netdev - Re: bnx2 breaks Dell R815 BMC IPMI since 4.8

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Message-ID: <583D2C8C.9070902@inria.fr>
Date:   Tue, 29 Nov 2016 08:21:48 +0100
From:   Brice Goglin <Brice.Goglin@...ia.fr>
To:     Baoquan He <bhe@...hat.com>
Cc:     Linux Network Development list <netdev@...r.kernel.org>
Subject: Re: bnx2 breaks Dell R815 BMC IPMI since 4.8

I only tested 4.8.5 and 4.9-rc5 unfortunately, they came later. I'll
ping my distro.
Thanks for the quick reply!
Brice



Le 29/11/2016 08:02, Baoquan He a écrit :
> Sorry, Brice. This has been reported by people, and it has been fixed by
> later post. The commits within linus's tree are:
>
> commit 6df77862f63f389df3b1ad879738e04440d7385d
> Author: Baoquan He <bhe@...hat.com>
> Date:   Sun Nov 13 13:01:33 2016 +0800
>
>     bnx2: Wait for in-flight DMA to complete at probe stage
>
> commit 5d0d4b91bf627f14f95167b738d524156c9d440b
> Author: Baoquan He <bhe@...hat.com>
> Date:   Sun Nov 13 13:01:32 2016 +0800
>
>     Revert "bnx2: Reset device during driver initialization"
>     
>     This reverts commit 3e1be7ad2d38c6bd6aeef96df9bd0a7822f4e51c.
>
> And I believe both of them also are picked up into 4.8-stable kernel.
> Please have a way to get them.
>
> Sorry again!
>
> Thanks
> Baoquan
>
>
> On 11/29/16 at 07:57am, Brice Goglin wrote:
>> Hello
>>
>> My Dell PowerEdge R815 doesn't have IPMI anymore when I boot a 4.8
>> kernel, the BMC doesn't even ping anymore. Its Ethernet devices are 4 of
>> those:
>>
>> 01:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20)
>> 	DeviceName: Embedded NIC 1                          
>> 	Subsystem: Dell NetXtreme II BCM5709 Gigabit Ethernet
>> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
>> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>> 	Latency: 0, Cache Line Size: 64 bytes
>> 	Interrupt: pin A routed to IRQ 42
>> 	Region 0: Memory at e6000000 (64-bit, non-prefetchable) [size=32M]
>> 	Capabilities: <access denied>
>> 	Kernel driver in use: bnx2
>> 	Kernel modules: bnx2
>>
>> The only change in bnx2 between 4.7 and 4.8 appears to be this one:
>>
>> commit 3e1be7ad2d38c6bd6aeef96df9bd0a7822f4e51c
>> Author: Baoquan He <bhe@...hat.com>
>> Date:   Fri Sep 9 22:43:12 2016 +0800
>>
>>     bnx2: Reset device during driver initialization
>>
>> Could you patch actually break the BMC? What do I need to further debug
>> this issue?
>>
>> Thanks
>> Brice
>>