[Intel-wired-lan] [PATCH S39 08/15] ice: Support XDP UMEM wake up mechanism

[Bowers, AndrewX]

> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at osuosl.org] On
> Behalf Of Tony Nguyen
> Sent: Monday, January 27, 2020 12:59 AM
> To: intel-wired-lan at lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH S39 08/15] ice: Support XDP UMEM wake
> up mechanism
> 
> From: Krzysztof Kazimierczak <krzysztof.kazimierczak at intel.com>
> 
> Add support for a new AF_XDP feature that has already been introduced in
> upstreamed Intel NIC drivers. If a user space application signals that it might
> sleep using the new bind flag XDP_USE_NEED_WAKEUP, the driver will then
> set this flag if it has no more buffers on the NIC Rx ring and yield to the
> application. For Tx, it will set the flag if it has no outstanding Tx completion
> interrupts and return to the application.
> 
> Signed-off-by: Krzysztof Kazimierczak <krzysztof.kazimierczak at intel.com>
> ---
>  drivers/net/ethernet/intel/ice/ice_xsk.c | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)

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