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mlx4_en: Assigning TX irq per ring
Until now only RX rings used irq per ring and TX used only one per port. >From now on, both of them will use the irq per ring while RX & TX ring[i] will use the same irq. Signed-off-by: Alexander Guller <alexg@mellanox.co.il> Signed-off-by: Sharon Cohen <sharonc@mellanox.co.il> Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -74,7 +74,8 @@ int mlx4_en_create_cq(struct mlx4_en_priv *priv,
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return err;
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}
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int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
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int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
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int cq_idx)
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{
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struct mlx4_en_dev *mdev = priv->mdev;
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int err = 0;
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@ -90,13 +91,15 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
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if (cq->is_tx == RX) {
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if (mdev->dev->caps.comp_pool) {
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if (!cq->vector) {
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sprintf(name , "%s-rx-%d", priv->dev->name, cq->ring);
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sprintf(name, "%s-%d", priv->dev->name,
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cq->ring);
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/* Set IRQ for specific name (per ring) */
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if (mlx4_assign_eq(mdev->dev, name, &cq->vector)) {
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cq->vector = (cq->ring + 1 + priv->port) %
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mdev->dev->caps.num_comp_vectors;
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cq->vector = (cq->ring + 1 + priv->port)
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% mdev->dev->caps.num_comp_vectors;
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mlx4_warn(mdev, "Failed Assigning an EQ to "
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"%s_rx-%d ,Falling back to legacy EQ's\n",
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priv->dev->name, cq->ring);
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"%s ,Falling back to legacy EQ's\n",
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name);
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}
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}
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} else {
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@ -104,10 +107,13 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
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mdev->dev->caps.num_comp_vectors;
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}
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} else {
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if (!cq->vector || !mdev->dev->caps.comp_pool) {
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/*Fallback to legacy pool in case of error*/
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cq->vector = 0;
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}
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/* For TX we use the same irq per
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ring we assigned for the RX */
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struct mlx4_en_cq *rx_cq;
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cq_idx = cq_idx % priv->rx_ring_num;
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rx_cq = &priv->rx_cq[cq_idx];
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cq->vector = rx_cq->vector;
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}
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if (!cq->is_tx)
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@ -587,7 +587,6 @@ int mlx4_en_start_port(struct net_device *dev)
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int i;
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int j;
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u8 mc_list[16] = {0};
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char name[32];
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if (priv->port_up) {
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en_dbg(DRV, priv, "start port called while port already up\n");
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@ -608,7 +607,7 @@ int mlx4_en_start_port(struct net_device *dev)
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for (i = 0; i < priv->rx_ring_num; i++) {
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cq = &priv->rx_cq[i];
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err = mlx4_en_activate_cq(priv, cq);
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err = mlx4_en_activate_cq(priv, cq, i);
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if (err) {
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en_err(priv, "Failed activating Rx CQ\n");
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goto cq_err;
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@ -642,20 +641,11 @@ int mlx4_en_start_port(struct net_device *dev)
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goto mac_err;
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}
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if (mdev->dev->caps.comp_pool && !priv->tx_vector) {
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sprintf(name , "%s-tx", priv->dev->name);
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if (mlx4_assign_eq(mdev->dev , name, &priv->tx_vector)) {
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mlx4_warn(mdev, "Failed Assigning an EQ to "
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"%s_tx ,Falling back to legacy "
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"EQ's\n", priv->dev->name);
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}
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}
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/* Configure tx cq's and rings */
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for (i = 0; i < priv->tx_ring_num; i++) {
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/* Configure cq */
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cq = &priv->tx_cq[i];
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cq->vector = priv->tx_vector;
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err = mlx4_en_activate_cq(priv, cq);
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err = mlx4_en_activate_cq(priv, cq, i);
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if (err) {
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en_err(priv, "Failed allocating Tx CQ\n");
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goto tx_err;
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@ -470,7 +470,6 @@ struct mlx4_en_priv {
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u16 log_rx_info;
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struct mlx4_en_tx_ring tx_ring[MAX_TX_RINGS];
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int tx_vector;
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struct mlx4_en_rx_ring rx_ring[MAX_RX_RINGS];
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struct mlx4_en_cq tx_cq[MAX_TX_RINGS];
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struct mlx4_en_cq rx_cq[MAX_RX_RINGS];
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@ -510,7 +509,8 @@ int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
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int entries, int ring, enum cq_type mode);
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void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
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bool reserve_vectors);
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int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
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int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
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int cq_idx);
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void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
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int mlx4_en_set_cq_moder(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
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int mlx4_en_arm_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
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