diff options
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/rdma/ib_user_ioctl_verbs.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/uapi/rdma/ib_user_ioctl_verbs.h b/include/uapi/rdma/ib_user_ioctl_verbs.h index 90c5cd8e7753..51030c27d479 100644 --- a/include/uapi/rdma/ib_user_ioctl_verbs.h +++ b/include/uapi/rdma/ib_user_ioctl_verbs.h @@ -273,4 +273,31 @@ struct ib_uverbs_gid_entry { __u32 netdev_ifindex; /* It is 0 if there is no netdev associated with it */ }; +enum ib_uverbs_buffer_type { + IB_UVERBS_BUFFER_TYPE_DMABUF, + IB_UVERBS_BUFFER_TYPE_VA, +}; + +/* + * Describes a single buffer backed by dma-buf or user virtual address. + * Used as the payload of a per-attribute UVERBS_ATTR_UMEM-typed attribute. + * + * @type: buffer type from enum ib_uverbs_buffer_type + * @fd: dma-buf file descriptor (valid for IB_UVERBS_BUFFER_TYPE_DMABUF) + * @flags: required flags; the kernel rejects the call with -EINVAL if any + * bit is not understood. No bits are defined yet. + * @optional_flags: advisory flags; bits the kernel does not understand are + * silently ignored. No bits are defined yet. + * @addr: offset within dma-buf, or user virtual address for VA + * @length: buffer length in bytes + */ +struct ib_uverbs_buffer_desc { + __u32 type; + __s32 fd; + __u32 flags; + __u32 optional_flags; + __aligned_u64 addr; + __aligned_u64 length; +}; + #endif |