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
|
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/net_tstamp.h>
#include "netlink.h"
#include "common.h"
#include "bitset.h"
struct tsinfo_req_info {
struct ethnl_req_info base;
};
struct tsinfo_reply_data {
struct ethnl_reply_data base;
struct ethtool_ts_info ts_info;
struct ethtool_ts_stats stats;
};
#define TSINFO_REPDATA(__reply_base) \
container_of(__reply_base, struct tsinfo_reply_data, base)
#define ETHTOOL_TS_STAT_CNT \
(__ETHTOOL_A_TS_STAT_CNT - (ETHTOOL_A_TS_STAT_UNSPEC + 1))
const struct nla_policy ethnl_tsinfo_get_policy[] = {
[ETHTOOL_A_TSINFO_HEADER] =
NLA_POLICY_NESTED(ethnl_header_policy_stats),
};
static int tsinfo_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
const struct genl_info *info)
{
struct tsinfo_reply_data *data = TSINFO_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
int ret;
ret = ethnl_ops_begin(dev);
if (ret < 0)
return ret;
if (req_base->flags & ETHTOOL_FLAG_STATS) {
ethtool_stats_init((u64 *)&data->stats,
sizeof(data->stats) / sizeof(u64));
if (dev->ethtool_ops->get_ts_stats)
dev->ethtool_ops->get_ts_stats(dev, &data->stats);
}
ret = __ethtool_get_ts_info(dev, &data->ts_info);
ethnl_ops_complete(dev);
return ret;
}
static int tsinfo_reply_size(const struct ethnl_req_info *req_base,
const struct ethnl_reply_data *reply_base)
{
const struct tsinfo_reply_data *data = TSINFO_REPDATA(reply_base);
bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
const struct ethtool_ts_info *ts_info = &data->ts_info;
int len = 0;
int ret;
BUILD_BUG_ON(__SOF_TIMESTAMPING_CNT > 32);
BUILD_BUG_ON(__HWTSTAMP_TX_CNT > 32);
BUILD_BUG_ON(__HWTSTAMP_FILTER_CNT > 32);
if (ts_info->so_timestamping) {
ret = ethnl_bitset32_size(&ts_info->so_timestamping, NULL,
__SOF_TIMESTAMPING_CNT,
sof_timestamping_names, compact);
if (ret < 0)
return ret;
len += ret; /* _TSINFO_TIMESTAMPING */
}
if (ts_info->tx_types) {
ret = ethnl_bitset32_size(&ts_info->tx_types, NULL,
__HWTSTAMP_TX_CNT,
ts_tx_type_names, compact);
if (ret < 0)
return ret;
len += ret; /* _TSINFO_TX_TYPES */
}
if (ts_info->rx_filters) {
ret = ethnl_bitset32_size(&ts_info->rx_filters, NULL,
__HWTSTAMP_FILTER_CNT,
ts_rx_filter_names, compact);
if (ret < 0)
return ret;
len += ret; /* _TSINFO_RX_FILTERS */
}
if (ts_info->phc_index >= 0)
len += nla_total_size(sizeof(u32)); /* _TSINFO_PHC_INDEX */
if (req_base->flags & ETHTOOL_FLAG_STATS)
len += nla_total_size(0) + /* _TSINFO_STATS */
nla_total_size_64bit(sizeof(u64)) * ETHTOOL_TS_STAT_CNT;
return len;
}
static int tsinfo_put_stat(struct sk_buff *skb, u64 val, u16 attrtype)
{
if (val == ETHTOOL_STAT_NOT_SET)
return 0;
if (nla_put_uint(skb, attrtype, val))
return -EMSGSIZE;
return 0;
}
static int tsinfo_put_stats(struct sk_buff *skb,
const struct ethtool_ts_stats *stats)
{
struct nlattr *nest;
nest = nla_nest_start(skb, ETHTOOL_A_TSINFO_STATS);
if (!nest)
return -EMSGSIZE;
if (tsinfo_put_stat(skb, stats->tx_stats.pkts,
ETHTOOL_A_TS_STAT_TX_PKTS) ||
tsinfo_put_stat(skb, stats->tx_stats.lost,
ETHTOOL_A_TS_STAT_TX_LOST) ||
tsinfo_put_stat(skb, stats->tx_stats.err,
ETHTOOL_A_TS_STAT_TX_ERR))
goto err_cancel;
nla_nest_end(skb, nest);
return 0;
err_cancel:
nla_nest_cancel(skb, nest);
return -EMSGSIZE;
}
static int tsinfo_fill_reply(struct sk_buff *skb,
const struct ethnl_req_info *req_base,
const struct ethnl_reply_data *reply_base)
{
const struct tsinfo_reply_data *data = TSINFO_REPDATA(reply_base);
bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
const struct ethtool_ts_info *ts_info = &data->ts_info;
int ret;
if (ts_info->so_timestamping) {
ret = ethnl_put_bitset32(skb, ETHTOOL_A_TSINFO_TIMESTAMPING,
&ts_info->so_timestamping, NULL,
__SOF_TIMESTAMPING_CNT,
sof_timestamping_names, compact);
if (ret < 0)
return ret;
}
if (ts_info->tx_types) {
ret = ethnl_put_bitset32(skb, ETHTOOL_A_TSINFO_TX_TYPES,
&ts_info->tx_types, NULL,
__HWTSTAMP_TX_CNT,
ts_tx_type_names, compact);
if (ret < 0)
return ret;
}
if (ts_info->rx_filters) {
ret = ethnl_put_bitset32(skb, ETHTOOL_A_TSINFO_RX_FILTERS,
&ts_info->rx_filters, NULL,
__HWTSTAMP_FILTER_CNT,
ts_rx_filter_names, compact);
if (ret < 0)
return ret;
}
if (ts_info->phc_index >= 0 &&
nla_put_u32(skb, ETHTOOL_A_TSINFO_PHC_INDEX, ts_info->phc_index))
return -EMSGSIZE;
if (req_base->flags & ETHTOOL_FLAG_STATS &&
tsinfo_put_stats(skb, &data->stats))
return -EMSGSIZE;
return 0;
}
const struct ethnl_request_ops ethnl_tsinfo_request_ops = {
.request_cmd = ETHTOOL_MSG_TSINFO_GET,
.reply_cmd = ETHTOOL_MSG_TSINFO_GET_REPLY,
.hdr_attr = ETHTOOL_A_TSINFO_HEADER,
.req_info_size = sizeof(struct tsinfo_req_info),
.reply_data_size = sizeof(struct tsinfo_reply_data),
.prepare_data = tsinfo_prepare_data,
.reply_size = tsinfo_reply_size,
.fill_reply = tsinfo_fill_reply,
};
|
