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_ip_hdr_chksum_err),
79 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
80 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_ip_hdr_chksum_err),
81 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_tcp_udp_chksum_err),
82 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_ip_hdr_chksum_err),
83 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_tcp_udp_chksum_err),
84 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_eth_crc_err),
85 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
86 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_overlength),
87 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),
88 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
89 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_drops),
90 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_bad_drops),
91 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_tx),
92 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_redirect),
93 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mport_bad),
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 = efx_netdev_priv(net_dev);
107
108 strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
109 efx_mcdi_print_fwver(efx, info->fw_version,
110 sizeof(info->fw_version));
111 strscpy(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 = 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 = 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 = 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_net_active(efx->state)) {
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 = 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 = 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)
407 continue;
408
409 ethtool_sprintf(strings, "tx-%u.tx_packets",
410 channel->tx_queue[0].queue /
411 EFX_MAX_TXQ_PER_CHANNEL);
412 }
413 }
414 efx_for_each_channel(channel, efx) {
415 if (efx_channel_has_rx_queue(channel)) {
416 n_stats++;
417 if (!strings)
418 continue;
419
420 ethtool_sprintf(strings, "rx-%d.rx_packets",
421 channel->channel);
422 }
423 }
424 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
425 unsigned short xdp;
426
427 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
428 n_stats++;
429 if (!strings)
430 continue;
431
432 ethtool_sprintf(strings, "tx-xdp-cpu-%hu.tx_packets",
433 xdp);
434 }
435 }
436
437 return n_stats;
438 }
439
efx_ethtool_get_sset_count(struct net_device * net_dev,int string_set)440 int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set)
441 {
442 struct efx_nic *efx = efx_netdev_priv(net_dev);
443
444 switch (string_set) {
445 case ETH_SS_STATS:
446 return efx->type->describe_stats(efx, NULL) +
447 EFX_ETHTOOL_SW_STAT_COUNT +
448 efx_describe_per_queue_stats(efx, NULL) +
449 efx_ptp_describe_stats(efx, NULL);
450 case ETH_SS_TEST:
451 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
452 default:
453 return -EINVAL;
454 }
455 }
456
efx_ethtool_get_strings(struct net_device * net_dev,u32 string_set,u8 * strings)457 void efx_ethtool_get_strings(struct net_device *net_dev,
458 u32 string_set, u8 *strings)
459 {
460 struct efx_nic *efx = efx_netdev_priv(net_dev);
461 int i;
462
463 switch (string_set) {
464 case ETH_SS_STATS:
465 efx->type->describe_stats(efx, &strings);
466 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++)
467 ethtool_puts(&strings, efx_sw_stat_desc[i].name);
468 efx_describe_per_queue_stats(efx, &strings);
469 efx_ptp_describe_stats(efx, &strings);
470 break;
471 case ETH_SS_TEST:
472 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL);
473 break;
474 default:
475 /* No other string sets */
476 break;
477 }
478 }
479
efx_ethtool_get_stats(struct net_device * net_dev,struct ethtool_stats * stats,u64 * data)480 void efx_ethtool_get_stats(struct net_device *net_dev,
481 struct ethtool_stats *stats,
482 u64 *data)
483 {
484 struct efx_nic *efx = efx_netdev_priv(net_dev);
485 const struct efx_sw_stat_desc *stat;
486 struct efx_channel *channel;
487 struct efx_tx_queue *tx_queue;
488 struct efx_rx_queue *rx_queue;
489 int i;
490
491 spin_lock_bh(&efx->stats_lock);
492
493 /* Get NIC statistics */
494 data += efx->type->update_stats(efx, data, NULL);
495
496 /* Get software statistics */
497 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) {
498 stat = &efx_sw_stat_desc[i];
499 switch (stat->source) {
500 case EFX_ETHTOOL_STAT_SOURCE_nic:
501 data[i] = stat->get_stat((void *)efx + stat->offset);
502 break;
503 case EFX_ETHTOOL_STAT_SOURCE_channel:
504 data[i] = 0;
505 efx_for_each_channel(channel, efx)
506 data[i] += stat->get_stat((void *)channel +
507 stat->offset);
508 break;
509 case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
510 data[i] = 0;
511 efx_for_each_channel(channel, efx) {
512 efx_for_each_channel_tx_queue(tx_queue, channel)
513 data[i] +=
514 stat->get_stat((void *)tx_queue
515 + stat->offset);
516 }
517 break;
518 }
519 }
520 data += EFX_ETHTOOL_SW_STAT_COUNT;
521
522 spin_unlock_bh(&efx->stats_lock);
523
524 efx_for_each_channel(channel, efx) {
525 if (efx_channel_has_tx_queues(channel)) {
526 *data = 0;
527 efx_for_each_channel_tx_queue(tx_queue, channel) {
528 *data += tx_queue->tx_packets;
529 }
530 data++;
531 }
532 }
533 efx_for_each_channel(channel, efx) {
534 if (efx_channel_has_rx_queue(channel)) {
535 *data = 0;
536 efx_for_each_channel_rx_queue(rx_queue, channel) {
537 *data += rx_queue->rx_packets;
538 }
539 data++;
540 }
541 }
542 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {
543 int xdp;
544
545 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {
546 data[0] = efx->xdp_tx_queues[xdp]->tx_packets;
547 data++;
548 }
549 }
550
551 efx_ptp_update_stats(efx, data);
552 }
553
554 /* This must be called with rtnl_lock held. */
efx_ethtool_get_link_ksettings(struct net_device * net_dev,struct ethtool_link_ksettings * cmd)555 int efx_ethtool_get_link_ksettings(struct net_device *net_dev,
556 struct ethtool_link_ksettings *cmd)
557 {
558 struct efx_nic *efx = efx_netdev_priv(net_dev);
559 struct efx_link_state *link_state = &efx->link_state;
560
561 mutex_lock(&efx->mac_lock);
562 efx_mcdi_phy_get_link_ksettings(efx, cmd);
563 mutex_unlock(&efx->mac_lock);
564
565 /* Both MACs support pause frames (bidirectional and respond-only) */
566 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
567 ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
568
569 if (LOOPBACK_INTERNAL(efx)) {
570 cmd->base.speed = link_state->speed;
571 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
572 }
573
574 return 0;
575 }
576
577 /* This must be called with rtnl_lock held. */
efx_ethtool_set_link_ksettings(struct net_device * net_dev,const struct ethtool_link_ksettings * cmd)578 int efx_ethtool_set_link_ksettings(struct net_device *net_dev,
579 const struct ethtool_link_ksettings *cmd)
580 {
581 struct efx_nic *efx = efx_netdev_priv(net_dev);
582 int rc;
583
584 /* GMAC does not support 1000Mbps HD */
585 if ((cmd->base.speed == SPEED_1000) &&
586 (cmd->base.duplex != DUPLEX_FULL)) {
587 netif_dbg(efx, drv, efx->net_dev,
588 "rejecting unsupported 1000Mbps HD setting\n");
589 return -EINVAL;
590 }
591
592 mutex_lock(&efx->mac_lock);
593 rc = efx_mcdi_phy_set_link_ksettings(efx, cmd);
594 mutex_unlock(&efx->mac_lock);
595 return rc;
596 }
597
efx_ethtool_get_fecparam(struct net_device * net_dev,struct ethtool_fecparam * fecparam)598 int efx_ethtool_get_fecparam(struct net_device *net_dev,
599 struct ethtool_fecparam *fecparam)
600 {
601 struct efx_nic *efx = efx_netdev_priv(net_dev);
602 int rc;
603
604 mutex_lock(&efx->mac_lock);
605 rc = efx_mcdi_phy_get_fecparam(efx, fecparam);
606 mutex_unlock(&efx->mac_lock);
607
608 return rc;
609 }
610
efx_ethtool_set_fecparam(struct net_device * net_dev,struct ethtool_fecparam * fecparam)611 int efx_ethtool_set_fecparam(struct net_device *net_dev,
612 struct ethtool_fecparam *fecparam)
613 {
614 struct efx_nic *efx = efx_netdev_priv(net_dev);
615 int rc;
616
617 mutex_lock(&efx->mac_lock);
618 rc = efx_mcdi_phy_set_fecparam(efx, fecparam);
619 mutex_unlock(&efx->mac_lock);
620
621 return rc;
622 }
623
624 /* MAC address mask including only I/G bit */
625 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
626
627 #define IP4_ADDR_FULL_MASK ((__force __be32)~0)
628 #define IP_PROTO_FULL_MASK 0xFF
629 #define PORT_FULL_MASK ((__force __be16)~0)
630 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
631
ip6_fill_mask(__be32 * mask)632 static inline void ip6_fill_mask(__be32 *mask)
633 {
634 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
635 }
636
efx_ethtool_get_class_rule(struct efx_nic * efx,struct ethtool_rx_flow_spec * rule,u32 * rss_context)637 static int efx_ethtool_get_class_rule(struct efx_nic *efx,
638 struct ethtool_rx_flow_spec *rule,
639 u32 *rss_context)
640 {
641 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
642 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
643 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
644 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
645 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
646 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
647 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
648 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
649 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
650 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
651 struct efx_filter_spec spec;
652 int rc;
653
654 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
655 rule->location, &spec);
656 if (rc)
657 return rc;
658
659 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP)
660 rule->ring_cookie = RX_CLS_FLOW_DISC;
661 else
662 rule->ring_cookie = spec.dmaq_id;
663
664 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
665 spec.ether_type == htons(ETH_P_IP) &&
666 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
667 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
668 !(spec.match_flags &
669 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
670 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
671 EFX_FILTER_MATCH_IP_PROTO |
672 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
673 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
674 TCP_V4_FLOW : UDP_V4_FLOW);
675 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
676 ip_entry->ip4dst = spec.loc_host[0];
677 ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
678 }
679 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
680 ip_entry->ip4src = spec.rem_host[0];
681 ip_mask->ip4src = IP4_ADDR_FULL_MASK;
682 }
683 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
684 ip_entry->pdst = spec.loc_port;
685 ip_mask->pdst = PORT_FULL_MASK;
686 }
687 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
688 ip_entry->psrc = spec.rem_port;
689 ip_mask->psrc = PORT_FULL_MASK;
690 }
691 } else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
692 spec.ether_type == htons(ETH_P_IPV6) &&
693 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
694 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
695 !(spec.match_flags &
696 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
697 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
698 EFX_FILTER_MATCH_IP_PROTO |
699 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
700 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
701 TCP_V6_FLOW : UDP_V6_FLOW);
702 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
703 memcpy(ip6_entry->ip6dst, spec.loc_host,
704 sizeof(ip6_entry->ip6dst));
705 ip6_fill_mask(ip6_mask->ip6dst);
706 }
707 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
708 memcpy(ip6_entry->ip6src, spec.rem_host,
709 sizeof(ip6_entry->ip6src));
710 ip6_fill_mask(ip6_mask->ip6src);
711 }
712 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
713 ip6_entry->pdst = spec.loc_port;
714 ip6_mask->pdst = PORT_FULL_MASK;
715 }
716 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
717 ip6_entry->psrc = spec.rem_port;
718 ip6_mask->psrc = PORT_FULL_MASK;
719 }
720 } else if (!(spec.match_flags &
721 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG |
722 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE |
723 EFX_FILTER_MATCH_OUTER_VID))) {
724 rule->flow_type = ETHER_FLOW;
725 if (spec.match_flags &
726 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) {
727 ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
728 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC)
729 eth_broadcast_addr(mac_mask->h_dest);
730 else
731 ether_addr_copy(mac_mask->h_dest,
732 mac_addr_ig_mask);
733 }
734 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) {
735 ether_addr_copy(mac_entry->h_source, spec.rem_mac);
736 eth_broadcast_addr(mac_mask->h_source);
737 }
738 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) {
739 mac_entry->h_proto = spec.ether_type;
740 mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
741 }
742 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
743 spec.ether_type == htons(ETH_P_IP) &&
744 !(spec.match_flags &
745 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
746 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
747 EFX_FILTER_MATCH_IP_PROTO))) {
748 rule->flow_type = IPV4_USER_FLOW;
749 uip_entry->ip_ver = ETH_RX_NFC_IP4;
750 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
751 uip_mask->proto = IP_PROTO_FULL_MASK;
752 uip_entry->proto = spec.ip_proto;
753 }
754 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
755 uip_entry->ip4dst = spec.loc_host[0];
756 uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
757 }
758 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
759 uip_entry->ip4src = spec.rem_host[0];
760 uip_mask->ip4src = IP4_ADDR_FULL_MASK;
761 }
762 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&
763 spec.ether_type == htons(ETH_P_IPV6) &&
764 !(spec.match_flags &
765 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
766 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
767 EFX_FILTER_MATCH_IP_PROTO))) {
768 rule->flow_type = IPV6_USER_FLOW;
769 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {
770 uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
771 uip6_entry->l4_proto = spec.ip_proto;
772 }
773 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
774 memcpy(uip6_entry->ip6dst, spec.loc_host,
775 sizeof(uip6_entry->ip6dst));
776 ip6_fill_mask(uip6_mask->ip6dst);
777 }
778 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
779 memcpy(uip6_entry->ip6src, spec.rem_host,
780 sizeof(uip6_entry->ip6src));
781 ip6_fill_mask(uip6_mask->ip6src);
782 }
783 } else {
784 /* The above should handle all filters that we insert */
785 WARN_ON(1);
786 return -EINVAL;
787 }
788
789 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) {
790 rule->flow_type |= FLOW_EXT;
791 rule->h_ext.vlan_tci = spec.outer_vid;
792 rule->m_ext.vlan_tci = htons(0xfff);
793 }
794
795 if (spec.flags & EFX_FILTER_FLAG_RX_RSS) {
796 rule->flow_type |= FLOW_RSS;
797 *rss_context = spec.rss_context;
798 }
799
800 return rc;
801 }
802
efx_ethtool_get_rxfh_fields(struct net_device * net_dev,struct ethtool_rxfh_fields * info)803 int efx_ethtool_get_rxfh_fields(struct net_device *net_dev,
804 struct ethtool_rxfh_fields *info)
805 {
806 struct efx_nic *efx = efx_netdev_priv(net_dev);
807 struct efx_rss_context_priv *ctx;
808 __u64 data;
809 int rc = 0;
810
811 ctx = &efx->rss_context.priv;
812
813 if (info->rss_context) {
814 ctx = efx_find_rss_context_entry(efx, info->rss_context);
815 if (!ctx)
816 return -ENOENT;
817 }
818
819 data = 0;
820 if (!efx_rss_active(ctx)) /* No RSS */
821 goto out_setdata_unlock;
822
823 switch (info->flow_type) {
824 case UDP_V4_FLOW:
825 case UDP_V6_FLOW:
826 if (ctx->rx_hash_udp_4tuple)
827 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
828 RXH_IP_SRC | RXH_IP_DST);
829 else
830 data = RXH_IP_SRC | RXH_IP_DST;
831 break;
832 case TCP_V4_FLOW:
833 case TCP_V6_FLOW:
834 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
835 RXH_IP_SRC | RXH_IP_DST);
836 break;
837 case SCTP_V4_FLOW:
838 case SCTP_V6_FLOW:
839 case AH_ESP_V4_FLOW:
840 case AH_ESP_V6_FLOW:
841 case IPV4_FLOW:
842 case IPV6_FLOW:
843 data = RXH_IP_SRC | RXH_IP_DST;
844 break;
845 default:
846 break;
847 }
848 out_setdata_unlock:
849 info->data = data;
850 return rc;
851 }
852
efx_ethtool_get_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * info,u32 * rule_locs)853 int efx_ethtool_get_rxnfc(struct net_device *net_dev,
854 struct ethtool_rxnfc *info, u32 *rule_locs)
855 {
856 struct efx_nic *efx = efx_netdev_priv(net_dev);
857 u32 rss_context = 0;
858 s32 rc = 0;
859
860 switch (info->cmd) {
861 case ETHTOOL_GRXRINGS:
862 info->data = efx->n_rx_channels;
863 return 0;
864
865 case ETHTOOL_GRXCLSRLCNT:
866 info->data = efx_filter_get_rx_id_limit(efx);
867 if (info->data == 0)
868 return -EOPNOTSUPP;
869 info->data |= RX_CLS_LOC_SPECIAL;
870 info->rule_cnt =
871 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
872 return 0;
873
874 case ETHTOOL_GRXCLSRULE:
875 if (efx_filter_get_rx_id_limit(efx) == 0)
876 return -EOPNOTSUPP;
877 rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context);
878 if (rc < 0)
879 return rc;
880 if (info->fs.flow_type & FLOW_RSS)
881 info->rss_context = rss_context;
882 return 0;
883
884 case ETHTOOL_GRXCLSRLALL:
885 info->data = efx_filter_get_rx_id_limit(efx);
886 if (info->data == 0)
887 return -EOPNOTSUPP;
888 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
889 rule_locs, info->rule_cnt);
890 if (rc < 0)
891 return rc;
892 info->rule_cnt = rc;
893 return 0;
894
895 default:
896 return -EOPNOTSUPP;
897 }
898 }
899
ip6_mask_is_full(__be32 mask[4])900 static inline bool ip6_mask_is_full(__be32 mask[4])
901 {
902 return !~(mask[0] & mask[1] & mask[2] & mask[3]);
903 }
904
ip6_mask_is_empty(__be32 mask[4])905 static inline bool ip6_mask_is_empty(__be32 mask[4])
906 {
907 return !(mask[0] | mask[1] | mask[2] | mask[3]);
908 }
909
efx_ethtool_set_class_rule(struct efx_nic * efx,struct ethtool_rx_flow_spec * rule,u32 rss_context)910 static int efx_ethtool_set_class_rule(struct efx_nic *efx,
911 struct ethtool_rx_flow_spec *rule,
912 u32 rss_context)
913 {
914 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
915 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
916 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
917 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
918 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
919 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
920 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
921 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
922 u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS);
923 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
924 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
925 enum efx_filter_flags flags = 0;
926 struct efx_filter_spec spec;
927 int rc;
928
929 /* Check that user wants us to choose the location */
930 if (rule->location != RX_CLS_LOC_ANY)
931 return -EINVAL;
932
933 /* Range-check ring_cookie */
934 if (rule->ring_cookie >= efx->n_rx_channels &&
935 rule->ring_cookie != RX_CLS_FLOW_DISC)
936 return -EINVAL;
937
938 /* Check for unsupported extensions */
939 if ((rule->flow_type & FLOW_EXT) &&
940 (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
941 rule->m_ext.data[1]))
942 return -EINVAL;
943
944 if (efx->rx_scatter)
945 flags |= EFX_FILTER_FLAG_RX_SCATTER;
946 if (rule->flow_type & FLOW_RSS)
947 flags |= EFX_FILTER_FLAG_RX_RSS;
948
949 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags,
950 (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
951 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
952
953 if (rule->flow_type & FLOW_RSS)
954 spec.rss_context = rss_context;
955
956 switch (flow_type) {
957 case TCP_V4_FLOW:
958 case UDP_V4_FLOW:
959 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
960 EFX_FILTER_MATCH_IP_PROTO);
961 spec.ether_type = htons(ETH_P_IP);
962 spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP
963 : IPPROTO_UDP;
964 if (ip_mask->ip4dst) {
965 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
966 return -EINVAL;
967 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
968 spec.loc_host[0] = ip_entry->ip4dst;
969 }
970 if (ip_mask->ip4src) {
971 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
972 return -EINVAL;
973 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
974 spec.rem_host[0] = ip_entry->ip4src;
975 }
976 if (ip_mask->pdst) {
977 if (ip_mask->pdst != PORT_FULL_MASK)
978 return -EINVAL;
979 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
980 spec.loc_port = ip_entry->pdst;
981 }
982 if (ip_mask->psrc) {
983 if (ip_mask->psrc != PORT_FULL_MASK)
984 return -EINVAL;
985 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
986 spec.rem_port = ip_entry->psrc;
987 }
988 if (ip_mask->tos)
989 return -EINVAL;
990 break;
991
992 case TCP_V6_FLOW:
993 case UDP_V6_FLOW:
994 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
995 EFX_FILTER_MATCH_IP_PROTO);
996 spec.ether_type = htons(ETH_P_IPV6);
997 spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP
998 : IPPROTO_UDP;
999 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1000 if (!ip6_mask_is_full(ip6_mask->ip6dst))
1001 return -EINVAL;
1002 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1003 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1004 }
1005 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1006 if (!ip6_mask_is_full(ip6_mask->ip6src))
1007 return -EINVAL;
1008 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1009 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1010 }
1011 if (ip6_mask->pdst) {
1012 if (ip6_mask->pdst != PORT_FULL_MASK)
1013 return -EINVAL;
1014 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
1015 spec.loc_port = ip6_entry->pdst;
1016 }
1017 if (ip6_mask->psrc) {
1018 if (ip6_mask->psrc != PORT_FULL_MASK)
1019 return -EINVAL;
1020 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
1021 spec.rem_port = ip6_entry->psrc;
1022 }
1023 if (ip6_mask->tclass)
1024 return -EINVAL;
1025 break;
1026
1027 case IPV4_USER_FLOW:
1028 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1029 uip_entry->ip_ver != ETH_RX_NFC_IP4)
1030 return -EINVAL;
1031 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1032 spec.ether_type = htons(ETH_P_IP);
1033 if (uip_mask->ip4dst) {
1034 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1035 return -EINVAL;
1036 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1037 spec.loc_host[0] = uip_entry->ip4dst;
1038 }
1039 if (uip_mask->ip4src) {
1040 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1041 return -EINVAL;
1042 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1043 spec.rem_host[0] = uip_entry->ip4src;
1044 }
1045 if (uip_mask->proto) {
1046 if (uip_mask->proto != IP_PROTO_FULL_MASK)
1047 return -EINVAL;
1048 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1049 spec.ip_proto = uip_entry->proto;
1050 }
1051 break;
1052
1053 case IPV6_USER_FLOW:
1054 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1055 return -EINVAL;
1056 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1057 spec.ether_type = htons(ETH_P_IPV6);
1058 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1059 if (!ip6_mask_is_full(uip6_mask->ip6dst))
1060 return -EINVAL;
1061 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1062 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1063 }
1064 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1065 if (!ip6_mask_is_full(uip6_mask->ip6src))
1066 return -EINVAL;
1067 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1068 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1069 }
1070 if (uip6_mask->l4_proto) {
1071 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1072 return -EINVAL;
1073 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1074 spec.ip_proto = uip6_entry->l4_proto;
1075 }
1076 break;
1077
1078 case ETHER_FLOW:
1079 if (!is_zero_ether_addr(mac_mask->h_dest)) {
1080 if (ether_addr_equal(mac_mask->h_dest,
1081 mac_addr_ig_mask))
1082 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
1083 else if (is_broadcast_ether_addr(mac_mask->h_dest))
1084 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;
1085 else
1086 return -EINVAL;
1087 ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1088 }
1089 if (!is_zero_ether_addr(mac_mask->h_source)) {
1090 if (!is_broadcast_ether_addr(mac_mask->h_source))
1091 return -EINVAL;
1092 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;
1093 ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1094 }
1095 if (mac_mask->h_proto) {
1096 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1097 return -EINVAL;
1098 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;
1099 spec.ether_type = mac_entry->h_proto;
1100 }
1101 break;
1102
1103 default:
1104 return -EINVAL;
1105 }
1106
1107 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1108 if (rule->m_ext.vlan_tci != htons(0xfff))
1109 return -EINVAL;
1110 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;
1111 spec.outer_vid = rule->h_ext.vlan_tci;
1112 }
1113
1114 rc = efx_filter_insert_filter(efx, &spec, true);
1115 if (rc < 0)
1116 return rc;
1117
1118 rule->location = rc;
1119 return 0;
1120 }
1121
efx_ethtool_set_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * info)1122 int efx_ethtool_set_rxnfc(struct net_device *net_dev,
1123 struct ethtool_rxnfc *info)
1124 {
1125 struct efx_nic *efx = efx_netdev_priv(net_dev);
1126
1127 if (efx_filter_get_rx_id_limit(efx) == 0)
1128 return -EOPNOTSUPP;
1129
1130 switch (info->cmd) {
1131 case ETHTOOL_SRXCLSRLINS:
1132 return efx_ethtool_set_class_rule(efx, &info->fs,
1133 info->rss_context);
1134
1135 case ETHTOOL_SRXCLSRLDEL:
1136 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
1137 info->fs.location);
1138
1139 default:
1140 return -EOPNOTSUPP;
1141 }
1142 }
1143
efx_ethtool_get_rxfh_indir_size(struct net_device * net_dev)1144 u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1145 {
1146 struct efx_nic *efx = efx_netdev_priv(net_dev);
1147
1148 if (efx->n_rx_channels == 1)
1149 return 0;
1150 return ARRAY_SIZE(efx->rss_context.rx_indir_table);
1151 }
1152
efx_ethtool_get_rxfh_key_size(struct net_device * net_dev)1153 u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev)
1154 {
1155 struct efx_nic *efx = efx_netdev_priv(net_dev);
1156
1157 return efx->type->rx_hash_key_size;
1158 }
1159
efx_ethtool_get_rxfh(struct net_device * net_dev,struct ethtool_rxfh_param * rxfh)1160 int efx_ethtool_get_rxfh(struct net_device *net_dev,
1161 struct ethtool_rxfh_param *rxfh)
1162 {
1163 struct efx_nic *efx = efx_netdev_priv(net_dev);
1164 int rc;
1165
1166 if (rxfh->rss_context) /* core should never call us for these */
1167 return -EINVAL;
1168
1169 rc = efx->type->rx_pull_rss_config(efx);
1170 if (rc)
1171 return rc;
1172
1173 rxfh->hfunc = ETH_RSS_HASH_TOP;
1174 if (rxfh->indir)
1175 memcpy(rxfh->indir, efx->rss_context.rx_indir_table,
1176 sizeof(efx->rss_context.rx_indir_table));
1177 if (rxfh->key)
1178 memcpy(rxfh->key, efx->rss_context.rx_hash_key,
1179 efx->type->rx_hash_key_size);
1180 return 0;
1181 }
1182
efx_ethtool_modify_rxfh_context(struct net_device * net_dev,struct ethtool_rxfh_context * ctx,const struct ethtool_rxfh_param * rxfh,struct netlink_ext_ack * extack)1183 int efx_ethtool_modify_rxfh_context(struct net_device *net_dev,
1184 struct ethtool_rxfh_context *ctx,
1185 const struct ethtool_rxfh_param *rxfh,
1186 struct netlink_ext_ack *extack)
1187 {
1188 struct efx_nic *efx = efx_netdev_priv(net_dev);
1189 struct efx_rss_context_priv *priv;
1190 const u32 *indir = rxfh->indir;
1191 const u8 *key = rxfh->key;
1192
1193 if (!efx->type->rx_push_rss_context_config) {
1194 NL_SET_ERR_MSG_MOD(extack,
1195 "NIC type does not support custom contexts");
1196 return -EOPNOTSUPP;
1197 }
1198 /* Hash function is Toeplitz, cannot be changed */
1199 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
1200 rxfh->hfunc != ETH_RSS_HASH_TOP) {
1201 NL_SET_ERR_MSG_MOD(extack, "Only Toeplitz hash is supported");
1202 return -EOPNOTSUPP;
1203 }
1204
1205 priv = ethtool_rxfh_context_priv(ctx);
1206
1207 if (!key)
1208 key = ethtool_rxfh_context_key(ctx);
1209 if (!indir)
1210 indir = ethtool_rxfh_context_indir(ctx);
1211
1212 return efx->type->rx_push_rss_context_config(efx, priv, indir, key,
1213 false);
1214 }
1215
efx_ethtool_create_rxfh_context(struct net_device * net_dev,struct ethtool_rxfh_context * ctx,const struct ethtool_rxfh_param * rxfh,struct netlink_ext_ack * extack)1216 int efx_ethtool_create_rxfh_context(struct net_device *net_dev,
1217 struct ethtool_rxfh_context *ctx,
1218 const struct ethtool_rxfh_param *rxfh,
1219 struct netlink_ext_ack *extack)
1220 {
1221 struct efx_nic *efx = efx_netdev_priv(net_dev);
1222 struct efx_rss_context_priv *priv;
1223
1224 priv = ethtool_rxfh_context_priv(ctx);
1225
1226 priv->context_id = EFX_MCDI_RSS_CONTEXT_INVALID;
1227 priv->rx_hash_udp_4tuple = false;
1228 /* Generate default indir table and/or key if not specified.
1229 * We use ctx as a place to store these; this is fine because
1230 * we're doing a create, so if we fail then the ctx will just
1231 * be deleted.
1232 */
1233 if (!rxfh->indir)
1234 efx_set_default_rx_indir_table(efx, ethtool_rxfh_context_indir(ctx));
1235 if (!rxfh->key)
1236 netdev_rss_key_fill(ethtool_rxfh_context_key(ctx),
1237 ctx->key_size);
1238 if (rxfh->hfunc == ETH_RSS_HASH_NO_CHANGE)
1239 ctx->hfunc = ETH_RSS_HASH_TOP;
1240 if (rxfh->input_xfrm == RXH_XFRM_NO_CHANGE)
1241 ctx->input_xfrm = 0;
1242 return efx_ethtool_modify_rxfh_context(net_dev, ctx, rxfh, extack);
1243 }
1244
efx_ethtool_remove_rxfh_context(struct net_device * net_dev,struct ethtool_rxfh_context * ctx,u32 rss_context,struct netlink_ext_ack * extack)1245 int efx_ethtool_remove_rxfh_context(struct net_device *net_dev,
1246 struct ethtool_rxfh_context *ctx,
1247 u32 rss_context,
1248 struct netlink_ext_ack *extack)
1249 {
1250 struct efx_nic *efx = efx_netdev_priv(net_dev);
1251 struct efx_rss_context_priv *priv;
1252
1253 if (!efx->type->rx_push_rss_context_config) {
1254 NL_SET_ERR_MSG_MOD(extack,
1255 "NIC type does not support custom contexts");
1256 return -EOPNOTSUPP;
1257 }
1258
1259 priv = ethtool_rxfh_context_priv(ctx);
1260 return efx->type->rx_push_rss_context_config(efx, priv, NULL, NULL,
1261 true);
1262 }
1263
efx_ethtool_set_rxfh(struct net_device * net_dev,struct ethtool_rxfh_param * rxfh,struct netlink_ext_ack * extack)1264 int efx_ethtool_set_rxfh(struct net_device *net_dev,
1265 struct ethtool_rxfh_param *rxfh,
1266 struct netlink_ext_ack *extack)
1267 {
1268 struct efx_nic *efx = efx_netdev_priv(net_dev);
1269 u32 *indir = rxfh->indir;
1270 u8 *key = rxfh->key;
1271
1272 /* Hash function is Toeplitz, cannot be changed */
1273 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
1274 rxfh->hfunc != ETH_RSS_HASH_TOP)
1275 return -EOPNOTSUPP;
1276
1277 /* Custom contexts should use new API */
1278 if (WARN_ON_ONCE(rxfh->rss_context))
1279 return -EIO;
1280
1281 if (!indir && !key)
1282 return 0;
1283
1284 if (!key)
1285 key = efx->rss_context.rx_hash_key;
1286 if (!indir)
1287 indir = efx->rss_context.rx_indir_table;
1288
1289 return efx->type->rx_push_rss_config(efx, true, indir, key);
1290 }
1291
efx_ethtool_reset(struct net_device * net_dev,u32 * flags)1292 int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
1293 {
1294 struct efx_nic *efx = efx_netdev_priv(net_dev);
1295 int rc;
1296
1297 rc = efx->type->map_reset_flags(flags);
1298 if (rc < 0)
1299 return rc;
1300
1301 return efx_reset(efx, rc);
1302 }
1303
efx_ethtool_get_module_eeprom(struct net_device * net_dev,struct ethtool_eeprom * ee,u8 * data)1304 int efx_ethtool_get_module_eeprom(struct net_device *net_dev,
1305 struct ethtool_eeprom *ee,
1306 u8 *data)
1307 {
1308 struct efx_nic *efx = efx_netdev_priv(net_dev);
1309 int ret;
1310
1311 mutex_lock(&efx->mac_lock);
1312 ret = efx_mcdi_phy_get_module_eeprom(efx, ee, data);
1313 mutex_unlock(&efx->mac_lock);
1314
1315 return ret;
1316 }
1317
efx_ethtool_get_module_info(struct net_device * net_dev,struct ethtool_modinfo * modinfo)1318 int efx_ethtool_get_module_info(struct net_device *net_dev,
1319 struct ethtool_modinfo *modinfo)
1320 {
1321 struct efx_nic *efx = efx_netdev_priv(net_dev);
1322 int ret;
1323
1324 mutex_lock(&efx->mac_lock);
1325 ret = efx_mcdi_phy_get_module_info(efx, modinfo);
1326 mutex_unlock(&efx->mac_lock);
1327
1328 return ret;
1329 }
1330