Re: [Intel-wired-lan] [PATCH iwl-next v10 01/14] virtchnl: add support for enabling PTP on iAVF

[Alexander Lobakin <aleksander.lobakin@intel.com>]

From: Wojciech Drewek <wojciech.drewek@intel.com>
Date: Wed, 21 Aug 2024 14:15:26 +0200

> From: Jacob Keller <jacob.e.keller@intel.com>
> 
> Add support for allowing a VF to enable PTP feature - Rx timestamps
> 
> The new capability is gated by VIRTCHNL_VF_CAP_PTP, which must be
> set by the VF to request access to the new operations. In addition, the
> VIRTCHNL_OP_1588_PTP_CAPS command is used to determine the specific
> capabilities available to the VF.
> 
> This support includes the following additional capabilities:
> 
> * Rx timestamps enabled in the Rx queues (when using flexible advanced
>   descriptors)
> * Read access to PHC time over virtchnl using
>   VIRTCHNL_OP_1588_PTP_GET_TIME
> 
> Extra space is reserved in most structures to allow for future
> extension (like set clock, Tx timestamps).  Additional opcode numbers
> are reserved and space in the virtchnl_ptp_caps structure is
> specifically set aside for this.
> Additionally, each structure has some space reserved for future
> extensions to allow some flexibility.
> 
> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
> Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
> Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
> Reviewed-by: Simon Horman <horms@kernel.org>

Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>

> Signed-off-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
> Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>

Thanks,
Olek