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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 v2 1/2] mac80211: Add VHT MU-MIMO related flags in ieee80211_bss_conf
Date:   Tue, 5 Jul 2022 15:03:05 -0700
Message-ID: <1657058586-4621-1-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.

Signed-off-by: Muna Sinada <quic_msinada@quicinc.com>
---
 include/net/mac80211.h |  8 ++++++++
 net/mac80211/cfg.c     | 15 +++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index ebadb2103968..ef4133091d41 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -636,6 +636,10 @@ struct ieee80211_fils_discovery {
  * @tx_pwr_env_num: number of @tx_pwr_env.
  * @pwr_reduction: power constraint of BSS.
  * @eht_support: does this BSS support EHT
+ * @vht_su_beamformer: does this BSS support operation as an VHT SU beamformer
+ * @vht_su_beamformee: does this BSS support operation as an VHT SU beamformee
+ * @vht_mu_beamformer: does this BSS support operation as an VHT MU beamformer
+ * @vht_mu_beamformee: does this BSS support operation as an VHT MU beamformee
  */
 struct ieee80211_bss_conf {
 	const u8 *bssid;
@@ -711,6 +715,10 @@ struct ieee80211_bss_conf {
 	u8 tx_pwr_env_num;
 	u8 pwr_reduction;
 	bool eht_support;
+	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 f7896f257e1b..76418bb360fa 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1164,6 +1164,21 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	prev_beacon_int = sdata->vif.bss_conf.beacon_int;
 	sdata->vif.bss_conf.beacon_int = params->beacon_interval;
 
+	if (params->vht_cap) {
+		sdata->vif.bss_conf.vht_su_beamformer =
+		       !!(ap_vht_cap->vht_cap_info &
+			  cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE));
+		sdata->vif.bss_conf.vht_su_beamformee =
+		       !!(ap_vht_cap->vht_cap_info &
+			  cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE));
+		sdata->vif.bss_conf.vht_mu_beamformer =
+		       !!(ap_vht_cap->vht_cap_info &
+			  cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE));
+		sdata->vif.bss_conf.vht_mu_beamformee =
+		       !!(ap_vht_cap->vht_cap_info &
+			  cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE));
+	}
+
 	if (params->he_cap && params->he_oper) {
 		sdata->vif.bss_conf.he_support = true;
 		sdata->vif.bss_conf.htc_trig_based_pkt_ext =
-- 
2.7.4