[Intel-wired-lan] [Patch v5 13/18] ice: Check FDIR program status for AVF

[Wang, Haiyue]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces at osuosl.org> On Behalf Of Haiyue Wang
> Sent: Tuesday, March 9, 2021 11:08
> To: intel-wired-lan at lists.osuosl.org
> Cc: Liang, Cunming <cunming.liang at intel.com>; Cao, Yahui <yahui.cao at intel.com>; Zhang, Qi Z
> <qi.z.zhang at intel.com>
> Subject: [Intel-wired-lan] [Patch v5 13/18] ice: Check FDIR program status for AVF
> 
> From: Qi Zhang <qi.z.zhang at intel.com>
> 
> Enables returning FDIR completion status by checking the
> ctrl_vsi Rx queue descriptor value.
> 
> To enable returning FDIR completion status from ctrl_vsi Rx queue,
> COMP_Queue and COMP_Report of FDIR filter programming descriptor
> needs to be properly configured. After program request sent to ctrl_vsi
> Tx queue, ctrl_vsi Rx queue interrupt will be triggered and
> completion status will be returned.
> 
> Driver will first issue request in ice_vc_fdir_add_fltr(), then
> pass FDIR context to the background task in interrupt service routine
> ice_vc_fdir_irq_handler() and finally deal with them in
> ice_flush_fdir_ctx(). ice_flush_fdir_ctx() will check the descriptor's
> value, fdir context, and then send back virtual channel message to VF
> by calling ice_vc_add_fdir_fltr_post(). An additional timer will be
> setup in case of hardware interrupt timeout.
> 
> Signed-off-by: Yahui Cao <yahui.cao at intel.com>
> Signed-off-by: Brett Creeley <brett.creeley at intel.com>
> Signed-off-by: Jesse Brandeburg <jesse.brandeburg at intel.com>
> Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
> ---

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