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sfc: Log interrupt and reset type names, not numbers
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / sfc / ethtool.c
blobd8915b95e65a5af48e3da24cbf82d0cfcef4d8d8
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_frm_trunc),
157 };
158
159 /* Number of ethtool statistics */
160 #define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
161
162 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
163
164 /**************************************************************************
165 *
166 * Ethtool operations
167 *
168 **************************************************************************
169 */
170
171 /* Identify device by flashing LEDs */
172 static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
173 {
174 struct efx_nic *efx = netdev_priv(net_dev);
175
176 do {
177 falcon_board(efx)->set_id_led(efx, EFX_LED_ON);
178 schedule_timeout_interruptible(HZ / 2);
179
180 falcon_board(efx)->set_id_led(efx, EFX_LED_OFF);
181 schedule_timeout_interruptible(HZ / 2);
182 } while (!signal_pending(current) && --count != 0);
183
184 falcon_board(efx)->set_id_led(efx, EFX_LED_DEFAULT);
185 return 0;
186 }
187
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)
191 {
192 struct efx_nic *efx = netdev_priv(net_dev);
193
194 mutex_lock(&efx->mac_lock);
195 efx->phy_op->get_settings(efx, ecmd);
196 mutex_unlock(&efx->mac_lock);
197
198 /* Falcon GMAC does not support 1000Mbps HD */
199 ecmd->supported &= ~SUPPORTED_1000baseT_Half;
200
201 return 0;
202 }
203
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)
207 {
208 struct efx_nic *efx = netdev_priv(net_dev);
209 int rc;
210
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"
214 " setting\n");
215 return -EINVAL;
216 }
217
218 mutex_lock(&efx->mac_lock);
219 rc = efx->phy_op->set_settings(efx, ecmd);
220 mutex_unlock(&efx->mac_lock);
221 if (!rc)
222 efx_reconfigure_port(efx);
223
224 return rc;
225 }
226
227 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
228 struct ethtool_drvinfo *info)
229 {
230 struct efx_nic *efx = netdev_priv(net_dev);
231
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));
235 }
236
237 /**
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")
247 *
248 * Fill in an individual self-test entry.
249 */
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)
254 {
255 struct ethtool_string unit_str, test_str;
256
257 /* Fill data value, if applicable */
258 if (data)
259 data[test_index] = *test;
260
261 /* Fill string, if applicable */
262 if (strings) {
263 if (strchr(unit_format, '%'))
264 snprintf(unit_str.name, sizeof(unit_str.name),
265 unit_format, unit_id);
266 else
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);
273 }
274 }
275
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)
281
282 /**
283 * efx_fill_loopback_test - fill in a block of loopback self-test entries
284 * @efx: Efx NIC
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
290 */
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)
296 {
297 struct efx_tx_queue *tx_queue;
298
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"));
308 }
309 efx_fill_test(test_index++, strings, data,
310 &lb_tests->rx_good,
311 "rx", 0,
312 EFX_LOOPBACK_NAME(mode, "rx_good"));
313 efx_fill_test(test_index++, strings, data,
314 &lb_tests->rx_bad,
315 "rx", 0,
316 EFX_LOOPBACK_NAME(mode, "rx_bad"));
317
318 return test_index;
319 }
320
321 /**
322 * efx_ethtool_fill_self_tests - get self-test details
323 * @efx: Efx NIC
324 * @tests: Efx self-test results structure, or %NULL
325 * @strings: Ethtool strings, or %NULL
326 * @data: Ethtool test results, or %NULL
327 */
328 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
329 struct efx_self_tests *tests,
330 struct ethtool_string *strings,
331 u64 *data)
332 {
333 struct efx_channel *channel;
334 unsigned int n = 0, i;
335 enum efx_loopback_mode mode;
336
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);
343
344 /* Event queues */
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),
349 "eventq.dma", NULL);
350 efx_fill_test(n++, strings, data,
351 &tests->eventq_int[channel->channel],
352 EFX_CHANNEL_NAME(channel),
353 "eventq.int", NULL);
354 efx_fill_test(n++, strings, data,
355 &tests->eventq_poll[channel->channel],
356 EFX_CHANNEL_NAME(channel),
357 "eventq.poll", NULL);
358 }
359
360 efx_fill_test(n++, strings, data, &tests->registers,
361 "core", 0, "registers", NULL);
362
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);
366
367 /* Loopback tests */
368 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
369 if (!(efx->loopback_modes & (1 << mode)))
370 continue;
371 n = efx_fill_loopback_test(efx,
372 &tests->loopback[mode], mode, n,
373 strings, data);
374 }
375
376 return n;
377 }
378
379 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
380 int string_set)
381 {
382 switch (string_set) {
383 case ETH_SS_STATS:
384 return EFX_ETHTOOL_NUM_STATS;
385 case ETH_SS_TEST:
386 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
387 NULL, NULL, NULL);
388 default:
389 return -EINVAL;
390 }
391 }
392
393 static void efx_ethtool_get_strings(struct net_device *net_dev,
394 u32 string_set, u8 *strings)
395 {
396 struct efx_nic *efx = netdev_priv(net_dev);
397 struct ethtool_string *ethtool_strings =
398 (struct ethtool_string *)strings;
399 int i;
400
401 switch (string_set) {
402 case ETH_SS_STATS:
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));
407 break;
408 case ETH_SS_TEST:
409 efx_ethtool_fill_self_tests(efx, NULL,
410 ethtool_strings, NULL);
411 break;
412 default:
413 /* No other string sets */
414 break;
415 }
416 }
417
418 static void efx_ethtool_get_stats(struct net_device *net_dev,
419 struct ethtool_stats *stats,
420 u64 *data)
421 {
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;
426 int i;
427
428 EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
429
430 /* Update MAC and NIC statistics */
431 dev_get_stats(net_dev);
432
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 +
439 stat->offset);
440 break;
441 case EFX_ETHTOOL_STAT_SOURCE_nic:
442 data[i] = stat->get_stat((void *)efx + stat->offset);
443 break;
444 case EFX_ETHTOOL_STAT_SOURCE_channel:
445 data[i] = 0;
446 efx_for_each_channel(channel, efx)
447 data[i] += stat->get_stat((void *)channel +
448 stat->offset);
449 break;
450 }
451 }
452 }
453
454 static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
455 {
456 struct efx_nic *efx = netdev_priv(net_dev);
457
458 /* No way to stop the hardware doing the checks; we just
459 * ignore the result.
460 */
461 efx->rx_checksum_enabled = !!enable;
462
463 return 0;
464 }
465
466 static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
467 {
468 struct efx_nic *efx = netdev_priv(net_dev);
469
470 return efx->rx_checksum_enabled;
471 }
472
473 static void efx_ethtool_self_test(struct net_device *net_dev,
474 struct ethtool_test *test, u64 *data)
475 {
476 struct efx_nic *efx = netdev_priv(net_dev);
477 struct efx_self_tests efx_tests;
478 int already_up;
479 int rc;
480
481 ASSERT_RTNL();
482 if (efx->state != STATE_RUNNING) {
483 rc = -EIO;
484 goto fail1;
485 }
486
487 /* We need rx buffers and interrupts. */
488 already_up = (efx->net_dev->flags & IFF_UP);
489 if (!already_up) {
490 rc = dev_open(efx->net_dev);
491 if (rc) {
492 EFX_ERR(efx, "failed opening device.\n");
493 goto fail2;
494 }
495 }
496
497 memset(&efx_tests, 0, sizeof(efx_tests));
498
499 rc = efx_selftest(efx, &efx_tests, test->flags);
500
501 if (!already_up)
502 dev_close(efx->net_dev);
503
504 EFX_LOG(efx, "%s %sline self-tests\n",
505 rc == 0 ? "passed" : "failed",
506 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
507
508 fail2:
509 fail1:
510 /* Fill ethtool results structures */
511 efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
512 if (rc)
513 test->flags |= ETH_TEST_FL_FAILED;
514 }
515
516 /* Restart autonegotiation */
517 static int efx_ethtool_nway_reset(struct net_device *net_dev)
518 {
519 struct efx_nic *efx = netdev_priv(net_dev);
520
521 return mdio45_nway_restart(&efx->mdio);
522 }
523
524 static u32 efx_ethtool_get_link(struct net_device *net_dev)
525 {
526 struct efx_nic *efx = netdev_priv(net_dev);
527
528 return efx->link_state.up;
529 }
530
531 static int efx_ethtool_get_eeprom_len(struct net_device *net_dev)
532 {
533 struct efx_nic *efx = netdev_priv(net_dev);
534 struct efx_spi_device *spi = efx->spi_eeprom;
535
536 if (!spi)
537 return 0;
538 return min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
539 min(spi->size, EFX_EEPROM_BOOTCONFIG_START);
540 }
541
542 static int efx_ethtool_get_eeprom(struct net_device *net_dev,
543 struct ethtool_eeprom *eeprom, u8 *buf)
544 {
545 struct efx_nic *efx = netdev_priv(net_dev);
546 struct efx_spi_device *spi = efx->spi_eeprom;
547 size_t len;
548 int rc;
549
550 rc = mutex_lock_interruptible(&efx->spi_lock);
551 if (rc)
552 return rc;
553 rc = falcon_spi_read(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
554 eeprom->len, &len, buf);
555 mutex_unlock(&efx->spi_lock);
556
557 eeprom->magic = EFX_ETHTOOL_EEPROM_MAGIC;
558 eeprom->len = len;
559 return rc;
560 }
561
562 static int efx_ethtool_set_eeprom(struct net_device *net_dev,
563 struct ethtool_eeprom *eeprom, u8 *buf)
564 {
565 struct efx_nic *efx = netdev_priv(net_dev);
566 struct efx_spi_device *spi = efx->spi_eeprom;
567 size_t len;
568 int rc;
569
570 if (eeprom->magic != EFX_ETHTOOL_EEPROM_MAGIC)
571 return -EINVAL;
572
573 rc = mutex_lock_interruptible(&efx->spi_lock);
574 if (rc)
575 return rc;
576 rc = falcon_spi_write(spi, eeprom->offset + EFX_EEPROM_BOOTCONFIG_START,
577 eeprom->len, &len, buf);
578 mutex_unlock(&efx->spi_lock);
579
580 eeprom->len = len;
581 return rc;
582 }
583
584 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
585 struct ethtool_coalesce *coalesce)
586 {
587 struct efx_nic *efx = netdev_priv(net_dev);
588 struct efx_tx_queue *tx_queue;
589 struct efx_channel *channel;
590
591 memset(coalesce, 0, sizeof(*coalesce));
592
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;
601 else
602 coalesce->tx_coalesce_usecs_irq = 0;
603 }
604 }
605
606 coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
607 coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
608
609 coalesce->tx_coalesce_usecs_irq *= FALCON_IRQ_MOD_RESOLUTION;
610 coalesce->rx_coalesce_usecs_irq *= FALCON_IRQ_MOD_RESOLUTION;
611
612 return 0;
613 }
614
615 /* Set coalescing parameters
616 * The difficulties occur for shared channels
617 */
618 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
619 struct ethtool_coalesce *coalesce)
620 {
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;
625
626 if (coalesce->use_adaptive_tx_coalesce)
627 return -EOPNOTSUPP;
628
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");
632 return -EOPNOTSUPP;
633 }
634
635 rx_usecs = coalesce->rx_coalesce_usecs_irq;
636 tx_usecs = coalesce->tx_coalesce_usecs_irq;
637 adaptive = coalesce->use_adaptive_rx_coalesce;
638
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) &&
642 tx_usecs) {
643 EFX_ERR(efx, "Channel is shared. "
644 "Only RX coalescing may be set\n");
645 return -EOPNOTSUPP;
646 }
647 }
648
649 efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
650 efx_for_each_channel(channel, efx)
651 falcon_set_int_moderation(channel);
652
653 return 0;
654 }
655
656 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
657 struct ethtool_pauseparam *pause)
658 {
659 struct efx_nic *efx = netdev_priv(net_dev);
660 enum efx_fc_type wanted_fc;
661 bool reset;
662
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));
666
667 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
668 EFX_LOG(efx, "Flow control unsupported: tx ON rx OFF\n");
669 return -EINVAL;
670 }
671
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");
676 return -EINVAL;
677 }
678
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 (falcon_rev(efx) >= FALCON_REV_B0) {
687 /* Recover by resetting the EM block */
688 if (efx->link_state.up)
689 falcon_drain_tx_fifo(efx);
690 } else {
691 /* Schedule a reset to recover */
692 efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
693 }
694 }
695
696 /* Try to push the pause parameters */
697 mutex_lock(&efx->mac_lock);
698
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);
703
704 mutex_unlock(&efx->mac_lock);
705
706 return 0;
707 }
708
709 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
710 struct ethtool_pauseparam *pause)
711 {
712 struct efx_nic *efx = netdev_priv(net_dev);
713
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);
717 }
718
719
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,
748 };
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree