RDMA/mlx4: 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
ib_umem_get_va() for the legacy UHW VA path. Apply the same
ownership pattern to the resize path.

Link: https://patch.msgid.link/r/20260529134312.2836341-11-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 15:43:06 +02:00 • committed by Jason Gunthorpe

parent c1837879e4

commit c0a94fecec

2 changed files with 31 additions and 20 deletions

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50

drivers/infiniband/hw/mlx4/cq.c

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1

drivers/infiniband/hw/mlx4/mlx4_ib.h

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