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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
22struct ef4_sw_stat_desc {
23 const char *name;
24 enum {
25 EF4_ETHTOOL_STAT_SOURCE_nic,
26 EF4_ETHTOOL_STAT_SOURCE_channel,
27 EF4_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 ef4_sw_stat_desc with type-checking */
34#define EF4_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
35 get_stat_function) { \
36 .name = #stat_name, \
37 .source = EF4_ETHTOOL_STAT_SOURCE_##source_name, \
38 .offset = ((((field_type *) 0) == \
39 &((struct ef4_##source_name *)0)->field) ? \
40 offsetof(struct ef4_##source_name, field) : \
41 offsetof(struct ef4_##source_name, field)), \
42 .get_stat = get_stat_function, \
43}
44
45static u64 ef4_get_uint_stat(void *field)
46{
47 return *(unsigned int *)field;
48}
49
50static u64 ef4_get_atomic_stat(void *field)
51{
52 return atomic_read((atomic_t *) field);
53}
54
55#define EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
56 EF4_ETHTOOL_STAT(field, nic, field, \
57 atomic_t, ef4_get_atomic_stat)
58
59#define EF4_ETHTOOL_UINT_CHANNEL_STAT(field) \
60 EF4_ETHTOOL_STAT(field, channel, n_##field, \
61 unsigned int, ef4_get_uint_stat)
62
63#define EF4_ETHTOOL_UINT_TXQ_STAT(field) \
64 EF4_ETHTOOL_STAT(tx_##field, tx_queue, field, \
65 unsigned int, ef4_get_uint_stat)
66
67static const struct ef4_sw_stat_desc ef4_sw_stat_desc[] = {
68 EF4_ETHTOOL_UINT_TXQ_STAT(merge_events),
69 EF4_ETHTOOL_UINT_TXQ_STAT(pushes),
70 EF4_ETHTOOL_UINT_TXQ_STAT(cb_packets),
71 EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
72 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
73 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
74 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
75 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
76 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
77 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),
78 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
79};
80
81#define EF4_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(ef4_sw_stat_desc)
82
83#define EF4_ETHTOOL_EEPROM_MAGIC 0xEFAB
84
85/**************************************************************************
86 *
87 * Ethtool operations
88 *
89 **************************************************************************
90 */
91
92/* Identify device by flashing LEDs */
93static int ef4_ethtool_phys_id(struct net_device *net_dev,
94 enum ethtool_phys_id_state state)
95{
96 struct ef4_nic *efx = netdev_priv(net_dev);
97 enum ef4_led_mode mode = EF4_LED_DEFAULT;
98
99 switch (state) {
100 case ETHTOOL_ID_ON:
101 mode = EF4_LED_ON;
102 break;
103 case ETHTOOL_ID_OFF:
104 mode = EF4_LED_OFF;
105 break;
106 case ETHTOOL_ID_INACTIVE:
107 mode = EF4_LED_DEFAULT;
108 break;
109 case ETHTOOL_ID_ACTIVE:
110 return 1; /* cycle on/off once per second */
111 }
112
113 efx->type->set_id_led(efx, mode);
114 return 0;
115}
116
117/* This must be called with rtnl_lock held. */
118static int
119ef4_ethtool_get_link_ksettings(struct net_device *net_dev,
120 struct ethtool_link_ksettings *cmd)
121{
122 struct ef4_nic *efx = netdev_priv(net_dev);
123 struct ef4_link_state *link_state = &efx->link_state;
124
125 mutex_lock(&efx->mac_lock);
126 efx->phy_op->get_link_ksettings(efx, cmd);
127 mutex_unlock(&efx->mac_lock);
128
129 /* Both MACs support pause frames (bidirectional and respond-only) */
130 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
131 ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
132
133 if (LOOPBACK_INTERNAL(efx)) {
134 cmd->base.speed = link_state->speed;
135 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
136 }
137
138 return 0;
139}
140
141/* This must be called with rtnl_lock held. */
142static int
143ef4_ethtool_set_link_ksettings(struct net_device *net_dev,
144 const struct ethtool_link_ksettings *cmd)
145{
146 struct ef4_nic *efx = netdev_priv(net_dev);
147 int rc;
148
149 /* GMAC does not support 1000Mbps HD */
150 if ((cmd->base.speed == SPEED_1000) &&
151 (cmd->base.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_link_ksettings(efx, cmd);
159 mutex_unlock(&efx->mac_lock);
160 return rc;
161}
162
163static void ef4_ethtool_get_drvinfo(struct net_device *net_dev,
164 struct ethtool_drvinfo *info)
165{
166 struct ef4_nic *efx = netdev_priv(net_dev);
167
168 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
169 strlcpy(info->version, EF4_DRIVER_VERSION, sizeof(info->version));
170 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
171}
172
173static int ef4_ethtool_get_regs_len(struct net_device *net_dev)
174{
175 return ef4_nic_get_regs_len(netdev_priv(net_dev));
176}
177
178static void ef4_ethtool_get_regs(struct net_device *net_dev,
179 struct ethtool_regs *regs, void *buf)
180{
181 struct ef4_nic *efx = netdev_priv(net_dev);
182
183 regs->version = efx->type->revision;
184 ef4_nic_get_regs(efx, buf);
185}
186
187static u32 ef4_ethtool_get_msglevel(struct net_device *net_dev)
188{
189 struct ef4_nic *efx = netdev_priv(net_dev);
190 return efx->msg_enable;
191}
192
193static void ef4_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
194{
195 struct ef4_nic *efx = netdev_priv(net_dev);
196 efx->msg_enable = msg_enable;
197}
198
199/**
200 * ef4_fill_test - fill in an individual self-test entry
201 * @test_index: Index of the test
202 * @strings: Ethtool strings, or %NULL
203 * @data: Ethtool test results, or %NULL
204 * @test: Pointer to test result (used only if data != %NULL)
205 * @unit_format: Unit name format (e.g. "chan\%d")
206 * @unit_id: Unit id (e.g. 0 for "chan0")
207 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
208 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
209 *
210 * Fill in an individual self-test entry.
211 */
212static void ef4_fill_test(unsigned int test_index, u8 *strings, u64 *data,
213 int *test, const char *unit_format, int unit_id,
214 const char *test_format, const char *test_id)
215{
216 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
217
218 /* Fill data value, if applicable */
219 if (data)
220 data[test_index] = *test;
221
222 /* Fill string, if applicable */
223 if (strings) {
224 if (strchr(unit_format, '%'))
225 snprintf(unit_str, sizeof(unit_str),
226 unit_format, unit_id);
227 else
228 strcpy(unit_str, unit_format);
229 snprintf(test_str, sizeof(test_str), test_format, test_id);
230 snprintf(strings + test_index * ETH_GSTRING_LEN,
231 ETH_GSTRING_LEN,
232 "%-6s %-24s", unit_str, test_str);
233 }
234}
235
236#define EF4_CHANNEL_NAME(_channel) "chan%d", _channel->channel
237#define EF4_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
238#define EF4_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
239#define EF4_LOOPBACK_NAME(_mode, _counter) \
240 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, ef4_loopback_mode)
241
242/**
243 * ef4_fill_loopback_test - fill in a block of loopback self-test entries
244 * @efx: Efx NIC
245 * @lb_tests: Efx loopback self-test results structure
246 * @mode: Loopback test mode
247 * @test_index: Starting index of the test
248 * @strings: Ethtool strings, or %NULL
249 * @data: Ethtool test results, or %NULL
250 *
251 * Fill in a block of loopback self-test entries. Return new test
252 * index.
253 */
254static int ef4_fill_loopback_test(struct ef4_nic *efx,
255 struct ef4_loopback_self_tests *lb_tests,
256 enum ef4_loopback_mode mode,
257 unsigned int test_index,
258 u8 *strings, u64 *data)
259{
260 struct ef4_channel *channel =
261 ef4_get_channel(efx, efx->tx_channel_offset);
262 struct ef4_tx_queue *tx_queue;
263
264 ef4_for_each_channel_tx_queue(tx_queue, channel) {
265 ef4_fill_test(test_index++, strings, data,
266 &lb_tests->tx_sent[tx_queue->queue],
267 EF4_TX_QUEUE_NAME(tx_queue),
268 EF4_LOOPBACK_NAME(mode, "tx_sent"));
269 ef4_fill_test(test_index++, strings, data,
270 &lb_tests->tx_done[tx_queue->queue],
271 EF4_TX_QUEUE_NAME(tx_queue),
272 EF4_LOOPBACK_NAME(mode, "tx_done"));
273 }
274 ef4_fill_test(test_index++, strings, data,
275 &lb_tests->rx_good,
276 "rx", 0,
277 EF4_LOOPBACK_NAME(mode, "rx_good"));
278 ef4_fill_test(test_index++, strings, data,
279 &lb_tests->rx_bad,
280 "rx", 0,
281 EF4_LOOPBACK_NAME(mode, "rx_bad"));
282
283 return test_index;
284}
285
286/**
287 * ef4_ethtool_fill_self_tests - get self-test details
288 * @efx: Efx NIC
289 * @tests: Efx self-test results structure, or %NULL
290 * @strings: Ethtool strings, or %NULL
291 * @data: Ethtool test results, or %NULL
292 *
293 * Get self-test number of strings, strings, and/or test results.
294 * Return number of strings (== number of test results).
295 *
296 * The reason for merging these three functions is to make sure that
297 * they can never be inconsistent.
298 */
299static int ef4_ethtool_fill_self_tests(struct ef4_nic *efx,
300 struct ef4_self_tests *tests,
301 u8 *strings, u64 *data)
302{
303 struct ef4_channel *channel;
304 unsigned int n = 0, i;
305 enum ef4_loopback_mode mode;
306
307 ef4_fill_test(n++, strings, data, &tests->phy_alive,
308 "phy", 0, "alive", NULL);
309 ef4_fill_test(n++, strings, data, &tests->nvram,
310 "core", 0, "nvram", NULL);
311 ef4_fill_test(n++, strings, data, &tests->interrupt,
312 "core", 0, "interrupt", NULL);
313
314 /* Event queues */
315 ef4_for_each_channel(channel, efx) {
316 ef4_fill_test(n++, strings, data,
317 &tests->eventq_dma[channel->channel],
318 EF4_CHANNEL_NAME(channel),
319 "eventq.dma", NULL);
320 ef4_fill_test(n++, strings, data,
321 &tests->eventq_int[channel->channel],
322 EF4_CHANNEL_NAME(channel),
323 "eventq.int", NULL);
324 }
325
326 ef4_fill_test(n++, strings, data, &tests->memory,
327 "core", 0, "memory", NULL);
328 ef4_fill_test(n++, strings, data, &tests->registers,
329 "core", 0, "registers", NULL);
330
331 if (efx->phy_op->run_tests != NULL) {
332 EF4_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
333
334 for (i = 0; true; ++i) {
335 const char *name;
336
337 EF4_BUG_ON_PARANOID(i >= EF4_MAX_PHY_TESTS);
338 name = efx->phy_op->test_name(efx, i);
339 if (name == NULL)
340 break;
341
342 ef4_fill_test(n++, strings, data, &tests->phy_ext[i],
343 "phy", 0, name, NULL);
344 }
345 }
346
347 /* Loopback tests */
348 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
349 if (!(efx->loopback_modes & (1 << mode)))
350 continue;
351 n = ef4_fill_loopback_test(efx,
352 &tests->loopback[mode], mode, n,
353 strings, data);
354 }
355
356 return n;
357}
358
359static size_t ef4_describe_per_queue_stats(struct ef4_nic *efx, u8 *strings)
360{
361 size_t n_stats = 0;
362 struct ef4_channel *channel;
363
364 ef4_for_each_channel(channel, efx) {
365 if (ef4_channel_has_tx_queues(channel)) {
366 n_stats++;
367 if (strings != NULL) {
368 snprintf(strings, ETH_GSTRING_LEN,
369 "tx-%u.tx_packets",
370 channel->tx_queue[0].queue /
371 EF4_TXQ_TYPES);
372
373 strings += ETH_GSTRING_LEN;
374 }
375 }
376 }
377 ef4_for_each_channel(channel, efx) {
378 if (ef4_channel_has_rx_queue(channel)) {
379 n_stats++;
380 if (strings != NULL) {
381 snprintf(strings, ETH_GSTRING_LEN,
382 "rx-%d.rx_packets", channel->channel);
383 strings += ETH_GSTRING_LEN;
384 }
385 }
386 }
387 return n_stats;
388}
389
390static int ef4_ethtool_get_sset_count(struct net_device *net_dev,
391 int string_set)
392{
393 struct ef4_nic *efx = netdev_priv(net_dev);
394
395 switch (string_set) {
396 case ETH_SS_STATS:
397 return efx->type->describe_stats(efx, NULL) +
398 EF4_ETHTOOL_SW_STAT_COUNT +
399 ef4_describe_per_queue_stats(efx, NULL);
400 case ETH_SS_TEST:
401 return ef4_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
402 default:
403 return -EINVAL;
404 }
405}
406
407static void ef4_ethtool_get_strings(struct net_device *net_dev,
408 u32 string_set, u8 *strings)
409{
410 struct ef4_nic *efx = netdev_priv(net_dev);
411 int i;
412
413 switch (string_set) {
414 case ETH_SS_STATS:
415 strings += (efx->type->describe_stats(efx, strings) *
416 ETH_GSTRING_LEN);
417 for (i = 0; i < EF4_ETHTOOL_SW_STAT_COUNT; i++)
418 strlcpy(strings + i * ETH_GSTRING_LEN,
419 ef4_sw_stat_desc[i].name, ETH_GSTRING_LEN);
420 strings += EF4_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;
421 strings += (ef4_describe_per_queue_stats(efx, strings) *
422 ETH_GSTRING_LEN);
423 break;
424 case ETH_SS_TEST:
425 ef4_ethtool_fill_self_tests(efx, NULL, strings, NULL);
426 break;
427 default:
428 /* No other string sets */
429 break;
430 }
431}
432
433static void ef4_ethtool_get_stats(struct net_device *net_dev,
434 struct ethtool_stats *stats,
435 u64 *data)
436{
437 struct ef4_nic *efx = netdev_priv(net_dev);
438 const struct ef4_sw_stat_desc *stat;
439 struct ef4_channel *channel;
440 struct ef4_tx_queue *tx_queue;
441 struct ef4_rx_queue *rx_queue;
442 int i;
443
444 spin_lock_bh(&efx->stats_lock);
445
446 /* Get NIC statistics */
447 data += efx->type->update_stats(efx, data, NULL);
448
449 /* Get software statistics */
450 for (i = 0; i < EF4_ETHTOOL_SW_STAT_COUNT; i++) {
451 stat = &ef4_sw_stat_desc[i];
452 switch (stat->source) {
453 case EF4_ETHTOOL_STAT_SOURCE_nic:
454 data[i] = stat->get_stat((void *)efx + stat->offset);
455 break;
456 case EF4_ETHTOOL_STAT_SOURCE_channel:
457 data[i] = 0;
458 ef4_for_each_channel(channel, efx)
459 data[i] += stat->get_stat((void *)channel +
460 stat->offset);
461 break;
462 case EF4_ETHTOOL_STAT_SOURCE_tx_queue:
463 data[i] = 0;
464 ef4_for_each_channel(channel, efx) {
465 ef4_for_each_channel_tx_queue(tx_queue, channel)
466 data[i] +=
467 stat->get_stat((void *)tx_queue
468 + stat->offset);
469 }
470 break;
471 }
472 }
473 data += EF4_ETHTOOL_SW_STAT_COUNT;
474
475 spin_unlock_bh(&efx->stats_lock);
476
477 ef4_for_each_channel(channel, efx) {
478 if (ef4_channel_has_tx_queues(channel)) {
479 *data = 0;
480 ef4_for_each_channel_tx_queue(tx_queue, channel) {
481 *data += tx_queue->tx_packets;
482 }
483 data++;
484 }
485 }
486 ef4_for_each_channel(channel, efx) {
487 if (ef4_channel_has_rx_queue(channel)) {
488 *data = 0;
489 ef4_for_each_channel_rx_queue(rx_queue, channel) {
490 *data += rx_queue->rx_packets;
491 }
492 data++;
493 }
494 }
495}
496
497static void ef4_ethtool_self_test(struct net_device *net_dev,
498 struct ethtool_test *test, u64 *data)
499{
500 struct ef4_nic *efx = netdev_priv(net_dev);
501 struct ef4_self_tests *ef4_tests;
502 bool already_up;
503 int rc = -ENOMEM;
504
505 ef4_tests = kzalloc(sizeof(*ef4_tests), GFP_KERNEL);
506 if (!ef4_tests)
507 goto fail;
508
509 if (efx->state != STATE_READY) {
510 rc = -EBUSY;
511 goto out;
512 }
513
514 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
515 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
516
517 /* We need rx buffers and interrupts. */
518 already_up = (efx->net_dev->flags & IFF_UP);
519 if (!already_up) {
520 rc = dev_open(efx->net_dev);
521 if (rc) {
522 netif_err(efx, drv, efx->net_dev,
523 "failed opening device.\n");
524 goto out;
525 }
526 }
527
528 rc = ef4_selftest(efx, ef4_tests, test->flags);
529
530 if (!already_up)
531 dev_close(efx->net_dev);
532
533 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
534 rc == 0 ? "passed" : "failed",
535 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
536
537out:
538 ef4_ethtool_fill_self_tests(efx, ef4_tests, NULL, data);
539 kfree(ef4_tests);
540fail:
541 if (rc)
542 test->flags |= ETH_TEST_FL_FAILED;
543}
544
545/* Restart autonegotiation */
546static int ef4_ethtool_nway_reset(struct net_device *net_dev)
547{
548 struct ef4_nic *efx = netdev_priv(net_dev);
549
550 return mdio45_nway_restart(&efx->mdio);
551}
552
553/*
554 * Each channel has a single IRQ and moderation timer, started by any
555 * completion (or other event). Unless the module parameter
556 * separate_tx_channels is set, IRQs and moderation are therefore
557 * shared between RX and TX completions. In this case, when RX IRQ
558 * moderation is explicitly changed then TX IRQ moderation is
559 * automatically changed too, but otherwise we fail if the two values
560 * are requested to be different.
561 *
562 * The hardware does not support a limit on the number of completions
563 * before an IRQ, so we do not use the max_frames fields. We should
564 * report and require that max_frames == (usecs != 0), but this would
565 * invalidate existing user documentation.
566 *
567 * The hardware does not have distinct settings for interrupt
568 * moderation while the previous IRQ is being handled, so we should
569 * not use the 'irq' fields. However, an earlier developer
570 * misunderstood the meaning of the 'irq' fields and the driver did
571 * not support the standard fields. To avoid invalidating existing
572 * user documentation, we report and accept changes through either the
573 * standard or 'irq' fields. If both are changed at the same time, we
574 * prefer the standard field.
575 *
576 * We implement adaptive IRQ moderation, but use a different algorithm
577 * from that assumed in the definition of struct ethtool_coalesce.
578 * Therefore we do not use any of the adaptive moderation parameters
579 * in it.
580 */
581
582static int ef4_ethtool_get_coalesce(struct net_device *net_dev,
583 struct ethtool_coalesce *coalesce)
584{
585 struct ef4_nic *efx = netdev_priv(net_dev);
586 unsigned int tx_usecs, rx_usecs;
587 bool rx_adaptive;
588
589 ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);
590
591 coalesce->tx_coalesce_usecs = tx_usecs;
592 coalesce->tx_coalesce_usecs_irq = tx_usecs;
593 coalesce->rx_coalesce_usecs = rx_usecs;
594 coalesce->rx_coalesce_usecs_irq = rx_usecs;
595 coalesce->use_adaptive_rx_coalesce = rx_adaptive;
596
597 return 0;
598}
599
600static int ef4_ethtool_set_coalesce(struct net_device *net_dev,
601 struct ethtool_coalesce *coalesce)
602{
603 struct ef4_nic *efx = netdev_priv(net_dev);
604 struct ef4_channel *channel;
605 unsigned int tx_usecs, rx_usecs;
606 bool adaptive, rx_may_override_tx;
607 int rc;
608
609 if (coalesce->use_adaptive_tx_coalesce)
610 return -EINVAL;
611
612 ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);
613
614 if (coalesce->rx_coalesce_usecs != rx_usecs)
615 rx_usecs = coalesce->rx_coalesce_usecs;
616 else
617 rx_usecs = coalesce->rx_coalesce_usecs_irq;
618
619 adaptive = coalesce->use_adaptive_rx_coalesce;
620
621 /* If channels are shared, TX IRQ moderation can be quietly
622 * overridden unless it is changed from its old value.
623 */
624 rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs &&
625 coalesce->tx_coalesce_usecs_irq == tx_usecs);
626 if (coalesce->tx_coalesce_usecs != tx_usecs)
627 tx_usecs = coalesce->tx_coalesce_usecs;
628 else
629 tx_usecs = coalesce->tx_coalesce_usecs_irq;
630
631 rc = ef4_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
632 rx_may_override_tx);
633 if (rc != 0)
634 return rc;
635
636 ef4_for_each_channel(channel, efx)
637 efx->type->push_irq_moderation(channel);
638
639 return 0;
640}
641
642static void ef4_ethtool_get_ringparam(struct net_device *net_dev,
643 struct ethtool_ringparam *ring)
644{
645 struct ef4_nic *efx = netdev_priv(net_dev);
646
647 ring->rx_max_pending = EF4_MAX_DMAQ_SIZE;
648 ring->tx_max_pending = EF4_MAX_DMAQ_SIZE;
649 ring->rx_pending = efx->rxq_entries;
650 ring->tx_pending = efx->txq_entries;
651}
652
653static int ef4_ethtool_set_ringparam(struct net_device *net_dev,
654 struct ethtool_ringparam *ring)
655{
656 struct ef4_nic *efx = netdev_priv(net_dev);
657 u32 txq_entries;
658
659 if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
660 ring->rx_pending > EF4_MAX_DMAQ_SIZE ||
661 ring->tx_pending > EF4_MAX_DMAQ_SIZE)
662 return -EINVAL;
663
664 if (ring->rx_pending < EF4_RXQ_MIN_ENT) {
665 netif_err(efx, drv, efx->net_dev,
666 "RX queues cannot be smaller than %u\n",
667 EF4_RXQ_MIN_ENT);
668 return -EINVAL;
669 }
670
671 txq_entries = max(ring->tx_pending, EF4_TXQ_MIN_ENT(efx));
672 if (txq_entries != ring->tx_pending)
673 netif_warn(efx, drv, efx->net_dev,
674 "increasing TX queue size to minimum of %u\n",
675 txq_entries);
676
677 return ef4_realloc_channels(efx, ring->rx_pending, txq_entries);
678}
679
680static int ef4_ethtool_set_pauseparam(struct net_device *net_dev,
681 struct ethtool_pauseparam *pause)
682{
683 struct ef4_nic *efx = netdev_priv(net_dev);
684 u8 wanted_fc, old_fc;
685 u32 old_adv;
686 int rc = 0;
687
688 mutex_lock(&efx->mac_lock);
689
690 wanted_fc = ((pause->rx_pause ? EF4_FC_RX : 0) |
691 (pause->tx_pause ? EF4_FC_TX : 0) |
692 (pause->autoneg ? EF4_FC_AUTO : 0));
693
694 if ((wanted_fc & EF4_FC_TX) && !(wanted_fc & EF4_FC_RX)) {
695 netif_dbg(efx, drv, efx->net_dev,
696 "Flow control unsupported: tx ON rx OFF\n");
697 rc = -EINVAL;
698 goto out;
699 }
700
701 if ((wanted_fc & EF4_FC_AUTO) && !efx->link_advertising) {
702 netif_dbg(efx, drv, efx->net_dev,
703 "Autonegotiation is disabled\n");
704 rc = -EINVAL;
705 goto out;
706 }
707
708 /* Hook for Falcon bug 11482 workaround */
709 if (efx->type->prepare_enable_fc_tx &&
710 (wanted_fc & EF4_FC_TX) && !(efx->wanted_fc & EF4_FC_TX))
711 efx->type->prepare_enable_fc_tx(efx);
712
713 old_adv = efx->link_advertising;
714 old_fc = efx->wanted_fc;
715 ef4_link_set_wanted_fc(efx, wanted_fc);
716 if (efx->link_advertising != old_adv ||
717 (efx->wanted_fc ^ old_fc) & EF4_FC_AUTO) {
718 rc = efx->phy_op->reconfigure(efx);
719 if (rc) {
720 netif_err(efx, drv, efx->net_dev,
721 "Unable to advertise requested flow "
722 "control setting\n");
723 goto out;
724 }
725 }
726
727 /* Reconfigure the MAC. The PHY *may* generate a link state change event
728 * if the user just changed the advertised capabilities, but there's no
729 * harm doing this twice */
730 ef4_mac_reconfigure(efx);
731
732out:
733 mutex_unlock(&efx->mac_lock);
734
735 return rc;
736}
737
738static void ef4_ethtool_get_pauseparam(struct net_device *net_dev,
739 struct ethtool_pauseparam *pause)
740{
741 struct ef4_nic *efx = netdev_priv(net_dev);
742
743 pause->rx_pause = !!(efx->wanted_fc & EF4_FC_RX);
744 pause->tx_pause = !!(efx->wanted_fc & EF4_FC_TX);
745 pause->autoneg = !!(efx->wanted_fc & EF4_FC_AUTO);
746}
747
748static void ef4_ethtool_get_wol(struct net_device *net_dev,
749 struct ethtool_wolinfo *wol)
750{
751 struct ef4_nic *efx = netdev_priv(net_dev);
752 return efx->type->get_wol(efx, wol);
753}
754
755
756static int ef4_ethtool_set_wol(struct net_device *net_dev,
757 struct ethtool_wolinfo *wol)
758{
759 struct ef4_nic *efx = netdev_priv(net_dev);
760 return efx->type->set_wol(efx, wol->wolopts);
761}
762
763static int ef4_ethtool_reset(struct net_device *net_dev, u32 *flags)
764{
765 struct ef4_nic *efx = netdev_priv(net_dev);
766 int rc;
767
768 rc = efx->type->map_reset_flags(flags);
769 if (rc < 0)
770 return rc;
771
772 return ef4_reset(efx, rc);
773}
774
775/* MAC address mask including only I/G bit */
776static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
777
778#define IP4_ADDR_FULL_MASK ((__force __be32)~0)
779#define IP_PROTO_FULL_MASK 0xFF
780#define PORT_FULL_MASK ((__force __be16)~0)
781#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
782
783static inline void ip6_fill_mask(__be32 *mask)
784{
785 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
786}
787
788static int ef4_ethtool_get_class_rule(struct ef4_nic *efx,
789 struct ethtool_rx_flow_spec *rule)
790{
791 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
792 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
793 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
794 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
795 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
796 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
797 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
798 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
799 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
800 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
801 struct ef4_filter_spec spec;
802 int rc;
803
804 rc = ef4_filter_get_filter_safe(efx, EF4_FILTER_PRI_MANUAL,
805 rule->location, &spec);
806 if (rc)
807 return rc;
808
809 if (spec.dmaq_id == EF4_FILTER_RX_DMAQ_ID_DROP)
810 rule->ring_cookie = RX_CLS_FLOW_DISC;
811 else
812 rule->ring_cookie = spec.dmaq_id;
813
814 if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) &&
815 spec.ether_type == htons(ETH_P_IP) &&
816 (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) &&
817 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
818 !(spec.match_flags &
819 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
820 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
821 EF4_FILTER_MATCH_IP_PROTO |
822 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) {
823 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
824 TCP_V4_FLOW : UDP_V4_FLOW);
825 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
826 ip_entry->ip4dst = spec.loc_host[0];
827 ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
828 }
829 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
830 ip_entry->ip4src = spec.rem_host[0];
831 ip_mask->ip4src = IP4_ADDR_FULL_MASK;
832 }
833 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) {
834 ip_entry->pdst = spec.loc_port;
835 ip_mask->pdst = PORT_FULL_MASK;
836 }
837 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) {
838 ip_entry->psrc = spec.rem_port;
839 ip_mask->psrc = PORT_FULL_MASK;
840 }
841 } else if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) &&
842 spec.ether_type == htons(ETH_P_IPV6) &&
843 (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) &&
844 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
845 !(spec.match_flags &
846 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
847 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
848 EF4_FILTER_MATCH_IP_PROTO |
849 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) {
850 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
851 TCP_V6_FLOW : UDP_V6_FLOW);
852 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
853 memcpy(ip6_entry->ip6dst, spec.loc_host,
854 sizeof(ip6_entry->ip6dst));
855 ip6_fill_mask(ip6_mask->ip6dst);
856 }
857 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
858 memcpy(ip6_entry->ip6src, spec.rem_host,
859 sizeof(ip6_entry->ip6src));
860 ip6_fill_mask(ip6_mask->ip6src);
861 }
862 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) {
863 ip6_entry->pdst = spec.loc_port;
864 ip6_mask->pdst = PORT_FULL_MASK;
865 }
866 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) {
867 ip6_entry->psrc = spec.rem_port;
868 ip6_mask->psrc = PORT_FULL_MASK;
869 }
870 } else if (!(spec.match_flags &
871 ~(EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG |
872 EF4_FILTER_MATCH_REM_MAC | EF4_FILTER_MATCH_ETHER_TYPE |
873 EF4_FILTER_MATCH_OUTER_VID))) {
874 rule->flow_type = ETHER_FLOW;
875 if (spec.match_flags &
876 (EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG)) {
877 ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
878 if (spec.match_flags & EF4_FILTER_MATCH_LOC_MAC)
879 eth_broadcast_addr(mac_mask->h_dest);
880 else
881 ether_addr_copy(mac_mask->h_dest,
882 mac_addr_ig_mask);
883 }
884 if (spec.match_flags & EF4_FILTER_MATCH_REM_MAC) {
885 ether_addr_copy(mac_entry->h_source, spec.rem_mac);
886 eth_broadcast_addr(mac_mask->h_source);
887 }
888 if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) {
889 mac_entry->h_proto = spec.ether_type;
890 mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
891 }
892 } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE &&
893 spec.ether_type == htons(ETH_P_IP) &&
894 !(spec.match_flags &
895 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
896 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
897 EF4_FILTER_MATCH_IP_PROTO))) {
898 rule->flow_type = IPV4_USER_FLOW;
899 uip_entry->ip_ver = ETH_RX_NFC_IP4;
900 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) {
901 uip_mask->proto = IP_PROTO_FULL_MASK;
902 uip_entry->proto = spec.ip_proto;
903 }
904 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
905 uip_entry->ip4dst = spec.loc_host[0];
906 uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
907 }
908 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
909 uip_entry->ip4src = spec.rem_host[0];
910 uip_mask->ip4src = IP4_ADDR_FULL_MASK;
911 }
912 } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE &&
913 spec.ether_type == htons(ETH_P_IPV6) &&
914 !(spec.match_flags &
915 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
916 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
917 EF4_FILTER_MATCH_IP_PROTO))) {
918 rule->flow_type = IPV6_USER_FLOW;
919 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) {
920 uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
921 uip6_entry->l4_proto = spec.ip_proto;
922 }
923 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
924 memcpy(uip6_entry->ip6dst, spec.loc_host,
925 sizeof(uip6_entry->ip6dst));
926 ip6_fill_mask(uip6_mask->ip6dst);
927 }
928 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
929 memcpy(uip6_entry->ip6src, spec.rem_host,
930 sizeof(uip6_entry->ip6src));
931 ip6_fill_mask(uip6_mask->ip6src);
932 }
933 } else {
934 /* The above should handle all filters that we insert */
935 WARN_ON(1);
936 return -EINVAL;
937 }
938
939 if (spec.match_flags & EF4_FILTER_MATCH_OUTER_VID) {
940 rule->flow_type |= FLOW_EXT;
941 rule->h_ext.vlan_tci = spec.outer_vid;
942 rule->m_ext.vlan_tci = htons(0xfff);
943 }
944
945 return rc;
946}
947
948static int
949ef4_ethtool_get_rxnfc(struct net_device *net_dev,
950 struct ethtool_rxnfc *info, u32 *rule_locs)
951{
952 struct ef4_nic *efx = netdev_priv(net_dev);
953
954 switch (info->cmd) {
955 case ETHTOOL_GRXRINGS:
956 info->data = efx->n_rx_channels;
957 return 0;
958
959 case ETHTOOL_GRXFH: {
960 unsigned min_revision = 0;
961
962 info->data = 0;
963 switch (info->flow_type) {
964 case TCP_V4_FLOW:
965 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
966 case UDP_V4_FLOW:
967 case SCTP_V4_FLOW:
968 case AH_ESP_V4_FLOW:
969 case IPV4_FLOW:
970 info->data |= RXH_IP_SRC | RXH_IP_DST;
971 min_revision = EF4_REV_FALCON_B0;
972 break;
973 default:
974 break;
975 }
976 if (ef4_nic_rev(efx) < min_revision)
977 info->data = 0;
978 return 0;
979 }
980
981 case ETHTOOL_GRXCLSRLCNT:
982 info->data = ef4_filter_get_rx_id_limit(efx);
983 if (info->data == 0)
984 return -EOPNOTSUPP;
985 info->data |= RX_CLS_LOC_SPECIAL;
986 info->rule_cnt =
987 ef4_filter_count_rx_used(efx, EF4_FILTER_PRI_MANUAL);
988 return 0;
989
990 case ETHTOOL_GRXCLSRULE:
991 if (ef4_filter_get_rx_id_limit(efx) == 0)
992 return -EOPNOTSUPP;
993 return ef4_ethtool_get_class_rule(efx, &info->fs);
994
995 case ETHTOOL_GRXCLSRLALL: {
996 s32 rc;
997 info->data = ef4_filter_get_rx_id_limit(efx);
998 if (info->data == 0)
999 return -EOPNOTSUPP;
1000 rc = ef4_filter_get_rx_ids(efx, EF4_FILTER_PRI_MANUAL,
1001 rule_locs, info->rule_cnt);
1002 if (rc < 0)
1003 return rc;
1004 info->rule_cnt = rc;
1005 return 0;
1006 }
1007
1008 default:
1009 return -EOPNOTSUPP;
1010 }
1011}
1012
1013static inline bool ip6_mask_is_full(__be32 mask[4])
1014{
1015 return !~(mask[0] & mask[1] & mask[2] & mask[3]);
1016}
1017
1018static inline bool ip6_mask_is_empty(__be32 mask[4])
1019{
1020 return !(mask[0] | mask[1] | mask[2] | mask[3]);
1021}
1022
1023static int ef4_ethtool_set_class_rule(struct ef4_nic *efx,
1024 struct ethtool_rx_flow_spec *rule)
1025{
1026 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
1027 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
1028 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
1029 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
1030 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
1031 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
1032 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
1033 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
1034 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
1035 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
1036 struct ef4_filter_spec spec;
1037 int rc;
1038
1039 /* Check that user wants us to choose the location */
1040 if (rule->location != RX_CLS_LOC_ANY)
1041 return -EINVAL;
1042
1043 /* Range-check ring_cookie */
1044 if (rule->ring_cookie >= efx->n_rx_channels &&
1045 rule->ring_cookie != RX_CLS_FLOW_DISC)
1046 return -EINVAL;
1047
1048 /* Check for unsupported extensions */
1049 if ((rule->flow_type & FLOW_EXT) &&
1050 (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
1051 rule->m_ext.data[1]))
1052 return -EINVAL;
1053
1054 ef4_filter_init_rx(&spec, EF4_FILTER_PRI_MANUAL,
1055 efx->rx_scatter ? EF4_FILTER_FLAG_RX_SCATTER : 0,
1056 (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
1057 EF4_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
1058
1059 switch (rule->flow_type & ~FLOW_EXT) {
1060 case TCP_V4_FLOW:
1061 case UDP_V4_FLOW:
1062 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE |
1063 EF4_FILTER_MATCH_IP_PROTO);
1064 spec.ether_type = htons(ETH_P_IP);
1065 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ?
1066 IPPROTO_TCP : IPPROTO_UDP);
1067 if (ip_mask->ip4dst) {
1068 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1069 return -EINVAL;
1070 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1071 spec.loc_host[0] = ip_entry->ip4dst;
1072 }
1073 if (ip_mask->ip4src) {
1074 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
1075 return -EINVAL;
1076 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1077 spec.rem_host[0] = ip_entry->ip4src;
1078 }
1079 if (ip_mask->pdst) {
1080 if (ip_mask->pdst != PORT_FULL_MASK)
1081 return -EINVAL;
1082 spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT;
1083 spec.loc_port = ip_entry->pdst;
1084 }
1085 if (ip_mask->psrc) {
1086 if (ip_mask->psrc != PORT_FULL_MASK)
1087 return -EINVAL;
1088 spec.match_flags |= EF4_FILTER_MATCH_REM_PORT;
1089 spec.rem_port = ip_entry->psrc;
1090 }
1091 if (ip_mask->tos)
1092 return -EINVAL;
1093 break;
1094
1095 case TCP_V6_FLOW:
1096 case UDP_V6_FLOW:
1097 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE |
1098 EF4_FILTER_MATCH_IP_PROTO);
1099 spec.ether_type = htons(ETH_P_IPV6);
1100 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V6_FLOW ?
1101 IPPROTO_TCP : IPPROTO_UDP);
1102 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1103 if (!ip6_mask_is_full(ip6_mask->ip6dst))
1104 return -EINVAL;
1105 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1106 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1107 }
1108 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1109 if (!ip6_mask_is_full(ip6_mask->ip6src))
1110 return -EINVAL;
1111 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1112 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1113 }
1114 if (ip6_mask->pdst) {
1115 if (ip6_mask->pdst != PORT_FULL_MASK)
1116 return -EINVAL;
1117 spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT;
1118 spec.loc_port = ip6_entry->pdst;
1119 }
1120 if (ip6_mask->psrc) {
1121 if (ip6_mask->psrc != PORT_FULL_MASK)
1122 return -EINVAL;
1123 spec.match_flags |= EF4_FILTER_MATCH_REM_PORT;
1124 spec.rem_port = ip6_entry->psrc;
1125 }
1126 if (ip6_mask->tclass)
1127 return -EINVAL;
1128 break;
1129
1130 case IPV4_USER_FLOW:
1131 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1132 uip_entry->ip_ver != ETH_RX_NFC_IP4)
1133 return -EINVAL;
1134 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE;
1135 spec.ether_type = htons(ETH_P_IP);
1136 if (uip_mask->ip4dst) {
1137 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1138 return -EINVAL;
1139 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1140 spec.loc_host[0] = uip_entry->ip4dst;
1141 }
1142 if (uip_mask->ip4src) {
1143 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1144 return -EINVAL;
1145 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1146 spec.rem_host[0] = uip_entry->ip4src;
1147 }
1148 if (uip_mask->proto) {
1149 if (uip_mask->proto != IP_PROTO_FULL_MASK)
1150 return -EINVAL;
1151 spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO;
1152 spec.ip_proto = uip_entry->proto;
1153 }
1154 break;
1155
1156 case IPV6_USER_FLOW:
1157 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1158 return -EINVAL;
1159 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE;
1160 spec.ether_type = htons(ETH_P_IPV6);
1161 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1162 if (!ip6_mask_is_full(uip6_mask->ip6dst))
1163 return -EINVAL;
1164 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1165 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1166 }
1167 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1168 if (!ip6_mask_is_full(uip6_mask->ip6src))
1169 return -EINVAL;
1170 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1171 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1172 }
1173 if (uip6_mask->l4_proto) {
1174 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1175 return -EINVAL;
1176 spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO;
1177 spec.ip_proto = uip6_entry->l4_proto;
1178 }
1179 break;
1180
1181 case ETHER_FLOW:
1182 if (!is_zero_ether_addr(mac_mask->h_dest)) {
1183 if (ether_addr_equal(mac_mask->h_dest,
1184 mac_addr_ig_mask))
1185 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC_IG;
1186 else if (is_broadcast_ether_addr(mac_mask->h_dest))
1187 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC;
1188 else
1189 return -EINVAL;
1190 ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1191 }
1192 if (!is_zero_ether_addr(mac_mask->h_source)) {
1193 if (!is_broadcast_ether_addr(mac_mask->h_source))
1194 return -EINVAL;
1195 spec.match_flags |= EF4_FILTER_MATCH_REM_MAC;
1196 ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1197 }
1198 if (mac_mask->h_proto) {
1199 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1200 return -EINVAL;
1201 spec.match_flags |= EF4_FILTER_MATCH_ETHER_TYPE;
1202 spec.ether_type = mac_entry->h_proto;
1203 }
1204 break;
1205
1206 default:
1207 return -EINVAL;
1208 }
1209
1210 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1211 if (rule->m_ext.vlan_tci != htons(0xfff))
1212 return -EINVAL;
1213 spec.match_flags |= EF4_FILTER_MATCH_OUTER_VID;
1214 spec.outer_vid = rule->h_ext.vlan_tci;
1215 }
1216
1217 rc = ef4_filter_insert_filter(efx, &spec, true);
1218 if (rc < 0)
1219 return rc;
1220
1221 rule->location = rc;
1222 return 0;
1223}
1224
1225static int ef4_ethtool_set_rxnfc(struct net_device *net_dev,
1226 struct ethtool_rxnfc *info)
1227{
1228 struct ef4_nic *efx = netdev_priv(net_dev);
1229
1230 if (ef4_filter_get_rx_id_limit(efx) == 0)
1231 return -EOPNOTSUPP;
1232
1233 switch (info->cmd) {
1234 case ETHTOOL_SRXCLSRLINS:
1235 return ef4_ethtool_set_class_rule(efx, &info->fs);
1236
1237 case ETHTOOL_SRXCLSRLDEL:
1238 return ef4_filter_remove_id_safe(efx, EF4_FILTER_PRI_MANUAL,
1239 info->fs.location);
1240
1241 default:
1242 return -EOPNOTSUPP;
1243 }
1244}
1245
1246static u32 ef4_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1247{
1248 struct ef4_nic *efx = netdev_priv(net_dev);
1249
1250 return ((ef4_nic_rev(efx) < EF4_REV_FALCON_B0 ||
1251 efx->n_rx_channels == 1) ?
1252 0 : ARRAY_SIZE(efx->rx_indir_table));
1253}
1254
1255static int ef4_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key,
1256 u8 *hfunc)
1257{
1258 struct ef4_nic *efx = netdev_priv(net_dev);
1259
1260 if (hfunc)
1261 *hfunc = ETH_RSS_HASH_TOP;
1262 if (indir)
1263 memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table));
1264 return 0;
1265}
1266
1267static int ef4_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir,
1268 const u8 *key, const u8 hfunc)
1269{
1270 struct ef4_nic *efx = netdev_priv(net_dev);
1271
1272 /* We do not allow change in unsupported parameters */
1273 if (key ||
1274 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1275 return -EOPNOTSUPP;
1276 if (!indir)
1277 return 0;
1278
1279 return efx->type->rx_push_rss_config(efx, true, indir);
1280}
1281
1282static int ef4_ethtool_get_module_eeprom(struct net_device *net_dev,
1283 struct ethtool_eeprom *ee,
1284 u8 *data)
1285{
1286 struct ef4_nic *efx = netdev_priv(net_dev);
1287 int ret;
1288
1289 if (!efx->phy_op || !efx->phy_op->get_module_eeprom)
1290 return -EOPNOTSUPP;
1291
1292 mutex_lock(&efx->mac_lock);
1293 ret = efx->phy_op->get_module_eeprom(efx, ee, data);
1294 mutex_unlock(&efx->mac_lock);
1295
1296 return ret;
1297}
1298
1299static int ef4_ethtool_get_module_info(struct net_device *net_dev,
1300 struct ethtool_modinfo *modinfo)
1301{
1302 struct ef4_nic *efx = netdev_priv(net_dev);
1303 int ret;
1304
1305 if (!efx->phy_op || !efx->phy_op->get_module_info)
1306 return -EOPNOTSUPP;
1307
1308 mutex_lock(&efx->mac_lock);
1309 ret = efx->phy_op->get_module_info(efx, modinfo);
1310 mutex_unlock(&efx->mac_lock);
1311
1312 return ret;
1313}
1314
1315const struct ethtool_ops ef4_ethtool_ops = {
1316 .get_drvinfo = ef4_ethtool_get_drvinfo,
1317 .get_regs_len = ef4_ethtool_get_regs_len,
1318 .get_regs = ef4_ethtool_get_regs,
1319 .get_msglevel = ef4_ethtool_get_msglevel,
1320 .set_msglevel = ef4_ethtool_set_msglevel,
1321 .nway_reset = ef4_ethtool_nway_reset,
1322 .get_link = ethtool_op_get_link,
1323 .get_coalesce = ef4_ethtool_get_coalesce,
1324 .set_coalesce = ef4_ethtool_set_coalesce,
1325 .get_ringparam = ef4_ethtool_get_ringparam,
1326 .set_ringparam = ef4_ethtool_set_ringparam,
1327 .get_pauseparam = ef4_ethtool_get_pauseparam,
1328 .set_pauseparam = ef4_ethtool_set_pauseparam,
1329 .get_sset_count = ef4_ethtool_get_sset_count,
1330 .self_test = ef4_ethtool_self_test,
1331 .get_strings = ef4_ethtool_get_strings,
1332 .set_phys_id = ef4_ethtool_phys_id,
1333 .get_ethtool_stats = ef4_ethtool_get_stats,
1334 .get_wol = ef4_ethtool_get_wol,
1335 .set_wol = ef4_ethtool_set_wol,
1336 .reset = ef4_ethtool_reset,
1337 .get_rxnfc = ef4_ethtool_get_rxnfc,
1338 .set_rxnfc = ef4_ethtool_set_rxnfc,
1339 .get_rxfh_indir_size = ef4_ethtool_get_rxfh_indir_size,
1340 .get_rxfh = ef4_ethtool_get_rxfh,
1341 .set_rxfh = ef4_ethtool_set_rxfh,
1342 .get_module_info = ef4_ethtool_get_module_info,
1343 .get_module_eeprom = ef4_ethtool_get_module_eeprom,
1344 .get_link_ksettings = ef4_ethtool_get_link_ksettings,
1345 .set_link_ksettings = ef4_ethtool_set_link_ksettings,
1346};