[PATCH 2/2] net/mlx5: skip DevX Tx memory allocation for Verbs

[Maayan Kashani]

From: Banoth Saikumar <banoth.saikumar at oracle.com>

Previously, the mlx5 PMD attempted to allocate consecutive Tx memory
using DevX without checking whether DevX object operations are used.
This led to allocation failures on legacy or unsupported NICs.

Skip that allocation when the port uses Verbs object operations and let
the Verbs path handle memory allocation and registration.

Fixes: bbfab2eb2528 ("net/mlx5: allocate and release unique resources for Tx queues")
Cc: stable at dpdk.org

Signed-off-by: Banoth Saikumar <banoth.saikumar at oracle.com>
Acked-by: Dariusz Sosnowski <dsosnowski at nvidia.com>
Signed-off-by: Maayan Kashani <mkashani at nvidia.com>
---
 .mailmap                        | 1 +
 drivers/net/mlx5/mlx5_trigger.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/.mailmap b/.mailmap
index 6d9e262cfb3..d5cfb05b37e 100644
--- a/.mailmap
+++ b/.mailmap
@@ -190,6 +190,7 @@ Ayuj Verma <ayverma at marvell.com> <ayuj.verma at caviumnetworks.com>
 Balakrishna Bhamidipati <bbhamidipati at marvell.com>
 Balasubramanian Manoharan <balasubramanian.manoharan at caviumnetworks.com>
 Balazs Nemeth <bnemeth at redhat.com> <balazs.nemeth at intel.com>
+Banoth Saikumar <banoth.saikumar at oracle.com>
 Bao-Long Tran <longtb5 at viettel.com.vn>
 Baoyuan Li <updoing at sina.com>
 Bar Neuman <bneuman at nvidia.com>
diff --git a/drivers/net/mlx5/mlx5_trigger.c b/drivers/net/mlx5/mlx5_trigger.c
index ef71b59fe9c..1dbde509d26 100644
--- a/drivers/net/mlx5/mlx5_trigger.c
+++ b/drivers/net/mlx5/mlx5_trigger.c
@@ -1201,7 +1201,7 @@ static int mlx5_dev_allocate_consec_tx_mem(struct rte_eth_dev *dev)
 	void *umem_buf = NULL;
 
 	/* Legacy per queue allocation, do nothing here. */
-	if (priv->sh->config.txq_mem_algn == 0)
+	if (priv->sh->config.txq_mem_algn == 0 || !mlx5_devx_obj_ops_en(priv))
 		return 0;
 	alignment = (size_t)1 << priv->sh->config.txq_mem_algn;
 	total_size = priv->consec_tx_mem.sq_total_size + priv->consec_tx_mem.cq_total_size;
-- 
2.21.0