gso: Add gso feature arc

Type: refactor

Change-Id: Ib4a8e7e64093b2db1deda6663325080bc8337605
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>

1 files changed, 88 insertions, 0 deletions

diff --git a/src/vnet/gso/gso.c b/src/vnet/gso/gso.c
new file mode 100644
index 00000000000..c741b17bdd4
--- /dev/null
+++ b/src/vnet/gso/gso.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vlib/vlib.h>
+#include <vnet/vnet.h>
+#include <vppinfra/error.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/feature/feature.h>
+#include <vnet/l2/l2_in_out_feat_arc.h>
+#include <vnet/gso/gso.h>
+
+gso_main_t gso_main;
+
+int
+vnet_sw_interface_gso_enable_disable (u32 sw_if_index, u8 enable)
+{
+  ethernet_interface_t *eif;
+  vnet_sw_interface_t *si;
+  ethernet_main_t *em;
+  vnet_main_t *vnm;
+
+  vnm = vnet_get_main ();
+  em = &ethernet_main;
+  si = vnet_get_sw_interface (vnm, sw_if_index);
+
+  /*
+   * only ethernet HW interfaces are supported at this time
+   */
+  if (si->type != VNET_SW_INTERFACE_TYPE_HARDWARE)
+    {
+      return (VNET_API_ERROR_INVALID_VALUE);
+    }
+
+  eif = ethernet_get_interface (em, si->hw_if_index);
+
+  if (!eif)
+    {
+      return (VNET_API_ERROR_FEATURE_DISABLED);
+    }
+
+  vnet_feature_enable_disable ("ip4-output", "gso-ip4", sw_if_index, enable,
+			       0, 0);
+  vnet_feature_enable_disable ("ip6-output", "gso-ip6", sw_if_index, enable,
+			       0, 0);
+
+  vnet_l2_feature_enable_disable ("l2-output-nonip", "gso-l2-nonip",
+				  sw_if_index, enable, 0, 0);
+  vnet_l2_feature_enable_disable ("l2-output-ip4", "gso-l2-ip4",
+				  sw_if_index, enable, 0, 0);
+  vnet_l2_feature_enable_disable ("l2-output-ip6", "gso-l2-ip6",
+				  sw_if_index, enable, 0, 0);
+
+  return (0);
+}
+
+static clib_error_t *
+gso_init (vlib_main_t * vm)
+{
+  gso_main_t *gm = &gso_main;
+
+  clib_memset (gm, 0, sizeof (gm[0]));
+  gm->vlib_main = vm;
+  gm->vnet_main = vnet_get_main ();
+
+  return 0;
+}
+
+VLIB_INIT_FUNCTION (gso_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */