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Merge remote-tracking branch 'cleancache/linux-next'
[linux-2.6/next.git] / drivers / net / sfc / ethtool.c
blob8c5e0052c44aef836391aada06b4bc22829365d9
1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2010 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 <linux/in.h>
15 #include "net_driver.h"
16 #include "workarounds.h"
17 #include "selftest.h"
18 #include "efx.h"
19 #include "filter.h"
20 #include "nic.h"
21
22 struct ethtool_string {
23 char name[ETH_GSTRING_LEN];
24 };
25
26 struct 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 EFX_ETHTOOL_STAT_SOURCE_tx_queue
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
50 static u64 efx_get_uint_stat(void *field)
51 {
52 return *(unsigned int *)field;
53 }
54
55 static u64 efx_get_ulong_stat(void *field)
56 {
57 return *(unsigned long *)field;
58 }
59
60 static u64 efx_get_u64_stat(void *field)
61 {
62 return *(u64 *) field;
63 }
64
65 static 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
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
94 static 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),
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),
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),
164 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
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
171 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
172
173 /**************************************************************************
174 *
175 * Ethtool operations
176 *
177 **************************************************************************
178 */
179
180 /* Identify device by flashing LEDs */
181 static int efx_ethtool_phys_id(struct net_device *net_dev,
182 enum ethtool_phys_id_state state)
183 {
184 struct efx_nic *efx = netdev_priv(net_dev);
185 enum efx_led_mode mode = EFX_LED_DEFAULT;
186
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 case ETHTOOL_ID_ACTIVE:
198 return 1; /* cycle on/off once per second */
199 }
200
201 efx->type->set_id_led(efx, mode);
202 return 0;
203 }
204
205 /* This must be called with rtnl_lock held. */
206 static int efx_ethtool_get_settings(struct net_device *net_dev,
207 struct ethtool_cmd *ecmd)
208 {
209 struct efx_nic *efx = netdev_priv(net_dev);
210 struct efx_link_state *link_state = &efx->link_state;
211
212 mutex_lock(&efx->mac_lock);
213 efx->phy_op->get_settings(efx, ecmd);
214 mutex_unlock(&efx->mac_lock);
215
216 /* GMAC does not support 1000Mbps HD */
217 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
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 ethtool_cmd_speed_set(ecmd, link_state->speed);
223 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
224 }
225
226 return 0;
227 }
228
229 /* This must be called with rtnl_lock held. */
230 static int efx_ethtool_set_settings(struct net_device *net_dev,
231 struct ethtool_cmd *ecmd)
232 {
233 struct efx_nic *efx = netdev_priv(net_dev);
234 int rc;
235
236 /* GMAC does not support 1000Mbps HD */
237 if ((ethtool_cmd_speed(ecmd) == SPEED_1000) &&
238 (ecmd->duplex != DUPLEX_FULL)) {
239 netif_dbg(efx, drv, efx->net_dev,
240 "rejecting unsupported 1000Mbps HD setting\n");
241 return -EINVAL;
242 }
243
244 mutex_lock(&efx->mac_lock);
245 rc = efx->phy_op->set_settings(efx, ecmd);
246 mutex_unlock(&efx->mac_lock);
247 return rc;
248 }
249
250 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
251 struct ethtool_drvinfo *info)
252 {
253 struct efx_nic *efx = netdev_priv(net_dev);
254
255 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
256 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
257 if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
258 efx_mcdi_print_fwver(efx, info->fw_version,
259 sizeof(info->fw_version));
260 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
261 }
262
263 static int efx_ethtool_get_regs_len(struct net_device *net_dev)
264 {
265 return efx_nic_get_regs_len(netdev_priv(net_dev));
266 }
267
268 static void efx_ethtool_get_regs(struct net_device *net_dev,
269 struct ethtool_regs *regs, void *buf)
270 {
271 struct efx_nic *efx = netdev_priv(net_dev);
272
273 regs->version = efx->type->revision;
274 efx_nic_get_regs(efx, buf);
275 }
276
277 static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
278 {
279 struct efx_nic *efx = netdev_priv(net_dev);
280 return efx->msg_enable;
281 }
282
283 static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
284 {
285 struct efx_nic *efx = netdev_priv(net_dev);
286 efx->msg_enable = msg_enable;
287 }
288
289 /**
290 * efx_fill_test - fill in an individual self-test entry
291 * @test_index: Index of the test
292 * @strings: Ethtool strings, or %NULL
293 * @data: Ethtool test results, or %NULL
294 * @test: Pointer to test result (used only if data != %NULL)
295 * @unit_format: Unit name format (e.g. "chan\%d")
296 * @unit_id: Unit id (e.g. 0 for "chan0")
297 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
298 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
299 *
300 * Fill in an individual self-test entry.
301 */
302 static void efx_fill_test(unsigned int test_index,
303 struct ethtool_string *strings, u64 *data,
304 int *test, const char *unit_format, int unit_id,
305 const char *test_format, const char *test_id)
306 {
307 struct ethtool_string unit_str, test_str;
308
309 /* Fill data value, if applicable */
310 if (data)
311 data[test_index] = *test;
312
313 /* Fill string, if applicable */
314 if (strings) {
315 if (strchr(unit_format, '%'))
316 snprintf(unit_str.name, sizeof(unit_str.name),
317 unit_format, unit_id);
318 else
319 strcpy(unit_str.name, unit_format);
320 snprintf(test_str.name, sizeof(test_str.name),
321 test_format, test_id);
322 snprintf(strings[test_index].name,
323 sizeof(strings[test_index].name),
324 "%-6s %-24s", unit_str.name, test_str.name);
325 }
326 }
327
328 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
329 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
330 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
331 #define EFX_LOOPBACK_NAME(_mode, _counter) \
332 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
333
334 /**
335 * efx_fill_loopback_test - fill in a block of loopback self-test entries
336 * @efx: Efx NIC
337 * @lb_tests: Efx loopback self-test results structure
338 * @mode: Loopback test mode
339 * @test_index: Starting index of the test
340 * @strings: Ethtool strings, or %NULL
341 * @data: Ethtool test results, or %NULL
342 */
343 static int efx_fill_loopback_test(struct efx_nic *efx,
344 struct efx_loopback_self_tests *lb_tests,
345 enum efx_loopback_mode mode,
346 unsigned int test_index,
347 struct ethtool_string *strings, u64 *data)
348 {
349 struct efx_channel *channel = efx_get_channel(efx, 0);
350 struct efx_tx_queue *tx_queue;
351
352 efx_for_each_channel_tx_queue(tx_queue, channel) {
353 efx_fill_test(test_index++, strings, data,
354 &lb_tests->tx_sent[tx_queue->queue],
355 EFX_TX_QUEUE_NAME(tx_queue),
356 EFX_LOOPBACK_NAME(mode, "tx_sent"));
357 efx_fill_test(test_index++, strings, data,
358 &lb_tests->tx_done[tx_queue->queue],
359 EFX_TX_QUEUE_NAME(tx_queue),
360 EFX_LOOPBACK_NAME(mode, "tx_done"));
361 }
362 efx_fill_test(test_index++, strings, data,
363 &lb_tests->rx_good,
364 "rx", 0,
365 EFX_LOOPBACK_NAME(mode, "rx_good"));
366 efx_fill_test(test_index++, strings, data,
367 &lb_tests->rx_bad,
368 "rx", 0,
369 EFX_LOOPBACK_NAME(mode, "rx_bad"));
370
371 return test_index;
372 }
373
374 /**
375 * efx_ethtool_fill_self_tests - get self-test details
376 * @efx: Efx NIC
377 * @tests: Efx self-test results structure, or %NULL
378 * @strings: Ethtool strings, or %NULL
379 * @data: Ethtool test results, or %NULL
380 */
381 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
382 struct efx_self_tests *tests,
383 struct ethtool_string *strings,
384 u64 *data)
385 {
386 struct efx_channel *channel;
387 unsigned int n = 0, i;
388 enum efx_loopback_mode mode;
389
390 efx_fill_test(n++, strings, data, &tests->phy_alive,
391 "phy", 0, "alive", NULL);
392 efx_fill_test(n++, strings, data, &tests->nvram,
393 "core", 0, "nvram", NULL);
394 efx_fill_test(n++, strings, data, &tests->interrupt,
395 "core", 0, "interrupt", NULL);
396
397 /* Event queues */
398 efx_for_each_channel(channel, efx) {
399 efx_fill_test(n++, strings, data,
400 &tests->eventq_dma[channel->channel],
401 EFX_CHANNEL_NAME(channel),
402 "eventq.dma", NULL);
403 efx_fill_test(n++, strings, data,
404 &tests->eventq_int[channel->channel],
405 EFX_CHANNEL_NAME(channel),
406 "eventq.int", NULL);
407 efx_fill_test(n++, strings, data,
408 &tests->eventq_poll[channel->channel],
409 EFX_CHANNEL_NAME(channel),
410 "eventq.poll", NULL);
411 }
412
413 efx_fill_test(n++, strings, data, &tests->registers,
414 "core", 0, "registers", NULL);
415
416 if (efx->phy_op->run_tests != NULL) {
417 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
418
419 for (i = 0; true; ++i) {
420 const char *name;
421
422 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
423 name = efx->phy_op->test_name(efx, i);
424 if (name == NULL)
425 break;
426
427 efx_fill_test(n++, strings, data, &tests->phy_ext[i],
428 "phy", 0, name, NULL);
429 }
430 }
431
432 /* Loopback tests */
433 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
434 if (!(efx->loopback_modes & (1 << mode)))
435 continue;
436 n = efx_fill_loopback_test(efx,
437 &tests->loopback[mode], mode, n,
438 strings, data);
439 }
440
441 return n;
442 }
443
444 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
445 int string_set)
446 {
447 switch (string_set) {
448 case ETH_SS_STATS:
449 return EFX_ETHTOOL_NUM_STATS;
450 case ETH_SS_TEST:
451 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
452 NULL, NULL, NULL);
453 default:
454 return -EINVAL;
455 }
456 }
457
458 static void efx_ethtool_get_strings(struct net_device *net_dev,
459 u32 string_set, u8 *strings)
460 {
461 struct efx_nic *efx = netdev_priv(net_dev);
462 struct ethtool_string *ethtool_strings =
463 (struct ethtool_string *)strings;
464 int i;
465
466 switch (string_set) {
467 case ETH_SS_STATS:
468 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
469 strncpy(ethtool_strings[i].name,
470 efx_ethtool_stats[i].name,
471 sizeof(ethtool_strings[i].name));
472 break;
473 case ETH_SS_TEST:
474 efx_ethtool_fill_self_tests(efx, NULL,
475 ethtool_strings, NULL);
476 break;
477 default:
478 /* No other string sets */
479 break;
480 }
481 }
482
483 static void efx_ethtool_get_stats(struct net_device *net_dev,
484 struct ethtool_stats *stats,
485 u64 *data)
486 {
487 struct efx_nic *efx = netdev_priv(net_dev);
488 struct efx_mac_stats *mac_stats = &efx->mac_stats;
489 struct efx_ethtool_stat *stat;
490 struct efx_channel *channel;
491 struct efx_tx_queue *tx_queue;
492 struct rtnl_link_stats64 temp;
493 int i;
494
495 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
496
497 /* Update MAC and NIC statistics */
498 dev_get_stats(net_dev, &temp);
499
500 /* Fill detailed statistics buffer */
501 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
502 stat = &efx_ethtool_stats[i];
503 switch (stat->source) {
504 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
505 data[i] = stat->get_stat((void *)mac_stats +
506 stat->offset);
507 break;
508 case EFX_ETHTOOL_STAT_SOURCE_nic:
509 data[i] = stat->get_stat((void *)efx + stat->offset);
510 break;
511 case EFX_ETHTOOL_STAT_SOURCE_channel:
512 data[i] = 0;
513 efx_for_each_channel(channel, efx)
514 data[i] += stat->get_stat((void *)channel +
515 stat->offset);
516 break;
517 case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
518 data[i] = 0;
519 efx_for_each_channel(channel, efx) {
520 efx_for_each_channel_tx_queue(tx_queue, channel)
521 data[i] +=
522 stat->get_stat((void *)tx_queue
523 + stat->offset);
524 }
525 break;
526 }
527 }
528 }
529
530 static void efx_ethtool_self_test(struct net_device *net_dev,
531 struct ethtool_test *test, u64 *data)
532 {
533 struct efx_nic *efx = netdev_priv(net_dev);
534 struct efx_self_tests *efx_tests;
535 int already_up;
536 int rc = -ENOMEM;
537
538 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
539 if (!efx_tests)
540 goto fail;
541
542
543 ASSERT_RTNL();
544 if (efx->state != STATE_RUNNING) {
545 rc = -EIO;
546 goto fail1;
547 }
548
549 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
550 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
551
552 /* We need rx buffers and interrupts. */
553 already_up = (efx->net_dev->flags & IFF_UP);
554 if (!already_up) {
555 rc = dev_open(efx->net_dev);
556 if (rc) {
557 netif_err(efx, drv, efx->net_dev,
558 "failed opening device.\n");
559 goto fail1;
560 }
561 }
562
563 rc = efx_selftest(efx, efx_tests, test->flags);
564
565 if (!already_up)
566 dev_close(efx->net_dev);
567
568 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
569 rc == 0 ? "passed" : "failed",
570 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
571
572 fail1:
573 /* Fill ethtool results structures */
574 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
575 kfree(efx_tests);
576 fail:
577 if (rc)
578 test->flags |= ETH_TEST_FL_FAILED;
579 }
580
581 /* Restart autonegotiation */
582 static int efx_ethtool_nway_reset(struct net_device *net_dev)
583 {
584 struct efx_nic *efx = netdev_priv(net_dev);
585
586 return mdio45_nway_restart(&efx->mdio);
587 }
588
589 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
590 struct ethtool_coalesce *coalesce)
591 {
592 struct efx_nic *efx = netdev_priv(net_dev);
593 struct efx_channel *channel;
594
595 memset(coalesce, 0, sizeof(*coalesce));
596
597 /* Find lowest IRQ moderation across all used TX queues */
598 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
599 efx_for_each_channel(channel, efx) {
600 if (!efx_channel_has_tx_queues(channel))
601 continue;
602 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
603 if (channel->channel < efx->n_rx_channels)
604 coalesce->tx_coalesce_usecs_irq =
605 channel->irq_moderation;
606 else
607 coalesce->tx_coalesce_usecs_irq = 0;
608 }
609 }
610
611 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
612 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
613
614 coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
615 coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
616
617 return 0;
618 }
619
620 /* Set coalescing parameters
621 * The difficulties occur for shared channels
622 */
623 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
624 struct ethtool_coalesce *coalesce)
625 {
626 struct efx_nic *efx = netdev_priv(net_dev);
627 struct efx_channel *channel;
628 unsigned tx_usecs, rx_usecs, adaptive;
629
630 if (coalesce->use_adaptive_tx_coalesce)
631 return -EOPNOTSUPP;
632
633 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
634 netif_err(efx, drv, efx->net_dev, "invalid coalescing setting. "
635 "Only rx/tx_coalesce_usecs_irq are supported\n");
636 return -EOPNOTSUPP;
637 }
638
639 rx_usecs = coalesce->rx_coalesce_usecs_irq;
640 tx_usecs = coalesce->tx_coalesce_usecs_irq;
641 adaptive = coalesce->use_adaptive_rx_coalesce;
642
643 /* If the channel is shared only allow RX parameters to be set */
644 efx_for_each_channel(channel, efx) {
645 if (efx_channel_has_rx_queue(channel) &&
646 efx_channel_has_tx_queues(channel) &&
647 tx_usecs) {
648 netif_err(efx, drv, efx->net_dev, "Channel is shared. "
649 "Only RX coalescing may be set\n");
650 return -EOPNOTSUPP;
651 }
652 }
653
654 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
655 efx_for_each_channel(channel, efx)
656 efx->type->push_irq_moderation(channel);
657
658 return 0;
659 }
660
661 static void efx_ethtool_get_ringparam(struct net_device *net_dev,
662 struct ethtool_ringparam *ring)
663 {
664 struct efx_nic *efx = netdev_priv(net_dev);
665
666 ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
667 ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
668 ring->rx_mini_max_pending = 0;
669 ring->rx_jumbo_max_pending = 0;
670 ring->rx_pending = efx->rxq_entries;
671 ring->tx_pending = efx->txq_entries;
672 ring->rx_mini_pending = 0;
673 ring->rx_jumbo_pending = 0;
674 }
675
676 static int efx_ethtool_set_ringparam(struct net_device *net_dev,
677 struct ethtool_ringparam *ring)
678 {
679 struct efx_nic *efx = netdev_priv(net_dev);
680
681 if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
682 ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
683 ring->tx_pending > EFX_MAX_DMAQ_SIZE)
684 return -EINVAL;
685
686 if (ring->rx_pending < EFX_MIN_RING_SIZE ||
687 ring->tx_pending < EFX_MIN_RING_SIZE) {
688 netif_err(efx, drv, efx->net_dev,
689 "TX and RX queues cannot be smaller than %ld\n",
690 EFX_MIN_RING_SIZE);
691 return -EINVAL;
692 }
693
694 return efx_realloc_channels(efx, ring->rx_pending, ring->tx_pending);
695 }
696
697 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
698 struct ethtool_pauseparam *pause)
699 {
700 struct efx_nic *efx = netdev_priv(net_dev);
701 enum efx_fc_type wanted_fc, old_fc;
702 u32 old_adv;
703 bool reset;
704 int rc = 0;
705
706 mutex_lock(&efx->mac_lock);
707
708 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
709 (pause->tx_pause ? EFX_FC_TX : 0) |
710 (pause->autoneg ? EFX_FC_AUTO : 0));
711
712 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
713 netif_dbg(efx, drv, efx->net_dev,
714 "Flow control unsupported: tx ON rx OFF\n");
715 rc = -EINVAL;
716 goto out;
717 }
718
719 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
720 netif_dbg(efx, drv, efx->net_dev,
721 "Autonegotiation is disabled\n");
722 rc = -EINVAL;
723 goto out;
724 }
725
726 /* TX flow control may automatically turn itself off if the
727 * link partner (intermittently) stops responding to pause
728 * frames. There isn't any indication that this has happened,
729 * so the best we do is leave it up to the user to spot this
730 * and fix it be cycling transmit flow control on this end. */
731 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
732 if (EFX_WORKAROUND_11482(efx) && reset) {
733 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
734 /* Recover by resetting the EM block */
735 falcon_stop_nic_stats(efx);
736 falcon_drain_tx_fifo(efx);
737 efx->mac_op->reconfigure(efx);
738 falcon_start_nic_stats(efx);
739 } else {
740 /* Schedule a reset to recover */
741 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
742 }
743 }
744
745 old_adv = efx->link_advertising;
746 old_fc = efx->wanted_fc;
747 efx_link_set_wanted_fc(efx, wanted_fc);
748 if (efx->link_advertising != old_adv ||
749 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
750 rc = efx->phy_op->reconfigure(efx);
751 if (rc) {
752 netif_err(efx, drv, efx->net_dev,
753 "Unable to advertise requested flow "
754 "control setting\n");
755 goto out;
756 }
757 }
758
759 /* Reconfigure the MAC. The PHY *may* generate a link state change event
760 * if the user just changed the advertised capabilities, but there's no
761 * harm doing this twice */
762 efx->mac_op->reconfigure(efx);
763
764 out:
765 mutex_unlock(&efx->mac_lock);
766
767 return rc;
768 }
769
770 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
771 struct ethtool_pauseparam *pause)
772 {
773 struct efx_nic *efx = netdev_priv(net_dev);
774
775 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
776 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
777 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
778 }
779
780
781 static void efx_ethtool_get_wol(struct net_device *net_dev,
782 struct ethtool_wolinfo *wol)
783 {
784 struct efx_nic *efx = netdev_priv(net_dev);
785 return efx->type->get_wol(efx, wol);
786 }
787
788
789 static int efx_ethtool_set_wol(struct net_device *net_dev,
790 struct ethtool_wolinfo *wol)
791 {
792 struct efx_nic *efx = netdev_priv(net_dev);
793 return efx->type->set_wol(efx, wol->wolopts);
794 }
795
796 static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
797 {
798 struct efx_nic *efx = netdev_priv(net_dev);
799 enum reset_type method;
800 enum {
801 ETH_RESET_EFX_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
802 ETH_RESET_OFFLOAD | ETH_RESET_MAC)
803 };
804
805 /* Check for minimal reset flags */
806 if ((*flags & ETH_RESET_EFX_INVISIBLE) != ETH_RESET_EFX_INVISIBLE)
807 return -EINVAL;
808 *flags ^= ETH_RESET_EFX_INVISIBLE;
809 method = RESET_TYPE_INVISIBLE;
810
811 if (*flags & ETH_RESET_PHY) {
812 *flags ^= ETH_RESET_PHY;
813 method = RESET_TYPE_ALL;
814 }
815
816 if ((*flags & efx->type->reset_world_flags) ==
817 efx->type->reset_world_flags) {
818 *flags ^= efx->type->reset_world_flags;
819 method = RESET_TYPE_WORLD;
820 }
821
822 return efx_reset(efx, method);
823 }
824
825 static int
826 efx_ethtool_get_rxnfc(struct net_device *net_dev,
827 struct ethtool_rxnfc *info, void *rules __always_unused)
828 {
829 struct efx_nic *efx = netdev_priv(net_dev);
830
831 switch (info->cmd) {
832 case ETHTOOL_GRXRINGS:
833 info->data = efx->n_rx_channels;
834 return 0;
835
836 case ETHTOOL_GRXFH: {
837 unsigned min_revision = 0;
838
839 info->data = 0;
840 switch (info->flow_type) {
841 case TCP_V4_FLOW:
842 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
843 /* fall through */
844 case UDP_V4_FLOW:
845 case SCTP_V4_FLOW:
846 case AH_ESP_V4_FLOW:
847 case IPV4_FLOW:
848 info->data |= RXH_IP_SRC | RXH_IP_DST;
849 min_revision = EFX_REV_FALCON_B0;
850 break;
851 case TCP_V6_FLOW:
852 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
853 /* fall through */
854 case UDP_V6_FLOW:
855 case SCTP_V6_FLOW:
856 case AH_ESP_V6_FLOW:
857 case IPV6_FLOW:
858 info->data |= RXH_IP_SRC | RXH_IP_DST;
859 min_revision = EFX_REV_SIENA_A0;
860 break;
861 default:
862 break;
863 }
864 if (efx_nic_rev(efx) < min_revision)
865 info->data = 0;
866 return 0;
867 }
868
869 default:
870 return -EOPNOTSUPP;
871 }
872 }
873
874 static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
875 struct ethtool_rx_ntuple *ntuple)
876 {
877 struct efx_nic *efx = netdev_priv(net_dev);
878 struct ethtool_tcpip4_spec *ip_entry = &ntuple->fs.h_u.tcp_ip4_spec;
879 struct ethtool_tcpip4_spec *ip_mask = &ntuple->fs.m_u.tcp_ip4_spec;
880 struct ethhdr *mac_entry = &ntuple->fs.h_u.ether_spec;
881 struct ethhdr *mac_mask = &ntuple->fs.m_u.ether_spec;
882 struct efx_filter_spec filter;
883 int rc;
884
885 /* Range-check action */
886 if (ntuple->fs.action < ETHTOOL_RXNTUPLE_ACTION_CLEAR ||
887 ntuple->fs.action >= (s32)efx->n_rx_channels)
888 return -EINVAL;
889
890 if (~ntuple->fs.data_mask)
891 return -EINVAL;
892
893 efx_filter_init_rx(&filter, EFX_FILTER_PRI_MANUAL, 0,
894 (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP) ?
895 0xfff : ntuple->fs.action);
896
897 switch (ntuple->fs.flow_type) {
898 case TCP_V4_FLOW:
899 case UDP_V4_FLOW: {
900 u8 proto = (ntuple->fs.flow_type == TCP_V4_FLOW ?
901 IPPROTO_TCP : IPPROTO_UDP);
902
903 /* Must match all of destination, */
904 if (ip_mask->ip4dst | ip_mask->pdst)
905 return -EINVAL;
906 /* all or none of source, */
907 if ((ip_mask->ip4src | ip_mask->psrc) &&
908 ((__force u32)~ip_mask->ip4src |
909 (__force u16)~ip_mask->psrc))
910 return -EINVAL;
911 /* and nothing else */
912 if ((u8)~ip_mask->tos | (u16)~ntuple->fs.vlan_tag_mask)
913 return -EINVAL;
914
915 if (!ip_mask->ip4src)
916 rc = efx_filter_set_ipv4_full(&filter, proto,
917 ip_entry->ip4dst,
918 ip_entry->pdst,
919 ip_entry->ip4src,
920 ip_entry->psrc);
921 else
922 rc = efx_filter_set_ipv4_local(&filter, proto,
923 ip_entry->ip4dst,
924 ip_entry->pdst);
925 if (rc)
926 return rc;
927 break;
928 }
929
930 case ETHER_FLOW:
931 /* Must match all of destination, */
932 if (!is_zero_ether_addr(mac_mask->h_dest))
933 return -EINVAL;
934 /* all or none of VID, */
935 if (ntuple->fs.vlan_tag_mask != 0xf000 &&
936 ntuple->fs.vlan_tag_mask != 0xffff)
937 return -EINVAL;
938 /* and nothing else */
939 if (!is_broadcast_ether_addr(mac_mask->h_source) ||
940 mac_mask->h_proto != htons(0xffff))
941 return -EINVAL;
942
943 rc = efx_filter_set_eth_local(
944 &filter,
945 (ntuple->fs.vlan_tag_mask == 0xf000) ?
946 ntuple->fs.vlan_tag : EFX_FILTER_VID_UNSPEC,
947 mac_entry->h_dest);
948 if (rc)
949 return rc;
950 break;
951
952 default:
953 return -EINVAL;
954 }
955
956 if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_CLEAR)
957 return efx_filter_remove_filter(efx, &filter);
958 else
959 return efx_filter_insert_filter(efx, &filter, true);
960 }
961
962 static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
963 struct ethtool_rxfh_indir *indir)
964 {
965 struct efx_nic *efx = netdev_priv(net_dev);
966 size_t copy_size =
967 min_t(size_t, indir->size, ARRAY_SIZE(efx->rx_indir_table));
968
969 if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
970 return -EOPNOTSUPP;
971
972 indir->size = ARRAY_SIZE(efx->rx_indir_table);
973 memcpy(indir->ring_index, efx->rx_indir_table,
974 copy_size * sizeof(indir->ring_index[0]));
975 return 0;
976 }
977
978 static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
979 const struct ethtool_rxfh_indir *indir)
980 {
981 struct efx_nic *efx = netdev_priv(net_dev);
982 size_t i;
983
984 if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
985 return -EOPNOTSUPP;
986
987 /* Validate size and indices */
988 if (indir->size != ARRAY_SIZE(efx->rx_indir_table))
989 return -EINVAL;
990 for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
991 if (indir->ring_index[i] >= efx->n_rx_channels)
992 return -EINVAL;
993
994 memcpy(efx->rx_indir_table, indir->ring_index,
995 sizeof(efx->rx_indir_table));
996 efx_nic_push_rx_indir_table(efx);
997 return 0;
998 }
999
1000 const struct ethtool_ops efx_ethtool_ops = {
1001 .get_settings = efx_ethtool_get_settings,
1002 .set_settings = efx_ethtool_set_settings,
1003 .get_drvinfo = efx_ethtool_get_drvinfo,
1004 .get_regs_len = efx_ethtool_get_regs_len,
1005 .get_regs = efx_ethtool_get_regs,
1006 .get_msglevel = efx_ethtool_get_msglevel,
1007 .set_msglevel = efx_ethtool_set_msglevel,
1008 .nway_reset = efx_ethtool_nway_reset,
1009 .get_link = ethtool_op_get_link,
1010 .get_coalesce = efx_ethtool_get_coalesce,
1011 .set_coalesce = efx_ethtool_set_coalesce,
1012 .get_ringparam = efx_ethtool_get_ringparam,
1013 .set_ringparam = efx_ethtool_set_ringparam,
1014 .get_pauseparam = efx_ethtool_get_pauseparam,
1015 .set_pauseparam = efx_ethtool_set_pauseparam,
1016 .get_sset_count = efx_ethtool_get_sset_count,
1017 .self_test = efx_ethtool_self_test,
1018 .get_strings = efx_ethtool_get_strings,
1019 .set_phys_id = efx_ethtool_phys_id,
1020 .get_ethtool_stats = efx_ethtool_get_stats,
1021 .get_wol = efx_ethtool_get_wol,
1022 .set_wol = efx_ethtool_set_wol,
1023 .reset = efx_ethtool_reset,
1024 .get_rxnfc = efx_ethtool_get_rxnfc,
1025 .set_rx_ntuple = efx_ethtool_set_rx_ntuple,
1026 .get_rxfh_indir = efx_ethtool_get_rxfh_indir,
1027 .set_rxfh_indir = efx_ethtool_set_rxfh_indir,
1028 };
linux-next