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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
[deliverable/linux.git] / drivers / net / fealnx.c
1 /*
2 Written 1998-2000 by Donald Becker.
3
4 This software may be used and distributed according to the terms of
5 the GNU General Public License (GPL), incorporated herein by reference.
6 Drivers based on or derived from this code fall under the GPL and must
7 retain the authorship, copyright and license notice. This file is not
8 a complete program and may only be used when the entire operating
9 system is licensed under the GPL.
10
11 The author may be reached as becker@scyld.com, or C/O
12 Scyld Computing Corporation
13 410 Severn Ave., Suite 210
14 Annapolis MD 21403
15
16 Support information and updates available at
17 http://www.scyld.com/network/pci-skeleton.html
18
19 Linux kernel updates:
20
21 Version 2.51, Nov 17, 2001 (jgarzik):
22 - Add ethtool support
23 - Replace some MII-related magic numbers with constants
24
25 */
26
27 #define DRV_NAME "fealnx"
28 #define DRV_VERSION "2.52"
29 #define DRV_RELDATE "Sep-11-2006"
30
31 static int debug; /* 1-> print debug message */
32 static int max_interrupt_work = 20;
33
34 /* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). */
35 static int multicast_filter_limit = 32;
36
37 /* Set the copy breakpoint for the copy-only-tiny-frames scheme. */
38 /* Setting to > 1518 effectively disables this feature. */
39 static int rx_copybreak;
40
41 /* Used to pass the media type, etc. */
42 /* Both 'options[]' and 'full_duplex[]' should exist for driver */
43 /* interoperability. */
44 /* The media type is usually passed in 'options[]'. */
45 #define MAX_UNITS 8 /* More are supported, limit only on options */
46 static int options[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 };
47 static int full_duplex[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 };
48
49 /* Operational parameters that are set at compile time. */
50 /* Keep the ring sizes a power of two for compile efficiency. */
51 /* The compiler will convert <unsigned>'%'<2^N> into a bit mask. */
52 /* Making the Tx ring too large decreases the effectiveness of channel */
53 /* bonding and packet priority. */
54 /* There are no ill effects from too-large receive rings. */
55 // 88-12-9 modify,
56 // #define TX_RING_SIZE 16
57 // #define RX_RING_SIZE 32
58 #define TX_RING_SIZE 6
59 #define RX_RING_SIZE 12
60 #define TX_TOTAL_SIZE TX_RING_SIZE*sizeof(struct fealnx_desc)
61 #define RX_TOTAL_SIZE RX_RING_SIZE*sizeof(struct fealnx_desc)
62
63 /* Operational parameters that usually are not changed. */
64 /* Time in jiffies before concluding the transmitter is hung. */
65 #define TX_TIMEOUT (2*HZ)
66
67 #define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer. */
68
69
70 /* Include files, designed to support most kernel versions 2.0.0 and later. */
71 #include <linux/module.h>
72 #include <linux/kernel.h>
73 #include <linux/string.h>
74 #include <linux/timer.h>
75 #include <linux/errno.h>
76 #include <linux/ioport.h>
77 #include <linux/slab.h>
78 #include <linux/interrupt.h>
79 #include <linux/pci.h>
80 #include <linux/netdevice.h>
81 #include <linux/etherdevice.h>
82 #include <linux/skbuff.h>
83 #include <linux/init.h>
84 #include <linux/mii.h>
85 #include <linux/ethtool.h>
86 #include <linux/crc32.h>
87 #include <linux/delay.h>
88 #include <linux/bitops.h>
89
90 #include <asm/processor.h> /* Processor type for cache alignment. */
91 #include <asm/io.h>
92 #include <asm/uaccess.h>
93 #include <asm/byteorder.h>
94
95 /* These identify the driver base version and may not be removed. */
96 static char version[] =
97 KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE "\n";
98
99
100 /* This driver was written to use PCI memory space, however some x86 systems
101 work only with I/O space accesses. */
102 #ifndef __alpha__
103 #define USE_IO_OPS
104 #endif
105
106 /* Kernel compatibility defines, some common to David Hinds' PCMCIA package. */
107 /* This is only in the support-all-kernels source code. */
108
109 #define RUN_AT(x) (jiffies + (x))
110
111 MODULE_AUTHOR("Myson or whoever");
112 MODULE_DESCRIPTION("Myson MTD-8xx 100/10M Ethernet PCI Adapter Driver");
113 MODULE_LICENSE("GPL");
114 module_param(max_interrupt_work, int, 0);
115 module_param(debug, int, 0);
116 module_param(rx_copybreak, int, 0);
117 module_param(multicast_filter_limit, int, 0);
118 module_param_array(options, int, NULL, 0);
119 module_param_array(full_duplex, int, NULL, 0);
120 MODULE_PARM_DESC(max_interrupt_work, "fealnx maximum events handled per interrupt");
121 MODULE_PARM_DESC(debug, "fealnx enable debugging (0-1)");
122 MODULE_PARM_DESC(rx_copybreak, "fealnx copy breakpoint for copy-only-tiny-frames");
123 MODULE_PARM_DESC(multicast_filter_limit, "fealnx maximum number of filtered multicast addresses");
124 MODULE_PARM_DESC(options, "fealnx: Bits 0-3: media type, bit 17: full duplex");
125 MODULE_PARM_DESC(full_duplex, "fealnx full duplex setting(s) (1)");
126
127 enum {
128 MIN_REGION_SIZE = 136,
129 };
130
131 /* A chip capabilities table, matching the entries in pci_tbl[] above. */
132 enum chip_capability_flags {
133 HAS_MII_XCVR,
134 HAS_CHIP_XCVR,
135 };
136
137 /* 89/6/13 add, */
138 /* for different PHY */
139 enum phy_type_flags {
140 MysonPHY = 1,
141 AhdocPHY = 2,
142 SeeqPHY = 3,
143 MarvellPHY = 4,
144 Myson981 = 5,
145 LevelOnePHY = 6,
146 OtherPHY = 10,
147 };
148
149 struct chip_info {
150 char *chip_name;
151 int flags;
152 };
153
154 static const struct chip_info skel_netdrv_tbl[] __devinitdata = {
155 { "100/10M Ethernet PCI Adapter", HAS_MII_XCVR },
156 { "100/10M Ethernet PCI Adapter", HAS_CHIP_XCVR },
157 { "1000/100/10M Ethernet PCI Adapter", HAS_MII_XCVR },
158 };
159
160 /* Offsets to the Command and Status Registers. */
161 enum fealnx_offsets {
162 PAR0 = 0x0, /* physical address 0-3 */
163 PAR1 = 0x04, /* physical address 4-5 */
164 MAR0 = 0x08, /* multicast address 0-3 */
165 MAR1 = 0x0C, /* multicast address 4-7 */
166 FAR0 = 0x10, /* flow-control address 0-3 */
167 FAR1 = 0x14, /* flow-control address 4-5 */
168 TCRRCR = 0x18, /* receive & transmit configuration */
169 BCR = 0x1C, /* bus command */
170 TXPDR = 0x20, /* transmit polling demand */
171 RXPDR = 0x24, /* receive polling demand */
172 RXCWP = 0x28, /* receive current word pointer */
173 TXLBA = 0x2C, /* transmit list base address */
174 RXLBA = 0x30, /* receive list base address */
175 ISR = 0x34, /* interrupt status */
176 IMR = 0x38, /* interrupt mask */
177 FTH = 0x3C, /* flow control high/low threshold */
178 MANAGEMENT = 0x40, /* bootrom/eeprom and mii management */
179 TALLY = 0x44, /* tally counters for crc and mpa */
180 TSR = 0x48, /* tally counter for transmit status */
181 BMCRSR = 0x4c, /* basic mode control and status */
182 PHYIDENTIFIER = 0x50, /* phy identifier */
183 ANARANLPAR = 0x54, /* auto-negotiation advertisement and link
184 partner ability */
185 ANEROCR = 0x58, /* auto-negotiation expansion and pci conf. */
186 BPREMRPSR = 0x5c, /* bypass & receive error mask and phy status */
187 };
188
189 /* Bits in the interrupt status/enable registers. */
190 /* The bits in the Intr Status/Enable registers, mostly interrupt sources. */
191 enum intr_status_bits {
192 RFCON = 0x00020000, /* receive flow control xon packet */
193 RFCOFF = 0x00010000, /* receive flow control xoff packet */
194 LSCStatus = 0x00008000, /* link status change */
195 ANCStatus = 0x00004000, /* autonegotiation completed */
196 FBE = 0x00002000, /* fatal bus error */
197 FBEMask = 0x00001800, /* mask bit12-11 */
198 ParityErr = 0x00000000, /* parity error */
199 TargetErr = 0x00001000, /* target abort */
200 MasterErr = 0x00000800, /* master error */
201 TUNF = 0x00000400, /* transmit underflow */
202 ROVF = 0x00000200, /* receive overflow */
203 ETI = 0x00000100, /* transmit early int */
204 ERI = 0x00000080, /* receive early int */
205 CNTOVF = 0x00000040, /* counter overflow */
206 RBU = 0x00000020, /* receive buffer unavailable */
207 TBU = 0x00000010, /* transmit buffer unavilable */
208 TI = 0x00000008, /* transmit interrupt */
209 RI = 0x00000004, /* receive interrupt */
210 RxErr = 0x00000002, /* receive error */
211 };
212
213 /* Bits in the NetworkConfig register, W for writing, R for reading */
214 /* FIXME: some names are invented by me. Marked with (name?) */
215 /* If you have docs and know bit names, please fix 'em */
216 enum rx_mode_bits {
217 CR_W_ENH = 0x02000000, /* enhanced mode (name?) */
218 CR_W_FD = 0x00100000, /* full duplex */
219 CR_W_PS10 = 0x00080000, /* 10 mbit */
220 CR_W_TXEN = 0x00040000, /* tx enable (name?) */
221 CR_W_PS1000 = 0x00010000, /* 1000 mbit */
222 /* CR_W_RXBURSTMASK= 0x00000e00, Im unsure about this */
223 CR_W_RXMODEMASK = 0x000000e0,
224 CR_W_PROM = 0x00000080, /* promiscuous mode */
225 CR_W_AB = 0x00000040, /* accept broadcast */
226 CR_W_AM = 0x00000020, /* accept mutlicast */
227 CR_W_ARP = 0x00000008, /* receive runt pkt */
228 CR_W_ALP = 0x00000004, /* receive long pkt */
229 CR_W_SEP = 0x00000002, /* receive error pkt */
230 CR_W_RXEN = 0x00000001, /* rx enable (unicast?) (name?) */
231
232 CR_R_TXSTOP = 0x04000000, /* tx stopped (name?) */
233 CR_R_FD = 0x00100000, /* full duplex detected */
234 CR_R_PS10 = 0x00080000, /* 10 mbit detected */
235 CR_R_RXSTOP = 0x00008000, /* rx stopped (name?) */
236 };
237
238 /* The Tulip Rx and Tx buffer descriptors. */
239 struct fealnx_desc {
240 s32 status;
241 s32 control;
242 u32 buffer;
243 u32 next_desc;
244 struct fealnx_desc *next_desc_logical;
245 struct sk_buff *skbuff;
246 u32 reserved1;
247 u32 reserved2;
248 };
249
250 /* Bits in network_desc.status */
251 enum rx_desc_status_bits {
252 RXOWN = 0x80000000, /* own bit */
253 FLNGMASK = 0x0fff0000, /* frame length */
254 FLNGShift = 16,
255 MARSTATUS = 0x00004000, /* multicast address received */
256 BARSTATUS = 0x00002000, /* broadcast address received */
257 PHYSTATUS = 0x00001000, /* physical address received */
258 RXFSD = 0x00000800, /* first descriptor */
259 RXLSD = 0x00000400, /* last descriptor */
260 ErrorSummary = 0x80, /* error summary */
261 RUNT = 0x40, /* runt packet received */
262 LONG = 0x20, /* long packet received */
263 FAE = 0x10, /* frame align error */
264 CRC = 0x08, /* crc error */
265 RXER = 0x04, /* receive error */
266 };
267
268 enum rx_desc_control_bits {
269 RXIC = 0x00800000, /* interrupt control */
270 RBSShift = 0,
271 };
272
273 enum tx_desc_status_bits {
274 TXOWN = 0x80000000, /* own bit */
275 JABTO = 0x00004000, /* jabber timeout */
276 CSL = 0x00002000, /* carrier sense lost */
277 LC = 0x00001000, /* late collision */
278 EC = 0x00000800, /* excessive collision */
279 UDF = 0x00000400, /* fifo underflow */
280 DFR = 0x00000200, /* deferred */
281 HF = 0x00000100, /* heartbeat fail */
282 NCRMask = 0x000000ff, /* collision retry count */
283 NCRShift = 0,
284 };
285
286 enum tx_desc_control_bits {
287 TXIC = 0x80000000, /* interrupt control */
288 ETIControl = 0x40000000, /* early transmit interrupt */
289 TXLD = 0x20000000, /* last descriptor */
290 TXFD = 0x10000000, /* first descriptor */
291 CRCEnable = 0x08000000, /* crc control */
292 PADEnable = 0x04000000, /* padding control */
293 RetryTxLC = 0x02000000, /* retry late collision */
294 PKTSMask = 0x3ff800, /* packet size bit21-11 */
295 PKTSShift = 11,
296 TBSMask = 0x000007ff, /* transmit buffer bit 10-0 */
297 TBSShift = 0,
298 };
299
300 /* BootROM/EEPROM/MII Management Register */
301 #define MASK_MIIR_MII_READ 0x00000000
302 #define MASK_MIIR_MII_WRITE 0x00000008
303 #define MASK_MIIR_MII_MDO 0x00000004
304 #define MASK_MIIR_MII_MDI 0x00000002
305 #define MASK_MIIR_MII_MDC 0x00000001
306
307 /* ST+OP+PHYAD+REGAD+TA */
308 #define OP_READ 0x6000 /* ST:01+OP:10+PHYAD+REGAD+TA:Z0 */
309 #define OP_WRITE 0x5002 /* ST:01+OP:01+PHYAD+REGAD+TA:10 */
310
311 /* ------------------------------------------------------------------------- */
312 /* Constants for Myson PHY */
313 /* ------------------------------------------------------------------------- */
314 #define MysonPHYID 0xd0000302
315 /* 89-7-27 add, (begin) */
316 #define MysonPHYID0 0x0302
317 #define StatusRegister 18
318 #define SPEED100 0x0400 // bit10
319 #define FULLMODE 0x0800 // bit11
320 /* 89-7-27 add, (end) */
321
322 /* ------------------------------------------------------------------------- */
323 /* Constants for Seeq 80225 PHY */
324 /* ------------------------------------------------------------------------- */
325 #define SeeqPHYID0 0x0016
326
327 #define MIIRegister18 18
328 #define SPD_DET_100 0x80
329 #define DPLX_DET_FULL 0x40
330
331 /* ------------------------------------------------------------------------- */
332 /* Constants for Ahdoc 101 PHY */
333 /* ------------------------------------------------------------------------- */
334 #define AhdocPHYID0 0x0022
335
336 #define DiagnosticReg 18
337 #define DPLX_FULL 0x0800
338 #define Speed_100 0x0400
339
340 /* 89/6/13 add, */
341 /* -------------------------------------------------------------------------- */
342 /* Constants */
343 /* -------------------------------------------------------------------------- */
344 #define MarvellPHYID0 0x0141
345 #define LevelOnePHYID0 0x0013
346
347 #define MII1000BaseTControlReg 9
348 #define MII1000BaseTStatusReg 10
349 #define SpecificReg 17
350
351 /* for 1000BaseT Control Register */
352 #define PHYAbletoPerform1000FullDuplex 0x0200
353 #define PHYAbletoPerform1000HalfDuplex 0x0100
354 #define PHY1000AbilityMask 0x300
355
356 // for phy specific status register, marvell phy.
357 #define SpeedMask 0x0c000
358 #define Speed_1000M 0x08000
359 #define Speed_100M 0x4000
360 #define Speed_10M 0
361 #define Full_Duplex 0x2000
362
363 // 89/12/29 add, for phy specific status register, levelone phy, (begin)
364 #define LXT1000_100M 0x08000
365 #define LXT1000_1000M 0x0c000
366 #define LXT1000_Full 0x200
367 // 89/12/29 add, for phy specific status register, levelone phy, (end)
368
369 /* for 3-in-1 case, BMCRSR register */
370 #define LinkIsUp2 0x00040000
371
372 /* for PHY */
373 #define LinkIsUp 0x0004
374
375
376 struct netdev_private {
377 /* Descriptor rings first for alignment. */
378 struct fealnx_desc *rx_ring;
379 struct fealnx_desc *tx_ring;
380
381 dma_addr_t rx_ring_dma;
382 dma_addr_t tx_ring_dma;
383
384 spinlock_t lock;
385
386 struct net_device_stats stats;
387
388 /* Media monitoring timer. */
389 struct timer_list timer;
390
391 /* Reset timer */
392 struct timer_list reset_timer;
393 int reset_timer_armed;
394 unsigned long crvalue_sv;
395 unsigned long imrvalue_sv;
396
397 /* Frequently used values: keep some adjacent for cache effect. */
398 int flags;
399 struct pci_dev *pci_dev;
400 unsigned long crvalue;
401 unsigned long bcrvalue;
402 unsigned long imrvalue;
403 struct fealnx_desc *cur_rx;
404 struct fealnx_desc *lack_rxbuf;
405 int really_rx_count;
406 struct fealnx_desc *cur_tx;
407 struct fealnx_desc *cur_tx_copy;
408 int really_tx_count;
409 int free_tx_count;
410 unsigned int rx_buf_sz; /* Based on MTU+slack. */
411
412 /* These values are keep track of the transceiver/media in use. */
413 unsigned int linkok;
414 unsigned int line_speed;
415 unsigned int duplexmode;
416 unsigned int default_port:4; /* Last dev->if_port value. */
417 unsigned int PHYType;
418
419 /* MII transceiver section. */
420 int mii_cnt; /* MII device addresses. */
421 unsigned char phys[2]; /* MII device addresses. */
422 struct mii_if_info mii;
423 void __iomem *mem;
424 };
425
426
427 static int mdio_read(struct net_device *dev, int phy_id, int location);
428 static void mdio_write(struct net_device *dev, int phy_id, int location, int value);
429 static int netdev_open(struct net_device *dev);
430 static void getlinktype(struct net_device *dev);
431 static void getlinkstatus(struct net_device *dev);
432 static void netdev_timer(unsigned long data);
433 static void reset_timer(unsigned long data);
434 static void tx_timeout(struct net_device *dev);
435 static void init_ring(struct net_device *dev);
436 static int start_tx(struct sk_buff *skb, struct net_device *dev);
437 static irqreturn_t intr_handler(int irq, void *dev_instance);
438 static int netdev_rx(struct net_device *dev);
439 static void set_rx_mode(struct net_device *dev);
440 static void __set_rx_mode(struct net_device *dev);
441 static struct net_device_stats *get_stats(struct net_device *dev);
442 static int mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
443 static const struct ethtool_ops netdev_ethtool_ops;
444 static int netdev_close(struct net_device *dev);
445 static void reset_rx_descriptors(struct net_device *dev);
446 static void reset_tx_descriptors(struct net_device *dev);
447
448 static void stop_nic_rx(void __iomem *ioaddr, long crvalue)
449 {
450 int delay = 0x1000;
451 iowrite32(crvalue & ~(CR_W_RXEN), ioaddr + TCRRCR);
452 while (--delay) {
453 if ( (ioread32(ioaddr + TCRRCR) & CR_R_RXSTOP) == CR_R_RXSTOP)
454 break;
455 }
456 }
457
458
459 static void stop_nic_rxtx(void __iomem *ioaddr, long crvalue)
460 {
461 int delay = 0x1000;
462 iowrite32(crvalue & ~(CR_W_RXEN+CR_W_TXEN), ioaddr + TCRRCR);
463 while (--delay) {
464 if ( (ioread32(ioaddr + TCRRCR) & (CR_R_RXSTOP+CR_R_TXSTOP))
465 == (CR_R_RXSTOP+CR_R_TXSTOP) )
466 break;
467 }
468 }
469
470
471 static int __devinit fealnx_init_one(struct pci_dev *pdev,
472 const struct pci_device_id *ent)
473 {
474 struct netdev_private *np;
475 int i, option, err, irq;
476 static int card_idx = -1;
477 char boardname[12];
478 void __iomem *ioaddr;
479 unsigned long len;
480 unsigned int chip_id = ent->driver_data;
481 struct net_device *dev;
482 void *ring_space;
483 dma_addr_t ring_dma;
484 #ifdef USE_IO_OPS
485 int bar = 0;
486 #else
487 int bar = 1;
488 #endif
489 DECLARE_MAC_BUF(mac);
490
491 /* when built into the kernel, we only print version if device is found */
492 #ifndef MODULE
493 static int printed_version;
494 if (!printed_version++)
495 printk(version);
496 #endif
497
498 card_idx++;
499 sprintf(boardname, "fealnx%d", card_idx);
500
501 option = card_idx < MAX_UNITS ? options[card_idx] : 0;
502
503 i = pci_enable_device(pdev);
504 if (i) return i;
505 pci_set_master(pdev);
506
507 len = pci_resource_len(pdev, bar);
508 if (len < MIN_REGION_SIZE) {
509 dev_err(&pdev->dev,
510 "region size %ld too small, aborting\n", len);
511 return -ENODEV;
512 }
513
514 i = pci_request_regions(pdev, boardname);
515 if (i)
516 return i;
517
518 irq = pdev->irq;
519
520 ioaddr = pci_iomap(pdev, bar, len);
521 if (!ioaddr) {
522 err = -ENOMEM;
523 goto err_out_res;
524 }
525
526 dev = alloc_etherdev(sizeof(struct netdev_private));
527 if (!dev) {
528 err = -ENOMEM;
529 goto err_out_unmap;
530 }
531 SET_NETDEV_DEV(dev, &pdev->dev);
532
533 /* read ethernet id */
534 for (i = 0; i < 6; ++i)
535 dev->dev_addr[i] = ioread8(ioaddr + PAR0 + i);
536
537 /* Reset the chip to erase previous misconfiguration. */
538 iowrite32(0x00000001, ioaddr + BCR);
539
540 dev->base_addr = (unsigned long)ioaddr;
541 dev->irq = irq;
542
543 /* Make certain the descriptor lists are aligned. */
544 np = netdev_priv(dev);
545 np->mem = ioaddr;
546 spin_lock_init(&np->lock);
547 np->pci_dev = pdev;
548 np->flags = skel_netdrv_tbl[chip_id].flags;
549 pci_set_drvdata(pdev, dev);
550 np->mii.dev = dev;
551 np->mii.mdio_read = mdio_read;
552 np->mii.mdio_write = mdio_write;
553 np->mii.phy_id_mask = 0x1f;
554 np->mii.reg_num_mask = 0x1f;
555
556 ring_space = pci_alloc_consistent(pdev, RX_TOTAL_SIZE, &ring_dma);
557 if (!ring_space) {
558 err = -ENOMEM;
559 goto err_out_free_dev;
560 }
561 np->rx_ring = (struct fealnx_desc *)ring_space;
562 np->rx_ring_dma = ring_dma;
563
564 ring_space = pci_alloc_consistent(pdev, TX_TOTAL_SIZE, &ring_dma);
565 if (!ring_space) {
566 err = -ENOMEM;
567 goto err_out_free_rx;
568 }
569 np->tx_ring = (struct fealnx_desc *)ring_space;
570 np->tx_ring_dma = ring_dma;
571
572 /* find the connected MII xcvrs */
573 if (np->flags == HAS_MII_XCVR) {
574 int phy, phy_idx = 0;
575
576 for (phy = 1; phy < 32 && phy_idx < 4; phy++) {
577 int mii_status = mdio_read(dev, phy, 1);
578
579 if (mii_status != 0xffff && mii_status != 0x0000) {
580 np->phys[phy_idx++] = phy;
581 dev_info(&pdev->dev,
582 "MII PHY found at address %d, status "
583 "0x%4.4x.\n", phy, mii_status);
584 /* get phy type */
585 {
586 unsigned int data;
587
588 data = mdio_read(dev, np->phys[0], 2);
589 if (data == SeeqPHYID0)
590 np->PHYType = SeeqPHY;
591 else if (data == AhdocPHYID0)
592 np->PHYType = AhdocPHY;
593 else if (data == MarvellPHYID0)
594 np->PHYType = MarvellPHY;
595 else if (data == MysonPHYID0)
596 np->PHYType = Myson981;
597 else if (data == LevelOnePHYID0)
598 np->PHYType = LevelOnePHY;
599 else
600 np->PHYType = OtherPHY;
601 }
602 }
603 }
604
605 np->mii_cnt = phy_idx;
606 if (phy_idx == 0)
607 dev_warn(&pdev->dev,
608 "MII PHY not found -- this device may "
609 "not operate correctly.\n");
610 } else {
611 np->phys[0] = 32;
612 /* 89/6/23 add, (begin) */
613 /* get phy type */
614 if (ioread32(ioaddr + PHYIDENTIFIER) == MysonPHYID)
615 np->PHYType = MysonPHY;
616 else
617 np->PHYType = OtherPHY;
618 }
619 np->mii.phy_id = np->phys[0];
620
621 if (dev->mem_start)
622 option = dev->mem_start;
623
624 /* The lower four bits are the media type. */
625 if (option > 0) {
626 if (option & 0x200)
627 np->mii.full_duplex = 1;
628 np->default_port = option & 15;
629 }
630
631 if (card_idx < MAX_UNITS && full_duplex[card_idx] > 0)
632 np->mii.full_duplex = full_duplex[card_idx];
633
634 if (np->mii.full_duplex) {
635 dev_info(&pdev->dev, "Media type forced to Full Duplex.\n");
636 /* 89/6/13 add, (begin) */
637 // if (np->PHYType==MarvellPHY)
638 if ((np->PHYType == MarvellPHY) || (np->PHYType == LevelOnePHY)) {
639 unsigned int data;
640
641 data = mdio_read(dev, np->phys[0], 9);
642 data = (data & 0xfcff) | 0x0200;
643 mdio_write(dev, np->phys[0], 9, data);
644 }
645 /* 89/6/13 add, (end) */
646 if (np->flags == HAS_MII_XCVR)
647 mdio_write(dev, np->phys[0], MII_ADVERTISE, ADVERTISE_FULL);
648 else
649 iowrite32(ADVERTISE_FULL, ioaddr + ANARANLPAR);
650 np->mii.force_media = 1;
651 }
652
653 /* The chip-specific entries in the device structure. */
654 dev->open = &netdev_open;
655 dev->hard_start_xmit = &start_tx;
656 dev->stop = &netdev_close;
657 dev->get_stats = &get_stats;
658 dev->set_multicast_list = &set_rx_mode;
659 dev->do_ioctl = &mii_ioctl;
660 dev->ethtool_ops = &netdev_ethtool_ops;
661 dev->tx_timeout = &tx_timeout;
662 dev->watchdog_timeo = TX_TIMEOUT;
663
664 err = register_netdev(dev);
665 if (err)
666 goto err_out_free_tx;
667
668 printk(KERN_INFO "%s: %s at %p, %s, IRQ %d.\n",
669 dev->name, skel_netdrv_tbl[chip_id].chip_name, ioaddr,
670 print_mac(mac, dev->dev_addr), irq);
671
672 return 0;
673
674 err_out_free_tx:
675 pci_free_consistent(pdev, TX_TOTAL_SIZE, np->tx_ring, np->tx_ring_dma);
676 err_out_free_rx:
677 pci_free_consistent(pdev, RX_TOTAL_SIZE, np->rx_ring, np->rx_ring_dma);
678 err_out_free_dev:
679 free_netdev(dev);
680 err_out_unmap:
681 pci_iounmap(pdev, ioaddr);
682 err_out_res:
683 pci_release_regions(pdev);
684 return err;
685 }
686
687
688 static void __devexit fealnx_remove_one(struct pci_dev *pdev)
689 {
690 struct net_device *dev = pci_get_drvdata(pdev);
691
692 if (dev) {
693 struct netdev_private *np = netdev_priv(dev);
694
695 pci_free_consistent(pdev, TX_TOTAL_SIZE, np->tx_ring,
696 np->tx_ring_dma);
697 pci_free_consistent(pdev, RX_TOTAL_SIZE, np->rx_ring,
698 np->rx_ring_dma);
699 unregister_netdev(dev);
700 pci_iounmap(pdev, np->mem);
701 free_netdev(dev);
702 pci_release_regions(pdev);
703 pci_set_drvdata(pdev, NULL);
704 } else
705 printk(KERN_ERR "fealnx: remove for unknown device\n");
706 }
707
708
709 static ulong m80x_send_cmd_to_phy(void __iomem *miiport, int opcode, int phyad, int regad)
710 {
711 ulong miir;
712 int i;
713 unsigned int mask, data;
714
715 /* enable MII output */
716 miir = (ulong) ioread32(miiport);
717 miir &= 0xfffffff0;
718
719 miir |= MASK_MIIR_MII_WRITE + MASK_MIIR_MII_MDO;
720
721 /* send 32 1's preamble */
722 for (i = 0; i < 32; i++) {
723 /* low MDC; MDO is already high (miir) */
724 miir &= ~MASK_MIIR_MII_MDC;
725 iowrite32(miir, miiport);
726
727 /* high MDC */
728 miir |= MASK_MIIR_MII_MDC;
729 iowrite32(miir, miiport);
730 }
731
732 /* calculate ST+OP+PHYAD+REGAD+TA */
733 data = opcode | (phyad << 7) | (regad << 2);
734
735 /* sent out */
736 mask = 0x8000;
737 while (mask) {
738 /* low MDC, prepare MDO */
739 miir &= ~(MASK_MIIR_MII_MDC + MASK_MIIR_MII_MDO);
740 if (mask & data)
741 miir |= MASK_MIIR_MII_MDO;
742
743 iowrite32(miir, miiport);
744 /* high MDC */
745 miir |= MASK_MIIR_MII_MDC;
746 iowrite32(miir, miiport);
747 udelay(30);
748
749 /* next */
750 mask >>= 1;
751 if (mask == 0x2 && opcode == OP_READ)
752 miir &= ~MASK_MIIR_MII_WRITE;
753 }
754 return miir;
755 }
756
757
758 static int mdio_read(struct net_device *dev, int phyad, int regad)
759 {
760 struct netdev_private *np = netdev_priv(dev);
761 void __iomem *miiport = np->mem + MANAGEMENT;
762 ulong miir;
763 unsigned int mask, data;
764
765 miir = m80x_send_cmd_to_phy(miiport, OP_READ, phyad, regad);
766
767 /* read data */
768 mask = 0x8000;
769 data = 0;
770 while (mask) {
771 /* low MDC */
772 miir &= ~MASK_MIIR_MII_MDC;
773 iowrite32(miir, miiport);
774
775 /* read MDI */
776 miir = ioread32(miiport);
777 if (miir & MASK_MIIR_MII_MDI)
778 data |= mask;
779
780 /* high MDC, and wait */
781 miir |= MASK_MIIR_MII_MDC;
782 iowrite32(miir, miiport);
783 udelay(30);
784
785 /* next */
786 mask >>= 1;
787 }
788
789 /* low MDC */
790 miir &= ~MASK_MIIR_MII_MDC;
791 iowrite32(miir, miiport);
792
793 return data & 0xffff;
794 }
795
796
797 static void mdio_write(struct net_device *dev, int phyad, int regad, int data)
798 {
799 struct netdev_private *np = netdev_priv(dev);
800 void __iomem *miiport = np->mem + MANAGEMENT;
801 ulong miir;
802 unsigned int mask;
803
804 miir = m80x_send_cmd_to_phy(miiport, OP_WRITE, phyad, regad);
805
806 /* write data */
807 mask = 0x8000;
808 while (mask) {
809 /* low MDC, prepare MDO */
810 miir &= ~(MASK_MIIR_MII_MDC + MASK_MIIR_MII_MDO);
811 if (mask & data)
812 miir |= MASK_MIIR_MII_MDO;
813 iowrite32(miir, miiport);
814
815 /* high MDC */
816 miir |= MASK_MIIR_MII_MDC;
817 iowrite32(miir, miiport);
818
819 /* next */
820 mask >>= 1;
821 }
822
823 /* low MDC */
824 miir &= ~MASK_MIIR_MII_MDC;
825 iowrite32(miir, miiport);
826 }
827
828
829 static int netdev_open(struct net_device *dev)
830 {
831 struct netdev_private *np = netdev_priv(dev);
832 void __iomem *ioaddr = np->mem;
833 int i;
834
835 iowrite32(0x00000001, ioaddr + BCR); /* Reset */
836
837 if (request_irq(dev->irq, &intr_handler, IRQF_SHARED, dev->name, dev))
838 return -EAGAIN;
839
840 for (i = 0; i < 3; i++)
841 iowrite16(((unsigned short*)dev->dev_addr)[i],
842 ioaddr + PAR0 + i*2);
843
844 init_ring(dev);
845
846 iowrite32(np->rx_ring_dma, ioaddr + RXLBA);
847 iowrite32(np->tx_ring_dma, ioaddr + TXLBA);
848
849 /* Initialize other registers. */
850 /* Configure the PCI bus bursts and FIFO thresholds.
851 486: Set 8 longword burst.
852 586: no burst limit.
853 Burst length 5:3
854 0 0 0 1
855 0 0 1 4
856 0 1 0 8
857 0 1 1 16
858 1 0 0 32
859 1 0 1 64
860 1 1 0 128
861 1 1 1 256
862 Wait the specified 50 PCI cycles after a reset by initializing
863 Tx and Rx queues and the address filter list.
864 FIXME (Ueimor): optimistic for alpha + posted writes ? */
865
866 np->bcrvalue = 0x10; /* little-endian, 8 burst length */
867 #ifdef __BIG_ENDIAN
868 np->bcrvalue |= 0x04; /* big-endian */
869 #endif
870
871 #if defined(__i386__) && !defined(MODULE)
872 if (boot_cpu_data.x86 <= 4)
873 np->crvalue = 0xa00;
874 else
875 #endif
876 np->crvalue = 0xe00; /* rx 128 burst length */
877
878
879 // 89/12/29 add,
880 // 90/1/16 modify,
881 // np->imrvalue=FBE|TUNF|CNTOVF|RBU|TI|RI;
882 np->imrvalue = TUNF | CNTOVF | RBU | TI | RI;
883 if (np->pci_dev->device == 0x891) {
884 np->bcrvalue |= 0x200; /* set PROG bit */
885 np->crvalue |= CR_W_ENH; /* set enhanced bit */
886 np->imrvalue |= ETI;
887 }
888 iowrite32(np->bcrvalue, ioaddr + BCR);
889
890 if (dev->if_port == 0)
891 dev->if_port = np->default_port;
892
893 iowrite32(0, ioaddr + RXPDR);
894 // 89/9/1 modify,
895 // np->crvalue = 0x00e40001; /* tx store and forward, tx/rx enable */
896 np->crvalue |= 0x00e40001; /* tx store and forward, tx/rx enable */
897 np->mii.full_duplex = np->mii.force_media;
898 getlinkstatus(dev);
899 if (np->linkok)
900 getlinktype(dev);
901 __set_rx_mode(dev);
902
903 netif_start_queue(dev);
904
905 /* Clear and Enable interrupts by setting the interrupt mask. */
906 iowrite32(FBE | TUNF | CNTOVF | RBU | TI | RI, ioaddr + ISR);
907 iowrite32(np->imrvalue, ioaddr + IMR);
908
909 if (debug)
910 printk(KERN_DEBUG "%s: Done netdev_open().\n", dev->name);
911
912 /* Set the timer to check for link beat. */
913 init_timer(&np->timer);
914 np->timer.expires = RUN_AT(3 * HZ);
915 np->timer.data = (unsigned long) dev;
916 np->timer.function = &netdev_timer;
917
918 /* timer handler */
919 add_timer(&np->timer);
920
921 init_timer(&np->reset_timer);
922 np->reset_timer.data = (unsigned long) dev;
923 np->reset_timer.function = &reset_timer;
924 np->reset_timer_armed = 0;
925
926 return 0;
927 }
928
929
930 static void getlinkstatus(struct net_device *dev)
931 /* function: Routine will read MII Status Register to get link status. */
932 /* input : dev... pointer to the adapter block. */
933 /* output : none. */
934 {
935 struct netdev_private *np = netdev_priv(dev);
936 unsigned int i, DelayTime = 0x1000;
937
938 np->linkok = 0;
939
940 if (np->PHYType == MysonPHY) {
941 for (i = 0; i < DelayTime; ++i) {
942 if (ioread32(np->mem + BMCRSR) & LinkIsUp2) {
943 np->linkok = 1;
944 return;
945 }
946 udelay(100);
947 }
948 } else {
949 for (i = 0; i < DelayTime; ++i) {
950 if (mdio_read(dev, np->phys[0], MII_BMSR) & BMSR_LSTATUS) {
951 np->linkok = 1;
952 return;
953 }
954 udelay(100);
955 }
956 }
957 }
958
959
960 static void getlinktype(struct net_device *dev)
961 {
962 struct netdev_private *np = netdev_priv(dev);
963
964 if (np->PHYType == MysonPHY) { /* 3-in-1 case */
965 if (ioread32(np->mem + TCRRCR) & CR_R_FD)
966 np->duplexmode = 2; /* full duplex */
967 else
968 np->duplexmode = 1; /* half duplex */
969 if (ioread32(np->mem + TCRRCR) & CR_R_PS10)
970 np->line_speed = 1; /* 10M */
971 else
972 np->line_speed = 2; /* 100M */
973 } else {
974 if (np->PHYType == SeeqPHY) { /* this PHY is SEEQ 80225 */
975 unsigned int data;
976
977 data = mdio_read(dev, np->phys[0], MIIRegister18);
978 if (data & SPD_DET_100)
979 np->line_speed = 2; /* 100M */
980 else
981 np->line_speed = 1; /* 10M */
982 if (data & DPLX_DET_FULL)
983 np->duplexmode = 2; /* full duplex mode */
984 else
985 np->duplexmode = 1; /* half duplex mode */
986 } else if (np->PHYType == AhdocPHY) {
987 unsigned int data;
988
989 data = mdio_read(dev, np->phys[0], DiagnosticReg);
990 if (data & Speed_100)
991 np->line_speed = 2; /* 100M */
992 else
993 np->line_speed = 1; /* 10M */
994 if (data & DPLX_FULL)
995 np->duplexmode = 2; /* full duplex mode */
996 else
997 np->duplexmode = 1; /* half duplex mode */
998 }
999 /* 89/6/13 add, (begin) */
1000 else if (np->PHYType == MarvellPHY) {
1001 unsigned int data;
1002
1003 data = mdio_read(dev, np->phys[0], SpecificReg);
1004 if (data & Full_Duplex)
1005 np->duplexmode = 2; /* full duplex mode */
1006 else
1007 np->duplexmode = 1; /* half duplex mode */
1008 data &= SpeedMask;
1009 if (data == Speed_1000M)
1010 np->line_speed = 3; /* 1000M */
1011 else if (data == Speed_100M)
1012 np->line_speed = 2; /* 100M */
1013 else
1014 np->line_speed = 1; /* 10M */
1015 }
1016 /* 89/6/13 add, (end) */
1017 /* 89/7/27 add, (begin) */
1018 else if (np->PHYType == Myson981) {
1019 unsigned int data;
1020
1021 data = mdio_read(dev, np->phys[0], StatusRegister);
1022
1023 if (data & SPEED100)
1024 np->line_speed = 2;
1025 else
1026 np->line_speed = 1;
1027
1028 if (data & FULLMODE)
1029 np->duplexmode = 2;
1030 else
1031 np->duplexmode = 1;
1032 }
1033 /* 89/7/27 add, (end) */
1034 /* 89/12/29 add */
1035 else if (np->PHYType == LevelOnePHY) {
1036 unsigned int data;
1037
1038 data = mdio_read(dev, np->phys[0], SpecificReg);
1039 if (data & LXT1000_Full)
1040 np->duplexmode = 2; /* full duplex mode */
1041 else
1042 np->duplexmode = 1; /* half duplex mode */
1043 data &= SpeedMask;
1044 if (data == LXT1000_1000M)
1045 np->line_speed = 3; /* 1000M */
1046 else if (data == LXT1000_100M)
1047 np->line_speed = 2; /* 100M */
1048 else
1049 np->line_speed = 1; /* 10M */
1050 }
1051 np->crvalue &= (~CR_W_PS10) & (~CR_W_FD) & (~CR_W_PS1000);
1052 if (np->line_speed == 1)
1053 np->crvalue |= CR_W_PS10;
1054 else if (np->line_speed == 3)
1055 np->crvalue |= CR_W_PS1000;
1056 if (np->duplexmode == 2)
1057 np->crvalue |= CR_W_FD;
1058 }
1059 }
1060
1061
1062 /* Take lock before calling this */
1063 static void allocate_rx_buffers(struct net_device *dev)
1064 {
1065 struct netdev_private *np = netdev_priv(dev);
1066
1067 /* allocate skb for rx buffers */
1068 while (np->really_rx_count != RX_RING_SIZE) {
1069 struct sk_buff *skb;
1070
1071 skb = dev_alloc_skb(np->rx_buf_sz);
1072 if (skb == NULL)
1073 break; /* Better luck next round. */
1074
1075 while (np->lack_rxbuf->skbuff)
1076 np->lack_rxbuf = np->lack_rxbuf->next_desc_logical;
1077
1078 skb->dev = dev; /* Mark as being used by this device. */
1079 np->lack_rxbuf->skbuff = skb;
1080 np->lack_rxbuf->buffer = pci_map_single(np->pci_dev, skb->data,
1081 np->rx_buf_sz, PCI_DMA_FROMDEVICE);
1082 np->lack_rxbuf->status = RXOWN;
1083 ++np->really_rx_count;
1084 }
1085 }
1086
1087
1088 static void netdev_timer(unsigned long data)
1089 {
1090 struct net_device *dev = (struct net_device *) data;
1091 struct netdev_private *np = netdev_priv(dev);
1092 void __iomem *ioaddr = np->mem;
1093 int old_crvalue = np->crvalue;
1094 unsigned int old_linkok = np->linkok;
1095 unsigned long flags;
1096
1097 if (debug)
1098 printk(KERN_DEBUG "%s: Media selection timer tick, status %8.8x "
1099 "config %8.8x.\n", dev->name, ioread32(ioaddr + ISR),
1100 ioread32(ioaddr + TCRRCR));
1101
1102 spin_lock_irqsave(&np->lock, flags);
1103
1104 if (np->flags == HAS_MII_XCVR) {
1105 getlinkstatus(dev);
1106 if ((old_linkok == 0) && (np->linkok == 1)) { /* we need to detect the media type again */
1107 getlinktype(dev);
1108 if (np->crvalue != old_crvalue) {
1109 stop_nic_rxtx(ioaddr, np->crvalue);
1110 iowrite32(np->crvalue, ioaddr + TCRRCR);
1111 }
1112 }
1113 }
1114
1115 allocate_rx_buffers(dev);
1116
1117 spin_unlock_irqrestore(&np->lock, flags);
1118
1119 np->timer.expires = RUN_AT(10 * HZ);
1120 add_timer(&np->timer);
1121 }
1122
1123
1124 /* Take lock before calling */
1125 /* Reset chip and disable rx, tx and interrupts */
1126 static void reset_and_disable_rxtx(struct net_device *dev)
1127 {
1128 struct netdev_private *np = netdev_priv(dev);
1129 void __iomem *ioaddr = np->mem;
1130 int delay=51;
1131
1132 /* Reset the chip's Tx and Rx processes. */
1133 stop_nic_rxtx(ioaddr, 0);
1134
1135 /* Disable interrupts by clearing the interrupt mask. */
1136 iowrite32(0, ioaddr + IMR);
1137
1138 /* Reset the chip to erase previous misconfiguration. */
1139 iowrite32(0x00000001, ioaddr + BCR);
1140
1141 /* Ueimor: wait for 50 PCI cycles (and flush posted writes btw).
1142 We surely wait too long (address+data phase). Who cares? */
1143 while (--delay) {
1144 ioread32(ioaddr + BCR);
1145 rmb();
1146 }
1147 }
1148
1149
1150 /* Take lock before calling */
1151 /* Restore chip after reset */
1152 static void enable_rxtx(struct net_device *dev)
1153 {
1154 struct netdev_private *np = netdev_priv(dev);
1155 void __iomem *ioaddr = np->mem;
1156
1157 reset_rx_descriptors(dev);
1158
1159 iowrite32(np->tx_ring_dma + ((char*)np->cur_tx - (char*)np->tx_ring),
1160 ioaddr + TXLBA);
1161 iowrite32(np->rx_ring_dma + ((char*)np->cur_rx - (char*)np->rx_ring),
1162 ioaddr + RXLBA);
1163
1164 iowrite32(np->bcrvalue, ioaddr + BCR);
1165
1166 iowrite32(0, ioaddr + RXPDR);
1167 __set_rx_mode(dev); /* changes np->crvalue, writes it into TCRRCR */
1168
1169 /* Clear and Enable interrupts by setting the interrupt mask. */
1170 iowrite32(FBE | TUNF | CNTOVF | RBU | TI | RI, ioaddr + ISR);
1171 iowrite32(np->imrvalue, ioaddr + IMR);
1172
1173 iowrite32(0, ioaddr + TXPDR);
1174 }
1175
1176
1177 static void reset_timer(unsigned long data)
1178 {
1179 struct net_device *dev = (struct net_device *) data;
1180 struct netdev_private *np = netdev_priv(dev);
1181 unsigned long flags;
1182
1183 printk(KERN_WARNING "%s: resetting tx and rx machinery\n", dev->name);
1184
1185 spin_lock_irqsave(&np->lock, flags);
1186 np->crvalue = np->crvalue_sv;
1187 np->imrvalue = np->imrvalue_sv;
1188
1189 reset_and_disable_rxtx(dev);
1190 /* works for me without this:
1191 reset_tx_descriptors(dev); */
1192 enable_rxtx(dev);
1193 netif_start_queue(dev); /* FIXME: or netif_wake_queue(dev); ? */
1194
1195 np->reset_timer_armed = 0;
1196
1197 spin_unlock_irqrestore(&np->lock, flags);
1198 }
1199
1200
1201 static void tx_timeout(struct net_device *dev)
1202 {
1203 struct netdev_private *np = netdev_priv(dev);
1204 void __iomem *ioaddr = np->mem;
1205 unsigned long flags;
1206 int i;
1207
1208 printk(KERN_WARNING "%s: Transmit timed out, status %8.8x,"
1209 " resetting...\n", dev->name, ioread32(ioaddr + ISR));
1210
1211 {
1212 printk(KERN_DEBUG " Rx ring %p: ", np->rx_ring);
1213 for (i = 0; i < RX_RING_SIZE; i++)
1214 printk(" %8.8x", (unsigned int) np->rx_ring[i].status);
1215 printk("\n" KERN_DEBUG " Tx ring %p: ", np->tx_ring);
1216 for (i = 0; i < TX_RING_SIZE; i++)
1217 printk(" %4.4x", np->tx_ring[i].status);
1218 printk("\n");
1219 }
1220
1221 spin_lock_irqsave(&np->lock, flags);
1222
1223 reset_and_disable_rxtx(dev);
1224 reset_tx_descriptors(dev);
1225 enable_rxtx(dev);
1226
1227 spin_unlock_irqrestore(&np->lock, flags);
1228
1229 dev->trans_start = jiffies;
1230 np->stats.tx_errors++;
1231 netif_wake_queue(dev); /* or .._start_.. ?? */
1232 }
1233
1234
1235 /* Initialize the Rx and Tx rings, along with various 'dev' bits. */
1236 static void init_ring(struct net_device *dev)
1237 {
1238 struct netdev_private *np = netdev_priv(dev);
1239 int i;
1240
1241 /* initialize rx variables */
1242 np->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);
1243 np->cur_rx = &np->rx_ring[0];
1244 np->lack_rxbuf = np->rx_ring;
1245 np->really_rx_count = 0;
1246
1247 /* initial rx descriptors. */
1248 for (i = 0; i < RX_RING_SIZE; i++) {
1249 np->rx_ring[i].status = 0;
1250 np->rx_ring[i].control = np->rx_buf_sz << RBSShift;
1251 np->rx_ring[i].next_desc = np->rx_ring_dma +
1252 (i + 1)*sizeof(struct fealnx_desc);
1253 np->rx_ring[i].next_desc_logical = &np->rx_ring[i + 1];
1254 np->rx_ring[i].skbuff = NULL;
1255 }
1256
1257 /* for the last rx descriptor */
1258 np->rx_ring[i - 1].next_desc = np->rx_ring_dma;
1259 np->rx_ring[i - 1].next_desc_logical = np->rx_ring;
1260
1261 /* allocate skb for rx buffers */
1262 for (i = 0; i < RX_RING_SIZE; i++) {
1263 struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz);
1264
1265 if (skb == NULL) {
1266 np->lack_rxbuf = &np->rx_ring[i];
1267 break;
1268 }
1269
1270 ++np->really_rx_count;
1271 np->rx_ring[i].skbuff = skb;
1272 skb->dev = dev; /* Mark as being used by this device. */
1273 np->rx_ring[i].buffer = pci_map_single(np->pci_dev, skb->data,
1274 np->rx_buf_sz, PCI_DMA_FROMDEVICE);
1275 np->rx_ring[i].status = RXOWN;
1276 np->rx_ring[i].control |= RXIC;
1277 }
1278
1279 /* initialize tx variables */
1280 np->cur_tx = &np->tx_ring[0];
1281 np->cur_tx_copy = &np->tx_ring[0];
1282 np->really_tx_count = 0;
1283 np->free_tx_count = TX_RING_SIZE;
1284
1285 for (i = 0; i < TX_RING_SIZE; i++) {
1286 np->tx_ring[i].status = 0;
1287 /* do we need np->tx_ring[i].control = XXX; ?? */
1288 np->tx_ring[i].next_desc = np->tx_ring_dma +
1289 (i + 1)*sizeof(struct fealnx_desc);
1290 np->tx_ring[i].next_desc_logical = &np->tx_ring[i + 1];
1291 np->tx_ring[i].skbuff = NULL;
1292 }
1293
1294 /* for the last tx descriptor */
1295 np->tx_ring[i - 1].next_desc = np->tx_ring_dma;
1296 np->tx_ring[i - 1].next_desc_logical = &np->tx_ring[0];
1297 }
1298
1299
1300 static int start_tx(struct sk_buff *skb, struct net_device *dev)
1301 {
1302 struct netdev_private *np = netdev_priv(dev);
1303 unsigned long flags;
1304
1305 spin_lock_irqsave(&np->lock, flags);
1306
1307 np->cur_tx_copy->skbuff = skb;
1308
1309 #define one_buffer
1310 #define BPT 1022
1311 #if defined(one_buffer)
1312 np->cur_tx_copy->buffer = pci_map_single(np->pci_dev, skb->data,
1313 skb->len, PCI_DMA_TODEVICE);
1314 np->cur_tx_copy->control = TXIC | TXLD | TXFD | CRCEnable | PADEnable;
1315 np->cur_tx_copy->control |= (skb->len << PKTSShift); /* pkt size */
1316 np->cur_tx_copy->control |= (skb->len << TBSShift); /* buffer size */
1317 // 89/12/29 add,
1318 if (np->pci_dev->device == 0x891)
1319 np->cur_tx_copy->control |= ETIControl | RetryTxLC;
1320 np->cur_tx_copy->status = TXOWN;
1321 np->cur_tx_copy = np->cur_tx_copy->next_desc_logical;
1322 --np->free_tx_count;
1323 #elif defined(two_buffer)
1324 if (skb->len > BPT) {
1325 struct fealnx_desc *next;
1326
1327 /* for the first descriptor */
1328 np->cur_tx_copy->buffer = pci_map_single(np->pci_dev, skb->data,
1329 BPT, PCI_DMA_TODEVICE);
1330 np->cur_tx_copy->control = TXIC | TXFD | CRCEnable | PADEnable;
1331 np->cur_tx_copy->control |= (skb->len << PKTSShift); /* pkt size */
1332 np->cur_tx_copy->control |= (BPT << TBSShift); /* buffer size */
1333
1334 /* for the last descriptor */
1335 next = np->cur_tx_copy->next_desc_logical;
1336 next->skbuff = skb;
1337 next->control = TXIC | TXLD | CRCEnable | PADEnable;
1338 next->control |= (skb->len << PKTSShift); /* pkt size */
1339 next->control |= ((skb->len - BPT) << TBSShift); /* buf size */
1340 // 89/12/29 add,
1341 if (np->pci_dev->device == 0x891)
1342 np->cur_tx_copy->control |= ETIControl | RetryTxLC;
1343 next->buffer = pci_map_single(ep->pci_dev, skb->data + BPT,
1344 skb->len - BPT, PCI_DMA_TODEVICE);
1345
1346 next->status = TXOWN;
1347 np->cur_tx_copy->status = TXOWN;
1348
1349 np->cur_tx_copy = next->next_desc_logical;
1350 np->free_tx_count -= 2;
1351 } else {
1352 np->cur_tx_copy->buffer = pci_map_single(np->pci_dev, skb->data,
1353 skb->len, PCI_DMA_TODEVICE);
1354 np->cur_tx_copy->control = TXIC | TXLD | TXFD | CRCEnable | PADEnable;
1355 np->cur_tx_copy->control |= (skb->len << PKTSShift); /* pkt size */
1356 np->cur_tx_copy->control |= (skb->len << TBSShift); /* buffer size */
1357 // 89/12/29 add,
1358 if (np->pci_dev->device == 0x891)
1359 np->cur_tx_copy->control |= ETIControl | RetryTxLC;
1360 np->cur_tx_copy->status = TXOWN;
1361 np->cur_tx_copy = np->cur_tx_copy->next_desc_logical;
1362 --np->free_tx_count;
1363 }
1364 #endif
1365
1366 if (np->free_tx_count < 2)
1367 netif_stop_queue(dev);
1368 ++np->really_tx_count;
1369 iowrite32(0, np->mem + TXPDR);
1370 dev->trans_start = jiffies;
1371
1372 spin_unlock_irqrestore(&np->lock, flags);
1373 return 0;
1374 }
1375
1376
1377 /* Take lock before calling */
1378 /* Chip probably hosed tx ring. Clean up. */
1379 static void reset_tx_descriptors(struct net_device *dev)
1380 {
1381 struct netdev_private *np = netdev_priv(dev);
1382 struct fealnx_desc *cur;
1383 int i;
1384
1385 /* initialize tx variables */
1386 np->cur_tx = &np->tx_ring[0];
1387 np->cur_tx_copy = &np->tx_ring[0];
1388 np->really_tx_count = 0;
1389 np->free_tx_count = TX_RING_SIZE;
1390
1391 for (i = 0; i < TX_RING_SIZE; i++) {
1392 cur = &np->tx_ring[i];
1393 if (cur->skbuff) {
1394 pci_unmap_single(np->pci_dev, cur->buffer,
1395 cur->skbuff->len, PCI_DMA_TODEVICE);
1396 dev_kfree_skb_any(cur->skbuff);
1397 cur->skbuff = NULL;
1398 }
1399 cur->status = 0;
1400 cur->control = 0; /* needed? */
1401 /* probably not needed. We do it for purely paranoid reasons */
1402 cur->next_desc = np->tx_ring_dma +
1403 (i + 1)*sizeof(struct fealnx_desc);
1404 cur->next_desc_logical = &np->tx_ring[i + 1];
1405 }
1406 /* for the last tx descriptor */
1407 np->tx_ring[TX_RING_SIZE - 1].next_desc = np->tx_ring_dma;
1408 np->tx_ring[TX_RING_SIZE - 1].next_desc_logical = &np->tx_ring[0];
1409 }
1410
1411
1412 /* Take lock and stop rx before calling this */
1413 static void reset_rx_descriptors(struct net_device *dev)
1414 {
1415 struct netdev_private *np = netdev_priv(dev);
1416 struct fealnx_desc *cur = np->cur_rx;
1417 int i;
1418
1419 allocate_rx_buffers(dev);
1420
1421 for (i = 0; i < RX_RING_SIZE; i++) {
1422 if (cur->skbuff)
1423 cur->status = RXOWN;
1424 cur = cur->next_desc_logical;
1425 }
1426
1427 iowrite32(np->rx_ring_dma + ((char*)np->cur_rx - (char*)np->rx_ring),
1428 np->mem + RXLBA);
1429 }
1430
1431
1432 /* The interrupt handler does all of the Rx thread work and cleans up
1433 after the Tx thread. */
1434 static irqreturn_t intr_handler(int irq, void *dev_instance)
1435 {
1436 struct net_device *dev = (struct net_device *) dev_instance;
1437 struct netdev_private *np = netdev_priv(dev);
1438 void __iomem *ioaddr = np->mem;
1439 long boguscnt = max_interrupt_work;
1440 unsigned int num_tx = 0;
1441 int handled = 0;
1442
1443 spin_lock(&np->lock);
1444
1445 iowrite32(0, ioaddr + IMR);
1446
1447 do {
1448 u32 intr_status = ioread32(ioaddr + ISR);
1449
1450 /* Acknowledge all of the current interrupt sources ASAP. */
1451 iowrite32(intr_status, ioaddr + ISR);
1452
1453 if (debug)
1454 printk(KERN_DEBUG "%s: Interrupt, status %4.4x.\n", dev->name,
1455 intr_status);
1456
1457 if (!(intr_status & np->imrvalue))
1458 break;
1459
1460 handled = 1;
1461
1462 // 90/1/16 delete,
1463 //
1464 // if (intr_status & FBE)
1465 // { /* fatal error */
1466 // stop_nic_tx(ioaddr, 0);
1467 // stop_nic_rx(ioaddr, 0);
1468 // break;
1469 // };
1470
1471 if (intr_status & TUNF)
1472 iowrite32(0, ioaddr + TXPDR);
1473
1474 if (intr_status & CNTOVF) {
1475 /* missed pkts */
1476 np->stats.rx_missed_errors += ioread32(ioaddr + TALLY) & 0x7fff;
1477
1478 /* crc error */
1479 np->stats.rx_crc_errors +=
1480 (ioread32(ioaddr + TALLY) & 0x7fff0000) >> 16;
1481 }
1482
1483 if (intr_status & (RI | RBU)) {
1484 if (intr_status & RI)
1485 netdev_rx(dev);
1486 else {
1487 stop_nic_rx(ioaddr, np->crvalue);
1488 reset_rx_descriptors(dev);
1489 iowrite32(np->crvalue, ioaddr + TCRRCR);
1490 }
1491 }
1492
1493 while (np->really_tx_count) {
1494 long tx_status = np->cur_tx->status;
1495 long tx_control = np->cur_tx->control;
1496
1497 if (!(tx_control & TXLD)) { /* this pkt is combined by two tx descriptors */
1498 struct fealnx_desc *next;
1499
1500 next = np->cur_tx->next_desc_logical;
1501 tx_status = next->status;
1502 tx_control = next->control;
1503 }
1504
1505 if (tx_status & TXOWN)
1506 break;
1507
1508 if (!(np->crvalue & CR_W_ENH)) {
1509 if (tx_status & (CSL | LC | EC | UDF | HF)) {
1510 np->stats.tx_errors++;
1511 if (tx_status & EC)
1512 np->stats.tx_aborted_errors++;
1513 if (tx_status & CSL)
1514 np->stats.tx_carrier_errors++;
1515 if (tx_status & LC)
1516 np->stats.tx_window_errors++;
1517 if (tx_status & UDF)
1518 np->stats.tx_fifo_errors++;
1519 if ((tx_status & HF) && np->mii.full_duplex == 0)
1520 np->stats.tx_heartbeat_errors++;
1521
1522 } else {
1523 np->stats.tx_bytes +=
1524 ((tx_control & PKTSMask) >> PKTSShift);
1525
1526 np->stats.collisions +=
1527 ((tx_status & NCRMask) >> NCRShift);
1528 np->stats.tx_packets++;
1529 }
1530 } else {
1531 np->stats.tx_bytes +=
1532 ((tx_control & PKTSMask) >> PKTSShift);
1533 np->stats.tx_packets++;
1534 }
1535
1536 /* Free the original skb. */
1537 pci_unmap_single(np->pci_dev, np->cur_tx->buffer,
1538 np->cur_tx->skbuff->len, PCI_DMA_TODEVICE);
1539 dev_kfree_skb_irq(np->cur_tx->skbuff);
1540 np->cur_tx->skbuff = NULL;
1541 --np->really_tx_count;
1542 if (np->cur_tx->control & TXLD) {
1543 np->cur_tx = np->cur_tx->next_desc_logical;
1544 ++np->free_tx_count;
1545 } else {
1546 np->cur_tx = np->cur_tx->next_desc_logical;
1547 np->cur_tx = np->cur_tx->next_desc_logical;
1548 np->free_tx_count += 2;
1549 }
1550 num_tx++;
1551 } /* end of for loop */
1552
1553 if (num_tx && np->free_tx_count >= 2)
1554 netif_wake_queue(dev);
1555
1556 /* read transmit status for enhanced mode only */
1557 if (np->crvalue & CR_W_ENH) {
1558 long data;
1559
1560 data = ioread32(ioaddr + TSR);
1561 np->stats.tx_errors += (data & 0xff000000) >> 24;
1562 np->stats.tx_aborted_errors += (data & 0xff000000) >> 24;
1563 np->stats.tx_window_errors += (data & 0x00ff0000) >> 16;
1564 np->stats.collisions += (data & 0x0000ffff);
1565 }
1566
1567 if (--boguscnt < 0) {
1568 printk(KERN_WARNING "%s: Too much work at interrupt, "
1569 "status=0x%4.4x.\n", dev->name, intr_status);
1570 if (!np->reset_timer_armed) {
1571 np->reset_timer_armed = 1;
1572 np->reset_timer.expires = RUN_AT(HZ/2);
1573 add_timer(&np->reset_timer);
1574 stop_nic_rxtx(ioaddr, 0);
1575 netif_stop_queue(dev);
1576 /* or netif_tx_disable(dev); ?? */
1577 /* Prevent other paths from enabling tx,rx,intrs */
1578 np->crvalue_sv = np->crvalue;
1579 np->imrvalue_sv = np->imrvalue;
1580 np->crvalue &= ~(CR_W_TXEN | CR_W_RXEN); /* or simply = 0? */
1581 np->imrvalue = 0;
1582 }
1583
1584 break;
1585 }
1586 } while (1);
1587
1588 /* read the tally counters */
1589 /* missed pkts */
1590 np->stats.rx_missed_errors += ioread32(ioaddr + TALLY) & 0x7fff;
1591
1592 /* crc error */
1593 np->stats.rx_crc_errors += (ioread32(ioaddr + TALLY) & 0x7fff0000) >> 16;
1594
1595 if (debug)
1596 printk(KERN_DEBUG "%s: exiting interrupt, status=%#4.4x.\n",
1597 dev->name, ioread32(ioaddr + ISR));
1598
1599 iowrite32(np->imrvalue, ioaddr + IMR);
1600
1601 spin_unlock(&np->lock);
1602
1603 return IRQ_RETVAL(handled);
1604 }
1605
1606
1607 /* This routine is logically part of the interrupt handler, but separated
1608 for clarity and better register allocation. */
1609 static int netdev_rx(struct net_device *dev)
1610 {
1611 struct netdev_private *np = netdev_priv(dev);
1612 void __iomem *ioaddr = np->mem;
1613
1614 /* If EOP is set on the next entry, it's a new packet. Send it up. */
1615 while (!(np->cur_rx->status & RXOWN) && np->cur_rx->skbuff) {
1616 s32 rx_status = np->cur_rx->status;
1617
1618 if (np->really_rx_count == 0)
1619 break;
1620
1621 if (debug)
1622 printk(KERN_DEBUG " netdev_rx() status was %8.8x.\n", rx_status);
1623
1624 if ((!((rx_status & RXFSD) && (rx_status & RXLSD)))
1625 || (rx_status & ErrorSummary)) {
1626 if (rx_status & ErrorSummary) { /* there was a fatal error */
1627 if (debug)
1628 printk(KERN_DEBUG
1629 "%s: Receive error, Rx status %8.8x.\n",
1630 dev->name, rx_status);
1631
1632 np->stats.rx_errors++; /* end of a packet. */
1633 if (rx_status & (LONG | RUNT))
1634 np->stats.rx_length_errors++;
1635 if (rx_status & RXER)
1636 np->stats.rx_frame_errors++;
1637 if (rx_status & CRC)
1638 np->stats.rx_crc_errors++;
1639 } else {
1640 int need_to_reset = 0;
1641 int desno = 0;
1642
1643 if (rx_status & RXFSD) { /* this pkt is too long, over one rx buffer */
1644 struct fealnx_desc *cur;
1645
1646 /* check this packet is received completely? */
1647 cur = np->cur_rx;
1648 while (desno <= np->really_rx_count) {
1649 ++desno;
1650 if ((!(cur->status & RXOWN))
1651 && (cur->status & RXLSD))
1652 break;
1653 /* goto next rx descriptor */
1654 cur = cur->next_desc_logical;
1655 }
1656 if (desno > np->really_rx_count)
1657 need_to_reset = 1;
1658 } else /* RXLSD did not find, something error */
1659 need_to_reset = 1;
1660
1661 if (need_to_reset == 0) {
1662 int i;
1663
1664 np->stats.rx_length_errors++;
1665
1666 /* free all rx descriptors related this long pkt */
1667 for (i = 0; i < desno; ++i) {
1668 if (!np->cur_rx->skbuff) {
1669 printk(KERN_DEBUG
1670 "%s: I'm scared\n", dev->name);
1671 break;
1672 }
1673 np->cur_rx->status = RXOWN;
1674 np->cur_rx = np->cur_rx->next_desc_logical;
1675 }
1676 continue;
1677 } else { /* rx error, need to reset this chip */
1678 stop_nic_rx(ioaddr, np->crvalue);
1679 reset_rx_descriptors(dev);
1680 iowrite32(np->crvalue, ioaddr + TCRRCR);
1681 }
1682 break; /* exit the while loop */
1683 }
1684 } else { /* this received pkt is ok */
1685
1686 struct sk_buff *skb;
1687 /* Omit the four octet CRC from the length. */
1688 short pkt_len = ((rx_status & FLNGMASK) >> FLNGShift) - 4;
1689
1690 #ifndef final_version
1691 if (debug)
1692 printk(KERN_DEBUG " netdev_rx() normal Rx pkt length %d"
1693 " status %x.\n", pkt_len, rx_status);
1694 #endif
1695
1696 /* Check if the packet is long enough to accept without copying
1697 to a minimally-sized skbuff. */
1698 if (pkt_len < rx_copybreak &&
1699 (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
1700 skb_reserve(skb, 2); /* 16 byte align the IP header */
1701 pci_dma_sync_single_for_cpu(np->pci_dev,
1702 np->cur_rx->buffer,
1703 np->rx_buf_sz,
1704 PCI_DMA_FROMDEVICE);
1705 /* Call copy + cksum if available. */
1706
1707 #if ! defined(__alpha__)
1708 skb_copy_to_linear_data(skb,
1709 np->cur_rx->skbuff->data, pkt_len);
1710 skb_put(skb, pkt_len);
1711 #else
1712 memcpy(skb_put(skb, pkt_len),
1713 np->cur_rx->skbuff->data, pkt_len);
1714 #endif
1715 pci_dma_sync_single_for_device(np->pci_dev,
1716 np->cur_rx->buffer,
1717 np->rx_buf_sz,
1718 PCI_DMA_FROMDEVICE);
1719 } else {
1720 pci_unmap_single(np->pci_dev,
1721 np->cur_rx->buffer,
1722 np->rx_buf_sz,
1723 PCI_DMA_FROMDEVICE);
1724 skb_put(skb = np->cur_rx->skbuff, pkt_len);
1725 np->cur_rx->skbuff = NULL;
1726 --np->really_rx_count;
1727 }
1728 skb->protocol = eth_type_trans(skb, dev);
1729 netif_rx(skb);
1730 dev->last_rx = jiffies;
1731 np->stats.rx_packets++;
1732 np->stats.rx_bytes += pkt_len;
1733 }
1734
1735 np->cur_rx = np->cur_rx->next_desc_logical;
1736 } /* end of while loop */
1737
1738 /* allocate skb for rx buffers */
1739 allocate_rx_buffers(dev);
1740
1741 return 0;
1742 }
1743
1744
1745 static struct net_device_stats *get_stats(struct net_device *dev)
1746 {
1747 struct netdev_private *np = netdev_priv(dev);
1748 void __iomem *ioaddr = np->mem;
1749
1750 /* The chip only need report frame silently dropped. */
1751 if (netif_running(dev)) {
1752 np->stats.rx_missed_errors += ioread32(ioaddr + TALLY) & 0x7fff;
1753 np->stats.rx_crc_errors += (ioread32(ioaddr + TALLY) & 0x7fff0000) >> 16;
1754 }
1755
1756 return &np->stats;
1757 }
1758
1759
1760 /* for dev->set_multicast_list */
1761 static void set_rx_mode(struct net_device *dev)
1762 {
1763 spinlock_t *lp = &((struct netdev_private *)netdev_priv(dev))->lock;
1764 unsigned long flags;
1765 spin_lock_irqsave(lp, flags);
1766 __set_rx_mode(dev);
1767 spin_unlock_irqrestore(lp, flags);
1768 }
1769
1770
1771 /* Take lock before calling */
1772 static void __set_rx_mode(struct net_device *dev)
1773 {
1774 struct netdev_private *np = netdev_priv(dev);
1775 void __iomem *ioaddr = np->mem;
1776 u32 mc_filter[2]; /* Multicast hash filter */
1777 u32 rx_mode;
1778
1779 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
1780 memset(mc_filter, 0xff, sizeof(mc_filter));
1781 rx_mode = CR_W_PROM | CR_W_AB | CR_W_AM;
1782 } else if ((dev->mc_count > multicast_filter_limit)
1783 || (dev->flags & IFF_ALLMULTI)) {
1784 /* Too many to match, or accept all multicasts. */
1785 memset(mc_filter, 0xff, sizeof(mc_filter));
1786 rx_mode = CR_W_AB | CR_W_AM;
1787 } else {
1788 struct dev_mc_list *mclist;
1789 int i;
1790
1791 memset(mc_filter, 0, sizeof(mc_filter));
1792 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
1793 i++, mclist = mclist->next) {
1794 unsigned int bit;
1795 bit = (ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26) ^ 0x3F;
1796 mc_filter[bit >> 5] |= (1 << bit);
1797 }
1798 rx_mode = CR_W_AB | CR_W_AM;
1799 }
1800
1801 stop_nic_rxtx(ioaddr, np->crvalue);
1802
1803 iowrite32(mc_filter[0], ioaddr + MAR0);
1804 iowrite32(mc_filter[1], ioaddr + MAR1);
1805 np->crvalue &= ~CR_W_RXMODEMASK;
1806 np->crvalue |= rx_mode;
1807 iowrite32(np->crvalue, ioaddr + TCRRCR);
1808 }
1809
1810 static void netdev_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1811 {
1812 struct netdev_private *np = netdev_priv(dev);
1813
1814 strcpy(info->driver, DRV_NAME);
1815 strcpy(info->version, DRV_VERSION);
1816 strcpy(info->bus_info, pci_name(np->pci_dev));
1817 }
1818
1819 static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1820 {
1821 struct netdev_private *np = netdev_priv(dev);
1822 int rc;
1823
1824 spin_lock_irq(&np->lock);
1825 rc = mii_ethtool_gset(&np->mii, cmd);
1826 spin_unlock_irq(&np->lock);
1827
1828 return rc;
1829 }
1830
1831 static int netdev_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1832 {
1833 struct netdev_private *np = netdev_priv(dev);
1834 int rc;
1835
1836 spin_lock_irq(&np->lock);
1837 rc = mii_ethtool_sset(&np->mii, cmd);
1838 spin_unlock_irq(&np->lock);
1839
1840 return rc;
1841 }
1842
1843 static int netdev_nway_reset(struct net_device *dev)
1844 {
1845 struct netdev_private *np = netdev_priv(dev);
1846 return mii_nway_restart(&np->mii);
1847 }
1848
1849 static u32 netdev_get_link(struct net_device *dev)
1850 {
1851 struct netdev_private *np = netdev_priv(dev);
1852 return mii_link_ok(&np->mii);
1853 }
1854
1855 static u32 netdev_get_msglevel(struct net_device *dev)
1856 {
1857 return debug;
1858 }
1859
1860 static void netdev_set_msglevel(struct net_device *dev, u32 value)
1861 {
1862 debug = value;
1863 }
1864
1865 static const struct ethtool_ops netdev_ethtool_ops = {
1866 .get_drvinfo = netdev_get_drvinfo,
1867 .get_settings = netdev_get_settings,
1868 .set_settings = netdev_set_settings,
1869 .nway_reset = netdev_nway_reset,
1870 .get_link = netdev_get_link,
1871 .get_msglevel = netdev_get_msglevel,
1872 .set_msglevel = netdev_set_msglevel,
1873 };
1874
1875 static int mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1876 {
1877 struct netdev_private *np = netdev_priv(dev);
1878 int rc;
1879
1880 if (!netif_running(dev))
1881 return -EINVAL;
1882
1883 spin_lock_irq(&np->lock);
1884 rc = generic_mii_ioctl(&np->mii, if_mii(rq), cmd, NULL);
1885 spin_unlock_irq(&np->lock);
1886
1887 return rc;
1888 }
1889
1890
1891 static int netdev_close(struct net_device *dev)
1892 {
1893 struct netdev_private *np = netdev_priv(dev);
1894 void __iomem *ioaddr = np->mem;
1895 int i;
1896
1897 netif_stop_queue(dev);
1898
1899 /* Disable interrupts by clearing the interrupt mask. */
1900 iowrite32(0x0000, ioaddr + IMR);
1901
1902 /* Stop the chip's Tx and Rx processes. */
1903 stop_nic_rxtx(ioaddr, 0);
1904
1905 del_timer_sync(&np->timer);
1906 del_timer_sync(&np->reset_timer);
1907
1908 free_irq(dev->irq, dev);
1909
1910 /* Free all the skbuffs in the Rx queue. */
1911 for (i = 0; i < RX_RING_SIZE; i++) {
1912 struct sk_buff *skb = np->rx_ring[i].skbuff;
1913
1914 np->rx_ring[i].status = 0;
1915 if (skb) {
1916 pci_unmap_single(np->pci_dev, np->rx_ring[i].buffer,
1917 np->rx_buf_sz, PCI_DMA_FROMDEVICE);
1918 dev_kfree_skb(skb);
1919 np->rx_ring[i].skbuff = NULL;
1920 }
1921 }
1922
1923 for (i = 0; i < TX_RING_SIZE; i++) {
1924 struct sk_buff *skb = np->tx_ring[i].skbuff;
1925
1926 if (skb) {
1927 pci_unmap_single(np->pci_dev, np->tx_ring[i].buffer,
1928 skb->len, PCI_DMA_TODEVICE);
1929 dev_kfree_skb(skb);
1930 np->tx_ring[i].skbuff = NULL;
1931 }
1932 }
1933
1934 return 0;
1935 }
1936
1937 static struct pci_device_id fealnx_pci_tbl[] = {
1938 {0x1516, 0x0800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1939 {0x1516, 0x0803, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
1940 {0x1516, 0x0891, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
1941 {} /* terminate list */
1942 };
1943 MODULE_DEVICE_TABLE(pci, fealnx_pci_tbl);
1944
1945
1946 static struct pci_driver fealnx_driver = {
1947 .name = "fealnx",
1948 .id_table = fealnx_pci_tbl,
1949 .probe = fealnx_init_one,
1950 .remove = __devexit_p(fealnx_remove_one),
1951 };
1952
1953 static int __init fealnx_init(void)
1954 {
1955 /* when a module, this is printed whether or not devices are found in probe */
1956 #ifdef MODULE
1957 printk(version);
1958 #endif
1959
1960 return pci_register_driver(&fealnx_driver);
1961 }
1962
1963 static void __exit fealnx_exit(void)
1964 {
1965 pci_unregister_driver(&fealnx_driver);
1966 }
1967
1968 module_init(fealnx_init);
1969 module_exit(fealnx_exit);
Linux kernel - Deliverables
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