pause.c (03ab8e6297acd1bc0eedaa050e2a1635c576fd11) pause.c (04692c9020b76939715d6f2b4ff84d832246e0fc)
1// SPDX-License-Identifier: GPL-2.0-only
2
3#include "netlink.h"
4#include "common.h"
5
6struct pause_req_info {
7 struct ethnl_req_info base;
1// SPDX-License-Identifier: GPL-2.0-only
2
3#include "netlink.h"
4#include "common.h"
5
6struct pause_req_info {
7 struct ethnl_req_info base;
8 enum ethtool_mac_stats_src src;
8};
9
9};
10
11#define PAUSE_REQINFO(__req_base) \
12 container_of(__req_base, struct pause_req_info, base)
13
10struct pause_reply_data {
11 struct ethnl_reply_data base;
12 struct ethtool_pauseparam pauseparam;
13 struct ethtool_pause_stats pausestat;
14};
15
16#define PAUSE_REPDATA(__reply_base) \
17 container_of(__reply_base, struct pause_reply_data, base)
18
19const struct nla_policy ethnl_pause_get_policy[] = {
20 [ETHTOOL_A_PAUSE_HEADER] =
21 NLA_POLICY_NESTED(ethnl_header_policy_stats),
14struct pause_reply_data {
15 struct ethnl_reply_data base;
16 struct ethtool_pauseparam pauseparam;
17 struct ethtool_pause_stats pausestat;
18};
19
20#define PAUSE_REPDATA(__reply_base) \
21 container_of(__reply_base, struct pause_reply_data, base)
22
23const struct nla_policy ethnl_pause_get_policy[] = {
24 [ETHTOOL_A_PAUSE_HEADER] =
25 NLA_POLICY_NESTED(ethnl_header_policy_stats),
26 [ETHTOOL_A_PAUSE_STATS_SRC] =
27 NLA_POLICY_MAX(NLA_U32, ETHTOOL_MAC_STATS_SRC_PMAC),
22};
23
28};
29
30static int pause_parse_request(struct ethnl_req_info *req_base,
31 struct nlattr **tb,
32 struct netlink_ext_ack *extack)
33{
34 enum ethtool_mac_stats_src src = ETHTOOL_MAC_STATS_SRC_AGGREGATE;
35 struct pause_req_info *req_info = PAUSE_REQINFO(req_base);
36
37 if (tb[ETHTOOL_A_PAUSE_STATS_SRC]) {
38 if (!(req_base->flags & ETHTOOL_FLAG_STATS)) {
39 NL_SET_ERR_MSG_MOD(extack,
40 "ETHTOOL_FLAG_STATS must be set when requesting a source of stats");
41 return -EINVAL;
42 }
43
44 src = nla_get_u32(tb[ETHTOOL_A_PAUSE_STATS_SRC]);
45 }
46
47 req_info->src = src;
48
49 return 0;
50}
51
24static int pause_prepare_data(const struct ethnl_req_info *req_base,
25 struct ethnl_reply_data *reply_base,
26 struct genl_info *info)
27{
52static int pause_prepare_data(const struct ethnl_req_info *req_base,
53 struct ethnl_reply_data *reply_base,
54 struct genl_info *info)
55{
56 const struct pause_req_info *req_info = PAUSE_REQINFO(req_base);
28 struct pause_reply_data *data = PAUSE_REPDATA(reply_base);
57 struct pause_reply_data *data = PAUSE_REPDATA(reply_base);
58 enum ethtool_mac_stats_src src = req_info->src;
59 struct netlink_ext_ack *extack = info->extack;
29 struct net_device *dev = reply_base->dev;
30 int ret;
31
32 if (!dev->ethtool_ops->get_pauseparam)
33 return -EOPNOTSUPP;
34
35 ethtool_stats_init((u64 *)&data->pausestat,
36 sizeof(data->pausestat) / 8);
60 struct net_device *dev = reply_base->dev;
61 int ret;
62
63 if (!dev->ethtool_ops->get_pauseparam)
64 return -EOPNOTSUPP;
65
66 ethtool_stats_init((u64 *)&data->pausestat,
67 sizeof(data->pausestat) / 8);
68 data->pausestat.src = src;
37
38 ret = ethnl_ops_begin(dev);
39 if (ret < 0)
40 return ret;
69
70 ret = ethnl_ops_begin(dev);
71 if (ret < 0)
72 return ret;
73
74 if ((src == ETHTOOL_MAC_STATS_SRC_EMAC ||
75 src == ETHTOOL_MAC_STATS_SRC_PMAC) &&
76 !__ethtool_dev_mm_supported(dev)) {
77 NL_SET_ERR_MSG_MOD(extack,
78 "Device does not support MAC merge layer");
79 ethnl_ops_complete(dev);
80 return -EOPNOTSUPP;
81 }
82
41 dev->ethtool_ops->get_pauseparam(dev, &data->pauseparam);
42 if (req_base->flags & ETHTOOL_FLAG_STATS &&
43 dev->ethtool_ops->get_pause_stats)
44 dev->ethtool_ops->get_pause_stats(dev, &data->pausestat);
83 dev->ethtool_ops->get_pauseparam(dev, &data->pauseparam);
84 if (req_base->flags & ETHTOOL_FLAG_STATS &&
85 dev->ethtool_ops->get_pause_stats)
86 dev->ethtool_ops->get_pause_stats(dev, &data->pausestat);
87
45 ethnl_ops_complete(dev);
46
47 return 0;
48}
49
50static int pause_reply_size(const struct ethnl_req_info *req_base,
51 const struct ethnl_reply_data *reply_base)
52{
53 int n = nla_total_size(sizeof(u8)) + /* _PAUSE_AUTONEG */
54 nla_total_size(sizeof(u8)) + /* _PAUSE_RX */
55 nla_total_size(sizeof(u8)); /* _PAUSE_TX */
56
57 if (req_base->flags & ETHTOOL_FLAG_STATS)
58 n += nla_total_size(0) + /* _PAUSE_STATS */
88 ethnl_ops_complete(dev);
89
90 return 0;
91}
92
93static int pause_reply_size(const struct ethnl_req_info *req_base,
94 const struct ethnl_reply_data *reply_base)
95{
96 int n = nla_total_size(sizeof(u8)) + /* _PAUSE_AUTONEG */
97 nla_total_size(sizeof(u8)) + /* _PAUSE_RX */
98 nla_total_size(sizeof(u8)); /* _PAUSE_TX */
99
100 if (req_base->flags & ETHTOOL_FLAG_STATS)
101 n += nla_total_size(0) + /* _PAUSE_STATS */
102 nla_total_size(sizeof(u32)) + /* _PAUSE_STATS_SRC */
59 nla_total_size_64bit(sizeof(u64)) * ETHTOOL_PAUSE_STAT_CNT;
60 return n;
61}
62
63static int ethtool_put_stat(struct sk_buff *skb, u64 val, u16 attrtype,
64 u16 padtype)
65{
66 if (val == ETHTOOL_STAT_NOT_SET)

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72}
73
74static int pause_put_stats(struct sk_buff *skb,
75 const struct ethtool_pause_stats *pause_stats)
76{
77 const u16 pad = ETHTOOL_A_PAUSE_STAT_PAD;
78 struct nlattr *nest;
79
103 nla_total_size_64bit(sizeof(u64)) * ETHTOOL_PAUSE_STAT_CNT;
104 return n;
105}
106
107static int ethtool_put_stat(struct sk_buff *skb, u64 val, u16 attrtype,
108 u16 padtype)
109{
110 if (val == ETHTOOL_STAT_NOT_SET)

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116}
117
118static int pause_put_stats(struct sk_buff *skb,
119 const struct ethtool_pause_stats *pause_stats)
120{
121 const u16 pad = ETHTOOL_A_PAUSE_STAT_PAD;
122 struct nlattr *nest;
123
124 if (nla_put_u32(skb, ETHTOOL_A_PAUSE_STATS_SRC, pause_stats->src))
125 return -EMSGSIZE;
126
80 nest = nla_nest_start(skb, ETHTOOL_A_PAUSE_STATS);
81 if (!nest)
82 return -EMSGSIZE;
83
84 if (ethtool_put_stat(skb, pause_stats->tx_pause_frames,
85 ETHTOOL_A_PAUSE_STAT_TX_FRAMES, pad) ||
86 ethtool_put_stat(skb, pause_stats->rx_pause_frames,
87 ETHTOOL_A_PAUSE_STAT_RX_FRAMES, pad))

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116
117const struct ethnl_request_ops ethnl_pause_request_ops = {
118 .request_cmd = ETHTOOL_MSG_PAUSE_GET,
119 .reply_cmd = ETHTOOL_MSG_PAUSE_GET_REPLY,
120 .hdr_attr = ETHTOOL_A_PAUSE_HEADER,
121 .req_info_size = sizeof(struct pause_req_info),
122 .reply_data_size = sizeof(struct pause_reply_data),
123
127 nest = nla_nest_start(skb, ETHTOOL_A_PAUSE_STATS);
128 if (!nest)
129 return -EMSGSIZE;
130
131 if (ethtool_put_stat(skb, pause_stats->tx_pause_frames,
132 ETHTOOL_A_PAUSE_STAT_TX_FRAMES, pad) ||
133 ethtool_put_stat(skb, pause_stats->rx_pause_frames,
134 ETHTOOL_A_PAUSE_STAT_RX_FRAMES, pad))

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163
164const struct ethnl_request_ops ethnl_pause_request_ops = {
165 .request_cmd = ETHTOOL_MSG_PAUSE_GET,
166 .reply_cmd = ETHTOOL_MSG_PAUSE_GET_REPLY,
167 .hdr_attr = ETHTOOL_A_PAUSE_HEADER,
168 .req_info_size = sizeof(struct pause_req_info),
169 .reply_data_size = sizeof(struct pause_reply_data),
170
171 .parse_request = pause_parse_request,
124 .prepare_data = pause_prepare_data,
125 .reply_size = pause_reply_size,
126 .fill_reply = pause_fill_reply,
127};
128
129/* PAUSE_SET */
130
131const struct nla_policy ethnl_pause_set_policy[] = {

--- 55 unchanged lines hidden --- 		172 .prepare_data = pause_prepare_data,
173 .reply_size = pause_reply_size,
174 .fill_reply = pause_fill_reply,
175};
176
177/* PAUSE_SET */
178
179const struct nla_policy ethnl_pause_set_policy[] = {

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