[PATCH 151/379][SRU][OEM-5.6] ieee80211: definitions for reduced neighbor reports

[You-Sheng Yang]

From: Tova Mussai <tova.mussai at intel.com>

BugLink: https://bugs.launchpad.net/bugs/1879633

Add the necessary definitions to parse reduced neighbor
report elements.

Signed-off-by: Tova Mussai <tova.mussai at intel.com>
[change struct name, remove IEEE80211_MIN_AP_NEIGHBOR_INFO_SIZE]
Link: https://lore.kernel.org/r/20200528213443.4f9154461c06.I518d9898ad982f838112ea9ca14a20d6bbb16394@changeid
Signed-off-by: Johannes Berg <johannes.berg at intel.com>
(backported from commit 372b38ea5911fc2500f0291b00140e80a26c0e36)
Signed-off-by: You-Sheng Yang <vicamo.yang at canonical.com>
---
 include/linux/ieee80211.h | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 624d2643bfba..17564f1c12e5 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -2525,6 +2525,8 @@ enum ieee80211_eid {
 	WLAN_EID_QUIET_CHANNEL = 198,
 	WLAN_EID_OPMODE_NOTIF = 199,
 
+	WLAN_EID_REDUCED_NEIGHBOR_REPORT = 201,
+
 	WLAN_EID_VENDOR_SPECIFIC = 221,
 	WLAN_EID_QOS_PARAMETER = 222,
 	WLAN_EID_CAG_NUMBER = 237,
@@ -3421,4 +3423,30 @@ static inline bool for_each_element_completed(const struct element *element,
 	return (const u8 *)element == (const u8 *)data + datalen;
 }
 
+/*
+ * reduced neighbor report, based on Draft P802.11ax_D5.0,
+ * section 9.4.2.170
+ */
+#define IEEE80211_AP_INFO_TBTT_HDR_TYPE				0x03
+#define IEEE80211_AP_INFO_TBTT_HDR_FILTERED			0x04
+#define IEEE80211_AP_INFO_TBTT_HDR_COLOC			0x08
+#define IEEE80211_AP_INFO_TBTT_HDR_COUNT			0xF0
+#define IEEE80211_TBTT_INFO_OFFSET_BSSID_BSS_PARAM		8
+#define IEEE80211_TBTT_INFO_OFFSET_BSSID_SSSID_BSS_PARAM	12
+
+#define IEEE80211_RNR_TBTT_PARAMS_OCT_RECOMMENDED		0x01
+#define IEEE80211_RNR_TBTT_PARAMS_SAME_SSID			0x02
+#define IEEE80211_RNR_TBTT_PARAMS_MULTI_BSSID			0x04
+#define IEEE80211_RNR_TBTT_PARAMS_TRANSMITTED_BSSID		0x08
+#define IEEE80211_RNR_TBTT_PARAMS_COLOC_ESS			0x10
+#define IEEE80211_RNR_TBTT_PARAMS_PROBE_ACTIVE			0x20
+#define IEEE80211_RNR_TBTT_PARAMS_COLOC_AP			0x40
+
+struct ieee80211_neighbor_ap_info {
+       u8 tbtt_info_hdr;
+       u8 tbtt_info_len;
+       u8 op_class;
+       u8 channel;
+} __packed;
+
 #endif /* LINUX_IEEE80211_H */
-- 
2.29.2