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sfc: Change efx_nic_type::rx_push_indir_table to push hash key as well
[mirror_ubuntu-bionic-kernel.git] / drivers / net / ethernet / sfc / ethtool.c
1 /****************************************************************************
2 * Driver for Solarflare network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2013 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 efx_sw_stat_desc {
23 const char *name;
24 enum {
25 EFX_ETHTOOL_STAT_SOURCE_nic,
26 EFX_ETHTOOL_STAT_SOURCE_channel,
27 EFX_ETHTOOL_STAT_SOURCE_tx_queue
28 } source;
29 unsigned offset;
30 u64(*get_stat) (void *field); /* Reader function */
31 };
32
33 /* Initialiser for a struct efx_sw_stat_desc with type-checking */
34 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
35 get_stat_function) { \
36 .name = #stat_name, \
37 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
38 .offset = ((((field_type *) 0) == \
39 &((struct efx_##source_name *)0)->field) ? \
40 offsetof(struct efx_##source_name, field) : \
41 offsetof(struct efx_##source_name, field)), \
42 .get_stat = get_stat_function, \
43 }
44
45 static u64 efx_get_uint_stat(void *field)
46 {
47 return *(unsigned int *)field;
48 }
49
50 static u64 efx_get_atomic_stat(void *field)
51 {
52 return atomic_read((atomic_t *) field);
53 }
54
55 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
56 EFX_ETHTOOL_STAT(field, nic, field, \
57 atomic_t, efx_get_atomic_stat)
58
59 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
60 EFX_ETHTOOL_STAT(field, channel, n_##field, \
61 unsigned int, efx_get_uint_stat)
62
63 #define EFX_ETHTOOL_UINT_TXQ_STAT(field) \
64 EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \
65 unsigned int, efx_get_uint_stat)
66
67 static const struct efx_sw_stat_desc efx_sw_stat_desc[] = {
68 EFX_ETHTOOL_UINT_TXQ_STAT(merge_events),
69 EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
70 EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
71 EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
72 EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
73 EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets),
74 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
75 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
76 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
77 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
78 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
79 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
80 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_nodesc_trunc),
81 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),
82 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
83 };
84
85 #define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc)
86
87 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
88
89 /**************************************************************************
90 *
91 * Ethtool operations
92 *
93 **************************************************************************
94 */
95
96 /* Identify device by flashing LEDs */
97 static int efx_ethtool_phys_id(struct net_device *net_dev,
98 enum ethtool_phys_id_state state)
99 {
100 struct efx_nic *efx = netdev_priv(net_dev);
101 enum efx_led_mode mode = EFX_LED_DEFAULT;
102
103 switch (state) {
104 case ETHTOOL_ID_ON:
105 mode = EFX_LED_ON;
106 break;
107 case ETHTOOL_ID_OFF:
108 mode = EFX_LED_OFF;
109 break;
110 case ETHTOOL_ID_INACTIVE:
111 mode = EFX_LED_DEFAULT;
112 break;
113 case ETHTOOL_ID_ACTIVE:
114 return 1; /* cycle on/off once per second */
115 }
116
117 efx->type->set_id_led(efx, mode);
118 return 0;
119 }
120
121 /* This must be called with rtnl_lock held. */
122 static int efx_ethtool_get_settings(struct net_device *net_dev,
123 struct ethtool_cmd *ecmd)
124 {
125 struct efx_nic *efx = netdev_priv(net_dev);
126 struct efx_link_state *link_state = &efx->link_state;
127
128 mutex_lock(&efx->mac_lock);
129 efx->phy_op->get_settings(efx, ecmd);
130 mutex_unlock(&efx->mac_lock);
131
132 /* Both MACs support pause frames (bidirectional and respond-only) */
133 ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
134
135 if (LOOPBACK_INTERNAL(efx)) {
136 ethtool_cmd_speed_set(ecmd, link_state->speed);
137 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
138 }
139
140 return 0;
141 }
142
143 /* This must be called with rtnl_lock held. */
144 static int efx_ethtool_set_settings(struct net_device *net_dev,
145 struct ethtool_cmd *ecmd)
146 {
147 struct efx_nic *efx = netdev_priv(net_dev);
148 int rc;
149
150 /* GMAC does not support 1000Mbps HD */
151 if ((ethtool_cmd_speed(ecmd) == SPEED_1000) &&
152 (ecmd->duplex != DUPLEX_FULL)) {
153 netif_dbg(efx, drv, efx->net_dev,
154 "rejecting unsupported 1000Mbps HD setting\n");
155 return -EINVAL;
156 }
157
158 mutex_lock(&efx->mac_lock);
159 rc = efx->phy_op->set_settings(efx, ecmd);
160 mutex_unlock(&efx->mac_lock);
161 return rc;
162 }
163
164 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
165 struct ethtool_drvinfo *info)
166 {
167 struct efx_nic *efx = netdev_priv(net_dev);
168
169 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
170 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
171 if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
172 efx_mcdi_print_fwver(efx, info->fw_version,
173 sizeof(info->fw_version));
174 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
175 }
176
177 static int efx_ethtool_get_regs_len(struct net_device *net_dev)
178 {
179 return efx_nic_get_regs_len(netdev_priv(net_dev));
180 }
181
182 static void efx_ethtool_get_regs(struct net_device *net_dev,
183 struct ethtool_regs *regs, void *buf)
184 {
185 struct efx_nic *efx = netdev_priv(net_dev);
186
187 regs->version = efx->type->revision;
188 efx_nic_get_regs(efx, buf);
189 }
190
191 static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
192 {
193 struct efx_nic *efx = netdev_priv(net_dev);
194 return efx->msg_enable;
195 }
196
197 static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
198 {
199 struct efx_nic *efx = netdev_priv(net_dev);
200 efx->msg_enable = msg_enable;
201 }
202
203 /**
204 * efx_fill_test - fill in an individual self-test entry
205 * @test_index: Index of the test
206 * @strings: Ethtool strings, or %NULL
207 * @data: Ethtool test results, or %NULL
208 * @test: Pointer to test result (used only if data != %NULL)
209 * @unit_format: Unit name format (e.g. "chan\%d")
210 * @unit_id: Unit id (e.g. 0 for "chan0")
211 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
212 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
213 *
214 * Fill in an individual self-test entry.
215 */
216 static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data,
217 int *test, const char *unit_format, int unit_id,
218 const char *test_format, const char *test_id)
219 {
220 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
221
222 /* Fill data value, if applicable */
223 if (data)
224 data[test_index] = *test;
225
226 /* Fill string, if applicable */
227 if (strings) {
228 if (strchr(unit_format, '%'))
229 snprintf(unit_str, sizeof(unit_str),
230 unit_format, unit_id);
231 else
232 strcpy(unit_str, unit_format);
233 snprintf(test_str, sizeof(test_str), test_format, test_id);
234 snprintf(strings + test_index * ETH_GSTRING_LEN,
235 ETH_GSTRING_LEN,
236 "%-6s %-24s", unit_str, test_str);
237 }
238 }
239
240 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
241 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
242 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
243 #define EFX_LOOPBACK_NAME(_mode, _counter) \
244 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
245
246 /**
247 * efx_fill_loopback_test - fill in a block of loopback self-test entries
248 * @efx: Efx NIC
249 * @lb_tests: Efx loopback self-test results structure
250 * @mode: Loopback test mode
251 * @test_index: Starting index of the test
252 * @strings: Ethtool strings, or %NULL
253 * @data: Ethtool test results, or %NULL
254 */
255 static int efx_fill_loopback_test(struct efx_nic *efx,
256 struct efx_loopback_self_tests *lb_tests,
257 enum efx_loopback_mode mode,
258 unsigned int test_index,
259 u8 *strings, u64 *data)
260 {
261 struct efx_channel *channel =
262 efx_get_channel(efx, efx->tx_channel_offset);
263 struct efx_tx_queue *tx_queue;
264
265 efx_for_each_channel_tx_queue(tx_queue, channel) {
266 efx_fill_test(test_index++, strings, data,
267 &lb_tests->tx_sent[tx_queue->queue],
268 EFX_TX_QUEUE_NAME(tx_queue),
269 EFX_LOOPBACK_NAME(mode, "tx_sent"));
270 efx_fill_test(test_index++, strings, data,
271 &lb_tests->tx_done[tx_queue->queue],
272 EFX_TX_QUEUE_NAME(tx_queue),
273 EFX_LOOPBACK_NAME(mode, "tx_done"));
274 }
275 efx_fill_test(test_index++, strings, data,
276 &lb_tests->rx_good,
277 "rx", 0,
278 EFX_LOOPBACK_NAME(mode, "rx_good"));
279 efx_fill_test(test_index++, strings, data,
280 &lb_tests->rx_bad,
281 "rx", 0,
282 EFX_LOOPBACK_NAME(mode, "rx_bad"));
283
284 return test_index;
285 }
286
287 /**
288 * efx_ethtool_fill_self_tests - get self-test details
289 * @efx: Efx NIC
290 * @tests: Efx self-test results structure, or %NULL
291 * @strings: Ethtool strings, or %NULL
292 * @data: Ethtool test results, or %NULL
293 */
294 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
295 struct efx_self_tests *tests,
296 u8 *strings, u64 *data)
297 {
298 struct efx_channel *channel;
299 unsigned int n = 0, i;
300 enum efx_loopback_mode mode;
301
302 efx_fill_test(n++, strings, data, &tests->phy_alive,
303 "phy", 0, "alive", NULL);
304 efx_fill_test(n++, strings, data, &tests->nvram,
305 "core", 0, "nvram", NULL);
306 efx_fill_test(n++, strings, data, &tests->interrupt,
307 "core", 0, "interrupt", NULL);
308
309 /* Event queues */
310 efx_for_each_channel(channel, efx) {
311 efx_fill_test(n++, strings, data,
312 &tests->eventq_dma[channel->channel],
313 EFX_CHANNEL_NAME(channel),
314 "eventq.dma", NULL);
315 efx_fill_test(n++, strings, data,
316 &tests->eventq_int[channel->channel],
317 EFX_CHANNEL_NAME(channel),
318 "eventq.int", NULL);
319 }
320
321 efx_fill_test(n++, strings, data, &tests->memory,
322 "core", 0, "memory", NULL);
323 efx_fill_test(n++, strings, data, &tests->registers,
324 "core", 0, "registers", NULL);
325
326 if (efx->phy_op->run_tests != NULL) {
327 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
328
329 for (i = 0; true; ++i) {
330 const char *name;
331
332 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
333 name = efx->phy_op->test_name(efx, i);
334 if (name == NULL)
335 break;
336
337 efx_fill_test(n++, strings, data, &tests->phy_ext[i],
338 "phy", 0, name, NULL);
339 }
340 }
341
342 /* Loopback tests */
343 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
344 if (!(efx->loopback_modes & (1 << mode)))
345 continue;
346 n = efx_fill_loopback_test(efx,
347 &tests->loopback[mode], mode, n,
348 strings, data);
349 }
350
351 return n;
352 }
353
354 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
355 int string_set)
356 {
357 struct efx_nic *efx = netdev_priv(net_dev);
358
359 switch (string_set) {
360 case ETH_SS_STATS:
361 return efx->type->describe_stats(efx, NULL) +
362 EFX_ETHTOOL_SW_STAT_COUNT;
363 case ETH_SS_TEST:
364 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
365 default:
366 return -EINVAL;
367 }
368 }
369
370 static void efx_ethtool_get_strings(struct net_device *net_dev,
371 u32 string_set, u8 *strings)
372 {
373 struct efx_nic *efx = netdev_priv(net_dev);
374 int i;
375
376 switch (string_set) {
377 case ETH_SS_STATS:
378 strings += (efx->type->describe_stats(efx, strings) *
379 ETH_GSTRING_LEN);
380 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++)
381 strlcpy(strings + i * ETH_GSTRING_LEN,
382 efx_sw_stat_desc[i].name, ETH_GSTRING_LEN);
383 break;
384 case ETH_SS_TEST:
385 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL);
386 break;
387 default:
388 /* No other string sets */
389 break;
390 }
391 }
392
393 static void efx_ethtool_get_stats(struct net_device *net_dev,
394 struct ethtool_stats *stats,
395 u64 *data)
396 {
397 struct efx_nic *efx = netdev_priv(net_dev);
398 const struct efx_sw_stat_desc *stat;
399 struct efx_channel *channel;
400 struct efx_tx_queue *tx_queue;
401 int i;
402
403 spin_lock_bh(&efx->stats_lock);
404
405 /* Get NIC statistics */
406 data += efx->type->update_stats(efx, data, NULL);
407
408 /* Get software statistics */
409 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) {
410 stat = &efx_sw_stat_desc[i];
411 switch (stat->source) {
412 case EFX_ETHTOOL_STAT_SOURCE_nic:
413 data[i] = stat->get_stat((void *)efx + stat->offset);
414 break;
415 case EFX_ETHTOOL_STAT_SOURCE_channel:
416 data[i] = 0;
417 efx_for_each_channel(channel, efx)
418 data[i] += stat->get_stat((void *)channel +
419 stat->offset);
420 break;
421 case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
422 data[i] = 0;
423 efx_for_each_channel(channel, efx) {
424 efx_for_each_channel_tx_queue(tx_queue, channel)
425 data[i] +=
426 stat->get_stat((void *)tx_queue
427 + stat->offset);
428 }
429 break;
430 }
431 }
432
433 spin_unlock_bh(&efx->stats_lock);
434 }
435
436 static void efx_ethtool_self_test(struct net_device *net_dev,
437 struct ethtool_test *test, u64 *data)
438 {
439 struct efx_nic *efx = netdev_priv(net_dev);
440 struct efx_self_tests *efx_tests;
441 int already_up;
442 int rc = -ENOMEM;
443
444 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
445 if (!efx_tests)
446 goto fail;
447
448 if (efx->state != STATE_READY) {
449 rc = -EIO;
450 goto fail1;
451 }
452
453 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
454 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
455
456 /* We need rx buffers and interrupts. */
457 already_up = (efx->net_dev->flags & IFF_UP);
458 if (!already_up) {
459 rc = dev_open(efx->net_dev);
460 if (rc) {
461 netif_err(efx, drv, efx->net_dev,
462 "failed opening device.\n");
463 goto fail1;
464 }
465 }
466
467 rc = efx_selftest(efx, efx_tests, test->flags);
468
469 if (!already_up)
470 dev_close(efx->net_dev);
471
472 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
473 rc == 0 ? "passed" : "failed",
474 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
475
476 fail1:
477 /* Fill ethtool results structures */
478 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
479 kfree(efx_tests);
480 fail:
481 if (rc)
482 test->flags |= ETH_TEST_FL_FAILED;
483 }
484
485 /* Restart autonegotiation */
486 static int efx_ethtool_nway_reset(struct net_device *net_dev)
487 {
488 struct efx_nic *efx = netdev_priv(net_dev);
489
490 return mdio45_nway_restart(&efx->mdio);
491 }
492
493 /*
494 * Each channel has a single IRQ and moderation timer, started by any
495 * completion (or other event). Unless the module parameter
496 * separate_tx_channels is set, IRQs and moderation are therefore
497 * shared between RX and TX completions. In this case, when RX IRQ
498 * moderation is explicitly changed then TX IRQ moderation is
499 * automatically changed too, but otherwise we fail if the two values
500 * are requested to be different.
501 *
502 * The hardware does not support a limit on the number of completions
503 * before an IRQ, so we do not use the max_frames fields. We should
504 * report and require that max_frames == (usecs != 0), but this would
505 * invalidate existing user documentation.
506 *
507 * The hardware does not have distinct settings for interrupt
508 * moderation while the previous IRQ is being handled, so we should
509 * not use the 'irq' fields. However, an earlier developer
510 * misunderstood the meaning of the 'irq' fields and the driver did
511 * not support the standard fields. To avoid invalidating existing
512 * user documentation, we report and accept changes through either the
513 * standard or 'irq' fields. If both are changed at the same time, we
514 * prefer the standard field.
515 *
516 * We implement adaptive IRQ moderation, but use a different algorithm
517 * from that assumed in the definition of struct ethtool_coalesce.
518 * Therefore we do not use any of the adaptive moderation parameters
519 * in it.
520 */
521
522 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
523 struct ethtool_coalesce *coalesce)
524 {
525 struct efx_nic *efx = netdev_priv(net_dev);
526 unsigned int tx_usecs, rx_usecs;
527 bool rx_adaptive;
528
529 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);
530
531 coalesce->tx_coalesce_usecs = tx_usecs;
532 coalesce->tx_coalesce_usecs_irq = tx_usecs;
533 coalesce->rx_coalesce_usecs = rx_usecs;
534 coalesce->rx_coalesce_usecs_irq = rx_usecs;
535 coalesce->use_adaptive_rx_coalesce = rx_adaptive;
536
537 return 0;
538 }
539
540 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
541 struct ethtool_coalesce *coalesce)
542 {
543 struct efx_nic *efx = netdev_priv(net_dev);
544 struct efx_channel *channel;
545 unsigned int tx_usecs, rx_usecs;
546 bool adaptive, rx_may_override_tx;
547 int rc;
548
549 if (coalesce->use_adaptive_tx_coalesce)
550 return -EINVAL;
551
552 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);
553
554 if (coalesce->rx_coalesce_usecs != rx_usecs)
555 rx_usecs = coalesce->rx_coalesce_usecs;
556 else
557 rx_usecs = coalesce->rx_coalesce_usecs_irq;
558
559 adaptive = coalesce->use_adaptive_rx_coalesce;
560
561 /* If channels are shared, TX IRQ moderation can be quietly
562 * overridden unless it is changed from its old value.
563 */
564 rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs &&
565 coalesce->tx_coalesce_usecs_irq == tx_usecs);
566 if (coalesce->tx_coalesce_usecs != tx_usecs)
567 tx_usecs = coalesce->tx_coalesce_usecs;
568 else
569 tx_usecs = coalesce->tx_coalesce_usecs_irq;
570
571 rc = efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
572 rx_may_override_tx);
573 if (rc != 0)
574 return rc;
575
576 efx_for_each_channel(channel, efx)
577 efx->type->push_irq_moderation(channel);
578
579 return 0;
580 }
581
582 static void efx_ethtool_get_ringparam(struct net_device *net_dev,
583 struct ethtool_ringparam *ring)
584 {
585 struct efx_nic *efx = netdev_priv(net_dev);
586
587 ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
588 ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
589 ring->rx_pending = efx->rxq_entries;
590 ring->tx_pending = efx->txq_entries;
591 }
592
593 static int efx_ethtool_set_ringparam(struct net_device *net_dev,
594 struct ethtool_ringparam *ring)
595 {
596 struct efx_nic *efx = netdev_priv(net_dev);
597 u32 txq_entries;
598
599 if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
600 ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
601 ring->tx_pending > EFX_MAX_DMAQ_SIZE)
602 return -EINVAL;
603
604 if (ring->rx_pending < EFX_RXQ_MIN_ENT) {
605 netif_err(efx, drv, efx->net_dev,
606 "RX queues cannot be smaller than %u\n",
607 EFX_RXQ_MIN_ENT);
608 return -EINVAL;
609 }
610
611 txq_entries = max(ring->tx_pending, EFX_TXQ_MIN_ENT(efx));
612 if (txq_entries != ring->tx_pending)
613 netif_warn(efx, drv, efx->net_dev,
614 "increasing TX queue size to minimum of %u\n",
615 txq_entries);
616
617 return efx_realloc_channels(efx, ring->rx_pending, txq_entries);
618 }
619
620 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
621 struct ethtool_pauseparam *pause)
622 {
623 struct efx_nic *efx = netdev_priv(net_dev);
624 u8 wanted_fc, old_fc;
625 u32 old_adv;
626 int rc = 0;
627
628 mutex_lock(&efx->mac_lock);
629
630 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
631 (pause->tx_pause ? EFX_FC_TX : 0) |
632 (pause->autoneg ? EFX_FC_AUTO : 0));
633
634 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
635 netif_dbg(efx, drv, efx->net_dev,
636 "Flow control unsupported: tx ON rx OFF\n");
637 rc = -EINVAL;
638 goto out;
639 }
640
641 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
642 netif_dbg(efx, drv, efx->net_dev,
643 "Autonegotiation is disabled\n");
644 rc = -EINVAL;
645 goto out;
646 }
647
648 /* Hook for Falcon bug 11482 workaround */
649 if (efx->type->prepare_enable_fc_tx &&
650 (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
651 efx->type->prepare_enable_fc_tx(efx);
652
653 old_adv = efx->link_advertising;
654 old_fc = efx->wanted_fc;
655 efx_link_set_wanted_fc(efx, wanted_fc);
656 if (efx->link_advertising != old_adv ||
657 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
658 rc = efx->phy_op->reconfigure(efx);
659 if (rc) {
660 netif_err(efx, drv, efx->net_dev,
661 "Unable to advertise requested flow "
662 "control setting\n");
663 goto out;
664 }
665 }
666
667 /* Reconfigure the MAC. The PHY *may* generate a link state change event
668 * if the user just changed the advertised capabilities, but there's no
669 * harm doing this twice */
670 efx->type->reconfigure_mac(efx);
671
672 out:
673 mutex_unlock(&efx->mac_lock);
674
675 return rc;
676 }
677
678 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
679 struct ethtool_pauseparam *pause)
680 {
681 struct efx_nic *efx = netdev_priv(net_dev);
682
683 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
684 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
685 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
686 }
687
688
689 static void efx_ethtool_get_wol(struct net_device *net_dev,
690 struct ethtool_wolinfo *wol)
691 {
692 struct efx_nic *efx = netdev_priv(net_dev);
693 return efx->type->get_wol(efx, wol);
694 }
695
696
697 static int efx_ethtool_set_wol(struct net_device *net_dev,
698 struct ethtool_wolinfo *wol)
699 {
700 struct efx_nic *efx = netdev_priv(net_dev);
701 return efx->type->set_wol(efx, wol->wolopts);
702 }
703
704 static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
705 {
706 struct efx_nic *efx = netdev_priv(net_dev);
707 int rc;
708
709 rc = efx->type->map_reset_flags(flags);
710 if (rc < 0)
711 return rc;
712
713 return efx_reset(efx, rc);
714 }
715
716 /* MAC address mask including only I/G bit */
717 static const u8 mac_addr_ig_mask[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
718
719 #define IP4_ADDR_FULL_MASK ((__force __be32)~0)
720 #define PORT_FULL_MASK ((__force __be16)~0)
721 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
722
723 static int efx_ethtool_get_class_rule(struct efx_nic *efx,
724 struct ethtool_rx_flow_spec *rule)
725 {
726 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
727 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
728 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
729 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
730 struct efx_filter_spec spec;
731 int rc;
732
733 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
734 rule->location, &spec);
735 if (rc)
736 return rc;
737
738 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP)
739 rule->ring_cookie = RX_CLS_FLOW_DISC;
740 else
741 rule->ring_cookie = spec.dmaq_id;
742
743 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
744 spec.ether_type == htons(ETH_P_IP) &&
745 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
746 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
747 !(spec.match_flags &
748 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
749 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
750 EFX_FILTER_MATCH_IP_PROTO |
751 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
752 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
753 TCP_V4_FLOW : UDP_V4_FLOW);
754 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
755 ip_entry->ip4dst = spec.loc_host[0];
756 ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
757 }
758 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
759 ip_entry->ip4src = spec.rem_host[0];
760 ip_mask->ip4src = IP4_ADDR_FULL_MASK;
761 }
762 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
763 ip_entry->pdst = spec.loc_port;
764 ip_mask->pdst = PORT_FULL_MASK;
765 }
766 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
767 ip_entry->psrc = spec.rem_port;
768 ip_mask->psrc = PORT_FULL_MASK;
769 }
770 } else if (!(spec.match_flags &
771 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG |
772 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE |
773 EFX_FILTER_MATCH_OUTER_VID))) {
774 rule->flow_type = ETHER_FLOW;
775 if (spec.match_flags &
776 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) {
777 memcpy(mac_entry->h_dest, spec.loc_mac, ETH_ALEN);
778 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC)
779 memset(mac_mask->h_dest, ~0, ETH_ALEN);
780 else
781 memcpy(mac_mask->h_dest, mac_addr_ig_mask,
782 ETH_ALEN);
783 }
784 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) {
785 memcpy(mac_entry->h_source, spec.rem_mac, ETH_ALEN);
786 memset(mac_mask->h_source, ~0, ETH_ALEN);
787 }
788 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) {
789 mac_entry->h_proto = spec.ether_type;
790 mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
791 }
792 } else {
793 /* The above should handle all filters that we insert */
794 WARN_ON(1);
795 return -EINVAL;
796 }
797
798 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) {
799 rule->flow_type |= FLOW_EXT;
800 rule->h_ext.vlan_tci = spec.outer_vid;
801 rule->m_ext.vlan_tci = htons(0xfff);
802 }
803
804 return rc;
805 }
806
807 static int
808 efx_ethtool_get_rxnfc(struct net_device *net_dev,
809 struct ethtool_rxnfc *info, u32 *rule_locs)
810 {
811 struct efx_nic *efx = netdev_priv(net_dev);
812
813 switch (info->cmd) {
814 case ETHTOOL_GRXRINGS:
815 info->data = efx->n_rx_channels;
816 return 0;
817
818 case ETHTOOL_GRXFH: {
819 unsigned min_revision = 0;
820
821 info->data = 0;
822 switch (info->flow_type) {
823 case TCP_V4_FLOW:
824 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
825 /* fall through */
826 case UDP_V4_FLOW:
827 case SCTP_V4_FLOW:
828 case AH_ESP_V4_FLOW:
829 case IPV4_FLOW:
830 info->data |= RXH_IP_SRC | RXH_IP_DST;
831 min_revision = EFX_REV_FALCON_B0;
832 break;
833 case TCP_V6_FLOW:
834 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
835 /* fall through */
836 case UDP_V6_FLOW:
837 case SCTP_V6_FLOW:
838 case AH_ESP_V6_FLOW:
839 case IPV6_FLOW:
840 info->data |= RXH_IP_SRC | RXH_IP_DST;
841 min_revision = EFX_REV_SIENA_A0;
842 break;
843 default:
844 break;
845 }
846 if (efx_nic_rev(efx) < min_revision)
847 info->data = 0;
848 return 0;
849 }
850
851 case ETHTOOL_GRXCLSRLCNT:
852 info->data = efx_filter_get_rx_id_limit(efx);
853 if (info->data == 0)
854 return -EOPNOTSUPP;
855 info->data |= RX_CLS_LOC_SPECIAL;
856 info->rule_cnt =
857 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
858 return 0;
859
860 case ETHTOOL_GRXCLSRULE:
861 if (efx_filter_get_rx_id_limit(efx) == 0)
862 return -EOPNOTSUPP;
863 return efx_ethtool_get_class_rule(efx, &info->fs);
864
865 case ETHTOOL_GRXCLSRLALL: {
866 s32 rc;
867 info->data = efx_filter_get_rx_id_limit(efx);
868 if (info->data == 0)
869 return -EOPNOTSUPP;
870 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
871 rule_locs, info->rule_cnt);
872 if (rc < 0)
873 return rc;
874 info->rule_cnt = rc;
875 return 0;
876 }
877
878 default:
879 return -EOPNOTSUPP;
880 }
881 }
882
883 static int efx_ethtool_set_class_rule(struct efx_nic *efx,
884 struct ethtool_rx_flow_spec *rule)
885 {
886 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
887 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
888 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
889 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
890 struct efx_filter_spec spec;
891 int rc;
892
893 /* Check that user wants us to choose the location */
894 if (rule->location != RX_CLS_LOC_ANY)
895 return -EINVAL;
896
897 /* Range-check ring_cookie */
898 if (rule->ring_cookie >= efx->n_rx_channels &&
899 rule->ring_cookie != RX_CLS_FLOW_DISC)
900 return -EINVAL;
901
902 /* Check for unsupported extensions */
903 if ((rule->flow_type & FLOW_EXT) &&
904 (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
905 rule->m_ext.data[1]))
906 return -EINVAL;
907
908 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL,
909 efx->rx_scatter ? EFX_FILTER_FLAG_RX_SCATTER : 0,
910 (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
911 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
912
913 switch (rule->flow_type & ~FLOW_EXT) {
914 case TCP_V4_FLOW:
915 case UDP_V4_FLOW:
916 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
917 EFX_FILTER_MATCH_IP_PROTO);
918 spec.ether_type = htons(ETH_P_IP);
919 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ?
920 IPPROTO_TCP : IPPROTO_UDP);
921 if (ip_mask->ip4dst) {
922 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
923 return -EINVAL;
924 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
925 spec.loc_host[0] = ip_entry->ip4dst;
926 }
927 if (ip_mask->ip4src) {
928 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
929 return -EINVAL;
930 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
931 spec.rem_host[0] = ip_entry->ip4src;
932 }
933 if (ip_mask->pdst) {
934 if (ip_mask->pdst != PORT_FULL_MASK)
935 return -EINVAL;
936 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
937 spec.loc_port = ip_entry->pdst;
938 }
939 if (ip_mask->psrc) {
940 if (ip_mask->psrc != PORT_FULL_MASK)
941 return -EINVAL;
942 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
943 spec.rem_port = ip_entry->psrc;
944 }
945 if (ip_mask->tos)
946 return -EINVAL;
947 break;
948
949 case ETHER_FLOW:
950 if (!is_zero_ether_addr(mac_mask->h_dest)) {
951 if (ether_addr_equal(mac_mask->h_dest,
952 mac_addr_ig_mask))
953 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
954 else if (is_broadcast_ether_addr(mac_mask->h_dest))
955 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;
956 else
957 return -EINVAL;
958 memcpy(spec.loc_mac, mac_entry->h_dest, ETH_ALEN);
959 }
960 if (!is_zero_ether_addr(mac_mask->h_source)) {
961 if (!is_broadcast_ether_addr(mac_mask->h_source))
962 return -EINVAL;
963 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;
964 memcpy(spec.rem_mac, mac_entry->h_source, ETH_ALEN);
965 }
966 if (mac_mask->h_proto) {
967 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
968 return -EINVAL;
969 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;
970 spec.ether_type = mac_entry->h_proto;
971 }
972 break;
973
974 default:
975 return -EINVAL;
976 }
977
978 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
979 if (rule->m_ext.vlan_tci != htons(0xfff))
980 return -EINVAL;
981 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;
982 spec.outer_vid = rule->h_ext.vlan_tci;
983 }
984
985 rc = efx_filter_insert_filter(efx, &spec, true);
986 if (rc < 0)
987 return rc;
988
989 rule->location = rc;
990 return 0;
991 }
992
993 static int efx_ethtool_set_rxnfc(struct net_device *net_dev,
994 struct ethtool_rxnfc *info)
995 {
996 struct efx_nic *efx = netdev_priv(net_dev);
997
998 if (efx_filter_get_rx_id_limit(efx) == 0)
999 return -EOPNOTSUPP;
1000
1001 switch (info->cmd) {
1002 case ETHTOOL_SRXCLSRLINS:
1003 return efx_ethtool_set_class_rule(efx, &info->fs);
1004
1005 case ETHTOOL_SRXCLSRLDEL:
1006 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
1007 info->fs.location);
1008
1009 default:
1010 return -EOPNOTSUPP;
1011 }
1012 }
1013
1014 static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1015 {
1016 struct efx_nic *efx = netdev_priv(net_dev);
1017
1018 return ((efx_nic_rev(efx) < EFX_REV_FALCON_B0 ||
1019 efx->n_rx_channels == 1) ?
1020 0 : ARRAY_SIZE(efx->rx_indir_table));
1021 }
1022
1023 static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev, u32 *indir)
1024 {
1025 struct efx_nic *efx = netdev_priv(net_dev);
1026
1027 memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table));
1028 return 0;
1029 }
1030
1031 static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
1032 const u32 *indir)
1033 {
1034 struct efx_nic *efx = netdev_priv(net_dev);
1035
1036 memcpy(efx->rx_indir_table, indir, sizeof(efx->rx_indir_table));
1037 efx->type->rx_push_rss_config(efx);
1038 return 0;
1039 }
1040
1041 static int efx_ethtool_get_ts_info(struct net_device *net_dev,
1042 struct ethtool_ts_info *ts_info)
1043 {
1044 struct efx_nic *efx = netdev_priv(net_dev);
1045
1046 /* Software capabilities */
1047 ts_info->so_timestamping = (SOF_TIMESTAMPING_RX_SOFTWARE |
1048 SOF_TIMESTAMPING_SOFTWARE);
1049 ts_info->phc_index = -1;
1050
1051 efx_ptp_get_ts_info(efx, ts_info);
1052 return 0;
1053 }
1054
1055 static int efx_ethtool_get_module_eeprom(struct net_device *net_dev,
1056 struct ethtool_eeprom *ee,
1057 u8 *data)
1058 {
1059 struct efx_nic *efx = netdev_priv(net_dev);
1060 int ret;
1061
1062 if (!efx->phy_op || !efx->phy_op->get_module_eeprom)
1063 return -EOPNOTSUPP;
1064
1065 mutex_lock(&efx->mac_lock);
1066 ret = efx->phy_op->get_module_eeprom(efx, ee, data);
1067 mutex_unlock(&efx->mac_lock);
1068
1069 return ret;
1070 }
1071
1072 static int efx_ethtool_get_module_info(struct net_device *net_dev,
1073 struct ethtool_modinfo *modinfo)
1074 {
1075 struct efx_nic *efx = netdev_priv(net_dev);
1076 int ret;
1077
1078 if (!efx->phy_op || !efx->phy_op->get_module_info)
1079 return -EOPNOTSUPP;
1080
1081 mutex_lock(&efx->mac_lock);
1082 ret = efx->phy_op->get_module_info(efx, modinfo);
1083 mutex_unlock(&efx->mac_lock);
1084
1085 return ret;
1086 }
1087
1088 const struct ethtool_ops efx_ethtool_ops = {
1089 .get_settings = efx_ethtool_get_settings,
1090 .set_settings = efx_ethtool_set_settings,
1091 .get_drvinfo = efx_ethtool_get_drvinfo,
1092 .get_regs_len = efx_ethtool_get_regs_len,
1093 .get_regs = efx_ethtool_get_regs,
1094 .get_msglevel = efx_ethtool_get_msglevel,
1095 .set_msglevel = efx_ethtool_set_msglevel,
1096 .nway_reset = efx_ethtool_nway_reset,
1097 .get_link = ethtool_op_get_link,
1098 .get_coalesce = efx_ethtool_get_coalesce,
1099 .set_coalesce = efx_ethtool_set_coalesce,
1100 .get_ringparam = efx_ethtool_get_ringparam,
1101 .set_ringparam = efx_ethtool_set_ringparam,
1102 .get_pauseparam = efx_ethtool_get_pauseparam,
1103 .set_pauseparam = efx_ethtool_set_pauseparam,
1104 .get_sset_count = efx_ethtool_get_sset_count,
1105 .self_test = efx_ethtool_self_test,
1106 .get_strings = efx_ethtool_get_strings,
1107 .set_phys_id = efx_ethtool_phys_id,
1108 .get_ethtool_stats = efx_ethtool_get_stats,
1109 .get_wol = efx_ethtool_get_wol,
1110 .set_wol = efx_ethtool_set_wol,
1111 .reset = efx_ethtool_reset,
1112 .get_rxnfc = efx_ethtool_get_rxnfc,
1113 .set_rxnfc = efx_ethtool_set_rxnfc,
1114 .get_rxfh_indir_size = efx_ethtool_get_rxfh_indir_size,
1115 .get_rxfh_indir = efx_ethtool_get_rxfh_indir,
1116 .set_rxfh_indir = efx_ethtool_set_rxfh_indir,
1117 .get_ts_info = efx_ethtool_get_ts_info,
1118 .get_module_info = efx_ethtool_get_module_info,
1119 .get_module_eeprom = efx_ethtool_get_module_eeprom,
1120 };
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