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[PATCH] fealnx section fix
[linux.git] / drivers / net / fealnx.c
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1da177e4
LT		 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 [email protected], 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
31static int debug; /* 1-> print debug message */
32static int max_interrupt_work = 20;
33
34/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast). */
35static 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. */
39static 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 */
46static int options[MAX_UNITS] = { -1, -1, -1, -1, -1, -1, -1, -1 };
47static 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. */
90d5aed2 95static char version[] =
1da177e4
LT		 96KERN_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
110MODULE_AUTHOR("Myson or whoever");
111MODULE_DESCRIPTION("Myson MTD-8xx 100/10M Ethernet PCI Adapter Driver");
112MODULE_LICENSE("GPL");
113module_param(max_interrupt_work, int, 0);
114//MODULE_PARM(min_pci_latency, "i");
115module_param(debug, int, 0);
116module_param(rx_copybreak, int, 0);
117module_param(multicast_filter_limit, int, 0);
118module_param_array(options, int, NULL, 0);
119module_param_array(full_duplex, int, NULL, 0);
120MODULE_PARM_DESC(max_interrupt_work, "fealnx maximum events handled per interrupt");
121MODULE_PARM_DESC(debug, "fealnx enable debugging (0-1)");
122MODULE_PARM_DESC(rx_copybreak, "fealnx copy breakpoint for copy-only-tiny-frames");
123MODULE_PARM_DESC(multicast_filter_limit, "fealnx maximum number of filtered multicast addresses");
124MODULE_PARM_DESC(options, "fealnx: Bits 0-3: media type, bit 17: full duplex");
125MODULE_PARM_DESC(full_duplex, "fealnx full duplex setting(s) (1)");
126
46009c8b
JG		 127enum {
128 MIN_REGION_SIZE = 136,
129};
1da177e4 130
1da177e4
LT		 131/* A chip capabilities table, matching the entries in pci_tbl[] above. */
132enum chip_capability_flags {
133 HAS_MII_XCVR,
134 HAS_CHIP_XCVR,
135};
136
137/* 89/6/13 add, */
138/* for different PHY */
139enum 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
149struct chip_info {
150 char *chip_name;
1da177e4
LT		 151 int flags;
152};
153
46009c8b 154static const struct chip_info skel_netdrv_tbl[] __devinitdata = {
c3d8e682
JG		 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 },
1da177e4
LT		 158};
159
160/* Offsets to the Command and Status Registers. */
161enum 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. */
191enum 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 */
216enum 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. */
239struct 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 */
251enum 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
268enum rx_desc_control_bits {
269 RXIC = 0x00800000, /* interrupt control */
270 RBSShift = 0,
271};
272
273enum 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
286enum 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
376struct 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
427static int mdio_read(struct net_device *dev, int phy_id, int location);
428static void mdio_write(struct net_device *dev, int phy_id, int location, int value);
429static int netdev_open(struct net_device *dev);
430static void getlinktype(struct net_device *dev);
431static void getlinkstatus(struct net_device *dev);
432static void netdev_timer(unsigned long data);
433static void reset_timer(unsigned long data);
434static void tx_timeout(struct net_device *dev);
435static void init_ring(struct net_device *dev);
436static int start_tx(struct sk_buff *skb, struct net_device *dev);
437static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *regs);
438static int netdev_rx(struct net_device *dev);
439static void set_rx_mode(struct net_device *dev);
440static void __set_rx_mode(struct net_device *dev);
441static struct net_device_stats *get_stats(struct net_device *dev);
442static int mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
443static struct ethtool_ops netdev_ethtool_ops;
444static int netdev_close(struct net_device *dev);
445static void reset_rx_descriptors(struct net_device *dev);
446static void reset_tx_descriptors(struct net_device *dev);
447
448static 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
459static 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
471static 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
490/* when built into the kernel, we only print version if device is found */
491#ifndef MODULE
492 static int printed_version;
493 if (!printed_version++)
494 printk(version);
495#endif
496
497 card_idx++;
498 sprintf(boardname, "fealnx%d", card_idx);
499
500 option = card_idx < MAX_UNITS ? options[card_idx] : 0;
501
502 i = pci_enable_device(pdev);
503 if (i) return i;
504 pci_set_master(pdev);
505
506 len = pci_resource_len(pdev, bar);
507 if (len < MIN_REGION_SIZE) {
9b91cf9d 508 dev_err(&pdev->dev,
46009c8b 509 "region size %ld too small, aborting\n", len);
1da177e4
LT		 510 return -ENODEV;
511 }
512
513 i = pci_request_regions(pdev, boardname);
46009c8b
JG		 514 if (i)
515 return i;
1da177e4
LT		 516
517 irq = pdev->irq;
518
519 ioaddr = pci_iomap(pdev, bar, len);
520 if (!ioaddr) {
521 err = -ENOMEM;
522 goto err_out_res;
523 }
524
525 dev = alloc_etherdev(sizeof(struct netdev_private));
526 if (!dev) {
527 err = -ENOMEM;
528 goto err_out_unmap;
529 }
530 SET_MODULE_OWNER(dev);
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;
9b91cf9d 581 dev_info(&pdev->dev,
2e8a538d
JG		 582 "MII PHY found at address %d, status "
583 "0x%4.4x.\n", phy, mii_status);
1da177e4
LT		 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;
2e8a538d 606 if (phy_idx == 0)
9b91cf9d 607 dev_warn(&pdev->dev,
2e8a538d
JG		 608 "MII PHY not found -- this device may "
609 "not operate correctly.\n");
1da177e4
LT		 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) {
9b91cf9d 635 dev_info(&pdev->dev, "Media type forced to Full Duplex.\n");
1da177e4
LT		 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, ",
669 dev->name, skel_netdrv_tbl[chip_id].chip_name, ioaddr);
670 for (i = 0; i < 5; i++)
671 printk("%2.2x:", dev->dev_addr[i]);
672 printk("%2.2x, IRQ %d.\n", dev->dev_addr[i], irq);
673
674 return 0;
675
676err_out_free_tx:
677 pci_free_consistent(pdev, TX_TOTAL_SIZE, np->tx_ring, np->tx_ring_dma);
678err_out_free_rx:
679 pci_free_consistent(pdev, RX_TOTAL_SIZE, np->rx_ring, np->rx_ring_dma);
680err_out_free_dev:
681 free_netdev(dev);
682err_out_unmap:
683 pci_iounmap(pdev, ioaddr);
684err_out_res:
685 pci_release_regions(pdev);
686 return err;
687}
688
689
690static void __devexit fealnx_remove_one(struct pci_dev *pdev)
691{
692 struct net_device *dev = pci_get_drvdata(pdev);
693
694 if (dev) {
695 struct netdev_private *np = netdev_priv(dev);
696
697 pci_free_consistent(pdev, TX_TOTAL_SIZE, np->tx_ring,
698 np->tx_ring_dma);
699 pci_free_consistent(pdev, RX_TOTAL_SIZE, np->rx_ring,
700 np->rx_ring_dma);
701 unregister_netdev(dev);
702 pci_iounmap(pdev, np->mem);
703 free_netdev(dev);
704 pci_release_regions(pdev);
705 pci_set_drvdata(pdev, NULL);
706 } else
707 printk(KERN_ERR "fealnx: remove for unknown device\n");
708}
709
710
711static ulong m80x_send_cmd_to_phy(void __iomem *miiport, int opcode, int phyad, int regad)
712{
713 ulong miir;
714 int i;
715 unsigned int mask, data;
716
717 /* enable MII output */
718 miir = (ulong) ioread32(miiport);
719 miir &= 0xfffffff0;
720
721 miir |= MASK_MIIR_MII_WRITE + MASK_MIIR_MII_MDO;
722
723 /* send 32 1's preamble */
724 for (i = 0; i < 32; i++) {
725 /* low MDC; MDO is already high (miir) */
726 miir &= ~MASK_MIIR_MII_MDC;
727 iowrite32(miir, miiport);
728
729 /* high MDC */
730 miir |= MASK_MIIR_MII_MDC;
731 iowrite32(miir, miiport);
732 }
733
734 /* calculate ST+OP+PHYAD+REGAD+TA */
735 data = opcode | (phyad << 7) | (regad << 2);
736
737 /* sent out */
738 mask = 0x8000;
739 while (mask) {
740 /* low MDC, prepare MDO */
741 miir &= ~(MASK_MIIR_MII_MDC + MASK_MIIR_MII_MDO);
742 if (mask & data)
743 miir |= MASK_MIIR_MII_MDO;
744
745 iowrite32(miir, miiport);
746 /* high MDC */
747 miir |= MASK_MIIR_MII_MDC;
748 iowrite32(miir, miiport);
749 udelay(30);
750
751 /* next */
752 mask >>= 1;
753 if (mask == 0x2 && opcode == OP_READ)
754 miir &= ~MASK_MIIR_MII_WRITE;
755 }
756 return miir;
757}
758
759
760static int mdio_read(struct net_device *dev, int phyad, int regad)
761{
762 struct netdev_private *np = netdev_priv(dev);
763 void __iomem *miiport = np->mem + MANAGEMENT;
764 ulong miir;
765 unsigned int mask, data;
766
767 miir = m80x_send_cmd_to_phy(miiport, OP_READ, phyad, regad);
768
769 /* read data */
770 mask = 0x8000;
771 data = 0;
772 while (mask) {
773 /* low MDC */
774 miir &= ~MASK_MIIR_MII_MDC;
775 iowrite32(miir, miiport);
776
777 /* read MDI */
778 miir = ioread32(miiport);
779 if (miir & MASK_MIIR_MII_MDI)
780 data |= mask;
781
782 /* high MDC, and wait */
783 miir |= MASK_MIIR_MII_MDC;
784 iowrite32(miir, miiport);
785 udelay(30);
786
787 /* next */
788 mask >>= 1;
789 }
790
791 /* low MDC */
792 miir &= ~MASK_MIIR_MII_MDC;
793 iowrite32(miir, miiport);
794
795 return data & 0xffff;
796}
797
798
799static void mdio_write(struct net_device *dev, int phyad, int regad, int data)
800{
801 struct netdev_private *np = netdev_priv(dev);
802 void __iomem *miiport = np->mem + MANAGEMENT;
803 ulong miir;
804 unsigned int mask;
805
806 miir = m80x_send_cmd_to_phy(miiport, OP_WRITE, phyad, regad);
807
808 /* write data */
809 mask = 0x8000;
810 while (mask) {
811 /* low MDC, prepare MDO */
812 miir &= ~(MASK_MIIR_MII_MDC + MASK_MIIR_MII_MDO);
813 if (mask & data)
814 miir |= MASK_MIIR_MII_MDO;
815 iowrite32(miir, miiport);
816
817 /* high MDC */
818 miir |= MASK_MIIR_MII_MDC;
819 iowrite32(miir, miiport);
820
821 /* next */
822 mask >>= 1;
823 }
824
825 /* low MDC */
826 miir &= ~MASK_MIIR_MII_MDC;
827 iowrite32(miir, miiport);
828}
829
830
831static int netdev_open(struct net_device *dev)
832{
833 struct netdev_private *np = netdev_priv(dev);
834 void __iomem *ioaddr = np->mem;
835 int i;
836
837 iowrite32(0x00000001, ioaddr + BCR); /* Reset */
838
1fb9df5d 839 if (request_irq(dev->irq, &intr_handler, IRQF_SHARED, dev->name, dev))
1da177e4
LT		 840 return -EAGAIN;
841
842 for (i = 0; i < 3; i++)
843 iowrite16(((unsigned short*)dev->dev_addr)[i],
844 ioaddr + PAR0 + i*2);
845
846 init_ring(dev);
847
848 iowrite32(np->rx_ring_dma, ioaddr + RXLBA);
849 iowrite32(np->tx_ring_dma, ioaddr + TXLBA);
850
851 /* Initialize other registers. */
852 /* Configure the PCI bus bursts and FIFO thresholds.
853 486: Set 8 longword burst.
854 586: no burst limit.
855 Burst length 5:3
856 0 0 0 1
857 0 0 1 4
858 0 1 0 8
859 0 1 1 16
860 1 0 0 32
861 1 0 1 64
862 1 1 0 128
863 1 1 1 256
864 Wait the specified 50 PCI cycles after a reset by initializing
865 Tx and Rx queues and the address filter list.
866 FIXME (Ueimor): optimistic for alpha + posted writes ? */
867#if defined(__powerpc__) || defined(__sparc__)
868// 89/9/1 modify,
869// np->bcrvalue=0x04 | 0x0x38; /* big-endian, 256 burst length */
870 np->bcrvalue = 0x04 | 0x10; /* big-endian, tx 8 burst length */
871 np->crvalue = 0xe00; /* rx 128 burst length */
872#elif defined(__alpha__) || defined(__x86_64__)
873// 89/9/1 modify,
874// np->bcrvalue=0x38; /* little-endian, 256 burst length */
875 np->bcrvalue = 0x10; /* little-endian, 8 burst length */
876 np->crvalue = 0xe00; /* rx 128 burst length */
877#elif defined(__i386__)
878#if defined(MODULE)
879// 89/9/1 modify,
880// np->bcrvalue=0x38; /* little-endian, 256 burst length */
881 np->bcrvalue = 0x10; /* little-endian, 8 burst length */
882 np->crvalue = 0xe00; /* rx 128 burst length */
883#else
884 /* When not a module we can work around broken '486 PCI boards. */
885#define x86 boot_cpu_data.x86
886// 89/9/1 modify,
887// np->bcrvalue=(x86 <= 4 ? 0x10 : 0x38);
888 np->bcrvalue = 0x10;
889 np->crvalue = (x86 <= 4 ? 0xa00 : 0xe00);
890 if (x86 <= 4)
891 printk(KERN_INFO "%s: This is a 386/486 PCI system, setting burst "
892 "length to %x.\n", dev->name, (x86 <= 4 ? 0x10 : 0x38));
893#endif
894#else
895// 89/9/1 modify,
896// np->bcrvalue=0x38;
897 np->bcrvalue = 0x10;
898 np->crvalue = 0xe00; /* rx 128 burst length */
899#warning Processor architecture undefined!
900#endif
901// 89/12/29 add,
902// 90/1/16 modify,
903// np->imrvalue=FBE|TUNF|CNTOVF|RBU|TI|RI;
904 np->imrvalue = TUNF | CNTOVF | RBU | TI | RI;
905 if (np->pci_dev->device == 0x891) {
906 np->bcrvalue |= 0x200; /* set PROG bit */
907 np->crvalue |= CR_W_ENH; /* set enhanced bit */
908 np->imrvalue |= ETI;
909 }
910 iowrite32(np->bcrvalue, ioaddr + BCR);
911
912 if (dev->if_port == 0)
913 dev->if_port = np->default_port;
914
915 iowrite32(0, ioaddr + RXPDR);
916// 89/9/1 modify,
917// np->crvalue = 0x00e40001; /* tx store and forward, tx/rx enable */
918 np->crvalue |= 0x00e40001; /* tx store and forward, tx/rx enable */
919 np->mii.full_duplex = np->mii.force_media;
920 getlinkstatus(dev);
921 if (np->linkok)
922 getlinktype(dev);
923 __set_rx_mode(dev);
924
925 netif_start_queue(dev);
926
927 /* Clear and Enable interrupts by setting the interrupt mask. */
928 iowrite32(FBE | TUNF | CNTOVF | RBU | TI | RI, ioaddr + ISR);
929 iowrite32(np->imrvalue, ioaddr + IMR);
930
931 if (debug)
932 printk(KERN_DEBUG "%s: Done netdev_open().\n", dev->name);
933
934 /* Set the timer to check for link beat. */
935 init_timer(&np->timer);
936 np->timer.expires = RUN_AT(3 * HZ);
937 np->timer.data = (unsigned long) dev;
938 np->timer.function = &netdev_timer;
939
940 /* timer handler */
941 add_timer(&np->timer);
942
943 init_timer(&np->reset_timer);
944 np->reset_timer.data = (unsigned long) dev;
945 np->reset_timer.function = &reset_timer;
946 np->reset_timer_armed = 0;
947
948 return 0;
949}
950
951
952static void getlinkstatus(struct net_device *dev)
953/* function: Routine will read MII Status Register to get link status. */
954/* input : dev... pointer to the adapter block. */
955/* output : none. */
956{
957 struct netdev_private *np = netdev_priv(dev);
958 unsigned int i, DelayTime = 0x1000;
959
960 np->linkok = 0;
961
962 if (np->PHYType == MysonPHY) {
963 for (i = 0; i < DelayTime; ++i) {
964 if (ioread32(np->mem + BMCRSR) & LinkIsUp2) {
965 np->linkok = 1;
966 return;
967 }
968 udelay(100);
969 }
970 } else {
971 for (i = 0; i < DelayTime; ++i) {
972 if (mdio_read(dev, np->phys[0], MII_BMSR) & BMSR_LSTATUS) {
973 np->linkok = 1;
974 return;
975 }
976 udelay(100);
977 }
978 }
979}
980
981
982static void getlinktype(struct net_device *dev)
983{
984 struct netdev_private *np = netdev_priv(dev);
985
986 if (np->PHYType == MysonPHY) { /* 3-in-1 case */
987 if (ioread32(np->mem + TCRRCR) & CR_R_FD)
988 np->duplexmode = 2; /* full duplex */
989 else
990 np->duplexmode = 1; /* half duplex */
991 if (ioread32(np->mem + TCRRCR) & CR_R_PS10)
992 np->line_speed = 1; /* 10M */
993 else
994 np->line_speed = 2; /* 100M */
995 } else {
996 if (np->PHYType == SeeqPHY) { /* this PHY is SEEQ 80225 */
997 unsigned int data;
998
999 data = mdio_read(dev, np->phys[0], MIIRegister18);
1000 if (data & SPD_DET_100)
1001 np->line_speed = 2; /* 100M */
1002 else
1003 np->line_speed = 1; /* 10M */
1004 if (data & DPLX_DET_FULL)
1005 np->duplexmode = 2; /* full duplex mode */
1006 else
1007 np->duplexmode = 1; /* half duplex mode */
1008 } else if (np->PHYType == AhdocPHY) {
1009 unsigned int data;
1010
1011 data = mdio_read(dev, np->phys[0], DiagnosticReg);
1012 if (data & Speed_100)
1013 np->line_speed = 2; /* 100M */
1014 else
1015 np->line_speed = 1; /* 10M */
1016 if (data & DPLX_FULL)
1017 np->duplexmode = 2; /* full duplex mode */
1018 else
1019 np->duplexmode = 1; /* half duplex mode */
1020 }
1021/* 89/6/13 add, (begin) */
1022 else if (np->PHYType == MarvellPHY) {
1023 unsigned int data;
1024
1025 data = mdio_read(dev, np->phys[0], SpecificReg);
1026 if (data & Full_Duplex)
1027 np->duplexmode = 2; /* full duplex mode */
1028 else
1029 np->duplexmode = 1; /* half duplex mode */
1030 data &= SpeedMask;
1031 if (data == Speed_1000M)
1032 np->line_speed = 3; /* 1000M */
1033 else if (data == Speed_100M)
1034 np->line_speed = 2; /* 100M */
1035 else
1036 np->line_speed = 1; /* 10M */
1037 }
1038/* 89/6/13 add, (end) */
1039/* 89/7/27 add, (begin) */
1040 else if (np->PHYType == Myson981) {
1041 unsigned int data;
1042
1043 data = mdio_read(dev, np->phys[0], StatusRegister);
1044
1045 if (data & SPEED100)
1046 np->line_speed = 2;
1047 else
1048 np->line_speed = 1;
1049
1050 if (data & FULLMODE)
1051 np->duplexmode = 2;
1052 else
1053 np->duplexmode = 1;
1054 }
1055/* 89/7/27 add, (end) */
1056/* 89/12/29 add */
1057 else if (np->PHYType == LevelOnePHY) {
1058 unsigned int data;
1059
1060 data = mdio_read(dev, np->phys[0], SpecificReg);
1061 if (data & LXT1000_Full)
1062 np->duplexmode = 2; /* full duplex mode */
1063 else
1064 np->duplexmode = 1; /* half duplex mode */
1065 data &= SpeedMask;
1066 if (data == LXT1000_1000M)
1067 np->line_speed = 3; /* 1000M */
1068 else if (data == LXT1000_100M)
1069 np->line_speed = 2; /* 100M */
1070 else
1071 np->line_speed = 1; /* 10M */
1072 }
1073 np->crvalue &= (~CR_W_PS10) & (~CR_W_FD) & (~CR_W_PS1000);
1074 if (np->line_speed == 1)
1075 np->crvalue |= CR_W_PS10;
1076 else if (np->line_speed == 3)
1077 np->crvalue |= CR_W_PS1000;
1078 if (np->duplexmode == 2)
1079 np->crvalue |= CR_W_FD;
1080 }
1081}
1082
1083
1084/* Take lock before calling this */
1085static void allocate_rx_buffers(struct net_device *dev)
1086{
1087 struct netdev_private *np = netdev_priv(dev);
1088
1089 /* allocate skb for rx buffers */
1090 while (np->really_rx_count != RX_RING_SIZE) {
1091 struct sk_buff *skb;
1092
1093 skb = dev_alloc_skb(np->rx_buf_sz);
1094 if (skb == NULL)
1095 break; /* Better luck next round. */
1096
1097 while (np->lack_rxbuf->skbuff)
1098 np->lack_rxbuf = np->lack_rxbuf->next_desc_logical;
1099
1100 skb->dev = dev; /* Mark as being used by this device. */
1101 np->lack_rxbuf->skbuff = skb;
689be439 1102 np->lack_rxbuf->buffer = pci_map_single(np->pci_dev, skb->data,
1da177e4
LT		 1103 np->rx_buf_sz, PCI_DMA_FROMDEVICE);
1104 np->lack_rxbuf->status = RXOWN;
1105 ++np->really_rx_count;
1106 }
1107}
1108
1109
1110static void netdev_timer(unsigned long data)
1111{
1112 struct net_device *dev = (struct net_device *) data;
1113 struct netdev_private *np = netdev_priv(dev);
1114 void __iomem *ioaddr = np->mem;
1115 int old_crvalue = np->crvalue;
1116 unsigned int old_linkok = np->linkok;
1117 unsigned long flags;
1118
1119 if (debug)
1120 printk(KERN_DEBUG "%s: Media selection timer tick, status %8.8x "
1121 "config %8.8x.\n", dev->name, ioread32(ioaddr + ISR),
1122 ioread32(ioaddr + TCRRCR));
1123
1124 spin_lock_irqsave(&np->lock, flags);
1125
1126 if (np->flags == HAS_MII_XCVR) {
1127 getlinkstatus(dev);
1128 if ((old_linkok == 0) && (np->linkok == 1)) { /* we need to detect the media type again */
1129 getlinktype(dev);
1130 if (np->crvalue != old_crvalue) {
1131 stop_nic_rxtx(ioaddr, np->crvalue);
1132 iowrite32(np->crvalue, ioaddr + TCRRCR);
1133 }
1134 }
1135 }
1136
1137 allocate_rx_buffers(dev);
1138
1139 spin_unlock_irqrestore(&np->lock, flags);
1140
1141 np->timer.expires = RUN_AT(10 * HZ);
1142 add_timer(&np->timer);
1143}
1144
1145
1146/* Take lock before calling */
1147/* Reset chip and disable rx, tx and interrupts */
1148static void reset_and_disable_rxtx(struct net_device *dev)
1149{
1150 struct netdev_private *np = netdev_priv(dev);
1151 void __iomem *ioaddr = np->mem;
1152 int delay=51;
1153
1154 /* Reset the chip's Tx and Rx processes. */
1155 stop_nic_rxtx(ioaddr, 0);
1156
1157 /* Disable interrupts by clearing the interrupt mask. */
1158 iowrite32(0, ioaddr + IMR);
1159
1160 /* Reset the chip to erase previous misconfiguration. */
1161 iowrite32(0x00000001, ioaddr + BCR);
1162
1163 /* Ueimor: wait for 50 PCI cycles (and flush posted writes btw).
1164 We surely wait too long (address+data phase). Who cares? */
1165 while (--delay) {
1166 ioread32(ioaddr + BCR);
1167 rmb();
1168 }
1169}
1170
1171
1172/* Take lock before calling */
1173/* Restore chip after reset */
1174static void enable_rxtx(struct net_device *dev)
1175{
1176 struct netdev_private *np = netdev_priv(dev);
1177 void __iomem *ioaddr = np->mem;
1178
1179 reset_rx_descriptors(dev);
1180
1181 iowrite32(np->tx_ring_dma + ((char*)np->cur_tx - (char*)np->tx_ring),
1182 ioaddr + TXLBA);
1183 iowrite32(np->rx_ring_dma + ((char*)np->cur_rx - (char*)np->rx_ring),
1184 ioaddr + RXLBA);
1185
1186 iowrite32(np->bcrvalue, ioaddr + BCR);
1187
1188 iowrite32(0, ioaddr + RXPDR);
1189 __set_rx_mode(dev); /* changes np->crvalue, writes it into TCRRCR */
1190
1191 /* Clear and Enable interrupts by setting the interrupt mask. */
1192 iowrite32(FBE | TUNF | CNTOVF | RBU | TI | RI, ioaddr + ISR);
1193 iowrite32(np->imrvalue, ioaddr + IMR);
1194
1195 iowrite32(0, ioaddr + TXPDR);
1196}
1197
1198
1199static void reset_timer(unsigned long data)
1200{
1201 struct net_device *dev = (struct net_device *) data;
1202 struct netdev_private *np = netdev_priv(dev);
1203 unsigned long flags;
1204
1205 printk(KERN_WARNING "%s: resetting tx and rx machinery\n", dev->name);
1206
1207 spin_lock_irqsave(&np->lock, flags);
1208 np->crvalue = np->crvalue_sv;
1209 np->imrvalue = np->imrvalue_sv;
1210
1211 reset_and_disable_rxtx(dev);
1212 /* works for me without this:
1213 reset_tx_descriptors(dev); */
1214 enable_rxtx(dev);
1215 netif_start_queue(dev); /* FIXME: or netif_wake_queue(dev); ? */
1216
1217 np->reset_timer_armed = 0;
1218
1219 spin_unlock_irqrestore(&np->lock, flags);
1220}
1221
1222
1223static void tx_timeout(struct net_device *dev)
1224{
1225 struct netdev_private *np = netdev_priv(dev);
1226 void __iomem *ioaddr = np->mem;
1227 unsigned long flags;
1228 int i;
1229
1230 printk(KERN_WARNING "%s: Transmit timed out, status %8.8x,"
1231 " resetting...\n", dev->name, ioread32(ioaddr + ISR));
1232
1233 {
1234 printk(KERN_DEBUG " Rx ring %p: ", np->rx_ring);
1235 for (i = 0; i < RX_RING_SIZE; i++)
1236 printk(" %8.8x", (unsigned int) np->rx_ring[i].status);
1237 printk("\n" KERN_DEBUG " Tx ring %p: ", np->tx_ring);
1238 for (i = 0; i < TX_RING_SIZE; i++)
1239 printk(" %4.4x", np->tx_ring[i].status);
1240 printk("\n");
1241 }
1242
1243 spin_lock_irqsave(&np->lock, flags);
1244
1245 reset_and_disable_rxtx(dev);
1246 reset_tx_descriptors(dev);
1247 enable_rxtx(dev);
1248
1249 spin_unlock_irqrestore(&np->lock, flags);
1250
1251 dev->trans_start = jiffies;
1252 np->stats.tx_errors++;
1253 netif_wake_queue(dev); /* or .._start_.. ?? */
1254}
1255
1256
1257/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
1258static void init_ring(struct net_device *dev)
1259{
1260 struct netdev_private *np = netdev_priv(dev);
1261 int i;
1262
1263 /* initialize rx variables */
1264 np->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);
1265 np->cur_rx = &np->rx_ring[0];
1266 np->lack_rxbuf = np->rx_ring;
1267 np->really_rx_count = 0;
1268
1269 /* initial rx descriptors. */
1270 for (i = 0; i < RX_RING_SIZE; i++) {
1271 np->rx_ring[i].status = 0;
1272 np->rx_ring[i].control = np->rx_buf_sz << RBSShift;
1273 np->rx_ring[i].next_desc = np->rx_ring_dma +
1274 (i + 1)*sizeof(struct fealnx_desc);
1275 np->rx_ring[i].next_desc_logical = &np->rx_ring[i + 1];
1276 np->rx_ring[i].skbuff = NULL;
1277 }
1278
1279 /* for the last rx descriptor */
1280 np->rx_ring[i - 1].next_desc = np->rx_ring_dma;
1281 np->rx_ring[i - 1].next_desc_logical = np->rx_ring;
1282
1283 /* allocate skb for rx buffers */
1284 for (i = 0; i < RX_RING_SIZE; i++) {
1285 struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz);
1286
1287 if (skb == NULL) {
1288 np->lack_rxbuf = &np->rx_ring[i];
1289 break;
1290 }
1291
1292 ++np->really_rx_count;
1293 np->rx_ring[i].skbuff = skb;
1294 skb->dev = dev; /* Mark as being used by this device. */
689be439 1295 np->rx_ring[i].buffer = pci_map_single(np->pci_dev, skb->data,
1da177e4
LT		 1296 np->rx_buf_sz, PCI_DMA_FROMDEVICE);
1297 np->rx_ring[i].status = RXOWN;
1298 np->rx_ring[i].control |= RXIC;
1299 }
1300
1301 /* initialize tx variables */
1302 np->cur_tx = &np->tx_ring[0];
1303 np->cur_tx_copy = &np->tx_ring[0];
1304 np->really_tx_count = 0;
1305 np->free_tx_count = TX_RING_SIZE;
1306
1307 for (i = 0; i < TX_RING_SIZE; i++) {
1308 np->tx_ring[i].status = 0;
1309 /* do we need np->tx_ring[i].control = XXX; ?? */
1310 np->tx_ring[i].next_desc = np->tx_ring_dma +
1311 (i + 1)*sizeof(struct fealnx_desc);
1312 np->tx_ring[i].next_desc_logical = &np->tx_ring[i + 1];
1313 np->tx_ring[i].skbuff = NULL;
1314 }
1315
1316 /* for the last tx descriptor */
1317 np->tx_ring[i - 1].next_desc = np->tx_ring_dma;
1318 np->tx_ring[i - 1].next_desc_logical = &np->tx_ring[0];
1319}
1320
1321
1322static int start_tx(struct sk_buff *skb, struct net_device *dev)
1323{
1324 struct netdev_private *np = netdev_priv(dev);
1325 unsigned long flags;
1326
1327 spin_lock_irqsave(&np->lock, flags);
1328
1329 np->cur_tx_copy->skbuff = skb;
1330
1331#define one_buffer
1332#define BPT 1022
1333#if defined(one_buffer)
1334 np->cur_tx_copy->buffer = pci_map_single(np->pci_dev, skb->data,
1335 skb->len, PCI_DMA_TODEVICE);
1336 np->cur_tx_copy->control = TXIC | TXLD | TXFD | CRCEnable | PADEnable;
1337 np->cur_tx_copy->control |= (skb->len << PKTSShift); /* pkt size */
1338 np->cur_tx_copy->control |= (skb->len << TBSShift); /* buffer size */
1339// 89/12/29 add,
1340 if (np->pci_dev->device == 0x891)
1341 np->cur_tx_copy->control |= ETIControl | RetryTxLC;
1342 np->cur_tx_copy->status = TXOWN;
1343 np->cur_tx_copy = np->cur_tx_copy->next_desc_logical;
1344 --np->free_tx_count;
1345#elif defined(two_buffer)
1346 if (skb->len > BPT) {
1347 struct fealnx_desc *next;
1348
1349 /* for the first descriptor */
1350 np->cur_tx_copy->buffer = pci_map_single(np->pci_dev, skb->data,
1351 BPT, PCI_DMA_TODEVICE);
1352 np->cur_tx_copy->control = TXIC | TXFD | CRCEnable | PADEnable;
1353 np->cur_tx_copy->control |= (skb->len << PKTSShift); /* pkt size */
1354 np->cur_tx_copy->control |= (BPT << TBSShift); /* buffer size */
1355
1356 /* for the last descriptor */
1357 next = np->cur_tx_copy->next_desc_logical;
1358 next->skbuff = skb;
1359 next->control = TXIC | TXLD | CRCEnable | PADEnable;
1360 next->control |= (skb->len << PKTSShift); /* pkt size */
1361 next->control |= ((skb->len - BPT) << TBSShift); /* buf size */
1362// 89/12/29 add,
1363 if (np->pci_dev->device == 0x891)
1364 np->cur_tx_copy->control |= ETIControl | RetryTxLC;
1365 next->buffer = pci_map_single(ep->pci_dev, skb->data + BPT,
1366 skb->len - BPT, PCI_DMA_TODEVICE);
1367
1368 next->status = TXOWN;
1369 np->cur_tx_copy->status = TXOWN;
1370
1371 np->cur_tx_copy = next->next_desc_logical;
1372 np->free_tx_count -= 2;
1373 } else {
1374 np->cur_tx_copy->buffer = pci_map_single(np->pci_dev, skb->data,
1375 skb->len, PCI_DMA_TODEVICE);
1376 np->cur_tx_copy->control = TXIC | TXLD | TXFD | CRCEnable | PADEnable;
1377 np->cur_tx_copy->control |= (skb->len << PKTSShift); /* pkt size */
1378 np->cur_tx_copy->control |= (skb->len << TBSShift); /* buffer size */
1379// 89/12/29 add,
1380 if (np->pci_dev->device == 0x891)
1381 np->cur_tx_copy->control |= ETIControl | RetryTxLC;
1382 np->cur_tx_copy->status = TXOWN;
1383 np->cur_tx_copy = np->cur_tx_copy->next_desc_logical;
1384 --np->free_tx_count;
1385 }
1386#endif
1387
1388 if (np->free_tx_count < 2)
1389 netif_stop_queue(dev);
1390 ++np->really_tx_count;
1391 iowrite32(0, np->mem + TXPDR);
1392 dev->trans_start = jiffies;
1393
1394 spin_unlock_irqrestore(&np->lock, flags);
1395 return 0;
1396}
1397
1398
1399/* Take lock before calling */
1400/* Chip probably hosed tx ring. Clean up. */
1401static void reset_tx_descriptors(struct net_device *dev)
1402{
1403 struct netdev_private *np = netdev_priv(dev);
1404 struct fealnx_desc *cur;
1405 int i;
1406
1407 /* initialize tx variables */
1408 np->cur_tx = &np->tx_ring[0];
1409 np->cur_tx_copy = &np->tx_ring[0];
1410 np->really_tx_count = 0;
1411 np->free_tx_count = TX_RING_SIZE;
1412
1413 for (i = 0; i < TX_RING_SIZE; i++) {
1414 cur = &np->tx_ring[i];
1415 if (cur->skbuff) {
1416 pci_unmap_single(np->pci_dev, cur->buffer,
1417 cur->skbuff->len, PCI_DMA_TODEVICE);
400de2c0 1418 dev_kfree_skb_any(cur->skbuff);
1da177e4
LT		 1419 cur->skbuff = NULL;
1420 }
1421 cur->status = 0;
1422 cur->control = 0; /* needed? */
1423 /* probably not needed. We do it for purely paranoid reasons */
1424 cur->next_desc = np->tx_ring_dma +
1425 (i + 1)*sizeof(struct fealnx_desc);
1426 cur->next_desc_logical = &np->tx_ring[i + 1];
1427 }
1428 /* for the last tx descriptor */
1429 np->tx_ring[TX_RING_SIZE - 1].next_desc = np->tx_ring_dma;
1430 np->tx_ring[TX_RING_SIZE - 1].next_desc_logical = &np->tx_ring[0];
1431}
1432
1433
1434/* Take lock and stop rx before calling this */
1435static void reset_rx_descriptors(struct net_device *dev)
1436{
1437 struct netdev_private *np = netdev_priv(dev);
1438 struct fealnx_desc *cur = np->cur_rx;
1439 int i;
1440
1441 allocate_rx_buffers(dev);
1442
1443 for (i = 0; i < RX_RING_SIZE; i++) {
1444 if (cur->skbuff)
1445 cur->status = RXOWN;
1446 cur = cur->next_desc_logical;
1447 }
1448
1449 iowrite32(np->rx_ring_dma + ((char*)np->cur_rx - (char*)np->rx_ring),
1450 np->mem + RXLBA);
1451}
1452
1453
1454/* The interrupt handler does all of the Rx thread work and cleans up
1455 after the Tx thread. */
1456static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *rgs)
1457{
1458 struct net_device *dev = (struct net_device *) dev_instance;
1459 struct netdev_private *np = netdev_priv(dev);
1460 void __iomem *ioaddr = np->mem;
1461 long boguscnt = max_interrupt_work;
1462 unsigned int num_tx = 0;
1463 int handled = 0;
1464
1465 spin_lock(&np->lock);
1466
1467 iowrite32(0, ioaddr + IMR);
1468
1469 do {
1470 u32 intr_status = ioread32(ioaddr + ISR);
1471
1472 /* Acknowledge all of the current interrupt sources ASAP. */
1473 iowrite32(intr_status, ioaddr + ISR);
1474
1475 if (debug)
1476 printk(KERN_DEBUG "%s: Interrupt, status %4.4x.\n", dev->name,
1477 intr_status);
1478
1479 if (!(intr_status & np->imrvalue))
1480 break;
1481
1482 handled = 1;
1483
1484// 90/1/16 delete,
1485//
1486// if (intr_status & FBE)
1487// { /* fatal error */
1488// stop_nic_tx(ioaddr, 0);
1489// stop_nic_rx(ioaddr, 0);
1490// break;
1491// };
1492
1493 if (intr_status & TUNF)
1494 iowrite32(0, ioaddr + TXPDR);
1495
1496 if (intr_status & CNTOVF) {
1497 /* missed pkts */
1498 np->stats.rx_missed_errors += ioread32(ioaddr + TALLY) & 0x7fff;
1499
1500 /* crc error */
1501 np->stats.rx_crc_errors +=
1502 (ioread32(ioaddr + TALLY) & 0x7fff0000) >> 16;
1503 }
1504
1505 if (intr_status & (RI | RBU)) {
1506 if (intr_status & RI)
1507 netdev_rx(dev);
1508 else {
1509 stop_nic_rx(ioaddr, np->crvalue);
1510 reset_rx_descriptors(dev);
1511 iowrite32(np->crvalue, ioaddr + TCRRCR);
1512 }
1513 }
1514
1515 while (np->really_tx_count) {
1516 long tx_status = np->cur_tx->status;
1517 long tx_control = np->cur_tx->control;
1518
1519 if (!(tx_control & TXLD)) { /* this pkt is combined by two tx descriptors */
1520 struct fealnx_desc *next;
1521
1522 next = np->cur_tx->next_desc_logical;
1523 tx_status = next->status;
1524 tx_control = next->control;
1525 }
1526
1527 if (tx_status & TXOWN)
1528 break;
1529
1530 if (!(np->crvalue & CR_W_ENH)) {
1531 if (tx_status & (CSL | LC | EC | UDF | HF)) {
1532 np->stats.tx_errors++;
1533 if (tx_status & EC)
1534 np->stats.tx_aborted_errors++;
1535 if (tx_status & CSL)
1536 np->stats.tx_carrier_errors++;
1537 if (tx_status & LC)
1538 np->stats.tx_window_errors++;
1539 if (tx_status & UDF)
1540 np->stats.tx_fifo_errors++;
1541 if ((tx_status & HF) && np->mii.full_duplex == 0)
1542 np->stats.tx_heartbeat_errors++;
1543
1544 } else {
1545 np->stats.tx_bytes +=
1546 ((tx_control & PKTSMask) >> PKTSShift);
1547
1548 np->stats.collisions +=
1549 ((tx_status & NCRMask) >> NCRShift);
1550 np->stats.tx_packets++;
1551 }
1552 } else {
1553 np->stats.tx_bytes +=
1554 ((tx_control & PKTSMask) >> PKTSShift);
1555 np->stats.tx_packets++;
1556 }
1557
1558 /* Free the original skb. */
1559 pci_unmap_single(np->pci_dev, np->cur_tx->buffer,
1560 np->cur_tx->skbuff->len, PCI_DMA_TODEVICE);
1561 dev_kfree_skb_irq(np->cur_tx->skbuff);
1562 np->cur_tx->skbuff = NULL;
1563 --np->really_tx_count;
1564 if (np->cur_tx->control & TXLD) {
1565 np->cur_tx = np->cur_tx->next_desc_logical;
1566 ++np->free_tx_count;
1567 } else {
1568 np->cur_tx = np->cur_tx->next_desc_logical;
1569 np->cur_tx = np->cur_tx->next_desc_logical;
1570 np->free_tx_count += 2;
1571 }
1572 num_tx++;
1573 } /* end of for loop */
1574
1575 if (num_tx && np->free_tx_count >= 2)
1576 netif_wake_queue(dev);
1577
1578 /* read transmit status for enhanced mode only */
1579 if (np->crvalue & CR_W_ENH) {
1580 long data;
1581
1582 data = ioread32(ioaddr + TSR);
1583 np->stats.tx_errors += (data & 0xff000000) >> 24;
1584 np->stats.tx_aborted_errors += (data & 0xff000000) >> 24;
1585 np->stats.tx_window_errors += (data & 0x00ff0000) >> 16;
1586 np->stats.collisions += (data & 0x0000ffff);
1587 }
1588
1589 if (--boguscnt < 0) {
1590 printk(KERN_WARNING "%s: Too much work at interrupt, "
1591 "status=0x%4.4x.\n", dev->name, intr_status);
1592 if (!np->reset_timer_armed) {
1593 np->reset_timer_armed = 1;
1594 np->reset_timer.expires = RUN_AT(HZ/2);
1595 add_timer(&np->reset_timer);
1596 stop_nic_rxtx(ioaddr, 0);
1597 netif_stop_queue(dev);
1598 /* or netif_tx_disable(dev); ?? */
1599 /* Prevent other paths from enabling tx,rx,intrs */
1600 np->crvalue_sv = np->crvalue;
1601 np->imrvalue_sv = np->imrvalue;
1602 np->crvalue &= ~(CR_W_TXEN | CR_W_RXEN); /* or simply = 0? */
1603 np->imrvalue = 0;
1604 }
1605
1606 break;
1607 }
1608 } while (1);
1609
1610 /* read the tally counters */
1611 /* missed pkts */
1612 np->stats.rx_missed_errors += ioread32(ioaddr + TALLY) & 0x7fff;
1613
1614 /* crc error */
1615 np->stats.rx_crc_errors += (ioread32(ioaddr + TALLY) & 0x7fff0000) >> 16;
1616
1617 if (debug)
1618 printk(KERN_DEBUG "%s: exiting interrupt, status=%#4.4x.\n",
1619 dev->name, ioread32(ioaddr + ISR));
1620
1621 iowrite32(np->imrvalue, ioaddr + IMR);
1622
1623 spin_unlock(&np->lock);
1624
1625 return IRQ_RETVAL(handled);
1626}
1627
1628
1629/* This routine is logically part of the interrupt handler, but separated
1630 for clarity and better register allocation. */
1631static int netdev_rx(struct net_device *dev)
1632{
1633 struct netdev_private *np = netdev_priv(dev);
1634 void __iomem *ioaddr = np->mem;
1635
1636 /* If EOP is set on the next entry, it's a new packet. Send it up. */
1637 while (!(np->cur_rx->status & RXOWN) && np->cur_rx->skbuff) {
1638 s32 rx_status = np->cur_rx->status;
1639
1640 if (np->really_rx_count == 0)
1641 break;
1642
1643 if (debug)
1644 printk(KERN_DEBUG " netdev_rx() status was %8.8x.\n", rx_status);
1645
1646 if ((!((rx_status & RXFSD) && (rx_status & RXLSD)))
1647 || (rx_status & ErrorSummary)) {
1648 if (rx_status & ErrorSummary) { /* there was a fatal error */
1649 if (debug)
1650 printk(KERN_DEBUG
1651 "%s: Receive error, Rx status %8.8x.\n",
1652 dev->name, rx_status);
1653
1654 np->stats.rx_errors++; /* end of a packet. */
1655 if (rx_status & (LONG | RUNT))
1656 np->stats.rx_length_errors++;
1657 if (rx_status & RXER)
1658 np->stats.rx_frame_errors++;
1659 if (rx_status & CRC)
1660 np->stats.rx_crc_errors++;
1661 } else {
1662 int need_to_reset = 0;
1663 int desno = 0;
1664
1665 if (rx_status & RXFSD) { /* this pkt is too long, over one rx buffer */
1666 struct fealnx_desc *cur;
1667
1668 /* check this packet is received completely? */
1669 cur = np->cur_rx;
1670 while (desno <= np->really_rx_count) {
1671 ++desno;
1672 if ((!(cur->status & RXOWN))
1673 && (cur->status & RXLSD))
1674 break;
1675 /* goto next rx descriptor */
1676 cur = cur->next_desc_logical;
1677 }
1678 if (desno > np->really_rx_count)
1679 need_to_reset = 1;
1680 } else /* RXLSD did not find, something error */
1681 need_to_reset = 1;
1682
1683 if (need_to_reset == 0) {
1684 int i;
1685
1686 np->stats.rx_length_errors++;
1687
1688 /* free all rx descriptors related this long pkt */
1689 for (i = 0; i < desno; ++i) {
1690 if (!np->cur_rx->skbuff) {
1691 printk(KERN_DEBUG
1692 "%s: I'm scared\n", dev->name);
1693 break;
1694 }
1695 np->cur_rx->status = RXOWN;
1696 np->cur_rx = np->cur_rx->next_desc_logical;
1697 }
1698 continue;
1699 } else { /* rx error, need to reset this chip */
1700 stop_nic_rx(ioaddr, np->crvalue);
1701 reset_rx_descriptors(dev);
1702 iowrite32(np->crvalue, ioaddr + TCRRCR);
1703 }
1704 break; /* exit the while loop */
1705 }
1706 } else { /* this received pkt is ok */
1707
1708 struct sk_buff *skb;
1709 /* Omit the four octet CRC from the length. */
1710 short pkt_len = ((rx_status & FLNGMASK) >> FLNGShift) - 4;
1711
1712#ifndef final_version
1713 if (debug)
1714 printk(KERN_DEBUG " netdev_rx() normal Rx pkt length %d"
1715 " status %x.\n", pkt_len, rx_status);
1716#endif
1717
1718 /* Check if the packet is long enough to accept without copying
1719 to a minimally-sized skbuff. */
1720 if (pkt_len < rx_copybreak &&
1721 (skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
1722 skb->dev = dev;
1723 skb_reserve(skb, 2); /* 16 byte align the IP header */
1724 pci_dma_sync_single_for_cpu(np->pci_dev,
1725 np->cur_rx->buffer,
1726 np->rx_buf_sz,
1727 PCI_DMA_FROMDEVICE);
1728 /* Call copy + cksum if available. */
1729
1730#if ! defined(__alpha__)
1731 eth_copy_and_sum(skb,
689be439 1732 np->cur_rx->skbuff->data, pkt_len, 0);
1da177e4
LT		 1733 skb_put(skb, pkt_len);
1734#else
1735 memcpy(skb_put(skb, pkt_len),
689be439 1736 np->cur_rx->skbuff->data, pkt_len);
1da177e4
LT		 1737#endif
1738 pci_dma_sync_single_for_device(np->pci_dev,
1739 np->cur_rx->buffer,
1740 np->rx_buf_sz,
1741 PCI_DMA_FROMDEVICE);
1742 } else {
1743 pci_unmap_single(np->pci_dev,
1744 np->cur_rx->buffer,
1745 np->rx_buf_sz,
1746 PCI_DMA_FROMDEVICE);
1747 skb_put(skb = np->cur_rx->skbuff, pkt_len);
1748 np->cur_rx->skbuff = NULL;
1749 --np->really_rx_count;
1750 }
1751 skb->protocol = eth_type_trans(skb, dev);
1752 netif_rx(skb);
1753 dev->last_rx = jiffies;
1754 np->stats.rx_packets++;
1755 np->stats.rx_bytes += pkt_len;
1756 }
1757
1758 np->cur_rx = np->cur_rx->next_desc_logical;
1759 } /* end of while loop */
1760
1761 /* allocate skb for rx buffers */
1762 allocate_rx_buffers(dev);
1763
1764 return 0;
1765}
1766
1767
1768static struct net_device_stats *get_stats(struct net_device *dev)
1769{
1770 struct netdev_private *np = netdev_priv(dev);
1771 void __iomem *ioaddr = np->mem;
1772
1773 /* The chip only need report frame silently dropped. */
1774 if (netif_running(dev)) {
1775 np->stats.rx_missed_errors += ioread32(ioaddr + TALLY) & 0x7fff;
1776 np->stats.rx_crc_errors += (ioread32(ioaddr + TALLY) & 0x7fff0000) >> 16;
1777 }
1778
1779 return &np->stats;
1780}
1781
1782
1783/* for dev->set_multicast_list */
1784static void set_rx_mode(struct net_device *dev)
1785{
1786 spinlock_t *lp = &((struct netdev_private *)netdev_priv(dev))->lock;
1787 unsigned long flags;
1788 spin_lock_irqsave(lp, flags);
1789 __set_rx_mode(dev);
1790 spin_unlock_irqrestore(lp, flags);
1791}
1792
1793
1794/* Take lock before calling */
1795static void __set_rx_mode(struct net_device *dev)
1796{
1797 struct netdev_private *np = netdev_priv(dev);
1798 void __iomem *ioaddr = np->mem;
1799 u32 mc_filter[2]; /* Multicast hash filter */
1800 u32 rx_mode;
1801
1802 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
1803 /* Unconditionally log net taps. */
1804 printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
1805 memset(mc_filter, 0xff, sizeof(mc_filter));
1806 rx_mode = CR_W_PROM | CR_W_AB | CR_W_AM;
1807 } else if ((dev->mc_count > multicast_filter_limit)
1808 || (dev->flags & IFF_ALLMULTI)) {
1809 /* Too many to match, or accept all multicasts. */
1810 memset(mc_filter, 0xff, sizeof(mc_filter));
1811 rx_mode = CR_W_AB | CR_W_AM;
1812 } else {
1813 struct dev_mc_list *mclist;
1814 int i;
1815
1816 memset(mc_filter, 0, sizeof(mc_filter));
1817 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
1818 i++, mclist = mclist->next) {
1819 unsigned int bit;
1820 bit = (ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26) ^ 0x3F;
1821 mc_filter[bit >> 5] |= (1 << bit);
1822 }
1823 rx_mode = CR_W_AB | CR_W_AM;
1824 }
1825
1826 stop_nic_rxtx(ioaddr, np->crvalue);
1827
1828 iowrite32(mc_filter[0], ioaddr + MAR0);
1829 iowrite32(mc_filter[1], ioaddr + MAR1);
1830 np->crvalue &= ~CR_W_RXMODEMASK;
1831 np->crvalue |= rx_mode;
1832 iowrite32(np->crvalue, ioaddr + TCRRCR);
1833}
1834
1835static void netdev_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1836{
1837 struct netdev_private *np = netdev_priv(dev);
1838
1839 strcpy(info->driver, DRV_NAME);
1840 strcpy(info->version, DRV_VERSION);
1841 strcpy(info->bus_info, pci_name(np->pci_dev));
1842}
1843
1844static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1845{
1846 struct netdev_private *np = netdev_priv(dev);
1847 int rc;
1848
1849 spin_lock_irq(&np->lock);
1850 rc = mii_ethtool_gset(&np->mii, cmd);
1851 spin_unlock_irq(&np->lock);
1852
1853 return rc;
1854}
1855
1856static int netdev_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
1857{
1858 struct netdev_private *np = netdev_priv(dev);
1859 int rc;
1860
1861 spin_lock_irq(&np->lock);
1862 rc = mii_ethtool_sset(&np->mii, cmd);
1863 spin_unlock_irq(&np->lock);
1864
1865 return rc;
1866}
1867
1868static int netdev_nway_reset(struct net_device *dev)
1869{
1870 struct netdev_private *np = netdev_priv(dev);
1871 return mii_nway_restart(&np->mii);
1872}
1873
1874static u32 netdev_get_link(struct net_device *dev)
1875{
1876 struct netdev_private *np = netdev_priv(dev);
1877 return mii_link_ok(&np->mii);
1878}
1879
1880static u32 netdev_get_msglevel(struct net_device *dev)
1881{
1882 return debug;
1883}
1884
1885static void netdev_set_msglevel(struct net_device *dev, u32 value)
1886{
1887 debug = value;
1888}
1889
1890static struct ethtool_ops netdev_ethtool_ops = {
1891 .get_drvinfo = netdev_get_drvinfo,
1892 .get_settings = netdev_get_settings,
1893 .set_settings = netdev_set_settings,
1894 .nway_reset = netdev_nway_reset,
1895 .get_link = netdev_get_link,
1896 .get_msglevel = netdev_get_msglevel,
1897 .set_msglevel = netdev_set_msglevel,
1898 .get_sg = ethtool_op_get_sg,
1899 .get_tx_csum = ethtool_op_get_tx_csum,
1900};
1901
1902static int mii_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
1903{
1904 struct netdev_private *np = netdev_priv(dev);
1905 int rc;
1906
1907 if (!netif_running(dev))
1908 return -EINVAL;
1909
1910 spin_lock_irq(&np->lock);
1911 rc = generic_mii_ioctl(&np->mii, if_mii(rq), cmd, NULL);
1912 spin_unlock_irq(&np->lock);
1913
1914 return rc;
1915}
1916
1917
1918static int netdev_close(struct net_device *dev)
1919{
1920 struct netdev_private *np = netdev_priv(dev);
1921 void __iomem *ioaddr = np->mem;
1922 int i;
1923
1924 netif_stop_queue(dev);
1925
1926 /* Disable interrupts by clearing the interrupt mask. */
1927 iowrite32(0x0000, ioaddr + IMR);
1928
1929 /* Stop the chip's Tx and Rx processes. */
1930 stop_nic_rxtx(ioaddr, 0);
1931
1932 del_timer_sync(&np->timer);
1933 del_timer_sync(&np->reset_timer);
1934
1935 free_irq(dev->irq, dev);
1936
1937 /* Free all the skbuffs in the Rx queue. */
1938 for (i = 0; i < RX_RING_SIZE; i++) {
1939 struct sk_buff *skb = np->rx_ring[i].skbuff;
1940
1941 np->rx_ring[i].status = 0;
1942 if (skb) {
1943 pci_unmap_single(np->pci_dev, np->rx_ring[i].buffer,
1944 np->rx_buf_sz, PCI_DMA_FROMDEVICE);
1945 dev_kfree_skb(skb);
1946 np->rx_ring[i].skbuff = NULL;
1947 }
1948 }
1949
1950 for (i = 0; i < TX_RING_SIZE; i++) {
1951 struct sk_buff *skb = np->tx_ring[i].skbuff;
1952
1953 if (skb) {
1954 pci_unmap_single(np->pci_dev, np->tx_ring[i].buffer,
1955 skb->len, PCI_DMA_TODEVICE);
1956 dev_kfree_skb(skb);
1957 np->tx_ring[i].skbuff = NULL;
1958 }
1959 }
1960
1961 return 0;
1962}
1963
1964static struct pci_device_id fealnx_pci_tbl[] = {
1965 {0x1516, 0x0800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1966 {0x1516, 0x0803, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
1967 {0x1516, 0x0891, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
1968 {} /* terminate list */
1969};
1970MODULE_DEVICE_TABLE(pci, fealnx_pci_tbl);
1971
1972
1973static struct pci_driver fealnx_driver = {
1974 .name = "fealnx",
1975 .id_table = fealnx_pci_tbl,
1976 .probe = fealnx_init_one,
1977 .remove = __devexit_p(fealnx_remove_one),
1978};
1979
1980static int __init fealnx_init(void)
1981{
1982/* when a module, this is printed whether or not devices are found in probe */
1983#ifdef MODULE
1984 printk(version);
1985#endif
1986
1987 return pci_module_init(&fealnx_driver);
1988}
1989
1990static void __exit fealnx_exit(void)
1991{
1992 pci_unregister_driver(&fealnx_driver);
1993}
1994
1995module_init(fealnx_init);
1996module_exit(fealnx_exit);
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