diff options
Diffstat (limited to 'src/include/gpxe/netdevice.h')
| -rw-r--r-- | src/include/gpxe/netdevice.h | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/src/include/gpxe/netdevice.h b/src/include/gpxe/netdevice.h index c71c09284..9800ef569 100644 --- a/src/include/gpxe/netdevice.h +++ b/src/include/gpxe/netdevice.h @@ -10,7 +10,7 @@ #include <stdint.h> #include <gpxe/list.h> #include <gpxe/tables.h> -#include <gpxe/hotplug.h> +#include <gpxe/refcnt.h> struct io_buffer; struct net_device; @@ -137,14 +137,14 @@ struct ll_protocol { * not just an Ethernet device. */ struct net_device { + /** Reference counter */ + struct refcnt refcnt; /** List of network devices */ struct list_head list; /** Name of this network device */ char name[8]; /** Underlying hardware device */ struct device *dev; - /** List of persistent reference holders */ - struct list_head references; /** Open network device * @@ -251,6 +251,28 @@ static inline int have_netdevs ( void ) { return ( ! list_empty ( &net_devices ) ); } +/** + * Get reference to network device + * + * @v netdev Network device + * @ret netdev Network device + */ +static inline __attribute__ (( always_inline )) struct net_device * +netdev_get ( struct net_device *netdev ) { + ref_get ( &netdev->refcnt ); + return netdev; +} + +/** + * Drop reference to network device + * + * @v netdev Network device + */ +static inline __attribute__ (( always_inline )) void +netdev_put ( struct net_device *netdev ) { + ref_put ( &netdev->refcnt ); +} + extern int netdev_tx ( struct net_device *netdev, struct io_buffer *iobuf ); void netdev_tx_complete ( struct net_device *netdev, struct io_buffer *iobuf ); void netdev_tx_complete_next ( struct net_device *netdev ); @@ -262,7 +284,6 @@ extern int register_netdev ( struct net_device *netdev ); extern int netdev_open ( struct net_device *netdev ); extern void netdev_close ( struct net_device *netdev ); extern void unregister_netdev ( struct net_device *netdev ); -extern void free_netdev ( struct net_device *netdev ); struct net_device * find_netdev ( const char *name ); struct net_device * find_pci_netdev ( unsigned int busdevfn ); |