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| author | Michael Brown <mcb30@etherboot.org> | 2010-03-23 00:55:19 +0000 |
|---|---|---|
| committer | Michael Brown <mcb30@etherboot.org> | 2010-03-23 00:55:47 +0000 |
| commit | 4a7648bd3d811c10f272608cf5a64ab5eb2cd728 (patch) | |
| tree | 96783a9651fe3e56fc508452364156a86e81dd60 | |
| parent | 88e436376cbdedee73483a9b57203c60a34316ac (diff) | |
| download | ipxe-4a7648bd3d811c10f272608cf5a64ab5eb2cd728.zip ipxe-4a7648bd3d811c10f272608cf5a64ab5eb2cd728.tar.gz ipxe-4a7648bd3d811c10f272608cf5a64ab5eb2cd728.tar.bz2 | |
[netdevice] Record whether or not interrupts are currently enabled
Signed-off-by: Michael Brown <mcb30@etherboot.org>
| -rw-r--r-- | src/include/gpxe/netdevice.h | 14 | ||||
| -rw-r--r-- | src/net/netdevice.c | 7 |
2 files changed, 21 insertions, 0 deletions
diff --git a/src/include/gpxe/netdevice.h b/src/include/gpxe/netdevice.h index 4f469e6..97bf168 100644 --- a/src/include/gpxe/netdevice.h +++ b/src/include/gpxe/netdevice.h @@ -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, diff --git a/src/net/netdevice.c b/src/net/netdevice.c index 2e781d7..b91f98c 100644 --- a/src/net/netdevice.c +++ b/src/net/netdevice.c @@ -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; } /** |