RDMA/core: Add UVERBS_METHOD_ASYNC_EVENT_ALLOC

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Allow the async FD to be allocated separately from the context.

This is necessary to introduce the ioctl to create a context, as an ioctl
should only ever create a single uobject at a time.

If multiple async FDs are created then the first one is used to deliver
affiliated events from any ib_uevent_object, with all subsequent ones will
receive only unaffiliated events.

Link: https://lore.kernel.org/r/1578506740-22188-3-git-send-email-yishaih@mellanox.com
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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This commit is contained in:

Jason Gunthorpe 2020-01-08 20:05:32 +02:00

parent f862308579

commit d680e88e20

3 changed files with 33 additions and 2 deletions

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4

drivers/infiniband/core/uverbs_main.c

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23

drivers/infiniband/core/uverbs_std_types_async_fd.c

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8

include/uapi/rdma/ib_user_ioctl_cmds.h

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