2 * Copyright 2015 Amazon.com, Inc. or its affiliates.
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
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
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21 * provided with the distribution.
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
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29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 #include <linux/pci.h>
35 #include "ena_netdev.h"
38 char name[ETH_GSTRING_LEN];
42 #define ENA_STAT_ENA_COM_ENTRY(stat) { \
44 .stat_offset = offsetof(struct ena_com_stats_admin, stat) \
47 #define ENA_STAT_ENTRY(stat, stat_type) { \
49 .stat_offset = offsetof(struct ena_stats_##stat_type, stat) \
52 #define ENA_STAT_RX_ENTRY(stat) \
53 ENA_STAT_ENTRY(stat, rx)
55 #define ENA_STAT_TX_ENTRY(stat) \
56 ENA_STAT_ENTRY(stat, tx)
58 #define ENA_STAT_GLOBAL_ENTRY(stat) \
59 ENA_STAT_ENTRY(stat, dev)
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),
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),
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),
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),
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)
114 static void ena_safe_update_stat(u64 *src, u64 *dst,
115 struct u64_stats_sync *syncp)
120 start = u64_stats_fetch_begin_irq(syncp);
122 } while (u64_stats_fetch_retry_irq(syncp, start));
125 static void ena_queue_stats(struct ena_adapter *adapter, u64 **data)
127 const struct ena_stats *ena_stats;
128 struct ena_ring *ring;
133 for (i = 0; i < adapter->num_queues; i++) {
135 ring = &adapter->tx_ring[i];
137 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
138 ena_stats = &ena_stats_tx_strings[j];
140 ptr = (u64 *)((uintptr_t)&ring->tx_stats +
141 (uintptr_t)ena_stats->stat_offset);
143 ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
147 ring = &adapter->rx_ring[i];
149 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
150 ena_stats = &ena_stats_rx_strings[j];
152 ptr = (u64 *)((uintptr_t)&ring->rx_stats +
153 (uintptr_t)ena_stats->stat_offset);
155 ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
160 static void ena_dev_admin_queue_stats(struct ena_adapter *adapter, u64 **data)
162 const struct ena_stats *ena_stats;
166 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
167 ena_stats = &ena_stats_ena_com_strings[i];
169 ptr = (u32 *)((uintptr_t)&adapter->ena_dev->admin_queue.stats +
170 (uintptr_t)ena_stats->stat_offset);
176 static void ena_get_ethtool_stats(struct net_device *netdev,
177 struct ethtool_stats *stats,
180 struct ena_adapter *adapter = netdev_priv(netdev);
181 const struct ena_stats *ena_stats;
185 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
186 ena_stats = &ena_stats_global_strings[i];
188 ptr = (u64 *)((uintptr_t)&adapter->dev_stats +
189 (uintptr_t)ena_stats->stat_offset);
191 ena_safe_update_stat(ptr, data++, &adapter->syncp);
194 ena_queue_stats(adapter, &data);
195 ena_dev_admin_queue_stats(adapter, &data);
198 int ena_get_sset_count(struct net_device *netdev, int sset)
200 struct ena_adapter *adapter = netdev_priv(netdev);
202 if (sset != ETH_SS_STATS)
205 return adapter->num_queues * (ENA_STATS_ARRAY_TX + ENA_STATS_ARRAY_RX)
206 + ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENA_COM;
209 static void ena_queue_strings(struct ena_adapter *adapter, u8 **data)
211 const struct ena_stats *ena_stats;
214 for (i = 0; i < adapter->num_queues; i++) {
216 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
217 ena_stats = &ena_stats_tx_strings[j];
219 snprintf(*data, ETH_GSTRING_LEN,
220 "queue_%u_tx_%s", i, ena_stats->name);
221 (*data) += ETH_GSTRING_LEN;
224 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
225 ena_stats = &ena_stats_rx_strings[j];
227 snprintf(*data, ETH_GSTRING_LEN,
228 "queue_%u_rx_%s", i, ena_stats->name);
229 (*data) += ETH_GSTRING_LEN;
234 static void ena_com_dev_strings(u8 **data)
236 const struct ena_stats *ena_stats;
239 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
240 ena_stats = &ena_stats_ena_com_strings[i];
242 snprintf(*data, ETH_GSTRING_LEN,
243 "ena_admin_q_%s", ena_stats->name);
244 (*data) += ETH_GSTRING_LEN;
248 static void ena_get_strings(struct net_device *netdev, u32 sset, u8 *data)
250 struct ena_adapter *adapter = netdev_priv(netdev);
251 const struct ena_stats *ena_stats;
254 if (sset != ETH_SS_STATS)
257 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
258 ena_stats = &ena_stats_global_strings[i];
260 memcpy(data, ena_stats->name, ETH_GSTRING_LEN);
261 data += ETH_GSTRING_LEN;
264 ena_queue_strings(adapter, &data);
265 ena_com_dev_strings(&data);
268 static int ena_get_link_ksettings(struct net_device *netdev,
269 struct ethtool_link_ksettings *link_ksettings)
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;
277 rc = ena_com_get_link_params(ena_dev, &feat_resp);
281 link = &feat_resp.u.link;
282 link_ksettings->base.speed = link->speed;
284 if (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) {
285 ethtool_link_ksettings_add_link_mode(link_ksettings,
287 ethtool_link_ksettings_add_link_mode(link_ksettings,
291 link_ksettings->base.autoneg =
292 (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) ?
293 AUTONEG_ENABLE : AUTONEG_DISABLE;
295 link_ksettings->base.duplex = DUPLEX_FULL;
300 static int ena_get_coalesce(struct net_device *net_dev,
301 struct ethtool_coalesce *coalesce)
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;
307 if (!ena_com_interrupt_moderation_supported(ena_dev)) {
308 /* the devie doesn't support interrupt moderation */
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;
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;
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;
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;
331 coalesce->use_adaptive_rx_coalesce =
332 ena_com_get_adaptive_moderation_enabled(ena_dev);
337 static void ena_update_tx_rings_intr_moderation(struct ena_adapter *adapter)
342 val = ena_com_get_nonadaptive_moderation_interval_tx(adapter->ena_dev);
344 for (i = 0; i < adapter->num_queues; i++)
345 adapter->tx_ring[i].smoothed_interval = val;
348 static int ena_set_coalesce(struct net_device *net_dev,
349 struct ethtool_coalesce *coalesce)
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;
356 if (!ena_com_interrupt_moderation_supported(ena_dev)) {
357 /* the devie doesn't support interrupt moderation */
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)
377 rc = ena_com_update_nonadaptive_moderation_interval_tx(ena_dev,
378 coalesce->tx_coalesce_usecs);
382 ena_update_tx_rings_intr_moderation(adapter);
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);
391 } else { /* was in non-adaptive mode */
392 if (coalesce->use_adaptive_rx_coalesce) {
393 ena_com_enable_adaptive_moderation(ena_dev);
395 rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev,
396 coalesce->rx_coalesce_usecs);
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);
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);
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);
419 static u32 ena_get_msglevel(struct net_device *netdev)
421 struct ena_adapter *adapter = netdev_priv(netdev);
423 return adapter->msg_enable;
426 static void ena_set_msglevel(struct net_device *netdev, u32 value)
428 struct ena_adapter *adapter = netdev_priv(netdev);
430 adapter->msg_enable = value;
433 static void ena_get_drvinfo(struct net_device *dev,
434 struct ethtool_drvinfo *info)
436 struct ena_adapter *adapter = netdev_priv(dev);
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));
444 static void ena_get_ringparam(struct net_device *netdev,
445 struct ethtool_ringparam *ring)
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];
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;
457 static u32 ena_flow_hash_to_flow_type(u16 hash_fields)
461 if (hash_fields & ENA_ADMIN_RSS_L2_DA)
464 if (hash_fields & ENA_ADMIN_RSS_L3_DA)
467 if (hash_fields & ENA_ADMIN_RSS_L3_SA)
470 if (hash_fields & ENA_ADMIN_RSS_L4_DP)
471 data |= RXH_L4_B_2_3;
473 if (hash_fields & ENA_ADMIN_RSS_L4_SP)
474 data |= RXH_L4_B_0_1;
479 static u16 ena_flow_data_to_flow_hash(u32 hash_fields)
483 if (hash_fields & RXH_L2DA)
484 data |= ENA_ADMIN_RSS_L2_DA;
486 if (hash_fields & RXH_IP_DST)
487 data |= ENA_ADMIN_RSS_L3_DA;
489 if (hash_fields & RXH_IP_SRC)
490 data |= ENA_ADMIN_RSS_L3_SA;
492 if (hash_fields & RXH_L4_B_2_3)
493 data |= ENA_ADMIN_RSS_L4_DP;
495 if (hash_fields & RXH_L4_B_0_1)
496 data |= ENA_ADMIN_RSS_L4_SP;
501 static int ena_get_rss_hash(struct ena_com_dev *ena_dev,
502 struct ethtool_rxnfc *cmd)
504 enum ena_admin_flow_hash_proto proto;
510 switch (cmd->flow_type) {
512 proto = ENA_ADMIN_RSS_TCP4;
515 proto = ENA_ADMIN_RSS_UDP4;
518 proto = ENA_ADMIN_RSS_TCP6;
521 proto = ENA_ADMIN_RSS_UDP6;
524 proto = ENA_ADMIN_RSS_IP4;
527 proto = ENA_ADMIN_RSS_IP6;
530 proto = ENA_ADMIN_RSS_NOT_IP;
543 rc = ena_com_get_hash_ctrl(ena_dev, proto, &hash_fields);
547 cmd->data = ena_flow_hash_to_flow_type(hash_fields);
552 static int ena_set_rss_hash(struct ena_com_dev *ena_dev,
553 struct ethtool_rxnfc *cmd)
555 enum ena_admin_flow_hash_proto proto;
558 switch (cmd->flow_type) {
560 proto = ENA_ADMIN_RSS_TCP4;
563 proto = ENA_ADMIN_RSS_UDP4;
566 proto = ENA_ADMIN_RSS_TCP6;
569 proto = ENA_ADMIN_RSS_UDP6;
572 proto = ENA_ADMIN_RSS_IP4;
575 proto = ENA_ADMIN_RSS_IP6;
578 proto = ENA_ADMIN_RSS_NOT_IP;
591 hash_fields = ena_flow_data_to_flow_hash(cmd->data);
593 return ena_com_fill_hash_ctrl(ena_dev, proto, hash_fields);
596 static int ena_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info)
598 struct ena_adapter *adapter = netdev_priv(netdev);
603 rc = ena_set_rss_hash(adapter->ena_dev, info);
605 case ETHTOOL_SRXCLSRLDEL:
606 case ETHTOOL_SRXCLSRLINS:
608 netif_err(adapter, drv, netdev,
609 "Command parameter %d is not supported\n", info->cmd);
616 static int ena_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
619 struct ena_adapter *adapter = netdev_priv(netdev);
623 case ETHTOOL_GRXRINGS:
624 info->data = adapter->num_queues;
628 rc = ena_get_rss_hash(adapter->ena_dev, info);
630 case ETHTOOL_GRXCLSRLCNT:
631 case ETHTOOL_GRXCLSRULE:
632 case ETHTOOL_GRXCLSRLALL:
634 netif_err(adapter, drv, netdev,
635 "Command parameter %d is not supported\n", info->cmd);
642 static u32 ena_get_rxfh_indir_size(struct net_device *netdev)
644 return ENA_RX_RSS_TABLE_SIZE;
647 static u32 ena_get_rxfh_key_size(struct net_device *netdev)
649 return ENA_HASH_KEY_SIZE;
652 static int ena_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
655 struct ena_adapter *adapter = netdev_priv(netdev);
656 enum ena_admin_hash_functions ena_func;
660 rc = ena_com_indirect_table_get(adapter->ena_dev, indir);
664 rc = ena_com_get_hash_function(adapter->ena_dev, &ena_func, key);
669 case ENA_ADMIN_TOEPLITZ:
670 func = ETH_RSS_HASH_TOP;
672 case ENA_ADMIN_CRC32:
673 func = ETH_RSS_HASH_XOR;
676 netif_err(adapter, drv, netdev,
677 "Command parameter is not supported\n");
687 static int ena_set_rxfh(struct net_device *netdev, const u32 *indir,
688 const u8 *key, const u8 hfunc)
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;
696 for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) {
697 rc = ena_com_indirect_table_fill_entry(ena_dev,
699 ENA_IO_RXQ_IDX(indir[i]));
701 netif_err(adapter, drv, netdev,
702 "Cannot fill indirect table (index is too large)\n");
707 rc = ena_com_indirect_table_set(ena_dev);
709 netif_err(adapter, drv, netdev,
710 "Cannot set indirect table\n");
711 return rc == -EPERM ? -EOPNOTSUPP : rc;
716 case ETH_RSS_HASH_TOP:
717 func = ENA_ADMIN_TOEPLITZ;
719 case ETH_RSS_HASH_XOR:
720 func = ENA_ADMIN_CRC32;
723 netif_err(adapter, drv, netdev, "Unsupported hfunc %d\n",
729 rc = ena_com_fill_hash_function(ena_dev, func, key,
733 netif_err(adapter, drv, netdev, "Cannot fill key\n");
734 return rc == -EPERM ? -EOPNOTSUPP : rc;
741 static void ena_get_channels(struct net_device *netdev,
742 struct ethtool_channels *channels)
744 struct ena_adapter *adapter = netdev_priv(netdev);
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;
756 static int ena_get_tunable(struct net_device *netdev,
757 const struct ethtool_tunable *tuna, void *data)
759 struct ena_adapter *adapter = netdev_priv(netdev);
763 case ETHTOOL_RX_COPYBREAK:
764 *(u32 *)data = adapter->rx_copybreak;
774 static int ena_set_tunable(struct net_device *netdev,
775 const struct ethtool_tunable *tuna,
778 struct ena_adapter *adapter = netdev_priv(netdev);
783 case ETHTOOL_RX_COPYBREAK:
785 if (len > adapter->netdev->mtu) {
789 adapter->rx_copybreak = len;
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,
822 void ena_set_ethtool_ops(struct net_device *netdev)
824 netdev->ethtool_ops = &ena_ethtool_ops;
827 static void ena_dump_stats_ex(struct ena_adapter *adapter, u8 *buf)
829 struct net_device *netdev = adapter->netdev;
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");
841 strings_buf = devm_kcalloc(&adapter->pdev->dev,
842 ETH_GSTRING_LEN, strings_num,
845 netif_err(adapter, drv, netdev,
846 "failed to alloc strings_buf\n");
850 data_buf = devm_kcalloc(&adapter->pdev->dev,
851 strings_num, sizeof(u64),
854 netif_err(adapter, drv, netdev,
855 "failed to allocate data buf\n");
856 devm_kfree(&adapter->pdev->dev, strings_buf);
860 ena_get_strings(netdev, ETH_SS_STATS, strings_buf);
861 ena_get_ethtool_stats(netdev, NULL, data_buf);
863 /* If there is a buffer, dump stats, otherwise print them to dmesg */
865 for (i = 0; i < strings_num; i++) {
866 rc = snprintf(buf, ETH_GSTRING_LEN + sizeof(u64),
868 strings_buf + i * ETH_GSTRING_LEN,
873 for (i = 0; i < strings_num; i++)
874 netif_err(adapter, drv, netdev, "%s: %llu\n",
875 strings_buf + i * ETH_GSTRING_LEN,
878 devm_kfree(&adapter->pdev->dev, strings_buf);
879 devm_kfree(&adapter->pdev->dev, data_buf);
882 void ena_dump_stats_to_buf(struct ena_adapter *adapter, u8 *buf)
887 ena_dump_stats_ex(adapter, buf);
890 void ena_dump_stats_to_dmesg(struct ena_adapter *adapter)
892 ena_dump_stats_ex(adapter, NULL);