tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2009 Solarflare Communications Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation, incorporated herein by reference.
9 */
10
11#include <linux/netdevice.h>
12#include <linux/ethtool.h>
13#include <linux/rtnetlink.h>
14#include "net_driver.h"
15#include "workarounds.h"
16#include "selftest.h"
17#include "efx.h"
18#include "nic.h"
19#include "spi.h"
20#include "mdio_10g.h"
21
22struct ethtool_string {
23 char name[ETH_GSTRING_LEN];
24};
25
26struct efx_ethtool_stat {
27 const char *name;
28 enum {
29 EFX_ETHTOOL_STAT_SOURCE_mac_stats,
30 EFX_ETHTOOL_STAT_SOURCE_nic,
31 EFX_ETHTOOL_STAT_SOURCE_channel
32 } source;
33 unsigned offset;
34 u64(*get_stat) (void *field); /* Reader function */
35};
36
37/* Initialiser for a struct #efx_ethtool_stat with type-checking */
38#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
39 get_stat_function) { \
40 .name = #stat_name, \
41 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
42 .offset = ((((field_type *) 0) == \
43 &((struct efx_##source_name *)0)->field) ? \
44 offsetof(struct efx_##source_name, field) : \
45 offsetof(struct efx_##source_name, field)), \
46 .get_stat = get_stat_function, \
47}
48
49static u64 efx_get_uint_stat(void *field)
50{
51 return *(unsigned int *)field;
52}
53
54static u64 efx_get_ulong_stat(void *field)
55{
56 return *(unsigned long *)field;
57}
58
59static u64 efx_get_u64_stat(void *field)
60{
61 return *(u64 *) field;
62}
63
64static u64 efx_get_atomic_stat(void *field)
65{
66 return atomic_read((atomic_t *) field);
67}
68
69#define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
70 EFX_ETHTOOL_STAT(field, mac_stats, field, \
71 unsigned long, efx_get_ulong_stat)
72
73#define EFX_ETHTOOL_U64_MAC_STAT(field) \
74 EFX_ETHTOOL_STAT(field, mac_stats, field, \
75 u64, efx_get_u64_stat)
76
77#define EFX_ETHTOOL_UINT_NIC_STAT(name) \
78 EFX_ETHTOOL_STAT(name, nic, n_##name, \
79 unsigned int, efx_get_uint_stat)
80
81#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
82 EFX_ETHTOOL_STAT(field, nic, field, \
83 atomic_t, efx_get_atomic_stat)
84
85#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
86 EFX_ETHTOOL_STAT(field, channel, n_##field, \
87 unsigned int, efx_get_uint_stat)
88
89static struct efx_ethtool_stat efx_ethtool_stats[] = {
90 EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
91 EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
92 EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
93 EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
94 EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
95 EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
96 EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
97 EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
98 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
99 EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
100 EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
101 EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
102 EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
103 EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
104 EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
105 EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
106 EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
107 EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
108 EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
109 EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
110 EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
111 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
112 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
113 EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
114 EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
115 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
116 EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
117 EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
118 EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
119 EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
120 EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
121 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
122 EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
123 EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
124 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
125 EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
126 EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
127 EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
128 EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
129 EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
130 EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
131 EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
132 EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
133 EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
134 EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
135 EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
136 EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
137 EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
138 EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
139 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
140 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
141 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
142 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
143 EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
144 EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
145 EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
146 EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
147 EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
148 EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
149 EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
150 EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
151 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
152 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
153 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
154 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
155 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
156 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
157};
158
159/* Number of ethtool statistics */
160#define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
161
162#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
163
164/**************************************************************************
165 *
166 * Ethtool operations
167 *
168 **************************************************************************
169 */
170
171/* Identify device by flashing LEDs */
172static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
173{
174 struct efx_nic *efx = netdev_priv(net_dev);
175
176 do {
177 efx->type->set_id_led(efx, EFX_LED_ON);
178 schedule_timeout_interruptible(HZ / 2);
179
180 efx->type->set_id_led(efx, EFX_LED_OFF);
181 schedule_timeout_interruptible(HZ / 2);
182 } while (!signal_pending(current) && --count != 0);
183
184 efx->type->set_id_led(efx, EFX_LED_DEFAULT);
185 return 0;
186}
187
188/* This must be called with rtnl_lock held. */
189int efx_ethtool_get_settings(struct net_device *net_dev,
190 struct ethtool_cmd *ecmd)
191{
192 struct efx_nic *efx = netdev_priv(net_dev);
193 struct efx_link_state *link_state = &efx->link_state;
194
195 mutex_lock(&efx->mac_lock);
196 efx->phy_op->get_settings(efx, ecmd);
197 mutex_unlock(&efx->mac_lock);
198
199 /* GMAC does not support 1000Mbps HD */
200 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
201 /* Both MACs support pause frames (bidirectional and respond-only) */
202 ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
203
204 if (LOOPBACK_INTERNAL(efx)) {
205 ecmd->speed = link_state->speed;
206 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
207 }
208
209 return 0;
210}
211
212/* This must be called with rtnl_lock held. */
213int efx_ethtool_set_settings(struct net_device *net_dev,
214 struct ethtool_cmd *ecmd)
215{
216 struct efx_nic *efx = netdev_priv(net_dev);
217 int rc;
218
219 /* GMAC does not support 1000Mbps HD */
220 if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
221 netif_dbg(efx, drv, efx->net_dev,
222 "rejecting unsupported 1000Mbps HD setting\n");
223 return -EINVAL;
224 }
225
226 mutex_lock(&efx->mac_lock);
227 rc = efx->phy_op->set_settings(efx, ecmd);
228 mutex_unlock(&efx->mac_lock);
229 return rc;
230}
231
232static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
233 struct ethtool_drvinfo *info)
234{
235 struct efx_nic *efx = netdev_priv(net_dev);
236
237 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
238 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
239 if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
240 siena_print_fwver(efx, info->fw_version,
241 sizeof(info->fw_version));
242 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
243}
244
245static int efx_ethtool_get_regs_len(struct net_device *net_dev)
246{
247 return efx_nic_get_regs_len(netdev_priv(net_dev));
248}
249
250static void efx_ethtool_get_regs(struct net_device *net_dev,
251 struct ethtool_regs *regs, void *buf)
252{
253 struct efx_nic *efx = netdev_priv(net_dev);
254
255 regs->version = efx->type->revision;
256 efx_nic_get_regs(efx, buf);
257}
258
259static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
260{
261 struct efx_nic *efx = netdev_priv(net_dev);
262 return efx->msg_enable;
263}
264
265static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
266{
267 struct efx_nic *efx = netdev_priv(net_dev);
268 efx->msg_enable = msg_enable;
269}
270
271/**
272 * efx_fill_test - fill in an individual self-test entry
273 * @test_index: Index of the test
274 * @strings: Ethtool strings, or %NULL
275 * @data: Ethtool test results, or %NULL
276 * @test: Pointer to test result (used only if data != %NULL)
277 * @unit_format: Unit name format (e.g. "chan\%d")
278 * @unit_id: Unit id (e.g. 0 for "chan0")
279 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
280 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
281 *
282 * Fill in an individual self-test entry.
283 */
284static void efx_fill_test(unsigned int test_index,
285 struct ethtool_string *strings, u64 *data,
286 int *test, const char *unit_format, int unit_id,
287 const char *test_format, const char *test_id)
288{
289 struct ethtool_string unit_str, test_str;
290
291 /* Fill data value, if applicable */
292 if (data)
293 data[test_index] = *test;
294
295 /* Fill string, if applicable */
296 if (strings) {
297 if (strchr(unit_format, '%'))
298 snprintf(unit_str.name, sizeof(unit_str.name),
299 unit_format, unit_id);
300 else
301 strcpy(unit_str.name, unit_format);
302 snprintf(test_str.name, sizeof(test_str.name),
303 test_format, test_id);
304 snprintf(strings[test_index].name,
305 sizeof(strings[test_index].name),
306 "%-6s %-24s", unit_str.name, test_str.name);
307 }
308}
309
310#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
311#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
312#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
313#define EFX_LOOPBACK_NAME(_mode, _counter) \
314 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
315
316/**
317 * efx_fill_loopback_test - fill in a block of loopback self-test entries
318 * @efx: Efx NIC
319 * @lb_tests: Efx loopback self-test results structure
320 * @mode: Loopback test mode
321 * @test_index: Starting index of the test
322 * @strings: Ethtool strings, or %NULL
323 * @data: Ethtool test results, or %NULL
324 */
325static int efx_fill_loopback_test(struct efx_nic *efx,
326 struct efx_loopback_self_tests *lb_tests,
327 enum efx_loopback_mode mode,
328 unsigned int test_index,
329 struct ethtool_string *strings, u64 *data)
330{
331 struct efx_tx_queue *tx_queue;
332
333 efx_for_each_channel_tx_queue(tx_queue, &efx->channel[0]) {
334 efx_fill_test(test_index++, strings, data,
335 &lb_tests->tx_sent[tx_queue->queue],
336 EFX_TX_QUEUE_NAME(tx_queue),
337 EFX_LOOPBACK_NAME(mode, "tx_sent"));
338 efx_fill_test(test_index++, strings, data,
339 &lb_tests->tx_done[tx_queue->queue],
340 EFX_TX_QUEUE_NAME(tx_queue),
341 EFX_LOOPBACK_NAME(mode, "tx_done"));
342 }
343 efx_fill_test(test_index++, strings, data,
344 &lb_tests->rx_good,
345 "rx", 0,
346 EFX_LOOPBACK_NAME(mode, "rx_good"));
347 efx_fill_test(test_index++, strings, data,
348 &lb_tests->rx_bad,
349 "rx", 0,
350 EFX_LOOPBACK_NAME(mode, "rx_bad"));
351
352 return test_index;
353}
354
355/**
356 * efx_ethtool_fill_self_tests - get self-test details
357 * @efx: Efx NIC
358 * @tests: Efx self-test results structure, or %NULL
359 * @strings: Ethtool strings, or %NULL
360 * @data: Ethtool test results, or %NULL
361 */
362static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
363 struct efx_self_tests *tests,
364 struct ethtool_string *strings,
365 u64 *data)
366{
367 struct efx_channel *channel;
368 unsigned int n = 0, i;
369 enum efx_loopback_mode mode;
370
371 efx_fill_test(n++, strings, data, &tests->phy_alive,
372 "phy", 0, "alive", NULL);
373 efx_fill_test(n++, strings, data, &tests->nvram,
374 "core", 0, "nvram", NULL);
375 efx_fill_test(n++, strings, data, &tests->interrupt,
376 "core", 0, "interrupt", NULL);
377
378 /* Event queues */
379 efx_for_each_channel(channel, efx) {
380 efx_fill_test(n++, strings, data,
381 &tests->eventq_dma[channel->channel],
382 EFX_CHANNEL_NAME(channel),
383 "eventq.dma", NULL);
384 efx_fill_test(n++, strings, data,
385 &tests->eventq_int[channel->channel],
386 EFX_CHANNEL_NAME(channel),
387 "eventq.int", NULL);
388 efx_fill_test(n++, strings, data,
389 &tests->eventq_poll[channel->channel],
390 EFX_CHANNEL_NAME(channel),
391 "eventq.poll", NULL);
392 }
393
394 efx_fill_test(n++, strings, data, &tests->registers,
395 "core", 0, "registers", NULL);
396
397 if (efx->phy_op->run_tests != NULL) {
398 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
399
400 for (i = 0; true; ++i) {
401 const char *name;
402
403 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
404 name = efx->phy_op->test_name(efx, i);
405 if (name == NULL)
406 break;
407
408 efx_fill_test(n++, strings, data, &tests->phy_ext[i],
409 "phy", 0, name, NULL);
410 }
411 }
412
413 /* Loopback tests */
414 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
415 if (!(efx->loopback_modes & (1 << mode)))
416 continue;
417 n = efx_fill_loopback_test(efx,
418 &tests->loopback[mode], mode, n,
419 strings, data);
420 }
421
422 return n;
423}
424
425static int efx_ethtool_get_sset_count(struct net_device *net_dev,
426 int string_set)
427{
428 switch (string_set) {
429 case ETH_SS_STATS:
430 return EFX_ETHTOOL_NUM_STATS;
431 case ETH_SS_TEST:
432 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
433 NULL, NULL, NULL);
434 default:
435 return -EINVAL;
436 }
437}
438
439static void efx_ethtool_get_strings(struct net_device *net_dev,
440 u32 string_set, u8 *strings)
441{
442 struct efx_nic *efx = netdev_priv(net_dev);
443 struct ethtool_string *ethtool_strings =
444 (struct ethtool_string *)strings;
445 int i;
446
447 switch (string_set) {
448 case ETH_SS_STATS:
449 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
450 strncpy(ethtool_strings[i].name,
451 efx_ethtool_stats[i].name,
452 sizeof(ethtool_strings[i].name));
453 break;
454 case ETH_SS_TEST:
455 efx_ethtool_fill_self_tests(efx, NULL,
456 ethtool_strings, NULL);
457 break;
458 default:
459 /* No other string sets */
460 break;
461 }
462}
463
464static void efx_ethtool_get_stats(struct net_device *net_dev,
465 struct ethtool_stats *stats,
466 u64 *data)
467{
468 struct efx_nic *efx = netdev_priv(net_dev);
469 struct efx_mac_stats *mac_stats = &efx->mac_stats;
470 struct efx_ethtool_stat *stat;
471 struct efx_channel *channel;
472 struct rtnl_link_stats64 temp;
473 int i;
474
475 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
476
477 /* Update MAC and NIC statistics */
478 dev_get_stats(net_dev, &temp);
479
480 /* Fill detailed statistics buffer */
481 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
482 stat = &efx_ethtool_stats[i];
483 switch (stat->source) {
484 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
485 data[i] = stat->get_stat((void *)mac_stats +
486 stat->offset);
487 break;
488 case EFX_ETHTOOL_STAT_SOURCE_nic:
489 data[i] = stat->get_stat((void *)efx + stat->offset);
490 break;
491 case EFX_ETHTOOL_STAT_SOURCE_channel:
492 data[i] = 0;
493 efx_for_each_channel(channel, efx)
494 data[i] += stat->get_stat((void *)channel +
495 stat->offset);
496 break;
497 }
498 }
499}
500
501static int efx_ethtool_set_tso(struct net_device *net_dev, u32 enable)
502{
503 struct efx_nic *efx __attribute__ ((unused)) = netdev_priv(net_dev);
504 unsigned long features;
505
506 features = NETIF_F_TSO;
507 if (efx->type->offload_features & NETIF_F_V6_CSUM)
508 features |= NETIF_F_TSO6;
509
510 if (enable)
511 net_dev->features |= features;
512 else
513 net_dev->features &= ~features;
514
515 return 0;
516}
517
518static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
519{
520 struct efx_nic *efx = netdev_priv(net_dev);
521 unsigned long features = efx->type->offload_features & NETIF_F_ALL_CSUM;
522
523 if (enable)
524 net_dev->features |= features;
525 else
526 net_dev->features &= ~features;
527
528 return 0;
529}
530
531static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
532{
533 struct efx_nic *efx = netdev_priv(net_dev);
534
535 /* No way to stop the hardware doing the checks; we just
536 * ignore the result.
537 */
538 efx->rx_checksum_enabled = !!enable;
539
540 return 0;
541}
542
543static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
544{
545 struct efx_nic *efx = netdev_priv(net_dev);
546
547 return efx->rx_checksum_enabled;
548}
549
550static int efx_ethtool_set_flags(struct net_device *net_dev, u32 data)
551{
552 struct efx_nic *efx = netdev_priv(net_dev);
553 u32 supported = efx->type->offload_features & ETH_FLAG_RXHASH;
554
555 return ethtool_op_set_flags(net_dev, data, supported);
556}
557
558static void efx_ethtool_self_test(struct net_device *net_dev,
559 struct ethtool_test *test, u64 *data)
560{
561 struct efx_nic *efx = netdev_priv(net_dev);
562 struct efx_self_tests efx_tests;
563 int already_up;
564 int rc;
565
566 ASSERT_RTNL();
567 if (efx->state != STATE_RUNNING) {
568 rc = -EIO;
569 goto fail1;
570 }
571
572 /* We need rx buffers and interrupts. */
573 already_up = (efx->net_dev->flags & IFF_UP);
574 if (!already_up) {
575 rc = dev_open(efx->net_dev);
576 if (rc) {
577 netif_err(efx, drv, efx->net_dev,
578 "failed opening device.\n");
579 goto fail2;
580 }
581 }
582
583 memset(&efx_tests, 0, sizeof(efx_tests));
584
585 rc = efx_selftest(efx, &efx_tests, test->flags);
586
587 if (!already_up)
588 dev_close(efx->net_dev);
589
590 netif_dbg(efx, drv, efx->net_dev, "%s %sline self-tests\n",
591 rc == 0 ? "passed" : "failed",
592 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
593
594 fail2:
595 fail1:
596 /* Fill ethtool results structures */
597 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
598 if (rc)
599 test->flags |= ETH_TEST_FL_FAILED;
600}
601
602/* Restart autonegotiation */
603static int efx_ethtool_nway_reset(struct net_device *net_dev)
604{
605 struct efx_nic *efx = netdev_priv(net_dev);
606
607 return mdio45_nway_restart(&efx->mdio);
608}
609
610static u32 efx_ethtool_get_link(struct net_device *net_dev)
611{
612 struct efx_nic *efx = netdev_priv(net_dev);
613
614 return efx->link_state.up;
615}
616
617static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
618{
619 struct efx_nic *efx = netdev_priv(net_dev);
620 struct efx_spi_device *spi = efx->spi_eeprom;
621
622 if (!spi)
623 return 0;
624 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
625 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
626}
627
628static int efx_ethtool_get_eeprom(struct net_device *net_dev,
629 struct ethtool_eeprom *eeprom, u8 *buf)
630{
631 struct efx_nic *efx = netdev_priv(net_dev);
632 struct efx_spi_device *spi = efx->spi_eeprom;
633 size_t len;
634 int rc;
635
636 rc = mutex_lock_interruptible(&efx->spi_lock);
637 if (rc)
638 return rc;
639 rc = falcon_spi_read(efx, spi,
640 eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
641 eeprom->len, &len, buf);
642 mutex_unlock(&efx->spi_lock);
643
644 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
645 eeprom->len = len;
646 return rc;
647}
648
649static int efx_ethtool_set_eeprom(struct net_device *net_dev,
650 struct ethtool_eeprom *eeprom, u8 *buf)
651{
652 struct efx_nic *efx = netdev_priv(net_dev);
653 struct efx_spi_device *spi = efx->spi_eeprom;
654 size_t len;
655 int rc;
656
657 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
658 return -EINVAL;
659
660 rc = mutex_lock_interruptible(&efx->spi_lock);
661 if (rc)
662 return rc;
663 rc = falcon_spi_write(efx, spi,
664 eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
665 eeprom->len, &len, buf);
666 mutex_unlock(&efx->spi_lock);
667
668 eeprom->len = len;
669 return rc;
670}
671
672static int efx_ethtool_get_coalesce(struct net_device *net_dev,
673 struct ethtool_coalesce *coalesce)
674{
675 struct efx_nic *efx = netdev_priv(net_dev);
676 struct efx_tx_queue *tx_queue;
677 struct efx_channel *channel;
678
679 memset(coalesce, 0, sizeof(*coalesce));
680
681 /* Find lowest IRQ moderation across all used TX queues */
682 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
683 efx_for_each_tx_queue(tx_queue, efx) {
684 channel = tx_queue->channel;
685 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
686 if (channel->channel < efx->n_rx_channels)
687 coalesce->tx_coalesce_usecs_irq =
688 channel->irq_moderation;
689 else
690 coalesce->tx_coalesce_usecs_irq = 0;
691 }
692 }
693
694 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
695 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
696
697 coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
698 coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
699
700 return 0;
701}
702
703/* Set coalescing parameters
704 * The difficulties occur for shared channels
705 */
706static int efx_ethtool_set_coalesce(struct net_device *net_dev,
707 struct ethtool_coalesce *coalesce)
708{
709 struct efx_nic *efx = netdev_priv(net_dev);
710 struct efx_channel *channel;
711 struct efx_tx_queue *tx_queue;
712 unsigned tx_usecs, rx_usecs, adaptive;
713
714 if (coalesce->use_adaptive_tx_coalesce)
715 return -EOPNOTSUPP;
716
717 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
718 netif_err(efx, drv, efx->net_dev, "invalid coalescing setting. "
719 "Only rx/tx_coalesce_usecs_irq are supported\n");
720 return -EOPNOTSUPP;
721 }
722
723 rx_usecs = coalesce->rx_coalesce_usecs_irq;
724 tx_usecs = coalesce->tx_coalesce_usecs_irq;
725 adaptive = coalesce->use_adaptive_rx_coalesce;
726
727 /* If the channel is shared only allow RX parameters to be set */
728 efx_for_each_tx_queue(tx_queue, efx) {
729 if ((tx_queue->channel->channel < efx->n_rx_channels) &&
730 tx_usecs) {
731 netif_err(efx, drv, efx->net_dev, "Channel is shared. "
732 "Only RX coalescing may be set\n");
733 return -EOPNOTSUPP;
734 }
735 }
736
737 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
738 efx_for_each_channel(channel, efx)
739 efx->type->push_irq_moderation(channel);
740
741 return 0;
742}
743
744static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
745 struct ethtool_pauseparam *pause)
746{
747 struct efx_nic *efx = netdev_priv(net_dev);
748 enum efx_fc_type wanted_fc, old_fc;
749 u32 old_adv;
750 bool reset;
751 int rc = 0;
752
753 mutex_lock(&efx->mac_lock);
754
755 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
756 (pause->tx_pause ? EFX_FC_TX : 0) |
757 (pause->autoneg ? EFX_FC_AUTO : 0));
758
759 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
760 netif_dbg(efx, drv, efx->net_dev,
761 "Flow control unsupported: tx ON rx OFF\n");
762 rc = -EINVAL;
763 goto out;
764 }
765
766 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
767 netif_dbg(efx, drv, efx->net_dev,
768 "Autonegotiation is disabled\n");
769 rc = -EINVAL;
770 goto out;
771 }
772
773 /* TX flow control may automatically turn itself off if the
774 * link partner (intermittently) stops responding to pause
775 * frames. There isn't any indication that this has happened,
776 * so the best we do is leave it up to the user to spot this
777 * and fix it be cycling transmit flow control on this end. */
778 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
779 if (EFX_WORKAROUND_11482(efx) && reset) {
780 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
781 /* Recover by resetting the EM block */
782 falcon_stop_nic_stats(efx);
783 falcon_drain_tx_fifo(efx);
784 efx->mac_op->reconfigure(efx);
785 falcon_start_nic_stats(efx);
786 } else {
787 /* Schedule a reset to recover */
788 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
789 }
790 }
791
792 old_adv = efx->link_advertising;
793 old_fc = efx->wanted_fc;
794 efx_link_set_wanted_fc(efx, wanted_fc);
795 if (efx->link_advertising != old_adv ||
796 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
797 rc = efx->phy_op->reconfigure(efx);
798 if (rc) {
799 netif_err(efx, drv, efx->net_dev,
800 "Unable to advertise requested flow "
801 "control setting\n");
802 goto out;
803 }
804 }
805
806 /* Reconfigure the MAC. The PHY *may* generate a link state change event
807 * if the user just changed the advertised capabilities, but there's no
808 * harm doing this twice */
809 efx->mac_op->reconfigure(efx);
810
811out:
812 mutex_unlock(&efx->mac_lock);
813
814 return rc;
815}
816
817static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
818 struct ethtool_pauseparam *pause)
819{
820 struct efx_nic *efx = netdev_priv(net_dev);
821
822 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
823 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
824 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
825}
826
827
828static void efx_ethtool_get_wol(struct net_device *net_dev,
829 struct ethtool_wolinfo *wol)
830{
831 struct efx_nic *efx = netdev_priv(net_dev);
832 return efx->type->get_wol(efx, wol);
833}
834
835
836static int efx_ethtool_set_wol(struct net_device *net_dev,
837 struct ethtool_wolinfo *wol)
838{
839 struct efx_nic *efx = netdev_priv(net_dev);
840 return efx->type->set_wol(efx, wol->wolopts);
841}
842
843extern int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
844{
845 struct efx_nic *efx = netdev_priv(net_dev);
846 enum reset_type method;
847 enum {
848 ETH_RESET_EFX_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
849 ETH_RESET_OFFLOAD | ETH_RESET_MAC)
850 };
851
852 /* Check for minimal reset flags */
853 if ((*flags & ETH_RESET_EFX_INVISIBLE) != ETH_RESET_EFX_INVISIBLE)
854 return -EINVAL;
855 *flags ^= ETH_RESET_EFX_INVISIBLE;
856 method = RESET_TYPE_INVISIBLE;
857
858 if (*flags & ETH_RESET_PHY) {
859 *flags ^= ETH_RESET_PHY;
860 method = RESET_TYPE_ALL;
861 }
862
863 if ((*flags & efx->type->reset_world_flags) ==
864 efx->type->reset_world_flags) {
865 *flags ^= efx->type->reset_world_flags;
866 method = RESET_TYPE_WORLD;
867 }
868
869 return efx_reset(efx, method);
870}
871
872static int
873efx_ethtool_get_rxnfc(struct net_device *net_dev,
874 struct ethtool_rxnfc *info, void *rules __always_unused)
875{
876 struct efx_nic *efx = netdev_priv(net_dev);
877
878 switch (info->cmd) {
879 case ETHTOOL_GRXRINGS:
880 info->data = efx->n_rx_channels;
881 return 0;
882
883 case ETHTOOL_GRXFH: {
884 unsigned min_revision = 0;
885
886 info->data = 0;
887 switch (info->flow_type) {
888 case TCP_V4_FLOW:
889 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
890 /* fall through */
891 case UDP_V4_FLOW:
892 case SCTP_V4_FLOW:
893 case AH_ESP_V4_FLOW:
894 case IPV4_FLOW:
895 info->data |= RXH_IP_SRC | RXH_IP_DST;
896 min_revision = EFX_REV_FALCON_B0;
897 break;
898 case TCP_V6_FLOW:
899 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
900 /* fall through */
901 case UDP_V6_FLOW:
902 case SCTP_V6_FLOW:
903 case AH_ESP_V6_FLOW:
904 case IPV6_FLOW:
905 info->data |= RXH_IP_SRC | RXH_IP_DST;
906 min_revision = EFX_REV_SIENA_A0;
907 break;
908 default:
909 break;
910 }
911 if (efx_nic_rev(efx) < min_revision)
912 info->data = 0;
913 return 0;
914 }
915
916 default:
917 return -EOPNOTSUPP;
918 }
919}
920
921static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
922 struct ethtool_rxfh_indir *indir)
923{
924 struct efx_nic *efx = netdev_priv(net_dev);
925 size_t copy_size =
926 min_t(size_t, indir->size, ARRAY_SIZE(efx->rx_indir_table));
927
928 if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
929 return -EOPNOTSUPP;
930
931 indir->size = ARRAY_SIZE(efx->rx_indir_table);
932 memcpy(indir->ring_index, efx->rx_indir_table,
933 copy_size * sizeof(indir->ring_index[0]));
934 return 0;
935}
936
937static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
938 const struct ethtool_rxfh_indir *indir)
939{
940 struct efx_nic *efx = netdev_priv(net_dev);
941 size_t i;
942
943 if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
944 return -EOPNOTSUPP;
945
946 /* Validate size and indices */
947 if (indir->size != ARRAY_SIZE(efx->rx_indir_table))
948 return -EINVAL;
949 for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
950 if (indir->ring_index[i] >= efx->n_rx_channels)
951 return -EINVAL;
952
953 memcpy(efx->rx_indir_table, indir->ring_index,
954 sizeof(efx->rx_indir_table));
955 efx_nic_push_rx_indir_table(efx);
956 return 0;
957}
958
959const struct ethtool_ops efx_ethtool_ops = {
960 .get_settings = efx_ethtool_get_settings,
961 .set_settings = efx_ethtool_set_settings,
962 .get_drvinfo = efx_ethtool_get_drvinfo,
963 .get_regs_len = efx_ethtool_get_regs_len,
964 .get_regs = efx_ethtool_get_regs,
965 .get_msglevel = efx_ethtool_get_msglevel,
966 .set_msglevel = efx_ethtool_set_msglevel,
967 .nway_reset = efx_ethtool_nway_reset,
968 .get_link = efx_ethtool_get_link,
969 .get_eeprom_len = efx_ethtool_get_eeprom_len,
970 .get_eeprom = efx_ethtool_get_eeprom,
971 .set_eeprom = efx_ethtool_set_eeprom,
972 .get_coalesce = efx_ethtool_get_coalesce,
973 .set_coalesce = efx_ethtool_set_coalesce,
974 .get_pauseparam = efx_ethtool_get_pauseparam,
975 .set_pauseparam = efx_ethtool_set_pauseparam,
976 .get_rx_csum = efx_ethtool_get_rx_csum,
977 .set_rx_csum = efx_ethtool_set_rx_csum,
978 .get_tx_csum = ethtool_op_get_tx_csum,
979 /* Need to enable/disable IPv6 too */
980 .set_tx_csum = efx_ethtool_set_tx_csum,
981 .get_sg = ethtool_op_get_sg,
982 .set_sg = ethtool_op_set_sg,
983 .get_tso = ethtool_op_get_tso,
984 /* Need to enable/disable TSO-IPv6 too */
985 .set_tso = efx_ethtool_set_tso,
986 .get_flags = ethtool_op_get_flags,
987 .set_flags = efx_ethtool_set_flags,
988 .get_sset_count = efx_ethtool_get_sset_count,
989 .self_test = efx_ethtool_self_test,
990 .get_strings = efx_ethtool_get_strings,
991 .phys_id = efx_ethtool_phys_id,
992 .get_ethtool_stats = efx_ethtool_get_stats,
993 .get_wol = efx_ethtool_get_wol,
994 .set_wol = efx_ethtool_set_wol,
995 .reset = efx_ethtool_reset,
996 .get_rxnfc = efx_ethtool_get_rxnfc,
997 .get_rxfh_indir = efx_ethtool_get_rxfh_indir,
998 .set_rxfh_indir = efx_ethtool_set_rxfh_indir,
999};