mac80211: Add NoAck per tid support
This patch contains the processing changes in mac80211.
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 2577c45..f947ac6 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -102,6 +102,16 @@
return 0;
}
+static int ieee80211_set_noack_map(struct wiphy *wiphy,
+ struct net_device *dev,
+ u16 noack_map)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ sdata->noack_map = noack_map;
+ return 0;
+}
+
static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
u8 key_idx, bool pairwise, const u8 *mac_addr,
struct key_params *params)
@@ -2698,4 +2708,5 @@
.tdls_mgmt = ieee80211_tdls_mgmt,
.probe_client = ieee80211_probe_client,
.get_channel = ieee80211_wiphy_get_channel,
+ .set_noack_map = ieee80211_set_noack_map,
};
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b1aa2e1..7a757a9 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -611,6 +611,9 @@
struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
unsigned int fragment_next;
+ /* TID bitmap for NoAck policy */
+ u16 noack_map;
+
struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
struct ieee80211_key __rcu *default_unicast_key;
struct ieee80211_key __rcu *default_multicast_key;
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index b34ca0c..be1d61e 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -866,6 +866,8 @@
sdata->control_port_protocol = cpu_to_be16(ETH_P_PAE);
sdata->control_port_no_encrypt = false;
+ sdata->noack_map = 0;
+
/* only monitor differs */
sdata->dev->type = ARPHRD_ETHER;
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 74b3d10..a98f24a 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -139,6 +139,7 @@
struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (void *)skb->data;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
/* Fill in the QoS header if there is one. */
if (ieee80211_is_data_qos(hdr->frame_control)) {
@@ -150,8 +151,12 @@
/* preserve EOSP bit */
ack_policy = *p & IEEE80211_QOS_CTL_EOSP;
- if (is_multicast_ether_addr(hdr->addr1))
+ if (is_multicast_ether_addr(hdr->addr1) ||
+ sdata->noack_map & BIT(tid)) {
ack_policy |= IEEE80211_QOS_CTL_ACK_POLICY_NOACK;
+ info->flags |= IEEE80211_TX_CTL_NO_ACK;
+ }
+
/* qos header is 2 bytes */
*p++ = ack_policy | tid;
*p = ieee80211_vif_is_mesh(&sdata->vif) ?