Date: Thu, 30 Aug 2018 15:22:18 -0700 (PDT) From: "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net> To: Navdeep Parhar <np@freebsd.org> Cc: Marius Halden <marius.h@lden.org>, freebsd-net@freebsd.org Subject: Re: cxl nic not working after reboot Message-ID: <201808302222.w7UMMISG028351@pdx.rh.CN85.dnsmgr.net> In-Reply-To: <ba998b8e-d54c-667d-b0bb-8a6b7a566f05@FreeBSD.org>
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> On 8/30/18 2:51 PM, Marius Halden wrote: > > 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. > > > > I'll get a couple of 1G optics in a day or so and then I'll be able to > try some things for myself. Wait for that or try a 1G TWINAX (copper) > SFP+ cable in case you have one -- that should be able to link up (if > it's really autonegotiation that's causing problems). I have seen some issues if one end has 1G optics, and the other end has 1/10G optics, it wont reliably come up every time unless you nail the other end to 1Gbps. -- Rod Grimes rgrimes@freebsd.org
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