[Intel-wired-lan] [PATCH S38 08/15] ice: Handle LAN overflow event for VF queues

Bowers, AndrewX andrewx.bowers at intel.com
Mon Jan 27 23:15:28 UTC 2020


> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at osuosl.org] On
> Behalf Of Tony Nguyen
> Sent: Wednesday, January 22, 2020 7:22 AM
> To: intel-wired-lan at lists.osuosl.org
> Subject: [Intel-wired-lan] [PATCH S38 08/15] ice: Handle LAN overflow event
> for VF queues
> 
> From: Brett Creeley <brett.creeley at intel.com>
> 
> Currently we are not handling LAN overflow events. There can be cases
> where LAN overflow events occur on VF queues, especially with Link Flow
> Control (LFC) enabled on the controlling PF. In order to recover from the LAN
> overflow event caused by a VF we need to determine if the queue belongs
> to a VF and reset that VF accordingly.
> 
> The struct ice_aqc_event_lan_overflow returns a copy of the GLDCB_RTCTQ
> register, which tells us what the queue index is in the global/device space.
> The global queue index needs to first be converted to a PF space queue
> index and then it can be used to find if a VF owns it.
> 
> Signed-off-by: Brett Creeley <brett.creeley at intel.com>
> Signed-off-by: Tony Nguyen <anthony.l.nguyen at intel.com>
> ---
>  .../net/ethernet/intel/ice/ice_adminq_cmd.h   | 11 ++++
>  .../net/ethernet/intel/ice/ice_hw_autogen.h   |  2 +
>  drivers/net/ethernet/intel/ice/ice_main.c     |  3 +
>  .../net/ethernet/intel/ice/ice_virtchnl_pf.c  | 66 +++++++++++++++++++
> .../net/ethernet/intel/ice/ice_virtchnl_pf.h  |  4 ++
>  5 files changed, 86 insertions(+)


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




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