[ovs-dev] [PATCH] ofproto: Return error codes for Rule insertions

Aaron Conole aconole at redhat.com
Sun Jul 8 23:39:13 UTC 2018

Hi Arvind,

Aravind Prasad <raja.avi at gmail.com> writes:

> Currently, rule_insert() API doesnot have return value. There are some
> possible
> scenarios where rule insertions can fail at run-time even though the static
> checks during rule_construct() had passed previously.
> Some possible scenarios for failure of rule insertions:
> **) Rule insertions can fail dynamically in Hybrid mode (both Openflow and
> Normal switch functioning coexist) where the CAM space could get suddenly
> filled up by Normal switch functioning and Openflow gets devoid of
> available space.
> **) Some deployments could have separate independent layers for HW rule
> insertions and application layer to interact with OVS. HW layer
> could face any dynamic issue during rule handling which application could
> not have predicted/captured in rule-construction phase.
> Rule-insert errors for bundles are not handled in this pull-request.
> Will be handled in upcoming pull request.
> Signed-off-by: Aravind Prasad S <raja.avi at gmail.com>
> ---

Thanks for working on OVS.

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