RDMA/uverbs: Add CQ buffer UMEM attribute and driver helpers

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Add UVERBS_ATTR_CREATE_CQ_BUF_UMEM and two driver-facing
wrappers, ib_umem_get_cq_buf() and ib_umem_get_cq_buf_or_va(),
that pin a CQ buffer umem from it. The wrappers reuse the
existing legacy CQ buffer-attr filler.

Link: https://patch.msgid.link/r/20260529134312.2836341-7-jiri@resnulli.us
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Jiri Pirko 2026-05-29 15:43:02 +02:00 • committed by Jason Gunthorpe

parent 057bb70f53

commit f6d2e53ca5

4 changed files with 79 additions and 1 deletions

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include/uapi/rdma/ib_user_ioctl_cmds.h

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