summaryrefslogtreecommitdiffstats
path: root/plugins/ioam-plugin/ioam/encap/ip6_ioam_seqno.h
diff options
context:
space:
mode:
authorAkshayaNadahalli <anadahal@cisco.com>2016-08-09 13:38:04 +0530
committerDave Barach <openvpp@barachs.net>2016-11-03 11:44:21 +0000
commited4a2fdd4d62c46a2237157cd3a72bda16fceb6a (patch)
tree1fa59d681435a39f3b7f840b60229f8c3edf4f19 /plugins/ioam-plugin/ioam/encap/ip6_ioam_seqno.h
parent273c26a531bf031b3426588041bad67fe7f0a246 (diff)
Adding Sequence Number - Per Packet Counter(PPC) support for iOAM6.
- Added support in classifier session to identify a flow to be iOAM6 encap/decap - Sequence number as part of iOAM6 E2E header is created as a plugin. Change-Id: Ib7605de45aecff25d684d099b525f8dc96ee7038 Signed-off-by: AkshayaNadahalli <anadahal@cisco.com>
Diffstat (limited to 'plugins/ioam-plugin/ioam/encap/ip6_ioam_seqno.h')
-rw-r--r--plugins/ioam-plugin/ioam/encap/ip6_ioam_seqno.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/plugins/ioam-plugin/ioam/encap/ip6_ioam_seqno.h b/plugins/ioam-plugin/ioam/encap/ip6_ioam_seqno.h
new file mode 100644
index 00000000000..13a84db0d71
--- /dev/null
+++ b/plugins/ioam-plugin/ioam/encap/ip6_ioam_seqno.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2016 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 __included_ip6_ioam_seqno_h__
+#define __included_ip6_ioam_seqno_h__
+
+#include <vnet/ip/ip6_packet.h>
+#include <vnet/ip/ip6_hop_by_hop.h>
+
+#define SEQ_CHECK_VALUE 0x80000000 /* for seq number wraparound detection */
+
+#define SEQNO_WINDOW_SIZE 2048
+#define SEQNO_WINDOW_ARRAY_SIZE 64
+
+typedef struct seqno_bitmap_ {
+ u32 window_size;
+ u32 array_size;
+ u32 mask;
+ u32 pad;
+ u64 highest;
+ u64 array[SEQNO_WINDOW_ARRAY_SIZE]; /* Will be alloc to array_size */
+} seqno_bitmap;
+
+typedef struct seqno_rx_info_ {
+ u64 rx_packets;
+ u64 lost_packets;
+ u64 reordered_packets;
+ u64 dup_packets;
+ seqno_bitmap bitmap;
+} seqno_rx_info;
+
+/* This structure is 64-byte aligned */
+typedef struct ioam_seqno_data_ {
+ union {
+ u32 seq_num; /* Useful only for encap node */
+ seqno_rx_info seqno_rx;
+ };
+} ioam_seqno_data;
+
+typedef struct ioam_seqno_data_main_t_ {
+ ioam_seqno_data *seqno_data;
+} ioam_seqno_data_main_t;
+
+void ioam_seqno_init_bitmap(ioam_seqno_data *data);
+
+int ioam_seqno_encap_handler(vlib_buffer_t *b, ip6_header_t *ip,
+ ip6_hop_by_hop_option_t *opt);
+
+int
+ioam_seqno_decap_handler(vlib_buffer_t *b, ip6_header_t *ip,
+ ip6_hop_by_hop_option_t *opt);
+
+void ioam_analyze_seqno(seqno_rx_info *ppc_rx, u64 seqno);
+
+u8 *
+show_ioam_seqno_cmd_fn(u8 *s, ioam_seqno_data *seqno_data, u8 enc);
+
+#endif