2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vppinfra/types.h>
17 #include <vnet/bier/bier_types.h>
18 #include <vnet/bier/bier_hdr_inlines.h>
21 * enum to string conversions
23 const static char* const bier_hdr_len_id_names[] = BIER_HDR_LEN_IDS;
24 const static char* const bier_hdr_proto_names[] = BIER_HDR_PROTO_ID_NAMES;
26 const static u16 bier_hdr_len_num_buckets[] = {
27 [BIER_HDR_LEN_INVALID] = 0,
28 [BIER_HDR_LEN_64] = 8,
29 [BIER_HDR_LEN_128] = 16,
30 [BIER_HDR_LEN_256] = 32,
31 [BIER_HDR_LEN_512] = 64,
32 [BIER_HDR_LEN_1024] = 128,
33 [BIER_HDR_LEN_2048] = 256,
34 [BIER_HDR_LEN_4096] = 512,
37 const static u16 bier_hdr_len_num_bits[] = {
38 [BIER_HDR_LEN_INVALID] = 0,
39 [BIER_HDR_LEN_64] = 64,
40 [BIER_HDR_LEN_128] = 128,
41 [BIER_HDR_LEN_256] = 256,
42 [BIER_HDR_LEN_512] = 512,
43 [BIER_HDR_LEN_1024] = 1024,
44 [BIER_HDR_LEN_2048] = 2048,
45 [BIER_HDR_LEN_4096] = 4096,
48 const static u16 bier_hdr_len_prefix_len[] = {
49 [BIER_HDR_LEN_INVALID] = 0,
50 [BIER_HDR_LEN_64] = 7,
51 [BIER_HDR_LEN_128] = 8,
52 [BIER_HDR_LEN_256] = 9,
53 [BIER_HDR_LEN_512] = 10,
54 [BIER_HDR_LEN_1024] = 11,
55 [BIER_HDR_LEN_2048] = 12,
56 [BIER_HDR_LEN_4096] = 13,
60 bier_hdr_len_id_to_num_buckets (bier_hdr_len_id_t id)
62 return (bier_hdr_len_num_buckets[id]);
66 bier_hdr_len_id_to_num_bytes (bier_hdr_len_id_t id)
68 return (bier_hdr_len_id_to_num_buckets(id));
72 bier_hdr_len_id_to_max_bucket (bier_hdr_len_id_t id)
74 return (bier_hdr_len_id_to_num_buckets(id) - 1);
78 bier_hdr_len_id_to_num_bits (bier_hdr_len_id_t id)
80 return (bier_hdr_len_num_bits[id]);
84 bier_hdr_len_id_to_max_bit (bier_hdr_len_id_t id)
86 return (bier_hdr_len_id_to_num_bits(id));
90 bier_hdr_len_id_to_prefix_len (bier_hdr_len_id_t id)
92 return (bier_hdr_len_prefix_len[id]);
96 format_bier_hdr_len_id (u8 *s, va_list *ap)
98 bier_hdr_len_id_t hli = va_arg(*ap, int); // int promotion of bier_hdr_len_id_t
100 return (format(s, "%s", bier_hdr_len_id_names[hli]));
104 format_bier_hdr_proto (u8 *s, va_list *ap)
106 bier_hdr_proto_id_t pi = va_arg(*ap, int);
108 return (format(s, "%s", bier_hdr_proto_names[pi]));
112 bier_table_id_cmp (const bier_table_id_t *btid1,
113 const bier_table_id_t *btid2)
117 res = (btid1->bti_set - btid2->bti_set);
121 res = (btid1->bti_sub_domain - btid2->bti_sub_domain);
125 res = (btid1->bti_ecmp - btid2->bti_ecmp);
129 res = (btid1->bti_hdr_len - btid2->bti_hdr_len);
133 res = (btid1->bti_type - btid2->bti_type);
139 bier_hdr_proto_to_dpo (bier_hdr_proto_id_t bproto)
143 case BIER_HDR_PROTO_INVALID:
144 case BIER_HDR_PROTO_CTRL:
145 case BIER_HDR_PROTO_OAM:
148 case BIER_HDR_PROTO_MPLS_DOWN_STREAM:
149 case BIER_HDR_PROTO_MPLS_UP_STREAM:
150 return (DPO_PROTO_MPLS);
151 case BIER_HDR_PROTO_ETHERNET:
152 case BIER_HDR_PROTO_VXLAN:
153 return (DPO_PROTO_ETHERNET);
154 case BIER_HDR_PROTO_IPV4:
155 return (DPO_PROTO_IP4);
156 case BIER_HDR_PROTO_IPV6:
157 return (DPO_PROTO_IP4);
160 return (DPO_PROTO_NUM);
164 bier_bift_id_encode (bier_table_set_id_t set,
165 bier_table_sub_domain_id_t sd,
166 bier_hdr_len_id_t bsl)
180 bier_bift_id_decode (bier_bift_id_t id,
181 bier_table_set_id_t *set,
182 bier_table_sub_domain_id_t *sd,
183 bier_hdr_len_id_t *bsl)
193 format_bier_table_id (u8 *s, va_list *ap)
195 bier_table_id_t *btid = va_arg(*ap, bier_table_id_t *);
197 return (format(s, "sub-domain:%d set:%d ecmp:%d bsl:%U",
198 btid->bti_sub_domain,
201 format_bier_hdr_len_id, btid->bti_hdr_len));
205 format_bier_hdr (u8 *s, va_list *ap)
207 bier_hdr_t *bh = va_arg(*ap, bier_hdr_t *);
208 bier_hdr_t copy = *bh;
210 bier_hdr_ntoh(©);
212 return (format(s, "nibble:%d version:%d hdr-len:%U entropy:%d proto:%U src:%d",
213 bier_hdr_get_1st_nibble(©),
214 bier_hdr_get_version(©),
215 format_bier_hdr_len_id, bier_hdr_get_len_id(©),
216 bier_hdr_get_entropy(©),
217 format_bier_hdr_proto, bier_hdr_get_proto_id(©),
218 bier_hdr_get_src_id(©)));
222 format_bier_bift_id(u8 *s, va_list *ap)
224 bier_bift_id_t id = va_arg(*ap, bier_bift_id_t);
225 bier_table_sub_domain_id_t sd;
226 bier_table_set_id_t set;
227 bier_hdr_len_id_t bsl;
229 bier_bift_id_decode(id, &set, &sd, &bsl);
231 return (format(s, "0x%x -> set:%d sd:%d hdr-len:%U",
232 id, set, sd, format_bier_hdr_len_id, bsl));