Date: Tue, 28 Oct 2014 23:46:18 +1100 From: Lawrence Stewart <lstewart@freebsd.org> To: Hiroki Sato <hrs@freebsd.org>, src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r272386 - in head: sbin/ifconfig share/man/man4 sys/net Message-ID: <544F901A.4000600@freebsd.org> In-Reply-To: <544DB140.7070807@freebsd.org> References: <201410012137.s91LbXL4025967@svn.freebsd.org> <544DB140.7070807@freebsd.org>
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On 10/27/14 13:43, Lawrence Stewart wrote: > Hi Hiroki-san, > > On 10/02/14 07:37, Hiroki Sato wrote: >> Author: hrs >> Date: Wed Oct 1 21:37:32 2014 >> New Revision: 272386 >> URL: https://svnweb.freebsd.org/changeset/base/272386 >> >> Log: >> Virtualize lagg(4) cloner. This change fixes a panic when tearing down >> if_lagg(4) interfaces which were cloned in a vnet jail. >> >> Sysctl nodes which are dynamically generated for each cloned interface >> (net.link.lagg.N.*) have been removed, and use_flowid and flowid_shift >> ifconfig(8) parameters have been added instead. Flags and per-interface >> statistics counters are displayed in "ifconfig -v". >> >> CR: D842 >> >> Modified: >> head/sbin/ifconfig/ifconfig.8 >> head/sbin/ifconfig/iflagg.c >> head/share/man/man4/lagg.4 >> head/sys/net/ieee8023ad_lacp.c >> head/sys/net/if_lagg.c >> head/sys/net/if_lagg.h > > What was the reasoning for removing the net.link.lagg.* sysctls? We use > them at Netflix and the new way of obtaining the information via > ifconfig -v is less structured and significantly higher overhead by > comparison. Would be good to have the sysctls back or an equivalent low > overhead way of obtaining the previously available information. So it turns out I was missing some important context on this matter. We don't in fact want or need the sysctls back and have a sane way to access the information via means other than parsing ifconfig output. In short, apologies for the noise and move along, there's nothing to see here :) Cheers, Lawrence
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