENADDR, 6); + + /* Validate the MAC address */ + if (!is_valid_ether_addr(netdev->dev_addr)) { + pr_debug("Invalid MAC Address\n"); + c2_print_macaddr(netdev); + free_netdev(netdev); + return NULL; + } + + c2dev->netdev = netdev; + + return netdev; +} + +static int __devinit c2_probe(struct pci_dev *pcidev, + const struct pci_device_id *ent) +{ + int ret = 0, i; + unsigned long reg0_start, reg0_flags, reg0_len; + unsigned long reg2_start, reg2_flags, reg2_len; + unsigned long reg4_start, reg4_flags, reg4_len; + unsigned kva_map_size; + struct net_device *netdev = NULL; + struct c2_dev *c2dev = NULL; + void __iomem *mmio_regs = NULL; + + printk(KERN_INFO PFX "AMSO1100 Gigabit Ethernet driver v%s loaded\n", + DRV_VERSION); + + /* Enable PCI device */ + ret = pci_enable_device(pcidev); + if (ret) { + printk(KERN_ERR PFX "%s: Unable to enable PCI device\n", + pci_name(pcidev)); + goto bail0; + } + + reg0_start = pci_resource_start(pcidev, BAR_0); + reg0_len = pci_resource_len(pcidev, BAR_0); + reg0_flags = pci_resource_flags(pcidev, BAR_0); + + reg2_start = pci_resource_start(pcidev, BAR_2); + reg2_len = pci_resource_len(pcidev, BAR_2); + reg2_flags = pci_resource_flags(pcidev, BAR_2); + + reg4_start = pci_resource_start(pcidev, BAR_4); + reg4_len = pci_resource_len(pcidev, BAR_4); + reg4_flags = pci_resource_flags(pcidev, BAR_4); + + pr_debug("BAR0 size = 0x%lX bytes\n", reg0_len); + pr_debug("BAR2 size = 0x%lX bytes\n", reg2_len); + pr_debug("BAR4 size = 0x%lX bytes\n", reg4_len); + + /* Make sure PCI base addr are MMIO */ + if (!(reg0_flags & IORESOURCE_MEM) || + !(reg2_flags & IORESOURCE_MEM) || !(reg4_flags & IORESOURCE_MEM)) { + printk(KERN_ERR PFX "PCI regions not an MMIO resource\n"); + ret = -ENODEV; + goto bail1; + } + + /* Check for weird/broken PCI region reporting */ + if ((reg0_len < C2_REG0_SIZE) || + (reg2_len < C2_REG2_SIZE) || (reg4_len < C2_REG4_SIZE)) { + printk(KERN_ERR PFX "Invalid PCI region sizes\n"); + ret = -ENODEV; + goto bail1; + } + + /* Reserve PCI I/O and memory resources */ + ret = pci_request_regions(pcidev, DRV_NAME); + if (ret) { + printk(KERN_ERR PFX "%s: Unable to request regions\n", + pci_name(pcidev)); + goto bail1; + } + + if ((sizeof(dma_addr_t) > 4)) { + ret = pci_set_dma_mask(pcidev, DMA_64BIT_MASK); + if (ret < 0) { + printk(KERN_ERR PFX "64b DMA configuration failed\n"); + goto bail2; + } + } else { + ret = pci_set_dma_mask(pcidev, DMA_32BIT_MASK); + if (ret < 0) { + printk(KERN_ERR PFX "32b DMA configuration failed\n"); + goto bail2; + } + } + + /* Enables bus-mastering on the device */ + pci_set_master(pcidev); + + /* Remap the adapter PCI registers in BAR4 */ + mmio_regs = ioremap_nocache(reg4_start + C2_PCI_REGS_OFFSET, + sizeof(struct c2_adapter_pci_regs)); + if (mmio_regs == 0UL) { + printk(KERN_ERR PFX + "Unable to remap adapter PCI registers in BAR4\n"); + ret = -EIO; + goto bail2; + } + + /* Validate PCI regs magic */ + for (i = 0; i < sizeof(c2_magic); i++) { + if (c2_magic[i] != readb(mmio_regs + C2_REGS_MAGIC + i)) { + printk(KERN_ERR PFX "Downlevel Firmware boot loader " + "[%d/%Zd: got 0x%x, exp 0x%x]. Use the cc_flash " + "utility to update your boot loader\n", + i + 1, sizeof(c2_magic), + readb(mmio_regs + C2_REGS_MAGIC + i), + c2_magic[i]); + printk(KERN_ERR PFX "Adapter not claimed\n"); + iounmap(mmio_regs); + ret = -EIO; + goto bail2; + } + } + + /* Validate the adapter version */ + if (be32_to_cpu(readl(mmio_regs + C2_REGS_VERS)) != C2_VERSION) { + printk(KERN_ERR PFX "Version mismatch " + "[fw=%u, c2=%u], Adapter not claimed\n", + be32_to_cpu(readl(mmio_regs + C2_REGS_VERS)), + C2_VERSION); + ret = -EINVAL; + iounmap(mmio_regs); + goto bail2; + } + + /* Validate the adapter IVN */ + if (be32_to_cpu(readl(mmio_regs + C2_REGS_IVN)) != C2_IVN) { + printk(KERN_ERR PFX "Downlevel FIrmware level. You should be using " + "the OpenIB device support kit. " + "[fw=0x%x, c2=0x%x], Adapter not claimed\n", + be32_to_cpu(readl(mmio_regs + C2_REGS_IVN)), + C2_IVN); + ret = -EINVAL; + iounmap(mmio_regs); + goto bail2; + } + + /* Allocate hardware structure */ + c2dev = (struct c2_dev *) ib_alloc_device(sizeof(*c2dev)); + if (!c2dev) { + printk(KERN_ERR PFX "%s: Unable to alloc hardware struct\n", + pci_name(pcidev)); + ret = -ENOMEM; + iounmap(mmio_regs); + goto bail2; + } + + memset(c2dev, 0, sizeof(*c2dev)); + spin_lock_init(&c2dev->lock); + c2dev->pcidev = pcidev; + c2dev->cur_tx = 0; + + /* Get the last RX index */ + c2dev->cur_rx = + (be32_to_cpu(readl(mmio_regs + C2_REGS_HRX_CUR)) - + 0xffffc000) / sizeof(struct c2_rxp_desc); + + /* Request an interrupt line for the driver */ + ret = request_irq(pcidev->irq, c2_interrupt, SA_SHIRQ, DRV_NAME, c2dev); + if (ret) { + printk(KERN_ERR PFX "%s: requested IRQ %u is busy\n", + pci_name(pcidev), pcidev->irq); + iounmap(mmio_regs); + goto bail3; + } + + /* Set driver specific data */ + pci_set_drvdata(pcidev, c2dev); + + /* Initialize network device */ + if ((netdev = c2_devinit(c2dev, mmio_regs)) == NULL) { + iounmap(mmio_regs); + goto bail4; + } + + /* Save off the actual size prior to unmapping mmio_regs */ + kva_map_size = be32_to_cpu(readl(mmio_regs + C2_REGS_PCI_WINSIZE)); + + /* Unmap the adapter PCI registers in BAR4 */ + iounmap(mmio_regs); + + /* Register network device */ + ret = register_netdev(netdev); + if (ret) { + printk(KERN_ERR PFX "Unable to register netdev, ret = %d\n", + ret); + goto bail5; + } + + /* Disable network packets */ + netif_stop_queue(netdev); + + /* Remap the adapter HRXDQ PA space to kernel VA space */ + c2dev->mmio_rxp_ring = ioremap_nocache(reg4_start + C2_RXP_HRXDQ_OFFSET, + C2_RXP_HRXDQ_SIZE); + if (c2dev->mmio_rxp_ring == 0UL) { + printk(KERN_ERR PFX "Unable to remap MMIO HRXDQ region\n"); + ret = -EIO; + goto bail6; + } + + /* Remap the adapter HTXDQ PA space to kernel VA space */ + c2dev->mmio_txp_ring = ioremap_nocache(reg4_start + C2_TXP_HTXDQ_OFFSET, + C2_TXP_HTXDQ_SIZE); + if (c2dev->mmio_txp_ring == 0UL) { + printk(KERN_ERR PFX "Unable to remap MMIO HTXDQ region\n"); + ret = -EIO; + goto bail7; + } + + /* Save off the current RX index in the last 4 bytes of the TXP Ring */ + C2_SET_CUR_RX(c2dev, c2dev->cur_rx); + + /* Remap the PCI registers in adapter BAR0 to kernel VA space */ + c2dev->regs = ioremap_nocache(reg0_start, reg0_len); + if (c2dev->regs == 0UL) { + printk(KERN_ERR PFX "Unable to remap BAR0\n"); + ret = -EIO; + goto bail8; + } + + /* Remap the PCI registers in adapter BAR4 to kernel VA space */ + c2dev->pa = reg4_start + C2_PCI_REGS_OFFSET; + c2dev->kva = ioremap_nocache(reg4_start + C2_PCI_REGS_OFFSET, + kva_map_size); + if (c2dev->kva == 0UL) { + printk(KERN_ERR PFX "Unable to remap BAR4\n"); + ret = -EIO; + goto bail9; + } + + /* Print out the MAC address */ + c2_print_macaddr(netdev); + + ret = c2_rnic_init(c2dev); + if (ret) { + printk(KERN_ERR PFX "c2_rnic_init failed: %d\n", ret); + goto bail10; + } + + c2_register_device(c2dev); + + return 0; + + bail10: + iounmap(c2dev->kva); + + bail9: + iounmap(c2dev->regs); + + bail8: + iounmap(c2dev->mmio_txp_ring); + + bail7: + iounmap(c2dev->mmio_rxp_ring); + + bail6: + unregister_netdev(netdev); + + bail5: + free_netdev(netdev); + + bail4: + free_irq(pcidev->irq, c2dev); + + bail3: + ib_dealloc_device(&c2dev->ibdev); + + bail2: + pci_release_regions(pcidev); + + bail1: + pci_disable_device(pcidev); + + bail0: + return ret; +} + +static void __devexit c2_remove(struct pci_dev *pcidev) +{ + struct c2_dev *c2dev = pci_get_drvdata(pcidev); + struct net_device *netdev = c2dev->netdev; + + /* Unregister with OpenIB */ + c2_unregister_device(c2dev); + + /* Clean up the RNIC resources */ + c2_rnic_term(c2dev); + + /* Remove network device from the kernel */ + unregister_netdev(netdev); + + /* Free network device */ + free_netdev(netdev); + + /* Free the interrupt line */ + free_irq(pcidev->irq, c2dev); + + /* missing: Turn LEDs off here */ + + /* Unmap adapter PA space */ + iounmap(c2dev->kva); + iounmap(c2dev->regs); + iounmap(c2dev->mmio_txp_ring); + iounmap(c2dev->mmio_rxp_ring); + + /* Free the hardware structure */ + ib_dealloc_device(&c2dev->ibdev); + + /* Release reserved PCI I/O and memory resources */ + pci_release_regions(pcidev); + + /* Disable PCI device */ + pci_disable_device(pcidev); + + /* Clear driver specific data */ + pci_set_drvdata(pcidev, NULL); +} + +static struct pci_driver c2_pci_driver = { + .name = DRV_NAME, + .id_table = c2_pci_table, + .probe = c2_probe, + .remove = __devexit_p(c2_remove), +}; + +static int __init c2_init_module(void) +{ + return pci_module_init(&c2_pci_driver); +} + +static void __exit c2_exit_module(void) +{ + pci_unregister_driver(&c2_pci_driver); +} + +module_init(c2_init_module); +module_exit(c2_exit_module); diff --git a/drivers/infiniband/hw/amso1100/c2.h b/drivers/infiniband/hw/amso1100/c2.h new file mode 100644 index 00000000000..1b17dcdd050 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2.h @@ -0,0 +1,551 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef __C2_H +#define __C2_H + +#include +#include +#include +#include +#include +#include +#include + +#include "c2_provider.h" +#include "c2_mq.h" +#include "c2_status.h" + +#define DRV_NAME "c2" +#define DRV_VERSION "1.1" +#define PFX DRV_NAME ": " + +#define BAR_0 0 +#define BAR_2 2 +#define BAR_4 4 + +#define RX_BUF_SIZE (1536 + 8) +#define ETH_JUMBO_MTU 9000 +#define C2_MAGIC "CEPHEUS" +#define C2_VERSION 4 +#define C2_IVN (18 & 0x7fffffff) + +#define C2_REG0_SIZE (16 * 1024) +#define C2_REG2_SIZE (2 * 1024 * 1024) +#define C2_REG4_SIZE (256 * 1024 * 1024) +#define C2_NUM_TX_DESC 341 +#define C2_NUM_RX_DESC 256 +#define C2_PCI_REGS_OFFSET (0x10000) +#define C2_RXP_HRXDQ_OFFSET (((C2_REG4_SIZE)/2)) +#define C2_RXP_HRXDQ_SIZE (4096) +#define C2_TXP_HTXDQ_OFFSET (((C2_REG4_SIZE)/2) + C2_RXP_HRXDQ_SIZE) +#define C2_TXP_HTXDQ_SIZE (4096) +#define C2_TX_TIMEOUT (6*HZ) + +/* CEPHEUS */ +static const u8 c2_magic[] = { + 0x43, 0x45, 0x50, 0x48, 0x45, 0x55, 0x53 +}; + +enum adapter_pci_regs { + C2_REGS_MAGIC = 0x0000, + C2_REGS_VERS = 0x0008, + C2_REGS_IVN = 0x000C, + C2_REGS_PCI_WINSIZE = 0x0010, + C2_REGS_Q0_QSIZE = 0x0014, + C2_REGS_Q0_MSGSIZE = 0x0018, + C2_REGS_Q0_POOLSTART = 0x001C, + C2_REGS_Q0_SHARED = 0x0020, + C2_REGS_Q1_QSIZE = 0x0024, + C2_REGS_Q1_MSGSIZE = 0x0028, + C2_REGS_Q1_SHARED = 0x0030, + C2_REGS_Q2_QSIZE = 0x0034, + C2_REGS_Q2_MSGSIZE = 0x0038, + C2_REGS_Q2_SHARED = 0x0040, + C2_REGS_ENADDR = 0x004C, + C2_REGS_RDMA_ENADDR = 0x0054, + C2_REGS_HRX_CUR = 0x006C, +}; + +struct c2_adapter_pci_regs { + char reg_magic[8]; + u32 version; + u32 ivn; + u32 pci_window_size; + u32 q0_q_size; + u32 q0_msg_size; + u32 q0_pool_start; + u32 q0_shared; + u32 q1_q_size; + u32 q1_msg_size; + u32 q1_pool_start; + u32 q1_shared; + u32 q2_q_size; + u32 q2_msg_size; + u32 q2_pool_start; + u32 q2_shared; + u32 log_start; + u32 log_size; + u8 host_enaddr[8]; + u8 rdma_enaddr[8]; + u32 crash_entry; + u32 crash_ready[2]; + u32 fw_txd_cur; + u32 fw_hrxd_cur; + u32 fw_rxd_cur; +}; + +enum pci_regs { + C2_HISR = 0x0000, + C2_DISR = 0x0004, + C2_HIMR = 0x0008, + C2_DIMR = 0x000C, + C2_NISR0 = 0x0010, + C2_NISR1 = 0x0014, + C2_NIMR0 = 0x0018, + C2_NIMR1 = 0x001C, + C2_IDIS = 0x0020, +}; + +enum { + C2_PCI_HRX_INT = 1 << 8, + C2_PCI_HTX_INT = 1 << 17, + C2_PCI_HRX_QUI = 1 << 31, +}; + +/* + * Cepheus registers in BAR0. + */ +struct c2_pci_regs { + u32 hostisr; + u32 dmaisr; + u32 hostimr; + u32 dmaimr; + u32 netisr0; + u32 netisr1; + u32 netimr0; + u32 netimr1; + u32 int_disable; +}; + +/* TXP flags */ +enum c2_txp_flags { + TXP_HTXD_DONE = 0, + TXP_HTXD_READY = 1 << 0, + TXP_HTXD_UNINIT = 1 << 1, +}; + +/* RXP flags */ +enum c2_rxp_flags { + RXP_HRXD_UNINIT = 0, + RXP_HRXD_READY = 1 << 0, + RXP_HRXD_DONE = 1 << 1, +}; + +/* RXP status */ +enum c2_rxp_status { + RXP_HRXD_ZERO = 0, + RXP_HRXD_OK = 1 << 0, + RXP_HRXD_BUF_OV = 1 << 1, +}; + +/* TXP descriptor fields */ +enum txp_desc { + C2_TXP_FLAGS = 0x0000, + C2_TXP_LEN = 0x0002, + C2_TXP_ADDR = 0x0004, +}; + +/* RXP descriptor fields */ +enum rxp_desc { + C2_RXP_FLAGS = 0x0000, + C2_RXP_STATUS = 0x0002, + C2_RXP_COUNT = 0x0004, + C2_RXP_LEN = 0x0006, + C2_RXP_ADDR = 0x0008, +}; + +struct c2_txp_desc { + u16 flags; + u16 len; + u64 addr; +} __attribute__ ((packed)); + +struct c2_rxp_desc { + u16 flags; + u16 status; + u16 count; + u16 len; + u64 addr; +} __attribute__ ((packed)); + +struct c2_rxp_hdr { + u16 flags; + u16 status; + u16 len; + u16 rsvd; +} __attribute__ ((packed)); + +struct c2_tx_desc { + u32 len; + u32 status; + dma_addr_t next_offset; +}; + +struct c2_rx_desc { + u32 len; + u32 status; + dma_addr_t next_offset; +}; + +struct c2_alloc { + u32 last; + u32 max; + spinlock_t lock; + unsigned long *table; +}; + +struct c2_array { + struct { + void **page; + int used; + } *page_list; +}; + +/* + * The MQ shared pointer pool is organized as a linked list of + * chunks. Each chunk contains a linked list of free shared pointers + * that can be allocated to a given user mode client. + * + */ +struct sp_chunk { + struct sp_chunk *next; + dma_addr_t dma_addr; + DECLARE_PCI_UNMAP_ADDR(mapping); + u16 head; + u16 shared_ptr[0]; +}; + +struct c2_pd_table { + u32 last; + u32 max; + spinlock_t lock; + unsigned long *table; +}; + +struct c2_qp_table { + struct idr idr; + spinlock_t lock; + int last; +}; + +struct c2_element { + struct c2_element *next; + void *ht_desc; /* host descriptor */ + void __iomem *hw_desc; /* hardware descriptor */ + struct sk_buff *skb; + dma_addr_t mapaddr; + u32 maplen; +}; + +struct c2_ring { + struct c2_element *to_clean; + struct c2_element *to_use; + struct c2_element *start; + unsigned long count; +}; + +struct c2_dev { + struct ib_device ibdev; + void __iomem *regs; + void __iomem *mmio_txp_ring; /* remapped adapter memory for hw rings */ + void __iomem *mmio_rxp_ring; + spinlock_t lock; + struct pci_dev *pcidev; + struct net_device *netdev; + struct net_device *pseudo_netdev; + unsigned int cur_tx; + unsigned int cur_rx; + u32 adapter_handle; + int device_cap_flags; + void __iomem *kva; /* KVA device memory */ + unsigned long pa; /* PA device memory */ + void **qptr_array; + + kmem_cache_t *host_msg_cache; + + struct list_head cca_link; /* adapter list */ + struct list_head eh_wakeup_list; /* event wakeup list */ + wait_queue_head_t req_vq_wo; + + /* Cached RNIC properties */ + struct ib_device_attr props; + + struct c2_pd_table pd_table; + struct c2_qp_table qp_table; + int ports; /* num of GigE ports */ + int devnum; + spinlock_t vqlock; /* sync vbs req MQ */ + + /* Verbs Queues */ + struct c2_mq req_vq; /* Verbs Request MQ */ + struct c2_mq rep_vq; /* Verbs Reply MQ */ + struct c2_mq aeq; /* Async Events MQ */ + + /* Kernel client MQs */ + struct sp_chunk *kern_mqsp_pool; + + /* Device updates these values when posting messages to a host + * target queue */ + u16 req_vq_shared; + u16 rep_vq_shared; + u16 aeq_shared; + u16 irq_claimed; + + /* + * Shared host target pages for user-accessible MQs. + */ + int hthead; /* index of first free entry */ + void *htpages; /* kernel vaddr */ + int htlen; /* length of htpages memory */ + void *htuva; /* user mapped vaddr */ + spinlock_t htlock; /* serialize allocation */ + + u64 adapter_hint_uva; /* access to the activity FIFO */ + + // spinlock_t aeq_lock; + // spinlock_t rnic_lock; + + u16 *hint_count; + dma_addr_t hint_count_dma; + u16 hints_read; + + int init; /* TRUE if it's ready */ + char ae_cache_name[16]; + char vq_cache_name[16]; +}; + +struct c2_port { + u32 msg_enable; + struct c2_dev *c2dev; + struct net_device *netdev; + + spinlock_t tx_lock; + u32 tx_avail; + struct c2_ring tx_ring; + struct c2_ring rx_ring; + + void *mem; /* PCI memory for host rings */ + dma_addr_t dma; + unsigned long mem_size; + + u32 rx_buf_size; + + struct net_device_stats netstats; +}; + +/* + * Activity FIFO registers in BAR0. + */ +#define PCI_BAR0_HOST_HINT 0x100 +#define PCI_BAR0_ADAPTER_HINT 0x2000 + +/* + * Ammasso PCI vendor id and Cepheus PCI device id. + */ +#define CQ_ARMED 0x01 +#define CQ_WAIT_FOR_DMA 0x80 + +/* + * The format of a hint is as follows: + * Lower 16 bits are the count of hints for the queue. + * Next 15 bits are the qp_index + * Upper most bit depends on who reads it: + * If read by producer, then it means Full (1) or Not-Full (0) + * If read by consumer, then it means Empty (1) or Not-Empty (0) + */ +#define C2_HINT_MAKE(q_index, hint_count) (((q_index) << 16) | hint_count) +#define C2_HINT_GET_INDEX(hint) (((hint) & 0x7FFF0000) >> 16) +#define C2_HINT_GET_COUNT(hint) ((hint) & 0x0000FFFF) + + +/* + * The following defines the offset in SDRAM for the c2_adapter_pci_regs_t + * struct. + */ +#define C2_ADAPTER_PCI_REGS_OFFSET 0x10000 + +#ifndef readq +static inline u64 readq(const void __iomem * addr) +{ + u64 ret = readl(addr + 4); + ret <<= 32; + ret |= readl(addr); + + return ret; +} +#endif + +#ifndef writeq +static inline void __raw_writeq(u64 val, void __iomem * addr) +{ + __raw_writel((u32) (val), addr); + __raw_writel((u32) (val >> 32), (addr + 4)); +} +#endif + +#define C2_SET_CUR_RX(c2dev, cur_rx) \ + __raw_writel(cpu_to_be32(cur_rx), c2dev->mmio_txp_ring + 4092) + +#define C2_GET_CUR_RX(c2dev) \ + be32_to_cpu(readl(c2dev->mmio_txp_ring + 4092)) + +static inline struct c2_dev *to_c2dev(struct ib_device *ibdev) +{ + return container_of(ibdev, struct c2_dev, ibdev); +} + +static inline int c2_errno(void *reply) +{ + switch (c2_wr_get_result(reply)) { + case C2_OK: + return 0; + case CCERR_NO_BUFS: + case CCERR_INSUFFICIENT_RESOURCES: + case CCERR_ZERO_RDMA_READ_RESOURCES: + return -ENOMEM; + case CCERR_MR_IN_USE: + case CCERR_QP_IN_USE: + return -EBUSY; + case CCERR_ADDR_IN_USE: + return -EADDRINUSE; + case CCERR_ADDR_NOT_AVAIL: + return -EADDRNOTAVAIL; + case CCERR_CONN_RESET: + return -ECONNRESET; + case CCERR_NOT_IMPLEMENTED: + case CCERR_INVALID_WQE: + return -ENOSYS; + case CCERR_QP_NOT_PRIVILEGED: + return -EPERM; + case CCERR_STACK_ERROR: + return -EPROTO; + case CCERR_ACCESS_VIOLATION: + case CCERR_BASE_AND_BOUNDS_VIOLATION: + return -EFAULT; + case CCERR_STAG_STATE_NOT_INVALID: + case CCERR_INVALID_ADDRESS: + case CCERR_INVALID_CQ: + case CCERR_INVALID_EP: + case CCERR_INVALID_MODIFIER: + case CCERR_INVALID_MTU: + case CCERR_INVALID_PD_ID: + case CCERR_INVALID_QP: + case CCERR_INVALID_RNIC: + case CCERR_INVALID_STAG: + return -EINVAL; + default: + return -EAGAIN; + } +} + +/* Device */ +extern int c2_register_device(struct c2_dev *c2dev); +extern void c2_unregister_device(struct c2_dev *c2dev); +extern int c2_rnic_init(struct c2_dev *c2dev); +extern void c2_rnic_term(struct c2_dev *c2dev); +extern void c2_rnic_interrupt(struct c2_dev *c2dev); +extern int c2_del_addr(struct c2_dev *c2dev, u32 inaddr, u32 inmask); +extern int c2_add_addr(struct c2_dev *c2dev, u32 inaddr, u32 inmask); + +/* QPs */ +extern int c2_alloc_qp(struct c2_dev *c2dev, struct c2_pd *pd, + struct ib_qp_init_attr *qp_attrs, struct c2_qp *qp); +extern void c2_free_qp(struct c2_dev *c2dev, struct c2_qp *qp); +extern struct ib_qp *c2_get_qp(struct ib_device *device, int qpn); +extern int c2_qp_modify(struct c2_dev *c2dev, struct c2_qp *qp, + struct ib_qp_attr *attr, int attr_mask); +extern int c2_qp_set_read_limits(struct c2_dev *c2dev, struct c2_qp *qp, + int ord, int ird); +extern int c2_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr, + struct ib_send_wr **bad_wr); +extern int c2_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *ib_wr, + struct ib_recv_wr **bad_wr); +extern void __devinit c2_init_qp_table(struct c2_dev *c2dev); +extern void __devexit c2_cleanup_qp_table(struct c2_dev *c2dev); +extern void c2_set_qp_state(struct c2_qp *, int); +extern struct c2_qp *c2_find_qpn(struct c2_dev *c2dev, int qpn); + +/* PDs */ +extern int c2_pd_alloc(struct c2_dev *c2dev, int privileged, struct c2_pd *pd); +extern void c2_pd_free(struct c2_dev *c2dev, struct c2_pd *pd); +extern int __devinit c2_init_pd_table(struct c2_dev *c2dev); +extern void __devexit c2_cleanup_pd_table(struct c2_dev *c2dev); + +/* CQs */ +extern int c2_init_cq(struct c2_dev *c2dev, int entries, + struct c2_ucontext *ctx, struct c2_cq *cq); +extern void c2_free_cq(struct c2_dev *c2dev, struct c2_cq *cq); +extern void c2_cq_event(struct c2_dev *c2dev, u32 mq_index); +extern void c2_cq_clean(struct c2_dev *c2dev, struct c2_qp *qp, u32 mq_index); +extern int c2_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry); +extern int c2_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify); + +/* CM */ +extern int c2_llp_connect(struct iw_cm_id *cm_id, + struct iw_cm_conn_param *iw_param); +extern int c2_llp_accept(struct iw_cm_id *cm_id, + struct iw_cm_conn_param *iw_param); +extern int c2_llp_reject(struct iw_cm_id *cm_id, const void *pdata, + u8 pdata_len); +extern int c2_llp_service_create(struct iw_cm_id *cm_id, int backlog); +extern int c2_llp_service_destroy(struct iw_cm_id *cm_id); + +/* MM */ +extern int c2_nsmr_register_phys_kern(struct c2_dev *c2dev, u64 *addr_list, + int page_size, int pbl_depth, u32 length, + u32 off, u64 *va, enum c2_acf acf, + struct c2_mr *mr); +extern int c2_stag_dealloc(struct c2_dev *c2dev, u32 stag_index); + +/* AE */ +extern void c2_ae_event(struct c2_dev *c2dev, u32 mq_index); + +/* MQSP Allocator */ +extern int c2_init_mqsp_pool(struct c2_dev *c2dev, gfp_t gfp_mask, + struct sp_chunk **root); +extern void c2_free_mqsp_pool(struct c2_dev *c2dev, struct sp_chunk *root); +extern u16 *c2_alloc_mqsp(struct c2_dev *c2dev, struct sp_chunk *head, + dma_addr_t *dma_addr, gfp_t gfp_mask); +extern void c2_free_mqsp(u16 * mqsp); +#endif diff --git a/drivers/infiniband/hw/amso1100/c2_ae.c b/drivers/infiniband/hw/amso1100/c2_ae.c new file mode 100644 index 00000000000..08f46c83a3a --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_ae.c @@ -0,0 +1,321 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "c2.h" +#include +#include "c2_status.h" +#include "c2_ae.h" + +static int c2_convert_cm_status(u32 c2_status) +{ + switch (c2_status) { + case C2_CONN_STATUS_SUCCESS: + return 0; + case C2_CONN_STATUS_REJECTED: + return -ENETRESET; + case C2_CONN_STATUS_REFUSED: + return -ECONNREFUSED; + case C2_CONN_STATUS_TIMEDOUT: + return -ETIMEDOUT; + case C2_CONN_STATUS_NETUNREACH: + return -ENETUNREACH; + case C2_CONN_STATUS_HOSTUNREACH: + return -EHOSTUNREACH; + case C2_CONN_STATUS_INVALID_RNIC: + return -EINVAL; + case C2_CONN_STATUS_INVALID_QP: + return -EINVAL; + case C2_CONN_STATUS_INVALID_QP_STATE: + return -EINVAL; + case C2_CONN_STATUS_ADDR_NOT_AVAIL: + return -EADDRNOTAVAIL; + default: + printk(KERN_ERR PFX + "%s - Unable to convert CM status: %d\n", + __FUNCTION__, c2_status); + return -EIO; + } +} + +#ifdef DEBUG +static const char* to_event_str(int event) +{ + static const char* event_str[] = { + "CCAE_REMOTE_SHUTDOWN", + "CCAE_ACTIVE_CONNECT_RESULTS", + "CCAE_CONNECTION_REQUEST", + "CCAE_LLP_CLOSE_COMPLETE", + "CCAE_TERMINATE_MESSAGE_RECEIVED", + "CCAE_LLP_CONNECTION_RESET", + "CCAE_LLP_CONNECTION_LOST", + "CCAE_LLP_SEGMENT_SIZE_INVALID", + "CCAE_LLP_INVALID_CRC", + "CCAE_LLP_BAD_FPDU", + "CCAE_INVALID_DDP_VERSION", + "CCAE_INVALID_RDMA_VERSION", + "CCAE_UNEXPECTED_OPCODE", + "CCAE_INVALID_DDP_QUEUE_NUMBER", + "CCAE_RDMA_READ_NOT_ENABLED", + "CCAE_RDMA_WRITE_NOT_ENABLED", + "CCAE_RDMA_READ_TOO_SMALL", + "CCAE_NO_L_BIT", + "CCAE_TAGGED_INVALID_STAG", + "CCAE_TAGGED_BASE_BOUNDS_VIOLATION", + "CCAE_TAGGED_ACCESS_RIGHTS_VIOLATION", + "CCAE_TAGGED_INVALID_PD", + "CCAE_WRAP_ERROR", + "CCAE_BAD_CLOSE", + "CCAE_BAD_LLP_CLOSE", + "CCAE_INVALID_MSN_RANGE", + "CCAE_INVALID_MSN_GAP", + "CCAE_IRRQ_OVERFLOW", + "CCAE_IRRQ_MSN_GAP", + "CCAE_IRRQ_MSN_RANGE", + "CCAE_IRRQ_INVALID_STAG", + "CCAE_IRRQ_BASE_BOUNDS_VIOLATION", + "CCAE_IRRQ_ACCESS_RIGHTS_VIOLATION", + "CCAE_IRRQ_INVALID_PD", + "CCAE_IRRQ_WRAP_ERROR", + "CCAE_CQ_SQ_COMPLETION_OVERFLOW", + "CCAE_CQ_RQ_COMPLETION_ERROR", + "CCAE_QP_SRQ_WQE_ERROR", + "CCAE_QP_LOCAL_CATASTROPHIC_ERROR", + "CCAE_CQ_OVERFLOW", + "CCAE_CQ_OPERATION_ERROR", + "CCAE_SRQ_LIMIT_REACHED", + "CCAE_QP_RQ_LIMIT_REACHED", + "CCAE_SRQ_CATASTROPHIC_ERROR", + "CCAE_RNIC_CATASTROPHIC_ERROR" + }; + + if (event < CCAE_REMOTE_SHUTDOWN || + event > CCAE_RNIC_CATASTROPHIC_ERROR) + return ""; + + event -= CCAE_REMOTE_SHUTDOWN; + return event_str[event]; +} + +static const char *to_qp_state_str(int state) +{ + switch (state) { + case C2_QP_STATE_IDLE: + return "C2_QP_STATE_IDLE"; + case C2_QP_STATE_CONNECTING: + return "C2_QP_STATE_CONNECTING"; + case C2_QP_STATE_RTS: + return "C2_QP_STATE_RTS"; + case C2_QP_STATE_CLOSING: + return "C2_QP_STATE_CLOSING"; + case C2_QP_STATE_TERMINATE: + return "C2_QP_STATE_TERMINATE"; + case C2_QP_STATE_ERROR: + return "C2_QP_STATE_ERROR"; + default: + return ""; + }; +} +#endif + +void c2_ae_event(struct c2_dev *c2dev, u32 mq_index) +{ + struct c2_mq *mq = c2dev->qptr_array[mq_index]; + union c2wr *wr; + void *resource_user_context; + struct iw_cm_event cm_event; + struct ib_event ib_event; + enum c2_resource_indicator resource_indicator; + enum c2_event_id event_id; + unsigned long flags; + int status; + + /* + * retreive the message + */ + wr = c2_mq_consume(mq); + if (!wr) + return; + + memset(&ib_event, 0, sizeof(ib_event)); + memset(&cm_event, 0, sizeof(cm_event)); + + event_id = c2_wr_get_id(wr); + resource_indicator = be32_to_cpu(wr->ae.ae_generic.resource_type); + resource_user_context = + (void *) (unsigned long) wr->ae.ae_generic.user_context; + + status = cm_event.status = c2_convert_cm_status(c2_wr_get_result(wr)); + + pr_debug("event received c2_dev=%p, event_id=%d, " + "resource_indicator=%d, user_context=%p, status = %d\n", + c2dev, event_id, resource_indicator, resource_user_context, + status); + + switch (resource_indicator) { + case C2_RES_IND_QP:{ + + struct c2_qp *qp = (struct c2_qp *)resource_user_context; + struct iw_cm_id *cm_id = qp->cm_id; + struct c2wr_ae_active_connect_results *res; + + if (!cm_id) { + pr_debug("event received, but cm_id is , qp=%p!\n", + qp); + goto ignore_it; + } + pr_debug("%s: event = %s, user_context=%llx, " + "resource_type=%x, " + "resource=%x, qp_state=%s\n", + __FUNCTION__, + to_event_str(event_id), + be64_to_cpu(wr->ae.ae_generic.user_context), + be32_to_cpu(wr->ae.ae_generic.resource_type), + be32_to_cpu(wr->ae.ae_generic.resource), + to_qp_state_str(be32_to_cpu(wr->ae.ae_generic.qp_state))); + + c2_set_qp_state(qp, be32_to_cpu(wr->ae.ae_generic.qp_state)); + + switch (event_id) { + case CCAE_ACTIVE_CONNECT_RESULTS: + res = &wr->ae.ae_active_connect_results; + cm_event.event = IW_CM_EVENT_CONNECT_REPLY; + cm_event.local_addr.sin_addr.s_addr = res->laddr; + cm_event.remote_addr.sin_addr.s_addr = res->raddr; + cm_event.local_addr.sin_port = res->lport; + cm_event.remote_addr.sin_port = res->rport; + if (status == 0) { + cm_event.private_data_len = + be32_to_cpu(res->private_data_length); + cm_event.private_data = res->private_data; + } else { + spin_lock_irqsave(&qp->lock, flags); + if (qp->cm_id) { + qp->cm_id->rem_ref(qp->cm_id); + qp->cm_id = NULL; + } + spin_unlock_irqrestore(&qp->lock, flags); + cm_event.private_data_len = 0; + cm_event.private_data = NULL; + } + if (cm_id->event_handler) + cm_id->event_handler(cm_id, &cm_event); + break; + case CCAE_TERMINATE_MESSAGE_RECEIVED: + case CCAE_CQ_SQ_COMPLETION_OVERFLOW: + ib_event.device = &c2dev->ibdev; + ib_event.element.qp = &qp->ibqp; + ib_event.event = IB_EVENT_QP_REQ_ERR; + + if (qp->ibqp.event_handler) + qp->ibqp.event_handler(&ib_event, + qp->ibqp. + qp_context); + break; + case CCAE_BAD_CLOSE: + case CCAE_LLP_CLOSE_COMPLETE: + case CCAE_LLP_CONNECTION_RESET: + case CCAE_LLP_CONNECTION_LOST: + BUG_ON(cm_id->event_handler==(void*)0x6b6b6b6b); + + spin_lock_irqsave(&qp->lock, flags); + if (qp->cm_id) { + qp->cm_id->rem_ref(qp->cm_id); + qp->cm_id = NULL; + } + spin_unlock_irqrestore(&qp->lock, flags); + cm_event.event = IW_CM_EVENT_CLOSE; + cm_event.status = 0; + if (cm_id->event_handler) + cm_id->event_handler(cm_id, &cm_event); + break; + default: + BUG_ON(1); + pr_debug("%s:%d Unexpected event_id=%d on QP=%p, " + "CM_ID=%p\n", + __FUNCTION__, __LINE__, + event_id, qp, cm_id); + break; + } + break; + } + + case C2_RES_IND_EP:{ + + struct c2wr_ae_connection_request *req = + &wr->ae.ae_connection_request; + struct iw_cm_id *cm_id = + (struct iw_cm_id *)resource_user_context; + + pr_debug("C2_RES_IND_EP event_id=%d\n", event_id); + if (event_id != CCAE_CONNECTION_REQUEST) { + pr_debug("%s: Invalid event_id: %d\n", + __FUNCTION__, event_id); + break; + } + cm_event.event = IW_CM_EVENT_CONNECT_REQUEST; + cm_event.provider_data = (void*)(unsigned long)req->cr_handle; + cm_event.local_addr.sin_addr.s_addr = req->laddr; + cm_event.remote_addr.sin_addr.s_addr = req->raddr; + cm_event.local_addr.sin_port = req->lport; + cm_event.remote_addr.sin_port = req->rport; + cm_event.private_data_len = + be32_to_cpu(req->private_data_length); + cm_event.private_data = req->private_data; + + if (cm_id->event_handler) + cm_id->event_handler(cm_id, &cm_event); + break; + } + + case C2_RES_IND_CQ:{ + struct c2_cq *cq = + (struct c2_cq *) resource_user_context; + + pr_debug("IB_EVENT_CQ_ERR\n"); + ib_event.device = &c2dev->ibdev; + ib_event.element.cq = &cq->ibcq; + ib_event.event = IB_EVENT_CQ_ERR; + + if (cq->ibcq.event_handler) + cq->ibcq.event_handler(&ib_event, + cq->ibcq.cq_context); + } + + default: + printk("Bad resource indicator = %d\n", + resource_indicator); + break; + } + + ignore_it: + c2_mq_free(mq); +} diff --git a/drivers/infiniband/hw/amso1100/c2_ae.h b/drivers/infiniband/hw/amso1100/c2_ae.h new file mode 100644 index 00000000000..3a065c33b83 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_ae.h @@ -0,0 +1,108 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef _C2_AE_H_ +#define _C2_AE_H_ + +/* + * WARNING: If you change this file, also bump C2_IVN_BASE + * in common/include/clustercore/c2_ivn.h. + */ + +/* + * Asynchronous Event Identifiers + * + * These start at 0x80 only so it's obvious from inspection that + * they are not work-request statuses. This isn't critical. + * + * NOTE: these event id's must fit in eight bits. + */ +enum c2_event_id { + CCAE_REMOTE_SHUTDOWN = 0x80, + CCAE_ACTIVE_CONNECT_RESULTS, + CCAE_CONNECTION_REQUEST, + CCAE_LLP_CLOSE_COMPLETE, + CCAE_TERMINATE_MESSAGE_RECEIVED, + CCAE_LLP_CONNECTION_RESET, + CCAE_LLP_CONNECTION_LOST, + CCAE_LLP_SEGMENT_SIZE_INVALID, + CCAE_LLP_INVALID_CRC, + CCAE_LLP_BAD_FPDU, + CCAE_INVALID_DDP_VERSION, + CCAE_INVALID_RDMA_VERSION, + CCAE_UNEXPECTED_OPCODE, + CCAE_INVALID_DDP_QUEUE_NUMBER, + CCAE_RDMA_READ_NOT_ENABLED, + CCAE_RDMA_WRITE_NOT_ENABLED, + CCAE_RDMA_READ_TOO_SMALL, + CCAE_NO_L_BIT, + CCAE_TAGGED_INVALID_STAG, + CCAE_TAGGED_BASE_BOUNDS_VIOLATION, + CCAE_TAGGED_ACCESS_RIGHTS_VIOLATION, + CCAE_TAGGED_INVALID_PD, + CCAE_WRAP_ERROR, + CCAE_BAD_CLOSE, + CCAE_BAD_LLP_CLOSE, + CCAE_INVALID_MSN_RANGE, + CCAE_INVALID_MSN_GAP, + CCAE_IRRQ_OVERFLOW, + CCAE_IRRQ_MSN_GAP, + CCAE_IRRQ_MSN_RANGE, + CCAE_IRRQ_INVALID_STAG, + CCAE_IRRQ_BASE_BOUNDS_VIOLATION, + CCAE_IRRQ_ACCESS_RIGHTS_VIOLATION, + CCAE_IRRQ_INVALID_PD, + CCAE_IRRQ_WRAP_ERROR, + CCAE_CQ_SQ_COMPLETION_OVERFLOW, + CCAE_CQ_RQ_COMPLETION_ERROR, + CCAE_QP_SRQ_WQE_ERROR, + CCAE_QP_LOCAL_CATASTROPHIC_ERROR, + CCAE_CQ_OVERFLOW, + CCAE_CQ_OPERATION_ERROR, + CCAE_SRQ_LIMIT_REACHED, + CCAE_QP_RQ_LIMIT_REACHED, + CCAE_SRQ_CATASTROPHIC_ERROR, + CCAE_RNIC_CATASTROPHIC_ERROR +/* WARNING If you add more id's, make sure their values fit in eight bits. */ +}; + +/* + * Resource Indicators and Identifiers + */ +enum c2_resource_indicator { + C2_RES_IND_QP = 1, + C2_RES_IND_EP, + C2_RES_IND_CQ, + C2_RES_IND_SRQ, +}; + +#endif /* _C2_AE_H_ */ diff --git a/drivers/infiniband/hw/amso1100/c2_alloc.c b/drivers/infiniband/hw/amso1100/c2_alloc.c new file mode 100644 index 00000000000..1d2529992c0 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_alloc.c @@ -0,0 +1,144 @@ +/* + * Copyright (c) 2004 Topspin Communications. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include +#include +#include + +#include "c2.h" + +static int c2_alloc_mqsp_chunk(struct c2_dev *c2dev, gfp_t gfp_mask, + struct sp_chunk **head) +{ + int i; + struct sp_chunk *new_head; + + new_head = (struct sp_chunk *) __get_free_page(gfp_mask); + if (new_head == NULL) + return -ENOMEM; + + new_head->dma_addr = dma_map_single(c2dev->ibdev.dma_device, new_head, + PAGE_SIZE, DMA_FROM_DEVICE); + pci_unmap_addr_set(new_head, mapping, new_head->dma_addr); + + new_head->next = NULL; + new_head->head = 0; + + /* build list where each index is the next free slot */ + for (i = 0; + i < (PAGE_SIZE - sizeof(struct sp_chunk) - + sizeof(u16)) / sizeof(u16) - 1; + i++) { + new_head->shared_ptr[i] = i + 1; + } + /* terminate list */ + new_head->shared_ptr[i] = 0xFFFF; + + *head = new_head; + return 0; +} + +int c2_init_mqsp_pool(struct c2_dev *c2dev, gfp_t gfp_mask, + struct sp_chunk **root) +{ + return c2_alloc_mqsp_chunk(c2dev, gfp_mask, root); +} + +void c2_free_mqsp_pool(struct c2_dev *c2dev, struct sp_chunk *root) +{ + struct sp_chunk *next; + + while (root) { + next = root->next; + dma_unmap_single(c2dev->ibdev.dma_device, + pci_unmap_addr(root, mapping), PAGE_SIZE, + DMA_FROM_DEVICE); + __free_page((struct page *) root); + root = next; + } +} + +u16 *c2_alloc_mqsp(struct c2_dev *c2dev, struct sp_chunk *head, + dma_addr_t *dma_addr, gfp_t gfp_mask) +{ + u16 mqsp; + + while (head) { + mqsp = head->head; + if (mqsp != 0xFFFF) { + head->head = head->shared_ptr[mqsp]; + break; + } else if (head->next == NULL) { + if (c2_alloc_mqsp_chunk(c2dev, gfp_mask, &head->next) == + 0) { + head = head->next; + mqsp = head->head; + head->head = head->shared_ptr[mqsp]; + break; + } else + return NULL; + } else + head = head->next; + } + if (head) { + *dma_addr = head->dma_addr + + ((unsigned long) &(head->shared_ptr[mqsp]) - + (unsigned long) head); + pr_debug("%s addr %p dma_addr %llx\n", __FUNCTION__, + &(head->shared_ptr[mqsp]), (u64)*dma_addr); + return &(head->shared_ptr[mqsp]); + } + return NULL; +} + +void c2_free_mqsp(u16 * mqsp) +{ + struct sp_chunk *head; + u16 idx; + + /* The chunk containing this ptr begins at the page boundary */ + head = (struct sp_chunk *) ((unsigned long) mqsp & PAGE_MASK); + + /* Link head to new mqsp */ + *mqsp = head->head; + + /* Compute the shared_ptr index */ + idx = ((unsigned long) mqsp & ~PAGE_MASK) >> 1; + idx -= (unsigned long) &(((struct sp_chunk *) 0)->shared_ptr[0]) >> 1; + + /* Point this index at the head */ + head->shared_ptr[idx] = head->head; + + /* Point head at this index */ + head->head = idx; +} diff --git a/drivers/infiniband/hw/amso1100/c2_cm.c b/drivers/infiniband/hw/amso1100/c2_cm.c new file mode 100644 index 00000000000..485254efdd1 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_cm.c @@ -0,0 +1,452 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ +#include "c2.h" +#include "c2_wr.h" +#include "c2_vq.h" +#include + +int c2_llp_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) +{ + struct c2_dev *c2dev = to_c2dev(cm_id->device); + struct ib_qp *ibqp; + struct c2_qp *qp; + struct c2wr_qp_connect_req *wr; /* variable size needs a malloc. */ + struct c2_vq_req *vq_req; + int err; + + ibqp = c2_get_qp(cm_id->device, iw_param->qpn); + if (!ibqp) + return -EINVAL; + qp = to_c2qp(ibqp); + + /* Associate QP <--> CM_ID */ + cm_id->provider_data = qp; + cm_id->add_ref(cm_id); + qp->cm_id = cm_id; + + /* + * only support the max private_data length + */ + if (iw_param->private_data_len > C2_MAX_PRIVATE_DATA_SIZE) { + err = -EINVAL; + goto bail0; + } + /* + * Set the rdma read limits + */ + err = c2_qp_set_read_limits(c2dev, qp, iw_param->ord, iw_param->ird); + if (err) + goto bail0; + + /* + * Create and send a WR_QP_CONNECT... + */ + wr = kmalloc(c2dev->req_vq.msg_size, GFP_KERNEL); + if (!wr) { + err = -ENOMEM; + goto bail0; + } + + vq_req = vq_req_alloc(c2dev); + if (!vq_req) { + err = -ENOMEM; + goto bail1; + } + + c2_wr_set_id(wr, CCWR_QP_CONNECT); + wr->hdr.context = 0; + wr->rnic_handle = c2dev->adapter_handle; + wr->qp_handle = qp->adapter_handle; + + wr->remote_addr = cm_id->remote_addr.sin_addr.s_addr; + wr->remote_port = cm_id->remote_addr.sin_port; + + /* + * Move any private data from the callers's buf into + * the WR. + */ + if (iw_param->private_data) { + wr->private_data_length = + cpu_to_be32(iw_param->private_data_len); + memcpy(&wr->private_data[0], iw_param->private_data, + iw_param->private_data_len); + } else + wr->private_data_length = 0; + + /* + * Send WR to adapter. NOTE: There is no synch reply from + * the adapter. + */ + err = vq_send_wr(c2dev, (union c2wr *) wr); + vq_req_free(c2dev, vq_req); + + bail1: + kfree(wr); + bail0: + if (err) { + /* + * If we fail, release reference on QP and + * disassociate QP from CM_ID + */ + cm_id->provider_data = NULL; + qp->cm_id = NULL; + cm_id->rem_ref(cm_id); + } + return err; +} + +int c2_llp_service_create(struct iw_cm_id *cm_id, int backlog) +{ + struct c2_dev *c2dev; + struct c2wr_ep_listen_create_req wr; + struct c2wr_ep_listen_create_rep *reply; + struct c2_vq_req *vq_req; + int err; + + c2dev = to_c2dev(cm_id->device); + if (c2dev == NULL) + return -EINVAL; + + /* + * Allocate verbs request. + */ + vq_req = vq_req_alloc(c2dev); + if (!vq_req) + return -ENOMEM; + + /* + * Build the WR + */ + c2_wr_set_id(&wr, CCWR_EP_LISTEN_CREATE); + wr.hdr.context = (u64) (unsigned long) vq_req; + wr.rnic_handle = c2dev->adapter_handle; + wr.local_addr = cm_id->local_addr.sin_addr.s_addr; + wr.local_port = cm_id->local_addr.sin_port; + wr.backlog = cpu_to_be32(backlog); + wr.user_context = (u64) (unsigned long) cm_id; + + /* + * Reference the request struct. Dereferenced in the int handler. + */ + vq_req_get(c2dev, vq_req); + + /* + * Send WR to adapter + */ + err = vq_send_wr(c2dev, (union c2wr *) & wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail0; + } + + /* + * Wait for reply from adapter + */ + err = vq_wait_for_reply(c2dev, vq_req); + if (err) + goto bail0; + + /* + * Process reply + */ + reply = + (struct c2wr_ep_listen_create_rep *) (unsigned long) vq_req->reply_msg; + if (!reply) { + err = -ENOMEM; + goto bail1; + } + + if ((err = c2_errno(reply)) != 0) + goto bail1; + + /* + * Keep the adapter handle. Used in subsequent destroy + */ + cm_id->provider_data = (void*)(unsigned long) reply->ep_handle; + + /* + * free vq stuff + */ + vq_repbuf_free(c2dev, reply); + vq_req_free(c2dev, vq_req); + + return 0; + + bail1: + vq_repbuf_free(c2dev, reply); + bail0: + vq_req_free(c2dev, vq_req); + return err; +} + + +int c2_llp_service_destroy(struct iw_cm_id *cm_id) +{ + + struct c2_dev *c2dev; + struct c2wr_ep_listen_destroy_req wr; + struct c2wr_ep_listen_destroy_rep *reply; + struct c2_vq_req *vq_req; + int err; + + c2dev = to_c2dev(cm_id->device); + if (c2dev == NULL) + return -EINVAL; + + /* + * Allocate verbs request. + */ + vq_req = vq_req_alloc(c2dev); + if (!vq_req) + return -ENOMEM; + + /* + * Build the WR + */ + c2_wr_set_id(&wr, CCWR_EP_LISTEN_DESTROY); + wr.hdr.context = (unsigned long) vq_req; + wr.rnic_handle = c2dev->adapter_handle; + wr.ep_handle = (u32)(unsigned long)cm_id->provider_data; + + /* + * reference the request struct. dereferenced in the int handler. + */ + vq_req_get(c2dev, vq_req); + + /* + * Send WR to adapter + */ + err = vq_send_wr(c2dev, (union c2wr *) & wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail0; + } + + /* + * Wait for reply from adapter + */ + err = vq_wait_for_reply(c2dev, vq_req); + if (err) + goto bail0; + + /* + * Process reply + */ + reply=(struct c2wr_ep_listen_destroy_rep *)(unsigned long)vq_req->reply_msg; + if (!reply) { + err = -ENOMEM; + goto bail0; + } + if ((err = c2_errno(reply)) != 0) + goto bail1; + + bail1: + vq_repbuf_free(c2dev, reply); + bail0: + vq_req_free(c2dev, vq_req); + return err; +} + +int c2_llp_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) +{ + struct c2_dev *c2dev = to_c2dev(cm_id->device); + struct c2_qp *qp; + struct ib_qp *ibqp; + struct c2wr_cr_accept_req *wr; /* variable length WR */ + struct c2_vq_req *vq_req; + struct c2wr_cr_accept_rep *reply; /* VQ Reply msg ptr. */ + int err; + + ibqp = c2_get_qp(cm_id->device, iw_param->qpn); + if (!ibqp) + return -EINVAL; + qp = to_c2qp(ibqp); + + /* Set the RDMA read limits */ + err = c2_qp_set_read_limits(c2dev, qp, iw_param->ord, iw_param->ird); + if (err) + goto bail0; + + /* Allocate verbs request. */ + vq_req = vq_req_alloc(c2dev); + if (!vq_req) { + err = -ENOMEM; + goto bail1; + } + vq_req->qp = qp; + vq_req->cm_id = cm_id; + vq_req->event = IW_CM_EVENT_ESTABLISHED; + + wr = kmalloc(c2dev->req_vq.msg_size, GFP_KERNEL); + if (!wr) { + err = -ENOMEM; + goto bail2; + } + + /* Build the WR */ + c2_wr_set_id(wr, CCWR_CR_ACCEPT); + wr->hdr.context = (unsigned long) vq_req; + wr->rnic_handle = c2dev->adapter_handle; + wr->ep_handle = (u32) (unsigned long) cm_id->provider_data; + wr->qp_handle = qp->adapter_handle; + + /* Replace the cr_handle with the QP after accept */ + cm_id->provider_data = qp; + cm_id->add_ref(cm_id); + qp->cm_id = cm_id; + + cm_id->provider_data = qp; + + /* Validate private_data length */ + if (iw_param->private_data_len > C2_MAX_PRIVATE_DATA_SIZE) { + err = -EINVAL; + goto bail2; + } + + if (iw_param->private_data) { + wr->private_data_length = cpu_to_be32(iw_param->private_data_len); + memcpy(&wr->private_data[0], + iw_param->private_data, iw_param->private_data_len); + } else + wr->private_data_length = 0; + + /* Reference the request struct. Dereferenced in the int handler. */ + vq_req_get(c2dev, vq_req); + + /* Send WR to adapter */ + err = vq_send_wr(c2dev, (union c2wr *) wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail2; + } + + /* Wait for reply from adapter */ + err = vq_wait_for_reply(c2dev, vq_req); + if (err) + goto bail2; + + /* Check that reply is present */ + reply = (struct c2wr_cr_accept_rep *) (unsigned long) vq_req->reply_msg; + if (!reply) { + err = -ENOMEM; + goto bail2; + } + + err = c2_errno(reply); + vq_repbuf_free(c2dev, reply); + + if (!err) + c2_set_qp_state(qp, C2_QP_STATE_RTS); + bail2: + kfree(wr); + bail1: + vq_req_free(c2dev, vq_req); + bail0: + if (err) { + /* + * If we fail, release reference on QP and + * disassociate QP from CM_ID + */ + cm_id->provider_data = NULL; + qp->cm_id = NULL; + cm_id->rem_ref(cm_id); + } + return err; +} + +int c2_llp_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len) +{ + struct c2_dev *c2dev; + struct c2wr_cr_reject_req wr; + struct c2_vq_req *vq_req; + struct c2wr_cr_reject_rep *reply; + int err; + + c2dev = to_c2dev(cm_id->device); + + /* + * Allocate verbs request. + */ + vq_req = vq_req_alloc(c2dev); + if (!vq_req) + return -ENOMEM; + + /* + * Build the WR + */ + c2_wr_set_id(&wr, CCWR_CR_REJECT); + wr.hdr.context = (unsigned long) vq_req; + wr.rnic_handle = c2dev->adapter_handle; + wr.ep_handle = (u32) (unsigned long) cm_id->provider_data; + + /* + * reference the request struct. dereferenced in the int handler. + */ + vq_req_get(c2dev, vq_req); + + /* + * Send WR to adapter + */ + err = vq_send_wr(c2dev, (union c2wr *) & wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail0; + } + + /* + * Wait for reply from adapter + */ + err = vq_wait_for_reply(c2dev, vq_req); + if (err) + goto bail0; + + /* + * Process reply + */ + reply = (struct c2wr_cr_reject_rep *) (unsigned long) + vq_req->reply_msg; + if (!reply) { + err = -ENOMEM; + goto bail0; + } + err = c2_errno(reply); + /* + * free vq stuff + */ + vq_repbuf_free(c2dev, reply); + + bail0: + vq_req_free(c2dev, vq_req); + return err; +} diff --git a/drivers/infiniband/hw/amso1100/c2_cq.c b/drivers/infiniband/hw/amso1100/c2_cq.c new file mode 100644 index 00000000000..9d7bcc5ade9 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_cq.c @@ -0,0 +1,433 @@ +/* + * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. + * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. + * Copyright (c) 2005 Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2004 Voltaire, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ +#include "c2.h" +#include "c2_vq.h" +#include "c2_status.h" + +#define C2_CQ_MSG_SIZE ((sizeof(struct c2wr_ce) + 32-1) & ~(32-1)) + +static struct c2_cq *c2_cq_get(struct c2_dev *c2dev, int cqn) +{ + struct c2_cq *cq; + unsigned long flags; + + spin_lock_irqsave(&c2dev->lock, flags); + cq = c2dev->qptr_array[cqn]; + if (!cq) { + spin_unlock_irqrestore(&c2dev->lock, flags); + return NULL; + } + atomic_inc(&cq->refcount); + spin_unlock_irqrestore(&c2dev->lock, flags); + return cq; +} + +static void c2_cq_put(struct c2_cq *cq) +{ + if (atomic_dec_and_test(&cq->refcount)) + wake_up(&cq->wait); +} + +void c2_cq_event(struct c2_dev *c2dev, u32 mq_index) +{ + struct c2_cq *cq; + + cq = c2_cq_get(c2dev, mq_index); + if (!cq) { + printk("discarding events on destroyed CQN=%d\n", mq_index); + return; + } + + (*cq->ibcq.comp_handler) (&cq->ibcq, cq->ibcq.cq_context); + c2_cq_put(cq); +} + +void c2_cq_clean(struct c2_dev *c2dev, struct c2_qp *qp, u32 mq_index) +{ + struct c2_cq *cq; + struct c2_mq *q; + + cq = c2_cq_get(c2dev, mq_index); + if (!cq) + return; + + spin_lock_irq(&cq->lock); + q = &cq->mq; + if (q && !c2_mq_empty(q)) { + u16 priv = q->priv; + struct c2wr_ce *msg; + + while (priv != be16_to_cpu(*q->shared)) { + msg = (struct c2wr_ce *) + (q->msg_pool.host + priv * q->msg_size); + if (msg->qp_user_context == (u64) (unsigned long) qp) { + msg->qp_user_context = (u64) 0; + } + priv = (priv + 1) % q->q_size; + } + } + spin_unlock_irq(&cq->lock); + c2_cq_put(cq); +} + +static inline enum ib_wc_status c2_cqe_status_to_openib(u8 status) +{ + switch (status) { + case C2_OK: + return IB_WC_SUCCESS; + case CCERR_FLUSHED: + return IB_WC_WR_FLUSH_ERR; + case CCERR_BASE_AND_BOUNDS_VIOLATION: + return IB_WC_LOC_PROT_ERR; + case CCERR_ACCESS_VIOLATION: + return IB_WC_LOC_ACCESS_ERR; + case CCERR_TOTAL_LENGTH_TOO_BIG: + return IB_WC_LOC_LEN_ERR; + case CCERR_INVALID_WINDOW: + return IB_WC_MW_BIND_ERR; + default: + return IB_WC_GENERAL_ERR; + } +} + + +static inline int c2_poll_one(struct c2_dev *c2dev, + struct c2_cq *cq, struct ib_wc *entry) +{ + struct c2wr_ce *ce; + struct c2_qp *qp; + int is_recv = 0; + + ce = (struct c2wr_ce *) c2_mq_consume(&cq->mq); + if (!ce) { + return -EAGAIN; + } + + /* + * if the qp returned is null then this qp has already + * been freed and we are unable process the completion. + * try pulling the next message + */ + while ((qp = + (struct c2_qp *) (unsigned long) ce->qp_user_context) == NULL) { + c2_mq_free(&cq->mq); + ce = (struct c2wr_ce *) c2_mq_consume(&cq->mq); + if (!ce) + return -EAGAIN; + } + + entry->status = c2_cqe_status_to_openib(c2_wr_get_result(ce)); + entry->wr_id = ce->hdr.context; + entry->qp_num = ce->handle; + entry->wc_flags = 0; + entry->slid = 0; + entry->sl = 0; + entry->src_qp = 0; + entry->dlid_path_bits = 0; + entry->pkey_index = 0; + + switch (c2_wr_get_id(ce)) { + case C2_WR_TYPE_SEND: + entry->opcode = IB_WC_SEND; + break; + case C2_WR_TYPE_RDMA_WRITE: + entry->opcode = IB_WC_RDMA_WRITE; + break; + case C2_WR_TYPE_RDMA_READ: + entry->opcode = IB_WC_RDMA_READ; + break; + case C2_WR_TYPE_BIND_MW: + entry->opcode = IB_WC_BIND_MW; + break; + case C2_WR_TYPE_RECV: + entry->byte_len = be32_to_cpu(ce->bytes_rcvd); + entry->opcode = IB_WC_RECV; + is_recv = 1; + break; + default: + break; + } + + /* consume the WQEs */ + if (is_recv) + c2_mq_lconsume(&qp->rq_mq, 1); + else + c2_mq_lconsume(&qp->sq_mq, + be32_to_cpu(c2_wr_get_wqe_count(ce)) + 1); + + /* free the message */ + c2_mq_free(&cq->mq); + + return 0; +} + +int c2_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry) +{ + struct c2_dev *c2dev = to_c2dev(ibcq->device); + struct c2_cq *cq = to_c2cq(ibcq); + unsigned long flags; + int npolled, err; + + spin_lock_irqsave(&cq->lock, flags); + + for (npolled = 0; npolled < num_entries; ++npolled) { + + err = c2_poll_one(c2dev, cq, entry + npolled); + if (err) + break; + } + + spin_unlock_irqrestore(&cq->lock, flags); + + return npolled; +} + +int c2_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify) +{ + struct c2_mq_shared __iomem *shared; + struct c2_cq *cq; + + cq = to_c2cq(ibcq); + shared = cq->mq.peer; + + if (notify == IB_CQ_NEXT_COMP) + writeb(C2_CQ_NOTIFICATION_TYPE_NEXT, &shared->notification_type); + else if (notify == IB_CQ_SOLICITED) + writeb(C2_CQ_NOTIFICATION_TYPE_NEXT_SE, &shared->notification_type); + else + return -EINVAL; + + writeb(CQ_WAIT_FOR_DMA | CQ_ARMED, &shared->armed); + + /* + * Now read back shared->armed to make the PCI + * write synchronous. This is necessary for + * correct cq notification semantics. + */ + readb(&shared->armed); + + return 0; +} + +static void c2_free_cq_buf(struct c2_dev *c2dev, struct c2_mq *mq) +{ + + dma_unmap_single(c2dev->ibdev.dma_device, pci_unmap_addr(mq, mapping), + mq->q_size * mq->msg_size, DMA_FROM_DEVICE); + free_pages((unsigned long) mq->msg_pool.host, + get_order(mq->q_size * mq->msg_size)); +} + +static int c2_alloc_cq_buf(struct c2_dev *c2dev, struct c2_mq *mq, int q_size, + int msg_size) +{ + unsigned long pool_start; + + pool_start = __get_free_pages(GFP_KERNEL, + get_order(q_size * msg_size)); + if (!pool_start) + return -ENOMEM; + + c2_mq_rep_init(mq, + 0, /* index (currently unknown) */ + q_size, + msg_size, + (u8 *) pool_start, + NULL, /* peer (currently unknown) */ + C2_MQ_HOST_TARGET); + + mq->host_dma = dma_map_single(c2dev->ibdev.dma_device, + (void *)pool_start, + q_size * msg_size, DMA_FROM_DEVICE); + pci_unmap_addr_set(mq, mapping, mq->host_dma); + + return 0; +} + +int c2_init_cq(struct c2_dev *c2dev, int entries, + struct c2_ucontext *ctx, struct c2_cq *cq) +{ + struct c2wr_cq_create_req wr; + struct c2wr_cq_create_rep *reply; + unsigned long peer_pa; + struct c2_vq_req *vq_req; + int err; + + might_sleep(); + + cq->ibcq.cqe = entries - 1; + cq->is_kernel = !ctx; + + /* Allocate a shared pointer */ + cq->mq.shared = c2_alloc_mqsp(c2dev, c2dev->kern_mqsp_pool, + &cq->mq.shared_dma, GFP_KERNEL); + if (!cq->mq.shared) + return -ENOMEM; + + /* Allocate pages for the message pool */ + err = c2_alloc_cq_buf(c2dev, &cq->mq, entries + 1, C2_CQ_MSG_SIZE); + if (err) + goto bail0; + + vq_req = vq_req_alloc(c2dev); + if (!vq_req) { + err = -ENOMEM; + goto bail1; + } + + memset(&wr, 0, sizeof(wr)); + c2_wr_set_id(&wr, CCWR_CQ_CREATE); + wr.hdr.context = (unsigned long) vq_req; + wr.rnic_handle = c2dev->adapter_handle; + wr.msg_size = cpu_to_be32(cq->mq.msg_size); + wr.depth = cpu_to_be32(cq->mq.q_size); + wr.shared_ht = cpu_to_be64(cq->mq.shared_dma); + wr.msg_pool = cpu_to_be64(cq->mq.host_dma); + wr.user_context = (u64) (unsigned long) (cq); + + vq_req_get(c2dev, vq_req); + + err = vq_send_wr(c2dev, (union c2wr *) & wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail2; + } + + err = vq_wait_for_reply(c2dev, vq_req); + if (err) + goto bail2; + + reply = (struct c2wr_cq_create_rep *) (unsigned long) (vq_req->reply_msg); + if (!reply) { + err = -ENOMEM; + goto bail2; + } + + if ((err = c2_errno(reply)) != 0) + goto bail3; + + cq->adapter_handle = reply->cq_handle; + cq->mq.index = be32_to_cpu(reply->mq_index); + + peer_pa = c2dev->pa + be32_to_cpu(reply->adapter_shared); + cq->mq.peer = ioremap_nocache(peer_pa, PAGE_SIZE); + if (!cq->mq.peer) { + err = -ENOMEM; + goto bail3; + } + + vq_repbuf_free(c2dev, reply); + vq_req_free(c2dev, vq_req); + + spin_lock_init(&cq->lock); + atomic_set(&cq->refcount, 1); + init_waitqueue_head(&cq->wait); + + /* + * Use the MQ index allocated by the adapter to + * store the CQ in the qptr_array + */ + cq->cqn = cq->mq.index; + c2dev->qptr_array[cq->cqn] = cq; + + return 0; + + bail3: + vq_repbuf_free(c2dev, reply); + bail2: + vq_req_free(c2dev, vq_req); + bail1: + c2_free_cq_buf(c2dev, &cq->mq); + bail0: + c2_free_mqsp(cq->mq.shared); + + return err; +} + +void c2_free_cq(struct c2_dev *c2dev, struct c2_cq *cq) +{ + int err; + struct c2_vq_req *vq_req; + struct c2wr_cq_destroy_req wr; + struct c2wr_cq_destroy_rep *reply; + + might_sleep(); + + /* Clear CQ from the qptr array */ + spin_lock_irq(&c2dev->lock); + c2dev->qptr_array[cq->mq.index] = NULL; + atomic_dec(&cq->refcount); + spin_unlock_irq(&c2dev->lock); + + wait_event(cq->wait, !atomic_read(&cq->refcount)); + + vq_req = vq_req_alloc(c2dev); + if (!vq_req) { + goto bail0; + } + + memset(&wr, 0, sizeof(wr)); + c2_wr_set_id(&wr, CCWR_CQ_DESTROY); + wr.hdr.context = (unsigned long) vq_req; + wr.rnic_handle = c2dev->adapter_handle; + wr.cq_handle = cq->adapter_handle; + + vq_req_get(c2dev, vq_req); + + err = vq_send_wr(c2dev, (union c2wr *) & wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail1; + } + + err = vq_wait_for_reply(c2dev, vq_req); + if (err) + goto bail1; + + reply = (struct c2wr_cq_destroy_rep *) (unsigned long) (vq_req->reply_msg); + + vq_repbuf_free(c2dev, reply); + bail1: + vq_req_free(c2dev, vq_req); + bail0: + if (cq->is_kernel) { + c2_free_cq_buf(c2dev, &cq->mq); + } + + return; +} diff --git a/drivers/infiniband/hw/amso1100/c2_intr.c b/drivers/infiniband/hw/amso1100/c2_intr.c new file mode 100644 index 00000000000..0d0bc33ca30 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_intr.c @@ -0,0 +1,209 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "c2.h" +#include +#include "c2_vq.h" + +static void handle_mq(struct c2_dev *c2dev, u32 index); +static void handle_vq(struct c2_dev *c2dev, u32 mq_index); + +/* + * Handle RNIC interrupts + */ +void c2_rnic_interrupt(struct c2_dev *c2dev) +{ + unsigned int mq_index; + + while (c2dev->hints_read != be16_to_cpu(*c2dev->hint_count)) { + mq_index = readl(c2dev->regs + PCI_BAR0_HOST_HINT); + if (mq_index & 0x80000000) { + break; + } + + c2dev->hints_read++; + handle_mq(c2dev, mq_index); + } + +} + +/* + * Top level MQ handler + */ +static void handle_mq(struct c2_dev *c2dev, u32 mq_index) +{ + if (c2dev->qptr_array[mq_index] == NULL) { + pr_debug(KERN_INFO "handle_mq: stray activity for mq_index=%d\n", + mq_index); + return; + } + + switch (mq_index) { + case (0): + /* + * An index of 0 in the activity queue + * indicates the req vq now has messages + * available... + * + * Wake up any waiters waiting on req VQ + * message availability. + */ + wake_up(&c2dev->req_vq_wo); + break; + case (1): + handle_vq(c2dev, mq_index); + break; + case (2): + /* We have to purge the VQ in case there are pending + * accept reply requests that would result in the + * generation of an ESTABLISHED event. If we don't + * generate these first, a CLOSE event could end up + * being delivered before the ESTABLISHED event. + */ + handle_vq(c2dev, 1); + + c2_ae_event(c2dev, mq_index); + break; + default: + /* There is no event synchronization between CQ events + * and AE or CM events. In fact, CQE could be + * delivered for all of the I/O up to and including the + * FLUSH for a peer disconenct prior to the ESTABLISHED + * event being delivered to the app. The reason for this + * is that CM events are delivered on a thread, while AE + * and CM events are delivered on interrupt context. + */ + c2_cq_event(c2dev, mq_index); + break; + } + + return; +} + +/* + * Handles verbs WR replies. + */ +static void handle_vq(struct c2_dev *c2dev, u32 mq_index) +{ + void *adapter_msg, *reply_msg; + struct c2wr_hdr *host_msg; + struct c2wr_hdr tmp; + struct c2_mq *reply_vq; + struct c2_vq_req *req; + struct iw_cm_event cm_event; + int err; + + reply_vq = (struct c2_mq *) c2dev->qptr_array[mq_index]; + + /* + * get next msg from mq_index into adapter_msg. + * don't free it yet. + */ + adapter_msg = c2_mq_consume(reply_vq); + if (adapter_msg == NULL) { + return; + } + + host_msg = vq_repbuf_alloc(c2dev); + + /* + * If we can't get a host buffer, then we'll still + * wakeup the waiter, we just won't give him the msg. + * It is assumed the waiter will deal with this... + */ + if (!host_msg) { + pr_debug("handle_vq: no repbufs!\n"); + + /* + * just copy the WR header into a local variable. + * this allows us to still demux on the context + */ + host_msg = &tmp; + memcpy(host_msg, adapter_msg, sizeof(tmp)); + reply_msg = NULL; + } else { + memcpy(host_msg, adapter_msg, reply_vq->msg_size); + reply_msg = host_msg; + } + + /* + * consume the msg from the MQ + */ + c2_mq_free(reply_vq); + + /* + * wakeup the waiter. + */ + req = (struct c2_vq_req *) (unsigned long) host_msg->context; + if (req == NULL) { + /* + * We should never get here, as the adapter should + * never send us a reply that we're not expecting. + */ + vq_repbuf_free(c2dev, host_msg); + pr_debug("handle_vq: UNEXPECTEDLY got NULL req\n"); + return; + } + + err = c2_errno(reply_msg); + if (!err) switch (req->event) { + case IW_CM_EVENT_ESTABLISHED: + c2_set_qp_state(req->qp, + C2_QP_STATE_RTS); + case IW_CM_EVENT_CLOSE: + + /* + * Move the QP to RTS if this is + * the established event + */ + cm_event.event = req->event; + cm_event.status = 0; + cm_event.local_addr = req->cm_id->local_addr; + cm_event.remote_addr = req->cm_id->remote_addr; + cm_event.private_data = NULL; + cm_event.private_data_len = 0; + req->cm_id->event_handler(req->cm_id, &cm_event); + break; + default: + break; + } + + req->reply_msg = (u64) (unsigned long) (reply_msg); + atomic_set(&req->reply_ready, 1); + wake_up(&req->wait_object); + + /* + * If the request was cancelled, then this put will + * free the vq_req memory...and reply_msg!!! + */ + vq_req_put(c2dev, req); +} diff --git a/drivers/infiniband/hw/amso1100/c2_mm.c b/drivers/infiniband/hw/amso1100/c2_mm.c new file mode 100644 index 00000000000..1e4f46493fc --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_mm.c @@ -0,0 +1,375 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "c2.h" +#include "c2_vq.h" + +#define PBL_VIRT 1 +#define PBL_PHYS 2 + +/* + * Send all the PBL messages to convey the remainder of the PBL + * Wait for the adapter's reply on the last one. + * This is indicated by setting the MEM_PBL_COMPLETE in the flags. + * + * NOTE: vq_req is _not_ freed by this function. The VQ Host + * Reply buffer _is_ freed by this function. + */ +static int +send_pbl_messages(struct c2_dev *c2dev, u32 stag_index, + unsigned long va, u32 pbl_depth, + struct c2_vq_req *vq_req, int pbl_type) +{ + u32 pbe_count; /* amt that fits in a PBL msg */ + u32 count; /* amt in this PBL MSG. */ + struct c2wr_nsmr_pbl_req *wr; /* PBL WR ptr */ + struct c2wr_nsmr_pbl_rep *reply; /* reply ptr */ + int err, pbl_virt, pbl_index, i; + + switch (pbl_type) { + case PBL_VIRT: + pbl_virt = 1; + break; + case PBL_PHYS: + pbl_virt = 0; + break; + default: + return -EINVAL; + break; + } + + pbe_count = (c2dev->req_vq.msg_size - + sizeof(struct c2wr_nsmr_pbl_req)) / sizeof(u64); + wr = kmalloc(c2dev->req_vq.msg_size, GFP_KERNEL); + if (!wr) { + return -ENOMEM; + } + c2_wr_set_id(wr, CCWR_NSMR_PBL); + + /* + * Only the last PBL message will generate a reply from the verbs, + * so we set the context to 0 indicating there is no kernel verbs + * handler blocked awaiting this reply. + */ + wr->hdr.context = 0; + wr->rnic_handle = c2dev->adapter_handle; + wr->stag_index = stag_index; /* already swapped */ + wr->flags = 0; + pbl_index = 0; + while (pbl_depth) { + count = min(pbe_count, pbl_depth); + wr->addrs_length = cpu_to_be32(count); + + /* + * If this is the last message, then reference the + * vq request struct cuz we're gonna wait for a reply. + * also make this PBL msg as the last one. + */ + if (count == pbl_depth) { + /* + * reference the request struct. dereferenced in the + * int handler. + */ + vq_req_get(c2dev, vq_req); + wr->flags = cpu_to_be32(MEM_PBL_COMPLETE); + + /* + * This is the last PBL message. + * Set the context to our VQ Request Object so we can + * wait for the reply. + */ + wr->hdr.context = (unsigned long) vq_req; + } + + /* + * If pbl_virt is set then va is a virtual address + * that describes a virtually contiguous memory + * allocation. The wr needs the start of each virtual page + * to be converted to the corresponding physical address + * of the page. If pbl_virt is not set then va is an array + * of physical addresses and there is no conversion to do. + * Just fill in the wr with what is in the array. + */ + for (i = 0; i < count; i++) { + if (pbl_virt) { + va += PAGE_SIZE; + } else { + wr->paddrs[i] = + cpu_to_be64(((u64 *)va)[pbl_index + i]); + } + } + + /* + * Send WR to adapter + */ + err = vq_send_wr(c2dev, (union c2wr *) wr); + if (err) { + if (count <= pbe_count) { + vq_req_put(c2dev, vq_req); + } + goto bail0; + } + pbl_depth -= count; + pbl_index += count; + } + + /* + * Now wait for the reply... + */ + err = vq_wait_for_reply(c2dev, vq_req); + if (err) { + goto bail0; + } + + /* + * Process reply + */ + reply = (struct c2wr_nsmr_pbl_rep *) (unsigned long) vq_req->reply_msg; + if (!reply) { + err = -ENOMEM; + goto bail0; + } + + err = c2_errno(reply); + + vq_repbuf_free(c2dev, reply); + bail0: + kfree(wr); + return err; +} + +#define C2_PBL_MAX_DEPTH 131072 +int +c2_nsmr_register_phys_kern(struct c2_dev *c2dev, u64 *addr_list, + int page_size, int pbl_depth, u32 length, + u32 offset, u64 *va, enum c2_acf acf, + struct c2_mr *mr) +{ + struct c2_vq_req *vq_req; + struct c2wr_nsmr_register_req *wr; + struct c2wr_nsmr_register_rep *reply; + u16 flags; + int i, pbe_count, count; + int err; + + if (!va || !length || !addr_list || !pbl_depth) + return -EINTR; + + /* + * Verify PBL depth is within rnic max + */ + if (pbl_depth > C2_PBL_MAX_DEPTH) { + return -EINTR; + } + + /* + * allocate verbs request object + */ + vq_req = vq_req_alloc(c2dev); + if (!vq_req) + return -ENOMEM; + + wr = kmalloc(c2dev->req_vq.msg_size, GFP_KERNEL); + if (!wr) { + err = -ENOMEM; + goto bail0; + } + + /* + * build the WR + */ + c2_wr_set_id(wr, CCWR_NSMR_REGISTER); + wr->hdr.context = (unsigned long) vq_req; + wr->rnic_handle = c2dev->adapter_handle; + + flags = (acf | MEM_VA_BASED | MEM_REMOTE); + + /* + * compute how many pbes can fit in the message + */ + pbe_count = (c2dev->req_vq.msg_size - + sizeof(struct c2wr_nsmr_register_req)) / sizeof(u64); + + if (pbl_depth <= pbe_count) { + flags |= MEM_PBL_COMPLETE; + } + wr->flags = cpu_to_be16(flags); + wr->stag_key = 0; //stag_key; + wr->va = cpu_to_be64(*va); + wr->pd_id = mr->pd->pd_id; + wr->pbe_size = cpu_to_be32(page_size); + wr->length = cpu_to_be32(length); + wr->pbl_depth = cpu_to_be32(pbl_depth); + wr->fbo = cpu_to_be32(offset); + count = min(pbl_depth, pbe_count); + wr->addrs_length = cpu_to_be32(count); + + /* + * fill out the PBL for this message + */ + for (i = 0; i < count; i++) { + wr->paddrs[i] = cpu_to_be64(addr_list[i]); + } + + /* + * regerence the request struct + */ + vq_req_get(c2dev, vq_req); + + /* + * send the WR to the adapter + */ + err = vq_send_wr(c2dev, (union c2wr *) wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail1; + } + + /* + * wait for reply from adapter + */ + err = vq_wait_for_reply(c2dev, vq_req); + if (err) { + goto bail1; + } + + /* + * process reply + */ + reply = + (struct c2wr_nsmr_register_rep *) (unsigned long) (vq_req->reply_msg); + if (!reply) { + err = -ENOMEM; + goto bail1; + } + if ((err = c2_errno(reply))) { + goto bail2; + } + //*p_pb_entries = be32_to_cpu(reply->pbl_depth); + mr->ibmr.lkey = mr->ibmr.rkey = be32_to_cpu(reply->stag_index); + vq_repbuf_free(c2dev, reply); + + /* + * if there are still more PBEs we need to send them to + * the adapter and wait for a reply on the final one. + * reuse vq_req for this purpose. + */ + pbl_depth -= count; + if (pbl_depth) { + + vq_req->reply_msg = (unsigned long) NULL; + atomic_set(&vq_req->reply_ready, 0); + err = send_pbl_messages(c2dev, + cpu_to_be32(mr->ibmr.lkey), + (unsigned long) &addr_list[i], + pbl_depth, vq_req, PBL_PHYS); + if (err) { + goto bail1; + } + } + + vq_req_free(c2dev, vq_req); + kfree(wr); + + return err; + + bail2: + vq_repbuf_free(c2dev, reply); + bail1: + kfree(wr); + bail0: + vq_req_free(c2dev, vq_req); + return err; +} + +int c2_stag_dealloc(struct c2_dev *c2dev, u32 stag_index) +{ + struct c2_vq_req *vq_req; /* verbs request object */ + struct c2wr_stag_dealloc_req wr; /* work request */ + struct c2wr_stag_dealloc_rep *reply; /* WR reply */ + int err; + + + /* + * allocate verbs request object + */ + vq_req = vq_req_alloc(c2dev); + if (!vq_req) { + return -ENOMEM; + } + + /* + * Build the WR + */ + c2_wr_set_id(&wr, CCWR_STAG_DEALLOC); + wr.hdr.context = (u64) (unsigned long) vq_req; + wr.rnic_handle = c2dev->adapter_handle; + wr.stag_index = cpu_to_be32(stag_index); + + /* + * reference the request struct. dereferenced in the int handler. + */ + vq_req_get(c2dev, vq_req); + + /* + * Send WR to adapter + */ + err = vq_send_wr(c2dev, (union c2wr *) & wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail0; + } + + /* + * Wait for reply from adapter + */ + err = vq_wait_for_reply(c2dev, vq_req); + if (err) { + goto bail0; + } + + /* + * Process reply + */ + reply = (struct c2wr_stag_dealloc_rep *) (unsigned long) vq_req->reply_msg; + if (!reply) { + err = -ENOMEM; + goto bail0; + } + + err = c2_errno(reply); + + vq_repbuf_free(c2dev, reply); + bail0: + vq_req_free(c2dev, vq_req); + return err; +} diff --git a/drivers/infiniband/hw/amso1100/c2_mq.c b/drivers/infiniband/hw/amso1100/c2_mq.c new file mode 100644 index 00000000000..b88a7559210 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_mq.c @@ -0,0 +1,174 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "c2.h" +#include "c2_mq.h" + +void *c2_mq_alloc(struct c2_mq *q) +{ + BUG_ON(q->magic != C2_MQ_MAGIC); + BUG_ON(q->type != C2_MQ_ADAPTER_TARGET); + + if (c2_mq_full(q)) { + return NULL; + } else { +#ifdef DEBUG + struct c2wr_hdr *m = + (struct c2wr_hdr *) (q->msg_pool.host + q->priv * q->msg_size); +#ifdef CCMSGMAGIC + BUG_ON(m->magic != be32_to_cpu(~CCWR_MAGIC)); + m->magic = cpu_to_be32(CCWR_MAGIC); +#endif + return m; +#else + return q->msg_pool.host + q->priv * q->msg_size; +#endif + } +} + +void c2_mq_produce(struct c2_mq *q) +{ + BUG_ON(q->magic != C2_MQ_MAGIC); + BUG_ON(q->type != C2_MQ_ADAPTER_TARGET); + + if (!c2_mq_full(q)) { + q->priv = (q->priv + 1) % q->q_size; + q->hint_count++; + /* Update peer's offset. */ + __raw_writew(cpu_to_be16(q->priv), &q->peer->shared); + } +} + +void *c2_mq_consume(struct c2_mq *q) +{ + BUG_ON(q->magic != C2_MQ_MAGIC); + BUG_ON(q->type != C2_MQ_HOST_TARGET); + + if (c2_mq_empty(q)) { + return NULL; + } else { +#ifdef DEBUG + struct c2wr_hdr *m = (struct c2wr_hdr *) + (q->msg_pool.host + q->priv * q->msg_size); +#ifdef CCMSGMAGIC + BUG_ON(m->magic != be32_to_cpu(CCWR_MAGIC)); +#endif + return m; +#else + return q->msg_pool.host + q->priv * q->msg_size; +#endif + } +} + +void c2_mq_free(struct c2_mq *q) +{ + BUG_ON(q->magic != C2_MQ_MAGIC); + BUG_ON(q->type != C2_MQ_HOST_TARGET); + + if (!c2_mq_empty(q)) { + +#ifdef CCMSGMAGIC + { + struct c2wr_hdr __iomem *m = (struct c2wr_hdr __iomem *) + (q->msg_pool.adapter + q->priv * q->msg_size); + __raw_writel(cpu_to_be32(~CCWR_MAGIC), &m->magic); + } +#endif + q->priv = (q->priv + 1) % q->q_size; + /* Update peer's offset. */ + __raw_writew(cpu_to_be16(q->priv), &q->peer->shared); + } +} + + +void c2_mq_lconsume(struct c2_mq *q, u32 wqe_count) +{ + BUG_ON(q->magic != C2_MQ_MAGIC); + BUG_ON(q->type != C2_MQ_ADAPTER_TARGET); + + while (wqe_count--) { + BUG_ON(c2_mq_empty(q)); + *q->shared = cpu_to_be16((be16_to_cpu(*q->shared)+1) % q->q_size); + } +} + +#if 0 +u32 c2_mq_count(struct c2_mq *q) +{ + s32 count; + + if (q->type == C2_MQ_HOST_TARGET) + count = be16_to_cpu(*q->shared) - q->priv; + else + count = q->priv - be16_to_cpu(*q->shared); + + if (count < 0) + count += q->q_size; + + return (u32) count; +} +#endif /* 0 */ + +void c2_mq_req_init(struct c2_mq *q, u32 index, u32 q_size, u32 msg_size, + u8 __iomem *pool_start, u16 __iomem *peer, u32 type) +{ + BUG_ON(!q->shared); + + /* This code assumes the byte swapping has already been done! */ + q->index = index; + q->q_size = q_size; + q->msg_size = msg_size; + q->msg_pool.adapter = pool_start; + q->peer = (struct c2_mq_shared __iomem *) peer; + q->magic = C2_MQ_MAGIC; + q->type = type; + q->priv = 0; + q->hint_count = 0; + return; +} +void c2_mq_rep_init(struct c2_mq *q, u32 index, u32 q_size, u32 msg_size, + u8 *pool_start, u16 __iomem *peer, u32 type) +{ + BUG_ON(!q->shared); + + /* This code assumes the byte swapping has already been done! */ + q->index = index; + q->q_size = q_size; + q->msg_size = msg_size; + q->msg_pool.host = pool_start; + q->peer = (struct c2_mq_shared __iomem *) peer; + q->magic = C2_MQ_MAGIC; + q->type = type; + q->priv = 0; + q->hint_count = 0; + return; +} diff --git a/drivers/infiniband/hw/amso1100/c2_mq.h b/drivers/infiniband/hw/amso1100/c2_mq.h new file mode 100644 index 00000000000..9185bbb2165 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_mq.h @@ -0,0 +1,106 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef _C2_MQ_H_ +#define _C2_MQ_H_ +#include +#include +#include "c2_wr.h" + +enum c2_shared_regs { + + C2_SHARED_ARMED = 0x10, + C2_SHARED_NOTIFY = 0x18, + C2_SHARED_SHARED = 0x40, +}; + +struct c2_mq_shared { + u16 unused1; + u8 armed; + u8 notification_type; + u32 unused2; + u16 shared; + /* Pad to 64 bytes. */ + u8 pad[64 - sizeof(u16) - 2 * sizeof(u8) - sizeof(u32) - sizeof(u16)]; +}; + +enum c2_mq_type { + C2_MQ_HOST_TARGET = 1, + C2_MQ_ADAPTER_TARGET = 2, +}; + +/* + * c2_mq_t is for kernel-mode MQs like the VQs Cand the AEQ. + * c2_user_mq_t (which is the same format) is for user-mode MQs... + */ +#define C2_MQ_MAGIC 0x4d512020 /* 'MQ ' */ +struct c2_mq { + u32 magic; + union { + u8 *host; + u8 __iomem *adapter; + } msg_pool; + dma_addr_t host_dma; + DECLARE_PCI_UNMAP_ADDR(mapping); + u16 hint_count; + u16 priv; + struct c2_mq_shared __iomem *peer; + u16 *shared; + dma_addr_t shared_dma; + u32 q_size; + u32 msg_size; + u32 index; + enum c2_mq_type type; +}; + +static __inline__ int c2_mq_empty(struct c2_mq *q) +{ + return q->priv == be16_to_cpu(*q->shared); +} + +static __inline__ int c2_mq_full(struct c2_mq *q) +{ + return q->priv == (be16_to_cpu(*q->shared) + q->q_size - 1) % q->q_size; +} + +extern void c2_mq_lconsume(struct c2_mq *q, u32 wqe_count); +extern void *c2_mq_alloc(struct c2_mq *q); +extern void c2_mq_produce(struct c2_mq *q); +extern void *c2_mq_consume(struct c2_mq *q); +extern void c2_mq_free(struct c2_mq *q); +extern void c2_mq_req_init(struct c2_mq *q, u32 index, u32 q_size, u32 msg_size, + u8 __iomem *pool_start, u16 __iomem *peer, u32 type); +extern void c2_mq_rep_init(struct c2_mq *q, u32 index, u32 q_size, u32 msg_size, + u8 *pool_start, u16 __iomem *peer, u32 type); + +#endif /* _C2_MQ_H_ */ diff --git a/drivers/infiniband/hw/amso1100/c2_pd.c b/drivers/infiniband/hw/amso1100/c2_pd.c new file mode 100644 index 00000000000..00c709926c8 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_pd.c @@ -0,0 +1,89 @@ +/* + * Copyright (c) 2004 Topspin Communications. All rights reserved. + * Copyright (c) 2005 Cisco Systems. All rights reserved. + * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include +#include + +#include "c2.h" +#include "c2_provider.h" + +int c2_pd_alloc(struct c2_dev *c2dev, int privileged, struct c2_pd *pd) +{ + u32 obj; + int ret = 0; + + spin_lock(&c2dev->pd_table.lock); + obj = find_next_zero_bit(c2dev->pd_table.table, c2dev->pd_table.max, + c2dev->pd_table.last); + if (obj >= c2dev->pd_table.max) + obj = find_first_zero_bit(c2dev->pd_table.table, + c2dev->pd_table.max); + if (obj < c2dev->pd_table.max) { + pd->pd_id = obj; + __set_bit(obj, c2dev->pd_table.table); + c2dev->pd_table.last = obj+1; + if (c2dev->pd_table.last >= c2dev->pd_table.max) + c2dev->pd_table.last = 0; + } else + ret = -ENOMEM; + spin_unlock(&c2dev->pd_table.lock); + return ret; +} + +void c2_pd_free(struct c2_dev *c2dev, struct c2_pd *pd) +{ + spin_lock(&c2dev->pd_table.lock); + __clear_bit(pd->pd_id, c2dev->pd_table.table); + spin_unlock(&c2dev->pd_table.lock); +} + +int __devinit c2_init_pd_table(struct c2_dev *c2dev) +{ + + c2dev->pd_table.last = 0; + c2dev->pd_table.max = c2dev->props.max_pd; + spin_lock_init(&c2dev->pd_table.lock); + c2dev->pd_table.table = kmalloc(BITS_TO_LONGS(c2dev->props.max_pd) * + sizeof(long), GFP_KERNEL); + if (!c2dev->pd_table.table) + return -ENOMEM; + bitmap_zero(c2dev->pd_table.table, c2dev->props.max_pd); + return 0; +} + +void __devexit c2_cleanup_pd_table(struct c2_dev *c2dev) +{ + kfree(c2dev->pd_table.table); +} diff --git a/drivers/infiniband/hw/amso1100/c2_provider.c b/drivers/infiniband/hw/amso1100/c2_provider.c new file mode 100644 index 00000000000..8fddc8cccdf --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_provider.c @@ -0,0 +1,869 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include "c2.h" +#include "c2_provider.h" +#include "c2_user.h" + +static int c2_query_device(struct ib_device *ibdev, + struct ib_device_attr *props) +{ + struct c2_dev *c2dev = to_c2dev(ibdev); + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + + *props = c2dev->props; + return 0; +} + +static int c2_query_port(struct ib_device *ibdev, + u8 port, struct ib_port_attr *props) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + + props->max_mtu = IB_MTU_4096; + props->lid = 0; + props->lmc = 0; + props->sm_lid = 0; + props->sm_sl = 0; + props->state = IB_PORT_ACTIVE; + props->phys_state = 0; + props->port_cap_flags = + IB_PORT_CM_SUP | + IB_PORT_REINIT_SUP | + IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; + props->gid_tbl_len = 1; + props->pkey_tbl_len = 1; + props->qkey_viol_cntr = 0; + props->active_width = 1; + props->active_speed = 1; + + return 0; +} + +static int c2_modify_port(struct ib_device *ibdev, + u8 port, int port_modify_mask, + struct ib_port_modify *props) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + return 0; +} + +static int c2_query_pkey(struct ib_device *ibdev, + u8 port, u16 index, u16 * pkey) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + *pkey = 0; + return 0; +} + +static int c2_query_gid(struct ib_device *ibdev, u8 port, + int index, union ib_gid *gid) +{ + struct c2_dev *c2dev = to_c2dev(ibdev); + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + memset(&(gid->raw[0]), 0, sizeof(gid->raw)); + memcpy(&(gid->raw[0]), c2dev->pseudo_netdev->dev_addr, 6); + + return 0; +} + +/* Allocate the user context data structure. This keeps track + * of all objects associated with a particular user-mode client. + */ +static struct ib_ucontext *c2_alloc_ucontext(struct ib_device *ibdev, + struct ib_udata *udata) +{ + struct c2_ucontext *context; + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + context = kmalloc(sizeof(*context), GFP_KERNEL); + if (!context) + return ERR_PTR(-ENOMEM); + + return &context->ibucontext; +} + +static int c2_dealloc_ucontext(struct ib_ucontext *context) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + kfree(context); + return 0; +} + +static int c2_mmap_uar(struct ib_ucontext *context, struct vm_area_struct *vma) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + return -ENOSYS; +} + +static struct ib_pd *c2_alloc_pd(struct ib_device *ibdev, + struct ib_ucontext *context, + struct ib_udata *udata) +{ + struct c2_pd *pd; + int err; + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + + pd = kmalloc(sizeof(*pd), GFP_KERNEL); + if (!pd) + return ERR_PTR(-ENOMEM); + + err = c2_pd_alloc(to_c2dev(ibdev), !context, pd); + if (err) { + kfree(pd); + return ERR_PTR(err); + } + + if (context) { + if (ib_copy_to_udata(udata, &pd->pd_id, sizeof(__u32))) { + c2_pd_free(to_c2dev(ibdev), pd); + kfree(pd); + return ERR_PTR(-EFAULT); + } + } + + return &pd->ibpd; +} + +static int c2_dealloc_pd(struct ib_pd *pd) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + c2_pd_free(to_c2dev(pd->device), to_c2pd(pd)); + kfree(pd); + + return 0; +} + +static struct ib_ah *c2_ah_create(struct ib_pd *pd, struct ib_ah_attr *ah_attr) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + return ERR_PTR(-ENOSYS); +} + +static int c2_ah_destroy(struct ib_ah *ah) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + return -ENOSYS; +} + +static void c2_add_ref(struct ib_qp *ibqp) +{ + struct c2_qp *qp; + BUG_ON(!ibqp); + qp = to_c2qp(ibqp); + atomic_inc(&qp->refcount); +} + +static void c2_rem_ref(struct ib_qp *ibqp) +{ + struct c2_qp *qp; + BUG_ON(!ibqp); + qp = to_c2qp(ibqp); + if (atomic_dec_and_test(&qp->refcount)) + wake_up(&qp->wait); +} + +struct ib_qp *c2_get_qp(struct ib_device *device, int qpn) +{ + struct c2_dev* c2dev = to_c2dev(device); + struct c2_qp *qp; + + qp = c2_find_qpn(c2dev, qpn); + pr_debug("%s Returning QP=%p for QPN=%d, device=%p, refcount=%d\n", + __FUNCTION__, qp, qpn, device, + (qp?atomic_read(&qp->refcount):0)); + + return (qp?&qp->ibqp:NULL); +} + +static struct ib_qp *c2_create_qp(struct ib_pd *pd, + struct ib_qp_init_attr *init_attr, + struct ib_udata *udata) +{ + struct c2_qp *qp; + int err; + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + + switch (init_attr->qp_type) { + case IB_QPT_RC: + qp = kzalloc(sizeof(*qp), GFP_KERNEL); + if (!qp) { + pr_debug("%s: Unable to allocate QP\n", __FUNCTION__); + return ERR_PTR(-ENOMEM); + } + spin_lock_init(&qp->lock); + if (pd->uobject) { + /* userspace specific */ + } + + err = c2_alloc_qp(to_c2dev(pd->device), + to_c2pd(pd), init_attr, qp); + + if (err && pd->uobject) { + /* userspace specific */ + } + + break; + default: + pr_debug("%s: Invalid QP type: %d\n", __FUNCTION__, + init_attr->qp_type); + return ERR_PTR(-EINVAL); + break; + } + + if (err) { + kfree(qp); + return ERR_PTR(err); + } + + return &qp->ibqp; +} + +static int c2_destroy_qp(struct ib_qp *ib_qp) +{ + struct c2_qp *qp = to_c2qp(ib_qp); + + pr_debug("%s:%u qp=%p,qp->state=%d\n", + __FUNCTION__, __LINE__,ib_qp,qp->state); + c2_free_qp(to_c2dev(ib_qp->device), qp); + kfree(qp); + return 0; +} + +static struct ib_cq *c2_create_cq(struct ib_device *ibdev, int entries, + struct ib_ucontext *context, + struct ib_udata *udata) +{ + struct c2_cq *cq; + int err; + + cq = kmalloc(sizeof(*cq), GFP_KERNEL); + if (!cq) { + pr_debug("%s: Unable to allocate CQ\n", __FUNCTION__); + return ERR_PTR(-ENOMEM); + } + + err = c2_init_cq(to_c2dev(ibdev), entries, NULL, cq); + if (err) { + pr_debug("%s: error initializing CQ\n", __FUNCTION__); + kfree(cq); + return ERR_PTR(err); + } + + return &cq->ibcq; +} + +static int c2_destroy_cq(struct ib_cq *ib_cq) +{ + struct c2_cq *cq = to_c2cq(ib_cq); + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + + c2_free_cq(to_c2dev(ib_cq->device), cq); + kfree(cq); + + return 0; +} + +static inline u32 c2_convert_access(int acc) +{ + return (acc & IB_ACCESS_REMOTE_WRITE ? C2_ACF_REMOTE_WRITE : 0) | + (acc & IB_ACCESS_REMOTE_READ ? C2_ACF_REMOTE_READ : 0) | + (acc & IB_ACCESS_LOCAL_WRITE ? C2_ACF_LOCAL_WRITE : 0) | + C2_ACF_LOCAL_READ | C2_ACF_WINDOW_BIND; +} + +static struct ib_mr *c2_reg_phys_mr(struct ib_pd *ib_pd, + struct ib_phys_buf *buffer_list, + int num_phys_buf, int acc, u64 * iova_start) +{ + struct c2_mr *mr; + u64 *page_list; + u32 total_len; + int err, i, j, k, page_shift, pbl_depth; + + pbl_depth = 0; + total_len = 0; + + page_shift = PAGE_SHIFT; + /* + * If there is only 1 buffer we assume this could + * be a map of all phy mem...use a 32k page_shift. + */ + if (num_phys_buf == 1) + page_shift += 3; + + for (i = 0; i < num_phys_buf; i++) { + + if (buffer_list[i].addr & ~PAGE_MASK) { + pr_debug("Unaligned Memory Buffer: 0x%x\n", + (unsigned int) buffer_list[i].addr); + return ERR_PTR(-EINVAL); + } + + if (!buffer_list[i].size) { + pr_debug("Invalid Buffer Size\n"); + return ERR_PTR(-EINVAL); + } + + total_len += buffer_list[i].size; + pbl_depth += ALIGN(buffer_list[i].size, + (1 << page_shift)) >> page_shift; + } + + page_list = vmalloc(sizeof(u64) * pbl_depth); + if (!page_list) { + pr_debug("couldn't vmalloc page_list of size %zd\n", + (sizeof(u64) * pbl_depth)); + return ERR_PTR(-ENOMEM); + } + + for (i = 0, j = 0; i < num_phys_buf; i++) { + + int naddrs; + + naddrs = ALIGN(buffer_list[i].size, + (1 << page_shift)) >> page_shift; + for (k = 0; k < naddrs; k++) + page_list[j++] = (buffer_list[i].addr + + (k << page_shift)); + } + + mr = kmalloc(sizeof(*mr), GFP_KERNEL); + if (!mr) + return ERR_PTR(-ENOMEM); + + mr->pd = to_c2pd(ib_pd); + pr_debug("%s - page shift %d, pbl_depth %d, total_len %u, " + "*iova_start %llx, first pa %llx, last pa %llx\n", + __FUNCTION__, page_shift, pbl_depth, total_len, + *iova_start, page_list[0], page_list[pbl_depth-1]); + err = c2_nsmr_register_phys_kern(to_c2dev(ib_pd->device), page_list, + (1 << page_shift), pbl_depth, + total_len, 0, iova_start, + c2_convert_access(acc), mr); + vfree(page_list); + if (err) { + kfree(mr); + return ERR_PTR(err); + } + + return &mr->ibmr; +} + +static struct ib_mr *c2_get_dma_mr(struct ib_pd *pd, int acc) +{ + struct ib_phys_buf bl; + u64 kva = 0; + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + + /* AMSO1100 limit */ + bl.size = 0xffffffff; + bl.addr = 0; + return c2_reg_phys_mr(pd, &bl, 1, acc, &kva); +} + +static struct ib_mr *c2_reg_user_mr(struct ib_pd *pd, struct ib_umem *region, + int acc, struct ib_udata *udata) +{ + u64 *pages; + u64 kva = 0; + int shift, n, len; + int i, j, k; + int err = 0; + struct ib_umem_chunk *chunk; + struct c2_pd *c2pd = to_c2pd(pd); + struct c2_mr *c2mr; + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + shift = ffs(region->page_size) - 1; + + c2mr = kmalloc(sizeof(*c2mr), GFP_KERNEL); + if (!c2mr) + return ERR_PTR(-ENOMEM); + c2mr->pd = c2pd; + + n = 0; + list_for_each_entry(chunk, ®ion->chunk_list, list) + n += chunk->nents; + + pages = kmalloc(n * sizeof(u64), GFP_KERNEL); + if (!pages) { + err = -ENOMEM; + goto err; + } + + i = 0; + list_for_each_entry(chunk, ®ion->chunk_list, list) { + for (j = 0; j < chunk->nmap; ++j) { + len = sg_dma_len(&chunk->page_list[j]) >> shift; + for (k = 0; k < len; ++k) { + pages[i++] = + sg_dma_address(&chunk->page_list[j]) + + (region->page_size * k); + } + } + } + + kva = (u64)region->virt_base; + err = c2_nsmr_register_phys_kern(to_c2dev(pd->device), + pages, + region->page_size, + i, + region->length, + region->offset, + &kva, + c2_convert_access(acc), + c2mr); + kfree(pages); + if (err) { + kfree(c2mr); + return ERR_PTR(err); + } + return &c2mr->ibmr; + +err: + kfree(c2mr); + return ERR_PTR(err); +} + +static int c2_dereg_mr(struct ib_mr *ib_mr) +{ + struct c2_mr *mr = to_c2mr(ib_mr); + int err; + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + + err = c2_stag_dealloc(to_c2dev(ib_mr->device), ib_mr->lkey); + if (err) + pr_debug("c2_stag_dealloc failed: %d\n", err); + else + kfree(mr); + + return err; +} + +static ssize_t show_rev(struct class_device *cdev, char *buf) +{ + struct c2_dev *dev = container_of(cdev, struct c2_dev, ibdev.class_dev); + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + return sprintf(buf, "%x\n", dev->props.hw_ver); +} + +static ssize_t show_fw_ver(struct class_device *cdev, char *buf) +{ + struct c2_dev *dev = container_of(cdev, struct c2_dev, ibdev.class_dev); + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + return sprintf(buf, "%x.%x.%x\n", + (int) (dev->props.fw_ver >> 32), + (int) (dev->props.fw_ver >> 16) & 0xffff, + (int) (dev->props.fw_ver & 0xffff)); +} + +static ssize_t show_hca(struct class_device *cdev, char *buf) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + return sprintf(buf, "AMSO1100\n"); +} + +static ssize_t show_board(struct class_device *cdev, char *buf) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + return sprintf(buf, "%.*s\n", 32, "AMSO1100 Board ID"); +} + +static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); +static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); +static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); +static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); + +static struct class_device_attribute *c2_class_attributes[] = { + &class_device_attr_hw_rev, + &class_device_attr_fw_ver, + &class_device_attr_hca_type, + &class_device_attr_board_id +}; + +static int c2_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, + int attr_mask, struct ib_udata *udata) +{ + int err; + + err = + c2_qp_modify(to_c2dev(ibqp->device), to_c2qp(ibqp), attr, + attr_mask); + + return err; +} + +static int c2_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + return -ENOSYS; +} + +static int c2_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + return -ENOSYS; +} + +static int c2_process_mad(struct ib_device *ibdev, + int mad_flags, + u8 port_num, + struct ib_wc *in_wc, + struct ib_grh *in_grh, + struct ib_mad *in_mad, struct ib_mad *out_mad) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + return -ENOSYS; +} + +static int c2_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + + /* Request a connection */ + return c2_llp_connect(cm_id, iw_param); +} + +static int c2_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *iw_param) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + + /* Accept the new connection */ + return c2_llp_accept(cm_id, iw_param); +} + +static int c2_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len) +{ + int err; + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + + err = c2_llp_reject(cm_id, pdata, pdata_len); + return err; +} + +static int c2_service_create(struct iw_cm_id *cm_id, int backlog) +{ + int err; + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + err = c2_llp_service_create(cm_id, backlog); + pr_debug("%s:%u err=%d\n", + __FUNCTION__, __LINE__, + err); + return err; +} + +static int c2_service_destroy(struct iw_cm_id *cm_id) +{ + int err; + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + + err = c2_llp_service_destroy(cm_id); + + return err; +} + +static int c2_pseudo_up(struct net_device *netdev) +{ + struct in_device *ind; + struct c2_dev *c2dev = netdev->priv; + + ind = in_dev_get(netdev); + if (!ind) + return 0; + + pr_debug("adding...\n"); + for_ifa(ind) { +#ifdef DEBUG + u8 *ip = (u8 *) & ifa->ifa_address; + + pr_debug("%s: %d.%d.%d.%d\n", + ifa->ifa_label, ip[0], ip[1], ip[2], ip[3]); +#endif + c2_add_addr(c2dev, ifa->ifa_address, ifa->ifa_mask); + } + endfor_ifa(ind); + in_dev_put(ind); + + return 0; +} + +static int c2_pseudo_down(struct net_device *netdev) +{ + struct in_device *ind; + struct c2_dev *c2dev = netdev->priv; + + ind = in_dev_get(netdev); + if (!ind) + return 0; + + pr_debug("deleting...\n"); + for_ifa(ind) { +#ifdef DEBUG + u8 *ip = (u8 *) & ifa->ifa_address; + + pr_debug("%s: %d.%d.%d.%d\n", + ifa->ifa_label, ip[0], ip[1], ip[2], ip[3]); +#endif + c2_del_addr(c2dev, ifa->ifa_address, ifa->ifa_mask); + } + endfor_ifa(ind); + in_dev_put(ind); + + return 0; +} + +static int c2_pseudo_xmit_frame(struct sk_buff *skb, struct net_device *netdev) +{ + kfree_skb(skb); + return NETDEV_TX_OK; +} + +static int c2_pseudo_change_mtu(struct net_device *netdev, int new_mtu) +{ + int ret = 0; + + if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU) + return -EINVAL; + + netdev->mtu = new_mtu; + + /* TODO: Tell rnic about new rmda interface mtu */ + return ret; +} + +static void setup(struct net_device *netdev) +{ + SET_MODULE_OWNER(netdev); + netdev->open = c2_pseudo_up; + netdev->stop = c2_pseudo_down; + netdev->hard_start_xmit = c2_pseudo_xmit_frame; + netdev->get_stats = NULL; + netdev->tx_timeout = NULL; + netdev->set_mac_address = NULL; + netdev->change_mtu = c2_pseudo_change_mtu; + netdev->watchdog_timeo = 0; + netdev->type = ARPHRD_ETHER; + netdev->mtu = 1500; + netdev->hard_header_len = ETH_HLEN; + netdev->addr_len = ETH_ALEN; + netdev->tx_queue_len = 0; + netdev->flags |= IFF_NOARP; + return; +} + +static struct net_device *c2_pseudo_netdev_init(struct c2_dev *c2dev) +{ + char name[IFNAMSIZ]; + struct net_device *netdev; + + /* change ethxxx to iwxxx */ + strcpy(name, "iw"); + strcat(name, &c2dev->netdev->name[3]); + netdev = alloc_netdev(sizeof(*netdev), name, setup); + if (!netdev) { + printk(KERN_ERR PFX "%s - etherdev alloc failed", + __FUNCTION__); + return NULL; + } + + netdev->priv = c2dev; + + SET_NETDEV_DEV(netdev, &c2dev->pcidev->dev); + + memcpy_fromio(netdev->dev_addr, c2dev->kva + C2_REGS_RDMA_ENADDR, 6); + + /* Print out the MAC address */ + pr_debug("%s: MAC %02X:%02X:%02X:%02X:%02X:%02X\n", + netdev->name, + netdev->dev_addr[0], netdev->dev_addr[1], netdev->dev_addr[2], + netdev->dev_addr[3], netdev->dev_addr[4], netdev->dev_addr[5]); + +#if 0 + /* Disable network packets */ + netif_stop_queue(netdev); +#endif + return netdev; +} + +int c2_register_device(struct c2_dev *dev) +{ + int ret; + int i; + + /* Register pseudo network device */ + dev->pseudo_netdev = c2_pseudo_netdev_init(dev); + if (dev->pseudo_netdev) { + ret = register_netdev(dev->pseudo_netdev); + if (ret) { + printk(KERN_ERR PFX + "Unable to register netdev, ret = %d\n", ret); + free_netdev(dev->pseudo_netdev); + return ret; + } + } + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + strlcpy(dev->ibdev.name, "amso%d", IB_DEVICE_NAME_MAX); + dev->ibdev.owner = THIS_MODULE; + dev->ibdev.uverbs_cmd_mask = + (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | + (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | + (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | + (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | + (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | + (1ull << IB_USER_VERBS_CMD_REG_MR) | + (1ull << IB_USER_VERBS_CMD_DEREG_MR) | + (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | + (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | + (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | + (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | + (1ull << IB_USER_VERBS_CMD_CREATE_QP) | + (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | + (1ull << IB_USER_VERBS_CMD_POLL_CQ) | + (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | + (1ull << IB_USER_VERBS_CMD_POST_SEND) | + (1ull << IB_USER_VERBS_CMD_POST_RECV); + + dev->ibdev.node_type = RDMA_NODE_RNIC; + memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); + memcpy(&dev->ibdev.node_guid, dev->pseudo_netdev->dev_addr, 6); + dev->ibdev.phys_port_cnt = 1; + dev->ibdev.dma_device = &dev->pcidev->dev; + dev->ibdev.class_dev.dev = &dev->pcidev->dev; + dev->ibdev.query_device = c2_query_device; + dev->ibdev.query_port = c2_query_port; + dev->ibdev.modify_port = c2_modify_port; + dev->ibdev.query_pkey = c2_query_pkey; + dev->ibdev.query_gid = c2_query_gid; + dev->ibdev.alloc_ucontext = c2_alloc_ucontext; + dev->ibdev.dealloc_ucontext = c2_dealloc_ucontext; + dev->ibdev.mmap = c2_mmap_uar; + dev->ibdev.alloc_pd = c2_alloc_pd; + dev->ibdev.dealloc_pd = c2_dealloc_pd; + dev->ibdev.create_ah = c2_ah_create; + dev->ibdev.destroy_ah = c2_ah_destroy; + dev->ibdev.create_qp = c2_create_qp; + dev->ibdev.modify_qp = c2_modify_qp; + dev->ibdev.destroy_qp = c2_destroy_qp; + dev->ibdev.create_cq = c2_create_cq; + dev->ibdev.destroy_cq = c2_destroy_cq; + dev->ibdev.poll_cq = c2_poll_cq; + dev->ibdev.get_dma_mr = c2_get_dma_mr; + dev->ibdev.reg_phys_mr = c2_reg_phys_mr; + dev->ibdev.reg_user_mr = c2_reg_user_mr; + dev->ibdev.dereg_mr = c2_dereg_mr; + + dev->ibdev.alloc_fmr = NULL; + dev->ibdev.unmap_fmr = NULL; + dev->ibdev.dealloc_fmr = NULL; + dev->ibdev.map_phys_fmr = NULL; + + dev->ibdev.attach_mcast = c2_multicast_attach; + dev->ibdev.detach_mcast = c2_multicast_detach; + dev->ibdev.process_mad = c2_process_mad; + + dev->ibdev.req_notify_cq = c2_arm_cq; + dev->ibdev.post_send = c2_post_send; + dev->ibdev.post_recv = c2_post_receive; + + dev->ibdev.iwcm = kmalloc(sizeof(*dev->ibdev.iwcm), GFP_KERNEL); + dev->ibdev.iwcm->add_ref = c2_add_ref; + dev->ibdev.iwcm->rem_ref = c2_rem_ref; + dev->ibdev.iwcm->get_qp = c2_get_qp; + dev->ibdev.iwcm->connect = c2_connect; + dev->ibdev.iwcm->accept = c2_accept; + dev->ibdev.iwcm->reject = c2_reject; + dev->ibdev.iwcm->create_listen = c2_service_create; + dev->ibdev.iwcm->destroy_listen = c2_service_destroy; + + ret = ib_register_device(&dev->ibdev); + if (ret) + return ret; + + for (i = 0; i < ARRAY_SIZE(c2_class_attributes); ++i) { + ret = class_device_create_file(&dev->ibdev.class_dev, + c2_class_attributes[i]); + if (ret) { + unregister_netdev(dev->pseudo_netdev); + free_netdev(dev->pseudo_netdev); + ib_unregister_device(&dev->ibdev); + return ret; + } + } + + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + return 0; +} + +void c2_unregister_device(struct c2_dev *dev) +{ + pr_debug("%s:%u\n", __FUNCTION__, __LINE__); + unregister_netdev(dev->pseudo_netdev); + free_netdev(dev->pseudo_netdev); + ib_unregister_device(&dev->ibdev); +} diff --git a/drivers/infiniband/hw/amso1100/c2_provider.h b/drivers/infiniband/hw/amso1100/c2_provider.h new file mode 100644 index 00000000000..fc906223220 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_provider.h @@ -0,0 +1,181 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#ifndef C2_PROVIDER_H +#define C2_PROVIDER_H +#include + +#include +#include + +#include "c2_mq.h" +#include + +#define C2_MPT_FLAG_ATOMIC (1 << 14) +#define C2_MPT_FLAG_REMOTE_WRITE (1 << 13) +#define C2_MPT_FLAG_REMOTE_READ (1 << 12) +#define C2_MPT_FLAG_LOCAL_WRITE (1 << 11) +#define C2_MPT_FLAG_LOCAL_READ (1 << 10) + +struct c2_buf_list { + void *buf; + DECLARE_PCI_UNMAP_ADDR(mapping) +}; + + +/* The user context keeps track of objects allocated for a + * particular user-mode client. */ +struct c2_ucontext { + struct ib_ucontext ibucontext; +}; + +struct c2_mtt; + +/* All objects associated with a PD are kept in the + * associated user context if present. + */ +struct c2_pd { + struct ib_pd ibpd; + u32 pd_id; +}; + +struct c2_mr { + struct ib_mr ibmr; + struct c2_pd *pd; +}; + +struct c2_av; + +enum c2_ah_type { + C2_AH_ON_HCA, + C2_AH_PCI_POOL, + C2_AH_KMALLOC +}; + +struct c2_ah { + struct ib_ah ibah; +}; + +struct c2_cq { + struct ib_cq ibcq; + spinlock_t lock; + atomic_t refcount; + int cqn; + int is_kernel; + wait_queue_head_t wait; + + u32 adapter_handle; + struct c2_mq mq; +}; + +struct c2_wq { + spinlock_t lock; +}; +struct iw_cm_id; +struct c2_qp { + struct ib_qp ibqp; + struct iw_cm_id *cm_id; + spinlock_t lock; + atomic_t refcount; + wait_queue_head_t wait; + int qpn; + + u32 adapter_handle; + u32 send_sgl_depth; + u32 recv_sgl_depth; + u32 rdma_write_sgl_depth; + u8 state; + + struct c2_mq sq_mq; + struct c2_mq rq_mq; +}; + +struct c2_cr_query_attrs { + u32 local_addr; + u32 remote_addr; + u16 local_port; + u16 remote_port; +}; + +static inline struct c2_pd *to_c2pd(struct ib_pd *ibpd) +{ + return container_of(ibpd, struct c2_pd, ibpd); +} + +static inline struct c2_ucontext *to_c2ucontext(struct ib_ucontext *ibucontext) +{ + return container_of(ibucontext, struct c2_ucontext, ibucontext); +} + +static inline struct c2_mr *to_c2mr(struct ib_mr *ibmr) +{ + return container_of(ibmr, struct c2_mr, ibmr); +} + + +static inline struct c2_ah *to_c2ah(struct ib_ah *ibah) +{ + return container_of(ibah, struct c2_ah, ibah); +} + +static inline struct c2_cq *to_c2cq(struct ib_cq *ibcq) +{ + return container_of(ibcq, struct c2_cq, ibcq); +} + +static inline struct c2_qp *to_c2qp(struct ib_qp *ibqp) +{ + return container_of(ibqp, struct c2_qp, ibqp); +} + +static inline int is_rnic_addr(struct net_device *netdev, u32 addr) +{ + struct in_device *ind; + int ret = 0; + + ind = in_dev_get(netdev); + if (!ind) + return 0; + + for_ifa(ind) { + if (ifa->ifa_address == addr) { + ret = 1; + break; + } + } + endfor_ifa(ind); + in_dev_put(ind); + return ret; +} +#endif /* C2_PROVIDER_H */ diff --git a/drivers/infiniband/hw/amso1100/c2_qp.c b/drivers/infiniband/hw/amso1100/c2_qp.c new file mode 100644 index 00000000000..12261132b07 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_qp.c @@ -0,0 +1,975 @@ +/* + * Copyright (c) 2004 Topspin Communications. All rights reserved. + * Copyright (c) 2005 Cisco Systems. All rights reserved. + * Copyright (c) 2005 Mellanox Technologies. All rights reserved. + * Copyright (c) 2004 Voltaire, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#include "c2.h" +#include "c2_vq.h" +#include "c2_status.h" + +#define C2_MAX_ORD_PER_QP 128 +#define C2_MAX_IRD_PER_QP 128 + +#define C2_HINT_MAKE(q_index, hint_count) (((q_index) << 16) | hint_count) +#define C2_HINT_GET_INDEX(hint) (((hint) & 0x7FFF0000) >> 16) +#define C2_HINT_GET_COUNT(hint) ((hint) & 0x0000FFFF) + +#define NO_SUPPORT -1 +static const u8 c2_opcode[] = { + [IB_WR_SEND] = C2_WR_TYPE_SEND, + [IB_WR_SEND_WITH_IMM] = NO_SUPPORT, + [IB_WR_RDMA_WRITE] = C2_WR_TYPE_RDMA_WRITE, + [IB_WR_RDMA_WRITE_WITH_IMM] = NO_SUPPORT, + [IB_WR_RDMA_READ] = C2_WR_TYPE_RDMA_READ, + [IB_WR_ATOMIC_CMP_AND_SWP] = NO_SUPPORT, + [IB_WR_ATOMIC_FETCH_AND_ADD] = NO_SUPPORT, +}; + +static int to_c2_state(enum ib_qp_state ib_state) +{ + switch (ib_state) { + case IB_QPS_RESET: + return C2_QP_STATE_IDLE; + case IB_QPS_RTS: + return C2_QP_STATE_RTS; + case IB_QPS_SQD: + return C2_QP_STATE_CLOSING; + case IB_QPS_SQE: + return C2_QP_STATE_CLOSING; + case IB_QPS_ERR: + return C2_QP_STATE_ERROR; + default: + return -1; + } +} + +static int to_ib_state(enum c2_qp_state c2_state) +{ + switch (c2_state) { + case C2_QP_STATE_IDLE: + return IB_QPS_RESET; + case C2_QP_STATE_CONNECTING: + return IB_QPS_RTR; + case C2_QP_STATE_RTS: + return IB_QPS_RTS; + case C2_QP_STATE_CLOSING: + return IB_QPS_SQD; + case C2_QP_STATE_ERROR: + return IB_QPS_ERR; + case C2_QP_STATE_TERMINATE: + return IB_QPS_SQE; + default: + return -1; + } +} + +static const char *to_ib_state_str(int ib_state) +{ + static const char *state_str[] = { + "IB_QPS_RESET", + "IB_QPS_INIT", + "IB_QPS_RTR", + "IB_QPS_RTS", + "IB_QPS_SQD", + "IB_QPS_SQE", + "IB_QPS_ERR" + }; + if (ib_state < IB_QPS_RESET || + ib_state > IB_QPS_ERR) + return ""; + + ib_state -= IB_QPS_RESET; + return state_str[ib_state]; +} + +void c2_set_qp_state(struct c2_qp *qp, int c2_state) +{ + int new_state = to_ib_state(c2_state); + + pr_debug("%s: qp[%p] state modify %s --> %s\n", + __FUNCTION__, + qp, + to_ib_state_str(qp->state), + to_ib_state_str(new_state)); + qp->state = new_state; +} + +#define C2_QP_NO_ATTR_CHANGE 0xFFFFFFFF + +int c2_qp_modify(struct c2_dev *c2dev, struct c2_qp *qp, + struct ib_qp_attr *attr, int attr_mask) +{ + struct c2wr_qp_modify_req wr; + struct c2wr_qp_modify_rep *reply; + struct c2_vq_req *vq_req; + unsigned long flags; + u8 next_state; + int err; + + pr_debug("%s:%d qp=%p, %s --> %s\n", + __FUNCTION__, __LINE__, + qp, + to_ib_state_str(qp->state), + to_ib_state_str(attr->qp_state)); + + vq_req = vq_req_alloc(c2dev); + if (!vq_req) + return -ENOMEM; + + c2_wr_set_id(&wr, CCWR_QP_MODIFY); + wr.hdr.context = (unsigned long) vq_req; + wr.rnic_handle = c2dev->adapter_handle; + wr.qp_handle = qp->adapter_handle; + wr.ord = cpu_to_be32(C2_QP_NO_ATTR_CHANGE); + wr.ird = cpu_to_be32(C2_QP_NO_ATTR_CHANGE); + wr.sq_depth = cpu_to_be32(C2_QP_NO_ATTR_CHANGE); + wr.rq_depth = cpu_to_be32(C2_QP_NO_ATTR_CHANGE); + + if (attr_mask & IB_QP_STATE) { + /* Ensure the state is valid */ + if (attr->qp_state < 0 || attr->qp_state > IB_QPS_ERR) + return -EINVAL; + + wr.next_qp_state = cpu_to_be32(to_c2_state(attr->qp_state)); + + if (attr->qp_state == IB_QPS_ERR) { + spin_lock_irqsave(&qp->lock, flags); + if (qp->cm_id && qp->state == IB_QPS_RTS) { + pr_debug("Generating CLOSE event for QP-->ERR, " + "qp=%p, cm_id=%p\n",qp,qp->cm_id); + /* Generate an CLOSE event */ + vq_req->cm_id = qp->cm_id; + vq_req->event = IW_CM_EVENT_CLOSE; + } + spin_unlock_irqrestore(&qp->lock, flags); + } + next_state = attr->qp_state; + + } else if (attr_mask & IB_QP_CUR_STATE) { + + if (attr->cur_qp_state != IB_QPS_RTR && + attr->cur_qp_state != IB_QPS_RTS && + attr->cur_qp_state != IB_QPS_SQD && + attr->cur_qp_state != IB_QPS_SQE) + return -EINVAL; + else + wr.next_qp_state = + cpu_to_be32(to_c2_state(attr->cur_qp_state)); + + next_state = attr->cur_qp_state; + + } else { + err = 0; + goto bail0; + } + + /* reference the request struct */ + vq_req_get(c2dev, vq_req); + + err = vq_send_wr(c2dev, (union c2wr *) & wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail0; + } + + err = vq_wait_for_reply(c2dev, vq_req); + if (err) + goto bail0; + + reply = (struct c2wr_qp_modify_rep *) (unsigned long) vq_req->reply_msg; + if (!reply) { + err = -ENOMEM; + goto bail0; + } + + err = c2_errno(reply); + if (!err) + qp->state = next_state; +#ifdef DEBUG + else + pr_debug("%s: c2_errno=%d\n", __FUNCTION__, err); +#endif + /* + * If we're going to error and generating the event here, then + * we need to remove the reference because there will be no + * close event generated by the adapter + */ + spin_lock_irqsave(&qp->lock, flags); + if (vq_req->event==IW_CM_EVENT_CLOSE && qp->cm_id) { + qp->cm_id->rem_ref(qp->cm_id); + qp->cm_id = NULL; + } + spin_unlock_irqrestore(&qp->lock, flags); + + vq_repbuf_free(c2dev, reply); + bail0: + vq_req_free(c2dev, vq_req); + + pr_debug("%s:%d qp=%p, cur_state=%s\n", + __FUNCTION__, __LINE__, + qp, + to_ib_state_str(qp->state)); + return err; +} + +int c2_qp_set_read_limits(struct c2_dev *c2dev, struct c2_qp *qp, + int ord, int ird) +{ + struct c2wr_qp_modify_req wr; + struct c2wr_qp_modify_rep *reply; + struct c2_vq_req *vq_req; + int err; + + vq_req = vq_req_alloc(c2dev); + if (!vq_req) + return -ENOMEM; + + c2_wr_set_id(&wr, CCWR_QP_MODIFY); + wr.hdr.context = (unsigned long) vq_req; + wr.rnic_handle = c2dev->adapter_handle; + wr.qp_handle = qp->adapter_handle; + wr.ord = cpu_to_be32(ord); + wr.ird = cpu_to_be32(ird); + wr.sq_depth = cpu_to_be32(C2_QP_NO_ATTR_CHANGE); + wr.rq_depth = cpu_to_be32(C2_QP_NO_ATTR_CHANGE); + wr.next_qp_state = cpu_to_be32(C2_QP_NO_ATTR_CHANGE); + + /* reference the request struct */ + vq_req_get(c2dev, vq_req); + + err = vq_send_wr(c2dev, (union c2wr *) & wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail0; + } + + err = vq_wait_for_reply(c2dev, vq_req); + if (err) + goto bail0; + + reply = (struct c2wr_qp_modify_rep *) (unsigned long) + vq_req->reply_msg; + if (!reply) { + err = -ENOMEM; + goto bail0; + } + + err = c2_errno(reply); + vq_repbuf_free(c2dev, reply); + bail0: + vq_req_free(c2dev, vq_req); + return err; +} + +static int destroy_qp(struct c2_dev *c2dev, struct c2_qp *qp) +{ + struct c2_vq_req *vq_req; + struct c2wr_qp_destroy_req wr; + struct c2wr_qp_destroy_rep *reply; + unsigned long flags; + int err; + + /* + * Allocate a verb request message + */ + vq_req = vq_req_alloc(c2dev); + if (!vq_req) { + return -ENOMEM; + } + + /* + * Initialize the WR + */ + c2_wr_set_id(&wr, CCWR_QP_DESTROY); + wr.hdr.context = (unsigned long) vq_req; + wr.rnic_handle = c2dev->adapter_handle; + wr.qp_handle = qp->adapter_handle; + + /* + * reference the request struct. dereferenced in the int handler. + */ + vq_req_get(c2dev, vq_req); + + spin_lock_irqsave(&qp->lock, flags); + if (qp->cm_id && qp->state == IB_QPS_RTS) { + pr_debug("destroy_qp: generating CLOSE event for QP-->ERR, " + "qp=%p, cm_id=%p\n",qp,qp->cm_id); + /* Generate an CLOSE event */ + vq_req->qp = qp; + vq_req->cm_id = qp->cm_id; + vq_req->event = IW_CM_EVENT_CLOSE; + } + spin_unlock_irqrestore(&qp->lock, flags); + + /* + * Send WR to adapter + */ + err = vq_send_wr(c2dev, (union c2wr *) & wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail0; + } + + /* + * Wait for reply from adapter + */ + err = vq_wait_for_reply(c2dev, vq_req); + if (err) { + goto bail0; + } + + /* + * Process reply + */ + reply = (struct c2wr_qp_destroy_rep *) (unsigned long) (vq_req->reply_msg); + if (!reply) { + err = -ENOMEM; + goto bail0; + } + + spin_lock_irqsave(&qp->lock, flags); + if (qp->cm_id) { + qp->cm_id->rem_ref(qp->cm_id); + qp->cm_id = NULL; + } + spin_unlock_irqrestore(&qp->lock, flags); + + vq_repbuf_free(c2dev, reply); + bail0: + vq_req_free(c2dev, vq_req); + return err; +} + +static int c2_alloc_qpn(struct c2_dev *c2dev, struct c2_qp *qp) +{ + int ret; + + do { + spin_lock_irq(&c2dev->qp_table.lock); + ret = idr_get_new_above(&c2dev->qp_table.idr, qp, + c2dev->qp_table.last++, &qp->qpn); + spin_unlock_irq(&c2dev->qp_table.lock); + } while ((ret == -EAGAIN) && + idr_pre_get(&c2dev->qp_table.idr, GFP_KERNEL)); + return ret; +} + +static void c2_free_qpn(struct c2_dev *c2dev, int qpn) +{ + spin_lock_irq(&c2dev->qp_table.lock); + idr_remove(&c2dev->qp_table.idr, qpn); + spin_unlock_irq(&c2dev->qp_table.lock); +} + +struct c2_qp *c2_find_qpn(struct c2_dev *c2dev, int qpn) +{ + unsigned long flags; + struct c2_qp *qp; + + spin_lock_irqsave(&c2dev->qp_table.lock, flags); + qp = idr_find(&c2dev->qp_table.idr, qpn); + spin_unlock_irqrestore(&c2dev->qp_table.lock, flags); + return qp; +} + +int c2_alloc_qp(struct c2_dev *c2dev, + struct c2_pd *pd, + struct ib_qp_init_attr *qp_attrs, struct c2_qp *qp) +{ + struct c2wr_qp_create_req wr; + struct c2wr_qp_create_rep *reply; + struct c2_vq_req *vq_req; + struct c2_cq *send_cq = to_c2cq(qp_attrs->send_cq); + struct c2_cq *recv_cq = to_c2cq(qp_attrs->recv_cq); + unsigned long peer_pa; + u32 q_size, msg_size, mmap_size; + void __iomem *mmap; + int err; + + err = c2_alloc_qpn(c2dev, qp); + if (err) + return err; + qp->ibqp.qp_num = qp->qpn; + qp->ibqp.qp_type = IB_QPT_RC; + + /* Allocate the SQ and RQ shared pointers */ + qp->sq_mq.shared = c2_alloc_mqsp(c2dev, c2dev->kern_mqsp_pool, + &qp->sq_mq.shared_dma, GFP_KERNEL); + if (!qp->sq_mq.shared) { + err = -ENOMEM; + goto bail0; + } + + qp->rq_mq.shared = c2_alloc_mqsp(c2dev, c2dev->kern_mqsp_pool, + &qp->rq_mq.shared_dma, GFP_KERNEL); + if (!qp->rq_mq.shared) { + err = -ENOMEM; + goto bail1; + } + + /* Allocate the verbs request */ + vq_req = vq_req_alloc(c2dev); + if (vq_req == NULL) { + err = -ENOMEM; + goto bail2; + } + + /* Initialize the work request */ + memset(&wr, 0, sizeof(wr)); + c2_wr_set_id(&wr, CCWR_QP_CREATE); + wr.hdr.context = (unsigned long) vq_req; + wr.rnic_handle = c2dev->adapter_handle; + wr.sq_cq_handle = send_cq->adapter_handle; + wr.rq_cq_handle = recv_cq->adapter_handle; + wr.sq_depth = cpu_to_be32(qp_attrs->cap.max_send_wr + 1); + wr.rq_depth = cpu_to_be32(qp_attrs->cap.max_recv_wr + 1); + wr.srq_handle = 0; + wr.flags = cpu_to_be32(QP_RDMA_READ | QP_RDMA_WRITE | QP_MW_BIND | + QP_ZERO_STAG | QP_RDMA_READ_RESPONSE); + wr.send_sgl_depth = cpu_to_be32(qp_attrs->cap.max_send_sge); + wr.recv_sgl_depth = cpu_to_be32(qp_attrs->cap.max_recv_sge); + wr.rdma_write_sgl_depth = cpu_to_be32(qp_attrs->cap.max_send_sge); + wr.shared_sq_ht = cpu_to_be64(qp->sq_mq.shared_dma); + wr.shared_rq_ht = cpu_to_be64(qp->rq_mq.shared_dma); + wr.ord = cpu_to_be32(C2_MAX_ORD_PER_QP); + wr.ird = cpu_to_be32(C2_MAX_IRD_PER_QP); + wr.pd_id = pd->pd_id; + wr.user_context = (unsigned long) qp; + + vq_req_get(c2dev, vq_req); + + /* Send the WR to the adapter */ + err = vq_send_wr(c2dev, (union c2wr *) & wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail3; + } + + /* Wait for the verb reply */ + err = vq_wait_for_reply(c2dev, vq_req); + if (err) { + goto bail3; + } + + /* Process the reply */ + reply = (struct c2wr_qp_create_rep *) (unsigned long) (vq_req->reply_msg); + if (!reply) { + err = -ENOMEM; + goto bail3; + } + + if ((err = c2_wr_get_result(reply)) != 0) { + goto bail4; + } + + /* Fill in the kernel QP struct */ + atomic_set(&qp->refcount, 1); + qp->adapter_handle = reply->qp_handle; + qp->state = IB_QPS_RESET; + qp->send_sgl_depth = qp_attrs->cap.max_send_sge; + qp->rdma_write_sgl_depth = qp_attrs->cap.max_send_sge; + qp->recv_sgl_depth = qp_attrs->cap.max_recv_sge; + + /* Initialize the SQ MQ */ + q_size = be32_to_cpu(reply->sq_depth); + msg_size = be32_to_cpu(reply->sq_msg_size); + peer_pa = c2dev->pa + be32_to_cpu(reply->sq_mq_start); + mmap_size = PAGE_ALIGN(sizeof(struct c2_mq_shared) + msg_size * q_size); + mmap = ioremap_nocache(peer_pa, mmap_size); + if (!mmap) { + err = -ENOMEM; + goto bail5; + } + + c2_mq_req_init(&qp->sq_mq, + be32_to_cpu(reply->sq_mq_index), + q_size, + msg_size, + mmap + sizeof(struct c2_mq_shared), /* pool start */ + mmap, /* peer */ + C2_MQ_ADAPTER_TARGET); + + /* Initialize the RQ mq */ + q_size = be32_to_cpu(reply->rq_depth); + msg_size = be32_to_cpu(reply->rq_msg_size); + peer_pa = c2dev->pa + be32_to_cpu(reply->rq_mq_start); + mmap_size = PAGE_ALIGN(sizeof(struct c2_mq_shared) + msg_size * q_size); + mmap = ioremap_nocache(peer_pa, mmap_size); + if (!mmap) { + err = -ENOMEM; + goto bail6; + } + + c2_mq_req_init(&qp->rq_mq, + be32_to_cpu(reply->rq_mq_index), + q_size, + msg_size, + mmap + sizeof(struct c2_mq_shared), /* pool start */ + mmap, /* peer */ + C2_MQ_ADAPTER_TARGET); + + vq_repbuf_free(c2dev, reply); + vq_req_free(c2dev, vq_req); + + return 0; + + bail6: + iounmap(qp->sq_mq.peer); + bail5: + destroy_qp(c2dev, qp); + bail4: + vq_repbuf_free(c2dev, reply); + bail3: + vq_req_free(c2dev, vq_req); + bail2: + c2_free_mqsp(qp->rq_mq.shared); + bail1: + c2_free_mqsp(qp->sq_mq.shared); + bail0: + c2_free_qpn(c2dev, qp->qpn); + return err; +} + +void c2_free_qp(struct c2_dev *c2dev, struct c2_qp *qp) +{ + struct c2_cq *send_cq; + struct c2_cq *recv_cq; + + send_cq = to_c2cq(qp->ibqp.send_cq); + recv_cq = to_c2cq(qp->ibqp.recv_cq); + + /* + * Lock CQs here, so that CQ polling code can do QP lookup + * without taking a lock. + */ + spin_lock_irq(&send_cq->lock); + if (send_cq != recv_cq) + spin_lock(&recv_cq->lock); + + c2_free_qpn(c2dev, qp->qpn); + + if (send_cq != recv_cq) + spin_unlock(&recv_cq->lock); + spin_unlock_irq(&send_cq->lock); + + /* + * Destory qp in the rnic... + */ + destroy_qp(c2dev, qp); + + /* + * Mark any unreaped CQEs as null and void. + */ + c2_cq_clean(c2dev, qp, send_cq->cqn); + if (send_cq != recv_cq) + c2_cq_clean(c2dev, qp, recv_cq->cqn); + /* + * Unmap the MQs and return the shared pointers + * to the message pool. + */ + iounmap(qp->sq_mq.peer); + iounmap(qp->rq_mq.peer); + c2_free_mqsp(qp->sq_mq.shared); + c2_free_mqsp(qp->rq_mq.shared); + + atomic_dec(&qp->refcount); + wait_event(qp->wait, !atomic_read(&qp->refcount)); +} + +/* + * Function: move_sgl + * + * Description: + * Move an SGL from the user's work request struct into a CCIL Work Request + * message, swapping to WR byte order and ensure the total length doesn't + * overflow. + * + * IN: + * dst - ptr to CCIL Work Request message SGL memory. + * src - ptr to the consumers SGL memory. + * + * OUT: none + * + * Return: + * CCIL status codes. + */ +static int +move_sgl(struct c2_data_addr * dst, struct ib_sge *src, int count, u32 * p_len, + u8 * actual_count) +{ + u32 tot = 0; /* running total */ + u8 acount = 0; /* running total non-0 len sge's */ + + while (count > 0) { + /* + * If the addition of this SGE causes the + * total SGL length to exceed 2^32-1, then + * fail-n-bail. + * + * If the current total plus the next element length + * wraps, then it will go negative and be less than the + * current total... + */ + if ((tot + src->length) < tot) { + return -EINVAL; + } + /* + * Bug: 1456 (as well as 1498 & 1643) + * Skip over any sge's supplied with len=0 + */ + if (src->length) { + tot += src->length; + dst->stag = cpu_to_be32(src->lkey); + dst->to = cpu_to_be64(src->addr); + dst->length = cpu_to_be32(src->length); + dst++; + acount++; + } + src++; + count--; + } + + if (acount == 0) { + /* + * Bug: 1476 (as well as 1498, 1456 and 1643) + * Setup the SGL in the WR to make it easier for the RNIC. + * This way, the FW doesn't have to deal with special cases. + * Setting length=0 should be sufficient. + */ + dst->stag = 0; + dst->to = 0; + dst->length = 0; + } + + *p_len = tot; + *actual_count = acount; + return 0; +} + +/* + * Function: c2_activity (private function) + * + * Description: + * Post an mq index to the host->adapter activity fifo. + * + * IN: + * c2dev - ptr to c2dev structure + * mq_index - mq index to post + * shared - value most recently written to shared + * + * OUT: + * + * Return: + * none + */ +static inline void c2_activity(struct c2_dev *c2dev, u32 mq_index, u16 shared) +{ + /* + * First read the register to see if the FIFO is full, and if so, + * spin until it's not. This isn't perfect -- there is no + * synchronization among the clients of the register, but in + * practice it prevents multiple CPU from hammering the bus + * with PCI RETRY. Note that when this does happen, the card + * cannot get on the bus and the card and system hang in a + * deadlock -- thus the need for this code. [TOT] + */ + while (readl(c2dev->regs + PCI_BAR0_ADAPTER_HINT) & 0x80000000) { + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(0); + } + + __raw_writel(C2_HINT_MAKE(mq_index, shared), + c2dev->regs + PCI_BAR0_ADAPTER_HINT); +} + +/* + * Function: qp_wr_post + * + * Description: + * This in-line function allocates a MQ msg, then moves the host-copy of + * the completed WR into msg. Then it posts the message. + * + * IN: + * q - ptr to user MQ. + * wr - ptr to host-copy of the WR. + * qp - ptr to user qp + * size - Number of bytes to post. Assumed to be divisible by 4. + * + * OUT: none + * + * Return: + * CCIL status codes. + */ +static int qp_wr_post(struct c2_mq *q, union c2wr * wr, struct c2_qp *qp, u32 size) +{ + union c2wr *msg; + + msg = c2_mq_alloc(q); + if (msg == NULL) { + return -EINVAL; + } +#ifdef CCMSGMAGIC + ((c2wr_hdr_t *) wr)->magic = cpu_to_be32(CCWR_MAGIC); +#endif + + /* + * Since all header fields in the WR are the same as the + * CQE, set the following so the adapter need not. + */ + c2_wr_set_result(wr, CCERR_PENDING); + + /* + * Copy the wr down to the adapter + */ + memcpy((void *) msg, (void *) wr, size); + + c2_mq_produce(q); + return 0; +} + + +int c2_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr, + struct ib_send_wr **bad_wr) +{ + struct c2_dev *c2dev = to_c2dev(ibqp->device); + struct c2_qp *qp = to_c2qp(ibqp); + union c2wr wr; + int err = 0; + + u32 flags; + u32 tot_len; + u8 actual_sge_count; + u32 msg_size; + + if (qp->state > IB_QPS_RTS) + return -EINVAL; + + while (ib_wr) { + + flags = 0; + wr.sqwr.sq_hdr.user_hdr.hdr.context = ib_wr->wr_id; + if (ib_wr->send_flags & IB_SEND_SIGNALED) { + flags |= SQ_SIGNALED; + } + + switch (ib_wr->opcode) { + case IB_WR_SEND: + if (ib_wr->send_flags & IB_SEND_SOLICITED) { + c2_wr_set_id(&wr, C2_WR_TYPE_SEND_SE); + msg_size = sizeof(struct c2wr_send_req); + } else { + c2_wr_set_id(&wr, C2_WR_TYPE_SEND); + msg_size = sizeof(struct c2wr_send_req); + } + + wr.sqwr.send.remote_stag = 0; + msg_size += sizeof(struct c2_data_addr) * ib_wr->num_sge; + if (ib_wr->num_sge > qp->send_sgl_depth) { + err = -EINVAL; + break; + } + if (ib_wr->send_flags & IB_SEND_FENCE) { + flags |= SQ_READ_FENCE; + } + err = move_sgl((struct c2_data_addr *) & (wr.sqwr.send.data), + ib_wr->sg_list, + ib_wr->num_sge, + &tot_len, &actual_sge_count); + wr.sqwr.send.sge_len = cpu_to_be32(tot_len); + c2_wr_set_sge_count(&wr, actual_sge_count); + break; + case IB_WR_RDMA_WRITE: + c2_wr_set_id(&wr, C2_WR_TYPE_RDMA_WRITE); + msg_size = sizeof(struct c2wr_rdma_write_req) + + (sizeof(struct c2_data_addr) * ib_wr->num_sge); + if (ib_wr->num_sge > qp->rdma_write_sgl_depth) { + err = -EINVAL; + break; + } + if (ib_wr->send_flags & IB_SEND_FENCE) { + flags |= SQ_READ_FENCE; + } + wr.sqwr.rdma_write.remote_stag = + cpu_to_be32(ib_wr->wr.rdma.rkey); + wr.sqwr.rdma_write.remote_to = + cpu_to_be64(ib_wr->wr.rdma.remote_addr); + err = move_sgl((struct c2_data_addr *) + & (wr.sqwr.rdma_write.data), + ib_wr->sg_list, + ib_wr->num_sge, + &tot_len, &actual_sge_count); + wr.sqwr.rdma_write.sge_len = cpu_to_be32(tot_len); + c2_wr_set_sge_count(&wr, actual_sge_count); + break; + case IB_WR_RDMA_READ: + c2_wr_set_id(&wr, C2_WR_TYPE_RDMA_READ); + msg_size = sizeof(struct c2wr_rdma_read_req); + + /* IWarp only suppots 1 sge for RDMA reads */ + if (ib_wr->num_sge > 1) { + err = -EINVAL; + break; + } + + /* + * Move the local and remote stag/to/len into the WR. + */ + wr.sqwr.rdma_read.local_stag = + cpu_to_be32(ib_wr->sg_list->lkey); + wr.sqwr.rdma_read.local_to = + cpu_to_be64(ib_wr->sg_list->addr); + wr.sqwr.rdma_read.remote_stag = + cpu_to_be32(ib_wr->wr.rdma.rkey); + wr.sqwr.rdma_read.remote_to = + cpu_to_be64(ib_wr->wr.rdma.remote_addr); + wr.sqwr.rdma_read.length = + cpu_to_be32(ib_wr->sg_list->length); + break; + default: + /* error */ + msg_size = 0; + err = -EINVAL; + break; + } + + /* + * If we had an error on the last wr build, then + * break out. Possible errors include bogus WR + * type, and a bogus SGL length... + */ + if (err) { + break; + } + + /* + * Store flags + */ + c2_wr_set_flags(&wr, flags); + + /* + * Post the puppy! + */ + err = qp_wr_post(&qp->sq_mq, &wr, qp, msg_size); + if (err) { + break; + } + + /* + * Enqueue mq index to activity FIFO. + */ + c2_activity(c2dev, qp->sq_mq.index, qp->sq_mq.hint_count); + + ib_wr = ib_wr->next; + } + + if (err) + *bad_wr = ib_wr; + return err; +} + +int c2_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *ib_wr, + struct ib_recv_wr **bad_wr) +{ + struct c2_dev *c2dev = to_c2dev(ibqp->device); + struct c2_qp *qp = to_c2qp(ibqp); + union c2wr wr; + int err = 0; + + if (qp->state > IB_QPS_RTS) + return -EINVAL; + + /* + * Try and post each work request + */ + while (ib_wr) { + u32 tot_len; + u8 actual_sge_count; + + if (ib_wr->num_sge > qp->recv_sgl_depth) { + err = -EINVAL; + break; + } + + /* + * Create local host-copy of the WR + */ + wr.rqwr.rq_hdr.user_hdr.hdr.context = ib_wr->wr_id; + c2_wr_set_id(&wr, CCWR_RECV); + c2_wr_set_flags(&wr, 0); + + /* sge_count is limited to eight bits. */ + BUG_ON(ib_wr->num_sge >= 256); + err = move_sgl((struct c2_data_addr *) & (wr.rqwr.data), + ib_wr->sg_list, + ib_wr->num_sge, &tot_len, &actual_sge_count); + c2_wr_set_sge_count(&wr, actual_sge_count); + + /* + * If we had an error on the last wr build, then + * break out. Possible errors include bogus WR + * type, and a bogus SGL length... + */ + if (err) { + break; + } + + err = qp_wr_post(&qp->rq_mq, &wr, qp, qp->rq_mq.msg_size); + if (err) { + break; + } + + /* + * Enqueue mq index to activity FIFO + */ + c2_activity(c2dev, qp->rq_mq.index, qp->rq_mq.hint_count); + + ib_wr = ib_wr->next; + } + + if (err) + *bad_wr = ib_wr; + return err; +} + +void __devinit c2_init_qp_table(struct c2_dev *c2dev) +{ + spin_lock_init(&c2dev->qp_table.lock); + idr_init(&c2dev->qp_table.idr); +} + +void __devexit c2_cleanup_qp_table(struct c2_dev *c2dev) +{ + idr_destroy(&c2dev->qp_table.idr); +} diff --git a/drivers/infiniband/hw/amso1100/c2_rnic.c b/drivers/infiniband/hw/amso1100/c2_rnic.c new file mode 100644 index 00000000000..1c3c9d65ece --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_rnic.c @@ -0,0 +1,663 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include +#include +#include +#include +#include "c2.h" +#include "c2_vq.h" + +/* Device capabilities */ +#define C2_MIN_PAGESIZE 1024 + +#define C2_MAX_MRS 32768 +#define C2_MAX_QPS 16000 +#define C2_MAX_WQE_SZ 256 +#define C2_MAX_QP_WR ((128*1024)/C2_MAX_WQE_SZ) +#define C2_MAX_SGES 4 +#define C2_MAX_SGE_RD 1 +#define C2_MAX_CQS 32768 +#define C2_MAX_CQES 4096 +#define C2_MAX_PDS 16384 + +/* + * Send the adapter INIT message to the amso1100 + */ +static int c2_adapter_init(struct c2_dev *c2dev) +{ + struct c2wr_init_req wr; + int err; + + memset(&wr, 0, sizeof(wr)); + c2_wr_set_id(&wr, CCWR_INIT); + wr.hdr.context = 0; + wr.hint_count = cpu_to_be64(c2dev->hint_count_dma); + wr.q0_host_shared = cpu_to_be64(c2dev->req_vq.shared_dma); + wr.q1_host_shared = cpu_to_be64(c2dev->rep_vq.shared_dma); + wr.q1_host_msg_pool = cpu_to_be64(c2dev->rep_vq.host_dma); + wr.q2_host_shared = cpu_to_be64(c2dev->aeq.shared_dma); + wr.q2_host_msg_pool = cpu_to_be64(c2dev->aeq.host_dma); + + /* Post the init message */ + err = vq_send_wr(c2dev, (union c2wr *) & wr); + + return err; +} + +/* + * Send the adapter TERM message to the amso1100 + */ +static void c2_adapter_term(struct c2_dev *c2dev) +{ + struct c2wr_init_req wr; + + memset(&wr, 0, sizeof(wr)); + c2_wr_set_id(&wr, CCWR_TERM); + wr.hdr.context = 0; + + /* Post the init message */ + vq_send_wr(c2dev, (union c2wr *) & wr); + c2dev->init = 0; + + return; +} + +/* + * Query the adapter + */ +static int c2_rnic_query(struct c2_dev *c2dev, struct ib_device_attr *props) +{ + struct c2_vq_req *vq_req; + struct c2wr_rnic_query_req wr; + struct c2wr_rnic_query_rep *reply; + int err; + + vq_req = vq_req_alloc(c2dev); + if (!vq_req) + return -ENOMEM; + + c2_wr_set_id(&wr, CCWR_RNIC_QUERY); + wr.hdr.context = (unsigned long) vq_req; + wr.rnic_handle = c2dev->adapter_handle; + + vq_req_get(c2dev, vq_req); + + err = vq_send_wr(c2dev, (union c2wr *) &wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail1; + } + + err = vq_wait_for_reply(c2dev, vq_req); + if (err) + goto bail1; + + reply = + (struct c2wr_rnic_query_rep *) (unsigned long) (vq_req->reply_msg); + if (!reply) + err = -ENOMEM; + + err = c2_errno(reply); + if (err) + goto bail2; + + props->fw_ver = + ((u64)be32_to_cpu(reply->fw_ver_major) << 32) | + ((be32_to_cpu(reply->fw_ver_minor) && 0xFFFF) << 16) | + (be32_to_cpu(reply->fw_ver_patch) && 0xFFFF); + memcpy(&props->sys_image_guid, c2dev->netdev->dev_addr, 6); + props->max_mr_size = 0xFFFFFFFF; + props->page_size_cap = ~(C2_MIN_PAGESIZE-1); + props->vendor_id = be32_to_cpu(reply->vendor_id); + props->vendor_part_id = be32_to_cpu(reply->part_number); + props->hw_ver = be32_to_cpu(reply->hw_version); + props->max_qp = be32_to_cpu(reply->max_qps); + props->max_qp_wr = be32_to_cpu(reply->max_qp_depth); + props->device_cap_flags = c2dev->device_cap_flags; + props->max_sge = C2_MAX_SGES; + props->max_sge_rd = C2_MAX_SGE_RD; + props->max_cq = be32_to_cpu(reply->max_cqs); + props->max_cqe = be32_to_cpu(reply->max_cq_depth); + props->max_mr = be32_to_cpu(reply->max_mrs); + props->max_pd = be32_to_cpu(reply->max_pds); + props->max_qp_rd_atom = be32_to_cpu(reply->max_qp_ird); + props->max_ee_rd_atom = 0; + props->max_res_rd_atom = be32_to_cpu(reply->max_global_ird); + props->max_qp_init_rd_atom = be32_to_cpu(reply->max_qp_ord); + props->max_ee_init_rd_atom = 0; + props->atomic_cap = IB_ATOMIC_NONE; + props->max_ee = 0; + props->max_rdd = 0; + props->max_mw = be32_to_cpu(reply->max_mws); + props->max_raw_ipv6_qp = 0; + props->max_raw_ethy_qp = 0; + props->max_mcast_grp = 0; + props->max_mcast_qp_attach = 0; + props->max_total_mcast_qp_attach = 0; + props->max_ah = 0; + props->max_fmr = 0; + props->max_map_per_fmr = 0; + props->max_srq = 0; + props->max_srq_wr = 0; + props->max_srq_sge = 0; + props->max_pkeys = 0; + props->local_ca_ack_delay = 0; + + bail2: + vq_repbuf_free(c2dev, reply); + + bail1: + vq_req_free(c2dev, vq_req); + return err; +} + +/* + * Add an IP address to the RNIC interface + */ +int c2_add_addr(struct c2_dev *c2dev, u32 inaddr, u32 inmask) +{ + struct c2_vq_req *vq_req; + struct c2wr_rnic_setconfig_req *wr; + struct c2wr_rnic_setconfig_rep *reply; + struct c2_netaddr netaddr; + int err, len; + + vq_req = vq_req_alloc(c2dev); + if (!vq_req) + return -ENOMEM; + + len = sizeof(struct c2_netaddr); + wr = kmalloc(c2dev->req_vq.msg_size, GFP_KERNEL); + if (!wr) { + err = -ENOMEM; + goto bail0; + } + + c2_wr_set_id(wr, CCWR_RNIC_SETCONFIG); + wr->hdr.context = (unsigned long) vq_req; + wr->rnic_handle = c2dev->adapter_handle; + wr->option = cpu_to_be32(C2_CFG_ADD_ADDR); + + netaddr.ip_addr = inaddr; + netaddr.netmask = inmask; + netaddr.mtu = 0; + + memcpy(wr->data, &netaddr, len); + + vq_req_get(c2dev, vq_req); + + err = vq_send_wr(c2dev, (union c2wr *) wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail1; + } + + err = vq_wait_for_reply(c2dev, vq_req); + if (err) + goto bail1; + + reply = + (struct c2wr_rnic_setconfig_rep *) (unsigned long) (vq_req->reply_msg); + if (!reply) { + err = -ENOMEM; + goto bail1; + } + + err = c2_errno(reply); + vq_repbuf_free(c2dev, reply); + + bail1: + kfree(wr); + bail0: + vq_req_free(c2dev, vq_req); + return err; +} + +/* + * Delete an IP address from the RNIC interface + */ +int c2_del_addr(struct c2_dev *c2dev, u32 inaddr, u32 inmask) +{ + struct c2_vq_req *vq_req; + struct c2wr_rnic_setconfig_req *wr; + struct c2wr_rnic_setconfig_rep *reply; + struct c2_netaddr netaddr; + int err, len; + + vq_req = vq_req_alloc(c2dev); + if (!vq_req) + return -ENOMEM; + + len = sizeof(struct c2_netaddr); + wr = kmalloc(c2dev->req_vq.msg_size, GFP_KERNEL); + if (!wr) { + err = -ENOMEM; + goto bail0; + } + + c2_wr_set_id(wr, CCWR_RNIC_SETCONFIG); + wr->hdr.context = (unsigned long) vq_req; + wr->rnic_handle = c2dev->adapter_handle; + wr->option = cpu_to_be32(C2_CFG_DEL_ADDR); + + netaddr.ip_addr = inaddr; + netaddr.netmask = inmask; + netaddr.mtu = 0; + + memcpy(wr->data, &netaddr, len); + + vq_req_get(c2dev, vq_req); + + err = vq_send_wr(c2dev, (union c2wr *) wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail1; + } + + err = vq_wait_for_reply(c2dev, vq_req); + if (err) + goto bail1; + + reply = + (struct c2wr_rnic_setconfig_rep *) (unsigned long) (vq_req->reply_msg); + if (!reply) { + err = -ENOMEM; + goto bail1; + } + + err = c2_errno(reply); + vq_repbuf_free(c2dev, reply); + + bail1: + kfree(wr); + bail0: + vq_req_free(c2dev, vq_req); + return err; +} + +/* + * Open a single RNIC instance to use with all + * low level openib calls + */ +static int c2_rnic_open(struct c2_dev *c2dev) +{ + struct c2_vq_req *vq_req; + union c2wr wr; + struct c2wr_rnic_open_rep *reply; + int err; + + vq_req = vq_req_alloc(c2dev); + if (vq_req == NULL) { + return -ENOMEM; + } + + memset(&wr, 0, sizeof(wr)); + c2_wr_set_id(&wr, CCWR_RNIC_OPEN); + wr.rnic_open.req.hdr.context = (unsigned long) (vq_req); + wr.rnic_open.req.flags = cpu_to_be16(RNIC_PRIV_MODE); + wr.rnic_open.req.port_num = cpu_to_be16(0); + wr.rnic_open.req.user_context = (unsigned long) c2dev; + + vq_req_get(c2dev, vq_req); + + err = vq_send_wr(c2dev, &wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail0; + } + + err = vq_wait_for_reply(c2dev, vq_req); + if (err) { + goto bail0; + } + + reply = (struct c2wr_rnic_open_rep *) (unsigned long) (vq_req->reply_msg); + if (!reply) { + err = -ENOMEM; + goto bail0; + } + + if ((err = c2_errno(reply)) != 0) { + goto bail1; + } + + c2dev->adapter_handle = reply->rnic_handle; + + bail1: + vq_repbuf_free(c2dev, reply); + bail0: + vq_req_free(c2dev, vq_req); + return err; +} + +/* + * Close the RNIC instance + */ +static int c2_rnic_close(struct c2_dev *c2dev) +{ + struct c2_vq_req *vq_req; + union c2wr wr; + struct c2wr_rnic_close_rep *reply; + int err; + + vq_req = vq_req_alloc(c2dev); + if (vq_req == NULL) { + return -ENOMEM; + } + + memset(&wr, 0, sizeof(wr)); + c2_wr_set_id(&wr, CCWR_RNIC_CLOSE); + wr.rnic_close.req.hdr.context = (unsigned long) vq_req; + wr.rnic_close.req.rnic_handle = c2dev->adapter_handle; + + vq_req_get(c2dev, vq_req); + + err = vq_send_wr(c2dev, &wr); + if (err) { + vq_req_put(c2dev, vq_req); + goto bail0; + } + + err = vq_wait_for_reply(c2dev, vq_req); + if (err) { + goto bail0; + } + + reply = (struct c2wr_rnic_close_rep *) (unsigned long) (vq_req->reply_msg); + if (!reply) { + err = -ENOMEM; + goto bail0; + } + + if ((err = c2_errno(reply)) != 0) { + goto bail1; + } + + c2dev->adapter_handle = 0; + + bail1: + vq_repbuf_free(c2dev, reply); + bail0: + vq_req_free(c2dev, vq_req); + return err; +} + +/* + * Called by c2_probe to initialize the RNIC. This principally + * involves initalizing the various limits and resouce pools that + * comprise the RNIC instance. + */ +int c2_rnic_init(struct c2_dev *c2dev) +{ + int err; + u32 qsize, msgsize; + void *q1_pages; + void *q2_pages; + void __iomem *mmio_regs; + + /* Device capabilities */ + c2dev->device_cap_flags = + (IB_DEVICE_RESIZE_MAX_WR | + IB_DEVICE_CURR_QP_STATE_MOD | + IB_DEVICE_SYS_IMAGE_GUID | + IB_DEVICE_ZERO_STAG | + IB_DEVICE_SEND_W_INV | IB_DEVICE_MEM_WINDOW); + + /* Allocate the qptr_array */ + c2dev->qptr_array = vmalloc(C2_MAX_CQS * sizeof(void *)); + if (!c2dev->qptr_array) { + return -ENOMEM; + } + + /* Inialize the qptr_array */ + memset(c2dev->qptr_array, 0, C2_MAX_CQS * sizeof(void *)); + c2dev->qptr_array[0] = (void *) &c2dev->req_vq; + c2dev->qptr_array[1] = (void *) &c2dev->rep_vq; + c2dev->qptr_array[2] = (void *) &c2dev->aeq; + + /* Initialize data structures */ + init_waitqueue_head(&c2dev->req_vq_wo); + spin_lock_init(&c2dev->vqlock); + spin_lock_init(&c2dev->lock); + + /* Allocate MQ shared pointer pool for kernel clients. User + * mode client pools are hung off the user context + */ + err = c2_init_mqsp_pool(c2dev, GFP_KERNEL, &c2dev->kern_mqsp_pool); + if (err) { + goto bail0; + } + + /* Allocate shared pointers for Q0, Q1, and Q2 from + * the shared pointer pool. + */ + + c2dev->hint_count = c2_alloc_mqsp(c2dev, c2dev->kern_mqsp_pool, + &c2dev->hint_count_dma, + GFP_KERNEL); + c2dev->req_vq.shared = c2_alloc_mqsp(c2dev, c2dev->kern_mqsp_pool, + &c2dev->req_vq.shared_dma, + GFP_KERNEL); + c2dev->rep_vq.shared = c2_alloc_mqsp(c2dev, c2dev->kern_mqsp_pool, + &c2dev->rep_vq.shared_dma, + GFP_KERNEL); + c2dev->aeq.shared = c2_alloc_mqsp(c2dev, c2dev->kern_mqsp_pool, + &c2dev->aeq.shared_dma, GFP_KERNEL); + if (!c2dev->hint_count || !c2dev->req_vq.shared || + !c2dev->rep_vq.shared || !c2dev->aeq.shared) { + err = -ENOMEM; + goto bail1; + } + + mmio_regs = c2dev->kva; + /* Initialize the Verbs Request Queue */ + c2_mq_req_init(&c2dev->req_vq, 0, + be32_to_cpu(readl(mmio_regs + C2_REGS_Q0_QSIZE)), + be32_to_cpu(readl(mmio_regs + C2_REGS_Q0_MSGSIZE)), + mmio_regs + + be32_to_cpu(readl(mmio_regs + C2_REGS_Q0_POOLSTART)), + mmio_regs + + be32_to_cpu(readl(mmio_regs + C2_REGS_Q0_SHARED)), + C2_MQ_ADAPTER_TARGET); + + /* Initialize the Verbs Reply Queue */ + qsize = be32_to_cpu(readl(mmio_regs + C2_REGS_Q1_QSIZE)); + msgsize = be32_to_cpu(readl(mmio_regs + C2_REGS_Q1_MSGSIZE)); + q1_pages = kmalloc(qsize * msgsize, GFP_KERNEL); + if (!q1_pages) { + err = -ENOMEM; + goto bail1; + } + c2dev->rep_vq.host_dma = dma_map_single(c2dev->ibdev.dma_device, + (void *)q1_pages, qsize * msgsize, + DMA_FROM_DEVICE); + pci_unmap_addr_set(&c2dev->rep_vq, mapping, c2dev->rep_vq.host_dma); + pr_debug("%s rep_vq va %p dma %llx\n", __FUNCTION__, q1_pages, + (u64)c2dev->rep_vq.host_dma); + c2_mq_rep_init(&c2dev->rep_vq, + 1, + qsize, + msgsize, + q1_pages, + mmio_regs + + be32_to_cpu(readl(mmio_regs + C2_REGS_Q1_SHARED)), + C2_MQ_HOST_TARGET); + + /* Initialize the Asynchronus Event Queue */ + qsize = be32_to_cpu(readl(mmio_regs + C2_REGS_Q2_QSIZE)); + msgsize = be32_to_cpu(readl(mmio_regs + C2_REGS_Q2_MSGSIZE)); + q2_pages = kmalloc(qsize * msgsize, GFP_KERNEL); + if (!q2_pages) { + err = -ENOMEM; + goto bail2; + } + c2dev->aeq.host_dma = dma_map_single(c2dev->ibdev.dma_device, + (void *)q2_pages, qsize * msgsize, + DMA_FROM_DEVICE); + pci_unmap_addr_set(&c2dev->aeq, mapping, c2dev->aeq.host_dma); + pr_debug("%s aeq va %p dma %llx\n", __FUNCTION__, q1_pages, + (u64)c2dev->rep_vq.host_dma); + c2_mq_rep_init(&c2dev->aeq, + 2, + qsize, + msgsize, + q2_pages, + mmio_regs + + be32_to_cpu(readl(mmio_regs + C2_REGS_Q2_SHARED)), + C2_MQ_HOST_TARGET); + + /* Initialize the verbs request allocator */ + err = vq_init(c2dev); + if (err) + goto bail3; + + /* Enable interrupts on the adapter */ + writel(0, c2dev->regs + C2_IDIS); + + /* create the WR init message */ + err = c2_adapter_init(c2dev); + if (err) + goto bail4; + c2dev->init++; + + /* open an adapter instance */ + err = c2_rnic_open(c2dev); + if (err) + goto bail4; + + /* Initialize cached the adapter limits */ + if (c2_rnic_query(c2dev, &c2dev->props)) + goto bail5; + + /* Initialize the PD pool */ + err = c2_init_pd_table(c2dev); + if (err) + goto bail5; + + /* Initialize the QP pool */ + c2_init_qp_table(c2dev); + return 0; + + bail5: + c2_rnic_close(c2dev); + bail4: + vq_term(c2dev); + bail3: + dma_unmap_single(c2dev->ibdev.dma_device, + pci_unmap_addr(&c2dev->aeq, mapping), + c2dev->aeq.q_size * c2dev->aeq.msg_size, + DMA_FROM_DEVICE); + kfree(q2_pages); + bail2: + dma_unmap_single(c2dev->ibdev.dma_device, + pci_unmap_addr(&c2dev->rep_vq, mapping), + c2dev->rep_vq.q_size * c2dev->rep_vq.msg_size, + DMA_FROM_DEVICE); + kfree(q1_pages); + bail1: + c2_free_mqsp_pool(c2dev, c2dev->kern_mqsp_pool); + bail0: + vfree(c2dev->qptr_array); + + return err; +} + +/* + * Called by c2_remove to cleanup the RNIC resources. + */ +void c2_rnic_term(struct c2_dev *c2dev) +{ + + /* Close the open adapter instance */ + c2_rnic_close(c2dev); + + /* Send the TERM message to the adapter */ + c2_adapter_term(c2dev); + + /* Disable interrupts on the adapter */ + writel(1, c2dev->regs + C2_IDIS); + + /* Free the QP pool */ + c2_cleanup_qp_table(c2dev); + + /* Free the PD pool */ + c2_cleanup_pd_table(c2dev); + + /* Free the verbs request allocator */ + vq_term(c2dev); + + /* Unmap and free the asynchronus event queue */ + dma_unmap_single(c2dev->ibdev.dma_device, + pci_unmap_addr(&c2dev->aeq, mapping), + c2dev->aeq.q_size * c2dev->aeq.msg_size, + DMA_FROM_DEVICE); + kfree(c2dev->aeq.msg_pool.host); + + /* Unmap and free the verbs reply queue */ + dma_unmap_single(c2dev->ibdev.dma_device, + pci_unmap_addr(&c2dev->rep_vq, mapping), + c2dev->rep_vq.q_size * c2dev->rep_vq.msg_size, + DMA_FROM_DEVICE); + kfree(c2dev->rep_vq.msg_pool.host); + + /* Free the MQ shared pointer pool */ + c2_free_mqsp_pool(c2dev, c2dev->kern_mqsp_pool); + + /* Free the qptr_array */ + vfree(c2dev->qptr_array); + + return; +} diff --git a/drivers/infiniband/hw/amso1100/c2_status.h b/drivers/infiniband/hw/amso1100/c2_status.h new file mode 100644 index 00000000000..6ee4aa92d87 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_status.h @@ -0,0 +1,158 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef _C2_STATUS_H_ +#define _C2_STATUS_H_ + +/* + * Verbs Status Codes + */ +enum c2_status { + C2_OK = 0, /* This must be zero */ + CCERR_INSUFFICIENT_RESOURCES = 1, + CCERR_INVALID_MODIFIER = 2, + CCERR_INVALID_MODE = 3, + CCERR_IN_USE = 4, + CCERR_INVALID_RNIC = 5, + CCERR_INTERRUPTED_OPERATION = 6, + CCERR_INVALID_EH = 7, + CCERR_INVALID_CQ = 8, + CCERR_CQ_EMPTY = 9, + CCERR_NOT_IMPLEMENTED = 10, + CCERR_CQ_DEPTH_TOO_SMALL = 11, + CCERR_PD_IN_USE = 12, + CCERR_INVALID_PD = 13, + CCERR_INVALID_SRQ = 14, + CCERR_INVALID_ADDRESS = 15, + CCERR_INVALID_NETMASK = 16, + CCERR_INVALID_QP = 17, + CCERR_INVALID_QP_STATE = 18, + CCERR_TOO_MANY_WRS_POSTED = 19, + CCERR_INVALID_WR_TYPE = 20, + CCERR_INVALID_SGL_LENGTH = 21, + CCERR_INVALID_SQ_DEPTH = 22, + CCERR_INVALID_RQ_DEPTH = 23, + CCERR_INVALID_ORD = 24, + CCERR_INVALID_IRD = 25, + CCERR_QP_ATTR_CANNOT_CHANGE = 26, + CCERR_INVALID_STAG = 27, + CCERR_QP_IN_USE = 28, + CCERR_OUTSTANDING_WRS = 29, + CCERR_STAG_IN_USE = 30, + CCERR_INVALID_STAG_INDEX = 31, + CCERR_INVALID_SGL_FORMAT = 32, + CCERR_ADAPTER_TIMEOUT = 33, + CCERR_INVALID_CQ_DEPTH = 34, + CCERR_INVALID_PRIVATE_DATA_LENGTH = 35, + CCERR_INVALID_EP = 36, + CCERR_MR_IN_USE = CCERR_STAG_IN_USE, + CCERR_FLUSHED = 38, + CCERR_INVALID_WQE = 39, + CCERR_LOCAL_QP_CATASTROPHIC_ERROR = 40, + CCERR_REMOTE_TERMINATION_ERROR = 41, + CCERR_BASE_AND_BOUNDS_VIOLATION = 42, + CCERR_ACCESS_VIOLATION = 43, + CCERR_INVALID_PD_ID = 44, + CCERR_WRAP_ERROR = 45, + CCERR_INV_STAG_ACCESS_ERROR = 46, + CCERR_ZERO_RDMA_READ_RESOURCES = 47, + CCERR_QP_NOT_PRIVILEGED = 48, + CCERR_STAG_STATE_NOT_INVALID = 49, + CCERR_INVALID_PAGE_SIZE = 50, + CCERR_INVALID_BUFFER_SIZE = 51, + CCERR_INVALID_PBE = 52, + CCERR_INVALID_FBO = 53, + CCERR_INVALID_LENGTH = 54, + CCERR_INVALID_ACCESS_RIGHTS = 55, + CCERR_PBL_TOO_BIG = 56, + CCERR_INVALID_VA = 57, + CCERR_INVALID_REGION = 58, + CCERR_INVALID_WINDOW = 59, + CCERR_TOTAL_LENGTH_TOO_BIG = 60, + CCERR_INVALID_QP_ID = 61, + CCERR_ADDR_IN_USE = 62, + CCERR_ADDR_NOT_AVAIL = 63, + CCERR_NET_DOWN = 64, + CCERR_NET_UNREACHABLE = 65, + CCERR_CONN_ABORTED = 66, + CCERR_CONN_RESET = 67, + CCERR_NO_BUFS = 68, + CCERR_CONN_TIMEDOUT = 69, + CCERR_CONN_REFUSED = 70, + CCERR_HOST_UNREACHABLE = 71, + CCERR_INVALID_SEND_SGL_DEPTH = 72, + CCERR_INVALID_RECV_SGL_DEPTH = 73, + CCERR_INVALID_RDMA_WRITE_SGL_DEPTH = 74, + CCERR_INSUFFICIENT_PRIVILEGES = 75, + CCERR_STACK_ERROR = 76, + CCERR_INVALID_VERSION = 77, + CCERR_INVALID_MTU = 78, + CCERR_INVALID_IMAGE = 79, + CCERR_PENDING = 98, /* not an error; user internally by adapter */ + CCERR_DEFER = 99, /* not an error; used internally by adapter */ + CCERR_FAILED_WRITE = 100, + CCERR_FAILED_ERASE = 101, + CCERR_FAILED_VERIFICATION = 102, + CCERR_NOT_FOUND = 103, + +}; + +/* + * CCAE_ACTIVE_CONNECT_RESULTS status result codes. + */ +enum c2_connect_status { + C2_CONN_STATUS_SUCCESS = C2_OK, + C2_CONN_STATUS_NO_MEM = CCERR_INSUFFICIENT_RESOURCES, + C2_CONN_STATUS_TIMEDOUT = CCERR_CONN_TIMEDOUT, + C2_CONN_STATUS_REFUSED = CCERR_CONN_REFUSED, + C2_CONN_STATUS_NETUNREACH = CCERR_NET_UNREACHABLE, + C2_CONN_STATUS_HOSTUNREACH = CCERR_HOST_UNREACHABLE, + C2_CONN_STATUS_INVALID_RNIC = CCERR_INVALID_RNIC, + C2_CONN_STATUS_INVALID_QP = CCERR_INVALID_QP, + C2_CONN_STATUS_INVALID_QP_STATE = CCERR_INVALID_QP_STATE, + C2_CONN_STATUS_REJECTED = CCERR_CONN_RESET, + C2_CONN_STATUS_ADDR_NOT_AVAIL = CCERR_ADDR_NOT_AVAIL, +}; + +/* + * Flash programming status codes. + */ +enum c2_flash_status { + C2_FLASH_STATUS_SUCCESS = 0x0000, + C2_FLASH_STATUS_VERIFY_ERR = 0x0002, + C2_FLASH_STATUS_IMAGE_ERR = 0x0004, + C2_FLASH_STATUS_ECLBS = 0x0400, + C2_FLASH_STATUS_PSLBS = 0x0800, + C2_FLASH_STATUS_VPENS = 0x1000, +}; + +#endif /* _C2_STATUS_H_ */ diff --git a/drivers/infiniband/hw/amso1100/c2_user.h b/drivers/infiniband/hw/amso1100/c2_user.h new file mode 100644 index 00000000000..7e9e7ad6546 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_user.h @@ -0,0 +1,82 @@ +/* + * Copyright (c) 2005 Topspin Communications. All rights reserved. + * Copyright (c) 2005 Cisco Systems. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#ifndef C2_USER_H +#define C2_USER_H + +#include + +/* + * Make sure that all structs defined in this file remain laid out so + * that they pack the same way on 32-bit and 64-bit architectures (to + * avoid incompatibility between 32-bit userspace and 64-bit kernels). + * In particular do not use pointer types -- pass pointers in __u64 + * instead. + */ + +struct c2_alloc_ucontext_resp { + __u32 qp_tab_size; + __u32 uarc_size; +}; + +struct c2_alloc_pd_resp { + __u32 pdn; + __u32 reserved; +}; + +struct c2_create_cq { + __u32 lkey; + __u32 pdn; + __u64 arm_db_page; + __u64 set_db_page; + __u32 arm_db_index; + __u32 set_db_index; +}; + +struct c2_create_cq_resp { + __u32 cqn; + __u32 reserved; +}; + +struct c2_create_qp { + __u32 lkey; + __u32 reserved; + __u64 sq_db_page; + __u64 rq_db_page; + __u32 sq_db_index; + __u32 rq_db_index; +}; + +#endif /* C2_USER_H */ diff --git a/drivers/infiniband/hw/amso1100/c2_vq.c b/drivers/infiniband/hw/amso1100/c2_vq.c new file mode 100644 index 00000000000..40caeb5f41b --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_vq.c @@ -0,0 +1,260 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include +#include + +#include "c2_vq.h" +#include "c2_provider.h" + +/* + * Verbs Request Objects: + * + * VQ Request Objects are allocated by the kernel verbs handlers. + * They contain a wait object, a refcnt, an atomic bool indicating that the + * adapter has replied, and a copy of the verb reply work request. + * A pointer to the VQ Request Object is passed down in the context + * field of the work request message, and reflected back by the adapter + * in the verbs reply message. The function handle_vq() in the interrupt + * path will use this pointer to: + * 1) append a copy of the verbs reply message + * 2) mark that the reply is ready + * 3) wake up the kernel verbs handler blocked awaiting the reply. + * + * + * The kernel verbs handlers do a "get" to put a 2nd reference on the + * VQ Request object. If the kernel verbs handler exits before the adapter + * can respond, this extra reference will keep the VQ Request object around + * until the adapter's reply can be processed. The reason we need this is + * because a pointer to this object is stuffed into the context field of + * the verbs work request message, and reflected back in the reply message. + * It is used in the interrupt handler (handle_vq()) to wake up the appropriate + * kernel verb handler that is blocked awaiting the verb reply. + * So handle_vq() will do a "put" on the object when it's done accessing it. + * NOTE: If we guarantee that the kernel verb handler will never bail before + * getting the reply, then we don't need these refcnts. + * + * + * VQ Request objects are freed by the kernel verbs handlers only + * after the verb has been processed, or when the adapter fails and + * does not reply. + * + * + * Verbs Reply Buffers: + * + * VQ Reply bufs are local host memory copies of a + * outstanding Verb Request reply + * message. The are always allocated by the kernel verbs handlers, and _may_ be + * freed by either the kernel verbs handler -or- the interrupt handler. The + * kernel verbs handler _must_ free the repbuf, then free the vq request object + * in that order. + */ + +int vq_init(struct c2_dev *c2dev) +{ + sprintf(c2dev->vq_cache_name, "c2-vq:dev%c", + (char) ('0' + c2dev->devnum)); + c2dev->host_msg_cache = + kmem_cache_create(c2dev->vq_cache_name, c2dev->rep_vq.msg_size, 0, + SLAB_HWCACHE_ALIGN, NULL, NULL); + if (c2dev->host_msg_cache == NULL) { + return -ENOMEM; + } + return 0; +} + +void vq_term(struct c2_dev *c2dev) +{ + kmem_cache_destroy(c2dev->host_msg_cache); +} + +/* vq_req_alloc - allocate a VQ Request Object and initialize it. + * The refcnt is set to 1. + */ +struct c2_vq_req *vq_req_alloc(struct c2_dev *c2dev) +{ + struct c2_vq_req *r; + + r = kmalloc(sizeof(struct c2_vq_req), GFP_KERNEL); + if (r) { + init_waitqueue_head(&r->wait_object); + r->reply_msg = (u64) NULL; + r->event = 0; + r->cm_id = NULL; + r->qp = NULL; + atomic_set(&r->refcnt, 1); + atomic_set(&r->reply_ready, 0); + } + return r; +} + + +/* vq_req_free - free the VQ Request Object. It is assumed the verbs handler + * has already free the VQ Reply Buffer if it existed. + */ +void vq_req_free(struct c2_dev *c2dev, struct c2_vq_req *r) +{ + r->reply_msg = (u64) NULL; + if (atomic_dec_and_test(&r->refcnt)) { + kfree(r); + } +} + +/* vq_req_get - reference a VQ Request Object. Done + * only in the kernel verbs handlers. + */ +void vq_req_get(struct c2_dev *c2dev, struct c2_vq_req *r) +{ + atomic_inc(&r->refcnt); +} + + +/* vq_req_put - dereference and potentially free a VQ Request Object. + * + * This is only called by handle_vq() on the + * interrupt when it is done processing + * a verb reply message. If the associated + * kernel verbs handler has already bailed, + * then this put will actually free the VQ + * Request object _and_ the VQ Reply Buffer + * if it exists. + */ +void vq_req_put(struct c2_dev *c2dev, struct c2_vq_req *r) +{ + if (atomic_dec_and_test(&r->refcnt)) { + if (r->reply_msg != (u64) NULL) + vq_repbuf_free(c2dev, + (void *) (unsigned long) r->reply_msg); + kfree(r); + } +} + + +/* + * vq_repbuf_alloc - allocate a VQ Reply Buffer. + */ +void *vq_repbuf_alloc(struct c2_dev *c2dev) +{ + return kmem_cache_alloc(c2dev->host_msg_cache, SLAB_ATOMIC); +} + +/* + * vq_send_wr - post a verbs request message to the Verbs Request Queue. + * If a message is not available in the MQ, then block until one is available. + * NOTE: handle_mq() on the interrupt context will wake up threads blocked here. + * When the adapter drains the Verbs Request Queue, + * it inserts MQ index 0 in to the + * adapter->host activity fifo and interrupts the host. + */ +int vq_send_wr(struct c2_dev *c2dev, union c2wr *wr) +{ + void *msg; + wait_queue_t __wait; + + /* + * grab adapter vq lock + */ + spin_lock(&c2dev->vqlock); + + /* + * allocate msg + */ + msg = c2_mq_alloc(&c2dev->req_vq); + + /* + * If we cannot get a msg, then we'll wait + * When a messages are available, the int handler will wake_up() + * any waiters. + */ + while (msg == NULL) { + pr_debug("%s:%d no available msg in VQ, waiting...\n", + __FUNCTION__, __LINE__); + init_waitqueue_entry(&__wait, current); + add_wait_queue(&c2dev->req_vq_wo, &__wait); + spin_unlock(&c2dev->vqlock); + for (;;) { + set_current_state(TASK_INTERRUPTIBLE); + if (!c2_mq_full(&c2dev->req_vq)) { + break; + } + if (!signal_pending(current)) { + schedule_timeout(1 * HZ); /* 1 second... */ + continue; + } + set_current_state(TASK_RUNNING); + remove_wait_queue(&c2dev->req_vq_wo, &__wait); + return -EINTR; + } + set_current_state(TASK_RUNNING); + remove_wait_queue(&c2dev->req_vq_wo, &__wait); + spin_lock(&c2dev->vqlock); + msg = c2_mq_alloc(&c2dev->req_vq); + } + + /* + * copy wr into adapter msg + */ + memcpy(msg, wr, c2dev->req_vq.msg_size); + + /* + * post msg + */ + c2_mq_produce(&c2dev->req_vq); + + /* + * release adapter vq lock + */ + spin_unlock(&c2dev->vqlock); + return 0; +} + + +/* + * vq_wait_for_reply - block until the adapter posts a Verb Reply Message. + */ +int vq_wait_for_reply(struct c2_dev *c2dev, struct c2_vq_req *req) +{ + if (!wait_event_timeout(req->wait_object, + atomic_read(&req->reply_ready), + 60*HZ)) + return -ETIMEDOUT; + + return 0; +} + +/* + * vq_repbuf_free - Free a Verbs Reply Buffer. + */ +void vq_repbuf_free(struct c2_dev *c2dev, void *reply) +{ + kmem_cache_free(c2dev->host_msg_cache, reply); +} diff --git a/drivers/infiniband/hw/amso1100/c2_vq.h b/drivers/infiniband/hw/amso1100/c2_vq.h new file mode 100644 index 00000000000..33805627a60 --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_vq.h @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef _C2_VQ_H_ +#define _C2_VQ_H_ +#include +#include "c2.h" +#include "c2_wr.h" +#include "c2_provider.h" + +struct c2_vq_req { + u64 reply_msg; /* ptr to reply msg */ + wait_queue_head_t wait_object; /* wait object for vq reqs */ + atomic_t reply_ready; /* set when reply is ready */ + atomic_t refcnt; /* used to cancel WRs... */ + int event; + struct iw_cm_id *cm_id; + struct c2_qp *qp; +}; + +extern int vq_init(struct c2_dev *c2dev); +extern void vq_term(struct c2_dev *c2dev); + +extern struct c2_vq_req *vq_req_alloc(struct c2_dev *c2dev); +extern void vq_req_free(struct c2_dev *c2dev, struct c2_vq_req *req); +extern void vq_req_get(struct c2_dev *c2dev, struct c2_vq_req *req); +extern void vq_req_put(struct c2_dev *c2dev, struct c2_vq_req *req); +extern int vq_send_wr(struct c2_dev *c2dev, union c2wr * wr); + +extern void *vq_repbuf_alloc(struct c2_dev *c2dev); +extern void vq_repbuf_free(struct c2_dev *c2dev, void *reply); + +extern int vq_wait_for_reply(struct c2_dev *c2dev, struct c2_vq_req *req); +#endif /* _C2_VQ_H_ */ diff --git a/drivers/infiniband/hw/amso1100/c2_wr.h b/drivers/infiniband/hw/amso1100/c2_wr.h new file mode 100644 index 00000000000..3ec6c43bb0e --- /dev/null +++ b/drivers/infiniband/hw/amso1100/c2_wr.h @@ -0,0 +1,1520 @@ +/* + * Copyright (c) 2005 Ammasso, Inc. All rights reserved. + * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef _C2_WR_H_ +#define _C2_WR_H_ + +#ifdef CCDEBUG +#define CCWR_MAGIC 0xb07700b0 +#endif + +#define C2_QP_NO_ATTR_CHANGE 0xFFFFFFFF + +/* Maximum allowed size in bytes of private_data exchange + * on connect. + */ +#define C2_MAX_PRIVATE_DATA_SIZE 200 + +/* + * These types are shared among the adapter, host, and CCIL consumer. + */ +enum c2_cq_notification_type { + C2_CQ_NOTIFICATION_TYPE_NONE = 1, + C2_CQ_NOTIFICATION_TYPE_NEXT, + C2_CQ_NOTIFICATION_TYPE_NEXT_SE +}; + +enum c2_setconfig_cmd { + C2_CFG_ADD_ADDR = 1, + C2_CFG_DEL_ADDR = 2, + C2_CFG_ADD_ROUTE = 3, + C2_CFG_DEL_ROUTE = 4 +}; + +enum c2_getconfig_cmd { + C2_GETCONFIG_ROUTES = 1, + C2_GETCONFIG_ADDRS +}; + +/* + * CCIL Work Request Identifiers + */ +enum c2wr_ids { + CCWR_RNIC_OPEN = 1, + CCWR_RNIC_QUERY, + CCWR_RNIC_SETCONFIG, + CCWR_RNIC_GETCONFIG, + CCWR_RNIC_CLOSE, + CCWR_CQ_CREATE, + CCWR_CQ_QUERY, + CCWR_CQ_MODIFY, + CCWR_CQ_DESTROY, + CCWR_QP_CONNECT, + CCWR_PD_ALLOC, + CCWR_PD_DEALLOC, + CCWR_SRQ_CREATE, + CCWR_SRQ_QUERY, + CCWR_SRQ_MODIFY, + CCWR_SRQ_DESTROY, + CCWR_QP_CREATE, + CCWR_QP_QUERY, + CCWR_QP_MODIFY, + CCWR_QP_DESTROY, + CCWR_NSMR_STAG_ALLOC, + CCWR_NSMR_REGISTER, + CCWR_NSMR_PBL, + CCWR_STAG_DEALLOC, + CCWR_NSMR_REREGISTER, + CCWR_SMR_REGISTER, + CCWR_MR_QUERY, + CCWR_MW_ALLOC, + CCWR_MW_QUERY, + CCWR_EP_CREATE, + CCWR_EP_GETOPT, + CCWR_EP_SETOPT, + CCWR_EP_DESTROY, + CCWR_EP_BIND, + CCWR_EP_CONNECT, + CCWR_EP_LISTEN, + CCWR_EP_SHUTDOWN, + CCWR_EP_LISTEN_CREATE, + CCWR_EP_LISTEN_DESTROY, + CCWR_EP_QUERY, + CCWR_CR_ACCEPT, + CCWR_CR_REJECT, + CCWR_CONSOLE, + CCWR_TERM, + CCWR_FLASH_INIT, + CCWR_FLASH, + CCWR_BUF_ALLOC, + CCWR_BUF_FREE, + CCWR_FLASH_WRITE, + CCWR_INIT, /* WARNING: Don't move this ever again! */ + + + + /* Add new IDs here */ + + + + /* + * WARNING: CCWR_LAST must always be the last verbs id defined! + * All the preceding IDs are fixed, and must not change. + * You can add new IDs, but must not remove or reorder + * any IDs. If you do, YOU will ruin any hope of + * compatability between versions. + */ + CCWR_LAST, + + /* + * Start over at 1 so that arrays indexed by user wr id's + * begin at 1. This is OK since the verbs and user wr id's + * are always used on disjoint sets of queues. + */ + /* + * The order of the CCWR_SEND_XX verbs must + * match the order of the RDMA_OPs + */ + CCWR_SEND = 1, + CCWR_SEND_INV, + CCWR_SEND_SE, + CCWR_SEND_SE_INV, + CCWR_RDMA_WRITE, + CCWR_RDMA_READ, + CCWR_RDMA_READ_INV, + CCWR_MW_BIND, + CCWR_NSMR_FASTREG, + CCWR_STAG_INVALIDATE, + CCWR_RECV, + CCWR_NOP, + CCWR_UNIMPL, +/* WARNING: This must always be the last user wr id defined! */ +}; +#define RDMA_SEND_OPCODE_FROM_WR_ID(x) (x+2) + +/* + * SQ/RQ Work Request Types + */ +enum c2_wr_type { + C2_WR_TYPE_SEND = CCWR_SEND, + C2_WR_TYPE_SEND_SE = CCWR_SEND_SE, + C2_WR_TYPE_SEND_INV = CCWR_SEND_INV, + C2_WR_TYPE_SEND_SE_INV = CCWR_SEND_SE_INV, + C2_WR_TYPE_RDMA_WRITE = CCWR_RDMA_WRITE, + C2_WR_TYPE_RDMA_READ = CCWR_RDMA_READ, + C2_WR_TYPE_RDMA_READ_INV_STAG = CCWR_RDMA_READ_INV, + C2_WR_TYPE_BIND_MW = CCWR_MW_BIND, + C2_WR_TYPE_FASTREG_NSMR = CCWR_NSMR_FASTREG, + C2_WR_TYPE_INV_STAG = CCWR_STAG_INVALIDATE, + C2_WR_TYPE_RECV = CCWR_RECV, + C2_WR_TYPE_NOP = CCWR_NOP, +}; + +struct c2_netaddr { + u32 ip_addr; + u32 netmask; + u32 mtu; +}; + +struct c2_route { + u32 ip_addr; /* 0 indicates the default route */ + u32 netmask; /* netmask associated with dst */ + u32 flags; + union { + u32 ipaddr; /* address of the nexthop interface */ + u8 enaddr[6]; + } nexthop; +}; + +/* + * A Scatter Gather Entry. + */ +struct c2_data_addr { + u32 stag; + u32 length; + u64 to; +}; + +/* + * MR and MW flags used by the consumer, RI, and RNIC. + */ +enum c2_mm_flags { + MEM_REMOTE = 0x0001, /* allow mw binds with remote access. */ + MEM_VA_BASED = 0x0002, /* Not Zero-based */ + MEM_PBL_COMPLETE = 0x0004, /* PBL array is complete in this msg */ + MEM_LOCAL_READ = 0x0008, /* allow local reads */ + MEM_LOCAL_WRITE = 0x0010, /* allow local writes */ + MEM_REMOTE_READ = 0x0020, /* allow remote reads */ + MEM_REMOTE_WRITE = 0x0040, /* allow remote writes */ + MEM_WINDOW_BIND = 0x0080, /* binds allowed */ + MEM_SHARED = 0x0100, /* set if MR is shared */ + MEM_STAG_VALID = 0x0200 /* set if STAG is in valid state */ +}; + +/* + * CCIL API ACF flags defined in terms of the low level mem flags. + * This minimizes translation needed in the user API + */ +enum c2_acf { + C2_ACF_LOCAL_READ = MEM_LOCAL_READ, + C2_ACF_LOCAL_WRITE = MEM_LOCAL_WRITE, + C2_ACF_REMOTE_READ = MEM_REMOTE_READ, + C2_ACF_REMOTE_WRITE = MEM_REMOTE_WRITE, + C2_ACF_WINDOW_BIND = MEM_WINDOW_BIND +}; + +/* + * Image types of objects written to flash + */ +#define C2_FLASH_IMG_BITFILE 1 +#define C2_FLASH_IMG_OPTION_ROM 2 +#define C2_FLASH_IMG_VPD 3 + +/* + * to fix bug 1815 we define the max size allowable of the + * terminate message (per the IETF spec).Refer to the IETF + * protocal specification, section 12.1.6, page 64) + * The message is prefixed by 20 types of DDP info. + * + * Then the message has 6 bytes for the terminate control + * and DDP segment length info plus a DDP header (either + * 14 or 18 byts) plus 28 bytes for the RDMA header. + * Thus the max size in: + * 20 + (6 + 18 + 28) = 72 + */ +#define C2_MAX_TERMINATE_MESSAGE_SIZE (72) + +/* + * Build String Length. It must be the same as C2_BUILD_STR_LEN in ccil_api.h + */ +#define WR_BUILD_STR_LEN 64 + +/* + * WARNING: All of these structs need to align any 64bit types on + * 64 bit boundaries! 64bit types include u64 and u64. + */ + +/* + * Clustercore Work Request Header. Be sensitive to field layout + * and alignment. + */ +struct c2wr_hdr { + /* wqe_count is part of the cqe. It is put here so the + * adapter can write to it while the wr is pending without + * clobbering part of the wr. This word need not be dma'd + * from the host to adapter by libccil, but we copy it anyway + * to make the memcpy to the adapter better aligned. + */ + u32 wqe_count; + + /* Put these fields next so that later 32- and 64-bit + * quantities are naturally aligned. + */ + u8 id; + u8 result; /* adapter -> host */ + u8 sge_count; /* host -> adapter */ + u8 flags; /* host -> adapter */ + + u64 context; +#ifdef CCMSGMAGIC + u32 magic; + u32 pad; +#endif +} __attribute__((packed)); + +/* + *------------------------ RNIC ------------------------ + */ + +/* + * WR_RNIC_OPEN + */ + +/* + * Flags for the RNIC WRs + */ +enum c2_rnic_flags { + RNIC_IRD_STATIC = 0x0001, + RNIC_ORD_STATIC = 0x0002, + RNIC_QP_STATIC = 0x0004, + RNIC_SRQ_SUPPORTED = 0x0008, + RNIC_PBL_BLOCK_MODE = 0x0010, + RNIC_SRQ_MODEL_ARRIVAL = 0x0020, + RNIC_CQ_OVF_DETECTED = 0x0040, + RNIC_PRIV_MODE = 0x0080 +}; + +struct c2wr_rnic_open_req { + struct c2wr_hdr hdr; + u64 user_context; + u16 flags; /* See enum c2_rnic_flags */ + u16 port_num; +} __attribute__((packed)); + +struct c2wr_rnic_open_rep { + struct c2wr_hdr hdr; + u32 rnic_handle; +} __attribute__((packed)); + +union c2wr_rnic_open { + struct c2wr_rnic_open_req req; + struct c2wr_rnic_open_rep rep; +} __attribute__((packed)); + +struct c2wr_rnic_query_req { + struct c2wr_hdr hdr; + u32 rnic_handle; +} __attribute__((packed)); + +/* + * WR_RNIC_QUERY + */ +struct c2wr_rnic_query_rep { + struct c2wr_hdr hdr; + u64 user_context; + u32 vendor_id; + u32 part_number; + u32 hw_version; + u32 fw_ver_major; + u32 fw_ver_minor; + u32 fw_ver_patch; + char fw_ver_build_str[WR_BUILD_STR_LEN]; + u32 max_qps; + u32 max_qp_depth; + u32 max_srq_depth; + u32 max_send_sgl_depth; + u32 max_rdma_sgl_depth; + u32 max_cqs; + u32 max_cq_depth; + u32 max_cq_event_handlers; + u32 max_mrs; + u32 max_pbl_depth; + u32 max_pds; + u32 max_global_ird; + u32 max_global_ord; + u32 max_qp_ird; + u32 max_qp_ord; + u32 flags; + u32 max_mws; + u32 pbe_range_low; + u32 pbe_range_high; + u32 max_srqs; + u32 page_size; +} __attribute__((packed)); + +union c2wr_rnic_query { + struct c2wr_rnic_query_req req; + struct c2wr_rnic_query_rep rep; +} __attribute__((packed)); + +/* + * WR_RNIC_GETCONFIG + */ + +struct c2wr_rnic_getconfig_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 option; /* see c2_getconfig_cmd_t */ + u64 reply_buf; + u32 reply_buf_len; +} __attribute__((packed)) ; + +struct c2wr_rnic_getconfig_rep { + struct c2wr_hdr hdr; + u32 option; /* see c2_getconfig_cmd_t */ + u32 count_len; /* length of the number of addresses configured */ +} __attribute__((packed)) ; + +union c2wr_rnic_getconfig { + struct c2wr_rnic_getconfig_req req; + struct c2wr_rnic_getconfig_rep rep; +} __attribute__((packed)) ; + +/* + * WR_RNIC_SETCONFIG + */ +struct c2wr_rnic_setconfig_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 option; /* See c2_setconfig_cmd_t */ + /* variable data and pad. See c2_netaddr and c2_route */ + u8 data[0]; +} __attribute__((packed)) ; + +struct c2wr_rnic_setconfig_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)) ; + +union c2wr_rnic_setconfig { + struct c2wr_rnic_setconfig_req req; + struct c2wr_rnic_setconfig_rep rep; +} __attribute__((packed)) ; + +/* + * WR_RNIC_CLOSE + */ +struct c2wr_rnic_close_req { + struct c2wr_hdr hdr; + u32 rnic_handle; +} __attribute__((packed)) ; + +struct c2wr_rnic_close_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)) ; + +union c2wr_rnic_close { + struct c2wr_rnic_close_req req; + struct c2wr_rnic_close_rep rep; +} __attribute__((packed)) ; + +/* + *------------------------ CQ ------------------------ + */ +struct c2wr_cq_create_req { + struct c2wr_hdr hdr; + u64 shared_ht; + u64 user_context; + u64 msg_pool; + u32 rnic_handle; + u32 msg_size; + u32 depth; +} __attribute__((packed)) ; + +struct c2wr_cq_create_rep { + struct c2wr_hdr hdr; + u32 mq_index; + u32 adapter_shared; + u32 cq_handle; +} __attribute__((packed)) ; + +union c2wr_cq_create { + struct c2wr_cq_create_req req; + struct c2wr_cq_create_rep rep; +} __attribute__((packed)) ; + +struct c2wr_cq_modify_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 cq_handle; + u32 new_depth; + u64 new_msg_pool; +} __attribute__((packed)) ; + +struct c2wr_cq_modify_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)) ; + +union c2wr_cq_modify { + struct c2wr_cq_modify_req req; + struct c2wr_cq_modify_rep rep; +} __attribute__((packed)) ; + +struct c2wr_cq_destroy_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 cq_handle; +} __attribute__((packed)) ; + +struct c2wr_cq_destroy_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)) ; + +union c2wr_cq_destroy { + struct c2wr_cq_destroy_req req; + struct c2wr_cq_destroy_rep rep; +} __attribute__((packed)) ; + +/* + *------------------------ PD ------------------------ + */ +struct c2wr_pd_alloc_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 pd_id; +} __attribute__((packed)) ; + +struct c2wr_pd_alloc_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)) ; + +union c2wr_pd_alloc { + struct c2wr_pd_alloc_req req; + struct c2wr_pd_alloc_rep rep; +} __attribute__((packed)) ; + +struct c2wr_pd_dealloc_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 pd_id; +} __attribute__((packed)) ; + +struct c2wr_pd_dealloc_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)) ; + +union c2wr_pd_dealloc { + struct c2wr_pd_dealloc_req req; + struct c2wr_pd_dealloc_rep rep; +} __attribute__((packed)) ; + +/* + *------------------------ SRQ ------------------------ + */ +struct c2wr_srq_create_req { + struct c2wr_hdr hdr; + u64 shared_ht; + u64 user_context; + u32 rnic_handle; + u32 srq_depth; + u32 srq_limit; + u32 sgl_depth; + u32 pd_id; +} __attribute__((packed)) ; + +struct c2wr_srq_create_rep { + struct c2wr_hdr hdr; + u32 srq_depth; + u32 sgl_depth; + u32 msg_size; + u32 mq_index; + u32 mq_start; + u32 srq_handle; +} __attribute__((packed)) ; + +union c2wr_srq_create { + struct c2wr_srq_create_req req; + struct c2wr_srq_create_rep rep; +} __attribute__((packed)) ; + +struct c2wr_srq_destroy_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 srq_handle; +} __attribute__((packed)) ; + +struct c2wr_srq_destroy_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)) ; + +union c2wr_srq_destroy { + struct c2wr_srq_destroy_req req; + struct c2wr_srq_destroy_rep rep; +} __attribute__((packed)) ; + +/* + *------------------------ QP ------------------------ + */ +enum c2wr_qp_flags { + QP_RDMA_READ = 0x00000001, /* RDMA read enabled? */ + QP_RDMA_WRITE = 0x00000002, /* RDMA write enabled? */ + QP_MW_BIND = 0x00000004, /* MWs enabled */ + QP_ZERO_STAG = 0x00000008, /* enabled? */ + QP_REMOTE_TERMINATION = 0x00000010, /* remote end terminated */ + QP_RDMA_READ_RESPONSE = 0x00000020 /* Remote RDMA read */ + /* enabled? */ +}; + +struct c2wr_qp_create_req { + struct c2wr_hdr hdr; + u64 shared_sq_ht; + u64 shared_rq_ht; + u64 user_context; + u32 rnic_handle; + u32 sq_cq_handle; + u32 rq_cq_handle; + u32 sq_depth; + u32 rq_depth; + u32 srq_handle; + u32 srq_limit; + u32 flags; /* see enum c2wr_qp_flags */ + u32 send_sgl_depth; + u32 recv_sgl_depth; + u32 rdma_write_sgl_depth; + u32 ord; + u32 ird; + u32 pd_id; +} __attribute__((packed)) ; + +struct c2wr_qp_create_rep { + struct c2wr_hdr hdr; + u32 sq_depth; + u32 rq_depth; + u32 send_sgl_depth; + u32 recv_sgl_depth; + u32 rdma_write_sgl_depth; + u32 ord; + u32 ird; + u32 sq_msg_size; + u32 sq_mq_index; + u32 sq_mq_start; + u32 rq_msg_size; + u32 rq_mq_index; + u32 rq_mq_start; + u32 qp_handle; +} __attribute__((packed)) ; + +union c2wr_qp_create { + struct c2wr_qp_create_req req; + struct c2wr_qp_create_rep rep; +} __attribute__((packed)) ; + +struct c2wr_qp_query_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 qp_handle; +} __attribute__((packed)) ; + +struct c2wr_qp_query_rep { + struct c2wr_hdr hdr; + u64 user_context; + u32 rnic_handle; + u32 sq_depth; + u32 rq_depth; + u32 send_sgl_depth; + u32 rdma_write_sgl_depth; + u32 recv_sgl_depth; + u32 ord; + u32 ird; + u16 qp_state; + u16 flags; /* see c2wr_qp_flags_t */ + u32 qp_id; + u32 local_addr; + u32 remote_addr; + u16 local_port; + u16 remote_port; + u32 terminate_msg_length; /* 0 if not present */ + u8 data[0]; + /* Terminate Message in-line here. */ +} __attribute__((packed)) ; + +union c2wr_qp_query { + struct c2wr_qp_query_req req; + struct c2wr_qp_query_rep rep; +} __attribute__((packed)) ; + +struct c2wr_qp_modify_req { + struct c2wr_hdr hdr; + u64 stream_msg; + u32 stream_msg_length; + u32 rnic_handle; + u32 qp_handle; + u32 next_qp_state; + u32 ord; + u32 ird; + u32 sq_depth; + u32 rq_depth; + u32 llp_ep_handle; +} __attribute__((packed)) ; + +struct c2wr_qp_modify_rep { + struct c2wr_hdr hdr; + u32 ord; + u32 ird; + u32 sq_depth; + u32 rq_depth; + u32 sq_msg_size; + u32 sq_mq_index; + u32 sq_mq_start; + u32 rq_msg_size; + u32 rq_mq_index; + u32 rq_mq_start; +} __attribute__((packed)) ; + +union c2wr_qp_modify { + struct c2wr_qp_modify_req req; + struct c2wr_qp_modify_rep rep; +} __attribute__((packed)) ; + +struct c2wr_qp_destroy_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 qp_handle; +} __attribute__((packed)) ; + +struct c2wr_qp_destroy_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)) ; + +union c2wr_qp_destroy { + struct c2wr_qp_destroy_req req; + struct c2wr_qp_destroy_rep rep; +} __attribute__((packed)) ; + +/* + * The CCWR_QP_CONNECT msg is posted on the verbs request queue. It can + * only be posted when a QP is in IDLE state. After the connect request is + * submitted to the LLP, the adapter moves the QP to CONNECT_PENDING state. + * No synchronous reply from adapter to this WR. The results of + * connection are passed back in an async event CCAE_ACTIVE_CONNECT_RESULTS + * See c2wr_ae_active_connect_results_t + */ +struct c2wr_qp_connect_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 qp_handle; + u32 remote_addr; + u16 remote_port; + u16 pad; + u32 private_data_length; + u8 private_data[0]; /* Private data in-line. */ +} __attribute__((packed)) ; + +struct c2wr_qp_connect { + struct c2wr_qp_connect_req req; + /* no synchronous reply. */ +} __attribute__((packed)) ; + + +/* + *------------------------ MM ------------------------ + */ + +struct c2wr_nsmr_stag_alloc_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 pbl_depth; + u32 pd_id; + u32 flags; +} __attribute__((packed)) ; + +struct c2wr_nsmr_stag_alloc_rep { + struct c2wr_hdr hdr; + u32 pbl_depth; + u32 stag_index; +} __attribute__((packed)) ; + +union c2wr_nsmr_stag_alloc { + struct c2wr_nsmr_stag_alloc_req req; + struct c2wr_nsmr_stag_alloc_rep rep; +} __attribute__((packed)) ; + +struct c2wr_nsmr_register_req { + struct c2wr_hdr hdr; + u64 va; + u32 rnic_handle; + u16 flags; + u8 stag_key; + u8 pad; + u32 pd_id; + u32 pbl_depth; + u32 pbe_size; + u32 fbo; + u32 length; + u32 addrs_length; + /* array of paddrs (must be aligned on a 64bit boundary) */ + u64 paddrs[0]; +} __attribute__((packed)) ; + +struct c2wr_nsmr_register_rep { + struct c2wr_hdr hdr; + u32 pbl_depth; + u32 stag_index; +} __attribute__((packed)) ; + +union c2wr_nsmr_register { + struct c2wr_nsmr_register_req req; + struct c2wr_nsmr_register_rep rep; +} __attribute__((packed)) ; + +struct c2wr_nsmr_pbl_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 flags; + u32 stag_index; + u32 addrs_length; + /* array of paddrs (must be aligned on a 64bit boundary) */ + u64 paddrs[0]; +} __attribute__((packed)) ; + +struct c2wr_nsmr_pbl_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)) ; + +union c2wr_nsmr_pbl { + struct c2wr_nsmr_pbl_req req; + struct c2wr_nsmr_pbl_rep rep; +} __attribute__((packed)) ; + +struct c2wr_mr_query_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 stag_index; +} __attribute__((packed)) ; + +struct c2wr_mr_query_rep { + struct c2wr_hdr hdr; + u8 stag_key; + u8 pad[3]; + u32 pd_id; + u32 flags; + u32 pbl_depth; +} __attribute__((packed)) ; + +union c2wr_mr_query { + struct c2wr_mr_query_req req; + struct c2wr_mr_query_rep rep; +} __attribute__((packed)) ; + +struct c2wr_mw_query_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 stag_index; +} __attribute__((packed)) ; + +struct c2wr_mw_query_rep { + struct c2wr_hdr hdr; + u8 stag_key; + u8 pad[3]; + u32 pd_id; + u32 flags; +} __attribute__((packed)) ; + +union c2wr_mw_query { + struct c2wr_mw_query_req req; + struct c2wr_mw_query_rep rep; +} __attribute__((packed)) ; + + +struct c2wr_stag_dealloc_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 stag_index; +} __attribute__((packed)) ; + +struct c2wr_stag_dealloc_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)) ; + +union c2wr_stag_dealloc { + struct c2wr_stag_dealloc_req req; + struct c2wr_stag_dealloc_rep rep; +} __attribute__((packed)) ; + +struct c2wr_nsmr_reregister_req { + struct c2wr_hdr hdr; + u64 va; + u32 rnic_handle; + u16 flags; + u8 stag_key; + u8 pad; + u32 stag_index; + u32 pd_id; + u32 pbl_depth; + u32 pbe_size; + u32 fbo; + u32 length; + u32 addrs_length; + u32 pad1; + /* array of paddrs (must be aligned on a 64bit boundary) */ + u64 paddrs[0]; +} __attribute__((packed)) ; + +struct c2wr_nsmr_reregister_rep { + struct c2wr_hdr hdr; + u32 pbl_depth; + u32 stag_index; +} __attribute__((packed)) ; + +union c2wr_nsmr_reregister { + struct c2wr_nsmr_reregister_req req; + struct c2wr_nsmr_reregister_rep rep; +} __attribute__((packed)) ; + +struct c2wr_smr_register_req { + struct c2wr_hdr hdr; + u64 va; + u32 rnic_handle; + u16 flags; + u8 stag_key; + u8 pad; + u32 stag_index; + u32 pd_id; +} __attribute__((packed)) ; + +struct c2wr_smr_register_rep { + struct c2wr_hdr hdr; + u32 stag_index; +} __attribute__((packed)) ; + +union c2wr_smr_register { + struct c2wr_smr_register_req req; + struct c2wr_smr_register_rep rep; +} __attribute__((packed)) ; + +struct c2wr_mw_alloc_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 pd_id; +} __attribute__((packed)) ; + +struct c2wr_mw_alloc_rep { + struct c2wr_hdr hdr; + u32 stag_index; +} __attribute__((packed)) ; + +union c2wr_mw_alloc { + struct c2wr_mw_alloc_req req; + struct c2wr_mw_alloc_rep rep; +} __attribute__((packed)) ; + +/* + *------------------------ WRs ----------------------- + */ + +struct c2wr_user_hdr { + struct c2wr_hdr hdr; /* Has status and WR Type */ +} __attribute__((packed)) ; + +enum c2_qp_state { + C2_QP_STATE_IDLE = 0x01, + C2_QP_STATE_CONNECTING = 0x02, + C2_QP_STATE_RTS = 0x04, + C2_QP_STATE_CLOSING = 0x08, + C2_QP_STATE_TERMINATE = 0x10, + C2_QP_STATE_ERROR = 0x20, +}; + +/* Completion queue entry. */ +struct c2wr_ce { + struct c2wr_hdr hdr; /* Has status and WR Type */ + u64 qp_user_context; /* c2_user_qp_t * */ + u32 qp_state; /* Current QP State */ + u32 handle; /* QPID or EP Handle */ + u32 bytes_rcvd; /* valid for RECV WCs */ + u32 stag; +} __attribute__((packed)) ; + + +/* + * Flags used for all post-sq WRs. These must fit in the flags + * field of the struct c2wr_hdr (eight bits). + */ +enum { + SQ_SIGNALED = 0x01, + SQ_READ_FENCE = 0x02, + SQ_FENCE = 0x04, +}; + +/* + * Common fields for all post-sq WRs. Namely the standard header and a + * secondary header with fields common to all post-sq WRs. + */ +struct c2_sq_hdr { + struct c2wr_user_hdr user_hdr; +} __attribute__((packed)); + +/* + * Same as above but for post-rq WRs. + */ +struct c2_rq_hdr { + struct c2wr_user_hdr user_hdr; +} __attribute__((packed)); + +/* + * use the same struct for all sends. + */ +struct c2wr_send_req { + struct c2_sq_hdr sq_hdr; + u32 sge_len; + u32 remote_stag; + u8 data[0]; /* SGE array */ +} __attribute__((packed)); + +union c2wr_send { + struct c2wr_send_req req; + struct c2wr_ce rep; +} __attribute__((packed)); + +struct c2wr_rdma_write_req { + struct c2_sq_hdr sq_hdr; + u64 remote_to; + u32 remote_stag; + u32 sge_len; + u8 data[0]; /* SGE array */ +} __attribute__((packed)); + +union c2wr_rdma_write { + struct c2wr_rdma_write_req req; + struct c2wr_ce rep; +} __attribute__((packed)); + +struct c2wr_rdma_read_req { + struct c2_sq_hdr sq_hdr; + u64 local_to; + u64 remote_to; + u32 local_stag; + u32 remote_stag; + u32 length; +} __attribute__((packed)); + +union c2wr_rdma_read { + struct c2wr_rdma_read_req req; + struct c2wr_ce rep; +} __attribute__((packed)); + +struct c2wr_mw_bind_req { + struct c2_sq_hdr sq_hdr; + u64 va; + u8 stag_key; + u8 pad[3]; + u32 mw_stag_index; + u32 mr_stag_index; + u32 length; + u32 flags; +} __attribute__((packed)); + +union c2wr_mw_bind { + struct c2wr_mw_bind_req req; + struct c2wr_ce rep; +} __attribute__((packed)); + +struct c2wr_nsmr_fastreg_req { + struct c2_sq_hdr sq_hdr; + u64 va; + u8 stag_key; + u8 pad[3]; + u32 stag_index; + u32 pbe_size; + u32 fbo; + u32 length; + u32 addrs_length; + /* array of paddrs (must be aligned on a 64bit boundary) */ + u64 paddrs[0]; +} __attribute__((packed)); + +union c2wr_nsmr_fastreg { + struct c2wr_nsmr_fastreg_req req; + struct c2wr_ce rep; +} __attribute__((packed)); + +struct c2wr_stag_invalidate_req { + struct c2_sq_hdr sq_hdr; + u8 stag_key; + u8 pad[3]; + u32 stag_index; +} __attribute__((packed)); + +union c2wr_stag_invalidate { + struct c2wr_stag_invalidate_req req; + struct c2wr_ce rep; +} __attribute__((packed)); + +union c2wr_sqwr { + struct c2_sq_hdr sq_hdr; + struct c2wr_send_req send; + struct c2wr_send_req send_se; + struct c2wr_send_req send_inv; + struct c2wr_send_req send_se_inv; + struct c2wr_rdma_write_req rdma_write; + struct c2wr_rdma_read_req rdma_read; + struct c2wr_mw_bind_req mw_bind; + struct c2wr_nsmr_fastreg_req nsmr_fastreg; + struct c2wr_stag_invalidate_req stag_inv; +} __attribute__((packed)); + + +/* + * RQ WRs + */ +struct c2wr_rqwr { + struct c2_rq_hdr rq_hdr; + u8 data[0]; /* array of SGEs */ +} __attribute__((packed)); + +union c2wr_recv { + struct c2wr_rqwr req; + struct c2wr_ce rep; +} __attribute__((packed)); + +/* + * All AEs start with this header. Most AEs only need to convey the + * information in the header. Some, like LLP connection events, need + * more info. The union typdef c2wr_ae_t has all the possible AEs. + * + * hdr.context is the user_context from the rnic_open WR. NULL If this + * is not affiliated with an rnic + * + * hdr.id is the AE identifier (eg; CCAE_REMOTE_SHUTDOWN, + * CCAE_LLP_CLOSE_COMPLETE) + * + * resource_type is one of: C2_RES_IND_QP, C2_RES_IND_CQ, C2_RES_IND_SRQ + * + * user_context is the context passed down when the host created the resource. + */ +struct c2wr_ae_hdr { + struct c2wr_hdr hdr; + u64 user_context; /* user context for this res. */ + u32 resource_type; /* see enum c2_resource_indicator */ + u32 resource; /* handle for resource */ + u32 qp_state; /* current QP State */ +} __attribute__((packed)); + +/* + * After submitting the CCAE_ACTIVE_CONNECT_RESULTS message on the AEQ, + * the adapter moves the QP into RTS state + */ +struct c2wr_ae_active_connect_results { + struct c2wr_ae_hdr ae_hdr; + u32 laddr; + u32 raddr; + u16 lport; + u16 rport; + u32 private_data_length; + u8 private_data[0]; /* data is in-line in the msg. */ +} __attribute__((packed)); + +/* + * When connections are established by the stack (and the private data + * MPA frame is received), the adapter will generate an event to the host. + * The details of the connection, any private data, and the new connection + * request handle is passed up via the CCAE_CONNECTION_REQUEST msg on the + * AE queue: + */ +struct c2wr_ae_connection_request { + struct c2wr_ae_hdr ae_hdr; + u32 cr_handle; /* connreq handle (sock ptr) */ + u32 laddr; + u32 raddr; + u16 lport; + u16 rport; + u32 private_data_length; + u8 private_data[0]; /* data is in-line in the msg. */ +} __attribute__((packed)); + +union c2wr_ae { + struct c2wr_ae_hdr ae_generic; + struct c2wr_ae_active_connect_results ae_active_connect_results; + struct c2wr_ae_connection_request ae_connection_request; +} __attribute__((packed)); + +struct c2wr_init_req { + struct c2wr_hdr hdr; + u64 hint_count; + u64 q0_host_shared; + u64 q1_host_shared; + u64 q1_host_msg_pool; + u64 q2_host_shared; + u64 q2_host_msg_pool; +} __attribute__((packed)); + +struct c2wr_init_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)); + +union c2wr_init { + struct c2wr_init_req req; + struct c2wr_init_rep rep; +} __attribute__((packed)); + +/* + * For upgrading flash. + */ + +struct c2wr_flash_init_req { + struct c2wr_hdr hdr; + u32 rnic_handle; +} __attribute__((packed)); + +struct c2wr_flash_init_rep { + struct c2wr_hdr hdr; + u32 adapter_flash_buf_offset; + u32 adapter_flash_len; +} __attribute__((packed)); + +union c2wr_flash_init { + struct c2wr_flash_init_req req; + struct c2wr_flash_init_rep rep; +} __attribute__((packed)); + +struct c2wr_flash_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 len; +} __attribute__((packed)); + +struct c2wr_flash_rep { + struct c2wr_hdr hdr; + u32 status; +} __attribute__((packed)); + +union c2wr_flash { + struct c2wr_flash_req req; + struct c2wr_flash_rep rep; +} __attribute__((packed)); + +struct c2wr_buf_alloc_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 size; +} __attribute__((packed)); + +struct c2wr_buf_alloc_rep { + struct c2wr_hdr hdr; + u32 offset; /* 0 if mem not available */ + u32 size; /* 0 if mem not available */ +} __attribute__((packed)); + +union c2wr_buf_alloc { + struct c2wr_buf_alloc_req req; + struct c2wr_buf_alloc_rep rep; +} __attribute__((packed)); + +struct c2wr_buf_free_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 offset; /* Must match value from alloc */ + u32 size; /* Must match value from alloc */ +} __attribute__((packed)); + +struct c2wr_buf_free_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)); + +union c2wr_buf_free { + struct c2wr_buf_free_req req; + struct c2wr_ce rep; +} __attribute__((packed)); + +struct c2wr_flash_write_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 offset; + u32 size; + u32 type; + u32 flags; +} __attribute__((packed)); + +struct c2wr_flash_write_rep { + struct c2wr_hdr hdr; + u32 status; +} __attribute__((packed)); + +union c2wr_flash_write { + struct c2wr_flash_write_req req; + struct c2wr_flash_write_rep rep; +} __attribute__((packed)); + +/* + * Messages for LLP connection setup. + */ + +/* + * Listen Request. This allocates a listening endpoint to allow passive + * connection setup. Newly established LLP connections are passed up + * via an AE. See c2wr_ae_connection_request_t + */ +struct c2wr_ep_listen_create_req { + struct c2wr_hdr hdr; + u64 user_context; /* returned in AEs. */ + u32 rnic_handle; + u32 local_addr; /* local addr, or 0 */ + u16 local_port; /* 0 means "pick one" */ + u16 pad; + u32 backlog; /* tradional tcp listen bl */ +} __attribute__((packed)); + +struct c2wr_ep_listen_create_rep { + struct c2wr_hdr hdr; + u32 ep_handle; /* handle to new listening ep */ + u16 local_port; /* resulting port... */ + u16 pad; +} __attribute__((packed)); + +union c2wr_ep_listen_create { + struct c2wr_ep_listen_create_req req; + struct c2wr_ep_listen_create_rep rep; +} __attribute__((packed)); + +struct c2wr_ep_listen_destroy_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 ep_handle; +} __attribute__((packed)); + +struct c2wr_ep_listen_destroy_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)); + +union c2wr_ep_listen_destroy { + struct c2wr_ep_listen_destroy_req req; + struct c2wr_ep_listen_destroy_rep rep; +} __attribute__((packed)); + +struct c2wr_ep_query_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 ep_handle; +} __attribute__((packed)); + +struct c2wr_ep_query_rep { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 local_addr; + u32 remote_addr; + u16 local_port; + u16 remote_port; +} __attribute__((packed)); + +union c2wr_ep_query { + struct c2wr_ep_query_req req; + struct c2wr_ep_query_rep rep; +} __attribute__((packed)); + + +/* + * The host passes this down to indicate acceptance of a pending iWARP + * connection. The cr_handle was obtained from the CONNECTION_REQUEST + * AE passed up by the adapter. See c2wr_ae_connection_request_t. + */ +struct c2wr_cr_accept_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 qp_handle; /* QP to bind to this LLP conn */ + u32 ep_handle; /* LLP handle to accept */ + u32 private_data_length; + u8 private_data[0]; /* data in-line in msg. */ +} __attribute__((packed)); + +/* + * adapter sends reply when private data is successfully submitted to + * the LLP. + */ +struct c2wr_cr_accept_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)); + +union c2wr_cr_accept { + struct c2wr_cr_accept_req req; + struct c2wr_cr_accept_rep rep; +} __attribute__((packed)); + +/* + * The host sends this down if a given iWARP connection request was + * rejected by the consumer. The cr_handle was obtained from a + * previous c2wr_ae_connection_request_t AE sent by the adapter. + */ +struct c2wr_cr_reject_req { + struct c2wr_hdr hdr; + u32 rnic_handle; + u32 ep_handle; /* LLP handle to reject */ +} __attribute__((packed)); + +/* + * Dunno if this is needed, but we'll add it for now. The adapter will + * send the reject_reply after the LLP endpoint has been destroyed. + */ +struct c2wr_cr_reject_rep { + struct c2wr_hdr hdr; +} __attribute__((packed)); + +union c2wr_cr_reject { + struct c2wr_cr_reject_req req; + struct c2wr_cr_reject_rep rep; +} __attribute__((packed)); + +/* + * console command. Used to implement a debug console over the verbs + * request and reply queues. + */ + +/* + * Console request message. It contains: + * - message hdr with id = CCWR_CONSOLE + * - the physaddr/len of host memory to be used for the reply. + * - the command string. eg: "netstat -s" or "zoneinfo" + */ +struct c2wr_console_req { + struct c2wr_hdr hdr; /* id = CCWR_CONSOLE */ + u64 reply_buf; /* pinned host buf for reply */ + u32 reply_buf_len; /* length of reply buffer */ + u8 command[0]; /* NUL terminated ascii string */ + /* containing the command req */ +} __attribute__((packed)); + +/* + * flags used in the console reply. + */ +enum c2_console_flags { + CONS_REPLY_TRUNCATED = 0x00000001 /* reply was truncated */ +} __attribute__((packed)); + +/* + * Console reply message. + * hdr.result contains the c2_status_t error if the reply was _not_ generated, + * or C2_OK if the reply was generated. + */ +struct c2wr_console_rep { + struct c2wr_hdr hdr; /* id = CCWR_CONSOLE */ + u32 flags; +} __attribute__((packed)); + +union c2wr_console { + struct c2wr_console_req req; + struct c2wr_console_rep rep; +} __attribute__((packed)); + + +/* + * Giant union with all WRs. Makes life easier... + */ +union c2wr { + struct c2wr_hdr hdr; + struct c2wr_user_hdr user_hdr; + union c2wr_rnic_open rnic_open; + union c2wr_rnic_query rnic_query; + union c2wr_rnic_getconfig rnic_getconfig; + union c2wr_rnic_setconfig rnic_setconfig; + union c2wr_rnic_close rnic_close; + union c2wr_cq_create cq_create; + union c2wr_cq_modify cq_modify; + union c2wr_cq_destroy cq_destroy; + union c2wr_pd_alloc pd_alloc; + union c2wr_pd_dealloc pd_dealloc; + union c2wr_srq_create srq_create; + union c2wr_srq_destroy srq_destroy; + union c2wr_qp_create qp_create; + union c2wr_qp_query qp_query; + union c2wr_qp_modify qp_modify; + union c2wr_qp_destroy qp_destroy; + struct c2wr_qp_connect qp_connect; + union c2wr_nsmr_stag_alloc nsmr_stag_alloc; + union c2wr_nsmr_register nsmr_register; + union c2wr_nsmr_pbl nsmr_pbl; + union c2wr_mr_query mr_query; + union c2wr_mw_query mw_query; + union c2wr_stag_dealloc stag_dealloc; + union c2wr_sqwr sqwr; + struct c2wr_rqwr rqwr; + struct c2wr_ce ce; + union c2wr_ae ae; + union c2wr_init init; + union c2wr_ep_listen_create ep_listen_create; + union c2wr_ep_listen_destroy ep_listen_destroy; + union c2wr_cr_accept cr_accept; + union c2wr_cr_reject cr_reject; + union c2wr_console console; + union c2wr_flash_init flash_init; + union c2wr_flash flash; + union c2wr_buf_alloc buf_alloc; + union c2wr_buf_free buf_free; + union c2wr_flash_write flash_write; +} __attribute__((packed)); + + +/* + * Accessors for the wr fields that are packed together tightly to + * reduce the wr message size. The wr arguments are void* so that + * either a struct c2wr*, a struct c2wr_hdr*, or a pointer to any of the types + * in the struct c2wr union can be passed in. + */ +static __inline__ u8 c2_wr_get_id(void *wr) +{ + return ((struct c2wr_hdr *) wr)->id; +} +static __inline__ void c2_wr_set_id(void *wr, u8 id) +{ + ((struct c2wr_hdr *) wr)->id = id; +} +static __inline__ u8 c2_wr_get_result(void *wr) +{ + return ((struct c2wr_hdr *) wr)->result; +} +static __inline__ void c2_wr_set_result(void *wr, u8 result) +{ + ((struct c2wr_hdr *) wr)->result = result; +} +static __inline__ u8 c2_wr_get_flags(void *wr) +{ + return ((struct c2wr_hdr *) wr)->flags; +} +static __inline__ void c2_wr_set_flags(void *wr, u8 flags) +{ + ((struct c2wr_hdr *) wr)->flags = flags; +} +static __inline__ u8 c2_wr_get_sge_count(void *wr) +{ + return ((struct c2wr_hdr *) wr)->sge_count; +} +static __inline__ void c2_wr_set_sge_count(void *wr, u8 sge_count) +{ + ((struct c2wr_hdr *) wr)->sge_count = sge_count; +} +static __inline__ u32 c2_wr_get_wqe_count(void *wr) +{ + return ((struct c2wr_hdr *) wr)->wqe_count; +} +static __inline__ void c2_wr_set_wqe_count(void *wr, u32 wqe_count) +{ + ((struct c2wr_hdr *) wr)->wqe_count = wqe_count; +} + +#endif /* _C2_WR_H_ */ -- cgit v1.2.3-70-g09d2 From 61a73c708f37295892176bc911b178278df6a091 Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Fri, 1 Sep 2006 15:33:55 -0700 Subject: RDMA/cma: Protect against adding device during destruction Closes a window where address resolution can attach an rdma_cm_id to a device during destruction of the rdma_cm_id. This can result in the rdma_cm_id remaining in the device list after its memory has been freed. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- drivers/infiniband/core/cma.c | 34 ++++++++++++++++++++++++++-------- 1 file changed, 26 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index e88a7c652ca..488fa1d642a 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -279,7 +279,7 @@ static int cma_acquire_dev(struct rdma_id_private *id_priv) default: return -ENODEV; } - mutex_lock(&lock); + list_for_each_entry(cma_dev, &dev_list, list) { ret = ib_find_cached_gid(cma_dev->device, &gid, &id_priv->id.port_num, NULL); @@ -288,7 +288,6 @@ static int cma_acquire_dev(struct rdma_id_private *id_priv) break; } } - mutex_unlock(&lock); return ret; } @@ -712,7 +711,9 @@ void rdma_destroy_id(struct rdma_cm_id *id) state = cma_exch(id_priv, CMA_DESTROYING); cma_cancel_operation(id_priv, state); + mutex_lock(&lock); if (id_priv->cma_dev) { + mutex_unlock(&lock); switch (rdma_node_get_transport(id->device->node_type)) { case RDMA_TRANSPORT_IB: if (id_priv->cm_id.ib && !IS_ERR(id_priv->cm_id.ib)) @@ -727,8 +728,8 @@ void rdma_destroy_id(struct rdma_cm_id *id) } mutex_lock(&lock); cma_detach_from_dev(id_priv); - mutex_unlock(&lock); } + mutex_unlock(&lock); cma_release_port(id_priv); cma_deref_id(id_priv); @@ -925,7 +926,9 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event) } atomic_inc(&conn_id->dev_remove); + mutex_lock(&lock); ret = cma_acquire_dev(conn_id); + mutex_unlock(&lock); if (ret) { ret = -ENODEV; cma_release_remove(conn_id); @@ -1097,7 +1100,9 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id, goto out; } + mutex_lock(&lock); ret = cma_acquire_dev(conn_id); + mutex_unlock(&lock); if (ret) { cma_release_remove(conn_id); rdma_destroy_id(new_cm_id); @@ -1507,16 +1512,26 @@ static void addr_handler(int status, struct sockaddr *src_addr, enum rdma_cm_event_type event; atomic_inc(&id_priv->dev_remove); - if (!id_priv->cma_dev && !status) + + /* + * Grab mutex to block rdma_destroy_id() from removing the device while + * we're trying to acquire it. + */ + mutex_lock(&lock); + if (!cma_comp_exch(id_priv, CMA_ADDR_QUERY, CMA_ADDR_RESOLVED)) { + mutex_unlock(&lock); + goto out; + } + + if (!status && !id_priv->cma_dev) status = cma_acquire_dev(id_priv); + mutex_unlock(&lock); if (status) { - if (!cma_comp_exch(id_priv, CMA_ADDR_QUERY, CMA_ADDR_BOUND)) + if (!cma_comp_exch(id_priv, CMA_ADDR_RESOLVED, CMA_ADDR_BOUND)) goto out; event = RDMA_CM_EVENT_ADDR_ERROR; } else { - if (!cma_comp_exch(id_priv, CMA_ADDR_QUERY, CMA_ADDR_RESOLVED)) - goto out; memcpy(&id_priv->id.route.addr.src_addr, src_addr, ip_addr_size(src_addr)); event = RDMA_CM_EVENT_ADDR_RESOLVED; @@ -1740,8 +1755,11 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr) if (!cma_any_addr(addr)) { ret = rdma_translate_ip(addr, &id->route.addr.dev_addr); - if (!ret) + if (!ret) { + mutex_lock(&lock); ret = cma_acquire_dev(id_priv); + mutex_unlock(&lock); + } if (ret) goto err; } -- cgit v1.2.3-70-g09d2 From 777a71dd4d901f055967ddbd038d2a74ffce0eb8 Mon Sep 17 00:00:00 2001 From: Erez Zilber Date: Mon, 11 Sep 2006 12:19:17 +0300 Subject: IB/iser: fix a check of SG alignment for RDMA dma mapping may include a "compaction" of the sg associated with scsi command. Hence, the size of the maximal prefix of the SG which is aligned for rdma must be compared against the length of the dma mapped sg (mem->dma_nents) and not against the size of it before it was mapped (mem->size). Signed-off-by: Erez Zilber Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/iser/iser_memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c index 31950a522a1..53af9567632 100644 --- a/drivers/infiniband/ulp/iser/iser_memory.c +++ b/drivers/infiniband/ulp/iser/iser_memory.c @@ -378,7 +378,7 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask, regd_buf = &iser_ctask->rdma_regd[cmd_dir]; aligned_len = iser_data_buf_aligned_len(mem); - if (aligned_len != mem->size) { + if (aligned_len != mem->dma_nents) { iser_err("rdma alignment violation %d/%d aligned\n", aligned_len, mem->size); iser_data_buf_dump(mem); -- cgit v1.2.3-70-g09d2 From 8072ec2f8f6790df91e85d833e672c9c30a7ab3c Mon Sep 17 00:00:00 2001 From: Erez Zilber Date: Mon, 11 Sep 2006 12:20:54 +0300 Subject: IB/iser: Limit the max size of a scsi command Currently, the data length of a command coming down from scsi-ml is limited only by the size of its sg list (sg_tablesize). The max data length may be different for different page size values. By setting max_sectors, we limit the data length to max_sectors*512 bytes. Signed-off-by: Erez Zilber Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/iser/iscsi_iser.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 1437d7ee3b1..e9cf1a9f1e1 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -555,6 +555,7 @@ static struct scsi_host_template iscsi_iser_sht = { .queuecommand = iscsi_queuecommand, .can_queue = ISCSI_XMIT_CMDS_MAX - 1, .sg_tablesize = ISCSI_ISER_SG_TABLESIZE, + .max_sectors = 1024, .cmd_per_lun = ISCSI_MAX_CMD_PER_LUN, .eh_abort_handler = iscsi_eh_abort, .eh_host_reset_handler = iscsi_eh_host_reset, -- cgit v1.2.3-70-g09d2 From 8dfa0876d3dde5f9c1818a4c35caaabc3ddba78b Mon Sep 17 00:00:00 2001 From: Erez Zilber Date: Mon, 11 Sep 2006 12:22:30 +0300 Subject: IB/iser: make FMR "page size" be 4K and not PAGE_SIZE As iser is able to use at most one rdma operation for the execution of a scsi command, and registration of the sg associated with scsi command has its restrictions, the code checks if an sg is "aligned for rdma". Alignment for rdma is measured in "fmr page" units whose possible resolutions are different between HCAs and can be smaller, equal or bigger to the system page size. When the system page size is bigger than 4KB (eg the default with ia64 kernels) there a bigger chance that an sg would be aligned for rdma if the fmr page size is 4KB. Change the code to create FMR whose pages are of size 4KB and to take that into account when processing the sg. Signed-off-by: Erez Zilber Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/iser/iscsi_iser.h | 6 +++++- drivers/infiniband/ulp/iser/iser_memory.c | 31 ++++++++++++++++++++----------- drivers/infiniband/ulp/iser/iser_verbs.c | 4 ++-- 3 files changed, 27 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index 3350ba690cf..0ba02abb041 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -82,8 +82,12 @@ __func__ , ## arg); \ } while (0) +#define SHIFT_4K 12 +#define SIZE_4K (1UL << SHIFT_4K) +#define MASK_4K (~(SIZE_4K-1)) + /* support upto 512KB in one RDMA */ -#define ISCSI_ISER_SG_TABLESIZE (0x80000 >> PAGE_SHIFT) +#define ISCSI_ISER_SG_TABLESIZE (0x80000 >> SHIFT_4K) #define ISCSI_ISER_MAX_LUN 256 #define ISCSI_ISER_MAX_CMD_LEN 16 diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c index 53af9567632..bcef0d31f75 100644 --- a/drivers/infiniband/ulp/iser/iser_memory.c +++ b/drivers/infiniband/ulp/iser/iser_memory.c @@ -42,6 +42,7 @@ #include "iscsi_iser.h" #define ISER_KMALLOC_THRESHOLD 0x20000 /* 128K - kmalloc limit */ + /** * Decrements the reference count for the * registered buffer & releases it @@ -239,7 +240,7 @@ static int iser_sg_to_page_vec(struct iser_data_buf *data, int i; /* compute the offset of first element */ - page_vec->offset = (u64) sg[0].offset; + page_vec->offset = (u64) sg[0].offset & ~MASK_4K; for (i = 0; i < data->dma_nents; i++) { total_sz += sg_dma_len(&sg[i]); @@ -247,21 +248,30 @@ static int iser_sg_to_page_vec(struct iser_data_buf *data, first_addr = sg_dma_address(&sg[i]); last_addr = first_addr + sg_dma_len(&sg[i]); - start_aligned = !(first_addr & ~PAGE_MASK); - end_aligned = !(last_addr & ~PAGE_MASK); + start_aligned = !(first_addr & ~MASK_4K); + end_aligned = !(last_addr & ~MASK_4K); /* continue to collect page fragments till aligned or SG ends */ while (!end_aligned && (i + 1 < data->dma_nents)) { i++; total_sz += sg_dma_len(&sg[i]); last_addr = sg_dma_address(&sg[i]) + sg_dma_len(&sg[i]); - end_aligned = !(last_addr & ~PAGE_MASK); + end_aligned = !(last_addr & ~MASK_4K); } - first_addr = first_addr & PAGE_MASK; - - for (page = first_addr; page < last_addr; page += PAGE_SIZE) - page_vec->pages[cur_page++] = page; + /* handle the 1st page in the 1st DMA element */ + if (cur_page == 0) { + page = first_addr & MASK_4K; + page_vec->pages[cur_page] = page; + cur_page++; + page += SIZE_4K; + } else + page = first_addr; + + for (; page < last_addr; page += SIZE_4K) { + page_vec->pages[cur_page] = page; + cur_page++; + } } page_vec->data_size = total_sz; @@ -269,8 +279,7 @@ static int iser_sg_to_page_vec(struct iser_data_buf *data, return cur_page; } -#define MASK_4K ((1UL << 12) - 1) /* 0xFFF */ -#define IS_4K_ALIGNED(addr) ((((unsigned long)addr) & MASK_4K) == 0) +#define IS_4K_ALIGNED(addr) ((((unsigned long)addr) & ~MASK_4K) == 0) /** * iser_data_buf_aligned_len - Tries to determine the maximal correctly aligned @@ -352,7 +361,7 @@ static void iser_page_vec_build(struct iser_data_buf *data, page_vec->length = page_vec_len; - if (page_vec_len * PAGE_SIZE < page_vec->data_size) { + if (page_vec_len * SIZE_4K < page_vec->data_size) { iser_err("page_vec too short to hold this SG\n"); iser_data_buf_dump(data); iser_dump_page_vec(page_vec); diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 72febf1f8ff..9b27a7c26aa 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -150,7 +150,7 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn) } ib_conn->page_vec->pages = (u64 *) (ib_conn->page_vec + 1); - params.page_shift = PAGE_SHIFT; + params.page_shift = SHIFT_4K; /* when the first/last SG element are not start/end * * page aligned, the map whould be of N+1 pages */ params.max_pages_per_fmr = ISCSI_ISER_SG_TABLESIZE + 1; @@ -604,7 +604,7 @@ int iser_reg_page_vec(struct iser_conn *ib_conn, mem_reg->lkey = mem->fmr->lkey; mem_reg->rkey = mem->fmr->rkey; - mem_reg->len = page_vec->length * PAGE_SIZE; + mem_reg->len = page_vec->length * SIZE_4K; mem_reg->va = io_addr; mem_reg->mem_h = (void *)mem; -- cgit v1.2.3-70-g09d2 From e981f1d4b8288072ba7cf6b7141cd4aefb404383 Mon Sep 17 00:00:00 2001 From: Erez Zilber Date: Mon, 11 Sep 2006 12:24:00 +0300 Subject: IB/iser: fix some debug prints fix and add some debug prints related to iser handling of memory for rdma. Signed-off-by: Erez Zilber Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/iser/iser_memory.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c index bcef0d31f75..8fea0bce504 100644 --- a/drivers/infiniband/ulp/iser/iser_memory.c +++ b/drivers/infiniband/ulp/iser/iser_memory.c @@ -329,9 +329,9 @@ static void iser_data_buf_dump(struct iser_data_buf *data) struct scatterlist *sg = (struct scatterlist *)data->buf; int i; - for (i = 0; i < data->size; i++) + for (i = 0; i < data->dma_nents; i++) iser_err("sg[%d] dma_addr:0x%lX page:0x%p " - "off:%d sz:%d dma_len:%d\n", + "off:0x%x sz:0x%x dma_len:0x%x\n", i, (unsigned long)sg_dma_address(&sg[i]), sg[i].page, sg[i].offset, sg[i].length,sg_dma_len(&sg[i])); @@ -383,6 +383,7 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask, struct iser_regd_buf *regd_buf; int aligned_len; int err; + int i; regd_buf = &iser_ctask->rdma_regd[cmd_dir]; @@ -400,8 +401,18 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask, iser_page_vec_build(mem, ib_conn->page_vec); err = iser_reg_page_vec(ib_conn, ib_conn->page_vec, ®d_buf->reg); - if (err) + if (err) { + iser_data_buf_dump(mem); + iser_err("mem->dma_nents = %d (dlength = 0x%x)\n", mem->dma_nents, + ntoh24(iser_ctask->desc.iscsi_header.dlength)); + iser_err("page_vec: data_size = 0x%x, length = %d, offset = 0x%x\n", + ib_conn->page_vec->data_size, ib_conn->page_vec->length, + ib_conn->page_vec->offset); + for (i=0 ; ipage_vec->length ; i++) { + iser_err("page_vec[%d] = 0x%lx\n", i, ib_conn->page_vec->pages[i]); + } return err; + } /* take a reference on this regd buf such that it will not be released * * (eg in send dto completion) before we get the scsi response */ -- cgit v1.2.3-70-g09d2 From d81110285f7f6c07a0ce8f99a5ff158a647cd649 Mon Sep 17 00:00:00 2001 From: Erez Zilber Date: Mon, 11 Sep 2006 12:26:33 +0300 Subject: IB/iser: Do not use FMR for a single dma entry sg Fast Memory Registration (fmr) is used to register for rdma an sg whose elements are not linearly sequential after dma mapping. The IB verbs layer provides an "all dma memory MR (memory region)" which can be used for RDMA-ing a dma linearly sequential buffer. Change the code to use the dma mr instead of doing fmr when dma mapping produces a single dma entry sg. Signed-off-by: Erez Zilber Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/iser/iscsi_iser.h | 1 + drivers/infiniband/ulp/iser/iser_memory.c | 48 ++++++++++++++++++++++--------- drivers/infiniband/ulp/iser/iser_verbs.c | 6 ++-- 3 files changed, 39 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index 0ba02abb041..7e1a411db2a 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -175,6 +175,7 @@ struct iser_mem_reg { u64 va; u64 len; void *mem_h; + int is_fmr; }; struct iser_regd_buf { diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c index 8fea0bce504..d0b03f42658 100644 --- a/drivers/infiniband/ulp/iser/iser_memory.c +++ b/drivers/infiniband/ulp/iser/iser_memory.c @@ -56,7 +56,7 @@ int iser_regd_buff_release(struct iser_regd_buf *regd_buf) if ((atomic_read(®d_buf->ref_count) == 0) || atomic_dec_and_test(®d_buf->ref_count)) { /* if we used the dma mr, unreg is just NOP */ - if (regd_buf->reg.rkey != 0) + if (regd_buf->reg.is_fmr) iser_unreg_mem(®d_buf->reg); if (regd_buf->dma_addr) { @@ -91,9 +91,9 @@ void iser_reg_single(struct iser_device *device, BUG_ON(dma_mapping_error(dma_addr)); regd_buf->reg.lkey = device->mr->lkey; - regd_buf->reg.rkey = 0; /* indicate there's no need to unreg */ regd_buf->reg.len = regd_buf->data_size; regd_buf->reg.va = dma_addr; + regd_buf->reg.is_fmr = 0; regd_buf->dma_addr = dma_addr; regd_buf->direction = direction; @@ -379,11 +379,13 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask, enum iser_data_dir cmd_dir) { struct iser_conn *ib_conn = iser_ctask->iser_conn->ib_conn; + struct iser_device *device = ib_conn->device; struct iser_data_buf *mem = &iser_ctask->data[cmd_dir]; struct iser_regd_buf *regd_buf; int aligned_len; int err; int i; + struct scatterlist *sg; regd_buf = &iser_ctask->rdma_regd[cmd_dir]; @@ -399,19 +401,37 @@ int iser_reg_rdma_mem(struct iscsi_iser_cmd_task *iser_ctask, mem = &iser_ctask->data_copy[cmd_dir]; } - iser_page_vec_build(mem, ib_conn->page_vec); - err = iser_reg_page_vec(ib_conn, ib_conn->page_vec, ®d_buf->reg); - if (err) { - iser_data_buf_dump(mem); - iser_err("mem->dma_nents = %d (dlength = 0x%x)\n", mem->dma_nents, - ntoh24(iser_ctask->desc.iscsi_header.dlength)); - iser_err("page_vec: data_size = 0x%x, length = %d, offset = 0x%x\n", - ib_conn->page_vec->data_size, ib_conn->page_vec->length, - ib_conn->page_vec->offset); - for (i=0 ; ipage_vec->length ; i++) { - iser_err("page_vec[%d] = 0x%lx\n", i, ib_conn->page_vec->pages[i]); + /* if there a single dma entry, FMR is not needed */ + if (mem->dma_nents == 1) { + sg = (struct scatterlist *)mem->buf; + + regd_buf->reg.lkey = device->mr->lkey; + regd_buf->reg.rkey = device->mr->rkey; + regd_buf->reg.len = sg_dma_len(&sg[0]); + regd_buf->reg.va = sg_dma_address(&sg[0]); + regd_buf->reg.is_fmr = 0; + + iser_dbg("PHYSICAL Mem.register: lkey: 0x%08X rkey: 0x%08X " + "va: 0x%08lX sz: %ld]\n", + (unsigned int)regd_buf->reg.lkey, + (unsigned int)regd_buf->reg.rkey, + (unsigned long)regd_buf->reg.va, + (unsigned long)regd_buf->reg.len); + } else { /* use FMR for multiple dma entries */ + iser_page_vec_build(mem, ib_conn->page_vec); + err = iser_reg_page_vec(ib_conn, ib_conn->page_vec, ®d_buf->reg); + if (err) { + iser_data_buf_dump(mem); + iser_err("mem->dma_nents = %d (dlength = 0x%x)\n", mem->dma_nents, + ntoh24(iser_ctask->desc.iscsi_header.dlength)); + iser_err("page_vec: data_size = 0x%x, length = %d, offset = 0x%x\n", + ib_conn->page_vec->data_size, ib_conn->page_vec->length, + ib_conn->page_vec->offset); + for (i=0 ; ipage_vec->length ; i++) + iser_err("page_vec[%d] = 0x%llx\n", i, + (unsigned long long) ib_conn->page_vec->pages[i]); + return err; } - return err; } /* take a reference on this regd buf such that it will not be released * diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 9b27a7c26aa..ecdca7fc1e4 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -88,8 +88,9 @@ static int iser_create_device_ib_res(struct iser_device *device) iser_cq_tasklet_fn, (unsigned long)device); - device->mr = ib_get_dma_mr(device->pd, - IB_ACCESS_LOCAL_WRITE); + device->mr = ib_get_dma_mr(device->pd, IB_ACCESS_LOCAL_WRITE | + IB_ACCESS_REMOTE_WRITE | + IB_ACCESS_REMOTE_READ); if (IS_ERR(device->mr)) goto dma_mr_err; @@ -606,6 +607,7 @@ int iser_reg_page_vec(struct iser_conn *ib_conn, mem_reg->rkey = mem->fmr->rkey; mem_reg->len = page_vec->length * SIZE_4K; mem_reg->va = io_addr; + mem_reg->is_fmr = 1; mem_reg->mem_h = (void *)mem; mem_reg->va += page_vec->offset; -- cgit v1.2.3-70-g09d2 From 2439a6e65ff09729c3b4215f134dc5cd4e8a30c0 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 22 Sep 2006 15:22:52 -0700 Subject: IPoIB: Refactor completion handling Split up ipoib_ib_handle_wc() into ipoib_ib_handle_rx_wc() and ipoib_ib_handle_tx_wc() to make the code easier to read. This will also help implement NAPI in the future. Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_ib.c | 188 +++++++++++++++++--------------- 1 file changed, 100 insertions(+), 88 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index 5033666b148..722177ea069 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -169,117 +169,129 @@ static int ipoib_ib_post_receives(struct net_device *dev) return 0; } -static void ipoib_ib_handle_wc(struct net_device *dev, - struct ib_wc *wc) +static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) { struct ipoib_dev_priv *priv = netdev_priv(dev); - unsigned int wr_id = wc->wr_id; + unsigned int wr_id = wc->wr_id & ~IPOIB_OP_RECV; + struct sk_buff *skb; + dma_addr_t addr; - ipoib_dbg_data(priv, "called: id %d, op %d, status: %d\n", + ipoib_dbg_data(priv, "recv completion: id %d, op %d, status: %d\n", wr_id, wc->opcode, wc->status); - if (wr_id & IPOIB_OP_RECV) { - wr_id &= ~IPOIB_OP_RECV; - - if (wr_id < ipoib_recvq_size) { - struct sk_buff *skb = priv->rx_ring[wr_id].skb; - dma_addr_t addr = priv->rx_ring[wr_id].mapping; - - if (unlikely(wc->status != IB_WC_SUCCESS)) { - if (wc->status != IB_WC_WR_FLUSH_ERR) - ipoib_warn(priv, "failed recv event " - "(status=%d, wrid=%d vend_err %x)\n", - wc->status, wr_id, wc->vendor_err); - dma_unmap_single(priv->ca->dma_device, addr, - IPOIB_BUF_SIZE, DMA_FROM_DEVICE); - dev_kfree_skb_any(skb); - priv->rx_ring[wr_id].skb = NULL; - return; - } + if (unlikely(wr_id >= ipoib_recvq_size)) { + ipoib_warn(priv, "recv completion event with wrid %d (> %d)\n", + wr_id, ipoib_recvq_size); + return; + } - /* - * If we can't allocate a new RX buffer, dump - * this packet and reuse the old buffer. - */ - if (unlikely(ipoib_alloc_rx_skb(dev, wr_id))) { - ++priv->stats.rx_dropped; - goto repost; - } + skb = priv->rx_ring[wr_id].skb; + addr = priv->rx_ring[wr_id].mapping; - ipoib_dbg_data(priv, "received %d bytes, SLID 0x%04x\n", - wc->byte_len, wc->slid); + if (unlikely(wc->status != IB_WC_SUCCESS)) { + if (wc->status != IB_WC_WR_FLUSH_ERR) + ipoib_warn(priv, "failed recv event " + "(status=%d, wrid=%d vend_err %x)\n", + wc->status, wr_id, wc->vendor_err); + dma_unmap_single(priv->ca->dma_device, addr, + IPOIB_BUF_SIZE, DMA_FROM_DEVICE); + dev_kfree_skb_any(skb); + priv->rx_ring[wr_id].skb = NULL; + return; + } - dma_unmap_single(priv->ca->dma_device, addr, - IPOIB_BUF_SIZE, DMA_FROM_DEVICE); + /* + * If we can't allocate a new RX buffer, dump + * this packet and reuse the old buffer. + */ + if (unlikely(ipoib_alloc_rx_skb(dev, wr_id))) { + ++priv->stats.rx_dropped; + goto repost; + } - skb_put(skb, wc->byte_len); - skb_pull(skb, IB_GRH_BYTES); + ipoib_dbg_data(priv, "received %d bytes, SLID 0x%04x\n", + wc->byte_len, wc->slid); - if (wc->slid != priv->local_lid || - wc->src_qp != priv->qp->qp_num) { - skb->protocol = ((struct ipoib_header *) skb->data)->proto; - skb->mac.raw = skb->data; - skb_pull(skb, IPOIB_ENCAP_LEN); + dma_unmap_single(priv->ca->dma_device, addr, + IPOIB_BUF_SIZE, DMA_FROM_DEVICE); - dev->last_rx = jiffies; - ++priv->stats.rx_packets; - priv->stats.rx_bytes += skb->len; + skb_put(skb, wc->byte_len); + skb_pull(skb, IB_GRH_BYTES); - skb->dev = dev; - /* XXX get correct PACKET_ type here */ - skb->pkt_type = PACKET_HOST; - netif_rx_ni(skb); - } else { - ipoib_dbg_data(priv, "dropping loopback packet\n"); - dev_kfree_skb_any(skb); - } + if (wc->slid != priv->local_lid || + wc->src_qp != priv->qp->qp_num) { + skb->protocol = ((struct ipoib_header *) skb->data)->proto; + skb->mac.raw = skb->data; + skb_pull(skb, IPOIB_ENCAP_LEN); - repost: - if (unlikely(ipoib_ib_post_receive(dev, wr_id))) - ipoib_warn(priv, "ipoib_ib_post_receive failed " - "for buf %d\n", wr_id); - } else - ipoib_warn(priv, "completion event with wrid %d\n", - wr_id); + dev->last_rx = jiffies; + ++priv->stats.rx_packets; + priv->stats.rx_bytes += skb->len; + skb->dev = dev; + /* XXX get correct PACKET_ type here */ + skb->pkt_type = PACKET_HOST; + netif_rx_ni(skb); } else { - struct ipoib_tx_buf *tx_req; - unsigned long flags; + ipoib_dbg_data(priv, "dropping loopback packet\n"); + dev_kfree_skb_any(skb); + } - if (wr_id >= ipoib_sendq_size) { - ipoib_warn(priv, "completion event with wrid %d (> %d)\n", - wr_id, ipoib_sendq_size); - return; - } +repost: + if (unlikely(ipoib_ib_post_receive(dev, wr_id))) + ipoib_warn(priv, "ipoib_ib_post_receive failed " + "for buf %d\n", wr_id); +} - ipoib_dbg_data(priv, "send complete, wrid %d\n", wr_id); +static void ipoib_ib_handle_tx_wc(struct net_device *dev, struct ib_wc *wc) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + unsigned int wr_id = wc->wr_id; + struct ipoib_tx_buf *tx_req; + unsigned long flags; - tx_req = &priv->tx_ring[wr_id]; + ipoib_dbg_data(priv, "send completion: id %d, op %d, status: %d\n", + wr_id, wc->opcode, wc->status); - dma_unmap_single(priv->ca->dma_device, - pci_unmap_addr(tx_req, mapping), - tx_req->skb->len, - DMA_TO_DEVICE); + if (unlikely(wr_id >= ipoib_sendq_size)) { + ipoib_warn(priv, "send completion event with wrid %d (> %d)\n", + wr_id, ipoib_sendq_size); + return; + } - ++priv->stats.tx_packets; - priv->stats.tx_bytes += tx_req->skb->len; + tx_req = &priv->tx_ring[wr_id]; - dev_kfree_skb_any(tx_req->skb); + dma_unmap_single(priv->ca->dma_device, + pci_unmap_addr(tx_req, mapping), + tx_req->skb->len, + DMA_TO_DEVICE); - spin_lock_irqsave(&priv->tx_lock, flags); - ++priv->tx_tail; - if (netif_queue_stopped(dev) && - test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags) && - priv->tx_head - priv->tx_tail <= ipoib_sendq_size >> 1) - netif_wake_queue(dev); - spin_unlock_irqrestore(&priv->tx_lock, flags); + ++priv->stats.tx_packets; + priv->stats.tx_bytes += tx_req->skb->len; - if (wc->status != IB_WC_SUCCESS && - wc->status != IB_WC_WR_FLUSH_ERR) - ipoib_warn(priv, "failed send event " - "(status=%d, wrid=%d vend_err %x)\n", - wc->status, wr_id, wc->vendor_err); - } + dev_kfree_skb_any(tx_req->skb); + + spin_lock_irqsave(&priv->tx_lock, flags); + ++priv->tx_tail; + if (netif_queue_stopped(dev) && + test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags) && + priv->tx_head - priv->tx_tail <= ipoib_sendq_size >> 1) + netif_wake_queue(dev); + spin_unlock_irqrestore(&priv->tx_lock, flags); + + if (wc->status != IB_WC_SUCCESS && + wc->status != IB_WC_WR_FLUSH_ERR) + ipoib_warn(priv, "failed send event " + "(status=%d, wrid=%d vend_err %x)\n", + wc->status, wr_id, wc->vendor_err); +} + +static void ipoib_ib_handle_wc(struct net_device *dev, struct ib_wc *wc) +{ + if (wc->wr_id & IPOIB_OP_RECV) + ipoib_ib_handle_rx_wc(dev, wc); + else + ipoib_ib_handle_tx_wc(dev, wc); } void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr) -- cgit v1.2.3-70-g09d2 From c1a0b23bf477c2e1068905f4e2b5c3cee139e853 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 21 Aug 2006 16:40:12 -0700 Subject: IB/sa: Require SA registration Require users to register with SA module, to prevent the sa_query module text from going away while an SA query callback is still running. Update all in-tree users for the new interface. Signed-off-by: Michael S. Tsirkin Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- drivers/infiniband/core/cma.c | 7 ++- drivers/infiniband/core/sa_query.c | 60 ++++++++++++++++++++++---- drivers/infiniband/ulp/ipoib/ipoib.h | 2 + drivers/infiniband/ulp/ipoib/ipoib_main.c | 12 ++++-- drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 12 +++--- drivers/infiniband/ulp/srp/ib_srp.c | 9 +++- include/rdma/ib_sa.h | 41 +++++++++++++++--- 7 files changed, 116 insertions(+), 27 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 488fa1d642a..1178bd434d1 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -62,6 +62,7 @@ static struct ib_client cma_client = { .remove = cma_remove_one }; +static struct ib_sa_client sa_client; static LIST_HEAD(dev_list); static LIST_HEAD(listen_any_list); static DEFINE_MUTEX(lock); @@ -1323,7 +1324,7 @@ static int cma_query_ib_route(struct rdma_id_private *id_priv, int timeout_ms, path_rec.pkey = cpu_to_be16(ib_addr_get_pkey(addr)); path_rec.numb_path = 1; - id_priv->query_id = ib_sa_path_rec_get(id_priv->id.device, + id_priv->query_id = ib_sa_path_rec_get(&sa_client, id_priv->id.device, id_priv->id.port_num, &path_rec, IB_SA_PATH_REC_DGID | IB_SA_PATH_REC_SGID | IB_SA_PATH_REC_PKEY | IB_SA_PATH_REC_NUMB_PATH, @@ -2199,12 +2200,15 @@ static int cma_init(void) if (!cma_wq) return -ENOMEM; + ib_sa_register_client(&sa_client); + ret = ib_register_client(&cma_client); if (ret) goto err; return 0; err: + ib_sa_unregister_client(&sa_client); destroy_workqueue(cma_wq); return ret; } @@ -2212,6 +2216,7 @@ err: static void cma_cleanup(void) { ib_unregister_client(&cma_client); + ib_sa_unregister_client(&sa_client); destroy_workqueue(cma_wq); idr_destroy(&sdp_ps); idr_destroy(&tcp_ps); diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c index ca8760a7d88..1706d3c7e95 100644 --- a/drivers/infiniband/core/sa_query.c +++ b/drivers/infiniband/core/sa_query.c @@ -1,6 +1,7 @@ /* * Copyright (c) 2004 Topspin Communications. All rights reserved. * Copyright (c) 2005 Voltaire, Inc.  All rights reserved. + * Copyright (c) 2006 Intel Corporation. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU @@ -75,6 +76,7 @@ struct ib_sa_device { struct ib_sa_query { void (*callback)(struct ib_sa_query *, int, struct ib_sa_mad *); void (*release)(struct ib_sa_query *); + struct ib_sa_client *client; struct ib_sa_port *port; struct ib_mad_send_buf *mad_buf; struct ib_sa_sm_ah *sm_ah; @@ -415,6 +417,31 @@ static void ib_sa_event(struct ib_event_handler *handler, struct ib_event *event } } +void ib_sa_register_client(struct ib_sa_client *client) +{ + atomic_set(&client->users, 1); + init_completion(&client->comp); +} +EXPORT_SYMBOL(ib_sa_register_client); + +static inline void ib_sa_client_get(struct ib_sa_client *client) +{ + atomic_inc(&client->users); +} + +static inline void ib_sa_client_put(struct ib_sa_client *client) +{ + if (atomic_dec_and_test(&client->users)) + complete(&client->comp); +} + +void ib_sa_unregister_client(struct ib_sa_client *client) +{ + ib_sa_client_put(client); + wait_for_completion(&client->comp); +} +EXPORT_SYMBOL(ib_sa_unregister_client); + /** * ib_sa_cancel_query - try to cancel an SA query * @id:ID of query to cancel @@ -557,6 +584,7 @@ static void ib_sa_path_rec_release(struct ib_sa_query *sa_query) /** * ib_sa_path_rec_get - Start a Path get query + * @client:SA client * @device:device to send query on * @port_num: port number to send query on * @rec:Path Record to send in query @@ -579,7 +607,8 @@ static void ib_sa_path_rec_release(struct ib_sa_query *sa_query) * error code. Otherwise it is a query ID that can be used to cancel * the query. */ -int ib_sa_path_rec_get(struct ib_device *device, u8 port_num, +int ib_sa_path_rec_get(struct ib_sa_client *client, + struct ib_device *device, u8 port_num, struct ib_sa_path_rec *rec, ib_sa_comp_mask comp_mask, int timeout_ms, gfp_t gfp_mask, @@ -614,8 +643,10 @@ int ib_sa_path_rec_get(struct ib_device *device, u8 port_num, goto err1; } - query->callback = callback; - query->context = context; + ib_sa_client_get(client); + query->sa_query.client = client; + query->callback = callback; + query->context = context; mad = query->sa_query.mad_buf->mad; init_mad(mad, agent); @@ -639,6 +670,7 @@ int ib_sa_path_rec_get(struct ib_device *device, u8 port_num, err2: *sa_query = NULL; + ib_sa_client_put(query->sa_query.client); ib_free_send_mad(query->sa_query.mad_buf); err1: @@ -671,6 +703,7 @@ static void ib_sa_service_rec_release(struct ib_sa_query *sa_query) /** * ib_sa_service_rec_query - Start Service Record operation + * @client:SA client * @device:device to send request on * @port_num: port number to send request on * @method:SA method - should be get, set, or delete @@ -695,7 +728,8 @@ static void ib_sa_service_rec_release(struct ib_sa_query *sa_query) * error code. Otherwise it is a request ID that can be used to cancel * the query. */ -int ib_sa_service_rec_query(struct ib_device *device, u8 port_num, u8 method, +int ib_sa_service_rec_query(struct ib_sa_client *client, + struct ib_device *device, u8 port_num, u8 method, struct ib_sa_service_rec *rec, ib_sa_comp_mask comp_mask, int timeout_ms, gfp_t gfp_mask, @@ -735,8 +769,10 @@ int ib_sa_service_rec_query(struct ib_device *device, u8 port_num, u8 method, goto err1; } - query->callback = callback; - query->context = context; + ib_sa_client_get(client); + query->sa_query.client = client; + query->callback = callback; + query->context = context; mad = query->sa_query.mad_buf->mad; init_mad(mad, agent); @@ -761,6 +797,7 @@ int ib_sa_service_rec_query(struct ib_device *device, u8 port_num, u8 method, err2: *sa_query = NULL; + ib_sa_client_put(query->sa_query.client); ib_free_send_mad(query->sa_query.mad_buf); err1: @@ -791,7 +828,8 @@ static void ib_sa_mcmember_rec_release(struct ib_sa_query *sa_query) kfree(container_of(sa_query, struct ib_sa_mcmember_query, sa_query)); } -int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num, +int ib_sa_mcmember_rec_query(struct ib_sa_client *client, + struct ib_device *device, u8 port_num, u8 method, struct ib_sa_mcmember_rec *rec, ib_sa_comp_mask comp_mask, @@ -827,8 +865,10 @@ int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num, goto err1; } - query->callback = callback; - query->context = context; + ib_sa_client_get(client); + query->sa_query.client = client; + query->callback = callback; + query->context = context; mad = query->sa_query.mad_buf->mad; init_mad(mad, agent); @@ -853,6 +893,7 @@ int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num, err2: *sa_query = NULL; + ib_sa_client_put(query->sa_query.client); ib_free_send_mad(query->sa_query.mad_buf); err1: @@ -889,6 +930,7 @@ static void send_handler(struct ib_mad_agent *agent, ib_free_send_mad(mad_send_wc->send_buf); kref_put(&query->sm_ah->ref, free_sm_ah); + ib_sa_client_put(query->client); query->release(query); } diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h index 474aa214ab5..0b8a79d53a0 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib.h +++ b/drivers/infiniband/ulp/ipoib/ipoib.h @@ -336,6 +336,8 @@ static inline void ipoib_unregister_debugfs(void) { } extern int ipoib_sendq_size; extern int ipoib_recvq_size; +extern struct ib_sa_client ipoib_sa_client; + #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG extern int ipoib_debug_level; diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index e9a7659eb1d..ae3a4982cdd 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -82,6 +82,8 @@ static const u8 ipv4_bcast_addr[] = { struct workqueue_struct *ipoib_workqueue; +struct ib_sa_client ipoib_sa_client; + static void ipoib_add_one(struct ib_device *device); static void ipoib_remove_one(struct ib_device *device); @@ -463,7 +465,7 @@ static int path_rec_start(struct net_device *dev, init_completion(&path->done); path->query_id = - ib_sa_path_rec_get(priv->ca, priv->port, + ib_sa_path_rec_get(&ipoib_sa_client, priv->ca, priv->port, &path->pathrec, IB_SA_PATH_REC_DGID | IB_SA_PATH_REC_SGID | @@ -1191,13 +1193,16 @@ static int __init ipoib_init_module(void) goto err_fs; } + ib_sa_register_client(&ipoib_sa_client); + ret = ib_register_client(&ipoib_client); if (ret) - goto err_wq; + goto err_sa; return 0; -err_wq: +err_sa: + ib_sa_unregister_client(&ipoib_sa_client); destroy_workqueue(ipoib_workqueue); err_fs: @@ -1209,6 +1214,7 @@ err_fs: static void __exit ipoib_cleanup_module(void) { ib_unregister_client(&ipoib_client); + ib_sa_unregister_client(&ipoib_sa_client); ipoib_unregister_debugfs(); destroy_workqueue(ipoib_workqueue); } diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 60b09f5cb34..fb3e4875a46 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -361,7 +361,7 @@ static int ipoib_mcast_sendonly_join(struct ipoib_mcast *mcast) init_completion(&mcast->done); - ret = ib_sa_mcmember_rec_set(priv->ca, priv->port, &rec, + ret = ib_sa_mcmember_rec_set(&ipoib_sa_client, priv->ca, priv->port, &rec, IB_SA_MCMEMBER_REC_MGID | IB_SA_MCMEMBER_REC_PORT_GID | IB_SA_MCMEMBER_REC_PKEY | @@ -485,9 +485,9 @@ static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast, init_completion(&mcast->done); - ret = ib_sa_mcmember_rec_set(priv->ca, priv->port, &rec, comp_mask, - mcast->backoff * 1000, GFP_ATOMIC, - ipoib_mcast_join_complete, + ret = ib_sa_mcmember_rec_set(&ipoib_sa_client, priv->ca, priv->port, + &rec, comp_mask, mcast->backoff * 1000, + GFP_ATOMIC, ipoib_mcast_join_complete, mcast, &mcast->query); if (ret < 0) { @@ -528,7 +528,7 @@ void ipoib_mcast_join_task(void *dev_ptr) priv->local_rate = attr.active_speed * ib_width_enum_to_int(attr.active_width); } else - ipoib_warn(priv, "ib_query_port failed\n"); + ipoib_warn(priv, "ib_query_port failed\n"); } if (!priv->broadcast) { @@ -681,7 +681,7 @@ static int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast) * Just make one shot at leaving and don't wait for a reply; * if we fail, too bad. */ - ret = ib_sa_mcmember_rec_delete(priv->ca, priv->port, &rec, + ret = ib_sa_mcmember_rec_delete(&ipoib_sa_client, priv->ca, priv->port, &rec, IB_SA_MCMEMBER_REC_MGID | IB_SA_MCMEMBER_REC_PORT_GID | IB_SA_MCMEMBER_REC_PKEY | diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index feb1fcd0f2f..44b9e5be668 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -96,6 +96,8 @@ static struct ib_client srp_client = { .remove = srp_remove_one }; +static struct ib_sa_client srp_sa_client; + static inline struct srp_target_port *host_to_target(struct Scsi_Host *host) { return (struct srp_target_port *) host->hostdata; @@ -267,7 +269,8 @@ static int srp_lookup_path(struct srp_target_port *target) init_completion(&target->done); - target->path_query_id = ib_sa_path_rec_get(target->srp_host->dev->dev, + target->path_query_id = ib_sa_path_rec_get(&srp_sa_client, + target->srp_host->dev->dev, target->srp_host->port, &target->path, IB_SA_PATH_REC_DGID | @@ -1998,9 +2001,12 @@ static int __init srp_init_module(void) return ret; } + ib_sa_register_client(&srp_sa_client); + ret = ib_register_client(&srp_client); if (ret) { printk(KERN_ERR PFX "couldn't register IB client\n"); + ib_sa_unregister_client(&srp_sa_client); class_unregister(&srp_class); return ret; } @@ -2011,6 +2017,7 @@ static int __init srp_init_module(void) static void __exit srp_cleanup_module(void) { ib_unregister_client(&srp_client); + ib_sa_unregister_client(&srp_sa_client); class_unregister(&srp_class); } diff --git a/include/rdma/ib_sa.h b/include/rdma/ib_sa.h index c99e4420fd7..58bb5f716fe 100644 --- a/include/rdma/ib_sa.h +++ b/include/rdma/ib_sa.h @@ -1,6 +1,7 @@ /* * Copyright (c) 2004 Topspin Communications. All rights reserved. * Copyright (c) 2005 Voltaire, Inc. All rights reserved. + * Copyright (c) 2006 Intel Corporation. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU @@ -36,8 +37,11 @@ #ifndef IB_SA_H #define IB_SA_H +#include #include +#include + #include #include @@ -250,11 +254,28 @@ struct ib_sa_service_rec { u64 data64[2]; }; +struct ib_sa_client { + atomic_t users; + struct completion comp; +}; + +/** + * ib_sa_register_client - Register an SA client. + */ +void ib_sa_register_client(struct ib_sa_client *client); + +/** + * ib_sa_unregister_client - Deregister an SA client. + * @client: Client object to deregister. + */ +void ib_sa_unregister_client(struct ib_sa_client *client); + struct ib_sa_query; void ib_sa_cancel_query(int id, struct ib_sa_query *query); -int ib_sa_path_rec_get(struct ib_device *device, u8 port_num, +int ib_sa_path_rec_get(struct ib_sa_client *client, + struct ib_device *device, u8 port_num, struct ib_sa_path_rec *rec, ib_sa_comp_mask comp_mask, int timeout_ms, gfp_t gfp_mask, @@ -264,7 +285,8 @@ int ib_sa_path_rec_get(struct ib_device *device, u8 port_num, void *context, struct ib_sa_query **query); -int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num, +int ib_sa_mcmember_rec_query(struct ib_sa_client *client, + struct ib_device *device, u8 port_num, u8 method, struct ib_sa_mcmember_rec *rec, ib_sa_comp_mask comp_mask, @@ -275,7 +297,8 @@ int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num, void *context, struct ib_sa_query **query); -int ib_sa_service_rec_query(struct ib_device *device, u8 port_num, +int ib_sa_service_rec_query(struct ib_sa_client *client, + struct ib_device *device, u8 port_num, u8 method, struct ib_sa_service_rec *rec, ib_sa_comp_mask comp_mask, @@ -288,6 +311,7 @@ int ib_sa_service_rec_query(struct ib_device *device, u8 port_num, /** * ib_sa_mcmember_rec_set - Start an MCMember set query + * @client:SA client * @device:device to send query on * @port_num: port number to send query on * @rec:MCMember Record to send in query @@ -311,7 +335,8 @@ int ib_sa_service_rec_query(struct ib_device *device, u8 port_num, * cancel the query. */ static inline int -ib_sa_mcmember_rec_set(struct ib_device *device, u8 port_num, +ib_sa_mcmember_rec_set(struct ib_sa_client *client, + struct ib_device *device, u8 port_num, struct ib_sa_mcmember_rec *rec, ib_sa_comp_mask comp_mask, int timeout_ms, gfp_t gfp_mask, @@ -321,7 +346,7 @@ ib_sa_mcmember_rec_set(struct ib_device *device, u8 port_num, void *context, struct ib_sa_query **query) { - return ib_sa_mcmember_rec_query(device, port_num, + return ib_sa_mcmember_rec_query(client, device, port_num, IB_MGMT_METHOD_SET, rec, comp_mask, timeout_ms, gfp_mask, callback, @@ -330,6 +355,7 @@ ib_sa_mcmember_rec_set(struct ib_device *device, u8 port_num, /** * ib_sa_mcmember_rec_delete - Start an MCMember delete query + * @client:SA client * @device:device to send query on * @port_num: port number to send query on * @rec:MCMember Record to send in query @@ -353,7 +379,8 @@ ib_sa_mcmember_rec_set(struct ib_device *device, u8 port_num, * cancel the query. */ static inline int -ib_sa_mcmember_rec_delete(struct ib_device *device, u8 port_num, +ib_sa_mcmember_rec_delete(struct ib_sa_client *client, + struct ib_device *device, u8 port_num, struct ib_sa_mcmember_rec *rec, ib_sa_comp_mask comp_mask, int timeout_ms, gfp_t gfp_mask, @@ -363,7 +390,7 @@ ib_sa_mcmember_rec_delete(struct ib_device *device, u8 port_num, void *context, struct ib_sa_query **query) { - return ib_sa_mcmember_rec_query(device, port_num, + return ib_sa_mcmember_rec_query(client, device, port_num, IB_SA_METHOD_DELETE, rec, comp_mask, timeout_ms, gfp_mask, callback, -- cgit v1.2.3-70-g09d2 From a70d059009f4a207e2a9c794f40fc8c870096d54 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 28 Aug 2006 16:32:50 +0300 Subject: IB/cm: Do not track remote QPN in timewait state Do not track remote QPN in TimeWait state, since QP is not connected. Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/core/cm.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index e130d2e8951..f35fcc4c063 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -685,6 +685,8 @@ static void cm_enter_timewait(struct cm_id_private *cm_id_priv) { int wait_time; + cm_cleanup_timewait(cm_id_priv->timewait_info); + /* * The cm_id could be destroyed by the user before we exit timewait. * To protect against this, we search for the cm_id after exiting -- cgit v1.2.3-70-g09d2 From b3b30f5e8a0c50db3d76b6f7c7cc50245aeb57fd Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Tue, 15 Aug 2006 21:11:18 +0300 Subject: IB/mthca: Recover from catastrophic errors Trigger device remove and then add when a catastrophic error is detected in hardware. This, in turn, will cause a device reset, which we hope will recover from the catastrophic condition. Since this might interefere with debugging the root cause, add a module option to suppress this behaviour. Signed-off-by: Jack Morgenstein Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_catas.c | 62 ++++++++++++++++++++++ drivers/infiniband/hw/mthca/mthca_dev.h | 7 +++ drivers/infiniband/hw/mthca/mthca_main.c | 88 +++++++++++++++++++++++-------- 3 files changed, 136 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/mthca/mthca_catas.c b/drivers/infiniband/hw/mthca/mthca_catas.c index c3bec7490f5..cd044ea2dfa 100644 --- a/drivers/infiniband/hw/mthca/mthca_catas.c +++ b/drivers/infiniband/hw/mthca/mthca_catas.c @@ -34,6 +34,7 @@ #include #include +#include #include "mthca_dev.h" @@ -48,9 +49,41 @@ enum { static DEFINE_SPINLOCK(catas_lock); +static LIST_HEAD(catas_list); +static struct workqueue_struct *catas_wq; +static struct work_struct catas_work; + +static int catas_reset_disable; +module_param_named(catas_reset_disable, catas_reset_disable, int, 0644); +MODULE_PARM_DESC(catas_reset_disable, "disable reset on catastrophic event if nonzero"); + +static void catas_reset(void *work_ptr) +{ + struct mthca_dev *dev, *tmpdev; + LIST_HEAD(tlist); + int ret; + + mutex_lock(&mthca_device_mutex); + + spin_lock_irq(&catas_lock); + list_splice_init(&catas_list, &tlist); + spin_unlock_irq(&catas_lock); + + list_for_each_entry_safe(dev, tmpdev, &tlist, catas_err.list) { + ret = __mthca_restart_one(dev->pdev); + if (ret) + mthca_err(dev, "Reset failed (%d)\n", ret); + else + mthca_dbg(dev, "Reset succeeded\n"); + } + + mutex_unlock(&mthca_device_mutex); +} + static void handle_catas(struct mthca_dev *dev) { struct ib_event event; + unsigned long flags; const char *type; int i; @@ -82,6 +115,14 @@ static void handle_catas(struct mthca_dev *dev) for (i = 0; i < dev->catas_err.size; ++i) mthca_err(dev, " buf[%02x]: %08x\n", i, swab32(readl(dev->catas_err.map + i))); + + if (catas_reset_disable) + return; + + spin_lock_irqsave(&catas_lock, flags); + list_add(&dev->catas_err.list, &catas_list); + queue_work(catas_wq, &catas_work); + spin_unlock_irqrestore(&catas_lock, flags); } static void poll_catas(unsigned long dev_ptr) @@ -135,6 +176,7 @@ void mthca_start_catas_poll(struct mthca_dev *dev) dev->catas_err.timer.data = (unsigned long) dev; dev->catas_err.timer.function = poll_catas; dev->catas_err.timer.expires = jiffies + MTHCA_CATAS_POLL_INTERVAL; + INIT_LIST_HEAD(&dev->catas_err.list); add_timer(&dev->catas_err.timer); } @@ -153,4 +195,24 @@ void mthca_stop_catas_poll(struct mthca_dev *dev) dev->catas_err.addr), dev->catas_err.size * 4); } + + spin_lock_irq(&catas_lock); + list_del(&dev->catas_err.list); + spin_unlock_irq(&catas_lock); +} + +int __init mthca_catas_init(void) +{ + INIT_WORK(&catas_work, catas_reset, NULL); + + catas_wq = create_singlethread_workqueue("mthca_catas"); + if (!catas_wq) + return -ENOMEM; + + return 0; +} + +void mthca_catas_cleanup(void) +{ + destroy_workqueue(catas_wq); } diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h index 33bd0b8bfd1..fe5cecf70fe 100644 --- a/drivers/infiniband/hw/mthca/mthca_dev.h +++ b/drivers/infiniband/hw/mthca/mthca_dev.h @@ -45,6 +45,7 @@ #include #include #include +#include #include @@ -283,8 +284,11 @@ struct mthca_catas_err { unsigned long stop; u32 size; struct timer_list timer; + struct list_head list; }; +extern struct mutex mthca_device_mutex; + struct mthca_dev { struct ib_device ib_dev; struct pci_dev *pdev; @@ -450,6 +454,9 @@ void mthca_unregister_device(struct mthca_dev *dev); void mthca_start_catas_poll(struct mthca_dev *dev); void mthca_stop_catas_poll(struct mthca_dev *dev); +int __mthca_restart_one(struct pci_dev *pdev); +int mthca_catas_init(void); +void mthca_catas_cleanup(void); int mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar); void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar); diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c index 7b82c1907f0..47ea0214836 100644 --- a/drivers/infiniband/hw/mthca/mthca_main.c +++ b/drivers/infiniband/hw/mthca/mthca_main.c @@ -80,6 +80,8 @@ static int tune_pci = 0; module_param(tune_pci, int, 0444); MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero"); +struct mutex mthca_device_mutex; + static const char mthca_version[] __devinitdata = DRV_NAME ": Mellanox InfiniBand HCA driver v" DRV_VERSION " (" DRV_RELDATE ")\n"; @@ -978,28 +980,15 @@ static struct { MTHCA_FLAG_SINAI_OPT } }; -static int __devinit mthca_init_one(struct pci_dev *pdev, - const struct pci_device_id *id) +static int __mthca_init_one(struct pci_dev *pdev, int hca_type) { - static int mthca_version_printed = 0; int ddr_hidden = 0; int err; struct mthca_dev *mdev; - if (!mthca_version_printed) { - printk(KERN_INFO "%s", mthca_version); - ++mthca_version_printed; - } - printk(KERN_INFO PFX "Initializing %s\n", pci_name(pdev)); - if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) { - printk(KERN_ERR PFX "%s has invalid driver data %lx\n", - pci_name(pdev), id->driver_data); - return -ENODEV; - } - err = pci_enable_device(pdev); if (err) { dev_err(&pdev->dev, "Cannot enable PCI device, " @@ -1065,7 +1054,7 @@ static int __devinit mthca_init_one(struct pci_dev *pdev, mdev->pdev = pdev; - mdev->mthca_flags = mthca_hca_table[id->driver_data].flags; + mdev->mthca_flags = mthca_hca_table[hca_type].flags; if (ddr_hidden) mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN; @@ -1099,13 +1088,13 @@ static int __devinit mthca_init_one(struct pci_dev *pdev, if (err) goto err_cmd; - if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) { + if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) { mthca_warn(mdev, "HCA FW version %d.%d.%d is old (%d.%d.%d is current).\n", (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff, (int) (mdev->fw_ver & 0xffff), - (int) (mthca_hca_table[id->driver_data].latest_fw >> 32), - (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff, - (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff)); + (int) (mthca_hca_table[hca_type].latest_fw >> 32), + (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff, + (int) (mthca_hca_table[hca_type].latest_fw & 0xffff)); mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n"); } @@ -1122,6 +1111,7 @@ static int __devinit mthca_init_one(struct pci_dev *pdev, goto err_unregister; pci_set_drvdata(pdev, mdev); + mdev->hca_type = hca_type; return 0; @@ -1166,7 +1156,7 @@ err_disable_pdev: return err; } -static void __devexit mthca_remove_one(struct pci_dev *pdev) +static void __mthca_remove_one(struct pci_dev *pdev) { struct mthca_dev *mdev = pci_get_drvdata(pdev); u8 status; @@ -1211,6 +1201,51 @@ static void __devexit mthca_remove_one(struct pci_dev *pdev) } } +int __mthca_restart_one(struct pci_dev *pdev) +{ + struct mthca_dev *mdev; + + mdev = pci_get_drvdata(pdev); + if (!mdev) + return -ENODEV; + __mthca_remove_one(pdev); + return __mthca_init_one(pdev, mdev->hca_type); +} + +static int __devinit mthca_init_one(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + static int mthca_version_printed = 0; + int ret; + + mutex_lock(&mthca_device_mutex); + + if (!mthca_version_printed) { + printk(KERN_INFO "%s", mthca_version); + ++mthca_version_printed; + } + + if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) { + printk(KERN_ERR PFX "%s has invalid driver data %lx\n", + pci_name(pdev), id->driver_data); + mutex_unlock(&mthca_device_mutex); + return -ENODEV; + } + + ret = __mthca_init_one(pdev, id->driver_data); + + mutex_unlock(&mthca_device_mutex); + + return ret; +} + +static void __devexit mthca_remove_one(struct pci_dev *pdev) +{ + mutex_lock(&mthca_device_mutex); + __mthca_remove_one(pdev); + mutex_unlock(&mthca_device_mutex); +} + static struct pci_device_id mthca_pci_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR), .driver_data = TAVOR }, @@ -1248,13 +1283,24 @@ static int __init mthca_init(void) { int ret; + mutex_init(&mthca_device_mutex); + ret = mthca_catas_init(); + if (ret) + return ret; + ret = pci_register_driver(&mthca_driver); - return ret < 0 ? ret : 0; + if (ret < 0) { + mthca_catas_cleanup(); + return ret; + } + + return 0; } static void __exit mthca_cleanup(void) { pci_unregister_driver(&mthca_driver); + mthca_catas_cleanup(); } module_init(mthca_init); -- cgit v1.2.3-70-g09d2 From d35cc330a2058a32410ef42784b8d3b942f37b8b Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 22 Sep 2006 15:22:55 -0700 Subject: IB/mthca: Simplify calls to mthca_cq_clean() If a QP has separate send and receive CQs, then the send CQ will never have receive completions from that QP in it. So when cleaning the send CQ, there's no need to pass in an SRQ pointer, even if the QP is attached to an SRQ. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mthca/mthca_qp.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c index 9324b6204ac..5e5c58b9920 100644 --- a/drivers/infiniband/hw/mthca/mthca_qp.c +++ b/drivers/infiniband/hw/mthca/mthca_qp.c @@ -845,11 +845,10 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, * entries and reinitialize the QP. */ if (new_state == IB_QPS_RESET && !qp->ibqp.uobject) { - mthca_cq_clean(dev, to_mcq(qp->ibqp.send_cq), qp->qpn, + mthca_cq_clean(dev, to_mcq(qp->ibqp.recv_cq), qp->qpn, qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL); if (qp->ibqp.send_cq != qp->ibqp.recv_cq) - mthca_cq_clean(dev, to_mcq(qp->ibqp.recv_cq), qp->qpn, - qp->ibqp.srq ? to_msrq(qp->ibqp.srq) : NULL); + mthca_cq_clean(dev, to_mcq(qp->ibqp.send_cq), qp->qpn, NULL); mthca_wq_reset(&qp->sq); qp->sq.last = get_send_wqe(qp, qp->sq.max - 1); -- cgit v1.2.3-70-g09d2 From 5755d6dad95808a24a65dd9e61e23c305f9b077c Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 22 Sep 2006 15:22:55 -0700 Subject: IB/iser: INFINIBAND_ISER depends on INET iSER won't build without CONFIG_INET enabled, so make Kconfig reflect that. Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/iser/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/iser/Kconfig b/drivers/infiniband/ulp/iser/Kconfig index fead87d1eff..365a1b5f19e 100644 --- a/drivers/infiniband/ulp/iser/Kconfig +++ b/drivers/infiniband/ulp/iser/Kconfig @@ -1,6 +1,6 @@ config INFINIBAND_ISER tristate "ISCSI RDMA Protocol" - depends on INFINIBAND && SCSI + depends on INFINIBAND && SCSI && INET select SCSI_ISCSI_ATTRS ---help--- Support for the ISCSI RDMA Protocol over InfiniBand. This -- cgit v1.2.3-70-g09d2 From d0df6d6d4539241179a1ef5394787825bf05bbce Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 22 Sep 2006 15:22:56 -0700 Subject: IPoIB: Create MCGs with all attributes required by RFC RFC 4391 ("Transmission of IP over InfiniBand (IPoIB)") says: If the IB multicast group does not already exist, one must be created first with the IPoIB link MTU. The MGID MUST use the same P_Key, Q_Key, SL, MTU, and HopLimit as those used in the broadcast-GID. The rest of attributes SHOULD follow the values used in the broadcast-GID as well. However, the current IPoIB driver is only setting the attributes required by the InfiniBand spec to create a multicast group, so in particular the MTU and HopLimit are not being set. Add these attributes when creating MCGs, and also set the Rate attribute, since IPoIB pays attention to that attribute as well. Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index fb3e4875a46..3faa1820f0e 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -472,15 +472,25 @@ static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast, if (create) { comp_mask |= - IB_SA_MCMEMBER_REC_QKEY | - IB_SA_MCMEMBER_REC_SL | - IB_SA_MCMEMBER_REC_FLOW_LABEL | - IB_SA_MCMEMBER_REC_TRAFFIC_CLASS; + IB_SA_MCMEMBER_REC_QKEY | + IB_SA_MCMEMBER_REC_MTU_SELECTOR | + IB_SA_MCMEMBER_REC_MTU | + IB_SA_MCMEMBER_REC_TRAFFIC_CLASS | + IB_SA_MCMEMBER_REC_RATE_SELECTOR | + IB_SA_MCMEMBER_REC_RATE | + IB_SA_MCMEMBER_REC_SL | + IB_SA_MCMEMBER_REC_FLOW_LABEL | + IB_SA_MCMEMBER_REC_HOP_LIMIT; rec.qkey = priv->broadcast->mcmember.qkey; + rec.mtu_selector = IB_SA_EQ; + rec.mtu = priv->broadcast->mcmember.mtu; + rec.traffic_class = priv->broadcast->mcmember.traffic_class; + rec.rate_selector = IB_SA_EQ; + rec.rate = priv->broadcast->mcmember.rate; rec.sl = priv->broadcast->mcmember.sl; rec.flow_label = priv->broadcast->mcmember.flow_label; - rec.traffic_class = priv->broadcast->mcmember.traffic_class; + rec.hop_limit = priv->broadcast->mcmember.hop_limit; } init_completion(&mcast->done); -- cgit v1.2.3-70-g09d2 From 5ccd025553d73e523212ee0860b7f4a75e886bfa Mon Sep 17 00:00:00 2001 From: Eli Cohen Date: Fri, 22 Sep 2006 15:22:56 -0700 Subject: IPoIB: Rejoin all multicast groups after a port event When ipoib_ib_dev_flush() is called because of a port event, the driver needs to rejoin all multicast groups, since the flush will call ipoib_mcast_dev_flush() (via ipoib_ib_dev_down()). Otherwise no (non-broadcast) multicast groups will be rejoined until the networking core calls ->set_multicast_list again, and so multicast reception will be broken for potentially a long time. Signed-off-by: Eli Cohen Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_ib.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index 722177ea069..240befdf90d 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -631,8 +631,10 @@ void ipoib_ib_dev_flush(void *_dev) * The device could have been brought down between the start and when * we get here, don't bring it back up if it's not configured up */ - if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) + if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) { ipoib_ib_dev_up(dev); + ipoib_mcast_restart_task(dev); + } mutex_lock(&priv->vlan_mutex); -- cgit v1.2.3-70-g09d2 From 507c33504686e733a14ef0b2dc9db0c20fae4653 Mon Sep 17 00:00:00 2001 From: Dotan Barak Date: Thu, 21 Sep 2006 18:26:43 +0300 Subject: IPoIB: Remove unused include of vmalloc.h IPoIB doesn't use anything from , so don't include it. Signed-off-by: Dotan Barak Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_main.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index ae3a4982cdd..867d6274205 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -40,7 +40,6 @@ #include #include -#include #include #include /* For ARPHRD_xxx */ -- cgit v1.2.3-70-g09d2 From a8bfca024326560d86c6323b0504288ca55a75fc Mon Sep 17 00:00:00 2001 From: Eli Cohen Date: Fri, 22 Sep 2006 15:22:58 -0700 Subject: IPoIB: Add some likely/unlikely annotations in hot path Signed-off-by: Eli Cohen Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_ib.c | 2 +- drivers/infiniband/ulp/ipoib/ipoib_main.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index 240befdf90d..f426a69d9a4 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -332,7 +332,7 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_tx_buf *tx_req; dma_addr_t addr; - if (skb->len > dev->mtu + INFINIBAND_ALEN) { + if (unlikely(skb->len > dev->mtu + INFINIBAND_ALEN)) { ipoib_warn(priv, "packet len %d (> %d) too long to send, dropping\n", skb->len, dev->mtu + INFINIBAND_ALEN); ++priv->stats.tx_dropped; diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 867d6274205..1eaf00e9862 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -620,7 +620,7 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) struct ipoib_neigh *neigh; unsigned long flags; - if (!spin_trylock_irqsave(&priv->tx_lock, flags)) + if (unlikely(!spin_trylock_irqsave(&priv->tx_lock, flags))) return NETDEV_TX_LOCKED; /* @@ -633,7 +633,7 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_BUSY; } - if (skb->dst && skb->dst->neighbour) { + if (likely(skb->dst && skb->dst->neighbour)) { if (unlikely(!*to_ipoib_neigh(skb->dst->neighbour))) { ipoib_path_lookup(skb, dev); goto out; -- cgit v1.2.3-70-g09d2 From 9cd330d36b32ed48d49561b165842db20bd153cc Mon Sep 17 00:00:00 2001 From: Krishna Kumar Date: Fri, 22 Sep 2006 15:22:58 -0700 Subject: IB: Fix typo in kerneldoc for ib_set_client_data() Signed-off-by: Krishna Kumar Signed-off-by: Roland Dreier --- drivers/infiniband/core/device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index d978fbe9753..63d2a39fb82 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -385,7 +385,7 @@ void *ib_get_client_data(struct ib_device *device, struct ib_client *client) EXPORT_SYMBOL(ib_get_client_data); /** - * ib_set_client_data - Get IB client context + * ib_set_client_data - Set IB client context * @device:Device to set context for * @client:Client to set context for * @data:Context to set -- cgit v1.2.3-70-g09d2 From ddad65df0048e210c93640b59b3bad12701febb6 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Fri, 22 Sep 2006 19:15:23 -0400 Subject: [CPUFREQ] Fix some more CPU hotplug locking. Lukewarm IQ detected in hotplug locking BUG: warning at kernel/cpu.c:38/lock_cpu_hotplug() [] lock_cpu_hotplug+0x42/0x65 [] cpufreq_update_policy+0x25/0xad [] kprobe_flush_task+0x18/0x40 [] schedule+0x63f/0x68b [] __link_module+0x0/0x1f [] __cond_resched+0x16/0x34 [] cond_resched+0x26/0x31 [] wait_for_completion+0x17/0xb1 [] cpufreq_stat_cpu_callback+0x13/0x20 [cpufreq_stats] [] cpufreq_stats_init+0x74/0x8b [cpufreq_stats] [] sys_init_module+0x91/0x174 [] sysenter_past_esp+0x56/0x79 As there are other places that call cpufreq_update_policy without the hotplug lock, it seems better to keep the hotplug locking at the lower level for the time being until this is revamped. Signed-off-by: Dave Jones --- drivers/cpufreq/cpufreq_stats.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index 25eee539420..c2ecc599dc5 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -350,12 +350,10 @@ __init cpufreq_stats_init(void) } register_hotcpu_notifier(&cpufreq_stat_cpu_notifier); - lock_cpu_hotplug(); for_each_online_cpu(cpu) { cpufreq_stat_cpu_callback(&cpufreq_stat_cpu_notifier, CPU_ONLINE, (void *)(long)cpu); } - unlock_cpu_hotplug(); return 0; } static void -- cgit v1.2.3-70-g09d2 From 634965f5cfda1763f51e7916cfa49265b70e2a8d Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 23 Sep 2006 01:20:31 +0100 Subject: [PATCH] memcpy_fromio() missing in istallion memcpy() from iomem is a bad thing... Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- drivers/char/istallion.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c index 84dfc427813..8c09997cc3d 100644 --- a/drivers/char/istallion.c +++ b/drivers/char/istallion.c @@ -3488,7 +3488,7 @@ static int stli_initecp(stlibrd_t *brdp) */ EBRDENABLE(brdp); sigsp = (cdkecpsig_t __iomem *) EBRDGETMEMPTR(brdp, CDK_SIGADDR); - memcpy(&sig, sigsp, sizeof(cdkecpsig_t)); + memcpy_fromio(&sig, sigsp, sizeof(cdkecpsig_t)); EBRDDISABLE(brdp); if (sig.magic != cpu_to_le32(ECP_MAGIC)) -- cgit v1.2.3-70-g09d2 From a07562e03a3f4a1276931e3fb3cb532622a6c616 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 23 Sep 2006 01:25:18 +0100 Subject: [PATCH] asm/backlight.h is ppc-only Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- drivers/macintosh/adbhid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/macintosh/adbhid.c b/drivers/macintosh/adbhid.c index c69d23bb255..efd51e01c06 100644 --- a/drivers/macintosh/adbhid.c +++ b/drivers/macintosh/adbhid.c @@ -45,8 +45,8 @@ #include #include -#include #ifdef CONFIG_PPC_PMAC +#include #include #endif -- cgit v1.2.3-70-g09d2 From 956295d50dc5462722f029de64d44a7ecba54e69 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 23 Sep 2006 01:27:30 +0100 Subject: [PATCH] fix the survivors of fbcon_vbl_handler() renaming In |Author: James Simmons |Date: Thu Mar 13 22:37:08 2003 -0800 | | [FBCON] Cursor handling clean up. I nuked several static variables. we have -static void fbcon_vbl_handler(int irq, void *dummy, struct pt_regs *fp) +static void fb_vbl_handler(int irq, void *dev_id, struct pt_regs *fp) and 3 years later a couple of instances missed back then still remains there. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- drivers/video/console/fbcon.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index 390439b3d89..1b4f75d1f8a 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -3197,11 +3197,11 @@ static void fbcon_exit(void) return; #ifdef CONFIG_ATARI - free_irq(IRQ_AUTO_4, fbcon_vbl_handler); + free_irq(IRQ_AUTO_4, fb_vbl_handler); #endif #ifdef CONFIG_MAC if (MACH_IS_MAC && vbl_detected) - free_irq(IRQ_MAC_VBL, fbcon_vbl_handler); + free_irq(IRQ_MAC_VBL, fb_vbl_handler); #endif kfree((void *)softback_buf); -- cgit v1.2.3-70-g09d2 From c03efdb202a4882f426ce49766859af4058c9b8a Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 23 Sep 2006 01:29:34 +0100 Subject: [PATCH] fallout from hcd-core patch missing le16_to_cpu() Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- drivers/usb/input/hid-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c index a2c56b2de58..3305fb6079e 100644 --- a/drivers/usb/input/hid-core.c +++ b/drivers/usb/input/hid-core.c @@ -1818,7 +1818,7 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf) int n, len, insize = 0; /* Ignore all Wacom devices */ - if (dev->descriptor.idVendor == USB_VENDOR_ID_WACOM) + if (le16_to_cpu(dev->descriptor.idVendor) == USB_VENDOR_ID_WACOM) return NULL; for (n = 0; hid_blacklist[n].idVendor; n++) -- cgit v1.2.3-70-g09d2