New upstream version 17.11.3
[deb_dpdk.git] / drivers / net / mlx5 / mlx5_trigger.c
index d682ea2..214543f 100644 (file)
 #include "mlx5_rxtx.h"
 #include "mlx5_utils.h"
 
+/**
+ * Stop traffic on Tx queues.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
 static void
-priv_txq_stop(struct priv *priv)
+mlx5_txq_stop(struct rte_eth_dev *dev)
 {
+       struct priv *priv = dev->data->dev_private;
        unsigned int i;
 
        for (i = 0; i != priv->txqs_n; ++i)
-               mlx5_priv_txq_release(priv, i);
+               mlx5_txq_release(dev, i);
 }
 
+/**
+ * Start traffic on Tx queues.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
 static int
-priv_txq_start(struct priv *priv)
+mlx5_txq_start(struct rte_eth_dev *dev)
 {
+       struct priv *priv = dev->data->dev_private;
        unsigned int i;
-       int ret = 0;
+       int ret;
 
        /* Add memory regions to Tx queues. */
        for (i = 0; i != priv->txqs_n; ++i) {
                unsigned int idx = 0;
                struct mlx5_mr *mr;
-               struct mlx5_txq_ctrl *txq_ctrl = mlx5_priv_txq_get(priv, i);
+               struct mlx5_txq_ctrl *txq_ctrl = mlx5_txq_get(dev, i);
 
                if (!txq_ctrl)
                        continue;
                LIST_FOREACH(mr, &priv->mr, next) {
-                       priv_txq_mp2mr_reg(priv, &txq_ctrl->txq, mr->mp, idx++);
+                       mlx5_txq_mp2mr_reg(&txq_ctrl->txq, mr->mp, idx++);
                        if (idx == MLX5_PMD_TX_MP_CACHE)
                                break;
                }
                txq_alloc_elts(txq_ctrl);
-               txq_ctrl->ibv = mlx5_priv_txq_ibv_new(priv, i);
+               txq_ctrl->ibv = mlx5_txq_ibv_new(dev, i);
                if (!txq_ctrl->ibv) {
-                       ret = ENOMEM;
+                       rte_errno = ENOMEM;
                        goto error;
                }
        }
-       return -ret;
+       ret = mlx5_tx_uar_remap(dev, priv->ctx->cmd_fd);
+       if (ret)
+               goto error;
+       return 0;
 error:
-       priv_txq_stop(priv);
-       return -ret;
+       ret = rte_errno; /* Save rte_errno before cleanup. */
+       mlx5_txq_stop(dev);
+       rte_errno = ret; /* Restore rte_errno. */
+       return -rte_errno;
 }
 
+/**
+ * Stop traffic on Rx queues.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ */
 static void
-priv_rxq_stop(struct priv *priv)
+mlx5_rxq_stop(struct rte_eth_dev *dev)
 {
+       struct priv *priv = dev->data->dev_private;
        unsigned int i;
 
        for (i = 0; i != priv->rxqs_n; ++i)
-               mlx5_priv_rxq_release(priv, i);
+               mlx5_rxq_release(dev, i);
 }
 
+/**
+ * Start traffic on Rx queues.
+ *
+ * @param dev
+ *   Pointer to Ethernet device structure.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
+ */
 static int
-priv_rxq_start(struct priv *priv)
+mlx5_rxq_start(struct rte_eth_dev *dev)
 {
+       struct priv *priv = dev->data->dev_private;
        unsigned int i;
        int ret = 0;
 
        for (i = 0; i != priv->rxqs_n; ++i) {
-               struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_priv_rxq_get(priv, i);
+               struct mlx5_rxq_ctrl *rxq_ctrl = mlx5_rxq_get(dev, i);
 
                if (!rxq_ctrl)
                        continue;
                ret = rxq_alloc_elts(rxq_ctrl);
                if (ret)
                        goto error;
-               rxq_ctrl->ibv = mlx5_priv_rxq_ibv_new(priv, i);
-               if (!rxq_ctrl->ibv) {
-                       ret = ENOMEM;
+               rxq_ctrl->ibv = mlx5_rxq_ibv_new(dev, i);
+               if (!rxq_ctrl->ibv)
                        goto error;
-               }
        }
-       return -ret;
+       return 0;
 error:
-       priv_rxq_stop(priv);
-       return -ret;
+       ret = rte_errno; /* Save rte_errno before cleanup. */
+       mlx5_rxq_stop(dev);
+       rte_errno = ret; /* Restore rte_errno. */
+       return -rte_errno;
 }
 
 /**
@@ -126,68 +165,73 @@ error:
  *   Pointer to Ethernet device structure.
  *
  * @return
- *   0 on success, negative errno value on failure.
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
 int
 mlx5_dev_start(struct rte_eth_dev *dev)
 {
        struct priv *priv = dev->data->dev_private;
        struct mlx5_mr *mr = NULL;
-       int err;
+       int ret;
 
        dev->data->dev_started = 1;
-       priv_lock(priv);
-       err = priv_flow_create_drop_queue(priv);
-       if (err) {
-               ERROR("%p: Drop queue allocation failed: %s",
-                     (void *)dev, strerror(err));
+       ret = mlx5_flow_create_drop_queue(dev);
+       if (ret) {
+               DRV_LOG(ERR, "port %u drop queue allocation failed: %s",
+                       dev->data->port_id, strerror(rte_errno));
                goto error;
        }
-       DEBUG("%p: allocating and configuring hash RX queues", (void *)dev);
+       DRV_LOG(DEBUG, "port %u allocating and configuring hash Rx queues",
+               dev->data->port_id);
        rte_mempool_walk(mlx5_mp2mr_iter, priv);
-       err = priv_txq_start(priv);
-       if (err) {
-               ERROR("%p: TXQ allocation failed: %s",
-                     (void *)dev, strerror(err));
+       ret = mlx5_txq_start(dev);
+       if (ret) {
+               DRV_LOG(ERR, "port %u Tx queue allocation failed: %s",
+                       dev->data->port_id, strerror(rte_errno));
+               goto error;
+       }
+       ret = mlx5_rxq_start(dev);
+       if (ret) {
+               DRV_LOG(ERR, "port %u Rx queue allocation failed: %s",
+                       dev->data->port_id, strerror(rte_errno));
                goto error;
        }
-       err = priv_rxq_start(priv);
-       if (err) {
-               ERROR("%p: RXQ allocation failed: %s",
-                     (void *)dev, strerror(err));
+       ret = mlx5_rx_intr_vec_enable(dev);
+       if (ret) {
+               DRV_LOG(ERR, "port %u Rx interrupt vector creation failed",
+                       dev->data->port_id);
                goto error;
        }
-       err = priv_rx_intr_vec_enable(priv);
-       if (err) {
-               ERROR("%p: RX interrupt vector creation failed",
-                     (void *)priv);
+       mlx5_xstats_init(dev);
+       ret = mlx5_traffic_enable(dev);
+       if (ret) {
+               DRV_LOG(DEBUG, "port %u failed to set defaults flows",
+                       dev->data->port_id);
                goto error;
        }
-       priv_xstats_init(priv);
-       /* Update link status and Tx/Rx callbacks for the first time. */
-       memset(&dev->data->dev_link, 0, sizeof(struct rte_eth_link));
-       INFO("Forcing port %u link to be up", dev->data->port_id);
-       err = priv_force_link_status_change(priv, ETH_LINK_UP);
-       if (err) {
-               DEBUG("Failed to set port %u link to be up",
-                     dev->data->port_id);
+       ret = mlx5_flow_start(dev, &priv->flows);
+       if (ret) {
+               DRV_LOG(DEBUG, "port %u failed to set flows",
+                       dev->data->port_id);
                goto error;
        }
-       priv_dev_interrupt_handler_install(priv, dev);
-       priv_unlock(priv);
+       dev->tx_pkt_burst = mlx5_select_tx_function(dev);
+       dev->rx_pkt_burst = mlx5_select_rx_function(dev);
+       mlx5_dev_interrupt_handler_install(dev);
        return 0;
 error:
+       ret = rte_errno; /* Save rte_errno before cleanup. */
        /* Rollback. */
        dev->data->dev_started = 0;
        for (mr = LIST_FIRST(&priv->mr); mr; mr = LIST_FIRST(&priv->mr))
-               priv_mr_release(priv, mr);
-       priv_flow_stop(priv, &priv->flows);
-       priv_dev_traffic_disable(priv, dev);
-       priv_txq_stop(priv);
-       priv_rxq_stop(priv);
-       priv_flow_delete_drop_queue(priv);
-       priv_unlock(priv);
-       return err;
+               mlx5_mr_release(mr);
+       mlx5_flow_stop(dev, &priv->flows);
+       mlx5_traffic_disable(dev);
+       mlx5_txq_stop(dev);
+       mlx5_rxq_stop(dev);
+       mlx5_flow_delete_drop_queue(dev);
+       rte_errno = ret; /* Restore rte_errno. */
+       return -rte_errno;
 }
 
 /**
@@ -204,40 +248,40 @@ mlx5_dev_stop(struct rte_eth_dev *dev)
        struct priv *priv = dev->data->dev_private;
        struct mlx5_mr *mr;
 
-       priv_lock(priv);
        dev->data->dev_started = 0;
        /* Prevent crashes when queues are still in use. */
        dev->rx_pkt_burst = removed_rx_burst;
        dev->tx_pkt_burst = removed_tx_burst;
        rte_wmb();
        usleep(1000 * priv->rxqs_n);
-       DEBUG("%p: cleaning up and destroying hash RX queues", (void *)dev);
-       priv_flow_stop(priv, &priv->flows);
-       priv_dev_traffic_disable(priv, dev);
-       priv_rx_intr_vec_disable(priv);
-       priv_dev_interrupt_handler_uninstall(priv, dev);
-       priv_txq_stop(priv);
-       priv_rxq_stop(priv);
+       DRV_LOG(DEBUG, "port %u cleaning up and destroying hash Rx queues",
+               dev->data->port_id);
+       mlx5_flow_stop(dev, &priv->flows);
+       mlx5_traffic_disable(dev);
+       mlx5_rx_intr_vec_disable(dev);
+       mlx5_dev_interrupt_handler_uninstall(dev);
+       mlx5_txq_stop(dev);
+       mlx5_rxq_stop(dev);
        for (mr = LIST_FIRST(&priv->mr); mr; mr = LIST_FIRST(&priv->mr))
-               priv_mr_release(priv, mr);
-       priv_flow_delete_drop_queue(priv);
-       priv_unlock(priv);
+               mlx5_mr_release(mr);
+       mlx5_flow_delete_drop_queue(dev);
 }
 
 /**
  * Enable traffic flows configured by control plane
  *
- * @param priv
+ * @param dev
  *   Pointer to Ethernet device private data.
  * @param dev
  *   Pointer to Ethernet device structure.
  *
  * @return
- *   0 on success.
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
 int
-priv_dev_traffic_enable(struct priv *priv, struct rte_eth_dev *dev)
+mlx5_traffic_enable(struct rte_eth_dev *dev)
 {
+       struct priv *priv = dev->data->dev_private;
        struct rte_flow_item_eth bcast = {
                .dst.addr_bytes = "\xff\xff\xff\xff\xff\xff",
        };
@@ -270,8 +314,9 @@ priv_dev_traffic_enable(struct priv *priv, struct rte_eth_dev *dev)
                        .type = 0,
                };
 
-               claim_zero(mlx5_ctrl_flow(dev, &promisc, &promisc));
-               return 0;
+               ret = mlx5_ctrl_flow(dev, &promisc, &promisc);
+               if (ret)
+                       goto error;
        }
        if (dev->data->all_multicast) {
                struct rte_flow_item_eth multicast = {
@@ -280,7 +325,9 @@ priv_dev_traffic_enable(struct priv *priv, struct rte_eth_dev *dev)
                        .type = 0,
                };
 
-               claim_zero(mlx5_ctrl_flow(dev, &multicast, &multicast));
+               ret = mlx5_ctrl_flow(dev, &multicast, &multicast);
+               if (ret)
+                       goto error;
        } else {
                /* Add broadcast/multicast flows. */
                for (i = 0; i != vlan_filter_n; ++i) {
@@ -340,74 +387,49 @@ priv_dev_traffic_enable(struct priv *priv, struct rte_eth_dev *dev)
                                goto error;
                }
                if (!vlan_filter_n) {
-                       ret = mlx5_ctrl_flow(dev, &unicast,
-                                            &unicast_mask);
+                       ret = mlx5_ctrl_flow(dev, &unicast, &unicast_mask);
                        if (ret)
                                goto error;
                }
        }
        return 0;
 error:
-       return rte_errno;
+       ret = rte_errno; /* Save rte_errno before cleanup. */
+       mlx5_flow_list_flush(dev, &priv->ctrl_flows);
+       rte_errno = ret; /* Restore rte_errno. */
+       return -rte_errno;
 }
 
 
 /**
  * Disable traffic flows configured by control plane
  *
- * @param priv
- *   Pointer to Ethernet device private data.
  * @param dev
- *   Pointer to Ethernet device structure.
- *
- * @return
- *   0 on success.
- */
-int
-priv_dev_traffic_disable(struct priv *priv, struct rte_eth_dev *dev)
-{
-       (void)dev;
-       priv_flow_flush(priv, &priv->ctrl_flows);
-       return 0;
-}
-
-/**
- * Restart traffic flows configured by control plane
- *
- * @param priv
  *   Pointer to Ethernet device private data.
- * @param dev
- *   Pointer to Ethernet device structure.
- *
- * @return
- *   0 on success.
  */
-int
-priv_dev_traffic_restart(struct priv *priv, struct rte_eth_dev *dev)
+void
+mlx5_traffic_disable(struct rte_eth_dev *dev)
 {
-       if (dev->data->dev_started) {
-               priv_dev_traffic_disable(priv, dev);
-               priv_dev_traffic_enable(priv, dev);
-       }
-       return 0;
+       struct priv *priv = dev->data->dev_private;
+
+       mlx5_flow_list_flush(dev, &priv->ctrl_flows);
 }
 
 /**
  * Restart traffic flows configured by control plane
  *
  * @param dev
- *   Pointer to Ethernet device structure.
+ *   Pointer to Ethernet device private data.
  *
  * @return
- *   0 on success.
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
 int
 mlx5_traffic_restart(struct rte_eth_dev *dev)
 {
-       struct priv *priv = dev->data->dev_private;
-
-       priv_lock(priv);
-       priv_dev_traffic_restart(priv, dev);
-       priv_unlock(priv);
+       if (dev->data->dev_started) {
+               mlx5_traffic_disable(dev);
+               return mlx5_traffic_enable(dev);
+       }
        return 0;
 }