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)
365 continue;
366
367 ethtool_sprintf(strings, "tx-%u.tx_packets",
368 channel->tx_queue[0].queue /
369 EF4_TXQ_TYPES);
370 }
371 }
372 ef4_for_each_channel(channel, efx) {
373 if (ef4_channel_has_rx_queue(channel)) {
374 n_stats++;
375 if (!strings)
376 continue;
377
378 ethtool_sprintf(strings, "rx-%d.rx_packets",
379 channel->channel);
380 }
381 }
382 return n_stats;
383 }
384
ef4_ethtool_get_sset_count(struct net_device * net_dev,int string_set)385 static int ef4_ethtool_get_sset_count(struct net_device *net_dev,
386 int string_set)
387 {
388 struct ef4_nic *efx = netdev_priv(net_dev);
389
390 switch (string_set) {
391 case ETH_SS_STATS:
392 return efx->type->describe_stats(efx, NULL) +
393 EF4_ETHTOOL_SW_STAT_COUNT +
394 ef4_describe_per_queue_stats(efx, NULL);
395 case ETH_SS_TEST:
396 return ef4_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
397 default:
398 return -EINVAL;
399 }
400 }
401
ef4_ethtool_get_strings(struct net_device * net_dev,u32 string_set,u8 * strings)402 static void ef4_ethtool_get_strings(struct net_device *net_dev,
403 u32 string_set, u8 *strings)
404 {
405 struct ef4_nic *efx = netdev_priv(net_dev);
406 int i;
407
408 switch (string_set) {
409 case ETH_SS_STATS:
410 efx->type->describe_stats(efx, &strings);
411 for (i = 0; i < EF4_ETHTOOL_SW_STAT_COUNT; i++)
412 ethtool_puts(&strings, ef4_sw_stat_desc[i].name);
413 ef4_describe_per_queue_stats(efx, &strings);
414 break;
415 case ETH_SS_TEST:
416 ef4_ethtool_fill_self_tests(efx, NULL, strings, NULL);
417 break;
418 default:
419 /* No other string sets */
420 break;
421 }
422 }
423
ef4_ethtool_get_stats(struct net_device * net_dev,struct ethtool_stats * stats,u64 * data)424 static void ef4_ethtool_get_stats(struct net_device *net_dev,
425 struct ethtool_stats *stats,
426 u64 *data)
427 {
428 struct ef4_nic *efx = netdev_priv(net_dev);
429 const struct ef4_sw_stat_desc *stat;
430 struct ef4_channel *channel;
431 struct ef4_tx_queue *tx_queue;
432 struct ef4_rx_queue *rx_queue;
433 int i;
434
435 spin_lock_bh(&efx->stats_lock);
436
437 /* Get NIC statistics */
438 data += efx->type->update_stats(efx, data, NULL);
439
440 /* Get software statistics */
441 for (i = 0; i < EF4_ETHTOOL_SW_STAT_COUNT; i++) {
442 stat = &ef4_sw_stat_desc[i];
443 switch (stat->source) {
444 case EF4_ETHTOOL_STAT_SOURCE_nic:
445 data[i] = stat->get_stat((void *)efx + stat->offset);
446 break;
447 case EF4_ETHTOOL_STAT_SOURCE_channel:
448 data[i] = 0;
449 ef4_for_each_channel(channel, efx)
450 data[i] += stat->get_stat((void *)channel +
451 stat->offset);
452 break;
453 case EF4_ETHTOOL_STAT_SOURCE_tx_queue:
454 data[i] = 0;
455 ef4_for_each_channel(channel, efx) {
456 ef4_for_each_channel_tx_queue(tx_queue, channel)
457 data[i] +=
458 stat->get_stat((void *)tx_queue
459 + stat->offset);
460 }
461 break;
462 }
463 }
464 data += EF4_ETHTOOL_SW_STAT_COUNT;
465
466 spin_unlock_bh(&efx->stats_lock);
467
468 ef4_for_each_channel(channel, efx) {
469 if (ef4_channel_has_tx_queues(channel)) {
470 *data = 0;
471 ef4_for_each_channel_tx_queue(tx_queue, channel) {
472 *data += tx_queue->tx_packets;
473 }
474 data++;
475 }
476 }
477 ef4_for_each_channel(channel, efx) {
478 if (ef4_channel_has_rx_queue(channel)) {
479 *data = 0;
480 ef4_for_each_channel_rx_queue(rx_queue, channel) {
481 *data += rx_queue->rx_packets;
482 }
483 data++;
484 }
485 }
486 }
487
ef4_ethtool_self_test(struct net_device * net_dev,struct ethtool_test * test,u64 * data)488 static void ef4_ethtool_self_test(struct net_device *net_dev,
489 struct ethtool_test *test, u64 *data)
490 {
491 struct ef4_nic *efx = netdev_priv(net_dev);
492 struct ef4_self_tests *ef4_tests;
493 bool already_up;
494 int rc = -ENOMEM;
495
496 ef4_tests = kzalloc(sizeof(*ef4_tests), GFP_KERNEL);
497 if (!ef4_tests)
498 goto fail;
499
500 if (efx->state != STATE_READY) {
501 rc = -EBUSY;
502 goto out;
503 }
504
505 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
506 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
507
508 /* We need rx buffers and interrupts. */
509 already_up = (efx->net_dev->flags & IFF_UP);
510 if (!already_up) {
511 rc = dev_open(efx->net_dev, NULL);
512 if (rc) {
513 netif_err(efx, drv, efx->net_dev,
514 "failed opening device.\n");
515 goto out;
516 }
517 }
518
519 rc = ef4_selftest(efx, ef4_tests, test->flags);
520
521 if (!already_up)
522 dev_close(efx->net_dev);
523
524 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
525 rc == 0 ? "passed" : "failed",
526 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
527
528 out:
529 ef4_ethtool_fill_self_tests(efx, ef4_tests, NULL, data);
530 kfree(ef4_tests);
531 fail:
532 if (rc)
533 test->flags |= ETH_TEST_FL_FAILED;
534 }
535
536 /* Restart autonegotiation */
ef4_ethtool_nway_reset(struct net_device * net_dev)537 static int ef4_ethtool_nway_reset(struct net_device *net_dev)
538 {
539 struct ef4_nic *efx = netdev_priv(net_dev);
540
541 return mdio45_nway_restart(&efx->mdio);
542 }
543
544 /*
545 * Each channel has a single IRQ and moderation timer, started by any
546 * completion (or other event). Unless the module parameter
547 * separate_tx_channels is set, IRQs and moderation are therefore
548 * shared between RX and TX completions. In this case, when RX IRQ
549 * moderation is explicitly changed then TX IRQ moderation is
550 * automatically changed too, but otherwise we fail if the two values
551 * are requested to be different.
552 *
553 * The hardware does not support a limit on the number of completions
554 * before an IRQ, so we do not use the max_frames fields. We should
555 * report and require that max_frames == (usecs != 0), but this would
556 * invalidate existing user documentation.
557 *
558 * The hardware does not have distinct settings for interrupt
559 * moderation while the previous IRQ is being handled, so we should
560 * not use the 'irq' fields. However, an earlier developer
561 * misunderstood the meaning of the 'irq' fields and the driver did
562 * not support the standard fields. To avoid invalidating existing
563 * user documentation, we report and accept changes through either the
564 * standard or 'irq' fields. If both are changed at the same time, we
565 * prefer the standard field.
566 *
567 * We implement adaptive IRQ moderation, but use a different algorithm
568 * from that assumed in the definition of struct ethtool_coalesce.
569 * Therefore we do not use any of the adaptive moderation parameters
570 * in it.
571 */
572
ef4_ethtool_get_coalesce(struct net_device * net_dev,struct ethtool_coalesce * coalesce,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)573 static int ef4_ethtool_get_coalesce(struct net_device *net_dev,
574 struct ethtool_coalesce *coalesce,
575 struct kernel_ethtool_coalesce *kernel_coal,
576 struct netlink_ext_ack *extack)
577 {
578 struct ef4_nic *efx = netdev_priv(net_dev);
579 unsigned int tx_usecs, rx_usecs;
580 bool rx_adaptive;
581
582 ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);
583
584 coalesce->tx_coalesce_usecs = tx_usecs;
585 coalesce->tx_coalesce_usecs_irq = tx_usecs;
586 coalesce->rx_coalesce_usecs = rx_usecs;
587 coalesce->rx_coalesce_usecs_irq = rx_usecs;
588 coalesce->use_adaptive_rx_coalesce = rx_adaptive;
589
590 return 0;
591 }
592
ef4_ethtool_set_coalesce(struct net_device * net_dev,struct ethtool_coalesce * coalesce,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)593 static int ef4_ethtool_set_coalesce(struct net_device *net_dev,
594 struct ethtool_coalesce *coalesce,
595 struct kernel_ethtool_coalesce *kernel_coal,
596 struct netlink_ext_ack *extack)
597 {
598 struct ef4_nic *efx = netdev_priv(net_dev);
599 struct ef4_channel *channel;
600 unsigned int tx_usecs, rx_usecs;
601 bool adaptive, rx_may_override_tx;
602 int rc;
603
604 ef4_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);
605
606 if (coalesce->rx_coalesce_usecs != rx_usecs)
607 rx_usecs = coalesce->rx_coalesce_usecs;
608 else
609 rx_usecs = coalesce->rx_coalesce_usecs_irq;
610
611 adaptive = coalesce->use_adaptive_rx_coalesce;
612
613 /* If channels are shared, TX IRQ moderation can be quietly
614 * overridden unless it is changed from its old value.
615 */
616 rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs &&
617 coalesce->tx_coalesce_usecs_irq == tx_usecs);
618 if (coalesce->tx_coalesce_usecs != tx_usecs)
619 tx_usecs = coalesce->tx_coalesce_usecs;
620 else
621 tx_usecs = coalesce->tx_coalesce_usecs_irq;
622
623 rc = ef4_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
624 rx_may_override_tx);
625 if (rc != 0)
626 return rc;
627
628 ef4_for_each_channel(channel, efx)
629 efx->type->push_irq_moderation(channel);
630
631 return 0;
632 }
633
634 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)635 ef4_ethtool_get_ringparam(struct net_device *net_dev,
636 struct ethtool_ringparam *ring,
637 struct kernel_ethtool_ringparam *kernel_ring,
638 struct netlink_ext_ack *extack)
639 {
640 struct ef4_nic *efx = netdev_priv(net_dev);
641
642 ring->rx_max_pending = EF4_MAX_DMAQ_SIZE;
643 ring->tx_max_pending = EF4_MAX_DMAQ_SIZE;
644 ring->rx_pending = efx->rxq_entries;
645 ring->tx_pending = efx->txq_entries;
646 }
647
648 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)649 ef4_ethtool_set_ringparam(struct net_device *net_dev,
650 struct ethtool_ringparam *ring,
651 struct kernel_ethtool_ringparam *kernel_ring,
652 struct netlink_ext_ack *extack)
653 {
654 struct ef4_nic *efx = netdev_priv(net_dev);
655 u32 txq_entries;
656
657 if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
658 ring->rx_pending > EF4_MAX_DMAQ_SIZE ||
659 ring->tx_pending > EF4_MAX_DMAQ_SIZE)
660 return -EINVAL;
661
662 if (ring->rx_pending < EF4_RXQ_MIN_ENT) {
663 netif_err(efx, drv, efx->net_dev,
664 "RX queues cannot be smaller than %u\n",
665 EF4_RXQ_MIN_ENT);
666 return -EINVAL;
667 }
668
669 txq_entries = max(ring->tx_pending, EF4_TXQ_MIN_ENT(efx));
670 if (txq_entries != ring->tx_pending)
671 netif_warn(efx, drv, efx->net_dev,
672 "increasing TX queue size to minimum of %u\n",
673 txq_entries);
674
675 return ef4_realloc_channels(efx, ring->rx_pending, txq_entries);
676 }
677
ef4_ethtool_set_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)678 static int ef4_ethtool_set_pauseparam(struct net_device *net_dev,
679 struct ethtool_pauseparam *pause)
680 {
681 struct ef4_nic *efx = netdev_priv(net_dev);
682 u8 wanted_fc, old_fc;
683 u32 old_adv;
684 int rc = 0;
685
686 mutex_lock(&efx->mac_lock);
687
688 wanted_fc = ((pause->rx_pause ? EF4_FC_RX : 0) |
689 (pause->tx_pause ? EF4_FC_TX : 0) |
690 (pause->autoneg ? EF4_FC_AUTO : 0));
691
692 if ((wanted_fc & EF4_FC_TX) && !(wanted_fc & EF4_FC_RX)) {
693 netif_dbg(efx, drv, efx->net_dev,
694 "Flow control unsupported: tx ON rx OFF\n");
695 rc = -EINVAL;
696 goto out;
697 }
698
699 if ((wanted_fc & EF4_FC_AUTO) && !efx->link_advertising) {
700 netif_dbg(efx, drv, efx->net_dev,
701 "Autonegotiation is disabled\n");
702 rc = -EINVAL;
703 goto out;
704 }
705
706 /* Hook for Falcon bug 11482 workaround */
707 if (efx->type->prepare_enable_fc_tx &&
708 (wanted_fc & EF4_FC_TX) && !(efx->wanted_fc & EF4_FC_TX))
709 efx->type->prepare_enable_fc_tx(efx);
710
711 old_adv = efx->link_advertising;
712 old_fc = efx->wanted_fc;
713 ef4_link_set_wanted_fc(efx, wanted_fc);
714 if (efx->link_advertising != old_adv ||
715 (efx->wanted_fc ^ old_fc) & EF4_FC_AUTO) {
716 rc = efx->phy_op->reconfigure(efx);
717 if (rc) {
718 netif_err(efx, drv, efx->net_dev,
719 "Unable to advertise requested flow "
720 "control setting\n");
721 goto out;
722 }
723 }
724
725 /* Reconfigure the MAC. The PHY *may* generate a link state change event
726 * if the user just changed the advertised capabilities, but there's no
727 * harm doing this twice */
728 ef4_mac_reconfigure(efx);
729
730 out:
731 mutex_unlock(&efx->mac_lock);
732
733 return rc;
734 }
735
ef4_ethtool_get_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)736 static void ef4_ethtool_get_pauseparam(struct net_device *net_dev,
737 struct ethtool_pauseparam *pause)
738 {
739 struct ef4_nic *efx = netdev_priv(net_dev);
740
741 pause->rx_pause = !!(efx->wanted_fc & EF4_FC_RX);
742 pause->tx_pause = !!(efx->wanted_fc & EF4_FC_TX);
743 pause->autoneg = !!(efx->wanted_fc & EF4_FC_AUTO);
744 }
745
ef4_ethtool_get_wol(struct net_device * net_dev,struct ethtool_wolinfo * wol)746 static void ef4_ethtool_get_wol(struct net_device *net_dev,
747 struct ethtool_wolinfo *wol)
748 {
749 struct ef4_nic *efx = netdev_priv(net_dev);
750 return efx->type->get_wol(efx, wol);
751 }
752
753
ef4_ethtool_set_wol(struct net_device * net_dev,struct ethtool_wolinfo * wol)754 static int ef4_ethtool_set_wol(struct net_device *net_dev,
755 struct ethtool_wolinfo *wol)
756 {
757 struct ef4_nic *efx = netdev_priv(net_dev);
758 return efx->type->set_wol(efx, wol->wolopts);
759 }
760
ef4_ethtool_reset(struct net_device * net_dev,u32 * flags)761 static int ef4_ethtool_reset(struct net_device *net_dev, u32 *flags)
762 {
763 struct ef4_nic *efx = netdev_priv(net_dev);
764 int rc;
765
766 rc = efx->type->map_reset_flags(flags);
767 if (rc < 0)
768 return rc;
769
770 return ef4_reset(efx, rc);
771 }
772
773 /* MAC address mask including only I/G bit */
774 static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};
775
776 #define IP4_ADDR_FULL_MASK ((__force __be32)~0)
777 #define IP_PROTO_FULL_MASK 0xFF
778 #define PORT_FULL_MASK ((__force __be16)~0)
779 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
780
ip6_fill_mask(__be32 * mask)781 static inline void ip6_fill_mask(__be32 *mask)
782 {
783 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;
784 }
785
ef4_ethtool_get_class_rule(struct ef4_nic * efx,struct ethtool_rx_flow_spec * rule)786 static int ef4_ethtool_get_class_rule(struct ef4_nic *efx,
787 struct ethtool_rx_flow_spec *rule)
788 {
789 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
790 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
791 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
792 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
793 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
794 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
795 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
796 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
797 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
798 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
799 struct ef4_filter_spec spec;
800 int rc;
801
802 rc = ef4_filter_get_filter_safe(efx, EF4_FILTER_PRI_MANUAL,
803 rule->location, &spec);
804 if (rc)
805 return rc;
806
807 if (spec.dmaq_id == EF4_FILTER_RX_DMAQ_ID_DROP)
808 rule->ring_cookie = RX_CLS_FLOW_DISC;
809 else
810 rule->ring_cookie = spec.dmaq_id;
811
812 if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) &&
813 spec.ether_type == htons(ETH_P_IP) &&
814 (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) &&
815 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
816 !(spec.match_flags &
817 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
818 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
819 EF4_FILTER_MATCH_IP_PROTO |
820 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) {
821 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
822 TCP_V4_FLOW : UDP_V4_FLOW);
823 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
824 ip_entry->ip4dst = spec.loc_host[0];
825 ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
826 }
827 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
828 ip_entry->ip4src = spec.rem_host[0];
829 ip_mask->ip4src = IP4_ADDR_FULL_MASK;
830 }
831 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) {
832 ip_entry->pdst = spec.loc_port;
833 ip_mask->pdst = PORT_FULL_MASK;
834 }
835 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) {
836 ip_entry->psrc = spec.rem_port;
837 ip_mask->psrc = PORT_FULL_MASK;
838 }
839 } else if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) &&
840 spec.ether_type == htons(ETH_P_IPV6) &&
841 (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) &&
842 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
843 !(spec.match_flags &
844 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
845 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
846 EF4_FILTER_MATCH_IP_PROTO |
847 EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) {
848 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
849 TCP_V6_FLOW : UDP_V6_FLOW);
850 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
851 memcpy(ip6_entry->ip6dst, spec.loc_host,
852 sizeof(ip6_entry->ip6dst));
853 ip6_fill_mask(ip6_mask->ip6dst);
854 }
855 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
856 memcpy(ip6_entry->ip6src, spec.rem_host,
857 sizeof(ip6_entry->ip6src));
858 ip6_fill_mask(ip6_mask->ip6src);
859 }
860 if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) {
861 ip6_entry->pdst = spec.loc_port;
862 ip6_mask->pdst = PORT_FULL_MASK;
863 }
864 if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) {
865 ip6_entry->psrc = spec.rem_port;
866 ip6_mask->psrc = PORT_FULL_MASK;
867 }
868 } else if (!(spec.match_flags &
869 ~(EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG |
870 EF4_FILTER_MATCH_REM_MAC | EF4_FILTER_MATCH_ETHER_TYPE |
871 EF4_FILTER_MATCH_OUTER_VID))) {
872 rule->flow_type = ETHER_FLOW;
873 if (spec.match_flags &
874 (EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG)) {
875 ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
876 if (spec.match_flags & EF4_FILTER_MATCH_LOC_MAC)
877 eth_broadcast_addr(mac_mask->h_dest);
878 else
879 ether_addr_copy(mac_mask->h_dest,
880 mac_addr_ig_mask);
881 }
882 if (spec.match_flags & EF4_FILTER_MATCH_REM_MAC) {
883 ether_addr_copy(mac_entry->h_source, spec.rem_mac);
884 eth_broadcast_addr(mac_mask->h_source);
885 }
886 if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) {
887 mac_entry->h_proto = spec.ether_type;
888 mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
889 }
890 } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE &&
891 spec.ether_type == htons(ETH_P_IP) &&
892 !(spec.match_flags &
893 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
894 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
895 EF4_FILTER_MATCH_IP_PROTO))) {
896 rule->flow_type = IPV4_USER_FLOW;
897 uip_entry->ip_ver = ETH_RX_NFC_IP4;
898 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) {
899 uip_mask->proto = IP_PROTO_FULL_MASK;
900 uip_entry->proto = spec.ip_proto;
901 }
902 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
903 uip_entry->ip4dst = spec.loc_host[0];
904 uip_mask->ip4dst = IP4_ADDR_FULL_MASK;
905 }
906 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
907 uip_entry->ip4src = spec.rem_host[0];
908 uip_mask->ip4src = IP4_ADDR_FULL_MASK;
909 }
910 } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE &&
911 spec.ether_type == htons(ETH_P_IPV6) &&
912 !(spec.match_flags &
913 ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID |
914 EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST |
915 EF4_FILTER_MATCH_IP_PROTO))) {
916 rule->flow_type = IPV6_USER_FLOW;
917 if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) {
918 uip6_mask->l4_proto = IP_PROTO_FULL_MASK;
919 uip6_entry->l4_proto = spec.ip_proto;
920 }
921 if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) {
922 memcpy(uip6_entry->ip6dst, spec.loc_host,
923 sizeof(uip6_entry->ip6dst));
924 ip6_fill_mask(uip6_mask->ip6dst);
925 }
926 if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) {
927 memcpy(uip6_entry->ip6src, spec.rem_host,
928 sizeof(uip6_entry->ip6src));
929 ip6_fill_mask(uip6_mask->ip6src);
930 }
931 } else {
932 /* The above should handle all filters that we insert */
933 WARN_ON(1);
934 return -EINVAL;
935 }
936
937 if (spec.match_flags & EF4_FILTER_MATCH_OUTER_VID) {
938 rule->flow_type |= FLOW_EXT;
939 rule->h_ext.vlan_tci = spec.outer_vid;
940 rule->m_ext.vlan_tci = htons(0xfff);
941 }
942
943 return rc;
944 }
945
946 static int
ef4_ethtool_get_rxfh_fields(struct net_device * net_dev,struct ethtool_rxfh_fields * info)947 ef4_ethtool_get_rxfh_fields(struct net_device *net_dev,
948 struct ethtool_rxfh_fields *info)
949 {
950 struct ef4_nic *efx = netdev_priv(net_dev);
951
952 info->data = 0;
953 /* Falcon A0 and A1 had a 4-tuple hash for TCP and UDP, but it was
954 * broken so we do not enable it.
955 * Falcon B0 adds a Toeplitz hash, 4-tuple for TCP and 2-tuple for
956 * other IPv4, including UDP.
957 * See falcon_init_rx_cfg().
958 */
959 if (ef4_nic_rev(efx) < EF4_REV_FALCON_B0)
960 return 0;
961 switch (info->flow_type) {
962 case TCP_V4_FLOW:
963 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
964 fallthrough;
965 case UDP_V4_FLOW:
966 case SCTP_V4_FLOW:
967 case AH_ESP_V4_FLOW:
968 case IPV4_FLOW:
969 info->data |= RXH_IP_SRC | RXH_IP_DST;
970 break;
971 default:
972 break;
973 }
974 return 0;
975 }
976
977 static int
ef4_ethtool_get_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * info,u32 * rule_locs)978 ef4_ethtool_get_rxnfc(struct net_device *net_dev,
979 struct ethtool_rxnfc *info, u32 *rule_locs)
980 {
981 struct ef4_nic *efx = netdev_priv(net_dev);
982
983 switch (info->cmd) {
984 case ETHTOOL_GRXRINGS:
985 info->data = efx->n_rx_channels;
986 return 0;
987
988 case ETHTOOL_GRXCLSRLCNT:
989 info->data = ef4_filter_get_rx_id_limit(efx);
990 if (info->data == 0)
991 return -EOPNOTSUPP;
992 info->data |= RX_CLS_LOC_SPECIAL;
993 info->rule_cnt =
994 ef4_filter_count_rx_used(efx, EF4_FILTER_PRI_MANUAL);
995 return 0;
996
997 case ETHTOOL_GRXCLSRULE:
998 if (ef4_filter_get_rx_id_limit(efx) == 0)
999 return -EOPNOTSUPP;
1000 return ef4_ethtool_get_class_rule(efx, &info->fs);
1001
1002 case ETHTOOL_GRXCLSRLALL: {
1003 s32 rc;
1004 info->data = ef4_filter_get_rx_id_limit(efx);
1005 if (info->data == 0)
1006 return -EOPNOTSUPP;
1007 rc = ef4_filter_get_rx_ids(efx, EF4_FILTER_PRI_MANUAL,
1008 rule_locs, info->rule_cnt);
1009 if (rc < 0)
1010 return rc;
1011 info->rule_cnt = rc;
1012 return 0;
1013 }
1014
1015 default:
1016 return -EOPNOTSUPP;
1017 }
1018 }
1019
ip6_mask_is_full(__be32 mask[4])1020 static inline bool ip6_mask_is_full(__be32 mask[4])
1021 {
1022 return !~(mask[0] & mask[1] & mask[2] & mask[3]);
1023 }
1024
ip6_mask_is_empty(__be32 mask[4])1025 static inline bool ip6_mask_is_empty(__be32 mask[4])
1026 {
1027 return !(mask[0] | mask[1] | mask[2] | mask[3]);
1028 }
1029
ef4_ethtool_set_class_rule(struct ef4_nic * efx,struct ethtool_rx_flow_spec * rule)1030 static int ef4_ethtool_set_class_rule(struct ef4_nic *efx,
1031 struct ethtool_rx_flow_spec *rule)
1032 {
1033 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;
1034 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;
1035 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;
1036 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;
1037 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;
1038 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;
1039 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;
1040 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;
1041 struct ethhdr *mac_entry = &rule->h_u.ether_spec;
1042 struct ethhdr *mac_mask = &rule->m_u.ether_spec;
1043 struct ef4_filter_spec spec;
1044 int rc;
1045
1046 /* Check that user wants us to choose the location */
1047 if (rule->location != RX_CLS_LOC_ANY)
1048 return -EINVAL;
1049
1050 /* Range-check ring_cookie */
1051 if (rule->ring_cookie >= efx->n_rx_channels &&
1052 rule->ring_cookie != RX_CLS_FLOW_DISC)
1053 return -EINVAL;
1054
1055 /* Check for unsupported extensions */
1056 if ((rule->flow_type & FLOW_EXT) &&
1057 (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||
1058 rule->m_ext.data[1]))
1059 return -EINVAL;
1060
1061 ef4_filter_init_rx(&spec, EF4_FILTER_PRI_MANUAL,
1062 efx->rx_scatter ? EF4_FILTER_FLAG_RX_SCATTER : 0,
1063 (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
1064 EF4_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
1065
1066 switch (rule->flow_type & ~FLOW_EXT) {
1067 case TCP_V4_FLOW:
1068 case UDP_V4_FLOW:
1069 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE |
1070 EF4_FILTER_MATCH_IP_PROTO);
1071 spec.ether_type = htons(ETH_P_IP);
1072 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ?
1073 IPPROTO_TCP : IPPROTO_UDP);
1074 if (ip_mask->ip4dst) {
1075 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1076 return -EINVAL;
1077 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1078 spec.loc_host[0] = ip_entry->ip4dst;
1079 }
1080 if (ip_mask->ip4src) {
1081 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
1082 return -EINVAL;
1083 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1084 spec.rem_host[0] = ip_entry->ip4src;
1085 }
1086 if (ip_mask->pdst) {
1087 if (ip_mask->pdst != PORT_FULL_MASK)
1088 return -EINVAL;
1089 spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT;
1090 spec.loc_port = ip_entry->pdst;
1091 }
1092 if (ip_mask->psrc) {
1093 if (ip_mask->psrc != PORT_FULL_MASK)
1094 return -EINVAL;
1095 spec.match_flags |= EF4_FILTER_MATCH_REM_PORT;
1096 spec.rem_port = ip_entry->psrc;
1097 }
1098 if (ip_mask->tos)
1099 return -EINVAL;
1100 break;
1101
1102 case TCP_V6_FLOW:
1103 case UDP_V6_FLOW:
1104 spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE |
1105 EF4_FILTER_MATCH_IP_PROTO);
1106 spec.ether_type = htons(ETH_P_IPV6);
1107 spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V6_FLOW ?
1108 IPPROTO_TCP : IPPROTO_UDP);
1109 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {
1110 if (!ip6_mask_is_full(ip6_mask->ip6dst))
1111 return -EINVAL;
1112 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1113 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));
1114 }
1115 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {
1116 if (!ip6_mask_is_full(ip6_mask->ip6src))
1117 return -EINVAL;
1118 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1119 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));
1120 }
1121 if (ip6_mask->pdst) {
1122 if (ip6_mask->pdst != PORT_FULL_MASK)
1123 return -EINVAL;
1124 spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT;
1125 spec.loc_port = ip6_entry->pdst;
1126 }
1127 if (ip6_mask->psrc) {
1128 if (ip6_mask->psrc != PORT_FULL_MASK)
1129 return -EINVAL;
1130 spec.match_flags |= EF4_FILTER_MATCH_REM_PORT;
1131 spec.rem_port = ip6_entry->psrc;
1132 }
1133 if (ip6_mask->tclass)
1134 return -EINVAL;
1135 break;
1136
1137 case IPV4_USER_FLOW:
1138 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||
1139 uip_entry->ip_ver != ETH_RX_NFC_IP4)
1140 return -EINVAL;
1141 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE;
1142 spec.ether_type = htons(ETH_P_IP);
1143 if (uip_mask->ip4dst) {
1144 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)
1145 return -EINVAL;
1146 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1147 spec.loc_host[0] = uip_entry->ip4dst;
1148 }
1149 if (uip_mask->ip4src) {
1150 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)
1151 return -EINVAL;
1152 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1153 spec.rem_host[0] = uip_entry->ip4src;
1154 }
1155 if (uip_mask->proto) {
1156 if (uip_mask->proto != IP_PROTO_FULL_MASK)
1157 return -EINVAL;
1158 spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO;
1159 spec.ip_proto = uip_entry->proto;
1160 }
1161 break;
1162
1163 case IPV6_USER_FLOW:
1164 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)
1165 return -EINVAL;
1166 spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE;
1167 spec.ether_type = htons(ETH_P_IPV6);
1168 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {
1169 if (!ip6_mask_is_full(uip6_mask->ip6dst))
1170 return -EINVAL;
1171 spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST;
1172 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));
1173 }
1174 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {
1175 if (!ip6_mask_is_full(uip6_mask->ip6src))
1176 return -EINVAL;
1177 spec.match_flags |= EF4_FILTER_MATCH_REM_HOST;
1178 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));
1179 }
1180 if (uip6_mask->l4_proto) {
1181 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)
1182 return -EINVAL;
1183 spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO;
1184 spec.ip_proto = uip6_entry->l4_proto;
1185 }
1186 break;
1187
1188 case ETHER_FLOW:
1189 if (!is_zero_ether_addr(mac_mask->h_dest)) {
1190 if (ether_addr_equal(mac_mask->h_dest,
1191 mac_addr_ig_mask))
1192 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC_IG;
1193 else if (is_broadcast_ether_addr(mac_mask->h_dest))
1194 spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC;
1195 else
1196 return -EINVAL;
1197 ether_addr_copy(spec.loc_mac, mac_entry->h_dest);
1198 }
1199 if (!is_zero_ether_addr(mac_mask->h_source)) {
1200 if (!is_broadcast_ether_addr(mac_mask->h_source))
1201 return -EINVAL;
1202 spec.match_flags |= EF4_FILTER_MATCH_REM_MAC;
1203 ether_addr_copy(spec.rem_mac, mac_entry->h_source);
1204 }
1205 if (mac_mask->h_proto) {
1206 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
1207 return -EINVAL;
1208 spec.match_flags |= EF4_FILTER_MATCH_ETHER_TYPE;
1209 spec.ether_type = mac_entry->h_proto;
1210 }
1211 break;
1212
1213 default:
1214 return -EINVAL;
1215 }
1216
1217 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
1218 if (rule->m_ext.vlan_tci != htons(0xfff))
1219 return -EINVAL;
1220 spec.match_flags |= EF4_FILTER_MATCH_OUTER_VID;
1221 spec.outer_vid = rule->h_ext.vlan_tci;
1222 }
1223
1224 rc = ef4_filter_insert_filter(efx, &spec, true);
1225 if (rc < 0)
1226 return rc;
1227
1228 rule->location = rc;
1229 return 0;
1230 }
1231
ef4_ethtool_set_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * info)1232 static int ef4_ethtool_set_rxnfc(struct net_device *net_dev,
1233 struct ethtool_rxnfc *info)
1234 {
1235 struct ef4_nic *efx = netdev_priv(net_dev);
1236
1237 if (ef4_filter_get_rx_id_limit(efx) == 0)
1238 return -EOPNOTSUPP;
1239
1240 switch (info->cmd) {
1241 case ETHTOOL_SRXCLSRLINS:
1242 return ef4_ethtool_set_class_rule(efx, &info->fs);
1243
1244 case ETHTOOL_SRXCLSRLDEL:
1245 return ef4_filter_remove_id_safe(efx, EF4_FILTER_PRI_MANUAL,
1246 info->fs.location);
1247
1248 default:
1249 return -EOPNOTSUPP;
1250 }
1251 }
1252
ef4_ethtool_get_rxfh_indir_size(struct net_device * net_dev)1253 static u32 ef4_ethtool_get_rxfh_indir_size(struct net_device *net_dev)
1254 {
1255 struct ef4_nic *efx = netdev_priv(net_dev);
1256
1257 return ((ef4_nic_rev(efx) < EF4_REV_FALCON_B0 ||
1258 efx->n_rx_channels == 1) ?
1259 0 : ARRAY_SIZE(efx->rx_indir_table));
1260 }
1261
ef4_ethtool_get_rxfh(struct net_device * net_dev,struct ethtool_rxfh_param * rxfh)1262 static int ef4_ethtool_get_rxfh(struct net_device *net_dev,
1263 struct ethtool_rxfh_param *rxfh)
1264 {
1265 struct ef4_nic *efx = netdev_priv(net_dev);
1266
1267 rxfh->hfunc = ETH_RSS_HASH_TOP;
1268 if (rxfh->indir)
1269 memcpy(rxfh->indir, efx->rx_indir_table,
1270 sizeof(efx->rx_indir_table));
1271 return 0;
1272 }
1273
ef4_ethtool_set_rxfh(struct net_device * net_dev,struct ethtool_rxfh_param * rxfh,struct netlink_ext_ack * extack)1274 static int ef4_ethtool_set_rxfh(struct net_device *net_dev,
1275 struct ethtool_rxfh_param *rxfh,
1276 struct netlink_ext_ack *extack)
1277 {
1278 struct ef4_nic *efx = netdev_priv(net_dev);
1279
1280 /* We do not allow change in unsupported parameters */
1281 if (rxfh->key ||
1282 (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
1283 rxfh->hfunc != ETH_RSS_HASH_TOP))
1284 return -EOPNOTSUPP;
1285 if (!rxfh->indir)
1286 return 0;
1287
1288 return efx->type->rx_push_rss_config(efx, true, rxfh->indir);
1289 }
1290
ef4_ethtool_get_module_eeprom(struct net_device * net_dev,struct ethtool_eeprom * ee,u8 * data)1291 static int ef4_ethtool_get_module_eeprom(struct net_device *net_dev,
1292 struct ethtool_eeprom *ee,
1293 u8 *data)
1294 {
1295 struct ef4_nic *efx = netdev_priv(net_dev);
1296 int ret;
1297
1298 if (!efx->phy_op || !efx->phy_op->get_module_eeprom)
1299 return -EOPNOTSUPP;
1300
1301 mutex_lock(&efx->mac_lock);
1302 ret = efx->phy_op->get_module_eeprom(efx, ee, data);
1303 mutex_unlock(&efx->mac_lock);
1304
1305 return ret;
1306 }
1307
ef4_ethtool_get_module_info(struct net_device * net_dev,struct ethtool_modinfo * modinfo)1308 static int ef4_ethtool_get_module_info(struct net_device *net_dev,
1309 struct ethtool_modinfo *modinfo)
1310 {
1311 struct ef4_nic *efx = netdev_priv(net_dev);
1312 int ret;
1313
1314 if (!efx->phy_op || !efx->phy_op->get_module_info)
1315 return -EOPNOTSUPP;
1316
1317 mutex_lock(&efx->mac_lock);
1318 ret = efx->phy_op->get_module_info(efx, modinfo);
1319 mutex_unlock(&efx->mac_lock);
1320
1321 return ret;
1322 }
1323
1324 const struct ethtool_ops ef4_ethtool_ops = {
1325 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1326 ETHTOOL_COALESCE_USECS_IRQ |
1327 ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
1328 .get_drvinfo = ef4_ethtool_get_drvinfo,
1329 .get_regs_len = ef4_ethtool_get_regs_len,
1330 .get_regs = ef4_ethtool_get_regs,
1331 .get_msglevel = ef4_ethtool_get_msglevel,
1332 .set_msglevel = ef4_ethtool_set_msglevel,
1333 .nway_reset = ef4_ethtool_nway_reset,
1334 .get_link = ethtool_op_get_link,
1335 .get_coalesce = ef4_ethtool_get_coalesce,
1336 .set_coalesce = ef4_ethtool_set_coalesce,
1337 .get_ringparam = ef4_ethtool_get_ringparam,
1338 .set_ringparam = ef4_ethtool_set_ringparam,
1339 .get_pauseparam = ef4_ethtool_get_pauseparam,
1340 .set_pauseparam = ef4_ethtool_set_pauseparam,
1341 .get_sset_count = ef4_ethtool_get_sset_count,
1342 .self_test = ef4_ethtool_self_test,
1343 .get_strings = ef4_ethtool_get_strings,
1344 .set_phys_id = ef4_ethtool_phys_id,
1345 .get_ethtool_stats = ef4_ethtool_get_stats,
1346 .get_wol = ef4_ethtool_get_wol,
1347 .set_wol = ef4_ethtool_set_wol,
1348 .reset = ef4_ethtool_reset,
1349 .get_rxnfc = ef4_ethtool_get_rxnfc,
1350 .set_rxnfc = ef4_ethtool_set_rxnfc,
1351 .get_rxfh_indir_size = ef4_ethtool_get_rxfh_indir_size,
1352 .get_rxfh = ef4_ethtool_get_rxfh,
1353 .set_rxfh = ef4_ethtool_set_rxfh,
1354 .get_rxfh_fields = ef4_ethtool_get_rxfh_fields,
1355 .get_module_info = ef4_ethtool_get_module_info,
1356 .get_module_eeprom = ef4_ethtool_get_module_eeprom,
1357 .get_link_ksettings = ef4_ethtool_get_link_ksettings,
1358 .set_link_ksettings = ef4_ethtool_set_link_ksettings,
1359 };
1360