linux/drivers/scsi/BusLogic.h
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   1/*
   2
   3  Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters
   4
   5  Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>
   6
   7  This program is free software; you may redistribute and/or modify it under
   8  the terms of the GNU General Public License Version 2 as published by the
   9  Free Software Foundation.
  10
  11  This program is distributed in the hope that it will be useful, but
  12  WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
  13  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  for complete details.
  15
  16  The author respectfully requests that any modifications to this software be
  17  sent directly to him for evaluation and testing.
  18
  19  Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose
  20  advice has been invaluable, to David Gentzel, for writing the original Linux
  21  BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site.
  22
  23  Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB
  24  Manager available as freely redistributable source code.
  25
  26*/
  27
  28#ifndef _BUSLOGIC_H
  29#define _BUSLOGIC_H
  30
  31
  32#ifndef PACKED
  33#define PACKED __attribute__((packed))
  34#endif
  35
  36/*
  37  Define the maximum number of BusLogic Host Adapters supported by this driver.
  38*/
  39
  40#define BLOGIC_MAX_ADAPTERS             16
  41
  42
  43/*
  44  Define the maximum number of Target Devices supported by this driver.
  45*/
  46
  47#define BLOGIC_MAXDEV                   16
  48
  49
  50/*
  51  Define the maximum number of Scatter/Gather Segments used by this driver.
  52  For optimal performance, it is important that this limit be at least as
  53  large as the largest single request generated by the I/O Subsystem.
  54*/
  55
  56#define BLOGIC_SG_LIMIT         128
  57
  58
  59/*
  60  Define the maximum, maximum automatic, minimum automatic, and default Queue
  61  Depth to allow for Target Devices depending on whether or not they support
  62  Tagged Queuing and whether or not ISA Bounce Buffers are required.
  63*/
  64
  65#define BLOGIC_MAX_TAG_DEPTH            64
  66#define BLOGIC_MAX_AUTO_TAG_DEPTH       28
  67#define BLOGIC_MIN_AUTO_TAG_DEPTH       7
  68#define BLOGIC_TAG_DEPTH_BB             3
  69#define BLOGIC_UNTAG_DEPTH              3
  70#define BLOGIC_UNTAG_DEPTH_BB           2
  71
  72
  73/*
  74  Define the default amount of time in seconds to wait between a Host Adapter
  75  Hard Reset which initiates a SCSI Bus Reset and issuing any SCSI commands.
  76  Some SCSI devices get confused if they receive SCSI commands too soon after
  77  a SCSI Bus Reset.
  78*/
  79
  80#define BLOGIC_BUS_SETTLE_TIME          2
  81
  82
  83/*
  84  Define the maximum number of Mailboxes that should be used for MultiMaster
  85  Host Adapters.  This number is chosen to be larger than the maximum Host
  86  Adapter Queue Depth and small enough so that the Host Adapter structure
  87  does not cross an allocation block size boundary.
  88*/
  89
  90#define BLOGIC_MAX_MAILBOX              211
  91
  92
  93/*
  94  Define the number of CCBs that should be allocated as a group to optimize
  95  Kernel memory allocation.
  96*/
  97
  98#define BLOGIC_CCB_GRP_ALLOCSIZE        7
  99
 100
 101/*
 102  Define the Host Adapter Line and Message Buffer Sizes.
 103*/
 104
 105#define BLOGIC_LINEBUF_SIZE             100
 106#define BLOGIC_MSGBUF_SIZE              9700
 107
 108
 109/*
 110  Define the Driver Message Levels.
 111*/
 112
 113enum blogic_msglevel {
 114        BLOGIC_ANNOUNCE_LEVEL = 0,
 115        BLOGIC_INFO_LEVEL = 1,
 116        BLOGIC_NOTICE_LEVEL = 2,
 117        BLOGIC_WARN_LEVEL = 3,
 118        BLOGIC_ERR_LEVEL = 4
 119};
 120
 121static char *blogic_msglevelmap[] = { KERN_NOTICE, KERN_NOTICE, KERN_NOTICE, KERN_WARNING, KERN_ERR };
 122
 123
 124/*
 125  Define Driver Message macros.
 126*/
 127
 128#define blogic_announce(format, args...) \
 129        blogic_msg(BLOGIC_ANNOUNCE_LEVEL, format, ##args)
 130
 131#define blogic_info(format, args...) \
 132        blogic_msg(BLOGIC_INFO_LEVEL, format, ##args)
 133
 134#define blogic_notice(format, args...) \
 135        blogic_msg(BLOGIC_NOTICE_LEVEL, format, ##args)
 136
 137#define blogic_warn(format, args...) \
 138        blogic_msg(BLOGIC_WARN_LEVEL, format, ##args)
 139
 140#define blogic_err(format, args...) \
 141        blogic_msg(BLOGIC_ERR_LEVEL, format, ##args)
 142
 143
 144/*
 145  Define the types of BusLogic Host Adapters that are supported and the number
 146  of I/O Addresses required by each type.
 147*/
 148
 149enum blogic_adapter_type {
 150        BLOGIC_MULTIMASTER = 1,
 151        BLOGIC_FLASHPOINT = 2
 152} PACKED;
 153
 154#define BLOGIC_MULTIMASTER_ADDR_COUNT   4
 155#define BLOGIC_FLASHPOINT_ADDR_COUNT    256
 156
 157static int blogic_adapter_addr_count[3] = { 0, BLOGIC_MULTIMASTER_ADDR_COUNT, BLOGIC_FLASHPOINT_ADDR_COUNT };
 158
 159
 160/*
 161  Define macros for testing the Host Adapter Type.
 162*/
 163
 164#ifdef CONFIG_SCSI_FLASHPOINT
 165
 166#define blogic_multimaster_type(adapter) \
 167        (adapter->adapter_type == BLOGIC_MULTIMASTER)
 168
 169#define blogic_flashpoint_type(adapter) \
 170        (adapter->adapter_type == BLOGIC_FLASHPOINT)
 171
 172#else
 173
 174#define blogic_multimaster_type(adapter)        (true)
 175#define blogic_flashpoint_type(adapter)         (false)
 176
 177#endif
 178
 179
 180/*
 181  Define the possible Host Adapter Bus Types.
 182*/
 183
 184enum blogic_adapter_bus_type {
 185        BLOGIC_UNKNOWN_BUS = 0,
 186        BLOGIC_ISA_BUS = 1,
 187        BLOGIC_EISA_BUS = 2,
 188        BLOGIC_PCI_BUS = 3,
 189        BLOGIC_VESA_BUS = 4,
 190        BLOGIC_MCA_BUS = 5
 191} PACKED;
 192
 193static char *blogic_adapter_busnames[] = { "Unknown", "ISA", "EISA", "PCI", "VESA", "MCA" };
 194
 195static enum blogic_adapter_bus_type blogic_adater_bus_types[] = {
 196        BLOGIC_VESA_BUS,        /* BT-4xx */
 197        BLOGIC_ISA_BUS,         /* BT-5xx */
 198        BLOGIC_MCA_BUS,         /* BT-6xx */
 199        BLOGIC_EISA_BUS,        /* BT-7xx */
 200        BLOGIC_UNKNOWN_BUS,     /* BT-8xx */
 201        BLOGIC_PCI_BUS          /* BT-9xx */
 202};
 203
 204/*
 205  Define the possible Host Adapter BIOS Disk Geometry Translations.
 206*/
 207
 208enum blogic_bios_diskgeometry {
 209        BLOGIC_BIOS_NODISK = 0,
 210        BLOGIC_BIOS_DISK64x32 = 1,
 211        BLOGIC_BIOS_DISK128x32 = 2,
 212        BLOGIC_BIOS_DISK255x63 = 3
 213} PACKED;
 214
 215
 216/*
 217  Define a 10^18 Statistics Byte Counter data type.
 218*/
 219
 220struct blogic_byte_count {
 221        unsigned int units;
 222        unsigned int billions;
 223};
 224
 225
 226/*
 227  Define the structure for I/O Address and Bus Probing Information.
 228*/
 229
 230struct blogic_probeinfo {
 231        enum blogic_adapter_type adapter_type;
 232        enum blogic_adapter_bus_type adapter_bus_type;
 233        unsigned long io_addr;
 234        unsigned long pci_addr;
 235        struct pci_dev *pci_device;
 236        unsigned char bus;
 237        unsigned char dev;
 238        unsigned char irq_ch;
 239};
 240
 241/*
 242  Define the Probe Options.
 243*/
 244
 245struct blogic_probe_options {
 246        bool noprobe:1;                 /* Bit 0 */
 247        bool noprobe_isa:1;             /* Bit 1 */
 248        bool noprobe_pci:1;             /* Bit 2 */
 249        bool nosort_pci:1;              /* Bit 3 */
 250        bool multimaster_first:1;       /* Bit 4 */
 251        bool flashpoint_first:1;        /* Bit 5 */
 252        bool limited_isa:1;             /* Bit 6 */
 253        bool probe330:1;                /* Bit 7 */
 254        bool probe334:1;                /* Bit 8 */
 255        bool probe230:1;                /* Bit 9 */
 256        bool probe234:1;                /* Bit 10 */
 257        bool probe130:1;                /* Bit 11 */
 258        bool probe134:1;                /* Bit 12 */
 259};
 260
 261/*
 262  Define the Global Options.
 263*/
 264
 265struct blogic_global_options {
 266        bool trace_probe:1;     /* Bit 0 */
 267        bool trace_hw_reset:1;  /* Bit 1 */
 268        bool trace_config:1;    /* Bit 2 */
 269        bool trace_err:1;       /* Bit 3 */
 270};
 271
 272/*
 273  Define the BusLogic SCSI Host Adapter I/O Register Offsets.
 274*/
 275
 276#define BLOGIC_CNTRL_REG        0       /* WO register */
 277#define BLOGIC_STATUS_REG       0       /* RO register */
 278#define BLOGIC_CMD_PARM_REG     1       /* WO register */
 279#define BLOGIC_DATAIN_REG       1       /* RO register */
 280#define BLOGIC_INT_REG          2       /* RO register */
 281#define BLOGIC_GEOMETRY_REG     3       /* RO register */
 282
 283/*
 284  Define the structure of the write-only Control Register.
 285*/
 286
 287union blogic_cntrl_reg {
 288        unsigned char all;
 289        struct {
 290                unsigned char:4;        /* Bits 0-3 */
 291                bool bus_reset:1;       /* Bit 4 */
 292                bool int_reset:1;       /* Bit 5 */
 293                bool soft_reset:1;      /* Bit 6 */
 294                bool hard_reset:1;      /* Bit 7 */
 295        } cr;
 296};
 297
 298/*
 299  Define the structure of the read-only Status Register.
 300*/
 301
 302union blogic_stat_reg {
 303        unsigned char all;
 304        struct {
 305                bool cmd_invalid:1;     /* Bit 0 */
 306                bool rsvd:1;            /* Bit 1 */
 307                bool datain_ready:1;    /* Bit 2 */
 308                bool cmd_param_busy:1;  /* Bit 3 */
 309                bool adapter_ready:1;   /* Bit 4 */
 310                bool init_reqd:1;       /* Bit 5 */
 311                bool diag_failed:1;     /* Bit 6 */
 312                bool diag_active:1;     /* Bit 7 */
 313        } sr;
 314};
 315
 316/*
 317  Define the structure of the read-only Interrupt Register.
 318*/
 319
 320union blogic_int_reg {
 321        unsigned char all;
 322        struct {
 323                bool mailin_loaded:1;   /* Bit 0 */
 324                bool mailout_avail:1;   /* Bit 1 */
 325                bool cmd_complete:1;    /* Bit 2 */
 326                bool ext_busreset:1;    /* Bit 3 */
 327                unsigned char rsvd:3;   /* Bits 4-6 */
 328                bool int_valid:1;       /* Bit 7 */
 329        } ir;
 330};
 331
 332/*
 333  Define the structure of the read-only Geometry Register.
 334*/
 335
 336union blogic_geo_reg {
 337        unsigned char all;
 338        struct {
 339                enum blogic_bios_diskgeometry d0_geo:2; /* Bits 0-1 */
 340                enum blogic_bios_diskgeometry d1_geo:2; /* Bits 2-3 */
 341                unsigned char:3;        /* Bits 4-6 */
 342                bool ext_trans_enable:1;        /* Bit 7 */
 343        } gr;
 344};
 345
 346/*
 347  Define the BusLogic SCSI Host Adapter Command Register Operation Codes.
 348*/
 349
 350enum blogic_opcode {
 351        BLOGIC_TEST_CMP_COMPLETE = 0x00,
 352        BLOGIC_INIT_MBOX = 0x01,
 353        BLOGIC_EXEC_MBOX_CMD = 0x02,
 354        BLOGIC_EXEC_BIOS_CMD = 0x03,
 355        BLOGIC_GET_BOARD_ID = 0x04,
 356        BLOGIC_ENABLE_OUTBOX_AVAIL_INT = 0x05,
 357        BLOGIC_SET_SELECT_TIMEOUT = 0x06,
 358        BLOGIC_SET_PREEMPT_TIME = 0x07,
 359        BLOGIC_SET_TIMEOFF_BUS = 0x08,
 360        BLOGIC_SET_TXRATE = 0x09,
 361        BLOGIC_INQ_DEV0TO7 = 0x0A,
 362        BLOGIC_INQ_CONFIG = 0x0B,
 363        BLOGIC_TGT_MODE = 0x0C,
 364        BLOGIC_INQ_SETUPINFO = 0x0D,
 365        BLOGIC_WRITE_LOCALRAM = 0x1A,
 366        BLOGIC_READ_LOCALRAM = 0x1B,
 367        BLOGIC_WRITE_BUSMASTER_FIFO = 0x1C,
 368        BLOGIC_READ_BUSMASTER_FIFO = 0x1D,
 369        BLOGIC_ECHO_CMDDATA = 0x1F,
 370        BLOGIC_ADAPTER_DIAG = 0x20,
 371        BLOGIC_SET_OPTIONS = 0x21,
 372        BLOGIC_INQ_DEV8TO15 = 0x23,
 373        BLOGIC_INQ_DEV = 0x24,
 374        BLOGIC_DISABLE_INT = 0x25,
 375        BLOGIC_INIT_EXT_MBOX = 0x81,
 376        BLOGIC_EXEC_SCS_CMD = 0x83,
 377        BLOGIC_INQ_FWVER_D3 = 0x84,
 378        BLOGIC_INQ_FWVER_LETTER = 0x85,
 379        BLOGIC_INQ_PCI_INFO = 0x86,
 380        BLOGIC_INQ_MODELNO = 0x8B,
 381        BLOGIC_INQ_SYNC_PERIOD = 0x8C,
 382        BLOGIC_INQ_EXTSETUP = 0x8D,
 383        BLOGIC_STRICT_RR = 0x8F,
 384        BLOGIC_STORE_LOCALRAM = 0x90,
 385        BLOGIC_FETCH_LOCALRAM = 0x91,
 386        BLOGIC_STORE_TO_EEPROM = 0x92,
 387        BLOGIC_LOAD_AUTOSCSICODE = 0x94,
 388        BLOGIC_MOD_IOADDR = 0x95,
 389        BLOGIC_SETCCB_FMT = 0x96,
 390        BLOGIC_WRITE_INQBUF = 0x9A,
 391        BLOGIC_READ_INQBUF = 0x9B,
 392        BLOGIC_FLASH_LOAD = 0xA7,
 393        BLOGIC_READ_SCAMDATA = 0xA8,
 394        BLOGIC_WRITE_SCAMDATA = 0xA9
 395};
 396
 397/*
 398  Define the Inquire Board ID reply structure.
 399*/
 400
 401struct blogic_board_id {
 402        unsigned char type;             /* Byte 0 */
 403        unsigned char custom_features;  /* Byte 1 */
 404        unsigned char fw_ver_digit1;    /* Byte 2 */
 405        unsigned char fw_ver_digit2;    /* Byte 3 */
 406};
 407
 408/*
 409  Define the Inquire Configuration reply structure.
 410*/
 411
 412struct blogic_config {
 413        unsigned char:5;        /* Byte 0 Bits 0-4 */
 414        bool dma_ch5:1;         /* Byte 0 Bit 5 */
 415        bool dma_ch6:1;         /* Byte 0 Bit 6 */
 416        bool dma_ch7:1;         /* Byte 0 Bit 7 */
 417        bool irq_ch9:1;         /* Byte 1 Bit 0 */
 418        bool irq_ch10:1;        /* Byte 1 Bit 1 */
 419        bool irq_ch11:1;        /* Byte 1 Bit 2 */
 420        bool irq_ch12:1;        /* Byte 1 Bit 3 */
 421        unsigned char:1;        /* Byte 1 Bit 4 */
 422        bool irq_ch14:1;        /* Byte 1 Bit 5 */
 423        bool irq_ch15:1;        /* Byte 1 Bit 6 */
 424        unsigned char:1;        /* Byte 1 Bit 7 */
 425        unsigned char id:4;     /* Byte 2 Bits 0-3 */
 426        unsigned char:4;        /* Byte 2 Bits 4-7 */
 427};
 428
 429/*
 430  Define the Inquire Setup Information reply structure.
 431*/
 432
 433struct blogic_syncval {
 434        unsigned char offset:4;         /* Bits 0-3 */
 435        unsigned char tx_period:3;      /* Bits 4-6 */
 436        bool sync:1;                    /* Bit 7 */
 437};
 438
 439struct blogic_setup_info {
 440        bool sync:1;                            /* Byte 0 Bit 0 */
 441        bool parity:1;                          /* Byte 0 Bit 1 */
 442        unsigned char:6;                        /* Byte 0 Bits 2-7 */
 443        unsigned char tx_rate;                  /* Byte 1 */
 444        unsigned char preempt_time;             /* Byte 2 */
 445        unsigned char timeoff_bus;              /* Byte 3 */
 446        unsigned char mbox_count;               /* Byte 4 */
 447        unsigned char mbox_addr[3];             /* Bytes 5-7 */
 448        struct blogic_syncval sync0to7[8];      /* Bytes 8-15 */
 449        unsigned char disconnect_ok0to7;        /* Byte 16 */
 450        unsigned char sig;                      /* Byte 17 */
 451        unsigned char char_d;                   /* Byte 18 */
 452        unsigned char bus_type;                 /* Byte 19 */
 453        unsigned char wide_tx_ok0to7;           /* Byte 20 */
 454        unsigned char wide_tx_active0to7;       /* Byte 21 */
 455        struct blogic_syncval sync8to15[8];     /* Bytes 22-29 */
 456        unsigned char disconnect_ok8to15;       /* Byte 30 */
 457        unsigned char:8;                        /* Byte 31 */
 458        unsigned char wide_tx_ok8to15;          /* Byte 32 */
 459        unsigned char wide_tx_active8to15;      /* Byte 33 */
 460};
 461
 462/*
 463  Define the Initialize Extended Mailbox request structure.
 464*/
 465
 466struct blogic_extmbox_req {
 467        unsigned char mbox_count;       /* Byte 0 */
 468        u32 base_mbox_addr;             /* Bytes 1-4 */
 469} PACKED;
 470
 471
 472/*
 473  Define the Inquire PCI Host Adapter Information reply type.  The ISA
 474  Compatible I/O Port values are defined here and are also used with
 475  the Modify I/O Address command.
 476*/
 477
 478enum blogic_isa_ioport {
 479        BLOGIC_IO_330 = 0,
 480        BLOGIC_IO_334 = 1,
 481        BLOGIC_IO_230 = 2,
 482        BLOGIC_IO_234 = 3,
 483        BLOGIC_IO_130 = 4,
 484        BLOGIC_IO_134 = 5,
 485        BLOGIC_IO_DISABLE = 6,
 486        BLOGIC_IO_DISABLE2 = 7
 487} PACKED;
 488
 489struct blogic_adapter_info {
 490        enum blogic_isa_ioport isa_port;        /* Byte 0 */
 491        unsigned char irq_ch;           /* Byte 1 */
 492        bool low_term:1;                /* Byte 2 Bit 0 */
 493        bool high_term:1;               /* Byte 2 Bit 1 */
 494        unsigned char:2;                /* Byte 2 Bits 2-3 */
 495        bool JP1:1;                     /* Byte 2 Bit 4 */
 496        bool JP2:1;                     /* Byte 2 Bit 5 */
 497        bool JP3:1;                     /* Byte 2 Bit 6 */
 498        bool genericinfo_valid:1;       /* Byte 2 Bit 7 */
 499        unsigned char:8;                /* Byte 3 */
 500};
 501
 502/*
 503  Define the Inquire Extended Setup Information reply structure.
 504*/
 505
 506struct blogic_ext_setup {
 507        unsigned char bus_type;         /* Byte 0 */
 508        unsigned char bios_addr;        /* Byte 1 */
 509        unsigned short sg_limit;        /* Bytes 2-3 */
 510        unsigned char mbox_count;       /* Byte 4 */
 511        u32 base_mbox_addr;             /* Bytes 5-8 */
 512        struct {
 513                unsigned char:2;        /* Byte 9 Bits 0-1 */
 514                bool fast_on_eisa:1;    /* Byte 9 Bit 2 */
 515                unsigned char:3;        /* Byte 9 Bits 3-5 */
 516                bool level_int:1;       /* Byte 9 Bit 6 */
 517                unsigned char:1;        /* Byte 9 Bit 7 */
 518        } misc;
 519        unsigned char fw_rev[3];        /* Bytes 10-12 */
 520        bool wide:1;                    /* Byte 13 Bit 0 */
 521        bool differential:1;            /* Byte 13 Bit 1 */
 522        bool scam:1;                    /* Byte 13 Bit 2 */
 523        bool ultra:1;                   /* Byte 13 Bit 3 */
 524        bool smart_term:1;              /* Byte 13 Bit 4 */
 525        unsigned char:3;                /* Byte 13 Bits 5-7 */
 526} PACKED;
 527
 528/*
 529  Define the Enable Strict Round Robin Mode request type.
 530*/
 531
 532enum blogic_rr_req {
 533        BLOGIC_AGGRESSIVE_RR = 0,
 534        BLOGIC_STRICT_RR_MODE = 1
 535} PACKED;
 536
 537
 538/*
 539  Define the Fetch Host Adapter Local RAM request type.
 540*/
 541
 542#define BLOGIC_BIOS_BASE                0
 543#define BLOGIC_AUTOSCSI_BASE            64
 544
 545struct blogic_fetch_localram {
 546        unsigned char offset;   /* Byte 0 */
 547        unsigned char count;    /* Byte 1 */
 548};
 549
 550/*
 551  Define the Host Adapter Local RAM AutoSCSI structure.
 552*/
 553
 554struct blogic_autoscsi {
 555        unsigned char factory_sig[2];           /* Bytes 0-1 */
 556        unsigned char info_bytes;               /* Byte 2 */
 557        unsigned char adapter_type[6];          /* Bytes 3-8 */
 558        unsigned char:8;                        /* Byte 9 */
 559        bool floppy:1;                          /* Byte 10 Bit 0 */
 560        bool floppy_sec:1;                      /* Byte 10 Bit 1 */
 561        bool level_int:1;                       /* Byte 10 Bit 2 */
 562        unsigned char:2;                        /* Byte 10 Bits 3-4 */
 563        unsigned char systemram_bios:3;         /* Byte 10 Bits 5-7 */
 564        unsigned char dma_ch:7;                 /* Byte 11 Bits 0-6 */
 565        bool dma_autoconf:1;                    /* Byte 11 Bit 7 */
 566        unsigned char irq_ch:7;                 /* Byte 12 Bits 0-6 */
 567        bool irq_autoconf:1;                    /* Byte 12 Bit 7 */
 568        unsigned char dma_tx_rate;              /* Byte 13 */
 569        unsigned char scsi_id;                  /* Byte 14 */
 570        bool low_term:1;                        /* Byte 15 Bit 0 */
 571        bool parity:1;                          /* Byte 15 Bit 1 */
 572        bool high_term:1;                       /* Byte 15 Bit 2 */
 573        bool noisy_cable:1;                     /* Byte 15 Bit 3 */
 574        bool fast_sync_neg:1;                   /* Byte 15 Bit 4 */
 575        bool reset_enabled:1;                   /* Byte 15 Bit 5 */
 576        bool:1;                                 /* Byte 15 Bit 6 */
 577        bool active_negation:1;                 /* Byte 15 Bit 7 */
 578        unsigned char bus_on_delay;             /* Byte 16 */
 579        unsigned char bus_off_delay;            /* Byte 17 */
 580        bool bios_enabled:1;                    /* Byte 18 Bit 0 */
 581        bool int19_redir_enabled:1;             /* Byte 18 Bit 1 */
 582        bool ext_trans_enable:1;                /* Byte 18 Bit 2 */
 583        bool removable_as_fixed:1;              /* Byte 18 Bit 3 */
 584        bool:1;                                 /* Byte 18 Bit 4 */
 585        bool morethan2_drives:1;                /* Byte 18 Bit 5 */
 586        bool bios_int:1;                        /* Byte 18 Bit 6 */
 587        bool floptical:1;                       /* Byte 19 Bit 7 */
 588        unsigned short dev_enabled;             /* Bytes 19-20 */
 589        unsigned short wide_ok;                 /* Bytes 21-22 */
 590        unsigned short fast_ok;                 /* Bytes 23-24 */
 591        unsigned short sync_ok;                 /* Bytes 25-26 */
 592        unsigned short discon_ok;               /* Bytes 27-28 */
 593        unsigned short send_start_unit;         /* Bytes 29-30 */
 594        unsigned short ignore_bios_scan;        /* Bytes 31-32 */
 595        unsigned char pci_int_pin:2;            /* Byte 33 Bits 0-1 */
 596        unsigned char adapter_ioport:2;         /* Byte 33 Bits 2-3 */
 597        bool strict_rr_enabled:1;               /* Byte 33 Bit 4 */
 598        bool vesabus_33mhzplus:1;               /* Byte 33 Bit 5 */
 599        bool vesa_burst_write:1;                /* Byte 33 Bit 6 */
 600        bool vesa_burst_read:1;                 /* Byte 33 Bit 7 */
 601        unsigned short ultra_ok;                /* Bytes 34-35 */
 602        unsigned int:32;                        /* Bytes 36-39 */
 603        unsigned char:8;                        /* Byte 40 */
 604        unsigned char autoscsi_maxlun;          /* Byte 41 */
 605        bool:1;                                 /* Byte 42 Bit 0 */
 606        bool scam_dominant:1;                   /* Byte 42 Bit 1 */
 607        bool scam_enabled:1;                    /* Byte 42 Bit 2 */
 608        bool scam_lev2:1;                       /* Byte 42 Bit 3 */
 609        unsigned char:4;                        /* Byte 42 Bits 4-7 */
 610        bool int13_exten:1;                     /* Byte 43 Bit 0 */
 611        bool:1;                                 /* Byte 43 Bit 1 */
 612        bool cd_boot:1;                         /* Byte 43 Bit 2 */
 613        unsigned char:5;                        /* Byte 43 Bits 3-7 */
 614        unsigned char boot_id:4;                /* Byte 44 Bits 0-3 */
 615        unsigned char boot_ch:4;                /* Byte 44 Bits 4-7 */
 616        unsigned char force_scan_order:1;       /* Byte 45 Bit 0 */
 617        unsigned char:7;                        /* Byte 45 Bits 1-7 */
 618        unsigned short nontagged_to_alt_ok;     /* Bytes 46-47 */
 619        unsigned short reneg_sync_on_check;     /* Bytes 48-49 */
 620        unsigned char rsvd[10];                 /* Bytes 50-59 */
 621        unsigned char manuf_diag[2];            /* Bytes 60-61 */
 622        unsigned short cksum;                   /* Bytes 62-63 */
 623} PACKED;
 624
 625/*
 626  Define the Host Adapter Local RAM Auto SCSI Byte 45 structure.
 627*/
 628
 629struct blogic_autoscsi_byte45 {
 630        unsigned char force_scan_order:1;       /* Bit 0 */
 631        unsigned char:7;        /* Bits 1-7 */
 632};
 633
 634/*
 635  Define the Host Adapter Local RAM BIOS Drive Map Byte structure.
 636*/
 637
 638#define BLOGIC_BIOS_DRVMAP              17
 639
 640struct blogic_bios_drvmap {
 641        unsigned char tgt_idbit3:1;                     /* Bit 0 */
 642        unsigned char:2;                                /* Bits 1-2 */
 643        enum blogic_bios_diskgeometry diskgeom:2;       /* Bits 3-4 */
 644        unsigned char tgt_id:3;                         /* Bits 5-7 */
 645};
 646
 647/*
 648  Define the Set CCB Format request type.  Extended LUN Format CCBs are
 649  necessary to support more than 8 Logical Units per Target Device.
 650*/
 651
 652enum blogic_setccb_fmt {
 653        BLOGIC_LEGACY_LUN_CCB = 0,
 654        BLOGIC_EXT_LUN_CCB = 1
 655} PACKED;
 656
 657/*
 658  Define the Outgoing Mailbox Action Codes.
 659*/
 660
 661enum blogic_action {
 662        BLOGIC_OUTBOX_FREE = 0x00,
 663        BLOGIC_MBOX_START = 0x01,
 664        BLOGIC_MBOX_ABORT = 0x02
 665} PACKED;
 666
 667
 668/*
 669  Define the Incoming Mailbox Completion Codes.  The MultiMaster Firmware
 670  only uses codes 0 - 4.  The FlashPoint SCCB Manager has no mailboxes, so
 671  completion codes are stored in the CCB; it only uses codes 1, 2, 4, and 5.
 672*/
 673
 674enum blogic_cmplt_code {
 675        BLOGIC_INBOX_FREE = 0x00,
 676        BLOGIC_CMD_COMPLETE_GOOD = 0x01,
 677        BLOGIC_CMD_ABORT_BY_HOST = 0x02,
 678        BLOGIC_CMD_NOTFOUND = 0x03,
 679        BLOGIC_CMD_COMPLETE_ERROR = 0x04,
 680        BLOGIC_INVALID_CCB = 0x05
 681} PACKED;
 682
 683/*
 684  Define the Command Control Block (CCB) Opcodes.
 685*/
 686
 687enum blogic_ccb_opcode {
 688        BLOGIC_INITIATOR_CCB = 0x00,
 689        BLOGIC_TGT_CCB = 0x01,
 690        BLOGIC_INITIATOR_CCB_SG = 0x02,
 691        BLOGIC_INITIATOR_CCBB_RESIDUAL = 0x03,
 692        BLOGIC_INITIATOR_CCB_SG_RESIDUAL = 0x04,
 693        BLOGIC_BDR = 0x81
 694} PACKED;
 695
 696
 697/*
 698  Define the CCB Data Direction Codes.
 699*/
 700
 701enum blogic_datadir {
 702        BLOGIC_UNCHECKED_TX = 0,
 703        BLOGIC_DATAIN_CHECKED = 1,
 704        BLOGIC_DATAOUT_CHECKED = 2,
 705        BLOGIC_NOTX = 3
 706};
 707
 708
 709/*
 710  Define the Host Adapter Status Codes.  The MultiMaster Firmware does not
 711  return status code 0x0C; it uses 0x12 for both overruns and underruns.
 712*/
 713
 714enum blogic_adapter_status {
 715        BLOGIC_CMD_CMPLT_NORMAL = 0x00,
 716        BLOGIC_LINK_CMD_CMPLT = 0x0A,
 717        BLOGIC_LINK_CMD_CMPLT_FLAG = 0x0B,
 718        BLOGIC_DATA_UNDERRUN = 0x0C,
 719        BLOGIC_SELECT_TIMEOUT = 0x11,
 720        BLOGIC_DATA_OVERRUN = 0x12,
 721        BLOGIC_NOEXPECT_BUSFREE = 0x13,
 722        BLOGIC_INVALID_BUSPHASE = 0x14,
 723        BLOGIC_INVALID_OUTBOX_CODE = 0x15,
 724        BLOGIC_INVALID_CMD_CODE = 0x16,
 725        BLOGIC_LINKCCB_BADLUN = 0x17,
 726        BLOGIC_BAD_CMD_PARAM = 0x1A,
 727        BLOGIC_AUTOREQSENSE_FAIL = 0x1B,
 728        BLOGIC_TAGQUEUE_REJECT = 0x1C,
 729        BLOGIC_BAD_MSG_RCVD = 0x1D,
 730        BLOGIC_HW_FAIL = 0x20,
 731        BLOGIC_NORESPONSE_TO_ATN = 0x21,
 732        BLOGIC_HW_RESET = 0x22,
 733        BLOGIC_RST_FROM_OTHERDEV = 0x23,
 734        BLOGIC_BAD_RECONNECT = 0x24,
 735        BLOGIC_HW_BDR = 0x25,
 736        BLOGIC_ABRT_QUEUE = 0x26,
 737        BLOGIC_ADAPTER_SW_ERROR = 0x27,
 738        BLOGIC_HW_TIMEOUT = 0x30,
 739        BLOGIC_PARITY_ERR = 0x34
 740} PACKED;
 741
 742
 743/*
 744  Define the SCSI Target Device Status Codes.
 745*/
 746
 747enum blogic_tgt_status {
 748        BLOGIC_OP_GOOD = 0x00,
 749        BLOGIC_CHECKCONDITION = 0x02,
 750        BLOGIC_DEVBUSY = 0x08
 751} PACKED;
 752
 753/*
 754  Define the Queue Tag Codes.
 755*/
 756
 757enum blogic_queuetag {
 758        BLOGIC_SIMPLETAG = 0,
 759        BLOGIC_HEADTAG = 1,
 760        BLOGIC_ORDEREDTAG = 2,
 761        BLOGIC_RSVDTAG = 3
 762};
 763
 764/*
 765  Define the SCSI Command Descriptor Block (CDB).
 766*/
 767
 768#define BLOGIC_CDB_MAXLEN                       12
 769
 770
 771/*
 772  Define the Scatter/Gather Segment structure required by the MultiMaster
 773  Firmware Interface and the FlashPoint SCCB Manager.
 774*/
 775
 776struct blogic_sg_seg {
 777        u32 segbytes;   /* Bytes 0-3 */
 778        u32 segdata;    /* Bytes 4-7 */
 779};
 780
 781/*
 782  Define the Driver CCB Status Codes.
 783*/
 784
 785enum blogic_ccb_status {
 786        BLOGIC_CCB_FREE = 0,
 787        BLOGIC_CCB_ACTIVE = 1,
 788        BLOGIC_CCB_COMPLETE = 2,
 789        BLOGIC_CCB_RESET = 3
 790} PACKED;
 791
 792
 793/*
 794  Define the 32 Bit Mode Command Control Block (CCB) structure.  The first 40
 795  bytes are defined by and common to both the MultiMaster Firmware and the
 796  FlashPoint SCCB Manager.  The next 60 bytes are defined by the FlashPoint
 797  SCCB Manager.  The remaining components are defined by the Linux BusLogic
 798  Driver.  Extended LUN Format CCBs differ from Legacy LUN Format 32 Bit Mode
 799  CCBs only in having the TagEnable and QueueTag fields moved from byte 17 to
 800  byte 1, and the Logical Unit field in byte 17 expanded to 6 bits.  In theory,
 801  Extended LUN Format CCBs can support up to 64 Logical Units, but in practice
 802  many devices will respond improperly to Logical Units between 32 and 63, and
 803  the SCSI-2 specification defines Bit 5 as LUNTAR.  Extended LUN Format CCBs
 804  are used by recent versions of the MultiMaster Firmware, as well as by the
 805  FlashPoint SCCB Manager; the FlashPoint SCCB Manager only supports 32 Logical
 806  Units.  Since 64 Logical Units are unlikely to be needed in practice, and
 807  since they are problematic for the above reasons, and since limiting them to
 808  5 bits simplifies the CCB structure definition, this driver only supports
 809  32 Logical Units per Target Device.
 810*/
 811
 812struct blogic_ccb {
 813        /*
 814           MultiMaster Firmware and FlashPoint SCCB Manager Common Portion.
 815         */
 816        enum blogic_ccb_opcode opcode;                  /* Byte 0 */
 817        unsigned char:3;                                /* Byte 1 Bits 0-2 */
 818        enum blogic_datadir datadir:2;                  /* Byte 1 Bits 3-4 */
 819        bool tag_enable:1;                              /* Byte 1 Bit 5 */
 820        enum blogic_queuetag queuetag:2;                /* Byte 1 Bits 6-7 */
 821        unsigned char cdblen;                           /* Byte 2 */
 822        unsigned char sense_datalen;                    /* Byte 3 */
 823        u32 datalen;                                    /* Bytes 4-7 */
 824        void *data;                                     /* Bytes 8-11 */
 825        unsigned char:8;                                /* Byte 12 */
 826        unsigned char:8;                                /* Byte 13 */
 827        enum blogic_adapter_status adapter_status;      /* Byte 14 */
 828        enum blogic_tgt_status tgt_status;              /* Byte 15 */
 829        unsigned char tgt_id;                           /* Byte 16 */
 830        unsigned char lun:5;                            /* Byte 17 Bits 0-4 */
 831        bool legacytag_enable:1;                        /* Byte 17 Bit 5 */
 832        enum blogic_queuetag legacy_tag:2;              /* Byte 17 Bits 6-7 */
 833        unsigned char cdb[BLOGIC_CDB_MAXLEN];           /* Bytes 18-29 */
 834        unsigned char:8;                                /* Byte 30 */
 835        unsigned char:8;                                /* Byte 31 */
 836        u32 rsvd_int;                                   /* Bytes 32-35 */
 837        u32 sensedata;                                  /* Bytes 36-39 */
 838        /*
 839           FlashPoint SCCB Manager Defined Portion.
 840         */
 841        void (*callback) (struct blogic_ccb *);         /* Bytes 40-43 */
 842        u32 base_addr;                                  /* Bytes 44-47 */
 843        enum blogic_cmplt_code comp_code;               /* Byte 48 */
 844#ifdef CONFIG_SCSI_FLASHPOINT
 845        unsigned char:8;                                /* Byte 49 */
 846        u16 os_flags;                                   /* Bytes 50-51 */
 847        unsigned char private[24];                      /* Bytes 52-99 */
 848        void *rsvd1;
 849        void *rsvd2;
 850        unsigned char private2[16];
 851#endif
 852        /*
 853           BusLogic Linux Driver Defined Portion.
 854         */
 855        dma_addr_t allocgrp_head;
 856        unsigned int allocgrp_size;
 857        u32 dma_handle;
 858        enum blogic_ccb_status status;
 859        unsigned long serial;
 860        struct scsi_cmnd *command;
 861        struct blogic_adapter *adapter;
 862        struct blogic_ccb *next;
 863        struct blogic_ccb *next_all;
 864        struct blogic_sg_seg sglist[BLOGIC_SG_LIMIT];
 865};
 866
 867/*
 868  Define the 32 Bit Mode Outgoing Mailbox structure.
 869*/
 870
 871struct blogic_outbox {
 872        u32 ccb;                        /* Bytes 0-3 */
 873        u32:24;                         /* Bytes 4-6 */
 874        enum blogic_action action;      /* Byte 7 */
 875};
 876
 877/*
 878  Define the 32 Bit Mode Incoming Mailbox structure.
 879*/
 880
 881struct blogic_inbox {
 882        u32 ccb;                                        /* Bytes 0-3 */
 883        enum blogic_adapter_status adapter_status;      /* Byte 4 */
 884        enum blogic_tgt_status tgt_status;              /* Byte 5 */
 885        unsigned char:8;                                /* Byte 6 */
 886        enum blogic_cmplt_code comp_code;               /* Byte 7 */
 887};
 888
 889
 890/*
 891  Define the BusLogic Driver Options structure.
 892*/
 893
 894struct blogic_drvr_options {
 895        unsigned short tagq_ok;
 896        unsigned short tagq_ok_mask;
 897        unsigned short bus_settle_time;
 898        unsigned short stop_tgt_inquiry;
 899        unsigned char common_qdepth;
 900        unsigned char qdepth[BLOGIC_MAXDEV];
 901};
 902
 903/*
 904  Define the Host Adapter Target Flags structure.
 905*/
 906
 907struct blogic_tgt_flags {
 908        bool tgt_exists:1;
 909        bool tagq_ok:1;
 910        bool wide_ok:1;
 911        bool tagq_active:1;
 912        bool wide_active:1;
 913        bool cmd_good:1;
 914        bool tgt_info_in:1;
 915};
 916
 917/*
 918  Define the Host Adapter Target Statistics structure.
 919*/
 920
 921#define BLOGIC_SZ_BUCKETS                       10
 922
 923struct blogic_tgt_stats {
 924        unsigned int cmds_tried;
 925        unsigned int cmds_complete;
 926        unsigned int read_cmds;
 927        unsigned int write_cmds;
 928        struct blogic_byte_count bytesread;
 929        struct blogic_byte_count byteswritten;
 930        unsigned int read_sz_buckets[BLOGIC_SZ_BUCKETS];
 931        unsigned int write_sz_buckets[BLOGIC_SZ_BUCKETS];
 932        unsigned short aborts_request;
 933        unsigned short aborts_tried;
 934        unsigned short aborts_done;
 935        unsigned short bdr_request;
 936        unsigned short bdr_tried;
 937        unsigned short bdr_done;
 938        unsigned short adatper_reset_req;
 939        unsigned short adapter_reset_attempt;
 940        unsigned short adapter_reset_done;
 941};
 942
 943/*
 944  Define the FlashPoint Card Handle data type.
 945*/
 946
 947#define FPOINT_BADCARD_HANDLE           0xFFFFFFFFL
 948
 949
 950/*
 951  Define the FlashPoint Information structure.  This structure is defined
 952  by the FlashPoint SCCB Manager.
 953*/
 954
 955struct fpoint_info {
 956        u32 base_addr;                          /* Bytes 0-3 */
 957        bool present;                           /* Byte 4 */
 958        unsigned char irq_ch;                   /* Byte 5 */
 959        unsigned char scsi_id;                  /* Byte 6 */
 960        unsigned char scsi_lun;                 /* Byte 7 */
 961        u16 fw_rev;                             /* Bytes 8-9 */
 962        u16 sync_ok;                            /* Bytes 10-11 */
 963        u16 fast_ok;                            /* Bytes 12-13 */
 964        u16 ultra_ok;                           /* Bytes 14-15 */
 965        u16 discon_ok;                          /* Bytes 16-17 */
 966        u16 wide_ok;                            /* Bytes 18-19 */
 967        bool parity:1;                          /* Byte 20 Bit 0 */
 968        bool wide:1;                            /* Byte 20 Bit 1 */
 969        bool softreset:1;                       /* Byte 20 Bit 2 */
 970        bool ext_trans_enable:1;                /* Byte 20 Bit 3 */
 971        bool low_term:1;                        /* Byte 20 Bit 4 */
 972        bool high_term:1;                       /* Byte 20 Bit 5 */
 973        bool report_underrun:1;                 /* Byte 20 Bit 6 */
 974        bool scam_enabled:1;                    /* Byte 20 Bit 7 */
 975        bool scam_lev2:1;                       /* Byte 21 Bit 0 */
 976        unsigned char:7;                        /* Byte 21 Bits 1-7 */
 977        unsigned char family;                   /* Byte 22 */
 978        unsigned char bus_type;                 /* Byte 23 */
 979        unsigned char model[3];                 /* Bytes 24-26 */
 980        unsigned char relative_cardnum;         /* Byte 27 */
 981        unsigned char rsvd[4];                  /* Bytes 28-31 */
 982        u32 os_rsvd;                            /* Bytes 32-35 */
 983        unsigned char translation_info[4];      /* Bytes 36-39 */
 984        u32 rsvd2[5];                           /* Bytes 40-59 */
 985        u32 sec_range;                          /* Bytes 60-63 */
 986};
 987
 988/*
 989  Define the BusLogic Driver Host Adapter structure.
 990*/
 991
 992struct blogic_adapter {
 993        struct Scsi_Host *scsi_host;
 994        struct pci_dev *pci_device;
 995        enum blogic_adapter_type adapter_type;
 996        enum blogic_adapter_bus_type adapter_bus_type;
 997        unsigned long io_addr;
 998        unsigned long pci_addr;
 999        unsigned short addr_count;
1000        unsigned char host_no;
1001        unsigned char model[9];
1002        unsigned char fw_ver[6];
1003        unsigned char full_model[18];
1004        unsigned char bus;
1005        unsigned char dev;
1006        unsigned char irq_ch;
1007        unsigned char dma_ch;
1008        unsigned char scsi_id;
1009        bool irq_acquired:1;
1010        bool dma_chan_acquired:1;
1011        bool ext_trans_enable:1;
1012        bool parity:1;
1013        bool reset_enabled:1;
1014        bool level_int:1;
1015        bool wide:1;
1016        bool differential:1;
1017        bool scam:1;
1018        bool ultra:1;
1019        bool ext_lun:1;
1020        bool terminfo_valid:1;
1021        bool low_term:1;
1022        bool high_term:1;
1023        bool need_bouncebuf:1;
1024        bool strict_rr:1;
1025        bool scam_enabled:1;
1026        bool scam_lev2:1;
1027        bool adapter_initd:1;
1028        bool adapter_extreset:1;
1029        bool adapter_intern_err:1;
1030        bool processing_ccbs;
1031        volatile bool adapter_cmd_complete;
1032        unsigned short adapter_sglimit;
1033        unsigned short drvr_sglimit;
1034        unsigned short maxdev;
1035        unsigned short maxlun;
1036        unsigned short mbox_count;
1037        unsigned short initccbs;
1038        unsigned short inc_ccbs;
1039        unsigned short alloc_ccbs;
1040        unsigned short drvr_qdepth;
1041        unsigned short adapter_qdepth;
1042        unsigned short untag_qdepth;
1043        unsigned short common_qdepth;
1044        unsigned short bus_settle_time;
1045        unsigned short sync_ok;
1046        unsigned short fast_ok;
1047        unsigned short ultra_ok;
1048        unsigned short wide_ok;
1049        unsigned short discon_ok;
1050        unsigned short tagq_ok;
1051        unsigned short ext_resets;
1052        unsigned short adapter_intern_errors;
1053        unsigned short tgt_count;
1054        unsigned short msgbuflen;
1055        u32 bios_addr;
1056        struct blogic_drvr_options *drvr_opts;
1057        struct fpoint_info fpinfo;
1058        void *cardhandle;
1059        struct list_head host_list;
1060        struct blogic_ccb *all_ccbs;
1061        struct blogic_ccb *free_ccbs;
1062        struct blogic_ccb *firstccb;
1063        struct blogic_ccb *lastccb;
1064        struct blogic_ccb *bdr_pend[BLOGIC_MAXDEV];
1065        struct blogic_tgt_flags tgt_flags[BLOGIC_MAXDEV];
1066        unsigned char qdepth[BLOGIC_MAXDEV];
1067        unsigned char sync_period[BLOGIC_MAXDEV];
1068        unsigned char sync_offset[BLOGIC_MAXDEV];
1069        unsigned char active_cmds[BLOGIC_MAXDEV];
1070        unsigned int cmds_since_rst[BLOGIC_MAXDEV];
1071        unsigned long last_seqpoint[BLOGIC_MAXDEV];
1072        unsigned long last_resettried[BLOGIC_MAXDEV];
1073        unsigned long last_resetdone[BLOGIC_MAXDEV];
1074        struct blogic_outbox *first_outbox;
1075        struct blogic_outbox *last_outbox;
1076        struct blogic_outbox *next_outbox;
1077        struct blogic_inbox *first_inbox;
1078        struct blogic_inbox *last_inbox;
1079        struct blogic_inbox *next_inbox;
1080        struct blogic_tgt_stats tgt_stats[BLOGIC_MAXDEV];
1081        unsigned char *mbox_space;
1082        dma_addr_t mbox_space_handle;
1083        unsigned int mbox_sz;
1084        unsigned long ccb_offset;
1085        char msgbuf[BLOGIC_MSGBUF_SIZE];
1086};
1087
1088/*
1089  Define a structure for the BIOS Disk Parameters.
1090*/
1091
1092struct bios_diskparam {
1093        int heads;
1094        int sectors;
1095        int cylinders;
1096};
1097
1098/*
1099  Define a structure for the SCSI Inquiry command results.
1100*/
1101
1102struct scsi_inquiry {
1103        unsigned char devtype:5;        /* Byte 0 Bits 0-4 */
1104        unsigned char dev_qual:3;       /* Byte 0 Bits 5-7 */
1105        unsigned char dev_modifier:7;   /* Byte 1 Bits 0-6 */
1106        bool rmb:1;                     /* Byte 1 Bit 7 */
1107        unsigned char ansi_ver:3;       /* Byte 2 Bits 0-2 */
1108        unsigned char ecma_ver:3;       /* Byte 2 Bits 3-5 */
1109        unsigned char iso_ver:2;        /* Byte 2 Bits 6-7 */
1110        unsigned char resp_fmt:4;       /* Byte 3 Bits 0-3 */
1111        unsigned char:2;                /* Byte 3 Bits 4-5 */
1112        bool TrmIOP:1;                  /* Byte 3 Bit 6 */
1113        bool AENC:1;                    /* Byte 3 Bit 7 */
1114        unsigned char addl_len;         /* Byte 4 */
1115        unsigned char:8;                /* Byte 5 */
1116        unsigned char:8;                /* Byte 6 */
1117        bool SftRe:1;                   /* Byte 7 Bit 0 */
1118        bool CmdQue:1;                  /* Byte 7 Bit 1 */
1119        bool:1;                         /* Byte 7 Bit 2 */
1120        bool linked:1;                  /* Byte 7 Bit 3 */
1121        bool sync:1;                    /* Byte 7 Bit 4 */
1122        bool WBus16:1;                  /* Byte 7 Bit 5 */
1123        bool WBus32:1;                  /* Byte 7 Bit 6 */
1124        bool RelAdr:1;                  /* Byte 7 Bit 7 */
1125        unsigned char vendor[8];        /* Bytes 8-15 */
1126        unsigned char product[16];      /* Bytes 16-31 */
1127        unsigned char product_rev[4];   /* Bytes 32-35 */
1128};
1129
1130
1131/*
1132  Define functions to provide an abstraction for reading and writing the
1133  Host Adapter I/O Registers.
1134*/
1135
1136static inline void blogic_busreset(struct blogic_adapter *adapter)
1137{
1138        union blogic_cntrl_reg cr;
1139        cr.all = 0;
1140        cr.cr.bus_reset = true;
1141        outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG);
1142}
1143
1144static inline void blogic_intreset(struct blogic_adapter *adapter)
1145{
1146        union blogic_cntrl_reg cr;
1147        cr.all = 0;
1148        cr.cr.int_reset = true;
1149        outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG);
1150}
1151
1152static inline void blogic_softreset(struct blogic_adapter *adapter)
1153{
1154        union blogic_cntrl_reg cr;
1155        cr.all = 0;
1156        cr.cr.soft_reset = true;
1157        outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG);
1158}
1159
1160static inline void blogic_hardreset(struct blogic_adapter *adapter)
1161{
1162        union blogic_cntrl_reg cr;
1163        cr.all = 0;
1164        cr.cr.hard_reset = true;
1165        outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG);
1166}
1167
1168static inline unsigned char blogic_rdstatus(struct blogic_adapter *adapter)
1169{
1170        return inb(adapter->io_addr + BLOGIC_STATUS_REG);
1171}
1172
1173static inline void blogic_setcmdparam(struct blogic_adapter *adapter,
1174                                        unsigned char value)
1175{
1176        outb(value, adapter->io_addr + BLOGIC_CMD_PARM_REG);
1177}
1178
1179static inline unsigned char blogic_rddatain(struct blogic_adapter *adapter)
1180{
1181        return inb(adapter->io_addr + BLOGIC_DATAIN_REG);
1182}
1183
1184static inline unsigned char blogic_rdint(struct blogic_adapter *adapter)
1185{
1186        return inb(adapter->io_addr + BLOGIC_INT_REG);
1187}
1188
1189static inline unsigned char blogic_rdgeom(struct blogic_adapter *adapter)
1190{
1191        return inb(adapter->io_addr + BLOGIC_GEOMETRY_REG);
1192}
1193
1194/*
1195  blogic_execmbox issues an Execute Mailbox Command, which
1196  notifies the Host Adapter that an entry has been made in an Outgoing
1197  Mailbox.
1198*/
1199
1200static inline void blogic_execmbox(struct blogic_adapter *adapter)
1201{
1202        blogic_setcmdparam(adapter, BLOGIC_EXEC_MBOX_CMD);
1203}
1204
1205/*
1206  blogic_delay waits for Seconds to elapse.
1207*/
1208
1209static inline void blogic_delay(int seconds)
1210{
1211        mdelay(1000 * seconds);
1212}
1213
1214/*
1215  virt_to_32bit_virt maps between Kernel Virtual Addresses and
1216  32 bit Kernel Virtual Addresses.  This avoids compilation warnings
1217  on 64 bit architectures.
1218*/
1219
1220static inline u32 virt_to_32bit_virt(void *virt_addr)
1221{
1222        return (u32) (unsigned long) virt_addr;
1223}
1224
1225/*
1226  blogic_inc_count increments counter by 1, stopping at
1227  65535 rather than wrapping around to 0.
1228*/
1229
1230static inline void blogic_inc_count(unsigned short *count)
1231{
1232        if (*count < 65535)
1233                (*count)++;
1234}
1235
1236/*
1237  blogic_addcount increments Byte Counter by Amount.
1238*/
1239
1240static inline void blogic_addcount(struct blogic_byte_count *bytecount,
1241                                        unsigned int amount)
1242{
1243        bytecount->units += amount;
1244        if (bytecount->units > 999999999) {
1245                bytecount->units -= 1000000000;
1246                bytecount->billions++;
1247        }
1248}
1249
1250/*
1251  blogic_incszbucket increments the Bucket for Amount.
1252*/
1253
1254static inline void blogic_incszbucket(unsigned int *cmdsz_buckets,
1255                                        unsigned int amount)
1256{
1257        int index = 0;
1258        if (amount < 8 * 1024) {
1259                if (amount < 2 * 1024)
1260                        index = (amount < 1 * 1024 ? 0 : 1);
1261                else
1262                        index = (amount < 4 * 1024 ? 2 : 3);
1263        } else if (amount < 128 * 1024) {
1264                if (amount < 32 * 1024)
1265                        index = (amount < 16 * 1024 ? 4 : 5);
1266                else
1267                        index = (amount < 64 * 1024 ? 6 : 7);
1268        } else
1269                index = (amount < 256 * 1024 ? 8 : 9);
1270        cmdsz_buckets[index]++;
1271}
1272
1273/*
1274  Define the version number of the FlashPoint Firmware (SCCB Manager).
1275*/
1276
1277#define FLASHPOINT_FW_VER               "5.02"
1278
1279/*
1280  Define the possible return values from FlashPoint_HandleInterrupt.
1281*/
1282
1283#define FPOINT_NORMAL_INT               0x00
1284#define FPOINT_INTERN_ERR               0xFE
1285#define FPOINT_EXT_RESET                0xFF
1286
1287/*
1288  Define prototypes for the forward referenced BusLogic Driver
1289  Internal Functions.
1290*/
1291
1292static const char *blogic_drvr_info(struct Scsi_Host *);
1293static int blogic_qcmd(struct Scsi_Host *h, struct scsi_cmnd *);
1294static int blogic_diskparam(struct scsi_device *, struct block_device *, sector_t, int *);
1295static int blogic_slaveconfig(struct scsi_device *);
1296static void blogic_qcompleted_ccb(struct blogic_ccb *);
1297static irqreturn_t blogic_inthandler(int, void *);
1298static int blogic_resetadapter(struct blogic_adapter *, bool hard_reset);
1299static void blogic_msg(enum blogic_msglevel, char *, struct blogic_adapter *, ...);
1300static int __init blogic_setup(char *);
1301
1302#endif                          /* _BUSLOGIC_H */
1303
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