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/rtnetlink.h>
14 #include "net_driver.h"
15 #include "workarounds.h"
23 const char *efx_loopback_mode_names
[] = {
24 [LOOPBACK_NONE
] = "NONE",
25 [LOOPBACK_GMAC
] = "GMAC",
26 [LOOPBACK_XGMII
] = "XGMII",
27 [LOOPBACK_XGXS
] = "XGXS",
28 [LOOPBACK_XAUI
] = "XAUI",
29 [LOOPBACK_GPHY
] = "GPHY",
30 [LOOPBACK_PHYXS
] = "PHYXS",
31 [LOOPBACK_PCS
] = "PCS",
32 [LOOPBACK_PMAPMD
] = "PMA/PMD",
33 [LOOPBACK_NETWORK
] = "NETWORK",
36 struct ethtool_string
{
37 char name
[ETH_GSTRING_LEN
];
40 struct efx_ethtool_stat
{
43 EFX_ETHTOOL_STAT_SOURCE_mac_stats
,
44 EFX_ETHTOOL_STAT_SOURCE_nic
,
45 EFX_ETHTOOL_STAT_SOURCE_channel
48 u64(*get_stat
) (void *field
); /* Reader function */
51 /* Initialiser for a struct #efx_ethtool_stat with type-checking */
52 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
53 get_stat_function) { \
55 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
56 .offset = ((((field_type *) 0) == \
57 &((struct efx_##source_name *)0)->field) ? \
58 offsetof(struct efx_##source_name, field) : \
59 offsetof(struct efx_##source_name, field)), \
60 .get_stat = get_stat_function, \
63 static u64
efx_get_uint_stat(void *field
)
65 return *(unsigned int *)field
;
68 static u64
efx_get_ulong_stat(void *field
)
70 return *(unsigned long *)field
;
73 static u64
efx_get_u64_stat(void *field
)
75 return *(u64
*) field
;
78 static u64
efx_get_atomic_stat(void *field
)
80 return atomic_read((atomic_t
*) field
);
83 #define EFX_ETHTOOL_ULONG_MAC_STAT(field) \
84 EFX_ETHTOOL_STAT(field, mac_stats, field, \
85 unsigned long, efx_get_ulong_stat)
87 #define EFX_ETHTOOL_U64_MAC_STAT(field) \
88 EFX_ETHTOOL_STAT(field, mac_stats, field, \
89 u64, efx_get_u64_stat)
91 #define EFX_ETHTOOL_UINT_NIC_STAT(name) \
92 EFX_ETHTOOL_STAT(name, nic, n_##name, \
93 unsigned int, efx_get_uint_stat)
95 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \
96 EFX_ETHTOOL_STAT(field, nic, field, \
97 atomic_t, efx_get_atomic_stat)
99 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \
100 EFX_ETHTOOL_STAT(field, channel, n_##field, \
101 unsigned int, efx_get_uint_stat)
103 static struct efx_ethtool_stat efx_ethtool_stats
[] = {
104 EFX_ETHTOOL_U64_MAC_STAT(tx_bytes
),
105 EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes
),
106 EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes
),
107 EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets
),
108 EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad
),
109 EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause
),
110 EFX_ETHTOOL_ULONG_MAC_STAT(tx_control
),
111 EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast
),
112 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast
),
113 EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast
),
114 EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64
),
115 EFX_ETHTOOL_ULONG_MAC_STAT(tx_64
),
116 EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127
),
117 EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255
),
118 EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511
),
119 EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023
),
120 EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx
),
121 EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo
),
122 EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo
),
123 EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision
),
124 EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision
),
125 EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision
),
126 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision
),
127 EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred
),
128 EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision
),
129 EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred
),
130 EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp
),
131 EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error
),
132 EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error
),
133 EFX_ETHTOOL_U64_MAC_STAT(rx_bytes
),
134 EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes
),
135 EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes
),
136 EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets
),
137 EFX_ETHTOOL_ULONG_MAC_STAT(rx_good
),
138 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad
),
139 EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause
),
140 EFX_ETHTOOL_ULONG_MAC_STAT(rx_control
),
141 EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast
),
142 EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast
),
143 EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast
),
144 EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64
),
145 EFX_ETHTOOL_ULONG_MAC_STAT(rx_64
),
146 EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127
),
147 EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255
),
148 EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511
),
149 EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023
),
150 EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx
),
151 EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo
),
152 EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo
),
153 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64
),
154 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx
),
155 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo
),
156 EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo
),
157 EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow
),
158 EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed
),
159 EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier
),
160 EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error
),
161 EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error
),
162 EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error
),
163 EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error
),
164 EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt
),
165 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset
),
166 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc
),
167 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err
),
168 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err
),
169 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc
),
172 /* Number of ethtool statistics */
173 #define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
175 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
177 /**************************************************************************
181 **************************************************************************
184 /* Identify device by flashing LEDs */
185 static int efx_ethtool_phys_id(struct net_device
*net_dev
, u32 count
)
187 struct efx_nic
*efx
= netdev_priv(net_dev
);
189 efx
->board_info
.blink(efx
, 1);
190 set_current_state(TASK_INTERRUPTIBLE
);
192 schedule_timeout(count
* HZ
);
195 efx
->board_info
.blink(efx
, 0);
199 /* This must be called with rtnl_lock held. */
200 int efx_ethtool_get_settings(struct net_device
*net_dev
,
201 struct ethtool_cmd
*ecmd
)
203 struct efx_nic
*efx
= netdev_priv(net_dev
);
205 mutex_lock(&efx
->mac_lock
);
206 efx
->phy_op
->get_settings(efx
, ecmd
);
207 mutex_unlock(&efx
->mac_lock
);
209 /* Falcon GMAC does not support 1000Mbps HD */
210 ecmd
->supported
&= ~SUPPORTED_1000baseT_Half
;
215 /* This must be called with rtnl_lock held. */
216 int efx_ethtool_set_settings(struct net_device
*net_dev
,
217 struct ethtool_cmd
*ecmd
)
219 struct efx_nic
*efx
= netdev_priv(net_dev
);
222 if (EFX_WORKAROUND_13963(efx
) && !ecmd
->autoneg
)
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
;
349 enum efx_loopback_mode mode
;
351 efx_fill_test(n
++, strings
, data
, &tests
->mii
,
352 "core", 0, "mii", 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
);
376 efx_fill_test(n
++, strings
, data
, &tests
->phy
,
377 "phy", 0, "bist", NULL
);
380 for (mode
= LOOPBACK_NONE
; mode
<= LOOPBACK_TEST_MAX
; mode
++) {
381 if (!(efx
->loopback_modes
& (1 << mode
)))
383 n
= efx_fill_loopback_test(efx
,
384 &tests
->loopback
[mode
], mode
, n
,
391 static int efx_ethtool_get_sset_count(struct net_device
*net_dev
,
394 switch (string_set
) {
396 return EFX_ETHTOOL_NUM_STATS
;
398 return efx_ethtool_fill_self_tests(netdev_priv(net_dev
),
405 static void efx_ethtool_get_strings(struct net_device
*net_dev
,
406 u32 string_set
, u8
*strings
)
408 struct efx_nic
*efx
= netdev_priv(net_dev
);
409 struct ethtool_string
*ethtool_strings
=
410 (struct ethtool_string
*)strings
;
413 switch (string_set
) {
415 for (i
= 0; i
< EFX_ETHTOOL_NUM_STATS
; i
++)
416 strncpy(ethtool_strings
[i
].name
,
417 efx_ethtool_stats
[i
].name
,
418 sizeof(ethtool_strings
[i
].name
));
421 efx_ethtool_fill_self_tests(efx
, NULL
,
422 ethtool_strings
, NULL
);
425 /* No other string sets */
430 static void efx_ethtool_get_stats(struct net_device
*net_dev
,
431 struct ethtool_stats
*stats
,
434 struct efx_nic
*efx
= netdev_priv(net_dev
);
435 struct efx_mac_stats
*mac_stats
= &efx
->mac_stats
;
436 struct efx_ethtool_stat
*stat
;
437 struct efx_channel
*channel
;
440 EFX_BUG_ON_PARANOID(stats
->n_stats
!= EFX_ETHTOOL_NUM_STATS
);
442 /* Update MAC and NIC statistics */
443 dev_get_stats(net_dev
);
445 /* Fill detailed statistics buffer */
446 for (i
= 0; i
< EFX_ETHTOOL_NUM_STATS
; i
++) {
447 stat
= &efx_ethtool_stats
[i
];
448 switch (stat
->source
) {
449 case EFX_ETHTOOL_STAT_SOURCE_mac_stats
:
450 data
[i
] = stat
->get_stat((void *)mac_stats
+
453 case EFX_ETHTOOL_STAT_SOURCE_nic
:
454 data
[i
] = stat
->get_stat((void *)efx
+ stat
->offset
);
456 case EFX_ETHTOOL_STAT_SOURCE_channel
:
458 efx_for_each_channel(channel
, efx
)
459 data
[i
] += stat
->get_stat((void *)channel
+
466 static int efx_ethtool_set_rx_csum(struct net_device
*net_dev
, u32 enable
)
468 struct efx_nic
*efx
= netdev_priv(net_dev
);
470 /* No way to stop the hardware doing the checks; we just
473 efx
->rx_checksum_enabled
= !!enable
;
478 static u32
efx_ethtool_get_rx_csum(struct net_device
*net_dev
)
480 struct efx_nic
*efx
= netdev_priv(net_dev
);
482 return efx
->rx_checksum_enabled
;
485 static void efx_ethtool_self_test(struct net_device
*net_dev
,
486 struct ethtool_test
*test
, u64
*data
)
488 struct efx_nic
*efx
= netdev_priv(net_dev
);
489 struct efx_self_tests efx_tests
;
490 int offline
, already_up
;
494 if (efx
->state
!= STATE_RUNNING
) {
499 /* We need rx buffers and interrupts. */
500 already_up
= (efx
->net_dev
->flags
& IFF_UP
);
502 rc
= dev_open(efx
->net_dev
);
504 EFX_ERR(efx
, "failed opening device.\n");
509 memset(&efx_tests
, 0, sizeof(efx_tests
));
510 offline
= (test
->flags
& ETH_TEST_FL_OFFLINE
);
512 /* Perform online self tests first */
513 rc
= efx_online_test(efx
, &efx_tests
);
517 /* Perform offline tests only if online tests passed */
519 rc
= efx_offline_test(efx
, &efx_tests
,
520 efx
->loopback_modes
);
524 dev_close(efx
->net_dev
);
526 EFX_LOG(efx
, "%s all %sline self-tests\n",
527 rc
== 0 ? "passed" : "failed", offline
? "off" : "on");
531 /* Fill ethtool results structures */
532 efx_ethtool_fill_self_tests(efx
, &efx_tests
, NULL
, data
);
534 test
->flags
|= ETH_TEST_FL_FAILED
;
537 /* Restart autonegotiation */
538 static int efx_ethtool_nway_reset(struct net_device
*net_dev
)
540 struct efx_nic
*efx
= netdev_priv(net_dev
);
542 return mii_nway_restart(&efx
->mii
);
545 static u32
efx_ethtool_get_link(struct net_device
*net_dev
)
547 struct efx_nic
*efx
= netdev_priv(net_dev
);
552 static int efx_ethtool_get_eeprom_len(struct net_device
*net_dev
)
554 struct efx_nic
*efx
= netdev_priv(net_dev
);
555 struct efx_spi_device
*spi
= efx
->spi_eeprom
;
559 return min(spi
->size
, EFX_EEPROM_BOOTCONFIG_END
) -
560 min(spi
->size
, EFX_EEPROM_BOOTCONFIG_START
);
563 static int efx_ethtool_get_eeprom(struct net_device
*net_dev
,
564 struct ethtool_eeprom
*eeprom
, u8
*buf
)
566 struct efx_nic
*efx
= netdev_priv(net_dev
);
567 struct efx_spi_device
*spi
= efx
->spi_eeprom
;
571 rc
= mutex_lock_interruptible(&efx
->spi_lock
);
574 rc
= falcon_spi_read(spi
, eeprom
->offset
+ EFX_EEPROM_BOOTCONFIG_START
,
575 eeprom
->len
, &len
, buf
);
576 mutex_unlock(&efx
->spi_lock
);
578 eeprom
->magic
= EFX_ETHTOOL_EEPROM_MAGIC
;
583 static int efx_ethtool_set_eeprom(struct net_device
*net_dev
,
584 struct ethtool_eeprom
*eeprom
, u8
*buf
)
586 struct efx_nic
*efx
= netdev_priv(net_dev
);
587 struct efx_spi_device
*spi
= efx
->spi_eeprom
;
591 if (eeprom
->magic
!= EFX_ETHTOOL_EEPROM_MAGIC
)
594 rc
= mutex_lock_interruptible(&efx
->spi_lock
);
597 rc
= falcon_spi_write(spi
, eeprom
->offset
+ EFX_EEPROM_BOOTCONFIG_START
,
598 eeprom
->len
, &len
, buf
);
599 mutex_unlock(&efx
->spi_lock
);
605 static int efx_ethtool_get_coalesce(struct net_device
*net_dev
,
606 struct ethtool_coalesce
*coalesce
)
608 struct efx_nic
*efx
= netdev_priv(net_dev
);
609 struct efx_tx_queue
*tx_queue
;
610 struct efx_rx_queue
*rx_queue
;
611 struct efx_channel
*channel
;
613 memset(coalesce
, 0, sizeof(*coalesce
));
615 /* Find lowest IRQ moderation across all used TX queues */
616 coalesce
->tx_coalesce_usecs_irq
= ~((u32
) 0);
617 efx_for_each_tx_queue(tx_queue
, efx
) {
618 channel
= tx_queue
->channel
;
619 if (channel
->irq_moderation
< coalesce
->tx_coalesce_usecs_irq
) {
620 if (channel
->used_flags
!= EFX_USED_BY_RX_TX
)
621 coalesce
->tx_coalesce_usecs_irq
=
622 channel
->irq_moderation
;
624 coalesce
->tx_coalesce_usecs_irq
= 0;
628 /* Find lowest IRQ moderation across all used RX queues */
629 coalesce
->rx_coalesce_usecs_irq
= ~((u32
) 0);
630 efx_for_each_rx_queue(rx_queue
, efx
) {
631 channel
= rx_queue
->channel
;
632 if (channel
->irq_moderation
< coalesce
->rx_coalesce_usecs_irq
)
633 coalesce
->rx_coalesce_usecs_irq
=
634 channel
->irq_moderation
;
640 /* Set coalescing parameters
641 * The difficulties occur for shared channels
643 static int efx_ethtool_set_coalesce(struct net_device
*net_dev
,
644 struct ethtool_coalesce
*coalesce
)
646 struct efx_nic
*efx
= netdev_priv(net_dev
);
647 struct efx_channel
*channel
;
648 struct efx_tx_queue
*tx_queue
;
649 unsigned tx_usecs
, rx_usecs
;
651 if (coalesce
->use_adaptive_rx_coalesce
||
652 coalesce
->use_adaptive_tx_coalesce
)
655 if (coalesce
->rx_coalesce_usecs
|| coalesce
->tx_coalesce_usecs
) {
656 EFX_ERR(efx
, "invalid coalescing setting. "
657 "Only rx/tx_coalesce_usecs_irq are supported\n");
661 rx_usecs
= coalesce
->rx_coalesce_usecs_irq
;
662 tx_usecs
= coalesce
->tx_coalesce_usecs_irq
;
664 /* If the channel is shared only allow RX parameters to be set */
665 efx_for_each_tx_queue(tx_queue
, efx
) {
666 if ((tx_queue
->channel
->used_flags
== EFX_USED_BY_RX_TX
) &&
668 EFX_ERR(efx
, "Channel is shared. "
669 "Only RX coalescing may be set\n");
674 efx_init_irq_moderation(efx
, tx_usecs
, rx_usecs
);
676 /* Reset channel to pick up new moderation value. Note that
677 * this may change the value of the irq_moderation field
678 * (e.g. to allow for hardware timer granularity).
680 efx_for_each_channel(channel
, efx
)
681 falcon_set_int_moderation(channel
);
686 static int efx_ethtool_set_pauseparam(struct net_device
*net_dev
,
687 struct ethtool_pauseparam
*pause
)
689 struct efx_nic
*efx
= netdev_priv(net_dev
);
690 enum efx_fc_type wanted_fc
;
693 wanted_fc
= ((pause
->rx_pause
? EFX_FC_RX
: 0) |
694 (pause
->tx_pause
? EFX_FC_TX
: 0) |
695 (pause
->autoneg
? EFX_FC_AUTO
: 0));
697 if ((wanted_fc
& EFX_FC_TX
) && !(wanted_fc
& EFX_FC_RX
)) {
698 EFX_LOG(efx
, "Flow control unsupported: tx ON rx OFF\n");
702 if (!(efx
->phy_op
->mmds
& DEV_PRESENT_BIT(MDIO_MMD_AN
)) &&
703 (wanted_fc
& EFX_FC_AUTO
)) {
704 EFX_LOG(efx
, "PHY does not support flow control "
705 "autonegotiation\n");
709 /* TX flow control may automatically turn itself off if the
710 * link partner (intermittently) stops responding to pause
711 * frames. There isn't any indication that this has happened,
712 * so the best we do is leave it up to the user to spot this
713 * and fix it be cycling transmit flow control on this end. */
714 reset
= (wanted_fc
& EFX_FC_TX
) && !(efx
->wanted_fc
& EFX_FC_TX
);
715 if (EFX_WORKAROUND_11482(efx
) && reset
) {
716 if (falcon_rev(efx
) >= FALCON_REV_B0
) {
717 /* Recover by resetting the EM block */
719 falcon_drain_tx_fifo(efx
);
721 /* Schedule a reset to recover */
722 efx_schedule_reset(efx
, RESET_TYPE_INVISIBLE
);
726 /* Try to push the pause parameters */
727 mutex_lock(&efx
->mac_lock
);
729 efx
->wanted_fc
= wanted_fc
;
730 mdio_clause45_set_pause(efx
);
731 __efx_reconfigure_port(efx
);
733 mutex_unlock(&efx
->mac_lock
);
738 static void efx_ethtool_get_pauseparam(struct net_device
*net_dev
,
739 struct ethtool_pauseparam
*pause
)
741 struct efx_nic
*efx
= netdev_priv(net_dev
);
743 pause
->rx_pause
= !!(efx
->wanted_fc
& EFX_FC_RX
);
744 pause
->tx_pause
= !!(efx
->wanted_fc
& EFX_FC_TX
);
745 pause
->autoneg
= !!(efx
->wanted_fc
& EFX_FC_AUTO
);
749 struct ethtool_ops efx_ethtool_ops
= {
750 .get_settings
= efx_ethtool_get_settings
,
751 .set_settings
= efx_ethtool_set_settings
,
752 .get_drvinfo
= efx_ethtool_get_drvinfo
,
753 .nway_reset
= efx_ethtool_nway_reset
,
754 .get_link
= efx_ethtool_get_link
,
755 .get_eeprom_len
= efx_ethtool_get_eeprom_len
,
756 .get_eeprom
= efx_ethtool_get_eeprom
,
757 .set_eeprom
= efx_ethtool_set_eeprom
,
758 .get_coalesce
= efx_ethtool_get_coalesce
,
759 .set_coalesce
= efx_ethtool_set_coalesce
,
760 .get_pauseparam
= efx_ethtool_get_pauseparam
,
761 .set_pauseparam
= efx_ethtool_set_pauseparam
,
762 .get_rx_csum
= efx_ethtool_get_rx_csum
,
763 .set_rx_csum
= efx_ethtool_set_rx_csum
,
764 .get_tx_csum
= ethtool_op_get_tx_csum
,
765 .set_tx_csum
= ethtool_op_set_tx_csum
,
766 .get_sg
= ethtool_op_get_sg
,
767 .set_sg
= ethtool_op_set_sg
,
768 .get_tso
= ethtool_op_get_tso
,
769 .set_tso
= ethtool_op_set_tso
,
770 .get_flags
= ethtool_op_get_flags
,
771 .set_flags
= ethtool_op_set_flags
,
772 .get_sset_count
= efx_ethtool_get_sset_count
,
773 .self_test
= efx_ethtool_self_test
,
774 .get_strings
= efx_ethtool_get_strings
,
775 .phys_id
= efx_ethtool_phys_id
,
776 .get_ethtool_stats
= efx_ethtool_get_stats
,