Re: [E1000-devel] Bug report E1000 driver bonding in 802.3ad mode can not go beyond 1GB/s throughput

[Support T. <su...@ca...>]

Hi John,

On the e1000.sf.net, there is only E1000 driver 8.0.6 September 8, 2008,
which is the same we
are using.  Jay said he fixed a big in 802.3ad couple weeks ago. that
version driver is not on
the site.  Where can we get that updated driver?

Thx so much,

RD

-----Original Message-----
From: Ronciak, John [mailto:joh...@in...] 
Sent: Friday, March 27, 2009 1:38 PM
To: su...@ca...; 'Jay Vosburgh'
Cc: e10...@li...
Subject: [work] RE: [E1000-devel] Bug report E1000 driver bonding in 802.3ad
mode can not go beyond 1GB/s throughput

Our (Intel) latest drivers are on our http://e1000.sf.net site including he
igb driver.  When you ask about the driver below I assume you are talking
about bonding right?

Please let us know how this goes.  I haven't found our testing lead to ask
about this since our last mail but I track him down and ask.

Cheers,
John
-----------------------------------------------------------
"...that your people will judge you on what you can build, not what you
destroy.", B. Obama, 2009 
 

>-----Original Message-----
>From: Support Team [mailto:su...@ca...] 
>Sent: Friday, March 27, 2009 1:25 PM
>To: 'Jay Vosburgh'
>Cc: Ronciak, John; e10...@li...
>Subject: Re: [E1000-devel] Bug report E1000 driver bonding in 
>802.3ad mode can not go beyond 1GB/s throughput
>
>Hi Jay,
>
>Thanks for writing back regarding this matter.  We use latest 
>2.4 kernel
>from kernel.org. For E1000 driver,
>we download it from Intel web site.  If you have newer driver 
>somewhere we
>can download. We will download that
>and give it a try.
>
>Basically in our setup, both 82546 NIC based setup and 82573 
>based setup
>using the same os and same kernel,
>bonding configuration. the only difference in software is the 
>driver: E1000E
>vs. E1000. E1000E driver
>working well, E1000 does not.  We also plan to test igb driver 
>bonding for
>the newest Intel NIC chip.
>
>Thanks for your help!
>Wayne
>
>-----Original Message-----
>From: Jay Vosburgh [mailto:fu...@us...] 
>Sent: Friday, March 27, 2009 12:44 PM
>To: su...@ca...
>Cc: 'Ronciak, John'; e10...@li...
>Subject: [work] Re: [E1000-devel] Bug report E1000 driver 
>bonding in 802.3ad
>mode can not go beyond 1GB/s throughput
>
>Support Team <su...@ca...> wrote:
>
>>Yes, same VLAN setup in the software does not work for 82546 
>chip.  The
>>setup in software are identical,
>>other than 82546 load E1000 driver and 82573 load E1000E 
>driver, nothing
>>else changed in software or
>>test environment.  If we can see 82546/MT adapter can get 
>2GB/s in bond
>>mode, we will be happy.
>
>	Some bonding things to check:
>
>ip route show
>
>	Make sure no interfaces (the slaves) have routes that supercede
>the route for the bond itself.
>
>cat /proc/net/bonding/bond0	[or whatever bond device you have]
>
>	Make sure the options you think you have match what bonding is
>seeing (particularly the xmit_hash_policy if your throughput test is
>many connections but not many discrete peers).
>
>	Also in the proc file, make sure the 802.3ad is aggregating
>properly; are all of the slaves in the active aggregator?
>
>	Lastly, what distro (cat /etc/issue) and kernel version are you
>running (uname -a)?
>
>	I fixed a bug in 802.3ad related to aggregator assignments a
>couple of weeks ago.  If you've got a sufficiently recent kernel (the
>bug was introduced late last year), you might be seeing that (if the
>slaves don't aggregate properly).  I observed the bug messing 
>up 802.3ad
>aggregations with my e1000 devices, so it might be that.
>
>	-J
>
>---
>	-Jay Vosburgh, IBM Linux Technology Center, fu...@us...
>
>
>