1/* SPDX-License-Identifier: GPL-2.0+ */
2// Copyright (c) 2021 Hisilicon Limited.
3
4#ifndef __HCLGE_PTP_H
5#define __HCLGE_PTP_H
6
7#include <linux/ptp_clock_kernel.h>
8#include <linux/net_tstamp.h>
9#include <linux/types.h>
10
11struct hclge_dev;
12struct ifreq;
13
14#define HCLGE_PTP_REG_OFFSET	0x29000
15
16#define HCLGE_PTP_TX_TS_SEQID_REG	0x0
17#define HCLGE_PTP_TX_TS_NSEC_REG	0x4
18#define HCLGE_PTP_TX_TS_NSEC_MASK	GENMASK(29, 0)
19#define HCLGE_PTP_TX_TS_SEC_L_REG	0x8
20#define HCLGE_PTP_TX_TS_SEC_H_REG	0xC
21#define HCLGE_PTP_TX_TS_SEC_H_MASK	GENMASK(15, 0)
22#define HCLGE_PTP_TX_TS_CNT_REG		0x30
23
24#define HCLGE_PTP_TIME_SEC_H_REG	0x50
25#define HCLGE_PTP_TIME_SEC_H_MASK	GENMASK(15, 0)
26#define HCLGE_PTP_TIME_SEC_L_REG	0x54
27#define HCLGE_PTP_TIME_NSEC_REG		0x58
28#define HCLGE_PTP_TIME_NSEC_MASK	GENMASK(29, 0)
29#define HCLGE_PTP_TIME_NSEC_NEG		BIT(31)
30#define HCLGE_PTP_TIME_SYNC_REG		0x5C
31#define HCLGE_PTP_TIME_SYNC_EN		BIT(0)
32#define HCLGE_PTP_TIME_ADJ_REG		0x60
33#define HCLGE_PTP_TIME_ADJ_EN		BIT(0)
34#define HCLGE_PTP_CYCLE_QUO_REG		0x64
35#define HCLGE_PTP_CYCLE_QUO_MASK	GENMASK(7, 0)
36#define HCLGE_PTP_CYCLE_DEN_REG		0x68
37#define HCLGE_PTP_CYCLE_NUM_REG		0x6C
38#define HCLGE_PTP_CYCLE_CFG_REG		0x70
39#define HCLGE_PTP_CYCLE_ADJ_EN		BIT(0)
40#define HCLGE_PTP_CUR_TIME_SEC_H_REG	0x74
41#define HCLGE_PTP_CUR_TIME_SEC_L_REG	0x78
42#define HCLGE_PTP_CUR_TIME_NSEC_REG	0x7C
43
44#define HCLGE_PTP_CYCLE_ADJ_MAX		500000000
45#define HCLGE_PTP_SEC_H_OFFSET		32u
46#define HCLGE_PTP_SEC_L_MASK		GENMASK(31, 0)
47
48#define HCLGE_PTP_FLAG_EN		0
49#define HCLGE_PTP_FLAG_TX_EN		1
50#define HCLGE_PTP_FLAG_RX_EN		2
51
52struct hclge_ptp_cycle {
53	u32 quo;
54	u32 numer;
55	u32 den;
56};
57
58struct hclge_ptp {
59	struct hclge_dev *hdev;
60	struct ptp_clock *clock;
61	struct sk_buff *tx_skb;
62	unsigned long flags;
63	void __iomem *io_base;
64	struct ptp_clock_info info;
65	struct hwtstamp_config ts_cfg;
66	spinlock_t lock;	/* protects ptp registers */
67	u32 ptp_cfg;
68	u32 last_tx_seqid;
69	struct hclge_ptp_cycle cycle;
70	unsigned long tx_start;
71	unsigned long tx_cnt;
72	unsigned long tx_skipped;
73	unsigned long tx_cleaned;
74	unsigned long last_rx;
75	unsigned long rx_cnt;
76	unsigned long tx_timeout;
77};
78
79struct hclge_ptp_int_cmd {
80#define HCLGE_PTP_INT_EN_B	BIT(0)
81
82	u8 int_en;
83	u8 rsvd[23];
84};
85
86enum hclge_ptp_udp_type {
87	HCLGE_PTP_UDP_NOT_TYPE,
88	HCLGE_PTP_UDP_P13F_TYPE,
89	HCLGE_PTP_UDP_P140_TYPE,
90	HCLGE_PTP_UDP_FULL_TYPE,
91};
92
93enum hclge_ptp_msg_type {
94	HCLGE_PTP_MSG_TYPE_V2_L2,
95	HCLGE_PTP_MSG_TYPE_V2,
96	HCLGE_PTP_MSG_TYPE_V2_EVENT,
97};
98
99enum hclge_ptp_msg0_type {
100	HCLGE_PTP_MSG0_V2_DELAY_REQ = 1,
101	HCLGE_PTP_MSG0_V2_PDELAY_REQ,
102	HCLGE_PTP_MSG0_V2_DELAY_RESP,
103	HCLGE_PTP_MSG0_V2_EVENT = 0xF,
104};
105
106#define HCLGE_PTP_MSG1_V2_DEFAULT	1
107
108struct hclge_ptp_cfg_cmd {
109#define HCLGE_PTP_EN_B			BIT(0)
110#define HCLGE_PTP_TX_EN_B		BIT(1)
111#define HCLGE_PTP_RX_EN_B		BIT(2)
112#define HCLGE_PTP_UDP_EN_SHIFT		3
113#define HCLGE_PTP_UDP_EN_MASK		GENMASK(4, 3)
114#define HCLGE_PTP_MSG_TYPE_SHIFT	8
115#define HCLGE_PTP_MSG_TYPE_MASK		GENMASK(9, 8)
116#define HCLGE_PTP_MSG1_SHIFT		16
117#define HCLGE_PTP_MSG1_MASK		GENMASK(19, 16)
118#define HCLGE_PTP_MSG0_SHIFT		24
119#define HCLGE_PTP_MSG0_MASK		GENMASK(27, 24)
120
121	__le32 cfg;
122	u8 rsvd[20];
123};
124
125static inline struct hclge_dev *hclge_ptp_get_hdev(struct ptp_clock_info *info)
126{
127	struct hclge_ptp *ptp = container_of(info, struct hclge_ptp, info);
128
129	return ptp->hdev;
130}
131
132bool hclge_ptp_set_tx_info(struct hnae3_handle *handle, struct sk_buff *skb);
133void hclge_ptp_clean_tx_hwts(struct hclge_dev *hdev);
134void hclge_ptp_get_rx_hwts(struct hnae3_handle *handle, struct sk_buff *skb,
135			   u32 nsec, u32 sec);
136int hclge_ptp_get_cfg(struct hclge_dev *hdev, struct ifreq *ifr);
137int hclge_ptp_set_cfg(struct hclge_dev *hdev, struct ifreq *ifr);
138int hclge_ptp_init(struct hclge_dev *hdev);
139void hclge_ptp_uninit(struct hclge_dev *hdev);
140int hclge_ptp_get_ts_info(struct hnae3_handle *handle,
141			  struct ethtool_ts_info *info);
142int hclge_ptp_cfg_qry(struct hclge_dev *hdev, u32 *cfg);
143#endif
144