adf_pfvf_utils.h

 1/* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only) */
 2/* Copyright(c) 2021 Intel Corporation */
 3#ifndef ADF_PFVF_UTILS_H
 4#define ADF_PFVF_UTILS_H
 5
 6#include <linux/types.h>
 7#include "adf_pfvf_msg.h"
 8
 9/* How long to wait for far side to acknowledge receipt */
10#define ADF_PFVF_MSG_ACK_DELAY_US	4
11#define ADF_PFVF_MSG_ACK_MAX_DELAY_US	(1 * USEC_PER_SEC)
12
13u8 adf_pfvf_calc_blkmsg_crc(u8 const *buf, u8 buf_len);
14void adf_pfvf_crc_init(void);
15
16struct pfvf_field_format {
17	u8  offset;
18	u32 mask;
19};
20
21struct pfvf_csr_format {
22	struct pfvf_field_format type;
23	struct pfvf_field_format data;
24};
25
26u32 adf_pfvf_csr_msg_of(struct adf_accel_dev *accel_dev, struct pfvf_message msg,
27			const struct pfvf_csr_format *fmt);
28struct pfvf_message adf_pfvf_message_of(struct adf_accel_dev *accel_dev, u32 raw_msg,
29					const struct pfvf_csr_format *fmt);
30
31static inline u8 adf_vf_compat_checker(u8 vf_compat_ver)
32{
33	if (vf_compat_ver == 0)
34		return ADF_PF2VF_VF_INCOMPATIBLE;
35
36	if (vf_compat_ver <= ADF_PFVF_COMPAT_THIS_VERSION)
37		return ADF_PF2VF_VF_COMPATIBLE;
38
39	return ADF_PF2VF_VF_COMPAT_UNKNOWN;
40}
41
42#endif /* ADF_PFVF_UTILS_H */