netdev: Move atomic queue state bits into netdev_queue.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index e2d931f..203c550 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -281,14 +281,12 @@
enum netdev_state_t
{
- __LINK_STATE_XOFF=0,
__LINK_STATE_START,
__LINK_STATE_PRESENT,
__LINK_STATE_SCHED,
__LINK_STATE_NOCARRIER,
__LINK_STATE_LINKWATCH_PENDING,
__LINK_STATE_DORMANT,
- __LINK_STATE_QDISC_RUNNING,
};
@@ -448,10 +446,17 @@
# define napi_synchronize(n) barrier()
#endif
+enum netdev_queue_state_t
+{
+ __QUEUE_STATE_XOFF,
+ __QUEUE_STATE_QDISC_RUNNING,
+};
+
struct netdev_queue {
spinlock_t lock;
struct net_device *dev;
struct Qdisc *qdisc;
+ unsigned long state;
struct sk_buff *gso_skb;
spinlock_t _xmit_lock;
int xmit_lock_owner;
@@ -952,9 +957,7 @@
static inline void netif_schedule_queue(struct netdev_queue *txq)
{
- struct net_device *dev = txq->dev;
-
- if (!test_bit(__LINK_STATE_XOFF, &dev->state))
+ if (!test_bit(__QUEUE_STATE_XOFF, &txq->state))
__netif_schedule(txq);
}
@@ -969,9 +972,14 @@
*
* Allow upper layers to call the device hard_start_xmit routine.
*/
+static inline void netif_tx_start_queue(struct netdev_queue *dev_queue)
+{
+ clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state);
+}
+
static inline void netif_start_queue(struct net_device *dev)
{
- clear_bit(__LINK_STATE_XOFF, &dev->state);
+ netif_tx_start_queue(&dev->tx_queue);
}
/**
@@ -981,16 +989,21 @@
* Allow upper layers to call the device hard_start_xmit routine.
* Used for flow control when transmit resources are available.
*/
-static inline void netif_wake_queue(struct net_device *dev)
+static inline void netif_tx_wake_queue(struct netdev_queue *dev_queue)
{
#ifdef CONFIG_NETPOLL_TRAP
if (netpoll_trap()) {
- clear_bit(__LINK_STATE_XOFF, &dev->state);
+ clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state);
return;
}
#endif
- if (test_and_clear_bit(__LINK_STATE_XOFF, &dev->state))
- __netif_schedule(&dev->tx_queue);
+ if (test_and_clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state))
+ __netif_schedule(dev_queue);
+}
+
+static inline void netif_wake_queue(struct net_device *dev)
+{
+ netif_tx_wake_queue(&dev->tx_queue);
}
/**
@@ -1000,9 +1013,14 @@
* Stop upper layers calling the device hard_start_xmit routine.
* Used for flow control when transmit resources are unavailable.
*/
+static inline void netif_tx_stop_queue(struct netdev_queue *dev_queue)
+{
+ set_bit(__QUEUE_STATE_XOFF, &dev_queue->state);
+}
+
static inline void netif_stop_queue(struct net_device *dev)
{
- set_bit(__LINK_STATE_XOFF, &dev->state);
+ netif_tx_stop_queue(&dev->tx_queue);
}
/**
@@ -1011,9 +1029,14 @@
*
* Test if transmit queue on device is currently unable to send.
*/
+static inline int netif_tx_queue_stopped(const struct netdev_queue *dev_queue)
+{
+ return test_bit(__QUEUE_STATE_XOFF, &dev_queue->state);
+}
+
static inline int netif_queue_stopped(const struct net_device *dev)
{
- return test_bit(__LINK_STATE_XOFF, &dev->state);
+ return netif_tx_queue_stopped(&dev->tx_queue);
}
/**
@@ -1043,7 +1066,7 @@
*/
static inline void netif_start_subqueue(struct net_device *dev, u16 queue_index)
{
- clear_bit(__LINK_STATE_XOFF, &dev->egress_subqueue[queue_index].state);
+ clear_bit(__QUEUE_STATE_XOFF, &dev->egress_subqueue[queue_index].state);
}
/**
@@ -1059,7 +1082,7 @@
if (netpoll_trap())
return;
#endif
- set_bit(__LINK_STATE_XOFF, &dev->egress_subqueue[queue_index].state);
+ set_bit(__QUEUE_STATE_XOFF, &dev->egress_subqueue[queue_index].state);
}
/**
@@ -1072,7 +1095,7 @@
static inline int __netif_subqueue_stopped(const struct net_device *dev,
u16 queue_index)
{
- return test_bit(__LINK_STATE_XOFF,
+ return test_bit(__QUEUE_STATE_XOFF,
&dev->egress_subqueue[queue_index].state);
}
@@ -1095,7 +1118,7 @@
if (netpoll_trap())
return;
#endif
- if (test_and_clear_bit(__LINK_STATE_XOFF,
+ if (test_and_clear_bit(__QUEUE_STATE_XOFF,
&dev->egress_subqueue[queue_index].state))
__netif_schedule(&dev->tx_queue);
}
