linux-kernel - RE: be2net failed to initialize regression

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Message-ID: <CF9D1877D81D214CB0CA0669EFAE020C0F259965@CMEXMB1.ad.emulex.com>
Date:	Fri, 8 Mar 2013 10:22:24 +0000
From:	"Perla, Sathya" <Sathya.Perla@...lex.Com>
To:	CAI Qian <caiqian@...hat.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:	Ivan Vecera <ivecera@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: RE: be2net failed to initialize regression

> -----Original Message-----
> From: netdev-owner@...r.kernel.org [mailto:netdev-owner@...r.kernel.org]
> On Behalf Of CAI Qian
> 
> Emulex CNA card failed to initialize using 3.8 and the latest upstream kernel,
> 
> [   87.479859] be2net 0000:04:00.0: POST timeout; stage=0xc911
> [   87.515978] be2net 0000:04:00.0: Emulex OneConnect initialization failed
> [   87.557130] be2net: probe of 0000:04:00.0 failed with error -1
> 
> lspci output,
> 
> 04:00.0 Ethernet controller: Emulex Corporation OneConnect 10Gb NIC (rev 02)
> 04:00.1 Ethernet controller: Emulex Corporation OneConnect 10Gb NIC (rev 02)
> 
> 04:00.1 Ethernet controller: Emulex Corporation OneConnect 10Gb NIC (rev 02)
>         Subsystem: Hewlett-Packard Company NC551i Dual Port FlexFabric 10Gb
> Adapter
> 
> Confirmed no such problem using 3.7 kernel. Reproduced every time and still
> bisecting. Just want to give an early head-up to see if anyone saw sometime
> obvious.

Could you give me the FW version (ethtool -i) of the adapter (after be2net successfully
probes in a 3.7 kernel.)

If the FW version is as old as 2.x, then the culprit commit that broke compatibility with old FW versions
on some (BE2) chips I is:
commit 1bc8e7e4f36c0c19dd7dea29e7c248b7c6ef3a15
be2net: fix access to SEMAPHORE reg

The fix for this is (still on David's net tree I guess):
commit c5b3ad4c67989c778e4753be4f91dc7193a04d21
be2net: use CSR-BAR SEMAPHORE reg for BE2/BE3

Dave, can these 2 commits be queued for stable too:
commit1: c5b3ad4c67989c778e4753be4f91dc7193a04d21
commit2: 1bc8e7e4f36c0c19dd7dea29e7c248b7c6ef3a15

thanks,
-Sathya