projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
sfc: Allow changing the DMA ring sizes dynamically via ethtool
[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.
906bb26c 4 * Copyright 2006-2009 Solarflare Communications Inc.
8ceee660
BH		 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
754c653a 199 /* GMAC does not support 1000Mbps HD */
177dfcd8 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
754c653a 219 /* GMAC does not support 1000Mbps HD */
177dfcd8 220 if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
62776d03
BH		 221 netif_dbg(efx, drv, efx->net_dev,
222 "rejecting unsupported 1000Mbps HD setting\n");
177dfcd8
BH		 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 236
c5d5f5fd 237 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
8ceee660 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
5b98c1bf
BH		 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
62776d03
BH		 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
3273c2e8
BH		 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)
740ced99
BH		 277 * @unit_format: Unit name format (e.g. "chan\%d")
278 * @unit_id: Unit id (e.g. 0 for "chan0")
3273c2e8 279 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
740ced99 280 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
3273c2e8
BH		 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) {
11e66966
BH		 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);
3273c2e8
BH		 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),
740ced99 306 "%-6s %-24s", unit_str.name, test_str.name);
3273c2e8
BH		 307 }
308}
309
740ced99 310#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
3273c2e8
BH		 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) \
c459302d 314 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
3273c2e8
BH		 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{
f7d12cdc 331 struct efx_channel *channel = efx_get_channel(efx, 0);
3273c2e8
BH		 332 struct efx_tx_queue *tx_queue;
333
f7d12cdc 334 efx_for_each_channel_tx_queue(tx_queue, channel) {
3273c2e8
BH		 335 efx_fill_test(test_index++, strings, data,
336 &lb_tests->tx_sent[tx_queue->queue],
337 EFX_TX_QUEUE_NAME(tx_queue),
338 EFX_LOOPBACK_NAME(mode, "tx_sent"));
339 efx_fill_test(test_index++, strings, data,
340 &lb_tests->tx_done[tx_queue->queue],
341 EFX_TX_QUEUE_NAME(tx_queue),
342 EFX_LOOPBACK_NAME(mode, "tx_done"));
343 }
344 efx_fill_test(test_index++, strings, data,
345 &lb_tests->rx_good,
11e66966 346 "rx", 0,
3273c2e8
BH		 347 EFX_LOOPBACK_NAME(mode, "rx_good"));
348 efx_fill_test(test_index++, strings, data,
349 &lb_tests->rx_bad,
11e66966 350 "rx", 0,
3273c2e8
BH		 351 EFX_LOOPBACK_NAME(mode, "rx_bad"));
352
353 return test_index;
354}
355
356/**
357 * efx_ethtool_fill_self_tests - get self-test details
358 * @efx: Efx NIC
359 * @tests: Efx self-test results structure, or %NULL
360 * @strings: Ethtool strings, or %NULL
361 * @data: Ethtool test results, or %NULL
362 */
363static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
364 struct efx_self_tests *tests,
365 struct ethtool_string *strings,
366 u64 *data)
367{
368 struct efx_channel *channel;
1796721a 369 unsigned int n = 0, i;
3273c2e8
BH		 370 enum efx_loopback_mode mode;
371
4f16c073
BH		 372 efx_fill_test(n++, strings, data, &tests->phy_alive,
373 "phy", 0, "alive", NULL);
8c8661e4
BH		 374 efx_fill_test(n++, strings, data, &tests->nvram,
375 "core", 0, "nvram", NULL);
3273c2e8
BH		 376 efx_fill_test(n++, strings, data, &tests->interrupt,
377 "core", 0, "interrupt", NULL);
378
379 /* Event queues */
380 efx_for_each_channel(channel, efx) {
381 efx_fill_test(n++, strings, data,
382 &tests->eventq_dma[channel->channel],
383 EFX_CHANNEL_NAME(channel),
384 "eventq.dma", NULL);
385 efx_fill_test(n++, strings, data,
386 &tests->eventq_int[channel->channel],
387 EFX_CHANNEL_NAME(channel),
388 "eventq.int", NULL);
389 efx_fill_test(n++, strings, data,
390 &tests->eventq_poll[channel->channel],
391 EFX_CHANNEL_NAME(channel),
392 "eventq.poll", NULL);
393 }
394
8c8661e4
BH		 395 efx_fill_test(n++, strings, data, &tests->registers,
396 "core", 0, "registers", NULL);
1796721a 397
c1c4f453
BH		 398 if (efx->phy_op->run_tests != NULL) {
399 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
400
401 for (i = 0; true; ++i) {
402 const char *name;
403
404 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
405 name = efx->phy_op->test_name(efx, i);
406 if (name == NULL)
407 break;
408
4f16c073 409 efx_fill_test(n++, strings, data, &tests->phy_ext[i],
c1c4f453
BH		 410 "phy", 0, name, NULL);
411 }
412 }
3273c2e8
BH		 413
414 /* Loopback tests */
8c8661e4 415 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
3273c2e8
BH		 416 if (!(efx->loopback_modes & (1 << mode)))
417 continue;
418 n = efx_fill_loopback_test(efx,
419 &tests->loopback[mode], mode, n,
420 strings, data);
421 }
422
423 return n;
424}
425
3594e131
BH		 426static int efx_ethtool_get_sset_count(struct net_device *net_dev,
427 int string_set)
8ceee660 428{
3594e131
BH		 429 switch (string_set) {
430 case ETH_SS_STATS:
431 return EFX_ETHTOOL_NUM_STATS;
432 case ETH_SS_TEST:
433 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
434 NULL, NULL, NULL);
435 default:
436 return -EINVAL;
437 }
3273c2e8
BH		 438}
439
8ceee660
BH		 440static void efx_ethtool_get_strings(struct net_device *net_dev,
441 u32 string_set, u8 *strings)
442{
767e468c 443 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 444 struct ethtool_string *ethtool_strings =
445 (struct ethtool_string *)strings;
446 int i;
447
3273c2e8
BH		 448 switch (string_set) {
449 case ETH_SS_STATS:
8ceee660
BH		 450 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
451 strncpy(ethtool_strings[i].name,
452 efx_ethtool_stats[i].name,
453 sizeof(ethtool_strings[i].name));
3273c2e8
BH		 454 break;
455 case ETH_SS_TEST:
456 efx_ethtool_fill_self_tests(efx, NULL,
457 ethtool_strings, NULL);
458 break;
459 default:
460 /* No other string sets */
461 break;
462 }
8ceee660
BH		 463}
464
465static void efx_ethtool_get_stats(struct net_device *net_dev,
466 struct ethtool_stats *stats,
467 u64 *data)
468{
767e468c 469 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 470 struct efx_mac_stats *mac_stats = &efx->mac_stats;
471 struct efx_ethtool_stat *stat;
472 struct efx_channel *channel;
28172739 473 struct rtnl_link_stats64 temp;
8ceee660
BH		 474 int i;
475
476 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
477
478 /* Update MAC and NIC statistics */
28172739 479 dev_get_stats(net_dev, &temp);
8ceee660
BH		 480
481 /* Fill detailed statistics buffer */
482 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
483 stat = &efx_ethtool_stats[i];
484 switch (stat->source) {
485 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
486 data[i] = stat->get_stat((void *)mac_stats +
487 stat->offset);
488 break;
489 case EFX_ETHTOOL_STAT_SOURCE_nic:
490 data[i] = stat->get_stat((void *)efx + stat->offset);
491 break;
492 case EFX_ETHTOOL_STAT_SOURCE_channel:
493 data[i] = 0;
494 efx_for_each_channel(channel, efx)
495 data[i] += stat->get_stat((void *)channel +
496 stat->offset);
497 break;
498 }
499 }
500}
501
738a8f4b
BH		 502static int efx_ethtool_set_tso(struct net_device *net_dev, u32 enable)
503{
504 struct efx_nic *efx __attribute__ ((unused)) = netdev_priv(net_dev);
505 unsigned long features;
506
507 features = NETIF_F_TSO;
508 if (efx->type->offload_features & NETIF_F_V6_CSUM)
509 features |= NETIF_F_TSO6;
510
511 if (enable)
512 net_dev->features |= features;
513 else
514 net_dev->features &= ~features;
515
516 return 0;
517}
518
c383b537
BH		 519static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
520{
521 struct efx_nic *efx = netdev_priv(net_dev);
522 unsigned long features = efx->type->offload_features & NETIF_F_ALL_CSUM;
523
524 if (enable)
525 net_dev->features |= features;
526 else
527 net_dev->features &= ~features;
528
529 return 0;
530}
531
8ceee660
BH		 532static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
533{
767e468c 534 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 535
536 /* No way to stop the hardware doing the checks; we just
537 * ignore the result.
538 */
dc8cfa55 539 efx->rx_checksum_enabled = !!enable;
8ceee660
BH		 540
541 return 0;
542}
543
544static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
545{
767e468c 546 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 547
548 return efx->rx_checksum_enabled;
549}
550
39c9cf07
BH		 551static int efx_ethtool_set_flags(struct net_device *net_dev, u32 data)
552{
553 struct efx_nic *efx = netdev_priv(net_dev);
554 u32 supported = efx->type->offload_features & ETH_FLAG_RXHASH;
555
1437ce39 556 return ethtool_op_set_flags(net_dev, data, supported);
39c9cf07
BH		 557}
558
3273c2e8
BH		 559static void efx_ethtool_self_test(struct net_device *net_dev,
560 struct ethtool_test *test, u64 *data)
561{
767e468c 562 struct efx_nic *efx = netdev_priv(net_dev);
3273c2e8 563 struct efx_self_tests efx_tests;
2ef3068e 564 int already_up;
3273c2e8
BH		 565 int rc;
566
567 ASSERT_RTNL();
568 if (efx->state != STATE_RUNNING) {
569 rc = -EIO;
570 goto fail1;
571 }
572
573 /* We need rx buffers and interrupts. */
574 already_up = (efx->net_dev->flags & IFF_UP);
575 if (!already_up) {
576 rc = dev_open(efx->net_dev);
577 if (rc) {
62776d03
BH		 578 netif_err(efx, drv, efx->net_dev,
579 "failed opening device.\n");
3273c2e8
BH		 580 goto fail2;
581 }
582 }
583
584 memset(&efx_tests, 0, sizeof(efx_tests));
3273c2e8 585
2ef3068e 586 rc = efx_selftest(efx, &efx_tests, test->flags);
3273c2e8 587
3273c2e8
BH		 588 if (!already_up)
589 dev_close(efx->net_dev);
590
62776d03
BH		 591 netif_dbg(efx, drv, efx->net_dev, "%s %sline self-tests\n",
592 rc == 0 ? "passed" : "failed",
593 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
3273c2e8
BH		 594
595 fail2:
596 fail1:
597 /* Fill ethtool results structures */
598 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
599 if (rc)
600 test->flags |= ETH_TEST_FL_FAILED;
601}
602
8ceee660
BH		 603/* Restart autonegotiation */
604static int efx_ethtool_nway_reset(struct net_device *net_dev)
605{
767e468c 606 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 607
68e7f45e 608 return mdio45_nway_restart(&efx->mdio);
8ceee660
BH		 609}
610
611static u32 efx_ethtool_get_link(struct net_device *net_dev)
612{
767e468c 613 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 614
eb50c0d6 615 return efx->link_state.up;
8ceee660
BH		 616}
617
4a5b504d
BH		 618static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
619{
620 struct efx_nic *efx = netdev_priv(net_dev);
621 struct efx_spi_device *spi = efx->spi_eeprom;
622
623 if (!spi)
624 return 0;
0a95f563
BH		 625 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
626 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
4a5b504d
BH		 627}
628
629static int efx_ethtool_get_eeprom(struct net_device *net_dev,
630 struct ethtool_eeprom *eeprom, u8 *buf)
631{
632 struct efx_nic *efx = netdev_priv(net_dev);
633 struct efx_spi_device *spi = efx->spi_eeprom;
634 size_t len;
635 int rc;
636
ca54a9f5
BH		 637 rc = mutex_lock_interruptible(&efx->spi_lock);
638 if (rc)
639 return rc;
76884835
BH		 640 rc = falcon_spi_read(efx, spi,
641 eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
4a5b504d 642 eeprom->len, &len, buf);
f4150724 643 mutex_unlock(&efx->spi_lock);
ca54a9f5 644
4a5b504d
BH		 645 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
646 eeprom->len = len;
647 return rc;
648}
649
650static int efx_ethtool_set_eeprom(struct net_device *net_dev,
651 struct ethtool_eeprom *eeprom, u8 *buf)
652{
653 struct efx_nic *efx = netdev_priv(net_dev);
654 struct efx_spi_device *spi = efx->spi_eeprom;
655 size_t len;
656 int rc;
657
658 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
659 return -EINVAL;
660
ca54a9f5
BH		 661 rc = mutex_lock_interruptible(&efx->spi_lock);
662 if (rc)
663 return rc;
76884835
BH		 664 rc = falcon_spi_write(efx, spi,
665 eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
4a5b504d 666 eeprom->len, &len, buf);
f4150724 667 mutex_unlock(&efx->spi_lock);
ca54a9f5 668
4a5b504d
BH		 669 eeprom->len = len;
670 return rc;
671}
672
8ceee660
BH		 673static int efx_ethtool_get_coalesce(struct net_device *net_dev,
674 struct ethtool_coalesce *coalesce)
675{
767e468c 676 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 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);
f7d12cdc
BH		 683 efx_for_each_channel(channel, efx) {
684 if (!efx_channel_get_tx_queue(channel, 0))
685 continue;
8ceee660 686 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
a4900ac9 687 if (channel->channel < efx->n_rx_channels)
8ceee660
BH		 688 coalesce->tx_coalesce_usecs_irq =
689 channel->irq_moderation;
690 else
691 coalesce->tx_coalesce_usecs_irq = 0;
692 }
693 }
694
6fb70fd1
BH		 695 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
696 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
8ceee660 697
152b6a62
BH		 698 coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
699 coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
0d86ebd8 700
8ceee660
BH		 701 return 0;
702}
703
704/* Set coalescing parameters
705 * The difficulties occur for shared channels
706 */
707static int efx_ethtool_set_coalesce(struct net_device *net_dev,
708 struct ethtool_coalesce *coalesce)
709{
767e468c 710 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 711 struct efx_channel *channel;
6fb70fd1 712 unsigned tx_usecs, rx_usecs, adaptive;
8ceee660 713
6fb70fd1 714 if (coalesce->use_adaptive_tx_coalesce)
8ceee660
BH		 715 return -EOPNOTSUPP;
716
717 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
62776d03
BH		 718 netif_err(efx, drv, efx->net_dev, "invalid coalescing setting. "
719 "Only rx/tx_coalesce_usecs_irq are supported\n");
8ceee660
BH		 720 return -EOPNOTSUPP;
721 }
722
723 rx_usecs = coalesce->rx_coalesce_usecs_irq;
724 tx_usecs = coalesce->tx_coalesce_usecs_irq;
6fb70fd1 725 adaptive = coalesce->use_adaptive_rx_coalesce;
8ceee660
BH		 726
727 /* If the channel is shared only allow RX parameters to be set */
f7d12cdc
BH		 728 efx_for_each_channel(channel, efx) {
729 if (efx_channel_get_rx_queue(channel) &&
730 efx_channel_get_tx_queue(channel, 0) &&
8ceee660 731 tx_usecs) {
62776d03
BH		 732 netif_err(efx, drv, efx->net_dev, "Channel is shared. "
733 "Only RX coalescing may be set\n");
8ceee660
BH		 734 return -EOPNOTSUPP;
735 }
736 }
737
6fb70fd1 738 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
8ceee660 739 efx_for_each_channel(channel, efx)
ef2b90ee 740 efx->type->push_irq_moderation(channel);
8ceee660
BH		 741
742 return 0;
743}
744
4642610c
BH		 745static void efx_ethtool_get_ringparam(struct net_device *net_dev,
746 struct ethtool_ringparam *ring)
747{
748 struct efx_nic *efx = netdev_priv(net_dev);
749
750 ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
751 ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
752 ring->rx_mini_max_pending = 0;
753 ring->rx_jumbo_max_pending = 0;
754 ring->rx_pending = efx->rxq_entries;
755 ring->tx_pending = efx->txq_entries;
756 ring->rx_mini_pending = 0;
757 ring->rx_jumbo_pending = 0;
758}
759
760static int efx_ethtool_set_ringparam(struct net_device *net_dev,
761 struct ethtool_ringparam *ring)
762{
763 struct efx_nic *efx = netdev_priv(net_dev);
764
765 if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
766 ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
767 ring->tx_pending > EFX_MAX_DMAQ_SIZE)
768 return -EINVAL;
769
770 if (ring->rx_pending < EFX_MIN_RING_SIZE ||
771 ring->tx_pending < EFX_MIN_RING_SIZE) {
772 netif_err(efx, drv, efx->net_dev,
773 "TX and RX queues cannot be smaller than %ld\n",
774 EFX_MIN_RING_SIZE);
775 return -EINVAL;
776 }
777
778 return efx_realloc_channels(efx, ring->rx_pending, ring->tx_pending);
779}
780
8ceee660
BH		 781static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
782 struct ethtool_pauseparam *pause)
783{
767e468c 784 struct efx_nic *efx = netdev_priv(net_dev);
d3245b28
BH		 785 enum efx_fc_type wanted_fc, old_fc;
786 u32 old_adv;
04cc8cac 787 bool reset;
d3245b28
BH		 788 int rc = 0;
789
790 mutex_lock(&efx->mac_lock);
8ceee660 791
04cc8cac
BH		 792 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
793 (pause->tx_pause ? EFX_FC_TX : 0) |
794 (pause->autoneg ? EFX_FC_AUTO : 0));
795
796 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
62776d03
BH		 797 netif_dbg(efx, drv, efx->net_dev,
798 "Flow control unsupported: tx ON rx OFF\n");
d3245b28
BH		 799 rc = -EINVAL;
800 goto out;
04cc8cac
BH		 801 }
802
d3245b28 803 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
62776d03
BH		 804 netif_dbg(efx, drv, efx->net_dev,
805 "Autonegotiation is disabled\n");
d3245b28
BH		 806 rc = -EINVAL;
807 goto out;
04cc8cac
BH		 808 }
809
810 /* TX flow control may automatically turn itself off if the
811 * link partner (intermittently) stops responding to pause
812 * frames. There isn't any indication that this has happened,
813 * so the best we do is leave it up to the user to spot this
814 * and fix it be cycling transmit flow control on this end. */
815 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
816 if (EFX_WORKAROUND_11482(efx) && reset) {
daeda630 817 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
04cc8cac 818 /* Recover by resetting the EM block */
d3245b28
BH		 819 falcon_stop_nic_stats(efx);
820 falcon_drain_tx_fifo(efx);
821 efx->mac_op->reconfigure(efx);
822 falcon_start_nic_stats(efx);
04cc8cac
BH		 823 } else {
824 /* Schedule a reset to recover */
825 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
826 }
827 }
828
d3245b28
BH		 829 old_adv = efx->link_advertising;
830 old_fc = efx->wanted_fc;
831 efx_link_set_wanted_fc(efx, wanted_fc);
832 if (efx->link_advertising != old_adv ||
833 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
834 rc = efx->phy_op->reconfigure(efx);
835 if (rc) {
62776d03
BH		 836 netif_err(efx, drv, efx->net_dev,
837 "Unable to advertise requested flow "
838 "control setting\n");
d3245b28
BH		 839 goto out;
840 }
841 }
04cc8cac 842
d3245b28
BH		 843 /* Reconfigure the MAC. The PHY *may* generate a link state change event
844 * if the user just changed the advertised capabilities, but there's no
845 * harm doing this twice */
846 efx->mac_op->reconfigure(efx);
04cc8cac 847
d3245b28 848out:
04cc8cac 849 mutex_unlock(&efx->mac_lock);
8ceee660 850
d3245b28 851 return rc;
8ceee660
BH		 852}
853
854static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
855 struct ethtool_pauseparam *pause)
856{
767e468c 857 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 858
04cc8cac
BH		 859 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
860 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
861 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
8ceee660
BH		 862}
863
864
89c758fa
BH		 865static void efx_ethtool_get_wol(struct net_device *net_dev,
866 struct ethtool_wolinfo *wol)
867{
868 struct efx_nic *efx = netdev_priv(net_dev);
869 return efx->type->get_wol(efx, wol);
870}
871
872
873static int efx_ethtool_set_wol(struct net_device *net_dev,
874 struct ethtool_wolinfo *wol)
875{
876 struct efx_nic *efx = netdev_priv(net_dev);
877 return efx->type->set_wol(efx, wol->wolopts);
878}
879
eb9f6744
BH		 880extern int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
881{
882 struct efx_nic *efx = netdev_priv(net_dev);
883 enum reset_type method;
884 enum {
885 ETH_RESET_EFX_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
886 ETH_RESET_OFFLOAD | ETH_RESET_MAC)
887 };
888
889 /* Check for minimal reset flags */
890 if ((*flags & ETH_RESET_EFX_INVISIBLE) != ETH_RESET_EFX_INVISIBLE)
891 return -EINVAL;
892 *flags ^= ETH_RESET_EFX_INVISIBLE;
893 method = RESET_TYPE_INVISIBLE;
894
895 if (*flags & ETH_RESET_PHY) {
896 *flags ^= ETH_RESET_PHY;
897 method = RESET_TYPE_ALL;
898 }
899
900 if ((*flags & efx->type->reset_world_flags) ==
901 efx->type->reset_world_flags) {
902 *flags ^= efx->type->reset_world_flags;
903 method = RESET_TYPE_WORLD;
904 }
905
906 return efx_reset(efx, method);
907}
908
765c9f46
BH		 909static int
910efx_ethtool_get_rxnfc(struct net_device *net_dev,
911 struct ethtool_rxnfc *info, void *rules __always_unused)
912{
913 struct efx_nic *efx = netdev_priv(net_dev);
914
915 switch (info->cmd) {
916 case ETHTOOL_GRXRINGS:
917 info->data = efx->n_rx_channels;
918 return 0;
919
920 case ETHTOOL_GRXFH: {
921 unsigned min_revision = 0;
922
923 info->data = 0;
924 switch (info->flow_type) {
925 case TCP_V4_FLOW:
926 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
927 /* fall through */
928 case UDP_V4_FLOW:
929 case SCTP_V4_FLOW:
930 case AH_ESP_V4_FLOW:
931 case IPV4_FLOW:
932 info->data |= RXH_IP_SRC | RXH_IP_DST;
933 min_revision = EFX_REV_FALCON_B0;
934 break;
935 case TCP_V6_FLOW:
936 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
937 /* fall through */
938 case UDP_V6_FLOW:
939 case SCTP_V6_FLOW:
940 case AH_ESP_V6_FLOW:
941 case IPV6_FLOW:
942 info->data |= RXH_IP_SRC | RXH_IP_DST;
943 min_revision = EFX_REV_SIENA_A0;
944 break;
945 default:
946 break;
947 }
948 if (efx_nic_rev(efx) < min_revision)
949 info->data = 0;
950 return 0;
951 }
952
953 default:
954 return -EOPNOTSUPP;
955 }
956}
957
958static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
959 struct ethtool_rxfh_indir *indir)
960{
961 struct efx_nic *efx = netdev_priv(net_dev);
962 size_t copy_size =
963 min_t(size_t, indir->size, ARRAY_SIZE(efx->rx_indir_table));
964
965 if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
966 return -EOPNOTSUPP;
967
968 indir->size = ARRAY_SIZE(efx->rx_indir_table);
969 memcpy(indir->ring_index, efx->rx_indir_table,
970 copy_size * sizeof(indir->ring_index[0]));
971 return 0;
972}
973
974static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
975 const struct ethtool_rxfh_indir *indir)
976{
977 struct efx_nic *efx = netdev_priv(net_dev);
978 size_t i;
979
980 if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
981 return -EOPNOTSUPP;
982
983 /* Validate size and indices */
984 if (indir->size != ARRAY_SIZE(efx->rx_indir_table))
985 return -EINVAL;
986 for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
987 if (indir->ring_index[i] >= efx->n_rx_channels)
988 return -EINVAL;
989
990 memcpy(efx->rx_indir_table, indir->ring_index,
991 sizeof(efx->rx_indir_table));
992 efx_nic_push_rx_indir_table(efx);
993 return 0;
994}
995
0fc0b732 996const struct ethtool_ops efx_ethtool_ops = {
8ceee660
BH		 997 .get_settings = efx_ethtool_get_settings,
998 .set_settings = efx_ethtool_set_settings,
999 .get_drvinfo = efx_ethtool_get_drvinfo,
5b98c1bf
BH		 1000 .get_regs_len = efx_ethtool_get_regs_len,
1001 .get_regs = efx_ethtool_get_regs,
62776d03
BH		 1002 .get_msglevel = efx_ethtool_get_msglevel,
1003 .set_msglevel = efx_ethtool_set_msglevel,
8ceee660
BH		 1004 .nway_reset = efx_ethtool_nway_reset,
1005 .get_link = efx_ethtool_get_link,
4a5b504d
BH		 1006 .get_eeprom_len = efx_ethtool_get_eeprom_len,
1007 .get_eeprom = efx_ethtool_get_eeprom,
1008 .set_eeprom = efx_ethtool_set_eeprom,
8ceee660
BH		 1009 .get_coalesce = efx_ethtool_get_coalesce,
1010 .set_coalesce = efx_ethtool_set_coalesce,
4642610c
BH		 1011 .get_ringparam = efx_ethtool_get_ringparam,
1012 .set_ringparam = efx_ethtool_set_ringparam,
8ceee660
BH		 1013 .get_pauseparam = efx_ethtool_get_pauseparam,
1014 .set_pauseparam = efx_ethtool_set_pauseparam,
1015 .get_rx_csum = efx_ethtool_get_rx_csum,
1016 .set_rx_csum = efx_ethtool_set_rx_csum,
1017 .get_tx_csum = ethtool_op_get_tx_csum,
c383b537
BH		 1018 /* Need to enable/disable IPv6 too */
1019 .set_tx_csum = efx_ethtool_set_tx_csum,
8ceee660
BH		 1020 .get_sg = ethtool_op_get_sg,
1021 .set_sg = ethtool_op_set_sg,
b9b39b62 1022 .get_tso = ethtool_op_get_tso,
738a8f4b
BH		 1023 /* Need to enable/disable TSO-IPv6 too */
1024 .set_tso = efx_ethtool_set_tso,
8ceee660 1025 .get_flags = ethtool_op_get_flags,
39c9cf07 1026 .set_flags = efx_ethtool_set_flags,
3594e131 1027 .get_sset_count = efx_ethtool_get_sset_count,
3273c2e8 1028 .self_test = efx_ethtool_self_test,
8ceee660
BH		 1029 .get_strings = efx_ethtool_get_strings,
1030 .phys_id = efx_ethtool_phys_id,
8ceee660 1031 .get_ethtool_stats = efx_ethtool_get_stats,
89c758fa
BH		 1032 .get_wol = efx_ethtool_get_wol,
1033 .set_wol = efx_ethtool_set_wol,
eb9f6744 1034 .reset = efx_ethtool_reset,
765c9f46
BH		 1035 .get_rxnfc = efx_ethtool_get_rxnfc,
1036 .get_rxfh_indir = efx_ethtool_get_rxfh_indir,
1037 .set_rxfh_indir = efx_ethtool_set_rxfh_indir,
8ceee660 1038};
Linux kernel - Deliverables
This page took 0.462942 seconds and 5 git commands to generate.