From: "Toke Høiland-Jørgensen" <toke@redhat.com>
To: Jesper Dangaard Brouer <brouer@redhat.com>,
netdev@vger.kernel.org, Daniel Borkmann <borkmann@iogearbox.net>,
Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: a.s.protopopov@gmail.com, dsahern@gmail.com, ys114321@gmail.com,
Jesper Dangaard Brouer <brouer@redhat.com>
Subject: Re: [bpf-next v3 PATCH 2/3] samples/bpf: make xdp_fwd more practically usable via devmap lookup
Date: Thu, 08 Aug 2019 21:17:27 +0200 [thread overview]
Message-ID: <87v9v7sbzs.fsf@toke.dk> (raw)
In-Reply-To: <156528106270.22124.2563148023961869582.stgit@firesoul>
Jesper Dangaard Brouer <brouer@redhat.com> writes:
> This address the TODO in samples/bpf/xdp_fwd_kern.c, which points out
> that the chosen egress index should be checked for existence in the
> devmap. This can now be done via taking advantage of Toke's work in
> commit 0cdbb4b09a06 ("devmap: Allow map lookups from eBPF").
>
> This change makes xdp_fwd more practically usable, as this allows for
> a mixed environment, where IP-forwarding fallback to network stack, if
> the egress device isn't configured to use XDP.
>
> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
> Reviewed-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
next prev parent reply other threads:[~2019-08-08 19:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-08 16:17 [bpf-next v3 PATCH 0/3] bpf: improvements to xdp_fwd sample Jesper Dangaard Brouer
2019-08-08 16:17 ` [bpf-next v3 PATCH 1/3] samples/bpf: xdp_fwd rename devmap name to be xdp_tx_ports Jesper Dangaard Brouer
2019-08-08 19:16 ` Toke Høiland-Jørgensen
2019-08-08 16:17 ` [bpf-next v3 PATCH 2/3] samples/bpf: make xdp_fwd more practically usable via devmap lookup Jesper Dangaard Brouer
2019-08-08 19:17 ` Toke Høiland-Jørgensen [this message]
2019-08-08 19:46 ` Y Song
2019-08-08 16:17 ` [bpf-next v3 PATCH 3/3] samples/bpf: xdp_fwd explain bpf_fib_lookup return codes Jesper Dangaard Brouer
2019-08-08 19:17 ` Toke Høiland-Jørgensen
2019-08-09 16:08 ` [bpf-next v3 PATCH 0/3] bpf: improvements to xdp_fwd sample Daniel Borkmann
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