diff options
| author |   Leon Romanovsky <leonro@mellanox.com> | 2015-12-20 12:16:11 +0200 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2015-12-23 23:33:14 -0500 |
| commit | 051f263098a90d208e2d20251bfd4834bc783214 (patch) | |
| tree | 0993c06cb278638d32adb2995812608fa4ca47e8 /drivers/infiniband/hw/mlx5/mlx5_ib.h | |
| parent | IB/core: Add cross-channel support (diff) | |
| download | linux-dev-051f263098a90d208e2d20251bfd4834bc783214.tar.xz linux-dev-051f263098a90d208e2d20251bfd4834bc783214.zip | |
IB/mlx5: Add driver cross-channel support
Add support of cross-channel functionality to mlx5
driver. This includes ability to ignore overrun for CQ
which intended for cross-channel, export device capability and
configure the QP to be sync master/slave queues.
The cross-channel enabled QP supports combination of
three possible properties:
* WQE processing on the receive queue of this QP
* WQE processing on the send queue of this QP
* WQE are supported on the send queue
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mlx5_ib.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 1303487ffe6b..d4b227126265 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -90,6 +90,10 @@ enum mlx5_ib_mad_ifc_flags { MLX5_MAD_IFC_NET_VIEW = 4, }; +enum { + MLX5_CROSS_CHANNEL_UUAR = 0, +}; + struct mlx5_ib_ucontext { struct ib_ucontext ibucontext; struct list_head db_page_list; @@ -247,6 +251,9 @@ struct mlx5_ib_cq_buf { enum mlx5_ib_qp_flags { MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK = 1 << 0, MLX5_IB_QP_SIGNATURE_HANDLING = 1 << 1, + MLX5_IB_QP_CROSS_CHANNEL = 1 << 2, + MLX5_IB_QP_MANAGED_SEND = 1 << 3, + MLX5_IB_QP_MANAGED_RECV = 1 << 4, }; struct mlx5_umr_wr { @@ -289,6 +296,7 @@ struct mlx5_ib_cq { struct mlx5_ib_cq_buf *resize_buf; struct ib_umem *resize_umem; int cqe_size; + u32 create_flags; }; struct mlx5_ib_srq { @@ -678,4 +686,12 @@ static inline int is_qp1(enum ib_qp_type qp_type) #define MLX5_MAX_UMR_SHIFT 16 #define MLX5_MAX_UMR_PAGES (1 << MLX5_MAX_UMR_SHIFT) +static inline u32 check_cq_create_flags(u32 flags) +{ + /* + * It returns non-zero value for unsupported CQ + * create flags, otherwise it returns zero. + */ + return (flags & ~IB_CQ_FLAGS_IGNORE_OVERRUN); +} #endif /* MLX5_IB_H */ |