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Linux-2.6.12-rc2
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / fealnx.c
blobd05e9dd1e14011a99df9f4d77955512a1dc561c4
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 "2.51"
29 #define DRV_RELDATE "Nov-17-2001"
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
94 /* These identify the driver base version and may not be removed. */
95 static char version[] __devinitdata =
96 KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE "\n";
97
98
99 /* This driver was written to use PCI memory space, however some x86 systems
100 work only with I/O space accesses. */
101 #ifndef __alpha__
102 #define USE_IO_OPS
103 #endif
104
105 /* Kernel compatibility defines, some common to David Hinds' PCMCIA package. */
106 /* This is only in the support-all-kernels source code. */
107
108 #define RUN_AT(x) (jiffies + (x))
109
110 MODULE_AUTHOR("Myson or whoever");
111 MODULE_DESCRIPTION("Myson MTD-8xx 100/10M Ethernet PCI Adapter Driver");
112 MODULE_LICENSE("GPL");
113 module_param(max_interrupt_work, int, 0);
114 //MODULE_PARM(min_pci_latency, "i");
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 #define MIN_REGION_SIZE 136
128
129 enum pci_flags_bit {
130 PCI_USES_IO = 1,
131 PCI_USES_MEM = 2,
132 PCI_USES_MASTER = 4,
133 PCI_ADDR0 = 0x10 << 0,
134 PCI_ADDR1 = 0x10 << 1,
135 PCI_ADDR2 = 0x10 << 2,
136 PCI_ADDR3 = 0x10 << 3,
137 };
138
139 /* A chip capabilities table, matching the entries in pci_tbl[] above. */
140 enum chip_capability_flags {
141 HAS_MII_XCVR,
142 HAS_CHIP_XCVR,
143 };
144
145 /* 89/6/13 add, */
146 /* for different PHY */
147 enum phy_type_flags {
148 MysonPHY = 1,
149 AhdocPHY = 2,
150 SeeqPHY = 3,
151 MarvellPHY = 4,
152 Myson981 = 5,
153 LevelOnePHY = 6,
154 OtherPHY = 10,
155 };
156
157 struct chip_info {
158 char *chip_name;
159 int io_size;
160 int flags;
161 };
162
163 static struct chip_info skel_netdrv_tbl[] = {
164 {"100/10M Ethernet PCI Adapter", 136, HAS_MII_XCVR},
165 {"100/10M Ethernet PCI Adapter", 136, HAS_CHIP_XCVR},
166 {"1000/100/10M Ethernet PCI Adapter", 136, HAS_MII_XCVR},
167 };
168
169 /* Offsets to the Command and Status Registers. */
170 enum fealnx_offsets {
171 PAR0 = 0x0, /* physical address 0-3 */
172 PAR1 = 0x04, /* physical address 4-5 */
173 MAR0 = 0x08, /* multicast address 0-3 */
174 MAR1 = 0x0C, /* multicast address 4-7 */
175 FAR0 = 0x10, /* flow-control address 0-3 */
176 FAR1 = 0x14, /* flow-control address 4-5 */
177 TCRRCR = 0x18, /* receive & transmit configuration */
178 BCR = 0x1C, /* bus command */
179 TXPDR = 0x20, /* transmit polling demand */
180 RXPDR = 0x24, /* receive polling demand */
181 RXCWP = 0x28, /* receive current word pointer */
182 TXLBA = 0x2C, /* transmit list base address */
183 RXLBA = 0x30, /* receive list base address */
184 ISR = 0x34, /* interrupt status */
185 IMR = 0x38, /* interrupt mask */
186 FTH = 0x3C, /* flow control high/low threshold */
187 MANAGEMENT = 0x40, /* bootrom/eeprom and mii management */
188 TALLY = 0x44, /* tally counters for crc and mpa */
189 TSR = 0x48, /* tally counter for transmit status */
190 BMCRSR = 0x4c, /* basic mode control and status */
191 PHYIDENTIFIER = 0x50, /* phy identifier */
192 ANARANLPAR = 0x54, /* auto-negotiation advertisement and link
193 partner ability */
194 ANEROCR = 0x58, /* auto-negotiation expansion and pci conf. */
195 BPREMRPSR = 0x5c, /* bypass & receive error mask and phy status */
196 };
197
198 /* Bits in the interrupt status/enable registers. */
199 /* The bits in the Intr Status/Enable registers, mostly interrupt sources. */
200 enum intr_status_bits {
201 RFCON = 0x00020000, /* receive flow control xon packet */
202 RFCOFF = 0x00010000, /* receive flow control xoff packet */
203 LSCStatus = 0x00008000, /* link status change */
204 ANCStatus = 0x00004000, /* autonegotiation completed */
205 FBE = 0x00002000, /* fatal bus error */
206 FBEMask = 0x00001800, /* mask bit12-11 */
207 ParityErr = 0x00000000, /* parity error */
208 TargetErr = 0x00001000, /* target abort */
209 MasterErr = 0x00000800, /* master error */
210 TUNF = 0x00000400, /* transmit underflow */
211 ROVF = 0x00000200, /* receive overflow */
212 ETI = 0x00000100, /* transmit early int */
213 ERI = 0x00000080, /* receive early int */
214 CNTOVF = 0x00000040, /* counter overflow */
215 RBU = 0x00000020, /* receive buffer unavailable */
216 TBU = 0x00000010, /* transmit buffer unavilable */
217 TI = 0x00000008, /* transmit interrupt */
218 RI = 0x00000004, /* receive interrupt */
219 RxErr = 0x00000002, /* receive error */
220 };
221
222 /* Bits in the NetworkConfig register, W for writing, R for reading */
223 /* FIXME: some names are invented by me. Marked with (name?) */
224 /* If you have docs and know bit names, please fix 'em */
225 enum rx_mode_bits {
226 CR_W_ENH = 0x02000000, /* enhanced mode (name?) */
227 CR_W_FD = 0x00100000, /* full duplex */
228 CR_W_PS10 = 0x00080000, /* 10 mbit */
229 CR_W_TXEN = 0x00040000, /* tx enable (name?) */
230 CR_W_PS1000 = 0x00010000, /* 1000 mbit */
231 /* CR_W_RXBURSTMASK= 0x00000e00, Im unsure about this */
232 CR_W_RXMODEMASK = 0x000000e0,
233 CR_W_PROM = 0x00000080, /* promiscuous mode */
234 CR_W_AB = 0x00000040, /* accept broadcast */
235 CR_W_AM = 0x00000020, /* accept mutlicast */
236 CR_W_ARP = 0x00000008, /* receive runt pkt */
237 CR_W_ALP = 0x00000004, /* receive long pkt */
238 CR_W_SEP = 0x00000002, /* receive error pkt */
239 CR_W_RXEN = 0x00000001, /* rx enable (unicast?) (name?) */
240
241 CR_R_TXSTOP = 0x04000000, /* tx stopped (name?) */
242 CR_R_FD = 0x00100000, /* full duplex detected */
243 CR_R_PS10 = 0x00080000, /* 10 mbit detected */
244 CR_R_RXSTOP = 0x00008000, /* rx stopped (name?) */
245 };
246
247 /* The Tulip Rx and Tx buffer descriptors. */
248 struct fealnx_desc {
249 s32 status;
250 s32 control;
251 u32 buffer;
252 u32 next_desc;
253 struct fealnx_desc *next_desc_logical;
254 struct sk_buff *skbuff;
255 u32 reserved1;
256 u32 reserved2;
257 };
258
259 /* Bits in network_desc.status */
260 enum rx_desc_status_bits {
261 RXOWN = 0x80000000, /* own bit */
262 FLNGMASK = 0x0fff0000, /* frame length */
263 FLNGShift = 16,
264 MARSTATUS = 0x00004000, /* multicast address received */
265 BARSTATUS = 0x00002000, /* broadcast address received */
266 PHYSTATUS = 0x00001000, /* physical address received */
267 RXFSD = 0x00000800, /* first descriptor */
268 RXLSD = 0x00000400, /* last descriptor */
269 ErrorSummary = 0x80, /* error summary */
270 RUNT = 0x40, /* runt packet received */
271 LONG = 0x20, /* long packet received */
272 FAE = 0x10, /* frame align error */
273 CRC = 0x08, /* crc error */
274 RXER = 0x04, /* receive error */
275 };
276
277 enum rx_desc_control_bits {
278 RXIC = 0x00800000, /* interrupt control */
279 RBSShift = 0,
280 };
281
282 enum tx_desc_status_bits {
283 TXOWN = 0x80000000, /* own bit */
284 JABTO = 0x00004000, /* jabber timeout */
285 CSL = 0x00002000, /* carrier sense lost */
286 LC = 0x00001000, /* late collision */
287 EC = 0x00000800, /* excessive collision */
288 UDF = 0x00000400, /* fifo underflow */
289 DFR = 0x00000200, /* deferred */
290 HF = 0x00000100, /* heartbeat fail */
291 NCRMask = 0x000000ff, /* collision retry count */
292 NCRShift = 0,
293 };
294
295 enum tx_desc_control_bits {
296 TXIC = 0x80000000, /* interrupt control */
297 ETIControl = 0x40000000, /* early transmit interrupt */
298 TXLD = 0x20000000, /* last descriptor */
299 TXFD = 0x10000000, /* first descriptor */
300 CRCEnable = 0x08000000, /* crc control */
301 PADEnable = 0x04000000, /* padding control */
302 RetryTxLC = 0x02000000, /* retry late collision */
303 PKTSMask = 0x3ff800, /* packet size bit21-11 */
304 PKTSShift = 11,
305 TBSMask = 0x000007ff, /* transmit buffer bit 10-0 */
306 TBSShift = 0,
307 };
308
309 /* BootROM/EEPROM/MII Management Register */
310 #define MASK_MIIR_MII_READ 0x00000000
311 #define MASK_MIIR_MII_WRITE 0x00000008
312 #define MASK_MIIR_MII_MDO 0x00000004
313 #define MASK_MIIR_MII_MDI 0x00000002
314 #define MASK_MIIR_MII_MDC 0x00000001
315
316 /* ST+OP+PHYAD+REGAD+TA */
317 #define OP_READ 0x6000 /* ST:01+OP:10+PHYAD+REGAD+TA:Z0 */
318 #define OP_WRITE 0x5002 /* ST:01+OP:01+PHYAD+REGAD+TA:10 */
319
320 /* ------------------------------------------------------------------------- */
321 /* Constants for Myson PHY */
322 /* ------------------------------------------------------------------------- */
323 #define MysonPHYID 0xd0000302
324 /* 89-7-27 add, (begin) */
325 #define MysonPHYID0 0x0302
326 #define StatusRegister 18
327 #define SPEED100 0x0400 // bit10
328 #define FULLMODE 0x0800 // bit11
329 /* 89-7-27 add, (end) */
330
331 /* ------------------------------------------------------------------------- */
332 /* Constants for Seeq 80225 PHY */
333 /* ------------------------------------------------------------------------- */
334 #define SeeqPHYID0 0x0016
335
336 #define MIIRegister18 18
337 #define SPD_DET_100 0x80
338 #define DPLX_DET_FULL 0x40
339
340 /* ------------------------------------------------------------------------- */
341 /* Constants for Ahdoc 101 PHY */
342 /* ------------------------------------------------------------------------- */
343 #define AhdocPHYID0 0x0022
344
345 #define DiagnosticReg 18
346 #define DPLX_FULL 0x0800
347 #define Speed_100 0x0400
348
349 /* 89/6/13 add, */
350 /* -------------------------------------------------------------------------- */
351 /* Constants */
352 /* -------------------------------------------------------------------------- */
353 #define MarvellPHYID0 0x0141
354 #define LevelOnePHYID0 0x0013
355
356 #define MII1000BaseTControlReg 9
357 #define MII1000BaseTStatusReg 10
358 #define SpecificReg 17
359
360 /* for 1000BaseT Control Register */
361 #define PHYAbletoPerform1000FullDuplex 0x0200
362 #define PHYAbletoPerform1000HalfDuplex 0x0100
363 #define PHY1000AbilityMask 0x300
364
365 // for phy specific status register, marvell phy.
366 #define SpeedMask 0x0c000
367 #define Speed_1000M 0x08000
368 #define Speed_100M 0x4000
369 #define Speed_10M 0
370 #define Full_Duplex 0x2000
371
372 // 89/12/29 add, for phy specific status register, levelone phy, (begin)
373 #define LXT1000_100M 0x08000
374 #define LXT1000_1000M 0x0c000
375 #define LXT1000_Full 0x200
376 // 89/12/29 add, for phy specific status register, levelone phy, (end)
377
378 /* for 3-in-1 case, BMCRSR register */
379 #define LinkIsUp2 0x00040000
380
381 /* for PHY */
382 #define LinkIsUp 0x0004
383
384
385 struct netdev_private {
386 /* Descriptor rings first for alignment. */
387 struct fealnx_desc *rx_ring;
388 struct fealnx_desc *tx_ring;
389
390 dma_addr_t rx_ring_dma;
391 dma_addr_t tx_ring_dma;
392
393 spinlock_t lock;
394
395 struct net_device_stats stats;
396
397 /* Media monitoring timer. */
398 struct timer_list timer;
399
400 /* Reset timer */
401 struct timer_list reset_timer;
402 int reset_timer_armed;
403 unsigned long crvalue_sv;
404 unsigned long imrvalue_sv;
405
406 /* Frequently used values: keep some adjacent for cache effect. */
407 int flags;
408 struct pci_dev *pci_dev;
409 unsigned long crvalue;
410 unsigned long bcrvalue;
411 unsigned long imrvalue;
412 struct fealnx_desc *cur_rx;
413 struct fealnx_desc *lack_rxbuf;
414 int really_rx_count;
415 struct fealnx_desc *cur_tx;
416 struct fealnx_desc *cur_tx_copy;
417 int really_tx_count;
418 int free_tx_count;
419 unsigned int rx_buf_sz; /* Based on MTU+slack. */
420
421 /* These values are keep track of the transceiver/media in use. */
422 unsigned int linkok;
423 unsigned int line_speed;
424 unsigned int duplexmode;
425 unsigned int default_port:4; /* Last dev->if_port value. */
426 unsigned int PHYType;
427
428 /* MII transceiver section. */
429 int mii_cnt; /* MII device addresses. */
430 unsigned char phys[2]; /* MII device addresses. */
431 struct mii_if_info mii;
432 void __iomem *mem;
433 };
434
435
436 static int mdio_read(struct net_device *dev, int phy_id, int location);
437 static void mdio_write(struct net_device *dev, int phy_id, int location, int value);
438 static int netdev_open(struct net_device *dev);
439 static void getlinktype(struct net_device *dev);
440 static void getlinkstatus(struct net_device *dev);
441 static void netdev_timer(unsigned long data);
442 static void reset_timer(unsigned long data);
443 static void tx_timeout(struct net_device *dev);
444 static void init_ring(struct net_device *dev);
445 static int start_tx(struct sk_buff *skb, struct net_device *dev);
446 static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *regs);
447 static int netdev_rx(struct net_device *dev);
448 static void set_rx_mode(struct net_device *dev);
449 static void __set_rx_mode(struct net_device *dev);
450 static struct net_device_stats *get_stats(struct net_device *dev);
451 static int mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
452 static struct ethtool_ops netdev_ethtool_ops;
453 static int netdev_close(struct net_device *dev);
454 static void reset_rx_descriptors(struct net_device *dev);
455 static void reset_tx_descriptors(struct net_device *dev);
456
457 static void stop_nic_rx(void __iomem *ioaddr, long crvalue)
458 {
459 int delay = 0x1000;
460 iowrite32(crvalue & ~(CR_W_RXEN), ioaddr + TCRRCR);
461 while (--delay) {
462 if ( (ioread32(ioaddr + TCRRCR) & CR_R_RXSTOP) == CR_R_RXSTOP)
463 break;
464 }
465 }
466
467
468 static void stop_nic_rxtx(void __iomem *ioaddr, long crvalue)
469 {
470 int delay = 0x1000;
471 iowrite32(crvalue & ~(CR_W_RXEN+CR_W_TXEN), ioaddr + TCRRCR);
472 while (--delay) {
473 if ( (ioread32(ioaddr + TCRRCR) & (CR_R_RXSTOP+CR_R_TXSTOP))
474 == (CR_R_RXSTOP+CR_R_TXSTOP) )
475 break;
476 }
477 }
478
479
480 static int __devinit fealnx_init_one(struct pci_dev *pdev,
481 const struct pci_device_id *ent)
482 {
483 struct netdev_private *np;
484 int i, option, err, irq;
485 static int card_idx = -1;
486 char boardname[12];
487 void __iomem *ioaddr;
488 unsigned long len;
489 unsigned int chip_id = ent->driver_data;
490 struct net_device *dev;
491 void *ring_space;
492 dma_addr_t ring_dma;
493 #ifdef USE_IO_OPS
494 int bar = 0;
495 #else
496 int bar = 1;
497 #endif
498
499 /* when built into the kernel, we only print version if device is found */
500 #ifndef MODULE
501 static int printed_version;
502 if (!printed_version++)
503 printk(version);
504 #endif
505
506 card_idx++;
507 sprintf(boardname, "fealnx%d", card_idx);
508
509 option = card_idx < MAX_UNITS ? options[card_idx] : 0;
510
511 i = pci_enable_device(pdev);
512 if (i) return i;
513 pci_set_master(pdev);
514
515 len = pci_resource_len(pdev, bar);
516 if (len < MIN_REGION_SIZE) {
517 printk(KERN_ERR "%s: region size %ld too small, aborting\n",
518 boardname, len);
519 return -ENODEV;
520 }
521
522 i = pci_request_regions(pdev, boardname);
523 if (i) return i;
524
525 irq = pdev->irq;
526
527 ioaddr = pci_iomap(pdev, bar, len);
528 if (!ioaddr) {
529 err = -ENOMEM;
530 goto err_out_res;
531 }
532
533 dev = alloc_etherdev(sizeof(struct netdev_private));
534 if (!dev) {
535 err = -ENOMEM;
536 goto err_out_unmap;
537 }
538 SET_MODULE_OWNER(dev);
539 SET_NETDEV_DEV(dev, &pdev->dev);
540
541 /* read ethernet id */
542 for (i = 0; i < 6; ++i)
543 dev->dev_addr[i] = ioread8(ioaddr + PAR0 + i);
544
545 /* Reset the chip to erase previous misconfiguration. */
546 iowrite32(0x00000001, ioaddr + BCR);
547
548 dev->base_addr = (unsigned long)ioaddr;
549 dev->irq = irq;
550
551 /* Make certain the descriptor lists are aligned. */
552 np = netdev_priv(dev);
553 np->mem = ioaddr;
554 spin_lock_init(&np->lock);
555 np->pci_dev = pdev;
556 np->flags = skel_netdrv_tbl[chip_id].flags;
557 pci_set_drvdata(pdev, dev);
558 np->mii.dev = dev;
559 np->mii.mdio_read = mdio_read;
560 np->mii.mdio_write = mdio_write;
561 np->mii.phy_id_mask = 0x1f;
562 np->mii.reg_num_mask = 0x1f;
563
564 ring_space = pci_alloc_consistent(pdev, RX_TOTAL_SIZE, &ring_dma);
565 if (!ring_space) {
566 err = -ENOMEM;
567 goto err_out_free_dev;
568 }
569 np->rx_ring = (struct fealnx_desc *)ring_space;
570 np->rx_ring_dma = ring_dma;
571
572 ring_space = pci_alloc_consistent(pdev, TX_TOTAL_SIZE, &ring_dma);
573 if (!ring_space) {
574 err = -ENOMEM;
575 goto err_out_free_rx;
576 }
577 np->tx_ring = (struct fealnx_desc *)ring_space;
578 np->tx_ring_dma = ring_dma;
579
580 /* find the connected MII xcvrs */
581 if (np->flags == HAS_MII_XCVR) {
582 int phy, phy_idx = 0;
583
584 for (phy = 1; phy < 32 && phy_idx < 4; phy++) {
585 int mii_status = mdio_read(dev, phy, 1);
586
587 if (mii_status != 0xffff && mii_status != 0x0000) {
588 np->phys[phy_idx++] = phy;
589 printk(KERN_INFO
590 "%s: MII PHY found at address %d, status "
591 "0x%4.4x.\n", dev->name, phy, mii_status);
592 /* get phy type */
593 {
594 unsigned int data;
595
596 data = mdio_read(dev, np->phys[0], 2);
597 if (data == SeeqPHYID0)
598 np->PHYType = SeeqPHY;
599 else if (data == AhdocPHYID0)
600 np->PHYType = AhdocPHY;
601 else if (data == MarvellPHYID0)
602 np->PHYType = MarvellPHY;
603 else if (data == MysonPHYID0)
604 np->PHYType = Myson981;
605 else if (data == LevelOnePHYID0)
606 np->PHYType = LevelOnePHY;
607 else
608 np->PHYType = OtherPHY;
609 }
610 }
611 }
612
613 np->mii_cnt = phy_idx;
614 if (phy_idx == 0) {
615 printk(KERN_WARNING "%s: MII PHY not found -- this device may "
616 "not operate correctly.\n", dev->name);
617 }
618 } else {
619 np->phys[0] = 32;
620 /* 89/6/23 add, (begin) */
621 /* get phy type */
622 if (ioread32(ioaddr + PHYIDENTIFIER) == MysonPHYID)
623 np->PHYType = MysonPHY;
624 else
625 np->PHYType = OtherPHY;
626 }
627 np->mii.phy_id = np->phys[0];
628
629 if (dev->mem_start)
630 option = dev->mem_start;
631
632 /* The lower four bits are the media type. */
633 if (option > 0) {
634 if (option & 0x200)
635 np->mii.full_duplex = 1;
636 np->default_port = option & 15;
637 }
638
639 if (card_idx < MAX_UNITS && full_duplex[card_idx] > 0)
640 np->mii.full_duplex = full_duplex[card_idx];
641
642 if (np->mii.full_duplex) {
643 printk(KERN_INFO "%s: Media type forced to Full Duplex.\n", dev->name);
644 /* 89/6/13 add, (begin) */
645 // if (np->PHYType==MarvellPHY)
646 if ((np->PHYType == MarvellPHY) || (np->PHYType == LevelOnePHY)) {
647 unsigned int data;
648
649 data = mdio_read(dev, np->phys[0], 9);
650 data = (data & 0xfcff) | 0x0200;
651 mdio_write(dev, np->phys[0], 9, data);
652 }
653 /* 89/6/13 add, (end) */
654 if (np->flags == HAS_MII_XCVR)
655 mdio_write(dev, np->phys[0], MII_ADVERTISE, ADVERTISE_FULL);
656 else
657 iowrite32(ADVERTISE_FULL, ioaddr + ANARANLPAR);
658 np->mii.force_media = 1;
659 }
660
661 /* The chip-specific entries in the device structure. */
662 dev->open = &netdev_open;
663 dev->hard_start_xmit = &start_tx;
664 dev->stop = &netdev_close;
665 dev->get_stats = &get_stats;
666 dev->set_multicast_list = &set_rx_mode;
667 dev->do_ioctl = &mii_ioctl;
668 dev->ethtool_ops = &netdev_ethtool_ops;
669 dev->tx_timeout = &tx_timeout;
670 dev->watchdog_timeo = TX_TIMEOUT;
671
672 err = register_netdev(dev);
673 if (err)
674 goto err_out_free_tx;
675
676 printk(KERN_INFO "%s: %s at %p, ",
677 dev->name, skel_netdrv_tbl[chip_id].chip_name, ioaddr);
678 for (i = 0; i < 5; i++)
679 printk("%2.2x:", dev->dev_addr[i]);
680 printk("%2.2x, IRQ %d.\n", dev->dev_addr[i], irq);
681
682 return 0;
683
684 err_out_free_tx:
685 pci_free_consistent(pdev, TX_TOTAL_SIZE, np->tx_ring, np->tx_ring_dma);
686 err_out_free_rx:
687 pci_free_consistent(pdev, RX_TOTAL_SIZE, np->rx_ring, np->rx_ring_dma);
688 err_out_free_dev:
689 free_netdev(dev);
690 err_out_unmap:
691 pci_iounmap(pdev, ioaddr);
692 err_out_res:
693 pci_release_regions(pdev);
694 return err;
695 }
696
697
698 static void __devexit fealnx_remove_one(struct pci_dev *pdev)
699 {
700 struct net_device *dev = pci_get_drvdata(pdev);
701
702 if (dev) {
703 struct netdev_private *np = netdev_priv(dev);
704
705 pci_free_consistent(pdev, TX_TOTAL_SIZE, np->tx_ring,
706 np->tx_ring_dma);
707 pci_free_consistent(pdev, RX_TOTAL_SIZE, np->rx_ring,
708 np->rx_ring_dma);
709 unregister_netdev(dev);
710 pci_iounmap(pdev, np->mem);
711 free_netdev(dev);
712 pci_release_regions(pdev);
713 pci_set_drvdata(pdev, NULL);
714 } else
715 printk(KERN_ERR "fealnx: remove for unknown device\n");
716 }
717
718
719 static ulong m80x_send_cmd_to_phy(void __iomem *miiport, int opcode, int phyad, int regad)
720 {
721 ulong miir;
722 int i;
723 unsigned int mask, data;
724
725 /* enable MII output */
726 miir = (ulong) ioread32(miiport);
727 miir &= 0xfffffff0;
728
729 miir |= MASK_MIIR_MII_WRITE + MASK_MIIR_MII_MDO;
730
731 /* send 32 1's preamble */
732 for (i = 0; i < 32; i++) {
733 /* low MDC; MDO is already high (miir) */
734 miir &= ~MASK_MIIR_MII_MDC;
735 iowrite32(miir, miiport);
736
737 /* high MDC */
738 miir |= MASK_MIIR_MII_MDC;
739 iowrite32(miir, miiport);
740 }
741
742 /* calculate ST+OP+PHYAD+REGAD+TA */
743 data = opcode | (phyad << 7) | (regad << 2);
744
745 /* sent out */
746 mask = 0x8000;
747 while (mask) {
748 /* low MDC, prepare MDO */
749 miir &= ~(MASK_MIIR_MII_MDC + MASK_MIIR_MII_MDO);
750 if (mask & data)
751 miir |= MASK_MIIR_MII_MDO;
752
753 iowrite32(miir, miiport);
754 /* high MDC */
755 miir |= MASK_MIIR_MII_MDC;
756 iowrite32(miir, miiport);
757 udelay(30);
758
759 /* next */
760 mask >>= 1;
761 if (mask == 0x2 && opcode == OP_READ)
762 miir &= ~MASK_MIIR_MII_WRITE;
763 }
764 return miir;
765 }
766
767
768 static int mdio_read(struct net_device *dev, int phyad, int regad)
769 {
770 struct netdev_private *np = netdev_priv(dev);
771 void __iomem *miiport = np->mem + MANAGEMENT;
772 ulong miir;
773 unsigned int mask, data;
774
775 miir = m80x_send_cmd_to_phy(miiport, OP_READ, phyad, regad);
776
777 /* read data */
778 mask = 0x8000;
779 data = 0;
780 while (mask) {
781 /* low MDC */
782 miir &= ~MASK_MIIR_MII_MDC;
783 iowrite32(miir, miiport);
784
785 /* read MDI */
786 miir = ioread32(miiport);
787 if (miir & MASK_MIIR_MII_MDI)
788 data |= mask;
789
790 /* high MDC, and wait */
791 miir |= MASK_MIIR_MII_MDC;
792 iowrite32(miir, miiport);
793 udelay(30);
794
795 /* next */
796 mask >>= 1;
797 }
798
799 /* low MDC */
800 miir &= ~MASK_MIIR_MII_MDC;
801 iowrite32(miir, miiport);
802
803 return data & 0xffff;
804 }
805
806
807 static void mdio_write(struct net_device *dev, int phyad, int regad, int data)
808 {
809 struct netdev_private *np = netdev_priv(dev);
810 void __iomem *miiport = np->mem + MANAGEMENT;
811 ulong miir;
812 unsigned int mask;
813
814 miir = m80x_send_cmd_to_phy(miiport, OP_WRITE, phyad, regad);
815
816 /* write data */
817 mask = 0x8000;
818 while (mask) {
819 /* low MDC, prepare MDO */
820 miir &= ~(MASK_MIIR_MII_MDC + MASK_MIIR_MII_MDO);
821 if (mask & data)
822 miir |= MASK_MIIR_MII_MDO;
823 iowrite32(miir, miiport);
824
825 /* high MDC */
826 miir |= MASK_MIIR_MII_MDC;
827 iowrite32(miir, miiport);
828
829 /* next */
830 mask >>= 1;
831 }
832
833 /* low MDC */
834 miir &= ~MASK_MIIR_MII_MDC;
835 iowrite32(miir, miiport);
836 }
837
838
839 static int netdev_open(struct net_device *dev)
840 {
841 struct netdev_private *np = netdev_priv(dev);
842 void __iomem *ioaddr = np->mem;
843 int i;
844
845 iowrite32(0x00000001, ioaddr + BCR); /* Reset */
846
847 if (request_irq(dev->irq, &intr_handler, SA_SHIRQ, dev->name, dev))
848 return -EAGAIN;
849
850 for (i = 0; i < 3; i++)
851 iowrite16(((unsigned short*)dev->dev_addr)[i],
852 ioaddr + PAR0 + i*2);
853
854 init_ring(dev);
855
856 iowrite32(np->rx_ring_dma, ioaddr + RXLBA);
857 iowrite32(np->tx_ring_dma, ioaddr + TXLBA);
858
859 /* Initialize other registers. */
860 /* Configure the PCI bus bursts and FIFO thresholds.
861 486: Set 8 longword burst.
862 586: no burst limit.
863 Burst length 5:3
864 0 0 0 1
865 0 0 1 4
866 0 1 0 8
867 0 1 1 16
868 1 0 0 32
869 1 0 1 64
870 1 1 0 128
871 1 1 1 256
872 Wait the specified 50 PCI cycles after a reset by initializing
873 Tx and Rx queues and the address filter list.
874 FIXME (Ueimor): optimistic for alpha + posted writes ? */
875 #if defined(__powerpc__) || defined(__sparc__)
876 // 89/9/1 modify,
877 // np->bcrvalue=0x04 | 0x0x38; /* big-endian, 256 burst length */
878 np->bcrvalue = 0x04 | 0x10; /* big-endian, tx 8 burst length */
879 np->crvalue = 0xe00; /* rx 128 burst length */
880 #elif defined(__alpha__) || defined(__x86_64__)
881 // 89/9/1 modify,
882 // np->bcrvalue=0x38; /* little-endian, 256 burst length */
883 np->bcrvalue = 0x10; /* little-endian, 8 burst length */
884 np->crvalue = 0xe00; /* rx 128 burst length */
885 #elif defined(__i386__)
886 #if defined(MODULE)
887 // 89/9/1 modify,
888 // np->bcrvalue=0x38; /* little-endian, 256 burst length */
889 np->bcrvalue = 0x10; /* little-endian, 8 burst length */
890 np->crvalue = 0xe00; /* rx 128 burst length */
891 #else
892 /* When not a module we can work around broken '486 PCI boards. */
893 #define x86 boot_cpu_data.x86
894 // 89/9/1 modify,
895 // np->bcrvalue=(x86 <= 4 ? 0x10 : 0x38);
896 np->bcrvalue = 0x10;
897 np->crvalue = (x86 <= 4 ? 0xa00 : 0xe00);
898 if (x86 <= 4)
899 printk(KERN_INFO "%s: This is a 386/486 PCI system, setting burst "
900 "length to %x.\n", dev->name, (x86 <= 4 ? 0x10 : 0x38));
901 #endif
902 #else
903 // 89/9/1 modify,
904 // np->bcrvalue=0x38;
905 np->bcrvalue = 0x10;
906 np->crvalue = 0xe00; /* rx 128 burst length */
907 #warning Processor architecture undefined!
908 #endif
909 // 89/12/29 add,
910 // 90/1/16 modify,
911 // np->imrvalue=FBE|TUNF|CNTOVF|RBU|TI|RI;
912 np->imrvalue = TUNF | CNTOVF | RBU | TI | RI;
913 if (np->pci_dev->device == 0x891) {
914 np->bcrvalue |= 0x200; /* set PROG bit */
915 np->crvalue |= CR_W_ENH; /* set enhanced bit */
916 np->imrvalue |= ETI;
917 }
918 iowrite32(np->bcrvalue, ioaddr + BCR);
919
920 if (dev->if_port == 0)
921 dev->if_port = np->default_port;
922
923 iowrite32(0, ioaddr + RXPDR);
924 // 89/9/1 modify,
925 // np->crvalue = 0x00e40001; /* tx store and forward, tx/rx enable */
926 np->crvalue |= 0x00e40001; /* tx store and forward, tx/rx enable */
927 np->mii.full_duplex = np->mii.force_media;
928 getlinkstatus(dev);
929 if (np->linkok)
930 getlinktype(dev);
931 __set_rx_mode(dev);
932
933 netif_start_queue(dev);
934
935 /* Clear and Enable interrupts by setting the interrupt mask. */
936 iowrite32(FBE | TUNF | CNTOVF | RBU | TI | RI, ioaddr + ISR);
937 iowrite32(np->imrvalue, ioaddr + IMR);
938
939 if (debug)
940 printk(KERN_DEBUG "%s: Done netdev_open().\n", dev->name);
941
942 /* Set the timer to check for link beat. */
943 init_timer(&np->timer);
944 np->timer.expires = RUN_AT(3 * HZ);
945 np->timer.data = (unsigned long) dev;
946 np->timer.function = &netdev_timer;
947
948 /* timer handler */
949 add_timer(&np->timer);
950
951 init_timer(&np->reset_timer);
952 np->reset_timer.data = (unsigned long) dev;
953 np->reset_timer.function = &reset_timer;
954 np->reset_timer_armed = 0;
955
956 return 0;
957 }
958
959
960 static void getlinkstatus(struct net_device *dev)
961 /* function: Routine will read MII Status Register to get link status. */
962 /* input : dev... pointer to the adapter block. */
963 /* output : none. */
964 {
965 struct netdev_private *np = netdev_priv(dev);
966 unsigned int i, DelayTime = 0x1000;
967
968 np->linkok = 0;
969
970 if (np->PHYType == MysonPHY) {
971 for (i = 0; i < DelayTime; ++i) {
972 if (ioread32(np->mem + BMCRSR) & LinkIsUp2) {
973 np->linkok = 1;
974 return;
975 }
976 udelay(100);
977 }
978 } else {
979 for (i = 0; i < DelayTime; ++i) {
980 if (mdio_read(dev, np->phys[0], MII_BMSR) & BMSR_LSTATUS) {
981 np->linkok = 1;
982 return;
983 }
984 udelay(100);
985 }
986 }
987 }
988
989
990 static void getlinktype(struct net_device *dev)
991 {
992 struct netdev_private *np = netdev_priv(dev);
993
994 if (np->PHYType == MysonPHY) { /* 3-in-1 case */
995 if (ioread32(np->mem + TCRRCR) & CR_R_FD)
996 np->duplexmode = 2; /* full duplex */
997 else
998 np->duplexmode = 1; /* half duplex */
999 if (ioread32(np->mem + TCRRCR) & CR_R_PS10)
1000 np->line_speed = 1; /* 10M */
1001 else
1002 np->line_speed = 2; /* 100M */
1003 } else {
1004 if (np->PHYType == SeeqPHY) { /* this PHY is SEEQ 80225 */
1005 unsigned int data;
1006
1007 data = mdio_read(dev, np->phys[0], MIIRegister18);
1008 if (data & SPD_DET_100)
1009 np->line_speed = 2; /* 100M */
1010 else
1011 np->line_speed = 1; /* 10M */
1012 if (data & DPLX_DET_FULL)
1013 np->duplexmode = 2; /* full duplex mode */
1014 else
1015 np->duplexmode = 1; /* half duplex mode */
1016 } else if (np->PHYType == AhdocPHY) {
1017 unsigned int data;
1018
1019 data = mdio_read(dev, np->phys[0], DiagnosticReg);
1020 if (data & Speed_100)
1021 np->line_speed = 2; /* 100M */
1022 else
1023 np->line_speed = 1; /* 10M */
1024 if (data & DPLX_FULL)
1025 np->duplexmode = 2; /* full duplex mode */
1026 else
1027 np->duplexmode = 1; /* half duplex mode */
1028 }
1029 /* 89/6/13 add, (begin) */
1030 else if (np->PHYType == MarvellPHY) {
1031 unsigned int data;
1032
1033 data = mdio_read(dev, np->phys[0], SpecificReg);
1034 if (data & Full_Duplex)
1035 np->duplexmode = 2; /* full duplex mode */
1036 else
1037 np->duplexmode = 1; /* half duplex mode */
1038 data &= SpeedMask;
1039 if (data == Speed_1000M)
1040 np->line_speed = 3; /* 1000M */
1041 else if (data == Speed_100M)
1042 np->line_speed = 2; /* 100M */
1043 else
1044 np->line_speed = 1; /* 10M */
1045 }
1046 /* 89/6/13 add, (end) */
1047 /* 89/7/27 add, (begin) */
1048 else if (np->PHYType == Myson981) {
1049 unsigned int data;
1050
1051 data = mdio_read(dev, np->phys[0], StatusRegister);
1052
1053 if (data & SPEED100)
1054 np->line_speed = 2;
1055 else
1056 np->line_speed = 1;
1057
1058 if (data & FULLMODE)
1059 np->duplexmode = 2;
1060 else
1061 np->duplexmode = 1;
1062 }
1063 /* 89/7/27 add, (end) */
1064 /* 89/12/29 add */
1065 else if (np->PHYType == LevelOnePHY) {
1066 unsigned int data;
1067
1068 data = mdio_read(dev, np->phys[0], SpecificReg);
1069 if (data & LXT1000_Full)
1070 np->duplexmode = 2; /* full duplex mode */
1071 else
1072 np->duplexmode = 1; /* half duplex mode */
1073 data &= SpeedMask;
1074 if (data == LXT1000_1000M)
1075 np->line_speed = 3; /* 1000M */
1076 else if (data == LXT1000_100M)
1077 np->line_speed = 2; /* 100M */
1078 else
1079 np->line_speed = 1; /* 10M */
1080 }
1081 np->crvalue &= (~CR_W_PS10) & (~CR_W_FD) & (~CR_W_PS1000);
1082 if (np->line_speed == 1)
1083 np->crvalue |= CR_W_PS10;
1084 else if (np->line_speed == 3)
1085 np->crvalue |= CR_W_PS1000;
1086 if (np->duplexmode == 2)
1087 np->crvalue |= CR_W_FD;
1088 }
1089 }
1090
1091
1092 /* Take lock before calling this */
1093 static void allocate_rx_buffers(struct net_device *dev)
1094 {
1095 struct netdev_private *np = netdev_priv(dev);
1096
1097 /* allocate skb for rx buffers */
1098 while (np->really_rx_count != RX_RING_SIZE) {
1099 struct sk_buff *skb;
1100
1101 skb = dev_alloc_skb(np->rx_buf_sz);
1102 if (skb == NULL)
1103 break; /* Better luck next round. */
1104
1105 while (np->lack_rxbuf->skbuff)
1106 np->lack_rxbuf = np->lack_rxbuf->next_desc_logical;
1107
1108 skb->dev = dev; /* Mark as being used by this device. */
1109 np->lack_rxbuf->skbuff = skb;
1110 np->lack_rxbuf->buffer = pci_map_single(np->pci_dev, skb->tail,
1111 np->rx_buf_sz, PCI_DMA_FROMDEVICE);
1112 np->lack_rxbuf->status = RXOWN;
1113 ++np->really_rx_count;
1114 }
1115 }
1116
1117
1118 static void netdev_timer(unsigned long data)
1119 {
1120 struct net_device *dev = (struct net_device *) data;
1121 struct netdev_private *np = netdev_priv(dev);
1122 void __iomem *ioaddr = np->mem;
1123 int old_crvalue = np->crvalue;
1124 unsigned int old_linkok = np->linkok;
1125 unsigned long flags;
1126
1127 if (debug)
1128 printk(KERN_DEBUG "%s: Media selection timer tick, status %8.8x "
1129 "config %8.8x.\n", dev->name, ioread32(ioaddr + ISR),
1130 ioread32(ioaddr + TCRRCR));
1131
1132 spin_lock_irqsave(&np->lock, flags);
1133
1134 if (np->flags == HAS_MII_XCVR) {
1135 getlinkstatus(dev);
1136 if ((old_linkok == 0) && (np->linkok == 1)) { /* we need to detect the media type again */
1137 getlinktype(dev);
1138 if (np->crvalue != old_crvalue) {
1139 stop_nic_rxtx(ioaddr, np->crvalue);
1140 iowrite32(np->crvalue, ioaddr + TCRRCR);
1141 }
1142 }
1143 }
1144
1145 allocate_rx_buffers(dev);
1146
1147 spin_unlock_irqrestore(&np->lock, flags);
1148
1149 np->timer.expires = RUN_AT(10 * HZ);
1150 add_timer(&np->timer);
1151 }
1152
1153
1154 /* Take lock before calling */
1155 /* Reset chip and disable rx, tx and interrupts */
1156 static void reset_and_disable_rxtx(struct net_device *dev)
1157 {
1158 struct netdev_private *np = netdev_priv(dev);
1159 void __iomem *ioaddr = np->mem;
1160 int delay=51;
1161
1162 /* Reset the chip's Tx and Rx processes. */
1163 stop_nic_rxtx(ioaddr, 0);
1164
1165 /* Disable interrupts by clearing the interrupt mask. */
1166 iowrite32(0, ioaddr + IMR);
1167
1168 /* Reset the chip to erase previous misconfiguration. */
1169 iowrite32(0x00000001, ioaddr + BCR);
1170
1171 /* Ueimor: wait for 50 PCI cycles (and flush posted writes btw).
1172 We surely wait too long (address+data phase). Who cares? */
1173 while (--delay) {
1174 ioread32(ioaddr + BCR);
1175 rmb();
1176 }
1177 }
1178
1179
1180 /* Take lock before calling */
1181 /* Restore chip after reset */
1182 static void enable_rxtx(struct net_device *dev)
1183 {
1184 struct netdev_private *np = netdev_priv(dev);
1185 void __iomem *ioaddr = np->mem;
1186
1187 reset_rx_descriptors(dev);
1188
1189 iowrite32(np->tx_ring_dma + ((char*)np->cur_tx - (char*)np->tx_ring),
1190 ioaddr + TXLBA);
1191 iowrite32(np->rx_ring_dma + ((char*)np->cur_rx - (char*)np->rx_ring),
1192 ioaddr + RXLBA);
1193
1194 iowrite32(np->bcrvalue, ioaddr + BCR);
1195
1196 iowrite32(0, ioaddr + RXPDR);
1197 __set_rx_mode(dev); /* changes np->crvalue, writes it into TCRRCR */
1198
1199 /* Clear and Enable interrupts by setting the interrupt mask. */
1200 iowrite32(FBE | TUNF | CNTOVF | RBU | TI | RI, ioaddr + ISR);
1201 iowrite32(np->imrvalue, ioaddr + IMR);
1202
1203 iowrite32(0, ioaddr + TXPDR);
1204 }
1205
1206
1207 static void reset_timer(unsigned long data)
1208 {
1209 struct net_device *dev = (struct net_device *) data;
1210 struct netdev_private *np = netdev_priv(dev);
1211 unsigned long flags;
1212
1213 printk(KERN_WARNING "%s: resetting tx and rx machinery\n", dev->name);
1214
1215 spin_lock_irqsave(&np->lock, flags);
1216 np->crvalue = np->crvalue_sv;
1217 np->imrvalue = np->imrvalue_sv;
1218
1219 reset_and_disable_rxtx(dev);
1220 /* works for me without this:
1221 reset_tx_descriptors(dev); */
1222 enable_rxtx(dev);
1223 netif_start_queue(dev); /* FIXME: or netif_wake_queue(dev); ? */
1224
1225 np->reset_timer_armed = 0;
1226
1227 spin_unlock_irqrestore(&np->lock, flags);
1228 }
1229
1230
1231 static void tx_timeout(struct net_device *dev)
1232 {
1233 struct netdev_private *np = netdev_priv(dev);
1234 void __iomem *ioaddr = np->mem;
1235 unsigned long flags;
1236 int i;
1237
1238 printk(KERN_WARNING "%s: Transmit timed out, status %8.8x,"
1239 " resetting...\n", dev->name, ioread32(ioaddr + ISR));
1240
1241 {
1242 printk(KERN_DEBUG " Rx ring %p: ", np->rx_ring);
1243 for (i = 0; i < RX_RING_SIZE; i++)
1244 printk(" %8.8x", (unsigned int) np->rx_ring[i].status);
1245 printk("\n" KERN_DEBUG " Tx ring %p: ", np->tx_ring);
1246 for (i = 0; i < TX_RING_SIZE; i++)
1247 printk(" %4.4x", np->tx_ring[i].status);
1248 printk("\n");
1249 }
1250
1251 spin_lock_irqsave(&np->lock, flags);
1252
1253 reset_and_disable_rxtx(dev);
1254 reset_tx_descriptors(dev);
1255 enable_rxtx(dev);
1256
1257 spin_unlock_irqrestore(&np->lock, flags);
1258
1259 dev->trans_start = jiffies;
1260 np->stats.tx_errors++;
1261 netif_wake_queue(dev); /* or .._start_.. ?? */
1262 }
1263
1264
1265 /* Initialize the Rx and Tx rings, along with various 'dev' bits. */
1266 static void init_ring(struct net_device *dev)
1267 {
1268 struct netdev_private *np = netdev_priv(dev);
1269 int i;
1270
1271 /* initialize rx variables */
1272 np->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);
1273 np->cur_rx = &np->rx_ring[0];
1274 np->lack_rxbuf = np->rx_ring;
1275 np->really_rx_count = 0;
1276
1277 /* initial rx descriptors. */
1278 for (i = 0; i < RX_RING_SIZE; i++) {
1279 np->rx_ring[i].status = 0;
1280 np->rx_ring[i].control = np->rx_buf_sz << RBSShift;
1281 np->rx_ring[i].next_desc = np->rx_ring_dma +
1282 (i + 1)*sizeof(struct fealnx_desc);
1283 np->rx_ring[i].next_desc_logical = &np->rx_ring[i + 1];
1284 np->rx_ring[i].skbuff = NULL;
1285 }
1286
1287 /* for the last rx descriptor */
1288 np->rx_ring[i - 1].next_desc = np->rx_ring_dma;
1289 np->rx_ring[i - 1].next_desc_logical = np->rx_ring;
1290
1291 /* allocate skb for rx buffers */
1292 for (i = 0; i < RX_RING_SIZE; i++) {
1293 struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz);
1294
1295 if (skb == NULL) {
1296 np->lack_rxbuf = &np->rx_ring[i];
1297 break;
1298 }
1299
1300 ++np->really_rx_count;
1301 np->rx_ring[i].skbuff = skb;
1302 skb->dev = dev; /* Mark as being used by this device. */
1303 np->rx_ring[i].buffer = pci_map_single(np->pci_dev, skb->tail,
1304 np->rx_buf_sz, PCI_DMA_FROMDEVICE);
1305 np->rx_ring[i].status = RXOWN;
1306 np->rx_ring[i].control |= RXIC;
1307 }
1308
1309 /* initialize tx variables */
1310 np->cur_tx = &np->tx_ring[0];
1311 np->cur_tx_copy = &np->tx_ring[0];
1312 np->really_tx_count = 0;
1313 np->free_tx_count = TX_RING_SIZE;
1314
1315 for (i = 0; i < TX_RING_SIZE; i++) {
1316 np->tx_ring[i].status = 0;
1317 /* do we need np->tx_ring[i].control = XXX; ?? */
1318 np->tx_ring[i].next_desc = np->tx_ring_dma +
1319 (i + 1)*sizeof(struct fealnx_desc);
1320 np->tx_ring[i].next_desc_logical = &np->tx_ring[i + 1];
1321 np->tx_ring[i].skbuff = NULL;
1322 }
1323
1324 /* for the last tx descriptor */
1325 np->tx_ring[i - 1].next_desc = np->tx_ring_dma;
1326 np->tx_ring[i - 1].next_desc_logical = &np->tx_ring[0];
1327 }
1328
1329
1330 static int start_tx(struct sk_buff *skb, struct net_device *dev)
1331 {
1332 struct netdev_private *np = netdev_priv(dev);
1333 unsigned long flags;
1334
1335 spin_lock_irqsave(&np->lock, flags);
1336
1337 np->cur_tx_copy->skbuff = skb;
1338
1339 #define one_buffer
1340 #define BPT 1022
1341 #if defined(one_buffer)
1342 np->cur_tx_copy->buffer = pci_map_single(np->pci_dev, skb->data,
1343 skb->len, PCI_DMA_TODEVICE);
1344 np->cur_tx_copy->control = TXIC | TXLD | TXFD | CRCEnable | PADEnable;
1345 np->cur_tx_copy->control |= (skb->len << PKTSShift); /* pkt size */
1346 np->cur_tx_copy->control |= (skb->len << TBSShift); /* buffer size */
1347 // 89/12/29 add,
1348 if (np->pci_dev->device == 0x891)
1349 np->cur_tx_copy->control |= ETIControl | RetryTxLC;
1350 np->cur_tx_copy->status = TXOWN;
1351 np->cur_tx_copy = np->cur_tx_copy->next_desc_logical;
1352 --np->free_tx_count;
1353 #elif defined(two_buffer)
1354 if (skb->len > BPT) {
1355 struct fealnx_desc *next;
1356
1357 /* for the first descriptor */
1358 np->cur_tx_copy->buffer = pci_map_single(np->pci_dev, skb->data,
1359 BPT, PCI_DMA_TODEVICE);
1360 np->cur_tx_copy->control = TXIC | TXFD | CRCEnable | PADEnable;
1361 np->cur_tx_copy->control |= (skb->len << PKTSShift); /* pkt size */
1362 np->cur_tx_copy->control |= (BPT << TBSShift); /* buffer size */
1363
1364 /* for the last descriptor */
1365 next = np->cur_tx_copy->next_desc_logical;
1366 next->skbuff = skb;
1367 next->control = TXIC | TXLD | CRCEnable | PADEnable;
1368 next->control |= (skb->len << PKTSShift); /* pkt size */
1369 next->control |= ((skb->len - BPT) << TBSShift); /* buf size */
1370 // 89/12/29 add,
1371 if (np->pci_dev->device == 0x891)
1372 np->cur_tx_copy->control |= ETIControl | RetryTxLC;
1373 next->buffer = pci_map_single(ep->pci_dev, skb->data + BPT,
1374 skb->len - BPT, PCI_DMA_TODEVICE);
1375
1376 next->status = TXOWN;
1377 np->cur_tx_copy->status = TXOWN;
1378
1379 np->cur_tx_copy = next->next_desc_logical;
1380 np->free_tx_count -= 2;
1381 } else {
1382 np->cur_tx_copy->buffer = pci_map_single(np->pci_dev, skb->data,
1383 skb->len, PCI_DMA_TODEVICE);
1384 np->cur_tx_copy->control = TXIC | TXLD | TXFD | CRCEnable | PADEnable;
1385 np->cur_tx_copy->control |= (skb->len << PKTSShift); /* pkt size */
1386 np->cur_tx_copy->control |= (skb->len << TBSShift); /* buffer size */
1387 // 89/12/29 add,
1388 if (np->pci_dev->device == 0x891)
1389 np->cur_tx_copy->control |= ETIControl | RetryTxLC;
1390 np->cur_tx_copy->status = TXOWN;
1391 np->cur_tx_copy = np->cur_tx_copy->next_desc_logical;
1392 --np->free_tx_count;
1393 }
1394 #endif
1395
1396 if (np->free_tx_count < 2)
1397 netif_stop_queue(dev);
1398 ++np->really_tx_count;
1399 iowrite32(0, np->mem + TXPDR);
1400 dev->trans_start = jiffies;
1401
1402 spin_unlock_irqrestore(&np->lock, flags);
1403 return 0;
1404 }
1405
1406
1407 /* Take lock before calling */
1408 /* Chip probably hosed tx ring. Clean up. */
1409 static void reset_tx_descriptors(struct net_device *dev)
1410 {
1411 struct netdev_private *np = netdev_priv(dev);
1412 struct fealnx_desc *cur;
1413 int i;
1414
1415 /* initialize tx variables */
1416 np->cur_tx = &np->tx_ring[0];
1417 np->cur_tx_copy = &np->tx_ring[0];
1418 np->really_tx_count = 0;
1419 np->free_tx_count = TX_RING_SIZE;
1420
1421 for (i = 0; i < TX_RING_SIZE; i++) {
1422 cur = &np->tx_ring[i];
1423 if (cur->skbuff) {
1424 pci_unmap_single(np->pci_dev, cur->buffer,
1425 cur->skbuff->len, PCI_DMA_TODEVICE);
1426 dev_kfree_skb(cur->skbuff);
1427 /* or dev_kfree_skb_irq(cur->skbuff); ? */
1428 cur->skbuff = NULL;
1429 }
1430 cur->status = 0;
1431 cur->control = 0; /* needed? */
1432 /* probably not needed. We do it for purely paranoid reasons */
1433 cur->next_desc = np->tx_ring_dma +
1434 (i + 1)*sizeof(struct fealnx_desc);
1435 cur->next_desc_logical = &np->tx_ring[i + 1];
1436 }
1437 /* for the last tx descriptor */
1438 np->tx_ring[TX_RING_SIZE - 1].next_desc = np->tx_ring_dma;
1439 np->tx_ring[TX_RING_SIZE - 1].next_desc_logical = &np->tx_ring[0];
1440 }
1441
1442
1443 /* Take lock and stop rx before calling this */
1444 static void reset_rx_descriptors(struct net_device *dev)
1445 {
1446 struct netdev_private *np = netdev_priv(dev);
1447 struct fealnx_desc *cur = np->cur_rx;
1448 int i;
1449
1450 allocate_rx_buffers(dev);
1451
1452 for (i = 0; i < RX_RING_SIZE; i++) {
1453 if (cur->skbuff)
1454 cur->status = RXOWN;
1455 cur = cur->next_desc_logical;
1456 }
1457
1458 iowrite32(np->rx_ring_dma + ((char*)np->cur_rx - (char*)np->rx_ring),
1459 np->mem + RXLBA);
1460 }
1461
1462
1463 /* The interrupt handler does all of the Rx thread work and cleans up
1464 after the Tx thread. */
1465 static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *rgs)
1466 {
1467 struct net_device *dev = (struct net_device *) dev_instance;
1468 struct netdev_private *np = netdev_priv(dev);
1469 void __iomem *ioaddr = np->mem;
1470 long boguscnt = max_interrupt_work;
1471 unsigned int num_tx = 0;
1472 int handled = 0;
1473
1474 spin_lock(&np->lock);
1475
1476 iowrite32(0, ioaddr + IMR);
1477
1478 do {
1479 u32 intr_status = ioread32(ioaddr + ISR);
1480
1481 /* Acknowledge all of the current interrupt sources ASAP. */
1482 iowrite32(intr_status, ioaddr + ISR);
1483
1484 if (debug)
1485 printk(KERN_DEBUG "%s: Interrupt, status %4.4x.\n", dev->name,
1486 intr_status);
1487
1488 if (!(intr_status & np->imrvalue))
1489 break;
1490
1491 handled = 1;
1492
1493 // 90/1/16 delete,
1494 //
1495 // if (intr_status & FBE)
1496 // { /* fatal error */
1497 // stop_nic_tx(ioaddr, 0);
1498 // stop_nic_rx(ioaddr, 0);
1499 // break;
1500 // };
1501
1502 if (intr_status & TUNF)
1503 iowrite32(0, ioaddr + TXPDR);
1504
1505 if (intr_status & CNTOVF) {
1506 /* missed pkts */
1507 np->stats.rx_missed_errors += ioread32(ioaddr + TALLY) & 0x7fff;
1508
1509 /* crc error */
1510 np->stats.rx_crc_errors +=
1511 (ioread32(ioaddr + TALLY) & 0x7fff0000) >> 16;
1512 }
1513
1514 if (intr_status & (RI | RBU)) {
1515 if (intr_status & RI)
1516 netdev_rx(dev);
1517 else {
1518 stop_nic_rx(ioaddr, np->crvalue);
1519 reset_rx_descriptors(dev);
1520 iowrite32(np->crvalue, ioaddr + TCRRCR);
1521 }
1522 }
1523
1524 while (np->really_tx_count) {
1525 long tx_status = np->cur_tx->status;
1526 long tx_control = np->cur_tx->control;
1527
1528 if (!(tx_control & TXLD)) { /* this pkt is combined by two tx descriptors */
1529 struct fealnx_desc *next;
1530
1531 next = np->cur_tx->next_desc_logical;
1532 tx_status = next->status;
1533 tx_control = next->control;
1534 }
1535
1536 if (tx_status & TXOWN)
1537 break;
1538
1539 if (!(np->crvalue & CR_W_ENH)) {
1540 if (tx_status & (CSL | LC | EC | UDF | HF)) {
1541 np->stats.tx_errors++;
1542 if (tx_status & EC)
1543 np->stats.tx_aborted_errors++;
1544 if (tx_status & CSL)
1545 np->stats.tx_carrier_errors++;
1546 if (tx_status & LC)
1547 np->stats.tx_window_errors++;
1548 if (tx_status & UDF)
1549 np->stats.tx_fifo_errors++;
1550 if ((tx_status & HF) && np->mii.full_duplex == 0)
1551 np->stats.tx_heartbeat_errors++;
1552
1553 } else {
1554 np->stats.tx_bytes +=
1555 ((tx_control & PKTSMask) >> PKTSShift);
1556
1557 np->stats.collisions +=
1558 ((tx_status & NCRMask) >> NCRShift);
1559 np->stats.tx_packets++;
1560 }
1561 } else {
1562 np->stats.tx_bytes +=
1563 ((tx_control & PKTSMask) >> PKTSShift);
1564 np->stats.tx_packets++;
1565 }
1566
1567 /* Free the original skb. */
1568 pci_unmap_single(np->pci_dev, np->cur_tx->buffer,
1569 np->cur_tx->skbuff->len, PCI_DMA_TODEVICE);
1570 dev_kfree_skb_irq(np->cur_tx->skbuff);
1571 np->cur_tx->skbuff = NULL;
1572 --np->really_tx_count;
1573 if (np->cur_tx->control & TXLD) {
1574 np->cur_tx = np->cur_tx->next_desc_logical;
1575 ++np->free_tx_count;
1576 } else {
1577 np->cur_tx = np->cur_tx->next_desc_logical;
1578 np->cur_tx = np->cur_tx->next_desc_logical;
1579 np->free_tx_count += 2;
1580 }
1581 num_tx++;
1582 } /* end of for loop */
1583
1584 if (num_tx && np->free_tx_count >= 2)
1585 netif_wake_queue(dev);
1586
1587 /* read transmit status for enhanced mode only */
1588 if (np->crvalue & CR_W_ENH) {
1589 long data;
1590
1591 data = ioread32(ioaddr + TSR);
1592 np->stats.tx_errors += (data & 0xff000000) >> 24;
1593 np->stats.tx_aborted_errors += (data & 0xff000000) >> 24;
1594 np->stats.tx_window_errors += (data & 0x00ff0000) >> 16;
1595 np->stats.collisions += (data & 0x0000ffff);
1596 }
1597
1598 if (--boguscnt < 0) {
1599 printk(KERN_WARNING "%s: Too much work at interrupt, "
1600 "status=0x%4.4x.\n", dev->name, intr_status);
1601 if (!np->reset_timer_armed) {
1602 np->reset_timer_armed = 1;
1603 np->reset_timer.expires = RUN_AT(HZ/2);
1604 add_timer(&np->reset_timer);
1605 stop_nic_rxtx(ioaddr, 0);
1606 netif_stop_queue(dev);
1607 /* or netif_tx_disable(dev); ?? */
1608 /* Prevent other paths from enabling tx,rx,intrs */
1609 np->crvalue_sv = np->crvalue;
1610 np->imrvalue_sv = np->imrvalue;
1611 np->crvalue &= ~(CR_W_TXEN | CR_W_RXEN); /* or simply = 0? */
1612 np->imrvalue = 0;
1613 }
1614
1615 break;
1616 }
1617 } while (1);
1618
1619 /* read the tally counters */
1620 /* missed pkts */
1621 np->stats.rx_missed_errors += ioread32(ioaddr + TALLY) & 0x7fff;
1622
1623 /* crc error */
1624 np->stats.rx_crc_errors += (ioread32(ioaddr + TALLY) & 0x7fff0000) >> 16;
1625
1626 if (debug)
1627 printk(KERN_DEBUG "%s: exiting interrupt, status=%#4.4x.\n",
1628 dev->name, ioread32(ioaddr + ISR));
1629
1630 iowrite32(np->imrvalue, ioaddr + IMR);
1631
1632 spin_unlock(&np->lock);
1633
1634 return IRQ_RETVAL(handled);
1635 }
1636
1637
1638 /* This routine is logically part of the interrupt handler, but separated
1639 for clarity and better register allocation. */
1640 static int netdev_rx(struct net_device *dev)
1641 {
1642 struct netdev_private *np = netdev_priv(dev);
1643 void __iomem *ioaddr = np->mem;
1644
1645 /* If EOP is set on the next entry, it's a new packet. Send it up. */
1646 while (!(np->cur_rx->status & RXOWN) && np->cur_rx->skbuff) {
1647 s32 rx_status = np->cur_rx->status;
1648
1649 if (np->really_rx_count == 0)
1650 break;
1651
1652 if (debug)
1653 printk(KERN_DEBUG " netdev_rx() status was %8.8x.\n", rx_status);
1654
1655 if ((!((rx_status & RXFSD) && (rx_status & RXLSD)))
1656 || (rx_status & ErrorSummary)) {
1657 if (rx_status & ErrorSummary) { /* there was a fatal error */
1658 if (debug)
1659 printk(KERN_DEBUG
1660 "%s: Receive error, Rx status %8.8x.\n",
1661 dev->name, rx_status);
1662
1663 np->stats.rx_errors++; /* end of a packet. */
1664 if (rx_status & (LONG | RUNT))
1665 np->stats.rx_length_errors++;
1666 if (rx_status & RXER)
1667 np->stats.rx_frame_errors++;
1668 if (rx_status & CRC)
1669 np->stats.rx_crc_errors++;
1670 } else {
1671 int need_to_reset = 0;
1672 int desno = 0;
1673
1674 if (rx_status & RXFSD) { /* this pkt is too long, over one rx buffer */
1675 struct fealnx_desc *cur;
1676
1677 /* check this packet is received completely? */
1678 cur = np->cur_rx;
1679 while (desno <= np->really_rx_count) {
1680 ++desno;
1681 if ((!(cur->status & RXOWN))
1682 && (cur->status & RXLSD))
1683 break;
1684 /* goto next rx descriptor */
1685 cur = cur->next_desc_logical;
1686 }
1687 if (desno > np->really_rx_count)
1688 need_to_reset = 1;
1689 } else /* RXLSD did not find, something error */
1690 need_to_reset = 1;
1691
1692 if (need_to_reset == 0) {
1693 int i;
1694
1695 np->stats.rx_length_errors++;
1696
1697 /* free all rx descriptors related this long pkt */
1698 for (i = 0; i < desno; ++i) {
1699 if (!np->cur_rx->skbuff) {
1700 printk(KERN_DEBUG
1701 "%s: I'm scared\n", dev->name);
1702 break;
1703 }
1704 np->cur_rx->status = RXOWN;
1705 np->cur_rx = np->cur_rx->next_desc_logical;
1706 }
1707 continue;
1708 } else { /* rx error, need to reset this chip */
1709 stop_nic_rx(ioaddr, np->crvalue);
1710 reset_rx_descriptors(dev);
1711 iowrite32(np->crvalue, ioaddr + TCRRCR);
1712 }
1713 break; /* exit the while loop */
1714 }
1715 } else { /* this received pkt is ok */
1716
1717 struct sk_buff *skb;
1718 /* Omit the four octet CRC from the length. */
1719 short pkt_len = ((rx_status & FLNGMASK) >> FLNGShift) - 4;
1720
1721 #ifndef final_version
1722 if (debug)
1723 printk(KERN_DEBUG " netdev_rx() normal Rx pkt length %d"
1724 " status %x.\n", pkt_len, rx_status);
1725 #endif
1726
1727 /* Check if the packet is long enough to accept without copying
1728 to a minimally-sized skbuff. */
1729 if (pkt_len < rx_copybreak &&
1730 (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
1731 skb->dev = dev;
1732 skb_reserve(skb, 2); /* 16 byte align the IP header */
1733 pci_dma_sync_single_for_cpu(np->pci_dev,
1734 np->cur_rx->buffer,
1735 np->rx_buf_sz,
1736 PCI_DMA_FROMDEVICE);
1737 /* Call copy + cksum if available. */
1738
1739 #if ! defined(__alpha__)
1740 eth_copy_and_sum(skb,
1741 np->cur_rx->skbuff->tail, pkt_len, 0);
1742 skb_put(skb, pkt_len);
1743 #else
1744 memcpy(skb_put(skb, pkt_len),
1745 np->cur_rx->skbuff->tail, pkt_len);
1746 #endif
1747 pci_dma_sync_single_for_device(np->pci_dev,
1748 np->cur_rx->buffer,
1749 np->rx_buf_sz,
1750 PCI_DMA_FROMDEVICE);
1751 } else {
1752 pci_unmap_single(np->pci_dev,
1753 np->cur_rx->buffer,
1754 np->rx_buf_sz,
1755 PCI_DMA_FROMDEVICE);
1756 skb_put(skb = np->cur_rx->skbuff, pkt_len);
1757 np->cur_rx->skbuff = NULL;
1758 --np->really_rx_count;
1759 }
1760 skb->protocol = eth_type_trans(skb, dev);
1761 netif_rx(skb);
1762 dev->last_rx = jiffies;
1763 np->stats.rx_packets++;
1764 np->stats.rx_bytes += pkt_len;
1765 }
1766
1767 np->cur_rx = np->cur_rx->next_desc_logical;
1768 } /* end of while loop */
1769
1770 /* allocate skb for rx buffers */
1771 allocate_rx_buffers(dev);
1772
1773 return 0;
1774 }
1775
1776
1777 static struct net_device_stats *get_stats(struct net_device *dev)
1778 {
1779 struct netdev_private *np = netdev_priv(dev);
1780 void __iomem *ioaddr = np->mem;
1781
1782 /* The chip only need report frame silently dropped. */
1783 if (netif_running(dev)) {
1784 np->stats.rx_missed_errors += ioread32(ioaddr + TALLY) & 0x7fff;
1785 np->stats.rx_crc_errors += (ioread32(ioaddr + TALLY) & 0x7fff0000) >> 16;
1786 }
1787
1788 return &np->stats;
1789 }
1790
1791
1792 /* for dev->set_multicast_list */
1793 static void set_rx_mode(struct net_device *dev)
1794 {
1795 spinlock_t *lp = &((struct netdev_private *)netdev_priv(dev))->lock;
1796 unsigned long flags;
1797 spin_lock_irqsave(lp, flags);
1798 __set_rx_mode(dev);
1799 spin_unlock_irqrestore(lp, flags);
1800 }
1801
1802
1803 /* Take lock before calling */
1804 static void __set_rx_mode(struct net_device *dev)
1805 {
1806 struct netdev_private *np = netdev_priv(dev);
1807 void __iomem *ioaddr = np->mem;
1808 u32 mc_filter[2]; /* Multicast hash filter */
1809 u32 rx_mode;
1810
1811 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
1812 /* Unconditionally log net taps. */
1813 printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
1814 memset(mc_filter, 0xff, sizeof(mc_filter));
1815 rx_mode = CR_W_PROM | CR_W_AB | CR_W_AM;
1816 } else if ((dev->mc_count > multicast_filter_limit)
1817 || (dev->flags & IFF_ALLMULTI)) {
1818 /* Too many to match, or accept all multicasts. */
1819 memset(mc_filter, 0xff, sizeof(mc_filter));
1820 rx_mode = CR_W_AB | CR_W_AM;
1821 } else {
1822 struct dev_mc_list *mclist;
1823 int i;
1824
1825 memset(mc_filter, 0, sizeof(mc_filter));
1826 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
1827 i++, mclist = mclist->next) {
1828 unsigned int bit;
1829 bit = (ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26) ^ 0x3F;
1830 mc_filter[bit >> 5] |= (1 << bit);
1831 }
1832 rx_mode = CR_W_AB | CR_W_AM;
1833 }
1834
1835 stop_nic_rxtx(ioaddr, np->crvalue);
1836
1837 iowrite32(mc_filter[0], ioaddr + MAR0);
1838 iowrite32(mc_filter[1], ioaddr + MAR1);
1839 np->crvalue &= ~CR_W_RXMODEMASK;
1840 np->crvalue |= rx_mode;
1841 iowrite32(np->crvalue, ioaddr + TCRRCR);
1842 }
1843
1844 static void netdev_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1845 {
1846 struct netdev_private *np = netdev_priv(dev);
1847
1848 strcpy(info->driver, DRV_NAME);
1849 strcpy(info->version, DRV_VERSION);
1850 strcpy(info->bus_info, pci_name(np->pci_dev));
1851 }
1852
1853 static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1854 {
1855 struct netdev_private *np = netdev_priv(dev);
1856 int rc;
1857
1858 spin_lock_irq(&np->lock);
1859 rc = mii_ethtool_gset(&np->mii, cmd);
1860 spin_unlock_irq(&np->lock);
1861
1862 return rc;
1863 }
1864
1865 static int netdev_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1866 {
1867 struct netdev_private *np = netdev_priv(dev);
1868 int rc;
1869
1870 spin_lock_irq(&np->lock);
1871 rc = mii_ethtool_sset(&np->mii, cmd);
1872 spin_unlock_irq(&np->lock);
1873
1874 return rc;
1875 }
1876
1877 static int netdev_nway_reset(struct net_device *dev)
1878 {
1879 struct netdev_private *np = netdev_priv(dev);
1880 return mii_nway_restart(&np->mii);
1881 }
1882
1883 static u32 netdev_get_link(struct net_device *dev)
1884 {
1885 struct netdev_private *np = netdev_priv(dev);
1886 return mii_link_ok(&np->mii);
1887 }
1888
1889 static u32 netdev_get_msglevel(struct net_device *dev)
1890 {
1891 return debug;
1892 }
1893
1894 static void netdev_set_msglevel(struct net_device *dev, u32 value)
1895 {
1896 debug = value;
1897 }
1898
1899 static struct ethtool_ops netdev_ethtool_ops = {
1900 .get_drvinfo = netdev_get_drvinfo,
1901 .get_settings = netdev_get_settings,
1902 .set_settings = netdev_set_settings,
1903 .nway_reset = netdev_nway_reset,
1904 .get_link = netdev_get_link,
1905 .get_msglevel = netdev_get_msglevel,
1906 .set_msglevel = netdev_set_msglevel,
1907 .get_sg = ethtool_op_get_sg,
1908 .get_tx_csum = ethtool_op_get_tx_csum,
1909 };
1910
1911 static int mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1912 {
1913 struct netdev_private *np = netdev_priv(dev);
1914 int rc;
1915
1916 if (!netif_running(dev))
1917 return -EINVAL;
1918
1919 spin_lock_irq(&np->lock);
1920 rc = generic_mii_ioctl(&np->mii, if_mii(rq), cmd, NULL);
1921 spin_unlock_irq(&np->lock);
1922
1923 return rc;
1924 }
1925
1926
1927 static int netdev_close(struct net_device *dev)
1928 {
1929 struct netdev_private *np = netdev_priv(dev);
1930 void __iomem *ioaddr = np->mem;
1931 int i;
1932
1933 netif_stop_queue(dev);
1934
1935 /* Disable interrupts by clearing the interrupt mask. */
1936 iowrite32(0x0000, ioaddr + IMR);
1937
1938 /* Stop the chip's Tx and Rx processes. */
1939 stop_nic_rxtx(ioaddr, 0);
1940
1941 del_timer_sync(&np->timer);
1942 del_timer_sync(&np->reset_timer);
1943
1944 free_irq(dev->irq, dev);
1945
1946 /* Free all the skbuffs in the Rx queue. */
1947 for (i = 0; i < RX_RING_SIZE; i++) {
1948 struct sk_buff *skb = np->rx_ring[i].skbuff;
1949
1950 np->rx_ring[i].status = 0;
1951 if (skb) {
1952 pci_unmap_single(np->pci_dev, np->rx_ring[i].buffer,
1953 np->rx_buf_sz, PCI_DMA_FROMDEVICE);
1954 dev_kfree_skb(skb);
1955 np->rx_ring[i].skbuff = NULL;
1956 }
1957 }
1958
1959 for (i = 0; i < TX_RING_SIZE; i++) {
1960 struct sk_buff *skb = np->tx_ring[i].skbuff;
1961
1962 if (skb) {
1963 pci_unmap_single(np->pci_dev, np->tx_ring[i].buffer,
1964 skb->len, PCI_DMA_TODEVICE);
1965 dev_kfree_skb(skb);
1966 np->tx_ring[i].skbuff = NULL;
1967 }
1968 }
1969
1970 return 0;
1971 }
1972
1973 static struct pci_device_id fealnx_pci_tbl[] = {
1974 {0x1516, 0x0800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1975 {0x1516, 0x0803, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
1976 {0x1516, 0x0891, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
1977 {} /* terminate list */
1978 };
1979 MODULE_DEVICE_TABLE(pci, fealnx_pci_tbl);
1980
1981
1982 static struct pci_driver fealnx_driver = {
1983 .name = "fealnx",
1984 .id_table = fealnx_pci_tbl,
1985 .probe = fealnx_init_one,
1986 .remove = __devexit_p(fealnx_remove_one),
1987 };
1988
1989 static int __init fealnx_init(void)
1990 {
1991 /* when a module, this is printed whether or not devices are found in probe */
1992 #ifdef MODULE
1993 printk(version);
1994 #endif
1995
1996 return pci_module_init(&fealnx_driver);
1997 }
1998
1999 static void __exit fealnx_exit(void)
2000 {
2001 pci_unregister_driver(&fealnx_driver);
2002 }
2003
2004 module_init(fealnx_init);
2005 module_exit(fealnx_exit);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree