X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fip%2Fip_packet.h;h=e67cec1512f1f06292573adcea12c0718a6a817e;hb=3ec09e9243dceb78e7548725281b0da8eddf72b1;hp=63a59f87668beff01850b6bdc195143fa08fe6c5;hpb=5b1379be3e25df096d97dcd217965169fc6bb1b2;p=vpp.git

diff --git a/src/vnet/ip/ip_packet.h b/src/vnet/ip/ip_packet.h
index 63a59f87668..e67cec1512f 100644
--- a/src/vnet/ip/ip_packet.h
+++ b/src/vnet/ip/ip_packet.h
@@ -48,7 +48,7 @@ typedef enum ip_protocol
 #define ip_protocol(n,s) IP_PROTOCOL_##s = n,
 #include "protocols.def"
 #undef ip_protocol
-} ip_protocol_t;
+} __clib_packed ip_protocol_t;
 
 /* TCP/UDP ports. */
 typedef enum
@@ -118,10 +118,35 @@ typedef enum ip_dscp_t_
 #undef _
 } __clib_packed ip_dscp_t;
 
-STATIC_ASSERT_SIZEOF (ip_dscp_t, 1);
-
 extern u8 *format_ip_dscp (u8 * s, va_list * va);
 
+/**
+ * IP DSCP bit shift
+ *  The ECN occupies the 2 least significant bits of the TC field
+ */
+#define IP_PACKET_TC_FIELD_DSCP_BIT_SHIFT 2
+#define IP_PACKET_TC_FIELD_ECN_MASK 0x03
+
+/**
+ * The set of RFC defined DSCP values.
+ */
+#define foreach_ip_ecn                        \
+  _(0, NON_ECN)                               \
+  _(1, ECT_0)                                 \
+  _(2, ECT_1)                                 \
+  _(3, CE)
+
+typedef enum ip_ecn_t_
+{
+#define _(n,f) IP_ECN_##f = n,
+  foreach_ip_ecn
+#undef _
+} __clib_packed ip_ecn_t;
+
+STATIC_ASSERT_SIZEOF (ip_ecn_t, 1);
+
+extern u8 *format_ip_ecn (u8 * s, va_list * va);
+
 /* IP checksum support. */
 
 static_always_inline u16