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-rw-r--r--net/mac80211/ethtool.c246
1 files changed, 246 insertions, 0 deletions
diff --git a/net/mac80211/ethtool.c b/net/mac80211/ethtool.c
new file mode 100644
index 000000000..a3830d925
--- /dev/null
+++ b/net/mac80211/ethtool.c
@@ -0,0 +1,246 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * mac80211 ethtool hooks for cfg80211
+ *
+ * Copied from cfg.c - originally
+ * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2014 Intel Corporation (Author: Johannes Berg)
+ * Copyright (C) 2018, 2022 Intel Corporation
+ */
+#include <linux/types.h>
+#include <net/cfg80211.h>
+#include "ieee80211_i.h"
+#include "sta_info.h"
+#include "driver-ops.h"
+
+static int ieee80211_set_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *rp,
+ struct kernel_ethtool_ringparam *kernel_rp,
+ struct netlink_ext_ack *extack)
+{
+ struct ieee80211_local *local = wiphy_priv(dev->ieee80211_ptr->wiphy);
+
+ if (rp->rx_mini_pending != 0 || rp->rx_jumbo_pending != 0)
+ return -EINVAL;
+
+ return drv_set_ringparam(local, rp->tx_pending, rp->rx_pending);
+}
+
+static void ieee80211_get_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *rp,
+ struct kernel_ethtool_ringparam *kernel_rp,
+ struct netlink_ext_ack *extack)
+{
+ struct ieee80211_local *local = wiphy_priv(dev->ieee80211_ptr->wiphy);
+
+ memset(rp, 0, sizeof(*rp));
+
+ drv_get_ringparam(local, &rp->tx_pending, &rp->tx_max_pending,
+ &rp->rx_pending, &rp->rx_max_pending);
+}
+
+static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
+ "rx_packets", "rx_bytes",
+ "rx_duplicates", "rx_fragments", "rx_dropped",
+ "tx_packets", "tx_bytes",
+ "tx_filtered", "tx_retry_failed", "tx_retries",
+ "sta_state", "txrate", "rxrate", "signal",
+ "channel", "noise", "ch_time", "ch_time_busy",
+ "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
+};
+#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
+
+static int ieee80211_get_sset_count(struct net_device *dev, int sset)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int rv = 0;
+
+ if (sset == ETH_SS_STATS)
+ rv += STA_STATS_LEN;
+
+ rv += drv_get_et_sset_count(sdata, sset);
+
+ if (rv == 0)
+ return -EOPNOTSUPP;
+ return rv;
+}
+
+static void ieee80211_get_stats(struct net_device *dev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_chanctx_conf *chanctx_conf;
+ struct ieee80211_channel *channel;
+ struct sta_info *sta;
+ struct ieee80211_local *local = sdata->local;
+ struct station_info sinfo;
+ struct survey_info survey;
+ int i, q;
+#define STA_STATS_SURVEY_LEN 7
+
+ memset(data, 0, sizeof(u64) * STA_STATS_LEN);
+
+#define ADD_STA_STATS(sta) \
+ do { \
+ data[i++] += sinfo.rx_packets; \
+ data[i++] += sinfo.rx_bytes; \
+ data[i++] += (sta)->rx_stats.num_duplicates; \
+ data[i++] += (sta)->rx_stats.fragments; \
+ data[i++] += sinfo.rx_dropped_misc; \
+ \
+ data[i++] += sinfo.tx_packets; \
+ data[i++] += sinfo.tx_bytes; \
+ data[i++] += (sta)->status_stats.filtered; \
+ data[i++] += sinfo.tx_failed; \
+ data[i++] += sinfo.tx_retries; \
+ } while (0)
+
+ /* For Managed stations, find the single station based on BSSID
+ * and use that. For interface types, iterate through all available
+ * stations and add stats for any station that is assigned to this
+ * network device.
+ */
+
+ mutex_lock(&local->sta_mtx);
+
+ if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+ sta = sta_info_get_bss(sdata, sdata->deflink.u.mgd.bssid);
+
+ if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
+ goto do_survey;
+
+ memset(&sinfo, 0, sizeof(sinfo));
+ sta_set_sinfo(sta, &sinfo, false);
+
+ i = 0;
+ ADD_STA_STATS(&sta->deflink);
+
+ data[i++] = sta->sta_state;
+
+
+ if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE))
+ data[i] = 100000ULL *
+ cfg80211_calculate_bitrate(&sinfo.txrate);
+ i++;
+ if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_RX_BITRATE))
+ data[i] = 100000ULL *
+ cfg80211_calculate_bitrate(&sinfo.rxrate);
+ i++;
+
+ if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG))
+ data[i] = (u8)sinfo.signal_avg;
+ i++;
+ } else {
+ list_for_each_entry(sta, &local->sta_list, list) {
+ /* Make sure this station belongs to the proper dev */
+ if (sta->sdata->dev != dev)
+ continue;
+
+ memset(&sinfo, 0, sizeof(sinfo));
+ sta_set_sinfo(sta, &sinfo, false);
+ i = 0;
+ ADD_STA_STATS(&sta->deflink);
+ }
+ }
+
+do_survey:
+ i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
+ /* Get survey stats for current channel */
+ survey.filled = 0;
+
+ rcu_read_lock();
+ chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
+ if (chanctx_conf)
+ channel = chanctx_conf->def.chan;
+ else
+ channel = NULL;
+ rcu_read_unlock();
+
+ if (channel) {
+ q = 0;
+ do {
+ survey.filled = 0;
+ if (drv_get_survey(local, q, &survey) != 0) {
+ survey.filled = 0;
+ break;
+ }
+ q++;
+ } while (channel != survey.channel);
+ }
+
+ if (survey.filled)
+ data[i++] = survey.channel->center_freq;
+ else
+ data[i++] = 0;
+ if (survey.filled & SURVEY_INFO_NOISE_DBM)
+ data[i++] = (u8)survey.noise;
+ else
+ data[i++] = -1LL;
+ if (survey.filled & SURVEY_INFO_TIME)
+ data[i++] = survey.time;
+ else
+ data[i++] = -1LL;
+ if (survey.filled & SURVEY_INFO_TIME_BUSY)
+ data[i++] = survey.time_busy;
+ else
+ data[i++] = -1LL;
+ if (survey.filled & SURVEY_INFO_TIME_EXT_BUSY)
+ data[i++] = survey.time_ext_busy;
+ else
+ data[i++] = -1LL;
+ if (survey.filled & SURVEY_INFO_TIME_RX)
+ data[i++] = survey.time_rx;
+ else
+ data[i++] = -1LL;
+ if (survey.filled & SURVEY_INFO_TIME_TX)
+ data[i++] = survey.time_tx;
+ else
+ data[i++] = -1LL;
+
+ mutex_unlock(&local->sta_mtx);
+
+ if (WARN_ON(i != STA_STATS_LEN))
+ return;
+
+ drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
+}
+
+static void ieee80211_get_strings(struct net_device *dev, u32 sset, u8 *data)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int sz_sta_stats = 0;
+
+ if (sset == ETH_SS_STATS) {
+ sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
+ memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
+ }
+ drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
+}
+
+static int ieee80211_get_regs_len(struct net_device *dev)
+{
+ return 0;
+}
+
+static void ieee80211_get_regs(struct net_device *dev,
+ struct ethtool_regs *regs,
+ void *data)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+ regs->version = wdev->wiphy->hw_version;
+ regs->len = 0;
+}
+
+const struct ethtool_ops ieee80211_ethtool_ops = {
+ .get_drvinfo = cfg80211_get_drvinfo,
+ .get_regs_len = ieee80211_get_regs_len,
+ .get_regs = ieee80211_get_regs,
+ .get_link = ethtool_op_get_link,
+ .get_ringparam = ieee80211_get_ringparam,
+ .set_ringparam = ieee80211_set_ringparam,
+ .get_strings = ieee80211_get_strings,
+ .get_ethtool_stats = ieee80211_get_stats,
+ .get_sset_count = ieee80211_get_sset_count,
+};
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