forked from Minki/linux
329d9c333e
To get the most out of parsing by the core, and to allow dumping
full policies we need to specify which policy applies to nested
attrs. For headers it's ethnl_header_policy.
$ sed -i 's@\(ETHTOOL_A_.*HEADER\].*=\) { .type = NLA_NESTED },@\1\n\t\tNLA_POLICY_NESTED(ethnl_header_policy),@' net/ethtool/*
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
137 lines
3.7 KiB
C
137 lines
3.7 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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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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