[PATCH] net/mlx5: adds the checking for Tx queue affinity

[Jiawei Wang <jiaweiw@nvidia.com>]

MLX5 PMD updates the TIS index based on the tx queue affinity,
and creates the DevX SQ object with updated the TIS index.

This patch adds the checking that set the affinity per Tx Queue
if HW objects can be created by DevX.

Signed-off-by: Jiawei Wang <jiaweiw@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---
 drivers/net/mlx5/mlx5_txq.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/mlx5/mlx5_txq.c b/drivers/net/mlx5/mlx5_txq.c
index 8cb52b0f7d..b584055fa8 100644
--- a/drivers/net/mlx5/mlx5_txq.c
+++ b/drivers/net/mlx5/mlx5_txq.c
@@ -1381,6 +1381,11 @@ int mlx5_map_aggr_tx_affinity(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 	struct mlx5_priv *priv;
 
 	priv = dev->data->dev_private;
+	if (!mlx5_devx_obj_ops_en(priv->sh)) {
+		DRV_LOG(ERR, "Tx affinity mapping isn't supported by Verbs API.");
+		rte_errno = ENOTSUP;
+		return -rte_errno;
+	}
 	txq = (*priv->txqs)[tx_queue_id];
 	if (!txq)
 		return -1;
-- 
2.18.1