144 строки
4.0 KiB
C
144 строки
4.0 KiB
C
// 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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static const struct nla_policy
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tsinfo_get_policy[ETHTOOL_A_TSINFO_MAX + 1] = {
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[ETHTOOL_A_TSINFO_UNSPEC] = { .type = NLA_REJECT },
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[ETHTOOL_A_TSINFO_HEADER] = { .type = NLA_NESTED },
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[ETHTOOL_A_TSINFO_TIMESTAMPING] = { .type = NLA_REJECT },
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[ETHTOOL_A_TSINFO_TX_TYPES] = { .type = NLA_REJECT },
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[ETHTOOL_A_TSINFO_RX_FILTERS] = { .type = NLA_REJECT },
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[ETHTOOL_A_TSINFO_PHC_INDEX] = { .type = NLA_REJECT },
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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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.max_attr = ETHTOOL_A_TSINFO_MAX,
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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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.request_policy = tsinfo_get_policy,
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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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