1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2008 Solarflare Communications Inc.
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.
11 #include <linux/netdevice.h>
12 #include <linux/ethtool.h>
13 #include <linux/mdio.h>
14 #include <linux/rtnetlink.h>
15 #include "net_driver.h"
16 #include "workarounds.h"
24 const char *efx_loopback_mode_names[] = {
25 [LOOPBACK_NONE] = "NONE",
26 [LOOPBACK_GMAC] = "GMAC",
27 [LOOPBACK_XGMII] = "XGMII",
28 [LOOPBACK_XGXS] = "XGXS",
29 [LOOPBACK_XAUI] = "XAUI",
30 [LOOPBACK_GPHY] = "GPHY",
31 [LOOPBACK_PHYXS] = "PHYXS",
32 [LOOPBACK_PCS] = "PCS",
33 [LOOPBACK_PMAPMD] = "PMA/PMD",
34 [LOOPBACK_NETWORK] = "NETWORK",
37 struct ethtool_string {
38 char name[ETH_GSTRING_LEN];
41 struct efx_ethtool_stat {
44 EFX_ETHTOOL_STAT_SOURCE_mac_stats,
45 EFX_ETHTOOL_STAT_SOURCE_nic,
46 EFX_ETHTOOL_STAT_SOURCE_channel
49 u64(*get_stat) (void *field); /* Reader function */
52 /* Initialiser for a struct #efx_ethtool_stat with type-checking */
53 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
54 get_stat_function) { \
56 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
57 .offset = ((((field_type *) 0) == \
58 &((struct efx_##source_name *)0)->field) ? \
59 offsetof(struct efx_##source_name, field) : \
60 offsetof(struct efx_##source_name, field)), \
61 .get_stat = get_stat_function, \
64 static u64 efx_get_uint_stat(void *field)
66 return *(unsigned int *)field;
69 static u64 efx_get_ulong_stat(void *field)
71 return *(unsigned long *)field;
74 static u64 efx_get_u64_stat(void *field)
76 return *(u64 *) field;
79 static u64 efx_get_atomic_stat(void *field)
81 return atomic_read((atomic_t *) field);
84 #define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
85 EFX_ETHTOOL_STAT(field, mac_stats, field, \
86 unsigned long, efx_get_ulong_stat)
88 #define EFX_ETHTOOL_U64_MAC_STAT(field) \
89 EFX_ETHTOOL_STAT(field, mac_stats, field, \
90 u64, efx_get_u64_stat)
92 #define EFX_ETHTOOL_UINT_NIC_STAT(name) \
93 EFX_ETHTOOL_STAT(name, nic, n_##name, \
94 unsigned int, efx_get_uint_stat)
96 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
97 EFX_ETHTOOL_STAT(field, nic, field, \
98 atomic_t, efx_get_atomic_stat)
100 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
101 EFX_ETHTOOL_STAT(field, channel, n_##field, \
102 unsigned int, efx_get_uint_stat)
104 static struct efx_ethtool_stat efx_ethtool_stats[] = {
105 EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
106 EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
107 EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
108 EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
109 EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
110 EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
111 EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
112 EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
113 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
114 EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
115 EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
116 EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
117 EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
118 EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
119 EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
120 EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
121 EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
122 EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
123 EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
124 EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
125 EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
126 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
127 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
128 EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
129 EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
130 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
131 EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
132 EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
133 EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
134 EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
135 EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
136 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
137 EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
138 EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
139 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
140 EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
141 EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
142 EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
143 EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
144 EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
145 EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
146 EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
147 EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
148 EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
149 EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
150 EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
151 EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
152 EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
153 EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
154 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
155 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
156 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
157 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
158 EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
159 EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
160 EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
161 EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
162 EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
163 EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
164 EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
165 EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
166 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
167 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
168 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
169 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
170 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
173 /* Number of ethtool statistics */
174 #define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
176 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
178 /**************************************************************************
182 **************************************************************************
185 /* Identify device by flashing LEDs */
186 static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
188 struct efx_nic *efx = netdev_priv(net_dev);
191 efx->board_info.set_id_led(efx, EFX_LED_ON);
192 schedule_timeout_interruptible(HZ / 2);
194 efx->board_info.set_id_led(efx, EFX_LED_OFF);
195 schedule_timeout_interruptible(HZ / 2);
196 } while (!signal_pending(current) && --count != 0);
198 efx->board_info.set_id_led(efx, EFX_LED_DEFAULT);
202 /* This must be called with rtnl_lock held. */
203 int efx_ethtool_get_settings(struct net_device *net_dev,
204 struct ethtool_cmd *ecmd)
206 struct efx_nic *efx = netdev_priv(net_dev);
208 mutex_lock(&efx->mac_lock);
209 efx->phy_op->get_settings(efx, ecmd);
210 mutex_unlock(&efx->mac_lock);
212 /* Falcon GMAC does not support 1000Mbps HD */
213 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
218 /* This must be called with rtnl_lock held. */
219 int efx_ethtool_set_settings(struct net_device *net_dev,
220 struct ethtool_cmd *ecmd)
222 struct efx_nic *efx = netdev_priv(net_dev);
225 /* Falcon GMAC does not support 1000Mbps HD */
226 if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
227 EFX_LOG(efx, "rejecting unsupported 1000Mbps HD"
232 mutex_lock(&efx->mac_lock);
233 rc = efx->phy_op->set_settings(efx, ecmd);
234 mutex_unlock(&efx->mac_lock);
236 efx_reconfigure_port(efx);
241 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
242 struct ethtool_drvinfo *info)
244 struct efx_nic *efx = netdev_priv(net_dev);
246 strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
247 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
248 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
252 * efx_fill_test - fill in an individual self-test entry
253 * @test_index: Index of the test
254 * @strings: Ethtool strings, or %NULL
255 * @data: Ethtool test results, or %NULL
256 * @test: Pointer to test result (used only if data != %NULL)
257 * @unit_format: Unit name format (e.g. "chan\%d")
258 * @unit_id: Unit id (e.g. 0 for "chan0")
259 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
260 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
262 * Fill in an individual self-test entry.
264 static void efx_fill_test(unsigned int test_index,
265 struct ethtool_string *strings, u64 *data,
266 int *test, const char *unit_format, int unit_id,
267 const char *test_format, const char *test_id)
269 struct ethtool_string unit_str, test_str;
271 /* Fill data value, if applicable */
273 data[test_index] = *test;
275 /* Fill string, if applicable */
277 if (strchr(unit_format, '%'))
278 snprintf(unit_str.name, sizeof(unit_str.name),
279 unit_format, unit_id);
281 strcpy(unit_str.name, unit_format);
282 snprintf(test_str.name, sizeof(test_str.name),
283 test_format, test_id);
284 snprintf(strings[test_index].name,
285 sizeof(strings[test_index].name),
286 "%-6s %-24s", unit_str.name, test_str.name);
290 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
291 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
292 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
293 #define EFX_LOOPBACK_NAME(_mode, _counter) \
294 "loopback.%s." _counter, LOOPBACK_MODE_NAME(mode)
297 * efx_fill_loopback_test - fill in a block of loopback self-test entries
299 * @lb_tests: Efx loopback self-test results structure
300 * @mode: Loopback test mode
301 * @test_index: Starting index of the test
302 * @strings: Ethtool strings, or %NULL
303 * @data: Ethtool test results, or %NULL
305 static int efx_fill_loopback_test(struct efx_nic *efx,
306 struct efx_loopback_self_tests *lb_tests,
307 enum efx_loopback_mode mode,
308 unsigned int test_index,
309 struct ethtool_string *strings, u64 *data)
311 struct efx_tx_queue *tx_queue;
313 efx_for_each_tx_queue(tx_queue, efx) {
314 efx_fill_test(test_index++, strings, data,
315 &lb_tests->tx_sent[tx_queue->queue],
316 EFX_TX_QUEUE_NAME(tx_queue),
317 EFX_LOOPBACK_NAME(mode, "tx_sent"));
318 efx_fill_test(test_index++, strings, data,
319 &lb_tests->tx_done[tx_queue->queue],
320 EFX_TX_QUEUE_NAME(tx_queue),
321 EFX_LOOPBACK_NAME(mode, "tx_done"));
323 efx_fill_test(test_index++, strings, data,
326 EFX_LOOPBACK_NAME(mode, "rx_good"));
327 efx_fill_test(test_index++, strings, data,
330 EFX_LOOPBACK_NAME(mode, "rx_bad"));
336 * efx_ethtool_fill_self_tests - get self-test details
338 * @tests: Efx self-test results structure, or %NULL
339 * @strings: Ethtool strings, or %NULL
340 * @data: Ethtool test results, or %NULL
342 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
343 struct efx_self_tests *tests,
344 struct ethtool_string *strings,
347 struct efx_channel *channel;
348 unsigned int n = 0, i;
349 enum efx_loopback_mode mode;
351 efx_fill_test(n++, strings, data, &tests->mdio,
352 "core", 0, "mdio", NULL);
353 efx_fill_test(n++, strings, data, &tests->nvram,
354 "core", 0, "nvram", NULL);
355 efx_fill_test(n++, strings, data, &tests->interrupt,
356 "core", 0, "interrupt", NULL);
359 efx_for_each_channel(channel, efx) {
360 efx_fill_test(n++, strings, data,
361 &tests->eventq_dma[channel->channel],
362 EFX_CHANNEL_NAME(channel),
364 efx_fill_test(n++, strings, data,
365 &tests->eventq_int[channel->channel],
366 EFX_CHANNEL_NAME(channel),
368 efx_fill_test(n++, strings, data,
369 &tests->eventq_poll[channel->channel],
370 EFX_CHANNEL_NAME(channel),
371 "eventq.poll", NULL);
374 efx_fill_test(n++, strings, data, &tests->registers,
375 "core", 0, "registers", NULL);
377 for (i = 0; i < efx->phy_op->num_tests; i++)
378 efx_fill_test(n++, strings, data, &tests->phy[i],
379 "phy", 0, efx->phy_op->test_names[i], NULL);
382 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
383 if (!(efx->loopback_modes & (1 << mode)))
385 n = efx_fill_loopback_test(efx,
386 &tests->loopback[mode], mode, n,
393 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
396 switch (string_set) {
398 return EFX_ETHTOOL_NUM_STATS;
400 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
407 static void efx_ethtool_get_strings(struct net_device *net_dev,
408 u32 string_set, u8 *strings)
410 struct efx_nic *efx = netdev_priv(net_dev);
411 struct ethtool_string *ethtool_strings =
412 (struct ethtool_string *)strings;
415 switch (string_set) {
417 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
418 strncpy(ethtool_strings[i].name,
419 efx_ethtool_stats[i].name,
420 sizeof(ethtool_strings[i].name));
423 efx_ethtool_fill_self_tests(efx, NULL,
424 ethtool_strings, NULL);
427 /* No other string sets */
432 static void efx_ethtool_get_stats(struct net_device *net_dev,
433 struct ethtool_stats *stats,
436 struct efx_nic *efx = netdev_priv(net_dev);
437 struct efx_mac_stats *mac_stats = &efx->mac_stats;
438 struct efx_ethtool_stat *stat;
439 struct efx_channel *channel;
442 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
444 /* Update MAC and NIC statistics */
445 dev_get_stats(net_dev);
447 /* Fill detailed statistics buffer */
448 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
449 stat = &efx_ethtool_stats[i];
450 switch (stat->source) {
451 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
452 data[i] = stat->get_stat((void *)mac_stats +
455 case EFX_ETHTOOL_STAT_SOURCE_nic:
456 data[i] = stat->get_stat((void *)efx + stat->offset);
458 case EFX_ETHTOOL_STAT_SOURCE_channel:
460 efx_for_each_channel(channel, efx)
461 data[i] += stat->get_stat((void *)channel +
468 static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
470 struct efx_nic *efx = netdev_priv(net_dev);
472 /* No way to stop the hardware doing the checks; we just
475 efx->rx_checksum_enabled = !!enable;
480 static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
482 struct efx_nic *efx = netdev_priv(net_dev);
484 return efx->rx_checksum_enabled;
487 static void efx_ethtool_self_test(struct net_device *net_dev,
488 struct ethtool_test *test, u64 *data)
490 struct efx_nic *efx = netdev_priv(net_dev);
491 struct efx_self_tests efx_tests;
496 if (efx->state != STATE_RUNNING) {
501 /* We need rx buffers and interrupts. */
502 already_up = (efx->net_dev->flags & IFF_UP);
504 rc = dev_open(efx->net_dev);
506 EFX_ERR(efx, "failed opening device.\n");
511 memset(&efx_tests, 0, sizeof(efx_tests));
513 rc = efx_selftest(efx, &efx_tests, test->flags);
516 dev_close(efx->net_dev);
518 EFX_LOG(efx, "%s %sline self-tests\n",
519 rc == 0 ? "passed" : "failed",
520 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
524 /* Fill ethtool results structures */
525 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
527 test->flags |= ETH_TEST_FL_FAILED;
530 /* Restart autonegotiation */
531 static int efx_ethtool_nway_reset(struct net_device *net_dev)
533 struct efx_nic *efx = netdev_priv(net_dev);
535 return mdio45_nway_restart(&efx->mdio);
538 static u32 efx_ethtool_get_link(struct net_device *net_dev)
540 struct efx_nic *efx = netdev_priv(net_dev);
545 static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
547 struct efx_nic *efx = netdev_priv(net_dev);
548 struct efx_spi_device *spi = efx->spi_eeprom;
552 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
553 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
556 static int efx_ethtool_get_eeprom(struct net_device *net_dev,
557 struct ethtool_eeprom *eeprom, u8 *buf)
559 struct efx_nic *efx = netdev_priv(net_dev);
560 struct efx_spi_device *spi = efx->spi_eeprom;
564 rc = mutex_lock_interruptible(&efx->spi_lock);
567 rc = falcon_spi_read(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
568 eeprom->len, &len, buf);
569 mutex_unlock(&efx->spi_lock);
571 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
576 static int efx_ethtool_set_eeprom(struct net_device *net_dev,
577 struct ethtool_eeprom *eeprom, u8 *buf)
579 struct efx_nic *efx = netdev_priv(net_dev);
580 struct efx_spi_device *spi = efx->spi_eeprom;
584 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
587 rc = mutex_lock_interruptible(&efx->spi_lock);
590 rc = falcon_spi_write(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
591 eeprom->len, &len, buf);
592 mutex_unlock(&efx->spi_lock);
598 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
599 struct ethtool_coalesce *coalesce)
601 struct efx_nic *efx = netdev_priv(net_dev);
602 struct efx_tx_queue *tx_queue;
603 struct efx_channel *channel;
605 memset(coalesce, 0, sizeof(*coalesce));
607 /* Find lowest IRQ moderation across all used TX queues */
608 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
609 efx_for_each_tx_queue(tx_queue, efx) {
610 channel = tx_queue->channel;
611 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
612 if (channel->used_flags != EFX_USED_BY_RX_TX)
613 coalesce->tx_coalesce_usecs_irq =
614 channel->irq_moderation;
616 coalesce->tx_coalesce_usecs_irq = 0;
620 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
621 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
623 coalesce->tx_coalesce_usecs_irq *= FALCON_IRQ_MOD_RESOLUTION;
624 coalesce->rx_coalesce_usecs_irq *= FALCON_IRQ_MOD_RESOLUTION;
629 /* Set coalescing parameters
630 * The difficulties occur for shared channels
632 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
633 struct ethtool_coalesce *coalesce)
635 struct efx_nic *efx = netdev_priv(net_dev);
636 struct efx_channel *channel;
637 struct efx_tx_queue *tx_queue;
638 unsigned tx_usecs, rx_usecs, adaptive;
640 if (coalesce->use_adaptive_tx_coalesce)
643 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
644 EFX_ERR(efx, "invalid coalescing setting. "
645 "Only rx/tx_coalesce_usecs_irq are supported\n");
649 rx_usecs = coalesce->rx_coalesce_usecs_irq;
650 tx_usecs = coalesce->tx_coalesce_usecs_irq;
651 adaptive = coalesce->use_adaptive_rx_coalesce;
653 /* If the channel is shared only allow RX parameters to be set */
654 efx_for_each_tx_queue(tx_queue, efx) {
655 if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
657 EFX_ERR(efx, "Channel is shared. "
658 "Only RX coalescing may be set\n");
663 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
664 efx_for_each_channel(channel, efx)
665 falcon_set_int_moderation(channel);
670 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
671 struct ethtool_pauseparam *pause)
673 struct efx_nic *efx = netdev_priv(net_dev);
674 enum efx_fc_type wanted_fc;
677 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
678 (pause->tx_pause ? EFX_FC_TX : 0) |
679 (pause->autoneg ? EFX_FC_AUTO : 0));
681 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
682 EFX_LOG(efx, "Flow control unsupported: tx ON rx OFF\n");
686 if (!(efx->phy_op->mmds & MDIO_DEVS_AN) &&
687 (wanted_fc & EFX_FC_AUTO)) {
688 EFX_LOG(efx, "PHY does not support flow control "
689 "autonegotiation\n");
693 /* TX flow control may automatically turn itself off if the
694 * link partner (intermittently) stops responding to pause
695 * frames. There isn't any indication that this has happened,
696 * so the best we do is leave it up to the user to spot this
697 * and fix it be cycling transmit flow control on this end. */
698 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
699 if (EFX_WORKAROUND_11482(efx) && reset) {
700 if (falcon_rev(efx) >= FALCON_REV_B0) {
701 /* Recover by resetting the EM block */
703 falcon_drain_tx_fifo(efx);
705 /* Schedule a reset to recover */
706 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
710 /* Try to push the pause parameters */
711 mutex_lock(&efx->mac_lock);
713 efx->wanted_fc = wanted_fc;
714 if (efx->phy_op->mmds & MDIO_DEVS_AN)
715 mdio45_ethtool_spauseparam_an(&efx->mdio, pause);
716 __efx_reconfigure_port(efx);
718 mutex_unlock(&efx->mac_lock);
723 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
724 struct ethtool_pauseparam *pause)
726 struct efx_nic *efx = netdev_priv(net_dev);
728 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
729 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
730 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
734 const struct ethtool_ops efx_ethtool_ops = {
735 .get_settings = efx_ethtool_get_settings,
736 .set_settings = efx_ethtool_set_settings,
737 .get_drvinfo = efx_ethtool_get_drvinfo,
738 .nway_reset = efx_ethtool_nway_reset,
739 .get_link = efx_ethtool_get_link,
740 .get_eeprom_len = efx_ethtool_get_eeprom_len,
741 .get_eeprom = efx_ethtool_get_eeprom,
742 .set_eeprom = efx_ethtool_set_eeprom,
743 .get_coalesce = efx_ethtool_get_coalesce,
744 .set_coalesce = efx_ethtool_set_coalesce,
745 .get_pauseparam = efx_ethtool_get_pauseparam,
746 .set_pauseparam = efx_ethtool_set_pauseparam,
747 .get_rx_csum = efx_ethtool_get_rx_csum,
748 .set_rx_csum = efx_ethtool_set_rx_csum,
749 .get_tx_csum = ethtool_op_get_tx_csum,
750 .set_tx_csum = ethtool_op_set_tx_csum,
751 .get_sg = ethtool_op_get_sg,
752 .set_sg = ethtool_op_set_sg,
753 .get_tso = ethtool_op_get_tso,
754 .set_tso = ethtool_op_set_tso,
755 .get_flags = ethtool_op_get_flags,
756 .set_flags = ethtool_op_set_flags,
757 .get_sset_count = efx_ethtool_get_sset_count,
758 .self_test = efx_ethtool_self_test,
759 .get_strings = efx_ethtool_get_strings,
760 .phys_id = efx_ethtool_phys_id,
761 .get_ethtool_stats = efx_ethtool_get_stats,