1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3
4 Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters
5
6 Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>
7
8
9 The author respectfully requests that any modifications to this software be
10 sent directly to him for evaluation and testing.
11
12 Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose
13 advice has been invaluable, to David Gentzel, for writing the original Linux
14 BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site.
15
16 Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB
17 Manager available as freely redistributable source code.
18
19 */
20
21 #ifndef _BUSLOGIC_H
22 #define _BUSLOGIC_H
23
24
25 #ifndef PACKED
26 #define PACKED __attribute__((packed))
27 #endif
28
29 /*
30 Define the maximum number of BusLogic Host Adapters supported by this driver.
31 */
32
33 #define BLOGIC_MAX_ADAPTERS 16
34
35
36 /*
37 Define the maximum number of Target Devices supported by this driver.
38 */
39
40 #define BLOGIC_MAXDEV 16
41
42
43 /*
44 Define the maximum number of Scatter/Gather Segments used by this driver.
45 For optimal performance, it is important that this limit be at least as
46 large as the largest single request generated by the I/O Subsystem.
47 */
48
49 #define BLOGIC_SG_LIMIT 128
50
51
52 /*
53 Define the maximum, maximum automatic, minimum automatic, and default Queue
54 Depth to allow for Target Devices depending on whether or not they support
55 Tagged Queuing and whether or not ISA Bounce Buffers are required.
56 */
57
58 #define BLOGIC_MAX_TAG_DEPTH 64
59 #define BLOGIC_MAX_AUTO_TAG_DEPTH 28
60 #define BLOGIC_MIN_AUTO_TAG_DEPTH 7
61 #define BLOGIC_TAG_DEPTH_BB 3
62 #define BLOGIC_UNTAG_DEPTH 3
63 #define BLOGIC_UNTAG_DEPTH_BB 2
64
65
66 /*
67 Define the default amount of time in seconds to wait between a Host Adapter
68 Hard Reset which initiates a SCSI Bus Reset and issuing any SCSI commands.
69 Some SCSI devices get confused if they receive SCSI commands too soon after
70 a SCSI Bus Reset.
71 */
72
73 #define BLOGIC_BUS_SETTLE_TIME 2
74
75
76 /*
77 Define the maximum number of Mailboxes that should be used for MultiMaster
78 Host Adapters. This number is chosen to be larger than the maximum Host
79 Adapter Queue Depth and small enough so that the Host Adapter structure
80 does not cross an allocation block size boundary.
81 */
82
83 #define BLOGIC_MAX_MAILBOX 211
84
85
86 /*
87 Define the number of CCBs that should be allocated as a group to optimize
88 Kernel memory allocation.
89 */
90
91 #define BLOGIC_CCB_GRP_ALLOCSIZE 7
92
93
94 /*
95 Define the Host Adapter Line and Message Buffer Sizes.
96 */
97
98 #define BLOGIC_LINEBUF_SIZE 100
99 #define BLOGIC_MSGBUF_SIZE 9700
100
101
102 /*
103 Define the Driver Message Levels.
104 */
105
106 enum blogic_msglevel {
107 BLOGIC_ANNOUNCE_LEVEL = 0,
108 BLOGIC_INFO_LEVEL = 1,
109 BLOGIC_NOTICE_LEVEL = 2,
110 BLOGIC_WARN_LEVEL = 3,
111 BLOGIC_ERR_LEVEL = 4
112 };
113
114 static char *blogic_msglevelmap[] = { KERN_NOTICE, KERN_NOTICE, KERN_NOTICE, KERN_WARNING, KERN_ERR };
115
116
117 /*
118 Define Driver Message macros.
119 */
120
121 #define blogic_announce(format, args...) \
122 blogic_msg(BLOGIC_ANNOUNCE_LEVEL, format, ##args)
123
124 #define blogic_info(format, args...) \
125 blogic_msg(BLOGIC_INFO_LEVEL, format, ##args)
126
127 #define blogic_notice(format, args...) \
128 blogic_msg(BLOGIC_NOTICE_LEVEL, format, ##args)
129
130 #define blogic_warn(format, args...) \
131 blogic_msg(BLOGIC_WARN_LEVEL, format, ##args)
132
133 #define blogic_err(format, args...) \
134 blogic_msg(BLOGIC_ERR_LEVEL, format, ##args)
135
136
137 /*
138 Define the types of BusLogic Host Adapters that are supported and the number
139 of I/O Addresses required by each type.
140 */
141
142 enum blogic_adapter_type {
143 BLOGIC_MULTIMASTER = 1,
144 BLOGIC_FLASHPOINT = 2
145 } PACKED;
146
147 #define BLOGIC_MULTIMASTER_ADDR_COUNT 4
148 #define BLOGIC_FLASHPOINT_ADDR_COUNT 256
149
150 static int blogic_adapter_addr_count[3] = { 0, BLOGIC_MULTIMASTER_ADDR_COUNT, BLOGIC_FLASHPOINT_ADDR_COUNT };
151
152
153 /*
154 Define macros for testing the Host Adapter Type.
155 */
156
157 #ifdef CONFIG_SCSI_FLASHPOINT
158
159 #define blogic_multimaster_type(adapter) \
160 (adapter->adapter_type == BLOGIC_MULTIMASTER)
161
162 #define blogic_flashpoint_type(adapter) \
163 (adapter->adapter_type == BLOGIC_FLASHPOINT)
164
165 #else
166
167 #define blogic_multimaster_type(adapter) (true)
168 #define blogic_flashpoint_type(adapter) (false)
169
170 #endif
171
172
173 /*
174 Define the possible Host Adapter Bus Types.
175 */
176
177 enum blogic_adapter_bus_type {
178 BLOGIC_UNKNOWN_BUS = 0,
179 BLOGIC_ISA_BUS = 1,
180 BLOGIC_EISA_BUS = 2,
181 BLOGIC_PCI_BUS = 3,
182 BLOGIC_VESA_BUS = 4,
183 BLOGIC_MCA_BUS = 5
184 } PACKED;
185
186 static char *blogic_adapter_busnames[] = { "Unknown", "ISA", "EISA", "PCI", "VESA", "MCA" };
187
188 static enum blogic_adapter_bus_type blogic_adater_bus_types[] = {
189 BLOGIC_VESA_BUS, /* BT-4xx */
190 BLOGIC_ISA_BUS, /* BT-5xx */
191 BLOGIC_MCA_BUS, /* BT-6xx */
192 BLOGIC_EISA_BUS, /* BT-7xx */
193 BLOGIC_UNKNOWN_BUS, /* BT-8xx */
194 BLOGIC_PCI_BUS /* BT-9xx */
195 };
196
197 /*
198 Define the possible Host Adapter BIOS Disk Geometry Translations.
199 */
200
201 enum blogic_bios_diskgeometry {
202 BLOGIC_BIOS_NODISK = 0,
203 BLOGIC_BIOS_DISK64x32 = 1,
204 BLOGIC_BIOS_DISK128x32 = 2,
205 BLOGIC_BIOS_DISK255x63 = 3
206 } PACKED;
207
208
209 /*
210 Define a 10^18 Statistics Byte Counter data type.
211 */
212
213 struct blogic_byte_count {
214 unsigned int units;
215 unsigned int billions;
216 };
217
218
219 /*
220 Define the structure for I/O Address and Bus Probing Information.
221 */
222
223 struct blogic_probeinfo {
224 enum blogic_adapter_type adapter_type;
225 enum blogic_adapter_bus_type adapter_bus_type;
226 unsigned long io_addr;
227 unsigned long pci_addr;
228 struct pci_dev *pci_device;
229 unsigned char bus;
230 unsigned char dev;
231 unsigned char irq_ch;
232 };
233
234 /*
235 Define the Probe Options.
236 */
237
238 struct blogic_probe_options {
239 bool noprobe:1; /* Bit 0 */
240 bool noprobe_isa:1; /* Bit 1 */
241 bool noprobe_pci:1; /* Bit 2 */
242 bool nosort_pci:1; /* Bit 3 */
243 bool multimaster_first:1; /* Bit 4 */
244 bool flashpoint_first:1; /* Bit 5 */
245 bool limited_isa:1; /* Bit 6 */
246 bool probe330:1; /* Bit 7 */
247 bool probe334:1; /* Bit 8 */
248 bool probe230:1; /* Bit 9 */
249 bool probe234:1; /* Bit 10 */
250 bool probe130:1; /* Bit 11 */
251 bool probe134:1; /* Bit 12 */
252 };
253
254 /*
255 Define the Global Options.
256 */
257
258 struct blogic_global_options {
259 bool trace_probe:1; /* Bit 0 */
260 bool trace_hw_reset:1; /* Bit 1 */
261 bool trace_config:1; /* Bit 2 */
262 bool trace_err:1; /* Bit 3 */
263 };
264
265 /*
266 Define the BusLogic SCSI Host Adapter I/O Register Offsets.
267 */
268
269 #define BLOGIC_CNTRL_REG 0 /* WO register */
270 #define BLOGIC_STATUS_REG 0 /* RO register */
271 #define BLOGIC_CMD_PARM_REG 1 /* WO register */
272 #define BLOGIC_DATAIN_REG 1 /* RO register */
273 #define BLOGIC_INT_REG 2 /* RO register */
274 #define BLOGIC_GEOMETRY_REG 3 /* RO register */
275
276 /*
277 Define the structure of the write-only Control Register.
278 */
279
280 union blogic_cntrl_reg {
281 unsigned char all;
282 struct {
283 unsigned char:4; /* Bits 0-3 */
284 bool bus_reset:1; /* Bit 4 */
285 bool int_reset:1; /* Bit 5 */
286 bool soft_reset:1; /* Bit 6 */
287 bool hard_reset:1; /* Bit 7 */
288 } cr;
289 };
290
291 /*
292 Define the structure of the read-only Status Register.
293 */
294
295 union blogic_stat_reg {
296 unsigned char all;
297 struct {
298 bool cmd_invalid:1; /* Bit 0 */
299 bool rsvd:1; /* Bit 1 */
300 bool datain_ready:1; /* Bit 2 */
301 bool cmd_param_busy:1; /* Bit 3 */
302 bool adapter_ready:1; /* Bit 4 */
303 bool init_reqd:1; /* Bit 5 */
304 bool diag_failed:1; /* Bit 6 */
305 bool diag_active:1; /* Bit 7 */
306 } sr;
307 };
308
309 /*
310 Define the structure of the read-only Interrupt Register.
311 */
312
313 union blogic_int_reg {
314 unsigned char all;
315 struct {
316 bool mailin_loaded:1; /* Bit 0 */
317 bool mailout_avail:1; /* Bit 1 */
318 bool cmd_complete:1; /* Bit 2 */
319 bool ext_busreset:1; /* Bit 3 */
320 unsigned char rsvd:3; /* Bits 4-6 */
321 bool int_valid:1; /* Bit 7 */
322 } ir;
323 };
324
325 /*
326 Define the structure of the read-only Geometry Register.
327 */
328
329 union blogic_geo_reg {
330 unsigned char all;
331 struct {
332 enum blogic_bios_diskgeometry d0_geo:2; /* Bits 0-1 */
333 enum blogic_bios_diskgeometry d1_geo:2; /* Bits 2-3 */
334 unsigned char:3; /* Bits 4-6 */
335 bool ext_trans_enable:1; /* Bit 7 */
336 } gr;
337 };
338
339 /*
340 Define the BusLogic SCSI Host Adapter Command Register Operation Codes.
341 */
342
343 enum blogic_opcode {
344 BLOGIC_TEST_CMP_COMPLETE = 0x00,
345 BLOGIC_INIT_MBOX = 0x01,
346 BLOGIC_EXEC_MBOX_CMD = 0x02,
347 BLOGIC_EXEC_BIOS_CMD = 0x03,
348 BLOGIC_GET_BOARD_ID = 0x04,
349 BLOGIC_ENABLE_OUTBOX_AVAIL_INT = 0x05,
350 BLOGIC_SET_SELECT_TIMEOUT = 0x06,
351 BLOGIC_SET_PREEMPT_TIME = 0x07,
352 BLOGIC_SET_TIMEOFF_BUS = 0x08,
353 BLOGIC_SET_TXRATE = 0x09,
354 BLOGIC_INQ_DEV0TO7 = 0x0A,
355 BLOGIC_INQ_CONFIG = 0x0B,
356 BLOGIC_TGT_MODE = 0x0C,
357 BLOGIC_INQ_SETUPINFO = 0x0D,
358 BLOGIC_WRITE_LOCALRAM = 0x1A,
359 BLOGIC_READ_LOCALRAM = 0x1B,
360 BLOGIC_WRITE_BUSMASTER_FIFO = 0x1C,
361 BLOGIC_READ_BUSMASTER_FIFO = 0x1D,
362 BLOGIC_ECHO_CMDDATA = 0x1F,
363 BLOGIC_ADAPTER_DIAG = 0x20,
364 BLOGIC_SET_OPTIONS = 0x21,
365 BLOGIC_INQ_DEV8TO15 = 0x23,
366 BLOGIC_INQ_DEV = 0x24,
367 BLOGIC_DISABLE_INT = 0x25,
368 BLOGIC_INIT_EXT_MBOX = 0x81,
369 BLOGIC_EXEC_SCS_CMD = 0x83,
370 BLOGIC_INQ_FWVER_D3 = 0x84,
371 BLOGIC_INQ_FWVER_LETTER = 0x85,
372 BLOGIC_INQ_PCI_INFO = 0x86,
373 BLOGIC_INQ_MODELNO = 0x8B,
374 BLOGIC_INQ_SYNC_PERIOD = 0x8C,
375 BLOGIC_INQ_EXTSETUP = 0x8D,
376 BLOGIC_STRICT_RR = 0x8F,
377 BLOGIC_STORE_LOCALRAM = 0x90,
378 BLOGIC_FETCH_LOCALRAM = 0x91,
379 BLOGIC_STORE_TO_EEPROM = 0x92,
380 BLOGIC_LOAD_AUTOSCSICODE = 0x94,
381 BLOGIC_MOD_IOADDR = 0x95,
382 BLOGIC_SETCCB_FMT = 0x96,
383 BLOGIC_WRITE_INQBUF = 0x9A,
384 BLOGIC_READ_INQBUF = 0x9B,
385 BLOGIC_FLASH_LOAD = 0xA7,
386 BLOGIC_READ_SCAMDATA = 0xA8,
387 BLOGIC_WRITE_SCAMDATA = 0xA9
388 };
389
390 /*
391 Define the Inquire Board ID reply structure.
392 */
393
394 struct blogic_board_id {
395 unsigned char type; /* Byte 0 */
396 unsigned char custom_features; /* Byte 1 */
397 unsigned char fw_ver_digit1; /* Byte 2 */
398 unsigned char fw_ver_digit2; /* Byte 3 */
399 };
400
401 /*
402 Define the Inquire Configuration reply structure.
403 */
404
405 struct blogic_config {
406 unsigned char:5; /* Byte 0 Bits 0-4 */
407 bool dma_ch5:1; /* Byte 0 Bit 5 */
408 bool dma_ch6:1; /* Byte 0 Bit 6 */
409 bool dma_ch7:1; /* Byte 0 Bit 7 */
410 bool irq_ch9:1; /* Byte 1 Bit 0 */
411 bool irq_ch10:1; /* Byte 1 Bit 1 */
412 bool irq_ch11:1; /* Byte 1 Bit 2 */
413 bool irq_ch12:1; /* Byte 1 Bit 3 */
414 unsigned char:1; /* Byte 1 Bit 4 */
415 bool irq_ch14:1; /* Byte 1 Bit 5 */
416 bool irq_ch15:1; /* Byte 1 Bit 6 */
417 unsigned char:1; /* Byte 1 Bit 7 */
418 unsigned char id:4; /* Byte 2 Bits 0-3 */
419 unsigned char:4; /* Byte 2 Bits 4-7 */
420 };
421
422 /*
423 Define the Inquire Setup Information reply structure.
424 */
425
426 struct blogic_syncval {
427 unsigned char offset:4; /* Bits 0-3 */
428 unsigned char tx_period:3; /* Bits 4-6 */
429 bool sync:1; /* Bit 7 */
430 };
431
432 struct blogic_setup_info {
433 bool sync:1; /* Byte 0 Bit 0 */
434 bool parity:1; /* Byte 0 Bit 1 */
435 unsigned char:6; /* Byte 0 Bits 2-7 */
436 unsigned char tx_rate; /* Byte 1 */
437 unsigned char preempt_time; /* Byte 2 */
438 unsigned char timeoff_bus; /* Byte 3 */
439 unsigned char mbox_count; /* Byte 4 */
440 unsigned char mbox_addr[3]; /* Bytes 5-7 */
441 struct blogic_syncval sync0to7[8]; /* Bytes 8-15 */
442 unsigned char disconnect_ok0to7; /* Byte 16 */
443 unsigned char sig; /* Byte 17 */
444 unsigned char char_d; /* Byte 18 */
445 unsigned char bus_type; /* Byte 19 */
446 unsigned char wide_tx_ok0to7; /* Byte 20 */
447 unsigned char wide_tx_active0to7; /* Byte 21 */
448 struct blogic_syncval sync8to15[8]; /* Bytes 22-29 */
449 unsigned char disconnect_ok8to15; /* Byte 30 */
450 unsigned char:8; /* Byte 31 */
451 unsigned char wide_tx_ok8to15; /* Byte 32 */
452 unsigned char wide_tx_active8to15; /* Byte 33 */
453 };
454
455 /*
456 Define the Initialize Extended Mailbox request structure.
457 */
458
459 struct blogic_extmbox_req {
460 unsigned char mbox_count; /* Byte 0 */
461 u32 base_mbox_addr; /* Bytes 1-4 */
462 } PACKED;
463
464
465 /*
466 Define the Inquire PCI Host Adapter Information reply type. The ISA
467 Compatible I/O Port values are defined here and are also used with
468 the Modify I/O Address command.
469 */
470
471 enum blogic_isa_ioport {
472 BLOGIC_IO_330 = 0,
473 BLOGIC_IO_334 = 1,
474 BLOGIC_IO_230 = 2,
475 BLOGIC_IO_234 = 3,
476 BLOGIC_IO_130 = 4,
477 BLOGIC_IO_134 = 5,
478 BLOGIC_IO_DISABLE = 6,
479 BLOGIC_IO_DISABLE2 = 7
480 } PACKED;
481
482 struct blogic_adapter_info {
483 enum blogic_isa_ioport isa_port; /* Byte 0 */
484 unsigned char irq_ch; /* Byte 1 */
485 bool low_term:1; /* Byte 2 Bit 0 */
486 bool high_term:1; /* Byte 2 Bit 1 */
487 unsigned char:2; /* Byte 2 Bits 2-3 */
488 bool JP1:1; /* Byte 2 Bit 4 */
489 bool JP2:1; /* Byte 2 Bit 5 */
490 bool JP3:1; /* Byte 2 Bit 6 */
491 bool genericinfo_valid:1; /* Byte 2 Bit 7 */
492 unsigned char:8; /* Byte 3 */
493 };
494
495 /*
496 Define the Inquire Extended Setup Information reply structure.
497 */
498
499 struct blogic_ext_setup {
500 unsigned char bus_type; /* Byte 0 */
501 unsigned char bios_addr; /* Byte 1 */
502 unsigned short sg_limit; /* Bytes 2-3 */
503 unsigned char mbox_count; /* Byte 4 */
504 u32 base_mbox_addr; /* Bytes 5-8 */
505 struct {
506 unsigned char:2; /* Byte 9 Bits 0-1 */
507 bool fast_on_eisa:1; /* Byte 9 Bit 2 */
508 unsigned char:3; /* Byte 9 Bits 3-5 */
509 bool level_int:1; /* Byte 9 Bit 6 */
510 unsigned char:1; /* Byte 9 Bit 7 */
511 } misc;
512 unsigned char fw_rev[3]; /* Bytes 10-12 */
513 bool wide:1; /* Byte 13 Bit 0 */
514 bool differential:1; /* Byte 13 Bit 1 */
515 bool scam:1; /* Byte 13 Bit 2 */
516 bool ultra:1; /* Byte 13 Bit 3 */
517 bool smart_term:1; /* Byte 13 Bit 4 */
518 unsigned char:3; /* Byte 13 Bits 5-7 */
519 } PACKED;
520
521 /*
522 Define the Enable Strict Round Robin Mode request type.
523 */
524
525 enum blogic_rr_req {
526 BLOGIC_AGGRESSIVE_RR = 0,
527 BLOGIC_STRICT_RR_MODE = 1
528 } PACKED;
529
530
531 /*
532 Define the Fetch Host Adapter Local RAM request type.
533 */
534
535 #define BLOGIC_BIOS_BASE 0
536 #define BLOGIC_AUTOSCSI_BASE 64
537
538 struct blogic_fetch_localram {
539 unsigned char offset; /* Byte 0 */
540 unsigned char count; /* Byte 1 */
541 };
542
543 /*
544 Define the Host Adapter Local RAM AutoSCSI structure.
545 */
546
547 struct blogic_autoscsi {
548 unsigned char factory_sig[2]; /* Bytes 0-1 */
549 unsigned char info_bytes; /* Byte 2 */
550 unsigned char adapter_type[6]; /* Bytes 3-8 */
551 unsigned char:8; /* Byte 9 */
552 bool floppy:1; /* Byte 10 Bit 0 */
553 bool floppy_sec:1; /* Byte 10 Bit 1 */
554 bool level_int:1; /* Byte 10 Bit 2 */
555 unsigned char:2; /* Byte 10 Bits 3-4 */
556 unsigned char systemram_bios:3; /* Byte 10 Bits 5-7 */
557 unsigned char dma_ch:7; /* Byte 11 Bits 0-6 */
558 bool dma_autoconf:1; /* Byte 11 Bit 7 */
559 unsigned char irq_ch:7; /* Byte 12 Bits 0-6 */
560 bool irq_autoconf:1; /* Byte 12 Bit 7 */
561 unsigned char dma_tx_rate; /* Byte 13 */
562 unsigned char scsi_id; /* Byte 14 */
563 bool low_term:1; /* Byte 15 Bit 0 */
564 bool parity:1; /* Byte 15 Bit 1 */
565 bool high_term:1; /* Byte 15 Bit 2 */
566 bool noisy_cable:1; /* Byte 15 Bit 3 */
567 bool fast_sync_neg:1; /* Byte 15 Bit 4 */
568 bool reset_enabled:1; /* Byte 15 Bit 5 */
569 bool:1; /* Byte 15 Bit 6 */
570 bool active_negation:1; /* Byte 15 Bit 7 */
571 unsigned char bus_on_delay; /* Byte 16 */
572 unsigned char bus_off_delay; /* Byte 17 */
573 bool bios_enabled:1; /* Byte 18 Bit 0 */
574 bool int19_redir_enabled:1; /* Byte 18 Bit 1 */
575 bool ext_trans_enable:1; /* Byte 18 Bit 2 */
576 bool removable_as_fixed:1; /* Byte 18 Bit 3 */
577 bool:1; /* Byte 18 Bit 4 */
578 bool morethan2_drives:1; /* Byte 18 Bit 5 */
579 bool bios_int:1; /* Byte 18 Bit 6 */
580 bool floptical:1; /* Byte 19 Bit 7 */
581 unsigned short dev_enabled; /* Bytes 19-20 */
582 unsigned short wide_ok; /* Bytes 21-22 */
583 unsigned short fast_ok; /* Bytes 23-24 */
584 unsigned short sync_ok; /* Bytes 25-26 */
585 unsigned short discon_ok; /* Bytes 27-28 */
586 unsigned short send_start_unit; /* Bytes 29-30 */
587 unsigned short ignore_bios_scan; /* Bytes 31-32 */
588 unsigned char pci_int_pin:2; /* Byte 33 Bits 0-1 */
589 unsigned char adapter_ioport:2; /* Byte 33 Bits 2-3 */
590 bool strict_rr_enabled:1; /* Byte 33 Bit 4 */
591 bool vesabus_33mhzplus:1; /* Byte 33 Bit 5 */
592 bool vesa_burst_write:1; /* Byte 33 Bit 6 */
593 bool vesa_burst_read:1; /* Byte 33 Bit 7 */
594 unsigned short ultra_ok; /* Bytes 34-35 */
595 unsigned int:32; /* Bytes 36-39 */
596 unsigned char:8; /* Byte 40 */
597 unsigned char autoscsi_maxlun; /* Byte 41 */
598 bool:1; /* Byte 42 Bit 0 */
599 bool scam_dominant:1; /* Byte 42 Bit 1 */
600 bool scam_enabled:1; /* Byte 42 Bit 2 */
601 bool scam_lev2:1; /* Byte 42 Bit 3 */
602 unsigned char:4; /* Byte 42 Bits 4-7 */
603 bool int13_exten:1; /* Byte 43 Bit 0 */
604 bool:1; /* Byte 43 Bit 1 */
605 bool cd_boot:1; /* Byte 43 Bit 2 */
606 unsigned char:5; /* Byte 43 Bits 3-7 */
607 unsigned char boot_id:4; /* Byte 44 Bits 0-3 */
608 unsigned char boot_ch:4; /* Byte 44 Bits 4-7 */
609 unsigned char force_scan_order:1; /* Byte 45 Bit 0 */
610 unsigned char:7; /* Byte 45 Bits 1-7 */
611 unsigned short nontagged_to_alt_ok; /* Bytes 46-47 */
612 unsigned short reneg_sync_on_check; /* Bytes 48-49 */
613 unsigned char rsvd[10]; /* Bytes 50-59 */
614 unsigned char manuf_diag[2]; /* Bytes 60-61 */
615 unsigned short cksum; /* Bytes 62-63 */
616 } PACKED;
617
618 /*
619 Define the Host Adapter Local RAM Auto SCSI Byte 45 structure.
620 */
621
622 struct blogic_autoscsi_byte45 {
623 unsigned char force_scan_order:1; /* Bit 0 */
624 unsigned char:7; /* Bits 1-7 */
625 };
626
627 /*
628 Define the Host Adapter Local RAM BIOS Drive Map Byte structure.
629 */
630
631 #define BLOGIC_BIOS_DRVMAP 17
632
633 struct blogic_bios_drvmap {
634 unsigned char tgt_idbit3:1; /* Bit 0 */
635 unsigned char:2; /* Bits 1-2 */
636 enum blogic_bios_diskgeometry diskgeom:2; /* Bits 3-4 */
637 unsigned char tgt_id:3; /* Bits 5-7 */
638 };
639
640 /*
641 Define the Set CCB Format request type. Extended LUN Format CCBs are
642 necessary to support more than 8 Logical Units per Target Device.
643 */
644
645 enum blogic_setccb_fmt {
646 BLOGIC_LEGACY_LUN_CCB = 0,
647 BLOGIC_EXT_LUN_CCB = 1
648 } PACKED;
649
650 /*
651 Define the Outgoing Mailbox Action Codes.
652 */
653
654 enum blogic_action {
655 BLOGIC_OUTBOX_FREE = 0x00,
656 BLOGIC_MBOX_START = 0x01,
657 BLOGIC_MBOX_ABORT = 0x02
658 } PACKED;
659
660
661 /*
662 Define the Incoming Mailbox Completion Codes. The MultiMaster Firmware
663 only uses codes 0 - 4. The FlashPoint SCCB Manager has no mailboxes, so
664 completion codes are stored in the CCB; it only uses codes 1, 2, 4, and 5.
665 */
666
667 enum blogic_cmplt_code {
668 BLOGIC_INBOX_FREE = 0x00,
669 BLOGIC_CMD_COMPLETE_GOOD = 0x01,
670 BLOGIC_CMD_ABORT_BY_HOST = 0x02,
671 BLOGIC_CMD_NOTFOUND = 0x03,
672 BLOGIC_CMD_COMPLETE_ERROR = 0x04,
673 BLOGIC_INVALID_CCB = 0x05
674 } PACKED;
675
676 /*
677 Define the Command Control Block (CCB) Opcodes.
678 */
679
680 enum blogic_ccb_opcode {
681 BLOGIC_INITIATOR_CCB = 0x00,
682 BLOGIC_TGT_CCB = 0x01,
683 BLOGIC_INITIATOR_CCB_SG = 0x02,
684 BLOGIC_INITIATOR_CCBB_RESIDUAL = 0x03,
685 BLOGIC_INITIATOR_CCB_SG_RESIDUAL = 0x04,
686 BLOGIC_BDR = 0x81
687 } PACKED;
688
689
690 /*
691 Define the CCB Data Direction Codes.
692 */
693
694 enum blogic_datadir {
695 BLOGIC_UNCHECKED_TX = 0,
696 BLOGIC_DATAIN_CHECKED = 1,
697 BLOGIC_DATAOUT_CHECKED = 2,
698 BLOGIC_NOTX = 3
699 };
700
701
702 /*
703 Define the Host Adapter Status Codes. The MultiMaster Firmware does not
704 return status code 0x0C; it uses 0x12 for both overruns and underruns.
705 */
706
707 enum blogic_adapter_status {
708 BLOGIC_CMD_CMPLT_NORMAL = 0x00,
709 BLOGIC_LINK_CMD_CMPLT = 0x0A,
710 BLOGIC_LINK_CMD_CMPLT_FLAG = 0x0B,
711 BLOGIC_DATA_UNDERRUN = 0x0C,
712 BLOGIC_SELECT_TIMEOUT = 0x11,
713 BLOGIC_DATA_OVERRUN = 0x12,
714 BLOGIC_NOEXPECT_BUSFREE = 0x13,
715 BLOGIC_INVALID_BUSPHASE = 0x14,
716 BLOGIC_INVALID_OUTBOX_CODE = 0x15,
717 BLOGIC_INVALID_CMD_CODE = 0x16,
718 BLOGIC_LINKCCB_BADLUN = 0x17,
719 BLOGIC_BAD_CMD_PARAM = 0x1A,
720 BLOGIC_AUTOREQSENSE_FAIL = 0x1B,
721 BLOGIC_TAGQUEUE_REJECT = 0x1C,
722 BLOGIC_BAD_MSG_RCVD = 0x1D,
723 BLOGIC_HW_FAIL = 0x20,
724 BLOGIC_NORESPONSE_TO_ATN = 0x21,
725 BLOGIC_HW_RESET = 0x22,
726 BLOGIC_RST_FROM_OTHERDEV = 0x23,
727 BLOGIC_BAD_RECONNECT = 0x24,
728 BLOGIC_HW_BDR = 0x25,
729 BLOGIC_ABRT_QUEUE = 0x26,
730 BLOGIC_ADAPTER_SW_ERROR = 0x27,
731 BLOGIC_HW_TIMEOUT = 0x30,
732 BLOGIC_PARITY_ERR = 0x34
733 } PACKED;
734
735
736 /*
737 Define the SCSI Target Device Status Codes.
738 */
739
740 enum blogic_tgt_status {
741 BLOGIC_OP_GOOD = 0x00,
742 BLOGIC_CHECKCONDITION = 0x02,
743 BLOGIC_DEVBUSY = 0x08
744 } PACKED;
745
746 /*
747 Define the Queue Tag Codes.
748 */
749
750 enum blogic_queuetag {
751 BLOGIC_SIMPLETAG = 0,
752 BLOGIC_HEADTAG = 1,
753 BLOGIC_ORDEREDTAG = 2,
754 BLOGIC_RSVDTAG = 3
755 };
756
757 /*
758 Define the SCSI Command Descriptor Block (CDB).
759 */
760
761 #define BLOGIC_CDB_MAXLEN 12
762
763
764 /*
765 Define the Scatter/Gather Segment structure required by the MultiMaster
766 Firmware Interface and the FlashPoint SCCB Manager.
767 */
768
769 struct blogic_sg_seg {
770 u32 segbytes; /* Bytes 0-3 */
771 u32 segdata; /* Bytes 4-7 */
772 };
773
774 /*
775 Define the Driver CCB Status Codes.
776 */
777
778 enum blogic_ccb_status {
779 BLOGIC_CCB_FREE = 0,
780 BLOGIC_CCB_ACTIVE = 1,
781 BLOGIC_CCB_COMPLETE = 2,
782 BLOGIC_CCB_RESET = 3
783 } PACKED;
784
785
786 /*
787 Define the 32 Bit Mode Command Control Block (CCB) structure. The first 40
788 bytes are defined by and common to both the MultiMaster Firmware and the
789 FlashPoint SCCB Manager. The next 60 bytes are defined by the FlashPoint
790 SCCB Manager. The remaining components are defined by the Linux BusLogic
791 Driver. Extended LUN Format CCBs differ from Legacy LUN Format 32 Bit Mode
792 CCBs only in having the TagEnable and QueueTag fields moved from byte 17 to
793 byte 1, and the Logical Unit field in byte 17 expanded to 6 bits. In theory,
794 Extended LUN Format CCBs can support up to 64 Logical Units, but in practice
795 many devices will respond improperly to Logical Units between 32 and 63, and
796 the SCSI-2 specification defines Bit 5 as LUNTAR. Extended LUN Format CCBs
797 are used by recent versions of the MultiMaster Firmware, as well as by the
798 FlashPoint SCCB Manager; the FlashPoint SCCB Manager only supports 32 Logical
799 Units. Since 64 Logical Units are unlikely to be needed in practice, and
800 since they are problematic for the above reasons, and since limiting them to
801 5 bits simplifies the CCB structure definition, this driver only supports
802 32 Logical Units per Target Device.
803 */
804
805 struct blogic_ccb {
806 /*
807 MultiMaster Firmware and FlashPoint SCCB Manager Common Portion.
808 */
809 enum blogic_ccb_opcode opcode; /* Byte 0 */
810 unsigned char:3; /* Byte 1 Bits 0-2 */
811 enum blogic_datadir datadir:2; /* Byte 1 Bits 3-4 */
812 bool tag_enable:1; /* Byte 1 Bit 5 */
813 enum blogic_queuetag queuetag:2; /* Byte 1 Bits 6-7 */
814 unsigned char cdblen; /* Byte 2 */
815 unsigned char sense_datalen; /* Byte 3 */
816 u32 datalen; /* Bytes 4-7 */
817 u32 data; /* Bytes 8-11 */
818 unsigned char:8; /* Byte 12 */
819 unsigned char:8; /* Byte 13 */
820 enum blogic_adapter_status adapter_status; /* Byte 14 */
821 enum blogic_tgt_status tgt_status; /* Byte 15 */
822 unsigned char tgt_id; /* Byte 16 */
823 unsigned char lun:5; /* Byte 17 Bits 0-4 */
824 bool legacytag_enable:1; /* Byte 17 Bit 5 */
825 enum blogic_queuetag legacy_tag:2; /* Byte 17 Bits 6-7 */
826 unsigned char cdb[BLOGIC_CDB_MAXLEN]; /* Bytes 18-29 */
827 unsigned char:8; /* Byte 30 */
828 unsigned char:8; /* Byte 31 */
829 u32 rsvd_int; /* Bytes 32-35 */
830 u32 sensedata; /* Bytes 36-39 */
831 /*
832 FlashPoint SCCB Manager Defined Portion.
833 */
834 void (*callback) (struct blogic_ccb *); /* Bytes 40-43 */
835 u32 base_addr; /* Bytes 44-47 */
836 enum blogic_cmplt_code comp_code; /* Byte 48 */
837 #ifdef CONFIG_SCSI_FLASHPOINT
838 unsigned char:8; /* Byte 49 */
839 u16 os_flags; /* Bytes 50-51 */
840 unsigned char private[24]; /* Bytes 52-99 */
841 void *rsvd1;
842 void *rsvd2;
843 unsigned char private2[16];
844 #endif
845 /*
846 BusLogic Linux Driver Defined Portion.
847 */
848 dma_addr_t allocgrp_head;
849 unsigned int allocgrp_size;
850 u32 dma_handle;
851 enum blogic_ccb_status status;
852 unsigned long serial;
853 struct scsi_cmnd *command;
854 struct blogic_adapter *adapter;
855 struct blogic_ccb *next;
856 struct blogic_ccb *next_all;
857 struct blogic_sg_seg sglist[BLOGIC_SG_LIMIT];
858 };
859
860 /*
861 Define the 32 Bit Mode Outgoing Mailbox structure.
862 */
863
864 struct blogic_outbox {
865 u32 ccb; /* Bytes 0-3 */
866 u32:24; /* Bytes 4-6 */
867 enum blogic_action action; /* Byte 7 */
868 };
869
870 /*
871 Define the 32 Bit Mode Incoming Mailbox structure.
872 */
873
874 struct blogic_inbox {
875 u32 ccb; /* Bytes 0-3 */
876 enum blogic_adapter_status adapter_status; /* Byte 4 */
877 enum blogic_tgt_status tgt_status; /* Byte 5 */
878 unsigned char:8; /* Byte 6 */
879 enum blogic_cmplt_code comp_code; /* Byte 7 */
880 };
881
882
883 /*
884 Define the BusLogic Driver Options structure.
885 */
886
887 struct blogic_drvr_options {
888 unsigned short tagq_ok;
889 unsigned short tagq_ok_mask;
890 unsigned short bus_settle_time;
891 unsigned short stop_tgt_inquiry;
892 unsigned char common_qdepth;
893 unsigned char qdepth[BLOGIC_MAXDEV];
894 };
895
896 /*
897 Define the Host Adapter Target Flags structure.
898 */
899
900 struct blogic_tgt_flags {
901 bool tgt_exists:1;
902 bool tagq_ok:1;
903 bool wide_ok:1;
904 bool tagq_active:1;
905 bool wide_active:1;
906 bool cmd_good:1;
907 bool tgt_info_in:1;
908 };
909
910 /*
911 Define the Host Adapter Target Statistics structure.
912 */
913
914 #define BLOGIC_SZ_BUCKETS 10
915
916 struct blogic_tgt_stats {
917 unsigned int cmds_tried;
918 unsigned int cmds_complete;
919 unsigned int read_cmds;
920 unsigned int write_cmds;
921 struct blogic_byte_count bytesread;
922 struct blogic_byte_count byteswritten;
923 unsigned int read_sz_buckets[BLOGIC_SZ_BUCKETS];
924 unsigned int write_sz_buckets[BLOGIC_SZ_BUCKETS];
925 unsigned short aborts_request;
926 unsigned short aborts_tried;
927 unsigned short aborts_done;
928 unsigned short bdr_request;
929 unsigned short bdr_tried;
930 unsigned short bdr_done;
931 unsigned short adapter_reset_req;
932 unsigned short adapter_reset_attempt;
933 unsigned short adapter_reset_done;
934 };
935
936 /*
937 Define the FlashPoint Card Handle data type.
938 */
939
940 #define FPOINT_BADCARD_HANDLE 0xFFFFFFFFL
941
942
943 /*
944 Define the FlashPoint Information structure. This structure is defined
945 by the FlashPoint SCCB Manager.
946 */
947
948 struct fpoint_info {
949 u32 base_addr; /* Bytes 0-3 */
950 bool present; /* Byte 4 */
951 unsigned char irq_ch; /* Byte 5 */
952 unsigned char scsi_id; /* Byte 6 */
953 unsigned char scsi_lun; /* Byte 7 */
954 u16 fw_rev; /* Bytes 8-9 */
955 u16 sync_ok; /* Bytes 10-11 */
956 u16 fast_ok; /* Bytes 12-13 */
957 u16 ultra_ok; /* Bytes 14-15 */
958 u16 discon_ok; /* Bytes 16-17 */
959 u16 wide_ok; /* Bytes 18-19 */
960 bool parity:1; /* Byte 20 Bit 0 */
961 bool wide:1; /* Byte 20 Bit 1 */
962 bool softreset:1; /* Byte 20 Bit 2 */
963 bool ext_trans_enable:1; /* Byte 20 Bit 3 */
964 bool low_term:1; /* Byte 20 Bit 4 */
965 bool high_term:1; /* Byte 20 Bit 5 */
966 bool report_underrun:1; /* Byte 20 Bit 6 */
967 bool scam_enabled:1; /* Byte 20 Bit 7 */
968 bool scam_lev2:1; /* Byte 21 Bit 0 */
969 unsigned char:7; /* Byte 21 Bits 1-7 */
970 unsigned char family; /* Byte 22 */
971 unsigned char bus_type; /* Byte 23 */
972 unsigned char model[3]; /* Bytes 24-26 */
973 unsigned char relative_cardnum; /* Byte 27 */
974 unsigned char rsvd[4]; /* Bytes 28-31 */
975 u32 os_rsvd; /* Bytes 32-35 */
976 unsigned char translation_info[4]; /* Bytes 36-39 */
977 u32 rsvd2[5]; /* Bytes 40-59 */
978 u32 sec_range; /* Bytes 60-63 */
979 };
980
981 /*
982 Define the BusLogic Driver Host Adapter structure.
983 */
984
985 struct blogic_adapter {
986 struct Scsi_Host *scsi_host;
987 struct pci_dev *pci_device;
988 enum blogic_adapter_type adapter_type;
989 enum blogic_adapter_bus_type adapter_bus_type;
990 unsigned long io_addr;
991 unsigned long pci_addr;
992 unsigned short addr_count;
993 unsigned char host_no;
994 unsigned char model[9];
995 unsigned char fw_ver[6];
996 unsigned char full_model[18];
997 unsigned char bus;
998 unsigned char dev;
999 unsigned char irq_ch;
1000 unsigned char dma_ch;
1001 unsigned char scsi_id;
1002 bool irq_acquired:1;
1003 bool dma_chan_acquired:1;
1004 bool ext_trans_enable:1;
1005 bool parity:1;
1006 bool reset_enabled:1;
1007 bool level_int:1;
1008 bool wide:1;
1009 bool differential:1;
1010 bool scam:1;
1011 bool ultra:1;
1012 bool ext_lun:1;
1013 bool terminfo_valid:1;
1014 bool low_term:1;
1015 bool high_term:1;
1016 bool need_bouncebuf:1;
1017 bool strict_rr:1;
1018 bool scam_enabled:1;
1019 bool scam_lev2:1;
1020 bool adapter_initd:1;
1021 bool adapter_extreset:1;
1022 bool adapter_intern_err:1;
1023 bool processing_ccbs;
1024 volatile bool adapter_cmd_complete;
1025 unsigned short adapter_sglimit;
1026 unsigned short drvr_sglimit;
1027 unsigned short maxdev;
1028 unsigned short maxlun;
1029 unsigned short mbox_count;
1030 unsigned short initccbs;
1031 unsigned short inc_ccbs;
1032 unsigned short alloc_ccbs;
1033 unsigned short drvr_qdepth;
1034 unsigned short adapter_qdepth;
1035 unsigned short untag_qdepth;
1036 unsigned short common_qdepth;
1037 unsigned short bus_settle_time;
1038 unsigned short sync_ok;
1039 unsigned short fast_ok;
1040 unsigned short ultra_ok;
1041 unsigned short wide_ok;
1042 unsigned short discon_ok;
1043 unsigned short tagq_ok;
1044 unsigned short ext_resets;
1045 unsigned short adapter_intern_errors;
1046 unsigned short tgt_count;
1047 unsigned short msgbuflen;
1048 u32 bios_addr;
1049 struct blogic_drvr_options *drvr_opts;
1050 struct fpoint_info fpinfo;
1051 void *cardhandle;
1052 struct list_head host_list;
1053 struct blogic_ccb *all_ccbs;
1054 struct blogic_ccb *free_ccbs;
1055 struct blogic_ccb *firstccb;
1056 struct blogic_ccb *lastccb;
1057 struct blogic_ccb *bdr_pend[BLOGIC_MAXDEV];
1058 struct blogic_tgt_flags tgt_flags[BLOGIC_MAXDEV];
1059 unsigned char qdepth[BLOGIC_MAXDEV];
1060 unsigned char sync_period[BLOGIC_MAXDEV];
1061 unsigned char sync_offset[BLOGIC_MAXDEV];
1062 unsigned char active_cmds[BLOGIC_MAXDEV];
1063 unsigned int cmds_since_rst[BLOGIC_MAXDEV];
1064 unsigned long last_seqpoint[BLOGIC_MAXDEV];
1065 unsigned long last_resettried[BLOGIC_MAXDEV];
1066 unsigned long last_resetdone[BLOGIC_MAXDEV];
1067 struct blogic_outbox *first_outbox;
1068 struct blogic_outbox *last_outbox;
1069 struct blogic_outbox *next_outbox;
1070 struct blogic_inbox *first_inbox;
1071 struct blogic_inbox *last_inbox;
1072 struct blogic_inbox *next_inbox;
1073 struct blogic_tgt_stats tgt_stats[BLOGIC_MAXDEV];
1074 unsigned char *mbox_space;
1075 dma_addr_t mbox_space_handle;
1076 unsigned int mbox_sz;
1077 unsigned long ccb_offset;
1078 char msgbuf[BLOGIC_MSGBUF_SIZE];
1079 };
1080
1081 /*
1082 Define a structure for the BIOS Disk Parameters.
1083 */
1084
1085 struct bios_diskparam {
1086 int heads;
1087 int sectors;
1088 int cylinders;
1089 };
1090
1091 /*
1092 Define a structure for the SCSI Inquiry command results.
1093 */
1094
1095 struct scsi_inquiry {
1096 unsigned char devtype:5; /* Byte 0 Bits 0-4 */
1097 unsigned char dev_qual:3; /* Byte 0 Bits 5-7 */
1098 unsigned char dev_modifier:7; /* Byte 1 Bits 0-6 */
1099 bool rmb:1; /* Byte 1 Bit 7 */
1100 unsigned char ansi_ver:3; /* Byte 2 Bits 0-2 */
1101 unsigned char ecma_ver:3; /* Byte 2 Bits 3-5 */
1102 unsigned char iso_ver:2; /* Byte 2 Bits 6-7 */
1103 unsigned char resp_fmt:4; /* Byte 3 Bits 0-3 */
1104 unsigned char:2; /* Byte 3 Bits 4-5 */
1105 bool TrmIOP:1; /* Byte 3 Bit 6 */
1106 bool AENC:1; /* Byte 3 Bit 7 */
1107 unsigned char addl_len; /* Byte 4 */
1108 unsigned char:8; /* Byte 5 */
1109 unsigned char:8; /* Byte 6 */
1110 bool SftRe:1; /* Byte 7 Bit 0 */
1111 bool CmdQue:1; /* Byte 7 Bit 1 */
1112 bool:1; /* Byte 7 Bit 2 */
1113 bool linked:1; /* Byte 7 Bit 3 */
1114 bool sync:1; /* Byte 7 Bit 4 */
1115 bool WBus16:1; /* Byte 7 Bit 5 */
1116 bool WBus32:1; /* Byte 7 Bit 6 */
1117 bool RelAdr:1; /* Byte 7 Bit 7 */
1118 unsigned char vendor[8]; /* Bytes 8-15 */
1119 unsigned char product[16]; /* Bytes 16-31 */
1120 unsigned char product_rev[4]; /* Bytes 32-35 */
1121 };
1122
1123
1124 /*
1125 Define functions to provide an abstraction for reading and writing the
1126 Host Adapter I/O Registers.
1127 */
1128
blogic_busreset(struct blogic_adapter * adapter)1129 static inline void blogic_busreset(struct blogic_adapter *adapter)
1130 {
1131 union blogic_cntrl_reg cr;
1132 cr.all = 0;
1133 cr.cr.bus_reset = true;
1134 outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG);
1135 }
1136
blogic_intreset(struct blogic_adapter * adapter)1137 static inline void blogic_intreset(struct blogic_adapter *adapter)
1138 {
1139 union blogic_cntrl_reg cr;
1140 cr.all = 0;
1141 cr.cr.int_reset = true;
1142 outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG);
1143 }
1144
blogic_softreset(struct blogic_adapter * adapter)1145 static inline void blogic_softreset(struct blogic_adapter *adapter)
1146 {
1147 union blogic_cntrl_reg cr;
1148 cr.all = 0;
1149 cr.cr.soft_reset = true;
1150 outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG);
1151 }
1152
blogic_hardreset(struct blogic_adapter * adapter)1153 static inline void blogic_hardreset(struct blogic_adapter *adapter)
1154 {
1155 union blogic_cntrl_reg cr;
1156 cr.all = 0;
1157 cr.cr.hard_reset = true;
1158 outb(cr.all, adapter->io_addr + BLOGIC_CNTRL_REG);
1159 }
1160
blogic_rdstatus(struct blogic_adapter * adapter)1161 static inline unsigned char blogic_rdstatus(struct blogic_adapter *adapter)
1162 {
1163 return inb(adapter->io_addr + BLOGIC_STATUS_REG);
1164 }
1165
blogic_setcmdparam(struct blogic_adapter * adapter,unsigned char value)1166 static inline void blogic_setcmdparam(struct blogic_adapter *adapter,
1167 unsigned char value)
1168 {
1169 outb(value, adapter->io_addr + BLOGIC_CMD_PARM_REG);
1170 }
1171
blogic_rddatain(struct blogic_adapter * adapter)1172 static inline unsigned char blogic_rddatain(struct blogic_adapter *adapter)
1173 {
1174 return inb(adapter->io_addr + BLOGIC_DATAIN_REG);
1175 }
1176
blogic_rdint(struct blogic_adapter * adapter)1177 static inline unsigned char blogic_rdint(struct blogic_adapter *adapter)
1178 {
1179 return inb(adapter->io_addr + BLOGIC_INT_REG);
1180 }
1181
blogic_rdgeom(struct blogic_adapter * adapter)1182 static inline unsigned char blogic_rdgeom(struct blogic_adapter *adapter)
1183 {
1184 return inb(adapter->io_addr + BLOGIC_GEOMETRY_REG);
1185 }
1186
1187 /*
1188 blogic_execmbox issues an Execute Mailbox Command, which
1189 notifies the Host Adapter that an entry has been made in an Outgoing
1190 Mailbox.
1191 */
1192
blogic_execmbox(struct blogic_adapter * adapter)1193 static inline void blogic_execmbox(struct blogic_adapter *adapter)
1194 {
1195 blogic_setcmdparam(adapter, BLOGIC_EXEC_MBOX_CMD);
1196 }
1197
1198 /*
1199 blogic_delay waits for Seconds to elapse.
1200 */
1201
blogic_delay(int seconds)1202 static inline void blogic_delay(int seconds)
1203 {
1204 mdelay(1000 * seconds);
1205 }
1206
1207 /*
1208 virt_to_32bit_virt maps between Kernel Virtual Addresses and
1209 32 bit Kernel Virtual Addresses. This avoids compilation warnings
1210 on 64 bit architectures.
1211 */
1212
virt_to_32bit_virt(void * virt_addr)1213 static inline u32 virt_to_32bit_virt(void *virt_addr)
1214 {
1215 return (u32) (unsigned long) virt_addr;
1216 }
1217
1218 /*
1219 blogic_inc_count increments counter by 1, stopping at
1220 65535 rather than wrapping around to 0.
1221 */
1222
blogic_inc_count(unsigned short * count)1223 static inline void blogic_inc_count(unsigned short *count)
1224 {
1225 if (*count < 65535)
1226 (*count)++;
1227 }
1228
1229 /*
1230 blogic_addcount increments Byte Counter by Amount.
1231 */
1232
blogic_addcount(struct blogic_byte_count * bytecount,unsigned int amount)1233 static inline void blogic_addcount(struct blogic_byte_count *bytecount,
1234 unsigned int amount)
1235 {
1236 bytecount->units += amount;
1237 if (bytecount->units > 999999999) {
1238 bytecount->units -= 1000000000;
1239 bytecount->billions++;
1240 }
1241 }
1242
1243 /*
1244 blogic_incszbucket increments the Bucket for Amount.
1245 */
1246
blogic_incszbucket(unsigned int * cmdsz_buckets,unsigned int amount)1247 static inline void blogic_incszbucket(unsigned int *cmdsz_buckets,
1248 unsigned int amount)
1249 {
1250 int index = 0;
1251 if (amount < 8 * 1024) {
1252 if (amount < 2 * 1024)
1253 index = (amount < 1 * 1024 ? 0 : 1);
1254 else
1255 index = (amount < 4 * 1024 ? 2 : 3);
1256 } else if (amount < 128 * 1024) {
1257 if (amount < 32 * 1024)
1258 index = (amount < 16 * 1024 ? 4 : 5);
1259 else
1260 index = (amount < 64 * 1024 ? 6 : 7);
1261 } else
1262 index = (amount < 256 * 1024 ? 8 : 9);
1263 cmdsz_buckets[index]++;
1264 }
1265
1266 /*
1267 Define the version number of the FlashPoint Firmware (SCCB Manager).
1268 */
1269
1270 #define FLASHPOINT_FW_VER "5.02"
1271
1272 /*
1273 Define the possible return values from FlashPoint_HandleInterrupt.
1274 */
1275
1276 #define FPOINT_NORMAL_INT 0x00
1277 #define FPOINT_INTERN_ERR 0xFE
1278 #define FPOINT_EXT_RESET 0xFF
1279
1280 /*
1281 Define prototypes for the forward referenced BusLogic Driver
1282 Internal Functions.
1283 */
1284
1285 static const char *blogic_drvr_info(struct Scsi_Host *);
1286 static int blogic_qcmd(struct Scsi_Host *h, struct scsi_cmnd *);
1287 static int blogic_diskparam(struct scsi_device *, struct block_device *, sector_t, int *);
1288 static int blogic_slaveconfig(struct scsi_device *);
1289 static void blogic_qcompleted_ccb(struct blogic_ccb *);
1290 static irqreturn_t blogic_inthandler(int, void *);
1291 static int blogic_resetadapter(struct blogic_adapter *, bool hard_reset);
1292 static void blogic_msg(enum blogic_msglevel, char *, struct blogic_adapter *, ...);
1293 static int __init blogic_setup(char *);
1294
1295 #endif /* _BUSLOGIC_H */
1296