}
}
+static void
+memif_disconnect_free_zc_queue_buffer (memif_queue_t * mq, u8 is_rx)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ u16 ring_size, n_slots, mask, start;
+
+ ring_size = 1 << mq->log2_ring_size;
+ mask = ring_size - 1;
+ n_slots = mq->ring->head - mq->last_tail;
+ start = mq->last_tail & mask;
+ if (is_rx)
+ vlib_buffer_free_from_ring (vm, mq->buffers, start, ring_size, n_slots);
+ else
+ vlib_buffer_free_from_ring_no_next (vm, mq->buffers, start, ring_size,
+ n_slots);
+ vec_free (mq->buffers);
+}
+
void
memif_disconnect (memif_if_t * mif, clib_error_t * err)
{
memif_main_t *mm = &memif_main;
vnet_main_t *vnm = vnet_get_main ();
- vlib_main_t *vm = vlib_get_main ();
memif_region_t *mr;
memif_queue_t *mq;
int i;
"Unable to unassign interface %d, queue %d: rc=%d",
mif->hw_if_index, i, rv);
if (mif->flags & MEMIF_IF_FLAG_ZERO_COPY)
- {
-
- u16 cur_slot,last_slot, start;
- u16 ring_size = 1 << mq->log2_ring_size;
- u16 mask = ring_size - 1;
- cur_slot = mq->last_tail;
- last_slot = mq->ring->head - 1 ;
- start = (mq->last_tail & mask);
- u16 n_slots = ((last_slot - cur_slot) & mask) + 1;
- vlib_buffer_free_from_ring(vm,mq->buffers,start,ring_size,n_slots);
- }
- mq->ring = 0;
+ {
+ memif_disconnect_free_zc_queue_buffer(mq, 1);
+ }
+ mq->ring = 0;
}
}
+ /* *INDENT-OFF* */
+ vec_foreach_index (i, mif->tx_queues)
+ {
+ mq = vec_elt_at_index (mif->tx_queues, i);
+ if (mq->ring)
+ {
+ if (mif->flags & MEMIF_IF_FLAG_ZERO_COPY)
+ {
+ memif_disconnect_free_zc_queue_buffer(mq, 0);
+ }
+ }
+ mq->ring = 0;
+ }
+
/* free tx and rx queues */
vec_foreach (mq, mif->rx_queues)
memif_queue_intfd_close (mq);
vec_free (mif->rx_queues);
vec_foreach (mq, mif->tx_queues)
- {
- if (mif->flags & MEMIF_IF_FLAG_ZERO_COPY)
- {
- memif_ring_t *ring = mq->ring;
- u16 cur_slot,last_slot, start;
- u16 ring_size = 1 << mq->log2_ring_size;
- u16 mask = ring_size - 1;
- u16 n_slots = ring->tail - mq->last_tail;
- cur_slot = mq->last_tail;
- last_slot = mq->ring->head;
- start = (mq->last_tail & mask);
- if(last_slot > cur_slot)
- n_slots = n_slots + ((last_slot - cur_slot)) ;
- else if (last_slot < cur_slot)
- n_slots = n_slots + (cur_slot - last_slot);
- vlib_buffer_free_from_ring_no_next (vm, mq->buffers,
- start,
- ring_size, n_slots);
- }
- memif_queue_intfd_close (mq);
- }
-
+ memif_queue_intfd_close (mq);
vec_free (mif->tx_queues);
/* free memory regions */