memif: Revert "memif buffer leaks during disconnect."
This reverts commit
That commit introduced crash into memif make test-debug.
To reproduce: "TEST=memif make test-debug".
With this commit reverted the make test-debug for memif passes.
Type: fix
@@ -70,7 +70,6 @@ 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;
@@ -127,18 +126,6 @@ memif_disconnect (memif_if_t * mif, clib_error_t * err)
memif_log_warn (mif,
"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;
}
}
@@ -149,28 +136,7 @@ memif_disconnect (memif_if_t * mif, clib_error_t * err)
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);
- }
-
vec_free (mif->tx_queues);
/* free memory regions */
