K 10
svn:author
V 5
shurd
K 8
svn:date
V 27
2017-11-06T16:23:21.246825Z
K 7
svn:log
V 602
Only chain non-LRO mbufs when LRO is not possible

Preserve packet order between tcp_lro_rx() and if_input() to avoid
creating extra corner cases. If no packets can be LROed, combine them
into one chain for submission via if_input(). If any packet can
potentially be LROed however, retain old behaviour and call if_input()
for each packet.

This should keep the 12% improvement for small packet forwarding intact,
but mostly avoids impacting the LRO case.

Reviewed by:	cem, sbruno
Approved by:	sbruno (mentor)
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D12876

END