Merge tag 'mac80211-next-for-net-next-2021-02-12' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Last set of updates:
 * more minstrel work from Felix to reduce the
   probing overhead
 * QoS for nl80211 control port frames
 * STBC injection support
 * and a couple of small fixes
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 28 insertions, 6 deletions

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index d626e6808bef..5d06de61047a 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1182,9 +1182,7 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
 			tx->sta = rcu_dereference(sdata->u.vlan.sta);
 			if (!tx->sta && sdata->wdev.use_4addr)
 				return TX_DROP;
-		} else if (info->flags & (IEEE80211_TX_INTFL_NL80211_FRAME_TX |
-					  IEEE80211_TX_CTL_INJECTED) ||
-			   tx->sdata->control_port_protocol == tx->skb->protocol) {
+		} else if (tx->sdata->control_port_protocol == tx->skb->protocol) {
 			tx->sta = sta_info_get_bss(sdata, hdr->addr1);
 		}
 		if (!tx->sta && !is_multicast_ether_addr(hdr->addr1))
@@ -2124,6 +2122,15 @@ bool ieee80211_parse_tx_radiotap(struct sk_buff *skb,
 			if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_FEC &&
 			    mcs_flags & IEEE80211_RADIOTAP_MCS_FEC_LDPC)
 				info->flags |= IEEE80211_TX_CTL_LDPC;
+
+			if (mcs_known & IEEE80211_RADIOTAP_MCS_HAVE_STBC) {
+				u8 stbc = u8_get_bits(mcs_flags,
+						      IEEE80211_RADIOTAP_MCS_STBC_MASK);
+
+				info->flags |=
+					u32_encode_bits(stbc,
+							IEEE80211_TX_CTL_STBC);
+			}
 			break;
 
 		case IEEE80211_RADIOTAP_VHT:
@@ -5404,6 +5411,7 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
+	struct sta_info *sta;
 	struct sk_buff *skb;
 	struct ethhdr *ehdr;
 	u32 ctrl_flags = 0;
@@ -5426,8 +5434,7 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
 	if (cookie)
 		ctrl_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
 
-	flags |= IEEE80211_TX_INTFL_NL80211_FRAME_TX |
-		 IEEE80211_TX_CTL_INJECTED;
+	flags |= IEEE80211_TX_INTFL_NL80211_FRAME_TX;
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
 			    sizeof(struct ethhdr) + len);
@@ -5444,10 +5451,25 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
 	ehdr->h_proto = proto;
 
 	skb->dev = dev;
-	skb->protocol = htons(ETH_P_802_3);
+	skb->protocol = proto;
 	skb_reset_network_header(skb);
 	skb_reset_mac_header(skb);
 
+	/* update QoS header to prioritize control port frames if possible,
+	 * priorization also happens for control port frames send over
+	 * AF_PACKET
+	 */
+	rcu_read_lock();
+
+	if (ieee80211_lookup_ra_sta(sdata, skb, &sta) == 0 && !IS_ERR(sta)) {
+		u16 queue = __ieee80211_select_queue(sdata, sta, skb);
+
+		skb_set_queue_mapping(skb, queue);
+		skb_get_hash(skb);
+	}
+
+	rcu_read_unlock();
+
 	/* mutex lock is only needed for incrementing the cookie counter */
 	mutex_lock(&local->mtx);