/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (c) 2013-2022, Intel Corporation. */
#ifndef _VIRTCHNL_H_
#define _VIRTCHNL_H_
/* Description:
* This header file describes the Virtual Function (VF) - Physical Function
* (PF) communication protocol used by the drivers for all devices starting
* from our 40G product line
*
* Admin queue buffer usage:
* desc->opcode is always aqc_opc_send_msg_to_pf
* flags, retval, datalen, and data addr are all used normally.
* The Firmware copies the cookie fields when sending messages between the
* PF and VF, but uses all other fields internally. Due to this limitation,
* we must send all messages as "indirect", i.e. using an external buffer.
*
* All the VSI indexes are relative to the VF. Each VF can have maximum of
* three VSIs. All the queue indexes are relative to the VSI. Each VF can
* have a maximum of sixteen queues for all of its VSIs.
*
* The PF is required to return a status code in v_ret
