^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #include <linux/phy.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) #include <linux/ethtool_netlink.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include "netlink.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include "common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) /* 802.3 standard allows 100 meters for BaseT cables. However longer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * cables might work, depending on the quality of the cables and the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * PHY. So allow testing for up to 150 meters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define MAX_CABLE_LENGTH_CM (150 * 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) const struct nla_policy ethnl_cable_test_act_policy[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) [ETHTOOL_A_CABLE_TEST_HEADER] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) NLA_POLICY_NESTED(ethnl_header_policy),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) static int ethnl_cable_test_started(struct phy_device *phydev, u8 cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) struct sk_buff *skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) int err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) void *ehdr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) skb = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) if (!skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) ehdr = ethnl_bcastmsg_put(skb, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) if (!ehdr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) err = -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) err = ethnl_fill_reply_header(skb, phydev->attached_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) ETHTOOL_A_CABLE_TEST_NTF_HEADER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) err = nla_put_u8(skb, ETHTOOL_A_CABLE_TEST_NTF_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) ETHTOOL_A_CABLE_TEST_NTF_STATUS_STARTED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) genlmsg_end(skb, ehdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) return ethnl_multicast(skb, phydev->attached_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) nlmsg_free(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) phydev_err(phydev, "%s: Error %pe\n", __func__, ERR_PTR(err));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) int ethnl_act_cable_test(struct sk_buff *skb, struct genl_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct ethnl_req_info req_info = {};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) const struct ethtool_phy_ops *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct nlattr **tb = info->attrs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) ret = ethnl_parse_header_dev_get(&req_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) tb[ETHTOOL_A_CABLE_TEST_HEADER],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) genl_info_net(info), info->extack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) dev = req_info.dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) if (!dev->phydev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) ret = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) goto out_dev_put;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) ops = ethtool_phy_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) if (!ops || !ops->start_cable_test) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) ret = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) goto out_rtnl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) ret = ethnl_ops_begin(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) goto out_rtnl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) ret = ops->start_cable_test(dev->phydev, info->extack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) ethnl_ops_complete(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) ethnl_cable_test_started(dev->phydev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) ETHTOOL_MSG_CABLE_TEST_NTF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) out_rtnl:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) out_dev_put:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) dev_put(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) int ethnl_cable_test_alloc(struct phy_device *phydev, u8 cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) int err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) /* One TDR sample occupies 20 bytes. For a 150 meter cable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * with four pairs, around 12K is needed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) phydev->skb = genlmsg_new(SZ_16K, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) if (!phydev->skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) phydev->ehdr = ethnl_bcastmsg_put(phydev->skb, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) if (!phydev->ehdr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) err = -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) err = ethnl_fill_reply_header(phydev->skb, phydev->attached_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) ETHTOOL_A_CABLE_TEST_NTF_HEADER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) err = nla_put_u8(phydev->skb, ETHTOOL_A_CABLE_TEST_NTF_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) ETHTOOL_A_CABLE_TEST_NTF_STATUS_COMPLETED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) phydev->nest = nla_nest_start(phydev->skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) ETHTOOL_A_CABLE_TEST_NTF_NEST);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) if (!phydev->nest) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) err = -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) nlmsg_free(phydev->skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) phydev->skb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) EXPORT_SYMBOL_GPL(ethnl_cable_test_alloc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) void ethnl_cable_test_free(struct phy_device *phydev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) nlmsg_free(phydev->skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) phydev->skb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) EXPORT_SYMBOL_GPL(ethnl_cable_test_free);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) void ethnl_cable_test_finished(struct phy_device *phydev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) nla_nest_end(phydev->skb, phydev->nest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) genlmsg_end(phydev->skb, phydev->ehdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) ethnl_multicast(phydev->skb, phydev->attached_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) EXPORT_SYMBOL_GPL(ethnl_cable_test_finished);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) int ethnl_cable_test_result(struct phy_device *phydev, u8 pair, u8 result)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) struct nlattr *nest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) int ret = -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) nest = nla_nest_start(phydev->skb, ETHTOOL_A_CABLE_NEST_RESULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) if (!nest)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) return -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) if (nla_put_u8(phydev->skb, ETHTOOL_A_CABLE_RESULT_PAIR, pair))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) if (nla_put_u8(phydev->skb, ETHTOOL_A_CABLE_RESULT_CODE, result))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) nla_nest_end(phydev->skb, nest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) nla_nest_cancel(phydev->skb, nest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) EXPORT_SYMBOL_GPL(ethnl_cable_test_result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) int ethnl_cable_test_fault_length(struct phy_device *phydev, u8 pair, u32 cm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) struct nlattr *nest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) int ret = -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) nest = nla_nest_start(phydev->skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) ETHTOOL_A_CABLE_NEST_FAULT_LENGTH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) if (!nest)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) return -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (nla_put_u8(phydev->skb, ETHTOOL_A_CABLE_FAULT_LENGTH_PAIR, pair))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) if (nla_put_u32(phydev->skb, ETHTOOL_A_CABLE_FAULT_LENGTH_CM, cm))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) nla_nest_end(phydev->skb, nest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) nla_nest_cancel(phydev->skb, nest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) EXPORT_SYMBOL_GPL(ethnl_cable_test_fault_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) struct cable_test_tdr_req_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) struct ethnl_req_info base;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static const struct nla_policy cable_test_tdr_act_cfg_policy[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) [ETHTOOL_A_CABLE_TEST_TDR_CFG_FIRST] = { .type = NLA_U32 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) [ETHTOOL_A_CABLE_TEST_TDR_CFG_LAST] = { .type = NLA_U32 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) [ETHTOOL_A_CABLE_TEST_TDR_CFG_STEP] = { .type = NLA_U32 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) [ETHTOOL_A_CABLE_TEST_TDR_CFG_PAIR] = { .type = NLA_U8 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) const struct nla_policy ethnl_cable_test_tdr_act_policy[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) [ETHTOOL_A_CABLE_TEST_TDR_HEADER] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) NLA_POLICY_NESTED(ethnl_header_policy),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) [ETHTOOL_A_CABLE_TEST_TDR_CFG] = { .type = NLA_NESTED },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) /* CABLE_TEST_TDR_ACT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) static int ethnl_act_cable_test_tdr_cfg(const struct nlattr *nest,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) struct genl_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) struct phy_tdr_config *cfg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) struct nlattr *tb[ARRAY_SIZE(cable_test_tdr_act_cfg_policy)];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) cfg->first = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) cfg->step = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) cfg->last = MAX_CABLE_LENGTH_CM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) cfg->pair = PHY_PAIR_ALL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) if (!nest)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) ret = nla_parse_nested(tb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) ARRAY_SIZE(cable_test_tdr_act_cfg_policy) - 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) nest, cable_test_tdr_act_cfg_policy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) info->extack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) if (tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_FIRST])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) cfg->first = nla_get_u32(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_FIRST]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) if (tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_LAST])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) cfg->last = nla_get_u32(tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_LAST]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) if (tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_STEP])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) cfg->step = nla_get_u32(tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_STEP]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) if (tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_PAIR]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) cfg->pair = nla_get_u8(tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_PAIR]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) if (cfg->pair > ETHTOOL_A_CABLE_PAIR_D) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) NL_SET_ERR_MSG_ATTR(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) info->extack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_PAIR],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) "invalid pair parameter");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) if (cfg->first > MAX_CABLE_LENGTH_CM) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) NL_SET_ERR_MSG_ATTR(info->extack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_FIRST],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) "invalid first parameter");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) if (cfg->last > MAX_CABLE_LENGTH_CM) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) NL_SET_ERR_MSG_ATTR(info->extack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_LAST],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) "invalid last parameter");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) if (cfg->first > cfg->last) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) NL_SET_ERR_MSG(info->extack, "invalid first/last parameter");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) if (!cfg->step) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) NL_SET_ERR_MSG_ATTR(info->extack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_STEP],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) "invalid step parameter");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) if (cfg->step > (cfg->last - cfg->first)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) NL_SET_ERR_MSG_ATTR(info->extack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) tb[ETHTOOL_A_CABLE_TEST_TDR_CFG_STEP],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) "step parameter too big");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) int ethnl_act_cable_test_tdr(struct sk_buff *skb, struct genl_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) struct ethnl_req_info req_info = {};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) const struct ethtool_phy_ops *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) struct nlattr **tb = info->attrs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) struct phy_tdr_config cfg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) ret = ethnl_parse_header_dev_get(&req_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) tb[ETHTOOL_A_CABLE_TEST_TDR_HEADER],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) genl_info_net(info), info->extack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) dev = req_info.dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) if (!dev->phydev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) ret = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) goto out_dev_put;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) ret = ethnl_act_cable_test_tdr_cfg(tb[ETHTOOL_A_CABLE_TEST_TDR_CFG],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) info, &cfg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) goto out_dev_put;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) ops = ethtool_phy_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) if (!ops || !ops->start_cable_test_tdr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) ret = -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) goto out_rtnl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) ret = ethnl_ops_begin(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) goto out_rtnl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) ret = ops->start_cable_test_tdr(dev->phydev, info->extack, &cfg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) ethnl_ops_complete(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) ethnl_cable_test_started(dev->phydev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) ETHTOOL_MSG_CABLE_TEST_TDR_NTF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) out_rtnl:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) out_dev_put:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) dev_put(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) int ethnl_cable_test_amplitude(struct phy_device *phydev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) u8 pair, s16 mV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) struct nlattr *nest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) int ret = -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) nest = nla_nest_start(phydev->skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) ETHTOOL_A_CABLE_TDR_NEST_AMPLITUDE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) if (!nest)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) return -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) if (nla_put_u8(phydev->skb, ETHTOOL_A_CABLE_AMPLITUDE_PAIR, pair))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) if (nla_put_u16(phydev->skb, ETHTOOL_A_CABLE_AMPLITUDE_mV, mV))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) nla_nest_end(phydev->skb, nest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) nla_nest_cancel(phydev->skb, nest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) EXPORT_SYMBOL_GPL(ethnl_cable_test_amplitude);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) int ethnl_cable_test_pulse(struct phy_device *phydev, u16 mV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) struct nlattr *nest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) int ret = -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) nest = nla_nest_start(phydev->skb, ETHTOOL_A_CABLE_TDR_NEST_PULSE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) if (!nest)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) return -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) if (nla_put_u16(phydev->skb, ETHTOOL_A_CABLE_PULSE_mV, mV))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) nla_nest_end(phydev->skb, nest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) nla_nest_cancel(phydev->skb, nest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) EXPORT_SYMBOL_GPL(ethnl_cable_test_pulse);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) int ethnl_cable_test_step(struct phy_device *phydev, u32 first, u32 last,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) u32 step)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) struct nlattr *nest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) int ret = -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) nest = nla_nest_start(phydev->skb, ETHTOOL_A_CABLE_TDR_NEST_STEP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) if (!nest)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) return -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) if (nla_put_u32(phydev->skb, ETHTOOL_A_CABLE_STEP_FIRST_DISTANCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) first))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) if (nla_put_u32(phydev->skb, ETHTOOL_A_CABLE_STEP_LAST_DISTANCE, last))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) if (nla_put_u32(phydev->skb, ETHTOOL_A_CABLE_STEP_STEP_DISTANCE, step))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) nla_nest_end(phydev->skb, nest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) nla_nest_cancel(phydev->skb, nest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) EXPORT_SYMBOL_GPL(ethnl_cable_test_step);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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