[linux.git] / net / mac80211 / ethtool.c

/*
 * mac80211 ethtool hooks for cfg80211
 *
 * Copied from cfg.c - originally
 * Copyright 2006-2010	Johannes Berg <[email protected]>
 * Copyright 2014	Intel Corporation (Author: Johannes Berg)
 * Copyright (C) 2018 Intel Corporation
 *
 * This file is GPLv2 as found in COPYING.
 */
#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

	sinfo = kmalloc(sizeof(*sinfo), GFP_KERNEL);
	if (!sinfo)
		return;

	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);

		i = 0;
		ADD_STA_STATS(sta);

		data[i++] = sta->sta_state;


		if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE))
			data[i] = 100000 *
				cfg80211_calculate_bitrate(&sinfo->txrate);
		i++;
		if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE))
			data[i] = 100000 *
				cfg80211_calculate_bitrate(&sinfo->rxrate);
		i++;

		if (sinfo->filled & BIT(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);
			i = 0;
			ADD_STA_STATS(sta);
		}
	}

do_survey:
	kfree(sinfo);

	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
b7ffbd7e JB	1	/*
	2	* mac80211 ethtool hooks for cfg80211
	3	*
	4	* Copied from cfg.c - originally
	5	* Copyright 2006-2010 Johannes Berg <[email protected]>
	6	* Copyright 2014 Intel Corporation (Author: Johannes Berg)
bfb27814	7	* Copyright (C) 2018 Intel Corporation
b7ffbd7e JB	8	*
	9	* This file is GPLv2 as found in COPYING.
	10	*/
	11	#include <linux/types.h>
	12	#include <net/cfg80211.h>
	13	#include "ieee80211_i.h"
	14	#include "sta_info.h"
	15	#include "driver-ops.h"
	16
	17	static int ieee80211_set_ringparam(struct net_device *dev,
	18	struct ethtool_ringparam *rp)
	19	{
	20	struct ieee80211_local *local = wiphy_priv(dev->ieee80211_ptr->wiphy);
	21
	22	if (rp->rx_mini_pending != 0 \|\| rp->rx_jumbo_pending != 0)
	23	return -EINVAL;
	24
	25	return drv_set_ringparam(local, rp->tx_pending, rp->rx_pending);
	26	}
	27
	28	static void ieee80211_get_ringparam(struct net_device *dev,
	29	struct ethtool_ringparam *rp)
	30	{
	31	struct ieee80211_local *local = wiphy_priv(dev->ieee80211_ptr->wiphy);
	32
	33	memset(rp, 0, sizeof(*rp));
	34
	35	drv_get_ringparam(local, &rp->tx_pending, &rp->tx_max_pending,
	36	&rp->rx_pending, &rp->rx_max_pending);
	37	}
	38
	39	static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
	40	"rx_packets", "rx_bytes",
	41	"rx_duplicates", "rx_fragments", "rx_dropped",
f83f1c12	42	"tx_packets", "tx_bytes",
b7ffbd7e	43	"tx_filtered", "tx_retry_failed", "tx_retries",
976bd9ef	44	"sta_state", "txrate", "rxrate", "signal",
b7ffbd7e JB	45	"channel", "noise", "ch_time", "ch_time_busy",
	46	"ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
	47	};
	48	#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
	49
	50	static int ieee80211_get_sset_count(struct net_device *dev, int sset)
	51	{
	52	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
	53	int rv = 0;
	54
	55	if (sset == ETH_SS_STATS)
	56	rv += STA_STATS_LEN;
	57
	58	rv += drv_get_et_sset_count(sdata, sset);
	59
	60	if (rv == 0)
	61	return -EOPNOTSUPP;
	62	return rv;
	63	}
	64
	65	static void ieee80211_get_stats(struct net_device *dev,
	66	struct ethtool_stats *stats,
	67	u64 *data)
	68	{
	69	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
	70	struct ieee80211_chanctx_conf *chanctx_conf;
	71	struct ieee80211_channel *channel;
	72	struct sta_info *sta;
	73	struct ieee80211_local *local = sdata->local;
52539ca8	74	struct station_info *sinfo;
b7ffbd7e JB	75	struct survey_info survey;
	76	int i, q;
	77	#define STA_STATS_SURVEY_LEN 7
	78
52539ca8 THJ	79	sinfo = kmalloc(sizeof(*sinfo), GFP_KERNEL);
	80	if (!sinfo)
	81	return;
	82
b7ffbd7e JB	83	memset(data, 0, sizeof(u64) * STA_STATS_LEN);
b7ffbd7e JB	84
e5a9f8d0 JB	85	#define ADD_STA_STATS(sta) \
	86	do { \
	87	data[i++] += sta->rx_stats.packets; \
	88	data[i++] += sta->rx_stats.bytes; \
	89	data[i++] += sta->rx_stats.num_duplicates; \
	90	data[i++] += sta->rx_stats.fragments; \
	91	data[i++] += sta->rx_stats.dropped; \
	92	\
52539ca8 THJ	93	data[i++] += sinfo->tx_packets; \
52539ca8 THJ	94	data[i++] += sinfo->tx_bytes; \
e5a9f8d0 JB	95	data[i++] += sta->status_stats.filtered; \
	96	data[i++] += sta->status_stats.retry_failed; \
	97	data[i++] += sta->status_stats.retry_count; \
b7ffbd7e JB	98	} while (0)
	99
	100	/* For Managed stations, find the single station based on BSSID
	101	* and use that. For interface types, iterate through all available
	102	* stations and add stats for any station that is assigned to this
	103	* network device.
	104	*/
	105
	106	mutex_lock(&local->sta_mtx);
	107
	108	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
	109	sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
	110
	111	if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
	112	goto do_survey;
	113
52539ca8 THJ	114	memset(sinfo, 0, sizeof(*sinfo));
52539ca8 THJ	115	sta_set_sinfo(sta, sinfo);
b7ffbd7e JB	116
	117	i = 0;
	118	ADD_STA_STATS(sta);
	119
	120	data[i++] = sta->sta_state;
	121
	122
52539ca8	123	if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE))
b7ffbd7e	124	data[i] = 100000 *
52539ca8	125	cfg80211_calculate_bitrate(&sinfo->txrate);
b7ffbd7e	126	i++;
52539ca8	127	if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE))
b7ffbd7e	128	data[i] = 100000 *
52539ca8	129	cfg80211_calculate_bitrate(&sinfo->rxrate);
b7ffbd7e JB	130	i++;
b7ffbd7e JB	131
52539ca8 THJ	132	if (sinfo->filled & BIT(NL80211_STA_INFO_SIGNAL_AVG))
52539ca8 THJ	133	data[i] = (u8)sinfo->signal_avg;
b7ffbd7e JB	134	i++;
	135	} else {
	136	list_for_each_entry(sta, &local->sta_list, list) {
	137	/* Make sure this station belongs to the proper dev */
	138	if (sta->sdata->dev != dev)
	139	continue;
	140
52539ca8 THJ	141	memset(sinfo, 0, sizeof(*sinfo));
52539ca8 THJ	142	sta_set_sinfo(sta, sinfo);
b7ffbd7e JB	143	i = 0;
	144	ADD_STA_STATS(sta);
	145	}
	146	}
	147
	148	do_survey:
52539ca8 THJ	149	kfree(sinfo);
52539ca8 THJ	150
b7ffbd7e JB	151	i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
	152	/* Get survey stats for current channel */
	153	survey.filled = 0;
	154
	155	rcu_read_lock();
	156	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
	157	if (chanctx_conf)
	158	channel = chanctx_conf->def.chan;
	159	else
	160	channel = NULL;
	161	rcu_read_unlock();
	162
	163	if (channel) {
	164	q = 0;
	165	do {
	166	survey.filled = 0;
	167	if (drv_get_survey(local, q, &survey) != 0) {
	168	survey.filled = 0;
	169	break;
	170	}
	171	q++;
	172	} while (channel != survey.channel);
	173	}
	174
	175	if (survey.filled)
	176	data[i++] = survey.channel->center_freq;
	177	else
	178	data[i++] = 0;
	179	if (survey.filled & SURVEY_INFO_NOISE_DBM)
	180	data[i++] = (u8)survey.noise;
	181	else
	182	data[i++] = -1LL;
4ed20beb JB	183	if (survey.filled & SURVEY_INFO_TIME)
4ed20beb JB	184	data[i++] = survey.time;
b7ffbd7e JB	185	else
b7ffbd7e JB	186	data[i++] = -1LL;
4ed20beb JB	187	if (survey.filled & SURVEY_INFO_TIME_BUSY)
4ed20beb JB	188	data[i++] = survey.time_busy;
b7ffbd7e JB	189	else
b7ffbd7e JB	190	data[i++] = -1LL;
4ed20beb JB	191	if (survey.filled & SURVEY_INFO_TIME_EXT_BUSY)
4ed20beb JB	192	data[i++] = survey.time_ext_busy;
b7ffbd7e JB	193	else
b7ffbd7e JB	194	data[i++] = -1LL;
4ed20beb JB	195	if (survey.filled & SURVEY_INFO_TIME_RX)
4ed20beb JB	196	data[i++] = survey.time_rx;
b7ffbd7e JB	197	else
b7ffbd7e JB	198	data[i++] = -1LL;
4ed20beb JB	199	if (survey.filled & SURVEY_INFO_TIME_TX)
4ed20beb JB	200	data[i++] = survey.time_tx;
b7ffbd7e JB	201	else
	202	data[i++] = -1LL;
	203
	204	mutex_unlock(&local->sta_mtx);
	205
	206	if (WARN_ON(i != STA_STATS_LEN))
	207	return;
	208
	209	drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
	210	}
	211
	212	static void ieee80211_get_strings(struct net_device dev, u32 sset, u8 data)
	213	{
	214	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
	215	int sz_sta_stats = 0;
	216
	217	if (sset == ETH_SS_STATS) {
	218	sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
	219	memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
	220	}
	221	drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
	222	}
	223
	224	static int ieee80211_get_regs_len(struct net_device *dev)
	225	{
	226	return 0;
	227	}
	228
	229	static void ieee80211_get_regs(struct net_device *dev,
	230	struct ethtool_regs *regs,
	231	void *data)
	232	{
	233	struct wireless_dev *wdev = dev->ieee80211_ptr;
	234
	235	regs->version = wdev->wiphy->hw_version;
	236	regs->len = 0;
	237	}
	238
	239	const struct ethtool_ops ieee80211_ethtool_ops = {
	240	.get_drvinfo = cfg80211_get_drvinfo,
	241	.get_regs_len = ieee80211_get_regs_len,
	242	.get_regs = ieee80211_get_regs,
	243	.get_link = ethtool_op_get_link,
	244	.get_ringparam = ieee80211_get_ringparam,
	245	.set_ringparam = ieee80211_set_ringparam,
	246	.get_strings = ieee80211_get_strings,
	247	.get_ethtool_stats = ieee80211_get_stats,
	248	.get_sset_count = ieee80211_get_sset_count,
	249	};