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netdev: Allocate multiple queues for TX.

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alloc_netdev_mq() now allocates an array of netdev_queue
structures for TX, based upon the queue_count argument.

Furthermore, all accesses to the TX queues are now vectored
through the netdev_get_tx_queue() and netdev_for_each_tx_queue()
interfaces.  This makes it easy to grep the tree for all
things that want to get to a TX queue of a net device.

Problem spots which are not really multiqueue aware yet, and
only work with one queue, can easily be spotted by grepping
for all netdev_get_tx_queue() calls that pass in a zero index.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2008-07-17 00:34:19 -07:00
parent 070825b384
commit e8a0464cc9
18 changed files with 320 additions and 137 deletions
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4
net/mac80211/main.c
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@@ -621,7 +621,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
/* ensure that TX flow won't interrupt us
* until the end of the call to requeue function */
txq = &local->mdev->tx_queue;
txq = netdev_get_tx_queue(local->mdev, 0);
spin_lock_bh(&txq->lock);
/* create a new queue for this aggregation */
@@ -862,7 +862,7 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
/* avoid ordering issues: we are the only one that can modify
* the content of the qdiscs */
txq = &local->mdev->tx_queue;
txq = netdev_get_tx_queue(local->mdev, 0);
spin_lock_bh(&txq->lock);
/* remove the queue for this aggregation */
ieee80211_ht_agg_queue_remove(local, sta, tid, 1);