+++ /dev/null
-/*
-
- 8139too.c: A RealTek RTL-8139 Fast Ethernet driver for Linux.
-
- Maintained by Jeff Garzik <jgarzik@pobox.com>
- Copyright 2000-2002 Jeff Garzik
-
- Much code comes from Donald Becker's rtl8139.c driver,
- versions 1.13 and older. This driver was originally based
- on rtl8139.c version 1.07. Header of rtl8139.c version 1.13:
-
- -----<snip>-----
-
- Written 1997-2001 by Donald Becker.
- This software may be used and distributed according to the
- terms of the GNU General Public License (GPL), incorporated
- herein by reference. Drivers based on or derived from this
- code fall under the GPL and must retain the authorship,
- copyright and license notice. This file is not a complete
- program and may only be used when the entire operating
- system is licensed under the GPL.
-
- This driver is for boards based on the RTL8129 and RTL8139
- PCI ethernet chips.
-
- The author may be reached as becker@scyld.com, or C/O Scyld
- Computing Corporation 410 Severn Ave., Suite 210 Annapolis
- MD 21403
-
- Support and updates available at
- http://www.scyld.com/network/rtl8139.html
-
- Twister-tuning table provided by Kinston
- <shangh@realtek.com.tw>.
-
- -----<snip>-----
-
- This software may be used and distributed according to the terms
- of the GNU General Public License, incorporated herein by reference.
-
- Contributors:
-
- Donald Becker - he wrote the original driver, kudos to him!
- (but please don't e-mail him for support, this isn't his driver)
-
- Tigran Aivazian - bug fixes, skbuff free cleanup
-
- Martin Mares - suggestions for PCI cleanup
-
- David S. Miller - PCI DMA and softnet updates
-
- Ernst Gill - fixes ported from BSD driver
-
- Daniel Kobras - identified specific locations of
- posted MMIO write bugginess
-
- Gerard Sharp - bug fix, testing and feedback
-
- David Ford - Rx ring wrap fix
-
- Dan DeMaggio - swapped RTL8139 cards with me, and allowed me
- to find and fix a crucial bug on older chipsets.
-
- Donald Becker/Chris Butterworth/Marcus Westergren -
- Noticed various Rx packet size-related buglets.
-
- Santiago Garcia Mantinan - testing and feedback
-
- Jens David - 2.2.x kernel backports
-
- Martin Dennett - incredibly helpful insight on undocumented
- features of the 8139 chips
-
- Jean-Jacques Michel - bug fix
-
- Tobias Ringström - Rx interrupt status checking suggestion
-
- Andrew Morton - Clear blocked signals, avoid
- buffer overrun setting current->comm.
-
- Kalle Olavi Niemitalo - Wake-on-LAN ioctls
-
- Robert Kuebel - Save kernel thread from dying on any signal.
-
- Submitting bug reports:
-
- "rtl8139-diag -mmmaaavvveefN" output
- enable RTL8139_DEBUG below, and look at 'dmesg' or kernel log
-
- See 8139too.txt for more details.
-
-*/
-
-#define DRV_NAME "8139too"
-#define DRV_VERSION "0.9.26"
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/lib.h>
-#include <linux/timer.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/delay.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/crc32.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-/* This must be global for CONFIG_8139TOO_TUNE_TWISTER case */
-static int next_tick = 3 * HZ;
-
-#define RTL8139_DRIVER_NAME DRV_NAME " Fast Ethernet driver " DRV_VERSION
-#define PFX DRV_NAME ": "
-
-
-/* enable PIO instead of MMIO, if CONFIG_8139TOO_PIO is selected */
-#ifdef CONFIG_8139TOO_PIO
-#define USE_IO_OPS 1
-#endif
-
-/* define to 1 to enable copious debugging info */
-#undef RTL8139_DEBUG
-
-/* define to 1 to disable lightweight runtime debugging checks */
-#undef RTL8139_NDEBUG
-
-
-#ifdef RTL8139_DEBUG
-/* note: prints function name for you */
-# define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
-#else
-# define DPRINTK(fmt, args...)
-#endif
-
-#ifdef RTL8139_NDEBUG
-# define assert(expr) do {} while (0)
-#else
-# define assert(expr) \
- if(!(expr)) { \
- printk( "Assertion failed! %s,%s,%s,line=%d\n", \
- #expr,__FILE__,__FUNCTION__,__LINE__); \
- }
-#endif
-
-
-/* A few user-configurable values. */
-/* media options */
-#define MAX_UNITS 8
-static int media[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-
-/* 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).
- The RTL chips use a 64 element hash table based on the Ethernet CRC. */
-static int multicast_filter_limit = 32;
-
-#if 0
-/* bitmapped message enable number */
-static int debug = -1;
-#endif
-
-/* Size of the in-memory receive ring. */
-#define RX_BUF_LEN_IDX 2 /* 0==8K, 1==16K, 2==32K, 3==64K */
-#define RX_BUF_LEN (8192 << RX_BUF_LEN_IDX)
-#define RX_BUF_PAD 16
-#define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */
-#define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD)
-
-/* Number of Tx descriptor registers. */
-#define NUM_TX_DESC 4
-
-/* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/
-#define MAX_ETH_FRAME_SIZE 1536
-
-/* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */
-#define TX_BUF_SIZE MAX_ETH_FRAME_SIZE
-#define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC)
-
-/* PCI Tuning Parameters
- Threshold is bytes transferred to chip before transmission starts. */
-#define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */
-
-/* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
-#define RX_FIFO_THRESH 7 /* Rx buffer level before first PCI xfer. */
-#define RX_DMA_BURST 7 /* Maximum PCI burst, '6' is 1024 */
-#define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
-#define TX_RETRY 8 /* 0-15. retries = 16 + (TX_RETRY * 16) */
-
-/* Operational parameters that usually are not changed. */
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT (6*HZ)
-
-
-enum {
- HAS_MII_XCVR = 0x010000,
- HAS_CHIP_XCVR = 0x020000,
- HAS_LNK_CHNG = 0x040000,
-};
-
-#define RTL_NUM_STATS 4 /* number of ETHTOOL_GSTATS u64's */
-#define RTL_REGS_VER 1 /* version of reg. data in ETHTOOL_GREGS */
-#define RTL_MIN_IO_SIZE 0x80
-#define RTL8139B_IO_SIZE 256
-
-#define RTL8129_CAPS HAS_MII_XCVR
-#define RTL8139_CAPS HAS_CHIP_XCVR|HAS_LNK_CHNG
-
-typedef enum {
- RTL8139 = 0,
- RTL8139_CB,
- SMC1211TX,
- /*MPX5030,*/
- DELTA8139,
- ADDTRON8139,
- DFE538TX,
- DFE690TXD,
- FE2000VX,
- ALLIED8139,
- RTL8129,
- FNW3603TX,
- FNW3800TX,
-} board_t;
-
-
-/* indexed by board_t, above */
-static struct {
- const char *name;
- u32 hw_flags;
-} board_info[] __devinitdata = {
- { "RealTek RTL8139 Fast Ethernet", RTL8139_CAPS },
- { "RealTek RTL8139B PCI/CardBus", RTL8139_CAPS },
- { "SMC1211TX EZCard 10/100 (RealTek RTL8139)", RTL8139_CAPS },
-/* { MPX5030, "Accton MPX5030 (RealTek RTL8139)", RTL8139_CAPS },*/
- { "Delta Electronics 8139 10/100BaseTX", RTL8139_CAPS },
- { "Addtron Technolgy 8139 10/100BaseTX", RTL8139_CAPS },
- { "D-Link DFE-538TX (RealTek RTL8139)", RTL8139_CAPS },
- { "D-Link DFE-690TXD (RealTek RTL8139)", RTL8139_CAPS },
- { "AboCom FE2000VX (RealTek RTL8139)", RTL8139_CAPS },
- { "Allied Telesyn 8139 CardBus", RTL8139_CAPS },
- { "RealTek RTL8129", RTL8129_CAPS },
- { "Planex FNW-3603-TX 10/100 CardBus", RTL8139_CAPS },
- { "Planex FNW-3800-TX 10/100 CardBus", RTL8139_CAPS },
-};
-
-
-static struct pci_device_id rtl8139_pci_tbl[] __devinitdata = {
- {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
- {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139_CB },
- {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, SMC1211TX },
-/* {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MPX5030 },*/
- {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DELTA8139 },
- {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ADDTRON8139 },
- {0x1186, 0x1300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DFE538TX },
- {0x1186, 0x1340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DFE690TXD },
- {0x13d1, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, FE2000VX },
- {0x1259, 0xa117, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ALLIED8139 },
- {0x14ea, 0xab06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, FNW3603TX },
- {0x14ea, 0xab07, PCI_ANY_ID, PCI_ANY_ID, 0, 0, FNW3800TX },
-
-#ifdef CONFIG_8139TOO_8129
- {0x10ec, 0x8129, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8129 },
-#endif
-
- /* some crazy cards report invalid vendor ids like
- * 0x0001 here. The other ids are valid and constant,
- * so we simply don't match on the main vendor id.
- */
- {PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 },
- {PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, DFE538TX },
- {PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, FE2000VX },
-
- {0,}
-};
-MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl);
-
-#if 0
-static struct {
- const char str[ETH_GSTRING_LEN];
-} ethtool_stats_keys[] = {
- { "early_rx" },
- { "tx_buf_mapped" },
- { "tx_timeouts" },
- { "rx_lost_in_ring" },
-};
-#endif
-
-/* The rest of these values should never change. */
-
-/* Symbolic offsets to registers. */
-enum RTL8139_registers {
- MAC0 = 0, /* Ethernet hardware address. */
- MAR0 = 8, /* Multicast filter. */
- TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */
- TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */
- RxBuf = 0x30,
- ChipCmd = 0x37,
- RxBufPtr = 0x38,
- RxBufAddr = 0x3A,
- IntrMask = 0x3C,
- IntrStatus = 0x3E,
- TxConfig = 0x40,
- ChipVersion = 0x43,
- RxConfig = 0x44,
- Timer = 0x48, /* A general-purpose counter. */
- RxMissed = 0x4C, /* 24 bits valid, write clears. */
- Cfg9346 = 0x50,
- Config0 = 0x51,
- Config1 = 0x52,
- FlashReg = 0x54,
- MediaStatus = 0x58,
- Config3 = 0x59,
- Config4 = 0x5A, /* absent on RTL-8139A */
- HltClk = 0x5B,
- MultiIntr = 0x5C,
- TxSummary = 0x60,
- BasicModeCtrl = 0x62,
- BasicModeStatus = 0x64,
- NWayAdvert = 0x66,
- NWayLPAR = 0x68,
- NWayExpansion = 0x6A,
- /* Undocumented registers, but required for proper operation. */
- FIFOTMS = 0x70, /* FIFO Control and test. */
- CSCR = 0x74, /* Chip Status and Configuration Register. */
- PARA78 = 0x78,
- PARA7c = 0x7c, /* Magic transceiver parameter register. */
- Config5 = 0xD8, /* absent on RTL-8139A */
-};
-
-enum ClearBitMasks {
- MultiIntrClear = 0xF000,
- ChipCmdClear = 0xE2,
- Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1),
-};
-
-enum ChipCmdBits {
- CmdReset = 0x10,
- CmdRxEnb = 0x08,
- CmdTxEnb = 0x04,
- RxBufEmpty = 0x01,
-};
-
-/* Interrupt register bits, using my own meaningful names. */
-enum IntrStatusBits {
- PCIErr = 0x8000,
- PCSTimeout = 0x4000,
- RxFIFOOver = 0x40,
- RxUnderrun = 0x20,
- RxOverflow = 0x10,
- TxErr = 0x08,
- TxOK = 0x04,
- RxErr = 0x02,
- RxOK = 0x01,
-
- RxAckBits = RxFIFOOver | RxOverflow | RxOK,
-};
-
-enum TxStatusBits {
- TxHostOwns = 0x2000,
- TxUnderrun = 0x4000,
- TxStatOK = 0x8000,
- TxOutOfWindow = 0x20000000,
- TxAborted = 0x40000000,
- TxCarrierLost = 0x80000000,
-};
-enum RxStatusBits {
- RxMulticast = 0x8000,
- RxPhysical = 0x4000,
- RxBroadcast = 0x2000,
- RxBadSymbol = 0x0020,
- RxRunt = 0x0010,
- RxTooLong = 0x0008,
- RxCRCErr = 0x0004,
- RxBadAlign = 0x0002,
- RxStatusOK = 0x0001,
-};
-
-/* Bits in RxConfig. */
-enum rx_mode_bits {
- AcceptErr = 0x20,
- AcceptRunt = 0x10,
- AcceptBroadcast = 0x08,
- AcceptMulticast = 0x04,
- AcceptMyPhys = 0x02,
- AcceptAllPhys = 0x01,
-};
-
-/* Bits in TxConfig. */
-enum tx_config_bits {
- TxIFG1 = (1 << 25), /* Interframe Gap Time */
- TxIFG0 = (1 << 24), /* Enabling these bits violates IEEE 802.3 */
- TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */
- TxCRC = (1 << 16), /* DISABLE appending CRC to end of Tx packets */
- TxClearAbt = (1 << 0), /* Clear abort (WO) */
- TxDMAShift = 8, /* DMA burst value (0-7) is shifted this many bits */
- TxRetryShift = 4, /* TXRR value (0-15) is shifted this many bits */
-
- TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */
-};
-
-/* Bits in Config1 */
-enum Config1Bits {
- Cfg1_PM_Enable = 0x01,
- Cfg1_VPD_Enable = 0x02,
- Cfg1_PIO = 0x04,
- Cfg1_MMIO = 0x08,
- LWAKE = 0x10, /* not on 8139, 8139A */
- Cfg1_Driver_Load = 0x20,
- Cfg1_LED0 = 0x40,
- Cfg1_LED1 = 0x80,
- SLEEP = (1 << 1), /* only on 8139, 8139A */
- PWRDN = (1 << 0), /* only on 8139, 8139A */
-};
-
-/* Bits in Config3 */
-enum Config3Bits {
- Cfg3_FBtBEn = (1 << 0), /* 1 = Fast Back to Back */
- Cfg3_FuncRegEn = (1 << 1), /* 1 = enable CardBus Function registers */
- Cfg3_CLKRUN_En = (1 << 2), /* 1 = enable CLKRUN */
- Cfg3_CardB_En = (1 << 3), /* 1 = enable CardBus registers */
- Cfg3_LinkUp = (1 << 4), /* 1 = wake up on link up */
- Cfg3_Magic = (1 << 5), /* 1 = wake up on Magic Packet (tm) */
- Cfg3_PARM_En = (1 << 6), /* 0 = software can set twister parameters */
- Cfg3_GNTSel = (1 << 7), /* 1 = delay 1 clock from PCI GNT signal */
-};
-
-/* Bits in Config4 */
-enum Config4Bits {
- LWPTN = (1 << 2), /* not on 8139, 8139A */
-};
-
-/* Bits in Config5 */
-enum Config5Bits {
- Cfg5_PME_STS = (1 << 0), /* 1 = PCI reset resets PME_Status */
- Cfg5_LANWake = (1 << 1), /* 1 = enable LANWake signal */
- Cfg5_LDPS = (1 << 2), /* 0 = save power when link is down */
- Cfg5_FIFOAddrPtr = (1 << 3), /* Realtek internal SRAM testing */
- Cfg5_UWF = (1 << 4), /* 1 = accept unicast wakeup frame */
- Cfg5_MWF = (1 << 5), /* 1 = accept multicast wakeup frame */
- Cfg5_BWF = (1 << 6), /* 1 = accept broadcast wakeup frame */
-};
-
-enum RxConfigBits {
- /* rx fifo threshold */
- RxCfgFIFOShift = 13,
- RxCfgFIFONone = (7 << RxCfgFIFOShift),
-
- /* Max DMA burst */
- RxCfgDMAShift = 8,
- RxCfgDMAUnlimited = (7 << RxCfgDMAShift),
-
- /* rx ring buffer length */
- RxCfgRcv8K = 0,
- RxCfgRcv16K = (1 << 11),
- RxCfgRcv32K = (1 << 12),
- RxCfgRcv64K = (1 << 11) | (1 << 12),
-
- /* Disable packet wrap at end of Rx buffer */
- RxNoWrap = (1 << 7),
-};
-
-
-/* Twister tuning parameters from RealTek.
- Completely undocumented, but required to tune bad links on some boards. */
-enum CSCRBits {
- CSCR_LinkOKBit = 0x0400,
- CSCR_LinkChangeBit = 0x0800,
- CSCR_LinkStatusBits = 0x0f000,
- CSCR_LinkDownOffCmd = 0x003c0,
- CSCR_LinkDownCmd = 0x0f3c0,
-};
-
-
-enum Cfg9346Bits {
- Cfg9346_Lock = 0x00,
- Cfg9346_Unlock = 0xC0,
-};
-
-#ifdef CONFIG_8139TOO_TUNE_TWISTER
-
-enum TwisterParamVals {
- PARA78_default = 0x78fa8388,
- PARA7c_default = 0xcb38de43, /* param[0][3] */
- PARA7c_xxx = 0xcb38de43,
-};
-
-static const unsigned long param[4][4] = {
- {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43},
- {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
- {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
- {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83}
-};
-
-#endif /* CONFIG_8139TOO_TUNE_TWISTER */
-
-typedef enum {
- CH_8139 = 0,
- CH_8139_K,
- CH_8139A,
- CH_8139B,
- CH_8130,
- CH_8139C,
-} chip_t;
-
-enum chip_flags {
- HasHltClk = (1 << 0),
- HasLWake = (1 << 1),
-};
-
-
-/* directly indexed by chip_t, above */
-const static struct {
- const char *name;
- u8 version; /* from RTL8139C docs */
- u32 RxConfigMask; /* should clear the bits supported by this chip */
- u32 flags;
-} rtl_chip_info[] = {
- { "RTL-8139",
- 0x40,
- 0xf0fe0040, /* XXX copied from RTL8139A, verify */
- HasHltClk,
- },
-
- { "RTL-8139 rev K",
- 0x60,
- 0xf0fe0040,
- HasHltClk,
- },
-
- { "RTL-8139A",
- 0x70,
- 0xf0fe0040,
- HasHltClk, /* XXX undocumented? */
- },
-
- { "RTL-8139B",
- 0x78,
- 0xf0fc0040,
- HasLWake,
- },
-
- { "RTL-8130",
- 0x7C,
- 0xf0fe0040, /* XXX copied from RTL8139A, verify */
- HasLWake,
- },
-
- { "RTL-8139C",
- 0x74,
- 0xf0fc0040, /* XXX copied from RTL8139B, verify */
- HasLWake,
- },
-
-};
-
-struct rtl_extra_stats {
- unsigned long early_rx;
- unsigned long tx_buf_mapped;
- unsigned long tx_timeouts;
- unsigned long rx_lost_in_ring;
-};
-
-struct rtl8139_private {
- void *mmio_addr;
- int drv_flags;
- struct pci_dev *pci_dev;
- struct net_device_stats stats;
- unsigned char *rx_ring;
- unsigned int cur_rx; /* Index into the Rx buffer of next Rx pkt. */
- unsigned int tx_flag;
- unsigned long cur_tx;
- unsigned long dirty_tx;
- unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */
- unsigned char *tx_bufs; /* Tx bounce buffer region. */
- dma_addr_t rx_ring_dma;
- dma_addr_t tx_bufs_dma;
- signed char phys[4]; /* MII device addresses. */
- char twistie, twist_row, twist_col; /* Twister tune state. */
- unsigned int default_port:4; /* Last dev->if_port value. */
- spinlock_t lock;
- chip_t chipset;
-#if 0
- pid_t thr_pid;
- wait_queue_head_t thr_wait;
- struct completion thr_exited;
-#else
- struct timer_list timer;
-#endif
- u32 rx_config;
- struct rtl_extra_stats xstats;
- int time_to_die;
- struct mii_if_info mii;
- unsigned int regs_len;
-};
-
-MODULE_AUTHOR ("Jeff Garzik <jgarzik@pobox.com>");
-MODULE_DESCRIPTION ("RealTek RTL-8139 Fast Ethernet driver");
-MODULE_LICENSE("GPL");
-
-MODULE_PARM (multicast_filter_limit, "i");
-MODULE_PARM (max_interrupt_work, "i");
-MODULE_PARM (media, "1-" __MODULE_STRING(MAX_UNITS) "i");
-MODULE_PARM (full_duplex, "1-" __MODULE_STRING(MAX_UNITS) "i");
-MODULE_PARM (debug, "i");
-MODULE_PARM_DESC (debug, "8139too bitmapped message enable number");
-MODULE_PARM_DESC (multicast_filter_limit, "8139too maximum number of filtered multicast addresses");
-MODULE_PARM_DESC (max_interrupt_work, "8139too maximum events handled per interrupt");
-MODULE_PARM_DESC (media, "8139too: Bits 4+9: force full duplex, bit 5: 100Mbps");
-MODULE_PARM_DESC (full_duplex, "8139too: Force full duplex for board(s) (1)");
-
-static int read_eeprom (void *ioaddr, int location, int addr_len);
-static int rtl8139_open (struct net_device *dev);
-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 val);
-#if 0
-static int rtl8139_thread (void *data);
-#else
-static void rtl8139_timer (unsigned long arg);
-#endif
-static void rtl8139_tx_timeout (struct net_device *dev);
-static void rtl8139_init_ring (struct net_device *dev);
-static int rtl8139_start_xmit (struct sk_buff *skb,
- struct net_device *dev);
-static void rtl8139_interrupt (int irq, void *dev_instance,
- struct pt_regs *regs);
-static int rtl8139_close (struct net_device *dev);
-#if 0
-static int netdev_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
-#endif
-static struct net_device_stats *rtl8139_get_stats (struct net_device *dev);
-static void rtl8139_set_rx_mode (struct net_device *dev);
-static void __set_rx_mode (struct net_device *dev);
-static void rtl8139_hw_start (struct net_device *dev);
-
-#ifdef USE_IO_OPS
-
-#define RTL_R8(reg) inb (((unsigned long)ioaddr) + (reg))
-#define RTL_R16(reg) inw (((unsigned long)ioaddr) + (reg))
-#define RTL_R32(reg) ((unsigned long) inl (((unsigned long)ioaddr) + (reg)))
-#define RTL_W8(reg, val8) outb ((val8), ((unsigned long)ioaddr) + (reg))
-#define RTL_W16(reg, val16) outw ((val16), ((unsigned long)ioaddr) + (reg))
-#define RTL_W32(reg, val32) outl ((val32), ((unsigned long)ioaddr) + (reg))
-#define RTL_W8_F RTL_W8
-#define RTL_W16_F RTL_W16
-#define RTL_W32_F RTL_W32
-#undef readb
-#undef readw
-#undef readl
-#undef writeb
-#undef writew
-#undef writel
-#define readb(addr) inb((unsigned long)(addr))
-#define readw(addr) inw((unsigned long)(addr))
-#define readl(addr) inl((unsigned long)(addr))
-#define writeb(val,addr) outb((val),(unsigned long)(addr))
-#define writew(val,addr) outw((val),(unsigned long)(addr))
-#define writel(val,addr) outl((val),(unsigned long)(addr))
-
-#else
-
-/* write MMIO register, with flush */
-/* Flush avoids rtl8139 bug w/ posted MMIO writes */
-#define RTL_W8_F(reg, val8) do { writeb ((val8), ioaddr + (reg)); readb (ioaddr + (reg)); } while (0)
-#define RTL_W16_F(reg, val16) do { writew ((val16), ioaddr + (reg)); readw (ioaddr + (reg)); } while (0)
-#define RTL_W32_F(reg, val32) do { writel ((val32), ioaddr + (reg)); readl (ioaddr + (reg)); } while (0)
-
-
-#define MMIO_FLUSH_AUDIT_COMPLETE 1
-#if MMIO_FLUSH_AUDIT_COMPLETE
-
-/* write MMIO register */
-#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
-#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
-#define RTL_W32(reg, val32) writel ((val32), ioaddr + (reg))
-
-#else
-
-/* write MMIO register, then flush */
-#define RTL_W8 RTL_W8_F
-#define RTL_W16 RTL_W16_F
-#define RTL_W32 RTL_W32_F
-
-#endif /* MMIO_FLUSH_AUDIT_COMPLETE */
-
-/* read MMIO register */
-#define RTL_R8(reg) readb (ioaddr + (reg))
-#define RTL_R16(reg) readw (ioaddr + (reg))
-#define RTL_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
-
-#endif /* USE_IO_OPS */
-
-
-static const u16 rtl8139_intr_mask =
- PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver |
- TxErr | TxOK | RxErr | RxOK;
-
-static const unsigned int rtl8139_rx_config =
- RxCfgRcv32K | RxNoWrap |
- (RX_FIFO_THRESH << RxCfgFIFOShift) |
- (RX_DMA_BURST << RxCfgDMAShift);
-
-static const unsigned int rtl8139_tx_config =
- (TX_DMA_BURST << TxDMAShift) | (TX_RETRY << TxRetryShift);
-
-static void __rtl8139_cleanup_dev (struct net_device *dev)
-{
- struct rtl8139_private *tp;
- struct pci_dev *pdev;
-
- assert (dev != NULL);
- assert (dev->priv != NULL);
-
- tp = dev->priv;
- assert (tp->pci_dev != NULL);
- pdev = tp->pci_dev;
-
-#ifndef USE_IO_OPS
- if (tp->mmio_addr)
- iounmap (tp->mmio_addr);
-#endif /* !USE_IO_OPS */
-
- /* it's ok to call this even if we have no regions to free */
- pci_release_regions (pdev);
-
-#ifndef RTL8139_NDEBUG
- /* poison memory before freeing */
- memset (dev, 0xBC,
- sizeof (struct net_device) +
- sizeof (struct rtl8139_private));
-#endif /* RTL8139_NDEBUG */
-
- kfree (dev);
-
- pci_set_drvdata (pdev, NULL);
-}
-
-
-static void rtl8139_chip_reset (void *ioaddr)
-{
- int i;
-
- /* Soft reset the chip. */
- RTL_W8 (ChipCmd, CmdReset);
-
- /* Check that the chip has finished the reset. */
- for (i = 1000; i > 0; i--) {
- barrier();
- if ((RTL_R8 (ChipCmd) & CmdReset) == 0)
- break;
- udelay (10);
- }
-}
-
-
-static int __devinit rtl8139_init_board (struct pci_dev *pdev,
- struct net_device **dev_out)
-{
- void *ioaddr;
- struct net_device *dev;
- struct rtl8139_private *tp;
- u8 tmp8;
- int rc;
- unsigned int i;
- u32 pio_start, pio_end, pio_flags, pio_len;
- unsigned long mmio_start, mmio_end, mmio_flags, mmio_len;
- u32 tmp;
-
- assert (pdev != NULL);
-
- *dev_out = NULL;
-
- /* dev and dev->priv zeroed in alloc_etherdev */
- dev = alloc_etherdev (sizeof (*tp));
- if (dev == NULL) {
- printk (KERN_ERR PFX "%s: Unable to alloc new net device\n", pdev->slot_name);
- return -ENOMEM;
- }
- SET_MODULE_OWNER(dev);
- tp = dev->priv;
- tp->pci_dev = pdev;
-
- /* enable device (incl. PCI PM wakeup and hotplug setup) */
- rc = pci_enable_device (pdev);
- if (rc)
- goto err_out;
-
- pio_start = pci_resource_start (pdev, 0);
- pio_end = pci_resource_end (pdev, 0);
- pio_flags = pci_resource_flags (pdev, 0);
- pio_len = pci_resource_len (pdev, 0);
-
- mmio_start = pci_resource_start (pdev, 1);
- mmio_end = pci_resource_end (pdev, 1);
- mmio_flags = pci_resource_flags (pdev, 1);
- mmio_len = pci_resource_len (pdev, 1);
-
- /* set this immediately, we need to know before
- * we talk to the chip directly */
- DPRINTK("PIO region size == 0x%02X\n", pio_len);
- DPRINTK("MMIO region size == 0x%02lX\n", mmio_len);
-
-#ifdef USE_IO_OPS
- /* make sure PCI base addr 0 is PIO */
- if (!(pio_flags & IORESOURCE_IO)) {
- printk (KERN_ERR PFX "%s: region #0 not a PIO resource, aborting\n", pdev->slot_name);
- rc = -ENODEV;
- goto err_out;
- }
- /* check for weird/broken PCI region reporting */
- if (pio_len < RTL_MIN_IO_SIZE) {
- printk (KERN_ERR PFX "%s: Invalid PCI I/O region size(s), aborting\n", pdev->slot_name);
- rc = -ENODEV;
- goto err_out;
- }
-#else
- /* make sure PCI base addr 1 is MMIO */
- if (!(mmio_flags & IORESOURCE_MEM)) {
- printk (KERN_ERR PFX "%s: region #1 not an MMIO resource, aborting\n", pdev->slot_name);
- rc = -ENODEV;
- goto err_out;
- }
- if (mmio_len < RTL_MIN_IO_SIZE) {
- printk (KERN_ERR PFX "%s: Invalid PCI mem region size(s), aborting\n", pdev->slot_name);
- rc = -ENODEV;
- goto err_out;
- }
-#endif
-
- rc = pci_request_regions (pdev, "8139too");
- if (rc)
- goto err_out;
-
- /* enable PCI bus-mastering */
- pci_set_master (pdev);
-
-#ifdef USE_IO_OPS
- ioaddr = (void *) pio_start;
- dev->base_addr = pio_start;
- tp->mmio_addr = ioaddr;
- tp->regs_len = pio_len;
-#else
- /* ioremap MMIO region */
- ioaddr = ioremap (mmio_start, mmio_len);
- if (ioaddr == NULL) {
- printk (KERN_ERR PFX "%s: cannot remap MMIO, aborting\n", pdev->slot_name);
- rc = -EIO;
- goto err_out;
- }
- dev->base_addr = (long) ioaddr;
- tp->mmio_addr = ioaddr;
- tp->regs_len = mmio_len;
-#endif /* USE_IO_OPS */
-
- /* Bring old chips out of low-power mode. */
- RTL_W8 (HltClk, 'R');
-
- /* check for missing/broken hardware */
- if (RTL_R32 (TxConfig) == 0xFFFFFFFF) {
- printk (KERN_ERR PFX "%s: Chip not responding, ignoring board\n",
- pdev->slot_name);
- rc = -EIO;
- goto err_out;
- }
-
- /* identify chip attached to board */
- tmp = RTL_R8 (ChipVersion);
- for (i = 0; i < ARRAY_SIZE (rtl_chip_info); i++)
- if (tmp == rtl_chip_info[i].version) {
- tp->chipset = i;
- goto match;
- }
-
- /* if unknown chip, assume array element #0, original RTL-8139 in this case */
- printk (KERN_DEBUG PFX "%s: unknown chip version, assuming RTL-8139\n",
- pdev->slot_name);
- printk (KERN_DEBUG PFX "%s: TxConfig = 0x%lx\n", pdev->slot_name, RTL_R32 (TxConfig));
- tp->chipset = 0;
-
-match:
- DPRINTK ("chipset id (%d) == index %d, '%s'\n",
- tmp,
- tp->chipset,
- rtl_chip_info[tp->chipset].name);
-
- if (tp->chipset >= CH_8139B) {
- u8 new_tmp8 = tmp8 = RTL_R8 (Config1);
- DPRINTK("PCI PM wakeup\n");
- if ((rtl_chip_info[tp->chipset].flags & HasLWake) &&
- (tmp8 & LWAKE))
- new_tmp8 &= ~LWAKE;
- new_tmp8 |= Cfg1_PM_Enable;
- if (new_tmp8 != tmp8) {
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W8 (Config1, tmp8);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
- }
- if (rtl_chip_info[tp->chipset].flags & HasLWake) {
- tmp8 = RTL_R8 (Config4);
- if (tmp8 & LWPTN)
- RTL_W8 (Config4, tmp8 & ~LWPTN);
- }
- } else {
- DPRINTK("Old chip wakeup\n");
- tmp8 = RTL_R8 (Config1);
- tmp8 &= ~(SLEEP | PWRDN);
- RTL_W8 (Config1, tmp8);
- }
-
- rtl8139_chip_reset (ioaddr);
-
- *dev_out = dev;
- return 0;
-
-err_out:
- __rtl8139_cleanup_dev (dev);
- return rc;
-}
-
-
-static int __devinit rtl8139_init_one (struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- struct net_device *dev = NULL;
- struct rtl8139_private *tp;
- int i, addr_len, option;
- void *ioaddr;
- static int board_idx = -1;
- u8 pci_rev;
-
- assert (pdev != NULL);
- assert (ent != NULL);
-
- board_idx++;
-
- /* when we're built into the kernel, the driver version message
- * is only printed if at least one 8139 board has been found
- */
-#ifndef MODULE
- {
- static int printed_version;
- if (!printed_version++)
- printk (KERN_INFO RTL8139_DRIVER_NAME "\n");
- }
-#endif
-
- pci_read_config_byte(pdev, PCI_REVISION_ID, &pci_rev);
-
- if (pdev->vendor == PCI_VENDOR_ID_REALTEK &&
- pdev->device == PCI_DEVICE_ID_REALTEK_8139 && pci_rev >= 0x20) {
- printk(KERN_INFO PFX "pci dev %s (id %04x:%04x rev %02x) is an enhanced 8139C+ chip\n",
- pdev->slot_name, pdev->vendor, pdev->device, pci_rev);
- printk(KERN_INFO PFX "Use the \"8139cp\" driver for improved performance and stability.\n");
- }
-
- i = rtl8139_init_board (pdev, &dev);
- if (i < 0)
- return i;
-
- tp = dev->priv;
- ioaddr = tp->mmio_addr;
-
- assert (ioaddr != NULL);
- assert (dev != NULL);
- assert (tp != NULL);
-
- addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6;
- for (i = 0; i < 3; i++)
- ((u16 *) (dev->dev_addr))[i] =
- le16_to_cpu (read_eeprom (ioaddr, i + 7, addr_len));
-
- /* The Rtl8139-specific entries in the device structure. */
- dev->open = rtl8139_open;
- dev->hard_start_xmit = rtl8139_start_xmit;
- dev->stop = rtl8139_close;
- dev->get_stats = rtl8139_get_stats;
- dev->set_multicast_list = rtl8139_set_rx_mode;
-#if 0
- dev->do_ioctl = netdev_ioctl;
-#endif
- dev->tx_timeout = rtl8139_tx_timeout;
- dev->watchdog_timeo = TX_TIMEOUT;
-
- /* note: the hardware is not capable of sg/csum/highdma, however
- * through the use of skb_copy_and_csum_dev we enable these
- * features
- */
- dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_HIGHDMA;
-
- dev->irq = pdev->irq;
-
- /* dev->priv/tp zeroed and aligned in init_etherdev */
- tp = dev->priv;
-
- /* note: tp->chipset set in rtl8139_init_board */
- tp->drv_flags = board_info[ent->driver_data].hw_flags;
- tp->mmio_addr = ioaddr;
- spin_lock_init (&tp->lock);
-#if 0
- init_waitqueue_head (&tp->thr_wait);
- init_completion (&tp->thr_exited);
-#endif
- tp->mii.dev = dev;
- tp->mii.mdio_read = mdio_read;
- tp->mii.mdio_write = mdio_write;
- tp->mii.phy_id_mask = 0x3f;
- tp->mii.reg_num_mask = 0x1f;
-
- /* dev is fully set up and ready to use now */
- DPRINTK("about to register device named %s (%p)...\n", dev->name, dev);
- i = register_netdev (dev);
- if (i) goto err_out;
-
- pci_set_drvdata (pdev, dev);
-
- printk (KERN_INFO "%s: %s at 0x%lx, "
- "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x, "
- "IRQ %d\n",
- dev->name,
- board_info[ent->driver_data].name,
- dev->base_addr,
- dev->dev_addr[0], dev->dev_addr[1],
- dev->dev_addr[2], dev->dev_addr[3],
- dev->dev_addr[4], dev->dev_addr[5],
- dev->irq);
-
- printk (KERN_DEBUG "%s: Identified 8139 chip type '%s'\n",
- dev->name, rtl_chip_info[tp->chipset].name);
-
- /* Find the connected MII xcvrs.
- Doing this in open() would allow detecting external xcvrs later, but
- takes too much time. */
-#ifdef CONFIG_8139TOO_8129
- if (tp->drv_flags & HAS_MII_XCVR) {
- int phy, phy_idx = 0;
- for (phy = 0; phy < 32 && phy_idx < sizeof(tp->phys); phy++) {
- int mii_status = mdio_read(dev, phy, 1);
- if (mii_status != 0xffff && mii_status != 0x0000) {
- u16 advertising = mdio_read(dev, phy, 4);
- tp->phys[phy_idx++] = phy;
- printk(KERN_INFO "%s: MII transceiver %d status 0x%4.4x "
- "advertising %4.4x.\n",
- dev->name, phy, mii_status, advertising);
- }
- }
- if (phy_idx == 0) {
- printk(KERN_INFO "%s: No MII transceivers found! Assuming SYM "
- "transceiver.\n",
- dev->name);
- tp->phys[0] = 32;
- }
- } else
-#endif
- tp->phys[0] = 32;
- tp->mii.phy_id = tp->phys[0];
-
- /* The lower four bits are the media type. */
- option = (board_idx >= MAX_UNITS) ? 0 : media[board_idx];
- if (option > 0) {
- tp->mii.full_duplex = (option & 0x210) ? 1 : 0;
- tp->default_port = option & 0xFF;
- if (tp->default_port)
- tp->mii.force_media = 1;
- }
- if (board_idx < MAX_UNITS && full_duplex[board_idx] > 0)
- tp->mii.full_duplex = full_duplex[board_idx];
- if (tp->mii.full_duplex) {
- printk(KERN_INFO "%s: Media type forced to Full Duplex.\n", dev->name);
- /* Changing the MII-advertised media because might prevent
- re-connection. */
- tp->mii.force_media = 1;
- }
- if (tp->default_port) {
- printk(KERN_INFO " Forcing %dMbps %s-duplex operation.\n",
- (option & 0x20 ? 100 : 10),
- (option & 0x10 ? "full" : "half"));
- mdio_write(dev, tp->phys[0], 0,
- ((option & 0x20) ? 0x2000 : 0) | /* 100Mbps? */
- ((option & 0x10) ? 0x0100 : 0)); /* Full duplex? */
- }
-
- /* Put the chip into low-power mode. */
- if (rtl_chip_info[tp->chipset].flags & HasHltClk)
- RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */
-
- alert_slow_netdevice(dev, (char *)board_info[ent->driver_data].name);
-
- return 0;
-
-err_out:
- __rtl8139_cleanup_dev (dev);
- return i;
-}
-
-
-static void __devexit rtl8139_remove_one (struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata (pdev);
- struct rtl8139_private *np;
-
- assert (dev != NULL);
- np = dev->priv;
- assert (np != NULL);
-
- unregister_netdev (dev);
-
- __rtl8139_cleanup_dev (dev);
-}
-
-
-/* Serial EEPROM section. */
-
-/* EEPROM_Ctrl bits. */
-#define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
-#define EE_CS 0x08 /* EEPROM chip select. */
-#define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */
-#define EE_WRITE_0 0x00
-#define EE_WRITE_1 0x02
-#define EE_DATA_READ 0x01 /* EEPROM chip data out. */
-#define EE_ENB (0x80 | EE_CS)
-
-/* Delay between EEPROM clock transitions.
- No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
- */
-
-#define eeprom_delay() readl(ee_addr)
-
-/* The EEPROM commands include the alway-set leading bit. */
-#define EE_WRITE_CMD (5)
-#define EE_READ_CMD (6)
-#define EE_ERASE_CMD (7)
-
-static int __devinit read_eeprom (void *ioaddr, int location, int addr_len)
-{
- int i;
- unsigned retval = 0;
- void *ee_addr = ioaddr + Cfg9346;
- int read_cmd = location | (EE_READ_CMD << addr_len);
-
- writeb (EE_ENB & ~EE_CS, ee_addr);
- writeb (EE_ENB, ee_addr);
- eeprom_delay ();
-
- /* Shift the read command bits out. */
- for (i = 4 + addr_len; i >= 0; i--) {
- int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
- writeb (EE_ENB | dataval, ee_addr);
- eeprom_delay ();
- writeb (EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
- eeprom_delay ();
- }
- writeb (EE_ENB, ee_addr);
- eeprom_delay ();
-
- for (i = 16; i > 0; i--) {
- writeb (EE_ENB | EE_SHIFT_CLK, ee_addr);
- eeprom_delay ();
- retval =
- (retval << 1) | ((readb (ee_addr) & EE_DATA_READ) ? 1 :
- 0);
- writeb (EE_ENB, ee_addr);
- eeprom_delay ();
- }
-
- /* Terminate the EEPROM access. */
- writeb (~EE_CS, ee_addr);
- eeprom_delay ();
-
- return retval;
-}
-
-/* MII serial management: mostly bogus for now. */
-/* Read and write the MII management registers using software-generated
- serial MDIO protocol.
- The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
- met by back-to-back PCI I/O cycles, but we insert a delay to avoid
- "overclocking" issues. */
-#define MDIO_DIR 0x80
-#define MDIO_DATA_OUT 0x04
-#define MDIO_DATA_IN 0x02
-#define MDIO_CLK 0x01
-#define MDIO_WRITE0 (MDIO_DIR)
-#define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT)
-
-#define mdio_delay(mdio_addr) readb(mdio_addr)
-
-
-static char mii_2_8139_map[8] = {
- BasicModeCtrl,
- BasicModeStatus,
- 0,
- 0,
- NWayAdvert,
- NWayLPAR,
- NWayExpansion,
- 0
-};
-
-
-#ifdef CONFIG_8139TOO_8129
-/* Syncronize the MII management interface by shifting 32 one bits out. */
-static void mdio_sync (void *mdio_addr)
-{
- int i;
-
- for (i = 32; i >= 0; i--) {
- writeb (MDIO_WRITE1, mdio_addr);
- mdio_delay (mdio_addr);
- writeb (MDIO_WRITE1 | MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
- }
-}
-#endif
-
-static int mdio_read (struct net_device *dev, int phy_id, int location)
-{
- struct rtl8139_private *tp = dev->priv;
- int retval = 0;
-#ifdef CONFIG_8139TOO_8129
- void *mdio_addr = tp->mmio_addr + Config4;
- int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location;
- int i;
-#endif
-
- if (phy_id > 31) { /* Really a 8139. Use internal registers. */
- return location < 8 && mii_2_8139_map[location] ?
- readw (tp->mmio_addr + mii_2_8139_map[location]) : 0;
- }
-
-#ifdef CONFIG_8139TOO_8129
- mdio_sync (mdio_addr);
- /* Shift the read command bits out. */
- for (i = 15; i >= 0; i--) {
- int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0;
-
- writeb (MDIO_DIR | dataval, mdio_addr);
- mdio_delay (mdio_addr);
- writeb (MDIO_DIR | dataval | MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
- }
-
- /* Read the two transition, 16 data, and wire-idle bits. */
- for (i = 19; i > 0; i--) {
- writeb (0, mdio_addr);
- mdio_delay (mdio_addr);
- retval = (retval << 1) | ((readb (mdio_addr) & MDIO_DATA_IN) ? 1 : 0);
- writeb (MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
- }
-#endif
-
- return (retval >> 1) & 0xffff;
-}
-
-
-static void mdio_write (struct net_device *dev, int phy_id, int location,
- int value)
-{
- struct rtl8139_private *tp = dev->priv;
-#ifdef CONFIG_8139TOO_8129
- void *mdio_addr = tp->mmio_addr + Config4;
- int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (location << 18) | value;
- int i;
-#endif
-
- if (phy_id > 31) { /* Really a 8139. Use internal registers. */
- void *ioaddr = tp->mmio_addr;
- if (location == 0) {
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W16 (BasicModeCtrl, value);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
- } else if (location < 8 && mii_2_8139_map[location])
- RTL_W16 (mii_2_8139_map[location], value);
- return;
- }
-
-#ifdef CONFIG_8139TOO_8129
- mdio_sync (mdio_addr);
-
- /* Shift the command bits out. */
- for (i = 31; i >= 0; i--) {
- int dataval =
- (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0;
- writeb (dataval, mdio_addr);
- mdio_delay (mdio_addr);
- writeb (dataval | MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
- }
- /* Clear out extra bits. */
- for (i = 2; i > 0; i--) {
- writeb (0, mdio_addr);
- mdio_delay (mdio_addr);
- writeb (MDIO_CLK, mdio_addr);
- mdio_delay (mdio_addr);
- }
-#endif
-}
-
-
-static int rtl8139_open (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- int retval;
-#ifdef RTL8139_DEBUG
- void *ioaddr = tp->mmio_addr;
-#endif
-
- retval = request_irq (dev->irq, rtl8139_interrupt, SA_SHIRQ, dev->name, dev);
- if (retval)
- return retval;
-
- tp->tx_bufs = pci_alloc_consistent(tp->pci_dev, TX_BUF_TOT_LEN,
- &tp->tx_bufs_dma);
- tp->rx_ring = pci_alloc_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
- &tp->rx_ring_dma);
- if (tp->tx_bufs == NULL || tp->rx_ring == NULL) {
- free_irq(dev->irq, dev);
-
- if (tp->tx_bufs)
- pci_free_consistent(tp->pci_dev, TX_BUF_TOT_LEN,
- tp->tx_bufs, tp->tx_bufs_dma);
- if (tp->rx_ring)
- pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
- tp->rx_ring, tp->rx_ring_dma);
-
- return -ENOMEM;
-
- }
-
- tp->mii.full_duplex = tp->mii.force_media;
- tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000;
- tp->twistie = (tp->chipset == CH_8139_K) ? 1 : 0;
- tp->time_to_die = 0;
-
- rtl8139_init_ring (dev);
- rtl8139_hw_start (dev);
-
- DPRINTK ("%s: rtl8139_open() ioaddr %#lx IRQ %d"
- " GP Pins %2.2x %s-duplex.\n",
- dev->name, pci_resource_start (tp->pci_dev, 1),
- dev->irq, RTL_R8 (MediaStatus),
- tp->mii.full_duplex ? "full" : "half");
-
-#if 0
- tp->thr_pid = kernel_thread (rtl8139_thread, dev, CLONE_FS | CLONE_FILES);
- if (tp->thr_pid < 0)
- printk (KERN_WARNING "%s: unable to start kernel thread\n",
- dev->name);
-#else
- init_timer(&tp->timer);
- tp->timer.expires = jiffies + next_tick;
- tp->timer.data = (unsigned long)dev;
- tp->timer.function = rtl8139_timer;
- add_timer(&tp->timer);
-#endif
-
- return 0;
-}
-
-
-static void rtl_check_media (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
-
- if (tp->phys[0] >= 0) {
- u16 mii_lpa = mdio_read(dev, tp->phys[0], MII_LPA);
- if (mii_lpa == 0xffff)
- ; /* Not there */
- else if ((mii_lpa & LPA_100FULL) == LPA_100FULL
- || (mii_lpa & 0x00C0) == LPA_10FULL)
- tp->mii.full_duplex = 1;
-
- printk (KERN_INFO"%s: Setting %s%s-duplex based on"
- " auto-negotiated partner ability %4.4x.\n",
- dev->name, mii_lpa == 0 ? "" :
- (mii_lpa & 0x0180) ? "100mbps " : "10mbps ",
- tp->mii.full_duplex ? "full" : "half", mii_lpa);
- }
-}
-
-/* Start the hardware at open or resume. */
-static void rtl8139_hw_start (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- u32 i;
- u8 tmp;
-
- /* Bring old chips out of low-power mode. */
- if (rtl_chip_info[tp->chipset].flags & HasHltClk)
- RTL_W8 (HltClk, 'R');
-
- rtl8139_chip_reset (ioaddr);
-
- /* unlock Config[01234] and BMCR register writes */
- RTL_W8_F (Cfg9346, Cfg9346_Unlock);
- /* Restore our idea of the MAC address. */
- RTL_W32_F (MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0)));
- RTL_W32_F (MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4)));
-
- /* Must enable Tx/Rx before setting transfer thresholds! */
- RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
-
- tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys;
- RTL_W32 (RxConfig, tp->rx_config);
-
- /* Check this value: the documentation for IFG contradicts ifself. */
- RTL_W32 (TxConfig, rtl8139_tx_config);
-
- tp->cur_rx = 0;
-
- rtl_check_media (dev);
-
- if (tp->chipset >= CH_8139B) {
- /* Disable magic packet scanning, which is enabled
- * when PM is enabled in Config1. It can be reenabled
- * via ETHTOOL_SWOL if desired. */
- RTL_W8 (Config3, RTL_R8 (Config3) & ~Cfg3_Magic);
- }
-
- DPRINTK("init buffer addresses\n");
-
- /* Lock Config[01234] and BMCR register writes */
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-
- /* init Rx ring buffer DMA address */
- RTL_W32_F (RxBuf, tp->rx_ring_dma);
-
- /* init Tx buffer DMA addresses */
- for (i = 0; i < NUM_TX_DESC; i++)
- RTL_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs));
-
- RTL_W32 (RxMissed, 0);
-
- rtl8139_set_rx_mode (dev);
-
- /* no early-rx interrupts */
- RTL_W16 (MultiIntr, RTL_R16 (MultiIntr) & MultiIntrClear);
-
- /* make sure RxTx has started */
- tmp = RTL_R8 (ChipCmd);
- if ((!(tmp & CmdRxEnb)) || (!(tmp & CmdTxEnb)))
- RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
-
- /* Enable all known interrupts by setting the interrupt mask. */
- RTL_W16 (IntrMask, rtl8139_intr_mask);
-
- netif_start_queue (dev);
-}
-
-
-/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
-static void rtl8139_init_ring (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- int i;
-
- tp->cur_rx = 0;
- tp->cur_tx = 0;
- tp->dirty_tx = 0;
-
- for (i = 0; i < NUM_TX_DESC; i++)
- tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE];
-}
-
-
-#ifndef CONFIG_8139TOO_TUNE_TWISTER
-static inline void rtl8139_tune_twister (struct net_device *dev,
- struct rtl8139_private *tp) {}
-#else
-static void rtl8139_tune_twister (struct net_device *dev,
- struct rtl8139_private *tp)
-{
- int linkcase;
- void *ioaddr = tp->mmio_addr;
-
- /* This is a complicated state machine to configure the "twister" for
- impedance/echos based on the cable length.
- All of this is magic and undocumented.
- */
- switch (tp->twistie) {
- case 1:
- if (RTL_R16 (CSCR) & CSCR_LinkOKBit) {
- /* We have link beat, let us tune the twister. */
- RTL_W16 (CSCR, CSCR_LinkDownOffCmd);
- tp->twistie = 2; /* Change to state 2. */
- next_tick = HZ / 10;
- } else {
- /* Just put in some reasonable defaults for when beat returns. */
- RTL_W16 (CSCR, CSCR_LinkDownCmd);
- RTL_W32 (FIFOTMS, 0x20); /* Turn on cable test mode. */
- RTL_W32 (PARA78, PARA78_default);
- RTL_W32 (PARA7c, PARA7c_default);
- tp->twistie = 0; /* Bail from future actions. */
- }
- break;
- case 2:
- /* Read how long it took to hear the echo. */
- linkcase = RTL_R16 (CSCR) & CSCR_LinkStatusBits;
- if (linkcase == 0x7000)
- tp->twist_row = 3;
- else if (linkcase == 0x3000)
- tp->twist_row = 2;
- else if (linkcase == 0x1000)
- tp->twist_row = 1;
- else
- tp->twist_row = 0;
- tp->twist_col = 0;
- tp->twistie = 3; /* Change to state 2. */
- next_tick = HZ / 10;
- break;
- case 3:
- /* Put out four tuning parameters, one per 100msec. */
- if (tp->twist_col == 0)
- RTL_W16 (FIFOTMS, 0);
- RTL_W32 (PARA7c, param[(int) tp->twist_row]
- [(int) tp->twist_col]);
- next_tick = HZ / 10;
- if (++tp->twist_col >= 4) {
- /* For short cables we are done.
- For long cables (row == 3) check for mistune. */
- tp->twistie =
- (tp->twist_row == 3) ? 4 : 0;
- }
- break;
- case 4:
- /* Special case for long cables: check for mistune. */
- if ((RTL_R16 (CSCR) &
- CSCR_LinkStatusBits) == 0x7000) {
- tp->twistie = 0;
- break;
- } else {
- RTL_W32 (PARA7c, 0xfb38de03);
- tp->twistie = 5;
- next_tick = HZ / 10;
- }
- break;
- case 5:
- /* Retune for shorter cable (column 2). */
- RTL_W32 (FIFOTMS, 0x20);
- RTL_W32 (PARA78, PARA78_default);
- RTL_W32 (PARA7c, PARA7c_default);
- RTL_W32 (FIFOTMS, 0x00);
- tp->twist_row = 2;
- tp->twist_col = 0;
- tp->twistie = 3;
- next_tick = HZ / 10;
- break;
-
- default:
- /* do nothing */
- break;
- }
-}
-#endif /* CONFIG_8139TOO_TUNE_TWISTER */
-
-
-static inline void rtl8139_thread_iter (struct net_device *dev,
- struct rtl8139_private *tp,
- void *ioaddr)
-{
- int mii_lpa;
-
- mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA);
-
- if (!tp->mii.force_media && mii_lpa != 0xffff) {
- int duplex = (mii_lpa & LPA_100FULL)
- || (mii_lpa & 0x01C0) == 0x0040;
- if (tp->mii.full_duplex != duplex) {
- tp->mii.full_duplex = duplex;
-
- if (mii_lpa) {
- printk (KERN_INFO
- "%s: Setting %s-duplex based on MII #%d link"
- " partner ability of %4.4x.\n",
- dev->name,
- tp->mii.full_duplex ? "full" : "half",
- tp->phys[0], mii_lpa);
- } else {
- printk(KERN_INFO"%s: media is unconnected, link down, or incompatible connection\n",
- dev->name);
- }
-#if 0
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-#endif
- }
- }
-
- next_tick = HZ * 60;
-
- rtl8139_tune_twister (dev, tp);
-
- DPRINTK ("%s: Media selection tick, Link partner %4.4x.\n",
- dev->name, RTL_R16 (NWayLPAR));
- DPRINTK ("%s: Other registers are IntMask %4.4x IntStatus %4.4x\n",
- dev->name, RTL_R16 (IntrMask), RTL_R16 (IntrStatus));
- DPRINTK ("%s: Chip config %2.2x %2.2x.\n",
- dev->name, RTL_R8 (Config0),
- RTL_R8 (Config1));
-}
-
-
-#if 0
-static int rtl8139_thread (void *data)
-{
- struct net_device *dev = data;
- struct rtl8139_private *tp = dev->priv;
- unsigned long timeout;
-
- daemonize ();
- reparent_to_init();
- spin_lock_irq(¤t->sigmask_lock);
- sigemptyset(¤t->blocked);
- recalc_sigpending(current);
- spin_unlock_irq(¤t->sigmask_lock);
-
- strncpy (current->comm, dev->name, sizeof(current->comm) - 1);
- current->comm[sizeof(current->comm) - 1] = '\0';
-
- while (1) {
- timeout = next_tick;
- do {
- timeout = interruptible_sleep_on_timeout (&tp->thr_wait, timeout);
- } while (!signal_pending (current) && (timeout > 0));
-
- if (signal_pending (current)) {
- spin_lock_irq(¤t->sigmask_lock);
- flush_signals(current);
- spin_unlock_irq(¤t->sigmask_lock);
- }
-
- if (tp->time_to_die)
- break;
-
- rtnl_lock ();
- rtl8139_thread_iter (dev, tp, tp->mmio_addr);
- rtnl_unlock ();
- }
-
- complete_and_exit (&tp->thr_exited, 0);
-}
-#else
-static void rtl8139_timer(unsigned long arg)
-{
- struct net_device *dev = (struct net_device *)arg;
- struct rtl8139_private *tp = dev->priv;
- rtl8139_thread_iter (dev, tp, tp->mmio_addr);
- mod_timer(&tp->timer, jiffies + next_tick);
-}
-#endif
-
-
-static void rtl8139_tx_clear (struct rtl8139_private *tp)
-{
- tp->cur_tx = 0;
- tp->dirty_tx = 0;
-
- /* XXX account for unsent Tx packets in tp->stats.tx_dropped */
-}
-
-
-static void rtl8139_tx_timeout (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- int i;
- u8 tmp8;
- unsigned long flags;
-
- DPRINTK ("%s: Transmit timeout, status %2.2x %4.4x "
- "media %2.2x.\n", dev->name,
- RTL_R8 (ChipCmd),
- RTL_R16 (IntrStatus),
- RTL_R8 (MediaStatus));
-
- tp->xstats.tx_timeouts++;
-
- /* disable Tx ASAP, if not already */
- tmp8 = RTL_R8 (ChipCmd);
- if (tmp8 & CmdTxEnb)
- RTL_W8 (ChipCmd, CmdRxEnb);
-
- /* Disable interrupts by clearing the interrupt mask. */
- RTL_W16 (IntrMask, 0x0000);
-
- /* Emit info to figure out what went wrong. */
- printk (KERN_DEBUG "%s: Tx queue start entry %ld dirty entry %ld.\n",
- dev->name, tp->cur_tx, tp->dirty_tx);
- for (i = 0; i < NUM_TX_DESC; i++)
- printk (KERN_DEBUG "%s: Tx descriptor %d is %8.8lx.%s\n",
- dev->name, i, RTL_R32 (TxStatus0 + (i * 4)),
- i == tp->dirty_tx % NUM_TX_DESC ?
- " (queue head)" : "");
-
- /* Stop a shared interrupt from scavenging while we are. */
- spin_lock_irqsave (&tp->lock, flags);
- rtl8139_tx_clear (tp);
- spin_unlock_irqrestore (&tp->lock, flags);
-
- /* ...and finally, reset everything */
- rtl8139_hw_start (dev);
-
- netif_wake_queue (dev);
-}
-
-
-static int rtl8139_start_xmit (struct sk_buff *skb, struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- unsigned int entry;
- unsigned int len = skb->len;
-
- /* Calculate the next Tx descriptor entry. */
- entry = tp->cur_tx % NUM_TX_DESC;
-
- if (likely(len < TX_BUF_SIZE)) {
- if(len < ETH_ZLEN)
- memset(tp->tx_buf[entry], 0, ETH_ZLEN);
-#if 0
- skb_copy_and_csum_dev(skb, tp->tx_buf[entry]);
-#else
- skb_copy_bits(skb, 0, tp->tx_buf[entry], skb->len);
-#endif
- dev_kfree_skb(skb);
- } else {
- dev_kfree_skb(skb);
- tp->stats.tx_dropped++;
- return 0;
- }
-
- /* Note: the chip doesn't have auto-pad! */
- spin_lock_irq(&tp->lock);
- RTL_W32_F (TxStatus0 + (entry * sizeof (u32)),
- tp->tx_flag | max(len, (unsigned int)ETH_ZLEN));
-
- dev->trans_start = jiffies;
-
- tp->cur_tx++;
- wmb();
-
- if ((tp->cur_tx - NUM_TX_DESC) == tp->dirty_tx)
- netif_stop_queue (dev);
- spin_unlock_irq(&tp->lock);
-
- DPRINTK ("%s: Queued Tx packet size %u to slot %d.\n",
- dev->name, len, entry);
-
- return 0;
-}
-
-
-static void rtl8139_tx_interrupt (struct net_device *dev,
- struct rtl8139_private *tp,
- void *ioaddr)
-{
- unsigned long dirty_tx, tx_left;
-
- assert (dev != NULL);
- assert (tp != NULL);
- assert (ioaddr != NULL);
-
- dirty_tx = tp->dirty_tx;
- tx_left = tp->cur_tx - dirty_tx;
- while (tx_left > 0) {
- int entry = dirty_tx % NUM_TX_DESC;
- int txstatus;
-
- txstatus = RTL_R32 (TxStatus0 + (entry * sizeof (u32)));
-
- if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted)))
- break; /* It still hasn't been Txed */
-
- /* Note: TxCarrierLost is always asserted at 100mbps. */
- if (txstatus & (TxOutOfWindow | TxAborted)) {
- /* There was an major error, log it. */
- DPRINTK ("%s: Transmit error, Tx status %8.8x.\n",
- dev->name, txstatus);
- tp->stats.tx_errors++;
- if (txstatus & TxAborted) {
- tp->stats.tx_aborted_errors++;
- RTL_W32 (TxConfig, TxClearAbt);
- RTL_W16 (IntrStatus, TxErr);
- wmb();
- }
- if (txstatus & TxCarrierLost)
- tp->stats.tx_carrier_errors++;
- if (txstatus & TxOutOfWindow)
- tp->stats.tx_window_errors++;
- } else {
- if (txstatus & TxUnderrun) {
- /* Add 64 to the Tx FIFO threshold. */
- if (tp->tx_flag < 0x00300000)
- tp->tx_flag += 0x00020000;
- tp->stats.tx_fifo_errors++;
- }
- tp->stats.collisions += (txstatus >> 24) & 15;
- tp->stats.tx_bytes += txstatus & 0x7ff;
- tp->stats.tx_packets++;
- }
-
- dirty_tx++;
- tx_left--;
- }
-
-#ifndef RTL8139_NDEBUG
- if (tp->cur_tx - dirty_tx > NUM_TX_DESC) {
- printk (KERN_ERR "%s: Out-of-sync dirty pointer, %ld vs. %ld.\n",
- dev->name, dirty_tx, tp->cur_tx);
- dirty_tx += NUM_TX_DESC;
- }
-#endif /* RTL8139_NDEBUG */
-
- /* only wake the queue if we did work, and the queue is stopped */
- if (tp->dirty_tx != dirty_tx) {
- tp->dirty_tx = dirty_tx;
- mb();
- if (netif_queue_stopped (dev))
- netif_wake_queue (dev);
- }
-}
-
-
-/* TODO: clean this up! Rx reset need not be this intensive */
-static void rtl8139_rx_err (u32 rx_status, struct net_device *dev,
- struct rtl8139_private *tp, void *ioaddr)
-{
- u8 tmp8;
-#ifdef CONFIG_8139_OLD_RX_RESET
- int tmp_work;
-#endif
-
- DPRINTK ("%s: Ethernet frame had errors, status %8.8x.\n",
- dev->name, rx_status);
- tp->stats.rx_errors++;
- if (!(rx_status & RxStatusOK)) {
- if (rx_status & RxTooLong) {
- DPRINTK ("%s: Oversized Ethernet frame, status %4.4x!\n",
- dev->name, rx_status);
- /* A.C.: The chip hangs here. */
- }
- if (rx_status & (RxBadSymbol | RxBadAlign))
- tp->stats.rx_frame_errors++;
- if (rx_status & (RxRunt | RxTooLong))
- tp->stats.rx_length_errors++;
- if (rx_status & RxCRCErr)
- tp->stats.rx_crc_errors++;
- } else {
- tp->xstats.rx_lost_in_ring++;
- }
-
-#ifndef CONFIG_8139_OLD_RX_RESET
- tmp8 = RTL_R8 (ChipCmd);
- RTL_W8 (ChipCmd, tmp8 & ~CmdRxEnb);
- RTL_W8 (ChipCmd, tmp8);
- RTL_W32 (RxConfig, tp->rx_config);
- tp->cur_rx = 0;
-#else
- /* Reset the receiver, based on RealTek recommendation. (Bug?) */
-
- /* disable receive */
- RTL_W8_F (ChipCmd, CmdTxEnb);
- tmp_work = 200;
- while (--tmp_work > 0) {
- udelay(1);
- tmp8 = RTL_R8 (ChipCmd);
- if (!(tmp8 & CmdRxEnb))
- break;
- }
- if (tmp_work <= 0)
- printk (KERN_WARNING PFX "rx stop wait too long\n");
- /* restart receive */
- tmp_work = 200;
- while (--tmp_work > 0) {
- RTL_W8_F (ChipCmd, CmdRxEnb | CmdTxEnb);
- udelay(1);
- tmp8 = RTL_R8 (ChipCmd);
- if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb))
- break;
- }
- if (tmp_work <= 0)
- printk (KERN_WARNING PFX "tx/rx enable wait too long\n");
-
- /* and reinitialize all rx related registers */
- RTL_W8_F (Cfg9346, Cfg9346_Unlock);
- /* Must enable Tx/Rx before setting transfer thresholds! */
- RTL_W8 (ChipCmd, CmdRxEnb | CmdTxEnb);
-
- tp->rx_config = rtl8139_rx_config | AcceptBroadcast | AcceptMyPhys;
- RTL_W32 (RxConfig, tp->rx_config);
- tp->cur_rx = 0;
-
- DPRINTK("init buffer addresses\n");
-
- /* Lock Config[01234] and BMCR register writes */
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-
- /* init Rx ring buffer DMA address */
- RTL_W32_F (RxBuf, tp->rx_ring_dma);
-
- /* A.C.: Reset the multicast list. */
- __set_rx_mode (dev);
-#endif
-}
-
-static void rtl8139_rx_interrupt (struct net_device *dev,
- struct rtl8139_private *tp, void *ioaddr)
-{
- unsigned char *rx_ring;
- u16 cur_rx;
-
- assert (dev != NULL);
- assert (tp != NULL);
- assert (ioaddr != NULL);
-
- rx_ring = tp->rx_ring;
- cur_rx = tp->cur_rx;
-
- DPRINTK ("%s: In rtl8139_rx(), current %4.4x BufAddr %4.4x,"
- " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx,
- RTL_R16 (RxBufAddr),
- RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd));
-
- while ((RTL_R8 (ChipCmd) & RxBufEmpty) == 0) {
- int ring_offset = cur_rx % RX_BUF_LEN;
- u32 rx_status;
- unsigned int rx_size;
- unsigned int pkt_size;
- struct sk_buff *skb;
-
- rmb();
-
- /* read size+status of next frame from DMA ring buffer */
- rx_status = le32_to_cpu (*(u32 *) (rx_ring + ring_offset));
- rx_size = rx_status >> 16;
- pkt_size = rx_size - 4;
-
- DPRINTK ("%s: rtl8139_rx() status %4.4x, size %4.4x,"
- " cur %4.4x.\n", dev->name, rx_status,
- rx_size, cur_rx);
-#if RTL8139_DEBUG > 2
- {
- int i;
- DPRINTK ("%s: Frame contents ", dev->name);
- for (i = 0; i < 70; i++)
- printk (" %2.2x",
- rx_ring[ring_offset + i]);
- printk (".\n");
- }
-#endif
-
- /* Packet copy from FIFO still in progress.
- * Theoretically, this should never happen
- * since EarlyRx is disabled.
- */
- if (rx_size == 0xfff0) {
- tp->xstats.early_rx++;
- break;
- }
-
- /* If Rx err or invalid rx_size/rx_status received
- * (which happens if we get lost in the ring),
- * Rx process gets reset, so we abort any further
- * Rx processing.
- */
- if ((rx_size > (MAX_ETH_FRAME_SIZE+4)) ||
- (rx_size < 8) ||
- (!(rx_status & RxStatusOK))) {
- rtl8139_rx_err (rx_status, dev, tp, ioaddr);
- return;
- }
-
- /* Malloc up new buffer, compatible with net-2e. */
- /* Omit the four octet CRC from the length. */
-
- /* TODO: consider allocating skb's outside of
- * interrupt context, both to speed interrupt processing,
- * and also to reduce the chances of having to
- * drop packets here under memory pressure.
- */
-
- skb = dev_alloc_skb (pkt_size + 2);
- if (skb) {
- skb->dev = dev;
- skb_reserve (skb, 2); /* 16 byte align the IP fields. */
-
- eth_copy_and_sum (skb, &rx_ring[ring_offset + 4], pkt_size, 0);
- skb_put (skb, pkt_size);
-
- skb->protocol = eth_type_trans (skb, dev);
- netif_rx (skb);
- dev->last_rx = jiffies;
- tp->stats.rx_bytes += pkt_size;
- tp->stats.rx_packets++;
- } else {
- printk (KERN_WARNING
- "%s: Memory squeeze, dropping packet.\n",
- dev->name);
- tp->stats.rx_dropped++;
- }
-
- cur_rx = (cur_rx + rx_size + 4 + 3) & ~3;
- RTL_W16 (RxBufPtr, cur_rx - 16);
-
- if (RTL_R16 (IntrStatus) & RxAckBits)
- RTL_W16_F (IntrStatus, RxAckBits);
- }
-
- DPRINTK ("%s: Done rtl8139_rx(), current %4.4x BufAddr %4.4x,"
- " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx,
- RTL_R16 (RxBufAddr),
- RTL_R16 (RxBufPtr), RTL_R8 (ChipCmd));
-
- tp->cur_rx = cur_rx;
-}
-
-
-static void rtl8139_weird_interrupt (struct net_device *dev,
- struct rtl8139_private *tp,
- void *ioaddr,
- int status, int link_changed)
-{
- DPRINTK ("%s: Abnormal interrupt, status %8.8x.\n",
- dev->name, status);
-
- assert (dev != NULL);
- assert (tp != NULL);
- assert (ioaddr != NULL);
-
- /* Update the error count. */
- tp->stats.rx_missed_errors += RTL_R32 (RxMissed);
- RTL_W32 (RxMissed, 0);
-
- if ((status & RxUnderrun) && link_changed &&
- (tp->drv_flags & HAS_LNK_CHNG)) {
- /* Really link-change on new chips. */
- int lpar = RTL_R16 (NWayLPAR);
- int duplex = (lpar & LPA_100FULL) || (lpar & 0x01C0) == 0x0040
- || tp->mii.force_media;
- if (tp->mii.full_duplex != duplex) {
- tp->mii.full_duplex = duplex;
-#if 0
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W8 (Config1, tp->mii.full_duplex ? 0x60 : 0x20);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-#endif
- }
- status &= ~RxUnderrun;
- }
-
- /* XXX along with rtl8139_rx_err, are we double-counting errors? */
- if (status &
- (RxUnderrun | RxOverflow | RxErr | RxFIFOOver))
- tp->stats.rx_errors++;
-
- if (status & PCSTimeout)
- tp->stats.rx_length_errors++;
- if (status & (RxUnderrun | RxFIFOOver))
- tp->stats.rx_fifo_errors++;
- if (status & PCIErr) {
- u16 pci_cmd_status;
- pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status);
- pci_write_config_word (tp->pci_dev, PCI_STATUS, pci_cmd_status);
-
- printk (KERN_ERR "%s: PCI Bus error %4.4x.\n",
- dev->name, pci_cmd_status);
- }
-}
-
-
-/* The interrupt handler does all of the Rx thread work and cleans up
- after the Tx thread. */
-static void rtl8139_interrupt (int irq, void *dev_instance,
- struct pt_regs *regs)
-{
- struct net_device *dev = (struct net_device *) dev_instance;
- struct rtl8139_private *tp = dev->priv;
- int boguscnt = max_interrupt_work;
- void *ioaddr = tp->mmio_addr;
- int ackstat, status;
- int link_changed = 0; /* avoid bogus "uninit" warning */
-
- spin_lock (&tp->lock);
-
- do {
- status = RTL_R16 (IntrStatus);
-
- /* h/w no longer present (hotplug?) or major error, bail */
- if (status == 0xFFFF)
- break;
-
- if ((status &
- (PCIErr | PCSTimeout | RxUnderrun | RxOverflow |
- RxFIFOOver | TxErr | TxOK | RxErr | RxOK)) == 0)
- break;
-
- /* Acknowledge all of the current interrupt sources ASAP, but
- an first get an additional status bit from CSCR. */
- if (status & RxUnderrun)
- link_changed = RTL_R16 (CSCR) & CSCR_LinkChangeBit;
-
- /* The chip takes special action when we clear RxAckBits,
- * so we clear them later in rtl8139_rx_interrupt
- */
- ackstat = status & ~(RxAckBits | TxErr);
- RTL_W16 (IntrStatus, ackstat);
-
- DPRINTK ("%s: interrupt status=%#4.4x ackstat=%#4.4x new intstat=%#4.4x.\n",
- dev->name, ackstat, status, RTL_R16 (IntrStatus));
-
- if (netif_running (dev) && (status & RxAckBits))
- rtl8139_rx_interrupt (dev, tp, ioaddr);
-
- /* Check uncommon events with one test. */
- if (status & (PCIErr | PCSTimeout | RxUnderrun | RxOverflow |
- RxFIFOOver | RxErr))
- rtl8139_weird_interrupt (dev, tp, ioaddr,
- status, link_changed);
-
- if (netif_running (dev) && (status & (TxOK | TxErr))) {
- rtl8139_tx_interrupt (dev, tp, ioaddr);
- if (status & TxErr)
- RTL_W16 (IntrStatus, TxErr);
- }
-
- boguscnt--;
- } while (boguscnt > 0);
-
- if (boguscnt <= 0) {
- printk (KERN_WARNING "%s: Too much work at interrupt, "
- "IntrStatus=0x%4.4x.\n", dev->name, status);
-
- /* Clear all interrupt sources. */
- RTL_W16 (IntrStatus, 0xffff);
- }
-
- spin_unlock (&tp->lock);
-
- DPRINTK ("%s: exiting interrupt, intr_status=%#4.4x.\n",
- dev->name, RTL_R16 (IntrStatus));
-}
-
-
-static int rtl8139_close (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
-#if 0
- int ret = 0;
-#endif
- unsigned long flags;
-
- netif_stop_queue (dev);
-
-#if 0
- if (tp->thr_pid >= 0) {
- tp->time_to_die = 1;
- wmb();
- ret = kill_proc (tp->thr_pid, SIGTERM, 1);
- if (ret) {
- printk (KERN_ERR "%s: unable to signal thread\n", dev->name);
- return ret;
- }
- wait_for_completion (&tp->thr_exited);
- }
-#else
- del_timer_sync(&tp->timer);
-#endif
-
- DPRINTK ("%s: Shutting down ethercard, status was 0x%4.4x.\n",
- dev->name, RTL_R16 (IntrStatus));
-
- spin_lock_irqsave (&tp->lock, flags);
-
- /* Stop the chip's Tx and Rx DMA processes. */
- RTL_W8 (ChipCmd, 0);
-
- /* Disable interrupts by clearing the interrupt mask. */
- RTL_W16 (IntrMask, 0);
-
- /* Update the error counts. */
- tp->stats.rx_missed_errors += RTL_R32 (RxMissed);
- RTL_W32 (RxMissed, 0);
-
- spin_unlock_irqrestore (&tp->lock, flags);
-
- synchronize_irq ();
- free_irq (dev->irq, dev);
-
- rtl8139_tx_clear (tp);
-
- pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
- tp->rx_ring, tp->rx_ring_dma);
- pci_free_consistent(tp->pci_dev, TX_BUF_TOT_LEN,
- tp->tx_bufs, tp->tx_bufs_dma);
- tp->rx_ring = NULL;
- tp->tx_bufs = NULL;
-
- /* Green! Put the chip in low-power mode. */
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
-
- if (rtl_chip_info[tp->chipset].flags & HasHltClk)
- RTL_W8 (HltClk, 'H'); /* 'R' would leave the clock running. */
-
- return 0;
-}
-
-
-/* Get the ethtool Wake-on-LAN settings. Assumes that wol points to
- kernel memory, *wol has been initialized as {ETHTOOL_GWOL}, and
- other threads or interrupts aren't messing with the 8139. */
-static void netdev_get_wol (struct net_device *dev, struct ethtool_wolinfo *wol)
-{
- struct rtl8139_private *np = dev->priv;
- void *ioaddr = np->mmio_addr;
-
- if (rtl_chip_info[np->chipset].flags & HasLWake) {
- u8 cfg3 = RTL_R8 (Config3);
- u8 cfg5 = RTL_R8 (Config5);
-
- wol->supported = WAKE_PHY | WAKE_MAGIC
- | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST;
-
- wol->wolopts = 0;
- if (cfg3 & Cfg3_LinkUp)
- wol->wolopts |= WAKE_PHY;
- if (cfg3 & Cfg3_Magic)
- wol->wolopts |= WAKE_MAGIC;
- /* (KON)FIXME: See how netdev_set_wol() handles the
- following constants. */
- if (cfg5 & Cfg5_UWF)
- wol->wolopts |= WAKE_UCAST;
- if (cfg5 & Cfg5_MWF)
- wol->wolopts |= WAKE_MCAST;
- if (cfg5 & Cfg5_BWF)
- wol->wolopts |= WAKE_BCAST;
- }
-}
-
-
-/* Set the ethtool Wake-on-LAN settings. Return 0 or -errno. Assumes
- that wol points to kernel memory and other threads or interrupts
- aren't messing with the 8139. */
-static int netdev_set_wol (struct net_device *dev,
- const struct ethtool_wolinfo *wol)
-{
- struct rtl8139_private *np = dev->priv;
- void *ioaddr = np->mmio_addr;
- u32 support;
- u8 cfg3, cfg5;
-
- support = ((rtl_chip_info[np->chipset].flags & HasLWake)
- ? (WAKE_PHY | WAKE_MAGIC
- | WAKE_UCAST | WAKE_MCAST | WAKE_BCAST)
- : 0);
- if (wol->wolopts & ~support)
- return -EINVAL;
-
- cfg3 = RTL_R8 (Config3) & ~(Cfg3_LinkUp | Cfg3_Magic);
- if (wol->wolopts & WAKE_PHY)
- cfg3 |= Cfg3_LinkUp;
- if (wol->wolopts & WAKE_MAGIC)
- cfg3 |= Cfg3_Magic;
- RTL_W8 (Cfg9346, Cfg9346_Unlock);
- RTL_W8 (Config3, cfg3);
- RTL_W8 (Cfg9346, Cfg9346_Lock);
-
- cfg5 = RTL_R8 (Config5) & ~(Cfg5_UWF | Cfg5_MWF | Cfg5_BWF);
- /* (KON)FIXME: These are untested. We may have to set the
- CRC0, Wakeup0 and LSBCRC0 registers too, but I have no
- documentation. */
- if (wol->wolopts & WAKE_UCAST)
- cfg5 |= Cfg5_UWF;
- if (wol->wolopts & WAKE_MCAST)
- cfg5 |= Cfg5_MWF;
- if (wol->wolopts & WAKE_BCAST)
- cfg5 |= Cfg5_BWF;
- RTL_W8 (Config5, cfg5); /* need not unlock via Cfg9346 */
-
- return 0;
-}
-
-#if 0
-static int netdev_ethtool_ioctl (struct net_device *dev, void *useraddr)
-{
- struct rtl8139_private *np = dev->priv;
- u32 ethcmd;
-
- /* dev_ioctl() in ../../net/core/dev.c has already checked
- capable(CAP_NET_ADMIN), so don't bother with that here. */
-
- if (get_user(ethcmd, (u32 *)useraddr))
- return -EFAULT;
-
- switch (ethcmd) {
-
- case ETHTOOL_GDRVINFO: {
- struct ethtool_drvinfo info = { ETHTOOL_GDRVINFO };
- strcpy (info.driver, DRV_NAME);
- strcpy (info.version, DRV_VERSION);
- strcpy (info.bus_info, np->pci_dev->slot_name);
- info.regdump_len = np->regs_len;
- if (copy_to_user (useraddr, &info, sizeof (info)))
- return -EFAULT;
- return 0;
- }
-
- /* get settings */
- case ETHTOOL_GSET: {
- struct ethtool_cmd ecmd = { ETHTOOL_GSET };
- spin_lock_irq(&np->lock);
- mii_ethtool_gset(&np->mii, &ecmd);
- spin_unlock_irq(&np->lock);
- if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
- return -EFAULT;
- return 0;
- }
- /* set settings */
- case ETHTOOL_SSET: {
- int r;
- struct ethtool_cmd ecmd;
- if (copy_from_user(&ecmd, useraddr, sizeof(ecmd)))
- return -EFAULT;
- spin_lock_irq(&np->lock);
- r = mii_ethtool_sset(&np->mii, &ecmd);
- spin_unlock_irq(&np->lock);
- return r;
- }
- /* restart autonegotiation */
- case ETHTOOL_NWAY_RST: {
- return mii_nway_restart(&np->mii);
- }
- /* get link status */
- case ETHTOOL_GLINK: {
- struct ethtool_value edata = {ETHTOOL_GLINK};
- edata.data = mii_link_ok(&np->mii);
- if (copy_to_user(useraddr, &edata, sizeof(edata)))
- return -EFAULT;
- return 0;
- }
-
- /* get message-level */
- case ETHTOOL_GMSGLVL: {
- struct ethtool_value edata = {ETHTOOL_GMSGLVL};
- edata.data = debug;
- if (copy_to_user(useraddr, &edata, sizeof(edata)))
- return -EFAULT;
- return 0;
- }
- /* set message-level */
- case ETHTOOL_SMSGLVL: {
- struct ethtool_value edata;
- if (copy_from_user(&edata, useraddr, sizeof(edata)))
- return -EFAULT;
- debug = edata.data;
- return 0;
- }
-
- case ETHTOOL_GWOL:
- {
- struct ethtool_wolinfo wol = { ETHTOOL_GWOL };
- spin_lock_irq (&np->lock);
- netdev_get_wol (dev, &wol);
- spin_unlock_irq (&np->lock);
- if (copy_to_user (useraddr, &wol, sizeof (wol)))
- return -EFAULT;
- return 0;
- }
-
- case ETHTOOL_SWOL:
- {
- struct ethtool_wolinfo wol;
- int rc;
- if (copy_from_user (&wol, useraddr, sizeof (wol)))
- return -EFAULT;
- spin_lock_irq (&np->lock);
- rc = netdev_set_wol (dev, &wol);
- spin_unlock_irq (&np->lock);
- return rc;
- }
-
-/* TODO: we are too slack to do reg dumping for pio, for now */
-#ifndef CONFIG_8139TOO_PIO
- /* NIC register dump */
- case ETHTOOL_GREGS: {
- struct ethtool_regs regs;
- unsigned int regs_len = np->regs_len;
- u8 *regbuf = kmalloc(regs_len, GFP_KERNEL);
- int rc;
-
- if (!regbuf)
- return -ENOMEM;
- memset(regbuf, 0, regs_len);
-
- rc = copy_from_user(®s, useraddr, sizeof(regs));
- if (rc) {
- rc = -EFAULT;
- goto err_out_gregs;
- }
-
- if (regs.len > regs_len)
- regs.len = regs_len;
- if (regs.len < regs_len) {
- rc = -EINVAL;
- goto err_out_gregs;
- }
-
- regs.version = RTL_REGS_VER;
- rc = copy_to_user(useraddr, ®s, sizeof(regs));
- if (rc) {
- rc = -EFAULT;
- goto err_out_gregs;
- }
-
- useraddr += offsetof(struct ethtool_regs, data);
-
- spin_lock_irq(&np->lock);
- memcpy_fromio(regbuf, np->mmio_addr, regs_len);
- spin_unlock_irq(&np->lock);
-
- if (copy_to_user(useraddr, regbuf, regs_len))
- rc = -EFAULT;
-
-err_out_gregs:
- kfree(regbuf);
- return rc;
- }
-#endif /* CONFIG_8139TOO_PIO */
-
- /* get string list(s) */
- case ETHTOOL_GSTRINGS: {
- struct ethtool_gstrings estr = { ETHTOOL_GSTRINGS };
-
- if (copy_from_user(&estr, useraddr, sizeof(estr)))
- return -EFAULT;
- if (estr.string_set != ETH_SS_STATS)
- return -EINVAL;
-
- estr.len = RTL_NUM_STATS;
- if (copy_to_user(useraddr, &estr, sizeof(estr)))
- return -EFAULT;
- if (copy_to_user(useraddr + sizeof(estr),
- ðtool_stats_keys,
- sizeof(ethtool_stats_keys)))
- return -EFAULT;
- return 0;
- }
-
- /* get NIC-specific statistics */
- case ETHTOOL_GSTATS: {
- struct ethtool_stats estats = { ETHTOOL_GSTATS };
- u64 *tmp_stats;
- const unsigned int sz = sizeof(u64) * RTL_NUM_STATS;
- int i;
-
- estats.n_stats = RTL_NUM_STATS;
- if (copy_to_user(useraddr, &estats, sizeof(estats)))
- return -EFAULT;
-
- tmp_stats = kmalloc(sz, GFP_KERNEL);
- if (!tmp_stats)
- return -ENOMEM;
- memset(tmp_stats, 0, sz);
-
- i = 0;
- tmp_stats[i++] = np->xstats.early_rx;
- tmp_stats[i++] = np->xstats.tx_buf_mapped;
- tmp_stats[i++] = np->xstats.tx_timeouts;
- tmp_stats[i++] = np->xstats.rx_lost_in_ring;
- if (i != RTL_NUM_STATS)
- BUG();
-
- i = copy_to_user(useraddr + sizeof(estats), tmp_stats, sz);
- kfree(tmp_stats);
-
- if (i)
- return -EFAULT;
- return 0;
- }
- default:
- break;
- }
-
- return -EOPNOTSUPP;
-}
-
-
-static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct rtl8139_private *np = dev->priv;
- struct mii_ioctl_data *data = (struct mii_ioctl_data *) & rq->ifr_data;
- int rc;
-
- if (!netif_running(dev))
- return -EINVAL;
-
- if (cmd == SIOCETHTOOL)
- rc = netdev_ethtool_ioctl(dev, (void *) rq->ifr_data);
-
- else {
- spin_lock_irq(&np->lock);
- rc = generic_mii_ioctl(&np->mii, data, cmd, NULL);
- spin_unlock_irq(&np->lock);
- }
-
- return rc;
-}
-#endif
-
-
-static struct net_device_stats *rtl8139_get_stats (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- unsigned long flags;
-
- if (netif_running(dev)) {
- spin_lock_irqsave (&tp->lock, flags);
- tp->stats.rx_missed_errors += RTL_R32 (RxMissed);
- RTL_W32 (RxMissed, 0);
- spin_unlock_irqrestore (&tp->lock, flags);
- }
-
- return &tp->stats;
-}
-
-/* Set or clear the multicast filter for this adaptor.
- This routine is not state sensitive and need not be SMP locked. */
-
-static void __set_rx_mode (struct net_device *dev)
-{
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- u32 mc_filter[2]; /* Multicast hash filter */
- int i, rx_mode;
- u32 tmp;
-
- DPRINTK ("%s: rtl8139_set_rx_mode(%4.4x) done -- Rx config %8.8lx.\n",
- dev->name, dev->flags, RTL_R32 (RxConfig));
-
- /* Note: do not reorder, GCC is clever about common statements. */
- if (dev->flags & IFF_PROMISC) {
- /* Unconditionally log net taps. */
- printk (KERN_NOTICE "%s: Promiscuous mode enabled.\n",
- dev->name);
- rx_mode =
- AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
- AcceptAllPhys;
- mc_filter[1] = mc_filter[0] = 0xffffffff;
- } else if ((dev->mc_count > multicast_filter_limit)
- || (dev->flags & IFF_ALLMULTI)) {
- /* Too many to filter perfectly -- accept all multicasts. */
- rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
- mc_filter[1] = mc_filter[0] = 0xffffffff;
- } else {
- struct dev_mc_list *mclist;
- rx_mode = AcceptBroadcast | AcceptMyPhys;
- mc_filter[1] = mc_filter[0] = 0;
- for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
- i++, mclist = mclist->next) {
- int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
-
- mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
- rx_mode |= AcceptMulticast;
- }
- }
-
- /* We can safely update without stopping the chip. */
- tmp = rtl8139_rx_config | rx_mode;
- if (tp->rx_config != tmp) {
- RTL_W32_F (RxConfig, tmp);
- tp->rx_config = tmp;
- }
- RTL_W32_F (MAR0 + 0, mc_filter[0]);
- RTL_W32_F (MAR0 + 4, mc_filter[1]);
-}
-
-static void rtl8139_set_rx_mode (struct net_device *dev)
-{
- unsigned long flags;
- struct rtl8139_private *tp = dev->priv;
-
- spin_lock_irqsave (&tp->lock, flags);
- __set_rx_mode(dev);
- spin_unlock_irqrestore (&tp->lock, flags);
-}
-
-#ifdef CONFIG_PM
-
-static int rtl8139_suspend (struct pci_dev *pdev, u32 state)
-{
- struct net_device *dev = pci_get_drvdata (pdev);
- struct rtl8139_private *tp = dev->priv;
- void *ioaddr = tp->mmio_addr;
- unsigned long flags;
-
- if (!netif_running (dev))
- return 0;
-
- netif_device_detach (dev);
-
- spin_lock_irqsave (&tp->lock, flags);
-
- /* Disable interrupts, stop Tx and Rx. */
- RTL_W16 (IntrMask, 0);
- RTL_W8 (ChipCmd, 0);
-
- /* Update the error counts. */
- tp->stats.rx_missed_errors += RTL_R32 (RxMissed);
- RTL_W32 (RxMissed, 0);
-
- spin_unlock_irqrestore (&tp->lock, flags);
- return 0;
-}
-
-
-static int rtl8139_resume (struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata (pdev);
-
- if (!netif_running (dev))
- return 0;
- netif_device_attach (dev);
- rtl8139_hw_start (dev);
- return 0;
-}
-
-#endif /* CONFIG_PM */
-
-
-static struct pci_driver rtl8139_pci_driver = {
- .name = DRV_NAME,
- .id_table = rtl8139_pci_tbl,
- .probe = rtl8139_init_one,
- .remove = __devexit_p(rtl8139_remove_one),
-#ifdef CONFIG_PM
- .suspend = rtl8139_suspend,
- .resume = rtl8139_resume,
-#endif /* CONFIG_PM */
-};
-
-
-static int __init rtl8139_init_module (void)
-{
- /* when we're a module, we always print a version message,
- * even if no 8139 board is found.
- */
-#ifdef MODULE
- printk (KERN_INFO RTL8139_DRIVER_NAME "\n");
-#endif
-
- return pci_module_init (&rtl8139_pci_driver);
-}
-
-
-static void __exit rtl8139_cleanup_module (void)
-{
- pci_unregister_driver (&rtl8139_pci_driver);
-}
-
-
-module_init(rtl8139_init_module);
-module_exit(rtl8139_cleanup_module);
+++ /dev/null
-/* via-rhine.c: A Linux Ethernet device driver for VIA Rhine family chips. */
-/*
- Written 1998-2001 by Donald Becker.
-
- This software may be used and distributed according to the terms of
- the GNU General Public License (GPL), incorporated herein by reference.
- Drivers based on or derived from this code fall under the GPL and must
- retain the authorship, copyright and license notice. This file is not
- a complete program and may only be used when the entire operating
- system is licensed under the GPL.
-
- This driver is designed for the VIA VT86C100A Rhine-I.
- It also works with the 6102 Rhine-II, and 6105/6105M Rhine-III.
-
- The author may be reached as becker@scyld.com, or C/O
- Scyld Computing Corporation
- 410 Severn Ave., Suite 210
- Annapolis MD 21403
-
-
- This driver contains some changes from the original Donald Becker
- version. He may or may not be interested in bug reports on this
- code. You can find his versions at:
- http://www.scyld.com/network/via-rhine.html
-
-
- Linux kernel version history:
-
- LK1.1.0:
- - Jeff Garzik: softnet 'n stuff
-
- LK1.1.1:
- - Justin Guyett: softnet and locking fixes
- - Jeff Garzik: use PCI interface
-
- LK1.1.2:
- - Urban Widmark: minor cleanups, merges from Becker 1.03a/1.04 versions
-
- LK1.1.3:
- - Urban Widmark: use PCI DMA interface (with thanks to the eepro100.c
- code) update "Theory of Operation" with
- softnet/locking changes
- - Dave Miller: PCI DMA and endian fixups
- - Jeff Garzik: MOD_xxx race fixes, updated PCI resource allocation
-
- LK1.1.4:
- - Urban Widmark: fix gcc 2.95.2 problem and
- remove writel's to fixed address 0x7c
-
- LK1.1.5:
- - Urban Widmark: mdio locking, bounce buffer changes
- merges from Beckers 1.05 version
- added netif_running_on/off support
-
- LK1.1.6:
- - Urban Widmark: merges from Beckers 1.08b version (VT6102 + mdio)
- set netif_running_on/off on startup, del_timer_sync
-
- LK1.1.7:
- - Manfred Spraul: added reset into tx_timeout
-
- LK1.1.9:
- - Urban Widmark: merges from Beckers 1.10 version
- (media selection + eeprom reload)
- - David Vrabel: merges from D-Link "1.11" version
- (disable WOL and PME on startup)
-
- LK1.1.10:
- - Manfred Spraul: use "singlecopy" for unaligned buffers
- don't allocate bounce buffers for !ReqTxAlign cards
-
- LK1.1.11:
- - David Woodhouse: Set dev->base_addr before the first time we call
- wait_for_reset(). It's a lot happier that way.
- Free np->tx_bufs only if we actually allocated it.
-
- LK1.1.12:
- - Martin Eriksson: Allow Memory-Mapped IO to be enabled.
-
- LK1.1.13 (jgarzik):
- - Add ethtool support
- - Replace some MII-related magic numbers with constants
-
- LK1.1.14 (Ivan G.):
- - fixes comments for Rhine-III
- - removes W_MAX_TIMEOUT (unused)
- - adds HasDavicomPhy for Rhine-I (basis: linuxfet driver; my card
- is R-I and has Davicom chip, flag is referenced in kernel driver)
- - sends chip_id as a parameter to wait_for_reset since np is not
- initialized on first call
- - changes mmio "else if (chip_id==VT6102)" to "else" so it will work
- for Rhine-III's (documentation says same bit is correct)
- - transmit frame queue message is off by one - fixed
- - adds IntrNormalSummary to "Something Wicked" exclusion list
- so normal interrupts will not trigger the message (src: Donald Becker)
- (Roger Luethi)
- - show confused chip where to continue after Tx error
- - location of collision counter is chip specific
- - allow selecting backoff algorithm (module parameter)
-
- LK1.1.15 (jgarzik):
- - Use new MII lib helper generic_mii_ioctl
-
- LK1.1.16 (Roger Luethi)
- - Etherleak fix
- - Handle Tx buffer underrun
- - Fix bugs in full duplex handling
- - New reset code uses "force reset" cmd on Rhine-II
- - Various clean ups
-
- LK1.1.17 (Roger Luethi)
- - Fix race in via_rhine_start_tx()
- - On errors, wait for Tx engine to turn off before scavenging
- - Handle Tx descriptor write-back race on Rhine-II
- - Force flushing for PCI posted writes
- - More reset code changes
-
-*/
-
-#define DRV_NAME "via-rhine"
-#define DRV_VERSION "1.1.17"
-#define DRV_RELDATE "March-1-2003"
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/mii.h>
-#include <linux/ethtool.h>
-#include <linux/crc32.h>
-#include <asm/processor.h> /* Processor type for cache alignment. */
-#include <asm/bitops.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-
-#undef RX_RING_SIZE
-#undef TX_RING_SIZE
-
-/* A few user-configurable values.
- These may be modified when a driver module is loaded. */
-
-static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */
-static int max_interrupt_work = 20;
-
-/* Set the copy breakpoint for the copy-only-tiny-frames scheme.
- Setting to > 1518 effectively disables this feature. */
-static int rx_copybreak;
-
-/* Select a backoff algorithm (Ethernet capture effect) */
-static int backoff;
-
-/* Used to pass the media type, etc.
- Both 'options[]' and 'full_duplex[]' should exist for driver
- interoperability.
- The media type is usually passed in 'options[]'.
- The default is autonegotation for speed and duplex.
- This should rarely be overridden.
- Use option values 0x10/0x20 for 10Mbps, 0x100,0x200 for 100Mbps.
- Use option values 0x10 and 0x100 for forcing half duplex fixed speed.
- Use option values 0x20 and 0x200 for forcing full duplex operation.
-*/
-#define MAX_UNITS 8 /* More are supported, limit only on options */
-static int options[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-static int full_duplex[MAX_UNITS] = {-1, -1, -1, -1, -1, -1, -1, -1};
-
-/* Maximum number of multicast addresses to filter (vs. rx-all-multicast).
- The Rhine has a 64 element 8390-like hash table. */
-static const int multicast_filter_limit = 32;
-
-
-/* Operational parameters that are set at compile time. */
-
-/* Keep the ring sizes a power of two for compile efficiency.
- The compiler will convert <unsigned>'%'<2^N> into a bit mask.
- Making the Tx ring too large decreases the effectiveness of channel
- bonding and packet priority.
- There are no ill effects from too-large receive rings. */
-#define TX_RING_SIZE 16
-#define TX_QUEUE_LEN 10 /* Limit ring entries actually used. */
-#define RX_RING_SIZE 16
-
-
-/* Operational parameters that usually are not changed. */
-
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT (2*HZ)
-
-#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer.*/
-
-#if !defined(__OPTIMIZE__) || !defined(__KERNEL__)
-#warning You must compile this file with the correct options!
-#warning See the last lines of the source file.
-#error You must compile this driver with "-O".
-#endif
-
-/* These identify the driver base version and may not be removed. */
-static char version[] __devinitdata =
-KERN_INFO DRV_NAME ".c:v1.10-LK" DRV_VERSION " " DRV_RELDATE " Written by Donald Becker\n"
-KERN_INFO " http://www.scyld.com/network/via-rhine.html\n";
-
-static char shortname[] = DRV_NAME;
-
-
-/* This driver was written to use PCI memory space, however most versions
- of the Rhine only work correctly with I/O space accesses. */
-#ifdef CONFIG_VIA_RHINE_MMIO
-#define USE_MEM
-#else
-#define USE_IO
-#undef readb
-#undef readw
-#undef readl
-#undef writeb
-#undef writew
-#undef writel
-#define readb inb
-#define readw inw
-#define readl inl
-#define writeb outb
-#define writew outw
-#define writel outl
-#endif
-
-MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
-MODULE_DESCRIPTION("VIA Rhine PCI Fast Ethernet driver");
-MODULE_LICENSE("GPL");
-
-MODULE_PARM(max_interrupt_work, "i");
-MODULE_PARM(debug, "i");
-MODULE_PARM(rx_copybreak, "i");
-MODULE_PARM(backoff, "i");
-MODULE_PARM(options, "1-" __MODULE_STRING(MAX_UNITS) "i");
-MODULE_PARM(full_duplex, "1-" __MODULE_STRING(MAX_UNITS) "i");
-MODULE_PARM_DESC(max_interrupt_work, "VIA Rhine maximum events handled per interrupt");
-MODULE_PARM_DESC(debug, "VIA Rhine debug level (0-7)");
-MODULE_PARM_DESC(rx_copybreak, "VIA Rhine copy breakpoint for copy-only-tiny-frames");
-MODULE_PARM_DESC(backoff, "VIA Rhine: Bits 0-3: backoff algorithm");
-MODULE_PARM_DESC(options, "VIA Rhine: Bits 0-3: media type, bit 17: full duplex");
-MODULE_PARM_DESC(full_duplex, "VIA Rhine full duplex setting(s) (1)");
-
-/*
- Theory of Operation
-
-I. Board Compatibility
-
-This driver is designed for the VIA 86c100A Rhine-II PCI Fast Ethernet
-controller.
-
-II. Board-specific settings
-
-Boards with this chip are functional only in a bus-master PCI slot.
-
-Many operational settings are loaded from the EEPROM to the Config word at
-offset 0x78. For most of these settings, this driver assumes that they are
-correct.
-If this driver is compiled to use PCI memory space operations the EEPROM
-must be configured to enable memory ops.
-
-III. Driver operation
-
-IIIa. Ring buffers
-
-This driver uses two statically allocated fixed-size descriptor lists
-formed into rings by a branch from the final descriptor to the beginning of
-the list. The ring sizes are set at compile time by RX/TX_RING_SIZE.
-
-IIIb/c. Transmit/Receive Structure
-
-This driver attempts to use a zero-copy receive and transmit scheme.
-
-Alas, all data buffers are required to start on a 32 bit boundary, so
-the driver must often copy transmit packets into bounce buffers.
-
-The driver allocates full frame size skbuffs for the Rx ring buffers at
-open() time and passes the skb->data field to the chip as receive data
-buffers. When an incoming frame is less than RX_COPYBREAK bytes long,
-a fresh skbuff is allocated and the frame is copied to the new skbuff.
-When the incoming frame is larger, the skbuff is passed directly up the
-protocol stack. Buffers consumed this way are replaced by newly allocated
-skbuffs in the last phase of via_rhine_rx().
-
-The RX_COPYBREAK value is chosen to trade-off the memory wasted by
-using a full-sized skbuff for small frames vs. the copying costs of larger
-frames. New boards are typically used in generously configured machines
-and the underfilled buffers have negligible impact compared to the benefit of
-a single allocation size, so the default value of zero results in never
-copying packets. When copying is done, the cost is usually mitigated by using
-a combined copy/checksum routine. Copying also preloads the cache, which is
-most useful with small frames.
-
-Since the VIA chips are only able to transfer data to buffers on 32 bit
-boundaries, the IP header at offset 14 in an ethernet frame isn't
-longword aligned for further processing. Copying these unaligned buffers
-has the beneficial effect of 16-byte aligning the IP header.
-
-IIId. Synchronization
-
-The driver runs as two independent, single-threaded flows of control. One
-is the send-packet routine, which enforces single-threaded use by the
-dev->priv->lock spinlock. The other thread is the interrupt handler, which
-is single threaded by the hardware and interrupt handling software.
-
-The send packet thread has partial control over the Tx ring. It locks the
-dev->priv->lock whenever it's queuing a Tx packet. If the next slot in the ring
-is not available it stops the transmit queue by calling netif_stop_queue.
-
-The interrupt handler has exclusive control over the Rx ring and records stats
-from the Tx ring. After reaping the stats, it marks the Tx queue entry as
-empty by incrementing the dirty_tx mark. If at least half of the entries in
-the Rx ring are available the transmit queue is woken up if it was stopped.
-
-IV. Notes
-
-IVb. References
-
-Preliminary VT86C100A manual from http://www.via.com.tw/
-http://www.scyld.com/expert/100mbps.html
-http://www.scyld.com/expert/NWay.html
-ftp://ftp.via.com.tw/public/lan/Products/NIC/VT86C100A/Datasheet/VT86C100A03.pdf
-ftp://ftp.via.com.tw/public/lan/Products/NIC/VT6102/Datasheet/VT6102_021.PDF
-
-
-IVc. Errata
-
-The VT86C100A manual is not reliable information.
-The 3043 chip does not handle unaligned transmit or receive buffers, resulting
-in significant performance degradation for bounce buffer copies on transmit
-and unaligned IP headers on receive.
-The chip does not pad to minimum transmit length.
-
-*/
-
-
-/* This table drives the PCI probe routines. It's mostly boilerplate in all
- of the drivers, and will likely be provided by some future kernel.
- Note the matching code -- the first table entry matchs all 56** cards but
- second only the 1234 card.
-*/
-
-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,
-};
-
-enum via_rhine_chips {
- VT86C100A = 0,
- VT6102,
- VT6105,
- VT6105M
-};
-
-struct via_rhine_chip_info {
- const char *name;
- u16 pci_flags;
- int io_size;
- int drv_flags;
-};
-
-
-enum chip_capability_flags {
- CanHaveMII=1, HasESIPhy=2, HasDavicomPhy=4,
- ReqTxAlign=0x10, HasWOL=0x20, };
-
-#ifdef USE_MEM
-#define RHINE_IOTYPE (PCI_USES_MEM | PCI_USES_MASTER | PCI_ADDR1)
-#else
-#define RHINE_IOTYPE (PCI_USES_IO | PCI_USES_MASTER | PCI_ADDR0)
-#endif
-/* Beware of PCI posted writes */
-#define IOSYNC do { readb(dev->base_addr + StationAddr); } while (0)
-
-/* directly indexed by enum via_rhine_chips, above */
-static struct via_rhine_chip_info via_rhine_chip_info[] __devinitdata =
-{
- { "VIA VT86C100A Rhine", RHINE_IOTYPE, 128,
- CanHaveMII | ReqTxAlign | HasDavicomPhy },
- { "VIA VT6102 Rhine-II", RHINE_IOTYPE, 256,
- CanHaveMII | HasWOL },
- { "VIA VT6105 Rhine-III", RHINE_IOTYPE, 256,
- CanHaveMII | HasWOL },
- { "VIA VT6105M Rhine-III", RHINE_IOTYPE, 256,
- CanHaveMII | HasWOL },
-};
-
-static struct pci_device_id via_rhine_pci_tbl[] __devinitdata =
-{
- {0x1106, 0x3043, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VT86C100A},
- {0x1106, 0x3065, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VT6102},
- {0x1106, 0x3106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VT6105},
- {0x1106, 0x3053, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VT6105M},
- {0,} /* terminate list */
-};
-MODULE_DEVICE_TABLE(pci, via_rhine_pci_tbl);
-
-
-/* Offsets to the device registers. */
-enum register_offsets {
- StationAddr=0x00, RxConfig=0x06, TxConfig=0x07, ChipCmd=0x08,
- IntrStatus=0x0C, IntrEnable=0x0E,
- MulticastFilter0=0x10, MulticastFilter1=0x14,
- RxRingPtr=0x18, TxRingPtr=0x1C, GFIFOTest=0x54,
- MIIPhyAddr=0x6C, MIIStatus=0x6D, PCIBusConfig=0x6E,
- MIICmd=0x70, MIIRegAddr=0x71, MIIData=0x72, MACRegEEcsr=0x74,
- ConfigA=0x78, ConfigB=0x79, ConfigC=0x7A, ConfigD=0x7B,
- RxMissed=0x7C, RxCRCErrs=0x7E, MiscCmd=0x81,
- StickyHW=0x83, IntrStatus2=0x84, WOLcrClr=0xA4, WOLcgClr=0xA7,
- PwrcsrClr=0xAC,
-};
-
-/* Bits in ConfigD */
-enum backoff_bits {
- BackOptional=0x01, BackModify=0x02,
- BackCaptureEffect=0x04, BackRandom=0x08
-};
-
-#ifdef USE_MEM
-/* Registers we check that mmio and reg are the same. */
-int mmio_verify_registers[] = {
- RxConfig, TxConfig, IntrEnable, ConfigA, ConfigB, ConfigC, ConfigD,
- 0
-};
-#endif
-
-/* Bits in the interrupt status/mask registers. */
-enum intr_status_bits {
- IntrRxDone=0x0001, IntrRxErr=0x0004, IntrRxEmpty=0x0020,
- IntrTxDone=0x0002, IntrTxError=0x0008, IntrTxUnderrun=0x0210,
- IntrPCIErr=0x0040,
- IntrStatsMax=0x0080, IntrRxEarly=0x0100,
- IntrRxOverflow=0x0400, IntrRxDropped=0x0800, IntrRxNoBuf=0x1000,
- IntrTxAborted=0x2000, IntrLinkChange=0x4000,
- IntrRxWakeUp=0x8000,
- IntrNormalSummary=0x0003, IntrAbnormalSummary=0xC260,
- IntrTxDescRace=0x080000, /* mapped from IntrStatus2 */
- IntrTxErrSummary=0x082210,
-};
-
-/* The Rx and Tx buffer descriptors. */
-struct rx_desc {
- s32 rx_status;
- u32 desc_length; /* Chain flag, Buffer/frame length */
- u32 addr;
- u32 next_desc;
-};
-struct tx_desc {
- s32 tx_status;
- u32 desc_length; /* Chain flag, Tx Config, Frame length */
- u32 addr;
- u32 next_desc;
-};
-
-/* Initial value for tx_desc.desc_length, Buffer size goes to bits 0-10 */
-#define TXDESC 0x00e08000
-
-enum rx_status_bits {
- RxOK=0x8000, RxWholePkt=0x0300, RxErr=0x008F
-};
-
-/* Bits in *_desc.*_status */
-enum desc_status_bits {
- DescOwn=0x80000000
-};
-
-/* Bits in ChipCmd. */
-enum chip_cmd_bits {
- CmdInit=0x0001, CmdStart=0x0002, CmdStop=0x0004, CmdRxOn=0x0008,
- CmdTxOn=0x0010, CmdTxDemand=0x0020, CmdRxDemand=0x0040,
- CmdEarlyRx=0x0100, CmdEarlyTx=0x0200, CmdFDuplex=0x0400,
- CmdNoTxPoll=0x0800, CmdReset=0x8000,
-};
-
-#define MAX_MII_CNT 4
-struct netdev_private {
- /* Descriptor rings */
- struct rx_desc *rx_ring;
- struct tx_desc *tx_ring;
- dma_addr_t rx_ring_dma;
- dma_addr_t tx_ring_dma;
-
- /* The addresses of receive-in-place skbuffs. */
- struct sk_buff *rx_skbuff[RX_RING_SIZE];
- dma_addr_t rx_skbuff_dma[RX_RING_SIZE];
-
- /* The saved address of a sent-in-place packet/buffer, for later free(). */
- struct sk_buff *tx_skbuff[TX_RING_SIZE];
- dma_addr_t tx_skbuff_dma[TX_RING_SIZE];
-
- /* Tx bounce buffers */
- unsigned char *tx_buf[TX_RING_SIZE];
- unsigned char *tx_bufs;
- dma_addr_t tx_bufs_dma;
-
- struct pci_dev *pdev;
- struct net_device_stats stats;
- struct timer_list timer; /* Media monitoring timer. */
- spinlock_t lock;
-
- /* Frequently used values: keep some adjacent for cache effect. */
- int chip_id, drv_flags;
- struct rx_desc *rx_head_desc;
- unsigned int cur_rx, dirty_rx; /* Producer/consumer ring indices */
- unsigned int cur_tx, dirty_tx;
- unsigned int rx_buf_sz; /* Based on MTU+slack. */
- u16 chip_cmd; /* Current setting for ChipCmd */
-
- /* These values are keep track of the transceiver/media in use. */
- unsigned int default_port:4; /* Last dev->if_port value. */
- u8 tx_thresh, rx_thresh;
-
- /* MII transceiver section. */
- unsigned char phys[MAX_MII_CNT]; /* MII device addresses. */
- unsigned int mii_cnt; /* number of MIIs found, but only the first one is used */
- u16 mii_status; /* last read MII status */
- struct mii_if_info mii_if;
-};
-
-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 via_rhine_open(struct net_device *dev);
-static void via_rhine_check_duplex(struct net_device *dev);
-static void via_rhine_timer(unsigned long data);
-static void via_rhine_tx_timeout(struct net_device *dev);
-static int via_rhine_start_tx(struct sk_buff *skb, struct net_device *dev);
-static void via_rhine_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
-static void via_rhine_tx(struct net_device *dev);
-static void via_rhine_rx(struct net_device *dev);
-static void via_rhine_error(struct net_device *dev, int intr_status);
-static void via_rhine_set_rx_mode(struct net_device *dev);
-static struct net_device_stats *via_rhine_get_stats(struct net_device *dev);
-#if 0
-static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-#endif
-static int via_rhine_close(struct net_device *dev);
-
-static inline u32 get_intr_status(struct net_device *dev)
-{
- long ioaddr = dev->base_addr;
- struct netdev_private *np = dev->priv;
- u32 intr_status;
-
- intr_status = readw(ioaddr + IntrStatus);
- /* On Rhine-II, Bit 3 indicates Tx descriptor write-back race. */
- if (np->chip_id == VT6102)
- intr_status |= readb(ioaddr + IntrStatus2) << 16;
- return intr_status;
-}
-
-static void wait_for_reset(struct net_device *dev, int chip_id, char *name)
-{
- long ioaddr = dev->base_addr;
- int boguscnt = 20;
-
- IOSYNC;
-
- if (readw(ioaddr + ChipCmd) & CmdReset) {
- printk(KERN_INFO "%s: Reset not complete yet. "
- "Trying harder.\n", name);
-
- /* Rhine-II needs to be forced sometimes */
- if (chip_id == VT6102)
- writeb(0x40, ioaddr + MiscCmd);
-
- /* VT86C100A may need long delay after reset (dlink) */
- /* Seen on Rhine-II as well (rl) */
- while ((readw(ioaddr + ChipCmd) & CmdReset) && --boguscnt)
- udelay(5);
-
- }
-
- if (debug > 1)
- printk(KERN_INFO "%s: Reset %s.\n", name,
- boguscnt ? "succeeded" : "failed");
-}
-
-#ifdef USE_MEM
-static void __devinit enable_mmio(long ioaddr, int chip_id)
-{
- int n;
- if (chip_id == VT86C100A) {
- /* More recent docs say that this bit is reserved ... */
- n = inb(ioaddr + ConfigA) | 0x20;
- outb(n, ioaddr + ConfigA);
- } else {
- n = inb(ioaddr + ConfigD) | 0x80;
- outb(n, ioaddr + ConfigD);
- }
-}
-#endif
-
-static void __devinit reload_eeprom(long ioaddr)
-{
- int i;
- outb(0x20, ioaddr + MACRegEEcsr);
- /* Typically 2 cycles to reload. */
- for (i = 0; i < 150; i++)
- if (! (inb(ioaddr + MACRegEEcsr) & 0x20))
- break;
-}
-
-static int __devinit via_rhine_init_one (struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- struct net_device *dev;
- struct netdev_private *np;
- int i, option;
- int chip_id = (int) ent->driver_data;
- static int card_idx = -1;
- long ioaddr;
- long memaddr;
- int io_size;
- int pci_flags;
-#ifdef USE_MEM
- long ioaddr0;
-#endif
-
-/* when built into the kernel, we only print version if device is found */
-#ifndef MODULE
- static int printed_version;
- if (!printed_version++)
- printk(version);
-#endif
-
- card_idx++;
- option = card_idx < MAX_UNITS ? options[card_idx] : 0;
- io_size = via_rhine_chip_info[chip_id].io_size;
- pci_flags = via_rhine_chip_info[chip_id].pci_flags;
-
- if (pci_enable_device (pdev))
- goto err_out;
-
- /* this should always be supported */
- if (pci_set_dma_mask(pdev, 0xffffffff)) {
- printk(KERN_ERR "32-bit PCI DMA addresses not supported by the card!?\n");
- goto err_out;
- }
-
- /* sanity check */
- if ((pci_resource_len (pdev, 0) < io_size) ||
- (pci_resource_len (pdev, 1) < io_size)) {
- printk (KERN_ERR "Insufficient PCI resources, aborting\n");
- goto err_out;
- }
-
- ioaddr = pci_resource_start (pdev, 0);
- memaddr = pci_resource_start (pdev, 1);
-
- if (pci_flags & PCI_USES_MASTER)
- pci_set_master (pdev);
-
- dev = alloc_etherdev(sizeof(*np));
- if (dev == NULL) {
- printk (KERN_ERR "init_ethernet failed for card #%d\n", card_idx);
- goto err_out;
- }
- SET_MODULE_OWNER(dev);
-
- if (pci_request_regions(pdev, shortname))
- goto err_out_free_netdev;
-
-#ifdef USE_MEM
- ioaddr0 = ioaddr;
- enable_mmio(ioaddr0, chip_id);
-
- ioaddr = (long) ioremap (memaddr, io_size);
- if (!ioaddr) {
- printk (KERN_ERR "ioremap failed for device %s, region 0x%X @ 0x%lX\n",
- pdev->slot_name, io_size, memaddr);
- goto err_out_free_res;
- }
-
- /* Check that selected MMIO registers match the PIO ones */
- i = 0;
- while (mmio_verify_registers[i]) {
- int reg = mmio_verify_registers[i++];
- unsigned char a = inb(ioaddr0+reg);
- unsigned char b = readb(ioaddr+reg);
- if (a != b) {
- printk (KERN_ERR "MMIO do not match PIO [%02x] (%02x != %02x)\n",
- reg, a, b);
- goto err_out_unmap;
- }
- }
-#endif
-
- /* D-Link provided reset code (with comment additions) */
- if (via_rhine_chip_info[chip_id].drv_flags & HasWOL) {
- unsigned char byOrgValue;
-
- /* clear sticky bit before reset & read ethernet address */
- byOrgValue = readb(ioaddr + StickyHW);
- byOrgValue = byOrgValue & 0xFC;
- writeb(byOrgValue, ioaddr + StickyHW);
-
- /* (bits written are cleared?) */
- /* disable force PME-enable */
- writeb(0x80, ioaddr + WOLcgClr);
- /* disable power-event config bit */
- writeb(0xFF, ioaddr + WOLcrClr);
- /* clear power status (undocumented in vt6102 docs?) */
- writeb(0xFF, ioaddr + PwrcsrClr);
- }
-
- /* Reset the chip to erase previous misconfiguration. */
- writew(CmdReset, ioaddr + ChipCmd);
-
- dev->base_addr = ioaddr;
- wait_for_reset(dev, chip_id, shortname);
-
- /* Reload the station address from the EEPROM. */
-#ifdef USE_IO
- reload_eeprom(ioaddr);
-#else
- reload_eeprom(ioaddr0);
- /* Reloading from eeprom overwrites cfgA-D, so we must re-enable MMIO.
- If reload_eeprom() was done first this could be avoided, but it is
- not known if that still works with the "win98-reboot" problem. */
- enable_mmio(ioaddr0, chip_id);
-#endif
-
- for (i = 0; i < 6; i++)
- dev->dev_addr[i] = readb(ioaddr + StationAddr + i);
-
- if (!is_valid_ether_addr(dev->dev_addr)) {
- printk(KERN_ERR "Invalid MAC address for card #%d\n", card_idx);
- goto err_out_unmap;
- }
-
- if (chip_id == VT6102) {
- /*
- * for 3065D, EEPROM reloaded will cause bit 0 in MAC_REG_CFGA
- * turned on. it makes MAC receive magic packet
- * automatically. So, we turn it off. (D-Link)
- */
- writeb(readb(ioaddr + ConfigA) & 0xFE, ioaddr + ConfigA);
- }
-
- /* Select backoff algorithm */
- if (backoff)
- writeb(readb(ioaddr + ConfigD) & (0xF0 | backoff),
- ioaddr + ConfigD);
-
- dev->irq = pdev->irq;
-
- np = dev->priv;
- spin_lock_init (&np->lock);
- np->chip_id = chip_id;
- np->drv_flags = via_rhine_chip_info[chip_id].drv_flags;
- np->pdev = pdev;
- np->mii_if.dev = dev;
- np->mii_if.mdio_read = mdio_read;
- np->mii_if.mdio_write = mdio_write;
- np->mii_if.phy_id_mask = 0x1f;
- np->mii_if.reg_num_mask = 0x1f;
-
- if (dev->mem_start)
- option = dev->mem_start;
-
- /* The chip-specific entries in the device structure. */
- dev->open = via_rhine_open;
- dev->hard_start_xmit = via_rhine_start_tx;
- dev->stop = via_rhine_close;
- dev->get_stats = via_rhine_get_stats;
- dev->set_multicast_list = via_rhine_set_rx_mode;
-#if 0
- dev->do_ioctl = netdev_ioctl;
-#endif
- dev->tx_timeout = via_rhine_tx_timeout;
- dev->watchdog_timeo = TX_TIMEOUT;
-#if 0
- if (np->drv_flags & ReqTxAlign)
-#endif
- dev->features |= NETIF_F_SG|NETIF_F_HW_CSUM;
-
- /* dev->name not defined before register_netdev()! */
- i = register_netdev(dev);
- if (i)
- goto err_out_unmap;
-
- /* The lower four bits are the media type. */
- if (option > 0) {
- if (option & 0x220)
- np->mii_if.full_duplex = 1;
- np->default_port = option & 15;
- }
- if (card_idx < MAX_UNITS && full_duplex[card_idx] > 0)
- np->mii_if.full_duplex = 1;
-
- if (np->mii_if.full_duplex) {
- printk(KERN_INFO "%s: Set to forced full duplex, autonegotiation"
- " disabled.\n", dev->name);
- np->mii_if.force_media = 1;
- }
-
- printk(KERN_INFO "%s: %s at 0x%lx, ",
- dev->name, via_rhine_chip_info[chip_id].name,
- (pci_flags & PCI_USES_IO) ? ioaddr : memaddr);
-
- for (i = 0; i < 5; i++)
- printk("%2.2x:", dev->dev_addr[i]);
- printk("%2.2x, IRQ %d.\n", dev->dev_addr[i], pdev->irq);
-
- pci_set_drvdata(pdev, dev);
-
- if (np->drv_flags & CanHaveMII) {
- int phy, phy_idx = 0;
- np->phys[0] = 1; /* Standard for this chip. */
- for (phy = 1; phy < 32 && phy_idx < MAX_MII_CNT; phy++) {
- int mii_status = mdio_read(dev, phy, 1);
- if (mii_status != 0xffff && mii_status != 0x0000) {
- np->phys[phy_idx++] = phy;
- np->mii_if.advertising = mdio_read(dev, phy, 4);
- printk(KERN_INFO "%s: MII PHY found at address %d, status "
- "0x%4.4x advertising %4.4x Link %4.4x.\n",
- dev->name, phy, mii_status, np->mii_if.advertising,
- mdio_read(dev, phy, 5));
-
- /* set IFF_RUNNING */
- if (mii_status & BMSR_LSTATUS)
- netif_carrier_on(dev);
- else
- netif_carrier_off(dev);
- }
- }
- np->mii_cnt = phy_idx;
- np->mii_if.phy_id = np->phys[0];
- }
-
- /* Allow forcing the media type. */
- if (option > 0) {
- if (option & 0x220)
- np->mii_if.full_duplex = 1;
- np->default_port = option & 0x3ff;
- if (np->default_port & 0x330) {
- /* FIXME: shouldn't someone check this variable? */
- /* np->medialock = 1; */
- printk(KERN_INFO " Forcing %dMbs %s-duplex operation.\n",
- (option & 0x300 ? 100 : 10),
- (option & 0x220 ? "full" : "half"));
- if (np->mii_cnt)
- mdio_write(dev, np->phys[0], MII_BMCR,
- ((option & 0x300) ? 0x2000 : 0) | /* 100mbps? */
- ((option & 0x220) ? 0x0100 : 0)); /* Full duplex? */
- }
- }
-
- alert_slow_netdevice(dev, (char *)via_rhine_chip_info[chip_id].name);
-
- return 0;
-
-err_out_unmap:
-#ifdef USE_MEM
- iounmap((void *)ioaddr);
-err_out_free_res:
-#endif
- pci_release_regions(pdev);
-err_out_free_netdev:
- kfree (dev);
-err_out:
- return -ENODEV;
-}
-
-static int alloc_ring(struct net_device* dev)
-{
- struct netdev_private *np = dev->priv;
- void *ring;
- dma_addr_t ring_dma;
-
- ring = pci_alloc_consistent(np->pdev,
- RX_RING_SIZE * sizeof(struct rx_desc) +
- TX_RING_SIZE * sizeof(struct tx_desc),
- &ring_dma);
- if (!ring) {
- printk(KERN_ERR "Could not allocate DMA memory.\n");
- return -ENOMEM;
- }
- if (np->drv_flags & ReqTxAlign) {
- np->tx_bufs = pci_alloc_consistent(np->pdev, PKT_BUF_SZ * TX_RING_SIZE,
- &np->tx_bufs_dma);
- if (np->tx_bufs == NULL) {
- pci_free_consistent(np->pdev,
- RX_RING_SIZE * sizeof(struct rx_desc) +
- TX_RING_SIZE * sizeof(struct tx_desc),
- ring, ring_dma);
- return -ENOMEM;
- }
- }
-
- np->rx_ring = ring;
- np->tx_ring = ring + RX_RING_SIZE * sizeof(struct rx_desc);
- np->rx_ring_dma = ring_dma;
- np->tx_ring_dma = ring_dma + RX_RING_SIZE * sizeof(struct rx_desc);
-
- return 0;
-}
-
-void free_ring(struct net_device* dev)
-{
- struct netdev_private *np = dev->priv;
-
- pci_free_consistent(np->pdev,
- RX_RING_SIZE * sizeof(struct rx_desc) +
- TX_RING_SIZE * sizeof(struct tx_desc),
- np->rx_ring, np->rx_ring_dma);
- np->tx_ring = NULL;
-
- if (np->tx_bufs)
- pci_free_consistent(np->pdev, PKT_BUF_SZ * TX_RING_SIZE,
- np->tx_bufs, np->tx_bufs_dma);
-
- np->tx_bufs = NULL;
-
-}
-
-static void alloc_rbufs(struct net_device *dev)
-{
- struct netdev_private *np = dev->priv;
- dma_addr_t next;
- int i;
-
- np->dirty_rx = np->cur_rx = 0;
-
- np->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);
- np->rx_head_desc = &np->rx_ring[0];
- next = np->rx_ring_dma;
-
- /* Init the ring entries */
- for (i = 0; i < RX_RING_SIZE; i++) {
- np->rx_ring[i].rx_status = 0;
- np->rx_ring[i].desc_length = cpu_to_le32(np->rx_buf_sz);
- next += sizeof(struct rx_desc);
- np->rx_ring[i].next_desc = cpu_to_le32(next);
- np->rx_skbuff[i] = 0;
- }
- /* Mark the last entry as wrapping the ring. */
- np->rx_ring[i-1].next_desc = cpu_to_le32(np->rx_ring_dma);
-
- /* Fill in the Rx buffers. Handle allocation failure gracefully. */
- for (i = 0; i < RX_RING_SIZE; i++) {
- struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz);
- np->rx_skbuff[i] = skb;
- if (skb == NULL)
- break;
- skb->dev = dev; /* Mark as being used by this device. */
-
- np->rx_skbuff_dma[i] =
- pci_map_single(np->pdev, skb->tail, np->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
-
- np->rx_ring[i].addr = cpu_to_le32(np->rx_skbuff_dma[i]);
- np->rx_ring[i].rx_status = cpu_to_le32(DescOwn);
- }
- np->dirty_rx = (unsigned int)(i - RX_RING_SIZE);
-}
-
-static void free_rbufs(struct net_device* dev)
-{
- struct netdev_private *np = dev->priv;
- int i;
-
- /* Free all the skbuffs in the Rx queue. */
- for (i = 0; i < RX_RING_SIZE; i++) {
- np->rx_ring[i].rx_status = 0;
- np->rx_ring[i].addr = cpu_to_le32(0xBADF00D0); /* An invalid address. */
- if (np->rx_skbuff[i]) {
- pci_unmap_single(np->pdev,
- np->rx_skbuff_dma[i],
- np->rx_buf_sz, PCI_DMA_FROMDEVICE);
- dev_kfree_skb(np->rx_skbuff[i]);
- }
- np->rx_skbuff[i] = 0;
- }
-}
-
-static void alloc_tbufs(struct net_device* dev)
-{
- struct netdev_private *np = dev->priv;
- dma_addr_t next;
- int i;
-
- np->dirty_tx = np->cur_tx = 0;
- next = np->tx_ring_dma;
- for (i = 0; i < TX_RING_SIZE; i++) {
- np->tx_skbuff[i] = 0;
- np->tx_ring[i].tx_status = 0;
- np->tx_ring[i].desc_length = cpu_to_le32(TXDESC);
- next += sizeof(struct tx_desc);
- np->tx_ring[i].next_desc = cpu_to_le32(next);
- np->tx_buf[i] = &np->tx_bufs[i * PKT_BUF_SZ];
- }
- np->tx_ring[i-1].next_desc = cpu_to_le32(np->tx_ring_dma);
-
-}
-
-static void free_tbufs(struct net_device* dev)
-{
- struct netdev_private *np = dev->priv;
- int i;
-
- for (i = 0; i < TX_RING_SIZE; i++) {
- np->tx_ring[i].tx_status = 0;
- np->tx_ring[i].desc_length = cpu_to_le32(TXDESC);
- np->tx_ring[i].addr = cpu_to_le32(0xBADF00D0); /* An invalid address. */
- if (np->tx_skbuff[i]) {
- if (np->tx_skbuff_dma[i]) {
- pci_unmap_single(np->pdev,
- np->tx_skbuff_dma[i],
- np->tx_skbuff[i]->len, PCI_DMA_TODEVICE);
- }
- dev_kfree_skb(np->tx_skbuff[i]);
- }
- np->tx_skbuff[i] = 0;
- np->tx_buf[i] = 0;
- }
-}
-
-static void init_registers(struct net_device *dev)
-{
- struct netdev_private *np = dev->priv;
- long ioaddr = dev->base_addr;
- int i;
-
- for (i = 0; i < 6; i++)
- writeb(dev->dev_addr[i], ioaddr + StationAddr + i);
-
- /* Initialize other registers. */
- writew(0x0006, ioaddr + PCIBusConfig); /* Tune configuration??? */
- /* Configure initial FIFO thresholds. */
- writeb(0x20, ioaddr + TxConfig);
- np->tx_thresh = 0x20;
- np->rx_thresh = 0x60; /* Written in via_rhine_set_rx_mode(). */
- np->mii_if.full_duplex = 0;
-
- if (dev->if_port == 0)
- dev->if_port = np->default_port;
-
- writel(np->rx_ring_dma, ioaddr + RxRingPtr);
- writel(np->tx_ring_dma, ioaddr + TxRingPtr);
-
- via_rhine_set_rx_mode(dev);
-
- /* Enable interrupts by setting the interrupt mask. */
- writew(IntrRxDone | IntrRxErr | IntrRxEmpty| IntrRxOverflow |
- IntrRxDropped | IntrRxNoBuf | IntrTxAborted |
- IntrTxDone | IntrTxError | IntrTxUnderrun |
- IntrPCIErr | IntrStatsMax | IntrLinkChange,
- ioaddr + IntrEnable);
-
- np->chip_cmd = CmdStart|CmdTxOn|CmdRxOn|CmdNoTxPoll;
- if (np->mii_if.force_media)
- np->chip_cmd |= CmdFDuplex;
- writew(np->chip_cmd, ioaddr + ChipCmd);
-
- via_rhine_check_duplex(dev);
-
- /* The LED outputs of various MII xcvrs should be configured. */
- /* For NS or Mison phys, turn on bit 1 in register 0x17 */
- /* For ESI phys, turn on bit 7 in register 0x17. */
- mdio_write(dev, np->phys[0], 0x17, mdio_read(dev, np->phys[0], 0x17) |
- (np->drv_flags & HasESIPhy) ? 0x0080 : 0x0001);
-}
-/* Read and write over the MII Management Data I/O (MDIO) interface. */
-
-static int mdio_read(struct net_device *dev, int phy_id, int regnum)
-{
- long ioaddr = dev->base_addr;
- int boguscnt = 1024;
-
- /* Wait for a previous command to complete. */
- while ((readb(ioaddr + MIICmd) & 0x60) && --boguscnt > 0)
- ;
- writeb(0x00, ioaddr + MIICmd);
- writeb(phy_id, ioaddr + MIIPhyAddr);
- writeb(regnum, ioaddr + MIIRegAddr);
- writeb(0x40, ioaddr + MIICmd); /* Trigger read */
- boguscnt = 1024;
- while ((readb(ioaddr + MIICmd) & 0x40) && --boguscnt > 0)
- ;
- return readw(ioaddr + MIIData);
-}
-
-static void mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
-{
- struct netdev_private *np = dev->priv;
- long ioaddr = dev->base_addr;
- int boguscnt = 1024;
-
- if (phy_id == np->phys[0]) {
- switch (regnum) {
- case MII_BMCR: /* Is user forcing speed/duplex? */
- if (value & 0x9000) /* Autonegotiation. */
- np->mii_if.force_media = 0;
- else
- np->mii_if.full_duplex = (value & 0x0100) ? 1 : 0;
- break;
- case MII_ADVERTISE:
- np->mii_if.advertising = value;
- break;
- }
- }
-
- /* Wait for a previous command to complete. */
- while ((readb(ioaddr + MIICmd) & 0x60) && --boguscnt > 0)
- ;
- writeb(0x00, ioaddr + MIICmd);
- writeb(phy_id, ioaddr + MIIPhyAddr);
- writeb(regnum, ioaddr + MIIRegAddr);
- writew(value, ioaddr + MIIData);
- writeb(0x20, ioaddr + MIICmd); /* Trigger write. */
-}
-
-
-static int via_rhine_open(struct net_device *dev)
-{
- struct netdev_private *np = dev->priv;
- long ioaddr = dev->base_addr;
- int i;
-
- /* Reset the chip. */
- writew(CmdReset, ioaddr + ChipCmd);
-
- i = request_irq(np->pdev->irq, &via_rhine_interrupt, SA_SHIRQ, dev->name, dev);
- if (i)
- return i;
-
- if (debug > 1)
- printk(KERN_DEBUG "%s: via_rhine_open() irq %d.\n",
- dev->name, np->pdev->irq);
-
- i = alloc_ring(dev);
- if (i)
- return i;
- alloc_rbufs(dev);
- alloc_tbufs(dev);
- wait_for_reset(dev, np->chip_id, dev->name);
- init_registers(dev);
- if (debug > 2)
- printk(KERN_DEBUG "%s: Done via_rhine_open(), status %4.4x "
- "MII status: %4.4x.\n",
- dev->name, readw(ioaddr + ChipCmd),
- mdio_read(dev, np->phys[0], MII_BMSR));
-
- netif_start_queue(dev);
-
- /* Set the timer to check for link beat. */
- init_timer(&np->timer);
- np->timer.expires = jiffies + 2;
- np->timer.data = (unsigned long)dev;
- np->timer.function = &via_rhine_timer; /* timer handler */
- add_timer(&np->timer);
-
- return 0;
-}
-
-static void via_rhine_check_duplex(struct net_device *dev)
-{
- struct netdev_private *np = dev->priv;
- long ioaddr = dev->base_addr;
- int mii_lpa = mdio_read(dev, np->phys[0], MII_LPA);
- int negotiated = mii_lpa & np->mii_if.advertising;
- int duplex;
-
- if (np->mii_if.force_media || mii_lpa == 0xffff)
- return;
- duplex = (negotiated & 0x0100) || (negotiated & 0x01C0) == 0x0040;
- if (np->mii_if.full_duplex != duplex) {
- np->mii_if.full_duplex = duplex;
- if (debug)
- printk(KERN_INFO "%s: Setting %s-duplex based on MII #%d link"
- " partner capability of %4.4x.\n", dev->name,
- duplex ? "full" : "half", np->phys[0], mii_lpa);
- if (duplex)
- np->chip_cmd |= CmdFDuplex;
- else
- np->chip_cmd &= ~CmdFDuplex;
- writew(np->chip_cmd, ioaddr + ChipCmd);
- }
-}
-
-
-static void via_rhine_timer(unsigned long data)
-{
- struct net_device *dev = (struct net_device *)data;
- struct netdev_private *np = dev->priv;
- long ioaddr = dev->base_addr;
- int next_tick = 10*HZ;
- int mii_status;
-
- if (debug > 3) {
- printk(KERN_DEBUG "%s: VIA Rhine monitor tick, status %4.4x.\n",
- dev->name, readw(ioaddr + IntrStatus));
- }
-
- spin_lock_irq (&np->lock);
-
- via_rhine_check_duplex(dev);
-
- /* make IFF_RUNNING follow the MII status bit "Link established" */
- mii_status = mdio_read(dev, np->phys[0], MII_BMSR);
- if ( (mii_status & BMSR_LSTATUS) != (np->mii_status & BMSR_LSTATUS) ) {
- if (mii_status & BMSR_LSTATUS)
- netif_carrier_on(dev);
- else
- netif_carrier_off(dev);
- }
- np->mii_status = mii_status;
-
- spin_unlock_irq (&np->lock);
-
- np->timer.expires = jiffies + next_tick;
- add_timer(&np->timer);
-}
-
-
-static void via_rhine_tx_timeout (struct net_device *dev)
-{
- struct netdev_private *np = dev->priv;
- long ioaddr = dev->base_addr;
-
- printk (KERN_WARNING "%s: Transmit timed out, status %4.4x, PHY status "
- "%4.4x, resetting...\n",
- dev->name, readw (ioaddr + IntrStatus),
- mdio_read (dev, np->phys[0], MII_BMSR));
-
- dev->if_port = 0;
-
- /* protect against concurrent rx interrupts */
- disable_irq(np->pdev->irq);
-
- spin_lock(&np->lock);
-
- /* Reset the chip. */
- writew(CmdReset, ioaddr + ChipCmd);
-
- /* clear all descriptors */
- free_tbufs(dev);
- free_rbufs(dev);
- alloc_tbufs(dev);
- alloc_rbufs(dev);
-
- /* Reinitialize the hardware. */
- wait_for_reset(dev, np->chip_id, dev->name);
- init_registers(dev);
-
- spin_unlock(&np->lock);
- enable_irq(np->pdev->irq);
-
- dev->trans_start = jiffies;
- np->stats.tx_errors++;
- netif_wake_queue(dev);
-}
-
-static int via_rhine_start_tx(struct sk_buff *skb, struct net_device *dev)
-{
- struct netdev_private *np = dev->priv;
- unsigned entry;
- u32 intr_status;
-
- /* Caution: the write order is important here, set the field
- with the "ownership" bits last. */
-
- /* Calculate the next Tx descriptor entry. */
- entry = np->cur_tx % TX_RING_SIZE;
-
- if (skb->len < ETH_ZLEN) {
-#if 0
- skb = skb_padto(skb, ETH_ZLEN);
- if(skb == NULL)
- return 0;
-#else
- memset(np->tx_buf[entry], 0, ETH_ZLEN);
-#endif
- }
-
- np->tx_skbuff[entry] = skb;
-
-#if 0
- if ((np->drv_flags & ReqTxAlign) &&
- (((long)skb->data & 3) || skb_shinfo(skb)->nr_frags != 0 || skb->ip_summed == CHECKSUM_HW)
- ) {
-#endif
- /* Must use alignment buffer. */
- if (skb->len > PKT_BUF_SZ) {
- /* packet too long, drop it */
- dev_kfree_skb(skb);
- np->tx_skbuff[entry] = NULL;
- np->stats.tx_dropped++;
- return 0;
- }
-#if 0
- skb_copy_and_csum_dev(skb, np->tx_buf[entry]);
-#else
- skb_copy_bits(skb, 0, np->tx_buf[entry], skb->len);
-#endif
- np->tx_skbuff_dma[entry] = 0;
- np->tx_ring[entry].addr = cpu_to_le32(np->tx_bufs_dma +
- (np->tx_buf[entry] - np->tx_bufs));
-#if 0
- } else {
- np->tx_skbuff_dma[entry] =
- pci_map_single(np->pdev, skb->data, skb->len, PCI_DMA_TODEVICE);
- np->tx_ring[entry].addr = cpu_to_le32(np->tx_skbuff_dma[entry]);
- }
-#endif
-
- np->tx_ring[entry].desc_length =
- cpu_to_le32(TXDESC | (skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN));
-
- /* lock eth irq */
- spin_lock_irq (&np->lock);
- wmb();
- np->tx_ring[entry].tx_status = cpu_to_le32(DescOwn);
- wmb();
-
- np->cur_tx++;
-
- /* Non-x86 Todo: explicitly flush cache lines here. */
-
- /*
- * Wake the potentially-idle transmit channel unless errors are
- * pending (the ISR must sort them out first).
- */
- intr_status = get_intr_status(dev);
- if ((intr_status & IntrTxErrSummary) == 0) {
- writew(CmdTxDemand | np->chip_cmd, dev->base_addr + ChipCmd);
- }
- IOSYNC;
-
- if (np->cur_tx == np->dirty_tx + TX_QUEUE_LEN)
- netif_stop_queue(dev);
-
- dev->trans_start = jiffies;
-
- spin_unlock_irq (&np->lock);
-
- if (debug > 4) {
- printk(KERN_DEBUG "%s: Transmit frame #%d queued in slot %d.\n",
- dev->name, np->cur_tx-1, entry);
- }
- return 0;
-}
-
-/* The interrupt handler does all of the Rx thread work and cleans up
- after the Tx thread. */
-static void via_rhine_interrupt(int irq, void *dev_instance, struct pt_regs *rgs)
-{
- struct net_device *dev = dev_instance;
- long ioaddr;
- u32 intr_status;
- int boguscnt = max_interrupt_work;
-
- ioaddr = dev->base_addr;
-
- while ((intr_status = get_intr_status(dev))) {
- /* Acknowledge all of the current interrupt sources ASAP. */
- if (intr_status & IntrTxDescRace)
- writeb(0x08, ioaddr + IntrStatus2);
- writew(intr_status & 0xffff, ioaddr + IntrStatus);
- IOSYNC;
-
- if (debug > 4)
- printk(KERN_DEBUG "%s: Interrupt, status %8.8x.\n",
- dev->name, intr_status);
-
- if (intr_status & (IntrRxDone | IntrRxErr | IntrRxDropped |
- IntrRxWakeUp | IntrRxEmpty | IntrRxNoBuf))
- via_rhine_rx(dev);
-
- if (intr_status & (IntrTxErrSummary | IntrTxDone)) {
- if (intr_status & IntrTxErrSummary) {
- int cnt = 20;
- /* Avoid scavenging before Tx engine turned off */
- while ((readw(ioaddr+ChipCmd) & CmdTxOn) && --cnt)
- udelay(5);
- if (debug > 2 && !cnt)
- printk(KERN_WARNING "%s: via_rhine_interrupt() "
- "Tx engine still on.\n",
- dev->name);
- }
- via_rhine_tx(dev);
- }
-
- /* Abnormal error summary/uncommon events handlers. */
- if (intr_status & (IntrPCIErr | IntrLinkChange |
- IntrStatsMax | IntrTxError | IntrTxAborted |
- IntrTxUnderrun | IntrTxDescRace))
- via_rhine_error(dev, intr_status);
-
- if (--boguscnt < 0) {
- printk(KERN_WARNING "%s: Too much work at interrupt, "
- "status=%#8.8x.\n",
- dev->name, intr_status);
- break;
- }
- }
-
- if (debug > 3)
- printk(KERN_DEBUG "%s: exiting interrupt, status=%8.8x.\n",
- dev->name, readw(ioaddr + IntrStatus));
-}
-
-/* This routine is logically part of the interrupt handler, but isolated
- for clarity. */
-static void via_rhine_tx(struct net_device *dev)
-{
- struct netdev_private *np = dev->priv;
- int txstatus = 0, entry = np->dirty_tx % TX_RING_SIZE;
-
- spin_lock (&np->lock);
-
- /* find and cleanup dirty tx descriptors */
- while (np->dirty_tx != np->cur_tx) {
- txstatus = le32_to_cpu(np->tx_ring[entry].tx_status);
- if (debug > 6)
- printk(KERN_DEBUG " Tx scavenge %d status %8.8x.\n",
- entry, txstatus);
- if (txstatus & DescOwn)
- break;
- if (txstatus & 0x8000) {
- if (debug > 1)
- printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n",
- dev->name, txstatus);
- np->stats.tx_errors++;
- if (txstatus & 0x0400) np->stats.tx_carrier_errors++;
- if (txstatus & 0x0200) np->stats.tx_window_errors++;
- if (txstatus & 0x0100) np->stats.tx_aborted_errors++;
- if (txstatus & 0x0080) np->stats.tx_heartbeat_errors++;
- if (((np->chip_id == VT86C100A) && txstatus & 0x0002) ||
- (txstatus & 0x0800) || (txstatus & 0x1000)) {
- np->stats.tx_fifo_errors++;
- np->tx_ring[entry].tx_status = cpu_to_le32(DescOwn);
- break; /* Keep the skb - we try again */
- }
- /* Transmitter restarted in 'abnormal' handler. */
- } else {
- if (np->chip_id == VT86C100A)
- np->stats.collisions += (txstatus >> 3) & 0x0F;
- else
- np->stats.collisions += txstatus & 0x0F;
- if (debug > 6)
- printk(KERN_DEBUG "collisions: %1.1x:%1.1x\n",
- (txstatus >> 3) & 0xF,
- txstatus & 0xF);
- np->stats.tx_bytes += np->tx_skbuff[entry]->len;
- np->stats.tx_packets++;
- }
- /* Free the original skb. */
- if (np->tx_skbuff_dma[entry]) {
- pci_unmap_single(np->pdev,
- np->tx_skbuff_dma[entry],
- np->tx_skbuff[entry]->len, PCI_DMA_TODEVICE);
- }
- dev_kfree_skb_irq(np->tx_skbuff[entry]);
- np->tx_skbuff[entry] = NULL;
- entry = (++np->dirty_tx) % TX_RING_SIZE;
- }
- if ((np->cur_tx - np->dirty_tx) < TX_QUEUE_LEN - 4)
- netif_wake_queue (dev);
-
- spin_unlock (&np->lock);
-}
-
-/* This routine is logically part of the interrupt handler, but isolated
- for clarity and better register allocation. */
-static void via_rhine_rx(struct net_device *dev)
-{
- struct netdev_private *np = dev->priv;
- int entry = np->cur_rx % RX_RING_SIZE;
- int boguscnt = np->dirty_rx + RX_RING_SIZE - np->cur_rx;
-
- if (debug > 4) {
- printk(KERN_DEBUG "%s: via_rhine_rx(), entry %d status %8.8x.\n",
- dev->name, entry, le32_to_cpu(np->rx_head_desc->rx_status));
- }
-
- /* If EOP is set on the next entry, it's a new packet. Send it up. */
- while ( ! (np->rx_head_desc->rx_status & cpu_to_le32(DescOwn))) {
- struct rx_desc *desc = np->rx_head_desc;
- u32 desc_status = le32_to_cpu(desc->rx_status);
- int data_size = desc_status >> 16;
-
- if (debug > 4)
- printk(KERN_DEBUG " via_rhine_rx() status is %8.8x.\n",
- desc_status);
- if (--boguscnt < 0)
- break;
- if ( (desc_status & (RxWholePkt | RxErr)) != RxWholePkt) {
- if ((desc_status & RxWholePkt) != RxWholePkt) {
- printk(KERN_WARNING "%s: Oversized Ethernet frame spanned "
- "multiple buffers, entry %#x length %d status %8.8x!\n",
- dev->name, entry, data_size, desc_status);
- printk(KERN_WARNING "%s: Oversized Ethernet frame %p vs %p.\n",
- dev->name, np->rx_head_desc, &np->rx_ring[entry]);
- np->stats.rx_length_errors++;
- } else if (desc_status & RxErr) {
- /* There was a error. */
- if (debug > 2)
- printk(KERN_DEBUG " via_rhine_rx() Rx error was %8.8x.\n",
- desc_status);
- np->stats.rx_errors++;
- if (desc_status & 0x0030) np->stats.rx_length_errors++;
- if (desc_status & 0x0048) np->stats.rx_fifo_errors++;
- if (desc_status & 0x0004) np->stats.rx_frame_errors++;
- if (desc_status & 0x0002) {
- /* this can also be updated outside the interrupt handler */
- spin_lock (&np->lock);
- np->stats.rx_crc_errors++;
- spin_unlock (&np->lock);
- }
- }
- } else {
- struct sk_buff *skb;
- /* Length should omit the CRC */
- int pkt_len = data_size - 4;
-
- /* Check if the packet is long enough to accept without copying
- to a minimally-sized skbuff. */
- if (pkt_len < rx_copybreak &&
- (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
- skb->dev = dev;
- skb_reserve(skb, 2); /* 16 byte align the IP header */
- pci_dma_sync_single(np->pdev, np->rx_skbuff_dma[entry],
- np->rx_buf_sz, PCI_DMA_FROMDEVICE);
-
- /* *_IP_COPYSUM isn't defined anywhere and eth_copy_and_sum
- is memcpy for all archs so this is kind of pointless right
- now ... or? */
-#if HAS_IP_COPYSUM /* Call copy + cksum if available. */
- eth_copy_and_sum(skb, np->rx_skbuff[entry]->tail, pkt_len, 0);
- skb_put(skb, pkt_len);
-#else
- memcpy(skb_put(skb, pkt_len), np->rx_skbuff[entry]->tail,
- pkt_len);
-#endif
- } else {
- skb = np->rx_skbuff[entry];
- if (skb == NULL) {
- printk(KERN_ERR "%s: Inconsistent Rx descriptor chain.\n",
- dev->name);
- break;
- }
- np->rx_skbuff[entry] = NULL;
- skb_put(skb, pkt_len);
- pci_unmap_single(np->pdev, np->rx_skbuff_dma[entry],
- np->rx_buf_sz, PCI_DMA_FROMDEVICE);
- }
- skb->protocol = eth_type_trans(skb, dev);
- netif_rx(skb);
- dev->last_rx = jiffies;
- np->stats.rx_bytes += pkt_len;
- np->stats.rx_packets++;
- }
- entry = (++np->cur_rx) % RX_RING_SIZE;
- np->rx_head_desc = &np->rx_ring[entry];
- }
-
- /* Refill the Rx ring buffers. */
- for (; np->cur_rx - np->dirty_rx > 0; np->dirty_rx++) {
- struct sk_buff *skb;
- entry = np->dirty_rx % RX_RING_SIZE;
- if (np->rx_skbuff[entry] == NULL) {
- skb = dev_alloc_skb(np->rx_buf_sz);
- np->rx_skbuff[entry] = skb;
- if (skb == NULL)
- break; /* Better luck next round. */
- skb->dev = dev; /* Mark as being used by this device. */
- np->rx_skbuff_dma[entry] =
- pci_map_single(np->pdev, skb->tail, np->rx_buf_sz,
- PCI_DMA_FROMDEVICE);
- np->rx_ring[entry].addr = cpu_to_le32(np->rx_skbuff_dma[entry]);
- }
- np->rx_ring[entry].rx_status = cpu_to_le32(DescOwn);
- }
-
- /* Pre-emptively restart Rx engine. */
- writew(readw(dev->base_addr + ChipCmd) | CmdRxOn | CmdRxDemand,
- dev->base_addr + ChipCmd);
-}
-
-/* Clears the "tally counters" for CRC errors and missed frames(?).
- It has been reported that some chips need a write of 0 to clear
- these, for others the counters are set to 1 when written to and
- instead cleared when read. So we clear them both ways ... */
-static inline void clear_tally_counters(const long ioaddr)
-{
- writel(0, ioaddr + RxMissed);
- readw(ioaddr + RxCRCErrs);
- readw(ioaddr + RxMissed);
-}
-
-static void via_rhine_restart_tx(struct net_device *dev) {
- struct netdev_private *np = dev->priv;
- long ioaddr = dev->base_addr;
- int entry = np->dirty_tx % TX_RING_SIZE;
- u32 intr_status;
-
- /*
- * If new errors occured, we need to sort them out before doing Tx.
- * In that case the ISR will be back here RSN anyway.
- */
- intr_status = get_intr_status(dev);
-
- if ((intr_status & IntrTxErrSummary) == 0) {
-
- /* We know better than the chip where it should continue. */
- writel(np->tx_ring_dma + entry * sizeof(struct tx_desc),
- ioaddr + TxRingPtr);
-
- writew(CmdTxDemand | np->chip_cmd, ioaddr + ChipCmd);
- IOSYNC;
- }
- else {
- /* This should never happen */
- if (debug > 1)
- printk(KERN_WARNING "%s: via_rhine_restart_tx() "
- "Another error occured %8.8x.\n",
- dev->name, intr_status);
- }
-
-}
-
-static void via_rhine_error(struct net_device *dev, int intr_status)
-{
- struct netdev_private *np = dev->priv;
- long ioaddr = dev->base_addr;
-
- spin_lock (&np->lock);
-
- if (intr_status & (IntrLinkChange)) {
- if (readb(ioaddr + MIIStatus) & 0x02) {
- /* Link failed, restart autonegotiation. */
- if (np->drv_flags & HasDavicomPhy)
- mdio_write(dev, np->phys[0], MII_BMCR, 0x3300);
- } else
- via_rhine_check_duplex(dev);
- if (debug)
- printk(KERN_ERR "%s: MII status changed: Autonegotiation "
- "advertising %4.4x partner %4.4x.\n", dev->name,
- mdio_read(dev, np->phys[0], MII_ADVERTISE),
- mdio_read(dev, np->phys[0], MII_LPA));
- }
- if (intr_status & IntrStatsMax) {
- np->stats.rx_crc_errors += readw(ioaddr + RxCRCErrs);
- np->stats.rx_missed_errors += readw(ioaddr + RxMissed);
- clear_tally_counters(ioaddr);
- }
- if (intr_status & IntrTxAborted) {
- if (debug > 1)
- printk(KERN_INFO "%s: Abort %8.8x, frame dropped.\n",
- dev->name, intr_status);
- }
- if (intr_status & IntrTxUnderrun) {
- if (np->tx_thresh < 0xE0)
- writeb(np->tx_thresh += 0x20, ioaddr + TxConfig);
- if (debug > 1)
- printk(KERN_INFO "%s: Transmitter underrun, Tx "
- "threshold now %2.2x.\n",
- dev->name, np->tx_thresh);
- }
- if (intr_status & IntrTxDescRace) {
- if (debug > 2)
- printk(KERN_INFO "%s: Tx descriptor write-back race.\n",
- dev->name);
- }
- if (intr_status & ( IntrTxAborted | IntrTxUnderrun | IntrTxDescRace ))
- via_rhine_restart_tx(dev);
-
- if (intr_status & ~( IntrLinkChange | IntrStatsMax | IntrTxUnderrun |
- IntrTxError | IntrTxAborted | IntrNormalSummary |
- IntrTxDescRace )) {
- if (debug > 1)
- printk(KERN_ERR "%s: Something Wicked happened! %8.8x.\n",
- dev->name, intr_status);
- }
-
- spin_unlock (&np->lock);
-}
-
-static struct net_device_stats *via_rhine_get_stats(struct net_device *dev)
-{
- struct netdev_private *np = dev->priv;
- long ioaddr = dev->base_addr;
- unsigned long flags;
-
- spin_lock_irqsave(&np->lock, flags);
- np->stats.rx_crc_errors += readw(ioaddr + RxCRCErrs);
- np->stats.rx_missed_errors += readw(ioaddr + RxMissed);
- clear_tally_counters(ioaddr);
- spin_unlock_irqrestore(&np->lock, flags);
-
- return &np->stats;
-}
-
-static void via_rhine_set_rx_mode(struct net_device *dev)
-{
- struct netdev_private *np = dev->priv;
- long ioaddr = dev->base_addr;
- u32 mc_filter[2]; /* Multicast hash filter */
- u8 rx_mode; /* Note: 0x02=accept runt, 0x01=accept errs */
-
- if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
- /* Unconditionally log net taps. */
- printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
- rx_mode = 0x1C;
- } else if ((dev->mc_count > multicast_filter_limit)
- || (dev->flags & IFF_ALLMULTI)) {
- /* Too many to match, or accept all multicasts. */
- writel(0xffffffff, ioaddr + MulticastFilter0);
- writel(0xffffffff, ioaddr + MulticastFilter1);
- rx_mode = 0x0C;
- } else {
- struct dev_mc_list *mclist;
- int i;
- memset(mc_filter, 0, sizeof(mc_filter));
- for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
- i++, mclist = mclist->next) {
- int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
-
- mc_filter[bit_nr >> 5] |= cpu_to_le32(1 << (bit_nr & 31));
- }
- writel(mc_filter[0], ioaddr + MulticastFilter0);
- writel(mc_filter[1], ioaddr + MulticastFilter1);
- rx_mode = 0x0C;
- }
- writeb(np->rx_thresh | rx_mode, ioaddr + RxConfig);
-}
-
-#if 0
-static int netdev_ethtool_ioctl (struct net_device *dev, void *useraddr)
-{
- struct netdev_private *np = dev->priv;
- u32 ethcmd;
-
- if (get_user(ethcmd, (u32 *)useraddr))
- return -EFAULT;
-
- switch (ethcmd) {
- case ETHTOOL_GDRVINFO: {
- struct ethtool_drvinfo info = { ETHTOOL_GDRVINFO };
- strcpy (info.driver, DRV_NAME);
- strcpy (info.version, DRV_VERSION);
- strcpy (info.bus_info, np->pdev->slot_name);
- if (copy_to_user (useraddr, &info, sizeof (info)))
- return -EFAULT;
- return 0;
- }
-
- /* get settings */
- case ETHTOOL_GSET: {
- struct ethtool_cmd ecmd = { ETHTOOL_GSET };
- if (!(np->drv_flags & CanHaveMII))
- break;
- spin_lock_irq(&np->lock);
- mii_ethtool_gset(&np->mii_if, &ecmd);
- spin_unlock_irq(&np->lock);
- if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
- return -EFAULT;
- return 0;
- }
- /* set settings */
- case ETHTOOL_SSET: {
- int r;
- struct ethtool_cmd ecmd;
- if (!(np->drv_flags & CanHaveMII))
- break;
- if (copy_from_user(&ecmd, useraddr, sizeof(ecmd)))
- return -EFAULT;
- spin_lock_irq(&np->lock);
- r = mii_ethtool_sset(&np->mii_if, &ecmd);
- spin_unlock_irq(&np->lock);
- return r;
- }
- /* restart autonegotiation */
- case ETHTOOL_NWAY_RST: {
- if (!(np->drv_flags & CanHaveMII))
- break;
- return mii_nway_restart(&np->mii_if);
- }
- /* get link status */
- case ETHTOOL_GLINK: {
- struct ethtool_value edata = {ETHTOOL_GLINK};
- if (!(np->drv_flags & CanHaveMII))
- break;
- edata.data = mii_link_ok(&np->mii_if);
- if (copy_to_user(useraddr, &edata, sizeof(edata)))
- return -EFAULT;
- return 0;
- }
-
- /* get message-level */
- case ETHTOOL_GMSGLVL: {
- struct ethtool_value edata = {ETHTOOL_GMSGLVL};
- edata.data = debug;
- if (copy_to_user(useraddr, &edata, sizeof(edata)))
- return -EFAULT;
- return 0;
- }
- /* set message-level */
- case ETHTOOL_SMSGLVL: {
- struct ethtool_value edata;
- if (copy_from_user(&edata, useraddr, sizeof(edata)))
- return -EFAULT;
- debug = edata.data;
- return 0;
- }
- default:
- break;
- }
-
- return -EOPNOTSUPP;
-}
-
-static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct netdev_private *np = dev->priv;
- struct mii_ioctl_data *data = (struct mii_ioctl_data *) & rq->ifr_data;
- int rc;
-
- if (!netif_running(dev))
- return -EINVAL;
-
- if (cmd == SIOCETHTOOL)
- rc = netdev_ethtool_ioctl(dev, (void *) rq->ifr_data);
-
- else {
- spin_lock_irq(&np->lock);
- rc = generic_mii_ioctl(&np->mii_if, data, cmd, NULL);
- spin_unlock_irq(&np->lock);
- }
-
- return rc;
-}
-#endif
-
-static int via_rhine_close(struct net_device *dev)
-{
- long ioaddr = dev->base_addr;
- struct netdev_private *np = dev->priv;
-
- del_timer_sync(&np->timer);
-
- spin_lock_irq(&np->lock);
-
- netif_stop_queue(dev);
-
- if (debug > 1)
- printk(KERN_DEBUG "%s: Shutting down ethercard, status was %4.4x.\n",
- dev->name, readw(ioaddr + ChipCmd));
-
- /* Switch to loopback mode to avoid hardware races. */
- writeb(np->tx_thresh | 0x02, ioaddr + TxConfig);
-
- /* Disable interrupts by clearing the interrupt mask. */
- writew(0x0000, ioaddr + IntrEnable);
-
- /* Stop the chip's Tx and Rx processes. */
- writew(CmdStop, ioaddr + ChipCmd);
-
- spin_unlock_irq(&np->lock);
-
- free_irq(np->pdev->irq, dev);
- free_rbufs(dev);
- free_tbufs(dev);
- free_ring(dev);
-
- return 0;
-}
-
-
-static void __devexit via_rhine_remove_one (struct pci_dev *pdev)
-{
- struct net_device *dev = pci_get_drvdata(pdev);
-
- unregister_netdev(dev);
-
- pci_release_regions(pdev);
-
-#ifdef USE_MEM
- iounmap((char *)(dev->base_addr));
-#endif
-
- kfree(dev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
-}
-
-
-static struct pci_driver via_rhine_driver = {
- .name = "via-rhine",
- .id_table = via_rhine_pci_tbl,
- .probe = via_rhine_init_one,
- .remove = __devexit_p(via_rhine_remove_one),
-};
-
-
-static int __init via_rhine_init (void)
-{
-/* when a module, this is printed whether or not devices are found in probe */
-#ifdef MODULE
- printk(version);
-#endif
- return pci_module_init (&via_rhine_driver);
-}
-
-
-static void __exit via_rhine_cleanup (void)
-{
- pci_unregister_driver (&via_rhine_driver);
-}
-
-
-module_init(via_rhine_init);
-module_exit(via_rhine_cleanup);
-
-
-/*
- * Local variables:
- * compile-command: "gcc -DMODULE -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -c via-rhine.c `[ -f /usr/include/linux/modversions.h ] && echo -DMODVERSIONS`"
- * c-indent-level: 4
- * c-basic-offset: 4
- * tab-width: 4
- * End:
- */
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