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94 lines
2.4 KiB
94 lines
2.4 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright 2021 NXP |
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*/ |
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#include "netlink.h" |
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#include "common.h" |
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struct phc_vclocks_req_info { |
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struct ethnl_req_info base; |
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}; |
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struct phc_vclocks_reply_data { |
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struct ethnl_reply_data base; |
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int num; |
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int *index; |
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}; |
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#define PHC_VCLOCKS_REPDATA(__reply_base) \ |
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container_of(__reply_base, struct phc_vclocks_reply_data, base) |
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const struct nla_policy ethnl_phc_vclocks_get_policy[] = { |
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[ETHTOOL_A_PHC_VCLOCKS_HEADER] = NLA_POLICY_NESTED(ethnl_header_policy), |
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}; |
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static int phc_vclocks_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 phc_vclocks_reply_data *data = PHC_VCLOCKS_REPDATA(reply_base); |
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struct net_device *dev = reply_base->dev; |
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int ret; |
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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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data->num = ethtool_get_phc_vclocks(dev, &data->index); |
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ethnl_ops_complete(dev); |
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return ret; |
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} |
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static int phc_vclocks_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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const struct phc_vclocks_reply_data *data = |
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PHC_VCLOCKS_REPDATA(reply_base); |
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int len = 0; |
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if (data->num > 0) { |
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len += nla_total_size(sizeof(u32)); |
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len += nla_total_size(sizeof(s32) * data->num); |
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} |
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return len; |
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} |
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static int phc_vclocks_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 phc_vclocks_reply_data *data = |
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PHC_VCLOCKS_REPDATA(reply_base); |
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if (data->num <= 0) |
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return 0; |
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if (nla_put_u32(skb, ETHTOOL_A_PHC_VCLOCKS_NUM, data->num) || |
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nla_put(skb, ETHTOOL_A_PHC_VCLOCKS_INDEX, |
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sizeof(s32) * data->num, data->index)) |
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return -EMSGSIZE; |
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return 0; |
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} |
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static void phc_vclocks_cleanup_data(struct ethnl_reply_data *reply_base) |
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{ |
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const struct phc_vclocks_reply_data *data = |
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PHC_VCLOCKS_REPDATA(reply_base); |
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kfree(data->index); |
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} |
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const struct ethnl_request_ops ethnl_phc_vclocks_request_ops = { |
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.request_cmd = ETHTOOL_MSG_PHC_VCLOCKS_GET, |
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.reply_cmd = ETHTOOL_MSG_PHC_VCLOCKS_GET_REPLY, |
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.hdr_attr = ETHTOOL_A_PHC_VCLOCKS_HEADER, |
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.req_info_size = sizeof(struct phc_vclocks_req_info), |
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.reply_data_size = sizeof(struct phc_vclocks_reply_data), |
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.prepare_data = phc_vclocks_prepare_data, |
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.reply_size = phc_vclocks_reply_size, |
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.fill_reply = phc_vclocks_fill_reply, |
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.cleanup_data = phc_vclocks_cleanup_data, |
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};
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