From 65554d07adfc22bb9e14f6df8c609a646f869a74 Mon Sep 17 00:00:00 2001 From: Sara Sharon Date: Tue, 16 Feb 2016 12:48:17 +0200 Subject: [PATCH] mac80211: provide interface to driver to set VHT MU-MIMO data Provide an interface to the lower level driver to set the VHT MU-MIMO data. This is needed for example when there is an update of the group data during low power state, where the management frame will not be passed to the host at all. Signed-off-by: Sara Sharon Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg --- include/net/mac80211.h | 15 +++++++++++++++ net/mac80211/vht.c | 16 +++++++++++++++- 2 files changed, 30 insertions(+), 1 deletion(-) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 66155d3ad7e6..23f2a5ecf669 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -5445,6 +5445,21 @@ ieee80211_vif_type_p2p(struct ieee80211_vif *vif) return ieee80211_iftype_p2p(vif->type, vif->p2p); } +/** + * ieee80211_update_mu_groups - set the VHT MU-MIMO groud data + * + * @vif: the specified virtual interface + * @membership: 64 bits array - a bit is set if station is member of the group + * @position: 2 bits per group id indicating the position in the group + * + * Note: This function assumes that the given vif is valid and the position and + * membership data is of the correct size and are in the same byte order as the + * matching GroupId management frame. + * Calls to this function need to be serialized with RX path. + */ +void ieee80211_update_mu_groups(struct ieee80211_vif *vif, + const u8 *membership, const u8 *position); + void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, int rssi_min_thold, int rssi_max_thold); diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c index 341d192cea52..f8f161179b5d 100644 --- a/net/mac80211/vht.c +++ b/net/mac80211/vht.c @@ -2,7 +2,7 @@ * VHT handling * * Portions of this file - * Copyright(c) 2015 Intel Deutschland GmbH + * Copyright(c) 2015 - 2016 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 @@ -469,6 +469,20 @@ void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata, ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); } +void ieee80211_update_mu_groups(struct ieee80211_vif *vif, + const u8 *membership, const u8 *position) +{ + struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); + struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; + + if (WARN_ON_ONCE(!(sdata->flags & IEEE80211_SDATA_MU_MIMO_OWNER))) + return; + + memcpy(bss_conf->mu_group.membership, membership, WLAN_MEMBERSHIP_LEN); + memcpy(bss_conf->mu_group.position, position, WLAN_USER_POSITION_LEN); +} +EXPORT_SYMBOL_GPL(ieee80211_update_mu_groups); + void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, struct sta_info *sta, u8 opmode, enum ieee80211_band band) -- 2.20.1