mac80211: backport AP mode TWT support

Required for an upcoming mt76 update Signed-off-by: Felix Fietkau <nbd@nbd.name>
musashino-build · Oct 11, 2021 · 978e822 · 978e822
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commit 978e822
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diff --git a/package/kernel/mac80211/patches/subsys/389-ieee80211-add-TWT-element-definitions.patch b/package/kernel/mac80211/patches/subsys/389-ieee80211-add-TWT-element-definitions.patch
@@ -0,0 +1,112 @@
+From: Lorenzo Bianconi <lorenzo@kernel.org>
+Date: Mon, 23 Aug 2021 20:02:38 +0200
+Subject: [PATCH] ieee80211: add TWT element definitions
+
+Introduce TWT definitions and TWT Information element structure
+in ieee80211.h
+
+Tested-by: Peter Chiu <chui-hao.chiu@mediatek.com>
+Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
+Link: https://lore.kernel.org/r/71d8b581fe4b5abc5b92f8d77ac2de3e2f7591b6.1629741512.git.lorenzo@kernel.org
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+
+--- a/include/linux/ieee80211.h
++++ b/include/linux/ieee80211.h
+@@ -1088,6 +1088,48 @@ struct ieee80211_ext {
+ 	} u;
+ } __packed __aligned(2);
+
++#define IEEE80211_TWT_CONTROL_NDP			BIT(0)
++#define IEEE80211_TWT_CONTROL_RESP_MODE			BIT(1)
++#define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST	BIT(3)
++#define IEEE80211_TWT_CONTROL_RX_DISABLED		BIT(4)
++#define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT		BIT(5)
++
++#define IEEE80211_TWT_REQTYPE_REQUEST			BIT(0)
++#define IEEE80211_TWT_REQTYPE_SETUP_CMD			GENMASK(3, 1)
++#define IEEE80211_TWT_REQTYPE_TRIGGER			BIT(4)
++#define IEEE80211_TWT_REQTYPE_IMPLICIT			BIT(5)
++#define IEEE80211_TWT_REQTYPE_FLOWTYPE			BIT(6)
++#define IEEE80211_TWT_REQTYPE_FLOWID			GENMASK(9, 7)
++#define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP		GENMASK(14, 10)
++#define IEEE80211_TWT_REQTYPE_PROTECTION		BIT(15)
++
++enum ieee80211_twt_setup_cmd {
++	TWT_SETUP_CMD_REQUEST,
++	TWT_SETUP_CMD_SUGGEST,
++	TWT_SETUP_CMD_DEMAND,
++	TWT_SETUP_CMD_GROUPING,
++	TWT_SETUP_CMD_ACCEPT,
++	TWT_SETUP_CMD_ALTERNATE,
++	TWT_SETUP_CMD_DICTATE,
++	TWT_SETUP_CMD_REJECT,
++};
++
++struct ieee80211_twt_params {
++	__le16 req_type;
++	__le64 twt;
++	u8 min_twt_dur;
++	__le16 mantissa;
++	u8 channel;
++} __packed;
++
++struct ieee80211_twt_setup {
++	u8 dialog_token;
++	u8 element_id;
++	u8 length;
++	u8 control;
++	u8 params[];
++} __packed;
++
+ struct ieee80211_mgmt {
+ 	__le16 frame_control;
+ 	__le16 duration;
+@@ -1252,6 +1294,10 @@ struct ieee80211_mgmt {
+ 					__le16 toa_error;
+ 					u8 variable[0];
+ 				} __packed ftm;
++				struct {
++					u8 action_code;
++					u8 variable[];
++				} __packed s1g;
+ 			} u;
+ 		} __packed action;
+ 	} u;
+@@ -2880,6 +2926,7 @@ enum ieee80211_eid {
+ 	WLAN_EID_AID_RESPONSE = 211,
+ 	WLAN_EID_S1G_BCN_COMPAT = 213,
+ 	WLAN_EID_S1G_SHORT_BCN_INTERVAL = 214,
++	WLAN_EID_S1G_TWT = 216,
+ 	WLAN_EID_S1G_CAPABILITIES = 217,
+ 	WLAN_EID_VENDOR_SPECIFIC = 221,
+ 	WLAN_EID_QOS_PARAMETER = 222,
+@@ -2948,6 +2995,7 @@ enum ieee80211_category {
+ 	WLAN_CATEGORY_FST = 18,
+ 	WLAN_CATEGORY_UNPROT_DMG = 20,
+ 	WLAN_CATEGORY_VHT = 21,
++	WLAN_CATEGORY_S1G = 22,
+ 	WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
+ 	WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
+ };
+@@ -3021,6 +3069,20 @@ enum ieee80211_key_len {
+ 	WLAN_KEY_LEN_BIP_GMAC_256 = 32,
+ };
+
++enum ieee80211_s1g_actioncode {
++	WLAN_S1G_AID_SWITCH_REQUEST,
++	WLAN_S1G_AID_SWITCH_RESPONSE,
++	WLAN_S1G_SYNC_CONTROL,
++	WLAN_S1G_STA_INFO_ANNOUNCE,
++	WLAN_S1G_EDCA_PARAM_SET,
++	WLAN_S1G_EL_OPERATION,
++	WLAN_S1G_TWT_SETUP,
++	WLAN_S1G_TWT_TEARDOWN,
++	WLAN_S1G_SECT_GROUP_ID_LIST,
++	WLAN_S1G_SECT_ID_FEEDBACK,
++	WLAN_S1G_TWT_INFORMATION = 11,
++};
++
+ #define IEEE80211_WEP_IV_LEN		4
+ #define IEEE80211_WEP_ICV_LEN		4
+ #define IEEE80211_CCMP_HDR_LEN		8