root/drivers/scsi/BusLogic.h

INCLUDED FROM

DEFINITIONS

1. blogic_busreset
2. blogic_intreset
3. blogic_softreset
4. blogic_hardreset
5. blogic_rdstatus
6. blogic_setcmdparam
7. blogic_rddatain
8. blogic_rdint
9. blogic_rdgeom
10. blogic_execmbox
11. blogic_delay
12. virt_to_32bit_virt
13. blogic_inc_count
14. blogic_addcount
15. blogic_incszbucket

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3 
   4   Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters
   5 
   6   Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>
   7 
   8 
   9   The author respectfully requests that any modifications to this software be
  10   sent directly to him for evaluation and testing.
  11 
  12   Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose
  13   advice has been invaluable, to David Gentzel, for writing the original Linux
  14   BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site.
  15 
  16   Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB
  17   Manager available as freely redistributable source code.
  18 
  19 */
  20 
  21 #ifndef _BUSLOGIC_H
  22 #define _BUSLOGIC_H
  23 
  24 
  25 #ifndef PACKED
  26 #define PACKED __attribute__((packed))
  27 #endif
  28 
  29 /*
  30   Define the maximum number of BusLogic Host Adapters supported by this driver.
  31 */
  32 
  33 #define BLOGIC_MAX_ADAPTERS             16
  34 
  35 
  36 /*
  37   Define the maximum number of Target Devices supported by this driver.
  38 */
  39 
  40 #define BLOGIC_MAXDEV                   16
  41 
  42 
  43 /*
  44   Define the maximum number of Scatter/Gather Segments used by this driver.
  45   For optimal performance, it is important that this limit be at least as
  46   large as the largest single request generated by the I/O Subsystem.
  47 */
  48 
  49 #define BLOGIC_SG_LIMIT         128
  50 
  51 
  52 /*
  53   Define the maximum, maximum automatic, minimum automatic, and default Queue
  54   Depth to allow for Target Devices depending on whether or not they support
  55   Tagged Queuing and whether or not ISA Bounce Buffers are required.
  56 */
  57 
  58 #define BLOGIC_MAX_TAG_DEPTH            64
  59 #define BLOGIC_MAX_AUTO_TAG_DEPTH       28
  60 #define BLOGIC_MIN_AUTO_TAG_DEPTH       7
  61 #define BLOGIC_TAG_DEPTH_BB             3
  62 #define BLOGIC_UNTAG_DEPTH              3
  63 #define BLOGIC_UNTAG_DEPTH_BB           2
  64 
  65 
  66 /*
  67   Define the default amount of time in seconds to wait between a Host Adapter
  68   Hard Reset which initiates a SCSI Bus Reset and issuing any SCSI commands.
  69   Some SCSI devices get confused if they receive SCSI commands too soon after
  70   a SCSI Bus Reset.
  71 */
  72 
  73 #define BLOGIC_BUS_SETTLE_TIME          2
  74 
  75 
  76 /*
  77   Define the maximum number of Mailboxes that should be used for MultiMaster
  78   Host Adapters.  This number is chosen to be larger than the maximum Host
  79   Adapter Queue Depth and small enough so that the Host Adapter structure
  80   does not cross an allocation block size boundary.
  81 */
  82 
  83 #define BLOGIC_MAX_MAILBOX              211
  84 
  85 
  86 /*
  87   Define the number of CCBs that should be allocated as a group to optimize
  88   Kernel memory allocation.
  89 */
  90 
  91 #define BLOGIC_CCB_GRP_ALLOCSIZE        7
  92 
  93 
  94 /*
  95   Define the Host Adapter Line and Message Buffer Sizes.
  96 */
  97 
  98 #define BLOGIC_LINEBUF_SIZE             100
  99 #define BLOGIC_MSGBUF_SIZE              9700
 100 
 101 
 102 /*
 103   Define the Driver Message Levels.
 104 */
 105 
 106 enum blogic_msglevel {
 107         BLOGIC_ANNOUNCE_LEVEL = 0,
 108         BLOGIC_INFO_LEVEL = 1,
 109         BLOGIC_NOTICE_LEVEL = 2,
 110         BLOGIC_WARN_LEVEL = 3,
 111         BLOGIC_ERR_LEVEL = 4
 112 };
 113 
 114 static char *blogic_msglevelmap[] = { KERN_NOTICE, KERN_NOTICE, KERN_NOTICE, KERN_WARNING, KERN_ERR };
 115 
 116 
 117 /*
 118   Define Driver Message macros.
 119 */
 120 
 121 #define blogic_announce(format, args...) \
 122         blogic_msg(BLOGIC_ANNOUNCE_LEVEL, format, ##args)
 123 
 124 #define blogic_info(format, args...) \
 125         blogic_msg(BLOGIC_INFO_LEVEL, format, ##args)
 126 
 127 #define blogic_notice(format, args...) \
 128         blogic_msg(BLOGIC_NOTICE_LEVEL, format, ##args)
 129 
 130 #define blogic_warn(format, args...) \
 131         blogic_msg(BLOGIC_WARN_LEVEL, format, ##args)
 132 
 133 #define blogic_err(format, args...) \
 134         blogic_msg(BLOGIC_ERR_LEVEL, format, ##args)
 135 
 136 
 137 /*
 138   Define the types of BusLogic Host Adapters that are supported and the number
 139   of I/O Addresses required by each type.
 140 */
 141 
 142 enum blogic_adapter_type {
 143         BLOGIC_MULTIMASTER = 1,
 144         BLOGIC_FLASHPOINT = 2
 145 } PACKED;
 146 
 147 #define BLOGIC_MULTIMASTER_ADDR_COUNT   4
 148 #define BLOGIC_FLASHPOINT_ADDR_COUNT    256
 149 
 150 static int blogic_adapter_addr_count[3] = { 0, BLOGIC_MULTIMASTER_ADDR_COUNT, BLOGIC_FLASHPOINT_ADDR_COUNT };
 151 
 152 
 153 /*
 154   Define macros for testing the Host Adapter Type.
 155 */
 156 
 157 #ifdef CONFIG_SCSI_FLASHPOINT
 158 
 159 #define blogic_multimaster_type(adapter) \
 160         (adapter->adapter_type == BLOGIC_MULTIMASTER)
 161 
 162 #define blogic_flashpoint_type(adapter) \
 163         (adapter->adapter_type == BLOGIC_FLASHPOINT)
 164 
 165 #else
 166 
 167 #define blogic_multimaster_type(adapter)        (true)
 168 #define blogic_flashpoint_type(adapter)         (false)
 169 
 170 #endif
 171 
 172 
 173 /*
 174   Define the possible Host Adapter Bus Types.
 175 */
 176 
 177 enum blogic_adapter_bus_type {
 178         BLOGIC_UNKNOWN_BUS = 0,
 179         BLOGIC_ISA_BUS = 1,
 180         BLOGIC_EISA_BUS = 2,
 181         BLOGIC_PCI_BUS = 3,
 182         BLOGIC_VESA_BUS = 4,
 183         BLOGIC_MCA_BUS = 5
 184 } PACKED;
 185 
 186 static char *blogic_adapter_busnames[] = { "Unknown", "ISA", "EISA", "PCI", "VESA", "MCA" };
 187 
 188 static enum blogic_adapter_bus_type blogic_adater_bus_types[] = {
 189         BLOGIC_VESA_BUS,        /* BT-4xx */
 190         BLOGIC_ISA_BUS,         /* BT-5xx */
 191         BLOGIC_MCA_BUS,         /* BT-6xx */
 192         BLOGIC_EISA_BUS,        /* BT-7xx */
 193         BLOGIC_UNKNOWN_BUS,     /* BT-8xx */
 194         BLOGIC_PCI_BUS          /* BT-9xx */
 195 };
 196 
 197 /*
 198   Define the possible Host Adapter BIOS Disk Geometry Translations.
 199 */
 200 
 201 enum blogic_bios_diskgeometry {
 202         BLOGIC_BIOS_NODISK = 0,
 203         BLOGIC_BIOS_DISK64x32 = 1,
 204         BLOGIC_BIOS_DISK128x32 = 2,
 205         BLOGIC_BIOS_DISK255x63 = 3
 206 } PACKED;
 207 
 208 
 209 /*
 210   Define a 10^18 Statistics Byte Counter data type.
 211 */
 212 
 213 struct blogic_byte_count {
 214         unsigned int units;
 215         unsigned int billions;
 216 };
 217 
 218 
 219 /*
 220   Define the structure for I/O Address and Bus Probing Information.
 221 */
 222 
 223 struct blogic_probeinfo {
 224         enum blogic_adapter_type adapter_type;
 225         enum blogic_adapter_bus_type adapter_bus_type;
 226         unsigned long io_addr;
 227         unsigned long pci_addr;
 228         struct pci_dev *pci_device;
 229         unsigned char bus;
 230         unsigned char dev;
 231         unsigned char irq_ch;
 232 };
 233 
 234 /*
 235   Define the Probe Options.
 236 */
 237 
 238 struct blogic_probe_options {
 239         bool noprobe:1;                 /* Bit 0 */
 240         bool noprobe_isa:1;             /* Bit 1 */
 241         bool noprobe_pci:1;             /* Bit 2 */
 242         bool nosort_pci:1;              /* Bit 3 */
 243         bool multimaster_first:1;       /* Bit 4 */
 244         bool flashpoint_first:1;        /* Bit 5 */
 245         bool limited_isa:1;             /* Bit 6 */
 246         bool probe330:1;                /* Bit 7 */
 247         bool probe334:1;                /* Bit 8 */
 248         bool probe230:1;                /* Bit 9 */
 249         bool probe234:1;                /* Bit 10 */
 250         bool probe130:1;                /* Bit 11 */
 251         bool probe134:1;                /* Bit 12 */
 252 };
 253 
 254 /*
 255   Define the Global Options.
 256 */
 257 
 258 struct blogic_global_options {
 259         bool trace_probe:1;     /* Bit 0 */
 260         bool trace_hw_reset:1;  /* Bit 1 */
 261         bool trace_config:1;    /* Bit 2 */
 262         bool trace_err:1;       /* Bit 3 */
 263 };
 264 
 265 /*
 266   Define the BusLogic SCSI Host Adapter I/O Register Offsets.
 267 */
 268 
 269 #define BLOGIC_CNTRL_REG        0       /* WO register */
 270 #define BLOGIC_STATUS_REG       0       /* RO register */
 271 #define BLOGIC_CMD_PARM_REG     1       /* WO register */
 272 #define BLOGIC_DATAIN_REG       1       /* RO register */
 273 #define BLOGIC_INT_REG          2       /* RO register */
 274 #define BLOGIC_GEOMETRY_REG     3       /* RO register */
 275 
 276 /*
 277   Define the structure of the write-only Control Register.
 278 */
 279 
 280 union blogic_cntrl_reg {
 281         unsigned char all;
 282         struct {
 283                 unsigned char:4;        /* Bits 0-3 */
 284                 bool bus_reset:1;       /* Bit 4 */
 285                 bool int_reset:1;       /* Bit 5 */
 286                 bool soft_reset:1;      /* Bit 6 */
 287                 bool hard_reset:1;      /* Bit 7 */
 288         } cr;
 289 };
 290 
 291 /*
 292   Define the structure of the read-only Status Register.
 293 */
 294 
 295 union blogic_stat_reg {
 296         unsigned char all;
 297         struct {
 298                 bool cmd_invalid:1;     /* Bit 0 */
 299                 bool rsvd:1;            /* Bit 1 */
 300                 bool datain_ready:1;    /* Bit 2 */
 301                 bool cmd_param_busy:1;  /* Bit 3 */
 302                 bool adapter_ready:1;   /* Bit 4 */
 303                 bool init_reqd:1;       /* Bit 5 */
 304                 bool diag_failed:1;     /* Bit 6 */
 305                 bool diag_active:1;     /* Bit 7 */
 306         } sr;
 307 };
 308 
 309 /*
 310   Define the structure of the read-only Interrupt Register.
 311 */
 312 
 313 union blogic_int_reg {
 314         unsigned char all;
 315         struct {
 316                 bool mailin_loaded:1;   /* Bit 0 */
 317                 bool mailout_avail:1;   /* Bit 1 */
 318                 bool cmd_complete:1;    /* Bit 2 */
 319                 bool ext_busreset:1;    /* Bit 3 */
 320                 unsigned char rsvd:3;   /* Bits 4-6 */
 321                 bool int_valid:1;       /* Bit 7 */
 322         } ir;
 323 };
 324 
 325 /*
 326   Define the structure of the read-only Geometry Register.
 327 */
 328 
 329 union blogic_geo_reg {
 330         unsigned char all;
 331         struct {
 332                 enum blogic_bios_diskgeometry d0_geo:2; /* Bits 0-1 */
 333                 enum blogic_bios_diskgeometry d1_geo:2; /* Bits 2-3 */
 334                 unsigned char:3;        /* Bits 4-6 */
 335                 bool ext_trans_enable:1;        /* Bit 7 */
 336         } gr;
 337 };
 338 
 339 /*
 340   Define the BusLogic SCSI Host Adapter Command Register Operation Codes.
 341 */
 342 
 343 enum blogic_opcode {
 344         BLOGIC_TEST_CMP_COMPLETE = 0x00,
 345         BLOGIC_INIT_MBOX = 0x01,
 346         BLOGIC_EXEC_MBOX_CMD = 0x02,
 347         BLOGIC_EXEC_BIOS_CMD = 0x03,
 348         BLOGIC_GET_BOARD_ID = 0x04,
 349         BLOGIC_ENABLE_OUTBOX_AVAIL_INT = 0x05,
 350         BLOGIC_SET_SELECT_TIMEOUT = 0x06,
 351         BLOGIC_SET_PREEMPT_TIME = 0x07,
 352         BLOGIC_SET_TIMEOFF_BUS = 0x08,
 353         BLOGIC_SET_TXRATE = 0x09,
 354         BLOGIC_INQ_DEV0TO7 = 0x0A,
 355         BLOGIC_INQ_CONFIG = 0x0B,
 356         BLOGIC_TGT_MODE = 0x0C,
 357         BLOGIC_INQ_SETUPINFO = 0x0D,
 358         BLOGIC_WRITE_LOCALRAM = 0x1A,
 359         BLOGIC_READ_LOCALRAM = 0x1B,
 360         BLOGIC_WRITE_BUSMASTER_FIFO = 0x1C,
 361         BLOGIC_READ_BUSMASTER_FIFO = 0x1D,
 362         BLOGIC_ECHO_CMDDATA = 0x1F,
 363         BLOGIC_ADAPTER_DIAG = 0x20,
 364         BLOGIC_SET_OPTIONS = 0x21,
 365         BLOGIC_INQ_DEV8TO15 = 0x23,
 366         BLOGIC_INQ_DEV = 0x24,
 367         BLOGIC_DISABLE_INT = 0x25,
 368         BLOGIC_INIT_EXT_MBOX = 0x81,
 369         BLOGIC_EXEC_SCS_CMD = 0x83,
 370         BLOGIC_INQ_FWVER_D3 = 0x84,
 371         BLOGIC_INQ_FWVER_LETTER = 0x85,
 372         BLOGIC_INQ_PCI_INFO = 0x86,
 373         BLOGIC_INQ_MODELNO = 0x8B,
 374         BLOGIC_INQ_SYNC_PERIOD = 0x8C,
 375         BLOGIC_INQ_EXTSETUP = 0x8D,
 376         BLOGIC_STRICT_RR = 0x8F,
 377         BLOGIC_STORE_LOCALRAM = 0x90,
 378         BLOGIC_FETCH_LOCALRAM = 0x91,
 379         BLOGIC_STORE_TO_EEPROM = 0x92,
 380         BLOGIC_LOAD_AUTOSCSICODE = 0x94,
 381         BLOGIC_MOD_IOADDR = 0x95,
 382         BLOGIC_SETCCB_FMT = 0x96,
 383         BLOGIC_WRITE_INQBUF = 0x9A,
 384         BLOGIC_READ_INQBUF = 0x9B,
 385         BLOGIC_FLASH_LOAD = 0xA7,
 386         BLOGIC_READ_SCAMDATA = 0xA8,
 387         BLOGIC_WRITE_SCAMDATA = 0xA9
 388 };
 389 
 390 /*
 391   Define the Inquire Board ID reply structure.
 392 */
 393 
 394 struct blogic_board_id {
 395         unsigned char type;             /* Byte 0 */
 396         unsigned char custom_features;  /* Byte 1 */
 397         unsigned char fw_ver_digit1;    /* Byte 2 */
 398         unsigned char fw_ver_digit2;    /* Byte 3 */
 399 };
 400 
 401 /*
 402   Define the Inquire Configuration reply structure.
 403 */
 404 
 405 struct blogic_config {
 406         unsigned char:5;        /* Byte 0 Bits 0-4 */
 407         bool dma_ch5:1;         /* Byte 0 Bit 5 */
 408         bool dma_ch6:1;         /* Byte 0 Bit 6 */
 409         bool dma_ch7:1;         /* Byte 0 Bit 7 */
 410         bool irq_ch9:1;         /* Byte 1 Bit 0 */
 411         bool irq_ch10:1;        /* Byte 1 Bit 1 */
 412         bool irq_ch11:1;        /* Byte 1 Bit 2 */
 413         bool irq_ch12:1;        /* Byte 1 Bit 3 */
 414         unsigned char:1;        /* Byte 1 Bit 4 */
 415         bool irq_ch14:1;        /* Byte 1 Bit 5 */
 416         bool irq_ch15:1;        /* Byte 1 Bit 6 */
 417         unsigned char:1;        /* Byte 1 Bit 7 */
 418         unsigned char id:4;     /* Byte 2 Bits 0-3 */
 419         unsigned char:4;        /* Byte 2 Bits 4-7 */
 420 };
 421 
 422 /*
 423   Define the Inquire Setup Information reply structure.
 424 */
 425 
 426 struct blogic_syncval {
 427         unsigned char offset:4;         /* Bits 0-3 */
 428         unsigned char tx_period:3;      /* Bits 4-6 */
 429         bool sync:1;                    /* Bit 7 */
 430 };
 431 
 432 struct blogic_setup_info {
 433         bool sync:1;                            /* Byte 0 Bit 0 */
 434         bool parity:1;                          /* Byte 0 Bit 1 */
 435         unsigned char:6;                        /* Byte 0 Bits 2-7 */
 436         unsigned char tx_rate;                  /* Byte 1 */
 437         unsigned char preempt_time;             /* Byte 2 */
 438         unsigned char timeoff_bus;              /* Byte 3 */
 439         unsigned char mbox_count;               /* Byte 4 */
 440         unsigned char mbox_addr[3];             /* Bytes 5-7 */
 441         struct blogic_syncval sync0to7[8];      /* Bytes 8-15 */
 442         unsigned char disconnect_ok0to7;        /* Byte 16 */
 443         unsigned char sig;                      /* Byte 17 */
 444         unsigned char char_d;                   /* Byte 18 */
 445         unsigned char bus_type;                 /* Byte 19 */
 446         unsigned char wide_tx_ok0to7;           /* Byte 20 */
 447         unsigned char wide_tx_active0to7;       /* Byte 21 */
 448         struct blogic_syncval sync8to15[8];     /* Bytes 22-29 */
 449         unsigned char disconnect_ok8to15;       /* Byte 30 */
 450         unsigned char:8;                        /* Byte 31 */
 451         unsigned char wide_tx_ok8to15;          /* Byte 32 */
 452         unsigned char wide_tx_active8to15;      /* Byte 33 */
 453 };
 454 
 455 /*
 456   Define the Initialize Extended Mailbox request structure.
 457 */
 458 
 459 struct blogic_extmbox_req {
 460         unsigned char mbox_count;       /* Byte 0 */
 461         u32 base_mbox_addr;             /* Bytes 1-4 */
 462 } PACKED;
 463 
 464 
 465 /*
 466   Define the Inquire PCI Host Adapter Information reply type.  The ISA
 467   Compatible I/O Port values are defined here and are also used with
 468   the Modify I/O Address command.
 469 */
 470 
 471 enum blogic_isa_ioport {
 472         BLOGIC_IO_330 = 0,
 473         BLOGIC_IO_334 = 1,
 474         BLOGIC_IO_230 = 2,
 475         BLOGIC_IO_234 = 3,
 476         BLOGIC_IO_130 = 4,
 477         BLOGIC_IO_134 = 5,
 478         BLOGIC_IO_DISABLE = 6,
 479         BLOGIC_IO_DISABLE2 = 7
 480 } PACKED;
 481 
 482 struct blogic_adapter_info {
 483         enum blogic_isa_ioport isa_port;        /* Byte 0 */
 484         unsigned char irq_ch;           /* Byte 1 */
 485         bool low_term:1;                /* Byte 2 Bit 0 */
 486         bool high_term:1;               /* Byte 2 Bit 1 */
 487         unsigned char:2;                /* Byte 2 Bits 2-3 */
 488         bool JP1:1;                     /* Byte 2 Bit 4 */
 489         bool JP2:1;                     /* Byte 2 Bit 5 */
 490         bool JP3:1;                     /* Byte 2 Bit 6 */
 491         bool genericinfo_valid:1;       /* Byte 2 Bit 7 */
 492         unsigned char:8;                /* Byte 3 */
 493 };
 494 
 495 /*
 496   Define the Inquire Extended Setup Information reply structure.
 497 */
 498 
 499 struct blogic_ext_setup {
 500         unsigned char bus_type;         /* Byte 0 */
 501         unsigned char bios_addr;        /* Byte 1 */
 502         unsigned short sg_limit;        /* Bytes 2-3 */
 503         unsigned char mbox_count;       /* Byte 4 */
 504         u32 base_mbox_addr;             /* Bytes 5-8 */
 505         struct {
 506                 unsigned char:2;        /* Byte 9 Bits 0-1 */
 507                 bool fast_on_eisa:1;    /* Byte 9 Bit 2 */
 508                 unsigned char:3;        /* Byte 9 Bits 3-5 */
 509                 bool level_int:1;       /* Byte 9 Bit 6 */
 510                 unsigned char:1;        /* Byte 9 Bit 7 */
 511         } misc;
 512         unsigned char fw_rev[3];        /* Bytes 10-12 */
 513         bool wide:1;                    /* Byte 13 Bit 0 */
 514         bool differential:1;            /* Byte 13 Bit 1 */
 515         bool scam:1;                    /* Byte 13 Bit 2 */
 516         bool ultra:1;                   /* Byte 13 Bit 3 */
 517         bool smart_term:1;              /* Byte 13 Bit 4 */
 518         unsigned char:3;                /* Byte 13 Bits 5-7 */
 519 } PACKED;
 520 
 521 /*
 522   Define the Enable Strict Round Robin Mode request type.
 523 */
 524 
 525 enum blogic_rr_req {
 526         BLOGIC_AGGRESSIVE_RR = 0,
 527         BLOGIC_STRICT_RR_MODE = 1
 528 } PACKED;
 529 
 530 
 531 /*
 532   Define the Fetch Host Adapter Local RAM request type.
 533 */
 534 
 535 #define BLOGIC_BIOS_BASE                0
 536 #define BLOGIC_AUTOSCSI_BASE            64
 537 
 538 struct blogic_fetch_localram {
 539         unsigned char offset;   /* Byte 0 */
 540         unsigned char count;    /* Byte 1 */
 541 };
 542 
 543 /*
 544   Define the Host Adapter Local RAM AutoSCSI structure.
 545 */
 546 
 547 struct blogic_autoscsi {
 548         unsigned char factory_sig[2];           /* Bytes 0-1 */
 549         unsigned char info_bytes;               /* Byte 2 */
 550         unsigned char adapter_type[6];          /* Bytes 3-8 */
 551         unsigned char:8;                        /* Byte 9 */
 552         bool floppy:1;                          /* Byte 10 Bit 0 */
 553         bool floppy_sec:1;                      /* Byte 10 Bit 1 */
 554         bool level_int:1;                       /* Byte 10 Bit 2 */
 555         unsigned char:2;                        /* Byte 10 Bits 3-4 */
 556         unsigned char systemram_bios:3;         /* Byte 10 Bits 5-7 */
 557         unsigned char dma_ch:7;                 /* Byte 11 Bits 0-6 */
 558         bool dma_autoconf:1;                    /* Byte 11 Bit 7 */
 559         unsigned char irq_ch:7;                 /* Byte 12 Bits 0-6 */
 560         bool irq_autoconf:1;                    /* Byte 12 Bit 7 */
 561         unsigned char dma_tx_rate;              /* Byte 13 */
 562         unsigned char scsi_id;                  /* Byte 14 */
 563         bool low_term:1;                        /* Byte 15 Bit 0 */
 564         bool parity:1;                          /* Byte 15 Bit 1 */
 565         bool high_term:1;                       /* Byte 15 Bit 2 */
 566         bool noisy_cable:1;                     /* Byte 15 Bit 3 */
 567         bool fast_sync_neg:1;                   /* Byte 15 Bit 4 */
 568         bool reset_enabled:1;                   /* Byte 15 Bit 5 */
 569         bool:1;                                 /* Byte 15 Bit 6 */
 570         bool active_negation:1;                 /* Byte 15 Bit 7 */
 571         unsigned char bus_on_delay;             /* Byte 16 */
 572         unsigned char bus_off_delay;            /* Byte 17 */
 573         bool bios_enabled:1;                    /* Byte 18 Bit 0 */
 574         bool int19_redir_enabled:1;             /* Byte 18 Bit 1 */
 575         bool ext_trans_enable:1;                /* Byte 18 Bit 2 */
 576         bool removable_as_fixed:1;              /* Byte 18 Bit 3 */
 577         bool:1;                                 /* Byte 18 Bit 4 */
 578         bool morethan2_drives:1;                /* Byte 18 Bit 5 */
 579         bool bios_int:1;                        /* Byte 18 Bit 6 */
 580         bool floptical:1;                       /* Byte 19 Bit 7 */
 581         unsigned short dev_enabled;             /* Bytes 19-20 */
 582         unsigned short wide_ok;                 /* Bytes 21-22 */
 583         unsigned short fast_ok;                 /* Bytes 23-24 */
 584         unsigned short sync_ok;                 /* Bytes 25-26 */
 585         unsigned short discon_ok;               /* Bytes 27-28 */
 586         unsigned short send_start_unit;         /* Bytes 29-30 */
 587         unsigned short ignore_bios_scan;        /* Bytes 31-32 */
 588         unsigned char pci_int_pin:2;            /* Byte 33 Bits 0-1 */
 589         unsigned char adapter_ioport:2;         /* Byte 33 Bits 2-3 */
 590         bool strict_rr_enabled:1;               /* Byte 33 Bit 4 */
 591         bool vesabus_33mhzplus:1;               /* Byte 33 Bit 5 */
 592         bool vesa_burst_write:1;                /* Byte 33 Bit 6 */
 593         bool vesa_burst_read:1;                 /* Byte 33 Bit 7 */
 594         unsigned short ultra_ok;                /* Bytes 34-35 */
 595         unsigned int:32;                        /* Bytes 36-39 */
 596         unsigned char:8;                        /* Byte 40 */
 597         unsigned char autoscsi_maxlun;          /* Byte 41 */
 598         bool:1;                                 /* Byte 42 Bit 0 */
 599         bool scam_dominant:1;                   /* Byte 42 Bit 1 */
 600         bool scam_enabled:1;                    /* Byte 42 Bit 2 */
 601         bool scam_lev2:1;                       /* Byte 42 Bit 3 */
 602         unsigned char:4;                        /* Byte 42 Bits 4-7 */
 603         bool int13_exten:1;                     /* Byte 43 Bit 0 */
 604         bool:1;                                 /* Byte 43 Bit 1 */
 605         bool cd_boot:1;                         /* Byte 43 Bit 2 */
 606         unsigned char:5;                        /* Byte 43 Bits 3-7 */
 607         unsigned char boot_id:4;                /* Byte 44 Bits 0-3 */
 608         unsigned char boot_ch:4;                /* Byte 44 Bits 4-7 */
 609         unsigned char force_scan_order:1;       /* Byte 45 Bit 0 */
 610         unsigned char:7;                        /* Byte 45 Bits 1-7 */
 611         unsigned short nontagged_to_alt_ok;     /* Bytes 46-47 */
 612         unsigned short reneg_sync_on_check;     /* Bytes 48-49 */
 613         unsigned char rsvd[10];                 /* Bytes 50-59 */
 614         unsigned char manuf_diag[2];            /* Bytes 60-61 */
 615         unsigned short cksum;                   /* Bytes 62-63 */
 616 } PACKED;
 617 
 618 /*
 619   Define the Host Adapter Local RAM Auto SCSI Byte 45 structure.
 620 */
 621 
 622 struct blogic_autoscsi_byte45 {
 623         unsigned char force_scan_order:1;       /* Bit 0 */
 624         unsigned char:7;        /* Bits 1-7 */
 625 };
 626 
 627 /*
 628   Define the Host Adapter Local RAM BIOS Drive Map Byte structure.
 629 */
 630 
 631 #define BLOGIC_BIOS_DRVMAP              17
 632 
 633 struct blogic_bios_drvmap {
 634         unsigned char tgt_idbit3:1;                     /* Bit 0 */
 635         unsigned char:2;                                /* Bits 1-2 */
 636         enum blogic_bios_diskgeometry diskgeom:2;       /* Bits 3-4 */
 637         unsigned char tgt_id:3;                         /* Bits 5-7 */
 638 };
 639 
 640 /*
 641   Define the Set CCB Format request type.  Extended LUN Format CCBs are
 642   necessary to support more than 8 Logical Units per Target Device.
 643 */
 644 
 645 enum blogic_setccb_fmt {
 646         BLOGIC_LEGACY_LUN_CCB = 0,
 647         BLOGIC_EXT_LUN_CCB = 1
 648 } PACKED;
 649 
 650 /*
 651   Define the Outgoing Mailbox Action Codes.
 652 */
 653 
 654 enum blogic_action {
 655         BLOGIC_OUTBOX_FREE = 0x00,
 656         BLOGIC_MBOX_START = 0x01,
 657         BLOGIC_MBOX_ABORT = 0x02
 658 } PACKED;
 659 
 660 
 661 /*
 662   Define the Incoming Mailbox Completion Codes.  The MultiMaster Firmware
 663   only uses codes 0 - 4.  The FlashPoint SCCB Manager has no mailboxes, so
 664   completion codes are stored in the CCB; it only uses codes 1, 2, 4, and 5.
 665 */
 666 
 667 enum blogic_cmplt_code {
 668         BLOGIC_INBOX_FREE = 0x00,
 669         BLOGIC_CMD_COMPLETE_GOOD = 0x01,
 670         BLOGIC_CMD_ABORT_BY_HOST = 0x02,
 671         BLOGIC_CMD_NOTFOUND = 0x03,
 672         BLOGIC_CMD_COMPLETE_ERROR = 0x04,
 673         BLOGIC_INVALID_CCB = 0x05
 674 } PACKED;
 675 
 676 /*
 677   Define the Command Control Block (CCB) Opcodes.
 678 */
 679 
 680 enum blogic_ccb_opcode {
 681         BLOGIC_INITIATOR_CCB = 0x00,
 682         BLOGIC_TGT_CCB = 0x01,
 683         BLOGIC_INITIATOR_CCB_SG = 0x02,
 684         BLOGIC_INITIATOR_CCBB_RESIDUAL = 0x03,
 685         BLOGIC_INITIATOR_CCB_SG_RESIDUAL = 0x04,
 686         BLOGIC_BDR = 0x81
 687 } PACKED;
 688 
 689 
 690 /*
 691   Define the CCB Data Direction Codes.
 692 */
 693 
 694 enum blogic_datadir {
 695         BLOGIC_UNCHECKED_TX = 0,
 696         BLOGIC_DATAIN_CHECKED = 1,
 697         BLOGIC_DATAOUT_CHECKED = 2,
 698         BLOGIC_NOTX = 3
 699 };
 700 
 701 
 702 /*
 703   Define the Host Adapter Status Codes.  The MultiMaster Firmware does not
 704   return status code 0x0C; it uses 0x12 for both overruns and underruns.
 705 */
 706 
 707 enum blogic_adapter_status {
 708         BLOGIC_CMD_CMPLT_NORMAL = 0x00,
 709         BLOGIC_LINK_CMD_CMPLT = 0x0A,
 710         BLOGIC_LINK_CMD_CMPLT_FLAG = 0x0B,
 711         BLOGIC_DATA_UNDERRUN = 0x0C,
 712         BLOGIC_SELECT_TIMEOUT = 0x11,
 713         BLOGIC_DATA_OVERRUN = 0x12,
 714         BLOGIC_NOEXPECT_BUSFREE = 0x13,
 715         BLOGIC_INVALID_BUSPHASE = 0x14,
 716         BLOGIC_INVALID_OUTBOX_CODE = 0x15,
 717         BLOGIC_INVALID_CMD_CODE = 0x16,
 718         BLOGIC_LINKCCB_BADLUN = 0x17,
 719         BLOGIC_BAD_CMD_PARAM = 0x1A,
 720         BLOGIC_AUTOREQSENSE_FAIL = 0x1B,
 721         BLOGIC_TAGQUEUE_REJECT = 0x1C,
 722         BLOGIC_BAD_MSG_RCVD = 0x1D,
 723         BLOGIC_HW_FAIL = 0x20,
 724         BLOGIC_NORESPONSE_TO_ATN = 0x21,
 725         BLOGIC_HW_RESET = 0x22,
 726         BLOGIC_RST_FROM_OTHERDEV = 0x23,
 727         BLOGIC_BAD_RECONNECT = 0x24,
 728         BLOGIC_HW_BDR = 0x25,
 729         BLOGIC_ABRT_QUEUE = 0x26,
 730         BLOGIC_ADAPTER_SW_ERROR = 0x27,
 731         BLOGIC_HW_TIMEOUT = 0x30,
 732         BLOGIC_PARITY_ERR = 0x34
 733 } PACKED;
 734 
 735 
 736 /*
 737   Define the SCSI Target Device Status Codes.
 738 */
 739 
 740 enum blogic_tgt_status {
 741         BLOGIC_OP_GOOD = 0x00,
 742         BLOGIC_CHECKCONDITION = 0x02,
 743         BLOGIC_DEVBUSY = 0x08
 744 } PACKED;
 745 
 746 /*
 747   Define the Queue Tag Codes.
 748 */
 749 
 750 enum blogic_queuetag {
 751         BLOGIC_SIMPLETAG = 0,
 752         BLOGIC_HEADTAG = 1,
 753         BLOGIC_ORDEREDTAG = 2,
 754         BLOGIC_RSVDTAG = 3
 755 };
 756 
 757 /*
 758   Define the SCSI Command Descriptor Block (CDB).
 759 */
 760 
 761 #define BLOGIC_CDB_MAXLEN                       12
 762 
 763 
 764 /*
 765   Define the Scatter/Gather Segment structure required by the MultiMaster
 766   Firmware Interface and the FlashPoint SCCB Manager.
 767 */
 768 
 769 struct blogic_sg_seg {
 770         u32 segbytes;   /* Bytes 0-3 */
 771         u32 segdata;    /* Bytes 4-7 */
 772 };
 773 
 774 /*
 775   Define the Driver CCB Status Codes.
 776 */
 777 
 778 enum blogic_ccb_status {
 779         BLOGIC_CCB_FREE = 0,
 780         BLOGIC_CCB_ACTIVE = 1,
 781         BLOGIC_CCB_COMPLETE = 2,
 782         BLOGIC_CCB_RESET = 3
 783 } PACKED;
 784 
 785 
 786 /*
 787   Define the 32 Bit Mode Command Control Block (CCB) structure.  The first 40
 788   bytes are defined by and common to both the MultiMaster Firmware and the
 789   FlashPoint SCCB Manager.  The next 60 bytes are defined by the FlashPoint
 790   SCCB Manager.  The remaining components are defined by the Linux BusLogic
 791   Driver.  Extended LUN Format CCBs differ from Legacy LUN Format 32 Bit Mode
 792   CCBs only in having the TagEnable and QueueTag fields moved from byte 17 to
 793   byte 1, and the Logical Unit field in byte 17 expanded to 6 bits.  In theory,
 794   Extended LUN Format CCBs can support up to 64 Logical Units, but in practice
 795   many devices will respond improperly to Logical Units between 32 and 63, and
 796   the SCSI-2 specification defines Bit 5 as LUNTAR.  Extended LUN Format CCBs
 797   are used by recent versions of the MultiMaster Firmware, as well as by the
 798   FlashPoint SCCB Manager; the FlashPoint SCCB Manager only supports 32 Logical
 799   Units.  Since 64 Logical Units are unlikely to be needed in practice, and
 800   since they are problematic for the above reasons, and since limiting them to
 801   5 bits simplifies the CCB structure definition, this driver only supports
 802   32 Logical Units per Target Device.
 803 */
 804 
 805 struct blogic_ccb {
 806         /*
 807            MultiMaster Firmware and FlashPoint SCCB Manager Common Portion.
 808          */
 809         enum blogic_ccb_opcode opcode;                  /* Byte 0 */
 810         unsigned char:3;                                /* Byte 1 Bits 0-2 */
 811         enum blogic_datadir datadir:2;                  /* Byte 1 Bits 3-4 */
 812         bool tag_enable:1;                              /* Byte 1 Bit 5 */
 813         enum blogic_queuetag queuetag:2;                /* Byte 1 Bits 6-7 */
 814         unsigned char cdblen;                           /* Byte 2 */
 815         unsigned char sense_datalen;                    /* Byte 3 */
 816         u32 datalen;                                    /* Bytes 4-7 */
 817         void *data;                                     /* Bytes 8-11 */
 818         unsigned char:8;                                /* Byte 12 */
 819         unsigned char:8;                                /* Byte 13 */
 820         enum blogic_adapter_status adapter_status;      /* Byte 14 */
 821         enum blogic_tgt_status tgt_status;              /* Byte 15 */
 822         unsigned char tgt_id;                           /* Byte 16 */
 823         unsigned char lun:5;                            /* Byte 17 Bits 0-4 */
 824         bool legacytag_enable:1;                        /* Byte 17 Bit 5 */
 825         enum blogic_queuetag legacy_tag:2;              /* Byte 17 Bits 6-7 */
 826         unsigned char cdb[BLOGIC_CDB_MAXLEN];           /* Bytes 18-29 */
 827         unsigned char:8;                                /* Byte 30 */
 828         unsigned char:8;                                /* Byte 31 */
 829         u32 rsvd_int;                                   /* Bytes 32-35 */
 830         u32 sensedata;                                  /* Bytes 36-39 */
 831         /*
 832            FlashPoint SCCB Manager Defined Portion.
 833          */
 834         void (*callback) (struct blogic_ccb *);         /* Bytes 40-43 */
 835         u32 base_addr;                                  /* Bytes 44-47 */
 836         enum blogic_cmplt_code comp_code;               /* Byte 48 */
 837 #ifdef CONFIG_SCSI_FLASHPOINT
 838         unsigned char:8;                                /* Byte 49 */
 839         u16 os_flags;                                   /* Bytes 50-51 */
 840         unsigned char private[24];                      /* Bytes 52-99 */
 841         void *rsvd1;
 842         void *rsvd2;
 843         unsigned char private2[16];
 844 #endif
 845         /*
 846            BusLogic Linux Driver Defined Portion.
 847          */
 848         dma_addr_t allocgrp_head;
 849         unsigned int allocgrp_size;
 850         u32 dma_handle;
 851         enum blogic_ccb_status status;
 852         unsigned long serial;
 853         struct scsi_cmnd *command;
 854         struct blogic_adapter *adapter;
 855         struct blogic_ccb *next;
 856         struct blogic_ccb *next_all;
 857         struct blogic_sg_seg sglist[BLOGIC_SG_LIMIT];
 858 };
 859 
 860 /*
 861   Define the 32 Bit Mode Outgoing Mailbox structure.
 862 */
 863 
 864 struct blogic_outbox {
 865         u32 ccb;                        /* Bytes 0-3 */
 866         u32:24;                         /* Bytes 4-6 */
 867         enum blogic_action action;      /* Byte 7 */
 868 };
 869 
 870 /*
 871   Define the 32 Bit Mode Incoming Mailbox structure.
 872 */
 873 
 874 struct blogic_inbox {
 875         u32 ccb;                                        /* Bytes 0-3 */
 876         enum blogic_adapter_status adapter_status;      /* Byte 4 */
 877         enum blogic_tgt_status tgt_status;              /* Byte 5 */
 878         unsigned char:8;                                /* Byte 6 */
 879         enum blogic_cmplt_code comp_code;               /* Byte 7 */
 880 };
 881 
 882 
 883 /*
 884   Define the BusLogic Driver Options structure.
 885 */
 886 
 887 struct blogic_drvr_options {
 888         unsigned short tagq_ok;
 889         unsigned short tagq_ok_mask;
 890         unsigned short bus_settle_time;
 891         unsigned short stop_tgt_inquiry;
 892         unsigned char common_qdepth;
 893         unsigned char qdepth[BLOGIC_MAXDEV];
 894 };
 895 
 896 /*
 897   Define the Host Adapter Target Flags structure.
 898 */
 899 
 900 struct blogic_tgt_flags {
 901         bool tgt_exists:1;
 902         bool tagq_ok:1;
 903         bool wide_ok:1;
 904         bool tagq_active:1;
 905         bool wide_active:1;
 906         bool cmd_good:1;
 907         bool tgt_info_in:1;
 908 };
 909 
 910 /*
 911   Define the Host Adapter Target Statistics structure.
 912 */
 913 
 914 #define BLOGIC_SZ_BUCKETS                       10
 915 
 916 struct blogic_tgt_stats {
 917         unsigned int cmds_tried;
 918         unsigned int cmds_complete;
 919         unsigned int read_cmds;
 920         unsigned int write_cmds;
 921         struct blogic_byte_count bytesread;
 922         struct blogic_byte_count byteswritten;
 923         unsigned int read_sz_buckets[BLOGIC_SZ_BUCKETS];
 924         unsigned int write_sz_buckets[BLOGIC_SZ_BUCKETS];
 925         unsigned short aborts_request;
 926         unsigned short aborts_tried;
 927         unsigned short aborts_done;
 928         unsigned short bdr_request;
 929         unsigned short bdr_tried;
 930         unsigned short bdr_done;
 931         unsigned short adapter_reset_req;
 932         unsigned short adapter_reset_attempt;
 933         unsigned short adapter_reset_done;
 934 };
 935 
 936 /*
 937   Define the FlashPoint Card Handle data type.
 938 */
 939 
 940 #define FPOINT_BADCARD_HANDLE           0xFFFFFFFFL
 941 
 942 
 943 /*
 944   Define the FlashPoint Information structure.  This structure is defined
 945   by the FlashPoint SCCB Manager.
 946 */
 947 
 948 struct fpoint_info {
 949         u32 base_addr;                          /* Bytes 0-3 */
 950         bool present;                           /* Byte 4 */
 951         unsigned char irq_ch;                   /* Byte 5 */
 952         unsigned char scsi_id;                  /* Byte 6 */
 953         unsigned char scsi_lun;                 /* Byte 7 */
 954         u16 fw_rev;                             /* Bytes 8-9 */
 955         u16 sync_ok;                            /* Bytes 10-11 */
 956         u16 fast_ok;                            /* Bytes 12-13 */
 957         u16 ultra_ok;                           /* Bytes 14-15 */
 958         u16 discon_ok;                          /* Bytes 16-17 */
 959         u16 wide_ok;                            /* Bytes 18-19 */
 960         bool parity:1;                          /* Byte 20 Bit 0 */
 961         bool wide:1;                            /* Byte 20 Bit 1 */
 962         bool softreset:1;                       /* Byte 20 Bit 2 */
 963         bool ext_trans_enable:1;                /* Byte 20 Bit 3 */
 964         bool low_term:1;                        /* Byte 20 Bit 4 */
 965         bool high_term:1;                       /* Byte 20 Bit 5 */
 966         bool report_underrun:1;                 /* Byte 20 Bit 6 */
 967         bool scam_enabled:1;                    /* Byte 20 Bit 7 */
 968         bool scam_lev2:1;                       /* Byte 21 Bit 0 */
 969         unsigned char:7;                        /* Byte 21 Bits 1-7 */
 970         unsigned char family;                   /* Byte 22 */
 971         unsigned char bus_type;                 /* Byte 23 */
 972         unsigned char model[3];                 /* Bytes 24-26 */
 973         unsigned char relative_cardnum;         /* Byte 27 */
 974         unsigned char rsvd[4];                  /* Bytes 28-31 */
 975         u32 os_rsvd;                            /* Bytes 32-35 */
 976         unsigned char translation_info[4];      /* Bytes 36-39 */
 977         u32 rsvd2[5];                           /* Bytes 40-59 */
 978         u32 sec_range;                          /* Bytes 60-63 */
 979 };
 980 
 981 /*
 982   Define the BusLogic Driver Host Adapter structure.
 983 */
 984 
 985 struct blogic_adapter {
 986         struct Scsi_Host *scsi_host;
 987         struct pci_dev *pci_device;
 988         enum blogic_adapter_type adapter_type;
 989         enum blogic_adapter_bus_type adapter_bus_type;
 990         unsigned long io_addr;
 991         unsigned long pci_addr;
 992         unsigned short addr_count;
 993         unsigned char host_no;
 994         unsigned char model[9];
 995         unsigned char fw_ver[6];
 996         unsigned char full_model[18];
 997         unsigned char bus;
 998         unsigned char dev;
 999         unsigned char irq_ch;
1000         unsigned char dma_ch;
1001         unsigned char scsi_id;
1002         bool irq_acquired:1;
1003         bool dma_chan_acquired:1;
1004         bool ext_trans_enable:1;
1005         bool parity:1;
1006         bool reset_enabled:1;
1007         bool level_int:1;
1008         bool wide:1;
1009         bool differential:1;
1010         bool scam:1;
1011         bool ultra:1;
1012         bool ext_lun:1;
1013         bool terminfo_valid:1;
1014         bool low_term:1;
1015         bool high_term:1;
1016         bool need_bouncebuf:1;
1017         bool strict_rr:1;
1018         bool scam_enabled:1;
1019         bool scam_lev2:1;
1020         bool adapter_initd:1;
1021         bool adapter_extreset:1;
1022         bool adapter_intern_err:1;
1023         bool processing_ccbs;
1024         volatile bool adapter_cmd_complete;
1025         unsigned short adapter_sglimit;
1026         unsigned short drvr_sglimit;
1027         unsigned short maxdev;
1028         unsigned short maxlun;
1029         unsigned short mbox_count;
1030         unsigned short initccbs;
1031         unsigned short inc_ccbs;
1032         unsigned short alloc_ccbs;
1033         unsigned short drvr_qdepth;
1034         unsigned short adapter_qdepth;
1035         unsigned short untag_qdepth;
1036         unsigned short common_qdepth;
1037         unsigned short bus_settle_time;
1038         unsigned short sync_ok;
1039         unsigned short fast_ok;
1040         unsigned short ultra_ok;
1041         unsigned short wide_ok;
1042         unsigned short discon_ok;
1043         unsigned short tagq_ok;
1044         unsigned short ext_resets;
1045         unsigned short adapter_intern_errors;
1046         unsigned short tgt_count;
1047         unsigned short msgbuflen;
1048         u32 bios_addr;
1049         struct blogic_drvr_options *drvr_opts;
1050         struct fpoint_info fpinfo;
1051         void *cardhandle;
1052         struct list_head host_list;
1053         struct blogic_ccb *all_ccbs;
1054         struct blogic_ccb *free_ccbs;
1055         struct blogic_ccb *firstccb;
1056         struct blogic_ccb *lastccb;
1057         struct blogic_ccb *bdr_pend[BLOGIC_MAXDEV];
1058         struct blogic_tgt_flags tgt_flags[BLOGIC_MAXDEV];
1059         unsigned char qdepth[BLOGIC_MAXDEV];
1060         unsigned char sync_period[BLOGIC_MAXDEV];
1061         unsigned char sync_offset[BLOGIC_MAXDEV];
1062         unsigned char active_cmds[BLOGIC_MAXDEV];
1063         unsigned int cmds_since_rst[BLOGIC_MAXDEV];
1064         unsigned long last_seqpoint[BLOGIC_MAXDEV];
1065         unsigned long last_resettried[BLOGIC_MAXDEV];
1066         unsigned long last_resetdone[BLOGIC_MAXDEV];
1067         struct blogic_outbox *first_outbox;
1068         struct blogic_outbox *last_outbox;
1069         struct blogic_outbox *next_outbox;
1070         struct blogic_inbox *first_inbox;
1071         struct blogic_inbox *last_inbox;
1072         struct blogic_inbox *next_inbox;
1073         struct blogic_tgt_stats tgt_stats[BLOGIC_MAXDEV];
1074         unsigned char *mbox_space;
1075         dma_addr_t mbox_space_handle;
1076         unsigned int mbox_sz;
1077         unsigned long ccb_offset;
1078         char msgbuf[BLOGIC_MSGBUF_SIZE];
1079 };
1080 
1081 /*
1082   Define a structure for the BIOS Disk Parameters.
1083 */
1084 
1085 struct bios_diskparam {
1086         int heads;
1087         int sectors;
1088         int cylinders;
1089 };
1090 
1091 /*
1092   Define a structure for the SCSI Inquiry command results.
1093 */
1094 
1095 struct scsi_inquiry {
1096         unsigned char devtype:5;        /* Byte 0 Bits 0-4 */
1097         unsigned char dev_qual:3;       /* Byte 0 Bits 5-7 */
1098         unsigned char dev_modifier:7;   /* Byte 1 Bits 0-6 */
1099         bool rmb:1;                     /* Byte 1 Bit 7 */
1100         unsigned char ansi_ver:3;       /* Byte 2 Bits 0-2 */
1101         unsigned char ecma_ver:3;       /* Byte 2 Bits 3-5 */
1102         unsigned char iso_ver:2;        /* Byte 2 Bits 6-7 */
1103         unsigned char resp_fmt:4;       /* Byte 3 Bits 0-3 */
1104         unsigned char:2;                /* Byte 3 Bits 4-5 */
1105         bool TrmIOP:1;                  /* Byte 3 Bit 6 */
1106         bool AENC:1;                    /* Byte 3 Bit 7 */
1107         unsigned char addl_len;         /* Byte 4 */
1108         unsigned char:8;                /* Byte 5 */
1109         unsigned char:8;                /* Byte 6 */
1110         bool SftRe:1;                   /* Byte 7 Bit 0 */
1111         bool CmdQue:1;                  /* Byte 7 Bit 1 */
1112         bool:1;                         /* Byte 7 Bit 2 */
1113         bool linked:1;                  /* Byte 7 Bit 3 */
1114         bool sync:1;                    /* Byte 7 Bit 4 */
1115         bool WBus16:1;                  /* Byte 7 Bit 5 */
1116         bool WBus32:1;                  /* Byte 7 Bit 6 */
1117         bool RelAdr:1;                  /* Byte 7 Bit 7 */
1118         unsigned char vendor[8];        /* Bytes 8-15 */
1119         unsigned char product[16];      /* Bytes 16-31 */
1120         unsigned char product_rev[4];   /* Bytes 32-35 */
1121 };
1122 
1123 
1124 /*
1125   Define functions to provide an abstraction for reading and writing the
1126   Host Adapter I/O Registers.
1127 */
1128 
1129 static inline void blogic_busreset(struct blogic_adapter *adapter)
1130 {
1131         union blogic_cntrl_reg cr;
1132         cr.all = 0;
1133         cr.cr.bus_reset = true;
1134         outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG);
1135 }
1136 
1137 static inline void blogic_intreset(struct blogic_adapter *adapter)
1138 {
1139         union blogic_cntrl_reg cr;
1140         cr.all = 0;
1141         cr.cr.int_reset = true;
1142         outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG);
1143 }
1144 
1145 static inline void blogic_softreset(struct blogic_adapter *adapter)
1146 {
1147         union blogic_cntrl_reg cr;
1148         cr.all = 0;
1149         cr.cr.soft_reset = true;
1150         outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG);
1151 }
1152 
1153 static inline void blogic_hardreset(struct blogic_adapter *adapter)
1154 {
1155         union blogic_cntrl_reg cr;
1156         cr.all = 0;
1157         cr.cr.hard_reset = true;
1158         outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG);
1159 }
1160 
1161 static inline unsigned char blogic_rdstatus(struct blogic_adapter *adapter)
1162 {
1163         return inb(adapter->io_addr + BLOGIC_STATUS_REG);
1164 }
1165 
1166 static inline void blogic_setcmdparam(struct blogic_adapter *adapter,
1167                                         unsigned char value)
1168 {
1169         outb(value, adapter->io_addr + BLOGIC_CMD_PARM_REG);
1170 }
1171 
1172 static inline unsigned char blogic_rddatain(struct blogic_adapter *adapter)
1173 {
1174         return inb(adapter->io_addr + BLOGIC_DATAIN_REG);
1175 }
1176 
1177 static inline unsigned char blogic_rdint(struct blogic_adapter *adapter)
1178 {
1179         return inb(adapter->io_addr + BLOGIC_INT_REG);
1180 }
1181 
1182 static inline unsigned char blogic_rdgeom(struct blogic_adapter *adapter)
1183 {
1184         return inb(adapter->io_addr + BLOGIC_GEOMETRY_REG);
1185 }
1186 
1187 /*
1188   blogic_execmbox issues an Execute Mailbox Command, which
1189   notifies the Host Adapter that an entry has been made in an Outgoing
1190   Mailbox.
1191 */
1192 
1193 static inline void blogic_execmbox(struct blogic_adapter *adapter)
1194 {
1195         blogic_setcmdparam(adapter, BLOGIC_EXEC_MBOX_CMD);
1196 }
1197 
1198 /*
1199   blogic_delay waits for Seconds to elapse.
1200 */
1201 
1202 static inline void blogic_delay(int seconds)
1203 {
1204         mdelay(1000 * seconds);
1205 }
1206 
1207 /*
1208   virt_to_32bit_virt maps between Kernel Virtual Addresses and
1209   32 bit Kernel Virtual Addresses.  This avoids compilation warnings
1210   on 64 bit architectures.
1211 */
1212 
1213 static inline u32 virt_to_32bit_virt(void *virt_addr)
1214 {
1215         return (u32) (unsigned long) virt_addr;
1216 }
1217 
1218 /*
1219   blogic_inc_count increments counter by 1, stopping at
1220   65535 rather than wrapping around to 0.
1221 */
1222 
1223 static inline void blogic_inc_count(unsigned short *count)
1224 {
1225         if (*count < 65535)
1226                 (*count)++;
1227 }
1228 
1229 /*
1230   blogic_addcount increments Byte Counter by Amount.
1231 */
1232 
1233 static inline void blogic_addcount(struct blogic_byte_count *bytecount,
1234                                         unsigned int amount)
1235 {
1236         bytecount->units += amount;
1237         if (bytecount->units > 999999999) {
1238                 bytecount->units -= 1000000000;
1239                 bytecount->billions++;
1240         }
1241 }
1242 
1243 /*
1244   blogic_incszbucket increments the Bucket for Amount.
1245 */
1246 
1247 static inline void blogic_incszbucket(unsigned int *cmdsz_buckets,
1248                                         unsigned int amount)
1249 {
1250         int index = 0;
1251         if (amount < 8 * 1024) {
1252                 if (amount < 2 * 1024)
1253                         index = (amount < 1 * 1024 ? 0 : 1);
1254                 else
1255                         index = (amount < 4 * 1024 ? 2 : 3);
1256         } else if (amount < 128 * 1024) {
1257                 if (amount < 32 * 1024)
1258                         index = (amount < 16 * 1024 ? 4 : 5);
1259                 else
1260                         index = (amount < 64 * 1024 ? 6 : 7);
1261         } else
1262                 index = (amount < 256 * 1024 ? 8 : 9);
1263         cmdsz_buckets[index]++;
1264 }
1265 
1266 /*
1267   Define the version number of the FlashPoint Firmware (SCCB Manager).
1268 */
1269 
1270 #define FLASHPOINT_FW_VER               "5.02"
1271 
1272 /*
1273   Define the possible return values from FlashPoint_HandleInterrupt.
1274 */
1275 
1276 #define FPOINT_NORMAL_INT               0x00
1277 #define FPOINT_INTERN_ERR               0xFE
1278 #define FPOINT_EXT_RESET                0xFF
1279 
1280 /*
1281   Define prototypes for the forward referenced BusLogic Driver
1282   Internal Functions.
1283 */
1284 
1285 static const char *blogic_drvr_info(struct Scsi_Host *);
1286 static int blogic_qcmd(struct Scsi_Host *h, struct scsi_cmnd *);
1287 static int blogic_diskparam(struct scsi_device *, struct block_device *, sector_t, int *);
1288 static int blogic_slaveconfig(struct scsi_device *);
1289 static void blogic_qcompleted_ccb(struct blogic_ccb *);
1290 static irqreturn_t blogic_inthandler(int, void *);
1291 static int blogic_resetadapter(struct blogic_adapter *, bool hard_reset);
1292 static void blogic_msg(enum blogic_msglevel, char *, struct blogic_adapter *, ...);
1293 static int __init blogic_setup(char *);
1294 
1295 #endif                          /* _BUSLOGIC_H */