src/plugins/ioam/analyse/ioam_analyse.h


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

@media only all and (prefers-color-scheme: dark) {
.highlight .hll { background-color: #49483e }
.highlight .c { color: #75715e } /* Comment */
.highlight .err { color: #960050; background-color: #1e0010 } /* Error */
.highlight .k { color: #66d9ef } /* Keyword */
.highlight .l { color: #ae81ff } /* Literal */
.highlight .n { color: #f8f8f2 } /* Name */
.highlight .o { color: #f92672 } /* Operator */
.highlight .p { color: #f8f8f2 } /* Punctuation */
.highlight .ch { color: #75715e } /* Comment.Hashbang */
.highlight .cm { color: #75715e } /* Comment.Multiline */
.highlight .cp { color: #75715e } /* Comment.Preproc */
.highlight .cpf { color: #75715e } /* Comment.PreprocFile */
.highlight .c1 { color: #75715e } /* Comment.Single */
.highlight .cs { color: #75715e } /* Comment.Special */
.highlight .gd { color: #f92672 } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gi { color: #a6e22e } /* Generic.Inserted */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #75715e } /* Generic.Subheading */
.highlight .kc { color: #66d9ef } /* Keyword.Constant */
.highlight .kd { color: #66d9ef } /* Keyword.Declaration */
.highlight .kn { color: #f92672 } /* Keyword.Namespace */
.highlight .kp { color: #66d9ef } /* Keyword.Pseudo */
.highlight .kr { color: #66d9ef } /* Keyword.Reserved */
.highlight .kt { color: #66d9ef } /* Keyword.Type */
.highlight .ld { color: #e6db74 } /* Literal.Date */
.highlight .m { color: #ae81ff } /* Literal.Number */
.highlight .s { color: #e6db74 } /* Literal.String */
.highlight .na { color: #a6e22e } /* Name.Attribute */
.highlight .nb { color: #f8f8f2 } /* Name.Builtin */
.highlight .nc { color: #a6e22e } /* Name.Class */
.highlight .no { color: #66d9ef } /* Name.Constant */
.highlight .nd { color: #a6e22e } /* Name.Decorator */
.highlight .ni { color: #f8f8f2 } /* Name.Entity */
.highlight .ne { color: #a6e22e } /* Name.Exception */
.highlight .nf { color: #a6e22e } /* Name.Function */
.highlight .nl { color: #f8f8f2 } /* Name.Label */
.highlight .nn { color: #f8f8f2 } /* Name.Namespace */
.highlight .nx { color: #a6e22e } /* Name.Other */
.highlight .py { color: #f8f8f2 } /* Name.Property */
.highlight .nt { color: #f92672 } /* Name.Tag */
.highlight .nv { color: #f8f8f2 } /* Name.Variable */
.highlight .ow { color: #f92672 } /* Operator.Word */
.highlight .w { color: #f8f8f2 } /* Text.Whitespace */
.highlight .mb { color: #ae81ff } /* Literal.Number.Bin */
.highlight .mf { color: #ae81ff } /* Literal.Number.Float */
.highlight .mh { color: #ae81ff } /* Literal.Number.Hex */
.highlight .mi { color: #ae81ff } /* Literal.Number.Integer */
.highlight .mo { color: #ae81ff } /* Literal.Number.Oct */
.highlight .sa { color: #e6db74 } /* Literal.String.Affix */
.highlight .sb { color: #e6db74 } /* Literal.String.Backtick */
.highlight .sc { color: #e6db74 } /* Literal.String.Char */
.highlight .dl { color: #e6db74 } /* Literal.String.Delimiter */
.highlight .sd { color: #e6db74 } /* Literal.String.Doc */
.highlight .s2 { color: #e6db74 } /* Literal.String.Double */
.highlight .se { color: #ae81ff } /* Literal.String.Escape */
.highlight .sh { color: #e6db74 } /* Literal.String.Heredoc */
.highlight .si { color: #e6db74 } /* Literal.String.Interpol */
.highlight .sx { color: #e6db74 } /* Literal.String.Other */
.highlight .sr { color: #e6db74 } /* Literal.String.Regex */
.highlight .s1 { color: #e6db74 } /* Literal.String.Single */
.highlight .ss { color: #e6db74 } /* Literal.String.Symbol */
.highlight .bp { color: #f8f8f2 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #a6e22e } /* Name.Function.Magic */
.highlight .vc { color: #f8f8f2 } /* Name.Variable.Class */
.highlight .vg { color: #f8f8f2 } /* Name.Variable.Global */
.highlight .vi { color: #f8f8f2 } /* Name.Variable.Instance */
.highlight .vm { color: #f8f8f2 } /* Name.Variable.Magic */
.highlight .il { color: #ae81ff } /* Literal.Number.Integer.Long */
}
@media (prefers-color-scheme: light) {
.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
}
# SPDX-License-Identifier: BSD-3-Clause
# Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved.
# Copyright 2017 NXP

#
# machine:
#
#   - can define ARCH variable (overridden by cmdline value)
#   - can define CROSS variable (overridden by cmdline value)
#   - define MACHINE_CFLAGS variable (overridden by cmdline value)
#   - define MACHINE_LDFLAGS variable (overridden by cmdline value)
#   - define MACHINE_ASFLAGS variable (overridden by cmdline value)
#   - can define CPU_CFLAGS variable (overridden by cmdline value) that
#     overrides the one defined in arch.
#   - can define CPU_LDFLAGS variable (overridden by cmdline value) that
#     overrides the one defined in arch.
#   - can define CPU_ASFLAGS variable (overridden by cmdline value) that
#     overrides the one defined in arch.
#   - may override any previously defined variable
#

# ARCH =
# CROSS =
# MACHINE_CFLAGS =
# MACHINE_LDFLAGS =
# MACHINE_ASFLAGS =
# CPU_CFLAGS =
# CPU_LDFLAGS =
# CPU_ASFLAGS =
MACHINE_CFLAGS += -march=armv8-a+crc

ifdef CONFIG_RTE_ARCH_ARM_TUNE
MACHINE_CFLAGS += -mtune=$(CONFIG_RTE_ARCH_ARM_TUNE:"%"=%)
endif
/*
 * Copyright (c) 2017 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.
 */

#ifndef PLUGINS_IOAM_PLUGIN_IOAM_ANALYSE_IOAM_ANALYSE_H_
#define PLUGINS_IOAM_PLUGIN_IOAM_ANALYSE_IOAM_ANALYSE_H_

#include <vlib/vlib.h>
#include <vnet/vnet.h>
#include <vppinfra/types.h>
#include <ioam/lib-e2e/e2e_util.h>
#include <ioam/lib-trace/trace_util.h>

#define IOAM_FLOW_TEMPLATE_ID    260
#define IOAM_TRACE_MAX_NODES      10
#define IOAM_MAX_PATHS_PER_FLOW   10

typedef struct
{
  u16 ingress_if;
  u16 egress_if;
  u32 node_id;
} ioam_path_map_t;

/** @brief Analysed iOAM trace data.
    @note cache aligned.
*/
typedef struct
{
  /** No of nodes in path. */
  u8 num_nodes;

  /** Data contained in trace - NodeId, TTL, Ingress & Egress Link, Timestamp. */
  u8 trace_type;

  /** Flag to indicate whether node is allocated. */
  u8 is_free;

  u8 pad[5];

  /** Actual PATH flow has taken. */
  ioam_path_map_t path[IOAM_TRACE_MAX_NODES];

  /** Num of pkts in the flow going over path. */
  u32 pkt_counter;

  /** Num of bytes in the flow going over path. */
  u32 bytes_counter;

  /** Minumum Dealay for the flow. */
  u32 min_delay;

  /** Maximum Dealay for the flow. */
  u32 max_delay;

  /** Average Dealay for the flow. */
  u32 mean_delay;

  u32 reserve;
} ioam_analyse_trace_record;

typedef struct
{
  ioam_analyse_trace_record path_data[IOAM_MAX_PATHS_PER_FLOW];
} ioam_analyse_trace_data;

/** @brief Analysed iOAM pot data.
    @note cache aligned.
*/
typedef struct
{
  /** Number of packets validated (passes through the service chain)
      within the timestamps. */
  u32 sfc_validated_count;

  /** Number of packets invalidated (failed through the service chain)
      within the timestamps. */
  u32 sfc_invalidated_count;
} ioam_analyse_pot_data;

/** @brief Analysed iOAM data.
    @note cache aligned.
*/
typedef struct ioam_analyser_data_t_
{
  u8 is_free;
  u8 pad[3];

  /** Num of pkts sent for this flow. */
  u32 pkt_sent;

  /** Num of pkts matching this flow. */
  u32 pkt_counter;

  /** Num of bytes matching this flow. */
  u32 bytes_counter;

  /** Analysed iOAM trace data. */
  ioam_analyse_trace_data trace_data;

  /** Analysed iOAM pot data. */
  ioam_analyse_pot_data pot_data;

  /** Analysed iOAM seqno data. */
  seqno_rx_info seqno_data;

  /** Cache of previously analysed data, useful for export. */
  struct ioam_analyser_data_t_ *chached_data_list;

  /** Lock to since we use this to export the data in other thread. */
  volatile u32 *writer_lock;
} ioam_analyser_data_t;

always_inline f64
ip6_ioam_analyse_calc_delay (ioam_trace_hdr_t * trace, u16 trace_len,
			     u8 oneway)
{
  u16 size_of_traceopt_per_node, size_of_all_traceopts;
  u8 num_nodes;
  u32 *start_elt, *end_elt, *uturn_elt;;
  u32 start_time, end_time;
  u8 done = 0;

  size_of_traceopt_per_node = fetch_trace_data_size (trace->ioam_trace_type);
  // Unknown trace type
  if (size_of_traceopt_per_node == 0)
    return 0;
  size_of_all_traceopts = trace_len;	/*ioam_trace_type,data_list_elts_left */

  num_nodes = (u8) (size_of_all_traceopts / size_of_traceopt_per_node);

  num_nodes -= trace->data_list_elts_left;

  start_elt = trace->elts;
  end_elt =
    trace->elts +
    (u32) (size_of_traceopt_per_node * (num_nodes - 1) / sizeof (u32));

  if (oneway && (trace->ioam_trace_type & BIT_TTL_NODEID))
    {
      done = 0;
      do
	{
	  uturn_elt = start_elt - size_of_traceopt_per_node / sizeof (u32);

	  if ((clib_net_to_host_u32 (*start_elt) >> 24) <=
	      (clib_net_to_host_u32 (*uturn_elt) >> 24))
	    done = 1;
	}
      while (!done && (start_elt = uturn_elt) != end_elt);
    }
  if (trace->ioam_trace_type & BIT_TTL_NODEID)
    {
      start_elt++;
      end_elt++;
    }
  if (trace->ioam_trace_type & BIT_ING_INTERFACE)
    {
      start_elt++;
      end_elt++;
    }
  start_time = clib_net_to_host_u32 (*start_elt);
  end_time = clib_net_to_host_u32 (*end_elt);

  return (f64) (end_time - start_time);
}

always_inline int
ip6_ioam_analyse_hbh_trace (ioam_analyser_data_t * data,
			    ioam_trace_hdr_t * trace, u16 pak_len,
			    u16 trace_len)
{
  ioam_analyse_trace_data *trace_data;
  u16 size_of_traceopt_per_node;
  u16 size_of_all_traceopts;
  u8 i, j, k, num_nodes, max_nodes;
  u8 *ptr;
  u32 nodeid;
  u16 ingress_if, egress_if;
  ioam_path_map_t *path = NULL;
  ioam_analyse_trace_record *trace_record;

  while (__sync_lock_test_and_set (data->writer_lock, 1))
    ;

  trace_data = &data->trace_data;

  size_of_traceopt_per_node = fetch_trace_data_size (trace->ioam_trace_type);
  // Unknown trace type
  if (size_of_traceopt_per_node == 0)
    goto DONE;
  size_of_all_traceopts = trace_len;

  ptr = (u8 *) trace->elts;
  max_nodes = (u8) (size_of_all_traceopts / size_of_traceopt_per_node);
  num_nodes = max_nodes - trace->data_list_elts_left;

  for (i = 0; i < IOAM_MAX_PATHS_PER_FLOW; i++)
    {
      trace_record = trace_data->path_data + i;

      if (trace_record->is_free ||
	  (num_nodes != trace_record->num_nodes) ||
	  (trace->ioam_trace_type != trace_record->trace_type))
	continue;

      path = trace_record->path;

      for (j = max_nodes, k = 0; k < num_nodes; j--, k++)
	{
	  ptr =
	    (u8 *) ((u8 *) trace->elts +
		    (size_of_traceopt_per_node * (j - 1)));

	  nodeid = clib_net_to_host_u32 (*((u32 *) ptr)) & 0x00ffffff;
	  ptr += 4;

	  if (nodeid != path[k].node_id)
	    break;

	  if ((trace->ioam_trace_type == TRACE_TYPE_IF_TS_APP) ||
	      (trace->ioam_trace_type == TRACE_TYPE_IF))
	    {
	      ingress_if = clib_net_to_host_u16 (*((u16 *) ptr));
	      ptr += 2;
	      egress_if = clib_net_to_host_u16 (*((u16 *) ptr));
	      if ((ingress_if != path[k].ingress_if) ||
		  (egress_if != path[k].egress_if))
		{
		  break;
		}
	    }
	}

      if (k == num_nodes)
	{
	  goto found_match;
	}
    }

  for (i = 0; i < IOAM_MAX_PATHS_PER_FLOW; i++)
    {
      trace_record = trace_data->path_data + i;
      if (trace_record->is_free)
	{
	  trace_record->is_free = 0;
	  trace_record->num_nodes = num_nodes;
	  trace_record->trace_type = trace->ioam_trace_type;
	  path = trace_data->path_data[i].path;
	  trace_record->pkt_counter = 0;
	  trace_record->bytes_counter = 0;
	  trace_record->min_delay = 0xFFFFFFFF;
	  trace_record->max_delay = 0;
	  trace_record->mean_delay = 0;
	  break;
	}
    }

  for (j = max_nodes, k = 0; k < num_nodes; j--, k++)
    {
      ptr =
	(u8 *) ((u8 *) trace->elts + (size_of_traceopt_per_node * (j - 1)));

      path[k].node_id = clib_net_to_host_u32 (*((u32 *) ptr)) & 0x00ffffff;
      ptr += 4;

      if ((trace->ioam_trace_type == TRACE_TYPE_IF_TS_APP) ||
	  (trace->ioam_trace_type == TRACE_TYPE_IF))
	{
	  path[k].ingress_if = clib_net_to_host_u16 (*((u16 *) ptr));
	  ptr += 2;
	  path[k].egress_if = clib_net_to_host_u16 (*((u16 *) ptr));
	}
    }

found_match:
  trace_record->pkt_counter++;
  trace_record->bytes_counter += pak_len;
  if (trace->ioam_trace_type & BIT_TIMESTAMP)
    {
      /* Calculate time delay */
      u32 delay = (u32) ip6_ioam_analyse_calc_delay (trace, trace_len, 0);
      if (delay < trace_record->min_delay)
	trace_record->min_delay = delay;
      else if (delay > trace_record->max_delay)
	trace_record->max_delay = delay;

      u64 sum = (trace_record->mean_delay * data->seqno_data.rx_packets);
      trace_record->mean_delay =
	(u32) ((sum + delay) / (data->seqno_data.rx_packets + 1));
    }
DONE:
  *(data->writer_lock) = 0;
  return 0;
}

always_inline int
ip6_ioam_analyse_hbh_e2e (ioam_analyser_data_t * data,
			  ioam_e2e_packet_t * e2e, u16 len)
{
  while (__sync_lock_test_and_set (data->writer_lock, 1))
    ;

  ioam_analyze_seqno (&data->seqno_data,
		      (u64) clib_net_to_host_u32 (e2e->e2e_data));

  *(data->writer_lock) = 0;
  return 0;
}

always_inline u8 *
format_path_map (u8 * s, va_list * args)
{
  ioam_path_map_t *pm = va_arg (*args, ioam_path_map_t *);
  u32 num_of_elts = va_arg (*args, u32);
  u32 i;

  for (i = 0; i < num_of_elts; i++)
    {
      s = format (s, "node_id: 0x%x, ingress_if: 0x%x, egress_if:0x%x\n",
		  pm->node_id, pm->ingress_if, pm->egress_if);
      pm++;
    }

  return (s);
}

always_inline u8 *
print_analyse_flow (u8 * s, ioam_analyser_data_t * record)
{
  int j;
  ioam_analyse_trace_record *trace_record;

  s = format (s, "pkt_sent : %u\n", record->pkt_sent);
  s = format (s, "pkt_counter : %u\n", record->pkt_counter);
  s = format (s, "bytes_counter : %u\n", record->bytes_counter);

  s = format (s, "Trace data: \n");

  for (j = 0; j < IOAM_MAX_PATHS_PER_FLOW; j++)
    {
      trace_record = record->trace_data.path_data + j;
      if (trace_record->is_free)
	continue;

      s = format (s, "path_map:\n%U", format_path_map,
		  trace_record->path, trace_record->num_nodes);
      s = format (s, "pkt_counter: %u\n", trace_record->pkt_counter);
      s = format (s, "bytes_counter: %u\n", trace_record->bytes_counter);

      s = format (s, "min_delay: %u\n", trace_record->min_delay);
      s = format (s, "max_delay: %u\n", trace_record->max_delay);
      s = format (s, "mean_delay: %u\n", trace_record->mean_delay);
    }

  s = format (s, "\nPOT data: \n");
  s = format (s, "sfc_validated_count : %u\n",
	      record->pot_data.sfc_validated_count);
  s = format (s, "sfc_invalidated_count : %u\n",
	      record->pot_data.sfc_invalidated_count);

  s = format (s, "\nSeqno Data:\n");
  s = format (s,
	      "RX Packets        : %lu\n"
	      "Lost Packets      : %lu\n"
	      "Duplicate Packets : %lu\n"
	      "Reordered Packets : %lu\n",
	      record->seqno_data.rx_packets,
	      record->seqno_data.lost_packets,
	      record->seqno_data.dup_packets,
	      record->seqno_data.reordered_packets);

  s = format (s, "\n");
  return s;
}

always_inline void
ioam_analyse_init_data (ioam_analyser_data_t * data)
{
  u16 j;
  ioam_analyse_trace_data *trace_data;

  data->is_free = 1;

  /* We maintain data corresponding to last IP-Fix export, this may
   * get extended in future to maintain history of data */
  vec_validate_aligned (data->chached_data_list, 0, CLIB_CACHE_LINE_BYTES);

  data->writer_lock = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
					      CLIB_CACHE_LINE_BYTES);
  *(data->writer_lock) = 0;

  trace_data = &(data->trace_data);
  for (j = 0; j < IOAM_MAX_PATHS_PER_FLOW; j++)
    trace_data->path_data[j].is_free = 1;
}

#endif /* PLUGINS_IOAM_PLUGIN_IOAM_ANALYSE_IOAM_ANALYSE_H_ */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */