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1// SPDX-License-Identifier: GPL-2.0-only
2/****************************************************************************
3 * Driver for Solarflare network controllers and boards
4 * Copyright 2019 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#include <linux/module.h>
11#include <linux/netdevice.h>
12#include "net_driver.h"
13#include "mcdi.h"
14#include "nic.h"
15#include "selftest.h"
16#include "rx_common.h"
17#include "ethtool_common.h"
18#include "mcdi_port_common.h"
19
20struct efx_sw_stat_desc {
21 const char *name;
22 enum {
23 EFX_ETHTOOL_STAT_SOURCE_nic,
24 EFX_ETHTOOL_STAT_SOURCE_channel,
25 EFX_ETHTOOL_STAT_SOURCE_tx_queue
26 } source;
27 unsigned int offset;
28 u64 (*get_stat)(void *field); /* Reader function */
29};
30
31/* Initialiser for a struct efx_sw_stat_desc with type-checking */
32#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
33 get_stat_function) { \
34 .name = #stat_name, \
35 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
36 .offset = ((((field_type *) 0) == \
37 &((struct efx_##source_name *)0)->field) ? \
38 offsetof(struct efx_##source_name, field) : \
39 offsetof(struct efx_##source_name, field)), \
40 .get_stat = get_stat_function, \
41}
42
43static u64 efx_get_uint_stat(void *field)
44{
45 return *(unsigned int *)field;
46}
47
48static u64 efx_get_atomic_stat(void *field)
49{
50 return atomic_read((atomic_t *) field);
51}
52
53#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
54 EFX_ETHTOOL_STAT(field, nic, field, \
55 atomic_t, efx_get_atomic_stat)
56
57#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
58 EFX_ETHTOOL_STAT(field, channel, n_##field, \
59 unsigned int, efx_get_uint_stat)
60#define EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(field) \
61 EFX_ETHTOOL_STAT(field, channel, field, \
62 unsigned int, efx_get_uint_stat)
63
64#define EFX_ETHTOOL_UINT_TXQ_STAT(field) \
65 EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \
66 unsigned int, efx_get_uint_stat)
67
68static const struct efx_sw_stat_desc efx_sw_stat_desc[] = {
69 EFX_ETHTOOL_UINT_TXQ_STAT(merge_events),
70 EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
71 EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
72 EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
73 EFX_ETHTOOL_UINT_TXQ_STAT(tso_fallbacks),
74 EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
75 EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets),
76 EFX_ETHTOOL_UINT_TXQ_STAT(cb_packets),
77 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
78 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
79 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
80 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
81 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_ip_hdr_chksum_err),
82 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_tcp_udp_chksum_err),
83 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_ip_hdr_chksum_err),
84 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_tcp_udp_chksum_err),
85 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_eth_crc_err),
86 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
87 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
88 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),
89 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
90 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_drops),
91 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_bad_drops),
92 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_tx),
93 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_redirect),
94 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mport_bad),
95#ifdef CONFIG_RFS_ACCEL
96 EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(rfs_filter_count),
97 EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_succeeded),
98 EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_failed),
99#endif
100};
101
102#define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc)
103
104void efx_ethtool_get_drvinfo(struct net_device *net_dev,
105 struct ethtool_drvinfo *info)
106{
107 struct efx_nic *efx = efx_netdev_priv(net_dev);
108
109 strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
110 efx_mcdi_print_fwver(efx, info->fw_version,
111 sizeof(info->fw_version));
112 strscpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
113}
114
115u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
116{
117 struct efx_nic *efx = efx_netdev_priv(net_dev);
118
119 return efx->msg_enable;
120}
121
122void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
123{
124 struct efx_nic *efx = efx_netdev_priv(net_dev);
125
126 efx->msg_enable = msg_enable;
127}
128
129void efx_ethtool_self_test(struct net_device *net_dev,
130 struct ethtool_test *test, u64 *data)
131{
132 struct efx_nic *efx = efx_netdev_priv(net_dev);
133 struct efx_self_tests *efx_tests;
134 bool already_up;
135 int rc = -ENOMEM;
136
137 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
138 if (!efx_tests)
139 goto fail;
140
141 if (!efx_net_active(efx->state)) {
142 rc = -EBUSY;
143 goto out;
144 }
145
146 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
147 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
148
149 /* We need rx buffers and interrupts. */
150 already_up = (efx->net_dev->flags & IFF_UP);
151 if (!already_up) {
152 rc = dev_open(efx->net_dev, NULL);
153 if (rc) {
154 netif_err(efx, drv, efx->net_dev,
155 "failed opening device.\n");
156 goto out;
157 }
158 }
159
160 rc = efx_selftest(efx, efx_tests, test->flags);
161
162 if (!already_up)
163 dev_close(efx->net_dev);
164
165 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
166 rc == 0 ? "passed" : "failed",
167 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
168
169out:
170 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
171 kfree(efx_tests);
172fail:
173 if (rc)
174 test->flags |= ETH_TEST_FL_FAILED;
175}
176
177void efx_ethtool_get_pauseparam(struct net_device *net_dev,
178 struct ethtool_pauseparam *pause)
179{
180 struct efx_nic *efx = efx_netdev_priv(net_dev);
181
182 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
183 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
184 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
185}
186
187int efx_ethtool_set_pauseparam(struct net_device *net_dev,
188 struct ethtool_pauseparam *pause)
189{
190 struct efx_nic *efx = efx_netdev_priv(net_dev);
191 u8 wanted_fc, old_fc;
192 u32 old_adv;
193 int rc = 0;
194
195 mutex_lock(&efx->mac_lock);
196
197 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
198 (pause->tx_pause ? EFX_FC_TX : 0) |
199 (pause->autoneg ? EFX_FC_AUTO : 0));
200
201 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
202 netif_dbg(efx, drv, efx->net_dev,
203 "Flow control unsupported: tx ON rx OFF\n");
204 rc = -EINVAL;
205 goto out;
206 }
207
208 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) {
209 netif_dbg(efx, drv, efx->net_dev,
210 "Autonegotiation is disabled\n");
211 rc = -EINVAL;
212 goto out;
213 }
214
215 /* Hook for Falcon bug 11482 workaround */
216 if (efx->type->prepare_enable_fc_tx &&
217 (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
218 efx->type->prepare_enable_fc_tx(efx);
219
220 old_adv = efx->link_advertising[0];
221 old_fc = efx->wanted_fc;
222 efx_link_set_wanted_fc(efx, wanted_fc);
223 if (efx->link_advertising[0] != old_adv ||
224 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
225 rc = efx_mcdi_port_reconfigure(efx);
226 if (rc) {
227 netif_err(efx, drv, efx->net_dev,
228 "Unable to advertise requested flow "
229 "control setting\n");
230 goto out;
231 }
232 }
233
234 /* Reconfigure the MAC. The PHY *may* generate a link state change event
235 * if the user just changed the advertised capabilities, but there's no
236 * harm doing this twice */
237 efx_mac_reconfigure(efx, false);
238
239out:
240 mutex_unlock(&efx->mac_lock);
241
242 return rc;
243}
244
245/**
246 * efx_fill_test - fill in an individual self-test entry
247 * @test_index: Index of the test
248 * @strings: Ethtool strings, or %NULL
249 * @data: Ethtool test results, or %NULL
250 * @test: Pointer to test result (used only if data != %NULL)
251 * @unit_format: Unit name format (e.g. "chan\%d")
252 * @unit_id: Unit id (e.g. 0 for "chan0")
253 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
254 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
255 *
256 * Fill in an individual self-test entry.
257 */
258static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data,
259 int *test, const char *unit_format, int unit_id,
260 const char *test_format, const char *test_id)
261{
262 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
263
264 /* Fill data value, if applicable */
265 if (data)
266 data[test_index] = *test;
267
268 /* Fill string, if applicable */
269 if (strings) {
270 if (strchr(unit_format, '%'))
271 snprintf(unit_str, sizeof(unit_str),
272 unit_format, unit_id);
273 else
274 strcpy(unit_str, unit_format);
275 snprintf(test_str, sizeof(test_str), test_format, test_id);
276 snprintf(strings + test_index * ETH_GSTRING_LEN,
277 ETH_GSTRING_LEN,
278 "%-6s %-24s", unit_str, test_str);
279 }
280}
281
282#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
283#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->label
284#define EFX_LOOPBACK_NAME(_mode, _counter) \
285 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
286
287/**
288 * efx_fill_loopback_test - fill in a block of loopback self-test entries
289 * @efx: Efx NIC
290 * @lb_tests: Efx loopback self-test results structure
291 * @mode: Loopback test mode
292 * @test_index: Starting index of the test
293 * @strings: Ethtool strings, or %NULL
294 * @data: Ethtool test results, or %NULL
295 *
296 * Fill in a block of loopback self-test entries. Return new test
297 * index.
298 */
299static int efx_fill_loopback_test(struct efx_nic *efx,
300 struct efx_loopback_self_tests *lb_tests,
301 enum efx_loopback_mode mode,
302 unsigned int test_index,
303 u8 *strings, u64 *data)
304{
305 struct efx_channel *channel =
306 efx_get_channel(efx, efx->tx_channel_offset);
307 struct efx_tx_queue *tx_queue;
308
309 efx_for_each_channel_tx_queue(tx_queue, channel) {
310 efx_fill_test(test_index++, strings, data,
311 &lb_tests->tx_sent[tx_queue->label],
312 EFX_TX_QUEUE_NAME(tx_queue),
313 EFX_LOOPBACK_NAME(mode, "tx_sent"));
314 efx_fill_test(test_index++, strings, data,
315 &lb_tests->tx_done[tx_queue->label],
316 EFX_TX_QUEUE_NAME(tx_queue),
317 EFX_LOOPBACK_NAME(mode, "tx_done"));
318 }
319 efx_fill_test(test_index++, strings, data,
320 &lb_tests->rx_good,
321 "rx", 0,
322 EFX_LOOPBACK_NAME(mode, "rx_good"));
323 efx_fill_test(test_index++, strings, data,
324 &lb_tests->rx_bad,
325 "rx", 0,
326 EFX_LOOPBACK_NAME(mode, "rx_bad"));
327
328 return test_index;
329}
330
331/**
332 * efx_ethtool_fill_self_tests - get self-test details
333 * @efx: Efx NIC
334 * @tests: Efx self-test results structure, or %NULL
335 * @strings: Ethtool strings, or %NULL
336 * @data: Ethtool test results, or %NULL
337 *
338 * Get self-test number of strings, strings, and/or test results.
339 * Return number of strings (== number of test results).
340 *
341 * The reason for merging these three functions is to make sure that
342 * they can never be inconsistent.
343 */
344int efx_ethtool_fill_self_tests(struct efx_nic *efx,
345 struct efx_self_tests *tests,
346 u8 *strings, u64 *data)
347{
348 struct efx_channel *channel;
349 unsigned int n = 0, i;
350 enum efx_loopback_mode mode;
351
352 efx_fill_test(n++, strings, data, &tests->phy_alive,
353 "phy", 0, "alive", NULL);
354 efx_fill_test(n++, strings, data, &tests->nvram,
355 "core", 0, "nvram", NULL);
356 efx_fill_test(n++, strings, data, &tests->interrupt,
357 "core", 0, "interrupt", NULL);
358
359 /* Event queues */
360 efx_for_each_channel(channel, efx) {
361 efx_fill_test(n++, strings, data,
362 &tests->eventq_dma[channel->channel],
363 EFX_CHANNEL_NAME(channel),
364 "eventq.dma", NULL);
365 efx_fill_test(n++, strings, data,
366 &tests->eventq_int[channel->channel],
367 EFX_CHANNEL_NAME(channel),
368 "eventq.int", NULL);
369 }
370
371 efx_fill_test(n++, strings, data, &tests->memory,
372 "core", 0, "memory", NULL);
373 efx_fill_test(n++, strings, data, &tests->registers,
374 "core", 0, "registers", NULL);
375
376 for (i = 0; true; ++i) {
377 const char *name;
378
379 EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
380 name = efx_mcdi_phy_test_name(efx, i);
381 if (name == NULL)
382 break;
383
384 efx_fill_test(n++, strings, data, &tests->phy_ext[i], "phy", 0, name, NULL);
385 }
386
387 /* Loopback tests */
388 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
389 if (!(efx->loopback_modes & (1 << mode)))
390 continue;
391 n = efx_fill_loopback_test(efx,
392 &tests->loopback[mode], mode, n,
393 strings, data);
394 }
395
396 return n;
397}
398
399static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings)
400{
401 size_t n_stats = 0;
402 struct efx_channel *channel;
403
404 efx_for_each_channel(channel, efx) {
405 if (efx_channel_has_tx_queues(channel)) {
406 n_stats++;
407 if (strings != NULL) {
408 snprintf(strings, ETH_GSTRING_LEN,
409 "tx-%u.tx_packets",
410 channel->tx_queue[0].queue /
411 EFX_MAX_TXQ_PER_CHANNEL);
412
413 strings += ETH_GSTRING_LEN;
414 }
415 }
416 }
417 efx_for_each_channel(channel, efx) {
418 if (efx_channel_has_rx_queue(channel)) {
419 n_stats++;
420 if (strings != NULL) {
421 snprintf(strings, ETH_GSTRING_LEN,
422 "rx-%d.rx_packets", channel->channel);
423 strings += ETH_GSTRING_LEN;
424 }
425 }
426 }
427 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
428 unsigned short xdp;
429
430 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
431 n_stats++;
432 if (strings) {
433 snprintf(strings, ETH_GSTRING_LEN,
434 "tx-xdp-cpu-%hu.tx_packets", xdp);
435 strings += ETH_GSTRING_LEN;
436 }
437 }
438 }
439
440 return n_stats;
441}
442
443int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set)
444{
445 struct efx_nic *efx = efx_netdev_priv(net_dev);
446
447 switch (string_set) {
448 case ETH_SS_STATS:
449 return efx->type->describe_stats(efx, NULL) +
450 EFX_ETHTOOL_SW_STAT_COUNT +
451 efx_describe_per_queue_stats(efx, NULL) +
452 efx_ptp_describe_stats(efx, NULL);
453 case ETH_SS_TEST:
454 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
455 default:
456 return -EINVAL;
457 }
458}
459
460void efx_ethtool_get_strings(struct net_device *net_dev,
461 u32 string_set, u8 *strings)
462{
463 struct efx_nic *efx = efx_netdev_priv(net_dev);
464 int i;
465
466 switch (string_set) {
467 case ETH_SS_STATS:
468 strings += (efx->type->describe_stats(efx, strings) *
469 ETH_GSTRING_LEN);
470 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++)
471 strscpy(strings + i * ETH_GSTRING_LEN,
472 efx_sw_stat_desc[i].name, ETH_GSTRING_LEN);
473 strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;
474 strings += (efx_describe_per_queue_stats(efx, strings) *
475 ETH_GSTRING_LEN);
476 efx_ptp_describe_stats(efx, strings);
477 break;
478 case ETH_SS_TEST:
479 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL);
480 break;
481 default:
482 /* No other string sets */
483 break;
484 }
485}
486
487void efx_ethtool_get_stats(struct net_device *net_dev,
488 struct ethtool_stats *stats,
489 u64 *data)
490{
491 struct efx_nic *efx = efx_netdev_priv(net_dev);
492 const struct efx_sw_stat_desc *stat;
493 struct efx_channel *channel;
494 struct efx_tx_queue *tx_queue;
495 struct efx_rx_queue *rx_queue;
496 int i;
497
498 spin_lock_bh(&efx->stats_lock);
499
500 /* Get NIC statistics */
501 data += efx->type->update_stats(efx, data, NULL);
502
503 /* Get software statistics */
504 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) {
505 stat = &efx_sw_stat_desc[i];
506 switch (stat->source) {
507 case EFX_ETHTOOL_STAT_SOURCE_nic:
508 data[i] = stat->get_stat((void *)efx + stat->offset);
509 break;
510 case EFX_ETHTOOL_STAT_SOURCE_channel:
511 data[i] = 0;
512 efx_for_each_channel(channel, efx)
513 data[i] += stat->get_stat((void *)channel +
514 stat->offset);
515 break;
516 case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
517 data[i] = 0;
518 efx_for_each_channel(channel, efx) {
519 efx_for_each_channel_tx_queue(tx_queue, channel)
520 data[i] +=
521 stat->get_stat((void *)tx_queue
522 + stat->offset);
523 }
524 break;
525 }
526 }
527 data += EFX_ETHTOOL_SW_STAT_COUNT;
528
529 spin_unlock_bh(&efx->stats_lock);
530
531 efx_for_each_channel(channel, efx) {
532 if (efx_channel_has_tx_queues(channel)) {
533 *data = 0;
534 efx_for_each_channel_tx_queue(tx_queue, channel) {
535 *data += tx_queue->tx_packets;
536 }
537 data++;
538 }
539 }
540 efx_for_each_channel(channel, efx) {
541 if (efx_channel_has_rx_queue(channel)) {
542 *data = 0;
543 efx_for_each_channel_rx_queue(rx_queue, channel) {
544 *data += rx_queue->rx_packets;
545 }
546 data++;
547 }
548 }
549 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
550 int xdp;
551
552 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
553 data[0] = efx->xdp_tx_queues[xdp]->tx_packets;
554 data++;
555 }
556 }
557
558 efx_ptp_update_stats(efx, data);
559}
560
561/* This must be called with rtnl_lock held. */
562int efx_ethtool_get_link_ksettings(struct net_device *net_dev,
563 struct ethtool_link_ksettings *cmd)
564{
565 struct efx_nic *efx = efx_netdev_priv(net_dev);
566 struct efx_link_state *link_state = &efx->link_state;
567
568 mutex_lock(&efx->mac_lock);
569 efx_mcdi_phy_get_link_ksettings(efx, cmd);
570 mutex_unlock(&efx->mac_lock);
571
572 /* Both MACs support pause frames (bidirectional and respond-only) */
573 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
574 ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
575
576 if (LOOPBACK_INTERNAL(efx)) {
577 cmd->base.speed = link_state->speed;
578 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
579 }
580
581 return 0;
582}
583
584/* This must be called with rtnl_lock held. */
585int efx_ethtool_set_link_ksettings(struct net_device *net_dev,
586 const struct ethtool_link_ksettings *cmd)
587{
588 struct efx_nic *efx = efx_netdev_priv(net_dev);
589 int rc;
590
591 /* GMAC does not support 1000Mbps HD */
592 if ((cmd->base.speed == SPEED_1000) &&
593 (cmd->base.duplex != DUPLEX_FULL)) {
594 netif_dbg(efx, drv, efx->net_dev,
595 "rejecting unsupported 1000Mbps HD setting\n");
596 return -EINVAL;
597 }
598
599 mutex_lock(&efx->mac_lock);
600 rc = efx_mcdi_phy_set_link_ksettings(efx, cmd);
601 mutex_unlock(&efx->mac_lock);
602 return rc;
603}
604
605int efx_ethtool_get_fecparam(struct net_device *net_dev,
606 struct ethtool_fecparam *fecparam)
607{
608 struct efx_nic *efx = efx_netdev_priv(net_dev);
609 int rc;
610
611 mutex_lock(&efx->mac_lock);
612 rc = efx_mcdi_phy_get_fecparam(efx, fecparam);
613 mutex_unlock(&efx->mac_lock);
614
615 return rc;
616}
617
618int efx_ethtool_set_fecparam(struct net_device *net_dev,
619 struct ethtool_fecparam *fecparam)
620{
621 struct efx_nic *efx = efx_netdev_priv(net_dev);
622 int rc;
623
624 mutex_lock(&efx->mac_lock);
625 rc = efx_mcdi_phy_set_fecparam(efx, fecparam);
626 mutex_unlock(&efx->mac_lock);
627
628 return rc;
629}
630
631/* MAC address mask including only I/G bit */
632static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
633
634#define IP4_ADDR_FULL_MASK ((__force __be32)~0)
635#define IP_PROTO_FULL_MASK 0xFF
636#define PORT_FULL_MASK ((__force __be16)~0)
637#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
638
639static inline void ip6_fill_mask(__be32 *mask)
640{
641 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
642}
643
644static int efx_ethtool_get_class_rule(struct efx_nic *efx,
645 struct ethtool_rx_flow_spec *rule,
646 u32 *rss_context)
647{
648 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
649 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
650 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
651 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
652 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
653 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
654 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
655 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
656 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
657 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
658 struct efx_filter_spec spec;
659 int rc;
660
661 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
662 rule->location, &spec);
663 if (rc)
664 return rc;
665
666 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP)
667 rule->ring_cookie = RX_CLS_FLOW_DISC;
668 else
669 rule->ring_cookie = spec.dmaq_id;
670
671 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
672 spec.ether_type == htons(ETH_P_IP) &&
673 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
674 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
675 !(spec.match_flags &
676 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
677 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
678 EFX_FILTER_MATCH_IP_PROTO |
679 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
680 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
681 TCP_V4_FLOW : UDP_V4_FLOW);
682 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
683 ip_entry->ip4dst = spec.loc_host[0];
684 ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
685 }
686 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
687 ip_entry->ip4src = spec.rem_host[0];
688 ip_mask->ip4src = IP4_ADDR_FULL_MASK;
689 }
690 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
691 ip_entry->pdst = spec.loc_port;
692 ip_mask->pdst = PORT_FULL_MASK;
693 }
694 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
695 ip_entry->psrc = spec.rem_port;
696 ip_mask->psrc = PORT_FULL_MASK;
697 }
698 } else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
699 spec.ether_type == htons(ETH_P_IPV6) &&
700 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
701 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
702 !(spec.match_flags &
703 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
704 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
705 EFX_FILTER_MATCH_IP_PROTO |
706 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
707 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
708 TCP_V6_FLOW : UDP_V6_FLOW);
709 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
710 memcpy(ip6_entry->ip6dst, spec.loc_host,
711 sizeof(ip6_entry->ip6dst));
712 ip6_fill_mask(ip6_mask->ip6dst);
713 }
714 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
715 memcpy(ip6_entry->ip6src, spec.rem_host,
716 sizeof(ip6_entry->ip6src));
717 ip6_fill_mask(ip6_mask->ip6src);
718 }
719 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
720 ip6_entry->pdst = spec.loc_port;
721 ip6_mask->pdst = PORT_FULL_MASK;
722 }
723 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
724 ip6_entry->psrc = spec.rem_port;
725 ip6_mask->psrc = PORT_FULL_MASK;
726 }
727 } else if (!(spec.match_flags &
728 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG |
729 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE |
730 EFX_FILTER_MATCH_OUTER_VID))) {
731 rule->flow_type = ETHER_FLOW;
732 if (spec.match_flags &
733 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) {
734 ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
735 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC)
736 eth_broadcast_addr(mac_mask->h_dest);
737 else
738 ether_addr_copy(mac_mask->h_dest,
739 mac_addr_ig_mask);
740 }
741 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) {
742 ether_addr_copy(mac_entry->h_source, spec.rem_mac);
743 eth_broadcast_addr(mac_mask->h_source);
744 }
745 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) {
746 mac_entry->h_proto = spec.ether_type;
747 mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
748 }
749 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
750 spec.ether_type == htons(ETH_P_IP) &&
751 !(spec.match_flags &
752 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
753 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
754 EFX_FILTER_MATCH_IP_PROTO))) {
755 rule->flow_type = IPV4_USER_FLOW;
756 uip_entry->ip_ver = ETH_RX_NFC_IP4;
757 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
758 uip_mask->proto = IP_PROTO_FULL_MASK;
759 uip_entry->proto = spec.ip_proto;
760 }
761 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
762 uip_entry->ip4dst = spec.loc_host[0];
763 uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
764 }
765 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
766 uip_entry->ip4src = spec.rem_host[0];
767 uip_mask->ip4src = IP4_ADDR_FULL_MASK;
768 }
769 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
770 spec.ether_type == htons(ETH_P_IPV6) &&
771 !(spec.match_flags &
772 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
773 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
774 EFX_FILTER_MATCH_IP_PROTO))) {
775 rule->flow_type = IPV6_USER_FLOW;
776 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
777 uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
778 uip6_entry->l4_proto = spec.ip_proto;
779 }
780 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
781 memcpy(uip6_entry->ip6dst, spec.loc_host,
782 sizeof(uip6_entry->ip6dst));
783 ip6_fill_mask(uip6_mask->ip6dst);
784 }
785 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
786 memcpy(uip6_entry->ip6src, spec.rem_host,
787 sizeof(uip6_entry->ip6src));
788 ip6_fill_mask(uip6_mask->ip6src);
789 }
790 } else {
791 /* The above should handle all filters that we insert */
792 WARN_ON(1);
793 return -EINVAL;
794 }
795
796 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) {
797 rule->flow_type |= FLOW_EXT;
798 rule->h_ext.vlan_tci = spec.outer_vid;
799 rule->m_ext.vlan_tci = htons(0xfff);
800 }
801
802 if (spec.flags & EFX_FILTER_FLAG_RX_RSS) {
803 rule->flow_type |= FLOW_RSS;
804 *rss_context = spec.rss_context;
805 }
806
807 return rc;
808}
809
810int efx_ethtool_get_rxnfc(struct net_device *net_dev,
811 struct ethtool_rxnfc *info, u32 *rule_locs)
812{
813 struct efx_nic *efx = efx_netdev_priv(net_dev);
814 u32 rss_context = 0;
815 s32 rc = 0;
816
817 switch (info->cmd) {
818 case ETHTOOL_GRXRINGS:
819 info->data = efx->n_rx_channels;
820 return 0;
821
822 case ETHTOOL_GRXFH: {
823 struct efx_rss_context *ctx = &efx->rss_context;
824 __u64 data;
825
826 mutex_lock(&efx->rss_lock);
827 if (info->flow_type & FLOW_RSS && info->rss_context) {
828 ctx = efx_find_rss_context_entry(efx, info->rss_context);
829 if (!ctx) {
830 rc = -ENOENT;
831 goto out_unlock;
832 }
833 }
834
835 data = 0;
836 if (!efx_rss_active(ctx)) /* No RSS */
837 goto out_setdata_unlock;
838
839 switch (info->flow_type & ~FLOW_RSS) {
840 case UDP_V4_FLOW:
841 case UDP_V6_FLOW:
842 if (ctx->rx_hash_udp_4tuple)
843 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
844 RXH_IP_SRC | RXH_IP_DST);
845 else
846 data = RXH_IP_SRC | RXH_IP_DST;
847 break;
848 case TCP_V4_FLOW:
849 case TCP_V6_FLOW:
850 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
851 RXH_IP_SRC | RXH_IP_DST);
852 break;
853 case SCTP_V4_FLOW:
854 case SCTP_V6_FLOW:
855 case AH_ESP_V4_FLOW:
856 case AH_ESP_V6_FLOW:
857 case IPV4_FLOW:
858 case IPV6_FLOW:
859 data = RXH_IP_SRC | RXH_IP_DST;
860 break;
861 default:
862 break;
863 }
864out_setdata_unlock:
865 info->data = data;
866out_unlock:
867 mutex_unlock(&efx->rss_lock);
868 return rc;
869 }
870
871 case ETHTOOL_GRXCLSRLCNT:
872 info->data = efx_filter_get_rx_id_limit(efx);
873 if (info->data == 0)
874 return -EOPNOTSUPP;
875 info->data |= RX_CLS_LOC_SPECIAL;
876 info->rule_cnt =
877 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
878 return 0;
879
880 case ETHTOOL_GRXCLSRULE:
881 if (efx_filter_get_rx_id_limit(efx) == 0)
882 return -EOPNOTSUPP;
883 rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context);
884 if (rc < 0)
885 return rc;
886 if (info->fs.flow_type & FLOW_RSS)
887 info->rss_context = rss_context;
888 return 0;
889
890 case ETHTOOL_GRXCLSRLALL:
891 info->data = efx_filter_get_rx_id_limit(efx);
892 if (info->data == 0)
893 return -EOPNOTSUPP;
894 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
895 rule_locs, info->rule_cnt);
896 if (rc < 0)
897 return rc;
898 info->rule_cnt = rc;
899 return 0;
900
901 default:
902 return -EOPNOTSUPP;
903 }
904}
905
906static inline bool ip6_mask_is_full(__be32 mask[4])
907{
908 return !~(mask[0] & mask[1] & mask[2] & mask[3]);
909}
910
911static inline bool ip6_mask_is_empty(__be32 mask[4])
912{
913 return !(mask[0] | mask[1] | mask[2] | mask[3]);
914}
915
916static int efx_ethtool_set_class_rule(struct efx_nic *efx,
917 struct ethtool_rx_flow_spec *rule,
918 u32 rss_context)
919{
920 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
921 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
922 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
923 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
924 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
925 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
926 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
927 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
928 u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS);
929 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
930 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
931 enum efx_filter_flags flags = 0;
932 struct efx_filter_spec spec;
933 int rc;
934
935 /* Check that user wants us to choose the location */
936 if (rule->location != RX_CLS_LOC_ANY)
937 return -EINVAL;
938
939 /* Range-check ring_cookie */
940 if (rule->ring_cookie >= efx->n_rx_channels &&
941 rule->ring_cookie != RX_CLS_FLOW_DISC)
942 return -EINVAL;
943
944 /* Check for unsupported extensions */
945 if ((rule->flow_type & FLOW_EXT) &&
946 (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
947 rule->m_ext.data[1]))
948 return -EINVAL;
949
950 if (efx->rx_scatter)
951 flags |= EFX_FILTER_FLAG_RX_SCATTER;
952 if (rule->flow_type & FLOW_RSS)
953 flags |= EFX_FILTER_FLAG_RX_RSS;
954
955 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags,
956 (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
957 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
958
959 if (rule->flow_type & FLOW_RSS)
960 spec.rss_context = rss_context;
961
962 switch (flow_type) {
963 case TCP_V4_FLOW:
964 case UDP_V4_FLOW:
965 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
966 EFX_FILTER_MATCH_IP_PROTO);
967 spec.ether_type = htons(ETH_P_IP);
968 spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP
969 : IPPROTO_UDP;
970 if (ip_mask->ip4dst) {
971 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
972 return -EINVAL;
973 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
974 spec.loc_host[0] = ip_entry->ip4dst;
975 }
976 if (ip_mask->ip4src) {
977 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
978 return -EINVAL;
979 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
980 spec.rem_host[0] = ip_entry->ip4src;
981 }
982 if (ip_mask->pdst) {
983 if (ip_mask->pdst != PORT_FULL_MASK)
984 return -EINVAL;
985 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
986 spec.loc_port = ip_entry->pdst;
987 }
988 if (ip_mask->psrc) {
989 if (ip_mask->psrc != PORT_FULL_MASK)
990 return -EINVAL;
991 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
992 spec.rem_port = ip_entry->psrc;
993 }
994 if (ip_mask->tos)
995 return -EINVAL;
996 break;
997
998 case TCP_V6_FLOW:
999 case UDP_V6_FLOW:
1000 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
1001 EFX_FILTER_MATCH_IP_PROTO);
1002 spec.ether_type = htons(ETH_P_IPV6);
1003 spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP
1004 : IPPROTO_UDP;
1005 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1006 if (!ip6_mask_is_full(ip6_mask->ip6dst))
1007 return -EINVAL;
1008 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1009 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1010 }
1011 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1012 if (!ip6_mask_is_full(ip6_mask->ip6src))
1013 return -EINVAL;
1014 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1015 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1016 }
1017 if (ip6_mask->pdst) {
1018 if (ip6_mask->pdst != PORT_FULL_MASK)
1019 return -EINVAL;
1020 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
1021 spec.loc_port = ip6_entry->pdst;
1022 }
1023 if (ip6_mask->psrc) {
1024 if (ip6_mask->psrc != PORT_FULL_MASK)
1025 return -EINVAL;
1026 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
1027 spec.rem_port = ip6_entry->psrc;
1028 }
1029 if (ip6_mask->tclass)
1030 return -EINVAL;
1031 break;
1032
1033 case IPV4_USER_FLOW:
1034 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1035 uip_entry->ip_ver != ETH_RX_NFC_IP4)
1036 return -EINVAL;
1037 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1038 spec.ether_type = htons(ETH_P_IP);
1039 if (uip_mask->ip4dst) {
1040 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1041 return -EINVAL;
1042 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1043 spec.loc_host[0] = uip_entry->ip4dst;
1044 }
1045 if (uip_mask->ip4src) {
1046 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1047 return -EINVAL;
1048 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1049 spec.rem_host[0] = uip_entry->ip4src;
1050 }
1051 if (uip_mask->proto) {
1052 if (uip_mask->proto != IP_PROTO_FULL_MASK)
1053 return -EINVAL;
1054 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1055 spec.ip_proto = uip_entry->proto;
1056 }
1057 break;
1058
1059 case IPV6_USER_FLOW:
1060 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1061 return -EINVAL;
1062 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1063 spec.ether_type = htons(ETH_P_IPV6);
1064 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1065 if (!ip6_mask_is_full(uip6_mask->ip6dst))
1066 return -EINVAL;
1067 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1068 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1069 }
1070 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1071 if (!ip6_mask_is_full(uip6_mask->ip6src))
1072 return -EINVAL;
1073 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1074 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1075 }
1076 if (uip6_mask->l4_proto) {
1077 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1078 return -EINVAL;
1079 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1080 spec.ip_proto = uip6_entry->l4_proto;
1081 }
1082 break;
1083
1084 case ETHER_FLOW:
1085 if (!is_zero_ether_addr(mac_mask->h_dest)) {
1086 if (ether_addr_equal(mac_mask->h_dest,
1087 mac_addr_ig_mask))
1088 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
1089 else if (is_broadcast_ether_addr(mac_mask->h_dest))
1090 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;
1091 else
1092 return -EINVAL;
1093 ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1094 }
1095 if (!is_zero_ether_addr(mac_mask->h_source)) {
1096 if (!is_broadcast_ether_addr(mac_mask->h_source))
1097 return -EINVAL;
1098 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;
1099 ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1100 }
1101 if (mac_mask->h_proto) {
1102 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1103 return -EINVAL;
1104 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;
1105 spec.ether_type = mac_entry->h_proto;
1106 }
1107 break;
1108
1109 default:
1110 return -EINVAL;
1111 }
1112
1113 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1114 if (rule->m_ext.vlan_tci != htons(0xfff))
1115 return -EINVAL;
1116 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;
1117 spec.outer_vid = rule->h_ext.vlan_tci;
1118 }
1119
1120 rc = efx_filter_insert_filter(efx, &spec, true);
1121 if (rc < 0)
1122 return rc;
1123
1124 rule->location = rc;
1125 return 0;
1126}
1127
1128int efx_ethtool_set_rxnfc(struct net_device *net_dev,
1129 struct ethtool_rxnfc *info)
1130{
1131 struct efx_nic *efx = efx_netdev_priv(net_dev);
1132
1133 if (efx_filter_get_rx_id_limit(efx) == 0)
1134 return -EOPNOTSUPP;
1135
1136 switch (info->cmd) {
1137 case ETHTOOL_SRXCLSRLINS:
1138 return efx_ethtool_set_class_rule(efx, &info->fs,
1139 info->rss_context);
1140
1141 case ETHTOOL_SRXCLSRLDEL:
1142 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
1143 info->fs.location);
1144
1145 default:
1146 return -EOPNOTSUPP;
1147 }
1148}
1149
1150u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1151{
1152 struct efx_nic *efx = efx_netdev_priv(net_dev);
1153
1154 if (efx->n_rx_channels == 1)
1155 return 0;
1156 return ARRAY_SIZE(efx->rss_context.rx_indir_table);
1157}
1158
1159u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev)
1160{
1161 struct efx_nic *efx = efx_netdev_priv(net_dev);
1162
1163 return efx->type->rx_hash_key_size;
1164}
1165
1166static int efx_ethtool_get_rxfh_context(struct net_device *net_dev,
1167 struct ethtool_rxfh_param *rxfh)
1168{
1169 struct efx_nic *efx = efx_netdev_priv(net_dev);
1170 struct efx_rss_context *ctx;
1171 int rc = 0;
1172
1173 if (!efx->type->rx_pull_rss_context_config)
1174 return -EOPNOTSUPP;
1175
1176 mutex_lock(&efx->rss_lock);
1177 ctx = efx_find_rss_context_entry(efx, rxfh->rss_context);
1178 if (!ctx) {
1179 rc = -ENOENT;
1180 goto out_unlock;
1181 }
1182 rc = efx->type->rx_pull_rss_context_config(efx, ctx);
1183 if (rc)
1184 goto out_unlock;
1185
1186 rxfh->hfunc = ETH_RSS_HASH_TOP;
1187 if (rxfh->indir)
1188 memcpy(rxfh->indir, ctx->rx_indir_table,
1189 sizeof(ctx->rx_indir_table));
1190 if (rxfh->key)
1191 memcpy(rxfh->key, ctx->rx_hash_key,
1192 efx->type->rx_hash_key_size);
1193out_unlock:
1194 mutex_unlock(&efx->rss_lock);
1195 return rc;
1196}
1197
1198int efx_ethtool_get_rxfh(struct net_device *net_dev,
1199 struct ethtool_rxfh_param *rxfh)
1200{
1201 struct efx_nic *efx = efx_netdev_priv(net_dev);
1202 int rc;
1203
1204 if (rxfh->rss_context)
1205 return efx_ethtool_get_rxfh_context(net_dev, rxfh);
1206
1207 rc = efx->type->rx_pull_rss_config(efx);
1208 if (rc)
1209 return rc;
1210
1211 rxfh->hfunc = ETH_RSS_HASH_TOP;
1212 if (rxfh->indir)
1213 memcpy(rxfh->indir, efx->rss_context.rx_indir_table,
1214 sizeof(efx->rss_context.rx_indir_table));
1215 if (rxfh->key)
1216 memcpy(rxfh->key, efx->rss_context.rx_hash_key,
1217 efx->type->rx_hash_key_size);
1218 return 0;
1219}
1220
1221static int efx_ethtool_set_rxfh_context(struct net_device *net_dev,
1222 struct ethtool_rxfh_param *rxfh,
1223 struct netlink_ext_ack *extack)
1224{
1225 struct efx_nic *efx = efx_netdev_priv(net_dev);
1226 u32 *rss_context = &rxfh->rss_context;
1227 struct efx_rss_context *ctx;
1228 u32 *indir = rxfh->indir;
1229 bool allocated = false;
1230 u8 *key = rxfh->key;
1231 int rc;
1232
1233 if (!efx->type->rx_push_rss_context_config)
1234 return -EOPNOTSUPP;
1235
1236 mutex_lock(&efx->rss_lock);
1237
1238 if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) {
1239 if (rxfh->rss_delete) {
1240 /* alloc + delete == Nothing to do */
1241 rc = -EINVAL;
1242 goto out_unlock;
1243 }
1244 ctx = efx_alloc_rss_context_entry(efx);
1245 if (!ctx) {
1246 rc = -ENOMEM;
1247 goto out_unlock;
1248 }
1249 ctx->context_id = EFX_MCDI_RSS_CONTEXT_INVALID;
1250 /* Initialise indir table and key to defaults */
1251 efx_set_default_rx_indir_table(efx, ctx);
1252 netdev_rss_key_fill(ctx->rx_hash_key, sizeof(ctx->rx_hash_key));
1253 allocated = true;
1254 } else {
1255 ctx = efx_find_rss_context_entry(efx, *rss_context);
1256 if (!ctx) {
1257 rc = -ENOENT;
1258 goto out_unlock;
1259 }
1260 }
1261
1262 if (rxfh->rss_delete) {
1263 /* delete this context */
1264 rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL);
1265 if (!rc)
1266 efx_free_rss_context_entry(ctx);
1267 goto out_unlock;
1268 }
1269
1270 if (!key)
1271 key = ctx->rx_hash_key;
1272 if (!indir)
1273 indir = ctx->rx_indir_table;
1274
1275 rc = efx->type->rx_push_rss_context_config(efx, ctx, indir, key);
1276 if (rc && allocated)
1277 efx_free_rss_context_entry(ctx);
1278 else
1279 *rss_context = ctx->user_id;
1280out_unlock:
1281 mutex_unlock(&efx->rss_lock);
1282 return rc;
1283}
1284
1285int efx_ethtool_set_rxfh(struct net_device *net_dev,
1286 struct ethtool_rxfh_param *rxfh,
1287 struct netlink_ext_ack *extack)
1288{
1289 struct efx_nic *efx = efx_netdev_priv(net_dev);
1290 u32 *indir = rxfh->indir;
1291 u8 *key = rxfh->key;
1292
1293 /* Hash function is Toeplitz, cannot be changed */
1294 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
1295 rxfh->hfunc != ETH_RSS_HASH_TOP)
1296 return -EOPNOTSUPP;
1297
1298 if (rxfh->rss_context)
1299 return efx_ethtool_set_rxfh_context(net_dev, rxfh, extack);
1300
1301 if (!indir && !key)
1302 return 0;
1303
1304 if (!key)
1305 key = efx->rss_context.rx_hash_key;
1306 if (!indir)
1307 indir = efx->rss_context.rx_indir_table;
1308
1309 return efx->type->rx_push_rss_config(efx, true, indir, key);
1310}
1311
1312int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
1313{
1314 struct efx_nic *efx = efx_netdev_priv(net_dev);
1315 int rc;
1316
1317 rc = efx->type->map_reset_flags(flags);
1318 if (rc < 0)
1319 return rc;
1320
1321 return efx_reset(efx, rc);
1322}
1323
1324int efx_ethtool_get_module_eeprom(struct net_device *net_dev,
1325 struct ethtool_eeprom *ee,
1326 u8 *data)
1327{
1328 struct efx_nic *efx = efx_netdev_priv(net_dev);
1329 int ret;
1330
1331 mutex_lock(&efx->mac_lock);
1332 ret = efx_mcdi_phy_get_module_eeprom(efx, ee, data);
1333 mutex_unlock(&efx->mac_lock);
1334
1335 return ret;
1336}
1337
1338int efx_ethtool_get_module_info(struct net_device *net_dev,
1339 struct ethtool_modinfo *modinfo)
1340{
1341 struct efx_nic *efx = efx_netdev_priv(net_dev);
1342 int ret;
1343
1344 mutex_lock(&efx->mac_lock);
1345 ret = efx_mcdi_phy_get_module_info(efx, modinfo);
1346 mutex_unlock(&efx->mac_lock);
1347
1348 return ret;
1349}