wifi: mac80211: Add VHT MU-MIMO related flags in ieee80211_bss_conf

Adding flags for SU Beamformer, SU Beamformee, MU Beamformer and
MU Beamformee for VHT. This is utilized to pass MU-MIMO
configurations from user space to driver in AP mode.
Signed-off-by: Muna Sinada <quic_msinada@quicinc.com>
Link: https://lore.kernel.org/r/1665006886-23874-1-git-send-email-quic_msinada@quicinc.com
[fixed indentation, removed redundant !!]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

include/net/mac80211.h

@@ -653,6 +653,14 @@ struct ieee80211_fils_discovery {
  *	write-protected by sdata_lock and local->mtx so holding either is fine
  *	for read access.
  * @color_change_color: the bss color that will be used after the change.
+ * @vht_su_beamformer: in AP mode, does this BSS support operation as an VHT SU
+ *	beamformer
+ * @vht_su_beamformee: in AP mode, does this BSS support operation as an VHT SU
+ *	beamformee
+ * @vht_mu_beamformer: in AP mode, does this BSS support operation as an VHT MU
+ *	beamformer
+ * @vht_mu_beamformee: in AP mode, does this BSS support operation as an VHT MU
+ *	beamformee
  */
 struct ieee80211_bss_conf {
 	const u8 *bssid;
@@ -726,6 +734,11 @@ struct ieee80211_bss_conf {
 
 	bool color_change_active;
 	u8 color_change_color;
+
+	bool vht_su_beamformer;
+	bool vht_su_beamformee;
+	bool vht_mu_beamformer;
+	bool vht_mu_beamformee;
 };
 
 /**

net/mac80211/cfg.c

@@ -1252,6 +1252,21 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	prev_beacon_int = link_conf->beacon_int;
 	link_conf->beacon_int = params->beacon_interval;
 
+	if (params->vht_cap) {
+		link_conf->vht_su_beamformer =
+			params->vht_cap->vht_cap_info &
+				cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE);
+		link_conf->vht_su_beamformee =
+			params->vht_cap->vht_cap_info &
+				cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE);
+		link_conf->vht_mu_beamformer =
+			params->vht_cap->vht_cap_info &
+				cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);
+		link_conf->vht_mu_beamformee =
+			params->vht_cap->vht_cap_info &
+				cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE);
+	}
+
 	if (params->he_cap && params->he_oper) {
 		link_conf->he_support = true;
 		link_conf->htc_trig_based_pkt_ext =