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Date: Sun, 14 Jun 2015 21:39:21 +0200
From: Hans Petter Selasky <hps@selasky.org>
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To: Mihai Vintila <unixro@gmail.com>, freebsd-infiniband@freebsd.org
Subject: Re: Ib0 not working unless i unload ipoib and load it again.
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On 06/14/15 21:12, Mihai Vintila wrote:
> Same behavior:
>   sysctl -w sys.device.mlx4_core0.mlx4_port1=ib
> sys.device.mlx4_core0.mlx4_port1: eth -> ib
>   ifconfig ib0
> ib0: flags=8043<UP,BROADCAST,RUNNING,MULTICAST> metric 0 mtu 2044
> options=8009b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LINKSTATE>
>          lladdr 0.0.0.48.fe.80.0.0.0.0.0.0.e4.1d.2d.3.0.a.21.31
>          inet 10.105.0.225 netmask 0xffffff00 broadcast 10.105.0.255
>          nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>
>   ping 10.105.0.15
> PING 10.105.0.15 (10.105.0.15): 56 data bytes
> ping: sendto: No route to host
> ping: sendto: No route to host
>
> Might worth to mention that this host also holds opensm, and i actually
> need to run opensm first next unload/load the module.
> But i rather expect that the ib0 state changes along mlx4_core0 state.
>

If you do:

ifconfig ib0 down
ifconfig ib0 up

Does it work then?

--HPS