RDMA/efa: Use ib_umem_get_cq_buf() for user CQ buffer

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Pin the user CQ buffer with ib_umem_get_cq_buf() and take
ownership of the umem in the driver. Fall back to the
existing kernel-DMA path on NULL.

Link: https://patch.msgid.link/r/20260529134312.2836341-8-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 15:43:03 +02:00 • committed by Jason Gunthorpe

parent f6d2e53ca5

commit e3433474db

1 changed files with 17 additions and 10 deletions

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27

drivers/infiniband/hw/efa/efa_verbs.c

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