commit 89733a15ce329a69bb37ea91ceab7a50064ec0a0
author Mohsin Kazmi <sykazmi@cisco.com> Tue Aug 30 13:29:06 2022 +0000
committer Beno�t Ganne <bganne@cisco.com> Wed Aug 31 09:15:31 2022 +0000
tree ea817f63b00b8dedbb4ba1e300e13ecdb09de44d
parent 36cb2f03ae4448332869ca1d43c88ed91609f45b

devices: add support for polling mode

Type: improvement

Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: I8d84dc8b7f5c5e863c32838cfafc3d366e2a7e00

src/vnet/devices/af_packet/node.c

diff --git a/src/vnet/devices/af_packet/node.c b/src/vnet/devices/af_packet/node.c
index 1fc0619..0e522c9 100644
--- a/src/vnet/devices/af_packet/node.c
+++ b/src/vnet/devices/af_packet/node.c
@@ -504,12 +504,15 @@
 
 done:
 
-  if ((((block_desc_t *) (block_start = rx_queue->rx_ring[block]))
-	 ->hdr.bh1.block_status &
-       TP_STATUS_USER) != 0)
-    vlib_node_set_state (vm, node->node_index, VLIB_NODE_STATE_POLLING);
-  else
-    vlib_node_set_state (vm, node->node_index, VLIB_NODE_STATE_INTERRUPT);
+  if (apm->polling_count == 0)
+    {
+      if ((((block_desc_t *) (block_start = rx_queue->rx_ring[block]))
+	     ->hdr.bh1.block_status &
+	   TP_STATUS_USER) != 0)
+	vlib_node_set_state (vm, node->node_index, VLIB_NODE_STATE_POLLING);
+      else
+	vlib_node_set_state (vm, node->node_index, VLIB_NODE_STATE_INTERRUPT);
+    }
 
   vlib_error_count (vm, node->node_index, AF_PACKET_INPUT_ERROR_TOTAL_RECV_BLK,
 		    total);