path: root/Documentation/networking/netdevices.txt
diff options
Diffstat (limited to 'Documentation/networking/netdevices.txt')
1 files changed, 12 insertions, 13 deletions
diff --git a/Documentation/networking/netdevices.txt b/Documentation/networking/netdevices.txt
index 89358341682..c7ecc708049 100644
--- a/Documentation/networking/netdevices.txt
+++ b/Documentation/networking/netdevices.txt
@@ -47,26 +47,25 @@ packets is preferred.
struct net_device synchronization rules
Synchronization: rtnl_lock() semaphore.
Context: process
Synchronization: rtnl_lock() semaphore.
Context: process
- Note1: netif_running() is guaranteed false
- Note2: dev->poll() is guaranteed to be stopped
+ Note: netif_running() is guaranteed false
Synchronization: rtnl_lock() semaphore.
Context: process
Synchronization: dev_base_lock rwlock.
Context: nominally process, but don't sleep inside an rwlock
- Synchronization: netif_tx_lock spinlock.
+ Synchronization: __netif_tx_lock spinlock.
When the driver sets NETIF_F_LLTX in dev->features this will be
called without holding netif_tx_lock. In this case the driver
@@ -87,20 +86,20 @@ dev->hard_start_xmit:
o NETDEV_TX_LOCKED Locking failed, please retry quickly.
Only valid when NETIF_F_LLTX is set.
- Synchronization: netif_tx_lock spinlock.
+ Synchronization: netif_tx_lock spinlock; all TX queues frozen.
Context: BHs disabled
Notes: netif_queue_stopped() is guaranteed true
- Synchronization: netif_tx_lock spinlock.
+ Synchronization: netif_addr_lock spinlock.
Context: BHs disabled
struct napi_struct synchronization rules
Synchronization: NAPI_STATE_SCHED bit in napi->state. Device
- driver's dev->close method will invoke napi_disable() on
+ driver's ndo_stop method will invoke napi_disable() on
all NAPI instances which will do a sleeping poll on the
NAPI_STATE_SCHED napi->state bit, waiting for all pending
NAPI activity to cease.