1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | |
3 | #include "netlink.h" |
4 | #include "common.h" |
5 | #include "bitset.h" |
6 | |
7 | struct eee_req_info { |
8 | struct ethnl_req_info base; |
9 | }; |
10 | |
11 | struct eee_reply_data { |
12 | struct ethnl_reply_data base; |
13 | struct ethtool_keee eee; |
14 | }; |
15 | |
16 | #define EEE_REPDATA(__reply_base) \ |
17 | container_of(__reply_base, struct eee_reply_data, base) |
18 | |
19 | const struct nla_policy ethnl_eee_get_policy[] = { |
20 | [ETHTOOL_A_EEE_HEADER] = |
21 | NLA_POLICY_NESTED(ethnl_header_policy), |
22 | }; |
23 | |
24 | static int eee_prepare_data(const struct ethnl_req_info *req_base, |
25 | struct ethnl_reply_data *reply_base, |
26 | const struct genl_info *info) |
27 | { |
28 | struct eee_reply_data *data = EEE_REPDATA(reply_base); |
29 | struct net_device *dev = reply_base->dev; |
30 | struct ethtool_keee *eee = &data->eee; |
31 | int ret; |
32 | |
33 | if (!dev->ethtool_ops->get_eee) |
34 | return -EOPNOTSUPP; |
35 | ret = ethnl_ops_begin(dev); |
36 | if (ret < 0) |
37 | return ret; |
38 | ret = dev->ethtool_ops->get_eee(dev, eee); |
39 | ethnl_ops_complete(dev); |
40 | |
41 | return ret; |
42 | } |
43 | |
44 | static int eee_reply_size(const struct ethnl_req_info *req_base, |
45 | const struct ethnl_reply_data *reply_base) |
46 | { |
47 | bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; |
48 | const struct eee_reply_data *data = EEE_REPDATA(reply_base); |
49 | const struct ethtool_keee *eee = &data->eee; |
50 | int len = 0; |
51 | int ret; |
52 | |
53 | /* MODES_OURS */ |
54 | ret = ethnl_bitset_size(val: eee->advertised, mask: eee->supported, |
55 | nbits: __ETHTOOL_LINK_MODE_MASK_NBITS, |
56 | names: link_mode_names, compact); |
57 | if (ret < 0) |
58 | return ret; |
59 | len += ret; |
60 | /* MODES_PEERS */ |
61 | ret = ethnl_bitset_size(val: eee->lp_advertised, NULL, |
62 | nbits: __ETHTOOL_LINK_MODE_MASK_NBITS, |
63 | names: link_mode_names, compact); |
64 | if (ret < 0) |
65 | return ret; |
66 | len += ret; |
67 | |
68 | len += nla_total_size(payload: sizeof(u8)) + /* _EEE_ACTIVE */ |
69 | nla_total_size(payload: sizeof(u8)) + /* _EEE_ENABLED */ |
70 | nla_total_size(payload: sizeof(u8)) + /* _EEE_TX_LPI_ENABLED */ |
71 | nla_total_size(payload: sizeof(u32)); /* _EEE_TX_LPI_TIMER */ |
72 | |
73 | return len; |
74 | } |
75 | |
76 | static int eee_fill_reply(struct sk_buff *skb, |
77 | const struct ethnl_req_info *req_base, |
78 | const struct ethnl_reply_data *reply_base) |
79 | { |
80 | bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; |
81 | const struct eee_reply_data *data = EEE_REPDATA(reply_base); |
82 | const struct ethtool_keee *eee = &data->eee; |
83 | int ret; |
84 | |
85 | ret = ethnl_put_bitset(skb, attrtype: ETHTOOL_A_EEE_MODES_OURS, |
86 | val: eee->advertised, mask: eee->supported, |
87 | nbits: __ETHTOOL_LINK_MODE_MASK_NBITS, |
88 | names: link_mode_names, compact); |
89 | if (ret < 0) |
90 | return ret; |
91 | ret = ethnl_put_bitset(skb, attrtype: ETHTOOL_A_EEE_MODES_PEER, |
92 | val: eee->lp_advertised, NULL, |
93 | nbits: __ETHTOOL_LINK_MODE_MASK_NBITS, |
94 | names: link_mode_names, compact); |
95 | if (ret < 0) |
96 | return ret; |
97 | |
98 | if (nla_put_u8(skb, attrtype: ETHTOOL_A_EEE_ACTIVE, value: eee->eee_active) || |
99 | nla_put_u8(skb, attrtype: ETHTOOL_A_EEE_ENABLED, value: eee->eee_enabled) || |
100 | nla_put_u8(skb, attrtype: ETHTOOL_A_EEE_TX_LPI_ENABLED, |
101 | value: eee->tx_lpi_enabled) || |
102 | nla_put_u32(skb, attrtype: ETHTOOL_A_EEE_TX_LPI_TIMER, value: eee->tx_lpi_timer)) |
103 | return -EMSGSIZE; |
104 | |
105 | return 0; |
106 | } |
107 | |
108 | /* EEE_SET */ |
109 | |
110 | const struct nla_policy ethnl_eee_set_policy[] = { |
111 | [ETHTOOL_A_EEE_HEADER] = |
112 | NLA_POLICY_NESTED(ethnl_header_policy), |
113 | [ETHTOOL_A_EEE_MODES_OURS] = { .type = NLA_NESTED }, |
114 | [ETHTOOL_A_EEE_ENABLED] = { .type = NLA_U8 }, |
115 | [ETHTOOL_A_EEE_TX_LPI_ENABLED] = { .type = NLA_U8 }, |
116 | [ETHTOOL_A_EEE_TX_LPI_TIMER] = { .type = NLA_U32 }, |
117 | }; |
118 | |
119 | static int |
120 | ethnl_set_eee_validate(struct ethnl_req_info *req_info, struct genl_info *info) |
121 | { |
122 | const struct ethtool_ops *ops = req_info->dev->ethtool_ops; |
123 | |
124 | return ops->get_eee && ops->set_eee ? 1 : -EOPNOTSUPP; |
125 | } |
126 | |
127 | static int |
128 | ethnl_set_eee(struct ethnl_req_info *req_info, struct genl_info *info) |
129 | { |
130 | struct net_device *dev = req_info->dev; |
131 | struct nlattr **tb = info->attrs; |
132 | struct ethtool_keee eee = {}; |
133 | bool mod = false; |
134 | int ret; |
135 | |
136 | ret = dev->ethtool_ops->get_eee(dev, &eee); |
137 | if (ret < 0) |
138 | return ret; |
139 | |
140 | ret = ethnl_update_bitset(bitmap: eee.advertised, |
141 | nbits: __ETHTOOL_LINK_MODE_MASK_NBITS, |
142 | attr: tb[ETHTOOL_A_EEE_MODES_OURS], |
143 | names: link_mode_names, extack: info->extack, mod: &mod); |
144 | if (ret < 0) |
145 | return ret; |
146 | ethnl_update_bool(dst: &eee.eee_enabled, attr: tb[ETHTOOL_A_EEE_ENABLED], mod: &mod); |
147 | ethnl_update_bool(dst: &eee.tx_lpi_enabled, attr: tb[ETHTOOL_A_EEE_TX_LPI_ENABLED], |
148 | mod: &mod); |
149 | ethnl_update_u32(dst: &eee.tx_lpi_timer, attr: tb[ETHTOOL_A_EEE_TX_LPI_TIMER], |
150 | mod: &mod); |
151 | if (!mod) |
152 | return 0; |
153 | |
154 | ret = dev->ethtool_ops->set_eee(dev, &eee); |
155 | return ret < 0 ? ret : 1; |
156 | } |
157 | |
158 | const struct ethnl_request_ops ethnl_eee_request_ops = { |
159 | .request_cmd = ETHTOOL_MSG_EEE_GET, |
160 | .reply_cmd = ETHTOOL_MSG_EEE_GET_REPLY, |
161 | .hdr_attr = ETHTOOL_A_EEE_HEADER, |
162 | .req_info_size = sizeof(struct eee_req_info), |
163 | .reply_data_size = sizeof(struct eee_reply_data), |
164 | |
165 | .prepare_data = eee_prepare_data, |
166 | .reply_size = eee_reply_size, |
167 | .fill_reply = eee_fill_reply, |
168 | |
169 | .set_validate = ethnl_set_eee_validate, |
170 | .set = ethnl_set_eee, |
171 | .set_ntf_cmd = ETHTOOL_MSG_EEE_NTF, |
172 | }; |
173 | |