tree 043f63c5c908fb47fd7e338308291bc0d4a37432
parent 1e86606ba05d5e6269dabb209f5406745cb5b141
author Arthur Fabre <afabre@cloudflare.com> 1573572961 +0000
committer David S. Miller <davem@davemloft.net> 1573590220 -0800

sfc: trace_xdp_exception on XDP failure

The sfc driver can drop packets processed with XDP, notably when running
out of buffer space on XDP_TX, or returning an unknown XDP action.
This increments the rx_xdp_bad_drops ethtool counter.

Call trace_xdp_exception everywhere rx_xdp_bad_drops is incremented,
except for fragmented RX packets as the XDP program hasn't run yet.
This allows it to easily be monitored from userspace.

This mirrors the behavior of other drivers.

Signed-off-by: Arthur Fabre <afabre@cloudflare.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>