memif: fix input node buffer prefetch

Prefetch should be the next group of buffers instead of current buffers

Type: fix
Signed-off-by: Tianyu Li <tianyu.li@arm.com>
Change-Id: If13967e27f74c10856ae48892420d7ade6f0c92c

diff --git a/src/plugins/memif/node.c b/src/plugins/memif/node.c
index 53039d3..102d93d 100644 (file)
--- a/src/plugins/memif/node.c
+++ b/src/plugins/memif/node.c
@@ -365,10 +365,10 @@ memif_device_input_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
 
   while (n_from >= 8)
     {
-      b0 = vlib_get_buffer (vm, ptd->buffers[po[0].first_buffer_vec_index]);
-      b1 = vlib_get_buffer (vm, ptd->buffers[po[1].first_buffer_vec_index]);
-      b2 = vlib_get_buffer (vm, ptd->buffers[po[2].first_buffer_vec_index]);
-      b3 = vlib_get_buffer (vm, ptd->buffers[po[3].first_buffer_vec_index]);
+      b0 = vlib_get_buffer (vm, ptd->buffers[po[4].first_buffer_vec_index]);
+      b1 = vlib_get_buffer (vm, ptd->buffers[po[5].first_buffer_vec_index]);
+      b2 = vlib_get_buffer (vm, ptd->buffers[po[6].first_buffer_vec_index]);
+      b3 = vlib_get_buffer (vm, ptd->buffers[po[7].first_buffer_vec_index]);
 
       vlib_prefetch_buffer_header (b0, STORE);
       vlib_prefetch_buffer_header (b1, STORE);