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-rw-r--r--include/net/mac80211.h7
-rw-r--r--net/mac80211/cfg.c47
-rw-r--r--net/mac80211/chan.c2
-rw-r--r--net/mac80211/debugfs_netdev.c6
-rw-r--r--net/mac80211/ieee80211_i.h12
-rw-r--r--net/mac80211/iface.c38
-rw-r--r--net/mac80211/main.c27
-rw-r--r--net/mac80211/mlme.c32
-rw-r--r--net/mac80211/trace.h2
-rw-r--r--net/mac80211/util.c3
10 files changed, 131 insertions, 45 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 5f5327452c9..dfa589b721b 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -207,6 +207,7 @@ struct ieee80211_chanctx_conf {
* @BSS_CHANGED_SSID: SSID changed for this BSS (AP mode)
* @BSS_CHANGED_AP_PROBE_RESP: Probe Response changed for this BSS (AP mode)
* @BSS_CHANGED_PS: PS changed for this BSS (STA mode)
+ * @BSS_CHANGED_TXPOWER: TX power setting changed for this interface
*/
enum ieee80211_bss_change {
BSS_CHANGED_ASSOC = 1<<0,
@@ -227,6 +228,7 @@ enum ieee80211_bss_change {
BSS_CHANGED_SSID = 1<<15,
BSS_CHANGED_AP_PROBE_RESP = 1<<16,
BSS_CHANGED_PS = 1<<17,
+ BSS_CHANGED_TXPOWER = 1<<18,
/* when adding here, make sure to change ieee80211_reconfig */
};
@@ -309,6 +311,7 @@ enum ieee80211_rssi_event {
* @ssid: The SSID of the current vif. Only valid in AP-mode.
* @ssid_len: Length of SSID given in @ssid.
* @hidden_ssid: The SSID of the current vif is hidden. Only valid in AP-mode.
+ * @txpower: TX power in dBm
*/
struct ieee80211_bss_conf {
const u8 *bssid;
@@ -341,6 +344,7 @@ struct ieee80211_bss_conf {
u8 ssid[IEEE80211_MAX_SSID_LEN];
size_t ssid_len;
bool hidden_ssid;
+ int txpower;
};
/**
@@ -884,7 +888,8 @@ enum ieee80211_smps_mode {
* powersave documentation below. This variable is valid only when
* the CONF_PS flag is set.
*
- * @power_level: requested transmit power (in dBm)
+ * @power_level: requested transmit power (in dBm), backward compatibility
+ * value only that is set to the minimum of all interfaces
*
* @channel: the channel to tune to
* @channel_type: the channel (HT) type
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index a352e4d22dd..986e9a139d4 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1996,33 +1996,46 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy,
enum nl80211_tx_power_setting type, int mbm)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
- struct ieee80211_channel *chan = local->_oper_channel;
- u32 changes = 0;
+ struct ieee80211_sub_if_data *sdata;
- /* FIXME */
- if (local->use_chanctx)
- return -EOPNOTSUPP;
+ if (wdev) {
+ sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+
+ switch (type) {
+ case NL80211_TX_POWER_AUTOMATIC:
+ sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
+ break;
+ case NL80211_TX_POWER_LIMITED:
+ case NL80211_TX_POWER_FIXED:
+ if (mbm < 0 || (mbm % 100))
+ return -EOPNOTSUPP;
+ sdata->user_power_level = MBM_TO_DBM(mbm);
+ break;
+ }
+
+ ieee80211_recalc_txpower(sdata);
+
+ return 0;
+ }
switch (type) {
case NL80211_TX_POWER_AUTOMATIC:
- local->user_power_level = -1;
+ local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
break;
case NL80211_TX_POWER_LIMITED:
- if (mbm < 0 || (mbm % 100))
- return -EOPNOTSUPP;
- local->user_power_level = MBM_TO_DBM(mbm);
- break;
case NL80211_TX_POWER_FIXED:
if (mbm < 0 || (mbm % 100))
return -EOPNOTSUPP;
- /* TODO: move to cfg80211 when it knows the channel */
- if (MBM_TO_DBM(mbm) > chan->max_power)
- return -EINVAL;
local->user_power_level = MBM_TO_DBM(mbm);
break;
}
- ieee80211_hw_config(local, changes);
+ mutex_lock(&local->iflist_mtx);
+ list_for_each_entry(sdata, &local->interfaces, list)
+ sdata->user_power_level = local->user_power_level;
+ list_for_each_entry(sdata, &local->interfaces, list)
+ ieee80211_recalc_txpower(sdata);
+ mutex_unlock(&local->iflist_mtx);
return 0;
}
@@ -2032,8 +2045,12 @@ static int ieee80211_get_tx_power(struct wiphy *wiphy,
int *dbm)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
- *dbm = local->hw.conf.power_level;
+ if (!local->use_chanctx)
+ *dbm = local->hw.conf.power_level;
+ else
+ *dbm = sdata->vif.bss_conf.txpower;
return 0;
}
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index f84b86028a9..a2b06d40aeb 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -173,6 +173,8 @@ static int ieee80211_assign_vif_chanctx(struct ieee80211_sub_if_data *sdata,
rcu_assign_pointer(sdata->vif.chanctx_conf, &ctx->conf);
ctx->refcount++;
+ ieee80211_recalc_txpower(sdata);
+
return 0;
}
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 3393ad5b8ab..07c5721323c 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -168,6 +168,9 @@ IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
IEEE80211_IF_FILE(flags, flags, HEX);
IEEE80211_IF_FILE(state, state, LHEX);
IEEE80211_IF_FILE(channel_type, vif.bss_conf.channel_type, DEC);
+IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
+IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC);
+IEEE80211_IF_FILE(user_power_level, user_power_level, DEC);
/* STA attributes */
IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
@@ -632,6 +635,9 @@ static void add_files(struct ieee80211_sub_if_data *sdata)
DEBUGFS_ADD(flags);
DEBUGFS_ADD(state);
DEBUGFS_ADD(channel_type);
+ DEBUGFS_ADD(txpower);
+ DEBUGFS_ADD(user_power_level);
+ DEBUGFS_ADD(ap_power_level);
if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
add_common_files(sdata);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 3026519b236..a1f7c139308 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -56,6 +56,9 @@ struct ieee80211_local;
#define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
#define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
+/* power level hasn't been configured (or set to automatic) */
+#define IEEE80211_UNSET_POWER_LEVEL INT_MIN
+
/*
* Some APs experience problems when working with U-APSD. Decrease the
* probability of that happening by using legacy mode for all ACs but VO.
@@ -743,6 +746,9 @@ struct ieee80211_sub_if_data {
u8 needed_rx_chains;
enum ieee80211_smps_mode smps_mode;
+ int user_power_level; /* in dBm */
+ int ap_power_level; /* in dBm */
+
/*
* AP this belongs to: self in AP mode and
* corresponding AP in VLAN mode, NULL for
@@ -1117,8 +1123,7 @@ struct ieee80211_local {
int dynamic_ps_user_timeout;
bool disable_dynamic_ps;
- int user_power_level; /* in dBm */
- int ap_power_level; /* in dBm */
+ int user_power_level; /* in dBm, for all interfaces */
enum ieee80211_smps_mode smps_mode;
@@ -1365,6 +1370,9 @@ void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
+bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
+void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
+
static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
{
return test_bit(SDATA_STATE_RUNNING, &sdata->state);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 1a6fe135f20..80ce90b29d9 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -42,6 +42,41 @@
* by either the RTNL, the iflist_mtx or RCU.
*/
+bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_chanctx_conf *chanctx_conf;
+ int power;
+
+ rcu_read_lock();
+ chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+ if (!chanctx_conf) {
+ rcu_read_unlock();
+ return false;
+ }
+
+ power = chanctx_conf->channel->max_power;
+ rcu_read_unlock();
+
+ if (sdata->user_power_level != IEEE80211_UNSET_POWER_LEVEL)
+ power = min(power, sdata->user_power_level);
+
+ if (sdata->ap_power_level != IEEE80211_UNSET_POWER_LEVEL)
+ power = min(power, sdata->ap_power_level);
+
+ if (power != sdata->vif.bss_conf.txpower) {
+ sdata->vif.bss_conf.txpower = power;
+ ieee80211_hw_config(sdata->local, 0);
+ return true;
+ }
+
+ return false;
+}
+
+void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata)
+{
+ if (__ieee80211_recalc_txpower(sdata))
+ ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_TXPOWER);
+}
static u32 ieee80211_idle_off(struct ieee80211_local *local,
const char *reason)
@@ -1510,6 +1545,9 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
ieee80211_set_default_queues(sdata);
+ sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL;
+ sdata->user_power_level = local->user_power_level;
+
/* setup type-dependent data */
ieee80211_setup_sdata(sdata, type);
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index fd8345c2005..70e87600cac 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -95,11 +95,13 @@ static void ieee80211_reconfig_filter(struct work_struct *work)
static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local)
{
+ struct ieee80211_sub_if_data *sdata;
struct ieee80211_channel *chan;
u32 changed = 0;
int power;
enum nl80211_channel_type channel_type;
u32 offchannel_flag;
+ bool scanning = false;
offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
if (local->scan_channel) {
@@ -146,16 +148,18 @@ static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local)
changed |= IEEE80211_CONF_CHANGE_SMPS;
}
- if (test_bit(SCAN_SW_SCANNING, &local->scanning) ||
- test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) ||
- test_bit(SCAN_HW_SCANNING, &local->scanning) ||
- !local->ap_power_level)
- power = chan->max_power;
- else
- power = min(chan->max_power, local->ap_power_level);
+ scanning = test_bit(SCAN_SW_SCANNING, &local->scanning) ||
+ test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning) ||
+ test_bit(SCAN_HW_SCANNING, &local->scanning);
+ power = chan->max_power;
- if (local->user_power_level >= 0)
- power = min(power, local->user_power_level);
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ if (!rcu_access_pointer(sdata->vif.chanctx_conf))
+ continue;
+ power = min(power, sdata->vif.bss_conf.txpower);
+ }
+ rcu_read_unlock();
if (local->hw.conf.power_level != power) {
changed |= IEEE80211_CONF_CHANGE_POWER;
@@ -600,7 +604,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
wiphy->features |= NL80211_FEATURE_SK_TX_STATUS |
NL80211_FEATURE_SAE |
- NL80211_FEATURE_HT_IBSS;
+ NL80211_FEATURE_HT_IBSS |
+ NL80211_FEATURE_VIF_TXPOWER;
if (!ops->hw_scan)
wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN |
@@ -633,7 +638,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS |
IEEE80211_RADIOTAP_MCS_HAVE_GI |
IEEE80211_RADIOTAP_MCS_HAVE_BW;
- local->user_power_level = -1;
+ local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask;
INIT_LIST_HEAD(&local->interfaces);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 1d1fdf0791f..d29762fdd88 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -820,10 +820,10 @@ void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
cbss->beacon_interval));
}
-static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_channel *channel,
- const u8 *country_ie, u8 country_ie_len,
- const u8 *pwr_constr_elem)
+static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_channel *channel,
+ const u8 *country_ie, u8 country_ie_len,
+ const u8 *pwr_constr_elem)
{
struct ieee80211_country_ie_triplet *triplet;
int chan = ieee80211_frequency_to_channel(channel->center_freq);
@@ -832,7 +832,7 @@ static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
/* Invalid IE */
if (country_ie_len % 2 || country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN)
- return;
+ return 0;
triplet = (void *)(country_ie + 3);
country_ie_len -= 3;
@@ -873,19 +873,21 @@ static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
}
if (!have_chan_pwr)
- return;
+ return 0;
new_ap_level = max_t(int, 0, chan_pwr - *pwr_constr_elem);
- if (sdata->local->ap_power_level == new_ap_level)
- return;
+ if (sdata->ap_power_level == new_ap_level)
+ return 0;
sdata_info(sdata,
"Limiting TX power to %d (%d - %d) dBm as advertised by %pM\n",
new_ap_level, chan_pwr, *pwr_constr_elem,
sdata->u.mgd.bssid);
- sdata->local->ap_power_level = new_ap_level;
- ieee80211_hw_config(sdata->local, 0);
+ sdata->ap_power_level = new_ap_level;
+ if (__ieee80211_recalc_txpower(sdata))
+ return BSS_CHANGED_TXPOWER;
+ return 0;
}
void ieee80211_enable_dyn_ps(struct ieee80211_vif *vif)
@@ -1489,7 +1491,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa));
memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask));
- local->ap_power_level = 0;
+ sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL;
del_timer_sync(&local->dynamic_ps_timer);
cancel_work_sync(&local->dynamic_ps_enable_work);
@@ -2623,10 +2625,10 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
if (elems.country_elem && elems.pwr_constr_elem &&
mgmt->u.probe_resp.capab_info &
cpu_to_le16(WLAN_CAPABILITY_SPECTRUM_MGMT))
- ieee80211_handle_pwr_constr(sdata, chan,
- elems.country_elem,
- elems.country_elem_len,
- elems.pwr_constr_elem);
+ changed |= ieee80211_handle_pwr_constr(sdata, chan,
+ elems.country_elem,
+ elems.country_elem_len,
+ elems.pwr_constr_elem);
ieee80211_bss_info_change_notify(sdata, changed);
}
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 5e74e77cba9..eeebbd9cb88 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -342,6 +342,7 @@ TRACE_EVENT(drv_bss_info_changed,
__field(bool, ps);
__dynamic_array(u8, ssid, info->ssid_len);
__field(bool, hidden_ssid);
+ __field(int, txpower)
),
TP_fast_assign(
@@ -376,6 +377,7 @@ TRACE_EVENT(drv_bss_info_changed,
__entry->ps = info->ps;
memcpy(__get_dynamic_array(ssid), info->ssid, info->ssid_len);
__entry->hidden_ssid = info->hidden_ssid;
+ __entry->txpower = info->txpower;
),
TP_printk(
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 6636d396231..1a511afbdf0 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1478,7 +1478,8 @@ int ieee80211_reconfig(struct ieee80211_local *local)
BSS_CHANGED_BSSID |
BSS_CHANGED_CQM |
BSS_CHANGED_QOS |
- BSS_CHANGED_IDLE;
+ BSS_CHANGED_IDLE |
+ BSS_CHANGED_TXPOWER;
switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION:
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-16 09:08:18 +0000