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_siena_ethtool_get_drvinfo(struct net_device * net_dev,struct ethtool_drvinfo * info)103 void efx_siena_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 strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
109 efx_siena_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_siena_ethtool_get_msglevel(struct net_device * net_dev)114 u32 efx_siena_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_siena_ethtool_set_msglevel(struct net_device * net_dev,u32 msg_enable)121 void efx_siena_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_siena_ethtool_get_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)128 void efx_siena_ethtool_get_pauseparam(struct net_device *net_dev,
129 struct ethtool_pauseparam *pause)
130 {
131 struct efx_nic *efx = netdev_priv(net_dev);
132
133 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
134 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
135 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
136 }
137
efx_siena_ethtool_set_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)138 int efx_siena_ethtool_set_pauseparam(struct net_device *net_dev,
139 struct ethtool_pauseparam *pause)
140 {
141 struct efx_nic *efx = netdev_priv(net_dev);
142 u8 wanted_fc, old_fc;
143 u32 old_adv;
144 int rc = 0;
145
146 mutex_lock(&efx->mac_lock);
147
148 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
149 (pause->tx_pause ? EFX_FC_TX : 0) |
150 (pause->autoneg ? EFX_FC_AUTO : 0));
151
152 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
153 netif_dbg(efx, drv, efx->net_dev,
154 "Flow control unsupported: tx ON rx OFF\n");
155 rc = -EINVAL;
156 goto out;
157 }
158
159 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) {
160 netif_dbg(efx, drv, efx->net_dev,
161 "Autonegotiation is disabled\n");
162 rc = -EINVAL;
163 goto out;
164 }
165
166 /* Hook for Falcon bug 11482 workaround */
167 if (efx->type->prepare_enable_fc_tx &&
168 (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))
169 efx->type->prepare_enable_fc_tx(efx);
170
171 old_adv = efx->link_advertising[0];
172 old_fc = efx->wanted_fc;
173 efx_siena_link_set_wanted_fc(efx, wanted_fc);
174 if (efx->link_advertising[0] != old_adv ||
175 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
176 rc = efx_siena_mcdi_port_reconfigure(efx);
177 if (rc) {
178 netif_err(efx, drv, efx->net_dev,
179 "Unable to advertise requested flow "
180 "control setting\n");
181 goto out;
182 }
183 }
184
185 /* Reconfigure the MAC. The PHY *may* generate a link state change event
186 * if the user just changed the advertised capabilities, but there's no
187 * harm doing this twice */
188 efx_siena_mac_reconfigure(efx, false);
189
190 out:
191 mutex_unlock(&efx->mac_lock);
192
193 return rc;
194 }
195
196 /**
197 * efx_fill_test - fill in an individual self-test entry
198 * @test_index: Index of the test
199 * @strings: Ethtool strings, or %NULL
200 * @data: Ethtool test results, or %NULL
201 * @test: Pointer to test result (used only if data != %NULL)
202 * @unit_format: Unit name format (e.g. "chan\%d")
203 * @unit_id: Unit id (e.g. 0 for "chan0")
204 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
205 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
206 *
207 * Fill in an individual self-test entry.
208 */
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)209 static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data,
210 int *test, const char *unit_format, int unit_id,
211 const char *test_format, const char *test_id)
212 {
213 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];
214
215 /* Fill data value, if applicable */
216 if (data)
217 data[test_index] = *test;
218
219 /* Fill string, if applicable */
220 if (strings) {
221 if (strchr(unit_format, '%'))
222 snprintf(unit_str, sizeof(unit_str),
223 unit_format, unit_id);
224 else
225 strcpy(unit_str, unit_format);
226 snprintf(test_str, sizeof(test_str), test_format, test_id);
227 snprintf(strings + test_index * ETH_GSTRING_LEN,
228 ETH_GSTRING_LEN,
229 "%-6s %-24s", unit_str, test_str);
230 }
231 }
232
233 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
234 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->label
235 #define EFX_LOOPBACK_NAME(_mode, _counter) \
236 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_siena_loopback_mode)
237
238 /**
239 * efx_fill_loopback_test - fill in a block of loopback self-test entries
240 * @efx: Efx NIC
241 * @lb_tests: Efx loopback self-test results structure
242 * @mode: Loopback test mode
243 * @test_index: Starting index of the test
244 * @strings: Ethtool strings, or %NULL
245 * @data: Ethtool test results, or %NULL
246 *
247 * Fill in a block of loopback self-test entries. Return new test
248 * index.
249 */
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)250 static int efx_fill_loopback_test(struct efx_nic *efx,
251 struct efx_loopback_self_tests *lb_tests,
252 enum efx_loopback_mode mode,
253 unsigned int test_index,
254 u8 *strings, u64 *data)
255 {
256 struct efx_channel *channel =
257 efx_get_channel(efx, efx->tx_channel_offset);
258 struct efx_tx_queue *tx_queue;
259
260 efx_for_each_channel_tx_queue(tx_queue, channel) {
261 efx_fill_test(test_index++, strings, data,
262 &lb_tests->tx_sent[tx_queue->label],
263 EFX_TX_QUEUE_NAME(tx_queue),
264 EFX_LOOPBACK_NAME(mode, "tx_sent"));
265 efx_fill_test(test_index++, strings, data,
266 &lb_tests->tx_done[tx_queue->label],
267 EFX_TX_QUEUE_NAME(tx_queue),
268 EFX_LOOPBACK_NAME(mode, "tx_done"));
269 }
270 efx_fill_test(test_index++, strings, data,
271 &lb_tests->rx_good,
272 "rx", 0,
273 EFX_LOOPBACK_NAME(mode, "rx_good"));
274 efx_fill_test(test_index++, strings, data,
275 &lb_tests->rx_bad,
276 "rx", 0,
277 EFX_LOOPBACK_NAME(mode, "rx_bad"));
278
279 return test_index;
280 }
281
282 /**
283 * efx_ethtool_fill_self_tests - get self-test details
284 * @efx: Efx NIC
285 * @tests: Efx self-test results structure, or %NULL
286 * @strings: Ethtool strings, or %NULL
287 * @data: Ethtool test results, or %NULL
288 *
289 * Get self-test number of strings, strings, and/or test results.
290 * Return number of strings (== number of test results).
291 *
292 * The reason for merging these three functions is to make sure that
293 * they can never be inconsistent.
294 */
efx_ethtool_fill_self_tests(struct efx_nic * efx,struct efx_self_tests * tests,u8 * strings,u64 * data)295 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
296 struct efx_self_tests *tests,
297 u8 *strings, u64 *data)
298 {
299 struct efx_channel *channel;
300 unsigned int n = 0, i;
301 enum efx_loopback_mode mode;
302
303 efx_fill_test(n++, strings, data, &tests->phy_alive,
304 "phy", 0, "alive", NULL);
305 efx_fill_test(n++, strings, data, &tests->nvram,
306 "core", 0, "nvram", NULL);
307 efx_fill_test(n++, strings, data, &tests->interrupt,
308 "core", 0, "interrupt", NULL);
309
310 /* Event queues */
311 efx_for_each_channel(channel, efx) {
312 efx_fill_test(n++, strings, data,
313 &tests->eventq_dma[channel->channel],
314 EFX_CHANNEL_NAME(channel),
315 "eventq.dma", NULL);
316 efx_fill_test(n++, strings, data,
317 &tests->eventq_int[channel->channel],
318 EFX_CHANNEL_NAME(channel),
319 "eventq.int", NULL);
320 }
321
322 efx_fill_test(n++, strings, data, &tests->memory,
323 "core", 0, "memory", NULL);
324 efx_fill_test(n++, strings, data, &tests->registers,
325 "core", 0, "registers", NULL);
326
327 for (i = 0; true; ++i) {
328 const char *name;
329
330 EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
331 name = efx_siena_mcdi_phy_test_name(efx, i);
332 if (name == NULL)
333 break;
334
335 efx_fill_test(n++, strings, data, &tests->phy_ext[i], "phy", 0, name, NULL);
336 }
337
338 /* Loopback tests */
339 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
340 if (!(efx->loopback_modes & (1 << mode)))
341 continue;
342 n = efx_fill_loopback_test(efx,
343 &tests->loopback[mode], mode, n,
344 strings, data);
345 }
346
347 return n;
348 }
349
efx_siena_ethtool_self_test(struct net_device * net_dev,struct ethtool_test * test,u64 * data)350 void efx_siena_ethtool_self_test(struct net_device *net_dev,
351 struct ethtool_test *test, u64 *data)
352 {
353 struct efx_nic *efx = netdev_priv(net_dev);
354 struct efx_self_tests *efx_tests;
355 bool already_up;
356 int rc = -ENOMEM;
357
358 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
359 if (!efx_tests)
360 goto fail;
361
362 if (efx->state != STATE_READY) {
363 rc = -EBUSY;
364 goto out;
365 }
366
367 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
368 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
369
370 /* We need rx buffers and interrupts. */
371 already_up = (efx->net_dev->flags & IFF_UP);
372 if (!already_up) {
373 rc = dev_open(efx->net_dev, NULL);
374 if (rc) {
375 netif_err(efx, drv, efx->net_dev,
376 "failed opening device.\n");
377 goto out;
378 }
379 }
380
381 rc = efx_siena_selftest(efx, efx_tests, test->flags);
382
383 if (!already_up)
384 dev_close(efx->net_dev);
385
386 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
387 rc == 0 ? "passed" : "failed",
388 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
389
390 out:
391 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
392 kfree(efx_tests);
393 fail:
394 if (rc)
395 test->flags |= ETH_TEST_FL_FAILED;
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_siena_ethtool_get_sset_count(struct net_device * net_dev,int string_set)442 int efx_siena_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_siena_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_siena_ethtool_get_strings(struct net_device * net_dev,u32 string_set,u8 * strings)459 void efx_siena_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 strscpy(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_siena_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_siena_ethtool_get_stats(struct net_device * net_dev,struct ethtool_stats * stats,u64 * data)486 void efx_siena_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_siena_ptp_update_stats(efx, data);
558 }
559
560 /* This must be called with rtnl_lock held. */
efx_siena_ethtool_get_link_ksettings(struct net_device * net_dev,struct ethtool_link_ksettings * cmd)561 int efx_siena_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
567 mutex_lock(&efx->mac_lock);
568 efx_siena_mcdi_phy_get_link_ksettings(efx, cmd);
569 mutex_unlock(&efx->mac_lock);
570
571 /* Both MACs support pause frames (bidirectional and respond-only) */
572 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
573 ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
574
575 if (LOOPBACK_INTERNAL(efx)) {
576 cmd->base.speed = link_state->speed;
577 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
578 }
579
580 return 0;
581 }
582
583 /* This must be called with rtnl_lock held. */
584 int
efx_siena_ethtool_set_link_ksettings(struct net_device * net_dev,const struct ethtool_link_ksettings * cmd)585 efx_siena_ethtool_set_link_ksettings(struct net_device *net_dev,
586 const struct ethtool_link_ksettings *cmd)
587 {
588 struct efx_nic *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_siena_mcdi_phy_set_link_ksettings(efx, cmd);
601 mutex_unlock(&efx->mac_lock);
602 return rc;
603 }
604
efx_siena_ethtool_get_fecparam(struct net_device * net_dev,struct ethtool_fecparam * fecparam)605 int efx_siena_ethtool_get_fecparam(struct net_device *net_dev,
606 struct ethtool_fecparam *fecparam)
607 {
608 struct efx_nic *efx = netdev_priv(net_dev);
609 int rc;
610
611 mutex_lock(&efx->mac_lock);
612 rc = efx_siena_mcdi_phy_get_fecparam(efx, fecparam);
613 mutex_unlock(&efx->mac_lock);
614
615 return rc;
616 }
617
efx_siena_ethtool_set_fecparam(struct net_device * net_dev,struct ethtool_fecparam * fecparam)618 int efx_siena_ethtool_set_fecparam(struct net_device *net_dev,
619 struct ethtool_fecparam *fecparam)
620 {
621 struct efx_nic *efx = netdev_priv(net_dev);
622 int rc;
623
624 mutex_lock(&efx->mac_lock);
625 rc = efx_siena_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 */
632 static 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
ip6_fill_mask(__be32 * mask)639 static inline void ip6_fill_mask(__be32 *mask)
640 {
641 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
642 }
643
efx_ethtool_get_class_rule(struct efx_nic * efx,struct ethtool_rx_flow_spec * rule,u32 * rss_context)644 static 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
efx_siena_ethtool_get_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * info,u32 * rule_locs)810 int efx_siena_ethtool_get_rxnfc(struct net_device *net_dev,
811 struct ethtool_rxnfc *info, u32 *rule_locs)
812 {
813 struct efx_nic *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_siena_find_rss_context_entry(efx,
829 info->rss_context);
830 if (!ctx) {
831 rc = -ENOENT;
832 goto out_unlock;
833 }
834 }
835
836 data = 0;
837 if (!efx_rss_active(ctx)) /* No RSS */
838 goto out_setdata_unlock;
839
840 switch (info->flow_type & ~FLOW_RSS) {
841 case UDP_V4_FLOW:
842 case UDP_V6_FLOW:
843 if (ctx->rx_hash_udp_4tuple)
844 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
845 RXH_IP_SRC | RXH_IP_DST);
846 else
847 data = RXH_IP_SRC | RXH_IP_DST;
848 break;
849 case TCP_V4_FLOW:
850 case TCP_V6_FLOW:
851 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |
852 RXH_IP_SRC | RXH_IP_DST);
853 break;
854 case SCTP_V4_FLOW:
855 case SCTP_V6_FLOW:
856 case AH_ESP_V4_FLOW:
857 case AH_ESP_V6_FLOW:
858 case IPV4_FLOW:
859 case IPV6_FLOW:
860 data = RXH_IP_SRC | RXH_IP_DST;
861 break;
862 default:
863 break;
864 }
865 out_setdata_unlock:
866 info->data = data;
867 out_unlock:
868 mutex_unlock(&efx->rss_lock);
869 return rc;
870 }
871
872 case ETHTOOL_GRXCLSRLCNT:
873 info->data = efx_filter_get_rx_id_limit(efx);
874 if (info->data == 0)
875 return -EOPNOTSUPP;
876 info->data |= RX_CLS_LOC_SPECIAL;
877 info->rule_cnt =
878 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);
879 return 0;
880
881 case ETHTOOL_GRXCLSRULE:
882 if (efx_filter_get_rx_id_limit(efx) == 0)
883 return -EOPNOTSUPP;
884 rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context);
885 if (rc < 0)
886 return rc;
887 if (info->fs.flow_type & FLOW_RSS)
888 info->rss_context = rss_context;
889 return 0;
890
891 case ETHTOOL_GRXCLSRLALL:
892 info->data = efx_filter_get_rx_id_limit(efx);
893 if (info->data == 0)
894 return -EOPNOTSUPP;
895 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,
896 rule_locs, info->rule_cnt);
897 if (rc < 0)
898 return rc;
899 info->rule_cnt = rc;
900 return 0;
901
902 default:
903 return -EOPNOTSUPP;
904 }
905 }
906
ip6_mask_is_full(__be32 mask[4])907 static inline bool ip6_mask_is_full(__be32 mask[4])
908 {
909 return !~(mask[0] & mask[1] & mask[2] & mask[3]);
910 }
911
ip6_mask_is_empty(__be32 mask[4])912 static inline bool ip6_mask_is_empty(__be32 mask[4])
913 {
914 return !(mask[0] | mask[1] | mask[2] | mask[3]);
915 }
916
efx_ethtool_set_class_rule(struct efx_nic * efx,struct ethtool_rx_flow_spec * rule,u32 rss_context)917 static int efx_ethtool_set_class_rule(struct efx_nic *efx,
918 struct ethtool_rx_flow_spec *rule,
919 u32 rss_context)
920 {
921 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
922 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
923 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
924 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
925 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
926 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
927 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
928 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
929 u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS);
930 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
931 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
932 enum efx_filter_flags flags = 0;
933 struct efx_filter_spec spec;
934 int rc;
935
936 /* Check that user wants us to choose the location */
937 if (rule->location != RX_CLS_LOC_ANY)
938 return -EINVAL;
939
940 /* Range-check ring_cookie */
941 if (rule->ring_cookie >= efx->n_rx_channels &&
942 rule->ring_cookie != RX_CLS_FLOW_DISC)
943 return -EINVAL;
944
945 /* Check for unsupported extensions */
946 if ((rule->flow_type & FLOW_EXT) &&
947 (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
948 rule->m_ext.data[1]))
949 return -EINVAL;
950
951 if (efx->rx_scatter)
952 flags |= EFX_FILTER_FLAG_RX_SCATTER;
953 if (rule->flow_type & FLOW_RSS)
954 flags |= EFX_FILTER_FLAG_RX_RSS;
955
956 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags,
957 (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
958 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
959
960 if (rule->flow_type & FLOW_RSS)
961 spec.rss_context = rss_context;
962
963 switch (flow_type) {
964 case TCP_V4_FLOW:
965 case UDP_V4_FLOW:
966 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
967 EFX_FILTER_MATCH_IP_PROTO);
968 spec.ether_type = htons(ETH_P_IP);
969 spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP
970 : IPPROTO_UDP;
971 if (ip_mask->ip4dst) {
972 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
973 return -EINVAL;
974 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
975 spec.loc_host[0] = ip_entry->ip4dst;
976 }
977 if (ip_mask->ip4src) {
978 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
979 return -EINVAL;
980 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
981 spec.rem_host[0] = ip_entry->ip4src;
982 }
983 if (ip_mask->pdst) {
984 if (ip_mask->pdst != PORT_FULL_MASK)
985 return -EINVAL;
986 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
987 spec.loc_port = ip_entry->pdst;
988 }
989 if (ip_mask->psrc) {
990 if (ip_mask->psrc != PORT_FULL_MASK)
991 return -EINVAL;
992 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
993 spec.rem_port = ip_entry->psrc;
994 }
995 if (ip_mask->tos)
996 return -EINVAL;
997 break;
998
999 case TCP_V6_FLOW:
1000 case UDP_V6_FLOW:
1001 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
1002 EFX_FILTER_MATCH_IP_PROTO);
1003 spec.ether_type = htons(ETH_P_IPV6);
1004 spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP
1005 : IPPROTO_UDP;
1006 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1007 if (!ip6_mask_is_full(ip6_mask->ip6dst))
1008 return -EINVAL;
1009 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1010 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1011 }
1012 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1013 if (!ip6_mask_is_full(ip6_mask->ip6src))
1014 return -EINVAL;
1015 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1016 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1017 }
1018 if (ip6_mask->pdst) {
1019 if (ip6_mask->pdst != PORT_FULL_MASK)
1020 return -EINVAL;
1021 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
1022 spec.loc_port = ip6_entry->pdst;
1023 }
1024 if (ip6_mask->psrc) {
1025 if (ip6_mask->psrc != PORT_FULL_MASK)
1026 return -EINVAL;
1027 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
1028 spec.rem_port = ip6_entry->psrc;
1029 }
1030 if (ip6_mask->tclass)
1031 return -EINVAL;
1032 break;
1033
1034 case IPV4_USER_FLOW:
1035 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1036 uip_entry->ip_ver != ETH_RX_NFC_IP4)
1037 return -EINVAL;
1038 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1039 spec.ether_type = htons(ETH_P_IP);
1040 if (uip_mask->ip4dst) {
1041 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1042 return -EINVAL;
1043 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1044 spec.loc_host[0] = uip_entry->ip4dst;
1045 }
1046 if (uip_mask->ip4src) {
1047 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1048 return -EINVAL;
1049 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1050 spec.rem_host[0] = uip_entry->ip4src;
1051 }
1052 if (uip_mask->proto) {
1053 if (uip_mask->proto != IP_PROTO_FULL_MASK)
1054 return -EINVAL;
1055 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1056 spec.ip_proto = uip_entry->proto;
1057 }
1058 break;
1059
1060 case IPV6_USER_FLOW:
1061 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1062 return -EINVAL;
1063 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;
1064 spec.ether_type = htons(ETH_P_IPV6);
1065 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1066 if (!ip6_mask_is_full(uip6_mask->ip6dst))
1067 return -EINVAL;
1068 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
1069 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1070 }
1071 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1072 if (!ip6_mask_is_full(uip6_mask->ip6src))
1073 return -EINVAL;
1074 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
1075 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1076 }
1077 if (uip6_mask->l4_proto) {
1078 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1079 return -EINVAL;
1080 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;
1081 spec.ip_proto = uip6_entry->l4_proto;
1082 }
1083 break;
1084
1085 case ETHER_FLOW:
1086 if (!is_zero_ether_addr(mac_mask->h_dest)) {
1087 if (ether_addr_equal(mac_mask->h_dest,
1088 mac_addr_ig_mask))
1089 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
1090 else if (is_broadcast_ether_addr(mac_mask->h_dest))
1091 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;
1092 else
1093 return -EINVAL;
1094 ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1095 }
1096 if (!is_zero_ether_addr(mac_mask->h_source)) {
1097 if (!is_broadcast_ether_addr(mac_mask->h_source))
1098 return -EINVAL;
1099 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;
1100 ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1101 }
1102 if (mac_mask->h_proto) {
1103 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1104 return -EINVAL;
1105 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;
1106 spec.ether_type = mac_entry->h_proto;
1107 }
1108 break;
1109
1110 default:
1111 return -EINVAL;
1112 }
1113
1114 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1115 if (rule->m_ext.vlan_tci != htons(0xfff))
1116 return -EINVAL;
1117 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;
1118 spec.outer_vid = rule->h_ext.vlan_tci;
1119 }
1120
1121 rc = efx_filter_insert_filter(efx, &spec, true);
1122 if (rc < 0)
1123 return rc;
1124
1125 rule->location = rc;
1126 return 0;
1127 }
1128
efx_siena_ethtool_set_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * info)1129 int efx_siena_ethtool_set_rxnfc(struct net_device *net_dev,
1130 struct ethtool_rxnfc *info)
1131 {
1132 struct efx_nic *efx = netdev_priv(net_dev);
1133
1134 if (efx_filter_get_rx_id_limit(efx) == 0)
1135 return -EOPNOTSUPP;
1136
1137 switch (info->cmd) {
1138 case ETHTOOL_SRXCLSRLINS:
1139 return efx_ethtool_set_class_rule(efx, &info->fs,
1140 info->rss_context);
1141
1142 case ETHTOOL_SRXCLSRLDEL:
1143 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,
1144 info->fs.location);
1145
1146 default:
1147 return -EOPNOTSUPP;
1148 }
1149 }
1150
efx_siena_ethtool_get_rxfh_indir_size(struct net_device * net_dev)1151 u32 efx_siena_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1152 {
1153 struct efx_nic *efx = netdev_priv(net_dev);
1154
1155 if (efx->n_rx_channels == 1)
1156 return 0;
1157 return ARRAY_SIZE(efx->rss_context.rx_indir_table);
1158 }
1159
efx_siena_ethtool_get_rxfh_key_size(struct net_device * net_dev)1160 u32 efx_siena_ethtool_get_rxfh_key_size(struct net_device *net_dev)
1161 {
1162 struct efx_nic *efx = netdev_priv(net_dev);
1163
1164 return efx->type->rx_hash_key_size;
1165 }
1166
efx_siena_ethtool_get_rxfh(struct net_device * net_dev,u32 * indir,u8 * key,u8 * hfunc)1167 int efx_siena_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key,
1168 u8 *hfunc)
1169 {
1170 struct efx_nic *efx = netdev_priv(net_dev);
1171 int rc;
1172
1173 rc = efx->type->rx_pull_rss_config(efx);
1174 if (rc)
1175 return rc;
1176
1177 if (hfunc)
1178 *hfunc = ETH_RSS_HASH_TOP;
1179 if (indir)
1180 memcpy(indir, efx->rss_context.rx_indir_table,
1181 sizeof(efx->rss_context.rx_indir_table));
1182 if (key)
1183 memcpy(key, efx->rss_context.rx_hash_key,
1184 efx->type->rx_hash_key_size);
1185 return 0;
1186 }
1187
efx_siena_ethtool_set_rxfh(struct net_device * net_dev,const u32 * indir,const u8 * key,const u8 hfunc)1188 int efx_siena_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir,
1189 const u8 *key, const u8 hfunc)
1190 {
1191 struct efx_nic *efx = netdev_priv(net_dev);
1192
1193 /* Hash function is Toeplitz, cannot be changed */
1194 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
1195 return -EOPNOTSUPP;
1196 if (!indir && !key)
1197 return 0;
1198
1199 if (!key)
1200 key = efx->rss_context.rx_hash_key;
1201 if (!indir)
1202 indir = efx->rss_context.rx_indir_table;
1203
1204 return efx->type->rx_push_rss_config(efx, true, indir, key);
1205 }
1206
efx_siena_ethtool_get_rxfh_context(struct net_device * net_dev,u32 * indir,u8 * key,u8 * hfunc,u32 rss_context)1207 int efx_siena_ethtool_get_rxfh_context(struct net_device *net_dev, u32 *indir,
1208 u8 *key, u8 *hfunc, u32 rss_context)
1209 {
1210 struct efx_nic *efx = netdev_priv(net_dev);
1211 struct efx_rss_context *ctx;
1212 int rc = 0;
1213
1214 if (!efx->type->rx_pull_rss_context_config)
1215 return -EOPNOTSUPP;
1216
1217 mutex_lock(&efx->rss_lock);
1218 ctx = efx_siena_find_rss_context_entry(efx, rss_context);
1219 if (!ctx) {
1220 rc = -ENOENT;
1221 goto out_unlock;
1222 }
1223 rc = efx->type->rx_pull_rss_context_config(efx, ctx);
1224 if (rc)
1225 goto out_unlock;
1226
1227 if (hfunc)
1228 *hfunc = ETH_RSS_HASH_TOP;
1229 if (indir)
1230 memcpy(indir, ctx->rx_indir_table, sizeof(ctx->rx_indir_table));
1231 if (key)
1232 memcpy(key, ctx->rx_hash_key, efx->type->rx_hash_key_size);
1233 out_unlock:
1234 mutex_unlock(&efx->rss_lock);
1235 return rc;
1236 }
1237
efx_siena_ethtool_set_rxfh_context(struct net_device * net_dev,const u32 * indir,const u8 * key,const u8 hfunc,u32 * rss_context,bool delete)1238 int efx_siena_ethtool_set_rxfh_context(struct net_device *net_dev,
1239 const u32 *indir, const u8 *key,
1240 const u8 hfunc, u32 *rss_context,
1241 bool delete)
1242 {
1243 struct efx_nic *efx = netdev_priv(net_dev);
1244 struct efx_rss_context *ctx;
1245 bool allocated = false;
1246 int rc;
1247
1248 if (!efx->type->rx_push_rss_context_config)
1249 return -EOPNOTSUPP;
1250 /* Hash function is Toeplitz, cannot be changed */
1251 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
1252 return -EOPNOTSUPP;
1253
1254 mutex_lock(&efx->rss_lock);
1255
1256 if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) {
1257 if (delete) {
1258 /* alloc + delete == Nothing to do */
1259 rc = -EINVAL;
1260 goto out_unlock;
1261 }
1262 ctx = efx_siena_alloc_rss_context_entry(efx);
1263 if (!ctx) {
1264 rc = -ENOMEM;
1265 goto out_unlock;
1266 }
1267 ctx->context_id = EFX_MCDI_RSS_CONTEXT_INVALID;
1268 /* Initialise indir table and key to defaults */
1269 efx_siena_set_default_rx_indir_table(efx, ctx);
1270 netdev_rss_key_fill(ctx->rx_hash_key, sizeof(ctx->rx_hash_key));
1271 allocated = true;
1272 } else {
1273 ctx = efx_siena_find_rss_context_entry(efx, *rss_context);
1274 if (!ctx) {
1275 rc = -ENOENT;
1276 goto out_unlock;
1277 }
1278 }
1279
1280 if (delete) {
1281 /* delete this context */
1282 rc = efx->type->rx_push_rss_context_config(efx, ctx, NULL, NULL);
1283 if (!rc)
1284 efx_siena_free_rss_context_entry(ctx);
1285 goto out_unlock;
1286 }
1287
1288 if (!key)
1289 key = ctx->rx_hash_key;
1290 if (!indir)
1291 indir = ctx->rx_indir_table;
1292
1293 rc = efx->type->rx_push_rss_context_config(efx, ctx, indir, key);
1294 if (rc && allocated)
1295 efx_siena_free_rss_context_entry(ctx);
1296 else
1297 *rss_context = ctx->user_id;
1298 out_unlock:
1299 mutex_unlock(&efx->rss_lock);
1300 return rc;
1301 }
1302
efx_siena_ethtool_reset(struct net_device * net_dev,u32 * flags)1303 int efx_siena_ethtool_reset(struct net_device *net_dev, u32 *flags)
1304 {
1305 struct efx_nic *efx = netdev_priv(net_dev);
1306 int rc;
1307
1308 rc = efx->type->map_reset_flags(flags);
1309 if (rc < 0)
1310 return rc;
1311
1312 return efx_siena_reset(efx, rc);
1313 }
1314
efx_siena_ethtool_get_module_eeprom(struct net_device * net_dev,struct ethtool_eeprom * ee,u8 * data)1315 int efx_siena_ethtool_get_module_eeprom(struct net_device *net_dev,
1316 struct ethtool_eeprom *ee,
1317 u8 *data)
1318 {
1319 struct efx_nic *efx = netdev_priv(net_dev);
1320 int ret;
1321
1322 mutex_lock(&efx->mac_lock);
1323 ret = efx_siena_mcdi_phy_get_module_eeprom(efx, ee, data);
1324 mutex_unlock(&efx->mac_lock);
1325
1326 return ret;
1327 }
1328
efx_siena_ethtool_get_module_info(struct net_device * net_dev,struct ethtool_modinfo * modinfo)1329 int efx_siena_ethtool_get_module_info(struct net_device *net_dev,
1330 struct ethtool_modinfo *modinfo)
1331 {
1332 struct efx_nic *efx = netdev_priv(net_dev);
1333 int ret;
1334
1335 mutex_lock(&efx->mac_lock);
1336 ret = efx_siena_mcdi_phy_get_module_info(efx, modinfo);
1337 mutex_unlock(&efx->mac_lock);
1338
1339 return ret;
1340 }
1341