diff options
Diffstat (limited to 'src/include/ipxe')
| -rw-r--r-- | src/include/ipxe/netdevice.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/include/ipxe/netdevice.h b/src/include/ipxe/netdevice.h index f20a81f79..a1d207ffc 100644 --- a/src/include/ipxe/netdevice.h +++ b/src/include/ipxe/netdevice.h @@ -430,6 +430,14 @@ struct net_device { /** Network device receive queue processing is frozen */ #define NETDEV_RX_FROZEN 0x0004 +/** Network device interrupts are unsupported + * + * This flag can be used by a network device to indicate that + * interrupts are not supported despite the presence of an irq() + * method. + */ +#define NETDEV_IRQ_UNSUPPORTED 0x0008 + /** Link-layer protocol table */ #define LL_PROTOCOLS __table ( struct ll_protocol, "ll_protocols" ) @@ -646,7 +654,8 @@ netdev_is_open ( struct net_device *netdev ) { */ static inline __attribute__ (( always_inline )) int netdev_irq_supported ( struct net_device *netdev ) { - return ( netdev->op->irq != NULL ); + return ( ( netdev->op->irq != NULL ) && + ! ( netdev->state & NETDEV_IRQ_UNSUPPORTED ) ); } /** |