diff options
Diffstat (limited to 'drivers/net/spider_net.h')
| -rw-r--r-- | drivers/net/spider_net.h | 469 |
1 files changed, 469 insertions, 0 deletions
diff --git a/drivers/net/spider_net.h b/drivers/net/spider_net.h new file mode 100644 index 00000000000..22b2f234735 --- /dev/null +++ b/drivers/net/spider_net.h @@ -0,0 +1,469 @@ +/* + * Network device driver for Cell Processor-Based Blade + * + * (C) Copyright IBM Corp. 2005 + * + * Authors : Utz Bacher <utz.bacher@de.ibm.com> + * Jens Osterkamp <Jens.Osterkamp@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 _SPIDER_NET_H +#define _SPIDER_NET_H + +#include "sungem_phy.h" + +extern int spider_net_stop(struct net_device *netdev); +extern int spider_net_open(struct net_device *netdev); + +extern struct ethtool_ops spider_net_ethtool_ops; + +extern char spider_net_driver_name[]; + +#define SPIDER_NET_MAX_MTU 2308 +#define SPIDER_NET_MIN_MTU 64 + +#define SPIDER_NET_RXBUF_ALIGN 128 + +#define SPIDER_NET_RX_DESCRIPTORS_DEFAULT 64 +#define SPIDER_NET_RX_DESCRIPTORS_MIN 16 +#define SPIDER_NET_RX_DESCRIPTORS_MAX 256 + +#define SPIDER_NET_TX_DESCRIPTORS_DEFAULT 64 +#define SPIDER_NET_TX_DESCRIPTORS_MIN 16 +#define SPIDER_NET_TX_DESCRIPTORS_MAX 256 + +#define SPIDER_NET_RX_CSUM_DEFAULT 1 + +#define SPIDER_NET_WATCHDOG_TIMEOUT 5*HZ +#define SPIDER_NET_NAPI_WEIGHT 64 + +#define SPIDER_NET_FIRMWARE_LEN 1024 +#define SPIDER_NET_FIRMWARE_NAME "spider_fw.bin" + +/** spider_net SMMIO registers */ +#define SPIDER_NET_GHIINT0STS 0x00000000 +#define SPIDER_NET_GHIINT1STS 0x00000004 +#define SPIDER_NET_GHIINT2STS 0x00000008 +#define SPIDER_NET_GHIINT0MSK 0x00000010 +#define SPIDER_NET_GHIINT1MSK 0x00000014 +#define SPIDER_NET_GHIINT2MSK 0x00000018 + +#define SPIDER_NET_GRESUMINTNUM 0x00000020 +#define SPIDER_NET_GREINTNUM 0x00000024 + +#define SPIDER_NET_GFFRMNUM 0x00000028 +#define SPIDER_NET_GFAFRMNUM 0x0000002c +#define SPIDER_NET_GFBFRMNUM 0x00000030 +#define SPIDER_NET_GFCFRMNUM 0x00000034 +#define SPIDER_NET_GFDFRMNUM 0x00000038 + +/* clear them (don't use it) */ +#define SPIDER_NET_GFREECNNUM 0x0000003c +#define SPIDER_NET_GONETIMENUM 0x00000040 + +#define SPIDER_NET_GTOUTFRMNUM 0x00000044 + +#define SPIDER_NET_GTXMDSET 0x00000050 +#define SPIDER_NET_GPCCTRL 0x00000054 +#define SPIDER_NET_GRXMDSET 0x00000058 +#define SPIDER_NET_GIPSECINIT 0x0000005c +#define SPIDER_NET_GFTRESTRT 0x00000060 +#define SPIDER_NET_GRXDMAEN 0x00000064 +#define SPIDER_NET_GMRWOLCTRL 0x00000068 +#define SPIDER_NET_GPCWOPCMD 0x0000006c +#define SPIDER_NET_GPCROPCMD 0x00000070 +#define SPIDER_NET_GTTFRMCNT 0x00000078 +#define SPIDER_NET_GTESTMD 0x0000007c + +#define SPIDER_NET_GSINIT 0x00000080 +#define SPIDER_NET_GSnPRGADR 0x00000084 +#define SPIDER_NET_GSnPRGDAT 0x00000088 + +#define SPIDER_NET_GMACOPEMD 0x00000100 +#define SPIDER_NET_GMACLENLMT 0x00000108 +#define SPIDER_NET_GMACINTEN 0x00000118 +#define SPIDER_NET_GMACPHYCTRL 0x00000120 + +#define SPIDER_NET_GMACAPAUSE 0x00000154 +#define SPIDER_NET_GMACTXPAUSE 0x00000164 + +#define SPIDER_NET_GMACMODE 0x000001b0 +#define SPIDER_NET_GMACBSTLMT 0x000001b4 + +#define SPIDER_NET_GMACUNIMACU 0x000001c0 +#define SPIDER_NET_GMACUNIMACL 0x000001c8 + +#define SPIDER_NET_GMRMHFILnR 0x00000400 +#define SPIDER_NET_MULTICAST_HASHES 256 + +#define SPIDER_NET_GMRUAFILnR 0x00000500 +#define SPIDER_NET_GMRUA0FIL15R 0x00000578 + +/* RX DMA controller registers, all 0x00000a.. are for DMA controller A, + * 0x00000b.. for DMA controller B, etc. */ +#define SPIDER_NET_GDADCHA 0x00000a00 +#define SPIDER_NET_GDADMACCNTR 0x00000a04 +#define SPIDER_NET_GDACTDPA 0x00000a08 +#define SPIDER_NET_GDACTDCNT 0x00000a0c +#define SPIDER_NET_GDACDBADDR 0x00000a20 +#define SPIDER_NET_GDACDBSIZE 0x00000a24 +#define SPIDER_NET_GDACNEXTDA 0x00000a28 +#define SPIDER_NET_GDACCOMST 0x00000a2c +#define SPIDER_NET_GDAWBCOMST 0x00000a30 +#define SPIDER_NET_GDAWBRSIZE 0x00000a34 +#define SPIDER_NET_GDAWBVSIZE 0x00000a38 +#define SPIDER_NET_GDAWBTRST 0x00000a3c +#define SPIDER_NET_GDAWBTRERR 0x00000a40 + +/* TX DMA controller registers */ +#define SPIDER_NET_GDTDCHA 0x00000e00 +#define SPIDER_NET_GDTDMACCNTR 0x00000e04 +#define SPIDER_NET_GDTCDPA 0x00000e08 +#define SPIDER_NET_GDTDMASEL 0x00000e14 + +#define SPIDER_NET_ECMODE 0x00000f00 +/* clock and reset control register */ +#define SPIDER_NET_CKRCTRL 0x00000ff0 + +/** SCONFIG registers */ +#define SPIDER_NET_SCONFIG_IOACTE 0x00002810 + +/** hardcoded register values */ +#define SPIDER_NET_INT0_MASK_VALUE 0x3f7fe3ff +#define SPIDER_NET_INT1_MASK_VALUE 0xffffffff +/* no MAC aborts -> auto retransmission */ +#define SPIDER_NET_INT2_MASK_VALUE 0xfffffff1 + +/* clear counter when interrupt sources are cleared +#define SPIDER_NET_FRAMENUM_VALUE 0x0001f001 */ +/* we rely on flagged descriptor interrupts */ +#define SPIDER_NET_FRAMENUM_VALUE 0x00000000 +/* set this first, then the FRAMENUM_VALUE */ +#define SPIDER_NET_GFXFRAMES_VALUE 0x00000000 + +#define SPIDER_NET_STOP_SEQ_VALUE 0x00000000 +#define SPIDER_NET_RUN_SEQ_VALUE 0x0000007e + +#define SPIDER_NET_PHY_CTRL_VALUE 0x00040040 +/* #define SPIDER_NET_PHY_CTRL_VALUE 0x01070080*/ +#define SPIDER_NET_RXMODE_VALUE 0x00000011 +/* auto retransmission in case of MAC aborts */ +#define SPIDER_NET_TXMODE_VALUE 0x00010000 +#define SPIDER_NET_RESTART_VALUE 0x00000000 +#define SPIDER_NET_WOL_VALUE 0x00001111 +#if 0 +#define SPIDER_NET_WOL_VALUE 0x00000000 +#endif +#define SPIDER_NET_IPSECINIT_VALUE 0x00f000f8 + +/* pause frames: automatic, no upper retransmission count */ +/* outside loopback mode: ETOMOD signal dont matter, not connected */ +#define SPIDER_NET_OPMODE_VALUE 0x00000063 +/*#define SPIDER_NET_OPMODE_VALUE 0x001b0062*/ +#define SPIDER_NET_LENLMT_VALUE 0x00000908 + +#define SPIDER_NET_MACAPAUSE_VALUE 0x00000800 /* about 1 ms */ +#define SPIDER_NET_TXPAUSE_VALUE 0x00000000 + +#define SPIDER_NET_MACMODE_VALUE 0x00000001 +#define SPIDER_NET_BURSTLMT_VALUE 0x00000200 /* about 16 us */ + +/* 1(0) enable r/tx dma + * 0000000 fixed to 0 + * + * 000000 fixed to 0 + * 0(1) en/disable descr writeback on force end + * 0(1) force end + * + * 000000 fixed to 0 + * 00 burst alignment: 128 bytes + * + * 00000 fixed to 0 + * 0 descr writeback size 32 bytes + * 0(1) descr chain end interrupt enable + * 0(1) descr status writeback enable */ + +/* to set RX_DMA_EN */ +#define SPIDER_NET_DMA_RX_VALUE 0x80000000 +#define SPIDER_NET_DMA_RX_FEND_VALUE 0x00030003 +/* to set TX_DMA_EN */ +#define SPIDER_NET_DMA_TX_VALUE 0x80000000 +#define SPIDER_NET_DMA_TX_FEND_VALUE 0x00030003 + +/* SPIDER_NET_UA_DESCR_VALUE is OR'ed with the unicast address */ +#define SPIDER_NET_UA_DESCR_VALUE 0x00080000 +#define SPIDER_NET_PROMISC_VALUE 0x00080000 +#define SPIDER_NET_NONPROMISC_VALUE 0x00000000 + +#define SPIDER_NET_DMASEL_VALUE 0x00000001 + +#define SPIDER_NET_ECMODE_VALUE 0x00000000 + +#define SPIDER_NET_CKRCTRL_RUN_VALUE 0x1fff010f +#define SPIDER_NET_CKRCTRL_STOP_VALUE 0x0000010f + +#define SPIDER_NET_SBIMSTATE_VALUE 0x00000000 +#define SPIDER_NET_SBTMSTATE_VALUE 0x00000000 + +/* SPIDER_NET_GHIINT0STS bits, in reverse order so that they can be used + * with 1 << SPIDER_NET_... */ +enum spider_net_int0_status { + SPIDER_NET_GPHYINT = 0, + SPIDER_NET_GMAC2INT, + SPIDER_NET_GMAC1INT, + SPIDER_NET_GIPSINT, + SPIDER_NET_GFIFOINT, + SPIDER_NET_GDMACINT, + SPIDER_NET_GSYSINT, + SPIDER_NET_GPWOPCMPINT, + SPIDER_NET_GPROPCMPINT, + SPIDER_NET_GPWFFINT, + SPIDER_NET_GRMDADRINT, + SPIDER_NET_GRMARPINT, + SPIDER_NET_GRMMPINT, + SPIDER_NET_GDTDEN0INT, + SPIDER_NET_GDDDEN0INT, + SPIDER_NET_GDCDEN0INT, + SPIDER_NET_GDBDEN0INT, + SPIDER_NET_GDADEN0INT, + SPIDER_NET_GDTFDCINT, + SPIDER_NET_GDDFDCINT, + SPIDER_NET_GDCFDCINT, + SPIDER_NET_GDBFDCINT, + SPIDER_NET_GDAFDCINT, + SPIDER_NET_GTTEDINT, + SPIDER_NET_GDTDCEINT, + SPIDER_NET_GRFDNMINT, + SPIDER_NET_GRFCNMINT, + SPIDER_NET_GRFBNMINT, + SPIDER_NET_GRFANMINT, + SPIDER_NET_GRFNMINT, + SPIDER_NET_G1TMCNTINT, + SPIDER_NET_GFREECNTINT +}; +/* GHIINT1STS bits */ +enum spider_net_int1_status { + SPIDER_NET_GTMFLLINT = 0, + SPIDER_NET_GRMFLLINT, + SPIDER_NET_GTMSHTINT, + SPIDER_NET_GDTINVDINT, + SPIDER_NET_GRFDFLLINT, + SPIDER_NET_GDDDCEINT, + SPIDER_NET_GDDINVDINT, + SPIDER_NET_GRFCFLLINT, + SPIDER_NET_GDCDCEINT, + SPIDER_NET_GDCINVDINT, + SPIDER_NET_GRFBFLLINT, + SPIDER_NET_GDBDCEINT, + SPIDER_NET_GDBINVDINT, + SPIDER_NET_GRFAFLLINT, + SPIDER_NET_GDADCEINT, + SPIDER_NET_GDAINVDINT, + SPIDER_NET_GDTRSERINT, + SPIDER_NET_GDDRSERINT, + SPIDER_NET_GDCRSERINT, + SPIDER_NET_GDBRSERINT, + SPIDER_NET_GDARSERINT, + SPIDER_NET_GDSERINT, + SPIDER_NET_GDTPTERINT, + SPIDER_NET_GDDPTERINT, + SPIDER_NET_GDCPTERINT, + SPIDER_NET_GDBPTERINT, + SPIDER_NET_GDAPTERINT +}; +/* GHIINT2STS bits */ +enum spider_net_int2_status { + SPIDER_NET_GPROPERINT = 0, + SPIDER_NET_GMCTCRSNGINT, + SPIDER_NET_GMCTLCOLINT, + SPIDER_NET_GMCTTMOTINT, + SPIDER_NET_GMCRCAERINT, + SPIDER_NET_GMCRCALERINT, + SPIDER_NET_GMCRALNERINT, + SPIDER_NET_GMCROVRINT, + SPIDER_NET_GMCRRNTINT, + SPIDER_NET_GMCRRXERINT, + SPIDER_NET_GTITCSERINT, + SPIDER_NET_GTIFMTERINT, + SPIDER_NET_GTIPKTRVKINT, + SPIDER_NET_GTISPINGINT, + SPIDER_NET_GTISADNGINT, + SPIDER_NET_GTISPDNGINT, + SPIDER_NET_GRIFMTERINT, + SPIDER_NET_GRIPKTRVKINT, + SPIDER_NET_GRISPINGINT, + SPIDER_NET_GRISADNGINT, + SPIDER_NET_GRISPDNGINT +}; + +#define SPIDER_NET_TXINT ( (1 << SPIDER_NET_GTTEDINT) | \ + (1 << SPIDER_NET_GDTDCEINT) | \ + (1 << SPIDER_NET_GDTFDCINT) ) + +/* we rely on flagged descriptor interrupts*/ +#define SPIDER_NET_RXINT ( (1 << SPIDER_NET_GDAFDCINT) | \ + (1 << SPIDER_NET_GRMFLLINT) ) + +#define SPIDER_NET_GPREXEC 0x80000000 +#define SPIDER_NET_GPRDAT_MASK 0x0000ffff + +/* descriptor bits + * + * 1010 descriptor ready + * 0 descr in middle of chain + * 000 fixed to 0 + * + * 0 no interrupt on completion + * 000 fixed to 0 + * 1 no ipsec processing + * 1 last descriptor for this frame + * 00 no checksum + * 10 tcp checksum + * 11 udp checksum + * + * 00 fixed to 0 + * 0 fixed to 0 + * 0 no interrupt on response errors + * 0 no interrupt on invalid descr + * 0 no interrupt on dma process termination + * 0 no interrupt on descr chain end + * 0 no interrupt on descr complete + * + * 000 fixed to 0 + * 0 response error interrupt status + * 0 invalid descr status + * 0 dma termination status + * 0 descr chain end status + * 0 descr complete status */ +#define SPIDER_NET_DMAC_CMDSTAT_NOCS 0xa00c0000 +#define SPIDER_NET_DMAC_CMDSTAT_TCPCS 0xa00e0000 +#define SPIDER_NET_DMAC_CMDSTAT_UDPCS 0xa00f0000 +#define SPIDER_NET_DESCR_IND_PROC_SHIFT 28 +#define SPIDER_NET_DESCR_IND_PROC_MASKO 0x0fffffff + +/* descr ready, descr is in middle of chain, get interrupt on completion */ +#define SPIDER_NET_DMAC_RX_CARDOWNED 0xa0800000 + +/* multicast is no problem */ +#define SPIDER_NET_DATA_ERROR_MASK 0xffffbfff + +enum spider_net_descr_status { + SPIDER_NET_DESCR_COMPLETE = 0x00, /* used in rx and tx */ + SPIDER_NET_DESCR_RESPONSE_ERROR = 0x01, /* used in rx and tx */ + SPIDER_NET_DESCR_PROTECTION_ERROR = 0x02, /* used in rx and tx */ + SPIDER_NET_DESCR_FRAME_END = 0x04, /* used in rx */ + SPIDER_NET_DESCR_FORCE_END = 0x05, /* used in rx and tx */ + SPIDER_NET_DESCR_CARDOWNED = 0x0a, /* used in rx and tx */ + SPIDER_NET_DESCR_NOT_IN_USE /* any other value */ +}; + +struct spider_net_descr { + /* as defined by the hardware */ + dma_addr_t buf_addr; + u32 buf_size; + dma_addr_t next_descr_addr; + u32 dmac_cmd_status; + u32 result_size; + u32 valid_size; /* all zeroes for tx */ + u32 data_status; + u32 data_error; /* all zeroes for tx */ + + /* used in the driver */ + struct sk_buff *skb; + dma_addr_t bus_addr; + struct spider_net_descr *next; + struct spider_net_descr *prev; +} __attribute__((aligned(32))); + +struct spider_net_descr_chain { + /* we walk from tail to head */ + struct spider_net_descr *head; + struct spider_net_descr *tail; +}; + +/* descriptor data_status bits */ +#define SPIDER_NET_RXIPCHK 29 +#define SPIDER_NET_TCPUDPIPCHK 28 +#define SPIDER_NET_DATA_STATUS_CHK_MASK (1 << SPIDER_NET_RXIPCHK | \ + 1 << SPIDER_NET_TCPUDPIPCHK) + +#define SPIDER_NET_VLAN_PACKET 21 + +/* descriptor data_error bits */ +#define SPIDER_NET_RXIPCHKERR 27 +#define SPIDER_NET_RXTCPCHKERR 26 +#define SPIDER_NET_DATA_ERROR_CHK_MASK (1 << SPIDER_NET_RXIPCHKERR | \ + 1 << SPIDER_NET_RXTCPCHKERR) + +/* the cases we don't pass the packet to the stack */ +#define SPIDER_NET_DESTROY_RX_FLAGS 0x70138000 + +#define SPIDER_NET_DESCR_SIZE 32 + +/* this will be bigger some time */ +struct spider_net_options { + int rx_csum; /* for rx: if 0 ip_summed=NONE, + if 1 and hw has verified, ip_summed=UNNECESSARY */ +}; + +#define SPIDER_NET_DEFAULT_MSG ( NETIF_MSG_DRV | \ + NETIF_MSG_PROBE | \ + NETIF_MSG_LINK | \ + NETIF_MSG_TIMER | \ + NETIF_MSG_IFDOWN | \ + NETIF_MSG_IFUP | \ + NETIF_MSG_RX_ERR | \ + NETIF_MSG_TX_ERR | \ + NETIF_MSG_TX_QUEUED | \ + NETIF_MSG_INTR | \ + NETIF_MSG_TX_DONE | \ + NETIF_MSG_RX_STATUS | \ + NETIF_MSG_PKTDATA | \ + NETIF_MSG_HW | \ + NETIF_MSG_WOL ) + +struct spider_net_card { + struct net_device *netdev; + struct pci_dev *pdev; + struct mii_phy phy; + + void __iomem *regs; + + struct spider_net_descr_chain tx_chain; + struct spider_net_descr_chain rx_chain; + spinlock_t chain_lock; + + struct net_device_stats netdev_stats; + + struct spider_net_options options; + + spinlock_t intmask_lock; + + struct work_struct tx_timeout_task; + atomic_t tx_timeout_task_counter; + wait_queue_head_t waitq; + + /* for ethtool */ + int msg_enable; + + struct spider_net_descr descr[0]; +}; + +#define pr_err(fmt,arg...) \ + printk(KERN_ERR fmt ,##arg) + +#endif |