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[deliverable/linux.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_merge_events),
81 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
82 };
83
84 #define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc)
85
86 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
87
88 /**************************************************************************
89 *
90 * Ethtool operations
91 *
92 **************************************************************************
93 */
94
95 /* Identify device by flashing LEDs */
96 static int efx_ethtool_phys_id(struct net_device *net_dev,
97 enum ethtool_phys_id_state state)
98 {
99 struct efx_nic *efx = netdev_priv(net_dev);
100 enum efx_led_mode mode = EFX_LED_DEFAULT;
101
102 switch (state) {
103 case ETHTOOL_ID_ON:
104 mode = EFX_LED_ON;
105 break;
106 case ETHTOOL_ID_OFF:
107 mode = EFX_LED_OFF;
108 break;
109 case ETHTOOL_ID_INACTIVE:
110 mode = EFX_LED_DEFAULT;
111 break;
112 case ETHTOOL_ID_ACTIVE:
113 return 1; /* cycle on/off once per second */
114 }
115
116 efx->type->set_id_led(efx, mode);
117 return 0;
118 }
119
120 /* This must be called with rtnl_lock held. */
121 static int efx_ethtool_get_settings(struct net_device *net_dev,
122 struct ethtool_cmd *ecmd)
123 {
124 struct efx_nic *efx = netdev_priv(net_dev);
125 struct efx_link_state *link_state = &efx->link_state;
126
127 mutex_lock(&efx->mac_lock);
128 efx->phy_op->get_settings(efx, ecmd);
129 mutex_unlock(&efx->mac_lock);
130
131 /* Both MACs support pause frames (bidirectional and respond-only) */
132 ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
133
134 if (LOOPBACK_INTERNAL(efx)) {
135 ethtool_cmd_speed_set(ecmd, link_state->speed);
136 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
137 }
138
139 return 0;
140 }
141
142 /* This must be called with rtnl_lock held. */
143 static int efx_ethtool_set_settings(struct net_device *net_dev,
144 struct ethtool_cmd *ecmd)
145 {
146 struct efx_nic *efx = netdev_priv(net_dev);
147 int rc;
148
149 /* GMAC does not support 1000Mbps HD */
150 if ((ethtool_cmd_speed(ecmd) == SPEED_1000) &&
151 (ecmd->duplex != DUPLEX_FULL)) {
152 netif_dbg(efx, drv, efx->net_dev,
153 "rejecting unsupported 1000Mbps HD setting\n");
154 return -EINVAL;
155 }
156
157 mutex_lock(&efx->mac_lock);
158 rc = efx->phy_op->set_settings(efx, ecmd);
159 mutex_unlock(&efx->mac_lock);
160 return rc;
161 }
162
163 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
164 struct ethtool_drvinfo *info)
165 {
166 struct efx_nic *efx = netdev_priv(net_dev);
167
168 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
169 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
170 if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
171 efx_mcdi_print_fwver(efx, info->fw_version,
172 sizeof(info->fw_version));
173 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
174 }
175
176 static int efx_ethtool_get_regs_len(struct net_device *net_dev)
177 {
178 return efx_nic_get_regs_len(netdev_priv(net_dev));
179 }
180
181 static void efx_ethtool_get_regs(struct net_device *net_dev,
182 struct ethtool_regs *regs, void *buf)
183 {
184 struct efx_nic *efx = netdev_priv(net_dev);
185
186 regs->version = efx->type->revision;
187 efx_nic_get_regs(efx, buf);
188 }
189
190 static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
191 {
192 struct efx_nic *efx = netdev_priv(net_dev);
193 return efx->msg_enable;
194 }
195
196 static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
197 {
198 struct efx_nic *efx = netdev_priv(net_dev);
199 efx->msg_enable = msg_enable;
200 }
201
202 /**
203 * efx_fill_test - fill in an individual self-test entry
204 * @test_index: Index of the test
205 * @strings: Ethtool strings, or %NULL
206 * @data: Ethtool test results, or %NULL
207 * @test: Pointer to test result (used only if data != %NULL)
208 * @unit_format: Unit name format (e.g. "chan\%d")
209 * @unit_id: Unit id (e.g. 0 for "chan0")
210 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
211 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
212 *
213 * Fill in an individual self-test entry.
214 */
215 static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data,
216 int *test, const char *unit_format, int unit_id,
217 const char *test_format, const char *test_id)
218 {
219 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
220
221 /* Fill data value, if applicable */
222 if (data)
223 data[test_index] = *test;
224
225 /* Fill string, if applicable */
226 if (strings) {
227 if (strchr(unit_format, '%'))
228 snprintf(unit_str, sizeof(unit_str),
229 unit_format, unit_id);
230 else
231 strcpy(unit_str, unit_format);
232 snprintf(test_str, sizeof(test_str), test_format, test_id);
233 snprintf(strings + test_index * ETH_GSTRING_LEN,
234 ETH_GSTRING_LEN,
235 "%-6s %-24s", unit_str, test_str);
236 }
237 }
238
239 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
240 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
241 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
242 #define EFX_LOOPBACK_NAME(_mode, _counter) \
243 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
244
245 /**
246 * efx_fill_loopback_test - fill in a block of loopback self-test entries
247 * @efx: Efx NIC
248 * @lb_tests: Efx loopback self-test results structure
249 * @mode: Loopback test mode
250 * @test_index: Starting index of the test
251 * @strings: Ethtool strings, or %NULL
252 * @data: Ethtool test results, or %NULL
253 *
254 * Fill in a block of loopback self-test entries. Return new test
255 * index.
256 */
257 static int efx_fill_loopback_test(struct efx_nic *efx,
258 struct efx_loopback_self_tests *lb_tests,
259 enum efx_loopback_mode mode,
260 unsigned int test_index,
261 u8 *strings, u64 *data)
262 {
263 struct efx_channel *channel =
264 efx_get_channel(efx, efx->tx_channel_offset);
265 struct efx_tx_queue *tx_queue;
266
267 efx_for_each_channel_tx_queue(tx_queue, channel) {
268 efx_fill_test(test_index++, strings, data,
269 &lb_tests->tx_sent[tx_queue->queue],
270 EFX_TX_QUEUE_NAME(tx_queue),
271 EFX_LOOPBACK_NAME(mode, "tx_sent"));
272 efx_fill_test(test_index++, strings, data,
273 &lb_tests->tx_done[tx_queue->queue],
274 EFX_TX_QUEUE_NAME(tx_queue),
275 EFX_LOOPBACK_NAME(mode, "tx_done"));
276 }
277 efx_fill_test(test_index++, strings, data,
278 &lb_tests->rx_good,
279 "rx", 0,
280 EFX_LOOPBACK_NAME(mode, "rx_good"));
281 efx_fill_test(test_index++, strings, data,
282 &lb_tests->rx_bad,
283 "rx", 0,
284 EFX_LOOPBACK_NAME(mode, "rx_bad"));
285
286 return test_index;
287 }
288
289 /**
290 * efx_ethtool_fill_self_tests - get self-test details
291 * @efx: Efx NIC
292 * @tests: Efx self-test results structure, or %NULL
293 * @strings: Ethtool strings, or %NULL
294 * @data: Ethtool test results, or %NULL
295 *
296 * Get self-test number of strings, strings, and/or test results.
297 * Return number of strings (== number of test results).
298 *
299 * The reason for merging these three functions is to make sure that
300 * they can never be inconsistent.
301 */
302 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
303 struct efx_self_tests *tests,
304 u8 *strings, u64 *data)
305 {
306 struct efx_channel *channel;
307 unsigned int n = 0, i;
308 enum efx_loopback_mode mode;
309
310 efx_fill_test(n++, strings, data, &tests->phy_alive,
311 "phy", 0, "alive", NULL);
312 efx_fill_test(n++, strings, data, &tests->nvram,
313 "core", 0, "nvram", NULL);
314 efx_fill_test(n++, strings, data, &tests->interrupt,
315 "core", 0, "interrupt", NULL);
316
317 /* Event queues */
318 efx_for_each_channel(channel, efx) {
319 efx_fill_test(n++, strings, data,
320 &tests->eventq_dma[channel->channel],
321 EFX_CHANNEL_NAME(channel),
322 "eventq.dma", NULL);
323 efx_fill_test(n++, strings, data,
324 &tests->eventq_int[channel->channel],
325 EFX_CHANNEL_NAME(channel),
326 "eventq.int", NULL);
327 }
328
329 efx_fill_test(n++, strings, data, &tests->memory,
330 "core", 0, "memory", NULL);
331 efx_fill_test(n++, strings, data, &tests->registers,
332 "core", 0, "registers", NULL);
333
334 if (efx->phy_op->run_tests != NULL) {
335 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
336
337 for (i = 0; true; ++i) {
338 const char *name;
339
340 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
341 name = efx->phy_op->test_name(efx, i);
342 if (name == NULL)
343 break;
344
345 efx_fill_test(n++, strings, data, &tests->phy_ext[i],
346 "phy", 0, name, NULL);
347 }
348 }
349
350 /* Loopback tests */
351 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
352 if (!(efx->loopback_modes & (1 << mode)))
353 continue;
354 n = efx_fill_loopback_test(efx,
355 &tests->loopback[mode], mode, n,
356 strings, data);
357 }
358
359 return n;
360 }
361
362 static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings)
363 {
364 size_t n_stats = 0;
365 struct efx_channel *channel;
366
367 efx_for_each_channel(channel, efx) {
368 if (efx_channel_has_tx_queues(channel)) {
369 n_stats++;
370 if (strings != NULL) {
371 snprintf(strings, ETH_GSTRING_LEN,
372 "tx-%u.tx_packets",
373 channel->tx_queue[0].queue /
374 EFX_TXQ_TYPES);
375
376 strings += ETH_GSTRING_LEN;
377 }
378 }
379 }
380 efx_for_each_channel(channel, efx) {
381 if (efx_channel_has_rx_queue(channel)) {
382 n_stats++;
383 if (strings != NULL) {
384 snprintf(strings, ETH_GSTRING_LEN,
385 "rx-%d.rx_packets", channel->channel);
386 strings += ETH_GSTRING_LEN;
387 }
388 }
389 }
390 return n_stats;
391 }
392
393 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
394 int string_set)
395 {
396 struct efx_nic *efx = netdev_priv(net_dev);
397
398 switch (string_set) {
399 case ETH_SS_STATS:
400 return efx->type->describe_stats(efx, NULL) +
401 EFX_ETHTOOL_SW_STAT_COUNT +
402 efx_describe_per_queue_stats(efx, NULL) +
403 efx_ptp_describe_stats(efx, NULL);
404 case ETH_SS_TEST:
405 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
406 default:
407 return -EINVAL;
408 }
409 }
410
411 static void efx_ethtool_get_strings(struct net_device *net_dev,
412 u32 string_set, u8 *strings)
413 {
414 struct efx_nic *efx = netdev_priv(net_dev);
415 int i;
416
417 switch (string_set) {
418 case ETH_SS_STATS:
419 strings += (efx->type->describe_stats(efx, strings) *
420 ETH_GSTRING_LEN);
421 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++)
422 strlcpy(strings + i * ETH_GSTRING_LEN,
423 efx_sw_stat_desc[i].name, ETH_GSTRING_LEN);
424 strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;
425 strings += (efx_describe_per_queue_stats(efx, strings) *
426 ETH_GSTRING_LEN);
427 efx_ptp_describe_stats(efx, strings);
428 break;
429 case ETH_SS_TEST:
430 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL);
431 break;
432 default:
433 /* No other string sets */
434 break;
435 }
436 }
437
438 static void efx_ethtool_get_stats(struct net_device *net_dev,
439 struct ethtool_stats *stats,
440 u64 *data)
441 {
442 struct efx_nic *efx = netdev_priv(net_dev);
443 const struct efx_sw_stat_desc *stat;
444 struct efx_channel *channel;
445 struct efx_tx_queue *tx_queue;
446 struct efx_rx_queue *rx_queue;
447 int i;
448
449 spin_lock_bh(&efx->stats_lock);
450
451 /* Get NIC statistics */
452 data += efx->type->update_stats(efx, data, NULL);
453
454 /* Get software statistics */
455 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) {
456 stat = &efx_sw_stat_desc[i];
457 switch (stat->source) {
458 case EFX_ETHTOOL_STAT_SOURCE_nic:
459 data[i] = stat->get_stat((void *)efx + stat->offset);
460 break;
461 case EFX_ETHTOOL_STAT_SOURCE_channel:
462 data[i] = 0;
463 efx_for_each_channel(channel, efx)
464 data[i] += stat->get_stat((void *)channel +
465 stat->offset);
466 break;
467 case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
468 data[i] = 0;
469 efx_for_each_channel(channel, efx) {
470 efx_for_each_channel_tx_queue(tx_queue, channel)
471 data[i] +=
472 stat->get_stat((void *)tx_queue
473 + stat->offset);
474 }
475 break;
476 }
477 }
478 data += EFX_ETHTOOL_SW_STAT_COUNT;
479
480 spin_unlock_bh(&efx->stats_lock);
481
482 efx_for_each_channel(channel, efx) {
483 if (efx_channel_has_tx_queues(channel)) {
484 *data = 0;
485 efx_for_each_channel_tx_queue(tx_queue, channel) {
486 *data += tx_queue->tx_packets;
487 }
488 data++;
489 }
490 }
491 efx_for_each_channel(channel, efx) {
492 if (efx_channel_has_rx_queue(channel)) {
493 *data = 0;
494 efx_for_each_channel_rx_queue(rx_queue, channel) {
495 *data += rx_queue->rx_packets;
496 }
497 data++;
498 }
499 }
500
501 efx_ptp_update_stats(efx, data);
502 }
503
504 static void efx_ethtool_self_test(struct net_device *net_dev,
505 struct ethtool_test *test, u64 *data)
506 {
507 struct efx_nic *efx = netdev_priv(net_dev);
508 struct efx_self_tests *efx_tests;
509 bool already_up;
510 int rc = -ENOMEM;
511
512 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
513 if (!efx_tests)
514 goto fail;
515
516 if (efx->state != STATE_READY) {
517 rc = -EBUSY;
518 goto out;
519 }
520
521 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
522 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
523
524 /* We need rx buffers and interrupts. */
525 already_up = (efx->net_dev->flags & IFF_UP);
526 if (!already_up) {
527 rc = dev_open(efx->net_dev);
528 if (rc) {
529 netif_err(efx, drv, efx->net_dev,
530 "failed opening device.\n");
531 goto out;
532 }
533 }
534
535 rc = efx_selftest(efx, efx_tests, test->flags);
536
537 if (!already_up)
538 dev_close(efx->net_dev);
539
540 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
541 rc == 0 ? "passed" : "failed",
542 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
543
544 out:
545 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
546 kfree(efx_tests);
547 fail:
548 if (rc)
549 test->flags |= ETH_TEST_FL_FAILED;
550 }
551
552 /* Restart autonegotiation */
553 static int efx_ethtool_nway_reset(struct net_device *net_dev)
554 {
555 struct efx_nic *efx = netdev_priv(net_dev);
556
557 return mdio45_nway_restart(&efx->mdio);
558 }
559
560 /*
561 * Each channel has a single IRQ and moderation timer, started by any
562 * completion (or other event). Unless the module parameter
563 * separate_tx_channels is set, IRQs and moderation are therefore
564 * shared between RX and TX completions. In this case, when RX IRQ
565 * moderation is explicitly changed then TX IRQ moderation is
566 * automatically changed too, but otherwise we fail if the two values
567 * are requested to be different.
568 *
569 * The hardware does not support a limit on the number of completions
570 * before an IRQ, so we do not use the max_frames fields. We should
571 * report and require that max_frames == (usecs != 0), but this would
572 * invalidate existing user documentation.
573 *
574 * The hardware does not have distinct settings for interrupt
575 * moderation while the previous IRQ is being handled, so we should
576 * not use the 'irq' fields. However, an earlier developer
577 * misunderstood the meaning of the 'irq' fields and the driver did
578 * not support the standard fields. To avoid invalidating existing
579 * user documentation, we report and accept changes through either the
580 * standard or 'irq' fields. If both are changed at the same time, we
581 * prefer the standard field.
582 *
583 * We implement adaptive IRQ moderation, but use a different algorithm
584 * from that assumed in the definition of struct ethtool_coalesce.
585 * Therefore we do not use any of the adaptive moderation parameters
586 * in it.
587 */
588
589 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
590 struct ethtool_coalesce *coalesce)
591 {
592 struct efx_nic *efx = netdev_priv(net_dev);
593 unsigned int tx_usecs, rx_usecs;
594 bool rx_adaptive;
595
596 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);
597
598 coalesce->tx_coalesce_usecs = tx_usecs;
599 coalesce->tx_coalesce_usecs_irq = tx_usecs;
600 coalesce->rx_coalesce_usecs = rx_usecs;
601 coalesce->rx_coalesce_usecs_irq = rx_usecs;
602 coalesce->use_adaptive_rx_coalesce = rx_adaptive;
603
604 return 0;
605 }
606
607 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
608 struct ethtool_coalesce *coalesce)
609 {
610 struct efx_nic *efx = netdev_priv(net_dev);
611 struct efx_channel *channel;
612 unsigned int tx_usecs, rx_usecs;
613 bool adaptive, rx_may_override_tx;
614 int rc;
615
616 if (coalesce->use_adaptive_tx_coalesce)
617 return -EINVAL;
618
619 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);
620
621 if (coalesce->rx_coalesce_usecs != rx_usecs)
622 rx_usecs = coalesce->rx_coalesce_usecs;
623 else
624 rx_usecs = coalesce->rx_coalesce_usecs_irq;
625
626 adaptive = coalesce->use_adaptive_rx_coalesce;
627
628 /* If channels are shared, TX IRQ moderation can be quietly
629 * overridden unless it is changed from its old value.
630 */
631 rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs &&
632 coalesce->tx_coalesce_usecs_irq == tx_usecs);
633 if (coalesce->tx_coalesce_usecs != tx_usecs)
634 tx_usecs = coalesce->tx_coalesce_usecs;
635 else
636 tx_usecs = coalesce->tx_coalesce_usecs_irq;
637
638 rc = efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
639 rx_may_override_tx);
640 if (rc != 0)
641 return rc;
642
643 efx_for_each_channel(channel, efx)
644 efx->type->push_irq_moderation(channel);
645
646 return 0;
647 }
648
649 static void efx_ethtool_get_ringparam(struct net_device *net_dev,
650 struct ethtool_ringparam *ring)
651 {
652 struct efx_nic *efx = netdev_priv(net_dev);
653
654 ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
655 ring->tx_max_pending = EFX_TXQ_MAX_ENT(efx);
656 ring->rx_pending = efx->rxq_entries;
657 ring->tx_pending = efx->txq_entries;
658 }
659
660 static int efx_ethtool_set_ringparam(struct net_device *net_dev,
661 struct ethtool_ringparam *ring)
662 {
663 struct efx_nic *efx = netdev_priv(net_dev);
664 u32 txq_entries;
665
666 if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
667 ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
668 ring->tx_pending > EFX_TXQ_MAX_ENT(efx))
669 return -EINVAL;
670
671 if (ring->rx_pending < EFX_RXQ_MIN_ENT) {
672 netif_err(efx, drv, efx->net_dev,
673 "RX queues cannot be smaller than %u\n",
674 EFX_RXQ_MIN_ENT);
675 return -EINVAL;
676 }
677
678 txq_entries = max(ring->tx_pending, EFX_TXQ_MIN_ENT(efx));
679 if (txq_entries != ring->tx_pending)
680 netif_warn(efx, drv, efx->net_dev,
681 "increasing TX queue size to minimum of %u\n",
682 txq_entries);
683
684 return efx_realloc_channels(efx, ring->rx_pending, txq_entries);
685 }
686
687 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
688 struct ethtool_pauseparam *pause)
689 {
690 struct efx_nic *efx = netdev_priv(net_dev);
691 u8 wanted_fc, old_fc;
692 u32 old_adv;
693 int rc = 0;
694
695 mutex_lock(&efx->mac_lock);
696
697 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
698 (pause->tx_pause ? EFX_FC_TX : 0) |
699 (pause->autoneg ? EFX_FC_AUTO : 0));
700
701 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
702 netif_dbg(efx, drv, efx->net_dev,
703 "Flow control unsupported: tx ON rx OFF\n");
704 rc = -EINVAL;
705 goto out;
706 }
707
708 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
709 netif_dbg(efx, drv, efx->net_dev,
710 "Autonegotiation is disabled\n");
711 rc = -EINVAL;
712 goto out;
713 }
714
715 /* Hook for Falcon bug 11482 workaround */
716 if (efx->type->prepare_enable_fc_tx &&
717 (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
718 efx->type->prepare_enable_fc_tx(efx);
719
720 old_adv = efx->link_advertising;
721 old_fc = efx->wanted_fc;
722 efx_link_set_wanted_fc(efx, wanted_fc);
723 if (efx->link_advertising != old_adv ||
724 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
725 rc = efx->phy_op->reconfigure(efx);
726 if (rc) {
727 netif_err(efx, drv, efx->net_dev,
728 "Unable to advertise requested flow "
729 "control setting\n");
730 goto out;
731 }
732 }
733
734 /* Reconfigure the MAC. The PHY *may* generate a link state change event
735 * if the user just changed the advertised capabilities, but there's no
736 * harm doing this twice */
737 efx_mac_reconfigure(efx);
738
739 out:
740 mutex_unlock(&efx->mac_lock);
741
742 return rc;
743 }
744
745 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
746 struct ethtool_pauseparam *pause)
747 {
748 struct efx_nic *efx = netdev_priv(net_dev);
749
750 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
751 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
752 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
753 }
754
755 static void efx_ethtool_get_wol(struct net_device *net_dev,
756 struct ethtool_wolinfo *wol)
757 {
758 struct efx_nic *efx = netdev_priv(net_dev);
759 return efx->type->get_wol(efx, wol);
760 }
761
762
763 static int efx_ethtool_set_wol(struct net_device *net_dev,
764 struct ethtool_wolinfo *wol)
765 {
766 struct efx_nic *efx = netdev_priv(net_dev);
767 return efx->type->set_wol(efx, wol->wolopts);
768 }
769
770 static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
771 {
772 struct efx_nic *efx = netdev_priv(net_dev);
773 int rc;
774
775 rc = efx->type->map_reset_flags(flags);
776 if (rc < 0)
777 return rc;
778
779 return efx_reset(efx, rc);
780 }
781
782 /* MAC address mask including only I/G bit */
783 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
784
785 #define IP4_ADDR_FULL_MASK ((__force __be32)~0)
786 #define IP_PROTO_FULL_MASK 0xFF
787 #define PORT_FULL_MASK ((__force __be16)~0)
788 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
789
790 static inline void ip6_fill_mask(__be32 *mask)
791 {
792 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
793 }
794
795 static int efx_ethtool_get_class_rule(struct efx_nic *efx,
796 struct ethtool_rx_flow_spec *rule)
797 {
798 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
799 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
800 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
801 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
802 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
803 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
804 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
805 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
806 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
807 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
808 struct efx_filter_spec spec;
809 int rc;
810
811 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
812 rule->location, &spec);
813 if (rc)
814 return rc;
815
816 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP)
817 rule->ring_cookie = RX_CLS_FLOW_DISC;
818 else
819 rule->ring_cookie = spec.dmaq_id;
820
821 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
822 spec.ether_type == htons(ETH_P_IP) &&
823 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
824 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
825 !(spec.match_flags &
826 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
827 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
828 EFX_FILTER_MATCH_IP_PROTO |
829 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
830 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
831 TCP_V4_FLOW : UDP_V4_FLOW);
832 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
833 ip_entry->ip4dst = spec.loc_host[0];
834 ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
835 }
836 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
837 ip_entry->ip4src = spec.rem_host[0];
838 ip_mask->ip4src = IP4_ADDR_FULL_MASK;
839 }
840 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
841 ip_entry->pdst = spec.loc_port;
842 ip_mask->pdst = PORT_FULL_MASK;
843 }
844 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
845 ip_entry->psrc = spec.rem_port;
846 ip_mask->psrc = PORT_FULL_MASK;
847 }
848 } else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
849 spec.ether_type == htons(ETH_P_IPV6) &&
850 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
851 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
852 !(spec.match_flags &
853 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
854 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
855 EFX_FILTER_MATCH_IP_PROTO |
856 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
857 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
858 TCP_V6_FLOW : UDP_V6_FLOW);
859 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
860 memcpy(ip6_entry->ip6dst, spec.loc_host,
861 sizeof(ip6_entry->ip6dst));
862 ip6_fill_mask(ip6_mask->ip6dst);
863 }
864 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
865 memcpy(ip6_entry->ip6src, spec.rem_host,
866 sizeof(ip6_entry->ip6src));
867 ip6_fill_mask(ip6_mask->ip6src);
868 }
869 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
870 ip6_entry->pdst = spec.loc_port;
871 ip6_mask->pdst = PORT_FULL_MASK;
872 }
873 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
874 ip6_entry->psrc = spec.rem_port;
875 ip6_mask->psrc = PORT_FULL_MASK;
876 }
877 } else if (!(spec.match_flags &
878 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG |
879 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE |
880 EFX_FILTER_MATCH_OUTER_VID))) {
881 rule->flow_type = ETHER_FLOW;
882 if (spec.match_flags &
883 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) {
884 ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
885 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC)
886 eth_broadcast_addr(mac_mask->h_dest);
887 else
888 ether_addr_copy(mac_mask->h_dest,
889 mac_addr_ig_mask);
890 }
891 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) {
892 ether_addr_copy(mac_entry->h_source, spec.rem_mac);
893 eth_broadcast_addr(mac_mask->h_source);
894 }
895 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) {
896 mac_entry->h_proto = spec.ether_type;
897 mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
898 }
899 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
900 spec.ether_type == htons(ETH_P_IP) &&
901 !(spec.match_flags &
902 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
903 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
904 EFX_FILTER_MATCH_IP_PROTO))) {
905 rule->flow_type = IPV4_USER_FLOW;
906 uip_entry->ip_ver = ETH_RX_NFC_IP4;
907 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
908 uip_mask->proto = IP_PROTO_FULL_MASK;
909 uip_entry->proto = spec.ip_proto;
910 }
911 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
912 uip_entry->ip4dst = spec.loc_host[0];
913 uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
914 }
915 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
916 uip_entry->ip4src = spec.rem_host[0];
917 uip_mask->ip4src = IP4_ADDR_FULL_MASK;
918 }
919 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
920 spec.ether_type == htons(ETH_P_IPV6) &&
921 !(spec.match_flags &
922 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
923 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
924 EFX_FILTER_MATCH_IP_PROTO))) {
925 rule->flow_type = IPV6_USER_FLOW;
926 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
927 uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
928 uip6_entry->l4_proto = spec.ip_proto;
929 }
930 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
931 memcpy(uip6_entry->ip6dst, spec.loc_host,
932 sizeof(uip6_entry->ip6dst));
933 ip6_fill_mask(uip6_mask->ip6dst);
934 }
935 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
936 memcpy(uip6_entry->ip6src, spec.rem_host,
937 sizeof(uip6_entry->ip6src));
938 ip6_fill_mask(uip6_mask->ip6src);
939 }
940 } else {
941 /* The above should handle all filters that we insert */
942 WARN_ON(1);
943 return -EINVAL;
944 }
945
946 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) {
947 rule->flow_type |= FLOW_EXT;
948 rule->h_ext.vlan_tci = spec.outer_vid;
949 rule->m_ext.vlan_tci = htons(0xfff);
950 }
951
952 return rc;
953 }
954
955 static int
956 efx_ethtool_get_rxnfc(struct net_device *net_dev,
957 struct ethtool_rxnfc *info, u32 *rule_locs)
958 {
959 struct efx_nic *efx = netdev_priv(net_dev);
960
961 switch (info->cmd) {
962 case ETHTOOL_GRXRINGS:
963 info->data = efx->n_rx_channels;
964 return 0;
965
966 case ETHTOOL_GRXFH: {
967 unsigned min_revision = 0;
968
969 info->data = 0;
970 switch (info->flow_type) {
971 case TCP_V4_FLOW:
972 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
973 /* fall through */
974 case UDP_V4_FLOW:
975 case SCTP_V4_FLOW:
976 case AH_ESP_V4_FLOW:
977 case IPV4_FLOW:
978 info->data |= RXH_IP_SRC | RXH_IP_DST;
979 min_revision = EFX_REV_FALCON_B0;
980 break;
981 case TCP_V6_FLOW:
982 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
983 /* fall through */
984 case UDP_V6_FLOW:
985 case SCTP_V6_FLOW:
986 case AH_ESP_V6_FLOW:
987 case IPV6_FLOW:
988 info->data |= RXH_IP_SRC | RXH_IP_DST;
989 min_revision = EFX_REV_SIENA_A0;
990 break;
991 default:
992 break;
993 }
994 if (efx_nic_rev(efx) < min_revision)
995 info->data = 0;
996 return 0;
997 }
998
999 case ETHTOOL_GRXCLSRLCNT:
1000 info->data = efx_filter_get_rx_id_limit(efx);
1001 if (info->data == 0)
1002 return -EOPNOTSUPP;
1003 info->data |= RX_CLS_LOC_SPECIAL;
1004 info->rule_cnt =
1005 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
1006 return 0;
1007
1008 case ETHTOOL_GRXCLSRULE:
1009 if (efx_filter_get_rx_id_limit(efx) == 0)
1010 return -EOPNOTSUPP;
1011 return efx_ethtool_get_class_rule(efx, &info->fs);
1012
1013 case ETHTOOL_GRXCLSRLALL: {
1014 s32 rc;
1015 info->data = efx_filter_get_rx_id_limit(efx);
1016 if (info->data == 0)
1017 return -EOPNOTSUPP;
1018 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
1019 rule_locs, info->rule_cnt);
1020 if (rc < 0)
1021 return rc;
1022 info->rule_cnt = rc;
1023 return 0;
1024 }
1025
1026 default:
1027 return -EOPNOTSUPP;
1028 }
1029 }
1030
1031 static inline bool ip6_mask_is_full(__be32 mask[4])
1032 {
1033 return !~(mask[0] & mask[1] & mask[2] & mask[3]);
1034 }
1035
1036 static inline bool ip6_mask_is_empty(__be32 mask[4])
1037 {
1038 return !(mask[0] | mask[1] | mask[2] | mask[3]);
1039 }
1040
1041 static int efx_ethtool_set_class_rule(struct efx_nic *efx,
1042 struct ethtool_rx_flow_spec *rule)
1043 {
1044 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
1045 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
1046 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
1047 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
1048 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
1049 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
1050 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
1051 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
1052 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
1053 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
1054 struct efx_filter_spec spec;
1055 int rc;
1056
1057 /* Check that user wants us to choose the location */
1058 if (rule->location != RX_CLS_LOC_ANY)
1059 return -EINVAL;
1060
1061 /* Range-check ring_cookie */
1062 if (rule->ring_cookie >= efx->n_rx_channels &&
1063 rule->ring_cookie != RX_CLS_FLOW_DISC)
1064 return -EINVAL;
1065
1066 /* Check for unsupported extensions */
1067 if ((rule->flow_type & FLOW_EXT) &&
1068 (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
1069 rule->m_ext.data[1]))
1070 return -EINVAL;
1071
1072 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL,
1073 efx->rx_scatter ? EFX_FILTER_FLAG_RX_SCATTER : 0,
1074 (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
1075 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
1076
1077 switch (rule->flow_type & ~FLOW_EXT) {
1078 case TCP_V4_FLOW:
1079 case UDP_V4_FLOW:
1080 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
1081 EFX_FILTER_MATCH_IP_PROTO);
1082 spec.ether_type = htons(ETH_P_IP);
1083 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ?
1084 IPPROTO_TCP : IPPROTO_UDP);
1085 if (ip_mask->ip4dst) {
1086 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1087 return -EINVAL;
1088 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1089 spec.loc_host[0] = ip_entry->ip4dst;
1090 }
1091 if (ip_mask->ip4src) {
1092 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
1093 return -EINVAL;
1094 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1095 spec.rem_host[0] = ip_entry->ip4src;
1096 }
1097 if (ip_mask->pdst) {
1098 if (ip_mask->pdst != PORT_FULL_MASK)
1099 return -EINVAL;
1100 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
1101 spec.loc_port = ip_entry->pdst;
1102 }
1103 if (ip_mask->psrc) {
1104 if (ip_mask->psrc != PORT_FULL_MASK)
1105 return -EINVAL;
1106 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
1107 spec.rem_port = ip_entry->psrc;
1108 }
1109 if (ip_mask->tos)
1110 return -EINVAL;
1111 break;
1112
1113 case TCP_V6_FLOW:
1114 case UDP_V6_FLOW:
1115 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
1116 EFX_FILTER_MATCH_IP_PROTO);
1117 spec.ether_type = htons(ETH_P_IPV6);
1118 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V6_FLOW ?
1119 IPPROTO_TCP : IPPROTO_UDP);
1120 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1121 if (!ip6_mask_is_full(ip6_mask->ip6dst))
1122 return -EINVAL;
1123 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1124 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1125 }
1126 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1127 if (!ip6_mask_is_full(ip6_mask->ip6src))
1128 return -EINVAL;
1129 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1130 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1131 }
1132 if (ip6_mask->pdst) {
1133 if (ip6_mask->pdst != PORT_FULL_MASK)
1134 return -EINVAL;
1135 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
1136 spec.loc_port = ip6_entry->pdst;
1137 }
1138 if (ip6_mask->psrc) {
1139 if (ip6_mask->psrc != PORT_FULL_MASK)
1140 return -EINVAL;
1141 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
1142 spec.rem_port = ip6_entry->psrc;
1143 }
1144 if (ip6_mask->tclass)
1145 return -EINVAL;
1146 break;
1147
1148 case IPV4_USER_FLOW:
1149 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1150 uip_entry->ip_ver != ETH_RX_NFC_IP4)
1151 return -EINVAL;
1152 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1153 spec.ether_type = htons(ETH_P_IP);
1154 if (uip_mask->ip4dst) {
1155 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1156 return -EINVAL;
1157 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1158 spec.loc_host[0] = uip_entry->ip4dst;
1159 }
1160 if (uip_mask->ip4src) {
1161 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1162 return -EINVAL;
1163 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1164 spec.rem_host[0] = uip_entry->ip4src;
1165 }
1166 if (uip_mask->proto) {
1167 if (uip_mask->proto != IP_PROTO_FULL_MASK)
1168 return -EINVAL;
1169 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1170 spec.ip_proto = uip_entry->proto;
1171 }
1172 break;
1173
1174 case IPV6_USER_FLOW:
1175 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1176 return -EINVAL;
1177 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1178 spec.ether_type = htons(ETH_P_IPV6);
1179 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1180 if (!ip6_mask_is_full(uip6_mask->ip6dst))
1181 return -EINVAL;
1182 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1183 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1184 }
1185 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1186 if (!ip6_mask_is_full(uip6_mask->ip6src))
1187 return -EINVAL;
1188 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1189 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1190 }
1191 if (uip6_mask->l4_proto) {
1192 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1193 return -EINVAL;
1194 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1195 spec.ip_proto = uip6_entry->l4_proto;
1196 }
1197 break;
1198
1199 case ETHER_FLOW:
1200 if (!is_zero_ether_addr(mac_mask->h_dest)) {
1201 if (ether_addr_equal(mac_mask->h_dest,
1202 mac_addr_ig_mask))
1203 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
1204 else if (is_broadcast_ether_addr(mac_mask->h_dest))
1205 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;
1206 else
1207 return -EINVAL;
1208 ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1209 }
1210 if (!is_zero_ether_addr(mac_mask->h_source)) {
1211 if (!is_broadcast_ether_addr(mac_mask->h_source))
1212 return -EINVAL;
1213 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;
1214 ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1215 }
1216 if (mac_mask->h_proto) {
1217 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1218 return -EINVAL;
1219 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;
1220 spec.ether_type = mac_entry->h_proto;
1221 }
1222 break;
1223
1224 default:
1225 return -EINVAL;
1226 }
1227
1228 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1229 if (rule->m_ext.vlan_tci != htons(0xfff))
1230 return -EINVAL;
1231 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;
1232 spec.outer_vid = rule->h_ext.vlan_tci;
1233 }
1234
1235 rc = efx_filter_insert_filter(efx, &spec, true);
1236 if (rc < 0)
1237 return rc;
1238
1239 rule->location = rc;
1240 return 0;
1241 }
1242
1243 static int efx_ethtool_set_rxnfc(struct net_device *net_dev,
1244 struct ethtool_rxnfc *info)
1245 {
1246 struct efx_nic *efx = netdev_priv(net_dev);
1247
1248 if (efx_filter_get_rx_id_limit(efx) == 0)
1249 return -EOPNOTSUPP;
1250
1251 switch (info->cmd) {
1252 case ETHTOOL_SRXCLSRLINS:
1253 return efx_ethtool_set_class_rule(efx, &info->fs);
1254
1255 case ETHTOOL_SRXCLSRLDEL:
1256 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
1257 info->fs.location);
1258
1259 default:
1260 return -EOPNOTSUPP;
1261 }
1262 }
1263
1264 static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1265 {
1266 struct efx_nic *efx = netdev_priv(net_dev);
1267
1268 return ((efx_nic_rev(efx) < EFX_REV_FALCON_B0 ||
1269 efx->n_rx_channels == 1) ?
1270 0 : ARRAY_SIZE(efx->rx_indir_table));
1271 }
1272
1273 static int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key,
1274 u8 *hfunc)
1275 {
1276 struct efx_nic *efx = netdev_priv(net_dev);
1277
1278 if (hfunc)
1279 *hfunc = ETH_RSS_HASH_TOP;
1280 if (indir)
1281 memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table));
1282 return 0;
1283 }
1284
1285 static int efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir,
1286 const u8 *key, const u8 hfunc)
1287 {
1288 struct efx_nic *efx = netdev_priv(net_dev);
1289
1290 /* We do not allow change in unsupported parameters */
1291 if (key ||
1292 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1293 return -EOPNOTSUPP;
1294 if (!indir)
1295 return 0;
1296
1297 return efx->type->rx_push_rss_config(efx, true, indir);
1298 }
1299
1300 static int efx_ethtool_get_ts_info(struct net_device *net_dev,
1301 struct ethtool_ts_info *ts_info)
1302 {
1303 struct efx_nic *efx = netdev_priv(net_dev);
1304
1305 /* Software capabilities */
1306 ts_info->so_timestamping = (SOF_TIMESTAMPING_RX_SOFTWARE |
1307 SOF_TIMESTAMPING_SOFTWARE);
1308 ts_info->phc_index = -1;
1309
1310 efx_ptp_get_ts_info(efx, ts_info);
1311 return 0;
1312 }
1313
1314 static int efx_ethtool_get_module_eeprom(struct net_device *net_dev,
1315 struct ethtool_eeprom *ee,
1316 u8 *data)
1317 {
1318 struct efx_nic *efx = netdev_priv(net_dev);
1319 int ret;
1320
1321 if (!efx->phy_op || !efx->phy_op->get_module_eeprom)
1322 return -EOPNOTSUPP;
1323
1324 mutex_lock(&efx->mac_lock);
1325 ret = efx->phy_op->get_module_eeprom(efx, ee, data);
1326 mutex_unlock(&efx->mac_lock);
1327
1328 return ret;
1329 }
1330
1331 static int efx_ethtool_get_module_info(struct net_device *net_dev,
1332 struct ethtool_modinfo *modinfo)
1333 {
1334 struct efx_nic *efx = netdev_priv(net_dev);
1335 int ret;
1336
1337 if (!efx->phy_op || !efx->phy_op->get_module_info)
1338 return -EOPNOTSUPP;
1339
1340 mutex_lock(&efx->mac_lock);
1341 ret = efx->phy_op->get_module_info(efx, modinfo);
1342 mutex_unlock(&efx->mac_lock);
1343
1344 return ret;
1345 }
1346
1347 const struct ethtool_ops efx_ethtool_ops = {
1348 .get_settings = efx_ethtool_get_settings,
1349 .set_settings = efx_ethtool_set_settings,
1350 .get_drvinfo = efx_ethtool_get_drvinfo,
1351 .get_regs_len = efx_ethtool_get_regs_len,
1352 .get_regs = efx_ethtool_get_regs,
1353 .get_msglevel = efx_ethtool_get_msglevel,
1354 .set_msglevel = efx_ethtool_set_msglevel,
1355 .nway_reset = efx_ethtool_nway_reset,
1356 .get_link = ethtool_op_get_link,
1357 .get_coalesce = efx_ethtool_get_coalesce,
1358 .set_coalesce = efx_ethtool_set_coalesce,
1359 .get_ringparam = efx_ethtool_get_ringparam,
1360 .set_ringparam = efx_ethtool_set_ringparam,
1361 .get_pauseparam = efx_ethtool_get_pauseparam,
1362 .set_pauseparam = efx_ethtool_set_pauseparam,
1363 .get_sset_count = efx_ethtool_get_sset_count,
1364 .self_test = efx_ethtool_self_test,
1365 .get_strings = efx_ethtool_get_strings,
1366 .set_phys_id = efx_ethtool_phys_id,
1367 .get_ethtool_stats = efx_ethtool_get_stats,
1368 .get_wol = efx_ethtool_get_wol,
1369 .set_wol = efx_ethtool_set_wol,
1370 .reset = efx_ethtool_reset,
1371 .get_rxnfc = efx_ethtool_get_rxnfc,
1372 .set_rxnfc = efx_ethtool_set_rxnfc,
1373 .get_rxfh_indir_size = efx_ethtool_get_rxfh_indir_size,
1374 .get_rxfh = efx_ethtool_get_rxfh,
1375 .set_rxfh = efx_ethtool_set_rxfh,
1376 .get_ts_info = efx_ethtool_get_ts_info,
1377 .get_module_info = efx_ethtool_get_module_info,
1378 .get_module_eeprom = efx_ethtool_get_module_eeprom,
1379 };
Linux kernel - Deliverables
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