dpdk: allow configure individual VMBUS devices

now startup.conf supports confuguration for VMBUS
devices as for PCI devices for whitelisting/blacklisting

dpdk { dev fa5a6e7a-cf3a-4b98-9569-addb479b84bc }
 with sub-configuration as for PCI devices
dpdk { blacklist fa5a6e7a-cf3a-4b98-9569-addb479b84bc }
 where fa5a6e7a-cf3a-4b98-9569-addb479b84bc - example of UUID

struct vlib_vmbus_addr_t changed to union with UUID described
 fields

Added device_config_index_by_vmbus_addr
      blacklist_by_vmbus_addr
to enumerate available device configs

hash_key is as_u32[0] field(last 4 bytes of UUID)
Lost of precision against full UUID, but 2^32 is enough
to handle all the devices available

Added is_blacklisted check while creating vnet devices in
order to supress creation of dev if it's blacklisted

Type: feature

Signed-off-by: Vladimir Ratnikov <vratnikov@netgate.com>
Change-Id: Id82611e54fed082190e488c7e5fbe14ecbe5b2ab

2 files changed, 19 insertions, 2 deletions

diff --git a/src/vlib/vmbus/vmbus.c b/src/vlib/vmbus/vmbus.c
index eadf5f176d6..045e2dd9503 100644
--- a/src/vlib/vmbus/vmbus.c
+++ b/src/vlib/vmbus/vmbus.c
@@ -25,11 +25,24 @@
 #include <net/if.h>
 
 /* this is a stub replaced by the Linux specfic version */
-vlib_vmbus_addr_t * __attribute__ ((weak)) vlib_vmbus_get_all_dev_addrs ()
+vlib_vmbus_addr_t *__clib_weak
+vlib_vmbus_get_all_dev_addrs ()
 {
   return NULL;
 }
 
+u8 *__clib_weak
+format_vlib_vmbus_addr (u8 *s, va_list *va)
+{
+  return 0;
+}
+
+uword __clib_weak
+unformat_vlib_vmbus_addr (unformat_input_t *input, va_list *args)
+{
+  return 0;
+}
+
 clib_error_t *
 vmbus_bus_init (vlib_main_t * vm)
 {
diff --git a/src/vlib/vmbus/vmbus.h b/src/vlib/vmbus/vmbus.h
index 0927b8990d6..7df62ab4d16 100644
--- a/src/vlib/vmbus/vmbus.h
+++ b/src/vlib/vmbus/vmbus.h
@@ -21,10 +21,12 @@
 
 #include <vlib/vlib.h>
 
-typedef struct
+typedef union
 {
   u8 guid[16];
+  u32 as_u32[4];
 } vlib_vmbus_addr_t;
+
 typedef u32 vlib_vmbus_dev_handle_t;
 
 vlib_vmbus_addr_t *vlib_vmbus_get_all_dev_addrs ();
@@ -33,6 +35,8 @@ uword vlib_vmbus_get_private_data (vlib_vmbus_dev_handle_t h);
 void vlib_vmbus_set_private_data (vlib_vmbus_dev_handle_t h,
 				  uword private_data);
 
+format_function_t format_vlib_vmbus_addr;
+unformat_function_t unformat_vlib_vmbus_addr;
 clib_error_t *vlib_vmbus_bind_to_uio (vlib_vmbus_addr_t * addr);
 #endif /* included_vlib_vmbus_h */