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sfc: Move Falcon NIC operations to efx_nic_type
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / sfc / ethtool.c
blob49e0aed920d362532bc44b293e9c5bf2167c64af
1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2008 Solarflare Communications Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation, incorporated herein by reference.
9 */
10
11 #include <linux/netdevice.h>
12 #include <linux/ethtool.h>
13 #include <linux/mdio.h>
14 #include <linux/rtnetlink.h>
15 #include "net_driver.h"
16 #include "workarounds.h"
17 #include "selftest.h"
18 #include "efx.h"
19 #include "falcon.h"
20 #include "spi.h"
21 #include "mdio_10g.h"
22
23 struct ethtool_string {
24 char name[ETH_GSTRING_LEN];
25 };
26
27 struct efx_ethtool_stat {
28 const char *name;
29 enum {
30 EFX_ETHTOOL_STAT_SOURCE_mac_stats,
31 EFX_ETHTOOL_STAT_SOURCE_nic,
32 EFX_ETHTOOL_STAT_SOURCE_channel
33 } source;
34 unsigned offset;
35 u64(*get_stat) (void *field); /* Reader function */
36 };
37
38 /* Initialiser for a struct #efx_ethtool_stat with type-checking */
39 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
40 get_stat_function) { \
41 .name = #stat_name, \
42 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \
43 .offset = ((((field_type *) 0) == \
44 &((struct efx_##source_name *)0)->field) ? \
45 offsetof(struct efx_##source_name, field) : \
46 offsetof(struct efx_##source_name, field)), \
47 .get_stat = get_stat_function, \
48 }
49
50 static u64 efx_get_uint_stat(void *field)
51 {
52 return *(unsigned int *)field;
53 }
54
55 static u64 efx_get_ulong_stat(void *field)
56 {
57 return *(unsigned long *)field;
58 }
59
60 static u64 efx_get_u64_stat(void *field)
61 {
62 return *(u64 *) field;
63 }
64
65 static 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
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_mcast_mismatch),
157 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
158 };
159
160 /* Number of ethtool statistics */
161 #define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
162
163 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
164
165 /**************************************************************************
166 *
167 * Ethtool operations
168 *
169 **************************************************************************
170 */
171
172 /* Identify device by flashing LEDs */
173 static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
174 {
175 struct efx_nic *efx = netdev_priv(net_dev);
176
177 do {
178 falcon_board(efx)->type->set_id_led(efx, EFX_LED_ON);
179 schedule_timeout_interruptible(HZ / 2);
180
181 falcon_board(efx)->type->set_id_led(efx, EFX_LED_OFF);
182 schedule_timeout_interruptible(HZ / 2);
183 } while (!signal_pending(current) && --count != 0);
184
185 falcon_board(efx)->type->set_id_led(efx, EFX_LED_DEFAULT);
186 return 0;
187 }
188
189 /* This must be called with rtnl_lock held. */
190 int efx_ethtool_get_settings(struct net_device *net_dev,
191 struct ethtool_cmd *ecmd)
192 {
193 struct efx_nic *efx = netdev_priv(net_dev);
194
195 mutex_lock(&efx->mac_lock);
196 efx->phy_op->get_settings(efx, ecmd);
197 mutex_unlock(&efx->mac_lock);
198
199 /* Falcon GMAC does not support 1000Mbps HD */
200 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
201
202 return 0;
203 }
204
205 /* This must be called with rtnl_lock held. */
206 int efx_ethtool_set_settings(struct net_device *net_dev,
207 struct ethtool_cmd *ecmd)
208 {
209 struct efx_nic *efx = netdev_priv(net_dev);
210 int rc;
211
212 /* Falcon GMAC does not support 1000Mbps HD */
213 if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
214 EFX_LOG(efx, "rejecting unsupported 1000Mbps HD"
215 " setting\n");
216 return -EINVAL;
217 }
218
219 mutex_lock(&efx->mac_lock);
220 rc = efx->phy_op->set_settings(efx, ecmd);
221 mutex_unlock(&efx->mac_lock);
222 if (!rc)
223 efx_reconfigure_port(efx);
224
225 return rc;
226 }
227
228 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
229 struct ethtool_drvinfo *info)
230 {
231 struct efx_nic *efx = netdev_priv(net_dev);
232
233 strlcpy(info->driver, EFX_DRIVER_NAME, sizeof(info->driver));
234 strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
235 strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
236 }
237
238 /**
239 * efx_fill_test - fill in an individual self-test entry
240 * @test_index: Index of the test
241 * @strings: Ethtool strings, or %NULL
242 * @data: Ethtool test results, or %NULL
243 * @test: Pointer to test result (used only if data != %NULL)
244 * @unit_format: Unit name format (e.g. "chan\%d")
245 * @unit_id: Unit id (e.g. 0 for "chan0")
246 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")
247 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
248 *
249 * Fill in an individual self-test entry.
250 */
251 static void efx_fill_test(unsigned int test_index,
252 struct ethtool_string *strings, u64 *data,
253 int *test, const char *unit_format, int unit_id,
254 const char *test_format, const char *test_id)
255 {
256 struct ethtool_string unit_str, test_str;
257
258 /* Fill data value, if applicable */
259 if (data)
260 data[test_index] = *test;
261
262 /* Fill string, if applicable */
263 if (strings) {
264 if (strchr(unit_format, '%'))
265 snprintf(unit_str.name, sizeof(unit_str.name),
266 unit_format, unit_id);
267 else
268 strcpy(unit_str.name, unit_format);
269 snprintf(test_str.name, sizeof(test_str.name),
270 test_format, test_id);
271 snprintf(strings[test_index].name,
272 sizeof(strings[test_index].name),
273 "%-6s %-24s", unit_str.name, test_str.name);
274 }
275 }
276
277 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
278 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
279 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
280 #define EFX_LOOPBACK_NAME(_mode, _counter) \
281 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
282
283 /**
284 * efx_fill_loopback_test - fill in a block of loopback self-test entries
285 * @efx: Efx NIC
286 * @lb_tests: Efx loopback self-test results structure
287 * @mode: Loopback test mode
288 * @test_index: Starting index of the test
289 * @strings: Ethtool strings, or %NULL
290 * @data: Ethtool test results, or %NULL
291 */
292 static int efx_fill_loopback_test(struct efx_nic *efx,
293 struct efx_loopback_self_tests *lb_tests,
294 enum efx_loopback_mode mode,
295 unsigned int test_index,
296 struct ethtool_string *strings, u64 *data)
297 {
298 struct efx_tx_queue *tx_queue;
299
300 efx_for_each_tx_queue(tx_queue, efx) {
301 efx_fill_test(test_index++, strings, data,
302 &lb_tests->tx_sent[tx_queue->queue],
303 EFX_TX_QUEUE_NAME(tx_queue),
304 EFX_LOOPBACK_NAME(mode, "tx_sent"));
305 efx_fill_test(test_index++, strings, data,
306 &lb_tests->tx_done[tx_queue->queue],
307 EFX_TX_QUEUE_NAME(tx_queue),
308 EFX_LOOPBACK_NAME(mode, "tx_done"));
309 }
310 efx_fill_test(test_index++, strings, data,
311 &lb_tests->rx_good,
312 "rx", 0,
313 EFX_LOOPBACK_NAME(mode, "rx_good"));
314 efx_fill_test(test_index++, strings, data,
315 &lb_tests->rx_bad,
316 "rx", 0,
317 EFX_LOOPBACK_NAME(mode, "rx_bad"));
318
319 return test_index;
320 }
321
322 /**
323 * efx_ethtool_fill_self_tests - get self-test details
324 * @efx: Efx NIC
325 * @tests: Efx self-test results structure, or %NULL
326 * @strings: Ethtool strings, or %NULL
327 * @data: Ethtool test results, or %NULL
328 */
329 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
330 struct efx_self_tests *tests,
331 struct ethtool_string *strings,
332 u64 *data)
333 {
334 struct efx_channel *channel;
335 unsigned int n = 0, i;
336 enum efx_loopback_mode mode;
337
338 efx_fill_test(n++, strings, data, &tests->mdio,
339 "core", 0, "mdio", NULL);
340 efx_fill_test(n++, strings, data, &tests->nvram,
341 "core", 0, "nvram", NULL);
342 efx_fill_test(n++, strings, data, &tests->interrupt,
343 "core", 0, "interrupt", NULL);
344
345 /* Event queues */
346 efx_for_each_channel(channel, efx) {
347 efx_fill_test(n++, strings, data,
348 &tests->eventq_dma[channel->channel],
349 EFX_CHANNEL_NAME(channel),
350 "eventq.dma", NULL);
351 efx_fill_test(n++, strings, data,
352 &tests->eventq_int[channel->channel],
353 EFX_CHANNEL_NAME(channel),
354 "eventq.int", NULL);
355 efx_fill_test(n++, strings, data,
356 &tests->eventq_poll[channel->channel],
357 EFX_CHANNEL_NAME(channel),
358 "eventq.poll", NULL);
359 }
360
361 efx_fill_test(n++, strings, data, &tests->registers,
362 "core", 0, "registers", NULL);
363
364 for (i = 0; i < efx->phy_op->num_tests; i++)
365 efx_fill_test(n++, strings, data, &tests->phy[i],
366 "phy", 0, efx->phy_op->test_names[i], NULL);
367
368 /* Loopback tests */
369 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
370 if (!(efx->loopback_modes & (1 << mode)))
371 continue;
372 n = efx_fill_loopback_test(efx,
373 &tests->loopback[mode], mode, n,
374 strings, data);
375 }
376
377 return n;
378 }
379
380 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
381 int string_set)
382 {
383 switch (string_set) {
384 case ETH_SS_STATS:
385 return EFX_ETHTOOL_NUM_STATS;
386 case ETH_SS_TEST:
387 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
388 NULL, NULL, NULL);
389 default:
390 return -EINVAL;
391 }
392 }
393
394 static void efx_ethtool_get_strings(struct net_device *net_dev,
395 u32 string_set, u8 *strings)
396 {
397 struct efx_nic *efx = netdev_priv(net_dev);
398 struct ethtool_string *ethtool_strings =
399 (struct ethtool_string *)strings;
400 int i;
401
402 switch (string_set) {
403 case ETH_SS_STATS:
404 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
405 strncpy(ethtool_strings[i].name,
406 efx_ethtool_stats[i].name,
407 sizeof(ethtool_strings[i].name));
408 break;
409 case ETH_SS_TEST:
410 efx_ethtool_fill_self_tests(efx, NULL,
411 ethtool_strings, NULL);
412 break;
413 default:
414 /* No other string sets */
415 break;
416 }
417 }
418
419 static void efx_ethtool_get_stats(struct net_device *net_dev,
420 struct ethtool_stats *stats,
421 u64 *data)
422 {
423 struct efx_nic *efx = netdev_priv(net_dev);
424 struct efx_mac_stats *mac_stats = &efx->mac_stats;
425 struct efx_ethtool_stat *stat;
426 struct efx_channel *channel;
427 int i;
428
429 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
430
431 /* Update MAC and NIC statistics */
432 dev_get_stats(net_dev);
433
434 /* Fill detailed statistics buffer */
435 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
436 stat = &efx_ethtool_stats[i];
437 switch (stat->source) {
438 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
439 data[i] = stat->get_stat((void *)mac_stats +
440 stat->offset);
441 break;
442 case EFX_ETHTOOL_STAT_SOURCE_nic:
443 data[i] = stat->get_stat((void *)efx + stat->offset);
444 break;
445 case EFX_ETHTOOL_STAT_SOURCE_channel:
446 data[i] = 0;
447 efx_for_each_channel(channel, efx)
448 data[i] += stat->get_stat((void *)channel +
449 stat->offset);
450 break;
451 }
452 }
453 }
454
455 static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
456 {
457 struct efx_nic *efx = netdev_priv(net_dev);
458
459 /* No way to stop the hardware doing the checks; we just
460 * ignore the result.
461 */
462 efx->rx_checksum_enabled = !!enable;
463
464 return 0;
465 }
466
467 static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
468 {
469 struct efx_nic *efx = netdev_priv(net_dev);
470
471 return efx->rx_checksum_enabled;
472 }
473
474 static void efx_ethtool_self_test(struct net_device *net_dev,
475 struct ethtool_test *test, u64 *data)
476 {
477 struct efx_nic *efx = netdev_priv(net_dev);
478 struct efx_self_tests efx_tests;
479 int already_up;
480 int rc;
481
482 ASSERT_RTNL();
483 if (efx->state != STATE_RUNNING) {
484 rc = -EIO;
485 goto fail1;
486 }
487
488 /* We need rx buffers and interrupts. */
489 already_up = (efx->net_dev->flags & IFF_UP);
490 if (!already_up) {
491 rc = dev_open(efx->net_dev);
492 if (rc) {
493 EFX_ERR(efx, "failed opening device.\n");
494 goto fail2;
495 }
496 }
497
498 memset(&efx_tests, 0, sizeof(efx_tests));
499
500 rc = efx_selftest(efx, &efx_tests, test->flags);
501
502 if (!already_up)
503 dev_close(efx->net_dev);
504
505 EFX_LOG(efx, "%s %sline self-tests\n",
506 rc == 0 ? "passed" : "failed",
507 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
508
509 fail2:
510 fail1:
511 /* Fill ethtool results structures */
512 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
513 if (rc)
514 test->flags |= ETH_TEST_FL_FAILED;
515 }
516
517 /* Restart autonegotiation */
518 static int efx_ethtool_nway_reset(struct net_device *net_dev)
519 {
520 struct efx_nic *efx = netdev_priv(net_dev);
521
522 return mdio45_nway_restart(&efx->mdio);
523 }
524
525 static u32 efx_ethtool_get_link(struct net_device *net_dev)
526 {
527 struct efx_nic *efx = netdev_priv(net_dev);
528
529 return efx->link_state.up;
530 }
531
532 static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
533 {
534 struct efx_nic *efx = netdev_priv(net_dev);
535 struct efx_spi_device *spi = efx->spi_eeprom;
536
537 if (!spi)
538 return 0;
539 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
540 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
541 }
542
543 static int efx_ethtool_get_eeprom(struct net_device *net_dev,
544 struct ethtool_eeprom *eeprom, u8 *buf)
545 {
546 struct efx_nic *efx = netdev_priv(net_dev);
547 struct efx_spi_device *spi = efx->spi_eeprom;
548 size_t len;
549 int rc;
550
551 rc = mutex_lock_interruptible(&efx->spi_lock);
552 if (rc)
553 return rc;
554 rc = falcon_spi_read(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
555 eeprom->len, &len, buf);
556 mutex_unlock(&efx->spi_lock);
557
558 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
559 eeprom->len = len;
560 return rc;
561 }
562
563 static int efx_ethtool_set_eeprom(struct net_device *net_dev,
564 struct ethtool_eeprom *eeprom, u8 *buf)
565 {
566 struct efx_nic *efx = netdev_priv(net_dev);
567 struct efx_spi_device *spi = efx->spi_eeprom;
568 size_t len;
569 int rc;
570
571 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
572 return -EINVAL;
573
574 rc = mutex_lock_interruptible(&efx->spi_lock);
575 if (rc)
576 return rc;
577 rc = falcon_spi_write(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
578 eeprom->len, &len, buf);
579 mutex_unlock(&efx->spi_lock);
580
581 eeprom->len = len;
582 return rc;
583 }
584
585 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
586 struct ethtool_coalesce *coalesce)
587 {
588 struct efx_nic *efx = netdev_priv(net_dev);
589 struct efx_tx_queue *tx_queue;
590 struct efx_channel *channel;
591
592 memset(coalesce, 0, sizeof(*coalesce));
593
594 /* Find lowest IRQ moderation across all used TX queues */
595 coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
596 efx_for_each_tx_queue(tx_queue, efx) {
597 channel = tx_queue->channel;
598 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
599 if (channel->used_flags != EFX_USED_BY_RX_TX)
600 coalesce->tx_coalesce_usecs_irq =
601 channel->irq_moderation;
602 else
603 coalesce->tx_coalesce_usecs_irq = 0;
604 }
605 }
606
607 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
608 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
609
610 coalesce->tx_coalesce_usecs_irq *= FALCON_IRQ_MOD_RESOLUTION;
611 coalesce->rx_coalesce_usecs_irq *= FALCON_IRQ_MOD_RESOLUTION;
612
613 return 0;
614 }
615
616 /* Set coalescing parameters
617 * The difficulties occur for shared channels
618 */
619 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
620 struct ethtool_coalesce *coalesce)
621 {
622 struct efx_nic *efx = netdev_priv(net_dev);
623 struct efx_channel *channel;
624 struct efx_tx_queue *tx_queue;
625 unsigned tx_usecs, rx_usecs, adaptive;
626
627 if (coalesce->use_adaptive_tx_coalesce)
628 return -EOPNOTSUPP;
629
630 if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
631 EFX_ERR(efx, "invalid coalescing setting. "
632 "Only rx/tx_coalesce_usecs_irq are supported\n");
633 return -EOPNOTSUPP;
634 }
635
636 rx_usecs = coalesce->rx_coalesce_usecs_irq;
637 tx_usecs = coalesce->tx_coalesce_usecs_irq;
638 adaptive = coalesce->use_adaptive_rx_coalesce;
639
640 /* If the channel is shared only allow RX parameters to be set */
641 efx_for_each_tx_queue(tx_queue, efx) {
642 if ((tx_queue->channel->used_flags == EFX_USED_BY_RX_TX) &&
643 tx_usecs) {
644 EFX_ERR(efx, "Channel is shared. "
645 "Only RX coalescing may be set\n");
646 return -EOPNOTSUPP;
647 }
648 }
649
650 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
651 efx_for_each_channel(channel, efx)
652 efx->type->push_irq_moderation(channel);
653
654 return 0;
655 }
656
657 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
658 struct ethtool_pauseparam *pause)
659 {
660 struct efx_nic *efx = netdev_priv(net_dev);
661 enum efx_fc_type wanted_fc;
662 bool reset;
663
664 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
665 (pause->tx_pause ? EFX_FC_TX : 0) |
666 (pause->autoneg ? EFX_FC_AUTO : 0));
667
668 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
669 EFX_LOG(efx, "Flow control unsupported: tx ON rx OFF\n");
670 return -EINVAL;
671 }
672
673 if (!(efx->phy_op->mmds & MDIO_DEVS_AN) &&
674 (wanted_fc & EFX_FC_AUTO)) {
675 EFX_LOG(efx, "PHY does not support flow control "
676 "autonegotiation\n");
677 return -EINVAL;
678 }
679
680 /* TX flow control may automatically turn itself off if the
681 * link partner (intermittently) stops responding to pause
682 * frames. There isn't any indication that this has happened,
683 * so the best we do is leave it up to the user to spot this
684 * and fix it be cycling transmit flow control on this end. */
685 reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
686 if (EFX_WORKAROUND_11482(efx) && reset) {
687 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
688 /* Recover by resetting the EM block */
689 if (efx->link_state.up)
690 falcon_drain_tx_fifo(efx);
691 } else {
692 /* Schedule a reset to recover */
693 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
694 }
695 }
696
697 /* Try to push the pause parameters */
698 mutex_lock(&efx->mac_lock);
699
700 efx->wanted_fc = wanted_fc;
701 if (efx->phy_op->mmds & MDIO_DEVS_AN)
702 mdio45_ethtool_spauseparam_an(&efx->mdio, pause);
703 __efx_reconfigure_port(efx);
704
705 mutex_unlock(&efx->mac_lock);
706
707 return 0;
708 }
709
710 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
711 struct ethtool_pauseparam *pause)
712 {
713 struct efx_nic *efx = netdev_priv(net_dev);
714
715 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
716 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
717 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
718 }
719
720
721 const struct ethtool_ops efx_ethtool_ops = {
722 .get_settings = efx_ethtool_get_settings,
723 .set_settings = efx_ethtool_set_settings,
724 .get_drvinfo = efx_ethtool_get_drvinfo,
725 .nway_reset = efx_ethtool_nway_reset,
726 .get_link = efx_ethtool_get_link,
727 .get_eeprom_len = efx_ethtool_get_eeprom_len,
728 .get_eeprom = efx_ethtool_get_eeprom,
729 .set_eeprom = efx_ethtool_set_eeprom,
730 .get_coalesce = efx_ethtool_get_coalesce,
731 .set_coalesce = efx_ethtool_set_coalesce,
732 .get_pauseparam = efx_ethtool_get_pauseparam,
733 .set_pauseparam = efx_ethtool_set_pauseparam,
734 .get_rx_csum = efx_ethtool_get_rx_csum,
735 .set_rx_csum = efx_ethtool_set_rx_csum,
736 .get_tx_csum = ethtool_op_get_tx_csum,
737 .set_tx_csum = ethtool_op_set_tx_csum,
738 .get_sg = ethtool_op_get_sg,
739 .set_sg = ethtool_op_set_sg,
740 .get_tso = ethtool_op_get_tso,
741 .set_tso = ethtool_op_set_tso,
742 .get_flags = ethtool_op_get_flags,
743 .set_flags = ethtool_op_set_flags,
744 .get_sset_count = efx_ethtool_get_sset_count,
745 .self_test = efx_ethtool_self_test,
746 .get_strings = efx_ethtool_get_strings,
747 .phys_id = efx_ethtool_phys_id,
748 .get_ethtool_stats = efx_ethtool_get_stats,
749 };
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree