A 6GHz AP can decide to transmit Beacon, Broadcast probe response
and FILS discovery frames in a non-HT duplicate PPDU when
operating in non 20MHz Bandwidth to enhance its discoverability.
(IEEE Std 802.11ax‐2021-26.17.2.2)
Add changes to configure 6GHz non-HT duplicate beacon transmission
based on Duplicate Beacon subfield of 6GHz Operation Information
field of the HE Operation element in Beacon.
Signed-off-by: Rameshkumar Sundaram <quic_ramess@xxxxxxxxxxx>
---
include/net/mac80211.h | 3 +++
net/mac80211/cfg.c | 15 +++++++++++++++
2 files changed, 18 insertions(+)
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index c50221d..1472ca0 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -630,6 +630,8 @@ struct ieee80211_fils_discovery {
* @unsol_bcast_probe_resp_interval: Unsolicited broadcast probe response
* interval.
* @s1g: BSS is S1G BSS (affects Association Request format).
+ * @he_6g_nonht_dup_beacon_set: if set, indicates that HE 6GHz non-HT duplicate
+ * beacon transmission is enabled for this BSS.
* @beacon_tx_rate: The configured beacon transmit rate that needs to be passed
* to driver when rate control is offloaded to firmware.
* @power_type: power type of BSS for 6 GHz
@@ -704,6 +706,7 @@ struct ieee80211_bss_conf {
struct cfg80211_he_bss_color he_bss_color;
struct ieee80211_fils_discovery fils_discovery;
u32 unsol_bcast_probe_resp_interval;
+ bool he_6g_nonht_dup_beacon_set;
bool s1g;
struct cfg80211_bitrate_mask beacon_tx_rate;
enum ieee80211_ap_reg_power power_type;
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 87a2080..077e1bd 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -997,6 +997,9 @@ static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
struct beacon_data *new, *old;
int new_head_len, new_tail_len;
int size, err;
+ const struct element *cap;
+ struct ieee80211_he_operation *he_oper;
+ const struct ieee80211_he_6ghz_oper *he_6ghz_oper;
u32 changed = BSS_CHANGED_BEACON;
old = sdata_dereference(sdata->u.ap.beacon, sdata);
@@ -1084,6 +1087,18 @@ static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
changed |= BSS_CHANGED_FTM_RESPONDER;
}
+ cap = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_OPERATION,
+ params->tail, params->tail_len);
+ if (cap && cap->datalen >= sizeof(*he_oper) + 1) {
+ he_oper = (void *)(cap->data + 1);
+ he_6ghz_oper = ieee80211_he_6ghz_oper(he_oper);
+ if (he_6ghz_oper) {
+ sdata->vif.bss_conf.he_6g_nonht_dup_beacon_set = false;
+ if (he_6ghz_oper->control & IEEE80211_HE_6GHZ_OPER_CTRL_DUP_BEACON)
+ sdata->vif.bss_conf.he_6g_nonht_dup_beacon_set = true;
+ }
+ }
+
rcu_assign_pointer(sdata->u.ap.beacon, new);
if (old)
--
2.7.4
