xref: /freebsd/sys/dev/hyperv/netvsc/ndis.h (revision 094fc1ed0f2627525c7b0342efcbad5be7a8546a)
1 /*-
2  * Copyright (c) 2016-2017 Microsoft Corp.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice unmodified, this list of conditions, and the following
10  *    disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _NET_NDIS_H_
30 #define _NET_NDIS_H_
31 
32 #define	NDIS_MEDIA_STATE_CONNECTED	0
33 #define	NDIS_MEDIA_STATE_DISCONNECTED	1
34 
35 #define	NDIS_NETCHANGE_TYPE_POSSIBLE	1
36 #define	NDIS_NETCHANGE_TYPE_DEFINITE	2
37 #define	NDIS_NETCHANGE_TYPE_FROMMEDIA	3
38 
39 #define	NDIS_OFFLOAD_SET_NOCHG		0
40 #define	NDIS_OFFLOAD_SET_ON		1
41 #define	NDIS_OFFLOAD_SET_OFF		2
42 
43 /* a.k.a GRE MAC */
44 #define	NDIS_ENCAP_TYPE_NVGRE		0x00000001
45 
46 #define	NDIS_HASH_FUNCTION_MASK		0x000000FF	/* see hash function */
47 #define	NDIS_HASH_TYPE_MASK		0x00FFFF00	/* see hash type */
48 
49 /* hash function */
50 #define	NDIS_HASH_FUNCTION_TOEPLITZ	0x00000001
51 
52 /* hash type */
53 #define	NDIS_HASH_IPV4			0x00000100
54 #define	NDIS_HASH_TCP_IPV4		0x00000200
55 #define	NDIS_HASH_IPV6			0x00000400
56 #define	NDIS_HASH_IPV6_EX		0x00000800
57 #define	NDIS_HASH_TCP_IPV6		0x00001000
58 #define	NDIS_HASH_TCP_IPV6_EX		0x00002000
59 
60 #define	NDIS_HASH_ALL			(NDIS_HASH_IPV4 |	\
61 					 NDIS_HASH_TCP_IPV4 |	\
62 					 NDIS_HASH_IPV6 |	\
63 					 NDIS_HASH_IPV6_EX |	\
64 					 NDIS_HASH_TCP_IPV6 |	\
65 					 NDIS_HASH_TCP_IPV6_EX)
66 
67 /* Hash description for use with printf(9) %b identifier. */
68 #define	NDIS_HASH_BITS			\
69 	"\20\1TOEPLITZ\11IP4\12TCP4\13IP6\14IP6EX\15TCP6\16TCP6EX"
70 
71 #define	NDIS_HASH_KEYSIZE_TOEPLITZ	40
72 #define	NDIS_HASH_INDCNT		128
73 
74 #define	NDIS_OBJTYPE_DEFAULT		0x80
75 #define	NDIS_OBJTYPE_RSS_CAPS		0x88
76 #define	NDIS_OBJTYPE_RSS_PARAMS		0x89
77 #define	NDIS_OBJTYPE_OFFLOAD		0xa7
78 
79 struct ndis_object_hdr {
80 	uint8_t			ndis_type;	/* NDIS_OBJTYPE_ */
81 	uint8_t			ndis_rev;	/* type specific */
82 	uint16_t		ndis_size;	/* incl. this hdr */
83 };
84 
85 /*
86  * OID_TCP_OFFLOAD_PARAMETERS
87  * ndis_type: NDIS_OBJTYPE_DEFAULT
88  */
89 struct ndis_offload_params {
90 	struct ndis_object_hdr	ndis_hdr;
91 	uint8_t			ndis_ip4csum;	/* NDIS_OFFLOAD_PARAM_ */
92 	uint8_t			ndis_tcp4csum;	/* NDIS_OFFLOAD_PARAM_ */
93 	uint8_t			ndis_udp4csum;	/* NDIS_OFFLOAD_PARAM_ */
94 	uint8_t			ndis_tcp6csum;	/* NDIS_OFFLOAD_PARAM_ */
95 	uint8_t			ndis_udp6csum;	/* NDIS_OFFLOAD_PARAM_ */
96 	uint8_t			ndis_lsov1;	/* NDIS_OFFLOAD_PARAM_ */
97 	uint8_t			ndis_ipsecv1;	/* NDIS_OFFLOAD_IPSECV1_ */
98 	uint8_t			ndis_lsov2_ip4;	/* NDIS_OFFLOAD_LSOV2_ */
99 	uint8_t			ndis_lsov2_ip6;	/* NDIS_OFFLOAD_LSOV2_ */
100 	uint8_t			ndis_tcp4conn;	/* 0 */
101 	uint8_t			ndis_tcp6conn;	/* 0 */
102 	uint32_t		ndis_flags;	/* 0 */
103 	/* NDIS >= 6.1 */
104 	uint8_t			ndis_ipsecv2;	/* NDIS_OFFLOAD_IPSECV2_ */
105 	uint8_t			ndis_ipsecv2_ip4;/* NDIS_OFFLOAD_IPSECV2_ */
106 	/* NDIS >= 6.30 */
107 	uint8_t			ndis_rsc_ip4;	/* NDIS_OFFLOAD_RSC_ */
108 	uint8_t			ndis_rsc_ip6;	/* NDIS_OFFLOAD_RSC_ */
109 	uint8_t			ndis_encap;	/* NDIS_OFFLOAD_SET_ */
110 	uint8_t			ndis_encap_types;/* NDIS_ENCAP_TYPE_ */
111 };
112 
113 #define	NDIS_OFFLOAD_PARAMS_SIZE	sizeof(struct ndis_offload_params)
114 #define	NDIS_OFFLOAD_PARAMS_SIZE_6_1	\
115 	__offsetof(struct ndis_offload_params, ndis_rsc_ip4)
116 
117 #define	NDIS_OFFLOAD_PARAMS_REV_2	2	/* NDIS 6.1 */
118 #define	NDIS_OFFLOAD_PARAMS_REV_3	3	/* NDIS 6.30 */
119 
120 #define	NDIS_OFFLOAD_PARAM_NOCHG	0	/* common */
121 #define	NDIS_OFFLOAD_PARAM_OFF		1
122 #define	NDIS_OFFLOAD_PARAM_TX		2
123 #define	NDIS_OFFLOAD_PARAM_RX		3
124 #define	NDIS_OFFLOAD_PARAM_TXRX		4
125 
126 /* NDIS_OFFLOAD_PARAM_NOCHG */
127 #define	NDIS_OFFLOAD_LSOV1_OFF		1
128 #define	NDIS_OFFLOAD_LSOV1_ON		2
129 
130 /* NDIS_OFFLOAD_PARAM_NOCHG */
131 #define	NDIS_OFFLOAD_IPSECV1_OFF	1
132 #define	NDIS_OFFLOAD_IPSECV1_AH		2
133 #define	NDIS_OFFLOAD_IPSECV1_ESP	3
134 #define	NDIS_OFFLOAD_IPSECV1_AH_ESP	4
135 
136 /* NDIS_OFFLOAD_PARAM_NOCHG */
137 #define	NDIS_OFFLOAD_LSOV2_OFF		1
138 #define	NDIS_OFFLOAD_LSOV2_ON		2
139 
140 /* NDIS_OFFLOAD_PARAM_NOCHG */
141 #define	NDIS_OFFLOAD_IPSECV2_OFF	1
142 #define	NDIS_OFFLOAD_IPSECV2_AH		2
143 #define	NDIS_OFFLOAD_IPSECV2_ESP	3
144 #define	NDIS_OFFLOAD_IPSECV2_AH_ESP	4
145 
146 /* NDIS_OFFLOAD_PARAM_NOCHG */
147 #define	NDIS_OFFLOAD_RSC_OFF		1
148 #define	NDIS_OFFLOAD_RSC_ON		2
149 
150 /*
151  * OID_GEN_RECEIVE_SCALE_CAPABILITIES
152  * ndis_type: NDIS_OBJTYPE_RSS_CAPS
153  */
154 struct ndis_rss_caps {
155 	struct ndis_object_hdr		ndis_hdr;
156 	uint32_t			ndis_caps;	/* NDIS_RSS_CAP_ */
157 	uint32_t			ndis_nmsi;	/* # of MSIs */
158 	uint32_t			ndis_nrxr;	/* # of RX rings */
159 	/* NDIS >= 6.30 */
160 	uint16_t			ndis_nind;	/* # of indtbl ent. */
161 	uint16_t			ndis_pad;
162 };
163 
164 #define	NDIS_RSS_CAPS_SIZE		\
165 	__offsetof(struct ndis_rss_caps, ndis_pad)
166 #define	NDIS_RSS_CAPS_SIZE_6_0		\
167 	__offsetof(struct ndis_rss_caps, ndis_nind)
168 
169 #define	NDIS_RSS_CAPS_REV_1		1	/* NDIS 6.{0,1,20} */
170 #define	NDIS_RSS_CAPS_REV_2		2	/* NDIS 6.30 */
171 
172 #define	NDIS_RSS_CAP_MSI		0x01000000
173 #define	NDIS_RSS_CAP_CLASSIFY_ISR	0x02000000
174 #define	NDIS_RSS_CAP_CLASSIFY_DPC	0x04000000
175 #define	NDIS_RSS_CAP_MSIX		0x08000000
176 #define	NDIS_RSS_CAP_IPV4		0x00000100
177 #define	NDIS_RSS_CAP_IPV6		0x00000200
178 #define	NDIS_RSS_CAP_IPV6_EX		0x00000400
179 #define	NDIS_RSS_CAP_HASH_TOEPLITZ	NDIS_HASH_FUNCTION_TOEPLITZ
180 #define	NDIS_RSS_CAP_HASHFUNC_MASK	NDIS_HASH_FUNCTION_MASK
181 
182 /*
183  * OID_GEN_RECEIVE_SCALE_PARAMETERS
184  * ndis_type: NDIS_OBJTYPE_RSS_PARAMS
185  */
186 struct ndis_rss_params {
187 	struct ndis_object_hdr		ndis_hdr;
188 	uint16_t			ndis_flags;	/* NDIS_RSS_FLAG_ */
189 	uint16_t			ndis_bcpu;	/* base cpu 0 */
190 	uint32_t			ndis_hash;	/* NDIS_HASH_ */
191 	uint16_t			ndis_indsize;	/* indirect table */
192 	uint32_t			ndis_indoffset;
193 	uint16_t			ndis_keysize;	/* hash key */
194 	uint32_t			ndis_keyoffset;
195 	/* NDIS >= 6.20 */
196 	uint32_t			ndis_cpumaskoffset;
197 	uint32_t			ndis_cpumaskcnt;
198 	uint32_t			ndis_cpumaskentsz;
199 };
200 
201 #define	NDIS_RSS_PARAMS_SIZE		sizeof(struct ndis_rss_params)
202 #define	NDIS_RSS_PARAMS_SIZE_6_0	\
203 	__offsetof(struct ndis_rss_params, ndis_cpumaskoffset)
204 
205 #define	NDIS_RSS_PARAMS_REV_1		1	/* NDIS 6.0 */
206 #define	NDIS_RSS_PARAMS_REV_2		2	/* NDIS 6.20 */
207 
208 #define	NDIS_RSS_FLAG_NONE		0x0000
209 #define	NDIS_RSS_FLAG_BCPU_UNCHG	0x0001
210 #define	NDIS_RSS_FLAG_HASH_UNCHG	0x0002
211 #define	NDIS_RSS_FLAG_IND_UNCHG		0x0004
212 #define	NDIS_RSS_FLAG_KEY_UNCHG		0x0008
213 #define	NDIS_RSS_FLAG_DISABLE		0x0010
214 
215 /* non-standard convenient struct */
216 struct ndis_rssprm_toeplitz {
217 	struct ndis_rss_params		rss_params;
218 	/* Toeplitz hash key */
219 	uint8_t				rss_key[NDIS_HASH_KEYSIZE_TOEPLITZ];
220 	/* Indirect table */
221 	uint32_t			rss_ind[NDIS_HASH_INDCNT];
222 };
223 
224 #define	NDIS_RSSPRM_TOEPLITZ_SIZE(nind)	\
225 	__offsetof(struct ndis_rssprm_toeplitz, rss_ind[nind])
226 
227 /*
228  * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES
229  * ndis_type: NDIS_OBJTYPE_OFFLOAD
230  */
231 
232 #define	NDIS_OFFLOAD_ENCAP_NONE		0x0000
233 #define	NDIS_OFFLOAD_ENCAP_NULL		0x0001
234 #define	NDIS_OFFLOAD_ENCAP_8023		0x0002
235 #define	NDIS_OFFLOAD_ENCAP_8023PQ	0x0004
236 #define	NDIS_OFFLOAD_ENCAP_8023PQ_OOB	0x0008
237 #define	NDIS_OFFLOAD_ENCAP_RFC1483	0x0010
238 
239 struct ndis_csum_offload {
240 	uint32_t			ndis_ip4_txenc;	/*NDIS_OFFLOAD_ENCAP_*/
241 	uint32_t			ndis_ip4_txcsum;
242 #define	NDIS_TXCSUM_CAP_IP4OPT		0x001
243 #define	NDIS_TXCSUM_CAP_TCP4OPT		0x004
244 #define	NDIS_TXCSUM_CAP_TCP4		0x010
245 #define	NDIS_TXCSUM_CAP_UDP4		0x040
246 #define	NDIS_TXCSUM_CAP_IP4		0x100
247 	uint32_t			ndis_ip4_rxenc;	/*NDIS_OFFLOAD_ENCAP_*/
248 	uint32_t			ndis_ip4_rxcsum;
249 #define	NDIS_RXCSUM_CAP_IP4OPT		0x001
250 #define	NDIS_RXCSUM_CAP_TCP4OPT		0x004
251 #define	NDIS_RXCSUM_CAP_TCP4		0x010
252 #define	NDIS_RXCSUM_CAP_UDP4		0x040
253 #define	NDIS_RXCSUM_CAP_IP4		0x100
254 	uint32_t			ndis_ip6_txenc;	/*NDIS_OFFLOAD_ENCAP_*/
255 	uint32_t			ndis_ip6_txcsum;
256 #define	NDIS_TXCSUM_CAP_IP6EXT		0x001
257 #define	NDIS_TXCSUM_CAP_TCP6OPT		0x004
258 #define	NDIS_TXCSUM_CAP_TCP6		0x010
259 #define	NDIS_TXCSUM_CAP_UDP6		0x040
260 	uint32_t			ndis_ip6_rxenc;	/*NDIS_OFFLOAD_ENCAP_*/
261 	uint32_t			ndis_ip6_rxcsum;
262 #define	NDIS_RXCSUM_CAP_IP6EXT		0x001
263 #define	NDIS_RXCSUM_CAP_TCP6OPT		0x004
264 #define	NDIS_RXCSUM_CAP_TCP6		0x010
265 #define	NDIS_RXCSUM_CAP_UDP6		0x040
266 };
267 
268 struct ndis_lsov1_offload {
269 	uint32_t			ndis_encap;	/*NDIS_OFFLOAD_ENCAP_*/
270 	uint32_t			ndis_maxsize;
271 	uint32_t			ndis_minsegs;
272 	uint32_t			ndis_opts;
273 };
274 
275 struct ndis_ipsecv1_offload {
276 	uint32_t			ndis_encap;	/*NDIS_OFFLOAD_ENCAP_*/
277 	uint32_t			ndis_ah_esp;
278 	uint32_t			ndis_xport_tun;
279 	uint32_t			ndis_ip4_opts;
280 	uint32_t			ndis_flags;
281 	uint32_t			ndis_ip4_ah;
282 	uint32_t			ndis_ip4_esp;
283 };
284 
285 struct ndis_lsov2_offload {
286 	uint32_t			ndis_ip4_encap;	/*NDIS_OFFLOAD_ENCAP_*/
287 	uint32_t			ndis_ip4_maxsz;
288 	uint32_t			ndis_ip4_minsg;
289 	uint32_t			ndis_ip6_encap;	/*NDIS_OFFLOAD_ENCAP_*/
290 	uint32_t			ndis_ip6_maxsz;
291 	uint32_t			ndis_ip6_minsg;
292 	uint32_t			ndis_ip6_opts;
293 #define	NDIS_LSOV2_CAP_IP6EXT		0x001
294 #define	NDIS_LSOV2_CAP_TCP6OPT		0x004
295 };
296 
297 struct ndis_ipsecv2_offload {
298 	uint32_t			ndis_encap;	/*NDIS_OFFLOAD_ENCAP_*/
299 	uint16_t			ndis_ip6;
300 	uint16_t			ndis_ip4opt;
301 	uint16_t			ndis_ip6ext;
302 	uint16_t			ndis_ah;
303 	uint16_t			ndis_esp;
304 	uint16_t			ndis_ah_esp;
305 	uint16_t			ndis_xport;
306 	uint16_t			ndis_tun;
307 	uint16_t			ndis_xport_tun;
308 	uint16_t			ndis_lso;
309 	uint16_t			ndis_extseq;
310 	uint32_t			ndis_udp_esp;
311 	uint32_t			ndis_auth;
312 	uint32_t			ndis_crypto;
313 	uint32_t			ndis_sa_caps;
314 };
315 
316 struct ndis_rsc_offload {
317 	uint16_t			ndis_ip4;
318 	uint16_t			ndis_ip6;
319 };
320 
321 struct ndis_encap_offload {
322 	uint32_t			ndis_flags;
323 	uint32_t			ndis_maxhdr;
324 };
325 
326 struct ndis_offload {
327 	struct ndis_object_hdr		ndis_hdr;
328 	struct ndis_csum_offload	ndis_csum;
329 	struct ndis_lsov1_offload	ndis_lsov1;
330 	struct ndis_ipsecv1_offload	ndis_ipsecv1;
331 	struct ndis_lsov2_offload	ndis_lsov2;
332 	uint32_t			ndis_flags;
333 	/* NDIS >= 6.1 */
334 	struct ndis_ipsecv2_offload	ndis_ipsecv2;
335 	/* NDIS >= 6.30 */
336 	struct ndis_rsc_offload		ndis_rsc;
337 	struct ndis_encap_offload	ndis_encap_gre;
338 };
339 
340 #define	NDIS_OFFLOAD_SIZE		sizeof(struct ndis_offload)
341 #define	NDIS_OFFLOAD_SIZE_6_0		\
342 	__offsetof(struct ndis_offload, ndis_ipsecv2)
343 #define	NDIS_OFFLOAD_SIZE_6_1		\
344 	__offsetof(struct ndis_offload, ndis_rsc)
345 
346 #define	NDIS_OFFLOAD_REV_1		1	/* NDIS 6.0 */
347 #define	NDIS_OFFLOAD_REV_2		2	/* NDIS 6.1 */
348 #define	NDIS_OFFLOAD_REV_3		3	/* NDIS 6.30 */
349 
350 /*
351  * Per-packet-info
352  */
353 
354 /* VLAN */
355 #define	NDIS_VLAN_INFO_SIZE		sizeof(uint32_t)
356 #define	NDIS_VLAN_INFO_PRI_MASK		0x0007
357 #define	NDIS_VLAN_INFO_CFI_MASK		0x0008
358 #define	NDIS_VLAN_INFO_ID_MASK		0xfff0
359 #define	NDIS_VLAN_INFO_MAKE(id, pri, cfi)	\
360         (((pri) & NDIS_VLAN_INFO_PRI_MASK) |	\
361 	 (((cfi) & 0x1) << 3) | (((id) & 0xfff) << 4))
362 #define	NDIS_VLAN_INFO_ID(inf)		(((inf) & NDIS_VLAN_INFO_ID_MASK) >> 4)
363 #define	NDIS_VLAN_INFO_CFI(inf)		(((inf) & NDIS_VLAN_INFO_CFI_MASK) >> 3)
364 #define	NDIS_VLAN_INFO_PRI(inf)		((inf) & NDIS_VLAN_INFO_PRI_MASK)
365 
366 /* Reception checksum */
367 #define	NDIS_RXCSUM_INFO_SIZE		sizeof(uint32_t)
368 #define	NDIS_RXCSUM_INFO_TCPCS_FAILED	0x0001
369 #define	NDIS_RXCSUM_INFO_UDPCS_FAILED	0x0002
370 #define	NDIS_RXCSUM_INFO_IPCS_FAILED	0x0004
371 #define	NDIS_RXCSUM_INFO_TCPCS_OK	0x0008
372 #define	NDIS_RXCSUM_INFO_UDPCS_OK	0x0010
373 #define	NDIS_RXCSUM_INFO_IPCS_OK	0x0020
374 #define	NDIS_RXCSUM_INFO_LOOPBACK	0x0040
375 #define	NDIS_RXCSUM_INFO_TCPCS_INVAL	0x0080
376 #define	NDIS_RXCSUM_INFO_IPCS_INVAL	0x0100
377 
378 /* LSOv2 */
379 #define	NDIS_LSO2_INFO_SIZE		sizeof(uint32_t)
380 #define	NDIS_LSO2_INFO_MSS_MASK		0x000fffff
381 #define	NDIS_LSO2_INFO_THOFF_MASK	0x3ff00000
382 #define	NDIS_LSO2_INFO_ISLSO2		0x40000000
383 #define	NDIS_LSO2_INFO_ISIPV6		0x80000000
384 
385 #define	NDIS_LSO2_INFO_MAKE(thoff, mss)				\
386 	((((uint32_t)(mss)) & NDIS_LSO2_INFO_MSS_MASK) |	\
387 	 ((((uint32_t)(thoff)) & 0x3ff) << 20) |		\
388 	 NDIS_LSO2_INFO_ISLSO2)
389 
390 #define	NDIS_LSO2_INFO_MAKEIPV4(thoff, mss)			\
391 	NDIS_LSO2_INFO_MAKE((thoff), (mss))
392 
393 #define	NDIS_LSO2_INFO_MAKEIPV6(thoff, mss)			\
394 	(NDIS_LSO2_INFO_MAKE((thoff), (mss)) | NDIS_LSO2_INFO_ISIPV6)
395 
396 /* Transmission checksum */
397 #define	NDIS_TXCSUM_INFO_SIZE		sizeof(uint32_t)
398 #define	NDIS_TXCSUM_INFO_IPV4		0x00000001
399 #define	NDIS_TXCSUM_INFO_IPV6		0x00000002
400 #define	NDIS_TXCSUM_INFO_TCPCS		0x00000004
401 #define	NDIS_TXCSUM_INFO_UDPCS		0x00000008
402 #define	NDIS_TXCSUM_INFO_IPCS		0x00000010
403 #define	NDIS_TXCSUM_INFO_THOFF		0x03ff0000
404 
405 #define	NDIS_TXCSUM_INFO_MKL4CS(thoff, flag)			\
406 	((((uint32_t)(thoff)) << 16) | (flag))
407 
408 #define	NDIS_TXCSUM_INFO_MKTCPCS(thoff)				\
409 	NDIS_TXCSUM_INFO_MKL4CS((thoff), NDIS_TXCSUM_INFO_TCPCS)
410 
411 #define	NDIS_TXCSUM_INFO_MKUDPCS(thoff)				\
412 	NDIS_TXCSUM_INFO_MKL4CS((thoff), NDIS_TXCSUM_INFO_UDPCS)
413 
414 #endif	/* !_NET_NDIS_H_ */
415