ex_ring_t
ex_ring_t *r;
ex_ring_t *r;
ex_free_ring(ex_ring_t *r)
elxl_reset_ring(ex_ring_t *r, uint_t dir)
ex_alloc_ring(elxl_t *sc, int count, ex_ring_t *r, uint_t dir)
ex_ring_t ex_rxring;
ex_ring_t ex_txring;