x86, delay: tsc based udelay should have rdtsc_barrier
[linux-2.6/mini2440.git] / drivers / net / pci-skeleton.c
blob8c1f6988f398bdbc42305fb1aed09fffb9db97ed
1 /*
3 drivers/net/pci-skeleton.c
5 Maintained by Jeff Garzik <jgarzik@pobox.com>
7 Original code came from 8139too.c, which in turns was based
8 originally on Donald Becker's rtl8139.c driver, versions 1.11
9 and older. This driver was originally based on rtl8139.c
10 version 1.07. Header of rtl8139.c version 1.11:
12 -----<snip>-----
14 Written 1997-2000 by Donald Becker.
15 This software may be used and distributed according to the
16 terms of the GNU General Public License (GPL), incorporated
17 herein by reference. Drivers based on or derived from this
18 code fall under the GPL and must retain the authorship,
19 copyright and license notice. This file is not a complete
20 program and may only be used when the entire operating
21 system is licensed under the GPL.
23 This driver is for boards based on the RTL8129 and RTL8139
24 PCI ethernet chips.
26 The author may be reached as becker@scyld.com, or C/O Scyld
27 Computing Corporation 410 Severn Ave., Suite 210 Annapolis
28 MD 21403
30 Support and updates available at
31 http://www.scyld.com/network/rtl8139.html
33 Twister-tuning table provided by Kinston
34 <shangh@realtek.com.tw>.
36 -----<snip>-----
38 This software may be used and distributed according to the terms
39 of the GNU General Public License, incorporated herein by reference.
42 -----------------------------------------------------------------------------
44 Theory of Operation
46 I. Board Compatibility
48 This device driver is designed for the RealTek RTL8139 series, the RealTek
49 Fast Ethernet controllers for PCI and CardBus. This chip is used on many
50 low-end boards, sometimes with its markings changed.
53 II. Board-specific settings
55 PCI bus devices are configured by the system at boot time, so no jumpers
56 need to be set on the board. The system BIOS will assign the
57 PCI INTA signal to a (preferably otherwise unused) system IRQ line.
59 III. Driver operation
61 IIIa. Rx Ring buffers
63 The receive unit uses a single linear ring buffer rather than the more
64 common (and more efficient) descriptor-based architecture. Incoming frames
65 are sequentially stored into the Rx region, and the host copies them into
66 skbuffs.
68 Comment: While it is theoretically possible to process many frames in place,
69 any delay in Rx processing would cause us to drop frames. More importantly,
70 the Linux protocol stack is not designed to operate in this manner.
72 IIIb. Tx operation
74 The RTL8139 uses a fixed set of four Tx descriptors in register space.
75 In a stunningly bad design choice, Tx frames must be 32 bit aligned. Linux
76 aligns the IP header on word boundaries, and 14 byte ethernet header means
77 that almost all frames will need to be copied to an alignment buffer.
79 IVb. References
81 http://www.realtek.com.tw/cn/cn.html
82 http://www.scyld.com/expert/NWay.html
84 IVc. Errata
88 #include <linux/module.h>
89 #include <linux/kernel.h>
90 #include <linux/pci.h>
91 #include <linux/init.h>
92 #include <linux/ioport.h>
93 #include <linux/netdevice.h>
94 #include <linux/etherdevice.h>
95 #include <linux/delay.h>
96 #include <linux/ethtool.h>
97 #include <linux/mii.h>
98 #include <linux/crc32.h>
99 #include <asm/io.h>
101 #define NETDRV_VERSION "1.0.1"
102 #define MODNAME "netdrv"
103 #define NETDRV_DRIVER_LOAD_MSG "MyVendor Fast Ethernet driver " NETDRV_VERSION " loaded"
104 #define PFX MODNAME ": "
106 static char version[] __devinitdata =
107 KERN_INFO NETDRV_DRIVER_LOAD_MSG "\n"
108 KERN_INFO " Support available from http://foo.com/bar/baz.html\n";
110 /* define to 1 to enable PIO instead of MMIO */
111 #undef USE_IO_OPS
113 /* define to 1 to enable copious debugging info */
114 #undef NETDRV_DEBUG
116 /* define to 1 to disable lightweight runtime debugging checks */
117 #undef NETDRV_NDEBUG
120 #ifdef NETDRV_DEBUG
121 /* note: prints function name for you */
122 # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __func__ , ## args)
123 #else
124 # define DPRINTK(fmt, args...)
125 #endif
127 #ifdef NETDRV_NDEBUG
128 # define assert(expr) do {} while (0)
129 #else
130 # define assert(expr) \
131 if(!(expr)) { \
132 printk( "Assertion failed! %s,%s,%s,line=%d\n", \
133 #expr,__FILE__,__func__,__LINE__); \
135 #endif
138 /* A few user-configurable values. */
139 /* media options */
140 static int media[] = {-1, -1, -1, -1, -1, -1, -1, -1};
142 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
143 static int max_interrupt_work = 20;
145 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
146 The RTL chips use a 64 element hash table based on the Ethernet CRC. */
147 static int multicast_filter_limit = 32;
149 /* Size of the in-memory receive ring. */
150 #define RX_BUF_LEN_IDX 2 /* 0==8K, 1==16K, 2==32K, 3==64K */
151 #define RX_BUF_LEN (8192 << RX_BUF_LEN_IDX)
152 #define RX_BUF_PAD 16
153 #define RX_BUF_WRAP_PAD 2048 /* spare padding to handle lack of packet wrap */
154 #define RX_BUF_TOT_LEN (RX_BUF_LEN + RX_BUF_PAD + RX_BUF_WRAP_PAD)
156 /* Number of Tx descriptor registers. */
157 #define NUM_TX_DESC 4
159 /* max supported ethernet frame size -- must be at least (dev->mtu+14+4).*/
160 #define MAX_ETH_FRAME_SIZE 1536
162 /* Size of the Tx bounce buffers -- must be at least (dev->mtu+14+4). */
163 #define TX_BUF_SIZE MAX_ETH_FRAME_SIZE
164 #define TX_BUF_TOT_LEN (TX_BUF_SIZE * NUM_TX_DESC)
166 /* PCI Tuning Parameters
167 Threshold is bytes transferred to chip before transmission starts. */
168 #define TX_FIFO_THRESH 256 /* In bytes, rounded down to 32 byte units. */
170 /* The following settings are log_2(bytes)-4: 0 == 16 bytes .. 6==1024, 7==end of packet. */
171 #define RX_FIFO_THRESH 6 /* Rx buffer level before first PCI xfer. */
172 #define RX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
173 #define TX_DMA_BURST 6 /* Maximum PCI burst, '6' is 1024 */
176 /* Operational parameters that usually are not changed. */
177 /* Time in jiffies before concluding the transmitter is hung. */
178 #define TX_TIMEOUT (6*HZ)
181 enum {
182 HAS_CHIP_XCVR = 0x020000,
183 HAS_LNK_CHNG = 0x040000,
186 #define NETDRV_MIN_IO_SIZE 0x80
187 #define RTL8139B_IO_SIZE 256
189 #define NETDRV_CAPS HAS_CHIP_XCVR|HAS_LNK_CHNG
191 typedef enum {
192 RTL8139 = 0,
193 NETDRV_CB,
194 SMC1211TX,
195 /*MPX5030,*/
196 DELTA8139,
197 ADDTRON8139,
198 } board_t;
201 /* indexed by board_t, above */
202 static struct {
203 const char *name;
204 } board_info[] __devinitdata = {
205 { "RealTek RTL8139 Fast Ethernet" },
206 { "RealTek RTL8139B PCI/CardBus" },
207 { "SMC1211TX EZCard 10/100 (RealTek RTL8139)" },
208 /* { MPX5030, "Accton MPX5030 (RealTek RTL8139)" },*/
209 { "Delta Electronics 8139 10/100BaseTX" },
210 { "Addtron Technolgy 8139 10/100BaseTX" },
214 static struct pci_device_id netdrv_pci_tbl[] = {
215 {0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
216 {0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, NETDRV_CB },
217 {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, SMC1211TX },
218 /* {0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MPX5030 },*/
219 {0x1500, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DELTA8139 },
220 {0x4033, 0x1360, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ADDTRON8139 },
221 {0,}
223 MODULE_DEVICE_TABLE (pci, netdrv_pci_tbl);
226 /* The rest of these values should never change. */
228 /* Symbolic offsets to registers. */
229 enum NETDRV_registers {
230 MAC0 = 0, /* Ethernet hardware address. */
231 MAR0 = 8, /* Multicast filter. */
232 TxStatus0 = 0x10, /* Transmit status (Four 32bit registers). */
233 TxAddr0 = 0x20, /* Tx descriptors (also four 32bit). */
234 RxBuf = 0x30,
235 RxEarlyCnt = 0x34,
236 RxEarlyStatus = 0x36,
237 ChipCmd = 0x37,
238 RxBufPtr = 0x38,
239 RxBufAddr = 0x3A,
240 IntrMask = 0x3C,
241 IntrStatus = 0x3E,
242 TxConfig = 0x40,
243 ChipVersion = 0x43,
244 RxConfig = 0x44,
245 Timer = 0x48, /* A general-purpose counter. */
246 RxMissed = 0x4C, /* 24 bits valid, write clears. */
247 Cfg9346 = 0x50,
248 Config0 = 0x51,
249 Config1 = 0x52,
250 FlashReg = 0x54,
251 MediaStatus = 0x58,
252 Config3 = 0x59,
253 Config4 = 0x5A, /* absent on RTL-8139A */
254 HltClk = 0x5B,
255 MultiIntr = 0x5C,
256 TxSummary = 0x60,
257 BasicModeCtrl = 0x62,
258 BasicModeStatus = 0x64,
259 NWayAdvert = 0x66,
260 NWayLPAR = 0x68,
261 NWayExpansion = 0x6A,
262 /* Undocumented registers, but required for proper operation. */
263 FIFOTMS = 0x70, /* FIFO Control and test. */
264 CSCR = 0x74, /* Chip Status and Configuration Register. */
265 PARA78 = 0x78,
266 PARA7c = 0x7c, /* Magic transceiver parameter register. */
267 Config5 = 0xD8, /* absent on RTL-8139A */
270 enum ClearBitMasks {
271 MultiIntrClear = 0xF000,
272 ChipCmdClear = 0xE2,
273 Config1Clear = (1<<7)|(1<<6)|(1<<3)|(1<<2)|(1<<1),
276 enum ChipCmdBits {
277 CmdReset = 0x10,
278 CmdRxEnb = 0x08,
279 CmdTxEnb = 0x04,
280 RxBufEmpty = 0x01,
283 /* Interrupt register bits, using my own meaningful names. */
284 enum IntrStatusBits {
285 PCIErr = 0x8000,
286 PCSTimeout = 0x4000,
287 RxFIFOOver = 0x40,
288 RxUnderrun = 0x20,
289 RxOverflow = 0x10,
290 TxErr = 0x08,
291 TxOK = 0x04,
292 RxErr = 0x02,
293 RxOK = 0x01,
295 enum TxStatusBits {
296 TxHostOwns = 0x2000,
297 TxUnderrun = 0x4000,
298 TxStatOK = 0x8000,
299 TxOutOfWindow = 0x20000000,
300 TxAborted = 0x40000000,
301 TxCarrierLost = 0x80000000,
303 enum RxStatusBits {
304 RxMulticast = 0x8000,
305 RxPhysical = 0x4000,
306 RxBroadcast = 0x2000,
307 RxBadSymbol = 0x0020,
308 RxRunt = 0x0010,
309 RxTooLong = 0x0008,
310 RxCRCErr = 0x0004,
311 RxBadAlign = 0x0002,
312 RxStatusOK = 0x0001,
315 /* Bits in RxConfig. */
316 enum rx_mode_bits {
317 AcceptErr = 0x20,
318 AcceptRunt = 0x10,
319 AcceptBroadcast = 0x08,
320 AcceptMulticast = 0x04,
321 AcceptMyPhys = 0x02,
322 AcceptAllPhys = 0x01,
325 /* Bits in TxConfig. */
326 enum tx_config_bits {
327 TxIFG1 = (1 << 25), /* Interframe Gap Time */
328 TxIFG0 = (1 << 24), /* Enabling these bits violates IEEE 802.3 */
329 TxLoopBack = (1 << 18) | (1 << 17), /* enable loopback test mode */
330 TxCRC = (1 << 16), /* DISABLE appending CRC to end of Tx packets */
331 TxClearAbt = (1 << 0), /* Clear abort (WO) */
332 TxDMAShift = 8, /* DMA burst value (0-7) is shift this many bits */
334 TxVersionMask = 0x7C800000, /* mask out version bits 30-26, 23 */
337 /* Bits in Config1 */
338 enum Config1Bits {
339 Cfg1_PM_Enable = 0x01,
340 Cfg1_VPD_Enable = 0x02,
341 Cfg1_PIO = 0x04,
342 Cfg1_MMIO = 0x08,
343 Cfg1_LWAKE = 0x10,
344 Cfg1_Driver_Load = 0x20,
345 Cfg1_LED0 = 0x40,
346 Cfg1_LED1 = 0x80,
349 enum RxConfigBits {
350 /* Early Rx threshold, none or X/16 */
351 RxCfgEarlyRxNone = 0,
352 RxCfgEarlyRxShift = 24,
354 /* rx fifo threshold */
355 RxCfgFIFOShift = 13,
356 RxCfgFIFONone = (7 << RxCfgFIFOShift),
358 /* Max DMA burst */
359 RxCfgDMAShift = 8,
360 RxCfgDMAUnlimited = (7 << RxCfgDMAShift),
362 /* rx ring buffer length */
363 RxCfgRcv8K = 0,
364 RxCfgRcv16K = (1 << 11),
365 RxCfgRcv32K = (1 << 12),
366 RxCfgRcv64K = (1 << 11) | (1 << 12),
368 /* Disable packet wrap at end of Rx buffer */
369 RxNoWrap = (1 << 7),
373 /* Twister tuning parameters from RealTek.
374 Completely undocumented, but required to tune bad links. */
375 enum CSCRBits {
376 CSCR_LinkOKBit = 0x0400,
377 CSCR_LinkChangeBit = 0x0800,
378 CSCR_LinkStatusBits = 0x0f000,
379 CSCR_LinkDownOffCmd = 0x003c0,
380 CSCR_LinkDownCmd = 0x0f3c0,
384 enum Cfg9346Bits {
385 Cfg9346_Lock = 0x00,
386 Cfg9346_Unlock = 0xC0,
390 #define PARA78_default 0x78fa8388
391 #define PARA7c_default 0xcb38de43 /* param[0][3] */
392 #define PARA7c_xxx 0xcb38de43
393 static const unsigned long param[4][4] = {
394 {0xcb39de43, 0xcb39ce43, 0xfb38de03, 0xcb38de43},
395 {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
396 {0xcb39de43, 0xcb39ce43, 0xcb39ce83, 0xcb39ce83},
397 {0xbb39de43, 0xbb39ce43, 0xbb39ce83, 0xbb39ce83}
400 struct ring_info {
401 struct sk_buff *skb;
402 dma_addr_t mapping;
406 typedef enum {
407 CH_8139 = 0,
408 CH_8139_K,
409 CH_8139A,
410 CH_8139B,
411 CH_8130,
412 CH_8139C,
413 } chip_t;
416 /* directly indexed by chip_t, above */
417 static const struct {
418 const char *name;
419 u8 version; /* from RTL8139C docs */
420 u32 RxConfigMask; /* should clear the bits supported by this chip */
421 } rtl_chip_info[] = {
422 { "RTL-8139",
423 0x40,
424 0xf0fe0040, /* XXX copied from RTL8139A, verify */
427 { "RTL-8139 rev K",
428 0x60,
429 0xf0fe0040,
432 { "RTL-8139A",
433 0x70,
434 0xf0fe0040,
437 { "RTL-8139B",
438 0x78,
439 0xf0fc0040
442 { "RTL-8130",
443 0x7C,
444 0xf0fe0040, /* XXX copied from RTL8139A, verify */
447 { "RTL-8139C",
448 0x74,
449 0xf0fc0040, /* XXX copied from RTL8139B, verify */
455 struct netdrv_private {
456 board_t board;
457 void *mmio_addr;
458 int drv_flags;
459 struct pci_dev *pci_dev;
460 struct timer_list timer; /* Media selection timer. */
461 unsigned char *rx_ring;
462 unsigned int cur_rx; /* Index into the Rx buffer of next Rx pkt. */
463 unsigned int tx_flag;
464 atomic_t cur_tx;
465 atomic_t dirty_tx;
466 /* The saved address of a sent-in-place packet/buffer, for skfree(). */
467 struct ring_info tx_info[NUM_TX_DESC];
468 unsigned char *tx_buf[NUM_TX_DESC]; /* Tx bounce buffers */
469 unsigned char *tx_bufs; /* Tx bounce buffer region. */
470 dma_addr_t rx_ring_dma;
471 dma_addr_t tx_bufs_dma;
472 char phys[4]; /* MII device addresses. */
473 char twistie, twist_row, twist_col; /* Twister tune state. */
474 unsigned int full_duplex:1; /* Full-duplex operation requested. */
475 unsigned int duplex_lock:1;
476 unsigned int default_port:4; /* Last dev->if_port value. */
477 unsigned int media2:4; /* Secondary monitored media port. */
478 unsigned int medialock:1; /* Don't sense media type. */
479 unsigned int mediasense:1; /* Media sensing in progress. */
480 spinlock_t lock;
481 chip_t chipset;
484 MODULE_AUTHOR ("Jeff Garzik <jgarzik@pobox.com>");
485 MODULE_DESCRIPTION ("Skeleton for a PCI Fast Ethernet driver");
486 MODULE_LICENSE("GPL");
487 module_param(multicast_filter_limit, int, 0);
488 module_param(max_interrupt_work, int, 0);
489 module_param_array(media, int, NULL, 0);
490 MODULE_PARM_DESC (multicast_filter_limit, "pci-skeleton maximum number of filtered multicast addresses");
491 MODULE_PARM_DESC (max_interrupt_work, "pci-skeleton maximum events handled per interrupt");
492 MODULE_PARM_DESC (media, "pci-skeleton: Bits 0-3: media type, bit 17: full duplex");
494 static int read_eeprom (void *ioaddr, int location, int addr_len);
495 static int netdrv_open (struct net_device *dev);
496 static int mdio_read (struct net_device *dev, int phy_id, int location);
497 static void mdio_write (struct net_device *dev, int phy_id, int location,
498 int val);
499 static void netdrv_timer (unsigned long data);
500 static void netdrv_tx_timeout (struct net_device *dev);
501 static void netdrv_init_ring (struct net_device *dev);
502 static int netdrv_start_xmit (struct sk_buff *skb,
503 struct net_device *dev);
504 static irqreturn_t netdrv_interrupt (int irq, void *dev_instance);
505 static int netdrv_close (struct net_device *dev);
506 static int netdrv_ioctl (struct net_device *dev, struct ifreq *rq, int cmd);
507 static void netdrv_set_rx_mode (struct net_device *dev);
508 static void netdrv_hw_start (struct net_device *dev);
511 #ifdef USE_IO_OPS
513 #define NETDRV_R8(reg) inb (((unsigned long)ioaddr) + (reg))
514 #define NETDRV_R16(reg) inw (((unsigned long)ioaddr) + (reg))
515 #define NETDRV_R32(reg) ((unsigned long) inl (((unsigned long)ioaddr) + (reg)))
516 #define NETDRV_W8(reg, val8) outb ((val8), ((unsigned long)ioaddr) + (reg))
517 #define NETDRV_W16(reg, val16) outw ((val16), ((unsigned long)ioaddr) + (reg))
518 #define NETDRV_W32(reg, val32) outl ((val32), ((unsigned long)ioaddr) + (reg))
519 #define NETDRV_W8_F NETDRV_W8
520 #define NETDRV_W16_F NETDRV_W16
521 #define NETDRV_W32_F NETDRV_W32
522 #undef readb
523 #undef readw
524 #undef readl
525 #undef writeb
526 #undef writew
527 #undef writel
528 #define readb(addr) inb((unsigned long)(addr))
529 #define readw(addr) inw((unsigned long)(addr))
530 #define readl(addr) inl((unsigned long)(addr))
531 #define writeb(val,addr) outb((val),(unsigned long)(addr))
532 #define writew(val,addr) outw((val),(unsigned long)(addr))
533 #define writel(val,addr) outl((val),(unsigned long)(addr))
535 #else
537 /* write MMIO register, with flush */
538 /* Flush avoids rtl8139 bug w/ posted MMIO writes */
539 #define NETDRV_W8_F(reg, val8) do { writeb ((val8), ioaddr + (reg)); readb (ioaddr + (reg)); } while (0)
540 #define NETDRV_W16_F(reg, val16) do { writew ((val16), ioaddr + (reg)); readw (ioaddr + (reg)); } while (0)
541 #define NETDRV_W32_F(reg, val32) do { writel ((val32), ioaddr + (reg)); readl (ioaddr + (reg)); } while (0)
544 #ifdef MMIO_FLUSH_AUDIT_COMPLETE
546 /* write MMIO register */
547 #define NETDRV_W8(reg, val8) writeb ((val8), ioaddr + (reg))
548 #define NETDRV_W16(reg, val16) writew ((val16), ioaddr + (reg))
549 #define NETDRV_W32(reg, val32) writel ((val32), ioaddr + (reg))
551 #else
553 /* write MMIO register, then flush */
554 #define NETDRV_W8 NETDRV_W8_F
555 #define NETDRV_W16 NETDRV_W16_F
556 #define NETDRV_W32 NETDRV_W32_F
558 #endif /* MMIO_FLUSH_AUDIT_COMPLETE */
560 /* read MMIO register */
561 #define NETDRV_R8(reg) readb (ioaddr + (reg))
562 #define NETDRV_R16(reg) readw (ioaddr + (reg))
563 #define NETDRV_R32(reg) ((unsigned long) readl (ioaddr + (reg)))
565 #endif /* USE_IO_OPS */
568 static const u16 netdrv_intr_mask =
569 PCIErr | PCSTimeout | RxUnderrun | RxOverflow | RxFIFOOver |
570 TxErr | TxOK | RxErr | RxOK;
572 static const unsigned int netdrv_rx_config =
573 RxCfgEarlyRxNone | RxCfgRcv32K | RxNoWrap |
574 (RX_FIFO_THRESH << RxCfgFIFOShift) |
575 (RX_DMA_BURST << RxCfgDMAShift);
578 static int __devinit netdrv_init_board (struct pci_dev *pdev,
579 struct net_device **dev_out,
580 void **ioaddr_out)
582 void *ioaddr = NULL;
583 struct net_device *dev;
584 struct netdrv_private *tp;
585 int rc, i;
586 u32 pio_start, pio_end, pio_flags, pio_len;
587 unsigned long mmio_start, mmio_end, mmio_flags, mmio_len;
588 u32 tmp;
590 DPRINTK ("ENTER\n");
592 assert (pdev != NULL);
593 assert (ioaddr_out != NULL);
595 *ioaddr_out = NULL;
596 *dev_out = NULL;
598 /* dev zeroed in alloc_etherdev */
599 dev = alloc_etherdev (sizeof (*tp));
600 if (dev == NULL) {
601 dev_err(&pdev->dev, "unable to alloc new ethernet\n");
602 DPRINTK ("EXIT, returning -ENOMEM\n");
603 return -ENOMEM;
605 SET_NETDEV_DEV(dev, &pdev->dev);
606 tp = netdev_priv(dev);
608 /* enable device (incl. PCI PM wakeup), and bus-mastering */
609 rc = pci_enable_device (pdev);
610 if (rc)
611 goto err_out;
613 pio_start = pci_resource_start (pdev, 0);
614 pio_end = pci_resource_end (pdev, 0);
615 pio_flags = pci_resource_flags (pdev, 0);
616 pio_len = pci_resource_len (pdev, 0);
618 mmio_start = pci_resource_start (pdev, 1);
619 mmio_end = pci_resource_end (pdev, 1);
620 mmio_flags = pci_resource_flags (pdev, 1);
621 mmio_len = pci_resource_len (pdev, 1);
623 /* set this immediately, we need to know before
624 * we talk to the chip directly */
625 DPRINTK("PIO region size == 0x%02X\n", pio_len);
626 DPRINTK("MMIO region size == 0x%02lX\n", mmio_len);
628 /* make sure PCI base addr 0 is PIO */
629 if (!(pio_flags & IORESOURCE_IO)) {
630 dev_err(&pdev->dev, "region #0 not a PIO resource, aborting\n");
631 rc = -ENODEV;
632 goto err_out;
635 /* make sure PCI base addr 1 is MMIO */
636 if (!(mmio_flags & IORESOURCE_MEM)) {
637 dev_err(&pdev->dev, "region #1 not an MMIO resource, aborting\n");
638 rc = -ENODEV;
639 goto err_out;
642 /* check for weird/broken PCI region reporting */
643 if ((pio_len < NETDRV_MIN_IO_SIZE) ||
644 (mmio_len < NETDRV_MIN_IO_SIZE)) {
645 dev_err(&pdev->dev, "Invalid PCI region size(s), aborting\n");
646 rc = -ENODEV;
647 goto err_out;
650 rc = pci_request_regions (pdev, MODNAME);
651 if (rc)
652 goto err_out;
654 pci_set_master (pdev);
656 #ifdef USE_IO_OPS
657 ioaddr = (void *) pio_start;
658 #else
659 /* ioremap MMIO region */
660 ioaddr = ioremap (mmio_start, mmio_len);
661 if (ioaddr == NULL) {
662 dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
663 rc = -EIO;
664 goto err_out_free_res;
666 #endif /* USE_IO_OPS */
668 /* Soft reset the chip. */
669 NETDRV_W8 (ChipCmd, (NETDRV_R8 (ChipCmd) & ChipCmdClear) | CmdReset);
671 /* Check that the chip has finished the reset. */
672 for (i = 1000; i > 0; i--)
673 if ((NETDRV_R8 (ChipCmd) & CmdReset) == 0)
674 break;
675 else
676 udelay (10);
678 /* Bring the chip out of low-power mode. */
679 /* <insert device-specific code here> */
681 #ifndef USE_IO_OPS
682 /* sanity checks -- ensure PIO and MMIO registers agree */
683 assert (inb (pio_start+Config0) == readb (ioaddr+Config0));
684 assert (inb (pio_start+Config1) == readb (ioaddr+Config1));
685 assert (inb (pio_start+TxConfig) == readb (ioaddr+TxConfig));
686 assert (inb (pio_start+RxConfig) == readb (ioaddr+RxConfig));
687 #endif /* !USE_IO_OPS */
689 /* identify chip attached to board */
690 tmp = NETDRV_R8 (ChipVersion);
691 for (i = ARRAY_SIZE (rtl_chip_info) - 1; i >= 0; i--)
692 if (tmp == rtl_chip_info[i].version) {
693 tp->chipset = i;
694 goto match;
697 /* if unknown chip, assume array element #0, original RTL-8139 in this case */
698 dev_printk (KERN_DEBUG, &pdev->dev,
699 "unknown chip version, assuming RTL-8139\n");
700 dev_printk (KERN_DEBUG, &pdev->dev, "TxConfig = 0x%lx\n",
701 NETDRV_R32 (TxConfig));
702 tp->chipset = 0;
704 match:
705 DPRINTK ("chipset id (%d) == index %d, '%s'\n",
706 tmp,
707 tp->chipset,
708 rtl_chip_info[tp->chipset].name);
710 rc = register_netdev (dev);
711 if (rc)
712 goto err_out_unmap;
714 DPRINTK ("EXIT, returning 0\n");
715 *ioaddr_out = ioaddr;
716 *dev_out = dev;
717 return 0;
719 err_out_unmap:
720 #ifndef USE_IO_OPS
721 iounmap(ioaddr);
722 err_out_free_res:
723 #endif
724 pci_release_regions (pdev);
725 err_out:
726 free_netdev (dev);
727 DPRINTK ("EXIT, returning %d\n", rc);
728 return rc;
731 static const struct net_device_ops netdrv_netdev_ops = {
732 .ndo_open = netdrv_open,
733 .ndo_stop = netdrv_close,
734 .ndo_start_xmit = netdrv_start_xmit,
735 .ndo_set_multicast_list = netdrv_set_rx_mode,
736 .ndo_do_ioctl = netdrv_ioctl,
737 .ndo_tx_timeout = netdrv_tx_timeout,
738 .ndo_change_mtu = eth_change_mtu,
739 .ndo_validate_addr = eth_validate_addr,
740 .ndo_set_mac_address = eth_mac_addr,
743 static int __devinit netdrv_init_one (struct pci_dev *pdev,
744 const struct pci_device_id *ent)
746 struct net_device *dev = NULL;
747 struct netdrv_private *tp;
748 int i, addr_len, option;
749 void *ioaddr = NULL;
750 static int board_idx = -1;
752 /* when built into the kernel, we only print version if device is found */
753 #ifndef MODULE
754 static int printed_version;
755 if (!printed_version++)
756 printk(version);
757 #endif
759 DPRINTK ("ENTER\n");
761 assert (pdev != NULL);
762 assert (ent != NULL);
764 board_idx++;
766 i = netdrv_init_board (pdev, &dev, &ioaddr);
767 if (i < 0) {
768 DPRINTK ("EXIT, returning %d\n", i);
769 return i;
772 tp = netdev_priv(dev);
774 assert (ioaddr != NULL);
775 assert (dev != NULL);
776 assert (tp != NULL);
778 addr_len = read_eeprom (ioaddr, 0, 8) == 0x8129 ? 8 : 6;
779 for (i = 0; i < 3; i++)
780 ((u16 *) (dev->dev_addr))[i] =
781 le16_to_cpu (read_eeprom (ioaddr, i + 7, addr_len));
783 dev->netdev_ops = &netdrv_netdev_ops;
784 dev->watchdog_timeo = TX_TIMEOUT;
786 dev->irq = pdev->irq;
787 dev->base_addr = (unsigned long) ioaddr;
789 /* netdev_priv()/tp zeroed and aligned in alloc_etherdev */
790 tp = netdev_priv(dev);
792 /* note: tp->chipset set in netdrv_init_board */
793 tp->drv_flags = PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
794 PCI_COMMAND_MASTER | NETDRV_CAPS;
795 tp->pci_dev = pdev;
796 tp->board = ent->driver_data;
797 tp->mmio_addr = ioaddr;
798 spin_lock_init(&tp->lock);
800 pci_set_drvdata(pdev, dev);
802 tp->phys[0] = 32;
804 printk (KERN_INFO "%s: %s at 0x%lx, %pM IRQ %d\n",
805 dev->name,
806 board_info[ent->driver_data].name,
807 dev->base_addr,
808 dev->dev_addr,
809 dev->irq);
811 printk (KERN_DEBUG "%s: Identified 8139 chip type '%s'\n",
812 dev->name, rtl_chip_info[tp->chipset].name);
814 /* Put the chip into low-power mode. */
815 NETDRV_W8_F (Cfg9346, Cfg9346_Unlock);
817 /* The lower four bits are the media type. */
818 option = (board_idx > 7) ? 0 : media[board_idx];
819 if (option > 0) {
820 tp->full_duplex = (option & 0x200) ? 1 : 0;
821 tp->default_port = option & 15;
822 if (tp->default_port)
823 tp->medialock = 1;
826 if (tp->full_duplex) {
827 printk (KERN_INFO
828 "%s: Media type forced to Full Duplex.\n",
829 dev->name);
830 mdio_write (dev, tp->phys[0], MII_ADVERTISE, ADVERTISE_FULL);
831 tp->duplex_lock = 1;
834 DPRINTK ("EXIT - returning 0\n");
835 return 0;
839 static void __devexit netdrv_remove_one (struct pci_dev *pdev)
841 struct net_device *dev = pci_get_drvdata (pdev);
842 struct netdrv_private *np;
844 DPRINTK ("ENTER\n");
846 assert (dev != NULL);
848 np = netdev_priv(dev);
849 assert (np != NULL);
851 unregister_netdev (dev);
853 #ifndef USE_IO_OPS
854 iounmap (np->mmio_addr);
855 #endif /* !USE_IO_OPS */
857 pci_release_regions (pdev);
859 free_netdev (dev);
861 pci_set_drvdata (pdev, NULL);
863 pci_disable_device (pdev);
865 DPRINTK ("EXIT\n");
869 /* Serial EEPROM section. */
871 /* EEPROM_Ctrl bits. */
872 #define EE_SHIFT_CLK 0x04 /* EEPROM shift clock. */
873 #define EE_CS 0x08 /* EEPROM chip select. */
874 #define EE_DATA_WRITE 0x02 /* EEPROM chip data in. */
875 #define EE_WRITE_0 0x00
876 #define EE_WRITE_1 0x02
877 #define EE_DATA_READ 0x01 /* EEPROM chip data out. */
878 #define EE_ENB (0x80 | EE_CS)
880 /* Delay between EEPROM clock transitions.
881 No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
884 #define eeprom_delay() readl(ee_addr)
886 /* The EEPROM commands include the alway-set leading bit. */
887 #define EE_WRITE_CMD (5)
888 #define EE_READ_CMD (6)
889 #define EE_ERASE_CMD (7)
891 static int __devinit read_eeprom (void *ioaddr, int location, int addr_len)
893 int i;
894 unsigned retval = 0;
895 void *ee_addr = ioaddr + Cfg9346;
896 int read_cmd = location | (EE_READ_CMD << addr_len);
898 DPRINTK ("ENTER\n");
900 writeb (EE_ENB & ~EE_CS, ee_addr);
901 writeb (EE_ENB, ee_addr);
902 eeprom_delay ();
904 /* Shift the read command bits out. */
905 for (i = 4 + addr_len; i >= 0; i--) {
906 int dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
907 writeb (EE_ENB | dataval, ee_addr);
908 eeprom_delay ();
909 writeb (EE_ENB | dataval | EE_SHIFT_CLK, ee_addr);
910 eeprom_delay ();
912 writeb (EE_ENB, ee_addr);
913 eeprom_delay ();
915 for (i = 16; i > 0; i--) {
916 writeb (EE_ENB | EE_SHIFT_CLK, ee_addr);
917 eeprom_delay ();
918 retval =
919 (retval << 1) | ((readb (ee_addr) & EE_DATA_READ) ? 1 :
921 writeb (EE_ENB, ee_addr);
922 eeprom_delay ();
925 /* Terminate the EEPROM access. */
926 writeb (~EE_CS, ee_addr);
927 eeprom_delay ();
929 DPRINTK ("EXIT - returning %d\n", retval);
930 return retval;
933 /* MII serial management: mostly bogus for now. */
934 /* Read and write the MII management registers using software-generated
935 serial MDIO protocol.
936 The maximum data clock rate is 2.5 Mhz. The minimum timing is usually
937 met by back-to-back PCI I/O cycles, but we insert a delay to avoid
938 "overclocking" issues. */
939 #define MDIO_DIR 0x80
940 #define MDIO_DATA_OUT 0x04
941 #define MDIO_DATA_IN 0x02
942 #define MDIO_CLK 0x01
943 #define MDIO_WRITE0 (MDIO_DIR)
944 #define MDIO_WRITE1 (MDIO_DIR | MDIO_DATA_OUT)
946 #define mdio_delay() readb(mdio_addr)
949 static char mii_2_8139_map[8] = {
950 BasicModeCtrl,
951 BasicModeStatus,
954 NWayAdvert,
955 NWayLPAR,
956 NWayExpansion,
961 /* Syncronize the MII management interface by shifting 32 one bits out. */
962 static void mdio_sync (void *mdio_addr)
964 int i;
966 DPRINTK ("ENTER\n");
968 for (i = 32; i >= 0; i--) {
969 writeb (MDIO_WRITE1, mdio_addr);
970 mdio_delay ();
971 writeb (MDIO_WRITE1 | MDIO_CLK, mdio_addr);
972 mdio_delay ();
975 DPRINTK ("EXIT\n");
979 static int mdio_read (struct net_device *dev, int phy_id, int location)
981 struct netdrv_private *tp = netdev_priv(dev);
982 void *mdio_addr = tp->mmio_addr + Config4;
983 int mii_cmd = (0xf6 << 10) | (phy_id << 5) | location;
984 int retval = 0;
985 int i;
987 DPRINTK ("ENTER\n");
989 if (phy_id > 31) { /* Really a 8139. Use internal registers. */
990 DPRINTK ("EXIT after directly using 8139 internal regs\n");
991 return location < 8 && mii_2_8139_map[location] ?
992 readw (tp->mmio_addr + mii_2_8139_map[location]) : 0;
994 mdio_sync (mdio_addr);
995 /* Shift the read command bits out. */
996 for (i = 15; i >= 0; i--) {
997 int dataval = (mii_cmd & (1 << i)) ? MDIO_DATA_OUT : 0;
999 writeb (MDIO_DIR | dataval, mdio_addr);
1000 mdio_delay ();
1001 writeb (MDIO_DIR | dataval | MDIO_CLK, mdio_addr);
1002 mdio_delay ();
1005 /* Read the two transition, 16 data, and wire-idle bits. */
1006 for (i = 19; i > 0; i--) {
1007 writeb (0, mdio_addr);
1008 mdio_delay ();
1009 retval =
1010 (retval << 1) | ((readb (mdio_addr) & MDIO_DATA_IN) ? 1
1011 : 0);
1012 writeb (MDIO_CLK, mdio_addr);
1013 mdio_delay ();
1016 DPRINTK ("EXIT, returning %d\n", (retval >> 1) & 0xffff);
1017 return (retval >> 1) & 0xffff;
1021 static void mdio_write (struct net_device *dev, int phy_id, int location,
1022 int value)
1024 struct netdrv_private *tp = netdev_priv(dev);
1025 void *mdio_addr = tp->mmio_addr + Config4;
1026 int mii_cmd =
1027 (0x5002 << 16) | (phy_id << 23) | (location << 18) | value;
1028 int i;
1030 DPRINTK ("ENTER\n");
1032 if (phy_id > 31) { /* Really a 8139. Use internal registers. */
1033 if (location < 8 && mii_2_8139_map[location]) {
1034 writew (value,
1035 tp->mmio_addr + mii_2_8139_map[location]);
1036 readw (tp->mmio_addr + mii_2_8139_map[location]);
1038 DPRINTK ("EXIT after directly using 8139 internal regs\n");
1039 return;
1041 mdio_sync (mdio_addr);
1043 /* Shift the command bits out. */
1044 for (i = 31; i >= 0; i--) {
1045 int dataval =
1046 (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0;
1047 writeb (dataval, mdio_addr);
1048 mdio_delay ();
1049 writeb (dataval | MDIO_CLK, mdio_addr);
1050 mdio_delay ();
1053 /* Clear out extra bits. */
1054 for (i = 2; i > 0; i--) {
1055 writeb (0, mdio_addr);
1056 mdio_delay ();
1057 writeb (MDIO_CLK, mdio_addr);
1058 mdio_delay ();
1061 DPRINTK ("EXIT\n");
1065 static int netdrv_open (struct net_device *dev)
1067 struct netdrv_private *tp = netdev_priv(dev);
1068 int retval;
1069 #ifdef NETDRV_DEBUG
1070 void *ioaddr = tp->mmio_addr;
1071 #endif
1073 DPRINTK ("ENTER\n");
1075 retval = request_irq (dev->irq, netdrv_interrupt, IRQF_SHARED, dev->name, dev);
1076 if (retval) {
1077 DPRINTK ("EXIT, returning %d\n", retval);
1078 return retval;
1081 tp->tx_bufs = pci_alloc_consistent(tp->pci_dev, TX_BUF_TOT_LEN,
1082 &tp->tx_bufs_dma);
1083 tp->rx_ring = pci_alloc_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
1084 &tp->rx_ring_dma);
1085 if (tp->tx_bufs == NULL || tp->rx_ring == NULL) {
1086 free_irq(dev->irq, dev);
1088 if (tp->tx_bufs)
1089 pci_free_consistent(tp->pci_dev, TX_BUF_TOT_LEN,
1090 tp->tx_bufs, tp->tx_bufs_dma);
1091 if (tp->rx_ring)
1092 pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
1093 tp->rx_ring, tp->rx_ring_dma);
1095 DPRINTK ("EXIT, returning -ENOMEM\n");
1096 return -ENOMEM;
1100 tp->full_duplex = tp->duplex_lock;
1101 tp->tx_flag = (TX_FIFO_THRESH << 11) & 0x003f0000;
1103 netdrv_init_ring (dev);
1104 netdrv_hw_start (dev);
1106 DPRINTK ("%s: netdrv_open() ioaddr %#lx IRQ %d"
1107 " GP Pins %2.2x %s-duplex.\n",
1108 dev->name, pci_resource_start (tp->pci_dev, 1),
1109 dev->irq, NETDRV_R8 (MediaStatus),
1110 tp->full_duplex ? "full" : "half");
1112 /* Set the timer to switch to check for link beat and perhaps switch
1113 to an alternate media type. */
1114 init_timer (&tp->timer);
1115 tp->timer.expires = jiffies + 3 * HZ;
1116 tp->timer.data = (unsigned long) dev;
1117 tp->timer.function = &netdrv_timer;
1118 add_timer (&tp->timer);
1120 DPRINTK ("EXIT, returning 0\n");
1121 return 0;
1125 /* Start the hardware at open or resume. */
1126 static void netdrv_hw_start (struct net_device *dev)
1128 struct netdrv_private *tp = netdev_priv(dev);
1129 void *ioaddr = tp->mmio_addr;
1130 u32 i;
1132 DPRINTK ("ENTER\n");
1134 /* Soft reset the chip. */
1135 NETDRV_W8 (ChipCmd, (NETDRV_R8 (ChipCmd) & ChipCmdClear) | CmdReset);
1136 udelay (100);
1138 /* Check that the chip has finished the reset. */
1139 for (i = 1000; i > 0; i--)
1140 if ((NETDRV_R8 (ChipCmd) & CmdReset) == 0)
1141 break;
1143 /* Restore our idea of the MAC address. */
1144 NETDRV_W32_F (MAC0 + 0, cpu_to_le32 (*(u32 *) (dev->dev_addr + 0)));
1145 NETDRV_W32_F (MAC0 + 4, cpu_to_le32 (*(u32 *) (dev->dev_addr + 4)));
1147 /* Must enable Tx/Rx before setting transfer thresholds! */
1148 NETDRV_W8_F (ChipCmd, (NETDRV_R8 (ChipCmd) & ChipCmdClear) |
1149 CmdRxEnb | CmdTxEnb);
1151 i = netdrv_rx_config |
1152 (NETDRV_R32 (RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
1153 NETDRV_W32_F (RxConfig, i);
1155 /* Check this value: the documentation for IFG contradicts ifself. */
1156 NETDRV_W32 (TxConfig, (TX_DMA_BURST << TxDMAShift));
1158 /* unlock Config[01234] and BMCR register writes */
1159 NETDRV_W8_F (Cfg9346, Cfg9346_Unlock);
1160 udelay (10);
1162 tp->cur_rx = 0;
1164 /* Lock Config[01234] and BMCR register writes */
1165 NETDRV_W8_F (Cfg9346, Cfg9346_Lock);
1166 udelay (10);
1168 /* init Rx ring buffer DMA address */
1169 NETDRV_W32_F (RxBuf, tp->rx_ring_dma);
1171 /* init Tx buffer DMA addresses */
1172 for (i = 0; i < NUM_TX_DESC; i++)
1173 NETDRV_W32_F (TxAddr0 + (i * 4), tp->tx_bufs_dma + (tp->tx_buf[i] - tp->tx_bufs));
1175 NETDRV_W32_F (RxMissed, 0);
1177 netdrv_set_rx_mode (dev);
1179 /* no early-rx interrupts */
1180 NETDRV_W16 (MultiIntr, NETDRV_R16 (MultiIntr) & MultiIntrClear);
1182 /* make sure RxTx has started */
1183 NETDRV_W8_F (ChipCmd, (NETDRV_R8 (ChipCmd) & ChipCmdClear) |
1184 CmdRxEnb | CmdTxEnb);
1186 /* Enable all known interrupts by setting the interrupt mask. */
1187 NETDRV_W16_F (IntrMask, netdrv_intr_mask);
1189 netif_start_queue (dev);
1191 DPRINTK ("EXIT\n");
1195 /* Initialize the Rx and Tx rings, along with various 'dev' bits. */
1196 static void netdrv_init_ring (struct net_device *dev)
1198 struct netdrv_private *tp = netdev_priv(dev);
1199 int i;
1201 DPRINTK ("ENTER\n");
1203 tp->cur_rx = 0;
1204 atomic_set (&tp->cur_tx, 0);
1205 atomic_set (&tp->dirty_tx, 0);
1207 for (i = 0; i < NUM_TX_DESC; i++) {
1208 tp->tx_info[i].skb = NULL;
1209 tp->tx_info[i].mapping = 0;
1210 tp->tx_buf[i] = &tp->tx_bufs[i * TX_BUF_SIZE];
1213 DPRINTK ("EXIT\n");
1217 static void netdrv_timer (unsigned long data)
1219 struct net_device *dev = (struct net_device *) data;
1220 struct netdrv_private *tp = netdev_priv(dev);
1221 void *ioaddr = tp->mmio_addr;
1222 int next_tick = 60 * HZ;
1223 int mii_lpa;
1225 mii_lpa = mdio_read (dev, tp->phys[0], MII_LPA);
1227 if (!tp->duplex_lock && mii_lpa != 0xffff) {
1228 int duplex = (mii_lpa & LPA_100FULL)
1229 || (mii_lpa & 0x01C0) == 0x0040;
1230 if (tp->full_duplex != duplex) {
1231 tp->full_duplex = duplex;
1232 printk (KERN_INFO
1233 "%s: Setting %s-duplex based on MII #%d link"
1234 " partner ability of %4.4x.\n", dev->name,
1235 tp->full_duplex ? "full" : "half",
1236 tp->phys[0], mii_lpa);
1237 NETDRV_W8 (Cfg9346, Cfg9346_Unlock);
1238 NETDRV_W8 (Config1, tp->full_duplex ? 0x60 : 0x20);
1239 NETDRV_W8 (Cfg9346, Cfg9346_Lock);
1243 DPRINTK ("%s: Media selection tick, Link partner %4.4x.\n",
1244 dev->name, NETDRV_R16 (NWayLPAR));
1245 DPRINTK ("%s: Other registers are IntMask %4.4x IntStatus %4.4x"
1246 " RxStatus %4.4x.\n", dev->name,
1247 NETDRV_R16 (IntrMask),
1248 NETDRV_R16 (IntrStatus),
1249 NETDRV_R32 (RxEarlyStatus));
1250 DPRINTK ("%s: Chip config %2.2x %2.2x.\n",
1251 dev->name, NETDRV_R8 (Config0),
1252 NETDRV_R8 (Config1));
1254 tp->timer.expires = jiffies + next_tick;
1255 add_timer (&tp->timer);
1259 static void netdrv_tx_clear (struct net_device *dev)
1261 int i;
1262 struct netdrv_private *tp = netdev_priv(dev);
1264 atomic_set (&tp->cur_tx, 0);
1265 atomic_set (&tp->dirty_tx, 0);
1267 /* Dump the unsent Tx packets. */
1268 for (i = 0; i < NUM_TX_DESC; i++) {
1269 struct ring_info *rp = &tp->tx_info[i];
1270 if (rp->mapping != 0) {
1271 pci_unmap_single (tp->pci_dev, rp->mapping,
1272 rp->skb->len, PCI_DMA_TODEVICE);
1273 rp->mapping = 0;
1275 if (rp->skb) {
1276 dev_kfree_skb (rp->skb);
1277 rp->skb = NULL;
1278 dev->stats.tx_dropped++;
1284 static void netdrv_tx_timeout (struct net_device *dev)
1286 struct netdrv_private *tp = netdev_priv(dev);
1287 void *ioaddr = tp->mmio_addr;
1288 int i;
1289 u8 tmp8;
1290 unsigned long flags;
1292 DPRINTK ("%s: Transmit timeout, status %2.2x %4.4x "
1293 "media %2.2x.\n", dev->name,
1294 NETDRV_R8 (ChipCmd),
1295 NETDRV_R16 (IntrStatus),
1296 NETDRV_R8 (MediaStatus));
1298 /* disable Tx ASAP, if not already */
1299 tmp8 = NETDRV_R8 (ChipCmd);
1300 if (tmp8 & CmdTxEnb)
1301 NETDRV_W8 (ChipCmd, tmp8 & ~CmdTxEnb);
1303 /* Disable interrupts by clearing the interrupt mask. */
1304 NETDRV_W16 (IntrMask, 0x0000);
1306 /* Emit info to figure out what went wrong. */
1307 printk (KERN_DEBUG "%s: Tx queue start entry %d dirty entry %d.\n",
1308 dev->name, atomic_read (&tp->cur_tx),
1309 atomic_read (&tp->dirty_tx));
1310 for (i = 0; i < NUM_TX_DESC; i++)
1311 printk (KERN_DEBUG "%s: Tx descriptor %d is %8.8lx.%s\n",
1312 dev->name, i, NETDRV_R32 (TxStatus0 + (i * 4)),
1313 i == atomic_read (&tp->dirty_tx) % NUM_TX_DESC ?
1314 " (queue head)" : "");
1316 /* Stop a shared interrupt from scavenging while we are. */
1317 spin_lock_irqsave (&tp->lock, flags);
1319 netdrv_tx_clear (dev);
1321 spin_unlock_irqrestore (&tp->lock, flags);
1323 /* ...and finally, reset everything */
1324 netdrv_hw_start (dev);
1326 netif_wake_queue (dev);
1331 static int netdrv_start_xmit (struct sk_buff *skb, struct net_device *dev)
1333 struct netdrv_private *tp = netdev_priv(dev);
1334 void *ioaddr = tp->mmio_addr;
1335 int entry;
1337 /* Calculate the next Tx descriptor entry. */
1338 entry = atomic_read (&tp->cur_tx) % NUM_TX_DESC;
1340 assert (tp->tx_info[entry].skb == NULL);
1341 assert (tp->tx_info[entry].mapping == 0);
1343 tp->tx_info[entry].skb = skb;
1344 /* tp->tx_info[entry].mapping = 0; */
1345 skb_copy_from_linear_data(skb, tp->tx_buf[entry], skb->len);
1347 /* Note: the chip doesn't have auto-pad! */
1348 NETDRV_W32 (TxStatus0 + (entry * sizeof(u32)),
1349 tp->tx_flag | (skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN));
1351 dev->trans_start = jiffies;
1352 atomic_inc (&tp->cur_tx);
1353 if ((atomic_read (&tp->cur_tx) - atomic_read (&tp->dirty_tx)) >= NUM_TX_DESC)
1354 netif_stop_queue (dev);
1356 DPRINTK ("%s: Queued Tx packet at %p size %u to slot %d.\n",
1357 dev->name, skb->data, skb->len, entry);
1359 return 0;
1363 static void netdrv_tx_interrupt (struct net_device *dev,
1364 struct netdrv_private *tp,
1365 void *ioaddr)
1367 int cur_tx, dirty_tx, tx_left;
1369 assert (dev != NULL);
1370 assert (tp != NULL);
1371 assert (ioaddr != NULL);
1373 dirty_tx = atomic_read (&tp->dirty_tx);
1375 cur_tx = atomic_read (&tp->cur_tx);
1376 tx_left = cur_tx - dirty_tx;
1377 while (tx_left > 0) {
1378 int entry = dirty_tx % NUM_TX_DESC;
1379 int txstatus;
1381 txstatus = NETDRV_R32 (TxStatus0 + (entry * sizeof (u32)));
1383 if (!(txstatus & (TxStatOK | TxUnderrun | TxAborted)))
1384 break; /* It still hasn't been Txed */
1386 /* Note: TxCarrierLost is always asserted at 100mbps. */
1387 if (txstatus & (TxOutOfWindow | TxAborted)) {
1388 /* There was an major error, log it. */
1389 DPRINTK ("%s: Transmit error, Tx status %8.8x.\n",
1390 dev->name, txstatus);
1391 dev->stats.tx_errors++;
1392 if (txstatus & TxAborted) {
1393 dev->stats.tx_aborted_errors++;
1394 NETDRV_W32 (TxConfig, TxClearAbt | (TX_DMA_BURST << TxDMAShift));
1396 if (txstatus & TxCarrierLost)
1397 dev->stats.tx_carrier_errors++;
1398 if (txstatus & TxOutOfWindow)
1399 dev->stats.tx_window_errors++;
1400 } else {
1401 if (txstatus & TxUnderrun) {
1402 /* Add 64 to the Tx FIFO threshold. */
1403 if (tp->tx_flag < 0x00300000)
1404 tp->tx_flag += 0x00020000;
1405 dev->stats.tx_fifo_errors++;
1407 dev->stats.collisions += (txstatus >> 24) & 15;
1408 dev->stats.tx_bytes += txstatus & 0x7ff;
1409 dev->stats.tx_packets++;
1412 /* Free the original skb. */
1413 if (tp->tx_info[entry].mapping != 0) {
1414 pci_unmap_single(tp->pci_dev,
1415 tp->tx_info[entry].mapping,
1416 tp->tx_info[entry].skb->len,
1417 PCI_DMA_TODEVICE);
1418 tp->tx_info[entry].mapping = 0;
1420 dev_kfree_skb_irq (tp->tx_info[entry].skb);
1421 tp->tx_info[entry].skb = NULL;
1422 dirty_tx++;
1423 if (dirty_tx < 0) { /* handle signed int overflow */
1424 atomic_sub (cur_tx, &tp->cur_tx); /* XXX racy? */
1425 dirty_tx = cur_tx - tx_left + 1;
1427 if (netif_queue_stopped (dev))
1428 netif_wake_queue (dev);
1430 cur_tx = atomic_read (&tp->cur_tx);
1431 tx_left = cur_tx - dirty_tx;
1435 #ifndef NETDRV_NDEBUG
1436 if (atomic_read (&tp->cur_tx) - dirty_tx > NUM_TX_DESC) {
1437 printk (KERN_ERR
1438 "%s: Out-of-sync dirty pointer, %d vs. %d.\n",
1439 dev->name, dirty_tx, atomic_read (&tp->cur_tx));
1440 dirty_tx += NUM_TX_DESC;
1442 #endif /* NETDRV_NDEBUG */
1444 atomic_set (&tp->dirty_tx, dirty_tx);
1448 /* TODO: clean this up! Rx reset need not be this intensive */
1449 static void netdrv_rx_err (u32 rx_status, struct net_device *dev,
1450 struct netdrv_private *tp, void *ioaddr)
1452 u8 tmp8;
1453 int tmp_work = 1000;
1455 DPRINTK ("%s: Ethernet frame had errors, status %8.8x.\n",
1456 dev->name, rx_status);
1457 if (rx_status & RxTooLong) {
1458 DPRINTK ("%s: Oversized Ethernet frame, status %4.4x!\n",
1459 dev->name, rx_status);
1460 /* A.C.: The chip hangs here. */
1462 dev->stats.rx_errors++;
1463 if (rx_status & (RxBadSymbol | RxBadAlign))
1464 dev->stats.rx_frame_errors++;
1465 if (rx_status & (RxRunt | RxTooLong))
1466 dev->stats.rx_length_errors++;
1467 if (rx_status & RxCRCErr)
1468 dev->stats.rx_crc_errors++;
1469 /* Reset the receiver, based on RealTek recommendation. (Bug?) */
1470 tp->cur_rx = 0;
1472 /* disable receive */
1473 tmp8 = NETDRV_R8 (ChipCmd) & ChipCmdClear;
1474 NETDRV_W8_F (ChipCmd, tmp8 | CmdTxEnb);
1476 /* A.C.: Reset the multicast list. */
1477 netdrv_set_rx_mode (dev);
1479 /* XXX potentially temporary hack to
1480 * restart hung receiver */
1481 while (--tmp_work > 0) {
1482 tmp8 = NETDRV_R8 (ChipCmd);
1483 if ((tmp8 & CmdRxEnb) && (tmp8 & CmdTxEnb))
1484 break;
1485 NETDRV_W8_F (ChipCmd,
1486 (tmp8 & ChipCmdClear) | CmdRxEnb | CmdTxEnb);
1489 /* G.S.: Re-enable receiver */
1490 /* XXX temporary hack to work around receiver hang */
1491 netdrv_set_rx_mode (dev);
1493 if (tmp_work <= 0)
1494 printk (KERN_WARNING PFX "tx/rx enable wait too long\n");
1498 /* The data sheet doesn't describe the Rx ring at all, so I'm guessing at the
1499 field alignments and semantics. */
1500 static void netdrv_rx_interrupt (struct net_device *dev,
1501 struct netdrv_private *tp, void *ioaddr)
1503 unsigned char *rx_ring;
1504 u16 cur_rx;
1506 assert (dev != NULL);
1507 assert (tp != NULL);
1508 assert (ioaddr != NULL);
1510 rx_ring = tp->rx_ring;
1511 cur_rx = tp->cur_rx;
1513 DPRINTK ("%s: In netdrv_rx(), current %4.4x BufAddr %4.4x,"
1514 " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx,
1515 NETDRV_R16 (RxBufAddr),
1516 NETDRV_R16 (RxBufPtr), NETDRV_R8 (ChipCmd));
1518 while ((NETDRV_R8 (ChipCmd) & RxBufEmpty) == 0) {
1519 int ring_offset = cur_rx % RX_BUF_LEN;
1520 u32 rx_status;
1521 unsigned int rx_size;
1522 unsigned int pkt_size;
1523 struct sk_buff *skb;
1525 /* read size+status of next frame from DMA ring buffer */
1526 rx_status = le32_to_cpu (*(u32 *) (rx_ring + ring_offset));
1527 rx_size = rx_status >> 16;
1528 pkt_size = rx_size - 4;
1530 DPRINTK ("%s: netdrv_rx() status %4.4x, size %4.4x,"
1531 " cur %4.4x.\n", dev->name, rx_status,
1532 rx_size, cur_rx);
1533 #if defined(NETDRV_DEBUG) && (NETDRV_DEBUG > 2)
1535 int i;
1536 DPRINTK ("%s: Frame contents ", dev->name);
1537 for (i = 0; i < 70; i++)
1538 printk (" %2.2x",
1539 rx_ring[ring_offset + i]);
1540 printk (".\n");
1542 #endif
1544 /* If Rx err or invalid rx_size/rx_status received
1545 * (which happens if we get lost in the ring),
1546 * Rx process gets reset, so we abort any further
1547 * Rx processing.
1549 if ((rx_size > (MAX_ETH_FRAME_SIZE+4)) ||
1550 (!(rx_status & RxStatusOK))) {
1551 netdrv_rx_err (rx_status, dev, tp, ioaddr);
1552 return;
1555 /* Malloc up new buffer, compatible with net-2e. */
1556 /* Omit the four octet CRC from the length. */
1558 /* TODO: consider allocating skb's outside of
1559 * interrupt context, both to speed interrupt processing,
1560 * and also to reduce the chances of having to
1561 * drop packets here under memory pressure.
1564 skb = dev_alloc_skb (pkt_size + 2);
1565 if (skb) {
1566 skb_reserve (skb, 2); /* 16 byte align the IP fields. */
1568 skb_copy_to_linear_data (skb, &rx_ring[ring_offset + 4], pkt_size);
1569 skb_put (skb, pkt_size);
1571 skb->protocol = eth_type_trans (skb, dev);
1572 netif_rx (skb);
1573 dev->stats.rx_bytes += pkt_size;
1574 dev->stats.rx_packets++;
1575 } else {
1576 printk (KERN_WARNING
1577 "%s: Memory squeeze, dropping packet.\n",
1578 dev->name);
1579 dev->stats.rx_dropped++;
1582 cur_rx = (cur_rx + rx_size + 4 + 3) & ~3;
1583 NETDRV_W16_F (RxBufPtr, cur_rx - 16);
1586 DPRINTK ("%s: Done netdrv_rx(), current %4.4x BufAddr %4.4x,"
1587 " free to %4.4x, Cmd %2.2x.\n", dev->name, cur_rx,
1588 NETDRV_R16 (RxBufAddr),
1589 NETDRV_R16 (RxBufPtr), NETDRV_R8 (ChipCmd));
1591 tp->cur_rx = cur_rx;
1595 static void netdrv_weird_interrupt (struct net_device *dev,
1596 struct netdrv_private *tp,
1597 void *ioaddr,
1598 int status, int link_changed)
1600 printk (KERN_DEBUG "%s: Abnormal interrupt, status %8.8x.\n",
1601 dev->name, status);
1603 assert (dev != NULL);
1604 assert (tp != NULL);
1605 assert (ioaddr != NULL);
1607 /* Update the error count. */
1608 dev->stats.rx_missed_errors += NETDRV_R32 (RxMissed);
1609 NETDRV_W32 (RxMissed, 0);
1611 if ((status & RxUnderrun) && link_changed &&
1612 (tp->drv_flags & HAS_LNK_CHNG)) {
1613 /* Really link-change on new chips. */
1614 int lpar = NETDRV_R16 (NWayLPAR);
1615 int duplex = (lpar & 0x0100) || (lpar & 0x01C0) == 0x0040
1616 || tp->duplex_lock;
1617 if (tp->full_duplex != duplex) {
1618 tp->full_duplex = duplex;
1619 NETDRV_W8 (Cfg9346, Cfg9346_Unlock);
1620 NETDRV_W8 (Config1, tp->full_duplex ? 0x60 : 0x20);
1621 NETDRV_W8 (Cfg9346, Cfg9346_Lock);
1623 status &= ~RxUnderrun;
1626 /* XXX along with netdrv_rx_err, are we double-counting errors? */
1627 if (status &
1628 (RxUnderrun | RxOverflow | RxErr | RxFIFOOver))
1629 dev->stats.rx_errors++;
1631 if (status & (PCSTimeout))
1632 dev->stats.rx_length_errors++;
1633 if (status & (RxUnderrun | RxFIFOOver))
1634 dev->stats.rx_fifo_errors++;
1635 if (status & RxOverflow) {
1636 dev->stats.rx_over_errors++;
1637 tp->cur_rx = NETDRV_R16 (RxBufAddr) % RX_BUF_LEN;
1638 NETDRV_W16_F (RxBufPtr, tp->cur_rx - 16);
1640 if (status & PCIErr) {
1641 u16 pci_cmd_status;
1642 pci_read_config_word (tp->pci_dev, PCI_STATUS, &pci_cmd_status);
1644 printk (KERN_ERR "%s: PCI Bus error %4.4x.\n",
1645 dev->name, pci_cmd_status);
1650 /* The interrupt handler does all of the Rx thread work and cleans up
1651 after the Tx thread. */
1652 static irqreturn_t netdrv_interrupt (int irq, void *dev_instance)
1654 struct net_device *dev = (struct net_device *) dev_instance;
1655 struct netdrv_private *tp = netdev_priv(dev);
1656 int boguscnt = max_interrupt_work;
1657 void *ioaddr = tp->mmio_addr;
1658 int status = 0, link_changed = 0; /* avoid bogus "uninit" warning */
1659 int handled = 0;
1661 spin_lock (&tp->lock);
1663 do {
1664 status = NETDRV_R16 (IntrStatus);
1666 /* h/w no longer present (hotplug?) or major error, bail */
1667 if (status == 0xFFFF)
1668 break;
1670 handled = 1;
1671 /* Acknowledge all of the current interrupt sources ASAP */
1672 NETDRV_W16_F (IntrStatus, status);
1674 DPRINTK ("%s: interrupt status=%#4.4x new intstat=%#4.4x.\n",
1675 dev->name, status,
1676 NETDRV_R16 (IntrStatus));
1678 if ((status &
1679 (PCIErr | PCSTimeout | RxUnderrun | RxOverflow |
1680 RxFIFOOver | TxErr | TxOK | RxErr | RxOK)) == 0)
1681 break;
1683 /* Check uncommon events with one test. */
1684 if (status & (PCIErr | PCSTimeout | RxUnderrun | RxOverflow |
1685 RxFIFOOver | TxErr | RxErr))
1686 netdrv_weird_interrupt (dev, tp, ioaddr,
1687 status, link_changed);
1689 if (status & (RxOK | RxUnderrun | RxOverflow | RxFIFOOver)) /* Rx interrupt */
1690 netdrv_rx_interrupt (dev, tp, ioaddr);
1692 if (status & (TxOK | TxErr))
1693 netdrv_tx_interrupt (dev, tp, ioaddr);
1695 boguscnt--;
1696 } while (boguscnt > 0);
1698 if (boguscnt <= 0) {
1699 printk (KERN_WARNING
1700 "%s: Too much work at interrupt, "
1701 "IntrStatus=0x%4.4x.\n", dev->name,
1702 status);
1704 /* Clear all interrupt sources. */
1705 NETDRV_W16 (IntrStatus, 0xffff);
1708 spin_unlock (&tp->lock);
1710 DPRINTK ("%s: exiting interrupt, intr_status=%#4.4x.\n",
1711 dev->name, NETDRV_R16 (IntrStatus));
1712 return IRQ_RETVAL(handled);
1716 static int netdrv_close (struct net_device *dev)
1718 struct netdrv_private *tp = netdev_priv(dev);
1719 void *ioaddr = tp->mmio_addr;
1720 unsigned long flags;
1722 DPRINTK ("ENTER\n");
1724 netif_stop_queue (dev);
1726 DPRINTK ("%s: Shutting down ethercard, status was 0x%4.4x.\n",
1727 dev->name, NETDRV_R16 (IntrStatus));
1729 del_timer_sync (&tp->timer);
1731 spin_lock_irqsave (&tp->lock, flags);
1733 /* Stop the chip's Tx and Rx DMA processes. */
1734 NETDRV_W8 (ChipCmd, (NETDRV_R8 (ChipCmd) & ChipCmdClear));
1736 /* Disable interrupts by clearing the interrupt mask. */
1737 NETDRV_W16 (IntrMask, 0x0000);
1739 /* Update the error counts. */
1740 dev->stats.rx_missed_errors += NETDRV_R32 (RxMissed);
1741 NETDRV_W32 (RxMissed, 0);
1743 spin_unlock_irqrestore (&tp->lock, flags);
1745 free_irq (dev->irq, dev);
1747 netdrv_tx_clear (dev);
1749 pci_free_consistent(tp->pci_dev, RX_BUF_TOT_LEN,
1750 tp->rx_ring, tp->rx_ring_dma);
1751 pci_free_consistent(tp->pci_dev, TX_BUF_TOT_LEN,
1752 tp->tx_bufs, tp->tx_bufs_dma);
1753 tp->rx_ring = NULL;
1754 tp->tx_bufs = NULL;
1756 /* Green! Put the chip in low-power mode. */
1757 NETDRV_W8 (Cfg9346, Cfg9346_Unlock);
1758 NETDRV_W8 (Config1, 0x03);
1759 NETDRV_W8 (Cfg9346, Cfg9346_Lock);
1761 DPRINTK ("EXIT\n");
1762 return 0;
1766 static int netdrv_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
1768 struct netdrv_private *tp = netdev_priv(dev);
1769 struct mii_ioctl_data *data = if_mii(rq);
1770 unsigned long flags;
1771 int rc = 0;
1773 DPRINTK ("ENTER\n");
1775 switch (cmd) {
1776 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
1777 data->phy_id = tp->phys[0] & 0x3f;
1778 /* Fall Through */
1780 case SIOCGMIIREG: /* Read MII PHY register. */
1781 spin_lock_irqsave (&tp->lock, flags);
1782 data->val_out = mdio_read (dev, data->phy_id & 0x1f, data->reg_num & 0x1f);
1783 spin_unlock_irqrestore (&tp->lock, flags);
1784 break;
1786 case SIOCSMIIREG: /* Write MII PHY register. */
1787 if (!capable (CAP_NET_ADMIN)) {
1788 rc = -EPERM;
1789 break;
1792 spin_lock_irqsave (&tp->lock, flags);
1793 mdio_write (dev, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in);
1794 spin_unlock_irqrestore (&tp->lock, flags);
1795 break;
1797 default:
1798 rc = -EOPNOTSUPP;
1799 break;
1802 DPRINTK ("EXIT, returning %d\n", rc);
1803 return rc;
1806 /* Set or clear the multicast filter for this adaptor.
1807 This routine is not state sensitive and need not be SMP locked. */
1809 static void netdrv_set_rx_mode (struct net_device *dev)
1811 struct netdrv_private *tp = netdev_priv(dev);
1812 void *ioaddr = tp->mmio_addr;
1813 u32 mc_filter[2]; /* Multicast hash filter */
1814 int i, rx_mode;
1815 u32 tmp;
1817 DPRINTK ("ENTER\n");
1819 DPRINTK ("%s: netdrv_set_rx_mode(%4.4x) done -- Rx config %8.8x.\n",
1820 dev->name, dev->flags, NETDRV_R32 (RxConfig));
1822 /* Note: do not reorder, GCC is clever about common statements. */
1823 if (dev->flags & IFF_PROMISC) {
1824 rx_mode =
1825 AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
1826 AcceptAllPhys;
1827 mc_filter[1] = mc_filter[0] = 0xffffffff;
1828 } else if ((dev->mc_count > multicast_filter_limit)
1829 || (dev->flags & IFF_ALLMULTI)) {
1830 /* Too many to filter perfectly -- accept all multicasts. */
1831 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
1832 mc_filter[1] = mc_filter[0] = 0xffffffff;
1833 } else {
1834 struct dev_mc_list *mclist;
1835 rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
1836 mc_filter[1] = mc_filter[0] = 0;
1837 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
1838 i++, mclist = mclist->next) {
1839 int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
1841 mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
1845 /* if called from irq handler, lock already acquired */
1846 if (!in_irq ())
1847 spin_lock_irq (&tp->lock);
1849 /* We can safely update without stopping the chip. */
1850 tmp = netdrv_rx_config | rx_mode |
1851 (NETDRV_R32 (RxConfig) & rtl_chip_info[tp->chipset].RxConfigMask);
1852 NETDRV_W32_F (RxConfig, tmp);
1853 NETDRV_W32_F (MAR0 + 0, mc_filter[0]);
1854 NETDRV_W32_F (MAR0 + 4, mc_filter[1]);
1856 if (!in_irq ())
1857 spin_unlock_irq (&tp->lock);
1859 DPRINTK ("EXIT\n");
1863 #ifdef CONFIG_PM
1865 static int netdrv_suspend (struct pci_dev *pdev, pm_message_t state)
1867 struct net_device *dev = pci_get_drvdata (pdev);
1868 struct netdrv_private *tp = netdev_priv(dev);
1869 void *ioaddr = tp->mmio_addr;
1870 unsigned long flags;
1872 if (!netif_running(dev))
1873 return 0;
1874 netif_device_detach (dev);
1876 spin_lock_irqsave (&tp->lock, flags);
1878 /* Disable interrupts, stop Tx and Rx. */
1879 NETDRV_W16 (IntrMask, 0x0000);
1880 NETDRV_W8 (ChipCmd, (NETDRV_R8 (ChipCmd) & ChipCmdClear));
1882 /* Update the error counts. */
1883 dev->stats.rx_missed_errors += NETDRV_R32 (RxMissed);
1884 NETDRV_W32 (RxMissed, 0);
1886 spin_unlock_irqrestore (&tp->lock, flags);
1888 pci_save_state (pdev);
1889 pci_set_power_state (pdev, PCI_D3hot);
1891 return 0;
1895 static int netdrv_resume (struct pci_dev *pdev)
1897 struct net_device *dev = pci_get_drvdata (pdev);
1898 /*struct netdrv_private *tp = netdev_priv(dev);*/
1900 if (!netif_running(dev))
1901 return 0;
1902 pci_set_power_state (pdev, PCI_D0);
1903 pci_restore_state (pdev);
1904 netif_device_attach (dev);
1905 netdrv_hw_start (dev);
1907 return 0;
1910 #endif /* CONFIG_PM */
1913 static struct pci_driver netdrv_pci_driver = {
1914 .name = MODNAME,
1915 .id_table = netdrv_pci_tbl,
1916 .probe = netdrv_init_one,
1917 .remove = __devexit_p(netdrv_remove_one),
1918 #ifdef CONFIG_PM
1919 .suspend = netdrv_suspend,
1920 .resume = netdrv_resume,
1921 #endif /* CONFIG_PM */
1925 static int __init netdrv_init_module (void)
1927 /* when a module, this is printed whether or not devices are found in probe */
1928 #ifdef MODULE
1929 printk(version);
1930 #endif
1931 return pci_register_driver(&netdrv_pci_driver);
1935 static void __exit netdrv_cleanup_module (void)
1937 pci_unregister_driver (&netdrv_pci_driver);
1941 module_init(netdrv_init_module);
1942 module_exit(netdrv_cleanup_module);