[dpdk-dev] [PATCH 5/7] net/mlx5: fix Rx interrupts support checks

[Adrien Mazarguil <adrien.mazarguil@6wind.com>]

Not exposing Rx interrupts callbacks when this feature is unsupported is
less intrusive than having two different versions for these functions.

Fixes: 3c7d44af252a ("net/mlx5: support user space Rx interrupt event")

Cc: stable@dpdk.org
Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
---
 drivers/net/mlx5/mlx5.c      |  2 ++
 drivers/net/mlx5/mlx5_rxq.c  | 16 ++++------------
 drivers/net/mlx5/mlx5_rxtx.h |  2 ++
 3 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index bcb2c1b..49d4dba 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -246,8 +246,10 @@ static const struct eth_dev_ops mlx5_dev_ops = {
 	.filter_ctrl = mlx5_dev_filter_ctrl,
 	.rx_descriptor_status = mlx5_rx_descriptor_status,
 	.tx_descriptor_status = mlx5_tx_descriptor_status,
+#ifdef HAVE_UPDATE_CQ_CI
 	.rx_queue_intr_enable = mlx5_rx_intr_enable,
 	.rx_queue_intr_disable = mlx5_rx_intr_disable,
+#endif
 };
 
 static struct {
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index 5421d1f..fa350bf 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -1419,6 +1419,8 @@ priv_destroy_intr_vec(struct priv *priv)
 	rte_free(intr_handle->intr_vec);
 }
 
+#ifdef HAVE_UPDATE_CQ_CI
+
 /**
  * DPDK callback for rx queue interrupt enable.
  *
@@ -1433,7 +1435,6 @@ priv_destroy_intr_vec(struct priv *priv)
 int
 mlx5_rx_intr_enable(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 {
-#ifdef HAVE_UPDATE_CQ_CI
 	struct priv *priv = mlx5_get_priv(dev);
 	struct rxq *rxq = (*priv->rxqs)[rx_queue_id];
 	struct rxq_ctrl *rxq_ctrl = container_of(rxq, struct rxq_ctrl, rxq);
@@ -1443,11 +1444,6 @@ mlx5_rx_intr_enable(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 
 	ibv_mlx5_exp_update_cq_ci(cq, ci);
 	ret = ibv_req_notify_cq(cq, 0);
-#else
-	int ret = -1;
-	(void)dev;
-	(void)rx_queue_id;
-#endif
 	if (ret)
 		WARN("unable to arm interrupt on rx queue %d", rx_queue_id);
 	return ret;
@@ -1467,7 +1463,6 @@ mlx5_rx_intr_enable(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 int
 mlx5_rx_intr_disable(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 {
-#ifdef HAVE_UPDATE_CQ_CI
 	struct priv *priv = mlx5_get_priv(dev);
 	struct rxq *rxq = (*priv->rxqs)[rx_queue_id];
 	struct rxq_ctrl *rxq_ctrl = container_of(rxq, struct rxq_ctrl, rxq);
@@ -1481,13 +1476,10 @@ mlx5_rx_intr_disable(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 		ret = -1;
 	else
 		ibv_ack_cq_events(cq, 1);
-#else
-	int ret = -1;
-	(void)dev;
-	(void)rx_queue_id;
-#endif
 	if (ret)
 		WARN("unable to disable interrupt on rx queue %d",
 		     rx_queue_id);
 	return ret;
 }
+
+#endif /* HAVE_UPDATE_CQ_CI */
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index cd79b5d..1a3ede4 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -311,8 +311,10 @@ int priv_intr_efd_enable(struct priv *priv);
 void priv_intr_efd_disable(struct priv *priv);
 int priv_create_intr_vec(struct priv *priv);
 void priv_destroy_intr_vec(struct priv *priv);
+#ifdef HAVE_UPDATE_CQ_CI
 int mlx5_rx_intr_enable(struct rte_eth_dev *dev, uint16_t rx_queue_id);
 int mlx5_rx_intr_disable(struct rte_eth_dev *dev, uint16_t rx_queue_id);
+#endif /* HAVE_UPDATE_CQ_CI */
 
 /* mlx5_txq.c */
 
-- 
2.1.4