projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
sfc: Add support for SFC9000 family (2)
[deliverable/linux.git] / drivers / net / sfc / ethtool.c
CommitLineData
8ceee660
BH		 1/****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2008 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"
04cc8cac 15#include "workarounds.h"
3273c2e8 16#include "selftest.h"
8ceee660 17#include "efx.h"
744093c9 18#include "nic.h"
4a5b504d 19#include "spi.h"
04cc8cac 20#include "mdio_10g.h"
8ceee660 21
8ceee660
BH		 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),
c1ac403b 155 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
8ceee660
BH		 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
4a5b504d 162#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
4a5b504d 163
8ceee660
BH		 164/**************************************************************************
165 *
166 * Ethtool operations
167 *
168 **************************************************************************
169 */
170
171/* Identify device by flashing LEDs */
65f667fb 172static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
8ceee660 173{
767e468c 174 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 175
398468ed 176 do {
06629f07 177 efx->type->set_id_led(efx, EFX_LED_ON);
398468ed
BH		 178 schedule_timeout_interruptible(HZ / 2);
179
06629f07 180 efx->type->set_id_led(efx, EFX_LED_OFF);
398468ed
BH		 181 schedule_timeout_interruptible(HZ / 2);
182 } while (!signal_pending(current) && --count != 0);
183
06629f07 184 efx->type->set_id_led(efx, EFX_LED_DEFAULT);
8ceee660
BH		 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{
767e468c 192 struct efx_nic *efx = netdev_priv(net_dev);
d3245b28 193 struct efx_link_state *link_state = &efx->link_state;
8ceee660
BH		 194
195 mutex_lock(&efx->mac_lock);
177dfcd8 196 efx->phy_op->get_settings(efx, ecmd);
8ceee660
BH		 197 mutex_unlock(&efx->mac_lock);
198
177dfcd8
BH		 199 /* Falcon GMAC does not support 1000Mbps HD */
200 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
d3245b28
BH		 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 }
177dfcd8
BH		 208
209 return 0;
8ceee660
BH		 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{
767e468c 216 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 217 int rc;
218
177dfcd8
BH		 219 /* Falcon GMAC does not support 1000Mbps HD */
220 if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
221 EFX_LOG(efx, "rejecting unsupported 1000Mbps HD"
222 " setting\n");
223 return -EINVAL;
224 }
225
8ceee660 226 mutex_lock(&efx->mac_lock);
177dfcd8 227 rc = efx->phy_op->set_settings(efx, ecmd);
8ceee660 228 mutex_unlock(&efx->mac_lock);
8ceee660
BH		 229 return rc;
230}
231
232static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
233 struct ethtool_drvinfo *info)
234{
767e468c 235 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 236
237 strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
238 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
8880f4ec
BH		 239 if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
240 siena_print_fwver(efx, info->fw_version,
241 sizeof(info->fw_version));
8ceee660
BH		 242 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
243}
244
3273c2e8
BH		 245/**
246 * efx_fill_test - fill in an individual self-test entry
247 * @test_index: Index of the test
248 * @strings: Ethtool strings, or %NULL
249 * @data: Ethtool test results, or %NULL
250 * @test: Pointer to test result (used only if data != %NULL)
740ced99
BH		 251 * @unit_format: Unit name format (e.g. "chan\%d")
252 * @unit_id: Unit id (e.g. 0 for "chan0")
3273c2e8 253 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
740ced99 254 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
3273c2e8
BH		 255 *
256 * Fill in an individual self-test entry.
257 */
258static void efx_fill_test(unsigned int test_index,
259 struct ethtool_string *strings, u64 *data,
260 int *test, const char *unit_format, int unit_id,
261 const char *test_format, const char *test_id)
262{
263 struct ethtool_string unit_str, test_str;
264
265 /* Fill data value, if applicable */
266 if (data)
267 data[test_index] = *test;
268
269 /* Fill string, if applicable */
270 if (strings) {
11e66966
BH		 271 if (strchr(unit_format, '%'))
272 snprintf(unit_str.name, sizeof(unit_str.name),
273 unit_format, unit_id);
274 else
275 strcpy(unit_str.name, unit_format);
3273c2e8
BH		 276 snprintf(test_str.name, sizeof(test_str.name),
277 test_format, test_id);
278 snprintf(strings[test_index].name,
279 sizeof(strings[test_index].name),
740ced99 280 "%-6s %-24s", unit_str.name, test_str.name);
3273c2e8
BH		 281 }
282}
283
740ced99 284#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
3273c2e8
BH		 285#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
286#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
287#define EFX_LOOPBACK_NAME(_mode, _counter) \
c459302d 288 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
3273c2e8
BH		 289
290/**
291 * efx_fill_loopback_test - fill in a block of loopback self-test entries
292 * @efx: Efx NIC
293 * @lb_tests: Efx loopback self-test results structure
294 * @mode: Loopback test mode
295 * @test_index: Starting index of the test
296 * @strings: Ethtool strings, or %NULL
297 * @data: Ethtool test results, or %NULL
298 */
299static int efx_fill_loopback_test(struct efx_nic *efx,
300 struct efx_loopback_self_tests *lb_tests,
301 enum efx_loopback_mode mode,
302 unsigned int test_index,
303 struct ethtool_string *strings, u64 *data)
304{
305 struct efx_tx_queue *tx_queue;
306
307 efx_for_each_tx_queue(tx_queue, efx) {
308 efx_fill_test(test_index++, strings, data,
309 &lb_tests->tx_sent[tx_queue->queue],
310 EFX_TX_QUEUE_NAME(tx_queue),
311 EFX_LOOPBACK_NAME(mode, "tx_sent"));
312 efx_fill_test(test_index++, strings, data,
313 &lb_tests->tx_done[tx_queue->queue],
314 EFX_TX_QUEUE_NAME(tx_queue),
315 EFX_LOOPBACK_NAME(mode, "tx_done"));
316 }
317 efx_fill_test(test_index++, strings, data,
318 &lb_tests->rx_good,
11e66966 319 "rx", 0,
3273c2e8
BH		 320 EFX_LOOPBACK_NAME(mode, "rx_good"));
321 efx_fill_test(test_index++, strings, data,
322 &lb_tests->rx_bad,
11e66966 323 "rx", 0,
3273c2e8
BH		 324 EFX_LOOPBACK_NAME(mode, "rx_bad"));
325
326 return test_index;
327}
328
329/**
330 * efx_ethtool_fill_self_tests - get self-test details
331 * @efx: Efx NIC
332 * @tests: Efx self-test results structure, or %NULL
333 * @strings: Ethtool strings, or %NULL
334 * @data: Ethtool test results, or %NULL
335 */
336static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
337 struct efx_self_tests *tests,
338 struct ethtool_string *strings,
339 u64 *data)
340{
341 struct efx_channel *channel;
1796721a 342 unsigned int n = 0, i;
3273c2e8
BH		 343 enum efx_loopback_mode mode;
344
68e7f45e
BH		 345 efx_fill_test(n++, strings, data, &tests->mdio,
346 "core", 0, "mdio", NULL);
8c8661e4
BH		 347 efx_fill_test(n++, strings, data, &tests->nvram,
348 "core", 0, "nvram", NULL);
3273c2e8
BH		 349 efx_fill_test(n++, strings, data, &tests->interrupt,
350 "core", 0, "interrupt", NULL);
351
352 /* Event queues */
353 efx_for_each_channel(channel, efx) {
354 efx_fill_test(n++, strings, data,
355 &tests->eventq_dma[channel->channel],
356 EFX_CHANNEL_NAME(channel),
357 "eventq.dma", NULL);
358 efx_fill_test(n++, strings, data,
359 &tests->eventq_int[channel->channel],
360 EFX_CHANNEL_NAME(channel),
361 "eventq.int", NULL);
362 efx_fill_test(n++, strings, data,
363 &tests->eventq_poll[channel->channel],
364 EFX_CHANNEL_NAME(channel),
365 "eventq.poll", NULL);
366 }
367
8c8661e4
BH		 368 efx_fill_test(n++, strings, data, &tests->registers,
369 "core", 0, "registers", NULL);
1796721a 370
c1c4f453
BH		 371 if (efx->phy_op->run_tests != NULL) {
372 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
373
374 for (i = 0; true; ++i) {
375 const char *name;
376
377 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
378 name = efx->phy_op->test_name(efx, i);
379 if (name == NULL)
380 break;
381
382 efx_fill_test(n++, strings, data, &tests->phy[i],
383 "phy", 0, name, NULL);
384 }
385 }
3273c2e8
BH		 386
387 /* Loopback tests */
8c8661e4 388 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
3273c2e8
BH		 389 if (!(efx->loopback_modes & (1 << mode)))
390 continue;
391 n = efx_fill_loopback_test(efx,
392 &tests->loopback[mode], mode, n,
393 strings, data);
394 }
395
396 return n;
397}
398
3594e131
BH		 399static int efx_ethtool_get_sset_count(struct net_device *net_dev,
400 int string_set)
8ceee660 401{
3594e131
BH		 402 switch (string_set) {
403 case ETH_SS_STATS:
404 return EFX_ETHTOOL_NUM_STATS;
405 case ETH_SS_TEST:
406 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
407 NULL, NULL, NULL);
408 default:
409 return -EINVAL;
410 }
3273c2e8
BH		 411}
412
8ceee660
BH		 413static void efx_ethtool_get_strings(struct net_device *net_dev,
414 u32 string_set, u8 *strings)
415{
767e468c 416 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 417 struct ethtool_string *ethtool_strings =
418 (struct ethtool_string *)strings;
419 int i;
420
3273c2e8
BH		 421 switch (string_set) {
422 case ETH_SS_STATS:
8ceee660
BH		 423 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
424 strncpy(ethtool_strings[i].name,
425 efx_ethtool_stats[i].name,
426 sizeof(ethtool_strings[i].name));
3273c2e8
BH		 427 break;
428 case ETH_SS_TEST:
429 efx_ethtool_fill_self_tests(efx, NULL,
430 ethtool_strings, NULL);
431 break;
432 default:
433 /* No other string sets */
434 break;
435 }
8ceee660
BH		 436}
437
438static void efx_ethtool_get_stats(struct net_device *net_dev,
439 struct ethtool_stats *stats,
440 u64 *data)
441{
767e468c 442 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 443 struct efx_mac_stats *mac_stats = &efx->mac_stats;
444 struct efx_ethtool_stat *stat;
445 struct efx_channel *channel;
446 int i;
447
448 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
449
450 /* Update MAC and NIC statistics */
eeda3fd6 451 dev_get_stats(net_dev);
8ceee660
BH		 452
453 /* Fill detailed statistics buffer */
454 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
455 stat = &efx_ethtool_stats[i];
456 switch (stat->source) {
457 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
458 data[i] = stat->get_stat((void *)mac_stats +
459 stat->offset);
460 break;
461 case EFX_ETHTOOL_STAT_SOURCE_nic:
462 data[i] = stat->get_stat((void *)efx + stat->offset);
463 break;
464 case EFX_ETHTOOL_STAT_SOURCE_channel:
465 data[i] = 0;
466 efx_for_each_channel(channel, efx)
467 data[i] += stat->get_stat((void *)channel +
468 stat->offset);
469 break;
470 }
471 }
472}
473
c383b537
BH		 474static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
475{
476 struct efx_nic *efx = netdev_priv(net_dev);
477 unsigned long features = efx->type->offload_features & NETIF_F_ALL_CSUM;
478
479 if (enable)
480 net_dev->features |= features;
481 else
482 net_dev->features &= ~features;
483
484 return 0;
485}
486
8ceee660
BH		 487static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
488{
767e468c 489 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 490
491 /* No way to stop the hardware doing the checks; we just
492 * ignore the result.
493 */
dc8cfa55 494 efx->rx_checksum_enabled = !!enable;
8ceee660
BH		 495
496 return 0;
497}
498
499static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
500{
767e468c 501 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 502
503 return efx->rx_checksum_enabled;
504}
505
3273c2e8
BH		 506static void efx_ethtool_self_test(struct net_device *net_dev,
507 struct ethtool_test *test, u64 *data)
508{
767e468c 509 struct efx_nic *efx = netdev_priv(net_dev);
3273c2e8 510 struct efx_self_tests efx_tests;
2ef3068e 511 int already_up;
3273c2e8
BH		 512 int rc;
513
514 ASSERT_RTNL();
515 if (efx->state != STATE_RUNNING) {
516 rc = -EIO;
517 goto fail1;
518 }
519
520 /* We need rx buffers and interrupts. */
521 already_up = (efx->net_dev->flags & IFF_UP);
522 if (!already_up) {
523 rc = dev_open(efx->net_dev);
524 if (rc) {
525 EFX_ERR(efx, "failed opening device.\n");
526 goto fail2;
527 }
528 }
529
530 memset(&efx_tests, 0, sizeof(efx_tests));
3273c2e8 531
2ef3068e 532 rc = efx_selftest(efx, &efx_tests, test->flags);
3273c2e8 533
3273c2e8
BH		 534 if (!already_up)
535 dev_close(efx->net_dev);
536
2ef3068e
BH		 537 EFX_LOG(efx, "%s %sline self-tests\n",
538 rc == 0 ? "passed" : "failed",
539 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
3273c2e8
BH		 540
541 fail2:
542 fail1:
543 /* Fill ethtool results structures */
544 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
545 if (rc)
546 test->flags |= ETH_TEST_FL_FAILED;
547}
548
8ceee660
BH		 549/* Restart autonegotiation */
550static int efx_ethtool_nway_reset(struct net_device *net_dev)
551{
767e468c 552 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 553
68e7f45e 554 return mdio45_nway_restart(&efx->mdio);
8ceee660
BH		 555}
556
557static u32 efx_ethtool_get_link(struct net_device *net_dev)
558{
767e468c 559 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 560
eb50c0d6 561 return efx->link_state.up;
8ceee660
BH		 562}
563
4a5b504d
BH		 564static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
565{
566 struct efx_nic *efx = netdev_priv(net_dev);
567 struct efx_spi_device *spi = efx->spi_eeprom;
568
569 if (!spi)
570 return 0;
0a95f563
BH		 571 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
572 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
4a5b504d
BH		 573}
574
575static int efx_ethtool_get_eeprom(struct net_device *net_dev,
576 struct ethtool_eeprom *eeprom, u8 *buf)
577{
578 struct efx_nic *efx = netdev_priv(net_dev);
579 struct efx_spi_device *spi = efx->spi_eeprom;
580 size_t len;
581 int rc;
582
ca54a9f5
BH		 583 rc = mutex_lock_interruptible(&efx->spi_lock);
584 if (rc)
585 return rc;
76884835
BH		 586 rc = falcon_spi_read(efx, spi,
587 eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
4a5b504d 588 eeprom->len, &len, buf);
f4150724 589 mutex_unlock(&efx->spi_lock);
ca54a9f5 590
4a5b504d
BH		 591 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
592 eeprom->len = len;
593 return rc;
594}
595
596static int efx_ethtool_set_eeprom(struct net_device *net_dev,
597 struct ethtool_eeprom *eeprom, u8 *buf)
598{
599 struct efx_nic *efx = netdev_priv(net_dev);
600 struct efx_spi_device *spi = efx->spi_eeprom;
601 size_t len;
602 int rc;
603
604 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
605 return -EINVAL;
606
ca54a9f5
BH		 607 rc = mutex_lock_interruptible(&efx->spi_lock);
608 if (rc)
609 return rc;
76884835
BH		 610 rc = falcon_spi_write(efx, spi,
611 eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
4a5b504d 612 eeprom->len, &len, buf);
f4150724 613 mutex_unlock(&efx->spi_lock);
ca54a9f5 614
4a5b504d
BH		 615 eeprom->len = len;
616 return rc;
617}
618
8ceee660
BH		 619static int efx_ethtool_get_coalesce(struct net_device *net_dev,
620 struct ethtool_coalesce *coalesce)
621{
767e468c 622 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 623 struct efx_tx_queue *tx_queue;
8ceee660
BH		 624 struct efx_channel *channel;
625
626 memset(coalesce, 0, sizeof(*coalesce));
627
628 /* Find lowest IRQ moderation across all used TX queues */
629 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
630 efx_for_each_tx_queue(tx_queue, efx) {
631 channel = tx_queue->channel;
632 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
633 if (channel->used_flags != EFX_USED_BY_RX_TX)
634 coalesce->tx_coalesce_usecs_irq =
635 channel->irq_moderation;
636 else
637 coalesce->tx_coalesce_usecs_irq = 0;
638 }
639 }
640
6fb70fd1
BH		 641 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
642 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
8ceee660 643
152b6a62
BH		 644 coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
645 coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
0d86ebd8 646
8ceee660
BH		 647 return 0;
648}
649
650/* Set coalescing parameters
651 * The difficulties occur for shared channels
652 */
653static int efx_ethtool_set_coalesce(struct net_device *net_dev,
654 struct ethtool_coalesce *coalesce)
655{
767e468c 656 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 657 struct efx_channel *channel;
658 struct efx_tx_queue *tx_queue;
6fb70fd1 659 unsigned tx_usecs, rx_usecs, adaptive;
8ceee660 660
6fb70fd1 661 if (coalesce->use_adaptive_tx_coalesce)
8ceee660
BH		 662 return -EOPNOTSUPP;
663
664 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
665 EFX_ERR(efx, "invalid coalescing setting. "
666 "Only rx/tx_coalesce_usecs_irq are supported\n");
667 return -EOPNOTSUPP;
668 }
669
670 rx_usecs = coalesce->rx_coalesce_usecs_irq;
671 tx_usecs = coalesce->tx_coalesce_usecs_irq;
6fb70fd1 672 adaptive = coalesce->use_adaptive_rx_coalesce;
8ceee660
BH		 673
674 /* If the channel is shared only allow RX parameters to be set */
675 efx_for_each_tx_queue(tx_queue, efx) {
676 if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
677 tx_usecs) {
678 EFX_ERR(efx, "Channel is shared. "
679 "Only RX coalescing may be set\n");
680 return -EOPNOTSUPP;
681 }
682 }
683
6fb70fd1 684 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
8ceee660 685 efx_for_each_channel(channel, efx)
ef2b90ee 686 efx->type->push_irq_moderation(channel);
8ceee660
BH		 687
688 return 0;
689}
690
691static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
692 struct ethtool_pauseparam *pause)
693{
767e468c 694 struct efx_nic *efx = netdev_priv(net_dev);
d3245b28
BH		 695 enum efx_fc_type wanted_fc, old_fc;
696 u32 old_adv;
04cc8cac 697 bool reset;
d3245b28
BH		 698 int rc = 0;
699
700 mutex_lock(&efx->mac_lock);
8ceee660 701
04cc8cac
BH		 702 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
703 (pause->tx_pause ? EFX_FC_TX : 0) |
704 (pause->autoneg ? EFX_FC_AUTO : 0));
705
706 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
707 EFX_LOG(efx, "Flow control unsupported: tx ON rx OFF\n");
d3245b28
BH		 708 rc = -EINVAL;
709 goto out;
04cc8cac
BH		 710 }
711
d3245b28
BH		 712 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
713 EFX_LOG(efx, "Autonegotiation is disabled\n");
714 rc = -EINVAL;
715 goto out;
04cc8cac
BH		 716 }
717
718 /* TX flow control may automatically turn itself off if the
719 * link partner (intermittently) stops responding to pause
720 * frames. There isn't any indication that this has happened,
721 * so the best we do is leave it up to the user to spot this
722 * and fix it be cycling transmit flow control on this end. */
723 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
724 if (EFX_WORKAROUND_11482(efx) && reset) {
daeda630 725 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
04cc8cac 726 /* Recover by resetting the EM block */
d3245b28
BH		 727 falcon_stop_nic_stats(efx);
728 falcon_drain_tx_fifo(efx);
729 efx->mac_op->reconfigure(efx);
730 falcon_start_nic_stats(efx);
04cc8cac
BH		 731 } else {
732 /* Schedule a reset to recover */
733 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
734 }
735 }
736
d3245b28
BH		 737 old_adv = efx->link_advertising;
738 old_fc = efx->wanted_fc;
739 efx_link_set_wanted_fc(efx, wanted_fc);
740 if (efx->link_advertising != old_adv ||
741 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
742 rc = efx->phy_op->reconfigure(efx);
743 if (rc) {
744 EFX_ERR(efx, "Unable to advertise requested flow "
745 "control setting\n");
746 goto out;
747 }
748 }
04cc8cac 749
d3245b28
BH		 750 /* Reconfigure the MAC. The PHY *may* generate a link state change event
751 * if the user just changed the advertised capabilities, but there's no
752 * harm doing this twice */
753 efx->mac_op->reconfigure(efx);
04cc8cac 754
d3245b28 755out:
04cc8cac 756 mutex_unlock(&efx->mac_lock);
8ceee660 757
d3245b28 758 return rc;
8ceee660
BH		 759}
760
761static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
762 struct ethtool_pauseparam *pause)
763{
767e468c 764 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 765
04cc8cac
BH		 766 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
767 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
768 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
8ceee660
BH		 769}
770
771
89c758fa
BH		 772static void efx_ethtool_get_wol(struct net_device *net_dev,
773 struct ethtool_wolinfo *wol)
774{
775 struct efx_nic *efx = netdev_priv(net_dev);
776 return efx->type->get_wol(efx, wol);
777}
778
779
780static int efx_ethtool_set_wol(struct net_device *net_dev,
781 struct ethtool_wolinfo *wol)
782{
783 struct efx_nic *efx = netdev_priv(net_dev);
784 return efx->type->set_wol(efx, wol->wolopts);
785}
786
eb9f6744
BH		 787extern int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
788{
789 struct efx_nic *efx = netdev_priv(net_dev);
790 enum reset_type method;
791 enum {
792 ETH_RESET_EFX_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
793 ETH_RESET_OFFLOAD | ETH_RESET_MAC)
794 };
795
796 /* Check for minimal reset flags */
797 if ((*flags & ETH_RESET_EFX_INVISIBLE) != ETH_RESET_EFX_INVISIBLE)
798 return -EINVAL;
799 *flags ^= ETH_RESET_EFX_INVISIBLE;
800 method = RESET_TYPE_INVISIBLE;
801
802 if (*flags & ETH_RESET_PHY) {
803 *flags ^= ETH_RESET_PHY;
804 method = RESET_TYPE_ALL;
805 }
806
807 if ((*flags & efx->type->reset_world_flags) ==
808 efx->type->reset_world_flags) {
809 *flags ^= efx->type->reset_world_flags;
810 method = RESET_TYPE_WORLD;
811 }
812
813 return efx_reset(efx, method);
814}
815
0fc0b732 816const struct ethtool_ops efx_ethtool_ops = {
8ceee660
BH		 817 .get_settings = efx_ethtool_get_settings,
818 .set_settings = efx_ethtool_set_settings,
819 .get_drvinfo = efx_ethtool_get_drvinfo,
820 .nway_reset = efx_ethtool_nway_reset,
821 .get_link = efx_ethtool_get_link,
4a5b504d
BH		 822 .get_eeprom_len = efx_ethtool_get_eeprom_len,
823 .get_eeprom = efx_ethtool_get_eeprom,
824 .set_eeprom = efx_ethtool_set_eeprom,
8ceee660
BH		 825 .get_coalesce = efx_ethtool_get_coalesce,
826 .set_coalesce = efx_ethtool_set_coalesce,
827 .get_pauseparam = efx_ethtool_get_pauseparam,
828 .set_pauseparam = efx_ethtool_set_pauseparam,
829 .get_rx_csum = efx_ethtool_get_rx_csum,
830 .set_rx_csum = efx_ethtool_set_rx_csum,
831 .get_tx_csum = ethtool_op_get_tx_csum,
c383b537
BH		 832 /* Need to enable/disable IPv6 too */
833 .set_tx_csum = efx_ethtool_set_tx_csum,
8ceee660
BH		 834 .get_sg = ethtool_op_get_sg,
835 .set_sg = ethtool_op_set_sg,
b9b39b62 836 .get_tso = ethtool_op_get_tso,
60ac1065 837 .set_tso = ethtool_op_set_tso,
8ceee660
BH		 838 .get_flags = ethtool_op_get_flags,
839 .set_flags = ethtool_op_set_flags,
3594e131 840 .get_sset_count = efx_ethtool_get_sset_count,
3273c2e8 841 .self_test = efx_ethtool_self_test,
8ceee660
BH		 842 .get_strings = efx_ethtool_get_strings,
843 .phys_id = efx_ethtool_phys_id,
8ceee660 844 .get_ethtool_stats = efx_ethtool_get_stats,
89c758fa
BH		 845 .get_wol = efx_ethtool_get_wol,
846 .set_wol = efx_ethtool_set_wol,
eb9f6744 847 .reset = efx_ethtool_reset,
8ceee660 848};
Linux kernel - Deliverables
This page took 0.26795 seconds and 5 git commands to generate.