mac80211: save wmm_acm per sdata

Save and configure the wmm_acm per sdata, rather than
per hardware.

If wmm_acm is saved per hardware when running two
interfaces simultaneously on the same hardware one
interface's wmm policy will be affected by the other
interface.

Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

6 files changed, 17 insertions, 14 deletions

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 34af2e5263c2..0024c32d7bc4 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -680,6 +680,9 @@ struct ieee80211_sub_if_data {
         /* TID bitmap for NoAck policy */
         u16 noack_map;
 
+        /* bit field of ACM bits (BIT(802.1D tag)) */
+        u8 wmm_acm;
+
         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;
@@ -1025,7 +1028,6 @@ struct ieee80211_local {
         int total_ps_buffered; /* total number of all buffered unicast and
                                 * multicast packets for power saving stations
                                 */
-        unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
 
         bool pspolling;
         bool offchannel_ps_enabled;
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 87aeb4f21ffd..728d3eac1f59 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -808,7 +808,7 @@ static u16 ieee80211_monitor_select_queue(struct net_device *dev,
 
         hdr = (void *)((u8 *)skb->data + le16_to_cpu(rtap->it_len));
 
-        return ieee80211_select_queue_80211(local, skb, hdr);
+        return ieee80211_select_queue_80211(sdata, skb, hdr);
 }
 
 static const struct net_device_ops ieee80211_monitorif_ops = {
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 94d0183ce224..2b450f541993 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1141,7 +1141,7 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 
         memset(&params, 0, sizeof(params));
 
-        local->wmm_acm = 0;
+        sdata->wmm_acm = 0;
         for (; left >= 4; left -= 4, pos += 4) {
                 int aci = (pos[0] >> 5) & 0x03;
                 int acm = (pos[0] >> 4) & 0x01;
@@ -1152,21 +1152,21 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
                 case 1: /* AC_BK */
                         queue = 3;
                         if (acm)
-                                local->wmm_acm |= BIT(1) | BIT(2); /* BK/- */
+                                sdata->wmm_acm |= BIT(1) | BIT(2); /* BK/- */
                         if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
                                 uapsd = true;
                         break;
                 case 2: /* AC_VI */
                         queue = 1;
                         if (acm)
-                                local->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */
+                                sdata->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */
                         if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
                                 uapsd = true;
                         break;
                 case 3: /* AC_VO */
                         queue = 0;
                         if (acm)
-                                local->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */
+                                sdata->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */
                         if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
                                 uapsd = true;
                         break;
@@ -1174,7 +1174,7 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
                 default:
                         queue = 2;
                         if (acm)
-                                local->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */
+                                sdata->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */
                         if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
                                 uapsd = true;
                         break;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 072e8f3afa2b..446a327b3de0 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1935,7 +1935,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
             ether_addr_equal(sdata->vif.addr, hdr->addr3))
                 return RX_CONTINUE;
 
-        q = ieee80211_select_queue_80211(local, skb, hdr);
+        q = ieee80211_select_queue_80211(sdata, skb, hdr);
         if (ieee80211_queue_stopped(&local->hw, q)) {
                 IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_congestion);
                 return RX_DROP_MONITOR;
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index c3d643a6536c..cea06e9f26f4 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -52,11 +52,11 @@ static int wme_downgrade_ac(struct sk_buff *skb)
         }
 }
 
-static u16 ieee80211_downgrade_queue(struct ieee80211_local *local,
+static u16 ieee80211_downgrade_queue(struct ieee80211_sub_if_data *sdata,
                                      struct sk_buff *skb)
 {
         /* in case we are a client verify acm is not set for this ac */
-        while (unlikely(local->wmm_acm & BIT(skb->priority))) {
+        while (unlikely(sdata->wmm_acm & BIT(skb->priority))) {
                 if (wme_downgrade_ac(skb)) {
                         /*
                          * This should not really happen. The AP has marked all
@@ -73,10 +73,11 @@ static u16 ieee80211_downgrade_queue(struct ieee80211_local *local,
 }
 
 /* Indicate which queue to use for this fully formed 802.11 frame */
-u16 ieee80211_select_queue_80211(struct ieee80211_local *local,
+u16 ieee80211_select_queue_80211(struct ieee80211_sub_if_data *sdata,
                                  struct sk_buff *skb,
                                  struct ieee80211_hdr *hdr)
 {
+        struct ieee80211_local *local = sdata->local;
         u8 *p;
 
         if (local->hw.queues < IEEE80211_NUM_ACS)
@@ -94,7 +95,7 @@ u16 ieee80211_select_queue_80211(struct ieee80211_local *local,
         p = ieee80211_get_qos_ctl(hdr);
         skb->priority = *p & IEEE80211_QOS_CTL_TAG1D_MASK;
 
-        return ieee80211_downgrade_queue(local, skb);
+        return ieee80211_downgrade_queue(sdata, skb);
 }
 
 /* Indicate which queue to use. */
@@ -156,7 +157,7 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
          * data frame has */
         skb->priority = cfg80211_classify8021d(skb);
 
-        return ieee80211_downgrade_queue(local, skb);
+        return ieee80211_downgrade_queue(sdata, skb);
 }
 
 void ieee80211_set_qos_hdr(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/wme.h b/net/mac80211/wme.h
index ca80818b7b66..7fea4bb8acbc 100644
--- a/net/mac80211/wme.h
+++ b/net/mac80211/wme.h
@@ -15,7 +15,7 @@
 
 extern const int ieee802_1d_to_ac[8];
 
-u16 ieee80211_select_queue_80211(struct ieee80211_local *local,
+u16 ieee80211_select_queue_80211(struct ieee80211_sub_if_data *sdata,
                                  struct sk_buff *skb,
                                  struct ieee80211_hdr *hdr);
 u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,