S_RING_QUIESCE
S_RING_CONDEMNED : S_RING_QUIESCE;
if (!(softring->s_ring_state & S_RING_QUIESCE))
mac_soft_ring_signal(soft_ring, S_RING_QUIESCE);
S_RING_QUIESCE | S_RING_QUIESCE_DONE);
#define S_RING_PAUSE (S_RING_CONDEMNED | S_RING_QUIESCE)