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1
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 This program is free software; you may redistribute and/or modify it under
9 the terms of the GNU General Public License Version 2 as published by the
10 Free Software Foundation.
11
12 This program is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for complete details.
16
17 The author respectfully requests that any modifications to this software be
18 sent directly to him for evaluation and testing.
19
20 Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose
21 advice has been invaluable, to David Gentzel, for writing the original Linux
22 BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site.
23
24 Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB
25 Manager available as freely redistributable source code.
26
27*/
28
29#define blogic_drvr_version "2.1.17"
30#define blogic_drvr_date "12 September 2013"
31
32#include <linux/module.h>
33#include <linux/init.h>
34#include <linux/interrupt.h>
35#include <linux/types.h>
36#include <linux/blkdev.h>
37#include <linux/delay.h>
38#include <linux/ioport.h>
39#include <linux/mm.h>
40#include <linux/stat.h>
41#include <linux/pci.h>
42#include <linux/spinlock.h>
43#include <linux/jiffies.h>
44#include <linux/dma-mapping.h>
45#include <linux/slab.h>
46#include <scsi/scsicam.h>
47
48#include <asm/dma.h>
49#include <asm/io.h>
50
51#include <scsi/scsi.h>
52#include <scsi/scsi_cmnd.h>
53#include <scsi/scsi_device.h>
54#include <scsi/scsi_host.h>
55#include <scsi/scsi_tcq.h>
56#include "BusLogic.h"
57#include "FlashPoint.c"
58
59#ifndef FAILURE
60#define FAILURE (-1)
61#endif
62
63static struct scsi_host_template blogic_template;
64
65/*
66 blogic_drvr_options_count is a count of the number of BusLogic Driver
67 Options specifications provided via the Linux Kernel Command Line or via
68 the Loadable Kernel Module Installation Facility.
69*/
70
71static int blogic_drvr_options_count;
72
73
74/*
75 blogic_drvr_options is an array of Driver Options structures representing
76 BusLogic Driver Options specifications provided via the Linux Kernel Command
77 Line or via the Loadable Kernel Module Installation Facility.
78*/
79
80static struct blogic_drvr_options blogic_drvr_options[BLOGIC_MAX_ADAPTERS];
81
82
83/*
84 BusLogic can be assigned a string by insmod.
85*/
86
87MODULE_LICENSE("GPL");
88#ifdef MODULE
89static char *BusLogic;
90module_param(BusLogic, charp, 0);
91#endif
92
93
94/*
95 blogic_probe_options is a set of Probe Options to be applied across
96 all BusLogic Host Adapters.
97*/
98
99static struct blogic_probe_options blogic_probe_options;
100
101
102/*
103 blogic_global_options is a set of Global Options to be applied across
104 all BusLogic Host Adapters.
105*/
106
107static struct blogic_global_options blogic_global_options;
108
109static LIST_HEAD(blogic_host_list);
110
111/*
112 blogic_probeinfo_count is the number of entries in blogic_probeinfo_list.
113*/
114
115static int blogic_probeinfo_count;
116
117
118/*
119 blogic_probeinfo_list is the list of I/O Addresses and Bus Probe Information
120 to be checked for potential BusLogic Host Adapters. It is initialized by
121 interrogating the PCI Configuration Space on PCI machines as well as from the
122 list of standard BusLogic I/O Addresses.
123*/
124
125static struct blogic_probeinfo *blogic_probeinfo_list;
126
127
128/*
129 blogic_cmd_failure_reason holds a string identifying the reason why a
130 call to blogic_cmd failed. It is only non-NULL when blogic_cmd
131 returns a failure code.
132*/
133
134static char *blogic_cmd_failure_reason;
135
136/*
137 blogic_announce_drvr announces the Driver Version and Date, Author's
138 Name, Copyright Notice, and Electronic Mail Address.
139*/
140
141static void blogic_announce_drvr(struct blogic_adapter *adapter)
142{
143 blogic_announce("***** BusLogic SCSI Driver Version " blogic_drvr_version " of " blogic_drvr_date " *****\n", adapter);
144 blogic_announce("Copyright 1995-1998 by Leonard N. Zubkoff " "<lnz@dandelion.com>\n", adapter);
145}
146
147
148/*
149 blogic_drvr_info returns the Host Adapter Name to identify this SCSI
150 Driver and Host Adapter.
151*/
152
153static const char *blogic_drvr_info(struct Scsi_Host *host)
154{
155 struct blogic_adapter *adapter =
156 (struct blogic_adapter *) host->hostdata;
157 return adapter->full_model;
158}
159
160/*
161 blogic_init_ccbs initializes a group of Command Control Blocks (CCBs)
162 for Host Adapter from the blk_size bytes located at blk_pointer. The newly
163 created CCBs are added to Host Adapter's free list.
164*/
165
166static void blogic_init_ccbs(struct blogic_adapter *adapter, void *blk_pointer,
167 int blk_size, dma_addr_t blkp)
168{
169 struct blogic_ccb *ccb = (struct blogic_ccb *) blk_pointer;
170 unsigned int offset = 0;
171 memset(blk_pointer, 0, blk_size);
172 ccb->allocgrp_head = blkp;
173 ccb->allocgrp_size = blk_size;
174 while ((blk_size -= sizeof(struct blogic_ccb)) >= 0) {
175 ccb->status = BLOGIC_CCB_FREE;
176 ccb->adapter = adapter;
177 ccb->dma_handle = (u32) blkp + offset;
178 if (blogic_flashpoint_type(adapter)) {
179 ccb->callback = blogic_qcompleted_ccb;
180 ccb->base_addr = adapter->fpinfo.base_addr;
181 }
182 ccb->next = adapter->free_ccbs;
183 ccb->next_all = adapter->all_ccbs;
184 adapter->free_ccbs = ccb;
185 adapter->all_ccbs = ccb;
186 adapter->alloc_ccbs++;
187 ccb++;
188 offset += sizeof(struct blogic_ccb);
189 }
190}
191
192
193/*
194 blogic_create_initccbs allocates the initial CCBs for Host Adapter.
195*/
196
197static bool __init blogic_create_initccbs(struct blogic_adapter *adapter)
198{
199 int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb);
200 void *blk_pointer;
201 dma_addr_t blkp;
202
203 while (adapter->alloc_ccbs < adapter->initccbs) {
204 blk_pointer = pci_alloc_consistent(adapter->pci_device,
205 blk_size, &blkp);
206 if (blk_pointer == NULL) {
207 blogic_err("UNABLE TO ALLOCATE CCB GROUP - DETACHING\n",
208 adapter);
209 return false;
210 }
211 blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp);
212 }
213 return true;
214}
215
216
217/*
218 blogic_destroy_ccbs deallocates the CCBs for Host Adapter.
219*/
220
221static void blogic_destroy_ccbs(struct blogic_adapter *adapter)
222{
223 struct blogic_ccb *next_ccb = adapter->all_ccbs, *ccb, *lastccb = NULL;
224 adapter->all_ccbs = NULL;
225 adapter->free_ccbs = NULL;
226 while ((ccb = next_ccb) != NULL) {
227 next_ccb = ccb->next_all;
228 if (ccb->allocgrp_head) {
229 if (lastccb)
230 pci_free_consistent(adapter->pci_device,
231 lastccb->allocgrp_size, lastccb,
232 lastccb->allocgrp_head);
233 lastccb = ccb;
234 }
235 }
236 if (lastccb)
237 pci_free_consistent(adapter->pci_device, lastccb->allocgrp_size,
238 lastccb, lastccb->allocgrp_head);
239}
240
241
242/*
243 blogic_create_addlccbs allocates Additional CCBs for Host Adapter. If
244 allocation fails and there are no remaining CCBs available, the Driver Queue
245 Depth is decreased to a known safe value to avoid potential deadlocks when
246 multiple host adapters share the same IRQ Channel.
247*/
248
249static void blogic_create_addlccbs(struct blogic_adapter *adapter,
250 int addl_ccbs, bool print_success)
251{
252 int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb);
253 int prev_alloc = adapter->alloc_ccbs;
254 void *blk_pointer;
255 dma_addr_t blkp;
256 if (addl_ccbs <= 0)
257 return;
258 while (adapter->alloc_ccbs - prev_alloc < addl_ccbs) {
259 blk_pointer = pci_alloc_consistent(adapter->pci_device,
260 blk_size, &blkp);
261 if (blk_pointer == NULL)
262 break;
263 blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp);
264 }
265 if (adapter->alloc_ccbs > prev_alloc) {
266 if (print_success)
267 blogic_notice("Allocated %d additional CCBs (total now %d)\n", adapter, adapter->alloc_ccbs - prev_alloc, adapter->alloc_ccbs);
268 return;
269 }
270 blogic_notice("Failed to allocate additional CCBs\n", adapter);
271 if (adapter->drvr_qdepth > adapter->alloc_ccbs - adapter->tgt_count) {
272 adapter->drvr_qdepth = adapter->alloc_ccbs - adapter->tgt_count;
273 adapter->scsi_host->can_queue = adapter->drvr_qdepth;
274 }
275}
276
277/*
278 blogic_alloc_ccb allocates a CCB from Host Adapter's free list,
279 allocating more memory from the Kernel if necessary. The Host Adapter's
280 Lock should already have been acquired by the caller.
281*/
282
283static struct blogic_ccb *blogic_alloc_ccb(struct blogic_adapter *adapter)
284{
285 static unsigned long serial;
286 struct blogic_ccb *ccb;
287 ccb = adapter->free_ccbs;
288 if (ccb != NULL) {
289 ccb->serial = ++serial;
290 adapter->free_ccbs = ccb->next;
291 ccb->next = NULL;
292 if (adapter->free_ccbs == NULL)
293 blogic_create_addlccbs(adapter, adapter->inc_ccbs,
294 true);
295 return ccb;
296 }
297 blogic_create_addlccbs(adapter, adapter->inc_ccbs, true);
298 ccb = adapter->free_ccbs;
299 if (ccb == NULL)
300 return NULL;
301 ccb->serial = ++serial;
302 adapter->free_ccbs = ccb->next;
303 ccb->next = NULL;
304 return ccb;
305}
306
307
308/*
309 blogic_dealloc_ccb deallocates a CCB, returning it to the Host Adapter's
310 free list. The Host Adapter's Lock should already have been acquired by the
311 caller.
312*/
313
314static void blogic_dealloc_ccb(struct blogic_ccb *ccb, int dma_unmap)
315{
316 struct blogic_adapter *adapter = ccb->adapter;
317
318 if (ccb->command != NULL)
319 scsi_dma_unmap(ccb->command);
320 if (dma_unmap)
321 pci_unmap_single(adapter->pci_device, ccb->sensedata,
322 ccb->sense_datalen, PCI_DMA_FROMDEVICE);
323
324 ccb->command = NULL;
325 ccb->status = BLOGIC_CCB_FREE;
326 ccb->next = adapter->free_ccbs;
327 adapter->free_ccbs = ccb;
328}
329
330
331/*
332 blogic_cmd sends the command opcode to adapter, optionally
333 providing paramlen bytes of param and receiving at most
334 replylen bytes of reply; any excess reply data is received but
335 discarded.
336
337 On success, this function returns the number of reply bytes read from
338 the Host Adapter (including any discarded data); on failure, it returns
339 -1 if the command was invalid, or -2 if a timeout occurred.
340
341 blogic_cmd is called exclusively during host adapter detection and
342 initialization, so performance and latency are not critical, and exclusive
343 access to the Host Adapter hardware is assumed. Once the host adapter and
344 driver are initialized, the only Host Adapter command that is issued is the
345 single byte Execute Mailbox Command operation code, which does not require
346 waiting for the Host Adapter Ready bit to be set in the Status Register.
347*/
348
349static int blogic_cmd(struct blogic_adapter *adapter, enum blogic_opcode opcode,
350 void *param, int paramlen, void *reply, int replylen)
351{
352 unsigned char *param_p = (unsigned char *) param;
353 unsigned char *reply_p = (unsigned char *) reply;
354 union blogic_stat_reg statusreg;
355 union blogic_int_reg intreg;
356 unsigned long processor_flag = 0;
357 int reply_b = 0, result;
358 long timeout;
359 /*
360 Clear out the Reply Data if provided.
361 */
362 if (replylen > 0)
363 memset(reply, 0, replylen);
364 /*
365 If the IRQ Channel has not yet been acquired, then interrupts
366 must be disabled while issuing host adapter commands since a
367 Command Complete interrupt could occur if the IRQ Channel was
368 previously enabled by another BusLogic Host Adapter or another
369 driver sharing the same IRQ Channel.
370 */
371 if (!adapter->irq_acquired)
372 local_irq_save(processor_flag);
373 /*
374 Wait for the Host Adapter Ready bit to be set and the
375 Command/Parameter Register Busy bit to be reset in the Status
376 Register.
377 */
378 timeout = 10000;
379 while (--timeout >= 0) {
380 statusreg.all = blogic_rdstatus(adapter);
381 if (statusreg.sr.adapter_ready && !statusreg.sr.cmd_param_busy)
382 break;
383 udelay(100);
384 }
385 if (timeout < 0) {
386 blogic_cmd_failure_reason =
387 "Timeout waiting for Host Adapter Ready";
388 result = -2;
389 goto done;
390 }
391 /*
392 Write the opcode to the Command/Parameter Register.
393 */
394 adapter->adapter_cmd_complete = false;
395 blogic_setcmdparam(adapter, opcode);
396 /*
397 Write any additional Parameter Bytes.
398 */
399 timeout = 10000;
400 while (paramlen > 0 && --timeout >= 0) {
401 /*
402 Wait 100 microseconds to give the Host Adapter enough
403 time to determine whether the last value written to the
404 Command/Parameter Register was valid or not. If the
405 Command Complete bit is set in the Interrupt Register,
406 then the Command Invalid bit in the Status Register will
407 be reset if the Operation Code or Parameter was valid
408 and the command has completed, or set if the Operation
409 Code or Parameter was invalid. If the Data In Register
410 Ready bit is set in the Status Register, then the
411 Operation Code was valid, and data is waiting to be read
412 back from the Host Adapter. Otherwise, wait for the
413 Command/Parameter Register Busy bit in the Status
414 Register to be reset.
415 */
416 udelay(100);
417 intreg.all = blogic_rdint(adapter);
418 statusreg.all = blogic_rdstatus(adapter);
419 if (intreg.ir.cmd_complete)
420 break;
421 if (adapter->adapter_cmd_complete)
422 break;
423 if (statusreg.sr.datain_ready)
424 break;
425 if (statusreg.sr.cmd_param_busy)
426 continue;
427 blogic_setcmdparam(adapter, *param_p++);
428 paramlen--;
429 }
430 if (timeout < 0) {
431 blogic_cmd_failure_reason =
432 "Timeout waiting for Parameter Acceptance";
433 result = -2;
434 goto done;
435 }
436 /*
437 The Modify I/O Address command does not cause a Command Complete
438 Interrupt.
439 */
440 if (opcode == BLOGIC_MOD_IOADDR) {
441 statusreg.all = blogic_rdstatus(adapter);
442 if (statusreg.sr.cmd_invalid) {
443 blogic_cmd_failure_reason =
444 "Modify I/O Address Invalid";
445 result = -1;
446 goto done;
447 }
448 if (blogic_global_options.trace_config)
449 blogic_notice("blogic_cmd(%02X) Status = %02X: " "(Modify I/O Address)\n", adapter, opcode, statusreg.all);
450 result = 0;
451 goto done;
452 }
453 /*
454 Select an appropriate timeout value for awaiting command completion.
455 */
456 switch (opcode) {
457 case BLOGIC_INQ_DEV0TO7:
458 case BLOGIC_INQ_DEV8TO15:
459 case BLOGIC_INQ_DEV:
460 /* Approximately 60 seconds. */
461 timeout = 60 * 10000;
462 break;
463 default:
464 /* Approximately 1 second. */
465 timeout = 10000;
466 break;
467 }
468 /*
469 Receive any Reply Bytes, waiting for either the Command
470 Complete bit to be set in the Interrupt Register, or for the
471 Interrupt Handler to set the Host Adapter Command Completed
472 bit in the Host Adapter structure.
473 */
474 while (--timeout >= 0) {
475 intreg.all = blogic_rdint(adapter);
476 statusreg.all = blogic_rdstatus(adapter);
477 if (intreg.ir.cmd_complete)
478 break;
479 if (adapter->adapter_cmd_complete)
480 break;
481 if (statusreg.sr.datain_ready) {
482 if (++reply_b <= replylen)
483 *reply_p++ = blogic_rddatain(adapter);
484 else
485 blogic_rddatain(adapter);
486 }
487 if (opcode == BLOGIC_FETCH_LOCALRAM &&
488 statusreg.sr.adapter_ready)
489 break;
490 udelay(100);
491 }
492 if (timeout < 0) {
493 blogic_cmd_failure_reason =
494 "Timeout waiting for Command Complete";
495 result = -2;
496 goto done;
497 }
498 /*
499 Clear any pending Command Complete Interrupt.
500 */
501 blogic_intreset(adapter);
502 /*
503 Provide tracing information if requested.
504 */
505 if (blogic_global_options.trace_config) {
506 int i;
507 blogic_notice("blogic_cmd(%02X) Status = %02X: %2d ==> %2d:",
508 adapter, opcode, statusreg.all, replylen,
509 reply_b);
510 if (replylen > reply_b)
511 replylen = reply_b;
512 for (i = 0; i < replylen; i++)
513 blogic_notice(" %02X", adapter,
514 ((unsigned char *) reply)[i]);
515 blogic_notice("\n", adapter);
516 }
517 /*
518 Process Command Invalid conditions.
519 */
520 if (statusreg.sr.cmd_invalid) {
521 /*
522 Some early BusLogic Host Adapters may not recover
523 properly from a Command Invalid condition, so if this
524 appears to be the case, a Soft Reset is issued to the
525 Host Adapter. Potentially invalid commands are never
526 attempted after Mailbox Initialization is performed,
527 so there should be no Host Adapter state lost by a
528 Soft Reset in response to a Command Invalid condition.
529 */
530 udelay(1000);
531 statusreg.all = blogic_rdstatus(adapter);
532 if (statusreg.sr.cmd_invalid || statusreg.sr.rsvd ||
533 statusreg.sr.datain_ready ||
534 statusreg.sr.cmd_param_busy ||
535 !statusreg.sr.adapter_ready ||
536 !statusreg.sr.init_reqd ||
537 statusreg.sr.diag_active ||
538 statusreg.sr.diag_failed) {
539 blogic_softreset(adapter);
540 udelay(1000);
541 }
542 blogic_cmd_failure_reason = "Command Invalid";
543 result = -1;
544 goto done;
545 }
546 /*
547 Handle Excess Parameters Supplied conditions.
548 */
549 if (paramlen > 0) {
550 blogic_cmd_failure_reason = "Excess Parameters Supplied";
551 result = -1;
552 goto done;
553 }
554 /*
555 Indicate the command completed successfully.
556 */
557 blogic_cmd_failure_reason = NULL;
558 result = reply_b;
559 /*
560 Restore the interrupt status if necessary and return.
561 */
562done:
563 if (!adapter->irq_acquired)
564 local_irq_restore(processor_flag);
565 return result;
566}
567
568
569/*
570 blogic_add_probeaddr_isa appends a single ISA I/O Address to the list
571 of I/O Address and Bus Probe Information to be checked for potential BusLogic
572 Host Adapters.
573*/
574
575static void __init blogic_add_probeaddr_isa(unsigned long io_addr)
576{
577 struct blogic_probeinfo *probeinfo;
578 if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS)
579 return;
580 probeinfo = &blogic_probeinfo_list[blogic_probeinfo_count++];
581 probeinfo->adapter_type = BLOGIC_MULTIMASTER;
582 probeinfo->adapter_bus_type = BLOGIC_ISA_BUS;
583 probeinfo->io_addr = io_addr;
584 probeinfo->pci_device = NULL;
585}
586
587
588/*
589 blogic_init_probeinfo_isa initializes the list of I/O Address and
590 Bus Probe Information to be checked for potential BusLogic SCSI Host Adapters
591 only from the list of standard BusLogic MultiMaster ISA I/O Addresses.
592*/
593
594static void __init blogic_init_probeinfo_isa(struct blogic_adapter *adapter)
595{
596 /*
597 If BusLogic Driver Options specifications requested that ISA
598 Bus Probes be inhibited, do not proceed further.
599 */
600 if (blogic_probe_options.noprobe_isa)
601 return;
602 /*
603 Append the list of standard BusLogic MultiMaster ISA I/O Addresses.
604 */
605 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe330)
606 blogic_add_probeaddr_isa(0x330);
607 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe334)
608 blogic_add_probeaddr_isa(0x334);
609 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe230)
610 blogic_add_probeaddr_isa(0x230);
611 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe234)
612 blogic_add_probeaddr_isa(0x234);
613 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe130)
614 blogic_add_probeaddr_isa(0x130);
615 if (!blogic_probe_options.limited_isa || blogic_probe_options.probe134)
616 blogic_add_probeaddr_isa(0x134);
617}
618
619
620#ifdef CONFIG_PCI
621
622
623/*
624 blogic_sort_probeinfo sorts a section of blogic_probeinfo_list in order
625 of increasing PCI Bus and Device Number.
626*/
627
628static void __init blogic_sort_probeinfo(struct blogic_probeinfo
629 *probeinfo_list, int probeinfo_cnt)
630{
631 int last_exchange = probeinfo_cnt - 1, bound, j;
632
633 while (last_exchange > 0) {
634 bound = last_exchange;
635 last_exchange = 0;
636 for (j = 0; j < bound; j++) {
637 struct blogic_probeinfo *probeinfo1 =
638 &probeinfo_list[j];
639 struct blogic_probeinfo *probeinfo2 =
640 &probeinfo_list[j + 1];
641 if (probeinfo1->bus > probeinfo2->bus ||
642 (probeinfo1->bus == probeinfo2->bus &&
643 (probeinfo1->dev > probeinfo2->dev))) {
644 struct blogic_probeinfo tmp_probeinfo;
645
646 memcpy(&tmp_probeinfo, probeinfo1,
647 sizeof(struct blogic_probeinfo));
648 memcpy(probeinfo1, probeinfo2,
649 sizeof(struct blogic_probeinfo));
650 memcpy(probeinfo2, &tmp_probeinfo,
651 sizeof(struct blogic_probeinfo));
652 last_exchange = j;
653 }
654 }
655 }
656}
657
658
659/*
660 blogic_init_mm_probeinfo initializes the list of I/O Address
661 and Bus Probe Information to be checked for potential BusLogic MultiMaster
662 SCSI Host Adapters by interrogating the PCI Configuration Space on PCI
663 machines as well as from the list of standard BusLogic MultiMaster ISA
664 I/O Addresses. It returns the number of PCI MultiMaster Host Adapters found.
665*/
666
667static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter)
668{
669 struct blogic_probeinfo *pr_probeinfo =
670 &blogic_probeinfo_list[blogic_probeinfo_count];
671 int nonpr_mmindex = blogic_probeinfo_count + 1;
672 int nonpr_mmcount = 0, mmcount = 0;
673 bool force_scan_order = false;
674 bool force_scan_order_checked = false;
675 bool addr_seen[6];
676 struct pci_dev *pci_device = NULL;
677 int i;
678 if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS)
679 return 0;
680 blogic_probeinfo_count++;
681 for (i = 0; i < 6; i++)
682 addr_seen[i] = false;
683 /*
684 Iterate over the MultiMaster PCI Host Adapters. For each
685 enumerated host adapter, determine whether its ISA Compatible
686 I/O Port is enabled and if so, whether it is assigned the
687 Primary I/O Address. A host adapter that is assigned the
688 Primary I/O Address will always be the preferred boot device.
689 The MultiMaster BIOS will first recognize a host adapter at
690 the Primary I/O Address, then any other PCI host adapters,
691 and finally any host adapters located at the remaining
692 standard ISA I/O Addresses. When a PCI host adapter is found
693 with its ISA Compatible I/O Port enabled, a command is issued
694 to disable the ISA Compatible I/O Port, and it is noted that the
695 particular standard ISA I/O Address need not be probed.
696 */
697 pr_probeinfo->io_addr = 0;
698 while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
699 PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
700 pci_device)) != NULL) {
701 struct blogic_adapter *host_adapter = adapter;
702 struct blogic_adapter_info adapter_info;
703 enum blogic_isa_ioport mod_ioaddr_req;
704 unsigned char bus;
705 unsigned char device;
706 unsigned int irq_ch;
707 unsigned long base_addr0;
708 unsigned long base_addr1;
709 unsigned long io_addr;
710 unsigned long pci_addr;
711
712 if (pci_enable_device(pci_device))
713 continue;
714
715 if (pci_set_dma_mask(pci_device, DMA_BIT_MASK(32)))
716 continue;
717
718 bus = pci_device->bus->number;
719 device = pci_device->devfn >> 3;
720 irq_ch = pci_device->irq;
721 io_addr = base_addr0 = pci_resource_start(pci_device, 0);
722 pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
723
724 if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
725 blogic_err("BusLogic: Base Address0 0x%X not I/O for " "MultiMaster Host Adapter\n", NULL, base_addr0);
726 blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
727 continue;
728 }
729 if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
730 blogic_err("BusLogic: Base Address1 0x%X not Memory for " "MultiMaster Host Adapter\n", NULL, base_addr1);
731 blogic_err("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, bus, device, pci_addr);
732 continue;
733 }
734 if (irq_ch == 0) {
735 blogic_err("BusLogic: IRQ Channel %d invalid for " "MultiMaster Host Adapter\n", NULL, irq_ch);
736 blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
737 continue;
738 }
739 if (blogic_global_options.trace_probe) {
740 blogic_notice("BusLogic: PCI MultiMaster Host Adapter " "detected at\n", NULL);
741 blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address " "0x%X PCI Address 0x%X\n", NULL, bus, device, io_addr, pci_addr);
742 }
743 /*
744 Issue the Inquire PCI Host Adapter Information command to determine
745 the ISA Compatible I/O Port. If the ISA Compatible I/O Port is
746 known and enabled, note that the particular Standard ISA I/O
747 Address should not be probed.
748 */
749 host_adapter->io_addr = io_addr;
750 blogic_intreset(host_adapter);
751 if (blogic_cmd(host_adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
752 &adapter_info, sizeof(adapter_info)) ==
753 sizeof(adapter_info)) {
754 if (adapter_info.isa_port < 6)
755 addr_seen[adapter_info.isa_port] = true;
756 } else
757 adapter_info.isa_port = BLOGIC_IO_DISABLE;
758 /*
759 Issue the Modify I/O Address command to disable the
760 ISA Compatible I/O Port. On PCI Host Adapters, the
761 Modify I/O Address command allows modification of the
762 ISA compatible I/O Address that the Host Adapter
763 responds to; it does not affect the PCI compliant
764 I/O Address assigned at system initialization.
765 */
766 mod_ioaddr_req = BLOGIC_IO_DISABLE;
767 blogic_cmd(host_adapter, BLOGIC_MOD_IOADDR, &mod_ioaddr_req,
768 sizeof(mod_ioaddr_req), NULL, 0);
769 /*
770 For the first MultiMaster Host Adapter enumerated,
771 issue the Fetch Host Adapter Local RAM command to read
772 byte 45 of the AutoSCSI area, for the setting of the
773 "Use Bus And Device # For PCI Scanning Seq." option.
774 Issue the Inquire Board ID command since this option is
775 only valid for the BT-948/958/958D.
776 */
777 if (!force_scan_order_checked) {
778 struct blogic_fetch_localram fetch_localram;
779 struct blogic_autoscsi_byte45 autoscsi_byte45;
780 struct blogic_board_id id;
781
782 fetch_localram.offset = BLOGIC_AUTOSCSI_BASE + 45;
783 fetch_localram.count = sizeof(autoscsi_byte45);
784 blogic_cmd(host_adapter, BLOGIC_FETCH_LOCALRAM,
785 &fetch_localram, sizeof(fetch_localram),
786 &autoscsi_byte45,
787 sizeof(autoscsi_byte45));
788 blogic_cmd(host_adapter, BLOGIC_GET_BOARD_ID, NULL, 0,
789 &id, sizeof(id));
790 if (id.fw_ver_digit1 == '5')
791 force_scan_order =
792 autoscsi_byte45.force_scan_order;
793 force_scan_order_checked = true;
794 }
795 /*
796 Determine whether this MultiMaster Host Adapter has its
797 ISA Compatible I/O Port enabled and is assigned the
798 Primary I/O Address. If it does, then it is the Primary
799 MultiMaster Host Adapter and must be recognized first.
800 If it does not, then it is added to the list for probing
801 after any Primary MultiMaster Host Adapter is probed.
802 */
803 if (adapter_info.isa_port == BLOGIC_IO_330) {
804 pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER;
805 pr_probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
806 pr_probeinfo->io_addr = io_addr;
807 pr_probeinfo->pci_addr = pci_addr;
808 pr_probeinfo->bus = bus;
809 pr_probeinfo->dev = device;
810 pr_probeinfo->irq_ch = irq_ch;
811 pr_probeinfo->pci_device = pci_dev_get(pci_device);
812 mmcount++;
813 } else if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
814 struct blogic_probeinfo *probeinfo =
815 &blogic_probeinfo_list[blogic_probeinfo_count++];
816 probeinfo->adapter_type = BLOGIC_MULTIMASTER;
817 probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
818 probeinfo->io_addr = io_addr;
819 probeinfo->pci_addr = pci_addr;
820 probeinfo->bus = bus;
821 probeinfo->dev = device;
822 probeinfo->irq_ch = irq_ch;
823 probeinfo->pci_device = pci_dev_get(pci_device);
824 nonpr_mmcount++;
825 mmcount++;
826 } else
827 blogic_warn("BusLogic: Too many Host Adapters " "detected\n", NULL);
828 }
829 /*
830 If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq."
831 option is ON for the first enumerated MultiMaster Host Adapter,
832 and if that host adapter is a BT-948/958/958D, then the
833 MultiMaster BIOS will recognize MultiMaster Host Adapters in
834 the order of increasing PCI Bus and Device Number. In that case,
835 sort the probe information into the same order the BIOS uses.
836 If this option is OFF, then the MultiMaster BIOS will recognize
837 MultiMaster Host Adapters in the order they are enumerated by
838 the PCI BIOS, and hence no sorting is necessary.
839 */
840 if (force_scan_order)
841 blogic_sort_probeinfo(&blogic_probeinfo_list[nonpr_mmindex],
842 nonpr_mmcount);
843 /*
844 If no PCI MultiMaster Host Adapter is assigned the Primary
845 I/O Address, then the Primary I/O Address must be probed
846 explicitly before any PCI host adapters are probed.
847 */
848 if (!blogic_probe_options.noprobe_isa)
849 if (pr_probeinfo->io_addr == 0 &&
850 (!blogic_probe_options.limited_isa ||
851 blogic_probe_options.probe330)) {
852 pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER;
853 pr_probeinfo->adapter_bus_type = BLOGIC_ISA_BUS;
854 pr_probeinfo->io_addr = 0x330;
855 }
856 /*
857 Append the list of standard BusLogic MultiMaster ISA I/O Addresses,
858 omitting the Primary I/O Address which has already been handled.
859 */
860 if (!blogic_probe_options.noprobe_isa) {
861 if (!addr_seen[1] &&
862 (!blogic_probe_options.limited_isa ||
863 blogic_probe_options.probe334))
864 blogic_add_probeaddr_isa(0x334);
865 if (!addr_seen[2] &&
866 (!blogic_probe_options.limited_isa ||
867 blogic_probe_options.probe230))
868 blogic_add_probeaddr_isa(0x230);
869 if (!addr_seen[3] &&
870 (!blogic_probe_options.limited_isa ||
871 blogic_probe_options.probe234))
872 blogic_add_probeaddr_isa(0x234);
873 if (!addr_seen[4] &&
874 (!blogic_probe_options.limited_isa ||
875 blogic_probe_options.probe130))
876 blogic_add_probeaddr_isa(0x130);
877 if (!addr_seen[5] &&
878 (!blogic_probe_options.limited_isa ||
879 blogic_probe_options.probe134))
880 blogic_add_probeaddr_isa(0x134);
881 }
882 /*
883 Iterate over the older non-compliant MultiMaster PCI Host Adapters,
884 noting the PCI bus location and assigned IRQ Channel.
885 */
886 pci_device = NULL;
887 while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
888 PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
889 pci_device)) != NULL) {
890 unsigned char bus;
891 unsigned char device;
892 unsigned int irq_ch;
893 unsigned long io_addr;
894
895 if (pci_enable_device(pci_device))
896 continue;
897
898 if (pci_set_dma_mask(pci_device, DMA_BIT_MASK(32)))
899 continue;
900
901 bus = pci_device->bus->number;
902 device = pci_device->devfn >> 3;
903 irq_ch = pci_device->irq;
904 io_addr = pci_resource_start(pci_device, 0);
905
906 if (io_addr == 0 || irq_ch == 0)
907 continue;
908 for (i = 0; i < blogic_probeinfo_count; i++) {
909 struct blogic_probeinfo *probeinfo =
910 &blogic_probeinfo_list[i];
911 if (probeinfo->io_addr == io_addr &&
912 probeinfo->adapter_type == BLOGIC_MULTIMASTER) {
913 probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
914 probeinfo->pci_addr = 0;
915 probeinfo->bus = bus;
916 probeinfo->dev = device;
917 probeinfo->irq_ch = irq_ch;
918 probeinfo->pci_device = pci_dev_get(pci_device);
919 break;
920 }
921 }
922 }
923 return mmcount;
924}
925
926
927/*
928 blogic_init_fp_probeinfo initializes the list of I/O Address
929 and Bus Probe Information to be checked for potential BusLogic FlashPoint
930 Host Adapters by interrogating the PCI Configuration Space. It returns the
931 number of FlashPoint Host Adapters found.
932*/
933
934static int __init blogic_init_fp_probeinfo(struct blogic_adapter *adapter)
935{
936 int fpindex = blogic_probeinfo_count, fpcount = 0;
937 struct pci_dev *pci_device = NULL;
938 /*
939 Interrogate PCI Configuration Space for any FlashPoint Host Adapters.
940 */
941 while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
942 PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
943 pci_device)) != NULL) {
944 unsigned char bus;
945 unsigned char device;
946 unsigned int irq_ch;
947 unsigned long base_addr0;
948 unsigned long base_addr1;
949 unsigned long io_addr;
950 unsigned long pci_addr;
951
952 if (pci_enable_device(pci_device))
953 continue;
954
955 if (pci_set_dma_mask(pci_device, DMA_BIT_MASK(32)))
956 continue;
957
958 bus = pci_device->bus->number;
959 device = pci_device->devfn >> 3;
960 irq_ch = pci_device->irq;
961 io_addr = base_addr0 = pci_resource_start(pci_device, 0);
962 pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
963#ifdef CONFIG_SCSI_FLASHPOINT
964 if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
965 blogic_err("BusLogic: Base Address0 0x%X not I/O for " "FlashPoint Host Adapter\n", NULL, base_addr0);
966 blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
967 continue;
968 }
969 if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
970 blogic_err("BusLogic: Base Address1 0x%X not Memory for " "FlashPoint Host Adapter\n", NULL, base_addr1);
971 blogic_err("at PCI Bus %d Device %d PCI Address 0x%X\n", NULL, bus, device, pci_addr);
972 continue;
973 }
974 if (irq_ch == 0) {
975 blogic_err("BusLogic: IRQ Channel %d invalid for " "FlashPoint Host Adapter\n", NULL, irq_ch);
976 blogic_err("at PCI Bus %d Device %d I/O Address 0x%X\n", NULL, bus, device, io_addr);
977 continue;
978 }
979 if (blogic_global_options.trace_probe) {
980 blogic_notice("BusLogic: FlashPoint Host Adapter " "detected at\n", NULL);
981 blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address " "0x%X PCI Address 0x%X\n", NULL, bus, device, io_addr, pci_addr);
982 }
983 if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
984 struct blogic_probeinfo *probeinfo =
985 &blogic_probeinfo_list[blogic_probeinfo_count++];
986 probeinfo->adapter_type = BLOGIC_FLASHPOINT;
987 probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
988 probeinfo->io_addr = io_addr;
989 probeinfo->pci_addr = pci_addr;
990 probeinfo->bus = bus;
991 probeinfo->dev = device;
992 probeinfo->irq_ch = irq_ch;
993 probeinfo->pci_device = pci_dev_get(pci_device);
994 fpcount++;
995 } else
996 blogic_warn("BusLogic: Too many Host Adapters " "detected\n", NULL);
997#else
998 blogic_err("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", NULL, bus, device);
999 blogic_err("BusLogic: I/O Address 0x%X PCI Address 0x%X, irq %d, " "but FlashPoint\n", NULL, io_addr, pci_addr, irq_ch);
1000 blogic_err("BusLogic: support was omitted in this kernel " "configuration.\n", NULL);
1001#endif
1002 }
1003 /*
1004 The FlashPoint BIOS will scan for FlashPoint Host Adapters in the order of
1005 increasing PCI Bus and Device Number, so sort the probe information into
1006 the same order the BIOS uses.
1007 */
1008 blogic_sort_probeinfo(&blogic_probeinfo_list[fpindex], fpcount);
1009 return fpcount;
1010}
1011
1012
1013/*
1014 blogic_init_probeinfo_list initializes the list of I/O Address and Bus
1015 Probe Information to be checked for potential BusLogic SCSI Host Adapters by
1016 interrogating the PCI Configuration Space on PCI machines as well as from the
1017 list of standard BusLogic MultiMaster ISA I/O Addresses. By default, if both
1018 FlashPoint and PCI MultiMaster Host Adapters are present, this driver will
1019 probe for FlashPoint Host Adapters first unless the BIOS primary disk is
1020 controlled by the first PCI MultiMaster Host Adapter, in which case
1021 MultiMaster Host Adapters will be probed first. The BusLogic Driver Options
1022 specifications "MultiMasterFirst" and "FlashPointFirst" can be used to force
1023 a particular probe order.
1024*/
1025
1026static void __init blogic_init_probeinfo_list(struct blogic_adapter *adapter)
1027{
1028 /*
1029 If a PCI BIOS is present, interrogate it for MultiMaster and
1030 FlashPoint Host Adapters; otherwise, default to the standard
1031 ISA MultiMaster probe.
1032 */
1033 if (!blogic_probe_options.noprobe_pci) {
1034 if (blogic_probe_options.multimaster_first) {
1035 blogic_init_mm_probeinfo(adapter);
1036 blogic_init_fp_probeinfo(adapter);
1037 } else if (blogic_probe_options.flashpoint_first) {
1038 blogic_init_fp_probeinfo(adapter);
1039 blogic_init_mm_probeinfo(adapter);
1040 } else {
1041 int fpcount = blogic_init_fp_probeinfo(adapter);
1042 int mmcount = blogic_init_mm_probeinfo(adapter);
1043 if (fpcount > 0 && mmcount > 0) {
1044 struct blogic_probeinfo *probeinfo =
1045 &blogic_probeinfo_list[fpcount];
1046 struct blogic_adapter *myadapter = adapter;
1047 struct blogic_fetch_localram fetch_localram;
1048 struct blogic_bios_drvmap d0_mapbyte;
1049
1050 while (probeinfo->adapter_bus_type !=
1051 BLOGIC_PCI_BUS)
1052 probeinfo++;
1053 myadapter->io_addr = probeinfo->io_addr;
1054 fetch_localram.offset =
1055 BLOGIC_BIOS_BASE + BLOGIC_BIOS_DRVMAP;
1056 fetch_localram.count = sizeof(d0_mapbyte);
1057 blogic_cmd(myadapter, BLOGIC_FETCH_LOCALRAM,
1058 &fetch_localram,
1059 sizeof(fetch_localram),
1060 &d0_mapbyte,
1061 sizeof(d0_mapbyte));
1062 /*
1063 If the Map Byte for BIOS Drive 0 indicates
1064 that BIOS Drive 0 is controlled by this
1065 PCI MultiMaster Host Adapter, then reverse
1066 the probe order so that MultiMaster Host
1067 Adapters are probed before FlashPoint Host
1068 Adapters.
1069 */
1070 if (d0_mapbyte.diskgeom != BLOGIC_BIOS_NODISK) {
1071 struct blogic_probeinfo saved_probeinfo[BLOGIC_MAX_ADAPTERS];
1072 int mmcount = blogic_probeinfo_count - fpcount;
1073
1074 memcpy(saved_probeinfo,
1075 blogic_probeinfo_list,
1076 blogic_probeinfo_count * sizeof(struct blogic_probeinfo));
1077 memcpy(&blogic_probeinfo_list[0],
1078 &saved_probeinfo[fpcount],
1079 mmcount * sizeof(struct blogic_probeinfo));
1080 memcpy(&blogic_probeinfo_list[mmcount],
1081 &saved_probeinfo[0],
1082 fpcount * sizeof(struct blogic_probeinfo));
1083 }
1084 }
1085 }
1086 } else {
1087 blogic_init_probeinfo_isa(adapter);
1088 }
1089}
1090
1091
1092#else
1093#define blogic_init_probeinfo_list(adapter) \
1094 blogic_init_probeinfo_isa(adapter)
1095#endif /* CONFIG_PCI */
1096
1097
1098/*
1099 blogic_failure prints a standardized error message, and then returns false.
1100*/
1101
1102static bool blogic_failure(struct blogic_adapter *adapter, char *msg)
1103{
1104 blogic_announce_drvr(adapter);
1105 if (adapter->adapter_bus_type == BLOGIC_PCI_BUS) {
1106 blogic_err("While configuring BusLogic PCI Host Adapter at\n",
1107 adapter);
1108 blogic_err("Bus %d Device %d I/O Address 0x%X PCI Address 0x%X:\n", adapter, adapter->bus, adapter->dev, adapter->io_addr, adapter->pci_addr);
1109 } else
1110 blogic_err("While configuring BusLogic Host Adapter at " "I/O Address 0x%X:\n", adapter, adapter->io_addr);
1111 blogic_err("%s FAILED - DETACHING\n", adapter, msg);
1112 if (blogic_cmd_failure_reason != NULL)
1113 blogic_err("ADDITIONAL FAILURE INFO - %s\n", adapter,
1114 blogic_cmd_failure_reason);
1115 return false;
1116}
1117
1118
1119/*
1120 blogic_probe probes for a BusLogic Host Adapter.
1121*/
1122
1123static bool __init blogic_probe(struct blogic_adapter *adapter)
1124{
1125 union blogic_stat_reg statusreg;
1126 union blogic_int_reg intreg;
1127 union blogic_geo_reg georeg;
1128 /*
1129 FlashPoint Host Adapters are Probed by the FlashPoint SCCB Manager.
1130 */
1131 if (blogic_flashpoint_type(adapter)) {
1132 struct fpoint_info *fpinfo = &adapter->fpinfo;
1133 fpinfo->base_addr = (u32) adapter->io_addr;
1134 fpinfo->irq_ch = adapter->irq_ch;
1135 fpinfo->present = false;
1136 if (!(FlashPoint_ProbeHostAdapter(fpinfo) == 0 &&
1137 fpinfo->present)) {
1138 blogic_err("BusLogic: FlashPoint Host Adapter detected at " "PCI Bus %d Device %d\n", adapter, adapter->bus, adapter->dev);
1139 blogic_err("BusLogic: I/O Address 0x%X PCI Address 0x%X, " "but FlashPoint\n", adapter, adapter->io_addr, adapter->pci_addr);
1140 blogic_err("BusLogic: Probe Function failed to validate it.\n", adapter);
1141 return false;
1142 }
1143 if (blogic_global_options.trace_probe)
1144 blogic_notice("BusLogic_Probe(0x%X): FlashPoint Found\n", adapter, adapter->io_addr);
1145 /*
1146 Indicate the Host Adapter Probe completed successfully.
1147 */
1148 return true;
1149 }
1150 /*
1151 Read the Status, Interrupt, and Geometry Registers to test if there are I/O
1152 ports that respond, and to check the values to determine if they are from a
1153 BusLogic Host Adapter. A nonexistent I/O port will return 0xFF, in which
1154 case there is definitely no BusLogic Host Adapter at this base I/O Address.
1155 The test here is a subset of that used by the BusLogic Host Adapter BIOS.
1156 */
1157 statusreg.all = blogic_rdstatus(adapter);
1158 intreg.all = blogic_rdint(adapter);
1159 georeg.all = blogic_rdgeom(adapter);
1160 if (blogic_global_options.trace_probe)
1161 blogic_notice("BusLogic_Probe(0x%X): Status 0x%02X, Interrupt 0x%02X, " "Geometry 0x%02X\n", adapter, adapter->io_addr, statusreg.all, intreg.all, georeg.all);
1162 if (statusreg.all == 0 || statusreg.sr.diag_active ||
1163 statusreg.sr.cmd_param_busy || statusreg.sr.rsvd ||
1164 statusreg.sr.cmd_invalid || intreg.ir.rsvd != 0)
1165 return false;
1166 /*
1167 Check the undocumented Geometry Register to test if there is
1168 an I/O port that responded. Adaptec Host Adapters do not
1169 implement the Geometry Register, so this test helps serve to
1170 avoid incorrectly recognizing an Adaptec 1542A or 1542B as a
1171 BusLogic. Unfortunately, the Adaptec 1542C series does respond
1172 to the Geometry Register I/O port, but it will be rejected
1173 later when the Inquire Extended Setup Information command is
1174 issued in blogic_checkadapter. The AMI FastDisk Host Adapter
1175 is a BusLogic clone that implements the same interface as
1176 earlier BusLogic Host Adapters, including the undocumented
1177 commands, and is therefore supported by this driver. However,
1178 the AMI FastDisk always returns 0x00 upon reading the Geometry
1179 Register, so the extended translation option should always be
1180 left disabled on the AMI FastDisk.
1181 */
1182 if (georeg.all == 0xFF)
1183 return false;
1184 /*
1185 Indicate the Host Adapter Probe completed successfully.
1186 */
1187 return true;
1188}
1189
1190
1191/*
1192 blogic_hwreset issues a Hardware Reset to the Host Adapter
1193 and waits for Host Adapter Diagnostics to complete. If hard_reset is true, a
1194 Hard Reset is performed which also initiates a SCSI Bus Reset. Otherwise, a
1195 Soft Reset is performed which only resets the Host Adapter without forcing a
1196 SCSI Bus Reset.
1197*/
1198
1199static bool blogic_hwreset(struct blogic_adapter *adapter, bool hard_reset)
1200{
1201 union blogic_stat_reg statusreg;
1202 int timeout;
1203 /*
1204 FlashPoint Host Adapters are Hard Reset by the FlashPoint
1205 SCCB Manager.
1206 */
1207 if (blogic_flashpoint_type(adapter)) {
1208 struct fpoint_info *fpinfo = &adapter->fpinfo;
1209 fpinfo->softreset = !hard_reset;
1210 fpinfo->report_underrun = true;
1211 adapter->cardhandle =
1212 FlashPoint_HardwareResetHostAdapter(fpinfo);
1213 if (adapter->cardhandle == (void *)FPOINT_BADCARD_HANDLE)
1214 return false;
1215 /*
1216 Indicate the Host Adapter Hard Reset completed successfully.
1217 */
1218 return true;
1219 }
1220 /*
1221 Issue a Hard Reset or Soft Reset Command to the Host Adapter.
1222 The Host Adapter should respond by setting Diagnostic Active in
1223 the Status Register.
1224 */
1225 if (hard_reset)
1226 blogic_hardreset(adapter);
1227 else
1228 blogic_softreset(adapter);
1229 /*
1230 Wait until Diagnostic Active is set in the Status Register.
1231 */
1232 timeout = 5 * 10000;
1233 while (--timeout >= 0) {
1234 statusreg.all = blogic_rdstatus(adapter);
1235 if (statusreg.sr.diag_active)
1236 break;
1237 udelay(100);
1238 }
1239 if (blogic_global_options.trace_hw_reset)
1240 blogic_notice("BusLogic_HardwareReset(0x%X): Diagnostic Active, " "Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
1241 if (timeout < 0)
1242 return false;
1243 /*
1244 Wait 100 microseconds to allow completion of any initial diagnostic
1245 activity which might leave the contents of the Status Register
1246 unpredictable.
1247 */
1248 udelay(100);
1249 /*
1250 Wait until Diagnostic Active is reset in the Status Register.
1251 */
1252 timeout = 10 * 10000;
1253 while (--timeout >= 0) {
1254 statusreg.all = blogic_rdstatus(adapter);
1255 if (!statusreg.sr.diag_active)
1256 break;
1257 udelay(100);
1258 }
1259 if (blogic_global_options.trace_hw_reset)
1260 blogic_notice("BusLogic_HardwareReset(0x%X): Diagnostic Completed, " "Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
1261 if (timeout < 0)
1262 return false;
1263 /*
1264 Wait until at least one of the Diagnostic Failure, Host Adapter
1265 Ready, or Data In Register Ready bits is set in the Status Register.
1266 */
1267 timeout = 10000;
1268 while (--timeout >= 0) {
1269 statusreg.all = blogic_rdstatus(adapter);
1270 if (statusreg.sr.diag_failed || statusreg.sr.adapter_ready ||
1271 statusreg.sr.datain_ready)
1272 break;
1273 udelay(100);
1274 }
1275 if (blogic_global_options.trace_hw_reset)
1276 blogic_notice("BusLogic_HardwareReset(0x%X): Host Adapter Ready, " "Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
1277 if (timeout < 0)
1278 return false;
1279 /*
1280 If Diagnostic Failure is set or Host Adapter Ready is reset,
1281 then an error occurred during the Host Adapter diagnostics.
1282 If Data In Register Ready is set, then there is an Error Code
1283 available.
1284 */
1285 if (statusreg.sr.diag_failed || !statusreg.sr.adapter_ready) {
1286 blogic_cmd_failure_reason = NULL;
1287 blogic_failure(adapter, "HARD RESET DIAGNOSTICS");
1288 blogic_err("HOST ADAPTER STATUS REGISTER = %02X\n", adapter,
1289 statusreg.all);
1290 if (statusreg.sr.datain_ready)
1291 blogic_err("HOST ADAPTER ERROR CODE = %d\n", adapter,
1292 blogic_rddatain(adapter));
1293 return false;
1294 }
1295 /*
1296 Indicate the Host Adapter Hard Reset completed successfully.
1297 */
1298 return true;
1299}
1300
1301
1302/*
1303 blogic_checkadapter checks to be sure this really is a BusLogic
1304 Host Adapter.
1305*/
1306
1307static bool __init blogic_checkadapter(struct blogic_adapter *adapter)
1308{
1309 struct blogic_ext_setup ext_setupinfo;
1310 unsigned char req_replylen;
1311 bool result = true;
1312 /*
1313 FlashPoint Host Adapters do not require this protection.
1314 */
1315 if (blogic_flashpoint_type(adapter))
1316 return true;
1317 /*
1318 Issue the Inquire Extended Setup Information command. Only genuine
1319 BusLogic Host Adapters and true clones support this command.
1320 Adaptec 1542C series Host Adapters that respond to the Geometry
1321 Register I/O port will fail this command.
1322 */
1323 req_replylen = sizeof(ext_setupinfo);
1324 if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen,
1325 sizeof(req_replylen), &ext_setupinfo,
1326 sizeof(ext_setupinfo)) != sizeof(ext_setupinfo))
1327 result = false;
1328 /*
1329 Provide tracing information if requested and return.
1330 */
1331 if (blogic_global_options.trace_probe)
1332 blogic_notice("BusLogic_Check(0x%X): MultiMaster %s\n", adapter,
1333 adapter->io_addr,
1334 (result ? "Found" : "Not Found"));
1335 return result;
1336}
1337
1338
1339/*
1340 blogic_rdconfig reads the Configuration Information
1341 from Host Adapter and initializes the Host Adapter structure.
1342*/
1343
1344static bool __init blogic_rdconfig(struct blogic_adapter *adapter)
1345{
1346 struct blogic_board_id id;
1347 struct blogic_config config;
1348 struct blogic_setup_info setupinfo;
1349 struct blogic_ext_setup ext_setupinfo;
1350 unsigned char model[5];
1351 unsigned char fw_ver_digit3;
1352 unsigned char fw_ver_letter;
1353 struct blogic_adapter_info adapter_info;
1354 struct blogic_fetch_localram fetch_localram;
1355 struct blogic_autoscsi autoscsi;
1356 union blogic_geo_reg georeg;
1357 unsigned char req_replylen;
1358 unsigned char *tgt, ch;
1359 int tgt_id, i;
1360 /*
1361 Configuration Information for FlashPoint Host Adapters is
1362 provided in the fpoint_info structure by the FlashPoint
1363 SCCB Manager's Probe Function. Initialize fields in the
1364 Host Adapter structure from the fpoint_info structure.
1365 */
1366 if (blogic_flashpoint_type(adapter)) {
1367 struct fpoint_info *fpinfo = &adapter->fpinfo;
1368 tgt = adapter->model;
1369 *tgt++ = 'B';
1370 *tgt++ = 'T';
1371 *tgt++ = '-';
1372 for (i = 0; i < sizeof(fpinfo->model); i++)
1373 *tgt++ = fpinfo->model[i];
1374 *tgt++ = '\0';
1375 strcpy(adapter->fw_ver, FLASHPOINT_FW_VER);
1376 adapter->scsi_id = fpinfo->scsi_id;
1377 adapter->ext_trans_enable = fpinfo->ext_trans_enable;
1378 adapter->parity = fpinfo->parity;
1379 adapter->reset_enabled = !fpinfo->softreset;
1380 adapter->level_int = true;
1381 adapter->wide = fpinfo->wide;
1382 adapter->differential = false;
1383 adapter->scam = true;
1384 adapter->ultra = true;
1385 adapter->ext_lun = true;
1386 adapter->terminfo_valid = true;
1387 adapter->low_term = fpinfo->low_term;
1388 adapter->high_term = fpinfo->high_term;
1389 adapter->scam_enabled = fpinfo->scam_enabled;
1390 adapter->scam_lev2 = fpinfo->scam_lev2;
1391 adapter->drvr_sglimit = BLOGIC_SG_LIMIT;
1392 adapter->maxdev = (adapter->wide ? 16 : 8);
1393 adapter->maxlun = 32;
1394 adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE;
1395 adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE;
1396 adapter->drvr_qdepth = 255;
1397 adapter->adapter_qdepth = adapter->drvr_qdepth;
1398 adapter->sync_ok = fpinfo->sync_ok;
1399 adapter->fast_ok = fpinfo->fast_ok;
1400 adapter->ultra_ok = fpinfo->ultra_ok;
1401 adapter->wide_ok = fpinfo->wide_ok;
1402 adapter->discon_ok = fpinfo->discon_ok;
1403 adapter->tagq_ok = 0xFFFF;
1404 goto common;
1405 }
1406 /*
1407 Issue the Inquire Board ID command.
1408 */
1409 if (blogic_cmd(adapter, BLOGIC_GET_BOARD_ID, NULL, 0, &id,
1410 sizeof(id)) != sizeof(id))
1411 return blogic_failure(adapter, "INQUIRE BOARD ID");
1412 /*
1413 Issue the Inquire Configuration command.
1414 */
1415 if (blogic_cmd(adapter, BLOGIC_INQ_CONFIG, NULL, 0, &config,
1416 sizeof(config))
1417 != sizeof(config))
1418 return blogic_failure(adapter, "INQUIRE CONFIGURATION");
1419 /*
1420 Issue the Inquire Setup Information command.
1421 */
1422 req_replylen = sizeof(setupinfo);
1423 if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen,
1424 sizeof(req_replylen), &setupinfo,
1425 sizeof(setupinfo)) != sizeof(setupinfo))
1426 return blogic_failure(adapter, "INQUIRE SETUP INFORMATION");
1427 /*
1428 Issue the Inquire Extended Setup Information command.
1429 */
1430 req_replylen = sizeof(ext_setupinfo);
1431 if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen,
1432 sizeof(req_replylen), &ext_setupinfo,
1433 sizeof(ext_setupinfo)) != sizeof(ext_setupinfo))
1434 return blogic_failure(adapter,
1435 "INQUIRE EXTENDED SETUP INFORMATION");
1436 /*
1437 Issue the Inquire Firmware Version 3rd Digit command.
1438 */
1439 fw_ver_digit3 = '\0';
1440 if (id.fw_ver_digit1 > '0')
1441 if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_D3, NULL, 0,
1442 &fw_ver_digit3,
1443 sizeof(fw_ver_digit3)) != sizeof(fw_ver_digit3))
1444 return blogic_failure(adapter,
1445 "INQUIRE FIRMWARE 3RD DIGIT");
1446 /*
1447 Issue the Inquire Host Adapter Model Number command.
1448 */
1449 if (ext_setupinfo.bus_type == 'A' && id.fw_ver_digit1 == '2')
1450 /* BusLogic BT-542B ISA 2.xx */
1451 strcpy(model, "542B");
1452 else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '2' &&
1453 (id.fw_ver_digit2 <= '1' || (id.fw_ver_digit2 == '2' &&
1454 fw_ver_digit3 == '0')))
1455 /* BusLogic BT-742A EISA 2.1x or 2.20 */
1456 strcpy(model, "742A");
1457 else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '0')
1458 /* AMI FastDisk EISA Series 441 0.x */
1459 strcpy(model, "747A");
1460 else {
1461 req_replylen = sizeof(model);
1462 if (blogic_cmd(adapter, BLOGIC_INQ_MODELNO, &req_replylen,
1463 sizeof(req_replylen), &model,
1464 sizeof(model)) != sizeof(model))
1465 return blogic_failure(adapter,
1466 "INQUIRE HOST ADAPTER MODEL NUMBER");
1467 }
1468 /*
1469 BusLogic MultiMaster Host Adapters can be identified by their
1470 model number and the major version number of their firmware
1471 as follows:
1472
1473 5.xx BusLogic "W" Series Host Adapters:
1474 BT-948/958/958D
1475 4.xx BusLogic "C" Series Host Adapters:
1476 BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF
1477 3.xx BusLogic "S" Series Host Adapters:
1478 BT-747S/747D/757S/757D/445S/545S/542D
1479 BT-542B/742A (revision H)
1480 2.xx BusLogic "A" Series Host Adapters:
1481 BT-542B/742A (revision G and below)
1482 0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter
1483 */
1484 /*
1485 Save the Model Name and Host Adapter Name in the Host Adapter
1486 structure.
1487 */
1488 tgt = adapter->model;
1489 *tgt++ = 'B';
1490 *tgt++ = 'T';
1491 *tgt++ = '-';
1492 for (i = 0; i < sizeof(model); i++) {
1493 ch = model[i];
1494 if (ch == ' ' || ch == '\0')
1495 break;
1496 *tgt++ = ch;
1497 }
1498 *tgt++ = '\0';
1499 /*
1500 Save the Firmware Version in the Host Adapter structure.
1501 */
1502 tgt = adapter->fw_ver;
1503 *tgt++ = id.fw_ver_digit1;
1504 *tgt++ = '.';
1505 *tgt++ = id.fw_ver_digit2;
1506 if (fw_ver_digit3 != ' ' && fw_ver_digit3 != '\0')
1507 *tgt++ = fw_ver_digit3;
1508 *tgt = '\0';
1509 /*
1510 Issue the Inquire Firmware Version Letter command.
1511 */
1512 if (strcmp(adapter->fw_ver, "3.3") >= 0) {
1513 if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_LETTER, NULL, 0,
1514 &fw_ver_letter,
1515 sizeof(fw_ver_letter)) != sizeof(fw_ver_letter))
1516 return blogic_failure(adapter,
1517 "INQUIRE FIRMWARE VERSION LETTER");
1518 if (fw_ver_letter != ' ' && fw_ver_letter != '\0')
1519 *tgt++ = fw_ver_letter;
1520 *tgt = '\0';
1521 }
1522 /*
1523 Save the Host Adapter SCSI ID in the Host Adapter structure.
1524 */
1525 adapter->scsi_id = config.id;
1526 /*
1527 Determine the Bus Type and save it in the Host Adapter structure,
1528 determine and save the IRQ Channel if necessary, and determine
1529 and save the DMA Channel for ISA Host Adapters.
1530 */
1531 adapter->adapter_bus_type =
1532 blogic_adater_bus_types[adapter->model[3] - '4'];
1533 if (adapter->irq_ch == 0) {
1534 if (config.irq_ch9)
1535 adapter->irq_ch = 9;
1536 else if (config.irq_ch10)
1537 adapter->irq_ch = 10;
1538 else if (config.irq_ch11)
1539 adapter->irq_ch = 11;
1540 else if (config.irq_ch12)
1541 adapter->irq_ch = 12;
1542 else if (config.irq_ch14)
1543 adapter->irq_ch = 14;
1544 else if (config.irq_ch15)
1545 adapter->irq_ch = 15;
1546 }
1547 if (adapter->adapter_bus_type == BLOGIC_ISA_BUS) {
1548 if (config.dma_ch5)
1549 adapter->dma_ch = 5;
1550 else if (config.dma_ch6)
1551 adapter->dma_ch = 6;
1552 else if (config.dma_ch7)
1553 adapter->dma_ch = 7;
1554 }
1555 /*
1556 Determine whether Extended Translation is enabled and save it in
1557 the Host Adapter structure.
1558 */
1559 georeg.all = blogic_rdgeom(adapter);
1560 adapter->ext_trans_enable = georeg.gr.ext_trans_enable;
1561 /*
1562 Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide
1563 SCSI flag, Differential SCSI flag, SCAM Supported flag, and
1564 Ultra SCSI flag in the Host Adapter structure.
1565 */
1566 adapter->adapter_sglimit = ext_setupinfo.sg_limit;
1567 adapter->drvr_sglimit = adapter->adapter_sglimit;
1568 if (adapter->adapter_sglimit > BLOGIC_SG_LIMIT)
1569 adapter->drvr_sglimit = BLOGIC_SG_LIMIT;
1570 if (ext_setupinfo.misc.level_int)
1571 adapter->level_int = true;
1572 adapter->wide = ext_setupinfo.wide;
1573 adapter->differential = ext_setupinfo.differential;
1574 adapter->scam = ext_setupinfo.scam;
1575 adapter->ultra = ext_setupinfo.ultra;
1576 /*
1577 Determine whether Extended LUN Format CCBs are supported and save the
1578 information in the Host Adapter structure.
1579 */
1580 if (adapter->fw_ver[0] == '5' || (adapter->fw_ver[0] == '4' &&
1581 adapter->wide))
1582 adapter->ext_lun = true;
1583 /*
1584 Issue the Inquire PCI Host Adapter Information command to read the
1585 Termination Information from "W" series MultiMaster Host Adapters.
1586 */
1587 if (adapter->fw_ver[0] == '5') {
1588 if (blogic_cmd(adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
1589 &adapter_info,
1590 sizeof(adapter_info)) != sizeof(adapter_info))
1591 return blogic_failure(adapter,
1592 "INQUIRE PCI HOST ADAPTER INFORMATION");
1593 /*
1594 Save the Termination Information in the Host Adapter
1595 structure.
1596 */
1597 if (adapter_info.genericinfo_valid) {
1598 adapter->terminfo_valid = true;
1599 adapter->low_term = adapter_info.low_term;
1600 adapter->high_term = adapter_info.high_term;
1601 }
1602 }
1603 /*
1604 Issue the Fetch Host Adapter Local RAM command to read the
1605 AutoSCSI data from "W" and "C" series MultiMaster Host Adapters.
1606 */
1607 if (adapter->fw_ver[0] >= '4') {
1608 fetch_localram.offset = BLOGIC_AUTOSCSI_BASE;
1609 fetch_localram.count = sizeof(autoscsi);
1610 if (blogic_cmd(adapter, BLOGIC_FETCH_LOCALRAM, &fetch_localram,
1611 sizeof(fetch_localram), &autoscsi,
1612 sizeof(autoscsi)) != sizeof(autoscsi))
1613 return blogic_failure(adapter,
1614 "FETCH HOST ADAPTER LOCAL RAM");
1615 /*
1616 Save the Parity Checking Enabled, Bus Reset Enabled,
1617 and Termination Information in the Host Adapter structure.
1618 */
1619 adapter->parity = autoscsi.parity;
1620 adapter->reset_enabled = autoscsi.reset_enabled;
1621 if (adapter->fw_ver[0] == '4') {
1622 adapter->terminfo_valid = true;
1623 adapter->low_term = autoscsi.low_term;
1624 adapter->high_term = autoscsi.high_term;
1625 }
1626 /*
1627 Save the Wide Permitted, Fast Permitted, Synchronous
1628 Permitted, Disconnect Permitted, Ultra Permitted, and
1629 SCAM Information in the Host Adapter structure.
1630 */
1631 adapter->wide_ok = autoscsi.wide_ok;
1632 adapter->fast_ok = autoscsi.fast_ok;
1633 adapter->sync_ok = autoscsi.sync_ok;
1634 adapter->discon_ok = autoscsi.discon_ok;
1635 if (adapter->ultra)
1636 adapter->ultra_ok = autoscsi.ultra_ok;
1637 if (adapter->scam) {
1638 adapter->scam_enabled = autoscsi.scam_enabled;
1639 adapter->scam_lev2 = autoscsi.scam_lev2;
1640 }
1641 }
1642 /*
1643 Initialize fields in the Host Adapter structure for "S" and "A"
1644 series MultiMaster Host Adapters.
1645 */
1646 if (adapter->fw_ver[0] < '4') {
1647 if (setupinfo.sync) {
1648 adapter->sync_ok = 0xFF;
1649 if (adapter->adapter_bus_type == BLOGIC_EISA_BUS) {
1650 if (ext_setupinfo.misc.fast_on_eisa)
1651 adapter->fast_ok = 0xFF;
1652 if (strcmp(adapter->model, "BT-757") == 0)
1653 adapter->wide_ok = 0xFF;
1654 }
1655 }
1656 adapter->discon_ok = 0xFF;
1657 adapter->parity = setupinfo.parity;
1658 adapter->reset_enabled = true;
1659 }
1660 /*
1661 Determine the maximum number of Target IDs and Logical Units
1662 supported by this driver for Wide and Narrow Host Adapters.
1663 */
1664 adapter->maxdev = (adapter->wide ? 16 : 8);
1665 adapter->maxlun = (adapter->ext_lun ? 32 : 8);
1666 /*
1667 Select appropriate values for the Mailbox Count, Driver Queue Depth,
1668 Initial CCBs, and Incremental CCBs variables based on whether
1669 or not Strict Round Robin Mode is supported. If Strict Round
1670 Robin Mode is supported, then there is no performance degradation
1671 in using the maximum possible number of Outgoing and Incoming
1672 Mailboxes and allowing the Tagged and Untagged Queue Depths to
1673 determine the actual utilization. If Strict Round Robin Mode is
1674 not supported, then the Host Adapter must scan all the Outgoing
1675 Mailboxes whenever an Outgoing Mailbox entry is made, which can
1676 cause a substantial performance penalty. The host adapters
1677 actually have room to store the following number of CCBs
1678 internally; that is, they can internally queue and manage this
1679 many active commands on the SCSI bus simultaneously. Performance
1680 measurements demonstrate that the Driver Queue Depth should be
1681 set to the Mailbox Count, rather than the Host Adapter Queue
1682 Depth (internal CCB capacity), as it is more efficient to have the
1683 queued commands waiting in Outgoing Mailboxes if necessary than
1684 to block the process in the higher levels of the SCSI Subsystem.
1685
1686 192 BT-948/958/958D
1687 100 BT-946C/956C/956CD/747C/757C/757CD/445C
1688 50 BT-545C/540CF
1689 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A
1690 */
1691 if (adapter->fw_ver[0] == '5')
1692 adapter->adapter_qdepth = 192;
1693 else if (adapter->fw_ver[0] == '4')
1694 adapter->adapter_qdepth = (adapter->adapter_bus_type !=
1695 BLOGIC_ISA_BUS ? 100 : 50);
1696 else
1697 adapter->adapter_qdepth = 30;
1698 if (strcmp(adapter->fw_ver, "3.31") >= 0) {
1699 adapter->strict_rr = true;
1700 adapter->mbox_count = BLOGIC_MAX_MAILBOX;
1701 } else {
1702 adapter->strict_rr = false;
1703 adapter->mbox_count = 32;
1704 }
1705 adapter->drvr_qdepth = adapter->mbox_count;
1706 adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE;
1707 adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE;
1708 /*
1709 Tagged Queuing support is available and operates properly on
1710 all "W" series MultiMaster Host Adapters, on "C" series
1711 MultiMaster Host Adapters with firmware version 4.22 and above,
1712 and on "S" series MultiMaster Host Adapters with firmware version
1713 3.35 and above.
1714 */
1715 adapter->tagq_ok = 0;
1716 switch (adapter->fw_ver[0]) {
1717 case '5':
1718 adapter->tagq_ok = 0xFFFF;
1719 break;
1720 case '4':
1721 if (strcmp(adapter->fw_ver, "4.22") >= 0)
1722 adapter->tagq_ok = 0xFFFF;
1723 break;
1724 case '3':
1725 if (strcmp(adapter->fw_ver, "3.35") >= 0)
1726 adapter->tagq_ok = 0xFFFF;
1727 break;
1728 }
1729 /*
1730 Determine the Host Adapter BIOS Address if the BIOS is enabled and
1731 save it in the Host Adapter structure. The BIOS is disabled if the
1732 bios_addr is 0.
1733 */
1734 adapter->bios_addr = ext_setupinfo.bios_addr << 12;
1735 /*
1736 ISA Host Adapters require Bounce Buffers if there is more than
1737 16MB memory.
1738 */
1739 if (adapter->adapter_bus_type == BLOGIC_ISA_BUS &&
1740 (void *) high_memory > (void *) MAX_DMA_ADDRESS)
1741 adapter->need_bouncebuf = true;
1742 /*
1743 BusLogic BT-445S Host Adapters prior to board revision E have a
1744 hardware bug whereby when the BIOS is enabled, transfers to/from
1745 the same address range the BIOS occupies modulo 16MB are handled
1746 incorrectly. Only properly functioning BT-445S Host Adapters
1747 have firmware version 3.37, so require that ISA Bounce Buffers
1748 be used for the buggy BT-445S models if there is more than 16MB
1749 memory.
1750 */
1751 if (adapter->bios_addr > 0 && strcmp(adapter->model, "BT-445S") == 0 &&
1752 strcmp(adapter->fw_ver, "3.37") < 0 &&
1753 (void *) high_memory > (void *) MAX_DMA_ADDRESS)
1754 adapter->need_bouncebuf = true;
1755 /*
1756 Initialize parameters common to MultiMaster and FlashPoint
1757 Host Adapters.
1758 */
1759common:
1760 /*
1761 Initialize the Host Adapter Full Model Name from the Model Name.
1762 */
1763 strcpy(adapter->full_model, "BusLogic ");
1764 strcat(adapter->full_model, adapter->model);
1765 /*
1766 Select an appropriate value for the Tagged Queue Depth either from a
1767 BusLogic Driver Options specification, or based on whether this Host
1768 Adapter requires that ISA Bounce Buffers be used. The Tagged Queue
1769 Depth is left at 0 for automatic determination in
1770 BusLogic_SelectQueueDepths. Initialize the Untagged Queue Depth.
1771 */
1772 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
1773 unsigned char qdepth = 0;
1774 if (adapter->drvr_opts != NULL &&
1775 adapter->drvr_opts->qdepth[tgt_id] > 0)
1776 qdepth = adapter->drvr_opts->qdepth[tgt_id];
1777 else if (adapter->need_bouncebuf)
1778 qdepth = BLOGIC_TAG_DEPTH_BB;
1779 adapter->qdepth[tgt_id] = qdepth;
1780 }
1781 if (adapter->need_bouncebuf)
1782 adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH_BB;
1783 else
1784 adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH;
1785 if (adapter->drvr_opts != NULL)
1786 adapter->common_qdepth = adapter->drvr_opts->common_qdepth;
1787 if (adapter->common_qdepth > 0 &&
1788 adapter->common_qdepth < adapter->untag_qdepth)
1789 adapter->untag_qdepth = adapter->common_qdepth;
1790 /*
1791 Tagged Queuing is only allowed if Disconnect/Reconnect is permitted.
1792 Therefore, mask the Tagged Queuing Permitted Default bits with the
1793 Disconnect/Reconnect Permitted bits.
1794 */
1795 adapter->tagq_ok &= adapter->discon_ok;
1796 /*
1797 Combine the default Tagged Queuing Permitted bits with any
1798 BusLogic Driver Options Tagged Queuing specification.
1799 */
1800 if (adapter->drvr_opts != NULL)
1801 adapter->tagq_ok = (adapter->drvr_opts->tagq_ok &
1802 adapter->drvr_opts->tagq_ok_mask) |
1803 (adapter->tagq_ok & ~adapter->drvr_opts->tagq_ok_mask);
1804
1805 /*
1806 Select an appropriate value for Bus Settle Time either from a
1807 BusLogic Driver Options specification, or from
1808 BLOGIC_BUS_SETTLE_TIME.
1809 */
1810 if (adapter->drvr_opts != NULL &&
1811 adapter->drvr_opts->bus_settle_time > 0)
1812 adapter->bus_settle_time = adapter->drvr_opts->bus_settle_time;
1813 else
1814 adapter->bus_settle_time = BLOGIC_BUS_SETTLE_TIME;
1815 /*
1816 Indicate reading the Host Adapter Configuration completed
1817 successfully.
1818 */
1819 return true;
1820}
1821
1822
1823/*
1824 blogic_reportconfig reports the configuration of Host Adapter.
1825*/
1826
1827static bool __init blogic_reportconfig(struct blogic_adapter *adapter)
1828{
1829 unsigned short alltgt_mask = (1 << adapter->maxdev) - 1;
1830 unsigned short sync_ok, fast_ok;
1831 unsigned short ultra_ok, wide_ok;
1832 unsigned short discon_ok, tagq_ok;
1833 bool common_syncneg, common_tagq_depth;
1834 char syncstr[BLOGIC_MAXDEV + 1];
1835 char widestr[BLOGIC_MAXDEV + 1];
1836 char discon_str[BLOGIC_MAXDEV + 1];
1837 char tagq_str[BLOGIC_MAXDEV + 1];
1838 char *syncmsg = syncstr;
1839 char *widemsg = widestr;
1840 char *discon_msg = discon_str;
1841 char *tagq_msg = tagq_str;
1842 int tgt_id;
1843
1844 blogic_info("Configuring BusLogic Model %s %s%s%s%s SCSI Host Adapter\n", adapter, adapter->model, blogic_adapter_busnames[adapter->adapter_bus_type], (adapter->wide ? " Wide" : ""), (adapter->differential ? " Differential" : ""), (adapter->ultra ? " Ultra" : ""));
1845 blogic_info(" Firmware Version: %s, I/O Address: 0x%X, " "IRQ Channel: %d/%s\n", adapter, adapter->fw_ver, adapter->io_addr, adapter->irq_ch, (adapter->level_int ? "Level" : "Edge"));
1846 if (adapter->adapter_bus_type != BLOGIC_PCI_BUS) {
1847 blogic_info(" DMA Channel: ", adapter);
1848 if (adapter->dma_ch > 0)
1849 blogic_info("%d, ", adapter, adapter->dma_ch);
1850 else
1851 blogic_info("None, ", adapter);
1852 if (adapter->bios_addr > 0)
1853 blogic_info("BIOS Address: 0x%X, ", adapter,
1854 adapter->bios_addr);
1855 else
1856 blogic_info("BIOS Address: None, ", adapter);
1857 } else {
1858 blogic_info(" PCI Bus: %d, Device: %d, Address: ", adapter,
1859 adapter->bus, adapter->dev);
1860 if (adapter->pci_addr > 0)
1861 blogic_info("0x%X, ", adapter, adapter->pci_addr);
1862 else
1863 blogic_info("Unassigned, ", adapter);
1864 }
1865 blogic_info("Host Adapter SCSI ID: %d\n", adapter, adapter->scsi_id);
1866 blogic_info(" Parity Checking: %s, Extended Translation: %s\n",
1867 adapter, (adapter->parity ? "Enabled" : "Disabled"),
1868 (adapter->ext_trans_enable ? "Enabled" : "Disabled"));
1869 alltgt_mask &= ~(1 << adapter->scsi_id);
1870 sync_ok = adapter->sync_ok & alltgt_mask;
1871 fast_ok = adapter->fast_ok & alltgt_mask;
1872 ultra_ok = adapter->ultra_ok & alltgt_mask;
1873 if ((blogic_multimaster_type(adapter) &&
1874 (adapter->fw_ver[0] >= '4' ||
1875 adapter->adapter_bus_type == BLOGIC_EISA_BUS)) ||
1876 blogic_flashpoint_type(adapter)) {
1877 common_syncneg = false;
1878 if (sync_ok == 0) {
1879 syncmsg = "Disabled";
1880 common_syncneg = true;
1881 } else if (sync_ok == alltgt_mask) {
1882 if (fast_ok == 0) {
1883 syncmsg = "Slow";
1884 common_syncneg = true;
1885 } else if (fast_ok == alltgt_mask) {
1886 if (ultra_ok == 0) {
1887 syncmsg = "Fast";
1888 common_syncneg = true;
1889 } else if (ultra_ok == alltgt_mask) {
1890 syncmsg = "Ultra";
1891 common_syncneg = true;
1892 }
1893 }
1894 }
1895 if (!common_syncneg) {
1896 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1897 syncstr[tgt_id] = ((!(sync_ok & (1 << tgt_id))) ? 'N' : (!(fast_ok & (1 << tgt_id)) ? 'S' : (!(ultra_ok & (1 << tgt_id)) ? 'F' : 'U')));
1898 syncstr[adapter->scsi_id] = '#';
1899 syncstr[adapter->maxdev] = '\0';
1900 }
1901 } else
1902 syncmsg = (sync_ok == 0 ? "Disabled" : "Enabled");
1903 wide_ok = adapter->wide_ok & alltgt_mask;
1904 if (wide_ok == 0)
1905 widemsg = "Disabled";
1906 else if (wide_ok == alltgt_mask)
1907 widemsg = "Enabled";
1908 else {
1909 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1910 widestr[tgt_id] = ((wide_ok & (1 << tgt_id)) ? 'Y' : 'N');
1911 widestr[adapter->scsi_id] = '#';
1912 widestr[adapter->maxdev] = '\0';
1913 }
1914 discon_ok = adapter->discon_ok & alltgt_mask;
1915 if (discon_ok == 0)
1916 discon_msg = "Disabled";
1917 else if (discon_ok == alltgt_mask)
1918 discon_msg = "Enabled";
1919 else {
1920 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1921 discon_str[tgt_id] = ((discon_ok & (1 << tgt_id)) ? 'Y' : 'N');
1922 discon_str[adapter->scsi_id] = '#';
1923 discon_str[adapter->maxdev] = '\0';
1924 }
1925 tagq_ok = adapter->tagq_ok & alltgt_mask;
1926 if (tagq_ok == 0)
1927 tagq_msg = "Disabled";
1928 else if (tagq_ok == alltgt_mask)
1929 tagq_msg = "Enabled";
1930 else {
1931 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1932 tagq_str[tgt_id] = ((tagq_ok & (1 << tgt_id)) ? 'Y' : 'N');
1933 tagq_str[adapter->scsi_id] = '#';
1934 tagq_str[adapter->maxdev] = '\0';
1935 }
1936 blogic_info(" Synchronous Negotiation: %s, Wide Negotiation: %s\n",
1937 adapter, syncmsg, widemsg);
1938 blogic_info(" Disconnect/Reconnect: %s, Tagged Queuing: %s\n", adapter,
1939 discon_msg, tagq_msg);
1940 if (blogic_multimaster_type(adapter)) {
1941 blogic_info(" Scatter/Gather Limit: %d of %d segments, " "Mailboxes: %d\n", adapter, adapter->drvr_sglimit, adapter->adapter_sglimit, adapter->mbox_count);
1942 blogic_info(" Driver Queue Depth: %d, " "Host Adapter Queue Depth: %d\n", adapter, adapter->drvr_qdepth, adapter->adapter_qdepth);
1943 } else
1944 blogic_info(" Driver Queue Depth: %d, " "Scatter/Gather Limit: %d segments\n", adapter, adapter->drvr_qdepth, adapter->drvr_sglimit);
1945 blogic_info(" Tagged Queue Depth: ", adapter);
1946 common_tagq_depth = true;
1947 for (tgt_id = 1; tgt_id < adapter->maxdev; tgt_id++)
1948 if (adapter->qdepth[tgt_id] != adapter->qdepth[0]) {
1949 common_tagq_depth = false;
1950 break;
1951 }
1952 if (common_tagq_depth) {
1953 if (adapter->qdepth[0] > 0)
1954 blogic_info("%d", adapter, adapter->qdepth[0]);
1955 else
1956 blogic_info("Automatic", adapter);
1957 } else
1958 blogic_info("Individual", adapter);
1959 blogic_info(", Untagged Queue Depth: %d\n", adapter,
1960 adapter->untag_qdepth);
1961 if (adapter->terminfo_valid) {
1962 if (adapter->wide)
1963 blogic_info(" SCSI Bus Termination: %s", adapter,
1964 (adapter->low_term ? (adapter->high_term ? "Both Enabled" : "Low Enabled") : (adapter->high_term ? "High Enabled" : "Both Disabled")));
1965 else
1966 blogic_info(" SCSI Bus Termination: %s", adapter,
1967 (adapter->low_term ? "Enabled" : "Disabled"));
1968 if (adapter->scam)
1969 blogic_info(", SCAM: %s", adapter,
1970 (adapter->scam_enabled ? (adapter->scam_lev2 ? "Enabled, Level 2" : "Enabled, Level 1") : "Disabled"));
1971 blogic_info("\n", adapter);
1972 }
1973 /*
1974 Indicate reporting the Host Adapter configuration completed
1975 successfully.
1976 */
1977 return true;
1978}
1979
1980
1981/*
1982 blogic_getres acquires the system resources necessary to use
1983 Host Adapter.
1984*/
1985
1986static bool __init blogic_getres(struct blogic_adapter *adapter)
1987{
1988 if (adapter->irq_ch == 0) {
1989 blogic_err("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n",
1990 adapter);
1991 return false;
1992 }
1993 /*
1994 Acquire shared access to the IRQ Channel.
1995 */
1996 if (request_irq(adapter->irq_ch, blogic_inthandler, IRQF_SHARED,
1997 adapter->full_model, adapter) < 0) {
1998 blogic_err("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n",
1999 adapter, adapter->irq_ch);
2000 return false;
2001 }
2002 adapter->irq_acquired = true;
2003 /*
2004 Acquire exclusive access to the DMA Channel.
2005 */
2006 if (adapter->dma_ch > 0) {
2007 if (request_dma(adapter->dma_ch, adapter->full_model) < 0) {
2008 blogic_err("UNABLE TO ACQUIRE DMA CHANNEL %d - DETACHING\n", adapter, adapter->dma_ch);
2009 return false;
2010 }
2011 set_dma_mode(adapter->dma_ch, DMA_MODE_CASCADE);
2012 enable_dma(adapter->dma_ch);
2013 adapter->dma_chan_acquired = true;
2014 }
2015 /*
2016 Indicate the System Resource Acquisition completed successfully,
2017 */
2018 return true;
2019}
2020
2021
2022/*
2023 blogic_relres releases any system resources previously acquired
2024 by blogic_getres.
2025*/
2026
2027static void blogic_relres(struct blogic_adapter *adapter)
2028{
2029 /*
2030 Release shared access to the IRQ Channel.
2031 */
2032 if (adapter->irq_acquired)
2033 free_irq(adapter->irq_ch, adapter);
2034 /*
2035 Release exclusive access to the DMA Channel.
2036 */
2037 if (adapter->dma_chan_acquired)
2038 free_dma(adapter->dma_ch);
2039 /*
2040 Release any allocated memory structs not released elsewhere
2041 */
2042 if (adapter->mbox_space)
2043 pci_free_consistent(adapter->pci_device, adapter->mbox_sz,
2044 adapter->mbox_space, adapter->mbox_space_handle);
2045 pci_dev_put(adapter->pci_device);
2046 adapter->mbox_space = NULL;
2047 adapter->mbox_space_handle = 0;
2048 adapter->mbox_sz = 0;
2049}
2050
2051
2052/*
2053 blogic_initadapter initializes Host Adapter. This is the only
2054 function called during SCSI Host Adapter detection which modifies the state
2055 of the Host Adapter from its initial power on or hard reset state.
2056*/
2057
2058static bool blogic_initadapter(struct blogic_adapter *adapter)
2059{
2060 struct blogic_extmbox_req extmbox_req;
2061 enum blogic_rr_req rr_req;
2062 enum blogic_setccb_fmt setccb_fmt;
2063 int tgt_id;
2064
2065 /*
2066 Initialize the pointers to the first and last CCBs that are
2067 queued for completion processing.
2068 */
2069 adapter->firstccb = NULL;
2070 adapter->lastccb = NULL;
2071
2072 /*
2073 Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active,
2074 Command Successful Flag, Active Commands, and Commands Since Reset
2075 for each Target Device.
2076 */
2077 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) {
2078 adapter->bdr_pend[tgt_id] = NULL;
2079 adapter->tgt_flags[tgt_id].tagq_active = false;
2080 adapter->tgt_flags[tgt_id].cmd_good = false;
2081 adapter->active_cmds[tgt_id] = 0;
2082 adapter->cmds_since_rst[tgt_id] = 0;
2083 }
2084
2085 /*
2086 FlashPoint Host Adapters do not use Outgoing and Incoming Mailboxes.
2087 */
2088 if (blogic_flashpoint_type(adapter))
2089 goto done;
2090
2091 /*
2092 Initialize the Outgoing and Incoming Mailbox pointers.
2093 */
2094 adapter->mbox_sz = adapter->mbox_count * (sizeof(struct blogic_outbox) + sizeof(struct blogic_inbox));
2095 adapter->mbox_space = pci_alloc_consistent(adapter->pci_device,
2096 adapter->mbox_sz, &adapter->mbox_space_handle);
2097 if (adapter->mbox_space == NULL)
2098 return blogic_failure(adapter, "MAILBOX ALLOCATION");
2099 adapter->first_outbox = (struct blogic_outbox *) adapter->mbox_space;
2100 adapter->last_outbox = adapter->first_outbox + adapter->mbox_count - 1;
2101 adapter->next_outbox = adapter->first_outbox;
2102 adapter->first_inbox = (struct blogic_inbox *) (adapter->last_outbox + 1);
2103 adapter->last_inbox = adapter->first_inbox + adapter->mbox_count - 1;
2104 adapter->next_inbox = adapter->first_inbox;
2105
2106 /*
2107 Initialize the Outgoing and Incoming Mailbox structures.
2108 */
2109 memset(adapter->first_outbox, 0,
2110 adapter->mbox_count * sizeof(struct blogic_outbox));
2111 memset(adapter->first_inbox, 0,
2112 adapter->mbox_count * sizeof(struct blogic_inbox));
2113
2114 /*
2115 Initialize the Host Adapter's Pointer to the Outgoing/Incoming
2116 Mailboxes.
2117 */
2118 extmbox_req.mbox_count = adapter->mbox_count;
2119 extmbox_req.base_mbox_addr = (u32) adapter->mbox_space_handle;
2120 if (blogic_cmd(adapter, BLOGIC_INIT_EXT_MBOX, &extmbox_req,
2121 sizeof(extmbox_req), NULL, 0) < 0)
2122 return blogic_failure(adapter, "MAILBOX INITIALIZATION");
2123 /*
2124 Enable Strict Round Robin Mode if supported by the Host Adapter. In
2125 Strict Round Robin Mode, the Host Adapter only looks at the next
2126 Outgoing Mailbox for each new command, rather than scanning
2127 through all the Outgoing Mailboxes to find any that have new
2128 commands in them. Strict Round Robin Mode is significantly more
2129 efficient.
2130 */
2131 if (adapter->strict_rr) {
2132 rr_req = BLOGIC_STRICT_RR_MODE;
2133 if (blogic_cmd(adapter, BLOGIC_STRICT_RR, &rr_req,
2134 sizeof(rr_req), NULL, 0) < 0)
2135 return blogic_failure(adapter,
2136 "ENABLE STRICT ROUND ROBIN MODE");
2137 }
2138
2139 /*
2140 For Host Adapters that support Extended LUN Format CCBs, issue the
2141 Set CCB Format command to allow 32 Logical Units per Target Device.
2142 */
2143 if (adapter->ext_lun) {
2144 setccb_fmt = BLOGIC_EXT_LUN_CCB;
2145 if (blogic_cmd(adapter, BLOGIC_SETCCB_FMT, &setccb_fmt,
2146 sizeof(setccb_fmt), NULL, 0) < 0)
2147 return blogic_failure(adapter, "SET CCB FORMAT");
2148 }
2149
2150 /*
2151 Announce Successful Initialization.
2152 */
2153done:
2154 if (!adapter->adapter_initd) {
2155 blogic_info("*** %s Initialized Successfully ***\n", adapter,
2156 adapter->full_model);
2157 blogic_info("\n", adapter);
2158 } else
2159 blogic_warn("*** %s Initialized Successfully ***\n", adapter,
2160 adapter->full_model);
2161 adapter->adapter_initd = true;
2162
2163 /*
2164 Indicate the Host Adapter Initialization completed successfully.
2165 */
2166 return true;
2167}
2168
2169
2170/*
2171 blogic_inquiry inquires about the Target Devices accessible
2172 through Host Adapter.
2173*/
2174
2175static bool __init blogic_inquiry(struct blogic_adapter *adapter)
2176{
2177 u16 installed_devs;
2178 u8 installed_devs0to7[8];
2179 struct blogic_setup_info setupinfo;
2180 u8 sync_period[BLOGIC_MAXDEV];
2181 unsigned char req_replylen;
2182 int tgt_id;
2183
2184 /*
2185 Wait a few seconds between the Host Adapter Hard Reset which
2186 initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
2187 SCSI devices get confused if they receive SCSI Commands too soon
2188 after a SCSI Bus Reset.
2189 */
2190 blogic_delay(adapter->bus_settle_time);
2191 /*
2192 FlashPoint Host Adapters do not provide for Target Device Inquiry.
2193 */
2194 if (blogic_flashpoint_type(adapter))
2195 return true;
2196 /*
2197 Inhibit the Target Device Inquiry if requested.
2198 */
2199 if (adapter->drvr_opts != NULL && adapter->drvr_opts->stop_tgt_inquiry)
2200 return true;
2201 /*
2202 Issue the Inquire Target Devices command for host adapters with
2203 firmware version 4.25 or later, or the Inquire Installed Devices
2204 ID 0 to 7 command for older host adapters. This is necessary to
2205 force Synchronous Transfer Negotiation so that the Inquire Setup
2206 Information and Inquire Synchronous Period commands will return
2207 valid data. The Inquire Target Devices command is preferable to
2208 Inquire Installed Devices ID 0 to 7 since it only probes Logical
2209 Unit 0 of each Target Device.
2210 */
2211 if (strcmp(adapter->fw_ver, "4.25") >= 0) {
2212
2213 /*
2214 Issue a Inquire Target Devices command. Inquire Target
2215 Devices only tests Logical Unit 0 of each Target Device
2216 unlike the Inquire Installed Devices commands which test
2217 Logical Units 0 - 7. Two bytes are returned, where byte
2218 0 bit 0 set indicates that Target Device 0 exists, and so on.
2219 */
2220
2221 if (blogic_cmd(adapter, BLOGIC_INQ_DEV, NULL, 0,
2222 &installed_devs, sizeof(installed_devs))
2223 != sizeof(installed_devs))
2224 return blogic_failure(adapter, "INQUIRE TARGET DEVICES");
2225 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2226 adapter->tgt_flags[tgt_id].tgt_exists =
2227 (installed_devs & (1 << tgt_id) ? true : false);
2228 } else {
2229
2230 /*
2231 Issue an Inquire Installed Devices command. For each
2232 Target Device, a byte is returned where bit 0 set
2233 indicates that Logical Unit 0 * exists, bit 1 set
2234 indicates that Logical Unit 1 exists, and so on.
2235 */
2236
2237 if (blogic_cmd(adapter, BLOGIC_INQ_DEV0TO7, NULL, 0,
2238 &installed_devs0to7, sizeof(installed_devs0to7))
2239 != sizeof(installed_devs0to7))
2240 return blogic_failure(adapter,
2241 "INQUIRE INSTALLED DEVICES ID 0 TO 7");
2242 for (tgt_id = 0; tgt_id < 8; tgt_id++)
2243 adapter->tgt_flags[tgt_id].tgt_exists =
2244 (installed_devs0to7[tgt_id] != 0 ? true : false);
2245 }
2246 /*
2247 Issue the Inquire Setup Information command.
2248 */
2249 req_replylen = sizeof(setupinfo);
2250 if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen,
2251 sizeof(req_replylen), &setupinfo, sizeof(setupinfo))
2252 != sizeof(setupinfo))
2253 return blogic_failure(adapter, "INQUIRE SETUP INFORMATION");
2254 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2255 adapter->sync_offset[tgt_id] = (tgt_id < 8 ? setupinfo.sync0to7[tgt_id].offset : setupinfo.sync8to15[tgt_id - 8].offset);
2256 if (strcmp(adapter->fw_ver, "5.06L") >= 0)
2257 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2258 adapter->tgt_flags[tgt_id].wide_active = (tgt_id < 8 ? (setupinfo.wide_tx_active0to7 & (1 << tgt_id) ? true : false) : (setupinfo.wide_tx_active8to15 & (1 << (tgt_id - 8)) ? true : false));
2259 /*
2260 Issue the Inquire Synchronous Period command.
2261 */
2262 if (adapter->fw_ver[0] >= '3') {
2263
2264 /* Issue a Inquire Synchronous Period command. For each
2265 Target Device, a byte is returned which represents the
2266 Synchronous Transfer Period in units of 10 nanoseconds.
2267 */
2268
2269 req_replylen = sizeof(sync_period);
2270 if (blogic_cmd(adapter, BLOGIC_INQ_SYNC_PERIOD, &req_replylen,
2271 sizeof(req_replylen), &sync_period,
2272 sizeof(sync_period)) != sizeof(sync_period))
2273 return blogic_failure(adapter,
2274 "INQUIRE SYNCHRONOUS PERIOD");
2275 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2276 adapter->sync_period[tgt_id] = sync_period[tgt_id];
2277 } else
2278 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2279 if (setupinfo.sync0to7[tgt_id].offset > 0)
2280 adapter->sync_period[tgt_id] = 20 + 5 * setupinfo.sync0to7[tgt_id].tx_period;
2281 /*
2282 Indicate the Target Device Inquiry completed successfully.
2283 */
2284 return true;
2285}
2286
2287/*
2288 blogic_inithoststruct initializes the fields in the SCSI Host
2289 structure. The base, io_port, n_io_ports, irq, and dma_channel fields in the
2290 SCSI Host structure are intentionally left uninitialized, as this driver
2291 handles acquisition and release of these resources explicitly, as well as
2292 ensuring exclusive access to the Host Adapter hardware and data structures
2293 through explicit acquisition and release of the Host Adapter's Lock.
2294*/
2295
2296static void __init blogic_inithoststruct(struct blogic_adapter *adapter,
2297 struct Scsi_Host *host)
2298{
2299 host->max_id = adapter->maxdev;
2300 host->max_lun = adapter->maxlun;
2301 host->max_channel = 0;
2302 host->unique_id = adapter->io_addr;
2303 host->this_id = adapter->scsi_id;
2304 host->can_queue = adapter->drvr_qdepth;
2305 host->sg_tablesize = adapter->drvr_sglimit;
2306 host->unchecked_isa_dma = adapter->need_bouncebuf;
2307 host->cmd_per_lun = adapter->untag_qdepth;
2308}
2309
2310/*
2311 blogic_slaveconfig will actually set the queue depth on individual
2312 scsi devices as they are permanently added to the device chain. We
2313 shamelessly rip off the SelectQueueDepths code to make this work mostly
2314 like it used to. Since we don't get called once at the end of the scan
2315 but instead get called for each device, we have to do things a bit
2316 differently.
2317*/
2318static int blogic_slaveconfig(struct scsi_device *dev)
2319{
2320 struct blogic_adapter *adapter =
2321 (struct blogic_adapter *) dev->host->hostdata;
2322 int tgt_id = dev->id;
2323 int qdepth = adapter->qdepth[tgt_id];
2324
2325 if (adapter->tgt_flags[tgt_id].tagq_ok &&
2326 (adapter->tagq_ok & (1 << tgt_id))) {
2327 if (qdepth == 0)
2328 qdepth = BLOGIC_MAX_AUTO_TAG_DEPTH;
2329 adapter->qdepth[tgt_id] = qdepth;
2330 scsi_adjust_queue_depth(dev, MSG_SIMPLE_TAG, qdepth);
2331 } else {
2332 adapter->tagq_ok &= ~(1 << tgt_id);
2333 qdepth = adapter->untag_qdepth;
2334 adapter->qdepth[tgt_id] = qdepth;
2335 scsi_adjust_queue_depth(dev, 0, qdepth);
2336 }
2337 qdepth = 0;
2338 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2339 if (adapter->tgt_flags[tgt_id].tgt_exists)
2340 qdepth += adapter->qdepth[tgt_id];
2341 if (qdepth > adapter->alloc_ccbs)
2342 blogic_create_addlccbs(adapter, qdepth - adapter->alloc_ccbs,
2343 false);
2344 return 0;
2345}
2346
2347/*
2348 blogic_init probes for BusLogic Host Adapters at the standard
2349 I/O Addresses where they may be located, initializing, registering, and
2350 reporting the configuration of each BusLogic Host Adapter it finds. It
2351 returns the number of BusLogic Host Adapters successfully initialized and
2352 registered.
2353*/
2354
2355static int __init blogic_init(void)
2356{
2357 int adapter_count = 0, drvr_optindex = 0, probeindex;
2358 struct blogic_adapter *adapter;
2359 int ret = 0;
2360
2361#ifdef MODULE
2362 if (BusLogic)
2363 blogic_setup(BusLogic);
2364#endif
2365
2366 if (blogic_probe_options.noprobe)
2367 return -ENODEV;
2368 blogic_probeinfo_list =
2369 kzalloc(BLOGIC_MAX_ADAPTERS * sizeof(struct blogic_probeinfo),
2370 GFP_KERNEL);
2371 if (blogic_probeinfo_list == NULL) {
2372 blogic_err("BusLogic: Unable to allocate Probe Info List\n",
2373 NULL);
2374 return -ENOMEM;
2375 }
2376
2377 adapter = kzalloc(sizeof(struct blogic_adapter), GFP_KERNEL);
2378 if (adapter == NULL) {
2379 kfree(blogic_probeinfo_list);
2380 blogic_err("BusLogic: Unable to allocate Prototype Host Adapter\n", NULL);
2381 return -ENOMEM;
2382 }
2383
2384#ifdef MODULE
2385 if (BusLogic != NULL)
2386 blogic_setup(BusLogic);
2387#endif
2388 blogic_init_probeinfo_list(adapter);
2389 for (probeindex = 0; probeindex < blogic_probeinfo_count; probeindex++) {
2390 struct blogic_probeinfo *probeinfo =
2391 &blogic_probeinfo_list[probeindex];
2392 struct blogic_adapter *myadapter = adapter;
2393 struct Scsi_Host *host;
2394
2395 if (probeinfo->io_addr == 0)
2396 continue;
2397 memset(myadapter, 0, sizeof(struct blogic_adapter));
2398 myadapter->adapter_type = probeinfo->adapter_type;
2399 myadapter->adapter_bus_type = probeinfo->adapter_bus_type;
2400 myadapter->io_addr = probeinfo->io_addr;
2401 myadapter->pci_addr = probeinfo->pci_addr;
2402 myadapter->bus = probeinfo->bus;
2403 myadapter->dev = probeinfo->dev;
2404 myadapter->pci_device = probeinfo->pci_device;
2405 myadapter->irq_ch = probeinfo->irq_ch;
2406 myadapter->addr_count =
2407 blogic_adapter_addr_count[myadapter->adapter_type];
2408
2409 /*
2410 Make sure region is free prior to probing.
2411 */
2412 if (!request_region(myadapter->io_addr, myadapter->addr_count,
2413 "BusLogic"))
2414 continue;
2415 /*
2416 Probe the Host Adapter. If unsuccessful, abort further
2417 initialization.
2418 */
2419 if (!blogic_probe(myadapter)) {
2420 release_region(myadapter->io_addr,
2421 myadapter->addr_count);
2422 continue;
2423 }
2424 /*
2425 Hard Reset the Host Adapter. If unsuccessful, abort further
2426 initialization.
2427 */
2428 if (!blogic_hwreset(myadapter, true)) {
2429 release_region(myadapter->io_addr,
2430 myadapter->addr_count);
2431 continue;
2432 }
2433 /*
2434 Check the Host Adapter. If unsuccessful, abort further
2435 initialization.
2436 */
2437 if (!blogic_checkadapter(myadapter)) {
2438 release_region(myadapter->io_addr,
2439 myadapter->addr_count);
2440 continue;
2441 }
2442 /*
2443 Initialize the Driver Options field if provided.
2444 */
2445 if (drvr_optindex < blogic_drvr_options_count)
2446 myadapter->drvr_opts =
2447 &blogic_drvr_options[drvr_optindex++];
2448 /*
2449 Announce the Driver Version and Date, Author's Name,
2450 Copyright Notice, and Electronic Mail Address.
2451 */
2452 blogic_announce_drvr(myadapter);
2453 /*
2454 Register the SCSI Host structure.
2455 */
2456
2457 host = scsi_host_alloc(&blogic_template,
2458 sizeof(struct blogic_adapter));
2459 if (host == NULL) {
2460 release_region(myadapter->io_addr,
2461 myadapter->addr_count);
2462 continue;
2463 }
2464 myadapter = (struct blogic_adapter *) host->hostdata;
2465 memcpy(myadapter, adapter, sizeof(struct blogic_adapter));
2466 myadapter->scsi_host = host;
2467 myadapter->host_no = host->host_no;
2468 /*
2469 Add Host Adapter to the end of the list of registered
2470 BusLogic Host Adapters.
2471 */
2472 list_add_tail(&myadapter->host_list, &blogic_host_list);
2473
2474 /*
2475 Read the Host Adapter Configuration, Configure the Host
2476 Adapter, Acquire the System Resources necessary to use
2477 the Host Adapter, then Create the Initial CCBs, Initialize
2478 the Host Adapter, and finally perform Target Device
2479 Inquiry. From this point onward, any failure will be
2480 assumed to be due to a problem with the Host Adapter,
2481 rather than due to having mistakenly identified this port
2482 as belonging to a BusLogic Host Adapter. The I/O Address
2483 range will not be released, thereby preventing it from
2484 being incorrectly identified as any other type of Host
2485 Adapter.
2486 */
2487 if (blogic_rdconfig(myadapter) &&
2488 blogic_reportconfig(myadapter) &&
2489 blogic_getres(myadapter) &&
2490 blogic_create_initccbs(myadapter) &&
2491 blogic_initadapter(myadapter) &&
2492 blogic_inquiry(myadapter)) {
2493 /*
2494 Initialization has been completed successfully.
2495 Release and re-register usage of the I/O Address
2496 range so that the Model Name of the Host Adapter
2497 will appear, and initialize the SCSI Host structure.
2498 */
2499 release_region(myadapter->io_addr,
2500 myadapter->addr_count);
2501 if (!request_region(myadapter->io_addr,
2502 myadapter->addr_count,
2503 myadapter->full_model)) {
2504 printk(KERN_WARNING
2505 "BusLogic: Release and re-register of "
2506 "port 0x%04lx failed \n",
2507 (unsigned long)myadapter->io_addr);
2508 blogic_destroy_ccbs(myadapter);
2509 blogic_relres(myadapter);
2510 list_del(&myadapter->host_list);
2511 scsi_host_put(host);
2512 ret = -ENOMEM;
2513 } else {
2514 blogic_inithoststruct(myadapter,
2515 host);
2516 if (scsi_add_host(host, myadapter->pci_device
2517 ? &myadapter->pci_device->dev
2518 : NULL)) {
2519 printk(KERN_WARNING
2520 "BusLogic: scsi_add_host()"
2521 "failed!\n");
2522 blogic_destroy_ccbs(myadapter);
2523 blogic_relres(myadapter);
2524 list_del(&myadapter->host_list);
2525 scsi_host_put(host);
2526 ret = -ENODEV;
2527 } else {
2528 scsi_scan_host(host);
2529 adapter_count++;
2530 }
2531 }
2532 } else {
2533 /*
2534 An error occurred during Host Adapter Configuration
2535 Querying, Host Adapter Configuration, Resource
2536 Acquisition, CCB Creation, Host Adapter
2537 Initialization, or Target Device Inquiry, so
2538 remove Host Adapter from the list of registered
2539 BusLogic Host Adapters, destroy the CCBs, Release
2540 the System Resources, and Unregister the SCSI
2541 Host.
2542 */
2543 blogic_destroy_ccbs(myadapter);
2544 blogic_relres(myadapter);
2545 list_del(&myadapter->host_list);
2546 scsi_host_put(host);
2547 ret = -ENODEV;
2548 }
2549 }
2550 kfree(adapter);
2551 kfree(blogic_probeinfo_list);
2552 blogic_probeinfo_list = NULL;
2553 return ret;
2554}
2555
2556
2557/*
2558 blogic_deladapter releases all resources previously acquired to
2559 support a specific Host Adapter, including the I/O Address range, and
2560 unregisters the BusLogic Host Adapter.
2561*/
2562
2563static int __exit blogic_deladapter(struct blogic_adapter *adapter)
2564{
2565 struct Scsi_Host *host = adapter->scsi_host;
2566
2567 scsi_remove_host(host);
2568
2569 /*
2570 FlashPoint Host Adapters must first be released by the FlashPoint
2571 SCCB Manager.
2572 */
2573 if (blogic_flashpoint_type(adapter))
2574 FlashPoint_ReleaseHostAdapter(adapter->cardhandle);
2575 /*
2576 Destroy the CCBs and release any system resources acquired to
2577 support Host Adapter.
2578 */
2579 blogic_destroy_ccbs(adapter);
2580 blogic_relres(adapter);
2581 /*
2582 Release usage of the I/O Address range.
2583 */
2584 release_region(adapter->io_addr, adapter->addr_count);
2585 /*
2586 Remove Host Adapter from the list of registered BusLogic
2587 Host Adapters.
2588 */
2589 list_del(&adapter->host_list);
2590
2591 scsi_host_put(host);
2592 return 0;
2593}
2594
2595
2596/*
2597 blogic_qcompleted_ccb queues CCB for completion processing.
2598*/
2599
2600static void blogic_qcompleted_ccb(struct blogic_ccb *ccb)
2601{
2602 struct blogic_adapter *adapter = ccb->adapter;
2603
2604 ccb->status = BLOGIC_CCB_COMPLETE;
2605 ccb->next = NULL;
2606 if (adapter->firstccb == NULL) {
2607 adapter->firstccb = ccb;
2608 adapter->lastccb = ccb;
2609 } else {
2610 adapter->lastccb->next = ccb;
2611 adapter->lastccb = ccb;
2612 }
2613 adapter->active_cmds[ccb->tgt_id]--;
2614}
2615
2616
2617/*
2618 blogic_resultcode computes a SCSI Subsystem Result Code from
2619 the Host Adapter Status and Target Device Status.
2620*/
2621
2622static int blogic_resultcode(struct blogic_adapter *adapter,
2623 enum blogic_adapter_status adapter_status,
2624 enum blogic_tgt_status tgt_status)
2625{
2626 int hoststatus;
2627
2628 switch (adapter_status) {
2629 case BLOGIC_CMD_CMPLT_NORMAL:
2630 case BLOGIC_LINK_CMD_CMPLT:
2631 case BLOGIC_LINK_CMD_CMPLT_FLAG:
2632 hoststatus = DID_OK;
2633 break;
2634 case BLOGIC_SELECT_TIMEOUT:
2635 hoststatus = DID_TIME_OUT;
2636 break;
2637 case BLOGIC_INVALID_OUTBOX_CODE:
2638 case BLOGIC_INVALID_CMD_CODE:
2639 case BLOGIC_BAD_CMD_PARAM:
2640 blogic_warn("BusLogic Driver Protocol Error 0x%02X\n",
2641 adapter, adapter_status);
2642 case BLOGIC_DATA_UNDERRUN:
2643 case BLOGIC_DATA_OVERRUN:
2644 case BLOGIC_NOEXPECT_BUSFREE:
2645 case BLOGIC_LINKCCB_BADLUN:
2646 case BLOGIC_AUTOREQSENSE_FAIL:
2647 case BLOGIC_TAGQUEUE_REJECT:
2648 case BLOGIC_BAD_MSG_RCVD:
2649 case BLOGIC_HW_FAIL:
2650 case BLOGIC_BAD_RECONNECT:
2651 case BLOGIC_ABRT_QUEUE:
2652 case BLOGIC_ADAPTER_SW_ERROR:
2653 case BLOGIC_HW_TIMEOUT:
2654 case BLOGIC_PARITY_ERR:
2655 hoststatus = DID_ERROR;
2656 break;
2657 case BLOGIC_INVALID_BUSPHASE:
2658 case BLOGIC_NORESPONSE_TO_ATN:
2659 case BLOGIC_HW_RESET:
2660 case BLOGIC_RST_FROM_OTHERDEV:
2661 case BLOGIC_HW_BDR:
2662 hoststatus = DID_RESET;
2663 break;
2664 default:
2665 blogic_warn("Unknown Host Adapter Status 0x%02X\n", adapter,
2666 adapter_status);
2667 hoststatus = DID_ERROR;
2668 break;
2669 }
2670 return (hoststatus << 16) | tgt_status;
2671}
2672
2673
2674/*
2675 blogic_scan_inbox scans the Incoming Mailboxes saving any
2676 Incoming Mailbox entries for completion processing.
2677*/
2678
2679static void blogic_scan_inbox(struct blogic_adapter *adapter)
2680{
2681 /*
2682 Scan through the Incoming Mailboxes in Strict Round Robin
2683 fashion, saving any completed CCBs for further processing. It
2684 is essential that for each CCB and SCSI Command issued, command
2685 completion processing is performed exactly once. Therefore,
2686 only Incoming Mailboxes with completion code Command Completed
2687 Without Error, Command Completed With Error, or Command Aborted
2688 At Host Request are saved for completion processing. When an
2689 Incoming Mailbox has a completion code of Aborted Command Not
2690 Found, the CCB had already completed or been aborted before the
2691 current Abort request was processed, and so completion processing
2692 has already occurred and no further action should be taken.
2693 */
2694 struct blogic_inbox *next_inbox = adapter->next_inbox;
2695 enum blogic_cmplt_code comp_code;
2696
2697 while ((comp_code = next_inbox->comp_code) != BLOGIC_INBOX_FREE) {
2698 /*
2699 We are only allowed to do this because we limit our
2700 architectures we run on to machines where bus_to_virt(
2701 actually works. There *needs* to be a dma_addr_to_virt()
2702 in the new PCI DMA mapping interface to replace
2703 bus_to_virt() or else this code is going to become very
2704 innefficient.
2705 */
2706 struct blogic_ccb *ccb =
2707 (struct blogic_ccb *) bus_to_virt(next_inbox->ccb);
2708 if (comp_code != BLOGIC_CMD_NOTFOUND) {
2709 if (ccb->status == BLOGIC_CCB_ACTIVE ||
2710 ccb->status == BLOGIC_CCB_RESET) {
2711 /*
2712 Save the Completion Code for this CCB and
2713 queue the CCB for completion processing.
2714 */
2715 ccb->comp_code = comp_code;
2716 blogic_qcompleted_ccb(ccb);
2717 } else {
2718 /*
2719 If a CCB ever appears in an Incoming Mailbox
2720 and is not marked as status Active or Reset,
2721 then there is most likely a bug in
2722 the Host Adapter firmware.
2723 */
2724 blogic_warn("Illegal CCB #%ld status %d in " "Incoming Mailbox\n", adapter, ccb->serial, ccb->status);
2725 }
2726 }
2727 next_inbox->comp_code = BLOGIC_INBOX_FREE;
2728 if (++next_inbox > adapter->last_inbox)
2729 next_inbox = adapter->first_inbox;
2730 }
2731 adapter->next_inbox = next_inbox;
2732}
2733
2734
2735/*
2736 blogic_process_ccbs iterates over the completed CCBs for Host
2737 Adapter setting the SCSI Command Result Codes, deallocating the CCBs, and
2738 calling the SCSI Subsystem Completion Routines. The Host Adapter's Lock
2739 should already have been acquired by the caller.
2740*/
2741
2742static void blogic_process_ccbs(struct blogic_adapter *adapter)
2743{
2744 if (adapter->processing_ccbs)
2745 return;
2746 adapter->processing_ccbs = true;
2747 while (adapter->firstccb != NULL) {
2748 struct blogic_ccb *ccb = adapter->firstccb;
2749 struct scsi_cmnd *command = ccb->command;
2750 adapter->firstccb = ccb->next;
2751 if (adapter->firstccb == NULL)
2752 adapter->lastccb = NULL;
2753 /*
2754 Process the Completed CCB.
2755 */
2756 if (ccb->opcode == BLOGIC_BDR) {
2757 int tgt_id = ccb->tgt_id;
2758
2759 blogic_warn("Bus Device Reset CCB #%ld to Target " "%d Completed\n", adapter, ccb->serial, tgt_id);
2760 blogic_inc_count(&adapter->tgt_stats[tgt_id].bdr_done);
2761 adapter->tgt_flags[tgt_id].tagq_active = false;
2762 adapter->cmds_since_rst[tgt_id] = 0;
2763 adapter->last_resetdone[tgt_id] = jiffies;
2764 /*
2765 Place CCB back on the Host Adapter's free list.
2766 */
2767 blogic_dealloc_ccb(ccb, 1);
2768#if 0 /* this needs to be redone different for new EH */
2769 /*
2770 Bus Device Reset CCBs have the command field
2771 non-NULL only when a Bus Device Reset was requested
2772 for a command that did not have a currently active
2773 CCB in the Host Adapter (i.e., a Synchronous Bus
2774 Device Reset), and hence would not have its
2775 Completion Routine called otherwise.
2776 */
2777 while (command != NULL) {
2778 struct scsi_cmnd *nxt_cmd =
2779 command->reset_chain;
2780 command->reset_chain = NULL;
2781 command->result = DID_RESET << 16;
2782 command->scsi_done(command);
2783 command = nxt_cmd;
2784 }
2785#endif
2786 /*
2787 Iterate over the CCBs for this Host Adapter
2788 performing completion processing for any CCBs
2789 marked as Reset for this Target.
2790 */
2791 for (ccb = adapter->all_ccbs; ccb != NULL;
2792 ccb = ccb->next_all)
2793 if (ccb->status == BLOGIC_CCB_RESET &&
2794 ccb->tgt_id == tgt_id) {
2795 command = ccb->command;
2796 blogic_dealloc_ccb(ccb, 1);
2797 adapter->active_cmds[tgt_id]--;
2798 command->result = DID_RESET << 16;
2799 command->scsi_done(command);
2800 }
2801 adapter->bdr_pend[tgt_id] = NULL;
2802 } else {
2803 /*
2804 Translate the Completion Code, Host Adapter Status,
2805 and Target Device Status into a SCSI Subsystem
2806 Result Code.
2807 */
2808 switch (ccb->comp_code) {
2809 case BLOGIC_INBOX_FREE:
2810 case BLOGIC_CMD_NOTFOUND:
2811 case BLOGIC_INVALID_CCB:
2812 blogic_warn("CCB #%ld to Target %d Impossible State\n", adapter, ccb->serial, ccb->tgt_id);
2813 break;
2814 case BLOGIC_CMD_COMPLETE_GOOD:
2815 adapter->tgt_stats[ccb->tgt_id]
2816 .cmds_complete++;
2817 adapter->tgt_flags[ccb->tgt_id]
2818 .cmd_good = true;
2819 command->result = DID_OK << 16;
2820 break;
2821 case BLOGIC_CMD_ABORT_BY_HOST:
2822 blogic_warn("CCB #%ld to Target %d Aborted\n",
2823 adapter, ccb->serial, ccb->tgt_id);
2824 blogic_inc_count(&adapter->tgt_stats[ccb->tgt_id].aborts_done);
2825 command->result = DID_ABORT << 16;
2826 break;
2827 case BLOGIC_CMD_COMPLETE_ERROR:
2828 command->result = blogic_resultcode(adapter,
2829 ccb->adapter_status, ccb->tgt_status);
2830 if (ccb->adapter_status != BLOGIC_SELECT_TIMEOUT) {
2831 adapter->tgt_stats[ccb->tgt_id]
2832 .cmds_complete++;
2833 if (blogic_global_options.trace_err) {
2834 int i;
2835 blogic_notice("CCB #%ld Target %d: Result %X Host "
2836 "Adapter Status %02X " "Target Status %02X\n", adapter, ccb->serial, ccb->tgt_id, command->result, ccb->adapter_status, ccb->tgt_status);
2837 blogic_notice("CDB ", adapter);
2838 for (i = 0; i < ccb->cdblen; i++)
2839 blogic_notice(" %02X", adapter, ccb->cdb[i]);
2840 blogic_notice("\n", adapter);
2841 blogic_notice("Sense ", adapter);
2842 for (i = 0; i < ccb->sense_datalen; i++)
2843 blogic_notice(" %02X", adapter, command->sense_buffer[i]);
2844 blogic_notice("\n", adapter);
2845 }
2846 }
2847 break;
2848 }
2849 /*
2850 When an INQUIRY command completes normally, save the
2851 CmdQue (Tagged Queuing Supported) and WBus16 (16 Bit
2852 Wide Data Transfers Supported) bits.
2853 */
2854 if (ccb->cdb[0] == INQUIRY && ccb->cdb[1] == 0 &&
2855 ccb->adapter_status == BLOGIC_CMD_CMPLT_NORMAL) {
2856 struct blogic_tgt_flags *tgt_flags =
2857 &adapter->tgt_flags[ccb->tgt_id];
2858 struct scsi_inquiry *inquiry =
2859 (struct scsi_inquiry *) scsi_sglist(command);
2860 tgt_flags->tgt_exists = true;
2861 tgt_flags->tagq_ok = inquiry->CmdQue;
2862 tgt_flags->wide_ok = inquiry->WBus16;
2863 }
2864 /*
2865 Place CCB back on the Host Adapter's free list.
2866 */
2867 blogic_dealloc_ccb(ccb, 1);
2868 /*
2869 Call the SCSI Command Completion Routine.
2870 */
2871 command->scsi_done(command);
2872 }
2873 }
2874 adapter->processing_ccbs = false;
2875}
2876
2877
2878/*
2879 blogic_inthandler handles hardware interrupts from BusLogic Host
2880 Adapters.
2881*/
2882
2883static irqreturn_t blogic_inthandler(int irq_ch, void *devid)
2884{
2885 struct blogic_adapter *adapter = (struct blogic_adapter *) devid;
2886 unsigned long processor_flag;
2887 /*
2888 Acquire exclusive access to Host Adapter.
2889 */
2890 spin_lock_irqsave(adapter->scsi_host->host_lock, processor_flag);
2891 /*
2892 Handle Interrupts appropriately for each Host Adapter type.
2893 */
2894 if (blogic_multimaster_type(adapter)) {
2895 union blogic_int_reg intreg;
2896 /*
2897 Read the Host Adapter Interrupt Register.
2898 */
2899 intreg.all = blogic_rdint(adapter);
2900 if (intreg.ir.int_valid) {
2901 /*
2902 Acknowledge the interrupt and reset the Host Adapter
2903 Interrupt Register.
2904 */
2905 blogic_intreset(adapter);
2906 /*
2907 Process valid External SCSI Bus Reset and Incoming
2908 Mailbox Loaded Interrupts. Command Complete
2909 Interrupts are noted, and Outgoing Mailbox Available
2910 Interrupts are ignored, as they are never enabled.
2911 */
2912 if (intreg.ir.ext_busreset)
2913 adapter->adapter_extreset = true;
2914 else if (intreg.ir.mailin_loaded)
2915 blogic_scan_inbox(adapter);
2916 else if (intreg.ir.cmd_complete)
2917 adapter->adapter_cmd_complete = true;
2918 }
2919 } else {
2920 /*
2921 Check if there is a pending interrupt for this Host Adapter.
2922 */
2923 if (FlashPoint_InterruptPending(adapter->cardhandle))
2924 switch (FlashPoint_HandleInterrupt(adapter->cardhandle)) {
2925 case FPOINT_NORMAL_INT:
2926 break;
2927 case FPOINT_EXT_RESET:
2928 adapter->adapter_extreset = true;
2929 break;
2930 case FPOINT_INTERN_ERR:
2931 blogic_warn("Internal FlashPoint Error detected - Resetting Host Adapter\n", adapter);
2932 adapter->adapter_intern_err = true;
2933 break;
2934 }
2935 }
2936 /*
2937 Process any completed CCBs.
2938 */
2939 if (adapter->firstccb != NULL)
2940 blogic_process_ccbs(adapter);
2941 /*
2942 Reset the Host Adapter if requested.
2943 */
2944 if (adapter->adapter_extreset) {
2945 blogic_warn("Resetting %s due to External SCSI Bus Reset\n", adapter, adapter->full_model);
2946 blogic_inc_count(&adapter->ext_resets);
2947 blogic_resetadapter(adapter, false);
2948 adapter->adapter_extreset = false;
2949 } else if (adapter->adapter_intern_err) {
2950 blogic_warn("Resetting %s due to Host Adapter Internal Error\n", adapter, adapter->full_model);
2951 blogic_inc_count(&adapter->adapter_intern_errors);
2952 blogic_resetadapter(adapter, true);
2953 adapter->adapter_intern_err = false;
2954 }
2955 /*
2956 Release exclusive access to Host Adapter.
2957 */
2958 spin_unlock_irqrestore(adapter->scsi_host->host_lock, processor_flag);
2959 return IRQ_HANDLED;
2960}
2961
2962
2963/*
2964 blogic_write_outbox places CCB and Action Code into an Outgoing
2965 Mailbox for execution by Host Adapter. The Host Adapter's Lock should
2966 already have been acquired by the caller.
2967*/
2968
2969static bool blogic_write_outbox(struct blogic_adapter *adapter,
2970 enum blogic_action action, struct blogic_ccb *ccb)
2971{
2972 struct blogic_outbox *next_outbox;
2973
2974 next_outbox = adapter->next_outbox;
2975 if (next_outbox->action == BLOGIC_OUTBOX_FREE) {
2976 ccb->status = BLOGIC_CCB_ACTIVE;
2977 /*
2978 The CCB field must be written before the Action Code field
2979 since the Host Adapter is operating asynchronously and the
2980 locking code does not protect against simultaneous access
2981 by the Host Adapter.
2982 */
2983 next_outbox->ccb = ccb->dma_handle;
2984 next_outbox->action = action;
2985 blogic_execmbox(adapter);
2986 if (++next_outbox > adapter->last_outbox)
2987 next_outbox = adapter->first_outbox;
2988 adapter->next_outbox = next_outbox;
2989 if (action == BLOGIC_MBOX_START) {
2990 adapter->active_cmds[ccb->tgt_id]++;
2991 if (ccb->opcode != BLOGIC_BDR)
2992 adapter->tgt_stats[ccb->tgt_id].cmds_tried++;
2993 }
2994 return true;
2995 }
2996 return false;
2997}
2998
2999/* Error Handling (EH) support */
3000
3001static int blogic_hostreset(struct scsi_cmnd *SCpnt)
3002{
3003 struct blogic_adapter *adapter =
3004 (struct blogic_adapter *) SCpnt->device->host->hostdata;
3005
3006 unsigned int id = SCpnt->device->id;
3007 struct blogic_tgt_stats *stats = &adapter->tgt_stats[id];
3008 int rc;
3009
3010 spin_lock_irq(SCpnt->device->host->host_lock);
3011
3012 blogic_inc_count(&stats->adatper_reset_req);
3013
3014 rc = blogic_resetadapter(adapter, false);
3015 spin_unlock_irq(SCpnt->device->host->host_lock);
3016 return rc;
3017}
3018
3019/*
3020 blogic_qcmd creates a CCB for Command and places it into an
3021 Outgoing Mailbox for execution by the associated Host Adapter.
3022*/
3023
3024static int blogic_qcmd_lck(struct scsi_cmnd *command,
3025 void (*comp_cb) (struct scsi_cmnd *))
3026{
3027 struct blogic_adapter *adapter =
3028 (struct blogic_adapter *) command->device->host->hostdata;
3029 struct blogic_tgt_flags *tgt_flags =
3030 &adapter->tgt_flags[command->device->id];
3031 struct blogic_tgt_stats *tgt_stats = adapter->tgt_stats;
3032 unsigned char *cdb = command->cmnd;
3033 int cdblen = command->cmd_len;
3034 int tgt_id = command->device->id;
3035 int lun = command->device->lun;
3036 int buflen = scsi_bufflen(command);
3037 int count;
3038 struct blogic_ccb *ccb;
3039 dma_addr_t sense_buf;
3040
3041 /*
3042 SCSI REQUEST_SENSE commands will be executed automatically by the
3043 Host Adapter for any errors, so they should not be executed
3044 explicitly unless the Sense Data is zero indicating that no error
3045 occurred.
3046 */
3047 if (cdb[0] == REQUEST_SENSE && command->sense_buffer[0] != 0) {
3048 command->result = DID_OK << 16;
3049 comp_cb(command);
3050 return 0;
3051 }
3052 /*
3053 Allocate a CCB from the Host Adapter's free list. In the unlikely
3054 event that there are none available and memory allocation fails,
3055 wait 1 second and try again. If that fails, the Host Adapter is
3056 probably hung so signal an error as a Host Adapter Hard Reset
3057 should be initiated soon.
3058 */
3059 ccb = blogic_alloc_ccb(adapter);
3060 if (ccb == NULL) {
3061 spin_unlock_irq(adapter->scsi_host->host_lock);
3062 blogic_delay(1);
3063 spin_lock_irq(adapter->scsi_host->host_lock);
3064 ccb = blogic_alloc_ccb(adapter);
3065 if (ccb == NULL) {
3066 command->result = DID_ERROR << 16;
3067 comp_cb(command);
3068 return 0;
3069 }
3070 }
3071
3072 /*
3073 Initialize the fields in the BusLogic Command Control Block (CCB).
3074 */
3075 count = scsi_dma_map(command);
3076 BUG_ON(count < 0);
3077 if (count) {
3078 struct scatterlist *sg;
3079 int i;
3080
3081 ccb->opcode = BLOGIC_INITIATOR_CCB_SG;
3082 ccb->datalen = count * sizeof(struct blogic_sg_seg);
3083 if (blogic_multimaster_type(adapter))
3084 ccb->data = (void *)((unsigned int) ccb->dma_handle +
3085 ((unsigned long) &ccb->sglist -
3086 (unsigned long) ccb));
3087 else
3088 ccb->data = ccb->sglist;
3089
3090 scsi_for_each_sg(command, sg, count, i) {
3091 ccb->sglist[i].segbytes = sg_dma_len(sg);
3092 ccb->sglist[i].segdata = sg_dma_address(sg);
3093 }
3094 } else if (!count) {
3095 ccb->opcode = BLOGIC_INITIATOR_CCB;
3096 ccb->datalen = buflen;
3097 ccb->data = 0;
3098 }
3099
3100 switch (cdb[0]) {
3101 case READ_6:
3102 case READ_10:
3103 ccb->datadir = BLOGIC_DATAIN_CHECKED;
3104 tgt_stats[tgt_id].read_cmds++;
3105 blogic_addcount(&tgt_stats[tgt_id].bytesread, buflen);
3106 blogic_incszbucket(tgt_stats[tgt_id].read_sz_buckets, buflen);
3107 break;
3108 case WRITE_6:
3109 case WRITE_10:
3110 ccb->datadir = BLOGIC_DATAOUT_CHECKED;
3111 tgt_stats[tgt_id].write_cmds++;
3112 blogic_addcount(&tgt_stats[tgt_id].byteswritten, buflen);
3113 blogic_incszbucket(tgt_stats[tgt_id].write_sz_buckets, buflen);
3114 break;
3115 default:
3116 ccb->datadir = BLOGIC_UNCHECKED_TX;
3117 break;
3118 }
3119 ccb->cdblen = cdblen;
3120 ccb->adapter_status = 0;
3121 ccb->tgt_status = 0;
3122 ccb->tgt_id = tgt_id;
3123 ccb->lun = lun;
3124 ccb->tag_enable = false;
3125 ccb->legacytag_enable = false;
3126 /*
3127 BusLogic recommends that after a Reset the first couple of
3128 commands that are sent to a Target Device be sent in a non
3129 Tagged Queue fashion so that the Host Adapter and Target Device
3130 can establish Synchronous and Wide Transfer before Queue Tag
3131 messages can interfere with the Synchronous and Wide Negotiation
3132 messages. By waiting to enable Tagged Queuing until after the
3133 first BLOGIC_MAX_TAG_DEPTH commands have been queued, it is
3134 assured that after a Reset any pending commands are requeued
3135 before Tagged Queuing is enabled and that the Tagged Queuing
3136 message will not occur while the partition table is being printed.
3137 In addition, some devices do not properly handle the transition
3138 from non-tagged to tagged commands, so it is necessary to wait
3139 until there are no pending commands for a target device
3140 before queuing tagged commands.
3141 */
3142 if (adapter->cmds_since_rst[tgt_id]++ >= BLOGIC_MAX_TAG_DEPTH &&
3143 !tgt_flags->tagq_active &&
3144 adapter->active_cmds[tgt_id] == 0
3145 && tgt_flags->tagq_ok &&
3146 (adapter->tagq_ok & (1 << tgt_id))) {
3147 tgt_flags->tagq_active = true;
3148 blogic_notice("Tagged Queuing now active for Target %d\n",
3149 adapter, tgt_id);
3150 }
3151 if (tgt_flags->tagq_active) {
3152 enum blogic_queuetag queuetag = BLOGIC_SIMPLETAG;
3153 /*
3154 When using Tagged Queuing with Simple Queue Tags, it
3155 appears that disk drive controllers do not guarantee that
3156 a queued command will not remain in a disconnected state
3157 indefinitely if commands that read or write nearer the
3158 head position continue to arrive without interruption.
3159 Therefore, for each Target Device this driver keeps track
3160 of the last time either the queue was empty or an Ordered
3161 Queue Tag was issued. If more than 4 seconds (one fifth
3162 of the 20 second disk timeout) have elapsed since this
3163 last sequence point, this command will be issued with an
3164 Ordered Queue Tag rather than a Simple Queue Tag, which
3165 forces the Target Device to complete all previously
3166 queued commands before this command may be executed.
3167 */
3168 if (adapter->active_cmds[tgt_id] == 0)
3169 adapter->last_seqpoint[tgt_id] = jiffies;
3170 else if (time_after(jiffies,
3171 adapter->last_seqpoint[tgt_id] + 4 * HZ)) {
3172 adapter->last_seqpoint[tgt_id] = jiffies;
3173 queuetag = BLOGIC_ORDEREDTAG;
3174 }
3175 if (adapter->ext_lun) {
3176 ccb->tag_enable = true;
3177 ccb->queuetag = queuetag;
3178 } else {
3179 ccb->legacytag_enable = true;
3180 ccb->legacy_tag = queuetag;
3181 }
3182 }
3183 memcpy(ccb->cdb, cdb, cdblen);
3184 ccb->sense_datalen = SCSI_SENSE_BUFFERSIZE;
3185 ccb->command = command;
3186 sense_buf = pci_map_single(adapter->pci_device,
3187 command->sense_buffer, ccb->sense_datalen,
3188 PCI_DMA_FROMDEVICE);
3189 if (dma_mapping_error(&adapter->pci_device->dev, sense_buf)) {
3190 blogic_err("DMA mapping for sense data buffer failed\n",
3191 adapter);
3192 blogic_dealloc_ccb(ccb, 0);
3193 return SCSI_MLQUEUE_HOST_BUSY;
3194 }
3195 ccb->sensedata = sense_buf;
3196 command->scsi_done = comp_cb;
3197 if (blogic_multimaster_type(adapter)) {
3198 /*
3199 Place the CCB in an Outgoing Mailbox. The higher levels
3200 of the SCSI Subsystem should not attempt to queue more
3201 commands than can be placed in Outgoing Mailboxes, so
3202 there should always be one free. In the unlikely event
3203 that there are none available, wait 1 second and try
3204 again. If that fails, the Host Adapter is probably hung
3205 so signal an error as a Host Adapter Hard Reset should
3206 be initiated soon.
3207 */
3208 if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START, ccb)) {
3209 spin_unlock_irq(adapter->scsi_host->host_lock);
3210 blogic_warn("Unable to write Outgoing Mailbox - " "Pausing for 1 second\n", adapter);
3211 blogic_delay(1);
3212 spin_lock_irq(adapter->scsi_host->host_lock);
3213 if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START,
3214 ccb)) {
3215 blogic_warn("Still unable to write Outgoing Mailbox - " "Host Adapter Dead?\n", adapter);
3216 blogic_dealloc_ccb(ccb, 1);
3217 command->result = DID_ERROR << 16;
3218 command->scsi_done(command);
3219 }
3220 }
3221 } else {
3222 /*
3223 Call the FlashPoint SCCB Manager to start execution of
3224 the CCB.
3225 */
3226 ccb->status = BLOGIC_CCB_ACTIVE;
3227 adapter->active_cmds[tgt_id]++;
3228 tgt_stats[tgt_id].cmds_tried++;
3229 FlashPoint_StartCCB(adapter->cardhandle, ccb);
3230 /*
3231 The Command may have already completed and
3232 blogic_qcompleted_ccb been called, or it may still be
3233 pending.
3234 */
3235 if (ccb->status == BLOGIC_CCB_COMPLETE)
3236 blogic_process_ccbs(adapter);
3237 }
3238 return 0;
3239}
3240
3241static DEF_SCSI_QCMD(blogic_qcmd)
3242
3243#if 0
3244/*
3245 blogic_abort aborts Command if possible.
3246*/
3247
3248static int blogic_abort(struct scsi_cmnd *command)
3249{
3250 struct blogic_adapter *adapter =
3251 (struct blogic_adapter *) command->device->host->hostdata;
3252
3253 int tgt_id = command->device->id;
3254 struct blogic_ccb *ccb;
3255 blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_request);
3256
3257 /*
3258 Attempt to find an Active CCB for this Command. If no Active
3259 CCB for this Command is found, then no Abort is necessary.
3260 */
3261 for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
3262 if (ccb->command == command)
3263 break;
3264 if (ccb == NULL) {
3265 blogic_warn("Unable to Abort Command to Target %d - No CCB Found\n", adapter, tgt_id);
3266 return SUCCESS;
3267 } else if (ccb->status == BLOGIC_CCB_COMPLETE) {
3268 blogic_warn("Unable to Abort Command to Target %d - CCB Completed\n", adapter, tgt_id);
3269 return SUCCESS;
3270 } else if (ccb->status == BLOGIC_CCB_RESET) {
3271 blogic_warn("Unable to Abort Command to Target %d - CCB Reset\n", adapter, tgt_id);
3272 return SUCCESS;
3273 }
3274 if (blogic_multimaster_type(adapter)) {
3275 /*
3276 Attempt to Abort this CCB. MultiMaster Firmware versions
3277 prior to 5.xx do not generate Abort Tag messages, but only
3278 generate the non-tagged Abort message. Since non-tagged
3279 commands are not sent by the Host Adapter until the queue
3280 of outstanding tagged commands has completed, and the
3281 Abort message is treated as a non-tagged command, it is
3282 effectively impossible to abort commands when Tagged
3283 Queuing is active. Firmware version 5.xx does generate
3284 Abort Tag messages, so it is possible to abort commands
3285 when Tagged Queuing is active.
3286 */
3287 if (adapter->tgt_flags[tgt_id].tagq_active &&
3288 adapter->fw_ver[0] < '5') {
3289 blogic_warn("Unable to Abort CCB #%ld to Target %d - Abort Tag Not Supported\n", adapter, ccb->serial, tgt_id);
3290 return FAILURE;
3291 } else if (blogic_write_outbox(adapter, BLOGIC_MBOX_ABORT,
3292 ccb)) {
3293 blogic_warn("Aborting CCB #%ld to Target %d\n",
3294 adapter, ccb->serial, tgt_id);
3295 blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried);
3296 return SUCCESS;
3297 } else {
3298 blogic_warn("Unable to Abort CCB #%ld to Target %d - No Outgoing Mailboxes\n", adapter, ccb->serial, tgt_id);
3299 return FAILURE;
3300 }
3301 } else {
3302 /*
3303 Call the FlashPoint SCCB Manager to abort execution of
3304 the CCB.
3305 */
3306 blogic_warn("Aborting CCB #%ld to Target %d\n", adapter,
3307 ccb->serial, tgt_id);
3308 blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried);
3309 FlashPoint_AbortCCB(adapter->cardhandle, ccb);
3310 /*
3311 The Abort may have already been completed and
3312 blogic_qcompleted_ccb been called, or it
3313 may still be pending.
3314 */
3315 if (ccb->status == BLOGIC_CCB_COMPLETE)
3316 blogic_process_ccbs(adapter);
3317 return SUCCESS;
3318 }
3319 return SUCCESS;
3320}
3321
3322#endif
3323/*
3324 blogic_resetadapter resets Host Adapter if possible, marking all
3325 currently executing SCSI Commands as having been Reset.
3326*/
3327
3328static int blogic_resetadapter(struct blogic_adapter *adapter, bool hard_reset)
3329{
3330 struct blogic_ccb *ccb;
3331 int tgt_id;
3332
3333 /*
3334 * Attempt to Reset and Reinitialize the Host Adapter.
3335 */
3336
3337 if (!(blogic_hwreset(adapter, hard_reset) &&
3338 blogic_initadapter(adapter))) {
3339 blogic_err("Resetting %s Failed\n", adapter,
3340 adapter->full_model);
3341 return FAILURE;
3342 }
3343
3344 /*
3345 * Deallocate all currently executing CCBs.
3346 */
3347
3348 for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
3349 if (ccb->status == BLOGIC_CCB_ACTIVE)
3350 blogic_dealloc_ccb(ccb, 1);
3351 /*
3352 * Wait a few seconds between the Host Adapter Hard Reset which
3353 * initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
3354 * SCSI devices get confused if they receive SCSI Commands too soon
3355 * after a SCSI Bus Reset.
3356 */
3357
3358 if (hard_reset) {
3359 spin_unlock_irq(adapter->scsi_host->host_lock);
3360 blogic_delay(adapter->bus_settle_time);
3361 spin_lock_irq(adapter->scsi_host->host_lock);
3362 }
3363
3364 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) {
3365 adapter->last_resettried[tgt_id] = jiffies;
3366 adapter->last_resetdone[tgt_id] = jiffies;
3367 }
3368 return SUCCESS;
3369}
3370
3371/*
3372 blogic_diskparam returns the Heads/Sectors/Cylinders BIOS Disk
3373 Parameters for Disk. The default disk geometry is 64 heads, 32 sectors, and
3374 the appropriate number of cylinders so as not to exceed drive capacity. In
3375 order for disks equal to or larger than 1 GB to be addressable by the BIOS
3376 without exceeding the BIOS limitation of 1024 cylinders, Extended Translation
3377 may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C"
3378 series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A"
3379 series MultiMaster Host Adapters. With Extended Translation enabled, drives
3380 between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128
3381 heads and 32 sectors, and drives above 2 GB inclusive are given a disk
3382 geometry of 255 heads and 63 sectors. However, if the BIOS detects that the
3383 Extended Translation setting does not match the geometry in the partition
3384 table, then the translation inferred from the partition table will be used by
3385 the BIOS, and a warning may be displayed.
3386*/
3387
3388static int blogic_diskparam(struct scsi_device *sdev, struct block_device *dev,
3389 sector_t capacity, int *params)
3390{
3391 struct blogic_adapter *adapter =
3392 (struct blogic_adapter *) sdev->host->hostdata;
3393 struct bios_diskparam *diskparam = (struct bios_diskparam *) params;
3394 unsigned char *buf;
3395
3396 if (adapter->ext_trans_enable && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */) {
3397 if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */) {
3398 diskparam->heads = 255;
3399 diskparam->sectors = 63;
3400 } else {
3401 diskparam->heads = 128;
3402 diskparam->sectors = 32;
3403 }
3404 } else {
3405 diskparam->heads = 64;
3406 diskparam->sectors = 32;
3407 }
3408 diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors);
3409 buf = scsi_bios_ptable(dev);
3410 if (buf == NULL)
3411 return 0;
3412 /*
3413 If the boot sector partition table flag is valid, search for
3414 a partition table entry whose end_head matches one of the
3415 standard BusLogic geometry translations (64/32, 128/32, or 255/63).
3416 */
3417 if (*(unsigned short *) (buf + 64) == 0xAA55) {
3418 struct partition *part1_entry = (struct partition *) buf;
3419 struct partition *part_entry = part1_entry;
3420 int saved_cyl = diskparam->cylinders, part_no;
3421 unsigned char part_end_head = 0, part_end_sector = 0;
3422
3423 for (part_no = 0; part_no < 4; part_no++) {
3424 part_end_head = part_entry->end_head;
3425 part_end_sector = part_entry->end_sector & 0x3F;
3426 if (part_end_head == 64 - 1) {
3427 diskparam->heads = 64;
3428 diskparam->sectors = 32;
3429 break;
3430 } else if (part_end_head == 128 - 1) {
3431 diskparam->heads = 128;
3432 diskparam->sectors = 32;
3433 break;
3434 } else if (part_end_head == 255 - 1) {
3435 diskparam->heads = 255;
3436 diskparam->sectors = 63;
3437 break;
3438 }
3439 part_entry++;
3440 }
3441 if (part_no == 4) {
3442 part_end_head = part1_entry->end_head;
3443 part_end_sector = part1_entry->end_sector & 0x3F;
3444 }
3445 diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors);
3446 if (part_no < 4 && part_end_sector == diskparam->sectors) {
3447 if (diskparam->cylinders != saved_cyl)
3448 blogic_warn("Adopting Geometry %d/%d from Partition Table\n", adapter, diskparam->heads, diskparam->sectors);
3449 } else if (part_end_head > 0 || part_end_sector > 0) {
3450 blogic_warn("Warning: Partition Table appears to " "have Geometry %d/%d which is\n", adapter, part_end_head + 1, part_end_sector);
3451 blogic_warn("not compatible with current BusLogic " "Host Adapter Geometry %d/%d\n", adapter, diskparam->heads, diskparam->sectors);
3452 }
3453 }
3454 kfree(buf);
3455 return 0;
3456}
3457
3458
3459/*
3460 BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>.
3461*/
3462
3463static int blogic_write_info(struct Scsi_Host *shost, char *procbuf,
3464 int bytes_avail)
3465{
3466 struct blogic_adapter *adapter =
3467 (struct blogic_adapter *) shost->hostdata;
3468 struct blogic_tgt_stats *tgt_stats;
3469
3470 tgt_stats = adapter->tgt_stats;
3471 adapter->ext_resets = 0;
3472 adapter->adapter_intern_errors = 0;
3473 memset(tgt_stats, 0, BLOGIC_MAXDEV * sizeof(struct blogic_tgt_stats));
3474 return 0;
3475}
3476
3477static int blogic_show_info(struct seq_file *m, struct Scsi_Host *shost)
3478{
3479 struct blogic_adapter *adapter = (struct blogic_adapter *) shost->hostdata;
3480 struct blogic_tgt_stats *tgt_stats;
3481 int tgt;
3482
3483 tgt_stats = adapter->tgt_stats;
3484 seq_write(m, adapter->msgbuf, adapter->msgbuflen);
3485 seq_printf(m, "\n\
3486Current Driver Queue Depth: %d\n\
3487Currently Allocated CCBs: %d\n", adapter->drvr_qdepth, adapter->alloc_ccbs);
3488 seq_printf(m, "\n\n\
3489 DATA TRANSFER STATISTICS\n\
3490\n\
3491Target Tagged Queuing Queue Depth Active Attempted Completed\n\
3492====== ============== =========== ====== ========= =========\n");
3493 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3494 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3495 if (!tgt_flags->tgt_exists)
3496 continue;
3497 seq_printf(m, " %2d %s", tgt, (tgt_flags->tagq_ok ? (tgt_flags->tagq_active ? " Active" : (adapter->tagq_ok & (1 << tgt)
3498 ? " Permitted" : " Disabled"))
3499 : "Not Supported"));
3500 seq_printf(m,
3501 " %3d %3u %9u %9u\n", adapter->qdepth[tgt], adapter->active_cmds[tgt], tgt_stats[tgt].cmds_tried, tgt_stats[tgt].cmds_complete);
3502 }
3503 seq_printf(m, "\n\
3504Target Read Commands Write Commands Total Bytes Read Total Bytes Written\n\
3505====== ============= ============== =================== ===================\n");
3506 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3507 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3508 if (!tgt_flags->tgt_exists)
3509 continue;
3510 seq_printf(m, " %2d %9u %9u", tgt, tgt_stats[tgt].read_cmds, tgt_stats[tgt].write_cmds);
3511 if (tgt_stats[tgt].bytesread.billions > 0)
3512 seq_printf(m, " %9u%09u", tgt_stats[tgt].bytesread.billions, tgt_stats[tgt].bytesread.units);
3513 else
3514 seq_printf(m, " %9u", tgt_stats[tgt].bytesread.units);
3515 if (tgt_stats[tgt].byteswritten.billions > 0)
3516 seq_printf(m, " %9u%09u\n", tgt_stats[tgt].byteswritten.billions, tgt_stats[tgt].byteswritten.units);
3517 else
3518 seq_printf(m, " %9u\n", tgt_stats[tgt].byteswritten.units);
3519 }
3520 seq_printf(m, "\n\
3521Target Command 0-1KB 1-2KB 2-4KB 4-8KB 8-16KB\n\
3522====== ======= ========= ========= ========= ========= =========\n");
3523 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3524 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3525 if (!tgt_flags->tgt_exists)
3526 continue;
3527 seq_printf(m,
3528 " %2d Read %9u %9u %9u %9u %9u\n", tgt,
3529 tgt_stats[tgt].read_sz_buckets[0],
3530 tgt_stats[tgt].read_sz_buckets[1], tgt_stats[tgt].read_sz_buckets[2], tgt_stats[tgt].read_sz_buckets[3], tgt_stats[tgt].read_sz_buckets[4]);
3531 seq_printf(m,
3532 " %2d Write %9u %9u %9u %9u %9u\n", tgt,
3533 tgt_stats[tgt].write_sz_buckets[0],
3534 tgt_stats[tgt].write_sz_buckets[1], tgt_stats[tgt].write_sz_buckets[2], tgt_stats[tgt].write_sz_buckets[3], tgt_stats[tgt].write_sz_buckets[4]);
3535 }
3536 seq_printf(m, "\n\
3537Target Command 16-32KB 32-64KB 64-128KB 128-256KB 256KB+\n\
3538====== ======= ========= ========= ========= ========= =========\n");
3539 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3540 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3541 if (!tgt_flags->tgt_exists)
3542 continue;
3543 seq_printf(m,
3544 " %2d Read %9u %9u %9u %9u %9u\n", tgt,
3545 tgt_stats[tgt].read_sz_buckets[5],
3546 tgt_stats[tgt].read_sz_buckets[6], tgt_stats[tgt].read_sz_buckets[7], tgt_stats[tgt].read_sz_buckets[8], tgt_stats[tgt].read_sz_buckets[9]);
3547 seq_printf(m,
3548 " %2d Write %9u %9u %9u %9u %9u\n", tgt,
3549 tgt_stats[tgt].write_sz_buckets[5],
3550 tgt_stats[tgt].write_sz_buckets[6], tgt_stats[tgt].write_sz_buckets[7], tgt_stats[tgt].write_sz_buckets[8], tgt_stats[tgt].write_sz_buckets[9]);
3551 }
3552 seq_printf(m, "\n\n\
3553 ERROR RECOVERY STATISTICS\n\
3554\n\
3555 Command Aborts Bus Device Resets Host Adapter Resets\n\
3556Target Requested Completed Requested Completed Requested Completed\n\
3557 ID \\\\\\\\ Attempted //// \\\\\\\\ Attempted //// \\\\\\\\ Attempted ////\n\
3558====== ===== ===== ===== ===== ===== ===== ===== ===== =====\n");
3559 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3560 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3561 if (!tgt_flags->tgt_exists)
3562 continue;
3563 seq_printf(m, "\
3564 %2d %5d %5d %5d %5d %5d %5d %5d %5d %5d\n", tgt, tgt_stats[tgt].aborts_request, tgt_stats[tgt].aborts_tried, tgt_stats[tgt].aborts_done, tgt_stats[tgt].bdr_request, tgt_stats[tgt].bdr_tried, tgt_stats[tgt].bdr_done, tgt_stats[tgt].adatper_reset_req, tgt_stats[tgt].adapter_reset_attempt, tgt_stats[tgt].adapter_reset_done);
3565 }
3566 seq_printf(m, "\nExternal Host Adapter Resets: %d\n", adapter->ext_resets);
3567 seq_printf(m, "Host Adapter Internal Errors: %d\n", adapter->adapter_intern_errors);
3568 return 0;
3569}
3570
3571
3572/*
3573 blogic_msg prints Driver Messages.
3574*/
3575
3576static void blogic_msg(enum blogic_msglevel msglevel, char *fmt,
3577 struct blogic_adapter *adapter, ...)
3578{
3579 static char buf[BLOGIC_LINEBUF_SIZE];
3580 static bool begin = true;
3581 va_list args;
3582 int len = 0;
3583
3584 va_start(args, adapter);
3585 len = vsprintf(buf, fmt, args);
3586 va_end(args);
3587 if (msglevel == BLOGIC_ANNOUNCE_LEVEL) {
3588 static int msglines = 0;
3589 strcpy(&adapter->msgbuf[adapter->msgbuflen], buf);
3590 adapter->msgbuflen += len;
3591 if (++msglines <= 2)
3592 printk("%sscsi: %s", blogic_msglevelmap[msglevel], buf);
3593 } else if (msglevel == BLOGIC_INFO_LEVEL) {
3594 strcpy(&adapter->msgbuf[adapter->msgbuflen], buf);
3595 adapter->msgbuflen += len;
3596 if (begin) {
3597 if (buf[0] != '\n' || len > 1)
3598 printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf);
3599 } else
3600 printk("%s", buf);
3601 } else {
3602 if (begin) {
3603 if (adapter != NULL && adapter->adapter_initd)
3604 printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf);
3605 else
3606 printk("%s%s", blogic_msglevelmap[msglevel], buf);
3607 } else
3608 printk("%s", buf);
3609 }
3610 begin = (buf[len - 1] == '\n');
3611}
3612
3613
3614/*
3615 blogic_parse parses an individual option keyword. It returns true
3616 and updates the pointer if the keyword is recognized and false otherwise.
3617*/
3618
3619static bool __init blogic_parse(char **str, char *keyword)
3620{
3621 char *pointer = *str;
3622 while (*keyword != '\0') {
3623 char strch = *pointer++;
3624 char keywordch = *keyword++;
3625 if (strch >= 'A' && strch <= 'Z')
3626 strch += 'a' - 'Z';
3627 if (keywordch >= 'A' && keywordch <= 'Z')
3628 keywordch += 'a' - 'Z';
3629 if (strch != keywordch)
3630 return false;
3631 }
3632 *str = pointer;
3633 return true;
3634}
3635
3636
3637/*
3638 blogic_parseopts handles processing of BusLogic Driver Options
3639 specifications.
3640
3641 BusLogic Driver Options may be specified either via the Linux Kernel Command
3642 Line or via the Loadable Kernel Module Installation Facility. Driver Options
3643 for multiple host adapters may be specified either by separating the option
3644 strings by a semicolon, or by specifying multiple "BusLogic=" strings on the
3645 command line. Individual option specifications for a single host adapter are
3646 separated by commas. The Probing and Debugging Options apply to all host
3647 adapters whereas the remaining options apply individually only to the
3648 selected host adapter.
3649
3650 The BusLogic Driver Probing Options are described in
3651 <file:Documentation/scsi/BusLogic.txt>.
3652*/
3653
3654static int __init blogic_parseopts(char *options)
3655{
3656 while (true) {
3657 struct blogic_drvr_options *drvr_opts =
3658 &blogic_drvr_options[blogic_drvr_options_count++];
3659 int tgt_id;
3660
3661 memset(drvr_opts, 0, sizeof(struct blogic_drvr_options));
3662 while (*options != '\0' && *options != ';') {
3663 /* Probing Options. */
3664 if (blogic_parse(&options, "IO:")) {
3665 unsigned long io_addr = simple_strtoul(options,
3666 &options, 0);
3667 blogic_probe_options.limited_isa = true;
3668 switch (io_addr) {
3669 case 0x330:
3670 blogic_probe_options.probe330 = true;
3671 break;
3672 case 0x334:
3673 blogic_probe_options.probe334 = true;
3674 break;
3675 case 0x230:
3676 blogic_probe_options.probe230 = true;
3677 break;
3678 case 0x234:
3679 blogic_probe_options.probe234 = true;
3680 break;
3681 case 0x130:
3682 blogic_probe_options.probe130 = true;
3683 break;
3684 case 0x134:
3685 blogic_probe_options.probe134 = true;
3686 break;
3687 default:
3688 blogic_err("BusLogic: Invalid Driver Options " "(invalid I/O Address 0x%X)\n", NULL, io_addr);
3689 return 0;
3690 }
3691 } else if (blogic_parse(&options, "NoProbeISA"))
3692 blogic_probe_options.noprobe_isa = true;
3693 else if (blogic_parse(&options, "NoProbePCI"))
3694 blogic_probe_options.noprobe_pci = true;
3695 else if (blogic_parse(&options, "NoProbe"))
3696 blogic_probe_options.noprobe = true;
3697 else if (blogic_parse(&options, "NoSortPCI"))
3698 blogic_probe_options.nosort_pci = true;
3699 else if (blogic_parse(&options, "MultiMasterFirst"))
3700 blogic_probe_options.multimaster_first = true;
3701 else if (blogic_parse(&options, "FlashPointFirst"))
3702 blogic_probe_options.flashpoint_first = true;
3703 /* Tagged Queuing Options. */
3704 else if (blogic_parse(&options, "QueueDepth:[") ||
3705 blogic_parse(&options, "QD:[")) {
3706 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
3707 unsigned short qdepth = simple_strtoul(options, &options, 0);
3708 if (qdepth > BLOGIC_MAX_TAG_DEPTH) {
3709 blogic_err("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, qdepth);
3710 return 0;
3711 }
3712 drvr_opts->qdepth[tgt_id] = qdepth;
3713 if (*options == ',')
3714 options++;
3715 else if (*options == ']')
3716 break;
3717 else {
3718 blogic_err("BusLogic: Invalid Driver Options " "(',' or ']' expected at '%s')\n", NULL, options);
3719 return 0;
3720 }
3721 }
3722 if (*options != ']') {
3723 blogic_err("BusLogic: Invalid Driver Options " "(']' expected at '%s')\n", NULL, options);
3724 return 0;
3725 } else
3726 options++;
3727 } else if (blogic_parse(&options, "QueueDepth:") || blogic_parse(&options, "QD:")) {
3728 unsigned short qdepth = simple_strtoul(options, &options, 0);
3729 if (qdepth == 0 ||
3730 qdepth > BLOGIC_MAX_TAG_DEPTH) {
3731 blogic_err("BusLogic: Invalid Driver Options " "(invalid Queue Depth %d)\n", NULL, qdepth);
3732 return 0;
3733 }
3734 drvr_opts->common_qdepth = qdepth;
3735 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++)
3736 drvr_opts->qdepth[tgt_id] = qdepth;
3737 } else if (blogic_parse(&options, "TaggedQueuing:") ||
3738 blogic_parse(&options, "TQ:")) {
3739 if (blogic_parse(&options, "Default")) {
3740 drvr_opts->tagq_ok = 0x0000;
3741 drvr_opts->tagq_ok_mask = 0x0000;
3742 } else if (blogic_parse(&options, "Enable")) {
3743 drvr_opts->tagq_ok = 0xFFFF;
3744 drvr_opts->tagq_ok_mask = 0xFFFF;
3745 } else if (blogic_parse(&options, "Disable")) {
3746 drvr_opts->tagq_ok = 0x0000;
3747 drvr_opts->tagq_ok_mask = 0xFFFF;
3748 } else {
3749 unsigned short tgt_bit;
3750 for (tgt_id = 0, tgt_bit = 1;
3751 tgt_id < BLOGIC_MAXDEV;
3752 tgt_id++, tgt_bit <<= 1)
3753 switch (*options++) {
3754 case 'Y':
3755 drvr_opts->tagq_ok |= tgt_bit;
3756 drvr_opts->tagq_ok_mask |= tgt_bit;
3757 break;
3758 case 'N':
3759 drvr_opts->tagq_ok &= ~tgt_bit;
3760 drvr_opts->tagq_ok_mask |= tgt_bit;
3761 break;
3762 case 'X':
3763 break;
3764 default:
3765 options--;
3766 tgt_id = BLOGIC_MAXDEV;
3767 break;
3768 }
3769 }
3770 }
3771 /* Miscellaneous Options. */
3772 else if (blogic_parse(&options, "BusSettleTime:") ||
3773 blogic_parse(&options, "BST:")) {
3774 unsigned short bus_settle_time =
3775 simple_strtoul(options, &options, 0);
3776 if (bus_settle_time > 5 * 60) {
3777 blogic_err("BusLogic: Invalid Driver Options " "(invalid Bus Settle Time %d)\n", NULL, bus_settle_time);
3778 return 0;
3779 }
3780 drvr_opts->bus_settle_time = bus_settle_time;
3781 } else if (blogic_parse(&options,
3782 "InhibitTargetInquiry"))
3783 drvr_opts->stop_tgt_inquiry = true;
3784 /* Debugging Options. */
3785 else if (blogic_parse(&options, "TraceProbe"))
3786 blogic_global_options.trace_probe = true;
3787 else if (blogic_parse(&options, "TraceHardwareReset"))
3788 blogic_global_options.trace_hw_reset = true;
3789 else if (blogic_parse(&options, "TraceConfiguration"))
3790 blogic_global_options.trace_config = true;
3791 else if (blogic_parse(&options, "TraceErrors"))
3792 blogic_global_options.trace_err = true;
3793 else if (blogic_parse(&options, "Debug")) {
3794 blogic_global_options.trace_probe = true;
3795 blogic_global_options.trace_hw_reset = true;
3796 blogic_global_options.trace_config = true;
3797 blogic_global_options.trace_err = true;
3798 }
3799 if (*options == ',')
3800 options++;
3801 else if (*options != ';' && *options != '\0') {
3802 blogic_err("BusLogic: Unexpected Driver Option '%s' " "ignored\n", NULL, options);
3803 *options = '\0';
3804 }
3805 }
3806 if (!(blogic_drvr_options_count == 0 ||
3807 blogic_probeinfo_count == 0 ||
3808 blogic_drvr_options_count == blogic_probeinfo_count)) {
3809 blogic_err("BusLogic: Invalid Driver Options " "(all or no I/O Addresses must be specified)\n", NULL);
3810 return 0;
3811 }
3812 /*
3813 Tagged Queuing is disabled when the Queue Depth is 1 since queuing
3814 multiple commands is not possible.
3815 */
3816 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++)
3817 if (drvr_opts->qdepth[tgt_id] == 1) {
3818 unsigned short tgt_bit = 1 << tgt_id;
3819 drvr_opts->tagq_ok &= ~tgt_bit;
3820 drvr_opts->tagq_ok_mask |= tgt_bit;
3821 }
3822 if (*options == ';')
3823 options++;
3824 if (*options == '\0')
3825 return 0;
3826 }
3827 return 1;
3828}
3829
3830/*
3831 Get it all started
3832*/
3833
3834static struct scsi_host_template blogic_template = {
3835 .module = THIS_MODULE,
3836 .proc_name = "BusLogic",
3837 .write_info = blogic_write_info,
3838 .show_info = blogic_show_info,
3839 .name = "BusLogic",
3840 .info = blogic_drvr_info,
3841 .queuecommand = blogic_qcmd,
3842 .slave_configure = blogic_slaveconfig,
3843 .bios_param = blogic_diskparam,
3844 .eh_host_reset_handler = blogic_hostreset,
3845#if 0
3846 .eh_abort_handler = blogic_abort,
3847#endif
3848 .unchecked_isa_dma = 1,
3849 .max_sectors = 128,
3850 .use_clustering = ENABLE_CLUSTERING,
3851};
3852
3853/*
3854 blogic_setup handles processing of Kernel Command Line Arguments.
3855*/
3856
3857static int __init blogic_setup(char *str)
3858{
3859 int ints[3];
3860
3861 (void) get_options(str, ARRAY_SIZE(ints), ints);
3862
3863 if (ints[0] != 0) {
3864 blogic_err("BusLogic: Obsolete Command Line Entry " "Format Ignored\n", NULL);
3865 return 0;
3866 }
3867 if (str == NULL || *str == '\0')
3868 return 0;
3869 return blogic_parseopts(str);
3870}
3871
3872/*
3873 * Exit function. Deletes all hosts associated with this driver.
3874 */
3875
3876static void __exit blogic_exit(void)
3877{
3878 struct blogic_adapter *ha, *next;
3879
3880 list_for_each_entry_safe(ha, next, &blogic_host_list, host_list)
3881 blogic_deladapter(ha);
3882}
3883
3884__setup("BusLogic=", blogic_setup);
3885
3886#ifdef MODULE
3887/*static struct pci_device_id blogic_pci_tbl[] = {
3888 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
3889 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3890 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
3891 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3892 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
3893 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3894 { }
3895};*/
3896static DEFINE_PCI_DEVICE_TABLE(blogic_pci_tbl) = {
3897 {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER)},
3898 {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC)},
3899 {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT)},
3900 {0, },
3901};
3902#endif
3903MODULE_DEVICE_TABLE(pci, blogic_pci_tbl);
3904
3905module_init(blogic_init);
3906module_exit(blogic_exit);
1// SPDX-License-Identifier: GPL-2.0-only
2
3/*
4
5 Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters
6
7 Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>
8
9
10 The author respectfully requests that any modifications to this software be
11 sent directly to him for evaluation and testing.
12
13 Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose
14 advice has been invaluable, to David Gentzel, for writing the original Linux
15 BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site.
16
17 Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB
18 Manager available as freely redistributable source code.
19
20*/
21
22#define blogic_drvr_version "2.1.17"
23#define blogic_drvr_date "12 September 2013"
24
25#include <linux/module.h>
26#include <linux/init.h>
27#include <linux/interrupt.h>
28#include <linux/types.h>
29#include <linux/blkdev.h>
30#include <linux/delay.h>
31#include <linux/ioport.h>
32#include <linux/mm.h>
33#include <linux/stat.h>
34#include <linux/pci.h>
35#include <linux/spinlock.h>
36#include <linux/jiffies.h>
37#include <linux/dma-mapping.h>
38#include <linux/slab.h>
39#include <linux/msdos_partition.h>
40#include <scsi/scsicam.h>
41
42#include <asm/dma.h>
43#include <asm/io.h>
44
45#include <scsi/scsi.h>
46#include <scsi/scsi_cmnd.h>
47#include <scsi/scsi_device.h>
48#include <scsi/scsi_host.h>
49#include <scsi/scsi_tcq.h>
50#include "BusLogic.h"
51#include "FlashPoint.c"
52
53#ifndef FAILURE
54#define FAILURE (-1)
55#endif
56
57static const struct scsi_host_template blogic_template;
58
59/*
60 blogic_drvr_options_count is a count of the number of BusLogic Driver
61 Options specifications provided via the Linux Kernel Command Line or via
62 the Loadable Kernel Module Installation Facility.
63*/
64
65static int blogic_drvr_options_count;
66
67
68/*
69 blogic_drvr_options is an array of Driver Options structures representing
70 BusLogic Driver Options specifications provided via the Linux Kernel Command
71 Line or via the Loadable Kernel Module Installation Facility.
72*/
73
74static struct blogic_drvr_options blogic_drvr_options[BLOGIC_MAX_ADAPTERS];
75
76
77/*
78 BusLogic can be assigned a string by insmod.
79*/
80
81MODULE_DESCRIPTION("BusLogic MultiMaster and FlashPoint SCSI Host Adapter driver");
82MODULE_LICENSE("GPL");
83#ifdef MODULE
84static char *BusLogic;
85module_param(BusLogic, charp, 0);
86#endif
87
88
89/*
90 blogic_probe_options is a set of Probe Options to be applied across
91 all BusLogic Host Adapters.
92*/
93
94static struct blogic_probe_options blogic_probe_options;
95
96
97/*
98 blogic_global_options is a set of Global Options to be applied across
99 all BusLogic Host Adapters.
100*/
101
102static struct blogic_global_options blogic_global_options;
103
104static LIST_HEAD(blogic_host_list);
105
106/*
107 blogic_probeinfo_count is the number of entries in blogic_probeinfo_list.
108*/
109
110static int blogic_probeinfo_count;
111
112
113/*
114 blogic_probeinfo_list is the list of I/O Addresses and Bus Probe Information
115 to be checked for potential BusLogic Host Adapters. It is initialized by
116 interrogating the PCI Configuration Space on PCI machines as well as from the
117 list of standard BusLogic I/O Addresses.
118*/
119
120static struct blogic_probeinfo *blogic_probeinfo_list;
121
122
123/*
124 blogic_cmd_failure_reason holds a string identifying the reason why a
125 call to blogic_cmd failed. It is only non-NULL when blogic_cmd
126 returns a failure code.
127*/
128
129static char *blogic_cmd_failure_reason;
130
131/*
132 blogic_announce_drvr announces the Driver Version and Date, Author's
133 Name, Copyright Notice, and Electronic Mail Address.
134*/
135
136static void blogic_announce_drvr(struct blogic_adapter *adapter)
137{
138 blogic_announce("***** BusLogic SCSI Driver Version " blogic_drvr_version " of " blogic_drvr_date " *****\n", adapter);
139 blogic_announce("Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>\n", adapter);
140}
141
142
143/*
144 blogic_drvr_info returns the Host Adapter Name to identify this SCSI
145 Driver and Host Adapter.
146*/
147
148static const char *blogic_drvr_info(struct Scsi_Host *host)
149{
150 struct blogic_adapter *adapter =
151 (struct blogic_adapter *) host->hostdata;
152 return adapter->full_model;
153}
154
155/*
156 blogic_init_ccbs initializes a group of Command Control Blocks (CCBs)
157 for Host Adapter from the blk_size bytes located at blk_pointer. The newly
158 created CCBs are added to Host Adapter's free list.
159*/
160
161static void blogic_init_ccbs(struct blogic_adapter *adapter, void *blk_pointer,
162 int blk_size, dma_addr_t blkp)
163{
164 struct blogic_ccb *ccb = (struct blogic_ccb *) blk_pointer;
165 unsigned int offset = 0;
166 memset(blk_pointer, 0, blk_size);
167 ccb->allocgrp_head = blkp;
168 ccb->allocgrp_size = blk_size;
169 while ((blk_size -= sizeof(struct blogic_ccb)) >= 0) {
170 ccb->status = BLOGIC_CCB_FREE;
171 ccb->adapter = adapter;
172 ccb->dma_handle = (u32) blkp + offset;
173 if (blogic_flashpoint_type(adapter)) {
174 ccb->callback = blogic_qcompleted_ccb;
175 ccb->base_addr = adapter->fpinfo.base_addr;
176 }
177 ccb->next = adapter->free_ccbs;
178 ccb->next_all = adapter->all_ccbs;
179 adapter->free_ccbs = ccb;
180 adapter->all_ccbs = ccb;
181 adapter->alloc_ccbs++;
182 ccb++;
183 offset += sizeof(struct blogic_ccb);
184 }
185}
186
187
188/*
189 blogic_create_initccbs allocates the initial CCBs for Host Adapter.
190*/
191
192static bool __init blogic_create_initccbs(struct blogic_adapter *adapter)
193{
194 int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb);
195 void *blk_pointer;
196 dma_addr_t blkp;
197
198 while (adapter->alloc_ccbs < adapter->initccbs) {
199 blk_pointer = dma_alloc_coherent(&adapter->pci_device->dev,
200 blk_size, &blkp, GFP_KERNEL);
201 if (blk_pointer == NULL) {
202 blogic_err("UNABLE TO ALLOCATE CCB GROUP - DETACHING\n",
203 adapter);
204 return false;
205 }
206 blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp);
207 }
208 return true;
209}
210
211
212/*
213 blogic_destroy_ccbs deallocates the CCBs for Host Adapter.
214*/
215
216static void blogic_destroy_ccbs(struct blogic_adapter *adapter)
217{
218 struct blogic_ccb *next_ccb = adapter->all_ccbs, *ccb, *lastccb = NULL;
219 adapter->all_ccbs = NULL;
220 adapter->free_ccbs = NULL;
221 while ((ccb = next_ccb) != NULL) {
222 next_ccb = ccb->next_all;
223 if (ccb->allocgrp_head) {
224 if (lastccb)
225 dma_free_coherent(&adapter->pci_device->dev,
226 lastccb->allocgrp_size, lastccb,
227 lastccb->allocgrp_head);
228 lastccb = ccb;
229 }
230 }
231 if (lastccb)
232 dma_free_coherent(&adapter->pci_device->dev,
233 lastccb->allocgrp_size, lastccb,
234 lastccb->allocgrp_head);
235}
236
237
238/*
239 blogic_create_addlccbs allocates Additional CCBs for Host Adapter. If
240 allocation fails and there are no remaining CCBs available, the Driver Queue
241 Depth is decreased to a known safe value to avoid potential deadlocks when
242 multiple host adapters share the same IRQ Channel.
243*/
244
245static void blogic_create_addlccbs(struct blogic_adapter *adapter,
246 int addl_ccbs, bool print_success)
247{
248 int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb);
249 int prev_alloc = adapter->alloc_ccbs;
250 void *blk_pointer;
251 dma_addr_t blkp;
252 if (addl_ccbs <= 0)
253 return;
254 while (adapter->alloc_ccbs - prev_alloc < addl_ccbs) {
255 blk_pointer = dma_alloc_coherent(&adapter->pci_device->dev,
256 blk_size, &blkp, GFP_KERNEL);
257 if (blk_pointer == NULL)
258 break;
259 blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp);
260 }
261 if (adapter->alloc_ccbs > prev_alloc) {
262 if (print_success)
263 blogic_notice("Allocated %d additional CCBs (total now %d)\n", adapter, adapter->alloc_ccbs - prev_alloc, adapter->alloc_ccbs);
264 return;
265 }
266 blogic_notice("Failed to allocate additional CCBs\n", adapter);
267 if (adapter->drvr_qdepth > adapter->alloc_ccbs - adapter->tgt_count) {
268 adapter->drvr_qdepth = adapter->alloc_ccbs - adapter->tgt_count;
269 adapter->scsi_host->can_queue = adapter->drvr_qdepth;
270 }
271}
272
273/*
274 blogic_alloc_ccb allocates a CCB from Host Adapter's free list,
275 allocating more memory from the Kernel if necessary. The Host Adapter's
276 Lock should already have been acquired by the caller.
277*/
278
279static struct blogic_ccb *blogic_alloc_ccb(struct blogic_adapter *adapter)
280{
281 static unsigned long serial;
282 struct blogic_ccb *ccb;
283 ccb = adapter->free_ccbs;
284 if (ccb != NULL) {
285 ccb->serial = ++serial;
286 adapter->free_ccbs = ccb->next;
287 ccb->next = NULL;
288 if (adapter->free_ccbs == NULL)
289 blogic_create_addlccbs(adapter, adapter->inc_ccbs,
290 true);
291 return ccb;
292 }
293 blogic_create_addlccbs(adapter, adapter->inc_ccbs, true);
294 ccb = adapter->free_ccbs;
295 if (ccb == NULL)
296 return NULL;
297 ccb->serial = ++serial;
298 adapter->free_ccbs = ccb->next;
299 ccb->next = NULL;
300 return ccb;
301}
302
303
304/*
305 blogic_dealloc_ccb deallocates a CCB, returning it to the Host Adapter's
306 free list. The Host Adapter's Lock should already have been acquired by the
307 caller.
308*/
309
310static void blogic_dealloc_ccb(struct blogic_ccb *ccb, int dma_unmap)
311{
312 struct blogic_adapter *adapter = ccb->adapter;
313
314 if (ccb->command != NULL)
315 scsi_dma_unmap(ccb->command);
316 if (dma_unmap)
317 dma_unmap_single(&adapter->pci_device->dev, ccb->sensedata,
318 ccb->sense_datalen, DMA_FROM_DEVICE);
319
320 ccb->command = NULL;
321 ccb->status = BLOGIC_CCB_FREE;
322 ccb->next = adapter->free_ccbs;
323 adapter->free_ccbs = ccb;
324}
325
326
327/*
328 blogic_cmd sends the command opcode to adapter, optionally
329 providing paramlen bytes of param and receiving at most
330 replylen bytes of reply; any excess reply data is received but
331 discarded.
332
333 On success, this function returns the number of reply bytes read from
334 the Host Adapter (including any discarded data); on failure, it returns
335 -1 if the command was invalid, or -2 if a timeout occurred.
336
337 blogic_cmd is called exclusively during host adapter detection and
338 initialization, so performance and latency are not critical, and exclusive
339 access to the Host Adapter hardware is assumed. Once the host adapter and
340 driver are initialized, the only Host Adapter command that is issued is the
341 single byte Execute Mailbox Command operation code, which does not require
342 waiting for the Host Adapter Ready bit to be set in the Status Register.
343*/
344
345static int blogic_cmd(struct blogic_adapter *adapter, enum blogic_opcode opcode,
346 void *param, int paramlen, void *reply, int replylen)
347{
348 unsigned char *param_p = (unsigned char *) param;
349 unsigned char *reply_p = (unsigned char *) reply;
350 union blogic_stat_reg statusreg;
351 union blogic_int_reg intreg;
352 unsigned long processor_flag = 0;
353 int reply_b = 0, result;
354 long timeout;
355 /*
356 Clear out the Reply Data if provided.
357 */
358 if (replylen > 0)
359 memset(reply, 0, replylen);
360 /*
361 If the IRQ Channel has not yet been acquired, then interrupts
362 must be disabled while issuing host adapter commands since a
363 Command Complete interrupt could occur if the IRQ Channel was
364 previously enabled by another BusLogic Host Adapter or another
365 driver sharing the same IRQ Channel.
366 */
367 if (!adapter->irq_acquired)
368 local_irq_save(processor_flag);
369 /*
370 Wait for the Host Adapter Ready bit to be set and the
371 Command/Parameter Register Busy bit to be reset in the Status
372 Register.
373 */
374 timeout = 10000;
375 while (--timeout >= 0) {
376 statusreg.all = blogic_rdstatus(adapter);
377 if (statusreg.sr.adapter_ready && !statusreg.sr.cmd_param_busy)
378 break;
379 udelay(100);
380 }
381 if (timeout < 0) {
382 blogic_cmd_failure_reason =
383 "Timeout waiting for Host Adapter Ready";
384 result = -2;
385 goto done;
386 }
387 /*
388 Write the opcode to the Command/Parameter Register.
389 */
390 adapter->adapter_cmd_complete = false;
391 blogic_setcmdparam(adapter, opcode);
392 /*
393 Write any additional Parameter Bytes.
394 */
395 timeout = 10000;
396 while (paramlen > 0 && --timeout >= 0) {
397 /*
398 Wait 100 microseconds to give the Host Adapter enough
399 time to determine whether the last value written to the
400 Command/Parameter Register was valid or not. If the
401 Command Complete bit is set in the Interrupt Register,
402 then the Command Invalid bit in the Status Register will
403 be reset if the Operation Code or Parameter was valid
404 and the command has completed, or set if the Operation
405 Code or Parameter was invalid. If the Data In Register
406 Ready bit is set in the Status Register, then the
407 Operation Code was valid, and data is waiting to be read
408 back from the Host Adapter. Otherwise, wait for the
409 Command/Parameter Register Busy bit in the Status
410 Register to be reset.
411 */
412 udelay(100);
413 intreg.all = blogic_rdint(adapter);
414 statusreg.all = blogic_rdstatus(adapter);
415 if (intreg.ir.cmd_complete)
416 break;
417 if (adapter->adapter_cmd_complete)
418 break;
419 if (statusreg.sr.datain_ready)
420 break;
421 if (statusreg.sr.cmd_param_busy)
422 continue;
423 blogic_setcmdparam(adapter, *param_p++);
424 paramlen--;
425 }
426 if (timeout < 0) {
427 blogic_cmd_failure_reason =
428 "Timeout waiting for Parameter Acceptance";
429 result = -2;
430 goto done;
431 }
432 /*
433 The Modify I/O Address command does not cause a Command Complete
434 Interrupt.
435 */
436 if (opcode == BLOGIC_MOD_IOADDR) {
437 statusreg.all = blogic_rdstatus(adapter);
438 if (statusreg.sr.cmd_invalid) {
439 blogic_cmd_failure_reason =
440 "Modify I/O Address Invalid";
441 result = -1;
442 goto done;
443 }
444 if (blogic_global_options.trace_config)
445 blogic_notice("blogic_cmd(%02X) Status = %02X: (Modify I/O Address)\n", adapter, opcode, statusreg.all);
446 result = 0;
447 goto done;
448 }
449 /*
450 Select an appropriate timeout value for awaiting command completion.
451 */
452 switch (opcode) {
453 case BLOGIC_INQ_DEV0TO7:
454 case BLOGIC_INQ_DEV8TO15:
455 case BLOGIC_INQ_DEV:
456 /* Approximately 60 seconds. */
457 timeout = 60 * 10000;
458 break;
459 default:
460 /* Approximately 1 second. */
461 timeout = 10000;
462 break;
463 }
464 /*
465 Receive any Reply Bytes, waiting for either the Command
466 Complete bit to be set in the Interrupt Register, or for the
467 Interrupt Handler to set the Host Adapter Command Completed
468 bit in the Host Adapter structure.
469 */
470 while (--timeout >= 0) {
471 intreg.all = blogic_rdint(adapter);
472 statusreg.all = blogic_rdstatus(adapter);
473 if (intreg.ir.cmd_complete)
474 break;
475 if (adapter->adapter_cmd_complete)
476 break;
477 if (statusreg.sr.datain_ready) {
478 if (++reply_b <= replylen)
479 *reply_p++ = blogic_rddatain(adapter);
480 else
481 blogic_rddatain(adapter);
482 }
483 if (opcode == BLOGIC_FETCH_LOCALRAM &&
484 statusreg.sr.adapter_ready)
485 break;
486 udelay(100);
487 }
488 if (timeout < 0) {
489 blogic_cmd_failure_reason =
490 "Timeout waiting for Command Complete";
491 result = -2;
492 goto done;
493 }
494 /*
495 Clear any pending Command Complete Interrupt.
496 */
497 blogic_intreset(adapter);
498 /*
499 Provide tracing information if requested.
500 */
501 if (blogic_global_options.trace_config) {
502 int i;
503 blogic_notice("blogic_cmd(%02X) Status = %02X: %2d ==> %2d:",
504 adapter, opcode, statusreg.all, replylen,
505 reply_b);
506 if (replylen > reply_b)
507 replylen = reply_b;
508 for (i = 0; i < replylen; i++)
509 blogic_notice(" %02X", adapter,
510 ((unsigned char *) reply)[i]);
511 blogic_notice("\n", adapter);
512 }
513 /*
514 Process Command Invalid conditions.
515 */
516 if (statusreg.sr.cmd_invalid) {
517 /*
518 Some early BusLogic Host Adapters may not recover
519 properly from a Command Invalid condition, so if this
520 appears to be the case, a Soft Reset is issued to the
521 Host Adapter. Potentially invalid commands are never
522 attempted after Mailbox Initialization is performed,
523 so there should be no Host Adapter state lost by a
524 Soft Reset in response to a Command Invalid condition.
525 */
526 udelay(1000);
527 statusreg.all = blogic_rdstatus(adapter);
528 if (statusreg.sr.cmd_invalid || statusreg.sr.rsvd ||
529 statusreg.sr.datain_ready ||
530 statusreg.sr.cmd_param_busy ||
531 !statusreg.sr.adapter_ready ||
532 !statusreg.sr.init_reqd ||
533 statusreg.sr.diag_active ||
534 statusreg.sr.diag_failed) {
535 blogic_softreset(adapter);
536 udelay(1000);
537 }
538 blogic_cmd_failure_reason = "Command Invalid";
539 result = -1;
540 goto done;
541 }
542 /*
543 Handle Excess Parameters Supplied conditions.
544 */
545 if (paramlen > 0) {
546 blogic_cmd_failure_reason = "Excess Parameters Supplied";
547 result = -1;
548 goto done;
549 }
550 /*
551 Indicate the command completed successfully.
552 */
553 blogic_cmd_failure_reason = NULL;
554 result = reply_b;
555 /*
556 Restore the interrupt status if necessary and return.
557 */
558done:
559 if (!adapter->irq_acquired)
560 local_irq_restore(processor_flag);
561 return result;
562}
563
564
565/*
566 blogic_sort_probeinfo sorts a section of blogic_probeinfo_list in order
567 of increasing PCI Bus and Device Number.
568*/
569
570static void __init blogic_sort_probeinfo(struct blogic_probeinfo
571 *probeinfo_list, int probeinfo_cnt)
572{
573 int last_exchange = probeinfo_cnt - 1, bound, j;
574
575 while (last_exchange > 0) {
576 bound = last_exchange;
577 last_exchange = 0;
578 for (j = 0; j < bound; j++) {
579 struct blogic_probeinfo *probeinfo1 =
580 &probeinfo_list[j];
581 struct blogic_probeinfo *probeinfo2 =
582 &probeinfo_list[j + 1];
583 if (probeinfo1->bus > probeinfo2->bus ||
584 (probeinfo1->bus == probeinfo2->bus &&
585 (probeinfo1->dev > probeinfo2->dev))) {
586 struct blogic_probeinfo tmp_probeinfo;
587
588 memcpy(&tmp_probeinfo, probeinfo1,
589 sizeof(struct blogic_probeinfo));
590 memcpy(probeinfo1, probeinfo2,
591 sizeof(struct blogic_probeinfo));
592 memcpy(probeinfo2, &tmp_probeinfo,
593 sizeof(struct blogic_probeinfo));
594 last_exchange = j;
595 }
596 }
597 }
598}
599
600
601/*
602 blogic_init_mm_probeinfo initializes the list of I/O Address
603 and Bus Probe Information to be checked for potential BusLogic MultiMaster
604 SCSI Host Adapters by interrogating the PCI Configuration Space on PCI
605 machines as well as from the list of standard BusLogic MultiMaster ISA
606 I/O Addresses. It returns the number of PCI MultiMaster Host Adapters found.
607*/
608
609static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter)
610{
611 struct blogic_probeinfo *pr_probeinfo =
612 &blogic_probeinfo_list[blogic_probeinfo_count];
613 int nonpr_mmindex = blogic_probeinfo_count + 1;
614 int nonpr_mmcount = 0, mmcount = 0;
615 bool force_scan_order = false;
616 bool force_scan_order_checked = false;
617 struct pci_dev *pci_device = NULL;
618 int i;
619 if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS)
620 return 0;
621 blogic_probeinfo_count++;
622 /*
623 Iterate over the MultiMaster PCI Host Adapters. For each
624 enumerated host adapter, determine whether its ISA Compatible
625 I/O Port is enabled and if so, whether it is assigned the
626 Primary I/O Address. A host adapter that is assigned the
627 Primary I/O Address will always be the preferred boot device.
628 The MultiMaster BIOS will first recognize a host adapter at
629 the Primary I/O Address, then any other PCI host adapters,
630 and finally any host adapters located at the remaining
631 standard ISA I/O Addresses. When a PCI host adapter is found
632 with its ISA Compatible I/O Port enabled, a command is issued
633 to disable the ISA Compatible I/O Port, and it is noted that the
634 particular standard ISA I/O Address need not be probed.
635 */
636 pr_probeinfo->io_addr = 0;
637 while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
638 PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
639 pci_device)) != NULL) {
640 struct blogic_adapter *host_adapter = adapter;
641 struct blogic_adapter_info adapter_info;
642 enum blogic_isa_ioport mod_ioaddr_req;
643 unsigned char bus;
644 unsigned char device;
645 unsigned int irq_ch;
646 unsigned long base_addr0;
647 unsigned long base_addr1;
648 unsigned long io_addr;
649 unsigned long pci_addr;
650
651 if (pci_enable_device(pci_device))
652 continue;
653
654 if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
655 continue;
656
657 bus = pci_device->bus->number;
658 device = pci_device->devfn >> 3;
659 irq_ch = pci_device->irq;
660 io_addr = base_addr0 = pci_resource_start(pci_device, 0);
661 pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
662
663 if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
664 blogic_err("BusLogic: Base Address0 0x%lX not I/O for MultiMaster Host Adapter\n", NULL, base_addr0);
665 blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
666 continue;
667 }
668 if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
669 blogic_err("BusLogic: Base Address1 0x%lX not Memory for MultiMaster Host Adapter\n", NULL, base_addr1);
670 blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr);
671 continue;
672 }
673 if (irq_ch == 0) {
674 blogic_err("BusLogic: IRQ Channel %d invalid for MultiMaster Host Adapter\n", NULL, irq_ch);
675 blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
676 continue;
677 }
678 if (blogic_global_options.trace_probe) {
679 blogic_notice("BusLogic: PCI MultiMaster Host Adapter detected at\n", NULL);
680 blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX\n", NULL, bus, device, io_addr, pci_addr);
681 }
682 /*
683 Issue the Inquire PCI Host Adapter Information command to determine
684 the ISA Compatible I/O Port. If the ISA Compatible I/O Port is
685 known and enabled, note that the particular Standard ISA I/O
686 Address should not be probed.
687 */
688 host_adapter->io_addr = io_addr;
689 blogic_intreset(host_adapter);
690 if (blogic_cmd(host_adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
691 &adapter_info, sizeof(adapter_info)) !=
692 sizeof(adapter_info))
693 adapter_info.isa_port = BLOGIC_IO_DISABLE;
694 /*
695 Issue the Modify I/O Address command to disable the
696 ISA Compatible I/O Port. On PCI Host Adapters, the
697 Modify I/O Address command allows modification of the
698 ISA compatible I/O Address that the Host Adapter
699 responds to; it does not affect the PCI compliant
700 I/O Address assigned at system initialization.
701 */
702 mod_ioaddr_req = BLOGIC_IO_DISABLE;
703 blogic_cmd(host_adapter, BLOGIC_MOD_IOADDR, &mod_ioaddr_req,
704 sizeof(mod_ioaddr_req), NULL, 0);
705 /*
706 For the first MultiMaster Host Adapter enumerated,
707 issue the Fetch Host Adapter Local RAM command to read
708 byte 45 of the AutoSCSI area, for the setting of the
709 "Use Bus And Device # For PCI Scanning Seq." option.
710 Issue the Inquire Board ID command since this option is
711 only valid for the BT-948/958/958D.
712 */
713 if (!force_scan_order_checked) {
714 struct blogic_fetch_localram fetch_localram;
715 struct blogic_autoscsi_byte45 autoscsi_byte45;
716 struct blogic_board_id id;
717
718 fetch_localram.offset = BLOGIC_AUTOSCSI_BASE + 45;
719 fetch_localram.count = sizeof(autoscsi_byte45);
720 blogic_cmd(host_adapter, BLOGIC_FETCH_LOCALRAM,
721 &fetch_localram, sizeof(fetch_localram),
722 &autoscsi_byte45,
723 sizeof(autoscsi_byte45));
724 blogic_cmd(host_adapter, BLOGIC_GET_BOARD_ID, NULL, 0,
725 &id, sizeof(id));
726 if (id.fw_ver_digit1 == '5')
727 force_scan_order =
728 autoscsi_byte45.force_scan_order;
729 force_scan_order_checked = true;
730 }
731 /*
732 Determine whether this MultiMaster Host Adapter has its
733 ISA Compatible I/O Port enabled and is assigned the
734 Primary I/O Address. If it does, then it is the Primary
735 MultiMaster Host Adapter and must be recognized first.
736 If it does not, then it is added to the list for probing
737 after any Primary MultiMaster Host Adapter is probed.
738 */
739 if (adapter_info.isa_port == BLOGIC_IO_330) {
740 pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER;
741 pr_probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
742 pr_probeinfo->io_addr = io_addr;
743 pr_probeinfo->pci_addr = pci_addr;
744 pr_probeinfo->bus = bus;
745 pr_probeinfo->dev = device;
746 pr_probeinfo->irq_ch = irq_ch;
747 pr_probeinfo->pci_device = pci_dev_get(pci_device);
748 mmcount++;
749 } else if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
750 struct blogic_probeinfo *probeinfo =
751 &blogic_probeinfo_list[blogic_probeinfo_count++];
752 probeinfo->adapter_type = BLOGIC_MULTIMASTER;
753 probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
754 probeinfo->io_addr = io_addr;
755 probeinfo->pci_addr = pci_addr;
756 probeinfo->bus = bus;
757 probeinfo->dev = device;
758 probeinfo->irq_ch = irq_ch;
759 probeinfo->pci_device = pci_dev_get(pci_device);
760 nonpr_mmcount++;
761 mmcount++;
762 } else
763 blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL);
764 }
765 /*
766 If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq."
767 option is ON for the first enumerated MultiMaster Host Adapter,
768 and if that host adapter is a BT-948/958/958D, then the
769 MultiMaster BIOS will recognize MultiMaster Host Adapters in
770 the order of increasing PCI Bus and Device Number. In that case,
771 sort the probe information into the same order the BIOS uses.
772 If this option is OFF, then the MultiMaster BIOS will recognize
773 MultiMaster Host Adapters in the order they are enumerated by
774 the PCI BIOS, and hence no sorting is necessary.
775 */
776 if (force_scan_order)
777 blogic_sort_probeinfo(&blogic_probeinfo_list[nonpr_mmindex],
778 nonpr_mmcount);
779 /*
780 Iterate over the older non-compliant MultiMaster PCI Host Adapters,
781 noting the PCI bus location and assigned IRQ Channel.
782 */
783 pci_device = NULL;
784 while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
785 PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
786 pci_device)) != NULL) {
787 unsigned char bus;
788 unsigned char device;
789 unsigned int irq_ch;
790 unsigned long io_addr;
791
792 if (pci_enable_device(pci_device))
793 continue;
794
795 if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
796 continue;
797
798 bus = pci_device->bus->number;
799 device = pci_device->devfn >> 3;
800 irq_ch = pci_device->irq;
801 io_addr = pci_resource_start(pci_device, 0);
802
803 if (io_addr == 0 || irq_ch == 0)
804 continue;
805 for (i = 0; i < blogic_probeinfo_count; i++) {
806 struct blogic_probeinfo *probeinfo =
807 &blogic_probeinfo_list[i];
808 if (probeinfo->io_addr == io_addr &&
809 probeinfo->adapter_type == BLOGIC_MULTIMASTER) {
810 probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
811 probeinfo->pci_addr = 0;
812 probeinfo->bus = bus;
813 probeinfo->dev = device;
814 probeinfo->irq_ch = irq_ch;
815 probeinfo->pci_device = pci_dev_get(pci_device);
816 break;
817 }
818 }
819 }
820 return mmcount;
821}
822
823
824/*
825 blogic_init_fp_probeinfo initializes the list of I/O Address
826 and Bus Probe Information to be checked for potential BusLogic FlashPoint
827 Host Adapters by interrogating the PCI Configuration Space. It returns the
828 number of FlashPoint Host Adapters found.
829*/
830
831static int __init blogic_init_fp_probeinfo(struct blogic_adapter *adapter)
832{
833 int fpindex = blogic_probeinfo_count, fpcount = 0;
834 struct pci_dev *pci_device = NULL;
835 /*
836 Interrogate PCI Configuration Space for any FlashPoint Host Adapters.
837 */
838 while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
839 PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
840 pci_device)) != NULL) {
841 unsigned char bus;
842 unsigned char device;
843 unsigned int irq_ch;
844 unsigned long base_addr0;
845 unsigned long base_addr1;
846 unsigned long io_addr;
847 unsigned long pci_addr;
848
849 if (pci_enable_device(pci_device))
850 continue;
851
852 if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
853 continue;
854
855 bus = pci_device->bus->number;
856 device = pci_device->devfn >> 3;
857 irq_ch = pci_device->irq;
858 io_addr = base_addr0 = pci_resource_start(pci_device, 0);
859 pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
860#ifdef CONFIG_SCSI_FLASHPOINT
861 if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
862 blogic_err("BusLogic: Base Address0 0x%lX not I/O for FlashPoint Host Adapter\n", NULL, base_addr0);
863 blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
864 continue;
865 }
866 if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
867 blogic_err("BusLogic: Base Address1 0x%lX not Memory for FlashPoint Host Adapter\n", NULL, base_addr1);
868 blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr);
869 continue;
870 }
871 if (irq_ch == 0) {
872 blogic_err("BusLogic: IRQ Channel %d invalid for FlashPoint Host Adapter\n", NULL, irq_ch);
873 blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
874 continue;
875 }
876 if (blogic_global_options.trace_probe) {
877 blogic_notice("BusLogic: FlashPoint Host Adapter detected at\n", NULL);
878 blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX\n", NULL, bus, device, io_addr, pci_addr);
879 }
880 if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
881 struct blogic_probeinfo *probeinfo =
882 &blogic_probeinfo_list[blogic_probeinfo_count++];
883 probeinfo->adapter_type = BLOGIC_FLASHPOINT;
884 probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
885 probeinfo->io_addr = io_addr;
886 probeinfo->pci_addr = pci_addr;
887 probeinfo->bus = bus;
888 probeinfo->dev = device;
889 probeinfo->irq_ch = irq_ch;
890 probeinfo->pci_device = pci_dev_get(pci_device);
891 fpcount++;
892 } else
893 blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL);
894#else
895 blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", NULL, bus, device);
896 blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, irq %d, but FlashPoint\n", NULL, io_addr, pci_addr, irq_ch);
897 blogic_err("BusLogic: support was omitted in this kernel configuration.\n", NULL);
898#endif
899 }
900 /*
901 The FlashPoint BIOS will scan for FlashPoint Host Adapters in the order of
902 increasing PCI Bus and Device Number, so sort the probe information into
903 the same order the BIOS uses.
904 */
905 blogic_sort_probeinfo(&blogic_probeinfo_list[fpindex], fpcount);
906 return fpcount;
907}
908
909
910/*
911 blogic_init_probeinfo_list initializes the list of I/O Address and Bus
912 Probe Information to be checked for potential BusLogic SCSI Host Adapters by
913 interrogating the PCI Configuration Space on PCI machines as well as from the
914 list of standard BusLogic MultiMaster ISA I/O Addresses. By default, if both
915 FlashPoint and PCI MultiMaster Host Adapters are present, this driver will
916 probe for FlashPoint Host Adapters first unless the BIOS primary disk is
917 controlled by the first PCI MultiMaster Host Adapter, in which case
918 MultiMaster Host Adapters will be probed first. The BusLogic Driver Options
919 specifications "MultiMasterFirst" and "FlashPointFirst" can be used to force
920 a particular probe order.
921*/
922
923static void __init blogic_init_probeinfo_list(struct blogic_adapter *adapter)
924{
925 /*
926 If a PCI BIOS is present, interrogate it for MultiMaster and
927 FlashPoint Host Adapters; otherwise, default to the standard
928 ISA MultiMaster probe.
929 */
930 if (!blogic_probe_options.noprobe_pci) {
931 if (blogic_probe_options.multimaster_first) {
932 blogic_init_mm_probeinfo(adapter);
933 blogic_init_fp_probeinfo(adapter);
934 } else if (blogic_probe_options.flashpoint_first) {
935 blogic_init_fp_probeinfo(adapter);
936 blogic_init_mm_probeinfo(adapter);
937 } else {
938 int fpcount = blogic_init_fp_probeinfo(adapter);
939 int mmcount = blogic_init_mm_probeinfo(adapter);
940 if (fpcount > 0 && mmcount > 0) {
941 struct blogic_probeinfo *probeinfo =
942 &blogic_probeinfo_list[fpcount];
943 struct blogic_adapter *myadapter = adapter;
944 struct blogic_fetch_localram fetch_localram;
945 struct blogic_bios_drvmap d0_mapbyte;
946
947 while (probeinfo->adapter_bus_type !=
948 BLOGIC_PCI_BUS)
949 probeinfo++;
950 myadapter->io_addr = probeinfo->io_addr;
951 fetch_localram.offset =
952 BLOGIC_BIOS_BASE + BLOGIC_BIOS_DRVMAP;
953 fetch_localram.count = sizeof(d0_mapbyte);
954 blogic_cmd(myadapter, BLOGIC_FETCH_LOCALRAM,
955 &fetch_localram,
956 sizeof(fetch_localram),
957 &d0_mapbyte,
958 sizeof(d0_mapbyte));
959 /*
960 If the Map Byte for BIOS Drive 0 indicates
961 that BIOS Drive 0 is controlled by this
962 PCI MultiMaster Host Adapter, then reverse
963 the probe order so that MultiMaster Host
964 Adapters are probed before FlashPoint Host
965 Adapters.
966 */
967 if (d0_mapbyte.diskgeom != BLOGIC_BIOS_NODISK) {
968 struct blogic_probeinfo saved_probeinfo[BLOGIC_MAX_ADAPTERS];
969 int mmcount = blogic_probeinfo_count - fpcount;
970
971 memcpy(saved_probeinfo,
972 blogic_probeinfo_list,
973 blogic_probeinfo_count * sizeof(struct blogic_probeinfo));
974 memcpy(&blogic_probeinfo_list[0],
975 &saved_probeinfo[fpcount],
976 mmcount * sizeof(struct blogic_probeinfo));
977 memcpy(&blogic_probeinfo_list[mmcount],
978 &saved_probeinfo[0],
979 fpcount * sizeof(struct blogic_probeinfo));
980 }
981 }
982 }
983 }
984}
985
986
987/*
988 blogic_failure prints a standardized error message, and then returns false.
989*/
990
991static bool blogic_failure(struct blogic_adapter *adapter, char *msg)
992{
993 blogic_announce_drvr(adapter);
994 if (adapter->adapter_bus_type == BLOGIC_PCI_BUS) {
995 blogic_err("While configuring BusLogic PCI Host Adapter at\n",
996 adapter);
997 blogic_err("Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX:\n", adapter, adapter->bus, adapter->dev, adapter->io_addr, adapter->pci_addr);
998 } else
999 blogic_err("While configuring BusLogic Host Adapter at I/O Address 0x%lX:\n", adapter, adapter->io_addr);
1000 blogic_err("%s FAILED - DETACHING\n", adapter, msg);
1001 if (blogic_cmd_failure_reason != NULL)
1002 blogic_err("ADDITIONAL FAILURE INFO - %s\n", adapter,
1003 blogic_cmd_failure_reason);
1004 return false;
1005}
1006
1007
1008/*
1009 blogic_probe probes for a BusLogic Host Adapter.
1010*/
1011
1012static bool __init blogic_probe(struct blogic_adapter *adapter)
1013{
1014 union blogic_stat_reg statusreg;
1015 union blogic_int_reg intreg;
1016 union blogic_geo_reg georeg;
1017 /*
1018 FlashPoint Host Adapters are Probed by the FlashPoint SCCB Manager.
1019 */
1020 if (blogic_flashpoint_type(adapter)) {
1021 struct fpoint_info *fpinfo = &adapter->fpinfo;
1022 fpinfo->base_addr = (u32) adapter->io_addr;
1023 fpinfo->irq_ch = adapter->irq_ch;
1024 fpinfo->present = false;
1025 if (!(FlashPoint_ProbeHostAdapter(fpinfo) == 0 &&
1026 fpinfo->present)) {
1027 blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", adapter, adapter->bus, adapter->dev);
1028 blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, but FlashPoint\n", adapter, adapter->io_addr, adapter->pci_addr);
1029 blogic_err("BusLogic: Probe Function failed to validate it.\n", adapter);
1030 return false;
1031 }
1032 if (blogic_global_options.trace_probe)
1033 blogic_notice("BusLogic_Probe(0x%lX): FlashPoint Found\n", adapter, adapter->io_addr);
1034 /*
1035 Indicate the Host Adapter Probe completed successfully.
1036 */
1037 return true;
1038 }
1039 /*
1040 Read the Status, Interrupt, and Geometry Registers to test if there are I/O
1041 ports that respond, and to check the values to determine if they are from a
1042 BusLogic Host Adapter. A nonexistent I/O port will return 0xFF, in which
1043 case there is definitely no BusLogic Host Adapter at this base I/O Address.
1044 The test here is a subset of that used by the BusLogic Host Adapter BIOS.
1045 */
1046 statusreg.all = blogic_rdstatus(adapter);
1047 intreg.all = blogic_rdint(adapter);
1048 georeg.all = blogic_rdgeom(adapter);
1049 if (blogic_global_options.trace_probe)
1050 blogic_notice("BusLogic_Probe(0x%lX): Status 0x%02X, Interrupt 0x%02X, Geometry 0x%02X\n", adapter, adapter->io_addr, statusreg.all, intreg.all, georeg.all);
1051 if (statusreg.all == 0 || statusreg.sr.diag_active ||
1052 statusreg.sr.cmd_param_busy || statusreg.sr.rsvd ||
1053 statusreg.sr.cmd_invalid || intreg.ir.rsvd != 0)
1054 return false;
1055 /*
1056 Check the undocumented Geometry Register to test if there is
1057 an I/O port that responded. Adaptec Host Adapters do not
1058 implement the Geometry Register, so this test helps serve to
1059 avoid incorrectly recognizing an Adaptec 1542A or 1542B as a
1060 BusLogic. Unfortunately, the Adaptec 1542C series does respond
1061 to the Geometry Register I/O port, but it will be rejected
1062 later when the Inquire Extended Setup Information command is
1063 issued in blogic_checkadapter. The AMI FastDisk Host Adapter
1064 is a BusLogic clone that implements the same interface as
1065 earlier BusLogic Host Adapters, including the undocumented
1066 commands, and is therefore supported by this driver. However,
1067 the AMI FastDisk always returns 0x00 upon reading the Geometry
1068 Register, so the extended translation option should always be
1069 left disabled on the AMI FastDisk.
1070 */
1071 if (georeg.all == 0xFF)
1072 return false;
1073 /*
1074 Indicate the Host Adapter Probe completed successfully.
1075 */
1076 return true;
1077}
1078
1079
1080/*
1081 blogic_hwreset issues a Hardware Reset to the Host Adapter
1082 and waits for Host Adapter Diagnostics to complete. If hard_reset is true, a
1083 Hard Reset is performed which also initiates a SCSI Bus Reset. Otherwise, a
1084 Soft Reset is performed which only resets the Host Adapter without forcing a
1085 SCSI Bus Reset.
1086*/
1087
1088static bool blogic_hwreset(struct blogic_adapter *adapter, bool hard_reset)
1089{
1090 union blogic_stat_reg statusreg;
1091 int timeout;
1092 /*
1093 FlashPoint Host Adapters are Hard Reset by the FlashPoint
1094 SCCB Manager.
1095 */
1096 if (blogic_flashpoint_type(adapter)) {
1097 struct fpoint_info *fpinfo = &adapter->fpinfo;
1098 fpinfo->softreset = !hard_reset;
1099 fpinfo->report_underrun = true;
1100 adapter->cardhandle =
1101 FlashPoint_HardwareResetHostAdapter(fpinfo);
1102 if (adapter->cardhandle == (void *)FPOINT_BADCARD_HANDLE)
1103 return false;
1104 /*
1105 Indicate the Host Adapter Hard Reset completed successfully.
1106 */
1107 return true;
1108 }
1109 /*
1110 Issue a Hard Reset or Soft Reset Command to the Host Adapter.
1111 The Host Adapter should respond by setting Diagnostic Active in
1112 the Status Register.
1113 */
1114 if (hard_reset)
1115 blogic_hardreset(adapter);
1116 else
1117 blogic_softreset(adapter);
1118 /*
1119 Wait until Diagnostic Active is set in the Status Register.
1120 */
1121 timeout = 5 * 10000;
1122 while (--timeout >= 0) {
1123 statusreg.all = blogic_rdstatus(adapter);
1124 if (statusreg.sr.diag_active)
1125 break;
1126 udelay(100);
1127 }
1128 if (blogic_global_options.trace_hw_reset)
1129 blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Active, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
1130 if (timeout < 0)
1131 return false;
1132 /*
1133 Wait 100 microseconds to allow completion of any initial diagnostic
1134 activity which might leave the contents of the Status Register
1135 unpredictable.
1136 */
1137 udelay(100);
1138 /*
1139 Wait until Diagnostic Active is reset in the Status Register.
1140 */
1141 timeout = 10 * 10000;
1142 while (--timeout >= 0) {
1143 statusreg.all = blogic_rdstatus(adapter);
1144 if (!statusreg.sr.diag_active)
1145 break;
1146 udelay(100);
1147 }
1148 if (blogic_global_options.trace_hw_reset)
1149 blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Completed, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
1150 if (timeout < 0)
1151 return false;
1152 /*
1153 Wait until at least one of the Diagnostic Failure, Host Adapter
1154 Ready, or Data In Register Ready bits is set in the Status Register.
1155 */
1156 timeout = 10000;
1157 while (--timeout >= 0) {
1158 statusreg.all = blogic_rdstatus(adapter);
1159 if (statusreg.sr.diag_failed || statusreg.sr.adapter_ready ||
1160 statusreg.sr.datain_ready)
1161 break;
1162 udelay(100);
1163 }
1164 if (blogic_global_options.trace_hw_reset)
1165 blogic_notice("BusLogic_HardwareReset(0x%lX): Host Adapter Ready, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
1166 if (timeout < 0)
1167 return false;
1168 /*
1169 If Diagnostic Failure is set or Host Adapter Ready is reset,
1170 then an error occurred during the Host Adapter diagnostics.
1171 If Data In Register Ready is set, then there is an Error Code
1172 available.
1173 */
1174 if (statusreg.sr.diag_failed || !statusreg.sr.adapter_ready) {
1175 blogic_cmd_failure_reason = NULL;
1176 blogic_failure(adapter, "HARD RESET DIAGNOSTICS");
1177 blogic_err("HOST ADAPTER STATUS REGISTER = %02X\n", adapter,
1178 statusreg.all);
1179 if (statusreg.sr.datain_ready)
1180 blogic_err("HOST ADAPTER ERROR CODE = %d\n", adapter,
1181 blogic_rddatain(adapter));
1182 return false;
1183 }
1184 /*
1185 Indicate the Host Adapter Hard Reset completed successfully.
1186 */
1187 return true;
1188}
1189
1190
1191/*
1192 blogic_checkadapter checks to be sure this really is a BusLogic
1193 Host Adapter.
1194*/
1195
1196static bool __init blogic_checkadapter(struct blogic_adapter *adapter)
1197{
1198 struct blogic_ext_setup ext_setupinfo;
1199 unsigned char req_replylen;
1200 bool result = true;
1201 /*
1202 FlashPoint Host Adapters do not require this protection.
1203 */
1204 if (blogic_flashpoint_type(adapter))
1205 return true;
1206 /*
1207 Issue the Inquire Extended Setup Information command. Only genuine
1208 BusLogic Host Adapters and true clones support this command.
1209 Adaptec 1542C series Host Adapters that respond to the Geometry
1210 Register I/O port will fail this command.
1211 */
1212 req_replylen = sizeof(ext_setupinfo);
1213 if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen,
1214 sizeof(req_replylen), &ext_setupinfo,
1215 sizeof(ext_setupinfo)) != sizeof(ext_setupinfo))
1216 result = false;
1217 /*
1218 Provide tracing information if requested and return.
1219 */
1220 if (blogic_global_options.trace_probe)
1221 blogic_notice("BusLogic_Check(0x%lX): MultiMaster %s\n", adapter,
1222 adapter->io_addr,
1223 (result ? "Found" : "Not Found"));
1224 return result;
1225}
1226
1227
1228/*
1229 blogic_rdconfig reads the Configuration Information
1230 from Host Adapter and initializes the Host Adapter structure.
1231*/
1232
1233static bool __init blogic_rdconfig(struct blogic_adapter *adapter)
1234{
1235 struct blogic_board_id id;
1236 struct blogic_config config;
1237 struct blogic_setup_info setupinfo;
1238 struct blogic_ext_setup ext_setupinfo;
1239 unsigned char model[5];
1240 unsigned char fw_ver_digit3;
1241 unsigned char fw_ver_letter;
1242 struct blogic_adapter_info adapter_info;
1243 struct blogic_fetch_localram fetch_localram;
1244 struct blogic_autoscsi autoscsi;
1245 union blogic_geo_reg georeg;
1246 unsigned char req_replylen;
1247 unsigned char *tgt, ch;
1248 int tgt_id, i;
1249 /*
1250 Configuration Information for FlashPoint Host Adapters is
1251 provided in the fpoint_info structure by the FlashPoint
1252 SCCB Manager's Probe Function. Initialize fields in the
1253 Host Adapter structure from the fpoint_info structure.
1254 */
1255 if (blogic_flashpoint_type(adapter)) {
1256 struct fpoint_info *fpinfo = &adapter->fpinfo;
1257 tgt = adapter->model;
1258 *tgt++ = 'B';
1259 *tgt++ = 'T';
1260 *tgt++ = '-';
1261 for (i = 0; i < sizeof(fpinfo->model); i++)
1262 *tgt++ = fpinfo->model[i];
1263 *tgt++ = '\0';
1264 strcpy(adapter->fw_ver, FLASHPOINT_FW_VER);
1265 adapter->scsi_id = fpinfo->scsi_id;
1266 adapter->ext_trans_enable = fpinfo->ext_trans_enable;
1267 adapter->parity = fpinfo->parity;
1268 adapter->reset_enabled = !fpinfo->softreset;
1269 adapter->level_int = true;
1270 adapter->wide = fpinfo->wide;
1271 adapter->differential = false;
1272 adapter->scam = true;
1273 adapter->ultra = true;
1274 adapter->ext_lun = true;
1275 adapter->terminfo_valid = true;
1276 adapter->low_term = fpinfo->low_term;
1277 adapter->high_term = fpinfo->high_term;
1278 adapter->scam_enabled = fpinfo->scam_enabled;
1279 adapter->scam_lev2 = fpinfo->scam_lev2;
1280 adapter->drvr_sglimit = BLOGIC_SG_LIMIT;
1281 adapter->maxdev = (adapter->wide ? 16 : 8);
1282 adapter->maxlun = 32;
1283 adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE;
1284 adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE;
1285 adapter->drvr_qdepth = 255;
1286 adapter->adapter_qdepth = adapter->drvr_qdepth;
1287 adapter->sync_ok = fpinfo->sync_ok;
1288 adapter->fast_ok = fpinfo->fast_ok;
1289 adapter->ultra_ok = fpinfo->ultra_ok;
1290 adapter->wide_ok = fpinfo->wide_ok;
1291 adapter->discon_ok = fpinfo->discon_ok;
1292 adapter->tagq_ok = 0xFFFF;
1293 goto common;
1294 }
1295 /*
1296 Issue the Inquire Board ID command.
1297 */
1298 if (blogic_cmd(adapter, BLOGIC_GET_BOARD_ID, NULL, 0, &id,
1299 sizeof(id)) != sizeof(id))
1300 return blogic_failure(adapter, "INQUIRE BOARD ID");
1301 /*
1302 Issue the Inquire Configuration command.
1303 */
1304 if (blogic_cmd(adapter, BLOGIC_INQ_CONFIG, NULL, 0, &config,
1305 sizeof(config))
1306 != sizeof(config))
1307 return blogic_failure(adapter, "INQUIRE CONFIGURATION");
1308 /*
1309 Issue the Inquire Setup Information command.
1310 */
1311 req_replylen = sizeof(setupinfo);
1312 if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen,
1313 sizeof(req_replylen), &setupinfo,
1314 sizeof(setupinfo)) != sizeof(setupinfo))
1315 return blogic_failure(adapter, "INQUIRE SETUP INFORMATION");
1316 /*
1317 Issue the Inquire Extended Setup Information command.
1318 */
1319 req_replylen = sizeof(ext_setupinfo);
1320 if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen,
1321 sizeof(req_replylen), &ext_setupinfo,
1322 sizeof(ext_setupinfo)) != sizeof(ext_setupinfo))
1323 return blogic_failure(adapter,
1324 "INQUIRE EXTENDED SETUP INFORMATION");
1325 /*
1326 Issue the Inquire Firmware Version 3rd Digit command.
1327 */
1328 fw_ver_digit3 = '\0';
1329 if (id.fw_ver_digit1 > '0')
1330 if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_D3, NULL, 0,
1331 &fw_ver_digit3,
1332 sizeof(fw_ver_digit3)) != sizeof(fw_ver_digit3))
1333 return blogic_failure(adapter,
1334 "INQUIRE FIRMWARE 3RD DIGIT");
1335 /*
1336 Issue the Inquire Host Adapter Model Number command.
1337 */
1338 if (ext_setupinfo.bus_type == 'A' && id.fw_ver_digit1 == '2')
1339 /* BusLogic BT-542B ISA 2.xx */
1340 strcpy(model, "542B");
1341 else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '2' &&
1342 (id.fw_ver_digit2 <= '1' || (id.fw_ver_digit2 == '2' &&
1343 fw_ver_digit3 == '0')))
1344 /* BusLogic BT-742A EISA 2.1x or 2.20 */
1345 strcpy(model, "742A");
1346 else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '0')
1347 /* AMI FastDisk EISA Series 441 0.x */
1348 strcpy(model, "747A");
1349 else {
1350 req_replylen = sizeof(model);
1351 if (blogic_cmd(adapter, BLOGIC_INQ_MODELNO, &req_replylen,
1352 sizeof(req_replylen), &model,
1353 sizeof(model)) != sizeof(model))
1354 return blogic_failure(adapter,
1355 "INQUIRE HOST ADAPTER MODEL NUMBER");
1356 }
1357 /*
1358 BusLogic MultiMaster Host Adapters can be identified by their
1359 model number and the major version number of their firmware
1360 as follows:
1361
1362 5.xx BusLogic "W" Series Host Adapters:
1363 BT-948/958/958D
1364 4.xx BusLogic "C" Series Host Adapters:
1365 BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF
1366 3.xx BusLogic "S" Series Host Adapters:
1367 BT-747S/747D/757S/757D/445S/545S/542D
1368 BT-542B/742A (revision H)
1369 2.xx BusLogic "A" Series Host Adapters:
1370 BT-542B/742A (revision G and below)
1371 0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter
1372 */
1373 /*
1374 Save the Model Name and Host Adapter Name in the Host Adapter
1375 structure.
1376 */
1377 tgt = adapter->model;
1378 *tgt++ = 'B';
1379 *tgt++ = 'T';
1380 *tgt++ = '-';
1381 for (i = 0; i < sizeof(model); i++) {
1382 ch = model[i];
1383 if (ch == ' ' || ch == '\0')
1384 break;
1385 *tgt++ = ch;
1386 }
1387 *tgt++ = '\0';
1388 /*
1389 Save the Firmware Version in the Host Adapter structure.
1390 */
1391 tgt = adapter->fw_ver;
1392 *tgt++ = id.fw_ver_digit1;
1393 *tgt++ = '.';
1394 *tgt++ = id.fw_ver_digit2;
1395 if (fw_ver_digit3 != ' ' && fw_ver_digit3 != '\0')
1396 *tgt++ = fw_ver_digit3;
1397 *tgt = '\0';
1398 /*
1399 Issue the Inquire Firmware Version Letter command.
1400 */
1401 if (strcmp(adapter->fw_ver, "3.3") >= 0) {
1402 if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_LETTER, NULL, 0,
1403 &fw_ver_letter,
1404 sizeof(fw_ver_letter)) != sizeof(fw_ver_letter))
1405 return blogic_failure(adapter,
1406 "INQUIRE FIRMWARE VERSION LETTER");
1407 if (fw_ver_letter != ' ' && fw_ver_letter != '\0')
1408 *tgt++ = fw_ver_letter;
1409 *tgt = '\0';
1410 }
1411 /*
1412 Save the Host Adapter SCSI ID in the Host Adapter structure.
1413 */
1414 adapter->scsi_id = config.id;
1415 /*
1416 Determine the Bus Type and save it in the Host Adapter structure,
1417 determine and save the IRQ Channel if necessary, and determine
1418 and save the DMA Channel for ISA Host Adapters.
1419 */
1420 adapter->adapter_bus_type =
1421 blogic_adater_bus_types[adapter->model[3] - '4'];
1422 if (adapter->irq_ch == 0) {
1423 if (config.irq_ch9)
1424 adapter->irq_ch = 9;
1425 else if (config.irq_ch10)
1426 adapter->irq_ch = 10;
1427 else if (config.irq_ch11)
1428 adapter->irq_ch = 11;
1429 else if (config.irq_ch12)
1430 adapter->irq_ch = 12;
1431 else if (config.irq_ch14)
1432 adapter->irq_ch = 14;
1433 else if (config.irq_ch15)
1434 adapter->irq_ch = 15;
1435 }
1436 /*
1437 Determine whether Extended Translation is enabled and save it in
1438 the Host Adapter structure.
1439 */
1440 georeg.all = blogic_rdgeom(adapter);
1441 adapter->ext_trans_enable = georeg.gr.ext_trans_enable;
1442 /*
1443 Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide
1444 SCSI flag, Differential SCSI flag, SCAM Supported flag, and
1445 Ultra SCSI flag in the Host Adapter structure.
1446 */
1447 adapter->adapter_sglimit = ext_setupinfo.sg_limit;
1448 adapter->drvr_sglimit = adapter->adapter_sglimit;
1449 if (adapter->adapter_sglimit > BLOGIC_SG_LIMIT)
1450 adapter->drvr_sglimit = BLOGIC_SG_LIMIT;
1451 if (ext_setupinfo.misc.level_int)
1452 adapter->level_int = true;
1453 adapter->wide = ext_setupinfo.wide;
1454 adapter->differential = ext_setupinfo.differential;
1455 adapter->scam = ext_setupinfo.scam;
1456 adapter->ultra = ext_setupinfo.ultra;
1457 /*
1458 Determine whether Extended LUN Format CCBs are supported and save the
1459 information in the Host Adapter structure.
1460 */
1461 if (adapter->fw_ver[0] == '5' || (adapter->fw_ver[0] == '4' &&
1462 adapter->wide))
1463 adapter->ext_lun = true;
1464 /*
1465 Issue the Inquire PCI Host Adapter Information command to read the
1466 Termination Information from "W" series MultiMaster Host Adapters.
1467 */
1468 if (adapter->fw_ver[0] == '5') {
1469 if (blogic_cmd(adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
1470 &adapter_info,
1471 sizeof(adapter_info)) != sizeof(adapter_info))
1472 return blogic_failure(adapter,
1473 "INQUIRE PCI HOST ADAPTER INFORMATION");
1474 /*
1475 Save the Termination Information in the Host Adapter
1476 structure.
1477 */
1478 if (adapter_info.genericinfo_valid) {
1479 adapter->terminfo_valid = true;
1480 adapter->low_term = adapter_info.low_term;
1481 adapter->high_term = adapter_info.high_term;
1482 }
1483 }
1484 /*
1485 Issue the Fetch Host Adapter Local RAM command to read the
1486 AutoSCSI data from "W" and "C" series MultiMaster Host Adapters.
1487 */
1488 if (adapter->fw_ver[0] >= '4') {
1489 fetch_localram.offset = BLOGIC_AUTOSCSI_BASE;
1490 fetch_localram.count = sizeof(autoscsi);
1491 if (blogic_cmd(adapter, BLOGIC_FETCH_LOCALRAM, &fetch_localram,
1492 sizeof(fetch_localram), &autoscsi,
1493 sizeof(autoscsi)) != sizeof(autoscsi))
1494 return blogic_failure(adapter,
1495 "FETCH HOST ADAPTER LOCAL RAM");
1496 /*
1497 Save the Parity Checking Enabled, Bus Reset Enabled,
1498 and Termination Information in the Host Adapter structure.
1499 */
1500 adapter->parity = autoscsi.parity;
1501 adapter->reset_enabled = autoscsi.reset_enabled;
1502 if (adapter->fw_ver[0] == '4') {
1503 adapter->terminfo_valid = true;
1504 adapter->low_term = autoscsi.low_term;
1505 adapter->high_term = autoscsi.high_term;
1506 }
1507 /*
1508 Save the Wide Permitted, Fast Permitted, Synchronous
1509 Permitted, Disconnect Permitted, Ultra Permitted, and
1510 SCAM Information in the Host Adapter structure.
1511 */
1512 adapter->wide_ok = autoscsi.wide_ok;
1513 adapter->fast_ok = autoscsi.fast_ok;
1514 adapter->sync_ok = autoscsi.sync_ok;
1515 adapter->discon_ok = autoscsi.discon_ok;
1516 if (adapter->ultra)
1517 adapter->ultra_ok = autoscsi.ultra_ok;
1518 if (adapter->scam) {
1519 adapter->scam_enabled = autoscsi.scam_enabled;
1520 adapter->scam_lev2 = autoscsi.scam_lev2;
1521 }
1522 }
1523 /*
1524 Initialize fields in the Host Adapter structure for "S" and "A"
1525 series MultiMaster Host Adapters.
1526 */
1527 if (adapter->fw_ver[0] < '4') {
1528 if (setupinfo.sync) {
1529 adapter->sync_ok = 0xFF;
1530 if (adapter->adapter_bus_type == BLOGIC_EISA_BUS) {
1531 if (ext_setupinfo.misc.fast_on_eisa)
1532 adapter->fast_ok = 0xFF;
1533 if (strcmp(adapter->model, "BT-757") == 0)
1534 adapter->wide_ok = 0xFF;
1535 }
1536 }
1537 adapter->discon_ok = 0xFF;
1538 adapter->parity = setupinfo.parity;
1539 adapter->reset_enabled = true;
1540 }
1541 /*
1542 Determine the maximum number of Target IDs and Logical Units
1543 supported by this driver for Wide and Narrow Host Adapters.
1544 */
1545 adapter->maxdev = (adapter->wide ? 16 : 8);
1546 adapter->maxlun = (adapter->ext_lun ? 32 : 8);
1547 /*
1548 Select appropriate values for the Mailbox Count, Driver Queue Depth,
1549 Initial CCBs, and Incremental CCBs variables based on whether
1550 or not Strict Round Robin Mode is supported. If Strict Round
1551 Robin Mode is supported, then there is no performance degradation
1552 in using the maximum possible number of Outgoing and Incoming
1553 Mailboxes and allowing the Tagged and Untagged Queue Depths to
1554 determine the actual utilization. If Strict Round Robin Mode is
1555 not supported, then the Host Adapter must scan all the Outgoing
1556 Mailboxes whenever an Outgoing Mailbox entry is made, which can
1557 cause a substantial performance penalty. The host adapters
1558 actually have room to store the following number of CCBs
1559 internally; that is, they can internally queue and manage this
1560 many active commands on the SCSI bus simultaneously. Performance
1561 measurements demonstrate that the Driver Queue Depth should be
1562 set to the Mailbox Count, rather than the Host Adapter Queue
1563 Depth (internal CCB capacity), as it is more efficient to have the
1564 queued commands waiting in Outgoing Mailboxes if necessary than
1565 to block the process in the higher levels of the SCSI Subsystem.
1566
1567 192 BT-948/958/958D
1568 100 BT-946C/956C/956CD/747C/757C/757CD/445C
1569 50 BT-545C/540CF
1570 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A
1571 */
1572 if (adapter->fw_ver[0] == '5')
1573 adapter->adapter_qdepth = 192;
1574 else if (adapter->fw_ver[0] == '4')
1575 adapter->adapter_qdepth = 100;
1576 else
1577 adapter->adapter_qdepth = 30;
1578 if (strcmp(adapter->fw_ver, "3.31") >= 0) {
1579 adapter->strict_rr = true;
1580 adapter->mbox_count = BLOGIC_MAX_MAILBOX;
1581 } else {
1582 adapter->strict_rr = false;
1583 adapter->mbox_count = 32;
1584 }
1585 adapter->drvr_qdepth = adapter->mbox_count;
1586 adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE;
1587 adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE;
1588 /*
1589 Tagged Queuing support is available and operates properly on
1590 all "W" series MultiMaster Host Adapters, on "C" series
1591 MultiMaster Host Adapters with firmware version 4.22 and above,
1592 and on "S" series MultiMaster Host Adapters with firmware version
1593 3.35 and above.
1594 */
1595 adapter->tagq_ok = 0;
1596 switch (adapter->fw_ver[0]) {
1597 case '5':
1598 adapter->tagq_ok = 0xFFFF;
1599 break;
1600 case '4':
1601 if (strcmp(adapter->fw_ver, "4.22") >= 0)
1602 adapter->tagq_ok = 0xFFFF;
1603 break;
1604 case '3':
1605 if (strcmp(adapter->fw_ver, "3.35") >= 0)
1606 adapter->tagq_ok = 0xFFFF;
1607 break;
1608 }
1609 /*
1610 Determine the Host Adapter BIOS Address if the BIOS is enabled and
1611 save it in the Host Adapter structure. The BIOS is disabled if the
1612 bios_addr is 0.
1613 */
1614 adapter->bios_addr = ext_setupinfo.bios_addr << 12;
1615 /*
1616 BusLogic BT-445S Host Adapters prior to board revision E have a
1617 hardware bug whereby when the BIOS is enabled, transfers to/from
1618 the same address range the BIOS occupies modulo 16MB are handled
1619 incorrectly. Only properly functioning BT-445S Host Adapters
1620 have firmware version 3.37.
1621 */
1622 if (adapter->bios_addr > 0 &&
1623 strcmp(adapter->model, "BT-445S") == 0 &&
1624 strcmp(adapter->fw_ver, "3.37") < 0)
1625 return blogic_failure(adapter, "Too old firmware");
1626 /*
1627 Initialize parameters common to MultiMaster and FlashPoint
1628 Host Adapters.
1629 */
1630common:
1631 /*
1632 Initialize the Host Adapter Full Model Name from the Model Name.
1633 */
1634 strcpy(adapter->full_model, "BusLogic ");
1635 strcat(adapter->full_model, adapter->model);
1636 /*
1637 Select an appropriate value for the Tagged Queue Depth either from a
1638 BusLogic Driver Options specification, or based on whether this Host
1639 Adapter requires that ISA Bounce Buffers be used. The Tagged Queue
1640 Depth is left at 0 for automatic determination in
1641 BusLogic_SelectQueueDepths. Initialize the Untagged Queue Depth.
1642 */
1643 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
1644 unsigned char qdepth = 0;
1645 if (adapter->drvr_opts != NULL &&
1646 adapter->drvr_opts->qdepth[tgt_id] > 0)
1647 qdepth = adapter->drvr_opts->qdepth[tgt_id];
1648 adapter->qdepth[tgt_id] = qdepth;
1649 }
1650 adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH;
1651 if (adapter->drvr_opts != NULL)
1652 adapter->common_qdepth = adapter->drvr_opts->common_qdepth;
1653 if (adapter->common_qdepth > 0 &&
1654 adapter->common_qdepth < adapter->untag_qdepth)
1655 adapter->untag_qdepth = adapter->common_qdepth;
1656 /*
1657 Tagged Queuing is only allowed if Disconnect/Reconnect is permitted.
1658 Therefore, mask the Tagged Queuing Permitted Default bits with the
1659 Disconnect/Reconnect Permitted bits.
1660 */
1661 adapter->tagq_ok &= adapter->discon_ok;
1662 /*
1663 Combine the default Tagged Queuing Permitted bits with any
1664 BusLogic Driver Options Tagged Queuing specification.
1665 */
1666 if (adapter->drvr_opts != NULL)
1667 adapter->tagq_ok = (adapter->drvr_opts->tagq_ok &
1668 adapter->drvr_opts->tagq_ok_mask) |
1669 (adapter->tagq_ok & ~adapter->drvr_opts->tagq_ok_mask);
1670
1671 /*
1672 Select an appropriate value for Bus Settle Time either from a
1673 BusLogic Driver Options specification, or from
1674 BLOGIC_BUS_SETTLE_TIME.
1675 */
1676 if (adapter->drvr_opts != NULL &&
1677 adapter->drvr_opts->bus_settle_time > 0)
1678 adapter->bus_settle_time = adapter->drvr_opts->bus_settle_time;
1679 else
1680 adapter->bus_settle_time = BLOGIC_BUS_SETTLE_TIME;
1681 /*
1682 Indicate reading the Host Adapter Configuration completed
1683 successfully.
1684 */
1685 return true;
1686}
1687
1688
1689/*
1690 blogic_reportconfig reports the configuration of Host Adapter.
1691*/
1692
1693static bool __init blogic_reportconfig(struct blogic_adapter *adapter)
1694{
1695 unsigned short alltgt_mask = (1 << adapter->maxdev) - 1;
1696 unsigned short sync_ok, fast_ok;
1697 unsigned short ultra_ok, wide_ok;
1698 unsigned short discon_ok, tagq_ok;
1699 bool common_syncneg, common_tagq_depth;
1700 char syncstr[BLOGIC_MAXDEV + 1];
1701 char widestr[BLOGIC_MAXDEV + 1];
1702 char discon_str[BLOGIC_MAXDEV + 1];
1703 char tagq_str[BLOGIC_MAXDEV + 1];
1704 char *syncmsg = syncstr;
1705 char *widemsg = widestr;
1706 char *discon_msg = discon_str;
1707 char *tagq_msg = tagq_str;
1708 int tgt_id;
1709
1710 blogic_info("Configuring BusLogic Model %s %s%s%s%s SCSI Host Adapter\n", adapter, adapter->model, blogic_adapter_busnames[adapter->adapter_bus_type], (adapter->wide ? " Wide" : ""), (adapter->differential ? " Differential" : ""), (adapter->ultra ? " Ultra" : ""));
1711 blogic_info(" Firmware Version: %s, I/O Address: 0x%lX, IRQ Channel: %d/%s\n", adapter, adapter->fw_ver, adapter->io_addr, adapter->irq_ch, (adapter->level_int ? "Level" : "Edge"));
1712 if (adapter->adapter_bus_type != BLOGIC_PCI_BUS) {
1713 blogic_info(" DMA Channel: None, ", adapter);
1714 if (adapter->bios_addr > 0)
1715 blogic_info("BIOS Address: 0x%X, ", adapter,
1716 adapter->bios_addr);
1717 else
1718 blogic_info("BIOS Address: None, ", adapter);
1719 } else {
1720 blogic_info(" PCI Bus: %d, Device: %d, Address: ", adapter,
1721 adapter->bus, adapter->dev);
1722 if (adapter->pci_addr > 0)
1723 blogic_info("0x%lX, ", adapter, adapter->pci_addr);
1724 else
1725 blogic_info("Unassigned, ", adapter);
1726 }
1727 blogic_info("Host Adapter SCSI ID: %d\n", adapter, adapter->scsi_id);
1728 blogic_info(" Parity Checking: %s, Extended Translation: %s\n",
1729 adapter, (adapter->parity ? "Enabled" : "Disabled"),
1730 (adapter->ext_trans_enable ? "Enabled" : "Disabled"));
1731 alltgt_mask &= ~(1 << adapter->scsi_id);
1732 sync_ok = adapter->sync_ok & alltgt_mask;
1733 fast_ok = adapter->fast_ok & alltgt_mask;
1734 ultra_ok = adapter->ultra_ok & alltgt_mask;
1735 if ((blogic_multimaster_type(adapter) &&
1736 (adapter->fw_ver[0] >= '4' ||
1737 adapter->adapter_bus_type == BLOGIC_EISA_BUS)) ||
1738 blogic_flashpoint_type(adapter)) {
1739 common_syncneg = false;
1740 if (sync_ok == 0) {
1741 syncmsg = "Disabled";
1742 common_syncneg = true;
1743 } else if (sync_ok == alltgt_mask) {
1744 if (fast_ok == 0) {
1745 syncmsg = "Slow";
1746 common_syncneg = true;
1747 } else if (fast_ok == alltgt_mask) {
1748 if (ultra_ok == 0) {
1749 syncmsg = "Fast";
1750 common_syncneg = true;
1751 } else if (ultra_ok == alltgt_mask) {
1752 syncmsg = "Ultra";
1753 common_syncneg = true;
1754 }
1755 }
1756 }
1757 if (!common_syncneg) {
1758 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1759 syncstr[tgt_id] = ((!(sync_ok & (1 << tgt_id))) ? 'N' : (!(fast_ok & (1 << tgt_id)) ? 'S' : (!(ultra_ok & (1 << tgt_id)) ? 'F' : 'U')));
1760 syncstr[adapter->scsi_id] = '#';
1761 syncstr[adapter->maxdev] = '\0';
1762 }
1763 } else
1764 syncmsg = (sync_ok == 0 ? "Disabled" : "Enabled");
1765 wide_ok = adapter->wide_ok & alltgt_mask;
1766 if (wide_ok == 0)
1767 widemsg = "Disabled";
1768 else if (wide_ok == alltgt_mask)
1769 widemsg = "Enabled";
1770 else {
1771 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1772 widestr[tgt_id] = ((wide_ok & (1 << tgt_id)) ? 'Y' : 'N');
1773 widestr[adapter->scsi_id] = '#';
1774 widestr[adapter->maxdev] = '\0';
1775 }
1776 discon_ok = adapter->discon_ok & alltgt_mask;
1777 if (discon_ok == 0)
1778 discon_msg = "Disabled";
1779 else if (discon_ok == alltgt_mask)
1780 discon_msg = "Enabled";
1781 else {
1782 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1783 discon_str[tgt_id] = ((discon_ok & (1 << tgt_id)) ? 'Y' : 'N');
1784 discon_str[adapter->scsi_id] = '#';
1785 discon_str[adapter->maxdev] = '\0';
1786 }
1787 tagq_ok = adapter->tagq_ok & alltgt_mask;
1788 if (tagq_ok == 0)
1789 tagq_msg = "Disabled";
1790 else if (tagq_ok == alltgt_mask)
1791 tagq_msg = "Enabled";
1792 else {
1793 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
1794 tagq_str[tgt_id] = ((tagq_ok & (1 << tgt_id)) ? 'Y' : 'N');
1795 tagq_str[adapter->scsi_id] = '#';
1796 tagq_str[adapter->maxdev] = '\0';
1797 }
1798 blogic_info(" Synchronous Negotiation: %s, Wide Negotiation: %s\n",
1799 adapter, syncmsg, widemsg);
1800 blogic_info(" Disconnect/Reconnect: %s, Tagged Queuing: %s\n", adapter,
1801 discon_msg, tagq_msg);
1802 if (blogic_multimaster_type(adapter)) {
1803 blogic_info(" Scatter/Gather Limit: %d of %d segments, Mailboxes: %d\n", adapter, adapter->drvr_sglimit, adapter->adapter_sglimit, adapter->mbox_count);
1804 blogic_info(" Driver Queue Depth: %d, Host Adapter Queue Depth: %d\n", adapter, adapter->drvr_qdepth, adapter->adapter_qdepth);
1805 } else
1806 blogic_info(" Driver Queue Depth: %d, Scatter/Gather Limit: %d segments\n", adapter, adapter->drvr_qdepth, adapter->drvr_sglimit);
1807 blogic_info(" Tagged Queue Depth: ", adapter);
1808 common_tagq_depth = true;
1809 for (tgt_id = 1; tgt_id < adapter->maxdev; tgt_id++)
1810 if (adapter->qdepth[tgt_id] != adapter->qdepth[0]) {
1811 common_tagq_depth = false;
1812 break;
1813 }
1814 if (common_tagq_depth) {
1815 if (adapter->qdepth[0] > 0)
1816 blogic_info("%d", adapter, adapter->qdepth[0]);
1817 else
1818 blogic_info("Automatic", adapter);
1819 } else
1820 blogic_info("Individual", adapter);
1821 blogic_info(", Untagged Queue Depth: %d\n", adapter,
1822 adapter->untag_qdepth);
1823 if (adapter->terminfo_valid) {
1824 if (adapter->wide)
1825 blogic_info(" SCSI Bus Termination: %s", adapter,
1826 (adapter->low_term ? (adapter->high_term ? "Both Enabled" : "Low Enabled") : (adapter->high_term ? "High Enabled" : "Both Disabled")));
1827 else
1828 blogic_info(" SCSI Bus Termination: %s", adapter,
1829 (adapter->low_term ? "Enabled" : "Disabled"));
1830 if (adapter->scam)
1831 blogic_info(", SCAM: %s", adapter,
1832 (adapter->scam_enabled ? (adapter->scam_lev2 ? "Enabled, Level 2" : "Enabled, Level 1") : "Disabled"));
1833 blogic_info("\n", adapter);
1834 }
1835 /*
1836 Indicate reporting the Host Adapter configuration completed
1837 successfully.
1838 */
1839 return true;
1840}
1841
1842
1843/*
1844 blogic_getres acquires the system resources necessary to use
1845 Host Adapter.
1846*/
1847
1848static bool __init blogic_getres(struct blogic_adapter *adapter)
1849{
1850 if (adapter->irq_ch == 0) {
1851 blogic_err("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n",
1852 adapter);
1853 return false;
1854 }
1855 /*
1856 Acquire shared access to the IRQ Channel.
1857 */
1858 if (request_irq(adapter->irq_ch, blogic_inthandler, IRQF_SHARED,
1859 adapter->full_model, adapter) < 0) {
1860 blogic_err("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n",
1861 adapter, adapter->irq_ch);
1862 return false;
1863 }
1864 adapter->irq_acquired = true;
1865 /*
1866 Indicate the System Resource Acquisition completed successfully,
1867 */
1868 return true;
1869}
1870
1871
1872/*
1873 blogic_relres releases any system resources previously acquired
1874 by blogic_getres.
1875*/
1876
1877static void blogic_relres(struct blogic_adapter *adapter)
1878{
1879 /*
1880 Release shared access to the IRQ Channel.
1881 */
1882 if (adapter->irq_acquired)
1883 free_irq(adapter->irq_ch, adapter);
1884 /*
1885 Release any allocated memory structs not released elsewhere
1886 */
1887 if (adapter->mbox_space)
1888 dma_free_coherent(&adapter->pci_device->dev, adapter->mbox_sz,
1889 adapter->mbox_space, adapter->mbox_space_handle);
1890 pci_dev_put(adapter->pci_device);
1891 adapter->mbox_space = NULL;
1892 adapter->mbox_space_handle = 0;
1893 adapter->mbox_sz = 0;
1894}
1895
1896
1897/*
1898 blogic_initadapter initializes Host Adapter. This is the only
1899 function called during SCSI Host Adapter detection which modifies the state
1900 of the Host Adapter from its initial power on or hard reset state.
1901*/
1902
1903static bool blogic_initadapter(struct blogic_adapter *adapter)
1904{
1905 struct blogic_extmbox_req extmbox_req;
1906 enum blogic_rr_req rr_req;
1907 enum blogic_setccb_fmt setccb_fmt;
1908 int tgt_id;
1909
1910 /*
1911 Initialize the pointers to the first and last CCBs that are
1912 queued for completion processing.
1913 */
1914 adapter->firstccb = NULL;
1915 adapter->lastccb = NULL;
1916
1917 /*
1918 Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active,
1919 Command Successful Flag, Active Commands, and Commands Since Reset
1920 for each Target Device.
1921 */
1922 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) {
1923 adapter->bdr_pend[tgt_id] = NULL;
1924 adapter->tgt_flags[tgt_id].tagq_active = false;
1925 adapter->tgt_flags[tgt_id].cmd_good = false;
1926 adapter->active_cmds[tgt_id] = 0;
1927 adapter->cmds_since_rst[tgt_id] = 0;
1928 }
1929
1930 /*
1931 FlashPoint Host Adapters do not use Outgoing and Incoming Mailboxes.
1932 */
1933 if (blogic_flashpoint_type(adapter))
1934 goto done;
1935
1936 /*
1937 Initialize the Outgoing and Incoming Mailbox pointers.
1938 */
1939 adapter->mbox_sz = adapter->mbox_count * (sizeof(struct blogic_outbox) + sizeof(struct blogic_inbox));
1940 adapter->mbox_space = dma_alloc_coherent(&adapter->pci_device->dev,
1941 adapter->mbox_sz, &adapter->mbox_space_handle,
1942 GFP_KERNEL);
1943 if (adapter->mbox_space == NULL)
1944 return blogic_failure(adapter, "MAILBOX ALLOCATION");
1945 adapter->first_outbox = (struct blogic_outbox *) adapter->mbox_space;
1946 adapter->last_outbox = adapter->first_outbox + adapter->mbox_count - 1;
1947 adapter->next_outbox = adapter->first_outbox;
1948 adapter->first_inbox = (struct blogic_inbox *) (adapter->last_outbox + 1);
1949 adapter->last_inbox = adapter->first_inbox + adapter->mbox_count - 1;
1950 adapter->next_inbox = adapter->first_inbox;
1951
1952 /*
1953 Initialize the Outgoing and Incoming Mailbox structures.
1954 */
1955 memset(adapter->first_outbox, 0,
1956 adapter->mbox_count * sizeof(struct blogic_outbox));
1957 memset(adapter->first_inbox, 0,
1958 adapter->mbox_count * sizeof(struct blogic_inbox));
1959
1960 /*
1961 Initialize the Host Adapter's Pointer to the Outgoing/Incoming
1962 Mailboxes.
1963 */
1964 extmbox_req.mbox_count = adapter->mbox_count;
1965 extmbox_req.base_mbox_addr = (u32) adapter->mbox_space_handle;
1966 if (blogic_cmd(adapter, BLOGIC_INIT_EXT_MBOX, &extmbox_req,
1967 sizeof(extmbox_req), NULL, 0) < 0)
1968 return blogic_failure(adapter, "MAILBOX INITIALIZATION");
1969 /*
1970 Enable Strict Round Robin Mode if supported by the Host Adapter. In
1971 Strict Round Robin Mode, the Host Adapter only looks at the next
1972 Outgoing Mailbox for each new command, rather than scanning
1973 through all the Outgoing Mailboxes to find any that have new
1974 commands in them. Strict Round Robin Mode is significantly more
1975 efficient.
1976 */
1977 if (adapter->strict_rr) {
1978 rr_req = BLOGIC_STRICT_RR_MODE;
1979 if (blogic_cmd(adapter, BLOGIC_STRICT_RR, &rr_req,
1980 sizeof(rr_req), NULL, 0) < 0)
1981 return blogic_failure(adapter,
1982 "ENABLE STRICT ROUND ROBIN MODE");
1983 }
1984
1985 /*
1986 For Host Adapters that support Extended LUN Format CCBs, issue the
1987 Set CCB Format command to allow 32 Logical Units per Target Device.
1988 */
1989 if (adapter->ext_lun) {
1990 setccb_fmt = BLOGIC_EXT_LUN_CCB;
1991 if (blogic_cmd(adapter, BLOGIC_SETCCB_FMT, &setccb_fmt,
1992 sizeof(setccb_fmt), NULL, 0) < 0)
1993 return blogic_failure(adapter, "SET CCB FORMAT");
1994 }
1995
1996 /*
1997 Announce Successful Initialization.
1998 */
1999done:
2000 if (!adapter->adapter_initd) {
2001 blogic_info("*** %s Initialized Successfully ***\n", adapter,
2002 adapter->full_model);
2003 blogic_info("\n", adapter);
2004 } else
2005 blogic_warn("*** %s Initialized Successfully ***\n", adapter,
2006 adapter->full_model);
2007 adapter->adapter_initd = true;
2008
2009 /*
2010 Indicate the Host Adapter Initialization completed successfully.
2011 */
2012 return true;
2013}
2014
2015
2016/*
2017 blogic_inquiry inquires about the Target Devices accessible
2018 through Host Adapter.
2019*/
2020
2021static bool __init blogic_inquiry(struct blogic_adapter *adapter)
2022{
2023 u16 installed_devs;
2024 u8 installed_devs0to7[8];
2025 struct blogic_setup_info setupinfo;
2026 u8 sync_period[BLOGIC_MAXDEV];
2027 unsigned char req_replylen;
2028 int tgt_id;
2029
2030 /*
2031 Wait a few seconds between the Host Adapter Hard Reset which
2032 initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
2033 SCSI devices get confused if they receive SCSI Commands too soon
2034 after a SCSI Bus Reset.
2035 */
2036 blogic_delay(adapter->bus_settle_time);
2037 /*
2038 FlashPoint Host Adapters do not provide for Target Device Inquiry.
2039 */
2040 if (blogic_flashpoint_type(adapter))
2041 return true;
2042 /*
2043 Inhibit the Target Device Inquiry if requested.
2044 */
2045 if (adapter->drvr_opts != NULL && adapter->drvr_opts->stop_tgt_inquiry)
2046 return true;
2047 /*
2048 Issue the Inquire Target Devices command for host adapters with
2049 firmware version 4.25 or later, or the Inquire Installed Devices
2050 ID 0 to 7 command for older host adapters. This is necessary to
2051 force Synchronous Transfer Negotiation so that the Inquire Setup
2052 Information and Inquire Synchronous Period commands will return
2053 valid data. The Inquire Target Devices command is preferable to
2054 Inquire Installed Devices ID 0 to 7 since it only probes Logical
2055 Unit 0 of each Target Device.
2056 */
2057 if (strcmp(adapter->fw_ver, "4.25") >= 0) {
2058
2059 /*
2060 Issue a Inquire Target Devices command. Inquire Target
2061 Devices only tests Logical Unit 0 of each Target Device
2062 unlike the Inquire Installed Devices commands which test
2063 Logical Units 0 - 7. Two bytes are returned, where byte
2064 0 bit 0 set indicates that Target Device 0 exists, and so on.
2065 */
2066
2067 if (blogic_cmd(adapter, BLOGIC_INQ_DEV, NULL, 0,
2068 &installed_devs, sizeof(installed_devs))
2069 != sizeof(installed_devs))
2070 return blogic_failure(adapter, "INQUIRE TARGET DEVICES");
2071 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2072 adapter->tgt_flags[tgt_id].tgt_exists =
2073 (installed_devs & (1 << tgt_id) ? true : false);
2074 } else {
2075
2076 /*
2077 Issue an Inquire Installed Devices command. For each
2078 Target Device, a byte is returned where bit 0 set
2079 indicates that Logical Unit 0 * exists, bit 1 set
2080 indicates that Logical Unit 1 exists, and so on.
2081 */
2082
2083 if (blogic_cmd(adapter, BLOGIC_INQ_DEV0TO7, NULL, 0,
2084 &installed_devs0to7, sizeof(installed_devs0to7))
2085 != sizeof(installed_devs0to7))
2086 return blogic_failure(adapter,
2087 "INQUIRE INSTALLED DEVICES ID 0 TO 7");
2088 for (tgt_id = 0; tgt_id < 8; tgt_id++)
2089 adapter->tgt_flags[tgt_id].tgt_exists =
2090 installed_devs0to7[tgt_id] != 0;
2091 }
2092 /*
2093 Issue the Inquire Setup Information command.
2094 */
2095 req_replylen = sizeof(setupinfo);
2096 if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen,
2097 sizeof(req_replylen), &setupinfo, sizeof(setupinfo))
2098 != sizeof(setupinfo))
2099 return blogic_failure(adapter, "INQUIRE SETUP INFORMATION");
2100 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2101 adapter->sync_offset[tgt_id] = (tgt_id < 8 ? setupinfo.sync0to7[tgt_id].offset : setupinfo.sync8to15[tgt_id - 8].offset);
2102 if (strcmp(adapter->fw_ver, "5.06L") >= 0)
2103 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2104 adapter->tgt_flags[tgt_id].wide_active = (tgt_id < 8 ? (setupinfo.wide_tx_active0to7 & (1 << tgt_id) ? true : false) : (setupinfo.wide_tx_active8to15 & (1 << (tgt_id - 8)) ? true : false));
2105 /*
2106 Issue the Inquire Synchronous Period command.
2107 */
2108 if (adapter->fw_ver[0] >= '3') {
2109
2110 /* Issue a Inquire Synchronous Period command. For each
2111 Target Device, a byte is returned which represents the
2112 Synchronous Transfer Period in units of 10 nanoseconds.
2113 */
2114
2115 req_replylen = sizeof(sync_period);
2116 if (blogic_cmd(adapter, BLOGIC_INQ_SYNC_PERIOD, &req_replylen,
2117 sizeof(req_replylen), &sync_period,
2118 sizeof(sync_period)) != sizeof(sync_period))
2119 return blogic_failure(adapter,
2120 "INQUIRE SYNCHRONOUS PERIOD");
2121 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2122 adapter->sync_period[tgt_id] = sync_period[tgt_id];
2123 } else
2124 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2125 if (setupinfo.sync0to7[tgt_id].offset > 0)
2126 adapter->sync_period[tgt_id] = 20 + 5 * setupinfo.sync0to7[tgt_id].tx_period;
2127 /*
2128 Indicate the Target Device Inquiry completed successfully.
2129 */
2130 return true;
2131}
2132
2133/*
2134 blogic_inithoststruct initializes the fields in the SCSI Host
2135 structure. The base, io_port, n_io_ports, irq, and dma_channel fields in the
2136 SCSI Host structure are intentionally left uninitialized, as this driver
2137 handles acquisition and release of these resources explicitly, as well as
2138 ensuring exclusive access to the Host Adapter hardware and data structures
2139 through explicit acquisition and release of the Host Adapter's Lock.
2140*/
2141
2142static void __init blogic_inithoststruct(struct blogic_adapter *adapter,
2143 struct Scsi_Host *host)
2144{
2145 host->max_id = adapter->maxdev;
2146 host->max_lun = adapter->maxlun;
2147 host->max_channel = 0;
2148 host->unique_id = adapter->io_addr;
2149 host->this_id = adapter->scsi_id;
2150 host->can_queue = adapter->drvr_qdepth;
2151 host->sg_tablesize = adapter->drvr_sglimit;
2152 host->cmd_per_lun = adapter->untag_qdepth;
2153}
2154
2155/*
2156 blogic_slaveconfig will actually set the queue depth on individual
2157 scsi devices as they are permanently added to the device chain. We
2158 shamelessly rip off the SelectQueueDepths code to make this work mostly
2159 like it used to. Since we don't get called once at the end of the scan
2160 but instead get called for each device, we have to do things a bit
2161 differently.
2162*/
2163static int blogic_slaveconfig(struct scsi_device *dev)
2164{
2165 struct blogic_adapter *adapter =
2166 (struct blogic_adapter *) dev->host->hostdata;
2167 int tgt_id = dev->id;
2168 int qdepth = adapter->qdepth[tgt_id];
2169
2170 if (adapter->tgt_flags[tgt_id].tagq_ok &&
2171 (adapter->tagq_ok & (1 << tgt_id))) {
2172 if (qdepth == 0)
2173 qdepth = BLOGIC_MAX_AUTO_TAG_DEPTH;
2174 adapter->qdepth[tgt_id] = qdepth;
2175 scsi_change_queue_depth(dev, qdepth);
2176 } else {
2177 adapter->tagq_ok &= ~(1 << tgt_id);
2178 qdepth = adapter->untag_qdepth;
2179 adapter->qdepth[tgt_id] = qdepth;
2180 scsi_change_queue_depth(dev, qdepth);
2181 }
2182 qdepth = 0;
2183 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
2184 if (adapter->tgt_flags[tgt_id].tgt_exists)
2185 qdepth += adapter->qdepth[tgt_id];
2186 if (qdepth > adapter->alloc_ccbs)
2187 blogic_create_addlccbs(adapter, qdepth - adapter->alloc_ccbs,
2188 false);
2189 return 0;
2190}
2191
2192/*
2193 blogic_init probes for BusLogic Host Adapters at the standard
2194 I/O Addresses where they may be located, initializing, registering, and
2195 reporting the configuration of each BusLogic Host Adapter it finds. It
2196 returns the number of BusLogic Host Adapters successfully initialized and
2197 registered.
2198*/
2199
2200static int __init blogic_init(void)
2201{
2202 int drvr_optindex = 0, probeindex;
2203 struct blogic_adapter *adapter;
2204 int ret = 0;
2205
2206#ifdef MODULE
2207 if (BusLogic)
2208 blogic_setup(BusLogic);
2209#endif
2210
2211 if (blogic_probe_options.noprobe)
2212 return -ENODEV;
2213 blogic_probeinfo_list =
2214 kcalloc(BLOGIC_MAX_ADAPTERS, sizeof(struct blogic_probeinfo),
2215 GFP_KERNEL);
2216 if (blogic_probeinfo_list == NULL) {
2217 blogic_err("BusLogic: Unable to allocate Probe Info List\n",
2218 NULL);
2219 return -ENOMEM;
2220 }
2221
2222 adapter = kzalloc(sizeof(struct blogic_adapter), GFP_KERNEL);
2223 if (adapter == NULL) {
2224 kfree(blogic_probeinfo_list);
2225 blogic_err("BusLogic: Unable to allocate Prototype Host Adapter\n", NULL);
2226 return -ENOMEM;
2227 }
2228
2229#ifdef MODULE
2230 if (BusLogic != NULL)
2231 blogic_setup(BusLogic);
2232#endif
2233 blogic_init_probeinfo_list(adapter);
2234 for (probeindex = 0; probeindex < blogic_probeinfo_count; probeindex++) {
2235 struct blogic_probeinfo *probeinfo =
2236 &blogic_probeinfo_list[probeindex];
2237 struct blogic_adapter *myadapter = adapter;
2238 struct Scsi_Host *host;
2239
2240 if (probeinfo->io_addr == 0)
2241 continue;
2242 memset(myadapter, 0, sizeof(struct blogic_adapter));
2243 myadapter->adapter_type = probeinfo->adapter_type;
2244 myadapter->adapter_bus_type = probeinfo->adapter_bus_type;
2245 myadapter->io_addr = probeinfo->io_addr;
2246 myadapter->pci_addr = probeinfo->pci_addr;
2247 myadapter->bus = probeinfo->bus;
2248 myadapter->dev = probeinfo->dev;
2249 myadapter->pci_device = probeinfo->pci_device;
2250 myadapter->irq_ch = probeinfo->irq_ch;
2251 myadapter->addr_count =
2252 blogic_adapter_addr_count[myadapter->adapter_type];
2253
2254 /*
2255 Make sure region is free prior to probing.
2256 */
2257 if (!request_region(myadapter->io_addr, myadapter->addr_count,
2258 "BusLogic"))
2259 continue;
2260 /*
2261 Probe the Host Adapter. If unsuccessful, abort further
2262 initialization.
2263 */
2264 if (!blogic_probe(myadapter)) {
2265 release_region(myadapter->io_addr,
2266 myadapter->addr_count);
2267 continue;
2268 }
2269 /*
2270 Hard Reset the Host Adapter. If unsuccessful, abort further
2271 initialization.
2272 */
2273 if (!blogic_hwreset(myadapter, true)) {
2274 release_region(myadapter->io_addr,
2275 myadapter->addr_count);
2276 continue;
2277 }
2278 /*
2279 Check the Host Adapter. If unsuccessful, abort further
2280 initialization.
2281 */
2282 if (!blogic_checkadapter(myadapter)) {
2283 release_region(myadapter->io_addr,
2284 myadapter->addr_count);
2285 continue;
2286 }
2287 /*
2288 Initialize the Driver Options field if provided.
2289 */
2290 if (drvr_optindex < blogic_drvr_options_count)
2291 myadapter->drvr_opts =
2292 &blogic_drvr_options[drvr_optindex++];
2293 /*
2294 Announce the Driver Version and Date, Author's Name,
2295 Copyright Notice, and Electronic Mail Address.
2296 */
2297 blogic_announce_drvr(myadapter);
2298 /*
2299 Register the SCSI Host structure.
2300 */
2301
2302 host = scsi_host_alloc(&blogic_template,
2303 sizeof(struct blogic_adapter));
2304 if (host == NULL) {
2305 release_region(myadapter->io_addr,
2306 myadapter->addr_count);
2307 continue;
2308 }
2309 myadapter = (struct blogic_adapter *) host->hostdata;
2310 memcpy(myadapter, adapter, sizeof(struct blogic_adapter));
2311 myadapter->scsi_host = host;
2312 myadapter->host_no = host->host_no;
2313 /*
2314 Add Host Adapter to the end of the list of registered
2315 BusLogic Host Adapters.
2316 */
2317 list_add_tail(&myadapter->host_list, &blogic_host_list);
2318
2319 /*
2320 Read the Host Adapter Configuration, Configure the Host
2321 Adapter, Acquire the System Resources necessary to use
2322 the Host Adapter, then Create the Initial CCBs, Initialize
2323 the Host Adapter, and finally perform Target Device
2324 Inquiry. From this point onward, any failure will be
2325 assumed to be due to a problem with the Host Adapter,
2326 rather than due to having mistakenly identified this port
2327 as belonging to a BusLogic Host Adapter. The I/O Address
2328 range will not be released, thereby preventing it from
2329 being incorrectly identified as any other type of Host
2330 Adapter.
2331 */
2332 if (blogic_rdconfig(myadapter) &&
2333 blogic_reportconfig(myadapter) &&
2334 blogic_getres(myadapter) &&
2335 blogic_create_initccbs(myadapter) &&
2336 blogic_initadapter(myadapter) &&
2337 blogic_inquiry(myadapter)) {
2338 /*
2339 Initialization has been completed successfully.
2340 Release and re-register usage of the I/O Address
2341 range so that the Model Name of the Host Adapter
2342 will appear, and initialize the SCSI Host structure.
2343 */
2344 release_region(myadapter->io_addr,
2345 myadapter->addr_count);
2346 if (!request_region(myadapter->io_addr,
2347 myadapter->addr_count,
2348 myadapter->full_model)) {
2349 printk(KERN_WARNING
2350 "BusLogic: Release and re-register of "
2351 "port 0x%04lx failed \n",
2352 (unsigned long)myadapter->io_addr);
2353 blogic_destroy_ccbs(myadapter);
2354 blogic_relres(myadapter);
2355 list_del(&myadapter->host_list);
2356 scsi_host_put(host);
2357 ret = -ENOMEM;
2358 } else {
2359 blogic_inithoststruct(myadapter,
2360 host);
2361 if (scsi_add_host(host, myadapter->pci_device
2362 ? &myadapter->pci_device->dev
2363 : NULL)) {
2364 printk(KERN_WARNING
2365 "BusLogic: scsi_add_host()"
2366 "failed!\n");
2367 blogic_destroy_ccbs(myadapter);
2368 blogic_relres(myadapter);
2369 list_del(&myadapter->host_list);
2370 scsi_host_put(host);
2371 ret = -ENODEV;
2372 } else
2373 scsi_scan_host(host);
2374 }
2375 } else {
2376 /*
2377 An error occurred during Host Adapter Configuration
2378 Querying, Host Adapter Configuration, Resource
2379 Acquisition, CCB Creation, Host Adapter
2380 Initialization, or Target Device Inquiry, so
2381 remove Host Adapter from the list of registered
2382 BusLogic Host Adapters, destroy the CCBs, Release
2383 the System Resources, and Unregister the SCSI
2384 Host.
2385 */
2386 blogic_destroy_ccbs(myadapter);
2387 blogic_relres(myadapter);
2388 list_del(&myadapter->host_list);
2389 scsi_host_put(host);
2390 ret = -ENODEV;
2391 }
2392 }
2393 kfree(adapter);
2394 kfree(blogic_probeinfo_list);
2395 blogic_probeinfo_list = NULL;
2396 return ret;
2397}
2398
2399
2400/*
2401 blogic_deladapter releases all resources previously acquired to
2402 support a specific Host Adapter, including the I/O Address range, and
2403 unregisters the BusLogic Host Adapter.
2404*/
2405
2406static int __exit blogic_deladapter(struct blogic_adapter *adapter)
2407{
2408 struct Scsi_Host *host = adapter->scsi_host;
2409
2410 scsi_remove_host(host);
2411
2412 /*
2413 FlashPoint Host Adapters must first be released by the FlashPoint
2414 SCCB Manager.
2415 */
2416 if (blogic_flashpoint_type(adapter))
2417 FlashPoint_ReleaseHostAdapter(adapter->cardhandle);
2418 /*
2419 Destroy the CCBs and release any system resources acquired to
2420 support Host Adapter.
2421 */
2422 blogic_destroy_ccbs(adapter);
2423 blogic_relres(adapter);
2424 /*
2425 Release usage of the I/O Address range.
2426 */
2427 release_region(adapter->io_addr, adapter->addr_count);
2428 /*
2429 Remove Host Adapter from the list of registered BusLogic
2430 Host Adapters.
2431 */
2432 list_del(&adapter->host_list);
2433
2434 scsi_host_put(host);
2435 return 0;
2436}
2437
2438
2439/*
2440 blogic_qcompleted_ccb queues CCB for completion processing.
2441*/
2442
2443static void blogic_qcompleted_ccb(struct blogic_ccb *ccb)
2444{
2445 struct blogic_adapter *adapter = ccb->adapter;
2446
2447 ccb->status = BLOGIC_CCB_COMPLETE;
2448 ccb->next = NULL;
2449 if (adapter->firstccb == NULL) {
2450 adapter->firstccb = ccb;
2451 adapter->lastccb = ccb;
2452 } else {
2453 adapter->lastccb->next = ccb;
2454 adapter->lastccb = ccb;
2455 }
2456 adapter->active_cmds[ccb->tgt_id]--;
2457}
2458
2459
2460/*
2461 blogic_resultcode computes a SCSI Subsystem Result Code from
2462 the Host Adapter Status and Target Device Status.
2463*/
2464
2465static int blogic_resultcode(struct blogic_adapter *adapter,
2466 enum blogic_adapter_status adapter_status,
2467 enum blogic_tgt_status tgt_status)
2468{
2469 int hoststatus;
2470
2471 switch (adapter_status) {
2472 case BLOGIC_CMD_CMPLT_NORMAL:
2473 case BLOGIC_LINK_CMD_CMPLT:
2474 case BLOGIC_LINK_CMD_CMPLT_FLAG:
2475 hoststatus = DID_OK;
2476 break;
2477 case BLOGIC_SELECT_TIMEOUT:
2478 hoststatus = DID_TIME_OUT;
2479 break;
2480 case BLOGIC_INVALID_OUTBOX_CODE:
2481 case BLOGIC_INVALID_CMD_CODE:
2482 case BLOGIC_BAD_CMD_PARAM:
2483 blogic_warn("BusLogic Driver Protocol Error 0x%02X\n",
2484 adapter, adapter_status);
2485 fallthrough;
2486 case BLOGIC_DATA_UNDERRUN:
2487 case BLOGIC_DATA_OVERRUN:
2488 case BLOGIC_NOEXPECT_BUSFREE:
2489 case BLOGIC_LINKCCB_BADLUN:
2490 case BLOGIC_AUTOREQSENSE_FAIL:
2491 case BLOGIC_TAGQUEUE_REJECT:
2492 case BLOGIC_BAD_MSG_RCVD:
2493 case BLOGIC_HW_FAIL:
2494 case BLOGIC_BAD_RECONNECT:
2495 case BLOGIC_ABRT_QUEUE:
2496 case BLOGIC_ADAPTER_SW_ERROR:
2497 case BLOGIC_HW_TIMEOUT:
2498 case BLOGIC_PARITY_ERR:
2499 hoststatus = DID_ERROR;
2500 break;
2501 case BLOGIC_INVALID_BUSPHASE:
2502 case BLOGIC_NORESPONSE_TO_ATN:
2503 case BLOGIC_HW_RESET:
2504 case BLOGIC_RST_FROM_OTHERDEV:
2505 case BLOGIC_HW_BDR:
2506 hoststatus = DID_RESET;
2507 break;
2508 default:
2509 blogic_warn("Unknown Host Adapter Status 0x%02X\n", adapter,
2510 adapter_status);
2511 hoststatus = DID_ERROR;
2512 break;
2513 }
2514 return (hoststatus << 16) | tgt_status;
2515}
2516
2517/*
2518 * turn the dma address from an inbox into a ccb pointer
2519 * This is rather inefficient.
2520 */
2521static struct blogic_ccb *
2522blogic_inbox_to_ccb(struct blogic_adapter *adapter, struct blogic_inbox *inbox)
2523{
2524 struct blogic_ccb *ccb;
2525
2526 for (ccb = adapter->all_ccbs; ccb; ccb = ccb->next_all)
2527 if (inbox->ccb == ccb->dma_handle)
2528 break;
2529
2530 return ccb;
2531}
2532
2533/*
2534 blogic_scan_inbox scans the Incoming Mailboxes saving any
2535 Incoming Mailbox entries for completion processing.
2536*/
2537static void blogic_scan_inbox(struct blogic_adapter *adapter)
2538{
2539 /*
2540 Scan through the Incoming Mailboxes in Strict Round Robin
2541 fashion, saving any completed CCBs for further processing. It
2542 is essential that for each CCB and SCSI Command issued, command
2543 completion processing is performed exactly once. Therefore,
2544 only Incoming Mailboxes with completion code Command Completed
2545 Without Error, Command Completed With Error, or Command Aborted
2546 At Host Request are saved for completion processing. When an
2547 Incoming Mailbox has a completion code of Aborted Command Not
2548 Found, the CCB had already completed or been aborted before the
2549 current Abort request was processed, and so completion processing
2550 has already occurred and no further action should be taken.
2551 */
2552 struct blogic_inbox *next_inbox = adapter->next_inbox;
2553 enum blogic_cmplt_code comp_code;
2554
2555 while ((comp_code = next_inbox->comp_code) != BLOGIC_INBOX_FREE) {
2556 struct blogic_ccb *ccb = blogic_inbox_to_ccb(adapter, next_inbox);
2557 if (!ccb) {
2558 /*
2559 * This should never happen, unless the CCB list is
2560 * corrupted in memory.
2561 */
2562 blogic_warn("Could not find CCB for dma address %x\n", adapter, next_inbox->ccb);
2563 } else if (comp_code != BLOGIC_CMD_NOTFOUND) {
2564 if (ccb->status == BLOGIC_CCB_ACTIVE ||
2565 ccb->status == BLOGIC_CCB_RESET) {
2566 /*
2567 Save the Completion Code for this CCB and
2568 queue the CCB for completion processing.
2569 */
2570 ccb->comp_code = comp_code;
2571 blogic_qcompleted_ccb(ccb);
2572 } else {
2573 /*
2574 If a CCB ever appears in an Incoming Mailbox
2575 and is not marked as status Active or Reset,
2576 then there is most likely a bug in
2577 the Host Adapter firmware.
2578 */
2579 blogic_warn("Illegal CCB #%ld status %d in Incoming Mailbox\n", adapter, ccb->serial, ccb->status);
2580 }
2581 }
2582 next_inbox->comp_code = BLOGIC_INBOX_FREE;
2583 if (++next_inbox > adapter->last_inbox)
2584 next_inbox = adapter->first_inbox;
2585 }
2586 adapter->next_inbox = next_inbox;
2587}
2588
2589
2590/*
2591 blogic_process_ccbs iterates over the completed CCBs for Host
2592 Adapter setting the SCSI Command Result Codes, deallocating the CCBs, and
2593 calling the SCSI Subsystem Completion Routines. The Host Adapter's Lock
2594 should already have been acquired by the caller.
2595*/
2596
2597static void blogic_process_ccbs(struct blogic_adapter *adapter)
2598{
2599 if (adapter->processing_ccbs)
2600 return;
2601 adapter->processing_ccbs = true;
2602 while (adapter->firstccb != NULL) {
2603 struct blogic_ccb *ccb = adapter->firstccb;
2604 struct scsi_cmnd *command = ccb->command;
2605 adapter->firstccb = ccb->next;
2606 if (adapter->firstccb == NULL)
2607 adapter->lastccb = NULL;
2608 /*
2609 Process the Completed CCB.
2610 */
2611 if (ccb->opcode == BLOGIC_BDR) {
2612 int tgt_id = ccb->tgt_id;
2613
2614 blogic_warn("Bus Device Reset CCB #%ld to Target %d Completed\n", adapter, ccb->serial, tgt_id);
2615 blogic_inc_count(&adapter->tgt_stats[tgt_id].bdr_done);
2616 adapter->tgt_flags[tgt_id].tagq_active = false;
2617 adapter->cmds_since_rst[tgt_id] = 0;
2618 adapter->last_resetdone[tgt_id] = jiffies;
2619 /*
2620 Place CCB back on the Host Adapter's free list.
2621 */
2622 blogic_dealloc_ccb(ccb, 1);
2623#if 0 /* this needs to be redone different for new EH */
2624 /*
2625 Bus Device Reset CCBs have the command field
2626 non-NULL only when a Bus Device Reset was requested
2627 for a command that did not have a currently active
2628 CCB in the Host Adapter (i.e., a Synchronous Bus
2629 Device Reset), and hence would not have its
2630 Completion Routine called otherwise.
2631 */
2632 while (command != NULL) {
2633 struct scsi_cmnd *nxt_cmd =
2634 command->reset_chain;
2635 command->reset_chain = NULL;
2636 command->result = DID_RESET << 16;
2637 scsi_done(command);
2638 command = nxt_cmd;
2639 }
2640#endif
2641 /*
2642 Iterate over the CCBs for this Host Adapter
2643 performing completion processing for any CCBs
2644 marked as Reset for this Target.
2645 */
2646 for (ccb = adapter->all_ccbs; ccb != NULL;
2647 ccb = ccb->next_all)
2648 if (ccb->status == BLOGIC_CCB_RESET &&
2649 ccb->tgt_id == tgt_id) {
2650 command = ccb->command;
2651 blogic_dealloc_ccb(ccb, 1);
2652 adapter->active_cmds[tgt_id]--;
2653 command->result = DID_RESET << 16;
2654 scsi_done(command);
2655 }
2656 adapter->bdr_pend[tgt_id] = NULL;
2657 } else {
2658 /*
2659 Translate the Completion Code, Host Adapter Status,
2660 and Target Device Status into a SCSI Subsystem
2661 Result Code.
2662 */
2663 switch (ccb->comp_code) {
2664 case BLOGIC_INBOX_FREE:
2665 case BLOGIC_CMD_NOTFOUND:
2666 case BLOGIC_INVALID_CCB:
2667 blogic_warn("CCB #%ld to Target %d Impossible State\n", adapter, ccb->serial, ccb->tgt_id);
2668 break;
2669 case BLOGIC_CMD_COMPLETE_GOOD:
2670 adapter->tgt_stats[ccb->tgt_id]
2671 .cmds_complete++;
2672 adapter->tgt_flags[ccb->tgt_id]
2673 .cmd_good = true;
2674 command->result = DID_OK << 16;
2675 break;
2676 case BLOGIC_CMD_ABORT_BY_HOST:
2677 blogic_warn("CCB #%ld to Target %d Aborted\n",
2678 adapter, ccb->serial, ccb->tgt_id);
2679 blogic_inc_count(&adapter->tgt_stats[ccb->tgt_id].aborts_done);
2680 command->result = DID_ABORT << 16;
2681 break;
2682 case BLOGIC_CMD_COMPLETE_ERROR:
2683 command->result = blogic_resultcode(adapter,
2684 ccb->adapter_status, ccb->tgt_status);
2685 if (ccb->adapter_status != BLOGIC_SELECT_TIMEOUT) {
2686 adapter->tgt_stats[ccb->tgt_id]
2687 .cmds_complete++;
2688 if (blogic_global_options.trace_err) {
2689 int i;
2690 blogic_notice("CCB #%ld Target %d: Result %X Host "
2691 "Adapter Status %02X Target Status %02X\n", adapter, ccb->serial, ccb->tgt_id, command->result, ccb->adapter_status, ccb->tgt_status);
2692 blogic_notice("CDB ", adapter);
2693 for (i = 0; i < ccb->cdblen; i++)
2694 blogic_notice(" %02X", adapter, ccb->cdb[i]);
2695 blogic_notice("\n", adapter);
2696 blogic_notice("Sense ", adapter);
2697 for (i = 0; i < ccb->sense_datalen; i++)
2698 blogic_notice(" %02X", adapter, command->sense_buffer[i]);
2699 blogic_notice("\n", adapter);
2700 }
2701 }
2702 break;
2703 }
2704 /*
2705 When an INQUIRY command completes normally, save the
2706 CmdQue (Tagged Queuing Supported) and WBus16 (16 Bit
2707 Wide Data Transfers Supported) bits.
2708 */
2709 if (ccb->cdb[0] == INQUIRY && ccb->cdb[1] == 0 &&
2710 ccb->adapter_status == BLOGIC_CMD_CMPLT_NORMAL) {
2711 struct blogic_tgt_flags *tgt_flags =
2712 &adapter->tgt_flags[ccb->tgt_id];
2713 struct scsi_inquiry *inquiry =
2714 (struct scsi_inquiry *) scsi_sglist(command);
2715 tgt_flags->tgt_exists = true;
2716 tgt_flags->tagq_ok = inquiry->CmdQue;
2717 tgt_flags->wide_ok = inquiry->WBus16;
2718 }
2719 /*
2720 Place CCB back on the Host Adapter's free list.
2721 */
2722 blogic_dealloc_ccb(ccb, 1);
2723 /*
2724 Call the SCSI Command Completion Routine.
2725 */
2726 scsi_done(command);
2727 }
2728 }
2729 adapter->processing_ccbs = false;
2730}
2731
2732
2733/*
2734 blogic_inthandler handles hardware interrupts from BusLogic Host
2735 Adapters.
2736*/
2737
2738static irqreturn_t blogic_inthandler(int irq_ch, void *devid)
2739{
2740 struct blogic_adapter *adapter = (struct blogic_adapter *) devid;
2741 unsigned long processor_flag;
2742 /*
2743 Acquire exclusive access to Host Adapter.
2744 */
2745 spin_lock_irqsave(adapter->scsi_host->host_lock, processor_flag);
2746 /*
2747 Handle Interrupts appropriately for each Host Adapter type.
2748 */
2749 if (blogic_multimaster_type(adapter)) {
2750 union blogic_int_reg intreg;
2751 /*
2752 Read the Host Adapter Interrupt Register.
2753 */
2754 intreg.all = blogic_rdint(adapter);
2755 if (intreg.ir.int_valid) {
2756 /*
2757 Acknowledge the interrupt and reset the Host Adapter
2758 Interrupt Register.
2759 */
2760 blogic_intreset(adapter);
2761 /*
2762 Process valid External SCSI Bus Reset and Incoming
2763 Mailbox Loaded Interrupts. Command Complete
2764 Interrupts are noted, and Outgoing Mailbox Available
2765 Interrupts are ignored, as they are never enabled.
2766 */
2767 if (intreg.ir.ext_busreset)
2768 adapter->adapter_extreset = true;
2769 else if (intreg.ir.mailin_loaded)
2770 blogic_scan_inbox(adapter);
2771 else if (intreg.ir.cmd_complete)
2772 adapter->adapter_cmd_complete = true;
2773 }
2774 } else {
2775 /*
2776 Check if there is a pending interrupt for this Host Adapter.
2777 */
2778 if (FlashPoint_InterruptPending(adapter->cardhandle))
2779 switch (FlashPoint_HandleInterrupt(adapter->cardhandle)) {
2780 case FPOINT_NORMAL_INT:
2781 break;
2782 case FPOINT_EXT_RESET:
2783 adapter->adapter_extreset = true;
2784 break;
2785 case FPOINT_INTERN_ERR:
2786 blogic_warn("Internal FlashPoint Error detected - Resetting Host Adapter\n", adapter);
2787 adapter->adapter_intern_err = true;
2788 break;
2789 }
2790 }
2791 /*
2792 Process any completed CCBs.
2793 */
2794 if (adapter->firstccb != NULL)
2795 blogic_process_ccbs(adapter);
2796 /*
2797 Reset the Host Adapter if requested.
2798 */
2799 if (adapter->adapter_extreset) {
2800 blogic_warn("Resetting %s due to External SCSI Bus Reset\n", adapter, adapter->full_model);
2801 blogic_inc_count(&adapter->ext_resets);
2802 blogic_resetadapter(adapter, false);
2803 adapter->adapter_extreset = false;
2804 } else if (adapter->adapter_intern_err) {
2805 blogic_warn("Resetting %s due to Host Adapter Internal Error\n", adapter, adapter->full_model);
2806 blogic_inc_count(&adapter->adapter_intern_errors);
2807 blogic_resetadapter(adapter, true);
2808 adapter->adapter_intern_err = false;
2809 }
2810 /*
2811 Release exclusive access to Host Adapter.
2812 */
2813 spin_unlock_irqrestore(adapter->scsi_host->host_lock, processor_flag);
2814 return IRQ_HANDLED;
2815}
2816
2817
2818/*
2819 blogic_write_outbox places CCB and Action Code into an Outgoing
2820 Mailbox for execution by Host Adapter. The Host Adapter's Lock should
2821 already have been acquired by the caller.
2822*/
2823
2824static bool blogic_write_outbox(struct blogic_adapter *adapter,
2825 enum blogic_action action, struct blogic_ccb *ccb)
2826{
2827 struct blogic_outbox *next_outbox;
2828
2829 next_outbox = adapter->next_outbox;
2830 if (next_outbox->action == BLOGIC_OUTBOX_FREE) {
2831 ccb->status = BLOGIC_CCB_ACTIVE;
2832 /*
2833 The CCB field must be written before the Action Code field
2834 since the Host Adapter is operating asynchronously and the
2835 locking code does not protect against simultaneous access
2836 by the Host Adapter.
2837 */
2838 next_outbox->ccb = ccb->dma_handle;
2839 next_outbox->action = action;
2840 blogic_execmbox(adapter);
2841 if (++next_outbox > adapter->last_outbox)
2842 next_outbox = adapter->first_outbox;
2843 adapter->next_outbox = next_outbox;
2844 if (action == BLOGIC_MBOX_START) {
2845 adapter->active_cmds[ccb->tgt_id]++;
2846 if (ccb->opcode != BLOGIC_BDR)
2847 adapter->tgt_stats[ccb->tgt_id].cmds_tried++;
2848 }
2849 return true;
2850 }
2851 return false;
2852}
2853
2854/* Error Handling (EH) support */
2855
2856static int blogic_hostreset(struct scsi_cmnd *SCpnt)
2857{
2858 struct blogic_adapter *adapter =
2859 (struct blogic_adapter *) SCpnt->device->host->hostdata;
2860
2861 unsigned int id = SCpnt->device->id;
2862 struct blogic_tgt_stats *stats = &adapter->tgt_stats[id];
2863 int rc;
2864
2865 spin_lock_irq(SCpnt->device->host->host_lock);
2866
2867 blogic_inc_count(&stats->adapter_reset_req);
2868
2869 rc = blogic_resetadapter(adapter, false);
2870 spin_unlock_irq(SCpnt->device->host->host_lock);
2871 return rc;
2872}
2873
2874/*
2875 blogic_qcmd creates a CCB for Command and places it into an
2876 Outgoing Mailbox for execution by the associated Host Adapter.
2877*/
2878
2879static int blogic_qcmd_lck(struct scsi_cmnd *command)
2880{
2881 void (*comp_cb)(struct scsi_cmnd *) = scsi_done;
2882 struct blogic_adapter *adapter =
2883 (struct blogic_adapter *) command->device->host->hostdata;
2884 struct blogic_tgt_flags *tgt_flags =
2885 &adapter->tgt_flags[command->device->id];
2886 struct blogic_tgt_stats *tgt_stats = adapter->tgt_stats;
2887 unsigned char *cdb = command->cmnd;
2888 int cdblen = command->cmd_len;
2889 int tgt_id = command->device->id;
2890 int lun = command->device->lun;
2891 int buflen = scsi_bufflen(command);
2892 int count;
2893 struct blogic_ccb *ccb;
2894 dma_addr_t sense_buf;
2895
2896 /*
2897 SCSI REQUEST_SENSE commands will be executed automatically by the
2898 Host Adapter for any errors, so they should not be executed
2899 explicitly unless the Sense Data is zero indicating that no error
2900 occurred.
2901 */
2902 if (cdb[0] == REQUEST_SENSE && command->sense_buffer[0] != 0) {
2903 command->result = DID_OK << 16;
2904 comp_cb(command);
2905 return 0;
2906 }
2907 /*
2908 Allocate a CCB from the Host Adapter's free list. In the unlikely
2909 event that there are none available and memory allocation fails,
2910 wait 1 second and try again. If that fails, the Host Adapter is
2911 probably hung so signal an error as a Host Adapter Hard Reset
2912 should be initiated soon.
2913 */
2914 ccb = blogic_alloc_ccb(adapter);
2915 if (ccb == NULL) {
2916 spin_unlock_irq(adapter->scsi_host->host_lock);
2917 blogic_delay(1);
2918 spin_lock_irq(adapter->scsi_host->host_lock);
2919 ccb = blogic_alloc_ccb(adapter);
2920 if (ccb == NULL) {
2921 command->result = DID_ERROR << 16;
2922 comp_cb(command);
2923 return 0;
2924 }
2925 }
2926
2927 /*
2928 Initialize the fields in the BusLogic Command Control Block (CCB).
2929 */
2930 count = scsi_dma_map(command);
2931 BUG_ON(count < 0);
2932 if (count) {
2933 struct scatterlist *sg;
2934 int i;
2935
2936 ccb->opcode = BLOGIC_INITIATOR_CCB_SG;
2937 ccb->datalen = count * sizeof(struct blogic_sg_seg);
2938 if (blogic_multimaster_type(adapter))
2939 ccb->data = (unsigned int) ccb->dma_handle +
2940 ((unsigned long) &ccb->sglist -
2941 (unsigned long) ccb);
2942 else
2943 ccb->data = virt_to_32bit_virt(ccb->sglist);
2944
2945 scsi_for_each_sg(command, sg, count, i) {
2946 ccb->sglist[i].segbytes = sg_dma_len(sg);
2947 ccb->sglist[i].segdata = sg_dma_address(sg);
2948 }
2949 } else if (!count) {
2950 ccb->opcode = BLOGIC_INITIATOR_CCB;
2951 ccb->datalen = buflen;
2952 ccb->data = 0;
2953 }
2954
2955 switch (cdb[0]) {
2956 case READ_6:
2957 case READ_10:
2958 ccb->datadir = BLOGIC_DATAIN_CHECKED;
2959 tgt_stats[tgt_id].read_cmds++;
2960 blogic_addcount(&tgt_stats[tgt_id].bytesread, buflen);
2961 blogic_incszbucket(tgt_stats[tgt_id].read_sz_buckets, buflen);
2962 break;
2963 case WRITE_6:
2964 case WRITE_10:
2965 ccb->datadir = BLOGIC_DATAOUT_CHECKED;
2966 tgt_stats[tgt_id].write_cmds++;
2967 blogic_addcount(&tgt_stats[tgt_id].byteswritten, buflen);
2968 blogic_incszbucket(tgt_stats[tgt_id].write_sz_buckets, buflen);
2969 break;
2970 default:
2971 ccb->datadir = BLOGIC_UNCHECKED_TX;
2972 break;
2973 }
2974 ccb->cdblen = cdblen;
2975 ccb->adapter_status = 0;
2976 ccb->tgt_status = 0;
2977 ccb->tgt_id = tgt_id;
2978 ccb->lun = lun;
2979 ccb->tag_enable = false;
2980 ccb->legacytag_enable = false;
2981 /*
2982 BusLogic recommends that after a Reset the first couple of
2983 commands that are sent to a Target Device be sent in a non
2984 Tagged Queue fashion so that the Host Adapter and Target Device
2985 can establish Synchronous and Wide Transfer before Queue Tag
2986 messages can interfere with the Synchronous and Wide Negotiation
2987 messages. By waiting to enable Tagged Queuing until after the
2988 first BLOGIC_MAX_TAG_DEPTH commands have been queued, it is
2989 assured that after a Reset any pending commands are requeued
2990 before Tagged Queuing is enabled and that the Tagged Queuing
2991 message will not occur while the partition table is being printed.
2992 In addition, some devices do not properly handle the transition
2993 from non-tagged to tagged commands, so it is necessary to wait
2994 until there are no pending commands for a target device
2995 before queuing tagged commands.
2996 */
2997 if (adapter->cmds_since_rst[tgt_id]++ >= BLOGIC_MAX_TAG_DEPTH &&
2998 !tgt_flags->tagq_active &&
2999 adapter->active_cmds[tgt_id] == 0
3000 && tgt_flags->tagq_ok &&
3001 (adapter->tagq_ok & (1 << tgt_id))) {
3002 tgt_flags->tagq_active = true;
3003 blogic_notice("Tagged Queuing now active for Target %d\n",
3004 adapter, tgt_id);
3005 }
3006 if (tgt_flags->tagq_active) {
3007 enum blogic_queuetag queuetag = BLOGIC_SIMPLETAG;
3008 /*
3009 When using Tagged Queuing with Simple Queue Tags, it
3010 appears that disk drive controllers do not guarantee that
3011 a queued command will not remain in a disconnected state
3012 indefinitely if commands that read or write nearer the
3013 head position continue to arrive without interruption.
3014 Therefore, for each Target Device this driver keeps track
3015 of the last time either the queue was empty or an Ordered
3016 Queue Tag was issued. If more than 4 seconds (one fifth
3017 of the 20 second disk timeout) have elapsed since this
3018 last sequence point, this command will be issued with an
3019 Ordered Queue Tag rather than a Simple Queue Tag, which
3020 forces the Target Device to complete all previously
3021 queued commands before this command may be executed.
3022 */
3023 if (adapter->active_cmds[tgt_id] == 0)
3024 adapter->last_seqpoint[tgt_id] = jiffies;
3025 else if (time_after(jiffies,
3026 adapter->last_seqpoint[tgt_id] + 4 * HZ)) {
3027 adapter->last_seqpoint[tgt_id] = jiffies;
3028 queuetag = BLOGIC_ORDEREDTAG;
3029 }
3030 if (adapter->ext_lun) {
3031 ccb->tag_enable = true;
3032 ccb->queuetag = queuetag;
3033 } else {
3034 ccb->legacytag_enable = true;
3035 ccb->legacy_tag = queuetag;
3036 }
3037 }
3038 memcpy(ccb->cdb, cdb, cdblen);
3039 ccb->sense_datalen = SCSI_SENSE_BUFFERSIZE;
3040 ccb->command = command;
3041 sense_buf = dma_map_single(&adapter->pci_device->dev,
3042 command->sense_buffer, ccb->sense_datalen,
3043 DMA_FROM_DEVICE);
3044 if (dma_mapping_error(&adapter->pci_device->dev, sense_buf)) {
3045 blogic_err("DMA mapping for sense data buffer failed\n",
3046 adapter);
3047 blogic_dealloc_ccb(ccb, 0);
3048 return SCSI_MLQUEUE_HOST_BUSY;
3049 }
3050 ccb->sensedata = sense_buf;
3051 if (blogic_multimaster_type(adapter)) {
3052 /*
3053 Place the CCB in an Outgoing Mailbox. The higher levels
3054 of the SCSI Subsystem should not attempt to queue more
3055 commands than can be placed in Outgoing Mailboxes, so
3056 there should always be one free. In the unlikely event
3057 that there are none available, wait 1 second and try
3058 again. If that fails, the Host Adapter is probably hung
3059 so signal an error as a Host Adapter Hard Reset should
3060 be initiated soon.
3061 */
3062 if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START, ccb)) {
3063 spin_unlock_irq(adapter->scsi_host->host_lock);
3064 blogic_warn("Unable to write Outgoing Mailbox - Pausing for 1 second\n", adapter);
3065 blogic_delay(1);
3066 spin_lock_irq(adapter->scsi_host->host_lock);
3067 if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START,
3068 ccb)) {
3069 blogic_warn("Still unable to write Outgoing Mailbox - Host Adapter Dead?\n", adapter);
3070 blogic_dealloc_ccb(ccb, 1);
3071 command->result = DID_ERROR << 16;
3072 scsi_done(command);
3073 }
3074 }
3075 } else {
3076 /*
3077 Call the FlashPoint SCCB Manager to start execution of
3078 the CCB.
3079 */
3080 ccb->status = BLOGIC_CCB_ACTIVE;
3081 adapter->active_cmds[tgt_id]++;
3082 tgt_stats[tgt_id].cmds_tried++;
3083 FlashPoint_StartCCB(adapter->cardhandle, ccb);
3084 /*
3085 The Command may have already completed and
3086 blogic_qcompleted_ccb been called, or it may still be
3087 pending.
3088 */
3089 if (ccb->status == BLOGIC_CCB_COMPLETE)
3090 blogic_process_ccbs(adapter);
3091 }
3092 return 0;
3093}
3094
3095static DEF_SCSI_QCMD(blogic_qcmd)
3096
3097#if 0
3098/*
3099 blogic_abort aborts Command if possible.
3100*/
3101
3102static int blogic_abort(struct scsi_cmnd *command)
3103{
3104 struct blogic_adapter *adapter =
3105 (struct blogic_adapter *) command->device->host->hostdata;
3106
3107 int tgt_id = command->device->id;
3108 struct blogic_ccb *ccb;
3109 blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_request);
3110
3111 /*
3112 Attempt to find an Active CCB for this Command. If no Active
3113 CCB for this Command is found, then no Abort is necessary.
3114 */
3115 for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
3116 if (ccb->command == command)
3117 break;
3118 if (ccb == NULL) {
3119 blogic_warn("Unable to Abort Command to Target %d - No CCB Found\n", adapter, tgt_id);
3120 return SUCCESS;
3121 } else if (ccb->status == BLOGIC_CCB_COMPLETE) {
3122 blogic_warn("Unable to Abort Command to Target %d - CCB Completed\n", adapter, tgt_id);
3123 return SUCCESS;
3124 } else if (ccb->status == BLOGIC_CCB_RESET) {
3125 blogic_warn("Unable to Abort Command to Target %d - CCB Reset\n", adapter, tgt_id);
3126 return SUCCESS;
3127 }
3128 if (blogic_multimaster_type(adapter)) {
3129 /*
3130 Attempt to Abort this CCB. MultiMaster Firmware versions
3131 prior to 5.xx do not generate Abort Tag messages, but only
3132 generate the non-tagged Abort message. Since non-tagged
3133 commands are not sent by the Host Adapter until the queue
3134 of outstanding tagged commands has completed, and the
3135 Abort message is treated as a non-tagged command, it is
3136 effectively impossible to abort commands when Tagged
3137 Queuing is active. Firmware version 5.xx does generate
3138 Abort Tag messages, so it is possible to abort commands
3139 when Tagged Queuing is active.
3140 */
3141 if (adapter->tgt_flags[tgt_id].tagq_active &&
3142 adapter->fw_ver[0] < '5') {
3143 blogic_warn("Unable to Abort CCB #%ld to Target %d - Abort Tag Not Supported\n", adapter, ccb->serial, tgt_id);
3144 return FAILURE;
3145 } else if (blogic_write_outbox(adapter, BLOGIC_MBOX_ABORT,
3146 ccb)) {
3147 blogic_warn("Aborting CCB #%ld to Target %d\n",
3148 adapter, ccb->serial, tgt_id);
3149 blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried);
3150 return SUCCESS;
3151 } else {
3152 blogic_warn("Unable to Abort CCB #%ld to Target %d - No Outgoing Mailboxes\n", adapter, ccb->serial, tgt_id);
3153 return FAILURE;
3154 }
3155 } else {
3156 /*
3157 Call the FlashPoint SCCB Manager to abort execution of
3158 the CCB.
3159 */
3160 blogic_warn("Aborting CCB #%ld to Target %d\n", adapter,
3161 ccb->serial, tgt_id);
3162 blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried);
3163 FlashPoint_AbortCCB(adapter->cardhandle, ccb);
3164 /*
3165 The Abort may have already been completed and
3166 blogic_qcompleted_ccb been called, or it
3167 may still be pending.
3168 */
3169 if (ccb->status == BLOGIC_CCB_COMPLETE)
3170 blogic_process_ccbs(adapter);
3171 return SUCCESS;
3172 }
3173 return SUCCESS;
3174}
3175
3176#endif
3177/*
3178 blogic_resetadapter resets Host Adapter if possible, marking all
3179 currently executing SCSI Commands as having been Reset.
3180*/
3181
3182static int blogic_resetadapter(struct blogic_adapter *adapter, bool hard_reset)
3183{
3184 struct blogic_ccb *ccb;
3185 int tgt_id;
3186
3187 /*
3188 * Attempt to Reset and Reinitialize the Host Adapter.
3189 */
3190
3191 if (!(blogic_hwreset(adapter, hard_reset) &&
3192 blogic_initadapter(adapter))) {
3193 blogic_err("Resetting %s Failed\n", adapter,
3194 adapter->full_model);
3195 return FAILURE;
3196 }
3197
3198 /*
3199 * Deallocate all currently executing CCBs.
3200 */
3201
3202 for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
3203 if (ccb->status == BLOGIC_CCB_ACTIVE)
3204 blogic_dealloc_ccb(ccb, 1);
3205 /*
3206 * Wait a few seconds between the Host Adapter Hard Reset which
3207 * initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
3208 * SCSI devices get confused if they receive SCSI Commands too soon
3209 * after a SCSI Bus Reset.
3210 */
3211
3212 if (hard_reset) {
3213 spin_unlock_irq(adapter->scsi_host->host_lock);
3214 blogic_delay(adapter->bus_settle_time);
3215 spin_lock_irq(adapter->scsi_host->host_lock);
3216 }
3217
3218 for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) {
3219 adapter->last_resettried[tgt_id] = jiffies;
3220 adapter->last_resetdone[tgt_id] = jiffies;
3221 }
3222 return SUCCESS;
3223}
3224
3225/*
3226 blogic_diskparam returns the Heads/Sectors/Cylinders BIOS Disk
3227 Parameters for Disk. The default disk geometry is 64 heads, 32 sectors, and
3228 the appropriate number of cylinders so as not to exceed drive capacity. In
3229 order for disks equal to or larger than 1 GB to be addressable by the BIOS
3230 without exceeding the BIOS limitation of 1024 cylinders, Extended Translation
3231 may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C"
3232 series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A"
3233 series MultiMaster Host Adapters. With Extended Translation enabled, drives
3234 between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128
3235 heads and 32 sectors, and drives above 2 GB inclusive are given a disk
3236 geometry of 255 heads and 63 sectors. However, if the BIOS detects that the
3237 Extended Translation setting does not match the geometry in the partition
3238 table, then the translation inferred from the partition table will be used by
3239 the BIOS, and a warning may be displayed.
3240*/
3241
3242static int blogic_diskparam(struct scsi_device *sdev, struct block_device *dev,
3243 sector_t capacity, int *params)
3244{
3245 struct blogic_adapter *adapter =
3246 (struct blogic_adapter *) sdev->host->hostdata;
3247 struct bios_diskparam *diskparam = (struct bios_diskparam *) params;
3248 unsigned char *buf;
3249
3250 if (adapter->ext_trans_enable && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */) {
3251 if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */) {
3252 diskparam->heads = 255;
3253 diskparam->sectors = 63;
3254 } else {
3255 diskparam->heads = 128;
3256 diskparam->sectors = 32;
3257 }
3258 } else {
3259 diskparam->heads = 64;
3260 diskparam->sectors = 32;
3261 }
3262 diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors);
3263 buf = scsi_bios_ptable(dev);
3264 if (buf == NULL)
3265 return 0;
3266 /*
3267 If the boot sector partition table flag is valid, search for
3268 a partition table entry whose end_head matches one of the
3269 standard BusLogic geometry translations (64/32, 128/32, or 255/63).
3270 */
3271 if (*(unsigned short *) (buf + 64) == MSDOS_LABEL_MAGIC) {
3272 struct msdos_partition *part1_entry =
3273 (struct msdos_partition *)buf;
3274 struct msdos_partition *part_entry = part1_entry;
3275 int saved_cyl = diskparam->cylinders, part_no;
3276 unsigned char part_end_head = 0, part_end_sector = 0;
3277
3278 for (part_no = 0; part_no < 4; part_no++) {
3279 part_end_head = part_entry->end_head;
3280 part_end_sector = part_entry->end_sector & 0x3F;
3281 if (part_end_head == 64 - 1) {
3282 diskparam->heads = 64;
3283 diskparam->sectors = 32;
3284 break;
3285 } else if (part_end_head == 128 - 1) {
3286 diskparam->heads = 128;
3287 diskparam->sectors = 32;
3288 break;
3289 } else if (part_end_head == 255 - 1) {
3290 diskparam->heads = 255;
3291 diskparam->sectors = 63;
3292 break;
3293 }
3294 part_entry++;
3295 }
3296 if (part_no == 4) {
3297 part_end_head = part1_entry->end_head;
3298 part_end_sector = part1_entry->end_sector & 0x3F;
3299 }
3300 diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors);
3301 if (part_no < 4 && part_end_sector == diskparam->sectors) {
3302 if (diskparam->cylinders != saved_cyl)
3303 blogic_warn("Adopting Geometry %d/%d from Partition Table\n", adapter, diskparam->heads, diskparam->sectors);
3304 } else if (part_end_head > 0 || part_end_sector > 0) {
3305 blogic_warn("Warning: Partition Table appears to have Geometry %d/%d which is\n", adapter, part_end_head + 1, part_end_sector);
3306 blogic_warn("not compatible with current BusLogic Host Adapter Geometry %d/%d\n", adapter, diskparam->heads, diskparam->sectors);
3307 }
3308 }
3309 kfree(buf);
3310 return 0;
3311}
3312
3313
3314/*
3315 BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>.
3316*/
3317
3318static int blogic_write_info(struct Scsi_Host *shost, char *procbuf,
3319 int bytes_avail)
3320{
3321 struct blogic_adapter *adapter =
3322 (struct blogic_adapter *) shost->hostdata;
3323 struct blogic_tgt_stats *tgt_stats;
3324
3325 tgt_stats = adapter->tgt_stats;
3326 adapter->ext_resets = 0;
3327 adapter->adapter_intern_errors = 0;
3328 memset(tgt_stats, 0, BLOGIC_MAXDEV * sizeof(struct blogic_tgt_stats));
3329 return 0;
3330}
3331
3332static int blogic_show_info(struct seq_file *m, struct Scsi_Host *shost)
3333{
3334 struct blogic_adapter *adapter = (struct blogic_adapter *) shost->hostdata;
3335 struct blogic_tgt_stats *tgt_stats;
3336 int tgt;
3337
3338 tgt_stats = adapter->tgt_stats;
3339 seq_write(m, adapter->msgbuf, adapter->msgbuflen);
3340 seq_printf(m, "\n\
3341Current Driver Queue Depth: %d\n\
3342Currently Allocated CCBs: %d\n", adapter->drvr_qdepth, adapter->alloc_ccbs);
3343 seq_puts(m, "\n\n\
3344 DATA TRANSFER STATISTICS\n\
3345\n\
3346Target Tagged Queuing Queue Depth Active Attempted Completed\n\
3347====== ============== =========== ====== ========= =========\n");
3348 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3349 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3350 if (!tgt_flags->tgt_exists)
3351 continue;
3352 seq_printf(m, " %2d %s", tgt, (tgt_flags->tagq_ok ? (tgt_flags->tagq_active ? " Active" : (adapter->tagq_ok & (1 << tgt)
3353 ? " Permitted" : " Disabled"))
3354 : "Not Supported"));
3355 seq_printf(m,
3356 " %3d %3u %9u %9u\n", adapter->qdepth[tgt], adapter->active_cmds[tgt], tgt_stats[tgt].cmds_tried, tgt_stats[tgt].cmds_complete);
3357 }
3358 seq_puts(m, "\n\
3359Target Read Commands Write Commands Total Bytes Read Total Bytes Written\n\
3360====== ============= ============== =================== ===================\n");
3361 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3362 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3363 if (!tgt_flags->tgt_exists)
3364 continue;
3365 seq_printf(m, " %2d %9u %9u", tgt, tgt_stats[tgt].read_cmds, tgt_stats[tgt].write_cmds);
3366 if (tgt_stats[tgt].bytesread.billions > 0)
3367 seq_printf(m, " %9u%09u", tgt_stats[tgt].bytesread.billions, tgt_stats[tgt].bytesread.units);
3368 else
3369 seq_printf(m, " %9u", tgt_stats[tgt].bytesread.units);
3370 if (tgt_stats[tgt].byteswritten.billions > 0)
3371 seq_printf(m, " %9u%09u\n", tgt_stats[tgt].byteswritten.billions, tgt_stats[tgt].byteswritten.units);
3372 else
3373 seq_printf(m, " %9u\n", tgt_stats[tgt].byteswritten.units);
3374 }
3375 seq_puts(m, "\n\
3376Target Command 0-1KB 1-2KB 2-4KB 4-8KB 8-16KB\n\
3377====== ======= ========= ========= ========= ========= =========\n");
3378 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3379 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3380 if (!tgt_flags->tgt_exists)
3381 continue;
3382 seq_printf(m,
3383 " %2d Read %9u %9u %9u %9u %9u\n", tgt,
3384 tgt_stats[tgt].read_sz_buckets[0],
3385 tgt_stats[tgt].read_sz_buckets[1], tgt_stats[tgt].read_sz_buckets[2], tgt_stats[tgt].read_sz_buckets[3], tgt_stats[tgt].read_sz_buckets[4]);
3386 seq_printf(m,
3387 " %2d Write %9u %9u %9u %9u %9u\n", tgt,
3388 tgt_stats[tgt].write_sz_buckets[0],
3389 tgt_stats[tgt].write_sz_buckets[1], tgt_stats[tgt].write_sz_buckets[2], tgt_stats[tgt].write_sz_buckets[3], tgt_stats[tgt].write_sz_buckets[4]);
3390 }
3391 seq_puts(m, "\n\
3392Target Command 16-32KB 32-64KB 64-128KB 128-256KB 256KB+\n\
3393====== ======= ========= ========= ========= ========= =========\n");
3394 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3395 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3396 if (!tgt_flags->tgt_exists)
3397 continue;
3398 seq_printf(m,
3399 " %2d Read %9u %9u %9u %9u %9u\n", tgt,
3400 tgt_stats[tgt].read_sz_buckets[5],
3401 tgt_stats[tgt].read_sz_buckets[6], tgt_stats[tgt].read_sz_buckets[7], tgt_stats[tgt].read_sz_buckets[8], tgt_stats[tgt].read_sz_buckets[9]);
3402 seq_printf(m,
3403 " %2d Write %9u %9u %9u %9u %9u\n", tgt,
3404 tgt_stats[tgt].write_sz_buckets[5],
3405 tgt_stats[tgt].write_sz_buckets[6], tgt_stats[tgt].write_sz_buckets[7], tgt_stats[tgt].write_sz_buckets[8], tgt_stats[tgt].write_sz_buckets[9]);
3406 }
3407 seq_puts(m, "\n\n\
3408 ERROR RECOVERY STATISTICS\n\
3409\n\
3410 Command Aborts Bus Device Resets Host Adapter Resets\n\
3411Target Requested Completed Requested Completed Requested Completed\n\
3412 ID \\\\\\\\ Attempted //// \\\\\\\\ Attempted //// \\\\\\\\ Attempted ////\n\
3413====== ===== ===== ===== ===== ===== ===== ===== ===== =====\n");
3414 for (tgt = 0; tgt < adapter->maxdev; tgt++) {
3415 struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
3416 if (!tgt_flags->tgt_exists)
3417 continue;
3418 seq_printf(m, " %2d %5d %5d %5d %5d %5d %5d %5d %5d %5d\n",
3419 tgt, tgt_stats[tgt].aborts_request,
3420 tgt_stats[tgt].aborts_tried,
3421 tgt_stats[tgt].aborts_done,
3422 tgt_stats[tgt].bdr_request,
3423 tgt_stats[tgt].bdr_tried,
3424 tgt_stats[tgt].bdr_done,
3425 tgt_stats[tgt].adapter_reset_req,
3426 tgt_stats[tgt].adapter_reset_attempt,
3427 tgt_stats[tgt].adapter_reset_done);
3428 }
3429 seq_printf(m, "\nExternal Host Adapter Resets: %d\n", adapter->ext_resets);
3430 seq_printf(m, "Host Adapter Internal Errors: %d\n", adapter->adapter_intern_errors);
3431 return 0;
3432}
3433
3434
3435/*
3436 blogic_msg prints Driver Messages.
3437*/
3438__printf(2, 4)
3439static void blogic_msg(enum blogic_msglevel msglevel, char *fmt,
3440 struct blogic_adapter *adapter, ...)
3441{
3442 static char buf[BLOGIC_LINEBUF_SIZE];
3443 static bool begin = true;
3444 va_list args;
3445 int len = 0;
3446
3447 va_start(args, adapter);
3448 len = vscnprintf(buf, sizeof(buf), fmt, args);
3449 va_end(args);
3450 if (msglevel == BLOGIC_ANNOUNCE_LEVEL) {
3451 static int msglines = 0;
3452 strcpy(&adapter->msgbuf[adapter->msgbuflen], buf);
3453 adapter->msgbuflen += len;
3454 if (++msglines <= 2)
3455 printk("%sscsi: %s", blogic_msglevelmap[msglevel], buf);
3456 } else if (msglevel == BLOGIC_INFO_LEVEL) {
3457 strcpy(&adapter->msgbuf[adapter->msgbuflen], buf);
3458 adapter->msgbuflen += len;
3459 if (begin) {
3460 if (buf[0] != '\n' || len > 1)
3461 printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf);
3462 } else
3463 pr_cont("%s", buf);
3464 } else {
3465 if (begin) {
3466 if (adapter != NULL && adapter->adapter_initd)
3467 printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf);
3468 else
3469 printk("%s%s", blogic_msglevelmap[msglevel], buf);
3470 } else
3471 pr_cont("%s", buf);
3472 }
3473 begin = (buf[len - 1] == '\n');
3474}
3475
3476
3477/*
3478 blogic_parse parses an individual option keyword. It returns true
3479 and updates the pointer if the keyword is recognized and false otherwise.
3480*/
3481
3482static bool __init blogic_parse(char **str, char *keyword)
3483{
3484 char *pointer = *str;
3485 while (*keyword != '\0') {
3486 char strch = *pointer++;
3487 char keywordch = *keyword++;
3488 if (strch >= 'A' && strch <= 'Z')
3489 strch += 'a' - 'Z';
3490 if (keywordch >= 'A' && keywordch <= 'Z')
3491 keywordch += 'a' - 'Z';
3492 if (strch != keywordch)
3493 return false;
3494 }
3495 *str = pointer;
3496 return true;
3497}
3498
3499
3500/*
3501 blogic_parseopts handles processing of BusLogic Driver Options
3502 specifications.
3503
3504 BusLogic Driver Options may be specified either via the Linux Kernel Command
3505 Line or via the Loadable Kernel Module Installation Facility. Driver Options
3506 for multiple host adapters may be specified either by separating the option
3507 strings by a semicolon, or by specifying multiple "BusLogic=" strings on the
3508 command line. Individual option specifications for a single host adapter are
3509 separated by commas. The Probing and Debugging Options apply to all host
3510 adapters whereas the remaining options apply individually only to the
3511 selected host adapter.
3512
3513 The BusLogic Driver Probing Options are described in
3514 <file:Documentation/scsi/BusLogic.rst>.
3515*/
3516
3517static int __init blogic_parseopts(char *options)
3518{
3519 while (true) {
3520 struct blogic_drvr_options *drvr_opts =
3521 &blogic_drvr_options[blogic_drvr_options_count++];
3522 int tgt_id;
3523
3524 memset(drvr_opts, 0, sizeof(struct blogic_drvr_options));
3525 while (*options != '\0' && *options != ';') {
3526 if (blogic_parse(&options, "NoProbePCI"))
3527 blogic_probe_options.noprobe_pci = true;
3528 else if (blogic_parse(&options, "NoProbe"))
3529 blogic_probe_options.noprobe = true;
3530 else if (blogic_parse(&options, "NoSortPCI"))
3531 blogic_probe_options.nosort_pci = true;
3532 else if (blogic_parse(&options, "MultiMasterFirst"))
3533 blogic_probe_options.multimaster_first = true;
3534 else if (blogic_parse(&options, "FlashPointFirst"))
3535 blogic_probe_options.flashpoint_first = true;
3536 /* Tagged Queuing Options. */
3537 else if (blogic_parse(&options, "QueueDepth:[") ||
3538 blogic_parse(&options, "QD:[")) {
3539 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
3540 unsigned short qdepth = simple_strtoul(options, &options, 0);
3541 if (qdepth > BLOGIC_MAX_TAG_DEPTH) {
3542 blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth);
3543 return 0;
3544 }
3545 drvr_opts->qdepth[tgt_id] = qdepth;
3546 if (*options == ',')
3547 options++;
3548 else if (*options == ']')
3549 break;
3550 else {
3551 blogic_err("BusLogic: Invalid Driver Options (',' or ']' expected at '%s')\n", NULL, options);
3552 return 0;
3553 }
3554 }
3555 if (*options != ']') {
3556 blogic_err("BusLogic: Invalid Driver Options (']' expected at '%s')\n", NULL, options);
3557 return 0;
3558 } else
3559 options++;
3560 } else if (blogic_parse(&options, "QueueDepth:") || blogic_parse(&options, "QD:")) {
3561 unsigned short qdepth = simple_strtoul(options, &options, 0);
3562 if (qdepth == 0 ||
3563 qdepth > BLOGIC_MAX_TAG_DEPTH) {
3564 blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth);
3565 return 0;
3566 }
3567 drvr_opts->common_qdepth = qdepth;
3568 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++)
3569 drvr_opts->qdepth[tgt_id] = qdepth;
3570 } else if (blogic_parse(&options, "TaggedQueuing:") ||
3571 blogic_parse(&options, "TQ:")) {
3572 if (blogic_parse(&options, "Default")) {
3573 drvr_opts->tagq_ok = 0x0000;
3574 drvr_opts->tagq_ok_mask = 0x0000;
3575 } else if (blogic_parse(&options, "Enable")) {
3576 drvr_opts->tagq_ok = 0xFFFF;
3577 drvr_opts->tagq_ok_mask = 0xFFFF;
3578 } else if (blogic_parse(&options, "Disable")) {
3579 drvr_opts->tagq_ok = 0x0000;
3580 drvr_opts->tagq_ok_mask = 0xFFFF;
3581 } else {
3582 unsigned short tgt_bit;
3583 for (tgt_id = 0, tgt_bit = 1;
3584 tgt_id < BLOGIC_MAXDEV;
3585 tgt_id++, tgt_bit <<= 1)
3586 switch (*options++) {
3587 case 'Y':
3588 drvr_opts->tagq_ok |= tgt_bit;
3589 drvr_opts->tagq_ok_mask |= tgt_bit;
3590 break;
3591 case 'N':
3592 drvr_opts->tagq_ok &= ~tgt_bit;
3593 drvr_opts->tagq_ok_mask |= tgt_bit;
3594 break;
3595 case 'X':
3596 break;
3597 default:
3598 options--;
3599 tgt_id = BLOGIC_MAXDEV;
3600 break;
3601 }
3602 }
3603 }
3604 /* Miscellaneous Options. */
3605 else if (blogic_parse(&options, "BusSettleTime:") ||
3606 blogic_parse(&options, "BST:")) {
3607 unsigned short bus_settle_time =
3608 simple_strtoul(options, &options, 0);
3609 if (bus_settle_time > 5 * 60) {
3610 blogic_err("BusLogic: Invalid Driver Options (invalid Bus Settle Time %d)\n", NULL, bus_settle_time);
3611 return 0;
3612 }
3613 drvr_opts->bus_settle_time = bus_settle_time;
3614 } else if (blogic_parse(&options,
3615 "InhibitTargetInquiry"))
3616 drvr_opts->stop_tgt_inquiry = true;
3617 /* Debugging Options. */
3618 else if (blogic_parse(&options, "TraceProbe"))
3619 blogic_global_options.trace_probe = true;
3620 else if (blogic_parse(&options, "TraceHardwareReset"))
3621 blogic_global_options.trace_hw_reset = true;
3622 else if (blogic_parse(&options, "TraceConfiguration"))
3623 blogic_global_options.trace_config = true;
3624 else if (blogic_parse(&options, "TraceErrors"))
3625 blogic_global_options.trace_err = true;
3626 else if (blogic_parse(&options, "Debug")) {
3627 blogic_global_options.trace_probe = true;
3628 blogic_global_options.trace_hw_reset = true;
3629 blogic_global_options.trace_config = true;
3630 blogic_global_options.trace_err = true;
3631 }
3632 if (*options == ',')
3633 options++;
3634 else if (*options != ';' && *options != '\0') {
3635 blogic_err("BusLogic: Unexpected Driver Option '%s' ignored\n", NULL, options);
3636 *options = '\0';
3637 }
3638 }
3639 if (!(blogic_drvr_options_count == 0 ||
3640 blogic_probeinfo_count == 0 ||
3641 blogic_drvr_options_count == blogic_probeinfo_count)) {
3642 blogic_err("BusLogic: Invalid Driver Options (all or no I/O Addresses must be specified)\n", NULL);
3643 return 0;
3644 }
3645 /*
3646 Tagged Queuing is disabled when the Queue Depth is 1 since queuing
3647 multiple commands is not possible.
3648 */
3649 for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++)
3650 if (drvr_opts->qdepth[tgt_id] == 1) {
3651 unsigned short tgt_bit = 1 << tgt_id;
3652 drvr_opts->tagq_ok &= ~tgt_bit;
3653 drvr_opts->tagq_ok_mask |= tgt_bit;
3654 }
3655 if (*options == ';')
3656 options++;
3657 if (*options == '\0')
3658 return 0;
3659 }
3660 return 1;
3661}
3662
3663/*
3664 Get it all started
3665*/
3666
3667static const struct scsi_host_template blogic_template = {
3668 .module = THIS_MODULE,
3669 .proc_name = "BusLogic",
3670 .write_info = blogic_write_info,
3671 .show_info = blogic_show_info,
3672 .name = "BusLogic",
3673 .info = blogic_drvr_info,
3674 .queuecommand = blogic_qcmd,
3675 .slave_configure = blogic_slaveconfig,
3676 .bios_param = blogic_diskparam,
3677 .eh_host_reset_handler = blogic_hostreset,
3678#if 0
3679 .eh_abort_handler = blogic_abort,
3680#endif
3681 .max_sectors = 128,
3682};
3683
3684/*
3685 blogic_setup handles processing of Kernel Command Line Arguments.
3686*/
3687
3688static int __init blogic_setup(char *str)
3689{
3690 int ints[3];
3691
3692 (void) get_options(str, ARRAY_SIZE(ints), ints);
3693
3694 if (ints[0] != 0) {
3695 blogic_err("BusLogic: Obsolete Command Line Entry Format Ignored\n", NULL);
3696 return 0;
3697 }
3698 if (str == NULL || *str == '\0')
3699 return 0;
3700 return blogic_parseopts(str);
3701}
3702
3703/*
3704 * Exit function. Deletes all hosts associated with this driver.
3705 */
3706
3707static void __exit blogic_exit(void)
3708{
3709 struct blogic_adapter *ha, *next;
3710
3711 list_for_each_entry_safe(ha, next, &blogic_host_list, host_list)
3712 blogic_deladapter(ha);
3713}
3714
3715__setup("BusLogic=", blogic_setup);
3716
3717#ifdef MODULE
3718/*static struct pci_device_id blogic_pci_tbl[] = {
3719 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
3720 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3721 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
3722 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3723 { PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
3724 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
3725 { }
3726};*/
3727static const struct pci_device_id blogic_pci_tbl[] = {
3728 {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER)},
3729 {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC)},
3730 {PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT)},
3731 {0, },
3732};
3733#endif
3734MODULE_DEVICE_TABLE(pci, blogic_pci_tbl);
3735
3736module_init(blogic_init);
3737module_exit(blogic_exit);