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sfc: Clean up non-volatile memory partitioning
[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"
4a5b504d 20#include "spi.h"
8ceee660
BH		 21#include "mac.h"
22
3273c2e8
BH		 23const char *efx_loopback_mode_names[] = {
24 [LOOPBACK_NONE] = "NONE",
25 [LOOPBACK_MAC] = "MAC",
26 [LOOPBACK_XGMII] = "XGMII",
27 [LOOPBACK_XGXS] = "XGXS",
28 [LOOPBACK_XAUI] = "XAUI",
29 [LOOPBACK_PHY] = "PHY",
30 [LOOPBACK_PHYXS] = "PHY(XS)",
31 [LOOPBACK_PCS] = "PHY(PCS)",
32 [LOOPBACK_PMAPMD] = "PHY(PMAPMD)",
33 [LOOPBACK_NETWORK] = "NETWORK",
34};
35
8ceee660
BH		 36struct ethtool_string {
37 char name[ETH_GSTRING_LEN];
38};
39
40struct efx_ethtool_stat {
41 const char *name;
42 enum {
43 EFX_ETHTOOL_STAT_SOURCE_mac_stats,
44 EFX_ETHTOOL_STAT_SOURCE_nic,
45 EFX_ETHTOOL_STAT_SOURCE_channel
46 } source;
47 unsigned offset;
48 u64(*get_stat) (void *field); /* Reader function */
49};
50
51/* Initialiser for a struct #efx_ethtool_stat with type-checking */
52#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
53 get_stat_function) { \
54 .name = #stat_name, \
55 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
56 .offset = ((((field_type *) 0) == \
57 &((struct efx_##source_name *)0)->field) ? \
58 offsetof(struct efx_##source_name, field) : \
59 offsetof(struct efx_##source_name, field)), \
60 .get_stat = get_stat_function, \
61}
62
63static u64 efx_get_uint_stat(void *field)
64{
65 return *(unsigned int *)field;
66}
67
68static u64 efx_get_ulong_stat(void *field)
69{
70 return *(unsigned long *)field;
71}
72
73static u64 efx_get_u64_stat(void *field)
74{
75 return *(u64 *) field;
76}
77
78static u64 efx_get_atomic_stat(void *field)
79{
80 return atomic_read((atomic_t *) field);
81}
82
83#define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
84 EFX_ETHTOOL_STAT(field, mac_stats, field, \
85 unsigned long, efx_get_ulong_stat)
86
87#define EFX_ETHTOOL_U64_MAC_STAT(field) \
88 EFX_ETHTOOL_STAT(field, mac_stats, field, \
89 u64, efx_get_u64_stat)
90
91#define EFX_ETHTOOL_UINT_NIC_STAT(name) \
92 EFX_ETHTOOL_STAT(name, nic, n_##name, \
93 unsigned int, efx_get_uint_stat)
94
95#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
96 EFX_ETHTOOL_STAT(field, nic, field, \
97 atomic_t, efx_get_atomic_stat)
98
99#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
100 EFX_ETHTOOL_STAT(field, channel, n_##field, \
101 unsigned int, efx_get_uint_stat)
102
103static struct efx_ethtool_stat efx_ethtool_stats[] = {
104 EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
105 EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
106 EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
107 EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
108 EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
109 EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
110 EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
111 EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
112 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
113 EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
114 EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
115 EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
116 EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
117 EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
118 EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
119 EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
120 EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
121 EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
122 EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
123 EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
124 EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
125 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
126 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
127 EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
128 EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
129 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
130 EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
131 EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
132 EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
133 EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
134 EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
135 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
136 EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
137 EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
138 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
139 EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
140 EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
141 EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
142 EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
143 EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
144 EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
145 EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
146 EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
147 EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
148 EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
149 EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
150 EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
151 EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
152 EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
153 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
154 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
155 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
156 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
157 EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
158 EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
159 EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
160 EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
161 EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
162 EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
163 EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
164 EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
165 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
166 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
167 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
168 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
169 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
170};
171
172/* Number of ethtool statistics */
173#define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
174
4a5b504d 175#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
4a5b504d 176
8ceee660
BH		 177/**************************************************************************
178 *
179 * Ethtool operations
180 *
181 **************************************************************************
182 */
183
184/* Identify device by flashing LEDs */
185static int efx_ethtool_phys_id(struct net_device *net_dev, u32 seconds)
186{
767e468c 187 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 188
189 efx->board_info.blink(efx, 1);
190 schedule_timeout_interruptible(seconds * HZ);
191 efx->board_info.blink(efx, 0);
192 return 0;
193}
194
195/* This must be called with rtnl_lock held. */
196int efx_ethtool_get_settings(struct net_device *net_dev,
197 struct ethtool_cmd *ecmd)
198{
767e468c 199 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 200 int rc;
201
202 mutex_lock(&efx->mac_lock);
203 rc = falcon_xmac_get_settings(efx, ecmd);
204 mutex_unlock(&efx->mac_lock);
205
206 return rc;
207}
208
209/* This must be called with rtnl_lock held. */
210int efx_ethtool_set_settings(struct net_device *net_dev,
211 struct ethtool_cmd *ecmd)
212{
767e468c 213 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 214 int rc;
215
216 mutex_lock(&efx->mac_lock);
217 rc = falcon_xmac_set_settings(efx, ecmd);
218 mutex_unlock(&efx->mac_lock);
219 if (!rc)
220 efx_reconfigure_port(efx);
221
222 return rc;
223}
224
225static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
226 struct ethtool_drvinfo *info)
227{
767e468c 228 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 229
230 strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
231 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
232 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
233}
234
3273c2e8
BH		 235/**
236 * efx_fill_test - fill in an individual self-test entry
237 * @test_index: Index of the test
238 * @strings: Ethtool strings, or %NULL
239 * @data: Ethtool test results, or %NULL
240 * @test: Pointer to test result (used only if data != %NULL)
241 * @unit_format: Unit name format (e.g. "channel\%d")
242 * @unit_id: Unit id (e.g. 0 for "channel0")
243 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
244 * @test_id: Test id (e.g. "PHY" for "loopback.PHY.tx_sent")
245 *
246 * Fill in an individual self-test entry.
247 */
248static void efx_fill_test(unsigned int test_index,
249 struct ethtool_string *strings, u64 *data,
250 int *test, const char *unit_format, int unit_id,
251 const char *test_format, const char *test_id)
252{
253 struct ethtool_string unit_str, test_str;
254
255 /* Fill data value, if applicable */
256 if (data)
257 data[test_index] = *test;
258
259 /* Fill string, if applicable */
260 if (strings) {
261 snprintf(unit_str.name, sizeof(unit_str.name),
262 unit_format, unit_id);
263 snprintf(test_str.name, sizeof(test_str.name),
264 test_format, test_id);
265 snprintf(strings[test_index].name,
266 sizeof(strings[test_index].name),
267 "%-9s%-17s", unit_str.name, test_str.name);
268 }
269}
270
271#define EFX_PORT_NAME "port%d", 0
272#define EFX_CHANNEL_NAME(_channel) "channel%d", _channel->channel
273#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
274#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
275#define EFX_LOOPBACK_NAME(_mode, _counter) \
276 "loopback.%s." _counter, LOOPBACK_MODE_NAME(mode)
277
278/**
279 * efx_fill_loopback_test - fill in a block of loopback self-test entries
280 * @efx: Efx NIC
281 * @lb_tests: Efx loopback self-test results structure
282 * @mode: Loopback test mode
283 * @test_index: Starting index of the test
284 * @strings: Ethtool strings, or %NULL
285 * @data: Ethtool test results, or %NULL
286 */
287static int efx_fill_loopback_test(struct efx_nic *efx,
288 struct efx_loopback_self_tests *lb_tests,
289 enum efx_loopback_mode mode,
290 unsigned int test_index,
291 struct ethtool_string *strings, u64 *data)
292{
293 struct efx_tx_queue *tx_queue;
294
295 efx_for_each_tx_queue(tx_queue, efx) {
296 efx_fill_test(test_index++, strings, data,
297 &lb_tests->tx_sent[tx_queue->queue],
298 EFX_TX_QUEUE_NAME(tx_queue),
299 EFX_LOOPBACK_NAME(mode, "tx_sent"));
300 efx_fill_test(test_index++, strings, data,
301 &lb_tests->tx_done[tx_queue->queue],
302 EFX_TX_QUEUE_NAME(tx_queue),
303 EFX_LOOPBACK_NAME(mode, "tx_done"));
304 }
305 efx_fill_test(test_index++, strings, data,
306 &lb_tests->rx_good,
307 EFX_PORT_NAME,
308 EFX_LOOPBACK_NAME(mode, "rx_good"));
309 efx_fill_test(test_index++, strings, data,
310 &lb_tests->rx_bad,
311 EFX_PORT_NAME,
312 EFX_LOOPBACK_NAME(mode, "rx_bad"));
313
314 return test_index;
315}
316
317/**
318 * efx_ethtool_fill_self_tests - get self-test details
319 * @efx: Efx NIC
320 * @tests: Efx self-test results structure, or %NULL
321 * @strings: Ethtool strings, or %NULL
322 * @data: Ethtool test results, or %NULL
323 */
324static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
325 struct efx_self_tests *tests,
326 struct ethtool_string *strings,
327 u64 *data)
328{
329 struct efx_channel *channel;
330 unsigned int n = 0;
331 enum efx_loopback_mode mode;
332
8c8661e4
BH		 333 efx_fill_test(n++, strings, data, &tests->mii,
334 "core", 0, "mii", NULL);
335 efx_fill_test(n++, strings, data, &tests->nvram,
336 "core", 0, "nvram", NULL);
3273c2e8
BH		 337 efx_fill_test(n++, strings, data, &tests->interrupt,
338 "core", 0, "interrupt", NULL);
339
340 /* Event queues */
341 efx_for_each_channel(channel, efx) {
342 efx_fill_test(n++, strings, data,
343 &tests->eventq_dma[channel->channel],
344 EFX_CHANNEL_NAME(channel),
345 "eventq.dma", NULL);
346 efx_fill_test(n++, strings, data,
347 &tests->eventq_int[channel->channel],
348 EFX_CHANNEL_NAME(channel),
349 "eventq.int", NULL);
350 efx_fill_test(n++, strings, data,
351 &tests->eventq_poll[channel->channel],
352 EFX_CHANNEL_NAME(channel),
353 "eventq.poll", NULL);
354 }
355
8c8661e4
BH		 356 efx_fill_test(n++, strings, data, &tests->registers,
357 "core", 0, "registers", NULL);
358 efx_fill_test(n++, strings, data, &tests->phy,
359 EFX_PORT_NAME, "phy", NULL);
3273c2e8
BH		 360
361 /* Loopback tests */
362 efx_fill_test(n++, strings, data, &tests->loopback_speed,
363 EFX_PORT_NAME, "loopback.speed", NULL);
364 efx_fill_test(n++, strings, data, &tests->loopback_full_duplex,
365 EFX_PORT_NAME, "loopback.full_duplex", NULL);
8c8661e4 366 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
3273c2e8
BH		 367 if (!(efx->loopback_modes & (1 << mode)))
368 continue;
369 n = efx_fill_loopback_test(efx,
370 &tests->loopback[mode], mode, n,
371 strings, data);
372 }
373
374 return n;
375}
376
3594e131
BH		 377static int efx_ethtool_get_sset_count(struct net_device *net_dev,
378 int string_set)
8ceee660 379{
3594e131
BH		 380 switch (string_set) {
381 case ETH_SS_STATS:
382 return EFX_ETHTOOL_NUM_STATS;
383 case ETH_SS_TEST:
384 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
385 NULL, NULL, NULL);
386 default:
387 return -EINVAL;
388 }
3273c2e8
BH		 389}
390
8ceee660
BH		 391static void efx_ethtool_get_strings(struct net_device *net_dev,
392 u32 string_set, u8 *strings)
393{
767e468c 394 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 395 struct ethtool_string *ethtool_strings =
396 (struct ethtool_string *)strings;
397 int i;
398
3273c2e8
BH		 399 switch (string_set) {
400 case ETH_SS_STATS:
8ceee660
BH		 401 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
402 strncpy(ethtool_strings[i].name,
403 efx_ethtool_stats[i].name,
404 sizeof(ethtool_strings[i].name));
3273c2e8
BH		 405 break;
406 case ETH_SS_TEST:
407 efx_ethtool_fill_self_tests(efx, NULL,
408 ethtool_strings, NULL);
409 break;
410 default:
411 /* No other string sets */
412 break;
413 }
8ceee660
BH		 414}
415
416static void efx_ethtool_get_stats(struct net_device *net_dev,
417 struct ethtool_stats *stats,
418 u64 *data)
419{
767e468c 420 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 421 struct efx_mac_stats *mac_stats = &efx->mac_stats;
422 struct efx_ethtool_stat *stat;
423 struct efx_channel *channel;
424 int i;
425
426 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
427
428 /* Update MAC and NIC statistics */
429 net_dev->get_stats(net_dev);
430
431 /* Fill detailed statistics buffer */
432 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
433 stat = &efx_ethtool_stats[i];
434 switch (stat->source) {
435 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
436 data[i] = stat->get_stat((void *)mac_stats +
437 stat->offset);
438 break;
439 case EFX_ETHTOOL_STAT_SOURCE_nic:
440 data[i] = stat->get_stat((void *)efx + stat->offset);
441 break;
442 case EFX_ETHTOOL_STAT_SOURCE_channel:
443 data[i] = 0;
444 efx_for_each_channel(channel, efx)
445 data[i] += stat->get_stat((void *)channel +
446 stat->offset);
447 break;
448 }
449 }
450}
451
8ceee660
BH		 452static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
453{
767e468c 454 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 455
456 /* No way to stop the hardware doing the checks; we just
457 * ignore the result.
458 */
dc8cfa55 459 efx->rx_checksum_enabled = !!enable;
8ceee660
BH		 460
461 return 0;
462}
463
464static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
465{
767e468c 466 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 467
468 return efx->rx_checksum_enabled;
469}
470
3273c2e8
BH		 471static void efx_ethtool_self_test(struct net_device *net_dev,
472 struct ethtool_test *test, u64 *data)
473{
767e468c 474 struct efx_nic *efx = netdev_priv(net_dev);
3273c2e8
BH		 475 struct efx_self_tests efx_tests;
476 int offline, already_up;
477 int rc;
478
479 ASSERT_RTNL();
480 if (efx->state != STATE_RUNNING) {
481 rc = -EIO;
482 goto fail1;
483 }
484
485 /* We need rx buffers and interrupts. */
486 already_up = (efx->net_dev->flags & IFF_UP);
487 if (!already_up) {
488 rc = dev_open(efx->net_dev);
489 if (rc) {
490 EFX_ERR(efx, "failed opening device.\n");
491 goto fail2;
492 }
493 }
494
495 memset(&efx_tests, 0, sizeof(efx_tests));
496 offline = (test->flags & ETH_TEST_FL_OFFLINE);
497
498 /* Perform online self tests first */
499 rc = efx_online_test(efx, &efx_tests);
500 if (rc)
501 goto out;
502
503 /* Perform offline tests only if online tests passed */
8c8661e4 504 if (offline)
bc3c90a2
BH		 505 rc = efx_offline_test(efx, &efx_tests,
506 efx->loopback_modes);
3273c2e8
BH		 507
508 out:
509 if (!already_up)
510 dev_close(efx->net_dev);
511
512 EFX_LOG(efx, "%s all %sline self-tests\n",
513 rc == 0 ? "passed" : "failed", offline ? "off" : "on");
514
515 fail2:
516 fail1:
517 /* Fill ethtool results structures */
518 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
519 if (rc)
520 test->flags |= ETH_TEST_FL_FAILED;
521}
522
8ceee660
BH		 523/* Restart autonegotiation */
524static int efx_ethtool_nway_reset(struct net_device *net_dev)
525{
767e468c 526 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 527
528 return mii_nway_restart(&efx->mii);
529}
530
531static u32 efx_ethtool_get_link(struct net_device *net_dev)
532{
767e468c 533 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 534
535 return efx->link_up;
536}
537
4a5b504d
BH		 538static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
539{
540 struct efx_nic *efx = netdev_priv(net_dev);
541 struct efx_spi_device *spi = efx->spi_eeprom;
542
543 if (!spi)
544 return 0;
0a95f563
BH		 545 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
546 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
4a5b504d
BH		 547}
548
549static int efx_ethtool_get_eeprom(struct net_device *net_dev,
550 struct ethtool_eeprom *eeprom, u8 *buf)
551{
552 struct efx_nic *efx = netdev_priv(net_dev);
553 struct efx_spi_device *spi = efx->spi_eeprom;
554 size_t len;
555 int rc;
556
0a95f563 557 rc = falcon_spi_read(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
4a5b504d
BH		 558 eeprom->len, &len, buf);
559 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
560 eeprom->len = len;
561 return rc;
562}
563
564static int efx_ethtool_set_eeprom(struct net_device *net_dev,
565 struct ethtool_eeprom *eeprom, u8 *buf)
566{
567 struct efx_nic *efx = netdev_priv(net_dev);
568 struct efx_spi_device *spi = efx->spi_eeprom;
569 size_t len;
570 int rc;
571
572 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
573 return -EINVAL;
574
0a95f563 575 rc = falcon_spi_write(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
4a5b504d
BH		 576 eeprom->len, &len, buf);
577 eeprom->len = len;
578 return rc;
579}
580
8ceee660
BH		 581static int efx_ethtool_get_coalesce(struct net_device *net_dev,
582 struct ethtool_coalesce *coalesce)
583{
767e468c 584 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 585 struct efx_tx_queue *tx_queue;
586 struct efx_rx_queue *rx_queue;
587 struct efx_channel *channel;
588
589 memset(coalesce, 0, sizeof(*coalesce));
590
591 /* Find lowest IRQ moderation across all used TX queues */
592 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
593 efx_for_each_tx_queue(tx_queue, efx) {
594 channel = tx_queue->channel;
595 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
596 if (channel->used_flags != EFX_USED_BY_RX_TX)
597 coalesce->tx_coalesce_usecs_irq =
598 channel->irq_moderation;
599 else
600 coalesce->tx_coalesce_usecs_irq = 0;
601 }
602 }
603
604 /* Find lowest IRQ moderation across all used RX queues */
605 coalesce->rx_coalesce_usecs_irq = ~((u32) 0);
606 efx_for_each_rx_queue(rx_queue, efx) {
607 channel = rx_queue->channel;
608 if (channel->irq_moderation < coalesce->rx_coalesce_usecs_irq)
609 coalesce->rx_coalesce_usecs_irq =
610 channel->irq_moderation;
611 }
612
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;
625 unsigned tx_usecs, rx_usecs;
626
627 if (coalesce->use_adaptive_rx_coalesce ||
628 coalesce->use_adaptive_tx_coalesce)
629 return -EOPNOTSUPP;
630
631 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
632 EFX_ERR(efx, "invalid coalescing setting. "
633 "Only rx/tx_coalesce_usecs_irq are supported\n");
634 return -EOPNOTSUPP;
635 }
636
637 rx_usecs = coalesce->rx_coalesce_usecs_irq;
638 tx_usecs = coalesce->tx_coalesce_usecs_irq;
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
650 efx_init_irq_moderation(efx, tx_usecs, rx_usecs);
651
652 /* Reset channel to pick up new moderation value. Note that
653 * this may change the value of the irq_moderation field
654 * (e.g. to allow for hardware timer granularity).
655 */
656 efx_for_each_channel(channel, efx)
657 falcon_set_int_moderation(channel);
658
659 return 0;
660}
661
662static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
663 struct ethtool_pauseparam *pause)
664{
767e468c 665 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 666 enum efx_fc_type flow_control = efx->flow_control;
667 int rc;
668
669 flow_control &= ~(EFX_FC_RX | EFX_FC_TX | EFX_FC_AUTO);
670 flow_control |= pause->rx_pause ? EFX_FC_RX : 0;
671 flow_control |= pause->tx_pause ? EFX_FC_TX : 0;
672 flow_control |= pause->autoneg ? EFX_FC_AUTO : 0;
673
674 /* Try to push the pause parameters */
675 mutex_lock(&efx->mac_lock);
676 rc = falcon_xmac_set_pause(efx, flow_control);
677 mutex_unlock(&efx->mac_lock);
678
679 if (!rc)
680 efx_reconfigure_port(efx);
681
682 return rc;
683}
684
685static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
686 struct ethtool_pauseparam *pause)
687{
767e468c 688 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 689
dc8cfa55
BH		 690 pause->rx_pause = !!(efx->flow_control & EFX_FC_RX);
691 pause->tx_pause = !!(efx->flow_control & EFX_FC_TX);
692 pause->autoneg = !!(efx->flow_control & EFX_FC_AUTO);
8ceee660
BH		 693}
694
695
696struct ethtool_ops efx_ethtool_ops = {
697 .get_settings = efx_ethtool_get_settings,
698 .set_settings = efx_ethtool_set_settings,
699 .get_drvinfo = efx_ethtool_get_drvinfo,
700 .nway_reset = efx_ethtool_nway_reset,
701 .get_link = efx_ethtool_get_link,
4a5b504d
BH		 702 .get_eeprom_len = efx_ethtool_get_eeprom_len,
703 .get_eeprom = efx_ethtool_get_eeprom,
704 .set_eeprom = efx_ethtool_set_eeprom,
8ceee660
BH		 705 .get_coalesce = efx_ethtool_get_coalesce,
706 .set_coalesce = efx_ethtool_set_coalesce,
707 .get_pauseparam = efx_ethtool_get_pauseparam,
708 .set_pauseparam = efx_ethtool_set_pauseparam,
709 .get_rx_csum = efx_ethtool_get_rx_csum,
710 .set_rx_csum = efx_ethtool_set_rx_csum,
711 .get_tx_csum = ethtool_op_get_tx_csum,
60ac1065 712 .set_tx_csum = ethtool_op_set_tx_csum,
8ceee660
BH		 713 .get_sg = ethtool_op_get_sg,
714 .set_sg = ethtool_op_set_sg,
b9b39b62 715 .get_tso = ethtool_op_get_tso,
60ac1065 716 .set_tso = ethtool_op_set_tso,
8ceee660
BH		 717 .get_flags = ethtool_op_get_flags,
718 .set_flags = ethtool_op_set_flags,
3594e131 719 .get_sset_count = efx_ethtool_get_sset_count,
3273c2e8 720 .self_test = efx_ethtool_self_test,
8ceee660
BH		 721 .get_strings = efx_ethtool_get_strings,
722 .phys_id = efx_ethtool_phys_id,
8ceee660
BH		 723 .get_ethtool_stats = efx_ethtool_get_stats,
724};
Linux kernel - Deliverables
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