projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
sfc: Reduce the size of struct efx_tx_buffer
[deliverable/linux.git] / drivers / net / sfc / ethtool.c
CommitLineData
8ceee660
BH		 1/****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2008 Solarflare Communications Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation, incorporated herein by reference.
9 */
10
11#include <linux/netdevice.h>
12#include <linux/ethtool.h>
13#include <linux/rtnetlink.h>
14#include "net_driver.h"
3273c2e8 15#include "selftest.h"
8ceee660
BH		 16#include "efx.h"
17#include "ethtool.h"
18#include "falcon.h"
19#include "gmii.h"
20#include "mac.h"
21
3273c2e8
BH		 22const char *efx_loopback_mode_names[] = {
23 [LOOPBACK_NONE] = "NONE",
24 [LOOPBACK_MAC] = "MAC",
25 [LOOPBACK_XGMII] = "XGMII",
26 [LOOPBACK_XGXS] = "XGXS",
27 [LOOPBACK_XAUI] = "XAUI",
28 [LOOPBACK_PHY] = "PHY",
29 [LOOPBACK_PHYXS] = "PHY(XS)",
30 [LOOPBACK_PCS] = "PHY(PCS)",
31 [LOOPBACK_PMAPMD] = "PHY(PMAPMD)",
32 [LOOPBACK_NETWORK] = "NETWORK",
33};
34
8ceee660
BH		 35struct ethtool_string {
36 char name[ETH_GSTRING_LEN];
37};
38
39struct efx_ethtool_stat {
40 const char *name;
41 enum {
42 EFX_ETHTOOL_STAT_SOURCE_mac_stats,
43 EFX_ETHTOOL_STAT_SOURCE_nic,
44 EFX_ETHTOOL_STAT_SOURCE_channel
45 } source;
46 unsigned offset;
47 u64(*get_stat) (void *field); /* Reader function */
48};
49
50/* Initialiser for a struct #efx_ethtool_stat with type-checking */
51#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
52 get_stat_function) { \
53 .name = #stat_name, \
54 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
55 .offset = ((((field_type *) 0) == \
56 &((struct efx_##source_name *)0)->field) ? \
57 offsetof(struct efx_##source_name, field) : \
58 offsetof(struct efx_##source_name, field)), \
59 .get_stat = get_stat_function, \
60}
61
62static u64 efx_get_uint_stat(void *field)
63{
64 return *(unsigned int *)field;
65}
66
67static u64 efx_get_ulong_stat(void *field)
68{
69 return *(unsigned long *)field;
70}
71
72static u64 efx_get_u64_stat(void *field)
73{
74 return *(u64 *) field;
75}
76
77static u64 efx_get_atomic_stat(void *field)
78{
79 return atomic_read((atomic_t *) field);
80}
81
82#define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
83 EFX_ETHTOOL_STAT(field, mac_stats, field, \
84 unsigned long, efx_get_ulong_stat)
85
86#define EFX_ETHTOOL_U64_MAC_STAT(field) \
87 EFX_ETHTOOL_STAT(field, mac_stats, field, \
88 u64, efx_get_u64_stat)
89
90#define EFX_ETHTOOL_UINT_NIC_STAT(name) \
91 EFX_ETHTOOL_STAT(name, nic, n_##name, \
92 unsigned int, efx_get_uint_stat)
93
94#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
95 EFX_ETHTOOL_STAT(field, nic, field, \
96 atomic_t, efx_get_atomic_stat)
97
98#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
99 EFX_ETHTOOL_STAT(field, channel, n_##field, \
100 unsigned int, efx_get_uint_stat)
101
102static struct efx_ethtool_stat efx_ethtool_stats[] = {
103 EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
104 EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
105 EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
106 EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
107 EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
108 EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
109 EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
110 EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
111 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
112 EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
113 EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
114 EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
115 EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
116 EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
117 EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
118 EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
119 EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
120 EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
121 EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
122 EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
123 EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
124 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
125 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
126 EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
127 EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
128 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
129 EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
130 EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
131 EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
132 EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
133 EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
134 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
135 EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
136 EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
137 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
138 EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
139 EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
140 EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
141 EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
142 EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
143 EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
144 EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
145 EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
146 EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
147 EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
148 EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
149 EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
150 EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
151 EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
152 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
153 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
154 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
155 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
156 EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
157 EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
158 EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
159 EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
160 EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
161 EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
162 EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
163 EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
164 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
165 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
166 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
167 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
168 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
169};
170
171/* Number of ethtool statistics */
172#define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
173
174/**************************************************************************
175 *
176 * Ethtool operations
177 *
178 **************************************************************************
179 */
180
181/* Identify device by flashing LEDs */
182static int efx_ethtool_phys_id(struct net_device *net_dev, u32 seconds)
183{
767e468c 184 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 185
186 efx->board_info.blink(efx, 1);
187 schedule_timeout_interruptible(seconds * HZ);
188 efx->board_info.blink(efx, 0);
189 return 0;
190}
191
192/* This must be called with rtnl_lock held. */
193int efx_ethtool_get_settings(struct net_device *net_dev,
194 struct ethtool_cmd *ecmd)
195{
767e468c 196 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 197 int rc;
198
199 mutex_lock(&efx->mac_lock);
200 rc = falcon_xmac_get_settings(efx, ecmd);
201 mutex_unlock(&efx->mac_lock);
202
203 return rc;
204}
205
206/* This must be called with rtnl_lock held. */
207int efx_ethtool_set_settings(struct net_device *net_dev,
208 struct ethtool_cmd *ecmd)
209{
767e468c 210 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 211 int rc;
212
213 mutex_lock(&efx->mac_lock);
214 rc = falcon_xmac_set_settings(efx, ecmd);
215 mutex_unlock(&efx->mac_lock);
216 if (!rc)
217 efx_reconfigure_port(efx);
218
219 return rc;
220}
221
222static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
223 struct ethtool_drvinfo *info)
224{
767e468c 225 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 226
227 strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
228 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
229 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
230}
231
3273c2e8
BH		 232/**
233 * efx_fill_test - fill in an individual self-test entry
234 * @test_index: Index of the test
235 * @strings: Ethtool strings, or %NULL
236 * @data: Ethtool test results, or %NULL
237 * @test: Pointer to test result (used only if data != %NULL)
238 * @unit_format: Unit name format (e.g. "channel\%d")
239 * @unit_id: Unit id (e.g. 0 for "channel0")
240 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
241 * @test_id: Test id (e.g. "PHY" for "loopback.PHY.tx_sent")
242 *
243 * Fill in an individual self-test entry.
244 */
245static void efx_fill_test(unsigned int test_index,
246 struct ethtool_string *strings, u64 *data,
247 int *test, const char *unit_format, int unit_id,
248 const char *test_format, const char *test_id)
249{
250 struct ethtool_string unit_str, test_str;
251
252 /* Fill data value, if applicable */
253 if (data)
254 data[test_index] = *test;
255
256 /* Fill string, if applicable */
257 if (strings) {
258 snprintf(unit_str.name, sizeof(unit_str.name),
259 unit_format, unit_id);
260 snprintf(test_str.name, sizeof(test_str.name),
261 test_format, test_id);
262 snprintf(strings[test_index].name,
263 sizeof(strings[test_index].name),
264 "%-9s%-17s", unit_str.name, test_str.name);
265 }
266}
267
268#define EFX_PORT_NAME "port%d", 0
269#define EFX_CHANNEL_NAME(_channel) "channel%d", _channel->channel
270#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
271#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
272#define EFX_LOOPBACK_NAME(_mode, _counter) \
273 "loopback.%s." _counter, LOOPBACK_MODE_NAME(mode)
274
275/**
276 * efx_fill_loopback_test - fill in a block of loopback self-test entries
277 * @efx: Efx NIC
278 * @lb_tests: Efx loopback self-test results structure
279 * @mode: Loopback test mode
280 * @test_index: Starting index of the test
281 * @strings: Ethtool strings, or %NULL
282 * @data: Ethtool test results, or %NULL
283 */
284static int efx_fill_loopback_test(struct efx_nic *efx,
285 struct efx_loopback_self_tests *lb_tests,
286 enum efx_loopback_mode mode,
287 unsigned int test_index,
288 struct ethtool_string *strings, u64 *data)
289{
290 struct efx_tx_queue *tx_queue;
291
292 efx_for_each_tx_queue(tx_queue, efx) {
293 efx_fill_test(test_index++, strings, data,
294 &lb_tests->tx_sent[tx_queue->queue],
295 EFX_TX_QUEUE_NAME(tx_queue),
296 EFX_LOOPBACK_NAME(mode, "tx_sent"));
297 efx_fill_test(test_index++, strings, data,
298 &lb_tests->tx_done[tx_queue->queue],
299 EFX_TX_QUEUE_NAME(tx_queue),
300 EFX_LOOPBACK_NAME(mode, "tx_done"));
301 }
302 efx_fill_test(test_index++, strings, data,
303 &lb_tests->rx_good,
304 EFX_PORT_NAME,
305 EFX_LOOPBACK_NAME(mode, "rx_good"));
306 efx_fill_test(test_index++, strings, data,
307 &lb_tests->rx_bad,
308 EFX_PORT_NAME,
309 EFX_LOOPBACK_NAME(mode, "rx_bad"));
310
311 return test_index;
312}
313
314/**
315 * efx_ethtool_fill_self_tests - get self-test details
316 * @efx: Efx NIC
317 * @tests: Efx self-test results structure, or %NULL
318 * @strings: Ethtool strings, or %NULL
319 * @data: Ethtool test results, or %NULL
320 */
321static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
322 struct efx_self_tests *tests,
323 struct ethtool_string *strings,
324 u64 *data)
325{
326 struct efx_channel *channel;
327 unsigned int n = 0;
328 enum efx_loopback_mode mode;
329
330 /* Interrupt */
331 efx_fill_test(n++, strings, data, &tests->interrupt,
332 "core", 0, "interrupt", NULL);
333
334 /* Event queues */
335 efx_for_each_channel(channel, efx) {
336 efx_fill_test(n++, strings, data,
337 &tests->eventq_dma[channel->channel],
338 EFX_CHANNEL_NAME(channel),
339 "eventq.dma", NULL);
340 efx_fill_test(n++, strings, data,
341 &tests->eventq_int[channel->channel],
342 EFX_CHANNEL_NAME(channel),
343 "eventq.int", NULL);
344 efx_fill_test(n++, strings, data,
345 &tests->eventq_poll[channel->channel],
346 EFX_CHANNEL_NAME(channel),
347 "eventq.poll", NULL);
348 }
349
350 /* PHY presence */
351 efx_fill_test(n++, strings, data, &tests->phy_ok,
352 EFX_PORT_NAME, "phy_ok", NULL);
353
354 /* Loopback tests */
355 efx_fill_test(n++, strings, data, &tests->loopback_speed,
356 EFX_PORT_NAME, "loopback.speed", NULL);
357 efx_fill_test(n++, strings, data, &tests->loopback_full_duplex,
358 EFX_PORT_NAME, "loopback.full_duplex", NULL);
359 for (mode = LOOPBACK_NONE; mode < LOOPBACK_TEST_MAX; mode++) {
360 if (!(efx->loopback_modes & (1 << mode)))
361 continue;
362 n = efx_fill_loopback_test(efx,
363 &tests->loopback[mode], mode, n,
364 strings, data);
365 }
366
367 return n;
368}
369
8ceee660
BH		 370static int efx_ethtool_get_stats_count(struct net_device *net_dev)
371{
372 return EFX_ETHTOOL_NUM_STATS;
373}
374
3273c2e8
BH		 375static int efx_ethtool_self_test_count(struct net_device *net_dev)
376{
767e468c 377 struct efx_nic *efx = netdev_priv(net_dev);
3273c2e8
BH		 378
379 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);
380}
381
8ceee660
BH		 382static void efx_ethtool_get_strings(struct net_device *net_dev,
383 u32 string_set, u8 *strings)
384{
767e468c 385 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 386 struct ethtool_string *ethtool_strings =
387 (struct ethtool_string *)strings;
388 int i;
389
3273c2e8
BH		 390 switch (string_set) {
391 case ETH_SS_STATS:
8ceee660
BH		 392 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
393 strncpy(ethtool_strings[i].name,
394 efx_ethtool_stats[i].name,
395 sizeof(ethtool_strings[i].name));
3273c2e8
BH		 396 break;
397 case ETH_SS_TEST:
398 efx_ethtool_fill_self_tests(efx, NULL,
399 ethtool_strings, NULL);
400 break;
401 default:
402 /* No other string sets */
403 break;
404 }
8ceee660
BH		 405}
406
407static void efx_ethtool_get_stats(struct net_device *net_dev,
408 struct ethtool_stats *stats,
409 u64 *data)
410{
767e468c 411 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 412 struct efx_mac_stats *mac_stats = &efx->mac_stats;
413 struct efx_ethtool_stat *stat;
414 struct efx_channel *channel;
415 int i;
416
417 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
418
419 /* Update MAC and NIC statistics */
420 net_dev->get_stats(net_dev);
421
422 /* Fill detailed statistics buffer */
423 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
424 stat = &efx_ethtool_stats[i];
425 switch (stat->source) {
426 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
427 data[i] = stat->get_stat((void *)mac_stats +
428 stat->offset);
429 break;
430 case EFX_ETHTOOL_STAT_SOURCE_nic:
431 data[i] = stat->get_stat((void *)efx + stat->offset);
432 break;
433 case EFX_ETHTOOL_STAT_SOURCE_channel:
434 data[i] = 0;
435 efx_for_each_channel(channel, efx)
436 data[i] += stat->get_stat((void *)channel +
437 stat->offset);
438 break;
439 }
440 }
441}
442
8ceee660
BH		 443static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
444{
767e468c 445 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 446
447 /* No way to stop the hardware doing the checks; we just
448 * ignore the result.
449 */
450 efx->rx_checksum_enabled = (enable ? 1 : 0);
451
452 return 0;
453}
454
455static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
456{
767e468c 457 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 458
459 return efx->rx_checksum_enabled;
460}
461
3273c2e8
BH		 462static void efx_ethtool_self_test(struct net_device *net_dev,
463 struct ethtool_test *test, u64 *data)
464{
767e468c 465 struct efx_nic *efx = netdev_priv(net_dev);
3273c2e8
BH		 466 struct efx_self_tests efx_tests;
467 int offline, already_up;
468 int rc;
469
470 ASSERT_RTNL();
471 if (efx->state != STATE_RUNNING) {
472 rc = -EIO;
473 goto fail1;
474 }
475
476 /* We need rx buffers and interrupts. */
477 already_up = (efx->net_dev->flags & IFF_UP);
478 if (!already_up) {
479 rc = dev_open(efx->net_dev);
480 if (rc) {
481 EFX_ERR(efx, "failed opening device.\n");
482 goto fail2;
483 }
484 }
485
486 memset(&efx_tests, 0, sizeof(efx_tests));
487 offline = (test->flags & ETH_TEST_FL_OFFLINE);
488
489 /* Perform online self tests first */
490 rc = efx_online_test(efx, &efx_tests);
491 if (rc)
492 goto out;
493
494 /* Perform offline tests only if online tests passed */
495 if (offline) {
496 /* Stop the kernel from sending packets during the test. */
497 efx_stop_queue(efx);
498 rc = efx_flush_queues(efx);
499 if (!rc)
500 rc = efx_offline_test(efx, &efx_tests,
501 efx->loopback_modes);
502 efx_wake_queue(efx);
503 }
504
505 out:
506 if (!already_up)
507 dev_close(efx->net_dev);
508
509 EFX_LOG(efx, "%s all %sline self-tests\n",
510 rc == 0 ? "passed" : "failed", offline ? "off" : "on");
511
512 fail2:
513 fail1:
514 /* Fill ethtool results structures */
515 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
516 if (rc)
517 test->flags |= ETH_TEST_FL_FAILED;
518}
519
8ceee660
BH		 520/* Restart autonegotiation */
521static int efx_ethtool_nway_reset(struct net_device *net_dev)
522{
767e468c 523 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 524
525 return mii_nway_restart(&efx->mii);
526}
527
528static u32 efx_ethtool_get_link(struct net_device *net_dev)
529{
767e468c 530 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 531
532 return efx->link_up;
533}
534
535static int efx_ethtool_get_coalesce(struct net_device *net_dev,
536 struct ethtool_coalesce *coalesce)
537{
767e468c 538 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 539 struct efx_tx_queue *tx_queue;
540 struct efx_rx_queue *rx_queue;
541 struct efx_channel *channel;
542
543 memset(coalesce, 0, sizeof(*coalesce));
544
545 /* Find lowest IRQ moderation across all used TX queues */
546 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
547 efx_for_each_tx_queue(tx_queue, efx) {
548 channel = tx_queue->channel;
549 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
550 if (channel->used_flags != EFX_USED_BY_RX_TX)
551 coalesce->tx_coalesce_usecs_irq =
552 channel->irq_moderation;
553 else
554 coalesce->tx_coalesce_usecs_irq = 0;
555 }
556 }
557
558 /* Find lowest IRQ moderation across all used RX queues */
559 coalesce->rx_coalesce_usecs_irq = ~((u32) 0);
560 efx_for_each_rx_queue(rx_queue, efx) {
561 channel = rx_queue->channel;
562 if (channel->irq_moderation < coalesce->rx_coalesce_usecs_irq)
563 coalesce->rx_coalesce_usecs_irq =
564 channel->irq_moderation;
565 }
566
567 return 0;
568}
569
570/* Set coalescing parameters
571 * The difficulties occur for shared channels
572 */
573static int efx_ethtool_set_coalesce(struct net_device *net_dev,
574 struct ethtool_coalesce *coalesce)
575{
767e468c 576 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 577 struct efx_channel *channel;
578 struct efx_tx_queue *tx_queue;
579 unsigned tx_usecs, rx_usecs;
580
581 if (coalesce->use_adaptive_rx_coalesce ||
582 coalesce->use_adaptive_tx_coalesce)
583 return -EOPNOTSUPP;
584
585 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
586 EFX_ERR(efx, "invalid coalescing setting. "
587 "Only rx/tx_coalesce_usecs_irq are supported\n");
588 return -EOPNOTSUPP;
589 }
590
591 rx_usecs = coalesce->rx_coalesce_usecs_irq;
592 tx_usecs = coalesce->tx_coalesce_usecs_irq;
593
594 /* If the channel is shared only allow RX parameters to be set */
595 efx_for_each_tx_queue(tx_queue, efx) {
596 if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
597 tx_usecs) {
598 EFX_ERR(efx, "Channel is shared. "
599 "Only RX coalescing may be set\n");
600 return -EOPNOTSUPP;
601 }
602 }
603
604 efx_init_irq_moderation(efx, tx_usecs, rx_usecs);
605
606 /* Reset channel to pick up new moderation value. Note that
607 * this may change the value of the irq_moderation field
608 * (e.g. to allow for hardware timer granularity).
609 */
610 efx_for_each_channel(channel, efx)
611 falcon_set_int_moderation(channel);
612
613 return 0;
614}
615
616static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
617 struct ethtool_pauseparam *pause)
618{
767e468c 619 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 620 enum efx_fc_type flow_control = efx->flow_control;
621 int rc;
622
623 flow_control &= ~(EFX_FC_RX | EFX_FC_TX | EFX_FC_AUTO);
624 flow_control |= pause->rx_pause ? EFX_FC_RX : 0;
625 flow_control |= pause->tx_pause ? EFX_FC_TX : 0;
626 flow_control |= pause->autoneg ? EFX_FC_AUTO : 0;
627
628 /* Try to push the pause parameters */
629 mutex_lock(&efx->mac_lock);
630 rc = falcon_xmac_set_pause(efx, flow_control);
631 mutex_unlock(&efx->mac_lock);
632
633 if (!rc)
634 efx_reconfigure_port(efx);
635
636 return rc;
637}
638
639static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
640 struct ethtool_pauseparam *pause)
641{
767e468c 642 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 643
644 pause->rx_pause = (efx->flow_control & EFX_FC_RX) ? 1 : 0;
645 pause->tx_pause = (efx->flow_control & EFX_FC_TX) ? 1 : 0;
646 pause->autoneg = (efx->flow_control & EFX_FC_AUTO) ? 1 : 0;
647}
648
649
650struct ethtool_ops efx_ethtool_ops = {
651 .get_settings = efx_ethtool_get_settings,
652 .set_settings = efx_ethtool_set_settings,
653 .get_drvinfo = efx_ethtool_get_drvinfo,
654 .nway_reset = efx_ethtool_nway_reset,
655 .get_link = efx_ethtool_get_link,
656 .get_coalesce = efx_ethtool_get_coalesce,
657 .set_coalesce = efx_ethtool_set_coalesce,
658 .get_pauseparam = efx_ethtool_get_pauseparam,
659 .set_pauseparam = efx_ethtool_set_pauseparam,
660 .get_rx_csum = efx_ethtool_get_rx_csum,
661 .set_rx_csum = efx_ethtool_set_rx_csum,
662 .get_tx_csum = ethtool_op_get_tx_csum,
60ac1065 663 .set_tx_csum = ethtool_op_set_tx_csum,
8ceee660
BH		 664 .get_sg = ethtool_op_get_sg,
665 .set_sg = ethtool_op_set_sg,
b9b39b62 666 .get_tso = ethtool_op_get_tso,
60ac1065 667 .set_tso = ethtool_op_set_tso,
8ceee660
BH		 668 .get_flags = ethtool_op_get_flags,
669 .set_flags = ethtool_op_set_flags,
3273c2e8
BH		 670 .self_test_count = efx_ethtool_self_test_count,
671 .self_test = efx_ethtool_self_test,
8ceee660
BH		 672 .get_strings = efx_ethtool_get_strings,
673 .phys_id = efx_ethtool_phys_id,
674 .get_stats_count = efx_ethtool_get_stats_count,
675 .get_ethtool_stats = efx_ethtool_get_stats,
676};
Linux kernel - Deliverables
This page took 0.091009 seconds and 5 git commands to generate.