Differential D7037 Diff 18367 head/sys/dev/hyperv/vmbus/hv_ring_buffer.c

Changeset View

Standalone View

Show First 20 Lines • Show All 280 Lines • ▼ Show 20 Lines	hv_vmbus_ring_buffer_init(
uint32_t buffer_len)		uint32_t buffer_len)
{		{
memset(ring_info, 0, sizeof(hv_vmbus_ring_buffer_info));		memset(ring_info, 0, sizeof(hv_vmbus_ring_buffer_info));

ring_info->ring_buffer = (hv_vmbus_ring_buffer*) buffer;		ring_info->ring_buffer = (hv_vmbus_ring_buffer*) buffer;
ring_info->ring_buffer->read_index =		ring_info->ring_buffer->read_index =
ring_info->ring_buffer->write_index = 0;		ring_info->ring_buffer->write_index = 0;

ring_info->ring_size = buffer_len;
ring_info->ring_data_size = buffer_len - sizeof(hv_vmbus_ring_buffer);		ring_info->ring_data_size = buffer_len - sizeof(hv_vmbus_ring_buffer);

mtx_init(&ring_info->ring_lock, "vmbus ring buffer", NULL, MTX_SPIN);		mtx_init(&ring_info->ring_lock, "vmbus ring buffer", NULL, MTX_SPIN);

return (0);		return (0);
}		}

/**		/**
▲ Show 20 Lines • Show All 255 Lines • Show Last 20 Lines