mlx4_ib: Fix the SQ size of an RC QP to support masked atomic operation

When calculating the required size of an RC QP send queue,
leave enough space for masked atomic operation (which requires
more space than "regular" atomic operation).

Signed-off-by: Dotan Barak <[email protected]>
Reviewed-by: Eli Cohen <[email protected]>
Signed-off-by: Vladimir Sokolovsky <[email protected]>
(Ported from Mellanox OFED 2.4)

Signed-off-by: Mukesh Kacker <[email protected]>

Author: Dotan Barak

drivers/infiniband/hw/mlx4/qp.c

@@ -356,7 +356,7 @@ static int send_wqe_overhead(enum mlx4_ib_qp_type type, u32 flags)
 			sizeof (struct mlx4_wqe_raddr_seg);
 	case MLX4_IB_QPT_RC:
 		return sizeof (struct mlx4_wqe_ctrl_seg) +
-			sizeof (struct mlx4_wqe_atomic_seg) +
+			sizeof (struct mlx4_wqe_masked_atomic_seg) +
 			sizeof (struct mlx4_wqe_raddr_seg);
 	case MLX4_IB_QPT_SMI:
 	case MLX4_IB_QPT_GSI: