[Intel-wired-lan] [next PATCH v5 08/12] igb: Add support for ethtool private flag to allow use of legacy Rx

[Brown, Aaron F]

> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at lists.osuosl.org] On
> Behalf Of Alexander Duyck
> Sent: Monday, February 6, 2017 6:27 PM
> To: intel-wired-lan at lists.osuosl.org; Kirsher, Jeffrey T
> <jeffrey.t.kirsher at intel.com>
> Subject: [Intel-wired-lan] [next PATCH v5 08/12] igb: Add support for ethtool
> private flag to allow use of legacy Rx
> 
> From: Alexander Duyck <alexander.h.duyck at intel.com>
> 
> Since there are potential drawbacks to the new Rx allocation approach I
> thought it best to add a "chicken bit" so that we can turn the feature off
> if in the event that a problem is found.
> 
> It also provides a means of validating the legacy Rx path in the event that
> we are forced to fall back.  At some point in the future when we are
> convinced we don't need it anymore we might be able to drop the legacy-rx
> flag.
> 
> Signed-off-by: Alexander Duyck <alexander.h.duyck at intel.com>
> ---
> v4: Move patch up so that we add support for RX_LEGACY flag before we add
>     support for the new approach.
>     Added actual creation of the RX_LEGACY flag to this patch.
> 
>  drivers/net/ethernet/intel/igb/igb.h         |    1 +
>  drivers/net/ethernet/intel/igb/igb_ethtool.c |   48
> ++++++++++++++++++++++++++
>  2 files changed, 49 insertions(+)

Tested-by: Aaron Brown <aaron.f.brown at intel.com>