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"
23 struct ethtool_string
{
24 char name
[ETH_GSTRING_LEN
];
27 struct efx_ethtool_stat
{
30 EFX_ETHTOOL_STAT_SOURCE_mac_stats
,
31 EFX_ETHTOOL_STAT_SOURCE_nic
,
32 EFX_ETHTOOL_STAT_SOURCE_channel
35 u64(*get_stat
) (void *field
); /* Reader function */
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) { \
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, \
50 static u64
efx_get_uint_stat(void *field
)
52 return *(unsigned int *)field
;
55 static u64
efx_get_ulong_stat(void *field
)
57 return *(unsigned long *)field
;
60 static u64
efx_get_u64_stat(void *field
)
62 return *(u64
*) field
;
65 static u64
efx_get_atomic_stat(void *field
)
67 return atomic_read((atomic_t
*) field
);
70 #define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
71 EFX_ETHTOOL_STAT(field, mac_stats, field, \
72 unsigned long, efx_get_ulong_stat)
74 #define EFX_ETHTOOL_U64_MAC_STAT(field) \
75 EFX_ETHTOOL_STAT(field, mac_stats, field, \
76 u64, efx_get_u64_stat)
78 #define EFX_ETHTOOL_UINT_NIC_STAT(name) \
79 EFX_ETHTOOL_STAT(name, nic, n_##name, \
80 unsigned int, efx_get_uint_stat)
82 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
83 EFX_ETHTOOL_STAT(field, nic, field, \
84 atomic_t, efx_get_atomic_stat)
86 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
87 EFX_ETHTOOL_STAT(field, channel, n_##field, \
88 unsigned int, efx_get_uint_stat)
90 static 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_frm_trunc
),
159 /* Number of ethtool statistics */
160 #define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
162 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
164 /**************************************************************************
168 **************************************************************************
171 /* Identify device by flashing LEDs */
172 static int efx_ethtool_phys_id(struct net_device
*net_dev
, u32 count
)
174 struct efx_nic
*efx
= netdev_priv(net_dev
);
177 falcon_board(efx
)->type
->set_id_led(efx
, EFX_LED_ON
);
178 schedule_timeout_interruptible(HZ
/ 2);
180 falcon_board(efx
)->type
->set_id_led(efx
, EFX_LED_OFF
);
181 schedule_timeout_interruptible(HZ
/ 2);
182 } while (!signal_pending(current
) && --count
!= 0);
184 falcon_board(efx
)->type
->set_id_led(efx
, EFX_LED_DEFAULT
);
188 /* This must be called with rtnl_lock held. */
189 int efx_ethtool_get_settings(struct net_device
*net_dev
,
190 struct ethtool_cmd
*ecmd
)
192 struct efx_nic
*efx
= netdev_priv(net_dev
);
194 mutex_lock(&efx
->mac_lock
);
195 efx
->phy_op
->get_settings(efx
, ecmd
);
196 mutex_unlock(&efx
->mac_lock
);
198 /* Falcon GMAC does not support 1000Mbps HD */
199 ecmd
->supported
&= ~SUPPORTED_1000baseT_Half
;
204 /* This must be called with rtnl_lock held. */
205 int efx_ethtool_set_settings(struct net_device
*net_dev
,
206 struct ethtool_cmd
*ecmd
)
208 struct efx_nic
*efx
= netdev_priv(net_dev
);
211 /* Falcon GMAC does not support 1000Mbps HD */
212 if (ecmd
->speed
== SPEED_1000
&& ecmd
->duplex
!= DUPLEX_FULL
) {
213 EFX_LOG(efx
, "rejecting unsupported 1000Mbps HD"
218 mutex_lock(&efx
->mac_lock
);
219 rc
= efx
->phy_op
->set_settings(efx
, ecmd
);
220 mutex_unlock(&efx
->mac_lock
);
222 efx_reconfigure_port(efx
);
227 static void efx_ethtool_get_drvinfo(struct net_device
*net_dev
,
228 struct ethtool_drvinfo
*info
)
230 struct efx_nic
*efx
= netdev_priv(net_dev
);
232 strlcpy(info
->driver
, EFX_DRIVER_NAME
, sizeof(info
->driver
));
233 strlcpy(info
->version
, EFX_DRIVER_VERSION
, sizeof(info
->version
));
234 strlcpy(info
->bus_info
, pci_name(efx
->pci_dev
), sizeof(info
->bus_info
));
238 * efx_fill_test - fill in an individual self-test entry
239 * @test_index: Index of the test
240 * @strings: Ethtool strings, or %NULL
241 * @data: Ethtool test results, or %NULL
242 * @test: Pointer to test result (used only if data != %NULL)
243 * @unit_format: Unit name format (e.g. "chan\%d")
244 * @unit_id: Unit id (e.g. 0 for "chan0")
245 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
246 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
248 * Fill in an individual self-test entry.
250 static void efx_fill_test(unsigned int test_index
,
251 struct ethtool_string
*strings
, u64
*data
,
252 int *test
, const char *unit_format
, int unit_id
,
253 const char *test_format
, const char *test_id
)
255 struct ethtool_string unit_str
, test_str
;
257 /* Fill data value, if applicable */
259 data
[test_index
] = *test
;
261 /* Fill string, if applicable */
263 if (strchr(unit_format
, '%'))
264 snprintf(unit_str
.name
, sizeof(unit_str
.name
),
265 unit_format
, unit_id
);
267 strcpy(unit_str
.name
, unit_format
);
268 snprintf(test_str
.name
, sizeof(test_str
.name
),
269 test_format
, test_id
);
270 snprintf(strings
[test_index
].name
,
271 sizeof(strings
[test_index
].name
),
272 "%-6s %-24s", unit_str
.name
, test_str
.name
);
276 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
277 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
278 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
279 #define EFX_LOOPBACK_NAME(_mode, _counter) \
280 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
283 * efx_fill_loopback_test - fill in a block of loopback self-test entries
285 * @lb_tests: Efx loopback self-test results structure
286 * @mode: Loopback test mode
287 * @test_index: Starting index of the test
288 * @strings: Ethtool strings, or %NULL
289 * @data: Ethtool test results, or %NULL
291 static int efx_fill_loopback_test(struct efx_nic
*efx
,
292 struct efx_loopback_self_tests
*lb_tests
,
293 enum efx_loopback_mode mode
,
294 unsigned int test_index
,
295 struct ethtool_string
*strings
, u64
*data
)
297 struct efx_tx_queue
*tx_queue
;
299 efx_for_each_tx_queue(tx_queue
, efx
) {
300 efx_fill_test(test_index
++, strings
, data
,
301 &lb_tests
->tx_sent
[tx_queue
->queue
],
302 EFX_TX_QUEUE_NAME(tx_queue
),
303 EFX_LOOPBACK_NAME(mode
, "tx_sent"));
304 efx_fill_test(test_index
++, strings
, data
,
305 &lb_tests
->tx_done
[tx_queue
->queue
],
306 EFX_TX_QUEUE_NAME(tx_queue
),
307 EFX_LOOPBACK_NAME(mode
, "tx_done"));
309 efx_fill_test(test_index
++, strings
, data
,
312 EFX_LOOPBACK_NAME(mode
, "rx_good"));
313 efx_fill_test(test_index
++, strings
, data
,
316 EFX_LOOPBACK_NAME(mode
, "rx_bad"));
322 * efx_ethtool_fill_self_tests - get self-test details
324 * @tests: Efx self-test results structure, or %NULL
325 * @strings: Ethtool strings, or %NULL
326 * @data: Ethtool test results, or %NULL
328 static int efx_ethtool_fill_self_tests(struct efx_nic
*efx
,
329 struct efx_self_tests
*tests
,
330 struct ethtool_string
*strings
,
333 struct efx_channel
*channel
;
334 unsigned int n
= 0, i
;
335 enum efx_loopback_mode mode
;
337 efx_fill_test(n
++, strings
, data
, &tests
->mdio
,
338 "core", 0, "mdio", NULL
);
339 efx_fill_test(n
++, strings
, data
, &tests
->nvram
,
340 "core", 0, "nvram", NULL
);
341 efx_fill_test(n
++, strings
, data
, &tests
->interrupt
,
342 "core", 0, "interrupt", NULL
);
345 efx_for_each_channel(channel
, efx
) {
346 efx_fill_test(n
++, strings
, data
,
347 &tests
->eventq_dma
[channel
->channel
],
348 EFX_CHANNEL_NAME(channel
),
350 efx_fill_test(n
++, strings
, data
,
351 &tests
->eventq_int
[channel
->channel
],
352 EFX_CHANNEL_NAME(channel
),
354 efx_fill_test(n
++, strings
, data
,
355 &tests
->eventq_poll
[channel
->channel
],
356 EFX_CHANNEL_NAME(channel
),
357 "eventq.poll", NULL
);
360 efx_fill_test(n
++, strings
, data
, &tests
->registers
,
361 "core", 0, "registers", NULL
);
363 for (i
= 0; i
< efx
->phy_op
->num_tests
; i
++)
364 efx_fill_test(n
++, strings
, data
, &tests
->phy
[i
],
365 "phy", 0, efx
->phy_op
->test_names
[i
], NULL
);
368 for (mode
= LOOPBACK_NONE
; mode
<= LOOPBACK_TEST_MAX
; mode
++) {
369 if (!(efx
->loopback_modes
& (1 << mode
)))
371 n
= efx_fill_loopback_test(efx
,
372 &tests
->loopback
[mode
], mode
, n
,
379 static int efx_ethtool_get_sset_count(struct net_device
*net_dev
,
382 switch (string_set
) {
384 return EFX_ETHTOOL_NUM_STATS
;
386 return efx_ethtool_fill_self_tests(netdev_priv(net_dev
),
393 static void efx_ethtool_get_strings(struct net_device
*net_dev
,
394 u32 string_set
, u8
*strings
)
396 struct efx_nic
*efx
= netdev_priv(net_dev
);
397 struct ethtool_string
*ethtool_strings
=
398 (struct ethtool_string
*)strings
;
401 switch (string_set
) {
403 for (i
= 0; i
< EFX_ETHTOOL_NUM_STATS
; i
++)
404 strncpy(ethtool_strings
[i
].name
,
405 efx_ethtool_stats
[i
].name
,
406 sizeof(ethtool_strings
[i
].name
));
409 efx_ethtool_fill_self_tests(efx
, NULL
,
410 ethtool_strings
, NULL
);
413 /* No other string sets */
418 static void efx_ethtool_get_stats(struct net_device
*net_dev
,
419 struct ethtool_stats
*stats
,
422 struct efx_nic
*efx
= netdev_priv(net_dev
);
423 struct efx_mac_stats
*mac_stats
= &efx
->mac_stats
;
424 struct efx_ethtool_stat
*stat
;
425 struct efx_channel
*channel
;
428 EFX_BUG_ON_PARANOID(stats
->n_stats
!= EFX_ETHTOOL_NUM_STATS
);
430 /* Update MAC and NIC statistics */
431 dev_get_stats(net_dev
);
433 /* Fill detailed statistics buffer */
434 for (i
= 0; i
< EFX_ETHTOOL_NUM_STATS
; i
++) {
435 stat
= &efx_ethtool_stats
[i
];
436 switch (stat
->source
) {
437 case EFX_ETHTOOL_STAT_SOURCE_mac_stats
:
438 data
[i
] = stat
->get_stat((void *)mac_stats
+
441 case EFX_ETHTOOL_STAT_SOURCE_nic
:
442 data
[i
] = stat
->get_stat((void *)efx
+ stat
->offset
);
444 case EFX_ETHTOOL_STAT_SOURCE_channel
:
446 efx_for_each_channel(channel
, efx
)
447 data
[i
] += stat
->get_stat((void *)channel
+
454 static int efx_ethtool_set_rx_csum(struct net_device
*net_dev
, u32 enable
)
456 struct efx_nic
*efx
= netdev_priv(net_dev
);
458 /* No way to stop the hardware doing the checks; we just
461 efx
->rx_checksum_enabled
= !!enable
;
466 static u32
efx_ethtool_get_rx_csum(struct net_device
*net_dev
)
468 struct efx_nic
*efx
= netdev_priv(net_dev
);
470 return efx
->rx_checksum_enabled
;
473 static void efx_ethtool_self_test(struct net_device
*net_dev
,
474 struct ethtool_test
*test
, u64
*data
)
476 struct efx_nic
*efx
= netdev_priv(net_dev
);
477 struct efx_self_tests efx_tests
;
482 if (efx
->state
!= STATE_RUNNING
) {
487 /* We need rx buffers and interrupts. */
488 already_up
= (efx
->net_dev
->flags
& IFF_UP
);
490 rc
= dev_open(efx
->net_dev
);
492 EFX_ERR(efx
, "failed opening device.\n");
497 memset(&efx_tests
, 0, sizeof(efx_tests
));
499 rc
= efx_selftest(efx
, &efx_tests
, test
->flags
);
502 dev_close(efx
->net_dev
);
504 EFX_LOG(efx
, "%s %sline self-tests\n",
505 rc
== 0 ? "passed" : "failed",
506 (test
->flags
& ETH_TEST_FL_OFFLINE
) ? "off" : "on");
510 /* Fill ethtool results structures */
511 efx_ethtool_fill_self_tests(efx
, &efx_tests
, NULL
, data
);
513 test
->flags
|= ETH_TEST_FL_FAILED
;
516 /* Restart autonegotiation */
517 static int efx_ethtool_nway_reset(struct net_device
*net_dev
)
519 struct efx_nic
*efx
= netdev_priv(net_dev
);
521 return mdio45_nway_restart(&efx
->mdio
);
524 static u32
efx_ethtool_get_link(struct net_device
*net_dev
)
526 struct efx_nic
*efx
= netdev_priv(net_dev
);
528 return efx
->link_state
.up
;
531 static int efx_ethtool_get_eeprom_len(struct net_device
*net_dev
)
533 struct efx_nic
*efx
= netdev_priv(net_dev
);
534 struct efx_spi_device
*spi
= efx
->spi_eeprom
;
538 return min(spi
->size
, EFX_EEPROM_BOOTCONFIG_END
) -
539 min(spi
->size
, EFX_EEPROM_BOOTCONFIG_START
);
542 static int efx_ethtool_get_eeprom(struct net_device
*net_dev
,
543 struct ethtool_eeprom
*eeprom
, u8
*buf
)
545 struct efx_nic
*efx
= netdev_priv(net_dev
);
546 struct efx_spi_device
*spi
= efx
->spi_eeprom
;
550 rc
= mutex_lock_interruptible(&efx
->spi_lock
);
553 rc
= falcon_spi_read(spi
, eeprom
->offset
+ EFX_EEPROM_BOOTCONFIG_START
,
554 eeprom
->len
, &len
, buf
);
555 mutex_unlock(&efx
->spi_lock
);
557 eeprom
->magic
= EFX_ETHTOOL_EEPROM_MAGIC
;
562 static int efx_ethtool_set_eeprom(struct net_device
*net_dev
,
563 struct ethtool_eeprom
*eeprom
, u8
*buf
)
565 struct efx_nic
*efx
= netdev_priv(net_dev
);
566 struct efx_spi_device
*spi
= efx
->spi_eeprom
;
570 if (eeprom
->magic
!= EFX_ETHTOOL_EEPROM_MAGIC
)
573 rc
= mutex_lock_interruptible(&efx
->spi_lock
);
576 rc
= falcon_spi_write(spi
, eeprom
->offset
+ EFX_EEPROM_BOOTCONFIG_START
,
577 eeprom
->len
, &len
, buf
);
578 mutex_unlock(&efx
->spi_lock
);
584 static int efx_ethtool_get_coalesce(struct net_device
*net_dev
,
585 struct ethtool_coalesce
*coalesce
)
587 struct efx_nic
*efx
= netdev_priv(net_dev
);
588 struct efx_tx_queue
*tx_queue
;
589 struct efx_channel
*channel
;
591 memset(coalesce
, 0, sizeof(*coalesce
));
593 /* Find lowest IRQ moderation across all used TX queues */
594 coalesce
->tx_coalesce_usecs_irq
= ~((u32
) 0);
595 efx_for_each_tx_queue(tx_queue
, efx
) {
596 channel
= tx_queue
->channel
;
597 if (channel
->irq_moderation
< coalesce
->tx_coalesce_usecs_irq
) {
598 if (channel
->used_flags
!= EFX_USED_BY_RX_TX
)
599 coalesce
->tx_coalesce_usecs_irq
=
600 channel
->irq_moderation
;
602 coalesce
->tx_coalesce_usecs_irq
= 0;
606 coalesce
->use_adaptive_rx_coalesce
= efx
->irq_rx_adaptive
;
607 coalesce
->rx_coalesce_usecs_irq
= efx
->irq_rx_moderation
;
609 coalesce
->tx_coalesce_usecs_irq
*= FALCON_IRQ_MOD_RESOLUTION
;
610 coalesce
->rx_coalesce_usecs_irq
*= FALCON_IRQ_MOD_RESOLUTION
;
615 /* Set coalescing parameters
616 * The difficulties occur for shared channels
618 static int efx_ethtool_set_coalesce(struct net_device
*net_dev
,
619 struct ethtool_coalesce
*coalesce
)
621 struct efx_nic
*efx
= netdev_priv(net_dev
);
622 struct efx_channel
*channel
;
623 struct efx_tx_queue
*tx_queue
;
624 unsigned tx_usecs
, rx_usecs
, adaptive
;
626 if (coalesce
->use_adaptive_tx_coalesce
)
629 if (coalesce
->rx_coalesce_usecs
|| coalesce
->tx_coalesce_usecs
) {
630 EFX_ERR(efx
, "invalid coalescing setting. "
631 "Only rx/tx_coalesce_usecs_irq are supported\n");
635 rx_usecs
= coalesce
->rx_coalesce_usecs_irq
;
636 tx_usecs
= coalesce
->tx_coalesce_usecs_irq
;
637 adaptive
= coalesce
->use_adaptive_rx_coalesce
;
639 /* If the channel is shared only allow RX parameters to be set */
640 efx_for_each_tx_queue(tx_queue
, efx
) {
641 if ((tx_queue
->channel
->used_flags
== EFX_USED_BY_RX_TX
) &&
643 EFX_ERR(efx
, "Channel is shared. "
644 "Only RX coalescing may be set\n");
649 efx_init_irq_moderation(efx
, tx_usecs
, rx_usecs
, adaptive
);
650 efx_for_each_channel(channel
, efx
)
651 falcon_set_int_moderation(channel
);
656 static int efx_ethtool_set_pauseparam(struct net_device
*net_dev
,
657 struct ethtool_pauseparam
*pause
)
659 struct efx_nic
*efx
= netdev_priv(net_dev
);
660 enum efx_fc_type wanted_fc
;
663 wanted_fc
= ((pause
->rx_pause
? EFX_FC_RX
: 0) |
664 (pause
->tx_pause
? EFX_FC_TX
: 0) |
665 (pause
->autoneg
? EFX_FC_AUTO
: 0));
667 if ((wanted_fc
& EFX_FC_TX
) && !(wanted_fc
& EFX_FC_RX
)) {
668 EFX_LOG(efx
, "Flow control unsupported: tx ON rx OFF\n");
672 if (!(efx
->phy_op
->mmds
& MDIO_DEVS_AN
) &&
673 (wanted_fc
& EFX_FC_AUTO
)) {
674 EFX_LOG(efx
, "PHY does not support flow control "
675 "autonegotiation\n");
679 /* TX flow control may automatically turn itself off if the
680 * link partner (intermittently) stops responding to pause
681 * frames. There isn't any indication that this has happened,
682 * so the best we do is leave it up to the user to spot this
683 * and fix it be cycling transmit flow control on this end. */
684 reset
= (wanted_fc
& EFX_FC_TX
) && !(efx
->wanted_fc
& EFX_FC_TX
);
685 if (EFX_WORKAROUND_11482(efx
) && reset
) {
686 if (efx_nic_rev(efx
) == EFX_REV_FALCON_B0
) {
687 /* Recover by resetting the EM block */
688 if (efx
->link_state
.up
)
689 falcon_drain_tx_fifo(efx
);
691 /* Schedule a reset to recover */
692 efx_schedule_reset(efx
, RESET_TYPE_INVISIBLE
);
696 /* Try to push the pause parameters */
697 mutex_lock(&efx
->mac_lock
);
699 efx
->wanted_fc
= wanted_fc
;
700 if (efx
->phy_op
->mmds
& MDIO_DEVS_AN
)
701 mdio45_ethtool_spauseparam_an(&efx
->mdio
, pause
);
702 __efx_reconfigure_port(efx
);
704 mutex_unlock(&efx
->mac_lock
);
709 static void efx_ethtool_get_pauseparam(struct net_device
*net_dev
,
710 struct ethtool_pauseparam
*pause
)
712 struct efx_nic
*efx
= netdev_priv(net_dev
);
714 pause
->rx_pause
= !!(efx
->wanted_fc
& EFX_FC_RX
);
715 pause
->tx_pause
= !!(efx
->wanted_fc
& EFX_FC_TX
);
716 pause
->autoneg
= !!(efx
->wanted_fc
& EFX_FC_AUTO
);
720 const struct ethtool_ops efx_ethtool_ops
= {
721 .get_settings
= efx_ethtool_get_settings
,
722 .set_settings
= efx_ethtool_set_settings
,
723 .get_drvinfo
= efx_ethtool_get_drvinfo
,
724 .nway_reset
= efx_ethtool_nway_reset
,
725 .get_link
= efx_ethtool_get_link
,
726 .get_eeprom_len
= efx_ethtool_get_eeprom_len
,
727 .get_eeprom
= efx_ethtool_get_eeprom
,
728 .set_eeprom
= efx_ethtool_set_eeprom
,
729 .get_coalesce
= efx_ethtool_get_coalesce
,
730 .set_coalesce
= efx_ethtool_set_coalesce
,
731 .get_pauseparam
= efx_ethtool_get_pauseparam
,
732 .set_pauseparam
= efx_ethtool_set_pauseparam
,
733 .get_rx_csum
= efx_ethtool_get_rx_csum
,
734 .set_rx_csum
= efx_ethtool_set_rx_csum
,
735 .get_tx_csum
= ethtool_op_get_tx_csum
,
736 .set_tx_csum
= ethtool_op_set_tx_csum
,
737 .get_sg
= ethtool_op_get_sg
,
738 .set_sg
= ethtool_op_set_sg
,
739 .get_tso
= ethtool_op_get_tso
,
740 .set_tso
= ethtool_op_set_tso
,
741 .get_flags
= ethtool_op_get_flags
,
742 .set_flags
= ethtool_op_set_flags
,
743 .get_sset_count
= efx_ethtool_get_sset_count
,
744 .self_test
= efx_ethtool_self_test
,
745 .get_strings
= efx_ethtool_get_strings
,
746 .phys_id
= efx_ethtool_phys_id
,
747 .get_ethtool_stats
= efx_ethtool_get_stats
,