eee.c
5.03 KB
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-only
#include "netlink.h"
#include "common.h"
#include "bitset.h"
#define EEE_MODES_COUNT \
(sizeof_field(struct ethtool_eee, supported) * BITS_PER_BYTE)
struct eee_req_info {
struct ethnl_req_info base;
};
struct eee_reply_data {
struct ethnl_reply_data base;
struct ethtool_eee eee;
};
#define EEE_REPDATA(__reply_base) \
container_of(__reply_base, struct eee_reply_data, base)
const struct nla_policy ethnl_eee_get_policy[] = {
[ETHTOOL_A_EEE_HEADER] =
NLA_POLICY_NESTED(ethnl_header_policy),
};
static int eee_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
struct genl_info *info)
{
struct eee_reply_data *data = EEE_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
int ret;
if (!dev->ethtool_ops->get_eee)
return -EOPNOTSUPP;
ret = ethnl_ops_begin(dev);
if (ret < 0)
return ret;
ret = dev->ethtool_ops->get_eee(dev, &data->eee);
ethnl_ops_complete(dev);
return ret;
}
static int eee_reply_size(const struct ethnl_req_info *req_base,
const struct ethnl_reply_data *reply_base)
{
bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
const struct eee_reply_data *data = EEE_REPDATA(reply_base);
const struct ethtool_eee *eee = &data->eee;
int len = 0;
int ret;
BUILD_BUG_ON(sizeof(eee->advertised) * BITS_PER_BYTE !=
EEE_MODES_COUNT);
BUILD_BUG_ON(sizeof(eee->lp_advertised) * BITS_PER_BYTE !=
EEE_MODES_COUNT);
/* MODES_OURS */
ret = ethnl_bitset32_size(&eee->advertised, &eee->supported,
EEE_MODES_COUNT, link_mode_names, compact);
if (ret < 0)
return ret;
len += ret;
/* MODES_PEERS */
ret = ethnl_bitset32_size(&eee->lp_advertised, NULL,
EEE_MODES_COUNT, link_mode_names, compact);
if (ret < 0)
return ret;
len += ret;
len += nla_total_size(sizeof(u8)) + /* _EEE_ACTIVE */
nla_total_size(sizeof(u8)) + /* _EEE_ENABLED */
nla_total_size(sizeof(u8)) + /* _EEE_TX_LPI_ENABLED */
nla_total_size(sizeof(u32)); /* _EEE_TX_LPI_TIMER */
return len;
}
static int eee_fill_reply(struct sk_buff *skb,
const struct ethnl_req_info *req_base,
const struct ethnl_reply_data *reply_base)
{
bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
const struct eee_reply_data *data = EEE_REPDATA(reply_base);
const struct ethtool_eee *eee = &data->eee;
int ret;
ret = ethnl_put_bitset32(skb, ETHTOOL_A_EEE_MODES_OURS,
&eee->advertised, &eee->supported,
EEE_MODES_COUNT, link_mode_names, compact);
if (ret < 0)
return ret;
ret = ethnl_put_bitset32(skb, ETHTOOL_A_EEE_MODES_PEER,
&eee->lp_advertised, NULL, EEE_MODES_COUNT,
link_mode_names, compact);
if (ret < 0)
return ret;
if (nla_put_u8(skb, ETHTOOL_A_EEE_ACTIVE, !!eee->eee_active) ||
nla_put_u8(skb, ETHTOOL_A_EEE_ENABLED, !!eee->eee_enabled) ||
nla_put_u8(skb, ETHTOOL_A_EEE_TX_LPI_ENABLED,
!!eee->tx_lpi_enabled) ||
nla_put_u32(skb, ETHTOOL_A_EEE_TX_LPI_TIMER, eee->tx_lpi_timer))
return -EMSGSIZE;
return 0;
}
const struct ethnl_request_ops ethnl_eee_request_ops = {
.request_cmd = ETHTOOL_MSG_EEE_GET,
.reply_cmd = ETHTOOL_MSG_EEE_GET_REPLY,
.hdr_attr = ETHTOOL_A_EEE_HEADER,
.req_info_size = sizeof(struct eee_req_info),
.reply_data_size = sizeof(struct eee_reply_data),
.prepare_data = eee_prepare_data,
.reply_size = eee_reply_size,
.fill_reply = eee_fill_reply,
};
/* EEE_SET */
const struct nla_policy ethnl_eee_set_policy[] = {
[ETHTOOL_A_EEE_HEADER] =
NLA_POLICY_NESTED(ethnl_header_policy),
[ETHTOOL_A_EEE_MODES_OURS] = { .type = NLA_NESTED },
[ETHTOOL_A_EEE_ENABLED] = { .type = NLA_U8 },
[ETHTOOL_A_EEE_TX_LPI_ENABLED] = { .type = NLA_U8 },
[ETHTOOL_A_EEE_TX_LPI_TIMER] = { .type = NLA_U32 },
};
int ethnl_set_eee(struct sk_buff *skb, struct genl_info *info)
{
struct ethnl_req_info req_info = {};
struct nlattr **tb = info->attrs;
const struct ethtool_ops *ops;
struct ethtool_eee eee = {};
struct net_device *dev;
bool mod = false;
int ret;
ret = ethnl_parse_header_dev_get(&req_info,
tb[ETHTOOL_A_EEE_HEADER],
genl_info_net(info), info->extack,
true);
if (ret < 0)
return ret;
dev = req_info.dev;
ops = dev->ethtool_ops;
ret = -EOPNOTSUPP;
if (!ops->get_eee || !ops->set_eee)
goto out_dev;
rtnl_lock();
ret = ethnl_ops_begin(dev);
if (ret < 0)
goto out_rtnl;
ret = ops->get_eee(dev, &eee);
if (ret < 0)
goto out_ops;
ret = ethnl_update_bitset32(&eee.advertised, EEE_MODES_COUNT,
tb[ETHTOOL_A_EEE_MODES_OURS],
link_mode_names, info->extack, &mod);
if (ret < 0)
goto out_ops;
ethnl_update_bool32(&eee.eee_enabled, tb[ETHTOOL_A_EEE_ENABLED], &mod);
ethnl_update_bool32(&eee.tx_lpi_enabled,
tb[ETHTOOL_A_EEE_TX_LPI_ENABLED], &mod);
ethnl_update_bool32(&eee.tx_lpi_timer, tb[ETHTOOL_A_EEE_TX_LPI_TIMER],
&mod);
ret = 0;
if (!mod)
goto out_ops;
ret = dev->ethtool_ops->set_eee(dev, &eee);
if (ret < 0)
goto out_ops;
ethtool_notify(dev, ETHTOOL_MSG_EEE_NTF, NULL);
out_ops:
ethnl_ops_complete(dev);
out_rtnl:
rtnl_unlock();
out_dev:
dev_put(dev);
return ret;
}