xe_sriov_types.h

 1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2023 Intel Corporation
 4 */
 5
 6#ifndef _XE_SRIOV_TYPES_H_
 7#define _XE_SRIOV_TYPES_H_
 8
 9#include <linux/build_bug.h>
10
11/**
12 * VFID - Virtual Function Identifier
13 * @n: VF number
14 *
15 * Helper macro to represent Virtual Function (VF) Identifier.
16 * VFID(0) is used as alias to the PFID that represents Physical Function.
17 *
18 * Note: According to PCI spec, SR-IOV VF's numbers are 1-based (VF1, VF2, ...).
19 */
20#define VFID(n)		(n)
21#define PFID		VFID(0)
22
23/**
24 * enum xe_sriov_mode - SR-IOV mode
25 * @XE_SRIOV_MODE_NONE: bare-metal mode (non-virtualized)
26 * @XE_SRIOV_MODE_PF: SR-IOV Physical Function (PF) mode
27 * @XE_SRIOV_MODE_VF: SR-IOV Virtual Function (VF) mode
28 */
29enum xe_sriov_mode {
30	/*
31	 * Note: We don't use default enum value 0 to allow catch any too early
32	 * attempt of checking the SR-IOV mode prior to the actual mode probe.
33	 */
34	XE_SRIOV_MODE_NONE = 1,
35	XE_SRIOV_MODE_PF,
36	XE_SRIOV_MODE_VF,
37};
38static_assert(XE_SRIOV_MODE_NONE);
39
40#endif