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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 <[email protected]>
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 enum scsi_qc_status blogic_qcmd(struct Scsi_Host *h,
1276 struct scsi_cmnd *command);
1277static int blogic_diskparam(struct scsi_device *, struct gendisk *, sector_t, int *);
1278static int blogic_sdev_configure(struct scsi_device *,
1279 struct queue_limits *lim);
1280static void blogic_qcompleted_ccb(struct blogic_ccb *);
1281static irqreturn_t blogic_inthandler(int, void *);
1282static int blogic_resetadapter(struct blogic_adapter *, bool hard_reset);
1283static void blogic_msg(enum blogic_msglevel, char *, struct blogic_adapter *, ...);
1284static int __init blogic_setup(char *);
1285
1286#endif /* _BUSLOGIC_H */