SYNCCB
SYNCCB(cb, 0, CB_TX_DATA_OFFSET + sz, DDI_DMA_SYNC_FORDEV);
SYNCCB(cb, CB_STS_OFFSET, 2, DDI_DMA_SYNC_FORKERNEL);
SYNCCB(ncb, 0, 0, DDI_DMA_SYNC_FORDEV);
SYNCCB(lcb, CB_CMD_OFFSET, 2, DDI_DMA_SYNC_FORKERNEL);
SYNCCB(lcb, CB_CMD_OFFSET, 2, DDI_DMA_SYNC_FORDEV);