xref: /openbmc/linux/drivers/scsi/arcmsr/arcmsr.h (revision 4da722ca)
1 /*
2 *******************************************************************************
3 **        O.S   : Linux
4 **   FILE NAME  : arcmsr.h
5 **        BY    : Nick Cheng
6 **   Description: SCSI RAID Device Driver for
7 **                ARECA RAID Host adapter
8 *******************************************************************************
9 ** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved.
10 **
11 **     Web site: www.areca.com.tw
12 **       E-mail: support@areca.com.tw
13 **
14 ** This program is free software; you can redistribute it and/or modify
15 ** it under the terms of the GNU General Public License version 2 as
16 ** published by the Free Software Foundation.
17 ** This program is distributed in the hope that it will be useful,
18 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
19 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20 ** GNU General Public License for more details.
21 *******************************************************************************
22 ** Redistribution and use in source and binary forms, with or without
23 ** modification, are permitted provided that the following conditions
24 ** are met:
25 ** 1. Redistributions of source code must retain the above copyright
26 **    notice, this list of conditions and the following disclaimer.
27 ** 2. Redistributions in binary form must reproduce the above copyright
28 **    notice, this list of conditions and the following disclaimer in the
29 **    documentation and/or other materials provided with the distribution.
30 ** 3. The name of the author may not be used to endorse or promote products
31 **    derived from this software without specific prior written permission.
32 **
33 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
34 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
35 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
36 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
37 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT
38 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
39 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
40 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
41 **(INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
42 ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
43 *******************************************************************************
44 */
45 #include <linux/interrupt.h>
46 struct device_attribute;
47 /*The limit of outstanding scsi command that firmware can handle*/
48 #ifdef CONFIG_XEN
49 	#define ARCMSR_MAX_FREECCB_NUM	160
50 #define ARCMSR_MAX_OUTSTANDING_CMD	155
51 #else
52 	#define ARCMSR_MAX_FREECCB_NUM	320
53 #define ARCMSR_MAX_OUTSTANDING_CMD	255
54 #endif
55 #define ARCMSR_DRIVER_VERSION		"v1.30.00.22-20151126"
56 #define ARCMSR_SCSI_INITIATOR_ID						255
57 #define ARCMSR_MAX_XFER_SECTORS							512
58 #define ARCMSR_MAX_XFER_SECTORS_B						4096
59 #define ARCMSR_MAX_XFER_SECTORS_C						304
60 #define ARCMSR_MAX_TARGETID							17
61 #define ARCMSR_MAX_TARGETLUN							8
62 #define ARCMSR_MAX_CMD_PERLUN		                 ARCMSR_MAX_OUTSTANDING_CMD
63 #define ARCMSR_MAX_QBUFFER							4096
64 #define ARCMSR_DEFAULT_SG_ENTRIES						38
65 #define ARCMSR_MAX_HBB_POSTQUEUE						264
66 #define ARCMSR_MAX_ARC1214_POSTQUEUE	256
67 #define ARCMSR_MAX_ARC1214_DONEQUEUE	257
68 #define ARCMSR_MAX_XFER_LEN							0x26000 /* 152K */
69 #define ARCMSR_CDB_SG_PAGE_LENGTH						256
70 #define ARCMST_NUM_MSIX_VECTORS		4
71 #ifndef PCI_DEVICE_ID_ARECA_1880
72 #define PCI_DEVICE_ID_ARECA_1880 0x1880
73  #endif
74 #ifndef PCI_DEVICE_ID_ARECA_1214
75 	#define PCI_DEVICE_ID_ARECA_1214	0x1214
76 #endif
77 #ifndef PCI_DEVICE_ID_ARECA_1203
78 	#define PCI_DEVICE_ID_ARECA_1203	0x1203
79 #endif
80 /*
81 **********************************************************************************
82 **
83 **********************************************************************************
84 */
85 #define ARC_SUCCESS                                                       0
86 #define ARC_FAILURE                                                       1
87 /*
88 *******************************************************************************
89 **        split 64bits dma addressing
90 *******************************************************************************
91 */
92 #define dma_addr_hi32(addr)               (uint32_t) ((addr>>16)>>16)
93 #define dma_addr_lo32(addr)               (uint32_t) (addr & 0xffffffff)
94 /*
95 *******************************************************************************
96 **        MESSAGE CONTROL CODE
97 *******************************************************************************
98 */
99 struct CMD_MESSAGE
100 {
101       uint32_t HeaderLength;
102       uint8_t  Signature[8];
103       uint32_t Timeout;
104       uint32_t ControlCode;
105       uint32_t ReturnCode;
106       uint32_t Length;
107 };
108 /*
109 *******************************************************************************
110 **        IOP Message Transfer Data for user space
111 *******************************************************************************
112 */
113 #define	ARCMSR_API_DATA_BUFLEN	1032
114 struct CMD_MESSAGE_FIELD
115 {
116     struct CMD_MESSAGE			cmdmessage;
117     uint8_t				messagedatabuffer[ARCMSR_API_DATA_BUFLEN];
118 };
119 /* IOP message transfer */
120 #define ARCMSR_MESSAGE_FAIL			0x0001
121 /* DeviceType */
122 #define ARECA_SATA_RAID				0x90000000
123 /* FunctionCode */
124 #define FUNCTION_READ_RQBUFFER			0x0801
125 #define FUNCTION_WRITE_WQBUFFER			0x0802
126 #define FUNCTION_CLEAR_RQBUFFER			0x0803
127 #define FUNCTION_CLEAR_WQBUFFER			0x0804
128 #define FUNCTION_CLEAR_ALLQBUFFER		0x0805
129 #define FUNCTION_RETURN_CODE_3F			0x0806
130 #define FUNCTION_SAY_HELLO			0x0807
131 #define FUNCTION_SAY_GOODBYE			0x0808
132 #define FUNCTION_FLUSH_ADAPTER_CACHE		0x0809
133 #define FUNCTION_GET_FIRMWARE_STATUS			0x080A
134 #define FUNCTION_HARDWARE_RESET			0x080B
135 /* ARECA IO CONTROL CODE*/
136 #define ARCMSR_MESSAGE_READ_RQBUFFER       \
137 	ARECA_SATA_RAID | FUNCTION_READ_RQBUFFER
138 #define ARCMSR_MESSAGE_WRITE_WQBUFFER      \
139 	ARECA_SATA_RAID | FUNCTION_WRITE_WQBUFFER
140 #define ARCMSR_MESSAGE_CLEAR_RQBUFFER      \
141 	ARECA_SATA_RAID | FUNCTION_CLEAR_RQBUFFER
142 #define ARCMSR_MESSAGE_CLEAR_WQBUFFER      \
143 	ARECA_SATA_RAID | FUNCTION_CLEAR_WQBUFFER
144 #define ARCMSR_MESSAGE_CLEAR_ALLQBUFFER    \
145 	ARECA_SATA_RAID | FUNCTION_CLEAR_ALLQBUFFER
146 #define ARCMSR_MESSAGE_RETURN_CODE_3F      \
147 	ARECA_SATA_RAID | FUNCTION_RETURN_CODE_3F
148 #define ARCMSR_MESSAGE_SAY_HELLO           \
149 	ARECA_SATA_RAID | FUNCTION_SAY_HELLO
150 #define ARCMSR_MESSAGE_SAY_GOODBYE         \
151 	ARECA_SATA_RAID | FUNCTION_SAY_GOODBYE
152 #define ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE \
153 	ARECA_SATA_RAID | FUNCTION_FLUSH_ADAPTER_CACHE
154 /* ARECA IOCTL ReturnCode */
155 #define ARCMSR_MESSAGE_RETURNCODE_OK		0x00000001
156 #define ARCMSR_MESSAGE_RETURNCODE_ERROR		0x00000006
157 #define ARCMSR_MESSAGE_RETURNCODE_3F		0x0000003F
158 #define ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON	0x00000088
159 /*
160 *************************************************************
161 **   structure for holding DMA address data
162 *************************************************************
163 */
164 #define IS_DMA64			(sizeof(dma_addr_t) == 8)
165 #define IS_SG64_ADDR                0x01000000 /* bit24 */
166 struct  SG32ENTRY
167 {
168 	__le32					length;
169 	__le32					address;
170 }__attribute__ ((packed));
171 struct  SG64ENTRY
172 {
173 	__le32					length;
174 	__le32					address;
175 	__le32					addresshigh;
176 }__attribute__ ((packed));
177 /*
178 ********************************************************************
179 **      Q Buffer of IOP Message Transfer
180 ********************************************************************
181 */
182 struct QBUFFER
183 {
184 	uint32_t      data_len;
185 	uint8_t       data[124];
186 };
187 /*
188 *******************************************************************************
189 **      FIRMWARE INFO for Intel IOP R 80331 processor (Type A)
190 *******************************************************************************
191 */
192 struct FIRMWARE_INFO
193 {
194 	uint32_t      signature;		/*0, 00-03*/
195 	uint32_t      request_len;		/*1, 04-07*/
196 	uint32_t      numbers_queue;		/*2, 08-11*/
197 	uint32_t      sdram_size;               /*3, 12-15*/
198 	uint32_t      ide_channels;		/*4, 16-19*/
199 	char          vendor[40];		/*5, 20-59*/
200 	char          model[8];			/*15, 60-67*/
201 	char          firmware_ver[16];     	/*17, 68-83*/
202 	char          device_map[16];		/*21, 84-99*/
203 	uint32_t		cfgVersion;               	/*25,100-103 Added for checking of new firmware capability*/
204 	uint8_t		cfgSerial[16];           	/*26,104-119*/
205 	uint32_t		cfgPicStatus;            	/*30,120-123*/
206 };
207 /* signature of set and get firmware config */
208 #define ARCMSR_SIGNATURE_GET_CONFIG		      0x87974060
209 #define ARCMSR_SIGNATURE_SET_CONFIG		      0x87974063
210 /* message code of inbound message register */
211 #define ARCMSR_INBOUND_MESG0_NOP		      0x00000000
212 #define ARCMSR_INBOUND_MESG0_GET_CONFIG		      0x00000001
213 #define ARCMSR_INBOUND_MESG0_SET_CONFIG               0x00000002
214 #define ARCMSR_INBOUND_MESG0_ABORT_CMD                0x00000003
215 #define ARCMSR_INBOUND_MESG0_STOP_BGRB                0x00000004
216 #define ARCMSR_INBOUND_MESG0_FLUSH_CACHE              0x00000005
217 #define ARCMSR_INBOUND_MESG0_START_BGRB               0x00000006
218 #define ARCMSR_INBOUND_MESG0_CHK331PENDING            0x00000007
219 #define ARCMSR_INBOUND_MESG0_SYNC_TIMER               0x00000008
220 /* doorbell interrupt generator */
221 #define ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK           0x00000001
222 #define ARCMSR_INBOUND_DRIVER_DATA_READ_OK            0x00000002
223 #define ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK          0x00000001
224 #define ARCMSR_OUTBOUND_IOP331_DATA_READ_OK           0x00000002
225 /* ccb areca cdb flag */
226 #define ARCMSR_CCBPOST_FLAG_SGL_BSIZE                 0x80000000
227 #define ARCMSR_CCBPOST_FLAG_IAM_BIOS                  0x40000000
228 #define ARCMSR_CCBREPLY_FLAG_IAM_BIOS                 0x40000000
229 #define ARCMSR_CCBREPLY_FLAG_ERROR_MODE0              0x10000000
230 #define ARCMSR_CCBREPLY_FLAG_ERROR_MODE1              0x00000001
231 /* outbound firmware ok */
232 #define ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK             0x80000000
233 /* ARC-1680 Bus Reset*/
234 #define ARCMSR_ARC1680_BUS_RESET				0x00000003
235 /* ARC-1880 Bus Reset*/
236 #define ARCMSR_ARC1880_RESET_ADAPTER				0x00000024
237 #define ARCMSR_ARC1880_DiagWrite_ENABLE			0x00000080
238 
239 /*
240 ************************************************************************
241 **                SPEC. for Areca Type B adapter
242 ************************************************************************
243 */
244 /* ARECA HBB COMMAND for its FIRMWARE */
245 /* window of "instruction flags" from driver to iop */
246 #define ARCMSR_DRV2IOP_DOORBELL                       0x00020400
247 #define ARCMSR_DRV2IOP_DOORBELL_MASK                  0x00020404
248 /* window of "instruction flags" from iop to driver */
249 #define ARCMSR_IOP2DRV_DOORBELL                       0x00020408
250 #define ARCMSR_IOP2DRV_DOORBELL_MASK                  0x0002040C
251 /* window of "instruction flags" from iop to driver */
252 #define ARCMSR_IOP2DRV_DOORBELL_1203                  0x00021870
253 #define ARCMSR_IOP2DRV_DOORBELL_MASK_1203             0x00021874
254 /* window of "instruction flags" from driver to iop */
255 #define ARCMSR_DRV2IOP_DOORBELL_1203                  0x00021878
256 #define ARCMSR_DRV2IOP_DOORBELL_MASK_1203             0x0002187C
257 /* ARECA FLAG LANGUAGE */
258 /* ioctl transfer */
259 #define ARCMSR_IOP2DRV_DATA_WRITE_OK                  0x00000001
260 /* ioctl transfer */
261 #define ARCMSR_IOP2DRV_DATA_READ_OK                   0x00000002
262 #define ARCMSR_IOP2DRV_CDB_DONE                       0x00000004
263 #define ARCMSR_IOP2DRV_MESSAGE_CMD_DONE               0x00000008
264 
265 #define ARCMSR_DOORBELL_HANDLE_INT		      0x0000000F
266 #define ARCMSR_DOORBELL_INT_CLEAR_PATTERN   	      0xFF00FFF0
267 #define ARCMSR_MESSAGE_INT_CLEAR_PATTERN	      0xFF00FFF7
268 /* (ARCMSR_INBOUND_MESG0_GET_CONFIG<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
269 #define ARCMSR_MESSAGE_GET_CONFIG		      0x00010008
270 /* (ARCMSR_INBOUND_MESG0_SET_CONFIG<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
271 #define ARCMSR_MESSAGE_SET_CONFIG		      0x00020008
272 /* (ARCMSR_INBOUND_MESG0_ABORT_CMD<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
273 #define ARCMSR_MESSAGE_ABORT_CMD		      0x00030008
274 /* (ARCMSR_INBOUND_MESG0_STOP_BGRB<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
275 #define ARCMSR_MESSAGE_STOP_BGRB		      0x00040008
276 /* (ARCMSR_INBOUND_MESG0_FLUSH_CACHE<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
277 #define ARCMSR_MESSAGE_FLUSH_CACHE                    0x00050008
278 /* (ARCMSR_INBOUND_MESG0_START_BGRB<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
279 #define ARCMSR_MESSAGE_START_BGRB		      0x00060008
280 #define ARCMSR_MESSAGE_START_DRIVER_MODE	      0x000E0008
281 #define ARCMSR_MESSAGE_SET_POST_WINDOW		      0x000F0008
282 #define ARCMSR_MESSAGE_ACTIVE_EOI_MODE		    0x00100008
283 /* ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK */
284 #define ARCMSR_MESSAGE_FIRMWARE_OK		      0x80000000
285 /* ioctl transfer */
286 #define ARCMSR_DRV2IOP_DATA_WRITE_OK                  0x00000001
287 /* ioctl transfer */
288 #define ARCMSR_DRV2IOP_DATA_READ_OK                   0x00000002
289 #define ARCMSR_DRV2IOP_CDB_POSTED                     0x00000004
290 #define ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED             0x00000008
291 #define ARCMSR_DRV2IOP_END_OF_INTERRUPT		0x00000010
292 
293 /* data tunnel buffer between user space program and its firmware */
294 /* user space data to iop 128bytes */
295 #define ARCMSR_MESSAGE_WBUFFER			      0x0000fe00
296 /* iop data to user space 128bytes */
297 #define ARCMSR_MESSAGE_RBUFFER			      0x0000ff00
298 /* iop message_rwbuffer for message command */
299 #define ARCMSR_MESSAGE_RWBUFFER			      0x0000fa00
300 
301 #define MEM_BASE0(x)	(u32 __iomem *)((unsigned long)acb->mem_base0 + x)
302 #define MEM_BASE1(x)	(u32 __iomem *)((unsigned long)acb->mem_base1 + x)
303 /*
304 ************************************************************************
305 **                SPEC. for Areca HBC adapter
306 ************************************************************************
307 */
308 #define ARCMSR_HBC_ISR_THROTTLING_LEVEL		12
309 #define ARCMSR_HBC_ISR_MAX_DONE_QUEUE		20
310 /* Host Interrupt Mask */
311 #define ARCMSR_HBCMU_UTILITY_A_ISR_MASK		0x00000001 /* When clear, the Utility_A interrupt routes to the host.*/
312 #define ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK	0x00000004 /* When clear, the General Outbound Doorbell interrupt routes to the host.*/
313 #define ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK	0x00000008 /* When clear, the Outbound Post List FIFO Not Empty interrupt routes to the host.*/
314 #define ARCMSR_HBCMU_ALL_INTMASKENABLE		0x0000000D /* disable all ISR */
315 /* Host Interrupt Status */
316 #define ARCMSR_HBCMU_UTILITY_A_ISR			0x00000001
317 	/*
318 	** Set when the Utility_A Interrupt bit is set in the Outbound Doorbell Register.
319 	** It clears by writing a 1 to the Utility_A bit in the Outbound Doorbell Clear Register or through automatic clearing (if enabled).
320 	*/
321 #define ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR		0x00000004
322 	/*
323 	** Set if Outbound Doorbell register bits 30:1 have a non-zero
324 	** value. This bit clears only when Outbound Doorbell bits
325 	** 30:1 are ALL clear. Only a write to the Outbound Doorbell
326 	** Clear register clears bits in the Outbound Doorbell register.
327 	*/
328 #define ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR	0x00000008
329 	/*
330 	** Set whenever the Outbound Post List Producer/Consumer
331 	** Register (FIFO) is not empty. It clears when the Outbound
332 	** Post List FIFO is empty.
333 	*/
334 #define ARCMSR_HBCMU_SAS_ALL_INT			0x00000010
335 	/*
336 	** This bit indicates a SAS interrupt from a source external to
337 	** the PCIe core. This bit is not maskable.
338 	*/
339 	/* DoorBell*/
340 #define ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK			0x00000002
341 #define ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK			0x00000004
342 	/*inbound message 0 ready*/
343 #define ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE		0x00000008
344 	/*more than 12 request completed in a time*/
345 #define ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING		0x00000010
346 #define ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK			0x00000002
347 	/*outbound DATA WRITE isr door bell clear*/
348 #define ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_DOORBELL_CLEAR	0x00000002
349 #define ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK			0x00000004
350 	/*outbound DATA READ isr door bell clear*/
351 #define ARCMSR_HBCMU_IOP2DRV_DATA_READ_DOORBELL_CLEAR	0x00000004
352 	/*outbound message 0 ready*/
353 #define ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE		0x00000008
354 	/*outbound message cmd isr door bell clear*/
355 #define ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR	0x00000008
356 	/*ARCMSR_HBAMU_MESSAGE_FIRMWARE_OK*/
357 #define ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK			0x80000000
358 /*
359 *******************************************************************************
360 **                SPEC. for Areca Type D adapter
361 *******************************************************************************
362 */
363 #define ARCMSR_ARC1214_CHIP_ID				0x00004
364 #define ARCMSR_ARC1214_CPU_MEMORY_CONFIGURATION		0x00008
365 #define ARCMSR_ARC1214_I2_HOST_INTERRUPT_MASK		0x00034
366 #define ARCMSR_ARC1214_SAMPLE_RESET			0x00100
367 #define ARCMSR_ARC1214_RESET_REQUEST			0x00108
368 #define ARCMSR_ARC1214_MAIN_INTERRUPT_STATUS		0x00200
369 #define ARCMSR_ARC1214_PCIE_F0_INTERRUPT_ENABLE		0x0020C
370 #define ARCMSR_ARC1214_INBOUND_MESSAGE0			0x00400
371 #define ARCMSR_ARC1214_INBOUND_MESSAGE1			0x00404
372 #define ARCMSR_ARC1214_OUTBOUND_MESSAGE0		0x00420
373 #define ARCMSR_ARC1214_OUTBOUND_MESSAGE1		0x00424
374 #define ARCMSR_ARC1214_INBOUND_DOORBELL			0x00460
375 #define ARCMSR_ARC1214_OUTBOUND_DOORBELL		0x00480
376 #define ARCMSR_ARC1214_OUTBOUND_DOORBELL_ENABLE		0x00484
377 #define ARCMSR_ARC1214_INBOUND_LIST_BASE_LOW		0x01000
378 #define ARCMSR_ARC1214_INBOUND_LIST_BASE_HIGH		0x01004
379 #define ARCMSR_ARC1214_INBOUND_LIST_WRITE_POINTER	0x01018
380 #define ARCMSR_ARC1214_OUTBOUND_LIST_BASE_LOW		0x01060
381 #define ARCMSR_ARC1214_OUTBOUND_LIST_BASE_HIGH		0x01064
382 #define ARCMSR_ARC1214_OUTBOUND_LIST_COPY_POINTER	0x0106C
383 #define ARCMSR_ARC1214_OUTBOUND_LIST_READ_POINTER	0x01070
384 #define ARCMSR_ARC1214_OUTBOUND_INTERRUPT_CAUSE		0x01088
385 #define ARCMSR_ARC1214_OUTBOUND_INTERRUPT_ENABLE	0x0108C
386 #define ARCMSR_ARC1214_MESSAGE_WBUFFER			0x02000
387 #define ARCMSR_ARC1214_MESSAGE_RBUFFER			0x02100
388 #define ARCMSR_ARC1214_MESSAGE_RWBUFFER			0x02200
389 /* Host Interrupt Mask */
390 #define ARCMSR_ARC1214_ALL_INT_ENABLE			0x00001010
391 #define ARCMSR_ARC1214_ALL_INT_DISABLE			0x00000000
392 /* Host Interrupt Status */
393 #define ARCMSR_ARC1214_OUTBOUND_DOORBELL_ISR		0x00001000
394 #define ARCMSR_ARC1214_OUTBOUND_POSTQUEUE_ISR		0x00000010
395 /* DoorBell*/
396 #define ARCMSR_ARC1214_DRV2IOP_DATA_IN_READY		0x00000001
397 #define ARCMSR_ARC1214_DRV2IOP_DATA_OUT_READ		0x00000002
398 /*inbound message 0 ready*/
399 #define ARCMSR_ARC1214_IOP2DRV_DATA_WRITE_OK		0x00000001
400 /*outbound DATA WRITE isr door bell clear*/
401 #define ARCMSR_ARC1214_IOP2DRV_DATA_READ_OK		0x00000002
402 /*outbound message 0 ready*/
403 #define ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE		0x02000000
404 /*outbound message cmd isr door bell clear*/
405 /*ARCMSR_HBAMU_MESSAGE_FIRMWARE_OK*/
406 #define ARCMSR_ARC1214_MESSAGE_FIRMWARE_OK		0x80000000
407 #define ARCMSR_ARC1214_OUTBOUND_LIST_INTERRUPT_CLEAR	0x00000001
408 /*
409 *******************************************************************************
410 **    ARECA SCSI COMMAND DESCRIPTOR BLOCK size 0x1F8 (504)
411 *******************************************************************************
412 */
413 struct ARCMSR_CDB
414 {
415 	uint8_t							Bus;
416 	uint8_t							TargetID;
417 	uint8_t							LUN;
418 	uint8_t							Function;
419 	uint8_t							CdbLength;
420 	uint8_t							sgcount;
421 	uint8_t							Flags;
422 #define ARCMSR_CDB_FLAG_SGL_BSIZE          0x01
423 #define ARCMSR_CDB_FLAG_BIOS               0x02
424 #define ARCMSR_CDB_FLAG_WRITE              0x04
425 #define ARCMSR_CDB_FLAG_SIMPLEQ            0x00
426 #define ARCMSR_CDB_FLAG_HEADQ              0x08
427 #define ARCMSR_CDB_FLAG_ORDEREDQ           0x10
428 
429 	uint8_t							msgPages;
430 	uint32_t						msgContext;
431 	uint32_t						DataLength;
432 	uint8_t							Cdb[16];
433 	uint8_t							DeviceStatus;
434 #define ARCMSR_DEV_CHECK_CONDITION	    0x02
435 #define ARCMSR_DEV_SELECT_TIMEOUT	    0xF0
436 #define ARCMSR_DEV_ABORTED		    0xF1
437 #define ARCMSR_DEV_INIT_FAIL		    0xF2
438 
439 	uint8_t							SenseData[15];
440 	union
441 	{
442 		struct SG32ENTRY                sg32entry[1];
443 		struct SG64ENTRY                sg64entry[1];
444 	} u;
445 };
446 /*
447 *******************************************************************************
448 **     Messaging Unit (MU) of the Intel R 80331 I/O processor(Type A) and Type B processor
449 *******************************************************************************
450 */
451 struct MessageUnit_A
452 {
453 	uint32_t	resrved0[4];			/*0000 000F*/
454 	uint32_t	inbound_msgaddr0;		/*0010 0013*/
455 	uint32_t	inbound_msgaddr1;		/*0014 0017*/
456 	uint32_t	outbound_msgaddr0;		/*0018 001B*/
457 	uint32_t	outbound_msgaddr1;		/*001C 001F*/
458 	uint32_t	inbound_doorbell;		/*0020 0023*/
459 	uint32_t	inbound_intstatus;		/*0024 0027*/
460 	uint32_t	inbound_intmask;		/*0028 002B*/
461 	uint32_t	outbound_doorbell;		/*002C 002F*/
462 	uint32_t	outbound_intstatus;		/*0030 0033*/
463 	uint32_t	outbound_intmask;		/*0034 0037*/
464 	uint32_t	reserved1[2];			/*0038 003F*/
465 	uint32_t	inbound_queueport;		/*0040 0043*/
466 	uint32_t	outbound_queueport;     	/*0044 0047*/
467 	uint32_t	reserved2[2];			/*0048 004F*/
468 	uint32_t	reserved3[492];			/*0050 07FF 492*/
469 	uint32_t	reserved4[128];			/*0800 09FF 128*/
470 	uint32_t	message_rwbuffer[256];		/*0a00 0DFF 256*/
471 	uint32_t	message_wbuffer[32];		/*0E00 0E7F  32*/
472 	uint32_t	reserved5[32];			/*0E80 0EFF  32*/
473 	uint32_t	message_rbuffer[32];		/*0F00 0F7F  32*/
474 	uint32_t	reserved6[32];			/*0F80 0FFF  32*/
475 };
476 
477 struct MessageUnit_B
478 {
479 	uint32_t	post_qbuffer[ARCMSR_MAX_HBB_POSTQUEUE];
480 	uint32_t	done_qbuffer[ARCMSR_MAX_HBB_POSTQUEUE];
481 	uint32_t	postq_index;
482 	uint32_t	doneq_index;
483 	uint32_t		__iomem *drv2iop_doorbell;
484 	uint32_t		__iomem *drv2iop_doorbell_mask;
485 	uint32_t		__iomem *iop2drv_doorbell;
486 	uint32_t		__iomem *iop2drv_doorbell_mask;
487 	uint32_t		__iomem *message_rwbuffer;
488 	uint32_t		__iomem *message_wbuffer;
489 	uint32_t		__iomem *message_rbuffer;
490 };
491 /*
492 *********************************************************************
493 ** LSI
494 *********************************************************************
495 */
496 struct MessageUnit_C{
497 	uint32_t	message_unit_status;			/*0000 0003*/
498 	uint32_t	slave_error_attribute;			/*0004 0007*/
499 	uint32_t	slave_error_address;			/*0008 000B*/
500 	uint32_t	posted_outbound_doorbell;		/*000C 000F*/
501 	uint32_t	master_error_attribute;			/*0010 0013*/
502 	uint32_t	master_error_address_low;		/*0014 0017*/
503 	uint32_t	master_error_address_high;		/*0018 001B*/
504 	uint32_t	hcb_size;				/*001C 001F*/
505 	uint32_t	inbound_doorbell;			/*0020 0023*/
506 	uint32_t	diagnostic_rw_data;			/*0024 0027*/
507 	uint32_t	diagnostic_rw_address_low;		/*0028 002B*/
508 	uint32_t	diagnostic_rw_address_high;		/*002C 002F*/
509 	uint32_t	host_int_status;				/*0030 0033*/
510 	uint32_t	host_int_mask;				/*0034 0037*/
511 	uint32_t	dcr_data;				/*0038 003B*/
512 	uint32_t	dcr_address;				/*003C 003F*/
513 	uint32_t	inbound_queueport;			/*0040 0043*/
514 	uint32_t	outbound_queueport;			/*0044 0047*/
515 	uint32_t	hcb_pci_address_low;			/*0048 004B*/
516 	uint32_t	hcb_pci_address_high;			/*004C 004F*/
517 	uint32_t	iop_int_status;				/*0050 0053*/
518 	uint32_t	iop_int_mask;				/*0054 0057*/
519 	uint32_t	iop_inbound_queue_port;			/*0058 005B*/
520 	uint32_t	iop_outbound_queue_port;		/*005C 005F*/
521 	uint32_t	inbound_free_list_index;			/*0060 0063*/
522 	uint32_t	inbound_post_list_index;			/*0064 0067*/
523 	uint32_t	outbound_free_list_index;			/*0068 006B*/
524 	uint32_t	outbound_post_list_index;			/*006C 006F*/
525 	uint32_t	inbound_doorbell_clear;			/*0070 0073*/
526 	uint32_t	i2o_message_unit_control;			/*0074 0077*/
527 	uint32_t	last_used_message_source_address_low;	/*0078 007B*/
528 	uint32_t	last_used_message_source_address_high;	/*007C 007F*/
529 	uint32_t	pull_mode_data_byte_count[4];		/*0080 008F*/
530 	uint32_t	message_dest_address_index;		/*0090 0093*/
531 	uint32_t	done_queue_not_empty_int_counter_timer;	/*0094 0097*/
532 	uint32_t	utility_A_int_counter_timer;		/*0098 009B*/
533 	uint32_t	outbound_doorbell;			/*009C 009F*/
534 	uint32_t	outbound_doorbell_clear;			/*00A0 00A3*/
535 	uint32_t	message_source_address_index;		/*00A4 00A7*/
536 	uint32_t	message_done_queue_index;		/*00A8 00AB*/
537 	uint32_t	reserved0;				/*00AC 00AF*/
538 	uint32_t	inbound_msgaddr0;			/*00B0 00B3*/
539 	uint32_t	inbound_msgaddr1;			/*00B4 00B7*/
540 	uint32_t	outbound_msgaddr0;			/*00B8 00BB*/
541 	uint32_t	outbound_msgaddr1;			/*00BC 00BF*/
542 	uint32_t	inbound_queueport_low;			/*00C0 00C3*/
543 	uint32_t	inbound_queueport_high;			/*00C4 00C7*/
544 	uint32_t	outbound_queueport_low;			/*00C8 00CB*/
545 	uint32_t	outbound_queueport_high;		/*00CC 00CF*/
546 	uint32_t	iop_inbound_queue_port_low;		/*00D0 00D3*/
547 	uint32_t	iop_inbound_queue_port_high;		/*00D4 00D7*/
548 	uint32_t	iop_outbound_queue_port_low;		/*00D8 00DB*/
549 	uint32_t	iop_outbound_queue_port_high;		/*00DC 00DF*/
550 	uint32_t	message_dest_queue_port_low;		/*00E0 00E3*/
551 	uint32_t	message_dest_queue_port_high;		/*00E4 00E7*/
552 	uint32_t	last_used_message_dest_address_low;	/*00E8 00EB*/
553 	uint32_t	last_used_message_dest_address_high;	/*00EC 00EF*/
554 	uint32_t	message_done_queue_base_address_low;	/*00F0 00F3*/
555 	uint32_t	message_done_queue_base_address_high;	/*00F4 00F7*/
556 	uint32_t	host_diagnostic;				/*00F8 00FB*/
557 	uint32_t	write_sequence;				/*00FC 00FF*/
558 	uint32_t	reserved1[34];				/*0100 0187*/
559 	uint32_t	reserved2[1950];				/*0188 1FFF*/
560 	uint32_t	message_wbuffer[32];			/*2000 207F*/
561 	uint32_t	reserved3[32];				/*2080 20FF*/
562 	uint32_t	message_rbuffer[32];			/*2100 217F*/
563 	uint32_t	reserved4[32];				/*2180 21FF*/
564 	uint32_t	msgcode_rwbuffer[256];			/*2200 23FF*/
565 };
566 /*
567 *********************************************************************
568 **     Messaging Unit (MU) of Type D processor
569 *********************************************************************
570 */
571 struct InBound_SRB {
572 	uint32_t addressLow; /* pointer to SRB block */
573 	uint32_t addressHigh;
574 	uint32_t length; /* in DWORDs */
575 	uint32_t reserved0;
576 };
577 
578 struct OutBound_SRB {
579 	uint32_t addressLow; /* pointer to SRB block */
580 	uint32_t addressHigh;
581 };
582 
583 struct MessageUnit_D {
584 	struct InBound_SRB	post_qbuffer[ARCMSR_MAX_ARC1214_POSTQUEUE];
585 	volatile struct OutBound_SRB
586 				done_qbuffer[ARCMSR_MAX_ARC1214_DONEQUEUE];
587 	u16 postq_index;
588 	volatile u16 doneq_index;
589 	u32 __iomem *chip_id;			/* 0x00004 */
590 	u32 __iomem *cpu_mem_config;		/* 0x00008 */
591 	u32 __iomem *i2o_host_interrupt_mask;	/* 0x00034 */
592 	u32 __iomem *sample_at_reset;		/* 0x00100 */
593 	u32 __iomem *reset_request;		/* 0x00108 */
594 	u32 __iomem *host_int_status;		/* 0x00200 */
595 	u32 __iomem *pcief0_int_enable;		/* 0x0020C */
596 	u32 __iomem *inbound_msgaddr0;		/* 0x00400 */
597 	u32 __iomem *inbound_msgaddr1;		/* 0x00404 */
598 	u32 __iomem *outbound_msgaddr0;		/* 0x00420 */
599 	u32 __iomem *outbound_msgaddr1;		/* 0x00424 */
600 	u32 __iomem *inbound_doorbell;		/* 0x00460 */
601 	u32 __iomem *outbound_doorbell;		/* 0x00480 */
602 	u32 __iomem *outbound_doorbell_enable;	/* 0x00484 */
603 	u32 __iomem *inboundlist_base_low;	/* 0x01000 */
604 	u32 __iomem *inboundlist_base_high;	/* 0x01004 */
605 	u32 __iomem *inboundlist_write_pointer;	/* 0x01018 */
606 	u32 __iomem *outboundlist_base_low;	/* 0x01060 */
607 	u32 __iomem *outboundlist_base_high;	/* 0x01064 */
608 	u32 __iomem *outboundlist_copy_pointer;	/* 0x0106C */
609 	u32 __iomem *outboundlist_read_pointer;	/* 0x01070 0x01072 */
610 	u32 __iomem *outboundlist_interrupt_cause;	/* 0x1088 */
611 	u32 __iomem *outboundlist_interrupt_enable;	/* 0x108C */
612 	u32 __iomem *message_wbuffer;		/* 0x2000 */
613 	u32 __iomem *message_rbuffer;		/* 0x2100 */
614 	u32 __iomem *msgcode_rwbuffer;		/* 0x2200 */
615 };
616 /*
617 *******************************************************************************
618 **                 Adapter Control Block
619 *******************************************************************************
620 */
621 struct AdapterControlBlock
622 {
623 	uint32_t  adapter_type;                /* adapter A,B..... */
624 	#define ACB_ADAPTER_TYPE_A            0x00000001	/* hba I IOP */
625 	#define ACB_ADAPTER_TYPE_B            0x00000002	/* hbb M IOP */
626 	#define ACB_ADAPTER_TYPE_C            0x00000004	/* hbc P IOP */
627 	#define ACB_ADAPTER_TYPE_D            0x00000008	/* hbd A IOP */
628 	u32				roundup_ccbsize;
629 	struct pci_dev *		pdev;
630 	struct Scsi_Host *		host;
631 	unsigned long			vir2phy_offset;
632 	/* Offset is used in making arc cdb physical to virtual calculations */
633 	uint32_t			outbound_int_enable;
634 	uint32_t			cdb_phyaddr_hi32;
635 	uint32_t			reg_mu_acc_handle0;
636 	spinlock_t                      			eh_lock;
637 	spinlock_t                      			ccblist_lock;
638 	spinlock_t			postq_lock;
639 	spinlock_t			doneq_lock;
640 	spinlock_t			rqbuffer_lock;
641 	spinlock_t			wqbuffer_lock;
642 	union {
643 		struct MessageUnit_A __iomem *pmuA;
644 		struct MessageUnit_B 	*pmuB;
645 		struct MessageUnit_C __iomem *pmuC;
646 		struct MessageUnit_D 	*pmuD;
647 	};
648 	/* message unit ATU inbound base address0 */
649 	void __iomem *mem_base0;
650 	void __iomem *mem_base1;
651 	uint32_t			acb_flags;
652 	u16			dev_id;
653 	uint8_t                   		adapter_index;
654 	#define ACB_F_SCSISTOPADAPTER         	0x0001
655 	#define ACB_F_MSG_STOP_BGRB     	0x0002
656 	/* stop RAID background rebuild */
657 	#define ACB_F_MSG_START_BGRB          	0x0004
658 	/* stop RAID background rebuild */
659 	#define ACB_F_IOPDATA_OVERFLOW        	0x0008
660 	/* iop message data rqbuffer overflow */
661 	#define ACB_F_MESSAGE_WQBUFFER_CLEARED	0x0010
662 	/* message clear wqbuffer */
663 	#define ACB_F_MESSAGE_RQBUFFER_CLEARED  0x0020
664 	/* message clear rqbuffer */
665 	#define ACB_F_MESSAGE_WQBUFFER_READED   0x0040
666 	#define ACB_F_BUS_RESET               	0x0080
667 	#define ACB_F_BUS_HANG_ON		0x0800/* need hardware reset bus */
668 
669 	#define ACB_F_IOP_INITED              	0x0100
670 	/* iop init */
671 	#define ACB_F_ABORT				0x0200
672 	#define ACB_F_FIRMWARE_TRAP           		0x0400
673 	struct CommandControlBlock *			pccb_pool[ARCMSR_MAX_FREECCB_NUM];
674 	/* used for memory free */
675 	struct list_head		ccb_free_list;
676 	/* head of free ccb list */
677 
678 	atomic_t			ccboutstandingcount;
679 	/*The present outstanding command number that in the IOP that
680 					waiting for being handled by FW*/
681 
682 	void *				dma_coherent;
683 	/* dma_coherent used for memory free */
684 	dma_addr_t			dma_coherent_handle;
685 	/* dma_coherent_handle used for memory free */
686 	dma_addr_t				dma_coherent_handle2;
687 	void				*dma_coherent2;
688 	unsigned int				uncache_size;
689 	uint8_t				rqbuffer[ARCMSR_MAX_QBUFFER];
690 	/* data collection buffer for read from 80331 */
691 	int32_t				rqbuf_getIndex;
692 	/* first of read buffer  */
693 	int32_t				rqbuf_putIndex;
694 	/* last of read buffer   */
695 	uint8_t				wqbuffer[ARCMSR_MAX_QBUFFER];
696 	/* data collection buffer for write to 80331  */
697 	int32_t				wqbuf_getIndex;
698 	/* first of write buffer */
699 	int32_t				wqbuf_putIndex;
700 	/* last of write buffer  */
701 	uint8_t				devstate[ARCMSR_MAX_TARGETID][ARCMSR_MAX_TARGETLUN];
702 	/* id0 ..... id15, lun0...lun7 */
703 #define ARECA_RAID_GONE               0x55
704 #define ARECA_RAID_GOOD               0xaa
705 	uint32_t			num_resets;
706 	uint32_t			num_aborts;
707 	uint32_t			signature;
708 	uint32_t			firm_request_len;
709 	uint32_t			firm_numbers_queue;
710 	uint32_t			firm_sdram_size;
711 	uint32_t			firm_hd_channels;
712 	uint32_t                           	firm_cfg_version;
713 	char			firm_model[12];
714 	char			firm_version[20];
715 	char			device_map[20];			/*21,84-99*/
716 	struct work_struct 		arcmsr_do_message_isr_bh;
717 	struct timer_list		eternal_timer;
718 	unsigned short		fw_flag;
719 				#define	FW_NORMAL	0x0000
720 				#define	FW_BOG		0x0001
721 				#define	FW_DEADLOCK	0x0010
722 	atomic_t 			rq_map_token;
723 	atomic_t			ante_token_value;
724 	uint32_t	maxOutstanding;
725 	int		vector_count;
726 };/* HW_DEVICE_EXTENSION */
727 /*
728 *******************************************************************************
729 **                   Command Control Block
730 **             this CCB length must be 32 bytes boundary
731 *******************************************************************************
732 */
733 struct CommandControlBlock{
734 	/*x32:sizeof struct_CCB=(32+60)byte, x64:sizeof struct_CCB=(64+60)byte*/
735 	struct list_head		list;				/*x32: 8byte, x64: 16byte*/
736 	struct scsi_cmnd		*pcmd;				/*8 bytes pointer of linux scsi command */
737 	struct AdapterControlBlock	*acb;				/*x32: 4byte, x64: 8byte*/
738 	uint32_t			cdb_phyaddr;			/*x32: 4byte, x64: 4byte*/
739 	uint32_t			arc_cdb_size;			/*x32:4byte,x64:4byte*/
740 	uint16_t			ccb_flags;			/*x32: 2byte, x64: 2byte*/
741 	#define			CCB_FLAG_READ			0x0000
742 	#define			CCB_FLAG_WRITE		0x0001
743 	#define			CCB_FLAG_ERROR		0x0002
744 	#define			CCB_FLAG_FLUSHCACHE		0x0004
745 	#define			CCB_FLAG_MASTER_ABORTED	0x0008
746 	uint16_t                        	startdone;			/*x32:2byte,x32:2byte*/
747 	#define			ARCMSR_CCB_DONE   	        	0x0000
748 	#define			ARCMSR_CCB_START		0x55AA
749 	#define			ARCMSR_CCB_ABORTED		0xAA55
750 	#define			ARCMSR_CCB_ILLEGAL		0xFFFF
751 	#if BITS_PER_LONG == 64
752 	/*  ======================512+64 bytes========================  */
753 		uint32_t                        	reserved[5];		/*24 byte*/
754 	#else
755 	/*  ======================512+32 bytes========================  */
756 		uint32_t                        	reserved;		/*8  byte*/
757 	#endif
758 	/*  =======================================================   */
759 	struct ARCMSR_CDB		arcmsr_cdb;
760 };
761 /*
762 *******************************************************************************
763 **    ARECA SCSI sense data
764 *******************************************************************************
765 */
766 struct SENSE_DATA
767 {
768 	uint8_t				ErrorCode:7;
769 #define SCSI_SENSE_CURRENT_ERRORS	0x70
770 #define SCSI_SENSE_DEFERRED_ERRORS	0x71
771 	uint8_t				Valid:1;
772 	uint8_t				SegmentNumber;
773 	uint8_t				SenseKey:4;
774 	uint8_t				Reserved:1;
775 	uint8_t				IncorrectLength:1;
776 	uint8_t				EndOfMedia:1;
777 	uint8_t				FileMark:1;
778 	uint8_t				Information[4];
779 	uint8_t				AdditionalSenseLength;
780 	uint8_t				CommandSpecificInformation[4];
781 	uint8_t				AdditionalSenseCode;
782 	uint8_t				AdditionalSenseCodeQualifier;
783 	uint8_t				FieldReplaceableUnitCode;
784 	uint8_t				SenseKeySpecific[3];
785 };
786 /*
787 *******************************************************************************
788 **  Outbound Interrupt Status Register - OISR
789 *******************************************************************************
790 */
791 #define     ARCMSR_MU_OUTBOUND_INTERRUPT_STATUS_REG                 0x30
792 #define     ARCMSR_MU_OUTBOUND_PCI_INT                              0x10
793 #define     ARCMSR_MU_OUTBOUND_POSTQUEUE_INT                        0x08
794 #define     ARCMSR_MU_OUTBOUND_DOORBELL_INT                         0x04
795 #define     ARCMSR_MU_OUTBOUND_MESSAGE1_INT                         0x02
796 #define     ARCMSR_MU_OUTBOUND_MESSAGE0_INT                         0x01
797 #define     ARCMSR_MU_OUTBOUND_HANDLE_INT                 \
798                     (ARCMSR_MU_OUTBOUND_MESSAGE0_INT      \
799                      |ARCMSR_MU_OUTBOUND_MESSAGE1_INT     \
800                      |ARCMSR_MU_OUTBOUND_DOORBELL_INT     \
801                      |ARCMSR_MU_OUTBOUND_POSTQUEUE_INT    \
802                      |ARCMSR_MU_OUTBOUND_PCI_INT)
803 /*
804 *******************************************************************************
805 **  Outbound Interrupt Mask Register - OIMR
806 *******************************************************************************
807 */
808 #define     ARCMSR_MU_OUTBOUND_INTERRUPT_MASK_REG                   0x34
809 #define     ARCMSR_MU_OUTBOUND_PCI_INTMASKENABLE                    0x10
810 #define     ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE              0x08
811 #define     ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE               0x04
812 #define     ARCMSR_MU_OUTBOUND_MESSAGE1_INTMASKENABLE               0x02
813 #define     ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE               0x01
814 #define     ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE                    0x1F
815 
816 extern void arcmsr_write_ioctldata2iop(struct AdapterControlBlock *);
817 extern uint32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *,
818 	struct QBUFFER __iomem *);
819 extern void arcmsr_clear_iop2drv_rqueue_buffer(struct AdapterControlBlock *);
820 extern struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *);
821 extern struct device_attribute *arcmsr_host_attrs[];
822 extern int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *);
823 void arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb);
824