drivers/net/ethernet/aquantia/atlantic/aq_ptp.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* Atlantic Network Driver
   3  *
   4  * Copyright (C) 2014-2019 aQuantia Corporation
   5  * Copyright (C) 2019-2020 Marvell International Ltd.
   6  */
   7
   8 /* File aq_ptp.h: Declaration of PTP functions.
   9  */
  10 #ifndef AQ_PTP_H
  11 #define AQ_PTP_H
  12
  13 #include <linux/net_tstamp.h>
  14
  15 #include "aq_ring.h"
  16
  17 #define PTP_8TC_RING_IDX             8
  18 #define PTP_4TC_RING_IDX            16
  19 #define PTP_HWST_RING_IDX           31
  20
  21 /* Index must to be 8 (8 TCs) or 16 (4 TCs).
  22  * It depends from Traffic Class mode.
  23  */
  24 static inline unsigned int aq_ptp_ring_idx(const enum aq_tc_mode tc_mode)
  25 {
  26         if (tc_mode == AQ_TC_MODE_8TCS)
  27                 return PTP_8TC_RING_IDX;
  28
  29         return PTP_4TC_RING_IDX;
  30 }
  31
  32 #if IS_REACHABLE(CONFIG_PTP_1588_CLOCK)
  33
  34 /* Common functions */
  35 int aq_ptp_init(struct aq_nic_s *aq_nic, unsigned int idx_vec);
  36
  37 void aq_ptp_unregister(struct aq_nic_s *aq_nic);
  38 void aq_ptp_free(struct aq_nic_s *aq_nic);
  39
  40 int aq_ptp_irq_alloc(struct aq_nic_s *aq_nic);
  41 void aq_ptp_irq_free(struct aq_nic_s *aq_nic);
  42
  43 int aq_ptp_ring_alloc(struct aq_nic_s *aq_nic);
  44 void aq_ptp_ring_free(struct aq_nic_s *aq_nic);
  45
  46 int aq_ptp_ring_init(struct aq_nic_s *aq_nic);
  47 int aq_ptp_ring_start(struct aq_nic_s *aq_nic);
  48 void aq_ptp_ring_stop(struct aq_nic_s *aq_nic);
  49 void aq_ptp_ring_deinit(struct aq_nic_s *aq_nic);
  50
  51 void aq_ptp_service_task(struct aq_nic_s *aq_nic);
  52
  53 void aq_ptp_tm_offset_set(struct aq_nic_s *aq_nic, unsigned int mbps);
  54
  55 void aq_ptp_clock_init(struct aq_nic_s *aq_nic);
  56
  57 /* Traffic processing functions */
  58 int aq_ptp_xmit(struct aq_nic_s *aq_nic, struct sk_buff *skb);
  59 void aq_ptp_tx_hwtstamp(struct aq_nic_s *aq_nic, u64 timestamp);
  60
  61 /* Must be to check available of PTP before call */
  62 void aq_ptp_hwtstamp_config_get(struct aq_ptp_s *aq_ptp,
  63                                 struct hwtstamp_config *config);
  64 int aq_ptp_hwtstamp_config_set(struct aq_ptp_s *aq_ptp,
  65                                struct hwtstamp_config *config);
  66
  67 /* Return either ring is belong to PTP or not*/
  68 bool aq_ptp_ring(struct aq_nic_s *aq_nic, struct aq_ring_s *ring);
  69
  70 u16 aq_ptp_extract_ts(struct aq_nic_s *aq_nic, struct sk_buff *skb, u8 *p,
  71                       unsigned int len);
  72
  73 struct ptp_clock *aq_ptp_get_ptp_clock(struct aq_ptp_s *aq_ptp);
  74
  75 int aq_ptp_link_change(struct aq_nic_s *aq_nic);
  76
  77 /* PTP ring statistics */
  78 int aq_ptp_get_ring_cnt(struct aq_nic_s *aq_nic, const enum atl_ring_type ring_type);
  79 u64 *aq_ptp_get_stats(struct aq_nic_s *aq_nic, u64 *data);
  80
  81 #else
  82
  83 static inline int aq_ptp_init(struct aq_nic_s *aq_nic, unsigned int idx_vec)
  84 {
  85         return 0;
  86 }
  87
  88 static inline void aq_ptp_unregister(struct aq_nic_s *aq_nic) {}
  89
  90 static inline void aq_ptp_free(struct aq_nic_s *aq_nic)
  91 {
  92 }
  93
  94 static inline int aq_ptp_irq_alloc(struct aq_nic_s *aq_nic)
  95 {
  96         return 0;
  97 }
  98
  99 static inline void aq_ptp_irq_free(struct aq_nic_s *aq_nic)
 100 {
 101 }
 102
 103 static inline int aq_ptp_ring_alloc(struct aq_nic_s *aq_nic)
 104 {
 105         return 0;
 106 }
 107
 108 static inline void aq_ptp_ring_free(struct aq_nic_s *aq_nic) {}
 109
 110 static inline int aq_ptp_ring_init(struct aq_nic_s *aq_nic)
 111 {
 112         return 0;
 113 }
 114
 115 static inline int aq_ptp_ring_start(struct aq_nic_s *aq_nic)
 116 {
 117         return 0;
 118 }
 119
 120 static inline void aq_ptp_ring_stop(struct aq_nic_s *aq_nic) {}
 121 static inline void aq_ptp_ring_deinit(struct aq_nic_s *aq_nic) {}
 122 static inline void aq_ptp_service_task(struct aq_nic_s *aq_nic) {}
 123 static inline void aq_ptp_tm_offset_set(struct aq_nic_s *aq_nic,
 124                                         unsigned int mbps) {}
 125 static inline void aq_ptp_clock_init(struct aq_nic_s *aq_nic) {}
 126 static inline int aq_ptp_xmit(struct aq_nic_s *aq_nic, struct sk_buff *skb)
 127 {
 128         return -EOPNOTSUPP;
 129 }
 130
 131 static inline void aq_ptp_tx_hwtstamp(struct aq_nic_s *aq_nic, u64 timestamp) {}
 132 static inline void aq_ptp_hwtstamp_config_get(struct aq_ptp_s *aq_ptp,
 133                                               struct hwtstamp_config *config) {}
 134 static inline int aq_ptp_hwtstamp_config_set(struct aq_ptp_s *aq_ptp,
 135                                              struct hwtstamp_config *config)
 136 {
 137         return 0;
 138 }
 139
 140 static inline bool aq_ptp_ring(struct aq_nic_s *aq_nic, struct aq_ring_s *ring)
 141 {
 142         return false;
 143 }
 144
 145 static inline u16 aq_ptp_extract_ts(struct aq_nic_s *aq_nic,
 146                                     struct sk_buff *skb, u8 *p,
 147                                     unsigned int len)
 148 {
 149         return 0;
 150 }
 151
 152 static inline struct ptp_clock *aq_ptp_get_ptp_clock(struct aq_ptp_s *aq_ptp)
 153 {
 154         return NULL;
 155 }
 156
 157 static inline int aq_ptp_link_change(struct aq_nic_s *aq_nic)
 158 {
 159         return 0;
 160 }
 161 #endif
 162
 163 #endif /* AQ_PTP_H */