xref: /freebsd/sys/dev/hyperv/netvsc/ndis.h (revision cd0d51baaa4509a1db83251a601d34404d20c990)
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 #define	NDIS_HASH_UDP_IPV4_X		0x00004000	/* XXX non-standard */
60 
61 #define	NDIS_HASH_ALL			(NDIS_HASH_IPV4 |	\
62 					 NDIS_HASH_TCP_IPV4 |	\
63 					 NDIS_HASH_IPV6 |	\
64 					 NDIS_HASH_IPV6_EX |	\
65 					 NDIS_HASH_TCP_IPV6 |	\
66 					 NDIS_HASH_TCP_IPV6_EX |\
67 					 NDIS_HASH_UDP_IPV4_X)
68 
69 #define	NDIS_HASH_STD			(NDIS_HASH_IPV4 |	\
70 					 NDIS_HASH_TCP_IPV4 |	\
71 					 NDIS_HASH_IPV6 |	\
72 					 NDIS_HASH_IPV6_EX |	\
73 					 NDIS_HASH_TCP_IPV6 |	\
74 					 NDIS_HASH_TCP_IPV6_EX)
75 
76 /* Hash description for use with printf(9) %b identifier. */
77 #define	NDIS_HASH_BITS			\
78 	"\20\1TOEPLITZ\11IP4\12TCP4\13IP6\14IP6EX\15TCP6\16TCP6EX\17UDP4_X"
79 
80 #define	NDIS_HASH_KEYSIZE_TOEPLITZ	40
81 #define	NDIS_HASH_INDCNT		128
82 
83 #define	NDIS_OBJTYPE_DEFAULT		0x80
84 #define	NDIS_OBJTYPE_RSS_CAPS		0x88
85 #define	NDIS_OBJTYPE_RSS_PARAMS		0x89
86 #define	NDIS_OBJTYPE_OFFLOAD		0xa7
87 
88 struct ndis_object_hdr {
89 	uint8_t			ndis_type;	/* NDIS_OBJTYPE_ */
90 	uint8_t			ndis_rev;	/* type specific */
91 	uint16_t		ndis_size;	/* incl. this hdr */
92 };
93 
94 /*
95  * OID_TCP_OFFLOAD_PARAMETERS
96  * ndis_type: NDIS_OBJTYPE_DEFAULT
97  */
98 struct ndis_offload_params {
99 	struct ndis_object_hdr	ndis_hdr;
100 	uint8_t			ndis_ip4csum;	/* NDIS_OFFLOAD_PARAM_ */
101 	uint8_t			ndis_tcp4csum;	/* NDIS_OFFLOAD_PARAM_ */
102 	uint8_t			ndis_udp4csum;	/* NDIS_OFFLOAD_PARAM_ */
103 	uint8_t			ndis_tcp6csum;	/* NDIS_OFFLOAD_PARAM_ */
104 	uint8_t			ndis_udp6csum;	/* NDIS_OFFLOAD_PARAM_ */
105 	uint8_t			ndis_lsov1;	/* NDIS_OFFLOAD_PARAM_ */
106 	uint8_t			ndis_ipsecv1;	/* NDIS_OFFLOAD_IPSECV1_ */
107 	uint8_t			ndis_lsov2_ip4;	/* NDIS_OFFLOAD_LSOV2_ */
108 	uint8_t			ndis_lsov2_ip6;	/* NDIS_OFFLOAD_LSOV2_ */
109 	uint8_t			ndis_tcp4conn;	/* 0 */
110 	uint8_t			ndis_tcp6conn;	/* 0 */
111 	uint32_t		ndis_flags;	/* 0 */
112 	/* NDIS >= 6.1 */
113 	uint8_t			ndis_ipsecv2;	/* NDIS_OFFLOAD_IPSECV2_ */
114 	uint8_t			ndis_ipsecv2_ip4;/* NDIS_OFFLOAD_IPSECV2_ */
115 	/* NDIS >= 6.30 */
116 	uint8_t			ndis_rsc_ip4;	/* NDIS_OFFLOAD_RSC_ */
117 	uint8_t			ndis_rsc_ip6;	/* NDIS_OFFLOAD_RSC_ */
118 	uint32_t		ndis_encap;	/* NDIS_OFFLOAD_SET_ */
119 	uint32_t		ndis_encap_types;/* NDIS_ENCAP_TYPE_ */
120 };
121 
122 #define	NDIS_OFFLOAD_PARAMS_SIZE	sizeof(struct ndis_offload_params)
123 #define	NDIS_OFFLOAD_PARAMS_SIZE_6_1	\
124 	__offsetof(struct ndis_offload_params, ndis_rsc_ip4)
125 
126 #define	NDIS_OFFLOAD_PARAMS_REV_2	2	/* NDIS 6.1 */
127 #define	NDIS_OFFLOAD_PARAMS_REV_3	3	/* NDIS 6.30 */
128 
129 #define	NDIS_OFFLOAD_PARAM_NOCHG	0	/* common */
130 #define	NDIS_OFFLOAD_PARAM_OFF		1
131 #define	NDIS_OFFLOAD_PARAM_TX		2
132 #define	NDIS_OFFLOAD_PARAM_RX		3
133 #define	NDIS_OFFLOAD_PARAM_TXRX		4
134 
135 /* NDIS_OFFLOAD_PARAM_NOCHG */
136 #define	NDIS_OFFLOAD_LSOV1_OFF		1
137 #define	NDIS_OFFLOAD_LSOV1_ON		2
138 
139 /* NDIS_OFFLOAD_PARAM_NOCHG */
140 #define	NDIS_OFFLOAD_IPSECV1_OFF	1
141 #define	NDIS_OFFLOAD_IPSECV1_AH		2
142 #define	NDIS_OFFLOAD_IPSECV1_ESP	3
143 #define	NDIS_OFFLOAD_IPSECV1_AH_ESP	4
144 
145 /* NDIS_OFFLOAD_PARAM_NOCHG */
146 #define	NDIS_OFFLOAD_LSOV2_OFF		1
147 #define	NDIS_OFFLOAD_LSOV2_ON		2
148 
149 /* NDIS_OFFLOAD_PARAM_NOCHG */
150 #define	NDIS_OFFLOAD_IPSECV2_OFF	1
151 #define	NDIS_OFFLOAD_IPSECV2_AH		2
152 #define	NDIS_OFFLOAD_IPSECV2_ESP	3
153 #define	NDIS_OFFLOAD_IPSECV2_AH_ESP	4
154 
155 /* NDIS_OFFLOAD_PARAM_NOCHG */
156 #define	NDIS_OFFLOAD_RSC_OFF		1
157 #define	NDIS_OFFLOAD_RSC_ON		2
158 
159 /*
160  * OID_GEN_RECEIVE_SCALE_CAPABILITIES
161  * ndis_type: NDIS_OBJTYPE_RSS_CAPS
162  */
163 struct ndis_rss_caps {
164 	struct ndis_object_hdr		ndis_hdr;
165 	uint32_t			ndis_caps;	/* NDIS_RSS_CAP_ */
166 	uint32_t			ndis_nmsi;	/* # of MSIs */
167 	uint32_t			ndis_nrxr;	/* # of RX rings */
168 	/* NDIS >= 6.30 */
169 	uint16_t			ndis_nind;	/* # of indtbl ent. */
170 	uint16_t			ndis_pad;
171 };
172 
173 #define	NDIS_RSS_CAPS_SIZE		\
174 	__offsetof(struct ndis_rss_caps, ndis_pad)
175 #define	NDIS_RSS_CAPS_SIZE_6_0		\
176 	__offsetof(struct ndis_rss_caps, ndis_nind)
177 
178 #define	NDIS_RSS_CAPS_REV_1		1	/* NDIS 6.{0,1,20} */
179 #define	NDIS_RSS_CAPS_REV_2		2	/* NDIS 6.30 */
180 
181 #define	NDIS_RSS_CAP_MSI		0x01000000
182 #define	NDIS_RSS_CAP_CLASSIFY_ISR	0x02000000
183 #define	NDIS_RSS_CAP_CLASSIFY_DPC	0x04000000
184 #define	NDIS_RSS_CAP_MSIX		0x08000000
185 #define	NDIS_RSS_CAP_IPV4		0x00000100
186 #define	NDIS_RSS_CAP_IPV6		0x00000200
187 #define	NDIS_RSS_CAP_IPV6_EX		0x00000400
188 #define	NDIS_RSS_CAP_HASH_TOEPLITZ	NDIS_HASH_FUNCTION_TOEPLITZ
189 #define	NDIS_RSS_CAP_HASHFUNC_MASK	NDIS_HASH_FUNCTION_MASK
190 
191 /*
192  * OID_GEN_RECEIVE_SCALE_PARAMETERS
193  * ndis_type: NDIS_OBJTYPE_RSS_PARAMS
194  */
195 struct ndis_rss_params {
196 	struct ndis_object_hdr		ndis_hdr;
197 	uint16_t			ndis_flags;	/* NDIS_RSS_FLAG_ */
198 	uint16_t			ndis_bcpu;	/* base cpu 0 */
199 	uint32_t			ndis_hash;	/* NDIS_HASH_ */
200 	uint16_t			ndis_indsize;	/* indirect table */
201 	uint32_t			ndis_indoffset;
202 	uint16_t			ndis_keysize;	/* hash key */
203 	uint32_t			ndis_keyoffset;
204 	/* NDIS >= 6.20 */
205 	uint32_t			ndis_cpumaskoffset;
206 	uint32_t			ndis_cpumaskcnt;
207 	uint32_t			ndis_cpumaskentsz;
208 };
209 
210 #define	NDIS_RSS_PARAMS_SIZE		sizeof(struct ndis_rss_params)
211 #define	NDIS_RSS_PARAMS_SIZE_6_0	\
212 	__offsetof(struct ndis_rss_params, ndis_cpumaskoffset)
213 
214 #define	NDIS_RSS_PARAMS_REV_1		1	/* NDIS 6.0 */
215 #define	NDIS_RSS_PARAMS_REV_2		2	/* NDIS 6.20 */
216 
217 #define	NDIS_RSS_FLAG_NONE		0x0000
218 #define	NDIS_RSS_FLAG_BCPU_UNCHG	0x0001
219 #define	NDIS_RSS_FLAG_HASH_UNCHG	0x0002
220 #define	NDIS_RSS_FLAG_IND_UNCHG		0x0004
221 #define	NDIS_RSS_FLAG_KEY_UNCHG		0x0008
222 #define	NDIS_RSS_FLAG_DISABLE		0x0010
223 
224 /* non-standard convenient struct */
225 struct ndis_rssprm_toeplitz {
226 	struct ndis_rss_params		rss_params;
227 	/* Toeplitz hash key */
228 	uint8_t				rss_key[NDIS_HASH_KEYSIZE_TOEPLITZ];
229 	/* Indirect table */
230 	uint32_t			rss_ind[NDIS_HASH_INDCNT];
231 };
232 
233 #define	NDIS_RSSPRM_TOEPLITZ_SIZE(nind)	\
234 	__offsetof(struct ndis_rssprm_toeplitz, rss_ind[nind])
235 
236 /*
237  * OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES
238  * ndis_type: NDIS_OBJTYPE_OFFLOAD
239  */
240 
241 #define	NDIS_OFFLOAD_ENCAP_NONE		0x0000
242 #define	NDIS_OFFLOAD_ENCAP_NULL		0x0001
243 #define	NDIS_OFFLOAD_ENCAP_8023		0x0002
244 #define	NDIS_OFFLOAD_ENCAP_8023PQ	0x0004
245 #define	NDIS_OFFLOAD_ENCAP_8023PQ_OOB	0x0008
246 #define	NDIS_OFFLOAD_ENCAP_RFC1483	0x0010
247 
248 struct ndis_csum_offload {
249 	uint32_t			ndis_ip4_txenc;	/*NDIS_OFFLOAD_ENCAP_*/
250 	uint32_t			ndis_ip4_txcsum;
251 #define	NDIS_TXCSUM_CAP_IP4OPT		0x001
252 #define	NDIS_TXCSUM_CAP_TCP4OPT		0x004
253 #define	NDIS_TXCSUM_CAP_TCP4		0x010
254 #define	NDIS_TXCSUM_CAP_UDP4		0x040
255 #define	NDIS_TXCSUM_CAP_IP4		0x100
256 	uint32_t			ndis_ip4_rxenc;	/*NDIS_OFFLOAD_ENCAP_*/
257 	uint32_t			ndis_ip4_rxcsum;
258 #define	NDIS_RXCSUM_CAP_IP4OPT		0x001
259 #define	NDIS_RXCSUM_CAP_TCP4OPT		0x004
260 #define	NDIS_RXCSUM_CAP_TCP4		0x010
261 #define	NDIS_RXCSUM_CAP_UDP4		0x040
262 #define	NDIS_RXCSUM_CAP_IP4		0x100
263 	uint32_t			ndis_ip6_txenc;	/*NDIS_OFFLOAD_ENCAP_*/
264 	uint32_t			ndis_ip6_txcsum;
265 #define	NDIS_TXCSUM_CAP_IP6EXT		0x001
266 #define	NDIS_TXCSUM_CAP_TCP6OPT		0x004
267 #define	NDIS_TXCSUM_CAP_TCP6		0x010
268 #define	NDIS_TXCSUM_CAP_UDP6		0x040
269 	uint32_t			ndis_ip6_rxenc;	/*NDIS_OFFLOAD_ENCAP_*/
270 	uint32_t			ndis_ip6_rxcsum;
271 #define	NDIS_RXCSUM_CAP_IP6EXT		0x001
272 #define	NDIS_RXCSUM_CAP_TCP6OPT		0x004
273 #define	NDIS_RXCSUM_CAP_TCP6		0x010
274 #define	NDIS_RXCSUM_CAP_UDP6		0x040
275 };
276 
277 struct ndis_lsov1_offload {
278 	uint32_t			ndis_encap;	/*NDIS_OFFLOAD_ENCAP_*/
279 	uint32_t			ndis_maxsize;
280 	uint32_t			ndis_minsegs;
281 	uint32_t			ndis_opts;
282 };
283 
284 struct ndis_ipsecv1_offload {
285 	uint32_t			ndis_encap;	/*NDIS_OFFLOAD_ENCAP_*/
286 	uint32_t			ndis_ah_esp;
287 	uint32_t			ndis_xport_tun;
288 	uint32_t			ndis_ip4_opts;
289 	uint32_t			ndis_flags;
290 	uint32_t			ndis_ip4_ah;
291 	uint32_t			ndis_ip4_esp;
292 };
293 
294 struct ndis_lsov2_offload {
295 	uint32_t			ndis_ip4_encap;	/*NDIS_OFFLOAD_ENCAP_*/
296 	uint32_t			ndis_ip4_maxsz;
297 	uint32_t			ndis_ip4_minsg;
298 	uint32_t			ndis_ip6_encap;	/*NDIS_OFFLOAD_ENCAP_*/
299 	uint32_t			ndis_ip6_maxsz;
300 	uint32_t			ndis_ip6_minsg;
301 	uint32_t			ndis_ip6_opts;
302 #define	NDIS_LSOV2_CAP_IP6EXT		0x001
303 #define	NDIS_LSOV2_CAP_TCP6OPT		0x004
304 };
305 
306 struct ndis_ipsecv2_offload {
307 	uint32_t			ndis_encap;	/*NDIS_OFFLOAD_ENCAP_*/
308 	uint16_t			ndis_ip6;
309 	uint16_t			ndis_ip4opt;
310 	uint16_t			ndis_ip6ext;
311 	uint16_t			ndis_ah;
312 	uint16_t			ndis_esp;
313 	uint16_t			ndis_ah_esp;
314 	uint16_t			ndis_xport;
315 	uint16_t			ndis_tun;
316 	uint16_t			ndis_xport_tun;
317 	uint16_t			ndis_lso;
318 	uint16_t			ndis_extseq;
319 	uint32_t			ndis_udp_esp;
320 	uint32_t			ndis_auth;
321 	uint32_t			ndis_crypto;
322 	uint32_t			ndis_sa_caps;
323 };
324 
325 struct ndis_rsc_offload {
326 	uint16_t			ndis_ip4;
327 	uint16_t			ndis_ip6;
328 };
329 
330 struct ndis_encap_offload {
331 	uint32_t			ndis_flags;
332 	uint32_t			ndis_maxhdr;
333 };
334 
335 struct ndis_offload {
336 	struct ndis_object_hdr		ndis_hdr;
337 	struct ndis_csum_offload	ndis_csum;
338 	struct ndis_lsov1_offload	ndis_lsov1;
339 	struct ndis_ipsecv1_offload	ndis_ipsecv1;
340 	struct ndis_lsov2_offload	ndis_lsov2;
341 	uint32_t			ndis_flags;
342 	/* NDIS >= 6.1 */
343 	struct ndis_ipsecv2_offload	ndis_ipsecv2;
344 	/* NDIS >= 6.30 */
345 	struct ndis_rsc_offload		ndis_rsc;
346 	struct ndis_encap_offload	ndis_encap_gre;
347 };
348 
349 #define	NDIS_OFFLOAD_SIZE		sizeof(struct ndis_offload)
350 #define	NDIS_OFFLOAD_SIZE_6_0		\
351 	__offsetof(struct ndis_offload, ndis_ipsecv2)
352 #define	NDIS_OFFLOAD_SIZE_6_1		\
353 	__offsetof(struct ndis_offload, ndis_rsc)
354 
355 #define	NDIS_OFFLOAD_REV_1		1	/* NDIS 6.0 */
356 #define	NDIS_OFFLOAD_REV_2		2	/* NDIS 6.1 */
357 #define	NDIS_OFFLOAD_REV_3		3	/* NDIS 6.30 */
358 
359 /*
360  * Per-packet-info
361  */
362 
363 /* VLAN */
364 #define	NDIS_VLAN_INFO_SIZE		sizeof(uint32_t)
365 #define	NDIS_VLAN_INFO_PRI_MASK		0x0007
366 #define	NDIS_VLAN_INFO_CFI_MASK		0x0008
367 #define	NDIS_VLAN_INFO_ID_MASK		0xfff0
368 #define	NDIS_VLAN_INFO_MAKE(id, pri, cfi)	\
369         (((pri) & NDIS_VLAN_INFO_PRI_MASK) |	\
370 	 (((cfi) & 0x1) << 3) | (((id) & 0xfff) << 4))
371 #define	NDIS_VLAN_INFO_ID(inf)		(((inf) & NDIS_VLAN_INFO_ID_MASK) >> 4)
372 #define	NDIS_VLAN_INFO_CFI(inf)		(((inf) & NDIS_VLAN_INFO_CFI_MASK) >> 3)
373 #define	NDIS_VLAN_INFO_PRI(inf)		((inf) & NDIS_VLAN_INFO_PRI_MASK)
374 
375 /* Reception checksum */
376 #define	NDIS_RXCSUM_INFO_SIZE		sizeof(uint32_t)
377 #define	NDIS_RXCSUM_INFO_TCPCS_FAILED	0x0001
378 #define	NDIS_RXCSUM_INFO_UDPCS_FAILED	0x0002
379 #define	NDIS_RXCSUM_INFO_IPCS_FAILED	0x0004
380 #define	NDIS_RXCSUM_INFO_TCPCS_OK	0x0008
381 #define	NDIS_RXCSUM_INFO_UDPCS_OK	0x0010
382 #define	NDIS_RXCSUM_INFO_IPCS_OK	0x0020
383 #define	NDIS_RXCSUM_INFO_LOOPBACK	0x0040
384 #define	NDIS_RXCSUM_INFO_TCPCS_INVAL	0x0080
385 #define	NDIS_RXCSUM_INFO_IPCS_INVAL	0x0100
386 
387 /* LSOv2 */
388 #define	NDIS_LSO2_INFO_SIZE		sizeof(uint32_t)
389 #define	NDIS_LSO2_INFO_MSS_MASK		0x000fffff
390 #define	NDIS_LSO2_INFO_THOFF_MASK	0x3ff00000
391 #define	NDIS_LSO2_INFO_ISLSO2		0x40000000
392 #define	NDIS_LSO2_INFO_ISIPV6		0x80000000
393 
394 #define	NDIS_LSO2_INFO_MAKE(thoff, mss)				\
395 	((((uint32_t)(mss)) & NDIS_LSO2_INFO_MSS_MASK) |	\
396 	 ((((uint32_t)(thoff)) & 0x3ff) << 20) |		\
397 	 NDIS_LSO2_INFO_ISLSO2)
398 
399 #define	NDIS_LSO2_INFO_MAKEIPV4(thoff, mss)			\
400 	NDIS_LSO2_INFO_MAKE((thoff), (mss))
401 
402 #define	NDIS_LSO2_INFO_MAKEIPV6(thoff, mss)			\
403 	(NDIS_LSO2_INFO_MAKE((thoff), (mss)) | NDIS_LSO2_INFO_ISIPV6)
404 
405 /* Transmission checksum */
406 #define	NDIS_TXCSUM_INFO_SIZE		sizeof(uint32_t)
407 #define	NDIS_TXCSUM_INFO_IPV4		0x00000001
408 #define	NDIS_TXCSUM_INFO_IPV6		0x00000002
409 #define	NDIS_TXCSUM_INFO_TCPCS		0x00000004
410 #define	NDIS_TXCSUM_INFO_UDPCS		0x00000008
411 #define	NDIS_TXCSUM_INFO_IPCS		0x00000010
412 #define	NDIS_TXCSUM_INFO_THOFF		0x03ff0000
413 
414 #define	NDIS_TXCSUM_INFO_MKL4CS(thoff, flag)			\
415 	((((uint32_t)(thoff)) << 16) | (flag))
416 
417 #define	NDIS_TXCSUM_INFO_MKTCPCS(thoff)				\
418 	NDIS_TXCSUM_INFO_MKL4CS((thoff), NDIS_TXCSUM_INFO_TCPCS)
419 
420 #define	NDIS_TXCSUM_INFO_MKUDPCS(thoff)				\
421 	NDIS_TXCSUM_INFO_MKL4CS((thoff), NDIS_TXCSUM_INFO_UDPCS)
422 
423 #endif	/* !_NET_NDIS_H_ */
424