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-rw-r--r--net/mac80211/ieee80211_i.h4
-rw-r--r--net/mac80211/tdls.c38
-rw-r--r--net/mac80211/vht.c30
3 files changed, 61 insertions, 11 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 804575ff7af5..422003540169 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1719,6 +1719,10 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
void ieee80211_sta_set_rx_nss(struct sta_info *sta);
+enum ieee80211_sta_rx_bandwidth
+ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
+enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
+void ieee80211_sta_set_rx_nss(struct sta_info *sta);
void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt);
u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index 43f13abe89c7..eed1152efb42 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -4,7 +4,7 @@
* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2014, Intel Corporation
* Copyright 2014 Intel Mobile Communications GmbH
- * Copyright 2015 Intel Deutschland GmbH
+ * Copyright 2015 - 2016 Intel Deutschland GmbH
*
* This file is GPLv2 as found in COPYING.
*/
@@ -15,6 +15,7 @@
#include <linux/rtnetlink.h>
#include "ieee80211_i.h"
#include "driver-ops.h"
+#include "rate.h"
/* give usermode some time for retries in setting up the TDLS session */
#define TDLS_PEER_SETUP_TIMEOUT (15 * HZ)
@@ -302,7 +303,7 @@ ieee80211_tdls_chandef_vht_upgrade(struct ieee80211_sub_if_data *sdata,
/* IEEE802.11ac-2013 Table E-4 */
u16 centers_80mhz[] = { 5210, 5290, 5530, 5610, 5690, 5775 };
struct cfg80211_chan_def uc = sta->tdls_chandef;
- enum nl80211_chan_width max_width = ieee80211_get_sta_bw(&sta->sta);
+ enum nl80211_chan_width max_width = ieee80211_sta_cap_chan_bw(sta);
int i;
/* only support upgrading non-narrow channels up to 80Mhz */
@@ -1242,18 +1243,44 @@ int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
return ret;
}
-static void iee80211_tdls_recalc_chanctx(struct ieee80211_sub_if_data *sdata)
+static void iee80211_tdls_recalc_chanctx(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_chanctx_conf *conf;
struct ieee80211_chanctx *ctx;
+ enum nl80211_chan_width width;
+ struct ieee80211_supported_band *sband;
mutex_lock(&local->chanctx_mtx);
conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
lockdep_is_held(&local->chanctx_mtx));
if (conf) {
+ width = conf->def.width;
+ sband = local->hw.wiphy->bands[conf->def.chan->band];
ctx = container_of(conf, struct ieee80211_chanctx, conf);
ieee80211_recalc_chanctx_chantype(local, ctx);
+
+ /* if width changed and a peer is given, update its BW */
+ if (width != conf->def.width && sta &&
+ test_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW)) {
+ enum ieee80211_sta_rx_bandwidth bw;
+
+ bw = ieee80211_chan_width_to_rx_bw(conf->def.width);
+ bw = min(bw, ieee80211_sta_cap_rx_bw(sta));
+ if (bw != sta->sta.bandwidth) {
+ sta->sta.bandwidth = bw;
+ rate_control_rate_update(local, sband, sta,
+ IEEE80211_RC_BW_CHANGED);
+ /*
+ * if a TDLS peer BW was updated, we need to
+ * recalc the chandef width again, to get the
+ * correct chanctx min_def
+ */
+ ieee80211_recalc_chanctx_chantype(local, ctx);
+ }
+ }
+
}
mutex_unlock(&local->chanctx_mtx);
}
@@ -1350,8 +1377,6 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
break;
}
- iee80211_tdls_recalc_chanctx(sdata);
-
mutex_lock(&local->sta_mtx);
sta = sta_info_get(sdata, peer);
if (!sta) {
@@ -1360,6 +1385,7 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
break;
}
+ iee80211_tdls_recalc_chanctx(sdata, sta);
iee80211_tdls_recalc_ht_protection(sdata, sta);
set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
@@ -1390,7 +1416,7 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
iee80211_tdls_recalc_ht_protection(sdata, NULL);
mutex_unlock(&local->sta_mtx);
- iee80211_tdls_recalc_chanctx(sdata);
+ iee80211_tdls_recalc_chanctx(sdata, NULL);
break;
default:
ret = -ENOTSUPP;
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index 89e04d55aa18..e590e2ef9eaf 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -319,7 +319,30 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta)
return IEEE80211_STA_RX_BW_80;
}
-static enum ieee80211_sta_rx_bandwidth
+enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta)
+{
+ struct ieee80211_sta_vht_cap *vht_cap = &sta->sta.vht_cap;
+ u32 cap_width;
+
+ if (!vht_cap->vht_supported) {
+ if (!sta->sta.ht_cap.ht_supported)
+ return NL80211_CHAN_WIDTH_20_NOHT;
+
+ return sta->sta.ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 ?
+ NL80211_CHAN_WIDTH_40 : NL80211_CHAN_WIDTH_20;
+ }
+
+ cap_width = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK;
+
+ if (cap_width == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ)
+ return NL80211_CHAN_WIDTH_160;
+ else if (cap_width == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ)
+ return NL80211_CHAN_WIDTH_80P80;
+
+ return NL80211_CHAN_WIDTH_80;
+}
+
+enum ieee80211_sta_rx_bandwidth
ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width)
{
switch (width) {
@@ -347,10 +370,7 @@ enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta)
bw = ieee80211_sta_cap_rx_bw(sta);
bw = min(bw, sta->cur_max_bandwidth);
-
- /* do not cap the BW of TDLS WIDER_BW peers by the bss */
- if (!test_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW))
- bw = min(bw, ieee80211_chan_width_to_rx_bw(bss_width));
+ bw = min(bw, ieee80211_chan_width_to_rx_bw(bss_width));
return bw;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 14:38:26 +0100