netdev - RE: [BUG net-next] bnx2x: all traffic comes to RX queue 0

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Date:	Tue, 12 Oct 2010 11:18:23 -0700
From:	"Vladislav Zolotarov" <vladz@...adcom.com>
To:	"Eric Dumazet" <eric.dumazet@...il.com>,
	"Dmitry Kravkov" <dmitry@...adcom.com>
cc:	netdev <netdev@...r.kernel.org>,
	"Michael Chan" <mchan@...adcom.com>,
	"Eilon Greenstein" <eilong@...adcom.com>,
	"David Miller" <davem@...emloft.net>,
	"Yaniv Rosner" <yaniv.rosner@...adcom.com>
Subject: RE: [BUG net-next] bnx2x: all traffic comes to RX queue 0

Thanks, Eric. Dima has already found a problem and we are running 
a regression to verify nothing else is broken after the RSS is 
brought back to life.

If nothing goes wrong Dima will send a patch in an hour or so...

Thanks again for the catch.
vlad

> -----Original Message-----
> From: netdev-owner@...r.kernel.org [mailto:netdev-
> owner@...r.kernel.org] On Behalf Of Eric Dumazet
> Sent: Tuesday, October 12, 2010 8:12 PM
> To: Dmitry Kravkov
> Cc: netdev; Michael Chan; Eilon Greenstein; David Miller; Vladislav
> Zolotarov; Yaniv Rosner
> Subject: RE: [BUG net-next] bnx2x: all traffic comes to RX queue 0
> 
> Le mardi 12 octobre 2010 à 09:20 -0700, Dmitry Kravkov a écrit :
> > Eric,
> >
> > I will take a look
> >
> 
> Thanks ! Here is the bisection result
> 
> # git bisect bad
> 523224a3b3cd407ce4e6731a087194e13a90db18 is the first bad commit
> commit 523224a3b3cd407ce4e6731a087194e13a90db18
> Author: Dmitry Kravkov <dmitry@...adcom.com>
> Date:   Wed Oct 6 03:23:26 2010 +0000
> 
>     bnx2x, cnic, bnx2i: use new FW/HSI
> 
>     This is the new FW HSI blob and the relevant definitions without
> logic changes.
>     It also included code adaptation for new HSI. New features are not
> enabled.
> 
>     New FW/HSI includes:
>     - Support for 57712 HW
>     - Future support for VF (not used)
>     - Improvements in FW interrupts scheme
>     - FW FCoE hooks (stubs for future usage)
> 
>     Signed-off-by: Dmitry Kravkov <dmitry@...adcom.com>
>     Signed-off-by: Michael Chan <mchan@...adcom.com>
>     Signed-off-by: Eilon Greenstein <eilong@...adcom.com>
>     Signed-off-by: David S. Miller <davem@...emloft.net>
> 
> :040000 040000 8931a748ae89487466d99e6121a3965131e3a201
> fed2be49565ca291203a865554a0e071a2a9c3fb M	drivers
> :040000 040000 2ff6a5c290ca7e9dc339b7213f49c341f4fc5822
> 82c0a7117b58f538a8b49891c5524e3537c5ae66 M	firmware
> 
> 
> # git bisect log
> git bisect start '--' 'drivers/net/bnx2x'
> # bad: [b9e9b15966e35f3b4a8d3820cac460505552f72c] Merge branch 'master'
> of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
> git bisect bad b9e9b15966e35f3b4a8d3820cac460505552f72c
> # good: [9fe6206f400646a2322096b56c59891d530e8d51] Linux 2.6.35
> git bisect good 9fe6206f400646a2322096b56c59891d530e8d51
> # good: [b7737c9be9d3e894d1a4375c52f5f47789475f26] bnx2x: Split PHY
> functions
> git bisect good b7737c9be9d3e894d1a4375c52f5f47789475f26
> # good: [8681dc3abd54e845a2effab441921b4c4457c241] bnx2x: Moved
> enabling of MSI to the bnx2x_set_num_queues()
> git bisect good 8681dc3abd54e845a2effab441921b4c4457c241
> # bad: [c518cd1c7aca2e2a65edcf4fa5ce4160d59878c2] bnx2x: remove unused
> fields in main driver structure
> git bisect bad c518cd1c7aca2e2a65edcf4fa5ce4160d59878c2
> # bad: [fb3bff178e722fe88b5ab02319c9636da0980e25] bnx2x: rename MF
> related fields
> git bisect bad fb3bff178e722fe88b5ab02319c9636da0980e25
> # good: [560131f313ea9b9439742138289b6f68d61531ec] bnx2x: create folder
> for bnx2x firmware files
> git bisect good 560131f313ea9b9439742138289b6f68d61531ec
> # bad: [523224a3b3cd407ce4e6731a087194e13a90db18] bnx2x, cnic, bnx2i:
> use new FW/HSI
> git bisect bad 523224a3b3cd407ce4e6731a087194e13a90db18
> 
> 
> --
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