projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
sfc: Remove static PHY data and enumerations
[deliverable/linux.git] / drivers / net / sfc / ethtool.c
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 efx->type->set_id_led(efx, EFX_LED_ON);
178 schedule_timeout_interruptible(HZ / 2);
179
180 efx->type->set_id_led(efx, EFX_LED_OFF);
181 schedule_timeout_interruptible(HZ / 2);
182 } while (!signal_pending(current) && --count != 0);
183
184 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 if (efx->phy_op->run_tests != NULL) {
369 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
370
371 for (i = 0; true; ++i) {
372 const char *name;
373
374 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
375 name = efx->phy_op->test_name(efx, i);
376 if (name == NULL)
377 break;
378
379 efx_fill_test(n++, strings, data, &tests->phy[i],
380 "phy", 0, name, NULL);
381 }
382 }
383
384 /* Loopback tests */
385 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
386 if (!(efx->loopback_modes & (1 << mode)))
387 continue;
388 n = efx_fill_loopback_test(efx,
389 &tests->loopback[mode], mode, n,
390 strings, data);
391 }
392
393 return n;
394 }
395
396 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
397 int string_set)
398 {
399 switch (string_set) {
400 case ETH_SS_STATS:
401 return EFX_ETHTOOL_NUM_STATS;
402 case ETH_SS_TEST:
403 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
404 NULL, NULL, NULL);
405 default:
406 return -EINVAL;
407 }
408 }
409
410 static void efx_ethtool_get_strings(struct net_device *net_dev,
411 u32 string_set, u8 *strings)
412 {
413 struct efx_nic *efx = netdev_priv(net_dev);
414 struct ethtool_string *ethtool_strings =
415 (struct ethtool_string *)strings;
416 int i;
417
418 switch (string_set) {
419 case ETH_SS_STATS:
420 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
421 strncpy(ethtool_strings[i].name,
422 efx_ethtool_stats[i].name,
423 sizeof(ethtool_strings[i].name));
424 break;
425 case ETH_SS_TEST:
426 efx_ethtool_fill_self_tests(efx, NULL,
427 ethtool_strings, NULL);
428 break;
429 default:
430 /* No other string sets */
431 break;
432 }
433 }
434
435 static void efx_ethtool_get_stats(struct net_device *net_dev,
436 struct ethtool_stats *stats,
437 u64 *data)
438 {
439 struct efx_nic *efx = netdev_priv(net_dev);
440 struct efx_mac_stats *mac_stats = &efx->mac_stats;
441 struct efx_ethtool_stat *stat;
442 struct efx_channel *channel;
443 int i;
444
445 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
446
447 /* Update MAC and NIC statistics */
448 dev_get_stats(net_dev);
449
450 /* Fill detailed statistics buffer */
451 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
452 stat = &efx_ethtool_stats[i];
453 switch (stat->source) {
454 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
455 data[i] = stat->get_stat((void *)mac_stats +
456 stat->offset);
457 break;
458 case EFX_ETHTOOL_STAT_SOURCE_nic:
459 data[i] = stat->get_stat((void *)efx + stat->offset);
460 break;
461 case EFX_ETHTOOL_STAT_SOURCE_channel:
462 data[i] = 0;
463 efx_for_each_channel(channel, efx)
464 data[i] += stat->get_stat((void *)channel +
465 stat->offset);
466 break;
467 }
468 }
469 }
470
471 static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
472 {
473 struct efx_nic *efx = netdev_priv(net_dev);
474
475 /* No way to stop the hardware doing the checks; we just
476 * ignore the result.
477 */
478 efx->rx_checksum_enabled = !!enable;
479
480 return 0;
481 }
482
483 static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
484 {
485 struct efx_nic *efx = netdev_priv(net_dev);
486
487 return efx->rx_checksum_enabled;
488 }
489
490 static void efx_ethtool_self_test(struct net_device *net_dev,
491 struct ethtool_test *test, u64 *data)
492 {
493 struct efx_nic *efx = netdev_priv(net_dev);
494 struct efx_self_tests efx_tests;
495 int already_up;
496 int rc;
497
498 ASSERT_RTNL();
499 if (efx->state != STATE_RUNNING) {
500 rc = -EIO;
501 goto fail1;
502 }
503
504 /* We need rx buffers and interrupts. */
505 already_up = (efx->net_dev->flags & IFF_UP);
506 if (!already_up) {
507 rc = dev_open(efx->net_dev);
508 if (rc) {
509 EFX_ERR(efx, "failed opening device.\n");
510 goto fail2;
511 }
512 }
513
514 memset(&efx_tests, 0, sizeof(efx_tests));
515
516 rc = efx_selftest(efx, &efx_tests, test->flags);
517
518 if (!already_up)
519 dev_close(efx->net_dev);
520
521 EFX_LOG(efx, "%s %sline self-tests\n",
522 rc == 0 ? "passed" : "failed",
523 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
524
525 fail2:
526 fail1:
527 /* Fill ethtool results structures */
528 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
529 if (rc)
530 test->flags |= ETH_TEST_FL_FAILED;
531 }
532
533 /* Restart autonegotiation */
534 static int efx_ethtool_nway_reset(struct net_device *net_dev)
535 {
536 struct efx_nic *efx = netdev_priv(net_dev);
537
538 return mdio45_nway_restart(&efx->mdio);
539 }
540
541 static u32 efx_ethtool_get_link(struct net_device *net_dev)
542 {
543 struct efx_nic *efx = netdev_priv(net_dev);
544
545 return efx->link_state.up;
546 }
547
548 static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
549 {
550 struct efx_nic *efx = netdev_priv(net_dev);
551 struct efx_spi_device *spi = efx->spi_eeprom;
552
553 if (!spi)
554 return 0;
555 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
556 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
557 }
558
559 static int efx_ethtool_get_eeprom(struct net_device *net_dev,
560 struct ethtool_eeprom *eeprom, u8 *buf)
561 {
562 struct efx_nic *efx = netdev_priv(net_dev);
563 struct efx_spi_device *spi = efx->spi_eeprom;
564 size_t len;
565 int rc;
566
567 rc = mutex_lock_interruptible(&efx->spi_lock);
568 if (rc)
569 return rc;
570 rc = falcon_spi_read(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
571 eeprom->len, &len, buf);
572 mutex_unlock(&efx->spi_lock);
573
574 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
575 eeprom->len = len;
576 return rc;
577 }
578
579 static int efx_ethtool_set_eeprom(struct net_device *net_dev,
580 struct ethtool_eeprom *eeprom, u8 *buf)
581 {
582 struct efx_nic *efx = netdev_priv(net_dev);
583 struct efx_spi_device *spi = efx->spi_eeprom;
584 size_t len;
585 int rc;
586
587 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
588 return -EINVAL;
589
590 rc = mutex_lock_interruptible(&efx->spi_lock);
591 if (rc)
592 return rc;
593 rc = falcon_spi_write(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
594 eeprom->len, &len, buf);
595 mutex_unlock(&efx->spi_lock);
596
597 eeprom->len = len;
598 return rc;
599 }
600
601 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
602 struct ethtool_coalesce *coalesce)
603 {
604 struct efx_nic *efx = netdev_priv(net_dev);
605 struct efx_tx_queue *tx_queue;
606 struct efx_channel *channel;
607
608 memset(coalesce, 0, sizeof(*coalesce));
609
610 /* Find lowest IRQ moderation across all used TX queues */
611 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
612 efx_for_each_tx_queue(tx_queue, efx) {
613 channel = tx_queue->channel;
614 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
615 if (channel->used_flags != EFX_USED_BY_RX_TX)
616 coalesce->tx_coalesce_usecs_irq =
617 channel->irq_moderation;
618 else
619 coalesce->tx_coalesce_usecs_irq = 0;
620 }
621 }
622
623 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
624 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
625
626 coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
627 coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
628
629 return 0;
630 }
631
632 /* Set coalescing parameters
633 * The difficulties occur for shared channels
634 */
635 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
636 struct ethtool_coalesce *coalesce)
637 {
638 struct efx_nic *efx = netdev_priv(net_dev);
639 struct efx_channel *channel;
640 struct efx_tx_queue *tx_queue;
641 unsigned tx_usecs, rx_usecs, adaptive;
642
643 if (coalesce->use_adaptive_tx_coalesce)
644 return -EOPNOTSUPP;
645
646 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
647 EFX_ERR(efx, "invalid coalescing setting. "
648 "Only rx/tx_coalesce_usecs_irq are supported\n");
649 return -EOPNOTSUPP;
650 }
651
652 rx_usecs = coalesce->rx_coalesce_usecs_irq;
653 tx_usecs = coalesce->tx_coalesce_usecs_irq;
654 adaptive = coalesce->use_adaptive_rx_coalesce;
655
656 /* If the channel is shared only allow RX parameters to be set */
657 efx_for_each_tx_queue(tx_queue, efx) {
658 if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
659 tx_usecs) {
660 EFX_ERR(efx, "Channel is shared. "
661 "Only RX coalescing may be set\n");
662 return -EOPNOTSUPP;
663 }
664 }
665
666 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
667 efx_for_each_channel(channel, efx)
668 efx->type->push_irq_moderation(channel);
669
670 return 0;
671 }
672
673 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
674 struct ethtool_pauseparam *pause)
675 {
676 struct efx_nic *efx = netdev_priv(net_dev);
677 enum efx_fc_type wanted_fc, old_fc;
678 u32 old_adv;
679 bool reset;
680 int rc = 0;
681
682 mutex_lock(&efx->mac_lock);
683
684 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
685 (pause->tx_pause ? EFX_FC_TX : 0) |
686 (pause->autoneg ? EFX_FC_AUTO : 0));
687
688 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
689 EFX_LOG(efx, "Flow control unsupported: tx ON rx OFF\n");
690 rc = -EINVAL;
691 goto out;
692 }
693
694 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
695 EFX_LOG(efx, "Autonegotiation is disabled\n");
696 rc = -EINVAL;
697 goto out;
698 }
699
700 /* TX flow control may automatically turn itself off if the
701 * link partner (intermittently) stops responding to pause
702 * frames. There isn't any indication that this has happened,
703 * so the best we do is leave it up to the user to spot this
704 * and fix it be cycling transmit flow control on this end. */
705 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
706 if (EFX_WORKAROUND_11482(efx) && reset) {
707 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
708 /* Recover by resetting the EM block */
709 falcon_stop_nic_stats(efx);
710 falcon_drain_tx_fifo(efx);
711 efx->mac_op->reconfigure(efx);
712 falcon_start_nic_stats(efx);
713 } else {
714 /* Schedule a reset to recover */
715 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
716 }
717 }
718
719 old_adv = efx->link_advertising;
720 old_fc = efx->wanted_fc;
721 efx_link_set_wanted_fc(efx, wanted_fc);
722 if (efx->link_advertising != old_adv ||
723 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
724 rc = efx->phy_op->reconfigure(efx);
725 if (rc) {
726 EFX_ERR(efx, "Unable to advertise requested flow "
727 "control setting\n");
728 goto out;
729 }
730 }
731
732 /* Reconfigure the MAC. The PHY *may* generate a link state change event
733 * if the user just changed the advertised capabilities, but there's no
734 * harm doing this twice */
735 efx->mac_op->reconfigure(efx);
736
737 out:
738 mutex_unlock(&efx->mac_lock);
739
740 return rc;
741 }
742
743 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
744 struct ethtool_pauseparam *pause)
745 {
746 struct efx_nic *efx = netdev_priv(net_dev);
747
748 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
749 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
750 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
751 }
752
753
754 static void efx_ethtool_get_wol(struct net_device *net_dev,
755 struct ethtool_wolinfo *wol)
756 {
757 struct efx_nic *efx = netdev_priv(net_dev);
758 return efx->type->get_wol(efx, wol);
759 }
760
761
762 static int efx_ethtool_set_wol(struct net_device *net_dev,
763 struct ethtool_wolinfo *wol)
764 {
765 struct efx_nic *efx = netdev_priv(net_dev);
766 return efx->type->set_wol(efx, wol->wolopts);
767 }
768
769 extern int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
770 {
771 struct efx_nic *efx = netdev_priv(net_dev);
772 enum reset_type method;
773 enum {
774 ETH_RESET_EFX_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
775 ETH_RESET_OFFLOAD | ETH_RESET_MAC)
776 };
777
778 /* Check for minimal reset flags */
779 if ((*flags & ETH_RESET_EFX_INVISIBLE) != ETH_RESET_EFX_INVISIBLE)
780 return -EINVAL;
781 *flags ^= ETH_RESET_EFX_INVISIBLE;
782 method = RESET_TYPE_INVISIBLE;
783
784 if (*flags & ETH_RESET_PHY) {
785 *flags ^= ETH_RESET_PHY;
786 method = RESET_TYPE_ALL;
787 }
788
789 if ((*flags & efx->type->reset_world_flags) ==
790 efx->type->reset_world_flags) {
791 *flags ^= efx->type->reset_world_flags;
792 method = RESET_TYPE_WORLD;
793 }
794
795 return efx_reset(efx, method);
796 }
797
798 const struct ethtool_ops efx_ethtool_ops = {
799 .get_settings = efx_ethtool_get_settings,
800 .set_settings = efx_ethtool_set_settings,
801 .get_drvinfo = efx_ethtool_get_drvinfo,
802 .nway_reset = efx_ethtool_nway_reset,
803 .get_link = efx_ethtool_get_link,
804 .get_eeprom_len = efx_ethtool_get_eeprom_len,
805 .get_eeprom = efx_ethtool_get_eeprom,
806 .set_eeprom = efx_ethtool_set_eeprom,
807 .get_coalesce = efx_ethtool_get_coalesce,
808 .set_coalesce = efx_ethtool_set_coalesce,
809 .get_pauseparam = efx_ethtool_get_pauseparam,
810 .set_pauseparam = efx_ethtool_set_pauseparam,
811 .get_rx_csum = efx_ethtool_get_rx_csum,
812 .set_rx_csum = efx_ethtool_set_rx_csum,
813 .get_tx_csum = ethtool_op_get_tx_csum,
814 .set_tx_csum = ethtool_op_set_tx_csum,
815 .get_sg = ethtool_op_get_sg,
816 .set_sg = ethtool_op_set_sg,
817 .get_tso = ethtool_op_get_tso,
818 .set_tso = ethtool_op_set_tso,
819 .get_flags = ethtool_op_get_flags,
820 .set_flags = ethtool_op_set_flags,
821 .get_sset_count = efx_ethtool_get_sset_count,
822 .self_test = efx_ethtool_self_test,
823 .get_strings = efx_ethtool_get_strings,
824 .phys_id = efx_ethtool_phys_id,
825 .get_ethtool_stats = efx_ethtool_get_stats,
826 .get_wol = efx_ethtool_get_wol,
827 .set_wol = efx_ethtool_set_wol,
828 .reset = efx_ethtool_reset,
829 };
Linux kernel - Deliverables
This page took 0.050404 seconds and 5 git commands to generate.