diff options
| author | Maor Gottlieb <maorg@nvidia.com> | 2021-04-11 15:29:23 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2021-04-13 19:36:36 -0300 |
| commit | cea85fa5dbc2e0206b58095c0c12ff035b11d129 (patch) | |
| tree | 00c098cae1670379fab2db547b292971407fb358 /include/uapi/rdma | |
| parent | 39cc792ff2e8d7814b322547514ef1e3ce5c36a5 (diff) | |
RDMA/mlx5: Add support in MEMIC operations
MEMIC buffer, in addition to regular read and write operations, can
support atomic operations from the host.
Introduce and implement new UAPI to allocate address space for MEMIC
operations such as atomic. This includes:
1. Expose new IOCTL for request mapping of MEMIC operation.
2. Hold the operations address in a list, so same operation to same DM
will be allocated only once.
3. Manage refcount on the mlx5_ib_dm object, so it would be keep valid
until all addresses were unmapped.
Link: https://lore.kernel.org/r/20210411122924.60230-7-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'include/uapi/rdma')
| -rw-r--r-- | include/uapi/rdma/mlx5_user_ioctl_cmds.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/uapi/rdma/mlx5_user_ioctl_cmds.h b/include/uapi/rdma/mlx5_user_ioctl_cmds.h index 3fd9b380a091..422e51118445 100644 --- a/include/uapi/rdma/mlx5_user_ioctl_cmds.h +++ b/include/uapi/rdma/mlx5_user_ioctl_cmds.h @@ -41,6 +41,17 @@ enum mlx5_ib_create_flow_action_attrs { MLX5_IB_ATTR_CREATE_FLOW_ACTION_FLAGS = (1U << UVERBS_ID_NS_SHIFT), }; +enum mlx5_ib_dm_methods { + MLX5_IB_METHOD_DM_MAP_OP_ADDR = (1U << UVERBS_ID_NS_SHIFT), +}; + +enum mlx5_ib_dm_map_op_addr_attrs { + MLX5_IB_ATTR_DM_MAP_OP_ADDR_REQ_HANDLE = (1U << UVERBS_ID_NS_SHIFT), + MLX5_IB_ATTR_DM_MAP_OP_ADDR_REQ_OP, + MLX5_IB_ATTR_DM_MAP_OP_ADDR_RESP_START_OFFSET, + MLX5_IB_ATTR_DM_MAP_OP_ADDR_RESP_PAGE_INDEX, +}; + enum mlx5_ib_alloc_dm_attrs { MLX5_IB_ATTR_ALLOC_DM_RESP_START_OFFSET = (1U << UVERBS_ID_NS_SHIFT), MLX5_IB_ATTR_ALLOC_DM_RESP_PAGE_INDEX, |