tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2009 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"
15#include "workarounds.h"
16#include "selftest.h"
17#include "efx.h"
18#include "filter.h"
19#include "nic.h"
20#include "spi.h"
21#include "mdio_10g.h"
22
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),
156 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
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
163#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
164
165/**************************************************************************
166 *
167 * Ethtool operations
168 *
169 **************************************************************************
170 */
171
172/* Identify device by flashing LEDs */
173static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
174{
175 struct efx_nic *efx = netdev_priv(net_dev);
176
177 do {
178 efx->type->set_id_led(efx, EFX_LED_ON);
179 schedule_timeout_interruptible(HZ / 2);
180
181 efx->type->set_id_led(efx, EFX_LED_OFF);
182 schedule_timeout_interruptible(HZ / 2);
183 } while (!signal_pending(current) && --count != 0);
184
185 efx->type->set_id_led(efx, EFX_LED_DEFAULT);
186 return 0;
187}
188
189/* This must be called with rtnl_lock held. */
190static int efx_ethtool_get_settings(struct net_device *net_dev,
191 struct ethtool_cmd *ecmd)
192{
193 struct efx_nic *efx = netdev_priv(net_dev);
194 struct efx_link_state *link_state = &efx->link_state;
195
196 mutex_lock(&efx->mac_lock);
197 efx->phy_op->get_settings(efx, ecmd);
198 mutex_unlock(&efx->mac_lock);
199
200 /* GMAC does not support 1000Mbps HD */
201 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
202 /* Both MACs support pause frames (bidirectional and respond-only) */
203 ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
204
205 if (LOOPBACK_INTERNAL(efx)) {
206 ecmd->speed = link_state->speed;
207 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
208 }
209
210 return 0;
211}
212
213/* This must be called with rtnl_lock held. */
214static int efx_ethtool_set_settings(struct net_device *net_dev,
215 struct ethtool_cmd *ecmd)
216{
217 struct efx_nic *efx = netdev_priv(net_dev);
218 int rc;
219
220 /* GMAC does not support 1000Mbps HD */
221 if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
222 netif_dbg(efx, drv, efx->net_dev,
223 "rejecting unsupported 1000Mbps HD setting\n");
224 return -EINVAL;
225 }
226
227 mutex_lock(&efx->mac_lock);
228 rc = efx->phy_op->set_settings(efx, ecmd);
229 mutex_unlock(&efx->mac_lock);
230 return rc;
231}
232
233static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
234 struct ethtool_drvinfo *info)
235{
236 struct efx_nic *efx = netdev_priv(net_dev);
237
238 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
239 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
240 if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
241 siena_print_fwver(efx, info->fw_version,
242 sizeof(info->fw_version));
243 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
244}
245
246static int efx_ethtool_get_regs_len(struct net_device *net_dev)
247{
248 return efx_nic_get_regs_len(netdev_priv(net_dev));
249}
250
251static void efx_ethtool_get_regs(struct net_device *net_dev,
252 struct ethtool_regs *regs, void *buf)
253{
254 struct efx_nic *efx = netdev_priv(net_dev);
255
256 regs->version = efx->type->revision;
257 efx_nic_get_regs(efx, buf);
258}
259
260static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
261{
262 struct efx_nic *efx = netdev_priv(net_dev);
263 return efx->msg_enable;
264}
265
266static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
267{
268 struct efx_nic *efx = netdev_priv(net_dev);
269 efx->msg_enable = msg_enable;
270}
271
272/**
273 * efx_fill_test - fill in an individual self-test entry
274 * @test_index: Index of the test
275 * @strings: Ethtool strings, or %NULL
276 * @data: Ethtool test results, or %NULL
277 * @test: Pointer to test result (used only if data != %NULL)
278 * @unit_format: Unit name format (e.g. "chan\%d")
279 * @unit_id: Unit id (e.g. 0 for "chan0")
280 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
281 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
282 *
283 * Fill in an individual self-test entry.
284 */
285static void efx_fill_test(unsigned int test_index,
286 struct ethtool_string *strings, u64 *data,
287 int *test, const char *unit_format, int unit_id,
288 const char *test_format, const char *test_id)
289{
290 struct ethtool_string unit_str, test_str;
291
292 /* Fill data value, if applicable */
293 if (data)
294 data[test_index] = *test;
295
296 /* Fill string, if applicable */
297 if (strings) {
298 if (strchr(unit_format, '%'))
299 snprintf(unit_str.name, sizeof(unit_str.name),
300 unit_format, unit_id);
301 else
302 strcpy(unit_str.name, unit_format);
303 snprintf(test_str.name, sizeof(test_str.name),
304 test_format, test_id);
305 snprintf(strings[test_index].name,
306 sizeof(strings[test_index].name),
307 "%-6s %-24s", unit_str.name, test_str.name);
308 }
309}
310
311#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
312#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
313#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
314#define EFX_LOOPBACK_NAME(_mode, _counter) \
315 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
316
317/**
318 * efx_fill_loopback_test - fill in a block of loopback self-test entries
319 * @efx: Efx NIC
320 * @lb_tests: Efx loopback self-test results structure
321 * @mode: Loopback test mode
322 * @test_index: Starting index of the test
323 * @strings: Ethtool strings, or %NULL
324 * @data: Ethtool test results, or %NULL
325 */
326static int efx_fill_loopback_test(struct efx_nic *efx,
327 struct efx_loopback_self_tests *lb_tests,
328 enum efx_loopback_mode mode,
329 unsigned int test_index,
330 struct ethtool_string *strings, u64 *data)
331{
332 struct efx_channel *channel = efx_get_channel(efx, 0);
333 struct efx_tx_queue *tx_queue;
334
335 efx_for_each_channel_tx_queue(tx_queue, channel) {
336 efx_fill_test(test_index++, strings, data,
337 &lb_tests->tx_sent[tx_queue->queue],
338 EFX_TX_QUEUE_NAME(tx_queue),
339 EFX_LOOPBACK_NAME(mode, "tx_sent"));
340 efx_fill_test(test_index++, strings, data,
341 &lb_tests->tx_done[tx_queue->queue],
342 EFX_TX_QUEUE_NAME(tx_queue),
343 EFX_LOOPBACK_NAME(mode, "tx_done"));
344 }
345 efx_fill_test(test_index++, strings, data,
346 &lb_tests->rx_good,
347 "rx", 0,
348 EFX_LOOPBACK_NAME(mode, "rx_good"));
349 efx_fill_test(test_index++, strings, data,
350 &lb_tests->rx_bad,
351 "rx", 0,
352 EFX_LOOPBACK_NAME(mode, "rx_bad"));
353
354 return test_index;
355}
356
357/**
358 * efx_ethtool_fill_self_tests - get self-test details
359 * @efx: Efx NIC
360 * @tests: Efx self-test results structure, or %NULL
361 * @strings: Ethtool strings, or %NULL
362 * @data: Ethtool test results, or %NULL
363 */
364static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
365 struct efx_self_tests *tests,
366 struct ethtool_string *strings,
367 u64 *data)
368{
369 struct efx_channel *channel;
370 unsigned int n = 0, i;
371 enum efx_loopback_mode mode;
372
373 efx_fill_test(n++, strings, data, &tests->phy_alive,
374 "phy", 0, "alive", NULL);
375 efx_fill_test(n++, strings, data, &tests->nvram,
376 "core", 0, "nvram", NULL);
377 efx_fill_test(n++, strings, data, &tests->interrupt,
378 "core", 0, "interrupt", NULL);
379
380 /* Event queues */
381 efx_for_each_channel(channel, efx) {
382 efx_fill_test(n++, strings, data,
383 &tests->eventq_dma[channel->channel],
384 EFX_CHANNEL_NAME(channel),
385 "eventq.dma", NULL);
386 efx_fill_test(n++, strings, data,
387 &tests->eventq_int[channel->channel],
388 EFX_CHANNEL_NAME(channel),
389 "eventq.int", NULL);
390 efx_fill_test(n++, strings, data,
391 &tests->eventq_poll[channel->channel],
392 EFX_CHANNEL_NAME(channel),
393 "eventq.poll", NULL);
394 }
395
396 efx_fill_test(n++, strings, data, &tests->registers,
397 "core", 0, "registers", NULL);
398
399 if (efx->phy_op->run_tests != NULL) {
400 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
401
402 for (i = 0; true; ++i) {
403 const char *name;
404
405 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
406 name = efx->phy_op->test_name(efx, i);
407 if (name == NULL)
408 break;
409
410 efx_fill_test(n++, strings, data, &tests->phy_ext[i],
411 "phy", 0, name, NULL);
412 }
413 }
414
415 /* Loopback tests */
416 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
417 if (!(efx->loopback_modes & (1 << mode)))
418 continue;
419 n = efx_fill_loopback_test(efx,
420 &tests->loopback[mode], mode, n,
421 strings, data);
422 }
423
424 return n;
425}
426
427static int efx_ethtool_get_sset_count(struct net_device *net_dev,
428 int string_set)
429{
430 switch (string_set) {
431 case ETH_SS_STATS:
432 return EFX_ETHTOOL_NUM_STATS;
433 case ETH_SS_TEST:
434 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
435 NULL, NULL, NULL);
436 default:
437 return -EINVAL;
438 }
439}
440
441static void efx_ethtool_get_strings(struct net_device *net_dev,
442 u32 string_set, u8 *strings)
443{
444 struct efx_nic *efx = netdev_priv(net_dev);
445 struct ethtool_string *ethtool_strings =
446 (struct ethtool_string *)strings;
447 int i;
448
449 switch (string_set) {
450 case ETH_SS_STATS:
451 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
452 strncpy(ethtool_strings[i].name,
453 efx_ethtool_stats[i].name,
454 sizeof(ethtool_strings[i].name));
455 break;
456 case ETH_SS_TEST:
457 efx_ethtool_fill_self_tests(efx, NULL,
458 ethtool_strings, NULL);
459 break;
460 default:
461 /* No other string sets */
462 break;
463 }
464}
465
466static void efx_ethtool_get_stats(struct net_device *net_dev,
467 struct ethtool_stats *stats,
468 u64 *data)
469{
470 struct efx_nic *efx = netdev_priv(net_dev);
471 struct efx_mac_stats *mac_stats = &efx->mac_stats;
472 struct efx_ethtool_stat *stat;
473 struct efx_channel *channel;
474 struct rtnl_link_stats64 temp;
475 int i;
476
477 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
478
479 /* Update MAC and NIC statistics */
480 dev_get_stats(net_dev, &temp);
481
482 /* Fill detailed statistics buffer */
483 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
484 stat = &efx_ethtool_stats[i];
485 switch (stat->source) {
486 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
487 data[i] = stat->get_stat((void *)mac_stats +
488 stat->offset);
489 break;
490 case EFX_ETHTOOL_STAT_SOURCE_nic:
491 data[i] = stat->get_stat((void *)efx + stat->offset);
492 break;
493 case EFX_ETHTOOL_STAT_SOURCE_channel:
494 data[i] = 0;
495 efx_for_each_channel(channel, efx)
496 data[i] += stat->get_stat((void *)channel +
497 stat->offset);
498 break;
499 }
500 }
501}
502
503static int efx_ethtool_set_tso(struct net_device *net_dev, u32 enable)
504{
505 struct efx_nic *efx __attribute__ ((unused)) = netdev_priv(net_dev);
506 unsigned long features;
507
508 features = NETIF_F_TSO;
509 if (efx->type->offload_features & NETIF_F_V6_CSUM)
510 features |= NETIF_F_TSO6;
511
512 if (enable)
513 net_dev->features |= features;
514 else
515 net_dev->features &= ~features;
516
517 return 0;
518}
519
520static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
521{
522 struct efx_nic *efx = netdev_priv(net_dev);
523 unsigned long features = efx->type->offload_features & NETIF_F_ALL_CSUM;
524
525 if (enable)
526 net_dev->features |= features;
527 else
528 net_dev->features &= ~features;
529
530 return 0;
531}
532
533static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
534{
535 struct efx_nic *efx = netdev_priv(net_dev);
536
537 /* No way to stop the hardware doing the checks; we just
538 * ignore the result.
539 */
540 efx->rx_checksum_enabled = !!enable;
541
542 return 0;
543}
544
545static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
546{
547 struct efx_nic *efx = netdev_priv(net_dev);
548
549 return efx->rx_checksum_enabled;
550}
551
552static int efx_ethtool_set_flags(struct net_device *net_dev, u32 data)
553{
554 struct efx_nic *efx = netdev_priv(net_dev);
555 u32 supported = (efx->type->offload_features &
556 (ETH_FLAG_RXHASH | ETH_FLAG_NTUPLE));
557 int rc;
558
559 rc = ethtool_op_set_flags(net_dev, data, supported);
560 if (rc)
561 return rc;
562
563 if (!(data & ETH_FLAG_NTUPLE)) {
564 efx_filter_table_clear(efx, EFX_FILTER_TABLE_RX_IP,
565 EFX_FILTER_PRI_MANUAL);
566 efx_filter_table_clear(efx, EFX_FILTER_TABLE_RX_MAC,
567 EFX_FILTER_PRI_MANUAL);
568 }
569
570 return 0;
571}
572
573static void efx_ethtool_self_test(struct net_device *net_dev,
574 struct ethtool_test *test, u64 *data)
575{
576 struct efx_nic *efx = netdev_priv(net_dev);
577 struct efx_self_tests efx_tests;
578 int already_up;
579 int rc;
580
581 ASSERT_RTNL();
582 if (efx->state != STATE_RUNNING) {
583 rc = -EIO;
584 goto fail1;
585 }
586
587 /* We need rx buffers and interrupts. */
588 already_up = (efx->net_dev->flags & IFF_UP);
589 if (!already_up) {
590 rc = dev_open(efx->net_dev);
591 if (rc) {
592 netif_err(efx, drv, efx->net_dev,
593 "failed opening device.\n");
594 goto fail2;
595 }
596 }
597
598 memset(&efx_tests, 0, sizeof(efx_tests));
599
600 rc = efx_selftest(efx, &efx_tests, test->flags);
601
602 if (!already_up)
603 dev_close(efx->net_dev);
604
605 netif_dbg(efx, drv, efx->net_dev, "%s %sline self-tests\n",
606 rc == 0 ? "passed" : "failed",
607 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
608
609 fail2:
610 fail1:
611 /* Fill ethtool results structures */
612 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
613 if (rc)
614 test->flags |= ETH_TEST_FL_FAILED;
615}
616
617/* Restart autonegotiation */
618static int efx_ethtool_nway_reset(struct net_device *net_dev)
619{
620 struct efx_nic *efx = netdev_priv(net_dev);
621
622 return mdio45_nway_restart(&efx->mdio);
623}
624
625static u32 efx_ethtool_get_link(struct net_device *net_dev)
626{
627 struct efx_nic *efx = netdev_priv(net_dev);
628
629 return efx->link_state.up;
630}
631
632static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
633{
634 struct efx_nic *efx = netdev_priv(net_dev);
635 struct efx_spi_device *spi = efx->spi_eeprom;
636
637 if (!spi)
638 return 0;
639 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
640 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
641}
642
643static int efx_ethtool_get_eeprom(struct net_device *net_dev,
644 struct ethtool_eeprom *eeprom, u8 *buf)
645{
646 struct efx_nic *efx = netdev_priv(net_dev);
647 struct efx_spi_device *spi = efx->spi_eeprom;
648 size_t len;
649 int rc;
650
651 rc = mutex_lock_interruptible(&efx->spi_lock);
652 if (rc)
653 return rc;
654 rc = falcon_spi_read(efx, spi,
655 eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
656 eeprom->len, &len, buf);
657 mutex_unlock(&efx->spi_lock);
658
659 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
660 eeprom->len = len;
661 return rc;
662}
663
664static int efx_ethtool_set_eeprom(struct net_device *net_dev,
665 struct ethtool_eeprom *eeprom, u8 *buf)
666{
667 struct efx_nic *efx = netdev_priv(net_dev);
668 struct efx_spi_device *spi = efx->spi_eeprom;
669 size_t len;
670 int rc;
671
672 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
673 return -EINVAL;
674
675 rc = mutex_lock_interruptible(&efx->spi_lock);
676 if (rc)
677 return rc;
678 rc = falcon_spi_write(efx, spi,
679 eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
680 eeprom->len, &len, buf);
681 mutex_unlock(&efx->spi_lock);
682
683 eeprom->len = len;
684 return rc;
685}
686
687static int efx_ethtool_get_coalesce(struct net_device *net_dev,
688 struct ethtool_coalesce *coalesce)
689{
690 struct efx_nic *efx = netdev_priv(net_dev);
691 struct efx_channel *channel;
692
693 memset(coalesce, 0, sizeof(*coalesce));
694
695 /* Find lowest IRQ moderation across all used TX queues */
696 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
697 efx_for_each_channel(channel, efx) {
698 if (!efx_channel_get_tx_queue(channel, 0))
699 continue;
700 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
701 if (channel->channel < efx->n_rx_channels)
702 coalesce->tx_coalesce_usecs_irq =
703 channel->irq_moderation;
704 else
705 coalesce->tx_coalesce_usecs_irq = 0;
706 }
707 }
708
709 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
710 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
711
712 coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
713 coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
714
715 return 0;
716}
717
718/* Set coalescing parameters
719 * The difficulties occur for shared channels
720 */
721static int efx_ethtool_set_coalesce(struct net_device *net_dev,
722 struct ethtool_coalesce *coalesce)
723{
724 struct efx_nic *efx = netdev_priv(net_dev);
725 struct efx_channel *channel;
726 unsigned tx_usecs, rx_usecs, adaptive;
727
728 if (coalesce->use_adaptive_tx_coalesce)
729 return -EOPNOTSUPP;
730
731 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
732 netif_err(efx, drv, efx->net_dev, "invalid coalescing setting. "
733 "Only rx/tx_coalesce_usecs_irq are supported\n");
734 return -EOPNOTSUPP;
735 }
736
737 rx_usecs = coalesce->rx_coalesce_usecs_irq;
738 tx_usecs = coalesce->tx_coalesce_usecs_irq;
739 adaptive = coalesce->use_adaptive_rx_coalesce;
740
741 /* If the channel is shared only allow RX parameters to be set */
742 efx_for_each_channel(channel, efx) {
743 if (efx_channel_get_rx_queue(channel) &&
744 efx_channel_get_tx_queue(channel, 0) &&
745 tx_usecs) {
746 netif_err(efx, drv, efx->net_dev, "Channel is shared. "
747 "Only RX coalescing may be set\n");
748 return -EOPNOTSUPP;
749 }
750 }
751
752 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
753 efx_for_each_channel(channel, efx)
754 efx->type->push_irq_moderation(channel);
755
756 return 0;
757}
758
759static void efx_ethtool_get_ringparam(struct net_device *net_dev,
760 struct ethtool_ringparam *ring)
761{
762 struct efx_nic *efx = netdev_priv(net_dev);
763
764 ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
765 ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
766 ring->rx_mini_max_pending = 0;
767 ring->rx_jumbo_max_pending = 0;
768 ring->rx_pending = efx->rxq_entries;
769 ring->tx_pending = efx->txq_entries;
770 ring->rx_mini_pending = 0;
771 ring->rx_jumbo_pending = 0;
772}
773
774static int efx_ethtool_set_ringparam(struct net_device *net_dev,
775 struct ethtool_ringparam *ring)
776{
777 struct efx_nic *efx = netdev_priv(net_dev);
778
779 if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
780 ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
781 ring->tx_pending > EFX_MAX_DMAQ_SIZE)
782 return -EINVAL;
783
784 if (ring->rx_pending < EFX_MIN_RING_SIZE ||
785 ring->tx_pending < EFX_MIN_RING_SIZE) {
786 netif_err(efx, drv, efx->net_dev,
787 "TX and RX queues cannot be smaller than %ld\n",
788 EFX_MIN_RING_SIZE);
789 return -EINVAL;
790 }
791
792 return efx_realloc_channels(efx, ring->rx_pending, ring->tx_pending);
793}
794
795static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
796 struct ethtool_pauseparam *pause)
797{
798 struct efx_nic *efx = netdev_priv(net_dev);
799 enum efx_fc_type wanted_fc, old_fc;
800 u32 old_adv;
801 bool reset;
802 int rc = 0;
803
804 mutex_lock(&efx->mac_lock);
805
806 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
807 (pause->tx_pause ? EFX_FC_TX : 0) |
808 (pause->autoneg ? EFX_FC_AUTO : 0));
809
810 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
811 netif_dbg(efx, drv, efx->net_dev,
812 "Flow control unsupported: tx ON rx OFF\n");
813 rc = -EINVAL;
814 goto out;
815 }
816
817 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
818 netif_dbg(efx, drv, efx->net_dev,
819 "Autonegotiation is disabled\n");
820 rc = -EINVAL;
821 goto out;
822 }
823
824 /* TX flow control may automatically turn itself off if the
825 * link partner (intermittently) stops responding to pause
826 * frames. There isn't any indication that this has happened,
827 * so the best we do is leave it up to the user to spot this
828 * and fix it be cycling transmit flow control on this end. */
829 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
830 if (EFX_WORKAROUND_11482(efx) && reset) {
831 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
832 /* Recover by resetting the EM block */
833 falcon_stop_nic_stats(efx);
834 falcon_drain_tx_fifo(efx);
835 efx->mac_op->reconfigure(efx);
836 falcon_start_nic_stats(efx);
837 } else {
838 /* Schedule a reset to recover */
839 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
840 }
841 }
842
843 old_adv = efx->link_advertising;
844 old_fc = efx->wanted_fc;
845 efx_link_set_wanted_fc(efx, wanted_fc);
846 if (efx->link_advertising != old_adv ||
847 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
848 rc = efx->phy_op->reconfigure(efx);
849 if (rc) {
850 netif_err(efx, drv, efx->net_dev,
851 "Unable to advertise requested flow "
852 "control setting\n");
853 goto out;
854 }
855 }
856
857 /* Reconfigure the MAC. The PHY *may* generate a link state change event
858 * if the user just changed the advertised capabilities, but there's no
859 * harm doing this twice */
860 efx->mac_op->reconfigure(efx);
861
862out:
863 mutex_unlock(&efx->mac_lock);
864
865 return rc;
866}
867
868static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
869 struct ethtool_pauseparam *pause)
870{
871 struct efx_nic *efx = netdev_priv(net_dev);
872
873 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
874 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
875 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
876}
877
878
879static void efx_ethtool_get_wol(struct net_device *net_dev,
880 struct ethtool_wolinfo *wol)
881{
882 struct efx_nic *efx = netdev_priv(net_dev);
883 return efx->type->get_wol(efx, wol);
884}
885
886
887static int efx_ethtool_set_wol(struct net_device *net_dev,
888 struct ethtool_wolinfo *wol)
889{
890 struct efx_nic *efx = netdev_priv(net_dev);
891 return efx->type->set_wol(efx, wol->wolopts);
892}
893
894static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
895{
896 struct efx_nic *efx = netdev_priv(net_dev);
897 enum reset_type method;
898 enum {
899 ETH_RESET_EFX_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
900 ETH_RESET_OFFLOAD | ETH_RESET_MAC)
901 };
902
903 /* Check for minimal reset flags */
904 if ((*flags & ETH_RESET_EFX_INVISIBLE) != ETH_RESET_EFX_INVISIBLE)
905 return -EINVAL;
906 *flags ^= ETH_RESET_EFX_INVISIBLE;
907 method = RESET_TYPE_INVISIBLE;
908
909 if (*flags & ETH_RESET_PHY) {
910 *flags ^= ETH_RESET_PHY;
911 method = RESET_TYPE_ALL;
912 }
913
914 if ((*flags & efx->type->reset_world_flags) ==
915 efx->type->reset_world_flags) {
916 *flags ^= efx->type->reset_world_flags;
917 method = RESET_TYPE_WORLD;
918 }
919
920 return efx_reset(efx, method);
921}
922
923static int
924efx_ethtool_get_rxnfc(struct net_device *net_dev,
925 struct ethtool_rxnfc *info, void *rules __always_unused)
926{
927 struct efx_nic *efx = netdev_priv(net_dev);
928
929 switch (info->cmd) {
930 case ETHTOOL_GRXRINGS:
931 info->data = efx->n_rx_channels;
932 return 0;
933
934 case ETHTOOL_GRXFH: {
935 unsigned min_revision = 0;
936
937 info->data = 0;
938 switch (info->flow_type) {
939 case TCP_V4_FLOW:
940 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
941 /* fall through */
942 case UDP_V4_FLOW:
943 case SCTP_V4_FLOW:
944 case AH_ESP_V4_FLOW:
945 case IPV4_FLOW:
946 info->data |= RXH_IP_SRC | RXH_IP_DST;
947 min_revision = EFX_REV_FALCON_B0;
948 break;
949 case TCP_V6_FLOW:
950 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
951 /* fall through */
952 case UDP_V6_FLOW:
953 case SCTP_V6_FLOW:
954 case AH_ESP_V6_FLOW:
955 case IPV6_FLOW:
956 info->data |= RXH_IP_SRC | RXH_IP_DST;
957 min_revision = EFX_REV_SIENA_A0;
958 break;
959 default:
960 break;
961 }
962 if (efx_nic_rev(efx) < min_revision)
963 info->data = 0;
964 return 0;
965 }
966
967 default:
968 return -EOPNOTSUPP;
969 }
970}
971
972static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
973 struct ethtool_rx_ntuple *ntuple)
974{
975 struct efx_nic *efx = netdev_priv(net_dev);
976 struct ethtool_tcpip4_spec *ip_entry = &ntuple->fs.h_u.tcp_ip4_spec;
977 struct ethtool_tcpip4_spec *ip_mask = &ntuple->fs.m_u.tcp_ip4_spec;
978 struct ethhdr *mac_entry = &ntuple->fs.h_u.ether_spec;
979 struct ethhdr *mac_mask = &ntuple->fs.m_u.ether_spec;
980 struct efx_filter_spec filter;
981
982 /* Range-check action */
983 if (ntuple->fs.action < ETHTOOL_RXNTUPLE_ACTION_CLEAR ||
984 ntuple->fs.action >= (s32)efx->n_rx_channels)
985 return -EINVAL;
986
987 if (~ntuple->fs.data_mask)
988 return -EINVAL;
989
990 switch (ntuple->fs.flow_type) {
991 case TCP_V4_FLOW:
992 case UDP_V4_FLOW:
993 /* Must match all of destination, */
994 if (ip_mask->ip4dst | ip_mask->pdst)
995 return -EINVAL;
996 /* all or none of source, */
997 if ((ip_mask->ip4src | ip_mask->psrc) &&
998 ((__force u32)~ip_mask->ip4src |
999 (__force u16)~ip_mask->psrc))
1000 return -EINVAL;
1001 /* and nothing else */
1002 if ((u8)~ip_mask->tos | (u16)~ntuple->fs.vlan_tag_mask)
1003 return -EINVAL;
1004 break;
1005 case ETHER_FLOW:
1006 /* Must match all of destination, */
1007 if (!is_zero_ether_addr(mac_mask->h_dest))
1008 return -EINVAL;
1009 /* all or none of VID, */
1010 if (ntuple->fs.vlan_tag_mask != 0xf000 &&
1011 ntuple->fs.vlan_tag_mask != 0xffff)
1012 return -EINVAL;
1013 /* and nothing else */
1014 if (!is_broadcast_ether_addr(mac_mask->h_source) ||
1015 mac_mask->h_proto != htons(0xffff))
1016 return -EINVAL;
1017 break;
1018 default:
1019 return -EINVAL;
1020 }
1021
1022 filter.priority = EFX_FILTER_PRI_MANUAL;
1023 filter.flags = 0;
1024
1025 switch (ntuple->fs.flow_type) {
1026 case TCP_V4_FLOW:
1027 if (!ip_mask->ip4src)
1028 efx_filter_set_rx_tcp_full(&filter,
1029 htonl(ip_entry->ip4src),
1030 htons(ip_entry->psrc),
1031 htonl(ip_entry->ip4dst),
1032 htons(ip_entry->pdst));
1033 else
1034 efx_filter_set_rx_tcp_wild(&filter,
1035 htonl(ip_entry->ip4dst),
1036 htons(ip_entry->pdst));
1037 break;
1038 case UDP_V4_FLOW:
1039 if (!ip_mask->ip4src)
1040 efx_filter_set_rx_udp_full(&filter,
1041 htonl(ip_entry->ip4src),
1042 htons(ip_entry->psrc),
1043 htonl(ip_entry->ip4dst),
1044 htons(ip_entry->pdst));
1045 else
1046 efx_filter_set_rx_udp_wild(&filter,
1047 htonl(ip_entry->ip4dst),
1048 htons(ip_entry->pdst));
1049 break;
1050 case ETHER_FLOW:
1051 if (ntuple->fs.vlan_tag_mask == 0xf000)
1052 efx_filter_set_rx_mac_full(&filter,
1053 ntuple->fs.vlan_tag & 0xfff,
1054 mac_entry->h_dest);
1055 else
1056 efx_filter_set_rx_mac_wild(&filter, mac_entry->h_dest);
1057 break;
1058 }
1059
1060 if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_CLEAR) {
1061 return efx_filter_remove_filter(efx, &filter);
1062 } else {
1063 if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP)
1064 filter.dmaq_id = 0xfff;
1065 else
1066 filter.dmaq_id = ntuple->fs.action;
1067 return efx_filter_insert_filter(efx, &filter, true);
1068 }
1069}
1070
1071static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
1072 struct ethtool_rxfh_indir *indir)
1073{
1074 struct efx_nic *efx = netdev_priv(net_dev);
1075 size_t copy_size =
1076 min_t(size_t, indir->size, ARRAY_SIZE(efx->rx_indir_table));
1077
1078 if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
1079 return -EOPNOTSUPP;
1080
1081 indir->size = ARRAY_SIZE(efx->rx_indir_table);
1082 memcpy(indir->ring_index, efx->rx_indir_table,
1083 copy_size * sizeof(indir->ring_index[0]));
1084 return 0;
1085}
1086
1087static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
1088 const struct ethtool_rxfh_indir *indir)
1089{
1090 struct efx_nic *efx = netdev_priv(net_dev);
1091 size_t i;
1092
1093 if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
1094 return -EOPNOTSUPP;
1095
1096 /* Validate size and indices */
1097 if (indir->size != ARRAY_SIZE(efx->rx_indir_table))
1098 return -EINVAL;
1099 for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
1100 if (indir->ring_index[i] >= efx->n_rx_channels)
1101 return -EINVAL;
1102
1103 memcpy(efx->rx_indir_table, indir->ring_index,
1104 sizeof(efx->rx_indir_table));
1105 efx_nic_push_rx_indir_table(efx);
1106 return 0;
1107}
1108
1109const struct ethtool_ops efx_ethtool_ops = {
1110 .get_settings = efx_ethtool_get_settings,
1111 .set_settings = efx_ethtool_set_settings,
1112 .get_drvinfo = efx_ethtool_get_drvinfo,
1113 .get_regs_len = efx_ethtool_get_regs_len,
1114 .get_regs = efx_ethtool_get_regs,
1115 .get_msglevel = efx_ethtool_get_msglevel,
1116 .set_msglevel = efx_ethtool_set_msglevel,
1117 .nway_reset = efx_ethtool_nway_reset,
1118 .get_link = efx_ethtool_get_link,
1119 .get_eeprom_len = efx_ethtool_get_eeprom_len,
1120 .get_eeprom = efx_ethtool_get_eeprom,
1121 .set_eeprom = efx_ethtool_set_eeprom,
1122 .get_coalesce = efx_ethtool_get_coalesce,
1123 .set_coalesce = efx_ethtool_set_coalesce,
1124 .get_ringparam = efx_ethtool_get_ringparam,
1125 .set_ringparam = efx_ethtool_set_ringparam,
1126 .get_pauseparam = efx_ethtool_get_pauseparam,
1127 .set_pauseparam = efx_ethtool_set_pauseparam,
1128 .get_rx_csum = efx_ethtool_get_rx_csum,
1129 .set_rx_csum = efx_ethtool_set_rx_csum,
1130 .get_tx_csum = ethtool_op_get_tx_csum,
1131 /* Need to enable/disable IPv6 too */
1132 .set_tx_csum = efx_ethtool_set_tx_csum,
1133 .get_sg = ethtool_op_get_sg,
1134 .set_sg = ethtool_op_set_sg,
1135 .get_tso = ethtool_op_get_tso,
1136 /* Need to enable/disable TSO-IPv6 too */
1137 .set_tso = efx_ethtool_set_tso,
1138 .get_flags = ethtool_op_get_flags,
1139 .set_flags = efx_ethtool_set_flags,
1140 .get_sset_count = efx_ethtool_get_sset_count,
1141 .self_test = efx_ethtool_self_test,
1142 .get_strings = efx_ethtool_get_strings,
1143 .phys_id = efx_ethtool_phys_id,
1144 .get_ethtool_stats = efx_ethtool_get_stats,
1145 .get_wol = efx_ethtool_get_wol,
1146 .set_wol = efx_ethtool_set_wol,
1147 .reset = efx_ethtool_reset,
1148 .get_rxnfc = efx_ethtool_get_rxnfc,
1149 .set_rx_ntuple = efx_ethtool_set_rx_ntuple,
1150 .get_rxfh_indir = efx_ethtool_get_rxfh_indir,
1151 .set_rxfh_indir = efx_ethtool_set_rxfh_indir,
1152};