summaryrefslogtreecommitdiff
path: root/drivers/net/mlx5/mlx5_stats.c
blob: 5af199d0d5e487d2c22e489dc9434f01bf23adf1 (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
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright 2015 6WIND S.A.
 * Copyright 2015 Mellanox Technologies, Ltd
 */

#include <inttypes.h>
#include <linux/sockios.h>
#include <linux/ethtool.h>
#include <stdint.h>
#include <stdio.h>

#include <rte_ethdev_driver.h>
#include <rte_common.h>
#include <rte_malloc.h>

#include "mlx5.h"
#include "mlx5_rxtx.h"
#include "mlx5_defs.h"

static const struct mlx5_counter_ctrl mlx5_counters_init[] = {
	{
		.dpdk_name = "rx_port_unicast_bytes",
		.ctr_name = "rx_vport_unicast_bytes",
	},
	{
		.dpdk_name = "rx_port_multicast_bytes",
		.ctr_name = "rx_vport_multicast_bytes",
	},
	{
		.dpdk_name = "rx_port_broadcast_bytes",
		.ctr_name = "rx_vport_broadcast_bytes",
	},
	{
		.dpdk_name = "rx_port_unicast_packets",
		.ctr_name = "rx_vport_unicast_packets",
	},
	{
		.dpdk_name = "rx_port_multicast_packets",
		.ctr_name = "rx_vport_multicast_packets",
	},
	{
		.dpdk_name = "rx_port_broadcast_packets",
		.ctr_name = "rx_vport_broadcast_packets",
	},
	{
		.dpdk_name = "tx_port_unicast_bytes",
		.ctr_name = "tx_vport_unicast_bytes",
	},
	{
		.dpdk_name = "tx_port_multicast_bytes",
		.ctr_name = "tx_vport_multicast_bytes",
	},
	{
		.dpdk_name = "tx_port_broadcast_bytes",
		.ctr_name = "tx_vport_broadcast_bytes",
	},
	{
		.dpdk_name = "tx_port_unicast_packets",
		.ctr_name = "tx_vport_unicast_packets",
	},
	{
		.dpdk_name = "tx_port_multicast_packets",
		.ctr_name = "tx_vport_multicast_packets",
	},
	{
		.dpdk_name = "tx_port_broadcast_packets",
		.ctr_name = "tx_vport_broadcast_packets",
	},
	{
		.dpdk_name = "rx_wqe_err",
		.ctr_name = "rx_wqe_err",
	},
	{
		.dpdk_name = "rx_crc_errors_phy",
		.ctr_name = "rx_crc_errors_phy",
	},
	{
		.dpdk_name = "rx_in_range_len_errors_phy",
		.ctr_name = "rx_in_range_len_errors_phy",
	},
	{
		.dpdk_name = "rx_symbol_err_phy",
		.ctr_name = "rx_symbol_err_phy",
	},
	{
		.dpdk_name = "tx_errors_phy",
		.ctr_name = "tx_errors_phy",
	},
	{
		.dpdk_name = "rx_out_of_buffer",
		.ctr_name = "out_of_buffer",
		.ib = 1,
	},
	{
		.dpdk_name = "tx_packets_phy",
		.ctr_name = "tx_packets_phy",
	},
	{
		.dpdk_name = "rx_packets_phy",
		.ctr_name = "rx_packets_phy",
	},
	{
		.dpdk_name = "tx_discards_phy",
		.ctr_name = "tx_discards_phy",
	},
	{
		.dpdk_name = "rx_discards_phy",
		.ctr_name = "rx_discards_phy",
	},
	{
		.dpdk_name = "tx_bytes_phy",
		.ctr_name = "tx_bytes_phy",
	},
	{
		.dpdk_name = "rx_bytes_phy",
		.ctr_name = "rx_bytes_phy",
	},
	/* Representor only */
	{
		.dpdk_name = "rx_packets",
		.ctr_name = "vport_rx_packets",
	},
	{
		.dpdk_name = "rx_bytes",
		.ctr_name = "vport_rx_bytes",
	},
	{
		.dpdk_name = "tx_packets",
		.ctr_name = "vport_tx_packets",
	},
	{
		.dpdk_name = "tx_bytes",
		.ctr_name = "vport_tx_bytes",
	},
};

static const unsigned int xstats_n = RTE_DIM(mlx5_counters_init);

static inline void
mlx5_read_ib_stat(struct mlx5_priv *priv, const char *ctr_name, uint64_t *stat)
{
	FILE *file;
	if (priv->sh) {
		MKSTR(path, "%s/ports/%d/hw_counters/%s",
			  priv->sh->ibdev_path,
			  priv->ibv_port,
			  ctr_name);

		file = fopen(path, "rb");
		if (file) {
			int n = fscanf(file, "%" SCNu64, stat);

			fclose(file);
			if (n == 1)
				return;
		}
	}
	*stat = 0;
}

/**
 * Read device counters table.
 *
 * @param dev
 *   Pointer to Ethernet device.
 * @param[out] stats
 *   Counters table output buffer.
 *
 * @return
 *   0 on success and stats is filled, negative errno value otherwise and
 *   rte_errno is set.
 */
static int
mlx5_read_dev_counters(struct rte_eth_dev *dev, uint64_t *stats)
{
	struct mlx5_priv *priv = dev->data->dev_private;
	struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl;
	unsigned int i;
	struct ifreq ifr;
	unsigned int stats_sz = xstats_ctrl->stats_n * sizeof(uint64_t);
	unsigned char et_stat_buf[sizeof(struct ethtool_stats) + stats_sz];
	struct ethtool_stats *et_stats = (struct ethtool_stats *)et_stat_buf;
	int ret;

	et_stats->cmd = ETHTOOL_GSTATS;
	et_stats->n_stats = xstats_ctrl->stats_n;
	ifr.ifr_data = (caddr_t)et_stats;
	ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
	if (ret) {
		DRV_LOG(WARNING,
			"port %u unable to read statistic values from device",
			dev->data->port_id);
		return ret;
	}
	for (i = 0; i != xstats_ctrl->mlx5_stats_n; ++i) {
		if (xstats_ctrl->info[i].ib) {
			mlx5_read_ib_stat(priv, xstats_ctrl->info[i].ctr_name,
					  &stats[i]);
		} else {
			stats[i] = (uint64_t)
				et_stats->data[xstats_ctrl->dev_table_idx[i]];
		}
	}
	return 0;
}

/**
 * Query the number of statistics provided by ETHTOOL.
 *
 * @param dev
 *   Pointer to Ethernet device.
 *
 * @return
 *   Number of statistics on success, negative errno value otherwise and
 *   rte_errno is set.
 */
static int
mlx5_ethtool_get_stats_n(struct rte_eth_dev *dev) {
	struct ethtool_drvinfo drvinfo;
	struct ifreq ifr;
	int ret;

	drvinfo.cmd = ETHTOOL_GDRVINFO;
	ifr.ifr_data = (caddr_t)&drvinfo;
	ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
	if (ret) {
		DRV_LOG(WARNING, "port %u unable to query number of statistics",
			dev->data->port_id);
		return ret;
	}
	return drvinfo.n_stats;
}

/**
 * Init the structures to read device counters.
 *
 * @param dev
 *   Pointer to Ethernet device.
 */
void
mlx5_stats_init(struct rte_eth_dev *dev)
{
	struct mlx5_priv *priv = dev->data->dev_private;
	struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl;
	struct mlx5_stats_ctrl *stats_ctrl = &priv->stats_ctrl;
	unsigned int i;
	unsigned int j;
	struct ifreq ifr;
	struct ethtool_gstrings *strings = NULL;
	unsigned int dev_stats_n;
	unsigned int str_sz;
	int ret;

	/* So that it won't aggregate for each init. */
	xstats_ctrl->mlx5_stats_n = 0;
	ret = mlx5_ethtool_get_stats_n(dev);
	if (ret < 0) {
		DRV_LOG(WARNING, "port %u no extended statistics available",
			dev->data->port_id);
		return;
	}
	dev_stats_n = ret;
	/* Allocate memory to grab stat names and values. */
	str_sz = dev_stats_n * ETH_GSTRING_LEN;
	strings = (struct ethtool_gstrings *)
		  rte_malloc("xstats_strings",
			     str_sz + sizeof(struct ethtool_gstrings), 0);
	if (!strings) {
		DRV_LOG(WARNING, "port %u unable to allocate memory for xstats",
		     dev->data->port_id);
		return;
	}
	strings->cmd = ETHTOOL_GSTRINGS;
	strings->string_set = ETH_SS_STATS;
	strings->len = dev_stats_n;
	ifr.ifr_data = (caddr_t)strings;
	ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
	if (ret) {
		DRV_LOG(WARNING, "port %u unable to get statistic names",
			dev->data->port_id);
		goto free;
	}
	for (i = 0; i != dev_stats_n; ++i) {
		const char *curr_string = (const char *)
			&strings->data[i * ETH_GSTRING_LEN];

		for (j = 0; j != xstats_n; ++j) {
			if (!strcmp(mlx5_counters_init[j].ctr_name,
				    curr_string)) {
				unsigned int idx = xstats_ctrl->mlx5_stats_n++;

				xstats_ctrl->dev_table_idx[idx] = i;
				xstats_ctrl->info[idx] = mlx5_counters_init[j];
				break;
			}
		}
	}
	/* Add IB counters. */
	for (i = 0; i != xstats_n; ++i) {
		if (mlx5_counters_init[i].ib) {
			unsigned int idx = xstats_ctrl->mlx5_stats_n++;

			xstats_ctrl->info[idx] = mlx5_counters_init[i];
		}
	}
	assert(xstats_ctrl->mlx5_stats_n <= MLX5_MAX_XSTATS);
	xstats_ctrl->stats_n = dev_stats_n;
	/* Copy to base at first time. */
	ret = mlx5_read_dev_counters(dev, xstats_ctrl->base);
	if (ret)
		DRV_LOG(ERR, "port %u cannot read device counters: %s",
			dev->data->port_id, strerror(rte_errno));
	mlx5_read_ib_stat(priv, "out_of_buffer", &stats_ctrl->imissed_base);
free:
	rte_free(strings);
}

/**
 * DPDK callback to get extended device statistics.
 *
 * @param dev
 *   Pointer to Ethernet device.
 * @param[out] stats
 *   Pointer to rte extended stats table.
 * @param n
 *   The size of the stats table.
 *
 * @return
 *   Number of extended stats on success and stats is filled,
 *   negative on error and rte_errno is set.
 */
int
mlx5_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *stats,
		unsigned int n)
{
	struct mlx5_priv *priv = dev->data->dev_private;
	unsigned int i;
	uint64_t counters[n];
	struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl;
	uint16_t mlx5_stats_n = xstats_ctrl->mlx5_stats_n;

	if (n >= mlx5_stats_n && stats) {
		int stats_n;
		int ret;

		stats_n = mlx5_ethtool_get_stats_n(dev);
		if (stats_n < 0)
			return stats_n;
		if (xstats_ctrl->stats_n != stats_n)
			mlx5_stats_init(dev);
		ret = mlx5_read_dev_counters(dev, counters);
		if (ret)
			return ret;
		for (i = 0; i != mlx5_stats_n; ++i) {
			stats[i].id = i;
			stats[i].value = (counters[i] - xstats_ctrl->base[i]);
		}
	}
	return mlx5_stats_n;
}

/**
 * DPDK callback to get device statistics.
 *
 * @param dev
 *   Pointer to Ethernet device structure.
 * @param[out] stats
 *   Stats structure output buffer.
 *
 * @return
 *   0 on success and stats is filled, negative errno value otherwise and
 *   rte_errno is set.
 */
int
mlx5_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
{
	struct mlx5_priv *priv = dev->data->dev_private;
	struct rte_eth_stats tmp;
	unsigned int i;
	unsigned int idx;

	memset(&tmp, 0, sizeof(tmp));
	/* Add software counters. */
	for (i = 0; (i != priv->rxqs_n); ++i) {
		struct mlx5_rxq_data *rxq = (*priv->rxqs)[i];

		if (rxq == NULL)
			continue;
		idx = rxq->stats.idx;
		if (idx < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
#ifdef MLX5_PMD_SOFT_COUNTERS
			tmp.q_ipackets[idx] += rxq->stats.ipackets;
			tmp.q_ibytes[idx] += rxq->stats.ibytes;
#endif
			tmp.q_errors[idx] += (rxq->stats.idropped +
					      rxq->stats.rx_nombuf);
		}
#ifdef MLX5_PMD_SOFT_COUNTERS
		tmp.ipackets += rxq->stats.ipackets;
		tmp.ibytes += rxq->stats.ibytes;
#endif
		tmp.ierrors += rxq->stats.idropped;
		tmp.rx_nombuf += rxq->stats.rx_nombuf;
	}
	for (i = 0; (i != priv->txqs_n); ++i) {
		struct mlx5_txq_data *txq = (*priv->txqs)[i];

		if (txq == NULL)
			continue;
		idx = txq->stats.idx;
		if (idx < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
#ifdef MLX5_PMD_SOFT_COUNTERS
			tmp.q_opackets[idx] += txq->stats.opackets;
			tmp.q_obytes[idx] += txq->stats.obytes;
#endif
			tmp.q_errors[idx] += txq->stats.oerrors;
		}
#ifdef MLX5_PMD_SOFT_COUNTERS
		tmp.opackets += txq->stats.opackets;
		tmp.obytes += txq->stats.obytes;
#endif
		tmp.oerrors += txq->stats.oerrors;
	}
	mlx5_read_ib_stat(priv, "out_of_buffer", &tmp.imissed);
	tmp.imissed -= priv->stats_ctrl.imissed_base;
#ifndef MLX5_PMD_SOFT_COUNTERS
	/* FIXME: retrieve and add hardware counters. */
#endif
	*stats = tmp;
	return 0;
}

/**
 * DPDK callback to clear device statistics.
 *
 * @param dev
 *   Pointer to Ethernet device structure.
 */
void
mlx5_stats_reset(struct rte_eth_dev *dev)
{
	struct mlx5_priv *priv = dev->data->dev_private;
	struct mlx5_stats_ctrl *stats_ctrl = &priv->stats_ctrl;
	unsigned int i;
	unsigned int idx;

	for (i = 0; (i != priv->rxqs_n); ++i) {
		if ((*priv->rxqs)[i] == NULL)
			continue;
		idx = (*priv->rxqs)[i]->stats.idx;
		(*priv->rxqs)[i]->stats =
			(struct mlx5_rxq_stats){ .idx = idx };
	}
	for (i = 0; (i != priv->txqs_n); ++i) {
		if ((*priv->txqs)[i] == NULL)
			continue;
		idx = (*priv->txqs)[i]->stats.idx;
		(*priv->txqs)[i]->stats =
			(struct mlx5_txq_stats){ .idx = idx };
	}
	mlx5_read_ib_stat(priv, "out_of_buffer", &stats_ctrl->imissed_base);
#ifndef MLX5_PMD_SOFT_COUNTERS
	/* FIXME: reset hardware counters. */
#endif
}

/**
 * DPDK callback to clear device extended statistics.
 *
 * @param dev
 *   Pointer to Ethernet device structure.
 */
void
mlx5_xstats_reset(struct rte_eth_dev *dev)
{
	struct mlx5_priv *priv = dev->data->dev_private;
	struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl;
	int stats_n;
	unsigned int i;
	unsigned int n = xstats_ctrl->mlx5_stats_n;
	uint64_t counters[n];
	int ret;

	stats_n = mlx5_ethtool_get_stats_n(dev);
	if (stats_n < 0) {
		DRV_LOG(ERR, "port %u cannot get stats: %s", dev->data->port_id,
			strerror(-stats_n));
		return;
	}
	if (xstats_ctrl->stats_n != stats_n)
		mlx5_stats_init(dev);
	ret = mlx5_read_dev_counters(dev, counters);
	if (ret) {
		DRV_LOG(ERR, "port %u cannot read device counters: %s",
			dev->data->port_id, strerror(rte_errno));
		return;
	}
	for (i = 0; i != n; ++i)
		xstats_ctrl->base[i] = counters[i];
}

/**
 * DPDK callback to retrieve names of extended device statistics
 *
 * @param dev
 *   Pointer to Ethernet device structure.
 * @param[out] xstats_names
 *   Buffer to insert names into.
 * @param n
 *   Number of names.
 *
 * @return
 *   Number of xstats names.
 */
int
mlx5_xstats_get_names(struct rte_eth_dev *dev __rte_unused,
		      struct rte_eth_xstat_name *xstats_names, unsigned int n)
{
	unsigned int i;
	struct mlx5_priv *priv = dev->data->dev_private;
	struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl;
	unsigned int mlx5_xstats_n = xstats_ctrl->mlx5_stats_n;

	if (n >= mlx5_xstats_n && xstats_names) {
		for (i = 0; i != mlx5_xstats_n; ++i) {
			strncpy(xstats_names[i].name,
				xstats_ctrl->info[i].dpdk_name,
				RTE_ETH_XSTATS_NAME_SIZE);
			xstats_names[i].name[RTE_ETH_XSTATS_NAME_SIZE - 1] = 0;
		}
	}
	return mlx5_xstats_n;
}