netdev - Re: [PATCH net-next] tg3: Override clock, link aware and link idle mode during NVRAM dump

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Message-Id: <20140524.234007.2092002212094016123.davem@davemloft.net>
Date:	Sat, 24 May 2014 23:40:07 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	prashant@...adcom.com
Cc:	netdev@...r.kernel.org, mchan@...adcom.com
Subject: Re: [PATCH net-next] tg3: Override clock, link aware and link idle
 mode during NVRAM dump

From: Prashant Sreedharan <prashant@...adcom.com>
Date: Sat, 24 May 2014 01:32:09 -0700

> When cable is not present the clock speed of some of the devices is
> reduced based upon power saving mode setting in NVRAM. Due to this
> NVRAM reads take long time to complete as a result CPU soft lockup
> message is seen. Fix is to override clock, disable link aware and link
> idle modes before NVRAM reads and restore them back after the reads
> are complete. During this period also check if the thread needs to be
> rescheduled and if there are any signals to handle.
> 
> Also decrease the NVRAM command execution timeout value to 1ms.
> 
> Signed-off-by: Prashant Sreedharan <prashant@...adcom.com>
> Signed-off-by: Michael Chan <mchan@...adcom.com>

Applied to net-next, thanks.
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