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From: Konrad Zemek <konrad@zemek.io>
To: xdp-newbies@vger.kernel.org
Subject: RE: bpf_fib_lookup VLAN
Date: Fri, 16 Apr 2021 15:15:20 +0000	[thread overview]
Message-ID: <008601d732d3$4fc88ab0$ef59a010$@zemek.io> (raw)
In-Reply-To: <007301d732b8$8b0f5c90$a12e15b0$@zemek.io>

> Do you have any proposals for a workaround? Right now I'm thinking of creating a BPF map that would map ifindex->vlan, populated in the userspace
- but that assumes the output (struct bpf_fib_lookup*)->ifindex will be an index of the vlan device and not the physical device the vlan is attached on, which I'm not sure is the case yet.

I've confirmed that the ifindex returned is of the virtual/vlan device, so the userspace solution seems to be a good workaround for now.




  reply	other threads:[~2021-04-16 15:16 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-16 12:03 bpf_fib_lookup VLAN Konrad Zemek
2021-04-16 15:15 ` Konrad Zemek [this message]
2021-04-16 15:35 ` David Ahern
2021-04-16 16:12   ` Konrad Zemek
2021-04-18 17:11     ` David Ahern

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