Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm

[linux-2.6] / include / linux / netdevice.h

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index b5760c67af9ce6aeeecfa940dec2c721bd91a3bb..cead6be467ed6e520c99a98c35e828115e375ad6 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -34,7 +34,6 @@
 #include <asm/cache.h>
 #include <asm/byteorder.h>
 
-#include <linux/config.h>
 #include <linux/device.h>
 #include <linux/percpu.h>
 #include <linux/dmaengine.h>
@@ -233,6 +232,7 @@ enum netdev_state_t
        __LINK_STATE_RX_SCHED,
        __LINK_STATE_LINKWATCH_PENDING,
        __LINK_STATE_DORMANT,
+       __LINK_STATE_QDISC_RUNNING,
 };
 
 
@@ -312,6 +312,9 @@ struct net_device
 #define NETIF_F_LLTX           4096    /* LockLess TX */
 #define NETIF_F_UFO             8192    /* Can offload UDP Large Send*/
 
+#define NETIF_F_GEN_CSUM       (NETIF_F_NO_CSUM | NETIF_F_HW_CSUM)
+#define NETIF_F_ALL_CSUM       (NETIF_F_IP_CSUM | NETIF_F_GEN_CSUM)
+
        struct net_device       *next_sched;
 
        /* Interface index. Unique device identifier    */
@@ -407,7 +410,7 @@ struct net_device
  * One part is mostly used on xmit path (device)
  */
        /* hard_start_xmit synchronizer */
-       spinlock_t              xmit_lock ____cacheline_aligned_in_smp;
+       spinlock_t              _xmit_lock ____cacheline_aligned_in_smp;
        /* cpu id of processor entered to hard_start_xmit or -1,
           if nobody entered there.
         */
@@ -893,11 +896,43 @@ static inline void __netif_rx_complete(struct net_device *dev)
        clear_bit(__LINK_STATE_RX_SCHED, &dev->state);
 }
 
+static inline void netif_tx_lock(struct net_device *dev)
+{
+       spin_lock(&dev->_xmit_lock);
+       dev->xmit_lock_owner = smp_processor_id();
+}
+
+static inline void netif_tx_lock_bh(struct net_device *dev)
+{
+       spin_lock_bh(&dev->_xmit_lock);
+       dev->xmit_lock_owner = smp_processor_id();
+}
+
+static inline int netif_tx_trylock(struct net_device *dev)
+{
+       int err = spin_trylock(&dev->_xmit_lock);
+       if (!err)
+               dev->xmit_lock_owner = smp_processor_id();
+       return err;
+}
+
+static inline void netif_tx_unlock(struct net_device *dev)
+{
+       dev->xmit_lock_owner = -1;
+       spin_unlock(&dev->_xmit_lock);
+}
+
+static inline void netif_tx_unlock_bh(struct net_device *dev)
+{
+       dev->xmit_lock_owner = -1;
+       spin_unlock_bh(&dev->_xmit_lock);
+}
+
 static inline void netif_tx_disable(struct net_device *dev)
 {
-       spin_lock_bh(&dev->xmit_lock);
+       netif_tx_lock_bh(dev);
        netif_stop_queue(dev);
-       spin_unlock_bh(&dev->xmit_lock);
+       netif_tx_unlock_bh(dev);
 }
 
 /* These functions live elsewhere (drivers/net/net_init.c, but related) */