IB/mlx4: Add support for masked atomic operations

Add support for masked atomic operations (masked compare and swap,
masked fetch and add).

Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

2 files changed, 9 insertions, 2 deletions

diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index e92d1bfdb330..7a7f9c1e679a 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -123,8 +123,8 @@ enum {
         MLX4_OPCODE_RDMA_READ           = 0x10,
         MLX4_OPCODE_ATOMIC_CS           = 0x11,
         MLX4_OPCODE_ATOMIC_FA           = 0x12,
-        MLX4_OPCODE_ATOMIC_MASK_CS      = 0x14,
-        MLX4_OPCODE_ATOMIC_MASK_FA      = 0x15,
+        MLX4_OPCODE_MASKED_ATOMIC_CS    = 0x14,
+        MLX4_OPCODE_MASKED_ATOMIC_FA    = 0x15,
         MLX4_OPCODE_BIND_MW             = 0x18,
         MLX4_OPCODE_FMR                 = 0x19,
         MLX4_OPCODE_LOCAL_INVAL         = 0x1b,
diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
index 9f29d86e5dc9..7abe64326f72 100644
--- a/include/linux/mlx4/qp.h
+++ b/include/linux/mlx4/qp.h
@@ -285,6 +285,13 @@ struct mlx4_wqe_atomic_seg {
         __be64                  compare;
 };
 
+struct mlx4_wqe_masked_atomic_seg {
+        __be64                  swap_add;
+        __be64                  compare;
+        __be64                  swap_add_mask;
+        __be64                  compare_mask;
+};
+
 struct mlx4_wqe_data_seg {
         __be32                  byte_count;
         __be32                  lkey;