Detailed stats collection feature

Use device-input and interface-output feautre arcs to collect unicast, multicast
and broadcast states for RX and TX resp. Since these feature arcs are present only
for 'physical' interfaces (i.e. not su-interfaces) counter collection is supported
only on parent interface types.

Change-Id: I915c235e336b0fc3a3c3de918f95dd674e4e0e4e
Signed-off-by: Neale Ranns <nranns@cisco.com>
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/src/vnet/ethernet/packet.h b/src/vnet/ethernet/packet.h
index 09f5e7f3d0b..1a0506dc4d6 100644
--- a/src/vnet/ethernet/packet.h
+++ b/src/vnet/ethernet/packet.h
@@ -40,6 +40,8 @@
 #ifndef included_ethernet_packet_h
 #define included_ethernet_packet_h
 
+#include <vnet/interface.h>
+
 typedef enum
 {
 #define ethernet_type(n,s) ETHERNET_TYPE_##s = n,
@@ -67,6 +69,13 @@ ethernet_address_cast (u8 * a)
   return (a[0] >> 0) & 1;
 }
 
+always_inline int
+ethernet_address_is_broadcast (u8 * a)
+{
+  return clib_mem_unaligned (a, u32) == 0xffffffff &&
+    clib_mem_unaligned (a + 4, u16) == 0xffff;
+}
+
 always_inline uword
 ethernet_address_is_locally_administered (u8 * a)
 {
@@ -79,6 +88,42 @@ ethernet_address_set_locally_administered (u8 * a)
   a[0] |= 1 << 1;
 }
 
+always_inline int
+eh_dst_addr_to_rx_ctype (ethernet_header_t * eh)
+{
+  if (PREDICT_TRUE (ethernet_address_cast (eh->dst_address) ==
+		    ETHERNET_ADDRESS_UNICAST))
+    {
+      return VNET_INTERFACE_COUNTER_RX_UNICAST;
+    }
+  else if (ethernet_address_is_broadcast (eh->dst_address))
+    {
+      return VNET_INTERFACE_COUNTER_RX_BROADCAST;
+    }
+  else
+    {
+      return VNET_INTERFACE_COUNTER_RX_MULTICAST;
+    }
+}
+
+always_inline int
+eh_dst_addr_to_tx_ctype (ethernet_header_t * eh)
+{
+  if (PREDICT_TRUE (ethernet_address_cast (eh->dst_address) ==
+		    ETHERNET_ADDRESS_UNICAST))
+    {
+      return VNET_INTERFACE_COUNTER_TX_UNICAST;
+    }
+  else if (ethernet_address_is_broadcast (eh->dst_address))
+    {
+      return VNET_INTERFACE_COUNTER_TX_BROADCAST;
+    }
+  else
+    {
+      return VNET_INTERFACE_COUNTER_TX_MULTICAST;
+    }
+}
+
 /* For VLAN ethernet type. */
 typedef struct
 {