cxl nic not working after reboot

Marius Halden marius.h at lden.org
Thu Aug 30 21:51:30 UTC 2018


On Thu, Aug 30, 2018, at 19:27, Navdeep Parhar wrote:
> On 8/30/18 4:21 AM, Marius Halden wrote:
> > I tried to downgrade to a the previous bsdrp version we were running based on 11.1-RELEASE-p10, but it did not start working again. ifconfig output and t5nex0 devlog follows (non-working state), but it all looks fine to me (media has always been reported wrong). I did notice though that "hw_mac_init_port[0], …" will always be logged when it works but not when when it doesn't work. I confirmed this on a box still running the old version which functions as intended.
> > 
> > The ones not working has a newer firmware version than the ones working.
> > 
> > Non-working:
> > # sysctl dev.t5nex.0.firmware_version
> > dev.t5nex.0.firmware_version: 1.19.1.0
> > 
> > 
> > Working:
> > # sysctl dev.t5nex.0.firmware_version
> > dev.t5nex.0.firmware_version: 1.16.45.0
> > 
> > Any other ideas?
> > 
> 
> I'm still looking into it.  The current working theory is that the peer
> is trying to autonegotiate when it shouldn't (it's 1Gbps optics).  If
> you know how to disable AN on the peer this should be easy to test.

Thanks. Unfortunately we don't have access to the peer as that's our ISPs router. According to the sysctl autonegotiate is not supported on our side.

-- 
Marius Halden


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