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