?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
sfc: Add support for sub-10G speeds
[linux-2.6/verdex.git] / drivers / net / sfc / ethtool.c
blob1b33f89df4d58a9a5a7622530e8ac9790efb1776
1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2008 Solarflare Communications Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation, incorporated herein by reference.
9 */
10
11 #include <linux/netdevice.h>
12 #include <linux/ethtool.h>
13 #include <linux/rtnetlink.h>
14 #include "net_driver.h"
15 #include "selftest.h"
16 #include "efx.h"
17 #include "ethtool.h"
18 #include "falcon.h"
19 #include "spi.h"
20
21 const char *efx_loopback_mode_names[] = {
22 [LOOPBACK_NONE] = "NONE",
23 [LOOPBACK_GMAC] = "GMAC",
24 [LOOPBACK_XGMII] = "XGMII",
25 [LOOPBACK_XGXS] = "XGXS",
26 [LOOPBACK_XAUI] = "XAUI",
27 [LOOPBACK_GPHY] = "GPHY",
28 [LOOPBACK_PHYXS] = "PHYXS",
29 [LOOPBACK_PCS] = "PCS",
30 [LOOPBACK_PMAPMD] = "PMA/PMD",
31 [LOOPBACK_NETWORK] = "NETWORK",
32 };
33
34 struct ethtool_string {
35 char name[ETH_GSTRING_LEN];
36 };
37
38 struct efx_ethtool_stat {
39 const char *name;
40 enum {
41 EFX_ETHTOOL_STAT_SOURCE_mac_stats,
42 EFX_ETHTOOL_STAT_SOURCE_nic,
43 EFX_ETHTOOL_STAT_SOURCE_channel
44 } source;
45 unsigned offset;
46 u64(*get_stat) (void *field); /* Reader function */
47 };
48
49 /* Initialiser for a struct #efx_ethtool_stat with type-checking */
50 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
51 get_stat_function) { \
52 .name = #stat_name, \
53 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
54 .offset = ((((field_type *) 0) == \
55 &((struct efx_##source_name *)0)->field) ? \
56 offsetof(struct efx_##source_name, field) : \
57 offsetof(struct efx_##source_name, field)), \
58 .get_stat = get_stat_function, \
59 }
60
61 static u64 efx_get_uint_stat(void *field)
62 {
63 return *(unsigned int *)field;
64 }
65
66 static u64 efx_get_ulong_stat(void *field)
67 {
68 return *(unsigned long *)field;
69 }
70
71 static u64 efx_get_u64_stat(void *field)
72 {
73 return *(u64 *) field;
74 }
75
76 static u64 efx_get_atomic_stat(void *field)
77 {
78 return atomic_read((atomic_t *) field);
79 }
80
81 #define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
82 EFX_ETHTOOL_STAT(field, mac_stats, field, \
83 unsigned long, efx_get_ulong_stat)
84
85 #define EFX_ETHTOOL_U64_MAC_STAT(field) \
86 EFX_ETHTOOL_STAT(field, mac_stats, field, \
87 u64, efx_get_u64_stat)
88
89 #define EFX_ETHTOOL_UINT_NIC_STAT(name) \
90 EFX_ETHTOOL_STAT(name, nic, n_##name, \
91 unsigned int, efx_get_uint_stat)
92
93 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
94 EFX_ETHTOOL_STAT(field, nic, field, \
95 atomic_t, efx_get_atomic_stat)
96
97 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
98 EFX_ETHTOOL_STAT(field, channel, n_##field, \
99 unsigned int, efx_get_uint_stat)
100
101 static struct efx_ethtool_stat efx_ethtool_stats[] = {
102 EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
103 EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
104 EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
105 EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
106 EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
107 EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
108 EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
109 EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
110 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
111 EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
112 EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
113 EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
114 EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
115 EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
116 EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
117 EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
118 EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
119 EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
120 EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
121 EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
122 EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
123 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
124 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
125 EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
126 EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
127 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
128 EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
129 EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
130 EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
131 EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
132 EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
133 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
134 EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
135 EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
136 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
137 EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
138 EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
139 EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
140 EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
141 EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
142 EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
143 EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
144 EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
145 EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
146 EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
147 EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
148 EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
149 EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
150 EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
151 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
152 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
153 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
154 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
155 EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
156 EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
157 EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
158 EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
159 EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
160 EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
161 EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
162 EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
163 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
164 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
165 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
166 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
167 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
168 };
169
170 /* Number of ethtool statistics */
171 #define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
172
173 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
174
175 /**************************************************************************
176 *
177 * Ethtool operations
178 *
179 **************************************************************************
180 */
181
182 /* Identify device by flashing LEDs */
183 static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
184 {
185 struct efx_nic *efx = netdev_priv(net_dev);
186
187 efx->board_info.blink(efx, 1);
188 set_current_state(TASK_INTERRUPTIBLE);
189 if (count)
190 schedule_timeout(count * HZ);
191 else
192 schedule();
193 efx->board_info.blink(efx, 0);
194 return 0;
195 }
196
197 /* This must be called with rtnl_lock held. */
198 int efx_ethtool_get_settings(struct net_device *net_dev,
199 struct ethtool_cmd *ecmd)
200 {
201 struct efx_nic *efx = netdev_priv(net_dev);
202
203 mutex_lock(&efx->mac_lock);
204 efx->phy_op->get_settings(efx, ecmd);
205 mutex_unlock(&efx->mac_lock);
206
207 /* Falcon GMAC does not support 1000Mbps HD */
208 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
209
210 return 0;
211 }
212
213 /* This must be called with rtnl_lock held. */
214 int efx_ethtool_set_settings(struct net_device *net_dev,
215 struct ethtool_cmd *ecmd)
216 {
217 struct efx_nic *efx = netdev_priv(net_dev);
218 int rc;
219
220 /* Falcon GMAC does not support 1000Mbps HD */
221 if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
222 EFX_LOG(efx, "rejecting unsupported 1000Mbps HD"
223 " setting\n");
224 return -EINVAL;
225 }
226
227 mutex_lock(&efx->mac_lock);
228 rc = efx->phy_op->set_settings(efx, ecmd);
229 mutex_unlock(&efx->mac_lock);
230 if (!rc)
231 efx_reconfigure_port(efx);
232
233 return rc;
234 }
235
236 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
237 struct ethtool_drvinfo *info)
238 {
239 struct efx_nic *efx = netdev_priv(net_dev);
240
241 strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
242 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
243 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
244 }
245
246 /**
247 * efx_fill_test - fill in an individual self-test entry
248 * @test_index: Index of the test
249 * @strings: Ethtool strings, or %NULL
250 * @data: Ethtool test results, or %NULL
251 * @test: Pointer to test result (used only if data != %NULL)
252 * @unit_format: Unit name format (e.g. "chan\%d")
253 * @unit_id: Unit id (e.g. 0 for "chan0")
254 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
255 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
256 *
257 * Fill in an individual self-test entry.
258 */
259 static void efx_fill_test(unsigned int test_index,
260 struct ethtool_string *strings, u64 *data,
261 int *test, const char *unit_format, int unit_id,
262 const char *test_format, const char *test_id)
263 {
264 struct ethtool_string unit_str, test_str;
265
266 /* Fill data value, if applicable */
267 if (data)
268 data[test_index] = *test;
269
270 /* Fill string, if applicable */
271 if (strings) {
272 snprintf(unit_str.name, sizeof(unit_str.name),
273 unit_format, unit_id);
274 snprintf(test_str.name, sizeof(test_str.name),
275 test_format, test_id);
276 snprintf(strings[test_index].name,
277 sizeof(strings[test_index].name),
278 "%-6s %-24s", unit_str.name, test_str.name);
279 }
280 }
281
282 #define EFX_PORT_NAME "port%d", 0
283 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
284 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
285 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
286 #define EFX_LOOPBACK_NAME(_mode, _counter) \
287 "loopback.%s." _counter, LOOPBACK_MODE_NAME(mode)
288
289 /**
290 * efx_fill_loopback_test - fill in a block of loopback self-test entries
291 * @efx: Efx NIC
292 * @lb_tests: Efx loopback self-test results structure
293 * @mode: Loopback test mode
294 * @test_index: Starting index of the test
295 * @strings: Ethtool strings, or %NULL
296 * @data: Ethtool test results, or %NULL
297 */
298 static int efx_fill_loopback_test(struct efx_nic *efx,
299 struct efx_loopback_self_tests *lb_tests,
300 enum efx_loopback_mode mode,
301 unsigned int test_index,
302 struct ethtool_string *strings, u64 *data)
303 {
304 struct efx_tx_queue *tx_queue;
305
306 efx_for_each_tx_queue(tx_queue, efx) {
307 efx_fill_test(test_index++, strings, data,
308 &lb_tests->tx_sent[tx_queue->queue],
309 EFX_TX_QUEUE_NAME(tx_queue),
310 EFX_LOOPBACK_NAME(mode, "tx_sent"));
311 efx_fill_test(test_index++, strings, data,
312 &lb_tests->tx_done[tx_queue->queue],
313 EFX_TX_QUEUE_NAME(tx_queue),
314 EFX_LOOPBACK_NAME(mode, "tx_done"));
315 }
316 efx_fill_test(test_index++, strings, data,
317 &lb_tests->rx_good,
318 EFX_PORT_NAME,
319 EFX_LOOPBACK_NAME(mode, "rx_good"));
320 efx_fill_test(test_index++, strings, data,
321 &lb_tests->rx_bad,
322 EFX_PORT_NAME,
323 EFX_LOOPBACK_NAME(mode, "rx_bad"));
324
325 return test_index;
326 }
327
328 /**
329 * efx_ethtool_fill_self_tests - get self-test details
330 * @efx: Efx NIC
331 * @tests: Efx self-test results structure, or %NULL
332 * @strings: Ethtool strings, or %NULL
333 * @data: Ethtool test results, or %NULL
334 */
335 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
336 struct efx_self_tests *tests,
337 struct ethtool_string *strings,
338 u64 *data)
339 {
340 struct efx_channel *channel;
341 unsigned int n = 0;
342 enum efx_loopback_mode mode;
343
344 efx_fill_test(n++, strings, data, &tests->mii,
345 "core", 0, "mii", NULL);
346 efx_fill_test(n++, strings, data, &tests->nvram,
347 "core", 0, "nvram", NULL);
348 efx_fill_test(n++, strings, data, &tests->interrupt,
349 "core", 0, "interrupt", NULL);
350
351 /* Event queues */
352 efx_for_each_channel(channel, efx) {
353 efx_fill_test(n++, strings, data,
354 &tests->eventq_dma[channel->channel],
355 EFX_CHANNEL_NAME(channel),
356 "eventq.dma", NULL);
357 efx_fill_test(n++, strings, data,
358 &tests->eventq_int[channel->channel],
359 EFX_CHANNEL_NAME(channel),
360 "eventq.int", NULL);
361 efx_fill_test(n++, strings, data,
362 &tests->eventq_poll[channel->channel],
363 EFX_CHANNEL_NAME(channel),
364 "eventq.poll", NULL);
365 }
366
367 efx_fill_test(n++, strings, data, &tests->registers,
368 "core", 0, "registers", NULL);
369 efx_fill_test(n++, strings, data, &tests->phy,
370 EFX_PORT_NAME, "phy", NULL);
371
372 /* Loopback tests */
373 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
374 if (!(efx->loopback_modes & (1 << mode)))
375 continue;
376 n = efx_fill_loopback_test(efx,
377 &tests->loopback[mode], mode, n,
378 strings, data);
379 }
380
381 return n;
382 }
383
384 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
385 int string_set)
386 {
387 switch (string_set) {
388 case ETH_SS_STATS:
389 return EFX_ETHTOOL_NUM_STATS;
390 case ETH_SS_TEST:
391 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
392 NULL, NULL, NULL);
393 default:
394 return -EINVAL;
395 }
396 }
397
398 static void efx_ethtool_get_strings(struct net_device *net_dev,
399 u32 string_set, u8 *strings)
400 {
401 struct efx_nic *efx = netdev_priv(net_dev);
402 struct ethtool_string *ethtool_strings =
403 (struct ethtool_string *)strings;
404 int i;
405
406 switch (string_set) {
407 case ETH_SS_STATS:
408 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
409 strncpy(ethtool_strings[i].name,
410 efx_ethtool_stats[i].name,
411 sizeof(ethtool_strings[i].name));
412 break;
413 case ETH_SS_TEST:
414 efx_ethtool_fill_self_tests(efx, NULL,
415 ethtool_strings, NULL);
416 break;
417 default:
418 /* No other string sets */
419 break;
420 }
421 }
422
423 static void efx_ethtool_get_stats(struct net_device *net_dev,
424 struct ethtool_stats *stats,
425 u64 *data)
426 {
427 struct efx_nic *efx = netdev_priv(net_dev);
428 struct efx_mac_stats *mac_stats = &efx->mac_stats;
429 struct efx_ethtool_stat *stat;
430 struct efx_channel *channel;
431 int i;
432
433 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
434
435 /* Update MAC and NIC statistics */
436 dev_get_stats(net_dev);
437
438 /* Fill detailed statistics buffer */
439 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
440 stat = &efx_ethtool_stats[i];
441 switch (stat->source) {
442 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
443 data[i] = stat->get_stat((void *)mac_stats +
444 stat->offset);
445 break;
446 case EFX_ETHTOOL_STAT_SOURCE_nic:
447 data[i] = stat->get_stat((void *)efx + stat->offset);
448 break;
449 case EFX_ETHTOOL_STAT_SOURCE_channel:
450 data[i] = 0;
451 efx_for_each_channel(channel, efx)
452 data[i] += stat->get_stat((void *)channel +
453 stat->offset);
454 break;
455 }
456 }
457 }
458
459 static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
460 {
461 struct efx_nic *efx = netdev_priv(net_dev);
462
463 /* No way to stop the hardware doing the checks; we just
464 * ignore the result.
465 */
466 efx->rx_checksum_enabled = !!enable;
467
468 return 0;
469 }
470
471 static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
472 {
473 struct efx_nic *efx = netdev_priv(net_dev);
474
475 return efx->rx_checksum_enabled;
476 }
477
478 static void efx_ethtool_self_test(struct net_device *net_dev,
479 struct ethtool_test *test, u64 *data)
480 {
481 struct efx_nic *efx = netdev_priv(net_dev);
482 struct efx_self_tests efx_tests;
483 int offline, already_up;
484 int rc;
485
486 ASSERT_RTNL();
487 if (efx->state != STATE_RUNNING) {
488 rc = -EIO;
489 goto fail1;
490 }
491
492 /* We need rx buffers and interrupts. */
493 already_up = (efx->net_dev->flags & IFF_UP);
494 if (!already_up) {
495 rc = dev_open(efx->net_dev);
496 if (rc) {
497 EFX_ERR(efx, "failed opening device.\n");
498 goto fail2;
499 }
500 }
501
502 memset(&efx_tests, 0, sizeof(efx_tests));
503 offline = (test->flags & ETH_TEST_FL_OFFLINE);
504
505 /* Perform online self tests first */
506 rc = efx_online_test(efx, &efx_tests);
507 if (rc)
508 goto out;
509
510 /* Perform offline tests only if online tests passed */
511 if (offline)
512 rc = efx_offline_test(efx, &efx_tests,
513 efx->loopback_modes);
514
515 out:
516 if (!already_up)
517 dev_close(efx->net_dev);
518
519 EFX_LOG(efx, "%s all %sline self-tests\n",
520 rc == 0 ? "passed" : "failed", offline ? "off" : "on");
521
522 fail2:
523 fail1:
524 /* Fill ethtool results structures */
525 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
526 if (rc)
527 test->flags |= ETH_TEST_FL_FAILED;
528 }
529
530 /* Restart autonegotiation */
531 static int efx_ethtool_nway_reset(struct net_device *net_dev)
532 {
533 struct efx_nic *efx = netdev_priv(net_dev);
534
535 return mii_nway_restart(&efx->mii);
536 }
537
538 static u32 efx_ethtool_get_link(struct net_device *net_dev)
539 {
540 struct efx_nic *efx = netdev_priv(net_dev);
541
542 return efx->link_up;
543 }
544
545 static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
546 {
547 struct efx_nic *efx = netdev_priv(net_dev);
548 struct efx_spi_device *spi = efx->spi_eeprom;
549
550 if (!spi)
551 return 0;
552 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
553 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
554 }
555
556 static int efx_ethtool_get_eeprom(struct net_device *net_dev,
557 struct ethtool_eeprom *eeprom, u8 *buf)
558 {
559 struct efx_nic *efx = netdev_priv(net_dev);
560 struct efx_spi_device *spi = efx->spi_eeprom;
561 size_t len;
562 int rc;
563
564 mutex_lock(&efx->spi_lock);
565 rc = falcon_spi_read(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
566 eeprom->len, &len, buf);
567 mutex_unlock(&efx->spi_lock);
568 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
569 eeprom->len = len;
570 return rc;
571 }
572
573 static int efx_ethtool_set_eeprom(struct net_device *net_dev,
574 struct ethtool_eeprom *eeprom, u8 *buf)
575 {
576 struct efx_nic *efx = netdev_priv(net_dev);
577 struct efx_spi_device *spi = efx->spi_eeprom;
578 size_t len;
579 int rc;
580
581 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
582 return -EINVAL;
583
584 mutex_lock(&efx->spi_lock);
585 rc = falcon_spi_write(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
586 eeprom->len, &len, buf);
587 mutex_unlock(&efx->spi_lock);
588 eeprom->len = len;
589 return rc;
590 }
591
592 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
593 struct ethtool_coalesce *coalesce)
594 {
595 struct efx_nic *efx = netdev_priv(net_dev);
596 struct efx_tx_queue *tx_queue;
597 struct efx_rx_queue *rx_queue;
598 struct efx_channel *channel;
599
600 memset(coalesce, 0, sizeof(*coalesce));
601
602 /* Find lowest IRQ moderation across all used TX queues */
603 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
604 efx_for_each_tx_queue(tx_queue, efx) {
605 channel = tx_queue->channel;
606 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
607 if (channel->used_flags != EFX_USED_BY_RX_TX)
608 coalesce->tx_coalesce_usecs_irq =
609 channel->irq_moderation;
610 else
611 coalesce->tx_coalesce_usecs_irq = 0;
612 }
613 }
614
615 /* Find lowest IRQ moderation across all used RX queues */
616 coalesce->rx_coalesce_usecs_irq = ~((u32) 0);
617 efx_for_each_rx_queue(rx_queue, efx) {
618 channel = rx_queue->channel;
619 if (channel->irq_moderation < coalesce->rx_coalesce_usecs_irq)
620 coalesce->rx_coalesce_usecs_irq =
621 channel->irq_moderation;
622 }
623
624 return 0;
625 }
626
627 /* Set coalescing parameters
628 * The difficulties occur for shared channels
629 */
630 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
631 struct ethtool_coalesce *coalesce)
632 {
633 struct efx_nic *efx = netdev_priv(net_dev);
634 struct efx_channel *channel;
635 struct efx_tx_queue *tx_queue;
636 unsigned tx_usecs, rx_usecs;
637
638 if (coalesce->use_adaptive_rx_coalesce ||
639 coalesce->use_adaptive_tx_coalesce)
640 return -EOPNOTSUPP;
641
642 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
643 EFX_ERR(efx, "invalid coalescing setting. "
644 "Only rx/tx_coalesce_usecs_irq are supported\n");
645 return -EOPNOTSUPP;
646 }
647
648 rx_usecs = coalesce->rx_coalesce_usecs_irq;
649 tx_usecs = coalesce->tx_coalesce_usecs_irq;
650
651 /* If the channel is shared only allow RX parameters to be set */
652 efx_for_each_tx_queue(tx_queue, efx) {
653 if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
654 tx_usecs) {
655 EFX_ERR(efx, "Channel is shared. "
656 "Only RX coalescing may be set\n");
657 return -EOPNOTSUPP;
658 }
659 }
660
661 efx_init_irq_moderation(efx, tx_usecs, rx_usecs);
662
663 /* Reset channel to pick up new moderation value. Note that
664 * this may change the value of the irq_moderation field
665 * (e.g. to allow for hardware timer granularity).
666 */
667 efx_for_each_channel(channel, efx)
668 falcon_set_int_moderation(channel);
669
670 return 0;
671 }
672
673 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
674 struct ethtool_pauseparam *pause)
675 {
676 struct efx_nic *efx = netdev_priv(net_dev);
677 enum efx_fc_type flow_control = efx->flow_control;
678
679 flow_control &= ~(EFX_FC_RX | EFX_FC_TX | EFX_FC_AUTO);
680 flow_control |= pause->rx_pause ? EFX_FC_RX : 0;
681 flow_control |= pause->tx_pause ? EFX_FC_TX : 0;
682 flow_control |= pause->autoneg ? EFX_FC_AUTO : 0;
683
684 efx_reconfigure_port(efx);
685 return 0;
686 }
687
688 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
689 struct ethtool_pauseparam *pause)
690 {
691 struct efx_nic *efx = netdev_priv(net_dev);
692
693 pause->rx_pause = !!(efx->flow_control & EFX_FC_RX);
694 pause->tx_pause = !!(efx->flow_control & EFX_FC_TX);
695 pause->autoneg = !!(efx->flow_control & EFX_FC_AUTO);
696 }
697
698
699 struct ethtool_ops efx_ethtool_ops = {
700 .get_settings = efx_ethtool_get_settings,
701 .set_settings = efx_ethtool_set_settings,
702 .get_drvinfo = efx_ethtool_get_drvinfo,
703 .nway_reset = efx_ethtool_nway_reset,
704 .get_link = efx_ethtool_get_link,
705 .get_eeprom_len = efx_ethtool_get_eeprom_len,
706 .get_eeprom = efx_ethtool_get_eeprom,
707 .set_eeprom = efx_ethtool_set_eeprom,
708 .get_coalesce = efx_ethtool_get_coalesce,
709 .set_coalesce = efx_ethtool_set_coalesce,
710 .get_pauseparam = efx_ethtool_get_pauseparam,
711 .set_pauseparam = efx_ethtool_set_pauseparam,
712 .get_rx_csum = efx_ethtool_get_rx_csum,
713 .set_rx_csum = efx_ethtool_set_rx_csum,
714 .get_tx_csum = ethtool_op_get_tx_csum,
715 .set_tx_csum = ethtool_op_set_tx_csum,
716 .get_sg = ethtool_op_get_sg,
717 .set_sg = ethtool_op_set_sg,
718 .get_tso = ethtool_op_get_tso,
719 .set_tso = ethtool_op_set_tso,
720 .get_flags = ethtool_op_get_flags,
721 .set_flags = ethtool_op_set_flags,
722 .get_sset_count = efx_ethtool_get_sset_count,
723 .self_test = efx_ethtool_self_test,
724 .get_strings = efx_ethtool_get_strings,
725 .phys_id = efx_ethtool_phys_id,
726 .get_ethtool_stats = efx_ethtool_get_stats,
727 };
Verdex Pro support