blob: 147fe03ca979b9d32e6cb314e6fc9e5fd1e14bdf (
plain)
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
186
187
188
189
190
|
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2021 Gerhard Engleder <gerhard@engleder-embedded.com> */
#ifndef _TSNEP_H
#define _TSNEP_H
#include "tsnep_hw.h"
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/etherdevice.h>
#include <linux/phy.h>
#include <linux/ethtool.h>
#include <linux/net_tstamp.h>
#include <linux/ptp_clock_kernel.h>
#include <linux/miscdevice.h>
#define TSNEP "tsnep"
#define TSNEP_RING_SIZE 256
#define TSNEP_RING_ENTRIES_PER_PAGE (PAGE_SIZE / TSNEP_DESC_SIZE)
#define TSNEP_RING_PAGE_COUNT (TSNEP_RING_SIZE / TSNEP_RING_ENTRIES_PER_PAGE)
#define TSNEP_QUEUES 1
struct tsnep_gcl {
void __iomem *addr;
u64 base_time;
u64 cycle_time;
u64 cycle_time_extension;
struct tsnep_gcl_operation operation[TSNEP_GCL_COUNT];
int count;
u64 change_limit;
u64 start_time;
bool change;
};
struct tsnep_tx_entry {
struct tsnep_tx_desc *desc;
struct tsnep_tx_desc_wb *desc_wb;
dma_addr_t desc_dma;
bool owner_user_flag;
u32 properties;
struct sk_buff *skb;
size_t len;
DEFINE_DMA_UNMAP_ADDR(dma);
};
struct tsnep_tx {
struct tsnep_adapter *adapter;
void __iomem *addr;
void *page[TSNEP_RING_PAGE_COUNT];
dma_addr_t page_dma[TSNEP_RING_PAGE_COUNT];
/* TX ring lock */
spinlock_t lock;
struct tsnep_tx_entry entry[TSNEP_RING_SIZE];
int write;
int read;
u32 owner_counter;
int increment_owner_counter;
u32 packets;
u32 bytes;
u32 dropped;
};
struct tsnep_rx_entry {
struct tsnep_rx_desc *desc;
struct tsnep_rx_desc_wb *desc_wb;
dma_addr_t desc_dma;
u32 properties;
struct sk_buff *skb;
size_t len;
DEFINE_DMA_UNMAP_ADDR(dma);
};
struct tsnep_rx {
struct tsnep_adapter *adapter;
void __iomem *addr;
int queue_index;
void *page[TSNEP_RING_PAGE_COUNT];
dma_addr_t page_dma[TSNEP_RING_PAGE_COUNT];
struct tsnep_rx_entry entry[TSNEP_RING_SIZE];
int read;
u32 owner_counter;
int increment_owner_counter;
u32 packets;
u32 bytes;
u32 dropped;
u32 multicast;
};
struct tsnep_queue {
struct tsnep_adapter *adapter;
struct tsnep_tx *tx;
struct tsnep_rx *rx;
struct napi_struct napi;
u32 irq_mask;
};
struct tsnep_adapter {
struct net_device *netdev;
u8 mac_address[ETH_ALEN];
struct mii_bus *mdiobus;
bool suppress_preamble;
phy_interface_t phy_mode;
struct phy_device *phydev;
int msg_enable;
struct platform_device *pdev;
struct device *dmadev;
void __iomem *addr;
int irq;
bool gate_control;
/* gate control lock */
struct mutex gate_control_lock;
bool gate_control_active;
struct tsnep_gcl gcl[2];
int next_gcl;
struct hwtstamp_config hwtstamp_config;
struct ptp_clock *ptp_clock;
struct ptp_clock_info ptp_clock_info;
/* ptp clock lock */
spinlock_t ptp_lock;
int num_tx_queues;
struct tsnep_tx tx[TSNEP_MAX_QUEUES];
int num_rx_queues;
struct tsnep_rx rx[TSNEP_MAX_QUEUES];
int num_queues;
struct tsnep_queue queue[TSNEP_MAX_QUEUES];
};
extern const struct ethtool_ops tsnep_ethtool_ops;
int tsnep_ptp_init(struct tsnep_adapter *adapter);
void tsnep_ptp_cleanup(struct tsnep_adapter *adapter);
int tsnep_ptp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
int tsnep_tc_init(struct tsnep_adapter *adapter);
void tsnep_tc_cleanup(struct tsnep_adapter *adapter);
int tsnep_tc_setup(struct net_device *netdev, enum tc_setup_type type,
void *type_data);
#if IS_ENABLED(CONFIG_TSNEP_SELFTESTS)
int tsnep_ethtool_get_test_count(void);
void tsnep_ethtool_get_test_strings(u8 *data);
void tsnep_ethtool_self_test(struct net_device *netdev,
struct ethtool_test *eth_test, u64 *data);
#else
static inline int tsnep_ethtool_get_test_count(void)
{
return -EOPNOTSUPP;
}
static inline void tsnep_ethtool_get_test_strings(u8 *data)
{
/* not enabled */
}
static inline void tsnep_ethtool_self_test(struct net_device *dev,
struct ethtool_test *eth_test,
u64 *data)
{
/* not enabled */
}
#endif /* CONFIG_TSNEP_SELFTESTS */
void tsnep_get_system_time(struct tsnep_adapter *adapter, u64 *time);
#endif /* _TSNEP_H */
|
