Date: Mon, 16 Mar 2015 02:49:58 +0300 From: Oleg Ginzburg <olevole@olevole.ru> To: Bryan Venteicher <bryanv@freebsd.org> Cc: freebsd-net@freebsd.org Subject: Re: SIOCSVH, SIOCGVH ioctl(2) and virtio ethernet driver Message-ID: <3860521.yJlCc0OyhB@kde4.my.domain> In-Reply-To: <CAGaYwLcjGQuRPQDX%2Bji7i=YQ6_J_Z2-aegAFnAHC9ukBaqL4BA@mail.gmail.com> References: <36413168.TE9MLvZCzL@kde4.my.domain> <CAGaYwLcjGQuRPQDX%2Bji7i=YQ6_J_Z2-aegAFnAHC9ukBaqL4BA@mail.gmail.com>
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On Monday 29 December 2014 14:18:01 Bryan Venteicher wrote:
> On Fri, Dec 26, 2014 at 8:09 AM, Oleg Ginzburg <olevole@olevole.ru> wrote:
> > is it possible to use the carp(4) protocol with
> > vtnet(4) interfaces ( which is used, for example, in bhyve(8) )
> > Currently, the standard carp init operation causes an SIOCGVH error:
> >
> > /sbin/ifconfig vtnet0 vhid 1 advskew 100 pass pass 10.10.10.10/24 alias
> > ifconfig: SIOCGVH: Protocol not supported
>
> You probably don't have the carp(4) module loaded.
Sorry for delay.
Unfortunately the problem somewhere else. Depending on the FreeBSD revision
there is a different behavior except usual. E.g:
a) 10.1-RELEASE and 10-STABLE:
% kldload carp
% kldstat -m carp
Id Refs Name
486 1 carp
% /sbin/ifconfig vtnet0 vhid 1 advskew 100 pass navuhodonosor 192.168.1.210/24
state master alias
ifconfig: SIOCSVH: Invalid argument
b) On FreeBSD-current r276500M CARP IP is established for some seconds, then
vanishes:
% /sbin/ifconfig vtnet0 vhid 1 advskew 100 pass navuhodonosor 192.168.1.210/24
state master alias
% ifconfig vtnet0
vtnet0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu
1500
options=80028<VLAN_MTU,JUMBO_MTU,LINKSTATE>
ether 00:a0:98:d7:e3:65
inet 192.168.1.170 netmask 0xffffff00 broadcast 192.168.1.255
inet 192.168.1.210 netmask 0xffffff00 broadcast 192.168.1.255 vhid 1
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet 10Gbase-T <full-duplex>
status: active
carp: BACKUP vhid 1 advbase 1 advskew 100
% ifconfig vtnet0
vtnet0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu
1500
options=80028<VLAN_MTU,JUMBO_MTU,LINKSTATE>
ether 00:a0:98:d7:e3:65
inet 192.168.1.170 netmask 0xffffff00 broadcast 192.168.1.255
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet 10Gbase-T <full-duplex>
status: active
% dmesg
...
carp_alloc_if: ifpromisc(vtnet0) failed: 45
carp: VHID 1@vtnet0: INIT -> BACKUP
carp: VHID 1@vtnet0: BACKUP -> MASTER (master down)
ifa_del_loopback_route: deletion failed: 3
ifa_del_loopback_route: deletion failed: 3
And one more dmesg from the server with more fresher revision (r280012M):
carp_alloc_if: ifpromisc(vtnet0) failed: 45
carp: 1@vtnet0: INIT -> BACKUP (initialization complete)
carp: 1@vtnet0: BACKUP -> MASTER (master timed out)
--
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