ndisreg.h revision 1.1.6.3 1 /* $NetBSD: ndisreg.h,v 1.1.6.3 2020/04/08 14:08:06 martin Exp $ */
2 /* $OpenBSD: ndis.h,v 1.2 2016/09/23 11:32:13 mikeb Exp $ */
3
4 /*-
5 * Copyright (c) 2016-2017 Microsoft Corp.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice unmodified, this list of conditions, and the following
13 * disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $FreeBSD: head/sys/dev/hyperv/netvsc/ndis.h 324516 2017-10-11 05:15:49Z sephe $
30 */
31
32 #ifndef _DEV_IC_NDIS_H_
33 #define _DEV_IC_NDIS_H_
34
35 /*
36 * NDIS protocol version numbers
37 */
38 #define NDIS_VERSION_5_0 0x00050000
39 #define NDIS_VERSION_5_1 0x00050001
40 #define NDIS_VERSION_6_0 0x00060000
41 #define NDIS_VERSION_6_1 0x00060001
42 #define NDIS_VERSION_6_20 0x00060014
43 #define NDIS_VERSION_6_30 0x0006001e
44
45 #define NDIS_MEDIA_STATE_CONNECTED 0
46 #define NDIS_MEDIA_STATE_DISCONNECTED 1
47
48 #define NDIS_NETCHANGE_TYPE_POSSIBLE 1
49 #define NDIS_NETCHANGE_TYPE_DEFINITE 2
50 #define NDIS_NETCHANGE_TYPE_FROMMEDIA 3
51
52 #define NDIS_OFFLOAD_SET_NOCHG 0
53 #define NDIS_OFFLOAD_SET_ON 1
54 #define NDIS_OFFLOAD_SET_OFF 2
55
56 /* a.k.a GRE MAC */
57 #define NDIS_ENCAP_TYPE_NVGRE 0x00000001
58
59 #define NDIS_HASH_FUNCTION_MASK 0x000000FF /* see hash function */
60 #define NDIS_HASH_TYPE_MASK 0x00FFFF00 /* see hash type */
61
62 /* hash function */
63 #define NDIS_HASH_FUNCTION_TOEPLITZ 0x00000001
64
65 /* hash type */
66 #define NDIS_HASH_IPV4 0x00000100
67 #define NDIS_HASH_TCP_IPV4 0x00000200
68 #define NDIS_HASH_IPV6 0x00000400
69 #define NDIS_HASH_IPV6_EX 0x00000800
70 #define NDIS_HASH_TCP_IPV6 0x00001000
71 #define NDIS_HASH_TCP_IPV6_EX 0x00002000
72 #define NDIS_HASH_UDP_IPV4_X 0x00004000 /* XXX non-standard */
73
74 #define NDIS_HASH_ALL (NDIS_HASH_IPV4 | \
75 NDIS_HASH_TCP_IPV4 | \
76 NDIS_HASH_IPV6 | \
77 NDIS_HASH_IPV6_EX | \
78 NDIS_HASH_TCP_IPV6 | \
79 NDIS_HASH_TCP_IPV6_EX |\
80 NDIS_HASH_UDP_IPV4_X)
81
82 #define NDIS_HASH_STD (NDIS_HASH_IPV4 | \
83 NDIS_HASH_TCP_IPV4 | \
84 NDIS_HASH_IPV6 | \
85 NDIS_HASH_IPV6_EX | \
86 NDIS_HASH_TCP_IPV6 | \
87 NDIS_HASH_TCP_IPV6_EX)
88
89 /* Hash description for use with printf(9) %b identifier. */
90 #define NDIS_HASH_BITS \
91 "\20\1TOEPLITZ\11IP4\12TCP4\13IP6\14IP6EX\15TCP6\16TCP6EX\17UDP4_X"
92
93 #define NDIS_HASH_KEYSIZE_TOEPLITZ 40
94 #define NDIS_HASH_INDCNT 128
95
96 #define NDIS_OBJTYPE_DEFAULT 0x80
97 #define NDIS_OBJTYPE_RSS_CAPS 0x88
98 #define NDIS_OBJTYPE_RSS_PARAMS 0x89
99 #define NDIS_OBJTYPE_OFFLOAD 0xa7
100
101 struct ndis_object_hdr {
102 uint8_t ndis_type; /* NDIS_OBJTYPE_ */
103 uint8_t ndis_rev; /* type specific */
104 uint16_t ndis_size; /* incl. this hdr */
105 };
106
107 /*
108 * OID_TCP_OFFLOAD_PARAMETERS
109 * ndis_type: NDIS_OBJTYPE_DEFAULT
110 */
111 struct ndis_offload_params {
112 struct ndis_object_hdr ndis_hdr;
113 uint8_t ndis_ip4csum; /* NDIS_OFFLOAD_PARAM_ */
114 uint8_t ndis_tcp4csum; /* NDIS_OFFLOAD_PARAM_ */
115 uint8_t ndis_udp4csum; /* NDIS_OFFLOAD_PARAM_ */
116 uint8_t ndis_tcp6csum; /* NDIS_OFFLOAD_PARAM_ */
117 uint8_t ndis_udp6csum; /* NDIS_OFFLOAD_PARAM_ */
118 uint8_t ndis_lsov1; /* NDIS_OFFLOAD_PARAM_ */
119 uint8_t ndis_ipsecv1; /* NDIS_OFFLOAD_IPSECV1_ */
120 uint8_t ndis_lsov2_ip4; /* NDIS_OFFLOAD_LSOV2_ */
121 uint8_t ndis_lsov2_ip6; /* NDIS_OFFLOAD_LSOV2_ */
122 uint8_t ndis_tcp4conn; /* 0 */
123 uint8_t ndis_tcp6conn; /* 0 */
124 uint32_t ndis_flags; /* 0 */
125 /* NDIS >= 6.1 */
126 uint8_t ndis_ipsecv2; /* NDIS_OFFLOAD_IPSECV2_ */
127 uint8_t ndis_ipsecv2_ip4;/* NDIS_OFFLOAD_IPSECV2_ */
128 /* NDIS >= 6.30 */
129 uint8_t ndis_rsc_ip4; /* NDIS_OFFLOAD_RSC_ */
130 uint8_t ndis_rsc_ip6; /* NDIS_OFFLOAD_RSC_ */
131 uint8_t ndis_encap; /* NDIS_OFFLOAD_SET_ */
132 uint8_t ndis_encap_types;/* NDIS_ENCAP_TYPE_ */
133 };
134
135 #define NDIS_OFFLOAD_PARAMS_SIZE sizeof(struct ndis_offload_params)
136 #define NDIS_OFFLOAD_PARAMS_SIZE_6_1 \
137 offsetof(struct ndis_offload_params, ndis_rsc_ip4)
138
139 #define NDIS_OFFLOAD_PARAMS_REV_2 2 /* NDIS 6.1 */
140 #define NDIS_OFFLOAD_PARAMS_REV_3 3 /* NDIS 6.30 */
141
142 #define NDIS_OFFLOAD_PARAM_NOCHG 0 /* common */
143 #define NDIS_OFFLOAD_PARAM_OFF 1
144 #define NDIS_OFFLOAD_PARAM_TX 2
145 #define NDIS_OFFLOAD_PARAM_RX 3
146 #define NDIS_OFFLOAD_PARAM_TXRX 4
147
148 /* NDIS_OFFLOAD_PARAM_NOCHG */
149 #define NDIS_OFFLOAD_LSOV1_OFF 1
150 #define NDIS_OFFLOAD_LSOV1_ON 2
151
152 /* NDIS_OFFLOAD_PARAM_NOCHG */
153 #define NDIS_OFFLOAD_IPSECV1_OFF 1
154 #define NDIS_OFFLOAD_IPSECV1_AH 2
155 #define NDIS_OFFLOAD_IPSECV1_ESP 3
156 #define NDIS_OFFLOAD_IPSECV1_AH_ESP 4
157
158 /* NDIS_OFFLOAD_PARAM_NOCHG */
159 #define NDIS_OFFLOAD_LSOV2_OFF 1
160 #define NDIS_OFFLOAD_LSOV2_ON 2
161
162 /* NDIS_OFFLOAD_PARAM_NOCHG */
163 #define NDIS_OFFLOAD_IPSECV2_OFF 1
164 #define NDIS_OFFLOAD_IPSECV2_AH 2
165 #define NDIS_OFFLOAD_IPSECV2_ESP 3
166 #define NDIS_OFFLOAD_IPSECV2_AH_ESP 4
167
168 /* NDIS_OFFLOAD_PARAM_NOCHG */
169 #define NDIS_OFFLOAD_RSC_OFF 1
170 #define NDIS_OFFLOAD_RSC_ON 2
171
172 /*
173 * OID_GEN_RECEIVE_SCALE_CAPABILITIES
174 * ndis_type: NDIS_OBJTYPE_RSS_CAPS
175 */
176 struct ndis_rss_caps {
177 struct ndis_object_hdr ndis_hdr;
178 uint32_t ndis_caps; /* NDIS_RSS_CAP_ */
179 uint32_t ndis_nmsi; /* # of MSIs */
180 uint32_t ndis_nrxr; /* # of RX rings */
181 /* NDIS >= 6.30 */
182 uint16_t ndis_nind; /* # of indtbl ent. */
183 uint16_t ndis_pad;
184 };
185
186 #define NDIS_RSS_CAPS_SIZE \
187 offsetof(struct ndis_rss_caps, ndis_pad)
188 #define NDIS_RSS_CAPS_SIZE_6_0 \
189 offsetof(struct ndis_rss_caps, ndis_nind)
190
191 #define NDIS_RSS_CAPS_REV_1 1 /* NDIS 6.{0,1,20} */
192 #define NDIS_RSS_CAPS_REV_2 2 /* NDIS 6.30 */
193
194 #define NDIS_RSS_CAP_MSI 0x01000000
195 #define NDIS_RSS_CAP_CLASSIFY_ISR 0x02000000
196 #define NDIS_RSS_CAP_CLASSIFY_DPC 0x04000000
197 #define NDIS_RSS_CAP_MSIX 0x08000000
198 #define NDIS_RSS_CAP_IPV4 0x00000100
199 #define NDIS_RSS_CAP_IPV6 0x00000200
200 #define NDIS_RSS_CAP_IPV6_EX 0x00000400
201 #define NDIS_RSS_CAP_HASH_TOEPLITZ NDIS_HASH_FUNCTION_TOEPLITZ
202 #define NDIS_RSS_CAP_HASHFUNC_MASK NDIS_HASH_FUNCTION_MASK
203
204 /*
205 * OID_GEN_RECEIVE_SCALE_PARAMETERS
206 * ndis_type: NDIS_OBJTYPE_RSS_PARAMS
207 */
208 struct ndis_rss_params {
209 struct ndis_object_hdr ndis_hdr;
210 uint16_t ndis_flags; /* NDIS_RSS_FLAG_ */
211 uint16_t ndis_bcpu; /* base cpu 0 */
212 uint32_t ndis_hash; /* NDIS_HASH_ */
213 uint16_t ndis_indsize; /* indirect table */
214 uint32_t ndis_indoffset;
215 uint16_t ndis_keysize; /* hash key */
216 uint32_t ndis_keyoffset;
217 /* NDIS >= 6.20 */
218 uint32_t ndis_cpumaskoffset;
219 uint32_t ndis_cpumaskcnt;
220 uint32_t ndis_cpumaskentsz;
221 };
222
223 #define NDIS_RSS_PARAMS_SIZE sizeof(struct ndis_rss_params)
224 #define NDIS_RSS_PARAMS_SIZE_6_0 \
225 offsetof(struct ndis_rss_params, ndis_cpumaskoffset)
226
227 #define NDIS_RSS_PARAMS_REV_1 1 /* NDIS 6.0 */
228 #define NDIS_RSS_PARAMS_REV_2 2 /* NDIS 6.20 */
229
230 #define NDIS_RSS_FLAG_NONE 0x0000
231 #define NDIS_RSS_FLAG_BCPU_UNCHG 0x0001
232 #define NDIS_RSS_FLAG_HASH_UNCHG 0x0002
233 #define NDIS_RSS_FLAG_IND_UNCHG 0x0004
234 #define NDIS_RSS_FLAG_KEY_UNCHG 0x0008
235 #define NDIS_RSS_FLAG_DISABLE 0x0010
236
237 /* non-standard convenient struct */
238 struct ndis_rssprm_toeplitz {
239 struct ndis_rss_params rss_params;
240 /* Toeplitz hash key */
241 uint8_t rss_key[NDIS_HASH_KEYSIZE_TOEPLITZ];
242 /* Indirect table */
243 uint32_t rss_ind[NDIS_HASH_INDCNT];
244 };
245
246 #define NDIS_RSSPRM_TOEPLITZ_SIZE(nind) \
247 offsetof(struct ndis_rssprm_toeplitz, rss_ind[nind])
248
249 /*
250 * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES
251 * ndis_type: NDIS_OBJTYPE_OFFLOAD
252 */
253
254 #define NDIS_OFFLOAD_ENCAP_NONE 0x0000
255 #define NDIS_OFFLOAD_ENCAP_NULL 0x0001
256 #define NDIS_OFFLOAD_ENCAP_8023 0x0002
257 #define NDIS_OFFLOAD_ENCAP_8023PQ 0x0004
258 #define NDIS_OFFLOAD_ENCAP_8023PQ_OOB 0x0008
259 #define NDIS_OFFLOAD_ENCAP_RFC1483 0x0010
260
261 struct ndis_csum_offload {
262 uint32_t ndis_ip4_txenc; /*NDIS_OFFLOAD_ENCAP_*/
263 uint32_t ndis_ip4_txcsum;
264 #define NDIS_TXCSUM_CAP_IP4OPT 0x001
265 #define NDIS_TXCSUM_CAP_TCP4OPT 0x004
266 #define NDIS_TXCSUM_CAP_TCP4 0x010
267 #define NDIS_TXCSUM_CAP_UDP4 0x040
268 #define NDIS_TXCSUM_CAP_IP4 0x100
269 uint32_t ndis_ip4_rxenc; /*NDIS_OFFLOAD_ENCAP_*/
270 uint32_t ndis_ip4_rxcsum;
271 #define NDIS_RXCSUM_CAP_IP4OPT 0x001
272 #define NDIS_RXCSUM_CAP_TCP4OPT 0x004
273 #define NDIS_RXCSUM_CAP_TCP4 0x010
274 #define NDIS_RXCSUM_CAP_UDP4 0x040
275 #define NDIS_RXCSUM_CAP_IP4 0x100
276 uint32_t ndis_ip6_txenc; /*NDIS_OFFLOAD_ENCAP_*/
277 uint32_t ndis_ip6_txcsum;
278 #define NDIS_TXCSUM_CAP_IP6EXT 0x001
279 #define NDIS_TXCSUM_CAP_TCP6OPT 0x004
280 #define NDIS_TXCSUM_CAP_TCP6 0x010
281 #define NDIS_TXCSUM_CAP_UDP6 0x040
282 uint32_t ndis_ip6_rxenc; /*NDIS_OFFLOAD_ENCAP_*/
283 uint32_t ndis_ip6_rxcsum;
284 #define NDIS_RXCSUM_CAP_IP6EXT 0x001
285 #define NDIS_RXCSUM_CAP_TCP6OPT 0x004
286 #define NDIS_RXCSUM_CAP_TCP6 0x010
287 #define NDIS_RXCSUM_CAP_UDP6 0x040
288 };
289
290 struct ndis_lsov1_offload {
291 uint32_t ndis_encap; /*NDIS_OFFLOAD_ENCAP_*/
292 uint32_t ndis_maxsize;
293 uint32_t ndis_minsegs;
294 uint32_t ndis_opts;
295 };
296
297 struct ndis_ipsecv1_offload {
298 uint32_t ndis_encap; /*NDIS_OFFLOAD_ENCAP_*/
299 uint32_t ndis_ah_esp;
300 uint32_t ndis_xport_tun;
301 uint32_t ndis_ip4_opts;
302 uint32_t ndis_flags;
303 uint32_t ndis_ip4_ah;
304 uint32_t ndis_ip4_esp;
305 };
306
307 struct ndis_lsov2_offload {
308 uint32_t ndis_ip4_encap; /*NDIS_OFFLOAD_ENCAP_*/
309 uint32_t ndis_ip4_maxsz;
310 uint32_t ndis_ip4_minsg;
311 uint32_t ndis_ip6_encap; /*NDIS_OFFLOAD_ENCAP_*/
312 uint32_t ndis_ip6_maxsz;
313 uint32_t ndis_ip6_minsg;
314 uint32_t ndis_ip6_opts;
315 #define NDIS_LSOV2_CAP_IP6EXT 0x001
316 #define NDIS_LSOV2_CAP_TCP6OPT 0x004
317 };
318
319 struct ndis_ipsecv2_offload {
320 uint32_t ndis_encap; /*NDIS_OFFLOAD_ENCAP_*/
321 uint16_t ndis_ip6;
322 uint16_t ndis_ip4opt;
323 uint16_t ndis_ip6ext;
324 uint16_t ndis_ah;
325 uint16_t ndis_esp;
326 uint16_t ndis_ah_esp;
327 uint16_t ndis_xport;
328 uint16_t ndis_tun;
329 uint16_t ndis_xport_tun;
330 uint16_t ndis_lso;
331 uint16_t ndis_extseq;
332 uint32_t ndis_udp_esp;
333 uint32_t ndis_auth;
334 uint32_t ndis_crypto;
335 uint32_t ndis_sa_caps;
336 };
337
338 struct ndis_rsc_offload {
339 uint16_t ndis_ip4;
340 uint16_t ndis_ip6;
341 };
342
343 struct ndis_encap_offload {
344 uint32_t ndis_flags;
345 uint32_t ndis_maxhdr;
346 };
347
348 struct ndis_offload {
349 struct ndis_object_hdr ndis_hdr;
350 struct ndis_csum_offload ndis_csum;
351 struct ndis_lsov1_offload ndis_lsov1;
352 struct ndis_ipsecv1_offload ndis_ipsecv1;
353 struct ndis_lsov2_offload ndis_lsov2;
354 uint32_t ndis_flags;
355 /* NDIS >= 6.1 */
356 struct ndis_ipsecv2_offload ndis_ipsecv2;
357 /* NDIS >= 6.30 */
358 struct ndis_rsc_offload ndis_rsc;
359 struct ndis_encap_offload ndis_encap_gre;
360 };
361
362 #define NDIS_OFFLOAD_SIZE sizeof(struct ndis_offload)
363 #define NDIS_OFFLOAD_SIZE_6_0 \
364 offsetof(struct ndis_offload, ndis_ipsecv2)
365 #define NDIS_OFFLOAD_SIZE_6_1 \
366 offsetof(struct ndis_offload, ndis_rsc)
367
368 #define NDIS_OFFLOAD_REV_1 1 /* NDIS 6.0 */
369 #define NDIS_OFFLOAD_REV_2 2 /* NDIS 6.1 */
370 #define NDIS_OFFLOAD_REV_3 3 /* NDIS 6.30 */
371
372 /*
373 * Per-packet-info
374 */
375
376 /* VLAN */
377 #define NDIS_VLAN_INFO_SIZE sizeof(uint32_t)
378 #define NDIS_VLAN_INFO_PRI_MASK 0x0007
379 #define NDIS_VLAN_INFO_CFI_MASK 0x0008
380 #define NDIS_VLAN_INFO_ID_MASK 0xfff0
381 #define NDIS_VLAN_INFO_MAKE(id, pri, cfi) \
382 (((pri) & NDIS_VLAN_INFO_PRI_MASK) | \
383 (((cfi) & 0x1) << 3) | (((id) & 0xfff) << 4))
384 #define NDIS_VLAN_INFO_ID(inf) (((inf) & NDIS_VLAN_INFO_ID_MASK) >> 4)
385 #define NDIS_VLAN_INFO_CFI(inf) (((inf) & NDIS_VLAN_INFO_CFI_MASK) >> 3)
386 #define NDIS_VLAN_INFO_PRI(inf) ((inf) & NDIS_VLAN_INFO_PRI_MASK)
387
388 /* Reception checksum */
389 #define NDIS_RXCSUM_INFO_SIZE sizeof(uint32_t)
390 #define NDIS_RXCSUM_INFO_TCPCS_FAILED 0x0001
391 #define NDIS_RXCSUM_INFO_UDPCS_FAILED 0x0002
392 #define NDIS_RXCSUM_INFO_IPCS_FAILED 0x0004
393 #define NDIS_RXCSUM_INFO_TCPCS_OK 0x0008
394 #define NDIS_RXCSUM_INFO_UDPCS_OK 0x0010
395 #define NDIS_RXCSUM_INFO_IPCS_OK 0x0020
396 #define NDIS_RXCSUM_INFO_LOOPBACK 0x0040
397 #define NDIS_RXCSUM_INFO_TCPCS_INVAL 0x0080
398 #define NDIS_RXCSUM_INFO_IPCS_INVAL 0x0100
399
400 /* LSOv2 */
401 #define NDIS_LSO2_INFO_SIZE sizeof(uint32_t)
402 #define NDIS_LSO2_INFO_MSS_MASK 0x000fffff
403 #define NDIS_LSO2_INFO_THOFF_MASK 0x3ff00000
404 #define NDIS_LSO2_INFO_ISLSO2 0x40000000
405 #define NDIS_LSO2_INFO_ISIPV6 0x80000000
406
407 #define NDIS_LSO2_INFO_MAKE(thoff, mss) \
408 ((((uint32_t)(mss)) & NDIS_LSO2_INFO_MSS_MASK) | \
409 ((((uint32_t)(thoff)) & 0x3ff) << 20) | \
410 NDIS_LSO2_INFO_ISLSO2)
411
412 #define NDIS_LSO2_INFO_MAKEIPV4(thoff, mss) \
413 NDIS_LSO2_INFO_MAKE((thoff), (mss))
414
415 #define NDIS_LSO2_INFO_MAKEIPV6(thoff, mss) \
416 (NDIS_LSO2_INFO_MAKE((thoff), (mss)) | NDIS_LSO2_INFO_ISIPV6)
417
418 /* Transmission checksum */
419 #define NDIS_TXCSUM_INFO_SIZE sizeof(uint32_t)
420 #define NDIS_TXCSUM_INFO_IPV4 0x00000001
421 #define NDIS_TXCSUM_INFO_IPV6 0x00000002
422 #define NDIS_TXCSUM_INFO_TCPCS 0x00000004
423 #define NDIS_TXCSUM_INFO_UDPCS 0x00000008
424 #define NDIS_TXCSUM_INFO_IPCS 0x00000010
425 #define NDIS_TXCSUM_INFO_THOFF 0x03ff0000
426
427 #define NDIS_TXCSUM_INFO_MKL4CS(thoff, flag) \
428 ((((uint32_t)(thoff)) << 16) | (flag))
429
430 #define NDIS_TXCSUM_INFO_MKTCPCS(thoff) \
431 NDIS_TXCSUM_INFO_MKL4CS((thoff), NDIS_TXCSUM_INFO_TCPCS)
432
433 #define NDIS_TXCSUM_INFO_MKUDPCS(thoff) \
434 NDIS_TXCSUM_INFO_MKL4CS((thoff), NDIS_TXCSUM_INFO_UDPCS)
435
436 #endif /* !_DEV_IC_NDIS_H_ */
437