Re: [PATCH bpf-next v5 0/3] xdp: Allow lookup into devmaps before redirect

Andrii Nakryiko writes: > On Mon, Jun 24, 2019 at 12:38 PM Toke Høiland-Jørgensen > wrote: >> >> Andrii Nakryiko writes: >> >> > On Sat, Jun 22, 2019 at 7:19 PM Toke Høiland-Jørgensen >> > wrote: >> >> >> >> When using the bpf_redirect_map() helper to redirect packets from XDP, >> >> the eB

Re: [PATCH bpf-next v5 0/3] xdp: Allow lookup into devmaps before redirect

On Mon, Jun 24, 2019 at 12:38 PM Toke Høiland-Jørgensen wrote: > > Andrii Nakryiko writes: > > > On Sat, Jun 22, 2019 at 7:19 PM Toke Høiland-Jørgensen > > wrote: > >> > >> When using the bpf_redirect_map() helper to redirect packets from XDP, the > >> eBPF > >> program cannot currently know w

Re: [PATCH bpf-next v5 0/3] xdp: Allow lookup into devmaps before redirect

Andrii Nakryiko writes: > On Sat, Jun 22, 2019 at 7:19 PM Toke Høiland-Jørgensen > wrote: >> >> When using the bpf_redirect_map() helper to redirect packets from XDP, the >> eBPF >> program cannot currently know whether the redirect will succeed, which makes >> it >> impossible to gracefully

Re: [PATCH bpf-next v5 0/3] xdp: Allow lookup into devmaps before redirect

On Sat, Jun 22, 2019 at 7:19 PM Toke Høiland-Jørgensen wrote: > > When using the bpf_redirect_map() helper to redirect packets from XDP, the > eBPF > program cannot currently know whether the redirect will succeed, which makes > it > impossible to gracefully handle errors. To properly fix this w

[PATCH bpf-next v5 0/3] xdp: Allow lookup into devmaps before redirect

When using the bpf_redirect_map() helper to redirect packets from XDP, the eBPF program cannot currently know whether the redirect will succeed, which makes it impossible to gracefully handle errors. To properly fix this will probably require deeper changes to the way TX resources are allocated, bu