diff options
Diffstat (limited to 'drivers/net/eepro100.c')
| -rw-r--r-- | drivers/net/eepro100.c | 2412 |
1 files changed, 2412 insertions, 0 deletions
diff --git a/drivers/net/eepro100.c b/drivers/net/eepro100.c new file mode 100644 index 000000000000..98b3a2fdce90 --- /dev/null +++ b/drivers/net/eepro100.c @@ -0,0 +1,2412 @@ +/* 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 *version = +"eepro100.c:v1.09j-t 9/29/99 Donald Becker http://www.scyld.com/network/eepro100.html\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/config.h> +#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); + +enum pci_flags_bit { + PCI_USES_IO=1, PCI_USES_MEM=2, PCI_USES_MASTER=4, + PCI_ADDR0=0x10<<0, PCI_ADDR1=0x10<<1, PCI_ADDR2=0x10<<2, PCI_ADDR3=0x10<<3, +}; + +/* 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 +# if defined(__LITTLE_ENDIAN) +# define clear_suspend(cmd) ((__u16 *)&(cmd)->cmd_status)[1] &= ~0x4000 +# elif defined(__BIG_ENDIAN) +# define clear_suspend(cmd) ((__u16 *)&(cmd)->cmd_status)[1] &= ~0x0040 +# else +# error Unsupported byteorder +# endif +#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 s32 cmd_status; /* All command and status fields. */ + u32 link; /* struct descriptor * */ + unsigned char params[0]; +}; + +/* The Speedo3 Rx and Tx buffer descriptors. */ +struct RxFD { /* Receive frame descriptor. */ + volatile s32 status; + u32 link; /* struct RxFD * */ + u32 rx_buf_addr; /* void * */ + u32 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. */ + s32 status; + u32 link; /* void * */ + u32 tx_desc_addr; /* Always points to the tx_buf_addr element. */ + s32 count; /* # of TBD (=1), Tx start thresh., etc. */ + /* This constitutes two "TBD" entries -- we only use one. */ +#define TX_DESCR_BUF_OFFSET 16 + u32 tx_buf_addr0; /* void *, frame to be transmitted. */ + s32 tx_buf_size0; /* Length of Tx frame. */ + u32 tx_buf_addr1; /* void *, frame to be transmitted. */ + s32 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 { + u32 tx_good_frames; + u32 tx_coll16_errs; + u32 tx_late_colls; + u32 tx_underruns; + u32 tx_lost_carrier; + u32 tx_deferred; + u32 tx_one_colls; + u32 tx_multi_colls; + u32 tx_total_colls; + u32 rx_good_frames; + u32 rx_crc_errs; + u32 rx_align_errs; + u32 rx_resource_errs; + u32 rx_overrun_errs; + u32 rx_colls_errs; + u32 rx_runt_errs; + u32 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 *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, struct pt_regs *regs); +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 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")) { + printk (KERN_ERR "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")) { + printk (KERN_ERR "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) { + printk (KERN_ERR "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, NULL); + 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; + + 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_MODULE_OWNER(dev); + 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, ", dev->name, product); + + for (i = 0; i < 5; i++) + printk("%2.2X:", dev->dev_addr[i]); + printk("%2.2X, ", dev->dev_addr[i]); + printk("IRQ %d.\n", 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, SA_SHIRQ, 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 = 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)); + /* XXX: do we really want to call this before the NULL check? --hch */ + 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->tail; + 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 = 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 pt_regs *regs) +{ + 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)); + /* XXX: do we really want to call this before the NULL check? --hch */ + 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->tail; + 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 = 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)) != 0) { + skb->dev = dev; + 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. */ + eth_copy_and_sum(skb, sp->rx_skbuff[entry]->tail, pkt_len, 0); + skb_put(skb, pkt_len); +#else + memcpy(skb_put(skb, pkt_len), sp->rx_skbuff[entry]->tail, + 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 == le32_to_cpu(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 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; + u16 *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 = (u16 *)&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 = (u16 *)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; + u16 *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 = (u16 *)&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 = (u16 *)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; + + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + pci_enable_device(pdev); + 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_module_init(&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: + */ |