1 files changed, 27 insertions, 14 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c
index 7b562d2c8a19..ebada0c5af3c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xsk/pool.c
@@ -11,13 +11,13 @@ static int mlx5e_xsk_map_pool(struct mlx5e_priv *priv,
 {
 	struct device *dev = mlx5_core_dma_dev(priv->mdev);
 
-	return xsk_pool_dma_map(pool, dev, 0);
+	return xsk_pool_dma_map(pool, dev, DMA_ATTR_SKIP_CPU_SYNC);
 }
 
 static void mlx5e_xsk_unmap_pool(struct mlx5e_priv *priv,
 				 struct xsk_buff_pool *pool)
 {
-	return xsk_pool_dma_unmap(pool, 0);
+	return xsk_pool_dma_unmap(pool, DMA_ATTR_SKIP_CPU_SYNC);
 }
 
 static int mlx5e_xsk_get_pools(struct mlx5e_xsk *xsk)
@@ -72,6 +72,7 @@ void mlx5e_build_xsk_param(struct xsk_buff_pool *pool, struct mlx5e_xsk_param *x
 {
 	xsk->headroom = xsk_pool_get_headroom(pool);
 	xsk->chunk_size = xsk_pool_get_chunk_size(pool);
+	xsk->unaligned = pool->unaligned;
 }
 
 static int mlx5e_xsk_enable_locked(struct mlx5e_priv *priv,
@@ -98,6 +99,15 @@ static int mlx5e_xsk_enable_locked(struct mlx5e_priv *priv,
 
 	mlx5e_build_xsk_param(pool, &xsk);
 
+	if (priv->channels.params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ &&
+	    mlx5e_mpwrq_umr_mode(priv->mdev, &xsk) == MLX5E_MPWRQ_UMR_MODE_OVERSIZED) {
+		const char *recommendation = is_power_of_2(xsk.chunk_size) ?
+			"Upgrade firmware" : "Disable striding RQ";
+
+		mlx5_core_warn(priv->mdev, "Expected slowdown with XSK frame size %u. %s for better performance.\n",
+			       xsk.chunk_size, recommendation);
+	}
+
 	if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) {
 		/* XSK objects will be created on open. */
 		goto validate_closed;
@@ -117,20 +127,18 @@ static int mlx5e_xsk_enable_locked(struct mlx5e_priv *priv,
 		goto err_remove_pool;
 
 	mlx5e_activate_xsk(c);
+	mlx5e_trigger_napi_icosq(c);
 
 	/* Don't wait for WQEs, because the newer xdpsock sample doesn't provide
 	 * any Fill Ring entries at the setup stage.
 	 */
 
-	err = mlx5e_rx_res_xsk_activate(priv->rx_res, &priv->channels, ix);
-	if (unlikely(err))
-		goto err_deactivate;
+	mlx5e_rx_res_xsk_update(priv->rx_res, &priv->channels, ix, true);
 
-	return 0;
+	mlx5e_deactivate_rq(&c->rq);
+	mlx5e_flush_rq(&c->rq, MLX5_RQC_STATE_RDY);
 
-err_deactivate:
-	mlx5e_deactivate_xsk(c);
-	mlx5e_close_xsk(c);
+	return 0;
 
 err_remove_pool:
 	mlx5e_xsk_remove_pool(&priv->xsk, ix);
@@ -169,7 +177,13 @@ static int mlx5e_xsk_disable_locked(struct mlx5e_priv *priv, u16 ix)
 		goto remove_pool;
 
 	c = priv->channels.c[ix];
-	mlx5e_rx_res_xsk_deactivate(priv->rx_res, ix);
+
+	mlx5e_activate_rq(&c->rq);
+	mlx5e_trigger_napi_icosq(c);
+	mlx5e_wait_for_min_rx_wqes(&c->rq, MLX5E_RQ_WQES_TIMEOUT);
+
+	mlx5e_rx_res_xsk_update(priv->rx_res, &priv->channels, ix, false);
+
 	mlx5e_deactivate_xsk(c);
 	mlx5e_close_xsk(c);
 
@@ -207,11 +221,10 @@ int mlx5e_xsk_setup_pool(struct net_device *dev, struct xsk_buff_pool *pool, u16
 {
 	struct mlx5e_priv *priv = netdev_priv(dev);
 	struct mlx5e_params *params = &priv->channels.params;
-	u16 ix;
 
-	if (unlikely(!mlx5e_qid_get_ch_if_in_group(params, qid, MLX5E_RQ_GROUP_XSK, &ix)))
+	if (unlikely(qid >= params->num_channels))
 		return -EINVAL;
 
-	return pool ? mlx5e_xsk_enable_pool(priv, pool, ix) :
-		      mlx5e_xsk_disable_pool(priv, ix);
+	return pool ? mlx5e_xsk_enable_pool(priv, pool, qid) :
+		      mlx5e_xsk_disable_pool(priv, qid);
 }