New upstream version 17.11.3

Change-Id: I2b901aaf362a2b94195665cc890d824b2c3a620e
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

1 files changed, 140 insertions, 118 deletions

diff --git a/drivers/net/mlx5/mlx5_trigger.c b/drivers/net/mlx5/mlx5_trigger.c
index d682ea2c..214543f8 100644
--- a/drivers/net/mlx5/mlx5_trigger.c
+++ b/drivers/net/mlx5/mlx5_trigger.c
@@ -41,80 +41,119 @@
 #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;
 }