On 2/10/2023 3:17 PM, Viacheslav Ovsiienko wrote: > The RTE Flow API implements the concept of shared objects, > known as indirect actions (RTE_FLOW_ACTION_TYPE_INDIRECT). > An application can create the indirect action of desired > type and configuration with rte_flow_action_handle_create > call and then specify the obtained action handle in multiple > flows. > > The initial concept supposes the action handle has strict > attachment to the port it was created on and to be used > exclusively in the flows being installed on the port. > > Nowadays the multipath network topologies are quite common, > packets belonging to the same connection might arrive and > be sent over multiple ports, and there is the raising demand > to handle these "spread" connections. To fulfil this demand > it is proposed to extend indirect action sharing across the > multiple ports. This kind of sharing would be extremely useful > for the meters and counters, allowing to manage the single > connection over the multiple ports. > > This cross-port object sharing is hard to implement in > generic way merely with software on the upper layers, but > can be provided by the driver over the single hardware > instance, where multiple ports reside on the same physical > NIC and share the same hardware context. > > To allow this action sharing application should specify > the "host port" during flow configuring to claim the intention > to share the indirect actions. All indirect actions reside within > "host port" context and can be shared in flows being installed > on the host port and on all the ports referencing this one. > > If sharing between host and port being configured is not supported > the configuration should be rejected with error. There might be > multiple independent (mutual exclusive) sharing domains with > dedicated host and referencing ports. > > To manage the shared indirect action any port from sharing domain > can be specified. To share or not the created action is up to > application, no API change is needed. > > Signed-off-by: Viacheslav Ovsiienko <viachesl...@nvidia.com> > > Viacheslav Ovsiienko (3): > ethdev: sharing indirect actions between ports > app/testpmd: add host port parameter into flow config > app/testpmd: add shared indirect action support > > Acked-by: Ori Kam <or...@nvidia.com> >
Series applied to dpdk-next-net/main, thanks.
