[Intel-wired-lan] [PATCH iwl-next v7 04/12] iavf: add support for negotiating flexible RXDID format

[Simon Horman]

On Tue, Jun 04, 2024 at 09:13:52AM -0400, Mateusz Polchlopek wrote:
> From: Jacob Keller <jacob.e.keller at intel.com>
> 
> Enable support for VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC, to enable the VF
> driver the ability to determine what Rx descriptor formats are
> available. This requires sending an additional message during
> initialization and reset, the VIRTCHNL_OP_GET_SUPPORTED_RXDIDS. This
> operation requests the supported Rx descriptor IDs available from the
> PF.
> 
> This is treated the same way that VLAN V2 capabilities are handled. Add
> a new set of extended capability flags, used to process send and receipt
> of the VIRTCHNL_OP_GET_SUPPORTED_RXDIDS message.
> 
> This ensures we finish negotiating for the supported descriptor formats
> prior to beginning configuration of receive queues.
> 
> This change stores the supported format bitmap into the iavf_adapter
> structure. Additionally, if VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC is enabled
> by the PF, we need to make sure that the Rx queue configuration
> specifies the format.
> 
> Signed-off-by: Jacob Keller <jacob.e.keller at intel.com>
> Reviewed-by: Wojciech Drewek <wojciech.drewek at intel.com>
> Co-developed-by: Mateusz Polchlopek <mateusz.polchlopek at intel.com>
> Signed-off-by: Mateusz Polchlopek <mateusz.polchlopek at intel.com>

Reviewed-by: Simon Horman <horms at kernel.org>