net/mlx5e: XDP, Allow growing tail for XDP multi buffer

[linux-2.6-microblaze.git] / drivers / net / ethernet / mellanox / mlx5 / core / en / params.c

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
index 9c94807..5ce28ff 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
@@ -732,7 +732,8 @@ static void mlx5e_rx_compute_wqe_bulk_params(struct mlx5e_params *params,
 static int mlx5e_build_rq_frags_info(struct mlx5_core_dev *mdev,
                                     struct mlx5e_params *params,
                                     struct mlx5e_xsk_param *xsk,
-                                    struct mlx5e_rq_frags_info *info)
+                                    struct mlx5e_rq_frags_info *info,
+                                    u32 *xdp_frag_size)
 {
        u32 byte_count = MLX5E_SW2HW_MTU(params, params->sw_mtu);
        int frag_size_max = DEFAULT_FRAG_SIZE;
@@ -845,6 +846,8 @@ out:
 
        info->log_num_frags = order_base_2(info->num_frags);
 
+       *xdp_frag_size = info->num_frags > 1 && params->xdp_prog ? PAGE_SIZE : 0;
+
        return 0;
 }
 
@@ -989,7 +992,8 @@ int mlx5e_build_rq_param(struct mlx5_core_dev *mdev,
        }
        default: /* MLX5_WQ_TYPE_CYCLIC */
                MLX5_SET(wq, wq, log_wq_sz, params->log_rq_mtu_frames);
-               err = mlx5e_build_rq_frags_info(mdev, params, xsk, &param->frags_info);
+               err = mlx5e_build_rq_frags_info(mdev, params, xsk, &param->frags_info,
+                                               &param->xdp_frag_size);
                if (err)
                        return err;
                ndsegs = param->frags_info.num_frags;