Module Name: src
Committed By: jdolecek
Date: Sun Apr 5 17:26:47 UTC 2020
Modified Files:
src/sys/arch/xen/xen: if_xennet_xenbus.c xennetback_xenbus.c
Log Message:
remove support for legacy rx-flip mode for xennet(4)/xvif(4), making
rx-copy (first shipped in NetBSD 6.0 in 2012) the only supported
mode
this is mostly to simplify maintenance and future development
rx-flip is not supported by Linux Dom0/DomU, and NetBSD Dom0/DomU
defaults to rx-copy for over 8 years now too, so there is little
need to keep the support for compatibility
besides compatibility there is no other reason to keep rx-flip -
page transfer is generally slower than copy due to necessary MMU/TLB
manipulation, especially on MP systems
To generate a diff of this commit:
cvs rdiff -u -r1.98 -r1.99 src/sys/arch/xen/xen/if_xennet_xenbus.c
cvs rdiff -u -r1.91 -r1.92 src/sys/arch/xen/xen/xennetback_xenbus.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
