Hi Abhinay,

Is this back-to-back connection or through a switch?

Also, did you try latest igb-driver on SourceForge?

Regards,
~Akeem

-----Original Message-----
From: Jeff Kirsher [mailto:[email protected]] 
Sent: Tuesday, December 04, 2012 3:51 AM
To: abhinay aruva; Wyborny, Carolyn
Cc: e1000-devel; Brandeburg, Jesse; [email protected]
Subject: Re: [E1000-devel] Information needed regarding igb driver

On Sun, 2012-12-02 at 09:39 +0530, abhinay aruva wrote:
> Hi All,
>  
> I am working on developing software for a networking company. We are 
> facing issue with igb driver code implemented on our ethernet 
> interface
>  
> We have connected two ethernet interfaces which are on two different 
> ATCA machines as mentioned.
>  
> ATCA1:front_eth1 ----------> ATCA2:front_eth1
>  
> Both the ethernet interfaces use igb drivers.The version of these 
> drivers when checked with ethtool command is below
>  
> ethtool -i front_eth1
> driver: igb
> version: 2.0.6-fpn
> firmware-version: 2.1-1
> bus-info: 0000:04:00.1
> 
> We are testing below scenario:
> We are pinging one interface from the other one and the ping is 
> working fine when both the interfaces admin and operational state are 
> UP . Now we have made the the 'front_eth1' interface on ATCA2 admin 
> down using 'iplink set front_eth1 down'.Then the ping stoped working 
> and  'front-eth1' interface admin state and operational state on ATCA2 
> are now down where as the 'front_eth1' interface admin status and 
> operational status on the ATCA1 are still are up. Accoring to our 
> knowledge the 'front_eth1' interface operational status on ATCA1 
> should go down when the remote peers interface is made down.
>  
> Can you please let us know wether this is an issue or is it the valid 
> behaviour on the igb driver. If this is an issue can you please give 
> us some pointers where to check to find the root cause of this 
> problem.
>  
> Thanks
> Abhinay

Abhinay-

I have added Carolyn, since she is the igb maintainer.  I have also added the 
e1000-devel mailing list to open up this to a wider audience.

After taking down one of the interfaces, what is ethtool reporting for link 
both interfaces? (ethtool eth1)

Cheers,
Jeff
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