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1/*
2 * Copyright (c) 2004 Topspin Corporation. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#ifndef IB_PACK_H
34#define IB_PACK_H
35
36#include <rdma/ib_verbs.h>
37
38enum {
39 IB_LRH_BYTES = 8,
40 IB_ETH_BYTES = 14,
41 IB_VLAN_BYTES = 4,
42 IB_GRH_BYTES = 40,
43 IB_BTH_BYTES = 12,
44 IB_DETH_BYTES = 8
45};
46
47struct ib_field {
48 size_t struct_offset_bytes;
49 size_t struct_size_bytes;
50 int offset_words;
51 int offset_bits;
52 int size_bits;
53 char *field_name;
54};
55
56#define RESERVED \
57 .field_name = "reserved"
58
59/*
60 * This macro cleans up the definitions of constants for BTH opcodes.
61 * It is used to define constants such as IB_OPCODE_UD_SEND_ONLY,
62 * which becomes IB_OPCODE_UD + IB_OPCODE_SEND_ONLY, and this gives
63 * the correct value.
64 *
65 * In short, user code should use the constants defined using the
66 * macro rather than worrying about adding together other constants.
67*/
68#define IB_OPCODE(transport, op) \
69 IB_OPCODE_ ## transport ## _ ## op = \
70 IB_OPCODE_ ## transport + IB_OPCODE_ ## op
71
72enum {
73 /* transport types -- just used to define real constants */
74 IB_OPCODE_RC = 0x00,
75 IB_OPCODE_UC = 0x20,
76 IB_OPCODE_RD = 0x40,
77 IB_OPCODE_UD = 0x60,
78
79 /* operations -- just used to define real constants */
80 IB_OPCODE_SEND_FIRST = 0x00,
81 IB_OPCODE_SEND_MIDDLE = 0x01,
82 IB_OPCODE_SEND_LAST = 0x02,
83 IB_OPCODE_SEND_LAST_WITH_IMMEDIATE = 0x03,
84 IB_OPCODE_SEND_ONLY = 0x04,
85 IB_OPCODE_SEND_ONLY_WITH_IMMEDIATE = 0x05,
86 IB_OPCODE_RDMA_WRITE_FIRST = 0x06,
87 IB_OPCODE_RDMA_WRITE_MIDDLE = 0x07,
88 IB_OPCODE_RDMA_WRITE_LAST = 0x08,
89 IB_OPCODE_RDMA_WRITE_LAST_WITH_IMMEDIATE = 0x09,
90 IB_OPCODE_RDMA_WRITE_ONLY = 0x0a,
91 IB_OPCODE_RDMA_WRITE_ONLY_WITH_IMMEDIATE = 0x0b,
92 IB_OPCODE_RDMA_READ_REQUEST = 0x0c,
93 IB_OPCODE_RDMA_READ_RESPONSE_FIRST = 0x0d,
94 IB_OPCODE_RDMA_READ_RESPONSE_MIDDLE = 0x0e,
95 IB_OPCODE_RDMA_READ_RESPONSE_LAST = 0x0f,
96 IB_OPCODE_RDMA_READ_RESPONSE_ONLY = 0x10,
97 IB_OPCODE_ACKNOWLEDGE = 0x11,
98 IB_OPCODE_ATOMIC_ACKNOWLEDGE = 0x12,
99 IB_OPCODE_COMPARE_SWAP = 0x13,
100 IB_OPCODE_FETCH_ADD = 0x14,
101
102 /* real constants follow -- see comment about above IB_OPCODE()
103 macro for more details */
104
105 /* RC */
106 IB_OPCODE(RC, SEND_FIRST),
107 IB_OPCODE(RC, SEND_MIDDLE),
108 IB_OPCODE(RC, SEND_LAST),
109 IB_OPCODE(RC, SEND_LAST_WITH_IMMEDIATE),
110 IB_OPCODE(RC, SEND_ONLY),
111 IB_OPCODE(RC, SEND_ONLY_WITH_IMMEDIATE),
112 IB_OPCODE(RC, RDMA_WRITE_FIRST),
113 IB_OPCODE(RC, RDMA_WRITE_MIDDLE),
114 IB_OPCODE(RC, RDMA_WRITE_LAST),
115 IB_OPCODE(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE),
116 IB_OPCODE(RC, RDMA_WRITE_ONLY),
117 IB_OPCODE(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
118 IB_OPCODE(RC, RDMA_READ_REQUEST),
119 IB_OPCODE(RC, RDMA_READ_RESPONSE_FIRST),
120 IB_OPCODE(RC, RDMA_READ_RESPONSE_MIDDLE),
121 IB_OPCODE(RC, RDMA_READ_RESPONSE_LAST),
122 IB_OPCODE(RC, RDMA_READ_RESPONSE_ONLY),
123 IB_OPCODE(RC, ACKNOWLEDGE),
124 IB_OPCODE(RC, ATOMIC_ACKNOWLEDGE),
125 IB_OPCODE(RC, COMPARE_SWAP),
126 IB_OPCODE(RC, FETCH_ADD),
127
128 /* UC */
129 IB_OPCODE(UC, SEND_FIRST),
130 IB_OPCODE(UC, SEND_MIDDLE),
131 IB_OPCODE(UC, SEND_LAST),
132 IB_OPCODE(UC, SEND_LAST_WITH_IMMEDIATE),
133 IB_OPCODE(UC, SEND_ONLY),
134 IB_OPCODE(UC, SEND_ONLY_WITH_IMMEDIATE),
135 IB_OPCODE(UC, RDMA_WRITE_FIRST),
136 IB_OPCODE(UC, RDMA_WRITE_MIDDLE),
137 IB_OPCODE(UC, RDMA_WRITE_LAST),
138 IB_OPCODE(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE),
139 IB_OPCODE(UC, RDMA_WRITE_ONLY),
140 IB_OPCODE(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
141
142 /* RD */
143 IB_OPCODE(RD, SEND_FIRST),
144 IB_OPCODE(RD, SEND_MIDDLE),
145 IB_OPCODE(RD, SEND_LAST),
146 IB_OPCODE(RD, SEND_LAST_WITH_IMMEDIATE),
147 IB_OPCODE(RD, SEND_ONLY),
148 IB_OPCODE(RD, SEND_ONLY_WITH_IMMEDIATE),
149 IB_OPCODE(RD, RDMA_WRITE_FIRST),
150 IB_OPCODE(RD, RDMA_WRITE_MIDDLE),
151 IB_OPCODE(RD, RDMA_WRITE_LAST),
152 IB_OPCODE(RD, RDMA_WRITE_LAST_WITH_IMMEDIATE),
153 IB_OPCODE(RD, RDMA_WRITE_ONLY),
154 IB_OPCODE(RD, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
155 IB_OPCODE(RD, RDMA_READ_REQUEST),
156 IB_OPCODE(RD, RDMA_READ_RESPONSE_FIRST),
157 IB_OPCODE(RD, RDMA_READ_RESPONSE_MIDDLE),
158 IB_OPCODE(RD, RDMA_READ_RESPONSE_LAST),
159 IB_OPCODE(RD, RDMA_READ_RESPONSE_ONLY),
160 IB_OPCODE(RD, ACKNOWLEDGE),
161 IB_OPCODE(RD, ATOMIC_ACKNOWLEDGE),
162 IB_OPCODE(RD, COMPARE_SWAP),
163 IB_OPCODE(RD, FETCH_ADD),
164
165 /* UD */
166 IB_OPCODE(UD, SEND_ONLY),
167 IB_OPCODE(UD, SEND_ONLY_WITH_IMMEDIATE)
168};
169
170enum {
171 IB_LNH_RAW = 0,
172 IB_LNH_IP = 1,
173 IB_LNH_IBA_LOCAL = 2,
174 IB_LNH_IBA_GLOBAL = 3
175};
176
177struct ib_unpacked_lrh {
178 u8 virtual_lane;
179 u8 link_version;
180 u8 service_level;
181 u8 link_next_header;
182 __be16 destination_lid;
183 __be16 packet_length;
184 __be16 source_lid;
185};
186
187struct ib_unpacked_grh {
188 u8 ip_version;
189 u8 traffic_class;
190 __be32 flow_label;
191 __be16 payload_length;
192 u8 next_header;
193 u8 hop_limit;
194 union ib_gid source_gid;
195 union ib_gid destination_gid;
196};
197
198struct ib_unpacked_bth {
199 u8 opcode;
200 u8 solicited_event;
201 u8 mig_req;
202 u8 pad_count;
203 u8 transport_header_version;
204 __be16 pkey;
205 __be32 destination_qpn;
206 u8 ack_req;
207 __be32 psn;
208};
209
210struct ib_unpacked_deth {
211 __be32 qkey;
212 __be32 source_qpn;
213};
214
215struct ib_unpacked_eth {
216 u8 dmac_h[4];
217 u8 dmac_l[2];
218 u8 smac_h[2];
219 u8 smac_l[4];
220 __be16 type;
221};
222
223struct ib_unpacked_vlan {
224 __be16 tag;
225 __be16 type;
226};
227
228struct ib_ud_header {
229 int lrh_present;
230 struct ib_unpacked_lrh lrh;
231 int eth_present;
232 struct ib_unpacked_eth eth;
233 int vlan_present;
234 struct ib_unpacked_vlan vlan;
235 int grh_present;
236 struct ib_unpacked_grh grh;
237 struct ib_unpacked_bth bth;
238 struct ib_unpacked_deth deth;
239 int immediate_present;
240 __be32 immediate_data;
241};
242
243void ib_pack(const struct ib_field *desc,
244 int desc_len,
245 void *structure,
246 void *buf);
247
248void ib_unpack(const struct ib_field *desc,
249 int desc_len,
250 void *buf,
251 void *structure);
252
253void ib_ud_header_init(int payload_bytes,
254 int lrh_present,
255 int eth_present,
256 int vlan_present,
257 int grh_present,
258 int immediate_present,
259 struct ib_ud_header *header);
260
261int ib_ud_header_pack(struct ib_ud_header *header,
262 void *buf);
263
264int ib_ud_header_unpack(void *buf,
265 struct ib_ud_header *header);
266
267#endif /* IB_PACK_H */
1/*
2 * Copyright (c) 2004 Topspin Corporation. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#ifndef IB_PACK_H
34#define IB_PACK_H
35
36#include <rdma/ib_verbs.h>
37#include <uapi/linux/if_ether.h>
38
39enum {
40 IB_LRH_BYTES = 8,
41 IB_ETH_BYTES = 14,
42 IB_VLAN_BYTES = 4,
43 IB_GRH_BYTES = 40,
44 IB_IP4_BYTES = 20,
45 IB_UDP_BYTES = 8,
46 IB_BTH_BYTES = 12,
47 IB_DETH_BYTES = 8,
48 IB_EXT_ATOMICETH_BYTES = 28,
49 IB_EXT_XRC_BYTES = 4,
50 IB_ICRC_BYTES = 4
51};
52
53struct ib_field {
54 size_t struct_offset_bytes;
55 size_t struct_size_bytes;
56 int offset_words;
57 int offset_bits;
58 int size_bits;
59 char *field_name;
60};
61
62#define RESERVED \
63 .field_name = "reserved"
64
65/*
66 * This macro cleans up the definitions of constants for BTH opcodes.
67 * It is used to define constants such as IB_OPCODE_UD_SEND_ONLY,
68 * which becomes IB_OPCODE_UD + IB_OPCODE_SEND_ONLY, and this gives
69 * the correct value.
70 *
71 * In short, user code should use the constants defined using the
72 * macro rather than worrying about adding together other constants.
73*/
74#define IB_OPCODE(transport, op) \
75 IB_OPCODE_ ## transport ## _ ## op = \
76 IB_OPCODE_ ## transport + IB_OPCODE_ ## op
77
78enum {
79 /* transport types -- just used to define real constants */
80 IB_OPCODE_RC = 0x00,
81 IB_OPCODE_UC = 0x20,
82 IB_OPCODE_RD = 0x40,
83 IB_OPCODE_UD = 0x60,
84 /* per IBTA 1.3 vol 1 Table 38, A10.3.2 */
85 IB_OPCODE_CNP = 0x80,
86 /* Manufacturer specific */
87 IB_OPCODE_MSP = 0xe0,
88
89 /* operations -- just used to define real constants */
90 IB_OPCODE_SEND_FIRST = 0x00,
91 IB_OPCODE_SEND_MIDDLE = 0x01,
92 IB_OPCODE_SEND_LAST = 0x02,
93 IB_OPCODE_SEND_LAST_WITH_IMMEDIATE = 0x03,
94 IB_OPCODE_SEND_ONLY = 0x04,
95 IB_OPCODE_SEND_ONLY_WITH_IMMEDIATE = 0x05,
96 IB_OPCODE_RDMA_WRITE_FIRST = 0x06,
97 IB_OPCODE_RDMA_WRITE_MIDDLE = 0x07,
98 IB_OPCODE_RDMA_WRITE_LAST = 0x08,
99 IB_OPCODE_RDMA_WRITE_LAST_WITH_IMMEDIATE = 0x09,
100 IB_OPCODE_RDMA_WRITE_ONLY = 0x0a,
101 IB_OPCODE_RDMA_WRITE_ONLY_WITH_IMMEDIATE = 0x0b,
102 IB_OPCODE_RDMA_READ_REQUEST = 0x0c,
103 IB_OPCODE_RDMA_READ_RESPONSE_FIRST = 0x0d,
104 IB_OPCODE_RDMA_READ_RESPONSE_MIDDLE = 0x0e,
105 IB_OPCODE_RDMA_READ_RESPONSE_LAST = 0x0f,
106 IB_OPCODE_RDMA_READ_RESPONSE_ONLY = 0x10,
107 IB_OPCODE_ACKNOWLEDGE = 0x11,
108 IB_OPCODE_ATOMIC_ACKNOWLEDGE = 0x12,
109 IB_OPCODE_COMPARE_SWAP = 0x13,
110 IB_OPCODE_FETCH_ADD = 0x14,
111 /* opcode 0x15 is reserved */
112 IB_OPCODE_SEND_LAST_WITH_INVALIDATE = 0x16,
113 IB_OPCODE_SEND_ONLY_WITH_INVALIDATE = 0x17,
114
115 /* real constants follow -- see comment about above IB_OPCODE()
116 macro for more details */
117
118 /* RC */
119 IB_OPCODE(RC, SEND_FIRST),
120 IB_OPCODE(RC, SEND_MIDDLE),
121 IB_OPCODE(RC, SEND_LAST),
122 IB_OPCODE(RC, SEND_LAST_WITH_IMMEDIATE),
123 IB_OPCODE(RC, SEND_ONLY),
124 IB_OPCODE(RC, SEND_ONLY_WITH_IMMEDIATE),
125 IB_OPCODE(RC, RDMA_WRITE_FIRST),
126 IB_OPCODE(RC, RDMA_WRITE_MIDDLE),
127 IB_OPCODE(RC, RDMA_WRITE_LAST),
128 IB_OPCODE(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE),
129 IB_OPCODE(RC, RDMA_WRITE_ONLY),
130 IB_OPCODE(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
131 IB_OPCODE(RC, RDMA_READ_REQUEST),
132 IB_OPCODE(RC, RDMA_READ_RESPONSE_FIRST),
133 IB_OPCODE(RC, RDMA_READ_RESPONSE_MIDDLE),
134 IB_OPCODE(RC, RDMA_READ_RESPONSE_LAST),
135 IB_OPCODE(RC, RDMA_READ_RESPONSE_ONLY),
136 IB_OPCODE(RC, ACKNOWLEDGE),
137 IB_OPCODE(RC, ATOMIC_ACKNOWLEDGE),
138 IB_OPCODE(RC, COMPARE_SWAP),
139 IB_OPCODE(RC, FETCH_ADD),
140 IB_OPCODE(RC, SEND_LAST_WITH_INVALIDATE),
141 IB_OPCODE(RC, SEND_ONLY_WITH_INVALIDATE),
142
143 /* UC */
144 IB_OPCODE(UC, SEND_FIRST),
145 IB_OPCODE(UC, SEND_MIDDLE),
146 IB_OPCODE(UC, SEND_LAST),
147 IB_OPCODE(UC, SEND_LAST_WITH_IMMEDIATE),
148 IB_OPCODE(UC, SEND_ONLY),
149 IB_OPCODE(UC, SEND_ONLY_WITH_IMMEDIATE),
150 IB_OPCODE(UC, RDMA_WRITE_FIRST),
151 IB_OPCODE(UC, RDMA_WRITE_MIDDLE),
152 IB_OPCODE(UC, RDMA_WRITE_LAST),
153 IB_OPCODE(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE),
154 IB_OPCODE(UC, RDMA_WRITE_ONLY),
155 IB_OPCODE(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
156
157 /* RD */
158 IB_OPCODE(RD, SEND_FIRST),
159 IB_OPCODE(RD, SEND_MIDDLE),
160 IB_OPCODE(RD, SEND_LAST),
161 IB_OPCODE(RD, SEND_LAST_WITH_IMMEDIATE),
162 IB_OPCODE(RD, SEND_ONLY),
163 IB_OPCODE(RD, SEND_ONLY_WITH_IMMEDIATE),
164 IB_OPCODE(RD, RDMA_WRITE_FIRST),
165 IB_OPCODE(RD, RDMA_WRITE_MIDDLE),
166 IB_OPCODE(RD, RDMA_WRITE_LAST),
167 IB_OPCODE(RD, RDMA_WRITE_LAST_WITH_IMMEDIATE),
168 IB_OPCODE(RD, RDMA_WRITE_ONLY),
169 IB_OPCODE(RD, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
170 IB_OPCODE(RD, RDMA_READ_REQUEST),
171 IB_OPCODE(RD, RDMA_READ_RESPONSE_FIRST),
172 IB_OPCODE(RD, RDMA_READ_RESPONSE_MIDDLE),
173 IB_OPCODE(RD, RDMA_READ_RESPONSE_LAST),
174 IB_OPCODE(RD, RDMA_READ_RESPONSE_ONLY),
175 IB_OPCODE(RD, ACKNOWLEDGE),
176 IB_OPCODE(RD, ATOMIC_ACKNOWLEDGE),
177 IB_OPCODE(RD, COMPARE_SWAP),
178 IB_OPCODE(RD, FETCH_ADD),
179
180 /* UD */
181 IB_OPCODE(UD, SEND_ONLY),
182 IB_OPCODE(UD, SEND_ONLY_WITH_IMMEDIATE)
183};
184
185enum {
186 IB_LNH_RAW = 0,
187 IB_LNH_IP = 1,
188 IB_LNH_IBA_LOCAL = 2,
189 IB_LNH_IBA_GLOBAL = 3
190};
191
192struct ib_unpacked_lrh {
193 u8 virtual_lane;
194 u8 link_version;
195 u8 service_level;
196 u8 link_next_header;
197 __be16 destination_lid;
198 __be16 packet_length;
199 __be16 source_lid;
200};
201
202struct ib_unpacked_grh {
203 u8 ip_version;
204 u8 traffic_class;
205 __be32 flow_label;
206 __be16 payload_length;
207 u8 next_header;
208 u8 hop_limit;
209 union ib_gid source_gid;
210 union ib_gid destination_gid;
211};
212
213struct ib_unpacked_bth {
214 u8 opcode;
215 u8 solicited_event;
216 u8 mig_req;
217 u8 pad_count;
218 u8 transport_header_version;
219 __be16 pkey;
220 __be32 destination_qpn;
221 u8 ack_req;
222 __be32 psn;
223};
224
225struct ib_unpacked_deth {
226 __be32 qkey;
227 __be32 source_qpn;
228};
229
230struct ib_unpacked_eth {
231 u8 dmac_h[4];
232 u8 dmac_l[2];
233 u8 smac_h[2];
234 u8 smac_l[4];
235 __be16 type;
236};
237
238struct ib_unpacked_ip4 {
239 u8 ver;
240 u8 hdr_len;
241 u8 tos;
242 __be16 tot_len;
243 __be16 id;
244 __be16 frag_off;
245 u8 ttl;
246 u8 protocol;
247 __sum16 check;
248 __be32 saddr;
249 __be32 daddr;
250};
251
252struct ib_unpacked_udp {
253 __be16 sport;
254 __be16 dport;
255 __be16 length;
256 __be16 csum;
257};
258
259struct ib_unpacked_vlan {
260 __be16 tag;
261 __be16 type;
262};
263
264struct ib_ud_header {
265 int lrh_present;
266 struct ib_unpacked_lrh lrh;
267 int eth_present;
268 struct ib_unpacked_eth eth;
269 int vlan_present;
270 struct ib_unpacked_vlan vlan;
271 int grh_present;
272 struct ib_unpacked_grh grh;
273 int ipv4_present;
274 struct ib_unpacked_ip4 ip4;
275 int udp_present;
276 struct ib_unpacked_udp udp;
277 struct ib_unpacked_bth bth;
278 struct ib_unpacked_deth deth;
279 int immediate_present;
280 __be32 immediate_data;
281};
282
283void ib_pack(const struct ib_field *desc,
284 int desc_len,
285 void *structure,
286 void *buf);
287
288void ib_unpack(const struct ib_field *desc,
289 int desc_len,
290 void *buf,
291 void *structure);
292
293__sum16 ib_ud_ip4_csum(struct ib_ud_header *header);
294
295int ib_ud_header_init(int payload_bytes,
296 int lrh_present,
297 int eth_present,
298 int vlan_present,
299 int grh_present,
300 int ip_version,
301 int udp_present,
302 int immediate_present,
303 struct ib_ud_header *header);
304
305int ib_ud_header_pack(struct ib_ud_header *header,
306 void *buf);
307
308int ib_ud_header_unpack(void *buf,
309 struct ib_ud_header *header);
310
311#endif /* IB_PACK_H */