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136 lines
3.7 KiB
136 lines
3.7 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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#include <linux/net_tstamp.h> |
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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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struct tsinfo_req_info { |
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struct ethnl_req_info base; |
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}; |
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struct tsinfo_reply_data { |
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struct ethnl_reply_data base; |
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struct ethtool_ts_info ts_info; |
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}; |
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#define TSINFO_REPDATA(__reply_base) \ |
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container_of(__reply_base, struct tsinfo_reply_data, base) |
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const struct nla_policy ethnl_tsinfo_get_policy[] = { |
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[ETHTOOL_A_TSINFO_HEADER] = |
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NLA_POLICY_NESTED(ethnl_header_policy), |
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}; |
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static int tsinfo_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 tsinfo_reply_data *data = TSINFO_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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ret = __ethtool_get_ts_info(dev, &data->ts_info); |
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ethnl_ops_complete(dev); |
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return ret; |
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} |
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static int tsinfo_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 tsinfo_reply_data *data = TSINFO_REPDATA(reply_base); |
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bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; |
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const struct ethtool_ts_info *ts_info = &data->ts_info; |
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int len = 0; |
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int ret; |
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BUILD_BUG_ON(__SOF_TIMESTAMPING_CNT > 32); |
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BUILD_BUG_ON(__HWTSTAMP_TX_CNT > 32); |
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BUILD_BUG_ON(__HWTSTAMP_FILTER_CNT > 32); |
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if (ts_info->so_timestamping) { |
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ret = ethnl_bitset32_size(&ts_info->so_timestamping, NULL, |
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__SOF_TIMESTAMPING_CNT, |
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sof_timestamping_names, compact); |
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if (ret < 0) |
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return ret; |
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len += ret; /* _TSINFO_TIMESTAMPING */ |
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} |
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if (ts_info->tx_types) { |
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ret = ethnl_bitset32_size(&ts_info->tx_types, NULL, |
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__HWTSTAMP_TX_CNT, |
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ts_tx_type_names, compact); |
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if (ret < 0) |
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return ret; |
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len += ret; /* _TSINFO_TX_TYPES */ |
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} |
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if (ts_info->rx_filters) { |
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ret = ethnl_bitset32_size(&ts_info->rx_filters, NULL, |
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__HWTSTAMP_FILTER_CNT, |
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ts_rx_filter_names, compact); |
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if (ret < 0) |
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return ret; |
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len += ret; /* _TSINFO_RX_FILTERS */ |
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} |
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if (ts_info->phc_index >= 0) |
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len += nla_total_size(sizeof(u32)); /* _TSINFO_PHC_INDEX */ |
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return len; |
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} |
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static int tsinfo_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 tsinfo_reply_data *data = TSINFO_REPDATA(reply_base); |
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bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS; |
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const struct ethtool_ts_info *ts_info = &data->ts_info; |
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int ret; |
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if (ts_info->so_timestamping) { |
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ret = ethnl_put_bitset32(skb, ETHTOOL_A_TSINFO_TIMESTAMPING, |
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&ts_info->so_timestamping, NULL, |
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__SOF_TIMESTAMPING_CNT, |
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sof_timestamping_names, compact); |
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if (ret < 0) |
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return ret; |
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} |
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if (ts_info->tx_types) { |
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ret = ethnl_put_bitset32(skb, ETHTOOL_A_TSINFO_TX_TYPES, |
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&ts_info->tx_types, NULL, |
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__HWTSTAMP_TX_CNT, |
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ts_tx_type_names, compact); |
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if (ret < 0) |
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return ret; |
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} |
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if (ts_info->rx_filters) { |
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ret = ethnl_put_bitset32(skb, ETHTOOL_A_TSINFO_RX_FILTERS, |
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&ts_info->rx_filters, NULL, |
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__HWTSTAMP_FILTER_CNT, |
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ts_rx_filter_names, compact); |
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if (ret < 0) |
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return ret; |
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} |
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if (ts_info->phc_index >= 0 && |
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nla_put_u32(skb, ETHTOOL_A_TSINFO_PHC_INDEX, ts_info->phc_index)) |
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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_tsinfo_request_ops = { |
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.request_cmd = ETHTOOL_MSG_TSINFO_GET, |
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.reply_cmd = ETHTOOL_MSG_TSINFO_GET_REPLY, |
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.hdr_attr = ETHTOOL_A_TSINFO_HEADER, |
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.req_info_size = sizeof(struct tsinfo_req_info), |
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.reply_data_size = sizeof(struct tsinfo_reply_data), |
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.prepare_data = tsinfo_prepare_data, |
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.reply_size = tsinfo_reply_size, |
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.fill_reply = tsinfo_fill_reply, |
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};
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