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
20 struct 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
efx_get_uint_stat(void * field)43 static u64 efx_get_uint_stat(void *field)
44 {
45 return *(unsigned int *)field;
46 }
47
efx_get_atomic_stat(void * field)48 static 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
68 static 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 #ifdef CONFIG_RFS_ACCEL
95 EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(rfs_filter_count),
96 EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_succeeded),
97 EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_failed),
98 #endif
99 };
100
101 #define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc)
102
efx_ethtool_get_drvinfo(struct net_device * net_dev,struct ethtool_drvinfo * info)103 void efx_ethtool_get_drvinfo(struct net_device *net_dev,
104 struct ethtool_drvinfo *info)
105 {
106 struct efx_nic *efx = netdev_priv(net_dev);
107
108 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
109 efx_mcdi_print_fwver(efx, info->fw_version,
110 sizeof(info->fw_version));
111 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
112 }
113
efx_ethtool_get_msglevel(struct net_device * net_dev)114 u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
115 {
116 struct efx_nic *efx = netdev_priv(net_dev);
117
118 return efx->msg_enable;
119 }
120
efx_ethtool_set_msglevel(struct net_device * net_dev,u32 msg_enable)121 void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
122 {
123 struct efx_nic *efx = netdev_priv(net_dev);
124
125 efx->msg_enable = msg_enable;
126 }
127
efx_ethtool_self_test(struct net_device * net_dev,struct ethtool_test * test,u64 * data)128 void efx_ethtool_self_test(struct net_device *net_dev,
129 struct ethtool_test *test, u64 *data)
130 {
131 struct efx_nic *efx = netdev_priv(net_dev);
132 struct efx_self_tests *efx_tests;
133 bool already_up;
134 int rc = -ENOMEM;
135
136 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
137 if (!efx_tests)
138 goto fail;
139
140 if (efx->state != STATE_READY) {
141 rc = -EBUSY;
142 goto out;
143 }
144
145 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
146 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
147
148 /* We need rx buffers and interrupts. */
149 already_up = (efx->net_dev->flags & IFF_UP);
150 if (!already_up) {
151 rc = dev_open(efx->net_dev, NULL);
152 if (rc) {
153 netif_err(efx, drv, efx->net_dev,
154 "failed opening device.\n");
155 goto out;
156 }
157 }
158
159 rc = efx_selftest(efx, efx_tests, test->flags);
160
161 if (!already_up)
162 dev_close(efx->net_dev);
163
164 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
165 rc == 0 ? "passed" : "failed",
166 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
167
168 out:
169 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
170 kfree(efx_tests);
171 fail:
172 if (rc)
173 test->flags |= ETH_TEST_FL_FAILED;
174 }
175
efx_ethtool_get_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)176 void efx_ethtool_get_pauseparam(struct net_device *net_dev,
177 struct ethtool_pauseparam *pause)
178 {
179 struct efx_nic *efx = netdev_priv(net_dev);
180
181 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
182 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
183 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
184 }
185
efx_ethtool_set_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)186 int efx_ethtool_set_pauseparam(struct net_device *net_dev,
187 struct ethtool_pauseparam *pause)
188 {
189 struct efx_nic *efx = netdev_priv(net_dev);
190 u8 wanted_fc, old_fc;
191 u32 old_adv;
192 int rc = 0;
193
194 mutex_lock(&efx->mac_lock);
195
196 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
197 (pause->tx_pause ? EFX_FC_TX : 0) |
198 (pause->autoneg ? EFX_FC_AUTO : 0));
199
200 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
201 netif_dbg(efx, drv, efx->net_dev,
202 "Flow control unsupported: tx ON rx OFF\n");
203 rc = -EINVAL;
204 goto out;
205 }
206
207 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) {
208 netif_dbg(efx, drv, efx->net_dev,
209 "Autonegotiation is disabled\n");
210 rc = -EINVAL;
211 goto out;
212 }
213
214 /* Hook for Falcon bug 11482 workaround */
215 if (efx->type->prepare_enable_fc_tx &&
216 (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
217 efx->type->prepare_enable_fc_tx(efx);
218
219 old_adv = efx->link_advertising[0];
220 old_fc = efx->wanted_fc;
221 efx_link_set_wanted_fc(efx, wanted_fc);
222 if (efx->link_advertising[0] != old_adv ||
223 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
224 rc = efx_mcdi_port_reconfigure(efx);
225 if (rc) {
226 netif_err(efx, drv, efx->net_dev,
227 "Unable to advertise requested flow "
228 "control setting\n");
229 goto out;
230 }
231 }
232
233 /* Reconfigure the MAC. The PHY *may* generate a link state change event
234 * if the user just changed the advertised capabilities, but there's no
235 * harm doing this twice */
236 efx_mac_reconfigure(efx, false);
237
238 out:
239 mutex_unlock(&efx->mac_lock);
240
241 return rc;
242 }
243
244 /**
245 * efx_fill_test - fill in an individual self-test entry
246 * @test_index: Index of the test
247 * @strings: Ethtool strings, or %NULL
248 * @data: Ethtool test results, or %NULL
249 * @test: Pointer to test result (used only if data != %NULL)
250 * @unit_format: Unit name format (e.g. "chan\%d")
251 * @unit_id: Unit id (e.g. 0 for "chan0")
252 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
253 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
254 *
255 * Fill in an individual self-test entry.
256 */
efx_fill_test(unsigned int test_index,u8 * strings,u64 * data,int * test,const char * unit_format,int unit_id,const char * test_format,const char * test_id)257 static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data,
258 int *test, const char *unit_format, int unit_id,
259 const char *test_format, const char *test_id)
260 {
261 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
262
263 /* Fill data value, if applicable */
264 if (data)
265 data[test_index] = *test;
266
267 /* Fill string, if applicable */
268 if (strings) {
269 if (strchr(unit_format, '%'))
270 snprintf(unit_str, sizeof(unit_str),
271 unit_format, unit_id);
272 else
273 strcpy(unit_str, unit_format);
274 snprintf(test_str, sizeof(test_str), test_format, test_id);
275 snprintf(strings + test_index * ETH_GSTRING_LEN,
276 ETH_GSTRING_LEN,
277 "%-6s %-24s", unit_str, test_str);
278 }
279 }
280
281 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
282 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->label
283 #define EFX_LOOPBACK_NAME(_mode, _counter) \
284 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
285
286 /**
287 * efx_fill_loopback_test - fill in a block of loopback self-test entries
288 * @efx: Efx NIC
289 * @lb_tests: Efx loopback self-test results structure
290 * @mode: Loopback test mode
291 * @test_index: Starting index of the test
292 * @strings: Ethtool strings, or %NULL
293 * @data: Ethtool test results, or %NULL
294 *
295 * Fill in a block of loopback self-test entries. Return new test
296 * index.
297 */
efx_fill_loopback_test(struct efx_nic * efx,struct efx_loopback_self_tests * lb_tests,enum efx_loopback_mode mode,unsigned int test_index,u8 * strings,u64 * data)298 static int efx_fill_loopback_test(struct efx_nic *efx,
299 struct efx_loopback_self_tests *lb_tests,
300 enum efx_loopback_mode mode,
301 unsigned int test_index,
302 u8 *strings, u64 *data)
303 {
304 struct efx_channel *channel =
305 efx_get_channel(efx, efx->tx_channel_offset);
306 struct efx_tx_queue *tx_queue;
307
308 efx_for_each_channel_tx_queue(tx_queue, channel) {
309 efx_fill_test(test_index++, strings, data,
310 &lb_tests->tx_sent[tx_queue->label],
311 EFX_TX_QUEUE_NAME(tx_queue),
312 EFX_LOOPBACK_NAME(mode, "tx_sent"));
313 efx_fill_test(test_index++, strings, data,
314 &lb_tests->tx_done[tx_queue->label],
315 EFX_TX_QUEUE_NAME(tx_queue),
316 EFX_LOOPBACK_NAME(mode, "tx_done"));
317 }
318 efx_fill_test(test_index++, strings, data,
319 &lb_tests->rx_good,
320 "rx", 0,
321 EFX_LOOPBACK_NAME(mode, "rx_good"));
322 efx_fill_test(test_index++, strings, data,
323 &lb_tests->rx_bad,
324 "rx", 0,
325 EFX_LOOPBACK_NAME(mode, "rx_bad"));
326
327 return test_index;
328 }
329
330 /**
331 * efx_ethtool_fill_self_tests - get self-test details
332 * @efx: Efx NIC
333 * @tests: Efx self-test results structure, or %NULL
334 * @strings: Ethtool strings, or %NULL
335 * @data: Ethtool test results, or %NULL
336 *
337 * Get self-test number of strings, strings, and/or test results.
338 * Return number of strings (== number of test results).
339 *
340 * The reason for merging these three functions is to make sure that
341 * they can never be inconsistent.
342 */
efx_ethtool_fill_self_tests(struct efx_nic * efx,struct efx_self_tests * tests,u8 * strings,u64 * data)343 int efx_ethtool_fill_self_tests(struct efx_nic *efx,
344 struct efx_self_tests *tests,
345 u8 *strings, u64 *data)
346 {
347 struct efx_channel *channel;
348 unsigned int n = 0, i;
349 enum efx_loopback_mode mode;
350
351 efx_fill_test(n++, strings, data, &tests->phy_alive,
352 "phy", 0, "alive", NULL);
353 efx_fill_test(n++, strings, data, &tests->nvram,
354 "core", 0, "nvram", NULL);
355 efx_fill_test(n++, strings, data, &tests->interrupt,
356 "core", 0, "interrupt", NULL);
357
358 /* Event queues */
359 efx_for_each_channel(channel, efx) {
360 efx_fill_test(n++, strings, data,
361 &tests->eventq_dma[channel->channel],
362 EFX_CHANNEL_NAME(channel),
363 "eventq.dma", NULL);
364 efx_fill_test(n++, strings, data,
365 &tests->eventq_int[channel->channel],
366 EFX_CHANNEL_NAME(channel),
367 "eventq.int", NULL);
368 }
369
370 efx_fill_test(n++, strings, data, &tests->memory,
371 "core", 0, "memory", NULL);
372 efx_fill_test(n++, strings, data, &tests->registers,
373 "core", 0, "registers", NULL);
374
375 for (i = 0; true; ++i) {
376 const char *name;
377
378 EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
379 name = efx_mcdi_phy_test_name(efx, i);
380 if (name == NULL)
381 break;
382
383 efx_fill_test(n++, strings, data, &tests->phy_ext[i], "phy", 0, name, NULL);
384 }
385
386 /* Loopback tests */
387 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
388 if (!(efx->loopback_modes & (1 << mode)))
389 continue;
390 n = efx_fill_loopback_test(efx,
391 &tests->loopback[mode], mode, n,
392 strings, data);
393 }
394
395 return n;
396 }
397
efx_describe_per_queue_stats(struct efx_nic * efx,u8 * strings)398 static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings)
399 {
400 size_t n_stats = 0;
401 struct efx_channel *channel;
402
403 efx_for_each_channel(channel, efx) {
404 if (efx_channel_has_tx_queues(channel)) {
405 n_stats++;
406 if (strings != NULL) {
407 snprintf(strings, ETH_GSTRING_LEN,
408 "tx-%u.tx_packets",
409 channel->tx_queue[0].queue /
410 EFX_MAX_TXQ_PER_CHANNEL);
411
412 strings += ETH_GSTRING_LEN;
413 }
414 }
415 }
416 efx_for_each_channel(channel, efx) {
417 if (efx_channel_has_rx_queue(channel)) {
418 n_stats++;
419 if (strings != NULL) {
420 snprintf(strings, ETH_GSTRING_LEN,
421 "rx-%d.rx_packets", channel->channel);
422 strings += ETH_GSTRING_LEN;
423 }
424 }
425 }
426 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
427 unsigned short xdp;
428
429 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
430 n_stats++;
431 if (strings) {
432 snprintf(strings, ETH_GSTRING_LEN,
433 "tx-xdp-cpu-%hu.tx_packets", xdp);
434 strings += ETH_GSTRING_LEN;
435 }
436 }
437 }
438
439 return n_stats;
440 }
441
efx_ethtool_get_sset_count(struct net_device * net_dev,int string_set)442 int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set)
443 {
444 struct efx_nic *efx = netdev_priv(net_dev);
445
446 switch (string_set) {
447 case ETH_SS_STATS:
448 return efx->type->describe_stats(efx, NULL) +
449 EFX_ETHTOOL_SW_STAT_COUNT +
450 efx_describe_per_queue_stats(efx, NULL) +
451 efx_ptp_describe_stats(efx, NULL);
452 case ETH_SS_TEST:
453 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
454 default:
455 return -EINVAL;
456 }
457 }
458
efx_ethtool_get_strings(struct net_device * net_dev,u32 string_set,u8 * strings)459 void efx_ethtool_get_strings(struct net_device *net_dev,
460 u32 string_set, u8 *strings)
461 {
462 struct efx_nic *efx = netdev_priv(net_dev);
463 int i;
464
465 switch (string_set) {
466 case ETH_SS_STATS:
467 strings += (efx->type->describe_stats(efx, strings) *
468 ETH_GSTRING_LEN);
469 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++)
470 strlcpy(strings + i * ETH_GSTRING_LEN,
471 efx_sw_stat_desc[i].name, ETH_GSTRING_LEN);
472 strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;
473 strings += (efx_describe_per_queue_stats(efx, strings) *
474 ETH_GSTRING_LEN);
475 efx_ptp_describe_stats(efx, strings);
476 break;
477 case ETH_SS_TEST:
478 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL);
479 break;
480 default:
481 /* No other string sets */
482 break;
483 }
484 }
485
efx_ethtool_get_stats(struct net_device * net_dev,struct ethtool_stats * stats,u64 * data)486 void efx_ethtool_get_stats(struct net_device *net_dev,
487 struct ethtool_stats *stats,
488 u64 *data)
489 {
490 struct efx_nic *efx = netdev_priv(net_dev);
491 const struct efx_sw_stat_desc *stat;
492 struct efx_channel *channel;
493 struct efx_tx_queue *tx_queue;
494 struct efx_rx_queue *rx_queue;
495 int i;
496
497 spin_lock_bh(&efx->stats_lock);
498
499 /* Get NIC statistics */
500 data += efx->type->update_stats(efx, data, NULL);
501
502 /* Get software statistics */
503 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) {
504 stat = &efx_sw_stat_desc[i];
505 switch (stat->source) {
506 case EFX_ETHTOOL_STAT_SOURCE_nic:
507 data[i] = stat->get_stat((void *)efx + stat->offset);
508 break;
509 case EFX_ETHTOOL_STAT_SOURCE_channel:
510 data[i] = 0;
511 efx_for_each_channel(channel, efx)
512 data[i] += stat->get_stat((void *)channel +
513 stat->offset);
514 break;
515 case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
516 data[i] = 0;
517 efx_for_each_channel(channel, efx) {
518 efx_for_each_channel_tx_queue(tx_queue, channel)
519 data[i] +=
520 stat->get_stat((void *)tx_queue
521 + stat->offset);
522 }
523 break;
524 }
525 }
526 data += EFX_ETHTOOL_SW_STAT_COUNT;
527
528 spin_unlock_bh(&efx->stats_lock);
529
530 efx_for_each_channel(channel, efx) {
531 if (efx_channel_has_tx_queues(channel)) {
532 *data = 0;
533 efx_for_each_channel_tx_queue(tx_queue, channel) {
534 *data += tx_queue->tx_packets;
535 }
536 data++;
537 }
538 }
539 efx_for_each_channel(channel, efx) {
540 if (efx_channel_has_rx_queue(channel)) {
541 *data = 0;
542 efx_for_each_channel_rx_queue(rx_queue, channel) {
543 *data += rx_queue->rx_packets;
544 }
545 data++;
546 }
547 }
548 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
549 int xdp;
550
551 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
552 data[0] = efx->xdp_tx_queues[xdp]->tx_packets;
553 data++;
554 }
555 }
556
557 efx_ptp_update_stats(efx, data);
558 }
559
560 /* This must be called with rtnl_lock held. */
efx_ethtool_get_link_ksettings(struct net_device * net_dev,struct ethtool_link_ksettings * cmd)561 int efx_ethtool_get_link_ksettings(struct net_device *net_dev,
562 struct ethtool_link_ksettings *cmd)
563 {
564 struct efx_nic *efx = netdev_priv(net_dev);
565 struct efx_link_state *link_state = &efx->link_state;
566 u32 supported;
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_convert_link_mode_to_legacy_u32(&supported,
574 cmd->link_modes.supported);
575
576 supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
577
578 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
579 supported);
580
581 if (LOOPBACK_INTERNAL(efx)) {
582 cmd->base.speed = link_state->speed;
583 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
584 }
585
586 return 0;
587 }
588
589 /* This must be called with rtnl_lock held. */
efx_ethtool_set_link_ksettings(struct net_device * net_dev,const struct ethtool_link_ksettings * cmd)590 int efx_ethtool_set_link_ksettings(struct net_device *net_dev,
591 const struct ethtool_link_ksettings *cmd)
592 {
593 struct efx_nic *efx = netdev_priv(net_dev);
594 int rc;
595
596 /* GMAC does not support 1000Mbps HD */
597 if ((cmd->base.speed == SPEED_1000) &&
598 (cmd->base.duplex != DUPLEX_FULL)) {
599 netif_dbg(efx, drv, efx->net_dev,
600 "rejecting unsupported 1000Mbps HD setting\n");
601 return -EINVAL;
602 }
603
604 mutex_lock(&efx->mac_lock);
605 rc = efx_mcdi_phy_set_link_ksettings(efx, cmd);
606 mutex_unlock(&efx->mac_lock);
607 return rc;
608 }
609
efx_ethtool_get_fecparam(struct net_device * net_dev,struct ethtool_fecparam * fecparam)610 int efx_ethtool_get_fecparam(struct net_device *net_dev,
611 struct ethtool_fecparam *fecparam)
612 {
613 struct efx_nic *efx = netdev_priv(net_dev);
614 int rc;
615
616 mutex_lock(&efx->mac_lock);
617 rc = efx_mcdi_phy_get_fecparam(efx, fecparam);
618 mutex_unlock(&efx->mac_lock);
619
620 return rc;
621 }
622
efx_ethtool_set_fecparam(struct net_device * net_dev,struct ethtool_fecparam * fecparam)623 int efx_ethtool_set_fecparam(struct net_device *net_dev,
624 struct ethtool_fecparam *fecparam)
625 {
626 struct efx_nic *efx = netdev_priv(net_dev);
627 int rc;
628
629 mutex_lock(&efx->mac_lock);
630 rc = efx_mcdi_phy_set_fecparam(efx, fecparam);
631 mutex_unlock(&efx->mac_lock);
632
633 return rc;
634 }
635
636 /* MAC address mask including only I/G bit */
637 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
638
639 #define IP4_ADDR_FULL_MASK ((__force __be32)~0)
640 #define IP_PROTO_FULL_MASK 0xFF
641 #define PORT_FULL_MASK ((__force __be16)~0)
642 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
643
ip6_fill_mask(__be32 * mask)644 static inline void ip6_fill_mask(__be32 *mask)
645 {
646 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
647 }
648
efx_ethtool_get_class_rule(struct efx_nic * efx,struct ethtool_rx_flow_spec * rule,u32 * rss_context)649 static int efx_ethtool_get_class_rule(struct efx_nic *efx,
650 struct ethtool_rx_flow_spec *rule,
651 u32 *rss_context)
652 {
653 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
654 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
655 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
656 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
657 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
658 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
659 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
660 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
661 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
662 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
663 struct efx_filter_spec spec;
664 int rc;
665
666 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
667 rule->location, &spec);
668 if (rc)
669 return rc;
670
671 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP)
672 rule->ring_cookie = RX_CLS_FLOW_DISC;
673 else
674 rule->ring_cookie = spec.dmaq_id;
675
676 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
677 spec.ether_type == htons(ETH_P_IP) &&
678 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
679 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
680 !(spec.match_flags &
681 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
682 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
683 EFX_FILTER_MATCH_IP_PROTO |
684 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
685 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
686 TCP_V4_FLOW : UDP_V4_FLOW);
687 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
688 ip_entry->ip4dst = spec.loc_host[0];
689 ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
690 }
691 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
692 ip_entry->ip4src = spec.rem_host[0];
693 ip_mask->ip4src = IP4_ADDR_FULL_MASK;
694 }
695 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
696 ip_entry->pdst = spec.loc_port;
697 ip_mask->pdst = PORT_FULL_MASK;
698 }
699 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
700 ip_entry->psrc = spec.rem_port;
701 ip_mask->psrc = PORT_FULL_MASK;
702 }
703 } else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
704 spec.ether_type == htons(ETH_P_IPV6) &&
705 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
706 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
707 !(spec.match_flags &
708 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
709 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
710 EFX_FILTER_MATCH_IP_PROTO |
711 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
712 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
713 TCP_V6_FLOW : UDP_V6_FLOW);
714 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
715 memcpy(ip6_entry->ip6dst, spec.loc_host,
716 sizeof(ip6_entry->ip6dst));
717 ip6_fill_mask(ip6_mask->ip6dst);
718 }
719 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
720 memcpy(ip6_entry->ip6src, spec.rem_host,
721 sizeof(ip6_entry->ip6src));
722 ip6_fill_mask(ip6_mask->ip6src);
723 }
724 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
725 ip6_entry->pdst = spec.loc_port;
726 ip6_mask->pdst = PORT_FULL_MASK;
727 }
728 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
729 ip6_entry->psrc = spec.rem_port;
730 ip6_mask->psrc = PORT_FULL_MASK;
731 }
732 } else if (!(spec.match_flags &
733 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG |
734 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE |
735 EFX_FILTER_MATCH_OUTER_VID))) {
736 rule->flow_type = ETHER_FLOW;
737 if (spec.match_flags &
738 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) {
739 ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
740 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC)
741 eth_broadcast_addr(mac_mask->h_dest);
742 else
743 ether_addr_copy(mac_mask->h_dest,
744 mac_addr_ig_mask);
745 }
746 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) {
747 ether_addr_copy(mac_entry->h_source, spec.rem_mac);
748 eth_broadcast_addr(mac_mask->h_source);
749 }
750 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) {
751 mac_entry->h_proto = spec.ether_type;
752 mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
753 }
754 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
755 spec.ether_type == htons(ETH_P_IP) &&
756 !(spec.match_flags &
757 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
758 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
759 EFX_FILTER_MATCH_IP_PROTO))) {
760 rule->flow_type = IPV4_USER_FLOW;
761 uip_entry->ip_ver = ETH_RX_NFC_IP4;
762 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
763 uip_mask->proto = IP_PROTO_FULL_MASK;
764 uip_entry->proto = spec.ip_proto;
765 }
766 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
767 uip_entry->ip4dst = spec.loc_host[0];
768 uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
769 }
770 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
771 uip_entry->ip4src = spec.rem_host[0];
772 uip_mask->ip4src = IP4_ADDR_FULL_MASK;
773 }
774 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
775 spec.ether_type == htons(ETH_P_IPV6) &&
776 !(spec.match_flags &
777 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
778 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
779 EFX_FILTER_MATCH_IP_PROTO))) {
780 rule->flow_type = IPV6_USER_FLOW;
781 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
782 uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
783 uip6_entry->l4_proto = spec.ip_proto;
784 }
785 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
786 memcpy(uip6_entry->ip6dst, spec.loc_host,
787 sizeof(uip6_entry->ip6dst));
788 ip6_fill_mask(uip6_mask->ip6dst);
789 }
790 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
791 memcpy(uip6_entry->ip6src, spec.rem_host,
792 sizeof(uip6_entry->ip6src));
793 ip6_fill_mask(uip6_mask->ip6src);
794 }
795 } else {
796 /* The above should handle all filters that we insert */
797 WARN_ON(1);
798 return -EINVAL;
799 }
800
801 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) {
802 rule->flow_type |= FLOW_EXT;
803 rule->h_ext.vlan_tci = spec.outer_vid;
804 rule->m_ext.vlan_tci = htons(0xfff);
805 }
806
807 if (spec.flags & EFX_FILTER_FLAG_RX_RSS) {
808 rule->flow_type |= FLOW_RSS;
809 *rss_context = spec.rss_context;
810 }
811
812 return rc;
813 }
814
efx_ethtool_get_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * info,u32 * rule_locs)815 int efx_ethtool_get_rxnfc(struct net_device *net_dev,
816 struct ethtool_rxnfc *info, u32 *rule_locs)
817 {
818 struct efx_nic *efx = netdev_priv(net_dev);
819 u32 rss_context = 0;
820 s32 rc = 0;
821
822 switch (info->cmd) {
823 case ETHTOOL_GRXRINGS:
824 info->data = efx->n_rx_channels;
825 return 0;
826
827 case ETHTOOL_GRXFH: {
828 struct efx_rss_context *ctx = &efx->rss_context;
829 __u64 data;
830
831 mutex_lock(&efx->rss_lock);
832 if (info->flow_type & FLOW_RSS && info->rss_context) {
833 ctx = efx_find_rss_context_entry(efx, info->rss_context);
834 if (!ctx) {
835 rc = -ENOENT;
836 goto out_unlock;
837 }
838 }
839
840 data = 0;
841 if (!efx_rss_active(ctx)) /* No RSS */
842 goto out_setdata_unlock;
843
844 switch (info->flow_type & ~FLOW_RSS) {
845 case UDP_V4_FLOW:
846 case UDP_V6_FLOW:
847 if (ctx->rx_hash_udp_4tuple)
848 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
849 RXH_IP_SRC | RXH_IP_DST);
850 else
851 data = RXH_IP_SRC | RXH_IP_DST;
852 break;
853 case TCP_V4_FLOW:
854 case TCP_V6_FLOW:
855 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
856 RXH_IP_SRC | RXH_IP_DST);
857 break;
858 case SCTP_V4_FLOW:
859 case SCTP_V6_FLOW:
860 case AH_ESP_V4_FLOW:
861 case AH_ESP_V6_FLOW:
862 case IPV4_FLOW:
863 case IPV6_FLOW:
864 data = RXH_IP_SRC | RXH_IP_DST;
865 break;
866 default:
867 break;
868 }
869 out_setdata_unlock:
870 info->data = data;
871 out_unlock:
872 mutex_unlock(&efx->rss_lock);
873 return rc;
874 }
875
876 case ETHTOOL_GRXCLSRLCNT:
877 info->data = efx_filter_get_rx_id_limit(efx);
878 if (info->data == 0)
879 return -EOPNOTSUPP;
880 info->data |= RX_CLS_LOC_SPECIAL;
881 info->rule_cnt =
882 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
883 return 0;
884
885 case ETHTOOL_GRXCLSRULE:
886 if (efx_filter_get_rx_id_limit(efx) == 0)
887 return -EOPNOTSUPP;
888 rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context);
889 if (rc < 0)
890 return rc;
891 if (info->fs.flow_type & FLOW_RSS)
892 info->rss_context = rss_context;
893 return 0;
894
895 case ETHTOOL_GRXCLSRLALL:
896 info->data = efx_filter_get_rx_id_limit(efx);
897 if (info->data == 0)
898 return -EOPNOTSUPP;
899 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
900 rule_locs, info->rule_cnt);
901 if (rc < 0)
902 return rc;
903 info->rule_cnt = rc;
904 return 0;
905
906 default:
907 return -EOPNOTSUPP;
908 }
909 }
910
ip6_mask_is_full(__be32 mask[4])911 static inline bool ip6_mask_is_full(__be32 mask[4])
912 {
913 return !~(mask[0] & mask[1] & mask[2] & mask[3]);
914 }
915
ip6_mask_is_empty(__be32 mask[4])916 static inline bool ip6_mask_is_empty(__be32 mask[4])
917 {
918 return !(mask[0] | mask[1] | mask[2] | mask[3]);
919 }
920
efx_ethtool_set_class_rule(struct efx_nic * efx,struct ethtool_rx_flow_spec * rule,u32 rss_context)921 static int efx_ethtool_set_class_rule(struct efx_nic *efx,
922 struct ethtool_rx_flow_spec *rule,
923 u32 rss_context)
924 {
925 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
926 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
927 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
928 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
929 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
930 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
931 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
932 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
933 u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS);
934 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
935 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
936 enum efx_filter_flags flags = 0;
937 struct efx_filter_spec spec;
938 int rc;
939
940 /* Check that user wants us to choose the location */
941 if (rule->location != RX_CLS_LOC_ANY)
942 return -EINVAL;
943
944 /* Range-check ring_cookie */
945 if (rule->ring_cookie >= efx->n_rx_channels &&
946 rule->ring_cookie != RX_CLS_FLOW_DISC)
947 return -EINVAL;
948
949 /* Check for unsupported extensions */
950 if ((rule->flow_type & FLOW_EXT) &&
951 (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
952 rule->m_ext.data[1]))
953 return -EINVAL;
954
955 if (efx->rx_scatter)
956 flags |= EFX_FILTER_FLAG_RX_SCATTER;
957 if (rule->flow_type & FLOW_RSS)
958 flags |= EFX_FILTER_FLAG_RX_RSS;
959
960 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags,
961 (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
962 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
963
964 if (rule->flow_type & FLOW_RSS)
965 spec.rss_context = rss_context;
966
967 switch (flow_type) {
968 case TCP_V4_FLOW:
969 case UDP_V4_FLOW:
970 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
971 EFX_FILTER_MATCH_IP_PROTO);
972 spec.ether_type = htons(ETH_P_IP);
973 spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP
974 : IPPROTO_UDP;
975 if (ip_mask->ip4dst) {
976 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
977 return -EINVAL;
978 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
979 spec.loc_host[0] = ip_entry->ip4dst;
980 }
981 if (ip_mask->ip4src) {
982 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
983 return -EINVAL;
984 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
985 spec.rem_host[0] = ip_entry->ip4src;
986 }
987 if (ip_mask->pdst) {
988 if (ip_mask->pdst != PORT_FULL_MASK)
989 return -EINVAL;
990 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
991 spec.loc_port = ip_entry->pdst;
992 }
993 if (ip_mask->psrc) {
994 if (ip_mask->psrc != PORT_FULL_MASK)
995 return -EINVAL;
996 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
997 spec.rem_port = ip_entry->psrc;
998 }
999 if (ip_mask->tos)
1000 return -EINVAL;
1001 break;
1002
1003 case TCP_V6_FLOW:
1004 case UDP_V6_FLOW:
1005 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
1006 EFX_FILTER_MATCH_IP_PROTO);
1007 spec.ether_type = htons(ETH_P_IPV6);
1008 spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP
1009 : IPPROTO_UDP;
1010 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1011 if (!ip6_mask_is_full(ip6_mask->ip6dst))
1012 return -EINVAL;
1013 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1014 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1015 }
1016 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1017 if (!ip6_mask_is_full(ip6_mask->ip6src))
1018 return -EINVAL;
1019 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1020 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1021 }
1022 if (ip6_mask->pdst) {
1023 if (ip6_mask->pdst != PORT_FULL_MASK)
1024 return -EINVAL;
1025 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
1026 spec.loc_port = ip6_entry->pdst;
1027 }
1028 if (ip6_mask->psrc) {
1029 if (ip6_mask->psrc != PORT_FULL_MASK)
1030 return -EINVAL;
1031 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
1032 spec.rem_port = ip6_entry->psrc;
1033 }
1034 if (ip6_mask->tclass)
1035 return -EINVAL;
1036 break;
1037
1038 case IPV4_USER_FLOW:
1039 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1040 uip_entry->ip_ver != ETH_RX_NFC_IP4)
1041 return -EINVAL;
1042 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1043 spec.ether_type = htons(ETH_P_IP);
1044 if (uip_mask->ip4dst) {
1045 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1046 return -EINVAL;
1047 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1048 spec.loc_host[0] = uip_entry->ip4dst;
1049 }
1050 if (uip_mask->ip4src) {
1051 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1052 return -EINVAL;
1053 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1054 spec.rem_host[0] = uip_entry->ip4src;
1055 }
1056 if (uip_mask->proto) {
1057 if (uip_mask->proto != IP_PROTO_FULL_MASK)
1058 return -EINVAL;
1059 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1060 spec.ip_proto = uip_entry->proto;
1061 }
1062 break;
1063
1064 case IPV6_USER_FLOW:
1065 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1066 return -EINVAL;
1067 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1068 spec.ether_type = htons(ETH_P_IPV6);
1069 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1070 if (!ip6_mask_is_full(uip6_mask->ip6dst))
1071 return -EINVAL;
1072 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1073 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1074 }
1075 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1076 if (!ip6_mask_is_full(uip6_mask->ip6src))
1077 return -EINVAL;
1078 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1079 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1080 }
1081 if (uip6_mask->l4_proto) {
1082 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1083 return -EINVAL;
1084 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1085 spec.ip_proto = uip6_entry->l4_proto;
1086 }
1087 break;
1088
1089 case ETHER_FLOW:
1090 if (!is_zero_ether_addr(mac_mask->h_dest)) {
1091 if (ether_addr_equal(mac_mask->h_dest,
1092 mac_addr_ig_mask))
1093 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
1094 else if (is_broadcast_ether_addr(mac_mask->h_dest))
1095 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;
1096 else
1097 return -EINVAL;
1098 ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1099 }
1100 if (!is_zero_ether_addr(mac_mask->h_source)) {
1101 if (!is_broadcast_ether_addr(mac_mask->h_source))
1102 return -EINVAL;
1103 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;
1104 ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1105 }
1106 if (mac_mask->h_proto) {
1107 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1108 return -EINVAL;
1109 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;
1110 spec.ether_type = mac_entry->h_proto;
1111 }
1112 break;
1113
1114 default:
1115 return -EINVAL;
1116 }
1117
1118 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1119 if (rule->m_ext.vlan_tci != htons(0xfff))
1120 return -EINVAL;
1121 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;
1122 spec.outer_vid = rule->h_ext.vlan_tci;
1123 }
1124
1125 rc = efx_filter_insert_filter(efx, &spec, true);
1126 if (rc < 0)
1127 return rc;
1128
1129 rule->location = rc;
1130 return 0;
1131 }
1132
efx_ethtool_set_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * info)1133 int efx_ethtool_set_rxnfc(struct net_device *net_dev,
1134 struct ethtool_rxnfc *info)
1135 {
1136 struct efx_nic *efx = netdev_priv(net_dev);
1137
1138 if (efx_filter_get_rx_id_limit(efx) == 0)
1139 return -EOPNOTSUPP;
1140
1141 switch (info->cmd) {
1142 case ETHTOOL_SRXCLSRLINS:
1143 return efx_ethtool_set_class_rule(efx, &info->fs,
1144 info->rss_context);
1145
1146 case ETHTOOL_SRXCLSRLDEL:
1147 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
1148 info->fs.location);
1149
1150 default:
1151 return -EOPNOTSUPP;
1152 }
1153 }
1154
efx_ethtool_get_rxfh_indir_size(struct net_device * net_dev)1155 u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1156 {
1157 struct efx_nic *efx = netdev_priv(net_dev);
1158
1159 if (efx->n_rx_channels == 1)
1160 return 0;
1161 return ARRAY_SIZE(efx->rss_context.rx_indir_table);
1162 }
1163
efx_ethtool_get_rxfh_key_size(struct net_device * net_dev)1164 u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev)
1165 {
1166 struct efx_nic *efx = netdev_priv(net_dev);
1167
1168 return efx->type->rx_hash_key_size;
1169 }
1170
efx_ethtool_get_rxfh(struct net_device * net_dev,u32 * indir,u8 * key,u8 * hfunc)1171 int efx_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key,
1172 u8 *hfunc)
1173 {
1174 struct efx_nic *efx = netdev_priv(net_dev);
1175 int rc;
1176
1177 rc = efx->type->rx_pull_rss_config(efx);
1178 if (rc)
1179 return rc;
1180
1181 if (hfunc)
1182 *hfunc = ETH_RSS_HASH_TOP;
1183 if (indir)
1184 memcpy(indir, efx->rss_context.rx_indir_table,
1185 sizeof(efx->rss_context.rx_indir_table));
1186 if (key)
1187 memcpy(key, efx->rss_context.rx_hash_key,
1188 efx->type->rx_hash_key_size);
1189 return 0;
1190 }
1191
efx_ethtool_set_rxfh(struct net_device * net_dev,const u32 * indir,const u8 * key,const u8 hfunc)1192 int efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir,
1193 const u8 *key, const u8 hfunc)
1194 {
1195 struct efx_nic *efx = netdev_priv(net_dev);
1196
1197 /* Hash function is Toeplitz, cannot be changed */
1198 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
1199 return -EOPNOTSUPP;
1200 if (!indir && !key)
1201 return 0;
1202
1203 if (!key)
1204 key = efx->rss_context.rx_hash_key;
1205 if (!indir)
1206 indir = efx->rss_context.rx_indir_table;
1207
1208 return efx->type->rx_push_rss_config(efx, true, indir, key);
1209 }
1210
efx_ethtool_get_rxfh_context(struct net_device * net_dev,u32 * indir,u8 * key,u8 * hfunc,u32 rss_context)1211 int efx_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir,
1212 u8 *key, u8 *hfunc, u32 rss_context)
1213 {
1214 struct efx_nic *efx = netdev_priv(net_dev);
1215 struct efx_rss_context *ctx;
1216 int rc = 0;
1217
1218 if (!efx->type->rx_pull_rss_context_config)
1219 return -EOPNOTSUPP;
1220
1221 mutex_lock(&efx->rss_lock);
1222 ctx = efx_find_rss_context_entry(efx, rss_context);
1223 if (!ctx) {
1224 rc = -ENOENT;
1225 goto out_unlock;
1226 }
1227 rc = efx->type->rx_pull_rss_context_config(efx, ctx);
1228 if (rc)
1229 goto out_unlock;
1230
1231 if (hfunc)
1232 *hfunc = ETH_RSS_HASH_TOP;
1233 if (indir)
1234 memcpy(indir, ctx->rx_indir_table, sizeof(ctx->rx_indir_table));
1235 if (key)
1236 memcpy(key, ctx->rx_hash_key, efx->type->rx_hash_key_size);
1237 out_unlock:
1238 mutex_unlock(&efx->rss_lock);
1239 return rc;
1240 }
1241
efx_ethtool_set_rxfh_context(struct net_device * net_dev,const u32 * indir,const u8 * key,const u8 hfunc,u32 * rss_context,bool delete)1242 int efx_ethtool_set_rxfh_context(struct net_device *net_dev,
1243 const u32 *indir, const u8 *key,
1244 const u8 hfunc, u32 *rss_context,
1245 bool delete)
1246 {
1247 struct efx_nic *efx = netdev_priv(net_dev);
1248 struct efx_rss_context *ctx;
1249 bool allocated = false;
1250 int rc;
1251
1252 if (!efx->type->rx_push_rss_context_config)
1253 return -EOPNOTSUPP;
1254 /* Hash function is Toeplitz, cannot be changed */
1255 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
1256 return -EOPNOTSUPP;
1257
1258 mutex_lock(&efx->rss_lock);
1259
1260 if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) {
1261 if (delete) {
1262 /* alloc + delete == Nothing to do */
1263 rc = -EINVAL;
1264 goto out_unlock;
1265 }
1266 ctx = efx_alloc_rss_context_entry(efx);
1267 if (!ctx) {
1268 rc = -ENOMEM;
1269 goto out_unlock;
1270 }
1271 ctx->context_id = EFX_MCDI_RSS_CONTEXT_INVALID;
1272 /* Initialise indir table and key to defaults */
1273 efx_set_default_rx_indir_table(efx, ctx);
1274 netdev_rss_key_fill(ctx->rx_hash_key, sizeof(ctx->rx_hash_key));
1275 allocated = true;
1276 } else {
1277 ctx = efx_find_rss_context_entry(efx, *rss_context);
1278 if (!ctx) {
1279 rc = -ENOENT;
1280 goto out_unlock;
1281 }
1282 }
1283
1284 if (delete) {
1285 /* delete this context */
1286 rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL);
1287 if (!rc)
1288 efx_free_rss_context_entry(ctx);
1289 goto out_unlock;
1290 }
1291
1292 if (!key)
1293 key = ctx->rx_hash_key;
1294 if (!indir)
1295 indir = ctx->rx_indir_table;
1296
1297 rc = efx->type->rx_push_rss_context_config(efx, ctx, indir, key);
1298 if (rc && allocated)
1299 efx_free_rss_context_entry(ctx);
1300 else
1301 *rss_context = ctx->user_id;
1302 out_unlock:
1303 mutex_unlock(&efx->rss_lock);
1304 return rc;
1305 }
1306
efx_ethtool_reset(struct net_device * net_dev,u32 * flags)1307 int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
1308 {
1309 struct efx_nic *efx = netdev_priv(net_dev);
1310 int rc;
1311
1312 rc = efx->type->map_reset_flags(flags);
1313 if (rc < 0)
1314 return rc;
1315
1316 return efx_reset(efx, rc);
1317 }
1318
efx_ethtool_get_module_eeprom(struct net_device * net_dev,struct ethtool_eeprom * ee,u8 * data)1319 int efx_ethtool_get_module_eeprom(struct net_device *net_dev,
1320 struct ethtool_eeprom *ee,
1321 u8 *data)
1322 {
1323 struct efx_nic *efx = netdev_priv(net_dev);
1324 int ret;
1325
1326 mutex_lock(&efx->mac_lock);
1327 ret = efx_mcdi_phy_get_module_eeprom(efx, ee, data);
1328 mutex_unlock(&efx->mac_lock);
1329
1330 return ret;
1331 }
1332
efx_ethtool_get_module_info(struct net_device * net_dev,struct ethtool_modinfo * modinfo)1333 int efx_ethtool_get_module_info(struct net_device *net_dev,
1334 struct ethtool_modinfo *modinfo)
1335 {
1336 struct efx_nic *efx = netdev_priv(net_dev);
1337 int ret;
1338
1339 mutex_lock(&efx->mac_lock);
1340 ret = efx_mcdi_phy_get_module_info(efx, modinfo);
1341 mutex_unlock(&efx->mac_lock);
1342
1343 return ret;
1344 }
1345
