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190 lines
5.0 KiB
190 lines
5.0 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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#include "bitset.h" |
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#define EEE_MODES_COUNT \ |
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(sizeof_field(struct ethtool_eee, supported) * BITS_PER_BYTE) |
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struct eee_req_info { |
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struct ethnl_req_info base; |
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}; |
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struct eee_reply_data { |
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struct ethnl_reply_data base; |
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struct ethtool_eee eee; |
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}; |
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#define EEE_REPDATA(__reply_base) \ |
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container_of(__reply_base, struct eee_reply_data, base) |
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const struct nla_policy ethnl_eee_get_policy[] = { |
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[ETHTOOL_A_EEE_HEADER] = |
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NLA_POLICY_NESTED(ethnl_header_policy), |
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}; |
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static int eee_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 eee_reply_data *data = EEE_REPDATA(reply_base); |
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struct net_device *dev = reply_base->dev; |
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int ret; |
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if (!dev->ethtool_ops->get_eee) |
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return -EOPNOTSUPP; |
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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 = dev->ethtool_ops->get_eee(dev, &data->eee); |
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ethnl_ops_complete(dev); |
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return ret; |
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} |
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static int eee_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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bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; |
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const struct eee_reply_data *data = EEE_REPDATA(reply_base); |
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const struct ethtool_eee *eee = &data->eee; |
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int len = 0; |
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int ret; |
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BUILD_BUG_ON(sizeof(eee->advertised) * BITS_PER_BYTE != |
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EEE_MODES_COUNT); |
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BUILD_BUG_ON(sizeof(eee->lp_advertised) * BITS_PER_BYTE != |
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EEE_MODES_COUNT); |
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/* MODES_OURS */ |
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ret = ethnl_bitset32_size(&eee->advertised, &eee->supported, |
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EEE_MODES_COUNT, link_mode_names, compact); |
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if (ret < 0) |
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return ret; |
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len += ret; |
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/* MODES_PEERS */ |
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ret = ethnl_bitset32_size(&eee->lp_advertised, NULL, |
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EEE_MODES_COUNT, link_mode_names, compact); |
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if (ret < 0) |
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return ret; |
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len += ret; |
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len += nla_total_size(sizeof(u8)) + /* _EEE_ACTIVE */ |
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nla_total_size(sizeof(u8)) + /* _EEE_ENABLED */ |
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nla_total_size(sizeof(u8)) + /* _EEE_TX_LPI_ENABLED */ |
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nla_total_size(sizeof(u32)); /* _EEE_TX_LPI_TIMER */ |
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return len; |
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} |
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static int eee_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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bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; |
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const struct eee_reply_data *data = EEE_REPDATA(reply_base); |
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const struct ethtool_eee *eee = &data->eee; |
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int ret; |
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ret = ethnl_put_bitset32(skb, ETHTOOL_A_EEE_MODES_OURS, |
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&eee->advertised, &eee->supported, |
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EEE_MODES_COUNT, link_mode_names, compact); |
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if (ret < 0) |
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return ret; |
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ret = ethnl_put_bitset32(skb, ETHTOOL_A_EEE_MODES_PEER, |
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&eee->lp_advertised, NULL, EEE_MODES_COUNT, |
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link_mode_names, compact); |
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if (ret < 0) |
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return ret; |
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if (nla_put_u8(skb, ETHTOOL_A_EEE_ACTIVE, !!eee->eee_active) || |
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nla_put_u8(skb, ETHTOOL_A_EEE_ENABLED, !!eee->eee_enabled) || |
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nla_put_u8(skb, ETHTOOL_A_EEE_TX_LPI_ENABLED, |
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!!eee->tx_lpi_enabled) || |
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nla_put_u32(skb, ETHTOOL_A_EEE_TX_LPI_TIMER, eee->tx_lpi_timer)) |
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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_eee_request_ops = { |
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.request_cmd = ETHTOOL_MSG_EEE_GET, |
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.reply_cmd = ETHTOOL_MSG_EEE_GET_REPLY, |
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.hdr_attr = ETHTOOL_A_EEE_HEADER, |
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.req_info_size = sizeof(struct eee_req_info), |
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.reply_data_size = sizeof(struct eee_reply_data), |
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.prepare_data = eee_prepare_data, |
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.reply_size = eee_reply_size, |
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.fill_reply = eee_fill_reply, |
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}; |
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/* EEE_SET */ |
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const struct nla_policy ethnl_eee_set_policy[] = { |
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[ETHTOOL_A_EEE_HEADER] = |
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NLA_POLICY_NESTED(ethnl_header_policy), |
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[ETHTOOL_A_EEE_MODES_OURS] = { .type = NLA_NESTED }, |
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[ETHTOOL_A_EEE_ENABLED] = { .type = NLA_U8 }, |
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[ETHTOOL_A_EEE_TX_LPI_ENABLED] = { .type = NLA_U8 }, |
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[ETHTOOL_A_EEE_TX_LPI_TIMER] = { .type = NLA_U32 }, |
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}; |
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int ethnl_set_eee(struct sk_buff *skb, struct genl_info *info) |
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{ |
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struct ethnl_req_info req_info = {}; |
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struct nlattr **tb = info->attrs; |
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const struct ethtool_ops *ops; |
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struct ethtool_eee eee = {}; |
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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_EEE_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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ops = dev->ethtool_ops; |
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ret = -EOPNOTSUPP; |
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if (!ops->get_eee || !ops->set_eee) |
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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 = ops->get_eee(dev, &eee); |
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if (ret < 0) |
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goto out_ops; |
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ret = ethnl_update_bitset32(&eee.advertised, EEE_MODES_COUNT, |
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tb[ETHTOOL_A_EEE_MODES_OURS], |
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link_mode_names, info->extack, &mod); |
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if (ret < 0) |
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goto out_ops; |
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ethnl_update_bool32(&eee.eee_enabled, tb[ETHTOOL_A_EEE_ENABLED], &mod); |
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ethnl_update_bool32(&eee.tx_lpi_enabled, |
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tb[ETHTOOL_A_EEE_TX_LPI_ENABLED], &mod); |
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ethnl_update_u32(&eee.tx_lpi_timer, tb[ETHTOOL_A_EEE_TX_LPI_TIMER], |
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&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_eee(dev, &eee); |
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if (ret < 0) |
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goto out_ops; |
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ethtool_notify(dev, ETHTOOL_MSG_EEE_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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