From: Dariusz Sosnowski
> Flow Template API allows rte_flow_configure() to be called more than once,
> to allow applications to dynamically reconfigure the amount of resources
> available for flow table and flow rule creation.
> PMDs can reject the change in configuration and keep the old configuration.
>
> Before this patch, during Flow Template API reconfiguration in mlx5 PMD, all
> the allocated resources (HW/FW object pools, flow rules, pattern and actions
> templates) were released and reallocated according to the new
> configuration. This however leads to undefined behavior, since all references
> to templates, flows or indirect actions, which are held by the user, are now
> invalidated.
>
> This patch changes the reconfiguration behavior.
> Configuration provided to rte_flow_configure() is stored in port's private
> data structure. On any subsequent call to rte_flow_configure(), the provided
> configuration is compared against the stored configuration.
> If both are equal, rte_flow_configure() reports a success and configuration is
> unaffected. Otherwise, (-ENOTSUP) is returned.
>
> Signed-off-by: Dariusz Sosnowski <dsosnow...@nvidia.com>
Acked-by: Matan Azrad <ma...@nvidia.com>
