[dpdk-dev] [PATCH] ethdev: support flow aging

[Andrew Rybchenko]

On 4/10/20 12:46 PM, BillZhou wrote:
> One of the reasons to destroy a flow is the fact that no packet matches the
> flow for "timeout" time.
> For example, when TCP\UDP sessions are suddenly closed.
>
> Currently, there is no any DPDK mechanism for flow aging and the
> applications use their own ways to detect and destroy aged-out flows.
>
> The flow aging implementation need include:
> - A new rte_flow action: RTE_FLOW_ACTION_TYPE_AGE to set the timeout and
>    the application flow context for each flow.
> - A new ethdev event: RTE_ETH_EVENT_FLOW_AGED for the driver to report
>    that there are new aged-out flows.
> - A new rte_flow API: rte_flow_get_aged_flows to get the aged-out flows
>    contexts from the port.
> - Support input flow aging command line in Testpmd.
>
> Signed-off-by: BillZhou <dongz at mellanox.com>

Acked-by: Andrew Rybchenko <arybchenko at solarflare.com>