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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / drivers / net / ethernet / amazon / ena / ena_ethtool.c
blob060cb18fa65963d15ae56cc41164b78d8f0180ed
1 /*
2 * Copyright 2015 Amazon.com, Inc. or its affiliates.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33 #include <linux/pci.h>
34
35 #include "ena_netdev.h"
36
37 struct ena_stats {
38 char name[ETH_GSTRING_LEN];
39 int stat_offset;
40 };
41
42 #define ENA_STAT_ENA_COM_ENTRY(stat) { \
43 .name = #stat, \
44 .stat_offset = offsetof(struct ena_com_stats_admin, stat) \
45 }
46
47 #define ENA_STAT_ENTRY(stat, stat_type) { \
48 .name = #stat, \
49 .stat_offset = offsetof(struct ena_stats_##stat_type, stat) \
50 }
51
52 #define ENA_STAT_RX_ENTRY(stat) \
53 ENA_STAT_ENTRY(stat, rx)
54
55 #define ENA_STAT_TX_ENTRY(stat) \
56 ENA_STAT_ENTRY(stat, tx)
57
58 #define ENA_STAT_GLOBAL_ENTRY(stat) \
59 ENA_STAT_ENTRY(stat, dev)
60
61 static const struct ena_stats ena_stats_global_strings[] = {
62 ENA_STAT_GLOBAL_ENTRY(tx_timeout),
63 ENA_STAT_GLOBAL_ENTRY(suspend),
64 ENA_STAT_GLOBAL_ENTRY(resume),
65 ENA_STAT_GLOBAL_ENTRY(wd_expired),
66 ENA_STAT_GLOBAL_ENTRY(interface_up),
67 ENA_STAT_GLOBAL_ENTRY(interface_down),
68 ENA_STAT_GLOBAL_ENTRY(admin_q_pause),
69 };
70
71 static const struct ena_stats ena_stats_tx_strings[] = {
72 ENA_STAT_TX_ENTRY(cnt),
73 ENA_STAT_TX_ENTRY(bytes),
74 ENA_STAT_TX_ENTRY(queue_stop),
75 ENA_STAT_TX_ENTRY(queue_wakeup),
76 ENA_STAT_TX_ENTRY(dma_mapping_err),
77 ENA_STAT_TX_ENTRY(linearize),
78 ENA_STAT_TX_ENTRY(linearize_failed),
79 ENA_STAT_TX_ENTRY(napi_comp),
80 ENA_STAT_TX_ENTRY(tx_poll),
81 ENA_STAT_TX_ENTRY(doorbells),
82 ENA_STAT_TX_ENTRY(prepare_ctx_err),
83 ENA_STAT_TX_ENTRY(bad_req_id),
84 ENA_STAT_TX_ENTRY(missed_tx),
85 };
86
87 static const struct ena_stats ena_stats_rx_strings[] = {
88 ENA_STAT_RX_ENTRY(cnt),
89 ENA_STAT_RX_ENTRY(bytes),
90 ENA_STAT_RX_ENTRY(refil_partial),
91 ENA_STAT_RX_ENTRY(bad_csum),
92 ENA_STAT_RX_ENTRY(page_alloc_fail),
93 ENA_STAT_RX_ENTRY(skb_alloc_fail),
94 ENA_STAT_RX_ENTRY(dma_mapping_err),
95 ENA_STAT_RX_ENTRY(bad_desc_num),
96 ENA_STAT_RX_ENTRY(rx_copybreak_pkt),
97 ENA_STAT_RX_ENTRY(bad_req_id),
98 ENA_STAT_RX_ENTRY(empty_rx_ring),
99 };
100
101 static const struct ena_stats ena_stats_ena_com_strings[] = {
102 ENA_STAT_ENA_COM_ENTRY(aborted_cmd),
103 ENA_STAT_ENA_COM_ENTRY(submitted_cmd),
104 ENA_STAT_ENA_COM_ENTRY(completed_cmd),
105 ENA_STAT_ENA_COM_ENTRY(out_of_space),
106 ENA_STAT_ENA_COM_ENTRY(no_completion),
107 };
108
109 #define ENA_STATS_ARRAY_GLOBAL ARRAY_SIZE(ena_stats_global_strings)
110 #define ENA_STATS_ARRAY_TX ARRAY_SIZE(ena_stats_tx_strings)
111 #define ENA_STATS_ARRAY_RX ARRAY_SIZE(ena_stats_rx_strings)
112 #define ENA_STATS_ARRAY_ENA_COM ARRAY_SIZE(ena_stats_ena_com_strings)
113
114 static void ena_safe_update_stat(u64 *src, u64 *dst,
115 struct u64_stats_sync *syncp)
116 {
117 unsigned int start;
118
119 do {
120 start = u64_stats_fetch_begin_irq(syncp);
121 *(dst) = *src;
122 } while (u64_stats_fetch_retry_irq(syncp, start));
123 }
124
125 static void ena_queue_stats(struct ena_adapter *adapter, u64 **data)
126 {
127 const struct ena_stats *ena_stats;
128 struct ena_ring *ring;
129
130 u64 *ptr;
131 int i, j;
132
133 for (i = 0; i < adapter->num_queues; i++) {
134 /* Tx stats */
135 ring = &adapter->tx_ring[i];
136
137 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
138 ena_stats = &ena_stats_tx_strings[j];
139
140 ptr = (u64 *)((uintptr_t)&ring->tx_stats +
141 (uintptr_t)ena_stats->stat_offset);
142
143 ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
144 }
145
146 /* Rx stats */
147 ring = &adapter->rx_ring[i];
148
149 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
150 ena_stats = &ena_stats_rx_strings[j];
151
152 ptr = (u64 *)((uintptr_t)&ring->rx_stats +
153 (uintptr_t)ena_stats->stat_offset);
154
155 ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
156 }
157 }
158 }
159
160 static void ena_dev_admin_queue_stats(struct ena_adapter *adapter, u64 **data)
161 {
162 const struct ena_stats *ena_stats;
163 u32 *ptr;
164 int i;
165
166 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
167 ena_stats = &ena_stats_ena_com_strings[i];
168
169 ptr = (u32 *)((uintptr_t)&adapter->ena_dev->admin_queue.stats +
170 (uintptr_t)ena_stats->stat_offset);
171
172 *(*data)++ = *ptr;
173 }
174 }
175
176 static void ena_get_ethtool_stats(struct net_device *netdev,
177 struct ethtool_stats *stats,
178 u64 *data)
179 {
180 struct ena_adapter *adapter = netdev_priv(netdev);
181 const struct ena_stats *ena_stats;
182 u64 *ptr;
183 int i;
184
185 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
186 ena_stats = &ena_stats_global_strings[i];
187
188 ptr = (u64 *)((uintptr_t)&adapter->dev_stats +
189 (uintptr_t)ena_stats->stat_offset);
190
191 ena_safe_update_stat(ptr, data++, &adapter->syncp);
192 }
193
194 ena_queue_stats(adapter, &data);
195 ena_dev_admin_queue_stats(adapter, &data);
196 }
197
198 int ena_get_sset_count(struct net_device *netdev, int sset)
199 {
200 struct ena_adapter *adapter = netdev_priv(netdev);
201
202 if (sset != ETH_SS_STATS)
203 return -EOPNOTSUPP;
204
205 return adapter->num_queues * (ENA_STATS_ARRAY_TX + ENA_STATS_ARRAY_RX)
206 + ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENA_COM;
207 }
208
209 static void ena_queue_strings(struct ena_adapter *adapter, u8 **data)
210 {
211 const struct ena_stats *ena_stats;
212 int i, j;
213
214 for (i = 0; i < adapter->num_queues; i++) {
215 /* Tx stats */
216 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
217 ena_stats = &ena_stats_tx_strings[j];
218
219 snprintf(*data, ETH_GSTRING_LEN,
220 "queue_%u_tx_%s", i, ena_stats->name);
221 (*data) += ETH_GSTRING_LEN;
222 }
223 /* Rx stats */
224 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
225 ena_stats = &ena_stats_rx_strings[j];
226
227 snprintf(*data, ETH_GSTRING_LEN,
228 "queue_%u_rx_%s", i, ena_stats->name);
229 (*data) += ETH_GSTRING_LEN;
230 }
231 }
232 }
233
234 static void ena_com_dev_strings(u8 **data)
235 {
236 const struct ena_stats *ena_stats;
237 int i;
238
239 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
240 ena_stats = &ena_stats_ena_com_strings[i];
241
242 snprintf(*data, ETH_GSTRING_LEN,
243 "ena_admin_q_%s", ena_stats->name);
244 (*data) += ETH_GSTRING_LEN;
245 }
246 }
247
248 static void ena_get_strings(struct net_device *netdev, u32 sset, u8 *data)
249 {
250 struct ena_adapter *adapter = netdev_priv(netdev);
251 const struct ena_stats *ena_stats;
252 int i;
253
254 if (sset != ETH_SS_STATS)
255 return;
256
257 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
258 ena_stats = &ena_stats_global_strings[i];
259
260 memcpy(data, ena_stats->name, ETH_GSTRING_LEN);
261 data += ETH_GSTRING_LEN;
262 }
263
264 ena_queue_strings(adapter, &data);
265 ena_com_dev_strings(&data);
266 }
267
268 static int ena_get_link_ksettings(struct net_device *netdev,
269 struct ethtool_link_ksettings *link_ksettings)
270 {
271 struct ena_adapter *adapter = netdev_priv(netdev);
272 struct ena_com_dev *ena_dev = adapter->ena_dev;
273 struct ena_admin_get_feature_link_desc *link;
274 struct ena_admin_get_feat_resp feat_resp;
275 int rc;
276
277 rc = ena_com_get_link_params(ena_dev, &feat_resp);
278 if (rc)
279 return rc;
280
281 link = &feat_resp.u.link;
282 link_ksettings->base.speed = link->speed;
283
284 if (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) {
285 ethtool_link_ksettings_add_link_mode(link_ksettings,
286 supported, Autoneg);
287 ethtool_link_ksettings_add_link_mode(link_ksettings,
288 supported, Autoneg);
289 }
290
291 link_ksettings->base.autoneg =
292 (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) ?
293 AUTONEG_ENABLE : AUTONEG_DISABLE;
294
295 link_ksettings->base.duplex = DUPLEX_FULL;
296
297 return 0;
298 }
299
300 static int ena_get_coalesce(struct net_device *net_dev,
301 struct ethtool_coalesce *coalesce)
302 {
303 struct ena_adapter *adapter = netdev_priv(net_dev);
304 struct ena_com_dev *ena_dev = adapter->ena_dev;
305 struct ena_intr_moder_entry intr_moder_entry;
306
307 if (!ena_com_interrupt_moderation_supported(ena_dev)) {
308 /* the devie doesn't support interrupt moderation */
309 return -EOPNOTSUPP;
310 }
311 coalesce->tx_coalesce_usecs =
312 ena_com_get_nonadaptive_moderation_interval_tx(ena_dev) /
313 ena_dev->intr_delay_resolution;
314 if (!ena_com_get_adaptive_moderation_enabled(ena_dev)) {
315 coalesce->rx_coalesce_usecs =
316 ena_com_get_nonadaptive_moderation_interval_rx(ena_dev)
317 / ena_dev->intr_delay_resolution;
318 } else {
319 ena_com_get_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_LOWEST, &intr_moder_entry);
320 coalesce->rx_coalesce_usecs_low = intr_moder_entry.intr_moder_interval;
321 coalesce->rx_max_coalesced_frames_low = intr_moder_entry.pkts_per_interval;
322
323 ena_com_get_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_MID, &intr_moder_entry);
324 coalesce->rx_coalesce_usecs = intr_moder_entry.intr_moder_interval;
325 coalesce->rx_max_coalesced_frames = intr_moder_entry.pkts_per_interval;
326
327 ena_com_get_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_HIGHEST, &intr_moder_entry);
328 coalesce->rx_coalesce_usecs_high = intr_moder_entry.intr_moder_interval;
329 coalesce->rx_max_coalesced_frames_high = intr_moder_entry.pkts_per_interval;
330 }
331 coalesce->use_adaptive_rx_coalesce =
332 ena_com_get_adaptive_moderation_enabled(ena_dev);
333
334 return 0;
335 }
336
337 static void ena_update_tx_rings_intr_moderation(struct ena_adapter *adapter)
338 {
339 unsigned int val;
340 int i;
341
342 val = ena_com_get_nonadaptive_moderation_interval_tx(adapter->ena_dev);
343
344 for (i = 0; i < adapter->num_queues; i++)
345 adapter->tx_ring[i].smoothed_interval = val;
346 }
347
348 static int ena_set_coalesce(struct net_device *net_dev,
349 struct ethtool_coalesce *coalesce)
350 {
351 struct ena_adapter *adapter = netdev_priv(net_dev);
352 struct ena_com_dev *ena_dev = adapter->ena_dev;
353 struct ena_intr_moder_entry intr_moder_entry;
354 int rc;
355
356 if (!ena_com_interrupt_moderation_supported(ena_dev)) {
357 /* the devie doesn't support interrupt moderation */
358 return -EOPNOTSUPP;
359 }
360
361 if (coalesce->rx_coalesce_usecs_irq ||
362 coalesce->rx_max_coalesced_frames_irq ||
363 coalesce->tx_coalesce_usecs_irq ||
364 coalesce->tx_max_coalesced_frames ||
365 coalesce->tx_max_coalesced_frames_irq ||
366 coalesce->stats_block_coalesce_usecs ||
367 coalesce->use_adaptive_tx_coalesce ||
368 coalesce->pkt_rate_low ||
369 coalesce->tx_coalesce_usecs_low ||
370 coalesce->tx_max_coalesced_frames_low ||
371 coalesce->pkt_rate_high ||
372 coalesce->tx_coalesce_usecs_high ||
373 coalesce->tx_max_coalesced_frames_high ||
374 coalesce->rate_sample_interval)
375 return -EINVAL;
376
377 rc = ena_com_update_nonadaptive_moderation_interval_tx(ena_dev,
378 coalesce->tx_coalesce_usecs);
379 if (rc)
380 return rc;
381
382 ena_update_tx_rings_intr_moderation(adapter);
383
384 if (ena_com_get_adaptive_moderation_enabled(ena_dev)) {
385 if (!coalesce->use_adaptive_rx_coalesce) {
386 ena_com_disable_adaptive_moderation(ena_dev);
387 rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev,
388 coalesce->rx_coalesce_usecs);
389 return rc;
390 }
391 } else { /* was in non-adaptive mode */
392 if (coalesce->use_adaptive_rx_coalesce) {
393 ena_com_enable_adaptive_moderation(ena_dev);
394 } else {
395 rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev,
396 coalesce->rx_coalesce_usecs);
397 return rc;
398 }
399 }
400
401 intr_moder_entry.intr_moder_interval = coalesce->rx_coalesce_usecs_low;
402 intr_moder_entry.pkts_per_interval = coalesce->rx_max_coalesced_frames_low;
403 intr_moder_entry.bytes_per_interval = ENA_INTR_BYTE_COUNT_NOT_SUPPORTED;
404 ena_com_init_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_LOWEST, &intr_moder_entry);
405
406 intr_moder_entry.intr_moder_interval = coalesce->rx_coalesce_usecs;
407 intr_moder_entry.pkts_per_interval = coalesce->rx_max_coalesced_frames;
408 intr_moder_entry.bytes_per_interval = ENA_INTR_BYTE_COUNT_NOT_SUPPORTED;
409 ena_com_init_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_MID, &intr_moder_entry);
410
411 intr_moder_entry.intr_moder_interval = coalesce->rx_coalesce_usecs_high;
412 intr_moder_entry.pkts_per_interval = coalesce->rx_max_coalesced_frames_high;
413 intr_moder_entry.bytes_per_interval = ENA_INTR_BYTE_COUNT_NOT_SUPPORTED;
414 ena_com_init_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_HIGHEST, &intr_moder_entry);
415
416 return 0;
417 }
418
419 static u32 ena_get_msglevel(struct net_device *netdev)
420 {
421 struct ena_adapter *adapter = netdev_priv(netdev);
422
423 return adapter->msg_enable;
424 }
425
426 static void ena_set_msglevel(struct net_device *netdev, u32 value)
427 {
428 struct ena_adapter *adapter = netdev_priv(netdev);
429
430 adapter->msg_enable = value;
431 }
432
433 static void ena_get_drvinfo(struct net_device *dev,
434 struct ethtool_drvinfo *info)
435 {
436 struct ena_adapter *adapter = netdev_priv(dev);
437
438 strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
439 strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
440 strlcpy(info->bus_info, pci_name(adapter->pdev),
441 sizeof(info->bus_info));
442 }
443
444 static void ena_get_ringparam(struct net_device *netdev,
445 struct ethtool_ringparam *ring)
446 {
447 struct ena_adapter *adapter = netdev_priv(netdev);
448 struct ena_ring *tx_ring = &adapter->tx_ring[0];
449 struct ena_ring *rx_ring = &adapter->rx_ring[0];
450
451 ring->rx_max_pending = rx_ring->ring_size;
452 ring->tx_max_pending = tx_ring->ring_size;
453 ring->rx_pending = rx_ring->ring_size;
454 ring->tx_pending = tx_ring->ring_size;
455 }
456
457 static u32 ena_flow_hash_to_flow_type(u16 hash_fields)
458 {
459 u32 data = 0;
460
461 if (hash_fields & ENA_ADMIN_RSS_L2_DA)
462 data |= RXH_L2DA;
463
464 if (hash_fields & ENA_ADMIN_RSS_L3_DA)
465 data |= RXH_IP_DST;
466
467 if (hash_fields & ENA_ADMIN_RSS_L3_SA)
468 data |= RXH_IP_SRC;
469
470 if (hash_fields & ENA_ADMIN_RSS_L4_DP)
471 data |= RXH_L4_B_2_3;
472
473 if (hash_fields & ENA_ADMIN_RSS_L4_SP)
474 data |= RXH_L4_B_0_1;
475
476 return data;
477 }
478
479 static u16 ena_flow_data_to_flow_hash(u32 hash_fields)
480 {
481 u16 data = 0;
482
483 if (hash_fields & RXH_L2DA)
484 data |= ENA_ADMIN_RSS_L2_DA;
485
486 if (hash_fields & RXH_IP_DST)
487 data |= ENA_ADMIN_RSS_L3_DA;
488
489 if (hash_fields & RXH_IP_SRC)
490 data |= ENA_ADMIN_RSS_L3_SA;
491
492 if (hash_fields & RXH_L4_B_2_3)
493 data |= ENA_ADMIN_RSS_L4_DP;
494
495 if (hash_fields & RXH_L4_B_0_1)
496 data |= ENA_ADMIN_RSS_L4_SP;
497
498 return data;
499 }
500
501 static int ena_get_rss_hash(struct ena_com_dev *ena_dev,
502 struct ethtool_rxnfc *cmd)
503 {
504 enum ena_admin_flow_hash_proto proto;
505 u16 hash_fields;
506 int rc;
507
508 cmd->data = 0;
509
510 switch (cmd->flow_type) {
511 case TCP_V4_FLOW:
512 proto = ENA_ADMIN_RSS_TCP4;
513 break;
514 case UDP_V4_FLOW:
515 proto = ENA_ADMIN_RSS_UDP4;
516 break;
517 case TCP_V6_FLOW:
518 proto = ENA_ADMIN_RSS_TCP6;
519 break;
520 case UDP_V6_FLOW:
521 proto = ENA_ADMIN_RSS_UDP6;
522 break;
523 case IPV4_FLOW:
524 proto = ENA_ADMIN_RSS_IP4;
525 break;
526 case IPV6_FLOW:
527 proto = ENA_ADMIN_RSS_IP6;
528 break;
529 case ETHER_FLOW:
530 proto = ENA_ADMIN_RSS_NOT_IP;
531 break;
532 case AH_V4_FLOW:
533 case ESP_V4_FLOW:
534 case AH_V6_FLOW:
535 case ESP_V6_FLOW:
536 case SCTP_V4_FLOW:
537 case AH_ESP_V4_FLOW:
538 return -EOPNOTSUPP;
539 default:
540 return -EINVAL;
541 }
542
543 rc = ena_com_get_hash_ctrl(ena_dev, proto, &hash_fields);
544 if (rc)
545 return rc;
546
547 cmd->data = ena_flow_hash_to_flow_type(hash_fields);
548
549 return 0;
550 }
551
552 static int ena_set_rss_hash(struct ena_com_dev *ena_dev,
553 struct ethtool_rxnfc *cmd)
554 {
555 enum ena_admin_flow_hash_proto proto;
556 u16 hash_fields;
557
558 switch (cmd->flow_type) {
559 case TCP_V4_FLOW:
560 proto = ENA_ADMIN_RSS_TCP4;
561 break;
562 case UDP_V4_FLOW:
563 proto = ENA_ADMIN_RSS_UDP4;
564 break;
565 case TCP_V6_FLOW:
566 proto = ENA_ADMIN_RSS_TCP6;
567 break;
568 case UDP_V6_FLOW:
569 proto = ENA_ADMIN_RSS_UDP6;
570 break;
571 case IPV4_FLOW:
572 proto = ENA_ADMIN_RSS_IP4;
573 break;
574 case IPV6_FLOW:
575 proto = ENA_ADMIN_RSS_IP6;
576 break;
577 case ETHER_FLOW:
578 proto = ENA_ADMIN_RSS_NOT_IP;
579 break;
580 case AH_V4_FLOW:
581 case ESP_V4_FLOW:
582 case AH_V6_FLOW:
583 case ESP_V6_FLOW:
584 case SCTP_V4_FLOW:
585 case AH_ESP_V4_FLOW:
586 return -EOPNOTSUPP;
587 default:
588 return -EINVAL;
589 }
590
591 hash_fields = ena_flow_data_to_flow_hash(cmd->data);
592
593 return ena_com_fill_hash_ctrl(ena_dev, proto, hash_fields);
594 }
595
596 static int ena_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info)
597 {
598 struct ena_adapter *adapter = netdev_priv(netdev);
599 int rc = 0;
600
601 switch (info->cmd) {
602 case ETHTOOL_SRXFH:
603 rc = ena_set_rss_hash(adapter->ena_dev, info);
604 break;
605 case ETHTOOL_SRXCLSRLDEL:
606 case ETHTOOL_SRXCLSRLINS:
607 default:
608 netif_err(adapter, drv, netdev,
609 "Command parameter %d is not supported\n", info->cmd);
610 rc = -EOPNOTSUPP;
611 }
612
613 return rc;
614 }
615
616 static int ena_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
617 u32 *rules)
618 {
619 struct ena_adapter *adapter = netdev_priv(netdev);
620 int rc = 0;
621
622 switch (info->cmd) {
623 case ETHTOOL_GRXRINGS:
624 info->data = adapter->num_queues;
625 rc = 0;
626 break;
627 case ETHTOOL_GRXFH:
628 rc = ena_get_rss_hash(adapter->ena_dev, info);
629 break;
630 case ETHTOOL_GRXCLSRLCNT:
631 case ETHTOOL_GRXCLSRULE:
632 case ETHTOOL_GRXCLSRLALL:
633 default:
634 netif_err(adapter, drv, netdev,
635 "Command parameter %d is not supported\n", info->cmd);
636 rc = -EOPNOTSUPP;
637 }
638
639 return rc;
640 }
641
642 static u32 ena_get_rxfh_indir_size(struct net_device *netdev)
643 {
644 return ENA_RX_RSS_TABLE_SIZE;
645 }
646
647 static u32 ena_get_rxfh_key_size(struct net_device *netdev)
648 {
649 return ENA_HASH_KEY_SIZE;
650 }
651
652 static int ena_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
653 u8 *hfunc)
654 {
655 struct ena_adapter *adapter = netdev_priv(netdev);
656 enum ena_admin_hash_functions ena_func;
657 u8 func;
658 int rc;
659
660 rc = ena_com_indirect_table_get(adapter->ena_dev, indir);
661 if (rc)
662 return rc;
663
664 rc = ena_com_get_hash_function(adapter->ena_dev, &ena_func, key);
665 if (rc)
666 return rc;
667
668 switch (ena_func) {
669 case ENA_ADMIN_TOEPLITZ:
670 func = ETH_RSS_HASH_TOP;
671 break;
672 case ENA_ADMIN_CRC32:
673 func = ETH_RSS_HASH_XOR;
674 break;
675 default:
676 netif_err(adapter, drv, netdev,
677 "Command parameter is not supported\n");
678 return -EOPNOTSUPP;
679 }
680
681 if (hfunc)
682 *hfunc = func;
683
684 return rc;
685 }
686
687 static int ena_set_rxfh(struct net_device *netdev, const u32 *indir,
688 const u8 *key, const u8 hfunc)
689 {
690 struct ena_adapter *adapter = netdev_priv(netdev);
691 struct ena_com_dev *ena_dev = adapter->ena_dev;
692 enum ena_admin_hash_functions func;
693 int rc, i;
694
695 if (indir) {
696 for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) {
697 rc = ena_com_indirect_table_fill_entry(ena_dev,
698 ENA_IO_RXQ_IDX(indir[i]),
699 i);
700 if (unlikely(rc)) {
701 netif_err(adapter, drv, netdev,
702 "Cannot fill indirect table (index is too large)\n");
703 return rc;
704 }
705 }
706
707 rc = ena_com_indirect_table_set(ena_dev);
708 if (rc) {
709 netif_err(adapter, drv, netdev,
710 "Cannot set indirect table\n");
711 return rc == -EPERM ? -EOPNOTSUPP : rc;
712 }
713 }
714
715 switch (hfunc) {
716 case ETH_RSS_HASH_TOP:
717 func = ENA_ADMIN_TOEPLITZ;
718 break;
719 case ETH_RSS_HASH_XOR:
720 func = ENA_ADMIN_CRC32;
721 break;
722 default:
723 netif_err(adapter, drv, netdev, "Unsupported hfunc %d\n",
724 hfunc);
725 return -EOPNOTSUPP;
726 }
727
728 if (key) {
729 rc = ena_com_fill_hash_function(ena_dev, func, key,
730 ENA_HASH_KEY_SIZE,
731 0xFFFFFFFF);
732 if (unlikely(rc)) {
733 netif_err(adapter, drv, netdev, "Cannot fill key\n");
734 return rc == -EPERM ? -EOPNOTSUPP : rc;
735 }
736 }
737
738 return 0;
739 }
740
741 static void ena_get_channels(struct net_device *netdev,
742 struct ethtool_channels *channels)
743 {
744 struct ena_adapter *adapter = netdev_priv(netdev);
745
746 channels->max_rx = adapter->num_queues;
747 channels->max_tx = adapter->num_queues;
748 channels->max_other = 0;
749 channels->max_combined = 0;
750 channels->rx_count = adapter->num_queues;
751 channels->tx_count = adapter->num_queues;
752 channels->other_count = 0;
753 channels->combined_count = 0;
754 }
755
756 static int ena_get_tunable(struct net_device *netdev,
757 const struct ethtool_tunable *tuna, void *data)
758 {
759 struct ena_adapter *adapter = netdev_priv(netdev);
760 int ret = 0;
761
762 switch (tuna->id) {
763 case ETHTOOL_RX_COPYBREAK:
764 *(u32 *)data = adapter->rx_copybreak;
765 break;
766 default:
767 ret = -EINVAL;
768 break;
769 }
770
771 return ret;
772 }
773
774 static int ena_set_tunable(struct net_device *netdev,
775 const struct ethtool_tunable *tuna,
776 const void *data)
777 {
778 struct ena_adapter *adapter = netdev_priv(netdev);
779 int ret = 0;
780 u32 len;
781
782 switch (tuna->id) {
783 case ETHTOOL_RX_COPYBREAK:
784 len = *(u32 *)data;
785 if (len > adapter->netdev->mtu) {
786 ret = -EINVAL;
787 break;
788 }
789 adapter->rx_copybreak = len;
790 break;
791 default:
792 ret = -EINVAL;
793 break;
794 }
795
796 return ret;
797 }
798
799 static const struct ethtool_ops ena_ethtool_ops = {
800 .get_link_ksettings = ena_get_link_ksettings,
801 .get_drvinfo = ena_get_drvinfo,
802 .get_msglevel = ena_get_msglevel,
803 .set_msglevel = ena_set_msglevel,
804 .get_link = ethtool_op_get_link,
805 .get_coalesce = ena_get_coalesce,
806 .set_coalesce = ena_set_coalesce,
807 .get_ringparam = ena_get_ringparam,
808 .get_sset_count = ena_get_sset_count,
809 .get_strings = ena_get_strings,
810 .get_ethtool_stats = ena_get_ethtool_stats,
811 .get_rxnfc = ena_get_rxnfc,
812 .set_rxnfc = ena_set_rxnfc,
813 .get_rxfh_indir_size = ena_get_rxfh_indir_size,
814 .get_rxfh_key_size = ena_get_rxfh_key_size,
815 .get_rxfh = ena_get_rxfh,
816 .set_rxfh = ena_set_rxfh,
817 .get_channels = ena_get_channels,
818 .get_tunable = ena_get_tunable,
819 .set_tunable = ena_set_tunable,
820 };
821
822 void ena_set_ethtool_ops(struct net_device *netdev)
823 {
824 netdev->ethtool_ops = &ena_ethtool_ops;
825 }
826
827 static void ena_dump_stats_ex(struct ena_adapter *adapter, u8 *buf)
828 {
829 struct net_device *netdev = adapter->netdev;
830 u8 *strings_buf;
831 u64 *data_buf;
832 int strings_num;
833 int i, rc;
834
835 strings_num = ena_get_sset_count(netdev, ETH_SS_STATS);
836 if (strings_num <= 0) {
837 netif_err(adapter, drv, netdev, "Can't get stats num\n");
838 return;
839 }
840
841 strings_buf = devm_kzalloc(&adapter->pdev->dev,
842 strings_num * ETH_GSTRING_LEN,
843 GFP_ATOMIC);
844 if (!strings_buf) {
845 netif_err(adapter, drv, netdev,
846 "failed to alloc strings_buf\n");
847 return;
848 }
849
850 data_buf = devm_kzalloc(&adapter->pdev->dev,
851 strings_num * sizeof(u64),
852 GFP_ATOMIC);
853 if (!data_buf) {
854 netif_err(adapter, drv, netdev,
855 "failed to allocate data buf\n");
856 devm_kfree(&adapter->pdev->dev, strings_buf);
857 return;
858 }
859
860 ena_get_strings(netdev, ETH_SS_STATS, strings_buf);
861 ena_get_ethtool_stats(netdev, NULL, data_buf);
862
863 /* If there is a buffer, dump stats, otherwise print them to dmesg */
864 if (buf)
865 for (i = 0; i < strings_num; i++) {
866 rc = snprintf(buf, ETH_GSTRING_LEN + sizeof(u64),
867 "%s %llu\n",
868 strings_buf + i * ETH_GSTRING_LEN,
869 data_buf[i]);
870 buf += rc;
871 }
872 else
873 for (i = 0; i < strings_num; i++)
874 netif_err(adapter, drv, netdev, "%s: %llu\n",
875 strings_buf + i * ETH_GSTRING_LEN,
876 data_buf[i]);
877
878 devm_kfree(&adapter->pdev->dev, strings_buf);
879 devm_kfree(&adapter->pdev->dev, data_buf);
880 }
881
882 void ena_dump_stats_to_buf(struct ena_adapter *adapter, u8 *buf)
883 {
884 if (!buf)
885 return;
886
887 ena_dump_stats_ex(adapter, buf);
888 }
889
890 void ena_dump_stats_to_dmesg(struct ena_adapter *adapter)
891 {
892 ena_dump_stats_ex(adapter, NULL);
893 }
CRIS linux kernel tree