X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fbuffer.h;h=7afd16bdfcdbea371210ad53c00b1aad28b7e3b4;hb=470a3704e38d710018f1aa55c8bf857e55fbc069;hp=d701e21141d19af11e84e6a5bfed2699ffee34ad;hpb=7fff3d205463d5e0a95d6bdd337100988ef323a3;p=vpp.git

diff --git a/src/vnet/buffer.h b/src/vnet/buffer.h
index d701e21141d..7afd16bdfcd 100644
--- a/src/vnet/buffer.h
+++ b/src/vnet/buffer.h
@@ -44,6 +44,7 @@
 
 /**
  * Flags that are set in the high order bits of ((vlib_buffer*)b)->flags
+ *
  */
 #define foreach_vnet_buffer_flag                        \
   _( 1, L4_CHECKSUM_COMPUTED, "l4-cksum-computed", 1)	\
@@ -64,7 +65,26 @@
   _(16, L4_HDR_OFFSET_VALID, "l4_hdr_offset_valid", 0)  \
   _(17, FLOW_REPORT, "flow-report", 1)                  \
   _(18, IS_DVR, "dvr", 1)                               \
-  _(19, QOS_DATA_VALID, "qos-data-valid", 0)
+  _(19, QOS_DATA_VALID, "qos-data-valid", 0)            \
+  _(20, GSO, "gso", 0)                                  \
+  _(21, AVAIL1, "avail1", 1)                            \
+  _(22, AVAIL2, "avail2", 1)                            \
+  _(23, AVAIL3, "avail3", 1)                            \
+  _(24, AVAIL4, "avail4", 1)                            \
+  _(25, AVAIL5, "avail5", 1)                            \
+  _(26, AVAIL6, "avail6", 1)                            \
+  _(27, AVAIL7, "avail7", 1)
+
+/*
+ * Please allocate the FIRST available bit, redefine
+ * AVAIL 1 ... AVAILn-1, and remove AVAILn. Please maintain the
+ * VNET_BUFFER_FLAGS_ALL_AVAIL definition.
+ */
+
+#define VNET_BUFFER_FLAGS_ALL_AVAIL                                     \
+  (VNET_BUFFER_F_AVAIL1 | VNET_BUFFER_F_AVAIL2 | VNET_BUFFER_F_AVAIL3 | \
+   VNET_BUFFER_F_AVAIL4 | VNET_BUFFER_F_AVAIL5 | VNET_BUFFER_F_AVAIL6 | \
+   VNET_BUFFER_F_AVAIL7)
 
 #define VNET_BUFFER_FLAGS_VLAN_BITS \
   (VNET_BUFFER_F_VLAN_1_DEEP | VNET_BUFFER_F_VLAN_2_DEEP)
@@ -83,6 +103,10 @@ enum
 #undef _
 };
 
+/* Make sure that the vnet and vlib bits are disjoint */
+STATIC_ASSERT (((VNET_BUFFER_FLAGS_ALL_AVAIL & VLIB_BUFFER_FLAGS_ALL) == 0),
+	       "VLIB / VNET buffer flags overlap");
+
 #define foreach_buffer_opaque_union_subtype     \
 _(ip)                                           \
 _(l2)                                           \
@@ -166,6 +190,7 @@ typedef struct
 	  {
 	    u32 next_index;	/* index of next node - ignored if "feature" node */
 	    u16 estimated_mtu;	/* estimated MTU calculated during reassembly */
+	    u16 owner_thread_index;
 	  };
 	  /* internal variables used during reassembly */
 	  struct
@@ -176,6 +201,7 @@ typedef struct
 	    u16 range_last;
 	    u32 next_range_bi;
 	    u16 ip6_frag_hdr_offset;
+	    u16 owner_feature_thread_index;
 	  };
 	} reass;
       };
@@ -365,9 +391,27 @@ typedef struct
   {
     u8 __unused;
     u8 flags;
-    u16 src_epg;
+    union
+    {
+      u16 src_epg;
+      u16 sclass;
+    };
   } gbp;
 
+  /**
+   * The L4 payload size set on input on GSO enabled interfaces
+   * when we receive a GSO packet (a chain of buffers with the first one
+   * having GSO bit set), and needs to persist all the way to the interface-output,
+   * in case the egress interface is not GSO-enabled - then we need to perform
+   * the segmentation, and use this value to cut the payload appropriately.
+   */
+  u16 gso_size;
+  /* size of L4 prototol header */
+  u16 gso_l4_hdr_sz;
+
+  /* The union below has a u64 alignment, so this space is unused */
+  u32 __unused2[1];
+
   union
   {
     struct
@@ -382,7 +426,7 @@ typedef struct
       u64 pad[1];
       u64 pg_replay_timestamp;
     };
-    u32 unused[10];
+    u32 unused[8];
   };
 } vnet_buffer_opaque2_t;
 
@@ -396,6 +440,9 @@ STATIC_ASSERT (sizeof (vnet_buffer_opaque2_t) <=
 	       STRUCT_SIZE_OF (vlib_buffer_t, opaque2),
 	       "VNET buffer opaque2 meta-data too large for vlib_buffer");
 
+#define gso_mtu_sz(b) (vnet_buffer2(b)->gso_size + vnet_buffer2(b)->gso_l4_hdr_sz + vnet_buffer(b)->l4_hdr_offset)
+
+
 format_function_t format_vnet_buffer;
 
 #endif /* included_vnet_buffer_h */