diff options
Diffstat (limited to 'drivers/net/eepro100.c')
| -rw-r--r-- | drivers/net/eepro100.c | 2401 |
1 files changed, 0 insertions, 2401 deletions
diff --git a/drivers/net/eepro100.c b/drivers/net/eepro100.c deleted file mode 100644 index e3e26c595fa..00000000000 --- a/drivers/net/eepro100.c +++ /dev/null @@ -1,2401 +0,0 @@ -/* drivers/net/eepro100.c: An Intel i82557-559 Ethernet driver for Linux. */ -/* - Written 1996-1999 by Donald Becker. - - The driver also contains updates by different kernel developers - (see incomplete list below). - Current maintainer is Andrey V. Savochkin <saw@saw.sw.com.sg>. - Please use this email address and linux-kernel mailing list for bug reports. - - This software may be used and distributed according to the terms - of the GNU General Public License, incorporated herein by reference. - - This driver is for the Intel EtherExpress Pro100 (Speedo3) design. - It should work with all i82557/558/559 boards. - - Version history: - 1998 Apr - 2000 Feb Andrey V. Savochkin <saw@saw.sw.com.sg> - Serious fixes for multicast filter list setting, TX timeout routine; - RX ring refilling logic; other stuff - 2000 Feb Jeff Garzik <jgarzik@pobox.com> - Convert to new PCI driver interface - 2000 Mar 24 Dragan Stancevic <visitor@valinux.com> - Disabled FC and ER, to avoid lockups when when we get FCP interrupts. - 2000 Jul 17 Goutham Rao <goutham.rao@intel.com> - PCI DMA API fixes, adding pci_dma_sync_single calls where neccesary - 2000 Aug 31 David Mosberger <davidm@hpl.hp.com> - rx_align support: enables rx DMA without causing unaligned accesses. -*/ - -static const char * const version = -"eepro100.c:v1.09j-t 9/29/99 Donald Becker\n" -"eepro100.c: $Revision: 1.36 $ 2000/11/17 Modified by Andrey V. Savochkin <saw@saw.sw.com.sg> and others\n"; - -/* A few user-configurable values that apply to all boards. - First set is undocumented and spelled per Intel recommendations. */ - -static int congenb /* = 0 */; /* Enable congestion control in the DP83840. */ -static int txfifo = 8; /* Tx FIFO threshold in 4 byte units, 0-15 */ -static int rxfifo = 8; /* Rx FIFO threshold, default 32 bytes. */ -/* Tx/Rx DMA burst length, 0-127, 0 == no preemption, tx==128 -> disabled. */ -static int txdmacount = 128; -static int rxdmacount /* = 0 */; - -#if defined(__ia64__) || defined(__alpha__) || defined(__sparc__) || defined(__mips__) || \ - defined(__arm__) - /* align rx buffers to 2 bytes so that IP header is aligned */ -# define rx_align(skb) skb_reserve((skb), 2) -# define RxFD_ALIGNMENT __attribute__ ((aligned (2), packed)) -#else -# define rx_align(skb) -# define RxFD_ALIGNMENT -#endif - -/* Set the copy breakpoint for the copy-only-tiny-buffer Rx method. - Lower values use more memory, but are faster. */ -static int rx_copybreak = 200; - -/* Maximum events (Rx packets, etc.) to handle at each interrupt. */ -static int max_interrupt_work = 20; - -/* Maximum number of multicast addresses to filter (vs. rx-all-multicast) */ -static int multicast_filter_limit = 64; - -/* 'options' is used to pass a transceiver override or full-duplex flag - e.g. "options=16" for FD, "options=32" for 100mbps-only. */ -static int full_duplex[] = {-1, -1, -1, -1, -1, -1, -1, -1}; -static int options[] = {-1, -1, -1, -1, -1, -1, -1, -1}; - -/* A few values that may be tweaked. */ -/* The ring sizes should be a power of two for efficiency. */ -#define TX_RING_SIZE 64 -#define RX_RING_SIZE 64 -/* How much slots multicast filter setup may take. - Do not descrease without changing set_rx_mode() implementaion. */ -#define TX_MULTICAST_SIZE 2 -#define TX_MULTICAST_RESERV (TX_MULTICAST_SIZE*2) -/* Actual number of TX packets queued, must be - <= TX_RING_SIZE-TX_MULTICAST_RESERV. */ -#define TX_QUEUE_LIMIT (TX_RING_SIZE-TX_MULTICAST_RESERV) -/* Hysteresis marking queue as no longer full. */ -#define TX_QUEUE_UNFULL (TX_QUEUE_LIMIT-4) - -/* Operational parameters that usually are not changed. */ - -/* Time in jiffies before concluding the transmitter is hung. */ -#define TX_TIMEOUT (2*HZ) -/* Size of an pre-allocated Rx buffer: <Ethernet MTU> + slack.*/ -#define PKT_BUF_SZ 1536 - -#include <linux/module.h> - -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/timer.h> -#include <linux/pci.h> -#include <linux/spinlock.h> -#include <linux/init.h> -#include <linux/mii.h> -#include <linux/delay.h> -#include <linux/bitops.h> - -#include <asm/io.h> -#include <asm/uaccess.h> -#include <asm/irq.h> - -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/rtnetlink.h> -#include <linux/skbuff.h> -#include <linux/ethtool.h> - -static int use_io; -static int debug = -1; -#define DEBUG_DEFAULT (NETIF_MSG_DRV | \ - NETIF_MSG_HW | \ - NETIF_MSG_RX_ERR | \ - NETIF_MSG_TX_ERR) -#define DEBUG ((debug >= 0) ? (1<<debug)-1 : DEBUG_DEFAULT) - - -MODULE_AUTHOR("Maintainer: Andrey V. Savochkin <saw@saw.sw.com.sg>"); -MODULE_DESCRIPTION("Intel i82557/i82558/i82559 PCI EtherExpressPro driver"); -MODULE_LICENSE("GPL"); -module_param(use_io, int, 0); -module_param(debug, int, 0); -module_param_array(options, int, NULL, 0); -module_param_array(full_duplex, int, NULL, 0); -module_param(congenb, int, 0); -module_param(txfifo, int, 0); -module_param(rxfifo, int, 0); -module_param(txdmacount, int, 0); -module_param(rxdmacount, int, 0); -module_param(rx_copybreak, int, 0); -module_param(max_interrupt_work, int, 0); -module_param(multicast_filter_limit, int, 0); -MODULE_PARM_DESC(debug, "debug level (0-6)"); -MODULE_PARM_DESC(options, "Bits 0-3: transceiver type, bit 4: full duplex, bit 5: 100Mbps"); -MODULE_PARM_DESC(full_duplex, "full duplex setting(s) (1)"); -MODULE_PARM_DESC(congenb, "Enable congestion control (1)"); -MODULE_PARM_DESC(txfifo, "Tx FIFO threshold in 4 byte units, (0-15)"); -MODULE_PARM_DESC(rxfifo, "Rx FIFO threshold in 4 byte units, (0-15)"); -MODULE_PARM_DESC(txdmacount, "Tx DMA burst length; 128 - disable (0-128)"); -MODULE_PARM_DESC(rxdmacount, "Rx DMA burst length; 128 - disable (0-128)"); -MODULE_PARM_DESC(rx_copybreak, "copy breakpoint for copy-only-tiny-frames"); -MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt"); -MODULE_PARM_DESC(multicast_filter_limit, "maximum number of filtered multicast addresses"); - -#define RUN_AT(x) (jiffies + (x)) - -#define netdevice_start(dev) -#define netdevice_stop(dev) -#define netif_set_tx_timeout(dev, tf, tm) \ - do { \ - (dev)->tx_timeout = (tf); \ - (dev)->watchdog_timeo = (tm); \ - } while(0) - - - -/* - Theory of Operation - -I. Board Compatibility - -This device driver is designed for the Intel i82557 "Speedo3" chip, Intel's -single-chip fast Ethernet controller for PCI, as used on the Intel -EtherExpress Pro 100 adapter. - -II. Board-specific settings - -PCI bus devices are configured by the system at boot time, so no jumpers -need to be set on the board. The system BIOS should be set to assign the -PCI INTA signal to an otherwise unused system IRQ line. While it's -possible to share PCI interrupt lines, it negatively impacts performance and -only recent kernels support it. - -III. Driver operation - -IIIA. General -The Speedo3 is very similar to other Intel network chips, that is to say -"apparently designed on a different planet". This chips retains the complex -Rx and Tx descriptors and multiple buffers pointers as previous chips, but -also has simplified Tx and Rx buffer modes. This driver uses the "flexible" -Tx mode, but in a simplified lower-overhead manner: it associates only a -single buffer descriptor with each frame descriptor. - -Despite the extra space overhead in each receive skbuff, the driver must use -the simplified Rx buffer mode to assure that only a single data buffer is -associated with each RxFD. The driver implements this by reserving space -for the Rx descriptor at the head of each Rx skbuff. - -The Speedo-3 has receive and command unit base addresses that are added to -almost all descriptor pointers. The driver sets these to zero, so that all -pointer fields are absolute addresses. - -The System Control Block (SCB) of some previous Intel chips exists on the -chip in both PCI I/O and memory space. This driver uses the I/O space -registers, but might switch to memory mapped mode to better support non-x86 -processors. - -IIIB. Transmit structure - -The driver must use the complex Tx command+descriptor mode in order to -have a indirect pointer to the skbuff data section. Each Tx command block -(TxCB) is associated with two immediately appended Tx Buffer Descriptor -(TxBD). A fixed ring of these TxCB+TxBD pairs are kept as part of the -speedo_private data structure for each adapter instance. - -The newer i82558 explicitly supports this structure, and can read the two -TxBDs in the same PCI burst as the TxCB. - -This ring structure is used for all normal transmit packets, but the -transmit packet descriptors aren't long enough for most non-Tx commands such -as CmdConfigure. This is complicated by the possibility that the chip has -already loaded the link address in the previous descriptor. So for these -commands we convert the next free descriptor on the ring to a NoOp, and point -that descriptor's link to the complex command. - -An additional complexity of these non-transmit commands are that they may be -added asynchronous to the normal transmit queue, so we disable interrupts -whenever the Tx descriptor ring is manipulated. - -A notable aspect of these special configure commands is that they do -work with the normal Tx ring entry scavenge method. The Tx ring scavenge -is done at interrupt time using the 'dirty_tx' index, and checking for the -command-complete bit. While the setup frames may have the NoOp command on the -Tx ring marked as complete, but not have completed the setup command, this -is not a problem. The tx_ring entry can be still safely reused, as the -tx_skbuff[] entry is always empty for config_cmd and mc_setup frames. - -Commands may have bits set e.g. CmdSuspend in the command word to either -suspend or stop the transmit/command unit. This driver always flags the last -command with CmdSuspend, erases the CmdSuspend in the previous command, and -then issues a CU_RESUME. -Note: Watch out for the potential race condition here: imagine - erasing the previous suspend - the chip processes the previous command - the chip processes the final command, and suspends - doing the CU_RESUME - the chip processes the next-yet-valid post-final-command. -So blindly sending a CU_RESUME is only safe if we do it immediately after -after erasing the previous CmdSuspend, without the possibility of an -intervening delay. Thus the resume command is always within the -interrupts-disabled region. This is a timing dependence, but handling this -condition in a timing-independent way would considerably complicate the code. - -Note: In previous generation Intel chips, restarting the command unit was a -notoriously slow process. This is presumably no longer true. - -IIIC. Receive structure - -Because of the bus-master support on the Speedo3 this driver uses the new -SKBUFF_RX_COPYBREAK scheme, rather than a fixed intermediate receive buffer. -This scheme allocates full-sized skbuffs as receive buffers. The value -SKBUFF_RX_COPYBREAK is used as the copying breakpoint: it is chosen to -trade-off the memory wasted by passing the full-sized skbuff to the queue -layer for all frames vs. the copying cost of copying a frame to a -correctly-sized skbuff. - -For small frames the copying cost is negligible (esp. considering that we -are pre-loading the cache with immediately useful header information), so we -allocate a new, minimally-sized skbuff. For large frames the copying cost -is non-trivial, and the larger copy might flush the cache of useful data, so -we pass up the skbuff the packet was received into. - -IV. Notes - -Thanks to Steve Williams of Intel for arranging the non-disclosure agreement -that stated that I could disclose the information. But I still resent -having to sign an Intel NDA when I'm helping Intel sell their own product! - -*/ - -static int speedo_found1(struct pci_dev *pdev, void __iomem *ioaddr, int fnd_cnt, int acpi_idle_state); - -/* Offsets to the various registers. - All accesses need not be longword aligned. */ -enum speedo_offsets { - SCBStatus = 0, SCBCmd = 2, /* Rx/Command Unit command and status. */ - SCBIntmask = 3, - SCBPointer = 4, /* General purpose pointer. */ - SCBPort = 8, /* Misc. commands and operands. */ - SCBflash = 12, SCBeeprom = 14, /* EEPROM and flash memory control. */ - SCBCtrlMDI = 16, /* MDI interface control. */ - SCBEarlyRx = 20, /* Early receive byte count. */ -}; -/* Commands that can be put in a command list entry. */ -enum commands { - CmdNOp = 0, CmdIASetup = 0x10000, CmdConfigure = 0x20000, - CmdMulticastList = 0x30000, CmdTx = 0x40000, CmdTDR = 0x50000, - CmdDump = 0x60000, CmdDiagnose = 0x70000, - CmdSuspend = 0x40000000, /* Suspend after completion. */ - CmdIntr = 0x20000000, /* Interrupt after completion. */ - CmdTxFlex = 0x00080000, /* Use "Flexible mode" for CmdTx command. */ -}; -/* Clear CmdSuspend (1<<30) avoiding interference with the card access to the - status bits. Previous driver versions used separate 16 bit fields for - commands and statuses. --SAW - */ -#if defined(__alpha__) -# define clear_suspend(cmd) clear_bit(30, &(cmd)->cmd_status); -#else -# define clear_suspend(cmd) ((__le16 *)&(cmd)->cmd_status)[1] &= ~cpu_to_le16(1<<14) -#endif - -enum SCBCmdBits { - SCBMaskCmdDone=0x8000, SCBMaskRxDone=0x4000, SCBMaskCmdIdle=0x2000, - SCBMaskRxSuspend=0x1000, SCBMaskEarlyRx=0x0800, SCBMaskFlowCtl=0x0400, - SCBTriggerIntr=0x0200, SCBMaskAll=0x0100, - /* The rest are Rx and Tx commands. */ - CUStart=0x0010, CUResume=0x0020, CUStatsAddr=0x0040, CUShowStats=0x0050, - CUCmdBase=0x0060, /* CU Base address (set to zero) . */ - CUDumpStats=0x0070, /* Dump then reset stats counters. */ - RxStart=0x0001, RxResume=0x0002, RxAbort=0x0004, RxAddrLoad=0x0006, - RxResumeNoResources=0x0007, -}; - -enum SCBPort_cmds { - PortReset=0, PortSelfTest=1, PortPartialReset=2, PortDump=3, -}; - -/* The Speedo3 Rx and Tx frame/buffer descriptors. */ -struct descriptor { /* A generic descriptor. */ - volatile __le32 cmd_status; /* All command and status fields. */ - __le32 link; /* struct descriptor * */ - unsigned char params[0]; -}; - -/* The Speedo3 Rx and Tx buffer descriptors. */ -struct RxFD { /* Receive frame descriptor. */ - volatile __le32 status; - __le32 link; /* struct RxFD * */ - __le32 rx_buf_addr; /* void * */ - __le32 count; -} RxFD_ALIGNMENT; - -/* Selected elements of the Tx/RxFD.status word. */ -enum RxFD_bits { - RxComplete=0x8000, RxOK=0x2000, - RxErrCRC=0x0800, RxErrAlign=0x0400, RxErrTooBig=0x0200, RxErrSymbol=0x0010, - RxEth2Type=0x0020, RxNoMatch=0x0004, RxNoIAMatch=0x0002, - TxUnderrun=0x1000, StatusComplete=0x8000, -}; - -#define CONFIG_DATA_SIZE 22 -struct TxFD { /* Transmit frame descriptor set. */ - __le32 status; - __le32 link; /* void * */ - __le32 tx_desc_addr; /* Always points to the tx_buf_addr element. */ - __le32 count; /* # of TBD (=1), Tx start thresh., etc. */ - /* This constitutes two "TBD" entries -- we only use one. */ -#define TX_DESCR_BUF_OFFSET 16 - __le32 tx_buf_addr0; /* void *, frame to be transmitted. */ - __le32 tx_buf_size0; /* Length of Tx frame. */ - __le32 tx_buf_addr1; /* void *, frame to be transmitted. */ - __le32 tx_buf_size1; /* Length of Tx frame. */ - /* the structure must have space for at least CONFIG_DATA_SIZE starting - * from tx_desc_addr field */ -}; - -/* Multicast filter setting block. --SAW */ -struct speedo_mc_block { - struct speedo_mc_block *next; - unsigned int tx; - dma_addr_t frame_dma; - unsigned int len; - struct descriptor frame __attribute__ ((__aligned__(16))); -}; - -/* Elements of the dump_statistics block. This block must be lword aligned. */ -struct speedo_stats { - __le32 tx_good_frames; - __le32 tx_coll16_errs; - __le32 tx_late_colls; - __le32 tx_underruns; - __le32 tx_lost_carrier; - __le32 tx_deferred; - __le32 tx_one_colls; - __le32 tx_multi_colls; - __le32 tx_total_colls; - __le32 rx_good_frames; - __le32 rx_crc_errs; - __le32 rx_align_errs; - __le32 rx_resource_errs; - __le32 rx_overrun_errs; - __le32 rx_colls_errs; - __le32 rx_runt_errs; - __le32 done_marker; -}; - -enum Rx_ring_state_bits { - RrNoMem=1, RrPostponed=2, RrNoResources=4, RrOOMReported=8, -}; - -/* Do not change the position (alignment) of the first few elements! - The later elements are grouped for cache locality. - - Unfortunately, all the positions have been shifted since there. - A new re-alignment is required. 2000/03/06 SAW */ -struct speedo_private { - void __iomem *regs; - struct TxFD *tx_ring; /* Commands (usually CmdTxPacket). */ - struct RxFD *rx_ringp[RX_RING_SIZE]; /* Rx descriptor, used as ring. */ - /* The addresses of a Tx/Rx-in-place packets/buffers. */ - struct sk_buff *tx_skbuff[TX_RING_SIZE]; - struct sk_buff *rx_skbuff[RX_RING_SIZE]; - /* Mapped addresses of the rings. */ - dma_addr_t tx_ring_dma; -#define TX_RING_ELEM_DMA(sp, n) ((sp)->tx_ring_dma + (n)*sizeof(struct TxFD)) - dma_addr_t rx_ring_dma[RX_RING_SIZE]; - struct descriptor *last_cmd; /* Last command sent. */ - unsigned int cur_tx, dirty_tx; /* The ring entries to be free()ed. */ - spinlock_t lock; /* Group with Tx control cache line. */ - u32 tx_threshold; /* The value for txdesc.count. */ - struct RxFD *last_rxf; /* Last filled RX buffer. */ - dma_addr_t last_rxf_dma; - unsigned int cur_rx, dirty_rx; /* The next free ring entry */ - long last_rx_time; /* Last Rx, in jiffies, to handle Rx hang. */ - struct net_device_stats stats; - struct speedo_stats *lstats; - dma_addr_t lstats_dma; - int chip_id; - struct pci_dev *pdev; - struct timer_list timer; /* Media selection timer. */ - struct speedo_mc_block *mc_setup_head; /* Multicast setup frame list head. */ - struct speedo_mc_block *mc_setup_tail; /* Multicast setup frame list tail. */ - long in_interrupt; /* Word-aligned dev->interrupt */ - unsigned char acpi_pwr; - signed char rx_mode; /* Current PROMISC/ALLMULTI setting. */ - unsigned int tx_full:1; /* The Tx queue is full. */ - unsigned int flow_ctrl:1; /* Use 802.3x flow control. */ - unsigned int rx_bug:1; /* Work around receiver hang errata. */ - unsigned char default_port:8; /* Last dev->if_port value. */ - unsigned char rx_ring_state; /* RX ring status flags. */ - unsigned short phy[2]; /* PHY media interfaces available. */ - unsigned short partner; /* Link partner caps. */ - struct mii_if_info mii_if; /* MII API hooks, info */ - u32 msg_enable; /* debug message level */ -}; - -/* The parameters for a CmdConfigure operation. - There are so many options that it would be difficult to document each bit. - We mostly use the default or recommended settings. */ -static const char i82557_config_cmd[CONFIG_DATA_SIZE] = { - 22, 0x08, 0, 0, 0, 0, 0x32, 0x03, 1, /* 1=Use MII 0=Use AUI */ - 0, 0x2E, 0, 0x60, 0, - 0xf2, 0x48, 0, 0x40, 0xf2, 0x80, /* 0x40=Force full-duplex */ - 0x3f, 0x05, }; -static const char i82558_config_cmd[CONFIG_DATA_SIZE] = { - 22, 0x08, 0, 1, 0, 0, 0x22, 0x03, 1, /* 1=Use MII 0=Use AUI */ - 0, 0x2E, 0, 0x60, 0x08, 0x88, - 0x68, 0, 0x40, 0xf2, 0x84, /* Disable FC */ - 0x31, 0x05, }; - -/* PHY media interface chips. */ -static const char * const phys[] = { - "None", "i82553-A/B", "i82553-C", "i82503", - "DP83840", "80c240", "80c24", "i82555", - "unknown-8", "unknown-9", "DP83840A", "unknown-11", - "unknown-12", "unknown-13", "unknown-14", "unknown-15", }; -enum phy_chips { NonSuchPhy=0, I82553AB, I82553C, I82503, DP83840, S80C240, - S80C24, I82555, DP83840A=10, }; -static const char is_mii[] = { 0, 1, 1, 0, 1, 1, 0, 1 }; -#define EE_READ_CMD (6) - -static int eepro100_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent); - -static int do_eeprom_cmd(void __iomem *ioaddr, int cmd, int cmd_len); -static int mdio_read(struct net_device *dev, int phy_id, int location); -static void mdio_write(struct net_device *dev, int phy_id, int location, int value); -static int speedo_open(struct net_device *dev); -static void speedo_resume(struct net_device *dev); -static void speedo_timer(unsigned long data); -static void speedo_init_rx_ring(struct net_device *dev); -static void speedo_tx_timeout(struct net_device *dev); -static int speedo_start_xmit(struct sk_buff *skb, struct net_device *dev); -static void speedo_refill_rx_buffers(struct net_device *dev, int force); -static int speedo_rx(struct net_device *dev); -static void speedo_tx_buffer_gc(struct net_device *dev); -static irqreturn_t speedo_interrupt(int irq, void *dev_instance); -static int speedo_close(struct net_device *dev); -static struct net_device_stats *speedo_get_stats(struct net_device *dev); -static int speedo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); -static void set_rx_mode(struct net_device *dev); -static void speedo_show_state(struct net_device *dev); -static const struct ethtool_ops ethtool_ops; - - - -#ifdef honor_default_port -/* Optional driver feature to allow forcing the transceiver setting. - Not recommended. */ -static int mii_ctrl[8] = { 0x3300, 0x3100, 0x0000, 0x0100, - 0x2000, 0x2100, 0x0400, 0x3100}; -#endif - -/* How to wait for the command unit to accept a command. - Typically this takes 0 ticks. */ -static inline unsigned char wait_for_cmd_done(struct net_device *dev, - struct speedo_private *sp) -{ - int wait = 1000; - void __iomem *cmd_ioaddr = sp->regs + SCBCmd; - unsigned char r; - - do { - udelay(1); - r = ioread8(cmd_ioaddr); - } while(r && --wait >= 0); - - if (wait < 0) - printk(KERN_ALERT "%s: wait_for_cmd_done timeout!\n", dev->name); - return r; -} - -static int __devinit eepro100_init_one (struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - void __iomem *ioaddr; - int irq, pci_bar; - int acpi_idle_state = 0, pm; - static int cards_found /* = 0 */; - unsigned long pci_base; - -#ifndef MODULE - /* when built-in, we only print version if device is found */ - static int did_version; - if (did_version++ == 0) - printk(version); -#endif - - /* save power state before pci_enable_device overwrites it */ - pm = pci_find_capability(pdev, PCI_CAP_ID_PM); - if (pm) { - u16 pwr_command; - pci_read_config_word(pdev, pm + PCI_PM_CTRL, &pwr_command); - acpi_idle_state = pwr_command & PCI_PM_CTRL_STATE_MASK; - } - - if (pci_enable_device(pdev)) - goto err_out_free_mmio_region; - - pci_set_master(pdev); - - if (!request_region(pci_resource_start(pdev, 1), - pci_resource_len(pdev, 1), "eepro100")) { - dev_err(&pdev->dev, "eepro100: cannot reserve I/O ports\n"); - goto err_out_none; - } - if (!request_mem_region(pci_resource_start(pdev, 0), - pci_resource_len(pdev, 0), "eepro100")) { - dev_err(&pdev->dev, "eepro100: cannot reserve MMIO region\n"); - goto err_out_free_pio_region; - } - - irq = pdev->irq; - pci_bar = use_io ? 1 : 0; - pci_base = pci_resource_start(pdev, pci_bar); - if (DEBUG & NETIF_MSG_PROBE) - printk("Found Intel i82557 PCI Speedo at %#lx, IRQ %d.\n", - pci_base, irq); - - ioaddr = pci_iomap(pdev, pci_bar, 0); - if (!ioaddr) { - dev_err(&pdev->dev, "eepro100: cannot remap IO\n"); - goto err_out_free_mmio_region; - } - - if (speedo_found1(pdev, ioaddr, cards_found, acpi_idle_state) == 0) - cards_found++; - else - goto err_out_iounmap; - - return 0; - -err_out_iounmap: ; - pci_iounmap(pdev, ioaddr); -err_out_free_mmio_region: - release_mem_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0)); -err_out_free_pio_region: - release_region(pci_resource_start(pdev, 1), pci_resource_len(pdev, 1)); -err_out_none: - return -ENODEV; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -/* - * Polling 'interrupt' - used by things like netconsole to send skbs - * without having to re-enable interrupts. It's not called while - * the interrupt routine is executing. - */ - -static void poll_speedo (struct net_device *dev) -{ - /* disable_irq is not very nice, but with the funny lockless design - we have no other choice. */ - disable_irq(dev->irq); - speedo_interrupt (dev->irq, dev); - enable_irq(dev->irq); -} -#endif - -static int __devinit speedo_found1(struct pci_dev *pdev, - void __iomem *ioaddr, int card_idx, int acpi_idle_state) -{ - struct net_device *dev; - struct speedo_private *sp; - const char *product; - int i, option; - u16 eeprom[0x100]; - int size; - void *tx_ring_space; - dma_addr_t tx_ring_dma; - DECLARE_MAC_BUF(mac); - - size = TX_RING_SIZE * sizeof(struct TxFD) + sizeof(struct speedo_stats); - tx_ring_space = pci_alloc_consistent(pdev, size, &tx_ring_dma); - if (tx_ring_space == NULL) - return -1; - - dev = alloc_etherdev(sizeof(struct speedo_private)); - if (dev == NULL) { - printk(KERN_ERR "eepro100: Could not allocate ethernet device.\n"); - pci_free_consistent(pdev, size, tx_ring_space, tx_ring_dma); - return -1; - } - - SET_NETDEV_DEV(dev, &pdev->dev); - - if (dev->mem_start > 0) - option = dev->mem_start; - else if (card_idx >= 0 && options[card_idx] >= 0) - option = options[card_idx]; - else - option = 0; - - rtnl_lock(); - if (dev_alloc_name(dev, dev->name) < 0) - goto err_free_unlock; - - /* Read the station address EEPROM before doing the reset. - Nominally his should even be done before accepting the device, but - then we wouldn't have a device name with which to report the error. - The size test is for 6 bit vs. 8 bit address serial EEPROMs. - */ - { - void __iomem *iobase; - int read_cmd, ee_size; - u16 sum; - int j; - - /* Use IO only to avoid postponed writes and satisfy EEPROM timing - requirements. */ - iobase = pci_iomap(pdev, 1, pci_resource_len(pdev, 1)); - if (!iobase) - goto err_free_unlock; - if ((do_eeprom_cmd(iobase, EE_READ_CMD << 24, 27) & 0xffe0000) - == 0xffe0000) { - ee_size = 0x100; - read_cmd = EE_READ_CMD << 24; - } else { - ee_size = 0x40; - read_cmd = EE_READ_CMD << 22; - } - - for (j = 0, i = 0, sum = 0; i < ee_size; i++) { - u16 value = do_eeprom_cmd(iobase, read_cmd | (i << 16), 27); - eeprom[i] = value; - sum += value; - if (i < 3) { - dev->dev_addr[j++] = value; - dev->dev_addr[j++] = value >> 8; - } - } - if (sum != 0xBABA) - printk(KERN_WARNING "%s: Invalid EEPROM checksum %#4.4x, " - "check settings before activating this device!\n", - dev->name, sum); - /* Don't unregister_netdev(dev); as the EEPro may actually be - usable, especially if the MAC address is set later. - On the other hand, it may be unusable if MDI data is corrupted. */ - - pci_iounmap(pdev, iobase); - } - - /* Reset the chip: stop Tx and Rx processes and clear counters. - This takes less than 10usec and will easily finish before the next - action. */ - iowrite32(PortReset, ioaddr + SCBPort); - ioread32(ioaddr + SCBPort); - udelay(10); - - if (eeprom[3] & 0x0100) - product = "OEM i82557/i82558 10/100 Ethernet"; - else - product = pci_name(pdev); - - printk(KERN_INFO "%s: %s, %s, IRQ %d.\n", dev->name, product, - print_mac(mac, dev->dev_addr), pdev->irq); - - sp = netdev_priv(dev); - - /* we must initialize this early, for mdio_{read,write} */ - sp->regs = ioaddr; - -#if 1 || defined(kernel_bloat) - /* OK, this is pure kernel bloat. I don't like it when other drivers - waste non-pageable kernel space to emit similar messages, but I need - them for bug reports. */ - { - const char *connectors[] = {" RJ45", " BNC", " AUI", " MII"}; - /* The self-test results must be paragraph aligned. */ - volatile s32 *self_test_results; - int boguscnt = 16000; /* Timeout for set-test. */ - if ((eeprom[3] & 0x03) != 0x03) - printk(KERN_INFO " Receiver lock-up bug exists -- enabling" - " work-around.\n"); - printk(KERN_INFO " Board assembly %4.4x%2.2x-%3.3d, Physical" - " connectors present:", - eeprom[8], eeprom[9]>>8, eeprom[9] & 0xff); - for (i = 0; i < 4; i++) - if (eeprom[5] & (1<<i)) - printk(connectors[i]); - printk("\n"KERN_INFO" Primary interface chip %s PHY #%d.\n", - phys[(eeprom[6]>>8)&15], eeprom[6] & 0x1f); - if (eeprom[7] & 0x0700) - printk(KERN_INFO " Secondary interface chip %s.\n", - phys[(eeprom[7]>>8)&7]); - if (((eeprom[6]>>8) & 0x3f) == DP83840 - || ((eeprom[6]>>8) & 0x3f) == DP83840A) { - int mdi_reg23 = mdio_read(dev, eeprom[6] & 0x1f, 23) | 0x0422; - if (congenb) - mdi_reg23 |= 0x0100; - printk(KERN_INFO" DP83840 specific setup, setting register 23 to %4.4x.\n", - mdi_reg23); - mdio_write(dev, eeprom[6] & 0x1f, 23, mdi_reg23); - } - if ((option >= 0) && (option & 0x70)) { - printk(KERN_INFO " Forcing %dMbs %s-duplex operation.\n", - (option & 0x20 ? 100 : 10), - (option & 0x10 ? "full" : "half")); - mdio_write(dev, eeprom[6] & 0x1f, MII_BMCR, - ((option & 0x20) ? 0x2000 : 0) | /* 100mbps? */ - ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */ - } - - /* Perform a system self-test. */ - self_test_results = (s32*) ((((long) tx_ring_space) + 15) & ~0xf); - self_test_results[0] = 0; - self_test_results[1] = -1; - iowrite32(tx_ring_dma | PortSelfTest, ioaddr + SCBPort); - do { - udelay(10); - } while (self_test_results[1] == -1 && --boguscnt >= 0); - - if (boguscnt < 0) { /* Test optimized out. */ - printk(KERN_ERR "Self test failed, status %8.8x:\n" - KERN_ERR " Failure to initialize the i82557.\n" - KERN_ERR " Verify that the card is a bus-master" - " capable slot.\n", - self_test_results[1]); - } else - printk(KERN_INFO " General self-test: %s.\n" - KERN_INFO " Serial sub-system self-test: %s.\n" - KERN_INFO " Internal registers self-test: %s.\n" - KERN_INFO " ROM checksum self-test: %s (%#8.8x).\n", - self_test_results[1] & 0x1000 ? "failed" : "passed", - self_test_results[1] & 0x0020 ? "failed" : "passed", - self_test_results[1] & 0x0008 ? "failed" : "passed", - self_test_results[1] & 0x0004 ? "failed" : "passed", - self_test_results[0]); - } -#endif /* kernel_bloat */ - - iowrite32(PortReset, ioaddr + SCBPort); - ioread32(ioaddr + SCBPort); - udelay(10); - - /* Return the chip to its original power state. */ - pci_set_power_state(pdev, acpi_idle_state); - - pci_set_drvdata (pdev, dev); - SET_NETDEV_DEV(dev, &pdev->dev); - - dev->irq = pdev->irq; - - sp->pdev = pdev; - sp->msg_enable = DEBUG; - sp->acpi_pwr = acpi_idle_state; - sp->tx_ring = tx_ring_space; - sp->tx_ring_dma = tx_ring_dma; - sp->lstats = (struct speedo_stats *)(sp->tx_ring + TX_RING_SIZE); - sp->lstats_dma = TX_RING_ELEM_DMA(sp, TX_RING_SIZE); - init_timer(&sp->timer); /* used in ioctl() */ - spin_lock_init(&sp->lock); - - sp->mii_if.full_duplex = option >= 0 && (option & 0x10) ? 1 : 0; - if (card_idx >= 0) { - if (full_duplex[card_idx] >= 0) - sp->mii_if.full_duplex = full_duplex[card_idx]; - } - sp->default_port = option >= 0 ? (option & 0x0f) : 0; - - sp->phy[0] = eeprom[6]; - sp->phy[1] = eeprom[7]; - - sp->mii_if.phy_id = eeprom[6] & 0x1f; - sp->mii_if.phy_id_mask = 0x1f; - sp->mii_if.reg_num_mask = 0x1f; - sp->mii_if.dev = dev; - sp->mii_if.mdio_read = mdio_read; - sp->mii_if.mdio_write = mdio_write; - - sp->rx_bug = (eeprom[3] & 0x03) == 3 ? 0 : 1; - if (((pdev->device > 0x1030 && (pdev->device < 0x103F))) - || (pdev->device == 0x2449) || (pdev->device == 0x2459) - || (pdev->device == 0x245D)) { - sp->chip_id = 1; - } - - if (sp->rx_bug) - printk(KERN_INFO " Receiver lock-up workaround activated.\n"); - - /* The Speedo-specific entries in the device structure. */ - dev->open = &speedo_open; - dev->hard_start_xmit = &speedo_start_xmit; - netif_set_tx_timeout(dev, &speedo_tx_timeout, TX_TIMEOUT); - dev->stop = &speedo_close; - dev->get_stats = &speedo_get_stats; - dev->set_multicast_list = &set_rx_mode; - dev->do_ioctl = &speedo_ioctl; - SET_ETHTOOL_OPS(dev, ðtool_ops); -#ifdef CONFIG_NET_POLL_CONTROLLER - dev->poll_controller = &poll_speedo; -#endif - - if (register_netdevice(dev)) - goto err_free_unlock; - rtnl_unlock(); - - return 0; - - err_free_unlock: - rtnl_unlock(); - free_netdev(dev); - return -1; -} - -static void do_slow_command(struct net_device *dev, struct speedo_private *sp, int cmd) -{ - void __iomem *cmd_ioaddr = sp->regs + SCBCmd; - int wait = 0; - do - if (ioread8(cmd_ioaddr) == 0) break; - while(++wait <= 200); - if (wait > 100) - printk(KERN_ERR "Command %4.4x never accepted (%d polls)!\n", - ioread8(cmd_ioaddr), wait); - - iowrite8(cmd, cmd_ioaddr); - - for (wait = 0; wait <= 100; wait++) - if (ioread8(cmd_ioaddr) == 0) return; - for (; wait <= 20000; wait++) - if (ioread8(cmd_ioaddr) == 0) return; - else udelay(1); - printk(KERN_ERR "Command %4.4x was not accepted after %d polls!" - " Current status %8.8x.\n", - cmd, wait, ioread32(sp->regs + SCBStatus)); -} - -/* Serial EEPROM section. - A "bit" grungy, but we work our way through bit-by-bit :->. */ -/* EEPROM_Ctrl bits. */ -#define EE_SHIFT_CLK 0x01 /* EEPROM shift clock. */ -#define EE_CS 0x02 /* EEPROM chip select. */ -#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */ -#define EE_DATA_READ 0x08 /* EEPROM chip data out. */ -#define EE_ENB (0x4800 | EE_CS) -#define EE_WRITE_0 0x4802 -#define EE_WRITE_1 0x4806 -#define EE_OFFSET SCBeeprom - -/* The fixes for the code were kindly provided by Dragan Stancevic - <visitor@valinux.com> to strictly follow Intel specifications of EEPROM - access timing. - The publicly available sheet 64486302 (sec. 3.1) specifies 1us access - interval for serial EEPROM. However, it looks like that there is an - additional requirement dictating larger udelay's in the code below. - 2000/05/24 SAW */ -static int __devinit do_eeprom_cmd(void __iomem *ioaddr, int cmd, int cmd_len) -{ - unsigned retval = 0; - void __iomem *ee_addr = ioaddr + SCBeeprom; - - iowrite16(EE_ENB, ee_addr); udelay(2); - iowrite16(EE_ENB | EE_SHIFT_CLK, ee_addr); udelay(2); - - /* Shift the command bits out. */ - do { - short dataval = (cmd & (1 << cmd_len)) ? EE_WRITE_1 : EE_WRITE_0; - iowrite16(dataval, ee_addr); udelay(2); - iowrite16(dataval | EE_SHIFT_CLK, ee_addr); udelay(2); - retval = (retval << 1) | ((ioread16(ee_addr) & EE_DATA_READ) ? 1 : 0); - } while (--cmd_len >= 0); - iowrite16(EE_ENB, ee_addr); udelay(2); - - /* Terminate the EEPROM access. */ - iowrite16(EE_ENB & ~EE_CS, ee_addr); - return retval; -} - -static int mdio_read(struct net_device *dev, int phy_id, int location) -{ - struct speedo_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->regs; - int val, boguscnt = 64*10; /* <64 usec. to complete, typ 27 ticks */ - iowrite32(0x08000000 | (location<<16) | (phy_id<<21), ioaddr + SCBCtrlMDI); - do { - val = ioread32(ioaddr + SCBCtrlMDI); - if (--boguscnt < 0) { - printk(KERN_ERR " mdio_read() timed out with val = %8.8x.\n", val); - break; - } - } while (! (val & 0x10000000)); - return val & 0xffff; -} - -static void mdio_write(struct net_device *dev, int phy_id, int location, int value) -{ - struct speedo_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->regs; - int val, boguscnt = 64*10; /* <64 usec. to complete, typ 27 ticks */ - iowrite32(0x04000000 | (location<<16) | (phy_id<<21) | value, - ioaddr + SCBCtrlMDI); - do { - val = ioread32(ioaddr + SCBCtrlMDI); - if (--boguscnt < 0) { - printk(KERN_ERR" mdio_write() timed out with val = %8.8x.\n", val); - break; - } - } while (! (val & 0x10000000)); -} - -static int -speedo_open(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->regs; - int retval; - - if (netif_msg_ifup(sp)) - printk(KERN_DEBUG "%s: speedo_open() irq %d.\n", dev->name, dev->irq); - - pci_set_power_state(sp->pdev, PCI_D0); - - /* Set up the Tx queue early.. */ - sp->cur_tx = 0; - sp->dirty_tx = 0; - sp->last_cmd = NULL; - sp->tx_full = 0; - sp->in_interrupt = 0; - - /* .. we can safely take handler calls during init. */ - retval = request_irq(dev->irq, &speedo_interrupt, IRQF_SHARED, dev->name, dev); - if (retval) { - return retval; - } - - dev->if_port = sp->default_port; - -#ifdef oh_no_you_dont_unless_you_honour_the_options_passed_in_to_us - /* Retrigger negotiation to reset previous errors. */ - if ((sp->phy[0] & 0x8000) == 0) { - int phy_addr = sp->phy[0] & 0x1f ; - /* Use 0x3300 for restarting NWay, other values to force xcvr: - 0x0000 10-HD - 0x0100 10-FD - 0x2000 100-HD - 0x2100 100-FD - */ -#ifdef honor_default_port - mdio_write(dev, phy_addr, MII_BMCR, mii_ctrl[dev->default_port & 7]); -#else - mdio_write(dev, phy_addr, MII_BMCR, 0x3300); -#endif - } -#endif - - speedo_init_rx_ring(dev); - - /* Fire up the hardware. */ - iowrite16(SCBMaskAll, ioaddr + SCBCmd); - speedo_resume(dev); - - netdevice_start(dev); - netif_start_queue(dev); - - /* Setup the chip and configure the multicast list. */ - sp->mc_setup_head = NULL; - sp->mc_setup_tail = NULL; - sp->flow_ctrl = sp->partner = 0; - sp->rx_mode = -1; /* Invalid -> always reset the mode. */ - set_rx_mode(dev); - if ((sp->phy[0] & 0x8000) == 0) - sp->mii_if.advertising = mdio_read(dev, sp->phy[0] & 0x1f, MII_ADVERTISE); - - mii_check_link(&sp->mii_if); - - if (netif_msg_ifup(sp)) { - printk(KERN_DEBUG "%s: Done speedo_open(), status %8.8x.\n", - dev->name, ioread16(ioaddr + SCBStatus)); - } - - /* Set the timer. The timer serves a dual purpose: - 1) to monitor the media interface (e.g. link beat) and perhaps switch - to an alternate media type - 2) to monitor Rx activity, and restart the Rx process if the receiver - hangs. */ - sp->timer.expires = RUN_AT((24*HZ)/10); /* 2.4 sec. */ - sp->timer.data = (unsigned long)dev; - sp->timer.function = &speedo_timer; /* timer handler */ - add_timer(&sp->timer); - - /* No need to wait for the command unit to accept here. */ - if ((sp->phy[0] & 0x8000) == 0) - mdio_read(dev, sp->phy[0] & 0x1f, MII_BMCR); - - return 0; -} - -/* Start the chip hardware after a full reset. */ -static void speedo_resume(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->regs; - - /* Start with a Tx threshold of 256 (0x..20.... 8 byte units). */ - sp->tx_threshold = 0x01208000; - - /* Set the segment registers to '0'. */ - if (wait_for_cmd_done(dev, sp) != 0) { - iowrite32(PortPartialReset, ioaddr + SCBPort); - udelay(10); - } - - iowrite32(0, ioaddr + SCBPointer); - ioread32(ioaddr + SCBPointer); /* Flush to PCI. */ - udelay(10); /* Bogus, but it avoids the bug. */ - - /* Note: these next two operations can take a while. */ - do_slow_command(dev, sp, RxAddrLoad); - do_slow_command(dev, sp, CUCmdBase); - - /* Load the statistics block and rx ring addresses. */ - iowrite32(sp->lstats_dma, ioaddr + SCBPointer); - ioread32(ioaddr + SCBPointer); /* Flush to PCI */ - - iowrite8(CUStatsAddr, ioaddr + SCBCmd); - sp->lstats->done_marker = 0; - wait_for_cmd_done(dev, sp); - - if (sp->rx_ringp[sp->cur_rx % RX_RING_SIZE] == NULL) { - if (netif_msg_rx_err(sp)) - printk(KERN_DEBUG "%s: NULL cur_rx in speedo_resume().\n", - dev->name); - } else { - iowrite32(sp->rx_ring_dma[sp->cur_rx % RX_RING_SIZE], - ioaddr + SCBPointer); - ioread32(ioaddr + SCBPointer); /* Flush to PCI */ - } - - /* Note: RxStart should complete instantly. */ - do_slow_command(dev, sp, RxStart); - do_slow_command(dev, sp, CUDumpStats); - - /* Fill the first command with our physical address. */ - { - struct descriptor *ias_cmd; - - ias_cmd = - (struct descriptor *)&sp->tx_ring[sp->cur_tx++ % TX_RING_SIZE]; - /* Avoid a bug(?!) here by marking the command already completed. */ - ias_cmd->cmd_status = cpu_to_le32((CmdSuspend | CmdIASetup) | 0xa000); - ias_cmd->link = - cpu_to_le32(TX_RING_ELEM_DMA(sp, sp->cur_tx % TX_RING_SIZE)); - memcpy(ias_cmd->params, dev->dev_addr, 6); - if (sp->last_cmd) - clear_suspend(sp->last_cmd); - sp->last_cmd = ias_cmd; - } - - /* Start the chip's Tx process and unmask interrupts. */ - iowrite32(TX_RING_ELEM_DMA(sp, sp->dirty_tx % TX_RING_SIZE), - ioaddr + SCBPointer); - /* We are not ACK-ing FCP and ER in the interrupt handler yet so they should - remain masked --Dragan */ - iowrite16(CUStart | SCBMaskEarlyRx | SCBMaskFlowCtl, ioaddr + SCBCmd); -} - -/* - * Sometimes the receiver stops making progress. This routine knows how to - * get it going again, without losing packets or being otherwise nasty like - * a chip reset would be. Previously the driver had a whole sequence - * of if RxSuspended, if it's no buffers do one thing, if it's no resources, - * do another, etc. But those things don't really matter. Separate logic - * in the ISR provides for allocating buffers--the other half of operation - * is just making sure the receiver is active. speedo_rx_soft_reset does that. - * This problem with the old, more involved algorithm is shown up under - * ping floods on the order of 60K packets/second on a 100Mbps fdx network. - */ -static void -speedo_rx_soft_reset(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - struct RxFD *rfd; - void __iomem *ioaddr; - - ioaddr = sp->regs; - if (wait_for_cmd_done(dev, sp) != 0) { - printk("%s: previous command stalled\n", dev->name); - return; - } - /* - * Put the hardware into a known state. - */ - iowrite8(RxAbort, ioaddr + SCBCmd); - - rfd = sp->rx_ringp[sp->cur_rx % RX_RING_SIZE]; - - rfd->rx_buf_addr = cpu_to_le32(0xffffffff); - - if (wait_for_cmd_done(dev, sp) != 0) { - printk("%s: RxAbort command stalled\n", dev->name); - return; - } - iowrite32(sp->rx_ring_dma[sp->cur_rx % RX_RING_SIZE], - ioaddr + SCBPointer); - iowrite8(RxStart, ioaddr + SCBCmd); -} - - -/* Media monitoring and control. */ -static void speedo_timer(unsigned long data) -{ - struct net_device *dev = (struct net_device *)data; - struct speedo_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->regs; - int phy_num = sp->phy[0] & 0x1f; - - /* We have MII and lost link beat. */ - if ((sp->phy[0] & 0x8000) == 0) { - int partner = mdio_read(dev, phy_num, MII_LPA); - if (partner != sp->partner) { - int flow_ctrl = sp->mii_if.advertising & partner & 0x0400 ? 1 : 0; - if (netif_msg_link(sp)) { - printk(KERN_DEBUG "%s: Link status change.\n", dev->name); - printk(KERN_DEBUG "%s: Old partner %x, new %x, adv %x.\n", - dev->name, sp->partner, partner, sp->mii_if.advertising); - } - sp->partner = partner; - if (flow_ctrl != sp->flow_ctrl) { - sp->flow_ctrl = flow_ctrl; - sp->rx_mode = -1; /* Trigger a reload. */ - } - } - } - mii_check_link(&sp->mii_if); - if (netif_msg_timer(sp)) { - printk(KERN_DEBUG "%s: Media control tick, status %4.4x.\n", - dev->name, ioread16(ioaddr + SCBStatus)); - } - if (sp->rx_mode < 0 || - (sp->rx_bug && jiffies - sp->last_rx_time > 2*HZ)) { - /* We haven't received a packet in a Long Time. We might have been - bitten by the receiver hang bug. This can be cleared by sending - a set multicast list command. */ - if (netif_msg_timer(sp)) - printk(KERN_DEBUG "%s: Sending a multicast list set command" - " from a timer routine," - " m=%d, j=%ld, l=%ld.\n", - dev->name, sp->rx_mode, jiffies, sp->last_rx_time); - set_rx_mode(dev); - } - /* We must continue to monitor the media. */ - sp->timer.expires = RUN_AT(2*HZ); /* 2.0 sec. */ - add_timer(&sp->timer); -} - -static void speedo_show_state(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - int i; - - if (netif_msg_pktdata(sp)) { - printk(KERN_DEBUG "%s: Tx ring dump, Tx queue %u / %u:\n", - dev->name, sp->cur_tx, sp->dirty_tx); - for (i = 0; i < TX_RING_SIZE; i++) - printk(KERN_DEBUG "%s: %c%c%2d %8.8x.\n", dev->name, - i == sp->dirty_tx % TX_RING_SIZE ? '*' : ' ', - i == sp->cur_tx % TX_RING_SIZE ? '=' : ' ', - i, sp->tx_ring[i].status); - - printk(KERN_DEBUG "%s: Printing Rx ring" - " (next to receive into %u, dirty index %u).\n", - dev->name, sp->cur_rx, sp->dirty_rx); - for (i = 0; i < RX_RING_SIZE; i++) - printk(KERN_DEBUG "%s: %c%c%c%2d %8.8x.\n", dev->name, - sp->rx_ringp[i] == sp->last_rxf ? 'l' : ' ', - i == sp->dirty_rx % RX_RING_SIZE ? '*' : ' ', - i == sp->cur_rx % RX_RING_SIZE ? '=' : ' ', - i, (sp->rx_ringp[i] != NULL) ? - (unsigned)sp->rx_ringp[i]->status : 0); - } - -#if 0 - { - void __iomem *ioaddr = sp->regs; - int phy_num = sp->phy[0] & 0x1f; - for (i = 0; i < 16; i++) { - /* FIXME: what does it mean? --SAW */ - if (i == 6) i = 21; - printk(KERN_DEBUG "%s: PHY index %d register %d is %4.4x.\n", - dev->name, phy_num, i, mdio_read(dev, phy_num, i)); - } - } -#endif - -} - -/* Initialize the Rx and Tx rings, along with various 'dev' bits. */ -static void -speedo_init_rx_ring(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - struct RxFD *rxf, *last_rxf = NULL; - dma_addr_t last_rxf_dma = 0 /* to shut up the compiler */; - int i; - - sp->cur_rx = 0; - - for (i = 0; i < RX_RING_SIZE; i++) { - struct sk_buff *skb; - skb = dev_alloc_skb(PKT_BUF_SZ + sizeof(struct RxFD)); - if (skb) - rx_align(skb); /* Align IP on 16 byte boundary */ - sp->rx_skbuff[i] = skb; - if (skb == NULL) - break; /* OK. Just initially short of Rx bufs. */ - skb->dev = dev; /* Mark as being used by this device. */ - rxf = (struct RxFD *)skb->data; - sp->rx_ringp[i] = rxf; - sp->rx_ring_dma[i] = - pci_map_single(sp->pdev, rxf, - PKT_BUF_SZ + sizeof(struct RxFD), PCI_DMA_BIDIRECTIONAL); - skb_reserve(skb, sizeof(struct RxFD)); - if (last_rxf) { - last_rxf->link = cpu_to_le32(sp->rx_ring_dma[i]); - pci_dma_sync_single_for_device(sp->pdev, last_rxf_dma, - sizeof(struct RxFD), PCI_DMA_TODEVICE); - } - last_rxf = rxf; - last_rxf_dma = sp->rx_ring_dma[i]; - rxf->status = cpu_to_le32(0x00000001); /* '1' is flag value only. */ - rxf->link = 0; /* None yet. */ - /* This field unused by i82557. */ - rxf->rx_buf_addr = cpu_to_le32(0xffffffff); - rxf->count = cpu_to_le32(PKT_BUF_SZ << 16); - pci_dma_sync_single_for_device(sp->pdev, sp->rx_ring_dma[i], - sizeof(struct RxFD), PCI_DMA_TODEVICE); - } - sp->dirty_rx = (unsigned int)(i - RX_RING_SIZE); - /* Mark the last entry as end-of-list. */ - last_rxf->status = cpu_to_le32(0xC0000002); /* '2' is flag value only. */ - pci_dma_sync_single_for_device(sp->pdev, sp->rx_ring_dma[RX_RING_SIZE-1], - sizeof(struct RxFD), PCI_DMA_TODEVICE); - sp->last_rxf = last_rxf; - sp->last_rxf_dma = last_rxf_dma; -} - -static void speedo_purge_tx(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - int entry; - - while ((int)(sp->cur_tx - sp->dirty_tx) > 0) { - entry = sp->dirty_tx % TX_RING_SIZE; - if (sp->tx_skbuff[entry]) { - sp->stats.tx_errors++; - pci_unmap_single(sp->pdev, - le32_to_cpu(sp->tx_ring[entry].tx_buf_addr0), - sp->tx_skbuff[entry]->len, PCI_DMA_TODEVICE); - dev_kfree_skb_irq(sp->tx_skbuff[entry]); - sp->tx_skbuff[entry] = NULL; - } - sp->dirty_tx++; - } - while (sp->mc_setup_head != NULL) { - struct speedo_mc_block *t; - if (netif_msg_tx_err(sp)) - printk(KERN_DEBUG "%s: freeing mc frame.\n", dev->name); - pci_unmap_single(sp->pdev, sp->mc_setup_head->frame_dma, - sp->mc_setup_head->len, PCI_DMA_TODEVICE); - t = sp->mc_setup_head->next; - kfree(sp->mc_setup_head); - sp->mc_setup_head = t; - } - sp->mc_setup_tail = NULL; - sp->tx_full = 0; - netif_wake_queue(dev); -} - -static void reset_mii(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - - /* Reset the MII transceiver, suggested by Fred Young @ scalable.com. */ - if ((sp->phy[0] & 0x8000) == 0) { - int phy_addr = sp->phy[0] & 0x1f; - int advertising = mdio_read(dev, phy_addr, MII_ADVERTISE); - int mii_bmcr = mdio_read(dev, phy_addr, MII_BMCR); - mdio_write(dev, phy_addr, MII_BMCR, 0x0400); - mdio_write(dev, phy_addr, MII_BMSR, 0x0000); - mdio_write(dev, phy_addr, MII_ADVERTISE, 0x0000); - mdio_write(dev, phy_addr, MII_BMCR, 0x8000); -#ifdef honor_default_port - mdio_write(dev, phy_addr, MII_BMCR, mii_ctrl[dev->default_port & 7]); -#else - mdio_read(dev, phy_addr, MII_BMCR); - mdio_write(dev, phy_addr, MII_BMCR, mii_bmcr); - mdio_write(dev, phy_addr, MII_ADVERTISE, advertising); -#endif - } -} - -static void speedo_tx_timeout(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->regs; - int status = ioread16(ioaddr + SCBStatus); - unsigned long flags; - - if (netif_msg_tx_err(sp)) { - printk(KERN_WARNING "%s: Transmit timed out: status %4.4x " - " %4.4x at %d/%d command %8.8x.\n", - dev->name, status, ioread16(ioaddr + SCBCmd), - sp->dirty_tx, sp->cur_tx, - sp->tx_ring[sp->dirty_tx % TX_RING_SIZE].status); - - } - speedo_show_state(dev); -#if 0 - if ((status & 0x00C0) != 0x0080 - && (status & 0x003C) == 0x0010) { - /* Only the command unit has stopped. */ - printk(KERN_WARNING "%s: Trying to restart the transmitter...\n", - dev->name); - iowrite32(TX_RING_ELEM_DMA(sp, dirty_tx % TX_RING_SIZE]), - ioaddr + SCBPointer); - iowrite16(CUStart, ioaddr + SCBCmd); - reset_mii(dev); - } else { -#else - { -#endif - del_timer_sync(&sp->timer); - /* Reset the Tx and Rx units. */ - iowrite32(PortReset, ioaddr + SCBPort); - /* We may get spurious interrupts here. But I don't think that they - may do much harm. 1999/12/09 SAW */ - udelay(10); - /* Disable interrupts. */ - iowrite16(SCBMaskAll, ioaddr + SCBCmd); - synchronize_irq(dev->irq); - speedo_tx_buffer_gc(dev); - /* Free as much as possible. - It helps to recover from a hang because of out-of-memory. - It also simplifies speedo_resume() in case TX ring is full or - close-to-be full. */ - speedo_purge_tx(dev); - speedo_refill_rx_buffers(dev, 1); - spin_lock_irqsave(&sp->lock, flags); - speedo_resume(dev); - sp->rx_mode = -1; - dev->trans_start = jiffies; - spin_unlock_irqrestore(&sp->lock, flags); - set_rx_mode(dev); /* it takes the spinlock itself --SAW */ - /* Reset MII transceiver. Do it before starting the timer to serialize - mdio_xxx operations. Yes, it's a paranoya :-) 2000/05/09 SAW */ - reset_mii(dev); - sp->timer.expires = RUN_AT(2*HZ); - add_timer(&sp->timer); - } - return; -} - -static int -speedo_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->regs; - int entry; - - /* Prevent interrupts from changing the Tx ring from underneath us. */ - unsigned long flags; - - spin_lock_irqsave(&sp->lock, flags); - - /* Check if there are enough space. */ - if ((int)(sp->cur_tx - sp->dirty_tx) >= TX_QUEUE_LIMIT) { - printk(KERN_ERR "%s: incorrect tbusy state, fixed.\n", dev->name); - netif_stop_queue(dev); - sp->tx_full = 1; - spin_unlock_irqrestore(&sp->lock, flags); - return 1; - } - - /* Calculate the Tx descriptor entry. */ - entry = sp->cur_tx++ % TX_RING_SIZE; - - sp->tx_skbuff[entry] = skb; - sp->tx_ring[entry].status = - cpu_to_le32(CmdSuspend | CmdTx | CmdTxFlex); - if (!(entry & ((TX_RING_SIZE>>2)-1))) - sp->tx_ring[entry].status |= cpu_to_le32(CmdIntr); - sp->tx_ring[entry].link = - cpu_to_le32(TX_RING_ELEM_DMA(sp, sp->cur_tx % TX_RING_SIZE)); - sp->tx_ring[entry].tx_desc_addr = - cpu_to_le32(TX_RING_ELEM_DMA(sp, entry) + TX_DESCR_BUF_OFFSET); - /* The data region is always in one buffer descriptor. */ - sp->tx_ring[entry].count = cpu_to_le32(sp->tx_threshold); - sp->tx_ring[entry].tx_buf_addr0 = - cpu_to_le32(pci_map_single(sp->pdev, skb->data, - skb->len, PCI_DMA_TODEVICE)); - sp->tx_ring[entry].tx_buf_size0 = cpu_to_le32(skb->len); - - /* workaround for hardware bug on 10 mbit half duplex */ - - if ((sp->partner == 0) && (sp->chip_id == 1)) { - wait_for_cmd_done(dev, sp); - iowrite8(0 , ioaddr + SCBCmd); - udelay(1); - } - - /* Trigger the command unit resume. */ - wait_for_cmd_done(dev, sp); - clear_suspend(sp->last_cmd); - /* We want the time window between clearing suspend flag on the previous - command and resuming CU to be as small as possible. - Interrupts in between are very undesired. --SAW */ - iowrite8(CUResume, ioaddr + SCBCmd); - sp->last_cmd = (struct descriptor *)&sp->tx_ring[entry]; - - /* Leave room for set_rx_mode(). If there is no more space than reserved - for multicast filter mark the ring as full. */ - if ((int)(sp->cur_tx - sp->dirty_tx) >= TX_QUEUE_LIMIT) { - netif_stop_queue(dev); - sp->tx_full = 1; - } - - spin_unlock_irqrestore(&sp->lock, flags); - - dev->trans_start = jiffies; - - return 0; -} - -static void speedo_tx_buffer_gc(struct net_device *dev) -{ - unsigned int dirty_tx; - struct speedo_private *sp = netdev_priv(dev); - - dirty_tx = sp->dirty_tx; - while ((int)(sp->cur_tx - dirty_tx) > 0) { - int entry = dirty_tx % TX_RING_SIZE; - int status = le32_to_cpu(sp->tx_ring[entry].status); - - if (netif_msg_tx_done(sp)) - printk(KERN_DEBUG " scavenge candidate %d status %4.4x.\n", - entry, status); - if ((status & StatusComplete) == 0) - break; /* It still hasn't been processed. */ - if (status & TxUnderrun) - if (sp->tx_threshold < 0x01e08000) { - if (netif_msg_tx_err(sp)) - printk(KERN_DEBUG "%s: TX underrun, threshold adjusted.\n", - dev->name); - sp->tx_threshold += 0x00040000; - } - /* Free the original skb. */ - if (sp->tx_skbuff[entry]) { - sp->stats.tx_packets++; /* Count only user packets. */ - sp->stats.tx_bytes += sp->tx_skbuff[entry]->len; - pci_unmap_single(sp->pdev, - le32_to_cpu(sp->tx_ring[entry].tx_buf_addr0), - sp->tx_skbuff[entry]->len, PCI_DMA_TODEVICE); - dev_kfree_skb_irq(sp->tx_skbuff[entry]); - sp->tx_skbuff[entry] = NULL; - } - dirty_tx++; - } - - if (netif_msg_tx_err(sp) && (int)(sp->cur_tx - dirty_tx) > TX_RING_SIZE) { - printk(KERN_ERR "out-of-sync dirty pointer, %d vs. %d," - " full=%d.\n", - dirty_tx, sp->cur_tx, sp->tx_full); - dirty_tx += TX_RING_SIZE; - } - - while (sp->mc_setup_head != NULL - && (int)(dirty_tx - sp->mc_setup_head->tx - 1) > 0) { - struct speedo_mc_block *t; - if (netif_msg_tx_err(sp)) - printk(KERN_DEBUG "%s: freeing mc frame.\n", dev->name); - pci_unmap_single(sp->pdev, sp->mc_setup_head->frame_dma, - sp->mc_setup_head->len, PCI_DMA_TODEVICE); - t = sp->mc_setup_head->next; - kfree(sp->mc_setup_head); - sp->mc_setup_head = t; - } - if (sp->mc_setup_head == NULL) - sp->mc_setup_tail = NULL; - - sp->dirty_tx = dirty_tx; -} - -/* The interrupt handler does all of the Rx thread work and cleans up - after the Tx thread. */ -static irqreturn_t speedo_interrupt(int irq, void *dev_instance) -{ - struct net_device *dev = (struct net_device *)dev_instance; - struct speedo_private *sp; - void __iomem *ioaddr; - long boguscnt = max_interrupt_work; - unsigned short status; - unsigned int handled = 0; - - sp = netdev_priv(dev); - ioaddr = sp->regs; - -#ifndef final_version - /* A lock to prevent simultaneous entry on SMP machines. */ - if (test_and_set_bit(0, (void*)&sp->in_interrupt)) { - printk(KERN_ERR"%s: SMP simultaneous entry of an interrupt handler.\n", - dev->name); - sp->in_interrupt = 0; /* Avoid halting machine. */ - return IRQ_NONE; - } -#endif - - do { - status = ioread16(ioaddr + SCBStatus); - /* Acknowledge all of the current interrupt sources ASAP. */ - /* Will change from 0xfc00 to 0xff00 when we start handling - FCP and ER interrupts --Dragan */ - iowrite16(status & 0xfc00, ioaddr + SCBStatus); - - if (netif_msg_intr(sp)) - printk(KERN_DEBUG "%s: interrupt status=%#4.4x.\n", - dev->name, status); - - if ((status & 0xfc00) == 0) - break; - handled = 1; - - - if ((status & 0x5000) || /* Packet received, or Rx error. */ - (sp->rx_ring_state&(RrNoMem|RrPostponed)) == RrPostponed) - /* Need to gather the postponed packet. */ - speedo_rx(dev); - - /* Always check if all rx buffers are allocated. --SAW */ - speedo_refill_rx_buffers(dev, 0); - - spin_lock(&sp->lock); - /* - * The chip may have suspended reception for various reasons. - * Check for that, and re-prime it should this be the case. - */ - switch ((status >> 2) & 0xf) { - case 0: /* Idle */ - break; - case 1: /* Suspended */ - case 2: /* No resources (RxFDs) */ - case 9: /* Suspended with no more RBDs */ - case 10: /* No resources due to no RBDs */ - case 12: /* Ready with no RBDs */ - speedo_rx_soft_reset(dev); - break; - case 3: case 5: case 6: case 7: case 8: - case 11: case 13: case 14: case 15: - /* these are all reserved values */ - break; - } - - - /* User interrupt, Command/Tx unit interrupt or CU not active. */ - if (status & 0xA400) { - speedo_tx_buffer_gc(dev); - if (sp->tx_full - && (int)(sp->cur_tx - sp->dirty_tx) < TX_QUEUE_UNFULL) { - /* The ring is no longer full. */ - sp->tx_full = 0; - netif_wake_queue(dev); /* Attention: under a spinlock. --SAW */ - } - } - - spin_unlock(&sp->lock); - - if (--boguscnt < 0) { - printk(KERN_ERR "%s: Too much work at interrupt, status=0x%4.4x.\n", - dev->name, status); - /* Clear all interrupt sources. */ - /* Will change from 0xfc00 to 0xff00 when we start handling - FCP and ER interrupts --Dragan */ - iowrite16(0xfc00, ioaddr + SCBStatus); - break; - } - } while (1); - - if (netif_msg_intr(sp)) - printk(KERN_DEBUG "%s: exiting interrupt, status=%#4.4x.\n", - dev->name, ioread16(ioaddr + SCBStatus)); - - clear_bit(0, (void*)&sp->in_interrupt); - return IRQ_RETVAL(handled); -} - -static inline struct RxFD *speedo_rx_alloc(struct net_device *dev, int entry) -{ - struct speedo_private *sp = netdev_priv(dev); - struct RxFD *rxf; - struct sk_buff *skb; - /* Get a fresh skbuff to replace the consumed one. */ - skb = dev_alloc_skb(PKT_BUF_SZ + sizeof(struct RxFD)); - if (skb) - rx_align(skb); /* Align IP on 16 byte boundary */ - sp->rx_skbuff[entry] = skb; - if (skb == NULL) { - sp->rx_ringp[entry] = NULL; - return NULL; - } - rxf = sp->rx_ringp[entry] = (struct RxFD *)skb->data; - sp->rx_ring_dma[entry] = - pci_map_single(sp->pdev, rxf, - PKT_BUF_SZ + sizeof(struct RxFD), PCI_DMA_FROMDEVICE); - skb->dev = dev; - skb_reserve(skb, sizeof(struct RxFD)); - rxf->rx_buf_addr = cpu_to_le32(0xffffffff); - pci_dma_sync_single_for_device(sp->pdev, sp->rx_ring_dma[entry], - sizeof(struct RxFD), PCI_DMA_TODEVICE); - return rxf; -} - -static inline void speedo_rx_link(struct net_device *dev, int entry, - struct RxFD *rxf, dma_addr_t rxf_dma) -{ - struct speedo_private *sp = netdev_priv(dev); - rxf->status = cpu_to_le32(0xC0000001); /* '1' for driver use only. */ - rxf->link = 0; /* None yet. */ - rxf->count = cpu_to_le32(PKT_BUF_SZ << 16); - sp->last_rxf->link = cpu_to_le32(rxf_dma); - sp->last_rxf->status &= cpu_to_le32(~0xC0000000); - pci_dma_sync_single_for_device(sp->pdev, sp->last_rxf_dma, - sizeof(struct RxFD), PCI_DMA_TODEVICE); - sp->last_rxf = rxf; - sp->last_rxf_dma = rxf_dma; -} - -static int speedo_refill_rx_buf(struct net_device *dev, int force) -{ - struct speedo_private *sp = netdev_priv(dev); - int entry; - struct RxFD *rxf; - - entry = sp->dirty_rx % RX_RING_SIZE; - if (sp->rx_skbuff[entry] == NULL) { - rxf = speedo_rx_alloc(dev, entry); - if (rxf == NULL) { - unsigned int forw; - int forw_entry; - if (netif_msg_rx_err(sp) || !(sp->rx_ring_state & RrOOMReported)) { - printk(KERN_WARNING "%s: can't fill rx buffer (force %d)!\n", - dev->name, force); - sp->rx_ring_state |= RrOOMReported; - } - speedo_show_state(dev); - if (!force) - return -1; /* Better luck next time! */ - /* Borrow an skb from one of next entries. */ - for (forw = sp->dirty_rx + 1; forw != sp->cur_rx; forw++) - if (sp->rx_skbuff[forw % RX_RING_SIZE] != NULL) - break; - if (forw == sp->cur_rx) - return -1; - forw_entry = forw % RX_RING_SIZE; - sp->rx_skbuff[entry] = sp->rx_skbuff[forw_entry]; - sp->rx_skbuff[forw_entry] = NULL; - rxf = sp->rx_ringp[forw_entry]; - sp->rx_ringp[forw_entry] = NULL; - sp->rx_ringp[entry] = rxf; - } - } else { - rxf = sp->rx_ringp[entry]; - } - speedo_rx_link(dev, entry, rxf, sp->rx_ring_dma[entry]); - sp->dirty_rx++; - sp->rx_ring_state &= ~(RrNoMem|RrOOMReported); /* Mark the progress. */ - return 0; -} - -static void speedo_refill_rx_buffers(struct net_device *dev, int force) -{ - struct speedo_private *sp = netdev_priv(dev); - - /* Refill the RX ring. */ - while ((int)(sp->cur_rx - sp->dirty_rx) > 0 && - speedo_refill_rx_buf(dev, force) != -1); -} - -static int -speedo_rx(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - int entry = sp->cur_rx % RX_RING_SIZE; - int rx_work_limit = sp->dirty_rx + RX_RING_SIZE - sp->cur_rx; - int alloc_ok = 1; - int npkts = 0; - - if (netif_msg_intr(sp)) - printk(KERN_DEBUG " In speedo_rx().\n"); - /* If we own the next entry, it's a new packet. Send it up. */ - while (sp->rx_ringp[entry] != NULL) { - int status; - int pkt_len; - - pci_dma_sync_single_for_cpu(sp->pdev, sp->rx_ring_dma[entry], - sizeof(struct RxFD), PCI_DMA_FROMDEVICE); - status = le32_to_cpu(sp->rx_ringp[entry]->status); - pkt_len = le32_to_cpu(sp->rx_ringp[entry]->count) & 0x3fff; - - if (!(status & RxComplete)) - break; - - if (--rx_work_limit < 0) - break; - - /* Check for a rare out-of-memory case: the current buffer is - the last buffer allocated in the RX ring. --SAW */ - if (sp->last_rxf == sp->rx_ringp[entry]) { - /* Postpone the packet. It'll be reaped at an interrupt when this - packet is no longer the last packet in the ring. */ - if (netif_msg_rx_err(sp)) - printk(KERN_DEBUG "%s: RX packet postponed!\n", - dev->name); - sp->rx_ring_state |= RrPostponed; - break; - } - - if (netif_msg_rx_status(sp)) - printk(KERN_DEBUG " speedo_rx() status %8.8x len %d.\n", status, - pkt_len); - if ((status & (RxErrTooBig|RxOK|0x0f90)) != RxOK) { - if (status & RxErrTooBig) - printk(KERN_ERR "%s: Ethernet frame overran the Rx buffer, " - "status %8.8x!\n", dev->name, status); - else if (! (status & RxOK)) { - /* There was a fatal error. This *should* be impossible. */ - sp->stats.rx_errors++; - printk(KERN_ERR "%s: Anomalous event in speedo_rx(), " - "status %8.8x.\n", - dev->name, status); - } - } else { - struct sk_buff *skb; - - /* Check if the packet is long enough to just accept without - copying to a properly sized skbuff. */ - if (pkt_len < rx_copybreak - && (skb = dev_alloc_skb(pkt_len + 2)) != NULL) { - skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ - /* 'skb_put()' points to the start of sk_buff data area. */ - pci_dma_sync_single_for_cpu(sp->pdev, sp->rx_ring_dma[entry], - sizeof(struct RxFD) + pkt_len, - PCI_DMA_FROMDEVICE); - -#if 1 || USE_IP_CSUM - /* Packet is in one chunk -- we can copy + cksum. */ - skb_copy_to_linear_data(skb, sp->rx_skbuff[entry]->data, pkt_len); - skb_put(skb, pkt_len); -#else - skb_copy_from_linear_data(sp->rx_skbuff[entry], - skb_put(skb, pkt_len), - pkt_len); -#endif - pci_dma_sync_single_for_device(sp->pdev, sp->rx_ring_dma[entry], - sizeof(struct RxFD) + pkt_len, - PCI_DMA_FROMDEVICE); - npkts++; - } else { - /* Pass up the already-filled skbuff. */ - skb = sp->rx_skbuff[entry]; - if (skb == NULL) { - printk(KERN_ERR "%s: Inconsistent Rx descriptor chain.\n", - dev->name); - break; - } - sp->rx_skbuff[entry] = NULL; - skb_put(skb, pkt_len); - npkts++; - sp->rx_ringp[entry] = NULL; - pci_unmap_single(sp->pdev, sp->rx_ring_dma[entry], - PKT_BUF_SZ + sizeof(struct RxFD), - PCI_DMA_FROMDEVICE); - } - skb->protocol = eth_type_trans(skb, dev); - netif_rx(skb); - dev->last_rx = jiffies; - sp->stats.rx_packets++; - sp->stats.rx_bytes += pkt_len; - } - entry = (++sp->cur_rx) % RX_RING_SIZE; - sp->rx_ring_state &= ~RrPostponed; - /* Refill the recently taken buffers. - Do it one-by-one to handle traffic bursts better. */ - if (alloc_ok && speedo_refill_rx_buf(dev, 0) == -1) - alloc_ok = 0; - } - - /* Try hard to refill the recently taken buffers. */ - speedo_refill_rx_buffers(dev, 1); - - if (npkts) - sp->last_rx_time = jiffies; - - return 0; -} - -static int -speedo_close(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->regs; - int i; - - netdevice_stop(dev); - netif_stop_queue(dev); - - if (netif_msg_ifdown(sp)) - printk(KERN_DEBUG "%s: Shutting down ethercard, status was %4.4x.\n", - dev->name, ioread16(ioaddr + SCBStatus)); - - /* Shut off the media monitoring timer. */ - del_timer_sync(&sp->timer); - - iowrite16(SCBMaskAll, ioaddr + SCBCmd); - - /* Shutting down the chip nicely fails to disable flow control. So.. */ - iowrite32(PortPartialReset, ioaddr + SCBPort); - ioread32(ioaddr + SCBPort); /* flush posted write */ - /* - * The chip requires a 10 microsecond quiet period. Wait here! - */ - udelay(10); - - free_irq(dev->irq, dev); - speedo_show_state(dev); - - /* Free all the skbuffs in the Rx and Tx queues. */ - for (i = 0; i < RX_RING_SIZE; i++) { - struct sk_buff *skb = sp->rx_skbuff[i]; - sp->rx_skbuff[i] = NULL; - /* Clear the Rx descriptors. */ - if (skb) { - pci_unmap_single(sp->pdev, - sp->rx_ring_dma[i], - PKT_BUF_SZ + sizeof(struct RxFD), PCI_DMA_FROMDEVICE); - dev_kfree_skb(skb); - } - } - - for (i = 0; i < TX_RING_SIZE; i++) { - struct sk_buff *skb = sp->tx_skbuff[i]; - sp->tx_skbuff[i] = NULL; - /* Clear the Tx descriptors. */ - if (skb) { - pci_unmap_single(sp->pdev, - le32_to_cpu(sp->tx_ring[i].tx_buf_addr0), - skb->len, PCI_DMA_TODEVICE); - dev_kfree_skb(skb); - } - } - - /* Free multicast setting blocks. */ - for (i = 0; sp->mc_setup_head != NULL; i++) { - struct speedo_mc_block *t; - t = sp->mc_setup_head->next; - kfree(sp->mc_setup_head); - sp->mc_setup_head = t; - } - sp->mc_setup_tail = NULL; - if (netif_msg_ifdown(sp)) - printk(KERN_DEBUG "%s: %d multicast blocks dropped.\n", dev->name, i); - - pci_set_power_state(sp->pdev, PCI_D2); - - return 0; -} - -/* The Speedo-3 has an especially awkward and unusable method of getting - statistics out of the chip. It takes an unpredictable length of time - for the dump-stats command to complete. To avoid a busy-wait loop we - update the stats with the previous dump results, and then trigger a - new dump. - - Oh, and incoming frames are dropped while executing dump-stats! - */ -static struct net_device_stats * -speedo_get_stats(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->regs; - - /* Update only if the previous dump finished. */ - if (sp->lstats->done_marker == cpu_to_le32(0xA007)) { - sp->stats.tx_aborted_errors += le32_to_cpu(sp->lstats->tx_coll16_errs); - sp->stats.tx_window_errors += le32_to_cpu(sp->lstats->tx_late_colls); - sp->stats.tx_fifo_errors += le32_to_cpu(sp->lstats->tx_underruns); - sp->stats.tx_fifo_errors += le32_to_cpu(sp->lstats->tx_lost_carrier); - /*sp->stats.tx_deferred += le32_to_cpu(sp->lstats->tx_deferred);*/ - sp->stats.collisions += le32_to_cpu(sp->lstats->tx_total_colls); - sp->stats.rx_crc_errors += le32_to_cpu(sp->lstats->rx_crc_errs); - sp->stats.rx_frame_errors += le32_to_cpu(sp->lstats->rx_align_errs); - sp->stats.rx_over_errors += le32_to_cpu(sp->lstats->rx_resource_errs); - sp->stats.rx_fifo_errors += le32_to_cpu(sp->lstats->rx_overrun_errs); - sp->stats.rx_length_errors += le32_to_cpu(sp->lstats->rx_runt_errs); - sp->lstats->done_marker = 0x0000; - if (netif_running(dev)) { - unsigned long flags; - /* Take a spinlock to make wait_for_cmd_done and sending the - command atomic. --SAW */ - spin_lock_irqsave(&sp->lock, flags); - wait_for_cmd_done(dev, sp); - iowrite8(CUDumpStats, ioaddr + SCBCmd); - spin_unlock_irqrestore(&sp->lock, flags); - } - } - return &sp->stats; -} - -static void speedo_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) -{ - struct speedo_private *sp = netdev_priv(dev); - strncpy(info->driver, "eepro100", sizeof(info->driver)-1); - strncpy(info->version, version, sizeof(info->version)-1); - if (sp->pdev) - strcpy(info->bus_info, pci_name(sp->pdev)); -} - -static int speedo_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) -{ - struct speedo_private *sp = netdev_priv(dev); - spin_lock_irq(&sp->lock); - mii_ethtool_gset(&sp->mii_if, ecmd); - spin_unlock_irq(&sp->lock); - return 0; -} - -static int speedo_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) -{ - struct speedo_private *sp = netdev_priv(dev); - int res; - spin_lock_irq(&sp->lock); - res = mii_ethtool_sset(&sp->mii_if, ecmd); - spin_unlock_irq(&sp->lock); - return res; -} - -static int speedo_nway_reset(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - return mii_nway_restart(&sp->mii_if); -} - -static u32 speedo_get_link(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - return mii_link_ok(&sp->mii_if); -} - -static u32 speedo_get_msglevel(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - return sp->msg_enable; -} - -static void speedo_set_msglevel(struct net_device *dev, u32 v) -{ - struct speedo_private *sp = netdev_priv(dev); - sp->msg_enable = v; -} - -static const struct ethtool_ops ethtool_ops = { - .get_drvinfo = speedo_get_drvinfo, - .get_settings = speedo_get_settings, - .set_settings = speedo_set_settings, - .nway_reset = speedo_nway_reset, - .get_link = speedo_get_link, - .get_msglevel = speedo_get_msglevel, - .set_msglevel = speedo_set_msglevel, -}; - -static int speedo_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) -{ - struct speedo_private *sp = netdev_priv(dev); - struct mii_ioctl_data *data = if_mii(rq); - int phy = sp->phy[0] & 0x1f; - int saved_acpi; - int t; - - switch(cmd) { - case SIOCGMIIPHY: /* Get address of MII PHY in use. */ - data->phy_id = phy; - - case SIOCGMIIREG: /* Read MII PHY register. */ - /* FIXME: these operations need to be serialized with MDIO - access from the timeout handler. - They are currently serialized only with MDIO access from the - timer routine. 2000/05/09 SAW */ - saved_acpi = pci_set_power_state(sp->pdev, PCI_D0); - t = del_timer_sync(&sp->timer); - data->val_out = mdio_read(dev, data->phy_id & 0x1f, data->reg_num & 0x1f); - if (t) - add_timer(&sp->timer); /* may be set to the past --SAW */ - pci_set_power_state(sp->pdev, saved_acpi); - return 0; - - case SIOCSMIIREG: /* Write MII PHY register. */ - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - saved_acpi = pci_set_power_state(sp->pdev, PCI_D0); - t = del_timer_sync(&sp->timer); - mdio_write(dev, data->phy_id, data->reg_num, data->val_in); - if (t) - add_timer(&sp->timer); /* may be set to the past --SAW */ - pci_set_power_state(sp->pdev, saved_acpi); - return 0; - default: - return -EOPNOTSUPP; - } -} - -/* Set or clear the multicast filter for this adaptor. - This is very ugly with Intel chips -- we usually have to execute an - entire configuration command, plus process a multicast command. - This is complicated. We must put a large configuration command and - an arbitrarily-sized multicast command in the transmit list. - To minimize the disruption -- the previous command might have already - loaded the link -- we convert the current command block, normally a Tx - command, into a no-op and link it to the new command. -*/ -static void set_rx_mode(struct net_device *dev) -{ - struct speedo_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->regs; - struct descriptor *last_cmd; - char new_rx_mode; - unsigned long flags; - int entry, i; - - if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */ - new_rx_mode = 3; - } else if ((dev->flags & IFF_ALLMULTI) || - dev->mc_count > multicast_filter_limit) { - new_rx_mode = 1; - } else - new_rx_mode = 0; - - if (netif_msg_rx_status(sp)) - printk(KERN_DEBUG "%s: set_rx_mode %d -> %d\n", dev->name, - sp->rx_mode, new_rx_mode); - - if ((int)(sp->cur_tx - sp->dirty_tx) > TX_RING_SIZE - TX_MULTICAST_SIZE) { - /* The Tx ring is full -- don't add anything! Hope the mode will be - * set again later. */ - sp->rx_mode = -1; - return; - } - - if (new_rx_mode != sp->rx_mode) { - u8 *config_cmd_data; - - spin_lock_irqsave(&sp->lock, flags); - entry = sp->cur_tx++ % TX_RING_SIZE; - last_cmd = sp->last_cmd; - sp->last_cmd = (struct descriptor *)&sp->tx_ring[entry]; - - sp->tx_skbuff[entry] = NULL; /* Redundant. */ - sp->tx_ring[entry].status = cpu_to_le32(CmdSuspend | CmdConfigure); - sp->tx_ring[entry].link = - cpu_to_le32(TX_RING_ELEM_DMA(sp, (entry + 1) % TX_RING_SIZE)); - config_cmd_data = (void *)&sp->tx_ring[entry].tx_desc_addr; - /* Construct a full CmdConfig frame. */ - memcpy(config_cmd_data, i82558_config_cmd, CONFIG_DATA_SIZE); - config_cmd_data[1] = (txfifo << 4) | rxfifo; - config_cmd_data[4] = rxdmacount; - config_cmd_data[5] = txdmacount + 0x80; - config_cmd_data[15] |= (new_rx_mode & 2) ? 1 : 0; - /* 0x80 doesn't disable FC 0x84 does. - Disable Flow control since we are not ACK-ing any FC interrupts - for now. --Dragan */ - config_cmd_data[19] = 0x84; - config_cmd_data[19] |= sp->mii_if.full_duplex ? 0x40 : 0; - config_cmd_data[21] = (new_rx_mode & 1) ? 0x0D : 0x05; - if (sp->phy[0] & 0x8000) { /* Use the AUI port instead. */ - config_cmd_data[15] |= 0x80; - config_cmd_data[8] = 0; - } - /* Trigger the command unit resume. */ - wait_for_cmd_done(dev, sp); - clear_suspend(last_cmd); - iowrite8(CUResume, ioaddr + SCBCmd); - if ((int)(sp->cur_tx - sp->dirty_tx) >= TX_QUEUE_LIMIT) { - netif_stop_queue(dev); - sp->tx_full = 1; - } - spin_unlock_irqrestore(&sp->lock, flags); - } - - if (new_rx_mode == 0 && dev->mc_count < 4) { - /* The simple case of 0-3 multicast list entries occurs often, and - fits within one tx_ring[] entry. */ - struct dev_mc_list *mclist; - __le16 *setup_params, *eaddrs; - - spin_lock_irqsave(&sp->lock, flags); - entry = sp->cur_tx++ % TX_RING_SIZE; - last_cmd = sp->last_cmd; - sp->last_cmd = (struct descriptor *)&sp->tx_ring[entry]; - - sp->tx_skbuff[entry] = NULL; - sp->tx_ring[entry].status = cpu_to_le32(CmdSuspend | CmdMulticastList); - sp->tx_ring[entry].link = - cpu_to_le32(TX_RING_ELEM_DMA(sp, (entry + 1) % TX_RING_SIZE)); - sp->tx_ring[entry].tx_desc_addr = 0; /* Really MC list count. */ - setup_params = (__le16 *)&sp->tx_ring[entry].tx_desc_addr; - *setup_params++ = cpu_to_le16(dev->mc_count*6); - /* Fill in the multicast addresses. */ - for (i = 0, mclist = dev->mc_list; i < dev->mc_count; - i++, mclist = mclist->next) { - eaddrs = (__le16 *)mclist->dmi_addr; - *setup_params++ = *eaddrs++; - *setup_params++ = *eaddrs++; - *setup_params++ = *eaddrs++; - } - - wait_for_cmd_done(dev, sp); - clear_suspend(last_cmd); - /* Immediately trigger the command unit resume. */ - iowrite8(CUResume, ioaddr + SCBCmd); - - if ((int)(sp->cur_tx - sp->dirty_tx) >= TX_QUEUE_LIMIT) { - netif_stop_queue(dev); - sp->tx_full = 1; - } - spin_unlock_irqrestore(&sp->lock, flags); - } else if (new_rx_mode == 0) { - struct dev_mc_list *mclist; - __le16 *setup_params, *eaddrs; - struct speedo_mc_block *mc_blk; - struct descriptor *mc_setup_frm; - int i; - - mc_blk = kmalloc(sizeof(*mc_blk) + 2 + multicast_filter_limit*6, - GFP_ATOMIC); - if (mc_blk == NULL) { - printk(KERN_ERR "%s: Failed to allocate a setup frame.\n", - dev->name); - sp->rx_mode = -1; /* We failed, try again. */ - return; - } - mc_blk->next = NULL; - mc_blk->len = 2 + multicast_filter_limit*6; - mc_blk->frame_dma = - pci_map_single(sp->pdev, &mc_blk->frame, mc_blk->len, - PCI_DMA_TODEVICE); - mc_setup_frm = &mc_blk->frame; - - /* Fill the setup frame. */ - if (netif_msg_ifup(sp)) - printk(KERN_DEBUG "%s: Constructing a setup frame at %p.\n", - dev->name, mc_setup_frm); - mc_setup_frm->cmd_status = - cpu_to_le32(CmdSuspend | CmdIntr | CmdMulticastList); - /* Link set below. */ - setup_params = (__le16 *)&mc_setup_frm->params; - *setup_params++ = cpu_to_le16(dev->mc_count*6); - /* Fill in the multicast addresses. */ - for (i = 0, mclist = dev->mc_list; i < dev->mc_count; - i++, mclist = mclist->next) { - eaddrs = (__le16 *)mclist->dmi_addr; - *setup_params++ = *eaddrs++; - *setup_params++ = *eaddrs++; - *setup_params++ = *eaddrs++; - } - - /* Disable interrupts while playing with the Tx Cmd list. */ - spin_lock_irqsave(&sp->lock, flags); - - if (sp->mc_setup_tail) - sp->mc_setup_tail->next = mc_blk; - else - sp->mc_setup_head = mc_blk; - sp->mc_setup_tail = mc_blk; - mc_blk->tx = sp->cur_tx; - - entry = sp->cur_tx++ % TX_RING_SIZE; - last_cmd = sp->last_cmd; - sp->last_cmd = mc_setup_frm; - - /* Change the command to a NoOp, pointing to the CmdMulti command. */ - sp->tx_skbuff[entry] = NULL; - sp->tx_ring[entry].status = cpu_to_le32(CmdNOp); - sp->tx_ring[entry].link = cpu_to_le32(mc_blk->frame_dma); - - /* Set the link in the setup frame. */ - mc_setup_frm->link = - cpu_to_le32(TX_RING_ELEM_DMA(sp, (entry + 1) % TX_RING_SIZE)); - - pci_dma_sync_single_for_device(sp->pdev, mc_blk->frame_dma, - mc_blk->len, PCI_DMA_TODEVICE); - - wait_for_cmd_done(dev, sp); - clear_suspend(last_cmd); - /* Immediately trigger the command unit resume. */ - iowrite8(CUResume, ioaddr + SCBCmd); - - if ((int)(sp->cur_tx - sp->dirty_tx) >= TX_QUEUE_LIMIT) { - netif_stop_queue(dev); - sp->tx_full = 1; - } - spin_unlock_irqrestore(&sp->lock, flags); - - if (netif_msg_rx_status(sp)) - printk(" CmdMCSetup frame length %d in entry %d.\n", - dev->mc_count, entry); - } - - sp->rx_mode = new_rx_mode; -} - -#ifdef CONFIG_PM -static int eepro100_suspend(struct pci_dev *pdev, pm_message_t state) -{ - struct net_device *dev = pci_get_drvdata (pdev); - struct speedo_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->regs; - - pci_save_state(pdev); - - if (!netif_running(dev)) - return 0; - - del_timer_sync(&sp->timer); - - netif_device_detach(dev); - iowrite32(PortPartialReset, ioaddr + SCBPort); - - /* XXX call pci_set_power_state ()? */ - pci_disable_device(pdev); - pci_set_power_state (pdev, PCI_D3hot); - return 0; -} - -static int eepro100_resume(struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata (pdev); - struct speedo_private *sp = netdev_priv(dev); - void __iomem *ioaddr = sp->regs; - int rc; - - pci_set_power_state(pdev, PCI_D0); - pci_restore_state(pdev); - - rc = pci_enable_device(pdev); - if (rc) - return rc; - - pci_set_master(pdev); - - if (!netif_running(dev)) - return 0; - - /* I'm absolutely uncertain if this part of code may work. - The problems are: - - correct hardware reinitialization; - - correct driver behavior between different steps of the - reinitialization; - - serialization with other driver calls. - 2000/03/08 SAW */ - iowrite16(SCBMaskAll, ioaddr + SCBCmd); - speedo_resume(dev); - netif_device_attach(dev); - sp->rx_mode = -1; - sp->flow_ctrl = sp->partner = 0; - set_rx_mode(dev); - sp->timer.expires = RUN_AT(2*HZ); - add_timer(&sp->timer); - return 0; -} -#endif /* CONFIG_PM */ - -static void __devexit eepro100_remove_one (struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata (pdev); - struct speedo_private *sp = netdev_priv(dev); - - unregister_netdev(dev); - - release_region(pci_resource_start(pdev, 1), pci_resource_len(pdev, 1)); - release_mem_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0)); - - pci_iounmap(pdev, sp->regs); - pci_free_consistent(pdev, TX_RING_SIZE * sizeof(struct TxFD) - + sizeof(struct speedo_stats), - sp->tx_ring, sp->tx_ring_dma); - pci_disable_device(pdev); - free_netdev(dev); -} - -static struct pci_device_id eepro100_pci_tbl[] = { - { PCI_VENDOR_ID_INTEL, 0x1229, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1209, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1029, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1030, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1031, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1032, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1033, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1034, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1035, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1036, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1037, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1038, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1039, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x103A, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x103B, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x103C, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x103D, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x103E, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1050, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1059, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x1227, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x2449, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x2459, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x245D, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x5200, PCI_ANY_ID, PCI_ANY_ID, }, - { PCI_VENDOR_ID_INTEL, 0x5201, PCI_ANY_ID, PCI_ANY_ID, }, - { 0,} -}; -MODULE_DEVICE_TABLE(pci, eepro100_pci_tbl); - -static struct pci_driver eepro100_driver = { - .name = "eepro100", - .id_table = eepro100_pci_tbl, - .probe = eepro100_init_one, - .remove = __devexit_p(eepro100_remove_one), -#ifdef CONFIG_PM - .suspend = eepro100_suspend, - .resume = eepro100_resume, -#endif /* CONFIG_PM */ -}; - -static int __init eepro100_init_module(void) -{ -#ifdef MODULE - printk(version); -#endif - return pci_register_driver(&eepro100_driver); -} - -static void __exit eepro100_cleanup_module(void) -{ - pci_unregister_driver(&eepro100_driver); -} - -module_init(eepro100_init_module); -module_exit(eepro100_cleanup_module); - -/* - * Local variables: - * compile-command: "gcc -DMODULE -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -c eepro100.c `[ -f /usr/include/linux/modversions.h ] && echo -DMODVERSIONS`" - * c-indent-level: 4 - * c-basic-offset: 4 - * tab-width: 4 - * End: - */ |