IB/uverbs: Add action_handle flow steering specification

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Binding a flow_action to flow steering rule requires using a new
specification. Therefore, adding such an IB_FLOW_SPEC_ACTION_HANDLE flow
specification.

Flow steering rules could use flow_action(s) and as of that we need to
avoid deleting flow_action(s) as long as they're being used.
Moreover, when the attached rules are deleted, action_handle reference
count should be decremented. Introducing a new mechanism of flow
resources to keep track on the attached action_handle(s). Later on, this
mechanism should be extended to other attached flow steering resources
like flow counters.

Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Matan Barak 2018-03-28 09:27:46 +03:00 • committed by Jason Gunthorpe

parent 2eb9beaee5

commit 9b82844197

5 changed files with 121 additions and 8 deletions

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8

include/rdma/ib_verbs.h

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13

include/uapi/rdma/ib_user_verbs.h

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