X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fpg%2Fstream.c;h=f09e9a44398a575ee66304be825169b156b02e3e;hb=287d5e109;hp=bf0eac370aa678c7360a20e76caf708136b912b0;hpb=178cf493d009995b28fdf220f04c98860ff79a9b;p=vpp.git

diff --git a/src/vnet/pg/stream.c b/src/vnet/pg/stream.c
index bf0eac370aa..f09e9a44398 100644
--- a/src/vnet/pg/stream.c
+++ b/src/vnet/pg/stream.c
@@ -179,7 +179,8 @@ pg_eth_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
 }
 
 u32
-pg_interface_add_or_get (pg_main_t * pg, uword if_id)
+pg_interface_add_or_get (pg_main_t * pg, uword if_id, u8 gso_enabled,
+			 u32 gso_size)
 {
   vnet_main_t *vnm = vnet_get_main ();
   vlib_main_t *vm = vlib_get_main ();
@@ -213,6 +214,12 @@ pg_interface_add_or_get (pg_main_t * pg, uword if_id)
       ethernet_register_interface (vnm, pg_dev_class.index, i, hw_addr,
 				   &pi->hw_if_index, pg_eth_flag_change);
       hi = vnet_get_hw_interface (vnm, pi->hw_if_index);
+      if (gso_enabled)
+	{
+	  hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
+	  pi->gso_enabled = 1;
+	  pi->gso_size = gso_size;
+	}
       pi->sw_if_index = hi->sw_if_index;
 
       hash_set (pg->if_index_by_if_id, if_id, i);
@@ -435,32 +442,30 @@ pg_stream_add (pg_main_t * pg, pg_stream_t * s_init)
   s->last_increment_packet_size = s->min_packet_bytes;
 
   {
-    pg_buffer_index_t *bi;
     int n;
 
-    s->buffer_bytes = VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES;
+    s->buffer_bytes = vlib_buffer_get_default_data_size (vm);
     n = s->max_packet_bytes / s->buffer_bytes;
     n += (s->max_packet_bytes % s->buffer_bytes) != 0;
 
     vec_resize (s->buffer_indices, n);
-
-    vec_foreach (bi, s->buffer_indices)
-      bi->free_list_index = VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX;
   }
 
   /* Find an interface to use. */
-  s->pg_if_index = pg_interface_add_or_get (pg, s->if_id);
-
-  {
-    pg_interface_t *pi = pool_elt_at_index (pg->interfaces, s->pg_if_index);
-    vlib_rx_or_tx_t rx_or_tx;
+  s->pg_if_index =
+    pg_interface_add_or_get (pg, s->if_id, 0 /* gso_enabled */ ,
+			     0 /* gso_size */ );
 
-    vlib_foreach_rx_tx (rx_or_tx)
+  if (s->sw_if_index[VLIB_RX] == ~0)
     {
-      if (s->sw_if_index[rx_or_tx] == ~0)
-	s->sw_if_index[rx_or_tx] = pi->sw_if_index;
+      pg_interface_t *pi = pool_elt_at_index (pg->interfaces, s->pg_if_index);
+      /*
+       * Default the RX interface if unset. It's a bad mistake to
+       * set [VLIB_TX] prior to ip lookup, since the ip lookup code
+       * interprets [VLIB_TX] as a fib index...
+       */
+      s->sw_if_index[VLIB_RX] = pi->sw_if_index;
     }
-  }
 
   /* Connect the graph. */
   s->next_index = vlib_node_add_next (vm, device_input_node.index,
@@ -487,6 +492,31 @@ pg_stream_del (pg_main_t * pg, uword index)
   pool_put (pg->streams, s);
 }
 
+void
+pg_stream_change (pg_main_t * pg, pg_stream_t * s)
+{
+  /* Determine packet size. */
+  switch (s->packet_size_edit_type)
+    {
+    case PG_EDIT_INCREMENT:
+    case PG_EDIT_RANDOM:
+      if (s->min_packet_bytes == s->max_packet_bytes)
+	s->packet_size_edit_type = PG_EDIT_FIXED;
+    case PG_EDIT_FIXED:
+      break;
+
+    default:
+      /* Get packet size from fixed edits. */
+      s->packet_size_edit_type = PG_EDIT_FIXED;
+      if (!s->replay_packet_templates)
+	s->min_packet_bytes = s->max_packet_bytes =
+	  vec_len (s->fixed_packet_data);
+      break;
+    }
+
+  s->last_increment_packet_size = s->min_packet_bytes;
+}
+
 
 /*
  * fd.io coding-style-patch-verification: ON