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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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10
net/8021q/vlan_dev.c
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@@ -570,16 +570,18 @@ static void vlan_dev_set_rx_mode(struct net_device *vlan_dev)
*/
static struct lock_class_key vlan_netdev_xmit_lock_key;
static void vlan_dev_set_lockdep_one(struct netdev_queue *txq,
int subclass)
static void vlan_dev_set_lockdep_one(struct net_device *dev,
struct netdev_queue *txq,
void *_subclass)
{
lockdep_set_class_and_subclass(&txq->_xmit_lock,
&vlan_netdev_xmit_lock_key, subclass);
&vlan_netdev_xmit_lock_key,
*(int *)_subclass);
}
static void vlan_dev_set_lockdep_class(struct net_device *dev, int subclass)
{
vlan_dev_set_lockdep_one(&dev->tx_queue, subclass);
netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, &subclass);
}
static const struct header_ops vlan_header_ops = {