linux/drivers/scsi/arcmsr/arcmsr.h
<<
>>
Prefs
   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>
  46struct 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           "v1.30.00.04-20140919"
  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/*
  78**********************************************************************************
  79**
  80**********************************************************************************
  81*/
  82#define ARC_SUCCESS                                                       0
  83#define ARC_FAILURE                                                       1
  84/*
  85*******************************************************************************
  86**        split 64bits dma addressing
  87*******************************************************************************
  88*/
  89#define dma_addr_hi32(addr)               (uint32_t) ((addr>>16)>>16)
  90#define dma_addr_lo32(addr)               (uint32_t) (addr & 0xffffffff)
  91/*
  92*******************************************************************************
  93**        MESSAGE CONTROL CODE
  94*******************************************************************************
  95*/
  96struct CMD_MESSAGE
  97{
  98      uint32_t HeaderLength;
  99      uint8_t  Signature[8];
 100      uint32_t Timeout;
 101      uint32_t ControlCode;
 102      uint32_t ReturnCode;
 103      uint32_t Length;
 104};
 105/*
 106*******************************************************************************
 107**        IOP Message Transfer Data for user space
 108*******************************************************************************
 109*/
 110#define ARCMSR_API_DATA_BUFLEN  1032
 111struct CMD_MESSAGE_FIELD
 112{
 113    struct CMD_MESSAGE                  cmdmessage;
 114    uint8_t                             messagedatabuffer[ARCMSR_API_DATA_BUFLEN];
 115};
 116/* IOP message transfer */
 117#define ARCMSR_MESSAGE_FAIL                     0x0001
 118/* DeviceType */
 119#define ARECA_SATA_RAID                         0x90000000
 120/* FunctionCode */
 121#define FUNCTION_READ_RQBUFFER                  0x0801
 122#define FUNCTION_WRITE_WQBUFFER                 0x0802
 123#define FUNCTION_CLEAR_RQBUFFER                 0x0803
 124#define FUNCTION_CLEAR_WQBUFFER                 0x0804
 125#define FUNCTION_CLEAR_ALLQBUFFER               0x0805
 126#define FUNCTION_RETURN_CODE_3F                 0x0806
 127#define FUNCTION_SAY_HELLO                      0x0807
 128#define FUNCTION_SAY_GOODBYE                    0x0808
 129#define FUNCTION_FLUSH_ADAPTER_CACHE            0x0809
 130#define FUNCTION_GET_FIRMWARE_STATUS                    0x080A
 131#define FUNCTION_HARDWARE_RESET                 0x080B
 132/* ARECA IO CONTROL CODE*/
 133#define ARCMSR_MESSAGE_READ_RQBUFFER       \
 134        ARECA_SATA_RAID | FUNCTION_READ_RQBUFFER
 135#define ARCMSR_MESSAGE_WRITE_WQBUFFER      \
 136        ARECA_SATA_RAID | FUNCTION_WRITE_WQBUFFER
 137#define ARCMSR_MESSAGE_CLEAR_RQBUFFER      \
 138        ARECA_SATA_RAID | FUNCTION_CLEAR_RQBUFFER
 139#define ARCMSR_MESSAGE_CLEAR_WQBUFFER      \
 140        ARECA_SATA_RAID | FUNCTION_CLEAR_WQBUFFER
 141#define ARCMSR_MESSAGE_CLEAR_ALLQBUFFER    \
 142        ARECA_SATA_RAID | FUNCTION_CLEAR_ALLQBUFFER
 143#define ARCMSR_MESSAGE_RETURN_CODE_3F      \
 144        ARECA_SATA_RAID | FUNCTION_RETURN_CODE_3F
 145#define ARCMSR_MESSAGE_SAY_HELLO           \
 146        ARECA_SATA_RAID | FUNCTION_SAY_HELLO
 147#define ARCMSR_MESSAGE_SAY_GOODBYE         \
 148        ARECA_SATA_RAID | FUNCTION_SAY_GOODBYE
 149#define ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE \
 150        ARECA_SATA_RAID | FUNCTION_FLUSH_ADAPTER_CACHE
 151/* ARECA IOCTL ReturnCode */
 152#define ARCMSR_MESSAGE_RETURNCODE_OK            0x00000001
 153#define ARCMSR_MESSAGE_RETURNCODE_ERROR         0x00000006
 154#define ARCMSR_MESSAGE_RETURNCODE_3F            0x0000003F
 155#define ARCMSR_MESSAGE_RETURNCODE_BUS_HANG_ON   0x00000088
 156/*
 157*************************************************************
 158**   structure for holding DMA address data
 159*************************************************************
 160*/
 161#define IS_DMA64                        (sizeof(dma_addr_t) == 8)
 162#define IS_SG64_ADDR                0x01000000 /* bit24 */
 163struct  SG32ENTRY
 164{
 165        __le32                                  length;
 166        __le32                                  address;
 167}__attribute__ ((packed));
 168struct  SG64ENTRY
 169{
 170        __le32                                  length;
 171        __le32                                  address;
 172        __le32                                  addresshigh;
 173}__attribute__ ((packed));
 174/*
 175********************************************************************
 176**      Q Buffer of IOP Message Transfer
 177********************************************************************
 178*/
 179struct QBUFFER
 180{
 181        uint32_t      data_len;
 182        uint8_t       data[124];
 183};
 184/*
 185*******************************************************************************
 186**      FIRMWARE INFO for Intel IOP R 80331 processor (Type A)
 187*******************************************************************************
 188*/
 189struct FIRMWARE_INFO
 190{
 191        uint32_t      signature;                /*0, 00-03*/
 192        uint32_t      request_len;              /*1, 04-07*/
 193        uint32_t      numbers_queue;            /*2, 08-11*/
 194        uint32_t      sdram_size;               /*3, 12-15*/
 195        uint32_t      ide_channels;             /*4, 16-19*/
 196        char          vendor[40];               /*5, 20-59*/
 197        char          model[8];                 /*15, 60-67*/
 198        char          firmware_ver[16];         /*17, 68-83*/
 199        char          device_map[16];           /*21, 84-99*/
 200        uint32_t                cfgVersion;                     /*25,100-103 Added for checking of new firmware capability*/
 201        uint8_t         cfgSerial[16];                  /*26,104-119*/
 202        uint32_t                cfgPicStatus;                   /*30,120-123*/  
 203};
 204/* signature of set and get firmware config */
 205#define ARCMSR_SIGNATURE_GET_CONFIG                   0x87974060
 206#define ARCMSR_SIGNATURE_SET_CONFIG                   0x87974063
 207/* message code of inbound message register */
 208#define ARCMSR_INBOUND_MESG0_NOP                      0x00000000
 209#define ARCMSR_INBOUND_MESG0_GET_CONFIG               0x00000001
 210#define ARCMSR_INBOUND_MESG0_SET_CONFIG               0x00000002
 211#define ARCMSR_INBOUND_MESG0_ABORT_CMD                0x00000003
 212#define ARCMSR_INBOUND_MESG0_STOP_BGRB                0x00000004
 213#define ARCMSR_INBOUND_MESG0_FLUSH_CACHE              0x00000005
 214#define ARCMSR_INBOUND_MESG0_START_BGRB               0x00000006
 215#define ARCMSR_INBOUND_MESG0_CHK331PENDING            0x00000007
 216#define ARCMSR_INBOUND_MESG0_SYNC_TIMER               0x00000008
 217/* doorbell interrupt generator */
 218#define ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK           0x00000001
 219#define ARCMSR_INBOUND_DRIVER_DATA_READ_OK            0x00000002
 220#define ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK          0x00000001
 221#define ARCMSR_OUTBOUND_IOP331_DATA_READ_OK           0x00000002
 222/* ccb areca cdb flag */
 223#define ARCMSR_CCBPOST_FLAG_SGL_BSIZE                 0x80000000
 224#define ARCMSR_CCBPOST_FLAG_IAM_BIOS                  0x40000000
 225#define ARCMSR_CCBREPLY_FLAG_IAM_BIOS                 0x40000000
 226#define ARCMSR_CCBREPLY_FLAG_ERROR_MODE0              0x10000000
 227#define ARCMSR_CCBREPLY_FLAG_ERROR_MODE1              0x00000001
 228/* outbound firmware ok */
 229#define ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK             0x80000000
 230/* ARC-1680 Bus Reset*/
 231#define ARCMSR_ARC1680_BUS_RESET                                0x00000003
 232/* ARC-1880 Bus Reset*/
 233#define ARCMSR_ARC1880_RESET_ADAPTER                            0x00000024
 234#define ARCMSR_ARC1880_DiagWrite_ENABLE                 0x00000080
 235
 236/*
 237************************************************************************
 238**                SPEC. for Areca Type B adapter
 239************************************************************************
 240*/
 241/* ARECA HBB COMMAND for its FIRMWARE */
 242/* window of "instruction flags" from driver to iop */
 243#define ARCMSR_DRV2IOP_DOORBELL                       0x00020400
 244#define ARCMSR_DRV2IOP_DOORBELL_MASK                  0x00020404
 245/* window of "instruction flags" from iop to driver */
 246#define ARCMSR_IOP2DRV_DOORBELL                       0x00020408
 247#define ARCMSR_IOP2DRV_DOORBELL_MASK                  0x0002040C
 248/* ARECA FLAG LANGUAGE */
 249/* ioctl transfer */
 250#define ARCMSR_IOP2DRV_DATA_WRITE_OK                  0x00000001
 251/* ioctl transfer */
 252#define ARCMSR_IOP2DRV_DATA_READ_OK                   0x00000002
 253#define ARCMSR_IOP2DRV_CDB_DONE                       0x00000004
 254#define ARCMSR_IOP2DRV_MESSAGE_CMD_DONE               0x00000008
 255
 256#define ARCMSR_DOORBELL_HANDLE_INT                    0x0000000F
 257#define ARCMSR_DOORBELL_INT_CLEAR_PATTERN             0xFF00FFF0
 258#define ARCMSR_MESSAGE_INT_CLEAR_PATTERN              0xFF00FFF7
 259/* (ARCMSR_INBOUND_MESG0_GET_CONFIG<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
 260#define ARCMSR_MESSAGE_GET_CONFIG                     0x00010008
 261/* (ARCMSR_INBOUND_MESG0_SET_CONFIG<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
 262#define ARCMSR_MESSAGE_SET_CONFIG                     0x00020008
 263/* (ARCMSR_INBOUND_MESG0_ABORT_CMD<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
 264#define ARCMSR_MESSAGE_ABORT_CMD                      0x00030008
 265/* (ARCMSR_INBOUND_MESG0_STOP_BGRB<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
 266#define ARCMSR_MESSAGE_STOP_BGRB                      0x00040008
 267/* (ARCMSR_INBOUND_MESG0_FLUSH_CACHE<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
 268#define ARCMSR_MESSAGE_FLUSH_CACHE                    0x00050008
 269/* (ARCMSR_INBOUND_MESG0_START_BGRB<<16)|ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED) */
 270#define ARCMSR_MESSAGE_START_BGRB                     0x00060008
 271#define ARCMSR_MESSAGE_START_DRIVER_MODE              0x000E0008
 272#define ARCMSR_MESSAGE_SET_POST_WINDOW                0x000F0008
 273#define ARCMSR_MESSAGE_ACTIVE_EOI_MODE              0x00100008
 274/* ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK */
 275#define ARCMSR_MESSAGE_FIRMWARE_OK                    0x80000000
 276/* ioctl transfer */
 277#define ARCMSR_DRV2IOP_DATA_WRITE_OK                  0x00000001
 278/* ioctl transfer */
 279#define ARCMSR_DRV2IOP_DATA_READ_OK                   0x00000002
 280#define ARCMSR_DRV2IOP_CDB_POSTED                     0x00000004
 281#define ARCMSR_DRV2IOP_MESSAGE_CMD_POSTED             0x00000008
 282#define ARCMSR_DRV2IOP_END_OF_INTERRUPT         0x00000010
 283
 284/* data tunnel buffer between user space program and its firmware */
 285/* user space data to iop 128bytes */
 286#define ARCMSR_MESSAGE_WBUFFER                        0x0000fe00
 287/* iop data to user space 128bytes */
 288#define ARCMSR_MESSAGE_RBUFFER                        0x0000ff00
 289/* iop message_rwbuffer for message command */
 290#define ARCMSR_MESSAGE_RWBUFFER                       0x0000fa00
 291/* 
 292************************************************************************
 293**                SPEC. for Areca HBC adapter
 294************************************************************************
 295*/
 296#define ARCMSR_HBC_ISR_THROTTLING_LEVEL         12
 297#define ARCMSR_HBC_ISR_MAX_DONE_QUEUE           20
 298/* Host Interrupt Mask */
 299#define ARCMSR_HBCMU_UTILITY_A_ISR_MASK         0x00000001 /* When clear, the Utility_A interrupt routes to the host.*/
 300#define ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR_MASK 0x00000004 /* When clear, the General Outbound Doorbell interrupt routes to the host.*/
 301#define ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR_MASK        0x00000008 /* When clear, the Outbound Post List FIFO Not Empty interrupt routes to the host.*/
 302#define ARCMSR_HBCMU_ALL_INTMASKENABLE          0x0000000D /* disable all ISR */
 303/* Host Interrupt Status */
 304#define ARCMSR_HBCMU_UTILITY_A_ISR                      0x00000001
 305        /*
 306        ** Set when the Utility_A Interrupt bit is set in the Outbound Doorbell Register.
 307        ** It clears by writing a 1 to the Utility_A bit in the Outbound Doorbell Clear Register or through automatic clearing (if enabled).
 308        */
 309#define ARCMSR_HBCMU_OUTBOUND_DOORBELL_ISR              0x00000004
 310        /*
 311        ** Set if Outbound Doorbell register bits 30:1 have a non-zero
 312        ** value. This bit clears only when Outbound Doorbell bits
 313        ** 30:1 are ALL clear. Only a write to the Outbound Doorbell
 314        ** Clear register clears bits in the Outbound Doorbell register.
 315        */
 316#define ARCMSR_HBCMU_OUTBOUND_POSTQUEUE_ISR     0x00000008
 317        /*
 318        ** Set whenever the Outbound Post List Producer/Consumer
 319        ** Register (FIFO) is not empty. It clears when the Outbound
 320        ** Post List FIFO is empty.
 321        */
 322#define ARCMSR_HBCMU_SAS_ALL_INT                        0x00000010
 323        /*
 324        ** This bit indicates a SAS interrupt from a source external to
 325        ** the PCIe core. This bit is not maskable.
 326        */
 327        /* DoorBell*/
 328#define ARCMSR_HBCMU_DRV2IOP_DATA_WRITE_OK                      0x00000002
 329#define ARCMSR_HBCMU_DRV2IOP_DATA_READ_OK                       0x00000004
 330        /*inbound message 0 ready*/
 331#define ARCMSR_HBCMU_DRV2IOP_MESSAGE_CMD_DONE           0x00000008
 332        /*more than 12 request completed in a time*/
 333#define ARCMSR_HBCMU_DRV2IOP_POSTQUEUE_THROTTLING               0x00000010
 334#define ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK                      0x00000002
 335        /*outbound DATA WRITE isr door bell clear*/
 336#define ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_DOORBELL_CLEAR  0x00000002
 337#define ARCMSR_HBCMU_IOP2DRV_DATA_READ_OK                       0x00000004
 338        /*outbound DATA READ isr door bell clear*/
 339#define ARCMSR_HBCMU_IOP2DRV_DATA_READ_DOORBELL_CLEAR   0x00000004
 340        /*outbound message 0 ready*/
 341#define ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE           0x00000008
 342        /*outbound message cmd isr door bell clear*/
 343#define ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR    0x00000008
 344        /*ARCMSR_HBAMU_MESSAGE_FIRMWARE_OK*/
 345#define ARCMSR_HBCMU_MESSAGE_FIRMWARE_OK                        0x80000000
 346/*
 347*******************************************************************************
 348**                SPEC. for Areca Type D adapter
 349*******************************************************************************
 350*/
 351#define ARCMSR_ARC1214_CHIP_ID                          0x00004
 352#define ARCMSR_ARC1214_CPU_MEMORY_CONFIGURATION         0x00008
 353#define ARCMSR_ARC1214_I2_HOST_INTERRUPT_MASK           0x00034
 354#define ARCMSR_ARC1214_SAMPLE_RESET                     0x00100
 355#define ARCMSR_ARC1214_RESET_REQUEST                    0x00108
 356#define ARCMSR_ARC1214_MAIN_INTERRUPT_STATUS            0x00200
 357#define ARCMSR_ARC1214_PCIE_F0_INTERRUPT_ENABLE         0x0020C
 358#define ARCMSR_ARC1214_INBOUND_MESSAGE0                 0x00400
 359#define ARCMSR_ARC1214_INBOUND_MESSAGE1                 0x00404
 360#define ARCMSR_ARC1214_OUTBOUND_MESSAGE0                0x00420
 361#define ARCMSR_ARC1214_OUTBOUND_MESSAGE1                0x00424
 362#define ARCMSR_ARC1214_INBOUND_DOORBELL                 0x00460
 363#define ARCMSR_ARC1214_OUTBOUND_DOORBELL                0x00480
 364#define ARCMSR_ARC1214_OUTBOUND_DOORBELL_ENABLE         0x00484
 365#define ARCMSR_ARC1214_INBOUND_LIST_BASE_LOW            0x01000
 366#define ARCMSR_ARC1214_INBOUND_LIST_BASE_HIGH           0x01004
 367#define ARCMSR_ARC1214_INBOUND_LIST_WRITE_POINTER       0x01018
 368#define ARCMSR_ARC1214_OUTBOUND_LIST_BASE_LOW           0x01060
 369#define ARCMSR_ARC1214_OUTBOUND_LIST_BASE_HIGH          0x01064
 370#define ARCMSR_ARC1214_OUTBOUND_LIST_COPY_POINTER       0x0106C
 371#define ARCMSR_ARC1214_OUTBOUND_LIST_READ_POINTER       0x01070
 372#define ARCMSR_ARC1214_OUTBOUND_INTERRUPT_CAUSE         0x01088
 373#define ARCMSR_ARC1214_OUTBOUND_INTERRUPT_ENABLE        0x0108C
 374#define ARCMSR_ARC1214_MESSAGE_WBUFFER                  0x02000
 375#define ARCMSR_ARC1214_MESSAGE_RBUFFER                  0x02100
 376#define ARCMSR_ARC1214_MESSAGE_RWBUFFER                 0x02200
 377/* Host Interrupt Mask */
 378#define ARCMSR_ARC1214_ALL_INT_ENABLE                   0x00001010
 379#define ARCMSR_ARC1214_ALL_INT_DISABLE                  0x00000000
 380/* Host Interrupt Status */
 381#define ARCMSR_ARC1214_OUTBOUND_DOORBELL_ISR            0x00001000
 382#define ARCMSR_ARC1214_OUTBOUND_POSTQUEUE_ISR           0x00000010
 383/* DoorBell*/
 384#define ARCMSR_ARC1214_DRV2IOP_DATA_IN_READY            0x00000001
 385#define ARCMSR_ARC1214_DRV2IOP_DATA_OUT_READ            0x00000002
 386/*inbound message 0 ready*/
 387#define ARCMSR_ARC1214_IOP2DRV_DATA_WRITE_OK            0x00000001
 388/*outbound DATA WRITE isr door bell clear*/
 389#define ARCMSR_ARC1214_IOP2DRV_DATA_READ_OK             0x00000002
 390/*outbound message 0 ready*/
 391#define ARCMSR_ARC1214_IOP2DRV_MESSAGE_CMD_DONE         0x02000000
 392/*outbound message cmd isr door bell clear*/
 393/*ARCMSR_HBAMU_MESSAGE_FIRMWARE_OK*/
 394#define ARCMSR_ARC1214_MESSAGE_FIRMWARE_OK              0x80000000
 395#define ARCMSR_ARC1214_OUTBOUND_LIST_INTERRUPT_CLEAR    0x00000001
 396/*
 397*******************************************************************************
 398**    ARECA SCSI COMMAND DESCRIPTOR BLOCK size 0x1F8 (504)
 399*******************************************************************************
 400*/
 401struct ARCMSR_CDB
 402{
 403        uint8_t                                                 Bus;
 404        uint8_t                                                 TargetID;
 405        uint8_t                                                 LUN;
 406        uint8_t                                                 Function;
 407        uint8_t                                                 CdbLength;
 408        uint8_t                                                 sgcount;
 409        uint8_t                                                 Flags;
 410#define ARCMSR_CDB_FLAG_SGL_BSIZE          0x01
 411#define ARCMSR_CDB_FLAG_BIOS               0x02
 412#define ARCMSR_CDB_FLAG_WRITE              0x04
 413#define ARCMSR_CDB_FLAG_SIMPLEQ            0x00
 414#define ARCMSR_CDB_FLAG_HEADQ              0x08
 415#define ARCMSR_CDB_FLAG_ORDEREDQ           0x10
 416
 417        uint8_t                                                 msgPages;
 418        uint32_t                                                msgContext;
 419        uint32_t                                                DataLength;
 420        uint8_t                                                 Cdb[16];
 421        uint8_t                                                 DeviceStatus;
 422#define ARCMSR_DEV_CHECK_CONDITION          0x02
 423#define ARCMSR_DEV_SELECT_TIMEOUT           0xF0
 424#define ARCMSR_DEV_ABORTED                  0xF1
 425#define ARCMSR_DEV_INIT_FAIL                0xF2
 426
 427        uint8_t                                                 SenseData[15];
 428        union
 429        {
 430                struct SG32ENTRY                sg32entry[1];
 431                struct SG64ENTRY                sg64entry[1];
 432        } u;
 433};
 434/*
 435*******************************************************************************
 436**     Messaging Unit (MU) of the Intel R 80331 I/O processor(Type A) and Type B processor
 437*******************************************************************************
 438*/
 439struct MessageUnit_A
 440{
 441        uint32_t        resrved0[4];                    /*0000 000F*/
 442        uint32_t        inbound_msgaddr0;               /*0010 0013*/
 443        uint32_t        inbound_msgaddr1;               /*0014 0017*/
 444        uint32_t        outbound_msgaddr0;              /*0018 001B*/
 445        uint32_t        outbound_msgaddr1;              /*001C 001F*/
 446        uint32_t        inbound_doorbell;               /*0020 0023*/
 447        uint32_t        inbound_intstatus;              /*0024 0027*/
 448        uint32_t        inbound_intmask;                /*0028 002B*/
 449        uint32_t        outbound_doorbell;              /*002C 002F*/
 450        uint32_t        outbound_intstatus;             /*0030 0033*/
 451        uint32_t        outbound_intmask;               /*0034 0037*/
 452        uint32_t        reserved1[2];                   /*0038 003F*/
 453        uint32_t        inbound_queueport;              /*0040 0043*/
 454        uint32_t        outbound_queueport;             /*0044 0047*/
 455        uint32_t        reserved2[2];                   /*0048 004F*/
 456        uint32_t        reserved3[492];                 /*0050 07FF 492*/
 457        uint32_t        reserved4[128];                 /*0800 09FF 128*/
 458        uint32_t        message_rwbuffer[256];          /*0a00 0DFF 256*/
 459        uint32_t        message_wbuffer[32];            /*0E00 0E7F  32*/
 460        uint32_t        reserved5[32];                  /*0E80 0EFF  32*/
 461        uint32_t        message_rbuffer[32];            /*0F00 0F7F  32*/
 462        uint32_t        reserved6[32];                  /*0F80 0FFF  32*/
 463};
 464
 465struct MessageUnit_B
 466{
 467        uint32_t        post_qbuffer[ARCMSR_MAX_HBB_POSTQUEUE];
 468        uint32_t        done_qbuffer[ARCMSR_MAX_HBB_POSTQUEUE];
 469        uint32_t        postq_index;
 470        uint32_t        doneq_index;
 471        uint32_t                __iomem *drv2iop_doorbell;
 472        uint32_t                __iomem *drv2iop_doorbell_mask;
 473        uint32_t                __iomem *iop2drv_doorbell;
 474        uint32_t                __iomem *iop2drv_doorbell_mask;
 475        uint32_t                __iomem *message_rwbuffer;
 476        uint32_t                __iomem *message_wbuffer;
 477        uint32_t                __iomem *message_rbuffer;
 478};
 479/*
 480*********************************************************************
 481** LSI
 482*********************************************************************
 483*/
 484struct MessageUnit_C{
 485        uint32_t        message_unit_status;                    /*0000 0003*/
 486        uint32_t        slave_error_attribute;                  /*0004 0007*/
 487        uint32_t        slave_error_address;                    /*0008 000B*/
 488        uint32_t        posted_outbound_doorbell;               /*000C 000F*/
 489        uint32_t        master_error_attribute;                 /*0010 0013*/
 490        uint32_t        master_error_address_low;               /*0014 0017*/
 491        uint32_t        master_error_address_high;              /*0018 001B*/
 492        uint32_t        hcb_size;                               /*001C 001F*/
 493        uint32_t        inbound_doorbell;                       /*0020 0023*/
 494        uint32_t        diagnostic_rw_data;                     /*0024 0027*/
 495        uint32_t        diagnostic_rw_address_low;              /*0028 002B*/
 496        uint32_t        diagnostic_rw_address_high;             /*002C 002F*/
 497        uint32_t        host_int_status;                                /*0030 0033*/
 498        uint32_t        host_int_mask;                          /*0034 0037*/
 499        uint32_t        dcr_data;                               /*0038 003B*/
 500        uint32_t        dcr_address;                            /*003C 003F*/
 501        uint32_t        inbound_queueport;                      /*0040 0043*/
 502        uint32_t        outbound_queueport;                     /*0044 0047*/
 503        uint32_t        hcb_pci_address_low;                    /*0048 004B*/
 504        uint32_t        hcb_pci_address_high;                   /*004C 004F*/
 505        uint32_t        iop_int_status;                         /*0050 0053*/
 506        uint32_t        iop_int_mask;                           /*0054 0057*/
 507        uint32_t        iop_inbound_queue_port;                 /*0058 005B*/
 508        uint32_t        iop_outbound_queue_port;                /*005C 005F*/
 509        uint32_t        inbound_free_list_index;                        /*0060 0063*/
 510        uint32_t        inbound_post_list_index;                        /*0064 0067*/
 511        uint32_t        outbound_free_list_index;                       /*0068 006B*/
 512        uint32_t        outbound_post_list_index;                       /*006C 006F*/
 513        uint32_t        inbound_doorbell_clear;                 /*0070 0073*/
 514        uint32_t        i2o_message_unit_control;                       /*0074 0077*/
 515        uint32_t        last_used_message_source_address_low;   /*0078 007B*/
 516        uint32_t        last_used_message_source_address_high;  /*007C 007F*/
 517        uint32_t        pull_mode_data_byte_count[4];           /*0080 008F*/
 518        uint32_t        message_dest_address_index;             /*0090 0093*/
 519        uint32_t        done_queue_not_empty_int_counter_timer; /*0094 0097*/
 520        uint32_t        utility_A_int_counter_timer;            /*0098 009B*/
 521        uint32_t        outbound_doorbell;                      /*009C 009F*/
 522        uint32_t        outbound_doorbell_clear;                        /*00A0 00A3*/
 523        uint32_t        message_source_address_index;           /*00A4 00A7*/
 524        uint32_t        message_done_queue_index;               /*00A8 00AB*/
 525        uint32_t        reserved0;                              /*00AC 00AF*/
 526        uint32_t        inbound_msgaddr0;                       /*00B0 00B3*/
 527        uint32_t        inbound_msgaddr1;                       /*00B4 00B7*/
 528        uint32_t        outbound_msgaddr0;                      /*00B8 00BB*/
 529        uint32_t        outbound_msgaddr1;                      /*00BC 00BF*/
 530        uint32_t        inbound_queueport_low;                  /*00C0 00C3*/
 531        uint32_t        inbound_queueport_high;                 /*00C4 00C7*/
 532        uint32_t        outbound_queueport_low;                 /*00C8 00CB*/
 533        uint32_t        outbound_queueport_high;                /*00CC 00CF*/
 534        uint32_t        iop_inbound_queue_port_low;             /*00D0 00D3*/
 535        uint32_t        iop_inbound_queue_port_high;            /*00D4 00D7*/
 536        uint32_t        iop_outbound_queue_port_low;            /*00D8 00DB*/
 537        uint32_t        iop_outbound_queue_port_high;           /*00DC 00DF*/
 538        uint32_t        message_dest_queue_port_low;            /*00E0 00E3*/
 539        uint32_t        message_dest_queue_port_high;           /*00E4 00E7*/
 540        uint32_t        last_used_message_dest_address_low;     /*00E8 00EB*/
 541        uint32_t        last_used_message_dest_address_high;    /*00EC 00EF*/
 542        uint32_t        message_done_queue_base_address_low;    /*00F0 00F3*/
 543        uint32_t        message_done_queue_base_address_high;   /*00F4 00F7*/
 544        uint32_t        host_diagnostic;                                /*00F8 00FB*/
 545        uint32_t        write_sequence;                         /*00FC 00FF*/
 546        uint32_t        reserved1[34];                          /*0100 0187*/
 547        uint32_t        reserved2[1950];                                /*0188 1FFF*/
 548        uint32_t        message_wbuffer[32];                    /*2000 207F*/
 549        uint32_t        reserved3[32];                          /*2080 20FF*/
 550        uint32_t        message_rbuffer[32];                    /*2100 217F*/
 551        uint32_t        reserved4[32];                          /*2180 21FF*/
 552        uint32_t        msgcode_rwbuffer[256];                  /*2200 23FF*/
 553};
 554/*
 555*********************************************************************
 556**     Messaging Unit (MU) of Type D processor
 557*********************************************************************
 558*/
 559struct InBound_SRB {
 560        uint32_t addressLow; /* pointer to SRB block */
 561        uint32_t addressHigh;
 562        uint32_t length; /* in DWORDs */
 563        uint32_t reserved0;
 564};
 565
 566struct OutBound_SRB {
 567        uint32_t addressLow; /* pointer to SRB block */
 568        uint32_t addressHigh;
 569};
 570
 571struct MessageUnit_D {
 572        struct InBound_SRB      post_qbuffer[ARCMSR_MAX_ARC1214_POSTQUEUE];
 573        volatile struct OutBound_SRB
 574                                done_qbuffer[ARCMSR_MAX_ARC1214_DONEQUEUE];
 575        u16 postq_index;
 576        volatile u16 doneq_index;
 577        u32 __iomem *chip_id;                   /* 0x00004 */
 578        u32 __iomem *cpu_mem_config;            /* 0x00008 */
 579        u32 __iomem *i2o_host_interrupt_mask;   /* 0x00034 */
 580        u32 __iomem *sample_at_reset;           /* 0x00100 */
 581        u32 __iomem *reset_request;             /* 0x00108 */
 582        u32 __iomem *host_int_status;           /* 0x00200 */
 583        u32 __iomem *pcief0_int_enable;         /* 0x0020C */
 584        u32 __iomem *inbound_msgaddr0;          /* 0x00400 */
 585        u32 __iomem *inbound_msgaddr1;          /* 0x00404 */
 586        u32 __iomem *outbound_msgaddr0;         /* 0x00420 */
 587        u32 __iomem *outbound_msgaddr1;         /* 0x00424 */
 588        u32 __iomem *inbound_doorbell;          /* 0x00460 */
 589        u32 __iomem *outbound_doorbell;         /* 0x00480 */
 590        u32 __iomem *outbound_doorbell_enable;  /* 0x00484 */
 591        u32 __iomem *inboundlist_base_low;      /* 0x01000 */
 592        u32 __iomem *inboundlist_base_high;     /* 0x01004 */
 593        u32 __iomem *inboundlist_write_pointer; /* 0x01018 */
 594        u32 __iomem *outboundlist_base_low;     /* 0x01060 */
 595        u32 __iomem *outboundlist_base_high;    /* 0x01064 */
 596        u32 __iomem *outboundlist_copy_pointer; /* 0x0106C */
 597        u32 __iomem *outboundlist_read_pointer; /* 0x01070 0x01072 */
 598        u32 __iomem *outboundlist_interrupt_cause;      /* 0x1088 */
 599        u32 __iomem *outboundlist_interrupt_enable;     /* 0x108C */
 600        u32 __iomem *message_wbuffer;           /* 0x2000 */
 601        u32 __iomem *message_rbuffer;           /* 0x2100 */
 602        u32 __iomem *msgcode_rwbuffer;          /* 0x2200 */
 603};
 604/*
 605*******************************************************************************
 606**                 Adapter Control Block
 607*******************************************************************************
 608*/
 609struct AdapterControlBlock
 610{
 611        uint32_t  adapter_type;                /* adapter A,B..... */
 612        #define ACB_ADAPTER_TYPE_A            0x00000001        /* hba I IOP */
 613        #define ACB_ADAPTER_TYPE_B            0x00000002        /* hbb M IOP */
 614        #define ACB_ADAPTER_TYPE_C            0x00000004        /* hbc P IOP */
 615        #define ACB_ADAPTER_TYPE_D            0x00000008        /* hbd A IOP */
 616        u32                             roundup_ccbsize;
 617        struct pci_dev *                pdev;
 618        struct Scsi_Host *              host;
 619        unsigned long                   vir2phy_offset;
 620        struct msix_entry       entries[ARCMST_NUM_MSIX_VECTORS];
 621        /* Offset is used in making arc cdb physical to virtual calculations */
 622        uint32_t                        outbound_int_enable;
 623        uint32_t                        cdb_phyaddr_hi32;
 624        uint32_t                        reg_mu_acc_handle0;
 625        spinlock_t                                              eh_lock;
 626        spinlock_t                                              ccblist_lock;
 627        spinlock_t                      postq_lock;
 628        spinlock_t                      doneq_lock;
 629        spinlock_t                      rqbuffer_lock;
 630        spinlock_t                      wqbuffer_lock;
 631        union {
 632                struct MessageUnit_A __iomem *pmuA;
 633                struct MessageUnit_B    *pmuB;
 634                struct MessageUnit_C __iomem *pmuC;
 635                struct MessageUnit_D    *pmuD;
 636        };
 637        /* message unit ATU inbound base address0 */
 638        void __iomem *mem_base0;
 639        void __iomem *mem_base1;
 640        uint32_t                        acb_flags;
 641        u16                     dev_id;
 642        uint8_t                                 adapter_index;
 643        #define ACB_F_SCSISTOPADAPTER           0x0001
 644        #define ACB_F_MSG_STOP_BGRB             0x0002
 645        /* stop RAID background rebuild */
 646        #define ACB_F_MSG_START_BGRB            0x0004
 647        /* stop RAID background rebuild */
 648        #define ACB_F_IOPDATA_OVERFLOW          0x0008
 649        /* iop message data rqbuffer overflow */
 650        #define ACB_F_MESSAGE_WQBUFFER_CLEARED  0x0010
 651        /* message clear wqbuffer */
 652        #define ACB_F_MESSAGE_RQBUFFER_CLEARED  0x0020
 653        /* message clear rqbuffer */
 654        #define ACB_F_MESSAGE_WQBUFFER_READED   0x0040
 655        #define ACB_F_BUS_RESET                 0x0080
 656        #define ACB_F_BUS_HANG_ON               0x0800/* need hardware reset bus */
 657
 658        #define ACB_F_IOP_INITED                0x0100
 659        /* iop init */
 660        #define ACB_F_ABORT                             0x0200
 661        #define ACB_F_FIRMWARE_TRAP                     0x0400
 662        #define ACB_F_MSI_ENABLED               0x1000
 663        #define ACB_F_MSIX_ENABLED              0x2000
 664        struct CommandControlBlock *                    pccb_pool[ARCMSR_MAX_FREECCB_NUM];
 665        /* used for memory free */
 666        struct list_head                ccb_free_list;
 667        /* head of free ccb list */
 668
 669        atomic_t                        ccboutstandingcount;
 670        /*The present outstanding command number that in the IOP that
 671                                        waiting for being handled by FW*/
 672
 673        void *                          dma_coherent;
 674        /* dma_coherent used for memory free */
 675        dma_addr_t                      dma_coherent_handle;
 676        /* dma_coherent_handle used for memory free */
 677        dma_addr_t                              dma_coherent_handle2;
 678        void                            *dma_coherent2;
 679        unsigned int                            uncache_size;
 680        uint8_t                         rqbuffer[ARCMSR_MAX_QBUFFER];
 681        /* data collection buffer for read from 80331 */
 682        int32_t                         rqbuf_getIndex;
 683        /* first of read buffer  */
 684        int32_t                         rqbuf_putIndex;
 685        /* last of read buffer   */
 686        uint8_t                         wqbuffer[ARCMSR_MAX_QBUFFER];
 687        /* data collection buffer for write to 80331  */
 688        int32_t                         wqbuf_getIndex;
 689        /* first of write buffer */
 690        int32_t                         wqbuf_putIndex;
 691        /* last of write buffer  */
 692        uint8_t                         devstate[ARCMSR_MAX_TARGETID][ARCMSR_MAX_TARGETLUN];
 693        /* id0 ..... id15, lun0...lun7 */
 694#define ARECA_RAID_GONE               0x55
 695#define ARECA_RAID_GOOD               0xaa
 696        uint32_t                        num_resets;
 697        uint32_t                        num_aborts;
 698        uint32_t                        signature;
 699        uint32_t                        firm_request_len;
 700        uint32_t                        firm_numbers_queue;
 701        uint32_t                        firm_sdram_size;
 702        uint32_t                        firm_hd_channels;
 703        uint32_t                                firm_cfg_version;       
 704        char                    firm_model[12];
 705        char                    firm_version[20];
 706        char                    device_map[20];                 /*21,84-99*/
 707        struct work_struct              arcmsr_do_message_isr_bh;
 708        struct timer_list               eternal_timer;
 709        unsigned short          fw_flag;
 710                                #define FW_NORMAL       0x0000
 711                                #define FW_BOG          0x0001
 712                                #define FW_DEADLOCK     0x0010
 713        atomic_t                        rq_map_token;
 714        atomic_t                        ante_token_value;
 715        uint32_t        maxOutstanding;
 716        int             msix_vector_count;
 717};/* HW_DEVICE_EXTENSION */
 718/*
 719*******************************************************************************
 720**                   Command Control Block
 721**             this CCB length must be 32 bytes boundary
 722*******************************************************************************
 723*/
 724struct CommandControlBlock{
 725        /*x32:sizeof struct_CCB=(32+60)byte, x64:sizeof struct_CCB=(64+60)byte*/
 726        struct list_head                list;                           /*x32: 8byte, x64: 16byte*/
 727        struct scsi_cmnd                *pcmd;                          /*8 bytes pointer of linux scsi command */
 728        struct AdapterControlBlock      *acb;                           /*x32: 4byte, x64: 8byte*/
 729        uint32_t                        cdb_phyaddr;                    /*x32: 4byte, x64: 4byte*/
 730        uint32_t                        arc_cdb_size;                   /*x32:4byte,x64:4byte*/
 731        uint16_t                        ccb_flags;                      /*x32: 2byte, x64: 2byte*/
 732        #define                 CCB_FLAG_READ                   0x0000
 733        #define                 CCB_FLAG_WRITE          0x0001
 734        #define                 CCB_FLAG_ERROR          0x0002
 735        #define                 CCB_FLAG_FLUSHCACHE             0x0004
 736        #define                 CCB_FLAG_MASTER_ABORTED 0x0008  
 737        uint16_t                                startdone;                      /*x32:2byte,x32:2byte*/
 738        #define                 ARCMSR_CCB_DONE                         0x0000
 739        #define                 ARCMSR_CCB_START                0x55AA
 740        #define                 ARCMSR_CCB_ABORTED              0xAA55
 741        #define                 ARCMSR_CCB_ILLEGAL              0xFFFF
 742        #if BITS_PER_LONG == 64
 743        /*  ======================512+64 bytes========================  */
 744                uint32_t                                reserved[5];            /*24 byte*/
 745        #else
 746        /*  ======================512+32 bytes========================  */
 747                uint32_t                                reserved;               /*8  byte*/
 748        #endif
 749        /*  =======================================================   */
 750        struct ARCMSR_CDB               arcmsr_cdb;
 751};
 752/*
 753*******************************************************************************
 754**    ARECA SCSI sense data
 755*******************************************************************************
 756*/
 757struct SENSE_DATA
 758{
 759        uint8_t                         ErrorCode:7;
 760#define SCSI_SENSE_CURRENT_ERRORS       0x70
 761#define SCSI_SENSE_DEFERRED_ERRORS      0x71
 762        uint8_t                         Valid:1;
 763        uint8_t                         SegmentNumber;
 764        uint8_t                         SenseKey:4;
 765        uint8_t                         Reserved:1;
 766        uint8_t                         IncorrectLength:1;
 767        uint8_t                         EndOfMedia:1;
 768        uint8_t                         FileMark:1;
 769        uint8_t                         Information[4];
 770        uint8_t                         AdditionalSenseLength;
 771        uint8_t                         CommandSpecificInformation[4];
 772        uint8_t                         AdditionalSenseCode;
 773        uint8_t                         AdditionalSenseCodeQualifier;
 774        uint8_t                         FieldReplaceableUnitCode;
 775        uint8_t                         SenseKeySpecific[3];
 776};
 777/*
 778*******************************************************************************
 779**  Outbound Interrupt Status Register - OISR
 780*******************************************************************************
 781*/
 782#define     ARCMSR_MU_OUTBOUND_INTERRUPT_STATUS_REG                 0x30
 783#define     ARCMSR_MU_OUTBOUND_PCI_INT                              0x10
 784#define     ARCMSR_MU_OUTBOUND_POSTQUEUE_INT                        0x08
 785#define     ARCMSR_MU_OUTBOUND_DOORBELL_INT                         0x04
 786#define     ARCMSR_MU_OUTBOUND_MESSAGE1_INT                         0x02
 787#define     ARCMSR_MU_OUTBOUND_MESSAGE0_INT                         0x01
 788#define     ARCMSR_MU_OUTBOUND_HANDLE_INT                 \
 789                    (ARCMSR_MU_OUTBOUND_MESSAGE0_INT      \
 790                     |ARCMSR_MU_OUTBOUND_MESSAGE1_INT     \
 791                     |ARCMSR_MU_OUTBOUND_DOORBELL_INT     \
 792                     |ARCMSR_MU_OUTBOUND_POSTQUEUE_INT    \
 793                     |ARCMSR_MU_OUTBOUND_PCI_INT)
 794/*
 795*******************************************************************************
 796**  Outbound Interrupt Mask Register - OIMR
 797*******************************************************************************
 798*/
 799#define     ARCMSR_MU_OUTBOUND_INTERRUPT_MASK_REG                   0x34
 800#define     ARCMSR_MU_OUTBOUND_PCI_INTMASKENABLE                    0x10
 801#define     ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE              0x08
 802#define     ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE               0x04
 803#define     ARCMSR_MU_OUTBOUND_MESSAGE1_INTMASKENABLE               0x02
 804#define     ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE               0x01
 805#define     ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE                    0x1F
 806
 807extern void arcmsr_write_ioctldata2iop(struct AdapterControlBlock *);
 808extern uint32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *,
 809        struct QBUFFER __iomem *);
 810extern void arcmsr_clear_iop2drv_rqueue_buffer(struct AdapterControlBlock *);
 811extern struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *);
 812extern struct device_attribute *arcmsr_host_attrs[];
 813extern int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *);
 814void arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb);
 815