From: Chris Friesen <chris.friesen@genband•com>
To: Andy Gospodarek <gospo@redhat•com>
Cc: Jay Vosburgh <fubar@us•ibm.com>, Jiri Pirko <jiri@resnulli•us>,
netdev <netdev@vger•kernel.org>,
andy@greyhouse•net
Subject: Re: bonding and SR-IOV -- do we need arp_validation for loadbalancing too?
Date: Fri, 27 Jul 2012 10:15:45 -0600 [thread overview]
Message-ID: <5012BEB1.9030306@genband.com> (raw)
In-Reply-To: <20120727145514.GB7323@quad.redhat.com>
On 07/27/2012 08:55 AM, Andy Gospodarek wrote:
> On Tue, Jul 24, 2012 at 03:38:11PM -0600, Chris Friesen wrote:
>> In our environment (ATCA shelf) the switches have been customized to
>> handle some of this stuff so arpmon does work reliably with xor.
> Good.
>
>> In the general case it sounds like the "PF bonding ignores packets
>> from VFs" is a better bet then.
> It really might be. There are some registers in the 82599 datasheets
> that are not used by the ixgbe driver, but might help you in this area.
>
> If you take a look at PFVML2FLT and PFUTA and their current status on
> your system you might be able to put something together that gives you
> what you want.
I think it's simpler than that. By my reading of the 82599 datasheet,
the LB bit in the status field of the rx descriptor will indicate if the
packet came from a VM.
> It would likely mean you have to run a custom ixgbe-driver, but that
> doesn't sound like much of an issue.
While I'd like to avoid it if possible, we've already had to tweak the
driver for other things.
The complication is that we've got a few different types of hardware and
they're not all running 82599. I'm trying to figure out if the other
hardware can do something similar.
Chris
next prev parent reply other threads:[~2012-07-27 16:16 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-24 15:57 bonding and SR-IOV -- do we need arp_validation for loadbalancing too? Chris Friesen
2012-07-24 16:42 ` Jiri Pirko
2012-07-24 18:13 ` Jay Vosburgh
2012-07-24 20:18 ` Chris Friesen
2012-07-24 20:38 ` Chris Friesen
2012-07-24 20:49 ` Jay Vosburgh
2012-07-24 21:15 ` Nicolas de Pesloüan
2012-07-24 21:38 ` Chris Friesen
2012-07-27 14:55 ` Andy Gospodarek
2012-07-27 16:15 ` Chris Friesen [this message]
2012-07-27 17:13 ` Andy Gospodarek
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5012BEB1.9030306@genband.com \
--to=chris.friesen@genband$(echo .)com \
--cc=andy@greyhouse$(echo .)net \
--cc=fubar@us$(echo .)ibm.com \
--cc=gospo@redhat$(echo .)com \
--cc=jiri@resnulli$(echo .)us \
--cc=netdev@vger$(echo .)kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox