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sfc: Add support for SFC9000 family (1)
[net-next-2.6.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"
04cc8cac 15#include "workarounds.h"
3273c2e8 16#include "selftest.h"
8ceee660 17#include "efx.h"
744093c9 18#include "nic.h"
4a5b504d 19#include "spi.h"
04cc8cac 20#include "mdio_10g.h"
8ceee660 21
8ceee660
BH		 22struct ethtool_string {
23 char name[ETH_GSTRING_LEN];
24};
25
26struct efx_ethtool_stat {
27 const char *name;
28 enum {
29 EFX_ETHTOOL_STAT_SOURCE_mac_stats,
30 EFX_ETHTOOL_STAT_SOURCE_nic,
31 EFX_ETHTOOL_STAT_SOURCE_channel
32 } source;
33 unsigned offset;
34 u64(*get_stat) (void *field); /* Reader function */
35};
36
37/* Initialiser for a struct #efx_ethtool_stat with type-checking */
38#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
39 get_stat_function) { \
40 .name = #stat_name, \
41 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
42 .offset = ((((field_type *) 0) == \
43 &((struct efx_##source_name *)0)->field) ? \
44 offsetof(struct efx_##source_name, field) : \
45 offsetof(struct efx_##source_name, field)), \
46 .get_stat = get_stat_function, \
47}
48
49static u64 efx_get_uint_stat(void *field)
50{
51 return *(unsigned int *)field;
52}
53
54static u64 efx_get_ulong_stat(void *field)
55{
56 return *(unsigned long *)field;
57}
58
59static u64 efx_get_u64_stat(void *field)
60{
61 return *(u64 *) field;
62}
63
64static u64 efx_get_atomic_stat(void *field)
65{
66 return atomic_read((atomic_t *) field);
67}
68
69#define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
70 EFX_ETHTOOL_STAT(field, mac_stats, field, \
71 unsigned long, efx_get_ulong_stat)
72
73#define EFX_ETHTOOL_U64_MAC_STAT(field) \
74 EFX_ETHTOOL_STAT(field, mac_stats, field, \
75 u64, efx_get_u64_stat)
76
77#define EFX_ETHTOOL_UINT_NIC_STAT(name) \
78 EFX_ETHTOOL_STAT(name, nic, n_##name, \
79 unsigned int, efx_get_uint_stat)
80
81#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
82 EFX_ETHTOOL_STAT(field, nic, field, \
83 atomic_t, efx_get_atomic_stat)
84
85#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
86 EFX_ETHTOOL_STAT(field, channel, n_##field, \
87 unsigned int, efx_get_uint_stat)
88
89static struct efx_ethtool_stat efx_ethtool_stats[] = {
90 EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
91 EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
92 EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
93 EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
94 EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
95 EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
96 EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
97 EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
98 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
99 EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
100 EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
101 EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
102 EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
103 EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
104 EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
105 EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
106 EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
107 EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
108 EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
109 EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
110 EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
111 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
112 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
113 EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
114 EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
115 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
116 EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
117 EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
118 EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
119 EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
120 EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
121 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
122 EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
123 EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
124 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
125 EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
126 EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
127 EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
128 EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
129 EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
130 EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
131 EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
132 EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
133 EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
134 EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
135 EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
136 EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
137 EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
138 EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
139 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
140 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
141 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
142 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
143 EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
144 EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
145 EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
146 EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
147 EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
148 EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
149 EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
150 EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
151 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
152 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
153 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
154 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
c1ac403b 155 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
8ceee660
BH		 156 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
157};
158
159/* Number of ethtool statistics */
160#define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
161
4a5b504d 162#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
4a5b504d 163
8ceee660
BH		 164/**************************************************************************
165 *
166 * Ethtool operations
167 *
168 **************************************************************************
169 */
170
171/* Identify device by flashing LEDs */
65f667fb 172static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
8ceee660 173{
767e468c 174 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 175
398468ed 176 do {
06629f07 177 efx->type->set_id_led(efx, EFX_LED_ON);
398468ed
BH		 178 schedule_timeout_interruptible(HZ / 2);
179
06629f07 180 efx->type->set_id_led(efx, EFX_LED_OFF);
398468ed
BH		 181 schedule_timeout_interruptible(HZ / 2);
182 } while (!signal_pending(current) && --count != 0);
183
06629f07 184 efx->type->set_id_led(efx, EFX_LED_DEFAULT);
8ceee660
BH		 185 return 0;
186}
187
188/* This must be called with rtnl_lock held. */
189int efx_ethtool_get_settings(struct net_device *net_dev,
190 struct ethtool_cmd *ecmd)
191{
767e468c 192 struct efx_nic *efx = netdev_priv(net_dev);
d3245b28 193 struct efx_link_state *link_state = &efx->link_state;
8ceee660
BH		 194
195 mutex_lock(&efx->mac_lock);
177dfcd8 196 efx->phy_op->get_settings(efx, ecmd);
8ceee660
BH		 197 mutex_unlock(&efx->mac_lock);
198
177dfcd8
BH		 199 /* Falcon GMAC does not support 1000Mbps HD */
200 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
d3245b28
BH		 201 /* Both MACs support pause frames (bidirectional and respond-only) */
202 ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
203
204 if (LOOPBACK_INTERNAL(efx)) {
205 ecmd->speed = link_state->speed;
206 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
207 }
177dfcd8
BH		 208
209 return 0;
8ceee660
BH		 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
177dfcd8
BH		 219 /* Falcon GMAC does not support 1000Mbps HD */
220 if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
221 EFX_LOG(efx, "rejecting unsupported 1000Mbps HD"
222 " setting\n");
223 return -EINVAL;
224 }
225
8ceee660 226 mutex_lock(&efx->mac_lock);
177dfcd8 227 rc = efx->phy_op->set_settings(efx, ecmd);
8ceee660 228 mutex_unlock(&efx->mac_lock);
8ceee660
BH		 229 return rc;
230}
231
232static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
233 struct ethtool_drvinfo *info)
234{
767e468c 235 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 236
237 strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
238 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
239 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
240}
241
3273c2e8
BH		 242/**
243 * efx_fill_test - fill in an individual self-test entry
244 * @test_index: Index of the test
245 * @strings: Ethtool strings, or %NULL
246 * @data: Ethtool test results, or %NULL
247 * @test: Pointer to test result (used only if data != %NULL)
740ced99
BH		 248 * @unit_format: Unit name format (e.g. "chan\%d")
249 * @unit_id: Unit id (e.g. 0 for "chan0")
3273c2e8 250 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
740ced99 251 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
3273c2e8
BH		 252 *
253 * Fill in an individual self-test entry.
254 */
255static void efx_fill_test(unsigned int test_index,
256 struct ethtool_string *strings, u64 *data,
257 int *test, const char *unit_format, int unit_id,
258 const char *test_format, const char *test_id)
259{
260 struct ethtool_string unit_str, test_str;
261
262 /* Fill data value, if applicable */
263 if (data)
264 data[test_index] = *test;
265
266 /* Fill string, if applicable */
267 if (strings) {
11e66966
BH		 268 if (strchr(unit_format, '%'))
269 snprintf(unit_str.name, sizeof(unit_str.name),
270 unit_format, unit_id);
271 else
272 strcpy(unit_str.name, unit_format);
3273c2e8
BH		 273 snprintf(test_str.name, sizeof(test_str.name),
274 test_format, test_id);
275 snprintf(strings[test_index].name,
276 sizeof(strings[test_index].name),
740ced99 277 "%-6s %-24s", unit_str.name, test_str.name);
3273c2e8
BH		 278 }
279}
280
740ced99 281#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
3273c2e8
BH		 282#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
283#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
284#define EFX_LOOPBACK_NAME(_mode, _counter) \
c459302d 285 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
3273c2e8
BH		 286
287/**
288 * efx_fill_loopback_test - fill in a block of loopback self-test entries
289 * @efx: Efx NIC
290 * @lb_tests: Efx loopback self-test results structure
291 * @mode: Loopback test mode
292 * @test_index: Starting index of the test
293 * @strings: Ethtool strings, or %NULL
294 * @data: Ethtool test results, or %NULL
295 */
296static int efx_fill_loopback_test(struct efx_nic *efx,
297 struct efx_loopback_self_tests *lb_tests,
298 enum efx_loopback_mode mode,
299 unsigned int test_index,
300 struct ethtool_string *strings, u64 *data)
301{
302 struct efx_tx_queue *tx_queue;
303
304 efx_for_each_tx_queue(tx_queue, efx) {
305 efx_fill_test(test_index++, strings, data,
306 &lb_tests->tx_sent[tx_queue->queue],
307 EFX_TX_QUEUE_NAME(tx_queue),
308 EFX_LOOPBACK_NAME(mode, "tx_sent"));
309 efx_fill_test(test_index++, strings, data,
310 &lb_tests->tx_done[tx_queue->queue],
311 EFX_TX_QUEUE_NAME(tx_queue),
312 EFX_LOOPBACK_NAME(mode, "tx_done"));
313 }
314 efx_fill_test(test_index++, strings, data,
315 &lb_tests->rx_good,
11e66966 316 "rx", 0,
3273c2e8
BH		 317 EFX_LOOPBACK_NAME(mode, "rx_good"));
318 efx_fill_test(test_index++, strings, data,
319 &lb_tests->rx_bad,
11e66966 320 "rx", 0,
3273c2e8
BH		 321 EFX_LOOPBACK_NAME(mode, "rx_bad"));
322
323 return test_index;
324}
325
326/**
327 * efx_ethtool_fill_self_tests - get self-test details
328 * @efx: Efx NIC
329 * @tests: Efx self-test results structure, or %NULL
330 * @strings: Ethtool strings, or %NULL
331 * @data: Ethtool test results, or %NULL
332 */
333static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
334 struct efx_self_tests *tests,
335 struct ethtool_string *strings,
336 u64 *data)
337{
338 struct efx_channel *channel;
1796721a 339 unsigned int n = 0, i;
3273c2e8
BH		 340 enum efx_loopback_mode mode;
341
68e7f45e
BH		 342 efx_fill_test(n++, strings, data, &tests->mdio,
343 "core", 0, "mdio", NULL);
8c8661e4
BH		 344 efx_fill_test(n++, strings, data, &tests->nvram,
345 "core", 0, "nvram", NULL);
3273c2e8
BH		 346 efx_fill_test(n++, strings, data, &tests->interrupt,
347 "core", 0, "interrupt", NULL);
348
349 /* Event queues */
350 efx_for_each_channel(channel, efx) {
351 efx_fill_test(n++, strings, data,
352 &tests->eventq_dma[channel->channel],
353 EFX_CHANNEL_NAME(channel),
354 "eventq.dma", NULL);
355 efx_fill_test(n++, strings, data,
356 &tests->eventq_int[channel->channel],
357 EFX_CHANNEL_NAME(channel),
358 "eventq.int", NULL);
359 efx_fill_test(n++, strings, data,
360 &tests->eventq_poll[channel->channel],
361 EFX_CHANNEL_NAME(channel),
362 "eventq.poll", NULL);
363 }
364
8c8661e4
BH		 365 efx_fill_test(n++, strings, data, &tests->registers,
366 "core", 0, "registers", NULL);
1796721a 367
c1c4f453
BH		 368 if (efx->phy_op->run_tests != NULL) {
369 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
370
371 for (i = 0; true; ++i) {
372 const char *name;
373
374 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
375 name = efx->phy_op->test_name(efx, i);
376 if (name == NULL)
377 break;
378
379 efx_fill_test(n++, strings, data, &tests->phy[i],
380 "phy", 0, name, NULL);
381 }
382 }
3273c2e8
BH		 383
384 /* Loopback tests */
8c8661e4 385 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
3273c2e8
BH		 386 if (!(efx->loopback_modes & (1 << mode)))
387 continue;
388 n = efx_fill_loopback_test(efx,
389 &tests->loopback[mode], mode, n,
390 strings, data);
391 }
392
393 return n;
394}
395
3594e131
BH		 396static int efx_ethtool_get_sset_count(struct net_device *net_dev,
397 int string_set)
8ceee660 398{
3594e131
BH		 399 switch (string_set) {
400 case ETH_SS_STATS:
401 return EFX_ETHTOOL_NUM_STATS;
402 case ETH_SS_TEST:
403 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
404 NULL, NULL, NULL);
405 default:
406 return -EINVAL;
407 }
3273c2e8
BH		 408}
409
8ceee660
BH		 410static void efx_ethtool_get_strings(struct net_device *net_dev,
411 u32 string_set, u8 *strings)
412{
767e468c 413 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 414 struct ethtool_string *ethtool_strings =
415 (struct ethtool_string *)strings;
416 int i;
417
3273c2e8
BH		 418 switch (string_set) {
419 case ETH_SS_STATS:
8ceee660
BH		 420 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
421 strncpy(ethtool_strings[i].name,
422 efx_ethtool_stats[i].name,
423 sizeof(ethtool_strings[i].name));
3273c2e8
BH		 424 break;
425 case ETH_SS_TEST:
426 efx_ethtool_fill_self_tests(efx, NULL,
427 ethtool_strings, NULL);
428 break;
429 default:
430 /* No other string sets */
431 break;
432 }
8ceee660
BH		 433}
434
435static void efx_ethtool_get_stats(struct net_device *net_dev,
436 struct ethtool_stats *stats,
437 u64 *data)
438{
767e468c 439 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 440 struct efx_mac_stats *mac_stats = &efx->mac_stats;
441 struct efx_ethtool_stat *stat;
442 struct efx_channel *channel;
443 int i;
444
445 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
446
447 /* Update MAC and NIC statistics */
eeda3fd6 448 dev_get_stats(net_dev);
8ceee660
BH		 449
450 /* Fill detailed statistics buffer */
451 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
452 stat = &efx_ethtool_stats[i];
453 switch (stat->source) {
454 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
455 data[i] = stat->get_stat((void *)mac_stats +
456 stat->offset);
457 break;
458 case EFX_ETHTOOL_STAT_SOURCE_nic:
459 data[i] = stat->get_stat((void *)efx + stat->offset);
460 break;
461 case EFX_ETHTOOL_STAT_SOURCE_channel:
462 data[i] = 0;
463 efx_for_each_channel(channel, efx)
464 data[i] += stat->get_stat((void *)channel +
465 stat->offset);
466 break;
467 }
468 }
469}
470
c383b537
BH		 471static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
472{
473 struct efx_nic *efx = netdev_priv(net_dev);
474 unsigned long features = efx->type->offload_features & NETIF_F_ALL_CSUM;
475
476 if (enable)
477 net_dev->features |= features;
478 else
479 net_dev->features &= ~features;
480
481 return 0;
482}
483
8ceee660
BH		 484static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
485{
767e468c 486 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 487
488 /* No way to stop the hardware doing the checks; we just
489 * ignore the result.
490 */
dc8cfa55 491 efx->rx_checksum_enabled = !!enable;
8ceee660
BH		 492
493 return 0;
494}
495
496static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
497{
767e468c 498 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 499
500 return efx->rx_checksum_enabled;
501}
502
3273c2e8
BH		 503static void efx_ethtool_self_test(struct net_device *net_dev,
504 struct ethtool_test *test, u64 *data)
505{
767e468c 506 struct efx_nic *efx = netdev_priv(net_dev);
3273c2e8 507 struct efx_self_tests efx_tests;
2ef3068e 508 int already_up;
3273c2e8
BH		 509 int rc;
510
511 ASSERT_RTNL();
512 if (efx->state != STATE_RUNNING) {
513 rc = -EIO;
514 goto fail1;
515 }
516
517 /* We need rx buffers and interrupts. */
518 already_up = (efx->net_dev->flags & IFF_UP);
519 if (!already_up) {
520 rc = dev_open(efx->net_dev);
521 if (rc) {
522 EFX_ERR(efx, "failed opening device.\n");
523 goto fail2;
524 }
525 }
526
527 memset(&efx_tests, 0, sizeof(efx_tests));
3273c2e8 528
2ef3068e 529 rc = efx_selftest(efx, &efx_tests, test->flags);
3273c2e8 530
3273c2e8
BH		 531 if (!already_up)
532 dev_close(efx->net_dev);
533
2ef3068e
BH		 534 EFX_LOG(efx, "%s %sline self-tests\n",
535 rc == 0 ? "passed" : "failed",
536 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
3273c2e8
BH		 537
538 fail2:
539 fail1:
540 /* Fill ethtool results structures */
541 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
542 if (rc)
543 test->flags |= ETH_TEST_FL_FAILED;
544}
545
8ceee660
BH		 546/* Restart autonegotiation */
547static int efx_ethtool_nway_reset(struct net_device *net_dev)
548{
767e468c 549 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 550
68e7f45e 551 return mdio45_nway_restart(&efx->mdio);
8ceee660
BH		 552}
553
554static u32 efx_ethtool_get_link(struct net_device *net_dev)
555{
767e468c 556 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 557
eb50c0d6 558 return efx->link_state.up;
8ceee660
BH		 559}
560
4a5b504d
BH		 561static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
562{
563 struct efx_nic *efx = netdev_priv(net_dev);
564 struct efx_spi_device *spi = efx->spi_eeprom;
565
566 if (!spi)
567 return 0;
0a95f563
BH		 568 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
569 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
4a5b504d
BH		 570}
571
572static int efx_ethtool_get_eeprom(struct net_device *net_dev,
573 struct ethtool_eeprom *eeprom, u8 *buf)
574{
575 struct efx_nic *efx = netdev_priv(net_dev);
576 struct efx_spi_device *spi = efx->spi_eeprom;
577 size_t len;
578 int rc;
579
ca54a9f5
BH		 580 rc = mutex_lock_interruptible(&efx->spi_lock);
581 if (rc)
582 return rc;
76884835
BH		 583 rc = falcon_spi_read(efx, spi,
584 eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
4a5b504d 585 eeprom->len, &len, buf);
f4150724 586 mutex_unlock(&efx->spi_lock);
ca54a9f5 587
4a5b504d
BH		 588 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
589 eeprom->len = len;
590 return rc;
591}
592
593static int efx_ethtool_set_eeprom(struct net_device *net_dev,
594 struct ethtool_eeprom *eeprom, u8 *buf)
595{
596 struct efx_nic *efx = netdev_priv(net_dev);
597 struct efx_spi_device *spi = efx->spi_eeprom;
598 size_t len;
599 int rc;
600
601 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
602 return -EINVAL;
603
ca54a9f5
BH		 604 rc = mutex_lock_interruptible(&efx->spi_lock);
605 if (rc)
606 return rc;
76884835
BH		 607 rc = falcon_spi_write(efx, spi,
608 eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
4a5b504d 609 eeprom->len, &len, buf);
f4150724 610 mutex_unlock(&efx->spi_lock);
ca54a9f5 611
4a5b504d
BH		 612 eeprom->len = len;
613 return rc;
614}
615
8ceee660
BH		 616static int efx_ethtool_get_coalesce(struct net_device *net_dev,
617 struct ethtool_coalesce *coalesce)
618{
767e468c 619 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 620 struct efx_tx_queue *tx_queue;
8ceee660
BH		 621 struct efx_channel *channel;
622
623 memset(coalesce, 0, sizeof(*coalesce));
624
625 /* Find lowest IRQ moderation across all used TX queues */
626 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
627 efx_for_each_tx_queue(tx_queue, efx) {
628 channel = tx_queue->channel;
629 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
630 if (channel->used_flags != EFX_USED_BY_RX_TX)
631 coalesce->tx_coalesce_usecs_irq =
632 channel->irq_moderation;
633 else
634 coalesce->tx_coalesce_usecs_irq = 0;
635 }
636 }
637
6fb70fd1
BH		 638 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
639 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
8ceee660 640
152b6a62
BH		 641 coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
642 coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
0d86ebd8 643
8ceee660
BH		 644 return 0;
645}
646
647/* Set coalescing parameters
648 * The difficulties occur for shared channels
649 */
650static int efx_ethtool_set_coalesce(struct net_device *net_dev,
651 struct ethtool_coalesce *coalesce)
652{
767e468c 653 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 654 struct efx_channel *channel;
655 struct efx_tx_queue *tx_queue;
6fb70fd1 656 unsigned tx_usecs, rx_usecs, adaptive;
8ceee660 657
6fb70fd1 658 if (coalesce->use_adaptive_tx_coalesce)
8ceee660
BH		 659 return -EOPNOTSUPP;
660
661 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
662 EFX_ERR(efx, "invalid coalescing setting. "
663 "Only rx/tx_coalesce_usecs_irq are supported\n");
664 return -EOPNOTSUPP;
665 }
666
667 rx_usecs = coalesce->rx_coalesce_usecs_irq;
668 tx_usecs = coalesce->tx_coalesce_usecs_irq;
6fb70fd1 669 adaptive = coalesce->use_adaptive_rx_coalesce;
8ceee660
BH		 670
671 /* If the channel is shared only allow RX parameters to be set */
672 efx_for_each_tx_queue(tx_queue, efx) {
673 if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
674 tx_usecs) {
675 EFX_ERR(efx, "Channel is shared. "
676 "Only RX coalescing may be set\n");
677 return -EOPNOTSUPP;
678 }
679 }
680
6fb70fd1 681 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
8ceee660 682 efx_for_each_channel(channel, efx)
ef2b90ee 683 efx->type->push_irq_moderation(channel);
8ceee660
BH		 684
685 return 0;
686}
687
688static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
689 struct ethtool_pauseparam *pause)
690{
767e468c 691 struct efx_nic *efx = netdev_priv(net_dev);
d3245b28
BH		 692 enum efx_fc_type wanted_fc, old_fc;
693 u32 old_adv;
04cc8cac 694 bool reset;
d3245b28
BH		 695 int rc = 0;
696
697 mutex_lock(&efx->mac_lock);
8ceee660 698
04cc8cac
BH		 699 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
700 (pause->tx_pause ? EFX_FC_TX : 0) |
701 (pause->autoneg ? EFX_FC_AUTO : 0));
702
703 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
704 EFX_LOG(efx, "Flow control unsupported: tx ON rx OFF\n");
d3245b28
BH		 705 rc = -EINVAL;
706 goto out;
04cc8cac
BH		 707 }
708
d3245b28
BH		 709 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
710 EFX_LOG(efx, "Autonegotiation is disabled\n");
711 rc = -EINVAL;
712 goto out;
04cc8cac
BH		 713 }
714
715 /* TX flow control may automatically turn itself off if the
716 * link partner (intermittently) stops responding to pause
717 * frames. There isn't any indication that this has happened,
718 * so the best we do is leave it up to the user to spot this
719 * and fix it be cycling transmit flow control on this end. */
720 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
721 if (EFX_WORKAROUND_11482(efx) && reset) {
daeda630 722 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
04cc8cac 723 /* Recover by resetting the EM block */
d3245b28
BH		 724 falcon_stop_nic_stats(efx);
725 falcon_drain_tx_fifo(efx);
726 efx->mac_op->reconfigure(efx);
727 falcon_start_nic_stats(efx);
04cc8cac
BH		 728 } else {
729 /* Schedule a reset to recover */
730 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
731 }
732 }
733
d3245b28
BH		 734 old_adv = efx->link_advertising;
735 old_fc = efx->wanted_fc;
736 efx_link_set_wanted_fc(efx, wanted_fc);
737 if (efx->link_advertising != old_adv ||
738 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
739 rc = efx->phy_op->reconfigure(efx);
740 if (rc) {
741 EFX_ERR(efx, "Unable to advertise requested flow "
742 "control setting\n");
743 goto out;
744 }
745 }
04cc8cac 746
d3245b28
BH		 747 /* Reconfigure the MAC. The PHY *may* generate a link state change event
748 * if the user just changed the advertised capabilities, but there's no
749 * harm doing this twice */
750 efx->mac_op->reconfigure(efx);
04cc8cac 751
d3245b28 752out:
04cc8cac 753 mutex_unlock(&efx->mac_lock);
8ceee660 754
d3245b28 755 return rc;
8ceee660
BH		 756}
757
758static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
759 struct ethtool_pauseparam *pause)
760{
767e468c 761 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 762
04cc8cac
BH		 763 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
764 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
765 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
8ceee660
BH		 766}
767
768
89c758fa
BH		 769static void efx_ethtool_get_wol(struct net_device *net_dev,
770 struct ethtool_wolinfo *wol)
771{
772 struct efx_nic *efx = netdev_priv(net_dev);
773 return efx->type->get_wol(efx, wol);
774}
775
776
777static int efx_ethtool_set_wol(struct net_device *net_dev,
778 struct ethtool_wolinfo *wol)
779{
780 struct efx_nic *efx = netdev_priv(net_dev);
781 return efx->type->set_wol(efx, wol->wolopts);
782}
783
eb9f6744
BH		 784extern int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
785{
786 struct efx_nic *efx = netdev_priv(net_dev);
787 enum reset_type method;
788 enum {
789 ETH_RESET_EFX_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
790 ETH_RESET_OFFLOAD | ETH_RESET_MAC)
791 };
792
793 /* Check for minimal reset flags */
794 if ((*flags & ETH_RESET_EFX_INVISIBLE) != ETH_RESET_EFX_INVISIBLE)
795 return -EINVAL;
796 *flags ^= ETH_RESET_EFX_INVISIBLE;
797 method = RESET_TYPE_INVISIBLE;
798
799 if (*flags & ETH_RESET_PHY) {
800 *flags ^= ETH_RESET_PHY;
801 method = RESET_TYPE_ALL;
802 }
803
804 if ((*flags & efx->type->reset_world_flags) ==
805 efx->type->reset_world_flags) {
806 *flags ^= efx->type->reset_world_flags;
807 method = RESET_TYPE_WORLD;
808 }
809
810 return efx_reset(efx, method);
811}
812
0fc0b732 813const struct ethtool_ops efx_ethtool_ops = {
8ceee660
BH		 814 .get_settings = efx_ethtool_get_settings,
815 .set_settings = efx_ethtool_set_settings,
816 .get_drvinfo = efx_ethtool_get_drvinfo,
817 .nway_reset = efx_ethtool_nway_reset,
818 .get_link = efx_ethtool_get_link,
4a5b504d
BH		 819 .get_eeprom_len = efx_ethtool_get_eeprom_len,
820 .get_eeprom = efx_ethtool_get_eeprom,
821 .set_eeprom = efx_ethtool_set_eeprom,
8ceee660
BH		 822 .get_coalesce = efx_ethtool_get_coalesce,
823 .set_coalesce = efx_ethtool_set_coalesce,
824 .get_pauseparam = efx_ethtool_get_pauseparam,
825 .set_pauseparam = efx_ethtool_set_pauseparam,
826 .get_rx_csum = efx_ethtool_get_rx_csum,
827 .set_rx_csum = efx_ethtool_set_rx_csum,
828 .get_tx_csum = ethtool_op_get_tx_csum,
c383b537
BH		 829 /* Need to enable/disable IPv6 too */
830 .set_tx_csum = efx_ethtool_set_tx_csum,
8ceee660
BH		 831 .get_sg = ethtool_op_get_sg,
832 .set_sg = ethtool_op_set_sg,
b9b39b62 833 .get_tso = ethtool_op_get_tso,
60ac1065 834 .set_tso = ethtool_op_set_tso,
8ceee660
BH		 835 .get_flags = ethtool_op_get_flags,
836 .set_flags = ethtool_op_set_flags,
3594e131 837 .get_sset_count = efx_ethtool_get_sset_count,
3273c2e8 838 .self_test = efx_ethtool_self_test,
8ceee660
BH		 839 .get_strings = efx_ethtool_get_strings,
840 .phys_id = efx_ethtool_phys_id,
8ceee660 841 .get_ethtool_stats = efx_ethtool_get_stats,
89c758fa
BH		 842 .get_wol = efx_ethtool_get_wol,
843 .set_wol = efx_ethtool_set_wol,
eb9f6744 844 .reset = efx_ethtool_reset,
8ceee660 845};
Clone of davem's net-next-2.6 tree