xref: /dragonfly/sys/dev/raid/asr/i2obscsi.h (revision 1b7d1d10)
1 /*-
2  ****************************************************************
3  * Copyright (c) 1996-2000 Distributed Processing Technology Corporation
4  * Copyright (c) 2000 Adaptec Corporation.
5  * All rights reserved.
6  *
7  * Copyright 1999 I2O Special Interest Group (I2O SIG).	 All rights reserved.
8  * All rights reserved
9  *
10  * TERMS AND CONDITIONS OF USE
11  *
12  * Redistribution and use in source form, with or without modification, are
13  * permitted provided that redistributions of source code must retain the
14  * above copyright notice, this list of conditions and the following disclaimer.
15  *
16  * This software is provided `as is' by Distributed Processing Technology and
17  * any express or implied warranties, including, but not limited to, the
18  * implied warranties of merchantability and fitness for a particular purpose,
19  * are disclaimed. In no event shall Distributed Processing Technology be
20  * liable for any direct, indirect, incidental, special, exemplary or
21  * consequential damages (including, but not limited to, procurement of
22  * substitute goods or services; loss of use, data, or profits; or business
23  * interruptions) however caused and on any theory of liability, whether in
24  * contract, strict liability, or tort (including negligence or otherwise)
25  * arising in any way out of the use of this driver software, even if advised
26  * of the possibility of such damage.
27  *
28  * This header file, and any modifications of this header file, are provided
29  * contingent upon your agreement and adherence to the here-listed terms and
30  * conditions.	By accepting and/or using this header file, you agree to abide
31  * by these terms and conditions and that these terms and conditions will be
32  * construed and governed in accordance with the laws of the State of California,
33  * without reference to conflict-of-law provisions.  If you do not agree
34  * to these terms and conditions, please delete this file, and any copies,
35  * permanently, without making any use thereof.
36  *
37  * THIS HEADER FILE IS PROVIDED FREE OF CHARGE ON AN AS-IS BASIS WITHOUT
38  * WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
39  * TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
40  * PURPOSE.  I2O SIG DOES NOT WARRANT THAT THIS HEADER FILE WILL MEET THE
41  * USER'S REQUIREMENTS OR THAT ITS OPERATION WILL BE UNINTERRUPTED OR
42  * ERROR-FREE.
43  *
44  * I2O SIG DISCLAIMS ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF
45  * ANY PROPRIETARY RIGHTS, RELATING TO THE IMPLEMENTATION OF THE I2O
46  * SPECIFICATIONS.  I2O SIG DOES NOT WARRANT OR REPRESENT THAT SUCH
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51  * OR LOST PROFITS ARISING OUT OF THE USE OR INABILITY TO USE THIS PROGRAM.
52  *
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54  * and modify it, for any purpose, under the following terms.  Any copying,
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56  * the copyright notice of I2O SIG or any of these Terms and Conditions.
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59  * header file (unless such charges are strictly for the physical acts of
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61  * which this header file is embedded may include a charge so long as any
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64  * Any modification of this header file constitutes a derivative work based
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66  * include prominent notices that the header file has been changed from the
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71  * as these Terms and Conditions.
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78  * (United States).
79  *
80  * $FreeBSD: src/sys/dev/asr/i2obscsi.h,v 1.6 2005/01/06 01:42:29 imp Exp $
81  *
82  ****************************************************************/
83 
84 #if !defined(I2O_BASE_SCSI_HDR)
85 #define	I2O_BASE_SCSI_HDR
86 
87 #include    "i2omsg.h"		 /* Include the Base Message file */
88 
89 
90 #define	I2OBSCSI_REV 1_5_1	/* Header file revision string */
91 
92 
93 
94 /*****************************************************************************
95  *
96  *    I2OBSCSI.h -- I2O Base SCSI Device Class Message defintion file
97  *
98  *	This file contains information presented in Chapter 6, Section 6 & 7 of
99  *	the I2O Specification.
100  *
101  *  Revision History: (Revision History tracks the revision number of the I2O
102  *	    specification)
103  *
104  *	.92 - First marked revsion used for Proof of Concept.
105  *	.93 - Change to match the rev .93 of the spec.
106  *	.95 - Updated to Rev .95 of 2/5/96.
107  *     1.00 - Checked and Updated against spec version 1.00 4/9/96.
108  *     1.xx - Updated to the 1.x version of the I2O Specification on 11/11/96.
109  *     1.xx - 11/14/96
110  *	      1) Removed duplicate device type definitions.
111  *	      2) Added "DSC" to Detailed Status Code definitions.
112  *	      3) Changed SCSI-3 LUN fields from U64 to U8 array.
113  *     1.xx   11/15/96 - Added #pragma statments for i960.
114  *     1.xx   11/20/96 - Changed duplicate Bus Scan structure to Bus Reset.
115  *     1.xx   12/05/96 - Added Auto Request Sense flag definition.
116  *     1.5d   03/06/97 - Update for spec. draft version 1.5d.
117  *	      1) Converted SCSI bus adapter class to generic in i2oadptr.h.
118  *	      2) Fixed DSC reference:  changed from _BUS_SCAN to _BUS_RESET.
119  *     1.5d   03/031/97 - Made AutoSense flag definition consistent with spec.
120  *     1.5d   04/11/97 - Corrections from review cycle:
121  *	      1) Corrected typo in I2O_SCSI_PERIPHERAL_TYPE_PARALLEL.
122  *	      2) Corrected typo in I2O_SCSI_PORT_CONN_UNSHIELDED_P_HD.
123  *     1.5.1  05/02/97 - Corrections from review cycle:
124  *	      1) Remove #include for i2omstor.h.
125  *	      2) Add revision string.
126  *	      3) Convert tabs to spaces.
127  *	      4) New disclaimer.
128  *
129  *****************************************************************************/
130 
131 /*
132     NOTES:
133 
134     Gets, reads, receives, etc. are all even numbered functions.
135     Sets, writes, sends, etc. are all odd numbered functions.
136     Functions that both send and receive data can be either but an attempt is made
137     to use the function number that indicates the greater transfer amount.
138     Functions that do not send or receive data use odd function numbers.
139 
140     Some functions are synonyms like read, receive and send, write.
141 
142     All common functions will have a code of less than 0x80.
143     Unique functions to a class will start at 0x80.
144     Executive Functions start at 0xA0.
145 
146     Utility Message function codes range from 0 - 0x1f
147     Base Message function codes range from 0x20 - 0xfe
148     Private Message function code is 0xff.
149 */
150 
151 PRAGMA_ALIGN_PUSH
152 
153 PRAGMA_PACK_PUSH
154 
155 /*
156     SCSI Peripheral Class specific functions
157 
158     Although the names are SCSI Peripheral class specific, the values
159     assigned are common with other classes when applicable.
160 */
161 
162 #define	    I2O_SCSI_DEVICE_RESET	    0x27
163 #define	    I2O_SCSI_SCB_ABORT		    0x83
164 #define	    I2O_SCSI_SCB_EXEC		    0x81
165 
166 /*
167     Detailed Status Codes for SCSI operations
168 
169     The 16-bit Detailed Status Code field for SCSI operations is divided
170     into two separate 8-bit fields.  The lower 8 bits are used to report
171     Device Status information.	The upper 8 bits are used to report
172     Adapter Status information.	 The definitions for these two fields,
173     however, will be consistent with the standard reply message frame
174     structure declaration, which treats this as a single 16-bit field.
175 */
176 
177 
178 /*  SCSI Device Completion Status Codes (defined by SCSI-2/3)*/
179 
180 #define	I2O_SCSI_DEVICE_DSC_MASK		0x00FF
181 
182 #define	I2O_SCSI_DSC_SUCCESS			0x0000
183 #define	I2O_SCSI_DSC_CHECK_CONDITION		0x0002
184 #define	I2O_SCSI_DSC_BUSY			0x0008
185 #define	I2O_SCSI_DSC_RESERVATION_CONFLICT	0x0018
186 #define	I2O_SCSI_DSC_COMMAND_TERMINATED		0x0022
187 #define	I2O_SCSI_DSC_TASK_SET_FULL		0x0028
188 #define	I2O_SCSI_DSC_ACA_ACTIVE			0x0030
189 
190 /*  SCSI Adapter Status Codes (based on CAM-1) */
191 
192 #define	I2O_SCSI_HBA_DSC_MASK			0xFF00
193 
194 #define	I2O_SCSI_HBA_DSC_SUCCESS		0x0000
195 
196 #define	I2O_SCSI_HBA_DSC_REQUEST_ABORTED	0x0200
197 #define	I2O_SCSI_HBA_DSC_UNABLE_TO_ABORT	0x0300
198 #define	I2O_SCSI_HBA_DSC_COMPLETE_WITH_ERROR	0x0400
199 #define	I2O_SCSI_HBA_DSC_ADAPTER_BUSY		0x0500
200 #define	I2O_SCSI_HBA_DSC_REQUEST_INVALID	0x0600
201 #define	I2O_SCSI_HBA_DSC_PATH_INVALID		0x0700
202 #define	I2O_SCSI_HBA_DSC_DEVICE_NOT_PRESENT	0x0800
203 #define	I2O_SCSI_HBA_DSC_UNABLE_TO_TERMINATE	0x0900
204 #define	I2O_SCSI_HBA_DSC_SELECTION_TIMEOUT	0x0A00
205 #define	I2O_SCSI_HBA_DSC_COMMAND_TIMEOUT	0x0B00
206 
207 #define	I2O_SCSI_HBA_DSC_MR_MESSAGE_RECEIVED	0x0D00
208 #define	I2O_SCSI_HBA_DSC_SCSI_BUS_RESET		0x0E00
209 #define	I2O_SCSI_HBA_DSC_PARITY_ERROR_FAILURE	0x0F00
210 #define	I2O_SCSI_HBA_DSC_AUTOSENSE_FAILED	0x1000
211 #define	I2O_SCSI_HBA_DSC_NO_ADAPTER		0x1100
212 #define	I2O_SCSI_HBA_DSC_DATA_OVERRUN		0x1200
213 #define	I2O_SCSI_HBA_DSC_UNEXPECTED_BUS_FREE	0x1300
214 #define	I2O_SCSI_HBA_DSC_SEQUENCE_FAILURE	0x1400
215 #define	I2O_SCSI_HBA_DSC_REQUEST_LENGTH_ERROR	0x1500
216 #define	I2O_SCSI_HBA_DSC_PROVIDE_FAILURE	0x1600
217 #define	I2O_SCSI_HBA_DSC_BDR_MESSAGE_SENT	0x1700
218 #define	I2O_SCSI_HBA_DSC_REQUEST_TERMINATED	0x1800
219 
220 #define	I2O_SCSI_HBA_DSC_IDE_MESSAGE_SENT	0x3300
221 #define	I2O_SCSI_HBA_DSC_RESOURCE_UNAVAILABLE	0x3400
222 #define	I2O_SCSI_HBA_DSC_UNACKNOWLEDGED_EVENT	0x3500
223 #define	I2O_SCSI_HBA_DSC_MESSAGE_RECEIVED	0x3600
224 #define	I2O_SCSI_HBA_DSC_INVALID_CDB		0x3700
225 #define	I2O_SCSI_HBA_DSC_LUN_INVALID		0x3800
226 #define	I2O_SCSI_HBA_DSC_SCSI_TID_INVALID	0x3900
227 #define	I2O_SCSI_HBA_DSC_FUNCTION_UNAVAILABLE	0x3A00
228 #define	I2O_SCSI_HBA_DSC_NO_NEXUS		0x3B00
229 #define	I2O_SCSI_HBA_DSC_SCSI_IID_INVALID	0x3C00
230 #define	I2O_SCSI_HBA_DSC_CDB_RECEIVED		0x3D00
231 #define	I2O_SCSI_HBA_DSC_LUN_ALREADY_ENABLED	0x3E00
232 #define	I2O_SCSI_HBA_DSC_BUS_BUSY		0x3F00
233 
234 #define	I2O_SCSI_HBA_DSC_QUEUE_FROZEN		0x4000
235 
236 
237 /****************************************************************************/
238 
239 /* SCSI Peripheral Device Parameter Groups */
240 
241 /****************************************************************************/
242 
243 
244 /* SCSI Configuration and Operating Structures and Defines */
245 
246 
247 #define	    I2O_SCSI_DEVICE_INFO_GROUP_NO		0x0000
248 #define	    I2O_SCSI_DEVICE_BUS_PORT_INFO_GROUP_NO	0x0001
249 
250 
251 /* - 0000h - SCSI Device Information Parameters Group defines */
252 
253 /* Device Type */
254 
255 #define	I2O_SCSI_DEVICE_TYPE_DIRECT	    0x00
256 #define	I2O_SCSI_DEVICE_TYPE_SEQUENTIAL	    0x01
257 #define	I2O_SCSI_DEVICE_TYPE_PRINTER	    0x02
258 #define	I2O_SCSI_DEVICE_TYPE_PROCESSOR	    0x03
259 #define	I2O_SCSI_DEVICE_TYPE_WORM	    0x04
260 #define	I2O_SCSI_DEVICE_TYPE_CDROM	    0x05
261 #define	I2O_SCSI_DEVICE_TYPE_SCANNER	    0x06
262 #define	I2O_SCSI_DEVICE_TYPE_OPTICAL	    0x07
263 #define	I2O_SCSI_DEVICE_TYPE_MEDIA_CHANGER  0x08
264 #define	I2O_SCSI_DEVICE_TYPE_COMM	    0x09
265 #define	I2O_SCSI_DEVICE_GRAPHICS_1	    0x0A
266 #define	I2O_SCSI_DEVICE_GRAPHICS_2	    0x0B
267 #define	I2O_SCSI_DEVICE_TYPE_ARRAY_CONT	    0x0C
268 #define	I2O_SCSI_DEVICE_TYPE_SES	    0x0D
269 #define	I2O_SCSI_DEVICE_TYPE_UNKNOWN	    0x1F
270 
271 /* Flags */
272 
273 #define	I2O_SCSI_PERIPHERAL_TYPE_FLAG	    0x01
274 #define	I2O_SCSI_PERIPHERAL_TYPE_PARALLEL   0x00
275 #define	I2O_SCSI_PERIPHERAL_TYPE_SERIAL	    0x01
276 
277 #define	I2O_SCSI_RESERVED_FLAG		    0x02
278 
279 #define	I2O_SCSI_DISCONNECT_FLAG	    0x04
280 #define	I2O_SCSI_DISABLE_DISCONNECT	    0x00
281 #define	I2O_SCSI_ENABLE_DISCONNECT	    0x04
282 
283 #define	I2O_SCSI_MODE_MASK		    0x18
284 #define	I2O_SCSI_MODE_SET_DATA		    0x00
285 #define	I2O_SCSI_MODE_SET_DEFAULT	    0x08
286 #define	I2O_SCSI_MODE_SET_SAFEST	    0x10
287 
288 #define	I2O_SCSI_DATA_WIDTH_MASK	    0x60
289 #define	I2O_SCSI_DATA_WIDTH_8		    0x00
290 #define	I2O_SCSI_DATA_WIDTH_16		    0x20
291 #define	I2O_SCSI_DATA_WIDTH_32		    0x40
292 
293 #define	I2O_SCSI_SYNC_NEGOTIATION_FLAG	    0x80
294 #define	I2O_SCSI_DISABLE_SYNC_NEGOTIATION   0x00
295 #define	I2O_SCSI_ENABLE_SYNC_NEGOTIATION    0x80
296 
297 
298 /* - 0001h - SCSI Device Bus Port Info Parameters Group defines */
299 
300 /* Physical */
301 
302 #define	I2O_SCSI_PORT_PHYS_OTHER	    0x01
303 #define	I2O_SCSI_PORT_PHYS_UNKNOWN	    0x02
304 #define	I2O_SCSI_PORT_PHYS_PARALLEL	    0x03
305 #define	I2O_SCSI_PORT_PHYS_FIBRE_CHANNEL    0x04
306 #define	I2O_SCSI_PORT_PHYS_SERIAL_P1394	    0x05
307 #define	I2O_SCSI_PORT_PHYS_SERIAL_SSA	    0x06
308 
309 /* Electrical */
310 
311 #define	I2O_SCSI_PORT_ELEC_OTHER	    0x01
312 #define	I2O_SCSI_PORT_ELEC_UNKNOWN	    0x02
313 #define	I2O_SCSI_PORT_ELEC_SINGLE_ENDED	    0x03
314 #define	I2O_SCSI_PORT_ELEC_DIFFERENTIAL	    0x04
315 #define	I2O_SCSI_PORT_ELEC_LOW_VOLT_DIFF    0x05
316 #define	I2O_SCSI_PORT_ELEC_OPTICAL	    0x06
317 
318 /* Isochronous */
319 
320 #define	I2O_SCSI_PORT_ISOC_NO		    0x00
321 #define	I2O_SCSI_PORT_ISOC_YES		    0x01
322 #define	I2O_SCSI_PORT_ISOC_UNKNOWN	    0x02
323 
324 /* Connector Type */
325 
326 #define	I2O_SCSI_PORT_CONN_OTHER	    0x01
327 #define	I2O_SCSI_PORT_CONN_UNKNOWN	    0x02
328 #define	I2O_SCSI_PORT_CONN_NONE		    0x03
329 #define	I2O_SCSI_PORT_CONN_SHIELDED_A_HD    0x04
330 #define	I2O_SCSI_PORT_CONN_UNSHIELDED_A_HD  0x05
331 #define	I2O_SCSI_PORT_CONN_SHIELDED_A_LD    0x06
332 #define	I2O_SCSI_PORT_CONN_UNSHIELDED_A_LD  0x07
333 #define	I2O_SCSI_PORT_CONN_SHIELDED_P_HD    0x08
334 #define	I2O_SCSI_PORT_CONN_UNSHIELDED_P_HD  0x09
335 #define	I2O_SCSI_PORT_CONN_SCA_I	    0x0A
336 #define	I2O_SCSI_PORT_CONN_SCA_II	    0x0B
337 #define	I2O_SCSI_PORT_CONN_FC_DB9	    0x0C
338 #define	I2O_SCSI_PORT_CONN_FC_FIBRE	    0x0D
339 #define	I2O_SCSI_PORT_CONN_FC_SCA_II_40	    0x0E
340 #define	I2O_SCSI_PORT_CONN_FC_SCA_II_20	    0x0F
341 #define	I2O_SCSI_PORT_CONN_FC_BNC	    0x10
342 
343 /* Connector Gender */
344 
345 #define	I2O_SCSI_PORT_CONN_GENDER_OTHER	    0x01
346 #define	I2O_SCSI_PORT_CONN_GENDER_UNKOWN    0x02
347 #define	I2O_SCSI_PORT_CONN_GENDER_FEMALE    0x03
348 #define	I2O_SCSI_PORT_CONN_GENDER_MALE	    0x04
349 
350 
351 /* SCSI Device Group 0000h - Device Information Parameter Group */
352 
353 typedef struct _I2O_SCSI_DEVICE_INFO_SCALAR {
354     U8		DeviceType;
355     U8		Flags;
356     U16		Reserved2;
357     U32		Identifier;
358     U8		LunInfo[8]; /* SCSI-2 8-bit scalar LUN goes into offset 1 */
359     U32		QueueDepth;
360     U8		Reserved1a;
361     U8		NegOffset;
362     U8		NegDataWidth;
363     U8		Reserved1b;
364     U64		NegSyncRate;
365 
366 } I2O_SCSI_DEVICE_INFO_SCALAR, *PI2O_SCSI_DEVICE_INFO_SCALAR;
367 
368 
369 /* SCSI Device Group 0001h - Bus Port Information Parameter Group */
370 
371 typedef struct _I2O_SCSI_BUS_PORT_INFO_SCALAR {
372     U8		PhysicalInterface;
373     U8		ElectricalInterface;
374     U8		Isochronous;
375     U8		ConnectorType;
376     U8		ConnectorGender;
377     U8		Reserved1;
378     U16		Reserved2;
379     U32		MaxNumberDevices;
380 } I2O_SCSI_BUS_PORT_INFO_SCALAR, *PI2O_SCSI_BUS_PORT_INFO_SCALAR;
381 
382 
383 
384 /****************************************************************************/
385 
386 /* I2O SCSI Peripheral Event Indicator Assignment */
387 
388 #define	I2O_SCSI_EVENT_SCSI_SMART		0x00000010
389 
390 
391 /****************************************************************************/
392 
393 /* SCSI Peripheral Class Specific Message Definitions */
394 
395 /****************************************************************************/
396 
397 
398 /****************************************************************************/
399 
400 /* I2O SCSI Peripheral Successful Completion Reply Message Frame */
401 
402 typedef struct _I2O_SCSI_SUCCESS_REPLY_MESSAGE_FRAME {
403     I2O_SINGLE_REPLY_MESSAGE_FRAME StdReplyFrame;
404     U32			    TransferCount;
405 } I2O_SCSI_SUCCESS_REPLY_MESSAGE_FRAME, *PI2O_SCSI_SUCCESS_REPLY_MESSAGE_FRAME;
406 
407 
408 /****************************************************************************/
409 
410 /* I2O SCSI Peripheral Error Report Reply Message Frame */
411 
412 #ifdef _WIN64
413 #define	I2O_SCSI_SENSE_DATA_SZ	    44
414 #else
415 #define	I2O_SCSI_SENSE_DATA_SZ	    40
416 #endif
417 
418 typedef struct _I2O_SCSI_ERROR_REPLY_MESSAGE_FRAME {
419     I2O_SINGLE_REPLY_MESSAGE_FRAME StdReplyFrame;
420     U32			    TransferCount;
421     U32			    AutoSenseTransferCount;
422     U8			    SenseData[I2O_SCSI_SENSE_DATA_SZ];
423 } I2O_SCSI_ERROR_REPLY_MESSAGE_FRAME, *PI2O_SCSI_ERROR_REPLY_MESSAGE_FRAME;
424 
425 
426 /****************************************************************************/
427 
428 /* I2O SCSI Device Reset Message Frame */
429 
430 typedef struct _I2O_SCSI_DEVICE_RESET_MESSAGE {
431     I2O_MESSAGE_FRAME	    StdMessageFrame;
432     I2O_TRANSACTION_CONTEXT TransactionContext;
433 } I2O_SCSI_DEVICE_RESET_MESSAGE, *PI2O_SCSI_DEVICE_RESET_MESSAGE;
434 
435 
436 /****************************************************************************/
437 
438 /* I2O SCSI Control Block Abort Message Frame */
439 
440 typedef struct _I2O_SCSI_SCB_ABORT_MESSAGE {
441     I2O_MESSAGE_FRAME	    StdMessageFrame;
442     I2O_TRANSACTION_CONTEXT TransactionContext;
443     I2O_TRANSACTION_CONTEXT TransactionContextToAbort;
444 } I2O_SCSI_SCB_ABORT_MESSAGE, *PI2O_SCSI_SCB_ABORT_MESSAGE;
445 
446 
447 /****************************************************************************/
448 
449 /* I2O SCSI Control Block Execute Message Frame */
450 
451 #define	 I2O_SCSI_CDB_LENGTH		    16
452 
453 typedef U16	I2O_SCB_FLAGS;
454 
455 #define	I2O_SCB_FLAG_XFER_DIR_MASK	    0xC000
456 #define	I2O_SCB_FLAG_NO_DATA_XFER	    0x0000
457 #define	I2O_SCB_FLAG_XFER_FROM_DEVICE	    0x4000
458 #define	I2O_SCB_FLAG_XFER_TO_DEVICE	    0x8000
459 
460 #define	I2O_SCB_FLAG_ENABLE_DISCONNECT	    0x2000
461 
462 #define	I2O_SCB_FLAG_TAG_TYPE_MASK	    0x0380
463 #define	I2O_SCB_FLAG_NO_TAG_QUEUEING	    0x0000
464 #define	I2O_SCB_FLAG_SIMPLE_QUEUE_TAG	    0x0080
465 #define	I2O_SCB_FLAG_HEAD_QUEUE_TAG	    0x0100
466 #define	I2O_SCB_FLAG_ORDERED_QUEUE_TAG	    0x0180
467 #define	I2O_SCB_FLAG_ACA_QUEUE_TAG	    0x0200
468 
469 #define	I2O_SCB_FLAG_AUTOSENSE_MASK	    0x0060
470 #define	I2O_SCB_FLAG_DISABLE_AUTOSENSE	    0x0000
471 #define	I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE  0x0020
472 #define	I2O_SCB_FLAG_SENSE_DATA_IN_BUFFER   0x0060
473 
474 typedef struct _I2O_SCSI_SCB_EXECUTE_MESSAGE {
475     I2O_MESSAGE_FRAME	    StdMessageFrame;
476     I2O_TRANSACTION_CONTEXT TransactionContext;
477     U8			    CDBLength;
478     U8			    Reserved;
479     I2O_SCB_FLAGS	    SCBFlags;
480     U8			    CDB[I2O_SCSI_CDB_LENGTH];
481     U32			    ByteCount;
482     I2O_SG_ELEMENT	    SGL;
483 } I2O_SCSI_SCB_EXECUTE_MESSAGE, *PI2O_SCSI_SCB_EXECUTE_MESSAGE;
484 
485 
486 PRAGMA_PACK_POP
487 
488 PRAGMA_ALIGN_POP
489 
490 #endif	    /* I2O_BASE_SCSI_HDR */
491