---

yaml
---
r: 159440
b: refs/heads/master
c: b6b912e
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a35ee541a66d11d26da30d3f6046dbddd073334e
+refs/heads/master: b6b912e0804dc1b3e856da3cc82fbe78b50e968c

trunk/drivers/net/mlx4/en_main.c

@@ -218,8 +218,9 @@ static void *mlx4_en_add(struct mlx4_dev *dev)
 	mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
 		mlx4_info(mdev, "Using %d tx rings for port:%d\n",
 			  mdev->profile.prof[i].tx_ring_num, i);
-		mdev->profile.prof[i].rx_ring_num =
-			min_t(int, dev->caps.num_comp_vectors, MAX_RX_RINGS);
+		mdev->profile.prof[i].rx_ring_num = min_t(int,
+			roundup_pow_of_two(dev->caps.num_comp_vectors),
+			MAX_RX_RINGS);
 		mlx4_info(mdev, "Defaulting to %d rx rings for port:%d\n",
 			  mdev->profile.prof[i].rx_ring_num, i);
 	}

trunk/drivers/net/mlx4/en_netdev.c

@@ -1011,9 +1011,6 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 	if (err)
 		goto out;
 
-	/* Populate Rx default RSS mappings */
-	mlx4_en_set_default_rss_map(priv, &priv->rss_map, priv->rx_ring_num *
-						RSS_FACTOR, priv->rx_ring_num);
 	/* Allocate page for receive rings */
 	err = mlx4_alloc_hwq_res(mdev->dev, &priv->res,
 				MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE);

trunk/drivers/net/mlx4/en_rx.c

@@ -835,23 +835,6 @@ void mlx4_en_calc_rx_buf(struct net_device *dev)
 
 /* RSS related functions */
 
-/* Calculate rss size and map each entry in rss table to rx ring */
-void mlx4_en_set_default_rss_map(struct mlx4_en_priv *priv,
-				 struct mlx4_en_rss_map *rss_map,
-				 int num_entries, int num_rings)
-{
-	int i;
-
-	rss_map->size = roundup_pow_of_two(num_entries);
-	en_dbg(DRV, priv, "Setting default RSS map of %d entires\n",
-	       rss_map->size);
-
-	for (i = 0; i < rss_map->size; i++) {
-		rss_map->map[i] = i % num_rings;
-		en_dbg(DRV, priv, "Entry %d ---> ring %d\n", i, rss_map->map[i]);
-	}
-}
-
 static int mlx4_en_config_rss_qp(struct mlx4_en_priv *priv,
 				 int qpn, int srqn, int cqn,
 				 enum mlx4_qp_state *state,
@@ -902,16 +885,17 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
 	int good_qps = 0;
 
 	en_dbg(DRV, priv, "Configuring rss steering\n");
-	err = mlx4_qp_reserve_range(mdev->dev, rss_map->size,
-				    rss_map->size, &rss_map->base_qpn);
+	err = mlx4_qp_reserve_range(mdev->dev, priv->rx_ring_num,
+				    priv->rx_ring_num,
+				    &rss_map->base_qpn);
 	if (err) {
-		en_err(priv, "Failed reserving %d qps\n", rss_map->size);
+		en_err(priv, "Failed reserving %d qps\n", priv->rx_ring_num);
 		return err;
 	}
 
-	for (i = 0; i < rss_map->size; i++) {
-		cqn = priv->rx_ring[rss_map->map[i]].cqn;
-		srqn = priv->rx_ring[rss_map->map[i]].srq.srqn;
+	for (i = 0; i < priv->rx_ring_num; i++) {
+		cqn = priv->rx_ring[i].cqn;
+		srqn = priv->rx_ring[i].srq.srqn;
 		qpn = rss_map->base_qpn + i;
 		err = mlx4_en_config_rss_qp(priv, qpn, srqn, cqn,
 					    &rss_map->state[i],
@@ -940,7 +924,7 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
 
 	ptr = ((void *) &context) + 0x3c;
 	rss_context = (struct mlx4_en_rss_context *) ptr;
-	rss_context->base_qpn = cpu_to_be32(ilog2(rss_map->size) << 24 |
+	rss_context->base_qpn = cpu_to_be32(ilog2(priv->rx_ring_num) << 24 |
 					    (rss_map->base_qpn));
 	rss_context->default_qpn = cpu_to_be32(rss_map->base_qpn);
 	rss_context->hash_fn = rss_xor & 0x3;
@@ -967,7 +951,7 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
 		mlx4_qp_remove(mdev->dev, &rss_map->qps[i]);
 		mlx4_qp_free(mdev->dev, &rss_map->qps[i]);
 	}
-	mlx4_qp_release_range(mdev->dev, rss_map->base_qpn, rss_map->size);
+	mlx4_qp_release_range(mdev->dev, rss_map->base_qpn, priv->rx_ring_num);
 	return err;
 }
 
@@ -983,13 +967,13 @@ void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv)
 	mlx4_qp_free(mdev->dev, &rss_map->indir_qp);
 	mlx4_qp_release_range(mdev->dev, priv->base_qpn, 1);
 
-	for (i = 0; i < rss_map->size; i++) {
+	for (i = 0; i < priv->rx_ring_num; i++) {
 		mlx4_qp_modify(mdev->dev, NULL, rss_map->state[i],
 			       MLX4_QP_STATE_RST, NULL, 0, 0, &rss_map->qps[i]);
 		mlx4_qp_remove(mdev->dev, &rss_map->qps[i]);
 		mlx4_qp_free(mdev->dev, &rss_map->qps[i]);
 	}
-	mlx4_qp_release_range(mdev->dev, rss_map->base_qpn, rss_map->size);
+	mlx4_qp_release_range(mdev->dev, rss_map->base_qpn, priv->rx_ring_num);
 }
 
 

trunk/drivers/net/mlx4/mlx4_en.h

@@ -95,8 +95,6 @@
 #define MLX4_EN_PAGE_SIZE	(1 << MLX4_EN_PAGE_SHIFT)
 #define MAX_TX_RINGS		16
 #define MAX_RX_RINGS		16
-#define MAX_RSS_MAP_SIZE	64
-#define RSS_FACTOR		2
 #define TXBB_SIZE		64
 #define HEADROOM		(2048 / TXBB_SIZE + 1)
 #define STAMP_STRIDE		64
@@ -377,11 +375,9 @@ struct mlx4_en_dev {
 
 
 struct mlx4_en_rss_map {
-	int size;
 	int base_qpn;
-	u16 map[MAX_RSS_MAP_SIZE];
-	struct mlx4_qp qps[MAX_RSS_MAP_SIZE];
-	enum mlx4_qp_state state[MAX_RSS_MAP_SIZE];
+	struct mlx4_qp qps[MAX_RX_RINGS];
+	enum mlx4_qp_state state[MAX_RX_RINGS];
 	struct mlx4_qp indir_qp;
 	enum mlx4_qp_state indir_state;
 };
@@ -555,9 +551,6 @@ int mlx4_en_map_buffer(struct mlx4_buf *buf);
 void mlx4_en_unmap_buffer(struct mlx4_buf *buf);
 
 void mlx4_en_calc_rx_buf(struct net_device *dev);
-void mlx4_en_set_default_rss_map(struct mlx4_en_priv *priv,
-				 struct mlx4_en_rss_map *rss_map,
-				 int num_entries, int num_rings);
 int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv);
 void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv);
 int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring);