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sfc: Validate IRQ moderation parameters in efx_init_irq_moderation()
[deliverable/linux.git] / drivers / net / ethernet / sfc / ethtool.c
CommitLineData
8ceee660
BH		 1/****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
0a6f40c6 4 * Copyright 2006-2010 Solarflare Communications Inc.
8ceee660
BH		 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>
c39d35eb 14#include <linux/in.h>
8ceee660 15#include "net_driver.h"
04cc8cac 16#include "workarounds.h"
3273c2e8 17#include "selftest.h"
8ceee660 18#include "efx.h"
b4187e42 19#include "filter.h"
744093c9 20#include "nic.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,
119226c5
BH		 31 EFX_ETHTOOL_STAT_SOURCE_channel,
32 EFX_ETHTOOL_STAT_SOURCE_tx_queue
8ceee660
BH		 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
119226c5
BH		 90#define EFX_ETHTOOL_UINT_TXQ_STAT(field) \
91 EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \
92 unsigned int, efx_get_uint_stat)
93
8ceee660
BH		 94static struct efx_ethtool_stat efx_ethtool_stats[] = {
95 EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
96 EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
97 EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
98 EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
99 EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
100 EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
101 EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
102 EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
103 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
104 EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
105 EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
106 EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
107 EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
108 EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
109 EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
110 EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
111 EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
112 EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
113 EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
114 EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
115 EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
116 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
117 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
118 EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
119 EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
120 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
121 EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
122 EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
123 EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
119226c5
BH		 124 EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
125 EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
126 EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
127 EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
8ceee660
BH		 128 EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
129 EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
130 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
131 EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
132 EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
133 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
134 EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
135 EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
136 EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
137 EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
138 EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
139 EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
140 EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
141 EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
142 EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
143 EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
144 EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
145 EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
146 EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
147 EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
148 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
149 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
150 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
151 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
152 EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
153 EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
154 EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
155 EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
156 EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
157 EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
158 EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
159 EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
160 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
161 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
162 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
163 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
c1ac403b 164 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
8ceee660
BH		 165 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
166};
167
168/* Number of ethtool statistics */
169#define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
170
4a5b504d 171#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
4a5b504d 172
8ceee660
BH		 173/**************************************************************************
174 *
175 * Ethtool operations
176 *
177 **************************************************************************
178 */
179
180/* Identify device by flashing LEDs */
c5e129ac
BH		 181static int efx_ethtool_phys_id(struct net_device *net_dev,
182 enum ethtool_phys_id_state state)
8ceee660 183{
767e468c 184 struct efx_nic *efx = netdev_priv(net_dev);
fce55922 185 enum efx_led_mode mode = EFX_LED_DEFAULT;
8ceee660 186
c5e129ac
BH		 187 switch (state) {
188 case ETHTOOL_ID_ON:
189 mode = EFX_LED_ON;
190 break;
191 case ETHTOOL_ID_OFF:
192 mode = EFX_LED_OFF;
193 break;
194 case ETHTOOL_ID_INACTIVE:
195 mode = EFX_LED_DEFAULT;
196 break;
fce55922
AB		 197 case ETHTOOL_ID_ACTIVE:
198 return 1; /* cycle on/off once per second */
c5e129ac 199 }
398468ed 200
c5e129ac 201 efx->type->set_id_led(efx, mode);
8ceee660
BH		 202 return 0;
203}
204
205/* This must be called with rtnl_lock held. */
d215697f 206static int efx_ethtool_get_settings(struct net_device *net_dev,
207 struct ethtool_cmd *ecmd)
8ceee660 208{
767e468c 209 struct efx_nic *efx = netdev_priv(net_dev);
d3245b28 210 struct efx_link_state *link_state = &efx->link_state;
8ceee660
BH		 211
212 mutex_lock(&efx->mac_lock);
177dfcd8 213 efx->phy_op->get_settings(efx, ecmd);
8ceee660
BH		 214 mutex_unlock(&efx->mac_lock);
215
754c653a 216 /* GMAC does not support 1000Mbps HD */
177dfcd8 217 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
d3245b28
BH		 218 /* Both MACs support pause frames (bidirectional and respond-only) */
219 ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
220
221 if (LOOPBACK_INTERNAL(efx)) {
70739497 222 ethtool_cmd_speed_set(ecmd, link_state->speed);
d3245b28
BH		 223 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
224 }
177dfcd8
BH		 225
226 return 0;
8ceee660
BH		 227}
228
229/* This must be called with rtnl_lock held. */
d215697f 230static int efx_ethtool_set_settings(struct net_device *net_dev,
231 struct ethtool_cmd *ecmd)
8ceee660 232{
767e468c 233 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 234 int rc;
235
754c653a 236 /* GMAC does not support 1000Mbps HD */
25db0338
DD		 237 if ((ethtool_cmd_speed(ecmd) == SPEED_1000) &&
238 (ecmd->duplex != DUPLEX_FULL)) {
62776d03
BH		 239 netif_dbg(efx, drv, efx->net_dev,
240 "rejecting unsupported 1000Mbps HD setting\n");
177dfcd8
BH		 241 return -EINVAL;
242 }
243
8ceee660 244 mutex_lock(&efx->mac_lock);
177dfcd8 245 rc = efx->phy_op->set_settings(efx, ecmd);
8ceee660 246 mutex_unlock(&efx->mac_lock);
8ceee660
BH		 247 return rc;
248}
249
250static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
251 struct ethtool_drvinfo *info)
252{
767e468c 253 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 254
c5d5f5fd 255 strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
8ceee660 256 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
8880f4ec 257 if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
e5f0fd27
BH		 258 efx_mcdi_print_fwver(efx, info->fw_version,
259 sizeof(info->fw_version));
8ceee660
BH		 260 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
261}
262
5b98c1bf
BH		 263static int efx_ethtool_get_regs_len(struct net_device *net_dev)
264{
265 return efx_nic_get_regs_len(netdev_priv(net_dev));
266}
267
268static void efx_ethtool_get_regs(struct net_device *net_dev,
269 struct ethtool_regs *regs, void *buf)
270{
271 struct efx_nic *efx = netdev_priv(net_dev);
272
273 regs->version = efx->type->revision;
274 efx_nic_get_regs(efx, buf);
275}
276
62776d03
BH		 277static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
278{
279 struct efx_nic *efx = netdev_priv(net_dev);
280 return efx->msg_enable;
281}
282
283static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
284{
285 struct efx_nic *efx = netdev_priv(net_dev);
286 efx->msg_enable = msg_enable;
287}
288
3273c2e8
BH		 289/**
290 * efx_fill_test - fill in an individual self-test entry
291 * @test_index: Index of the test
292 * @strings: Ethtool strings, or %NULL
293 * @data: Ethtool test results, or %NULL
294 * @test: Pointer to test result (used only if data != %NULL)
740ced99
BH		 295 * @unit_format: Unit name format (e.g. "chan\%d")
296 * @unit_id: Unit id (e.g. 0 for "chan0")
3273c2e8 297 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
740ced99 298 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
3273c2e8
BH		 299 *
300 * Fill in an individual self-test entry.
301 */
302static void efx_fill_test(unsigned int test_index,
303 struct ethtool_string *strings, u64 *data,
304 int *test, const char *unit_format, int unit_id,
305 const char *test_format, const char *test_id)
306{
307 struct ethtool_string unit_str, test_str;
308
309 /* Fill data value, if applicable */
310 if (data)
311 data[test_index] = *test;
312
313 /* Fill string, if applicable */
314 if (strings) {
11e66966
BH		 315 if (strchr(unit_format, '%'))
316 snprintf(unit_str.name, sizeof(unit_str.name),
317 unit_format, unit_id);
318 else
319 strcpy(unit_str.name, unit_format);
3273c2e8
BH		 320 snprintf(test_str.name, sizeof(test_str.name),
321 test_format, test_id);
322 snprintf(strings[test_index].name,
323 sizeof(strings[test_index].name),
740ced99 324 "%-6s %-24s", unit_str.name, test_str.name);
3273c2e8
BH		 325 }
326}
327
740ced99 328#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
3273c2e8
BH		 329#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
330#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
331#define EFX_LOOPBACK_NAME(_mode, _counter) \
c459302d 332 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
3273c2e8
BH		 333
334/**
335 * efx_fill_loopback_test - fill in a block of loopback self-test entries
336 * @efx: Efx NIC
337 * @lb_tests: Efx loopback self-test results structure
338 * @mode: Loopback test mode
339 * @test_index: Starting index of the test
340 * @strings: Ethtool strings, or %NULL
341 * @data: Ethtool test results, or %NULL
342 */
343static int efx_fill_loopback_test(struct efx_nic *efx,
344 struct efx_loopback_self_tests *lb_tests,
345 enum efx_loopback_mode mode,
346 unsigned int test_index,
347 struct ethtool_string *strings, u64 *data)
348{
f7d12cdc 349 struct efx_channel *channel = efx_get_channel(efx, 0);
3273c2e8
BH		 350 struct efx_tx_queue *tx_queue;
351
f7d12cdc 352 efx_for_each_channel_tx_queue(tx_queue, channel) {
3273c2e8
BH		 353 efx_fill_test(test_index++, strings, data,
354 &lb_tests->tx_sent[tx_queue->queue],
355 EFX_TX_QUEUE_NAME(tx_queue),
356 EFX_LOOPBACK_NAME(mode, "tx_sent"));
357 efx_fill_test(test_index++, strings, data,
358 &lb_tests->tx_done[tx_queue->queue],
359 EFX_TX_QUEUE_NAME(tx_queue),
360 EFX_LOOPBACK_NAME(mode, "tx_done"));
361 }
362 efx_fill_test(test_index++, strings, data,
363 &lb_tests->rx_good,
11e66966 364 "rx", 0,
3273c2e8
BH		 365 EFX_LOOPBACK_NAME(mode, "rx_good"));
366 efx_fill_test(test_index++, strings, data,
367 &lb_tests->rx_bad,
11e66966 368 "rx", 0,
3273c2e8
BH		 369 EFX_LOOPBACK_NAME(mode, "rx_bad"));
370
371 return test_index;
372}
373
374/**
375 * efx_ethtool_fill_self_tests - get self-test details
376 * @efx: Efx NIC
377 * @tests: Efx self-test results structure, or %NULL
378 * @strings: Ethtool strings, or %NULL
379 * @data: Ethtool test results, or %NULL
380 */
381static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
382 struct efx_self_tests *tests,
383 struct ethtool_string *strings,
384 u64 *data)
385{
386 struct efx_channel *channel;
1796721a 387 unsigned int n = 0, i;
3273c2e8
BH		 388 enum efx_loopback_mode mode;
389
4f16c073
BH		 390 efx_fill_test(n++, strings, data, &tests->phy_alive,
391 "phy", 0, "alive", NULL);
8c8661e4
BH		 392 efx_fill_test(n++, strings, data, &tests->nvram,
393 "core", 0, "nvram", NULL);
3273c2e8
BH		 394 efx_fill_test(n++, strings, data, &tests->interrupt,
395 "core", 0, "interrupt", NULL);
396
397 /* Event queues */
398 efx_for_each_channel(channel, efx) {
399 efx_fill_test(n++, strings, data,
400 &tests->eventq_dma[channel->channel],
401 EFX_CHANNEL_NAME(channel),
402 "eventq.dma", NULL);
403 efx_fill_test(n++, strings, data,
404 &tests->eventq_int[channel->channel],
405 EFX_CHANNEL_NAME(channel),
406 "eventq.int", NULL);
407 efx_fill_test(n++, strings, data,
408 &tests->eventq_poll[channel->channel],
409 EFX_CHANNEL_NAME(channel),
410 "eventq.poll", NULL);
411 }
412
8c8661e4
BH		 413 efx_fill_test(n++, strings, data, &tests->registers,
414 "core", 0, "registers", NULL);
1796721a 415
c1c4f453
BH		 416 if (efx->phy_op->run_tests != NULL) {
417 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
418
419 for (i = 0; true; ++i) {
420 const char *name;
421
422 EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
423 name = efx->phy_op->test_name(efx, i);
424 if (name == NULL)
425 break;
426
4f16c073 427 efx_fill_test(n++, strings, data, &tests->phy_ext[i],
c1c4f453
BH		 428 "phy", 0, name, NULL);
429 }
430 }
3273c2e8
BH		 431
432 /* Loopback tests */
8c8661e4 433 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
3273c2e8
BH		 434 if (!(efx->loopback_modes & (1 << mode)))
435 continue;
436 n = efx_fill_loopback_test(efx,
437 &tests->loopback[mode], mode, n,
438 strings, data);
439 }
440
441 return n;
442}
443
3594e131
BH		 444static int efx_ethtool_get_sset_count(struct net_device *net_dev,
445 int string_set)
8ceee660 446{
3594e131
BH		 447 switch (string_set) {
448 case ETH_SS_STATS:
449 return EFX_ETHTOOL_NUM_STATS;
450 case ETH_SS_TEST:
451 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
452 NULL, NULL, NULL);
453 default:
454 return -EINVAL;
455 }
3273c2e8
BH		 456}
457
8ceee660
BH		 458static void efx_ethtool_get_strings(struct net_device *net_dev,
459 u32 string_set, u8 *strings)
460{
767e468c 461 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 462 struct ethtool_string *ethtool_strings =
463 (struct ethtool_string *)strings;
464 int i;
465
3273c2e8
BH		 466 switch (string_set) {
467 case ETH_SS_STATS:
8ceee660
BH		 468 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
469 strncpy(ethtool_strings[i].name,
470 efx_ethtool_stats[i].name,
471 sizeof(ethtool_strings[i].name));
3273c2e8
BH		 472 break;
473 case ETH_SS_TEST:
474 efx_ethtool_fill_self_tests(efx, NULL,
475 ethtool_strings, NULL);
476 break;
477 default:
478 /* No other string sets */
479 break;
480 }
8ceee660
BH		 481}
482
483static void efx_ethtool_get_stats(struct net_device *net_dev,
484 struct ethtool_stats *stats,
485 u64 *data)
486{
767e468c 487 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660
BH		 488 struct efx_mac_stats *mac_stats = &efx->mac_stats;
489 struct efx_ethtool_stat *stat;
490 struct efx_channel *channel;
119226c5 491 struct efx_tx_queue *tx_queue;
28172739 492 struct rtnl_link_stats64 temp;
8ceee660
BH		 493 int i;
494
495 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
496
497 /* Update MAC and NIC statistics */
28172739 498 dev_get_stats(net_dev, &temp);
8ceee660
BH		 499
500 /* Fill detailed statistics buffer */
501 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
502 stat = &efx_ethtool_stats[i];
503 switch (stat->source) {
504 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
505 data[i] = stat->get_stat((void *)mac_stats +
506 stat->offset);
507 break;
508 case EFX_ETHTOOL_STAT_SOURCE_nic:
509 data[i] = stat->get_stat((void *)efx + stat->offset);
510 break;
511 case EFX_ETHTOOL_STAT_SOURCE_channel:
512 data[i] = 0;
513 efx_for_each_channel(channel, efx)
514 data[i] += stat->get_stat((void *)channel +
515 stat->offset);
516 break;
119226c5
BH		 517 case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
518 data[i] = 0;
519 efx_for_each_channel(channel, efx) {
520 efx_for_each_channel_tx_queue(tx_queue, channel)
521 data[i] +=
522 stat->get_stat((void *)tx_queue
523 + stat->offset);
524 }
525 break;
8ceee660
BH		 526 }
527 }
528}
529
3273c2e8
BH		 530static void efx_ethtool_self_test(struct net_device *net_dev,
531 struct ethtool_test *test, u64 *data)
532{
767e468c 533 struct efx_nic *efx = netdev_priv(net_dev);
28801f35 534 struct efx_self_tests *efx_tests;
2ef3068e 535 int already_up;
28801f35
ED		 536 int rc = -ENOMEM;
537
538 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
539 if (!efx_tests)
540 goto fail;
541
3273c2e8
BH		 542
543 ASSERT_RTNL();
544 if (efx->state != STATE_RUNNING) {
545 rc = -EIO;
546 goto fail1;
547 }
548
ac33ac61
BH		 549 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
550 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
551
3273c2e8
BH		 552 /* We need rx buffers and interrupts. */
553 already_up = (efx->net_dev->flags & IFF_UP);
554 if (!already_up) {
555 rc = dev_open(efx->net_dev);
556 if (rc) {
62776d03
BH		 557 netif_err(efx, drv, efx->net_dev,
558 "failed opening device.\n");
28801f35 559 goto fail1;
3273c2e8
BH		 560 }
561 }
562
28801f35 563 rc = efx_selftest(efx, efx_tests, test->flags);
3273c2e8 564
3273c2e8
BH		 565 if (!already_up)
566 dev_close(efx->net_dev);
567
ac33ac61
BH		 568 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
569 rc == 0 ? "passed" : "failed",
570 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
3273c2e8 571
28801f35 572fail1:
3273c2e8 573 /* Fill ethtool results structures */
28801f35
ED		 574 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
575 kfree(efx_tests);
576fail:
3273c2e8
BH		 577 if (rc)
578 test->flags |= ETH_TEST_FL_FAILED;
579}
580
8ceee660
BH		 581/* Restart autonegotiation */
582static int efx_ethtool_nway_reset(struct net_device *net_dev)
583{
767e468c 584 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 585
68e7f45e 586 return mdio45_nway_restart(&efx->mdio);
8ceee660
BH		 587}
588
a0c4faf5
BH		 589/*
590 * Each channel has a single IRQ and moderation timer, started by any
591 * completion (or other event). Unless the module parameter
592 * separate_tx_channels is set, IRQs and moderation are therefore
593 * shared between RX and TX completions. In this case, when RX IRQ
594 * moderation is explicitly changed then TX IRQ moderation is
595 * automatically changed too, but otherwise we fail if the two values
596 * are requested to be different.
597 *
598 * We implement adaptive IRQ moderation, but use a different algorithm
599 * from that assumed in the definition of struct ethtool_coalesce.
600 * Therefore we do not use any of the adaptive moderation parameters
601 * in it.
602 */
603
8ceee660
BH		 604static int efx_ethtool_get_coalesce(struct net_device *net_dev,
605 struct ethtool_coalesce *coalesce)
606{
767e468c 607 struct efx_nic *efx = netdev_priv(net_dev);
a0c4faf5
BH		 608 unsigned int tx_usecs, rx_usecs;
609 bool rx_adaptive;
8ceee660 610
a0c4faf5 611 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);
8ceee660 612
a0c4faf5
BH		 613 coalesce->tx_coalesce_usecs_irq = tx_usecs;
614 coalesce->rx_coalesce_usecs_irq = rx_usecs;
615 coalesce->use_adaptive_rx_coalesce = rx_adaptive;
0d86ebd8 616
8ceee660
BH		 617 return 0;
618}
619
8ceee660
BH		 620static int efx_ethtool_set_coalesce(struct net_device *net_dev,
621 struct ethtool_coalesce *coalesce)
622{
767e468c 623 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 624 struct efx_channel *channel;
b548f976 625 unsigned int tx_usecs, rx_usecs;
9e393b30
BH		 626 bool adaptive, rx_may_override_tx;
627 int rc;
8ceee660 628
6fb70fd1 629 if (coalesce->use_adaptive_tx_coalesce)
9f85ee9c 630 return -EINVAL;
8ceee660
BH		 631
632 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
62776d03
BH		 633 netif_err(efx, drv, efx->net_dev, "invalid coalescing setting. "
634 "Only rx/tx_coalesce_usecs_irq are supported\n");
9f85ee9c 635 return -EINVAL;
8ceee660
BH		 636 }
637
a0c4faf5
BH		 638 efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);
639
8ceee660 640 rx_usecs = coalesce->rx_coalesce_usecs_irq;
6fb70fd1 641 adaptive = coalesce->use_adaptive_rx_coalesce;
8ceee660 642
a0c4faf5
BH		 643 /* If channels are shared, TX IRQ moderation can be quietly
644 * overridden unless it is changed from its old value.
645 */
9e393b30 646 rx_may_override_tx = coalesce->tx_coalesce_usecs_irq == tx_usecs;
a0c4faf5 647 tx_usecs = coalesce->tx_coalesce_usecs_irq;
8ceee660 648
9e393b30
BH		 649 rc = efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
650 rx_may_override_tx);
651 if (rc != 0)
652 return rc;
653
8ceee660 654 efx_for_each_channel(channel, efx)
ef2b90ee 655 efx->type->push_irq_moderation(channel);
8ceee660
BH		 656
657 return 0;
658}
659
4642610c
BH		 660static void efx_ethtool_get_ringparam(struct net_device *net_dev,
661 struct ethtool_ringparam *ring)
662{
663 struct efx_nic *efx = netdev_priv(net_dev);
664
665 ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
666 ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
667 ring->rx_mini_max_pending = 0;
668 ring->rx_jumbo_max_pending = 0;
669 ring->rx_pending = efx->rxq_entries;
670 ring->tx_pending = efx->txq_entries;
671 ring->rx_mini_pending = 0;
672 ring->rx_jumbo_pending = 0;
673}
674
675static int efx_ethtool_set_ringparam(struct net_device *net_dev,
676 struct ethtool_ringparam *ring)
677{
678 struct efx_nic *efx = netdev_priv(net_dev);
679
680 if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
681 ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
682 ring->tx_pending > EFX_MAX_DMAQ_SIZE)
683 return -EINVAL;
684
685 if (ring->rx_pending < EFX_MIN_RING_SIZE ||
686 ring->tx_pending < EFX_MIN_RING_SIZE) {
687 netif_err(efx, drv, efx->net_dev,
688 "TX and RX queues cannot be smaller than %ld\n",
689 EFX_MIN_RING_SIZE);
690 return -EINVAL;
691 }
692
693 return efx_realloc_channels(efx, ring->rx_pending, ring->tx_pending);
694}
695
8ceee660
BH		 696static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
697 struct ethtool_pauseparam *pause)
698{
767e468c 699 struct efx_nic *efx = netdev_priv(net_dev);
b5626946 700 u8 wanted_fc, old_fc;
d3245b28 701 u32 old_adv;
04cc8cac 702 bool reset;
d3245b28
BH		 703 int rc = 0;
704
705 mutex_lock(&efx->mac_lock);
8ceee660 706
04cc8cac
BH		 707 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
708 (pause->tx_pause ? EFX_FC_TX : 0) |
709 (pause->autoneg ? EFX_FC_AUTO : 0));
710
711 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
62776d03
BH		 712 netif_dbg(efx, drv, efx->net_dev,
713 "Flow control unsupported: tx ON rx OFF\n");
d3245b28
BH		 714 rc = -EINVAL;
715 goto out;
04cc8cac
BH		 716 }
717
d3245b28 718 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
62776d03
BH		 719 netif_dbg(efx, drv, efx->net_dev,
720 "Autonegotiation is disabled\n");
d3245b28
BH		 721 rc = -EINVAL;
722 goto out;
04cc8cac
BH		 723 }
724
725 /* TX flow control may automatically turn itself off if the
726 * link partner (intermittently) stops responding to pause
727 * frames. There isn't any indication that this has happened,
728 * so the best we do is leave it up to the user to spot this
729 * and fix it be cycling transmit flow control on this end. */
730 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
731 if (EFX_WORKAROUND_11482(efx) && reset) {
daeda630 732 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
04cc8cac 733 /* Recover by resetting the EM block */
d3245b28
BH		 734 falcon_stop_nic_stats(efx);
735 falcon_drain_tx_fifo(efx);
736 efx->mac_op->reconfigure(efx);
737 falcon_start_nic_stats(efx);
04cc8cac
BH		 738 } else {
739 /* Schedule a reset to recover */
740 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
741 }
742 }
743
d3245b28
BH		 744 old_adv = efx->link_advertising;
745 old_fc = efx->wanted_fc;
746 efx_link_set_wanted_fc(efx, wanted_fc);
747 if (efx->link_advertising != old_adv ||
748 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
749 rc = efx->phy_op->reconfigure(efx);
750 if (rc) {
62776d03
BH		 751 netif_err(efx, drv, efx->net_dev,
752 "Unable to advertise requested flow "
753 "control setting\n");
d3245b28
BH		 754 goto out;
755 }
756 }
04cc8cac 757
d3245b28
BH		 758 /* Reconfigure the MAC. The PHY *may* generate a link state change event
759 * if the user just changed the advertised capabilities, but there's no
760 * harm doing this twice */
761 efx->mac_op->reconfigure(efx);
04cc8cac 762
d3245b28 763out:
04cc8cac 764 mutex_unlock(&efx->mac_lock);
8ceee660 765
d3245b28 766 return rc;
8ceee660
BH		 767}
768
769static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
770 struct ethtool_pauseparam *pause)
771{
767e468c 772 struct efx_nic *efx = netdev_priv(net_dev);
8ceee660 773
04cc8cac
BH		 774 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
775 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
776 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
8ceee660
BH		 777}
778
779
89c758fa
BH		 780static void efx_ethtool_get_wol(struct net_device *net_dev,
781 struct ethtool_wolinfo *wol)
782{
783 struct efx_nic *efx = netdev_priv(net_dev);
784 return efx->type->get_wol(efx, wol);
785}
786
787
788static int efx_ethtool_set_wol(struct net_device *net_dev,
789 struct ethtool_wolinfo *wol)
790{
791 struct efx_nic *efx = netdev_priv(net_dev);
792 return efx->type->set_wol(efx, wol->wolopts);
793}
794
d215697f 795static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
eb9f6744
BH		 796{
797 struct efx_nic *efx = netdev_priv(net_dev);
0e2a9c7c 798 int rc;
eb9f6744 799
0e2a9c7c
BH		 800 rc = efx->type->map_reset_flags(flags);
801 if (rc < 0)
802 return rc;
eb9f6744 803
0e2a9c7c 804 return efx_reset(efx, rc);
eb9f6744
BH		 805}
806
765c9f46
BH		 807static int
808efx_ethtool_get_rxnfc(struct net_device *net_dev,
809 struct ethtool_rxnfc *info, void *rules __always_unused)
810{
811 struct efx_nic *efx = netdev_priv(net_dev);
812
813 switch (info->cmd) {
814 case ETHTOOL_GRXRINGS:
815 info->data = efx->n_rx_channels;
816 return 0;
817
818 case ETHTOOL_GRXFH: {
819 unsigned min_revision = 0;
820
821 info->data = 0;
822 switch (info->flow_type) {
823 case TCP_V4_FLOW:
824 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
825 /* fall through */
826 case UDP_V4_FLOW:
827 case SCTP_V4_FLOW:
828 case AH_ESP_V4_FLOW:
829 case IPV4_FLOW:
830 info->data |= RXH_IP_SRC | RXH_IP_DST;
831 min_revision = EFX_REV_FALCON_B0;
832 break;
833 case TCP_V6_FLOW:
834 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
835 /* fall through */
836 case UDP_V6_FLOW:
837 case SCTP_V6_FLOW:
838 case AH_ESP_V6_FLOW:
839 case IPV6_FLOW:
840 info->data |= RXH_IP_SRC | RXH_IP_DST;
841 min_revision = EFX_REV_SIENA_A0;
842 break;
843 default:
844 break;
845 }
846 if (efx_nic_rev(efx) < min_revision)
847 info->data = 0;
848 return 0;
849 }
850
851 default:
852 return -EOPNOTSUPP;
853 }
854}
855
b4187e42
BH		 856static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
857 struct ethtool_rx_ntuple *ntuple)
858{
859 struct efx_nic *efx = netdev_priv(net_dev);
860 struct ethtool_tcpip4_spec *ip_entry = &ntuple->fs.h_u.tcp_ip4_spec;
861 struct ethtool_tcpip4_spec *ip_mask = &ntuple->fs.m_u.tcp_ip4_spec;
862 struct ethhdr *mac_entry = &ntuple->fs.h_u.ether_spec;
863 struct ethhdr *mac_mask = &ntuple->fs.m_u.ether_spec;
864 struct efx_filter_spec filter;
c39d35eb 865 int rc;
b4187e42
BH		 866
867 /* Range-check action */
868 if (ntuple->fs.action < ETHTOOL_RXNTUPLE_ACTION_CLEAR ||
869 ntuple->fs.action >= (s32)efx->n_rx_channels)
870 return -EINVAL;
871
872 if (~ntuple->fs.data_mask)
873 return -EINVAL;
874
c39d35eb
BH		 875 efx_filter_init_rx(&filter, EFX_FILTER_PRI_MANUAL, 0,
876 (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP) ?
877 0xfff : ntuple->fs.action);
878
b4187e42
BH		 879 switch (ntuple->fs.flow_type) {
880 case TCP_V4_FLOW:
c39d35eb
BH		 881 case UDP_V4_FLOW: {
882 u8 proto = (ntuple->fs.flow_type == TCP_V4_FLOW ?
883 IPPROTO_TCP : IPPROTO_UDP);
884
b4187e42
BH		 885 /* Must match all of destination, */
886 if (ip_mask->ip4dst | ip_mask->pdst)
887 return -EINVAL;
888 /* all or none of source, */
889 if ((ip_mask->ip4src | ip_mask->psrc) &&
890 ((__force u32)~ip_mask->ip4src |
891 (__force u16)~ip_mask->psrc))
892 return -EINVAL;
893 /* and nothing else */
894 if ((u8)~ip_mask->tos | (u16)~ntuple->fs.vlan_tag_mask)
895 return -EINVAL;
c39d35eb
BH		 896
897 if (!ip_mask->ip4src)
898 rc = efx_filter_set_ipv4_full(&filter, proto,
899 ip_entry->ip4dst,
900 ip_entry->pdst,
901 ip_entry->ip4src,
902 ip_entry->psrc);
903 else
904 rc = efx_filter_set_ipv4_local(&filter, proto,
905 ip_entry->ip4dst,
906 ip_entry->pdst);
907 if (rc)
908 return rc;
b4187e42 909 break;
c39d35eb
BH		 910 }
911
b4187e42
BH		 912 case ETHER_FLOW:
913 /* Must match all of destination, */
914 if (!is_zero_ether_addr(mac_mask->h_dest))
915 return -EINVAL;
916 /* all or none of VID, */
917 if (ntuple->fs.vlan_tag_mask != 0xf000 &&
918 ntuple->fs.vlan_tag_mask != 0xffff)
919 return -EINVAL;
920 /* and nothing else */
921 if (!is_broadcast_ether_addr(mac_mask->h_source) ||
922 mac_mask->h_proto != htons(0xffff))
923 return -EINVAL;
c39d35eb
BH		 924
925 rc = efx_filter_set_eth_local(
926 &filter,
927 (ntuple->fs.vlan_tag_mask == 0xf000) ?
928 ntuple->fs.vlan_tag : EFX_FILTER_VID_UNSPEC,
929 mac_entry->h_dest);
930 if (rc)
931 return rc;
b4187e42 932 break;
c39d35eb 933
b4187e42
BH		 934 default:
935 return -EINVAL;
936 }
937
c39d35eb 938 if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_CLEAR)
b4187e42 939 return efx_filter_remove_filter(efx, &filter);
47a8467c
BH		 940
941 rc = efx_filter_insert_filter(efx, &filter, true);
942 return rc < 0 ? rc : 0;
b4187e42
BH		 943}
944
765c9f46
BH		 945static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
946 struct ethtool_rxfh_indir *indir)
947{
948 struct efx_nic *efx = netdev_priv(net_dev);
949 size_t copy_size =
950 min_t(size_t, indir->size, ARRAY_SIZE(efx->rx_indir_table));
951
952 if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
953 return -EOPNOTSUPP;
954
955 indir->size = ARRAY_SIZE(efx->rx_indir_table);
956 memcpy(indir->ring_index, efx->rx_indir_table,
957 copy_size * sizeof(indir->ring_index[0]));
958 return 0;
959}
960
961static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
962 const struct ethtool_rxfh_indir *indir)
963{
964 struct efx_nic *efx = netdev_priv(net_dev);
965 size_t i;
966
967 if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
968 return -EOPNOTSUPP;
969
970 /* Validate size and indices */
971 if (indir->size != ARRAY_SIZE(efx->rx_indir_table))
972 return -EINVAL;
973 for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
974 if (indir->ring_index[i] >= efx->n_rx_channels)
975 return -EINVAL;
976
977 memcpy(efx->rx_indir_table, indir->ring_index,
978 sizeof(efx->rx_indir_table));
979 efx_nic_push_rx_indir_table(efx);
980 return 0;
981}
982
0fc0b732 983const struct ethtool_ops efx_ethtool_ops = {
8ceee660
BH		 984 .get_settings = efx_ethtool_get_settings,
985 .set_settings = efx_ethtool_set_settings,
986 .get_drvinfo = efx_ethtool_get_drvinfo,
5b98c1bf
BH		 987 .get_regs_len = efx_ethtool_get_regs_len,
988 .get_regs = efx_ethtool_get_regs,
62776d03
BH		 989 .get_msglevel = efx_ethtool_get_msglevel,
990 .set_msglevel = efx_ethtool_set_msglevel,
8ceee660 991 .nway_reset = efx_ethtool_nway_reset,
ed4ba4b5 992 .get_link = ethtool_op_get_link,
8ceee660
BH		 993 .get_coalesce = efx_ethtool_get_coalesce,
994 .set_coalesce = efx_ethtool_set_coalesce,
4642610c
BH		 995 .get_ringparam = efx_ethtool_get_ringparam,
996 .set_ringparam = efx_ethtool_set_ringparam,
8ceee660
BH		 997 .get_pauseparam = efx_ethtool_get_pauseparam,
998 .set_pauseparam = efx_ethtool_set_pauseparam,
3594e131 999 .get_sset_count = efx_ethtool_get_sset_count,
3273c2e8 1000 .self_test = efx_ethtool_self_test,
8ceee660 1001 .get_strings = efx_ethtool_get_strings,
c5e129ac 1002 .set_phys_id = efx_ethtool_phys_id,
8ceee660 1003 .get_ethtool_stats = efx_ethtool_get_stats,
89c758fa
BH		 1004 .get_wol = efx_ethtool_get_wol,
1005 .set_wol = efx_ethtool_set_wol,
eb9f6744 1006 .reset = efx_ethtool_reset,
765c9f46 1007 .get_rxnfc = efx_ethtool_get_rxnfc,
b4187e42 1008 .set_rx_ntuple = efx_ethtool_set_rx_ntuple,
765c9f46
BH		 1009 .get_rxfh_indir = efx_ethtool_get_rxfh_indir,
1010 .set_rxfh_indir = efx_ethtool_set_rxfh_indir,
8ceee660 1011};
Linux kernel - Deliverables
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