avf: put sentinel at correct place

[vpp.git] / src / plugins / avf / input.c

diff --git a/src/plugins/avf/input.c b/src/plugins/avf/input.c
index 3c3d6c0..ca69407 100644 (file)
--- a/src/plugins/avf/input.c
+++ b/src/plugins/avf/input.c
@@ -125,6 +125,9 @@ avf_rxq_refill (vlib_main_t * vm, vlib_node_runtime_t * node, avf_rxq_t * rxq,
       n_alloc -= 8;
     }
 
+  /* RXQ can be smaller than 256 packets, especially if jumbo. */
+  rxq->descs[slot].qword[1] = 0;
+
   avf_tail_write (rxq->qrx_tail, slot);
 }
 
@@ -423,9 +426,6 @@ no_more_desc:
   rxq->next = next;
   rxq->n_enqueued -= n_rx_packets + n_tail_desc;
 
-  /* avoid eating our own tail */
-  rxq->descs[(next + rxq->n_enqueued) & mask].qword[1] = 0;
-
 #if defined(CLIB_HAVE_VEC256) || defined(CLIB_HAVE_VEC128)
   or_qw1 |= or_q1x4[0] | or_q1x4[1] | or_q1x4[2] | or_q1x4[3];
 #endif