tb_ring_alloc_rx
ring = tb_ring_alloc_rx(xd->tb->nhi, -1, TBNET_RING_SIZE, flags,
ctl->rx = tb_ring_alloc_rx(nhi, 0, 10, RING_FLAG_NO_SUSPEND, 0, 0xffff,
ring = tb_ring_alloc_rx(xd->tb->nhi, -1, DMA_TEST_RX_RING_SIZE,
EXPORT_SYMBOL_GPL(tb_ring_alloc_rx);
struct tb_ring *tb_ring_alloc_rx(struct tb_nhi *nhi, int hop, int size,