mlx4_en: Using real number of rings as RSS map size

There is no point in using more QPs then actual number of receive rings.
If the RSS function for two streams gives the same result modulo number
of rings, they will arrive to the same RX ring anyway.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 9 deletions

diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h
index c7c5e86804ff..2d76ff4c564b 100644
--- a/drivers/net/mlx4/mlx4_en.h
+++ b/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);