Lines Matching refs:free_head

905       uint16_t free_head;
946    ``free_head``
950 #. Set ``desc[free_head].addr``, ``desc[free_head].len``,
951    ``desc[free_head].flags``, ``desc[free_head].id`` to ``d.addr``,
954 #. Set ``free_head`` to ``desc[free_head].next``
956 #. If ``d`` is last descriptor, set ``old_free_head`` to ``free_head``
965 3. Set ``desc[e.last].next`` to ``free_head``
967 4. Set ``free_head`` to the index of ``e``
980    to ``free_head``, ``used_idx``, ``used_wrap_counter``
995       ``old_used_idx``, ``old_used_wrap_counter`` to ``free_head``,
998 #. Set ``free_head``, ``used_idx``, ``used_wrap_counter`` to