drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.h

   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
  11 struct hclge_dev;
  12 struct 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
  52 struct hclge_ptp_cycle {
  53         u32 quo;
  54         u32 numer;
  55         u32 den;
  56 };
  57
  58 struct 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
  79 struct hclge_ptp_int_cmd {
  80 #define HCLGE_PTP_INT_EN_B      BIT(0)
  81
  82         u8 int_en;
  83         u8 rsvd[23];
  84 };
  85
  86 enum 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
  93 enum 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
  99 enum 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
 108 struct 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
 125 static 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
 132 bool hclge_ptp_set_tx_info(struct hnae3_handle *handle, struct sk_buff *skb);
 133 void hclge_ptp_clean_tx_hwts(struct hclge_dev *hdev);
 134 void hclge_ptp_get_rx_hwts(struct hnae3_handle *handle, struct sk_buff *skb,
 135                            u32 nsec, u32 sec);
 136 int hclge_ptp_get_cfg(struct hclge_dev *hdev, struct ifreq *ifr);
 137 int hclge_ptp_set_cfg(struct hclge_dev *hdev, struct ifreq *ifr);
 138 int hclge_ptp_init(struct hclge_dev *hdev);
 139 void hclge_ptp_uninit(struct hclge_dev *hdev);
 140 int hclge_ptp_get_ts_info(struct hnae3_handle *handle,
 141                           struct kernel_ethtool_ts_info *info);
 142 int hclge_ptp_cfg_qry(struct hclge_dev *hdev, u32 *cfg);
 143 #endif