[dpdk-dev] [PATCH] net/mlx5: fix max number of queues for NEON Tx

[Yongseok Koh <yskoh@mellanox.com>]

BlueField SmartNIC has 0xa2d2 as PCI device ID on both ARM and x86 host. On
ARM side, Tx inlining need not be used as PCI bandwidth is not bottleneck.
Vectorized Tx can still be used up to 16 queues. For other archs
(e.g., x86), keep using the default value.

Fixes: 09d8b41699bb ("net/mlx5: make vectorized Tx threshold configurable")
Cc: stable@dpdk.org

Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
---
 drivers/net/mlx5/mlx5_defs.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/mlx5_defs.h b/drivers/net/mlx5/mlx5_defs.h
index 69b6960e94..13801a5c2d 100644
--- a/drivers/net/mlx5/mlx5_defs.h
+++ b/drivers/net/mlx5/mlx5_defs.h
@@ -63,10 +63,11 @@
 /* Default maximum number of Tx queues for vectorized Tx. */
 #if defined(RTE_ARCH_ARM64)
 #define MLX5_VPMD_MAX_TXQS 8
+#define MLX5_VPMD_MAX_TXQS_BLUEFIELD 16
 #else
 #define MLX5_VPMD_MAX_TXQS 4
+#define MLX5_VPMD_MAX_TXQS_BLUEFIELD MLX5_VPMD_MAX_TXQS
 #endif
-#define MLX5_VPMD_MAX_TXQS_BLUEFIELD 16
 
 /* Threshold of buffer replenishment for vectorized Rx. */
 #define MLX5_VPMD_RXQ_RPLNSH_THRESH(n) \
-- 
2.11.0