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sfc: Remove unnecessary inclusion of various private header files
[mv-sheeva.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 "net_driver.h"
15 #include "workarounds.h"
16 #include "selftest.h"
17 #include "efx.h"
18 #include "filter.h"
19 #include "nic.h"
20
21 struct ethtool_string {
22         char name[ETH_GSTRING_LEN];
23 };
24
25 struct efx_ethtool_stat {
26         const char *name;
27         enum {
28                 EFX_ETHTOOL_STAT_SOURCE_mac_stats,
29                 EFX_ETHTOOL_STAT_SOURCE_nic,
30                 EFX_ETHTOOL_STAT_SOURCE_channel
31         } source;
32         unsigned offset;
33         u64(*get_stat) (void *field); /* Reader function */
34 };
35
36 /* Initialiser for a struct #efx_ethtool_stat with type-checking */
37 #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
38                                 get_stat_function) {                    \
39         .name = #stat_name,                                             \
40         .source = EFX_ETHTOOL_STAT_SOURCE_##source_name,                \
41         .offset = ((((field_type *) 0) ==                               \
42                       &((struct efx_##source_name *)0)->field) ?        \
43                     offsetof(struct efx_##source_name, field) :         \
44                     offsetof(struct efx_##source_name, field)),         \
45         .get_stat = get_stat_function,                                  \
46 }
47
48 static u64 efx_get_uint_stat(void *field)
49 {
50         return *(unsigned int *)field;
51 }
52
53 static u64 efx_get_ulong_stat(void *field)
54 {
55         return *(unsigned long *)field;
56 }
57
58 static u64 efx_get_u64_stat(void *field)
59 {
60         return *(u64 *) field;
61 }
62
63 static u64 efx_get_atomic_stat(void *field)
64 {
65         return atomic_read((atomic_t *) field);
66 }
67
68 #define EFX_ETHTOOL_ULONG_MAC_STAT(field)                       \
69         EFX_ETHTOOL_STAT(field, mac_stats, field,               \
70                           unsigned long, efx_get_ulong_stat)
71
72 #define EFX_ETHTOOL_U64_MAC_STAT(field)                         \
73         EFX_ETHTOOL_STAT(field, mac_stats, field,               \
74                           u64, efx_get_u64_stat)
75
76 #define EFX_ETHTOOL_UINT_NIC_STAT(name)                         \
77         EFX_ETHTOOL_STAT(name, nic, n_##name,                   \
78                          unsigned int, efx_get_uint_stat)
79
80 #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field)                \
81         EFX_ETHTOOL_STAT(field, nic, field,                     \
82                          atomic_t, efx_get_atomic_stat)
83
84 #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field)                    \
85         EFX_ETHTOOL_STAT(field, channel, n_##field,             \
86                          unsigned int, efx_get_uint_stat)
87
88 static struct efx_ethtool_stat efx_ethtool_stats[] = {
89         EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
90         EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
91         EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
92         EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
93         EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
94         EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
95         EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
96         EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
97         EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
98         EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
99         EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
100         EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
101         EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
102         EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
103         EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
104         EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
105         EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
106         EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
107         EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
108         EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
109         EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
110         EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
111         EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
112         EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
113         EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
114         EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
115         EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
116         EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
117         EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
118         EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
119         EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
120         EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
121         EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
122         EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
123         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
124         EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
125         EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
126         EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
127         EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
128         EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
129         EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
130         EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
131         EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
132         EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
133         EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
134         EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
135         EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
136         EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
137         EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
138         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
139         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
140         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
141         EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
142         EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
143         EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
144         EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
145         EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
146         EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
147         EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
148         EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
149         EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
150         EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
151         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
152         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
153         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
154         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
155         EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
156 };
157
158 /* Number of ethtool statistics */
159 #define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)
160
161 #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB
162
163 /**************************************************************************
164  *
165  * Ethtool operations
166  *
167  **************************************************************************
168  */
169
170 /* Identify device by flashing LEDs */
171 static int efx_ethtool_phys_id(struct net_device *net_dev, u32 count)
172 {
173         struct efx_nic *efx = netdev_priv(net_dev);
174
175         do {
176                 efx->type->set_id_led(efx, EFX_LED_ON);
177                 schedule_timeout_interruptible(HZ / 2);
178
179                 efx->type->set_id_led(efx, EFX_LED_OFF);
180                 schedule_timeout_interruptible(HZ / 2);
181         } while (!signal_pending(current) && --count != 0);
182
183         efx->type->set_id_led(efx, EFX_LED_DEFAULT);
184         return 0;
185 }
186
187 /* This must be called with rtnl_lock held. */
188 static int efx_ethtool_get_settings(struct net_device *net_dev,
189                                     struct ethtool_cmd *ecmd)
190 {
191         struct efx_nic *efx = netdev_priv(net_dev);
192         struct efx_link_state *link_state = &efx->link_state;
193
194         mutex_lock(&efx->mac_lock);
195         efx->phy_op->get_settings(efx, ecmd);
196         mutex_unlock(&efx->mac_lock);
197
198         /* GMAC does not support 1000Mbps HD */
199         ecmd->supported &= ~SUPPORTED_1000baseT_Half;
200         /* Both MACs support pause frames (bidirectional and respond-only) */
201         ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
202
203         if (LOOPBACK_INTERNAL(efx)) {
204                 ecmd->speed = link_state->speed;
205                 ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
206         }
207
208         return 0;
209 }
210
211 /* This must be called with rtnl_lock held. */
212 static int efx_ethtool_set_settings(struct net_device *net_dev,
213                                     struct ethtool_cmd *ecmd)
214 {
215         struct efx_nic *efx = netdev_priv(net_dev);
216         int rc;
217
218         /* GMAC does not support 1000Mbps HD */
219         if (ecmd->speed == SPEED_1000 && ecmd->duplex != DUPLEX_FULL) {
220                 netif_dbg(efx, drv, efx->net_dev,
221                           "rejecting unsupported 1000Mbps HD setting\n");
222                 return -EINVAL;
223         }
224
225         mutex_lock(&efx->mac_lock);
226         rc = efx->phy_op->set_settings(efx, ecmd);
227         mutex_unlock(&efx->mac_lock);
228         return rc;
229 }
230
231 static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
232                                     struct ethtool_drvinfo *info)
233 {
234         struct efx_nic *efx = netdev_priv(net_dev);
235
236         strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
237         strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
238         if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
239                 siena_print_fwver(efx, info->fw_version,
240                                   sizeof(info->fw_version));
241         strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
242 }
243
244 static int efx_ethtool_get_regs_len(struct net_device *net_dev)
245 {
246         return efx_nic_get_regs_len(netdev_priv(net_dev));
247 }
248
249 static void efx_ethtool_get_regs(struct net_device *net_dev,
250                                  struct ethtool_regs *regs, void *buf)
251 {
252         struct efx_nic *efx = netdev_priv(net_dev);
253
254         regs->version = efx->type->revision;
255         efx_nic_get_regs(efx, buf);
256 }
257
258 static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
259 {
260         struct efx_nic *efx = netdev_priv(net_dev);
261         return efx->msg_enable;
262 }
263
264 static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
265 {
266         struct efx_nic *efx = netdev_priv(net_dev);
267         efx->msg_enable = msg_enable;
268 }
269
270 /**
271  * efx_fill_test - fill in an individual self-test entry
272  * @test_index:         Index of the test
273  * @strings:            Ethtool strings, or %NULL
274  * @data:               Ethtool test results, or %NULL
275  * @test:               Pointer to test result (used only if data != %NULL)
276  * @unit_format:        Unit name format (e.g. "chan\%d")
277  * @unit_id:            Unit id (e.g. 0 for "chan0")
278  * @test_format:        Test name format (e.g. "loopback.\%s.tx.sent")
279  * @test_id:            Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
280  *
281  * Fill in an individual self-test entry.
282  */
283 static void efx_fill_test(unsigned int test_index,
284                           struct ethtool_string *strings, u64 *data,
285                           int *test, const char *unit_format, int unit_id,
286                           const char *test_format, const char *test_id)
287 {
288         struct ethtool_string unit_str, test_str;
289
290         /* Fill data value, if applicable */
291         if (data)
292                 data[test_index] = *test;
293
294         /* Fill string, if applicable */
295         if (strings) {
296                 if (strchr(unit_format, '%'))
297                         snprintf(unit_str.name, sizeof(unit_str.name),
298                                  unit_format, unit_id);
299                 else
300                         strcpy(unit_str.name, unit_format);
301                 snprintf(test_str.name, sizeof(test_str.name),
302                          test_format, test_id);
303                 snprintf(strings[test_index].name,
304                          sizeof(strings[test_index].name),
305                          "%-6s %-24s", unit_str.name, test_str.name);
306         }
307 }
308
309 #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
310 #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
311 #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
312 #define EFX_LOOPBACK_NAME(_mode, _counter)                      \
313         "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)
314
315 /**
316  * efx_fill_loopback_test - fill in a block of loopback self-test entries
317  * @efx:                Efx NIC
318  * @lb_tests:           Efx loopback self-test results structure
319  * @mode:               Loopback test mode
320  * @test_index:         Starting index of the test
321  * @strings:            Ethtool strings, or %NULL
322  * @data:               Ethtool test results, or %NULL
323  */
324 static int efx_fill_loopback_test(struct efx_nic *efx,
325                                   struct efx_loopback_self_tests *lb_tests,
326                                   enum efx_loopback_mode mode,
327                                   unsigned int test_index,
328                                   struct ethtool_string *strings, u64 *data)
329 {
330         struct efx_channel *channel = efx_get_channel(efx, 0);
331         struct efx_tx_queue *tx_queue;
332
333         efx_for_each_channel_tx_queue(tx_queue, channel) {
334                 efx_fill_test(test_index++, strings, data,
335                               &lb_tests->tx_sent[tx_queue->queue],
336                               EFX_TX_QUEUE_NAME(tx_queue),
337                               EFX_LOOPBACK_NAME(mode, "tx_sent"));
338                 efx_fill_test(test_index++, strings, data,
339                               &lb_tests->tx_done[tx_queue->queue],
340                               EFX_TX_QUEUE_NAME(tx_queue),
341                               EFX_LOOPBACK_NAME(mode, "tx_done"));
342         }
343         efx_fill_test(test_index++, strings, data,
344                       &lb_tests->rx_good,
345                       "rx", 0,
346                       EFX_LOOPBACK_NAME(mode, "rx_good"));
347         efx_fill_test(test_index++, strings, data,
348                       &lb_tests->rx_bad,
349                       "rx", 0,
350                       EFX_LOOPBACK_NAME(mode, "rx_bad"));
351
352         return test_index;
353 }
354
355 /**
356  * efx_ethtool_fill_self_tests - get self-test details
357  * @efx:                Efx NIC
358  * @tests:              Efx self-test results structure, or %NULL
359  * @strings:            Ethtool strings, or %NULL
360  * @data:               Ethtool test results, or %NULL
361  */
362 static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
363                                        struct efx_self_tests *tests,
364                                        struct ethtool_string *strings,
365                                        u64 *data)
366 {
367         struct efx_channel *channel;
368         unsigned int n = 0, i;
369         enum efx_loopback_mode mode;
370
371         efx_fill_test(n++, strings, data, &tests->phy_alive,
372                       "phy", 0, "alive", NULL);
373         efx_fill_test(n++, strings, data, &tests->nvram,
374                       "core", 0, "nvram", NULL);
375         efx_fill_test(n++, strings, data, &tests->interrupt,
376                       "core", 0, "interrupt", NULL);
377
378         /* Event queues */
379         efx_for_each_channel(channel, efx) {
380                 efx_fill_test(n++, strings, data,
381                               &tests->eventq_dma[channel->channel],
382                               EFX_CHANNEL_NAME(channel),
383                               "eventq.dma", NULL);
384                 efx_fill_test(n++, strings, data,
385                               &tests->eventq_int[channel->channel],
386                               EFX_CHANNEL_NAME(channel),
387                               "eventq.int", NULL);
388                 efx_fill_test(n++, strings, data,
389                               &tests->eventq_poll[channel->channel],
390                               EFX_CHANNEL_NAME(channel),
391                               "eventq.poll", NULL);
392         }
393
394         efx_fill_test(n++, strings, data, &tests->registers,
395                       "core", 0, "registers", NULL);
396
397         if (efx->phy_op->run_tests != NULL) {
398                 EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);
399
400                 for (i = 0; true; ++i) {
401                         const char *name;
402
403                         EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
404                         name = efx->phy_op->test_name(efx, i);
405                         if (name == NULL)
406                                 break;
407
408                         efx_fill_test(n++, strings, data, &tests->phy_ext[i],
409                                       "phy", 0, name, NULL);
410                 }
411         }
412
413         /* Loopback tests */
414         for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
415                 if (!(efx->loopback_modes & (1 << mode)))
416                         continue;
417                 n = efx_fill_loopback_test(efx,
418                                            &tests->loopback[mode], mode, n,
419                                            strings, data);
420         }
421
422         return n;
423 }
424
425 static int efx_ethtool_get_sset_count(struct net_device *net_dev,
426                                       int string_set)
427 {
428         switch (string_set) {
429         case ETH_SS_STATS:
430                 return EFX_ETHTOOL_NUM_STATS;
431         case ETH_SS_TEST:
432                 return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
433                                                    NULL, NULL, NULL);
434         default:
435                 return -EINVAL;
436         }
437 }
438
439 static void efx_ethtool_get_strings(struct net_device *net_dev,
440                                     u32 string_set, u8 *strings)
441 {
442         struct efx_nic *efx = netdev_priv(net_dev);
443         struct ethtool_string *ethtool_strings =
444                 (struct ethtool_string *)strings;
445         int i;
446
447         switch (string_set) {
448         case ETH_SS_STATS:
449                 for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
450                         strncpy(ethtool_strings[i].name,
451                                 efx_ethtool_stats[i].name,
452                                 sizeof(ethtool_strings[i].name));
453                 break;
454         case ETH_SS_TEST:
455                 efx_ethtool_fill_self_tests(efx, NULL,
456                                             ethtool_strings, NULL);
457                 break;
458         default:
459                 /* No other string sets */
460                 break;
461         }
462 }
463
464 static void efx_ethtool_get_stats(struct net_device *net_dev,
465                                   struct ethtool_stats *stats,
466                                   u64 *data)
467 {
468         struct efx_nic *efx = netdev_priv(net_dev);
469         struct efx_mac_stats *mac_stats = &efx->mac_stats;
470         struct efx_ethtool_stat *stat;
471         struct efx_channel *channel;
472         struct rtnl_link_stats64 temp;
473         int i;
474
475         EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
476
477         /* Update MAC and NIC statistics */
478         dev_get_stats(net_dev, &temp);
479
480         /* Fill detailed statistics buffer */
481         for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
482                 stat = &efx_ethtool_stats[i];
483                 switch (stat->source) {
484                 case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
485                         data[i] = stat->get_stat((void *)mac_stats +
486                                                  stat->offset);
487                         break;
488                 case EFX_ETHTOOL_STAT_SOURCE_nic:
489                         data[i] = stat->get_stat((void *)efx + stat->offset);
490                         break;
491                 case EFX_ETHTOOL_STAT_SOURCE_channel:
492                         data[i] = 0;
493                         efx_for_each_channel(channel, efx)
494                                 data[i] += stat->get_stat((void *)channel +
495                                                           stat->offset);
496                         break;
497                 }
498         }
499 }
500
501 static int efx_ethtool_set_tso(struct net_device *net_dev, u32 enable)
502 {
503         struct efx_nic *efx __attribute__ ((unused)) = netdev_priv(net_dev);
504         unsigned long features;
505
506         features = NETIF_F_TSO;
507         if (efx->type->offload_features & NETIF_F_V6_CSUM)
508                 features |= NETIF_F_TSO6;
509
510         if (enable)
511                 net_dev->features |= features;
512         else
513                 net_dev->features &= ~features;
514
515         return 0;
516 }
517
518 static int efx_ethtool_set_tx_csum(struct net_device *net_dev, u32 enable)
519 {
520         struct efx_nic *efx = netdev_priv(net_dev);
521         unsigned long features = efx->type->offload_features & NETIF_F_ALL_CSUM;
522
523         if (enable)
524                 net_dev->features |= features;
525         else
526                 net_dev->features &= ~features;
527
528         return 0;
529 }
530
531 static int efx_ethtool_set_rx_csum(struct net_device *net_dev, u32 enable)
532 {
533         struct efx_nic *efx = netdev_priv(net_dev);
534
535         /* No way to stop the hardware doing the checks; we just
536          * ignore the result.
537          */
538         efx->rx_checksum_enabled = !!enable;
539
540         return 0;
541 }
542
543 static u32 efx_ethtool_get_rx_csum(struct net_device *net_dev)
544 {
545         struct efx_nic *efx = netdev_priv(net_dev);
546
547         return efx->rx_checksum_enabled;
548 }
549
550 static int efx_ethtool_set_flags(struct net_device *net_dev, u32 data)
551 {
552         struct efx_nic *efx = netdev_priv(net_dev);
553         u32 supported = (efx->type->offload_features &
554                          (ETH_FLAG_RXHASH | ETH_FLAG_NTUPLE));
555         int rc;
556
557         rc = ethtool_op_set_flags(net_dev, data, supported);
558         if (rc)
559                 return rc;
560
561         if (!(data & ETH_FLAG_NTUPLE)) {
562                 efx_filter_table_clear(efx, EFX_FILTER_TABLE_RX_IP,
563                                        EFX_FILTER_PRI_MANUAL);
564                 efx_filter_table_clear(efx, EFX_FILTER_TABLE_RX_MAC,
565                                        EFX_FILTER_PRI_MANUAL);
566         }
567
568         return 0;
569 }
570
571 static void efx_ethtool_self_test(struct net_device *net_dev,
572                                   struct ethtool_test *test, u64 *data)
573 {
574         struct efx_nic *efx = netdev_priv(net_dev);
575         struct efx_self_tests efx_tests;
576         int already_up;
577         int rc;
578
579         ASSERT_RTNL();
580         if (efx->state != STATE_RUNNING) {
581                 rc = -EIO;
582                 goto fail1;
583         }
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_dbg(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 u32 efx_ethtool_get_link(struct net_device *net_dev)
624 {
625         struct efx_nic *efx = netdev_priv(net_dev);
626
627         return efx->link_state.up;
628 }
629
630 static int efx_ethtool_get_coalesce(struct net_device *net_dev,
631                                     struct ethtool_coalesce *coalesce)
632 {
633         struct efx_nic *efx = netdev_priv(net_dev);
634         struct efx_channel *channel;
635
636         memset(coalesce, 0, sizeof(*coalesce));
637
638         /* Find lowest IRQ moderation across all used TX queues */
639         coalesce->tx_coalesce_usecs_irq = ~((u32) 0);
640         efx_for_each_channel(channel, efx) {
641                 if (!efx_channel_get_tx_queue(channel, 0))
642                         continue;
643                 if (channel->irq_moderation < coalesce->tx_coalesce_usecs_irq) {
644                         if (channel->channel < efx->n_rx_channels)
645                                 coalesce->tx_coalesce_usecs_irq =
646                                         channel->irq_moderation;
647                         else
648                                 coalesce->tx_coalesce_usecs_irq = 0;
649                 }
650         }
651
652         coalesce->use_adaptive_rx_coalesce = efx->irq_rx_adaptive;
653         coalesce->rx_coalesce_usecs_irq = efx->irq_rx_moderation;
654
655         coalesce->tx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
656         coalesce->rx_coalesce_usecs_irq *= EFX_IRQ_MOD_RESOLUTION;
657
658         return 0;
659 }
660
661 /* Set coalescing parameters
662  * The difficulties occur for shared channels
663  */
664 static int efx_ethtool_set_coalesce(struct net_device *net_dev,
665                                     struct ethtool_coalesce *coalesce)
666 {
667         struct efx_nic *efx = netdev_priv(net_dev);
668         struct efx_channel *channel;
669         unsigned tx_usecs, rx_usecs, adaptive;
670
671         if (coalesce->use_adaptive_tx_coalesce)
672                 return -EOPNOTSUPP;
673
674         if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
675                 netif_err(efx, drv, efx->net_dev, "invalid coalescing setting. "
676                           "Only rx/tx_coalesce_usecs_irq are supported\n");
677                 return -EOPNOTSUPP;
678         }
679
680         rx_usecs = coalesce->rx_coalesce_usecs_irq;
681         tx_usecs = coalesce->tx_coalesce_usecs_irq;
682         adaptive = coalesce->use_adaptive_rx_coalesce;
683
684         /* If the channel is shared only allow RX parameters to be set */
685         efx_for_each_channel(channel, efx) {
686                 if (efx_channel_get_rx_queue(channel) &&
687                     efx_channel_get_tx_queue(channel, 0) &&
688                     tx_usecs) {
689                         netif_err(efx, drv, efx->net_dev, "Channel is shared. "
690                                   "Only RX coalescing may be set\n");
691                         return -EOPNOTSUPP;
692                 }
693         }
694
695         efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive);
696         efx_for_each_channel(channel, efx)
697                 efx->type->push_irq_moderation(channel);
698
699         return 0;
700 }
701
702 static void efx_ethtool_get_ringparam(struct net_device *net_dev,
703                                       struct ethtool_ringparam *ring)
704 {
705         struct efx_nic *efx = netdev_priv(net_dev);
706
707         ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
708         ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
709         ring->rx_mini_max_pending = 0;
710         ring->rx_jumbo_max_pending = 0;
711         ring->rx_pending = efx->rxq_entries;
712         ring->tx_pending = efx->txq_entries;
713         ring->rx_mini_pending = 0;
714         ring->rx_jumbo_pending = 0;
715 }
716
717 static int efx_ethtool_set_ringparam(struct net_device *net_dev,
718                                      struct ethtool_ringparam *ring)
719 {
720         struct efx_nic *efx = netdev_priv(net_dev);
721
722         if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
723             ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
724             ring->tx_pending > EFX_MAX_DMAQ_SIZE)
725                 return -EINVAL;
726
727         if (ring->rx_pending < EFX_MIN_RING_SIZE ||
728             ring->tx_pending < EFX_MIN_RING_SIZE) {
729                 netif_err(efx, drv, efx->net_dev,
730                           "TX and RX queues cannot be smaller than %ld\n",
731                           EFX_MIN_RING_SIZE);
732                 return -EINVAL;
733         }
734
735         return efx_realloc_channels(efx, ring->rx_pending, ring->tx_pending);
736 }
737
738 static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
739                                       struct ethtool_pauseparam *pause)
740 {
741         struct efx_nic *efx = netdev_priv(net_dev);
742         enum efx_fc_type wanted_fc, old_fc;
743         u32 old_adv;
744         bool reset;
745         int rc = 0;
746
747         mutex_lock(&efx->mac_lock);
748
749         wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
750                      (pause->tx_pause ? EFX_FC_TX : 0) |
751                      (pause->autoneg ? EFX_FC_AUTO : 0));
752
753         if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
754                 netif_dbg(efx, drv, efx->net_dev,
755                           "Flow control unsupported: tx ON rx OFF\n");
756                 rc = -EINVAL;
757                 goto out;
758         }
759
760         if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
761                 netif_dbg(efx, drv, efx->net_dev,
762                           "Autonegotiation is disabled\n");
763                 rc = -EINVAL;
764                 goto out;
765         }
766
767         /* TX flow control may automatically turn itself off if the
768          * link partner (intermittently) stops responding to pause
769          * frames. There isn't any indication that this has happened,
770          * so the best we do is leave it up to the user to spot this
771          * and fix it be cycling transmit flow control on this end. */
772         reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
773         if (EFX_WORKAROUND_11482(efx) && reset) {
774                 if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
775                         /* Recover by resetting the EM block */
776                         falcon_stop_nic_stats(efx);
777                         falcon_drain_tx_fifo(efx);
778                         efx->mac_op->reconfigure(efx);
779                         falcon_start_nic_stats(efx);
780                 } else {
781                         /* Schedule a reset to recover */
782                         efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
783                 }
784         }
785
786         old_adv = efx->link_advertising;
787         old_fc = efx->wanted_fc;
788         efx_link_set_wanted_fc(efx, wanted_fc);
789         if (efx->link_advertising != old_adv ||
790             (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
791                 rc = efx->phy_op->reconfigure(efx);
792                 if (rc) {
793                         netif_err(efx, drv, efx->net_dev,
794                                   "Unable to advertise requested flow "
795                                   "control setting\n");
796                         goto out;
797                 }
798         }
799
800         /* Reconfigure the MAC. The PHY *may* generate a link state change event
801          * if the user just changed the advertised capabilities, but there's no
802          * harm doing this twice */
803         efx->mac_op->reconfigure(efx);
804
805 out:
806         mutex_unlock(&efx->mac_lock);
807
808         return rc;
809 }
810
811 static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
812                                        struct ethtool_pauseparam *pause)
813 {
814         struct efx_nic *efx = netdev_priv(net_dev);
815
816         pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
817         pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
818         pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
819 }
820
821
822 static void efx_ethtool_get_wol(struct net_device *net_dev,
823                                 struct ethtool_wolinfo *wol)
824 {
825         struct efx_nic *efx = netdev_priv(net_dev);
826         return efx->type->get_wol(efx, wol);
827 }
828
829
830 static int efx_ethtool_set_wol(struct net_device *net_dev,
831                                struct ethtool_wolinfo *wol)
832 {
833         struct efx_nic *efx = netdev_priv(net_dev);
834         return efx->type->set_wol(efx, wol->wolopts);
835 }
836
837 static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
838 {
839         struct efx_nic *efx = netdev_priv(net_dev);
840         enum reset_type method;
841         enum {
842                 ETH_RESET_EFX_INVISIBLE = (ETH_RESET_DMA | ETH_RESET_FILTER |
843                                            ETH_RESET_OFFLOAD | ETH_RESET_MAC)
844         };
845
846         /* Check for minimal reset flags */
847         if ((*flags & ETH_RESET_EFX_INVISIBLE) != ETH_RESET_EFX_INVISIBLE)
848                 return -EINVAL;
849         *flags ^= ETH_RESET_EFX_INVISIBLE;
850         method = RESET_TYPE_INVISIBLE;
851
852         if (*flags & ETH_RESET_PHY) {
853                 *flags ^= ETH_RESET_PHY;
854                 method = RESET_TYPE_ALL;
855         }
856
857         if ((*flags & efx->type->reset_world_flags) ==
858             efx->type->reset_world_flags) {
859                 *flags ^= efx->type->reset_world_flags;
860                 method = RESET_TYPE_WORLD;
861         }
862
863         return efx_reset(efx, method);
864 }
865
866 static int
867 efx_ethtool_get_rxnfc(struct net_device *net_dev,
868                       struct ethtool_rxnfc *info, void *rules __always_unused)
869 {
870         struct efx_nic *efx = netdev_priv(net_dev);
871
872         switch (info->cmd) {
873         case ETHTOOL_GRXRINGS:
874                 info->data = efx->n_rx_channels;
875                 return 0;
876
877         case ETHTOOL_GRXFH: {
878                 unsigned min_revision = 0;
879
880                 info->data = 0;
881                 switch (info->flow_type) {
882                 case TCP_V4_FLOW:
883                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
884                         /* fall through */
885                 case UDP_V4_FLOW:
886                 case SCTP_V4_FLOW:
887                 case AH_ESP_V4_FLOW:
888                 case IPV4_FLOW:
889                         info->data |= RXH_IP_SRC | RXH_IP_DST;
890                         min_revision = EFX_REV_FALCON_B0;
891                         break;
892                 case TCP_V6_FLOW:
893                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
894                         /* fall through */
895                 case UDP_V6_FLOW:
896                 case SCTP_V6_FLOW:
897                 case AH_ESP_V6_FLOW:
898                 case IPV6_FLOW:
899                         info->data |= RXH_IP_SRC | RXH_IP_DST;
900                         min_revision = EFX_REV_SIENA_A0;
901                         break;
902                 default:
903                         break;
904                 }
905                 if (efx_nic_rev(efx) < min_revision)
906                         info->data = 0;
907                 return 0;
908         }
909
910         default:
911                 return -EOPNOTSUPP;
912         }
913 }
914
915 static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
916                                      struct ethtool_rx_ntuple *ntuple)
917 {
918         struct efx_nic *efx = netdev_priv(net_dev);
919         struct ethtool_tcpip4_spec *ip_entry = &ntuple->fs.h_u.tcp_ip4_spec;
920         struct ethtool_tcpip4_spec *ip_mask = &ntuple->fs.m_u.tcp_ip4_spec;
921         struct ethhdr *mac_entry = &ntuple->fs.h_u.ether_spec;
922         struct ethhdr *mac_mask = &ntuple->fs.m_u.ether_spec;
923         struct efx_filter_spec filter;
924
925         /* Range-check action */
926         if (ntuple->fs.action < ETHTOOL_RXNTUPLE_ACTION_CLEAR ||
927             ntuple->fs.action >= (s32)efx->n_rx_channels)
928                 return -EINVAL;
929
930         if (~ntuple->fs.data_mask)
931                 return -EINVAL;
932
933         switch (ntuple->fs.flow_type) {
934         case TCP_V4_FLOW:
935         case UDP_V4_FLOW:
936                 /* Must match all of destination, */
937                 if (ip_mask->ip4dst | ip_mask->pdst)
938                         return -EINVAL;
939                 /* all or none of source, */
940                 if ((ip_mask->ip4src | ip_mask->psrc) &&
941                     ((__force u32)~ip_mask->ip4src |
942                      (__force u16)~ip_mask->psrc))
943                         return -EINVAL;
944                 /* and nothing else */
945                 if ((u8)~ip_mask->tos | (u16)~ntuple->fs.vlan_tag_mask)
946                         return -EINVAL;
947                 break;
948         case ETHER_FLOW:
949                 /* Must match all of destination, */
950                 if (!is_zero_ether_addr(mac_mask->h_dest))
951                         return -EINVAL;
952                 /* all or none of VID, */
953                 if (ntuple->fs.vlan_tag_mask != 0xf000 &&
954                     ntuple->fs.vlan_tag_mask != 0xffff)
955                         return -EINVAL;
956                 /* and nothing else */
957                 if (!is_broadcast_ether_addr(mac_mask->h_source) ||
958                     mac_mask->h_proto != htons(0xffff))
959                         return -EINVAL;
960                 break;
961         default:
962                 return -EINVAL;
963         }
964
965         filter.priority = EFX_FILTER_PRI_MANUAL;
966         filter.flags = 0;
967
968         switch (ntuple->fs.flow_type) {
969         case TCP_V4_FLOW:
970                 if (!ip_mask->ip4src)
971                         efx_filter_set_rx_tcp_full(&filter,
972                                                    htonl(ip_entry->ip4src),
973                                                    htons(ip_entry->psrc),
974                                                    htonl(ip_entry->ip4dst),
975                                                    htons(ip_entry->pdst));
976                 else
977                         efx_filter_set_rx_tcp_wild(&filter,
978                                                    htonl(ip_entry->ip4dst),
979                                                    htons(ip_entry->pdst));
980                 break;
981         case UDP_V4_FLOW:
982                 if (!ip_mask->ip4src)
983                         efx_filter_set_rx_udp_full(&filter,
984                                                    htonl(ip_entry->ip4src),
985                                                    htons(ip_entry->psrc),
986                                                    htonl(ip_entry->ip4dst),
987                                                    htons(ip_entry->pdst));
988                 else
989                         efx_filter_set_rx_udp_wild(&filter,
990                                                    htonl(ip_entry->ip4dst),
991                                                    htons(ip_entry->pdst));
992                 break;
993         case ETHER_FLOW:
994                 if (ntuple->fs.vlan_tag_mask == 0xf000)
995                         efx_filter_set_rx_mac_full(&filter,
996                                                    ntuple->fs.vlan_tag & 0xfff,
997                                                    mac_entry->h_dest);
998                 else
999                         efx_filter_set_rx_mac_wild(&filter, mac_entry->h_dest);
1000                 break;
1001         }
1002
1003         if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_CLEAR) {
1004                 return efx_filter_remove_filter(efx, &filter);
1005         } else {
1006                 if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP)
1007                         filter.dmaq_id = 0xfff;
1008                 else
1009                         filter.dmaq_id = ntuple->fs.action;
1010                 return efx_filter_insert_filter(efx, &filter, true);
1011         }
1012 }
1013
1014 static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
1015                                       struct ethtool_rxfh_indir *indir)
1016 {
1017         struct efx_nic *efx = netdev_priv(net_dev);
1018         size_t copy_size =
1019                 min_t(size_t, indir->size, ARRAY_SIZE(efx->rx_indir_table));
1020
1021         if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
1022                 return -EOPNOTSUPP;
1023
1024         indir->size = ARRAY_SIZE(efx->rx_indir_table);
1025         memcpy(indir->ring_index, efx->rx_indir_table,
1026                copy_size * sizeof(indir->ring_index[0]));
1027         return 0;
1028 }
1029
1030 static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
1031                                       const struct ethtool_rxfh_indir *indir)
1032 {
1033         struct efx_nic *efx = netdev_priv(net_dev);
1034         size_t i;
1035
1036         if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
1037                 return -EOPNOTSUPP;
1038
1039         /* Validate size and indices */
1040         if (indir->size != ARRAY_SIZE(efx->rx_indir_table))
1041                 return -EINVAL;
1042         for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
1043                 if (indir->ring_index[i] >= efx->n_rx_channels)
1044                         return -EINVAL;
1045
1046         memcpy(efx->rx_indir_table, indir->ring_index,
1047                sizeof(efx->rx_indir_table));
1048         efx_nic_push_rx_indir_table(efx);
1049         return 0;
1050 }
1051
1052 const struct ethtool_ops efx_ethtool_ops = {
1053         .get_settings           = efx_ethtool_get_settings,
1054         .set_settings           = efx_ethtool_set_settings,
1055         .get_drvinfo            = efx_ethtool_get_drvinfo,
1056         .get_regs_len           = efx_ethtool_get_regs_len,
1057         .get_regs               = efx_ethtool_get_regs,
1058         .get_msglevel           = efx_ethtool_get_msglevel,
1059         .set_msglevel           = efx_ethtool_set_msglevel,
1060         .nway_reset             = efx_ethtool_nway_reset,
1061         .get_link               = efx_ethtool_get_link,
1062         .get_coalesce           = efx_ethtool_get_coalesce,
1063         .set_coalesce           = efx_ethtool_set_coalesce,
1064         .get_ringparam          = efx_ethtool_get_ringparam,
1065         .set_ringparam          = efx_ethtool_set_ringparam,
1066         .get_pauseparam         = efx_ethtool_get_pauseparam,
1067         .set_pauseparam         = efx_ethtool_set_pauseparam,
1068         .get_rx_csum            = efx_ethtool_get_rx_csum,
1069         .set_rx_csum            = efx_ethtool_set_rx_csum,
1070         .get_tx_csum            = ethtool_op_get_tx_csum,
1071         /* Need to enable/disable IPv6 too */
1072         .set_tx_csum            = efx_ethtool_set_tx_csum,
1073         .get_sg                 = ethtool_op_get_sg,
1074         .set_sg                 = ethtool_op_set_sg,
1075         .get_tso                = ethtool_op_get_tso,
1076         /* Need to enable/disable TSO-IPv6 too */
1077         .set_tso                = efx_ethtool_set_tso,
1078         .get_flags              = ethtool_op_get_flags,
1079         .set_flags              = efx_ethtool_set_flags,
1080         .get_sset_count         = efx_ethtool_get_sset_count,
1081         .self_test              = efx_ethtool_self_test,
1082         .get_strings            = efx_ethtool_get_strings,
1083         .phys_id                = efx_ethtool_phys_id,
1084         .get_ethtool_stats      = efx_ethtool_get_stats,
1085         .get_wol                = efx_ethtool_get_wol,
1086         .set_wol                = efx_ethtool_set_wol,
1087         .reset                  = efx_ethtool_reset,
1088         .get_rxnfc              = efx_ethtool_get_rxnfc,
1089         .set_rx_ntuple          = efx_ethtool_set_rx_ntuple,
1090         .get_rxfh_indir         = efx_ethtool_get_rxfh_indir,
1091         .set_rxfh_indir         = efx_ethtool_set_rxfh_indir,
1092 };