summaryrefslogtreecommitdiffstats
path: root/src/vnet/devices/virtio/virtio.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/vnet/devices/virtio/virtio.c')
-rw-r--r--src/vnet/devices/virtio/virtio.c35
1 files changed, 28 insertions, 7 deletions
diff --git a/src/vnet/devices/virtio/virtio.c b/src/vnet/devices/virtio/virtio.c
index 7829da6b1a1..3867cf03a46 100644
--- a/src/vnet/devices/virtio/virtio.c
+++ b/src/vnet/devices/virtio/virtio.c
@@ -134,20 +134,41 @@ error:
return err;
}
+static_always_inline void
+virtio_free_rx_buffers (vlib_main_t * vm, virtio_vring_t * vring)
+{
+ u16 used = vring->desc_in_use;
+ u16 next = vring->desc_next;
+ u16 mask = vring->size - 1;
+
+ while (used)
+ {
+ vlib_buffer_free (vm, &vring->buffers[next], 1);
+ next = (next + 1) & mask;
+ used--;
+ }
+}
+
clib_error_t *
-virtio_vring_free (virtio_if_t * vif, u32 idx)
+virtio_vring_free (vlib_main_t * vm, virtio_if_t * vif, u32 idx)
{
- //TODO free buffers and indirect descriptor allocs
virtio_vring_t *vring = vec_elt_at_index (vif->vrings, idx);
+
+ clib_file_del_by_index (&file_main, vring->call_file_index);
+ close (vring->kick_fd);
+ close (vring->call_fd);
+ if (vring->used)
+ {
+ if ((idx & 1) == 1)
+ virtio_free_used_desc (vm, vring);
+ else
+ virtio_free_rx_buffers (vm, vring);
+ clib_mem_free (vring->used);
+ }
if (vring->desc)
clib_mem_free (vring->desc);
if (vring->avail)
clib_mem_free (vring->avail);
- if (vring->used)
- clib_mem_free (vring->used);
- clib_file_del_by_index (&file_main, vring->call_file_index);
- close (vring->kick_fd);
- close (vring->call_fd);
vec_free (vring->buffers);
return 0;
}