netdev - Re: 3.10.0-rc2 mlx4 not receiving packets for some multicast groups

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Date:	Sat, 25 May 2013 06:41:05 +0300
From:	Or Gerlitz <or.gerlitz@...il.com>
To:	Shawn Bohrer <shawn.bohrer@...il.com>
Cc:	netdev@...r.kernel.org, Hadar Hen Zion <hadarh@...lanox.com>,
	Amir Vadai <amirv@...lanox.com>
Subject: Re: 3.10.0-rc2 mlx4 not receiving packets for some multicast groups

On Fri, May 24, 2013 at 7:34 PM, Shawn Bohrer <shawn.bohrer@...il.com> wrote:
> On Fri, May 24, 2013 at 10:49:31AM -0500, Shawn Bohrer wrote:
> > I just started testing the 3.10 kernel, previously we were on 3.4 so
> > there is a fairly large jump.  I've additionally applied the following
> > four patches to the 3.10.0-rc2 kernel that I'm testing:
> >
> > https://patchwork.kernel.org/patch/2484651/
> > https://patchwork.kernel.org/patch/2484671/
> > https://patchwork.kernel.org/patch/2484681/
> > https://patchwork.kernel.org/patch/2484641/
> >
>> I don't know if those patches are related to my issues or not but I
>> plan on trying to reproduce without them soon.

> I've reverted the four patches above from my test kernel and still see
> the issue so they don't appear to be the cause.

Hi Shawn,

So 3.4 works, 3.10-rc2 breaks? its indeed a fairly large gap, maybe
try to bisec that? just to make sure, did use touch any mlx4
non-default config? specifically did you turn DMFS (Device Managed
Flow Steering) on using the  set the mlx4_core module param of
log_num_mgm_entry_size or you were using B0 steering (the default)?

Or.
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