1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
2 /*
3 * Copyright 2015-2020 Amazon.com, Inc. or its affiliates. All rights reserved.
4 */
5
6 #include <linux/ethtool.h>
7 #include <linux/pci.h>
8
9 #include "ena_netdev.h"
10 #include "ena_xdp.h"
11
12 struct ena_stats {
13 char name[ETH_GSTRING_LEN];
14 int stat_offset;
15 };
16
17 struct ena_hw_metrics {
18 char name[ETH_GSTRING_LEN];
19 };
20
21 #define ENA_STAT_ENA_COM_ENTRY(stat) { \
22 .name = #stat, \
23 .stat_offset = offsetof(struct ena_com_stats_admin, stat) / sizeof(u64) \
24 }
25
26 #define ENA_STAT_ENTRY(stat, stat_type) { \
27 .name = #stat, \
28 .stat_offset = offsetof(struct ena_stats_##stat_type, stat) / sizeof(u64) \
29 }
30
31 #define ENA_STAT_HW_ENTRY(stat, stat_type) { \
32 .name = #stat, \
33 .stat_offset = offsetof(struct ena_admin_##stat_type, stat) / sizeof(u64) \
34 }
35
36 #define ENA_STAT_RX_ENTRY(stat) \
37 ENA_STAT_ENTRY(stat, rx)
38
39 #define ENA_STAT_TX_ENTRY(stat) \
40 ENA_STAT_ENTRY(stat, tx)
41
42 #define ENA_STAT_GLOBAL_ENTRY(stat) \
43 ENA_STAT_ENTRY(stat, dev)
44
45 #define ENA_STAT_ENI_ENTRY(stat) \
46 ENA_STAT_HW_ENTRY(stat, eni_stats)
47
48 #define ENA_STAT_ENA_SRD_ENTRY(stat) \
49 ENA_STAT_HW_ENTRY(stat, ena_srd_stats)
50
51 #define ENA_STAT_ENA_SRD_MODE_ENTRY(stat) { \
52 .name = #stat, \
53 .stat_offset = offsetof(struct ena_admin_ena_srd_info, flags) / sizeof(u64) \
54 }
55
56 #define ENA_METRIC_ENI_ENTRY(stat) { \
57 .name = #stat \
58 }
59
60 static const struct ena_stats ena_stats_global_strings[] = {
61 ENA_STAT_GLOBAL_ENTRY(tx_timeout),
62 ENA_STAT_GLOBAL_ENTRY(suspend),
63 ENA_STAT_GLOBAL_ENTRY(resume),
64 ENA_STAT_GLOBAL_ENTRY(wd_expired),
65 ENA_STAT_GLOBAL_ENTRY(interface_up),
66 ENA_STAT_GLOBAL_ENTRY(interface_down),
67 ENA_STAT_GLOBAL_ENTRY(admin_q_pause),
68 ENA_STAT_GLOBAL_ENTRY(reset_fail),
69 };
70
71 /* A partial list of hw stats. Used when admin command
72 * with type ENA_ADMIN_GET_STATS_TYPE_CUSTOMER_METRICS is not supported
73 */
74 static const struct ena_stats ena_stats_eni_strings[] = {
75 ENA_STAT_ENI_ENTRY(bw_in_allowance_exceeded),
76 ENA_STAT_ENI_ENTRY(bw_out_allowance_exceeded),
77 ENA_STAT_ENI_ENTRY(pps_allowance_exceeded),
78 ENA_STAT_ENI_ENTRY(conntrack_allowance_exceeded),
79 ENA_STAT_ENI_ENTRY(linklocal_allowance_exceeded),
80 };
81
82 static const struct ena_hw_metrics ena_hw_stats_strings[] = {
83 ENA_METRIC_ENI_ENTRY(bw_in_allowance_exceeded),
84 ENA_METRIC_ENI_ENTRY(bw_out_allowance_exceeded),
85 ENA_METRIC_ENI_ENTRY(pps_allowance_exceeded),
86 ENA_METRIC_ENI_ENTRY(conntrack_allowance_exceeded),
87 ENA_METRIC_ENI_ENTRY(linklocal_allowance_exceeded),
88 ENA_METRIC_ENI_ENTRY(conntrack_allowance_available),
89 };
90
91 static const struct ena_stats ena_srd_info_strings[] = {
92 ENA_STAT_ENA_SRD_MODE_ENTRY(ena_srd_mode),
93 ENA_STAT_ENA_SRD_ENTRY(ena_srd_tx_pkts),
94 ENA_STAT_ENA_SRD_ENTRY(ena_srd_eligible_tx_pkts),
95 ENA_STAT_ENA_SRD_ENTRY(ena_srd_rx_pkts),
96 ENA_STAT_ENA_SRD_ENTRY(ena_srd_resource_utilization)
97 };
98
99 static const struct ena_stats ena_stats_tx_strings[] = {
100 ENA_STAT_TX_ENTRY(cnt),
101 ENA_STAT_TX_ENTRY(bytes),
102 ENA_STAT_TX_ENTRY(queue_stop),
103 ENA_STAT_TX_ENTRY(queue_wakeup),
104 ENA_STAT_TX_ENTRY(dma_mapping_err),
105 ENA_STAT_TX_ENTRY(linearize),
106 ENA_STAT_TX_ENTRY(linearize_failed),
107 ENA_STAT_TX_ENTRY(napi_comp),
108 ENA_STAT_TX_ENTRY(tx_poll),
109 ENA_STAT_TX_ENTRY(doorbells),
110 ENA_STAT_TX_ENTRY(prepare_ctx_err),
111 ENA_STAT_TX_ENTRY(bad_req_id),
112 ENA_STAT_TX_ENTRY(llq_buffer_copy),
113 ENA_STAT_TX_ENTRY(missed_tx),
114 ENA_STAT_TX_ENTRY(unmask_interrupt),
115 };
116
117 static const struct ena_stats ena_stats_rx_strings[] = {
118 ENA_STAT_RX_ENTRY(cnt),
119 ENA_STAT_RX_ENTRY(bytes),
120 ENA_STAT_RX_ENTRY(rx_copybreak_pkt),
121 ENA_STAT_RX_ENTRY(csum_good),
122 ENA_STAT_RX_ENTRY(refil_partial),
123 ENA_STAT_RX_ENTRY(csum_bad),
124 ENA_STAT_RX_ENTRY(page_alloc_fail),
125 ENA_STAT_RX_ENTRY(skb_alloc_fail),
126 ENA_STAT_RX_ENTRY(dma_mapping_err),
127 ENA_STAT_RX_ENTRY(bad_desc_num),
128 ENA_STAT_RX_ENTRY(bad_req_id),
129 ENA_STAT_RX_ENTRY(empty_rx_ring),
130 ENA_STAT_RX_ENTRY(csum_unchecked),
131 ENA_STAT_RX_ENTRY(xdp_aborted),
132 ENA_STAT_RX_ENTRY(xdp_drop),
133 ENA_STAT_RX_ENTRY(xdp_pass),
134 ENA_STAT_RX_ENTRY(xdp_tx),
135 ENA_STAT_RX_ENTRY(xdp_invalid),
136 ENA_STAT_RX_ENTRY(xdp_redirect),
137 };
138
139 static const struct ena_stats ena_stats_ena_com_strings[] = {
140 ENA_STAT_ENA_COM_ENTRY(aborted_cmd),
141 ENA_STAT_ENA_COM_ENTRY(submitted_cmd),
142 ENA_STAT_ENA_COM_ENTRY(completed_cmd),
143 ENA_STAT_ENA_COM_ENTRY(out_of_space),
144 ENA_STAT_ENA_COM_ENTRY(no_completion),
145 };
146
147 #define ENA_STATS_ARRAY_GLOBAL ARRAY_SIZE(ena_stats_global_strings)
148 #define ENA_STATS_ARRAY_TX ARRAY_SIZE(ena_stats_tx_strings)
149 #define ENA_STATS_ARRAY_RX ARRAY_SIZE(ena_stats_rx_strings)
150 #define ENA_STATS_ARRAY_ENA_COM ARRAY_SIZE(ena_stats_ena_com_strings)
151 #define ENA_STATS_ARRAY_ENI ARRAY_SIZE(ena_stats_eni_strings)
152 #define ENA_STATS_ARRAY_ENA_SRD ARRAY_SIZE(ena_srd_info_strings)
153 #define ENA_METRICS_ARRAY_ENI ARRAY_SIZE(ena_hw_stats_strings)
154
ena_safe_update_stat(u64 * src,u64 * dst,struct u64_stats_sync * syncp)155 static void ena_safe_update_stat(u64 *src, u64 *dst,
156 struct u64_stats_sync *syncp)
157 {
158 unsigned int start;
159
160 do {
161 start = u64_stats_fetch_begin(syncp);
162 *(dst) = *src;
163 } while (u64_stats_fetch_retry(syncp, start));
164 }
165
ena_metrics_stats(struct ena_adapter * adapter,u64 ** data)166 static void ena_metrics_stats(struct ena_adapter *adapter, u64 **data)
167 {
168 struct ena_com_dev *dev = adapter->ena_dev;
169 const struct ena_stats *ena_stats;
170 u64 *ptr;
171 int i;
172
173 if (ena_com_get_cap(dev, ENA_ADMIN_CUSTOMER_METRICS)) {
174 u32 supported_metrics_count;
175 int len;
176
177 supported_metrics_count = ena_com_get_customer_metric_count(dev);
178 len = supported_metrics_count * sizeof(u64);
179
180 /* Fill the data buffer, and advance its pointer */
181 ena_com_get_customer_metrics(dev, (char *)(*data), len);
182 (*data) += supported_metrics_count;
183
184 } else if (ena_com_get_cap(dev, ENA_ADMIN_ENI_STATS)) {
185 ena_com_get_eni_stats(dev, &adapter->eni_stats);
186 /* Updating regardless of rc - once we told ethtool how many stats we have
187 * it will print that much stats. We can't leave holes in the stats
188 */
189 for (i = 0; i < ENA_STATS_ARRAY_ENI; i++) {
190 ena_stats = &ena_stats_eni_strings[i];
191
192 ptr = (u64 *)&adapter->eni_stats +
193 ena_stats->stat_offset;
194
195 ena_safe_update_stat(ptr, (*data)++, &adapter->syncp);
196 }
197 }
198
199 if (ena_com_get_cap(dev, ENA_ADMIN_ENA_SRD_INFO)) {
200 ena_com_get_ena_srd_info(dev, &adapter->ena_srd_info);
201 /* Get ENA SRD mode */
202 ptr = (u64 *)&adapter->ena_srd_info;
203 ena_safe_update_stat(ptr, (*data)++, &adapter->syncp);
204 for (i = 1; i < ENA_STATS_ARRAY_ENA_SRD; i++) {
205 ena_stats = &ena_srd_info_strings[i];
206 /* Wrapped within an outer struct - need to accommodate an
207 * additional offset of the ENA SRD mode that was already processed
208 */
209 ptr = (u64 *)&adapter->ena_srd_info +
210 ena_stats->stat_offset + 1;
211
212 ena_safe_update_stat(ptr, (*data)++, &adapter->syncp);
213 }
214 }
215 }
216
ena_queue_stats(struct ena_adapter * adapter,u64 ** data)217 static void ena_queue_stats(struct ena_adapter *adapter, u64 **data)
218 {
219 const struct ena_stats *ena_stats;
220 struct ena_ring *ring;
221
222 u64 *ptr;
223 int i, j;
224
225 for (i = 0; i < adapter->num_io_queues + adapter->xdp_num_queues; i++) {
226 /* Tx stats */
227 ring = &adapter->tx_ring[i];
228
229 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
230 ena_stats = &ena_stats_tx_strings[j];
231
232 ptr = (u64 *)&ring->tx_stats + ena_stats->stat_offset;
233
234 ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
235 }
236 /* XDP TX queues don't have a RX queue counterpart */
237 if (!ENA_IS_XDP_INDEX(adapter, i)) {
238 /* Rx stats */
239 ring = &adapter->rx_ring[i];
240
241 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
242 ena_stats = &ena_stats_rx_strings[j];
243
244 ptr = (u64 *)&ring->rx_stats +
245 ena_stats->stat_offset;
246
247 ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
248 }
249 }
250 }
251 }
252
ena_dev_admin_queue_stats(struct ena_adapter * adapter,u64 ** data)253 static void ena_dev_admin_queue_stats(struct ena_adapter *adapter, u64 **data)
254 {
255 const struct ena_stats *ena_stats;
256 u64 *ptr;
257 int i;
258
259 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
260 ena_stats = &ena_stats_ena_com_strings[i];
261
262 ptr = (u64 *)&adapter->ena_dev->admin_queue.stats +
263 ena_stats->stat_offset;
264
265 *(*data)++ = *ptr;
266 }
267 }
268
ena_get_stats(struct ena_adapter * adapter,u64 * data,bool hw_stats_needed)269 static void ena_get_stats(struct ena_adapter *adapter,
270 u64 *data,
271 bool hw_stats_needed)
272 {
273 const struct ena_stats *ena_stats;
274 u64 *ptr;
275 int i;
276
277 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
278 ena_stats = &ena_stats_global_strings[i];
279
280 ptr = (u64 *)&adapter->dev_stats + ena_stats->stat_offset;
281
282 ena_safe_update_stat(ptr, data++, &adapter->syncp);
283 }
284
285 if (hw_stats_needed)
286 ena_metrics_stats(adapter, &data);
287
288 ena_queue_stats(adapter, &data);
289 ena_dev_admin_queue_stats(adapter, &data);
290 }
291
ena_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)292 static void ena_get_ethtool_stats(struct net_device *netdev,
293 struct ethtool_stats *stats,
294 u64 *data)
295 {
296 struct ena_adapter *adapter = netdev_priv(netdev);
297
298 ena_get_stats(adapter, data, true);
299 }
300
ena_get_sw_stats_count(struct ena_adapter * adapter)301 static int ena_get_sw_stats_count(struct ena_adapter *adapter)
302 {
303 return adapter->num_io_queues * (ENA_STATS_ARRAY_TX + ENA_STATS_ARRAY_RX)
304 + adapter->xdp_num_queues * ENA_STATS_ARRAY_TX
305 + ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENA_COM;
306 }
307
ena_get_hw_stats_count(struct ena_adapter * adapter)308 static int ena_get_hw_stats_count(struct ena_adapter *adapter)
309 {
310 struct ena_com_dev *dev = adapter->ena_dev;
311 int count;
312
313 count = ENA_STATS_ARRAY_ENA_SRD * ena_com_get_cap(dev, ENA_ADMIN_ENA_SRD_INFO);
314
315 if (ena_com_get_cap(dev, ENA_ADMIN_CUSTOMER_METRICS))
316 count += ena_com_get_customer_metric_count(dev);
317 else if (ena_com_get_cap(dev, ENA_ADMIN_ENI_STATS))
318 count += ENA_STATS_ARRAY_ENI;
319
320 return count;
321 }
322
ena_get_sset_count(struct net_device * netdev,int sset)323 int ena_get_sset_count(struct net_device *netdev, int sset)
324 {
325 struct ena_adapter *adapter = netdev_priv(netdev);
326
327 switch (sset) {
328 case ETH_SS_STATS:
329 return ena_get_sw_stats_count(adapter) +
330 ena_get_hw_stats_count(adapter);
331 }
332
333 return -EOPNOTSUPP;
334 }
335
ena_metrics_stats_strings(struct ena_adapter * adapter,u8 ** data)336 static void ena_metrics_stats_strings(struct ena_adapter *adapter, u8 **data)
337 {
338 struct ena_com_dev *dev = adapter->ena_dev;
339 const struct ena_hw_metrics *ena_metrics;
340 const struct ena_stats *ena_stats;
341 int i;
342
343 if (ena_com_get_cap(dev, ENA_ADMIN_CUSTOMER_METRICS)) {
344 for (i = 0; i < ENA_METRICS_ARRAY_ENI; i++) {
345 if (ena_com_get_customer_metric_support(dev, i)) {
346 ena_metrics = &ena_hw_stats_strings[i];
347 ethtool_puts(data, ena_metrics->name);
348 }
349 }
350 } else if (ena_com_get_cap(dev, ENA_ADMIN_ENI_STATS)) {
351 for (i = 0; i < ENA_STATS_ARRAY_ENI; i++) {
352 ena_stats = &ena_stats_eni_strings[i];
353 ethtool_puts(data, ena_stats->name);
354 }
355 }
356
357 if (ena_com_get_cap(dev, ENA_ADMIN_ENA_SRD_INFO)) {
358 for (i = 0; i < ENA_STATS_ARRAY_ENA_SRD; i++) {
359 ena_stats = &ena_srd_info_strings[i];
360 ethtool_puts(data, ena_stats->name);
361 }
362 }
363 }
364
ena_queue_strings(struct ena_adapter * adapter,u8 ** data)365 static void ena_queue_strings(struct ena_adapter *adapter, u8 **data)
366 {
367 const struct ena_stats *ena_stats;
368 bool is_xdp;
369 int i, j;
370
371 for (i = 0; i < adapter->num_io_queues + adapter->xdp_num_queues; i++) {
372 is_xdp = ENA_IS_XDP_INDEX(adapter, i);
373 /* Tx stats */
374 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
375 ena_stats = &ena_stats_tx_strings[j];
376
377 ethtool_sprintf(data,
378 "queue_%u_%s_%s", i,
379 is_xdp ? "xdp_tx" : "tx",
380 ena_stats->name);
381 }
382
383 /* In XDP there isn't an RX queue counterpart */
384 if (is_xdp)
385 continue;
386
387 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
388 ena_stats = &ena_stats_rx_strings[j];
389
390 ethtool_sprintf(data, "queue_%u_rx_%s", i, ena_stats->name);
391 }
392 }
393 }
394
ena_com_dev_strings(u8 ** data)395 static void ena_com_dev_strings(u8 **data)
396 {
397 const struct ena_stats *ena_stats;
398 int i;
399
400 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
401 ena_stats = &ena_stats_ena_com_strings[i];
402
403 ethtool_sprintf(data,
404 "ena_admin_q_%s", ena_stats->name);
405 }
406 }
407
ena_get_strings(struct ena_adapter * adapter,u8 * data,bool hw_stats_needed)408 static void ena_get_strings(struct ena_adapter *adapter,
409 u8 *data,
410 bool hw_stats_needed)
411 {
412 const struct ena_stats *ena_stats;
413 int i;
414
415 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
416 ena_stats = &ena_stats_global_strings[i];
417 ethtool_puts(&data, ena_stats->name);
418 }
419
420 if (hw_stats_needed)
421 ena_metrics_stats_strings(adapter, &data);
422
423 ena_queue_strings(adapter, &data);
424 ena_com_dev_strings(&data);
425 }
426
ena_get_ethtool_strings(struct net_device * netdev,u32 sset,u8 * data)427 static void ena_get_ethtool_strings(struct net_device *netdev,
428 u32 sset,
429 u8 *data)
430 {
431 struct ena_adapter *adapter = netdev_priv(netdev);
432
433 switch (sset) {
434 case ETH_SS_STATS:
435 ena_get_strings(adapter, data, true);
436 break;
437 }
438 }
439
ena_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * link_ksettings)440 static int ena_get_link_ksettings(struct net_device *netdev,
441 struct ethtool_link_ksettings *link_ksettings)
442 {
443 struct ena_adapter *adapter = netdev_priv(netdev);
444 struct ena_com_dev *ena_dev = adapter->ena_dev;
445 struct ena_admin_get_feature_link_desc *link;
446 struct ena_admin_get_feat_resp feat_resp;
447 int rc;
448
449 rc = ena_com_get_link_params(ena_dev, &feat_resp);
450 if (rc)
451 return rc;
452
453 link = &feat_resp.u.link;
454 link_ksettings->base.speed = link->speed;
455
456 if (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) {
457 ethtool_link_ksettings_add_link_mode(link_ksettings,
458 supported, Autoneg);
459 ethtool_link_ksettings_add_link_mode(link_ksettings,
460 supported, Autoneg);
461 }
462
463 link_ksettings->base.autoneg =
464 (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) ?
465 AUTONEG_ENABLE : AUTONEG_DISABLE;
466
467 link_ksettings->base.duplex = DUPLEX_FULL;
468
469 return 0;
470 }
471
ena_get_coalesce(struct net_device * net_dev,struct ethtool_coalesce * coalesce,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)472 static int ena_get_coalesce(struct net_device *net_dev,
473 struct ethtool_coalesce *coalesce,
474 struct kernel_ethtool_coalesce *kernel_coal,
475 struct netlink_ext_ack *extack)
476 {
477 struct ena_adapter *adapter = netdev_priv(net_dev);
478 struct ena_com_dev *ena_dev = adapter->ena_dev;
479
480 if (!ena_com_interrupt_moderation_supported(ena_dev))
481 return -EOPNOTSUPP;
482
483 coalesce->tx_coalesce_usecs =
484 ena_com_get_nonadaptive_moderation_interval_tx(ena_dev) *
485 ena_dev->intr_delay_resolution;
486
487 coalesce->rx_coalesce_usecs =
488 ena_com_get_nonadaptive_moderation_interval_rx(ena_dev)
489 * ena_dev->intr_delay_resolution;
490
491 coalesce->use_adaptive_rx_coalesce =
492 ena_com_get_adaptive_moderation_enabled(ena_dev);
493
494 return 0;
495 }
496
ena_update_tx_rings_nonadaptive_intr_moderation(struct ena_adapter * adapter)497 static void ena_update_tx_rings_nonadaptive_intr_moderation(struct ena_adapter *adapter)
498 {
499 unsigned int val;
500 int i;
501
502 val = ena_com_get_nonadaptive_moderation_interval_tx(adapter->ena_dev);
503
504 for (i = 0; i < adapter->num_io_queues; i++)
505 adapter->tx_ring[i].smoothed_interval = val;
506 }
507
ena_update_rx_rings_nonadaptive_intr_moderation(struct ena_adapter * adapter)508 static void ena_update_rx_rings_nonadaptive_intr_moderation(struct ena_adapter *adapter)
509 {
510 unsigned int val;
511 int i;
512
513 val = ena_com_get_nonadaptive_moderation_interval_rx(adapter->ena_dev);
514
515 for (i = 0; i < adapter->num_io_queues; i++)
516 adapter->rx_ring[i].smoothed_interval = val;
517 }
518
ena_set_coalesce(struct net_device * net_dev,struct ethtool_coalesce * coalesce,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)519 static int ena_set_coalesce(struct net_device *net_dev,
520 struct ethtool_coalesce *coalesce,
521 struct kernel_ethtool_coalesce *kernel_coal,
522 struct netlink_ext_ack *extack)
523 {
524 struct ena_adapter *adapter = netdev_priv(net_dev);
525 struct ena_com_dev *ena_dev = adapter->ena_dev;
526 int rc;
527
528 if (!ena_com_interrupt_moderation_supported(ena_dev))
529 return -EOPNOTSUPP;
530
531 rc = ena_com_update_nonadaptive_moderation_interval_tx(ena_dev,
532 coalesce->tx_coalesce_usecs);
533 if (rc)
534 return rc;
535
536 ena_update_tx_rings_nonadaptive_intr_moderation(adapter);
537
538 rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev,
539 coalesce->rx_coalesce_usecs);
540 if (rc)
541 return rc;
542
543 ena_update_rx_rings_nonadaptive_intr_moderation(adapter);
544
545 if (coalesce->use_adaptive_rx_coalesce &&
546 !ena_com_get_adaptive_moderation_enabled(ena_dev))
547 ena_com_enable_adaptive_moderation(ena_dev);
548
549 if (!coalesce->use_adaptive_rx_coalesce &&
550 ena_com_get_adaptive_moderation_enabled(ena_dev))
551 ena_com_disable_adaptive_moderation(ena_dev);
552
553 return 0;
554 }
555
ena_get_msglevel(struct net_device * netdev)556 static u32 ena_get_msglevel(struct net_device *netdev)
557 {
558 struct ena_adapter *adapter = netdev_priv(netdev);
559
560 return adapter->msg_enable;
561 }
562
ena_set_msglevel(struct net_device * netdev,u32 value)563 static void ena_set_msglevel(struct net_device *netdev, u32 value)
564 {
565 struct ena_adapter *adapter = netdev_priv(netdev);
566
567 adapter->msg_enable = value;
568 }
569
ena_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * info)570 static void ena_get_drvinfo(struct net_device *dev,
571 struct ethtool_drvinfo *info)
572 {
573 struct ena_adapter *adapter = netdev_priv(dev);
574 ssize_t ret = 0;
575
576 ret = strscpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
577 if (ret < 0)
578 netif_dbg(adapter, drv, dev,
579 "module name will be truncated, status = %zd\n", ret);
580
581 ret = strscpy(info->bus_info, pci_name(adapter->pdev),
582 sizeof(info->bus_info));
583 if (ret < 0)
584 netif_dbg(adapter, drv, dev,
585 "bus info will be truncated, status = %zd\n", ret);
586 }
587
ena_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)588 static void ena_get_ringparam(struct net_device *netdev,
589 struct ethtool_ringparam *ring,
590 struct kernel_ethtool_ringparam *kernel_ring,
591 struct netlink_ext_ack *extack)
592 {
593 struct ena_adapter *adapter = netdev_priv(netdev);
594
595 ring->tx_max_pending = adapter->max_tx_ring_size;
596 ring->rx_max_pending = adapter->max_rx_ring_size;
597 if (adapter->ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
598 bool large_llq_supported = adapter->large_llq_header_supported;
599
600 kernel_ring->tx_push = true;
601 kernel_ring->tx_push_buf_len = adapter->ena_dev->tx_max_header_size;
602 if (large_llq_supported)
603 kernel_ring->tx_push_buf_max_len = ENA_LLQ_LARGE_HEADER;
604 else
605 kernel_ring->tx_push_buf_max_len = ENA_LLQ_HEADER;
606 } else {
607 kernel_ring->tx_push = false;
608 kernel_ring->tx_push_buf_max_len = 0;
609 kernel_ring->tx_push_buf_len = 0;
610 }
611
612 ring->tx_pending = adapter->tx_ring[0].ring_size;
613 ring->rx_pending = adapter->rx_ring[0].ring_size;
614 }
615
ena_set_ringparam(struct net_device * netdev,struct ethtool_ringparam * ring,struct kernel_ethtool_ringparam * kernel_ring,struct netlink_ext_ack * extack)616 static int ena_set_ringparam(struct net_device *netdev,
617 struct ethtool_ringparam *ring,
618 struct kernel_ethtool_ringparam *kernel_ring,
619 struct netlink_ext_ack *extack)
620 {
621 struct ena_adapter *adapter = netdev_priv(netdev);
622 u32 new_tx_size, new_rx_size, new_tx_push_buf_len;
623 bool changed = false;
624
625 new_tx_size = ring->tx_pending < ENA_MIN_RING_SIZE ?
626 ENA_MIN_RING_SIZE : ring->tx_pending;
627 new_tx_size = rounddown_pow_of_two(new_tx_size);
628
629 new_rx_size = ring->rx_pending < ENA_MIN_RING_SIZE ?
630 ENA_MIN_RING_SIZE : ring->rx_pending;
631 new_rx_size = rounddown_pow_of_two(new_rx_size);
632
633 changed |= new_tx_size != adapter->requested_tx_ring_size ||
634 new_rx_size != adapter->requested_rx_ring_size;
635
636 /* This value is ignored if LLQ is not supported */
637 new_tx_push_buf_len = adapter->ena_dev->tx_max_header_size;
638
639 if ((adapter->ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) !=
640 kernel_ring->tx_push) {
641 NL_SET_ERR_MSG_MOD(extack, "Push mode state cannot be modified");
642 return -EINVAL;
643 }
644
645 /* Validate that the push buffer is supported on the underlying device */
646 if (kernel_ring->tx_push_buf_len) {
647 enum ena_admin_placement_policy_type placement;
648
649 new_tx_push_buf_len = kernel_ring->tx_push_buf_len;
650
651 placement = adapter->ena_dev->tx_mem_queue_type;
652 if (placement == ENA_ADMIN_PLACEMENT_POLICY_HOST)
653 return -EOPNOTSUPP;
654
655 if (new_tx_push_buf_len != ENA_LLQ_HEADER &&
656 new_tx_push_buf_len != ENA_LLQ_LARGE_HEADER) {
657 bool large_llq_sup = adapter->large_llq_header_supported;
658 char large_llq_size_str[40];
659
660 snprintf(large_llq_size_str, 40, ", %lu", ENA_LLQ_LARGE_HEADER);
661
662 NL_SET_ERR_MSG_FMT_MOD(extack,
663 "Supported tx push buff values: [%lu%s]",
664 ENA_LLQ_HEADER,
665 large_llq_sup ? large_llq_size_str : "");
666
667 return -EINVAL;
668 }
669
670 changed |= new_tx_push_buf_len != adapter->ena_dev->tx_max_header_size;
671 }
672
673 if (!changed)
674 return 0;
675
676 return ena_update_queue_params(adapter, new_tx_size, new_rx_size,
677 new_tx_push_buf_len);
678 }
679
ena_flow_hash_to_flow_type(u16 hash_fields)680 static u32 ena_flow_hash_to_flow_type(u16 hash_fields)
681 {
682 u32 data = 0;
683
684 if (hash_fields & ENA_ADMIN_RSS_L2_DA)
685 data |= RXH_L2DA;
686
687 if (hash_fields & ENA_ADMIN_RSS_L3_DA)
688 data |= RXH_IP_DST;
689
690 if (hash_fields & ENA_ADMIN_RSS_L3_SA)
691 data |= RXH_IP_SRC;
692
693 if (hash_fields & ENA_ADMIN_RSS_L4_DP)
694 data |= RXH_L4_B_2_3;
695
696 if (hash_fields & ENA_ADMIN_RSS_L4_SP)
697 data |= RXH_L4_B_0_1;
698
699 return data;
700 }
701
ena_flow_data_to_flow_hash(u32 hash_fields)702 static u16 ena_flow_data_to_flow_hash(u32 hash_fields)
703 {
704 u16 data = 0;
705
706 if (hash_fields & RXH_L2DA)
707 data |= ENA_ADMIN_RSS_L2_DA;
708
709 if (hash_fields & RXH_IP_DST)
710 data |= ENA_ADMIN_RSS_L3_DA;
711
712 if (hash_fields & RXH_IP_SRC)
713 data |= ENA_ADMIN_RSS_L3_SA;
714
715 if (hash_fields & RXH_L4_B_2_3)
716 data |= ENA_ADMIN_RSS_L4_DP;
717
718 if (hash_fields & RXH_L4_B_0_1)
719 data |= ENA_ADMIN_RSS_L4_SP;
720
721 return data;
722 }
723
ena_get_rss_hash(struct ena_com_dev * ena_dev,struct ethtool_rxnfc * cmd)724 static int ena_get_rss_hash(struct ena_com_dev *ena_dev,
725 struct ethtool_rxnfc *cmd)
726 {
727 enum ena_admin_flow_hash_proto proto;
728 u16 hash_fields;
729 int rc;
730
731 cmd->data = 0;
732
733 switch (cmd->flow_type) {
734 case TCP_V4_FLOW:
735 proto = ENA_ADMIN_RSS_TCP4;
736 break;
737 case UDP_V4_FLOW:
738 proto = ENA_ADMIN_RSS_UDP4;
739 break;
740 case TCP_V6_FLOW:
741 proto = ENA_ADMIN_RSS_TCP6;
742 break;
743 case UDP_V6_FLOW:
744 proto = ENA_ADMIN_RSS_UDP6;
745 break;
746 case IPV4_FLOW:
747 proto = ENA_ADMIN_RSS_IP4;
748 break;
749 case IPV6_FLOW:
750 proto = ENA_ADMIN_RSS_IP6;
751 break;
752 case ETHER_FLOW:
753 proto = ENA_ADMIN_RSS_NOT_IP;
754 break;
755 case AH_V4_FLOW:
756 case ESP_V4_FLOW:
757 case AH_V6_FLOW:
758 case ESP_V6_FLOW:
759 case SCTP_V4_FLOW:
760 case AH_ESP_V4_FLOW:
761 return -EOPNOTSUPP;
762 default:
763 return -EINVAL;
764 }
765
766 rc = ena_com_get_hash_ctrl(ena_dev, proto, &hash_fields);
767 if (rc)
768 return rc;
769
770 cmd->data = ena_flow_hash_to_flow_type(hash_fields);
771
772 return 0;
773 }
774
ena_set_rss_hash(struct ena_com_dev * ena_dev,struct ethtool_rxnfc * cmd)775 static int ena_set_rss_hash(struct ena_com_dev *ena_dev,
776 struct ethtool_rxnfc *cmd)
777 {
778 enum ena_admin_flow_hash_proto proto;
779 u16 hash_fields;
780
781 switch (cmd->flow_type) {
782 case TCP_V4_FLOW:
783 proto = ENA_ADMIN_RSS_TCP4;
784 break;
785 case UDP_V4_FLOW:
786 proto = ENA_ADMIN_RSS_UDP4;
787 break;
788 case TCP_V6_FLOW:
789 proto = ENA_ADMIN_RSS_TCP6;
790 break;
791 case UDP_V6_FLOW:
792 proto = ENA_ADMIN_RSS_UDP6;
793 break;
794 case IPV4_FLOW:
795 proto = ENA_ADMIN_RSS_IP4;
796 break;
797 case IPV6_FLOW:
798 proto = ENA_ADMIN_RSS_IP6;
799 break;
800 case ETHER_FLOW:
801 proto = ENA_ADMIN_RSS_NOT_IP;
802 break;
803 case AH_V4_FLOW:
804 case ESP_V4_FLOW:
805 case AH_V6_FLOW:
806 case ESP_V6_FLOW:
807 case SCTP_V4_FLOW:
808 case AH_ESP_V4_FLOW:
809 return -EOPNOTSUPP;
810 default:
811 return -EINVAL;
812 }
813
814 hash_fields = ena_flow_data_to_flow_hash(cmd->data);
815
816 return ena_com_fill_hash_ctrl(ena_dev, proto, hash_fields);
817 }
818
ena_set_rxnfc(struct net_device * netdev,struct ethtool_rxnfc * info)819 static int ena_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info)
820 {
821 struct ena_adapter *adapter = netdev_priv(netdev);
822 int rc = 0;
823
824 switch (info->cmd) {
825 case ETHTOOL_SRXFH:
826 rc = ena_set_rss_hash(adapter->ena_dev, info);
827 break;
828 case ETHTOOL_SRXCLSRLDEL:
829 case ETHTOOL_SRXCLSRLINS:
830 default:
831 netif_err(adapter, drv, netdev,
832 "Command parameter %d is not supported\n", info->cmd);
833 rc = -EOPNOTSUPP;
834 }
835
836 return rc;
837 }
838
ena_get_rxnfc(struct net_device * netdev,struct ethtool_rxnfc * info,u32 * rules)839 static int ena_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
840 u32 *rules)
841 {
842 struct ena_adapter *adapter = netdev_priv(netdev);
843 int rc = 0;
844
845 switch (info->cmd) {
846 case ETHTOOL_GRXRINGS:
847 info->data = adapter->num_io_queues;
848 rc = 0;
849 break;
850 case ETHTOOL_GRXFH:
851 rc = ena_get_rss_hash(adapter->ena_dev, info);
852 break;
853 case ETHTOOL_GRXCLSRLCNT:
854 case ETHTOOL_GRXCLSRULE:
855 case ETHTOOL_GRXCLSRLALL:
856 default:
857 netif_err(adapter, drv, netdev,
858 "Command parameter %d is not supported\n", info->cmd);
859 rc = -EOPNOTSUPP;
860 }
861
862 return rc;
863 }
864
ena_get_rxfh_indir_size(struct net_device * netdev)865 static u32 ena_get_rxfh_indir_size(struct net_device *netdev)
866 {
867 return ENA_RX_RSS_TABLE_SIZE;
868 }
869
ena_get_rxfh_key_size(struct net_device * netdev)870 static u32 ena_get_rxfh_key_size(struct net_device *netdev)
871 {
872 return ENA_HASH_KEY_SIZE;
873 }
874
ena_indirection_table_set(struct ena_adapter * adapter,const u32 * indir)875 static int ena_indirection_table_set(struct ena_adapter *adapter,
876 const u32 *indir)
877 {
878 struct ena_com_dev *ena_dev = adapter->ena_dev;
879 int i, rc;
880
881 for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) {
882 rc = ena_com_indirect_table_fill_entry(ena_dev,
883 i,
884 ENA_IO_RXQ_IDX(indir[i]));
885 if (unlikely(rc)) {
886 netif_err(adapter, drv, adapter->netdev,
887 "Cannot fill indirect table (index is too large)\n");
888 return rc;
889 }
890 }
891
892 rc = ena_com_indirect_table_set(ena_dev);
893 if (rc) {
894 netif_err(adapter, drv, adapter->netdev,
895 "Cannot set indirect table\n");
896 return rc == -EPERM ? -EOPNOTSUPP : rc;
897 }
898 return rc;
899 }
900
ena_indirection_table_get(struct ena_adapter * adapter,u32 * indir)901 static int ena_indirection_table_get(struct ena_adapter *adapter, u32 *indir)
902 {
903 struct ena_com_dev *ena_dev = adapter->ena_dev;
904 int i, rc;
905
906 if (!indir)
907 return 0;
908
909 rc = ena_com_indirect_table_get(ena_dev, indir);
910 if (rc)
911 return rc;
912
913 /* Our internal representation of the indices is: even indices
914 * for Tx and uneven indices for Rx. We need to convert the Rx
915 * indices to be consecutive
916 */
917 for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++)
918 indir[i] = ENA_IO_RXQ_IDX_TO_COMBINED_IDX(indir[i]);
919
920 return rc;
921 }
922
ena_get_rxfh(struct net_device * netdev,struct ethtool_rxfh_param * rxfh)923 static int ena_get_rxfh(struct net_device *netdev,
924 struct ethtool_rxfh_param *rxfh)
925 {
926 struct ena_adapter *adapter = netdev_priv(netdev);
927 enum ena_admin_hash_functions ena_func;
928 u8 func;
929 int rc;
930
931 rc = ena_indirection_table_get(adapter, rxfh->indir);
932 if (rc)
933 return rc;
934
935 /* We call this function in order to check if the device
936 * supports getting/setting the hash function.
937 */
938 rc = ena_com_get_hash_function(adapter->ena_dev, &ena_func);
939 if (rc) {
940 if (rc == -EOPNOTSUPP)
941 rc = 0;
942
943 return rc;
944 }
945
946 rc = ena_com_get_hash_key(adapter->ena_dev, rxfh->key);
947 if (rc)
948 return rc;
949
950 switch (ena_func) {
951 case ENA_ADMIN_TOEPLITZ:
952 func = ETH_RSS_HASH_TOP;
953 break;
954 case ENA_ADMIN_CRC32:
955 func = ETH_RSS_HASH_CRC32;
956 break;
957 default:
958 netif_err(adapter, drv, netdev,
959 "Command parameter is not supported\n");
960 return -EOPNOTSUPP;
961 }
962
963 rxfh->hfunc = func;
964
965 return 0;
966 }
967
ena_set_rxfh(struct net_device * netdev,struct ethtool_rxfh_param * rxfh,struct netlink_ext_ack * extack)968 static int ena_set_rxfh(struct net_device *netdev,
969 struct ethtool_rxfh_param *rxfh,
970 struct netlink_ext_ack *extack)
971 {
972 struct ena_adapter *adapter = netdev_priv(netdev);
973 struct ena_com_dev *ena_dev = adapter->ena_dev;
974 enum ena_admin_hash_functions func = 0;
975 int rc;
976
977 if (rxfh->indir) {
978 rc = ena_indirection_table_set(adapter, rxfh->indir);
979 if (rc)
980 return rc;
981 }
982
983 switch (rxfh->hfunc) {
984 case ETH_RSS_HASH_NO_CHANGE:
985 func = ena_com_get_current_hash_function(ena_dev);
986 break;
987 case ETH_RSS_HASH_TOP:
988 func = ENA_ADMIN_TOEPLITZ;
989 break;
990 case ETH_RSS_HASH_CRC32:
991 func = ENA_ADMIN_CRC32;
992 break;
993 default:
994 netif_err(adapter, drv, netdev, "Unsupported hfunc %d\n",
995 rxfh->hfunc);
996 return -EOPNOTSUPP;
997 }
998
999 if (rxfh->key || func) {
1000 rc = ena_com_fill_hash_function(ena_dev, func, rxfh->key,
1001 ENA_HASH_KEY_SIZE,
1002 0xFFFFFFFF);
1003 if (unlikely(rc)) {
1004 netif_err(adapter, drv, netdev, "Cannot fill key\n");
1005 return rc == -EPERM ? -EOPNOTSUPP : rc;
1006 }
1007 }
1008
1009 return 0;
1010 }
1011
ena_get_channels(struct net_device * netdev,struct ethtool_channels * channels)1012 static void ena_get_channels(struct net_device *netdev,
1013 struct ethtool_channels *channels)
1014 {
1015 struct ena_adapter *adapter = netdev_priv(netdev);
1016
1017 channels->max_combined = adapter->max_num_io_queues;
1018 channels->combined_count = adapter->num_io_queues;
1019 }
1020
ena_set_channels(struct net_device * netdev,struct ethtool_channels * channels)1021 static int ena_set_channels(struct net_device *netdev,
1022 struct ethtool_channels *channels)
1023 {
1024 struct ena_adapter *adapter = netdev_priv(netdev);
1025 u32 count = channels->combined_count;
1026 /* The check for max value is already done in ethtool */
1027 if (count < ENA_MIN_NUM_IO_QUEUES)
1028 return -EINVAL;
1029
1030 if (!ena_xdp_legal_queue_count(adapter, count)) {
1031 if (ena_xdp_present(adapter))
1032 return -EINVAL;
1033
1034 xdp_clear_features_flag(netdev);
1035 } else {
1036 xdp_set_features_flag(netdev,
1037 NETDEV_XDP_ACT_BASIC |
1038 NETDEV_XDP_ACT_REDIRECT);
1039 }
1040
1041 return ena_update_queue_count(adapter, count);
1042 }
1043
ena_get_tunable(struct net_device * netdev,const struct ethtool_tunable * tuna,void * data)1044 static int ena_get_tunable(struct net_device *netdev,
1045 const struct ethtool_tunable *tuna, void *data)
1046 {
1047 struct ena_adapter *adapter = netdev_priv(netdev);
1048 int ret = 0;
1049
1050 switch (tuna->id) {
1051 case ETHTOOL_RX_COPYBREAK:
1052 *(u32 *)data = adapter->rx_copybreak;
1053 break;
1054 default:
1055 ret = -EINVAL;
1056 break;
1057 }
1058
1059 return ret;
1060 }
1061
ena_set_tunable(struct net_device * netdev,const struct ethtool_tunable * tuna,const void * data)1062 static int ena_set_tunable(struct net_device *netdev,
1063 const struct ethtool_tunable *tuna,
1064 const void *data)
1065 {
1066 struct ena_adapter *adapter = netdev_priv(netdev);
1067 int ret = 0;
1068 u32 len;
1069
1070 switch (tuna->id) {
1071 case ETHTOOL_RX_COPYBREAK:
1072 len = *(u32 *)data;
1073 ret = ena_set_rx_copybreak(adapter, len);
1074 break;
1075 default:
1076 ret = -EINVAL;
1077 break;
1078 }
1079
1080 return ret;
1081 }
1082
1083 static const struct ethtool_ops ena_ethtool_ops = {
1084 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1085 ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
1086 .supported_ring_params = ETHTOOL_RING_USE_TX_PUSH_BUF_LEN |
1087 ETHTOOL_RING_USE_TX_PUSH,
1088 .get_link_ksettings = ena_get_link_ksettings,
1089 .get_drvinfo = ena_get_drvinfo,
1090 .get_msglevel = ena_get_msglevel,
1091 .set_msglevel = ena_set_msglevel,
1092 .get_link = ethtool_op_get_link,
1093 .get_coalesce = ena_get_coalesce,
1094 .set_coalesce = ena_set_coalesce,
1095 .get_ringparam = ena_get_ringparam,
1096 .set_ringparam = ena_set_ringparam,
1097 .get_sset_count = ena_get_sset_count,
1098 .get_strings = ena_get_ethtool_strings,
1099 .get_ethtool_stats = ena_get_ethtool_stats,
1100 .get_rxnfc = ena_get_rxnfc,
1101 .set_rxnfc = ena_set_rxnfc,
1102 .get_rxfh_indir_size = ena_get_rxfh_indir_size,
1103 .get_rxfh_key_size = ena_get_rxfh_key_size,
1104 .get_rxfh = ena_get_rxfh,
1105 .set_rxfh = ena_set_rxfh,
1106 .get_channels = ena_get_channels,
1107 .set_channels = ena_set_channels,
1108 .get_tunable = ena_get_tunable,
1109 .set_tunable = ena_set_tunable,
1110 .get_ts_info = ethtool_op_get_ts_info,
1111 };
1112
ena_set_ethtool_ops(struct net_device * netdev)1113 void ena_set_ethtool_ops(struct net_device *netdev)
1114 {
1115 netdev->ethtool_ops = &ena_ethtool_ops;
1116 }
1117
ena_dump_stats_ex(struct ena_adapter * adapter,u8 * buf)1118 static void ena_dump_stats_ex(struct ena_adapter *adapter, u8 *buf)
1119 {
1120 struct net_device *netdev = adapter->netdev;
1121 u8 *strings_buf;
1122 u64 *data_buf;
1123 int strings_num;
1124 int i, rc;
1125
1126 strings_num = ena_get_sw_stats_count(adapter);
1127 if (strings_num <= 0) {
1128 netif_err(adapter, drv, netdev, "Can't get stats num\n");
1129 return;
1130 }
1131
1132 strings_buf = devm_kcalloc(&adapter->pdev->dev,
1133 ETH_GSTRING_LEN, strings_num,
1134 GFP_ATOMIC);
1135 if (!strings_buf) {
1136 netif_err(adapter, drv, netdev,
1137 "Failed to allocate strings_buf\n");
1138 return;
1139 }
1140
1141 data_buf = devm_kcalloc(&adapter->pdev->dev,
1142 strings_num, sizeof(u64),
1143 GFP_ATOMIC);
1144 if (!data_buf) {
1145 netif_err(adapter, drv, netdev,
1146 "Failed to allocate data buf\n");
1147 devm_kfree(&adapter->pdev->dev, strings_buf);
1148 return;
1149 }
1150
1151 ena_get_strings(adapter, strings_buf, false);
1152 ena_get_stats(adapter, data_buf, false);
1153
1154 /* If there is a buffer, dump stats, otherwise print them to dmesg */
1155 if (buf)
1156 for (i = 0; i < strings_num; i++) {
1157 rc = snprintf(buf, ETH_GSTRING_LEN + sizeof(u64),
1158 "%s %llu\n",
1159 strings_buf + i * ETH_GSTRING_LEN,
1160 data_buf[i]);
1161 buf += rc;
1162 }
1163 else
1164 for (i = 0; i < strings_num; i++)
1165 netif_err(adapter, drv, netdev, "%s: %llu\n",
1166 strings_buf + i * ETH_GSTRING_LEN,
1167 data_buf[i]);
1168
1169 devm_kfree(&adapter->pdev->dev, strings_buf);
1170 devm_kfree(&adapter->pdev->dev, data_buf);
1171 }
1172
ena_dump_stats_to_buf(struct ena_adapter * adapter,u8 * buf)1173 void ena_dump_stats_to_buf(struct ena_adapter *adapter, u8 *buf)
1174 {
1175 if (!buf)
1176 return;
1177
1178 ena_dump_stats_ex(adapter, buf);
1179 }
1180
ena_dump_stats_to_dmesg(struct ena_adapter * adapter)1181 void ena_dump_stats_to_dmesg(struct ena_adapter *adapter)
1182 {
1183 ena_dump_stats_ex(adapter, NULL);
1184 }
1185