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authorAriel Levkovich <lariel@mellanox.com>2018-04-05 18:53:27 +0300
committerJason Gunthorpe <jgg@mellanox.com>2018-04-05 13:04:49 -0600
commit24da00164f7a9c247d2224a54494d0e955199630 (patch)
treed38b046ff1b7f6cefef6e70e0193eba9089d61fe /include/uapi/rdma
parente72bd817aee2bd867a90aac68aca07d99addcb55 (diff)
IB/mlx5: Device memory support in mlx5_ib
This patch adds the mlx5_ib driver implementation for the device memory allocation API. It implements the ib_device callbacks for allocation and deallocation operations as well as a new mmap command support which allows mapping an allocated device memory to a VMA. The change also adds reporting of device memory maximum size and alignment parameters reported in device capabilities. The allocation/deallocation operations are using new firmware commands to allocate MEMIC memory on the device. Signed-off-by: Ariel Levkovich <lariel@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include/uapi/rdma')
-rw-r--r--include/uapi/rdma/mlx5-abi.h1
-rw-r--r--include/uapi/rdma/mlx5_user_ioctl_cmds.h6
2 files changed, 6 insertions, 1 deletions
diff --git a/include/uapi/rdma/mlx5-abi.h b/include/uapi/rdma/mlx5-abi.h
index d86a65b993f8..cb4a02c4a1ce 100644
--- a/include/uapi/rdma/mlx5-abi.h
+++ b/include/uapi/rdma/mlx5-abi.h
@@ -430,6 +430,7 @@ enum mlx5_ib_mmap_cmd {
MLX5_IB_MMAP_CORE_CLOCK = 5,
MLX5_IB_MMAP_ALLOC_WC = 6,
MLX5_IB_MMAP_CLOCK_INFO = 7,
+ MLX5_IB_MMAP_DEVICE_MEM = 8,
};
enum {
diff --git a/include/uapi/rdma/mlx5_user_ioctl_cmds.h b/include/uapi/rdma/mlx5_user_ioctl_cmds.h
index 521813d5348c..f7d685ef2d1f 100644
--- a/include/uapi/rdma/mlx5_user_ioctl_cmds.h
+++ b/include/uapi/rdma/mlx5_user_ioctl_cmds.h
@@ -40,5 +40,9 @@ enum mlx5_ib_create_flow_action_attrs {
MLX5_IB_ATTR_CREATE_FLOW_ACTION_FLAGS = (1U << UVERBS_ID_NS_SHIFT),
};
-#endif
+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,
+};
+#endif