From: Thomas Ptacek <thomasptacek@gmail.com>
To: xdp-newbies@vger.kernel.org
Subject: bpf_redirect and xdpgeneric
Date: Fri, 18 Sep 2020 00:04:18 -0500 [thread overview]
Message-ID: <CANDGNvbX+BwA_ZUmw2rxH5FGLFsCVH33Tw3RCk3e3Qo69J+4qw@mail.gmail.com> (raw)
Weird question:
Should there be a reason for me to expect bpf_redirect to fail when
redirecting, in XDP, to the egress of an xdpgeneric device?
I'm redirecting from an XDP program on a tap device, out the igb eno1
to the Internet (and fixing MAC addresses). I can redirect to other
tap devices, but not to eno1.
I was going to try with bpf_redirect_map, but I'm having tooling
trouble there (I can't get iproute2 to load a BPF object file with a
pinned DEVMAP; it complains that the flags don't match). But for my
purposes, bpf_redirect would be fine.
(My testbed is 5.6, for whatever that's worth).
This mailing list is fantastic and you are all excellent. Thanks
whether or not anyone has any thoughts.
---
Thomas H. Ptacek
next reply other threads:[~2020-09-18 5:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-18 5:04 Thomas Ptacek [this message]
2020-09-18 10:21 ` bpf_redirect and xdpgeneric Toke Høiland-Jørgensen
2020-09-18 18:42 ` Thomas Ptacek
2020-09-18 20:27 ` David Ahern
2020-09-18 20:34 ` Thomas Ptacek
2020-09-28 15:24 ` Jesper Dangaard Brouer
2020-09-28 16:20 ` Sven Auhagen
2020-09-28 18:04 ` [Intel-wired-lan] " Nguyen, Anthony L
2020-09-28 18:14 ` Sven Auhagen
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