net/mlx4: move RSS related definitions to be global

Towards adding RSS support for IB drivers/application who use
the mlx4 HW, make the RSS related definitions global and change
the mlx4_en driver to use them.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 27 insertions, 0 deletions

diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
index 48cc4cb97858..6562ff6aa9d6 100644
--- a/include/linux/mlx4/qp.h
+++ b/include/linux/mlx4/qp.h
@@ -97,6 +97,33 @@ enum {
         MLX4_QP_BIT_RIC                         = 1 <<  4,
 };
 
+enum {
+        MLX4_RSS_HASH_XOR                       = 0,
+        MLX4_RSS_HASH_TOP                       = 1,
+
+        MLX4_RSS_UDP_IPV6                       = 1 << 0,
+        MLX4_RSS_UDP_IPV4                       = 1 << 1,
+        MLX4_RSS_TCP_IPV6                       = 1 << 2,
+        MLX4_RSS_IPV6                           = 1 << 3,
+        MLX4_RSS_TCP_IPV4                       = 1 << 4,
+        MLX4_RSS_IPV4                           = 1 << 5,
+
+        /* offset of mlx4_rss_context within mlx4_qp_context.pri_path */
+        MLX4_RSS_OFFSET_IN_QPC_PRI_PATH         = 0x24,
+        /* offset of being RSS indirection QP within mlx4_qp_context.flags */
+        MLX4_RSS_QPC_FLAG_OFFSET                = 13,
+};
+
+struct mlx4_rss_context {
+        __be32                  base_qpn;
+        __be32                  default_qpn;
+        u16                     reserved;
+        u8                      hash_fn;
+        u8                      flags;
+        __be32                  rss_key[10];
+        __be32                  base_qpn_udp;
+};
+
 struct mlx4_qp_path {
         u8                      fl;
         u8                      reserved1[2];