netdev - Re: [net-next 04/14] ixgbe: remove CIAA/D register reads from bad VF check

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Message-Id: <20141205.204956.1468623374943582606.davem@davemloft.net>
Date:	Fri, 05 Dec 2014 20:49:56 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	jeffrey.t.kirsher@...el.com
Cc:	emil.s.tantilov@...el.com, netdev@...r.kernel.org,
	nhorman@...hat.com, sassmann@...hat.com, jogreene@...hat.com,
	alex.williamson@...hat.com
Subject: Re: [net-next 04/14] ixgbe: remove CIAA/D register reads from bad
 VF check

From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Date: Fri,  5 Dec 2014 09:52:43 -0800

> From: Emil Tantilov <emil.s.tantilov@...el.com>
> 
> Accessing the CIAA/D register can block access to the PCI config space.
> 
> This patch removes the read/write operations to the CIAA/D registers
> and makes use of standard kernel functions for accessing the PCI config
> space.
> 
> In addition it moves ixgbevf_check_for_bad_vf() into the watchdog subtask
> which reduces the frequency of the checks.
> 
> CC: Alex Williamson <alex.williamson@...hat.com>
> Reported-by: Alex Williamson <alex.williamson@...hat.com>
> Signed-off-by: Emil Tantilov <emil.s.tantilov@...el.com>
> Tested-by: Aaron Brown <aaron.f.brown@...el.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>

Alex Willaimson stated that he'd like to see this for -stable, but I'm warning
right now that a change not appropriate for 'net' is not approperiate for
'-stable' either.
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