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Date:      Tue, 24 Mar 2020 17:44:50 -0400
From:      "Dan Langille" <dan@langille.org>
To:        "Gary Palmer" <gpalmer@freebsd.org>
Cc:        sthaug <sthaug@nethelp.no>, "Pieper, Jeffrey E" <jeffrey.e.pieper@intel.com>, freebsd-net@freebsd.org
Subject:   Re: SFP+ on PRO/10GbE
Message-ID:  <ce8d75c9-c172-4d06-a154-a584ca749178@www.fastmail.com>
In-Reply-To: <be2235c1-1550-4a5e-be2f-e31379b08da1@www.fastmail.com>
References:  <cb8f9df8-4a97-4823-bbcd-560a95e9df19@www.fastmail.com> <2A35EA60C3C77D438915767F458D6568B90935EC@ORSMSX111.amr.corp.intel.com> <e93467c5-d6bd-4db0-b4a4-a382adad7289@www.fastmail.com> <20200322.214355.415142200.sthaug@nethelp.no> <bd63a50a-5a1e-404a-bbf4-f8c795d369d6@www.fastmail.com> <20200322230339.GB5808@in-addr.com> <8141b371-5cdf-4f82-8959-5fa1071aa6dd@www.fastmail.com> <be2235c1-1550-4a5e-be2f-e31379b08da1@www.fastmail.com>

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On Tue, Mar 24, 2020, at 5:23 PM, Dan Langille wrote:
> On Sun, Mar 22, 2020, at 7:24 PM, Dan Langille wrote:
> > On Sun, Mar 22, 2020, at 7:03 PM, Gary Palmer wrote:
> > > On Sun, Mar 22, 2020 at 05:11:20PM -0400, Dan Langille wrote:
> > > > On Sun, Mar 22, 2020, at 4:43 PM, sthaug@nethelp.no wrote:
> > > > > > Partial success.  The card is now able to use an SFP+ optic.  It warns me
> > > > > > when the optic is installed:
> > > > > > 
> > > > > > Mar 22 16:49:45 r720-01 kernel: WARNING: Intel (R) Network Connections are quality tested using Intel (R) Ethernet Optics. Using untested modules is not supported and may cause unstable operation or damage to the module or the adapter. Intel Corporation is not responsible for any harm caused by using untested modules.
> > > > > > 
> > > > > > I cannot use an SFP+ optic at the switch.  The connection just does not happen.
> > > > > > 
> > > > > > If I go back to the original SFP optic, the connection occurs, as expected at 1G.
> > > > > > 
> > > > > > On the switch side, I've tried a known good optic from an existing connection.
> > > > > > 
> > > > > > I could install an PRO/10GbE instead, that has a built-in transceiver. I have
> > > > > > two of those in use now, both working on 10G.
> > > > > 
> > > > > Have you tried connected it to something other than the Unifi switch?
> > > > 
> > > > The only SFP+ capable switches I have are Unifi.
> > > > 
> > > > I just tried the other switch (US-48) which had one SFP+ port free.  Same issues there.
> > > 
> > > Did the Unifi switch see the SFP+ optics on the switch end?
> > 
> > That port never lit up on the switch. I didn't check anything else, 
> > switch-related.
> 
> I just inserted a 10G transceiver into port 8. It shows up as a 10GBase-SR
> 
> Screen shots at https://imgur.com/a/SSEgyxN
> 
> At the same time, on the server side, ifconfig indicates:
> 
>         status: no carrier
>         supported media:
>                 media autoselect
>                 media 10Gbase-SR
>         nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
>         plugged: SFP/SFP+/SFP28 10G Base-SR (LC)
>         vendor: AVAGO PN: AFBR-703SDZ SN: AD0946A00YB DATE: 2009-11-10
>         module temperature: 36.75 C Voltage: 3.32 Volts
>         RX: 0.67 mW (-1.72 dBm) TX: 0.56 mW (-2.46 dBm)
> 
> I have not yet tried moving from auto-negotiate on both ends.

With the switch set to 10 Gbps FDX, this command on the server gives an error:

# ifconfig ix0 media 10Gbase-SR
ix0: Invalid media type!

Then I tried:

# ifconfig ix0 down
# ifconfig ix0 up

Then it worked. 10G.

I moved the cable back to the original 10G transceiver where it was doing 1G.  That went to 10G.

Auto-negotiate is not needed.  Just the up/down to reset the NIC.

All good now. :)

Thank you.

-- 
  Dan Langille
  dan@langille.org



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