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