[mirror_ubuntu-focal-kernel.git] / net / mac80211 / ethtool.c

// 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 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 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 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++] += sta->rx_stats.packets;		\
		data[i++] += sta->rx_stats.bytes;		\
		data[i++] += sta->rx_stats.num_duplicates;	\
		data[i++] += sta->rx_stats.fragments;		\
		data[i++] += sta->rx_stats.dropped;		\
								\
		data[i++] += sinfo.tx_packets;			\
		data[i++] += sinfo.tx_bytes;			\
		data[i++] += sta->status_stats.filtered;	\
		data[i++] += sta->status_stats.retry_failed;	\
		data[i++] += sta->status_stats.retry_count;	\
	} 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->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);

		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);
		}
	}

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.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,
};
Commit	Line	Data
28c61a66	1	// SPDX-License-Identifier: GPL-2.0-only
b7ffbd7e JB	2	/*
	3	* mac80211 ethtool hooks for cfg80211
	4	*
	5	* Copied from cfg.c - originally
	6	* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
	7	* Copyright 2014 Intel Corporation (Author: Johannes Berg)
bfb27814	8	* Copyright (C) 2018 Intel Corporation
b7ffbd7e JB	9	*/
	10	#include <linux/types.h>
	11	#include <net/cfg80211.h>
	12	#include "ieee80211_i.h"
	13	#include "sta_info.h"
	14	#include "driver-ops.h"
	15
	16	static int ieee80211_set_ringparam(struct net_device *dev,
	17	struct ethtool_ringparam *rp)
	18	{
	19	struct ieee80211_local *local = wiphy_priv(dev->ieee80211_ptr->wiphy);
	20
	21	if (rp->rx_mini_pending != 0 \|\| rp->rx_jumbo_pending != 0)
	22	return -EINVAL;
	23
	24	return drv_set_ringparam(local, rp->tx_pending, rp->rx_pending);
	25	}
	26
	27	static void ieee80211_get_ringparam(struct net_device *dev,
	28	struct ethtool_ringparam *rp)
	29	{
	30	struct ieee80211_local *local = wiphy_priv(dev->ieee80211_ptr->wiphy);
	31
	32	memset(rp, 0, sizeof(*rp));
	33
	34	drv_get_ringparam(local, &rp->tx_pending, &rp->tx_max_pending,
	35	&rp->rx_pending, &rp->rx_max_pending);
	36	}
	37
	38	static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
	39	"rx_packets", "rx_bytes",
	40	"rx_duplicates", "rx_fragments", "rx_dropped",
f83f1c12	41	"tx_packets", "tx_bytes",
b7ffbd7e	42	"tx_filtered", "tx_retry_failed", "tx_retries",
976bd9ef	43	"sta_state", "txrate", "rxrate", "signal",
b7ffbd7e JB	44	"channel", "noise", "ch_time", "ch_time_busy",
	45	"ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
	46	};
	47	#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
	48
	49	static int ieee80211_get_sset_count(struct net_device *dev, int sset)
	50	{
	51	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
	52	int rv = 0;
	53
	54	if (sset == ETH_SS_STATS)
	55	rv += STA_STATS_LEN;
	56
	57	rv += drv_get_et_sset_count(sdata, sset);
	58
	59	if (rv == 0)
	60	return -EOPNOTSUPP;
	61	return rv;
	62	}
	63
	64	static void ieee80211_get_stats(struct net_device *dev,
	65	struct ethtool_stats *stats,
	66	u64 *data)
	67	{
	68	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
	69	struct ieee80211_chanctx_conf *chanctx_conf;
	70	struct ieee80211_channel *channel;
	71	struct sta_info *sta;
	72	struct ieee80211_local *local = sdata->local;
73887fd9	73	struct station_info sinfo;
b7ffbd7e JB	74	struct survey_info survey;
	75	int i, q;
	76	#define STA_STATS_SURVEY_LEN 7
	77
	78	memset(data, 0, sizeof(u64) * STA_STATS_LEN);
	79
e5a9f8d0 JB	80	#define ADD_STA_STATS(sta) \
	81	do { \
	82	data[i++] += sta->rx_stats.packets; \
	83	data[i++] += sta->rx_stats.bytes; \
	84	data[i++] += sta->rx_stats.num_duplicates; \
	85	data[i++] += sta->rx_stats.fragments; \
	86	data[i++] += sta->rx_stats.dropped; \
	87	\
73887fd9 JB	88	data[i++] += sinfo.tx_packets; \
73887fd9 JB	89	data[i++] += sinfo.tx_bytes; \
e5a9f8d0 JB	90	data[i++] += sta->status_stats.filtered; \
	91	data[i++] += sta->status_stats.retry_failed; \
	92	data[i++] += sta->status_stats.retry_count; \
b7ffbd7e JB	93	} while (0)
	94
	95	/* For Managed stations, find the single station based on BSSID
	96	* and use that. For interface types, iterate through all available
	97	* stations and add stats for any station that is assigned to this
	98	* network device.
	99	*/
	100
	101	mutex_lock(&local->sta_mtx);
	102
	103	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
	104	sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
	105
	106	if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
	107	goto do_survey;
	108
73887fd9	109	memset(&sinfo, 0, sizeof(sinfo));
0fdf1493	110	sta_set_sinfo(sta, &sinfo, false);
b7ffbd7e JB	111
	112	i = 0;
	113	ADD_STA_STATS(sta);
	114
	115	data[i++] = sta->sta_state;
	116
	117
a4217750	118	if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE))
57c6cb81	119	data[i] = 100000ULL *
73887fd9	120	cfg80211_calculate_bitrate(&sinfo.txrate);
b7ffbd7e	121	i++;
a4217750	122	if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_RX_BITRATE))
57c6cb81	123	data[i] = 100000ULL *
73887fd9	124	cfg80211_calculate_bitrate(&sinfo.rxrate);
b7ffbd7e JB	125	i++;
b7ffbd7e JB	126
a4217750	127	if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG))
73887fd9	128	data[i] = (u8)sinfo.signal_avg;
b7ffbd7e JB	129	i++;
	130	} else {
	131	list_for_each_entry(sta, &local->sta_list, list) {
	132	/* Make sure this station belongs to the proper dev */
	133	if (sta->sdata->dev != dev)
	134	continue;
	135
73887fd9	136	memset(&sinfo, 0, sizeof(sinfo));
0fdf1493	137	sta_set_sinfo(sta, &sinfo, false);
b7ffbd7e JB	138	i = 0;
	139	ADD_STA_STATS(sta);
	140	}
	141	}
	142
	143	do_survey:
	144	i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
	145	/* Get survey stats for current channel */
	146	survey.filled = 0;
	147
	148	rcu_read_lock();
	149	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
	150	if (chanctx_conf)
	151	channel = chanctx_conf->def.chan;
	152	else
	153	channel = NULL;
	154	rcu_read_unlock();
	155
	156	if (channel) {
	157	q = 0;
	158	do {
	159	survey.filled = 0;
	160	if (drv_get_survey(local, q, &survey) != 0) {
	161	survey.filled = 0;
	162	break;
	163	}
	164	q++;
	165	} while (channel != survey.channel);
	166	}
	167
	168	if (survey.filled)
	169	data[i++] = survey.channel->center_freq;
	170	else
	171	data[i++] = 0;
	172	if (survey.filled & SURVEY_INFO_NOISE_DBM)
	173	data[i++] = (u8)survey.noise;
	174	else
	175	data[i++] = -1LL;
4ed20beb JB	176	if (survey.filled & SURVEY_INFO_TIME)
4ed20beb JB	177	data[i++] = survey.time;
b7ffbd7e JB	178	else
b7ffbd7e JB	179	data[i++] = -1LL;
4ed20beb JB	180	if (survey.filled & SURVEY_INFO_TIME_BUSY)
4ed20beb JB	181	data[i++] = survey.time_busy;
b7ffbd7e JB	182	else
b7ffbd7e JB	183	data[i++] = -1LL;
4ed20beb JB	184	if (survey.filled & SURVEY_INFO_TIME_EXT_BUSY)
4ed20beb JB	185	data[i++] = survey.time_ext_busy;
b7ffbd7e JB	186	else
b7ffbd7e JB	187	data[i++] = -1LL;
4ed20beb JB	188	if (survey.filled & SURVEY_INFO_TIME_RX)
4ed20beb JB	189	data[i++] = survey.time_rx;
b7ffbd7e JB	190	else
b7ffbd7e JB	191	data[i++] = -1LL;
4ed20beb JB	192	if (survey.filled & SURVEY_INFO_TIME_TX)
4ed20beb JB	193	data[i++] = survey.time_tx;
b7ffbd7e JB	194	else
	195	data[i++] = -1LL;
	196
	197	mutex_unlock(&local->sta_mtx);
	198
	199	if (WARN_ON(i != STA_STATS_LEN))
	200	return;
	201
	202	drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
	203	}
	204
	205	static void ieee80211_get_strings(struct net_device dev, u32 sset, u8 data)
	206	{
	207	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
	208	int sz_sta_stats = 0;
	209
	210	if (sset == ETH_SS_STATS) {
	211	sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
	212	memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
	213	}
	214	drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
	215	}
	216
	217	static int ieee80211_get_regs_len(struct net_device *dev)
	218	{
	219	return 0;
	220	}
	221
	222	static void ieee80211_get_regs(struct net_device *dev,
	223	struct ethtool_regs *regs,
	224	void *data)
	225	{
	226	struct wireless_dev *wdev = dev->ieee80211_ptr;
	227
	228	regs->version = wdev->wiphy->hw_version;
	229	regs->len = 0;
	230	}
	231
	232	const struct ethtool_ops ieee80211_ethtool_ops = {
	233	.get_drvinfo = cfg80211_get_drvinfo,
	234	.get_regs_len = ieee80211_get_regs_len,
	235	.get_regs = ieee80211_get_regs,
	236	.get_link = ethtool_op_get_link,
	237	.get_ringparam = ieee80211_get_ringparam,
	238	.set_ringparam = ieee80211_set_ringparam,
	239	.get_strings = ieee80211_get_strings,
	240	.get_ethtool_stats = ieee80211_get_stats,
	241	.get_sset_count = ieee80211_get_sset_count,
	242	};