af_packet: invalid TCP/UDP offload checksum on RX node recalculation

[vpp.git] / src / vnet / devices / af_packet / cli.c

diff --git a/src/vnet/devices/af_packet/cli.c b/src/vnet/devices/af_packet/cli.c
index 44dc517..29c0e06 100644 (file)
--- a/src/vnet/devices/af_packet/cli.c
+++ b/src/vnet/devices/af_packet/cli.c
@@ -194,6 +194,62 @@ VLIB_CLI_COMMAND (af_packet_delete_command, static) = {
 };
 /* *INDENT-ON* */
 
+static clib_error_t *
+af_packet_set_l4_cksum_offload_command_fn (vlib_main_t * vm,
+                                          unformat_input_t * input,
+                                          vlib_cli_command_t * cmd)
+{
+  unformat_input_t _line_input, *line_input = &_line_input;
+  u8 set = 0;
+  clib_error_t *error = NULL;
+  vnet_main_t *vnm = vnet_get_main ();
+  u32 sw_if_index;
+
+  if (!unformat_user (input, unformat_line_input, line_input))
+    return 0;
+
+  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat
+         (line_input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index))
+       ;
+      else if (unformat (line_input, "on"))
+       set = 1;
+      else if (unformat (line_input, "off"))
+       set = 0;
+      else
+       {
+         error = clib_error_return (0, "unknown input '%U'",
+                                    format_unformat_error, line_input);
+         goto done;
+       }
+    }
+
+  af_packet_set_l4_cksum_offload (vm, sw_if_index, set);
+
+done:
+  unformat_free (line_input);
+  return error;
+}
+
+/*?
+ * Set TCP/UDP offload checksum calculation. Use interface
+ * name to identify the interface to set TCP/UDP offload checksum
+ * calculation.
+ *
+ * @cliexpar
+ * Example of how to set TCP/UDP offload checksum calculation on host-vpp0:
+ * @cliexcmd{set host-interface l4-cksum-offload host-vpp0 off}
+ * @cliexcmd{set host-interface l4-cksum-offload host-vpp0 on}
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (af_packet_set_l4_cksum_offload_command, static) = {
+  .path = "set host-interface l4-cksum-offload",
+  .short_help = "set host-interface l4-cksum-offload <host-if-name> <on|off>",
+  .function = af_packet_set_l4_cksum_offload_command_fn,
+};
+/* *INDENT-ON* */
+
 clib_error_t *
 af_packet_cli_init (vlib_main_t * vm)
 {