rx_mbox_areas_t
KMEM_ZALLOC(sizeof (rx_mbox_areas_t), KM_SLEEP);
KMEM_FREE(rx_mbox_areas_p, sizeof (rx_mbox_areas_t));
KMEM_FREE(rx_mbox_areas_p, sizeof (rx_mbox_areas_t));
KMEM_ZALLOC(sizeof (rx_mbox_areas_t), KM_SLEEP);
KMEM_FREE(nxgep->rx_mbox_areas_p, sizeof (rx_mbox_areas_t));