Understanding Linux Network Internals

Functions and Variables Featured in This Chapter

Table 8-4 summarizes the functions, data structures, and variables introduced in this chapter.

Table 8-4. Functions, data structures, and variables introduced in this chapter

Name	Description
Functions
alloc_netdev alloc_ xxx dev wrappers	Allocate and partially initialize a net_device structure.
free_netdev	Frees a net_device structure.
dev_alloc_name	Completes a device name.
register_netdevice, register_netdev unregister_netdevice, unregister_netdev	Register and unregister a network device. The xxx _netdev APIs are wrappers for the xxx _netdevice APIs.
xxx _setup	Helper routines used to initialize part of the net_device structure. There is one for each of the most common interface types.
dev_hold dev_put	Increment and decrement the reference count on a net_device structure.
netif_carrier_on netif_carrier_off netif_carrier_ok	Called when the carrier on a device is detected, lost, or to be read, respectively.
netif_device_attach netif_device_detach	Called when a device is plugged into and unplugged from the system, respectively. Called also when the system goes into suspend mode and then resumes.
netif_start_queue netif_stop_queue netif_queue_stopped	Called to start, stop, and check the status of the device egress queue, respectively.
dev_ethtool	Processes ioctl commands from the ethtool user-space command.
Variables
dev_base dev_name_head dev_index_head dev_base_lock ...