rx-placement: Add API call for interface rx-placement

Change-Id: I9228ce29e9d2fc862a2d076b4072bcdd728d6dd1
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>

1 files changed, 42 insertions, 23 deletions

diff --git a/src/vnet/interface_cli.c b/src/vnet/interface_cli.c
index 91725b6a688..9271f5b78c5 100644
--- a/src/vnet/interface_cli.c
+++ b/src/vnet/interface_cli.c
@@ -1565,6 +1565,42 @@ VLIB_CLI_COMMAND (show_interface_rx_placement, static) = {
 };
 /* *INDENT-ON* */
 
+clib_error_t *
+set_hw_interface_rx_placement (u32 hw_if_index, u32 queue_id,
+			       u32 thread_index, u8 is_main)
+{
+  vnet_main_t *vnm = vnet_get_main ();
+  vnet_device_main_t *vdm = &vnet_device_main;
+  clib_error_t *error = 0;
+  vnet_hw_interface_rx_mode mode = VNET_HW_INTERFACE_RX_MODE_UNKNOWN;
+  int rv;
+
+  if (is_main)
+    thread_index = 0;
+  else
+    thread_index += vdm->first_worker_thread_index;
+
+  if (thread_index > vdm->last_worker_thread_index)
+    return clib_error_return (0,
+			      "please specify valid worker thread or main");
+
+  rv = vnet_hw_interface_get_rx_mode (vnm, hw_if_index, queue_id, &mode);
+
+  if (rv)
+    return clib_error_return (0, "not found");
+
+  rv = vnet_hw_interface_unassign_rx_thread (vnm, hw_if_index, queue_id);
+
+  if (rv)
+    return clib_error_return (0, "not found");
+
+  vnet_hw_interface_assign_rx_thread (vnm, hw_if_index, queue_id,
+				      thread_index);
+  vnet_hw_interface_set_rx_mode (vnm, hw_if_index, queue_id, mode);
+
+  return (error);
+}
+
 static clib_error_t *
 set_interface_rx_placement (vlib_main_t * vm, unformat_input_t * input,
 			    vlib_cli_command_t * cmd)
@@ -1572,12 +1608,10 @@ set_interface_rx_placement (vlib_main_t * vm, unformat_input_t * input,
   clib_error_t *error = 0;
   unformat_input_t _line_input, *line_input = &_line_input;
   vnet_main_t *vnm = vnet_get_main ();
-  vnet_device_main_t *vdm = &vnet_device_main;
-  vnet_hw_interface_rx_mode mode;
   u32 hw_if_index = (u32) ~ 0;
   u32 queue_id = (u32) 0;
   u32 thread_index = (u32) ~ 0;
-  int rv;
+  u8 is_main = 0;
 
   if (!unformat_user (input, unformat_line_input, line_input))
     return 0;
@@ -1590,9 +1624,9 @@ set_interface_rx_placement (vlib_main_t * vm, unformat_input_t * input,
       else if (unformat (line_input, "queue %d", &queue_id))
 	;
       else if (unformat (line_input, "main", &thread_index))
-	thread_index = 0;
+	is_main = 1;
       else if (unformat (line_input, "worker %d", &thread_index))
-	thread_index += vdm->first_worker_thread_index;
+	;
       else
 	{
 	  error = clib_error_return (0, "parse error: '%U'",
@@ -1607,25 +1641,10 @@ set_interface_rx_placement (vlib_main_t * vm, unformat_input_t * input,
   if (hw_if_index == (u32) ~ 0)
     return clib_error_return (0, "please specify valid interface name");
 
-  if (thread_index > vdm->last_worker_thread_index)
-    return clib_error_return (0,
-			      "please specify valid worker thread or main");
-
-  rv = vnet_hw_interface_get_rx_mode (vnm, hw_if_index, queue_id, &mode);
-
-  if (rv)
-    return clib_error_return (0, "not found");
-
-  rv = vnet_hw_interface_unassign_rx_thread (vnm, hw_if_index, queue_id);
-
-  if (rv)
-    return clib_error_return (0, "not found");
+  error = set_hw_interface_rx_placement (hw_if_index, queue_id, thread_index,
+					 is_main);
 
-  vnet_hw_interface_assign_rx_thread (vnm, hw_if_index, queue_id,
-				      thread_index);
-  vnet_hw_interface_set_rx_mode (vnm, hw_if_index, queue_id, mode);
-
-  return 0;
+  return (error);
 }
 
 /*?