Commit | Line | Data |
---|---|---|
6a94b8cc MK |
1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | ||
3 | #include "netlink.h" | |
4 | #include "common.h" | |
5 | #include "bitset.h" | |
6 | ||
7 | struct debug_req_info { | |
8 | struct ethnl_req_info base; | |
9 | }; | |
10 | ||
11 | struct debug_reply_data { | |
12 | struct ethnl_reply_data base; | |
13 | u32 msg_mask; | |
14 | }; | |
15 | ||
16 | #define DEBUG_REPDATA(__reply_base) \ | |
17 | container_of(__reply_base, struct debug_reply_data, base) | |
18 | ||
ff419afa | 19 | const struct nla_policy ethnl_debug_get_policy[] = { |
329d9c33 JK |
20 | [ETHTOOL_A_DEBUG_HEADER] = |
21 | NLA_POLICY_NESTED(ethnl_header_policy), | |
6a94b8cc MK |
22 | }; |
23 | ||
24 | static int debug_prepare_data(const struct ethnl_req_info *req_base, | |
25 | struct ethnl_reply_data *reply_base, | |
f946270d | 26 | const struct genl_info *info) |
6a94b8cc MK |
27 | { |
28 | struct debug_reply_data *data = DEBUG_REPDATA(reply_base); | |
29 | struct net_device *dev = reply_base->dev; | |
30 | int ret; | |
31 | ||
32 | if (!dev->ethtool_ops->get_msglevel) | |
33 | return -EOPNOTSUPP; | |
34 | ||
35 | ret = ethnl_ops_begin(dev); | |
36 | if (ret < 0) | |
37 | return ret; | |
38 | data->msg_mask = dev->ethtool_ops->get_msglevel(dev); | |
39 | ethnl_ops_complete(dev); | |
40 | ||
41 | return 0; | |
42 | } | |
43 | ||
44 | static int debug_reply_size(const struct ethnl_req_info *req_base, | |
45 | const struct ethnl_reply_data *reply_base) | |
46 | { | |
47 | const struct debug_reply_data *data = DEBUG_REPDATA(reply_base); | |
48 | bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; | |
49 | ||
50 | return ethnl_bitset32_size(&data->msg_mask, NULL, NETIF_MSG_CLASS_COUNT, | |
51 | netif_msg_class_names, compact); | |
52 | } | |
53 | ||
54 | static int debug_fill_reply(struct sk_buff *skb, | |
55 | const struct ethnl_req_info *req_base, | |
56 | const struct ethnl_reply_data *reply_base) | |
57 | { | |
58 | const struct debug_reply_data *data = DEBUG_REPDATA(reply_base); | |
59 | bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; | |
60 | ||
61 | return ethnl_put_bitset32(skb, ETHTOOL_A_DEBUG_MSGMASK, &data->msg_mask, | |
62 | NULL, NETIF_MSG_CLASS_COUNT, | |
63 | netif_msg_class_names, compact); | |
64 | } | |
65 | ||
e54d04e3 MK |
66 | /* DEBUG_SET */ |
67 | ||
ff419afa | 68 | const struct nla_policy ethnl_debug_set_policy[] = { |
329d9c33 JK |
69 | [ETHTOOL_A_DEBUG_HEADER] = |
70 | NLA_POLICY_NESTED(ethnl_header_policy), | |
e54d04e3 MK |
71 | [ETHTOOL_A_DEBUG_MSGMASK] = { .type = NLA_NESTED }, |
72 | }; | |
73 | ||
04007961 JK |
74 | static int |
75 | ethnl_set_debug_validate(struct ethnl_req_info *req_info, | |
76 | struct genl_info *info) | |
e54d04e3 | 77 | { |
04007961 JK |
78 | const struct ethtool_ops *ops = req_info->dev->ethtool_ops; |
79 | ||
80 | return ops->get_msglevel && ops->set_msglevel ? 1 : -EOPNOTSUPP; | |
81 | } | |
82 | ||
83 | static int | |
84 | ethnl_set_debug(struct ethnl_req_info *req_info, struct genl_info *info) | |
85 | { | |
86 | struct net_device *dev = req_info->dev; | |
5028588b | 87 | struct nlattr **tb = info->attrs; |
e54d04e3 MK |
88 | bool mod = false; |
89 | u32 msg_mask; | |
90 | int ret; | |
91 | ||
e54d04e3 MK |
92 | msg_mask = dev->ethtool_ops->get_msglevel(dev); |
93 | ret = ethnl_update_bitset32(&msg_mask, NETIF_MSG_CLASS_COUNT, | |
94 | tb[ETHTOOL_A_DEBUG_MSGMASK], | |
95 | netif_msg_class_names, info->extack, &mod); | |
96 | if (ret < 0 || !mod) | |
04007961 | 97 | return ret; |
e54d04e3 MK |
98 | |
99 | dev->ethtool_ops->set_msglevel(dev, msg_mask); | |
04007961 | 100 | return 1; |
e54d04e3 | 101 | } |
04007961 JK |
102 | |
103 | const struct ethnl_request_ops ethnl_debug_request_ops = { | |
104 | .request_cmd = ETHTOOL_MSG_DEBUG_GET, | |
105 | .reply_cmd = ETHTOOL_MSG_DEBUG_GET_REPLY, | |
106 | .hdr_attr = ETHTOOL_A_DEBUG_HEADER, | |
107 | .req_info_size = sizeof(struct debug_req_info), | |
108 | .reply_data_size = sizeof(struct debug_reply_data), | |
109 | ||
110 | .prepare_data = debug_prepare_data, | |
111 | .reply_size = debug_reply_size, | |
112 | .fill_reply = debug_fill_reply, | |
113 | ||
114 | .set_validate = ethnl_set_debug_validate, | |
115 | .set = ethnl_set_debug, | |
116 | .set_ntf_cmd = ETHTOOL_MSG_DEBUG_NTF, | |
117 | }; |