From: Nils Holland <nholland@tisys.org>
To: Prashant Sreedharan <prashant@broadcom.com>
Cc: davem@davemloft.net, netdev@vger.kernel.org,
linux-pci@vger.kernel.org, marcelo.leitner@gmail.com,
bhelgaas@google.com, rajatxjain@gmail.com,
Michael Chan <mchan@broadcom.com>
Subject: Re: [PATCH net]tg3: tg3_disable_ints using uninitialized mailbox value to disable interrupts
Date: Sat, 20 Dec 2014 23:16:07 +0100 [thread overview]
Message-ID: <20141220221606.GA2591@teela.fritz.box> (raw)
In-Reply-To: <1419106577-12891-1-git-send-email-prashant@broadcom.com>
On Sat, Dec 20, 2014 at 12:16:17PM -0800, Prashant Sreedharan wrote:
>
> This driver bug was exposed because of the commit a7877b17a667 (PCI: Check only
> the Vendor ID to identify Configuration Request Retry). Also this issue is only
> seen in older generation chipsets like 5722 because config space write to offset
> 0 from driver is possible.
>
> Fixed by initializing the interrupt mailbox registers before calling tg3_halt.
>
> Please queue for -stable.
I gave this patch a try and can confirm what was to be expected: It
fixes the issue and the network interface is once again working
properly on my system. Thus, I guess the issue is adequately solved.
Thanks to everyone involved, especially to Marcelo for additional
debugging and the guys at Broadcom for the quick fix!
Greetings,
Nils
next prev parent reply other threads:[~2014-12-20 22:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-20 20:16 [PATCH net]tg3: tg3_disable_ints using uninitialized mailbox value to disable interrupts Prashant Sreedharan
2014-12-20 22:16 ` Nils Holland [this message]
2014-12-22 14:06 ` Marcelo Ricardo Leitner
2014-12-22 21:13 ` David Miller
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