wlan-ap-Telecominfraproject/feeds/qca/hostapd/patches/q02-031-ru_puncturing-retrieve-driver-support.patch

From 74cd6b31e4300bd70dd67ecfeab07231fb3436d2 Mon Sep 17 00:00:00 2001
From: Muna Sinada <quic_msinada@quicinc.com>
Date: Wed, 8 Dec 2021 23:11:27 -0800
Subject: [PATCH 1/6] ru_puncturing: retrieve driver support

Retrieve the driver support for RU puncturing which is advertised
using the attribute NL80211_ATTR_RU_PUNCT_SUPP_BW.
Value indicates the bandwidths in which puncturing is supported -
80 MHz, 160 MHz or 320 MHz.

Absence of the attribute or the value 0 means the driver does not
support this feature.

Signed-off-by: Muna Sinada <quic_msinada@quicinc.com>
Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
---
 hostapd/main.c                    |  1 +
 src/ap/hostapd.h                  |  3 +++
 src/drivers/driver.h              |  3 +++
 src/drivers/driver_nl80211_capa.c | 18 ++++++++++++++++++
 src/drivers/nl80211_copy.h        | 12 ++++++++++++
 5 files changed, 37 insertions(+)

diff --git a/hostapd/main.c b/hostapd/main.c
index 46aa151..b155a5f 100644
--- a/hostapd/main.c
+++ b/hostapd/main.c
@@ -309,6 +309,7 @@ setup_mld:
 		iface->extended_capa_mask = capa.extended_capa_mask;
 		iface->extended_capa_len = capa.extended_capa_len;
 		iface->drv_max_acl_mac_addrs = capa.max_acl_mac_addrs;
+		iface->ru_punct_supp_bw = capa.ru_punct_supp_bw;
 
 		/*
 		 * Override extended capa with per-interface type (AP), if
diff --git a/src/ap/hostapd.h b/src/ap/hostapd.h
index fc3fe6e..d3aaf40 100644
--- a/src/ap/hostapd.h
+++ b/src/ap/hostapd.h
@@ -682,6 +682,9 @@ struct hostapd_iface {
 	/* Maximum profile periodicity for enhanced MBSSID advertisement */
 	unsigned int ema_max_periodicity;
 
+	/* Minimum bandwidth the driver supports RU puncturing */
+	u8 ru_punct_supp_bw;
+
 	int (*enable_iface_cb)(struct hostapd_iface *iface);
 	int (*disable_iface_cb)(struct hostapd_iface *iface);
 
diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index a9c8e9c..aaf04ab 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -2443,6 +2443,9 @@ struct wpa_driver_capa {
 	unsigned int mbssid_max_interfaces;
 	/* Maximum profile periodicity for enhanced MBSSID advertisement */
 	unsigned int ema_max_periodicity;
+
+	/* Minimum bandwidth the driver supports RU Puncturing */
+	u8 ru_punct_supp_bw;
 };
 
 
diff --git a/src/drivers/driver_nl80211_capa.c b/src/drivers/driver_nl80211_capa.c
index 8693d7f..b4f1f5e 100644
--- a/src/drivers/driver_nl80211_capa.c
+++ b/src/drivers/driver_nl80211_capa.c
@@ -1155,6 +1155,24 @@ static int wiphy_info_handler(struct nl_msg *msg, void *arg)
 	if (tb[NL80211_ATTR_MBSSID_CONFIG])
 		wiphy_info_mbssid(capa, tb[NL80211_ATTR_MBSSID_CONFIG]);
 
+	if (tb[NL80211_ATTR_RU_PUNCT_SUPP_BW]) {
+		u8 supp_bw = nla_get_u8(tb[NL80211_ATTR_RU_PUNCT_SUPP_BW]);
+
+		switch (supp_bw) {
+		case NL80211_RU_PUNCT_SUPP_BW_80:
+			capa->ru_punct_supp_bw = CONF_OPER_CHWIDTH_80MHZ;
+			break;
+		case NL80211_RU_PUNCT_SUPP_BW_160:
+			capa->ru_punct_supp_bw = CONF_OPER_CHWIDTH_160MHZ;
+			break;
+		case NL80211_RU_PUNCT_SUPP_BW_320:
+			capa->ru_punct_supp_bw = CONF_OPER_CHWIDTH_320MHZ;
+			break;
+		default:
+			break;
+		}
+	}
+
 	if (tb[NL80211_ATTR_MLO_SUPPORT])
 		capa->flags2 |= WPA_DRIVER_FLAGS2_MLO;
 
diff --git a/src/drivers/nl80211_copy.h b/src/drivers/nl80211_copy.h
index 8bd1f69..ce325cf 100644
--- a/src/drivers/nl80211_copy.h
+++ b/src/drivers/nl80211_copy.h
@@ -3378,7 +3378,11 @@ enum nl80211_attrs {
 
        NL80211_ATTR_AWGN_INTERFERENCE_BITMAP,
 
-	/* add attributes here, update the policy in nl80211.c */
+	NL80211_ATTR_RU_PUNCT_SUPP_BW,
+	NL80211_ATTR_RU_PUNCT_SUPP_HE,
+	NL80211_ATTR_RU_PUNCT_BITMAP,
+
+/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
 	NUM_NL80211_ATTR = __NL80211_ATTR_AFTER_LAST,
@@ -7901,4 +7905,12 @@ enum nl80211_beacon_tx_mode {
        NL80211_BEACON_STAGGERED_MODE = 1,
        NL80211_BEACON_BURST_MODE = 2,
 };
+
+enum nl80211_ru_punct_supp_bw {
+	NL80211_RU_PUNCT_NOT_SUPP,
+	NL80211_RU_PUNCT_SUPP_BW_80,
+	NL80211_RU_PUNCT_SUPP_BW_160,
+	NL80211_RU_PUNCT_SUPP_BW_320,
+};
+
 #endif /* __LINUX_NL80211_H */