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154 lines
4.3 KiB
154 lines
4.3 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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#include "netlink.h" |
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#include "common.h" |
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struct linkinfo_req_info { |
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struct ethnl_req_info base; |
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}; |
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struct linkinfo_reply_data { |
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struct ethnl_reply_data base; |
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struct ethtool_link_ksettings ksettings; |
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struct ethtool_link_settings *lsettings; |
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}; |
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#define LINKINFO_REPDATA(__reply_base) \ |
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container_of(__reply_base, struct linkinfo_reply_data, base) |
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const struct nla_policy ethnl_linkinfo_get_policy[] = { |
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[ETHTOOL_A_LINKINFO_HEADER] = |
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NLA_POLICY_NESTED(ethnl_header_policy), |
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}; |
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static int linkinfo_prepare_data(const struct ethnl_req_info *req_base, |
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struct ethnl_reply_data *reply_base, |
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struct genl_info *info) |
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{ |
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struct linkinfo_reply_data *data = LINKINFO_REPDATA(reply_base); |
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struct net_device *dev = reply_base->dev; |
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int ret; |
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data->lsettings = &data->ksettings.base; |
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ret = ethnl_ops_begin(dev); |
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if (ret < 0) |
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return ret; |
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ret = __ethtool_get_link_ksettings(dev, &data->ksettings); |
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if (ret < 0 && info) |
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GENL_SET_ERR_MSG(info, "failed to retrieve link settings"); |
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ethnl_ops_complete(dev); |
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return ret; |
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} |
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static int linkinfo_reply_size(const struct ethnl_req_info *req_base, |
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const struct ethnl_reply_data *reply_base) |
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{ |
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return nla_total_size(sizeof(u8)) /* LINKINFO_PORT */ |
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+ nla_total_size(sizeof(u8)) /* LINKINFO_PHYADDR */ |
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+ nla_total_size(sizeof(u8)) /* LINKINFO_TP_MDIX */ |
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+ nla_total_size(sizeof(u8)) /* LINKINFO_TP_MDIX_CTRL */ |
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+ nla_total_size(sizeof(u8)) /* LINKINFO_TRANSCEIVER */ |
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+ 0; |
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} |
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static int linkinfo_fill_reply(struct sk_buff *skb, |
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const struct ethnl_req_info *req_base, |
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const struct ethnl_reply_data *reply_base) |
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{ |
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const struct linkinfo_reply_data *data = LINKINFO_REPDATA(reply_base); |
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if (nla_put_u8(skb, ETHTOOL_A_LINKINFO_PORT, data->lsettings->port) || |
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nla_put_u8(skb, ETHTOOL_A_LINKINFO_PHYADDR, |
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data->lsettings->phy_address) || |
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nla_put_u8(skb, ETHTOOL_A_LINKINFO_TP_MDIX, |
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data->lsettings->eth_tp_mdix) || |
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nla_put_u8(skb, ETHTOOL_A_LINKINFO_TP_MDIX_CTRL, |
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data->lsettings->eth_tp_mdix_ctrl) || |
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nla_put_u8(skb, ETHTOOL_A_LINKINFO_TRANSCEIVER, |
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data->lsettings->transceiver)) |
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return -EMSGSIZE; |
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return 0; |
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} |
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const struct ethnl_request_ops ethnl_linkinfo_request_ops = { |
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.request_cmd = ETHTOOL_MSG_LINKINFO_GET, |
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.reply_cmd = ETHTOOL_MSG_LINKINFO_GET_REPLY, |
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.hdr_attr = ETHTOOL_A_LINKINFO_HEADER, |
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.req_info_size = sizeof(struct linkinfo_req_info), |
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.reply_data_size = sizeof(struct linkinfo_reply_data), |
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.prepare_data = linkinfo_prepare_data, |
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.reply_size = linkinfo_reply_size, |
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.fill_reply = linkinfo_fill_reply, |
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}; |
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/* LINKINFO_SET */ |
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const struct nla_policy ethnl_linkinfo_set_policy[] = { |
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[ETHTOOL_A_LINKINFO_HEADER] = |
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NLA_POLICY_NESTED(ethnl_header_policy), |
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[ETHTOOL_A_LINKINFO_PORT] = { .type = NLA_U8 }, |
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[ETHTOOL_A_LINKINFO_PHYADDR] = { .type = NLA_U8 }, |
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[ETHTOOL_A_LINKINFO_TP_MDIX_CTRL] = { .type = NLA_U8 }, |
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}; |
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int ethnl_set_linkinfo(struct sk_buff *skb, struct genl_info *info) |
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{ |
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struct ethtool_link_ksettings ksettings = {}; |
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struct ethtool_link_settings *lsettings; |
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struct ethnl_req_info req_info = {}; |
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struct nlattr **tb = info->attrs; |
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struct net_device *dev; |
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bool mod = false; |
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int ret; |
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ret = ethnl_parse_header_dev_get(&req_info, |
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tb[ETHTOOL_A_LINKINFO_HEADER], |
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genl_info_net(info), info->extack, |
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true); |
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if (ret < 0) |
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return ret; |
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dev = req_info.dev; |
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ret = -EOPNOTSUPP; |
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if (!dev->ethtool_ops->get_link_ksettings || |
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!dev->ethtool_ops->set_link_ksettings) |
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goto out_dev; |
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rtnl_lock(); |
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ret = ethnl_ops_begin(dev); |
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if (ret < 0) |
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goto out_rtnl; |
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ret = __ethtool_get_link_ksettings(dev, &ksettings); |
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if (ret < 0) { |
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GENL_SET_ERR_MSG(info, "failed to retrieve link settings"); |
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goto out_ops; |
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} |
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lsettings = &ksettings.base; |
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ethnl_update_u8(&lsettings->port, tb[ETHTOOL_A_LINKINFO_PORT], &mod); |
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ethnl_update_u8(&lsettings->phy_address, tb[ETHTOOL_A_LINKINFO_PHYADDR], |
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&mod); |
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ethnl_update_u8(&lsettings->eth_tp_mdix_ctrl, |
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tb[ETHTOOL_A_LINKINFO_TP_MDIX_CTRL], &mod); |
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ret = 0; |
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if (!mod) |
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goto out_ops; |
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ret = dev->ethtool_ops->set_link_ksettings(dev, &ksettings); |
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if (ret < 0) |
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GENL_SET_ERR_MSG(info, "link settings update failed"); |
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else |
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ethtool_notify(dev, ETHTOOL_MSG_LINKINFO_NTF, NULL); |
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out_ops: |
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ethnl_ops_complete(dev); |
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out_rtnl: |
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rtnl_unlock(); |
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out_dev: |
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dev_put(dev); |
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return ret; |
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}
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