1 /*
2  * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  *
32  */
33 
34 #include <linux/kernel.h>
35 #include <linux/ethtool.h>
36 #include <linux/netdevice.h>
37 
38 #include "mlx4_en.h"
39 #include "en_port.h"
40 
41 
42 static void
43 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
44 {
45 	struct mlx4_en_priv *priv = netdev_priv(dev);
46 	struct mlx4_en_dev *mdev = priv->mdev;
47 
48 	strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
49 	strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")",
50 		sizeof(drvinfo->version));
51 	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
52 		"%d.%d.%d",
53 		(u16) (mdev->dev->caps.fw_ver >> 32),
54 		(u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
55 		(u16) (mdev->dev->caps.fw_ver & 0xffff));
56 	strlcpy(drvinfo->bus_info, pci_name(mdev->dev->pdev),
57 		sizeof(drvinfo->bus_info));
58 	drvinfo->n_stats = 0;
59 	drvinfo->regdump_len = 0;
60 	drvinfo->eedump_len = 0;
61 }
62 
63 static const char main_strings[][ETH_GSTRING_LEN] = {
64 	"rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
65 	"tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
66 	"rx_length_errors", "rx_over_errors", "rx_crc_errors",
67 	"rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
68 	"tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
69 	"tx_heartbeat_errors", "tx_window_errors",
70 
71 	/* port statistics */
72 	"tso_packets",
73 	"queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
74 	"rx_csum_good", "rx_csum_none", "tx_chksum_offload",
75 
76 	/* packet statistics */
77 	"broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
78 	"rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
79 	"tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
80 	"tx_prio_6", "tx_prio_7",
81 };
82 #define NUM_MAIN_STATS	21
83 #define NUM_ALL_STATS	(NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
84 
85 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
86 	"Interupt Test",
87 	"Link Test",
88 	"Speed Test",
89 	"Register Test",
90 	"Loopback Test",
91 };
92 
93 static u32 mlx4_en_get_msglevel(struct net_device *dev)
94 {
95 	return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
96 }
97 
98 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
99 {
100 	((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
101 }
102 
103 static void mlx4_en_get_wol(struct net_device *netdev,
104 			    struct ethtool_wolinfo *wol)
105 {
106 	struct mlx4_en_priv *priv = netdev_priv(netdev);
107 	int err = 0;
108 	u64 config = 0;
109 	u64 mask;
110 
111 	if ((priv->port < 1) || (priv->port > 2)) {
112 		en_err(priv, "Failed to get WoL information\n");
113 		return;
114 	}
115 
116 	mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
117 		MLX4_DEV_CAP_FLAG_WOL_PORT2;
118 
119 	if (!(priv->mdev->dev->caps.flags & mask)) {
120 		wol->supported = 0;
121 		wol->wolopts = 0;
122 		return;
123 	}
124 
125 	err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
126 	if (err) {
127 		en_err(priv, "Failed to get WoL information\n");
128 		return;
129 	}
130 
131 	if (config & MLX4_EN_WOL_MAGIC)
132 		wol->supported = WAKE_MAGIC;
133 	else
134 		wol->supported = 0;
135 
136 	if (config & MLX4_EN_WOL_ENABLED)
137 		wol->wolopts = WAKE_MAGIC;
138 	else
139 		wol->wolopts = 0;
140 }
141 
142 static int mlx4_en_set_wol(struct net_device *netdev,
143 			    struct ethtool_wolinfo *wol)
144 {
145 	struct mlx4_en_priv *priv = netdev_priv(netdev);
146 	u64 config = 0;
147 	int err = 0;
148 	u64 mask;
149 
150 	if ((priv->port < 1) || (priv->port > 2))
151 		return -EOPNOTSUPP;
152 
153 	mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
154 		MLX4_DEV_CAP_FLAG_WOL_PORT2;
155 
156 	if (!(priv->mdev->dev->caps.flags & mask))
157 		return -EOPNOTSUPP;
158 
159 	if (wol->supported & ~WAKE_MAGIC)
160 		return -EINVAL;
161 
162 	err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
163 	if (err) {
164 		en_err(priv, "Failed to get WoL info, unable to modify\n");
165 		return err;
166 	}
167 
168 	if (wol->wolopts & WAKE_MAGIC) {
169 		config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
170 				MLX4_EN_WOL_MAGIC;
171 	} else {
172 		config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
173 		config |= MLX4_EN_WOL_DO_MODIFY;
174 	}
175 
176 	err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
177 	if (err)
178 		en_err(priv, "Failed to set WoL information\n");
179 
180 	return err;
181 }
182 
183 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
184 {
185 	struct mlx4_en_priv *priv = netdev_priv(dev);
186 	int bit_count = hweight64(priv->stats_bitmap);
187 
188 	switch (sset) {
189 	case ETH_SS_STATS:
190 		return (priv->stats_bitmap ? bit_count : NUM_ALL_STATS) +
191 			(priv->tx_ring_num + priv->rx_ring_num) * 2;
192 	case ETH_SS_TEST:
193 		return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
194 					& MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
195 	default:
196 		return -EOPNOTSUPP;
197 	}
198 }
199 
200 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
201 		struct ethtool_stats *stats, uint64_t *data)
202 {
203 	struct mlx4_en_priv *priv = netdev_priv(dev);
204 	int index = 0;
205 	int i, j = 0;
206 
207 	spin_lock_bh(&priv->stats_lock);
208 
209 	if (!(priv->stats_bitmap)) {
210 		for (i = 0; i < NUM_MAIN_STATS; i++)
211 			data[index++] =
212 				((unsigned long *) &priv->stats)[i];
213 		for (i = 0; i < NUM_PORT_STATS; i++)
214 			data[index++] =
215 				((unsigned long *) &priv->port_stats)[i];
216 		for (i = 0; i < NUM_PKT_STATS; i++)
217 			data[index++] =
218 				((unsigned long *) &priv->pkstats)[i];
219 	} else {
220 		for (i = 0; i < NUM_MAIN_STATS; i++) {
221 			if ((priv->stats_bitmap >> j) & 1)
222 				data[index++] =
223 				((unsigned long *) &priv->stats)[i];
224 			j++;
225 		}
226 		for (i = 0; i < NUM_PORT_STATS; i++) {
227 			if ((priv->stats_bitmap >> j) & 1)
228 				data[index++] =
229 				((unsigned long *) &priv->port_stats)[i];
230 			j++;
231 		}
232 	}
233 	for (i = 0; i < priv->tx_ring_num; i++) {
234 		data[index++] = priv->tx_ring[i].packets;
235 		data[index++] = priv->tx_ring[i].bytes;
236 	}
237 	for (i = 0; i < priv->rx_ring_num; i++) {
238 		data[index++] = priv->rx_ring[i].packets;
239 		data[index++] = priv->rx_ring[i].bytes;
240 	}
241 	spin_unlock_bh(&priv->stats_lock);
242 
243 }
244 
245 static void mlx4_en_self_test(struct net_device *dev,
246 			      struct ethtool_test *etest, u64 *buf)
247 {
248 	mlx4_en_ex_selftest(dev, &etest->flags, buf);
249 }
250 
251 static void mlx4_en_get_strings(struct net_device *dev,
252 				uint32_t stringset, uint8_t *data)
253 {
254 	struct mlx4_en_priv *priv = netdev_priv(dev);
255 	int index = 0;
256 	int i;
257 
258 	switch (stringset) {
259 	case ETH_SS_TEST:
260 		for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
261 			strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
262 		if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
263 			for (; i < MLX4_EN_NUM_SELF_TEST; i++)
264 				strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
265 		break;
266 
267 	case ETH_SS_STATS:
268 		/* Add main counters */
269 		if (!priv->stats_bitmap) {
270 			for (i = 0; i < NUM_MAIN_STATS; i++)
271 				strcpy(data + (index++) * ETH_GSTRING_LEN,
272 					main_strings[i]);
273 			for (i = 0; i < NUM_PORT_STATS; i++)
274 				strcpy(data + (index++) * ETH_GSTRING_LEN,
275 					main_strings[i +
276 					NUM_MAIN_STATS]);
277 			for (i = 0; i < NUM_PKT_STATS; i++)
278 				strcpy(data + (index++) * ETH_GSTRING_LEN,
279 					main_strings[i +
280 					NUM_MAIN_STATS +
281 					NUM_PORT_STATS]);
282 		} else
283 			for (i = 0; i < NUM_MAIN_STATS + NUM_PORT_STATS; i++) {
284 				if ((priv->stats_bitmap >> i) & 1) {
285 					strcpy(data +
286 					       (index++) * ETH_GSTRING_LEN,
287 					       main_strings[i]);
288 				}
289 				if (!(priv->stats_bitmap >> i))
290 					break;
291 			}
292 		for (i = 0; i < priv->tx_ring_num; i++) {
293 			sprintf(data + (index++) * ETH_GSTRING_LEN,
294 				"tx%d_packets", i);
295 			sprintf(data + (index++) * ETH_GSTRING_LEN,
296 				"tx%d_bytes", i);
297 		}
298 		for (i = 0; i < priv->rx_ring_num; i++) {
299 			sprintf(data + (index++) * ETH_GSTRING_LEN,
300 				"rx%d_packets", i);
301 			sprintf(data + (index++) * ETH_GSTRING_LEN,
302 				"rx%d_bytes", i);
303 		}
304 		break;
305 	}
306 }
307 
308 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
309 {
310 	struct mlx4_en_priv *priv = netdev_priv(dev);
311 	int trans_type;
312 
313 	cmd->autoneg = AUTONEG_DISABLE;
314 	cmd->supported = SUPPORTED_10000baseT_Full;
315 	cmd->advertising = ADVERTISED_10000baseT_Full;
316 
317 	if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
318 		return -ENOMEM;
319 
320 	trans_type = priv->port_state.transciver;
321 	if (netif_carrier_ok(dev)) {
322 		ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
323 		cmd->duplex = DUPLEX_FULL;
324 	} else {
325 		ethtool_cmd_speed_set(cmd, -1);
326 		cmd->duplex = -1;
327 	}
328 
329 	if (trans_type > 0 && trans_type <= 0xC) {
330 		cmd->port = PORT_FIBRE;
331 		cmd->transceiver = XCVR_EXTERNAL;
332 		cmd->supported |= SUPPORTED_FIBRE;
333 		cmd->advertising |= ADVERTISED_FIBRE;
334 	} else if (trans_type == 0x80 || trans_type == 0) {
335 		cmd->port = PORT_TP;
336 		cmd->transceiver = XCVR_INTERNAL;
337 		cmd->supported |= SUPPORTED_TP;
338 		cmd->advertising |= ADVERTISED_TP;
339 	} else  {
340 		cmd->port = -1;
341 		cmd->transceiver = -1;
342 	}
343 	return 0;
344 }
345 
346 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
347 {
348 	if ((cmd->autoneg == AUTONEG_ENABLE) ||
349 	    (ethtool_cmd_speed(cmd) != SPEED_10000) ||
350 	    (cmd->duplex != DUPLEX_FULL))
351 		return -EINVAL;
352 
353 	/* Nothing to change */
354 	return 0;
355 }
356 
357 static int mlx4_en_get_coalesce(struct net_device *dev,
358 			      struct ethtool_coalesce *coal)
359 {
360 	struct mlx4_en_priv *priv = netdev_priv(dev);
361 
362 	coal->tx_coalesce_usecs = 0;
363 	coal->tx_max_coalesced_frames = 0;
364 	coal->rx_coalesce_usecs = priv->rx_usecs;
365 	coal->rx_max_coalesced_frames = priv->rx_frames;
366 
367 	coal->pkt_rate_low = priv->pkt_rate_low;
368 	coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
369 	coal->pkt_rate_high = priv->pkt_rate_high;
370 	coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
371 	coal->rate_sample_interval = priv->sample_interval;
372 	coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
373 	return 0;
374 }
375 
376 static int mlx4_en_set_coalesce(struct net_device *dev,
377 			      struct ethtool_coalesce *coal)
378 {
379 	struct mlx4_en_priv *priv = netdev_priv(dev);
380 	int err, i;
381 
382 	priv->rx_frames = (coal->rx_max_coalesced_frames ==
383 			   MLX4_EN_AUTO_CONF) ?
384 				MLX4_EN_RX_COAL_TARGET :
385 				coal->rx_max_coalesced_frames;
386 	priv->rx_usecs = (coal->rx_coalesce_usecs ==
387 			  MLX4_EN_AUTO_CONF) ?
388 				MLX4_EN_RX_COAL_TIME :
389 				coal->rx_coalesce_usecs;
390 
391 	/* Set adaptive coalescing params */
392 	priv->pkt_rate_low = coal->pkt_rate_low;
393 	priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
394 	priv->pkt_rate_high = coal->pkt_rate_high;
395 	priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
396 	priv->sample_interval = coal->rate_sample_interval;
397 	priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
398 	if (priv->adaptive_rx_coal)
399 		return 0;
400 
401 	for (i = 0; i < priv->rx_ring_num; i++) {
402 		priv->rx_cq[i].moder_cnt = priv->rx_frames;
403 		priv->rx_cq[i].moder_time = priv->rx_usecs;
404 		priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
405 		err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
406 		if (err)
407 			return err;
408 	}
409 	return 0;
410 }
411 
412 static int mlx4_en_set_pauseparam(struct net_device *dev,
413 				struct ethtool_pauseparam *pause)
414 {
415 	struct mlx4_en_priv *priv = netdev_priv(dev);
416 	struct mlx4_en_dev *mdev = priv->mdev;
417 	int err;
418 
419 	priv->prof->tx_pause = pause->tx_pause != 0;
420 	priv->prof->rx_pause = pause->rx_pause != 0;
421 	err = mlx4_SET_PORT_general(mdev->dev, priv->port,
422 				    priv->rx_skb_size + ETH_FCS_LEN,
423 				    priv->prof->tx_pause,
424 				    priv->prof->tx_ppp,
425 				    priv->prof->rx_pause,
426 				    priv->prof->rx_ppp);
427 	if (err)
428 		en_err(priv, "Failed setting pause params\n");
429 
430 	return err;
431 }
432 
433 static void mlx4_en_get_pauseparam(struct net_device *dev,
434 				 struct ethtool_pauseparam *pause)
435 {
436 	struct mlx4_en_priv *priv = netdev_priv(dev);
437 
438 	pause->tx_pause = priv->prof->tx_pause;
439 	pause->rx_pause = priv->prof->rx_pause;
440 }
441 
442 static int mlx4_en_set_ringparam(struct net_device *dev,
443 				 struct ethtool_ringparam *param)
444 {
445 	struct mlx4_en_priv *priv = netdev_priv(dev);
446 	struct mlx4_en_dev *mdev = priv->mdev;
447 	u32 rx_size, tx_size;
448 	int port_up = 0;
449 	int err = 0;
450 	int i;
451 
452 	if (param->rx_jumbo_pending || param->rx_mini_pending)
453 		return -EINVAL;
454 
455 	rx_size = roundup_pow_of_two(param->rx_pending);
456 	rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
457 	rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
458 	tx_size = roundup_pow_of_two(param->tx_pending);
459 	tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
460 	tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
461 
462 	if (rx_size == (priv->port_up ? priv->rx_ring[0].actual_size :
463 					priv->rx_ring[0].size) &&
464 	    tx_size == priv->tx_ring[0].size)
465 		return 0;
466 
467 	mutex_lock(&mdev->state_lock);
468 	if (priv->port_up) {
469 		port_up = 1;
470 		mlx4_en_stop_port(dev);
471 	}
472 
473 	mlx4_en_free_resources(priv);
474 
475 	priv->prof->tx_ring_size = tx_size;
476 	priv->prof->rx_ring_size = rx_size;
477 
478 	err = mlx4_en_alloc_resources(priv);
479 	if (err) {
480 		en_err(priv, "Failed reallocating port resources\n");
481 		goto out;
482 	}
483 	if (port_up) {
484 		err = mlx4_en_start_port(dev);
485 		if (err)
486 			en_err(priv, "Failed starting port\n");
487 	}
488 
489 	for (i = 0; i < priv->rx_ring_num; i++) {
490 		priv->rx_cq[i].moder_cnt = priv->rx_frames;
491 		priv->rx_cq[i].moder_time = priv->rx_usecs;
492 		priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
493 		err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
494 		if (err)
495 			goto out;
496 	}
497 
498 out:
499 	mutex_unlock(&mdev->state_lock);
500 	return err;
501 }
502 
503 static void mlx4_en_get_ringparam(struct net_device *dev,
504 				  struct ethtool_ringparam *param)
505 {
506 	struct mlx4_en_priv *priv = netdev_priv(dev);
507 
508 	memset(param, 0, sizeof(*param));
509 	param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
510 	param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
511 	param->rx_pending = priv->port_up ?
512 		priv->rx_ring[0].actual_size : priv->rx_ring[0].size;
513 	param->tx_pending = priv->tx_ring[0].size;
514 }
515 
516 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
517 {
518 	struct mlx4_en_priv *priv = netdev_priv(dev);
519 
520 	return priv->rx_ring_num;
521 }
522 
523 static int mlx4_en_get_rxfh_indir(struct net_device *dev, u32 *ring_index)
524 {
525 	struct mlx4_en_priv *priv = netdev_priv(dev);
526 	struct mlx4_en_rss_map *rss_map = &priv->rss_map;
527 	int rss_rings;
528 	size_t n = priv->rx_ring_num;
529 	int err = 0;
530 
531 	rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num;
532 
533 	while (n--) {
534 		ring_index[n] = rss_map->qps[n % rss_rings].qpn -
535 			rss_map->base_qpn;
536 	}
537 
538 	return err;
539 }
540 
541 static int mlx4_en_set_rxfh_indir(struct net_device *dev,
542 		const u32 *ring_index)
543 {
544 	struct mlx4_en_priv *priv = netdev_priv(dev);
545 	struct mlx4_en_dev *mdev = priv->mdev;
546 	int port_up = 0;
547 	int err = 0;
548 	int i;
549 	int rss_rings = 0;
550 
551 	/* Calculate RSS table size and make sure flows are spread evenly
552 	 * between rings
553 	 */
554 	for (i = 0; i < priv->rx_ring_num; i++) {
555 		if (i > 0 && !ring_index[i] && !rss_rings)
556 			rss_rings = i;
557 
558 		if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num)))
559 			return -EINVAL;
560 	}
561 
562 	if (!rss_rings)
563 		rss_rings = priv->rx_ring_num;
564 
565 	/* RSS table size must be an order of 2 */
566 	if (!is_power_of_2(rss_rings))
567 		return -EINVAL;
568 
569 	mutex_lock(&mdev->state_lock);
570 	if (priv->port_up) {
571 		port_up = 1;
572 		mlx4_en_stop_port(dev);
573 	}
574 
575 	priv->prof->rss_rings = rss_rings;
576 
577 	if (port_up) {
578 		err = mlx4_en_start_port(dev);
579 		if (err)
580 			en_err(priv, "Failed starting port\n");
581 	}
582 
583 	mutex_unlock(&mdev->state_lock);
584 	return err;
585 }
586 
587 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
588 			     u32 *rule_locs)
589 {
590 	struct mlx4_en_priv *priv = netdev_priv(dev);
591 	int err = 0;
592 
593 	switch (cmd->cmd) {
594 	case ETHTOOL_GRXRINGS:
595 		cmd->data = priv->rx_ring_num;
596 		break;
597 	default:
598 		err = -EOPNOTSUPP;
599 		break;
600 	}
601 
602 	return err;
603 }
604 
605 const struct ethtool_ops mlx4_en_ethtool_ops = {
606 	.get_drvinfo = mlx4_en_get_drvinfo,
607 	.get_settings = mlx4_en_get_settings,
608 	.set_settings = mlx4_en_set_settings,
609 	.get_link = ethtool_op_get_link,
610 	.get_strings = mlx4_en_get_strings,
611 	.get_sset_count = mlx4_en_get_sset_count,
612 	.get_ethtool_stats = mlx4_en_get_ethtool_stats,
613 	.self_test = mlx4_en_self_test,
614 	.get_wol = mlx4_en_get_wol,
615 	.set_wol = mlx4_en_set_wol,
616 	.get_msglevel = mlx4_en_get_msglevel,
617 	.set_msglevel = mlx4_en_set_msglevel,
618 	.get_coalesce = mlx4_en_get_coalesce,
619 	.set_coalesce = mlx4_en_set_coalesce,
620 	.get_pauseparam = mlx4_en_get_pauseparam,
621 	.set_pauseparam = mlx4_en_set_pauseparam,
622 	.get_ringparam = mlx4_en_get_ringparam,
623 	.set_ringparam = mlx4_en_set_ringparam,
624 	.get_rxnfc = mlx4_en_get_rxnfc,
625 	.get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
626 	.get_rxfh_indir = mlx4_en_get_rxfh_indir,
627 	.set_rxfh_indir = mlx4_en_set_rxfh_indir,
628 };
629 
630 
631 
632 
633 
634