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sfc: Implement ethtool reset operation
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / sfc / ethtool.c
blob29aa83c2a0d0f740a5a30581385121159ab70c07
1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2008 Solarflare Communications Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation, incorporated herein by reference.
9 */
10
11 #include <linux/netdevice.h>
12 #include <linux/ethtool.h>
13 #include <linux/rtnetlink.h>
14 #include "net_driver.h"
15 #include "workarounds.h"
16 #include "selftest.h"
17 #include "efx.h"
18 #include "falcon.h"
19 #include "spi.h"
20 #include "mdio_10g.h"
21
22 struct ethtool_string {
23 char name[ETH_GSTRING_LEN];
24 };
25
26 struct efx_ethtool_stat {
27 const char *name;
28 enum {
29 EFX_ETHTOOL_STAT_SOURCE_mac_stats,
30 EFX_ETHTOOL_STAT_SOURCE_nic,
31 EFX_ETHTOOL_STAT_SOURCE_channel
32 } source;
33 unsigned offset;
34 u64(*get_stat) (void *field); /* Reader function */
35 };
36
37 /* Initialiser for a struct #efx_ethtool_stat with type-checking */
38 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
39 get_stat_function) { \
40 .name = #stat_name, \
41 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
42 .offset = ((((field_type *) 0) == \
43 &((struct efx_##source_name *)0)->field) ? \
44 offsetof(struct efx_##source_name, field) : \
45 offsetof(struct efx_##source_name, field)), \
46 .get_stat = get_stat_function, \
47 }
48
49 static u64 efx_get_uint_stat(void *field)
50 {
51 return *(unsigned int *)field;
52 }
53
54 static u64 efx_get_ulong_stat(void *field)
55 {
56 return *(unsigned long *)field;
57 }
58
59 static u64 efx_get_u64_stat(void *field)
60 {
61 return *(u64 *) field;
62 }
63
64 static u64 efx_get_atomic_stat(void *field)
65 {
66 return atomic_read((atomic_t *) field);
67 }
68
69 #define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
70 EFX_ETHTOOL_STAT(field, mac_stats, field, \
71 unsigned long, efx_get_ulong_stat)
72
73 #define EFX_ETHTOOL_U64_MAC_STAT(field) \
74 EFX_ETHTOOL_STAT(field, mac_stats, field, \
75 u64, efx_get_u64_stat)
76
77 #define EFX_ETHTOOL_UINT_NIC_STAT(name) \
78 EFX_ETHTOOL_STAT(name, nic, n_##name, \
79 unsigned int, efx_get_uint_stat)
80
81 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
82 EFX_ETHTOOL_STAT(field, nic, field, \
83 atomic_t, efx_get_atomic_stat)
84
85 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
86 EFX_ETHTOOL_STAT(field, channel, n_##field, \
87 unsigned int, efx_get_uint_stat)
88
89 static struct efx_ethtool_stat efx_ethtool_stats[] = {
90 EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
91 EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
92 EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
93 EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
94 EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
95 EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
96 EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
97 EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
98 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
99 EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
100 EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
101 EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
102 EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
103 EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
104 EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
105 EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
106 EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
107 EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
108 EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
109 EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
110 EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
111 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
112 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
113 EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
114 EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
115 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
116 EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
117 EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
118 EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
119 EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
120 EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
121 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
122 EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
123 EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
124 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
125 EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
126 EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
127 EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
128 EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
129 EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
130 EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
131 EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
132 EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
133 EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
134 EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
135 EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
136 EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
137 EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
138 EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
139 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
140 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
141 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
142 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
143 EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
144 EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
145 EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
146 EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
147 EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
148 EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
149 EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
150 EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
151 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
152 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
153 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
154 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
155 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
156 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
157 };
158
159 /* Number of ethtool statistics */
160 #define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
161
162 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
163
164 /**************************************************************************
165 *
166 * Ethtool operations
167 *
168 **************************************************************************
169 */
170
171 /* Identify device by flashing LEDs */
172 static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
173 {
174 struct efx_nic *efx = netdev_priv(net_dev);
175
176 do {
177 falcon_board(efx)->type->set_id_led(efx, EFX_LED_ON);
178 schedule_timeout_interruptible(HZ / 2);
179
180 falcon_board(efx)->type->set_id_led(efx, EFX_LED_OFF);
181 schedule_timeout_interruptible(HZ / 2);
182 } while (!signal_pending(current) && --count != 0);
183
184 falcon_board(efx)->type->set_id_led(efx, EFX_LED_DEFAULT);
185 return 0;
186 }
187
188 /* This must be called with rtnl_lock held. */
189 int efx_ethtool_get_settings(struct net_device *net_dev,
190 struct ethtool_cmd *ecmd)
191 {
192 struct efx_nic *efx = netdev_priv(net_dev);
193 struct efx_link_state *link_state = &efx->link_state;
194
195 mutex_lock(&efx->mac_lock);
196 efx->phy_op->get_settings(efx, ecmd);
197 mutex_unlock(&efx->mac_lock);
198
199 /* Falcon GMAC does not support 1000Mbps HD */
200 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
201 /* Both MACs support pause frames (bidirectional and respond-only) */
202 ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
203
204 if (LOOPBACK_INTERNAL(efx)) {
205 ecmd->speed = link_state->speed;
206 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
207 }
208
209 return 0;
210 }
211
212 /* This must be called with rtnl_lock held. */
213 int efx_ethtool_set_settings(struct net_device *net_dev,
214 struct ethtool_cmd *ecmd)
215 {
216 struct efx_nic *efx = netdev_priv(net_dev);
217 int rc;
218
219 /* Falcon GMAC does not support 1000Mbps HD */
220 if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
221 EFX_LOG(efx, "rejecting unsupported 1000Mbps HD"
222 " setting\n");
223 return -EINVAL;
224 }
225
226 mutex_lock(&efx->mac_lock);
227 rc = efx->phy_op->set_settings(efx, ecmd);
228 mutex_unlock(&efx->mac_lock);
229 return rc;
230 }
231
232 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
233 struct ethtool_drvinfo *info)
234 {
235 struct efx_nic *efx = netdev_priv(net_dev);
236
237 strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
238 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
239 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
240 }
241
242 /**
243 * efx_fill_test - fill in an individual self-test entry
244 * @test_index: Index of the test
245 * @strings: Ethtool strings, or %NULL
246 * @data: Ethtool test results, or %NULL
247 * @test: Pointer to test result (used only if data != %NULL)
248 * @unit_format: Unit name format (e.g. "chan\%d")
249 * @unit_id: Unit id (e.g. 0 for "chan0")
250 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
251 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
252 *
253 * Fill in an individual self-test entry.
254 */
255 static void efx_fill_test(unsigned int test_index,
256 struct ethtool_string *strings, u64 *data,
257 int *test, const char *unit_format, int unit_id,
258 const char *test_format, const char *test_id)
259 {
260 struct ethtool_string unit_str, test_str;
261
262 /* Fill data value, if applicable */
263 if (data)
264 data[test_index] = *test;
265
266 /* Fill string, if applicable */
267 if (strings) {
268 if (strchr(unit_format, '%'))
269 snprintf(unit_str.name, sizeof(unit_str.name),
270 unit_format, unit_id);
271 else
272 strcpy(unit_str.name, unit_format);
273 snprintf(test_str.name, sizeof(test_str.name),
274 test_format, test_id);
275 snprintf(strings[test_index].name,
276 sizeof(strings[test_index].name),
277 "%-6s %-24s", unit_str.name, test_str.name);
278 }
279 }
280
281 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
282 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
283 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
284 #define EFX_LOOPBACK_NAME(_mode, _counter) \
285 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
286
287 /**
288 * efx_fill_loopback_test - fill in a block of loopback self-test entries
289 * @efx: Efx NIC
290 * @lb_tests: Efx loopback self-test results structure
291 * @mode: Loopback test mode
292 * @test_index: Starting index of the test
293 * @strings: Ethtool strings, or %NULL
294 * @data: Ethtool test results, or %NULL
295 */
296 static int efx_fill_loopback_test(struct efx_nic *efx,
297 struct efx_loopback_self_tests *lb_tests,
298 enum efx_loopback_mode mode,
299 unsigned int test_index,
300 struct ethtool_string *strings, u64 *data)
301 {
302 struct efx_tx_queue *tx_queue;
303
304 efx_for_each_tx_queue(tx_queue, efx) {
305 efx_fill_test(test_index++, strings, data,
306 &lb_tests->tx_sent[tx_queue->queue],
307 EFX_TX_QUEUE_NAME(tx_queue),
308 EFX_LOOPBACK_NAME(mode, "tx_sent"));
309 efx_fill_test(test_index++, strings, data,
310 &lb_tests->tx_done[tx_queue->queue],
311 EFX_TX_QUEUE_NAME(tx_queue),
312 EFX_LOOPBACK_NAME(mode, "tx_done"));
313 }
314 efx_fill_test(test_index++, strings, data,
315 &lb_tests->rx_good,
316 "rx", 0,
317 EFX_LOOPBACK_NAME(mode, "rx_good"));
318 efx_fill_test(test_index++, strings, data,
319 &lb_tests->rx_bad,
320 "rx", 0,
321 EFX_LOOPBACK_NAME(mode, "rx_bad"));
322
323 return test_index;
324 }
325
326 /**
327 * efx_ethtool_fill_self_tests - get self-test details
328 * @efx: Efx NIC
329 * @tests: Efx self-test results structure, or %NULL
330 * @strings: Ethtool strings, or %NULL
331 * @data: Ethtool test results, or %NULL
332 */
333 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
334 struct efx_self_tests *tests,
335 struct ethtool_string *strings,
336 u64 *data)
337 {
338 struct efx_channel *channel;
339 unsigned int n = 0, i;
340 enum efx_loopback_mode mode;
341
342 efx_fill_test(n++, strings, data, &tests->mdio,
343 "core", 0, "mdio", NULL);
344 efx_fill_test(n++, strings, data, &tests->nvram,
345 "core", 0, "nvram", NULL);
346 efx_fill_test(n++, strings, data, &tests->interrupt,
347 "core", 0, "interrupt", NULL);
348
349 /* Event queues */
350 efx_for_each_channel(channel, efx) {
351 efx_fill_test(n++, strings, data,
352 &tests->eventq_dma[channel->channel],
353 EFX_CHANNEL_NAME(channel),
354 "eventq.dma", NULL);
355 efx_fill_test(n++, strings, data,
356 &tests->eventq_int[channel->channel],
357 EFX_CHANNEL_NAME(channel),
358 "eventq.int", NULL);
359 efx_fill_test(n++, strings, data,
360 &tests->eventq_poll[channel->channel],
361 EFX_CHANNEL_NAME(channel),
362 "eventq.poll", NULL);
363 }
364
365 efx_fill_test(n++, strings, data, &tests->registers,
366 "core", 0, "registers", NULL);
367
368 for (i = 0; i < efx->phy_op->num_tests; i++)
369 efx_fill_test(n++, strings, data, &tests->phy[i],
370 "phy", 0, efx->phy_op->test_names[i], NULL);
371
372 /* Loopback tests */
373 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
374 if (!(efx->loopback_modes & (1 << mode)))
375 continue;
376 n = efx_fill_loopback_test(efx,
377 &tests->loopback[mode], mode, n,
378 strings, data);
379 }
380
381 return n;
382 }
383
384 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
385 int string_set)
386 {
387 switch (string_set) {
388 case ETH_SS_STATS:
389 return EFX_ETHTOOL_NUM_STATS;
390 case ETH_SS_TEST:
391 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
392 NULL, NULL, NULL);
393 default:
394 return -EINVAL;
395 }
396 }
397
398 static void efx_ethtool_get_strings(struct net_device *net_dev,
399 u32 string_set, u8 *strings)
400 {
401 struct efx_nic *efx = netdev_priv(net_dev);
402 struct ethtool_string *ethtool_strings =
403 (struct ethtool_string *)strings;
404 int i;
405
406 switch (string_set) {
407 case ETH_SS_STATS:
408 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
409 strncpy(ethtool_strings[i].name,
410 efx_ethtool_stats[i].name,
411 sizeof(ethtool_strings[i].name));
412 break;
413 case ETH_SS_TEST:
414 efx_ethtool_fill_self_tests(efx, NULL,
415 ethtool_strings, NULL);
416 break;
417 default:
418 /* No other string sets */
419 break;
420 }
421 }
422
423 static void efx_ethtool_get_stats(struct net_device *net_dev,
424 struct ethtool_stats *stats,
425 u64 *data)
426 {
427 struct efx_nic *efx = netdev_priv(net_dev);
428 struct efx_mac_stats *mac_stats = &efx->mac_stats;
429 struct efx_ethtool_stat *stat;
430 struct efx_channel *channel;
431 int i;
432
433 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
434
435 /* Update MAC and NIC statistics */
436 dev_get_stats(net_dev);
437
438 /* Fill detailed statistics buffer */
439 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
440 stat = &efx_ethtool_stats[i];
441 switch (stat->source) {
442 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
443 data[i] = stat->get_stat((void *)mac_stats +
444 stat->offset);
445 break;
446 case EFX_ETHTOOL_STAT_SOURCE_nic:
447 data[i] = stat->get_stat((void *)efx + stat->offset);
448 break;
449 case EFX_ETHTOOL_STAT_SOURCE_channel:
450 data[i] = 0;
451 efx_for_each_channel(channel, efx)
452 data[i] += stat->get_stat((void *)channel +
453 stat->offset);
454 break;
455 }
456 }
457 }
458
459 static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
460 {
461 struct efx_nic *efx = netdev_priv(net_dev);
462
463 /* No way to stop the hardware doing the checks; we just
464 * ignore the result.
465 */
466 efx->rx_checksum_enabled = !!enable;
467
468 return 0;
469 }
470
471 static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
472 {
473 struct efx_nic *efx = netdev_priv(net_dev);
474
475 return efx->rx_checksum_enabled;
476 }
477
478 static void efx_ethtool_self_test(struct net_device *net_dev,
479 struct ethtool_test *test, u64 *data)
480 {
481 struct efx_nic *efx = netdev_priv(net_dev);
482 struct efx_self_tests efx_tests;
483 int already_up;
484 int rc;
485
486 ASSERT_RTNL();
487 if (efx->state != STATE_RUNNING) {
488 rc = -EIO;
489 goto fail1;
490 }
491
492 /* We need rx buffers and interrupts. */
493 already_up = (efx->net_dev->flags & IFF_UP);
494 if (!already_up) {
495 rc = dev_open(efx->net_dev);
496 if (rc) {
497 EFX_ERR(efx, "failed opening device.\n");
498 goto fail2;
499 }
500 }
501
502 memset(&efx_tests, 0, sizeof(efx_tests));
503
504 rc = efx_selftest(efx, &efx_tests, test->flags);
505
506 if (!already_up)
507 dev_close(efx->net_dev);
508
509 EFX_LOG(efx, "%s %sline self-tests\n",
510 rc == 0 ? "passed" : "failed",
511 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
512
513 fail2:
514 fail1:
515 /* Fill ethtool results structures */
516 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
517 if (rc)
518 test->flags |= ETH_TEST_FL_FAILED;
519 }
520
521 /* Restart autonegotiation */
522 static int efx_ethtool_nway_reset(struct net_device *net_dev)
523 {
524 struct efx_nic *efx = netdev_priv(net_dev);
525
526 return mdio45_nway_restart(&efx->mdio);
527 }
528
529 static u32 efx_ethtool_get_link(struct net_device *net_dev)
530 {
531 struct efx_nic *efx = netdev_priv(net_dev);
532
533 return efx->link_state.up;
534 }
535
536 static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
537 {
538 struct efx_nic *efx = netdev_priv(net_dev);
539 struct efx_spi_device *spi = efx->spi_eeprom;
540
541 if (!spi)
542 return 0;
543 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
544 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
545 }
546
547 static int efx_ethtool_get_eeprom(struct net_device *net_dev,
548 struct ethtool_eeprom *eeprom, u8 *buf)
549 {
550 struct efx_nic *efx = netdev_priv(net_dev);
551 struct efx_spi_device *spi = efx->spi_eeprom;
552 size_t len;
553 int rc;
554
555 rc = mutex_lock_interruptible(&efx->spi_lock);
556 if (rc)
557 return rc;
558 rc = falcon_spi_read(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
559 eeprom->len, &len, buf);
560 mutex_unlock(&efx->spi_lock);
561
562 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
563 eeprom->len = len;
564 return rc;
565 }
566
567 static int efx_ethtool_set_eeprom(struct net_device *net_dev,
568 struct ethtool_eeprom *eeprom, u8 *buf)
569 {
570 struct efx_nic *efx = netdev_priv(net_dev);
571 struct efx_spi_device *spi = efx->spi_eeprom;
572 size_t len;
573 int rc;
574
575 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
576 return -EINVAL;
577
578 rc = mutex_lock_interruptible(&efx->spi_lock);
579 if (rc)
580 return rc;
581 rc = falcon_spi_write(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
582 eeprom->len, &len, buf);
583 mutex_unlock(&efx->spi_lock);
584
585 eeprom->len = len;
586 return rc;
587 }
588
589 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
590 struct ethtool_coalesce *coalesce)
591 {
592 struct efx_nic *efx = netdev_priv(net_dev);
593 struct efx_tx_queue *tx_queue;
594 struct efx_channel *channel;
595
596 memset(coalesce, 0, sizeof(*coalesce));
597
598 /* Find lowest IRQ moderation across all used TX queues */
599 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
600 efx_for_each_tx_queue(tx_queue, efx) {
601 channel = tx_queue->channel;
602 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
603 if (channel->used_flags != EFX_USED_BY_RX_TX)
604 coalesce->tx_coalesce_usecs_irq =
605 channel->irq_moderation;
606 else
607 coalesce->tx_coalesce_usecs_irq = 0;
608 }
609 }
610
611 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
612 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
613
614 coalesce->tx_coalesce_usecs_irq *= FALCON_IRQ_MOD_RESOLUTION;
615 coalesce->rx_coalesce_usecs_irq *= FALCON_IRQ_MOD_RESOLUTION;
616
617 return 0;
618 }
619
620 /* Set coalescing parameters
621 * The difficulties occur for shared channels
622 */
623 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
624 struct ethtool_coalesce *coalesce)
625 {
626 struct efx_nic *efx = netdev_priv(net_dev);
627 struct efx_channel *channel;
628 struct efx_tx_queue *tx_queue;
629 unsigned tx_usecs, rx_usecs, adaptive;
630
631 if (coalesce->use_adaptive_tx_coalesce)
632 return -EOPNOTSUPP;
633
634 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
635 EFX_ERR(efx, "invalid coalescing setting. "
636 "Only rx/tx_coalesce_usecs_irq are supported\n");
637 return -EOPNOTSUPP;
638 }
639
640 rx_usecs = coalesce->rx_coalesce_usecs_irq;
641 tx_usecs = coalesce->tx_coalesce_usecs_irq;
642 adaptive = coalesce->use_adaptive_rx_coalesce;
643
644 /* If the channel is shared only allow RX parameters to be set */
645 efx_for_each_tx_queue(tx_queue, efx) {
646 if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
647 tx_usecs) {
648 EFX_ERR(efx, "Channel is shared. "
649 "Only RX coalescing may be set\n");
650 return -EOPNOTSUPP;
651 }
652 }
653
654 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
655 efx_for_each_channel(channel, efx)
656 efx->type->push_irq_moderation(channel);
657
658 return 0;
659 }
660
661 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
662 struct ethtool_pauseparam *pause)
663 {
664 struct efx_nic *efx = netdev_priv(net_dev);
665 enum efx_fc_type wanted_fc, old_fc;
666 u32 old_adv;
667 bool reset;
668 int rc = 0;
669
670 mutex_lock(&efx->mac_lock);
671
672 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
673 (pause->tx_pause ? EFX_FC_TX : 0) |
674 (pause->autoneg ? EFX_FC_AUTO : 0));
675
676 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
677 EFX_LOG(efx, "Flow control unsupported: tx ON rx OFF\n");
678 rc = -EINVAL;
679 goto out;
680 }
681
682 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
683 EFX_LOG(efx, "Autonegotiation is disabled\n");
684 rc = -EINVAL;
685 goto out;
686 }
687
688 /* TX flow control may automatically turn itself off if the
689 * link partner (intermittently) stops responding to pause
690 * frames. There isn't any indication that this has happened,
691 * so the best we do is leave it up to the user to spot this
692 * and fix it be cycling transmit flow control on this end. */
693 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
694 if (EFX_WORKAROUND_11482(efx) && reset) {
695 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
696 /* Recover by resetting the EM block */
697 falcon_stop_nic_stats(efx);
698 falcon_drain_tx_fifo(efx);
699 efx->mac_op->reconfigure(efx);
700 falcon_start_nic_stats(efx);
701 } else {
702 /* Schedule a reset to recover */
703 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
704 }
705 }
706
707 old_adv = efx->link_advertising;
708 old_fc = efx->wanted_fc;
709 efx_link_set_wanted_fc(efx, wanted_fc);
710 if (efx->link_advertising != old_adv ||
711 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
712 rc = efx->phy_op->reconfigure(efx);
713 if (rc) {
714 EFX_ERR(efx, "Unable to advertise requested flow "
715 "control setting\n");
716 goto out;
717 }
718 }
719
720 /* Reconfigure the MAC. The PHY *may* generate a link state change event
721 * if the user just changed the advertised capabilities, but there's no
722 * harm doing this twice */
723 efx->mac_op->reconfigure(efx);
724
725 out:
726 mutex_unlock(&efx->mac_lock);
727
728 return rc;
729 }
730
731 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
732 struct ethtool_pauseparam *pause)
733 {
734 struct efx_nic *efx = netdev_priv(net_dev);
735
736 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
737 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
738 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
739 }
740
741
742 static void efx_ethtool_get_wol(struct net_device *net_dev,
743 struct ethtool_wolinfo *wol)
744 {
745 struct efx_nic *efx = netdev_priv(net_dev);
746 return efx->type->get_wol(efx, wol);
747 }
748
749
750 static int efx_ethtool_set_wol(struct net_device *net_dev,
751 struct ethtool_wolinfo *wol)
752 {
753 struct efx_nic *efx = netdev_priv(net_dev);
754 return efx->type->set_wol(efx, wol->wolopts);
755 }
756
757 extern int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
758 {
759 struct efx_nic *efx = netdev_priv(net_dev);
760 enum reset_type method;
761 enum {
762 ETH_RESET_EFX_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
763 ETH_RESET_OFFLOAD | ETH_RESET_MAC)
764 };
765
766 /* Check for minimal reset flags */
767 if ((*flags & ETH_RESET_EFX_INVISIBLE) != ETH_RESET_EFX_INVISIBLE)
768 return -EINVAL;
769 *flags ^= ETH_RESET_EFX_INVISIBLE;
770 method = RESET_TYPE_INVISIBLE;
771
772 if (*flags & ETH_RESET_PHY) {
773 *flags ^= ETH_RESET_PHY;
774 method = RESET_TYPE_ALL;
775 }
776
777 if ((*flags & efx->type->reset_world_flags) ==
778 efx->type->reset_world_flags) {
779 *flags ^= efx->type->reset_world_flags;
780 method = RESET_TYPE_WORLD;
781 }
782
783 return efx_reset(efx, method);
784 }
785
786 const struct ethtool_ops efx_ethtool_ops = {
787 .get_settings = efx_ethtool_get_settings,
788 .set_settings = efx_ethtool_set_settings,
789 .get_drvinfo = efx_ethtool_get_drvinfo,
790 .nway_reset = efx_ethtool_nway_reset,
791 .get_link = efx_ethtool_get_link,
792 .get_eeprom_len = efx_ethtool_get_eeprom_len,
793 .get_eeprom = efx_ethtool_get_eeprom,
794 .set_eeprom = efx_ethtool_set_eeprom,
795 .get_coalesce = efx_ethtool_get_coalesce,
796 .set_coalesce = efx_ethtool_set_coalesce,
797 .get_pauseparam = efx_ethtool_get_pauseparam,
798 .set_pauseparam = efx_ethtool_set_pauseparam,
799 .get_rx_csum = efx_ethtool_get_rx_csum,
800 .set_rx_csum = efx_ethtool_set_rx_csum,
801 .get_tx_csum = ethtool_op_get_tx_csum,
802 .set_tx_csum = ethtool_op_set_tx_csum,
803 .get_sg = ethtool_op_get_sg,
804 .set_sg = ethtool_op_set_sg,
805 .get_tso = ethtool_op_get_tso,
806 .set_tso = ethtool_op_set_tso,
807 .get_flags = ethtool_op_get_flags,
808 .set_flags = ethtool_op_set_flags,
809 .get_sset_count = efx_ethtool_get_sset_count,
810 .self_test = efx_ethtool_self_test,
811 .get_strings = efx_ethtool_get_strings,
812 .phys_id = efx_ethtool_phys_id,
813 .get_ethtool_stats = efx_ethtool_get_stats,
814 .get_wol = efx_ethtool_get_wol,
815 .set_wol = efx_ethtool_set_wol,
816 .reset = efx_ethtool_reset,
817 };
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree