diff options
-rw-r--r-- | include/net/mac80211.h | 7 | ||||
-rw-r--r-- | net/mac80211/cfg.c | 47 | ||||
-rw-r--r-- | net/mac80211/chan.c | 2 | ||||
-rw-r--r-- | net/mac80211/debugfs_netdev.c | 6 | ||||
-rw-r--r-- | net/mac80211/ieee80211_i.h | 12 | ||||
-rw-r--r-- | net/mac80211/iface.c | 38 | ||||
-rw-r--r-- | net/mac80211/main.c | 27 | ||||
-rw-r--r-- | net/mac80211/mlme.c | 32 | ||||
-rw-r--r-- | net/mac80211/trace.h | 2 | ||||
-rw-r--r-- | net/mac80211/util.c | 3 |
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: |