Multiversioning: Device (tx) function constructor

[vpp.git] / src / vnet / interface.h

diff --git a/src/vnet/interface.h b/src/vnet/interface.h
index d869b0c..e9adfe8 100644 (file)
--- a/src/vnet/interface.h
+++ b/src/vnet/interface.h
@@ -195,6 +195,9 @@ typedef struct _vnet_device_class
   /* Transmit function. */
   vlib_node_function_t *tx_function;
 
+  /* Transmit function candidate registration with priority */
+  vlib_node_fn_registration_t *tx_fn_registrations;
+
   /* Error strings indexed by error code for this node. */
   char **tx_function_error_strings;
 
@@ -265,6 +268,24 @@ static void __vnet_rm_device_class_registration_##x (void)              \
 }                                                                       \
 __VA_ARGS__ vnet_device_class_t x
 
+#define VNET_DEVICE_CLASS_TX_FN(devclass)                              \
+uword CLIB_MARCH_SFX (devclass##_tx_fn)();                             \
+static vlib_node_fn_registration_t                                     \
+  CLIB_MARCH_SFX(devclass##_tx_fn_registration) =                      \
+  { .function = &CLIB_MARCH_SFX (devclass##_tx_fn), };                 \
+                                                                       \
+static void __clib_constructor                                         \
+CLIB_MARCH_SFX (devclass##_tx_fn_multiarch_register) (void)            \
+{                                                                      \
+  extern vnet_device_class_t devclass;                                 \
+  vlib_node_fn_registration_t *r;                                      \
+  r = &CLIB_MARCH_SFX (devclass##_tx_fn_registration);                 \
+  r->priority = CLIB_MARCH_FN_PRIORITY();                              \
+  r->next_registration = devclass.tx_fn_registrations;                 \
+  devclass.tx_fn_registrations = r;                                    \
+}                                                                      \
+uword CLIB_CPU_OPTIMIZED CLIB_MARCH_SFX (devclass##_tx_fn)
+
 #define VLIB_DEVICE_TX_FUNCTION_CLONE_TEMPLATE(arch, fn, tgt)          \
   uword                                                                        \
   __attribute__ ((flatten))                                            \