Hi,
> -----Original Message-----
> From: Dekel Peled <dek...@mellanox.com>
> Sent: Monday, May 11, 2020 1:03 PM
> To: Matan Azrad <ma...@mellanox.com>; Slava Ovsiienko
> <viachesl...@mellanox.com>; Raslan Darawsheh <rasl...@mellanox.com>
> Cc: dev@dpdk.org; sta...@dpdk.org
> Subject: [PATCH] common/mlx5: fix umem buffer alignment
>
> The value MLX5_WQE_BUF_ALIGNMENT is defined as 512.
> In some cases this alignment size is not adequate, which results in
> memory registration that is not accepted by FW.
> The result error can be "page_offset is not aligned to page_size/64,
> bad umem_offset" (syndrome 0x357275).
>
> This patch updates the definition to match the running system.
>
> Fixes: 18a68e046b51 ("net/mlx5: fix DevX Rx queue memory alignment")
> Cc: sta...@dpdk.org
>
> Signed-off-by: Dekel Peled <dek...@mellanox.com>
> Acked-by: Matan Azrad <ma...@mellanox.com>
> ---
> drivers/common/mlx5/mlx5_prm.h | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/common/mlx5/mlx5_prm.h
> b/drivers/common/mlx5/mlx5_prm.h
> index 4ab1c75..b39a141 100644
> --- a/drivers/common/mlx5/mlx5_prm.h
> +++ b/drivers/common/mlx5/mlx5_prm.h
> @@ -16,6 +16,8 @@
> #pragma GCC diagnostic error "-Wpedantic"
> #endif
>
> +#include <unistd.h>
> +
> #include <rte_vect.h>
> #include <rte_byteorder.h>
>
> @@ -251,7 +253,7 @@
> #define MLX5_MAX_LOG_RQ_SEGS 5u
>
> /* The alignment needed for WQ buffer. */
> -#define MLX5_WQE_BUF_ALIGNMENT 512
> +#define MLX5_WQE_BUF_ALIGNMENT sysconf(_SC_PAGESIZE)
>
> /* Completion mode. */
> enum mlx5_completion_mode {
> --
> 1.8.3.1
Patch applied to next-net-mlx,
Kindest regards,
Raslan Darawsheh
