1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Stubs for the Network PHY library
4 */
5
6#include <linux/rtnetlink.h>
7
8struct ethtool_eth_phy_stats;
9struct ethtool_link_ext_stats;
10struct ethtool_phy_stats;
11struct kernel_hwtstamp_config;
12struct netlink_ext_ack;
13struct phy_device;
14
15#if IS_ENABLED(CONFIG_PHYLIB)
16
17extern const struct phylib_stubs *phylib_stubs;
18
19struct phylib_stubs {
20 int (*hwtstamp_get)(struct phy_device *phydev,
21 struct kernel_hwtstamp_config *config);
22 int (*hwtstamp_set)(struct phy_device *phydev,
23 struct kernel_hwtstamp_config *config,
24 struct netlink_ext_ack *extack);
25 void (*get_phy_stats)(struct phy_device *phydev,
26 struct ethtool_eth_phy_stats *phy_stats,
27 struct ethtool_phy_stats *phydev_stats);
28 void (*get_link_ext_stats)(struct phy_device *phydev,
29 struct ethtool_link_ext_stats *link_stats);
30};
31
32static inline int phy_hwtstamp_get(struct phy_device *phydev,
33 struct kernel_hwtstamp_config *config)
34{
35 /* phylib_register_stubs() and phylib_unregister_stubs()
36 * also run under rtnl_lock().
37 */
38 ASSERT_RTNL();
39
40 if (!phylib_stubs)
41 return -EOPNOTSUPP;
42
43 return phylib_stubs->hwtstamp_get(phydev, config);
44}
45
46static inline int phy_hwtstamp_set(struct phy_device *phydev,
47 struct kernel_hwtstamp_config *config,
48 struct netlink_ext_ack *extack)
49{
50 /* phylib_register_stubs() and phylib_unregister_stubs()
51 * also run under rtnl_lock().
52 */
53 ASSERT_RTNL();
54
55 if (!phylib_stubs)
56 return -EOPNOTSUPP;
57
58 return phylib_stubs->hwtstamp_set(phydev, config, extack);
59}
60
61static inline void phy_ethtool_get_phy_stats(struct phy_device *phydev,
62 struct ethtool_eth_phy_stats *phy_stats,
63 struct ethtool_phy_stats *phydev_stats)
64{
65 ASSERT_RTNL();
66
67 if (!phylib_stubs)
68 return;
69
70 phylib_stubs->get_phy_stats(phydev, phy_stats, phydev_stats);
71}
72
73static inline void phy_ethtool_get_link_ext_stats(struct phy_device *phydev,
74 struct ethtool_link_ext_stats *link_stats)
75{
76 ASSERT_RTNL();
77
78 if (!phylib_stubs)
79 return;
80
81 phylib_stubs->get_link_ext_stats(phydev, link_stats);
82}
83
84#else
85
86static inline int phy_hwtstamp_get(struct phy_device *phydev,
87 struct kernel_hwtstamp_config *config)
88{
89 return -EOPNOTSUPP;
90}
91
92static inline int phy_hwtstamp_set(struct phy_device *phydev,
93 struct kernel_hwtstamp_config *config,
94 struct netlink_ext_ack *extack)
95{
96 return -EOPNOTSUPP;
97}
98
99static inline void phy_ethtool_get_phy_stats(struct phy_device *phydev,
100 struct ethtool_eth_phy_stats *phy_stats,
101 struct ethtool_phy_stats *phydev_stats)
102{
103}
104
105static inline void phy_ethtool_get_link_ext_stats(struct phy_device *phydev,
106 struct ethtool_link_ext_stats *link_stats)
107{
108}
109
110#endif
111

source code of linux/include/linux/phylib_stubs.h