[Intel-wired-lan] [PATCH S28 8/9] ice: change default number of receive descriptors

Bowers, AndrewX andrewx.bowers at intel.com
Wed Aug 28 17:05:34 UTC 2019


> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at osuosl.org] On
> Behalf Of Tony Nguyen
> Sent: Tuesday, August 27, 2019 6:14 AM
> To: intel-wired-lan at lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH S28 8/9] ice: change default number of
> receive descriptors
> 
> From: Jesse Brandeburg <jesse.brandeburg at intel.com>
> 
> The driver should start out with a reasonable number of descriptors that can
> prevent drops due to a CPU being in a power management state.
> Change the default number of descriptors to 2048.
> The user can always change the value at runtime.  Transmit descriptor counts
> are not modified because they don't need to change due to the speed of the
> interface, or for power managed CPUs, but the code is simplified to a fixed
> value for the transmit default.
> 
> Signed-off-by: Jesse Brandeburg <jesse.brandeburg at intel.com>
> ---
>  drivers/net/ethernet/intel/ice/ice.h | 19 ++-----------------
>  1 file changed, 2 insertions(+), 17 deletions(-)

Tested-by: Andrew Bowers <andrewx.bowers at intel.com>




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