diff options
author | 2016-08-09 13:38:04 +0530 | |
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committer | 2016-11-03 11:44:21 +0000 | |
commit | ed4a2fdd4d62c46a2237157cd3a72bda16fceb6a (patch) | |
tree | 1fa59d681435a39f3b7f840b60229f8c3edf4f19 /plugins/ioam-plugin/ioam/encap/ip6_ioam_seqno.h | |
parent | 273c26a531bf031b3426588041bad67fe7f0a246 (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.h | 70 |
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 00000000..13a84db0 --- /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 |