aboutsummaryrefslogtreecommitdiff
path: root/net/mac80211
diff options
context:
space:
mode:
authorSara Sharon2015-12-08 16:04:31 +0200
committerJohannes Berg2016-01-14 11:13:10 +0100
commit23a1f8d44c0bca48f04fc2a2f1edafd826ce6133 (patch)
tree163f582943bbaeadd9703a9050b9a677ac47218c /net/mac80211
parentc799ba6eab7a1bf02792e2ced933be3ae5f8daa2 (diff)
mac80211: process and save VHT MU-MIMO group frame
The Group ID Management frame is an Action frame of category VHT. It is transmitted by the AP to assign or change the user position of a STA for one or more group IDs. Process and save the group membership data. Notify underlying driver of changes. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/ieee80211_i.h2
-rw-r--r--net/mac80211/iface.c10
-rw-r--r--net/mac80211/mlme.c7
-rw-r--r--net/mac80211/rx.c5
-rw-r--r--net/mac80211/util.c3
-rw-r--r--net/mac80211/vht.c25
6 files changed, 52 insertions, 0 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b84f6aa32c08..747402d8c7a9 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1714,6 +1714,8 @@ 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);
+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,
struct sta_info *sta, u8 opmode,
enum ieee80211_band band);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index c9e325d2e120..33ae3c81bfc5 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1271,6 +1271,16 @@ static void ieee80211_iface_work(struct work_struct *work)
}
}
mutex_unlock(&local->sta_mtx);
+ } else if (ieee80211_is_action(mgmt->frame_control) &&
+ mgmt->u.action.category == WLAN_CATEGORY_VHT) {
+ switch (mgmt->u.action.u.vht_group_notif.action_code) {
+ case WLAN_VHT_ACTION_GROUPID_MGMT:
+ ieee80211_process_mu_groups(sdata, mgmt);
+ break;
+ default:
+ WARN_ON(1);
+ break;
+ }
} else if (ieee80211_is_data_qos(mgmt->frame_control)) {
struct ieee80211_hdr *hdr = (void *)mgmt;
/*
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 1c342e2592c4..31d5881b31fa 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2079,6 +2079,13 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask));
memset(&ifmgd->vht_capa, 0, sizeof(ifmgd->vht_capa));
memset(&ifmgd->vht_capa_mask, 0, sizeof(ifmgd->vht_capa_mask));
+
+ /* reset MU-MIMO ownership and group data */
+ memset(sdata->vif.bss_conf.mu_group.membership, 0,
+ sizeof(sdata->vif.bss_conf.mu_group.membership));
+ memset(sdata->vif.bss_conf.mu_group.position, 0,
+ sizeof(sdata->vif.bss_conf.mu_group.position));
+ changed |= BSS_CHANGED_MU_GROUPS;
sdata->flags &= ~IEEE80211_SDATA_MU_MIMO_OWNER;
sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index bc081850ac0e..a5668b54015f 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2738,6 +2738,11 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
opmode, status->band);
goto handled;
}
+ case WLAN_VHT_ACTION_GROUPID_MGMT: {
+ if (len < IEEE80211_MIN_ACTION_SIZE + 25)
+ goto invalid;
+ goto queue;
+ }
default:
break;
}
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 3943d4bf289c..f4b2c04e7d81 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1928,6 +1928,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
BSS_CHANGED_IDLE |
BSS_CHANGED_TXPOWER;
+ if (sdata->flags & IEEE80211_SDATA_MU_MIMO_OWNER)
+ changed |= BSS_CHANGED_MU_GROUPS;
+
switch (sdata->vif.type) {
case NL80211_IFTYPE_STATION:
changed |= BSS_CHANGED_ASSOC |
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index c38b2f07a919..050de08bf82e 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -1,6 +1,9 @@
/*
* VHT handling
*
+ * Portions of this file
+ * Copyright(c) 2015 Intel Deutschland GmbH
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
@@ -425,6 +428,28 @@ u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
return changed;
}
+void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_mgmt *mgmt)
+{
+ struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
+
+ if (!(sdata->flags & IEEE80211_SDATA_MU_MIMO_OWNER))
+ return;
+
+ if (!memcmp(mgmt->u.action.u.vht_group_notif.position,
+ bss_conf->mu_group.position, WLAN_USER_POSITION_LEN) &&
+ !memcmp(mgmt->u.action.u.vht_group_notif.membership,
+ bss_conf->mu_group.membership, WLAN_MEMBERSHIP_LEN))
+ return;
+
+ memcpy(mgmt->u.action.u.vht_group_notif.membership,
+ bss_conf->mu_group.membership, WLAN_MEMBERSHIP_LEN);
+ memcpy(mgmt->u.action.u.vht_group_notif.position,
+ bss_conf->mu_group.position, WLAN_USER_POSITION_LEN);
+
+ ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
+}
+
void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
struct sta_info *sta, u8 opmode,
enum ieee80211_band band)