diff options
Diffstat (limited to 'drivers/net/mlx4/mlx4_intr.c')
| -rw-r--r-- | drivers/net/mlx4/mlx4_intr.c | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/drivers/net/mlx4/mlx4_intr.c b/drivers/net/mlx4/mlx4_intr.c index 50d19769..2364cb20 100644 --- a/drivers/net/mlx4/mlx4_intr.c +++ b/drivers/net/mlx4/mlx4_intr.c @@ -291,7 +291,7 @@ mlx4_intr_uninstall(struct priv *priv) } rte_eal_alarm_cancel((void (*)(void *))mlx4_link_status_alarm, priv); priv->intr_alarm = 0; - mlx4_rx_intr_vec_disable(priv); + mlx4_rxq_intr_disable(priv); rte_errno = err; return 0; } @@ -313,8 +313,6 @@ mlx4_intr_install(struct priv *priv) int rc; mlx4_intr_uninstall(priv); - if (intr_conf->rxq && mlx4_rx_intr_vec_enable(priv) < 0) - goto error; if (intr_conf->lsc | intr_conf->rmv) { priv->intr_handle.fd = priv->ctx->async_fd; rc = rte_intr_callback_register(&priv->intr_handle, @@ -395,3 +393,40 @@ mlx4_rx_intr_enable(struct rte_eth_dev *dev, uint16_t idx) } return -ret; } + +/** + * Enable datapath interrupts. + * + * @param priv + * Pointer to private structure. + * + * @return + * 0 on success, negative errno value otherwise and rte_errno is set. + */ +int +mlx4_rxq_intr_enable(struct priv *priv) +{ + const struct rte_intr_conf *const intr_conf = + &priv->dev->data->dev_conf.intr_conf; + + if (intr_conf->rxq && mlx4_rx_intr_vec_enable(priv) < 0) + goto error; + return 0; +error: + return -rte_errno; +} + +/** + * Disable datapath interrupts, keeping other interrupts intact. + * + * @param priv + * Pointer to private structure. + */ +void +mlx4_rxq_intr_disable(struct priv *priv) +{ + int err = rte_errno; /* Make sure rte_errno remains unchanged. */ + + mlx4_rx_intr_vec_disable(priv); + rte_errno = err; +} |