Barrelfish
|
Data Fields | |
uint16_t | flags |
Ring flags see VRING_AVAIL_F_*. | |
uint16_t | idx |
where the driver would put the next descriptor | |
uint16_t | ring [0] |
refers to a head of descriptor chain | |
2.4.6 The Virtqueue Available Ring
The driver uses the available ring to offer buffers to the device. It is only written by the driver and read by the device.
Alignment Constraint: 2 byte boundary