SW_RXBD_RING_SIZE
rmem->vmem_size = SW_RXBD_RING_SIZE * bn->rx_nr_pages;
vzalloc(array_size(SW_RXBD_RING_SIZE, bp->rx_max_ring));
rmem->vmem_size = SW_RXBD_RING_SIZE * bp->rx_nr_pages;
rmem->vmem_size = SW_RXBD_RING_SIZE * bp->rx_nr_pages;