*/
ssize_t rte_mempool_xmem_usage(void *vaddr, uint32_t elt_num,
size_t total_elt_sz, const phys_addr_t paddr[], uint32_t pg_num,
*/
ssize_t rte_mempool_xmem_usage(void *vaddr, uint32_t elt_num,
size_t total_elt_sz, const phys_addr_t paddr[], uint32_t pg_num,