[bpf-next v2 PATCH 0/3] bpf: improvements to xdp_fwd sample

[Jesper Dangaard Brouer <brouer@redhat.com>]

V2: Addressed issues point out by Yonghong Song
 - Please ACK patch 2/3 again
 - Added ACKs and reviewed-by to other patches

This patchset is focused on improvements for XDP forwarding sample
named xdp_fwd, which leverage the existing FIB routing tables as
described in LPC2018[1] talk by David Ahern.

The primary motivation is to illustrate how Toke's recent work
improves usability of XDP_REDIRECT via lookups in devmap. The other
patches are to help users understand the sample.

I have more improvements to xdp_fwd, but those might requires changes
to libbpf.  Thus, sending these patches first as they are isolated.

[1] http://vger.kernel.org/lpc-networking2018.html#session-1

---

Jesper Dangaard Brouer (3):
      samples/bpf: xdp_fwd rename devmap name to be xdp_tx_ports
      samples/bpf: make xdp_fwd more practically usable via devmap lookup
      samples/bpf: xdp_fwd explain bpf_fib_lookup return codes


 samples/bpf/xdp_fwd_kern.c |   39 ++++++++++++++++++++++++++++++---------
 samples/bpf/xdp_fwd_user.c |   38 ++++++++++++++++++++++++++------------
 2 files changed, 56 insertions(+), 21 deletions(-)

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