summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/mellanox/mlx4/en_port.c
blob: 532997eba698475ae558a8dcf27b038331b0e8f9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
/*
 * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */


#include <linux/if_vlan.h>

#include <linux/mlx4/device.h>
#include <linux/mlx4/cmd.h>

#include "en_port.h"
#include "mlx4_en.h"


int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv)
{
	struct mlx4_cmd_mailbox *mailbox;
	struct mlx4_set_vlan_fltr_mbox *filter;
	int i;
	int j;
	int index = 0;
	u32 entry;
	int err = 0;

	mailbox = mlx4_alloc_cmd_mailbox(dev);
	if (IS_ERR(mailbox))
		return PTR_ERR(mailbox);

	filter = mailbox->buf;
	for (i = VLAN_FLTR_SIZE - 1; i >= 0; i--) {
		entry = 0;
		for (j = 0; j < 32; j++)
			if (test_bit(index++, priv->active_vlans))
				entry |= 1 << j;
		filter->entry[i] = cpu_to_be32(entry);
	}
	err = mlx4_cmd(dev, mailbox->dma, priv->port, 0, MLX4_CMD_SET_VLAN_FLTR,
		       MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
	mlx4_free_cmd_mailbox(dev, mailbox);
	return err;
}

int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port)
{
	struct mlx4_en_query_port_context *qport_context;
	struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
	struct mlx4_en_port_state *state = &priv->port_state;
	struct mlx4_cmd_mailbox *mailbox;
	int err;

	mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
	if (IS_ERR(mailbox))
		return PTR_ERR(mailbox);
	err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
			   MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
			   MLX4_CMD_WRAPPED);
	if (err)
		goto out;
	qport_context = mailbox->buf;

	/* This command is always accessed from Ethtool context
	 * already synchronized, no need in locking */
	state->link_state = !!(qport_context->link_up & MLX4_EN_LINK_UP_MASK);
	switch (qport_context->link_speed & MLX4_EN_SPEED_MASK) {
	case MLX4_EN_100M_SPEED:
		state->link_speed = SPEED_100;
		break;
	case MLX4_EN_1G_SPEED:
		state->link_speed = SPEED_1000;
		break;
	case MLX4_EN_10G_SPEED_XAUI:
	case MLX4_EN_10G_SPEED_XFI:
		state->link_speed = SPEED_10000;
		break;
	case MLX4_EN_20G_SPEED:
		state->link_speed = SPEED_20000;
		break;
	case MLX4_EN_40G_SPEED:
		state->link_speed = SPEED_40000;
		break;
	case MLX4_EN_56G_SPEED:
		state->link_speed = SPEED_56000;
		break;
	default:
		state->link_speed = -1;
		break;
	}

	state->transceiver = qport_context->transceiver;

	state->flags = 0; /* Reset and recalculate the port flags */
	state->flags |= (qport_context->link_up & MLX4_EN_ANC_MASK) ?
		MLX4_EN_PORT_ANC : 0;
	state->flags |= (qport_context->autoneg & MLX4_EN_AUTONEG_MASK) ?
		MLX4_EN_PORT_ANE : 0;

out:
	mlx4_free_cmd_mailbox(mdev->dev, mailbox);
	return err;
}

/* Each counter set is located in struct mlx4_en_stat_out_mbox
 * with a const offset between its prio components.
 * This function runs over a counter set and sum all of it's prio components.
 */
static unsigned long en_stats_adder(__be64 *start, __be64 *next, int num)
{
	__be64 *curr = start;
	unsigned long ret = 0;
	int i;
	int offset = next - start;

	for (i = 0; i < num; i++) {
		ret += be64_to_cpu(*curr);
		curr += offset;
	}

	return ret;
}

void mlx4_en_fold_software_stats(struct net_device *dev)
{
	struct mlx4_en_priv *priv = netdev_priv(dev);
	struct mlx4_en_dev *mdev = priv->mdev;
	unsigned long packets, bytes;
	int i;

	if (!priv->port_up || mlx4_is_master(mdev->dev))
		return;

	packets = 0;
	bytes = 0;
	for (i = 0; i < priv->rx_ring_num; i++) {
		const struct mlx4_en_rx_ring *ring = priv->rx_ring[i];

		packets += READ_ONCE(ring->packets);
		bytes   += READ_ONCE(ring->bytes);
	}
	dev->stats.rx_packets = packets;
	dev->stats.rx_bytes = bytes;

	packets = 0;
	bytes = 0;
	for (i = 0; i < priv->tx_ring_num[TX]; i++) {
		const struct mlx4_en_tx_ring *ring = priv->tx_ring[TX][i];

		packets += READ_ONCE(ring->packets);
		bytes   += READ_ONCE(ring->bytes);
	}
	dev->stats.tx_packets = packets;
	dev->stats.tx_bytes = bytes;
}

int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
{
	struct mlx4_counter tmp_counter_stats;
	struct mlx4_en_stat_out_mbox *mlx4_en_stats;
	struct mlx4_en_stat_out_flow_control_mbox *flowstats;
	struct net_device *dev = mdev->pndev[port];
	struct mlx4_en_priv *priv = netdev_priv(dev);
	struct net_device_stats *stats = &dev->stats;
	struct mlx4_cmd_mailbox *mailbox, *mailbox_priority;
	u64 in_mod = reset << 8 | port;
	int err;
	int i, counter_index;
	unsigned long sw_tx_dropped = 0;
	unsigned long sw_rx_dropped = 0;

	mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
	if (IS_ERR(mailbox))
		return PTR_ERR(mailbox);

	mailbox_priority = mlx4_alloc_cmd_mailbox(mdev->dev);
	if (IS_ERR(mailbox_priority)) {
		mlx4_free_cmd_mailbox(mdev->dev, mailbox);
		return PTR_ERR(mailbox_priority);
	}

	err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, in_mod, 0,
			   MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B,
			   MLX4_CMD_NATIVE);
	if (err)
		goto out;

	mlx4_en_stats = mailbox->buf;

	memset(&tmp_counter_stats, 0, sizeof(tmp_counter_stats));
	counter_index = mlx4_get_default_counter_index(mdev->dev, port);
	err = mlx4_get_counter_stats(mdev->dev, counter_index,
				     &tmp_counter_stats, reset);

	/* 0xffs indicates invalid value */
	memset(mailbox_priority->buf, 0xff,
	       sizeof(*flowstats) * MLX4_NUM_PRIORITIES);

	if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) {
		memset(mailbox_priority->buf, 0,
		       sizeof(*flowstats) * MLX4_NUM_PRIORITIES);
		err = mlx4_cmd_box(mdev->dev, 0, mailbox_priority->dma,
				   in_mod | MLX4_DUMP_ETH_STATS_FLOW_CONTROL,
				   0, MLX4_CMD_DUMP_ETH_STATS,
				   MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
		if (err)
			goto out;
	}

	flowstats = mailbox_priority->buf;

	spin_lock_bh(&priv->stats_lock);

	mlx4_en_fold_software_stats(dev);

	priv->port_stats.rx_chksum_good = 0;
	priv->port_stats.rx_chksum_none = 0;
	priv->port_stats.rx_chksum_complete = 0;
	priv->port_stats.rx_alloc_pages = 0;
	priv->xdp_stats.rx_xdp_drop    = 0;
	priv->xdp_stats.rx_xdp_redirect = 0;
	priv->xdp_stats.rx_xdp_redirect_fail = 0;
	priv->xdp_stats.rx_xdp_tx      = 0;
	priv->xdp_stats.rx_xdp_tx_full = 0;
	for (i = 0; i < priv->rx_ring_num; i++) {
		const struct mlx4_en_rx_ring *ring = priv->rx_ring[i];

		sw_rx_dropped			+= READ_ONCE(ring->dropped);
		priv->port_stats.rx_chksum_good += READ_ONCE(ring->csum_ok);
		priv->port_stats.rx_chksum_none += READ_ONCE(ring->csum_none);
		priv->port_stats.rx_chksum_complete += READ_ONCE(ring->csum_complete);
		priv->port_stats.rx_alloc_pages += READ_ONCE(ring->rx_alloc_pages);
		priv->xdp_stats.rx_xdp_drop	+= READ_ONCE(ring->xdp_drop);
		priv->xdp_stats.rx_xdp_redirect += READ_ONCE(ring->xdp_redirect);
		priv->xdp_stats.rx_xdp_redirect_fail += READ_ONCE(ring->xdp_redirect_fail);
		priv->xdp_stats.rx_xdp_tx	+= READ_ONCE(ring->xdp_tx);
		priv->xdp_stats.rx_xdp_tx_full	+= READ_ONCE(ring->xdp_tx_full);
	}
	priv->port_stats.tx_chksum_offload = 0;
	priv->port_stats.queue_stopped = 0;
	priv->port_stats.wake_queue = 0;
	priv->port_stats.tso_packets = 0;
	priv->port_stats.xmit_more = 0;

	for (i = 0; i < priv->tx_ring_num[TX]; i++) {
		const struct mlx4_en_tx_ring *ring = priv->tx_ring[TX][i];

		sw_tx_dropped			   += READ_ONCE(ring->tx_dropped);
		priv->port_stats.tx_chksum_offload += READ_ONCE(ring->tx_csum);
		priv->port_stats.queue_stopped     += READ_ONCE(ring->queue_stopped);
		priv->port_stats.wake_queue        += READ_ONCE(ring->wake_queue);
		priv->port_stats.tso_packets       += READ_ONCE(ring->tso_packets);
		priv->port_stats.xmit_more         += READ_ONCE(ring->xmit_more);
	}

	if (!mlx4_is_slave(mdev->dev)) {
		struct mlx4_en_phy_stats *p_stats = &priv->phy_stats;

		p_stats->rx_packets_phy =
			en_stats_adder(&mlx4_en_stats->RTOT_prio_0,
				       &mlx4_en_stats->RTOT_prio_1,
				       NUM_PRIORITIES);
		p_stats->tx_packets_phy =
			en_stats_adder(&mlx4_en_stats->TTOT_prio_0,
				       &mlx4_en_stats->TTOT_prio_1,
				       NUM_PRIORITIES);
		p_stats->rx_bytes_phy =
			en_stats_adder(&mlx4_en_stats->ROCT_prio_0,
				       &mlx4_en_stats->ROCT_prio_1,
				       NUM_PRIORITIES);
		p_stats->tx_bytes_phy =
			en_stats_adder(&mlx4_en_stats->TOCT_prio_0,
				       &mlx4_en_stats->TOCT_prio_1,
				       NUM_PRIORITIES);
		if (mlx4_is_master(mdev->dev)) {
			stats->rx_packets = p_stats->rx_packets_phy;
			stats->tx_packets = p_stats->tx_packets_phy;
			stats->rx_bytes = p_stats->rx_bytes_phy;
			stats->tx_bytes = p_stats->tx_bytes_phy;
		}
	}

	/* net device stats */
	stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +
			   be32_to_cpu(mlx4_en_stats->RJBBR) +
			   be32_to_cpu(mlx4_en_stats->RCRC) +
			   be32_to_cpu(mlx4_en_stats->RRUNT) +
			   be64_to_cpu(mlx4_en_stats->RInRangeLengthErr) +
			   be64_to_cpu(mlx4_en_stats->ROutRangeLengthErr) +
			   be32_to_cpu(mlx4_en_stats->RSHORT) +
			   en_stats_adder(&mlx4_en_stats->RGIANT_prio_0,
					  &mlx4_en_stats->RGIANT_prio_1,
					  NUM_PRIORITIES);
	stats->tx_errors = en_stats_adder(&mlx4_en_stats->TGIANT_prio_0,
					  &mlx4_en_stats->TGIANT_prio_1,
					  NUM_PRIORITIES);
	stats->multicast = en_stats_adder(&mlx4_en_stats->MCAST_prio_0,
					  &mlx4_en_stats->MCAST_prio_1,
					  NUM_PRIORITIES);
	stats->rx_dropped = be32_to_cpu(mlx4_en_stats->RDROP) +
			    sw_rx_dropped;
	stats->rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
	stats->rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
	stats->rx_fifo_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
	stats->tx_dropped = be32_to_cpu(mlx4_en_stats->TDROP) +
			    sw_tx_dropped;

	/* RX stats */
	priv->pkstats.rx_multicast_packets = stats->multicast;
	priv->pkstats.rx_broadcast_packets =
			en_stats_adder(&mlx4_en_stats->RBCAST_prio_0,
				       &mlx4_en_stats->RBCAST_prio_1,
				       NUM_PRIORITIES);
	priv->pkstats.rx_jabbers = be32_to_cpu(mlx4_en_stats->RJBBR);
	priv->pkstats.rx_in_range_length_error =
		be64_to_cpu(mlx4_en_stats->RInRangeLengthErr);
	priv->pkstats.rx_out_range_length_error =
		be64_to_cpu(mlx4_en_stats->ROutRangeLengthErr);

	/* Tx stats */
	priv->pkstats.tx_multicast_packets =
		en_stats_adder(&mlx4_en_stats->TMCAST_prio_0,
			       &mlx4_en_stats->TMCAST_prio_1,
			       NUM_PRIORITIES);
	priv->pkstats.tx_broadcast_packets =
		en_stats_adder(&mlx4_en_stats->TBCAST_prio_0,
			       &mlx4_en_stats->TBCAST_prio_1,
			       NUM_PRIORITIES);

	priv->pkstats.rx_prio[0][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_0);
	priv->pkstats.rx_prio[0][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_0);
	priv->pkstats.rx_prio[1][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_1);
	priv->pkstats.rx_prio[1][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_1);
	priv->pkstats.rx_prio[2][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_2);
	priv->pkstats.rx_prio[2][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_2);
	priv->pkstats.rx_prio[3][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_3);
	priv->pkstats.rx_prio[3][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_3);
	priv->pkstats.rx_prio[4][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_4);
	priv->pkstats.rx_prio[4][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_4);
	priv->pkstats.rx_prio[5][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_5);
	priv->pkstats.rx_prio[5][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_5);
	priv->pkstats.rx_prio[6][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_6);
	priv->pkstats.rx_prio[6][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_6);
	priv->pkstats.rx_prio[7][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_7);
	priv->pkstats.rx_prio[7][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_7);
	priv->pkstats.rx_prio[8][0] = be64_to_cpu(mlx4_en_stats->RTOT_novlan);
	priv->pkstats.rx_prio[8][1] = be64_to_cpu(mlx4_en_stats->ROCT_novlan);
	priv->pkstats.tx_prio[0][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_0);
	priv->pkstats.tx_prio[0][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_0);
	priv->pkstats.tx_prio[1][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_1);
	priv->pkstats.tx_prio[1][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_1);
	priv->pkstats.tx_prio[2][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_2);
	priv->pkstats.tx_prio[2][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_2);
	priv->pkstats.tx_prio[3][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_3);
	priv->pkstats.tx_prio[3][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_3);
	priv->pkstats.tx_prio[4][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_4);
	priv->pkstats.tx_prio[4][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_4);
	priv->pkstats.tx_prio[5][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_5);
	priv->pkstats.tx_prio[5][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_5);
	priv->pkstats.tx_prio[6][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_6);
	priv->pkstats.tx_prio[6][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_6);
	priv->pkstats.tx_prio[7][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_7);
	priv->pkstats.tx_prio[7][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_7);
	priv->pkstats.tx_prio[8][0] = be64_to_cpu(mlx4_en_stats->TTOT_novlan);
	priv->pkstats.tx_prio[8][1] = be64_to_cpu(mlx4_en_stats->TOCT_novlan);

	if (tmp_counter_stats.counter_mode == 0) {
		priv->pf_stats.rx_bytes   = be64_to_cpu(tmp_counter_stats.rx_bytes);
		priv->pf_stats.tx_bytes   = be64_to_cpu(tmp_counter_stats.tx_bytes);
		priv->pf_stats.rx_packets = be64_to_cpu(tmp_counter_stats.rx_frames);
		priv->pf_stats.tx_packets = be64_to_cpu(tmp_counter_stats.tx_frames);
	}

	for (i = 0; i < MLX4_NUM_PRIORITIES; i++)	{
		priv->rx_priority_flowstats[i].rx_pause =
			be64_to_cpu(flowstats[i].rx_pause);
		priv->rx_priority_flowstats[i].rx_pause_duration =
			be64_to_cpu(flowstats[i].rx_pause_duration);
		priv->rx_priority_flowstats[i].rx_pause_transition =
			be64_to_cpu(flowstats[i].rx_pause_transition);
		priv->tx_priority_flowstats[i].tx_pause =
			be64_to_cpu(flowstats[i].tx_pause);
		priv->tx_priority_flowstats[i].tx_pause_duration =
			be64_to_cpu(flowstats[i].tx_pause_duration);
		priv->tx_priority_flowstats[i].tx_pause_transition =
			be64_to_cpu(flowstats[i].tx_pause_transition);
	}

	/* if pfc is not in use, all priorities counters have the same value */
	priv->rx_flowstats.rx_pause =
		be64_to_cpu(flowstats[0].rx_pause);
	priv->rx_flowstats.rx_pause_duration =
		be64_to_cpu(flowstats[0].rx_pause_duration);
	priv->rx_flowstats.rx_pause_transition =
		be64_to_cpu(flowstats[0].rx_pause_transition);
	priv->tx_flowstats.tx_pause =
		be64_to_cpu(flowstats[0].tx_pause);
	priv->tx_flowstats.tx_pause_duration =
		be64_to_cpu(flowstats[0].tx_pause_duration);
	priv->tx_flowstats.tx_pause_transition =
		be64_to_cpu(flowstats[0].tx_pause_transition);

	spin_unlock_bh(&priv->stats_lock);

out:
	mlx4_free_cmd_mailbox(mdev->dev, mailbox);
	mlx4_free_cmd_mailbox(mdev->dev, mailbox_priority);
	return err;
}