netdev - RE: [net-next 08/11] ixgbe: walk pci-e bus to find minimum width

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Message-ID: <02874ECE860811409154E81DA85FBB5855B20959@ORSMSX106.amr.corp.intel.com>
Date:	Mon, 15 Apr 2013 20:48:08 +0000
From:	"Keller, Jacob E" <jacob.e.keller@...el.com>
To:	Or Gerlitz <or.gerlitz@...il.com>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>
CC:	"davem@...emloft.net" <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"gospo@...hat.com" <gospo@...hat.com>,
	"sassmann@...hat.com" <sassmann@...hat.com>
Subject: RE: [net-next 08/11] ixgbe: walk pci-e bus to find minimum width

> -----Original Message-----
> From: Or Gerlitz [mailto:or.gerlitz@...il.com]
> Sent: Saturday, April 13, 2013 2:28 PM
> To: Kirsher, Jeffrey T
> Cc: davem@...emloft.net; Keller, Jacob E; netdev@...r.kernel.org;
> gospo@...hat.com; sassmann@...hat.com
> Subject: Re: [net-next 08/11] ixgbe: walk pci-e bus to find minimum
> width
> 
> On Fri, Apr 12, 2013 at 2:24 PM, Jeff Kirsher
> <jeffrey.t.kirsher@...el.com> wrote:
> > From: Jacob Keller <jacob.e.keller@...el.com>
> >
> > This patch adds a function which enables the ixgbe driver to walk up
> the PCI bus
> > for the device and query the PCI config space for the bus width at each
> > point. This enables the driver to determine what the minimum PCIe
> width is for
> > the device, and warn the user if it is not enough.
> 
> If possible without too much pain, I think we may want to add this
> somehow as generic function which would allow other drivers to enjoy
> from this logic too, agree?
> 
> Or.

I will look into re-writing this as a generic function.

Thanks!

- Jake

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