sfc: Read MC firmware version when requested through ethtool
[linux-2.6.git] / drivers / net / sfc / ethtool.c
1 /****************************************************************************
2  * Driver for Solarflare Solarstorm network controllers and boards
3  * Copyright 2005-2006 Fen Systems Ltd.
4  * Copyright 2006-2009 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/rtnetlink.h>
14 #include <linux/in.h>
15 #include "net_driver.h"
16 #include "workarounds.h"
17 #include "selftest.h"
18 #include "efx.h"
19 #include "filter.h"
20 #include "nic.h"
21
22 struct ethtool_string {
23         char name[ETH_GSTRING_LEN];
24 };
25
26 struct efx_ethtool_stat {
27         const char *name;
28         enum {
29                 EFX_ETHTOOL_STAT_SOURCE_mac_stats,
30                 EFX_ETHTOOL_STAT_SOURCE_nic,
31                 EFX_ETHTOOL_STAT_SOURCE_channel
32         } source;
33         unsigned offset;
34         u64(*get_stat) (void *field); /* Reader function */
35 };
36
37 /* Initialiser for a struct #efx_ethtool_stat with type-checking */
38 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
39                                 get_stat_function) {                    \
40         .name = #stat_name,                                             \
41         .source = EFX_ETHTOOL_STAT_SOURCE_##source_name,                \
42         .offset = ((((field_type *) 0) ==                               \
43                       &((struct efx_##source_name *)0)->field) ?        \
44                     offsetof(struct efx_##source_name, field) :         \
45                     offsetof(struct efx_##source_name, field)),         \
46         .get_stat = get_stat_function,                                  \
47 }
48
49 static u64 efx_get_uint_stat(void *field)
50 {
51         return *(unsigned int *)field;
52 }
53
54 static u64 efx_get_ulong_stat(void *field)
55 {
56         return *(unsigned long *)field;
57 }
58
59 static u64 efx_get_u64_stat(void *field)
60 {
61         return *(u64 *) field;
62 }
63
64 static u64 efx_get_atomic_stat(void *field)
65 {
66         return atomic_read((atomic_t *) field);
67 }
68
69 #define EFX_ETHTOOL_ULONG_MAC_STAT(field)                       \
70         EFX_ETHTOOL_STAT(field, mac_stats, field,               \
71                           unsigned long, efx_get_ulong_stat)
72
73 #define EFX_ETHTOOL_U64_MAC_STAT(field)                         \
74         EFX_ETHTOOL_STAT(field, mac_stats, field,               \
75                           u64, efx_get_u64_stat)
76
77 #define EFX_ETHTOOL_UINT_NIC_STAT(name)                         \
78         EFX_ETHTOOL_STAT(name, nic, n_##name,                   \
79                          unsigned int, efx_get_uint_stat)
80
81 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field)                \
82         EFX_ETHTOOL_STAT(field, nic, field,                     \
83                          atomic_t, efx_get_atomic_stat)
84
85 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field)                    \
86         EFX_ETHTOOL_STAT(field, channel, n_##field,             \
87                          unsigned int, efx_get_uint_stat)
88
89 static struct efx_ethtool_stat efx_ethtool_stats[] = {
90         EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
91         EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
92         EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
93         EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
94         EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
95         EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
96         EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
97         EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
98         EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
99         EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
100         EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
101         EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
102         EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
103         EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
104         EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
105         EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
106         EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
107         EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
108         EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
109         EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
110         EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
111         EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
112         EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
113         EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
114         EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
115         EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
116         EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
117         EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
118         EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
119         EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
120         EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
121         EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
122         EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
123         EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
124         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
125         EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
126         EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
127         EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
128         EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
129         EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
130         EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
131         EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
132         EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
133         EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
134         EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
135         EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
136         EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
137         EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
138         EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
139         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
140         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
141         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
142         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
143         EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
144         EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
145         EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
146         EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
147         EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
148         EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
149         EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
150         EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
151         EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
152         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
153         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
154         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
155         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
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                 efx->type->set_id_led(efx, EFX_LED_ON);
178                 schedule_timeout_interruptible(HZ / 2);
179
180                 efx->type->set_id_led(efx, EFX_LED_OFF);
181                 schedule_timeout_interruptible(HZ / 2);
182         } while (!signal_pending(current) && --count != 0);
183
184         efx->type->set_id_led(efx, EFX_LED_DEFAULT);
185         return 0;
186 }
187
188 /* This must be called with rtnl_lock held. */
189 static 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         struct efx_link_state *link_state = &efx->link_state;
194
195         mutex_lock(&efx->mac_lock);
196         efx->phy_op->get_settings(efx, ecmd);
197         mutex_unlock(&efx->mac_lock);
198
199         /* GMAC does not support 1000Mbps HD */
200         ecmd->supported &= ~SUPPORTED_1000baseT_Half;
201         /* Both MACs support pause frames (bidirectional and respond-only) */
202         ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
203
204         if (LOOPBACK_INTERNAL(efx)) {
205                 ecmd->speed = link_state->speed;
206                 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
207         }
208
209         return 0;
210 }
211
212 /* This must be called with rtnl_lock held. */
213 static int efx_ethtool_set_settings(struct net_device *net_dev,
214                                     struct ethtool_cmd *ecmd)
215 {
216         struct efx_nic *efx = netdev_priv(net_dev);
217         int rc;
218
219         /* GMAC does not support 1000Mbps HD */
220         if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
221                 netif_dbg(efx, drv, efx->net_dev,
222                           "rejecting unsupported 1000Mbps HD setting\n");
223                 return -EINVAL;
224         }
225
226         mutex_lock(&efx->mac_lock);
227         rc = efx->phy_op->set_settings(efx, ecmd);
228         mutex_unlock(&efx->mac_lock);
229         return rc;
230 }
231
232 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
233                                     struct ethtool_drvinfo *info)
234 {
235         struct efx_nic *efx = netdev_priv(net_dev);
236
237         strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
238         strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
239         if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
240                 efx_mcdi_print_fwver(efx, info->fw_version,
241                                      sizeof(info->fw_version));
242         strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
243 }
244
245 static int efx_ethtool_get_regs_len(struct net_device *net_dev)
246 {
247         return efx_nic_get_regs_len(netdev_priv(net_dev));
248 }
249
250 static void efx_ethtool_get_regs(struct net_device *net_dev,
251                                  struct ethtool_regs *regs, void *buf)
252 {
253         struct efx_nic *efx = netdev_priv(net_dev);
254
255         regs->version = efx->type->revision;
256         efx_nic_get_regs(efx, buf);
257 }
258
259 static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
260 {
261         struct efx_nic *efx = netdev_priv(net_dev);
262         return efx->msg_enable;
263 }
264
265 static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
266 {
267         struct efx_nic *efx = netdev_priv(net_dev);
268         efx->msg_enable = msg_enable;
269 }
270
271 /**
272  * efx_fill_test - fill in an individual self-test entry
273  * @test_index:         Index of the test
274  * @strings:            Ethtool strings, or %NULL
275  * @data:               Ethtool test results, or %NULL
276  * @test:               Pointer to test result (used only if data != %NULL)
277  * @unit_format:        Unit name format (e.g. "chan\%d")
278  * @unit_id:            Unit id (e.g. 0 for "chan0")
279  * @test_format:        Test name format (e.g. "loopback.\%s.tx.sent")
280  * @test_id:            Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
281  *
282  * Fill in an individual self-test entry.
283  */
284 static void efx_fill_test(unsigned int test_index,
285                           struct ethtool_string *strings, u64 *data,
286                           int *test, const char *unit_format, int unit_id,
287                           const char *test_format, const char *test_id)
288 {
289         struct ethtool_string unit_str, test_str;
290
291         /* Fill data value, if applicable */
292         if (data)
293                 data[test_index] = *test;
294
295         /* Fill string, if applicable */
296         if (strings) {
297                 if (strchr(unit_format, '%'))
298                         snprintf(unit_str.name, sizeof(unit_str.name),
299                                  unit_format, unit_id);
300                 else
301                         strcpy(unit_str.name, unit_format);
302                 snprintf(test_str.name, sizeof(test_str.name),
303                          test_format, test_id);
304                 snprintf(strings[test_index].name,
305                          sizeof(strings[test_index].name),
306                          "%-6s %-24s", unit_str.name, test_str.name);
307         }
308 }
309
310 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
311 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
312 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
313 #define EFX_LOOPBACK_NAME(_mode, _counter)                      \
314         "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
315
316 /**
317  * efx_fill_loopback_test - fill in a block of loopback self-test entries
318  * @efx:                Efx NIC
319  * @lb_tests:           Efx loopback self-test results structure
320  * @mode:               Loopback test mode
321  * @test_index:         Starting index of the test
322  * @strings:            Ethtool strings, or %NULL
323  * @data:               Ethtool test results, or %NULL
324  */
325 static int efx_fill_loopback_test(struct efx_nic *efx,
326                                   struct efx_loopback_self_tests *lb_tests,
327                                   enum efx_loopback_mode mode,
328                                   unsigned int test_index,
329                                   struct ethtool_string *strings, u64 *data)
330 {
331         struct efx_channel *channel = efx_get_channel(efx, 0);
332         struct efx_tx_queue *tx_queue;
333
334         efx_for_each_channel_tx_queue(tx_queue, channel) {
335                 efx_fill_test(test_index++, strings, data,
336                               &lb_tests->tx_sent[tx_queue->queue],
337                               EFX_TX_QUEUE_NAME(tx_queue),
338                               EFX_LOOPBACK_NAME(mode, "tx_sent"));
339                 efx_fill_test(test_index++, strings, data,
340                               &lb_tests->tx_done[tx_queue->queue],
341                               EFX_TX_QUEUE_NAME(tx_queue),
342                               EFX_LOOPBACK_NAME(mode, "tx_done"));
343         }
344         efx_fill_test(test_index++, strings, data,
345                       &lb_tests->rx_good,
346                       "rx", 0,
347                       EFX_LOOPBACK_NAME(mode, "rx_good"));
348         efx_fill_test(test_index++, strings, data,
349                       &lb_tests->rx_bad,
350                       "rx", 0,
351                       EFX_LOOPBACK_NAME(mode, "rx_bad"));
352
353         return test_index;
354 }
355
356 /**
357  * efx_ethtool_fill_self_tests - get self-test details
358  * @efx:                Efx NIC
359  * @tests:              Efx self-test results structure, or %NULL
360  * @strings:            Ethtool strings, or %NULL
361  * @data:               Ethtool test results, or %NULL
362  */
363 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
364                                        struct efx_self_tests *tests,
365                                        struct ethtool_string *strings,
366                                        u64 *data)
367 {
368         struct efx_channel *channel;
369         unsigned int n = 0, i;
370         enum efx_loopback_mode mode;
371
372         efx_fill_test(n++, strings, data, &tests->phy_alive,
373                       "phy", 0, "alive", NULL);
374         efx_fill_test(n++, strings, data, &tests->nvram,
375                       "core", 0, "nvram", NULL);
376         efx_fill_test(n++, strings, data, &tests->interrupt,
377                       "core", 0, "interrupt", NULL);
378
379         /* Event queues */
380         efx_for_each_channel(channel, efx) {
381                 efx_fill_test(n++, strings, data,
382                               &tests->eventq_dma[channel->channel],
383                               EFX_CHANNEL_NAME(channel),
384                               "eventq.dma", NULL);
385                 efx_fill_test(n++, strings, data,
386                               &tests->eventq_int[channel->channel],
387                               EFX_CHANNEL_NAME(channel),
388                               "eventq.int", NULL);
389                 efx_fill_test(n++, strings, data,
390                               &tests->eventq_poll[channel->channel],
391                               EFX_CHANNEL_NAME(channel),
392                               "eventq.poll", NULL);
393         }
394
395         efx_fill_test(n++, strings, data, &tests->registers,
396                       "core", 0, "registers", NULL);
397
398         if (efx->phy_op->run_tests != NULL) {
399                 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
400
401                 for (i = 0; true; ++i) {
402                         const char *name;
403
404                         EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
405                         name = efx->phy_op->test_name(efx, i);
406                         if (name == NULL)
407                                 break;
408
409                         efx_fill_test(n++, strings, data, &tests->phy_ext[i],
410                                       "phy", 0, name, NULL);
411                 }
412         }
413
414         /* Loopback tests */
415         for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
416                 if (!(efx->loopback_modes & (1 << mode)))
417                         continue;
418                 n = efx_fill_loopback_test(efx,
419                                            &tests->loopback[mode], mode, n,
420                                            strings, data);
421         }
422
423         return n;
424 }
425
426 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
427                                       int string_set)
428 {
429         switch (string_set) {
430         case ETH_SS_STATS:
431                 return EFX_ETHTOOL_NUM_STATS;
432         case ETH_SS_TEST:
433                 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
434                                                    NULL, NULL, NULL);
435         default:
436                 return -EINVAL;
437         }
438 }
439
440 static void efx_ethtool_get_strings(struct net_device *net_dev,
441                                     u32 string_set, u8 *strings)
442 {
443         struct efx_nic *efx = netdev_priv(net_dev);
444         struct ethtool_string *ethtool_strings =
445                 (struct ethtool_string *)strings;
446         int i;
447
448         switch (string_set) {
449         case ETH_SS_STATS:
450                 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
451                         strncpy(ethtool_strings[i].name,
452                                 efx_ethtool_stats[i].name,
453                                 sizeof(ethtool_strings[i].name));
454                 break;
455         case ETH_SS_TEST:
456                 efx_ethtool_fill_self_tests(efx, NULL,
457                                             ethtool_strings, NULL);
458                 break;
459         default:
460                 /* No other string sets */
461                 break;
462         }
463 }
464
465 static void efx_ethtool_get_stats(struct net_device *net_dev,
466                                   struct ethtool_stats *stats,
467                                   u64 *data)
468 {
469         struct efx_nic *efx = netdev_priv(net_dev);
470         struct efx_mac_stats *mac_stats = &efx->mac_stats;
471         struct efx_ethtool_stat *stat;
472         struct efx_channel *channel;
473         struct rtnl_link_stats64 temp;
474         int i;
475
476         EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
477
478         /* Update MAC and NIC statistics */
479         dev_get_stats(net_dev, &temp);
480
481         /* Fill detailed statistics buffer */
482         for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
483                 stat = &efx_ethtool_stats[i];
484                 switch (stat->source) {
485                 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
486                         data[i] = stat->get_stat((void *)mac_stats +
487                                                  stat->offset);
488                         break;
489                 case EFX_ETHTOOL_STAT_SOURCE_nic:
490                         data[i] = stat->get_stat((void *)efx + stat->offset);
491                         break;
492                 case EFX_ETHTOOL_STAT_SOURCE_channel:
493                         data[i] = 0;
494                         efx_for_each_channel(channel, efx)
495                                 data[i] += stat->get_stat((void *)channel +
496                                                           stat->offset);
497                         break;
498                 }
499         }
500 }
501
502 static int efx_ethtool_set_tso(struct net_device *net_dev, u32 enable)
503 {
504         struct efx_nic *efx __attribute__ ((unused)) = netdev_priv(net_dev);
505         u32 features;
506
507         features = NETIF_F_TSO;
508         if (efx->type->offload_features & NETIF_F_V6_CSUM)
509                 features |= NETIF_F_TSO6;
510
511         if (enable)
512                 net_dev->features |= features;
513         else
514                 net_dev->features &= ~features;
515
516         return 0;
517 }
518
519 static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
520 {
521         struct efx_nic *efx = netdev_priv(net_dev);
522         u32 features = efx->type->offload_features & NETIF_F_ALL_CSUM;
523
524         if (enable)
525                 net_dev->features |= features;
526         else
527                 net_dev->features &= ~features;
528
529         return 0;
530 }
531
532 static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
533 {
534         struct efx_nic *efx = netdev_priv(net_dev);
535
536         /* No way to stop the hardware doing the checks; we just
537          * ignore the result.
538          */
539         efx->rx_checksum_enabled = !!enable;
540
541         return 0;
542 }
543
544 static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
545 {
546         struct efx_nic *efx = netdev_priv(net_dev);
547
548         return efx->rx_checksum_enabled;
549 }
550
551 static int efx_ethtool_set_flags(struct net_device *net_dev, u32 data)
552 {
553         struct efx_nic *efx = netdev_priv(net_dev);
554         u32 supported = (efx->type->offload_features &
555                          (ETH_FLAG_RXHASH | ETH_FLAG_NTUPLE));
556         int rc;
557
558         rc = ethtool_op_set_flags(net_dev, data, supported);
559         if (rc)
560                 return rc;
561
562         if (!(data & ETH_FLAG_NTUPLE))
563                 efx_filter_clear_rx(efx, EFX_FILTER_PRI_MANUAL);
564
565         return 0;
566 }
567
568 static void efx_ethtool_self_test(struct net_device *net_dev,
569                                   struct ethtool_test *test, u64 *data)
570 {
571         struct efx_nic *efx = netdev_priv(net_dev);
572         struct efx_self_tests efx_tests;
573         int already_up;
574         int rc;
575
576         ASSERT_RTNL();
577         if (efx->state != STATE_RUNNING) {
578                 rc = -EIO;
579                 goto fail1;
580         }
581
582         netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
583                    (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
584
585         /* We need rx buffers and interrupts. */
586         already_up = (efx->net_dev->flags & IFF_UP);
587         if (!already_up) {
588                 rc = dev_open(efx->net_dev);
589                 if (rc) {
590                         netif_err(efx, drv, efx->net_dev,
591                                   "failed opening device.\n");
592                         goto fail2;
593                 }
594         }
595
596         memset(&efx_tests, 0, sizeof(efx_tests));
597
598         rc = efx_selftest(efx, &efx_tests, test->flags);
599
600         if (!already_up)
601                 dev_close(efx->net_dev);
602
603         netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
604                    rc == 0 ? "passed" : "failed",
605                    (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");
606
607  fail2:
608  fail1:
609         /* Fill ethtool results structures */
610         efx_ethtool_fill_self_tests(efx, &efx_tests, NULL, data);
611         if (rc)
612                 test->flags |= ETH_TEST_FL_FAILED;
613 }
614
615 /* Restart autonegotiation */
616 static int efx_ethtool_nway_reset(struct net_device *net_dev)
617 {
618         struct efx_nic *efx = netdev_priv(net_dev);
619
620         return mdio45_nway_restart(&efx->mdio);
621 }
622
623 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
624                                     struct ethtool_coalesce *coalesce)
625 {
626         struct efx_nic *efx = netdev_priv(net_dev);
627         struct efx_channel *channel;
628
629         memset(coalesce, 0, sizeof(*coalesce));
630
631         /* Find lowest IRQ moderation across all used TX queues */
632         coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
633         efx_for_each_channel(channel, efx) {
634                 if (!efx_channel_has_tx_queues(channel))
635                         continue;
636                 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
637                         if (channel->channel < efx->n_rx_channels)
638                                 coalesce->tx_coalesce_usecs_irq =
639                                         channel->irq_moderation;
640                         else
641                                 coalesce->tx_coalesce_usecs_irq = 0;
642                 }
643         }
644
645         coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
646         coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
647
648         coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
649         coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
650
651         return 0;
652 }
653
654 /* Set coalescing parameters
655  * The difficulties occur for shared channels
656  */
657 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
658                                     struct ethtool_coalesce *coalesce)
659 {
660         struct efx_nic *efx = netdev_priv(net_dev);
661         struct efx_channel *channel;
662         unsigned tx_usecs, rx_usecs, adaptive;
663
664         if (coalesce->use_adaptive_tx_coalesce)
665                 return -EOPNOTSUPP;
666
667         if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
668                 netif_err(efx, drv, efx->net_dev, "invalid coalescing setting. "
669                           "Only rx/tx_coalesce_usecs_irq are supported\n");
670                 return -EOPNOTSUPP;
671         }
672
673         rx_usecs = coalesce->rx_coalesce_usecs_irq;
674         tx_usecs = coalesce->tx_coalesce_usecs_irq;
675         adaptive = coalesce->use_adaptive_rx_coalesce;
676
677         /* If the channel is shared only allow RX parameters to be set */
678         efx_for_each_channel(channel, efx) {
679                 if (efx_channel_has_rx_queue(channel) &&
680                     efx_channel_has_tx_queues(channel) &&
681                     tx_usecs) {
682                         netif_err(efx, drv, efx->net_dev, "Channel is shared. "
683                                   "Only RX coalescing may be set\n");
684                         return -EOPNOTSUPP;
685                 }
686         }
687
688         efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
689         efx_for_each_channel(channel, efx)
690                 efx->type->push_irq_moderation(channel);
691
692         return 0;
693 }
694
695 static void efx_ethtool_get_ringparam(struct net_device *net_dev,
696                                       struct ethtool_ringparam *ring)
697 {
698         struct efx_nic *efx = netdev_priv(net_dev);
699
700         ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
701         ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
702         ring->rx_mini_max_pending = 0;
703         ring->rx_jumbo_max_pending = 0;
704         ring->rx_pending = efx->rxq_entries;
705         ring->tx_pending = efx->txq_entries;
706         ring->rx_mini_pending = 0;
707         ring->rx_jumbo_pending = 0;
708 }
709
710 static int efx_ethtool_set_ringparam(struct net_device *net_dev,
711                                      struct ethtool_ringparam *ring)
712 {
713         struct efx_nic *efx = netdev_priv(net_dev);
714
715         if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
716             ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
717             ring->tx_pending > EFX_MAX_DMAQ_SIZE)
718                 return -EINVAL;
719
720         if (ring->rx_pending < EFX_MIN_RING_SIZE ||
721             ring->tx_pending < EFX_MIN_RING_SIZE) {
722                 netif_err(efx, drv, efx->net_dev,
723                           "TX and RX queues cannot be smaller than %ld\n",
724                           EFX_MIN_RING_SIZE);
725                 return -EINVAL;
726         }
727
728         return efx_realloc_channels(efx, ring->rx_pending, ring->tx_pending);
729 }
730
731 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
732                                       struct ethtool_pauseparam *pause)
733 {
734         struct efx_nic *efx = netdev_priv(net_dev);
735         enum efx_fc_type wanted_fc, old_fc;
736         u32 old_adv;
737         bool reset;
738         int rc = 0;
739
740         mutex_lock(&efx->mac_lock);
741
742         wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
743                      (pause->tx_pause ? EFX_FC_TX : 0) |
744                      (pause->autoneg ? EFX_FC_AUTO : 0));
745
746         if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
747                 netif_dbg(efx, drv, efx->net_dev,
748                           "Flow control unsupported: tx ON rx OFF\n");
749                 rc = -EINVAL;
750                 goto out;
751         }
752
753         if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
754                 netif_dbg(efx, drv, efx->net_dev,
755                           "Autonegotiation is disabled\n");
756                 rc = -EINVAL;
757                 goto out;
758         }
759
760         /* TX flow control may automatically turn itself off if the
761          * link partner (intermittently) stops responding to pause
762          * frames. There isn't any indication that this has happened,
763          * so the best we do is leave it up to the user to spot this
764          * and fix it be cycling transmit flow control on this end. */
765         reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
766         if (EFX_WORKAROUND_11482(efx) && reset) {
767                 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
768                         /* Recover by resetting the EM block */
769                         falcon_stop_nic_stats(efx);
770                         falcon_drain_tx_fifo(efx);
771                         efx->mac_op->reconfigure(efx);
772                         falcon_start_nic_stats(efx);
773                 } else {
774                         /* Schedule a reset to recover */
775                         efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
776                 }
777         }
778
779         old_adv = efx->link_advertising;
780         old_fc = efx->wanted_fc;
781         efx_link_set_wanted_fc(efx, wanted_fc);
782         if (efx->link_advertising != old_adv ||
783             (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
784                 rc = efx->phy_op->reconfigure(efx);
785                 if (rc) {
786                         netif_err(efx, drv, efx->net_dev,
787                                   "Unable to advertise requested flow "
788                                   "control setting\n");
789                         goto out;
790                 }
791         }
792
793         /* Reconfigure the MAC. The PHY *may* generate a link state change event
794          * if the user just changed the advertised capabilities, but there's no
795          * harm doing this twice */
796         efx->mac_op->reconfigure(efx);
797
798 out:
799         mutex_unlock(&efx->mac_lock);
800
801         return rc;
802 }
803
804 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
805                                        struct ethtool_pauseparam *pause)
806 {
807         struct efx_nic *efx = netdev_priv(net_dev);
808
809         pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
810         pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
811         pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
812 }
813
814
815 static void efx_ethtool_get_wol(struct net_device *net_dev,
816                                 struct ethtool_wolinfo *wol)
817 {
818         struct efx_nic *efx = netdev_priv(net_dev);
819         return efx->type->get_wol(efx, wol);
820 }
821
822
823 static int efx_ethtool_set_wol(struct net_device *net_dev,
824                                struct ethtool_wolinfo *wol)
825 {
826         struct efx_nic *efx = netdev_priv(net_dev);
827         return efx->type->set_wol(efx, wol->wolopts);
828 }
829
830 static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
831 {
832         struct efx_nic *efx = netdev_priv(net_dev);
833         enum reset_type method;
834         enum {
835                 ETH_RESET_EFX_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
836                                            ETH_RESET_OFFLOAD | ETH_RESET_MAC)
837         };
838
839         /* Check for minimal reset flags */
840         if ((*flags & ETH_RESET_EFX_INVISIBLE) != ETH_RESET_EFX_INVISIBLE)
841                 return -EINVAL;
842         *flags ^= ETH_RESET_EFX_INVISIBLE;
843         method = RESET_TYPE_INVISIBLE;
844
845         if (*flags & ETH_RESET_PHY) {
846                 *flags ^= ETH_RESET_PHY;
847                 method = RESET_TYPE_ALL;
848         }
849
850         if ((*flags & efx->type->reset_world_flags) ==
851             efx->type->reset_world_flags) {
852                 *flags ^= efx->type->reset_world_flags;
853                 method = RESET_TYPE_WORLD;
854         }
855
856         return efx_reset(efx, method);
857 }
858
859 static int
860 efx_ethtool_get_rxnfc(struct net_device *net_dev,
861                       struct ethtool_rxnfc *info, void *rules __always_unused)
862 {
863         struct efx_nic *efx = netdev_priv(net_dev);
864
865         switch (info->cmd) {
866         case ETHTOOL_GRXRINGS:
867                 info->data = efx->n_rx_channels;
868                 return 0;
869
870         case ETHTOOL_GRXFH: {
871                 unsigned min_revision = 0;
872
873                 info->data = 0;
874                 switch (info->flow_type) {
875                 case TCP_V4_FLOW:
876                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
877                         /* fall through */
878                 case UDP_V4_FLOW:
879                 case SCTP_V4_FLOW:
880                 case AH_ESP_V4_FLOW:
881                 case IPV4_FLOW:
882                         info->data |= RXH_IP_SRC | RXH_IP_DST;
883                         min_revision = EFX_REV_FALCON_B0;
884                         break;
885                 case TCP_V6_FLOW:
886                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
887                         /* fall through */
888                 case UDP_V6_FLOW:
889                 case SCTP_V6_FLOW:
890                 case AH_ESP_V6_FLOW:
891                 case IPV6_FLOW:
892                         info->data |= RXH_IP_SRC | RXH_IP_DST;
893                         min_revision = EFX_REV_SIENA_A0;
894                         break;
895                 default:
896                         break;
897                 }
898                 if (efx_nic_rev(efx) < min_revision)
899                         info->data = 0;
900                 return 0;
901         }
902
903         default:
904                 return -EOPNOTSUPP;
905         }
906 }
907
908 static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
909                                      struct ethtool_rx_ntuple *ntuple)
910 {
911         struct efx_nic *efx = netdev_priv(net_dev);
912         struct ethtool_tcpip4_spec *ip_entry = &ntuple->fs.h_u.tcp_ip4_spec;
913         struct ethtool_tcpip4_spec *ip_mask = &ntuple->fs.m_u.tcp_ip4_spec;
914         struct ethhdr *mac_entry = &ntuple->fs.h_u.ether_spec;
915         struct ethhdr *mac_mask = &ntuple->fs.m_u.ether_spec;
916         struct efx_filter_spec filter;
917         int rc;
918
919         /* Range-check action */
920         if (ntuple->fs.action < ETHTOOL_RXNTUPLE_ACTION_CLEAR ||
921             ntuple->fs.action >= (s32)efx->n_rx_channels)
922                 return -EINVAL;
923
924         if (~ntuple->fs.data_mask)
925                 return -EINVAL;
926
927         efx_filter_init_rx(&filter, EFX_FILTER_PRI_MANUAL, 0,
928                            (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP) ?
929                            0xfff : ntuple->fs.action);
930
931         switch (ntuple->fs.flow_type) {
932         case TCP_V4_FLOW:
933         case UDP_V4_FLOW: {
934                 u8 proto = (ntuple->fs.flow_type == TCP_V4_FLOW ?
935                             IPPROTO_TCP : IPPROTO_UDP);
936
937                 /* Must match all of destination, */
938                 if (ip_mask->ip4dst | ip_mask->pdst)
939                         return -EINVAL;
940                 /* all or none of source, */
941                 if ((ip_mask->ip4src | ip_mask->psrc) &&
942                     ((__force u32)~ip_mask->ip4src |
943                      (__force u16)~ip_mask->psrc))
944                         return -EINVAL;
945                 /* and nothing else */
946                 if ((u8)~ip_mask->tos | (u16)~ntuple->fs.vlan_tag_mask)
947                         return -EINVAL;
948
949                 if (!ip_mask->ip4src)
950                         rc = efx_filter_set_ipv4_full(&filter, proto,
951                                                       ip_entry->ip4dst,
952                                                       ip_entry->pdst,
953                                                       ip_entry->ip4src,
954                                                       ip_entry->psrc);
955                 else
956                         rc = efx_filter_set_ipv4_local(&filter, proto,
957                                                        ip_entry->ip4dst,
958                                                        ip_entry->pdst);
959                 if (rc)
960                         return rc;
961                 break;
962         }
963
964         case ETHER_FLOW:
965                 /* Must match all of destination, */
966                 if (!is_zero_ether_addr(mac_mask->h_dest))
967                         return -EINVAL;
968                 /* all or none of VID, */
969                 if (ntuple->fs.vlan_tag_mask != 0xf000 &&
970                     ntuple->fs.vlan_tag_mask != 0xffff)
971                         return -EINVAL;
972                 /* and nothing else */
973                 if (!is_broadcast_ether_addr(mac_mask->h_source) ||
974                     mac_mask->h_proto != htons(0xffff))
975                         return -EINVAL;
976
977                 rc = efx_filter_set_eth_local(
978                         &filter,
979                         (ntuple->fs.vlan_tag_mask == 0xf000) ?
980                         ntuple->fs.vlan_tag : EFX_FILTER_VID_UNSPEC,
981                         mac_entry->h_dest);
982                 if (rc)
983                         return rc;
984                 break;
985
986         default:
987                 return -EINVAL;
988         }
989
990         if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_CLEAR)
991                 return efx_filter_remove_filter(efx, &filter);
992         else
993                 return efx_filter_insert_filter(efx, &filter, true);
994 }
995
996 static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
997                                       struct ethtool_rxfh_indir *indir)
998 {
999         struct efx_nic *efx = netdev_priv(net_dev);
1000         size_t copy_size =
1001                 min_t(size_t, indir->size, ARRAY_SIZE(efx->rx_indir_table));
1002
1003         if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
1004                 return -EOPNOTSUPP;
1005
1006         indir->size = ARRAY_SIZE(efx->rx_indir_table);
1007         memcpy(indir->ring_index, efx->rx_indir_table,
1008                copy_size * sizeof(indir->ring_index[0]));
1009         return 0;
1010 }
1011
1012 static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
1013                                       const struct ethtool_rxfh_indir *indir)
1014 {
1015         struct efx_nic *efx = netdev_priv(net_dev);
1016         size_t i;
1017
1018         if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
1019                 return -EOPNOTSUPP;
1020
1021         /* Validate size and indices */
1022         if (indir->size != ARRAY_SIZE(efx->rx_indir_table))
1023                 return -EINVAL;
1024         for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
1025                 if (indir->ring_index[i] >= efx->n_rx_channels)
1026                         return -EINVAL;
1027
1028         memcpy(efx->rx_indir_table, indir->ring_index,
1029                sizeof(efx->rx_indir_table));
1030         efx_nic_push_rx_indir_table(efx);
1031         return 0;
1032 }
1033
1034 const struct ethtool_ops efx_ethtool_ops = {
1035         .get_settings           = efx_ethtool_get_settings,
1036         .set_settings           = efx_ethtool_set_settings,
1037         .get_drvinfo            = efx_ethtool_get_drvinfo,
1038         .get_regs_len           = efx_ethtool_get_regs_len,
1039         .get_regs               = efx_ethtool_get_regs,
1040         .get_msglevel           = efx_ethtool_get_msglevel,
1041         .set_msglevel           = efx_ethtool_set_msglevel,
1042         .nway_reset             = efx_ethtool_nway_reset,
1043         .get_link               = ethtool_op_get_link,
1044         .get_coalesce           = efx_ethtool_get_coalesce,
1045         .set_coalesce           = efx_ethtool_set_coalesce,
1046         .get_ringparam          = efx_ethtool_get_ringparam,
1047         .set_ringparam          = efx_ethtool_set_ringparam,
1048         .get_pauseparam         = efx_ethtool_get_pauseparam,
1049         .set_pauseparam         = efx_ethtool_set_pauseparam,
1050         .get_rx_csum            = efx_ethtool_get_rx_csum,
1051         .set_rx_csum            = efx_ethtool_set_rx_csum,
1052         .get_tx_csum            = ethtool_op_get_tx_csum,
1053         /* Need to enable/disable IPv6 too */
1054         .set_tx_csum            = efx_ethtool_set_tx_csum,
1055         .get_sg                 = ethtool_op_get_sg,
1056         .set_sg                 = ethtool_op_set_sg,
1057         .get_tso                = ethtool_op_get_tso,
1058         /* Need to enable/disable TSO-IPv6 too */
1059         .set_tso                = efx_ethtool_set_tso,
1060         .get_flags              = ethtool_op_get_flags,
1061         .set_flags              = efx_ethtool_set_flags,
1062         .get_sset_count         = efx_ethtool_get_sset_count,
1063         .self_test              = efx_ethtool_self_test,
1064         .get_strings            = efx_ethtool_get_strings,
1065         .phys_id                = efx_ethtool_phys_id,
1066         .get_ethtool_stats      = efx_ethtool_get_stats,
1067         .get_wol                = efx_ethtool_get_wol,
1068         .set_wol                = efx_ethtool_set_wol,
1069         .reset                  = efx_ethtool_reset,
1070         .get_rxnfc              = efx_ethtool_get_rxnfc,
1071         .set_rx_ntuple          = efx_ethtool_set_rx_ntuple,
1072         .get_rxfh_indir         = efx_ethtool_get_rxfh_indir,
1073         .set_rxfh_indir         = efx_ethtool_set_rxfh_indir,
1074 };