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ipv4: Call fib_select_default() only when actually necessary.
[linux-block.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.
0a6f40c6 4 * Copyright 2006-2010 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>
c39d35eb 14#include <linux/in.h>
8ceee660 15#include "net_driver.h"
04cc8cac 16#include "workarounds.h"
3273c2e8 17#include "selftest.h"
8ceee660 18#include "efx.h"
b4187e42 19#include "filter.h"
744093c9 20#include "nic.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,
119226c5
BH		 31 EFX_ETHTOOL_STAT_SOURCE_channel,
32 EFX_ETHTOOL_STAT_SOURCE_tx_queue
8ceee660
BH		 33 } source;
34 unsigned offset;
35 u64(*get_stat) (void *field); /* Reader function */
36};
37
38/* Initialiser for a struct #efx_ethtool_stat with type-checking */
39#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
40 get_stat_function) { \
41 .name = #stat_name, \
42 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
43 .offset = ((((field_type *) 0) == \
44 &((struct efx_##source_name *)0)->field) ? \
45 offsetof(struct efx_##source_name, field) : \
46 offsetof(struct efx_##source_name, field)), \
47 .get_stat = get_stat_function, \
48}
49
50static u64 efx_get_uint_stat(void *field)
51{
52 return *(unsigned int *)field;
53}
54
55static u64 efx_get_ulong_stat(void *field)
56{
57 return *(unsigned long *)field;
58}
59
60static u64 efx_get_u64_stat(void *field)
61{
62 return *(u64 *) field;
63}
64
65static u64 efx_get_atomic_stat(void *field)
66{
67 return atomic_read((atomic_t *) field);
68}
69
70#define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
71 EFX_ETHTOOL_STAT(field, mac_stats, field, \
72 unsigned long, efx_get_ulong_stat)
73
74#define EFX_ETHTOOL_U64_MAC_STAT(field) \
75 EFX_ETHTOOL_STAT(field, mac_stats, field, \
76 u64, efx_get_u64_stat)
77
78#define EFX_ETHTOOL_UINT_NIC_STAT(name) \
79 EFX_ETHTOOL_STAT(name, nic, n_##name, \
80 unsigned int, efx_get_uint_stat)
81
82#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
83 EFX_ETHTOOL_STAT(field, nic, field, \
84 atomic_t, efx_get_atomic_stat)
85
86#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
87 EFX_ETHTOOL_STAT(field, channel, n_##field, \
88 unsigned int, efx_get_uint_stat)
89
119226c5
BH		 90#define EFX_ETHTOOL_UINT_TXQ_STAT(field) \
91 EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \
92 unsigned int, efx_get_uint_stat)
93
8ceee660
BH		 94static struct efx_ethtool_stat efx_ethtool_stats[] = {
95 EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
96 EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
97 EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
98 EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
99 EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
100 EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
101 EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
102 EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
103 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
104 EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
105 EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
106 EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
107 EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
108 EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
109 EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
110 EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
111 EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
112 EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
113 EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
114 EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
115 EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
116 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
117 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
118 EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
119 EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
120 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
121 EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
122 EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
123 EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
119226c5
BH		 124 EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
125 EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
126 EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
127 EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
8ceee660
BH		 128 EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
129 EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
130 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
131 EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
132 EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
133 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
134 EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
135 EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
136 EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
137 EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
138 EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
139 EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
140 EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
141 EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
142 EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
143 EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
144 EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
145 EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
146 EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
147 EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
148 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
149 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
150 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
151 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
152 EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
153 EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
154 EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
155 EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
156 EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
157 EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
158 EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
159 EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
160 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
161 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
162 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
163 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
c1ac403b 164 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
8ceee660
BH		 165 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
166};
167
168/* Number of ethtool statistics */
169#define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
170
4a5b504d 171#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
4a5b504d 172
8ceee660
BH		 173/**************************************************************************
174 *
175 * Ethtool operations
176 *
177 **************************************************************************
178 */
179
180/* Identify device by flashing LEDs */
c5e129ac
BH		 181static int efx_ethtool_phys_id(struct net_device *net_dev,
182 enum ethtool_phys_id_state state)
8ceee660 183{
767e468c 184 struct efx_nic *efx = netdev_priv(net_dev);
c5e129ac 185 enum efx_led_mode mode;
8ceee660 186
c5e129ac
BH		 187 switch (state) {
188 case ETHTOOL_ID_ON:
189 mode = EFX_LED_ON;
190 break;
191 case ETHTOOL_ID_OFF:
192 mode = EFX_LED_OFF;
193 break;
194 case ETHTOOL_ID_INACTIVE:
195 mode = EFX_LED_DEFAULT;
196 break;
197 default:
198 return -EINVAL;
199 }
398468ed 200
c5e129ac 201 efx->type->set_id_led(efx, mode);
8ceee660
BH		 202 return 0;
203}
204
205/* This must be called with rtnl_lock held. */
d215697f 206static int efx_ethtool_get_settings(struct net_device *net_dev,
207 struct ethtool_cmd *ecmd)
8ceee660 208{
767e468c 209 struct efx_nic *efx = netdev_priv(net_dev);
d3245b28 210 struct efx_link_state *link_state = &efx->link_state;
8ceee660
BH		 211
212 mutex_lock(&efx->mac_lock);
177dfcd8 213 efx->phy_op->get_settings(efx, ecmd);
8ceee660
BH		 214 mutex_unlock(&efx->mac_lock);
215
754c653a 216 /* GMAC does not support 1000Mbps HD */
177dfcd8 217 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
d3245b28
BH		 218 /* Both MACs support pause frames (bidirectional and respond-only) */
219 ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
220
221 if (LOOPBACK_INTERNAL(efx)) {
222 ecmd->speed = link_state->speed;
223 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
224 }
177dfcd8
BH		 225
226 return 0;
8ceee660
BH		 227}
228
229/* This must be called with rtnl_lock held. */
d215697f 230static int efx_ethtool_set_settings(struct net_device *net_dev,
231 struct ethtool_cmd *ecmd)
8ceee660 232{
767e468c 233 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 234 int rc;
235
754c653a 236 /* GMAC does not support 1000Mbps HD */
177dfcd8 237 if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
62776d03
BH		 238 netif_dbg(efx, drv, efx->net_dev,
239 "rejecting unsupported 1000Mbps HD setting\n");
177dfcd8
BH		 240 return -EINVAL;
241 }
242
8ceee660 243 mutex_lock(&efx->mac_lock);
177dfcd8 244 rc = efx->phy_op->set_settings(efx, ecmd);
8ceee660 245 mutex_unlock(&efx->mac_lock);
8ceee660
BH		 246 return rc;
247}
248
249static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
250 struct ethtool_drvinfo *info)
251{
767e468c 252 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 253
c5d5f5fd 254 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
8ceee660 255 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
8880f4ec 256 if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
e5f0fd27
BH		 257 efx_mcdi_print_fwver(efx, info->fw_version,
258 sizeof(info->fw_version));
8ceee660
BH		 259 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
260}
261
5b98c1bf
BH		 262static int efx_ethtool_get_regs_len(struct net_device *net_dev)
263{
264 return efx_nic_get_regs_len(netdev_priv(net_dev));
265}
266
267static void efx_ethtool_get_regs(struct net_device *net_dev,
268 struct ethtool_regs *regs, void *buf)
269{
270 struct efx_nic *efx = netdev_priv(net_dev);
271
272 regs->version = efx->type->revision;
273 efx_nic_get_regs(efx, buf);
274}
275
62776d03
BH		 276static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
277{
278 struct efx_nic *efx = netdev_priv(net_dev);
279 return efx->msg_enable;
280}
281
282static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
283{
284 struct efx_nic *efx = netdev_priv(net_dev);
285 efx->msg_enable = msg_enable;
286}
287
3273c2e8
BH		 288/**
289 * efx_fill_test - fill in an individual self-test entry
290 * @test_index: Index of the test
291 * @strings: Ethtool strings, or %NULL
292 * @data: Ethtool test results, or %NULL
293 * @test: Pointer to test result (used only if data != %NULL)
740ced99
BH		 294 * @unit_format: Unit name format (e.g. "chan\%d")
295 * @unit_id: Unit id (e.g. 0 for "chan0")
3273c2e8 296 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
740ced99 297 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
3273c2e8
BH		 298 *
299 * Fill in an individual self-test entry.
300 */
301static void efx_fill_test(unsigned int test_index,
302 struct ethtool_string *strings, u64 *data,
303 int *test, const char *unit_format, int unit_id,
304 const char *test_format, const char *test_id)
305{
306 struct ethtool_string unit_str, test_str;
307
308 /* Fill data value, if applicable */
309 if (data)
310 data[test_index] = *test;
311
312 /* Fill string, if applicable */
313 if (strings) {
11e66966
BH		 314 if (strchr(unit_format, '%'))
315 snprintf(unit_str.name, sizeof(unit_str.name),
316 unit_format, unit_id);
317 else
318 strcpy(unit_str.name, unit_format);
3273c2e8
BH		 319 snprintf(test_str.name, sizeof(test_str.name),
320 test_format, test_id);
321 snprintf(strings[test_index].name,
322 sizeof(strings[test_index].name),
740ced99 323 "%-6s %-24s", unit_str.name, test_str.name);
3273c2e8
BH		 324 }
325}
326
740ced99 327#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
3273c2e8
BH		 328#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
329#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
330#define EFX_LOOPBACK_NAME(_mode, _counter) \
c459302d 331 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
3273c2e8
BH		 332
333/**
334 * efx_fill_loopback_test - fill in a block of loopback self-test entries
335 * @efx: Efx NIC
336 * @lb_tests: Efx loopback self-test results structure
337 * @mode: Loopback test mode
338 * @test_index: Starting index of the test
339 * @strings: Ethtool strings, or %NULL
340 * @data: Ethtool test results, or %NULL
341 */
342static int efx_fill_loopback_test(struct efx_nic *efx,
343 struct efx_loopback_self_tests *lb_tests,
344 enum efx_loopback_mode mode,
345 unsigned int test_index,
346 struct ethtool_string *strings, u64 *data)
347{
f7d12cdc 348 struct efx_channel *channel = efx_get_channel(efx, 0);
3273c2e8
BH		 349 struct efx_tx_queue *tx_queue;
350
f7d12cdc 351 efx_for_each_channel_tx_queue(tx_queue, channel) {
3273c2e8
BH		 352 efx_fill_test(test_index++, strings, data,
353 &lb_tests->tx_sent[tx_queue->queue],
354 EFX_TX_QUEUE_NAME(tx_queue),
355 EFX_LOOPBACK_NAME(mode, "tx_sent"));
356 efx_fill_test(test_index++, strings, data,
357 &lb_tests->tx_done[tx_queue->queue],
358 EFX_TX_QUEUE_NAME(tx_queue),
359 EFX_LOOPBACK_NAME(mode, "tx_done"));
360 }
361 efx_fill_test(test_index++, strings, data,
362 &lb_tests->rx_good,
11e66966 363 "rx", 0,
3273c2e8
BH		 364 EFX_LOOPBACK_NAME(mode, "rx_good"));
365 efx_fill_test(test_index++, strings, data,
366 &lb_tests->rx_bad,
11e66966 367 "rx", 0,
3273c2e8
BH		 368 EFX_LOOPBACK_NAME(mode, "rx_bad"));
369
370 return test_index;
371}
372
373/**
374 * efx_ethtool_fill_self_tests - get self-test details
375 * @efx: Efx NIC
376 * @tests: Efx self-test results structure, or %NULL
377 * @strings: Ethtool strings, or %NULL
378 * @data: Ethtool test results, or %NULL
379 */
380static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
381 struct efx_self_tests *tests,
382 struct ethtool_string *strings,
383 u64 *data)
384{
385 struct efx_channel *channel;
1796721a 386 unsigned int n = 0, i;
3273c2e8
BH		 387 enum efx_loopback_mode mode;
388
4f16c073
BH		 389 efx_fill_test(n++, strings, data, &tests->phy_alive,
390 "phy", 0, "alive", NULL);
8c8661e4
BH		 391 efx_fill_test(n++, strings, data, &tests->nvram,
392 "core", 0, "nvram", NULL);
3273c2e8
BH		 393 efx_fill_test(n++, strings, data, &tests->interrupt,
394 "core", 0, "interrupt", NULL);
395
396 /* Event queues */
397 efx_for_each_channel(channel, efx) {
398 efx_fill_test(n++, strings, data,
399 &tests->eventq_dma[channel->channel],
400 EFX_CHANNEL_NAME(channel),
401 "eventq.dma", NULL);
402 efx_fill_test(n++, strings, data,
403 &tests->eventq_int[channel->channel],
404 EFX_CHANNEL_NAME(channel),
405 "eventq.int", NULL);
406 efx_fill_test(n++, strings, data,
407 &tests->eventq_poll[channel->channel],
408 EFX_CHANNEL_NAME(channel),
409 "eventq.poll", NULL);
410 }
411
8c8661e4
BH		 412 efx_fill_test(n++, strings, data, &tests->registers,
413 "core", 0, "registers", NULL);
1796721a 414
c1c4f453
BH		 415 if (efx->phy_op->run_tests != NULL) {
416 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
417
418 for (i = 0; true; ++i) {
419 const char *name;
420
421 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
422 name = efx->phy_op->test_name(efx, i);
423 if (name == NULL)
424 break;
425
4f16c073 426 efx_fill_test(n++, strings, data, &tests->phy_ext[i],
c1c4f453
BH		 427 "phy", 0, name, NULL);
428 }
429 }
3273c2e8
BH		 430
431 /* Loopback tests */
8c8661e4 432 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
3273c2e8
BH		 433 if (!(efx->loopback_modes & (1 << mode)))
434 continue;
435 n = efx_fill_loopback_test(efx,
436 &tests->loopback[mode], mode, n,
437 strings, data);
438 }
439
440 return n;
441}
442
3594e131
BH		 443static int efx_ethtool_get_sset_count(struct net_device *net_dev,
444 int string_set)
8ceee660 445{
3594e131
BH		 446 switch (string_set) {
447 case ETH_SS_STATS:
448 return EFX_ETHTOOL_NUM_STATS;
449 case ETH_SS_TEST:
450 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
451 NULL, NULL, NULL);
452 default:
453 return -EINVAL;
454 }
3273c2e8
BH		 455}
456
8ceee660
BH		 457static void efx_ethtool_get_strings(struct net_device *net_dev,
458 u32 string_set, u8 *strings)
459{
767e468c 460 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 461 struct ethtool_string *ethtool_strings =
462 (struct ethtool_string *)strings;
463 int i;
464
3273c2e8
BH		 465 switch (string_set) {
466 case ETH_SS_STATS:
8ceee660
BH		 467 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
468 strncpy(ethtool_strings[i].name,
469 efx_ethtool_stats[i].name,
470 sizeof(ethtool_strings[i].name));
3273c2e8
BH		 471 break;
472 case ETH_SS_TEST:
473 efx_ethtool_fill_self_tests(efx, NULL,
474 ethtool_strings, NULL);
475 break;
476 default:
477 /* No other string sets */
478 break;
479 }
8ceee660
BH		 480}
481
482static void efx_ethtool_get_stats(struct net_device *net_dev,
483 struct ethtool_stats *stats,
484 u64 *data)
485{
767e468c 486 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 487 struct efx_mac_stats *mac_stats = &efx->mac_stats;
488 struct efx_ethtool_stat *stat;
489 struct efx_channel *channel;
119226c5 490 struct efx_tx_queue *tx_queue;
28172739 491 struct rtnl_link_stats64 temp;
8ceee660
BH		 492 int i;
493
494 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
495
496 /* Update MAC and NIC statistics */
28172739 497 dev_get_stats(net_dev, &temp);
8ceee660
BH		 498
499 /* Fill detailed statistics buffer */
500 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
501 stat = &efx_ethtool_stats[i];
502 switch (stat->source) {
503 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
504 data[i] = stat->get_stat((void *)mac_stats +
505 stat->offset);
506 break;
507 case EFX_ETHTOOL_STAT_SOURCE_nic:
508 data[i] = stat->get_stat((void *)efx + stat->offset);
509 break;
510 case EFX_ETHTOOL_STAT_SOURCE_channel:
511 data[i] = 0;
512 efx_for_each_channel(channel, efx)
513 data[i] += stat->get_stat((void *)channel +
514 stat->offset);
515 break;
119226c5
BH		 516 case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
517 data[i] = 0;
518 efx_for_each_channel(channel, efx) {
519 efx_for_each_channel_tx_queue(tx_queue, channel)
520 data[i] +=
521 stat->get_stat((void *)tx_queue
522 + stat->offset);
523 }
524 break;
8ceee660
BH		 525 }
526 }
527}
528
3273c2e8
BH		 529static void efx_ethtool_self_test(struct net_device *net_dev,
530 struct ethtool_test *test, u64 *data)
531{
767e468c 532 struct efx_nic *efx = netdev_priv(net_dev);
28801f35 533 struct efx_self_tests *efx_tests;
2ef3068e 534 int already_up;
28801f35
ED		 535 int rc = -ENOMEM;
536
537 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
538 if (!efx_tests)
539 goto fail;
540
3273c2e8
BH		 541
542 ASSERT_RTNL();
543 if (efx->state != STATE_RUNNING) {
544 rc = -EIO;
545 goto fail1;
546 }
547
ac33ac61
BH		 548 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
549 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
550
3273c2e8
BH		 551 /* We need rx buffers and interrupts. */
552 already_up = (efx->net_dev->flags & IFF_UP);
553 if (!already_up) {
554 rc = dev_open(efx->net_dev);
555 if (rc) {
62776d03
BH		 556 netif_err(efx, drv, efx->net_dev,
557 "failed opening device.\n");
28801f35 558 goto fail1;
3273c2e8
BH		 559 }
560 }
561
28801f35 562 rc = efx_selftest(efx, efx_tests, test->flags);
3273c2e8 563
3273c2e8
BH		 564 if (!already_up)
565 dev_close(efx->net_dev);
566
ac33ac61
BH		 567 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
568 rc == 0 ? "passed" : "failed",
569 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
3273c2e8 570
28801f35 571fail1:
3273c2e8 572 /* Fill ethtool results structures */
28801f35
ED		 573 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
574 kfree(efx_tests);
575fail:
3273c2e8
BH		 576 if (rc)
577 test->flags |= ETH_TEST_FL_FAILED;
578}
579
8ceee660
BH		 580/* Restart autonegotiation */
581static int efx_ethtool_nway_reset(struct net_device *net_dev)
582{
767e468c 583 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 584
68e7f45e 585 return mdio45_nway_restart(&efx->mdio);
8ceee660
BH		 586}
587
8ceee660
BH		 588static int efx_ethtool_get_coalesce(struct net_device *net_dev,
589 struct ethtool_coalesce *coalesce)
590{
767e468c 591 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 592 struct efx_channel *channel;
593
594 memset(coalesce, 0, sizeof(*coalesce));
595
596 /* Find lowest IRQ moderation across all used TX queues */
597 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
f7d12cdc 598 efx_for_each_channel(channel, efx) {
525da907 599 if (!efx_channel_has_tx_queues(channel))
f7d12cdc 600 continue;
8ceee660 601 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
a4900ac9 602 if (channel->channel < efx->n_rx_channels)
8ceee660
BH		 603 coalesce->tx_coalesce_usecs_irq =
604 channel->irq_moderation;
605 else
606 coalesce->tx_coalesce_usecs_irq = 0;
607 }
608 }
609
6fb70fd1
BH		 610 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
611 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
8ceee660 612
152b6a62
BH		 613 coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
614 coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
0d86ebd8 615
8ceee660
BH		 616 return 0;
617}
618
619/* Set coalescing parameters
620 * The difficulties occur for shared channels
621 */
622static int efx_ethtool_set_coalesce(struct net_device *net_dev,
623 struct ethtool_coalesce *coalesce)
624{
767e468c 625 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 626 struct efx_channel *channel;
6fb70fd1 627 unsigned tx_usecs, rx_usecs, adaptive;
8ceee660 628
6fb70fd1 629 if (coalesce->use_adaptive_tx_coalesce)
8ceee660
BH		 630 return -EOPNOTSUPP;
631
632 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
62776d03
BH		 633 netif_err(efx, drv, efx->net_dev, "invalid coalescing setting. "
634 "Only rx/tx_coalesce_usecs_irq are supported\n");
8ceee660
BH		 635 return -EOPNOTSUPP;
636 }
637
638 rx_usecs = coalesce->rx_coalesce_usecs_irq;
639 tx_usecs = coalesce->tx_coalesce_usecs_irq;
6fb70fd1 640 adaptive = coalesce->use_adaptive_rx_coalesce;
8ceee660
BH		 641
642 /* If the channel is shared only allow RX parameters to be set */
f7d12cdc 643 efx_for_each_channel(channel, efx) {
525da907
BH		 644 if (efx_channel_has_rx_queue(channel) &&
645 efx_channel_has_tx_queues(channel) &&
8ceee660 646 tx_usecs) {
62776d03
BH		 647 netif_err(efx, drv, efx->net_dev, "Channel is shared. "
648 "Only RX coalescing may be set\n");
8ceee660
BH		 649 return -EOPNOTSUPP;
650 }
651 }
652
6fb70fd1 653 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
8ceee660 654 efx_for_each_channel(channel, efx)
ef2b90ee 655 efx->type->push_irq_moderation(channel);
8ceee660
BH		 656
657 return 0;
658}
659
4642610c
BH		 660static void efx_ethtool_get_ringparam(struct net_device *net_dev,
661 struct ethtool_ringparam *ring)
662{
663 struct efx_nic *efx = netdev_priv(net_dev);
664
665 ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
666 ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
667 ring->rx_mini_max_pending = 0;
668 ring->rx_jumbo_max_pending = 0;
669 ring->rx_pending = efx->rxq_entries;
670 ring->tx_pending = efx->txq_entries;
671 ring->rx_mini_pending = 0;
672 ring->rx_jumbo_pending = 0;
673}
674
675static int efx_ethtool_set_ringparam(struct net_device *net_dev,
676 struct ethtool_ringparam *ring)
677{
678 struct efx_nic *efx = netdev_priv(net_dev);
679
680 if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
681 ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
682 ring->tx_pending > EFX_MAX_DMAQ_SIZE)
683 return -EINVAL;
684
685 if (ring->rx_pending < EFX_MIN_RING_SIZE ||
686 ring->tx_pending < EFX_MIN_RING_SIZE) {
687 netif_err(efx, drv, efx->net_dev,
688 "TX and RX queues cannot be smaller than %ld\n",
689 EFX_MIN_RING_SIZE);
690 return -EINVAL;
691 }
692
693 return efx_realloc_channels(efx, ring->rx_pending, ring->tx_pending);
694}
695
8ceee660
BH		 696static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
697 struct ethtool_pauseparam *pause)
698{
767e468c 699 struct efx_nic *efx = netdev_priv(net_dev);
d3245b28
BH		 700 enum efx_fc_type wanted_fc, old_fc;
701 u32 old_adv;
04cc8cac 702 bool reset;
d3245b28
BH		 703 int rc = 0;
704
705 mutex_lock(&efx->mac_lock);
8ceee660 706
04cc8cac
BH		 707 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
708 (pause->tx_pause ? EFX_FC_TX : 0) |
709 (pause->autoneg ? EFX_FC_AUTO : 0));
710
711 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
62776d03
BH		 712 netif_dbg(efx, drv, efx->net_dev,
713 "Flow control unsupported: tx ON rx OFF\n");
d3245b28
BH		 714 rc = -EINVAL;
715 goto out;
04cc8cac
BH		 716 }
717
d3245b28 718 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
62776d03
BH		 719 netif_dbg(efx, drv, efx->net_dev,
720 "Autonegotiation is disabled\n");
d3245b28
BH		 721 rc = -EINVAL;
722 goto out;
04cc8cac
BH		 723 }
724
725 /* TX flow control may automatically turn itself off if the
726 * link partner (intermittently) stops responding to pause
727 * frames. There isn't any indication that this has happened,
728 * so the best we do is leave it up to the user to spot this
729 * and fix it be cycling transmit flow control on this end. */
730 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
731 if (EFX_WORKAROUND_11482(efx) && reset) {
daeda630 732 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
04cc8cac 733 /* Recover by resetting the EM block */
d3245b28
BH		 734 falcon_stop_nic_stats(efx);
735 falcon_drain_tx_fifo(efx);
736 efx->mac_op->reconfigure(efx);
737 falcon_start_nic_stats(efx);
04cc8cac
BH		 738 } else {
739 /* Schedule a reset to recover */
740 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
741 }
742 }
743
d3245b28
BH		 744 old_adv = efx->link_advertising;
745 old_fc = efx->wanted_fc;
746 efx_link_set_wanted_fc(efx, wanted_fc);
747 if (efx->link_advertising != old_adv ||
748 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
749 rc = efx->phy_op->reconfigure(efx);
750 if (rc) {
62776d03
BH		 751 netif_err(efx, drv, efx->net_dev,
752 "Unable to advertise requested flow "
753 "control setting\n");
d3245b28
BH		 754 goto out;
755 }
756 }
04cc8cac 757
d3245b28
BH		 758 /* Reconfigure the MAC. The PHY *may* generate a link state change event
759 * if the user just changed the advertised capabilities, but there's no
760 * harm doing this twice */
761 efx->mac_op->reconfigure(efx);
04cc8cac 762
d3245b28 763out:
04cc8cac 764 mutex_unlock(&efx->mac_lock);
8ceee660 765
d3245b28 766 return rc;
8ceee660
BH		 767}
768
769static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
770 struct ethtool_pauseparam *pause)
771{
767e468c 772 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 773
04cc8cac
BH		 774 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
775 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
776 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
8ceee660
BH		 777}
778
779
89c758fa
BH		 780static void efx_ethtool_get_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->get_wol(efx, wol);
785}
786
787
788static int efx_ethtool_set_wol(struct net_device *net_dev,
789 struct ethtool_wolinfo *wol)
790{
791 struct efx_nic *efx = netdev_priv(net_dev);
792 return efx->type->set_wol(efx, wol->wolopts);
793}
794
d215697f 795static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
eb9f6744
BH		 796{
797 struct efx_nic *efx = netdev_priv(net_dev);
798 enum reset_type method;
799 enum {
800 ETH_RESET_EFX_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
801 ETH_RESET_OFFLOAD | ETH_RESET_MAC)
802 };
803
804 /* Check for minimal reset flags */
805 if ((*flags & ETH_RESET_EFX_INVISIBLE) != ETH_RESET_EFX_INVISIBLE)
806 return -EINVAL;
807 *flags ^= ETH_RESET_EFX_INVISIBLE;
808 method = RESET_TYPE_INVISIBLE;
809
810 if (*flags & ETH_RESET_PHY) {
811 *flags ^= ETH_RESET_PHY;
812 method = RESET_TYPE_ALL;
813 }
814
815 if ((*flags & efx->type->reset_world_flags) ==
816 efx->type->reset_world_flags) {
817 *flags ^= efx->type->reset_world_flags;
818 method = RESET_TYPE_WORLD;
819 }
820
821 return efx_reset(efx, method);
822}
823
765c9f46
BH		 824static int
825efx_ethtool_get_rxnfc(struct net_device *net_dev,
826 struct ethtool_rxnfc *info, void *rules __always_unused)
827{
828 struct efx_nic *efx = netdev_priv(net_dev);
829
830 switch (info->cmd) {
831 case ETHTOOL_GRXRINGS:
832 info->data = efx->n_rx_channels;
833 return 0;
834
835 case ETHTOOL_GRXFH: {
836 unsigned min_revision = 0;
837
838 info->data = 0;
839 switch (info->flow_type) {
840 case TCP_V4_FLOW:
841 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
842 /* fall through */
843 case UDP_V4_FLOW:
844 case SCTP_V4_FLOW:
845 case AH_ESP_V4_FLOW:
846 case IPV4_FLOW:
847 info->data |= RXH_IP_SRC | RXH_IP_DST;
848 min_revision = EFX_REV_FALCON_B0;
849 break;
850 case TCP_V6_FLOW:
851 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
852 /* fall through */
853 case UDP_V6_FLOW:
854 case SCTP_V6_FLOW:
855 case AH_ESP_V6_FLOW:
856 case IPV6_FLOW:
857 info->data |= RXH_IP_SRC | RXH_IP_DST;
858 min_revision = EFX_REV_SIENA_A0;
859 break;
860 default:
861 break;
862 }
863 if (efx_nic_rev(efx) < min_revision)
864 info->data = 0;
865 return 0;
866 }
867
868 default:
869 return -EOPNOTSUPP;
870 }
871}
872
b4187e42
BH		 873static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
874 struct ethtool_rx_ntuple *ntuple)
875{
876 struct efx_nic *efx = netdev_priv(net_dev);
877 struct ethtool_tcpip4_spec *ip_entry = &ntuple->fs.h_u.tcp_ip4_spec;
878 struct ethtool_tcpip4_spec *ip_mask = &ntuple->fs.m_u.tcp_ip4_spec;
879 struct ethhdr *mac_entry = &ntuple->fs.h_u.ether_spec;
880 struct ethhdr *mac_mask = &ntuple->fs.m_u.ether_spec;
881 struct efx_filter_spec filter;
c39d35eb 882 int rc;
b4187e42
BH		 883
884 /* Range-check action */
885 if (ntuple->fs.action < ETHTOOL_RXNTUPLE_ACTION_CLEAR ||
886 ntuple->fs.action >= (s32)efx->n_rx_channels)
887 return -EINVAL;
888
889 if (~ntuple->fs.data_mask)
890 return -EINVAL;
891
c39d35eb
BH		 892 efx_filter_init_rx(&filter, EFX_FILTER_PRI_MANUAL, 0,
893 (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP) ?
894 0xfff : ntuple->fs.action);
895
b4187e42
BH		 896 switch (ntuple->fs.flow_type) {
897 case TCP_V4_FLOW:
c39d35eb
BH		 898 case UDP_V4_FLOW: {
899 u8 proto = (ntuple->fs.flow_type == TCP_V4_FLOW ?
900 IPPROTO_TCP : IPPROTO_UDP);
901
b4187e42
BH		 902 /* Must match all of destination, */
903 if (ip_mask->ip4dst | ip_mask->pdst)
904 return -EINVAL;
905 /* all or none of source, */
906 if ((ip_mask->ip4src | ip_mask->psrc) &&
907 ((__force u32)~ip_mask->ip4src |
908 (__force u16)~ip_mask->psrc))
909 return -EINVAL;
910 /* and nothing else */
911 if ((u8)~ip_mask->tos | (u16)~ntuple->fs.vlan_tag_mask)
912 return -EINVAL;
c39d35eb
BH		 913
914 if (!ip_mask->ip4src)
915 rc = efx_filter_set_ipv4_full(&filter, proto,
916 ip_entry->ip4dst,
917 ip_entry->pdst,
918 ip_entry->ip4src,
919 ip_entry->psrc);
920 else
921 rc = efx_filter_set_ipv4_local(&filter, proto,
922 ip_entry->ip4dst,
923 ip_entry->pdst);
924 if (rc)
925 return rc;
b4187e42 926 break;
c39d35eb
BH		 927 }
928
b4187e42
BH		 929 case ETHER_FLOW:
930 /* Must match all of destination, */
931 if (!is_zero_ether_addr(mac_mask->h_dest))
932 return -EINVAL;
933 /* all or none of VID, */
934 if (ntuple->fs.vlan_tag_mask != 0xf000 &&
935 ntuple->fs.vlan_tag_mask != 0xffff)
936 return -EINVAL;
937 /* and nothing else */
938 if (!is_broadcast_ether_addr(mac_mask->h_source) ||
939 mac_mask->h_proto != htons(0xffff))
940 return -EINVAL;
c39d35eb
BH		 941
942 rc = efx_filter_set_eth_local(
943 &filter,
944 (ntuple->fs.vlan_tag_mask == 0xf000) ?
945 ntuple->fs.vlan_tag : EFX_FILTER_VID_UNSPEC,
946 mac_entry->h_dest);
947 if (rc)
948 return rc;
b4187e42 949 break;
c39d35eb 950
b4187e42
BH		 951 default:
952 return -EINVAL;
953 }
954
c39d35eb 955 if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_CLEAR)
b4187e42 956 return efx_filter_remove_filter(efx, &filter);
c39d35eb 957 else
b4187e42 958 return efx_filter_insert_filter(efx, &filter, true);
b4187e42
BH		 959}
960
765c9f46
BH		 961static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
962 struct ethtool_rxfh_indir *indir)
963{
964 struct efx_nic *efx = netdev_priv(net_dev);
965 size_t copy_size =
966 min_t(size_t, indir->size, ARRAY_SIZE(efx->rx_indir_table));
967
968 if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
969 return -EOPNOTSUPP;
970
971 indir->size = ARRAY_SIZE(efx->rx_indir_table);
972 memcpy(indir->ring_index, efx->rx_indir_table,
973 copy_size * sizeof(indir->ring_index[0]));
974 return 0;
975}
976
977static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
978 const struct ethtool_rxfh_indir *indir)
979{
980 struct efx_nic *efx = netdev_priv(net_dev);
981 size_t i;
982
983 if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
984 return -EOPNOTSUPP;
985
986 /* Validate size and indices */
987 if (indir->size != ARRAY_SIZE(efx->rx_indir_table))
988 return -EINVAL;
989 for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
990 if (indir->ring_index[i] >= efx->n_rx_channels)
991 return -EINVAL;
992
993 memcpy(efx->rx_indir_table, indir->ring_index,
994 sizeof(efx->rx_indir_table));
995 efx_nic_push_rx_indir_table(efx);
996 return 0;
997}
998
0fc0b732 999const struct ethtool_ops efx_ethtool_ops = {
8ceee660
BH		 1000 .get_settings = efx_ethtool_get_settings,
1001 .set_settings = efx_ethtool_set_settings,
1002 .get_drvinfo = efx_ethtool_get_drvinfo,
5b98c1bf
BH		 1003 .get_regs_len = efx_ethtool_get_regs_len,
1004 .get_regs = efx_ethtool_get_regs,
62776d03
BH		 1005 .get_msglevel = efx_ethtool_get_msglevel,
1006 .set_msglevel = efx_ethtool_set_msglevel,
8ceee660 1007 .nway_reset = efx_ethtool_nway_reset,
ed4ba4b5 1008 .get_link = ethtool_op_get_link,
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,
3594e131 1015 .get_sset_count = efx_ethtool_get_sset_count,
3273c2e8 1016 .self_test = efx_ethtool_self_test,
8ceee660 1017 .get_strings = efx_ethtool_get_strings,
c5e129ac 1018 .set_phys_id = efx_ethtool_phys_id,
8ceee660 1019 .get_ethtool_stats = efx_ethtool_get_stats,
89c758fa
BH		 1020 .get_wol = efx_ethtool_get_wol,
1021 .set_wol = efx_ethtool_set_wol,
eb9f6744 1022 .reset = efx_ethtool_reset,
765c9f46 1023 .get_rxnfc = efx_ethtool_get_rxnfc,
b4187e42 1024 .set_rx_ntuple = efx_ethtool_set_rx_ntuple,
765c9f46
BH		 1025 .get_rxfh_indir = efx_ethtool_get_rxfh_indir,
1026 .set_rxfh_indir = efx_ethtool_set_rxfh_indir,
8ceee660 1027};
Linux 6.x block layer and io_uring tree(s)