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// SPDX-License-Identifier: GPL-2.0-only
#include <linux/net_tstamp.h>
#include <linux/phy.h>
#include "netlink.h"
#include "common.h"
#include "bitset.h"
struct ts_req_info {
struct ethnl_req_info base;
};
struct ts_reply_data {
struct ethnl_reply_data base;
enum timestamping_layer ts_layer;
};
#define TS_REPDATA(__reply_base) \
container_of(__reply_base, struct ts_reply_data, base)
/* TS_GET */
const struct nla_policy ethnl_ts_get_policy[] = {
[ETHTOOL_A_TS_HEADER] =
NLA_POLICY_NESTED(ethnl_header_policy),
};
static int ts_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
const struct genl_info *info)
{
struct ts_reply_data *data = TS_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
const struct ethtool_ops *ops = dev->ethtool_ops;
int ret;
ret = ethnl_ops_begin(dev);
if (ret < 0)
return ret;
if (phy_has_tsinfo(dev->phydev)) {
data->ts_layer = PHY_TIMESTAMPING;
} else if (ops->get_ts_info) {
struct ethtool_ts_info ts_info = {0};
ops->get_ts_info(dev, &ts_info);
if (ts_info.so_timestamping &
SOF_TIMESTAMPING_HARDWARE_MASK)
data->ts_layer = MAC_TIMESTAMPING;
if (ts_info.so_timestamping &
SOF_TIMESTAMPING_SOFTWARE_MASK)
data->ts_layer = SOFTWARE_TIMESTAMPING;
} else {
data->ts_layer = NO_TIMESTAMPING;
}
ethnl_ops_complete(dev);
return ret;
}
static int ts_reply_size(const struct ethnl_req_info *req_base,
const struct ethnl_reply_data *reply_base)
{
return nla_total_size(sizeof(u32));
}
static int ts_fill_reply(struct sk_buff *skb,
const struct ethnl_req_info *req_base,
const struct ethnl_reply_data *reply_base)
{
struct ts_reply_data *data = TS_REPDATA(reply_base);
return nla_put_u32(skb, ETHTOOL_A_TS_LAYER, data->ts_layer);
}
const struct ethnl_request_ops ethnl_ts_request_ops = {
.request_cmd = ETHTOOL_MSG_TS_GET,
.reply_cmd = ETHTOOL_MSG_TS_GET_REPLY,
.hdr_attr = ETHTOOL_A_TS_HEADER,
.req_info_size = sizeof(struct ts_req_info),
.reply_data_size = sizeof(struct ts_reply_data),
.prepare_data = ts_prepare_data,
.reply_size = ts_reply_size,
.fill_reply = ts_fill_reply,
};
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