net/mlx5: fix UAR remapping on non configured queues

priv_tx_uar_remap() is wrongly considering the queue is already configured
and thus present in the queue array of the device.

Fixes: f8b9a3bad467 ("net/mlx5: install a socket to exchange a file descriptor")
Cc: stable@dpdk.org
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>

diff --git a/drivers/net/mlx5/mlx5_txq.c b/drivers/net/mlx5/mlx5_txq.c
index 23002cf..ed1c713 100644 (file)
--- a/drivers/net/mlx5/mlx5_txq.c
+++ b/drivers/net/mlx5/mlx5_txq.c
@@ -296,6 +296,8 @@ priv_tx_uar_remap(struct priv *priv, int fd)
         * Ref to libmlx5 function: mlx5_init_context()
         */
        for (i = 0; i != priv->txqs_n; ++i) {
+               if (!(*priv->txqs)[i])
+                       continue;
                txq = (*priv->txqs)[i];
                txq_ctrl = container_of(txq, struct mlx5_txq_ctrl, txq);
                /* UAR addr form verbs used to find dup and offset in page. */