diff options
Diffstat (limited to 'drivers/net/mlx5/mlx5_stats.c')
| -rw-r--r-- | drivers/net/mlx5/mlx5_stats.c | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/drivers/net/mlx5/mlx5_stats.c b/drivers/net/mlx5/mlx5_stats.c index f2b5781a..703f48c3 100644 --- a/drivers/net/mlx5/mlx5_stats.c +++ b/drivers/net/mlx5/mlx5_stats.c @@ -31,11 +31,16 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +#include <linux/sockios.h> +#include <linux/ethtool.h> + /* DPDK headers don't like -pedantic. */ #ifdef PEDANTIC #pragma GCC diagnostic ignored "-Wpedantic" #endif #include <rte_ethdev.h> +#include <rte_common.h> +#include <rte_malloc.h> #ifdef PEDANTIC #pragma GCC diagnostic error "-Wpedantic" #endif @@ -44,6 +49,274 @@ #include "mlx5_rxtx.h" #include "mlx5_defs.h" +struct mlx5_counter_ctrl { + /* Name of the counter. */ + char dpdk_name[RTE_ETH_XSTATS_NAME_SIZE]; + /* Name of the counter on the device table. */ + char ctr_name[RTE_ETH_XSTATS_NAME_SIZE]; +}; + +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", + }, +}; + +static const unsigned int xstats_n = RTE_DIM(mlx5_counters_init); + +/** + * Read device counters table. + * + * @param priv + * Pointer to private structure. + * @param[out] stats + * Counters table output buffer. + * + * @return + * 0 on success and stats is filled, negative on error. + */ +static int +priv_read_dev_counters(struct priv *priv, uint64_t *stats) +{ + 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)) + + sizeof(struct ethtool_stats); + struct ethtool_stats et_stats[(stats_sz + ( + sizeof(struct ethtool_stats) - 1)) / + sizeof(struct ethtool_stats)]; + + 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; + } + 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 + stats[i] = (uint64_t) + et_stats->data[xstats_ctrl->dev_table_idx[i]]; + } + return 0; +} + +/** + * Query the number of statistics provided by ETHTOOL. + * + * @param priv + * Pointer to private structure. + * + * @return + * Number of statistics on success, -1 on error. + */ +static int +priv_ethtool_get_stats_n(struct priv *priv) { + struct ethtool_drvinfo drvinfo; + struct ifreq ifr; + + 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; + } + return drvinfo.n_stats; +} + +/** + * Init the structures to read device counters. + * + * @param priv + * Pointer to private structure. + */ +void +priv_xstats_init(struct priv *priv) +{ + struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl; + unsigned int i; + unsigned int j; + struct ifreq ifr; + struct ethtool_gstrings *strings = NULL; + unsigned int dev_stats_n; + unsigned int str_sz; + + dev_stats_n = priv_ethtool_get_stats_n(priv); + if (dev_stats_n < 1) { + WARN("no extended statistics available"); + return; + } + xstats_ctrl->stats_n = dev_stats_n; + /* 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) { + WARN("unable to allocate memory for xstats"); + 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"); + goto free; + } + for (j = 0; j != xstats_n; ++j) + xstats_ctrl->dev_table_idx[j] = dev_stats_n; + 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)) { + xstats_ctrl->dev_table_idx[j] = i; + break; + } + } + } + for (j = 0; j != xstats_n; ++j) { + if (priv_is_ib_cntr(mlx5_counters_init[j].ctr_name)) + continue; + if (xstats_ctrl->dev_table_idx[j] >= dev_stats_n) { + WARN("counter \"%s\" is not recognized", + 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); +free: + rte_free(strings); +} + +/** + * Get device extended statistics. + * + * @param priv + * Pointer to private structure. + * @param[out] stats + * Pointer to rte extended stats table. + * + * @return + * Number of extended stats on success and stats is filled, + * negative on error. + */ +static int +priv_xstats_get(struct priv *priv, struct rte_eth_xstat *stats) +{ + struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl; + 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 (priv_read_dev_counters(priv, counters) < 0) + return; + for (i = 0; i != n; ++i) + xstats_ctrl->base[i] = counters[i]; +} + /** * DPDK callback to get device statistics. * @@ -142,3 +415,95 @@ mlx5_stats_reset(struct rte_eth_dev *dev) #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 = mlx5_get_priv(dev); + 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) + return -1; + if (xstats_ctrl->stats_n != stats_n) + priv_xstats_init(priv); + ret = priv_xstats_get(priv, stats); + priv_unlock(priv); + } + return ret; +} + +/** + * DPDK callback to clear device extended statistics. + * + * @param dev + * Pointer to Ethernet device structure. + */ +void +mlx5_xstats_reset(struct rte_eth_dev *dev) +{ + struct priv *priv = mlx5_get_priv(dev); + 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) + return; + if (xstats_ctrl->stats_n != stats_n) + priv_xstats_init(priv); + priv_xstats_reset(priv); + priv_unlock(priv); +} + +/** + * 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, + struct rte_eth_xstat_name *xstats_names, unsigned int n) +{ + struct priv *priv = mlx5_get_priv(dev); + 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; +} |