On Tue, 23 Jun 2020 23:39:30 +0200 Lorenzo Bianconi <lorenzo@xxxxxxxxxx> wrote: > Introduce the capability to attach an eBPF program to cpumap entries. > The idea behind this feature is to add the possibility to define on > which CPU run the eBPF program if the underlying hw does not support > RSS. Current supported verdicts are XDP_DROP and XDP_PASS. > > This patch has been tested on Marvell ESPRESSObin using xdp_redirect_cpu > sample available in the kernel tree to identify possible performance > regressions. Results show there are no observable differences in > packet-per-second: > > $./xdp_redirect_cpu --progname xdp_cpu_map0 --dev eth0 --cpu 1 > rx: 354.8 Kpps > rx: 356.0 Kpps > rx: 356.8 Kpps > rx: 356.3 Kpps > rx: 356.6 Kpps > rx: 356.6 Kpps > rx: 356.7 Kpps > rx: 355.8 Kpps > rx: 356.8 Kpps > rx: 356.8 Kpps > > Co-developed-by: Jesper Dangaard Brouer <brouer@xxxxxxxxxx> > Signed-off-by: Jesper Dangaard Brouer <brouer@xxxxxxxxxx> > Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx> Acked-by: Jesper Dangaard Brouer <brouer@xxxxxxxxxx> -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat LinkedIn: http://www.linkedin.com/in/brouer
