1/*
2 * Copyright (c) 2007, 2014 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 <sys/types.h>
35#include <linux/if_vlan.h>
36
37#include <dev/mlx4/device.h>
38#include <dev/mlx4/cmd.h>
39
40#include "en_port.h"
41#include "en.h"
42
43
44int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv)
45{
46	struct mlx4_cmd_mailbox *mailbox;
47	struct mlx4_set_vlan_fltr_mbox *filter;
48	int i;
49	int j;
50	int index = 0;
51	u32 entry;
52	int err = 0;
53
54	mailbox = mlx4_alloc_cmd_mailbox(dev);
55	if (IS_ERR(mailbox))
56		return PTR_ERR(mailbox);
57
58	filter = mailbox->buf;
59	for (i = VLAN_FLTR_SIZE - 1; i >= 0; i--) {
60		entry = 0;
61		for (j = 0; j < 32; j++) {
62			if (test_bit(index, priv->active_vlans))
63				entry |= 1 << j;
64			index++;
65		}
66		filter->entry[i] = cpu_to_be32(entry);
67	}
68	err = mlx4_cmd(dev, mailbox->dma, priv->port, 0, MLX4_CMD_SET_VLAN_FLTR,
69		       MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
70	mlx4_free_cmd_mailbox(dev, mailbox);
71	return err;
72}
73
74int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port)
75{
76	struct mlx4_en_query_port_context *qport_context;
77	struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
78	struct mlx4_en_port_state *state = &priv->port_state;
79	struct mlx4_cmd_mailbox *mailbox;
80	int err;
81
82	mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
83	if (IS_ERR(mailbox))
84		return PTR_ERR(mailbox);
85	err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
86			   MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
87			   MLX4_CMD_WRAPPED);
88	if (err)
89		goto out;
90	qport_context = mailbox->buf;
91
92	/* This command is always accessed from Ethtool context
93	 * already synchronized, no need in locking */
94	state->link_state = !!(qport_context->link_up & MLX4_EN_LINK_UP_MASK);
95	switch (qport_context->link_speed & MLX4_EN_SPEED_MASK) {
96	case MLX4_EN_100M_SPEED:
97		state->link_speed = 100;
98		break;
99	case MLX4_EN_1G_SPEED:
100		state->link_speed = 1000;
101		break;
102	case MLX4_EN_10G_SPEED_XAUI:
103	case MLX4_EN_10G_SPEED_XFI:
104		state->link_speed = 10000;
105		break;
106	case MLX4_EN_20G_SPEED:
107		state->link_speed = 20000;
108		break;
109	case MLX4_EN_40G_SPEED:
110		state->link_speed = 40000;
111		break;
112	case MLX4_EN_56G_SPEED:
113		state->link_speed = 56000;
114		break;
115	default:
116		state->link_speed = -1;
117		break;
118	}
119
120	state->transceiver = qport_context->transceiver;
121
122	state->flags = 0; /* Reset and recalculate the port flags */
123	state->flags |= (qport_context->link_up & MLX4_EN_ANC_MASK) ?
124		MLX4_EN_PORT_ANC : 0;
125	state->flags |= (qport_context->autoneg & MLX4_EN_AUTONEG_MASK) ?
126		MLX4_EN_PORT_ANE : 0;
127
128out:
129	mlx4_free_cmd_mailbox(mdev->dev, mailbox);
130	return err;
131}
132
133/* Each counter set is located in struct mlx4_en_stat_out_mbox
134 * with a const offset between its prio components.
135 * This function runs over a counter set and sum all of it's prio components.
136 */
137static u64 en_stats_adder(__be64 *start, __be64 *next, int num)
138{
139	__be64 *curr = start;
140	u64 ret = 0;
141	int i;
142	int offset = next - start;
143
144	for (i = 0; i < num; i++) {
145		ret += be64_to_cpu(*curr);
146		curr += offset;
147	}
148
149	return ret;
150}
151
152static void mlx4_en_fold_software_stats(struct net_device *dev)
153{
154	struct mlx4_en_priv *priv = netdev_priv(dev);
155	struct mlx4_en_dev *mdev = priv->mdev;
156	u64 packets, bytes;
157	int i;
158
159	if (!priv->port_up || mlx4_is_master(mdev->dev))
160		return;
161
162	packets = 0;
163	bytes = 0;
164	for (i = 0; i < priv->rx_ring_num; i++) {
165		const struct mlx4_en_rx_ring *ring = priv->rx_ring[i];
166
167		packets += READ_ONCE(ring->packets);
168		bytes += READ_ONCE(ring->bytes);
169	}
170	priv->pkstats.rx_packets = packets;
171	priv->pkstats.rx_bytes = bytes;
172
173	packets = 0;
174	bytes = 0;
175	for (i = 0; i < priv->tx_ring_num; i++) {
176		const struct mlx4_en_tx_ring *ring = priv->tx_ring[i];
177
178		packets += READ_ONCE(ring->packets);
179		bytes += READ_ONCE(ring->bytes);
180	}
181	priv->pkstats.tx_packets = packets;
182	priv->pkstats.tx_bytes = bytes;
183}
184
185int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
186{
187	struct mlx4_counter tmp_vport_stats;
188	struct mlx4_en_stat_out_mbox *mlx4_en_stats;
189	struct mlx4_en_stat_out_flow_control_mbox *flowstats;
190	struct net_device *dev = mdev->pndev[port];
191	struct mlx4_en_priv *priv = netdev_priv(dev);
192	struct mlx4_en_vport_stats *vport_stats = &priv->vport_stats;
193	struct mlx4_cmd_mailbox *mailbox;
194	u64 in_mod = reset << 8 | port;
195	int err;
196	int i, counter_index;
197
198	mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
199	if (IS_ERR(mailbox))
200		return PTR_ERR(mailbox);
201	err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, in_mod, 0,
202			   MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B,
203			   MLX4_CMD_NATIVE);
204	if (err)
205		goto out;
206
207	mlx4_en_stats = mailbox->buf;
208
209	spin_lock(&priv->stats_lock);
210
211	priv->port_stats.rx_chksum_good = 0;
212	priv->port_stats.rx_chksum_none = 0;
213	for (i = 0; i < priv->rx_ring_num; i++) {
214		priv->port_stats.rx_chksum_good += priv->rx_ring[i]->csum_ok;
215		priv->port_stats.rx_chksum_none += priv->rx_ring[i]->csum_none;
216	}
217	priv->port_stats.tx_chksum_offload = 0;
218	priv->port_stats.queue_stopped = 0;
219	priv->port_stats.wake_queue = 0;
220	priv->port_stats.oversized_packets = 0;
221	priv->port_stats.tso_packets = 0;
222	priv->port_stats.defrag_attempts = 0;
223
224	for (i = 0; i < priv->tx_ring_num; i++) {
225		const struct mlx4_en_tx_ring *ring;
226		ring = priv->tx_ring[i];
227
228		priv->port_stats.tx_chksum_offload += ring->tx_csum;
229		priv->port_stats.queue_stopped     += ring->queue_stopped;
230		priv->port_stats.wake_queue        += ring->wake_queue;
231		priv->port_stats.oversized_packets += ring->oversized_packets;
232		priv->port_stats.tso_packets       += ring->tso_packets;
233		priv->port_stats.defrag_attempts   += ring->defrag_attempts;
234	}
235
236	priv->pkstats.rx_errors =
237			   be64_to_cpu(mlx4_en_stats->PCS) +
238			   be32_to_cpu(mlx4_en_stats->RJBBR) +
239			   be32_to_cpu(mlx4_en_stats->RCRC) +
240			   be32_to_cpu(mlx4_en_stats->RRUNT) +
241			   be64_to_cpu(mlx4_en_stats->RInRangeLengthErr) +
242			   be64_to_cpu(mlx4_en_stats->ROutRangeLengthErr) +
243			   be32_to_cpu(mlx4_en_stats->RSHORT) +
244			   en_stats_adder(&mlx4_en_stats->RGIANT_prio_0,
245					  &mlx4_en_stats->RGIANT_prio_1,
246					  NUM_PRIORITIES);
247	priv->pkstats.tx_errors =
248	    en_stats_adder(&mlx4_en_stats->TGIANT_prio_0,
249					  &mlx4_en_stats->TGIANT_prio_1,
250					  NUM_PRIORITIES);
251	priv->pkstats.rx_multicast_packets =
252	    en_stats_adder(&mlx4_en_stats->MCAST_prio_0,
253					  &mlx4_en_stats->MCAST_prio_1,
254					  NUM_PRIORITIES);
255	priv->pkstats.rx_dropped = be32_to_cpu(mlx4_en_stats->RDROP);
256	priv->pkstats.rx_length_errors = be32_to_cpu(mlx4_en_stats->RdropLength);
257	priv->pkstats.rx_over_errors = be32_to_cpu(mlx4_en_stats->RdropOvflw);
258	priv->pkstats.rx_crc_errors = be32_to_cpu(mlx4_en_stats->RCRC);
259	priv->pkstats.tx_dropped = be32_to_cpu(mlx4_en_stats->TDROP);
260
261	/* RX stats */
262	priv->pkstats.rx_packets = en_stats_adder(&mlx4_en_stats->RTOT_prio_0,
263					   &mlx4_en_stats->RTOT_prio_1,
264					   NUM_PRIORITIES);
265	priv->pkstats.rx_bytes = en_stats_adder(&mlx4_en_stats->ROCT_prio_0,
266					 &mlx4_en_stats->ROCT_prio_1,
267					 NUM_PRIORITIES);
268	priv->pkstats.rx_broadcast_packets =
269			en_stats_adder(&mlx4_en_stats->RBCAST_prio_0,
270				       &mlx4_en_stats->RBCAST_prio_1,
271				       NUM_PRIORITIES);
272	priv->pkstats.rx_jabbers = be32_to_cpu(mlx4_en_stats->RJBBR);
273	priv->pkstats.rx_in_range_length_error =
274		be64_to_cpu(mlx4_en_stats->RInRangeLengthErr);
275	priv->pkstats.rx_out_range_length_error =
276		be64_to_cpu(mlx4_en_stats->ROutRangeLengthErr);
277
278	/* Tx stats */
279	priv->pkstats.tx_packets = en_stats_adder(&mlx4_en_stats->TTOT_prio_0,
280					   &mlx4_en_stats->TTOT_prio_1,
281					   NUM_PRIORITIES);
282	priv->pkstats.tx_bytes = en_stats_adder(&mlx4_en_stats->TOCT_prio_0,
283					 &mlx4_en_stats->TOCT_prio_1,
284					 NUM_PRIORITIES);
285	priv->pkstats.tx_multicast_packets =
286		en_stats_adder(&mlx4_en_stats->TMCAST_prio_0,
287			       &mlx4_en_stats->TMCAST_prio_1,
288			       NUM_PRIORITIES);
289	priv->pkstats.tx_broadcast_packets =
290		en_stats_adder(&mlx4_en_stats->TBCAST_prio_0,
291			       &mlx4_en_stats->TBCAST_prio_1,
292			       NUM_PRIORITIES);
293
294	priv->pkstats.rx_prio[0][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_0);
295	priv->pkstats.rx_prio[0][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_0);
296	priv->pkstats.rx_prio[1][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_1);
297	priv->pkstats.rx_prio[1][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_1);
298	priv->pkstats.rx_prio[2][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_2);
299	priv->pkstats.rx_prio[2][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_2);
300	priv->pkstats.rx_prio[3][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_3);
301	priv->pkstats.rx_prio[3][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_3);
302	priv->pkstats.rx_prio[4][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_4);
303	priv->pkstats.rx_prio[4][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_4);
304	priv->pkstats.rx_prio[5][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_5);
305	priv->pkstats.rx_prio[5][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_5);
306	priv->pkstats.rx_prio[6][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_6);
307	priv->pkstats.rx_prio[6][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_6);
308	priv->pkstats.rx_prio[7][0] = be64_to_cpu(mlx4_en_stats->RTOT_prio_7);
309	priv->pkstats.rx_prio[7][1] = be64_to_cpu(mlx4_en_stats->ROCT_prio_7);
310	priv->pkstats.rx_prio[8][0] = be64_to_cpu(mlx4_en_stats->RTOT_novlan);
311	priv->pkstats.rx_prio[8][1] = be64_to_cpu(mlx4_en_stats->ROCT_novlan);
312	priv->pkstats.tx_prio[0][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_0);
313	priv->pkstats.tx_prio[0][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_0);
314	priv->pkstats.tx_prio[1][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_1);
315	priv->pkstats.tx_prio[1][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_1);
316	priv->pkstats.tx_prio[2][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_2);
317	priv->pkstats.tx_prio[2][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_2);
318	priv->pkstats.tx_prio[3][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_3);
319	priv->pkstats.tx_prio[3][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_3);
320	priv->pkstats.tx_prio[4][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_4);
321	priv->pkstats.tx_prio[4][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_4);
322	priv->pkstats.tx_prio[5][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_5);
323	priv->pkstats.tx_prio[5][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_5);
324	priv->pkstats.tx_prio[6][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_6);
325	priv->pkstats.tx_prio[6][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_6);
326	priv->pkstats.tx_prio[7][0] = be64_to_cpu(mlx4_en_stats->TTOT_prio_7);
327	priv->pkstats.tx_prio[7][1] = be64_to_cpu(mlx4_en_stats->TOCT_prio_7);
328	priv->pkstats.tx_prio[8][0] = be64_to_cpu(mlx4_en_stats->TTOT_novlan);
329	priv->pkstats.tx_prio[8][1] = be64_to_cpu(mlx4_en_stats->TOCT_novlan);
330
331	mlx4_en_fold_software_stats(dev);
332
333	spin_unlock(&priv->stats_lock);
334
335	memset(&tmp_vport_stats, 0, sizeof(tmp_vport_stats));
336	counter_index = mlx4_get_default_counter_index(mdev->dev, port);
337	err = mlx4_get_counter_stats(mdev->dev, counter_index,
338				     &tmp_vport_stats, reset);
339
340	spin_lock(&priv->stats_lock);
341	if (!err) {
342		/* ethtool stats format */
343		vport_stats->rx_bytes = be64_to_cpu(tmp_vport_stats.rx_bytes);
344		vport_stats->rx_frames = be64_to_cpu(tmp_vport_stats.rx_frames);
345		vport_stats->tx_bytes = be64_to_cpu(tmp_vport_stats.tx_bytes);
346		vport_stats->tx_frames = be64_to_cpu(tmp_vport_stats.tx_frames);
347	}
348
349#if __FreeBSD_version >= 1100000
350	if (reset == 0) {
351		if_inc_counter(dev, IFCOUNTER_IPACKETS,
352		    priv->pkstats.rx_packets - priv->pkstats_last.rx_packets);
353		if_inc_counter(dev, IFCOUNTER_OPACKETS,
354		    priv->pkstats.tx_packets - priv->pkstats_last.tx_packets);
355		if_inc_counter(dev, IFCOUNTER_IBYTES,
356		    priv->pkstats.rx_bytes - priv->pkstats_last.rx_bytes);
357		if_inc_counter(dev, IFCOUNTER_OBYTES,
358		    priv->pkstats.tx_bytes - priv->pkstats_last.tx_bytes);
359		if_inc_counter(dev, IFCOUNTER_IERRORS,
360		    priv->pkstats.rx_errors - priv->pkstats_last.rx_errors);
361		if_inc_counter(dev, IFCOUNTER_IQDROPS,
362		    priv->pkstats.rx_dropped - priv->pkstats_last.rx_dropped);
363		if_inc_counter(dev, IFCOUNTER_IMCASTS,
364		    priv->pkstats.rx_multicast_packets - priv->pkstats_last.rx_multicast_packets);
365		if_inc_counter(dev, IFCOUNTER_OMCASTS,
366		    priv->pkstats.tx_multicast_packets - priv->pkstats_last.tx_multicast_packets);
367	}
368	priv->pkstats_last = priv->pkstats;
369#else
370	dev->if_ipackets        = priv->pkstats.rx_packets;
371	dev->if_opackets        = priv->pkstats.tx_packets;
372	dev->if_ibytes          = priv->pkstats.rx_bytes;
373	dev->if_obytes          = priv->pkstats.tx_bytes;
374	dev->if_ierrors         = priv->pkstats.rx_errors;
375	dev->if_iqdrops         = priv->pkstats.rx_dropped;
376	dev->if_imcasts         = priv->pkstats.rx_multicast_packets;
377	dev->if_omcasts         = priv->pkstats.tx_multicast_packets;
378	dev->if_collisions      = 0;
379#endif
380
381	spin_unlock(&priv->stats_lock);
382
383	/* 0xffs indicates invalid value */
384	memset(mailbox->buf, 0xff, sizeof(*flowstats) * MLX4_NUM_PRIORITIES);
385
386	if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) {
387		memset(mailbox->buf, 0,
388		       sizeof(*flowstats) * MLX4_NUM_PRIORITIES);
389		err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma,
390				   in_mod | MLX4_DUMP_ETH_STATS_FLOW_CONTROL,
391				   0, MLX4_CMD_DUMP_ETH_STATS,
392				   MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
393		if (err)
394			goto out;
395	}
396
397	flowstats = mailbox->buf;
398
399	spin_lock(&priv->stats_lock);
400
401	for (i = 0; i < MLX4_NUM_PRIORITIES; i++)	{
402		priv->rx_priority_flowstats[i].rx_pause =
403			be64_to_cpu(flowstats[i].rx_pause);
404		priv->rx_priority_flowstats[i].rx_pause_duration =
405			be64_to_cpu(flowstats[i].rx_pause_duration);
406		priv->rx_priority_flowstats[i].rx_pause_transition =
407			be64_to_cpu(flowstats[i].rx_pause_transition);
408		priv->tx_priority_flowstats[i].tx_pause =
409			be64_to_cpu(flowstats[i].tx_pause);
410		priv->tx_priority_flowstats[i].tx_pause_duration =
411			be64_to_cpu(flowstats[i].tx_pause_duration);
412		priv->tx_priority_flowstats[i].tx_pause_transition =
413			be64_to_cpu(flowstats[i].tx_pause_transition);
414	}
415
416	/* if pfc is not in use, all priorities counters have the same value */
417	priv->rx_flowstats.rx_pause =
418		be64_to_cpu(flowstats[0].rx_pause);
419	priv->rx_flowstats.rx_pause_duration =
420		be64_to_cpu(flowstats[0].rx_pause_duration);
421	priv->rx_flowstats.rx_pause_transition =
422		be64_to_cpu(flowstats[0].rx_pause_transition);
423	priv->tx_flowstats.tx_pause =
424		be64_to_cpu(flowstats[0].tx_pause);
425	priv->tx_flowstats.tx_pause_duration =
426		be64_to_cpu(flowstats[0].tx_pause_duration);
427	priv->tx_flowstats.tx_pause_transition =
428		be64_to_cpu(flowstats[0].tx_pause_transition);
429
430	spin_unlock(&priv->stats_lock);
431
432out:
433	mlx4_free_cmd_mailbox(mdev->dev, mailbox);
434	return err;
435}
436
437int mlx4_en_get_vport_stats(struct mlx4_en_dev *mdev, u8 port)
438{
439	struct mlx4_en_priv *priv = netdev_priv(mdev->pndev[port]);
440	struct mlx4_counter tmp_vport_stats;
441	struct mlx4_en_vf_stats *vf_stats = &priv->vf_stats;
442	int err, i, counter_index;
443
444	spin_lock(&priv->stats_lock);
445
446	priv->pkstats.rx_packets = 0;
447	priv->pkstats.rx_bytes = 0;
448	priv->port_stats.rx_chksum_good = 0;
449	priv->port_stats.rx_chksum_none = 0;
450	for (i = 0; i < priv->rx_ring_num; i++) {
451		priv->pkstats.rx_packets += priv->rx_ring[i]->packets;
452		priv->pkstats.rx_bytes += priv->rx_ring[i]->bytes;
453		priv->port_stats.rx_chksum_good += priv->rx_ring[i]->csum_ok;
454		priv->port_stats.rx_chksum_none += priv->rx_ring[i]->csum_none;
455	}
456	priv->pkstats.tx_packets = 0;
457	priv->pkstats.tx_bytes = 0;
458	priv->port_stats.tx_chksum_offload = 0;
459	priv->port_stats.queue_stopped = 0;
460	priv->port_stats.wake_queue = 0;
461
462	for (i = 0; i < priv->tx_ring_num; i++) {
463		const struct mlx4_en_tx_ring *ring = priv->tx_ring[i];
464
465		priv->pkstats.tx_packets += ring->packets;
466		priv->pkstats.tx_bytes += ring->bytes;
467		priv->port_stats.tx_chksum_offload += ring->tx_csum;
468		priv->port_stats.queue_stopped     += ring->queue_stopped;
469		priv->port_stats.wake_queue        += ring->wake_queue;
470		priv->port_stats.oversized_packets += priv->tx_ring[i]->oversized_packets;
471	}
472
473	spin_unlock(&priv->stats_lock);
474
475	memset(&tmp_vport_stats, 0, sizeof(tmp_vport_stats));
476
477	counter_index = mlx4_get_default_counter_index(mdev->dev, port);
478	err = mlx4_get_counter_stats(mdev->dev, counter_index,
479				     &tmp_vport_stats, 0);
480
481	if (!err) {
482		spin_lock(&priv->stats_lock);
483
484		vf_stats->rx_bytes = be64_to_cpu(tmp_vport_stats.rx_bytes);
485		vf_stats->rx_frames = be64_to_cpu(tmp_vport_stats.rx_frames);
486		vf_stats->tx_bytes = be64_to_cpu(tmp_vport_stats.tx_bytes);
487		vf_stats->tx_frames = be64_to_cpu(tmp_vport_stats.tx_frames);
488
489		priv->pkstats.rx_packets = vf_stats->rx_frames;
490		priv->pkstats.rx_bytes = vf_stats->rx_bytes;
491		priv->pkstats.tx_packets = vf_stats->tx_frames;
492		priv->pkstats.tx_bytes = vf_stats->tx_bytes;
493
494		/* PF&VFs are not expected to report errors in ifconfig.
495		 * rx_errors will be reprted in PF's ethtool statistics,
496		 * see: mlx4_en_DUMP_ETH_STATS
497		 */
498		priv->pkstats.rx_errors = 0;
499		priv->pkstats.rx_dropped = 0;
500		priv->pkstats.tx_dropped = 0;
501		priv->pkstats.rx_multicast_packets = 0;
502
503		spin_unlock(&priv->stats_lock);
504	}
505
506	return err;
507}
508