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
 106enum 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
 114static 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
 142enum 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
 150static 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
 177enum 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
 186static char *blogic_adapter_busnames[] = { "Unknown", "ISA", "EISA", "PCI", "VESA", "MCA" };
 187
 188static 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
 201enum 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
 213struct 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
 223struct 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
 238struct 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
 258struct 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
 280union 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
 295union 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
 313union 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
 329union 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
 343enum 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
 394struct 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
 405struct 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
 426struct 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
 432struct 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
 459struct 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
 471enum 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
 482struct 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
 499struct 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
 525enum 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
 538struct 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
 547struct 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
 622struct 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
 633struct 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
 645enum 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
 654enum 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
 667enum 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
 680enum 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
 694enum 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
 707enum 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
 740enum 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
 750enum 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
 769struct 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
 778enum 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
 805struct 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
 864struct 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
 874struct 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
 887struct 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
 900struct 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
 916struct 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
 948struct 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
 985struct 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
1085struct 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
1095struct 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
1129static 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
1137static 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
1145static 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
1153static 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
1161static inline unsigned char blogic_rdstatus(struct blogic_adapter *adapter)
1162{
1163	return inb(adapter->io_addr + BLOGIC_STATUS_REG);
1164}
1165
1166static 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
1172static inline unsigned char blogic_rddatain(struct blogic_adapter *adapter)
1173{
1174	return inb(adapter->io_addr + BLOGIC_DATAIN_REG);
1175}
1176
1177static inline unsigned char blogic_rdint(struct blogic_adapter *adapter)
1178{
1179	return inb(adapter->io_addr + BLOGIC_INT_REG);
1180}
1181
1182static 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
1193static 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
1202static 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
1213static 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
1223static 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
1233static 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
1247static 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
1285static const char *blogic_drvr_info(struct Scsi_Host *);
1286static int blogic_qcmd(struct Scsi_Host *h, struct scsi_cmnd *);
1287static int blogic_diskparam(struct scsi_device *, struct block_device *, sector_t, int *);
1288static int blogic_slaveconfig(struct scsi_device *);
1289static void blogic_qcompleted_ccb(struct blogic_ccb *);
1290static irqreturn_t blogic_inthandler(int, void *);
1291static int blogic_resetadapter(struct blogic_adapter *, bool hard_reset);
1292static void blogic_msg(enum blogic_msglevel, char *, struct blogic_adapter *, ...);
1293static int __init blogic_setup(char *);
1294
1295#endif				/* _BUSLOGIC_H */