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authorShahaf Shuler <shahafs@mellanox.com>2017-01-17 16:37:08 +0200
committerFerruh Yigit <ferruh.yigit@intel.com>2017-01-17 20:13:13 +0100
commita4193ae3bc4fcaf6a81b472563466946771a5f8e (patch)
tree403a4722d591e72cb83837cd786390e4d9ca2d36 /drivers/net/mlx5/mlx5_stats.c
parentd2b84bdefc64999cf77a321207b1cda3edeef398 (diff)
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net/mlx5: support extended statistics
Implement extended statistics callbacks. Suggested-by: Hanoch Haim <hhaim@cisco.com> Signed-off-by: Shahaf Shuler <shahafs@mellanox.com> Signed-off-by: Elad Persiko <eladpe@mellanox.com> Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Diffstat (limited to 'drivers/net/mlx5/mlx5_stats.c')
-rw-r--r--drivers/net/mlx5/mlx5_stats.c328
1 files changed, 328 insertions, 0 deletions
diff --git a/drivers/net/mlx5/mlx5_stats.c b/drivers/net/mlx5/mlx5_stats.c
index f2b5781..20c957e 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 +49,252 @@
#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",
+ },
+};
+
+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)
+ stats[i] = (uint64_t)
+ et_stats->data[xstats_ctrl->dev_table_idx[i]];
+ return 0;
+}
+
+/**
+ * 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;
+ char ifname[IF_NAMESIZE];
+ struct ifreq ifr;
+ struct ethtool_drvinfo drvinfo;
+ struct ethtool_gstrings *strings = NULL;
+ unsigned int dev_stats_n;
+ unsigned int str_sz;
+
+ if (priv_get_ifname(priv, &ifname)) {
+ WARN("unable to get interface name");
+ return;
+ }
+ /* How many statistics are available. */
+ drvinfo.cmd = ETHTOOL_GDRVINFO;
+ ifr.ifr_data = (caddr_t)&drvinfo;
+ if (priv_ifreq(priv, SIOCETHTOOL, &ifr) != 0) {
+ WARN("unable to get driver info");
+ return;
+ }
+ dev_stats_n = drvinfo.n_stats;
+ 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 (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 +393,80 @@ 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) {
+ priv_lock(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);
+
+ priv_lock(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;
+}