Conrad Meyer b75a772875 oce(4): Account and trace mbufs before handing to hw
Once tx mbufs have been handed to hardware, nothing serializes the tx
path against completion and potential use-after-free of the outbound
mbuf.  Perform accounting and BPF tap before queueing to hardware to
avoid this race.

Submitted by:	Steve Wirtz <steve_wirtz AT dell.com>
Reviewed by:	markj, rstone
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D25364
2020-06-20 17:22:46 +00:00
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