crypto: picoxcell - Fix error handling in spacc_probe()
[sfrench/cifs-2.6.git] / drivers / scsi / arcmsr / arcmsr.h
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);