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(io_suspend),
64 ENA_STAT_GLOBAL_ENTRY(io_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),
86 static const struct ena_stats ena_stats_rx_strings[] = {
87 ENA_STAT_RX_ENTRY(cnt),
88 ENA_STAT_RX_ENTRY(bytes),
89 ENA_STAT_RX_ENTRY(refil_partial),
90 ENA_STAT_RX_ENTRY(bad_csum),
91 ENA_STAT_RX_ENTRY(page_alloc_fail),
92 ENA_STAT_RX_ENTRY(skb_alloc_fail),
93 ENA_STAT_RX_ENTRY(dma_mapping_err),
94 ENA_STAT_RX_ENTRY(bad_desc_num),
95 ENA_STAT_RX_ENTRY(rx_copybreak_pkt),
96 ENA_STAT_RX_ENTRY(empty_rx_ring),
99 static const struct ena_stats ena_stats_ena_com_strings[] = {
100 ENA_STAT_ENA_COM_ENTRY(aborted_cmd),
101 ENA_STAT_ENA_COM_ENTRY(submitted_cmd),
102 ENA_STAT_ENA_COM_ENTRY(completed_cmd),
103 ENA_STAT_ENA_COM_ENTRY(out_of_space),
104 ENA_STAT_ENA_COM_ENTRY(no_completion),
107 #define ENA_STATS_ARRAY_GLOBAL ARRAY_SIZE(ena_stats_global_strings)
108 #define ENA_STATS_ARRAY_TX ARRAY_SIZE(ena_stats_tx_strings)
109 #define ENA_STATS_ARRAY_RX ARRAY_SIZE(ena_stats_rx_strings)
110 #define ENA_STATS_ARRAY_ENA_COM ARRAY_SIZE(ena_stats_ena_com_strings)
112 static void ena_safe_update_stat(u64 *src, u64 *dst,
113 struct u64_stats_sync *syncp)
118 start = u64_stats_fetch_begin_irq(syncp);
120 } while (u64_stats_fetch_retry_irq(syncp, start));
123 static void ena_queue_stats(struct ena_adapter *adapter, u64 **data)
125 const struct ena_stats *ena_stats;
126 struct ena_ring *ring;
131 for (i = 0; i < adapter->num_queues; i++) {
133 ring = &adapter->tx_ring[i];
135 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
136 ena_stats = &ena_stats_tx_strings[j];
138 ptr = (u64 *)((uintptr_t)&ring->tx_stats +
139 (uintptr_t)ena_stats->stat_offset);
141 ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
145 ring = &adapter->rx_ring[i];
147 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
148 ena_stats = &ena_stats_rx_strings[j];
150 ptr = (u64 *)((uintptr_t)&ring->rx_stats +
151 (uintptr_t)ena_stats->stat_offset);
153 ena_safe_update_stat(ptr, (*data)++, &ring->syncp);
158 static void ena_dev_admin_queue_stats(struct ena_adapter *adapter, u64 **data)
160 const struct ena_stats *ena_stats;
164 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
165 ena_stats = &ena_stats_ena_com_strings[i];
167 ptr = (u32 *)((uintptr_t)&adapter->ena_dev->admin_queue.stats +
168 (uintptr_t)ena_stats->stat_offset);
174 static void ena_get_ethtool_stats(struct net_device *netdev,
175 struct ethtool_stats *stats,
178 struct ena_adapter *adapter = netdev_priv(netdev);
179 const struct ena_stats *ena_stats;
183 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
184 ena_stats = &ena_stats_global_strings[i];
186 ptr = (u64 *)((uintptr_t)&adapter->dev_stats +
187 (uintptr_t)ena_stats->stat_offset);
189 ena_safe_update_stat(ptr, data++, &adapter->syncp);
192 ena_queue_stats(adapter, &data);
193 ena_dev_admin_queue_stats(adapter, &data);
196 int ena_get_sset_count(struct net_device *netdev, int sset)
198 struct ena_adapter *adapter = netdev_priv(netdev);
200 if (sset != ETH_SS_STATS)
203 return adapter->num_queues * (ENA_STATS_ARRAY_TX + ENA_STATS_ARRAY_RX)
204 + ENA_STATS_ARRAY_GLOBAL + ENA_STATS_ARRAY_ENA_COM;
207 static void ena_queue_strings(struct ena_adapter *adapter, u8 **data)
209 const struct ena_stats *ena_stats;
212 for (i = 0; i < adapter->num_queues; i++) {
214 for (j = 0; j < ENA_STATS_ARRAY_TX; j++) {
215 ena_stats = &ena_stats_tx_strings[j];
217 snprintf(*data, ETH_GSTRING_LEN,
218 "queue_%u_tx_%s", i, ena_stats->name);
219 (*data) += ETH_GSTRING_LEN;
222 for (j = 0; j < ENA_STATS_ARRAY_RX; j++) {
223 ena_stats = &ena_stats_rx_strings[j];
225 snprintf(*data, ETH_GSTRING_LEN,
226 "queue_%u_rx_%s", i, ena_stats->name);
227 (*data) += ETH_GSTRING_LEN;
232 static void ena_com_dev_strings(u8 **data)
234 const struct ena_stats *ena_stats;
237 for (i = 0; i < ENA_STATS_ARRAY_ENA_COM; i++) {
238 ena_stats = &ena_stats_ena_com_strings[i];
240 snprintf(*data, ETH_GSTRING_LEN,
241 "ena_admin_q_%s", ena_stats->name);
242 (*data) += ETH_GSTRING_LEN;
246 static void ena_get_strings(struct net_device *netdev, u32 sset, u8 *data)
248 struct ena_adapter *adapter = netdev_priv(netdev);
249 const struct ena_stats *ena_stats;
252 if (sset != ETH_SS_STATS)
255 for (i = 0; i < ENA_STATS_ARRAY_GLOBAL; i++) {
256 ena_stats = &ena_stats_global_strings[i];
258 memcpy(data, ena_stats->name, ETH_GSTRING_LEN);
259 data += ETH_GSTRING_LEN;
262 ena_queue_strings(adapter, &data);
263 ena_com_dev_strings(&data);
266 static int ena_get_link_ksettings(struct net_device *netdev,
267 struct ethtool_link_ksettings *link_ksettings)
269 struct ena_adapter *adapter = netdev_priv(netdev);
270 struct ena_com_dev *ena_dev = adapter->ena_dev;
271 struct ena_admin_get_feature_link_desc *link;
272 struct ena_admin_get_feat_resp feat_resp;
275 rc = ena_com_get_link_params(ena_dev, &feat_resp);
279 link = &feat_resp.u.link;
280 link_ksettings->base.speed = link->speed;
282 if (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) {
283 ethtool_link_ksettings_add_link_mode(link_ksettings,
285 ethtool_link_ksettings_add_link_mode(link_ksettings,
289 link_ksettings->base.autoneg =
290 (link->flags & ENA_ADMIN_GET_FEATURE_LINK_DESC_AUTONEG_MASK) ?
291 AUTONEG_ENABLE : AUTONEG_DISABLE;
293 link_ksettings->base.duplex = DUPLEX_FULL;
298 static int ena_get_coalesce(struct net_device *net_dev,
299 struct ethtool_coalesce *coalesce)
301 struct ena_adapter *adapter = netdev_priv(net_dev);
302 struct ena_com_dev *ena_dev = adapter->ena_dev;
303 struct ena_intr_moder_entry intr_moder_entry;
305 if (!ena_com_interrupt_moderation_supported(ena_dev)) {
306 /* the devie doesn't support interrupt moderation */
309 coalesce->tx_coalesce_usecs =
310 ena_com_get_nonadaptive_moderation_interval_tx(ena_dev) /
311 ena_dev->intr_delay_resolution;
312 if (!ena_com_get_adaptive_moderation_enabled(ena_dev)) {
313 coalesce->rx_coalesce_usecs =
314 ena_com_get_nonadaptive_moderation_interval_rx(ena_dev)
315 / ena_dev->intr_delay_resolution;
317 ena_com_get_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_LOWEST, &intr_moder_entry);
318 coalesce->rx_coalesce_usecs_low = intr_moder_entry.intr_moder_interval;
319 coalesce->rx_max_coalesced_frames_low = intr_moder_entry.pkts_per_interval;
321 ena_com_get_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_MID, &intr_moder_entry);
322 coalesce->rx_coalesce_usecs = intr_moder_entry.intr_moder_interval;
323 coalesce->rx_max_coalesced_frames = intr_moder_entry.pkts_per_interval;
325 ena_com_get_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_HIGHEST, &intr_moder_entry);
326 coalesce->rx_coalesce_usecs_high = intr_moder_entry.intr_moder_interval;
327 coalesce->rx_max_coalesced_frames_high = intr_moder_entry.pkts_per_interval;
329 coalesce->use_adaptive_rx_coalesce =
330 ena_com_get_adaptive_moderation_enabled(ena_dev);
335 static void ena_update_tx_rings_intr_moderation(struct ena_adapter *adapter)
340 val = ena_com_get_nonadaptive_moderation_interval_tx(adapter->ena_dev);
342 for (i = 0; i < adapter->num_queues; i++)
343 adapter->tx_ring[i].smoothed_interval = val;
346 static int ena_set_coalesce(struct net_device *net_dev,
347 struct ethtool_coalesce *coalesce)
349 struct ena_adapter *adapter = netdev_priv(net_dev);
350 struct ena_com_dev *ena_dev = adapter->ena_dev;
351 struct ena_intr_moder_entry intr_moder_entry;
354 if (!ena_com_interrupt_moderation_supported(ena_dev)) {
355 /* the devie doesn't support interrupt moderation */
359 if (coalesce->rx_coalesce_usecs_irq ||
360 coalesce->rx_max_coalesced_frames_irq ||
361 coalesce->tx_coalesce_usecs_irq ||
362 coalesce->tx_max_coalesced_frames ||
363 coalesce->tx_max_coalesced_frames_irq ||
364 coalesce->stats_block_coalesce_usecs ||
365 coalesce->use_adaptive_tx_coalesce ||
366 coalesce->pkt_rate_low ||
367 coalesce->tx_coalesce_usecs_low ||
368 coalesce->tx_max_coalesced_frames_low ||
369 coalesce->pkt_rate_high ||
370 coalesce->tx_coalesce_usecs_high ||
371 coalesce->tx_max_coalesced_frames_high ||
372 coalesce->rate_sample_interval)
375 rc = ena_com_update_nonadaptive_moderation_interval_tx(ena_dev,
376 coalesce->tx_coalesce_usecs);
380 ena_update_tx_rings_intr_moderation(adapter);
382 if (ena_com_get_adaptive_moderation_enabled(ena_dev)) {
383 if (!coalesce->use_adaptive_rx_coalesce) {
384 ena_com_disable_adaptive_moderation(ena_dev);
385 rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev,
386 coalesce->rx_coalesce_usecs);
389 } else { /* was in non-adaptive mode */
390 if (coalesce->use_adaptive_rx_coalesce) {
391 ena_com_enable_adaptive_moderation(ena_dev);
393 rc = ena_com_update_nonadaptive_moderation_interval_rx(ena_dev,
394 coalesce->rx_coalesce_usecs);
399 intr_moder_entry.intr_moder_interval = coalesce->rx_coalesce_usecs_low;
400 intr_moder_entry.pkts_per_interval = coalesce->rx_max_coalesced_frames_low;
401 intr_moder_entry.bytes_per_interval = ENA_INTR_BYTE_COUNT_NOT_SUPPORTED;
402 ena_com_init_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_LOWEST, &intr_moder_entry);
404 intr_moder_entry.intr_moder_interval = coalesce->rx_coalesce_usecs;
405 intr_moder_entry.pkts_per_interval = coalesce->rx_max_coalesced_frames;
406 intr_moder_entry.bytes_per_interval = ENA_INTR_BYTE_COUNT_NOT_SUPPORTED;
407 ena_com_init_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_MID, &intr_moder_entry);
409 intr_moder_entry.intr_moder_interval = coalesce->rx_coalesce_usecs_high;
410 intr_moder_entry.pkts_per_interval = coalesce->rx_max_coalesced_frames_high;
411 intr_moder_entry.bytes_per_interval = ENA_INTR_BYTE_COUNT_NOT_SUPPORTED;
412 ena_com_init_intr_moderation_entry(adapter->ena_dev, ENA_INTR_MODER_HIGHEST, &intr_moder_entry);
417 static u32 ena_get_msglevel(struct net_device *netdev)
419 struct ena_adapter *adapter = netdev_priv(netdev);
421 return adapter->msg_enable;
424 static void ena_set_msglevel(struct net_device *netdev, u32 value)
426 struct ena_adapter *adapter = netdev_priv(netdev);
428 adapter->msg_enable = value;
431 static void ena_get_drvinfo(struct net_device *dev,
432 struct ethtool_drvinfo *info)
434 struct ena_adapter *adapter = netdev_priv(dev);
436 strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
437 strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
438 strlcpy(info->bus_info, pci_name(adapter->pdev),
439 sizeof(info->bus_info));
442 static void ena_get_ringparam(struct net_device *netdev,
443 struct ethtool_ringparam *ring)
445 struct ena_adapter *adapter = netdev_priv(netdev);
446 struct ena_ring *tx_ring = &adapter->tx_ring[0];
447 struct ena_ring *rx_ring = &adapter->rx_ring[0];
449 ring->rx_max_pending = rx_ring->ring_size;
450 ring->tx_max_pending = tx_ring->ring_size;
451 ring->rx_pending = rx_ring->ring_size;
452 ring->tx_pending = tx_ring->ring_size;
455 static u32 ena_flow_hash_to_flow_type(u16 hash_fields)
459 if (hash_fields & ENA_ADMIN_RSS_L2_DA)
462 if (hash_fields & ENA_ADMIN_RSS_L3_DA)
465 if (hash_fields & ENA_ADMIN_RSS_L3_SA)
468 if (hash_fields & ENA_ADMIN_RSS_L4_DP)
469 data |= RXH_L4_B_2_3;
471 if (hash_fields & ENA_ADMIN_RSS_L4_SP)
472 data |= RXH_L4_B_0_1;
477 static u16 ena_flow_data_to_flow_hash(u32 hash_fields)
481 if (hash_fields & RXH_L2DA)
482 data |= ENA_ADMIN_RSS_L2_DA;
484 if (hash_fields & RXH_IP_DST)
485 data |= ENA_ADMIN_RSS_L3_DA;
487 if (hash_fields & RXH_IP_SRC)
488 data |= ENA_ADMIN_RSS_L3_SA;
490 if (hash_fields & RXH_L4_B_2_3)
491 data |= ENA_ADMIN_RSS_L4_DP;
493 if (hash_fields & RXH_L4_B_0_1)
494 data |= ENA_ADMIN_RSS_L4_SP;
499 static int ena_get_rss_hash(struct ena_com_dev *ena_dev,
500 struct ethtool_rxnfc *cmd)
502 enum ena_admin_flow_hash_proto proto;
508 switch (cmd->flow_type) {
510 proto = ENA_ADMIN_RSS_TCP4;
513 proto = ENA_ADMIN_RSS_UDP4;
516 proto = ENA_ADMIN_RSS_TCP6;
519 proto = ENA_ADMIN_RSS_UDP6;
522 proto = ENA_ADMIN_RSS_IP4;
525 proto = ENA_ADMIN_RSS_IP6;
528 proto = ENA_ADMIN_RSS_NOT_IP;
541 rc = ena_com_get_hash_ctrl(ena_dev, proto, &hash_fields);
543 /* If device don't have permission, return unsupported */
549 cmd->data = ena_flow_hash_to_flow_type(hash_fields);
554 static int ena_set_rss_hash(struct ena_com_dev *ena_dev,
555 struct ethtool_rxnfc *cmd)
557 enum ena_admin_flow_hash_proto proto;
560 switch (cmd->flow_type) {
562 proto = ENA_ADMIN_RSS_TCP4;
565 proto = ENA_ADMIN_RSS_UDP4;
568 proto = ENA_ADMIN_RSS_TCP6;
571 proto = ENA_ADMIN_RSS_UDP6;
574 proto = ENA_ADMIN_RSS_IP4;
577 proto = ENA_ADMIN_RSS_IP6;
580 proto = ENA_ADMIN_RSS_NOT_IP;
593 hash_fields = ena_flow_data_to_flow_hash(cmd->data);
595 return ena_com_fill_hash_ctrl(ena_dev, proto, hash_fields);
598 static int ena_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info)
600 struct ena_adapter *adapter = netdev_priv(netdev);
605 rc = ena_set_rss_hash(adapter->ena_dev, info);
607 case ETHTOOL_SRXCLSRLDEL:
608 case ETHTOOL_SRXCLSRLINS:
610 netif_err(adapter, drv, netdev,
611 "Command parameter %d is not supported\n", info->cmd);
615 return (rc == -EPERM) ? -EOPNOTSUPP : rc;
618 static int ena_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
621 struct ena_adapter *adapter = netdev_priv(netdev);
625 case ETHTOOL_GRXRINGS:
626 info->data = adapter->num_queues;
630 rc = ena_get_rss_hash(adapter->ena_dev, info);
632 case ETHTOOL_GRXCLSRLCNT:
633 case ETHTOOL_GRXCLSRULE:
634 case ETHTOOL_GRXCLSRLALL:
636 netif_err(adapter, drv, netdev,
637 "Command parameter %d is not supported\n", info->cmd);
641 return (rc == -EPERM) ? -EOPNOTSUPP : rc;
644 static u32 ena_get_rxfh_indir_size(struct net_device *netdev)
646 return ENA_RX_RSS_TABLE_SIZE;
649 static u32 ena_get_rxfh_key_size(struct net_device *netdev)
651 return ENA_HASH_KEY_SIZE;
654 static int ena_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
657 struct ena_adapter *adapter = netdev_priv(netdev);
658 enum ena_admin_hash_functions ena_func;
662 rc = ena_com_indirect_table_get(adapter->ena_dev, indir);
666 rc = ena_com_get_hash_function(adapter->ena_dev, &ena_func, key);
671 case ENA_ADMIN_TOEPLITZ:
672 func = ETH_RSS_HASH_TOP;
674 case ENA_ADMIN_CRC32:
675 func = ETH_RSS_HASH_XOR;
678 netif_err(adapter, drv, netdev,
679 "Command parameter is not supported\n");
689 static int ena_set_rxfh(struct net_device *netdev, const u32 *indir,
690 const u8 *key, const u8 hfunc)
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;
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]),
703 netif_err(adapter, drv, netdev,
704 "Cannot fill indirect table (index is too large)\n");
709 rc = ena_com_indirect_table_set(ena_dev);
711 netif_err(adapter, drv, netdev,
712 "Cannot set indirect table\n");
713 return rc == -EPERM ? -EOPNOTSUPP : rc;
718 case ETH_RSS_HASH_TOP:
719 func = ENA_ADMIN_TOEPLITZ;
721 case ETH_RSS_HASH_XOR:
722 func = ENA_ADMIN_CRC32;
725 netif_err(adapter, drv, netdev, "Unsupported hfunc %d\n",
731 rc = ena_com_fill_hash_function(ena_dev, func, key,
735 netif_err(adapter, drv, netdev, "Cannot fill key\n");
736 return rc == -EPERM ? -EOPNOTSUPP : rc;
743 static void ena_get_channels(struct net_device *netdev,
744 struct ethtool_channels *channels)
746 struct ena_adapter *adapter = netdev_priv(netdev);
748 channels->max_rx = ENA_MAX_NUM_IO_QUEUES;
749 channels->max_tx = ENA_MAX_NUM_IO_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;
758 static int ena_get_tunable(struct net_device *netdev,
759 const struct ethtool_tunable *tuna, void *data)
761 struct ena_adapter *adapter = netdev_priv(netdev);
765 case ETHTOOL_RX_COPYBREAK:
766 *(u32 *)data = adapter->rx_copybreak;
776 static int ena_set_tunable(struct net_device *netdev,
777 const struct ethtool_tunable *tuna,
780 struct ena_adapter *adapter = netdev_priv(netdev);
785 case ETHTOOL_RX_COPYBREAK:
787 if (len > adapter->netdev->mtu) {
791 adapter->rx_copybreak = len;
801 static 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,
824 void ena_set_ethtool_ops(struct net_device *netdev)
826 netdev->ethtool_ops = &ena_ethtool_ops;
829 static void ena_dump_stats_ex(struct ena_adapter *adapter, u8 *buf)
831 struct net_device *netdev = adapter->netdev;
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");
843 strings_buf = devm_kzalloc(&adapter->pdev->dev,
844 strings_num * ETH_GSTRING_LEN,
847 netif_err(adapter, drv, netdev,
848 "failed to alloc strings_buf\n");
852 data_buf = devm_kzalloc(&adapter->pdev->dev,
853 strings_num * sizeof(u64),
856 netif_err(adapter, drv, netdev,
857 "failed to allocate data buf\n");
858 devm_kfree(&adapter->pdev->dev, strings_buf);
862 ena_get_strings(netdev, ETH_SS_STATS, strings_buf);
863 ena_get_ethtool_stats(netdev, NULL, data_buf);
865 /* If there is a buffer, dump stats, otherwise print them to dmesg */
867 for (i = 0; i < strings_num; i++) {
868 rc = snprintf(buf, ETH_GSTRING_LEN + sizeof(u64),
870 strings_buf + i * ETH_GSTRING_LEN,
875 for (i = 0; i < strings_num; i++)
876 netif_err(adapter, drv, netdev, "%s: %llu\n",
877 strings_buf + i * ETH_GSTRING_LEN,
880 devm_kfree(&adapter->pdev->dev, strings_buf);
881 devm_kfree(&adapter->pdev->dev, data_buf);
884 void ena_dump_stats_to_buf(struct ena_adapter *adapter, u8 *buf)
889 ena_dump_stats_ex(adapter, buf);
892 void ena_dump_stats_to_dmesg(struct ena_adapter *adapter)
894 ena_dump_stats_ex(adapter, NULL);