diff mbox series

[v2,2/4] wifi: mac80211: S1G beacon/short beacon support

Message ID 20221109003727.614882-2-gilad.itzkovitch@morsemicro.com (mailing list archive)
State Superseded
Delegated to: Johannes Berg
Headers show
Series [v2,1/4] wifi: cfg80211: Add long_beacon_interval and short_beacon_tail | expand

Commit Message

Gilad Itzkovitch Nov. 9, 2022, 12:37 a.m. UTC 
From: Kieran Frewen <kieran.frewen@morsemicro.com>

If configured, use the S1G short beacon format. The S1G short beacon
format includes a limited set of information elements.

Signed-off-by: Kieran Frewen <kieran.frewen@morsemicro.com>
Co-developed-by: Gilad Itzkovitch <gilad.itzkovitch@morsemicro.com>
Signed-off-by: Gilad Itzkovitch <gilad.itzkovitch@morsemicro.com>
---
 include/net/mac80211.h     |  1 +
 net/mac80211/cfg.c         |  1 +
 net/mac80211/ieee80211_i.h |  1 +
 net/mac80211/tx.c          | 14 +++++++++++++-
 4 files changed, 16 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 721c450a9ccd..39faafde109a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -674,6 +674,7 @@  struct ieee80211_bss_conf {
 	bool enable_beacon;
 	u8 dtim_period;
 	u16 beacon_int;
+	u8 short_beacon_period;
 	u16 assoc_capability;
 	u64 sync_tsf;
 	u32 sync_device_ts;
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index c848fe04dd44..a42abaa25273 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1308,6 +1308,7 @@  static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	}
 
 	link_conf->dtim_period = params->dtim_period;
+	link_conf->short_beacon_period = params->short_beacon_period;
 	link_conf->enable_beacon = true;
 	link_conf->allow_p2p_go_ps = sdata->vif.p2p;
 	link_conf->twt_responder = params->twt_responder;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 63ff0d2524b6..2e1d829c548a 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -268,6 +268,7 @@  struct beacon_data {
 	struct ieee80211_meshconf_ie *meshconf;
 	u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
 	u8 cntdwn_current_counter;
+	u8 long_beacon_count;
 	struct cfg80211_mbssid_elems *mbssid_ies;
 	struct rcu_head rcu_head;
 };
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index bb2e54610101..a12b32544a3a 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -5116,6 +5116,18 @@  ieee80211_beacon_get_ap(struct ieee80211_hw *hw,
 	struct sk_buff *skb = NULL;
 	u16 csa_off_base = 0;
 	int mbssid_len;
+	bool is_short = false;
+
+	if (vif->cfg.s1g) {
+		if (beacon->long_beacon_count == 0) {
+			is_short = false;
+			beacon->long_beacon_count =
+				vif->bss_conf.short_beacon_period - 1;
+		} else {
+			is_short = true;
+			beacon->long_beacon_count--;
+		}
+	}
 
 	if (beacon->cntdwn_counter_offsets[0]) {
 		if (!is_template)
@@ -5153,7 +5165,7 @@  ieee80211_beacon_get_ap(struct ieee80211_hw *hw,
 		csa_off_base = skb->len;
 	}
 
-	if (beacon->tail)
+	if (beacon->tail && !is_short)
 		skb_put_data(skb, beacon->tail, beacon->tail_len);
 
 	if (ieee80211_beacon_protect(skb, local, sdata, link) < 0)