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sfc: Clean up MDIO flag setting
[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"
4a5b504d 19#include "spi.h"
8ceee660
BH		 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",
740ced99
BH		 29 [LOOPBACK_PHYXS] = "PHYXS",
30 [LOOPBACK_PCS] = "PCS",
31 [LOOPBACK_PMAPMD] = "PMA/PMD",
3273c2e8
BH		 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
4a5b504d 174#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
4a5b504d 175
8ceee660
BH		 176/**************************************************************************
177 *
178 * Ethtool operations
179 *
180 **************************************************************************
181 */
182
183/* Identify device by flashing LEDs */
65f667fb 184static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
8ceee660 185{
767e468c 186 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 187
188 efx->board_info.blink(efx, 1);
65f667fb
BH		 189 set_current_state(TASK_INTERRUPTIBLE);
190 if (count)
191 schedule_timeout(count * HZ);
192 else
193 schedule();
8ceee660
BH		 194 efx->board_info.blink(efx, 0);
195 return 0;
196}
197
198/* This must be called with rtnl_lock held. */
199int efx_ethtool_get_settings(struct net_device *net_dev,
200 struct ethtool_cmd *ecmd)
201{
767e468c 202 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 203 int rc;
204
205 mutex_lock(&efx->mac_lock);
206 rc = falcon_xmac_get_settings(efx, ecmd);
207 mutex_unlock(&efx->mac_lock);
208
209 return rc;
210}
211
212/* This must be called with rtnl_lock held. */
213int efx_ethtool_set_settings(struct net_device *net_dev,
214 struct ethtool_cmd *ecmd)
215{
767e468c 216 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 217 int rc;
218
219 mutex_lock(&efx->mac_lock);
220 rc = falcon_xmac_set_settings(efx, ecmd);
221 mutex_unlock(&efx->mac_lock);
222 if (!rc)
223 efx_reconfigure_port(efx);
224
225 return rc;
226}
227
228static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
229 struct ethtool_drvinfo *info)
230{
767e468c 231 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 232
233 strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
234 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
235 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
236}
237
3273c2e8
BH		 238/**
239 * efx_fill_test - fill in an individual self-test entry
240 * @test_index: Index of the test
241 * @strings: Ethtool strings, or %NULL
242 * @data: Ethtool test results, or %NULL
243 * @test: Pointer to test result (used only if data != %NULL)
740ced99
BH		 244 * @unit_format: Unit name format (e.g. "chan\%d")
245 * @unit_id: Unit id (e.g. 0 for "chan0")
3273c2e8 246 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
740ced99 247 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
3273c2e8
BH		 248 *
249 * Fill in an individual self-test entry.
250 */
251static void efx_fill_test(unsigned int test_index,
252 struct ethtool_string *strings, u64 *data,
253 int *test, const char *unit_format, int unit_id,
254 const char *test_format, const char *test_id)
255{
256 struct ethtool_string unit_str, test_str;
257
258 /* Fill data value, if applicable */
259 if (data)
260 data[test_index] = *test;
261
262 /* Fill string, if applicable */
263 if (strings) {
264 snprintf(unit_str.name, sizeof(unit_str.name),
265 unit_format, unit_id);
266 snprintf(test_str.name, sizeof(test_str.name),
267 test_format, test_id);
268 snprintf(strings[test_index].name,
269 sizeof(strings[test_index].name),
740ced99 270 "%-6s %-24s", unit_str.name, test_str.name);
3273c2e8
BH		 271 }
272}
273
274#define EFX_PORT_NAME "port%d", 0
740ced99 275#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
3273c2e8
BH		 276#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
277#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
278#define EFX_LOOPBACK_NAME(_mode, _counter) \
279 "loopback.%s." _counter, LOOPBACK_MODE_NAME(mode)
280
281/**
282 * efx_fill_loopback_test - fill in a block of loopback self-test entries
283 * @efx: Efx NIC
284 * @lb_tests: Efx loopback self-test results structure
285 * @mode: Loopback test mode
286 * @test_index: Starting index of the test
287 * @strings: Ethtool strings, or %NULL
288 * @data: Ethtool test results, or %NULL
289 */
290static int efx_fill_loopback_test(struct efx_nic *efx,
291 struct efx_loopback_self_tests *lb_tests,
292 enum efx_loopback_mode mode,
293 unsigned int test_index,
294 struct ethtool_string *strings, u64 *data)
295{
296 struct efx_tx_queue *tx_queue;
297
298 efx_for_each_tx_queue(tx_queue, efx) {
299 efx_fill_test(test_index++, strings, data,
300 &lb_tests->tx_sent[tx_queue->queue],
301 EFX_TX_QUEUE_NAME(tx_queue),
302 EFX_LOOPBACK_NAME(mode, "tx_sent"));
303 efx_fill_test(test_index++, strings, data,
304 &lb_tests->tx_done[tx_queue->queue],
305 EFX_TX_QUEUE_NAME(tx_queue),
306 EFX_LOOPBACK_NAME(mode, "tx_done"));
307 }
308 efx_fill_test(test_index++, strings, data,
309 &lb_tests->rx_good,
310 EFX_PORT_NAME,
311 EFX_LOOPBACK_NAME(mode, "rx_good"));
312 efx_fill_test(test_index++, strings, data,
313 &lb_tests->rx_bad,
314 EFX_PORT_NAME,
315 EFX_LOOPBACK_NAME(mode, "rx_bad"));
316
317 return test_index;
318}
319
320/**
321 * efx_ethtool_fill_self_tests - get self-test details
322 * @efx: Efx NIC
323 * @tests: Efx self-test results structure, or %NULL
324 * @strings: Ethtool strings, or %NULL
325 * @data: Ethtool test results, or %NULL
326 */
327static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
328 struct efx_self_tests *tests,
329 struct ethtool_string *strings,
330 u64 *data)
331{
332 struct efx_channel *channel;
333 unsigned int n = 0;
334 enum efx_loopback_mode mode;
335
8c8661e4
BH		 336 efx_fill_test(n++, strings, data, &tests->mii,
337 "core", 0, "mii", NULL);
338 efx_fill_test(n++, strings, data, &tests->nvram,
339 "core", 0, "nvram", NULL);
3273c2e8
BH		 340 efx_fill_test(n++, strings, data, &tests->interrupt,
341 "core", 0, "interrupt", NULL);
342
343 /* Event queues */
344 efx_for_each_channel(channel, efx) {
345 efx_fill_test(n++, strings, data,
346 &tests->eventq_dma[channel->channel],
347 EFX_CHANNEL_NAME(channel),
348 "eventq.dma", NULL);
349 efx_fill_test(n++, strings, data,
350 &tests->eventq_int[channel->channel],
351 EFX_CHANNEL_NAME(channel),
352 "eventq.int", NULL);
353 efx_fill_test(n++, strings, data,
354 &tests->eventq_poll[channel->channel],
355 EFX_CHANNEL_NAME(channel),
356 "eventq.poll", NULL);
357 }
358
8c8661e4
BH		 359 efx_fill_test(n++, strings, data, &tests->registers,
360 "core", 0, "registers", NULL);
361 efx_fill_test(n++, strings, data, &tests->phy,
362 EFX_PORT_NAME, "phy", NULL);
3273c2e8
BH		 363
364 /* Loopback tests */
365 efx_fill_test(n++, strings, data, &tests->loopback_speed,
366 EFX_PORT_NAME, "loopback.speed", NULL);
367 efx_fill_test(n++, strings, data, &tests->loopback_full_duplex,
368 EFX_PORT_NAME, "loopback.full_duplex", NULL);
8c8661e4 369 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
3273c2e8
BH		 370 if (!(efx->loopback_modes & (1 << mode)))
371 continue;
372 n = efx_fill_loopback_test(efx,
373 &tests->loopback[mode], mode, n,
374 strings, data);
375 }
376
377 return n;
378}
379
3594e131
BH		 380static int efx_ethtool_get_sset_count(struct net_device *net_dev,
381 int string_set)
8ceee660 382{
3594e131
BH		 383 switch (string_set) {
384 case ETH_SS_STATS:
385 return EFX_ETHTOOL_NUM_STATS;
386 case ETH_SS_TEST:
387 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
388 NULL, NULL, NULL);
389 default:
390 return -EINVAL;
391 }
3273c2e8
BH		 392}
393
8ceee660
BH		 394static void efx_ethtool_get_strings(struct net_device *net_dev,
395 u32 string_set, u8 *strings)
396{
767e468c 397 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 398 struct ethtool_string *ethtool_strings =
399 (struct ethtool_string *)strings;
400 int i;
401
3273c2e8
BH		 402 switch (string_set) {
403 case ETH_SS_STATS:
8ceee660
BH		 404 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
405 strncpy(ethtool_strings[i].name,
406 efx_ethtool_stats[i].name,
407 sizeof(ethtool_strings[i].name));
3273c2e8
BH		 408 break;
409 case ETH_SS_TEST:
410 efx_ethtool_fill_self_tests(efx, NULL,
411 ethtool_strings, NULL);
412 break;
413 default:
414 /* No other string sets */
415 break;
416 }
8ceee660
BH		 417}
418
419static void efx_ethtool_get_stats(struct net_device *net_dev,
420 struct ethtool_stats *stats,
421 u64 *data)
422{
767e468c 423 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 424 struct efx_mac_stats *mac_stats = &efx->mac_stats;
425 struct efx_ethtool_stat *stat;
426 struct efx_channel *channel;
427 int i;
428
429 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
430
431 /* Update MAC and NIC statistics */
eeda3fd6 432 dev_get_stats(net_dev);
8ceee660
BH		 433
434 /* Fill detailed statistics buffer */
435 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
436 stat = &efx_ethtool_stats[i];
437 switch (stat->source) {
438 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
439 data[i] = stat->get_stat((void *)mac_stats +
440 stat->offset);
441 break;
442 case EFX_ETHTOOL_STAT_SOURCE_nic:
443 data[i] = stat->get_stat((void *)efx + stat->offset);
444 break;
445 case EFX_ETHTOOL_STAT_SOURCE_channel:
446 data[i] = 0;
447 efx_for_each_channel(channel, efx)
448 data[i] += stat->get_stat((void *)channel +
449 stat->offset);
450 break;
451 }
452 }
453}
454
8ceee660
BH		 455static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
456{
767e468c 457 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 458
459 /* No way to stop the hardware doing the checks; we just
460 * ignore the result.
461 */
dc8cfa55 462 efx->rx_checksum_enabled = !!enable;
8ceee660
BH		 463
464 return 0;
465}
466
467static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
468{
767e468c 469 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 470
471 return efx->rx_checksum_enabled;
472}
473
3273c2e8
BH		 474static void efx_ethtool_self_test(struct net_device *net_dev,
475 struct ethtool_test *test, u64 *data)
476{
767e468c 477 struct efx_nic *efx = netdev_priv(net_dev);
3273c2e8
BH		 478 struct efx_self_tests efx_tests;
479 int offline, already_up;
480 int rc;
481
482 ASSERT_RTNL();
483 if (efx->state != STATE_RUNNING) {
484 rc = -EIO;
485 goto fail1;
486 }
487
488 /* We need rx buffers and interrupts. */
489 already_up = (efx->net_dev->flags & IFF_UP);
490 if (!already_up) {
491 rc = dev_open(efx->net_dev);
492 if (rc) {
493 EFX_ERR(efx, "failed opening device.\n");
494 goto fail2;
495 }
496 }
497
498 memset(&efx_tests, 0, sizeof(efx_tests));
499 offline = (test->flags & ETH_TEST_FL_OFFLINE);
500
501 /* Perform online self tests first */
502 rc = efx_online_test(efx, &efx_tests);
503 if (rc)
504 goto out;
505
506 /* Perform offline tests only if online tests passed */
8c8661e4 507 if (offline)
bc3c90a2
BH		 508 rc = efx_offline_test(efx, &efx_tests,
509 efx->loopback_modes);
3273c2e8
BH		 510
511 out:
512 if (!already_up)
513 dev_close(efx->net_dev);
514
515 EFX_LOG(efx, "%s all %sline self-tests\n",
516 rc == 0 ? "passed" : "failed", offline ? "off" : "on");
517
518 fail2:
519 fail1:
520 /* Fill ethtool results structures */
521 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
522 if (rc)
523 test->flags |= ETH_TEST_FL_FAILED;
524}
525
8ceee660
BH		 526/* Restart autonegotiation */
527static int efx_ethtool_nway_reset(struct net_device *net_dev)
528{
767e468c 529 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 530
531 return mii_nway_restart(&efx->mii);
532}
533
534static u32 efx_ethtool_get_link(struct net_device *net_dev)
535{
767e468c 536 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 537
538 return efx->link_up;
539}
540
4a5b504d
BH		 541static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
542{
543 struct efx_nic *efx = netdev_priv(net_dev);
544 struct efx_spi_device *spi = efx->spi_eeprom;
545
546 if (!spi)
547 return 0;
0a95f563
BH		 548 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
549 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
4a5b504d
BH		 550}
551
552static int efx_ethtool_get_eeprom(struct net_device *net_dev,
553 struct ethtool_eeprom *eeprom, u8 *buf)
554{
555 struct efx_nic *efx = netdev_priv(net_dev);
556 struct efx_spi_device *spi = efx->spi_eeprom;
557 size_t len;
558 int rc;
559
f4150724 560 mutex_lock(&efx->spi_lock);
0a95f563 561 rc = falcon_spi_read(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
4a5b504d 562 eeprom->len, &len, buf);
f4150724 563 mutex_unlock(&efx->spi_lock);
4a5b504d
BH		 564 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
565 eeprom->len = len;
566 return rc;
567}
568
569static int efx_ethtool_set_eeprom(struct net_device *net_dev,
570 struct ethtool_eeprom *eeprom, u8 *buf)
571{
572 struct efx_nic *efx = netdev_priv(net_dev);
573 struct efx_spi_device *spi = efx->spi_eeprom;
574 size_t len;
575 int rc;
576
577 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
578 return -EINVAL;
579
f4150724 580 mutex_lock(&efx->spi_lock);
0a95f563 581 rc = falcon_spi_write(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
4a5b504d 582 eeprom->len, &len, buf);
f4150724 583 mutex_unlock(&efx->spi_lock);
4a5b504d
BH		 584 eeprom->len = len;
585 return rc;
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_tx_queue *tx_queue;
593 struct efx_rx_queue *rx_queue;
594 struct efx_channel *channel;
595
596 memset(coalesce, 0, sizeof(*coalesce));
597
598 /* Find lowest IRQ moderation across all used TX queues */
599 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
600 efx_for_each_tx_queue(tx_queue, efx) {
601 channel = tx_queue->channel;
602 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
603 if (channel->used_flags != EFX_USED_BY_RX_TX)
604 coalesce->tx_coalesce_usecs_irq =
605 channel->irq_moderation;
606 else
607 coalesce->tx_coalesce_usecs_irq = 0;
608 }
609 }
610
611 /* Find lowest IRQ moderation across all used RX queues */
612 coalesce->rx_coalesce_usecs_irq = ~((u32) 0);
613 efx_for_each_rx_queue(rx_queue, efx) {
614 channel = rx_queue->channel;
615 if (channel->irq_moderation < coalesce->rx_coalesce_usecs_irq)
616 coalesce->rx_coalesce_usecs_irq =
617 channel->irq_moderation;
618 }
619
620 return 0;
621}
622
623/* Set coalescing parameters
624 * The difficulties occur for shared channels
625 */
626static int efx_ethtool_set_coalesce(struct net_device *net_dev,
627 struct ethtool_coalesce *coalesce)
628{
767e468c 629 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 630 struct efx_channel *channel;
631 struct efx_tx_queue *tx_queue;
632 unsigned tx_usecs, rx_usecs;
633
634 if (coalesce->use_adaptive_rx_coalesce ||
635 coalesce->use_adaptive_tx_coalesce)
636 return -EOPNOTSUPP;
637
638 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
639 EFX_ERR(efx, "invalid coalescing setting. "
640 "Only rx/tx_coalesce_usecs_irq are supported\n");
641 return -EOPNOTSUPP;
642 }
643
644 rx_usecs = coalesce->rx_coalesce_usecs_irq;
645 tx_usecs = coalesce->tx_coalesce_usecs_irq;
646
647 /* If the channel is shared only allow RX parameters to be set */
648 efx_for_each_tx_queue(tx_queue, efx) {
649 if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
650 tx_usecs) {
651 EFX_ERR(efx, "Channel is shared. "
652 "Only RX coalescing may be set\n");
653 return -EOPNOTSUPP;
654 }
655 }
656
657 efx_init_irq_moderation(efx, tx_usecs, rx_usecs);
658
659 /* Reset channel to pick up new moderation value. Note that
660 * this may change the value of the irq_moderation field
661 * (e.g. to allow for hardware timer granularity).
662 */
663 efx_for_each_channel(channel, efx)
664 falcon_set_int_moderation(channel);
665
666 return 0;
667}
668
669static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
670 struct ethtool_pauseparam *pause)
671{
767e468c 672 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 673 enum efx_fc_type flow_control = efx->flow_control;
674 int rc;
675
676 flow_control &= ~(EFX_FC_RX | EFX_FC_TX | EFX_FC_AUTO);
677 flow_control |= pause->rx_pause ? EFX_FC_RX : 0;
678 flow_control |= pause->tx_pause ? EFX_FC_TX : 0;
679 flow_control |= pause->autoneg ? EFX_FC_AUTO : 0;
680
681 /* Try to push the pause parameters */
682 mutex_lock(&efx->mac_lock);
683 rc = falcon_xmac_set_pause(efx, flow_control);
684 mutex_unlock(&efx->mac_lock);
685
686 if (!rc)
687 efx_reconfigure_port(efx);
688
689 return rc;
690}
691
692static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
693 struct ethtool_pauseparam *pause)
694{
767e468c 695 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 696
dc8cfa55
BH		 697 pause->rx_pause = !!(efx->flow_control & EFX_FC_RX);
698 pause->tx_pause = !!(efx->flow_control & EFX_FC_TX);
699 pause->autoneg = !!(efx->flow_control & EFX_FC_AUTO);
8ceee660
BH		 700}
701
702
703struct ethtool_ops efx_ethtool_ops = {
704 .get_settings = efx_ethtool_get_settings,
705 .set_settings = efx_ethtool_set_settings,
706 .get_drvinfo = efx_ethtool_get_drvinfo,
707 .nway_reset = efx_ethtool_nway_reset,
708 .get_link = efx_ethtool_get_link,
4a5b504d
BH		 709 .get_eeprom_len = efx_ethtool_get_eeprom_len,
710 .get_eeprom = efx_ethtool_get_eeprom,
711 .set_eeprom = efx_ethtool_set_eeprom,
8ceee660
BH		 712 .get_coalesce = efx_ethtool_get_coalesce,
713 .set_coalesce = efx_ethtool_set_coalesce,
714 .get_pauseparam = efx_ethtool_get_pauseparam,
715 .set_pauseparam = efx_ethtool_set_pauseparam,
716 .get_rx_csum = efx_ethtool_get_rx_csum,
717 .set_rx_csum = efx_ethtool_set_rx_csum,
718 .get_tx_csum = ethtool_op_get_tx_csum,
60ac1065 719 .set_tx_csum = ethtool_op_set_tx_csum,
8ceee660
BH		 720 .get_sg = ethtool_op_get_sg,
721 .set_sg = ethtool_op_set_sg,
b9b39b62 722 .get_tso = ethtool_op_get_tso,
60ac1065 723 .set_tso = ethtool_op_set_tso,
8ceee660
BH		 724 .get_flags = ethtool_op_get_flags,
725 .set_flags = ethtool_op_set_flags,
3594e131 726 .get_sset_count = efx_ethtool_get_sset_count,
3273c2e8 727 .self_test = efx_ethtool_self_test,
8ceee660
BH		 728 .get_strings = efx_ethtool_get_strings,
729 .phys_id = efx_ethtool_phys_id,
8ceee660
BH		 730 .get_ethtool_stats = efx_ethtool_get_stats,
731};
Linux kernel - Deliverables
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