tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * HiSilicon PCIe Trace and Tuning (PTT) support
4 * Copyright (c) 2022 HiSilicon Technologies Co., Ltd.
5 */
6
7#ifndef INCLUDE__HISI_PTT_PKT_DECODER_H__
8#define INCLUDE__HISI_PTT_PKT_DECODER_H__
9
10#include <stddef.h>
11#include <stdint.h>
12
13#define HISI_PTT_8DW_CHECK_MASK GENMASK(31, 11)
14#define HISI_PTT_IS_8DW_PKT GENMASK(31, 11)
15#define HISI_PTT_MAX_SPACE_LEN 10
16#define HISI_PTT_FIELD_LENTH 4
17
18enum hisi_ptt_pkt_type {
19 HISI_PTT_4DW_PKT,
20 HISI_PTT_8DW_PKT,
21 HISI_PTT_PKT_MAX
22};
23
24static int hisi_ptt_pkt_size[] = {
25 [HISI_PTT_4DW_PKT] = 16,
26 [HISI_PTT_8DW_PKT] = 32,
27};
28
29int hisi_ptt_pkt_desc(const unsigned char *buf, int pos, enum hisi_ptt_pkt_type type);
30
31#endif