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Linux 3.4.102
[linux/fpc-iii.git] / drivers / net / ethernet / sfc / ethtool.c
blobff64def0ffd7b089832cde21c9acef4c8ddce96a
1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2010 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 <linux/in.h>
15 #include "net_driver.h"
16 #include "workarounds.h"
17 #include "selftest.h"
18 #include "efx.h"
19 #include "filter.h"
20 #include "nic.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 EFX_ETHTOOL_STAT_SOURCE_tx_queue
33 } source;
34 unsigned offset;
35 u64(*get_stat) (void *field); /* Reader function */
36 };
37
38 /* Initialiser for a struct #efx_ethtool_stat with type-checking */
39 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
40 get_stat_function) { \
41 .name = #stat_name, \
42 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
43 .offset = ((((field_type *) 0) == \
44 &((struct efx_##source_name *)0)->field) ? \
45 offsetof(struct efx_##source_name, field) : \
46 offsetof(struct efx_##source_name, field)), \
47 .get_stat = get_stat_function, \
48 }
49
50 static u64 efx_get_uint_stat(void *field)
51 {
52 return *(unsigned int *)field;
53 }
54
55 static u64 efx_get_u64_stat(void *field)
56 {
57 return *(u64 *) field;
58 }
59
60 static u64 efx_get_atomic_stat(void *field)
61 {
62 return atomic_read((atomic_t *) field);
63 }
64
65 #define EFX_ETHTOOL_U64_MAC_STAT(field) \
66 EFX_ETHTOOL_STAT(field, mac_stats, field, \
67 u64, efx_get_u64_stat)
68
69 #define EFX_ETHTOOL_UINT_NIC_STAT(name) \
70 EFX_ETHTOOL_STAT(name, nic, n_##name, \
71 unsigned int, efx_get_uint_stat)
72
73 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
74 EFX_ETHTOOL_STAT(field, nic, field, \
75 atomic_t, efx_get_atomic_stat)
76
77 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
78 EFX_ETHTOOL_STAT(field, channel, n_##field, \
79 unsigned int, efx_get_uint_stat)
80
81 #define EFX_ETHTOOL_UINT_TXQ_STAT(field) \
82 EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \
83 unsigned int, efx_get_uint_stat)
84
85 static const struct efx_ethtool_stat efx_ethtool_stats[] = {
86 EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
87 EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
88 EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
89 EFX_ETHTOOL_U64_MAC_STAT(tx_packets),
90 EFX_ETHTOOL_U64_MAC_STAT(tx_bad),
91 EFX_ETHTOOL_U64_MAC_STAT(tx_pause),
92 EFX_ETHTOOL_U64_MAC_STAT(tx_control),
93 EFX_ETHTOOL_U64_MAC_STAT(tx_unicast),
94 EFX_ETHTOOL_U64_MAC_STAT(tx_multicast),
95 EFX_ETHTOOL_U64_MAC_STAT(tx_broadcast),
96 EFX_ETHTOOL_U64_MAC_STAT(tx_lt64),
97 EFX_ETHTOOL_U64_MAC_STAT(tx_64),
98 EFX_ETHTOOL_U64_MAC_STAT(tx_65_to_127),
99 EFX_ETHTOOL_U64_MAC_STAT(tx_128_to_255),
100 EFX_ETHTOOL_U64_MAC_STAT(tx_256_to_511),
101 EFX_ETHTOOL_U64_MAC_STAT(tx_512_to_1023),
102 EFX_ETHTOOL_U64_MAC_STAT(tx_1024_to_15xx),
103 EFX_ETHTOOL_U64_MAC_STAT(tx_15xx_to_jumbo),
104 EFX_ETHTOOL_U64_MAC_STAT(tx_gtjumbo),
105 EFX_ETHTOOL_U64_MAC_STAT(tx_collision),
106 EFX_ETHTOOL_U64_MAC_STAT(tx_single_collision),
107 EFX_ETHTOOL_U64_MAC_STAT(tx_multiple_collision),
108 EFX_ETHTOOL_U64_MAC_STAT(tx_excessive_collision),
109 EFX_ETHTOOL_U64_MAC_STAT(tx_deferred),
110 EFX_ETHTOOL_U64_MAC_STAT(tx_late_collision),
111 EFX_ETHTOOL_U64_MAC_STAT(tx_excessive_deferred),
112 EFX_ETHTOOL_U64_MAC_STAT(tx_non_tcpudp),
113 EFX_ETHTOOL_U64_MAC_STAT(tx_mac_src_error),
114 EFX_ETHTOOL_U64_MAC_STAT(tx_ip_src_error),
115 EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
116 EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
117 EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
118 EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
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_U64_MAC_STAT(rx_packets),
123 EFX_ETHTOOL_U64_MAC_STAT(rx_good),
124 EFX_ETHTOOL_U64_MAC_STAT(rx_bad),
125 EFX_ETHTOOL_U64_MAC_STAT(rx_pause),
126 EFX_ETHTOOL_U64_MAC_STAT(rx_control),
127 EFX_ETHTOOL_U64_MAC_STAT(rx_unicast),
128 EFX_ETHTOOL_U64_MAC_STAT(rx_multicast),
129 EFX_ETHTOOL_U64_MAC_STAT(rx_broadcast),
130 EFX_ETHTOOL_U64_MAC_STAT(rx_lt64),
131 EFX_ETHTOOL_U64_MAC_STAT(rx_64),
132 EFX_ETHTOOL_U64_MAC_STAT(rx_65_to_127),
133 EFX_ETHTOOL_U64_MAC_STAT(rx_128_to_255),
134 EFX_ETHTOOL_U64_MAC_STAT(rx_256_to_511),
135 EFX_ETHTOOL_U64_MAC_STAT(rx_512_to_1023),
136 EFX_ETHTOOL_U64_MAC_STAT(rx_1024_to_15xx),
137 EFX_ETHTOOL_U64_MAC_STAT(rx_15xx_to_jumbo),
138 EFX_ETHTOOL_U64_MAC_STAT(rx_gtjumbo),
139 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_lt64),
140 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_64_to_15xx),
141 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_15xx_to_jumbo),
142 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_gtjumbo),
143 EFX_ETHTOOL_U64_MAC_STAT(rx_overflow),
144 EFX_ETHTOOL_U64_MAC_STAT(rx_missed),
145 EFX_ETHTOOL_U64_MAC_STAT(rx_false_carrier),
146 EFX_ETHTOOL_U64_MAC_STAT(rx_symbol_error),
147 EFX_ETHTOOL_U64_MAC_STAT(rx_align_error),
148 EFX_ETHTOOL_U64_MAC_STAT(rx_length_error),
149 EFX_ETHTOOL_U64_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,
173 enum ethtool_phys_id_state state)
174 {
175 struct efx_nic *efx = netdev_priv(net_dev);
176 enum efx_led_mode mode = EFX_LED_DEFAULT;
177
178 switch (state) {
179 case ETHTOOL_ID_ON:
180 mode = EFX_LED_ON;
181 break;
182 case ETHTOOL_ID_OFF:
183 mode = EFX_LED_OFF;
184 break;
185 case ETHTOOL_ID_INACTIVE:
186 mode = EFX_LED_DEFAULT;
187 break;
188 case ETHTOOL_ID_ACTIVE:
189 return 1; /* cycle on/off once per second */
190 }
191
192 efx->type->set_id_led(efx, mode);
193 return 0;
194 }
195
196 /* This must be called with rtnl_lock held. */
197 static int efx_ethtool_get_settings(struct net_device *net_dev,
198 struct ethtool_cmd *ecmd)
199 {
200 struct efx_nic *efx = netdev_priv(net_dev);
201 struct efx_link_state *link_state = &efx->link_state;
202
203 mutex_lock(&efx->mac_lock);
204 efx->phy_op->get_settings(efx, ecmd);
205 mutex_unlock(&efx->mac_lock);
206
207 /* GMAC does not support 1000Mbps HD */
208 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
209 /* Both MACs support pause frames (bidirectional and respond-only) */
210 ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
211
212 if (LOOPBACK_INTERNAL(efx)) {
213 ethtool_cmd_speed_set(ecmd, link_state->speed);
214 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
215 }
216
217 return 0;
218 }
219
220 /* This must be called with rtnl_lock held. */
221 static int efx_ethtool_set_settings(struct net_device *net_dev,
222 struct ethtool_cmd *ecmd)
223 {
224 struct efx_nic *efx = netdev_priv(net_dev);
225 int rc;
226
227 /* GMAC does not support 1000Mbps HD */
228 if ((ethtool_cmd_speed(ecmd) == SPEED_1000) &&
229 (ecmd->duplex != DUPLEX_FULL)) {
230 netif_dbg(efx, drv, efx->net_dev,
231 "rejecting unsupported 1000Mbps HD setting\n");
232 return -EINVAL;
233 }
234
235 mutex_lock(&efx->mac_lock);
236 rc = efx->phy_op->set_settings(efx, ecmd);
237 mutex_unlock(&efx->mac_lock);
238 return rc;
239 }
240
241 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
242 struct ethtool_drvinfo *info)
243 {
244 struct efx_nic *efx = netdev_priv(net_dev);
245
246 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
247 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
248 if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
249 efx_mcdi_print_fwver(efx, info->fw_version,
250 sizeof(info->fw_version));
251 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
252 }
253
254 static int efx_ethtool_get_regs_len(struct net_device *net_dev)
255 {
256 return efx_nic_get_regs_len(netdev_priv(net_dev));
257 }
258
259 static void efx_ethtool_get_regs(struct net_device *net_dev,
260 struct ethtool_regs *regs, void *buf)
261 {
262 struct efx_nic *efx = netdev_priv(net_dev);
263
264 regs->version = efx->type->revision;
265 efx_nic_get_regs(efx, buf);
266 }
267
268 static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
269 {
270 struct efx_nic *efx = netdev_priv(net_dev);
271 return efx->msg_enable;
272 }
273
274 static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
275 {
276 struct efx_nic *efx = netdev_priv(net_dev);
277 efx->msg_enable = msg_enable;
278 }
279
280 /**
281 * efx_fill_test - fill in an individual self-test entry
282 * @test_index: Index of the test
283 * @strings: Ethtool strings, or %NULL
284 * @data: Ethtool test results, or %NULL
285 * @test: Pointer to test result (used only if data != %NULL)
286 * @unit_format: Unit name format (e.g. "chan\%d")
287 * @unit_id: Unit id (e.g. 0 for "chan0")
288 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
289 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
290 *
291 * Fill in an individual self-test entry.
292 */
293 static void efx_fill_test(unsigned int test_index,
294 struct ethtool_string *strings, u64 *data,
295 int *test, const char *unit_format, int unit_id,
296 const char *test_format, const char *test_id)
297 {
298 struct ethtool_string unit_str, test_str;
299
300 /* Fill data value, if applicable */
301 if (data)
302 data[test_index] = *test;
303
304 /* Fill string, if applicable */
305 if (strings) {
306 if (strchr(unit_format, '%'))
307 snprintf(unit_str.name, sizeof(unit_str.name),
308 unit_format, unit_id);
309 else
310 strcpy(unit_str.name, unit_format);
311 snprintf(test_str.name, sizeof(test_str.name),
312 test_format, test_id);
313 snprintf(strings[test_index].name,
314 sizeof(strings[test_index].name),
315 "%-6s %-24s", unit_str.name, test_str.name);
316 }
317 }
318
319 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
320 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
321 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
322 #define EFX_LOOPBACK_NAME(_mode, _counter) \
323 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
324
325 /**
326 * efx_fill_loopback_test - fill in a block of loopback self-test entries
327 * @efx: Efx NIC
328 * @lb_tests: Efx loopback self-test results structure
329 * @mode: Loopback test mode
330 * @test_index: Starting index of the test
331 * @strings: Ethtool strings, or %NULL
332 * @data: Ethtool test results, or %NULL
333 */
334 static int efx_fill_loopback_test(struct efx_nic *efx,
335 struct efx_loopback_self_tests *lb_tests,
336 enum efx_loopback_mode mode,
337 unsigned int test_index,
338 struct ethtool_string *strings, u64 *data)
339 {
340 struct efx_channel *channel = efx_get_channel(efx, 0);
341 struct efx_tx_queue *tx_queue;
342
343 efx_for_each_channel_tx_queue(tx_queue, channel) {
344 efx_fill_test(test_index++, strings, data,
345 &lb_tests->tx_sent[tx_queue->queue],
346 EFX_TX_QUEUE_NAME(tx_queue),
347 EFX_LOOPBACK_NAME(mode, "tx_sent"));
348 efx_fill_test(test_index++, strings, data,
349 &lb_tests->tx_done[tx_queue->queue],
350 EFX_TX_QUEUE_NAME(tx_queue),
351 EFX_LOOPBACK_NAME(mode, "tx_done"));
352 }
353 efx_fill_test(test_index++, strings, data,
354 &lb_tests->rx_good,
355 "rx", 0,
356 EFX_LOOPBACK_NAME(mode, "rx_good"));
357 efx_fill_test(test_index++, strings, data,
358 &lb_tests->rx_bad,
359 "rx", 0,
360 EFX_LOOPBACK_NAME(mode, "rx_bad"));
361
362 return test_index;
363 }
364
365 /**
366 * efx_ethtool_fill_self_tests - get self-test details
367 * @efx: Efx NIC
368 * @tests: Efx self-test results structure, or %NULL
369 * @strings: Ethtool strings, or %NULL
370 * @data: Ethtool test results, or %NULL
371 */
372 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
373 struct efx_self_tests *tests,
374 struct ethtool_string *strings,
375 u64 *data)
376 {
377 struct efx_channel *channel;
378 unsigned int n = 0, i;
379 enum efx_loopback_mode mode;
380
381 efx_fill_test(n++, strings, data, &tests->phy_alive,
382 "phy", 0, "alive", NULL);
383 efx_fill_test(n++, strings, data, &tests->nvram,
384 "core", 0, "nvram", NULL);
385 efx_fill_test(n++, strings, data, &tests->interrupt,
386 "core", 0, "interrupt", NULL);
387
388 /* Event queues */
389 efx_for_each_channel(channel, efx) {
390 efx_fill_test(n++, strings, data,
391 &tests->eventq_dma[channel->channel],
392 EFX_CHANNEL_NAME(channel),
393 "eventq.dma", NULL);
394 efx_fill_test(n++, strings, data,
395 &tests->eventq_int[channel->channel],
396 EFX_CHANNEL_NAME(channel),
397 "eventq.int", NULL);
398 }
399
400 efx_fill_test(n++, strings, data, &tests->registers,
401 "core", 0, "registers", NULL);
402
403 if (efx->phy_op->run_tests != NULL) {
404 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
405
406 for (i = 0; true; ++i) {
407 const char *name;
408
409 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
410 name = efx->phy_op->test_name(efx, i);
411 if (name == NULL)
412 break;
413
414 efx_fill_test(n++, strings, data, &tests->phy_ext[i],
415 "phy", 0, name, NULL);
416 }
417 }
418
419 /* Loopback tests */
420 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
421 if (!(efx->loopback_modes & (1 << mode)))
422 continue;
423 n = efx_fill_loopback_test(efx,
424 &tests->loopback[mode], mode, n,
425 strings, data);
426 }
427
428 return n;
429 }
430
431 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
432 int string_set)
433 {
434 switch (string_set) {
435 case ETH_SS_STATS:
436 return EFX_ETHTOOL_NUM_STATS;
437 case ETH_SS_TEST:
438 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
439 NULL, NULL, NULL);
440 default:
441 return -EINVAL;
442 }
443 }
444
445 static void efx_ethtool_get_strings(struct net_device *net_dev,
446 u32 string_set, u8 *strings)
447 {
448 struct efx_nic *efx = netdev_priv(net_dev);
449 struct ethtool_string *ethtool_strings =
450 (struct ethtool_string *)strings;
451 int i;
452
453 switch (string_set) {
454 case ETH_SS_STATS:
455 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
456 strncpy(ethtool_strings[i].name,
457 efx_ethtool_stats[i].name,
458 sizeof(ethtool_strings[i].name));
459 break;
460 case ETH_SS_TEST:
461 efx_ethtool_fill_self_tests(efx, NULL,
462 ethtool_strings, NULL);
463 break;
464 default:
465 /* No other string sets */
466 break;
467 }
468 }
469
470 static void efx_ethtool_get_stats(struct net_device *net_dev,
471 struct ethtool_stats *stats,
472 u64 *data)
473 {
474 struct efx_nic *efx = netdev_priv(net_dev);
475 struct efx_mac_stats *mac_stats = &efx->mac_stats;
476 const struct efx_ethtool_stat *stat;
477 struct efx_channel *channel;
478 struct efx_tx_queue *tx_queue;
479 int i;
480
481 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
482
483 spin_lock_bh(&efx->stats_lock);
484
485 /* Update MAC and NIC statistics */
486 efx->type->update_stats(efx);
487
488 /* Fill detailed statistics buffer */
489 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
490 stat = &efx_ethtool_stats[i];
491 switch (stat->source) {
492 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
493 data[i] = stat->get_stat((void *)mac_stats +
494 stat->offset);
495 break;
496 case EFX_ETHTOOL_STAT_SOURCE_nic:
497 data[i] = stat->get_stat((void *)efx + stat->offset);
498 break;
499 case EFX_ETHTOOL_STAT_SOURCE_channel:
500 data[i] = 0;
501 efx_for_each_channel(channel, efx)
502 data[i] += stat->get_stat((void *)channel +
503 stat->offset);
504 break;
505 case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
506 data[i] = 0;
507 efx_for_each_channel(channel, efx) {
508 efx_for_each_channel_tx_queue(tx_queue, channel)
509 data[i] +=
510 stat->get_stat((void *)tx_queue
511 + stat->offset);
512 }
513 break;
514 }
515 }
516
517 spin_unlock_bh(&efx->stats_lock);
518 }
519
520 static void efx_ethtool_self_test(struct net_device *net_dev,
521 struct ethtool_test *test, u64 *data)
522 {
523 struct efx_nic *efx = netdev_priv(net_dev);
524 struct efx_self_tests *efx_tests;
525 int already_up;
526 int rc = -ENOMEM;
527
528 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
529 if (!efx_tests)
530 goto fail;
531
532
533 ASSERT_RTNL();
534 if (efx->state != STATE_RUNNING) {
535 rc = -EIO;
536 goto fail1;
537 }
538
539 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
540 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
541
542 /* We need rx buffers and interrupts. */
543 already_up = (efx->net_dev->flags & IFF_UP);
544 if (!already_up) {
545 rc = dev_open(efx->net_dev);
546 if (rc) {
547 netif_err(efx, drv, efx->net_dev,
548 "failed opening device.\n");
549 goto fail1;
550 }
551 }
552
553 rc = efx_selftest(efx, efx_tests, test->flags);
554
555 if (!already_up)
556 dev_close(efx->net_dev);
557
558 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
559 rc == 0 ? "passed" : "failed",
560 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
561
562 fail1:
563 /* Fill ethtool results structures */
564 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
565 kfree(efx_tests);
566 fail:
567 if (rc)
568 test->flags |= ETH_TEST_FL_FAILED;
569 }
570
571 /* Restart autonegotiation */
572 static int efx_ethtool_nway_reset(struct net_device *net_dev)
573 {
574 struct efx_nic *efx = netdev_priv(net_dev);
575
576 return mdio45_nway_restart(&efx->mdio);
577 }
578
579 /*
580 * Each channel has a single IRQ and moderation timer, started by any
581 * completion (or other event). Unless the module parameter
582 * separate_tx_channels is set, IRQs and moderation are therefore
583 * shared between RX and TX completions. In this case, when RX IRQ
584 * moderation is explicitly changed then TX IRQ moderation is
585 * automatically changed too, but otherwise we fail if the two values
586 * are requested to be different.
587 *
588 * The hardware does not support a limit on the number of completions
589 * before an IRQ, so we do not use the max_frames fields. We should
590 * report and require that max_frames == (usecs != 0), but this would
591 * invalidate existing user documentation.
592 *
593 * The hardware does not have distinct settings for interrupt
594 * moderation while the previous IRQ is being handled, so we should
595 * not use the 'irq' fields. However, an earlier developer
596 * misunderstood the meaning of the 'irq' fields and the driver did
597 * not support the standard fields. To avoid invalidating existing
598 * user documentation, we report and accept changes through either the
599 * standard or 'irq' fields. If both are changed at the same time, we
600 * prefer the standard field.
601 *
602 * We implement adaptive IRQ moderation, but use a different algorithm
603 * from that assumed in the definition of struct ethtool_coalesce.
604 * Therefore we do not use any of the adaptive moderation parameters
605 * in it.
606 */
607
608 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
609 struct ethtool_coalesce *coalesce)
610 {
611 struct efx_nic *efx = netdev_priv(net_dev);
612 unsigned int tx_usecs, rx_usecs;
613 bool rx_adaptive;
614
615 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);
616
617 coalesce->tx_coalesce_usecs = tx_usecs;
618 coalesce->tx_coalesce_usecs_irq = tx_usecs;
619 coalesce->rx_coalesce_usecs = rx_usecs;
620 coalesce->rx_coalesce_usecs_irq = rx_usecs;
621 coalesce->use_adaptive_rx_coalesce = rx_adaptive;
622
623 return 0;
624 }
625
626 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
627 struct ethtool_coalesce *coalesce)
628 {
629 struct efx_nic *efx = netdev_priv(net_dev);
630 struct efx_channel *channel;
631 unsigned int tx_usecs, rx_usecs;
632 bool adaptive, rx_may_override_tx;
633 int rc;
634
635 if (coalesce->use_adaptive_tx_coalesce)
636 return -EINVAL;
637
638 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);
639
640 if (coalesce->rx_coalesce_usecs != rx_usecs)
641 rx_usecs = coalesce->rx_coalesce_usecs;
642 else
643 rx_usecs = coalesce->rx_coalesce_usecs_irq;
644
645 adaptive = coalesce->use_adaptive_rx_coalesce;
646
647 /* If channels are shared, TX IRQ moderation can be quietly
648 * overridden unless it is changed from its old value.
649 */
650 rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs &&
651 coalesce->tx_coalesce_usecs_irq == tx_usecs);
652 if (coalesce->tx_coalesce_usecs != tx_usecs)
653 tx_usecs = coalesce->tx_coalesce_usecs;
654 else
655 tx_usecs = coalesce->tx_coalesce_usecs_irq;
656
657 rc = efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
658 rx_may_override_tx);
659 if (rc != 0)
660 return rc;
661
662 efx_for_each_channel(channel, efx)
663 efx->type->push_irq_moderation(channel);
664
665 return 0;
666 }
667
668 static void efx_ethtool_get_ringparam(struct net_device *net_dev,
669 struct ethtool_ringparam *ring)
670 {
671 struct efx_nic *efx = netdev_priv(net_dev);
672
673 ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
674 ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
675 ring->rx_pending = efx->rxq_entries;
676 ring->tx_pending = efx->txq_entries;
677 }
678
679 static int efx_ethtool_set_ringparam(struct net_device *net_dev,
680 struct ethtool_ringparam *ring)
681 {
682 struct efx_nic *efx = netdev_priv(net_dev);
683 u32 txq_entries;
684
685 if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
686 ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
687 ring->tx_pending > EFX_MAX_DMAQ_SIZE)
688 return -EINVAL;
689
690 if (ring->rx_pending < EFX_RXQ_MIN_ENT) {
691 netif_err(efx, drv, efx->net_dev,
692 "RX queues cannot be smaller than %u\n",
693 EFX_RXQ_MIN_ENT);
694 return -EINVAL;
695 }
696
697 txq_entries = max(ring->tx_pending, EFX_TXQ_MIN_ENT(efx));
698 if (txq_entries != ring->tx_pending)
699 netif_warn(efx, drv, efx->net_dev,
700 "increasing TX queue size to minimum of %u\n",
701 txq_entries);
702
703 return efx_realloc_channels(efx, ring->rx_pending, txq_entries);
704 }
705
706 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
707 struct ethtool_pauseparam *pause)
708 {
709 struct efx_nic *efx = netdev_priv(net_dev);
710 u8 wanted_fc, old_fc;
711 u32 old_adv;
712 bool reset;
713 int rc = 0;
714
715 mutex_lock(&efx->mac_lock);
716
717 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
718 (pause->tx_pause ? EFX_FC_TX : 0) |
719 (pause->autoneg ? EFX_FC_AUTO : 0));
720
721 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
722 netif_dbg(efx, drv, efx->net_dev,
723 "Flow control unsupported: tx ON rx OFF\n");
724 rc = -EINVAL;
725 goto out;
726 }
727
728 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
729 netif_dbg(efx, drv, efx->net_dev,
730 "Autonegotiation is disabled\n");
731 rc = -EINVAL;
732 goto out;
733 }
734
735 /* TX flow control may automatically turn itself off if the
736 * link partner (intermittently) stops responding to pause
737 * frames. There isn't any indication that this has happened,
738 * so the best we do is leave it up to the user to spot this
739 * and fix it be cycling transmit flow control on this end. */
740 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
741 if (EFX_WORKAROUND_11482(efx) && reset) {
742 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
743 /* Recover by resetting the EM block */
744 falcon_stop_nic_stats(efx);
745 falcon_drain_tx_fifo(efx);
746 falcon_reconfigure_xmac(efx);
747 falcon_start_nic_stats(efx);
748 } else {
749 /* Schedule a reset to recover */
750 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
751 }
752 }
753
754 old_adv = efx->link_advertising;
755 old_fc = efx->wanted_fc;
756 efx_link_set_wanted_fc(efx, wanted_fc);
757 if (efx->link_advertising != old_adv ||
758 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
759 rc = efx->phy_op->reconfigure(efx);
760 if (rc) {
761 netif_err(efx, drv, efx->net_dev,
762 "Unable to advertise requested flow "
763 "control setting\n");
764 goto out;
765 }
766 }
767
768 /* Reconfigure the MAC. The PHY *may* generate a link state change event
769 * if the user just changed the advertised capabilities, but there's no
770 * harm doing this twice */
771 efx->type->reconfigure_mac(efx);
772
773 out:
774 mutex_unlock(&efx->mac_lock);
775
776 return rc;
777 }
778
779 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
780 struct ethtool_pauseparam *pause)
781 {
782 struct efx_nic *efx = netdev_priv(net_dev);
783
784 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
785 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
786 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
787 }
788
789
790 static void efx_ethtool_get_wol(struct net_device *net_dev,
791 struct ethtool_wolinfo *wol)
792 {
793 struct efx_nic *efx = netdev_priv(net_dev);
794 return efx->type->get_wol(efx, wol);
795 }
796
797
798 static int efx_ethtool_set_wol(struct net_device *net_dev,
799 struct ethtool_wolinfo *wol)
800 {
801 struct efx_nic *efx = netdev_priv(net_dev);
802 return efx->type->set_wol(efx, wol->wolopts);
803 }
804
805 static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
806 {
807 struct efx_nic *efx = netdev_priv(net_dev);
808 int rc;
809
810 rc = efx->type->map_reset_flags(flags);
811 if (rc < 0)
812 return rc;
813
814 return efx_reset(efx, rc);
815 }
816
817 /* MAC address mask including only MC flag */
818 static const u8 mac_addr_mc_mask[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
819
820 static int efx_ethtool_get_class_rule(struct efx_nic *efx,
821 struct ethtool_rx_flow_spec *rule)
822 {
823 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
824 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
825 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
826 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
827 struct efx_filter_spec spec;
828 u16 vid;
829 u8 proto;
830 int rc;
831
832 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
833 rule->location, &spec);
834 if (rc)
835 return rc;
836
837 if (spec.dmaq_id == 0xfff)
838 rule->ring_cookie = RX_CLS_FLOW_DISC;
839 else
840 rule->ring_cookie = spec.dmaq_id;
841
842 if (spec.type == EFX_FILTER_MC_DEF || spec.type == EFX_FILTER_UC_DEF) {
843 rule->flow_type = ETHER_FLOW;
844 memcpy(mac_mask->h_dest, mac_addr_mc_mask, ETH_ALEN);
845 if (spec.type == EFX_FILTER_MC_DEF)
846 memcpy(mac_entry->h_dest, mac_addr_mc_mask, ETH_ALEN);
847 return 0;
848 }
849
850 rc = efx_filter_get_eth_local(&spec, &vid, mac_entry->h_dest);
851 if (rc == 0) {
852 rule->flow_type = ETHER_FLOW;
853 memset(mac_mask->h_dest, ~0, ETH_ALEN);
854 if (vid != EFX_FILTER_VID_UNSPEC) {
855 rule->flow_type |= FLOW_EXT;
856 rule->h_ext.vlan_tci = htons(vid);
857 rule->m_ext.vlan_tci = htons(0xfff);
858 }
859 return 0;
860 }
861
862 rc = efx_filter_get_ipv4_local(&spec, &proto,
863 &ip_entry->ip4dst, &ip_entry->pdst);
864 if (rc != 0) {
865 rc = efx_filter_get_ipv4_full(
866 &spec, &proto, &ip_entry->ip4dst, &ip_entry->pdst,
867 &ip_entry->ip4src, &ip_entry->psrc);
868 EFX_WARN_ON_PARANOID(rc);
869 ip_mask->ip4src = ~0;
870 ip_mask->psrc = ~0;
871 }
872 rule->flow_type = (proto == IPPROTO_TCP) ? TCP_V4_FLOW : UDP_V4_FLOW;
873 ip_mask->ip4dst = ~0;
874 ip_mask->pdst = ~0;
875 return rc;
876 }
877
878 static int
879 efx_ethtool_get_rxnfc(struct net_device *net_dev,
880 struct ethtool_rxnfc *info, u32 *rule_locs)
881 {
882 struct efx_nic *efx = netdev_priv(net_dev);
883
884 switch (info->cmd) {
885 case ETHTOOL_GRXRINGS:
886 info->data = efx->n_rx_channels;
887 return 0;
888
889 case ETHTOOL_GRXFH: {
890 unsigned min_revision = 0;
891
892 info->data = 0;
893 switch (info->flow_type) {
894 case TCP_V4_FLOW:
895 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
896 /* fall through */
897 case UDP_V4_FLOW:
898 case SCTP_V4_FLOW:
899 case AH_ESP_V4_FLOW:
900 case IPV4_FLOW:
901 info->data |= RXH_IP_SRC | RXH_IP_DST;
902 min_revision = EFX_REV_FALCON_B0;
903 break;
904 case TCP_V6_FLOW:
905 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
906 /* fall through */
907 case UDP_V6_FLOW:
908 case SCTP_V6_FLOW:
909 case AH_ESP_V6_FLOW:
910 case IPV6_FLOW:
911 info->data |= RXH_IP_SRC | RXH_IP_DST;
912 min_revision = EFX_REV_SIENA_A0;
913 break;
914 default:
915 break;
916 }
917 if (efx_nic_rev(efx) < min_revision)
918 info->data = 0;
919 return 0;
920 }
921
922 case ETHTOOL_GRXCLSRLCNT:
923 info->data = efx_filter_get_rx_id_limit(efx);
924 if (info->data == 0)
925 return -EOPNOTSUPP;
926 info->data |= RX_CLS_LOC_SPECIAL;
927 info->rule_cnt =
928 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
929 return 0;
930
931 case ETHTOOL_GRXCLSRULE:
932 if (efx_filter_get_rx_id_limit(efx) == 0)
933 return -EOPNOTSUPP;
934 return efx_ethtool_get_class_rule(efx, &info->fs);
935
936 case ETHTOOL_GRXCLSRLALL: {
937 s32 rc;
938 info->data = efx_filter_get_rx_id_limit(efx);
939 if (info->data == 0)
940 return -EOPNOTSUPP;
941 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
942 rule_locs, info->rule_cnt);
943 if (rc < 0)
944 return rc;
945 info->rule_cnt = rc;
946 return 0;
947 }
948
949 default:
950 return -EOPNOTSUPP;
951 }
952 }
953
954 static int efx_ethtool_set_class_rule(struct efx_nic *efx,
955 struct ethtool_rx_flow_spec *rule)
956 {
957 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
958 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
959 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
960 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
961 struct efx_filter_spec spec;
962 int rc;
963
964 /* Check that user wants us to choose the location */
965 if (rule->location != RX_CLS_LOC_ANY &&
966 rule->location != RX_CLS_LOC_FIRST &&
967 rule->location != RX_CLS_LOC_LAST)
968 return -EINVAL;
969
970 /* Range-check ring_cookie */
971 if (rule->ring_cookie >= efx->n_rx_channels &&
972 rule->ring_cookie != RX_CLS_FLOW_DISC)
973 return -EINVAL;
974
975 /* Check for unsupported extensions */
976 if ((rule->flow_type & FLOW_EXT) &&
977 (rule->m_ext.vlan_etype | rule->m_ext.data[0] |
978 rule->m_ext.data[1]))
979 return -EINVAL;
980
981 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL,
982 (rule->location == RX_CLS_LOC_FIRST) ?
983 EFX_FILTER_FLAG_RX_OVERRIDE_IP : 0,
984 (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
985 0xfff : rule->ring_cookie);
986
987 switch (rule->flow_type) {
988 case TCP_V4_FLOW:
989 case UDP_V4_FLOW: {
990 u8 proto = (rule->flow_type == TCP_V4_FLOW ?
991 IPPROTO_TCP : IPPROTO_UDP);
992
993 /* Must match all of destination, */
994 if ((__force u32)~ip_mask->ip4dst |
995 (__force u16)~ip_mask->pdst)
996 return -EINVAL;
997 /* all or none of source, */
998 if ((ip_mask->ip4src | ip_mask->psrc) &&
999 ((__force u32)~ip_mask->ip4src |
1000 (__force u16)~ip_mask->psrc))
1001 return -EINVAL;
1002 /* and nothing else */
1003 if (ip_mask->tos | rule->m_ext.vlan_tci)
1004 return -EINVAL;
1005
1006 if (ip_mask->ip4src)
1007 rc = efx_filter_set_ipv4_full(&spec, proto,
1008 ip_entry->ip4dst,
1009 ip_entry->pdst,
1010 ip_entry->ip4src,
1011 ip_entry->psrc);
1012 else
1013 rc = efx_filter_set_ipv4_local(&spec, proto,
1014 ip_entry->ip4dst,
1015 ip_entry->pdst);
1016 if (rc)
1017 return rc;
1018 break;
1019 }
1020
1021 case ETHER_FLOW | FLOW_EXT:
1022 case ETHER_FLOW: {
1023 u16 vlan_tag_mask = (rule->flow_type & FLOW_EXT ?
1024 ntohs(rule->m_ext.vlan_tci) : 0);
1025
1026 /* Must not match on source address or Ethertype */
1027 if (!is_zero_ether_addr(mac_mask->h_source) ||
1028 mac_mask->h_proto)
1029 return -EINVAL;
1030
1031 /* Is it a default UC or MC filter? */
1032 if (!compare_ether_addr(mac_mask->h_dest, mac_addr_mc_mask) &&
1033 vlan_tag_mask == 0) {
1034 if (is_multicast_ether_addr(mac_entry->h_dest))
1035 rc = efx_filter_set_mc_def(&spec);
1036 else
1037 rc = efx_filter_set_uc_def(&spec);
1038 }
1039 /* Otherwise, it must match all of destination and all
1040 * or none of VID.
1041 */
1042 else if (is_broadcast_ether_addr(mac_mask->h_dest) &&
1043 (vlan_tag_mask == 0xfff || vlan_tag_mask == 0)) {
1044 rc = efx_filter_set_eth_local(
1045 &spec,
1046 vlan_tag_mask ?
1047 ntohs(rule->h_ext.vlan_tci) : EFX_FILTER_VID_UNSPEC,
1048 mac_entry->h_dest);
1049 } else {
1050 rc = -EINVAL;
1051 }
1052 if (rc)
1053 return rc;
1054 break;
1055 }
1056
1057 default:
1058 return -EINVAL;
1059 }
1060
1061 rc = efx_filter_insert_filter(efx, &spec, true);
1062 if (rc < 0)
1063 return rc;
1064
1065 rule->location = rc;
1066 return 0;
1067 }
1068
1069 static int efx_ethtool_set_rxnfc(struct net_device *net_dev,
1070 struct ethtool_rxnfc *info)
1071 {
1072 struct efx_nic *efx = netdev_priv(net_dev);
1073
1074 if (efx_filter_get_rx_id_limit(efx) == 0)
1075 return -EOPNOTSUPP;
1076
1077 switch (info->cmd) {
1078 case ETHTOOL_SRXCLSRLINS:
1079 return efx_ethtool_set_class_rule(efx, &info->fs);
1080
1081 case ETHTOOL_SRXCLSRLDEL:
1082 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
1083 info->fs.location);
1084
1085 default:
1086 return -EOPNOTSUPP;
1087 }
1088 }
1089
1090 static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1091 {
1092 struct efx_nic *efx = netdev_priv(net_dev);
1093
1094 return ((efx_nic_rev(efx) < EFX_REV_FALCON_B0 ||
1095 efx->n_rx_channels == 1) ?
1096 0 : ARRAY_SIZE(efx->rx_indir_table));
1097 }
1098
1099 static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev, u32 *indir)
1100 {
1101 struct efx_nic *efx = netdev_priv(net_dev);
1102
1103 memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table));
1104 return 0;
1105 }
1106
1107 static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
1108 const u32 *indir)
1109 {
1110 struct efx_nic *efx = netdev_priv(net_dev);
1111
1112 memcpy(efx->rx_indir_table, indir, sizeof(efx->rx_indir_table));
1113 efx_nic_push_rx_indir_table(efx);
1114 return 0;
1115 }
1116
1117 const struct ethtool_ops efx_ethtool_ops = {
1118 .get_settings = efx_ethtool_get_settings,
1119 .set_settings = efx_ethtool_set_settings,
1120 .get_drvinfo = efx_ethtool_get_drvinfo,
1121 .get_regs_len = efx_ethtool_get_regs_len,
1122 .get_regs = efx_ethtool_get_regs,
1123 .get_msglevel = efx_ethtool_get_msglevel,
1124 .set_msglevel = efx_ethtool_set_msglevel,
1125 .nway_reset = efx_ethtool_nway_reset,
1126 .get_link = ethtool_op_get_link,
1127 .get_coalesce = efx_ethtool_get_coalesce,
1128 .set_coalesce = efx_ethtool_set_coalesce,
1129 .get_ringparam = efx_ethtool_get_ringparam,
1130 .set_ringparam = efx_ethtool_set_ringparam,
1131 .get_pauseparam = efx_ethtool_get_pauseparam,
1132 .set_pauseparam = efx_ethtool_set_pauseparam,
1133 .get_sset_count = efx_ethtool_get_sset_count,
1134 .self_test = efx_ethtool_self_test,
1135 .get_strings = efx_ethtool_get_strings,
1136 .set_phys_id = efx_ethtool_phys_id,
1137 .get_ethtool_stats = efx_ethtool_get_stats,
1138 .get_wol = efx_ethtool_get_wol,
1139 .set_wol = efx_ethtool_set_wol,
1140 .reset = efx_ethtool_reset,
1141 .get_rxnfc = efx_ethtool_get_rxnfc,
1142 .set_rxnfc = efx_ethtool_set_rxnfc,
1143 .get_rxfh_indir_size = efx_ethtool_get_rxfh_indir_size,
1144 .get_rxfh_indir = efx_ethtool_get_rxfh_indir,
1145 .set_rxfh_indir = efx_ethtool_set_rxfh_indir,
1146 };
Linux with added FPC-III support