Date: Thu, 15 May 2003 18:13:17 -0700 (PDT) From: Robert Watson <rwatson@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/fxp if_fxp.c Message-ID: <200305160113.h4G1DHqN090638@repoman.freebsd.org>
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rwatson 2003/05/15 18:13:17 PDT
FreeBSD src repository
Modified files:
sys/dev/fxp if_fxp.c
Log:
Add a tunable/sysctl "hw.fxp_noflow" which disables flow control support
on if_fxp cards. When flow control is enabled, if the operating system
doesn't acknowledge the packet buffer filling, the card will begin to
generate ethernet quench packets, but appears to get into a feedback
loop of some sort, hosing local switches. This is a temporary workaround
for 5.1: the ability to configure flow control should probably be
exposed by some or another management interface on ethernet link layer
devices.
Approved by: re (bmah)
Reviewed by: mux
Revision Changes Path
1.179 +5 -1 src/sys/dev/fxp/if_fxp.c
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