net/mlx5: fix DevX Rx queue memory alignment

The alignment requested by the FW for WQ buffer allocation is 512.

Change it from cache line alignment to 512.

Fixes: dc9ceff73c99 ("net/mlx5: create advanced RxQ via DevX")
Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>

diff --git a/drivers/net/mlx5/mlx5_prm.h b/drivers/net/mlx5/mlx5_prm.h
index 6ea634541fe1d69532dc83009c5df58aed62e326..42ead7d7fa244ff8a2b2ef0e9ec36b1b9d6601d4 100644 (file)
--- a/drivers/net/mlx5/mlx5_prm.h
+++ b/drivers/net/mlx5/mlx5_prm.h
@@ -240,6 +240,9 @@
 /* The maximum log value of segments per RQ WQE. */
 #define MLX5_MAX_LOG_RQ_SEGS 5u
 
+/* The alignment needed for WQ buffer. */
+#define MLX5_WQE_BUF_ALIGNMENT 512
+
 /* Completion mode. */
 enum mlx5_completion_mode {
        MLX5_COMP_ONLY_ERR = 0x0,

diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index ad5b0a95a36cce8110adbc9bb953d617794450ea..e96bb1e3789419b95037a0e123ab4b261c8dbddb 100644 (file)
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -1126,7 +1126,7 @@ mlx5_devx_rq_new(struct rte_eth_dev *dev, uint16_t idx, uint32_t cqn)
        /* Calculate and allocate WQ memory space. */
        wqe_size = 1 << log_wqe_size; /* round up power of two.*/
        wq_size = wqe_n * wqe_size;
-       buf = rte_calloc_socket(__func__, 1, wq_size, RTE_CACHE_LINE_SIZE,
+       buf = rte_calloc_socket(__func__, 1, wq_size, MLX5_WQE_BUF_ALIGNMENT,
                                rxq_ctrl->socket);
        if (!buf)
                return NULL;