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[netdevice] Record whether or not interrupts are currently enabled

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Signed-off-by: Michael Brown <mcb30@etherboot.org>
This commit is contained in:
Michael Brown 2010-03-23 00:55:19 +00:00
parent 88e436376c
commit 4a7648bd3d
2 changed files with 21 additions and 0 deletions
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14
src/include/gpxe/netdevice.h
View File

@ -329,6 +329,9 @@ struct net_device {
/** Network device is open */
#define NETDEV_OPEN 0x0001
/** Network device interrupts are enabled */
#define NETDEV_IRQ_ENABLED 0x0002
/** Link-layer protocol table */
#define LL_PROTOCOLS __table ( struct ll_protocol, "ll_protocols" )
@ -491,6 +494,17 @@ netdev_is_open ( struct net_device *netdev ) {
return ( netdev->state & NETDEV_OPEN );
}
/**
* Check whether or not network device interrupts are currently enabled
*
* @v netdev Network device
* @v irq_enabled Network device interrupts are enabled
*/
static inline __attribute__ (( always_inline )) int
netdev_irq_enabled ( struct net_device *netdev ) {
return ( netdev->state & NETDEV_IRQ_ENABLED );
}
extern void netdev_link_down ( struct net_device *netdev );
extern int netdev_tx ( struct net_device *netdev, struct io_buffer *iobuf );
extern void netdev_tx_complete_err ( struct net_device *netdev,

7
src/net/netdevice.c
View File

@ -460,7 +460,14 @@ void unregister_netdev ( struct net_device *netdev ) {
* @v enable Interrupts should be enabled
*/
void netdev_irq ( struct net_device *netdev, int enable ) {
/* Enable or disable device interrupts */
netdev->op->irq ( netdev, enable );
/* Record interrupt enabled state */
netdev->state &= ~NETDEV_IRQ_ENABLED;
if ( enable )
netdev->state |= NETDEV_IRQ_ENABLED;
}
/**