mac80211: use multi-queue master netdevice

This patch updates mac80211 and drivers to be multi-queue aware and
use that instead of the internal queue mapping. Also does a number
of cleanups in various pieces of the code that fall out and reduces
internal mac80211 state size.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 5 insertions, 9 deletions

diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 477690f4dca7..14a9ff10a1e9 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -158,7 +158,7 @@ static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
         u8 tid;
 
         if (info->flags & IEEE80211_TX_CTL_REQUEUE) {
-                queue = info->queue;
+                queue = skb_get_queue_mapping(skb);
                 rcu_read_lock();
                 sta = sta_info_get(local, hdr->addr1);
                 tid = skb->priority & QOS_CONTROL_TAG1D_MASK;
@@ -219,7 +219,7 @@ static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
                         err = NET_XMIT_DROP;
         } else {
                 tid = skb->priority & QOS_CONTROL_TAG1D_MASK;
-                info->queue = (unsigned int) queue;
+                skb_set_queue_mapping(skb, queue);
                 qdisc = q->queues[queue];
                 err = qdisc->enqueue(skb, qdisc);
                 if (err == NET_XMIT_SUCCESS) {
@@ -240,12 +240,11 @@ static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
 static int wme_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd)
 {
         struct ieee80211_sched_data *q = qdisc_priv(qd);
-        struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
         struct Qdisc *qdisc;
         int err;
 
         /* we recorded which queue to use earlier! */
-        qdisc = q->queues[info->queue];
+        qdisc = q->queues[skb_get_queue_mapping(skb)];
 
         if ((err = qdisc->ops->requeue(skb, qdisc)) == 0) {
                 qd->q.qlen++;
@@ -269,11 +268,8 @@ static struct sk_buff *wme_qdiscop_dequeue(struct Qdisc* qd)
         /* check all the h/w queues in numeric/priority order */
         for (queue = 0; queue < QD_NUM(hw); queue++) {
                 /* see if there is room in this hardware queue */
-                if ((test_bit(IEEE80211_LINK_STATE_XOFF,
-                                &local->state[queue])) ||
-                    (test_bit(IEEE80211_LINK_STATE_PENDING,
-                                &local->state[queue])) ||
-                         (!test_bit(queue, q->qdisc_pool)))
+                if (__netif_subqueue_stopped(local->mdev, queue) ||
+                    !test_bit(queue, q->qdisc_pool))
                         continue;
 
                 /* there is space - try and get a frame */