Is there a way to instruct NIC/DPDK which RXQ to deliver a packet to not RSS?

[Stephen Hemminger]

On Sun, 18 Dec 2022 16:41:13 -0500
fwefew 4t4tg <7532yahoo at gmail.com> wrote:

> I am aware of RSS; I coded it and have gotten it to work between machines.
> 
> However, the elapsed time per packet increases from <100ns/packet RSS-OFF
> to 700-800ns RSS-ON in my test setup.
> 
> In my scenario I have hardcoded routing between TXQs on client machines and
> RXQs on the server machines.

Packet direction to queue in HW is done with rte_flow (if your NIC supports it)
https://doc.dpdk.org/guides/prog_guide/rte_flow.html

RSS should be implemented in hardware. So it shouldn't be causing added
latency. What device are you using.