diff options
Diffstat (limited to 'drivers/net/mlx5/mlx5_stats.c')
| -rw-r--r-- | drivers/net/mlx5/mlx5_stats.c | 246 |
1 files changed, 124 insertions, 122 deletions
diff --git a/drivers/net/mlx5/mlx5_stats.c b/drivers/net/mlx5/mlx5_stats.c index 378472a7..91f3d474 100644 --- a/drivers/net/mlx5/mlx5_stats.c +++ b/drivers/net/mlx5/mlx5_stats.c @@ -1,10 +1,13 @@ /* SPDX-License-Identifier: BSD-3-Clause * Copyright 2015 6WIND S.A. - * Copyright 2015 Mellanox. + * 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> @@ -19,6 +22,7 @@ struct mlx5_counter_ctrl { char dpdk_name[RTE_ETH_XSTATS_NAME_SIZE]; /* Name of the counter on the device table. */ char ctr_name[RTE_ETH_XSTATS_NAME_SIZE]; + uint32_t ib:1; /**< Nonzero for IB counters. */ }; static const struct mlx5_counter_ctrl mlx5_counters_init[] = { @@ -93,6 +97,7 @@ static const struct mlx5_counter_ctrl mlx5_counters_init[] = { { .dpdk_name = "rx_out_of_buffer", .ctr_name = "out_of_buffer", + .ib = 1, }, { .dpdk_name = "tx_packets_phy", @@ -117,39 +122,56 @@ static const unsigned int xstats_n = RTE_DIM(mlx5_counters_init); /** * Read device counters table. * - * @param priv - * Pointer to private structure. + * @param dev + * Pointer to Ethernet device. * @param[out] stats * Counters table output buffer. * * @return - * 0 on success and stats is filled, negative on error. + * 0 on success and stats is filled, negative errno value otherwise and + * rte_errno is set. */ static int -priv_read_dev_counters(struct priv *priv, uint64_t *stats) +mlx5_read_dev_counters(struct rte_eth_dev *dev, uint64_t *stats) { + struct 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; - if (priv_ifreq(priv, SIOCETHTOOL, &ifr) != 0) { - WARN("unable to read statistic values from device"); - return -1; + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr, 1); + 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_n; ++i) { - if (priv_is_ib_cntr(mlx5_counters_init[i].ctr_name)) - priv_get_cntr_sysfs(priv, - mlx5_counters_init[i].ctr_name, - &stats[i]); - else + if (mlx5_counters_init[i].ib) { + FILE *file; + MKSTR(path, "%s/ports/1/hw_counters/%s", + priv->ibdev_path, + mlx5_counters_init[i].ctr_name); + + file = fopen(path, "rb"); + if (file) { + int n = fscanf(file, "%" SCNu64, &stats[i]); + + fclose(file); + if (n != 1) + stats[i] = 0; + } + } else { stats[i] = (uint64_t) et_stats->data[xstats_ctrl->dev_table_idx[i]]; + } } return 0; } @@ -157,22 +179,26 @@ priv_read_dev_counters(struct priv *priv, uint64_t *stats) /** * Query the number of statistics provided by ETHTOOL. * - * @param priv - * Pointer to private structure. + * @param dev + * Pointer to Ethernet device. * * @return - * Number of statistics on success, -1 on error. + * Number of statistics on success, negative errno value otherwise and + * rte_errno is set. */ static int -priv_ethtool_get_stats_n(struct priv *priv) { +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; - if (priv_ifreq(priv, SIOCETHTOOL, &ifr) != 0) { - WARN("unable to query number of statistics"); - return -1; + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr, 1); + if (ret) { + DRV_LOG(WARNING, "port %u unable to query number of statistics", + dev->data->port_id); + return ret; } return drvinfo.n_stats; } @@ -180,12 +206,13 @@ priv_ethtool_get_stats_n(struct priv *priv) { /** * Init the structures to read device counters. * - * @param priv - * Pointer to private structure. + * @param dev + * Pointer to Ethernet device. */ void -priv_xstats_init(struct priv *priv) +mlx5_xstats_init(struct rte_eth_dev *dev) { + struct priv *priv = dev->data->dev_private; struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl; unsigned int i; unsigned int j; @@ -193,12 +220,15 @@ priv_xstats_init(struct priv *priv) struct ethtool_gstrings *strings = NULL; unsigned int dev_stats_n; unsigned int str_sz; + int ret; - dev_stats_n = priv_ethtool_get_stats_n(priv); - if (dev_stats_n < 1) { - WARN("no extended statistics available"); + 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; xstats_ctrl->stats_n = dev_stats_n; /* Allocate memory to grab stat names and values. */ str_sz = dev_stats_n * ETH_GSTRING_LEN; @@ -206,15 +236,18 @@ priv_xstats_init(struct priv *priv) rte_malloc("xstats_strings", str_sz + sizeof(struct ethtool_gstrings), 0); if (!strings) { - WARN("unable to allocate memory for xstats"); + 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; - if (priv_ifreq(priv, SIOCETHTOOL, &ifr) != 0) { - WARN("unable to get statistic names"); + ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr, 1); + if (ret) { + DRV_LOG(WARNING, "port %u unable to get statistic names", + dev->data->port_id); goto free; } for (j = 0; j != xstats_n; ++j) @@ -232,68 +265,67 @@ priv_xstats_init(struct priv *priv) } } for (j = 0; j != xstats_n; ++j) { - if (priv_is_ib_cntr(mlx5_counters_init[j].ctr_name)) + if (mlx5_counters_init[j].ib) continue; if (xstats_ctrl->dev_table_idx[j] >= dev_stats_n) { - WARN("counter \"%s\" is not recognized", - mlx5_counters_init[j].dpdk_name); + DRV_LOG(WARNING, + "port %u counter \"%s\" is not recognized", + dev->data->port_id, + mlx5_counters_init[j].dpdk_name); goto free; } } /* Copy to base at first time. */ assert(xstats_n <= MLX5_MAX_XSTATS); - priv_read_dev_counters(priv, xstats_ctrl->base); + 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)); free: rte_free(strings); } /** - * Get device extended statistics. + * DPDK callback to get extended device statistics. * - * @param priv - * Pointer to private structure. + * @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. + * negative on error and rte_errno is set. */ -static int -priv_xstats_get(struct priv *priv, struct rte_eth_xstat *stats) +int +mlx5_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *stats, + unsigned int n) { - struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl; + struct priv *priv = dev->data->dev_private; unsigned int i; - unsigned int n = xstats_n; uint64_t counters[n]; - if (priv_read_dev_counters(priv, counters) < 0) - return -1; - for (i = 0; i != xstats_n; ++i) { - stats[i].id = i; - stats[i].value = (counters[i] - xstats_ctrl->base[i]); - } - return n; -} - -/** - * Reset device extended statistics. - * - * @param priv - * Pointer to private structure. - */ -static void -priv_xstats_reset(struct priv *priv) -{ - struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl; - unsigned int i; - unsigned int n = xstats_n; - uint64_t counters[n]; + if (n >= xstats_n && stats) { + struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl; + int stats_n; + int ret; - if (priv_read_dev_counters(priv, counters) < 0) - return; - for (i = 0; i != n; ++i) - xstats_ctrl->base[i] = counters[i]; + stats_n = mlx5_ethtool_get_stats_n(dev); + if (stats_n < 0) + return stats_n; + if (xstats_ctrl->stats_n != stats_n) + mlx5_xstats_init(dev); + ret = mlx5_read_dev_counters(dev, counters); + if (ret) + return ret; + for (i = 0; i != xstats_n; ++i) { + stats[i].id = i; + stats[i].value = (counters[i] - xstats_ctrl->base[i]); + } + } + return xstats_n; } /** @@ -303,6 +335,10 @@ priv_xstats_reset(struct priv *priv) * 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) @@ -312,7 +348,6 @@ mlx5_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) unsigned int i; unsigned int idx; - priv_lock(priv); /* Add software counters. */ for (i = 0; (i != priv->rxqs_n); ++i) { struct mlx5_rxq_data *rxq = (*priv->rxqs)[i]; @@ -358,7 +393,6 @@ mlx5_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) /* FIXME: retrieve and add hardware counters. */ #endif *stats = tmp; - priv_unlock(priv); return 0; } @@ -375,7 +409,6 @@ mlx5_stats_reset(struct rte_eth_dev *dev) unsigned int i; unsigned int idx; - priv_lock(priv); for (i = 0; (i != priv->rxqs_n); ++i) { if ((*priv->rxqs)[i] == NULL) continue; @@ -393,45 +426,6 @@ mlx5_stats_reset(struct rte_eth_dev *dev) #ifndef MLX5_PMD_SOFT_COUNTERS /* FIXME: reset hardware counters. */ #endif - priv_unlock(priv); -} - -/** - * DPDK callback to get extended device statistics. - * - * @param dev - * Pointer to Ethernet device structure. - * @param[out] stats - * Stats table output buffer. - * @param n - * The size of the stats table. - * - * @return - * Number of xstats on success, negative on failure. - */ -int -mlx5_xstats_get(struct rte_eth_dev *dev, - struct rte_eth_xstat *stats, unsigned int n) -{ - struct priv *priv = dev->data->dev_private; - int ret = xstats_n; - - if (n >= xstats_n && stats) { - struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl; - int stats_n; - - priv_lock(priv); - stats_n = priv_ethtool_get_stats_n(priv); - if (stats_n < 0) { - priv_unlock(priv); - return -1; - } - if (xstats_ctrl->stats_n != stats_n) - priv_xstats_init(priv); - ret = priv_xstats_get(priv, stats); - priv_unlock(priv); - } - return ret; } /** @@ -446,16 +440,27 @@ mlx5_xstats_reset(struct rte_eth_dev *dev) struct 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_n; + uint64_t counters[n]; + int ret; - priv_lock(priv); - stats_n = priv_ethtool_get_stats_n(priv); - if (stats_n < 0) - goto unlock; + 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) - priv_xstats_init(priv); - priv_xstats_reset(priv); -unlock: - priv_unlock(priv); + mlx5_xstats_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]; } /** @@ -472,21 +477,18 @@ unlock: * Number of xstats names. */ int -mlx5_xstats_get_names(struct rte_eth_dev *dev, - struct rte_eth_xstat_name *xstats_names, unsigned int n) +mlx5_xstats_get_names(struct rte_eth_dev *dev __rte_unused, + struct rte_eth_xstat_name *xstats_names, unsigned int n) { - struct priv *priv = dev->data->dev_private; unsigned int i; if (n >= xstats_n && xstats_names) { - priv_lock(priv); for (i = 0; i != xstats_n; ++i) { strncpy(xstats_names[i].name, mlx5_counters_init[i].dpdk_name, RTE_ETH_XSTATS_NAME_SIZE); xstats_names[i].name[RTE_ETH_XSTATS_NAME_SIZE - 1] = 0; } - priv_unlock(priv); } return xstats_n; } |