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sfc: Turn pause frame generation on and off at the MAC, not the RX FIFO
[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>
68e7f45e 13#include <linux/mdio.h>
8ceee660
BH		 14#include <linux/rtnetlink.h>
15#include "net_driver.h"
04cc8cac 16#include "workarounds.h"
3273c2e8 17#include "selftest.h"
8ceee660 18#include "efx.h"
8ceee660 19#include "falcon.h"
4a5b504d 20#include "spi.h"
04cc8cac 21#include "mdio_10g.h"
8ceee660 22
8ceee660
BH		 23struct ethtool_string {
24 char name[ETH_GSTRING_LEN];
25};
26
27struct efx_ethtool_stat {
28 const char *name;
29 enum {
30 EFX_ETHTOOL_STAT_SOURCE_mac_stats,
31 EFX_ETHTOOL_STAT_SOURCE_nic,
32 EFX_ETHTOOL_STAT_SOURCE_channel
33 } source;
34 unsigned offset;
35 u64(*get_stat) (void *field); /* Reader function */
36};
37
38/* Initialiser for a struct #efx_ethtool_stat with type-checking */
39#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
40 get_stat_function) { \
41 .name = #stat_name, \
42 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
43 .offset = ((((field_type *) 0) == \
44 &((struct efx_##source_name *)0)->field) ? \
45 offsetof(struct efx_##source_name, field) : \
46 offsetof(struct efx_##source_name, field)), \
47 .get_stat = get_stat_function, \
48}
49
50static u64 efx_get_uint_stat(void *field)
51{
52 return *(unsigned int *)field;
53}
54
55static u64 efx_get_ulong_stat(void *field)
56{
57 return *(unsigned long *)field;
58}
59
60static u64 efx_get_u64_stat(void *field)
61{
62 return *(u64 *) field;
63}
64
65static u64 efx_get_atomic_stat(void *field)
66{
67 return atomic_read((atomic_t *) field);
68}
69
70#define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
71 EFX_ETHTOOL_STAT(field, mac_stats, field, \
72 unsigned long, efx_get_ulong_stat)
73
74#define EFX_ETHTOOL_U64_MAC_STAT(field) \
75 EFX_ETHTOOL_STAT(field, mac_stats, field, \
76 u64, efx_get_u64_stat)
77
78#define EFX_ETHTOOL_UINT_NIC_STAT(name) \
79 EFX_ETHTOOL_STAT(name, nic, n_##name, \
80 unsigned int, efx_get_uint_stat)
81
82#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
83 EFX_ETHTOOL_STAT(field, nic, field, \
84 atomic_t, efx_get_atomic_stat)
85
86#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
87 EFX_ETHTOOL_STAT(field, channel, n_##field, \
88 unsigned int, efx_get_uint_stat)
89
90static struct efx_ethtool_stat efx_ethtool_stats[] = {
91 EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
92 EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
93 EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
94 EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
95 EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
96 EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
97 EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
98 EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
99 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
100 EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
101 EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
102 EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
103 EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
104 EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
105 EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
106 EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
107 EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
108 EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
109 EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
110 EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
111 EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
112 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
113 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
114 EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
115 EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
116 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
117 EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
118 EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
119 EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
120 EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
121 EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
122 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
123 EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
124 EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
125 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
126 EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
127 EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
128 EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
129 EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
130 EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
131 EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
132 EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
133 EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
134 EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
135 EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
136 EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
137 EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
138 EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
139 EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
140 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
141 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
142 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
143 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
144 EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
145 EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
146 EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
147 EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
148 EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
149 EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
150 EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
151 EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
152 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
153 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
154 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
155 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
c1ac403b 156 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
8ceee660
BH		 157 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
158};
159
160/* Number of ethtool statistics */
161#define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
162
4a5b504d 163#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
4a5b504d 164
8ceee660
BH		 165/**************************************************************************
166 *
167 * Ethtool operations
168 *
169 **************************************************************************
170 */
171
172/* Identify device by flashing LEDs */
65f667fb 173static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
8ceee660 174{
767e468c 175 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 176
398468ed 177 do {
44838a44 178 falcon_board(efx)->type->set_id_led(efx, EFX_LED_ON);
398468ed
BH		 179 schedule_timeout_interruptible(HZ / 2);
180
44838a44 181 falcon_board(efx)->type->set_id_led(efx, EFX_LED_OFF);
398468ed
BH		 182 schedule_timeout_interruptible(HZ / 2);
183 } while (!signal_pending(current) && --count != 0);
184
44838a44 185 falcon_board(efx)->type->set_id_led(efx, EFX_LED_DEFAULT);
8ceee660
BH		 186 return 0;
187}
188
189/* This must be called with rtnl_lock held. */
190int efx_ethtool_get_settings(struct net_device *net_dev,
191 struct ethtool_cmd *ecmd)
192{
767e468c 193 struct efx_nic *efx = netdev_priv(net_dev);
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;
201
202 return 0;
8ceee660
BH		 203}
204
205/* This must be called with rtnl_lock held. */
206int efx_ethtool_set_settings(struct net_device *net_dev,
207 struct ethtool_cmd *ecmd)
208{
767e468c 209 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 210 int rc;
211
177dfcd8
BH		 212 /* Falcon GMAC does not support 1000Mbps HD */
213 if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
214 EFX_LOG(efx, "rejecting unsupported 1000Mbps HD"
215 " setting\n");
216 return -EINVAL;
217 }
218
8ceee660 219 mutex_lock(&efx->mac_lock);
177dfcd8 220 rc = efx->phy_op->set_settings(efx, ecmd);
8ceee660
BH		 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) {
11e66966
BH		 264 if (strchr(unit_format, '%'))
265 snprintf(unit_str.name, sizeof(unit_str.name),
266 unit_format, unit_id);
267 else
268 strcpy(unit_str.name, unit_format);
3273c2e8
BH		 269 snprintf(test_str.name, sizeof(test_str.name),
270 test_format, test_id);
271 snprintf(strings[test_index].name,
272 sizeof(strings[test_index].name),
740ced99 273 "%-6s %-24s", unit_str.name, test_str.name);
3273c2e8
BH		 274 }
275}
276
740ced99 277#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
3273c2e8
BH		 278#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
279#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
280#define EFX_LOOPBACK_NAME(_mode, _counter) \
c459302d 281 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
3273c2e8
BH		 282
283/**
284 * efx_fill_loopback_test - fill in a block of loopback self-test entries
285 * @efx: Efx NIC
286 * @lb_tests: Efx loopback self-test results structure
287 * @mode: Loopback test mode
288 * @test_index: Starting index of the test
289 * @strings: Ethtool strings, or %NULL
290 * @data: Ethtool test results, or %NULL
291 */
292static int efx_fill_loopback_test(struct efx_nic *efx,
293 struct efx_loopback_self_tests *lb_tests,
294 enum efx_loopback_mode mode,
295 unsigned int test_index,
296 struct ethtool_string *strings, u64 *data)
297{
298 struct efx_tx_queue *tx_queue;
299
300 efx_for_each_tx_queue(tx_queue, efx) {
301 efx_fill_test(test_index++, strings, data,
302 &lb_tests->tx_sent[tx_queue->queue],
303 EFX_TX_QUEUE_NAME(tx_queue),
304 EFX_LOOPBACK_NAME(mode, "tx_sent"));
305 efx_fill_test(test_index++, strings, data,
306 &lb_tests->tx_done[tx_queue->queue],
307 EFX_TX_QUEUE_NAME(tx_queue),
308 EFX_LOOPBACK_NAME(mode, "tx_done"));
309 }
310 efx_fill_test(test_index++, strings, data,
311 &lb_tests->rx_good,
11e66966 312 "rx", 0,
3273c2e8
BH		 313 EFX_LOOPBACK_NAME(mode, "rx_good"));
314 efx_fill_test(test_index++, strings, data,
315 &lb_tests->rx_bad,
11e66966 316 "rx", 0,
3273c2e8
BH		 317 EFX_LOOPBACK_NAME(mode, "rx_bad"));
318
319 return test_index;
320}
321
322/**
323 * efx_ethtool_fill_self_tests - get self-test details
324 * @efx: Efx NIC
325 * @tests: Efx self-test results structure, or %NULL
326 * @strings: Ethtool strings, or %NULL
327 * @data: Ethtool test results, or %NULL
328 */
329static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
330 struct efx_self_tests *tests,
331 struct ethtool_string *strings,
332 u64 *data)
333{
334 struct efx_channel *channel;
1796721a 335 unsigned int n = 0, i;
3273c2e8
BH		 336 enum efx_loopback_mode mode;
337
68e7f45e
BH		 338 efx_fill_test(n++, strings, data, &tests->mdio,
339 "core", 0, "mdio", NULL);
8c8661e4
BH		 340 efx_fill_test(n++, strings, data, &tests->nvram,
341 "core", 0, "nvram", NULL);
3273c2e8
BH		 342 efx_fill_test(n++, strings, data, &tests->interrupt,
343 "core", 0, "interrupt", NULL);
344
345 /* Event queues */
346 efx_for_each_channel(channel, efx) {
347 efx_fill_test(n++, strings, data,
348 &tests->eventq_dma[channel->channel],
349 EFX_CHANNEL_NAME(channel),
350 "eventq.dma", NULL);
351 efx_fill_test(n++, strings, data,
352 &tests->eventq_int[channel->channel],
353 EFX_CHANNEL_NAME(channel),
354 "eventq.int", NULL);
355 efx_fill_test(n++, strings, data,
356 &tests->eventq_poll[channel->channel],
357 EFX_CHANNEL_NAME(channel),
358 "eventq.poll", NULL);
359 }
360
8c8661e4
BH		 361 efx_fill_test(n++, strings, data, &tests->registers,
362 "core", 0, "registers", NULL);
1796721a
BH		 363
364 for (i = 0; i < efx->phy_op->num_tests; i++)
365 efx_fill_test(n++, strings, data, &tests->phy[i],
366 "phy", 0, efx->phy_op->test_names[i], NULL);
3273c2e8
BH		 367
368 /* Loopback tests */
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 478 struct efx_self_tests efx_tests;
2ef3068e 479 int already_up;
3273c2e8
BH		 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));
3273c2e8 499
2ef3068e 500 rc = efx_selftest(efx, &efx_tests, test->flags);
3273c2e8 501
3273c2e8
BH		 502 if (!already_up)
503 dev_close(efx->net_dev);
504
2ef3068e
BH		 505 EFX_LOG(efx, "%s %sline self-tests\n",
506 rc == 0 ? "passed" : "failed",
507 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
3273c2e8
BH		 508
509 fail2:
510 fail1:
511 /* Fill ethtool results structures */
512 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
513 if (rc)
514 test->flags |= ETH_TEST_FL_FAILED;
515}
516
8ceee660
BH		 517/* Restart autonegotiation */
518static int efx_ethtool_nway_reset(struct net_device *net_dev)
519{
767e468c 520 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 521
68e7f45e 522 return mdio45_nway_restart(&efx->mdio);
8ceee660
BH		 523}
524
525static u32 efx_ethtool_get_link(struct net_device *net_dev)
526{
767e468c 527 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 528
eb50c0d6 529 return efx->link_state.up;
8ceee660
BH		 530}
531
4a5b504d
BH		 532static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
533{
534 struct efx_nic *efx = netdev_priv(net_dev);
535 struct efx_spi_device *spi = efx->spi_eeprom;
536
537 if (!spi)
538 return 0;
0a95f563
BH		 539 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
540 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
4a5b504d
BH		 541}
542
543static int efx_ethtool_get_eeprom(struct net_device *net_dev,
544 struct ethtool_eeprom *eeprom, u8 *buf)
545{
546 struct efx_nic *efx = netdev_priv(net_dev);
547 struct efx_spi_device *spi = efx->spi_eeprom;
548 size_t len;
549 int rc;
550
ca54a9f5
BH		 551 rc = mutex_lock_interruptible(&efx->spi_lock);
552 if (rc)
553 return rc;
0a95f563 554 rc = falcon_spi_read(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
4a5b504d 555 eeprom->len, &len, buf);
f4150724 556 mutex_unlock(&efx->spi_lock);
ca54a9f5 557
4a5b504d
BH		 558 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
559 eeprom->len = len;
560 return rc;
561}
562
563static int efx_ethtool_set_eeprom(struct net_device *net_dev,
564 struct ethtool_eeprom *eeprom, u8 *buf)
565{
566 struct efx_nic *efx = netdev_priv(net_dev);
567 struct efx_spi_device *spi = efx->spi_eeprom;
568 size_t len;
569 int rc;
570
571 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
572 return -EINVAL;
573
ca54a9f5
BH		 574 rc = mutex_lock_interruptible(&efx->spi_lock);
575 if (rc)
576 return rc;
0a95f563 577 rc = falcon_spi_write(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
4a5b504d 578 eeprom->len, &len, buf);
f4150724 579 mutex_unlock(&efx->spi_lock);
ca54a9f5 580
4a5b504d
BH		 581 eeprom->len = len;
582 return rc;
583}
584
8ceee660
BH		 585static int efx_ethtool_get_coalesce(struct net_device *net_dev,
586 struct ethtool_coalesce *coalesce)
587{
767e468c 588 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 589 struct efx_tx_queue *tx_queue;
8ceee660
BH		 590 struct efx_channel *channel;
591
592 memset(coalesce, 0, sizeof(*coalesce));
593
594 /* Find lowest IRQ moderation across all used TX queues */
595 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
596 efx_for_each_tx_queue(tx_queue, efx) {
597 channel = tx_queue->channel;
598 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
599 if (channel->used_flags != EFX_USED_BY_RX_TX)
600 coalesce->tx_coalesce_usecs_irq =
601 channel->irq_moderation;
602 else
603 coalesce->tx_coalesce_usecs_irq = 0;
604 }
605 }
606
6fb70fd1
BH		 607 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
608 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
8ceee660 609
0d86ebd8
BH		 610 coalesce->tx_coalesce_usecs_irq *= FALCON_IRQ_MOD_RESOLUTION;
611 coalesce->rx_coalesce_usecs_irq *= FALCON_IRQ_MOD_RESOLUTION;
612
8ceee660
BH		 613 return 0;
614}
615
616/* Set coalescing parameters
617 * The difficulties occur for shared channels
618 */
619static int efx_ethtool_set_coalesce(struct net_device *net_dev,
620 struct ethtool_coalesce *coalesce)
621{
767e468c 622 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 623 struct efx_channel *channel;
624 struct efx_tx_queue *tx_queue;
6fb70fd1 625 unsigned tx_usecs, rx_usecs, adaptive;
8ceee660 626
6fb70fd1 627 if (coalesce->use_adaptive_tx_coalesce)
8ceee660
BH		 628 return -EOPNOTSUPP;
629
630 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
631 EFX_ERR(efx, "invalid coalescing setting. "
632 "Only rx/tx_coalesce_usecs_irq are supported\n");
633 return -EOPNOTSUPP;
634 }
635
636 rx_usecs = coalesce->rx_coalesce_usecs_irq;
637 tx_usecs = coalesce->tx_coalesce_usecs_irq;
6fb70fd1 638 adaptive = coalesce->use_adaptive_rx_coalesce;
8ceee660
BH		 639
640 /* If the channel is shared only allow RX parameters to be set */
641 efx_for_each_tx_queue(tx_queue, efx) {
642 if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
643 tx_usecs) {
644 EFX_ERR(efx, "Channel is shared. "
645 "Only RX coalescing may be set\n");
646 return -EOPNOTSUPP;
647 }
648 }
649
6fb70fd1 650 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
8ceee660
BH		 651 efx_for_each_channel(channel, efx)
652 falcon_set_int_moderation(channel);
653
654 return 0;
655}
656
657static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
658 struct ethtool_pauseparam *pause)
659{
767e468c 660 struct efx_nic *efx = netdev_priv(net_dev);
04cc8cac
BH		 661 enum efx_fc_type wanted_fc;
662 bool reset;
8ceee660 663
04cc8cac
BH		 664 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
665 (pause->tx_pause ? EFX_FC_TX : 0) |
666 (pause->autoneg ? EFX_FC_AUTO : 0));
667
668 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
669 EFX_LOG(efx, "Flow control unsupported: tx ON rx OFF\n");
670 return -EINVAL;
671 }
672
68e7f45e 673 if (!(efx->phy_op->mmds & MDIO_DEVS_AN) &&
04cc8cac
BH		 674 (wanted_fc & EFX_FC_AUTO)) {
675 EFX_LOG(efx, "PHY does not support flow control "
676 "autonegotiation\n");
677 return -EINVAL;
678 }
679
680 /* TX flow control may automatically turn itself off if the
681 * link partner (intermittently) stops responding to pause
682 * frames. There isn't any indication that this has happened,
683 * so the best we do is leave it up to the user to spot this
684 * and fix it be cycling transmit flow control on this end. */
685 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
686 if (EFX_WORKAROUND_11482(efx) && reset) {
daeda630 687 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
04cc8cac 688 /* Recover by resetting the EM block */
eb50c0d6 689 if (efx->link_state.up)
04cc8cac
BH		 690 falcon_drain_tx_fifo(efx);
691 } else {
692 /* Schedule a reset to recover */
693 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
694 }
695 }
696
697 /* Try to push the pause parameters */
698 mutex_lock(&efx->mac_lock);
699
700 efx->wanted_fc = wanted_fc;
3f926da8
BH		 701 if (efx->phy_op->mmds & MDIO_DEVS_AN)
702 mdio45_ethtool_spauseparam_an(&efx->mdio, pause);
04cc8cac
BH		 703 __efx_reconfigure_port(efx);
704
705 mutex_unlock(&efx->mac_lock);
8ceee660 706
177dfcd8 707 return 0;
8ceee660
BH		 708}
709
710static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
711 struct ethtool_pauseparam *pause)
712{
767e468c 713 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 714
04cc8cac
BH		 715 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
716 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
717 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
8ceee660
BH		 718}
719
720
0fc0b732 721const struct ethtool_ops efx_ethtool_ops = {
8ceee660
BH		 722 .get_settings = efx_ethtool_get_settings,
723 .set_settings = efx_ethtool_set_settings,
724 .get_drvinfo = efx_ethtool_get_drvinfo,
725 .nway_reset = efx_ethtool_nway_reset,
726 .get_link = efx_ethtool_get_link,
4a5b504d
BH		 727 .get_eeprom_len = efx_ethtool_get_eeprom_len,
728 .get_eeprom = efx_ethtool_get_eeprom,
729 .set_eeprom = efx_ethtool_set_eeprom,
8ceee660
BH		 730 .get_coalesce = efx_ethtool_get_coalesce,
731 .set_coalesce = efx_ethtool_set_coalesce,
732 .get_pauseparam = efx_ethtool_get_pauseparam,
733 .set_pauseparam = efx_ethtool_set_pauseparam,
734 .get_rx_csum = efx_ethtool_get_rx_csum,
735 .set_rx_csum = efx_ethtool_set_rx_csum,
736 .get_tx_csum = ethtool_op_get_tx_csum,
60ac1065 737 .set_tx_csum = ethtool_op_set_tx_csum,
8ceee660
BH		 738 .get_sg = ethtool_op_get_sg,
739 .set_sg = ethtool_op_set_sg,
b9b39b62 740 .get_tso = ethtool_op_get_tso,
60ac1065 741 .set_tso = ethtool_op_set_tso,
8ceee660
BH		 742 .get_flags = ethtool_op_get_flags,
743 .set_flags = ethtool_op_set_flags,
3594e131 744 .get_sset_count = efx_ethtool_get_sset_count,
3273c2e8 745 .self_test = efx_ethtool_self_test,
8ceee660
BH		 746 .get_strings = efx_ethtool_get_strings,
747 .phys_id = efx_ethtool_phys_id,
8ceee660
BH		 748 .get_ethtool_stats = efx_ethtool_get_stats,
749};
Linux kernel - Deliverables
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