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sfc: Disable setting feature flags that are not implemented
[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 2006-2009 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 "nic.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 /* 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 /* GMAC does not support 1000Mbps HD */
220 if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
221 netif_dbg(efx, drv, efx->net_dev,
222 "rejecting unsupported 1000Mbps HD 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, KBUILD_MODNAME, sizeof(info->driver));
238 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
239 if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
240 siena_print_fwver(efx, info->fw_version,
241 sizeof(info->fw_version));
242 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
243 }
244
245 static int efx_ethtool_get_regs_len(struct net_device *net_dev)
246 {
247 return efx_nic_get_regs_len(netdev_priv(net_dev));
248 }
249
250 static void efx_ethtool_get_regs(struct net_device *net_dev,
251 struct ethtool_regs *regs, void *buf)
252 {
253 struct efx_nic *efx = netdev_priv(net_dev);
254
255 regs->version = efx->type->revision;
256 efx_nic_get_regs(efx, buf);
257 }
258
259 static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
260 {
261 struct efx_nic *efx = netdev_priv(net_dev);
262 return efx->msg_enable;
263 }
264
265 static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
266 {
267 struct efx_nic *efx = netdev_priv(net_dev);
268 efx->msg_enable = msg_enable;
269 }
270
271 /**
272 * efx_fill_test - fill in an individual self-test entry
273 * @test_index: Index of the test
274 * @strings: Ethtool strings, or %NULL
275 * @data: Ethtool test results, or %NULL
276 * @test: Pointer to test result (used only if data != %NULL)
277 * @unit_format: Unit name format (e.g. "chan\%d")
278 * @unit_id: Unit id (e.g. 0 for "chan0")
279 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
280 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
281 *
282 * Fill in an individual self-test entry.
283 */
284 static void efx_fill_test(unsigned int test_index,
285 struct ethtool_string *strings, u64 *data,
286 int *test, const char *unit_format, int unit_id,
287 const char *test_format, const char *test_id)
288 {
289 struct ethtool_string unit_str, test_str;
290
291 /* Fill data value, if applicable */
292 if (data)
293 data[test_index] = *test;
294
295 /* Fill string, if applicable */
296 if (strings) {
297 if (strchr(unit_format, '%'))
298 snprintf(unit_str.name, sizeof(unit_str.name),
299 unit_format, unit_id);
300 else
301 strcpy(unit_str.name, unit_format);
302 snprintf(test_str.name, sizeof(test_str.name),
303 test_format, test_id);
304 snprintf(strings[test_index].name,
305 sizeof(strings[test_index].name),
306 "%-6s %-24s", unit_str.name, test_str.name);
307 }
308 }
309
310 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
311 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
312 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
313 #define EFX_LOOPBACK_NAME(_mode, _counter) \
314 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
315
316 /**
317 * efx_fill_loopback_test - fill in a block of loopback self-test entries
318 * @efx: Efx NIC
319 * @lb_tests: Efx loopback self-test results structure
320 * @mode: Loopback test mode
321 * @test_index: Starting index of the test
322 * @strings: Ethtool strings, or %NULL
323 * @data: Ethtool test results, or %NULL
324 */
325 static int efx_fill_loopback_test(struct efx_nic *efx,
326 struct efx_loopback_self_tests *lb_tests,
327 enum efx_loopback_mode mode,
328 unsigned int test_index,
329 struct ethtool_string *strings, u64 *data)
330 {
331 struct efx_tx_queue *tx_queue;
332
333 efx_for_each_channel_tx_queue(tx_queue, &efx->channel[0]) {
334 efx_fill_test(test_index++, strings, data,
335 &lb_tests->tx_sent[tx_queue->queue],
336 EFX_TX_QUEUE_NAME(tx_queue),
337 EFX_LOOPBACK_NAME(mode, "tx_sent"));
338 efx_fill_test(test_index++, strings, data,
339 &lb_tests->tx_done[tx_queue->queue],
340 EFX_TX_QUEUE_NAME(tx_queue),
341 EFX_LOOPBACK_NAME(mode, "tx_done"));
342 }
343 efx_fill_test(test_index++, strings, data,
344 &lb_tests->rx_good,
345 "rx", 0,
346 EFX_LOOPBACK_NAME(mode, "rx_good"));
347 efx_fill_test(test_index++, strings, data,
348 &lb_tests->rx_bad,
349 "rx", 0,
350 EFX_LOOPBACK_NAME(mode, "rx_bad"));
351
352 return test_index;
353 }
354
355 /**
356 * efx_ethtool_fill_self_tests - get self-test details
357 * @efx: Efx NIC
358 * @tests: Efx self-test results structure, or %NULL
359 * @strings: Ethtool strings, or %NULL
360 * @data: Ethtool test results, or %NULL
361 */
362 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
363 struct efx_self_tests *tests,
364 struct ethtool_string *strings,
365 u64 *data)
366 {
367 struct efx_channel *channel;
368 unsigned int n = 0, i;
369 enum efx_loopback_mode mode;
370
371 efx_fill_test(n++, strings, data, &tests->phy_alive,
372 "phy", 0, "alive", NULL);
373 efx_fill_test(n++, strings, data, &tests->nvram,
374 "core", 0, "nvram", NULL);
375 efx_fill_test(n++, strings, data, &tests->interrupt,
376 "core", 0, "interrupt", NULL);
377
378 /* Event queues */
379 efx_for_each_channel(channel, efx) {
380 efx_fill_test(n++, strings, data,
381 &tests->eventq_dma[channel->channel],
382 EFX_CHANNEL_NAME(channel),
383 "eventq.dma", NULL);
384 efx_fill_test(n++, strings, data,
385 &tests->eventq_int[channel->channel],
386 EFX_CHANNEL_NAME(channel),
387 "eventq.int", NULL);
388 efx_fill_test(n++, strings, data,
389 &tests->eventq_poll[channel->channel],
390 EFX_CHANNEL_NAME(channel),
391 "eventq.poll", NULL);
392 }
393
394 efx_fill_test(n++, strings, data, &tests->registers,
395 "core", 0, "registers", NULL);
396
397 if (efx->phy_op->run_tests != NULL) {
398 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
399
400 for (i = 0; true; ++i) {
401 const char *name;
402
403 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
404 name = efx->phy_op->test_name(efx, i);
405 if (name == NULL)
406 break;
407
408 efx_fill_test(n++, strings, data, &tests->phy_ext[i],
409 "phy", 0, name, NULL);
410 }
411 }
412
413 /* Loopback tests */
414 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
415 if (!(efx->loopback_modes & (1 << mode)))
416 continue;
417 n = efx_fill_loopback_test(efx,
418 &tests->loopback[mode], mode, n,
419 strings, data);
420 }
421
422 return n;
423 }
424
425 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
426 int string_set)
427 {
428 switch (string_set) {
429 case ETH_SS_STATS:
430 return EFX_ETHTOOL_NUM_STATS;
431 case ETH_SS_TEST:
432 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
433 NULL, NULL, NULL);
434 default:
435 return -EINVAL;
436 }
437 }
438
439 static void efx_ethtool_get_strings(struct net_device *net_dev,
440 u32 string_set, u8 *strings)
441 {
442 struct efx_nic *efx = netdev_priv(net_dev);
443 struct ethtool_string *ethtool_strings =
444 (struct ethtool_string *)strings;
445 int i;
446
447 switch (string_set) {
448 case ETH_SS_STATS:
449 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
450 strncpy(ethtool_strings[i].name,
451 efx_ethtool_stats[i].name,
452 sizeof(ethtool_strings[i].name));
453 break;
454 case ETH_SS_TEST:
455 efx_ethtool_fill_self_tests(efx, NULL,
456 ethtool_strings, NULL);
457 break;
458 default:
459 /* No other string sets */
460 break;
461 }
462 }
463
464 static void efx_ethtool_get_stats(struct net_device *net_dev,
465 struct ethtool_stats *stats,
466 u64 *data)
467 {
468 struct efx_nic *efx = netdev_priv(net_dev);
469 struct efx_mac_stats *mac_stats = &efx->mac_stats;
470 struct efx_ethtool_stat *stat;
471 struct efx_channel *channel;
472 int i;
473
474 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
475
476 /* Update MAC and NIC statistics */
477 dev_get_stats(net_dev);
478
479 /* Fill detailed statistics buffer */
480 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
481 stat = &efx_ethtool_stats[i];
482 switch (stat->source) {
483 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
484 data[i] = stat->get_stat((void *)mac_stats +
485 stat->offset);
486 break;
487 case EFX_ETHTOOL_STAT_SOURCE_nic:
488 data[i] = stat->get_stat((void *)efx + stat->offset);
489 break;
490 case EFX_ETHTOOL_STAT_SOURCE_channel:
491 data[i] = 0;
492 efx_for_each_channel(channel, efx)
493 data[i] += stat->get_stat((void *)channel +
494 stat->offset);
495 break;
496 }
497 }
498 }
499
500 static int efx_ethtool_set_tso(struct net_device *net_dev, u32 enable)
501 {
502 struct efx_nic *efx __attribute__ ((unused)) = netdev_priv(net_dev);
503 unsigned long features;
504
505 features = NETIF_F_TSO;
506 if (efx->type->offload_features & NETIF_F_V6_CSUM)
507 features |= NETIF_F_TSO6;
508
509 if (enable)
510 net_dev->features |= features;
511 else
512 net_dev->features &= ~features;
513
514 return 0;
515 }
516
517 static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
518 {
519 struct efx_nic *efx = netdev_priv(net_dev);
520 unsigned long features = efx->type->offload_features & NETIF_F_ALL_CSUM;
521
522 if (enable)
523 net_dev->features |= features;
524 else
525 net_dev->features &= ~features;
526
527 return 0;
528 }
529
530 static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
531 {
532 struct efx_nic *efx = netdev_priv(net_dev);
533
534 /* No way to stop the hardware doing the checks; we just
535 * ignore the result.
536 */
537 efx->rx_checksum_enabled = !!enable;
538
539 return 0;
540 }
541
542 static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
543 {
544 struct efx_nic *efx = netdev_priv(net_dev);
545
546 return efx->rx_checksum_enabled;
547 }
548
549 static void efx_ethtool_self_test(struct net_device *net_dev,
550 struct ethtool_test *test, u64 *data)
551 {
552 struct efx_nic *efx = netdev_priv(net_dev);
553 struct efx_self_tests efx_tests;
554 int already_up;
555 int rc;
556
557 ASSERT_RTNL();
558 if (efx->state != STATE_RUNNING) {
559 rc = -EIO;
560 goto fail1;
561 }
562
563 /* We need rx buffers and interrupts. */
564 already_up = (efx->net_dev->flags & IFF_UP);
565 if (!already_up) {
566 rc = dev_open(efx->net_dev);
567 if (rc) {
568 netif_err(efx, drv, efx->net_dev,
569 "failed opening device.\n");
570 goto fail2;
571 }
572 }
573
574 memset(&efx_tests, 0, sizeof(efx_tests));
575
576 rc = efx_selftest(efx, &efx_tests, test->flags);
577
578 if (!already_up)
579 dev_close(efx->net_dev);
580
581 netif_dbg(efx, drv, efx->net_dev, "%s %sline self-tests\n",
582 rc == 0 ? "passed" : "failed",
583 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
584
585 fail2:
586 fail1:
587 /* Fill ethtool results structures */
588 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
589 if (rc)
590 test->flags |= ETH_TEST_FL_FAILED;
591 }
592
593 /* Restart autonegotiation */
594 static int efx_ethtool_nway_reset(struct net_device *net_dev)
595 {
596 struct efx_nic *efx = netdev_priv(net_dev);
597
598 return mdio45_nway_restart(&efx->mdio);
599 }
600
601 static u32 efx_ethtool_get_link(struct net_device *net_dev)
602 {
603 struct efx_nic *efx = netdev_priv(net_dev);
604
605 return efx->link_state.up;
606 }
607
608 static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
609 {
610 struct efx_nic *efx = netdev_priv(net_dev);
611 struct efx_spi_device *spi = efx->spi_eeprom;
612
613 if (!spi)
614 return 0;
615 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
616 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
617 }
618
619 static int efx_ethtool_get_eeprom(struct net_device *net_dev,
620 struct ethtool_eeprom *eeprom, u8 *buf)
621 {
622 struct efx_nic *efx = netdev_priv(net_dev);
623 struct efx_spi_device *spi = efx->spi_eeprom;
624 size_t len;
625 int rc;
626
627 rc = mutex_lock_interruptible(&efx->spi_lock);
628 if (rc)
629 return rc;
630 rc = falcon_spi_read(efx, spi,
631 eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
632 eeprom->len, &len, buf);
633 mutex_unlock(&efx->spi_lock);
634
635 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
636 eeprom->len = len;
637 return rc;
638 }
639
640 static int efx_ethtool_set_eeprom(struct net_device *net_dev,
641 struct ethtool_eeprom *eeprom, u8 *buf)
642 {
643 struct efx_nic *efx = netdev_priv(net_dev);
644 struct efx_spi_device *spi = efx->spi_eeprom;
645 size_t len;
646 int rc;
647
648 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
649 return -EINVAL;
650
651 rc = mutex_lock_interruptible(&efx->spi_lock);
652 if (rc)
653 return rc;
654 rc = falcon_spi_write(efx, spi,
655 eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
656 eeprom->len, &len, buf);
657 mutex_unlock(&efx->spi_lock);
658
659 eeprom->len = len;
660 return rc;
661 }
662
663 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
664 struct ethtool_coalesce *coalesce)
665 {
666 struct efx_nic *efx = netdev_priv(net_dev);
667 struct efx_tx_queue *tx_queue;
668 struct efx_channel *channel;
669
670 memset(coalesce, 0, sizeof(*coalesce));
671
672 /* Find lowest IRQ moderation across all used TX queues */
673 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
674 efx_for_each_tx_queue(tx_queue, efx) {
675 channel = tx_queue->channel;
676 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
677 if (channel->channel < efx->n_rx_channels)
678 coalesce->tx_coalesce_usecs_irq =
679 channel->irq_moderation;
680 else
681 coalesce->tx_coalesce_usecs_irq = 0;
682 }
683 }
684
685 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
686 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
687
688 coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
689 coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
690
691 return 0;
692 }
693
694 /* Set coalescing parameters
695 * The difficulties occur for shared channels
696 */
697 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
698 struct ethtool_coalesce *coalesce)
699 {
700 struct efx_nic *efx = netdev_priv(net_dev);
701 struct efx_channel *channel;
702 struct efx_tx_queue *tx_queue;
703 unsigned tx_usecs, rx_usecs, adaptive;
704
705 if (coalesce->use_adaptive_tx_coalesce)
706 return -EOPNOTSUPP;
707
708 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
709 netif_err(efx, drv, efx->net_dev, "invalid coalescing setting. "
710 "Only rx/tx_coalesce_usecs_irq are supported\n");
711 return -EOPNOTSUPP;
712 }
713
714 rx_usecs = coalesce->rx_coalesce_usecs_irq;
715 tx_usecs = coalesce->tx_coalesce_usecs_irq;
716 adaptive = coalesce->use_adaptive_rx_coalesce;
717
718 /* If the channel is shared only allow RX parameters to be set */
719 efx_for_each_tx_queue(tx_queue, efx) {
720 if ((tx_queue->channel->channel < efx->n_rx_channels) &&
721 tx_usecs) {
722 netif_err(efx, drv, efx->net_dev, "Channel is shared. "
723 "Only RX coalescing may be set\n");
724 return -EOPNOTSUPP;
725 }
726 }
727
728 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
729 efx_for_each_channel(channel, efx)
730 efx->type->push_irq_moderation(channel);
731
732 return 0;
733 }
734
735 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
736 struct ethtool_pauseparam *pause)
737 {
738 struct efx_nic *efx = netdev_priv(net_dev);
739 enum efx_fc_type wanted_fc, old_fc;
740 u32 old_adv;
741 bool reset;
742 int rc = 0;
743
744 mutex_lock(&efx->mac_lock);
745
746 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
747 (pause->tx_pause ? EFX_FC_TX : 0) |
748 (pause->autoneg ? EFX_FC_AUTO : 0));
749
750 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
751 netif_dbg(efx, drv, efx->net_dev,
752 "Flow control unsupported: tx ON rx OFF\n");
753 rc = -EINVAL;
754 goto out;
755 }
756
757 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
758 netif_dbg(efx, drv, efx->net_dev,
759 "Autonegotiation is disabled\n");
760 rc = -EINVAL;
761 goto out;
762 }
763
764 /* TX flow control may automatically turn itself off if the
765 * link partner (intermittently) stops responding to pause
766 * frames. There isn't any indication that this has happened,
767 * so the best we do is leave it up to the user to spot this
768 * and fix it be cycling transmit flow control on this end. */
769 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
770 if (EFX_WORKAROUND_11482(efx) && reset) {
771 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
772 /* Recover by resetting the EM block */
773 falcon_stop_nic_stats(efx);
774 falcon_drain_tx_fifo(efx);
775 efx->mac_op->reconfigure(efx);
776 falcon_start_nic_stats(efx);
777 } else {
778 /* Schedule a reset to recover */
779 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
780 }
781 }
782
783 old_adv = efx->link_advertising;
784 old_fc = efx->wanted_fc;
785 efx_link_set_wanted_fc(efx, wanted_fc);
786 if (efx->link_advertising != old_adv ||
787 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
788 rc = efx->phy_op->reconfigure(efx);
789 if (rc) {
790 netif_err(efx, drv, efx->net_dev,
791 "Unable to advertise requested flow "
792 "control setting\n");
793 goto out;
794 }
795 }
796
797 /* Reconfigure the MAC. The PHY *may* generate a link state change event
798 * if the user just changed the advertised capabilities, but there's no
799 * harm doing this twice */
800 efx->mac_op->reconfigure(efx);
801
802 out:
803 mutex_unlock(&efx->mac_lock);
804
805 return rc;
806 }
807
808 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
809 struct ethtool_pauseparam *pause)
810 {
811 struct efx_nic *efx = netdev_priv(net_dev);
812
813 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
814 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
815 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
816 }
817
818
819 static void efx_ethtool_get_wol(struct net_device *net_dev,
820 struct ethtool_wolinfo *wol)
821 {
822 struct efx_nic *efx = netdev_priv(net_dev);
823 return efx->type->get_wol(efx, wol);
824 }
825
826
827 static int efx_ethtool_set_wol(struct net_device *net_dev,
828 struct ethtool_wolinfo *wol)
829 {
830 struct efx_nic *efx = netdev_priv(net_dev);
831 return efx->type->set_wol(efx, wol->wolopts);
832 }
833
834 extern int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
835 {
836 struct efx_nic *efx = netdev_priv(net_dev);
837 enum reset_type method;
838 enum {
839 ETH_RESET_EFX_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
840 ETH_RESET_OFFLOAD | ETH_RESET_MAC)
841 };
842
843 /* Check for minimal reset flags */
844 if ((*flags & ETH_RESET_EFX_INVISIBLE) != ETH_RESET_EFX_INVISIBLE)
845 return -EINVAL;
846 *flags ^= ETH_RESET_EFX_INVISIBLE;
847 method = RESET_TYPE_INVISIBLE;
848
849 if (*flags & ETH_RESET_PHY) {
850 *flags ^= ETH_RESET_PHY;
851 method = RESET_TYPE_ALL;
852 }
853
854 if ((*flags & efx->type->reset_world_flags) ==
855 efx->type->reset_world_flags) {
856 *flags ^= efx->type->reset_world_flags;
857 method = RESET_TYPE_WORLD;
858 }
859
860 return efx_reset(efx, method);
861 }
862
863 const struct ethtool_ops efx_ethtool_ops = {
864 .get_settings = efx_ethtool_get_settings,
865 .set_settings = efx_ethtool_set_settings,
866 .get_drvinfo = efx_ethtool_get_drvinfo,
867 .get_regs_len = efx_ethtool_get_regs_len,
868 .get_regs = efx_ethtool_get_regs,
869 .get_msglevel = efx_ethtool_get_msglevel,
870 .set_msglevel = efx_ethtool_set_msglevel,
871 .nway_reset = efx_ethtool_nway_reset,
872 .get_link = efx_ethtool_get_link,
873 .get_eeprom_len = efx_ethtool_get_eeprom_len,
874 .get_eeprom = efx_ethtool_get_eeprom,
875 .set_eeprom = efx_ethtool_set_eeprom,
876 .get_coalesce = efx_ethtool_get_coalesce,
877 .set_coalesce = efx_ethtool_set_coalesce,
878 .get_pauseparam = efx_ethtool_get_pauseparam,
879 .set_pauseparam = efx_ethtool_set_pauseparam,
880 .get_rx_csum = efx_ethtool_get_rx_csum,
881 .set_rx_csum = efx_ethtool_set_rx_csum,
882 .get_tx_csum = ethtool_op_get_tx_csum,
883 /* Need to enable/disable IPv6 too */
884 .set_tx_csum = efx_ethtool_set_tx_csum,
885 .get_sg = ethtool_op_get_sg,
886 .set_sg = ethtool_op_set_sg,
887 .get_tso = ethtool_op_get_tso,
888 /* Need to enable/disable TSO-IPv6 too */
889 .set_tso = efx_ethtool_set_tso,
890 .get_flags = ethtool_op_get_flags,
891 .get_sset_count = efx_ethtool_get_sset_count,
892 .self_test = efx_ethtool_self_test,
893 .get_strings = efx_ethtool_get_strings,
894 .phys_id = efx_ethtool_phys_id,
895 .get_ethtool_stats = efx_ethtool_get_stats,
896 .get_wol = efx_ethtool_get_wol,
897 .set_wol = efx_ethtool_set_wol,
898 .reset = efx_ethtool_reset,
899 };
Linux kernel - Deliverables
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