Reorganize source tree to use single autotools instance

Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 0 insertions, 1667 deletions

diff --git a/vnet/vnet/pg/input.c b/vnet/vnet/pg/input.c
deleted file mode 100644
index e15faeb8564..00000000000
--- a/vnet/vnet/pg/input.c
+++ /dev/null
@@ -1,1667 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-/*
- * pg_input.c: buffer generator input
- *
- * Copyright (c) 2008 Eliot Dresselhaus
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <vlib/vlib.h>
-#include <vnet/pg/pg.h>
-#include <vnet/vnet.h>
-#include <vnet/feature/feature.h>
-#include <vnet/devices/devices.h>
-
-static int
-validate_buffer_data2 (vlib_buffer_t * b, pg_stream_t * s,
-		       u32 data_offset, u32 n_bytes)
-{
-  u8 *bd, *pd, *pm;
-  u32 i;
-
-  bd = b->data;
-  pd = s->fixed_packet_data + data_offset;
-  pm = s->fixed_packet_data_mask + data_offset;
-
-  if (pd + n_bytes >= vec_end (s->fixed_packet_data))
-    n_bytes = (pd < vec_end (s->fixed_packet_data)
-	       ? vec_end (s->fixed_packet_data) - pd : 0);
-
-  for (i = 0; i < n_bytes; i++)
-    if ((bd[i] & pm[i]) != pd[i])
-      break;
-
-  if (i >= n_bytes)
-    return 1;
-
-  clib_warning ("buffer %U", format_vlib_buffer, b);
-  clib_warning ("differ at index %d", i);
-  clib_warning ("is     %U", format_hex_bytes, bd, n_bytes);
-  clib_warning ("mask   %U", format_hex_bytes, pm, n_bytes);
-  clib_warning ("expect %U", format_hex_bytes, pd, n_bytes);
-  return 0;
-}
-
-static int
-validate_buffer_data (vlib_buffer_t * b, pg_stream_t * s)
-{
-  return validate_buffer_data2 (b, s, 0, s->buffer_bytes);
-}
-
-always_inline void
-set_1 (void *a0,
-       u64 v0, u64 v_min, u64 v_max, u32 n_bits, u32 is_net_byte_order)
-{
-  ASSERT (v0 >= v_min && v0 <= v_max);
-  if (n_bits == BITS (u8))
-    {
-      ((u8 *) a0)[0] = v0;
-    }
-  else if (n_bits == BITS (u16))
-    {
-      if (is_net_byte_order)
-	v0 = clib_host_to_net_u16 (v0);
-      clib_mem_unaligned (a0, u16) = v0;
-    }
-  else if (n_bits == BITS (u32))
-    {
-      if (is_net_byte_order)
-	v0 = clib_host_to_net_u32 (v0);
-      clib_mem_unaligned (a0, u32) = v0;
-    }
-  else if (n_bits == BITS (u64))
-    {
-      if (is_net_byte_order)
-	v0 = clib_host_to_net_u64 (v0);
-      clib_mem_unaligned (a0, u64) = v0;
-    }
-}
-
-always_inline void
-set_2 (void *a0, void *a1,
-       u64 v0, u64 v1,
-       u64 v_min, u64 v_max,
-       u32 n_bits, u32 is_net_byte_order, u32 is_increment)
-{
-  ASSERT (v0 >= v_min && v0 <= v_max);
-  ASSERT (v1 >= v_min && v1 <= (v_max + is_increment));
-  if (n_bits == BITS (u8))
-    {
-      ((u8 *) a0)[0] = v0;
-      ((u8 *) a1)[0] = v1;
-    }
-  else if (n_bits == BITS (u16))
-    {
-      if (is_net_byte_order)
-	{
-	  v0 = clib_host_to_net_u16 (v0);
-	  v1 = clib_host_to_net_u16 (v1);
-	}
-      clib_mem_unaligned (a0, u16) = v0;
-      clib_mem_unaligned (a1, u16) = v1;
-    }
-  else if (n_bits == BITS (u32))
-    {
-      if (is_net_byte_order)
-	{
-	  v0 = clib_host_to_net_u32 (v0);
-	  v1 = clib_host_to_net_u32 (v1);
-	}
-      clib_mem_unaligned (a0, u32) = v0;
-      clib_mem_unaligned (a1, u32) = v1;
-    }
-  else if (n_bits == BITS (u64))
-    {
-      if (is_net_byte_order)
-	{
-	  v0 = clib_host_to_net_u64 (v0);
-	  v1 = clib_host_to_net_u64 (v1);
-	}
-      clib_mem_unaligned (a0, u64) = v0;
-      clib_mem_unaligned (a1, u64) = v1;
-    }
-}
-
-static_always_inline void
-do_set_fixed (pg_main_t * pg,
-	      pg_stream_t * s,
-	      u32 * buffers,
-	      u32 n_buffers,
-	      u32 n_bits,
-	      u32 byte_offset, u32 is_net_byte_order, u64 v_min, u64 v_max)
-{
-  vlib_main_t *vm = vlib_get_main ();
-
-  while (n_buffers >= 4)
-    {
-      vlib_buffer_t *b0, *b1, *b2, *b3;
-      void *a0, *a1;
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      b1 = vlib_get_buffer (vm, buffers[1]);
-      b2 = vlib_get_buffer (vm, buffers[2]);
-      b3 = vlib_get_buffer (vm, buffers[3]);
-      buffers += 2;
-      n_buffers -= 2;
-
-      a0 = (void *) b0 + byte_offset;
-      a1 = (void *) b1 + byte_offset;
-      CLIB_PREFETCH ((void *) b2 + byte_offset, sizeof (v_min), WRITE);
-      CLIB_PREFETCH ((void *) b3 + byte_offset, sizeof (v_min), WRITE);
-
-      set_2 (a0, a1, v_min, v_min, v_min, v_max, n_bits, is_net_byte_order,
-	     /* is_increment */ 0);
-
-      ASSERT (validate_buffer_data (b0, s));
-      ASSERT (validate_buffer_data (b1, s));
-    }
-
-  while (n_buffers > 0)
-    {
-      vlib_buffer_t *b0;
-      void *a0;
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      buffers += 1;
-      n_buffers -= 1;
-
-      a0 = (void *) b0 + byte_offset;
-
-      set_1 (a0, v_min, v_min, v_max, n_bits, is_net_byte_order);
-
-      ASSERT (validate_buffer_data (b0, s));
-    }
-}
-
-static_always_inline u64
-do_set_increment (pg_main_t * pg,
-		  pg_stream_t * s,
-		  u32 * buffers,
-		  u32 n_buffers,
-		  u32 n_bits,
-		  u32 byte_offset,
-		  u32 is_net_byte_order,
-		  u32 want_sum, u64 * sum_result, u64 v_min, u64 v_max, u64 v)
-{
-  vlib_main_t *vm = vlib_get_main ();
-  u64 sum = 0;
-
-  ASSERT (v >= v_min && v <= v_max);
-
-  while (n_buffers >= 4)
-    {
-      vlib_buffer_t *b0, *b1, *b2, *b3;
-      void *a0, *a1;
-      u64 v_old;
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      b1 = vlib_get_buffer (vm, buffers[1]);
-      b2 = vlib_get_buffer (vm, buffers[2]);
-      b3 = vlib_get_buffer (vm, buffers[3]);
-      buffers += 2;
-      n_buffers -= 2;
-
-      a0 = (void *) b0 + byte_offset;
-      a1 = (void *) b1 + byte_offset;
-      CLIB_PREFETCH ((void *) b2 + byte_offset, sizeof (v_min), WRITE);
-      CLIB_PREFETCH ((void *) b3 + byte_offset, sizeof (v_min), WRITE);
-
-      v_old = v;
-      v = v_old + 2;
-      v = v > v_max ? v_min : v;
-      set_2 (a0, a1,
-	     v_old + 0, v_old + 1, v_min, v_max, n_bits, is_net_byte_order,
-	     /* is_increment */ 1);
-
-      if (want_sum)
-	sum += 2 * v_old + 1;
-
-      if (PREDICT_FALSE (v_old + 1 > v_max))
-	{
-	  if (want_sum)
-	    sum -= 2 * v_old + 1;
-
-	  v = v_old;
-	  set_1 (a0, v + 0, v_min, v_max, n_bits, is_net_byte_order);
-	  if (want_sum)
-	    sum += v;
-	  v += 1;
-
-	  v = v > v_max ? v_min : v;
-	  set_1 (a1, v + 0, v_min, v_max, n_bits, is_net_byte_order);
-	  if (want_sum)
-	    sum += v;
-	  v += 1;
-	}
-
-      ASSERT (validate_buffer_data (b0, s));
-      ASSERT (validate_buffer_data (b1, s));
-    }
-
-  while (n_buffers > 0)
-    {
-      vlib_buffer_t *b0;
-      void *a0;
-      u64 v_old;
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      buffers += 1;
-      n_buffers -= 1;
-
-      a0 = (void *) b0 + byte_offset;
-
-      v_old = v;
-      if (want_sum)
-	sum += v_old;
-      v += 1;
-      v = v > v_max ? v_min : v;
-
-      ASSERT (v_old >= v_min && v_old <= v_max);
-      set_1 (a0, v_old, v_min, v_max, n_bits, is_net_byte_order);
-
-      ASSERT (validate_buffer_data (b0, s));
-    }
-
-  if (want_sum)
-    *sum_result = sum;
-
-  return v;
-}
-
-static_always_inline void
-do_set_random (pg_main_t * pg,
-	       pg_stream_t * s,
-	       u32 * buffers,
-	       u32 n_buffers,
-	       u32 n_bits,
-	       u32 byte_offset,
-	       u32 is_net_byte_order,
-	       u32 want_sum, u64 * sum_result, u64 v_min, u64 v_max)
-{
-  vlib_main_t *vm = vlib_get_main ();
-  u64 v_diff = v_max - v_min + 1;
-  u64 r_mask = max_pow2 (v_diff) - 1;
-  u64 v0, v1;
-  u64 sum = 0;
-  void *random_data;
-
-  random_data = clib_random_buffer_get_data
-    (&vm->random_buffer, n_buffers * n_bits / BITS (u8));
-
-  v0 = v1 = v_min;
-
-  while (n_buffers >= 4)
-    {
-      vlib_buffer_t *b0, *b1, *b2, *b3;
-      void *a0, *a1;
-      u64 r0 = 0, r1 = 0;	/* warnings be gone */
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      b1 = vlib_get_buffer (vm, buffers[1]);
-      b2 = vlib_get_buffer (vm, buffers[2]);
-      b3 = vlib_get_buffer (vm, buffers[3]);
-      buffers += 2;
-      n_buffers -= 2;
-
-      a0 = (void *) b0 + byte_offset;
-      a1 = (void *) b1 + byte_offset;
-      CLIB_PREFETCH ((void *) b2 + byte_offset, sizeof (v_min), WRITE);
-      CLIB_PREFETCH ((void *) b3 + byte_offset, sizeof (v_min), WRITE);
-
-      switch (n_bits)
-	{
-#define _(n)					\
-	  case BITS (u##n):			\
-	    {					\
-	      u##n * r = random_data;		\
-	      r0 = r[0];			\
-	      r1 = r[1];			\
-	      random_data = r + 2;		\
-	    }					\
-	  break;
-
-	  _(8);
-	  _(16);
-	  _(32);
-	  _(64);
-
-#undef _
-	}
-
-      /* Add power of 2 sized random number which may be out of range. */
-      v0 += r0 & r_mask;
-      v1 += r1 & r_mask;
-
-      /* Twice should be enough to reduce to v_min .. v_max range. */
-      v0 = v0 > v_max ? v0 - v_diff : v0;
-      v1 = v1 > v_max ? v1 - v_diff : v1;
-      v0 = v0 > v_max ? v0 - v_diff : v0;
-      v1 = v1 > v_max ? v1 - v_diff : v1;
-
-      if (want_sum)
-	sum += v0 + v1;
-
-      set_2 (a0, a1, v0, v1, v_min, v_max, n_bits, is_net_byte_order,
-	     /* is_increment */ 0);
-
-      ASSERT (validate_buffer_data (b0, s));
-      ASSERT (validate_buffer_data (b1, s));
-    }
-
-  while (n_buffers > 0)
-    {
-      vlib_buffer_t *b0;
-      void *a0;
-      u64 r0 = 0;		/* warnings be gone */
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      buffers += 1;
-      n_buffers -= 1;
-
-      a0 = (void *) b0 + byte_offset;
-
-      switch (n_bits)
-	{
-#define _(n)					\
-	  case BITS (u##n):			\
-	    {					\
-	      u##n * r = random_data;		\
-	      r0 = r[0];			\
-	      random_data = r + 1;		\
-	    }					\
-	  break;
-
-	  _(8);
-	  _(16);
-	  _(32);
-	  _(64);
-
-#undef _
-	}
-
-      /* Add power of 2 sized random number which may be out of range. */
-      v0 += r0 & r_mask;
-
-      /* Twice should be enough to reduce to v_min .. v_max range. */
-      v0 = v0 > v_max ? v0 - v_diff : v0;
-      v0 = v0 > v_max ? v0 - v_diff : v0;
-
-      if (want_sum)
-	sum += v0;
-
-      set_1 (a0, v0, v_min, v_max, n_bits, is_net_byte_order);
-
-      ASSERT (validate_buffer_data (b0, s));
-    }
-
-  if (want_sum)
-    *sum_result = sum;
-}
-
-#define _(i,t)							\
-  clib_mem_unaligned (a##i, t) =				\
-    clib_host_to_net_##t ((clib_net_to_host_mem_##t (a##i) &~ mask)	\
-			  | (v##i << shift))
-
-always_inline void
-setbits_1 (void *a0,
-	   u64 v0,
-	   u64 v_min, u64 v_max,
-	   u32 max_bits, u32 n_bits, u64 mask, u32 shift)
-{
-  ASSERT (v0 >= v_min && v0 <= v_max);
-  if (max_bits == BITS (u8))
-    ((u8 *) a0)[0] = (((u8 *) a0)[0] & ~mask) | (v0 << shift);
-
-  else if (max_bits == BITS (u16))
-    {
-      _(0, u16);
-    }
-  else if (max_bits == BITS (u32))
-    {
-      _(0, u32);
-    }
-  else if (max_bits == BITS (u64))
-    {
-      _(0, u64);
-    }
-}
-
-always_inline void
-setbits_2 (void *a0, void *a1,
-	   u64 v0, u64 v1,
-	   u64 v_min, u64 v_max,
-	   u32 max_bits, u32 n_bits, u64 mask, u32 shift, u32 is_increment)
-{
-  ASSERT (v0 >= v_min && v0 <= v_max);
-  ASSERT (v1 >= v_min && v1 <= v_max + is_increment);
-  if (max_bits == BITS (u8))
-    {
-      ((u8 *) a0)[0] = (((u8 *) a0)[0] & ~mask) | (v0 << shift);
-      ((u8 *) a1)[0] = (((u8 *) a1)[0] & ~mask) | (v1 << shift);
-    }
-
-  else if (max_bits == BITS (u16))
-    {
-      _(0, u16);
-      _(1, u16);
-    }
-  else if (max_bits == BITS (u32))
-    {
-      _(0, u32);
-      _(1, u32);
-    }
-  else if (max_bits == BITS (u64))
-    {
-      _(0, u64);
-      _(1, u64);
-    }
-}
-
-#undef _
-
-static_always_inline void
-do_setbits_fixed (pg_main_t * pg,
-		  pg_stream_t * s,
-		  u32 * buffers,
-		  u32 n_buffers,
-		  u32 max_bits,
-		  u32 n_bits,
-		  u32 byte_offset, u64 v_min, u64 v_max, u64 mask, u32 shift)
-{
-  vlib_main_t *vm = vlib_get_main ();
-
-  while (n_buffers >= 4)
-    {
-      vlib_buffer_t *b0, *b1, *b2, *b3;
-      void *a0, *a1;
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      b1 = vlib_get_buffer (vm, buffers[1]);
-      b2 = vlib_get_buffer (vm, buffers[2]);
-      b3 = vlib_get_buffer (vm, buffers[3]);
-      buffers += 2;
-      n_buffers -= 2;
-
-      a0 = (void *) b0 + byte_offset;
-      a1 = (void *) b1 + byte_offset;
-      CLIB_PREFETCH ((void *) b2 + byte_offset, sizeof (v_min), WRITE);
-      CLIB_PREFETCH ((void *) b3 + byte_offset, sizeof (v_min), WRITE);
-
-      setbits_2 (a0, a1,
-		 v_min, v_min, v_min, v_max, max_bits, n_bits, mask, shift,
-		 /* is_increment */ 0);
-
-      ASSERT (validate_buffer_data (b0, s));
-      ASSERT (validate_buffer_data (b1, s));
-    }
-
-  while (n_buffers > 0)
-    {
-      vlib_buffer_t *b0;
-      void *a0;
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      buffers += 1;
-      n_buffers -= 1;
-
-      a0 = (void *) b0 + byte_offset;
-
-      setbits_1 (a0, v_min, v_min, v_max, max_bits, n_bits, mask, shift);
-      ASSERT (validate_buffer_data (b0, s));
-    }
-}
-
-static_always_inline u64
-do_setbits_increment (pg_main_t * pg,
-		      pg_stream_t * s,
-		      u32 * buffers,
-		      u32 n_buffers,
-		      u32 max_bits,
-		      u32 n_bits,
-		      u32 byte_offset,
-		      u64 v_min, u64 v_max, u64 v, u64 mask, u32 shift)
-{
-  vlib_main_t *vm = vlib_get_main ();
-
-  ASSERT (v >= v_min && v <= v_max);
-
-  while (n_buffers >= 4)
-    {
-      vlib_buffer_t *b0, *b1, *b2, *b3;
-      void *a0, *a1;
-      u64 v_old;
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      b1 = vlib_get_buffer (vm, buffers[1]);
-      b2 = vlib_get_buffer (vm, buffers[2]);
-      b3 = vlib_get_buffer (vm, buffers[3]);
-      buffers += 2;
-      n_buffers -= 2;
-
-      a0 = (void *) b0 + byte_offset;
-      a1 = (void *) b1 + byte_offset;
-      CLIB_PREFETCH ((void *) b2 + byte_offset, sizeof (v_min), WRITE);
-      CLIB_PREFETCH ((void *) b3 + byte_offset, sizeof (v_min), WRITE);
-
-      v_old = v;
-      v = v_old + 2;
-      v = v > v_max ? v_min : v;
-      setbits_2 (a0, a1,
-		 v_old + 0, v_old + 1,
-		 v_min, v_max, max_bits, n_bits, mask, shift,
-		 /* is_increment */ 1);
-
-      if (PREDICT_FALSE (v_old + 1 > v_max))
-	{
-	  v = v_old;
-	  setbits_1 (a0, v + 0, v_min, v_max, max_bits, n_bits, mask, shift);
-	  v += 1;
-
-	  v = v > v_max ? v_min : v;
-	  setbits_1 (a1, v + 0, v_min, v_max, max_bits, n_bits, mask, shift);
-	  v += 1;
-	}
-      ASSERT (validate_buffer_data (b0, s));
-      ASSERT (validate_buffer_data (b1, s));
-    }
-
-  while (n_buffers > 0)
-    {
-      vlib_buffer_t *b0;
-      void *a0;
-      u64 v_old;
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      buffers += 1;
-      n_buffers -= 1;
-
-      a0 = (void *) b0 + byte_offset;
-
-      v_old = v;
-      v = v_old + 1;
-      v = v > v_max ? v_min : v;
-
-      ASSERT (v_old >= v_min && v_old <= v_max);
-      setbits_1 (a0, v_old, v_min, v_max, max_bits, n_bits, mask, shift);
-
-      ASSERT (validate_buffer_data (b0, s));
-    }
-
-  return v;
-}
-
-static_always_inline void
-do_setbits_random (pg_main_t * pg,
-		   pg_stream_t * s,
-		   u32 * buffers,
-		   u32 n_buffers,
-		   u32 max_bits,
-		   u32 n_bits,
-		   u32 byte_offset, u64 v_min, u64 v_max, u64 mask, u32 shift)
-{
-  vlib_main_t *vm = vlib_get_main ();
-  u64 v_diff = v_max - v_min + 1;
-  u64 r_mask = max_pow2 (v_diff) - 1;
-  u64 v0, v1;
-  void *random_data;
-
-  random_data = clib_random_buffer_get_data
-    (&vm->random_buffer, n_buffers * max_bits / BITS (u8));
-  v0 = v1 = v_min;
-
-  while (n_buffers >= 4)
-    {
-      vlib_buffer_t *b0, *b1, *b2, *b3;
-      void *a0, *a1;
-      u64 r0 = 0, r1 = 0;	/* warnings be gone */
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      b1 = vlib_get_buffer (vm, buffers[1]);
-      b2 = vlib_get_buffer (vm, buffers[2]);
-      b3 = vlib_get_buffer (vm, buffers[3]);
-      buffers += 2;
-      n_buffers -= 2;
-
-      a0 = (void *) b0 + byte_offset;
-      a1 = (void *) b1 + byte_offset;
-      CLIB_PREFETCH ((void *) b2 + byte_offset, sizeof (v_min), WRITE);
-      CLIB_PREFETCH ((void *) b3 + byte_offset, sizeof (v_min), WRITE);
-
-      switch (max_bits)
-	{
-#define _(n)					\
-	  case BITS (u##n):			\
-	    {					\
-	      u##n * r = random_data;		\
-	      r0 = r[0];			\
-	      r1 = r[1];			\
-	      random_data = r + 2;		\
-	    }					\
-	  break;
-
-	  _(8);
-	  _(16);
-	  _(32);
-	  _(64);
-
-#undef _
-	}
-
-      /* Add power of 2 sized random number which may be out of range. */
-      v0 += r0 & r_mask;
-      v1 += r1 & r_mask;
-
-      /* Twice should be enough to reduce to v_min .. v_max range. */
-      v0 = v0 > v_max ? v0 - v_diff : v0;
-      v1 = v1 > v_max ? v1 - v_diff : v1;
-      v0 = v0 > v_max ? v0 - v_diff : v0;
-      v1 = v1 > v_max ? v1 - v_diff : v1;
-
-      setbits_2 (a0, a1, v0, v1, v_min, v_max, max_bits, n_bits, mask, shift,
-		 /* is_increment */ 0);
-
-      ASSERT (validate_buffer_data (b0, s));
-      ASSERT (validate_buffer_data (b1, s));
-    }
-
-  while (n_buffers > 0)
-    {
-      vlib_buffer_t *b0;
-      void *a0;
-      u64 r0 = 0;		/* warnings be gone */
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      buffers += 1;
-      n_buffers -= 1;
-
-      a0 = (void *) b0 + byte_offset;
-
-      switch (max_bits)
-	{
-#define _(n)					\
-	  case BITS (u##n):			\
-	    {					\
-	      u##n * r = random_data;		\
-	      r0 = r[0];			\
-	      random_data = r + 1;		\
-	    }					\
-	  break;
-
-	  _(8);
-	  _(16);
-	  _(32);
-	  _(64);
-
-#undef _
-	}
-
-      /* Add power of 2 sized random number which may be out of range. */
-      v0 += r0 & r_mask;
-
-      /* Twice should be enough to reduce to v_min .. v_max range. */
-      v0 = v0 > v_max ? v0 - v_diff : v0;
-      v0 = v0 > v_max ? v0 - v_diff : v0;
-
-      setbits_1 (a0, v0, v_min, v_max, max_bits, n_bits, mask, shift);
-
-      ASSERT (validate_buffer_data (b0, s));
-    }
-}
-
-static u64
-do_it (pg_main_t * pg,
-       pg_stream_t * s,
-       u32 * buffers,
-       u32 n_buffers,
-       u32 lo_bit, u32 hi_bit,
-       u64 v_min, u64 v_max, u64 v, pg_edit_type_t edit_type)
-{
-  u32 max_bits, l0, l1, h1, start_bit;
-
-  if (v_min == v_max)
-    edit_type = PG_EDIT_FIXED;
-
-  l0 = lo_bit / BITS (u8);
-  l1 = lo_bit % BITS (u8);
-  h1 = hi_bit % BITS (u8);
-
-  start_bit = l0 * BITS (u8);
-
-  max_bits = hi_bit - start_bit;
-  ASSERT (max_bits <= 64);
-
-#define _(n)						\
-  case (n):						\
-    if (edit_type == PG_EDIT_INCREMENT)			\
-      v = do_set_increment (pg, s, buffers, n_buffers,	\
-			    BITS (u##n),		\
-			    l0,				\
-			    /* is_net_byte_order */ 1,	\
-			    /* want sum */ 0, 0,	\
-			    v_min, v_max,		\
-			    v);				\
-    else if (edit_type == PG_EDIT_RANDOM)		\
-      do_set_random (pg, s, buffers, n_buffers,		\
-		     BITS (u##n),			\
-		     l0,				\
-		     /* is_net_byte_order */ 1,		\
-		     /* want sum */ 0, 0,		\
-		     v_min, v_max);			\
-    else /* edit_type == PG_EDIT_FIXED */		\
-      do_set_fixed (pg, s, buffers, n_buffers,		\
-		    BITS (u##n),			\
-		    l0,					\
-		    /* is_net_byte_order */ 1,		\
-		    v_min, v_max);			\
-  goto done;
-
-  if (l1 == 0 && h1 == 0)
-    {
-      switch (max_bits)
-	{
-	  _(8);
-	  _(16);
-	  _(32);
-	  _(64);
-	}
-    }
-
-#undef _
-
-  {
-    u64 mask;
-    u32 shift = l1;
-    u32 n_bits = max_bits;
-
-    max_bits = clib_max (max_pow2 (n_bits), 8);
-
-    mask = ((u64) 1 << (u64) n_bits) - 1;
-    mask &= ~(((u64) 1 << (u64) shift) - 1);
-
-    mask <<= max_bits - n_bits;
-    shift += max_bits - n_bits;
-
-    switch (max_bits)
-      {
-#define _(n)								\
-	case (n):							\
-	  if (edit_type == PG_EDIT_INCREMENT)				\
-	    v = do_setbits_increment (pg, s, buffers, n_buffers,	\
-				      BITS (u##n), n_bits,		\
-				      l0, v_min, v_max, v,		\
-				      mask, shift);			\
-	  else if (edit_type == PG_EDIT_RANDOM)				\
-	    do_setbits_random (pg, s, buffers, n_buffers,		\
-			       BITS (u##n), n_bits,			\
-			       l0, v_min, v_max,			\
-			       mask, shift);				\
-	  else /* edit_type == PG_EDIT_FIXED */				\
-	    do_setbits_fixed (pg, s, buffers, n_buffers,		\
-			      BITS (u##n), n_bits,			\
-			      l0, v_min, v_max,				\
-			      mask, shift);				\
-	goto done;
-
-	_(8);
-	_(16);
-	_(32);
-	_(64);
-
-#undef _
-      }
-  }
-
-done:
-  return v;
-}
-
-static void
-pg_generate_set_lengths (pg_main_t * pg,
-			 pg_stream_t * s, u32 * buffers, u32 n_buffers)
-{
-  u64 v_min, v_max, length_sum;
-  pg_edit_type_t edit_type;
-
-  v_min = s->min_packet_bytes;
-  v_max = s->max_packet_bytes;
-  edit_type = s->packet_size_edit_type;
-
-  if (edit_type == PG_EDIT_INCREMENT)
-    s->last_increment_packet_size
-      = do_set_increment (pg, s, buffers, n_buffers,
-			  8 * STRUCT_SIZE_OF (vlib_buffer_t, current_length),
-			  STRUCT_OFFSET_OF (vlib_buffer_t, current_length),
-			  /* is_net_byte_order */ 0,
-			  /* want sum */ 1, &length_sum,
-			  v_min, v_max, s->last_increment_packet_size);
-
-  else if (edit_type == PG_EDIT_RANDOM)
-    do_set_random (pg, s, buffers, n_buffers,
-		   8 * STRUCT_SIZE_OF (vlib_buffer_t, current_length),
-		   STRUCT_OFFSET_OF (vlib_buffer_t, current_length),
-		   /* is_net_byte_order */ 0,
-		   /* want sum */ 1, &length_sum,
-		   v_min, v_max);
-
-  else				/* edit_type == PG_EDIT_FIXED */
-    {
-      do_set_fixed (pg, s, buffers, n_buffers,
-		    8 * STRUCT_SIZE_OF (vlib_buffer_t, current_length),
-		    STRUCT_OFFSET_OF (vlib_buffer_t, current_length),
-		    /* is_net_byte_order */ 0,
-		    v_min, v_max);
-      length_sum = v_min * n_buffers;
-    }
-
-  {
-    vnet_main_t *vnm = vnet_get_main ();
-    vnet_interface_main_t *im = &vnm->interface_main;
-    vnet_sw_interface_t *si =
-      vnet_get_sw_interface (vnm, s->sw_if_index[VLIB_RX]);
-
-    vlib_increment_combined_counter (im->combined_sw_if_counters
-				     + VNET_INTERFACE_COUNTER_RX,
-				     os_get_cpu_number (),
-				     si->sw_if_index, n_buffers, length_sum);
-  }
-
-}
-
-static void
-pg_generate_fix_multi_buffer_lengths (pg_main_t * pg,
-				      pg_stream_t * s,
-				      u32 * buffers, u32 n_buffers)
-{
-  vlib_main_t *vm = vlib_get_main ();
-  pg_buffer_index_t *pbi;
-  uword n_bytes_left;
-  static u32 *unused_buffers = 0;
-
-  while (n_buffers > 0)
-    {
-      vlib_buffer_t *b;
-      u32 bi;
-
-      bi = buffers[0];
-      b = vlib_get_buffer (vm, bi);
-
-      /* Current length here is length of whole packet. */
-      n_bytes_left = b->current_length;
-
-      pbi = s->buffer_indices;
-      while (1)
-	{
-	  uword n = clib_min (n_bytes_left, s->buffer_bytes);
-
-	  b->current_length = n;
-	  n_bytes_left -= n;
-	  if (n_bytes_left > 0)
-	    b->flags |= VLIB_BUFFER_NEXT_PRESENT;
-	  else
-	    b->flags &= ~VLIB_BUFFER_NEXT_PRESENT;
-
-	  /* Return unused buffers to fifos. */
-	  if (n == 0)
-	    vec_add1 (unused_buffers, bi);
-
-	  pbi++;
-	  if (pbi >= vec_end (s->buffer_indices))
-	    break;
-
-	  bi = b->next_buffer;
-	  b = vlib_get_buffer (vm, bi);
-	}
-      ASSERT (n_bytes_left == 0);
-
-      buffers += 1;
-      n_buffers -= 1;
-    }
-
-  if (vec_len (unused_buffers) > 0)
-    {
-      vlib_buffer_free_no_next (vm, unused_buffers, vec_len (unused_buffers));
-      _vec_len (unused_buffers) = 0;
-    }
-}
-
-static void
-pg_generate_edit (pg_main_t * pg,
-		  pg_stream_t * s, u32 * buffers, u32 n_buffers)
-{
-  pg_edit_t *e;
-
-  vec_foreach (e, s->non_fixed_edits)
-  {
-    switch (e->type)
-      {
-      case PG_EDIT_RANDOM:
-      case PG_EDIT_INCREMENT:
-	{
-	  u32 lo_bit, hi_bit;
-	  u64 v_min, v_max;
-
-	  v_min = pg_edit_get_value (e, PG_EDIT_LO);
-	  v_max = pg_edit_get_value (e, PG_EDIT_HI);
-
-	  hi_bit = (BITS (u8) * STRUCT_OFFSET_OF (vlib_buffer_t, data)
-		    + BITS (u8) + e->lsb_bit_offset);
-	  lo_bit = hi_bit - e->n_bits;
-
-	  e->last_increment_value
-	    = do_it (pg, s, buffers, n_buffers, lo_bit, hi_bit, v_min, v_max,
-		     e->last_increment_value, e->type);
-	}
-	break;
-
-      case PG_EDIT_UNSPECIFIED:
-	break;
-
-      default:
-	/* Should not be any fixed edits left. */
-	ASSERT (0);
-	break;
-      }
-  }
-
-  /* Call any edit functions to e.g. completely IP lengths, checksums, ... */
-  {
-    int i;
-    for (i = vec_len (s->edit_groups) - 1; i >= 0; i--)
-      {
-	pg_edit_group_t *g = s->edit_groups + i;
-	if (g->edit_function)
-	  g->edit_function (pg, s, g, buffers, n_buffers);
-      }
-  }
-}
-
-static void
-pg_set_next_buffer_pointers (pg_main_t * pg,
-			     pg_stream_t * s,
-			     u32 * buffers, u32 * next_buffers, u32 n_buffers)
-{
-  vlib_main_t *vm = vlib_get_main ();
-
-  while (n_buffers >= 4)
-    {
-      u32 ni0, ni1;
-      vlib_buffer_t *b0, *b1;
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      b1 = vlib_get_buffer (vm, buffers[1]);
-      ni0 = next_buffers[0];
-      ni1 = next_buffers[1];
-
-      vlib_prefetch_buffer_with_index (vm, buffers[2], WRITE);
-      vlib_prefetch_buffer_with_index (vm, buffers[3], WRITE);
-
-      b0->flags |= VLIB_BUFFER_NEXT_PRESENT;
-      b1->flags |= VLIB_BUFFER_NEXT_PRESENT;
-      b0->next_buffer = ni0;
-      b1->next_buffer = ni1;
-
-      buffers += 2;
-      next_buffers += 2;
-      n_buffers -= 2;
-    }
-
-  while (n_buffers > 0)
-    {
-      u32 ni0;
-      vlib_buffer_t *b0;
-
-      b0 = vlib_get_buffer (vm, buffers[0]);
-      ni0 = next_buffers[0];
-      buffers += 1;
-      next_buffers += 1;
-      n_buffers -= 1;
-
-      b0->flags |= VLIB_BUFFER_NEXT_PRESENT;
-      b0->next_buffer = ni0;
-    }
-}
-
-static_always_inline void
-init_replay_buffers_inline (vlib_main_t * vm,
-			    pg_stream_t * s,
-			    u32 * buffers,
-			    u32 n_buffers, u32 data_offset, u32 n_data)
-{
-  u32 n_left, *b, i, l;
-
-  n_left = n_buffers;
-  b = buffers;
-  i = s->current_replay_packet_index;
-  l = vec_len (s->replay_packet_templates);
-
-  while (n_left >= 1)
-    {
-      u32 bi0, n0;
-      vlib_buffer_t *b0;
-      u8 *d0;
-
-      bi0 = b[0];
-      b += 1;
-      n_left -= 1;
-
-      b0 = vlib_get_buffer (vm, bi0);
-
-      vnet_buffer (b0)->sw_if_index[VLIB_RX] = s->sw_if_index[VLIB_RX];
-      /* was s->sw_if_index[VLIB_TX]; */
-      vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
-
-      d0 = vec_elt (s->replay_packet_templates, i);
-
-      n0 = n_data;
-      if (data_offset + n_data >= vec_len (d0))
-	n0 = vec_len (d0) > data_offset ? vec_len (d0) - data_offset : 0;
-
-      b0->current_length = n0;
-
-      clib_memcpy (b0->data, d0 + data_offset, n0);
-      i = i + 1 == l ? 0 : i + 1;
-    }
-}
-
-static_always_inline void
-init_buffers_inline (vlib_main_t * vm,
-		     pg_stream_t * s,
-		     u32 * buffers,
-		     u32 n_buffers, u32 data_offset, u32 n_data, u32 set_data)
-{
-  u32 n_left, *b;
-  u8 *data, *mask;
-
-  if (vec_len (s->replay_packet_templates) > 0)
-    return init_replay_buffers_inline (vm, s, buffers, n_buffers, data_offset,
-				       n_data);
-
-  data = s->fixed_packet_data + data_offset;
-  mask = s->fixed_packet_data_mask + data_offset;
-  if (data + n_data >= vec_end (s->fixed_packet_data))
-    n_data = (data < vec_end (s->fixed_packet_data)
-	      ? vec_end (s->fixed_packet_data) - data : 0);
-  if (n_data > 0)
-    {
-      ASSERT (data + n_data <= vec_end (s->fixed_packet_data));
-      ASSERT (mask + n_data <= vec_end (s->fixed_packet_data_mask));
-    }
-
-  n_left = n_buffers;
-  b = buffers;
-
-  while (n_left >= 4)
-    {
-      u32 bi0, bi1;
-      vlib_buffer_t *b0, *b1;
-
-      /* Prefetch next iteration. */
-      vlib_prefetch_buffer_with_index (vm, b[2], STORE);
-      vlib_prefetch_buffer_with_index (vm, b[3], STORE);
-
-      bi0 = b[0];
-      bi1 = b[1];
-      b += 2;
-      n_left -= 2;
-
-      b0 = vlib_get_buffer (vm, bi0);
-      b1 = vlib_get_buffer (vm, bi1);
-
-      vnet_buffer (b0)->sw_if_index[VLIB_RX] =
-	vnet_buffer (b1)->sw_if_index[VLIB_RX] = s->sw_if_index[VLIB_RX];
-
-      vnet_buffer (b0)->sw_if_index[VLIB_TX] =
-	vnet_buffer (b1)->sw_if_index[VLIB_TX] = (u32) ~ 0;
-
-      if (set_data)
-	{
-	  clib_memcpy (b0->data, data, n_data);
-	  clib_memcpy (b1->data, data, n_data);
-	}
-      else
-	{
-	  ASSERT (validate_buffer_data2 (b0, s, data_offset, n_data));
-	  ASSERT (validate_buffer_data2 (b1, s, data_offset, n_data));
-	}
-    }
-
-  while (n_left >= 1)
-    {
-      u32 bi0;
-      vlib_buffer_t *b0;
-
-      bi0 = b[0];
-      b += 1;
-      n_left -= 1;
-
-      b0 = vlib_get_buffer (vm, bi0);
-      vnet_buffer (b0)->sw_if_index[VLIB_RX] = s->sw_if_index[VLIB_RX];
-      /* s->sw_if_index[VLIB_TX]; */
-      vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
-
-      if (set_data)
-	clib_memcpy (b0->data, data, n_data);
-      else
-	ASSERT (validate_buffer_data2 (b0, s, data_offset, n_data));
-    }
-}
-
-static void
-pg_buffer_init (vlib_main_t * vm,
-		vlib_buffer_free_list_t * fl, u32 * buffers, u32 n_buffers)
-{
-  pg_main_t *pg = &pg_main;
-  pg_stream_t *s;
-  uword bi, si;
-
-  si = fl->buffer_init_function_opaque & pow2_mask (24);
-  bi = fl->buffer_init_function_opaque >> 24;
-
-  s = pool_elt_at_index (pg->streams, si);
-
-  init_buffers_inline (vm, s, buffers, n_buffers,
-		       /* data_offset */ bi * s->buffer_bytes,
-		       /* n_data */ s->buffer_bytes,
-		       /* set_data */ 1);
-}
-
-static u32
-pg_stream_fill_helper (pg_main_t * pg,
-		       pg_stream_t * s,
-		       pg_buffer_index_t * bi,
-		       u32 * buffers, u32 * next_buffers, u32 n_alloc)
-{
-  vlib_main_t *vm = vlib_get_main ();
-  vlib_buffer_free_list_t *f;
-  uword is_start_of_packet = bi == s->buffer_indices;
-  u32 n_allocated;
-
-  f = vlib_buffer_get_free_list (vm, bi->free_list_index);
-
-  /*
-   * Historically, the pg maintained its own free lists and
-   * device drivers tx paths would return pkts. With the DPDK,
-   * that doesn't happen.
-   */
-  if (DPDK == 0 && !(s->flags & PG_STREAM_FLAGS_DISABLE_BUFFER_RECYCLE))
-    f->buffer_init_function = pg_buffer_init;
-  f->buffer_init_function_opaque =
-    (s - pg->streams) | ((bi - s->buffer_indices) << 24);
-
-  if (is_start_of_packet)
-    vnet_buffer (&f->buffer_init_template)->sw_if_index[VLIB_RX]
-      = vnet_main.local_interface_sw_if_index;
-
-  n_allocated = vlib_buffer_alloc_from_free_list (vm,
-						  buffers,
-						  n_alloc,
-						  bi->free_list_index);
-  if (n_allocated == 0)
-    return 0;
-
-  /*
-   * We can't assume we got all the buffers we asked for...
-   * This never worked until recently.
-   */
-  n_alloc = n_allocated;
-
-  /* Reinitialize buffers */
-  if (DPDK == 0 || CLIB_DEBUG > 0
-      || (s->flags & PG_STREAM_FLAGS_DISABLE_BUFFER_RECYCLE))
-    init_buffers_inline
-      (vm, s,
-       buffers,
-       n_alloc, (bi - s->buffer_indices) * s->buffer_bytes /* data offset */ ,
-       s->buffer_bytes,
-       /* set_data */
-       DPDK == 1 || (s->flags & PG_STREAM_FLAGS_DISABLE_BUFFER_RECYCLE) != 0);
-
-  if (next_buffers)
-    pg_set_next_buffer_pointers (pg, s, buffers, next_buffers, n_alloc);
-
-  if (is_start_of_packet)
-    {
-      if (vec_len (s->replay_packet_templates) > 0)
-	{
-	  vnet_main_t *vnm = vnet_get_main ();
-	  vnet_interface_main_t *im = &vnm->interface_main;
-	  vnet_sw_interface_t *si =
-	    vnet_get_sw_interface (vnm, s->sw_if_index[VLIB_RX]);
-	  u32 l = 0;
-	  u32 i;
-	  for (i = 0; i < n_alloc; i++)
-	    l += vlib_buffer_index_length_in_chain (vm, buffers[i]);
-	  vlib_increment_combined_counter (im->combined_sw_if_counters
-					   + VNET_INTERFACE_COUNTER_RX,
-					   os_get_cpu_number (),
-					   si->sw_if_index, n_alloc, l);
-	  s->current_replay_packet_index += n_alloc;
-	  s->current_replay_packet_index %=
-	    vec_len (s->replay_packet_templates);
-	}
-      else
-	{
-	  pg_generate_set_lengths (pg, s, buffers, n_alloc);
-	  if (vec_len (s->buffer_indices) > 1)
-	    pg_generate_fix_multi_buffer_lengths (pg, s, buffers, n_alloc);
-
-	  pg_generate_edit (pg, s, buffers, n_alloc);
-	}
-    }
-
-  return n_alloc;
-}
-
-static u32
-pg_stream_fill (pg_main_t * pg, pg_stream_t * s, u32 n_buffers)
-{
-  pg_buffer_index_t *bi;
-  word i, n_in_fifo, n_alloc, n_free, n_added;
-  u32 *tail, *start, *end, *last_tail, *last_start;
-
-  bi = s->buffer_indices;
-
-  n_in_fifo = clib_fifo_elts (bi->buffer_fifo);
-  if (n_in_fifo >= n_buffers)
-    return n_in_fifo;
-
-  n_alloc = n_buffers - n_in_fifo;
-
-  /* Round up, but never generate more than limit. */
-  n_alloc = clib_max (VLIB_FRAME_SIZE, n_alloc);
-
-  if (s->n_packets_limit > 0
-      && s->n_packets_generated + n_in_fifo + n_alloc >= s->n_packets_limit)
-    {
-      n_alloc = s->n_packets_limit - s->n_packets_generated - n_in_fifo;
-      if (n_alloc < 0)
-	n_alloc = 0;
-    }
-
-  /* All buffer fifos should have the same size. */
-  if (CLIB_DEBUG > 0)
-    {
-      uword l = ~0, e;
-      vec_foreach (bi, s->buffer_indices)
-      {
-	e = clib_fifo_elts (bi->buffer_fifo);
-	if (bi == s->buffer_indices)
-	  l = e;
-	ASSERT (l == e);
-      }
-    }
-
-  last_tail = last_start = 0;
-  n_added = n_alloc;
-
-  for (i = vec_len (s->buffer_indices) - 1; i >= 0; i--)
-    {
-      bi = vec_elt_at_index (s->buffer_indices, i);
-
-      n_free = clib_fifo_free_elts (bi->buffer_fifo);
-      if (n_free < n_alloc)
-	clib_fifo_resize (bi->buffer_fifo, n_alloc - n_free);
-
-      tail = clib_fifo_advance_tail (bi->buffer_fifo, n_alloc);
-      start = bi->buffer_fifo;
-      end = clib_fifo_end (bi->buffer_fifo);
-
-      if (tail + n_alloc <= end)
-	{
-	  n_added =
-	    pg_stream_fill_helper (pg, s, bi, tail, last_tail, n_alloc);
-	}
-      else
-	{
-	  u32 n = clib_min (end - tail, n_alloc);
-	  n_added = pg_stream_fill_helper (pg, s, bi, tail, last_tail, n);
-
-	  if (n_added == n && n_alloc > n_added)
-	    {
-	      n_added += pg_stream_fill_helper
-		(pg, s, bi, start, last_start, n_alloc - n_added);
-	    }
-	}
-
-      if (PREDICT_FALSE (n_added < n_alloc))
-	tail = clib_fifo_advance_tail (bi->buffer_fifo, n_added - n_alloc);
-
-      last_tail = tail;
-      last_start = start;
-
-      /* Verify that pkts in the fifo are properly allocated */
-    }
-
-  return n_in_fifo + n_added;
-}
-
-typedef struct
-{
-  u32 stream_index;
-
-  u32 packet_length;
-
-  /* Use pre data for packet data. */
-  vlib_buffer_t buffer;
-} pg_input_trace_t;
-
-static u8 *
-format_pg_input_trace (u8 * s, va_list * va)
-{
-  vlib_main_t *vm = va_arg (*va, vlib_main_t *);
-  CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *);
-  pg_input_trace_t *t = va_arg (*va, pg_input_trace_t *);
-  pg_main_t *pg = &pg_main;
-  pg_stream_t *stream;
-  vlib_node_t *n;
-  uword indent = format_get_indent (s);
-
-  stream = 0;
-  if (!pool_is_free_index (pg->streams, t->stream_index))
-    stream = pool_elt_at_index (pg->streams, t->stream_index);
-
-  if (stream)
-    s = format (s, "stream %v", pg->streams[t->stream_index].name);
-  else
-    s = format (s, "stream %d", t->stream_index);
-
-  s = format (s, ", %d bytes", t->packet_length);
-
-  s = format (s, "\n%U%U",
-	      format_white_space, indent, format_vlib_buffer, &t->buffer);
-
-  s = format (s, "\n%U", format_white_space, indent);
-
-  n = 0;
-  if (stream)
-    n = vlib_get_node (vm, stream->node_index);
-
-  if (n && n->format_buffer)
-    s = format (s, "%U", n->format_buffer,
-		t->buffer.pre_data, sizeof (t->buffer.pre_data));
-  else
-    s = format (s, "%U",
-		format_hex_bytes, t->buffer.pre_data,
-		ARRAY_LEN (t->buffer.pre_data));
-  return s;
-}
-
-static void
-pg_input_trace (pg_main_t * pg,
-		vlib_node_runtime_t * node,
-		pg_stream_t * s, u32 * buffers, u32 n_buffers)
-{
-  vlib_main_t *vm = vlib_get_main ();
-  u32 *b, n_left, stream_index, next_index;
-
-  n_left = n_buffers;
-  b = buffers;
-  stream_index = s - pg->streams;
-  next_index = s->next_index;
-
-  while (n_left >= 2)
-    {
-      u32 bi0, bi1;
-      vlib_buffer_t *b0, *b1;
-      pg_input_trace_t *t0, *t1;
-
-      bi0 = b[0];
-      bi1 = b[1];
-      b += 2;
-      n_left -= 2;
-
-      b0 = vlib_get_buffer (vm, bi0);
-      b1 = vlib_get_buffer (vm, bi1);
-
-      vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 1);
-      vlib_trace_buffer (vm, node, next_index, b1, /* follow_chain */ 1);
-
-      t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0]));
-      t1 = vlib_add_trace (vm, node, b1, sizeof (t1[0]));
-
-      t0->stream_index = stream_index;
-      t1->stream_index = stream_index;
-
-      t0->packet_length = vlib_buffer_length_in_chain (vm, b0);
-      t1->packet_length = vlib_buffer_length_in_chain (vm, b1);
-
-      clib_memcpy (&t0->buffer, b0, sizeof (b0[0]) - sizeof (b0->pre_data));
-      clib_memcpy (&t1->buffer, b1, sizeof (b1[0]) - sizeof (b1->pre_data));
-
-      clib_memcpy (t0->buffer.pre_data, b0->data,
-		   sizeof (t0->buffer.pre_data));
-      clib_memcpy (t1->buffer.pre_data, b1->data,
-		   sizeof (t1->buffer.pre_data));
-    }
-
-  while (n_left >= 1)
-    {
-      u32 bi0;
-      vlib_buffer_t *b0;
-      pg_input_trace_t *t0;
-
-      bi0 = b[0];
-      b += 1;
-      n_left -= 1;
-
-      b0 = vlib_get_buffer (vm, bi0);
-
-      vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 1);
-      t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0]));
-
-      t0->stream_index = stream_index;
-      t0->packet_length = vlib_buffer_length_in_chain (vm, b0);
-      clib_memcpy (&t0->buffer, b0, sizeof (b0[0]) - sizeof (b0->pre_data));
-      clib_memcpy (t0->buffer.pre_data, b0->data,
-		   sizeof (t0->buffer.pre_data));
-    }
-}
-
-static uword
-pg_generate_packets (vlib_node_runtime_t * node,
-		     pg_main_t * pg,
-		     pg_stream_t * s, uword n_packets_to_generate)
-{
-  vlib_main_t *vm = vlib_get_main ();
-  u32 *to_next, n_this_frame, n_left, n_trace, n_packets_in_fifo;
-  uword n_packets_generated;
-  pg_buffer_index_t *bi, *bi0;
-  u32 next_index = s->next_index;
-  vnet_feature_main_t *fm = &feature_main;
-  vnet_feature_config_main_t *cm;
-  u8 feature_arc_index = fm->device_input_feature_arc_index;
-  cm = &fm->feature_config_mains[feature_arc_index];
-  u32 current_config_index = ~(u32) 0;
-  int i;
-
-  bi0 = s->buffer_indices;
-
-  n_packets_in_fifo = pg_stream_fill (pg, s, n_packets_to_generate);
-  n_packets_to_generate = clib_min (n_packets_in_fifo, n_packets_to_generate);
-  n_packets_generated = 0;
-
-  if (PREDICT_FALSE
-      (vnet_have_features (feature_arc_index, s->sw_if_index[VLIB_RX])))
-    {
-      current_config_index =
-	vec_elt (cm->config_index_by_sw_if_index, s->sw_if_index[VLIB_RX]);
-      vnet_get_config_data (&cm->config_main, &current_config_index,
-			    &next_index, 0);
-    }
-
-  while (n_packets_to_generate > 0)
-    {
-      u32 *head, *start, *end;
-
-      vlib_get_next_frame (vm, node, next_index, to_next, n_left);
-
-      n_this_frame = n_packets_to_generate;
-      if (n_this_frame > n_left)
-	n_this_frame = n_left;
-
-      start = bi0->buffer_fifo;
-      end = clib_fifo_end (bi0->buffer_fifo);
-      head = clib_fifo_head (bi0->buffer_fifo);
-
-      if (head + n_this_frame <= end)
-	vlib_copy_buffers (to_next, head, n_this_frame);
-      else
-	{
-	  u32 n = end - head;
-	  vlib_copy_buffers (to_next + 0, head, n);
-	  vlib_copy_buffers (to_next + n, start, n_this_frame - n);
-	}
-
-      vec_foreach (bi, s->buffer_indices)
-	clib_fifo_advance_head (bi->buffer_fifo, n_this_frame);
-
-      if (current_config_index != ~(u32) 0)
-	for (i = 0; i < n_this_frame; i++)
-	  {
-	    vlib_buffer_t *b;
-	    b = vlib_get_buffer (vm, to_next[i]);
-	    vnet_buffer (b)->device_input_feat.saved_next_index =
-	      s->next_index;
-	    vnet_buffer (b)->device_input_feat.buffer_advance = 0;
-	    b->current_config_index = current_config_index;
-	    b->feature_arc_index = feature_arc_index;
-	  }
-
-      n_trace = vlib_get_trace_count (vm, node);
-      if (n_trace > 0)
-	{
-	  u32 n = clib_min (n_trace, n_this_frame);
-	  pg_input_trace (pg, node, s, to_next, n);
-	  vlib_set_trace_count (vm, node, n_trace - n);
-	}
-      n_packets_to_generate -= n_this_frame;
-      n_packets_generated += n_this_frame;
-      n_left -= n_this_frame;
-      vlib_put_next_frame (vm, node, next_index, n_left);
-    }
-
-  return n_packets_generated;
-}
-
-static uword
-pg_input_stream (vlib_node_runtime_t * node, pg_main_t * pg, pg_stream_t * s)
-{
-  vlib_main_t *vm = vlib_get_main ();
-  uword n_packets;
-  f64 time_now, dt;
-
-  if (s->n_packets_limit > 0 && s->n_packets_generated >= s->n_packets_limit)
-    {
-      pg_stream_enable_disable (pg, s, /* want_enabled */ 0);
-      return 0;
-    }
-
-  /* Apply rate limit. */
-  time_now = vlib_time_now (vm);
-  if (s->time_last_generate == 0)
-    s->time_last_generate = time_now;
-
-  dt = time_now - s->time_last_generate;
-  s->time_last_generate = time_now;
-
-  n_packets = VLIB_FRAME_SIZE;
-  if (s->rate_packets_per_second > 0)
-    {
-      s->packet_accumulator += dt * s->rate_packets_per_second;
-      n_packets = s->packet_accumulator;
-
-      /* Never allow accumulator to grow if we get behind. */
-      s->packet_accumulator -= n_packets;
-    }
-
-  /* Apply fixed limit. */
-  if (s->n_packets_limit > 0
-      && s->n_packets_generated + n_packets > s->n_packets_limit)
-    n_packets = s->n_packets_limit - s->n_packets_generated;
-
-  /* Generate up to one frame's worth of packets. */
-  if (n_packets > VLIB_FRAME_SIZE)
-    n_packets = VLIB_FRAME_SIZE;
-
-  if (n_packets > 0)
-    n_packets = pg_generate_packets (node, pg, s, n_packets);
-
-  s->n_packets_generated += n_packets;
-
-  return n_packets;
-}
-
-uword
-pg_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
-  uword i;
-  pg_main_t *pg = &pg_main;
-  uword n_packets = 0;
-  u32 worker_index = 0;
-
-  if (vlib_num_workers ())
-    worker_index = vlib_get_current_worker_index ();
-
-  /* *INDENT-OFF* */
-  clib_bitmap_foreach (i, pg->enabled_streams[worker_index], ({
-    pg_stream_t *s = vec_elt_at_index (pg->streams, i);
-    n_packets += pg_input_stream (node, pg, s);
-  }));
-  /* *INDENT-ON* */
-
-  return n_packets;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (pg_input_node) = {
-  .function = pg_input,
-  .name = "pg-input",
-  .sibling_of = "device-input",
-  .type = VLIB_NODE_TYPE_INPUT,
-
-  .format_trace = format_pg_input_trace,
-
-  /* Input node will be left disabled until a stream is active. */
-  .state = VLIB_NODE_STATE_DISABLED,
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */