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Date:      Thu, 30 Aug 2018 23:51:28 +0200
From:      Marius Halden <marius.h@lden.org>
To:        Navdeep Parhar <np@FreeBSD.org>, freebsd-net@freebsd.org
Subject:   Re: cxl nic not working after reboot
Message-ID:  <1535665888.3128528.1491873424.5CEF9F3A@webmail.messagingengine.com>
In-Reply-To: <8bb881ef-a701-1c94-3598-79a2724fa648@FreeBSD.org>
References:  <1535379569.2132387.1487489784.45227861@webmail.messagingengine.com> <20180827151302.GA10167@ox> <1535395530.234212.1487804896.64257978@webmail.messagingengine.com> <1535448912.3229649.1488521184.1EE83C33@webmail.messagingengine.com> <20180829062843.GA25476@ox> <1535538153.459716.1489861176.29777B66@webmail.messagingengine.com> <1535628110.3034153.1491191792.12397BCF@webmail.messagingengine.com> <8bb881ef-a701-1c94-3598-79a2724fa648@FreeBSD.org>

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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 ba=
sed on 11.1-RELEASE-p10, but it did not start working again. ifconfig outpu=
t and t5nex0 devlog follows (non-working state), but it all looks fine to m=
e (media has always been reported wrong). I did notice though that "hw_mac_=
init_port[0], =E2=80=A6" will always be logged when it works but not when w=
hen it doesn't work. I confirmed this on a box still running the old versio=
n which functions as intended.
> >=20
> > The ones not working has a newer firmware version than the ones working.
> >=20
> > Non-working:
> > # sysctl dev.t5nex.0.firmware_version
> > dev.t5nex.0.firmware_version: 1.19.1.0
> >=20
> >=20
> > Working:
> > # sysctl dev.t5nex.0.firmware_version
> > dev.t5nex.0.firmware_version: 1.16.45.0
> >=20
> > Any other ideas?
> >=20
>=20
> 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 r=
outer. According to the sysctl autonegotiate is not supported on our side.

--=20
Marius Halden



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