diff options
| author | Ariel Levkovich <lariel@mellanox.com> | 2018-04-05 18:53:24 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-04-05 11:16:39 -0600 |
| commit | bee76d7ab5d270919e80e4764df7cd7e4f06ed24 (patch) | |
| tree | d8ba6c8ddbc8aa781427f4c0081e8d05b47fb2d9 /include/rdma | |
| parent | 1d8eeb9f6a6e0d8ac43a54fd95126044bf8d6695 (diff) | |
IB/uverbs: Add alloc/free dm uverbs ioctl support
This change adds uverbs support for allocation/freeing
of device memory commands.
A new uverbs object is defined of type idr to represent
and track the new resource type allocation per context.
The API requires provider driver to implement 2 new ib_device
callbacks - one for allocation and one for deallocation which
return and accept (respectively) the ib_dm object which represents
the allocated memory on the device.
The support is added via the ioctl command infrastructure
only.
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/rdma')
| -rw-r--r-- | include/rdma/ib_verbs.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index ed425627efd8..6806c4f5657a 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -321,6 +321,12 @@ struct ib_cq_caps { u16 max_cq_moderation_period; }; +struct ib_dm_alloc_attr { + u64 length; + u32 alignment; + u32 flags; +}; + struct ib_device_attr { u64 fw_ver; __be64 sys_image_guid; @@ -1769,6 +1775,14 @@ struct ib_qp { struct rdma_restrack_entry res; }; +struct ib_dm { + struct ib_device *device; + u32 length; + u32 flags; + struct ib_uobject *uobject; + atomic_t usecnt; +}; + struct ib_mr { struct ib_device *device; struct ib_pd *pd; @@ -2425,7 +2439,11 @@ struct ib_device { int (*modify_flow_action_esp)(struct ib_flow_action *action, const struct ib_flow_action_attrs_esp *attr, struct uverbs_attr_bundle *attrs); - + struct ib_dm * (*alloc_dm)(struct ib_device *device, + struct ib_ucontext *context, + struct ib_dm_alloc_attr *attr, + struct uverbs_attr_bundle *attrs); + int (*dealloc_dm)(struct ib_dm *dm); /** * rdma netdev operation * |