[PATCH v5] ethdev: add send to kernel action

[Andrew Rybchenko]

On 10/3/22 19:34, Michael Savisko wrote:
> In some cases application may receive a packet that should have been
> received by the kernel. In this case application uses KNI or other means
> to transfer the packet to the kernel.
> 
> With bifurcated driver we can have a rule to route packets matching
> a pattern (example: IPv4 packets) to the DPDK application and the rest
> of the traffic will be received by the kernel.
> But if we want to receive most of the traffic in DPDK except specific
> pattern (example: ICMP packets) that should be processed by the kernel,
> then it's easier to re-route these packets with a single rule.
> 
> This commit introduces new rte_flow action which allows application to
> re-route packets directly to the kernel without software involvement.
> 
> Add new testpmd rte_flow action 'send_to_kernel'. The application
> may use this action to route the packet to the kernel while still
> in the HW.
> 
> Example with testpmd command:
> 
> flow create 0 ingress priority 0 group 1 pattern eth type spec 0x0800
> type mask 0xffff / end actions send_to_kernel / end
> 
> Signed-off-by: Michael Savisko <michaelsav at nvidia.com>
> Acked-by: Ori Kam <orika at nvidia.com>

Acked-by: Andrew Rybchenko <andrew.rybchenko at oktetlabs.ru>

Applied to dpdk-next-net/main, thanks.