1 /* tulip_core.c: A DEC 21x4x-family ethernet driver for Linux.
2
3 Copyright 2000,2001 The Linux Kernel Team
4 Written/copyright 1994-2001 by Donald Becker.
5
6 This software may be used and distributed according to the terms
7 of the GNU General Public License, incorporated herein by reference.
8
9 Please submit bugs to http://bugzilla.kernel.org/ .
10 */
11
12 #define pr_fmt(fmt) "tulip: " fmt
13
14 #define DRV_NAME "tulip"
15 #ifdef CONFIG_TULIP_NAPI
16 #define DRV_VERSION "1.1.15-NAPI" /* Keep at least for test */
17 #else
18 #define DRV_VERSION "1.1.15"
19 #endif
20 #define DRV_RELDATE "Feb 27, 2007"
21
22
23 #include <linux/module.h>
24 #include <linux/pci.h>
25 #include <linux/slab.h>
26 #include "tulip.h"
27 #include <linux/init.h>
28 #include <linux/interrupt.h>
29 #include <linux/etherdevice.h>
30 #include <linux/delay.h>
31 #include <linux/mii.h>
32 #include <linux/crc32.h>
33 #include <asm/unaligned.h>
34 #include <linux/uaccess.h>
35
36 #ifdef CONFIG_SPARC
37 #include <asm/prom.h>
38 #endif
39
40 static char version[] =
41 "Linux Tulip driver version " DRV_VERSION " (" DRV_RELDATE ")\n";
42
43 /* A few user-configurable values. */
44
45 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
46 static unsigned int max_interrupt_work = 25;
47
48 #define MAX_UNITS 8
49 /* Used to pass the full-duplex flag, etc. */
50 static int full_duplex[MAX_UNITS];
51 static int options[MAX_UNITS];
52 static int mtu[MAX_UNITS]; /* Jumbo MTU for interfaces. */
53
54 /* The possible media types that can be set in options[] are: */
55 const char * const medianame[32] = {
56 "10baseT", "10base2", "AUI", "100baseTx",
57 "10baseT-FDX", "100baseTx-FDX", "100baseT4", "100baseFx",
58 "100baseFx-FDX", "MII 10baseT", "MII 10baseT-FDX", "MII",
59 "10baseT(forced)", "MII 100baseTx", "MII 100baseTx-FDX", "MII 100baseT4",
60 "MII 100baseFx-HDX", "MII 100baseFx-FDX", "Home-PNA 1Mbps", "Invalid-19",
61 "","","","", "","","","", "","","","Transceiver reset",
62 };
63
64 /* Set the copy breakpoint for the copy-only-tiny-buffer Rx structure. */
65 #if defined(__alpha__) || defined(__arm__) || defined(__hppa__) || \
66 defined(CONFIG_SPARC) || defined(__ia64__) || \
67 defined(__sh__) || defined(__mips__)
68 static int rx_copybreak = 1518;
69 #else
70 static int rx_copybreak = 100;
71 #endif
72
73 /*
74 Set the bus performance register.
75 Typical: Set 16 longword cache alignment, no burst limit.
76 Cache alignment bits 15:14 Burst length 13:8
77 0000 No alignment 0x00000000 unlimited 0800 8 longwords
78 4000 8 longwords 0100 1 longword 1000 16 longwords
79 8000 16 longwords 0200 2 longwords 2000 32 longwords
80 C000 32 longwords 0400 4 longwords
81 Warning: many older 486 systems are broken and require setting 0x00A04800
82 8 longword cache alignment, 8 longword burst.
83 ToDo: Non-Intel setting could be better.
84 */
85
86 #if defined(__alpha__) || defined(__ia64__)
87 static int csr0 = 0x01A00000 | 0xE000;
88 #elif defined(__i386__) || defined(__powerpc__) || defined(__x86_64__)
89 static int csr0 = 0x01A00000 | 0x8000;
90 #elif defined(CONFIG_SPARC) || defined(__hppa__)
91 /* The UltraSparc PCI controllers will disconnect at every 64-byte
92 * crossing anyways so it makes no sense to tell Tulip to burst
93 * any more than that.
94 */
95 static int csr0 = 0x01A00000 | 0x9000;
96 #elif defined(__arm__) || defined(__sh__)
97 static int csr0 = 0x01A00000 | 0x4800;
98 #elif defined(__mips__)
99 static int csr0 = 0x00200000 | 0x4000;
100 #else
101 static int csr0;
102 #endif
103
104 /* Operational parameters that usually are not changed. */
105 /* Time in jiffies before concluding the transmitter is hung. */
106 #define TX_TIMEOUT (4*HZ)
107
108
109 MODULE_AUTHOR("The Linux Kernel Team");
110 MODULE_DESCRIPTION("Digital 21*4* Tulip ethernet driver");
111 MODULE_LICENSE("GPL");
112 MODULE_VERSION(DRV_VERSION);
113 module_param(tulip_debug, int, 0);
114 module_param(max_interrupt_work, int, 0);
115 module_param(rx_copybreak, int, 0);
116 module_param(csr0, int, 0);
117 module_param_array(options, int, NULL, 0);
118 module_param_array(full_duplex, int, NULL, 0);
119
120 #ifdef TULIP_DEBUG
121 int tulip_debug = TULIP_DEBUG;
122 #else
123 int tulip_debug = 1;
124 #endif
125
tulip_timer(struct timer_list * t)126 static void tulip_timer(struct timer_list *t)
127 {
128 struct tulip_private *tp = from_timer(tp, t, timer);
129 struct net_device *dev = tp->dev;
130
131 if (netif_running(dev))
132 schedule_work(&tp->media_work);
133 }
134
135 /*
136 * This table use during operation for capabilities and media timer.
137 *
138 * It is indexed via the values in 'enum chips'
139 */
140
141 const struct tulip_chip_table tulip_tbl[] = {
142 { }, /* placeholder for array, slot unused currently */
143 { }, /* placeholder for array, slot unused currently */
144
145 /* DC21140 */
146 { "Digital DS21140 Tulip", 128, 0x0001ebef,
147 HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | HAS_PCI_MWI, tulip_timer,
148 tulip_media_task },
149
150 /* DC21142, DC21143 */
151 { "Digital DS21142/43 Tulip", 128, 0x0801fbff,
152 HAS_MII | HAS_MEDIA_TABLE | ALWAYS_CHECK_MII | HAS_ACPI | HAS_NWAY
153 | HAS_INTR_MITIGATION | HAS_PCI_MWI, tulip_timer, t21142_media_task },
154
155 /* LC82C168 */
156 { "Lite-On 82c168 PNIC", 256, 0x0001fbef,
157 HAS_MII | HAS_PNICNWAY, pnic_timer, },
158
159 /* MX98713 */
160 { "Macronix 98713 PMAC", 128, 0x0001ebef,
161 HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, mxic_timer, },
162
163 /* MX98715 */
164 { "Macronix 98715 PMAC", 256, 0x0001ebef,
165 HAS_MEDIA_TABLE, mxic_timer, },
166
167 /* MX98725 */
168 { "Macronix 98725 PMAC", 256, 0x0001ebef,
169 HAS_MEDIA_TABLE, mxic_timer, },
170
171 /* AX88140 */
172 { "ASIX AX88140", 128, 0x0001fbff,
173 HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | MC_HASH_ONLY
174 | IS_ASIX, tulip_timer, tulip_media_task },
175
176 /* PNIC2 */
177 { "Lite-On PNIC-II", 256, 0x0801fbff,
178 HAS_MII | HAS_NWAY | HAS_8023X | HAS_PCI_MWI, pnic2_timer, },
179
180 /* COMET */
181 { "ADMtek Comet", 256, 0x0001abef,
182 HAS_MII | MC_HASH_ONLY | COMET_MAC_ADDR, comet_timer, },
183
184 /* COMPEX9881 */
185 { "Compex 9881 PMAC", 128, 0x0001ebef,
186 HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM, mxic_timer, },
187
188 /* I21145 */
189 { "Intel DS21145 Tulip", 128, 0x0801fbff,
190 HAS_MII | HAS_MEDIA_TABLE | ALWAYS_CHECK_MII | HAS_ACPI
191 | HAS_NWAY | HAS_PCI_MWI, tulip_timer, tulip_media_task },
192
193 /* DM910X */
194 #ifdef CONFIG_TULIP_DM910X
195 { "Davicom DM9102/DM9102A", 128, 0x0001ebef,
196 HAS_MII | HAS_MEDIA_TABLE | CSR12_IN_SROM | HAS_ACPI,
197 tulip_timer, tulip_media_task },
198 #else
199 { NULL },
200 #endif
201
202 /* RS7112 */
203 { "Conexant LANfinity", 256, 0x0001ebef,
204 HAS_MII | HAS_ACPI, tulip_timer, tulip_media_task },
205
206 };
207
208
209 static const struct pci_device_id tulip_pci_tbl[] = {
210 { 0x1011, 0x0009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DC21140 },
211 { 0x1011, 0x0019, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DC21143 },
212 { 0x11AD, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, LC82C168 },
213 { 0x10d9, 0x0512, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98713 },
214 { 0x10d9, 0x0531, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98715 },
215 /* { 0x10d9, 0x0531, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98725 },*/
216 { 0x125B, 0x1400, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AX88140 },
217 { 0x11AD, 0xc115, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PNIC2 },
218 { 0x1317, 0x0981, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
219 { 0x1317, 0x0985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
220 { 0x1317, 0x1985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
221 { 0x1317, 0x9511, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
222 { 0x13D1, 0xAB02, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
223 { 0x13D1, 0xAB03, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
224 { 0x13D1, 0xAB08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
225 { 0x104A, 0x0981, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
226 { 0x104A, 0x2774, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
227 { 0x1259, 0xa120, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
228 { 0x11F6, 0x9881, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMPEX9881 },
229 { 0x8086, 0x0039, PCI_ANY_ID, PCI_ANY_ID, 0, 0, I21145 },
230 #ifdef CONFIG_TULIP_DM910X
231 { 0x1282, 0x9100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DM910X },
232 { 0x1282, 0x9102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DM910X },
233 #endif
234 { 0x1113, 0x1216, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
235 { 0x1113, 0x1217, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MX98715 },
236 { 0x1113, 0x9511, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
237 { 0x1186, 0x1541, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
238 { 0x1186, 0x1561, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
239 { 0x1186, 0x1591, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
240 { 0x14f1, 0x1803, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CONEXANT },
241 { 0x1626, 0x8410, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
242 { 0x1737, 0xAB09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
243 { 0x1737, 0xAB08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
244 { 0x17B3, 0xAB08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
245 { 0x10b7, 0x9300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, /* 3Com 3CSOHO100B-TX */
246 { 0x14ea, 0xab08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, /* Planex FNW-3602-TX */
247 { 0x1414, 0x0001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET }, /* Microsoft MN-120 */
248 { 0x1414, 0x0002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, COMET },
249 { } /* terminate list */
250 };
251 MODULE_DEVICE_TABLE(pci, tulip_pci_tbl);
252
253
254 /* A full-duplex map for media types. */
255 const char tulip_media_cap[32] =
256 {0,0,0,16, 3,19,16,24, 27,4,7,5, 0,20,23,20, 28,31,0,0, };
257
258 static void tulip_tx_timeout(struct net_device *dev);
259 static void tulip_init_ring(struct net_device *dev);
260 static void tulip_free_ring(struct net_device *dev);
261 static netdev_tx_t tulip_start_xmit(struct sk_buff *skb,
262 struct net_device *dev);
263 static int tulip_open(struct net_device *dev);
264 static int tulip_close(struct net_device *dev);
265 static void tulip_up(struct net_device *dev);
266 static void tulip_down(struct net_device *dev);
267 static struct net_device_stats *tulip_get_stats(struct net_device *dev);
268 static int private_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
269 static void set_rx_mode(struct net_device *dev);
270 static void tulip_set_wolopts(struct pci_dev *pdev, u32 wolopts);
271 #ifdef CONFIG_NET_POLL_CONTROLLER
272 static void poll_tulip(struct net_device *dev);
273 #endif
274
tulip_set_power_state(struct tulip_private * tp,int sleep,int snooze)275 static void tulip_set_power_state (struct tulip_private *tp,
276 int sleep, int snooze)
277 {
278 if (tp->flags & HAS_ACPI) {
279 u32 tmp, newtmp;
280 pci_read_config_dword (tp->pdev, CFDD, &tmp);
281 newtmp = tmp & ~(CFDD_Sleep | CFDD_Snooze);
282 if (sleep)
283 newtmp |= CFDD_Sleep;
284 else if (snooze)
285 newtmp |= CFDD_Snooze;
286 if (tmp != newtmp)
287 pci_write_config_dword (tp->pdev, CFDD, newtmp);
288 }
289
290 }
291
292
tulip_up(struct net_device * dev)293 static void tulip_up(struct net_device *dev)
294 {
295 struct tulip_private *tp = netdev_priv(dev);
296 void __iomem *ioaddr = tp->base_addr;
297 int next_tick = 3*HZ;
298 u32 reg;
299 int i;
300
301 #ifdef CONFIG_TULIP_NAPI
302 napi_enable(&tp->napi);
303 #endif
304
305 /* Wake the chip from sleep/snooze mode. */
306 tulip_set_power_state (tp, 0, 0);
307
308 /* Disable all WOL events */
309 pci_enable_wake(tp->pdev, PCI_D3hot, 0);
310 pci_enable_wake(tp->pdev, PCI_D3cold, 0);
311 tulip_set_wolopts(tp->pdev, 0);
312
313 /* On some chip revs we must set the MII/SYM port before the reset!? */
314 if (tp->mii_cnt || (tp->mtable && tp->mtable->has_mii))
315 iowrite32(0x00040000, ioaddr + CSR6);
316
317 /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */
318 iowrite32(0x00000001, ioaddr + CSR0);
319 pci_read_config_dword(tp->pdev, PCI_COMMAND, ®); /* flush write */
320 udelay(100);
321
322 /* Deassert reset.
323 Wait the specified 50 PCI cycles after a reset by initializing
324 Tx and Rx queues and the address filter list. */
325 iowrite32(tp->csr0, ioaddr + CSR0);
326 pci_read_config_dword(tp->pdev, PCI_COMMAND, ®); /* flush write */
327 udelay(100);
328
329 if (tulip_debug > 1)
330 netdev_dbg(dev, "tulip_up(), irq==%d\n", tp->pdev->irq);
331
332 iowrite32(tp->rx_ring_dma, ioaddr + CSR3);
333 iowrite32(tp->tx_ring_dma, ioaddr + CSR4);
334 tp->cur_rx = tp->cur_tx = 0;
335 tp->dirty_rx = tp->dirty_tx = 0;
336
337 if (tp->flags & MC_HASH_ONLY) {
338 u32 addr_low = get_unaligned_le32(dev->dev_addr);
339 u32 addr_high = get_unaligned_le16(dev->dev_addr + 4);
340 if (tp->chip_id == AX88140) {
341 iowrite32(0, ioaddr + CSR13);
342 iowrite32(addr_low, ioaddr + CSR14);
343 iowrite32(1, ioaddr + CSR13);
344 iowrite32(addr_high, ioaddr + CSR14);
345 } else if (tp->flags & COMET_MAC_ADDR) {
346 iowrite32(addr_low, ioaddr + 0xA4);
347 iowrite32(addr_high, ioaddr + 0xA8);
348 iowrite32(0, ioaddr + CSR27);
349 iowrite32(0, ioaddr + CSR28);
350 }
351 } else {
352 /* This is set_rx_mode(), but without starting the transmitter. */
353 u16 *eaddrs = (u16 *)dev->dev_addr;
354 u16 *setup_frm = &tp->setup_frame[15*6];
355 dma_addr_t mapping;
356
357 /* 21140 bug: you must add the broadcast address. */
358 memset(tp->setup_frame, 0xff, sizeof(tp->setup_frame));
359 /* Fill the final entry of the table with our physical address. */
360 *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0];
361 *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1];
362 *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2];
363
364 mapping = pci_map_single(tp->pdev, tp->setup_frame,
365 sizeof(tp->setup_frame),
366 PCI_DMA_TODEVICE);
367 tp->tx_buffers[tp->cur_tx].skb = NULL;
368 tp->tx_buffers[tp->cur_tx].mapping = mapping;
369
370 /* Put the setup frame on the Tx list. */
371 tp->tx_ring[tp->cur_tx].length = cpu_to_le32(0x08000000 | 192);
372 tp->tx_ring[tp->cur_tx].buffer1 = cpu_to_le32(mapping);
373 tp->tx_ring[tp->cur_tx].status = cpu_to_le32(DescOwned);
374
375 tp->cur_tx++;
376 }
377
378 tp->saved_if_port = dev->if_port;
379 if (dev->if_port == 0)
380 dev->if_port = tp->default_port;
381
382 /* Allow selecting a default media. */
383 i = 0;
384 if (tp->mtable == NULL)
385 goto media_picked;
386 if (dev->if_port) {
387 int looking_for = tulip_media_cap[dev->if_port] & MediaIsMII ? 11 :
388 (dev->if_port == 12 ? 0 : dev->if_port);
389 for (i = 0; i < tp->mtable->leafcount; i++)
390 if (tp->mtable->mleaf[i].media == looking_for) {
391 dev_info(&dev->dev,
392 "Using user-specified media %s\n",
393 medianame[dev->if_port]);
394 goto media_picked;
395 }
396 }
397 if ((tp->mtable->defaultmedia & 0x0800) == 0) {
398 int looking_for = tp->mtable->defaultmedia & MEDIA_MASK;
399 for (i = 0; i < tp->mtable->leafcount; i++)
400 if (tp->mtable->mleaf[i].media == looking_for) {
401 dev_info(&dev->dev,
402 "Using EEPROM-set media %s\n",
403 medianame[looking_for]);
404 goto media_picked;
405 }
406 }
407 /* Start sensing first non-full-duplex media. */
408 for (i = tp->mtable->leafcount - 1;
409 (tulip_media_cap[tp->mtable->mleaf[i].media] & MediaAlwaysFD) && i > 0; i--)
410 ;
411 media_picked:
412
413 tp->csr6 = 0;
414 tp->cur_index = i;
415 tp->nwayset = 0;
416
417 if (dev->if_port) {
418 if (tp->chip_id == DC21143 &&
419 (tulip_media_cap[dev->if_port] & MediaIsMII)) {
420 /* We must reset the media CSRs when we force-select MII mode. */
421 iowrite32(0x0000, ioaddr + CSR13);
422 iowrite32(0x0000, ioaddr + CSR14);
423 iowrite32(0x0008, ioaddr + CSR15);
424 }
425 tulip_select_media(dev, 1);
426 } else if (tp->chip_id == DC21142) {
427 if (tp->mii_cnt) {
428 tulip_select_media(dev, 1);
429 if (tulip_debug > 1)
430 dev_info(&dev->dev,
431 "Using MII transceiver %d, status %04x\n",
432 tp->phys[0],
433 tulip_mdio_read(dev, tp->phys[0], 1));
434 iowrite32(csr6_mask_defstate, ioaddr + CSR6);
435 tp->csr6 = csr6_mask_hdcap;
436 dev->if_port = 11;
437 iowrite32(0x0000, ioaddr + CSR13);
438 iowrite32(0x0000, ioaddr + CSR14);
439 } else
440 t21142_start_nway(dev);
441 } else if (tp->chip_id == PNIC2) {
442 /* for initial startup advertise 10/100 Full and Half */
443 tp->sym_advertise = 0x01E0;
444 /* enable autonegotiate end interrupt */
445 iowrite32(ioread32(ioaddr+CSR5)| 0x00008010, ioaddr + CSR5);
446 iowrite32(ioread32(ioaddr+CSR7)| 0x00008010, ioaddr + CSR7);
447 pnic2_start_nway(dev);
448 } else if (tp->chip_id == LC82C168 && ! tp->medialock) {
449 if (tp->mii_cnt) {
450 dev->if_port = 11;
451 tp->csr6 = 0x814C0000 | (tp->full_duplex ? 0x0200 : 0);
452 iowrite32(0x0001, ioaddr + CSR15);
453 } else if (ioread32(ioaddr + CSR5) & TPLnkPass)
454 pnic_do_nway(dev);
455 else {
456 /* Start with 10mbps to do autonegotiation. */
457 iowrite32(0x32, ioaddr + CSR12);
458 tp->csr6 = 0x00420000;
459 iowrite32(0x0001B078, ioaddr + 0xB8);
460 iowrite32(0x0201B078, ioaddr + 0xB8);
461 next_tick = 1*HZ;
462 }
463 } else if ((tp->chip_id == MX98713 || tp->chip_id == COMPEX9881) &&
464 ! tp->medialock) {
465 dev->if_port = 0;
466 tp->csr6 = 0x01880000 | (tp->full_duplex ? 0x0200 : 0);
467 iowrite32(0x0f370000 | ioread16(ioaddr + 0x80), ioaddr + 0x80);
468 } else if (tp->chip_id == MX98715 || tp->chip_id == MX98725) {
469 /* Provided by BOLO, Macronix - 12/10/1998. */
470 dev->if_port = 0;
471 tp->csr6 = 0x01a80200;
472 iowrite32(0x0f370000 | ioread16(ioaddr + 0x80), ioaddr + 0x80);
473 iowrite32(0x11000 | ioread16(ioaddr + 0xa0), ioaddr + 0xa0);
474 } else if (tp->chip_id == COMET || tp->chip_id == CONEXANT) {
475 /* Enable automatic Tx underrun recovery. */
476 iowrite32(ioread32(ioaddr + 0x88) | 1, ioaddr + 0x88);
477 dev->if_port = tp->mii_cnt ? 11 : 0;
478 tp->csr6 = 0x00040000;
479 } else if (tp->chip_id == AX88140) {
480 tp->csr6 = tp->mii_cnt ? 0x00040100 : 0x00000100;
481 } else
482 tulip_select_media(dev, 1);
483
484 /* Start the chip's Tx to process setup frame. */
485 tulip_stop_rxtx(tp);
486 barrier();
487 udelay(5);
488 iowrite32(tp->csr6 | TxOn, ioaddr + CSR6);
489
490 /* Enable interrupts by setting the interrupt mask. */
491 iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR5);
492 iowrite32(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
493 tulip_start_rxtx(tp);
494 iowrite32(0, ioaddr + CSR2); /* Rx poll demand */
495
496 if (tulip_debug > 2) {
497 netdev_dbg(dev, "Done tulip_up(), CSR0 %08x, CSR5 %08x CSR6 %08x\n",
498 ioread32(ioaddr + CSR0),
499 ioread32(ioaddr + CSR5),
500 ioread32(ioaddr + CSR6));
501 }
502
503 /* Set the timer to switch to check for link beat and perhaps switch
504 to an alternate media type. */
505 tp->timer.expires = RUN_AT(next_tick);
506 add_timer(&tp->timer);
507 #ifdef CONFIG_TULIP_NAPI
508 timer_setup(&tp->oom_timer, oom_timer, 0);
509 #endif
510 }
511
512 static int
tulip_open(struct net_device * dev)513 tulip_open(struct net_device *dev)
514 {
515 struct tulip_private *tp = netdev_priv(dev);
516 int retval;
517
518 tulip_init_ring (dev);
519
520 retval = request_irq(tp->pdev->irq, tulip_interrupt, IRQF_SHARED,
521 dev->name, dev);
522 if (retval)
523 goto free_ring;
524
525 tulip_up (dev);
526
527 netif_start_queue (dev);
528
529 return 0;
530
531 free_ring:
532 tulip_free_ring (dev);
533 return retval;
534 }
535
536
tulip_tx_timeout(struct net_device * dev)537 static void tulip_tx_timeout(struct net_device *dev)
538 {
539 struct tulip_private *tp = netdev_priv(dev);
540 void __iomem *ioaddr = tp->base_addr;
541 unsigned long flags;
542
543 spin_lock_irqsave (&tp->lock, flags);
544
545 if (tulip_media_cap[dev->if_port] & MediaIsMII) {
546 /* Do nothing -- the media monitor should handle this. */
547 if (tulip_debug > 1)
548 dev_warn(&dev->dev,
549 "Transmit timeout using MII device\n");
550 } else if (tp->chip_id == DC21140 || tp->chip_id == DC21142 ||
551 tp->chip_id == MX98713 || tp->chip_id == COMPEX9881 ||
552 tp->chip_id == DM910X) {
553 dev_warn(&dev->dev,
554 "21140 transmit timed out, status %08x, SIA %08x %08x %08x %08x, resetting...\n",
555 ioread32(ioaddr + CSR5), ioread32(ioaddr + CSR12),
556 ioread32(ioaddr + CSR13), ioread32(ioaddr + CSR14),
557 ioread32(ioaddr + CSR15));
558 tp->timeout_recovery = 1;
559 schedule_work(&tp->media_work);
560 goto out_unlock;
561 } else if (tp->chip_id == PNIC2) {
562 dev_warn(&dev->dev,
563 "PNIC2 transmit timed out, status %08x, CSR6/7 %08x / %08x CSR12 %08x, resetting...\n",
564 (int)ioread32(ioaddr + CSR5),
565 (int)ioread32(ioaddr + CSR6),
566 (int)ioread32(ioaddr + CSR7),
567 (int)ioread32(ioaddr + CSR12));
568 } else {
569 dev_warn(&dev->dev,
570 "Transmit timed out, status %08x, CSR12 %08x, resetting...\n",
571 ioread32(ioaddr + CSR5), ioread32(ioaddr + CSR12));
572 dev->if_port = 0;
573 }
574
575 #if defined(way_too_many_messages)
576 if (tulip_debug > 3) {
577 int i;
578 for (i = 0; i < RX_RING_SIZE; i++) {
579 u8 *buf = (u8 *)(tp->rx_ring[i].buffer1);
580 int j;
581 printk(KERN_DEBUG
582 "%2d: %08x %08x %08x %08x %02x %02x %02x\n",
583 i,
584 (unsigned int)tp->rx_ring[i].status,
585 (unsigned int)tp->rx_ring[i].length,
586 (unsigned int)tp->rx_ring[i].buffer1,
587 (unsigned int)tp->rx_ring[i].buffer2,
588 buf[0], buf[1], buf[2]);
589 for (j = 0; ((j < 1600) && buf[j] != 0xee); j++)
590 if (j < 100)
591 pr_cont(" %02x", buf[j]);
592 pr_cont(" j=%d\n", j);
593 }
594 printk(KERN_DEBUG " Rx ring %p: ", tp->rx_ring);
595 for (i = 0; i < RX_RING_SIZE; i++)
596 pr_cont(" %08x", (unsigned int)tp->rx_ring[i].status);
597 printk(KERN_DEBUG " Tx ring %p: ", tp->tx_ring);
598 for (i = 0; i < TX_RING_SIZE; i++)
599 pr_cont(" %08x", (unsigned int)tp->tx_ring[i].status);
600 pr_cont("\n");
601 }
602 #endif
603
604 tulip_tx_timeout_complete(tp, ioaddr);
605
606 out_unlock:
607 spin_unlock_irqrestore (&tp->lock, flags);
608 netif_trans_update(dev); /* prevent tx timeout */
609 netif_wake_queue (dev);
610 }
611
612
613 /* Initialize the Rx and Tx rings, along with various 'dev' bits. */
tulip_init_ring(struct net_device * dev)614 static void tulip_init_ring(struct net_device *dev)
615 {
616 struct tulip_private *tp = netdev_priv(dev);
617 int i;
618
619 tp->susp_rx = 0;
620 tp->ttimer = 0;
621 tp->nir = 0;
622
623 for (i = 0; i < RX_RING_SIZE; i++) {
624 tp->rx_ring[i].status = 0x00000000;
625 tp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ);
626 tp->rx_ring[i].buffer2 = cpu_to_le32(tp->rx_ring_dma + sizeof(struct tulip_rx_desc) * (i + 1));
627 tp->rx_buffers[i].skb = NULL;
628 tp->rx_buffers[i].mapping = 0;
629 }
630 /* Mark the last entry as wrapping the ring. */
631 tp->rx_ring[i-1].length = cpu_to_le32(PKT_BUF_SZ | DESC_RING_WRAP);
632 tp->rx_ring[i-1].buffer2 = cpu_to_le32(tp->rx_ring_dma);
633
634 for (i = 0; i < RX_RING_SIZE; i++) {
635 dma_addr_t mapping;
636
637 /* Note the receive buffer must be longword aligned.
638 netdev_alloc_skb() provides 16 byte alignment. But do *not*
639 use skb_reserve() to align the IP header! */
640 struct sk_buff *skb = netdev_alloc_skb(dev, PKT_BUF_SZ);
641 tp->rx_buffers[i].skb = skb;
642 if (skb == NULL)
643 break;
644 mapping = pci_map_single(tp->pdev, skb->data,
645 PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
646 tp->rx_buffers[i].mapping = mapping;
647 tp->rx_ring[i].status = cpu_to_le32(DescOwned); /* Owned by Tulip chip */
648 tp->rx_ring[i].buffer1 = cpu_to_le32(mapping);
649 }
650 tp->dirty_rx = (unsigned int)(i - RX_RING_SIZE);
651
652 /* The Tx buffer descriptor is filled in as needed, but we
653 do need to clear the ownership bit. */
654 for (i = 0; i < TX_RING_SIZE; i++) {
655 tp->tx_buffers[i].skb = NULL;
656 tp->tx_buffers[i].mapping = 0;
657 tp->tx_ring[i].status = 0x00000000;
658 tp->tx_ring[i].buffer2 = cpu_to_le32(tp->tx_ring_dma + sizeof(struct tulip_tx_desc) * (i + 1));
659 }
660 tp->tx_ring[i-1].buffer2 = cpu_to_le32(tp->tx_ring_dma);
661 }
662
663 static netdev_tx_t
tulip_start_xmit(struct sk_buff * skb,struct net_device * dev)664 tulip_start_xmit(struct sk_buff *skb, struct net_device *dev)
665 {
666 struct tulip_private *tp = netdev_priv(dev);
667 int entry;
668 u32 flag;
669 dma_addr_t mapping;
670 unsigned long flags;
671
672 spin_lock_irqsave(&tp->lock, flags);
673
674 /* Calculate the next Tx descriptor entry. */
675 entry = tp->cur_tx % TX_RING_SIZE;
676
677 tp->tx_buffers[entry].skb = skb;
678 mapping = pci_map_single(tp->pdev, skb->data,
679 skb->len, PCI_DMA_TODEVICE);
680 tp->tx_buffers[entry].mapping = mapping;
681 tp->tx_ring[entry].buffer1 = cpu_to_le32(mapping);
682
683 if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE/2) {/* Typical path */
684 flag = 0x60000000; /* No interrupt */
685 } else if (tp->cur_tx - tp->dirty_tx == TX_RING_SIZE/2) {
686 flag = 0xe0000000; /* Tx-done intr. */
687 } else if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE - 2) {
688 flag = 0x60000000; /* No Tx-done intr. */
689 } else { /* Leave room for set_rx_mode() to fill entries. */
690 flag = 0xe0000000; /* Tx-done intr. */
691 netif_stop_queue(dev);
692 }
693 if (entry == TX_RING_SIZE-1)
694 flag = 0xe0000000 | DESC_RING_WRAP;
695
696 tp->tx_ring[entry].length = cpu_to_le32(skb->len | flag);
697 /* if we were using Transmit Automatic Polling, we would need a
698 * wmb() here. */
699 tp->tx_ring[entry].status = cpu_to_le32(DescOwned);
700 wmb();
701
702 tp->cur_tx++;
703
704 /* Trigger an immediate transmit demand. */
705 iowrite32(0, tp->base_addr + CSR1);
706
707 spin_unlock_irqrestore(&tp->lock, flags);
708
709 return NETDEV_TX_OK;
710 }
711
tulip_clean_tx_ring(struct tulip_private * tp)712 static void tulip_clean_tx_ring(struct tulip_private *tp)
713 {
714 unsigned int dirty_tx;
715
716 for (dirty_tx = tp->dirty_tx ; tp->cur_tx - dirty_tx > 0;
717 dirty_tx++) {
718 int entry = dirty_tx % TX_RING_SIZE;
719 int status = le32_to_cpu(tp->tx_ring[entry].status);
720
721 if (status < 0) {
722 tp->dev->stats.tx_errors++; /* It wasn't Txed */
723 tp->tx_ring[entry].status = 0;
724 }
725
726 /* Check for Tx filter setup frames. */
727 if (tp->tx_buffers[entry].skb == NULL) {
728 /* test because dummy frames not mapped */
729 if (tp->tx_buffers[entry].mapping)
730 pci_unmap_single(tp->pdev,
731 tp->tx_buffers[entry].mapping,
732 sizeof(tp->setup_frame),
733 PCI_DMA_TODEVICE);
734 continue;
735 }
736
737 pci_unmap_single(tp->pdev, tp->tx_buffers[entry].mapping,
738 tp->tx_buffers[entry].skb->len,
739 PCI_DMA_TODEVICE);
740
741 /* Free the original skb. */
742 dev_kfree_skb_irq(tp->tx_buffers[entry].skb);
743 tp->tx_buffers[entry].skb = NULL;
744 tp->tx_buffers[entry].mapping = 0;
745 }
746 }
747
tulip_down(struct net_device * dev)748 static void tulip_down (struct net_device *dev)
749 {
750 struct tulip_private *tp = netdev_priv(dev);
751 void __iomem *ioaddr = tp->base_addr;
752 unsigned long flags;
753
754 cancel_work_sync(&tp->media_work);
755
756 #ifdef CONFIG_TULIP_NAPI
757 napi_disable(&tp->napi);
758 #endif
759
760 del_timer_sync (&tp->timer);
761 #ifdef CONFIG_TULIP_NAPI
762 del_timer_sync (&tp->oom_timer);
763 #endif
764 spin_lock_irqsave (&tp->lock, flags);
765
766 /* Disable interrupts by clearing the interrupt mask. */
767 iowrite32 (0x00000000, ioaddr + CSR7);
768
769 /* Stop the Tx and Rx processes. */
770 tulip_stop_rxtx(tp);
771
772 /* prepare receive buffers */
773 tulip_refill_rx(dev);
774
775 /* release any unconsumed transmit buffers */
776 tulip_clean_tx_ring(tp);
777
778 if (ioread32(ioaddr + CSR6) != 0xffffffff)
779 dev->stats.rx_missed_errors += ioread32(ioaddr + CSR8) & 0xffff;
780
781 spin_unlock_irqrestore (&tp->lock, flags);
782
783 timer_setup(&tp->timer, tulip_tbl[tp->chip_id].media_timer, 0);
784
785 dev->if_port = tp->saved_if_port;
786
787 /* Leave the driver in snooze, not sleep, mode. */
788 tulip_set_power_state (tp, 0, 1);
789 }
790
tulip_free_ring(struct net_device * dev)791 static void tulip_free_ring (struct net_device *dev)
792 {
793 struct tulip_private *tp = netdev_priv(dev);
794 int i;
795
796 /* Free all the skbuffs in the Rx queue. */
797 for (i = 0; i < RX_RING_SIZE; i++) {
798 struct sk_buff *skb = tp->rx_buffers[i].skb;
799 dma_addr_t mapping = tp->rx_buffers[i].mapping;
800
801 tp->rx_buffers[i].skb = NULL;
802 tp->rx_buffers[i].mapping = 0;
803
804 tp->rx_ring[i].status = 0; /* Not owned by Tulip chip. */
805 tp->rx_ring[i].length = 0;
806 /* An invalid address. */
807 tp->rx_ring[i].buffer1 = cpu_to_le32(0xBADF00D0);
808 if (skb) {
809 pci_unmap_single(tp->pdev, mapping, PKT_BUF_SZ,
810 PCI_DMA_FROMDEVICE);
811 dev_kfree_skb (skb);
812 }
813 }
814
815 for (i = 0; i < TX_RING_SIZE; i++) {
816 struct sk_buff *skb = tp->tx_buffers[i].skb;
817
818 if (skb != NULL) {
819 pci_unmap_single(tp->pdev, tp->tx_buffers[i].mapping,
820 skb->len, PCI_DMA_TODEVICE);
821 dev_kfree_skb (skb);
822 }
823 tp->tx_buffers[i].skb = NULL;
824 tp->tx_buffers[i].mapping = 0;
825 }
826 }
827
tulip_close(struct net_device * dev)828 static int tulip_close (struct net_device *dev)
829 {
830 struct tulip_private *tp = netdev_priv(dev);
831 void __iomem *ioaddr = tp->base_addr;
832
833 netif_stop_queue (dev);
834
835 tulip_down (dev);
836
837 if (tulip_debug > 1)
838 netdev_dbg(dev, "Shutting down ethercard, status was %02x\n",
839 ioread32 (ioaddr + CSR5));
840
841 free_irq (tp->pdev->irq, dev);
842
843 tulip_free_ring (dev);
844
845 return 0;
846 }
847
tulip_get_stats(struct net_device * dev)848 static struct net_device_stats *tulip_get_stats(struct net_device *dev)
849 {
850 struct tulip_private *tp = netdev_priv(dev);
851 void __iomem *ioaddr = tp->base_addr;
852
853 if (netif_running(dev)) {
854 unsigned long flags;
855
856 spin_lock_irqsave (&tp->lock, flags);
857
858 dev->stats.rx_missed_errors += ioread32(ioaddr + CSR8) & 0xffff;
859
860 spin_unlock_irqrestore(&tp->lock, flags);
861 }
862
863 return &dev->stats;
864 }
865
866
tulip_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * info)867 static void tulip_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
868 {
869 struct tulip_private *np = netdev_priv(dev);
870 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
871 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
872 strlcpy(info->bus_info, pci_name(np->pdev), sizeof(info->bus_info));
873 }
874
875
tulip_ethtool_set_wol(struct net_device * dev,struct ethtool_wolinfo * wolinfo)876 static int tulip_ethtool_set_wol(struct net_device *dev,
877 struct ethtool_wolinfo *wolinfo)
878 {
879 struct tulip_private *tp = netdev_priv(dev);
880
881 if (wolinfo->wolopts & (~tp->wolinfo.supported))
882 return -EOPNOTSUPP;
883
884 tp->wolinfo.wolopts = wolinfo->wolopts;
885 device_set_wakeup_enable(&tp->pdev->dev, tp->wolinfo.wolopts);
886 return 0;
887 }
888
tulip_ethtool_get_wol(struct net_device * dev,struct ethtool_wolinfo * wolinfo)889 static void tulip_ethtool_get_wol(struct net_device *dev,
890 struct ethtool_wolinfo *wolinfo)
891 {
892 struct tulip_private *tp = netdev_priv(dev);
893
894 wolinfo->supported = tp->wolinfo.supported;
895 wolinfo->wolopts = tp->wolinfo.wolopts;
896 return;
897 }
898
899
900 static const struct ethtool_ops ops = {
901 .get_drvinfo = tulip_get_drvinfo,
902 .set_wol = tulip_ethtool_set_wol,
903 .get_wol = tulip_ethtool_get_wol,
904 };
905
906 /* Provide ioctl() calls to examine the MII xcvr state. */
private_ioctl(struct net_device * dev,struct ifreq * rq,int cmd)907 static int private_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
908 {
909 struct tulip_private *tp = netdev_priv(dev);
910 void __iomem *ioaddr = tp->base_addr;
911 struct mii_ioctl_data *data = if_mii(rq);
912 const unsigned int phy_idx = 0;
913 int phy = tp->phys[phy_idx] & 0x1f;
914 unsigned int regnum = data->reg_num;
915
916 switch (cmd) {
917 case SIOCGMIIPHY: /* Get address of MII PHY in use. */
918 if (tp->mii_cnt)
919 data->phy_id = phy;
920 else if (tp->flags & HAS_NWAY)
921 data->phy_id = 32;
922 else if (tp->chip_id == COMET)
923 data->phy_id = 1;
924 else
925 return -ENODEV;
926 /* Fall through */
927
928 case SIOCGMIIREG: /* Read MII PHY register. */
929 if (data->phy_id == 32 && (tp->flags & HAS_NWAY)) {
930 int csr12 = ioread32 (ioaddr + CSR12);
931 int csr14 = ioread32 (ioaddr + CSR14);
932 switch (regnum) {
933 case 0:
934 if (((csr14<<5) & 0x1000) ||
935 (dev->if_port == 5 && tp->nwayset))
936 data->val_out = 0x1000;
937 else
938 data->val_out = (tulip_media_cap[dev->if_port]&MediaIs100 ? 0x2000 : 0)
939 | (tulip_media_cap[dev->if_port]&MediaIsFD ? 0x0100 : 0);
940 break;
941 case 1:
942 data->val_out =
943 0x1848 +
944 ((csr12&0x7000) == 0x5000 ? 0x20 : 0) +
945 ((csr12&0x06) == 6 ? 0 : 4);
946 data->val_out |= 0x6048;
947 break;
948 case 4:
949 /* Advertised value, bogus 10baseTx-FD value from CSR6. */
950 data->val_out =
951 ((ioread32(ioaddr + CSR6) >> 3) & 0x0040) +
952 ((csr14 >> 1) & 0x20) + 1;
953 data->val_out |= ((csr14 >> 9) & 0x03C0);
954 break;
955 case 5: data->val_out = tp->lpar; break;
956 default: data->val_out = 0; break;
957 }
958 } else {
959 data->val_out = tulip_mdio_read (dev, data->phy_id & 0x1f, regnum);
960 }
961 return 0;
962
963 case SIOCSMIIREG: /* Write MII PHY register. */
964 if (regnum & ~0x1f)
965 return -EINVAL;
966 if (data->phy_id == phy) {
967 u16 value = data->val_in;
968 switch (regnum) {
969 case 0: /* Check for autonegotiation on or reset. */
970 tp->full_duplex_lock = (value & 0x9000) ? 0 : 1;
971 if (tp->full_duplex_lock)
972 tp->full_duplex = (value & 0x0100) ? 1 : 0;
973 break;
974 case 4:
975 tp->advertising[phy_idx] =
976 tp->mii_advertise = data->val_in;
977 break;
978 }
979 }
980 if (data->phy_id == 32 && (tp->flags & HAS_NWAY)) {
981 u16 value = data->val_in;
982 if (regnum == 0) {
983 if ((value & 0x1200) == 0x1200) {
984 if (tp->chip_id == PNIC2) {
985 pnic2_start_nway (dev);
986 } else {
987 t21142_start_nway (dev);
988 }
989 }
990 } else if (regnum == 4)
991 tp->sym_advertise = value;
992 } else {
993 tulip_mdio_write (dev, data->phy_id & 0x1f, regnum, data->val_in);
994 }
995 return 0;
996 default:
997 return -EOPNOTSUPP;
998 }
999
1000 return -EOPNOTSUPP;
1001 }
1002
1003
1004 /* Set or clear the multicast filter for this adaptor.
1005 Note that we only use exclusion around actually queueing the
1006 new frame, not around filling tp->setup_frame. This is non-deterministic
1007 when re-entered but still correct. */
1008
build_setup_frame_hash(u16 * setup_frm,struct net_device * dev)1009 static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev)
1010 {
1011 struct tulip_private *tp = netdev_priv(dev);
1012 u16 hash_table[32];
1013 struct netdev_hw_addr *ha;
1014 int i;
1015 u16 *eaddrs;
1016
1017 memset(hash_table, 0, sizeof(hash_table));
1018 __set_bit_le(255, hash_table); /* Broadcast entry */
1019 /* This should work on big-endian machines as well. */
1020 netdev_for_each_mc_addr(ha, dev) {
1021 int index = ether_crc_le(ETH_ALEN, ha->addr) & 0x1ff;
1022
1023 __set_bit_le(index, hash_table);
1024 }
1025 for (i = 0; i < 32; i++) {
1026 *setup_frm++ = hash_table[i];
1027 *setup_frm++ = hash_table[i];
1028 }
1029 setup_frm = &tp->setup_frame[13*6];
1030
1031 /* Fill the final entry with our physical address. */
1032 eaddrs = (u16 *)dev->dev_addr;
1033 *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0];
1034 *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1];
1035 *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2];
1036 }
1037
build_setup_frame_perfect(u16 * setup_frm,struct net_device * dev)1038 static void build_setup_frame_perfect(u16 *setup_frm, struct net_device *dev)
1039 {
1040 struct tulip_private *tp = netdev_priv(dev);
1041 struct netdev_hw_addr *ha;
1042 u16 *eaddrs;
1043
1044 /* We have <= 14 addresses so we can use the wonderful
1045 16 address perfect filtering of the Tulip. */
1046 netdev_for_each_mc_addr(ha, dev) {
1047 eaddrs = (u16 *) ha->addr;
1048 *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
1049 *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
1050 *setup_frm++ = *eaddrs; *setup_frm++ = *eaddrs++;
1051 }
1052 /* Fill the unused entries with the broadcast address. */
1053 memset(setup_frm, 0xff, (15 - netdev_mc_count(dev)) * 12);
1054 setup_frm = &tp->setup_frame[15*6];
1055
1056 /* Fill the final entry with our physical address. */
1057 eaddrs = (u16 *)dev->dev_addr;
1058 *setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0];
1059 *setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1];
1060 *setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2];
1061 }
1062
1063
set_rx_mode(struct net_device * dev)1064 static void set_rx_mode(struct net_device *dev)
1065 {
1066 struct tulip_private *tp = netdev_priv(dev);
1067 void __iomem *ioaddr = tp->base_addr;
1068 int csr6;
1069
1070 csr6 = ioread32(ioaddr + CSR6) & ~0x00D5;
1071
1072 tp->csr6 &= ~0x00D5;
1073 if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
1074 tp->csr6 |= AcceptAllMulticast | AcceptAllPhys;
1075 csr6 |= AcceptAllMulticast | AcceptAllPhys;
1076 } else if ((netdev_mc_count(dev) > 1000) ||
1077 (dev->flags & IFF_ALLMULTI)) {
1078 /* Too many to filter well -- accept all multicasts. */
1079 tp->csr6 |= AcceptAllMulticast;
1080 csr6 |= AcceptAllMulticast;
1081 } else if (tp->flags & MC_HASH_ONLY) {
1082 /* Some work-alikes have only a 64-entry hash filter table. */
1083 /* Should verify correctness on big-endian/__powerpc__ */
1084 struct netdev_hw_addr *ha;
1085 if (netdev_mc_count(dev) > 64) {
1086 /* Arbitrary non-effective limit. */
1087 tp->csr6 |= AcceptAllMulticast;
1088 csr6 |= AcceptAllMulticast;
1089 } else {
1090 u32 mc_filter[2] = {0, 0}; /* Multicast hash filter */
1091 int filterbit;
1092 netdev_for_each_mc_addr(ha, dev) {
1093 if (tp->flags & COMET_MAC_ADDR)
1094 filterbit = ether_crc_le(ETH_ALEN,
1095 ha->addr);
1096 else
1097 filterbit = ether_crc(ETH_ALEN,
1098 ha->addr) >> 26;
1099 filterbit &= 0x3f;
1100 mc_filter[filterbit >> 5] |= 1 << (filterbit & 31);
1101 if (tulip_debug > 2)
1102 dev_info(&dev->dev,
1103 "Added filter for %pM %08x bit %d\n",
1104 ha->addr,
1105 ether_crc(ETH_ALEN, ha->addr),
1106 filterbit);
1107 }
1108 if (mc_filter[0] == tp->mc_filter[0] &&
1109 mc_filter[1] == tp->mc_filter[1])
1110 ; /* No change. */
1111 else if (tp->flags & IS_ASIX) {
1112 iowrite32(2, ioaddr + CSR13);
1113 iowrite32(mc_filter[0], ioaddr + CSR14);
1114 iowrite32(3, ioaddr + CSR13);
1115 iowrite32(mc_filter[1], ioaddr + CSR14);
1116 } else if (tp->flags & COMET_MAC_ADDR) {
1117 iowrite32(mc_filter[0], ioaddr + CSR27);
1118 iowrite32(mc_filter[1], ioaddr + CSR28);
1119 }
1120 tp->mc_filter[0] = mc_filter[0];
1121 tp->mc_filter[1] = mc_filter[1];
1122 }
1123 } else {
1124 unsigned long flags;
1125 u32 tx_flags = 0x08000000 | 192;
1126
1127 /* Note that only the low-address shortword of setup_frame is valid!
1128 The values are doubled for big-endian architectures. */
1129 if (netdev_mc_count(dev) > 14) {
1130 /* Must use a multicast hash table. */
1131 build_setup_frame_hash(tp->setup_frame, dev);
1132 tx_flags = 0x08400000 | 192;
1133 } else {
1134 build_setup_frame_perfect(tp->setup_frame, dev);
1135 }
1136
1137 spin_lock_irqsave(&tp->lock, flags);
1138
1139 if (tp->cur_tx - tp->dirty_tx > TX_RING_SIZE - 2) {
1140 /* Same setup recently queued, we need not add it. */
1141 } else {
1142 unsigned int entry;
1143 int dummy = -1;
1144
1145 /* Now add this frame to the Tx list. */
1146
1147 entry = tp->cur_tx++ % TX_RING_SIZE;
1148
1149 if (entry != 0) {
1150 /* Avoid a chip errata by prefixing a dummy entry. */
1151 tp->tx_buffers[entry].skb = NULL;
1152 tp->tx_buffers[entry].mapping = 0;
1153 tp->tx_ring[entry].length =
1154 (entry == TX_RING_SIZE-1) ? cpu_to_le32(DESC_RING_WRAP) : 0;
1155 tp->tx_ring[entry].buffer1 = 0;
1156 /* Must set DescOwned later to avoid race with chip */
1157 dummy = entry;
1158 entry = tp->cur_tx++ % TX_RING_SIZE;
1159
1160 }
1161
1162 tp->tx_buffers[entry].skb = NULL;
1163 tp->tx_buffers[entry].mapping =
1164 pci_map_single(tp->pdev, tp->setup_frame,
1165 sizeof(tp->setup_frame),
1166 PCI_DMA_TODEVICE);
1167 /* Put the setup frame on the Tx list. */
1168 if (entry == TX_RING_SIZE-1)
1169 tx_flags |= DESC_RING_WRAP; /* Wrap ring. */
1170 tp->tx_ring[entry].length = cpu_to_le32(tx_flags);
1171 tp->tx_ring[entry].buffer1 =
1172 cpu_to_le32(tp->tx_buffers[entry].mapping);
1173 tp->tx_ring[entry].status = cpu_to_le32(DescOwned);
1174 if (dummy >= 0)
1175 tp->tx_ring[dummy].status = cpu_to_le32(DescOwned);
1176 if (tp->cur_tx - tp->dirty_tx >= TX_RING_SIZE - 2)
1177 netif_stop_queue(dev);
1178
1179 /* Trigger an immediate transmit demand. */
1180 iowrite32(0, ioaddr + CSR1);
1181 }
1182
1183 spin_unlock_irqrestore(&tp->lock, flags);
1184 }
1185
1186 iowrite32(csr6, ioaddr + CSR6);
1187 }
1188
1189 #ifdef CONFIG_TULIP_MWI
tulip_mwi_config(struct pci_dev * pdev,struct net_device * dev)1190 static void tulip_mwi_config(struct pci_dev *pdev, struct net_device *dev)
1191 {
1192 struct tulip_private *tp = netdev_priv(dev);
1193 u8 cache;
1194 u16 pci_command;
1195 u32 csr0;
1196
1197 if (tulip_debug > 3)
1198 netdev_dbg(dev, "tulip_mwi_config()\n");
1199
1200 tp->csr0 = csr0 = 0;
1201
1202 /* if we have any cache line size at all, we can do MRM and MWI */
1203 csr0 |= MRM | MWI;
1204
1205 /* Enable MWI in the standard PCI command bit.
1206 * Check for the case where MWI is desired but not available
1207 */
1208 pci_try_set_mwi(pdev);
1209
1210 /* read result from hardware (in case bit refused to enable) */
1211 pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
1212 if ((csr0 & MWI) && (!(pci_command & PCI_COMMAND_INVALIDATE)))
1213 csr0 &= ~MWI;
1214
1215 /* if cache line size hardwired to zero, no MWI */
1216 pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &cache);
1217 if ((csr0 & MWI) && (cache == 0)) {
1218 csr0 &= ~MWI;
1219 pci_clear_mwi(pdev);
1220 }
1221
1222 /* assign per-cacheline-size cache alignment and
1223 * burst length values
1224 */
1225 switch (cache) {
1226 case 8:
1227 csr0 |= MRL | (1 << CALShift) | (16 << BurstLenShift);
1228 break;
1229 case 16:
1230 csr0 |= MRL | (2 << CALShift) | (16 << BurstLenShift);
1231 break;
1232 case 32:
1233 csr0 |= MRL | (3 << CALShift) | (32 << BurstLenShift);
1234 break;
1235 default:
1236 cache = 0;
1237 break;
1238 }
1239
1240 /* if we have a good cache line size, we by now have a good
1241 * csr0, so save it and exit
1242 */
1243 if (cache)
1244 goto out;
1245
1246 /* we don't have a good csr0 or cache line size, disable MWI */
1247 if (csr0 & MWI) {
1248 pci_clear_mwi(pdev);
1249 csr0 &= ~MWI;
1250 }
1251
1252 /* sane defaults for burst length and cache alignment
1253 * originally from de4x5 driver
1254 */
1255 csr0 |= (8 << BurstLenShift) | (1 << CALShift);
1256
1257 out:
1258 tp->csr0 = csr0;
1259 if (tulip_debug > 2)
1260 netdev_dbg(dev, "MWI config cacheline=%d, csr0=%08x\n",
1261 cache, csr0);
1262 }
1263 #endif
1264
1265 /*
1266 * Chips that have the MRM/reserved bit quirk and the burst quirk. That
1267 * is the DM910X and the on chip ULi devices
1268 */
1269
tulip_uli_dm_quirk(struct pci_dev * pdev)1270 static int tulip_uli_dm_quirk(struct pci_dev *pdev)
1271 {
1272 if (pdev->vendor == 0x1282 && pdev->device == 0x9102)
1273 return 1;
1274 return 0;
1275 }
1276
1277 static const struct net_device_ops tulip_netdev_ops = {
1278 .ndo_open = tulip_open,
1279 .ndo_start_xmit = tulip_start_xmit,
1280 .ndo_tx_timeout = tulip_tx_timeout,
1281 .ndo_stop = tulip_close,
1282 .ndo_get_stats = tulip_get_stats,
1283 .ndo_do_ioctl = private_ioctl,
1284 .ndo_set_rx_mode = set_rx_mode,
1285 .ndo_set_mac_address = eth_mac_addr,
1286 .ndo_validate_addr = eth_validate_addr,
1287 #ifdef CONFIG_NET_POLL_CONTROLLER
1288 .ndo_poll_controller = poll_tulip,
1289 #endif
1290 };
1291
1292 const struct pci_device_id early_486_chipsets[] = {
1293 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82424) },
1294 { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496) },
1295 { },
1296 };
1297
tulip_init_one(struct pci_dev * pdev,const struct pci_device_id * ent)1298 static int tulip_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
1299 {
1300 struct tulip_private *tp;
1301 /* See note below on the multiport cards. */
1302 static unsigned char last_phys_addr[ETH_ALEN] = {
1303 0x00, 'L', 'i', 'n', 'u', 'x'
1304 };
1305 static int last_irq;
1306 int i, irq;
1307 unsigned short sum;
1308 unsigned char *ee_data;
1309 struct net_device *dev;
1310 void __iomem *ioaddr;
1311 static int board_idx = -1;
1312 int chip_idx = ent->driver_data;
1313 const char *chip_name = tulip_tbl[chip_idx].chip_name;
1314 unsigned int eeprom_missing = 0;
1315 unsigned int force_csr0 = 0;
1316
1317 #ifndef MODULE
1318 if (tulip_debug > 0)
1319 printk_once(KERN_INFO "%s", version);
1320 #endif
1321
1322 board_idx++;
1323
1324 /*
1325 * Lan media wire a tulip chip to a wan interface. Needs a very
1326 * different driver (lmc driver)
1327 */
1328
1329 if (pdev->subsystem_vendor == PCI_VENDOR_ID_LMC) {
1330 pr_err("skipping LMC card\n");
1331 return -ENODEV;
1332 } else if (pdev->subsystem_vendor == PCI_VENDOR_ID_SBE &&
1333 (pdev->subsystem_device == PCI_SUBDEVICE_ID_SBE_T3E3 ||
1334 pdev->subsystem_device == PCI_SUBDEVICE_ID_SBE_2T3E3_P0 ||
1335 pdev->subsystem_device == PCI_SUBDEVICE_ID_SBE_2T3E3_P1)) {
1336 pr_err("skipping SBE T3E3 port\n");
1337 return -ENODEV;
1338 }
1339
1340 /*
1341 * DM910x chips should be handled by the dmfe driver, except
1342 * on-board chips on SPARC systems. Also, early DM9100s need
1343 * software CRC which only the dmfe driver supports.
1344 */
1345
1346 #ifdef CONFIG_TULIP_DM910X
1347 if (chip_idx == DM910X) {
1348 struct device_node *dp;
1349
1350 if (pdev->vendor == 0x1282 && pdev->device == 0x9100 &&
1351 pdev->revision < 0x30) {
1352 pr_info("skipping early DM9100 with Crc bug (use dmfe)\n");
1353 return -ENODEV;
1354 }
1355
1356 dp = pci_device_to_OF_node(pdev);
1357 if (!(dp && of_get_property(dp, "local-mac-address", NULL))) {
1358 pr_info("skipping DM910x expansion card (use dmfe)\n");
1359 return -ENODEV;
1360 }
1361 }
1362 #endif
1363
1364 /*
1365 * Looks for early PCI chipsets where people report hangs
1366 * without the workarounds being on.
1367 */
1368
1369 /* 1. Intel Saturn. Switch to 8 long words burst, 8 long word cache
1370 aligned. Aries might need this too. The Saturn errata are not
1371 pretty reading but thankfully it's an old 486 chipset.
1372
1373 2. The dreaded SiS496 486 chipset. Same workaround as Intel
1374 Saturn.
1375 */
1376
1377 if (pci_dev_present(early_486_chipsets)) {
1378 csr0 = MRL | MRM | (8 << BurstLenShift) | (1 << CALShift);
1379 force_csr0 = 1;
1380 }
1381
1382 /* bugfix: the ASIX must have a burst limit or horrible things happen. */
1383 if (chip_idx == AX88140) {
1384 if ((csr0 & 0x3f00) == 0)
1385 csr0 |= 0x2000;
1386 }
1387
1388 /* PNIC doesn't have MWI/MRL/MRM... */
1389 if (chip_idx == LC82C168)
1390 csr0 &= ~0xfff10000; /* zero reserved bits 31:20, 16 */
1391
1392 /* DM9102A has troubles with MRM & clear reserved bits 24:22, 20, 16, 7:1 */
1393 if (tulip_uli_dm_quirk(pdev)) {
1394 csr0 &= ~0x01f100ff;
1395 #if defined(CONFIG_SPARC)
1396 csr0 = (csr0 & ~0xff00) | 0xe000;
1397 #endif
1398 }
1399 /*
1400 * And back to business
1401 */
1402
1403 i = pci_enable_device(pdev);
1404 if (i) {
1405 pr_err("Cannot enable tulip board #%d, aborting\n", board_idx);
1406 return i;
1407 }
1408
1409 irq = pdev->irq;
1410
1411 /* alloc_etherdev ensures aligned and zeroed private structures */
1412 dev = alloc_etherdev (sizeof (*tp));
1413 if (!dev)
1414 return -ENOMEM;
1415
1416 SET_NETDEV_DEV(dev, &pdev->dev);
1417 if (pci_resource_len (pdev, 0) < tulip_tbl[chip_idx].io_size) {
1418 pr_err("%s: I/O region (0x%llx@0x%llx) too small, aborting\n",
1419 pci_name(pdev),
1420 (unsigned long long)pci_resource_len (pdev, 0),
1421 (unsigned long long)pci_resource_start (pdev, 0));
1422 goto err_out_free_netdev;
1423 }
1424
1425 /* grab all resources from both PIO and MMIO regions, as we
1426 * don't want anyone else messing around with our hardware */
1427 if (pci_request_regions (pdev, DRV_NAME))
1428 goto err_out_free_netdev;
1429
1430 ioaddr = pci_iomap(pdev, TULIP_BAR, tulip_tbl[chip_idx].io_size);
1431
1432 if (!ioaddr)
1433 goto err_out_free_res;
1434
1435 /*
1436 * initialize private data structure 'tp'
1437 * it is zeroed and aligned in alloc_etherdev
1438 */
1439 tp = netdev_priv(dev);
1440 tp->dev = dev;
1441
1442 tp->rx_ring = pci_alloc_consistent(pdev,
1443 sizeof(struct tulip_rx_desc) * RX_RING_SIZE +
1444 sizeof(struct tulip_tx_desc) * TX_RING_SIZE,
1445 &tp->rx_ring_dma);
1446 if (!tp->rx_ring)
1447 goto err_out_mtable;
1448 tp->tx_ring = (struct tulip_tx_desc *)(tp->rx_ring + RX_RING_SIZE);
1449 tp->tx_ring_dma = tp->rx_ring_dma + sizeof(struct tulip_rx_desc) * RX_RING_SIZE;
1450
1451 tp->chip_id = chip_idx;
1452 tp->flags = tulip_tbl[chip_idx].flags;
1453
1454 tp->wolinfo.supported = 0;
1455 tp->wolinfo.wolopts = 0;
1456 /* COMET: Enable power management only for AN983B */
1457 if (chip_idx == COMET ) {
1458 u32 sig;
1459 pci_read_config_dword (pdev, 0x80, &sig);
1460 if (sig == 0x09811317) {
1461 tp->flags |= COMET_PM;
1462 tp->wolinfo.supported = WAKE_PHY | WAKE_MAGIC;
1463 pr_info("%s: Enabled WOL support for AN983B\n",
1464 __func__);
1465 }
1466 }
1467 tp->pdev = pdev;
1468 tp->base_addr = ioaddr;
1469 tp->revision = pdev->revision;
1470 tp->csr0 = csr0;
1471 spin_lock_init(&tp->lock);
1472 spin_lock_init(&tp->mii_lock);
1473 timer_setup(&tp->timer, tulip_tbl[tp->chip_id].media_timer, 0);
1474
1475 INIT_WORK(&tp->media_work, tulip_tbl[tp->chip_id].media_task);
1476
1477 #ifdef CONFIG_TULIP_MWI
1478 if (!force_csr0 && (tp->flags & HAS_PCI_MWI))
1479 tulip_mwi_config (pdev, dev);
1480 #endif
1481
1482 /* Stop the chip's Tx and Rx processes. */
1483 tulip_stop_rxtx(tp);
1484
1485 pci_set_master(pdev);
1486
1487 #ifdef CONFIG_GSC
1488 if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP) {
1489 switch (pdev->subsystem_device) {
1490 default:
1491 break;
1492 case 0x1061:
1493 case 0x1062:
1494 case 0x1063:
1495 case 0x1098:
1496 case 0x1099:
1497 case 0x10EE:
1498 tp->flags |= HAS_SWAPPED_SEEPROM | NEEDS_FAKE_MEDIA_TABLE;
1499 chip_name = "GSC DS21140 Tulip";
1500 }
1501 }
1502 #endif
1503
1504 /* Clear the missed-packet counter. */
1505 ioread32(ioaddr + CSR8);
1506
1507 /* The station address ROM is read byte serially. The register must
1508 be polled, waiting for the value to be read bit serially from the
1509 EEPROM.
1510 */
1511 ee_data = tp->eeprom;
1512 memset(ee_data, 0, sizeof(tp->eeprom));
1513 sum = 0;
1514 if (chip_idx == LC82C168) {
1515 for (i = 0; i < 3; i++) {
1516 int value, boguscnt = 100000;
1517 iowrite32(0x600 | i, ioaddr + 0x98);
1518 do {
1519 value = ioread32(ioaddr + CSR9);
1520 } while (value < 0 && --boguscnt > 0);
1521 put_unaligned_le16(value, ((__le16 *)dev->dev_addr) + i);
1522 sum += value & 0xffff;
1523 }
1524 } else if (chip_idx == COMET) {
1525 /* No need to read the EEPROM. */
1526 put_unaligned_le32(ioread32(ioaddr + 0xA4), dev->dev_addr);
1527 put_unaligned_le16(ioread32(ioaddr + 0xA8), dev->dev_addr + 4);
1528 for (i = 0; i < 6; i ++)
1529 sum += dev->dev_addr[i];
1530 } else {
1531 /* A serial EEPROM interface, we read now and sort it out later. */
1532 int sa_offset = 0;
1533 int ee_addr_size = tulip_read_eeprom(dev, 0xff, 8) & 0x40000 ? 8 : 6;
1534 int ee_max_addr = ((1 << ee_addr_size) - 1) * sizeof(u16);
1535
1536 if (ee_max_addr > sizeof(tp->eeprom))
1537 ee_max_addr = sizeof(tp->eeprom);
1538
1539 for (i = 0; i < ee_max_addr ; i += sizeof(u16)) {
1540 u16 data = tulip_read_eeprom(dev, i/2, ee_addr_size);
1541 ee_data[i] = data & 0xff;
1542 ee_data[i + 1] = data >> 8;
1543 }
1544
1545 /* DEC now has a specification (see Notes) but early board makers
1546 just put the address in the first EEPROM locations. */
1547 /* This does memcmp(ee_data, ee_data+16, 8) */
1548 for (i = 0; i < 8; i ++)
1549 if (ee_data[i] != ee_data[16+i])
1550 sa_offset = 20;
1551 if (chip_idx == CONEXANT) {
1552 /* Check that the tuple type and length is correct. */
1553 if (ee_data[0x198] == 0x04 && ee_data[0x199] == 6)
1554 sa_offset = 0x19A;
1555 } else if (ee_data[0] == 0xff && ee_data[1] == 0xff &&
1556 ee_data[2] == 0) {
1557 sa_offset = 2; /* Grrr, damn Matrox boards. */
1558 }
1559 #ifdef CONFIG_MIPS_COBALT
1560 if ((pdev->bus->number == 0) &&
1561 ((PCI_SLOT(pdev->devfn) == 7) ||
1562 (PCI_SLOT(pdev->devfn) == 12))) {
1563 /* Cobalt MAC address in first EEPROM locations. */
1564 sa_offset = 0;
1565 /* Ensure our media table fixup get's applied */
1566 memcpy(ee_data + 16, ee_data, 8);
1567 }
1568 #endif
1569 #ifdef CONFIG_GSC
1570 /* Check to see if we have a broken srom */
1571 if (ee_data[0] == 0x61 && ee_data[1] == 0x10) {
1572 /* pci_vendor_id and subsystem_id are swapped */
1573 ee_data[0] = ee_data[2];
1574 ee_data[1] = ee_data[3];
1575 ee_data[2] = 0x61;
1576 ee_data[3] = 0x10;
1577
1578 /* HSC-PCI boards need to be byte-swaped and shifted
1579 * up 1 word. This shift needs to happen at the end
1580 * of the MAC first because of the 2 byte overlap.
1581 */
1582 for (i = 4; i >= 0; i -= 2) {
1583 ee_data[17 + i + 3] = ee_data[17 + i];
1584 ee_data[16 + i + 5] = ee_data[16 + i];
1585 }
1586 }
1587 #endif
1588
1589 for (i = 0; i < 6; i ++) {
1590 dev->dev_addr[i] = ee_data[i + sa_offset];
1591 sum += ee_data[i + sa_offset];
1592 }
1593 }
1594 /* Lite-On boards have the address byte-swapped. */
1595 if ((dev->dev_addr[0] == 0xA0 ||
1596 dev->dev_addr[0] == 0xC0 ||
1597 dev->dev_addr[0] == 0x02) &&
1598 dev->dev_addr[1] == 0x00)
1599 for (i = 0; i < 6; i+=2) {
1600 char tmp = dev->dev_addr[i];
1601 dev->dev_addr[i] = dev->dev_addr[i+1];
1602 dev->dev_addr[i+1] = tmp;
1603 }
1604 /* On the Zynx 315 Etherarray and other multiport boards only the
1605 first Tulip has an EEPROM.
1606 On Sparc systems the mac address is held in the OBP property
1607 "local-mac-address".
1608 The addresses of the subsequent ports are derived from the first.
1609 Many PCI BIOSes also incorrectly report the IRQ line, so we correct
1610 that here as well. */
1611 if (sum == 0 || sum == 6*0xff) {
1612 #if defined(CONFIG_SPARC)
1613 struct device_node *dp = pci_device_to_OF_node(pdev);
1614 const unsigned char *addr;
1615 int len;
1616 #endif
1617 eeprom_missing = 1;
1618 for (i = 0; i < 5; i++)
1619 dev->dev_addr[i] = last_phys_addr[i];
1620 dev->dev_addr[i] = last_phys_addr[i] + 1;
1621 #if defined(CONFIG_SPARC)
1622 addr = of_get_property(dp, "local-mac-address", &len);
1623 if (addr && len == ETH_ALEN)
1624 memcpy(dev->dev_addr, addr, ETH_ALEN);
1625 #endif
1626 #if defined(__i386__) || defined(__x86_64__) /* Patch up x86 BIOS bug. */
1627 if (last_irq)
1628 irq = last_irq;
1629 #endif
1630 }
1631
1632 for (i = 0; i < 6; i++)
1633 last_phys_addr[i] = dev->dev_addr[i];
1634 last_irq = irq;
1635
1636 /* The lower four bits are the media type. */
1637 if (board_idx >= 0 && board_idx < MAX_UNITS) {
1638 if (options[board_idx] & MEDIA_MASK)
1639 tp->default_port = options[board_idx] & MEDIA_MASK;
1640 if ((options[board_idx] & FullDuplex) || full_duplex[board_idx] > 0)
1641 tp->full_duplex = 1;
1642 if (mtu[board_idx] > 0)
1643 dev->mtu = mtu[board_idx];
1644 }
1645 if (dev->mem_start & MEDIA_MASK)
1646 tp->default_port = dev->mem_start & MEDIA_MASK;
1647 if (tp->default_port) {
1648 pr_info(DRV_NAME "%d: Transceiver selection forced to %s\n",
1649 board_idx, medianame[tp->default_port & MEDIA_MASK]);
1650 tp->medialock = 1;
1651 if (tulip_media_cap[tp->default_port] & MediaAlwaysFD)
1652 tp->full_duplex = 1;
1653 }
1654 if (tp->full_duplex)
1655 tp->full_duplex_lock = 1;
1656
1657 if (tulip_media_cap[tp->default_port] & MediaIsMII) {
1658 static const u16 media2advert[] = {
1659 0x20, 0x40, 0x03e0, 0x60, 0x80, 0x100, 0x200
1660 };
1661 tp->mii_advertise = media2advert[tp->default_port - 9];
1662 tp->mii_advertise |= (tp->flags & HAS_8023X); /* Matching bits! */
1663 }
1664
1665 if (tp->flags & HAS_MEDIA_TABLE) {
1666 sprintf(dev->name, DRV_NAME "%d", board_idx); /* hack */
1667 tulip_parse_eeprom(dev);
1668 strcpy(dev->name, "eth%d"); /* un-hack */
1669 }
1670
1671 if ((tp->flags & ALWAYS_CHECK_MII) ||
1672 (tp->mtable && tp->mtable->has_mii) ||
1673 ( ! tp->mtable && (tp->flags & HAS_MII))) {
1674 if (tp->mtable && tp->mtable->has_mii) {
1675 for (i = 0; i < tp->mtable->leafcount; i++)
1676 if (tp->mtable->mleaf[i].media == 11) {
1677 tp->cur_index = i;
1678 tp->saved_if_port = dev->if_port;
1679 tulip_select_media(dev, 2);
1680 dev->if_port = tp->saved_if_port;
1681 break;
1682 }
1683 }
1684
1685 /* Find the connected MII xcvrs.
1686 Doing this in open() would allow detecting external xcvrs
1687 later, but takes much time. */
1688 tulip_find_mii (dev, board_idx);
1689 }
1690
1691 /* The Tulip-specific entries in the device structure. */
1692 dev->netdev_ops = &tulip_netdev_ops;
1693 dev->watchdog_timeo = TX_TIMEOUT;
1694 #ifdef CONFIG_TULIP_NAPI
1695 netif_napi_add(dev, &tp->napi, tulip_poll, 16);
1696 #endif
1697 dev->ethtool_ops = &ops;
1698
1699 if (register_netdev(dev))
1700 goto err_out_free_ring;
1701
1702 pci_set_drvdata(pdev, dev);
1703
1704 dev_info(&dev->dev,
1705 #ifdef CONFIG_TULIP_MMIO
1706 "%s rev %d at MMIO %#llx,%s %pM, IRQ %d\n",
1707 #else
1708 "%s rev %d at Port %#llx,%s %pM, IRQ %d\n",
1709 #endif
1710 chip_name, pdev->revision,
1711 (unsigned long long)pci_resource_start(pdev, TULIP_BAR),
1712 eeprom_missing ? " EEPROM not present," : "",
1713 dev->dev_addr, irq);
1714
1715 if (tp->chip_id == PNIC2)
1716 tp->link_change = pnic2_lnk_change;
1717 else if (tp->flags & HAS_NWAY)
1718 tp->link_change = t21142_lnk_change;
1719 else if (tp->flags & HAS_PNICNWAY)
1720 tp->link_change = pnic_lnk_change;
1721
1722 /* Reset the xcvr interface and turn on heartbeat. */
1723 switch (chip_idx) {
1724 case DC21140:
1725 case DM910X:
1726 default:
1727 if (tp->mtable)
1728 iowrite32(tp->mtable->csr12dir | 0x100, ioaddr + CSR12);
1729 break;
1730 case DC21142:
1731 if (tp->mii_cnt || tulip_media_cap[dev->if_port] & MediaIsMII) {
1732 iowrite32(csr6_mask_defstate, ioaddr + CSR6);
1733 iowrite32(0x0000, ioaddr + CSR13);
1734 iowrite32(0x0000, ioaddr + CSR14);
1735 iowrite32(csr6_mask_hdcap, ioaddr + CSR6);
1736 } else
1737 t21142_start_nway(dev);
1738 break;
1739 case PNIC2:
1740 /* just do a reset for sanity sake */
1741 iowrite32(0x0000, ioaddr + CSR13);
1742 iowrite32(0x0000, ioaddr + CSR14);
1743 break;
1744 case LC82C168:
1745 if ( ! tp->mii_cnt) {
1746 tp->nway = 1;
1747 tp->nwayset = 0;
1748 iowrite32(csr6_ttm | csr6_ca, ioaddr + CSR6);
1749 iowrite32(0x30, ioaddr + CSR12);
1750 iowrite32(0x0001F078, ioaddr + CSR6);
1751 iowrite32(0x0201F078, ioaddr + CSR6); /* Turn on autonegotiation. */
1752 }
1753 break;
1754 case MX98713:
1755 case COMPEX9881:
1756 iowrite32(0x00000000, ioaddr + CSR6);
1757 iowrite32(0x000711C0, ioaddr + CSR14); /* Turn on NWay. */
1758 iowrite32(0x00000001, ioaddr + CSR13);
1759 break;
1760 case MX98715:
1761 case MX98725:
1762 iowrite32(0x01a80000, ioaddr + CSR6);
1763 iowrite32(0xFFFFFFFF, ioaddr + CSR14);
1764 iowrite32(0x00001000, ioaddr + CSR12);
1765 break;
1766 case COMET:
1767 /* No initialization necessary. */
1768 break;
1769 }
1770
1771 /* put the chip in snooze mode until opened */
1772 tulip_set_power_state (tp, 0, 1);
1773
1774 return 0;
1775
1776 err_out_free_ring:
1777 pci_free_consistent (pdev,
1778 sizeof (struct tulip_rx_desc) * RX_RING_SIZE +
1779 sizeof (struct tulip_tx_desc) * TX_RING_SIZE,
1780 tp->rx_ring, tp->rx_ring_dma);
1781
1782 err_out_mtable:
1783 kfree (tp->mtable);
1784 pci_iounmap(pdev, ioaddr);
1785
1786 err_out_free_res:
1787 pci_release_regions (pdev);
1788
1789 err_out_free_netdev:
1790 free_netdev (dev);
1791 return -ENODEV;
1792 }
1793
1794
1795 /* set the registers according to the given wolopts */
tulip_set_wolopts(struct pci_dev * pdev,u32 wolopts)1796 static void tulip_set_wolopts (struct pci_dev *pdev, u32 wolopts)
1797 {
1798 struct net_device *dev = pci_get_drvdata(pdev);
1799 struct tulip_private *tp = netdev_priv(dev);
1800 void __iomem *ioaddr = tp->base_addr;
1801
1802 if (tp->flags & COMET_PM) {
1803
1804 unsigned int tmp;
1805
1806 tmp = ioread32(ioaddr + CSR18);
1807 tmp &= ~(comet_csr18_pmes_sticky | comet_csr18_apm_mode | comet_csr18_d3a);
1808 tmp |= comet_csr18_pm_mode;
1809 iowrite32(tmp, ioaddr + CSR18);
1810
1811 /* Set the Wake-up Control/Status Register to the given WOL options*/
1812 tmp = ioread32(ioaddr + CSR13);
1813 tmp &= ~(comet_csr13_linkoffe | comet_csr13_linkone | comet_csr13_wfre | comet_csr13_lsce | comet_csr13_mpre);
1814 if (wolopts & WAKE_MAGIC)
1815 tmp |= comet_csr13_mpre;
1816 if (wolopts & WAKE_PHY)
1817 tmp |= comet_csr13_linkoffe | comet_csr13_linkone | comet_csr13_lsce;
1818 /* Clear the event flags */
1819 tmp |= comet_csr13_wfr | comet_csr13_mpr | comet_csr13_lsc;
1820 iowrite32(tmp, ioaddr + CSR13);
1821 }
1822 }
1823
1824 #ifdef CONFIG_PM
1825
1826
tulip_suspend(struct pci_dev * pdev,pm_message_t state)1827 static int tulip_suspend (struct pci_dev *pdev, pm_message_t state)
1828 {
1829 pci_power_t pstate;
1830 struct net_device *dev = pci_get_drvdata(pdev);
1831 struct tulip_private *tp = netdev_priv(dev);
1832
1833 if (!dev)
1834 return -EINVAL;
1835
1836 if (!netif_running(dev))
1837 goto save_state;
1838
1839 tulip_down(dev);
1840
1841 netif_device_detach(dev);
1842 /* FIXME: it needlessly adds an error path. */
1843 free_irq(tp->pdev->irq, dev);
1844
1845 save_state:
1846 pci_save_state(pdev);
1847 pci_disable_device(pdev);
1848 pstate = pci_choose_state(pdev, state);
1849 if (state.event == PM_EVENT_SUSPEND && pstate != PCI_D0) {
1850 int rc;
1851
1852 tulip_set_wolopts(pdev, tp->wolinfo.wolopts);
1853 rc = pci_enable_wake(pdev, pstate, tp->wolinfo.wolopts);
1854 if (rc)
1855 pr_err("pci_enable_wake failed (%d)\n", rc);
1856 }
1857 pci_set_power_state(pdev, pstate);
1858
1859 return 0;
1860 }
1861
1862
tulip_resume(struct pci_dev * pdev)1863 static int tulip_resume(struct pci_dev *pdev)
1864 {
1865 struct net_device *dev = pci_get_drvdata(pdev);
1866 struct tulip_private *tp = netdev_priv(dev);
1867 void __iomem *ioaddr = tp->base_addr;
1868 int retval;
1869 unsigned int tmp;
1870
1871 if (!dev)
1872 return -EINVAL;
1873
1874 pci_set_power_state(pdev, PCI_D0);
1875 pci_restore_state(pdev);
1876
1877 if (!netif_running(dev))
1878 return 0;
1879
1880 if ((retval = pci_enable_device(pdev))) {
1881 pr_err("pci_enable_device failed in resume\n");
1882 return retval;
1883 }
1884
1885 retval = request_irq(pdev->irq, tulip_interrupt, IRQF_SHARED,
1886 dev->name, dev);
1887 if (retval) {
1888 pr_err("request_irq failed in resume\n");
1889 return retval;
1890 }
1891
1892 if (tp->flags & COMET_PM) {
1893 pci_enable_wake(pdev, PCI_D3hot, 0);
1894 pci_enable_wake(pdev, PCI_D3cold, 0);
1895
1896 /* Clear the PMES flag */
1897 tmp = ioread32(ioaddr + CSR20);
1898 tmp |= comet_csr20_pmes;
1899 iowrite32(tmp, ioaddr + CSR20);
1900
1901 /* Disable all wake-up events */
1902 tulip_set_wolopts(pdev, 0);
1903 }
1904 netif_device_attach(dev);
1905
1906 if (netif_running(dev))
1907 tulip_up(dev);
1908
1909 return 0;
1910 }
1911
1912 #endif /* CONFIG_PM */
1913
1914
tulip_remove_one(struct pci_dev * pdev)1915 static void tulip_remove_one(struct pci_dev *pdev)
1916 {
1917 struct net_device *dev = pci_get_drvdata (pdev);
1918 struct tulip_private *tp;
1919
1920 if (!dev)
1921 return;
1922
1923 tp = netdev_priv(dev);
1924 unregister_netdev(dev);
1925 pci_free_consistent (pdev,
1926 sizeof (struct tulip_rx_desc) * RX_RING_SIZE +
1927 sizeof (struct tulip_tx_desc) * TX_RING_SIZE,
1928 tp->rx_ring, tp->rx_ring_dma);
1929 kfree (tp->mtable);
1930 pci_iounmap(pdev, tp->base_addr);
1931 free_netdev (dev);
1932 pci_release_regions (pdev);
1933 pci_disable_device(pdev);
1934
1935 /* pci_power_off (pdev, -1); */
1936 }
1937
1938 #ifdef CONFIG_NET_POLL_CONTROLLER
1939 /*
1940 * Polling 'interrupt' - used by things like netconsole to send skbs
1941 * without having to re-enable interrupts. It's not called while
1942 * the interrupt routine is executing.
1943 */
1944
poll_tulip(struct net_device * dev)1945 static void poll_tulip (struct net_device *dev)
1946 {
1947 struct tulip_private *tp = netdev_priv(dev);
1948 const int irq = tp->pdev->irq;
1949
1950 /* disable_irq here is not very nice, but with the lockless
1951 interrupt handler we have no other choice. */
1952 disable_irq(irq);
1953 tulip_interrupt (irq, dev);
1954 enable_irq(irq);
1955 }
1956 #endif
1957
1958 static struct pci_driver tulip_driver = {
1959 .name = DRV_NAME,
1960 .id_table = tulip_pci_tbl,
1961 .probe = tulip_init_one,
1962 .remove = tulip_remove_one,
1963 #ifdef CONFIG_PM
1964 .suspend = tulip_suspend,
1965 .resume = tulip_resume,
1966 #endif /* CONFIG_PM */
1967 };
1968
1969
tulip_init(void)1970 static int __init tulip_init (void)
1971 {
1972 #ifdef MODULE
1973 pr_info("%s", version);
1974 #endif
1975
1976 if (!csr0) {
1977 pr_warn("tulip: unknown CPU architecture, using default csr0\n");
1978 /* default to 8 longword cache line alignment */
1979 csr0 = 0x00A00000 | 0x4800;
1980 }
1981
1982 /* copy module parms into globals */
1983 tulip_rx_copybreak = rx_copybreak;
1984 tulip_max_interrupt_work = max_interrupt_work;
1985
1986 /* probe for and init boards */
1987 return pci_register_driver(&tulip_driver);
1988 }
1989
1990
tulip_cleanup(void)1991 static void __exit tulip_cleanup (void)
1992 {
1993 pci_unregister_driver (&tulip_driver);
1994 }
1995
1996
1997 module_init(tulip_init);
1998 module_exit(tulip_cleanup);
1999
