EQ_DESC_MAX_PAGE
#define MAX_EQ_AVAIL (EQ_DESC_MAX_PAGE * NUM_EQ_PAGES - 2)
#define NEXT_EQ_IDX(x) ((((x) & EQ_DESC_MAX_PAGE) == \
(EQ_DESC_MAX_PAGE - 1)) ? (x) + 2 : (x) + 1)
if ((hw_cons & EQ_DESC_MAX_PAGE) == EQ_DESC_MAX_PAGE)