The FW and SW drivers are tightly coupled on X710 - it is best to update both 
at the same time.

Thanks,

- Greg

> -----Original Message-----
> From: Sven Anders [mailto:and...@anduras.de]
> Sent: Tuesday, November 24, 2015 2:10 AM
> To: e1000-devel@lists.sourceforge.net
> Subject: Re: [E1000-devel] X710 (i40e) direct-attach-cable problem
> 
> Am 23.11.2015 um 17:29 schrieb Sven Anders:
> > Hello!
> >
> > I have a problem with my Intel Dual Ethernet controller (Intel
> > Corporation Ethernet Controller X710 for 10GbE SFP+ (rev 01)).
> > I want to use a direct-attached cable to connect my server with a HP
> > switch.
> >
> > It works ok, if I attach the cable before booting/starting the server.
> > The "ip link" command show "UP,LOWER_UP". Everything is ok.
> >
> > But, if I attach the cable after booting the server, the connection is
> > "DOWN" and will only come up, if I run an "ethtool -t eth2" test on it.
> > A single "ethtool -r eth2" does not help.
> >
> > I see the same behavior, if I connect the two ports of the Intel card
> > directly, so the HP switch does not cause it.
> >
> > I tried the following Linux kernels:
> >  - 4.1.12 (with i40e in version 1.3.2)
> >  - 4.3 (with i40e in version 1.3.9)
> >
> >> ethtool -i eth2
> > driver: i40e
> > version: 1.3.9-k
> > firmware-version: f4.22.27454 a1.1 n4.25 e143f
> > bus-info: 0000:03:00.0
> > supports-statistics: yes
> > supports-test: yes
> > supports-eeprom-access: yes
> > supports-register-dump: yes
> > supports-priv-flags: yes
> >
> > The cable I use is:
> >  INTEL(R) ETHERNET SFP+ TWINAXIAL CABLE, XDACBL3M
> >  Version: G45737-003   Date: 09/02/2015
> >
> > I this error known or any ideas, what causes it?!
> 
> Hello!
> 
> To answer by own question...
> 
> I tried the Intel driver (1.3.47) and had the same problems.
> Then I tried Windows 2012R2 and it worked. So the hardware wasn't faulty.
> 
> As a last resort I tried the newest firmware and IT WORKED!
> 
> (New firmware-version: f4.40.35115 a1.4 n4.53 e1dc0 )
> 
> Sorry for the noise, but I didn't expect the firmware causing this.
> 
> Regards
>  Sven Anders
> --
>  Sven Anders <and...@anduras.de>                 () UTF-8 Ribbon Campaign
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> 
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>   - Benjamin Franklin
> 
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