IB/uverbs: Add alloc/free dm uverbs ioctl support

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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>

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This commit is contained in:

Ariel Levkovich 2018-04-05 18:53:24 +03:00 • committed by Jason Gunthorpe

parent 1d8eeb9f6a

commit bee76d7ab5

6 changed files with 146 additions and 3 deletions

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20

include/rdma/ib_verbs.h

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15

include/uapi/rdma/ib_user_ioctl_cmds.h

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