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33#include <linux/pci.h>
34
35#include "ena_netdev.h"
36
37struct 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
61static 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
71static 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(llq_buffer_copy),
85 ENA_STAT_TX_ENTRY(missed_tx),
86};
87
88static const struct ena_stats ena_stats_rx_strings[] = {
89 ENA_STAT_RX_ENTRY(cnt),
90 ENA_STAT_RX_ENTRY(bytes),
91 ENA_STAT_RX_ENTRY(refil_partial),
92 ENA_STAT_RX_ENTRY(bad_csum),
93 ENA_STAT_RX_ENTRY(page_alloc_fail),
94 ENA_STAT_RX_ENTRY(skb_alloc_fail),
95 ENA_STAT_RX_ENTRY(dma_mapping_err),
96 ENA_STAT_RX_ENTRY(bad_desc_num),
97 ENA_STAT_RX_ENTRY(rx_copybreak_pkt),
98 ENA_STAT_RX_ENTRY(bad_req_id),
99 ENA_STAT_RX_ENTRY(empty_rx_ring),
100 ENA_STAT_RX_ENTRY(csum_unchecked),
101};
102
103static const struct ena_stats ena_stats_ena_com_strings[] = {
104 ENA_STAT_ENA_COM_ENTRY(aborted_cmd),
105 ENA_STAT_ENA_COM_ENTRY(submitted_cmd),
106 ENA_STAT_ENA_COM_ENTRY(completed_cmd),
107 ENA_STAT_ENA_COM_ENTRY(out_of_space),
108 ENA_STAT_ENA_COM_ENTRY(no_completion),
109};
110
111#define ENA_STATS_ARRAY_GLOBAL ARRAY_SIZE(ena_stats_global_strings)
112#define ENA_STATS_ARRAY_TX ARRAY_SIZE(ena_stats_tx_strings)
113#define ENA_STATS_ARRAY_RX ARRAY_SIZE(ena_stats_rx_strings)
114#define ENA_STATS_ARRAY_ENA_COM ARRAY_SIZE(ena_stats_ena_com_strings)
115
116static void ena_safe_update_stat(u64 *src, u64 *dst,
117 struct u64_stats_sync *syncp)
118{
119 unsigned int start;
120
121 do {
122 start = u64_stats_fetch_begin_irq(syncp);
123 *(dst) = *src;
124 } while (u64_stats_fetch_retry_irq(syncp, start));
125}
126
127static void ena_queue_stats(struct ena_adapter *adapter, u64 **data)
128{
129 const struct ena_stats *ena_stats;
130 struct ena_ring *ring;
131
132 u64 *ptr;
133 int i, j;
134
135 for (i = 0; i < adapter->num_queues; i++) {
136
137 ring = &adapter->tx_ring[i];
138
139 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
140 ena_stats = &ena_stats_tx_strings[j];
141
142 ptr = (u64 *)((uintptr_t)&ring->tx_stats +
143 (uintptr_t)ena_stats->stat_offset);
144
145 ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
146 }
147
148
149 ring = &adapter->rx_ring[i];
150
151 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
152 ena_stats = &ena_stats_rx_strings[j];
153
154 ptr = (u64 *)((uintptr_t)&ring->rx_stats +
155 (uintptr_t)ena_stats->stat_offset);
156
157 ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
158 }
159 }
160}
161
162static void ena_dev_admin_queue_stats(struct ena_adapter *adapter, u64 **data)
163{
164 const struct ena_stats *ena_stats;
165 u32 *ptr;
166 int i;
167
168 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
169 ena_stats = &ena_stats_ena_com_strings[i];
170
171 ptr = (u32 *)((uintptr_t)&adapter->ena_dev->admin_queue.stats +
172 (uintptr_t)ena_stats->stat_offset);
173
174 *(*data)++ = *ptr;
175 }
176}
177
178static void ena_get_ethtool_stats(struct net_device *netdev,
179 struct ethtool_stats *stats,
180 u64 *data)
181{
182 struct ena_adapter *adapter = netdev_priv(netdev);
183 const struct ena_stats *ena_stats;
184 u64 *ptr;
185 int i;
186
187 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
188 ena_stats = &ena_stats_global_strings[i];
189
190 ptr = (u64 *)((uintptr_t)&adapter->dev_stats +
191 (uintptr_t)ena_stats->stat_offset);
192
193 ena_safe_update_stat(ptr, data++, &adapter->syncp);
194 }
195
196 ena_queue_stats(adapter, &data);
197 ena_dev_admin_queue_stats(adapter, &data);
198}
199
200int ena_get_sset_count(struct net_device *netdev, int sset)
201{
202 struct ena_adapter *adapter = netdev_priv(netdev);
203
204 if (sset != ETH_SS_STATS)
205 return -EOPNOTSUPP;
206
207 return adapter->num_queues * (ENA_STATS_ARRAY_TX + ENA_STATS_ARRAY_RX)
208 + ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENA_COM;
209}
210
211static void ena_queue_strings(struct ena_adapter *adapter, u8 **data)
212{
213 const struct ena_stats *ena_stats;
214 int i, j;
215
216 for (i = 0; i < adapter->num_queues; i++) {
217
218 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
219 ena_stats = &ena_stats_tx_strings[j];
220
221 snprintf(*data, ETH_GSTRING_LEN,
222 "queue_%u_tx_%s", i, ena_stats->name);
223 (*data) += ETH_GSTRING_LEN;
224 }
225
226 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
227 ena_stats = &ena_stats_rx_strings[j];
228
229 snprintf(*data, ETH_GSTRING_LEN,
230 "queue_%u_rx_%s", i, ena_stats->name);
231 (*data) += ETH_GSTRING_LEN;
232 }
233 }
234}
235
236static void ena_com_dev_strings(u8 **data)
237{
238 const struct ena_stats *ena_stats;
239 int i;
240
241 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
242 ena_stats = &ena_stats_ena_com_strings[i];
243
244 snprintf(*data, ETH_GSTRING_LEN,
245 "ena_admin_q_%s", ena_stats->name);
246 (*data) += ETH_GSTRING_LEN;
247 }
248}
249
250static void ena_get_strings(struct net_device *netdev, u32 sset, u8 *data)
251{
252 struct ena_adapter *adapter = netdev_priv(netdev);
253 const struct ena_stats *ena_stats;
254 int i;
255
256 if (sset != ETH_SS_STATS)
257 return;
258
259 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
260 ena_stats = &ena_stats_global_strings[i];
261
262 memcpy(data, ena_stats->name, ETH_GSTRING_LEN);
263 data += ETH_GSTRING_LEN;
264 }
265
266 ena_queue_strings(adapter, &data);
267 ena_com_dev_strings(&data);
268}
269
270static int ena_get_link_ksettings(struct net_device *netdev,
271 struct ethtool_link_ksettings *link_ksettings)
272{
273 struct ena_adapter *adapter = netdev_priv(netdev);
274 struct ena_com_dev *ena_dev = adapter->ena_dev;
275 struct ena_admin_get_feature_link_desc *link;
276 struct ena_admin_get_feat_resp feat_resp;
277 int rc;
278
279 rc = ena_com_get_link_params(ena_dev, &feat_resp);
280 if (rc)
281 return rc;
282
283 link = &feat_resp.u.link;
284 link_ksettings->base.speed = link->speed;
285
286 if (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) {
287 ethtool_link_ksettings_add_link_mode(link_ksettings,
288 supported, Autoneg);
289 ethtool_link_ksettings_add_link_mode(link_ksettings,
290 supported, Autoneg);
291 }
292
293 link_ksettings->base.autoneg =
294 (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) ?
295 AUTONEG_ENABLE : AUTONEG_DISABLE;
296
297 link_ksettings->base.duplex = DUPLEX_FULL;
298
299 return 0;
300}
301
302static int ena_get_coalesce(struct net_device *net_dev,
303 struct ethtool_coalesce *coalesce)
304{
305 struct ena_adapter *adapter = netdev_priv(net_dev);
306 struct ena_com_dev *ena_dev = adapter->ena_dev;
307 struct ena_intr_moder_entry intr_moder_entry;
308
309 if (!ena_com_interrupt_moderation_supported(ena_dev)) {
310
311 return -EOPNOTSUPP;
312 }
313 coalesce->tx_coalesce_usecs =
314 ena_com_get_nonadaptive_moderation_interval_tx(ena_dev) /
315 ena_dev->intr_delay_resolution;
316 if (!ena_com_get_adaptive_moderation_enabled(ena_dev)) {
317 coalesce->rx_coalesce_usecs =
318 ena_com_get_nonadaptive_moderation_interval_rx(ena_dev)
319 / ena_dev->intr_delay_resolution;
320 } else {
321 ena_com_get_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_LOWEST, &intr_moder_entry);
322 coalesce->rx_coalesce_usecs_low = intr_moder_entry.intr_moder_interval;
323 coalesce->rx_max_coalesced_frames_low = intr_moder_entry.pkts_per_interval;
324
325 ena_com_get_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_MID, &intr_moder_entry);
326 coalesce->rx_coalesce_usecs = intr_moder_entry.intr_moder_interval;
327 coalesce->rx_max_coalesced_frames = intr_moder_entry.pkts_per_interval;
328
329 ena_com_get_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_HIGHEST, &intr_moder_entry);
330 coalesce->rx_coalesce_usecs_high = intr_moder_entry.intr_moder_interval;
331 coalesce->rx_max_coalesced_frames_high = intr_moder_entry.pkts_per_interval;
332 }
333 coalesce->use_adaptive_rx_coalesce =
334 ena_com_get_adaptive_moderation_enabled(ena_dev);
335
336 return 0;
337}
338
339static void ena_update_tx_rings_intr_moderation(struct ena_adapter *adapter)
340{
341 unsigned int val;
342 int i;
343
344 val = ena_com_get_nonadaptive_moderation_interval_tx(adapter->ena_dev);
345
346 for (i = 0; i < adapter->num_queues; i++)
347 adapter->tx_ring[i].smoothed_interval = val;
348}
349
350static int ena_set_coalesce(struct net_device *net_dev,
351 struct ethtool_coalesce *coalesce)
352{
353 struct ena_adapter *adapter = netdev_priv(net_dev);
354 struct ena_com_dev *ena_dev = adapter->ena_dev;
355 struct ena_intr_moder_entry intr_moder_entry;
356 int rc;
357
358 if (!ena_com_interrupt_moderation_supported(ena_dev)) {
359
360 return -EOPNOTSUPP;
361 }
362
363 if (coalesce->rx_coalesce_usecs_irq ||
364 coalesce->rx_max_coalesced_frames_irq ||
365 coalesce->tx_coalesce_usecs_irq ||
366 coalesce->tx_max_coalesced_frames ||
367 coalesce->tx_max_coalesced_frames_irq ||
368 coalesce->stats_block_coalesce_usecs ||
369 coalesce->use_adaptive_tx_coalesce ||
370 coalesce->pkt_rate_low ||
371 coalesce->tx_coalesce_usecs_low ||
372 coalesce->tx_max_coalesced_frames_low ||
373 coalesce->pkt_rate_high ||
374 coalesce->tx_coalesce_usecs_high ||
375 coalesce->tx_max_coalesced_frames_high ||
376 coalesce->rate_sample_interval)
377 return -EINVAL;
378
379 rc = ena_com_update_nonadaptive_moderation_interval_tx(ena_dev,
380 coalesce->tx_coalesce_usecs);
381 if (rc)
382 return rc;
383
384 ena_update_tx_rings_intr_moderation(adapter);
385
386 if (ena_com_get_adaptive_moderation_enabled(ena_dev)) {
387 if (!coalesce->use_adaptive_rx_coalesce) {
388 ena_com_disable_adaptive_moderation(ena_dev);
389 rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev,
390 coalesce->rx_coalesce_usecs);
391 return rc;
392 }
393 } else {
394 if (coalesce->use_adaptive_rx_coalesce) {
395 ena_com_enable_adaptive_moderation(ena_dev);
396 } else {
397 rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev,
398 coalesce->rx_coalesce_usecs);
399 return rc;
400 }
401 }
402
403 intr_moder_entry.intr_moder_interval = coalesce->rx_coalesce_usecs_low;
404 intr_moder_entry.pkts_per_interval = coalesce->rx_max_coalesced_frames_low;
405 intr_moder_entry.bytes_per_interval = ENA_INTR_BYTE_COUNT_NOT_SUPPORTED;
406 ena_com_init_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_LOWEST, &intr_moder_entry);
407
408 intr_moder_entry.intr_moder_interval = coalesce->rx_coalesce_usecs;
409 intr_moder_entry.pkts_per_interval = coalesce->rx_max_coalesced_frames;
410 intr_moder_entry.bytes_per_interval = ENA_INTR_BYTE_COUNT_NOT_SUPPORTED;
411 ena_com_init_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_MID, &intr_moder_entry);
412
413 intr_moder_entry.intr_moder_interval = coalesce->rx_coalesce_usecs_high;
414 intr_moder_entry.pkts_per_interval = coalesce->rx_max_coalesced_frames_high;
415 intr_moder_entry.bytes_per_interval = ENA_INTR_BYTE_COUNT_NOT_SUPPORTED;
416 ena_com_init_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_HIGHEST, &intr_moder_entry);
417
418 return 0;
419}
420
421static u32 ena_get_msglevel(struct net_device *netdev)
422{
423 struct ena_adapter *adapter = netdev_priv(netdev);
424
425 return adapter->msg_enable;
426}
427
428static void ena_set_msglevel(struct net_device *netdev, u32 value)
429{
430 struct ena_adapter *adapter = netdev_priv(netdev);
431
432 adapter->msg_enable = value;
433}
434
435static void ena_get_drvinfo(struct net_device *dev,
436 struct ethtool_drvinfo *info)
437{
438 struct ena_adapter *adapter = netdev_priv(dev);
439
440 strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
441 strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
442 strlcpy(info->bus_info, pci_name(adapter->pdev),
443 sizeof(info->bus_info));
444}
445
446static void ena_get_ringparam(struct net_device *netdev,
447 struct ethtool_ringparam *ring)
448{
449 struct ena_adapter *adapter = netdev_priv(netdev);
450 struct ena_ring *tx_ring = &adapter->tx_ring[0];
451 struct ena_ring *rx_ring = &adapter->rx_ring[0];
452
453 ring->rx_max_pending = rx_ring->ring_size;
454 ring->tx_max_pending = tx_ring->ring_size;
455 ring->rx_pending = rx_ring->ring_size;
456 ring->tx_pending = tx_ring->ring_size;
457}
458
459static u32 ena_flow_hash_to_flow_type(u16 hash_fields)
460{
461 u32 data = 0;
462
463 if (hash_fields & ENA_ADMIN_RSS_L2_DA)
464 data |= RXH_L2DA;
465
466 if (hash_fields & ENA_ADMIN_RSS_L3_DA)
467 data |= RXH_IP_DST;
468
469 if (hash_fields & ENA_ADMIN_RSS_L3_SA)
470 data |= RXH_IP_SRC;
471
472 if (hash_fields & ENA_ADMIN_RSS_L4_DP)
473 data |= RXH_L4_B_2_3;
474
475 if (hash_fields & ENA_ADMIN_RSS_L4_SP)
476 data |= RXH_L4_B_0_1;
477
478 return data;
479}
480
481static u16 ena_flow_data_to_flow_hash(u32 hash_fields)
482{
483 u16 data = 0;
484
485 if (hash_fields & RXH_L2DA)
486 data |= ENA_ADMIN_RSS_L2_DA;
487
488 if (hash_fields & RXH_IP_DST)
489 data |= ENA_ADMIN_RSS_L3_DA;
490
491 if (hash_fields & RXH_IP_SRC)
492 data |= ENA_ADMIN_RSS_L3_SA;
493
494 if (hash_fields & RXH_L4_B_2_3)
495 data |= ENA_ADMIN_RSS_L4_DP;
496
497 if (hash_fields & RXH_L4_B_0_1)
498 data |= ENA_ADMIN_RSS_L4_SP;
499
500 return data;
501}
502
503static int ena_get_rss_hash(struct ena_com_dev *ena_dev,
504 struct ethtool_rxnfc *cmd)
505{
506 enum ena_admin_flow_hash_proto proto;
507 u16 hash_fields;
508 int rc;
509
510 cmd->data = 0;
511
512 switch (cmd->flow_type) {
513 case TCP_V4_FLOW:
514 proto = ENA_ADMIN_RSS_TCP4;
515 break;
516 case UDP_V4_FLOW:
517 proto = ENA_ADMIN_RSS_UDP4;
518 break;
519 case TCP_V6_FLOW:
520 proto = ENA_ADMIN_RSS_TCP6;
521 break;
522 case UDP_V6_FLOW:
523 proto = ENA_ADMIN_RSS_UDP6;
524 break;
525 case IPV4_FLOW:
526 proto = ENA_ADMIN_RSS_IP4;
527 break;
528 case IPV6_FLOW:
529 proto = ENA_ADMIN_RSS_IP6;
530 break;
531 case ETHER_FLOW:
532 proto = ENA_ADMIN_RSS_NOT_IP;
533 break;
534 case AH_V4_FLOW:
535 case ESP_V4_FLOW:
536 case AH_V6_FLOW:
537 case ESP_V6_FLOW:
538 case SCTP_V4_FLOW:
539 case AH_ESP_V4_FLOW:
540 return -EOPNOTSUPP;
541 default:
542 return -EINVAL;
543 }
544
545 rc = ena_com_get_hash_ctrl(ena_dev, proto, &hash_fields);
546 if (rc)
547 return rc;
548
549 cmd->data = ena_flow_hash_to_flow_type(hash_fields);
550
551 return 0;
552}
553
554static int ena_set_rss_hash(struct ena_com_dev *ena_dev,
555 struct ethtool_rxnfc *cmd)
556{
557 enum ena_admin_flow_hash_proto proto;
558 u16 hash_fields;
559
560 switch (cmd->flow_type) {
561 case TCP_V4_FLOW:
562 proto = ENA_ADMIN_RSS_TCP4;
563 break;
564 case UDP_V4_FLOW:
565 proto = ENA_ADMIN_RSS_UDP4;
566 break;
567 case TCP_V6_FLOW:
568 proto = ENA_ADMIN_RSS_TCP6;
569 break;
570 case UDP_V6_FLOW:
571 proto = ENA_ADMIN_RSS_UDP6;
572 break;
573 case IPV4_FLOW:
574 proto = ENA_ADMIN_RSS_IP4;
575 break;
576 case IPV6_FLOW:
577 proto = ENA_ADMIN_RSS_IP6;
578 break;
579 case ETHER_FLOW:
580 proto = ENA_ADMIN_RSS_NOT_IP;
581 break;
582 case AH_V4_FLOW:
583 case ESP_V4_FLOW:
584 case AH_V6_FLOW:
585 case ESP_V6_FLOW:
586 case SCTP_V4_FLOW:
587 case AH_ESP_V4_FLOW:
588 return -EOPNOTSUPP;
589 default:
590 return -EINVAL;
591 }
592
593 hash_fields = ena_flow_data_to_flow_hash(cmd->data);
594
595 return ena_com_fill_hash_ctrl(ena_dev, proto, hash_fields);
596}
597
598static int ena_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info)
599{
600 struct ena_adapter *adapter = netdev_priv(netdev);
601 int rc = 0;
602
603 switch (info->cmd) {
604 case ETHTOOL_SRXFH:
605 rc = ena_set_rss_hash(adapter->ena_dev, info);
606 break;
607 case ETHTOOL_SRXCLSRLDEL:
608 case ETHTOOL_SRXCLSRLINS:
609 default:
610 netif_err(adapter, drv, netdev,
611 "Command parameter %d is not supported\n", info->cmd);
612 rc = -EOPNOTSUPP;
613 }
614
615 return rc;
616}
617
618static int ena_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
619 u32 *rules)
620{
621 struct ena_adapter *adapter = netdev_priv(netdev);
622 int rc = 0;
623
624 switch (info->cmd) {
625 case ETHTOOL_GRXRINGS:
626 info->data = adapter->num_queues;
627 rc = 0;
628 break;
629 case ETHTOOL_GRXFH:
630 rc = ena_get_rss_hash(adapter->ena_dev, info);
631 break;
632 case ETHTOOL_GRXCLSRLCNT:
633 case ETHTOOL_GRXCLSRULE:
634 case ETHTOOL_GRXCLSRLALL:
635 default:
636 netif_err(adapter, drv, netdev,
637 "Command parameter %d is not supported\n", info->cmd);
638 rc = -EOPNOTSUPP;
639 }
640
641 return rc;
642}
643
644static u32 ena_get_rxfh_indir_size(struct net_device *netdev)
645{
646 return ENA_RX_RSS_TABLE_SIZE;
647}
648
649static u32 ena_get_rxfh_key_size(struct net_device *netdev)
650{
651 return ENA_HASH_KEY_SIZE;
652}
653
654static int ena_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
655 u8 *hfunc)
656{
657 struct ena_adapter *adapter = netdev_priv(netdev);
658 enum ena_admin_hash_functions ena_func;
659 u8 func;
660 int rc;
661
662 rc = ena_com_indirect_table_get(adapter->ena_dev, indir);
663 if (rc)
664 return rc;
665
666 rc = ena_com_get_hash_function(adapter->ena_dev, &ena_func, key);
667 if (rc)
668 return rc;
669
670 switch (ena_func) {
671 case ENA_ADMIN_TOEPLITZ:
672 func = ETH_RSS_HASH_TOP;
673 break;
674 case ENA_ADMIN_CRC32:
675 func = ETH_RSS_HASH_XOR;
676 break;
677 default:
678 netif_err(adapter, drv, netdev,
679 "Command parameter is not supported\n");
680 return -EOPNOTSUPP;
681 }
682
683 if (hfunc)
684 *hfunc = func;
685
686 return rc;
687}
688
689static int ena_set_rxfh(struct net_device *netdev, const u32 *indir,
690 const u8 *key, const u8 hfunc)
691{
692 struct ena_adapter *adapter = netdev_priv(netdev);
693 struct ena_com_dev *ena_dev = adapter->ena_dev;
694 enum ena_admin_hash_functions func;
695 int rc, i;
696
697 if (indir) {
698 for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) {
699 rc = ena_com_indirect_table_fill_entry(ena_dev,
700 ENA_IO_RXQ_IDX(indir[i]),
701 i);
702 if (unlikely(rc)) {
703 netif_err(adapter, drv, netdev,
704 "Cannot fill indirect table (index is too large)\n");
705 return rc;
706 }
707 }
708
709 rc = ena_com_indirect_table_set(ena_dev);
710 if (rc) {
711 netif_err(adapter, drv, netdev,
712 "Cannot set indirect table\n");
713 return rc == -EPERM ? -EOPNOTSUPP : rc;
714 }
715 }
716
717 switch (hfunc) {
718 case ETH_RSS_HASH_TOP:
719 func = ENA_ADMIN_TOEPLITZ;
720 break;
721 case ETH_RSS_HASH_XOR:
722 func = ENA_ADMIN_CRC32;
723 break;
724 default:
725 netif_err(adapter, drv, netdev, "Unsupported hfunc %d\n",
726 hfunc);
727 return -EOPNOTSUPP;
728 }
729
730 if (key) {
731 rc = ena_com_fill_hash_function(ena_dev, func, key,
732 ENA_HASH_KEY_SIZE,
733 0xFFFFFFFF);
734 if (unlikely(rc)) {
735 netif_err(adapter, drv, netdev, "Cannot fill key\n");
736 return rc == -EPERM ? -EOPNOTSUPP : rc;
737 }
738 }
739
740 return 0;
741}
742
743static void ena_get_channels(struct net_device *netdev,
744 struct ethtool_channels *channels)
745{
746 struct ena_adapter *adapter = netdev_priv(netdev);
747
748 channels->max_rx = adapter->num_queues;
749 channels->max_tx = adapter->num_queues;
750 channels->max_other = 0;
751 channels->max_combined = 0;
752 channels->rx_count = adapter->num_queues;
753 channels->tx_count = adapter->num_queues;
754 channels->other_count = 0;
755 channels->combined_count = 0;
756}
757
758static int ena_get_tunable(struct net_device *netdev,
759 const struct ethtool_tunable *tuna, void *data)
760{
761 struct ena_adapter *adapter = netdev_priv(netdev);
762 int ret = 0;
763
764 switch (tuna->id) {
765 case ETHTOOL_RX_COPYBREAK:
766 *(u32 *)data = adapter->rx_copybreak;
767 break;
768 default:
769 ret = -EINVAL;
770 break;
771 }
772
773 return ret;
774}
775
776static int ena_set_tunable(struct net_device *netdev,
777 const struct ethtool_tunable *tuna,
778 const void *data)
779{
780 struct ena_adapter *adapter = netdev_priv(netdev);
781 int ret = 0;
782 u32 len;
783
784 switch (tuna->id) {
785 case ETHTOOL_RX_COPYBREAK:
786 len = *(u32 *)data;
787 if (len > adapter->netdev->mtu) {
788 ret = -EINVAL;
789 break;
790 }
791 adapter->rx_copybreak = len;
792 break;
793 default:
794 ret = -EINVAL;
795 break;
796 }
797
798 return ret;
799}
800
801static const struct ethtool_ops ena_ethtool_ops = {
802 .get_link_ksettings = ena_get_link_ksettings,
803 .get_drvinfo = ena_get_drvinfo,
804 .get_msglevel = ena_get_msglevel,
805 .set_msglevel = ena_set_msglevel,
806 .get_link = ethtool_op_get_link,
807 .get_coalesce = ena_get_coalesce,
808 .set_coalesce = ena_set_coalesce,
809 .get_ringparam = ena_get_ringparam,
810 .get_sset_count = ena_get_sset_count,
811 .get_strings = ena_get_strings,
812 .get_ethtool_stats = ena_get_ethtool_stats,
813 .get_rxnfc = ena_get_rxnfc,
814 .set_rxnfc = ena_set_rxnfc,
815 .get_rxfh_indir_size = ena_get_rxfh_indir_size,
816 .get_rxfh_key_size = ena_get_rxfh_key_size,
817 .get_rxfh = ena_get_rxfh,
818 .set_rxfh = ena_set_rxfh,
819 .get_channels = ena_get_channels,
820 .get_tunable = ena_get_tunable,
821 .set_tunable = ena_set_tunable,
822};
823
824void ena_set_ethtool_ops(struct net_device *netdev)
825{
826 netdev->ethtool_ops = &ena_ethtool_ops;
827}
828
829static void ena_dump_stats_ex(struct ena_adapter *adapter, u8 *buf)
830{
831 struct net_device *netdev = adapter->netdev;
832 u8 *strings_buf;
833 u64 *data_buf;
834 int strings_num;
835 int i, rc;
836
837 strings_num = ena_get_sset_count(netdev, ETH_SS_STATS);
838 if (strings_num <= 0) {
839 netif_err(adapter, drv, netdev, "Can't get stats num\n");
840 return;
841 }
842
843 strings_buf = devm_kcalloc(&adapter->pdev->dev,
844 ETH_GSTRING_LEN, strings_num,
845 GFP_ATOMIC);
846 if (!strings_buf) {
847 netif_err(adapter, drv, netdev,
848 "failed to alloc strings_buf\n");
849 return;
850 }
851
852 data_buf = devm_kcalloc(&adapter->pdev->dev,
853 strings_num, sizeof(u64),
854 GFP_ATOMIC);
855 if (!data_buf) {
856 netif_err(adapter, drv, netdev,
857 "failed to allocate data buf\n");
858 devm_kfree(&adapter->pdev->dev, strings_buf);
859 return;
860 }
861
862 ena_get_strings(netdev, ETH_SS_STATS, strings_buf);
863 ena_get_ethtool_stats(netdev, NULL, data_buf);
864
865
866 if (buf)
867 for (i = 0; i < strings_num; i++) {
868 rc = snprintf(buf, ETH_GSTRING_LEN + sizeof(u64),
869 "%s %llu\n",
870 strings_buf + i * ETH_GSTRING_LEN,
871 data_buf[i]);
872 buf += rc;
873 }
874 else
875 for (i = 0; i < strings_num; i++)
876 netif_err(adapter, drv, netdev, "%s: %llu\n",
877 strings_buf + i * ETH_GSTRING_LEN,
878 data_buf[i]);
879
880 devm_kfree(&adapter->pdev->dev, strings_buf);
881 devm_kfree(&adapter->pdev->dev, data_buf);
882}
883
884void ena_dump_stats_to_buf(struct ena_adapter *adapter, u8 *buf)
885{
886 if (!buf)
887 return;
888
889 ena_dump_stats_ex(adapter, buf);
890}
891
892void ena_dump_stats_to_dmesg(struct ena_adapter *adapter)
893{
894 ena_dump_stats_ex(adapter, NULL);
895}
896
