RDMA/core: Support IB sub device with type "SMI"

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This patch adds 2 APIs, as well as driver operations to support adding
and deleting an IB sub device, which provides part of functionalities
of it's parent.

A sub device has a type; for a sub device with type "SMI", it provides
the smi capability through umad for its parent, meaning uverb is not
supported.

A sub device cannot live without a parent. So when a parent is
released, all it's sub devices are released as well.

Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Link: https://lore.kernel.org/r/44253f7508b21eb2caefea3980c2bc072869116c.1718553901.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>

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Mark Zhang 2024-06-16 19:08:36 +03:00 • committed by Leon Romanovsky

parent 2a5db20fa5

commit bca5119762

4 changed files with 119 additions and 1 deletions

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69

drivers/infiniband/core/device.c

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3

drivers/infiniband/core/uverbs_main.c

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43

include/rdma/ib_verbs.h

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5

include/uapi/rdma/rdma_netlink.h

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