On Fri, 18 Sep 2020 14:23:42 +0000 Asaf Penso <as...@nvidia.com> wrote:
> Hello Jan, > > You can have a look in series [1] where we propose to add APIs to DPDK20.11 > for both mirroring and sampling for packets, with additional actions of the > different traffic. > > [1] > http://patches.dpdk.org/project/dpdk/list/?series=12045 Thanks! Can you please recommend me a base where I can apply this series? For current main (dc18be1d8) I got: error: patch failed: drivers/net/mlx5/mlx5_flow_dv.c:9537 error: drivers/net/mlx5/mlx5_flow_dv.c: patch does not apply error: patch failed: drivers/net/mlx5/mlx5_flow_dv.c:80 error: drivers/net/mlx5/mlx5_flow_dv.c: patch does not apply error: patch failed: drivers/net/mlx5/mlx5_flow_dv.c:9007 error: drivers/net/mlx5/mlx5_flow_dv.c: patch does not apply Jan > > Regards, > Asaf Penso > > >-----Original Message----- > >From: dev <dev-boun...@dpdk.org> On Behalf Of Jan Viktorin > >Sent: Friday, September 18, 2020 3:56 PM > >To: dev@dpdk.org > >Subject: [dpdk-dev] Duplicating traffic with RTE Flow > > > >Hello all, > > > >we are looking for a way to duplicate ingress traffic in hardware. > > > >There is an example in [1] suggesting to insert two fate actions into the > >RTE Flow > >actions array like: > > > > flow create 0 ingress pattern end \ > > actions queue index 0 / void / queue index 1 / end > > > >But our experience is that PMDs reject two fate actions (tried with mlx5). > >Another > >similar approach would be to deliver every single packet into two virtual > >functions: > > > > flow create 0 ingress pattern end \ > > actions vf index 0 / vf index 1 / end > > > >Third possibility was to use passthru: > > > > flow create 0 ingress pattern end \ > > actions passthru / vf index 0 / end > > flow create 0 ingress pattern end \ > > actions vf index 1 / end > > > >Again, tried on mlx5 and it does not support the passthru. > > > >Last idea was to use isolate with passthru (to deliver both to DPDK > >application > >and to the kernel) but again there was no support on mlx5 for passthru... > > > > flow isolate 0 true > > flow create 0 ingress pattern end actions passthru / rss end / end > > > >Is there any other possibility or PMD+NIC that is known to solve such issue? > > > >Thanks > >Jan Viktorin > > > >[1] > >https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoc.dpdk > >.org%2Fguides%2Fprog_guide%2Frte_flow.html%23table-rte-flow-redirect- > >queue-5- > >3&data=02%7C01%7Casafp%40nvidia.com%7C1a46005bec5245e729e708d > >85bd24caf%7C43083d15727340c1b7db39efd9ccc17a%7C0%7C0%7C6373603060 > >73519816&sdata=EOF%2Fz62crvBZK8rwzwKIWxj5cVlfPVnU3FLmcL9X2w0%3 > >D&reserved=0
