net/mlx5: eliminate dependency on Linux in shared header
[dpdk.git] / drivers / net / mlx5 / linux / mlx5_ethdev_os.c
index 6b8a151..e79d576 100644 (file)
@@ -178,7 +178,7 @@ mlx5_get_ifname(const struct rte_eth_dev *dev, char (*ifname)[IF_NAMESIZE])
  * @return
  *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
-int
+static int
 mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr)
 {
        int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
@@ -258,7 +258,7 @@ mlx5_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
  * @return
  *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
-int
+static int
 mlx5_set_flags(struct rte_eth_dev *dev, unsigned int keep, unsigned int flags)
 {
        struct ifreq request;
@@ -1187,3 +1187,313 @@ int mlx5_get_module_eeprom(struct rte_eth_dev *dev,
        mlx5_free(eeprom);
        return ret;
 }
+
+/**
+ * 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.
+ */
+int
+mlx5_os_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].dev) {
+                       ret = mlx5_os_read_dev_stat(priv,
+                                           xstats_ctrl->info[i].ctr_name,
+                                           &stats[i]);
+                       /* return last xstats counter if fail to read. */
+                       if (ret == 0)
+                               xstats_ctrl->xstats[i] = stats[i];
+                       else
+                               stats[i] = xstats_ctrl->xstats[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.
+ */
+int
+mlx5_os_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;
+}
+
+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",
+               .dev = 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);
+
+/**
+ * Init the structures to read device counters.
+ *
+ * @param dev
+ *   Pointer to Ethernet device.
+ */
+void
+mlx5_os_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_os_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 *)
+                 mlx5_malloc(0, str_sz + sizeof(struct ethtool_gstrings), 0,
+                             SOCKET_ID_ANY);
+       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 dev counters. */
+       for (i = 0; i != xstats_n; ++i) {
+               if (mlx5_counters_init[i].dev) {
+                       unsigned int idx = xstats_ctrl->mlx5_stats_n++;
+
+                       xstats_ctrl->info[idx] = mlx5_counters_init[i];
+                       xstats_ctrl->hw_stats[idx] = 0;
+               }
+       }
+       MLX5_ASSERT(xstats_ctrl->mlx5_stats_n <= MLX5_MAX_XSTATS);
+       xstats_ctrl->stats_n = dev_stats_n;
+       /* Copy to base at first time. */
+       ret = mlx5_os_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_os_read_dev_stat(priv, "out_of_buffer", &stats_ctrl->imissed_base);
+       stats_ctrl->imissed = 0;
+free:
+       mlx5_free(strings);
+}
+
+/**
+ * Get MAC address by querying netdevice.
+ *
+ * @param[in] dev
+ *   Pointer to Ethernet device.
+ * @param[out] mac
+ *   MAC address output buffer.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_get_mac(struct rte_eth_dev *dev, uint8_t (*mac)[RTE_ETHER_ADDR_LEN])
+{
+       struct ifreq request;
+       int ret;
+
+       ret = mlx5_ifreq(dev, SIOCGIFHWADDR, &request);
+       if (ret)
+               return ret;
+       memcpy(mac, request.ifr_hwaddr.sa_data, RTE_ETHER_ADDR_LEN);
+       return 0;
+}
+