Lines Matching refs:head
702 const u_int head = kring->rhead;
713 npkt_remaining = head >= kring->nr_hwcur ? head - kring->nr_hwcur :
714 kring->nkr_num_slots - kring->nr_hwcur + head;
742 MPASS(kring->nr_hwcur == head);
767 u_int const head = kring->rhead;
779 /* Userspace done with buffers from kring->nr_hwcur to head */
780 n = head >= kring->nr_hwcur ? head - kring->nr_hwcur :
781 kring->nkr_num_slots - kring->nr_hwcur + head;