+
+static const struct nla_policy
+cable_test_tdr_act_policy[ETHTOOL_A_CABLE_TEST_TDR_MAX + 1] = {
+ [ETHTOOL_A_CABLE_TEST_TDR_UNSPEC] = { .type = NLA_REJECT },
+ [ETHTOOL_A_CABLE_TEST_TDR_HEADER] = { .type = NLA_NESTED },
+};
+
+int ethnl_act_cable_test_tdr(struct sk_buff *skb, struct genl_info *info)
+{
+ struct nlattr *tb[ETHTOOL_A_CABLE_TEST_TDR_MAX + 1];
+ struct ethnl_req_info req_info = {};
+ struct net_device *dev;
+ int ret;
+
+ ret = nlmsg_parse(info->nlhdr, GENL_HDRLEN, tb,
+ ETHTOOL_A_CABLE_TEST_TDR_MAX,
+ cable_test_tdr_act_policy, info->extack);
+ if (ret < 0)
+ return ret;
+
+ ret = ethnl_parse_header_dev_get(&req_info,
+ tb[ETHTOOL_A_CABLE_TEST_TDR_HEADER],
+ genl_info_net(info), info->extack,
+ true);
+ if (ret < 0)
+ return ret;
+
+ dev = req_info.dev;
+ if (!dev->phydev) {
+ ret = -EOPNOTSUPP;
+ goto out_dev_put;
+ }
+
+ rtnl_lock();
+ ret = ethnl_ops_begin(dev);
+ if (ret < 0)
+ goto out_rtnl;
+
+ ret = phy_start_cable_test_tdr(dev->phydev, info->extack);
+
+ ethnl_ops_complete(dev);
+
+ if (!ret)
+ ethnl_cable_test_started(dev->phydev,
+ ETHTOOL_MSG_CABLE_TEST_TDR_NTF);
+
+out_rtnl:
+ rtnl_unlock();
+out_dev_put:
+ dev_put(dev);
+ return ret;
+}