X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Finterface_funcs.h;h=c4dd3b72e517d823297984bfa08a37986a6107c2;hb=d723161;hp=3f910f9d13f24fc587814ccb72e2c6ae23d24eb9;hpb=a35cc14d37466f0737fa928d25697fbfe6e7d657;p=vpp.git

diff --git a/src/vnet/interface_funcs.h b/src/vnet/interface_funcs.h
index 3f910f9d13f..c4dd3b72e51 100644
--- a/src/vnet/interface_funcs.h
+++ b/src/vnet/interface_funcs.h
@@ -147,11 +147,20 @@ vnet_clear_sw_interface_tag (vnet_main_t * vnm, u32 sw_if_index)
     }
 }
 
+/**
+ * Walk return code
+ */
+typedef enum walk_rc_t_
+{
+  WALK_STOP,
+  WALK_CONTINUE,
+} walk_rc_t;
+
 /**
  * Call back walk type for walking SW indices on a HW interface
  */
-typedef void (*vnet_hw_sw_interface_walk_t) (vnet_main_t * vnm,
-					     u32 sw_if_index, void *ctx);
+typedef walk_rc_t (*vnet_hw_sw_interface_walk_t) (vnet_main_t * vnm,
+						  u32 sw_if_index, void *ctx);
 
 /**
  * @brief
@@ -162,6 +171,20 @@ void vnet_hw_interface_walk_sw (vnet_main_t * vnm,
 				u32 hw_if_index,
 				vnet_hw_sw_interface_walk_t fn, void *ctx);
 
+/**
+ * Call back walk type for walking SW indices on a HW interface
+ */
+typedef walk_rc_t (*vnet_sw_interface_walk_t) (vnet_main_t * vnm,
+					       vnet_sw_interface_t * si,
+					       void *ctx);
+
+/**
+ * @brief
+ * Walk all the SW interfaces in the system.
+ */
+void vnet_sw_interface_walk (vnet_main_t * vnm,
+			     vnet_sw_interface_walk_t fn, void *ctx);
+
 /* Register a hardware interface instance. */
 u32 vnet_register_interface (vnet_main_t * vnm,
 			     u32 dev_class_index,
@@ -239,20 +262,22 @@ vnet_hw_interface_get_flags (vnet_main_t * vnm, u32 hw_if_index)
   return hw->flags;
 }
 
-always_inline uword
-vnet_hw_interface_get_mtu (vnet_main_t * vnm, u32 hw_if_index,
-			   vlib_rx_or_tx_t dir)
+always_inline u32
+vnet_hw_interface_get_mtu (vnet_main_t * vnm, u32 hw_if_index)
 {
   vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
-  return hw->max_l3_packet_bytes[dir];
+  return hw->max_packet_bytes;
 }
 
-always_inline uword
-vnet_sw_interface_get_mtu (vnet_main_t * vnm, u32 sw_if_index,
-			   vlib_rx_or_tx_t dir)
+always_inline u32
+vnet_sw_interface_get_mtu (vnet_main_t * vnm, u32 sw_if_index, vnet_mtu_t af)
 {
-  vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
-  return (hw->max_l3_packet_bytes[dir]);
+  vnet_sw_interface_t *sw = vnet_get_sw_interface (vnm, sw_if_index);
+  u32 mtu;
+  mtu = sw->mtu[af] > 0 ? sw->mtu[af] : sw->mtu[VNET_MTU_L3];
+  if (mtu == 0)
+    return 9000;		/* $$$ Deal with interface-types not setting MTU */
+  return mtu;
 }
 
 always_inline uword
@@ -316,6 +341,11 @@ clib_error_t *set_hw_interface_change_rx_mode (vnet_main_t * vnm,
 /* Set the MTU on the HW interface */
 void vnet_hw_interface_set_mtu (vnet_main_t * vnm, u32 hw_if_index, u32 mtu);
 
+/* Set the MTU on the SW interface */
+void vnet_sw_interface_set_mtu (vnet_main_t * vnm, u32 sw_if_index, u32 mtu);
+void vnet_sw_interface_set_protocol_mtu (vnet_main_t * vnm, u32 sw_if_index,
+					 u32 mtu[]);
+
 /* update the unnumbered state of an interface */
 void vnet_sw_interface_update_unnumbered (u32 sw_if_index,
 					  u32 ip_sw_if_index, u8 enable);