RCQ_TOTAL_PER_PAGE
&fp->rcq_chain[RCQ_TOTAL_PER_PAGE * j - 1];
#define RCQ_USABLE_PER_PAGE (RCQ_TOTAL_PER_PAGE - RCQ_NEXT_PAGE_DESC_CNT)
#define RCQ_TOTAL (RCQ_TOTAL_PER_PAGE * RCQ_NUM_PAGES)