ipsec: Support async mode per-SA
[vpp.git] / src / vnet / devices / pipe / pipe.c
index aea766a..ec50f63 100644 (file)
@@ -21,7 +21,7 @@
  * @file
  * @brief Pipe Interfaces.
  *
- * A pipe interface, like the UNIX pipe, is a pair of interfaces
+ * A pipe interface, like the UNIX pipe, is a pair of vpp interfaces
  * that are joined.
  */
 const static pipe_t PIPE_INVALID = {
@@ -30,7 +30,7 @@ const static pipe_t PIPE_INVALID = {
 };
 
 /**
- * Various 'module' lavel variables
+ * Various 'module' level variables
  */
 typedef struct pipe_main_t_
 {
@@ -40,7 +40,7 @@ typedef struct pipe_main_t_
   uword *instances;
 
   /**
-   * the per-swif-index array of pipes. Each end of the pipe is stored againt
+   * the per-swif-index array of pipes. Each end of the pipe is stored against
    * its respective sw_if_index
    */
   pipe_t *pipes;
@@ -51,7 +51,7 @@ static pipe_main_t pipe_main;
 /*
  * The pipe rewrite is the same size as an ethernet header (since it
  * is an ethernet interface and the DP is optimised for writing
- * sizeof(ethernet_header_t) rewirtes. Hwoever, there are no MAC addresses
+ * sizeof(ethernet_header_t) rewrites. However, there are no MAC addresses
  * since pipes don't have them.
  */
 static u8 *
@@ -131,16 +131,12 @@ pipe_tx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
 {
   u32 n_left_from, n_left_to_next, n_copy, *from, *to_next;
   u32 next_index = VNET_PIPE_TX_NEXT_ETHERNET_INPUT;
-  u32 i, sw_if_index = 0;
-  u32 n_pkts = 0, n_bytes = 0;
-  u32 thread_index = vm->thread_index;
-  vnet_main_t *vnm = vnet_get_main ();
-  vnet_interface_main_t *im = &vnm->interface_main;
+  u32 i, sw_if_index = 0, n_pkts = 0, n_bytes = 0;
   vlib_buffer_t *b;
   pipe_t *pipe;
 
   n_left_from = frame->n_vectors;
-  from = vlib_frame_args (frame);
+  from = vlib_frame_vector_args (frame);
 
   while (n_left_from > 0)
     {
@@ -148,7 +144,7 @@ pipe_tx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
 
       n_copy = clib_min (n_left_from, n_left_to_next);
 
-      clib_memcpy (to_next, from, n_copy * sizeof (from[0]));
+      clib_memcpy_fast (to_next, from, n_copy * sizeof (from[0]));
       n_left_to_next -= n_copy;
       n_left_from -= n_copy;
       i = 0;
@@ -169,15 +165,9 @@ pipe_tx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
       from += n_copy;
 
       vlib_put_next_frame (vm, node, next_index, n_left_to_next);
-
-      /* increment TX interface stat */
-      vlib_increment_combined_counter (im->combined_sw_if_counters +
-                                      VNET_INTERFACE_COUNTER_TX,
-                                      thread_index, sw_if_index, n_pkts,
-                                      n_bytes);
     }
 
-  return n_left_from;
+  return frame->n_vectors;
 }
 
 static u8 *
@@ -359,38 +349,40 @@ pipe_rx (vlib_main_t * vm,
          pipe0 = &pipe_main.pipes[sw_if_index0];
          pipe1 = &pipe_main.pipes[sw_if_index1];
 
+         vnet_buffer (b0)->l2_hdr_offset = b0->current_data;
+         vnet_buffer (b1)->l2_hdr_offset = b1->current_data;
+
          vnet_buffer (b0)->l3_hdr_offset =
-           vnet_buffer (b0)->l2_hdr_offset + vnet_buffer (b0)->l2.l2_len;
+           vnet_buffer (b0)->l2_hdr_offset + sizeof (ethernet_header_t);
          vnet_buffer (b1)->l3_hdr_offset =
-           vnet_buffer (b1)->l2_hdr_offset + vnet_buffer (b1)->l2.l2_len;
-         b0->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
-         b1->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
+           vnet_buffer (b1)->l2_hdr_offset + sizeof (ethernet_header_t);
+         b0->flags |=
+           VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
+           VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
+         b1->flags |=
+           VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
+           VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
 
          is_l20 = pipe0->subint.flags & SUBINT_CONFIG_L2;
          is_l21 = pipe1->subint.flags & SUBINT_CONFIG_L2;
+
+         /*
+          * from discussion with Neale - we do not support the tagged traffic.
+          * So assume a simple ethernet header
+          */
+         vnet_buffer (b0)->l2.l2_len = sizeof (ethernet_header_t);
+         vnet_buffer (b1)->l2.l2_len = sizeof (ethernet_header_t);
+         vlib_buffer_advance (b0, is_l20 ? 0 : sizeof (ethernet_header_t));
+         vlib_buffer_advance (b1, is_l21 ? 0 : sizeof (ethernet_header_t));
+
          pipe_determine_next_node (&ethernet_main, is_l20, type0, b0,
                                    &next0);
          pipe_determine_next_node (&ethernet_main, is_l21, type1, b1,
                                    &next1);
 
-         if (!is_l20)
-           vlib_buffer_advance (b0, sizeof (ethernet_header_t));
-         else
-           {
-             u32 eth_start = vnet_buffer (b0)->l2_hdr_offset;
-             vnet_buffer (b0)->l2.l2_len = b0->current_data - eth_start;
-           }
-         if (!is_l21)
-           vlib_buffer_advance (b1, sizeof (ethernet_header_t));
-         else
-           {
-             u32 eth_start = vnet_buffer (b1)->l2_hdr_offset;
-             vnet_buffer (b1)->l2.l2_len = b1->current_data - eth_start;
-           }
-
          vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
                                           to_next, n_left_to_next,
-                                          bi0, bi1, next0, next0);
+                                          bi0, bi1, next0, next1);
        }
       while (n_left_from > 0 && n_left_to_next > 0)
        {
@@ -416,22 +408,21 @@ pipe_rx (vlib_main_t * vm,
          type0 = clib_net_to_host_u16 (e0->type);
          pipe0 = &pipe_main.pipes[sw_if_index0];
 
+         vnet_buffer (b0)->l2_hdr_offset = b0->current_data;
          vnet_buffer (b0)->l3_hdr_offset =
-           vnet_buffer (b0)->l2_hdr_offset + vnet_buffer (b0)->l2.l2_len;
-         b0->flags |= VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
+           vnet_buffer (b0)->l2_hdr_offset + sizeof (ethernet_header_t);
+         b0->flags |=
+           VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
+           VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
 
          is_l20 = pipe0->subint.flags & SUBINT_CONFIG_L2;
+
+         vnet_buffer (b0)->l2.l2_len = sizeof (ethernet_header_t);
+         vlib_buffer_advance (b0, is_l20 ? 0 : sizeof (ethernet_header_t));
+
          pipe_determine_next_node (&ethernet_main, is_l20, type0, b0,
                                    &next0);
 
-         if (!is_l20)
-           vlib_buffer_advance (b0, sizeof (ethernet_header_t));
-         else
-           {
-             u32 eth_start = vnet_buffer (b0)->l2_hdr_offset;
-             vnet_buffer (b0)->l2.l2_len = b0->current_data - eth_start;
-           }
-
          vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
                                           to_next, n_left_to_next,
                                           bi0, next0);
@@ -526,7 +517,7 @@ pipe_create_sub_interface (vnet_hw_interface_t * hi,
 {
   vnet_sw_interface_t template;
 
-  memset (&template, 0, sizeof (template));
+  clib_memset (&template, 0, sizeof (template));
   template.type = VNET_SW_INTERFACE_TYPE_PIPE;
   template.flood_class = VNET_FLOOD_CLASS_NORMAL;
   template.sup_sw_if_index = hi->sw_if_index;
@@ -556,7 +547,7 @@ vnet_create_pipe_interface (u8 is_specified,
 
   ASSERT (parent_sw_if_index);
 
-  memset (address, 0, sizeof (address));
+  clib_memset (address, 0, sizeof (address));
 
   /*
    * Allocate a pipe instance.  Either select one dynamically