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From:   Muna Sinada <quic_msinada@quicinc.com>
To:     <johannes@sipsolutions.net>
CC:     <linux-wireless@vger.kernel.org>,
        Muna Sinada <quic_msinada@quicinc.com>
Subject: [PATCH v4 1/2] mac80211: Add VHT MU-MIMO related flags in ieee80211_bss_conf
Date:   Wed, 5 Oct 2022 14:54:45 -0700
Message-ID: <1665006886-23874-1-git-send-email-quic_msinada@quicinc.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

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>
---
 include/net/mac80211.h | 13 +++++++++++++
 net/mac80211/cfg.c     | 15 +++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index ac2bad57933f..d30cb1e9d180 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -652,6 +652,14 @@ 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;
@@ -725,6 +733,11 @@ 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;
 };
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 687b4c878d4a..293640b9da13 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1251,6 +1251,21 @@ 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 =
-- 
2.7.4