1 // SPDX-License-Identifier: GPL-2.0-only
2 /****************************************************************************
3 * Driver for Solarflare network controllers and boards
4 * Copyright 2005-2006 Fen Systems Ltd.
5 * Copyright 2006-2013 Solarflare Communications Inc.
6 */
7
8 #include <linux/netdevice.h>
9 #include <linux/ethtool.h>
10 #include <linux/rtnetlink.h>
11 #include <linux/in.h>
12 #include "net_driver.h"
13 #include "workarounds.h"
14 #include "selftest.h"
15 #include "efx.h"
16 #include "filter.h"
17 #include "nic.h"
18
19 struct ef4_sw_stat_desc {
20 const char *name;
21 enum {
22 EF4_ETHTOOL_STAT_SOURCE_nic,
23 EF4_ETHTOOL_STAT_SOURCE_channel,
24 EF4_ETHTOOL_STAT_SOURCE_tx_queue
25 } source;
26 unsigned offset;
27 u64(*get_stat) (void *field); /* Reader function */
28 };
29
30 /* Initialiser for a struct ef4_sw_stat_desc with type-checking */
31 #define EF4_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
32 get_stat_function) { \
33 .name = #stat_name, \
34 .source = EF4_ETHTOOL_STAT_SOURCE_##source_name, \
35 .offset = ((((field_type *) 0) == \
36 &((struct ef4_##source_name *)0)->field) ? \
37 offsetof(struct ef4_##source_name, field) : \
38 offsetof(struct ef4_##source_name, field)), \
39 .get_stat = get_stat_function, \
40 }
41
ef4_get_uint_stat(void * field)42 static u64 ef4_get_uint_stat(void *field)
43 {
44 return *(unsigned int *)field;
45 }
46
ef4_get_atomic_stat(void * field)47 static u64 ef4_get_atomic_stat(void *field)
48 {
49 return atomic_read((atomic_t *) field);
50 }
51
52 #define EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
53 EF4_ETHTOOL_STAT(field, nic, field, \
54 atomic_t, ef4_get_atomic_stat)
55
56 #define EF4_ETHTOOL_UINT_CHANNEL_STAT(field) \
57 EF4_ETHTOOL_STAT(field, channel, n_##field, \
58 unsigned int, ef4_get_uint_stat)
59
60 #define EF4_ETHTOOL_UINT_TXQ_STAT(field) \
61 EF4_ETHTOOL_STAT(tx_##field, tx_queue, field, \
62 unsigned int, ef4_get_uint_stat)
63
64 static const struct ef4_sw_stat_desc ef4_sw_stat_desc[] = {
65 EF4_ETHTOOL_UINT_TXQ_STAT(merge_events),
66 EF4_ETHTOOL_UINT_TXQ_STAT(pushes),
67 EF4_ETHTOOL_UINT_TXQ_STAT(cb_packets),
68 EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
69 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
70 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
71 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
72 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
73 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
74 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),
75 EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),
76 };
77
78 #define EF4_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(ef4_sw_stat_desc)
79
80 #define EF4_ETHTOOL_EEPROM_MAGIC 0xEFAB
81
82 /**************************************************************************
83 *
84 * Ethtool operations
85 *
86 **************************************************************************
87 */
88
89 /* Identify device by flashing LEDs */
ef4_ethtool_phys_id(struct net_device * net_dev,enum ethtool_phys_id_state state)90 static int ef4_ethtool_phys_id(struct net_device *net_dev,
91 enum ethtool_phys_id_state state)
92 {
93 struct ef4_nic *efx = netdev_priv(net_dev);
94 enum ef4_led_mode mode = EF4_LED_DEFAULT;
95
96 switch (state) {
97 case ETHTOOL_ID_ON:
98 mode = EF4_LED_ON;
99 break;
100 case ETHTOOL_ID_OFF:
101 mode = EF4_LED_OFF;
102 break;
103 case ETHTOOL_ID_INACTIVE:
104 mode = EF4_LED_DEFAULT;
105 break;
106 case ETHTOOL_ID_ACTIVE:
107 return 1; /* cycle on/off once per second */
108 }
109
110 efx->type->set_id_led(efx, mode);
111 return 0;
112 }
113
114 /* This must be called with rtnl_lock held. */
115 static int
ef4_ethtool_get_link_ksettings(struct net_device * net_dev,struct ethtool_link_ksettings * cmd)116 ef4_ethtool_get_link_ksettings(struct net_device *net_dev,
117 struct ethtool_link_ksettings *cmd)
118 {
119 struct ef4_nic *efx = netdev_priv(net_dev);
120 struct ef4_link_state *link_state = &efx->link_state;
121
122 mutex_lock(&efx->mac_lock);
123 efx->phy_op->get_link_ksettings(efx, cmd);
124 mutex_unlock(&efx->mac_lock);
125
126 /* Both MACs support pause frames (bidirectional and respond-only) */
127 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
128 ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);
129
130 if (LOOPBACK_INTERNAL(efx)) {
131 cmd->base.speed = link_state->speed;
132 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
133 }
134
135 return 0;
136 }
137
138 /* This must be called with rtnl_lock held. */
139 static int
ef4_ethtool_set_link_ksettings(struct net_device * net_dev,const struct ethtool_link_ksettings * cmd)140 ef4_ethtool_set_link_ksettings(struct net_device *net_dev,
141 const struct ethtool_link_ksettings *cmd)
142 {
143 struct ef4_nic *efx = netdev_priv(net_dev);
144 int rc;
145
146 /* GMAC does not support 1000Mbps HD */
147 if ((cmd->base.speed == SPEED_1000) &&
148 (cmd->base.duplex != DUPLEX_FULL)) {
149 netif_dbg(efx, drv, efx->net_dev,
150 "rejecting unsupported 1000Mbps HD setting\n");
151 return -EINVAL;
152 }
153
154 mutex_lock(&efx->mac_lock);
155 rc = efx->phy_op->set_link_ksettings(efx, cmd);
156 mutex_unlock(&efx->mac_lock);
157 return rc;
158 }
159
ef4_ethtool_get_drvinfo(struct net_device * net_dev,struct ethtool_drvinfo * info)160 static void ef4_ethtool_get_drvinfo(struct net_device *net_dev,
161 struct ethtool_drvinfo *info)
162 {
163 struct ef4_nic *efx = netdev_priv(net_dev);
164
165 strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
166 strscpy(info->version, EF4_DRIVER_VERSION, sizeof(info->version));
167 strscpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
168 }
169
ef4_ethtool_get_regs_len(struct net_device * net_dev)170 static int ef4_ethtool_get_regs_len(struct net_device *net_dev)
171 {
172 return ef4_nic_get_regs_len(netdev_priv(net_dev));
173 }
174
ef4_ethtool_get_regs(struct net_device * net_dev,struct ethtool_regs * regs,void * buf)175 static void ef4_ethtool_get_regs(struct net_device *net_dev,
176 struct ethtool_regs *regs, void *buf)
177 {
178 struct ef4_nic *efx = netdev_priv(net_dev);
179
180 regs->version = efx->type->revision;
181 ef4_nic_get_regs(efx, buf);
182 }
183
ef4_ethtool_get_msglevel(struct net_device * net_dev)184 static u32 ef4_ethtool_get_msglevel(struct net_device *net_dev)
185 {
186 struct ef4_nic *efx = netdev_priv(net_dev);
187 return efx->msg_enable;
188 }
189
ef4_ethtool_set_msglevel(struct net_device * net_dev,u32 msg_enable)190 static void ef4_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
191 {
192 struct ef4_nic *efx = netdev_priv(net_dev);
193 efx->msg_enable = msg_enable;
194 }
195
196 /**
197 * ef4_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 */
ef4_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 ef4_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 EF4_CHANNEL_NAME(_channel) "chan%d", _channel->channel
234 #define EF4_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
235 #define EF4_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
236 #define EF4_LOOPBACK_NAME(_mode, _counter) \
237 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, ef4_loopback_mode)
238
239 /**
240 * ef4_fill_loopback_test - fill in a block of loopback self-test entries
241 * @efx: Efx NIC
242 * @lb_tests: Efx loopback self-test results structure
243 * @mode: Loopback test mode
244 * @test_index: Starting index of the test
245 * @strings: Ethtool strings, or %NULL
246 * @data: Ethtool test results, or %NULL
247 *
248 * Fill in a block of loopback self-test entries. Return new test
249 * index.
250 */
ef4_fill_loopback_test(struct ef4_nic * efx,struct ef4_loopback_self_tests * lb_tests,enum ef4_loopback_mode mode,unsigned int test_index,u8 * strings,u64 * data)251 static int ef4_fill_loopback_test(struct ef4_nic *efx,
252 struct ef4_loopback_self_tests *lb_tests,
253 enum ef4_loopback_mode mode,
254 unsigned int test_index,
255 u8 *strings, u64 *data)
256 {
257 struct ef4_channel *channel =
258 ef4_get_channel(efx, efx->tx_channel_offset);
259 struct ef4_tx_queue *tx_queue;
260
261 ef4_for_each_channel_tx_queue(tx_queue, channel) {
262 ef4_fill_test(test_index++, strings, data,
263 &lb_tests->tx_sent[tx_queue->queue],
264 EF4_TX_QUEUE_NAME(tx_queue),
265 EF4_LOOPBACK_NAME(mode, "tx_sent"));
266 ef4_fill_test(test_index++, strings, data,
267 &lb_tests->tx_done[tx_queue->queue],
268 EF4_TX_QUEUE_NAME(tx_queue),
269 EF4_LOOPBACK_NAME(mode, "tx_done"));
270 }
271 ef4_fill_test(test_index++, strings, data,
272 &lb_tests->rx_good,
273 "rx", 0,
274 EF4_LOOPBACK_NAME(mode, "rx_good"));
275 ef4_fill_test(test_index++, strings, data,
276 &lb_tests->rx_bad,
277 "rx", 0,
278 EF4_LOOPBACK_NAME(mode, "rx_bad"));
279
280 return test_index;
281 }
282
283 /**
284 * ef4_ethtool_fill_self_tests - get self-test details
285 * @efx: Efx NIC
286 * @tests: Efx self-test results structure, or %NULL
287 * @strings: Ethtool strings, or %NULL
288 * @data: Ethtool test results, or %NULL
289 *
290 * Get self-test number of strings, strings, and/or test results.
291 * Return number of strings (== number of test results).
292 *
293 * The reason for merging these three functions is to make sure that
294 * they can never be inconsistent.
295 */
ef4_ethtool_fill_self_tests(struct ef4_nic * efx,struct ef4_self_tests * tests,u8 * strings,u64 * data)296 static int ef4_ethtool_fill_self_tests(struct ef4_nic *efx,
297 struct ef4_self_tests *tests,
298 u8 *strings, u64 *data)
299 {
300 struct ef4_channel *channel;
301 unsigned int n = 0, i;
302 enum ef4_loopback_mode mode;
303
304 ef4_fill_test(n++, strings, data, &tests->phy_alive,
305 "phy", 0, "alive", NULL);
306 ef4_fill_test(n++, strings, data, &tests->nvram,
307 "core", 0, "nvram", NULL);
308 ef4_fill_test(n++, strings, data, &tests->interrupt,
309 "core", 0, "interrupt", NULL);
310
311 /* Event queues */
312 ef4_for_each_channel(channel, efx) {
313 ef4_fill_test(n++, strings, data,
314 &tests->eventq_dma[channel->channel],
315 EF4_CHANNEL_NAME(channel),
316 "eventq.dma", NULL);
317 ef4_fill_test(n++, strings, data,
318 &tests->eventq_int[channel->channel],
319 EF4_CHANNEL_NAME(channel),
320 "eventq.int", NULL);
321 }
322
323 ef4_fill_test(n++, strings, data, &tests->memory,
324 "core", 0, "memory", NULL);
325 ef4_fill_test(n++, strings, data, &tests->registers,
326 "core", 0, "registers", NULL);
327
328 if (efx->phy_op->run_tests != NULL) {
329 EF4_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
330
331 for (i = 0; true; ++i) {
332 const char *name;
333
334 EF4_BUG_ON_PARANOID(i >= EF4_MAX_PHY_TESTS);
335 name = efx->phy_op->test_name(efx, i);
336 if (name == NULL)
337 break;
338
339 ef4_fill_test(n++, strings, data, &tests->phy_ext[i],
340 "phy", 0, name, NULL);
341 }
342 }
343
344 /* Loopback tests */
345 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
346 if (!(efx->loopback_modes & (1 << mode)))
347 continue;
348 n = ef4_fill_loopback_test(efx,
349 &tests->loopback[mode], mode, n,
350 strings, data);
351 }
352
353 return n;
354 }
355
ef4_describe_per_queue_stats(struct ef4_nic * efx,u8 * strings)356 static size_t ef4_describe_per_queue_stats(struct ef4_nic *efx, u8 *strings)
357 {
358 size_t n_stats = 0;
359 struct ef4_channel *channel;
360
361 ef4_for_each_channel(channel, efx) {
362 if (ef4_channel_has_tx_queues(channel)) {
363 n_stats++;
364 if (strings != NULL) {
365 snprintf(strings, ETH_GSTRING_LEN,
366 "tx-%u.tx_packets",
367 channel->tx_queue[0].queue /
368 EF4_TXQ_TYPES);
369
370 strings += ETH_GSTRING_LEN;
371 }
372 }
373 }
374 ef4_for_each_channel(channel, efx) {
375 if (ef4_channel_has_rx_queue(channel)) {
376 n_stats++;
377 if (strings != NULL) {
378 snprintf(strings, ETH_GSTRING_LEN,
379 "rx-%d.rx_packets", channel->channel);
380 strings += ETH_GSTRING_LEN;
381 }
382 }
383 }
384 return n_stats;
385 }
386
ef4_ethtool_get_sset_count(struct net_device * net_dev,int string_set)387 static int ef4_ethtool_get_sset_count(struct net_device *net_dev,
388 int string_set)
389 {
390 struct ef4_nic *efx = netdev_priv(net_dev);
391
392 switch (string_set) {
393 case ETH_SS_STATS:
394 return efx->type->describe_stats(efx, NULL) +
395 EF4_ETHTOOL_SW_STAT_COUNT +
396 ef4_describe_per_queue_stats(efx, NULL);
397 case ETH_SS_TEST:
398 return ef4_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
399 default:
400 return -EINVAL;
401 }
402 }
403
ef4_ethtool_get_strings(struct net_device * net_dev,u32 string_set,u8 * strings)404 static void ef4_ethtool_get_strings(struct net_device *net_dev,
405 u32 string_set, u8 *strings)
406 {
407 struct ef4_nic *efx = netdev_priv(net_dev);
408 int i;
409
410 switch (string_set) {
411 case ETH_SS_STATS:
412 strings += (efx->type->describe_stats(efx, strings) *
413 ETH_GSTRING_LEN);
414 for (i = 0; i < EF4_ETHTOOL_SW_STAT_COUNT; i++)
415 strscpy(strings + i * ETH_GSTRING_LEN,
416 ef4_sw_stat_desc[i].name, ETH_GSTRING_LEN);
417 strings += EF4_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;
418 strings += (ef4_describe_per_queue_stats(efx, strings) *
419 ETH_GSTRING_LEN);
420 break;
421 case ETH_SS_TEST:
422 ef4_ethtool_fill_self_tests(efx, NULL, strings, NULL);
423 break;
424 default:
425 /* No other string sets */
426 break;
427 }
428 }
429
ef4_ethtool_get_stats(struct net_device * net_dev,struct ethtool_stats * stats,u64 * data)430 static void ef4_ethtool_get_stats(struct net_device *net_dev,
431 struct ethtool_stats *stats,
432 u64 *data)
433 {
434 struct ef4_nic *efx = netdev_priv(net_dev);
435 const struct ef4_sw_stat_desc *stat;
436 struct ef4_channel *channel;
437 struct ef4_tx_queue *tx_queue;
438 struct ef4_rx_queue *rx_queue;
439 int i;
440
441 spin_lock_bh(&efx->stats_lock);
442
443 /* Get NIC statistics */
444 data += efx->type->update_stats(efx, data, NULL);
445
446 /* Get software statistics */
447 for (i = 0; i < EF4_ETHTOOL_SW_STAT_COUNT; i++) {
448 stat = &ef4_sw_stat_desc[i];
449 switch (stat->source) {
450 case EF4_ETHTOOL_STAT_SOURCE_nic:
451 data[i] = stat->get_stat((void *)efx + stat->offset);
452 break;
453 case EF4_ETHTOOL_STAT_SOURCE_channel:
454 data[i] = 0;
455 ef4_for_each_channel(channel, efx)
456 data[i] += stat->get_stat((void *)channel +
457 stat->offset);
458 break;
459 case EF4_ETHTOOL_STAT_SOURCE_tx_queue:
460 data[i] = 0;
461 ef4_for_each_channel(channel, efx) {
462 ef4_for_each_channel_tx_queue(tx_queue, channel)
463 data[i] +=
464 stat->get_stat((void *)tx_queue
465 + stat->offset);
466 }
467 break;
468 }
469 }
470 data += EF4_ETHTOOL_SW_STAT_COUNT;
471
472 spin_unlock_bh(&efx->stats_lock);
473
474 ef4_for_each_channel(channel, efx) {
475 if (ef4_channel_has_tx_queues(channel)) {
476 *data = 0;
477 ef4_for_each_channel_tx_queue(tx_queue, channel) {
478 *data += tx_queue->tx_packets;
479 }
480 data++;
481 }
482 }
483 ef4_for_each_channel(channel, efx) {
484 if (ef4_channel_has_rx_queue(channel)) {
485 *data = 0;
486 ef4_for_each_channel_rx_queue(rx_queue, channel) {
487 *data += rx_queue->rx_packets;
488 }
489 data++;
490 }
491 }
492 }
493
ef4_ethtool_self_test(struct net_device * net_dev,struct ethtool_test * test,u64 * data)494 static void ef4_ethtool_self_test(struct net_device *net_dev,
495 struct ethtool_test *test, u64 *data)
496 {
497 struct ef4_nic *efx = netdev_priv(net_dev);
498 struct ef4_self_tests *ef4_tests;
499 bool already_up;
500 int rc = -ENOMEM;
501
502 ef4_tests = kzalloc(sizeof(*ef4_tests), GFP_KERNEL);
503 if (!ef4_tests)
504 goto fail;
505
506 if (efx->state != STATE_READY) {
507 rc = -EBUSY;
508 goto out;
509 }
510
511 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
512 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
513
514 /* We need rx buffers and interrupts. */
515 already_up = (efx->net_dev->flags & IFF_UP);
516 if (!already_up) {
517 rc = dev_open(efx->net_dev, NULL);
518 if (rc) {
519 netif_err(efx, drv, efx->net_dev,
520 "failed opening device.\n");
521 goto out;
522 }
523 }
524
525 rc = ef4_selftest(efx, ef4_tests, test->flags);
526
527 if (!already_up)
528 dev_close(efx->net_dev);
529
530 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
531 rc == 0 ? "passed" : "failed",
532 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
533
534 out:
535 ef4_ethtool_fill_self_tests(efx, ef4_tests, NULL, data);
536 kfree(ef4_tests);
537 fail:
538 if (rc)
539 test->flags |= ETH_TEST_FL_FAILED;
540 }
541
542 /* Restart autonegotiation */
ef4_ethtool_nway_reset(struct net_device * net_dev)543 static int ef4_ethtool_nway_reset(struct net_device *net_dev)
544 {
545 struct ef4_nic *efx = netdev_priv(net_dev);
546
547 return mdio45_nway_restart(&efx->mdio);
548 }
549
550 /*
551 * Each channel has a single IRQ and moderation timer, started by any
552 * completion (or other event). Unless the module parameter
553 * separate_tx_channels is set, IRQs and moderation are therefore
554 * shared between RX and TX completions. In this case, when RX IRQ
555 * moderation is explicitly changed then TX IRQ moderation is
556 * automatically changed too, but otherwise we fail if the two values
557 * are requested to be different.
558 *
559 * The hardware does not support a limit on the number of completions
560 * before an IRQ, so we do not use the max_frames fields. We should
561 * report and require that max_frames == (usecs != 0), but this would
562 * invalidate existing user documentation.
563 *
564 * The hardware does not have distinct settings for interrupt
565 * moderation while the previous IRQ is being handled, so we should
566 * not use the 'irq' fields. However, an earlier developer
567 * misunderstood the meaning of the 'irq' fields and the driver did
568 * not support the standard fields. To avoid invalidating existing
569 * user documentation, we report and accept changes through either the
570 * standard or 'irq' fields. If both are changed at the same time, we
571 * prefer the standard field.
572 *
573 * We implement adaptive IRQ moderation, but use a different algorithm
574 * from that assumed in the definition of struct ethtool_coalesce.
575 * Therefore we do not use any of the adaptive moderation parameters
576 * in it.
577 */
578
ef4_ethtool_get_coalesce(struct net_device * net_dev,struct ethtool_coalesce * coalesce,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)579 static int ef4_ethtool_get_coalesce(struct net_device *net_dev,
580 struct ethtool_coalesce *coalesce,
581 struct kernel_ethtool_coalesce *kernel_coal,
582 struct netlink_ext_ack *extack)
583 {
584 struct ef4_nic *efx = netdev_priv(net_dev);
585 unsigned int tx_usecs, rx_usecs;
586 bool rx_adaptive;
587
588 ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);
589
590 coalesce->tx_coalesce_usecs = tx_usecs;
591 coalesce->tx_coalesce_usecs_irq = tx_usecs;
592 coalesce->rx_coalesce_usecs = rx_usecs;
593 coalesce->rx_coalesce_usecs_irq = rx_usecs;
594 coalesce->use_adaptive_rx_coalesce = rx_adaptive;
595
596 return 0;
597 }
598
ef4_ethtool_set_coalesce(struct net_device * net_dev,struct ethtool_coalesce * coalesce,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)599 static int ef4_ethtool_set_coalesce(struct net_device *net_dev,
600 struct ethtool_coalesce *coalesce,
601 struct kernel_ethtool_coalesce *kernel_coal,
602 struct netlink_ext_ack *extack)
603 {
604 struct ef4_nic *efx = netdev_priv(net_dev);
605 struct ef4_channel *channel;
606 unsigned int tx_usecs, rx_usecs;
607 bool adaptive, rx_may_override_tx;
608 int rc;
609
610 ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);
611
612 if (coalesce->rx_coalesce_usecs != rx_usecs)
613 rx_usecs = coalesce->rx_coalesce_usecs;
614 else
615 rx_usecs = coalesce->rx_coalesce_usecs_irq;
616
617 adaptive = coalesce->use_adaptive_rx_coalesce;
618
619 /* If channels are shared, TX IRQ moderation can be quietly
620 * overridden unless it is changed from its old value.
621 */
622 rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs &&
623 coalesce->tx_coalesce_usecs_irq == tx_usecs);
624 if (coalesce->tx_coalesce_usecs != tx_usecs)
625 tx_usecs = coalesce->tx_coalesce_usecs;
626 else
627 tx_usecs = coalesce->tx_coalesce_usecs_irq;
628
629 rc = ef4_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
630 rx_may_override_tx);
631 if (rc != 0)
632 return rc;
633
634 ef4_for_each_channel(channel, efx)
635 efx->type->push_irq_moderation(channel);
636
637 return 0;
638 }
639
640 static void
ef4_ethtool_get_ringparam(struct net_device * net_dev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)641 ef4_ethtool_get_ringparam(struct net_device *net_dev,
642 struct ethtool_ringparam *ring,
643 struct kernel_ethtool_ringparam *kernel_ring,
644 struct netlink_ext_ack *extack)
645 {
646 struct ef4_nic *efx = netdev_priv(net_dev);
647
648 ring->rx_max_pending = EF4_MAX_DMAQ_SIZE;
649 ring->tx_max_pending = EF4_MAX_DMAQ_SIZE;
650 ring->rx_pending = efx->rxq_entries;
651 ring->tx_pending = efx->txq_entries;
652 }
653
654 static int
ef4_ethtool_set_ringparam(struct net_device * net_dev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)655 ef4_ethtool_set_ringparam(struct net_device *net_dev,
656 struct ethtool_ringparam *ring,
657 struct kernel_ethtool_ringparam *kernel_ring,
658 struct netlink_ext_ack *extack)
659 {
660 struct ef4_nic *efx = netdev_priv(net_dev);
661 u32 txq_entries;
662
663 if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
664 ring->rx_pending > EF4_MAX_DMAQ_SIZE ||
665 ring->tx_pending > EF4_MAX_DMAQ_SIZE)
666 return -EINVAL;
667
668 if (ring->rx_pending < EF4_RXQ_MIN_ENT) {
669 netif_err(efx, drv, efx->net_dev,
670 "RX queues cannot be smaller than %u\n",
671 EF4_RXQ_MIN_ENT);
672 return -EINVAL;
673 }
674
675 txq_entries = max(ring->tx_pending, EF4_TXQ_MIN_ENT(efx));
676 if (txq_entries != ring->tx_pending)
677 netif_warn(efx, drv, efx->net_dev,
678 "increasing TX queue size to minimum of %u\n",
679 txq_entries);
680
681 return ef4_realloc_channels(efx, ring->rx_pending, txq_entries);
682 }
683
ef4_ethtool_set_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)684 static int ef4_ethtool_set_pauseparam(struct net_device *net_dev,
685 struct ethtool_pauseparam *pause)
686 {
687 struct ef4_nic *efx = netdev_priv(net_dev);
688 u8 wanted_fc, old_fc;
689 u32 old_adv;
690 int rc = 0;
691
692 mutex_lock(&efx->mac_lock);
693
694 wanted_fc = ((pause->rx_pause ? EF4_FC_RX : 0) |
695 (pause->tx_pause ? EF4_FC_TX : 0) |
696 (pause->autoneg ? EF4_FC_AUTO : 0));
697
698 if ((wanted_fc & EF4_FC_TX) && !(wanted_fc & EF4_FC_RX)) {
699 netif_dbg(efx, drv, efx->net_dev,
700 "Flow control unsupported: tx ON rx OFF\n");
701 rc = -EINVAL;
702 goto out;
703 }
704
705 if ((wanted_fc & EF4_FC_AUTO) && !efx->link_advertising) {
706 netif_dbg(efx, drv, efx->net_dev,
707 "Autonegotiation is disabled\n");
708 rc = -EINVAL;
709 goto out;
710 }
711
712 /* Hook for Falcon bug 11482 workaround */
713 if (efx->type->prepare_enable_fc_tx &&
714 (wanted_fc & EF4_FC_TX) && !(efx->wanted_fc & EF4_FC_TX))
715 efx->type->prepare_enable_fc_tx(efx);
716
717 old_adv = efx->link_advertising;
718 old_fc = efx->wanted_fc;
719 ef4_link_set_wanted_fc(efx, wanted_fc);
720 if (efx->link_advertising != old_adv ||
721 (efx->wanted_fc ^ old_fc) & EF4_FC_AUTO) {
722 rc = efx->phy_op->reconfigure(efx);
723 if (rc) {
724 netif_err(efx, drv, efx->net_dev,
725 "Unable to advertise requested flow "
726 "control setting\n");
727 goto out;
728 }
729 }
730
731 /* Reconfigure the MAC. The PHY *may* generate a link state change event
732 * if the user just changed the advertised capabilities, but there's no
733 * harm doing this twice */
734 ef4_mac_reconfigure(efx);
735
736 out:
737 mutex_unlock(&efx->mac_lock);
738
739 return rc;
740 }
741
ef4_ethtool_get_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)742 static void ef4_ethtool_get_pauseparam(struct net_device *net_dev,
743 struct ethtool_pauseparam *pause)
744 {
745 struct ef4_nic *efx = netdev_priv(net_dev);
746
747 pause->rx_pause = !!(efx->wanted_fc & EF4_FC_RX);
748 pause->tx_pause = !!(efx->wanted_fc & EF4_FC_TX);
749 pause->autoneg = !!(efx->wanted_fc & EF4_FC_AUTO);
750 }
751
ef4_ethtool_get_wol(struct net_device * net_dev,struct ethtool_wolinfo * wol)752 static void ef4_ethtool_get_wol(struct net_device *net_dev,
753 struct ethtool_wolinfo *wol)
754 {
755 struct ef4_nic *efx = netdev_priv(net_dev);
756 return efx->type->get_wol(efx, wol);
757 }
758
759
ef4_ethtool_set_wol(struct net_device * net_dev,struct ethtool_wolinfo * wol)760 static int ef4_ethtool_set_wol(struct net_device *net_dev,
761 struct ethtool_wolinfo *wol)
762 {
763 struct ef4_nic *efx = netdev_priv(net_dev);
764 return efx->type->set_wol(efx, wol->wolopts);
765 }
766
ef4_ethtool_reset(struct net_device * net_dev,u32 * flags)767 static int ef4_ethtool_reset(struct net_device *net_dev, u32 *flags)
768 {
769 struct ef4_nic *efx = netdev_priv(net_dev);
770 int rc;
771
772 rc = efx->type->map_reset_flags(flags);
773 if (rc < 0)
774 return rc;
775
776 return ef4_reset(efx, rc);
777 }
778
779 /* MAC address mask including only I/G bit */
780 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
781
782 #define IP4_ADDR_FULL_MASK ((__force __be32)~0)
783 #define IP_PROTO_FULL_MASK 0xFF
784 #define PORT_FULL_MASK ((__force __be16)~0)
785 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
786
ip6_fill_mask(__be32 * mask)787 static inline void ip6_fill_mask(__be32 *mask)
788 {
789 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
790 }
791
ef4_ethtool_get_class_rule(struct ef4_nic * efx,struct ethtool_rx_flow_spec * rule)792 static int ef4_ethtool_get_class_rule(struct ef4_nic *efx,
793 struct ethtool_rx_flow_spec *rule)
794 {
795 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
796 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
797 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
798 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
799 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
800 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
801 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
802 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
803 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
804 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
805 struct ef4_filter_spec spec;
806 int rc;
807
808 rc = ef4_filter_get_filter_safe(efx, EF4_FILTER_PRI_MANUAL,
809 rule->location, &spec);
810 if (rc)
811 return rc;
812
813 if (spec.dmaq_id == EF4_FILTER_RX_DMAQ_ID_DROP)
814 rule->ring_cookie = RX_CLS_FLOW_DISC;
815 else
816 rule->ring_cookie = spec.dmaq_id;
817
818 if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) &&
819 spec.ether_type == htons(ETH_P_IP) &&
820 (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) &&
821 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
822 !(spec.match_flags &
823 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
824 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
825 EF4_FILTER_MATCH_IP_PROTO |
826 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) {
827 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
828 TCP_V4_FLOW : UDP_V4_FLOW);
829 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
830 ip_entry->ip4dst = spec.loc_host[0];
831 ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
832 }
833 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
834 ip_entry->ip4src = spec.rem_host[0];
835 ip_mask->ip4src = IP4_ADDR_FULL_MASK;
836 }
837 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) {
838 ip_entry->pdst = spec.loc_port;
839 ip_mask->pdst = PORT_FULL_MASK;
840 }
841 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) {
842 ip_entry->psrc = spec.rem_port;
843 ip_mask->psrc = PORT_FULL_MASK;
844 }
845 } else if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) &&
846 spec.ether_type == htons(ETH_P_IPV6) &&
847 (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) &&
848 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
849 !(spec.match_flags &
850 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
851 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
852 EF4_FILTER_MATCH_IP_PROTO |
853 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) {
854 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
855 TCP_V6_FLOW : UDP_V6_FLOW);
856 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
857 memcpy(ip6_entry->ip6dst, spec.loc_host,
858 sizeof(ip6_entry->ip6dst));
859 ip6_fill_mask(ip6_mask->ip6dst);
860 }
861 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
862 memcpy(ip6_entry->ip6src, spec.rem_host,
863 sizeof(ip6_entry->ip6src));
864 ip6_fill_mask(ip6_mask->ip6src);
865 }
866 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) {
867 ip6_entry->pdst = spec.loc_port;
868 ip6_mask->pdst = PORT_FULL_MASK;
869 }
870 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) {
871 ip6_entry->psrc = spec.rem_port;
872 ip6_mask->psrc = PORT_FULL_MASK;
873 }
874 } else if (!(spec.match_flags &
875 ~(EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG |
876 EF4_FILTER_MATCH_REM_MAC | EF4_FILTER_MATCH_ETHER_TYPE |
877 EF4_FILTER_MATCH_OUTER_VID))) {
878 rule->flow_type = ETHER_FLOW;
879 if (spec.match_flags &
880 (EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG)) {
881 ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
882 if (spec.match_flags & EF4_FILTER_MATCH_LOC_MAC)
883 eth_broadcast_addr(mac_mask->h_dest);
884 else
885 ether_addr_copy(mac_mask->h_dest,
886 mac_addr_ig_mask);
887 }
888 if (spec.match_flags & EF4_FILTER_MATCH_REM_MAC) {
889 ether_addr_copy(mac_entry->h_source, spec.rem_mac);
890 eth_broadcast_addr(mac_mask->h_source);
891 }
892 if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) {
893 mac_entry->h_proto = spec.ether_type;
894 mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
895 }
896 } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE &&
897 spec.ether_type == htons(ETH_P_IP) &&
898 !(spec.match_flags &
899 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
900 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
901 EF4_FILTER_MATCH_IP_PROTO))) {
902 rule->flow_type = IPV4_USER_FLOW;
903 uip_entry->ip_ver = ETH_RX_NFC_IP4;
904 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) {
905 uip_mask->proto = IP_PROTO_FULL_MASK;
906 uip_entry->proto = spec.ip_proto;
907 }
908 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
909 uip_entry->ip4dst = spec.loc_host[0];
910 uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
911 }
912 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
913 uip_entry->ip4src = spec.rem_host[0];
914 uip_mask->ip4src = IP4_ADDR_FULL_MASK;
915 }
916 } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE &&
917 spec.ether_type == htons(ETH_P_IPV6) &&
918 !(spec.match_flags &
919 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
920 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
921 EF4_FILTER_MATCH_IP_PROTO))) {
922 rule->flow_type = IPV6_USER_FLOW;
923 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) {
924 uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
925 uip6_entry->l4_proto = spec.ip_proto;
926 }
927 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
928 memcpy(uip6_entry->ip6dst, spec.loc_host,
929 sizeof(uip6_entry->ip6dst));
930 ip6_fill_mask(uip6_mask->ip6dst);
931 }
932 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
933 memcpy(uip6_entry->ip6src, spec.rem_host,
934 sizeof(uip6_entry->ip6src));
935 ip6_fill_mask(uip6_mask->ip6src);
936 }
937 } else {
938 /* The above should handle all filters that we insert */
939 WARN_ON(1);
940 return -EINVAL;
941 }
942
943 if (spec.match_flags & EF4_FILTER_MATCH_OUTER_VID) {
944 rule->flow_type |= FLOW_EXT;
945 rule->h_ext.vlan_tci = spec.outer_vid;
946 rule->m_ext.vlan_tci = htons(0xfff);
947 }
948
949 return rc;
950 }
951
952 static int
ef4_ethtool_get_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * info,u32 * rule_locs)953 ef4_ethtool_get_rxnfc(struct net_device *net_dev,
954 struct ethtool_rxnfc *info, u32 *rule_locs)
955 {
956 struct ef4_nic *efx = netdev_priv(net_dev);
957
958 switch (info->cmd) {
959 case ETHTOOL_GRXRINGS:
960 info->data = efx->n_rx_channels;
961 return 0;
962
963 case ETHTOOL_GRXFH: {
964 unsigned min_revision = 0;
965
966 info->data = 0;
967 switch (info->flow_type) {
968 case TCP_V4_FLOW:
969 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
970 fallthrough;
971 case UDP_V4_FLOW:
972 case SCTP_V4_FLOW:
973 case AH_ESP_V4_FLOW:
974 case IPV4_FLOW:
975 info->data |= RXH_IP_SRC | RXH_IP_DST;
976 min_revision = EF4_REV_FALCON_B0;
977 break;
978 default:
979 break;
980 }
981 if (ef4_nic_rev(efx) < min_revision)
982 info->data = 0;
983 return 0;
984 }
985
986 case ETHTOOL_GRXCLSRLCNT:
987 info->data = ef4_filter_get_rx_id_limit(efx);
988 if (info->data == 0)
989 return -EOPNOTSUPP;
990 info->data |= RX_CLS_LOC_SPECIAL;
991 info->rule_cnt =
992 ef4_filter_count_rx_used(efx, EF4_FILTER_PRI_MANUAL);
993 return 0;
994
995 case ETHTOOL_GRXCLSRULE:
996 if (ef4_filter_get_rx_id_limit(efx) == 0)
997 return -EOPNOTSUPP;
998 return ef4_ethtool_get_class_rule(efx, &info->fs);
999
1000 case ETHTOOL_GRXCLSRLALL: {
1001 s32 rc;
1002 info->data = ef4_filter_get_rx_id_limit(efx);
1003 if (info->data == 0)
1004 return -EOPNOTSUPP;
1005 rc = ef4_filter_get_rx_ids(efx, EF4_FILTER_PRI_MANUAL,
1006 rule_locs, info->rule_cnt);
1007 if (rc < 0)
1008 return rc;
1009 info->rule_cnt = rc;
1010 return 0;
1011 }
1012
1013 default:
1014 return -EOPNOTSUPP;
1015 }
1016 }
1017
ip6_mask_is_full(__be32 mask[4])1018 static inline bool ip6_mask_is_full(__be32 mask[4])
1019 {
1020 return !~(mask[0] & mask[1] & mask[2] & mask[3]);
1021 }
1022
ip6_mask_is_empty(__be32 mask[4])1023 static inline bool ip6_mask_is_empty(__be32 mask[4])
1024 {
1025 return !(mask[0] | mask[1] | mask[2] | mask[3]);
1026 }
1027
ef4_ethtool_set_class_rule(struct ef4_nic * efx,struct ethtool_rx_flow_spec * rule)1028 static int ef4_ethtool_set_class_rule(struct ef4_nic *efx,
1029 struct ethtool_rx_flow_spec *rule)
1030 {
1031 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
1032 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
1033 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
1034 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
1035 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
1036 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
1037 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
1038 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
1039 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
1040 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
1041 struct ef4_filter_spec spec;
1042 int rc;
1043
1044 /* Check that user wants us to choose the location */
1045 if (rule->location != RX_CLS_LOC_ANY)
1046 return -EINVAL;
1047
1048 /* Range-check ring_cookie */
1049 if (rule->ring_cookie >= efx->n_rx_channels &&
1050 rule->ring_cookie != RX_CLS_FLOW_DISC)
1051 return -EINVAL;
1052
1053 /* Check for unsupported extensions */
1054 if ((rule->flow_type & FLOW_EXT) &&
1055 (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
1056 rule->m_ext.data[1]))
1057 return -EINVAL;
1058
1059 ef4_filter_init_rx(&spec, EF4_FILTER_PRI_MANUAL,
1060 efx->rx_scatter ? EF4_FILTER_FLAG_RX_SCATTER : 0,
1061 (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
1062 EF4_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
1063
1064 switch (rule->flow_type & ~FLOW_EXT) {
1065 case TCP_V4_FLOW:
1066 case UDP_V4_FLOW:
1067 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE |
1068 EF4_FILTER_MATCH_IP_PROTO);
1069 spec.ether_type = htons(ETH_P_IP);
1070 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ?
1071 IPPROTO_TCP : IPPROTO_UDP);
1072 if (ip_mask->ip4dst) {
1073 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1074 return -EINVAL;
1075 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1076 spec.loc_host[0] = ip_entry->ip4dst;
1077 }
1078 if (ip_mask->ip4src) {
1079 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
1080 return -EINVAL;
1081 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1082 spec.rem_host[0] = ip_entry->ip4src;
1083 }
1084 if (ip_mask->pdst) {
1085 if (ip_mask->pdst != PORT_FULL_MASK)
1086 return -EINVAL;
1087 spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT;
1088 spec.loc_port = ip_entry->pdst;
1089 }
1090 if (ip_mask->psrc) {
1091 if (ip_mask->psrc != PORT_FULL_MASK)
1092 return -EINVAL;
1093 spec.match_flags |= EF4_FILTER_MATCH_REM_PORT;
1094 spec.rem_port = ip_entry->psrc;
1095 }
1096 if (ip_mask->tos)
1097 return -EINVAL;
1098 break;
1099
1100 case TCP_V6_FLOW:
1101 case UDP_V6_FLOW:
1102 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE |
1103 EF4_FILTER_MATCH_IP_PROTO);
1104 spec.ether_type = htons(ETH_P_IPV6);
1105 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V6_FLOW ?
1106 IPPROTO_TCP : IPPROTO_UDP);
1107 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1108 if (!ip6_mask_is_full(ip6_mask->ip6dst))
1109 return -EINVAL;
1110 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1111 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1112 }
1113 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1114 if (!ip6_mask_is_full(ip6_mask->ip6src))
1115 return -EINVAL;
1116 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1117 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1118 }
1119 if (ip6_mask->pdst) {
1120 if (ip6_mask->pdst != PORT_FULL_MASK)
1121 return -EINVAL;
1122 spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT;
1123 spec.loc_port = ip6_entry->pdst;
1124 }
1125 if (ip6_mask->psrc) {
1126 if (ip6_mask->psrc != PORT_FULL_MASK)
1127 return -EINVAL;
1128 spec.match_flags |= EF4_FILTER_MATCH_REM_PORT;
1129 spec.rem_port = ip6_entry->psrc;
1130 }
1131 if (ip6_mask->tclass)
1132 return -EINVAL;
1133 break;
1134
1135 case IPV4_USER_FLOW:
1136 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1137 uip_entry->ip_ver != ETH_RX_NFC_IP4)
1138 return -EINVAL;
1139 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE;
1140 spec.ether_type = htons(ETH_P_IP);
1141 if (uip_mask->ip4dst) {
1142 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1143 return -EINVAL;
1144 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1145 spec.loc_host[0] = uip_entry->ip4dst;
1146 }
1147 if (uip_mask->ip4src) {
1148 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1149 return -EINVAL;
1150 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1151 spec.rem_host[0] = uip_entry->ip4src;
1152 }
1153 if (uip_mask->proto) {
1154 if (uip_mask->proto != IP_PROTO_FULL_MASK)
1155 return -EINVAL;
1156 spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO;
1157 spec.ip_proto = uip_entry->proto;
1158 }
1159 break;
1160
1161 case IPV6_USER_FLOW:
1162 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1163 return -EINVAL;
1164 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE;
1165 spec.ether_type = htons(ETH_P_IPV6);
1166 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1167 if (!ip6_mask_is_full(uip6_mask->ip6dst))
1168 return -EINVAL;
1169 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1170 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1171 }
1172 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1173 if (!ip6_mask_is_full(uip6_mask->ip6src))
1174 return -EINVAL;
1175 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1176 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1177 }
1178 if (uip6_mask->l4_proto) {
1179 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1180 return -EINVAL;
1181 spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO;
1182 spec.ip_proto = uip6_entry->l4_proto;
1183 }
1184 break;
1185
1186 case ETHER_FLOW:
1187 if (!is_zero_ether_addr(mac_mask->h_dest)) {
1188 if (ether_addr_equal(mac_mask->h_dest,
1189 mac_addr_ig_mask))
1190 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC_IG;
1191 else if (is_broadcast_ether_addr(mac_mask->h_dest))
1192 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC;
1193 else
1194 return -EINVAL;
1195 ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1196 }
1197 if (!is_zero_ether_addr(mac_mask->h_source)) {
1198 if (!is_broadcast_ether_addr(mac_mask->h_source))
1199 return -EINVAL;
1200 spec.match_flags |= EF4_FILTER_MATCH_REM_MAC;
1201 ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1202 }
1203 if (mac_mask->h_proto) {
1204 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1205 return -EINVAL;
1206 spec.match_flags |= EF4_FILTER_MATCH_ETHER_TYPE;
1207 spec.ether_type = mac_entry->h_proto;
1208 }
1209 break;
1210
1211 default:
1212 return -EINVAL;
1213 }
1214
1215 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1216 if (rule->m_ext.vlan_tci != htons(0xfff))
1217 return -EINVAL;
1218 spec.match_flags |= EF4_FILTER_MATCH_OUTER_VID;
1219 spec.outer_vid = rule->h_ext.vlan_tci;
1220 }
1221
1222 rc = ef4_filter_insert_filter(efx, &spec, true);
1223 if (rc < 0)
1224 return rc;
1225
1226 rule->location = rc;
1227 return 0;
1228 }
1229
ef4_ethtool_set_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * info)1230 static int ef4_ethtool_set_rxnfc(struct net_device *net_dev,
1231 struct ethtool_rxnfc *info)
1232 {
1233 struct ef4_nic *efx = netdev_priv(net_dev);
1234
1235 if (ef4_filter_get_rx_id_limit(efx) == 0)
1236 return -EOPNOTSUPP;
1237
1238 switch (info->cmd) {
1239 case ETHTOOL_SRXCLSRLINS:
1240 return ef4_ethtool_set_class_rule(efx, &info->fs);
1241
1242 case ETHTOOL_SRXCLSRLDEL:
1243 return ef4_filter_remove_id_safe(efx, EF4_FILTER_PRI_MANUAL,
1244 info->fs.location);
1245
1246 default:
1247 return -EOPNOTSUPP;
1248 }
1249 }
1250
ef4_ethtool_get_rxfh_indir_size(struct net_device * net_dev)1251 static u32 ef4_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1252 {
1253 struct ef4_nic *efx = netdev_priv(net_dev);
1254
1255 return ((ef4_nic_rev(efx) < EF4_REV_FALCON_B0 ||
1256 efx->n_rx_channels == 1) ?
1257 0 : ARRAY_SIZE(efx->rx_indir_table));
1258 }
1259
ef4_ethtool_get_rxfh(struct net_device * net_dev,u32 * indir,u8 * key,u8 * hfunc)1260 static int ef4_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key,
1261 u8 *hfunc)
1262 {
1263 struct ef4_nic *efx = netdev_priv(net_dev);
1264
1265 if (hfunc)
1266 *hfunc = ETH_RSS_HASH_TOP;
1267 if (indir)
1268 memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table));
1269 return 0;
1270 }
1271
ef4_ethtool_set_rxfh(struct net_device * net_dev,const u32 * indir,const u8 * key,const u8 hfunc)1272 static int ef4_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir,
1273 const u8 *key, const u8 hfunc)
1274 {
1275 struct ef4_nic *efx = netdev_priv(net_dev);
1276
1277 /* We do not allow change in unsupported parameters */
1278 if (key ||
1279 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1280 return -EOPNOTSUPP;
1281 if (!indir)
1282 return 0;
1283
1284 return efx->type->rx_push_rss_config(efx, true, indir);
1285 }
1286
ef4_ethtool_get_module_eeprom(struct net_device * net_dev,struct ethtool_eeprom * ee,u8 * data)1287 static int ef4_ethtool_get_module_eeprom(struct net_device *net_dev,
1288 struct ethtool_eeprom *ee,
1289 u8 *data)
1290 {
1291 struct ef4_nic *efx = netdev_priv(net_dev);
1292 int ret;
1293
1294 if (!efx->phy_op || !efx->phy_op->get_module_eeprom)
1295 return -EOPNOTSUPP;
1296
1297 mutex_lock(&efx->mac_lock);
1298 ret = efx->phy_op->get_module_eeprom(efx, ee, data);
1299 mutex_unlock(&efx->mac_lock);
1300
1301 return ret;
1302 }
1303
ef4_ethtool_get_module_info(struct net_device * net_dev,struct ethtool_modinfo * modinfo)1304 static int ef4_ethtool_get_module_info(struct net_device *net_dev,
1305 struct ethtool_modinfo *modinfo)
1306 {
1307 struct ef4_nic *efx = netdev_priv(net_dev);
1308 int ret;
1309
1310 if (!efx->phy_op || !efx->phy_op->get_module_info)
1311 return -EOPNOTSUPP;
1312
1313 mutex_lock(&efx->mac_lock);
1314 ret = efx->phy_op->get_module_info(efx, modinfo);
1315 mutex_unlock(&efx->mac_lock);
1316
1317 return ret;
1318 }
1319
1320 const struct ethtool_ops ef4_ethtool_ops = {
1321 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1322 ETHTOOL_COALESCE_USECS_IRQ |
1323 ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
1324 .get_drvinfo = ef4_ethtool_get_drvinfo,
1325 .get_regs_len = ef4_ethtool_get_regs_len,
1326 .get_regs = ef4_ethtool_get_regs,
1327 .get_msglevel = ef4_ethtool_get_msglevel,
1328 .set_msglevel = ef4_ethtool_set_msglevel,
1329 .nway_reset = ef4_ethtool_nway_reset,
1330 .get_link = ethtool_op_get_link,
1331 .get_coalesce = ef4_ethtool_get_coalesce,
1332 .set_coalesce = ef4_ethtool_set_coalesce,
1333 .get_ringparam = ef4_ethtool_get_ringparam,
1334 .set_ringparam = ef4_ethtool_set_ringparam,
1335 .get_pauseparam = ef4_ethtool_get_pauseparam,
1336 .set_pauseparam = ef4_ethtool_set_pauseparam,
1337 .get_sset_count = ef4_ethtool_get_sset_count,
1338 .self_test = ef4_ethtool_self_test,
1339 .get_strings = ef4_ethtool_get_strings,
1340 .set_phys_id = ef4_ethtool_phys_id,
1341 .get_ethtool_stats = ef4_ethtool_get_stats,
1342 .get_wol = ef4_ethtool_get_wol,
1343 .set_wol = ef4_ethtool_set_wol,
1344 .reset = ef4_ethtool_reset,
1345 .get_rxnfc = ef4_ethtool_get_rxnfc,
1346 .set_rxnfc = ef4_ethtool_set_rxnfc,
1347 .get_rxfh_indir_size = ef4_ethtool_get_rxfh_indir_size,
1348 .get_rxfh = ef4_ethtool_get_rxfh,
1349 .set_rxfh = ef4_ethtool_set_rxfh,
1350 .get_module_info = ef4_ethtool_get_module_info,
1351 .get_module_eeprom = ef4_ethtool_get_module_eeprom,
1352 .get_link_ksettings = ef4_ethtool_get_link_ksettings,
1353 .set_link_ksettings = ef4_ethtool_set_link_ksettings,
1354 };
1355