diff mbox series

[v2,3/4] wifi: mac80211: Fix SMPS handling in the context of MLO

Message ID 20230828150922.2cce9b20924e.Iaed8aaac30f599e030b9e9de5e868faaa2c1a0ab@changeid
State Superseded
Headers show
Series [v2,1/4] wifi: mac80211: tx: clarify conditions in if statement | expand

Commit Message

Johannes Berg Aug. 28, 2023, 1:09 p.m. UTC 
From: Ilan Peer <ilan.peer@intel.com>

When the connection is a MLO connection, a SMPS request should be
sent on a specific link, as SMPS is BSS specific, and the DA and BSSID
used for the action frame transmission should be the AP MLD address, as
the underlying driver is expected to perform the address translation
(based on the link ID).

Fix the SMPS request handling to use the AP MLD address and provide the
link ID for the request processing during Tx.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
v2: fix the non-MLD case
---
 net/mac80211/cfg.c         | 10 ++++++++--
 net/mac80211/ht.c          |  4 ++--
 net/mac80211/ieee80211_i.h |  2 +-
 3 files changed, 11 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 29a6da5ee77f..fa20a260f9c8 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3178,6 +3178,10 @@  int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
 	if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
 		return -EINVAL;
 
+	if (ieee80211_vif_is_mld(&sdata->vif) &&
+	    !(sdata->vif.active_links & BIT(link->link_id)))
+		return 0;
+
 	old_req = link->u.mgd.req_smps;
 	link->u.mgd.req_smps = smps_mode;
 
@@ -3194,7 +3198,7 @@  int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
 	    link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
 		return 0;
 
-	ap = link->u.mgd.bssid;
+	ap = sdata->vif.cfg.ap_addr;
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
@@ -3216,7 +3220,9 @@  int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
 
 	/* send SM PS frame to AP */
 	err = ieee80211_send_smps_action(sdata, smps_mode,
-					 ap, ap);
+					 ap, ap,
+					 ieee80211_vif_is_mld(&sdata->vif) ?
+					 link->link_id : -1);
 	if (err)
 		link->u.mgd.req_smps = old_req;
 	else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 33729870ad8a..802b0e738696 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -538,7 +538,7 @@  ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps)
 
 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
 			       enum ieee80211_smps_mode smps, const u8 *da,
-			       const u8 *bssid)
+			       const u8 *bssid, int link_id)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct sk_buff *skb;
@@ -579,7 +579,7 @@  int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
 
 	/* we'll do more on status of this frame */
 	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
-	ieee80211_tx_skb(sdata, skb);
+	ieee80211_tx_skb_tid(sdata, skb, 7, link_id);
 
 	return 0;
 }
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 7b74cf96ee0a..1df2101d8eeb 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -2098,7 +2098,7 @@  void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 			  u16 initiator, u16 reason_code);
 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
 			       enum ieee80211_smps_mode smps, const u8 *da,
-			       const u8 *bssid);
+			       const u8 *bssid, int link_id);
 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
 				   enum ieee80211_smps_mode smps_mode_new);