1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
// SPDX-License-Identifier: GPL-2.0-only
/*
// Copyright (c) 2022 Pengutronix, Oleksij Rempel <kernel@pengutronix.de>
*/
#ifndef _LINUX_PSE_CONTROLLER_H
#define _LINUX_PSE_CONTROLLER_H
#include <linux/ethtool.h>
#include <linux/list.h>
#include <uapi/linux/ethtool.h>
struct phy_device;
struct pse_controller_dev;
/**
* struct pse_control_config - PSE control/channel configuration.
*
* @podl_admin_control: set PoDL PSE admin control as described in
* IEEE 802.3-2018 30.15.1.2.1 acPoDLPSEAdminControl
* @c33_admin_control: set PSE admin control as described in
* IEEE 802.3-2022 30.9.1.2.1 acPSEAdminControl
*/
struct pse_control_config {
enum ethtool_podl_pse_admin_state podl_admin_control;
enum ethtool_c33_pse_admin_state c33_admin_control;
};
/**
* struct pse_control_status - PSE control/channel status.
*
* @podl_admin_state: operational state of the PoDL PSE
* functions. IEEE 802.3-2018 30.15.1.1.2 aPoDLPSEAdminState
* @podl_pw_status: power detection status of the PoDL PSE.
* IEEE 802.3-2018 30.15.1.1.3 aPoDLPSEPowerDetectionStatus:
* @c33_admin_state: operational state of the PSE
* functions. IEEE 802.3-2022 30.9.1.1.2 aPSEAdminState
* @c33_pw_status: power detection status of the PSE.
* IEEE 802.3-2022 30.9.1.1.5 aPSEPowerDetectionStatus:
*/
struct pse_control_status {
enum ethtool_podl_pse_admin_state podl_admin_state;
enum ethtool_podl_pse_pw_d_status podl_pw_status;
enum ethtool_c33_pse_admin_state c33_admin_state;
enum ethtool_c33_pse_pw_d_status c33_pw_status;
};
/**
* struct pse_controller_ops - PSE controller driver callbacks
*
* @ethtool_get_status: get PSE control status for ethtool interface
* @ethtool_set_config: set PSE control configuration over ethtool interface
* @setup_pi_matrix: setup PI matrix of the PSE controller
*/
struct pse_controller_ops {
int (*ethtool_get_status)(struct pse_controller_dev *pcdev,
unsigned long id, struct netlink_ext_ack *extack,
struct pse_control_status *status);
int (*ethtool_set_config)(struct pse_controller_dev *pcdev,
unsigned long id, struct netlink_ext_ack *extack,
const struct pse_control_config *config);
int (*setup_pi_matrix)(struct pse_controller_dev *pcdev);
};
struct module;
struct device_node;
struct of_phandle_args;
struct pse_control;
/* PSE PI pairset pinout can either be Alternative A or Alternative B */
enum pse_pi_pairset_pinout {
ALTERNATIVE_A,
ALTERNATIVE_B,
};
/**
* struct pse_pi_pairset - PSE PI pairset entity describing the pinout
* alternative ant its phandle
*
* @pinout: description of the pinout alternative
* @np: device node pointer describing the pairset phandle
*/
struct pse_pi_pairset {
enum pse_pi_pairset_pinout pinout;
struct device_node *np;
};
/**
* struct pse_pi - PSE PI (Power Interface) entity as described in
* IEEE 802.3-2022 145.2.4
*
* @pairset: table of the PSE PI pinout alternative for the two pairset
* @np: device node pointer of the PSE PI node
*/
struct pse_pi {
struct pse_pi_pairset pairset[2];
struct device_node *np;
};
/**
* struct pse_controller_dev - PSE controller entity that might
* provide multiple PSE controls
* @ops: a pointer to device specific struct pse_controller_ops
* @owner: kernel module of the PSE controller driver
* @list: internal list of PSE controller devices
* @pse_control_head: head of internal list of requested PSE controls
* @dev: corresponding driver model device struct
* @of_pse_n_cells: number of cells in PSE line specifiers
* @nr_lines: number of PSE controls in this controller device
* @lock: Mutex for serialization access to the PSE controller
* @types: types of the PSE controller
* @pi: table of PSE PIs described in this controller device
* @no_of_pse_pi: flag set if the pse_pis devicetree node is not used
*/
struct pse_controller_dev {
const struct pse_controller_ops *ops;
struct module *owner;
struct list_head list;
struct list_head pse_control_head;
struct device *dev;
int of_pse_n_cells;
unsigned int nr_lines;
struct mutex lock;
enum ethtool_pse_types types;
struct pse_pi *pi;
bool no_of_pse_pi;
};
#if IS_ENABLED(CONFIG_PSE_CONTROLLER)
int pse_controller_register(struct pse_controller_dev *pcdev);
void pse_controller_unregister(struct pse_controller_dev *pcdev);
struct device;
int devm_pse_controller_register(struct device *dev,
struct pse_controller_dev *pcdev);
struct pse_control *of_pse_control_get(struct device_node *node);
void pse_control_put(struct pse_control *psec);
int pse_ethtool_get_status(struct pse_control *psec,
struct netlink_ext_ack *extack,
struct pse_control_status *status);
int pse_ethtool_set_config(struct pse_control *psec,
struct netlink_ext_ack *extack,
const struct pse_control_config *config);
bool pse_has_podl(struct pse_control *psec);
bool pse_has_c33(struct pse_control *psec);
#else
static inline struct pse_control *of_pse_control_get(struct device_node *node)
{
return ERR_PTR(-ENOENT);
}
static inline void pse_control_put(struct pse_control *psec)
{
}
static inline int pse_ethtool_get_status(struct pse_control *psec,
struct netlink_ext_ack *extack,
struct pse_control_status *status)
{
return -ENOTSUPP;
}
static inline int pse_ethtool_set_config(struct pse_control *psec,
struct netlink_ext_ack *extack,
const struct pse_control_config *config)
{
return -ENOTSUPP;
}
static inline bool pse_has_podl(struct pse_control *psec)
{
return false;
}
static inline bool pse_has_c33(struct pse_control *psec)
{
return false;
}
#endif
#endif
|
